Title:
EMBEDDED MAGNET TYPE ROTOR, MOTOR, AND ELECTRICAL APPLIANCE
Document Type and Number:
WIPO Patent Application WO/2020/017523
Kind Code:
A1
Abstract:
A magnet type rotor is provided with: a rotating shaft; a first rotor core in which are formed a first magnet embedding hole including a plurality of projecting portions which project out in an outer circumferential direction of the rotating shaft, and, in a central portion thereof, a cylindrical first axial hole; and two second rotor cores which are disposed at both ends, in the direction of the axis of rotation, of the first rotor core, and in each of which are formed a plurality of second magnet embedding holes and, in a central portion thereof, a cylindrical second axial hole. Bonded magnets are embedded in the first magnet embedding hole and the plurality of second magnet embedding holes. An outer peripheral contour line forming an opening portion of the first magnet embedding hole is disposed in a radial pattern in which the contour lines of the plurality of projecting portions are linked to one another, and a gear shaped opening portion is formed between the outer peripheral contour line and an inner peripheral contour line forming an inner peripheral portion of the first rotor core. The plurality of second magnet embedding holes are formed separated in the direction of the axis of rotation of the second rotor core.
Inventors:
OGAWA TAKASHI
TSUTSUMI SHINICHI
OKADA YUKIHIRO
YOSHIKAWA YUICHI
HIDAKA MASAHITO
TSUTSUMI SHINICHI
OKADA YUKIHIRO
YOSHIKAWA YUICHI
HIDAKA MASAHITO
Application Number:
PCT/JP2019/028001
Publication Date:
January 23, 2020
Filing Date:
July 17, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02K1/27
Domestic Patent References:
| WO2018101183A1 | 2018-06-07 |
Foreign References:
| JP2004129358A | 2004-04-22 | |||
| JP2013247783A | 2013-12-09 | |||
| JP2013121253A | 2013-06-17 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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