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Device and method for reducing noise of microwave oven

A microwave oven, noise technology, applied in the field of microwave ovens, reducing noise during operation, can solve the problem of low heat dissipation efficiency, achieve the effect of improving heat dissipation efficiency, reducing noise, and solving mechanical noise

Inactive Publication Date: 2010-04-21
成都艾迈计算机辅助工程有限责任公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of this air-cooled system are simple structure, space saving, and low cost, but the heat dissipation efficiency is low, and because of the mechanical cooling method, the operation of the fan has become a major source of noise in the microwave oven.

Method used

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  • Device and method for reducing noise of microwave oven
  • Device and method for reducing noise of microwave oven
  • Device and method for reducing noise of microwave oven

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Embodiment Construction

[0012] see Figure 1 to Figure 3 As shown, the cooling fan in the microwave oven is mainly designed for cooling the magnetron. When the microwave oven is working, the high-voltage electricity generated by the transformer is transmitted to the cathode filament of the magnetron. As the filament heats up, it emits electrons, which are attracted to the positively charged anode plate of the outer magnetron. A magnetic field exerted by some large magnet blocks spins the outwardly flowing electron cloud. As it spins, electron clouds form spokes that pass through each cavity between the anode plates. The moving electron cloud "spokes" transfer negative charges to the cavity, which then flows out of the cavity before the next "spoke" arrives. The repeated increase and decrease of negative charge creates an oscillating electromagnetic field at 2.45 gigahertz in the cavity. The antenna on the magnetron resonates at this frequency, emitting microwaves from its top tip. In this proces...

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Abstract

The invention relates to a device and a method for reducing noise of a microwave oven. The device comprises an oil cooling system used for cooling anodes of magnetrons in the microwave oven. In the method, the oil cooling system is adopted to replace an air cooling system and perform radiating treatment on the magnetrons in the microwave oven. In the device and the method, the oil cooling system is adopted to replace the air cooling system; and compared with the air cooling system, the oil cooling system has higher radiating efficiency and radically solves the problem of mechanical noise of a fan so as to greatly reduce the noise when the microwave oven works.

Description

technical field [0001] The invention belongs to the technical field of household appliances, and in particular relates to a method for reducing noise during operation in a microwave oven. Background technique [0002] A household microwave oven is a household appliance used to heat food. It is very convenient for quickly heating food. It is not only used at home, but also in offices. The structure of existing microwave oven see figure 1 As shown, one of the main sources of its noise is the fan: the magnetron generates a lot of heat during the process of converting electrical energy into microwaves; Heat is also generated during the process. At present, the heat dissipation system of common microwave ovens adopts an air-cooling system, that is, a cooling fan is installed next to the magnetron to take out the heat generated by the magnetron at any time. The advantages of this air-cooled system are simple structure, space saving, and low cost, but the heat dissipation effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C7/02F24C15/00
Inventor 刘勇谋张清泉陈代巽方宁
Owner 成都艾迈计算机辅助工程有限责任公司
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