ROTOR UNIT, ROTATING ELECTRICAL MACHINE, AND METHOD FOR MANUFACTURING ROTOR UNIT

Title:

ROTOR UNIT, ROTATING ELECTRICAL MACHINE, AND METHOD FOR MANUFACTURING ROTOR UNIT

Document Type and Number:

WIPO Patent Application WO/2012/137464

Kind Code:

A1

Abstract:

A rotor unit includes a rotor core made of laminated steel sheets that are vertically laminated, and a holder made of resin. The rotor core and the holder are fixed by insert molding. For this reason, the process of manufacturing the rotor core and the holder is shortened. Additionally, in the outer peripheral surface of the rotor core, a portion of resin that constitutes the holder is present between the plurality of steel sheets that constitutes the rotor core. For this reason, the fixing strength of the rotor core and the holder improves. Additionally, since the separation between the rotor core and the holder is suppressed, the magnets can be easily press-fitted.

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Inventors:

HAGA HIDEHIRO (JP)
KAWAMOTO TATSURO (JP)
MURAKAMI SHUNSUKE (JP)

Application Number:

PCT/JP2012/002273

Publication Date:

October 11, 2012

Filing Date:

April 02, 2012

Export Citation:

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Assignee:

NIDEC CORP (JP)
HAGA HIDEHIRO (JP)
KAWAMOTO TATSURO (JP)
MURAKAMI SHUNSUKE (JP)

International Classes:

H02K1/27; H02K15/03

Domestic Patent References:

WO2010090303A1

2010-08-12

Foreign References:

JP2011067057A	2011-03-31
JP2010141993A	2010-06-24

Attorney, Agent or Firm:

KITAMURA, Hideaki (338 Kuzetonoshiro-cho, Minami-ku, Kyoto-sh, Kyoto 05, JP)

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