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Title:
ROTOR
Document Type and Number:
WIPO Patent Application WO/2020/161960
Kind Code:
A1
Abstract:
Provided is a rotor that can improve torque and a rotational rate while maintaining mechanical strength. The present invention is provided with: a plurality of outer-diameter-side magnet grooves 12, 13; a plurality of inner-diameter-side magnet grooves 14, 15; a plurality of outer-diameter-side magnets 21, 22 that fit into the respective outer-diameter-side magnet grooves 12, 13; and a plurality of inner-diameter-side magnets 23, 24 that fit into the respective inner-diameter-side magnet grooves 14, 15. Where the radial length of recessed sections 12c, 13c that are closest to a d-axis among recessed sections 12a–12d, 13a–13d of the outer-diameter-side magnet grooves 12, 13 is Lb1, and the radial length of recessed sections 14d, 15d that are closest to the d-axis among recessed sections of the inner-diameter-side magnet grooves 14, 15, is Lb2, then Lb2 > Lb1 is satisfied.

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Inventors:
UENO SHUN (JP)
Application Number:
PCT/JP2019/039562
Publication Date:
August 13, 2020
Filing Date:
October 08, 2019
Export Citation:
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Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
H02K1/27
Foreign References:
US20080007131A12008-01-10
CN107565723A2018-01-09
CN104242509A2014-12-24
JP2016073056A2016-05-09
US20170179779A12017-06-22
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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