Patent ID: 9618229
Date: 2017-04-11
CPC Classifications: F24F,F28D,F28F,Y10T

Claim:
1. A heat exchange device, comprising a first heat exchanger and a second heat exchanger, the first heat exchanger being positioned in front of the second heat exchanger, the heat exchangers being housed in a cabinet of an air conditioner: each heat exchanger comprising a number of heat-dissipating fins arranged in parallel with each other, refrigerant tubes arranged in a plurality of stages penetrating the heat-dissipating fins and the mounting plates, and a plurality of U-shaped connection tubes for connecting the tube ends of the refrigerant tubes with each other, wherein the first heat exchanger is bent toward a front surface side in a substantially L-shape, the second heat exchanger is positioned on a rear surface side of the first heat exchanger, and the second refrigerant tubes in the second heat exchanger have a tube length that is shorter than the tube length of the first refrigerant tubes of the first heat exchanger; and wherein a first mounting plate is fixed to a side surface of the first heat exchanger and a second mounting plate is fixed to a side surface of the second heat exchanger, and said first and second mounting plates face each other and are connected and fixed to each other; the first mounting plate has a first plurality of insertion holes for receiving the refrigerant tubes of the first heat exchanger, the tube ends of the first refrigerant tubes project laterally from the first mounting plate through said first plurality of insertion holes, the tube ends of the second refrigerant tubes project laterally through the second mounting plate, said first mounting plate comprises an area adjacent to said first insertion holes of a size corresponding to the size of said second mounting plate and which faces the second mounting plate and is connected and fixed to the second mounting plate, said area of said first mounting plate having second insertion holes receiving therein the tube ends of the second refrigerant tubes, wherein the diameter of said second insertion holes is larger than the diameter of the second refrigerant tubes and smaller than the distance between the tube ends of the U-shaped connection tubes, wherein the U-shaped connection tubes are brazed and fixed to the tube ends of the refrigerant tubes laterally projecting from the first insertion holes and from the second insertion holes.