Electronic apparatus having cooling system, radiator thereof, and method for manufacturing thereof

Abstract

In an electronic apparatus having a liquid cooling system, and enabling to obtain the optical cooling characteristic or capacitor with an aid of a radiator, which can be disposed or located fitting to a narrow space within a housing thereof, wherein a CPU 200 in deed of cooling thereof is installed within the housing 100, and the liquid cooling system for cooling the CPU comprises a cooling jacket 50 and a radiator therein, and wherein the radiator has a pair of headers 62 and 62, being constructed with disposing a large number of metal thin tubes 61, 61 . . . therebetween, aligning in parallel to each other, and can be change in an outer configuration thereof, easily and freely, and therefore it can be positioned even in the narrow space. Further, a cooling fan 64 or 66 for cooling the radiator 60 compulsively may be disposed therein, and in that case; it is also possible to maintain a position for setting up a motor 65 or 67 for rotationally driving the fan, including therein.

1 . An electronic apparatus, installing a semiconductor element within a housing thereof, which necessitates cooling for maintaining normal operation thereof, in a part of the housing, and having a cooling system, with in said housing or in a part thereof, said cooling system, comprising: 
 a cooling jacket, being thematically connected with said semiconductor element, for transmitting heat generated therein to a liquid coolant flowing within an inside thereof;    a radiator for radiating the heat transmitted into the liquid coolant within said cooling jacket into an outside of the apparatus; and    a circulation pump for circulating said liquid coolant in a loop, including said cooling jacket and said radiator therein, wherein:    said radiator is built up, by disposing a plural number of metal thin tubes aligning in parallel to each other.    
   
   
       2 . The electronic apparatus, as described in the  claim 1 , wherein said metal thin tube has a circular cross-section thereof, and said radiator comprises a ventilating means in a part thereof.  
   
   
       3 . A radiator for use in the electronic apparatus described in the  claim 1 , comprising: 
 at least, a pair of header portions disposed opposing to each other, wherein each of said pair of the header portions comprises:    a plate-like member being made from a member, which is plate-like and is processed into a predetermined shape, with forming a plural number of penetrating holes therein, into which said plural number of the metal tin tubes are inserted; and    a cover portion being formed to have an outer configuration corresponding to that of said plate-like member, and having a recess portion on an interior side thereof, wherein:    said plural number of the metal thin tubes are fixed into said penetrating holes formed at positions corresponding thereto on said plate-like member building up said pair of the header portions, each being inserted therein at a tip thereof, thereby disposing said plural number of the metal thin tubes in parallel with each other.    
   
   
       4 . The radiator, as described in the  claim 3 , wherein said plate-like member and said cover portion are formed to have outer configurations, corresponding to each other.  
   
   
       5 . The radiator, as described in the  claim 3 , wherein each of said plural number of the metal thin tubes fixed to said penetrating holes, being inserted therein at the tips thereof, has flange portions in vicinity of both end portions thereof.  
   
   
       6 . A radiator for use in the electronic apparatus described in the  claim 2 , comprising: 
 at least, a pair of header portions disposed opposing to each other, wherein each of said pair of the header portions comprises:    a plate-like member being made from a member, which is plate-like and is processed into a predetermined shape, with forming a plural number of penetrating holes therein, into which said plural number of the metal tin tubes are inserted; and    a cover portion being formed to have an outer configuration corresponding to that of said plate-like member, and having a recess portion on an interior side thereof, wherein:    said plural number of the metal thin tubes are fixed into said penetrating holes formed at positions corresponding thereto on said plate-like member building up said pair of the header portions, each being inserted therein at a tip thereof, thereby disposing said plural number of the metal thin tubes in parallel with each other.    
   
   
       7 . The radiator, as described in the  claim 6 , wherein said plate-like member and said cover portion are formed to have outer configurations, corresponding to each other.  
   
   
       8 . The radiator, as described in the  claim 6 , wherein each of said plural number of the metal tin tubes fixed to said penetrating holes, being inserted therein at the tips thereof, has flange portions in vicinity of both end portions thereof.  
   
   
       9 . A method for manufacturing the radiator, described in the  claim 3 , comprising the following steps of: 
 preparing said plate-like members and said cover portions for building up said pair of the header portions, and further said plural pieces of the metal thin tubes;    disposing and fixing said plural number of the metal thin tubes on said plate-like members for building up said pair of the header portions, at positions corresponding thereto, respectively; and    disposing and fixing said cover portions on said plate-like members after disposing and fixing said plural number of the metal thin tubes at the corresponding positions.    
   
   
       10 . The method for manufacturing the radiator, described in the  claim 9 , wherein said plural number of the penetrating holes are formed on a surface of said plate-like member through punching process.  
   
   
       11 . The method for manufacturing the radiator, described in the  claim 9 , wherein said plural number of the metal thin tubes are fixed on said plate-like members for building up said pair of the headers, at the corresponding positions, through brazing.