SPIRAL FAN ASSEMBLY

摘要

PURPOSE: A spiral fan assembly is provided to reduce the size of a blowing fan system, in which the spiral fan assembly is installed, by allowing the spiral fan assembly to generate a great amount of wind having great wind pressure. CONSTITUTION: A spiral fan assembly includes a rotating shaft(11) rotatably coupled to a driving motor, a cylindrical hub(12) fixedly coupled to the rotating shaft(11), a plurality of blades(13) formed at an outer peripheral portion of the cylindrical hub(12) in a spiral pattern, and a fan housing(14) surrounding a rotational route of the blades(13). The fan housing(14) has a hollow cylindrical structure both ends of which are opened. A plurality of protrusions are formed at an inner portion of each blade(13) with a uniform interval. Two blades(13) are installed in the outer peripheral portion of the cylindrical hub(12) at an 180degs interval.