PROPELLER FAN, BLOWER DEVICE, AND OUTDOOR EQUIPMENT

摘要

Provided is a propeller fan (1), including: a boss (3) ; and a plurality of blades (5), each of the plurality of blades including a pressure surface (13) and a suction surface (15), in which: when a connecting portion between the pressure surface and a side surface of the boss is defined as a pressure surface-side boundary portion (17p), and a connecting portion between the suction surface and the side surface of the boss is defined as a suction surface-side boundary portion (17s), a curvature of the suction surface-side boundary portion is smaller than a curvature of the pressure surface-side boundary portion; and as a blade area projected on a plane orthogonal to the rotation axis, a blade area of the suction surface is larger than a blade area of the pressure surface.