| 摘要 |
PURPOSE:To improve a cooling speed when a temperature in a store receiving room is higher than a set temperature by a method wherein a first ventilating port is formed on the body of a storing box at the inlet port side of a flow passage from an evaporator to a fan and a second ventilating port is formed on the body of the same at the outlet port side while respective ventilating ports are equipped with opening and closing bodies. CONSTITUTION:A first ventilating port 19 is formed at the lower part of the left side wall of the body 17 of a storage box while a second ventilating port 20 is formed at the right side of the upper wall of the body 17. The first ventilating port 19 and the second ventilating port 20 are equipped with opening and closing bodies 21, 22. When a temperature in a receiving chamber 18 of the storeroom 1 is higher than a higher temperature within the range of a set temperature of the storeroom 1, the opening and closing bodies 21, 22 are opened to introduce cold air, flowing through a cold air ventilating passage 16, into the receiving chamber 18 from the second ventilating port 20 and extract air in the receiving chamber 18 from the first ventilating port 19 into the cold air flow passage 16. When the temperature in the receiving chamber 18 is considerably higher than the set temperature and is proximate to an atmospheric temperature, the opening and closing bodies 21, 22 are opened fully while the opening and closing angle of the opening and closing bodies 21, 22 may be changed in accordance with the temperature in the receiving chamber 18. |
