Method of assembling low noise rotor or stator of an electric motor or generator
US8567043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | May 31, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49316
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stator or rotor of an electric motor or generator comprises a core formed of ferromagnetic material having a plurality of teeth arranged circumferentially about an axis. In one aspect of the invention, at least one retaining member connects the end portions of at least two of the teeth to each other in a manner inhibiting relative movement between said tooth end portions. By inhibiting relative movement between said tooth end portions, vibration is reduced. Vibration can also be reduced by welding interior surfaces of a core to each other. Reducing the vibration reduces the noise emissions of the rotor or stator during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.