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Microwave processing apparatus

A microwave processing and microwave technology, which is applied in the field of microwave processing devices, can solve problems such as inability to uniformly heat objects, and achieve the effects of reducing calorific value and preventing damage and failure

Active Publication Date: 2009-08-05
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Here, when the electromagnetic wave distribution of the microwave inside the heating chamber is not uniform, the object cannot be heated uniformly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0068] (1-1) Structure and working overview of microwave oven

[0069] figure 1 It is a block diagram showing the structure of the microwave oven of 1st Embodiment. Such as figure 1 As shown, the microwave oven 1 of this embodiment includes a microwave generator 100 and a casing 501 . Three antennas A1 , A2 , A3 are arranged in the casing 501 .

[0070] In the present embodiment, two of the three antennas A1 , A2 , A3 in the casing 501 are arranged so as to face each other in the horizontal direction.

[0071] The microwave generating device 100 includes: a voltage supply part 200; a microwave generating part 300; a power divider 350; three phase converters 351a, 351b, 351c having the same structure; three microwave amplifying parts 400, 410, 420 having the same structure; Three reflected power detection devices 600 , 610 , 620 having the same structure; and a microcomputer 700 . The microwave generating device 100 is connected to an industrial power supply through a powe...

no. 2 approach

[0225] The microwave oven of the second embodiment is different from the microwave oven 1 of the first embodiment in the following points.

[0226] (2-1) Structure and working overview of microwave oven

[0227] Figure 13 It is a block diagram showing the structure of the microwave oven of 2nd Embodiment. Such as Figure 13 As shown, the structure of the microwave generator 100 of the microwave oven 1 of the second embodiment is different from that of the microwave oven 1 of the first embodiment ( figure 1 ).

[0228] In the microwave oven 1 of the present embodiment, the microwave generating device 100 includes: a voltage supply part 200; two microwave generating parts 300, 310 having the same structure; a power divider 360; two phase changers 351a, 351b having the same structure; Three microwave amplifiers 400 , 410 , 420 with the same structure; three reflected power detection devices 600 , 610 , 620 with the same structure; and the microcomputer 700 .

[0229] Here, ...

no. 3 approach

[0242] The microwave oven of the third embodiment is different from the microwave oven 1 of the first embodiment in the following points.

[0243] (3-1) Structure and working overview of microwave oven

[0244] Figure 14 It is a block diagram showing the structure of the microwave oven of 3rd Embodiment. Such as Figure 14 As shown, the structure of the microwave generator 100 of the microwave oven 1 of the third embodiment is different from that of the microwave oven 1 of the first embodiment ( figure 1 ).

[0245] In the microwave oven 1 of the present embodiment, the microwave generating device 100 includes: a voltage supply part 200; a microwave generating part 300; three power dividers 350A, 350B, 350C having the same structure; four phase changers 351a, 351b having the same structure , 351c, 351d; four microwave amplifiers 400, 410, 420, 430 with the same structure; four reflected power detection devices 600, 610, 620, 630 with the same structure; and the microcompu...

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Abstract

A microwave oven includes a microwave generating device and a case. In the case, three antennas are arranged. The two antennas are arranged to face each other in the horizontal direction. In the microwave generating device, microwaves generated by a microwave generating section are distributed substantially equally to phase changers by a power distributer. Each of the phase changers adjusts the phase of the given microwave. Thus, a phase difference between the microwaves radiated from the two facing antennas is changed, and the microwaves are radiated.

Description

technical field [0001] The present invention relates to a microwave processing device for processing an object using microwaves. Background technique [0002] There is a microwave oven as an apparatus for processing an object using microwaves. In a microwave oven, microwaves generated by a microwave generator are emitted into a metal heating chamber. Thereby, the object arranged inside the heating chamber is heated by microwaves. [0003] Conventionally, magnetrons have been used as microwave generators for microwave ovens. In this case, microwaves generated by the magnetron are supplied to the inside of the heating chamber through the waveguide. [0004] Here, if the electromagnetic wave distribution of the microwave inside the heating chamber is not uniform, the object cannot be heated uniformly. Therefore, there has been proposed a microwave oven in which microwaves generated by a magnetron are supplied to the inside of a heating chamber through first and second waveg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/74
CPCH05B6/705H05B2206/044H05B6/72H05B6/686
Inventor 信江等隆三原诚安井健治
Owner PANASONIC CORP
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