Cooling fan structure
US6416300B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Aug 25, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D25/062
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling fan structure installed in a system or a device necessitating radiation, cooling or convection, especially applied to the central processing unit of a computer for forced convection. The cooling fan structure includes a fixed base seat, a rotary vane assembly and a protective cover. The vane assembly and the fixed base seat contact with each other at one single point and an air bearing is formed to retain the vane assembly so that almost no contact abrasion will take place and the noise is minimized and the rotational speed can be increased. The cooling fan structure is manufactured at low cost and can be easily assembled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.