Compact apparatus for cooling a plurality of circuit packs arranged with a cage
First Claim
1. 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; and
an 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.
3 Assignments
0 Petitions
Accused Products
Abstract
A compact apparatus for cooling circuit packs disposed in a supporting cage, while providing a substantially uniform flow of coolant at enhanced volume and static pressure, and while reducing ambient noise level. The invention includes a circuit pack cage having a plurality of parallel longitudinal slots for receiving the circuit packs and for arranging the circuit packs in parallel with one another. A plenum of the invention has a plurality of parallel longitudinal troughs, wherein each trough has a respective elongated opening extending along a longitudinal dimension of the trough. The elongated openings of the troughs are arranged for proximate fluid coupling along the longitudinal dimension of each of the circuit packs adjacent to the surfaces of the circuit packs, Each trough of the plenum has a respective extremity opening, which provides for coupling with an impeller. The impeller is arranged in 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.
38 Citations
19 Claims
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1. 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:
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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; and an 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 19)
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12. An apparatus for 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:
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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 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; and an impeller in 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; each trough has a respective elongated base surface formed opposing the respective elongated opening so that a flow of the cooling gas therethrough is substantially uniform along such elongated opening; and the elongated base surface of each trough of the plenum is formed with a plurality of ridges perpendicular to the longitudinal dimension of the troughs. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification