Title:
MOTOR, AND METHOD FOR MANUFACTURING ROTOR
Document Type and Number:
WIPO Patent Application WO/2019/026173
Kind Code:
A1
Abstract:
This invention comprises a rotor, which includes a rotor core and magnets inserted into the rotor core, and a stator provided around the rotor core. The rotor core includes a shaft hole into which a shaft is inserted, and magnet insertion parts into which the magnets are inserted, the magnet insertion parts extending parallel to the direction of the rotation axis of the shaft and having an elongated shape in cross-section orthogonal to the direction of the rotation axis. The magnets include an outer peripheral surface in contact with a magnet insertion part of the rotor core. The magnet insertion parts include a projection projecting towards a magnet, the projection being formed on a longitudinal end part of the magnet insertion part in a cross-section orthogonal to the direction of the rotation axis. The projections include a top part in contact with the outer peripheral surface of a magnet and a set-apart part set apart from the outer peripheral surface of the magnet.
Inventors:
FUKUDA NAOYA (JP)
ISHIZONO FUMIHIKO (JP)
MASUMOTO KOJI (JP)
TAMURA YUKI (JP)
ISHIZONO FUMIHIKO (JP)
MASUMOTO KOJI (JP)
TAMURA YUKI (JP)
Application Number:
PCT/JP2017/027853
Publication Date:
February 07, 2019
Filing Date:
August 01, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/27
Foreign References:
| JP2013187943A | 2013-09-19 | |||
| JP2012085409A | 2012-04-26 | |||
| JP2012170190A | 2012-09-06 | |||
| JP2016197991A | 2016-11-24 | |||
| JP2000228838A | 2000-08-15 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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