PURPOSE: To provide a controlling device for a refrigerated-cold storage cabinet which performs delicate regulation of temperature when foods are packed to the full during a summer season and rapid cooling is to be effected when a user has unexpected visitors. ;CONSTITUTION: A computing means 29 for an atmospheric temperature is provided to compute the degree of a change in an atmospheric temperature of a refrigerated chamber from a door opening time, an open air temperature, and a temperature in a chamber. A computing means 31 for a thermal load is provided to compute a thermal load amount (a food temperature × heat capacity) of foods at each shelf in the refrigerated chamber from the temperature of each shelf and the rate of a change in the temperature of each shelf. A fuzzy inference processor 33 performs fuzzy logic computation based on a thermal load amount of each shelf, the degree of a change in an atmospheric temperature, and a control rule taken out from a memory 32, and computes an operation amount of a damper and the frequency of a fan motor. Based on the computing result, a damper control means 34 controls the opening of a damper located at each shelf and a control means 35 for a fan motor drives a fan.;COPYRIGHT: (C)1993,JPO&Japio
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