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Radiating structure of shell having stream guidance opening of microwave oven magnetron

A heat dissipation structure and magnetron technology, which are applied in the directions of magnetrons, collectors of transit time electron tubes, shells/containers of transit time electron tubes, etc. Insufficient air volume, etc.

Inactive Publication Date: 2010-02-10
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But, for the microwave oven magnetron of above-mentioned prior art, the air of forced flow of fan only blows in and blows out from two opposite side openings of magnetron upper casing 1, and the cooling air volume is insufficient, makes the magnetron heat dissipation and cooling efficiency Low

Method used

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  • Radiating structure of shell having stream guidance opening of microwave oven magnetron
  • Radiating structure of shell having stream guidance opening of microwave oven magnetron
  • Radiating structure of shell having stream guidance opening of microwave oven magnetron

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Embodiment Construction

[0020] Now in conjunction with the accompanying drawings, the present invention will be further described. figure 2 It is a structural schematic diagram of the microwave oven magnetron involved in the present invention. image 3 It is a top view of the microwave oven magnetron shell involved in the present invention.

[0021] Such as figure 2 and image 3 As shown, the housing of the microwave oven magnetron involved in the present invention is divided into upper and lower parts, the upper housing 1 is provided with a tube core, including a cathode and an anode 4, and the lower housing 2 is provided with a connecting device for the tube core and an external power supply. Connect with external power supply through power plug 3. Radiating fins 6 are arranged on the outside of the anode 4 , and the cooling fins 6 are plate-shaped aluminum sheets arranged alternately along the axial direction of the anode 4 . The cooling fins 6 surrounding the anode 4 are exposed to the outs...

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Abstract

The invention relates to a radiating structure of a shell having stream guidance openings of a microwave oven magnetron, which is characterized in that the lateral surface of the shell is provided with a plurality of stream guidance openings, and the lateral surface of the shell provided with the stream guidance openings comprises the lateral surfaces of an upper shell and a lower shell of the magnetron. A cutting piece for cutting the stream guidance openings extends outwards obliquely from the lateral surface of the shell; the stream guidance openings formed by the oblique outward extensionof the cutting piece face the direction of a fan; and the oblique outward extension of the cutting piece on the lateral surface of the shell along the blowing direction of the fan is gradually raised.Simultaneously, the lateral surface and the back surface of the shell on the lower part of the magnetron are provided with through holes, and the lateral surface of the shell on the lower part is over against the blowing direction of the fan. When the magnetron works, the air forced to flow by the fan can enter the shell of the magnetron from different directions and parts at the same time so asto enlarge an air flow passage, increase the radiating air quantity, and improve the radiating and cooling efficiency of the magnetron.

Description

technical field [0001] The invention relates to a magnetron of a microwave oven, in particular to a heat dissipation and cooling structure of the magnetron of a microwave oven. Background technique [0002] A microwave oven is a household appliance cooker that uses high-frequency microwaves to heat food. It heats and cooks food through the frictional heat generated by the violent vibration of food molecules under the action of high-frequency microwave radiation. When cooking in a microwave oven, the microwave penetrates the food and can heat the inside and outside at the same time, which has many advantages of high efficiency, fast speed and convenient application. Therefore, microwave ovens have gradually become widely used household appliances. The appearance of the microwave oven is in the shape of a cuboid, the front of the cuboid casing has a furnace door, and an operation key is arranged on one side of the furnace door. A furnace cavity is formed inside the shell, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J23/033H01J23/12H01J25/50F24C7/02
Inventor 王影
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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