| 摘要 |
A parallel flow type heat exchanger in which the heat exchange performance is enhanced and defrosted water or condensate can be drained smoothly. The heat exchanger (1) includes horizontal header pipes (2, 3) arranged in parallel while spaced apart in the vertical direction, a plurality of vertical flat tubes (4) arranged between the header pipes (2, 3) while spaced apart in the horizontal direction and communicating a vertical refrigerant passage (5) internally provided with the interior of the header pipe, and a corrugate fin (6) arranged between the flat tubes (4). The corrugate fin (6) consists of a windward side corrugate fin (6U) having a fin surface of down grade toward the leeward side, and a leeward side corrugate fin (6D) having a fin surface of up grade toward the leeward side. On the side face of the flat tube (4), a vertical rib (12) is formed for making the leeward side end of the windward side corrugate fin (6U) abut on the windward side end of the leeward side corrugate fin (6U). |
