Thin fan structure
US7862309B2 · kind B2 · utility
9Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jul 9, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/626
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A thin fan structure is composed of a driving unit and a rotating unit. The driving unit has a base, a coil circuit board and a shaft, in which the coil circuit board is disposed at the base. The rotating unit has a bearing, a fan blade, an iron-containing metal sheet and a magnet, in which the bearing has an outer ring and an inner ring. The fan blade, the iron-containing metal sheet and the magnet are fixed at the outer ring of the bearing, the inner ring of the bearing is fixed at the shaft of the driving unit and the coil circuit board of the driving unit is able to drive the rotating unit turning around.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.