External winding controlled, two-degree-of-freedom, bearingless, switched reluctance motor
US11418097B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2019 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An external winding controlled two-degree-of-freedom bearing-free switched reluctance motor includes a stator and a rotor. An edge portion of the rotor includes rotor teeth. The stator includes an external winding and a stator core. The stator core includes four suspension teeth distributed in x and y directions on the same circumference of the radial outer side of the rotor and magnetism isolating bodies connected to two adjacent suspension teeth, each suspension tooth includes, along the axial direction of the rotor, a permanent magnet sheet and magnetically conductive sheets symmetrically connected to two sides of the permanent magnet sheet, torque teeth are connected to the inner walls of the magnetism isolating bodies, and torque windings are wound around the torque teeth. The external winding includes x-direction control cores connecting two suspension teeth in the x direction to form two x-direction symmetrical closed paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.