Water-cooled heat sink and water-cooled system

Abstract

There is provided a water-cooled heat sink including first and second heat transfer channel plates that are stacked and coupled together. The first heat transfer channel plate is provided with a continuous recess that is located in a facing surface thereof that faces the second heat transfer channel plate, corresponds to the coolant channel, and is open at the facing surface, the second heat transfer channel plate is provided with a continuous protrusion, which is fitted into the recess of the first heat transfer channel plate with a gap therebetween, in a facing surface thereof that faces the first heat transfer channel plate, and the first and second heat transfer channel plates are stacked and coupled together to define the coolant channel between the recess and the protrusion.

1 . A water-cooled heat sink in which a coolant channel for allowing a coolant to flow therethrough is formed in a heat transfer body that contacts a heat generating source, the water-cooled heat sink comprising:
 first and second heat transfer channel plates that are stacked and coupled together,   wherein the first heat transfer channel plate has a continuous recess that is located in a facing surface thereof that faces the second heat transfer channel plate, corresponds to the coolant channel, and is open at the facing surface,   wherein the second heat transfer channel plate has a continuous protrusion, which is fitted into the recess of the first heat transfer channel plate with a gap therebetween, in a facing surface thereof that faces the first heat transfer channel plate, and   wherein the first and second heat transfer channel plates are stacked and coupled together to define the coolant channel between the recess and the protrusion.   
   
   
       2 . The water-cooled heat sink according to  claim 1 ,
 wherein the heat generating source thermally contacts the second heat transfer channel plate.   
   
   
       3 . The water-cooled heat sink according to  claim 2 , wherein the heat generating source directly contacts the second heat transfer channel plate. 
   
   
       4 . The water-cooled heat sink according to  claim 2 ,
 wherein the heat generating source indirectly contacts the second heat transfer channel plate.   
   
   
       5 . The water-cooled heat sink according to  claim 1 ,
 wherein the cross-sectional shape of the recess and the cross-sectional shape of the protrusion are rectangular.   
   
   
       6 . The water-cooled heat sink according to  claim 1 ,
 wherein the cross-sectional shapes of the recess and the cross-sectional shapes of the protrusion are semicircular or oblong.   
   
   
       7 . The water-cooled heat sink according to  claim 1 ,
 wherein the cross-sectional shape of the recess and the cross-sectional shape of the protrusion are triangular.   
   
   
       8 . A water-cooled system comprising:
 a water-cooled heat sink in which a coolant channel for allowing a coolant to flow therethrough is formed in a heat transfer body that contacts a heat generating source;   a liquid pump having a discharge port that communicates with an inlet hole of the coolant channel of the water-cooled heat sink, and a suction port that communicates with an outlet hole of the coolant channel; and   a heat-radiating unit formed in a channel that connects the outlet hole with the suction port, the water-cooled heat sink including first and second heat transfer channel plates that are stacked and coupled together,   wherein the first heat transfer channel plate has a continuous recess that is located in a facing surface thereof that faces the second heat transfer channel plate, corresponds to the coolant channel, and is open at the facing surface,   wherein the second heat transfer channel plate has a continuous protrusion, which is fitted into the recess of the first heat transfer channel plate with a gap therebetween, in a facing surface thereof that faces the first heat transfer channel plate, and   wherein the first and second heat transfer channel plates are stacked and coupled together to define the coolant channel between the recess and the protrusion.   
   
   
       9 . The water-cooled system according to  claim 8  wherein the heat transfer body directly contacts a heat generating source. 
   
   
       10 . The water-cooled system according to  claim 8  wherein the heat transfer body indirectly contacts a heat generating source. 
   
   
       11 . The water-cooled system according to  claim 8 ,
 wherein the heat generating source thermally contacts the second heat transfer channel plate.   
   
   
       12 . The water-cooled system according to  claim 11  wherein the heat generating source thermally directly contacts the second heat transfer channel plate. 
   
   
       13 . The water-cooled system according to  claim 11  wherein the heat generating source thermally indirectly contacts the second heat transfer channel plate. 
   
   
       14 . The water-cooled system according to  claim 8 ,
 wherein the cross-sectional shape of the recess of the first heat transfer channel plate and the cross-sectional shape of the protrusion of the second heat transfer channel plate are rectangular.   
   
   
       15 . The water-cooled system according to  claim 8 ,
 wherein the cross-sectional shape of the recess of the first heat transfer channel plate and the cross-sectional shape of the protrusion of the second heat transfer channel plate are oblong.   
   
   
       16 . The water-cooled system according to  claim 8 ,
 wherein the cross-sectional shape of the recess of the first heat transfer channel plate and the cross-sectional shape of the protrusion of the second heat transfer channel plate are triangular.