电动汽车驱动电机零部件的结构优化与热管理

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中图分类号：U469.72 文献标识码：A 文章编号：1003-8639（2025）11-0024-03

Structural Optimizationand Thermal Management of Electric Vehicle Drive Motor Componen

Lai Jie,Li Hong (TaiyuanRailwayMachinerySchool,TaiyuanO3ooO6,China)

【Abstract】To meet the demands of electric vehicles for range and power,drive motors are developing towards higher power density. However,due to the sharp increase in internal heat generation,problems such as insulation aging anddemagnetizationof permanent magnetsoccur,threatening thesafetyandlifespanof themotors.Thisarticleanalyzes the applicationlimitations oftheexistingaircoling、liquidcoolingandoilcooling technologiesfordrive motors,xplores the corelation between the structures of key components such as stators and rotors and the heat dissipation paths, proposes a structure-thermal management collaborative optimization strategy based on multi-physical field coupling, constructs a multi-objective optimization modelby combining genetic algorithms and particle swarm optimization algorithms,and verifiesthe feasibilityof the scheme through ANSYSfinite element simulationand experiments.The results showthatthis strategycaneffectively balance motorlightweighting,low temperatureriseand highreliability, providing areference for the developmentof the next generationof high-performance electric vehicle drivesystems.

【Key Words 】electric vehicle;drive motor;thermal management;structural optimization;multi-physics ield coupling

0 引言

在全球碳中和目标驱动与绿色发展战略的双重引领下，汽车产业正经历着前所未有的电气化变革浪潮。（剩余4806字）