Efficiently-cooling motor with axial flow draft fan

Abstract

The invention relates to a motor, in particular to an efficiently-cooling motor with an axial flow draft fan. The efficiently-cooling motor with the axial flow draft fan solves the problems of low protection level, low low-speed heat-dissipating performance, large volume, heavy weight, small power and torque, low overload capacity and heat-dissipating difficulty of the conventional traction motor of the urban electric vehicles. The efficiently-cooling motor with the axial flow draft fan comprises a stator assembly, a rotor assembly, a shell, an end cover of a transmission end and an end cover of a non-transmission end, wherein a first flange is arranged at the transmission end of the shell; a second flange is arranged at the non-transmission end of the shell; the outer side end face of the second flange and the inner side end face of the end cover of the non-transmission end jointly enclose a transmission end cover air duct; and the axial flow draft fan is arranged in the transmission end cover air duct. The efficiently-cooling motor with the axial flow draft fan effectively solves the problems of low protection level, low low-speed heat-dissipating performance, large volume, heavy weight, small power and torque, low overload capacity and heat-dissipating difficulty of the conventional traction motor of the urban electric vehicles, and is applicable to traction of the urban electric vehicles.

Description

technical field [0001] The invention relates to a motor, in particular to a high-efficiency cooling motor with an axial flow exhaust fan. Background technique [0002] The core of an urban tram is the power drive system, which includes a controller and a traction motor. The special operating conditions of urban trams require that the traction motor has the characteristics of wide speed regulation range, large overload capacity, high peak power, small moment of inertia, excellent cooling and heat dissipation system, small size, light weight, and high protection level. The traction motors currently used in urban trams are mainly self-ventilating motors and fully enclosed motors. The self-ventilated motor can directly dissipate the internal heat of the motor, which has the advantages of high peak power, high overload capacity, small size, and light weight, but it has the disadvantage of low protection level. When working, the inside of the motor is directly connected to the o...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low protection level, poor low-speed heat dissipation performance, large volume, heavy weight, small power and torque, low overload capacity, and difficult heat dissipation of the existing traction motors of urban trams, the present invention provides a high-efficiency cooling motor with axial flow Exhaust fan motor

Images