Title:
ROTOR AND METHOD FOR MANUFACTURING ROTOR
Document Type and Number:
WIPO Patent Application WO/2022/254679
Kind Code:
A1
Abstract:
This rotor comprises: a shaft; a rotor core assembly body having two rotor cores arranged in the axial direction of the shaft and attached to the outer circumferential surface of the shaft; magnets housed in the respective two rotors; and end plates disposed on both sides of the rotor core assembly body in the axial direction. The two rotor cores are respectively provided with insertion holes for the magnets. The rotor core assembly body has: an intermediate plate disposed between the two rotor cores and formed of a non-magnetic material; and a first fastening component fastening the two rotor cores and the intermediate plate to each other and having a projection portion projecting from the two rotor cores in the axial direction. The intermediate plate and the two rotor cores are provided with a first hole into which the first fastening component is inserted, wherein the diameter of the first hole of the two rotor cores is smaller than the diameter of the projection portion. The end plate is provided with a sidestep hole having a larger diameter than the diameter of the projection portion of the first fastening component. The end plate is provided so as to partially or entirely cover the insertion holes formed in the rotor cores. The projection portion of the first fastening component is disposed in the sidestep hole of the end plate. The rotor core assembly body is attached to the shaft in such a way that the two rotor cores are directly shrink-fitted to the shaft.
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Inventors:
FUJIMOTO KAZUKI (JP)
NABIKA RYO (JP)
TOKUHISA TAICHI (JP)
UCHIMURA RYUJI (JP)
ANAI SHINTARO (JP)
TSURUHA JUN (JP)
NABIKA RYO (JP)
TOKUHISA TAICHI (JP)
UCHIMURA RYUJI (JP)
ANAI SHINTARO (JP)
TSURUHA JUN (JP)
Application Number:
PCT/JP2021/021301
Publication Date:
December 08, 2022
Filing Date:
June 04, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/27
Foreign References:
| JPH04364335A | 1992-12-16 | |||
| JPH04118747U | 1992-10-23 | |||
| JP2013005595A | 2013-01-07 | |||
| JP2021069186A | 2021-04-30 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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