FLAT TUBE HEAT EXCHANGE APPARATUS, AND OUTDOOR UNIT FOR AIR CONDITIONER PROVIDED WITH SAME

摘要

In flat tube heat exchangers, flat tubes are arranged at a predetermined pitch in a stage direction orthogonal to a row direction of fins, the 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 the 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, and 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.