Rotor with first and second permanent magnets having support members and slots
US11462960B2 · kind B2 · utility
0Cited by
51References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor apparatus for a permanent-magnet motor has the main technical feature of a ring rotor with its magnets arranged according to the Halback magnetic ring array. In addition, for a distance between magnets of a parallel array and the outer ring edge of the rotor, and for a diameter difference between the inner and outer diameters of the ring rotor, a ratio between said distance/said diameter difference is between 0.43 and 0.48.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.