Patent ID: 6694758
Filing Date: 2004-02-24
Classification: F25D

Abstract:
An apparatus for controlling concentrated cooling of a refrigerator comprising:a nozzle driving unit mounted on one side of a nozzle, which is installed on a side wall of a cooling chamber to be rotatable for injecting cool air into the cooling chamber, for rotating the nozzle as a certain step angle; an infrared sensor mounted on front side of the nozzle for scanning temperature in the cooling chamber as rotating with the nozzle; a timer for counting the time that the refrigerator is normally operated; a damper for selectively opening a cool air discharge duct discharging the cool air into the cooling chamber and a cool air guiding path for guiding the cool air into the nozzle side; and a control unit for controlling the damper and the nozzle driving unit according to electric signal outputted from the infrared sensor and the timer.