为满足动力电池的最佳工作性能要求，保障电池系统的安全运行，大部分电池系统都需要进行有效的热管理设计。利用CFD仿真技术分析自然散热、单层水冷板散热、双层水冷板散热3种整包模组散热方式；研究了双层水冷板散热时进口水流量大小对整包散热效果的影响。结果表明：双层水冷散热的温升及温差相对较小，散热效果较为明显；当水流量小于5 L/min时，随水流量的增大，模组的整体温度下降较为明显；当水流量大于5 L/min时，模组整体温度下降较慢，散热效果不明显。
In order to meet the best performance requirements of the power battery and ensure the safe operation of the battery system, effective thermal management design is necessary for most of battery systems. By using CFD simulation technology, three kinds of whole module heat dissipation modes natural heat dissipation,single layer watercooled plate heat dissipation and doublelayer watercooled plate heat dissipation,were analyzed;the influence of the doublelayer watercooled plate inlet water flow rate on the heat dissipation effect of the battery pack was studied.The results show that the temperature rise and temperature difference of doublelayer watercooled plate heat dissipation is relatively small,and the heat dissipation effect is more obvious;when the water flow rate is less than 5 L/min,the overall temperature of the module decreases obviously with the increase of the water flow rate;when the water flow is greater than 5 L/min,the overall temperature of the module decreases slowly,and the heat dissipation effect is not obvious.
WAN Changdong, REN Huizhong, LU Chunyan, HU Zhongwen, JIAO Hongyu. Analysis and Optimization of Liquid Cooling Heat Dissipation for Lithiumion Power Battery Pack[J]. Machine Tool & Hydraulics,2021,49(4):160-163