Heat-pipe and preparation method
A heat pipe and tube shell technology, applied in the field of heat pipes and their preparation, can solve the problems of insufficient tightness, uniformity, unfavorable improvement of heat conduction efficiency of heat pipes, unsatisfactory capillary performance, etc., and achieve the effects of enhanced capillary performance, improved heat conduction efficiency, and uniform heat conduction.
Inactive Publication Date: 2005-06-15
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology
[0017] The technical problem to be solved by the present invention is that in the prior art, the heat pipe screen type liquid-absorbing core is not tightly and uniformly attached to the inner wall of the heat pipe shell, and the capillary performance 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 solve the above technical problems The problem is to provide a heat pipe with a liquid-absorbing core that can cling to the inner wall of the heat pipe shell and improve capillary performance and its preparation method
Method used
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[0027] Such as figure 2 As shown, the heat pipe 20 provided by the present invention includes a shell 21 , a capillary wick 22 and a working fluid (not shown), wherein the capillary wick 22 is a nano-copper fiber mesh.
[0028] The shell 21 is generally a hollow copper tube, and different materials such as aluminum, iron and other metals can also be used according to different needs. 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 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 centimeters.
[0029] In this embodiment, a copper tube with a circular radial cross-section is used, with a diameter of 10 mm and a length of 80 mm.
[0030] The working fluid includes liquids such as pure water, ammonia water, methanol, acetone, heptane, etc., and particles of heat...
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Abstract
The invention relates to a heat pipe and its preparation method. Said heat pipe includes a hollow pipe shell, capillary liquid-absorbing core close to the inner wall of pipe shell and working fluid which can be filled into the capillary liquid-absorbing core and is sealed in the inside of said pipe shell, in which the capillary liquid-absorbing core is made up by using nano copper fibre net. Said heat pipe has high heat-conducting efficiency, and is suitable for use in radiation device of electronic device.
Description
【Technical field】 [0001] The invention relates to a heat conduction structure, in particular to a heat pipe and a preparation method thereof. 【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...
Claims
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Inventor 黄全德黄文正
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD