Vapor chamber structure with improved wick and method for manufacturing the same

Abstract

A vapor chamber structure includes a casing, a working fluid, and an improved wick layer. The casing has an airtight vacuum chamber. The working fluid is filled into the airtight vacuum chamber. The wick layer is formed on a surface of the airtight vacuum chamber. Therefore, the present invention can increase the backflow velocity of the working fluid and improve the boiling of the working fluid due to the match of the improved wick structure. Because the backflow velocity and boiling of the working fluid is increased, the heat-transmitting efficiency is increased.

1 . The method for manufacturing a pre-fabricated improved wick outside and apart from the vapor chamber, such wick layer formed by a plurality of wick elements adjoined to each other such that they create a continuous, porous layer. 
     
     
         2 . The method as claimed in  claim 1  wherein the joining method for the wick elements is by a high temperature process over 350 degrees Celsius. 
     
     
         3 . The method as claimed in  claim 2  wherein the joining method is chosen from sintering, diffusion bonding, copper-copper oxide eutectic bonding, or brazing. 
     
     
         4 . The method as claimed in  claim 1  wherein the method reduces the wick layer thickness in certain locations. 
     
     
         5 . The method as claimed in  claim 4  wherein wick elements are reduced in number or eliminated in those areas of reduced wick layer thickness. 
     
     
         6 . The method as claimed in  claim 5  wherein adjoined wick elements are compressed in those areas of reduced wick layer thickness. 
     
     
         7 . The method as claimed in  claim 1  wherein the method increases the wick layer thickness in certain locations. 
     
     
         8 . The method as claimed in  claim 7  wherein wick elements are increased in number in those areas of increased wick layer thickness. 
     
     
         9 . The method as claimed in  claim 1  wherein the method includes the addition of structure strengthening bodies to the wick layer in certain locations. 
     
     
         10 . The method as claimed in  claim 1  wherein the method includes the addition of backflow accelerating bodies to the wick layer in certain locations. 
     
     
         11 . The method as claimed in  claim 1  wherein the method includes bending or forming the wick layer in certain locations. 
     
     
         12 . The method as claimed in  claim 1  wherein the method includes the use of wick elements of different sizes or types. 
     
     
         13 . The method as claimed in  claim 12  wherein the method includes arranging certain of the wick elements by size or type within certain areas of the wick. 
     
     
         14 . The method as claimed in  claim 13  wherein the method arranges wick elements by size in the vertical direction with either the smallest elements on top or conversely with the largest elements on top to form a piece-wise continuous or continuous gradient of wick element sizes. 
     
     
         15 . The method as claimed in  claim 13  wherein the method arranges wick elements by size in the plan or horizontal direction from elements of smaller to larger size to form a piece-wise continuous or continuous gradient of wick element sizes. 
     
     
         16 . The method as claimed in  claim 13  wherein the method arranges wick elements of different sizes or types in multiple layers, with at least one layer of one size or type of wick element and another layer of a second size or type of wick element. 
     
     
         17 . The method as claimed in  claim 16  wherein the method arranges wick elements of different sizes or types in multiple layers, with at least one layer of one size or type of wick element and another layer of a second size or type of wick element, and also provides communication or a via in certain locations from a first wick layer to a third wick layer through an intervening second wick layer. 
     
     
         18 . The method as claimed in  claim 13  wherein the method arranges wick elements of different sizes or types such that one or more patches of a wick element of one size or type are arranged within a field of substantially a wick element of a second size or type. 
     
     
         19 . The method as claimed in  claim 18  wherein the method arranges wick elements of different sizes or types such that more than one patches of a wick element of one size or type are arranged within a field of substantially a wick element of a second size or type, and there is a communication between the wick elements of the first size or type. 
     
     
         20 . The method as claimed in  claim 19  wherein the method provides communication between patches by creating pathways between patches of the same wick element that forms the patches. 
     
     
         21 . The method as claimed in  claim 19  wherein the method provides communication between patches by using wick elements of a third type or by no wick elements at all to create the communication pathways, as distinguished from using the first wick elements or the second wick elements. 
     
     
         22 . The method as claimed in  claim 13  wherein the method arranges wick elements of different sizes or types both in multiple layers and with patches of wick elements of different sizes or types within a field comprised of wick elements of a different size or type within certain layers, and providing for communication between patches within layers horizontally and for communication between layers vertically, such method consisting of the structured arrangement of wick elements of different sizes or types in certain locations starting with a first layer and subsequently adding additional layers one atop the other with the structured arrangement of wick elements of different sizes or types in certain locations on each subsequent layer.