| 摘要 |
PURPOSE:To enable a cooling control to be carried out to an icing point storing temperature corresponding to the kind of food under an indirect cooling system by a method wherein there are provided a duct member communicating from a rear surface side and a temperature control device for controlling a temperature within a case at the first cold air passage. CONSTITUTION:Each of independent first cold air passages 14, 15 and 16 is formed around a plurality of cases 8, 9 and 10. Since each of the first cold air passages is controlled independently by its corresponding temperature control device TC for its cold air feeding, an inside part of a case is kept at a high humidity. According to an indirect cooling system for controlling a feeding of cold air into the first cold air passage around the case, the cold air has a lower cooling capability than that of the refrigerant, so that a cooling capability per hour may become low and a varying speed of the temperature within the case becomes slow. In particular, since the temperature within the upper case is set to be lower than that of the lower case, it is possible to perform a long period cooling and storing of food. |
