Heat sink structure and manufacturing method thereof

Abstract

A heat sink structure and a manufacturing method thereof. The heat sink includes a main body having multiple main body connection sections and multiple radiating fins each having a connection section. The main body has a first end and a second end. The first and second ends define a longitudinal direction. The multiple radiating fins are placed in a mold. A mechanical processing measure is used to high-speed impact the main body so as to thrust the main body into the mold. Accordingly, the connection sections of the radiating fins placed in the mold are high-speed thrust into the main body connection sections and moved in the longitudinal direction to the second end of the main body to tightly integrally connect with the main body.

What is claimed is: 
     
         1 . A heat sink structure comprising:
 a main body having a first end and a second end, the first and second ends defining a longitudinal direction, multiple main body connection sections being formed between the first and second ends and distributed over a circumference of the main body; and   multiple first radiating fins connected with the circumference of the main body, each first radiating fin having a first connection section corresponding to the main body connection section, a mechanical processing measure being used to high-speed impact the main body toward the first radiating fins, whereby the first connection sections of the first radiating fins are high-speed thrust from the first end of the main body into the main body connection sections and moved in the longitudinal direction to the second end to tightly integrally connect with the main body.   
     
     
         2 . The heat sink structure as claimed in  claim 1 , wherein the main body connection section is a connection channel, while the first connection section is a first end edge of the first radiating fin. 
     
     
         3 . The heat sink structure as claimed in  claim 1 , wherein the main body connection section is a rib, while the first connection section is a connection channel. 
     
     
         4 . The heat sink structure as claimed in  claim 1 , wherein the main body connection sections are distributed over the circumference of the main body equivalently or inequivalently. 
     
     
         5 . The heat sink structure as claimed in  claim 1 , wherein the first connection section corresponds to outer surface of the main body and has a guide section, the guide section being a round angle or a reverse angle. 
     
     
         6 . The heat sink structure as claimed in  claim 1 , wherein the first connection section has a right angle. 
     
     
         7 . The heat sink structure as claimed in  claim 1 , wherein the main body is formed with multiple thrust sections in communication with the main body connection sections. 
     
     
         8 . The heat sink structure as claimed in  claim 1 , wherein one of the main body connection section and the first connection section is formed with a raised/recessed non-planar surface, while the other of the main body connection section and the first connection section is formed with a planar surface or a raised/recessed non-planar surface. 
     
     
         9 . The heat sink structure as claimed in  claim 2 , wherein the main body connection sections are radially distributed over the circumference of the main body and the main body connection sections are normal to the surface of the main body or inclined to the surface of the main body by a certain angle. 
     
     
         10 . The heat sink structure as claimed in  claim 9 , wherein the first connection section of the first radiating fin is formed with a first bending root section. 
     
     
         11 . The heat sink structure as claimed in  claim 9 , wherein the first radiating fin is straight without bending or is formed with at least one first bending angle. 
     
     
         12 . The heat sink structure as claimed in  claim 11 , further comprising multiple second radiating fins, each second radiating fin having a second connection section immediately adjacent to the first connection section of the first radiating fin, along with the first connection section, the second connection section being high-speed thrust into the main body connection section from the first end of the main body to the second end in the longitudinal direction, whereby one first connection section and one second connection section are tightly integrally fitted in each main body connection section with the first radiating fin adjacent to the second radiating fin. 
     
     
         13 . The heat sink structure as claimed in  claim 12 , wherein the second connection section is a second end edge of the second radiating fin. 
     
     
         14 . The heat sink structure as claimed in  claim 12 , wherein the second radiating fin is straight without bending or is formed with at least one second bending angle, the angle of the first bending angle being equal to or unequal to the angle of the second bending angle. 
     
     
         15 . The heat sink structure as claimed in  claim 12 , wherein the first radiating fin is made of a first material, while the second radiating fin is made of a second material, the first material being a metal material and the second material being also a metal material, the first material being identical or not identical to the second material. 
     
     
         16 . The heat sink structure as claimed in  claim 15 , wherein the metal is selected from a group consisting of gold, silver, copper, aluminum and an alloy thereof. 
     
     
         17 . The heat sink structure as claimed in  claim 14 , wherein the first radiating fin has a first thickness and the second radiating fin has a second thickness, the first thickness being equal to or unequal to the second thickness. 
     
     
         18 . The heat sink structure as claimed in  claim 14 , wherein the first radiating fin is formed with a first bending root section and the second radiating fin is formed with a second bending root section. 
     
     
         19 . A manufacturing method of a heat sink, comprising steps of:
 providing a mold, the mold having an inner circumference, an upper surface and multiple splits, the inner circumference defining an internal space, the multiple splits being radially formed around the internal space in communication with the internal space and downward extending from the upper surface;   providing a main body having a first end and a second end, the first and second ends of the main body defining a longitudinal direction, multiple main body connection sections being formed between the first and second ends and distributed over a circumference of the main body, the first end of the main body being aimed at the internal space;   providing multiple first radiating fins, the first radiating fins being received in the splits, at least one first radiating fin being placed in each split, each first radiating fin having a first connection section, the first connection sections of the first radiating fins protruding from the inner circumference of the mold; and   using a mechanical processing measure to high-speed impact the main body so as to thrust the main body into the internal space and move the main body relative to the multiple first radiating fins, whereby the first connection sections of the first radiating fins are high-speed thrust into the main body connection sections and moved in the longitudinal direction to the second end to tightly integrally connect with the main body.   
     
     
         20 . The manufacturing method of the heat sink as claimed in  claim 19 , wherein the main body is temporarily positioned above the mold and the mechanical processing measure is an air compression apparatus for creating compressed air to thrust the main body into the internal space. 
     
     
         21 . The manufacturing method of the heat sink as claimed in  claim 19 , wherein a central body is disposed in the internal space in alignment with the main body. 
     
     
         22 . The manufacturing method of the heat sink as claimed in  claim 19 , wherein multiple second radiating fins are further provided, the first and second radiating fins being together received in the splits, at least one first connection section and at least one second connection section being placed in each split, each second radiating fin having a second connection section, the second connection sections of the second radiating fins protruding from the inner circumference of the mold to be thrust into the main body connection sections and connected with the main body.