| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of a freezer-refrigerator by loading a binary refrigerating cycle in the freezer-refrigerator. SOLUTION: The refrigerating cycle 1 of this freezer-refrigerator includes a high-temperature cycle 2 having a high-temperature cycle compressor 10 and a high-temperature cycle evaporator 14 for cooling a refrigerating compartment, and a low-temperature cycle 3 having a low-temperature cycle compressor 20 and a low-temperature cycle evaporator 24 for cooling a freezing compartment, the high-temperature cycle 2 is provided with a high-temperature cycle internal heat exchanger 12 for exchanging heat between a high-temperature refrigerant and a low-temperature refrigerant in the high-temperature cycle, the low-temperature cycle 3 is provided with a low-temperature cycle internal heat exchanger 22 for exchanging heat between a high-temperature refrigerant and a low-temperature refrigerant in the low-temperature cycle, and an intermediate heat exchanger 30 for allowing the radiation heat of the low-temperature cycle 2 to be absorbed by the high-temperature cycle 3, and a cycle-to-cycle internal heat exchanger 31 for exchanging heat between the high-temperature refrigerant of the high-temperature cycle 2 and the low-temperature refrigerant of the low-temperature cycle 3, are disposed between the high-temperature cycle 2 and the low-temperature cycle 3. COPYRIGHT: (C)2011,JPO&INPIT |
