Magnet- embedded rotor
US11929647B2 · kind B2 · utility
0Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2021 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Sep 6, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor has a rotor core made of a magnetic material, a permanent magnet provided in a magnet insertion hole of the rotor core, and a cushioning material. The cushioning material is provided at a location where a distance between a wall surface of the magnet insertion hole and the permanent magnet is the narrowest, on both sides in a rotational direction with respect to the permanent magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.