ICE BOX USED AS REFRIGERATOR AND FOOD WARMING CABINET AND MANUFACTURING METHOD OF THE SAME

摘要

PURPOSE: An ice box used as refrigerator and food warming cabinet and manufacturing method of the same are provided to cool down an inside of the ice box using heat of sublimation of dry ice. CONSTITUTION: A pressure control cock(2) is installed on a side wall of an ice box(1) made of heat insulation material(3) to be exposed to an outside of the ice box so as to control pressure in the ice box. Dry ice is used as refrigerant instead of ice. A refrigerant storage box(4) is installed for refrigerant such as dry ice to be inserted therein. A valve is attached to the refrigerant storage box to control sublimation of refrigerant.