CENTRIFUGAL FAN, AIR CONDITIONER

摘要

An environment friendly conditioner with a centrifugal fan in which noise is lowered furthermore and installation workability is enhanced while enhancing reliability of product during transportation and reducing the packing materials. Assuming the edge of a blade located on the downstream side for the air supply direction as the trailing edge of blade, profile of the centrifugal fan satisfies a relation that the outside diameter of a shroud rim cover is larger than the outside diameter of the shroud rim cover on the trailing edge side of blade which is larger than the outside diameter on the center plate side at the trailing edge of blade which is not smaller than the outside diameter of the center plate. The trailing edge of blade is located on the inside of a line connecting the joint of the trailing edge of blade and the center plate and the joint of the trailing edge of blade and the shroud rim cover when viewed from the axis of rotation, and the distance to the axis of rotation is lengthened from the center plate toward the shroud rim cover.