INDOOR UNIT FOR AIR CONDITIONING DEVICE, AND AIR CONDITIONING DEVICE

摘要

This indoor unit 100 for an air conditioning device is provided with a centrifugal fan 1 having: a main plate 13 affixed to a rotating shaft; a shroud 14 having a suction opening 141 into which gas flows; a plurality of blades 15 arranged between the main plate 13 and the shroud 14 and respectively joined to first portions of the main plate 13; and discharge openings 16 formed in second portions, which are between the blades 15, and discharging the gas. The main plate 13 has expansion sections 132 at the outer peripheral portion thereof, the expansion sections 132 expanding in the direction in which the height of the discharge openings 16 increases. The expansion sections 132 have circular arcs having a curvature radius, and the first portions have a greater curvature radius larger than the second portions.