Patent ID: 6330803
Filing Date: 2001-12-18
Classification: F25B,F25D

Abstract:
An operation control apparatus for a refrigerator which refrigerator includes (a) a freezing compartment evaporator and a freezing compartment fan motor mounted in a freezing compartment, (b) a refrigerating compartment evaporator and a refrigerating compartment fan motor mounted in a refrigerating compartment, and (c) a freezing compartment temperature regulator for setting a freezing compartment temperature to a predetermined temperature and for switching power to the freezing compartment fan motor, (d) a refrigerating compartment temperature regulator for setting a refrigerating compartment temperature to a predetermined temperature and for switching power to the refrigerating compartment fan motor, and (e) a compressor, the operation control apparatus wherein:the freezing compartment temperature regulator is serially connected to the freezing compartment fan motor,the refrigerating compartment temperature regulator is serially connected to the refrigerating compartment fan motor,the compressor is serially connected to the freezing compartment temperature regulator for operation only when the freezing compartment regulator switches power to the freezing compartment fan motor,(a) the serially connected refrigerating compartment temperature regulator and refrigerating compartment fan motor and (b) the serially connected freezing compartment temperature regulator and freezing compartment fan motor are respectively connected in parallel to an input terminal of a power-supply such that independent activations are provided for the freezing compartment fan motor by the freezing compartment temperature regulator and for the refrigerating compartment fan motor by the refrigerating compartment temperature regulator, anda temperature sensor which senses a temperature of the refrigerating compartment evaporator is connected in series to the refrigerating compartment fan motor to switch power to the refrigerating compartment fan motor when a temperature of the refrigerating compartment evaporator is sufficient for cooling of the refrigerating compartment such that, even when the compressor is not in operation, if the temperature of the refrigerating compartment evaporator is sufficient for cooling of the refrigerating compartment and the refrigerating compartment temperature regulator is switching power to the refrigerating compartment fan motor to provide cooling, the refrigerating compartment fan motor is activated to provide cooling of the refrigerating compartment.