工程设计学报2024，Vol.31Issue(6)：733-740,8.DOI:10.3785/j.issn.1006-754X.2024.03.411
内腔油冷机壳自然风冷驱动电机冷却性能研究
Research on cooling performance of natural air-cooled drive motor with internal oil-cooled chassis
摘要
Abstract
Aiming at the problems of permanent magnet synchronous motors with high power density,large torque and small volume for vehicle driving,such as small effective heat dissipation area of traditional air-cooled structure and high temperature of internal components caused by electromagnetic loss during operation,an oil-air hybrid cooling method with natural air cooling of internal cavity oil-cooled chassis was proposed,to meet the temperature performance requirements of each component in the drive motor.The equivalent thermal network method was used to calculate the temperature of the stator winding,stator,permanent magnet and rotor in the drive motor under different working conditions,and the highest temperature of the drive motor appeared at the stator winding.Then,the temperature at the stator winding end of the drive motor was measured by experiment and compared with the simulation results.The relative error between the simulation results and the measured results was less than 5%.The results showed that the temperature of the stator winding and other components of the oil-air hybrid cooling drive motor under different working conditions dropped obviously and met the temperature performance requirements,which indicated that the oil-air hybrid cooling method had good heat dissipation performance and high cooling efficiency.The research results can provide reference for the development of heat dissipation systems for vehicle drive motors.关键词
驱动电机/损耗/温度/油风混合冷却/冷却性能Key words
drive motor/loss/temperature/oil-air hybrid cooling/cooling performance分类
交通工程引用本文复制引用
黄泽好,谢彦景,张霄霆,曹永鹏,李东..内腔油冷机壳自然风冷驱动电机冷却性能研究[J].工程设计学报,2024,31(6):733-740,8.基金项目
重庆市教委科研项目(KJQN20181101) （KJQN20181101）
重庆市研究生导师团队项目(渝教研发[2018]6号) （渝教研发[2018]6号）
