Heat sink
US9854706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Jun 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20154
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A heat sink includes a bottom surface, a top surface, plural first fins and plural second fins. The plural first fins and the plural second fins are alternately and separately arranged between the top surface and the bottom surface along a specified axis direction. Moreover, plural airflow channels are defined by the plural first fins, the plural second fins, the top surface and the bottom surface collaboratively. The first fin has a first non-overlapped zone and a second non-overlapped zone with respect to a projection area of the second fin along the specified axis direction. The first non-overlapped zone is located at an airflow inlet. In the first non-overlapped zone, the lower portion is wider than the upper portion. The second non-overlapped zone is located at an airflow outlet. In the second non-overlapped zone, the upper portion is wider than the lower portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.