Motor with good ventilation properties

Abstract

The present invention provides a motor with good ventilation properties. The motor comprises a motor winding. Each two adjacent teeth of the motor winding are provided with a ventilation channel. The technical points of the ventilation channel are that: a near shaft of the ventilation channel is arranged between two adjacent teeth of the motor winding, the remote shaft is extended to the outside of the motor winding, and deflected to one side to form a ''>'' type with the near shaft, and a prism are arranged between two adjacent shafts of the ventilation channel. According to the motor with good ventilation properties disclosed by the present invention, the ''>'' type formed by reverse deflection of the remote shaft and the near shaft of the ventilation channel is used to change a flow direction of the gas inside the motor, so that ventilation of the gas inside the motor is improved, convection is enhanced, and an effective cooling purpose is reached; and the prism is further added between the remote shaft of the ventilation channel to change flow condition of the fluid, thereby reducing eddy current losses, and enabling a flow form of the fluid to be better.

Description

Technical field: [0001] The invention belongs to the technical field of motor ventilation, and in particular relates to a motor with good ventilation performance. Background technique: [0002] During the operation of the motor, overload operation, phase advance operation, asymmetric operation and other conditions often occur. These abnormal operation conditions will cause local overheating of the motor. In addition, when each part of the motor fails, it will also cause an increase in the heat generation of the motor, which will bring a greater burden to the cooling system of the motor. The temperature rise of the motor not only determines the safety of the motor operation, but also seriously restricts the increase of the power density of the motor. At the same time, it also has a great impact on the efficiency, output, service life and other performance indicators and economic indicators of the motor. The ventilation structure of the existing medium-sized high-voltage asyn...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the technical problem of poor ventilation and cooling effect of the existing medium-sized high-voltage asynchronous motor, the present invention provides a motor with good ventilation performance, which changes the flow direction of the gas in the motor by reversely deflecting the far-axis end of the ventilation channel steel, so that The ventilation volume of the gas in the motor is increased and the convection is enhanced to achieve the purpose of effective cooling, and a pentagon is further added between the far-axis ends of the two ventilation channel steels to change the flow of the fluid, reducing the eddy current loss and making the fluid flow better shape

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