SPIRAL FAN ASSEMBLY

摘要

PURPOSE: A spiral fan assembly is provided to reduce the size of a blowing fan system without limiting an installation position of the spiral fan assembly by allowing the spiral fan assembly to generate a great amount of wind with great wind pressure. CONSTITUTION: A spiral fan assembly includes a rotating shaft(11) coupled to a driving motor such that the rotating shaft(11) is rotated, 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 surrounding a rotational route of the blades(13). The fan housing(14) has a hollow cylindrical structure both ends of which are opened. One of both ends of the fan housing(14) forms an expansion part(14a), which is expanded radially outward direction so that intake loss of air is minimized when air is introduced into the fan housing(14).