Case and rack system for liquid submersion cooling of electronic devices connected in an array

A liquid submersion-cooled server computer that is removably attachable in a server computer array, comprising:

• a housing defining a liquid-tight interior space;
• a liquid inlet in a wall of the housing, the liquid inlet including a quick-connect valve that controls the flow of liquid through the liquid inlet when the server computer is removed from the server computer array;
• a liquid outlet in the wall of the housing, the liquid outlet including a quick-connect valve that controls the flow of liquid through the liquid outlet when the server computer is removed from the server computer array;
• a server logic board disposed in the interior space of the housing, and heat generating electronic devices disposed on the server logic board;
• a plenum housing within the interior space;
• the plenum housing includes an inside space, a cooling liquid inlet port in communication with the inside space, and a cooling liquid exit opening in communication with the inside space, and the plenum housing is disposed over one of the heat generating electronic devices disposed on the server logic board, wherein the plenum housing contains a flow of cooling liquid that is introduced through the cooling liquid inlet port as the cooling liquid flows over the one heat generating electronic devices toward the cooling liquid exit opening to increase the cooling effectiveness on the one heat generating electronic device;
• a dielectric cooling liquid disposed within the interior space and submerging the plurality of heat generating electronic devices disposed on the server logic board;
• a manifold within the interior space and fluidly connected to the liquid inlet;
• a tube within the interior space fluidly connected to the manifold and to the plenum housing to direct flow of the dielectric cooling liquid from the manifold into the plenum housing;
• a heat sink enveloped by the plenum and connected to the one heat generating electronic device;
• and
• a liquid and gas-tight sealed IO connector extending through a wall of the housing and electrically connected to the electronic devices on the server logic board.