Title:
ROTATING ELECTRICAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/131906
Kind Code:
A1
Abstract:
A rotating electrical machine (10) is equipped with: a rotor (40) comprising a magnet unit (42) having a plurality of magnetic poles, the polarity thereof alternating in the circumferential direction; and a stator (50) having a multiphase stator winding (51). The magnet unit has a configuration in which the easy axis of magnetization is oriented such that said orientation becomes close to parallel to the d-axis the closer to the d-axis in the circumferential direction. Specifically, the magnet unit includes a first magnet (146) that is disposed at prescribed intervals in the circumferential direction at each magnetic pole, and a second magnet (147) that is disposed in a position situated between adjacent first magnets in the circumferential direction and that has a magnetic pole which differs from the magnetic pole of the first magnet. Each of the first magnets and the second magnets has a configuration in which the easy axis of magnetization is oriented such that said orientation becomes close to parallel to the d-axis the closer to the d-axis in the circumferential direction.
Inventors:
TAKAHASHI YUKI (JP)
Application Number:
PCT/JP2018/048246
Publication Date:
July 04, 2019
Filing Date:
December 27, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02K1/27; H02K3/00; H02K21/14; H02K21/22; H02P29/00
Foreign References:
| JP2015211492A | 2015-11-24 | |||
| JP2004015906A | 2004-01-15 | |||
| JP2005117751A | 2005-04-28 | |||
| JP2017139945A | 2017-08-10 |
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (JP)
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