A hybrid cooling device applied to a high-power power supply system

Abstract

The invention proposes a hybrid heat dissipation device applied to a high-power power supply system, which includes a metal shell, at least one air supply device and a plurality of pin-shaped fins; The lower half of the side wall is provided with a plurality of rectangular gaps to form heat dissipation fins; the air supply device is installed on the side wall opposite to the metal shell and the heat dissipation fins; a plurality of pin-shaped fins are periodically distributed and fixed on the metal shell On the top wall in the body cavity, a phase change material is poured between the plurality of needle fins; any side wall of the upper half of the metal shell is provided with an injection hole and an exhaust valve. The invention combines air-cooling heat dissipation and phase-change heat dissipation to achieve a more effective heat dissipation effect without increasing the volume of the heat dissipation device in an environment where the space of the power supply system is limited, thereby improving the performance of the high-power power supply system. heat dissipation capacity.

Description

technical field [0001] The invention belongs to the technical field of heat dissipation of electrical components, and relates to a heat dissipation device combined with air-cooled heat dissipation and phase-change heat dissipation applied to a high-power power supply system. [0002] technical background [0003] A high-power power supply system usually consists of DC power distribution equipment, rectifier equipment, inverter equipment, power supply equipment, battery packs and related control equipment. When the system is working normally, the three-phase alternating current is converted into high-voltage direct current through rectification and filtering, and then the high-voltage direct current is converted into low-voltage square wave through the power switch and power transformer, and finally the high-frequency square wave voltage is filtered into another fixed voltage by the rectification and filtering circuit. Or DC power with adjustable voltage to provide DC power fo...

AI Technical Summary

Problems solved by technology

At present, most of the heat dissipation equipment adopts air-cooled heat dissipation system and phase change heat dissipation system. For example, the patent application with the publication number of CN205179601U and the name "A Power Supply Indirect Forced Air-cooled Heat Dissipation System" discloses a heat dissipation system using a sealing plate and a heat exchange plate. , Metal fins and fans form a heat dissipation duct for forced air cooling. Although the heat dissipation effect is good, under the premise of the limited space of the high-power power supply system, a whole piece of air-cooled radiator has to be used to improve its heat dissipation capacity. , not only increases the volume and weight of the system, but also damages the economy and versatility of the system, which is not conducive to practical application

Another example is the application publication number CN 112312727A, the patent application titled "a belt-type phase change heat dissipation device", which discloses a belt-type phase change heat dissipation Although the equipment can quickly spread the heat to the heat dissipation belt and the uniform temperature plate through the heat pipe to obtain a large heat dissipation area, it cannot dissipate the generated heat to the surrounding environment as soon as possible, which will lead to Concentrated heat, which can damage the power system

[0005] To sum up, neither the air-cooled heat dissipation system nor the phase change heat dissipation system alone can obtain higher heat dissipation efficiency under the same volume and conditions

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