Heat sink for an electronic device
US7143816B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2005 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A heat sink for an electrical device is distinguished by a confining plate extending parallel to and along each lateral side of fins and extending upwardly from a top surface of a base to a bottom surface of a lid to define an outlet-chamber extending from the outer ends of the fins and outside of the fins back toward a vertical nozzle. A cylindrical outlet is disposed on the inlet axis outwardly of each of the confining plates for directing fluid flow on each side of the fins. The outer wall presents a pair of oppositely facing apexes and the outer wall curves outwardly from each apex in opposite directions in a generally heart-shape around and spaced from the fins and back into the outlets to define the outlet-chambers which increase in volume from the ends of the fins back toward the outlets to reduce the fluid pressure. In an alternative embodiment, a horizontal nozzle is disposed between each of the outlets and the vertical nozzle for directing fluid flow horizontally into the fluid flow emitted from the vertical nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.