Vapor chamber with support structure and manufacturing method therefor

Abstract

A vapor chamber with a support structure and its manufacturing method are provided. The vapor chamber with the support structure includes a first plate, a second plate spaced apart from the first plate, and multiple support elements fixed between the first and second plates. On an outer surface of any of the first plate or the second plate, laser welding is performed on positions corresponding to the support elements so as to join the support elements to the first and second plates and to form weld ports on the outer surface of any of the plates. The invention solves the problem of fixing the support structure inside the thin vapor chamber, and therefore mass production can be realized.

What is claimed is: 
     
         1 . A vapor chamber with a support structure, comprising:
 a first plate including an outer surface and an inner surface, a periphery of the first plate including a sealing edge extending outwardly, and a level difference existing between the first plate and the sealing edge;   a second plate, the second plate also including an outer surface and an inner surface, the inner surface of the second plate being spaced apart from the inner surface of the first plate, and the second plate covering the first plate to form a chamber ( 12 ); and   a plurality of support elements fixed between the inner surfaces of the first and second plates, the outer surface of the first plate including a plurality of weld ports formed by laser welding, and the weld ports being disposed corresponding to the support elements, respectively.   
     
     
         2 . The vapor chamber with the support structure according to  claim 1 , wherein the vapor chamber has a thickness of 0.1 to 0.8 mm. 
     
     
         3 . The vapor chamber with the support structure according to  claim 1 , wherein a capillary layer is disposed on a surface of the first plate or a surface of the second plate corresponding to the chamber. 
     
     
         4 . The vapor chamber with the support structure according to  claim 1 , wherein the first and second plates are made of copper, titanium, or stainless steel. 
     
     
         5 . The vapor chamber with the support structure according to  claim 1 , wherein each of the first and second plates has a thickness of 0.02 to 0.2 mm. 
     
     
         6 . The vapor chamber with support structure according to  claim 1 , wherein the support element is a pillar-shaped or strip-shaped structure. 
     
     
         7 . The vapor chamber with the support structure according to  claim 6 , wherein the weld port is dot shaped or strip shaped. 
     
     
         8 . The vapor chamber with the support structure according to  claim 6 , wherein the weld port is dot shaped weld ports spaced apart from each other in a line. 
     
     
         9 . The vapor chamber with the support structure according to  claim 1 , wherein each of the support elements ( 3 ) has a thickness of 0.025 to 0.25 mm. 
     
     
         10 . A manufacturing method for a vapor chamber with a support structure, comprising following steps:
 S 1 ) preparing a first plate, a second plate and a plurality of support elements, the first plate including an outer surface and an inner surface, and the second plate including an outer surface and an inner surface;   S 2 ) placing the support elements between the inner surface of the first plate and the inner surface of the second plate; and   S 3 ) applying laser welding to the outer surface of the first plate or the outer surface of the second plate at positions corresponding to the support elements, so that the first and second plates are joined to the support elements.   
     
     
         11 . The manufacturing method for the vapor chamber with the support structure according to  claim 10 , wherein in step S 2 ), the support elements are disposed on the first plate or the second plate, and then one of the plates is covered by the other plate. 
     
     
         12 . The manufacturing method for the vapor chamber with the support structure according to  claim 10 , wherein in step S 3 ), laser welding is dot welding or strip-shaped welding. 
     
     
         13 . The manufacturing method for the vapor chamber with the support structure according to  claim 10 , wherein in step S 3 ), the laser welding is dot welding and performed along a line in a spaced apart manner. 
     
     
         14 . The manufacturing method for the vapor chamber with the support structure according to  claim 10 , wherein in step S 3 ), on both the outer surface of the first plate and the outer surface of the second plate, the laser welding is applied to weld positions corresponding to the support elements, so that the first and second plates are joined to the support elements.