| 摘要 |
PURPOSE:To increase the cooling capacity by a simple constitution by a method wherein a damper thermostat is mounted in a duct, and connected to teh suction side of the fan through duct for agitating the interior of a chamber of a refrigerating chamber. CONSTITUTION:Air cooled by a cooling fan 15 and a vaporizer 14 cools a freezing chamber 10. In this case, the temperature of the freezing chamber 10 is reduced approximately to -20 deg.C. A part of so cooled air is guided to a duct 28 and an opening part 29 according to the temperature of a refrigerating chamber 11 by means of a damper thermostat 17. In this case, a pressure in a fan cover 26 is brought into a negative pressure since a fan 21 for agitating the interior of a chamber is run, cold air in the freezing chamber 10 is forcibly sucked, and quantities of cold air is fed to the refrigerating chamber 11. Meanwhile, cold air in the refrigerating chamber 11 is also sucked through an air introduction inlet 27 for circulation to produce mixed cold air, and the cold air is circulated within the refrigerating chamber 11. Air introduced from the freezing chamber 10 is returned in the in-chamber temperature state of the freezing chamber 11 thorough a cold air return air duct 13 to the freezing chamber 10 and is cooled. |
