Three -phase brushless DC motor

The utility model provides a three -phase brushless DC motor, include: electric motor rotor, motor stator and rear end cap, controller drive plate, controller board, electronics commutation device, heat conduction silica gel sheet and motor front end aluminium lid, electric motor rotor is fixed to be set up the one end of motor stator and rear end cap, the controller drive plate is fixed to be set up the other end of motor stator and rear end cap, the controller board with controller drive plate electricity is connected, electronics commutation device sets up on the controller drive plate, the controller drive plate is connected with motor front end aluminium lid through heat conduction silica gel sheet. The utility model discloses will the overall arrangement of electronics commutation device is arrived on the controller drive plate, the volume of three -phase brushless DC motor's controller board can be reduced greatly, the quantity of power connecting wire has also been reduced, simultaneously also can reduction in production cost.