Microwave shield plate of microwave oven door

A technology for shielding plates and microwave ovens, which can be used in household stoves/stoves, household heating, lighting and heating equipment, etc. It can solve the problems of high cost and difficult processing of microwave shielding structures, and achieve low manufacturing costs, simple structure, and difficult processing small effect

Inactive Publication Date: 2013-06-26
申偲伯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of difficult processing and high cost of the microwave shielding structure in the existing microwave oven door, and provide a new microwave shielding plate structure and manufacturing method

Method used

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  • Microwave shield plate of microwave oven door
  • Microwave shield plate of microwave oven door
  • Microwave shield plate of microwave oven door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The schematic diagram of the structure of the microwave shielding plate in the first embodiment of the present invention and the schematic diagram of its relative position in contact with the metal furnace mouth of the microwave oven door are shown in Figure 2, wherein: Figure 2a Before the microwave shielding plate is pressed against the metal furnace mouth, that is: before the furnace door is closed, Figure 2b After the microwave shielding plate and the metal furnace mouth are pressed together, that is, after the furnace door is closed. The microwave shielding plate 21 of this embodiment is selected from an aluminum alloy plate with elastic and plastic deformation capabilities, and the thickness of the plate is 1mm. The surrounding of the shielding plate adopts a rectangular opening structure. The opening width A of the rectangular opening 22 is 3mm, and the opening depth is 20mm. Adjacent openings The width of the rectangular protrusions 23 between them (that is: t...

Embodiment 2

[0029] The structure diagram of the microwave shielding plate of the microwave oven door described in the second embodiment of the present invention is as follows: image 3shown. The microwave shielding plate of this embodiment is made of 304 stainless steel plate with elastic and plastic deformation ability, and the thickness of the plate is 1mm. The surrounding of the shielding plate adopts a rectangular opening structure, the opening width C is 2mm, the opening depth D is 12mm, and the corners of the rectangular opening are rounded. Arc structure, the arc radius R is 1mm, and the rectangular protrusions between adjacent openings adopt two sizes, namely: the width E of the rectangular protrusions (ie: the opening distance E) is 2 mm, and the width F of the rectangular protrusions (ie: the opening distance E) is 2 mm. The distance F) is 10mm. The outer dimension of the microwave shielding plate is 10mm larger than the size of the metal furnace mouth of the microwave oven. Th...

Embodiment 3

[0031] The structural schematic diagram of the microwave shielding plate of the microwave oven door described in the third embodiment of the present invention is as follows Figure 4 shown. The microwave shielding plate in this embodiment is made of 304 stainless steel plate with elastic and plastic deformation ability, the thickness of the plate is 0.8mm, and two opening structures of rectangle and isosceles trapezoid are adopted around the shielding plate. The width G of the rectangular opening is 2mm, the opening depth H is 12mm, the corners of the rectangular opening adopt a circular arc structure, the radius R of the circular arc is 1mm, and the width I of the rectangular protrusions between adjacent openings (that is: opening distance I) is 2mm. The upper bottom dimension J of the isosceles trapezoidal opening is 2mm, the lower bottom dimension K is 4mm, and the opening depth L is 12mm. The outer dimension of the microwave shielding plate is 12mm larger than the size of...

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Abstract

The invention discloses a microwave shield plate of a microwave oven door, and belongs to the technical field of microwave shield. The microwave shield plate is mainly characterized in that the periphery of the shield plate has an opening structure, each opening is an arbitrary shape, the size of each opening is that the width of the opening is greater than 0.5 mm and is less than 10 mm, optimally, the width of the opening is greater than 1 mm and is less than 4 mm, the opening depth and opening distance are determined to ensure that a bulge between any two adjacent openings is in close contact with the edge of a metal oven hole or the small plane of the edge of the metal oven hole, and the depth of the openings in the periphery of the shield plate in the metal oven hole is smaller than 25mm. The microwave shield plate with the characteristics can effectively shield microwave to prevent microwave leakage, a shield effect can achieve an ambient level, the zero leakage is realized, and the microwave shield plate has the notable advantages of simple structure and low manufacturing cost. The microwave shield plate provided by the invention is widely used by household microwave ovens and microwave instruments for laboratories and microwave shield and leakage prevention of microwave equipment for industries.

Description

technical field [0001] The invention belongs to the technical field of microwave blocking and shielding, and in particular relates to a microwave shielding plate for a microwave oven door, which can effectively prevent microwave leakage in the microwave oven. Background technique [0002] As a new type of energy-saving and environmentally friendly heating method, microwave energy is known as "the second flame of mankind", and it has been more and more used in heating fields, such as: food, papermaking, wood, sintering and so on. The microwaves used in actual heating are usually electromagnetic waves with frequencies of 915MHz and 2450MHz. The simple principle of microwave heating is that the polarization of the alternating electromagnetic field causes the free charges inside the material to rearrange and the dipoles to rotate repeatedly, resulting in strong vibration and friction. In this microscopic process, the alternating electromagnetic field The energy is converted int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/36
Inventor 申玉田赵金跃申偲伯徐艳姬王玺龙张猛李强
Owner 申偲伯
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