Rotating electric machine having magnetic wedge with planes and having differences in magnetic permeability
US11258327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Apr 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The magnetic wedge of embodiments is a magnetic wedge used for a rotating electrical machine and includes magnetic bodies having a planar structure having a principal plane. The principal planes of the magnetic bodies are disposed approximately perpendicularly to the air-gap surface between a stator and a rotor of a rotating electrical machine. The magnetic bodies have differences in the axial direction magnetic permeability in the axial direction of the rotating electrical machine, the rotational direction magnetic permeability in the direction of rotation, and the diametric direction magnetic permeability in the direction of the diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.