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Patent Searching and Data


Title:
ROTARY ELECTRIC MACHINE, METHOD FOR MANUFACTURING ROTARY ELECTRIC MACHINE, AND RAILWAY CAR
Document Type and Number:
WIPO Patent Application WO/2019/082473
Kind Code:
A1
Abstract:
The present invention provides a highly reliable fully-impregnated rotary electric machine, wherein a stator coil is received in a slot of a stator core and then an impregnation resin is impregnated into the stator coil and cured, and there is no gap between a wedge and a wedge groove. This fully-impregnated rotary electric machine, in which a stator coil is received in a slot of a stator coil and then an impregnation resin is impregnated into the stator coil and cured, is characterized by being provided with a wedge which is fitted into a groove provided adjacent to an opening of the slot and fixes the stator coil inside the slot, wherein at least one among an insulating resin different from the impregnation resin and a curing accelerator is supported on the surface of the wedge.

Inventors:
KOJIMA HIROAKI (JP)
IKEDA KENJI (JP)
HIRUTA NAOHIRO (JP)
KAMEGAWA DAISUKE (JP)
Application Number:
PCT/JP2018/029738
Publication Date:
May 02, 2019
Filing Date:
August 08, 2018
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
H02K3/34; H01F5/00; H02K3/48; H02K15/12
Foreign References:
CN102780297A2012-11-14
JP2003508004A2003-02-25
JPS60102833A1985-06-07
JP2016082762A2016-05-16
JPS63110937A1988-05-16
JPH07170684A1995-07-04
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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