Electric motor having a rotor with a burst-protection sleeve without an adhesion of the magnet elements
US12407203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2020 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Mar 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric motor having a stator and a rotor rotatably mounted about a rotational axis relative to the stator is disclosed. The rotor additionally has a main part, multiple magnet elements which are distributed along the circumferential direction and are received on a radial face of the main part in a mutually spaced manner, and a burst-protection sleeve which covers the main part and the magnet elements. The burst-protection sleeve has multiple cover segments, each of which directly contacts a magnet element, and multiple bridging regions which connect two adjacent cover segments together, wherein the burst-protection sleeve is used to directly support the magnet elements relative to the main part, and the bridging regions have a lower degree of flexural strength in the circumferential direction than the cover segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.