基于Flow Simulation的开启式电机散热结构优化设计研究

Research on Optimal Design of Heat Dissipation Structure of Open-Opening Motor Based on Flow Simulation

摘要: 本文以开启式IP21四级电机为研究对象，针对如何提高该电机散热能力的问题，在Solidworks中建立开启式电机模型并在Flow Simulation中对电机进行流体仿真，通过正交试验设计，将电机外壳的散热孔数量、位置和电机的风扇叶片半径作为正交试验因素，以流体仿真得到的电机外壳的温度为试验指标对电机的散热结构进行优化。研究结果表明在电机外壳的散热孔数量为22个、散热孔位置为上部与中部(平均分布)、风扇叶片半径为69 mm的组合下电机外壳的温度最低，电机外壳温度为43.18℃。

Abstract: Taking the open IP21 four-stage motor as the research object, aiming at the problem of how to im-prove the heat dissipation capacity of the motor, this paper establishes an open motor model in Solidworks and performs fluid simulation on the motor in Flow Simulation, and through orthogonal experimental design, the number and position of the heat dissipation holes of the motor shell and the radius of the fan blades of the motor are taken as orthogonal test factors, and the temperature of the motor shell obtained by fluid simulation is used as the test index to optimize the heat dissi-pation structure of the motor. The results show that the temperature of the motor casing is the lowest when the number of heat dissipation holes is 22, the position of the heat dissipation holes is the upper and middle parts (evenly distributed), and the radius of the fan blades is 69 mm, and the temperature of the motor casing is 43.18˚C.