Flat plate heat pipe and manufacturing method thereof

Abstract

The invention relates to a manufacturing method of a flat plate heat pipe. The manufacturing method comprises the following steps of: providing a first metal sheet body; providing a plurality of spherical supporting bodies and a second metal sheet body, wherein the second metal sheet body comprises a base plate and a side plate extending from the base plate; arranging the spherical supporting bodies on the base plate of the second metal sheet; and folding the first metal sheet body and the second metal sheet body, and performing diffusion welding on the first metal sheet body and the second metal sheet body so that the first metal sheet body and the second metal sheet body are in sealing connection with each other, and the spherical supporting bodies are clamped between the first metal sheet body and the base plate of the second metal sheet body and directly pressed against the first metal sheet body and the base plate of the second metal sheet body. The flat plate heat pipe comprises a flat plate shell which comprises a base plate and a top plate opposite to the base plate; and at least one spherical supporting body is clamped between the base plate and the top plate. The supporting bodies in the invention are spherical, easy to manufacture and free of direction, can be conveniently arranged in the shell and easily combined with the shell without falling, so the flat plate heat pipe has stable performance.

Description

technical field [0001] The invention relates to a heat pipe and a manufacturing method thereof, in particular to a flat heat pipe and a manufacturing method thereof. Background technique [0002] With the continuous development of the electronic information industry, the integration of electronic products is getting higher and higher, and the heat emitted by the electronic components in it is also increasing. The industry usually uses flat heat pipes for heat dissipation of electronic components. This flat heat pipe usually includes a metal shell, a capillary structure attached to the inner surface of the metal shell, a supporting body supporting the metal shell, and an appropriate amount of working medium injected into the metal shell. The current mainstream supports are cylindrical metal rods. The main problems of using this kind of support body are as follows: because the two ends of the support body usually need to be chamfered, it is troublesome to manufacture; and th...

AI Technical Summary

Problems solved by technology

The main problems of using this kind of support body are as follows: because the two ends of the support body usually need to be chamfered, it is troublesome to manufacture; and this kind of support body is directional, and it is difficult to assemble it with the sintering mold before the capillary structure is sintered, which consumes manpower; The height tolerance of the support body is difficult to control, which usually leads to poor sintering bonding force between some support bodies and the metal shell, and it is easy to fall off in the subsequent process

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