| 摘要 |
PURPOSE:To contrive to avoid any unbalance in a volume of air passing through an indoor heat exchanger by a method wherein a height of a bell mouth is made different in its circumferential direction in an air conditioning device having the cylindrical bell mouth at the outer circumference of the axial flow fan. CONSTITUTION:Indoor heat exchanger units 1a and 1b are arranged on the floor plate 3 in such a way as they are oppositely faced to each other, and a propeller fan 4 is arranged in it. A height of the bell mouth 17 is made as a staggered at its right and left sides, respectively around the interface of the diametrical direction of the bell mouth. A high arcular part 18 in high order of height and a lower height arcular part 19 are formed, and they are arranged in such a way as its stepped part 20 is positioned at the first and second indoor heat exchangers 1a and 1b, respectively, and the high arcular part 18 is positioned at the side where the propeller fan 4 is displaced. At the left side of the line X, the suction force becomes higher than that of the right lower arcuate part 19 due to the presence of the high arcuate part 18, the air volume of air passing through the first heat exchanger 1a is increased, resulting in that the air volumes to be sucked into the first and second heat exchangers 1a and 1b become equal to each other. |
