| 摘要 |
PURPOSE:To ensure fine temperature control in a freezing refrigerator capable of freezing/keeping at cold and storing foods. CONSTITUTION:There are provided estimation means 23 for estimating the rate of temperature rise of each of a freezing chamber and a refrigeration chamber, fresh air temperature detector means 25, and temperature effect time measurement means 24. A fuzzy estimation processor 27 executes fuzzy logical operation based upon the rate of temperature rise, fresh air temperature, and temperature effect time, and a control rule taken out from a memory 26, and estimate the lower limit of set temperature. Set temperature estimation means 28 adjust set temperature based upon the foregoing estimated lower limit. Following the result, there are controlled the number of revolutions of a compressor, the number of revolutions of the fan, and opening and closing of a motor driven damper. |
