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Patent Searching and Data


Title:
ROTATING ELECTRIC MACHINE, AND VEHICLE EQUIPPED WITH ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2013/108680
Kind Code:
A1
Abstract:
In this rotating electric machine, slot conductors are connected together such that each cross-over conductor of a stator extends across the slots at a slot pitch of Np = N + 1 at one coil end while extending across the slots at a slot pitch of Np = N - 1 at the other coil end, where the number of slots per pole is N. Each stator winding has a set of multiple slot conductor groups, each comprising slot conductors of the same phase. The multiple slot conductors in each slot conductor group are inserted in a predetermined number (Ns) of slots, which are continuously arranged in the circumferential direction of a stator core, such that the slots and layers of the slot conductors are arranged adjacent to each other. The predetermined number (Ns) is set to Ns = NSPP + NL, where the number of slots per pole per phase is NSPP and the number of the layers is 2 × NL. A rotor has variable magnetoresistance sections inside magnetic auxiliary salient pole sections at positions displaced in the circumferential direction from respective q-axes that pass through the pole centers of the respective magnetic auxiliary salient pole. The amounts of the displacement of the variable magnetoresistance sections from the q-axes vary according to the positions of the magnetic auxiliary salient poles so as to cancel out torque ripples with each other when electric power is applied.

Inventors:
SAITO YASUYUKI (JP)
HAMANO HIROSHI (JP)
KOBAYASHI RYOJI (JP)
IKEDA TAISUKE (JP)
KANO YUJI (JP)
Application Number:
PCT/JP2013/050183
Publication Date:
July 25, 2013
Filing Date:
January 09, 2013
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02K1/22; B60L50/15; B60L50/16; H02K1/16; H02K3/04; H02K3/28
Foreign References:
JP2004364464A2004-12-24
JPH05227688A1993-09-03
JP2010098830A2010-04-30
JP2008141803A2008-06-19
Attorney, Agent or Firm:
NAGAI, Fuyuki (JP)
Fuyuki Nagai (JP)
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Claims: