Motor fan heat dissipation hub structure and cooling fan composed of same

Abstract

The invention discloses a motor fan heat dissipation hub structure and a cooling fan composed of the same. The motor fan heat dissipation hub structure comprises a fan hub, wherein a motor accommodating cavity is formed in the fan hub, the fan hub is provided with a plurality of ventilating grooves along the edge and is provided with ventilating holes, and the ventilating grooves are communicatedwith the ventilating holes through the motor accommodating cavity. The cooling fan comprises the motor fan heat dissipation hub structure, a fan body and a motor body, wherein a plurality of motor airinlets are formed in the bottom of a motor housing, a plurality motor air outlets are formed in the top of the motor housing, the motor housing is internally provided with gap channels for communicating the motor air inlets with the motor air inlets, the ventilating holes of the motor fan heat dissipation hub are communicated with the motor air outlets respectively. The heat produced by the motorbody forms an air flow circulation system through the motor air inlets, the motor air outlets, the ventilating holes and the ventilating grooves, so that the heat in the motor body is discharged to outside air under the condition of air flowing.

Description

technical field [0001] The invention relates to the technical field of hub structures and cooling fans, in particular to a motor fan cooling hub structure and the cooling fan formed therefrom. Background technique [0002] The car cooling fan is driven by the motor to cool the car engine. During the operation of the motor, various losses inside the motor cause its own heating and temperature rise. The rise of the motor temperature will affect the performance of the motor and shorten the life of the motor. Existing automobile cooling fans mainly rely on the fan inside the fan hub to radiate and cool the casing of the motor, which has little effect on the cooling of the heating element-armature inside the motor (although the motor has cooling holes), making the motor High temperatures are prone to occur. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a motor fan heat dissipation hub structure...

AI Technical Summary

Problems solved by technology

[0002] The car cooling fan is driven by the motor to cool the car engine. During the operation of the motor, various losses inside the motor cause its own heating and temperature rise. The rise of the motor temperature will affect the performance of the motor and shorten the life of the motor.

Existing automobile cooling fans mainly rely on the fan inside the fan hub to radiate and cool the casing of the motor, which has little effect on the cooling of the heating element-armature inside the motor (although the motor has cooling holes), making the motor prone to high temperature

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