Heat pipe and manufacturing method thereof

Abstract

A heat pipe consists of a heat conduction shell and a capillary structure. Its preparing method includes setting capillary structure in said shell, forming capillary structure by superposing screen mesh layer with particle layer, combining core bar surface with screen mesh, inserting core bar into said shell then filling micro powder in gas between said shell and screen mesh and sintering it with high temperature for obtaining product of heat pipe.

Description

【Technical field】 [0001] The invention relates to a heat pipe for heat transfer using the principle of phase change and a manufacturing method thereof. 【Background technique】 [0002] Due to its small size, the use of phase change latent heat to quickly transport a large amount of heat energy, uniform temperature distribution, simple structure, light weight, no external force, long life, low thermal resistance, long-distance transmission and other characteristics, the heat pipe meets the current heat dissipation requirements of the computer and other fields , so it is widely used to solve the heat dissipation problem. [0003] The driving principle of the heat pipe is to use the saturated working fluid contained in the capillary structure of the evaporation part to absorb the heat of the external heat source and evaporate. Due to the pressure difference generated by the steam, the steam moves quickly to the condensation part of the heat pipe and transfers heat, and finally c...

AI Technical Summary

Problems solved by technology

[0011] In order to improve the permeability of the condensed liquid in the capillary structure of the condensation part and solve the problem of the mandrel stripping during the sintering process, it is necessary to provide a heat pipe with the advantages of high capillary pressure and high permeability, and provide a heat pipe that can Heat pipe manufacturing method to solve the problem of mandrel stripping

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