Plastic heat pipe processing method

Abstract

The invention provides a plastic heat pipe, which comprises a pipe body formed by extruding plastic or a plastic polymer composite material with a plastic extrusion machine. The inner wall of the pipe body is provided with a plurality of micro grooved chambers along the circumferential direction, the micro grooved chambers are provided with openings in the direction towards the center of the pipeand are communicated with the inside of the pipe body, the width of the openings of the grooved chambers is less than the width of the grooved chambers; and the two ends of the plastic heat pipe are connected with a heat transmitter. The processing method of the plastic heat pipe comprises the following steps: 1) forming the pipe body of the plastic heat pipe by extruding a pipe material with theplastic extrusion machine; 2) making a liquid absorbing core penetrate through the micro grooved chambers on the inner wall of the pipe body; 3) connecting the two ends of the pipe body of the heat pipe and the heat transmitter through welding, splicing, jacketing or extrusion; 4) sealing one end of the pipe body of the heat pipe through heating and extrusion melting; and 5) filling working fluidinto the pipe body of the heat pipe, and sealing the other end of the pipe body of the heat pipe through heating and extrusion melting. The plastic heat pipe and the processing method thereof provided by the invention has the advantages of simple process, low cost, reliable use and wide scope of application.

Description

technical field [0001] The utility model relates to a heat pipe and a processing method thereof, in particular to a processing method of a heat pipe with a plastic polymer material as a pipe body. Background technique [0002] With the rapid development of microelectronics technology, integrated circuits are developing in the direction of high density and high power. In order to solve the thermal stability problems of electrical equipment and components such as various power devices, high-speed chips, and high-power LEDs, heat dissipation devices are usually installed on the heating devices so that the heat generated by the heating devices can be taken away to reduce the surface of the heating devices. temperature, so as to ensure the normal operation of equipment components. Traditional radiators, fans, blowers, integration of fans and radiators, cold plates, fan boxes, thermoelectric cooling, heat exchangers, vortex tubes, and air conditioners can no longer meet the needs...

AI Technical Summary

Problems solved by technology

The main problems in the prior art are: 1) the connection between the capillary material of the liquid-absorbing core and the shell is not firm, and it is easy to fall off or even be blocked; 2) the heat pipe is not easy to bend, and it is easy to block the pipeline and the liquid-absorbing core during the bending process; 3) The metal pipe body conducts electricity and is not suitable for insulation; 4) The processing technology is complicated and the manufacturing cost is high

Chinese patent 200510027982.4 discloses a heat pipe containing a shell of polymer material or part of a shell of polymer material, but does not involve a specific heat pipe structure and processing method

However, the polymer material is in a molten state during the extrusion process, which is easy to block the capillary structure of the fiber woven net, and increases the liquid return resistance and heat transfer performance of the heat pipe; the openings at both ends of the heat pipe of the polymer material and the metal radiator Sealed by plugging and crimping, the reliability in processing and use is poor, and it is easy to cause heat pipe failure due to vacuum damage in the tube

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