Title:
ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2017050913
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a technology capable of suppressing a temperature rise of a rotor.SOLUTION: A rotary electric machine 1 comprises: a stator core 11; a rotor 20 which opposes an inner peripheral surface of the stator core 11 with a cavity 90 of a predetermined interval interposed therebetween; and a wedge 12 for holding the stator coil 14 within a slot 13 formed on the inner peripheral surface of the stator core 11. In the wedge 12, a through-hole 121 is provided in an axial direction of the stator core 11. Cooling water is caused to flow into the through-hole 121, such that air flowing in the cavity 90 around the wedge 12 is cooled, and a temperature rise of the rotor 20 can be suppressed by the cooled air.SELECTED DRAWING: Figure 1
Inventors:
NAKAZONO HITOSHI
MASHITA AKIHIDE
MASHITA AKIHIDE
Application Number:
JP2015170304A
Publication Date:
March 09, 2017
Filing Date:
August 31, 2015
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
H02K1/20; H02K9/06; H02K9/19
Attorney, Agent or Firm:
Takashi Matsumoto
Naoya Goto
Naoya Goto