基于双向并联流道液冷板的电池热仿真与优化  

Thermal Simulation and Optimization of Battery Based on Bidirectional Parallel Flow Channel Liquid-cooling Plate

作　　者：李睿 王铁[1] LI Rui;WANG Tie(School of Automotive and Transportation,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学汽车与交通学院,沈阳110159

出　　处：《车辆与动力技术》2023年第2期14-19,共6页Vehicle & Power Technology

摘　　要：为了优化电动汽车电池热管理系统,使锂电池模组始终能在合适的温度区间正常工作,提出了一种双向并联流道的液冷板布局结构,采用某方形锂电池为研究对象,对在环境温度40℃下的电池模组进行散热仿真,针对仿真结果进行优化改进,结果表明:改进后的液冷结构具有足够的散热能力,模组的最高温度降低1.285℃,最大温差降低1.2℃.电池模组可以在较为理想的环境下进行散热.改变冷却液入口质量流量与冷却液温度,能够起到不同效果的散热能力,需要根据不同模组情况针对性调整.In order to optimize the electric vehicle battery thermal management system to enable the lithium battery module can always work normally in the appropriate temperature range,a two-way parallel flow channel layout structure is proposed.This method uses a square lithium battery as the research object and heat dissipation simulation is conducted for the battery module at an ambient temperature of 40℃.Then,we further optimize and improve the model according to the simulation results.The results show that the improved liquid-cooled structure has sufficient heat dissipation capacity,while the maximum temperature of the module is reduced by 1.285℃and the maximum temperature difference is reduced by 1.2℃.The battery module can dissipate heat in a more ideal environment.Changing the coolant inlet mass flow and coolant temperature can play a different role in the heat dissipation capacity,which needs to be adjusted according to the situation of different modules.

关 键 词：电池热管理系统 电池模组 液冷散热 数值模拟 结构优化 

分 类 号：U469.72[机械工程—车辆工程]