Thermal junction for card edges in a card cage and ground clip therefor
US5343361A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1993 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Jun 11, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermal junction (64) with an edge (106) of a daughter card (100) in a card cage enclosure (10). A front panel (50) of the enclosure includes an array of interior fins (58) extending to edges (60) adjacent the edges (106) of the array of daughter cards (100). Spring clips (62) mounted along the fin edges engage the card edges simultaneously upon the front panel (50) being placed in position, and spring arms (70) of each clip establish a plurality of assured thermal connections of the card edges with the fins, for the front panel (50) to dissipate heat from the circuit cards (100) to the exterior of the enclosure (10). With cards having a metal shielding layer (110), the spring clips (62) also define a ground to the enclosure wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.