混合动力车电池模组冷却结构优化  

Cooling Structure Optimization of Battery Module for Hybrid Electric Vehicle

作　　者：刘研[1,2] 谷风 陈承 LIU Yan;GU Feng;CHEN Cheng(Sate Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,China;College of Automotive Engineering,Jilin University,Changchun 130025,China)

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,吉林长春130025 [2]吉林大学汽车工程学院,吉林长春130025

出　　处：《同济大学学报（自然科学版）》2018年第11期1543-1549,共7页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金(51376079)

摘　　要：通过对混合动力车电池箱并行结构的改进,改善了原有并行通风结构的进风不均匀性,达到对电池模组前后表面冷却的目的.按照进风形式和流道结构的不同,设计了楔形、梯形和圆孔挡板3种进风结构,圆孔挡板结构均匀进风效果最佳.对圆孔挡板结构进行冷却维度改进,设计了平行冷却和垂直冷却2种方式.结果表明:双流道、垂直冷却结构较优,在中低放电倍率和环境温度小于30℃的情况下,出口流速为6m·s^(-1)、电池间隙为4~6mm时散热效果最佳.In this paper,the parallel ventilation structure of battery box for hybrid electric vehicle is improved by optimizing the original parallel ventilation structure.Uniform cooling between the front surface and the rear surface of battery can be ensured.According to the air inlet mode and flow path structure,three kinds of structures,i.e.,wedge-shaped structure,trapezoid structure and circular hole baffle structure,are designed.It is shown that the circular hole baffle structure is the best.Meanwhile,the structure of the circular hole baffle is improved in cooling dimension.Parallel cooling and vertical cooling are demonstrated.The results show that the dual-channel vertical cooling structure is the better.In the condition of ambient temperature less than 30℃,cooling effect is the best at medium and low discharge status when the outlet flow velocity is 6 m·s^-1 and the battery gap is 4~6 mm.

关 键 词：混合动力车 电池模组 结构优化 

分 类 号：U469.72[机械工程—车辆工程]