Method of removing foreign particles from heat transfer surfaces of heat sinks
US7477027B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2008 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Jul 14, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F19/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An apparatus is provided and includes a power source, a system board on which an electrical component is installed, a heat sink including a plurality of heat transfer surfaces to contact the electrical component and to thereby remove heat from the electrical component, a fan reversing control card coupled to the system board and configured to generate normal and reverse cycle rotation signals, and a fan coupled to the fan reversing control card and configured to receive the normal and reverse cycle rotation signals and to thereby operate in normal and reverse cycles in which the fan rotates in first and second directions, respectively, the fan being disposed within the computer such that the first and second directional rotations of the fan generate air flows in first and second directions with respect to the heat transfer surfaces, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.