| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger which is simple in the constitution and easy in the manufacture by providing a holding groove in which a pipe is arranged to a fin and a pair supporting pieces erected on each side of the holding groove, and collapsing the supporting pieces to the extension side of the pipe at the upper side of the pipe to fix the pipe to the fin. SOLUTION: A heat exchanger comprises a corrugate fin 1 for heat radiation, a refrigerant pipe 3 to pass the refrigerant, and a heater pipe 4 for defrosting. The corrugate fin 1 for heat radiation is formed of an aluminum flat sheet by folding it so as to repeat the bottom and top, and the holding groove to receive and hold the refrigerant pipe 3 and the heater pipe 4 for defrosting to be extended in the orthogonal direction are formed on each corrugate fin 1. The refrigerant pipe 3 is arranged on the bottom side of the holding groove and the heater pipe 4 is overlapped so as to hold the refrigerant pipe from the upper side. A pair of supporting pieces 7 for holding the pipe are erected on each side of the holding groove to form a notch 9 between the supporting piece 7 and the fin 1. |
