摘要
为了解决电动汽车冬季续航里程严重缩水的问题,进行了一系列保温优化设计。针对某款动力电池包,首先分析了其在低温下的“痛点”和散热路径,在不降低模型精度基础上,进行了内部保温和外部保温仿真设计和分析。以优化的内外保温相结合的方案为蓝本,进行了保温性能仿真验证。结果表明,保温工况下电池包的低温“痛点”主要集中在靠近端板的位置。在该部位采取加强隔热的措施,就能提升电池包最低温度,减小温差。
In order to solve the problem of serious degradation of electric vehicles mileage in winter,a series of thermal insulation optimization designs were carried out.For a power battery pack,firstly,the"pain points"and heat dissipation paths at low temperatures were analyzed.On the basis of not reducing the accuracy of the model,the simulation design and analysis of internal insulation and external insulation were carried out.Based on the optimized scheme of internal and external thermal insulation,the thermal insulation performance was simulated and verified.The results show that the source to the low temperature issue of the battery pack is mainly the end plate.The minimum temperature of battery pack can be raised and the temperature difference can be reduced by taking measures to strengthen the thermal insulation at this part.
作者
黄伟
阎明瀚
刘华俊
徐宇虹
江吉兵
HUANG Wei;YAN Minghan;LIU Huajun;XU Yuhong;JIANG Jibing(EVE Energy Co.,Ltd.,Huizhou Guangdong 516000,China)
出处
《电源技术》
CAS
北大核心
2021年第10期1274-1278,1291,共6页
Chinese Journal of Power Sources
关键词
电动汽车
动力电池
保温性能
优化设计
electric vehicles
power battery
insulation performance
optimal design
