Patent ID: 9657996
Date: 2017-05-23
CPC Classifications: F24F,F28D,F28F

Claim:
1. An outdoor unit of an air-conditioning apparatus, the outdoor unit comprising flat tube heat exchangers including a plurality of single-row flat tube heat exchangers that are coupled to each other, each of the single-row flat tube heat exchangers including in the flat tube heat exchangers, the flat tubes are arranged at a predetermined pitch in a stage direction orthogonal to a row direction of the fins, a distance between fin ends at one side in the stage direction of the fins and a center in a thickness direction of the flat tubes is k·Dp and a distance between fin ends at the other end in the stage direction of the fins and the center in the thickness direction of the flat tubes is (1−k)·Dp, where Dp is a pitch of the flat tubes in the stage direction and k is a coefficient of Dp, and either 0<k<0.5 or 0.5<k<1, an odd-numbered one of the single-row flat tube heat exchangers is disposed in opposite orientation with respect to the stage direction to an even-numbered one of the single-row flat tube heat exchangers with regard to an air flow direction, upper and lower ends of the odd-numbered one of the single-row flat tube heat exchangers are aligned with upper and lower ends of the even-numbered one of the single-row flat tube heat exchangers, the fins are arranged orthogonally to the flat tubes, and the one end of each of the fins that is provided with the insertion portions, and one end of each of the flat tubes that is positioned at a shallow side with respect to each of the insertion portions, are aligned with each other.