| 摘要 |
Flat tubes (63) are arranged in a tube segment direction. Insertion fins (66) comprise multiple cut-out portions (67) which extend in the tube segment direction and the tube insertion direction, which intersects with the length direction of the flat tubes (63), and are arranged along the length direction of the flat tubes (63). The portion of cut-out portions (67) that contacts the flat tube (63) in a state in which a flat tube (63) is inserted is the tube insertion portion (80). In multiple fin intermediate areas (81) that are sandwiched by tube insertion portions (80) adjacent to one another in the tube segment direction, pedestals (84) having a flat surface (85) are formed by the bulging out of the insertion fin (66). |
