Title:
DYNAMO-ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2008/012880
Kind Code:
A1
Abstract:
A dynamo-electric machine in which occurrence of poor insulation incident to
oxidation of a stator core is suppressed without decreasing the output, and temperature
rise of the stator is suppressed by transmitting heat generated from the stator
coil efficiently to the frame. The stator core is constituted by laminating and
integrating magnetic thin plates and has a tubular outer circumferential surface,
wherein a fitting groove is formed in the inner circumference of an opening of
the frame. The fitting groove is defined by an annular axial surface of a flat
surface intersecting the axis of the stator core perpendicularly, and by a radial
surface of a tubular surface having the axis of the stator core as a center. The
metal surfaces of magnetic thin plate at the opposite axial ends of the stator
core are pressure clamped under a tight contact state over the entire circumferences
of the respective axial direction surfaces of a pair of frames.
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Inventors:
OKAMOTO SHOGO (JP)
KASHIHARA TOSHIAKI (JP)
KASHIHARA TOSHIAKI (JP)
Application Number:
PCT/JP2006/314774
Publication Date:
January 31, 2008
Filing Date:
July 26, 2006
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
OKAMOTO SHOGO (JP)
KASHIHARA TOSHIAKI (JP)
OKAMOTO SHOGO (JP)
KASHIHARA TOSHIAKI (JP)
International Classes:
H02K5/04; H02K1/18; H02K19/24
Foreign References:
| JPH1094200A | 1998-04-10 | |||
| JP2002153008A | 2002-05-24 | |||
| JP2001275283A | 2001-10-05 | |||
| JPH04150746A | 1992-05-25 | |||
| JP2001211619A | 2001-08-03 | |||
| JP2001112197A | 2001-04-20 | |||
| JP2002186232A | 2002-06-28 | |||
| JPS6288442A | 1987-04-22 | |||
| JP2002186232A | 2002-06-28 |
Other References:
See also references of EP 2045896A4
Attorney, Agent or Firm:
SOGA, Michiteru et al. (8th Floor Kokusai Building,1-1, Marunouchi 3-chom, Chiyoda-ku Tokyo 05, JP)
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