动力电池冷板波纹形流道结构的优化  

Optimization of structure of cold plate with corrugated flow channel for power battery

作　　者：蔡永华[1,2,3,4] 张大帅 胡永波 CAI Yonghua;ZHANG Dashuai;HU Yongbo(Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan,Hubei 430070,China;Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan,Hubei 430070,China;Hubei Technology Research Center of New Energy and Intelligent Connected Vehicle Engineering,Wuhan,Hubei 430070,China;School of Automotive Engineering,Wuhan University of Technology,Wuhan,Hubei 430070,China)

机构地区：[1]武汉理工大学现代汽车零部件技术湖北省重点实验室,湖北武汉430070 [2]汽车零部件技术湖北省协同创新中心,湖北武汉430070 [3]新能源与智能网联车湖北省工程技术研究中心,湖北武汉430070 [4]武汉理工大学汽车工程学院,湖北武汉430070

出　　处：《电池》2024年第6期799-804,共6页Battery Bimonthly

基　　金：国家自然科学基金面上项目(52176200)。

摘　　要：针对动力电池冷却问题,考虑电池模组的布局和散热要求,设计一种具有波纹形流道的冷板,在保证能耗的前提下,控制冷板换热面温度,并具有良好的热均匀性。分析冷板的特征结构,分别讨论波峰波谷高度、流道入射角度及流道宽度对冷板性能的影响。调节流道入射角度可更好地通过流量分配来控制板内压降变化,流道宽度与波峰波谷的设置能改善冷板的热均匀性问题。用最优参数设计的波纹形流道冷板,相比于传统的直流道,换热性能提升8.4%,板内能耗仅提升1.7%。In response to the cooling issue of power batteries,a cold plate with the corrugated flow channel is designed by considering the layout and heat dissipation requirements of the battery module.It can regulate the temperature of the heat exchange surface while ensuring the energy consumption is kept in check,and it has good thermal uniformity.The characteristic structure of cold plate is analyzed,the impacts of peaks and troughs height,channel inlet angle and channel width on performance of the cold plate are discussed respectively.Adjusting the channel inlet angle can better control the variation in internal pressure drop through flow distribution,while the setting of channel width and peaks and troughs can improve the thermal uniformity issue of the cold plate.The corrugated flow channel cold plate,designed based on optimal parameters,exhibits an 8.4% increase in heat exchange performance compared to traditional straight channels,with only a 1.7% increase in energy consumption within the plate.

关 键 词：动力电池 冷板 结构设计 波纹形流道 流道宽度 流道入射角度 

分 类 号：TM912.9[电气工程—电力电子与电力传动]