温度交变对电池包性能影响分析  

Influence of Temperature Alternating on Battery Pack Performance

作　　者：于林 罗日萍 占莉 YU Lin;LUO Riping;ZHAN Li(Geely Automobile Research Institute(Ningbo)Co.,Ltd.,Ningbo 315336,China;Viridi E-mobility Technology(Ningbo)Co.,Ltd.,Ningbo 315336,China)

机构地区：[1]吉利汽车研究院(宁波)有限公司,浙江宁波315336 [2]威睿电动汽车技术(宁波)有限公司,浙江宁波315336

出　　处：《拖拉机与农用运输车》2021年第4期16-19,共4页Tractor & Farm Transporter

摘　　要：为了研究电池包在冷却和加热过程中的温度交变影响,基于热仿真和结构仿真,分别分析了电池包内部在高温冷却过程中液冷板的温度变化,以及温度变化引起的应力、变形的影响。以此为依据分析电池包冷热交替试验内部异响产生的根源,通过对其受力分析的结果,验证了电池包内部冷热交替产生的摩擦异响来源以及改善方案。In order to study the influence of alternating temperature on the battery pack in the cooling and heating process,based on the thermal simulation and structural simulation,the temperature change of the liquid cooled plate in the battery pack during the high-temperature cooling process as well as the influence of the stress and deformation caused by the temperature change were respectively analyzed.On the basis,the source of the abnormal sound in the battery pack was analyzed in the cold-hot alternating test.The source of the abnormal sound in the battery pack and the improvement plan were verified through the force analysis result.

关 键 词：电池包 冷热交变 热应力 

分 类 号：TM911[电气工程—电力电子与电力传动]