Heat pipe

A heat pipe and capillary structure technology, applied in the field of heat pipes, can solve the problems of large capillary force, accelerated working fluid circulation, and large capillary force, etc., to increase the total contact surface area, increase heat transfer, and accelerate circulation. The effect of heat transfer

Inactive Publication Date: 2006-09-27
FU ZHUN PRECISION IND SHENZHEN +1
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Problems solved by technology

[0007] In order to solve the problem that the above-mentioned single-type capillary structure cannot take into account the small fluid return resistance and the large capillary force for the working liquid at the same time, and cannot provide an effective heat conduction path between the external heat source and the working liquid in the tube at the same time, there is a It is necessary to provide a heat pipe so that it can take into account the small fluid return resistance and the large capillary force for the working liquid at the same time, accelerate the circulation of the working liquid in the pipe, increase the heat transfer, and can simultaneously heat the external heat source and the inside of the pipe. Provides an efficient heat conduction path between the working fluids

Method used

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Embodiment Construction

[0021] In view of the fact that a single type of capillary structure in the existing heat pipe cannot achieve the optimization of the heat transfer performance of the heat pipe, the present invention changes the capillary structure inside the heat pipe to a combination of different types of capillary structures, that is, the evaporation section and the condensation section of the heat pipe are provided with different Types of capillary structures, such as figure 2 Shown is a preferred embodiment of the heat pipe of the present invention. The heat pipe 20 sequentially forms a condensation section C, an adiabatic section B, and an evaporation section A along the length direction of the housing 22, wherein the condensing section C and the adiabatic section B adopt grooved capillary structure, such as image 3 As shown, it is formed by a number of small axial grooves 241; the evaporation section A adopts a sintered capillary structure, such as Figure 4A As shown, the sintered p...

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Abstract

The invention relates to a heat pipe, which comprises a vaporizing section and a condensing section, which have different capillary structures, and the capillary structure of vaporizing section has smaller effective capillary holes, to generate small reflux resistance of condensed liquid in the condensing section, and generate large capillary function force on the liquid at the vaporizing section, to accelerate the reflux of condensing liquid from the condensing section to the vaporizing section. And the capillary structure of vaporizing section has smaller space to increase the contact area, to apply the heat transmission between the outer heat resource and the tube.

Description

【Technical field】 [0001] The invention relates to the field of heat dissipation, in particular to a heat pipe for transferring heat. 【Background technique】 [0002] In the existing field of heat dissipation, heat pipes are widely used due to their fast heat transfer characteristics. They use the principle that the working fluid in the shell absorbs or releases a large amount of heat when the gas and liquid phases are transformed. The inner wall of the shell is usually A capillary structure (Capillary Wick Structure) is provided to facilitate the reflux of the condensed liquid. The function of the capillary structure is mainly to provide the driving force required for the rapid reflux of the condensed liquid on the one hand, and to provide the connection between the inner wall of the shell and the liquid-gas interface in the shell on the other hand. heat conduction path. At present, the commonly used capillary structures mainly include wire mesh, sintered powder and groove. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/04
Inventor 张长生王肇浩
Owner FU ZHUN PRECISION IND SHENZHEN
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