Molded heat transfer component having vapor chamber and molding method thereof

Abstract

A molding method is provided. The method includes steps of: providing a mold having a male mold forming a column and a female mold forming a cavity; multiple ribs extending along a longitudinal direction of the column are formed on the column; inserting the male mold into the female mold to close the mold to make the column inserted in and separated from an inner surface of the cavity; filling a molten plastic material mixed with metal particles into the cavity so as to make the material fill a space between the column and the cavity; forming a molded heat transfer component covering the column by the solidified plastic material; taking out the molded heat transfer component with the column along the longitudinal direction of the column from the cavity; and separating the molded heat transfer component from the column along the longitudinal direction of the column.

What is claimed is: 
     
         1 . A method for molding a heat transfer component having a vapor chamber, comprising:
 a) providing a mold having a male mold formed with a column and a female mold formed with a cavity, wherein multiple ribs extending along a longitudinal direction of the column are formed on a surface of the column;   b) inserting the male mold into the female mold to close the mold to make the column inserted into the cavity and be out of contact with an inner surface of the cavity;   c) filling a molten plastic material mixed with metal particles into the cavity so as to make the material fill a space between the column and the inner surface of the cavity;   d) waiting for solidification of the plastic material to form a molded heat transfer component covering the column by the solidified plastic material;   e) taking out the molded heat transfer component with the column along the longitudinal direction of the column from the cavity; and   f) separating the molded heat transfer component from the column along the longitudinal direction of the column;   wherein the molded heat transfer component includes a body, a vaper chamber is formed in the body by molding of the column, the vapor chamber has an opening, an inner wall of the vapor chamber is formed with a grooved wick structure with grooves which are perpendicular to the opening and parallel to each other by the ribs.   
     
     
         2 . The method of  claim 1 , wherein an inner surface of the cavity is formed with slots, the molded heat transfer component is formed with fins by the slots, and the fins are parallel to each other and to the grooved wick structure. 
     
     
         3 . The method of  claim 1 , wherein the column is made of graphite. 
     
     
         4 . The method of  claim 1 , wherein a surface of the column is coated with a coating layer made of graphite material or diamond. 
     
     
         5 . The method of  claim 1 , wherein the plastic material is mixed with graphite material. 
     
     
         6 . The method of  claim 4 , wherein the graphite material is graphene particles or carbon nanocapsules. 
     
     
         7 . The method of  claim 5 , wherein the graphite material is graphene particles or carbon nanocapsules. 
     
     
         8 . The method of  claim 1 , further comprising steps of:
 g) sintering the metal particles after removing the solidified plastic material in the molded heat transfer component.   
     
     
         9 . The method of  claim 1 , further comprising steps of:
 h) sealing up the opening after injecting a working fluid into the vapor chamber.   
     
     
         10 . The method of  claim 1 , wherein the male mold is formed with multiple columns, and multiple vapor chambers are formed in the body by the columns. 
     
     
         11 . The method of  claim 1 , wherein in the step c), both the female mold and the male mold are slightly loosened when filling the plastic material, and then tightly close the female mold and the male mold when the plastic material has been filled into the space between the column and the inner surface of the cavity 
     
     
         12 . A molded heat transfer component having a vapor chamber, comprising:
 a body, made of metal in one piece, having a vapor chamber with an opening, and an inner wall of the vapor chamber being formed with a grooved wick structure with grooves which are perpendicular to the opening and parallel to each other by the ribs.   
     
     
         13 . The molded heat transfer component of  claim 12 , wherein a surface of the body is formed with fins, and the fins are parallel to each other and to the grooved wick structure. 
     
     
         14 . The molded heat transfer component of  claim 12 , wherein the opening is provided with a cap. 
     
     
         15 . The molded heat transfer component of  claim 14 , wherein the vapor chamber is injected with a working fluid. 
     
     
         16 . The molded heat transfer component of  claim 12 , wherein the body is embedded with distributed graphite material. 
     
     
         17 . The molded heat transfer component of  claim 12 , wherein a surface of the body is embedded with distributed graphite material. 
     
     
         18 . The molded heat transfer component of  claim 16 , wherein the graphite material is graphene particles or carbon nanocapsules. 
     
     
         19 . The molded heat transfer component of  claim 17 , wherein the graphite material is graphene particles or carbon nanocapsules. 
     
     
         20 . The molded heat transfer component of  claim 12 , wherein the body is formed with multiple vapor chambers, and each of the vapor chambers is of a tubular shape.