Patent ID: 9317080
Filing Date: 2016-04-19
CPC Classification: G06F,H05K

Claim Text:
1. A cooling system for at least one electric device, comprising: a first rack row and a second rack row, in which a plurality of racks are arranged, wherein each of the plurality of racks is configured to house an electric device including a first fan, and each of the plurality of racks has both an air suction port formed in a front surface of the rack and an air exhaust port formed in a rear surface of the rack, and wherein the first rack row and the second rack row are disposed such that their respective air exhaust ports oppose each other, and a gap with a predetermined size is interposed therebetween; a plurality of local cooling units, each configured to cool a rack row, wherein at least one first local cooling unit and second cooling unit, serving as an opposing pair of local cooling units, of the plurality of local cooling units, are disposed above the first rack row and the second rack row, respectively, in an opposing manner, wherein the gap with the predetermined size is covered by a combination of the first local cooling unit disposed above the first rack row and the second local cooling unit disposed above the second rack row, and wherein each of the first local cooling unit and the second local cooling unit includes: a cooling tower and/or condenser, disposed above the plurality of local cooling units; a gas piping configured to transport a refrigerant, which has been evaporated in an evaporator, to the cooling tower and/or condenser; and a liquid piping configured to transport the refrigerant, which has been condensed in the cooling tower and/or condenser, to the evaporator; wherein the refrigerant is naturally circulated.