摘要
设计一种车用动力电池组的液冷系统,系统由R134a蒸汽压缩制冷回路和乙二醇水溶液循环回路两部分组成。其中制冷剂回路和冷却液回路在板式蒸发器处耦合,冷却液通过布置于电池组两侧的冷板对电池冷却。建立一维稳态制冷回路、冷却液回路和电池组的仿真模型,并开展相关温控实验。结果表明电池组最高温度受放电电流影响。在1 C及以下倍率工作时,液冷系统能稳定控制电池组处在适宜的工作温度范围内且温度均衡。
This paper focused on the characteristics of the liquid cooling system for electric vehicle batteries. The battery liquid cooling system consists of a vapor compression system using R134 a as working fluid and a coolant cycle using the mixture of water and ethylene glycol as working fluid. The refrigerant cycle connects with coolant cycle via a plate heat exchanger functioned as evaporator. The battery pack is cooled by coolant via cooling plates on the both sides of the pack. This paper established a 1 D steady simulation model and validation experiment for the vapor compression system, which combining with coolant cycle. The result shows that the highest temperature of batteries is mainly influenced by the current. Liquid cooling system is able to maintain the temperature of the batteries within appropriate scale.
作者
黄馗
王文
HUANG Kui;WANG Wen(The Institute of Refrigeration and Cryogenics(IRC),Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《电源技术》
CAS
北大核心
2019年第3期415-419,共5页
Chinese Journal of Power Sources
关键词
液冷
动力电池
冷板
仿真
liquid cooling
power battery
cooling plate
simulation
