| 摘要 |
PROBLEM TO BE SOLVED: To control a refrigerating cycle so that a cooling operation can be quickly started after a lubricating operation, and an inside temperature can quickly approach a set temperature on the basis of the inside temperature in the cooling operation. SOLUTION: In starting a refrigerator where a compressor is invertor-controlled, an operation is performed with rotational frequency capable of lubricating the compressor, and then performed with higher rotational frequency. Thus a suction pressure of the compressor is lowered, and the inside temperature T can quickly approach the set temperature in the cooling operation. Further the inside temperature is divided into a plurality of successive control temperature zones, the rotational frequency is increased or decreased at every time when the inside temperature is shifted among the control temperature zones, and the rotational frequency is increased or decreased when the inside temperature continuously stays in a specific control temperature zone over 10 minutes as a maximum stay time, or when the inside temperature is returned to the former control temperature zone before three minutes as a minimum stay time has passed, thus the inside temperature can quickly approach the set temperature. COPYRIGHT: (C)2009,JPO&INPIT
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