Dish washing machine

This application is related to, and claims the priority benefit to, Korean Patent Application Nos. 10-2014-0133208 and 10-2015-0078919, filed on Oct. 2, 2014 and Jun. 4, 2015, respectively, in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference.

1. Field

Embodiments of the disclosure relate to a dish washing machine, and more particularly, to a dish washing machine having a structure improved to increase washing efficiency.

2. Description of the Related Art

Dish washing machines wash dishes by spraying high-pressure washing water to the dishes and each include a washing tub for washing the dishes, a dish basket mounted in the washing tub to store the dishes, a sump for collecting the washing water for washing the dishes, and a pump and nozzle for injecting the washing water into the washing tub.

Generally, dish washing machines employ a rotor-type injection structure having a rotating injection nozzle. A rotating nozzle injects washing water while rotating due to water pressure.

However, since such rotating nozzle injects the washing water only within a range in a radius of rotation, an area to which the washing water is not injected may occur. Accordingly, to prevent the area to which the washing water is not injected from occurring, so-called linear type injection structures have been provided.

Linear type injection structures each include a fixed nozzle fixed to one side of a washing tub and a vane that moves inside the washing tub and deflects washing water injected from the fixed nozzle toward dishes, thereby injecting the washing water to areas of the washing tub according to the movement of a deflection plate.

The fixed nozzle includes a plurality of injection holes arranged to the left and right in the washing tub and is fixed to a rear wall of the washing tub. The vane extends to the left and right in the washing tub to deflect the washing water injected from the plurality of injection holes and may be provided to linearly reciprocate between the front and rear of the washing tub.

Also, linear type injection structures each include a driving device capable of driving the vane. The driving device may be implemented in various ways but may be provided to, for example, include a motor, a belt that is connected to the motor and transfers a driving force to the vane, and a rail that guides the movement of the vane in such a way that, when the motor is driven, the belt rotates to move the vane on the rail.

In the case of such linear type injection structures, to allow a water stream injected from the fixed nozzle to hit the vane, it is necessary to maintain more than a certain height of the vane, and the height of the vane reduces an internal volume, thereby reducing a maximum size of loadable plates.

Meanwhile, dish baskets are mounted on a top and bottom of the washing tub to be slidable forward and backward. It is necessary to adjust a height of dish baskets to store and wash various types and sizes of dishware such as bowls and plates.

Therefore, it is an aspect of the disclosure to provide a dish washing machine including a linear type injection unit.

It is an aspect of the disclosure to provide a dish washing machine having a structure improved to increase washing efficiency.

It is an aspect of the disclosure to provide a dish washing machine including a vane unit and a flow channel switching device.

It is an aspect of the disclosure to provide a dish washing machine having a linear type injection structure, and that can be providing in a linear type compact size by lowering a height of a vane through a reduction of a nozzle hit distance to enlarge a dishware and cookware loading volume.

It is an aspect of the disclosure to provide a dish washing machine including a height-adjustable linear type injection unit of a basket to store various types of dishware and cookware.

It is an aspect of the disclosure to provide a dish washing machine including a driving device for a height-adjustable linear type injection unit.

Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

In accordance with an aspect of the disclosure, a dish washing machine includes a washing tub for washing dishes, an injection unit to inject washing water into the washing tub, and a deflection unit to move inside the washing tub to deflect the washing water injected from the injection unit toward the dishes, in which the deflection unit includes a first vane linearly movable and a second vane disposed in parallel with the first vane in a moving direction of the first vane.

The first vane may be linearly movable in a first direction and a second direction opposite to the first direction, and the second vane interworkable with the first vane.

The injection unit may include an injection nozzle to inject the washing water in the first direction toward one side from the center of the washing tub and the second direction toward the other side from the center of the washing tub.

The dish washing machine may include a rail assembly that guides the movement of the deflection unit, and the rail assembly may include a rail that extends in the first direction and the second direction and a holder unit configured such that the rail is installed.

The holder unit may include a holder frame configured such that the rail is connected, a front holder installed on one end of the holder frame, and a rear holder installed on the other end of the holder frame.

The dish washing machine may include a dish basket to store the dishes, and at least one of the front holder and the rear holder may be coupled with the dish basket.

The deflection unit may include a moving rail that connects the first vane with the second vane and a rail coupling portion configured such that the first vane and the second vane are movably coupled with the rail.

The dish washing machine may include a motor assembly to move the deflection unit. The motor assembly may include a motor that generates torque, a first gear connected to a shaft of the motor, and a second gear connected to the first gear and to transfer a driving force of the motor to the deflection unit.

The second gear may be formed on at least a part of the moving rail.

The deflection unit may further include a vane holder configured such that the first vane and the second vane are movably coupled with the rail. The vane holder may include a coupling protrusion formed such that the first vane and the second vane are rotatably coupled, and the first vane and the second vane each may include a coupling groove that is rotatably coupled with the coupling protrusion.

The injection unit may include a fixed nozzle provided in the rear of the washing tub and to inject the washing water and an injection case provided to be connected to the fixed nozzle and including an injection nozzle formed to extend forward and rearward in the washing tub and to inject the washing water.

The injection nozzle may include a first nozzle formed on one end of the injection case to inject the washing water in the first direction and a second nozzle formed on the other end of the injection case to inject the washing water in the second direction.

The injection case may include a first injection flow channel to inject the washing water through the first nozzle and a second injection flow channel to inject the washing water through the second nozzle, and the first injection flow channel and the second injection flow channel may be divided by a partition.

The injection case may include a rotation guide to rotate the first vane and the second vane.

The dish washing machine may include a flow channel switching unit to supply the washing water to at least any one of the first injection flow channel and the second injection flow channel.

The flow channel switching unit may include a motor that generates a driving force.

The flow channel switching unit may include a flow channel switching holder movable in the first direction and the second direction and to switch a flow channel, and the flow channel switching holder may switch a moving direction of the deflection unit to an opposite direction upon being pressurized in the moving direction of the deflection unit.

The dish washing machine may include a sensor unit to limit a moving distance of the deflection unit.

In accordance with an aspect of the disclosure, a dish washing machine includes a washing tub for washing dishes, an injection unit configured to inject washing water in a first direction toward one side from the center of the washing tub and a second direction opposite to the first direction, a first vane linearly movable inside the washing tub to deflect the washing water to at least a part of the washing tub, and a second vane movable in parallel with the first vane to deflect the washing water to another part of the washing tub.

The dish washing machine may include a rail that extends in the first direction and the second direction to guide the movement of the first vane and the second vane.

The dish washing machine may include a moving rail that connects the first vane with the second vane and a vane holder movably coupled to the rail.

The first vane and the second vane may be rotatably coupled with the vane holder.

The injection unit may include a fixed nozzle provided in the rear of the washing tub and to inject the washing water and an injection case provided to be connected to the fixed nozzle and including an injection nozzle formed to extend forward and rearward in the washing tub to inject the washing water.

The injection nozzle may include a first nozzle formed on one end of the injection case to inject the washing water in the first direction and a second nozzle formed on the other end of the injection case to inject the washing water in the second direction.

The injection case may include a first injection flow channel to inject the washing water through the first nozzle and a second injection flow channel to inject the washing water through the second nozzle, and the first injection flow channel and the second injection flow channel may be divided by a partition.

The first flow channel and the second flow channel each may be sealed using a sealing member.

The injection case may include a rotation guide configured to rotate the first vane and the second vane.

The dish washing machine may include a flow channel switching unit to supply the washing water to at least any one of the first injection flow channel and the second injection flow channel.

The flow channel switching unit may include a motor that generates a driving force.

The flow channel switching unit may include a flow channel switching holder to be movable in the first direction and the second direction and to switch a flow channel, and the flow channel switching holder may switch moving directions of the first vane and the second vane to opposite directions upon being pressurized in the moving directions of the first vane and the second vane.

The dish washing machine may include a sensor unit to limit moving distances of the first vane and the second vane.

The dish washing machine may include a dish basket to store the dishes in the washing tub with a variable installation position. The first vane and the second vane may be provided below the dish basket and may include a holder unit couplable with the dish basket.

The washing tub may include at least one guide rail supporting the dish basket with the variable installation position.

In accordance an aspect of the disclosure, a dish washing machine includes a washing tub for washing dishes, a first nozzle to inject washing water in a first direction toward one side from the center of the washing tub, a second nozzle to inject the washing water in a second direction opposite to the first direction, a first vane movable to deflect the washing water injected from the first nozzle toward the dishes, a second vane movable in a moving direction of the first vane to deflect the washing water injected from the second nozzle toward the dishes, and a flow channel switching unit to supply the washing water to at least any one of the first nozzle and the second nozzle

The injection unit may include a fixed nozzle provided in the rear of the washing tub and to inject the washing water and an injection case provided to be connected to the fixed nozzle and including an injection nozzle formed to extend forward and rearward in the washing tub to inject the washing water.

The injection case may include a first injection flow channel to inject the washing water through the first nozzle and a second injection flow channel to inject the washing water through the second nozzle, and the first injection flow channel and the second injection flow channel may be divided by a partition.

The first flow channel and the second flow channel each may be sealed using a sealing member.

The flow channel switching unit may include a flow channel switching holder movable in the first direction and the second direction and to switch a flow channel, and the flow channel switching holder may switch moving directions of the first vane and the second vane to opposite directions upon being pressurized in the moving directions of the first vane and the second vane.

The dish washing machine may include a sensor unit to limit moving distances of the first nozzle and the second nozzle.

The flow channel switching unit may include a motor that generates a driving force.

The injection unit, the first vane, and the second vane may be installed in the dish basket.

The dish washing machine may include a dish basket to store the dishes in the washing tub with a variable installation position, and the first vane and the second vane may include a holder unit couplable with the dish basket.

In accordance with yet another aspect of the disclosure, a dish washing machine includes a cabinet forming an exterior, a washing tub provided in the cabinet and to wash dishes, an injection unit to inject washing water into the washing tub, a dish basket to store the dishes in the washing tub with a variable installation position, a deflection unit provided below the dish basket, on a path of the washing water injected from the injection unit to switch a direction of the injected washing water, and a power transmission device that transfers power such that the deflection unit is movable below the dish basket. The power transmission device includes a motor fixed to one side of the washing tub and to generate a driving force and a gear unit to transfer the driving force of the motor to the deflection unit and including a plurality of gears formed at different heights to correspond to a variable position of the dish basket.

The gear unit may include a first gear, a second gear disposed spaced from the first gear, and a plurality of connection gears to connect the first gear with the second gear.

The deflection unit may include a vane movable inside the washing tub to deflect the washing water injected from the injection unit toward the dishes, a rail guiding the movement of the vane, a belt that rotates while connected to a driving pulley and an idle pulley to transfer the driving force of the motor to the vane, a rear holder rotatably supporting the driving pulley and coupled with one end of the rail due to the tension of the belt, and a front holder rotatably supporting the idle pulley and coupled with the other end of the rail due to the tension of the belt.

One of the plurality of connection gears may be connected to the driving pulley.

The plurality of connection gears may include a first connection gear connected to the first gear, a second connection gear connected to the second gear, and at least one reduction gear horizontally connected to the second connection gear.

The dish washing machine may include a connection shaft that vertically connects the first connection gear with the second connection gear.

The gear unit may be integrated with one side of the dish basket.

The washing tub may include at least one guide rail supporting the dish basket such that a height of the dish basket is variable, and the at least one guide rail may include a first guide rail supporting the dish basket in a first position and a second guide rail supporting the dish basket in a second position spaced from the first rail.

The first gear may be connected to the motor when the dish basket is in the first position, and the second gear may be connected to the motor when the dish basket is in the second position.

The motor may be provided in the rear of the washing tub.

The injection unit may include a fixed nozzle provided in the rear of the washing tub and to inject the washing water and an injection case provided to be connected to the fixed nozzle and including a plurality of connection openings formed at different heights to correspond to a variable position of the dish basket and an injection nozzle to inject the washing water supplied through the connection openings.

The injection case may include a valve to open and close the plurality of connection openings therein.

These and/or other aspects of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view illustrating a configuration of a dish washing machine according to a first embodiment of the disclosure;

FIG. 2 is a view of a dish basket mounted in a washing tub of the dish washing machine according to the first embodiment of the disclosure;

FIG. 3 is a view illustrating an injection unit and a deflection unit of the dish washing machine according to the first embodiment of the disclosure;

FIG. 4 is an exploded perspective view illustrating the injection unit and the deflection unit according to the first embodiment of the disclosure;

FIG. 5 is an exploded perspective view a flow channel switching unit of the injection unit according to the first embodiment of the disclosure;

FIG. 6 is an exploded perspective view a motor assembly of the injection unit according to the first embodiment of the disclosure;

FIG. 7 is a view illustrating the motor assembly and the injection unit according to the first embodiment of the disclosure;

FIG. 8 is a view illustrating the injection unit and the flow channel switching unit according to the first embodiment of the disclosure;

FIG. 9 is a view illustrating the movement of a vane operated by a second gear connected to a first gear of the motor assembly according to the first embodiment of the disclosure;

FIG. 10 is an enlarged view of portion A illustrated in FIG. 8 , which illustrates the flow channel switching unit of the injection unit according to the first embodiment of the disclosure;

FIG. 11 is a view illustrating an operation of injecting washing water through a second injection flow channel, performed by the flow channel switching unit and a first vane according to the first embodiment of the disclosure;

FIG. 12 is a view illustrating an operation of a flow channel switching holder of the flow channel switching unit according to the first embodiment of the disclosure;

FIG. 13 is a view illustrating an operation of injecting washing water to a first injection flow channel, performed by the flow channel switching unit according to the first embodiment of the disclosure;

FIG. 14 is an exploded perspective view of a deflection unit according to a second embodiment of the disclosure;

FIG. 15 is a perspective view of a rotating vane unit of the deflection unit according to the second embodiment of the disclosure;

FIG. 16 is a view illustrating the movement of the rotating vane unit of the deflection unit according to the second embodiment of the disclosure;

FIGS. 17 to 19 are views illustrating rotating operations of rotating vanes of the rotating vane unit according to the second embodiment of the disclosure;

FIG. 20 is an exploded perspective view of an injection unit including a flow channel switching unit installed therein according to a third embodiment of the disclosure;

FIG. 21 is an exploded perspective view of the flow channel switching unit according to the third embodiment of the disclosure;

FIG. 22 is a view illustrating the injection unit and the flow channel switching unit according to the third embodiment of the disclosure;

FIGS. 23 and 24 are views illustrating an operation of the flow channel switching unit according to the third embodiment of the disclosure;

FIG. 25 is a view illustrating an injection unit and a flow channel switching unit according to a fourth embodiment of the disclosure;

FIG. 26 is an exploded perspective view of the flow channel switching unit according to the fourth embodiment of the disclosure;

FIGS. 27 to 29 are views illustrating an operation of the flow channel switching unit according to the fourth embodiment of the disclosure;

FIG. 30 is a view illustrating an injection unit and a deflection unit according to a fifth embodiment of the disclosure;

FIG. 31 is a view illustrating the injection unit and a flow channel switching unit according to the fifth embodiment of the disclosure;

FIG. 32 is an exploded perspective view of the flow channel switching unit according to the fifth embodiment of the disclosure;

FIG. 33 is a schematic diagram illustrating the movement of a vane unit according to an injection flow channel according to the fifth embodiment of the disclosure;

FIGS. 34 to 37 are views illustrating the movement of the vane unit caused by injection of washing water performed by the flow channel switching unit according to the fifth embodiment of the disclosure;

FIG. 38 is a view illustrating an injection unit and a deflection unit according to a sixth embodiment of the disclosure;

FIG. 39 is an exploded perspective view illustrating the injection unit and the deflection unit according to the sixth embodiment of the disclosure;

FIG. 40 is a schematic diagram of a connection portion of an injection body and an injection case according to the sixth embodiment of the disclosure;

FIG. 41 is a schematic diagram of a vane unit moved by a motor assembly according to the sixth embodiment of the disclosure;

FIGS. 42 to 45 are views illustrating the deflection of washing water according to the movement of the vane unit according to the sixth embodiment of the disclosure;

FIG. 46 is a view illustrating an injection unit and a deflection unit according to a seventh embodiment of the disclosure;

FIG. 47 is an exploded perspective view of a motor assembly for driving the deflection unit according to the seventh embodiment of the disclosure;

FIGS. 48 and 49 are exploded perspective views of the motor assembly according to the seventh embodiment of the disclosure;

FIGS. 50 and 51 are view illustrating the movement of the deflection unit according to the driving of the motor assembly according to the seventh embodiment of the disclosure;

FIG. 52 is a view illustrating an injection unit and a deflection unit installed in a dish basket installable at different heights according to an eighth embodiment of the disclosure;

FIG. 53 is a view illustrating a connection between a motor assembly of the deflection unit and a driving unit of a washing tub according to the eighth embodiment of the disclosure;

FIG. 54 is an exploded perspective view of the driving unit according to the eighth embodiment of the disclosure;

FIG. 55 is a cross-sectional view of the driving unit according to the eighth embodiment of the disclosure;

FIGS. 56 and 57 are views illustrating an operation of the driving unit according to the eighth embodiment of the disclosure;

FIG. 58 is a cross-sectional view illustrating a configuration of a dish washing machine according to a ninth embodiment of the disclosure;

FIG. 59 is a view of a dish basket mounted in a washing tub of the dish washing machine according to the ninth embodiment of the disclosure;

FIG. 60 is a view illustrating an injection unit, a deflection unit, and a power transmission device of the dish washing machine according to the ninth embodiment of the disclosure;

FIG. 61 is a schematic cross-sectional view of the injection unit according to the ninth embodiment of the disclosure;

FIG. 62 is an exploded perspective view illustrating the deflection unit and the power transmission device according to the ninth embodiment of the disclosure;

FIG. 63 is an exploded perspective view illustrating a belt and a belt holder of the deflection unit according to the ninth embodiment of the disclosure;

FIG. 64 is a view illustrating a washing water injection unit and the power transmission device according to the ninth embodiment of the disclosure;

FIG. 65 is a schematic cross-sectional view of a gear unit of the power transmission device according to the ninth embodiment of the disclosure;

FIG. 66 is a view illustrating connection between a motor and the gear unit of the power transmission device according to the ninth embodiment of the disclosure; and

FIGS. 67 and 68 are schematic diagrams of the dish basket installed at different heights according to the ninth embodiment of the disclosure.

Reference will now be made in detail to the embodiments of the disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

The term “dish” is used herein to refer to an item washable by the “dish” washing machine, and includes, for example, dishware and cookware. Hereinafter, exemplary embodiments of the disclosure will be described in detail with reference to the attached drawings. Terms used herein “a front end”, “a rear end”, “a top”, “a bottom”, “a top end”, and “a bottom end” may be defined based on the drawing. However, shapes and positions of respective components will not be limited thereto.

Hereinafter, exemplary embodiments of the disclosure will be described in detail with reference to the attached drawings.

Referring to FIGS. 1 and 2 , an exemplary dish washing machine 1 A according to a first embodiment of the disclosure is described.

The dish washing machine 1 A includes a cabinet 10 A, a washing tub 11 A provided inside the cabinet 10 A, dish baskets 20 A provided inside the washing tub 11 A to hold, e.g., store dishes, an injection unit 200 A provided inside the washing tub 11 A to inject washing water, and a deflection unit 100 A movable inside the washing tub 11 A to deflect the washing water (e.g., deflect the washing water toward the dishes).

A side (e.g., front side) of the cabinet 10 A may be openable to allow a user of the washing machine to place the dishes in the washing tub 11 A or to withdraw the dishes from the washing tub 11 A. A door 12 A may be included to open and close the washing tub 11 A.

The door 12 A may be hinge-coupled (e.g., with a bottom of the front side of the cabinet 10 A and rotatable, and to open and close the washing tub 11 A). The washing tub 11 A may include a top wall 11 Ac, a rear wall 11 Aa, left and right walls 11 Ad and 11 Ae, and a bottom plate 11 Ab.

A sump 15 A to store the washing water, a circulating pump 14 A to pump the washing water from the sump 15 A, and a drainage pump 13 A to discharge washing water from the sump 15 A to the outside of the cabinet 10 A, for example, together with waste are provided (e.g., below the washing tub 11 A of the cabinet 10 A).

The dish baskets 20 A may be racks, for example, wire racks formed of wires to allow the washing water to pass therethrough without ponding. The dish baskets 20 A may be detachably provided inside the washing tub 11 A. A handle 23 A to allow a user to detach, for example, smoothly detach, the dish basket 20 A may be provided on a top of a front side of the dish basket 20 A.

The dish baskets 20 A may include a first dish basket 21 A disposed, for example, on a bottom of the washing tub 11 A and a second dish basket 22 A disposed, for example, in the middle of the washing tub 11 A.

The first dish basket 21 A may be coupled, for example, slidably coupled by a fixed rail 41 A provided above the bottom plate 11 Ab of the washing tub 11 A.

The fixed rails 41 A may be on the left and right walls 11 Ad and 11 Ae of the washing tub 11 A, for example, in forward and rearward positions in the washing tub 11 A. Rollers, for example, fixed rollers 53 A may be installed on sides, for example, both sides of the first dish basket 21 A to be coupled, e.g., rotatably coupled with the fixed rails 41 A.

Accordingly, the fixed rollers 53 A of the first dish basket 21 A may be coupled with the fixed rails 41 A to slidably move the first dish basket 21 A, for example, in a forward and rearward direction so that the first dish basket may be attachable or detachable from the washing tub 11 A.

The second dish basket 22 A may be disposed in the middle of the washing tub 11 A and may be coupled, e.g., slidably coupled by a guide rail 42 A disposed. for example, in the middle of the washing tub 11 A.

The guide rails 42 A may be formed on the left and right walls 11 Ad and 11 Ae of the washing tub 11 A, for example, in forward and rearward positions.

Guide units 50 A couplable with the guide rails 42 A may be provided, for example, on both sides of the second dish basket 22 A. The guide units 50 A may each include a guide bracket 51 A coupled, e.g., fixedly coupled with the second dish basket 22 A and a guide roller 52 A formed on the guide bracket 51 A.

Accordingly, the guide rollers 52 A of the second dish basket 22 A may be coupled with the guide rails 42 A to move, e.g., slidably move the second dish basket 22 A, e.g., in a forward and a rearward direction in the washing tub 11 A so that the second basket is attachable or detachable from the washing tub 11 A.

The injection unit 200 A may be provided such that the dishes are able to be washed by injecting the washing water, for example, at a high pressure. The injection unit 200 A may include a nozzle, e.g., a rotating nozzle 16 provided on the top wall 11 Ac of the washing tub 11 A to inject the washing water while rotating, a first injection unit 210 A provided on the bottom of the washing tub 11 A, and a second injection unit 220 A disposed, for example, in a position spaced apart from the first injection unit 210 A, e.g., the middle of the washing tub 11 A and installable, for example, on a bottom of the second dish basket 22 .

The rotating nozzle 16 A may rotate above the second dish basket 22 A, for example, due to water pressure, and may inject washing water downward. A plurality of injection holes 16 Aa may be provided, for example, on a bottom end of the rotating nozzle 16 A. The rotating nozzle 16 A may inject the washing water directly toward the dishes stored in the second dish basket 22 A.

The first injection unit 210 A may be fixed to a side of the washing tub 11 A and may be disposed adjacent to the rear wall 11 Aa of the washing tub 11 A to inject the washing water, for example, toward a front of the washing tub 11 A. Accordingly, at least a part of the washing water injected by the first injection unit 210 A may not move directly toward the dishes.

The washing water injected by the first injection unit 210 A may deflect toward the first dish basket 21 A, for example, due to a first deflection unit 110 A. The first injection unit 210 A may include a first fixed nozzle 211 A, for example, provided forward on the rear wall 11 Aa of the washing tub 11 A.

The first deflection unit 110 A includes a vane 111 A to deflect the washing water, for example, injected from the first fixed nozzle 211 A toward the dishes in the first dish basket 21 A. The vane 111 A may extend, for example, between left and right sides of the washing tub 11 A. That is, a longitudinal one end of the vane 111 A may be formed adjacent to the left wall 11 Ad of the washing tub 11 A and a longitudinal other end of the vane 111 A may be formed adjacent to the right wall 11 Ae of the washing tub 11 A.

The vane 111 A may be provided such that it is able to linearly reciprocate, for example, in an injection direction of the washing water injected by the first fixed nozzle 211 A. The vane 111 A may be provided to move along a first lane 112 A. Accordingly, a linear injection structure including the first fixed nozzle 211 A and the vane 111 A may wash a large area of the washing tub 11 A upward from a bottom end of the washing tub 11 A, for example, without a blind spot. Such a washing may be differentiated from injecting washing water, for example, only within a radius of rotation of the rotating nozzle 16 A.

As illustrated in FIGS. 3 to 8 , the second dish basket 22 A may be located in washing tub 11 A a distance away from the first dish basket, e.g., in a middle portion of the washing tub 11 A.

A second injection unit 220 A to inject washing water and a second deflection unit 120 A may be provided at the second dish basket 22 A to deflect the washing water injected from the second injection unit 220 A toward the dishes.

The second injection unit 220 A may include a second nozzle, e.g., a second fixed nozzle 221 A provided on the rear wall 11 Aa of the washing tub 11 A and an injection case 222 A installed, for example, in the rear of the second dish basket 22 A and connected to the second fixed nozzle 221 A.

The second fixed nozzle 221 A may be provided to be fixed to the rear wall 11 Aa of the washing tub 11 A to inject the washing water to the washing tub 11 A. A fixed nozzle connection portion 224 A to connect the second fixed nozzle 221 A may be formed in a rear side of the injection case 222 A. The injection case 222 A may be fixedly disposed in the rear of the second dish basket 22 A.

The injection case 222 A may include an injection body 240 A formed, for example, to extend forward and injection nozzles 230 A formed, for example, on a side of the injection body 240 A, for example, on the left and right sides of the injection body 240 A.

An injection body connection portion 223 A having an open front to be connected with the injection body 240 A may be provided, for example, below the injection case 222 A.

The injection nozzles 230 A may each include a first nozzle 231 A protruding from the left of the injection body 240 A and a second nozzle 232 A protruding from the right of the injection body 240 A. A direction from the left of the injection body 240 A, that is, the center of the washing tub 11 A toward the left wall 11 Ad is referred to as a first direction “A” and a direction from the right of the injection body 240 A, that is, the center of the washing tub 11 A toward the right wall 11 Ae is referred to as a second direction “B”.

Accordingly, the injection nozzle 230 A may include the first nozzle 231 A formed in a first direction A and the second nozzle 232 A formed in a second direction B. The first nozzle 231 A and second nozzle 232 A may be formed on the left and the right of the injection body 240 A and may be mutually symmetrically disposed.

An injection flow channel 700 A (see, for example, FIG. 8 ) may be formed inside the injection body 240 A including the injection nozzles 230 A.

The second injection unit 220 A may include a flow channel switching unit 600 A provided to inject the washing water through at least one of the first nozzle 231 A and the second nozzle 232 A.

The flow channel switching unit 600 A may be located between the injection case 222 A and the injection body 240 A.

An injection case connection portion 241 A corresponding to the injection body connection portion 223 A of the injection case 222 A may be formed in a rear stage of the injection body. The flow channel switching unit 600 A may be disposed between the injection case connection portion 241 A of the injection body 240 A and the injection body connection portion 223 A of the injection case 222 A.

As illustrated in FIG. 5 , the flow channel switching unit 600 A of the second injection unit 220 A may include a flow channel switching member 610 A, a flow channel switching holder 620 A, and a sealing member 630 A.

The flow channel switching member 610 A may be installed, e.g., rotatably installed to open and close the injection flow channel 700 A. The flow channel switching member 610 A may be formed in a panel shape. The outside of the flow channel switching member 610 A may be formed of a sealing material, for example, including rubber to seal, for example, fully seal the injection flow channel 700 A.

A flow channel switching rotation shaft 612 A may be provided on one end of the flow channel switching member 610 A. A flow channel switching movement shaft 613 A may be provided on the other end thereof.

The flow channel switching rotation shaft 612 A of the flow channel switching member 610 A may be supported, e.g., rotatably supported by a rotation shaft fixing groove 243 A of the injection body 240 A.

The flow channel switching member 610 A may move to open and close the injection flow channel 700 A, for example, while the flow channel switching movement shaft 613 A rotates about the flow channel switching rotation shaft 612 A.

The flow channel switching movement shaft 613 A of the flow channel switching member 610 A may be fixed to the flow channel switching holder 620 A. The flow channel switching holder 620 A may include a first pressurized portion 621 A formed to protrude with respect to the first direction A based on a movement slit 623 A in the center and a second pressurized portion 622 A formed to protrude with respect to the second direction B.

The flow channel switching movement shaft 613 A may slidably move in the first direction A or the second direction B, for example, due to the first pressurized portion 621 A and the second pressurized portion 622 A. Due to the movement of the flow channel switching movement shaft 613 A, the flow channel switching member 610 A may be rotated about the flow channel switching rotation shaft 612 A.

For example, when the first pressurized portion 621 A of the flow channel switching holder 620 A is pressurized in the second direction B, the flow channel switching movement shaft 613 A may be rotated towards the second direction B on the flow channel switching rotation shaft 612 A, thereby moving the flow channel switching member 610 A. Upon the second pressurized portion 622 A being pressurized in the first direction A, the flow channel switching movement shaft 613 A may be rotated towards the first direction A on the flow channel switching rotation shaft 612 A, thereby moving the flow channel switching member 610 A.

A holder installation portion 242 A, for example, for installing the flow channel switching holder 620 A may be formed in the injection case connection portion 241 A of the injection body 240 A. The holder installation portion 242 A may be formed on each of the left and right sides of the injection body 240 A, for example, while being incised.

A sealing member 630 A for sealing, e.g., fully sealing the injection flow channel 700 A may be provided between the injection body 240 A and the injection case 222 A.

The second injection unit 220 A may be disposed below the second dish basket 22 A.

The washing water injected toward the first direction A and the washing water injected toward the second direction B of the washing tub 11 A through the second injection unit 220 A may deflect toward the dishes on the top through the second deflection unit 120 A installed below the second dish basket 22 A.

The second deflection unit 120 A includes a vane unit 121 A provided to reciprocate in a direction in which the washing water is injected. The vane unit 121 A may include a first vane 121 Aa disposed to deflect the washing water injected through the first nozzle 231 A of the injection nozzle 230 A and a second vane 121 Ab disposed to deflect the washing water injected through the second nozzle 232 A.

One end of each of the first vane 121 Aa and the second vane 121 Ab, in a longitudinal direction, may be adjacent to a front side of the washing tub 11 A and the other ends thereof may be formed adjacent to a rear side of the washing tub 11 A.

The first vane 121 Aa and the second vane 121 Ab may be disposed in parallel. The first vane 121 Aa and the second vane 121 Ab may be interconnected to interwork with each other.

The first vane 121 Aa and the second vane 121 Ab may include deflection surfaces 122 A and 123 A to allow the washing water injected through the first nozzle 231 A and the second nozzle 232 A to deflect, respectively. The first vane 121 Aa may include a first deflection surface 122 A, and the second vane 121 Ab may include a second deflection surface 123 A.

The first vane 121 Aa and the second vane 121 Ab may be disposed to be spaced from each other at a certain interval due to a vane connection portion 124 A. The vane connection portion 124 A may be provided to connect ends of the first vane 121 Aa and the second vane 121 Ab. According to an embodiment of the disclosure, as an example, the vane connection portion 124 A connects the ends of the first vane 121 Aa and the second vane 121 Ab, but is not limited thereto.

The first vane 121 Aa may be installed to be able to linearly reciprocate in the first direction A of the washing tub 11 A and the second direction B opposite to the first direction A. The second vane 121 Ab may be installed to linearly reciprocate in the first direction A and the second direction B of the washing tub 11 A according to the first vane 121 Aa.

Supporting ribs 127 A spaced with a certain interval may be installed between the first vane 121 Aa and the second vane 121 Ab. The supporting ribs 127 A may be provided to connect the first vane 121 Aa with the second vane 121 Ab. The supporting ribs 127 A may be provided to maintain the interval and to reinforce the intensity while the first vane 121 Aa and the second vane 121 Ab are moving. According to an embodiment of the disclosure, as an example, two supporting ribs may be spaced with a certain interval, but it is not limited thereto. For example, the number of supporting ribs may be variously modified according to a size of a vane unit.

The second deflection unit 120 A may include a motor assembly 400 A provided to move the vane unit 121 A.

As illustrated in FIGS. 6 and 7 , the motor assembly 400 A may be disposed below the injection case 222 A.

The motor assembly 400 A may include a motor 401 A fixed to the rear wall 11 Aa of the washing tub 11 A to generate a driving force, a first gear portion 411 A connected to a motor shaft 402 A of the motor 401 A, and a second gear 131 A coupled with the first gear portion 411 A to transfer the driving force of the motor 401 A to the vane unit 121 A of the second deflection unit 120 A.

The first gear portion 411 A may have a cylindrical shape, and a first gear 411 Aa may be formed on an outer circumferential surface thereof. A motor connection portion 412 A to couple with the motor 401 A fixed to the washing tub 11 A may be formed on a rear end of the first gear portion 411 A.

A motor installation portion 410 A to install the motor 401 A may be provided on the rear wall 11 Aa of the washing tub 11 A.

The motor installation portion 410 A may be located in the rear wall, for example, the middle of the rear wall 11 Aa of the washing tub 11 A and may be located below the second fixed nozzle 221 A. The motor installation portion 410 A may be disposed below the second fixed nozzle 221 A while being spaced therefrom with a certain interval.

Accordingly, the motor connection portion 412 A of the first gear portion 411 A may be coupled with the motor 401 A at the motor installation portion 410 A formed on the rear wall 11 Aa of the washing tub 11 A to transfer the torque of the motor 401 A.

The first gear 411 Aa of the first gear portion 411 A may be coupled with the second gear 131 A to allow the first vane 121 Aa and the second vane 121 Ab to be movable.

The second gear 131 A of the motor assembly 400 A may be formed at the second deflection unit 120 A.

A mobile rail 130 A to receive power from the motor assembly 400 A and to move the first vane 121 Aa and the second vane 121 Ab may be installed at rear ends of the first vane 121 Aa and the second vane 121 Ab. The second gear 131 A may be formed on the mobile rail 130 A. The second gear 131 A may be formed on at least a part of a bottom side of the mobile rail 130 A.

The second deflection unit 120 A may include a rail assembly 300 A to guide the movement of the first vane 121 Aa and the second vane 121 Ab. The rail assembly 300 A may be coupled with a bottom of the injection case 222 A of the second injection unit 220 A.

The rail assembly 300 A may include a rail 310 A and a holder unit 500 A provided to allow the rail 310 A to be installed (see, for example, FIG. 4 ).

The rail 310 A may include an extension rail 311 A connected to the holder unit 500 A and provided to extend a length thereof.

The rail 310 A may extend in the first direction A and the second direction B of the washing tub 11 A. The rail 310 A may movably connect the first vane 121 Aa with the second vane 121 Ab of the second deflection unit 120 A.

The rail 310 A may be provided at each of a front end portion and a rear end portion of the washing tub 11 A. The holder unit 500 A allows the rail 310 A to be connected, for example, with a bottom side of the second dish basket 22 A. The holder unit 500 A may include a holder frame 530 A that connects the rail 310 A located at the front end portion with the rail 310 A located at the rear end portion, a front holder 510 A located at a front end of the holder frame 530 A, and a rear holder 520 A located at a rear end of the holder frame 530 A.

The front holder 510 A and the rear holder 520 A may extend upward from the both ends of the holder frame 530 A. Coupling grooves 511 A and 521 A to couple with the second dish basket 22 A may be formed on top ends of the front holder 510 A and the rear holder 520 A, respectively.

Accordingly, the front holder 510 A of the holder unit 500 A may be connected with a front end of the second dish basket 22 A through the coupling groove 511 A and the rear holder 520 A may be connected to a rear end of the second dish basket 22 A through the coupling groove 521 A.

The injection case 222 A may include a gear bracket 420 A provided therebelow and a gear bracket cover 421 A provided to be coupled with the gear bracket 420 A. In the embodiment of the disclosure, as an example, the gear bracket 420 A is integrated with the injection case 222 A but is not limited thereto. For example, the gear bracket 420 A may be separately installed below the injection case 222 A.

The gear bracket 420 A may be provided to allow the first gear portion 411 A of the motor assembly 400 A to be installed. The gear bracket 420 A may include a first gear accommodating groove 424 A to rotatably accommodate the first gear portion 411 A.

The gear bracket 420 A and the gear bracket cover 421 A may be coupled with a fixed groove 425 A and a fixed protrusion 426 A. According to an exemplary embodiment, as an example, a fixed groove may be formed at a gear bracket and a fixed protrusion may be formed at a gear bracket cover but is not limited thereto. For example, a gear bracket and a gear bracket cover may be assembled using a fixing member such as a bolt, a hook, etc.

The gear bracket cover 421 A includes a rotation supporting portion 427 A formed to allow the first gear portion 411 A to be rotatable.

A rail installation portion 423 A to allow the rail 310 A to be installed may be formed at the gear bracket 420 A (see, for example, FIG. 7 ).

The vane unit 121 A of the second deflection unit 120 A may be assembled with the rail 310 A installed at the rail installation portion 423 A to slidably move.

The rail 310 A of the rail assembly 300 A may be installed at the injection case 222 A of the second injection unit 220 A and the second deflection unit 120 A may be installed below the second dish basket 22 A due to the holder unit 500 A of the rail assembly 300 A.

The fixed nozzle connection portion 224 A of the injection case 222 A corresponds to the second fixed nozzle 221 A, and the gear bracket 420 A provided below the injection case 222 A and the motor connection portion 412 A correspond to the motor 401 A installed at the motor installation portion 410 A of the washing tub 11 A.

An exemplary injection flow channel 700 A of the second injection unit 220 A is illustrated in FIG. 8 .

The injection flow channel 700 A of the second injection unit 220 A may be formed inside the injection body 240 A connected to the injection case 222 A.

A first injection flow channel 710 A and a second injection flow channel 720 A may be provided inside the injection body 240 A. The first injection flow channel 710 A may be provided to allow the washing water supplied to the injection flow channel 700 A to be injected through the first nozzle 231 A. The second injection flow channel 720 A may be provided to allow the washing water supplied to the injection flow channel 700 A to be injected through the second nozzle 232 A.

The first injection flow channel 710 A and the second injection flow channel 720 A may be divided by a partition 730 A.

The partition 730 A that extends frontward and rearward in the washing tub 11 A may be provided inside the injection body 240 A.

Accordingly, based on the partition 730 A, the first injection flow channel 710 A may be formed on the side of the first nozzle 231 A and the second injection flow channel 720 A may be formed on the side of the second nozzle 232 A.

The flow channel switching unit 600 A may be provided to allow the washing water to be supplied through one of the first injection flow channel 710 A and the second injection flow channel 720 A of the injection flow channel 700 A.

The flow channel switching unit 600 A may be disposed at a rear end of the injection body 240 A, that is, at a rear end of the partition 730 A. The flow channel switching unit 600 A may include the flow channel switching member 610 A and the flow channel switching holder 620 A.

The flow channel switching member 610 A may be rotatably installed to open and close the injection flow channel 700 A. The flow channel switching rotation shaft 612 A may be provided on the one end of the flow channel switching member 610 A, and the flow channel switching movement shaft 613 A may be provided on the other end thereof.

The flow channel switching rotation shaft 612 A of the flow channel switching member 610 A may be rotatably supported by the rotation shaft fixing groove 243 A of the injection body 240 A.

The rotation shaft fixing groove 243 A of the flow channel switching member 610 A may be located at an end of the partition 730 A.

Accordingly, the flow channel switching member 610 A may be provided to allow the flow channel switching movement shaft 613 A to open and close one of the first injection flow channel 710 A and the second injection flow channel 720 A while rotating on the flow channel switching rotation shaft 612 A.

The flow channel switching movement shaft 613 A of the flow channel switching member 610 A may be fixed to the flow channel switching holder 620 A. The flow channel switching holder 620 A may include the first pressurized portion 621 A formed to protrude toward the first direction A based on the movement slit 623 A in the center and the second pressurized portion 622 A formed to protrude toward the second direction B.

The flow channel switching movement shaft 613 A may slidably move in one of the first direction A and the second direction B, for example, due to the first pressurized portion 621 A and the second pressurized portion 622 A. Due to the movement of the flow channel switching movement shaft 613 A, for example, the flow channel switching member 610 A may rotate on the flow channel switching rotation shaft 612 A.

The first pressurized portion 621 A and the second pressurized portion 622 A of the flow channel switching holder 620 A may be pressurized by the movement of the first vane 121 Aa and the second vane 121 Ab to move.

For example, when the first pressurized portion 621 A of the flow channel switching holder 620 A is pressurized in the second direction B, the flow channel switching movement shaft 613 A may be rotated in the second direction B on the flow channel switching rotation shaft 612 A, thereby moving the flow channel switching member 610 A. When the second pressurized portion 622 A is pressurized in the first direction A, the flow channel switching movement shaft 613 A may be rotated in the first direction A on the flow channel switching rotation shaft 612 A, thereby moving the flow channel switching member 610 A.

A sensor unit 800 A may be provided between the first vane 121 Aa and the second vane 121 Ab. The sensor unit 800 A may be provided to sense positions of the first vane 121 Aa and the second vane 121 Ab.

The first vane 121 Aa and the second vane 121 Ab, as illustrated in FIG. 9 , are provided to be moved by the motor assembly 400 A.

The second deflection unit 120 A provided below the second dish basket 22 A may receive power of the motor 401 A due to the motor assembly 400 A to move.

When the motor 401 A installed on the rear wall 11 Aa of the washing tub 11 A rotates, the first gear portion 411 A connected by the motor connection portion 412 A may rotate and the first gear 411 Aa may rotate due the rotation of the first gear portion 411 A.

The second gear 131 A engaged and connected with the first gear 411 Aa may move along the rail 310 A in the first direction A and the second direction B due to the rotation of the first gear 411 Aa. The second gear 131 A may be formed on a bottom of the rail 310 A that connects the first vane 121 Aa with the second vane 121 Ab.

The first vane 121 Aa and the second vane 121 Ab may be movably connected to the rail 310 A through a rail coupling portion 132 A.

Due to the movement of the second gear 131 A, the first vane 121 Aa and the second vane 121 Ab may reciprocate in the first direction A and the second direction B of the washing tub 11 A.

The movement of the first vane 121 Aa and the second vane 121 Ab may be controlled through the sensing, by the sensor unit 800 A, of the positions thereof.

A portion 8 A of FIG. 8 within the broken line in FIGS. 10 to 13 illustrates a flow channel switching operation performed by the flow channel switching unit 600 A according to the first embodiment of the and described as follows.

When the washing water is supplied through the second fixed nozzle 221 A, the washing water may be supplied into the injection case 222 A and the injection body 240 A.

The washing water supplied into the injection body 240 A may flow into the second injection flow channel 720 A of the injection flow channel 700 A in an open state due to the flow channel switching member 610 A of the flow channel switching unit 600 A and may be injected through the second nozzle 232 A.

The washing water injected through the second nozzle 232 A may deflect due to the second deflection surface 123 A of the second vane 121 Ab and may be injected toward the dishes in the second dish basket 22 A.

The second vane 121 Ab allows the washing water injected through the second nozzle 232 A to deflect toward the dishes while moving along the rail 310 A in the second direction B due to the motor assembly 400 A.

When the second vane 121 Ab moves in the second direction B, the first vane 121 Aa that interworks with the second vane 121 Ab moves in the second direction B (see, for example, FIG. 11 ).

The first vane 121 Aa pressurizes the pressurized portion 621 A of the flow channel switching holder 620 A while moving in the second direction B close to the first nozzle 231 A.

The first pressurized portion 621 A is pressurized and moves in the second direction B, and the flow channel switching movement shaft 613 A of the flow channel switching holder 620 A moves in the second direction B based on the flow channel switching rotation shaft 612 A.

The flow channel switching member 610 A may block the second injection flow channel 720 A and may open the first injection flow channel 710 A.

The washing water flows into the open first injection flow channel 710 A and may be injected through the first nozzle 231 A.

The washing water injected through the first nozzle 231 A deflects due to the first deflection surface 122 A of the first vane 121 Aa and may be injected toward the dishes in the second dish basket 22 A there above.

The first vane 121 Aa allows the washing water injected through the first nozzle 231 A to deflect toward the dishes while moving along the rail 310 A in the first direction A due to the motor assembly 400 A.

The positions of the first vane 121 Aa and the second vane 121 Ab may be sensed by the sensor unit 800 A and the driving force of the motor 401 A may be controlled, thereby controlling the movement of the first vane 121 Aa and the second vane 121 Ab.

The sensor unit 800 A may include a first sensor portion 810 A provided at the first vane 121 Aa and a second sensor portion 820 A provided at the second vane 121 Ab.

The first sensor portion 810 A may be provided to sense the position of the first vane 121 Aa, and the second sensor portion 820 A may be provided to sense the position of the second vane 121 Ab.

Accordingly, a moving direction of the first vane 121 Aa and the second vane 121 Ab may be switched by the sensor unit 800 A, which may be continuously performed through reciprocation between the first direction A and the second direction B.

According to an embodiment of the disclosure, as an example, the second deflection unit 120 A including the first vane 121 Aa and the second vane 121 ab is installed at the second dish basket 22 A, but is not limited thereto. For example, the first vane 121 Aa and the second vane 121 Ab of the second injection unit 220 A may be applied to the first dish basket 21 A located on a bottom of the dish washing machine 1 A.

FIG. 14 is an exploded perspective view of a deflection unit 120 B according to a second embodiment of the disclosure. FIG. 15 is a perspective view of a rotating vane unit 121 B of the deflection unit 120 B according to the second embodiment of the disclosure. FIG. 16 is a view illustrating the movement of the rotating vane unit 121 B of the deflection unit 120 B according to the second embodiment of the disclosure. FIGS. 17 to 19 are views illustrating rotating operations of rotating vanes 121 Ba and 121 Bb of the rotating vane unit 121 B according to the second embodiment of the disclosure. Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 12 . Also, descriptions that are the same as those with reference to FIGS. 1 to 12 may be omitted.

As illustrated in FIGS. 14 to 19 , the second deflection unit 120 B according to the second embodiment of the disclosure may be provided to be rotatable at a certain angle to switch a moving direction of the washing water.

The second injection unit 220 A includes the injection case 222 A and the injection body 240 A connected to the injection case 222 A and including the injection flow channel 700 A therein and the injection nozzle 230 A to inject the washing water provided on both sides thereof. The injection nozzle 230 A may be formed in a plurality thereof on the left and right of the injection body 240 A. The injection nozzle 230 A may include the first nozzle 231 A and the second nozzle 232 A.

The injection flow channel 700 A may be formed inside the injection body 240 A. The second injection unit 220 A may include the flow channel switching unit 600 A to inject the washing water through at least one of the first nozzle 231 A and the second nozzle 232 A.

Since a detailed configuration of the flow channel switching unit 600 A is similar to the first embodiment, a detailed description thereof will be omitted.

The second deflection unit 120 B may be provided to be rotatable at a certain angle to switch the moving direction of the injected washing water.

The washing water injected toward the first direction A and the second direction B of the washing tub 11 A through the second injection unit 220 A may deflect toward the dishes on top through the second deflection unit 120 B installed below the second dish basket 22 A.

The second deflection unit 120 B includes the rotating vane unit 121 B provided to linearly reciprocate and to be rotatable in a direction in which the washing water is injected.

The rotating vane unit 121 B may include a first rotating vane 121 Ba disposed to allow the washing water injected through the first nozzle 231 A of the injection nozzle 230 A to deflect and a second rotating vane 121 Bb disposed to allow the washing water injected through the second nozzle 232 A to deflect.

The first rotating vane 121 Ba and the second rotating vane 121 Bb may be interconnected to interwork with each other. The first rotating vane 121 Ba and the second rotating vane 121 Bb may be connected by a vane connection portion 124 B. The first rotating vane 121 Ba and the second rotating vane 121 Bb may be spaced at a certain interval due to the vane connection portion 124 B. The vane connection portion 124 B may be provided to connect front ends of the first rotating vane 121 Aa and the second rotating vane 121 Ab.

The first rotating vane 121 Ba and the second rotating vane 121 Bb may include a moving rail 130 B connect rear ends thereof. The moving rail 130 B may be provided to have a length corresponding to the vane connection portion 124 B to connect the first rotating vane 121 Ba and the second rotating vane 121 Bb.

A second gear 131 B corresponding to the first gear 411 Aa of the motor assembly 400 A may be formed on a bottom of the moving rail 130 B.

Reinforcing ribs 127 B may be provided between the vane connection portion 124 B and the moving rail 130 B. The reinforcing ribs 127 B may be provided to connect the vane connection portion 124 B with the moving rail 130 B with a certain interval to reinforce the strength of the first rotating vane 121 Ba and the second rotating vane 121 Bb.

Vane holders 132 B to movably connect the rotating vane unit 121 B with the rail assembly 300 A may be provided at corners of the vane connection portion 124 B and the moving rail 130 B.

The vane holders 132 B may be at a connection portion between the vane connection portion 124 B and the first rotating vane 121 Ba, a connection portion between the vane connection portion 124 B and the second rotating vane 121 Bb, a connection portion between the moving rail 130 B and the first rotating vane 121 Ba, and a connection portion between the moving rail 130 B and the second rotating vane 121 Bb, respectively.

The vane holders 132 B may include rail coupling holes to allow the rail 310 A of the rail assembly 300 A to penetrate and to move and rotating protrusions 133 B to allow the first and second rotating vanes 121 Ba and 121 Bb to be rotatably installed.

The rail coupling holes 134 B may be formed on the left and right of the vane holder 132 B to allow the vane holder 132 B to be movable along the rail 310 A in the first direction A and the second direction B.

The rotating protrusions 133 B may be disposed on inner surfaces of the vane holders 132 B to rotatably connect the first rotating vane 121 Ba with the second rotating vane 121 Bb.

One end of each of the first rotating vane 121 Ba and the second rotating vane 121 Bb in a longitudinal direction may be adjacent to the front side of the washing tub 11 A and the other ends thereof may be formed adjacently to the rear side of the washing tub 11 A.

Rotating protrusion coupling grooves 122 Ba and 122 Bb coupled with the rotating protrusions 133 B of the vane holders 132 B may be formed on both ends of the first rotating vane 121 Ba and the second rotating vane 121 Bb.

Accordingly, the first rotating vane 121 Ba and the second rotating vane 121 Bb may be rotatable through coupling between the rotating protrusion coupling grooves 122 Ba and 122 Bb at both ends thereof and the rotating protrusions 133 B of the vane holders 132 B.

The first rotating vane 121 Ba and the second rotating vane 121 Bb may be disposed in parallel. The first rotating vane 121 Ba and the second rotating vane 121 Bb may be interconnected to interwork with each other.

The first rotating vane 121 Ba and the second rotating vane 121 Bb may include rotating deflection surfaces 128 B to allow the washing water injected from the second injection unit 220 A to deflect.

The first rotating vane 121 Ba and the second rotating vane 121 Bb may include rotating deflection surfaces 128 B to allow the washing water injected through the first nozzle 231 A and the second nozzle 232 A to deflect, respectively. The first rotating vane 121 Ba may include a first rotating deflection surface 128 Ba, and the second rotating vane 121 Bb may include a second rotating deflection surface 128 Bb.

The first rotating vane 121 Ba may be installed to be able to linearly reciprocate along the first direction A of the washing tub 11 A and the second direction B opposite to the first direction A. The second rotating vane 121 Bb may be provided to interwork according to the first rotating vane 121 Ba.

The first rotating vane 121 Ba and the second rotating vane 121 Bb reciprocate along the rail 310 A of the rail assembly 300 A in the first direction A and the second direction B.

The first rotating vane 121 Ba and the second rotating vane 121 Bb rotate near the injection nozzles 230 A in the center of the washing tub 11 A. The first rotating vane 121 Ba and the second rotating vane 121 Bb may rotate to allow the washing water injected from the center to deflect to be injected toward the center portion of the washing tub 11 A.

According to an embodiment of the disclosure, as an example, rotation positions of the first rotating vane 121 Ba and the second rotating vane 121 Bb are in the center of the rail assembly 300 A, but it is not limited thereto. However, for convenience of description, it may be assumed that a rotating vane rotates in the center.

The first rotating vane 121 Ba and the second rotating vane 121 Bb each may include a rotation guide hole 125 B for guiding rotation in the center thereof. The first rotating vane 121 Ba may include a first rotation guide hole 125 Ba, and the second rotating vane 121 Bb may include a second rotation guide hole 125 Bb.

Rotation guides 270 B may be formed on both sides of the injection body 240 A. The rotation guides 270 B protrude from left and right sides of the injection body 240 A, respectively. The rotation guide 270 B may be formed to be longer than the first nozzle 231 A and the second nozzle 232 A of the injection body 240 A.

The rotation guide 270 B may include a rotation guide surface 271 B whose top surface of an outer cross section is formed with a downward curvature.

Accordingly, the rotation guides 270 B may be inserted into the first rotation guide hole 125 Ba of the first rotating vane 121 Ba and the second rotation guide hole 125 Bb of the second rotating vane 121 Bb and pressurize the first rotating vane 121 Ba and the second rotating vane 121 Bb in an opposite direction of the movement thereof, thereby rotating the first rotating vane 121 Ba and the second rotating vane 121 Bb.

However, as illustrated in FIG. 16 , the first rotating vane 121 Ba and the second rotating vane 121 Bb may reciprocate along the rail 310 A due to the motor assembly 400 A.

Since the detailed description of the flow channel switching unit 400 A is similar to the first embodiment, it will be omitted.

The driving force of the motor 401 A may be transferred to the first gear 411 Aa of the first gear portion 411 A and the rotation of the first gear 411 Aa moves the second gear 131 B engaged with the first gear 411 Aa.

The second gear 131 B may move along the rail 310 A in the first direction A and the second direction B due to the rotation of the first gear 411 Aa. The first rotating vane 121 Ba and the second rotating vane 121 Bb connected to the moving rail 130 B formed with the second gear 131 B also move in the first direction A and the second direction B.

The movement of the first rotating vane 121 Ba and the second rotating vane 121 Bb may be sensed and controlled by a sensor unit 800 B. The sensor unit 800 B may be installed inside the holder frame 530 A to sense moving positions of the first rotating vane 121 Ba and the second rotating vane 121 Bb.

FIGS. 17 to 19 illustrate a rotating operation of the rotating vane unit 121 B according to the second embodiment of the disclosure.

When the first gear 411 Aa rotates due to the rotation of the motor 401 A, the second gear moves in the first direction A while being engaged with the first gear 411 Aa. The washing water may be supplied to the second injection flow channel 720 A inside the injection body 240 A and may be injected through the second nozzle 232 A.

The second rotating vane 121 Bb moves from a first position P 1 at a first angle θ 1 . The first position P 1 is a position in which the second rotating vane 121 Bb moves without rotation. The first angle θ 1 is an angle at which the second rotating vane 121 Bb does not rotate. The first angle θ 1 at which the second rotating vane 121 Bb does not rotate may include an angle approximately perpendicular to the washing water to allow the washing water injected from the second nozzle 232 A to deflect upward.

When the second rotating vane 121 Bb moves, e.g., further moves toward the second nozzle 232 A and moves to a second position P 2 , the rotation guide 270 B may be inserted into the rotation guide hole 125 B of the second rotating vane 121 Bb. The rotation guide surface 271 B of the rotation guide 270 B is in contact with a rotation contact surface 129 B formed on a bottom end of a rear side of the second rotating vane 121 Bb and rotates the second rotating vane 121 Bb.

The second rotating vane 121 Bb rotates on the rotation protrusion 133 B and forms a second angle θ 2 . The second angle θ 2 may be formed to allow the washing water injected from the second nozzle 232 A to deflect toward the center of the washing tub 11 .

When the second rotating vane 121 Bb moves in the second direction B of the washing tub 11 A and moves from the second position P 2 to the first position P 1 , the second rotating vane 121 Bb rotates from the second angle θ 2 at which the washing water deflects toward the center of the washing tub 11 A to have the first angle θ 1 at which the washing water deflects toward the top of the washing tub 11 A.

As illustrated in FIG. 19 , an operation of the first rotating vane 121 Ba is similar to the movement and rotation operations of the second rotating vane 121 Bb. A detailed description thereof will be omitted.

The washing water may be supplied to the first injection flow channel 710 A inside the injection body 240 A and may be injected through the first nozzle 231 A.

FIG. 20 is an exploded perspective view of an injection unit including a flow channel switching unit 600 C installed therein according to a third embodiment of the disclosure. FIG. 21 is an exploded perspective view of the flow channel switching unit 600 C according to the third embodiment of the disclosure. FIG. 22 is a view illustrating the injection unit and the flow channel switching unit 600 C according to the third embodiment of the disclosure. A portion 22 B of FIG. 22 within the broken line is illustrated in FIGS. 23 and 24 illustrating an exemplary operation of the flow channel switching unit 600 C according to the third embodiment of the disclosure. Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 19 . Also, descriptions that are the same as those with reference to FIGS. 1 to 19 may be omitted.

As illustrated in FIGS. 20 to 22 , the flow channel switching unit 600 C according to the third embodiment of the disclosure may be disposed between the injection case connection portion 241 A of the injection body 240 A and the injection body connection portion 223 A of the injection case 222 A.

The flow channel switching unit 600 C may include a flow channel switching member 610 C, a flow channel switching holder 620 C, and a sealing member 630 C.

The flow channel switching member 610 C may be rotatably installed to open and close the injection flow channel 700 A. The flow channel switching member 610 C may include a flow channel switching panel 611 C having a fan shape.

The outside of the flow channel switching panel 611 C may be formed of a sealing material, for example, including rubber to fully seal the injection flow channel 700 A.

The flow channel switching panel 611 C may be provided in front of member 610 C, and a flow channel switching rotation shaft 612 C to rotate the flow channel switching panel 611 C may be provided in the rear thereof.

The flow channel switching rotation shaft 612 C may be rotatably supported by the rotation shaft fixing groove 243 A of the injection body 240 A. The rotation shaft fixing groove 243 A may be formed on an end of the partition 730 A for dividing the injection flow channel 700 A into the first injection flow channel 710 A and the second injection flow channel 720 A.

The holder installation portion 242 A to allow a flow channel switching holder 620 C to be installed therein may be formed in the injection case connection portion 241 A of the injection body 240 A. The holder installation portion 242 A may be split and formed on each of the left and right of the injection body 240 A.

A sealing member 630 A to seal, for example for fully sealing the injection flow channel 700 A may be provided between the injection body 240 A and the injection case 222 A, the.

A flow channel switching movement shaft 613 C may be formed in the center of the flow channel switching holder 620 C. The flow channel switching holder 620 C may include a first pressurized portion 621 C formed to protrude toward the first direction A based on a movement slit 623 C in the center and a second pressurized portion 622 C formed to protrude toward the second direction B.

The flow channel switching movement shaft 613 C may slidably move in the first direction A or the second direction B due to the first pressurized portion 621 C and the second pressurized portion 622 C. Due to the movement of the flow channel switching movement shaft 613 C, the flow channel switching member 610 C may be rotated about the flow channel switching rotation shaft 612 C.

For example, when the first pressurized portion 621 C of the flow channel switching holder 620 C is pressurized in the second direction B, the flow channel switching panel 611 C of the flow channel switching member 610 C moves to close the second injection flow channel 720 A while the flow channel switching movement shaft 613 C rotates about the flow channel switching rotation shaft 612 C in the second direction B. When the second pressurized portion 622 C is pressurized in the first direction A, the flow channel switching panel 611 C of the flow channel switching member 610 C moves to close the first injection flow channel 710 A while the flow channel switching movement shaft 613 C rotates about the flow channel switching rotation shaft 612 C in the first direction A.

FIGS. 23 and 24 illustrate a flow channel switching operation performed by the flow channel switching unit 600 C according to the third embodiment as follows.

When the washing water is supplied through the second fixed nozzle 221 A, the washing water may be supplied into the injection case 222 A and the injection body 240 A.

The washing water supplied into the injection body 240 A flows into the first injection flow channel 710 A of the injection flow channel 700 A in an open state due to the flow channel switching member 610 C of the flow channel switching unit 600 C and may be injected through the first nozzle 231 A.

The washing water injected through the first nozzle 231 A deflects due to the first deflection surface 122 A of the first vane 121 Aa and may be injected toward the dishes in the second dish basket 22 A thereabove.

The first vane 121 Aa deflects the washing water injected through the second nozzle 232 A toward the dishes while moving along the rail 310 A in the second direction B due to the motor assembly 400 A.

When the first vane 121 Aa moves close to the first nozzle 231 A, the sensor unit 800 C may be in contact with the first pressurized portion 621 C of the flow channel switching holder 620 C. The sensor unit 800 C switches a moving direction of the first vane 121 Aa by controlling the motor assembly 400 A.

When the moving direction of the first vane 121 Aa is switched and the first vane 121 Aa moves in the first direction A, the second vane 121 Ab may also move in the first direction A.

The first pressurized portion 621 A may be pressurized and move in the first direction A, and the flow channel switching movement shaft 613 C of the flow channel switching holder 620 C may move in the first direction A based on the flow channel switching rotation shaft 612 C.

The flow channel switching member 610 C may block the second injection flow channel 720 A and may open the first injection flow channel 710 A.

The washing water flows into the open first injection flow channel 710 A and may be injected through the first nozzle 231 A.

The washing water injected through the first nozzle 231 A deflects due to the first deflection surface 122 A of the first vane 121 Aa and may be injected toward the dishes in the second dish basket 22 A thereabove.

The first vane 121 Aa deflects the washing water injected through the first nozzle 231 A toward the dishes while moving along the rail 310 A in the first direction A due to the motor assembly 400 A.

The positions of the first vane 121 Aa and the second vane 121 Ab may be sensed by a sensor unit 800 C and the driving force of the motor 401 A is controlled, thereby controlling the movement of the first vane 121 Aa and the second vane 121 Ab.

Accordingly, moving directions of the first vane 121 Aa and the second vane 121 Ab are switched by the sensor unit 800 C, and the process may be continuously performed through reciprocation between the first direction A and the second direction B.

FIG. 25 is a view illustrating the injection unit 220 A and a flow channel switching unit 600 D according to the fourth embodiment of the disclosure. FIG. 26 is an exploded perspective view of the flow channel switching unit 600 D according to the fourth embodiment of the disclosure. FIGS. 27 to 29 are views illustrating an operation of the flow channel switching unit 600 D according to the fourth embodiment of the disclosure. A portion 27 C of FIG. 27 within the broken line is illustrated in FIGS. 28 and 29 . Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 24 . Also, descriptions that are the same as those with reference to FIGS. 1 to 24 may be omitted.

As illustrated in FIGS. 25 to 29 , the flow channel switching unit 600 D according to the fourth embodiment of the disclosure may include a flow channel switching motor 700 D.

The flow channel switching unit 600 D may be disposed between the injection case connection portion 241 A of the injection body 240 A and the injection body connection portion 223 A of the injection case 222 A.

The flow channel switching unit 600 D may include a flow channel switching member 610 D, a sealing member 630 D, and the flow channel switching motor 700 D provided to drive the flow channel switching member 610 D.

The flow channel switching member 610 D may be rotatably installed to open and close the injection flow channel 700 A. The flow channel switching member 610 D may include a flow channel switching panel 611 D having a panel shape.

The outside of the flow channel switching panel 611 D may be formed of a sealing material, for example, including rubber to fully seal the injection flow channel 700 A.

A flow channel switching rotation shaft 612 D serving as a center of rotation of the flow channel switching panel 611 D may be provided at one end of the flow channel switching panel 611 D.

The flow channel switching rotation shaft 612 D may be rotatably supported by a rotation shaft fixing groove 243 D of the injection body 240 A. The rotation shaft fixing groove 243 D may be formed on the end of the partition 730 A for dividing the injection flow channel 700 A into the first injection flow channel 710 A and the second injection flow channel 720 A.

The sealing member 630 D of the flow channel switching unit 600 D may be provided between the injection body 240 A and the injection case 222 A, thereby fully sealing the injection flow 700 A.

The flow channel switching panel 611 D may be provided to be rotatable on the flow channel switching rotation shaft 612 D. The flow channel switching motor 700 D provided to rotate the flow channel switching panel 611 D may be installed at a flow channel switching motor installation portion 425 D of the gear bracket cover 421 A.

The flow channel switching motor 700 D installed in the flow channel switching motor installation portion 425 D is provided to enable a motor shaft 711 D to be rotatably installed in the rotation shaft fixing hole 243 D of the injection body 240 A.

The motor shaft 711 D of the flow channel switching motor 700 D may be connected to the flow channel switching shaft 612 D of the flow channel switching panel 611 D and may transfer the torque of the flow channel switching motor 700 D to the flow channel switching panel 611 D.

FIGS. 27 to 29 illustrate a flow channel switching operation performed by the flow channel switching unit 600 D according to the fourth embodiment of the disclosure as follows.

When the washing water is supplied through the second fixed nozzle 221 A, the washing water may be supplied into the injection case 222 A and the injection body 240 A.

The washing water supplied into the injection body 240 A flows into the first injection flow channel 710 A of the injection flow channel 700 A in an open state due to the flow channel switching member 610 D of the flow channel switching unit 600 D and is injected through the first nozzle 231 A.

The flow channel switching panel 611 D may block the second injection flow channel 720 A

The washing water injected through the first nozzle 231 A deflects due to the first deflection surface 122 A of the first vane 121 Aa and may be injected toward the dishes in the second dish basket 22 A thereabove.

The first vane 121 Aa deflects the washing water injected through the second nozzle 232 A toward the dishes while moving along the rail 310 A in the second direction B due to the motor assembly 400 A.

The first vane 121 Aa may move close to the first nozzle 231 A and in contact with a sensor unit 800 D.

The sensor unit 800 D may switch moving directions of the first vane 121 Aa and the second vane 121 Ab by controlling the motor assembly 400 A.

The sensor unit 800 D rotates the flow channel switching panel 611 D by driving the flow channel switching motor 700 D of the flow channel switching unit 600 D.

Due to the rotation of the flow channel switching panel 611 D, the second injection flow channel 720 A may open and the first injection flow channel 710 A may close.

The washing water flows into the open second injection flow channel 720 A and may be injected through the second nozzle 232 A.

The washing water injected through the second nozzle 232 A deflects due to the second deflection surface 123 A of the second vane 121 Ab and may be injected toward the dishes in the second dish basket 22 A.

Accordingly, the sensor unit 800 D may control the moving directions of the first vane 121 Aa and the second vane 121 Ab and the direction switching of the injection flow channel 700 A. In the first vane 121 Aa and the second vane 121 Ab, the process may be continuously performed through reciprocating in the first direction A and the second direction B.

FIG. 30 is a view illustrating the injection unit 220 A and a deflection unit 120 E according to a fifth embodiment of the disclosure. FIG. 31 is a view illustrating the injection unit 220 A and a flow channel switching unit 600 E according to the fifth embodiment of the disclosure. FIG. 32 is an exploded perspective view of the flow channel switching unit 600 E according to the fifth embodiment of the disclosure. FIG. 33 is a schematic diagram illustrating the movement of a vane unit 121 E according to the injection flow channel 700 A according to the fifth embodiment of the disclosure. FIGS. 34 to 37 are views illustrating the movement of the vane unit 121 E caused by injection of the washing water performed by the flow channel switching unit 600 E according to the fifth embodiment of the disclosure. FIG. 36 illustrates portion 35 E within the broken line of FIG. 35 . Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 29 . Also, descriptions that are the same as those with reference to FIGS. 1 to 29 may be omitted.

As illustrated in FIGS. 30 to 37 , the deflection unit 120 E according to the fifth embodiment of the disclosure may be provided to be moved by an injection force of the washing water injected by the injection unit 200 A.

The deflection unit 120 E may deflect the washing water injected through the second injection unit 220 A in the first direction A and the second direction B of the washing tub 11 A toward the dishes thereabove.

The deflection unit 120 E includes the vane unit 121 E to reciprocate in a direction in which the washing water is injected. The vane unit 121 E may include a first vane 121 Ea to deflect the washing water injected through the first nozzle 231 A of the injection nozzle 230 A and a second vane 121 Eb to deflect the washing water injected through the second nozzle 232 A.

The first vane 121 Ea and the second vane 121 Eb may be interconnected to interwork with each other. The first vane 121 Ea and the second vane 121 Eb may include deflection surfaces 122 E and 123 E to deflect the washing water injected through the first nozzle 231 A and the second nozzle 232 A, respectively. The first vane 121 Ea may include a first deflection surface 122 E, and the second vane 121 Ab may include a second deflection surface 123 E.

The second deflection unit 120 A may include a rail assembly 300 E for guiding the movement of the first vane 121 Ea and the second vane 121 Eb. The rail assembly 300 E may be coupled with the bottom of the injection case 222 A of the second injection unit 220 A.

The rail assembly 300 E may include a rail 310 E and the holder unit 500 A provided such that the rail 310 E is installed. The rail 310 E may include an extension rail 311 E connected to the holder unit 500 A and provided to extend a length thereof.

The rail 310 E extends in the first direction A and the second direction B of the washing tub 11 A. The rail 310 E movably connects the first vane 121 Ea with the second vane 121 Eb of the second deflection unit 120 A.

The first vane 121 Ea and the second vane 121 Eb movably coupled with the rail assembly 300 E may be moved by the water pressure of the washing water injected through one of the first injection flow channel 710 A and the second injection flow channel 720 A switched by the flow channel switching unit 600 E.

The flow channel switching unit 600 E may include a flow channel switching member 610 E, a sealing member 630 E, and a flow channel switching motor 700 E provided to drive the flow channel switching member 610 E.

The flow channel switching member 610 E may be rotatably installed to open and close the injection flow channel 700 A. The flow channel switching member 610 E may include a flow channel switching panel 611 E having a panel shape.

A flow channel switching rotation shaft 612 E serving as a center of rotation of the flow channel switching panel 611 E may be provided at one end of the flow channel switching panel 611 E. The flow channel switching rotation shaft 612 E may be rotatably supported by a rotation shaft fixing groove 243 E of the injection body 240 A. The rotation shaft fixing groove 243 E may be formed on the end of the partition 730 A for dividing the injection flow channel 700 A into the first injection flow channel 710 A and the second injection flow channel 720 A.

The sealing member 630 E of the flow channel switching unit 600 E may be provided between the injection body 240 A and the injection case 222 A, thereby fully sealing the injection flow 700 A.

The flow channel switching panel 611 E may be provided to be rotatable on the flow channel switching rotation shaft 612 E. The motor shaft 711 E of the flow channel switching motor 700 E may be connected to the flow channel switching shaft 612 E of the flow channel switching panel 611 E and may transfer the torque of the flow channel switching motor 700 E to the flow channel switching panel 611 E.

As illustrated in FIGS. 33 to 37 , a flow channel switching operation performed by the flow channel switching unit 600 E according to the fifth embodiment of the disclosure is as follows.

When the washing water is supplied through the second fixed nozzle 221 A, the washing water is supplied into the injection case 222 A and the injection body 240 A. The washing water supplied into the injection body 240 A flows into the second injection flow channel 720 A of the injection flow channel 700 A in an open state due to the flow channel switching unit 600 E and is injected through the second nozzle 232 A.

The flow channel switching panel 611 E may block the first injection flow channel 710 A.

The washing water injected through the second nozzle 232 A deflects due to the second deflection surface 123 E of the second vane 121 Eb to be injected toward the dishes thereabove.

The second vane 121 Ea moves along the rail 310 E in the second direction B due to the water pressure of the washing water injected through the second nozzle 232 A. The second vane 121 Eb becomes farther from the second nozzle 232 A from a distance L 1 to a distance L 2 . The first vane 121 Ea becomes closer to the first nozzle 231 A from a distance L′ 1 to a distance L′ 2 (see, for example, FIGS. 34 and 35 ).

When the first vane 121 Ea becomes closer to the first nozzle 231 A and is in contact with the sensor unit 800 E, the sensor unit 800 E may rotate the flow channel switching panel 611 E by driving the flow channel switching motor 700 E of the flow channel switching unit 600 E.

Due to the rotation of the flow channel switching panel 611 E, the second injection flow channel 720 A may be closed and the first injection flow channel 710 A may be opened.

The washing water flows into the open first injection flow channel 710 A and may be injected through the first nozzle 231 A. The washing water injected through the first nozzle 231 A pressurizes the first deflection surface 122 E of the first vane 121 Ea, and the first vane 121 Ea moves in the first direction A due to the water pressure of the washing water.

FIG. 38 is a view illustrating an injection unit 220 F and the deflection unit 120 A according to a sixth embodiment of the disclosure. FIG. 39 is an exploded perspective view illustrating the injection unit 220 F and the deflection unit 120 A according to the sixth embodiment of the disclosure. FIG. 40 is a schematic diagram of a connection portion of an injection body 240 F and an injection case 222 F according to the sixth embodiment of the disclosure. FIG. 41 is a schematic diagram of the vane unit 121 A moved by the motor assembly 401 according to the sixth embodiment of the disclosure. FIGS. 42 to 45 are views illustrating the deflection of the washing water according to the movement of the vane unit 121 A according to the sixth embodiment of the disclosure. FIG. 44 illustrates portion 43 E within the broken line of FIG. 43 . Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 37 . Also, descriptions that are the same as those with reference to FIGS. 1 to 37 may be omitted.

As illustrated in FIGS. 38 to 45 , the deflection unit 120 A according to the sixth embodiment includes the vane unit 121 A provided to be capable of being moved by the motor assembly 400 A.

The washing water injected through the injection unit 220 F may be controlled by the vane unit 121 A that is moved left and right by the motor assembly 400 A.

The injection unit 220 F may include the injection case 222 F, the injection body 240 F, and injection nozzles 230 F formed on the left and right of the injection body 240 F.

A fixed nozzle connection portion 224 F to connect the second fixed nozzle 221 A may be formed in a rear side of the injection case 222 F. The injection case 222 F may include an injection body connection portion 223 F having an open front on a bottom of the injection case 222 to connect with the injection body 240 F.

The injection nozzles 230 F each may include a first nozzle 231 F protruding from the left of the injection body 240 F and a second nozzle 232 F protruding from the right of the injection body 240 F. A direction from the left of the injection body 240 F, that is, the center of the washing tub 11 A toward the left wall 11 Ad is designated as a first direction A and a direction from the right of the injection body 240 F, that is, the center of the washing tub 11 A toward the right wall 11 Ae is designated as a second direction B.

An injection flow channel 700 F through which the washing water is supplied may be formed inside the injection body 240 F formed with the injection nozzles 230 F.

The injection flow channel 700 F includes a first injection flow channel 710 F and a second injection flow channel 720 F. The first injection flow channel 710 F and the second injection flow channel 720 F may be divided by a partition 730 F.

The first injection flow channel 710 F may inject the washing water through a first nozzle 231 F, and the second injection flow channel 720 F may inject the washing water through a second nozzle 232 F.

A sealing member 630 F for sealing may be provided between the injection body 240 F and the injection case 222 F.

The washing water flowing into the injection case 222 F through the fixed nozzle 221 A may be supplied to the first injection flow channel 710 F and the second injection flow channel 720 F through the injection body 240 F connected to the injection case 222 F and may be injected through the first nozzle 231 F and the second nozzle 232 F at the same time.

The washing water injected through the first nozzle 231 F and the second nozzle 232 F may be injected at all times.

The vane unit 121 A of the second deflection unit 120 A may be moved by the rail assembly 300 A and the motor assembly 400 A in the first direction A and the second direction B of the washing tub 11 A.

Accordingly, the first vane 121 Aa and the second vane 121 Ab that reciprocate left and right along the rail 310 A of the rail assembly 300 A may inject the washing water injected from the first nozzle 231 F and the second nozzle 232 F toward the dishes thereabove at the same time.

As illustrated in FIGS. 41 to 45 , the washing water supplied into the injection body 240 F through the injection case 222 F may flow into the first injection flow channel 710 F and the second injection flow channel 720 F.

The washing water of the first injection flow channel 710 F may be injected in the first direction A through the first nozzle 231 F. The washing water of the second injection flow channel 720 F may be injected in the second direction B through the second nozzle 232 F. The washing water may be injected through the first nozzle 231 F and the second nozzle 232 F at the same time.

A movement of the vane unit 121 A may be controlled by the motor assembly 400 A.

The motor assembly 400 A may move the first vane 121 Aa and the second vane 121 Ab in the second direction B.

When the first vane 121 Aa and the second vane 121 Ab are moved in the second direction B, the first vane 121 Aa becomes closer to the first nozzle 231 F from D′ 1 to D′ 2 and the second vane 121 Ab becomes farther from the second nozzle 232 F from D 1 to D 2 .

The movement of the first vane 121 Aa and the second vane 121 Ab deflect the washing water injected from the first nozzle 231 F and the second nozzle 232 F to be supplied toward the dishes thereabove.

Moving directions of the first vane 121 Aa and the second vane 121 Ab may be switched by a sensor unit 800 F.

The movement of the first vane 121 Aa and the second vane 121 Ab may be sensed by the sensor unit 800 F to be driven by the motor assembly 400 A.

When first vane 121 Aa and the second vane 121 Ab move in the first direction A, the first nozzle 231 F and the second nozzle 232 F may inject, e.g., always inject the washing water.

FIG. 46 is a view illustrating an injection unit and a deflection unit 120 G according to a seventh embodiment of the disclosure. FIG. 47 is an exploded perspective view of a motor assembly 400 G for driving the deflection unit 120 G according to the seventh embodiment of the disclosure. FIGS. 48 and 49 are exploded perspective views of the motor assembly 400 G according to the seventh embodiment of the disclosure. FIGS. 50 and 51 are view illustrating the movement of the deflection unit 120 G according to the driving of the motor assembly 400 G according to the seventh embodiment of the disclosure. Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 46 . Also, description s that are the same as those with reference to FIGS. 1 to 46 may be omitted.

As illustrated in FIGS. 46 and 51 , the motor assembly 400 G provided to drive the deflection unit 120 G according to the seventh embodiment of the disclosure may include a motor 411 G of a motor installation portion 410 G installed on the rear wall 11 Aa of the washing tub 11 A and a belt assembly 500 G provided to transfer the power of the motor 401 G.

The second injection unit 220 A may include the second fixed nozzle 221 A provided on the rear wall 11 Aa of the washing tub 11 A and the injection case 222 A installed in the rear of the second dish basket 22 A to be connected to the second fixed nozzle 221 A. The second fixed nozzle 221 A is provided to be fixed to the rear wall 11 Aa of the washing tub 11 A to inject the washing water to the washing tub 11 A. The fixed nozzle connection portion 224 A to connect the second fixed nozzle 221 A may be formed in a rear side of the injection case 222 A.

The injection case 222 A may include the injection body 240 A to extend forward and the injection nozzles 230 A on the left and right of the injection body 240 A.

The injection body connection portion 223 A having an open front to be connected with the injection body 240 A may be provided below the injection case 222 A, the.

The second deflection unit 120 G includes a vane unit 121 G provided to reciprocate in a direction in which the washing water is injected. The vane unit 121 G may include a first vane 121 Ga disposed to deflect the washing water injected through the first nozzle 231 A of the injection nozzle 230 A and a second vane 121 Gb disposed to deflect the washing water injected through the second nozzle 232 A.

The first vane 121 Ga and the second vane 121 Gb may be interconnected to interwork with each other. The first vane 121 Ga and the second vane 121 Gb may be spaced from each other at a certain interval due to a vane connection portion 124 G. The vane connection portion 124 G may connect ends of the first vane 121 Ga and the second vane 121 Gb.

The second deflection unit 120 G may include the motor assembly 400 G provided to move the vane unit 121 G.

The motor assembly 400 G may be disposed below the injection case 222 A.

The motor assembly 400 G may include the motor 401 G fixed to the rear wall 11 Aa of the washing tub 11 A and generating a driving force and the belt assembly 500 G to be connected to the motor 401 G and to transfer the driving force to the vane unit 121 G.

The belt assembly 500 G may include a first pulley 531 Ga and a second pulley 531 Gb that are connected to the motor 401 G and rotate, a belt 510 G that is connected to the first pulley 531 Ga and the second pulley 531 Gb and rotates, and a connection link 550 G connecting the belt 510 G with the vane unit 121 G.

The belt assembly 500 G may be installed on a belt frame 501 G installed on the rear wall 11 Aa of the washing tub 11 A. One side of the belt frame 501 G may be fixed to the rear wall 11 Aa of the washing tub 11 A and the other side thereof may be fixed to a belt frame bracket 229 G provided below the injection case 222 A.

The belt frame 501 G may include a motor installation opening 502 G corresponding to the motor 401 G installed in the motor installation portion 410 G on the rear wall 11 Aa of the washing tub 11 A.

A belt installation portion 505 G including a belt rail 507 G to movably install a belt 510 G may be provided in front of the belt frame 501 G. Pulley installation openings 506 G may be formed to install the first pulley 531 Ga and the second pulley 531 Gb for supporting the rotation of the belt 510 G at both ends of the belt installation portion 505 G.

The first pulley 531 Ga may be connected to the motor 401 G through a motor connection member 540 G and may receive the driving force of the motor 401 G. The first pulley 531 Ga may be connected to the belt 510 G and rotates the belt 510 G. One end of the belt 510 G may be rotatably supported by the second pulley 531 Gb. The second pulley 531 Gb may be installed in the pulley installation opening 506 G of the belt installation portion 505 G using a second pulley bracket 541 G.

A belt cover 520 G for protecting the belt 510 G may be installed In front of the belt installation portion 505 G, a.

A moving rail 130 G to receive the power from the motor assembly 400 G and to move the first vane 121 Ga and the second vane 121 Gb may be installed at rear stages of the first vane 121 Ga and the second vane 121 Gb of the vane unit 121 G.

The moving rail 130 G may connect a rail coupling portion 132 G in the rear of the first vane 121 Ga and a rail coupling portion 132 G in the rear of the second vane 121 Gb. The moving rail 130 G may have a shape bent toward a front lower side to protect the rail assembly 300 G.

A belt coupling portion 133 G to connect with the belt 510 G of the belt assembly 500 G may be formed on the moving rail 130 G. The belt coupling portion 133 G may be formed on a certain position on a rear side of the moving rail 130 G to protrude backward. The belt coupling portion 133 G may be rotatably connected to the belt 510 G using the connection link 550 G.

The connection link 550 G includes a first connection portion 551 G formed on one end and a second connection portion 552 G formed on the other end.

The first connection portion 551 G may be coupled with the belt coupling portion 133 G of the moving rail 130 G, and the second connection portion 552 G may be coupled with a connection link fixing member 560 G fixed to the belt 510 G.

The first connection portion 551 G and the second connection portion 552 G of the connection link 550 G may be rotatably coupled with the belt coupling portion 133 G of the moving rail 130 G and the connection link fixing member 560 G of the belt 510 G.

Accordingly, when the motor 401 G of the motor assembly 400 G rotates, the first pulley 531 Ga connected to the motor 401 G rotates and the belt 510 G rotates due to the rotation of the first pulley 531 Ga.

The moving rail 130 G of the vane unit 121 G may be movable by the connection link 550 G connected to the belt 510 G.

FIG. 52 is a view illustrating an injection unit and a deflection unit installed in a dish basket installable at different heights according to an eighth embodiment of the disclosure. FIG. 53 is a view illustrating a connection between a motor assembly of the deflection unit and a driving unit 400 H of the washing tub 11 A according to the eighth embodiment of the disclosure. FIG. 54 is an exploded perspective view of the driving unit 400 H according to the eighth embodiment of the disclosure. FIG. 55 is a cross-sectional view of the driving unit 400 H according to the eighth embodiment of the disclosure. FIGS. 56 and 57 are views illustrating an operation of the driving unit 400 H according to the eighth embodiment of the disclosure. Hereinafter, reference numerals not illustrated in the drawings can be found with reference to FIGS. 1 to 51 . Also, description s that are the same as those with reference to FIGS. 1 to 51 may be omitted.

As illustrated in FIGS. 52 to 57 , a second injection unit 220 H according to the eighth embodiment of the disclosure may be installed below the second dish basket 22 A to deflect the washing water injected from the second injection unit 220 H toward the dishes.

The second injection unit 220 H may include the fixed nozzle 221 A fixed to the rear wall 11 Aa of the washing tub 11 A and to inject the washing water, an injection case 222 H installed in the second dish basket 22 A connected to the fixed nozzle 221 A, and an injection body 240 H extending in front of the injection case 222 H.

The injection case 222 H may include a plurality of fixed nozzle connection openings 241 H on a rear side thereof, and the injection body 240 H may include a first nozzle 231 H and a second nozzle 232 H to inject the washing water supplied through the fixed nozzle connection openings 241 H forward.

The fixed nozzle connection openings 241 H may be connected to the second fixed nozzle 221 A, receive the washing water from the second fixed nozzle 221 A, and allow the washing water to flow into the injection case 222 H. The washing water flowing into the injection case 222 H may be supplied to the injection body 240 H connected through the injection body connection portion 223 H of the injection case 222 H.

The fixed nozzle connection openings 241 H may be formed at different heights to correspond to a variable position of the second dish basket 22 A.

The fixed nozzle connection openings 241 H may include a first fixed nozzle connection opening 241 Ha located on an upper portion of the injection case 222 H and a second fixed nozzle connection opening 241 Hb located below the first fixed nozzle connection opening 241 Ha.

That is, when the second dish basket 22 A is located in the first position P 1 , the second fixed nozzle 221 A is connected to the first fixed nozzle connection opening 241 Ha. When the second dish basket 22 A is located in the second position P 2 higher than the first position P 1 , the second fixed nozzle 221 A may be connected to the second fixed nozzle connection opening 241 Hb.

Although not illustrated in the drawings, a valve to move between the first fixed nozzle connection opening 241 Ha and the second fixed nozzle connection opening 241 Hb to open and close it may be provided inside the injection case 222 H.

Accordingly, when the washing water is supplied from the second fixed nozzle 221 A of the second injection unit 220 H, the washing water is supplied through one of the first fixed nozzle connection opening 241 Ha and the second fixed nozzle connection opening 241 Hb of the injection case 222 H connected to the second fixed nozzle 221 A and is injected through at least one of the first nozzle 231 H and the second nozzle 232 H of an injection nozzle 230 H.

The washing water injected through the injection nozzle 230 H deflects toward the dishes thereabove through the second deflection unit 120 A.

The second deflection unit 120 A may be provided below the second dish basket 22 A and moves together with the second dish basket 22 A when an installation height of the second dish basket 22 A varies.

The second deflection unit 120 A may include a driving unit 400 H for transferring the power to the motor assembly 400 A provided to move the vane unit 120 A and the motor assembly 400 A provided to receive the power from the driving unit 400 H to move the vane unit 120 A.

The driving unit 400 H includes a motor 400 Ha that is provided on the rear wall 11 Aa of the washing tub 11 A and generates a driving force.

The motor 400 Ha may be installed in a motor installation portion 410 H provided on the rear wall 11 Aa of the washing tub 11 A. The motor 400 Ha may be disposed in the rear of the motor installation portion 410 H. A motor shaft 400 Hb of the motor 400 Ha may be coupled with a rotation supporting shaft 402 Ha of the motor installation portion 410 H. The motor installation portion 410 H may include the rotation supporting shaft 402 Ha for installing the motor 400 Ha and a rotation shaft 401 Ha located above the rotation supporting shaft 402 Ha.

A first motor connection portion 401 H and a second motor connection portion 402 H for transferring the torque of the motor 400 Ha to the motor assembly 400 A may be installed in the motor installation portion 410 H. The first motor connection portion 401 H may be installed on the rotation shaft 401 Ha of the motor installation portion 410 H, and the motor connection portion 402 H is installed on the rotation supporting shaft 402 Ha. The first motor connection portion 401 H and the second motor connection portion 402 H may be installed to be engaged with each other.

Accordingly, when the motor 400 Ha on the rear wall 11 Aa of the washing tub 11 A rotates, the first motor connection portion 401 H connected to the motor shaft 400 Hb and the second motor connection portion 402 H engaged with the first motor connection portion 401 H rotate together.

A motor installation portion cover 411 H may be coupled with a front side of the motor installation portion 410 H The motor installation portion cover 411 H may be provided to protect the first and second connection portions 401 H and 402 H. The motor installation portion cover 411 H may include a first installation opening 411 Ha and a second installation opening 411 Hb that penetrate therethrough to connect the first motor connection portion 401 H and the second motor connection portion 402 H to the motor connection portion 412 A of the motor assembly 400 A. The first installation opening 411 Ha may be disposed above the second installation opening 411 Hb.

The motor connection portion 412 A of the motor assembly 400 A may include the first gear portion 411 A in which a motor connection portion 412 S may be provided to connect to any one of the first motor connection portion 401 H and the second motor connection portion 402 H depending on the installation position of the second dish basket 22 A and the second gear 131 A to be engaged with the first gear portion 411 A to move the vane unit 120 A.

Accordingly, when the second dish basket 22 A is located in the first position P 1 , the motor connection portion 412 A of the motor assembly 400 A in the rear of the second dish basket 22 A may be coupled with the first motor connection portion 401 H of the washing tub 11 A.

Due to the motor connection portion 412 A coupled with the first motor connection portion 401 H, the torque of the motor 400 Ha may be transferred to the vane unit 120 A through the first gear portion 411 A and the first gear 411 Aa of the first gear portion 411 A, the second gear 131 A of the moving rail 130 A are engaged with each other and move together.

When the second dish basket 22 A is located in the second position P 2 , the motor connection portion 412 A of the motor assembly may be coupled with the second motor connection portion 402 H of the washing tub 11 A.

Due to the motor connection portion 412 A coupled with the second motor connection portion 402 H, the torque of the motor 400 Ha may be transferred to the vane unit 120 A through the first gear portion 411 A and the first gear 411 Aa of the first gear portion 411 A and the second gear 131 A of the moving rail 130 A are engaged with each other and move together.

The second motor connection portion 402 H may be engaged and receive the torque due to the rotation of the first motor connection portion 401 H connected to the motor 400 Ha. Referring to FIGS. 58 and 59 , a dish washing machine according to a ninth embodiment of the disclosure will be schematically described.

The dish washing machine 1 includes a cabinet 10 forming an external shape, a washing tub 11 provided inside the cabinet 10 , dish baskets 20 inside the washing tub 11 to store dishes, an injection unit 200 inside the washing tub 11 to inject washing water, a deflection unit 100 to move inside the washing tub 11 to deflect the washing water toward the dishes, and a power transmission device 300 to transfer power to move the deflection unit 100 .

A front side of the cabinet 10 may open to allow a user to store the dishes in the washing tub 11 or to withdraw the dishes from the washing tub 11 , and a door 12 may be installed to open and close the washing tub 11 .

The door 12 may be hinge-coupled with a bottom of the front side of the cabinet 10 and rotatable, and able to open and close the washing tub 11 A. The washing tub 11 may include a top wall 11 c , a rear wall 11 a , left and right walls 11 d and 11 e , and a bottom plate 11 b.

A sump 15 to store the washing water, a circulating pump 14 to pump the washing water in the sump 15 , and a drainage pump 13 that discharges the washing water in the sump 15 to the outside of the cabinet 10 together with waste may be provided below the washing tub 11 of the cabinet 10 .

The dish baskets 20 may be racks, for example, wire racks formed of wires to allow the washing water to pass therethrough without ponding. The dish baskets 20 may be detachably provided inside the washing tub 11 . A handle 23 to permit a user to smoothly detaching the dish basket 20 may be provided on a top of a front side of the dish basket 20 .

The dish baskets 20 may include a first dish basket 21 disposed on a bottom of the washing tub 11 and a second dish basket 22 disposed in the middle of the washing tub 11 .

The first dish basket 21 may be coupled, for example, slidably coupled by a fixed rail 41 spaced upward from the bottom plate 11 b of the washing tub 11 .

The fixed rails 41 may be formed on the left and right walls 11 d and 11 e of the washing tub 11 forward and rearward in the washing tub 11 . Fixed rollers 53 may be installed on both sides of the first dish basket 21 to be rotatably coupled with the fixed rails 41 .

Accordingly, the fixed rollers 53 of the first dish basket 21 may be coupled with the fixed rails 41 and attachable to or detachable from the washing tub 11 A forward and rearward.

An installation height of the second dish basket 22 disposed in an upper portion of the washing tub 11 may variably be provided such that various types and sizes of dishes may be stored.

Guide rails 42 for installing the second dish basket 22 in the washing tub 11 may be formed on the left and right walls 11 d and 11 e of the washing tub 11 forward and rearward.

The guide rails 42 may each include a first guide rail 42 a to support the second dish basket 22 in the first position P 1 and a second guide rail 42 b spaced upward from the first guide rail 42 a . The second dish basket 22 supported by the second guide rail 42 b may be located in the second position P 2 spaced upward from the first position P 1 .

Accordingly, when the second dish basket 22 is located in the first position P 1 , it is possible to store dishes, e.g., dishware and cookware having a large size and volume such as plates and pots. When the second dish basket 22 is located in the second position P 2 located higher than the first position P 1 , it is possible to store dishes having a smaller size and volume such as bowls or flatware.

Guide units 50 couplable with the guide rails 42 may be provided on both sides of the second dish basket 22 . The guide units 50 each may include a guide bracket 51 fixedly coupled with the second dish basket 22 , a first guide roller 52 a and a second guide roller 52 b formed on front and rear ends on top of the guide bracket 51 , and a third guide roller 52 c disposed below the second guide roller 52 b.

The guide bracket 51 may be disposed in the rear of the second dish basket 22 to enable the guide rail 42 and the second dish basket 22 to smoothly slide.

The first guide roller 52 a and the second guide roller 52 b may be formed horizontally in parallel with each other.

When the first guide roller 52 a and the second guide roller 52 b of the second dish basket 22 are coupled with the first guide rail 42 a and move, the second dish basket 22 may be located in the first position P 1 .

When the first guide roller 52 a and the second guide roller 52 b of the second dish basket 22 are coupled with the second guide rail 42 b and move, the second dish basket 22 may be located in the second position P 2 .

The third guide roller 52 c may be coupled with the first guide rail 42 a to enable the second dish basket 22 to stably slide.

The injection unit 200 may be provided to be capable of washing the dishes by injecting the washing water at a high pressure. The injection unit 200 may include a rotating nozzle 16 provided on the top wall 11 c of the washing tub 11 to inject the washing water while rotating, a first injection unit 210 provided on the bottom of the washing tub 11 , and a second injection unit 220 installed on a bottom of the second dish basket 22 to be disposed in the middle of the washing tub 11 .

The rotating nozzle 16 on the top may rotate above the second dish basket 22 due to water pressure and may inject the washing water downward. A plurality of injection holes 16 a may be provided on a bottom end of the rotating nozzle 16 a . The rotating nozzle 16 may inject the washing water directly toward the dishes stored in the second dish basket 22 .

The first injection unit 210 may be fixed to one side of the washing tub 11 and may be disposed adjacent to the rear wall 11 a of the washing tub 11 to inject the washing water toward the front of the washing tub 11 . Accordingly, the washing water injected by the first injection unit 210 may not move directly toward the dishes.

The washing water injected by the first injection unit 210 may deflect toward the dishes in the first dish basket 21 through a first deflection unit 110 . The first injection unit 210 may include a first fixed nozzle 211 provided forward on the rear wall 11 a of the washing tub 11 .

The first deflection unit 110 includes a first vane 111 to deflect the washing water injected from the first fixed nozzle 211 toward the dishes in the first dish basket 21 . The vane 111 may extend to the left and right of the washing tub 11 . That is, a longitudinal one end of the first vane 111 may be formed adjacent to the left wall 11 d of the washing tub 11 and a longitudinal other end of the first vane 111 may be formed adjacent to the right wall 11 e of the washing tub 11 .

The first vane 111 may be provided such that it is able to linearly reciprocate in an injection direction of the washing water injected by the first fixed nozzle 211 . The first vane 111 may move along a first lane 112 . Accordingly, a linear injection structure including the first fixed nozzle 211 and the first vane 111 may wash a large area, e.g., the whole area of the washing tub 11 upward from a bottom end of the washing tub 11 without a blind spot, which may be differentiated from injecting washing water only within a radius of rotation of the rotating nozzle 16 .

As illustrated in FIGS. 60 and 61 , the second dish basket 22 , provided in the washing tub 11 of the dish washing machine 1 such that a mounting height thereof is variable, may include the second injection unit 220 to inject the washing water and a second deflection unit 120 to deflect the washing water injected from the second injection unit 220 , for example, toward the dishes.

The second injection unit 220 includes a second fixed nozzle 221 and an injection case 222 , for example, integrally formed with the second dish basket 22 and connected to the second fixed nozzle 221 .

The second fixed nozzle 221 may be fixed to the rear wall 11 a of the washing tub 11 to inject the washing water. The injection case 222 may be fixedly disposed on a rear side of the second dish basket 22 .

A plurality of connection openings 223 a and 223 b may be formed in the rear of the injection case 222 . A plurality of nozzles 225 may be formed in the front of the injection case 222 to inject the washing water supplied through the connection openings 223 a and 223 b , for example, in a forward direction.

The injection nozzle 225 may extend below the injection case 222 . The injection nozzle 225 may extend in the left and right directions of the washing tub. A plurality of injection nozzles 225 may be formed.

A plurality of connection openings 223 may be formed, for example, at different heights to correspond to a variable position of the second dish basket 22 . A first connection opening 223 a may be formed to be connectable to the second fixed nozzle 221 when the second dish basket 22 is located in the first position P 1 . A second connection opening 223 b may be formed to be connectable to the second fixed nozzle 221 when the second dish basket 22 is located in the second position P 2 . The first connection opening 223 a may be located above the second connection opening 223 b.

A valve 224 to rotate, for example, between the first connection opening 223 a and the second connection opening 223 b to open and close an opening may be provided inside the injection case 222 . The valve 224 may rotate downwards to open the first connection opening 223 a and to close the second connection opening 223 b , for example, when the second fixed nozzle 221 is connected to the first connection opening 223 a of the injection case 222 . The valve 224 may rotate upwards to open the second connection opening 223 b and to close the first connection opening 223 a when the second fixed nozzle 221 is connected to the second connection opening 223 b.

Accordingly, when the washing water is injected from the second fixed nozzle 221 of the second injection unit 220 , the washing water may be supplied through the connection opening 223 of the injection case 222 connected to the second fixed nozzle 221 and, for example, is injected through the injection nozzle 225 from the rear of the washing tub 11 toward the front.

The washing water injected forward through the second injection unit 220 may deflect upwards through the second deflection unit 120 provided to be integrally formed with the bottom of the second dish basket 22 .

As illustrated in FIGS. 62 to 66 , the second deflection unit 120 may deflect the washing water injected from the second injection unit 220 toward the second dish basket 22 .

Since the second deflection unit 120 may be provided to be integrally formed with the bottom of the second dish basket 22 , the second deflection unit 120 moves together with the second dish basket 22 when the installation height of the second dish basket 22 varies.

The second deflection unit 120 may include the power transmission device 300 transferring power to move below the second dish basket 22 .

The power transmission device 300 may include a motor 301 , for example, fixed to one side of the washing tub 11 and generating a driving force. A gear unit 310 may be provided to transfer the driving force of the motor 301 to the second deflection unit 120 .

The motor 301 may be provided on the rear wall 11 a of the washing tub 11 . A motor installation opening 11 f may be formed on the rear wall 11 a of the washing tub 11 to expose a motor shaft 302 of the motor 301 .

The gear unit 310 may be provided to be coupled with the motor 301 and may be fixed to the rear of the second dish basket 22 . The gear unit 310 may be provided to move together when the installation height of the second dish basket varies.

The gear unit 310 includes a gear case 300 a formed to be fixable to the second dish basket 22 and a plurality of gears 311 and 312 provided inside the gear case 300 a.

The plurality of gears 311 and 312 may include a first gear 311 formed at different heights, a second gear 312 formed spaced from the first gear 311 , and a connection gear 320 provided to connect the first gear 311 with the second gear 312 .

The connection gear 320 may include a first connection gear 321 connected to the first gear 311 , a second connection gear 322 connected to the second gear 312 , a connection shaft 320 a connecting the first connection gear 321 with the second connection gear 322 , a third gear 313 that is coupled with the connection shaft 320 a and rotates, and a fourth gear 314 horizontally connected to the third gear 313 . The fourth gear 314 is connected to a driving pulley 131 of the deflection unit 100 , which will be described below.

At least one reduction gear 324 provided to reduce the torque of the motor 301 may be formed between the third gear 313 and the fourth gear 314 .

The reduction gear 324 between the third gear 313 and the fourth gear 314 may include a first reduction gear 324 a connected to the third gear 313 and a second reduction gear 324 b connecting the first reduction gear 324 a with the fourth gear 314 . According to an exemplary embodiment, for example, two reduction gears may be provided between the motor 301 and the driving pulley 131 but the present invention is not limited thereto. For example, according to the performance and size of a motor, the number and shape of reduction gears may vary.

The first gear 311 may be disposed on a top end of the gear case 300 a , and the second gear 312 may be disposed spaced downward from the first gear 311 .

To correspond to the first position P 1 and the second position P 2 of the second dish basket 22 , the first gear 311 and the second gear 312 have an interval that may be the same as that between the first position P 1 and the second position P 2 .

Accordingly, when the second dish basket 22 is located in the first position P 1 , the first gear 311 of the gear unit 310 may be coupled with the motor shaft 302 of the motor 301 . When the second dish basket 22 is located in the second position P 2 , the second gear 312 of the gear unit 310 may be coupled with the motor shaft 302 of the motor 301 .

Driving forces of the first connection gear 321 connected to the first gear 311 and the second connection gear 322 connected to the second gear 312 may be transferred to the third gear 313 horizontally connectable by the connection shaft 320 a.

According to an exemplary embodiment, the driving force of the motor 301 transferred through the power transmission device 300 may be transferred to the second deflection unit 120 to drive the second deflection unit 120 .

The second deflection unit 120 may include a second vane 121 provided to move inside the washing tub 11 and to deflect the washing water injected from the second injection unit 220 , for example, toward the dishes and a rail 122 guiding the movement of the second vane 121 .

The rail 122 may be provided to guide the movement of the second vane 121 . An opening 122 a may be formed in a bottom surface of the rail 122 . An inner space 122 b may be formed therein to be connected to the opening 122 a.

A belt 140 may be provided In the inner space 122 b of the rail 122 . The belt 140 includes an idle pulley 180 and a driving pulley 131 provided to rotatably support the belt 140 . The driving pulley 131 may be connected to the fourth gear 314 of the power transmission device 300 transferring the driving force of the motor 301 .

A rotating shaft 330 coupled with the driving pulley 131 may be provided on the fourth gear 314 . According to an exemplary embodiment, for example, the rotating shaft 330 may be provided on the fourth gear 314 , but the present invention is not limited thereto. For example, a shaft provided for connection with a driving pulley may be provided on one of a third gear and a plurality of reduction gears connected to the third gear.

The second deflection unit 120 may include a belt holder 160 disposed, for example, inside the inner space 122 b of the rail 122 coupled with the idle pulley 180 and to linearly reciprocate, a vane holder 150 disposed outside the rail 122 coupled with the belt holder 160 and to linearly reciprocate, with which the second vane 121 is coupled, a rear holder 130 rotatably supporting the driving pulley 131 and coupled with a rear end of the rail 122 , and a front holder 190 rotatably supporting the idle pulley 180 and coupled with a front end of the rail 122 .

The rail 122 may be formed of a metal material and may be formed in a lengthwise direction forward and rearward in the washing tub 11 . The belt 140 may be disposed in the inner space 122 b of the rail 122 to prevent interfering in a driving due to the contact with the dishes inside the washing tub 11 or being corroded due to the contact with the washing water.

The belt 140 may be wound on the driving pulley 131 and the idle pulley 180 to form a closed curve and may rotate in a rotation direction of the motor 301 of the power transmission device 300 . The belt holder 160 may be disposed in the inner space 122 b of the rail 122 similar to the belt 140 and be coupled with a tooth form 141 of the belt 140 to be movable move together with the belt 140 . The belt holder 160 may include a tooth-shaped coupling portion 164 having a shape corresponding to the tooth form 141 of the belt 140 .

The belt holder 160 may include a plurality of legs 160 a and 160 b supportable by the rail 122 . The plurality of legs 160 a and 160 b may include lateral legs 160 a laterally protruding and supported by side walls of the rail 122 and downward legs 160 b protruding downward and supported by a bottom wall of the rail 122 .

The lateral legs 160 a may be elastically deformable to reduce noise and vibration caused by collision and friction with the rail 122 and to enable the belt holder 160 to smoothly move while the belt holder 160 is moving. The lateral legs 160 a may include, for example, a spring, for example, a plate spring.

The belt holder 160 may include a fastening portion 161 couplable with the vane holder 150 . The fastening portion 161 may include a fastening hole 151 into which a fastening member 152 may be inserted.

The vane holder 150 is couplable with the belt holder 160 to move together with the belt holder 160 and to transfer a driving force of the belt holder 160 to the second vane 121 . The vane holder 150 may be provided to at an outer surface of the rail, for example, to surround an outer surface of the rail 122 to move forward and rearward in the washing tub 11 .

The vane holder 150 may be coupled with the belt holder 160 through the opening 122 a of the rail 122 . The vane holder 150 may include a fastening hole 151 with the belt holder 160 .

Accordingly, the fastening member 152 may be fastened to the fastening hole 151 of the vane holder 150 and the fastening hole 151 of the belt holder 160 , thereby coupling the vane holder 150 with the belt holder 160 .

The fastening member 152 may move upward from a bottom and may be sequentially fastened to the fastening hole 151 of the vane holder 150 and the fastening hole of the belt holder 160 .

The driving pulley 131 includes a rotating shaft 131 a connectable to the rotation shaft 330 of the power transmission device 300 to receive a driving force and a belt coupling portion 132 couplable to the belt 140 .

The rear holder 130 rotatably supports the driving pulley 131 and may be coupled with a rear end of the rail 122 .

The idle pulley 180 includes a rotating shaft 181 and a belt coupling portion 182 with which the belt 140 may be coupled.

The front holder 190 may be coupled with the front end of the rail 122 . The front holder 190 may be provided to be movable in a longitudinal direction of the rail 122 and may include a pulley bracket 191 that rotatably supports the idle pulley 180 .

The pulley bracket 191 includes a pulley supporting surface 192 supporting the rotating shaft 181 of the idle pulley 180 .

The rail 122 , the belt 140 , the driving pulley 131 , the rear holder 130 , the idle pulley 180 , and the front holder 190 may be assembled with one another due to the tension of the belt 140 .

Due to the tension of the belt 140 , the driving pulley 131 may be pressurized in a direction in which it becomes closer to the rail 122 . This force may be transferred to the rear holder 130 through the pulley supporting surface 192 of the rear holder 130 , thereby closely attaching the rear holder 130 to the rear end of the rail 122 .

Due to the tension of the belt 140 , the idle pulley 180 may be pressurized in a direction in which it becomes closer to the rail 122 . This force may be transferred to the front holder 190 through the pulley supporting surface 192 of the front holder 190 , thereby closely attaching the front holder 190 to the front end of the rail 122 .

The front holder 190 may include an elastic member 193 for maintaining the tension of the belt 140 . One end of the elastic member 193 may be supported by the front holder 190 , and the other end of the elastic member 193 may be supported by the pulley bracket 191 . The elastic member 193 may include a compression spring.

Due to an elastic force of the elastic member 193 , the pulley bracket 191 may be pressurized in a direction in which it becomes farther from the rail 122 .

Since the pulley bracket 191 may be pressurized in the direction in which it becomes closer to the rail 122 due to the tension of the belt 140 , the pulley bracket 191 moves to a position in which the tension of the belt 140 and the elastic force of the elastic member 193 remain balanced.

That is, when the belt 140 stretches and decreases in tension and the elastic force of the elastic member 193 becomes greater than the tension of the belt 140 , the pulley bracket 191 moves in the direction in which it becomes farther from the rail due to the elastic force of the elastic member 193 . Upon the pulley bracket 191 moving in the direction in which it becomes farther from the rail 122 , the belt 140 may strain again and the tension of the belt 140 is restored.

Thus, even when the belt 140 stretches, for example, due to thermal expansion, the pulley bracket 191 moves and pulls the belt 140 to maintain the constant tension of the belt 140 , thereby increasing the reliability of products.

The front holder 190 may include a fixing bracket 194 to fix the second deflection unit 120 to the second dish basket 22 . The fixing bracket 194 may include a first bracket 194 a to extend upward from the front holder 190 and a second bracket 194 b bent from the first bracket 194 a to horizontally extend.

The second bracket 194 b includes a fixing hole 194 c to be fixed to the second dish basket 22 . The fixing hole 194 c may be laterally formed to insert the second bracket 194 b into the bottom end of the second dish basket 22 . According to an exemplary embodiment, for example, the second deflection unit 120 may be fixed to a dish basket using a fixing bracket, but the present invention is not limited thereto. For example, a second deflection unit may be integrally formed with a dish basket.

The second dish basket 22 mounted in the washing tub 11 may be installed in one of the first position P 1 and the second position P 2 depending on a position of the guide rail 42 coupled therewith.

The injection case 222 and the gear unit 310 fixed to the second dish basket 22 may be moved together due to a change in position of the second dish basket 22 and vary in position in the washing tub 11 .

It may be necessary to connect the injection case 222 and the gear unit 310 to the fixed nozzle 211 and the motor shaft 302 fixed to the rear wall 11 a of the washing tub 11 .

As illustrated in FIG. 64 , the injection case 222 may be insertable into or separable from the first connection opening 223 a and the second connection opening 223 b in the rear of the injection case 222 , respectively, depending on an installation position of the second dish basket 22 .

The first gear 311 and the second gear 312 of the gear unit 310 may be provided to be insertable into or separable from the motor shaft 302 , respectively, depending the installation position of the second dish basket 22 .

The first connection opening 223 a and the second connection opening 233 b of the injection case 222 may be formed, for example, horizontally to the first gear 311 and the second gear 312 of the gear unit 310 .

Accordingly, when the second dish basket 22 is located in the first position P 1 , the first connection opening 223 a of the injection case 222 may be connected to the fixed nozzle 211 to receive the washing water.

The motor shaft 302 of the motor 301 may be connected to the first gear 311 of the gear unit 310 and may receive the driving force of the motor 301 . The driving force transferred through the first gear 311 may be transferred to the third connection gear 320 through the first connection gear 321 connected to the first gear 311 and the connection shaft 320 a connected to the first connection gear 321 and transferred to the driving pulley 131 while reduced through the third connection gear 320 and a fourth connection gear 320 .

When the second dish basket 22 is located in the second position P 2 , the second connection opening 223 b of the injection case 222 may be connected to the fixed nozzle 211 to receive the washing water.

The motor shaft 302 may be connected to the second gear 312 of the gear unit 310 and may receive the driving force of the motor 301 . The driving force transferred through the second gear 312 may be transferred to the third connection gear 320 through the second connection gear 322 connected to the second gear 312 and the connection shaft 320 a connected to the second connection gear 322 and transferred to the driving pulley 131 while reduced through the third connection gear 320 and the fourth connection gear 320 .

The motor shaft 302 of the motor 301 includes a first coupling portion 303 that includes protrusions and grooves alternating to rotate the first gear 311 and the second gear 312 .

A second coupling portion 311 a may be provided in the rear of the first gear 311 and the second gear 312 to connect the first coupling portion 303 of the motor shaft 302 with the gear unit 310

To correspond to a shape of the first coupling portion 303 , the second coupling portion 311 a may include a rear surface formed of alternating protrusions and grooves. According to an exemplary embodiment, for example, a first coupling portion and a second coupling portion have a cross shape, but the present invention it is not limited thereto.

As illustrated in FIGS. 67 and 68 , the second injection unit 220 and the second deflection unit 120 that are integrally formed with the second dish basket 22 of the dish washing machine 1 receive the power of the motor 301 through the power transmission device 300 and are driven when a height of the second dish basket 22 varies.

When the second dish basket 22 is located in the first position P 1 , a first interval L 1 is formed between the top wall 11 c of the washing tub L 1 and the second dish basket 22 . When the second dish basket 22 is located in the second position P 2 , a second interval L 2 is formed between the top wall 11 c of the washing tub 11 and the second dish basket 22 . The first interval L 1 may be longer than the second interval L 2 .

Accordingly, when the second dish basket 22 is located in the first position P 1 , it is possible to store dishes having a large size and volume such as plates. When the second dish basket 22 is located in the second position P 2 located higher than the first position P 1 , it is possible to store dishes having a smaller size and volume such as bowls or flatware.

According to an exemplary embodiment, a dish washing machine may minimize areas that washing water does not reach.

According to an exemplary embodiment, a nozzle hit distance may be reduced and a height of a vane may be lowered through a vane unit and a flow channel switching device to provide a linear type compact size, thereby enlarging a dishware and cookware loading volume.

According to an exemplary embodiment, a height of a basket may be controllable through a driving unit of a height-adjustable linear type injection unit, thereby storing various types of dishware.

According to an exemplary embodiment, the injection efficiency of washing water increases due to the reciprocation of a height-adjustable injection unit provided in a basket, and it is possible to perform split injection or focused injection inside a dish basket by adjusting a position of the injection unit.

According to an exemplary embodiment, due to less loss of a flow channel power consumption may be reduced washing efficiency increased.

Although a few embodiments of the present invention have been illustrated and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of that is defined in the claims and their equivalents.