| 摘要 |
PROBLEM TO BE SOLVED: To efficiently ventilate a heat exchanger throughout its entire length with uniformed airflow velocity, increase blowing rate while suppressing noise when blowing and increase heat exchanging rate in the heat exchanger wherein ventilation is conducted by a cross flow fan comprising a number of blades and partitioning plates. SOLUTION: A heat exchanger 11 consists of first fins 12a and second fins 12b which are alternately laminated, being parallel to each other, by plural number and a heating tube 13 which are inserted into the fins 12a and 12b at right angle thereto with refrigerant being made to flow therein. The second fins 12b disposed at the upstream side of a partition plate 17 of a cross flow fan 15 are each provided with flaps 14b on one side. The first fins 12a disposed at the upstream of blades 16 between adjacent partition plates 17 are each provided with flaps 14a, 14b on both sides. In this way, noise is suppressed and a blowing rate is increased. |
