| 摘要 |
PROBLEM TO BE SOLVED: To lower power consumption without the need for using a bedewing prevention heater for a duct by a method wherein chilled air of a partial chamber is returned to a feedback path for the partial chamber and is made to communicate with a vegetable chamber to allow the reducing of the caliber of the duct. SOLUTION: A feedback path 14 for a partial chamber is provided at the rear part of a partition wall 13 of the bottom surface of the partial chamber 12 to introduce chilled air into a vegetable chamber 15. The chilled air is returned to a cooling chamber from the feedback path 16 for the vegetable chamber to be cooled by a cooler and circulated by a fan device. As the temperature of the chilled air introduced into the vegetable chamber 15 from the feedback path 14 for the partial chamber is -5--8 deg.C, there is no fear of dew concentration on the wall of the feedback path 14 for the partial chamber. The internal temperature of the vegetable chamber 15 is 6 deg.C, meaning that the temperature of the chilled air introduced from the feedback path 14 for the partial chamber is lower than this temperature. The higher refrigerating effect thus obtained makes a sectional area of an air path smaller than that when the chilled air is introduced from a cold storage chamber 20 thereby achieving a higher efficiency. |
