Vapor chamber and edge-sealing structure thereof

Abstract

A vapor chamber includes a first cover and a second cover covering on the first cover. The first cover has its periphery bent to form a first folded edge, and the second cover has its periphery bent to form a second folded edge. The second folded edge is superposed on the first folded edge. The first folded edge is bent to cover the second folded edge. A wick structure is arranged inside the first cover and the second cover. A working fluid is filled between the first cover and the second cover. By this structure, the tightness of the sealing edges of the vapor chamber is enhanced. The production yield of the vapor chamber is increased and the production cost is reduced.

1 . A vapor chamber, comprising:
 a first cover having its periphery bent to form a first folded edge;   a second cover covering on the first cover and having its periphery bent to form a second folded edge, the second folded edge being superposed on the first folded edge with the first folded edge being bent to cover on the second folded edge;   a wick structure arranged inside the first cover and the second cover; and   a working fluid filled between the first cover and the second cover.   
     
     
         2 . The vapor chamber according to  claim 1 , further comprising a supporting structure for supporting the wick structure to abut against inner walls of the first cover and the second cover. 
     
     
         3 . The vapor chamber according to  claim 2 , wherein the supporting structure is formed into a plate, the plate is provided thereon with a plurality of protrusions and through-holes, the through-holes are formed between the protrusions, a portion of the protrusions protrude from one surface of the plate, and the other portion of the protrusions protrude from the other surface of the plate. 
     
     
         4 . The vapor chamber according to  claim 1 , further comprising a soldering material disposed in a connecting portion between the first folded edge and a second folded edge. 
     
     
         5 . The vapor chamber according to  claim 1 , wherein one side of the second folded edge is provided with a recess, the first folded edge is provided with a protrusion to correspond to the recess of the second folded edge, whereby the first folded edge is tightly engaged with the second folded edge. 
     
     
         6 . The vapor chamber according to  claim 1 , wherein two opposite sides of the second folded edge are respectively provided with a recess, two opposite sides of the first folded edge are respectively provided with a protrusion to correspond to the recesses of the second folded edge, whereby the first folded edge is tightly engaged with the second folded edge. 
     
     
         7 . An edge-sealing structure of a vapor chamber, comprising:
 a first cover having its periphery bent to form a first folded edge; and   a second cover covering on the first cover and having its periphery bent to form a second folded edge, the second folded edge being superposed on the first folded edge with the first folded edge being bent to cover on the second folded edge.   
     
     
         8 . The edge-sealing structure of a vapor chamber according to  claim 7 , further comprising a soldering material disposed in a connecting portion between the first folded edge and the second folded edge. 
     
     
         9 . The edge-sealing structure of a vapor chamber according to  claim 7 , wherein one side of the second folded edge is provided with a recess, the first folded edge is provided with a protrusion to correspond to the recess of the second folded edge, whereby the first folded edge is tightly engaged with the second folded edge. 
     
     
         10 . The edge-sealing structure of a vapor chamber according to  claim 7 , wherein two opposite sides of the second folded edge are respectively provided with a recess, two opposite sides of the first folded edge are respectively provided with a protrusion to correspond to the recesses of the second folded edge, whereby the first folded edge is tightly engaged with the second folded edge.