Radial folded fin heat sinks and methods of making and using same
US6657862B2 · kind B2 · utility
42Cited by
40References
59Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3011
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Non-prismatic radial folded fin heat sinks include fin arrays comprised of folded fins joined to a thermally conductive central core. The fin arrays can have either a constant or variable bend radius. The non-prismatic radial folded fins can be made by stamping patterns into sheet metal prior to folding the sheet metal in opposite directions at various intervals to form outer and inner folds. By arranging the fins in a non-prismatic radial pattern around the central core, airflow generated by an overhead fan is better utilized, thus improving the cooling effect of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.