| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a condenser, and increase the effective volume of a space to be refrigerated by a method wherein after suction air is insulate- compressed, the suction air is made to pass the condenser, and the air is insulate-expanded at the blow-out port, and then, the air is blown out to a refrigeration space. SOLUTION: On the ceiling surface in a refrigerator 1, an air refrigerating device 2 is attached. This air refrigerating device 2 has an air-tight casing 3, and a suction port 4 is provided at one end of the casing 3, and an air compressor 5 is attached on the inside of the suction port 4. At the other end of the casing 3, a blow-out port 6 of which the opening is contracted to be narrow, is provided. In the casing 3, a directly expanding type condenser 7 is provided. By this method, in the air refrigerating device 2, an air-tight air circulation passage wherein the air in the refrigerator being drawn from the suction port 4, is insulate-compressed by the air compressor 5, and then, refrigerated by the condenser 7, and then, blown out into the refrigerator through the blow-out port 6, is formed. |
