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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 (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
齋藤 泰行 (〒03 茨城県ひたちなか市高場2520番地 日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
HINO, Noriaki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
日野 徳昭 (〒03 茨城県ひたちなか市高場2520番地 日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
KAIMORI, Tomoaki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
貝森 友彰 (〒03 茨城県ひたちなか市高場2520番地 日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
Application Number:
JP2011/066444
Publication Date:
January 26, 2012
Filing Date:
July 20, 2011
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
日立オートモティブシステムズ株式会社 (〒03 茨城県ひたちなか市高場2520番地 Ibaraki, 〒3128503, JP)
SAITO, Yasuyuki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
齋藤 泰行 (〒03 茨城県ひたちなか市高場2520番地 日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
HINO, Noriaki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
日野 徳昭 (〒03 茨城県ひたちなか市高場2520番地 日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
KAIMORI, Tomoaki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
H02K3/28; B60L11/14; H02K21/14
Attorney, Agent or Firm:
NAGAI, Fuyuki (Fukoku Seimei Building 2-2-2, Uchisaiwaicho, Chiyoda-k, Tokyo 11, 〒1000011, JP)
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Claims: