摘要
针对空冷电池散热模组在温度场均匀性方面的局限性,以优化电池组散热结构和参数为主要研究内容,采用COMSOLMultiphysics软件建立电池组冷散热仿真模型对复合散热结构进行瞬态物理场分析,设计一种空冷与热管结合的新型复合散热方案,研究不同翅片间距、不同空气流速以及不同进风温度对电池组温度场的影响。结果表明,翅片间距是影响散热效果的主要因素,并采用双进双出口结构与设计热管进行复合设计,电池间距设为4mm,气体流速定为6m/s。优化后的复合结构与风冷散热电池模组对比,电池组最高温度为32.3℃,温差为1.9℃。该优化结果在控制电池组最高温度和电池组温度均匀化方面都表现更好,为新型复合散热方案应用于电动汽车提供了参考。
To address the limitations of air-cooled battery cooling modules in terms of temperature field uniformity,and to optimize the battery pack air cooling structure and parameters,the COMSOL Multiphysics software was used to establish the simulation model of battery pack cooling and heat dissipation.The transient physical field analysis is carried out in the composite heat dissipation structure.A new type of composite heat dissipation scheme combining air cooling and heat pipe is designed.The effects of different fin spacing,air velocity and inlet temperature on the temperature field of battery pack are studied.The results show that the fin spacing is the main factor affecting the heat dissipation effect.The double inlet and double outlet structure and the design heat pipe are used for composite design,the cell spacing is set to 4 mm,the gas flow rate is set to 6 m/s.The results show that the maximum temperature is 32.3℃and the difference is 1.9℃.The optimization results improve the control of battery temperature to a greater extent,and enhance the temperature field uniformity,so it provides a reference for the application of the new composite heat dissipation scheme in electric vehicles.
作者
崔巍
李渊
贾岩
CUI Wei;LI Yuan;JIA Yan(School of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;Weichai Leiwo Intelligent Agricultural Technology Co.,Ltd.,Shandong Weifang 261000,China)
出处
《内蒙古工业大学学报（自然科学版）》
2024年第2期115-122,共8页
Journal of Inner Mongolia University of Technology：Natural Science Edition
基金
内蒙古自治区高等学校科学研究项目(NJZZ22373)
内蒙古工业大学科学研究项目(ZZ202120)。
关键词
动力电池
复合散热
电化学-热耦合模型
结构优化
power battery
composite cooling
electrochemical-thermal coupled model
structural design and optimization
