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Heat pipe

A technology of heat pipes and tube shells, which is applied in the field of heat conduction structures, can solve the problems of unsatisfactory capillary performance of heat pipe liquid-absorbing cores and unfavorable improvement of heat conduction efficiency of heat pipes, and achieve the effects of improving capillary performance, increasing surface tension coefficient, and improving heat conduction efficiency

Inactive Publication Date: 2005-06-08
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
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Problems solved by technology

[0020] The technical problem to be solved by the present invention is that the capillary performance of the liquid-absorbing core of the heat pipe in the prior art is not ideal enough, which is not conducive to the improvement of the heat conduction efficiency of the heat pipe; the purpose of the present invention is to provide a heat pipe with improved capillary performance of the liquid-absorbing core

Method used

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no. 1 approach

[0026] Such as figure 2 As shown, the heat pipe 20 provided by the present invention includes a shell 21 , a wick 24 with a capillary structure, and a working fluid (not shown), wherein the wick 24 includes a hydrophilic material 23 formed on the surface of the wick 24 .

[0027] The tube shell 21 is generally a copper tube, and different materials can also be used according to different needs, such as aluminum, steel, carbon steel, stainless steel, iron, nickel, titanium, etc. and their alloys. The radial cross section of the shell 21 can be a standard circle, or a special shape, such as ellipse, square, rectangle, triangle, etc. The tube shell 21 can be a straight tube, or any other curved tube. The diameter of the pipe is 2 mm to 200 mm, and the length of the pipe can range from a few millimeters to tens of meters.

[0028] In this embodiment, a copper tube with a circular radial cross-section is used, with a diameter of 4 mm and a length of 50 mm.

[0029] The wick 22 ...

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Abstract

The invention relates to a heat pipe which includes a hollow pipe shell, solution absorption core stick to the inner wall of the shell: with filled liquid. There is a larger of hydrophilic material on the surface of solution absorption core , which can increase the coefficient of surface tension of solution absorption core, resulting in increased the efficiency of heat pipe. The heat pipe supplied by the invention with high efficiency of heat pipe , is suitable for heat sink device in electric instrument.

Description

【Technical field】 [0001] The invention relates to a heat conduction structure, in particular to a heat pipe. 【Background technique】 [0002] The heat pipe is a heat conduction component that relies on the phase change of its internal working fluid to conduct heat. It has excellent characteristics such as high thermal conductivity and excellent isothermal property, and has good heat conduction effect and is widely used. [0003] In recent years, the rapid development of electronic technology, the high frequency and high speed of electronic devices and the density and miniaturization of integrated circuits have caused a sharp increase in the heat generation of electronic devices per unit volume. Heat pipe technology is suitable for solving current electronic problems due to its high efficiency, compactness, flexibility and reliability. The heat dissipation problem derived from the performance improvement of the device. [0004] Such as figure 1 As shown, a typical heat pipe ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/04
Inventor 简扬昌
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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