High-frequency rotating structure with permanent magnet rotor having grooves and magnetic barrier spaces
US11646617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2021 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-frequency rotating structure provided by the invention has an annular rotating element with a quincuncial outer periphery, a plurality of radially arranged accommodating grooves respectively disposed in an annular body of the rotating element, a plurality of hole-shaped magnetic barrier spaces respectively disposed in the annular body, and respectively communicated with one of two ends of each of the accommodating grooves, and a plurality of magnetic assemblies respectively embedded in each of the accommodating grooves. A shortest first distance A between a groove wall of each of the two ends of each of the accommodating grooves and an outer annular surface of the body, and a shortest second distance B between a hole wall of each of the magnetic barrier spaces and the outer annular surface of the body are defined by the following formula 1:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.