| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat exchanger of small air pressure loss and large heat exchange rate. <P>SOLUTION: The heat exchanger includes flat tubes having a plurality of refrigerant circulation holes inside thereof, and fins fixed to flat faces of the flat tubes, and the flat tubes and the fins are alternately stacked. (W-t1-t2)×Hp×Hf/N is 3.95-10.0, when an equivalent diameter of the plurality of refrigerant circulation holes is de, a width of the flat tube is W, a thickness at one end side corresponding to a distance between one end in the width direction of the flat tube and the refrigerant circulation hole closest thereto is t1, a thickness at the other end side corresponding to a distance between the other end in the width direction of the flat tube and the refrigerant circulation hole closest thereto is t2, a height in the stacking direction of the flat tube is Hp, a height in the stacking direction of the fin is Hf, and the number of refrigerant circulation holes is N, and further the equivalent diameter de is 0.5-0.8, and the width W of the flat tube is 12-16 mm. <P>COPYRIGHT: (C)2012,JPO&INPIT |
