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1. (WO2014207966) MOTOR FOR VEHICLE AND RAILWAY VEHICLE

Pub. No.:    WO/2014/207966    International Application No.:    PCT/JP2014/000271
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Wed Jan 22 00:59:59 CET 2014
IPC: H02K 5/20
H02K 9/06
Applicants: KABUSHIKI KAISHA TOSHIBA
Inventors: NAGAYAMA, Takashi
ONUMA, Aki
Title: MOTOR FOR VEHICLE AND RAILWAY VEHICLE
Abstract:
According to one embodiment, a motor for a vehicle includes a casing accommodating a rotor iron core and a stator iron core inside thereof, and supporting each of both axial ends of the rotor shaft via a bearing such that the rotor shaft is rotatable, an air inlet port formed in a portion of the casing outside the bearing in the radial direction, and a fan provided between the rotor iron core and the bearing and rotating with the rotor shaft to introduce outside air through the air inlet port, wherein a portion of the casing positioned outside impellers of the fan in the axial direction forms a first housing and a second housing constituting a discharge channel through which the outside air is discharged, and the first housing includes a guide wall extending toward the outside in the radial direction, and the second housing includes a thinned wall portion located inside the guide wall in the axial direction to constitute the discharge channel between the thin wall portion and the guide wall.