REFRIGERATOR WITH DEEP FREEZER, AND METHOD FOR OPERATING THE REFRIGERATOR WITH DEEP FREEZER

摘要

PROBLEM TO BE SOLVED: To reduce refrigerant amount and to enhance safety in a refrigerator using a combustible refrigerant giving small influence on global warming by enhancing an energy efficiency of the refrigerator.;SOLUTION: The refrigerator comprises a refrigerating cycle having a motor and a compressing element driven by the motor in a sealed container. The compressing element as a compressor 1 including a low stage side compressing unit 3, a high-stage side compressing unit 2 and a refrigerating cycle having the low-stage side compressing unit, the high-stage side compressing unit of the compressor, a condenser, channel switching means, first expansion means, cooler for a cold storage chamber, second expansion means and cooler for a deep freezing chamber. In this case, the channel- switching means for switching to supplying or not supplying the refrigerant output from the condenser to the cooler for the cold storage is provided between the condenser and the first expansion means. The refrigerant output from the cooler for the freezing chamber is sucked to the low-stage side compressing unit, and the refrigerant output from the cooler for the storage chamber is sucked together with the refrigerant discharged from the low-stage side compressing unit to the high-stage side compressing unit.;COPYRIGHT: (C)2002,JPO