| 摘要 |
<p>Provided are a heat exchanger (100) and a machining method for the heat exchanger. The heat exchanger (100) comprises a first header pipe (1), a second header pipe (2), several flat pipes (3) and several fins (4). The flat pipe (3) comprises an intermediate part (30), a first straight part (31) twisted relative to the intermediate part (30), a second straight part (32) twisted relative to the intermediate part (30), a first twist part (33) connecting the intermediate part (30) and the first straight part (31), and a second twist part (34) connecting the intermediate part (30) and the second straight part (32). The first straight part (31) and the second straight part (32) are respectively positioned at the two sides of the intermediate part (30) and roughly positioned in the same plane. Fins (4) are welded between adjacent first straight parts (31), and fins (4) are welded between adjacent second flat and straight parts (32).</p> |
