Power battery thermal management system based on combination of microchannel heat pipe and phase change material

Abstract

The invention discloses a power battery thermal management system based on the combination of a microchannel heat pipe and a phase change material. The power battery thermal management system comprises multiple battery cells, a microchannel heat pipe, a box with through holes, a box cover, fins welded to the side walls of the box and clamping plates. The microchannel heat pipe comprises multiple evaporation ends and condensation ends. The evaporation ends and the battery cells are arranged at intervals. The evaporation ends are connected in parallel and form a loop with the condensation ends.The battery cells are separated from the evaporation ends through the clamping plates. The gap between the two clamping plates is filled with a phase-change material. The condensation ends stretch outof the box through the through holes and are installed on the fins. The power battery thermal management system has the advantages of large heat dissipation amount, high heat dissipation efficiency,fast heat dissipation rate, low cost, high safety, energy saving, environmental friendliness and simple structure.

Description

technical field [0001] The invention belongs to the technical field of thermal management of power batteries, in particular to a battery thermal management system based on the combination of microchannel heat pipes and phase change materials. Background technique [0002] Currently, due to environmental and energy issues, electric vehicles are developing rapidly. Electric vehicles have the advantages of zero emission, low noise, high efficiency, low energy consumption, and convenient maintenance. However, the heat dissipation of electric vehicle power batteries is an important international problem that needs to be solved urgently. At present, the power battery of electric vehicles is a battery pack structure composed of multiple battery cells, and the heat between the battery cells is difficult to dissipate, resulting in an increase in the temperature of the battery working environment. The high-temperature working environment will have a great impact on the performance an...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a battery thermal management system based on the combination of microchannel heat pipes and phase change materials, which is used to solve the problems of low heat exchange efficiency, uneven heat dissipation, high cost, slow response, and problems of existing power battery thermal management systems. Problems of unstable operation and low security

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