基于平板热管的动力电池散热性能研究  

Research on Heat Dissipation Performance of Power Batteries Based on Flat Heat Pipes

作　　者：马浩然 毕崟 李佳辉 甄瑞昌 Ma Haoran;Bi Yin;Li Jiahui;Zhen Ruichang(School of Automotive Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院汽车工程学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2024年第3期39-45,共7页Journal of Hubei University Of Automotive Technology

基　　金：湖北省教育厅科研计划项目(Q20221808);湖北汽车工业学院博士科研启动基金(BK201903)。

摘　　要：研究了平板热管应用到电池热管理系统的可行性,将平板热管与冷夜结合构建了动力电池热管冷却系统,利用CATIA建立了冷却系统三维模型,利用Fluent对电池组进行热仿真。在不同环境温度、放电倍率、冷却液流速条件下,分析了电池组的温度变化以及电池温度分布情况。结果表明:使用平板热管的电池组在2.5C放电倍率下,电池最高温度在40℃以下、最大温差5℃以下;在1C放电倍率下,与不含平板热管的模块相比,电池热管冷却系统最高温度和最大温差分别降低了8.19℃和7.46℃。The feasibility of applying flat heat pipes to thermal management systems of batteries was studied,and a heat pipe cooling system of power batteries was constructed by combining flat heat pipes with cooling liquid.A three-dimensional model of the cooling system was established using CATIA,and a thermal simulation of the battery pack was conducted using Fluent.The temperature changes and temperature distribution of the battery pack were analyzed under different environmental temperatures,discharge rates,and cooling liquid flow rates.The experimental results show that the battery pack using flat heat pipes has a maximum temperature below 40℃ and a maximum temperature difference below 5℃ at a discharge rate of 2.5 C.At a discharge rate of 1 C,compared with those of modules without flat heat pipes,the maximum temperature and maximum temperature difference of the heat pipe cooling system of the battery are reduced by 8.19℃ and 7.46℃,respectively.

关 键 词：动力电池 平板热管 最高温度 

分 类 号：U469.72[机械工程—车辆工程] TM912[交通运输工程—载运工具运用工程]