A rotor ( 11 ) is provided with: a main permanent magnet mounting layer ( 21 ) having a plurality of main permanent magnets ( 21 a ) mounted thereon; a first sub permanent magnet mounting layer ( 22 ) having a plurality of first sub permanent magnets ( 22 a ) mounted thereon; a second sub permanent magnet mounting layer ( 23 ) having a plurality of second sub permanent magnets ( 23 a ) mounted thereon; and a phase change mechanism capable, by turning at least either one of the first sub permanent magnet mounting layer ( 22 ) and the second permanent magnet mounting layer ( 23 ), and the main permanent magnet mounting layer ( 21 ) about the rotational axis, of changing the relative phase between the first sub permanent magnet mounting layer ( 22 ) and the second permanent magnet mounting layer ( 23 ), and the main permanent magnet mounting layer ( 21 ).

Claims

11 · 2 independent · depth 4

11 granted claims

›1.independentA motor comprising; a rotor capable of rotating about a rotational axis; and a first stator and a second stator that are arranged opposed to each othe…+7

A motor comprising; a rotor capable of rotating about a rotational axis; and a first stator and a second stator that are arranged opposed to each other in the rotational axis direction so as to sandwich said rotor from both sides thereof in said rotational axis direction, whereinnsaid rotor is provided with: a plurality of main permanent magnets arranged in a circumferential direction, with the magnetization direction thereof parallel with said rotational axis direction; and a first sub permanent magnet and a second sub permanent magnet arranged in the proximity of both end sections in said rotational axis direction of said main permanent magnet, with the magnetization direction thereof parallel with a direction orthogonal to said rotational axis direction and the radial direction, whereinamong two pairs of said first sub permanent magnet and said second sub permanent magnet:one pair of said first sub permanent magnet and said second sub permanent magnet is arranged in the proximity of an end section on one side in said circumferential direction of said main permanent magnet; andthe other pair of said first sub permanent magnet and said second sub permanent magnet is arranged in the proximity of an end section on the other side in said circumferential direction of said main permanent magnet, and whereinsaid rotor is provided with: a first sub permanent magnet mounting layer having said first sub permanent magnets mounted thereon; a main permanent magnet mounting layer that is laminated, in said rotational axis direction, on said first sub permanent magnet mounting layer and that has said main permanent magnets mounted thereon; and a second sub permanent magnet mounting layer that is laminated, in said rotational axis direction, on said main permanent magnet mounting layer and that has said second sub permanent magnets mounted thereon; andthere is provided a phase change device that, by turning at least either one of said first sub permanent magnet mounting layer and said second sub permanent magnet mounting layer, and said main permanent magnet mounting layer about the rotational axis, changes the relative phase between said first sub permanent magnet mounting layer and said second sub permanent magnet mounting layer, and said main permanent magnet mounting layer.

›2.↳ 1The motor according to claim 1, whereinnsaid phase change device is provided with:a fluid supply device that supplies a fluid; pressure chambers that …d2

›3.↳ 1The motor according to claim 1, whereinnsaid phase change device is provided with:a supporting member that, according to the magnetic force between sa…d2

›4.↳ 1The motor according to claim 1, whereinnthere is provided a connection section that integrally connects said first sub permanent magnet mounting layer…d2+4

›8.independentmultiple · 1, 4The motor according to any one of claim 1, and claim 4 through claim 9, wherein said main permanent magnet has a relatively higher residual magnetic f…+2

Classifications

5 codes

IPC · International Patent Classification

Section H — Electricity

H02K1/27

USPC · US Patent Classification

310/156.36310/156.35310/268310/209

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Pendency

3.8 y

1,383 days filing → grant

Office actions

non-final + final

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1 RCE

Examiner

Tran N Nguyen

art unit 2834 · TC 2800

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Citations: 14 back · 0 forward

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1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20090251021 A1	8 Oct 2009

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