Heat dissipation apparatus

Abstract

A heat dissipation apparatus for dissipating heat from two heat sources includes a heat sink, and a fan mounted on the heat sink. The heat sink includes a base and a plurality of parallel fins positioned on the base, the base contacts with one of the two heat sources for thermally conducting the heat generated by the one of the two heat sources. A slantwise slot is formed in the fins, an edge of the slot bent to form a slantwise deflecting portion. The fan is configured to generate airflow through the fins in such a manner that some of the airflow is deflected by the deflecting portion towards the second of the two heat sources.

1 . A heat dissipation apparatus for dissipating heat from two heat sources, comprising:
 a heat sink comprising a base and a fin structure which comprises a plurality of parallel fins, the base contacting with one of the two heat sources for thermally conducting the heat generated by the one of the two heat sources, a slantwise slot formed in the fins, an edge of the slot bent upward between two adjacent fins, the bent edge of the fins are coplanar and corporately form an inclined plane; and   a fan mounted on the heat sink, and capable of generating airflow flowing through the fins in such a manner that some of the airflow is deflected by the inclined plane towards the second of the two heat sources.   
     
     
         2 . The heat dissipation apparatus of  claim 1 , wherein the inclined plane is perpendicular to the plurality of parallel fins. 
     
     
         3 . The heat dissipation apparatus of  claim 1 , wherein an upper edge of the slot is bent to form the inclined plane. 
     
     
         4 . The heat dissipation apparatus of  claim 1 , wherein a lower edge of the slot is bent to form the inclined plane. 
     
     
         5 . The heat dissipation apparatus of  claim 1 , wherein the slot slantwise extends in the fins from a corner adjacent to a first side of the heat sink, a dimension of the bent edge is appropriately equal to a distance between the two adjacent fins. 
     
     
         6 . The heat dissipation apparatus of  claim 5 , wherein the fan is mounted on a second side of the heat sink to generate airflow through the fins in such a manner that airflow flows from the second side of the heat sink to the first side of the heat sink. 
     
     
         7 . The heat dissipation apparatus of  claim 1 , wherein the plurality of parallel fins are perpendicular to the base of the heat sink. 
     
     
         8 . The heat dissipation apparatus of  claim 1 , wherein the heat sink further comprises a plurality of heat pipes passing through the plurality of parallel fins. 
     
     
         9 . The heat dissipation apparatus of  claim 8 , wherein the base comprises a heat conducting plate defining a plurality of grooves on a top surface thereof corresponding to the heat pipes, and a fixing plate defining a plurality of corresponding grooves on a bottom surface thereof. 
     
     
         10 . The heat dissipation apparatus of  claim 9 , wherein a lower portion of each heat pipe is horizontally fixed in the corresponding grooves on the heat conducting plate and fixing plate, and extends upward to pass through the plurality of parallel fins. 
     
     
         11 . The heat dissipation apparatus of  claim 1 , further comprising a mounting bracket with four fastener holes; and the fan further comprises four fixing holes, the fixing holes correspond to the fastener holes, the fan is fixed onto the mounting bracket by four fasteners received in the fixing holes. 
     
     
         12 . A heat dissipation apparatus for dissipating heat from two heat sources, comprising:
 a heat sink comprising a base and a fin structure which comprises a plurality of parallel fins, the base contacting with one of the two heat sources for thermally conducting the heat generated by one of the two heat sources, a slantwise slot formed in the fins adjacent to a first side of the heat sink, an edge of the slot bent upward between two adjacent fins to form a slantwise deflecting portion; and   a fan mounted on the heat sink configured to generate airflow through the fins in such a manner that airflow flows from a second side of the heat sink to the first side of the heat sink, wherein the deflecting portion deflects some of the airflow from the fan towards the second of the two heat sources.   
     
     
         13 . The heat dissipation apparatus of  claim 12 , wherein an upper edge of the slot is bent to form the deflecting portion. 
     
     
         14 . The heat dissipation apparatus of  claim 12 , wherein a lower edge of the slot is bent to form the deflecting portion. 
     
     
         15 . The heat dissipation apparatus of  claim 12 , wherein the slot slantwise extends in the fins from a corner adjacent to the first side of the heat sink, a dimension of the bent edge is appropriately equal to a distance between the two adjacent fins. 
     
     
         16 . The heat dissipation apparatus of  claim 12 , wherein the heat sink further comprises a plurality of heat pipes passing through the plurality of parallel fins.