Permanent magnet embedded motor, compressor, and refrigerating and air conditioning apparatus
US10804754B2 · kind B2 · utility
0Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2015 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Sep 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet embedded motor includes a cylindrical stator core disposed on an inner side of a cylindrical frame and configured by stacking a first annular core and a second annular core disposed to be adjacent to the first annular core in an axial direction of the frame, and a rotor disposed on an inner side of the stator core. The second annular core is fixed to the first annular core by using swaging portions formed in the second annular core, and adjacent first yokes are in contact with each other, while adjacent second yokes are separated from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.