Title:
ROTOR
Document Type and Number:
WIPO Patent Application WO/2023/199963
Kind Code:
A1
Abstract:
This rotor (12) comprises a rotor base portion (21), and a plurality of permanent magnets (22) arranged along the circumferential direction on a side surface (21a) of the rotor base portion. The permanent magnets are configured from Halbach array magnets. The permanent magnets include d-axis magnet portions (22dn, 22ds) and q-axis magnet portions (22q, 22q1, 22q2) alternately arranged in the circumferential direction. The magnetic flux of the d-axis magnet portions is mainly oriented in the radial direction. The magnetic flux of the q-axis magnet portions is mainly oriented in the circumferential direction. In the q-axis magnet portions of the permanent magnets, a coercive force (Hc) of at least a surface-side section (22b) thereof is set higher than that of the d-axis magnet portions.
Inventors:
SHIMADA KAZUNORI (JP)
MATSUMOTO KUNIAKI (JP)
HIRABAYASHI TAKASHI (JP)
MATSUMOTO KUNIAKI (JP)
HIRABAYASHI TAKASHI (JP)
Application Number:
PCT/JP2023/014947
Publication Date:
October 19, 2023
Filing Date:
April 13, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02K1/2783
Foreign References:
| JP2008104278A | 2008-05-01 | |||
| JP2010130818A | 2010-06-10 | |||
| JP2016029880A | 2016-03-03 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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