电动汽车动力电池组液冷散热优化
Optimization of Liquid Cooling Heat Dissipation for Electric Vehicle Power Battery Packs
王燕令 1平京玉 2刘鹤 1刘勇 1吴学红 1赵地2
作者信息
- 1. 郑州轻工业大学能源与动力工程学院,郑州 450001;郑州轻工业大学食品生产与安全河南省协同创新中心,郑州 450001
- 2. 郑州轻工业大学能源与动力工程学院,郑州 450001
- 折叠
摘要
电动汽车动力电池在充放电过程中快速产生大量的热量,开展高效散热设计有利于提升电池组工作效率及其安全性.采用冷板和电池组相结合的方式进行电池组液冷散热设计,以50℃作为临界最高温度进行研究,结果表明冷板与电池组采用侧面侧方布置时电池表面平均温度最低,温度均匀性较好.满足散热设计对应的相间侧向所需质量流量最小且为0.05 kg/s,而相间上向模型的压降最小.因此,电池组散热设计时可优先选择电池单体与冷板相间布置的结构.
Abstract
The charging and discharging process of electric vehicle power batteries generates a large amount of heat,and the devel-opment of an efficient heat dissipation design is conducive to improving the efficiency and safety of the battery packs.A combination of cold plate and battery packs was used for the liquid cooling heat dissipation design of the battery packs.The critical maximum tempera-ture was set to 50 ℃ here and the results showed that the average battery temperature was lowest and the temperature uniformity was better when the cold plate and battery packs were arranged in a side-to-side lateral direction.The minimum required mass flow rate was 0.05 kg/s for the inter-phase lateral model,while the inter-phase upward model had the lowest pressure drop.Therefore,a structure with an interphase arrangement of power battery and cold plates can be preferred for the thermal design of the battery packs.
关键词
电动汽车/动力电池/液冷/散热/相间布置Key words
electric vehicle/power battery/liquid cooling/heat dissipation/interphase arrangement引用本文复制引用
基金项目
河南省科技攻关项目(222102310135)
河南省科技攻关项目(212102210231)
河南省科技攻关项目(232102230031)
中原科技创新领军人才(234200510011)
郑州市协同创新专项(2021ZDPY0107)
出版年
2024
NETL
NSTL
万方数据