Patent ID: 9634959
Date: 2017-04-25
CPC Classifications: H04L,H05K

Claim:
1. A network switch comprising: a plurality of spine cards each comprising a liquid cooling plate in direct contact with one or more spine chips, the plurality of spine cards are stacked vertically one on top of another and separated by a predetermined space; a plurality of leaf cards each comprising one or more leaf chips in direct contact with a heat sink, the plurality of leaf cards are perpendicular to and circumferentially arrayed around the stack of spine cards, the leaf chips of each leaf card are electrically connected to the spine chips of each spine card; an inlet air plenum arranged directly below the stack of spine cards to direct an air flow across the heat sinks of the leaf cards in a direction perpendicular to the spine cards; an outlet air plenum for receiving the air flow from across the leaf cards; a supply piping connecting each liquid cooling plate to a heat exchanger via a supply manifold, wherein the supply piping is routed through a space between adjacent leaf cards at a first corner of the stack of spine cards; and a return piping connecting each liquid cooling plate to the heat exchanger via a return manifold, wherein the return piping is routed through a space between adjacent leaf cards at a second corner of the stack of spine cards.