| 摘要 |
PURPOSE:To provide a freezing refrigerating show case which is manufactured at a low cost, enables independently control of the temperatures of upper and lower storage chambers, and performs excellent cooling. CONSTITUTION:A freezing refrigerating show case is provided with upper and lower storage chambers 3 and 4, which are of integral type foam structure, cold air circulating passages 10 and 11, coolers 15 and 16, an air circulating fan 12 used in common, and temperature sensors 30 and 31 to detect the temperature of ventilating cold air. Cold air returned from the upper storage chamber 3 is returned through suction ducts formed on both sides of the cooler 15. By means of a refrigerant flow rate control signal according the detected temperatures from the temperature sensors 30 and 31, the amount of a refrigerant flowing to coolers 15 and 16 is regulated to individually control the temperatures of the storage chambers 3 and 4. |
