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Avionics Chassis

  • US 20100321890A1
  • Filed: 06/19/2009
  • Published: 12/23/2010
  • Est. Priority Date: 06/19/2009
  • Status: Active Grant
First Claim
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1. An avionics chassis comprising:

  • a housing defining an interior and having opposing walls;

    a card rail assembly comprising a pair of spaced rails, with each rail mounted to an opposite one of the opposing walls in thermal conductivity therewith, and each rail having a channel to define an effective slot having a predetermined height extending between the rails;

    a circuit card assembly comprising a printed circuit board and a thermal plane in overlying relationship with the printed circuit board, with the printed circuit board defining a first primary plane, and the thermal plane defining a second primary plane;

    wherein the spatial relationship between the printed circuit board and the thermal plane is such that the first and second primary planes are located within the slot when the circuit card assembly is mounted to the card rail assembly and the thermal plane is conductively coupled to at least one of the rails to form a first conductive path from the thermal plane to at least one of the opposing walls and the printed circuit board is conductively coupled to at least one of the rails to form a second conductive path from the printed circuit board to at least one of the opposing walls.

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