FIN AND HEAT SINK HAVING THE SAME
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.
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This application claims the priority benefit of Taiwan patent application number 099115435 filed on May 14, 2010.
BACKGROUND OF THE INVENTION1. Field of the Invention
The present invention relates to a fin and a heat sink having the same, and in particular to a fin capable of preventing the surface of a heat pipe from wearing, increasing the structural strength of the fin, and increasing the heat-conducting efficiency of the fin.
2. Description of Prior Art
With the advancement of semiconductor technology, the volume of an integrated circuit is reduced. In order to make the integrated circuit to process greater amount of data, several times of electronic elements than before are mounted on the integrated circuit of the same volume. The more the electronic elements mounted on the integrated circuit are, the greater the heat generated by the electronic elements is. Taking a central processor as an example, the heat generated by the central processor in its heavy load may even burn down the central processor. Thus, it is an important issue to provide a heat sink for the integrated circuit.
A common heat sink is made of metallic materials of high heat-conducting efficiency. The heat sink is provided with fins to increase the total area for heat dissipation. Further, in order to increase the heat-dissipating effect, a fan is used to generate a compulsive airflow for heat dissipation. Further, heat pipes may be used to facilitate the heat dissipation, thereby preventing the integrated circuit from burning down.
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According to the above, the prior art has disadvantages as follows:
(1) the heat-dissipating fins may suffer damage due to the penetration of the heat pipes;
(2) the heat pipe may be worn due to the rubbing of the heat-dissipating fins against the heat pipe; and
(3) the heat-conducting efficiency of the heat sink is reduced.
Therefore, the present Inventor and the manufacturers in this field have made attempt to solve the problems of prior art.
SUMMARY OF THE INVENTIONIn order to solve the above problems, an objective of the present invention is to provide a fin capable of increasing the heat-conducting efficiency and the structural strength thereof and a heat sink having such fins.
In order to achieve the above objectives, the present invention provides a fin and a heat sink having the fins. The fin includes a body having at least one through-hole and at least one first protrusion, the first protrusion protruding from the periphery of the first through-hole toward one side of the body to form a first protruding end. The fin also has at least one first notch formed on the body in communication with the first through-hole. The first notch has a first portion extending radially from the periphery of the first through-hole in a direction away from the first through-hole, and a second portion extending from the first portion to the first protrusion. The second portion may not penetrate or penetrate the first protruding end. The fins are stacked up to form a fin set. At least one first heat pipe penetrates the first through-holes of the fins to form a heat sink. When the first heat pipe penetrates the first through-holes, the first protruding end of the first protrusion can tightly abut against the first heat pipe due to the expansion of the first notch, thereby increasing the total structural strength of the fins. Further, the first heat pipe can be protected from wearing due to the rubbing of the fins against the heat pipe. Further, the body of the fin can be prevented from suffer damage due to the penetration of the heat pipe. On the other hand, the heat-conducting efficiency can be improved greatly.
Therefore, the present invention has advantages as follows:
(1) the structural strength of the fins is increased;
(2) the surface of the heat pipe is protected from wearing; and
(3) the heat-conducting efficiency is increased.
The above objectives and structural and functional features of the present invention will be described in more detail with reference to preferred embodiments thereof shown in the accompanying drawings
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The second through-hole 43 is also formed on the body 41. The second protrusion 431 extends from the periphery of the second through-hole 43 toward the same side or the other side of the body 41 to form a second protruding end 432 (in the present embodiment, the second protrusion extends toward the other side of the body 41). At least one second notch 433 is formed on the body 41 in communication with the second through-hole 43. The second notch 433 has a third portion 4331 provided on the body 41. The third portion 4331 extends radially from the periphery of the first through-hole 42 in a direction away from the second through-hole 43.
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The first heat pipe 70 has a first heat-releasing end 71 and a first heat-absorbing end 72. The second heat pipe 80 has a second heat-releasing end 81 and a second heat-absorbing end 82. The first heat-releasing end 71 is inserted into the first through-hole 42. The first heat-releasing end 71 penetrates through the first protrusion 421 and the first protruding end 422 to connect the first through-holes 42 of the respective fins 40. When the first heat-releasing end 71 penetrates the first through-hole 42, the first notch 423 allows the first protrusion 421 to expand, so that the first protruding end 422 can abut against the first heat pipe 70. The second heat-releasing end 81 is inserted into the second through-hole 43. The second heat-releasing end 81 penetrates through the second protrusion 431 and the second protruding end 432 to connect the second through-holes 43 of the respective fins 40. When the second heat-releasing end 81 penetrates the second through-hole 43, the second notch 433 allows the second protrusion 431 to expand, so that the second protruding end 432 can abut against the heat pipe. In this way, the first heat pipe 70 penetrates the first through-hole 42 and the second heat pipe 80 penetrates the second through-hole 43. The expansion of the first notch 423 and the second notch 433 can increase the structural strength of the fin 40 and protect the first heat pipe 70 and the second heat pipe 80 from suffering damage or deformation due to the rubbing of the fins 40 against the heat pipes. Also, the body 41 of the fin 40 can be prevented from suffering damage or deformation due to the penetration of the heat pipe. On the other hand, the heat-conducting efficiency can be improved greatly.
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Although the present invention has been described with reference to the foregoing preferred embodiments, it will be understood that the invention is not limited to the details thereof. Various equivalent variations and modifications can still occur to those skilled in this art in view of the teachings of the present invention. Thus, all such variations and equivalent modifications are also embraced within the scope of the invention as defined in the appended claims.
Claims
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.
Type: Application
Filed: Aug 13, 2010
Publication Date: Nov 17, 2011
Applicant: ASIA VITAL COMPONENTS CO., LTD. (Sinjhuang City)
Inventors: Kuo-Sheng Lin (Sinjhuang City), FeiFei Shi (Sinjhuang City)
Application Number: 12/855,708
International Classification: F28D 15/04 (20060101); F28F 7/00 (20060101);