Fan assembly

Abstract

A fan assembly includes a fan and a fan guard positioned on the fan to protect the fan from contamination and damage during operation. The fan includes a plurality of upper corners extending outwardly therefrom. The fan guard includes a frame and a cover covering and fastened to the frame. The frame includes a plurality of protrusions extending downwardly therefrom and a plurality of fastening feet extending upwardly therefrom. The protrusions engage the upper corners of the fan, securing the frame to the fan. The cover comprises a spring component surrounding a bottom thereof, resiliently engaging the fastening feet of the frame. A plurality of pores are defined in the cover, allowing airflow produced by the fan therethrough, wherein the fan guard protects the fan from contamination and damage during operation.

1 . A fan assembly comprising:
 a fan comprising a plurality of upper corners extending outwardly therefrom; and   a fan guard comprising a frame and a cover covering and positioned on the frame;   the frame comprising a plurality of protrusions extending downwardly therefrom and engaging the upper corners of the fan to secure the frame to the fan; and   the cover comprising a spring component surrounding a bottom of the cover and fastening the cover to the frame, wherein a plurality of pores are defined in the cover, allowing airflow produced by the fan therethrough.   
     
     
         2 . The fan assembly as claimed in  claim 1 , wherein the cover is made of one of gauze and netting. 
     
     
         3 . The fan assembly as claimed in  claim 1 , wherein the frame comprises a plurality of fastening feet extending upwardly therefrom, and the spring component of the cover engages the fastening feet resiliently. 
     
     
         4 . The fan assembly as claimed in  claim 3 , wherein the protrusions each comprise a plurality of engaging ribs extending therefrom firmly engaging the upper corners of the fan. 
     
     
         5 . The fan assembly as claimed in  claim 3 , wherein the protrusions each comprise a plurality of engaging ribs extending from an outer sidewall along an axis thereof and firmly engaging inner surfaces of the upper corners of the fan defining mounting holes receiving the protrusions therein, respectively. 
     
     
         6 . The fan assembly as claimed in  claim 4 , wherein the frame comprises a plurality of flanges extending outwardly from side edges thereof and the protrusions are extended perpendicularly and downwardly from the flanges. 
     
     
         7 . The fan assembly as claimed in  claim 6 , wherein the frame defines a plurality of slots in the flanges adjacent to the protrusions. 
     
     
         8 . The fan assembly as claimed in  claim 6 , wherein the frame defines an opening in a center thereof and the fastening feet extend upwardly from an inner circumference of the frame defining the opening, above the flanges of the frame. 
     
     
         9 . The fan assembly as claimed in  claim 8 , wherein the frame comprises an annular rib connecting all of the fastening feet together, above and parallel to the flanges. 
     
     
         10 . The fan assembly as claimed in  claim 9 , wherein the frame comprises a plurality of radiating ribs extending radially and inwardly from the annual rib towards the center of the frame.