AXIAL FAN WITH BLADE LEADING EDGE THAT PROTRUDES AXIALLY UPSTREAM OF THE HUB AND THAT INCLUDES A BENT (KINK) AS SEEN IN A RADIAL DIRECTION PERPENDICULAR TO THE RADIAL EXTENSION OF THE BLADE

摘要

Provided is an axial fan. The axial fan includes a hub to which a central shaft is coupled and a plurality of blades coupled to the outside of the hub to rotate. The blade includes a hub connection part defining an end of the blade, the hub connection part being coupled to an outer circumferential surface portion of the hub, a tip defining the other end of the blade, a first wing part extending at a first preset gradient from the tip, and a second wing part extending from the first wing part towards the hub, the second wing part having a second preset gradient.