| 摘要 |
A traction motor 100 comprises a stator 10, a rotor core 4, an iron core holder 5, a cooling fan 30, a rotor 7, a frame 2, a bracket 1, and a bearing unit 50. The cooling fan 30 includes a main plate 31 that separates the inside and the outside of the totally-enclosed traction motor 100; blades 32 provided on the bracket 1 side of the cooling fan 30 and along a rotational direction of the rotor 7; and a guide 33 provided on the bracket 1 side of the blades 32. In the bracket 1, inlets 20 are provided within an area obtained when the guide 33 is projected onto the bracket 1. The guide 33 is formed such that air drawn in through the inlets 20 is guided to a rotor shaft 9. |
