Ceiling fan motor
US7612475B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 28, 2007 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Jan 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/2791
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ceiling fan motor includes a housing having top and bottom casing parts, a stator disposed in the housing and having a stator axis, and a rotor unit including a mounting seat that has an inner tubular wall surrounding the stator, an outer tubular wall spaced apart from and surrounding the inner tubular wall, and an intermediate web interconnecting the inner and outer tubular walls. The outer tubular wall is connected between the top and bottom casing parts. The rotor unit further includes a rotor supported by the inner tubular wall. The top and bottom casing parts have peripheral ends respectively overlapping top and bottom ends of the outer tubular wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.