Chassis arrangement for reducing flame emissions
OwnerPaul A. Gliesman, Thomas W. Re +3inventors
InventorsPaul A. Gliesman, Thomas W. Re, Thomas C. Giles, Juzer Mohammed, Wayne F. Peters
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Abstract
A chassis arrangement that minimizes lateral flame spread from card to card within the chassis, and increases heat dissipation from the chassis, comprising a heat sink attached to the inside of the chassis cover to dissipate excess heat from within the chassis, and PCB shields disposed between the circuit cards of the chassis and acting in concert with the heat sink to act as physical and thermal barriers to prevent lateral flame spread from card to card due to flame and hot gas wrap-around.
Claims5
A chassis arrangement for reducing flame emissions, a chassis and chassis cover defining an internal compartment having printed circuit board (PCB) cards installed within, said chassis arrangement comprising:
- a heat sink thermally coupled to the bottom face of the chassis cover so as to allow the transmission of excess heat from the internal compartment through said heat sink and the chassis cover and to the environment;
- and
- PCB shields disposed between the PCB cards, said PCB shields acting as physical and thermal barriers between adjacent PCB cards, said PCB shields acting in concert with said heat sink to prevent or reduce lateral flame spread from PCB card to PCB card due to flame wrap-around and to direct excess heat toward said heat sink.
Dependencies are inferred from the claim text.