Spoked rotor with inner structural bridges providing low flux leakage
US10312756B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor is provided for use in an electric motor. The rotor is rotatable about an axis. The rotor includes a core including a plurality of arcuately arranged pole segments arranged arcuately the axis. The rotor further includes a plurality of arcuately arranged magnets alternating with the pole segments, such that each of the magnets is at least in part interposed between a pair of adjacent pole segments. Still further, the rotor includes a support structure at least in part supporting the pole segments. The core further includes a plurality of bridges. Each of the bridges extends between and interconnects a corresponding one of the pole segments to the support structure. Each of the bridges includes a plurality of axially spaced apart bridge segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.