A production process of led heat pipe heat sink

Abstract

The invention relates to a production process of an LED (light emitting diode) heat pipe radiation fin, and in particular relates to a production process of a radiation fin. The production process of the LED heat pipe radiation fin comprises the following steps: 1, manufacturing a radiation fin; 2, manufacturing the radiation fin into a semi-sealed U-shaped copper pipe; 3, riveting the copper pipe and the radiation fin together; 4, pouring aluminum water into a predesigned base plate mold of the radiation fin; 5, embedding the seal necking end of the U-shaped copper pipe by use of the aluminum water, and then cooling down the mold quickly, thus a base plate is formed when the aluminum water is condensed; 6, pouring three types of liquids, namely electrolytic distilled water, alcohol and ethanol into the copper pipe, then evacuating the interior of the copper pipe into a vacuum state, and finally carrying out argon arc welding; and 7, carrying out CNC (computer numerical control) processing, thus the LED heat pipe radiation fin is obtained. The manufactured radiation fin has the advantages of high radiation efficiency, flexible design and favorable machinability.

Description

technical field [0001] The invention relates to a heat sink production process, in particular to a production process of an LED heat pipe heat sink. Background technique [0002] At present, the biggest problem encountered by LEDs is light decay, and the direct cause of light decay is temperature. Generally, temperature and light decay are inversely proportional. The existing heat dissipation technologies are traditional die-casting process, extrusion process, and welding process. However, the nature of die-casting materials determines that low-power LEDs can solve heat dissipation, and high-power LEDs are almost impossible; extrusion technology can generally be used for high-power heat dissipation, but due to the limitations of the extrusion process itself, it is difficult to achieve the appearance required by the design , and the radiation and convection space required by the thermal design, the circulation mode of the airflow, and the space-to-height ratio of the heat no...

AI Technical Summary

Problems solved by technology

However, the nature of die-casting materials determines that low-power LEDs can solve heat dissipation, and high-power LEDs are almost impossible; extrusion technology can generally be used for high-power heat dissipation, but due to the limitations of the extrusion process itself, it is difficult to achieve the appearance required by the design , and the radiation and convection space required by the thermal design, the circulation mode of the airflow, and the ratio of the height to the heat nozzle exchange coefficient

Although the welding process can solve the defects of the above two processes, since soldering requires solder paste and electroplating, it has a great impact on heat dissipation and heat conduction

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