| 摘要 |
PURPOSE:To ensure a refrigerator temperature of which is stable at all times by detecting the frequency of the opening and closing of a door of the refrigerator, and changing set temperature for variably changing the number of revolutions of a fan responsibly to a detected result. CONSTITUTION:In control means 14 for controlling a compressor 4 and a cold air circulation fan 6 based upon an output signal from refrigerator temperature detector means 8 for detecting temperature in a freezing chamber of a refrigerator, door opening/closing detector means 13 is provided, and a counter 15 is provided in the control means 14 for counting the number of signalling from the door opening/closing detector means 13. It is judged whether refrigerator temperature is higher or lower than a set value T1 (-22 deg.C for example), and if higher, the fan 6 is rotated at a high speed through revolution control means 11 and the compressor 4 is operated. Then, the contents of the counter 15 are checked, and if they are higher than a set value (30 times for example), the refrigerator temperature is compared with a set value T4 (-15 deg.C for example), and if a detected value is higher than the set value, the fan 6 is rotated at a high speed as well. |
