Spoked rotor with tapered pole segments and tapered ear recesses
US10389196B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2017 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Nov 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor includes a plurality of arcuately arranged magnets and a core including a plurality of arcuately arranged pole segments alternating with the magnets, such that each of the magnets is at least in part interposed between adjacent pole segments. The pole segments at least in part cooperatively present an annular core face at least in part defining a core envelope. Each of the pole segments includes a main body and a pair of ears. The main body presents a body face extending concentrically with the axis, disposed along the envelope, and presenting a pair of arcuately spaced apart body edges. The ears each extend generally arcuately outwardly from a corresponding body edge and present a substantially flat ear face extending directly from the body edge. Each of the ear faces is disposed radially inside the envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.