Patent ID: 6591622
Filing Date: 2003-07-15
Classification: F25B,F25D,G05D

Abstract:
A device for controlling a temperature (T) in a space (12) in a cabinet (10), which space is refrigerated by an element (14) being kept cold by an intermittently operating refrigerating machine (16), characterized in that the device has a common means (20 and 22) registering the temperature in the space, which common means is arranged to start the refrigerating machine at a connect value (Ton) of the registered temperature, whereby a period of refrigeration ends and a new period of refrigeration starts, which common means is arranged to stop the refrigerating machine at a disconnect value (Toff) of the temperature, and which common means has a preset value (Tset) for the temperature in the space, that the device has a third means (24) continuously compiling an average value (Tav) of the temperature in the space during a present period of refrigeration, and that the device has a fourth means (26) for compiling a discrepancy (&Dgr;T) between the average value and the preset value, where the magnitude of the discrepancy decides whether the connect and/or disconnect values shall be changed in order to have the temperature to approach the preset value (Tset).