DRIVE MOTOR COOLING FAN WITH MULTIPLE COOLING FAN

摘要

The present invention relates to a multi-cooling fan equipped with a driving motor cooling fan, and more particularly, to a multi-cooling fan comprising a power member, which converts power energy into rotational energy; a motor unit, which includes a rotation axis combined to the power member; a first frame, which has a hole so that the rotation axis can be combined to the center; a first blade, which is combined to the outer periphery of the first frame to cool the motor unit; a second frame, which is combined to the outer periphery of the first blade, wraps the motor unit to be spaced, and has a tapered inner periphery wrapping the motor unit in order to guide air flow; and a cooling fan unit, which includes a second blade combined to the outer periphery of the second frame to have the same rotation direction and speed of the first blade. The multi-cooling fan equipped with a driving motor cooling fan of the present invention has the first blade to cool the motor unit, thereby reducing the heat of the motor unit. In addition, the first blade acts as a damper to reduce torque delivered from the rotation axis so that noise can be easily reduced.