Rotor for an electrical machine
US8624456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2009 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2795
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotor (300) for an axial-flux electrical machine is disclosed. The rotor has a plurality of permanent magnets (350) fixed thereto, with each of the plurality of magnets extending at least partly through an aperture in the rotor. The arrangement is such that material of the rotor (200) abuts each magnet (350) so as to locate the magnet substantially circumferentially with respect to the axis of rotation of the rotor and substantially axially in at least one axial direction. The magnets (350) may slide radially onto the rotor (300) and be constrained axially and circumferentially by a tongue-and-groove arrangement (325, 355), with reinforced tape (340) being wound around the radially outer edge thereof to provide radial constraint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.