Title:
ROTOR AND ROTOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/199962
Kind Code:
A1
Abstract:
A rotor (12) is provided with: a rotor base section (21); and a plurality of permanent magnets (22) that are disposed in a circumferential direction on a side surface (21a) of the rotor base section (21). The permanent magnets are formed by magnets in a Halbach array. Each of the permanent magnets includes: d-axis magnet sections (22dn, 22ds) that are in both circumferential side sections and that have the magnetic fluxes thereof oriented principally in a radial direction; and a q-axis magnet section (22q) that is in a circumferential center section and that has a magnetic flux thereof oriented principally in the circumferential direction. The d-axis magnet sections and the q-axis magnet section are formed integrally as a single magnet member. The plurality of permanent magnets are disposed so that d-axis magnet sections are arranged side-by-side in series, such sections being of the same polarity and being sections of circumferentially adjacent permanent magnets.
Inventors:
SHIMADA KAZUNORI (JP)
MATSUMOTO KUNIAKI (JP)
HIRABAYASHI TAKASHI (JP)
MATSUMOTO KUNIAKI (JP)
HIRABAYASHI TAKASHI (JP)
Application Number:
PCT/JP2023/014946
Publication Date:
October 19, 2023
Filing Date:
April 13, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
H02K1/2783; H02K15/02
Domestic Patent References:
| WO2013008284A1 | 2013-01-17 |
Foreign References:
| JP2018107929A | 2018-07-05 | |||
| JP2021121153A | 2021-08-19 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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