| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent dew attaching to a cold air supply amount adjusting damper without deteriorating cooling efficiency in a temperature switching chamber even if the temperature switching chamber is arranged lower than an air blower for cold air circulation. <P>SOLUTION: A plurality of storage chambers is formed vertically in a storage space inside a heat insulating box 1, an air blower 21 and a cold air duct 24 are arranged for circulating cold air in the plurality of storage chambers, the cold air is generated in a cooler 22 arranged inside the heat insulating box 1 behind these storage chambers, and one of the plurality of storage chambers is set as the temperature switching chamber 12 in which temperature can be switched for freezing through cold storage. Further, at the upper part of the temperature switching chamber 12 arranged lower than the air blower 21, a top face duct 31 is provided to which cold air is supplied from the cold air duct 24. At a connection part 33 of the top face duct 31 and the cold air duct 24, a cold air reservoir part 32 positioned lower than the top face duct 31 is provided, and the cold air reservoir part 32 is provided with the damper 34 for adjusting a cold air supply amount for the temperature switching chamber 12. <P>COPYRIGHT: (C)2012,JPO&INPIT |
