| 摘要 |
PURPOSE:To provide the controller of a freezing refrigerator capable of detecting and operating a thermal load in a freezing chamber and effecting the optimum temperature control. CONSTITUTION:A door opening period of time is operated by a door opening period of time operating means 23 and an atmospheric temperature is detected by an atmosphere temperature detecting means 24 while an inside temperature is detected by an inside temperature detecting means 25. An ambient temperature operating means 26 is provided to operate the changing degree of an ambinet temperature in a freezing from the door opening period of time, the atmospheric temperature and the inside temperature. The changing rate of inside temperature is obtained by a differentiating means 27. A load operating means 28 is provided to operate the amount of load (temperature of food X heat capacity) of foods in a freezing chamber from the inside temperature and the changing rate of the inside temperature and operate further the fluctuation of the load (the increase and/or decrease of the amount of load). Fuzzy reasoning operation is effected by a fuzzy reasoning processor 30 based on the amount of load, the fluctuation of load, the changing degree of the ambient temperature of the freezing chamber and a control rule taken out of a memory 29 to operate and amounts of operation of a fan motor and a compressor. Accordingly, the title device can effect the optimum temperature control of the freezing chamber 8. |
