Title:
ROTOR, AND ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/228735
Kind Code:
A1
Abstract:
In one embodiment, this rotor is able to rotate about a central axis and comprises: a shaft extending in the axial direction; a rotor core fixed to the shaft; and an end plate arranged lined up in the axial direction with the rotor core. The shaft has a gap provided in the interior of the shaft, and a through hole connecting to the gap. The through hole has a first opening that opens on an outer peripheral surface of the shaft. The end plate has a first groove extending in the radial direction. The first groove has a second opening that opens on the reverse side from the side where the rotor core is located in the axial direction. A radially inward end of the first groove connects to the first opening. An inner surface of the first groove has a groove bottom surface located on the side where the rotor core is located in the axial direction. The groove bottom surface has a first surface that, going radially outward, draws increasingly apart from the rotor core in the axial direction.
Inventors:
MISE MASATORA (JP)
TAKADA HIBIKI (JP)
YOSHIOKA MASATO (JP)
UETANI TAKAHIRO (JP)
OSUGA SHOHEI (JP)
TAKADA HIBIKI (JP)
YOSHIOKA MASATO (JP)
UETANI TAKAHIRO (JP)
OSUGA SHOHEI (JP)
Application Number:
PCT/JP2023/017500
Publication Date:
November 30, 2023
Filing Date:
May 10, 2023
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K9/19; H02K1/32
Domestic Patent References:
| WO2011118062A1 | 2011-09-29 |
Foreign References:
| JP2013027244A | 2013-02-04 | |||
| JP2019193452A | 2019-10-31 |
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