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Patent Searching and Data


Title:
ROTOR AND ROTATING ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/114075
Kind Code:
A1
Abstract:
A rotor according to the present invention is provided with: a rotor core (22) that includes a plurality of laminated core sheets (30) and that has a plurality of magnet accommodation holes (24) in a folded shape protruding radially inward; and permanent magnets (23) embedded in the magnet accommodation holes of the rotor core. Each of the plurality of core sheets includes: first magnet through-holes (31) each having a linking section (31c, 61) for linking inner peripheral portions that face each other in the hole width direction at an intermediate point of the folded shape corresponding to each of the magnet accommodation holes; and second magnet through-holes (32) without the linking section (31c, 61). The plurality of core sheets have the same configuration. The plurality of core sheets are laminated so that the first magnet through-hole and the second magnet through-hole are mixed in one magnet accommodation hole of the rotor core.

Inventors:
NAKAYAMA TAKAHIRO (JP)
HIRAMATSU RITSURO (JP)
UCHIDA TOSHIHIRO (JP)
SAKAI MASAHITO (JP)
Application Number:
PCT/JP2021/043258
Publication Date:
June 02, 2022
Filing Date:
November 25, 2021
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H02K1/2706
Domestic Patent References:
WO2020017262A12020-01-23
WO2014046228A12014-03-27
Foreign References:
JP2013090386A2013-05-13
JP2005287285A2005-10-13
JP2015220950A2015-12-07
JP2012023804A2012-02-02
JP2016152653A2016-08-22
JP2013081302A2013-05-02
JP2009153365A2009-07-09
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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