Title:
STATOR AND ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/100963
Kind Code:
A1
Abstract:
Provided is a stator that suppresses a decrease in the space factor of a stator coil inserted into a slot and is excellent in oilproof adhesion. The stator comprises: an annular stator core; a plurality of slots that are arranged in the circumferential direction on the inner circumferential side of the stator core and penetrate in the axial direction; an insulating body that is a plurality of sheet-like layers, the interlayers of which are each bonded by a first bonding method and is cylindrically wound along the inner wall of the slot in each of the plurality of slots; and a plurality of stator coils that are inserted inside the insulating body. In the insulating body, a first surface is bonded to the inner wall of the slot by a second bonding method and a second surface opposite the first surface is bonded to the stator coils by the second bonding method. In the insulating body, a part thereof is folded back in a direction vertical to the axial direction, the inner wall of the slot which the second surface of the folded-back portion faces has three sides or less, and at least a part of the second surface of the folded-back portion is bonded to the inner wall of the slot by the second bonding method.
Inventors:
MURAKI TAKAHITO (JP)
YAMAZAKI SHINJI (JP)
YAMAZAKI SHINJI (JP)
Application Number:
PCT/JP2023/030916
Publication Date:
May 16, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02K3/34; H02K3/30
Foreign References:
| JP2007274809A | 2007-10-18 | |||
| JP2014168330A | 2014-09-11 | |||
| JP2021141641A | 2021-09-16 | |||
| JP2021170565A | 2021-10-28 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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