摘要
蓄电池的性能是决定电动汽车整车性能的重要因素。介绍了蓄电池的散热状况,以镍氢动力电池为分析对象,对其充电过程中的热效应进行详细分析,并在ANSYS软件环境下模拟了电池单体的温度场,电池组的温度分布、自然冷却、风冷散热以及风冷串行和并行的流场,通过仿真结果的分析比较,对散热模型进行改良,设计优化了箱体散热片和散热孔,最终实现蓄电池组最优的设计方案。
Batteries performance of electric vehicles is the important factor to decide their whole performance.This paper introduces cooling conditions of the battery,taking nickel-hydrogen power batteries for example,a detailed analysis for their thermal effects in the process of recharging is made,and the battery monomer temperature field,batteries temperature distributions,the natural cooling,the forced-air cooling as well as the flow field for the forced-air cooling serial and the parallel are simulated under the ANSYS software environment,the cooling model through the analysis and comparison are modified for the simulation results,the design for radiator fin and cooling holes is optimized,and eventually the optimal design for batteries is realized.
出处
《机械研究与应用》
2011年第6期60-62,66,共4页
Mechanical Research & Application
关键词
电动汽车
镍氢电池
ANSYS热模型
箱体设计
electric vehicles
Ni-MH battery
ANSYS thermal model
enclosure-box design
