Method and apparatus for controlling driving of air curtain fan

Details Method and apparatus for controlling driving of air curtain fan Method and apparatus for controlling driving of air curtain fan

1997-12-03

1999-02-16

Wayner, William

Refrigeration

Processes

Circulating external gas

62131, 62256, 454188, F24F 900, A47F 304

Patent

active

058708987

ABSTRACT:
An air curtain fan driving controlling method and apparatus control a driving of an air curtain based on the temperature inside a refrigerating compartment of a refrigerator and the temperature outside a refrigerating compartment thereof. In the method, a reference temperature for controlling a temperature inside a refrigerating compartment is set. The normal cool operation for the refrigerating compartment is executed. It is judged whether an open door for the refrigerating compartment is detected during the normal cooling operating. In the previous step, when the door-close is detected, the temperature inside the refrigerating compartment and the temperature outside the refrigerating compartment is detected. An absolute value between a difference of the temperature inside a refrigerating compartment and the temperature outside the refrigerating compartment is compared with the set reference temperature to control a driving of the air curtain fan. It is judged whether a door-close for the refrigerating compartment is detected. It is judged whether a closed door for the refrigerating compartment is detected to control the air curtain fan according to a result of the detection. In accordance with method and the apparatus, since an air curtain fan is driven based on the temperature inside a refrigerating compartment of a refrigerator and the temperature outside a refrigerating compartment thereof, the method and apparatus wastes less electric power than that of the conventional method.

REFERENCES:
patent: 4379391 (1983-04-01), Rhee
patent: 5263332 (1993-11-01), Park
patent: 5784895 (1998-07-01), Choi
patent: 5791152 (1998-08-01), Choi

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