Heat dispersion device for use in an electronic apparatus
US3961666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1973 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Nov 20, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/33
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A heat dispersion device for use in an apparatus having at least one heat-generating electronic element, such as, a power transistor, includes a thermally conductive heat dispersion member having a portion on which the heat-generating electronic element is mounted and a set of fins defining channels therebetween opening at the top and bottom of the set of fins, and a duct extending upwardly from the set of fins and communicating with the channels between the latter so that the generated heat is dispersed to air flowing upwardly in the channels and the heated air is conducted upwardly in the duct away from the heat dispersion member. For maximum effectiveness, the distance from the bottom of the set of fins to the top of the duct is made at least twice as large as the distance between the top and bottom of the set of fins. Further, the heat dispersion device may include a plurality of heat dispersion members, as aforesaid, assembled together with one or more ducts to provide a required heat dispersing capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.