Title:
ROTOR UNIT, ROTATING ELECTRICAL MACHINE, AND METHOD OF MANUFACTURING ROTOR UNIT
Document Type and Number:
WIPO Patent Application WO/2012/137465
Kind Code:
A1
Abstract:
The rotor unit has a plurality of rotating bodies which is arranged along a central axis. Each of the plurality of rotating bodies has an annular rotor core which surrounds the central axis, a plurality of magnets which is arranged in the circumferential direction around the rotor core, and a holder which holds the magnets. Further, the holder has a plurality of partitioning portions each axially extending between the magnets. The axial dimension of the partitioning portion is longer than the axial dimension of the magnet which is held by the partitioning portions. Further, the plurality of rotating bodies is disposed in a state where the circumferential positions of the plurality of magnets are out of alignment. In this way, contact between the magnets is prevented by the partitioning portion. Therefore, damage to each magnet is suppressed.
Inventors:
NAKANISHI KEITA (JP)
MIGITA TAKAYUKI (JP)
AONO MASATO (JP)
HAGA HIDEHIRO (JP)
MIGITA TAKAYUKI (JP)
AONO MASATO (JP)
HAGA HIDEHIRO (JP)
Application Number:
PCT/JP2012/002274
Publication Date:
October 11, 2012
Filing Date:
April 02, 2012
Export Citation:
Assignee:
NIDEC CORP (JP)
NAKANISHI KEITA (JP)
MIGITA TAKAYUKI (JP)
AONO MASATO (JP)
HAGA HIDEHIRO (JP)
NAKANISHI KEITA (JP)
MIGITA TAKAYUKI (JP)
AONO MASATO (JP)
HAGA HIDEHIRO (JP)
International Classes:
H02K1/27; H02K15/03; H02K16/02
Domestic Patent References:
| WO2010090303A1 | 2010-08-12 |
Foreign References:
| JP2010141993A | 2010-06-24 | |||
| EP0569594A1 | 1993-11-18 |
Attorney, Agent or Firm:
KITAMURA, Hideaki (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, JP)
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Claims: