油冷式扁线电机温度场及油环结构优化研究

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主题词：扁线绕组电动机油冷温度场油路结构中图分类号：U469.72 文献标志码：A DOI：10.19620/j.cnki.1000-3703.20240980

Temperature Field Calculation and Oil Ring Structure Optimization of Oil-Cooled Motor with Hairpin Winding

Li Dandan，Mao Jinlong，Tang Chengkun （Geely Auto Research Institute （Ningbo） Co.，Ltd.，Ningbo ）

【AbstractIInorder tosolve the problem oflong calculation timeoffluid-structure coupling thermal simulation in rated workingconditionofoil-cooled motor，thesimulationcalculationmethodofacelerating thermaldifusion insoliddomainis adopted，which greatlyreduces thecorespondingsimulationcalulation time.Andtheacuracyofthis methodisverified by comparing withthecurrent maturesteady-state simulationcalculation methodforrated workingconditions of water-cooled motor.Based on this method，an oil-cooled hairpin winding motor with rated power of 20kW is simulated，and the oil ring structure is optimized according to the simulation results.

Key Words： Hairpin winding，Motor，Oil cooling，Temperature field，Oil circuit structure

【引用格式】李丹丹，毛金龙，唐城琨.油冷式扁线电机温度场及油环结构优化研究[J].汽车技术，2025（9）：27-35. LIDD，MAOJL，TANGCK.TemperatureFieldCalculationandOilRingStructureOptimizationofOil-CooledMotorwith HairpinWinding[J]. Automobile Technology，2025（9）： 27-35.

1前言

高功率密度、低成本、高集成化和高效率是电机的核心需求。（剩余9741字）