Fin type phase change heat dissipation device

Abstract

The invention discloses a fin type phase change heat dissipation device which comprises a hollow heat dissipation box body, a foam metal-phase change material complex is arranged in the heat dissipation box body, and a fin type heat sink is arranged on the bottom surface of the foam metal-phase change material complex. Fins of the fin type heat sink are inserted into the foam metal-phase change material complex, an air inlet grid is arranged on the side wall of the heat dissipation box body and is located above the foam metal-phase change material complex, an exhaust fan is arranged on the side wall, opposite to the air inlet grid, of the heat dissipation box body, and the heat dissipation box body is provided with a top cover. The fin type heat sink is beneficial to the rapid conduction of heat of a heat source into a phase change material, so that the heat source is effectively cooled. After the phase-change material is subjected to complete phase change, the heat absorption capacityis greatly reduced, and the heat of the heat source cannot be dissipated, so that the heat stored in the phase-change material needs to be dissipated in time, and the forced convection caused by theexhaust fan can dissipate the heat from the phase-change material rapidly.

Description

technical field [0001] The invention relates to the technical field of heat dissipation, in particular to a finned phase change heat dissipation device. Background technique [0002] With the gradual transition of the communication system to 5G, the communication base station equipment is increasingly developing in the direction of large capacity, high power, and high integration. The heat consumption density of the system is increasing, and the environmental adaptability requirements are getting higher and higher. But smaller and smaller, thermal reliability has gradually become the bottleneck of reliability design. Similarly, a communication base station needs a reasonable heat dissipation system to maintain the normal operation of its internal equipment. [0003] In addition, in recent years, new energy vehicles have become very popular in China due to their unique environmental friendliness. The emergence of lithium-ion batteries more or less meets the requirements for...

AI Technical Summary

Problems solved by technology

In addition, when the phase change material is completely phase changed, if the heat cannot be discharged in time, it will not be able to absorb the heat from the heat source, resulting in thermal runaway

The traditional composite phase change structure only simply composites the phase change material and metal foam together, less consideration is given to the internal heat conduction of the composite phase change structure and the secondary heat dissipation of the device

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