Motor fan cover, motor

Abstract

The invention provides a motor wind cover and a motor, wherein the motor wind cover includes a wind cover shell, the wind cover shell has an air outlet and an air inlet opposite to the air outlet, on the axial section of the wind cover shell, The windshield shell has an air inlet diversion curve section inside the air inlet, an air outlet curve section inside the air outlet, and an inner chamber flare curve section between the inlet air diversion curve section and the outlet curve section. A smooth transition connection between the wind diversion curve section and the flaring curve section of the inner cavity, and between the flaring curve section of the inner cavity and the air outlet curve section. According to the present invention, on the axial section of the windshield shell, the windshield shell has a smooth transition connection of the air inlet diversion curve section, the inner cavity flare curve section and the wind outlet curve section, which can prevent the air from entering the air inlet. The air flow is guided to reduce the flow resistance of the air, thereby reducing the wind friction loss of the motor, improving the working efficiency of the fan and the heat dissipation capacity of the motor, and reducing the no-load loss of the motor and the temperature rise of the motor.

Description

technical field [0001] The invention belongs to the technical field of motor manufacturing, and in particular relates to a motor wind cover and a motor. Background technique [0002] The motor fan cover is a protection and heat dissipation device assembled at the tail of the motor. Its protection purpose is to protect the fan blades from damage and accidental contact damage caused by the high-speed operation of the self-cooling fan; the heat dissipation function is mainly to cooperate with the formation of the fan blades to form a Low pressure draws air inward from the air inlet, and forms high pressure in the circumferential direction of the inner wall of the windshield to blow air outward from the air outlet. [0003] There are some unreasonable heat dissipation in the traditional motor fan cover. When the wind enters, the high-speed airflow generated by the fan blades tends to flow out from the rear of the fan cover, which will reduce the pressure generated by the fan bla...

AI Technical Summary

Problems solved by technology

[0003] There are some unreasonable heat dissipation in the traditional motor fan cover. When the wind enters, the high-speed airflow generated by the fan blades will easily flow out from the tail of the fan cover, which will reduce the pressure generated by the fan blades on the inner wall of the fan cover and reduce the flow rate of the air outlet.

Images