A microwave heating apparatus comprising:na microwave generation part having a plurality of output parts;a heating chamber to contain an object to be heated;a plurality of doors for containing the object to be heated, each of the plurality of doors being provided in a wall surface of the heating chamber;a plurality of feeding parts supplying outputs of the plurality of output parts to the heating chamber, the feeding parts being provided on opposed wall surfaces of the heating chamber that have no door; anda control part controlling microwave radiation from the plurality of feeding parts to control an electromagnetic wave distribution in the heating chamber.
›2.↳ 1The microwave heating apparatus according to claim 1, whereinnthe control part is constituted to select the feeding part radiating a microwave from am…d2
The microwave heating apparatus according to claim 1, whereinnthe control part is constituted to select the feeding part radiating a microwave from among the plurality of feeding parts so as to concentrate the microwave on the object to be heated contained in the heating chamber.
›3.↳ 1The microwave heating apparatus according to claim 1, whereinnthe control part is constituted to control a phase difference between the feeding parts …d2
The microwave heating apparatus according to claim 1, whereinnthe control part is constituted to control a phase difference between the feeding parts radiating a microwave so as to concentrate the microwave on the object to be heated contained in the heating chamber.
›4.↳ 1The microwave heating apparatus according to claim 1, whereinnthe microwave generation part has one or more oscillation parts generating a microwave.d2
The microwave heating apparatus according to claim 1, whereinnthe microwave generation part has one or more oscillation parts generating a microwave.
›5.↳ 1The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, an…d2
The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, and a power distribution part distributing the microwave output of the oscillation part to a plurality of microwave outputs, and wherein the plurality of output parts output the microwave outputs of the power distribution part.
›6.↳ 1The microwave heating apparatus according to claim 1, whereinnthe heating chamber is provided with a partition unit dividing the heating chamber into …d2+9
The microwave heating apparatus according to claim 1, whereinnthe heating chamber is provided with a partition unit dividing the heating chamber into a plurality of spaces, and the microwave is concentrated on an object to be heated contained in each of the spaces of the divided heating chamber.
›7.↳ 6The microwave heating apparatus according to claim 6, whereinnthe partition unit divides the heating chamber into an upper space and a lower space and…d3+1
The microwave heating apparatus according to claim 6, whereinnthe partition unit divides the heating chamber into an upper space and a lower space and comprises a metal plate on which the object to be heated can be set.
›8.↳ 7The microwave heating apparatus according to claim 7, whereinna peripheral part of the metal plate is formed of an insulating material to prevent a sp…d4
The microwave heating apparatus according to claim 7, whereinna peripheral part of the metal plate is formed of an insulating material to prevent a spark from being generated between a wall surface of the heating chamber and the metal plate.
›9.↳ 6The microwave heating apparatus according to claim 6, whereinnthe microwave generation part has a plurality of oscillation parts generating the microw…d3
The microwave heating apparatus according to claim 6, whereinnthe microwave generation part has a plurality of oscillation parts generating the microwaves, and each of the different oscillation parts is provided in each of the spaces of the divided heating chamber, respectively.
›10.↳ 6The microwave heating apparatus according to claim 6, whereinnthe microwave generation part has a plurality of oscillation parts generating the microw…d3
The microwave heating apparatus according to claim 6, whereinnthe microwave generation part has a plurality of oscillation parts generating the microwaves, and each of the different oscillation parts is provided in each space, respectively, of the divided heating chamber, and an oscillation frequency of each oscillation part is varied independently.
›11.↳ 6The microwave heating apparatus according to claim 6, whereinna heating time is optionally set for each of the plurality of spaces of the heating cham…d3
The microwave heating apparatus according to claim 6, whereinna heating time is optionally set for each of the plurality of spaces of the heating chamber.
›12.↳ 6The microwave heating apparatus according to claim 6, whereinnthe heating chamber is provided with a temperature detection sensor remotely observing a…d3+1
The microwave heating apparatus according to claim 6, whereinnthe heating chamber is provided with a temperature detection sensor remotely observing a heated state of the object to be heated contained in each of the plurality of spaces in the heating chamber, and heating is stopped at a predetermined target temperature.
›13.↳ 12The microwave heating apparatus according to claim 12, whereinnan operation is performed in a sequence such that a heated state of the object to be he…d4
The microwave heating apparatus according to claim 12, whereinnan operation is performed in a sequence such that a heated state of the object to be heated is detected by the temperature detection sensor, and heating is stopped at the predetermined target temperature, and the operation is performed in the different sequence based on the object to be heated individually.
›14.↳ 6The microwave heating apparatus according to claim 6, whereinnthe plurality of doors are provided for the plurality of spaces, respectively, of the he…d3+1
The microwave heating apparatus according to claim 6, whereinnthe plurality of doors are provided for the plurality of spaces, respectively, of the heating chamber, for containing plural objects to be heated in the plurality of spaces, respectively.
›15.↳ 14The microwave heating apparatus according to claim 14, whereinnwhen any one of the plurality of doors is open, microwave radiation to the space of the…d4
The microwave heating apparatus according to claim 14, whereinnwhen any one of the plurality of doors is open, microwave radiation to the space of the heating chamber for which the open door is provided is stopped.
›16.↳ 1The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, a …d2
The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, a power distribution part distributing the microwave output of the oscillation part to a plurality of microwave outputs, and amplifiers amplifying the microwave outputs of the power distribution part, and wherein the plurality of output parts output the outputs of the amplifiers, andthe heating chamber is provided with a partition unit dividing the heating chamber into at least two spaces, and the microwave is concentrated on an object to be heated contained in each of the spaces of the divided heating chamber by the plurality of feeding parts.
›17.↳ 1The microwave heating apparatus according to claim 1, whereinnthe heating chamber is provided with a partition unit dividing the heating chamber into …d2
The microwave heating apparatus according to claim 1, whereinnthe heating chamber is provided with a partition unit dividing the heating chamber into at least two spaces, including a right space and a left space, or an upper space and a lower space, and the microwave is concentrated on an object to be heated contained in each of the spaces of the heating chamber by the plurality of feeding parts.
›18.↳ 1The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, a …d2+2
The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, a power distribution part distributing the microwave output of the oscillation part to a plurality of microwave outputs, and a power detection part detecting a reflected power from the feeding parts, and wherein the plurality of output parts output the microwave outputs of the power distribution part,the control part is constituted so as to radiate a microwave from the feeding part to an object to be heated at an output lower than a microwave output at the time of heating operation, vary a frequency generated from the oscillation part, to detect a frequency of a case where the reflected power detected by the power detection part shows a smallest value or a minimum value, and determine a microwave frequency at the time of heating operation based on the detected frequency before the object to be heated is heated, andwhen the reflected power detected by the power detection part exceeds a predetermined threshold value during the heating operation while the microwave output at the time of heating operation is generated from the oscillation part at the determined microwave frequency, the control part is constituted to reduce the microwave power output from the oscillation part once, sweep the microwave frequency generated from the oscillation part, detects a frequency of a case where a reflected power detected by the power detection part again shows a smallest or minimum value, and resume the heating operation at the frequency of a case where the reflected power shows the smallest or minimum value.
›19.↳ 18The microwave heating apparatus according to claim 18, whereinnthe control part is constituted to minimally increase or decrease the microwave frequen…d3
The microwave heating apparatus according to claim 18, whereinnthe control part is constituted to minimally increase or decrease the microwave frequency generated from the oscillation part during the heating operation, and slightly increase or decrease the microwave frequency generated from the oscillation part in a direction such that the reflected power detected by the power detection part is decreased.
›20.↳ 18The microwave heating apparatus according to claim 18, whereinnthe control part is constituted to radiate the microwave from the feeding part to the o…d3
The microwave heating apparatus according to claim 18, whereinnthe control part is constituted to radiate the microwave from the feeding part to the object to be heated at the output lower than the microwave output at the time of heating operation, and vary the frequency of the microwave from the oscillation part to detect a plurality of frequencies of cases where the reflected powers detected by the power detection part show minimum values, before the object to be heated is heated, andthe heating operation is performed at the frequency of a case where the detected reflected power shows a first minimum value, and when the reflected power detected by the power detection part exceeds a predetermined value, the oscillation part generates the frequency of a case where the detected reflected power shows a second minimum value detected before the heating operation.
›21.↳ 1The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises a plurality of oscillation parts generating the …d2
The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises a plurality of oscillation parts generating the microwave, and a power distribution part distributing the microwave output of the oscillation part to a plurality of microwave outputs, and wherein the plurality of output parts output the microwave outputs of the power distribution part,the plurality of oscillation parts are paired with the feeding parts radiating the microwaves, andthe control part is constituted to control the oscillation parts separately such that the frequency of the microwave radiated from each of the feeding part becomes a frequency of a case where a reflected power from each of the feeding parts shows a smallest value or a minimum value.
›22.↳ 1The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, a …d2
The microwave heating apparatus according to claim 1, whereinnthe microwave generation part comprises an oscillation part generating the microwave, a power distribution part distributing the microwave output of the oscillation part to a plurality of microwave outputs, and a power detection part detecting a reflected power from the feeding parts and an incident power transmitted from the oscillation part, and wherein the plurality of output parts output the microwave outputs of the power distribution part,the control part is constituted to radiate a microwave from the feeding parts to an object to be heated at an output lower than a microwave output at the time of heating operation, vary a frequency generated from the oscillation part, to detect a frequency of a case where a ratio between a reflected power detected by the power detection part and an incident power shows a smallest value or a minimum value, and determine a microwave frequency at the time of heating operation based on the detected frequency before the object to be heated is heated, andwhen the determined microwave output at the time of heating operation is generated from the oscillation part, the control part is constituted to minimally increase or decrease the microwave frequency generated from the oscillation part during the heating operation, and slightly increase or decrease the microwave frequency generated from the oscillation part in a direction such that the ratio between reflected power detected by the power detection part and the incident power is decreased.
›23.↳ 1The microwave heating apparatus according to claim 1, whereinnthe heating chamber is provided with a partition unit having an electric wave shielding …d2+3
The microwave heating apparatus according to claim 1, whereinnthe heating chamber is provided with a partition unit having an electric wave shielding function to partition the heating chamber into a plurality of spaces, andthe plurality of feeding parts are arranged at each of the plurality of spaces partitioned in the heating chamber, and optionally selected.
›24.↳ 23The microwave heating apparatus according to claim 23, whereinnthe plurality of feeding parts are provided at each space of the heating chamber, and a…d3
The microwave heating apparatus according to claim 23, whereinnthe plurality of feeding parts are provided at each space of the heating chamber, and arranged on a plurality of different wall surfaces constituting each space of the heating chamber.
›25.↳ 23The microwave heating apparatus according to claim 23, whereinnthe heating chamber has two spaces, the two feeding parts are arranged at the space so …d3
The microwave heating apparatus according to claim 23, whereinnthe heating chamber has two spaces, the two feeding parts are arranged at the space so as to be opposed, and phases of the microwaves radiated from the two feeding parts are varied.
›26.↳ 23The microwave heating apparatus according to claim 23, whereinnthe heating chamber has two spaces, the two feeding parts are arranged at the space suc…d3
The microwave heating apparatus according to claim 23, whereinnthe heating chamber has two spaces, the two feeding parts are arranged at the space such that the radiated microwaves intersect with each other, and phases of the microwaves radiated from the two feeding parts are varied.
›27.↳ 1The microwave heating apparatus according to claim 1, whereinnthe doors are provided in opposed wall surfaces of the heating chamber.d2
The microwave heating apparatus according to claim 1, whereinnthe doors are provided in opposed wall surfaces of the heating chamber.
›28.↳ 1The microwave heating apparatus according to claim 1, whereinnthe feeding parts receive the microwaves from a common oscillation part.d2
The microwave heating apparatus according to claim 1, whereinnthe feeding parts receive the microwaves from a common oscillation part.
