Adhesive mixture including hard magnetic material for e-machine rotor
US11637467B2 · kind B2 · utility
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1References
6Claims
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Assignee
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Key dates
| Filing date | Sep 11, 2019 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Jul 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/276
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor for an electric machine includes a core comprised of stacked laminations that define pockets between a hub portion and a pole portion. Each of the pockets are configured to receive magnetic material and define center cavities between regions of magnetic material to eliminate a flux leakage path between the magnetic materials. A cured mixture including an epoxy and a magnetic powder is disposed within the center cavities. The magnetic material may include sintered magnets and a cured mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.