分流板对电动汽车电池组散热的影响  

Effects of Splitter Plate on Heat Dissipation of Lithium-ion Battery Packs for Electric Vehicles

作　　者：杨凡奇 高昕葳 刘朝辉 Yang Fan-qi;Gao Xin-wei;Liu Zhao-hui(School of Mechanical Engineering,GanSu Forestry Voctech University,Gansu Tianshui 741020)

机构地区：[1]甘肃林业职业技术大学机电工程学院,甘肃天水741020

出　　处：《内燃机与配件》2024年第21期38-40,共3页Internal Combustion Engine & Parts

基　　金：甘肃林业职业技术学院院列科研项目(GSLY2023-01A)。

摘　　要：电动汽车锂离子电池组散热对汽车的安全性能有重要的影响。圆柱电池组合分流板可以增加换热通道内的换热量。为优化组合分流板的电池组换热通道传热性能,本文通过将分流板的板长比由0.5变化至1.5,采用FLUENT软件数值模拟并分析了分流板板长比对换热通道内传热的影响。结果表明分流板的板长比对圆柱电池换热通道内传热的影响较大。随着板长比的增大,平均Nu也逐渐增大.当板长比为1.5时,与光通道相比,换热效果最优,平均Nu最大增加了64.7%。The heat dissipation of lithium-ion battery packs for electric vehicles has an important impact on the safety performance of automobiles.The cylindrical battery combined splitter plate can increase the heat exchange in the heat exchange channel.In order to optimize the heat transfer performance of the battery pack with the combined splitter plate,this paper numerically analyzed the length of the splitter plate performance on heat transfer characteristics in the heat exchange channel of the cylindrical battery using FLUENT software by changing the ratio of plate length to splitter plate from 0.5 to 1.5.The results show that the plate-length ratio of the splitter plate has a great influence on the heat transfer for the heat exchange channel of the cylindrical battery.As the ratio of plate length increases,the average Nu also gradually increases.When the ratio of plate length is 1.5,the average Nu are the largest,the heat transfer performance is optimal.Compared with the optical channel,the average Nu increases by 64.7%.

关 键 词：锂离子电池组 分流板 CFD 强化传热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]