Patent ID: 7903407

Claim:
A cooling system comprising an inside room for containing therein an electronic device, an air conditioning area under its floor level, an air conditioner and a ceiling air duct, wherein the system further comprises a front cover arranged at a front side of the electronic device, a back cover arranged at a back side of the electronic device, an air supply opening arranged below the front cover, an air exhaust opening arranged above the back cover, a blowing opening connected to the air supply opening to supply the air from the air conditioning area into the inside room, and an air intake opening connected to the air exhaust opening to take the air from the inside room into the ceiling air duct; and wherein the ceiling air duct includes a flow path for the air discharged from the inside room, another flow path for the air to be taken from an outside of the system, and a heat exchanger for heat exchange between the air discharged from the inside room and the air taken from the outside of the system.