Title:
ROTARY ELECTRICAL MACHINE AND VEHICLE PROVIDED WITH ROTARY ELECTRICAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2012/011493
Kind Code:
A1
Abstract:
Disclosed is a rotary electrical machine comprising: a stator core which has a plurality of slots formed therein; slot conductors which are inserted into the slots in the stator core and comprise any one of a plurality of layers; a multi-phase stator winding which has a plurality of wave-wound circumferential windings formed from cross-over conductors that comprise coil ends and effect connection between adjacent same-side end sections of slot conductors inserted into different slots; and a rotor which is rotatably supported with respect to the stator core with a gap therebetween. If the slot number of each pole is taken as N, the cross-over conductors span the slots at a slot pitch of Np = N + 1 at one of the coil ends, and effect connection between slot conductors so as to span the slots at a slot pitch of Np = N - 1 at the other coil end. The stator winding has a plurality of single-group slot conductor groups formed by a plurality of slot conductors of the same phase. A plurality of slot conductors of the slot conductor groups are inserted in such a way that the slots and layers in a prescribed number (Ns) of slots arranged next to each other continuously in the stator-core circumferential direction are adjacent. If the number of slots of each phase of each pole is taken as NSPP and the number of layers is taken as 2 × NL, the prescribed number (Ns) is set to Ns = NSPP + NL.
Inventors:
SAITO YASUYUKI (JP)
HINO NORIAKI (JP)
KAIMORI TOMOAKI (JP)
NAKAYAMA KENICHI (JP)
MORI YOSHIMI (JP)
ODA KEIJI (JP)
HINO NORIAKI (JP)
KAIMORI TOMOAKI (JP)
NAKAYAMA KENICHI (JP)
MORI YOSHIMI (JP)
ODA KEIJI (JP)
Application Number:
PCT/JP2011/066444
Publication Date:
January 26, 2012
Filing Date:
July 20, 2011
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
SAITO YASUYUKI (JP)
HINO NORIAKI (JP)
KAIMORI TOMOAKI (JP)
NAKAYAMA KENICHI (JP)
MORI YOSHIMI (JP)
ODA KEIJI (JP)
SAITO YASUYUKI (JP)
HINO NORIAKI (JP)
KAIMORI TOMOAKI (JP)
NAKAYAMA KENICHI (JP)
MORI YOSHIMI (JP)
ODA KEIJI (JP)
International Classes:
H02K3/28; B60L50/16; H02K21/14
Foreign References:
| JPH05227688A | 1993-09-03 | |||
| JP2004364464A | 2004-12-24 | |||
| JP2004166316A | 2004-06-10 | |||
| US6894417B2 | 2005-05-17 | |||
| JP2010163100A | 2010-07-20 |
Other References:
See also references of EP 2597754A4
Attorney, Agent or Firm:
NAGAI, Fuyuki (JP)
Fuyuki Nagai (JP)
Fuyuki Nagai (JP)
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Claims: