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Title:
ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/131671
Kind Code:
A1
Abstract:
Provided is a rotating electric machine comprising a stator, and a rotor that is disposed opposing the stator at the inner side in the radial direction of the stator. The rotor comprises: a magnetic field core having at least one boss, a pair of discs, and a plurality of claw-shaped magnetic poles; a magnetic field winding that is disposed between the at least one boss and the claw-shaped magnetic poles; a plurality of permanent magnets, each being disposed between a pair of claw-shaped magnetic poles that are adjacent in the circumferential direction; and an annular fixing member that is fixed to a radially inner area of each claw-shaped magnetic pole opposing the at least one boss, and that supports the claw-shaped magnetic poles from the inside in the radial direction. The following circuits have a common circuit part that is at least partially common therebetween: a d-axis magnetic circuit, in which a magnetic flux generated by a magnetomotive force of the magnetic field winding flows via the at least one boss, the discs, the pair of claw-shaped magnetic poles, and a stator core; and a magnet magnetic circuit, in which a flux generated by a magnetic force of one corresponding permanent magnet flows. When a magnetic field current is supplied to the magnetic field winding, the permeance of the d-axis magnetic circuit is less than the permeance of a q-axis magnetic circuit.

Inventors:
TANIGUCHI MAKOTO (JP)
TAKAHASHI YUUKI (JP)
Application Number:
PCT/JP2018/000560
Publication Date:
July 19, 2018
Filing Date:
January 12, 2018
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H02K19/22; H02K1/14
Domestic Patent References:
WO2002027897A12002-04-04
Foreign References:
JP2014036483A2014-02-24
JP2009207333A2009-09-10
JPH11164499A1999-06-18
Attorney, Agent or Firm:
TOHDA, Kiyoshi (JP)
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