| 摘要 |
PURPOSE:To extremely simplify the structure of a duct and conspicuously improve working efficiency by covering a recessed porting formed in part of a partition wall for partitioning a refrigeration chamber with a cover having a cold air suction inlet, and forming a cold air return passage between the cover and the recessed portion. CONSTITUTION:Cold air blown off into a refrigeration chamber 7 is blown off from the interior of the refrigeration chamber 7 through a blow-off duct communicating with a cooler 11 into the refrigeration chamber 7. The cold air after cooling the interior of the refrigeration chamber 7 is sucked from a location close to a front door 7a as indicated by the arrow, and passes through the inside of a partition wall 3 after passage through a return passage 15 and returns to the inside of a return chamber 11a. With such construction, a cold air returning recessed portion 21 extending toward the interior of the refrigeration chamber 7 is previously formed in part of the partition wall 3, and a cold air return passage 15 is formed inside the cover 23 supply by covering the recessed portion 21 with a cover 23 including a cold air suction inlet 25. |
