Patent ID: 8348594

Claim:
A centrifugal fan comprising: an impeller comprising a hub and a plurality of blades extending radially from the hub; and a housing receiving the impeller therein, the housing comprising a bottom wall, a sidewall extending upwardly from the bottom wall and a bracket for supporting the impeller thereon, the bottom wall defining an air inlet therein, a plurality of protruding posts extending downwardly from a bottom surface of the bottom wall around the air inlet, each of the protruding posts defining a screw hole therein, the bracket being located in the air inlet, the bracket defining a plurality of through holes corresponding to the protruding posts respectively, the protruding posts of the bottom wall respectively inserted into the through holes of the bracket, a plurality of fasteners respectively engaged in the screw holes of the protruding posts thereby connecting the bracket and the bottom wall together.