Telecommunications chassis having a repeater card
US7639510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2008 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jan 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09663
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A chassis and associated telecommunication circuit card are disclosed. The chassis has heat dissipation and flame containment features while accommodating a high density of the circuitry cards. Embodiments include an inner housing with a double-layer middle floor dividing the chassis into top and bottom chambers. Each layer has partially aligned slots, and an air gap is provided between the two layers. Embodiments also include a double-layer mesh cover with an air gap existing between the two mesh layers. Projections and grooves are provided on the inner surfaces of the inner housing to receive circuit cards having a guide on one edge and a fin on another. The circuit card includes conductor structures such as multiple board layers with paired and segregated conductors. The circuit card also includes some components positioned to cooperate with the ventilation features of the chassis and includes some components chosen for low-power consumption or reduced flammability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.