AXIAL FAN OF AIR CONDITIONER OUTDOOR UNIT FOR SUPPRESSING TURBULENT FLOW GENERATED AT BLADE SURFACE OF AXIAL FAN

摘要

PURPOSE: An axial fan of an air conditioner outdoor unit is provided to suppress a turbulent flow generated at a blade surface of an axial fan in order to reduce noise generated from the axial fan. CONSTITUTION: An axial fan of an air conditioner outdoor unit includes a hub connected to a rotational shaft of a motor and a plurality of blades integrally formed at an outer surface of the hub. Two blades are formed at the outer surface of the hub. A ratio of a diameter of the hub(142) to an outer diameter of a fan(140) is in a range of about 0.35-0.4. A ratio of a total area of the fan to an area of the blade is in a range of about 0.85 0.05. A range of a camber amount of the hub(142) is 5.0 1.0. A rake base line formed at the outer surface of the hub(140) is inclined with a rake angle of about 23 .