Permanent magnet motor
US11581764B2 · kind B2 · utility
0Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Apr 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor assembly for a permanent magnet motor includes a rotor stack of laminated ferromagnetic layers and partial end plates at opposite axial ends of the rotor stack wherein each axial end of the rotor bears two partial end plates, each of which covers a partial circle and does not axially overlap with the other one of the partial end plates at the same axial end. The two partial end plates of each axial end are formed by a first axial end plate shaped as a first partial ring disc and a second partial end plate shaped as a second partial ring disc that are made of stamped metal and that are of different mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.