Apparatus to remove foreign particles from heat transfer surfaces of heat sinks
US7348743B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2007 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Oct 30, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F19/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An apparatus including a power source, a system board, coupled to the power source and disposed within the computer, on which an electrical component, which controls operations of the computer, is installed, a heat sink including heat transfer surfaces which are configured to contact the electrical component and to thereby remove heat therefrom, a fan reversing control card coupled to the system board and configured to generate normal and reverse cycle rotation signals in predetermined intervals, and a fan coupled to the fan reversing control card and configured to receive the rotation signals and to thereby operate in normal and reverse cycles in which the fan rotates in first and second directions, respectively. The fan is disposed proximate to the heat transfer surfaces 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.