Heat sink fan
US6924983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jan 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A heat sink fan comprises a heat sink (2) including a base member (21) and a plurality of thin heat radiating fins (22) fixed thereto, and a fan case (1) for supporting an axial flow fan (18) that induces air flow for cooling the heat sink (2). The fan case (1) includes an upper wall portion (11), at least one pair of engaging portions (12) depending from side edges of the upper wall portion (11), and a protruding portion (13) formed at the substantial middle portion of both end portions in the longitudinal direction of the upper wall portion (11). A thickness of one or more heat radiating fins (2) facing to the protruding portion (13) is larger than a thickness of other heat radiating fins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.