FAN GUARD OF BLOWER UNIT AND AIR CONDITIONER

摘要

A frame (4a) is provided around the perimeter of the air outlet (2a) of the fan (6). The frame (4a) includes a plurality of board-shaped ribs (41, 41 ...) extending radially outward from the vicinity of the center of the frame (4a) in the direction of the radius of the fan (6). The frame (4a) also includes a plurality of cylindrical ribs (42, 42...) integrated with the plurality of board-shaped ribs (41, 41...), and arranged concentrically around the rotation axis (O-O') of the fan (6) at predetermined intervals in the direction of the radius of the fan (6). The board-shaped ribs (41) are curved outward in the direction of rotation of the fan (6) and inclined in the direction of air flowing from the fan (6).