摘要
为研究电动汽车不同电流工况下电池模组之间铜排连接器的载流和温升性能,根据金属导电机理、能量守恒定律和傅立叶定律,推导了铜排的导电和导热的数学理论原理,建立导热的数学模型以及有限元模型。利用有限元分析软件STAR-CCM+仿真分析了不同载流状态下铜牌的温度分布和周围流场的分布,证明了数学模型的正确性。同时,对多种影响因素综合研究,提出了铜排的设计原则。本文的研究结果对电动汽车铜排连接器的设计和选型具有较大的理论和实际的意义。
Connected copper busbars are taken as an example for the study of current-carrying and temperature-rise performance in different current conditions of electric vehicles.Based on energy conservation law and Fourier's law,the mathematical theories for electric conduction and thermal conduction are deduced,the mathematical model and finite element model for thermal conductivity are established.By using the finite element analysis software STAR-CCM+,the temperature distribution and the flow field around the connected copper busbars are simulated and analyzed.The experimental results are in good agreement with the mathematical theories,which prove the mathematical model.At the same time,the design principle of the copper busbars is put forward based on the comprehensive study of various influencing factors.The results of this paper have great theoretical and practical significance for the design and selection of copper busbar connectors of EV.
作者
张伟庆
屈成
蒲江
叶佳
时鹏
杨勇
周安健
Zhang Weiqing;Qu Cheng;Pu Jiang;Ye Jia;Shi Peng;Yang Yong;Zhou Anjian(Chongqing Changan New Energy Automobile Co., Ltd., Chongqing 401120, China)
出处
《农业装备与车辆工程》
2017年第11期80-83,共4页
Agricultural Equipment & Vehicle Engineering
关键词
铜排
有限元模型
导电
导热
copper busbars
finite element model
electric conduction
thermal conduction
