【摘要】 为综合探究各因素对电池模组浸没冷却效果的影响与规律，以9节21700电池组成的最小模组单元为研究对象，搭建试验台架并展开研究，发现设计条件下，模组的温差在强制对流冷却1C放电时较小，而自然对流冷却则2C放电时较小。建立并验证了浸没冷却模组的数值仿真方法，将不同模型的计算结果进行对比分析，发现设计条件下，电连接件会影响模组的温升与温度分布。基于仿真方法探究了冷却介质及其流量与温度对冷却效果的影响，发现模组的温升与温差随流量的增大而降低，降低入口温度可以减小模组的温升，提高入口温度则可以减小模组的温差。更多还原

【Abstract】 In order to comprehensively explore the influence and rule of various factors on the immersion cooling effect of battery module, taking the smallest module unit composed of nine 21700 batteries as the research object, a test bench was built and experimental research was carried out.It was found that, the temperature difference of the module under the condition of forced convection cooling was smaller when 1C discharged, while the temperature difference under the condition of natural convection cooling was smaller when 2C discharged.The numerical simulation method of the immersion cooling module was established and verified.By comparing and analyzing the results of different models, it was found that the electrical connection components would affect the temperature rise and distribution.Based on the simulation method, the influence of the cooling medium and its flow rate and temperature on the cooling effect was explored.The temperature rise and temperature difference decreased with the increased of the flow rate; reducing the inlet temperature would reduce the temperature rise, and increasing the inlet temperature would diminish the temperature difference of the module.更多还原