Patent ID: 8077462
Filing Date: 2011-12-13
Classification: H05K,Y10T

Abstract:
1. A cooling apparatus for an electronics rack, the apparatus comprising: an air-to-liquid heat exchange assembly mounted to a door, the door being vertically, hingedly mounted along a first edge to the electronics rack at one of an air inlet side or an air outlet side thereof, wherein air moves through the electronics rack from the air inlet side to the air outlet side; a system coolant inlet plenum and a system coolant outlet plenum mounted to the door along a second edge thereof in opposing relation with and remote from the first edge of the door hingedly mounted to the electronics rack, the system coolant inlet plenum and the system coolant outlet plenum being in fluid communication with the air-to-liquid heat exchange assembly and facilitating passage of system coolant therethrough, the system coolant inlet plenum comprising a coolant inlet and the system coolant outlet plenum comprising a coolant outlet; a system coolant supply hose and a system coolant return hose disposed above the electronics rack, the system coolant supply hose being coupled at a first end to the coolant inlet of the system coolant inlet plenum and at a second end to a system coolant supply header of a data center containing the electronics rack, and the system coolant return hose being coupled at a first end to the coolant outlet of the system coolant outlet plenum and at a second end to a system coolant return header of the data center, wherein the system coolant supply hose and system coolant return hose are each sufficiently flexible and of sufficient length to allow for opening and closing of the door; and a stress relief structure attached to an upper portion of the door and clamped to the system coolant supply hose and to the system coolant return hose to hold the first ends thereof in fixed relation to each other at the upper portion of the door and to relieve stress on connect couplings at the first ends thereof to the coolant inlet and coolant outlet, respectively, of the system coolant inlet and outlet plenums during opening or closing of the door.