Water Block And Manufacturing Method Thereof

Abstract

In a water block and its manufacturing method, a porous microchannel structure adopts a first casing and a second casing to form a water block. Water inlet and outlet pipes are extended from both ends of the first casing respectively. The second casing has a porous microchannel structure made by sintering a heat conducting powder and formed on an internal side of the second casing. The second casing has a contact surface on its external side for absorbing and conducting a heat source to the porous microchannel structure, such that a coolant can flow from the water inlet pipe into the water block. The porous microchannel structure produces turbulent flows to the coolant, so as to extend the staying time of the coolant in the water block, and allow the coolant to fully exchange heat with the porous microchannel structure and flow out from the water outlet pipe.

1 . A water block, comprising: 
 a water block body, being a hollow box, and having at least one water inlet pipe and at least one water outlet pipe; and    at least one microchannel structure, being a porous structure formed by a powder and disposed in the water block body.    
   
   
       2 . The water block of  claim 1 , wherein the water block body has a contact surface at a bottom surface of the water block body.  
   
   
       3 . The water block of  claim 1 , wherein the water block body is made of a metal material or a ceramic material.  
   
   
       4 . The water block of  claim 1 , wherein the water block body comprises a first casing and a second casing engaged with each other.  
   
   
       5 . The water block of  claim 4 , wherein the second casing further includes a plurality of heat sinks.  
   
   
       6 . The water block of  claim 5 , wherein the heat sinks are parallel to each other.  
   
   
       7 . The water block of  claim 4 , wherein the second casing further includes at least one heat column.  
   
   
       8 . The water block of  claim 4 , wherein the first casing and the second casing have a plurality of heat sinks.  
   
   
       9 . The water block of  claim 8 , wherein the heat sinks of the first casing and the second casing are arranged alternately.  
   
   
       10 . A method of manufacturing a water block, comprising the steps of: 
 preparing a first casing and a second casing;    pressing and shaping a powder;    putting a tooling at a predetermined position of a second casing;    putting the powder in the tooling;    sintering the powder into a porous microchannel structure; and    coupling the first casing and the second casing to form a water block body.    
   
   
       11 . The method of  claim 10 , further comprising a step of adding a binder on the powder.  
   
   
       12 . The method of  claim 11 , wherein the binder is one selected from stearic acid and wax.  
   
   
       13 . The method of  claim 10 , wherein a shaping machine is used for pressing and shaping the powder.  
   
   
       14 . The method of  claim 10 , wherein the powder is pressed and shaped in a shape selected from the collection of a circular shape, a square shape, and an irregular shape.  
   
   
       15 . The method of  claim 10 , wherein the powder is pressed and shaped in a particle in a shape selected from the collection of a circular shape, a square shape, and an irregular shape.  
   
   
       16 . The method of  claim 10 , wherein the first casing and the second casing are coupled by soldering, riveting, or binding.