INDOOR UNIT AND AIR CONDITIONER

WIPO Patent Application WO/2020/121517

A1

An indoor unit according to the present invention is provided with: a heat exchanger having heat conductive pipes and rectangular fins provided with a plurality of cut-and-raised portions; and a blower. In the heat exchanger, the fins, which are arranged to have inclination angles with respect to the vertical direction and configured in a plurality of rows in which the conductive pipes are arranged in a plurality of rows on the upstream side of the blower relative to the air flow, is provided with the cut-and-raised portions so that when A is the fin projection area to which, in a region on the leeward side, a portion surrounded by an upper short side in the direction in which air passes and a parallel line parallel to the upper short side is projected in a direction toward a fin plate surface, the distance between a heat conductive pipe and a heat conductive pipe adjacent thereto is L, and AL is the fin projection area A when the distance between the upper short side and the parallel line is L, the total projection area B of the cut-and-raised portions to which the cut-and-raised portions on the leeward side crossed by the parallel line are projected in the direction toward the fin plate surface has the relationship B≤34/(5xA) in a region of A>AL, and has the relationship B