Patent ID: 6011688
Filing Date: 2000-01-04
Classification: G06F,H05K

Abstract:
An apparatus cooling a plurality of circuit packs each having a respective longitudinal dimension and each having heat generating electronic components affixed to a respective surface of the circuit packs, comprising:a circuit pack cage having a plurality of parallel longitudinal slots for receiving the circuit packs;a plenum having a plurality of parallel longitudinal troughs, each trough having a respective elongated opening extending along a longitudinal dimension of the trough and perpendicular to the circuit packs for proximate fluid coupling along the longitudinal dimension of each of the circuit packs adjacent to the surfaces of the circuit packs, each trough further having a respective longitudinal extremity and a respective extremity opening proximate thereto; andan centrifugal impeller in direct fluid communication with the extremity openings of the troughs, so as to provide a cooling gas flow through the troughs and over the heat generating electronic components affixed to the surfaces of the circuit packs, wherein an inlet direction of the centrifugal impeller is substantially orthogonal to an exhaust direction of the centrifugal impeller.