折流式动力电池液冷板流动传热性能强化  

Flow Heat Transfer Performance Enhancement of Baffled Cold Plate for Power Battery

作　　者：吴晨辉 蔡烨琳 陈竞 邱慧燃 李乐 刘昌会 赵佳腾 WU Chen-hui;CAI Ye-lin;CHEN Jing;QIU Hui-ran;LI Le;LIU Chang-hui;ZHAO Jia-teng(School of Low-Carbon Energy and Power Engineering,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China;Hengchuang Thermal Management Co.,Ltd.,Changzhou 213000,Jiangsu,China)

机构地区：[1]中国矿业大学低碳能源与动力工程学院,江苏徐州221116 [2]常州恒创热管理有限公司,江苏常州213000

出　　处：《新能源进展》2022年第6期502-508,共7页Advances in New and Renewable Energy

基　　金：江苏省自然科学基金项目(BK20190628);中央高校基本科研业务费专项资金项目(2021QN1065);中国矿业大学大学生创新创业训练计划项目(202210290362H)。

摘　　要：发展新能源汽车是助力“双碳”战略的有效措施之一,动力电池的热安全和热衰减问题制约了新能源汽车的发展。针对这一问题设计折流式动力电池液冷板,研究结构参数对其流动传热特性的影响,对比不同局部连通方式的优化效果。结果表明,折流板长且多的冷板具有更好的综合换热性能,局部连通结构能够同时提升折流式冷板的综合换热性能和温度均匀性,增加连通口数量及最后连通口与流道拐角的距离能够进一步提升优化效果,最大分别可提升25.62%和7.84%。The development of new energy vehicles is one of the effective measures to support the carbon peaking and carbon neutrality strategy.Thermal safety and thermal attenuation problems of power battery restrict the development of new energy vehicles.The influence of structural parameter on the flow and heat transfer characteristics of the baffled cold plate were studied.The optimization effect of different local connection methods was compared.The results showed that the comprehensive heat transfer performance of the baffled cold plate with long and multi baffles was better.The comprehensive heat transfer performance and temperature uniformity of the baffled cold plate with local connection structure were improved at the same time.Increasing the local slit number and the distance between the last slit and the channel corner of the flow channel can further improve the optimization effect by 25.62%and 7.84%,respectively.

关 键 词：电池热管理 折流式冷板 局部连通 传热强化 

分 类 号：TK172[动力工程及工程热物理—热能工程]