Cooling device and method with function of noise reduction

A technology of a cooling device and a cooling method, which is applied in the field of computers, household appliances or electrical equipment, can solve the problems of increasing system energy consumption and low heat dissipation efficiency, and achieve the effects of improving cooling efficiency, improving heat dissipation efficiency, and reliable operation

Active Publication Date: 2013-10-02
成都艾迈计算机辅助工程有限责任公司
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  • Summary
  • Abstract
  • 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 main source of noise in the microwave oven, and the fan itself is also a major source of noise. It will increase the energy consumption of the system, which is an active cooling method

Method used

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  • Cooling device and method with function of noise reduction
  • Cooling device and method with function of noise reduction
  • Cooling device and method with function of noise reduction

Examples

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Embodiment 1

[0026] This embodiment is a cooling method for reducing noise. The method uses magnetic / non-magnetic fluid as the heat dissipation medium, and the component to be cooled and the heat dissipation medium transfer heat to the magnetic / non-magnetic fluid through heat exchange. The magnetic / non-magnetic fluid is composed of Curie The temperature effect conducts heat through heat exchange. The magnetic fluid is composed of particles with permanent magnetism dispersed in the fluid; the non-magnetic fluid is composed of particles with magnetic properties dispersed in the fluid. That is to say, this embodiment includes two technical solutions. When the component to be cooled is non-magnetic, the magnetic fluid is used as the heat dissipation medium. The component to be cooled and the heat dissipation medium transfer heat to the magnetic fluid through heat exchange, and the magnetic fluid passes heat through the Curie temperature effect. After the exchange, the heat is transferred out to...

Embodiment 2

[0031] This embodiment is the application of the cooling method of the present invention in cooling the microwave oven magnetron, that is, a method for reducing the noise of the microwave oven. Since the magnetron is not magnetic during operation, the method uses a magnetic fluid cooling system instead of air cooling ( oil cooling) system to dissipate heat from the magnetron in the microwave oven. The magnetic fluid cooling system covers the magnetron with a fluid channel with thermal conductivity, and the heat of the magnetron is conducted from the magnetic fluid in the fluid channel after convective circulation . In this embodiment, the Curie temperature of the magnetic powder is lower than the heat-resistant temperature of the magnetron, and the magnetic fluid is composed of particles with permanent magnetism dispersed in the fluid.

Embodiment 3

[0033] This embodiment is the application of cooling device of the present invention in cooling microwave oven magnetron, see figure 1 As shown, the cooling fan in the prior art microwave oven is mainly designed for the cooling of the magnetron. Traditionally, forced air cooling (see figure 1 structure).

[0034] In order to avoid the disadvantages of high mechanical noise and low heat dissipation efficiency generated by the fan during operation, the following solutions are proposed.

[0035] Such as figure 2 , image 3 As shown, the scheme cancels the fan, and surrounds the magnetron 10 with a fluid channel 11 with better thermal conductivity. Since the magnetron 10 is not magnetic, a magnetic fluid is provided in the fluid channel 11. The magnetic fluid is composed of particles with permanent magnetism dispersed in the fluid. The heat of the magnetron 10 can be effectively and quickly conducted out through the magnetic fluid in the fluid channel 11, with high heat dissi...

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Abstract

The invention relates to a cooling device and method with the function of noise reduction. The method is characterized in that in case a component to be cooled is nonmagnetic, a magnetic fluid serves as a radiating medium; a nonmagnetic fluid serves as the radiating medium until the component to be cooled is magnetic; the heat is transferred to the magnetic fluid or the nonmagnetic fluid through the heat exchange between the component to be cooled and the radiating medium, and based on Curie temperature effect, the magnetic fluid or the nonmagnetic fluid transfers heat out to achieve thermal balance after being subjected to heat exchange. The cooling device comprises a container containing the magnetic fluid or the nonmagnetic fluid, the component to be cooled is placed in the container and is in direct contact with the magnetic fluid or the nonmagnetic fluid; the magnetic fluid is formed in a way that permanent magnetic particles are dispersed in the fluid, while the nonmagnetic fluid is formed in a way that magnetic particles are dispersed in the fluid. The device and the method utilize the characteristic that the Curie temperature is the inherent attribute of the magnetic material, and as a result, the cooling effect of a magnetron is improved, as well as the control automation and reliability.

Description

technical field [0001] The invention belongs to the field of computers, household appliances or electrical equipment, and in particular relates to a cooling device and method for reducing noise. Background technique [0002] In computers, household appliances or electrical equipment, many components will generate heat during operation. If the components cannot be dissipated in time or the heat dissipation effect is poor, the service life of the heating components may be affected, and the heating components may even be damaged. Thus causing the entire system to fail. [0003] In the prior art, there are usually several heat dissipation methods for heat-generating components: 1. Natural cooling: Expose the heat-generating components to the air, and naturally dissipate heat through convection with the air. This cooling method has poor cooling effect, and the heat-generating components are exposed It is not safe in the air, and it is easy to vacuum, and it is not easy to clean ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20F25B21/00
CPCY02B30/00
Inventor 刘勇谋
Owner 成都艾迈计算机辅助工程有限责任公司
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