关键词: 油冷电机, 越野, 喷淋, 高效散热, 流体仿真

Abstract: Oil-cooled motor uses cooling oil as cooling medium, through spraying, so that the oil directly exchanges heat with the stator and rotor, can achieve better cooling effect. An oil-cooled motor scheme developed under off-road conditions was introduced, in which the design of the oil circuit, could spray the oil more evenly and stably to the winding and stator, and fully cool the heat source in the motor. Even if the inclination angle of the motor changed during operation, it couldn’ t affect the cooling and oil collection effect, so that the vehicle could better adapt to complex terrain without affecting performance. Through simulation and experiment, the spray effect and motor temperature rise of the scheme were analyzed and verified. Compared to water-cooled motors, the cooling effect was improved by 28%.

Key words: oil-cooled motor, off-road, spray, efficient heat dissipation, fluid simulation