Title:
INTERIOR PERMANENT MAGNET ROTOR AND ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/188423
Kind Code:
A1
Abstract:
According to an embodiment of the present invention, an interior permanent magnet rotor (100) has a rotor shaft, a rotor core (120), permanent magnets (130), and two end plates. The rotor core (120) has a plurality of electromagnetic steel sheets (120a) stacked in a rotational axis direction and includes two permanent magnet storage holes (121) arranged in a radially outer portion apart from each other in the circumferential direction in a V-shape across each d-axis. The end plates have a smaller outer diameter than that of the rotor core, are disposed at both ends of the electromagnetic steel sheets in the rotational axis direction and prevent the permanent magnets (130) from protruding in the rotational axis direction. The permanent magnet storage holes (121) communicate with the outside of the outer circumferential surface of the rotor core (120). The plurality of electromagnetic steel sheets in neighboring areas of the end plates in the rotational axis direction of the rotor core (120) have connection parts (125) for connecting the electromagnetic steel sheets to each other.
Inventors:
MATSUBARA MASAKATSU (JP)
KANO MASARU (JP)
YAMAGISHI DAISUKE (JP)
SASAKI NAOYA (JP)
KANO MASARU (JP)
YAMAGISHI DAISUKE (JP)
SASAKI NAOYA (JP)
Application Number:
PCT/JP2022/016987
Publication Date:
October 05, 2023
Filing Date:
April 01, 2022
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H02K1/22
Domestic Patent References:
| WO2011114414A1 | 2011-09-22 | |||
| WO2011158316A1 | 2011-12-22 |
Foreign References:
| JP2013258849A | 2013-12-26 | |||
| JP5447418B2 | 2014-03-19 | |||
| JP2017158408A | 2017-09-07 | |||
| JP5447418B2 | 2014-03-19 |
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (JP)
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