Encapsulation method of minitype flat plate hot pipe

Abstract

The invention provides a packaging process for a mini-size flat heat pipe, wherein the upper basal plate and the lower basal plate of the mini-size heat pipe are made of metal, a ring welding belt is respectively produced on the peripheries of the upper basal plate and the lower basal plate, solder is plated on the welding belt, and the upper basal plate and the lower basal plate are calibrated to tighten by holding fixtures, and are heated up to smelt down solder, and are tightly connected through the solder after the solder is cooled, thereby forming the packaging of a flat micro-thermal pipe. The invention utilizes metal with low melting point as solder, and forces a certain pressure for the shell of the micro-thermal pipe through a special die, heats and smelts solder metal under the condition of vacuum or protective gas, and facilitates the upper basal plate and the lower basal plate of the mini-size flat heat pipe to adhere after the solder is cooled down, thereby realizing the packaging purpose of the micro-thermal tube. The invention has the advantages of convenient and reliable operation, simplification and flexibility, low cost and wide application.

Description

(1) Technical field [0001] The invention belongs to a packaging technology for heat pipes, in particular to a packaging method for miniature flat heat pipes. (2) Background technology [0002] The heat pipe is a high-efficiency heat transfer element. It uses the phase change of the working medium in the closed tube to conduct heat conduction, and can transmit a large amount of heat through a small cross-sectional area for a long distance without external power. The heat pipe principle was first proposed by Gaugler in 1944, but it was not adopted at that time. Until 1963, Grover of the Los Alamos National Laboratory in the United States independently re-invented a heat transfer element similar to that proposed by Gauglcr, and officially named this heat transfer element the heat pipe "Heat Pipe", pointing out that its thermal conductivity has exceeded any other. A known metal, and the experimental results of a heat pipe with sodium as the working medium, stainless steel as th...

AI Technical Summary

Problems solved by technology

The advantage of this kind of process is that the bonding is firm and the sealing is good, but there are also problems such as difficult processing and high equipment cost.

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