Heat pipe

Abstract

A heat pipe, comprising a pipe body and at least one capillary structure disposed in the pipe body, the at least one layer of capillary structure includes a plurality of braided grids, the grids of the at least one layer of capillary structure are rhombus, each rhombus The grid has two opposite first included angles, and the two first included angles are less than 90 degrees. Compared with the prior art, the above-mentioned heat pipe has at least one layer of capillary structure grid set in a rhombus shape. When the working fluid in the tube flows along the edge of the grid, the path is replaced by the hypotenuse of the two right angles of the traditional square grid, shortening the working time. The return path of the fluid along the axial direction of the pipe body. At the same time, the first included angle of each grid is set to be less than 90 degrees. The continuous transition of the distance reduces the backflow resistance of the working fluid along the direction perpendicular to the line connecting the vertices of the two first included angles, and greatly improves the heat transfer efficiency of the working fluid along the axial direction, thereby improving the performance of the heat pipe.

Description

technical field [0001] The invention relates to a heat pipe, in particular to a heat pipe with a braided capillary structure. Background technique [0002] A heat pipe is a heat transfer component with high heat transfer capacity, fast heat transfer and high thermal conductivity. It can not only transfer a large amount of heat, but also consumes no power, so it is widely demanded by the heat dissipation market. The inner wall of the current heat pipe is equipped with a wick structure. The wick structure may be a braided mesh with capillary action, which facilitates the transmission of the working fluid in the heat pipe. With the thinning and thinning of electronic products, their heat dissipation requirements continue to increase, making the design of the capillary structure of ultra-thin heat pipes the key to evaluating the heat dissipation performance of electronic products. [0003] For heat pipes with a braided capillary structure, the traditional method in the industry...

AI Technical Summary

Problems solved by technology

[0003] For heat pipes with a braided capillary structure, the traditional method in the industry designs the capillary structure to be woven vertically, horizontally and vertically. This kind of capillary structure has a general efficiency in conducting the working fluid in the longitudinal direction and can only meet the needs of low-power heat pipes.

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