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microwave heating device

A microwave heating device, microwave technology, applied in microwave heating, electric heating device, electric/magnetic/electromagnetic heating and other directions to achieve the effect of uniform heating distribution

Active Publication Date: 2016-09-28
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the electromagnetic field distribution (microwave distribution) of the microwave inside the heating chamber is not uniform, there is a problem that the object to be heated cannot be uniformly heated by microwaves.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0057] figure 1 It is a cross-sectional view showing a microwave oven that is a microwave heating device according to Embodiment 1 of the present invention. exist figure 1 Among them, 101 is a casing, 102 is an object to be heated, 103 is a heating chamber for accommodating the object to be heated 102, 104 is a mounting part for placing the object to be heated 103; 105 is a chamber for supplying microwaves to the heating chamber 103. A microwave supply part, 106 is a waveguide for transmitting microwaves supplied from the microwave supply part 105 to the heating chamber 103, 107 is a terminal end in the transmission direction in the waveguide 106 and is closed, and 108 is a waveguide for transmitting microwaves supplied from the microwave supply part 105 to the heating chamber 103. The heating chamber 103 is a microwave radiation unit that radiates microwaves propagating in the waveguide 106 . In addition, a glass plate is used for the mounting part 104, a magnetron is used ...

Embodiment approach 2

[0103] Hereinafter, a microwave heating device according to Embodiment 2 of the present invention will be described. The microwave heating device of the second embodiment differs from the microwave heating device of the first embodiment above in that a standing wave stabilizing unit is provided in the waveguide.

[0104] In the following description of the microwave heating device of Embodiment 2, components having the same functions and structures as those of the microwave heating device of Embodiment 1 are denoted by the same reference numerals, and the description of Embodiment 1 applies to the detailed description. In addition, the basic operations in Embodiment 2 are the same as those in Embodiment 1 described above, so in the following description, operations, functions, and the like that are different from those in Embodiment 1 will be described.

[0105] Figure 8 It is an explanatory diagram showing the arrangement of a standing wave stabilizing unit that is a standi...

Embodiment approach 3

[0114] Hereinafter, a microwave heating device according to Embodiment 3 of the present invention will be described. The microwave heating device according to the third embodiment differs from the microwave heating device according to the first embodiment described above in that the microwave radiation part has a configuration for emitting circularly polarized waves.

[0115] In the following description of the microwave heating device of Embodiment 3, the structural elements having the same functions and structures as those of the microwave heating devices of Embodiments 1 and 2 are given the same reference numerals, and the detailed description applies to those of the embodiments. 1 and Description of Embodiment 2. In addition, since the basic operations in Embodiment 3 are the same as those in Embodiments 1 and 2, in the following description, operations, functions, etc. that are different from those in Embodiments 1 and 2 will be described. .

[0116] Figure 9 The posi...

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PUM

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Abstract

In the microwave heating device of the present invention, a plurality of microwave radiation parts (108) are arranged in a manner to have a symmetrical axis at the tube wall of the waveguide opposite to the heating chamber, and the microwave transmitted in the waveguide (106) is at the end part ( 107) is reflected at 107) and a standing wave (303) is generated in the waveguide, the position where the waveguide wall current flowing through the tube wall generated by the standing wave intersects the opening of the microwave radiation part is symmetrical with respect to the symmetry axis .

Description

technical field [0001] The present invention relates to a microwave heating device such as a microwave oven, and more particularly to a microwave heating device characterized by a structure for radiating microwaves into a heating chamber. Background technique [0002] There is a microwave oven as a representative microwave heating device that heats an object to be heated using microwaves. In a microwave oven, microwaves generated by a microwave supply unit are radiated into a metal heating chamber, and an object to be heated inside the heating chamber is heated by the radiated microwaves. [0003] A magnetron is used as a microwave supply unit in a conventional microwave oven. Microwaves generated by the magnetron are radiated from the microwave radiation unit to the inside of the heating chamber via the waveguide. When the electromagnetic field distribution (microwave distribution) of the microwave inside the heating chamber is not uniform, there is a problem that the obj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/74H05B6/72
CPCH05B6/708
Inventor 贞平匡史细川大介吉野浩二大森义治信江等隆
Owner PANASONIC CORP