| 摘要 |
PROBLEM TO BE SOLVED: To enable automatic and proper saving of power consumption on prevention of an increase in a temperature difference between the upper and lower parts inside a refrigerator. SOLUTION: A temperature inside a refrigerator is kept to be constant practically by operating intermittently a refrigerating cycle composed of a compressor 14, a condenser 15, a restrictor 17, an evaporator 13, etc. A refrigerant temperature sensor 24 is fitted in the vicinity of an outlet of the condenser 15 and detects a refrigerant temperature. A microcomputer 21 controls a refrigerator fan 18 in accordance with the detected refrigerant temperature so that the rate of operation of the refrigerator fan 18 during a stop of a cooling operation of the refrigerating cycle be lowered as the refrigerant temperature lowers. Under the condition that a temperature difference between the upper and lower parts inside the refrigerator becomes large due to a high outdoor air temperature or frequent opening and closing of a door, the rate of operation of the compressor increases and the temperature of a refrigerant in the refrigerating cycle rises. Upon prevention of the increase in the temperature difference between the upper and lower parts inside the refrigerator, therefore, power consumption can be saved automatically and properly. |
