Bearing of electric fan driving motor

Abstract

The invention discloses a bearing of an electric fan driving motor and relates to the technical field of the bearings of the electric fan driving motors. The bearing comprises the electric fan drivingmotor, a rotary shaft, an electric fan driving motor shell and the like; an external bearing ring is fixed on an inner wall of the electric fan driving motor shell through a connecting block; a second limiting ring has a fixing effect on a hollow annular pipe; a limiting bulge has a limiting effect on an inner-layer bearing fixing ring and a rotary shaft penetrates into an inner-layer bearing ring; when the rotary shaft rotates, the inner-layer bearing ring is driven to rotate, and rolling rubbing is formed between the inner-layer bearing ring and a ball; the rubbing heat generated by the rolling rubbing is less, and cooling water in the second limiting ring has a relatively cooling effect on the hollow annular pipe so that parts, which are in contact with the hollow annular pipe to generate heat by rubbing, are certainly cooled; the heat dissipation load of the electric fan driving motor is effectively alleviated so that the service life of the electric fan driving motor is prolonged.

Description

technical field [0001] The invention relates to the technical field of bearings for electric fan drive motors, and specifically relates to a bearing for electric fan drive motors. Background technique [0002] An electric fan is a household appliance that uses a motor to drive the fan blades to rotate to accelerate the air circulation. It is mainly used for cooling and relieving heat and circulating air. It is widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. Electric fans are mainly It is composed of fan head, blades, net cover, drive motor and support frame, etc. When the fan is working, the actual indoor temperature has not been lowered, but because there is a lot of sweat on the human body surface, when the fan is working, the indoor air will flow. , so as to promote the rapid evaporation of sweat and absorb heat, so it gives people a cool feeling. The bearing of the electric fan drive motor supports and guides the rotation of the rota...

AI Technical Summary

Problems solved by technology

[0002] An electric fan is a household appliance that uses a motor to drive the fan blades to rotate to accelerate the air circulation. It is mainly used for cooling and relieving heat and circulating air. It is widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. Electric fans are mainly It is composed of fan head, blades, net cover, drive motor and support frame, etc. When the fan is working, the actual indoor temperature has not been lowered, but because there is a lot of sweat on the human body surface, when the fan is working, the indoor air will flow. , so as to promote the rapid evaporation of sweat and absorb heat, so it gives people a cool feeling. The bearing of the electric fan drive motor supports and guides the rotation of the rotating shaft. The bearing of the existing electric fan drive motor produces more due to internal sliding friction Heat, increasing the heat dissipation burden of the fan drive motor, resulting in shortened life of the fan drive motor

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