基于同心圆流道的液冷板冷却性能研究  

Study on the Cooling Performance of Liquid-Cooled Plate Based on Concentric Circular Flow Channel

作　　者：乔世鑫 魏文华 安超 雷治国[1] QIAO Shixin;WEI Wenhua;AN Chao;LEI Zhiguo(Fujian Agriculture and Forestry University,Fuzhou 350108,China)

机构地区：[1]福建农林大学,福州350108

出　　处：《机电技术》2024年第6期57-64,共8页Mechanical & Electrical Technology

摘　　要：锂离子电池在使用过程中会产生大量热量,如何将电池工作时的温度控制在适当的范围内,是研究人员一直致力于解决的难题。为了提高电池模块的散热性能,该研究为矩形锂离子电池设计了3种类型的液体冷却板,并建立了三维仿真模型。研究还考察了冷却液流速、通道宽度和冷却液流动方向对电池散热的影响。结果表明,在3种设计中,同心流道的冷却效果最佳。通过比较5种不同结构参数的情况,案例1的结构参数可将电池温差限制在5℃以内。随着冷却剂流速的增加,冷却效果会有所改善;但当流速超过0.1 m•s-1时,流速对冷却性能的影响减弱。增加通道入口和出口的宽度可降低电池模块的温升,而调整模块内冷却剂的流动方向则会显著影响温度均匀性。该研究设计的液冷板式流道为未来的电池热管理研究提供了参考。Lithium-ion batteries(LIB)generate significant heat during use,and controlling the temperature of the battery during operation within an appropriate range is a challenge that researchers are dedicated to addressing.To enhance the heat dissipation performance of battery modules,this study designs three types of liquid cooling plates(LCP)for rectangular batteries and establishes a three-dimensional simulation model.The study also examines the effects of coolant flow rate,channel width,and coolant flow direction on battery heat distribution.The results indicate that concentric flow channels provide the optimal cooling effect among the three designs.By comparing five cases with different structural parameters,the structural parameters of Case 1 can limit the temperature difference of the battery to within 5℃.As the coolant flow rate increases,the cooling effect improves;however,when the flow rate exceeds 0.1 m•s-1,the influence of flow rate on cooling performance diminishes.Increasing the width of the channel inlet and outlet reduces the temperature rise of the battery module,and adjusting the coolant flow direction within the module significantly impacts temperature uniformity.The liquid-cooled plate flow channel designed in this study offers a reference for future battery thermal management research.

关 键 词：液体冷却板 结构设计 数值模拟 锂离子电池 

分 类 号：TM912[电气工程—电力电子与电力传动] U469.72[机械工程—车辆工程]