Patent ID: 9562536
Date: 2017-02-07
CPC Classifications: F04D

Claim:
1. A fan structure, comprising: a fan rack including an accommodation open chamber extending through opposing top and bottom sides of said accommodation open chamber, said fan rack having a plurality of corner portions, a center base suspended at the center of a bottom side of said accommodation open chamber, a plurality of connection ribs radially and equiangularly connected between said center base and an inner perimeter of said fan rack, and a mating connection structure located in each of said corner portions of said fan rack; and a fan including a fan body made from a hard material, and a soundproofing molding made from a flexible material and directly molded on said fan body, said fan body including a hub rotatably mounted at said center base of said fan rack and a plurality of radial blades spirally and equally spaced around an outer perimeter of said hub, each said radial blade defining an inner blade surface at an inner side thereof and an outer bearing surface at an opposing outer side thereof, said soundproofing molding including a hub covering molded on said hub of said fan body, a plurality of buffer portions respectively molded on the inner blade surfaces of said radial blades, and a locating part respectively molded on the outer bearing surfaces of said radial blades.