关键词: 轴向磁通永磁电机, 混合冷却结构, 流固耦合, 温升

Abstract: In order to solve the problems of large loss and difficult heat dissipation of axial flux permanent magnet motor, air-cooled structure and hybrid cooling structure were proposed. The hybrid cooling structure consisted of end-cap air-cooled structure and stator water-cooled structure. The three-dimensional model of the motor was established, and the fluid-solid coupling method was used to simulate the motor. By comparing the cooling effect of two kinds of cooling structures, the hybrid cooling structure was selected as the cooling system of the motor. The effect of flow velocity on the temperature rise of the motor was analyzed by simulation, and the optimal inlet wind speed and water velocity of the hybrid
cooling structure were determined according to the simulation results, which proved the effectiveness of the hybrid cooling structure, and provided a certain reference for the cooling system design of the axial flux permanent magnet motor.

Key words: axial flux permanent magnet motor, hybrid cooling structure, fluid-solid coupling, temperature rise