| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily discharge drain water from surfaces of fins in a heat exchanger including flat tubes and the fins.SOLUTION: A plurality of louvers (51-58) extended in the vertical direction, are respectively formed on a part between adjacent flat tubes (33, 33) of fins (36) in a state of being arranged in the air passing direction. The plurality of louvers (51-58) include the first louver (51) formed on a lower part of a leeward-side end portion of the flat tube (33) on the fin (36) in a state that a cut and raised end at a windward side is positioned at a windward side with respect to a leeward-side end of a lower face of the flat tube (33), and a cut and raised end at a leeward side is positioned at a leeward side with respect to the leeward side end of the flat tube (33), and the second louver (52) formed at a windward-side part with respect to the first louver (51) on the fin (36), and adjacent to the first louver (51). The second louver (52) is disposed at an interval with respect to the first louver (51) so that the drain water falling down along a leeward-side end face of the flat tube (33) does not reach the second louver (52).</p> |
