Electronic component cooling apparatus

Abstract

A cooling apparatus has a heat sink that has a plurality of fins on the top face of a heat transfer plate opposed to a heat-generating body to be cooled in contact therewith. Comb-like baffle plates or raised baffle plates are inserted between the fins of the heat sink. This structure improves heat dissipation characteristics.

What is claimed is:  
     
         1 . A cooling apparatus comprising: 
 a heat transfer plate having a heat-receiving surface;    a heat sink having a plurality of fins erected on said heat transfer plate on a surface opposed to said heat-receiving surface;    a blower for said heat sink; and    baffling members each for controlling an air path between said fins of said heat sink.    
     
     
         2 . The cooling apparatus of  claim 1 , wherein each of said baffling members makes a clearance between said fins smaller than other portions.  
     
     
         3 . The cooling apparatus of  claim 1 , wherein one of said baffling member and corresponding one of said fins are in contact with each other.  
     
     
         4 . The cooling apparatus of  claim 1 , wherein each of said baffling members is shaped like one of a plate, column, and comb.  
     
     
         5 . A cooling apparatus comprising: 
 a heat transfer plate having a heat-receiving surface;    a heat sink having a plurality of fins erected on said heat transfer plate on a surface opposed to said heat-receiving surface;    a blower for said heat sink; and    air-guiding members each inserted between said fins of said heat sink for guiding an air path toward a central portion of said heat sink.    
     
     
         6 . The cooling apparatus of  claim 5 , wherein one of said air-guiding members and corresponding one of said fins are in contact with each other.  
     
     
         7 . A cooling apparatus comprising: 
 a heat transfer plate having a heat-receiving surface;    a heat sink having a plurality of fins erected on said heat transfer plate on a surface opposed to said heat-receiving surface;    a blower for said heat sink; and    air-guiding members each inserted between said fins of said heat sink for guiding an air path toward a central portion of said heat transfer plate.    
     
     
         8 . A cooling apparatus comprising: 
 a heat transfer plate opposed to a heat-generating body in contact therewith and protruding oppositely to a heat-receiving surface thereof;    a heat sink having a plurality of fins erected on said heat transfer plate on a surface opposed to said heat-receiving surface;    a fan as a blower for said heat sink; and    baffle plates each disposed between said fins of said heat sink.    
     
     
         9 . The cooling apparatus of  claim 8 , wherein each of said baffle plates disposed between said fins of said heat sink is perpendicular to a fan-attaching surface.  
     
     
         10 . The cooling apparatus of  claim 8 , wherein each of said baffle plates disposed between said fins of said heat sink is at an angle with respect to a fan-attaching surface.  
     
     
         11 . The cooling apparatus of any one of claims  9  and  10 , wherein each of said baffle plates disposed between said fins of said heat sink is shaped like a comb.  
     
     
         12 . The cooling apparatus of any one of claims  9  and  10 , wherein each of said baffle plates disposed between said fins of said heat sink is formed by cutting and raising a portion of each fin.  
     
     
         13 . The cooling apparatus of any one of claims  9  and  10 , wherein said baffle plates are disposed between said fins of said heat sink so that at least two baffle plates corresponds to one fin.  
     
     
         14 . A cooling apparatus comprising: 
 a heat transfer plate opposed to a heat-generating body in contact therewith and protruding oppositely to a heat-receiving surface thereof;    a heat sink having a plurality of fins erected on said heat transfer plate on a surface opposed to said heat-receiving surface;    a blower for said heat sink; and    baffle plates disposed on a side wall of said heat sink through which air is blown.    
     
     
         15 . The cooling apparatus of  claim 11  further comprising: 
 a duct for guiding exhausted fluid to an outside of the cooling apparatus;  
 wherein said blower is disposed one of between said duct and a housing wall and in the middle of said duct.  
 
     
     
         16 . The cooling apparatus of  claim 12  further comprising: 
 a duct for guiding exhausted fluid to an outside of the cooling apparatus;  
 wherein said blower is disposed one of between said duct and a housing wall and in the middle of said duct.  
 
     
     
         17 . A cooling apparatus comprising: 
 a heat transfer plate having a heat-receiving surface;    a heat sink having:. 
 a plurality of fins erected on said heat transfer plate on a surface opposed to said heat-receiving surface; and  
 baffling members each for controlling an air path between said fins of said heat sink;  
   a fan for blowing air from said heat sink; and    a duct as an air path for said fan.