Title:
ROTARY ELECTRICAL MACHINE, AND ROTOR FOR ROTARY ELECTRICAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/178227
Kind Code:
A1
Abstract:
Provided is a rotor for a rotary electrical machine in which the mechanical strength of the rotor against centrifugal force is increased. A rotary electrical machine provided with a stator, and a rotor having a rotor core (252) provided to the stator so that a gap is present, the rotor being provided with a magnet insertion hole and a permanent magnet (254) inserted into the magnet insertion hole; wherein a relief part (263) having a facing surface (266) formed so as to face the surface of the permanent magnet (254) with a gap present therebetween is provided at a portion of the magnet insertion hole corresponding to a corner part of the permanent magnet (254); the facing surface (266) of the relief part (263) has inflection points (264a-264d); and angles (267a, 267b) flanking two facing surfaces continuous with each of the inflection points (264b, 264c) are both formed to be obtuse.
Inventors:
KANO YUJI (JP)
HAMANO HIROSHI (JP)
SAITO YASUYUKI (JP)
KOBAYASHI RYOJI (JP)
UMESAKI YOSUKE (JP)
OSHIDA MANABU (JP)
HAMANO HIROSHI (JP)
SAITO YASUYUKI (JP)
KOBAYASHI RYOJI (JP)
UMESAKI YOSUKE (JP)
OSHIDA MANABU (JP)
Application Number:
PCT/JP2014/055902
Publication Date:
November 06, 2014
Filing Date:
March 07, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60L50/16; B60L50/15; H02K1/22; H02K1/27
Domestic Patent References:
| WO2013051617A1 | 2013-04-11 |
Foreign References:
| JP2008211934A | 2008-09-11 | |||
| JP2001016809A | 2001-01-19 | |||
| JP2012186889A | 2012-09-27 | |||
| JP2010178535A | 2010-08-12 | |||
| JP2011101504A | 2011-05-19 |
Other References:
See also references of EP 2993761A4
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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