| 摘要 |
Water drainage between louvers is improved. Fins (50) have a plate-shaped part (60) positioned so that a plate-thickness direction intersects an air-flow direction (F), and have a plurality of louvers (61) protruding from the plate-shaped part (60) in the plate-thickness direction. Flat heat-transfer tubes (41, 42, 43...) are inserted into the fins (50) so as to intersect the air-flow direction (F). In particular, the louvers (61) have a first louver (62) and a second louver (63) that have different inclination angles with respect to the plate-shaped part (60). These louvers (62, 63) are positioned in alternation. |
