Dynamoelectric machine including displaceable flux-guiding elements
US10601271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2015 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Sep 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dynamoelectric machine having mechanical field weakening is provided. A design that is advantageous in terms of efficiency is brought about by a machine having a stator (1), a rotor (2) that is spaced from the stator (1) by an air gap (8), permanent magnets (4) for generating an exciter field in the air gap (8), which permanent magnets are arranged in magnet pockets (3) on the rotor (2), and displaceable flux-guiding elements (10) guided in radially extending grooves (12), wherein the density of the exciter field in the air gap (8) can be influenced by the radial position of the flux-guiding elements, and wherein the leakage flux-guiding elements (10) are arranged underneath the permanent magnets (4) when viewed in a radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.