电机液冷流道扰流片优化设计  

Optimal design of the spoiler in cooling channel of liquid-cooled motor

作　　者：郝嘉欣 唐志国[1] 李荟卿[1] 江超[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2016年第4期440-444,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家科技支撑计划资助项目(2013BAG13B00;2014BAG06B02)

摘　　要：电动汽车电机的体积小型化、功率高密度化以及工作环境相对封闭等特点,使得其产热和散热问题研究成为电机结构设计的重要课题。为了提高驱动电机的散热效果,文章以液冷电机为研究对象,提出在其定子冷却流道中加入扰流片进行传热强化,并设计了多种扰流片结构设计方案;对各种结构设计方案的电机定子进行三维建模,使用计算流体力学(computational fluid dynamics,CFD)软件进行温度场与流场的仿真,对比各方案的优劣,优化出扰流片的结构方案;使用Simulink软件对优化结构进行理论分析,并与CFD仿真结果对比,验证了优化结构的可行性。Due to compact volume, high power density and relatively closed working condition of the driving motor in electric vehicle, the production and dissipation of heat have become the important subiect in the motor design. In order to improve the cooling performance of the liquid-cooled driving motor, spoilers are proposed to add in the stator＇s cooling channels for enhancing heat transfer, and a variety of structural schemes of spoilers are designed. For all schemes, the three-dimensional models of the stators are built, and the temperature field and flow field of all schemes are simulated by the computational fluid dynamics （CFD） software. By comparing the strong and weak points of each scheme, the structural optimization of spoilers is made. Then the theoretical analysis of the most optimal scheme is carried out by Simulink software. The feasibility of the optimized structure is verified through comparing the calculation results with the CFD simulation results.

关 键 词：电动汽车 液冷电机 冷却流道 扰流片 热仿真 

分 类 号：TM351[电气工程—电机]