| 摘要 |
Fins (32, 62) having a protrusion (188) on one edge are mounted on one end and the other end of each of multiple flat tubes (170) that comprise a flat tube section (31) of an upwind tube column (50) and a flat tube section (61) of a downwind tube column (90) such that the protrusions (188) face in opposite directions, and each flat tube (170) is bent between the one end and the other end. Hereby, the upwind tube column (50) and the downwind tube column (90) are formed in a state in which the protrusions (188) of the fins (32, 62) face the same direction, ensuring the water drainage properties of the two-column heat exchanger and preventing errors in assembly. |
