Fastener and heat sink assembly having the same
US7796390B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A heat sink assembly is mounted on a printed circuit board to dissipate heat generated by an electronic component. The heat sink assembly includes a heat sink and a plurality of fasteners fixing the heat sink to the printed circuit board. The fastener includes a head, a post extending downwardly from the head through the heat sink, an elastic member encircling the post and compressed between the head and the heat sink, and an engaging member fixed to the printed circuit board. A top of the engaging member is fastened to a bottom of the post. When the post, together with the head, is rotated relative to an axis thereof toward a locked position, the post would be driven by the engaging member to automatically lock with the engaging member at the locked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.