| 摘要 |
PURPOSE:To rapidly cope with the temperature rise and to improve storage performance by a cold air introduction means is located in a storage chamber, when temperature is at a given high vale, the cold air introduction means is operated based on temperature in the storage chamber. CONSTITUTION:A cooling device 14 is operated, air in a high pressure section 20 of an upper space 11A is sucked with the aid of a first blower device 13. After the air flows to a cooler 12 by which it is cooled, it is discharged in a right space 11F. Meanwhile, air in a cold air circulating space 11 is forcibly circulated through the outside of an inner box 3 with the aid of blower devices 19 and 19 and is returned to a lower pressure section 21 of the upper space 11A after the passage of it through spaces 11C, 11D, 11F, 11B, and 11E on the right front and rear sides and a low pressure region 35 from the high pressure section 20 of the upper space 11A. The blower devices 19 and 19 forcibly produces a pressure difference in circulating cold air in a space, diffuses cold air throughout a wide range, and cools the cold air with high efficiency. |
