| 摘要 |
PROBLEM TO BE SOLVED: To suppress temperature irregularities inside a container by averaging the air volume of cold air blown off inside the container through cold air blow-off holes opened at the different heights of a back surface panel corresponding to merchandise display shelves arranged at the lower part inside the container, in a cold air circulation type multi-stage showcase. SOLUTION: The cold air circulation type multi-stage showcase cold-insulates display merchandise by circulating the cold air inside the container through a cooler disposed in a cold air circulation duct formed between the inner box/outer box of a case body, the cooler 4 is disposed behind a panel lower area with an air guiding gap 3a from the back surface panel 2a of the inner box, the cold air blow-off holes are separately opened at upper and lower parts on the back surface panel corresponding to the merchandise display shelves 7 arranged in the lower area inside the container, and the cold air split from the cold air circulation duct to the air guiding gap through the cold air blow-off holes is guided toward the inside of the container. In the showcase, a punching board 10 is laid as an air guiding resistance board at the middle stage position of the air guiding gap formed between the front surface cover 4c of the cooler 4 and the back surface panel 2a facing the cover, and the cold air blown off into the container through the cold air blow-off holes on the back surface panel opened on the upper and lower sides is averaged. COPYRIGHT: (C)2008,JPO&INPIT
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