Pneumatically cooled enclosed finned heat sinks

Abstract

A heat sink including one or more vented pipes for directing air through a plurality of enclosed chambers formed by a plurality of fins in an enclosed structure having at least a first side and a second side. An air inlet in the first side of the enclosed structure allows pressurized air to enter the plurality of enclosed chambers through the one or more vented pipes. An air outlet in the first side of the enclosed structure allows pressurized air to exit the plurality of enclosed chambers through the one or more vented pipes.

1 . A heat sink including:
 an enclosed structure having at least a first side and a second side;   a plurality of fins in the enclosed structure;   a plurality of enclosed chambers formed by the plurality of fins and the enclosed structure;   one or more vented pipes for directing air through the plurality of enclosed chambers;   an air inlet in the first side of the enclosed structure for allowing pressurized air to enter the plurality of enclosed chambers through the one or more vented pipes; and   an air outlet in the first side of the enclosed structure for allowing pressurized air to exit the plurality of enclosed chambers through the one or more vented pipes.   
   
   
       2 . The heat sink of  claim 1  wherein the one or more vented pipes are vented by means of a plurality of holes. 
   
   
       3 . The heat sink of  claim 2  wherein the one or more vented pipes each include a first hole having a first dimension and a second hole having a second dimension, wherein the first dimension is larger than the second dimension, thereby reducing or eliminating an acoustic resonance for the one or more vented pipes. 
   
   
       4 . The heat sink of  claim 3  wherein the one or more vented pipes are substantially cylindrical. 
   
   
       5 . The heat sink of  claim 4  wherein the one or more vented pipes are capable of circulating air in proximity to the plurality of fins such that the circulated air absorbs thermal energy from the plurality of fins.