| 摘要 |
A fin that enhances heat exchange efficiency of a heat exchanger. The fin (1) for a heat exchanger is a fin fitted to heat conduction tubes and has a fin body (11), collars (13), and an erected part (14). The fin body (11) extends in a predetermined direction (91) and has holes for inserting the heat conduction tubes and arranged along the predetermined direction (91). Each collar (13) is erected on the same side as the fin body (11) so as to surround each hole. In a view of the fin (1) from the collar (13) side, the collars (13) are disposed between two straight lines (101,102) extending in the predetermined direction (91) on the surface (111) of the fin body (11), and the outer peripheries (131) of the collars (13) are in contact with the two straight lines (101, 102). The erected part (14) is erected on the fin body (11) on the same side as the collars (13) and is positioned on the outside of the two straight lines (101, 102). An end (141) of the erected part (14) is, when viewed from the surface (111) side, at a position higher than the ends (132) of the collars (13).
|
