Title:
ROTATING ELECTRIC MACHINE AND METHOD FOR MANUFACTURING ROTOR CORE
Document Type and Number:
WIPO Patent Application WO/2016/035191
Kind Code:
A1
Abstract:
[Problem] To increase the efficiency of a rotating electric machine.
[Solution] A rotating electric machine 1 has: a stator core 21; a rotor core 31 provided with a plurality of laminated steel sheets 37 and having an axial direction dimension Lr shorter than that of the stator core 21; and a permanent magnet 32 buried in the rotor core 31 and having an axial direction dimension Lm shorter than that of the rotor core 31. The rotor core 31 is structured by laminating the steel sheets 37 having a hardenability and been heat-treated. The stator core 21 has a plurality of teeth 23b around which stator windings 25 are wound and a connection part 23a for connecting the ends of the teeth 23b on the inner circumferential side in a cylindrical shape.
Inventors:
NONAKA TSUYOSHI (JP)
Application Number:
PCT/JP2014/073360
Publication Date:
March 10, 2016
Filing Date:
September 04, 2014
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK (JP)
International Classes:
H02K1/27; H02K1/22; H02K15/02
Foreign References:
| JPH11234931A | 1999-08-27 | |||
| JP2004260976A | 2004-09-16 | |||
| JP2009153230A | 2009-07-09 | |||
| JP2014093914A | 2014-05-19 | |||
| JP2011182488A | 2011-09-15 | |||
| JP2008036671A | 2008-02-21 | |||
| JP2010011640A | 2010-01-14 |
Attorney, Agent or Firm:
MASUDA Hirofumi et al. (JP)
Hirofumi Masuda (JP)
Hirofumi Masuda (JP)
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