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.

1 - 18 . (canceled) 
     
     
         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.