轮毂电机温度场与水冷散热分析  

Analysis of Temperature Field and Water Cooling Heat Dissipation of Wheel Motor

作　　者：王渝甬 王奎洋[1] 朱传雲 Wang Yu-yong;Wang Kui-yang;Zhu Chuan-yun(School of Automotive and Traffic Engineering,Jiangsu University of Technology,Jiangsu Changzhou 213001)

机构地区：[1]江苏理工学院汽车与交通工程学院,江苏常州213001

出　　处：《内燃机与配件》2024年第23期1-4,共4页Internal Combustion Engine & Parts

基　　金：江苏省产学研合作项目(BY2019062);江苏省高等学校基础科学(自然科学)研究重大项目(23KJA580004);校级研究生实践创新计划项目(XSJCX23_64)。

摘　　要：由于轮毂电机发热率较高,散热性能较差,电机温度过高会降低电机工作效率以及影响电机工作稳定性。本文利用Maxwell软件建立的轮毂电机电磁仿真模型得出了电机相应的热源损耗;通过温度场计算模型计算了电机各部件的生热率以及电机重要表面的换热系数;设计了一种冷却电机的双螺旋冷却通道结构,利用Ansys软件对电机温度场及冷却结构进行了模拟,分析了冷却前和冷却后的温度场分布。结果表明,该冷却结构能大幅度降低电机工作时产生的温升影响,相较于传统单水道结构,双水道结构冷却效果更佳,对轮毂电机散热系统研究具有一定的参考价值。Due to the high heating rate and poor heat dissipation performance of the wheel motor,too high motor temperature will reduce the working efficiency of the motor and affect the working stability of the motor.In this paper,the electromagnetic simulation model of wheel hub motor established by Maxwell software is used to get the corresponding heat source loss of motor.The heat generation rate of each part of the motor and the heat transfer coefficient of the important surface of the motor are calculated by the temperature field calculation model.A double helix cooling channel structure of cooling motor is designed.The temperature field and cooling structure of the motor are simulated by Ansys software,and the distribution of temperature field before and after cooling is analyzed.The results show that the cooling structure can greatly reduce the temperature rise of the motor,and the cooling effect of the two-channel structure is better than that of the traditional single-channel structure,which has a certain reference value for the research of the heat dissipation system of the wheel motor.

关 键 词：电动汽车 轮毂电机 损耗计算 温度场 水冷散热 

分 类 号：TM3[电气工程—电机]