Heat sink with vapor chamber

Abstract

A heat sink includes a tank and a plate covering on the tank and hermetically engaging with the tank. The tank includes a base for absorbing heat from heat-generating members and a first wick layer formed at an inner face of base. The plate has a second wick layer formed at an inner face thereof. A chamber is defined between the tank and the plate and contains working fluid therein. An artery mesh is located in the chamber between the tank and the plate. The artery mesh is in porosity communication with the first wick layer and the second wick layer.

1 . A heat sink comprising:
 a tank comprising a base for absorbing heat from a heat-generating member, and a first wick layer formed at an inner face of base;   a plate covering on the tank and hermetically engaging with the tank, the plate having a second wick layer formed at an inner face thereof;   a chamber being defined between the tank and the plate and containing working fluid therein; and   an artery mesh located in the chamber between the tank and the plate, the artery mesh being in porosity communication with the first wick layer and the second wick layer.   
   
   
       2 . The heat sink of  claim 1 , wherein the first wick layer and the second wick layer are in porosity communication. 
   
   
       3 . The heat sink of  claim 1 , wherein the tank comprises sidewalls extending from the base, the first wick layer covering inner faces of the sidewalls. 
   
   
       4 . The heat sink of  claim 3 , wherein the first wick layer covers allover the base and the sidewalls. 
   
   
       5 . The heat sink of  claim 3 , wherein the tank comprises a flange extending from the sidewalls, the flange engaging with the plate. 
   
   
       6 . The heat sink of  claim 5 , wherein the flange parallels to the plate. 
   
   
       7 . The heat sink of  claim 1  further comprising a plurality of fins, wherein the fins thermally contacts the plate. 
   
   
       8 . The heat sink of  claim 7 , wherein the each of the fins is L-shaped. 
   
   
       9 . The heat sink of  claim 8 , wherein each of the fins comprises a contacting portion thermally contacting the plate and a heat dissipating portion extending remote from the plate. 
   
   
       10 . The heat sink of  claim 1 , wherein the artery mesh has an end thereof located at a central portion of the base. 
   
   
       11 . The heat sink of  claim 10 , wherein the artery mesh has another end thereof located at a lateral portion of the base. 
   
   
       12 . The heat sink of  claim 11 , wherein the artery mesh is L-shaped. 
   
   
       13 . The heat sink of  claim 12  further comprising three additional artery meshes located in the chamber, wherein the artery meshes in the chamber define an X-shaped figure between the base and the plate. 
   
   
       14 . The heat sink of  claim 1 , wherein the first wick layer is a sintered wick layer. 
   
   
       15 . The heat sink of  claim 1 , wherein the second wick layer is a meshed wick layer.