基于风冷模型电池模组的建模与仿真分析

Modeling and Simulation Analysis Based on Air Cooling Model Battery Module

摘要: 本文针对18650圆柱型锂离子电池提出了一种风冷热管理系统，整个电池模组由10颗18650锂离子电池组成，电池按2 × 5的排布方式进行布置。电池模组三维几何模型由相应3D建模软件绘制，论文论述了电池模组风冷散热的数值仿真过程，整个仿真在Ansys系统中fluent模块进行，为后续研究人员进行相应的热仿真提供基础。同时研究了流速对风冷散热的影响，探究了不同流速下电池模组的最高温度和温差，结果表明进风口流速的增加可以增强电池模组的散热性能。

Abstract: This paper presents an air cooling and heat management system for 18650 cylindrical lithium-ion battery. The whole battery module is composed of 10 18650 lithium-ion batteries. The batteries are arranged in a 2 × 5 arrangement. The three-dimensional geometric model of the battery module is drawn by the corresponding 3D modeling software. This paper focuses on the numerical simulation process of the battery module’s air cooling and heat dissipation. The entire simulation is conducted in the fluent module of the Ansys system, providing a basis for subsequent researchers to conduct corresponding thermal simulations. At the same time, the effect of flow rate on air cooling heat dis-sipation was studied, and the maximum temperature and temperature difference of the battery module under different flow rates were explored. The results showed that increasing the flow rate at the air inlet can enhance the heat dissipation performance of the battery module.