High speed train totally enclosed type permanent magnetic traction motor

Abstract

The invention relates to a permanent magnetic traction motor, to be specific, relates to a high speed train totally enclosed type permanent magnetic traction motor, which is used to solve the problems of the conventional totally enclosed type permanent magnetic motors such as poor cooling effect and inability of controlling internal even temperature rising of motor. The technical scheme provided by the invention is that a base is provided with axial air vents; end covers are provided with internal air ducts, which are connected with the base in a sealed manner, and the end covers, the internal air ducts, and the base air vents are used to form cooling wind paths in an encircled manner; the end covers are provided with cooling air inlet holes, and the outer sides are provided with cooling air outlet holes; two ends of a rotating shaft are fixedly provided with sealing discs, which are disposed between the end covers and the base, and are connected with the end covers in a sealed manner, and blades are fixedly disposed on the sealing discs between the cooling air outlet holes and the cooling air inlet holes; and self-circulation sectors are fixedly disposed on permanent magnet baffle plate clamping rings. The high speed train totally enclosed type permanent magnetic traction motor is advantageous in that 1, the three wind paths are used for the independent temperature control of the integral body of the motor; 2, the internal temperature rising of the motor is controlled in a balanced manner, and the overhigh temperature rising or the uneven temperature rising of the motor is prevented; 3, the independent cooling wind paths are designed for bearings, and then failure caused by the overhigh temperature of the bearings caused by thermal radiation and heat conduction is prevented.

Description

Technical field [0001] The invention relates to a permanent magnet traction motor, in particular to a fully enclosed permanent magnet traction motor for high-speed trains. Background technique [0002] Permanent magnet traction motor, as an important symbol of the development of high-speed trains towards high efficiency and energy saving, has always been a development trend. Permanent magnet motors are excited by permanent magnets and do not need current excitation, and rotor heating is greatly reduced; motor losses mainly come from stator windings and stator cores, making it possible for permanent magnet motors to adopt a fully enclosed structure; at the same time, to prevent dust, metal powder, and moisture , Acid, alkali and other foreign matter enter the motor, adsorb on the surface of the permanent magnet motor rotor and destroy the permanent magnet. The permanent magnet motor usually requires a fully enclosed structure. [0003] The motor adopts a fully enclosed structure, w...

AI Technical Summary

Problems solved by technology

[0006] The invention solves the problem that the existing fully enclosed permanent magnet motor has poor cooling effect and cannot con

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