| 摘要 |
<p>In order to improve water drainage between louvers, fins (50) have: plate-like sections (60) disposed in such a manner that the plate thickness direction intersects the air flow direction (F); and louvers (61) protruding from the plate-like sections (60) in the plate thickness direction. Flat heat transfer tubes (41, 42, 43, ...) are inserted between the fins (50) so as to intersect the air flow direction (F). The louvers (61) have first louvers (62) and second louvers (63), and the angle of tilt of the first louvers (62) relative to the plate-like sections (60) and that of the second louvers (63) are different. The louvers (62, 63) are disposed alternately.</p> |
