| 摘要 |
PROBLEM TO BE SOLVED: To improve a passing air amount and heat exchange efficiency in an upstream side flat tube heat exchanger unit, in a heat exchanger in which a plurality of rows of flat tube heat exchanger units are arranged.SOLUTION: A heat exchanger at least includes two flat tube heat exchanger units 10 including: a plurality of flat tubes 20 which are arrayed vertically and through which a refrigerant circulates; a plurality of fins 40 which are laminated by crossing the flat tubes and having a gap for allowing air to pass, and which have a notch part 41 opening in one direction so as to insert in an orthogonal direction of each flat tube; and headers 30 which are mounted on both ends of the plurality of flat tubes and which allow the refrigerant to branch and join inside. The notch part has depth which is the same as width in the cross-sectional longitudinal direction of the flat tube. The header, in a lateral view, has one contour line of the header with a distance L1 at further outside than one end part which has the notch part of the fin.SELECTED DRAWING: Figure 3 |
