High -efficiency motor

The utility model discloses a high -efficiency motor, including the motor cabinet body, the cooling fin muscle, the front and back end cover, the motor shaft, the motor fan, front and back bearing inner cup, preceding rear bearing end cover, in the front, be equipped with inner cup circumference flameproof joint surface between rear bearing inner cup and the motor shaft, periphery at the cooling fin muscle is equipped with a plurality of wind guiding cover, wind guiding cover and two cooling fin muscle form the wind -guiding chamber, in the front, the rear bearing end cover outside is equipped with sealing device respectively, this sealing device is including linking firmly at the epaxial rotating ring of motor, the suit is quiet ring inside and outside rotating ring both ends, be provided with the former on the rotating ring, the former both sides are equipped with movable sealing ring respectively, including, be equipped with the static seal ring on the medial surface of outer quiet ring, move, the static s