Patent ID: 6029460
Filing Date: 2000-02-29
Classification: F24F,F25D

Abstract:
A method for controlling a cool air dispersing operation of a refrigerator, comprising the steps of:preparing a duct housing forming a cool air duct for guiding cool air generated by an evaporator, said duct housing having a plurality of cool air discharge ports open into a cooling compartment, a plurality of horizontal dispersing blades of planar plate shape being installed in said cool air duct so as to be capable of rotating with respect to a vertical axis, said horizontal dispersing blades for controlling a horizontal discharge direction of the cool air supplied into said cooling compartment, and a plurality of vertical dispersing blades of planar plate shape being installed in said cool air duct so as to be capable of rotating with respect to a horizontal axis, said vertical dispersing blades for controlling a vertical discharge direction of the cool air supplied into said cooling compartment;sensing temperatures of a predetermined number of positions in said cooling compartment;calculating a deviation of the temperatures in said cooling compartment on the basis of the sensed temperature;supplying the cool air in said cool air duct successively to respective areas in said cooling compartment by rotating said horizontal dispersing blades and said vertical dispersing blades continuously, while the deviation is smaller than a predetermined value; andstopping said horizontal dispersing blades and said vertical dispersing blades so that the cool air is discharged toward an area of which temperature is high, when the deviation is greater than the predetermined value.