Fin and heat sink having the same

Abstract

The present invention provides a fin and a heat sink. The fin includes a body having at least one first through-hole and at least one first protrusion. The first protrusion extends from the first through-hole toward one side of the body to form a first protruding end. At least one first notch is provided on the body in communication with the first through-hole. The fins are stacked up to form a fin set. A first heat pipe penetrates the fin set to constitute the heat sink. The first heat pipe penetrates the first through-hole while the first notch is expanded, so that the first protruding end tightly abuts against the first heat pipe. In this way, the structural strength of the fin is improved, the first heat pipe is protected from wearing due to the rubbing of fins against the heat pipe, and the heat-conducting efficiency is increased.

1 . A fin, comprising:
 a body having at least one first through-hole and at least one first protrusion, the first protrusion extending from the periphery of the first through-hole toward one side of the body to form a first protruding end, at least one first notch being provided on the body in communication with the first through-hole.   
     
     
         2 . The fin according to  claim 1 , wherein the first notch has a first portion formed on the body, the first portion extends radially from the periphery of the first through-hole in a direction away from the first through-hole. 
     
     
         3 . The fin according to  claim 1 , wherein the first notch has a first portion and a second portion, the first portion is formed on the body and extends radially form the periphery of the first through-hole in a direction away from the first through-hole, the second portion extends from the first portion to the first protrusion without penetrating the first protruding end. 
     
     
         4 . The fin according to  claim 1 , wherein the first notch has a first portion and a second portion, the first portion is formed on the body and extends radially form the periphery of the first through-hole in a direction away from the first through-hole, the second portion extends from the first portion to the first protrusion and penetrates the first protruding end. 
     
     
         5 . The fin according to  claim 1 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         6 . The fin according to  claim 2 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         7 . The fin according to  claim 3 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         8 . The fin according to  claim 4 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         9 . The fin according to  claim 5 , wherein the second notch has a third portion formed on the body, the third portion extends radially from the periphery of the second through-hole in a direction away from the second through-hole. 
     
     
         10 . The fin according to  claim 5 , wherein the second notch has a third portion and a fourth portion, the third portion is formed on the body and extends radially from the periphery of the second through-hole in a direction away from the second through-hole, the fourth portion extends from the third portion to the second protrusion without penetrating the second protruding end. 
     
     
         11 . The fin according to  claim 5 , wherein the second notch has a third portion and a fourth portion, the third portion is formed on the body and extends radially from the periphery of the second through-hole in a direction away from the second through-hole, the fourth portion extends from the third portion to the second protrusion and penetrates the second protruding end. 
     
     
         12 . A heat sink, comprising;
 a fin set having a plurality of fins, each of the fins comprising a body, the body having at least one first through-hole and at least one first protrusion, the first protrusion extending from the periphery of the first through-hole toward one side of the body to form a first protruding end, at least one first notch being provided on the body in communication with the first through-hole; and   at least one first heat pipe having at least one first heat-releasing end and at least one first heat-absorbing end, the first heat-releasing end penetrating the first through-holes of the respective fins.   
     
     
         13 . The heat sink according to  claim 12 , wherein the first notch has a first portion formed on the body, the first portion extends radially from the periphery of the first through-hole in a direction away from the first through-hole 
     
     
         14 . The heat sink according to  claim 12 , wherein the first notch has a first portion and a second portion, the first portion is formed on the body and extends radially form the periphery of the first through-hole in a direction away from the first through-hole, the second portion extends from the first portion to the first protrusion without penetrating the first protruding end. 
     
     
         15 . The heat sink according to  claim 12 , wherein the first notch has a first portion and a second portion, the first portion is formed on the body and extends radially form the periphery of the first through-hole in a direction away from the first through-hole, the second portion extends from the first portion to the first protrusion and penetrates the first protruding end. 
     
     
         16 . The heat sink according to  claim 12 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         17 . The heat sink according to  claim 13 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         18 . The heat sink according to  claim 14 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         19 . The heat sink according to  claim 15 , further comprising at least one second through-hole and at least one second protrusion, the second through-hole being formed on the body, the second protrusion extending from the periphery of the second through-hole toward the other side of the body to form a second protruding end, at least one second notch being formed on the body in communication with the second through-hole. 
     
     
         20 . The heat sink according to  claim 16 , wherein the second notch has a third portion formed on the body, the third portion extends radially from the periphery of the second through-hole in a direction away from the second through-hole. 
     
     
         21 . The heat sink according to  claim 16 , wherein the second notch has a third portion and a fourth portion, the third portion is formed on the body and extends radially from the periphery of the second through-hole in a direction away from the second through-hole, the fourth portion extends from the third portion to the second protrusion without penetrating the second protruding end. 
     
     
         22 . The heat sink according to  claim 16 , wherein the second notch has a third portion and a fourth portion, the third portion is formed on the body and extends radially from the periphery of the second through-hole in a direction away from the second through-hole, the fourth portion extends from the third portion to the second protrusion and penetrates the second protruding end. 
     
     
         23 . The heat sink according to  claim 12 , wherein the first heat-releasing end of the first heat pipe penetrates through the first protrusion and the first protruding end to connect the first through-holes of the respective fins. 
     
     
         24 . The heat sink according to  claim 12 , wherein the first notch allows the first protrusion to expand when the first heat pipe penetrates the first through-hole, the protruding end of the expanded first protrusion abuts against the first heat pipe. 
     
     
         25 . The heat sink according to  claim 16 , further comprising a second heat pipe, the second heat pipe having a second heat-absorbing end and a second heat-releasing end, the second heat-releasing end penetrates the second protrusion and the second protruding end to connect the second through-holes of the respective fins, 
     
     
         26 . The heat sink according to  claim 25 , wherein the second notch allows the second protrusion to expand when the second heat pipe penetrates the second through-hole, the protruding end of the expanded second protrusion abuts against the second heat pipe.