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Title:
MAGNETIC GEAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/233573
Kind Code:
A1
Abstract:
This magnetic gear device (100) comprises: a magnetic gear (20) which has an inner magnet barrel (23) that is a few-pole mechanism, an outer magnet barrel (26) that is a multi-pole mechanism, and pole pieces (29) disposed at equal circumferential intervals between the inner magnet barrel (23) and the outer magnet barrel (26), and in which one among the inner magnet barrel (23), the outer magnet barrel (26), and the pole pieces (29) serves as a first rotor connected to an input part (21), another serves as a second rotor connected to an output part (22), and the remaining one serves as a stator; and a rotary electric machine (10) comprising a rotor (12) having a permanent magnet (13) and a stator (15) having teeth (16). Satisfied is at least one among: a first condition in which a first numerical value based on the least common multiple of the number of pole pieces (29) and the number of poles of one among the first and second rotors coincides with the least common multiple of the number of poles of the rotor (12) and the number of teeth (16); and a second condition in which the first numerical value coincides with a number obtained by multiplying a multiple of three to the number of poles of the rotor (12).

Inventors:
OKAZAKI KODAI (JP)
KITAO JUNJI (JP)
Application Number:
PCT/JP2022/022284
Publication Date:
December 07, 2023
Filing Date:
June 01, 2022
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K7/10
Domestic Patent References:
WO2012111440A12012-08-23
Foreign References:
JP2018127998A2018-08-16
JP2017166467A2017-09-21
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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