To solve the problem that a space on a teeth part of a stator is partially short-circuited, that a cooling medium containing much oil is not sufficiently separated and is discharged and that system efficiency is deteriorated when circulating the cooling medium in a path formed of a gap consisting of a rotator part and a stator inner side and a path arranged between the stator and a body shell being a pressure container holding the stator.
An end of a wedge 10 preventing extrusion from a slot 9 and performing insulation in a winding 8 wound to the teeth part 1A of the stator 1 of a motor is extended in an axial direction and is expanded in a circumferential direction. Thus, the space 12 on a teeth part end face, which occurs in a coil end 15, is blocked, short-circuit of a cooling medium gas path is eliminated and oil discharge is reduced.
| JP2002101593 | COIL FIXING STRUCTURE OF ROTARY ELECTRIC MACHINE |
| JPS5635648 | DEVICE FOR FIXING WINDING CONDUCTOR |
Hiroki Naito
Daisuke Nagano