Enclosure

Abstract

An enclosure includes a main body defining an opening, and a venting apparatus. The venting apparatus includes a first body defining a number of first vents, and a second body defining a number of second vents. The first body is fixed to the main body to cover the opening. The second body is pivotably attached to an outer surface of the first body. The second body may be rotated relative to the first body to partly overlap the first vents with the second vents to adjust the rate or volume of airflow permitted through a heat-generating device.

1 . An enclosure comprising:
 a main body defining an opening; and   a venting apparatus comprising a first body defining a plurality of first vents, and a second body defining a plurality of second vents;   wherein the first body is fixed to the main body to cover the opening, the second body is pivotably attached to an outer surface of the first body, the second body is operable to be rotated relative to the first body.   
     
     
         2 . The enclosure of  claim 1 , wherein the first body and the second body are both circular-plate-shaped. 
     
     
         3 . The enclosure of  claim 2 , wherein the diameter of the first body is greater than the diameter of the second body. 
     
     
         4 . The enclosure of  claim 1 , further comprising a fastener to pivotably mount the second body to the first body, wherein the first body defines a first through hole in a center of the first body, the second body defines a second through hole in a center of the second body, the fastener comprising a pole extending through the first through hole and the second through hole. 
     
     
         5 . The enclosure of  claim 4 , wherein the first body defines a locking hole at a side of the first through hole, the fastener further comprises a head formed from one end of the pole adjacent to the first body, a tab extends from the head to engage in the locking hole. 
     
     
         6 . The enclosure of  claim 4 , wherein the fastener further comprises a threaded portion formed an end of the pole adjacent to the second body, a nut is screwed to the threaded portion. 
     
     
         7 . The enclosure of  claim 6 , wherein a washer and a resilient member are set around the pole between the second body and the nut. 
     
     
         8 . The enclosure of  claim 1 , wherein the main body comprises a sidewall, the opening is defined in the sidewall, a plurality of fixing portions is set on a side of the first body, for fixing the first body to the sidewall to cover the opening. 
     
     
         9 . The enclosure of  claim 8 , wherein the fixing portions are magnet or adhesive. 
     
     
         10 . The enclosure of  claim 1 , wherein a plurality of signs are marked on a side of the outer surface of the first body, an arrowhead is marked on a side of an outer surface of the second body, the arrowhead points to one of the signs to indicate the degree of overlap between the first and second vents.