Air conditioner

Abstract

An air conditioner includes a heat exchanger that is arranged in a ventilation flue inside a housing, wherein the heat exchanger includes a plurality of flat tubes, and a fin that includes a plurality of notch portions arranged side by side in a vertical direction, to which the plurality of flat tubes are inserted, and includes intermediate regions each formed between two of the notch portions adjacent to each other in a vertical direction, and a connection region connecting the intermediate regions to each other, first bulging portions that are at least partly positioned on the intermediate regions, and a second bulging portion that overlaps with a gap generated between the first bulging portions and the flat tubes.

1 . An air conditioner comprising
 a heat exchanger that is arranged in a ventilation flue inside a housing, and   a blower that is arranged in the ventilation flue, wherein   the heat exchanger includes
 a plurality of flat tubes, and 
 a fin that includes a plurality of notch portions arranged side by side in a vertical direction, to which the plurality of flat tubes are inserted, and includes intermediate regions each formed between two of the notch portions adjacent to each other in a vertical direction, and a connection region connecting the intermediate regions to each other, 
   the heat exchanger is arranged in a state where the intermediate regions are present on a windward side in a ventilation direction of air flowing in the ventilation flue, with respect to the connection region,   the heat exchanger includes
 first bulging portions that are at least partly positioned on the intermediate regions, and 
 a second bulging portion that overlaps with a gap generated between the first bulging portions and the flat tubes when the heat exchanger is viewed from the windward side in a direction of a drag line, and 
   the drag line is defined by a virtual line that extends from a start point at a point where condensed water is accumulated on the fin, on the windward side, to an end point at a point where a static pressure in the ventilation flue is lowest, on a leeward side.   
     
     
         2 . The air conditioner according to  claim 1 , wherein
 the blower is provided on a downstream side in the ventilation direction from the heat exchanger in the ventilation flue, and   the end point is at a center of the blower.   
     
     
         3 . The air conditioner according to  claim 1 , wherein
 the blower is provided on an upstream side in the ventilation direction from the heat exchanger in the ventilation flue, and   the end point is at a center of a position where a flow passage cross-sectional area is minimum in the ventilation flue.   
     
     
         4 . The air conditioner according to  claim 1 , wherein each of the first bulging portions is formed with an upper end edge positioned to fall within a range of 4 mm or less from a lower side of a first notch portion on an upper side. 
     
     
         5 . The air conditioner according to  claim 1 , wherein the first bulging portions and the second bulging portion are formed such that a distance between the notch portions and the second bulging portion is equal to or larger than a distance between the first bulging portions and the second bulging portion.