| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger improved in heat transfer efficiency for space reduction and increased in reliability during use, while reducing its cost by the simplification of processes, a method of manufacturing it, and an air conditioner including it. SOLUTION: The heat exchanger includes a plurality of plate-shaped fins 10 formed of aluminum alloys subjected to hydrophilic coating treatment and stacked at predetermined intervals with air flowing between them, and flat heat transfer pipes 1 formed of aluminum alloys and having refrigerant flow passages 3 in directions of major axes along longitudinal directions. The heat transfer pipes 1 are fitted into grooves 11 formed at the plate-shaped fins 10. A solder layer 4 formed on the outer surface of a front edge of each heat transfer pipe 1 is melted and the heat transfer pipes 1 are secured to the plate-shaped fins 10 with solder 4. COPYRIGHT: (C)2010,JPO&INPIT |
