【摘要】 目前，风冷及液冷电池组热管理系统的研究和应用较多，使用热管的电池组热管理系统在实际应用中很少见。热管和风冷结合的散热结构与风冷散热结构相比，可更高效地将电池内部产生的热量传递至外界，在保证电池组密封前提下，使电池组内部温度更均衡；它与液冷散热结构相比，减少冷却液体质量，避免了液冷管路漏液发生，提高电池组使用的可靠性和安全性。采用仿真软件，对热管结合风冷的散热结构进行热仿真，探究冷却风入口风速和角度、隔板材料性质及是否添加扰流板对电池组散热效果和温度均匀性的影响。仿真数据说明与原状态比较，通过增加入口风量、改变隔板材料以及添加扰流板，可使电池组最高温度和最大温差分别降低26.8%和65.9%。更多还原

【Abstract】 At present, there are many researches and applications of air-cooled and liquid-cooled battery pack thermal management system, but the thermal management system of battery pack using heat pipe is very rare in practical application. Compared with the air-cooled cooling structure, the heat-pipe combined with air-cooled cooling structure can transfer the heat generated inside the battery to the outside more efficiently. Ensure that the battery is sealed and the temperature inside the battery string is more balanced. Compared with the liquid cooling structure, it reduces the quality of the cooling liquid, avoids the leakage of the liquid cooling pipeline, and improves the reliability and safety of the battery pack. Simulation software was used to conduct thermal simulation of heat pipe combined with air cooling structure, to explore the influence of cooling air inlet wind speed and angle, partition material properties and whether to add spoilers on the heat dissipation effect and temperature uniformity of the battery pack. The simulation data shows that compared with the original state, by increasing the inlet air volume, changing the baffle material and adding the spoiler, the maximum temperature and maximum temperature difference of the battery pack can be reduced by 26.8% and 65.9%, respectively.更多还原