Title:
ROTARY ELECTRICAL MACHINE ROTOR, ROTARY ELECTRICAL MACHINE, AND ELECTRICAL DRIVING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/219896
Kind Code:
A1
Abstract:
A rotor (10) of a rotary electrical machine (motor (100)) comprises: a magnet (12); and a rotor core (11) that has a storage space (13) of the magnet (12). The magnet (12) has a first magnetic pole surface (12A) located radially outward of where a main magnetic flux passes; a second magnetic pole surface (12B) opposed to the first magnetic pole surface (12A); and a q-axis-side surface that indicates a lateral surface on the q-axis side and that connects the first magnetic pole surface (12A) and the second magnetic pole surface (12B). The magnetizing direction of the magnet (12) is tilted to the d-axis side from an angle perpendicular to the first magnetic pole surface (12A). The q-axis-side surface is composed of a plurality of lateral surfaces, and, in the q-axis-side surface, one surface located radially outward is formed at an angle closer to the magnetizing direction, than other surfaces.
Inventors:
HORI MASAHIRO (JP)
ITAYA TAKAKI (JP)
GOTO HIDEAKI (JP)
ITAYA TAKAKI (JP)
GOTO HIDEAKI (JP)
Application Number:
PCT/JP2022/004675
Publication Date:
October 20, 2022
Filing Date:
February 07, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02K1/276; H02K1/22
Domestic Patent References:
| WO2010058609A1 | 2010-05-27 |
Foreign References:
| JP2019140893A | 2019-08-22 | |||
| JP2008206308A | 2008-09-04 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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