Connector assembling structure

The present invention is related to a connector assembling structure, and more particularly to a coaxial cable connector which is integrally processed and can be easily assembled. The volume of the connector is effectively reduced.

It is a trend to minimize the volume of electric or electronic connector and demand higher electric properties thereof. Also, in order to increase production efficiency and facilitate assembly of the connector, it is tried by manufacturers to design simpler structure within a limited space and manufacture the connector at lower cost while achieving more precisely electric connection.

The electric connecting structure of a conventional mini coaxial cable includes two board-to-board connectors respectively soldered on an adapting board and a circuit board. A mini coaxial cable is soldered on the adapting board. By means of the board-to-board connectors, the mini coaxial cable can be electrically connected with the circuit board. With respect to such structure, the cost for the components is relatively high and it is complicated to process the structure. Moreover, the board-to-board connectors are not specifically designed for the mini coaxial cable. Therefore, it is necessary to select different types of board-to-board connectors in accordance with different height restrictions. It increases inconvenience in management of stored products.

Recently, a connector specifically designed for the mini coaxial cable has been developed. In manufacturing, a specific tool is used to press and inlay the respective terminals into an insulating seat. The width of the connector is varied with the number of the terminals. Therefore, when manufacturing connectors with different widths, it is necessary to replace the specific tool with another one. It is troublesome to replace the tool and the replacement will lower the production efficiency.

It is therefore a primary object of the present invention to provide a connector assembling structure including a connector main body and an insertion seat. The center of an insulating seat of the main body are formed with multiple transverse channels which are arranged in parallel to each other. Two notches are formed on the periphery of the top side of the insulating seat in positions to which the lines of terminal insertion holes are directed. Accordingly, a longer tool can be co-used to press down and locate the terminals without being obstructed. Therefore, it is unnecessary to use a specific processing tool so that the production procedure and implements are simplified and the manufacturing cost is lowered.

It is a further object of the present invention to provide the above connector assembling structure in which each terminal is substantially L-shaped, having a horizontal section and a vertical section which are respectively positioned on two sides away from a central line of the terminal. Accordingly, when the terminals are oppositely arranged in two lines, the vertical sections of the terminals are symmetrically arranged, while the horizontal sections are interlaced. Therefore, in unit length, the number of the arranged terminal (density) is increased so that the connector can have smaller volume and lighter weight.

The present invention can be best understood through the following description and accompanying drawings wherein:

FIG. 1 is a perspective exploded view of the connector main body of the present invention;

FIG. 2 is a perspective exploded view of the insertion seat of the present invention;

FIG. 3 is a perspective partially assembled view of the connector main body of the present invention, also showing the other side of the connector main body turned by 180 degrees;

FIG. 4 is a perspective assembled view of the connector main body of the present invention and the coaxial cables;

FIG. 5 is a perspective view of the connector main body of the present invention prior to being assembled with the insertion seat;

FIG. 6 is a perspective assembled view of the connector main body and the insertion seat of the present invention;

FIG. 7 shows another embodiment of the terminal of the present invention; and

FIG. 8 is a perspective assembled view according to FIG. 7 .

Please refer to FIGS. 1 to 3 . The present invention includes a connector main body 1 and an insertion seat 2 . The connector main body 1 is composed of an insulating seat 11 , an upper cover 12 , a lower cover 13 and multiple terminals 14 . A projecting section 111 extends from the bottom of the insulating seat 11 . The projecting section 111 has a central hollow receptacle 112 . The center of top side of the insulating seat 11 is formed with a recess in which multiple terminal insertion holes 113 are symmetrically parallelly arranged in lines. Opposite to the respective terminal insertion holes 113 , parallel transverse channels 1131 , 1132 are arranged at intervals and extend in reverse directions. A terminal separating board 1133 is disposed between each transverse channels 1131 , 1132 . Each terminal insertion hole 113 is downward connected with a longitudinal channel 1134 formed on inner side of the projecting section 111 . An eccentric slide way 1111 is formed between the two longitudinal channels 1134 , which is proximate to one side of the projecting section 111 . Two notches 114 are formed on the periphery of top side of the insulating seat 11 in positions to which the lines of terminal insertion holes are directed (on the same side of the eccentric slide way 1111 ). A lateral opening 116 is additionally formed on the periphery of top side of the insulating seat 11 between the two notches 114 . Two end sections of the lateral opening 116 are respectively formed with two engaging dents 1161 . The outer periphery of the insulating seat 11 is formed with multiple engaging tenons 115 . The upper cover 12 and lower cover 13 are shells with conductive and antimagnetic function. The center of the lower cover 13 is formed with a window 131 . An annular skirt 132 downward extends from the periphery of the window 131 for fitting around and embracing the projecting section 111 of the insulating seat 11 . A bent edge 134 upward extends from the outer periphery of the lower cover 13 . A lateral opening 133 is formed on a portion of the bent edge 134 adjacent to the lateral opening 116 of the insulating seat 11 . An extension slat 1331 outward extends from the bottom side of the lateral opening 133 . The bent edge 134 is further formed with notches 1343 and locating holes 1341 corresponding to the notches 114 and engaging tenons 115 of the insulating seat 11 . In addition, the outer periphery of the bent edge 134 is formed with multiple engaging tenons 1342 . The inner periphery of the skirt 132 is provided with multiple inward projecting resilient plates 1321 . The periphery of the upper cover 12 is provided with bent edge 121 for mating with the top side of the insulating seat 11 . The periphery of the upper cover 12 is formed with multiple locating hole 1211 corresponding to the engaging tenons 1342 of the lower cover 13 . In addition, one side of the upper cover 12 is formed with a downward extending lateral opening 122 corresponding to the lateral opening 116 of the insulating seat 11 . An extension slat 1221 outward extends from the top edge of the lateral opening 122 . The top face of the upper cover 12 is provided with multiple downward extending resilient contact plates 123 beside the lateral opening 122 . At least one perforation 1231 is formed on free end of each contact plate 123 . Each terminal 14 is substantially L-shaped, having a horizontal section 141 and a vertical section 142 which are respectively positioned on two sides from the central line. The insertion seat 2 is composed of a seat body 21 , a lateral cover 22 and multiple resilient terminals 23 . The seat body 21 is formed with a central projecting section 211 . The periphery of the central projecting section 211 is formed with an annular insertion groove 212 . One side of the seat body 21 is formed with a lateral opening 213 . Two sides of the central projecting section 211 are formed with two rows of multiple slits 2111 arranged opposite to each other. Lateral projecting blocks 2113 are disposed at two end sections of the seat body 21 proximate to one side. Each lateral projecting block 2113 is formed with a central engaging dent 2112 . Two ends of the seat body 21 adjacent to the lateral opening 213 are respectively formed with two insertion slits 2131 . The bottom of the lateral opening 213 is provided with multiple locating tenons 2132 . The lateral cover 22 is substantially U-shaped. Two ends thereof respectively have two extension sections 221 . The center of each extension section 221 is punched with an obliquely extending projecting resilient plate 2211 . The middle portion of the lateral cover 22 is formed with multiple locating holes 222 corresponding to the locating tenons 2132 of the seat body 21 . An inward projecting lateral press board 223 is disposed between each two adjacent locating holes 222 . A soldering section 224 downward extends from each end of the lateral cover 22 . Each resilient terminal 23 is L-shaped, having a base section 231 and a resilient raised section 232 . The resilient raised section 232 extends into the slit 2111 of the seat body 21 and laterally resiliently protrudes. The base section 231 outward parallelly extends from the bottom side of the seat body 21 .

When assembled, the vertical sections 142 of the terminals 14 are inserted into the terminal insertion holes 113 of the insulating seat 11 . The horizontal sections 141 of the terminals 14 extends opposite to each other. An elongated bar-shaped tool is used to downward press the terminals 14 to a fixed position. At this time, the horizontal sections 141 of the terminals 14 in the insertion holes 113 are engaged in the transverse channels 1131 , 1132 and oppositely interlaced with each other. The vertical sections 142 downward extend into the longitudinal channel 1134 of inner edge of the central receptacle 112 in the projecting section 111 . The projecting section 111 of the insulating seat 11 extends into the window 131 of the lower cover 13 and is held by the skirt 132 . (At this time, the resilient plates 1321 of the skirt 132 extend into the eccentric slide way 1111 of the insulating seat 11 .) The engaging tenons 115 are inlaid in the locating holes 1341 and located therein.

By means of the notches 114 at two ends of the insulating seat 11 , a longer pressing tool can be used to press down the terminals 14 without being obstructed. Accordingly, in manufacturing, it is only necessary to use a pressing tool with sufficient length to complete the terminal pressing operation of various connector main bodies 1 with different lengths and dimensions. Therefore, the production equipment and the operation procedure can be simplified to increase production efficiency.

FIGS. 4, 5 and 6 show the assembling operation of the connector main body with the coaxial cable and the insertion seat in different states. In actual application, a bus of coaxial cables 4 via a grounding plate 41 are serially connected a grounding line on the surface of the coaxial cables 4 . When assembled, the grounding plate 41 is positioned on inner side of the lateral opening 116 of the insulating seat 11 with two end sections inserted in the engaging dents 1161 . Therefore, the signal ends of the coaxial cables 4 contact with the horizontal sections 141 of the terminals 14 and are soldered and located thereon. Accordingly, the coaxial cables 4 are prevented from being pulled out and detached by external force.

Then, the upper cover 12 is mated with the insulating seat 11 to cover the same. The engaging tenons 1342 of the lower cover 13 are inlaid in the locating holes 1211 of the upper cover 12 to associate the upper cover and lower cover with each other. At this time, the extension slat 1221 of the upper cover 12 and the extension slat 1331 of the lower cover 13 clamp the coaxial cables 4 on upper and lower sides thereof beside the grounding plate 41 . This achieves an enhanced locating effect. Also, an adhesive can be additionally applied to the extension slats to fix the same. The resilient contact plates 123 of the upper cover 12 press and contact with the grounding plate 41 to electrically connect therewith. Moreover, a solder can be filled in the perforations 1231 to solder the grounding plate 41 with the contact plates 123 . The extension sections 221 at two ends of the lateral cover 22 of the insertion seat 2 are inserted into the insertion slits 2131 of the seat body 21 . The projecting resilient plates 2211 are engaged in the slits 2131 to locate the lateral cover 22 . After assembled, the base sections 231 of the resilient terminals 23 are soldered at the terminal soldering points 31 of the circuit board 3 . Also, the soldering section 224 of the lateral cover 22 is soldered at the lateral cover soldering points 32 of the circuit board 3 and grounded. Finally, the connector main body 1 and the insertion seat 2 are mated with each other with the central projecting section 211 of the seat body 21 fitted in the central receptacle 112 of the insulating seat 11 . The lateral projecting blocks 2113 are fitted in the notches 114 so as to achieve both functions of slide guide and anti-idleness. When the projecting resilient plates 1321 of the skirt 132 abut against the engaging dents 2112 , the main body 1 is connected with the insertion seat 2 . The lateral pressing boards 223 of the lateral cover 22 resiliently press outer side of the skirt 132 to tightly abut against and ground the same. Under such circumstance, the vertical sections 142 of the terminals 14 are electrically connected with the resilient raised sections 232 of the resilient terminals 23 . Accordingly, the transmission signals of the coaxial cables 4 are connected to the circuit board 3 .

The eccentric slide way 1111 of the insulating seat 11 and the corresponding lateral projecting blocks 2113 of the seat body 21 are disposed in a position away from the axis. In the case that they are relatively 180 degrees rotated to a reverse position, it will be impossible to insert the insulating seat 11 into the seat body 21 . Accordingly, an anti-idleness effect is achieved.

FIGS. 7 and 8 show another embodiment of the terminal structure of the present invention, in which a reverse terminal 140 is used. The reverse terminal 140 has a horizontal section 1401 and a vertical section 1402 which are arranged in positions and extend in directions reverse to those of the horizontal section 141 and vertical section 142 of the terminal 14 . When the reverse terminals 140 are inserted in the terminal insertion holes 113 of the insulating seat 11 , the horizontal sections 1401 extend in the same direction between the horizontal sections 141 of the terminals 14 (toward the lateral opening 116 ). When assembled, the grounding plate 401 of the coaxial cables 40 right presses the horizontal sections 1401 . This embodiment is applicable to those coaxial cables 40 which are arranged relatively loosely and have different grounding patterns.

The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.