Pulsating heat pipe power battery composite heat dissipation device

Abstract

A pulsating heat pipe power battery composite heat dissipation device is characterized by comprising a box body, through holes, box body narrow side face heat dissipation openings, box body top heat dissipation openings, pulsating heat pipes, a fixing support, single batteries and a phase change material; a plurality of battery modules are arranged in the box body; wherein the battery module consists of a plurality of rectangular single batteries, pulsating heat pipes clamped among the single batteries, and phase change materials filled between the pulsating heat pipes and the single batteries; heat dissipation openings are formed in the narrow side face and the top end of the box body. And the fan is arranged on the through hole on the wide side surface of the box body. The evaporation end of the pulsating heat pipe is in close contact with the single batteries on the two sides and the phase change material between the single batteries, and the condensation end penetrates through thebattery pack and is positioned at the lower end of the top plate of the box body. The pulsating heat pipes always appear in pairs, the evaporation ends of the two pulsating heat pipes are close to each other, the evaporation ends are fixed through a fixing support, and the condensation ends are far away from each other. The device has the advantages of large heat dissipating capacity, high heat dissipating efficiency, good temperature uniformity among the single batteries, simplicity in processing and the like, and the defects of poor heat-conducting property and low air cooling heat exchangeefficiency of a phase-change material are overcome by combining the pulse heat pipe, the phase-change material and an air cooling technology, so that the heat dissipating efficiency of the power battery is further improved.

Description

technical field [0001] The invention belongs to the field of power battery heat dissipation, and in particular provides a pulsating heat pipe power battery composite heat dissipation device. Background technique [0002] During the "Thirteenth Five-Year Plan" period, in order to achieve the overall goal of my country's transformation from an energy-rich country to an energy-powerful country, the upgrading and transformation of the automobile industry is imperative. At present, the rapid development of the automobile industry has become a major reason for the gap between my country's energy demand and supply. ; but my country's oil resources are short, and almost half of the oil demand needs to be met through imports; An important measure for an ecologically civilized society is also the fundamental way to transform my country's automobile development mode and effectively control automobile exhaust emissions. [0003] Battery, as the core component of electric vehicles, its pe...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and to provide a pulsating heat pipe power battery composite heat dissipation device, compared with the prior art, it has large heat dissipation, high heat dissipation efficiency, and temperature uniformity among individual cells. Good, simple processing and other advantages, and the combination of pulse heat pipes, phase change materials and air cooling technology makes up for the shortcomings of poor thermal conductivity of phase change materials and low heat transfer efficiency of air cooling, thereby further improving the heat dissipation efficiency of power batteries

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