Title:
PERMANENT MAGNET MOTOR AND ROTOR
Document Type and Number:
Japanese Patent JP2020005459
Kind Code:
A
Abstract:
To provide a permanent magnet motor in which deformation and fracture of a rotor core at high speed rotation can be prevented, and a smooth induced voltage waveform can be obtained in a winding of a stator can be obtained, and to provide a rotor.SOLUTION: The rotor comprises: an outer peripheral side permanent magnet embedded in an outer peripheral side of a rotor core; and an inner peripheral side permanent magnet embedded in an inner peripheral side of the rotor core. The inner peripheral side permanent magnet comprises an inner peripheral side first permanent magnet and an inner peripheral side second permanent magnet which are separated from each other in the peripheral direction of the rotor core. The outer peripheral side permanent magnet is arranged so as to overlap the inner peripheral side first permanent magnet and an inner peripheral side second permanent magnet in the peripheral direction of the rotor core, and a first part of the rotor core between the inner peripheral side first permanent magnet and an inner peripheral side second permanent magnet has a width enabling shape of the rotor to be held against a centrifugal force of the rotor.SELECTED DRAWING: Figure 1
More Like This:
| JP2000014060 | ROTOR FOR MOTOR |
| JPS5347904 | MANUFACTURING METHOD OF FLAT TYPE ROTOR |
| JP6137521 | Rotation electrical machinery |
Inventors:
MATAKE KOZO
Application Number:
JP2018124777A
Publication Date:
January 09, 2020
Filing Date:
June 29, 2018
Export Citation:
Assignee:
EBARA CORP
International Classes:
H02K1/27; H02K1/22
Domestic Patent References:
| JP2014100048A | 2014-05-29 | |||
| JP2014121202A | 2014-06-30 |
Foreign References:
| WO2013098912A1 | 2013-07-04 |
Attorney, Agent or Firm:
Shinjiro Ono
Toru Miyamae
Yukio Kanegae
Naoki Ofusa
Makoto Watanabe
Toru Miyamae
Yukio Kanegae
Naoki Ofusa
Makoto Watanabe