Retention cap for permanent magnet rotor
US12255497B2 · kind B2 · utility
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20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2022 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Jun 30, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2773
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electric motor includes a core, a plurality of magnets, and a magnet retention cap. The core is rotatable about an axis and defines a plurality of magnet-receiving slots. Each of the magnets is received in a respective one of the magnet-receiving slots. The magnet retention cap is fixed relative to the core and includes a resiliently deformable magnet retention element configured to restrict axial movement of the magnets relative to the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.