An electric power electronic device with dynamic vibration absorption function, an electric drive system and a vehicle

Abstract

The application relates to a power electronic device with a dynamic vibration absorption function, an electric drive system and a vehicle. The power electronic device comprises a power electronic box and a vibration absorption device. The electric drive system comprises a hub motor assembly, the power electronic device and a suspension. The suspension comprises a suspension shock absorber assembly, an upper control arm and a lower control arm. The suspension shock absorber assembly is connected to a vehicle body and the lower control arm. A wheel of the hub motor assembly is connected to a hub motor. The upper control arm is connected to an upper connecting frame and the vehicle body. The lower control arm is connected to a lower connecting frame and the vehicle body. The power electronic box is installed on the upper connecting frame. Compared with the prior art, the power electronic device uses its own weight as a vibration absorber to work. The vertical negative effect of the vehicle caused by excessive unsprung mass is improved without increasing the weight of the whole vehicle. The working direction of the power electronic device as a dynamic vibration absorber is fixed, and only the vertical bump is inhibited, and the power electronic device does not affect the wheel movement in other directions.

Images