公开(公告)号：EP4395486A1

公开(公告)日：2024-07-03

申请号：EP22913939.9

申请日：2022-11-25

Applicant: BYD Company Limited

Inventor： LING, Heping ,  LIU, Haijun ,  ZHANG, Haixing ,  TAN, Xin ,  HUANG, Dandan

IPC: H05K7/20

CPC classification number: H05K7/20

Abstract: A cooling apparatus of a motor controller, a motor controller, and a vehicle are provided. The cooling apparatus includes a motor controller box body and a water pipeline cover plate mounted on the motor controller box body. The motor controller box body includes a water pipeline inlet, a water pipeline inlet inside the box body, an outlet inside the box body, and a water pipeline outlet. The water pipeline cover plate includes a water pipeline cover plate inlet, a power module inlet, a mounting groove, a power module outlet, and a water pipeline cover plate outlet. When a power module of the motor controller is mounted in the mounting groove, a heat-dissipation surface of the power module is mounted in tight contact with the mounting groove of the water pipeline cover plate to form a cooling accommodating cavity. The water pipeline inlet sequentially communicates with the water pipeline inlet inside the box body and the water pipeline cover plate inlet, and the water pipeline cover plate inlet communicates with the power module inlet, the cooling accommodating cavity, the power module outlet, the water pipeline cover plate outlet, the outlet inside the box body, and the water pipeline outlet. A pipeline of the motor controller is simple and highly adaptable, thereby resolving problems of uneven heat dissipation and a complex internal pipeline of the motor controller.