JP3163968U - Fin structure and heat dissipation device thereof - Google Patents

Abstract

A fin structure and a heat dissipating device for the fin that improve the structural strength of the fin by preventing an excessive stress from being applied between a heat pipe surface and a fin to be fitted. A fin structure includes a first through hole and a first convex part 421 that penetrate a main body 41 and a heat pipe. The main body 41 is provided with a first through hole 42 and further from the top of the main body 41 to one side. A first convex portion 421 extending from the edge of the first through hole is formed, and a first notch 423 is formed from the main body 41 to the first convex extended end 422 along the periphery of the first through hole 42. When a fin unit is configured by stacking a plurality of fins 40 and a first heat pipe is assembled to the fin unit to form a heat exchanger, the first heat pipe is pushed into the first through hole 42 and the first notch 423 is The fin 40 is expanded by receiving a force and does not exert an excessive stress on the other portions, so that the fin 40 improves the strength of the entire structure without being damaged. [Selection] Figure 3

Description

The present invention relates to a fin structure and a heat radiating device thereof, and more particularly to a fin structure and a heat radiating device that can prevent the surface of a heat pipe from being damaged, enhance the structural strength of the fin, and increase the heat conduction efficiency.

With the advancement of semiconductor technology, the volume of ICs is gradually shrinking, but in order to allow ICs to perform a lot of data processing, ICs that can achieve several times the capacity of conventional ICs without changing the volume. Can be formed.
As the number of elements in an IC increases, more heat is generated during device operation.
Taking the CPU as an example, the heat generated by the CPU during full operation is such that the CPU is short-circuited, so there is great interest in devices that radiate heat from the IC.

The majority of general heat dissipation devices are made of a metal material having a high thermal conductivity coefficient.
In addition, the heat dissipation area is expanded by fins, and at the same time, in order to enhance the heat dissipation effect, a fan is installed to forcibly dissipate heat. In addition, heat dissipation is accelerated by heat pipes, preventing overheating of IC products. .

As shown in FIGS. 1 and 2, which are a three-dimensional combination diagram and a local schematic diagram of a conventional heat dissipation device, the heat dissipation device 10 includes a plurality of heat pipes 20 having a heat dissipation end 21 and a heat absorption end 22, and a plurality of heat dissipation flow paths. It consists of a plurality of radiating fins 30 that jointly define 31.
On each radiation fin 30, at least one perforation 32 and a convex portion 33 projecting from the periphery of the perforation 32 are provided.
The heat radiating end 21 of the heat pipe 20 is fitted and installed in each radiating fin 30 through the perforations 32 and the convex portions 33, and corresponds to the perforations 32 and the convex portions 33 by a tight compression method.
Thereby, the heat pipe 20 and the heat radiating fin 30 achieve the best heat conduction effect.
The plurality of radiating fins 30 are stacked on top of each other, but the thickness of each radiating fin 30 is very thin in order to reduce material and cost and achieve optimal heat exchange efficiency.
Therefore, the structural strength of the radiating fin 30 is relatively weak as a matter of course.

Further, when the heat pipe 20 is installed through the perforations 32 and the projections 33, the positions of the perforations 32 of the radiating fins 30 are easily deformed and easily damaged by forcibly compressing and assembling the heat pipes 20.
Further, the outer wall of the heat pipe 20 is also easily worn and deformed due to excessive friction caused by the heat radiating fins 30 and affects the heat conduction of the heat pipe 20.
In other words, the conventional techniques have the following drawbacks.
1. Radiation fins are easily damaged by heat pipe assembly.
2. The surface of the heat pipe is easily damaged by the heat radiation fins.
3. Affects heat transfer efficiency.
The present invention has been made in view of the above-described drawbacks of the conventional fin structure and the heat dissipation device.

JP 2001-246521 A

The problem to be solved by the present invention is to provide a fin structure and a heat dissipating device thereof that can improve the heat conduction efficiency and improve the structural strength of the fin.

In order to solve the above-mentioned problems, the present invention provides the following fin structure and its heat dissipation device.
The fin structure consists of a body,
The main body includes at least one first through hole and at least one first convex portion, and at least one first notch is installed on the main body,
The first through-hole penetrates the main body, the first convex portion is formed on the main body, and further protrudes and extends from the main body to one side along the periphery of the first through-hole. Forming a convex extension,
The first notch communicates with the first through hole, and the first notch has a first portion, and extends radially from the first through hole along the periphery of the first through hole,
The second portion extends from the first portion onto the first convex portion, and the second portion does not penetrate the first convex extended end, or penetrates the first convex extended end,
A fin unit is constructed by stacking multiple fin structures,
Between the first through holes of the fins, installed through at least one first heat pipe to constitute a heat dissipation device,
When the first heat pipe enters the first through hole in a close correspondence, the first notch is expanded under force, tightly pressing the first heat pipe together with the first protrusion,
In this way, the strength of the entire fin structure is increased, and at the same time, it is possible to prevent the first heat pipe from being subjected to surface abrasion, deformation, or damage to the fin body due to excessive friction caused by the fins. The conduction efficiency can be greatly increased.

The fin structure of the present invention and the heat dissipating device thereof can increase the structural strength of the entire fin, prevent the heat pipe surface from being worn, and increase the heat conduction efficiency.

It is a three-dimensional view of a conventional heat dissipation device. It is a three-dimensional view of a conventional radiating fin. It is a three-dimensional view of a fin structure first embodiment of the present invention. It is a three-dimensional view of a fin structure second embodiment of the present invention. It is a three-dimensional view of a fin structure third embodiment of the present invention. It is a three-dimensional exploded view of the first embodiment of the heat dissipation device of the present invention. It is a local implementation schematic diagram of the first embodiment of the heat dissipation device of the present invention. It is the three-dimensional combination figure of this invention heat radiating device 1st Example. It is a three-dimensional exploded view of the second embodiment of the present heat dissipation device. It is a local implementation schematic diagram of the second embodiment of the present heat dissipation device. It is the three-dimensional combination figure of this invention heat radiating device 2nd Example. It is a three-dimensional exploded view of a third embodiment of the heat dissipation device of the present invention. It is a local implementation schematic diagram of the third embodiment of the heat dissipation device of the present invention. It is a three-dimensional combination diagram of the third embodiment of the present heat dissipation device.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

3, 4 and 5 are three-dimensional views of the fin structure of the first embodiment of the present invention.
As shown in the figure, the fin 40 includes a main body 41 having a single through hole or a plurality of through holes.

In the present embodiment, the main body 41 includes two through holes. As shown in FIG. 3, the main body 41 includes at least one first through hole 42, at least one second through hole 43, At least one first convex portion 421 and at least one second convex portion 431 are provided.

The first through-hole 42 penetrates the main body 41, and the first convex portion 421 projects from the main body 41 to one side along the peripheral edge of the first through-hole 42 to form a first convex extension. An end 422 is formed, and at least one first notch 423 is formed on the main body 41 and communicates with the first through hole 42.

The first notch 423 includes a first portion 4231 that is radially formed from the first through hole 42 and extends along the periphery of the first through hole 42.

Similarly, the second through hole 43 penetrates the main body 41, and the second convex portion 431 protrudes from the main body 41 toward the same side or the opposite side along the periphery of the second through hole 43. A second convex extended end 432 (in this embodiment, the opposite side is selected and displayed), and at least one second notch 433 is installed on the main body 41, and the second through hole Communicate with 43.

The second notch 433 is provided with a third portion 4331 formed radially extending from the second through hole 43 along the periphery of the first through hole 42.

FIG. 4 is a three-dimensional view of the second embodiment of the fin structure of the present invention.
4 and the first embodiment are substantially the same as those in the embodiment shown in FIG. 4 and the connection relationship, and therefore, the same components and reference numerals of the components are not described here.
The difference between the two is as follows.

The first notch 423 includes a first portion 4231 and a second portion 4232, the first portion 4231 is formed on the main body 41, and radially extends from the first through hole 42 along the periphery of the first through hole 42. Extend.
The second portion 4232 extends from the first portion 4231 toward the first convex portion 421, but does not penetrate to the first convex extended end 422.

The second notch 433 includes a third portion 4331 and a fourth portion 4332, the third portion 4331 is installed on the main body 41, and extends from the second through hole 43 along the periphery of the second through hole 43. It is formed by extending radially.
The fourth portion 4332 extends from the third portion 4331 toward the second convex portion 431 side, but does not reach the second convex extended end 432.

FIG. 5 is a three-dimensional view of a third embodiment of the fin structure of the present invention.
Since the components, connection relations, and operations of the embodiment and the second embodiment shown in FIG. 5 are substantially the same, the same components and reference numerals of the components are not described here.
The difference between the two is as follows.

The second portion 4232 of the first notch 423 extends from the first portion 4231 to the first convex portion 421, and the second portion 4232 reaches the first convex extended end 422 and penetrates therethrough.
The fourth portion 4332 of the second notch 433 extends from the third portion 4331 to the second convex portion 431, and the fourth portion 4332 reaches the second convex extended end 432 and penetrates therethrough.

6, 7, and 8 are a three-dimensional exploded view, a local implementation schematic diagram, and a three-dimensional combination diagram of the first embodiment of the heat dissipation device of the present invention.
The present embodiment includes a heat radiating device 50 having the fin 40 structure.

The heat dissipation device 50 includes a fin unit 60, at least one first heat pipe 70, and at least one second heat pipe 80.

The fin unit 60 includes a plurality of fins 40.
Each of the fins 40 includes a main body 41. The main body 41 includes at least one first through hole 42, at least one second through hole 43, at least one first convex portion 421, and at least one one. A second convex portion 431 is provided.

The first convex portion 421 protrudes from the main body 41 to one side along the periphery of the first through hole 42 to form a first convex extended end 422.

At least one first notch 423 is formed in the body 41. The first notch 423 includes a first portion 4231 and extends radially from the first through hole 42 along the periphery of the first through hole 42. To form.

The second convex portion 431 extends along the periphery of the second through-hole 43 from the main body 41 to the opposite side, forms a second convex extended end 432, and at least one second notch 433. The second notch 433 includes a third portion and extends radially from the second through hole 43 along the periphery of the second through hole 43.

The first heat pipe 70 and the second heat pipe 80 include a first heat radiating end 71, a first heat absorbing end 72, a second heat radiating end 81, and a second heat absorbing end 82, respectively.
The first heat radiating end 71 is connected to the first through hole 42 in combination.
The first heat radiating end 71 enters in a tightly compressed manner from the first convex portion 421 and exits from the first convex extended end 422.

Thus, the first heat pipe 70 is installed through the first through hole 42 of the fin 40, and the first notch 423 is inserted into the first through hole 42 so that the first heat pipe 70 enters the first through hole 42. The one convex portion 421 is expanded by receiving force, and the heat pipe 70 is tightly pressed together with the first convex portion 421.

The second heat radiating end 81 is connected to the second through hole 43 in combination.
The second heat radiating end 81 enters in a tightly compressed manner from the second convex portion 431 and exits from the second convex extending end 432.

Thereby, the second heat pipe 80 is installed through the second through hole 43 of the fin 40, and the second notch 433 is inserted into the second through hole 43 by the second heat pipe 80. The second convex portion 431 is expanded by receiving force, and the second heat pipe 80 is tightly pressed together with the second convex extending portion 431.

Thus, the first heat pipe 70 and the second heat pipe 80 enter the first through hole 42 and the second through hole 43 in close compression, and the first notch 423 and the second notch 433 Expands in response to force and does not exert excessive stress on other portions, so that the strength of the entire fin 40 structure can be increased.

In addition, the surface of the first heat pipe 70 and the second heat pipe 80 are prevented from being worn and deformed due to excessive friction with the fin 40, or the passage of the heat pipe causes damage to the fin 40 body, deformation, etc. The phenomenon can be prevented and the heat conduction efficiency can be greatly increased.

9, 10 and 11 are a three-dimensional exploded view, a local implementation schematic diagram, and a three-dimensional combination diagram of the second embodiment of the heat dissipating device of the present invention.
Since the components, connection relations, and operations of the embodiment shown in the figure and the first embodiment are substantially the same, the same components and reference numerals of the components are not described here.
The difference between the two is as follows.

The first notch 423 includes a first portion 4231 and a second portion 4232.
The second portion 4232 extends from the first portion 4231 to the first convex portion 421, but does not penetrate to the first convex extended end 422.

The second notch 433 includes a third portion 4331 and a fourth portion 4332.
The fourth portion 4332 extends from the third portion 4331 to the second convex portion 431 but does not penetrate to the second convex extended end 432.

As a result, when the first heat pipe 70 and the second heat pipe 80 enter the first through hole 42 and the second through hole 43 in close compression, the first notch 423 and the second notch 433 are used. Since the first part 4231 and the second part 4232 and the third part 4331 and the fourth part 4332 are simultaneously expanded by receiving force simultaneously and do not exert excessive stress on other parts, the entire structure of the fin 40 The strength of can be expanded.

In addition, the surface of the first heat pipe 70 and the second heat pipe 80 are prevented from being worn and deformed due to excessive friction with the fin 40, or the passage of the heat pipe causes damage to the fin 40 body, deformation, etc. The phenomenon can be prevented and the heat conduction efficiency can be greatly increased.

12, 13, and 14 are a three-dimensional exploded view, a local implementation schematic diagram, and a three-dimensional combination diagram of a third embodiment of the heat dissipation device of the present invention.
Since the components, connection relations, and operations of the embodiment and the second embodiment shown in the drawings are substantially the same, the same components and reference numerals of the components are not described here.
The difference between the two is as follows.

The second portion 4232 of the first notch 423 extends from the first portion 4231 to the first convex portion 421, and the second portion 4232 reaches the first convex extended end 422 and penetrates therethrough.
The fourth portion 4332 of the second notch 433 extends from the third portion 4331 to the second convex portion 431, and the fourth portion 4332 reaches and penetrates the second convex extended end 432.

Thus, when the first heat pipe 70 and the second heat pipe 80 enter the first through hole 42 and the second through hole 43 in close compression, the first part 4231, the second part 4232, and the second Similarly, since the third portion 4331 and the fourth portion 4332 are expanded by receiving a force and do not exert excessive stress on other portions, the strength of the entire fin 40 structure can be increased.

At the same time, surface abrasion and deformation of the first heat pipe 70 and the second heat pipe 80 due to excessive friction with the fins 40 can be prevented, and the heat conduction efficiency can be greatly increased.

The names and contents of the present invention described above are only used for explaining the technical contents of the present invention, and do not limit the present invention. Equivalent applications based on the spirit of the present invention, conversion of parts (structure), replacement, increase / decrease in quantity are all included in the protection scope of the present invention.

The present invention has a novelty that is a requirement for a utility model registration request, has sufficient progress compared to similar products of the past, has high practicality, meets social needs, and has a very high industrial utility value. Big.

40 fins
41 body
42 1st through hole
421 1st convex part
422 First convex extension
423
4231 1st part
4232 Second part
43 Second through hole
431 Second convex part
432 Second convex extension
433 Second notch
4331 Third part
4332 Fourth part
50 Heat dissipation device
60 Fin unit
70 1st heat pipe
71 First heat radiation end
72 First endotherm
80 second heat pipe
81 Second heat radiation end
82 Second endotherm

Claims (20)

A fin structure in which a plurality of heat dissipating fins are arranged at intervals,
The fin body includes at least one first through hole and at least one first convex portion that penetrate the heat pipe,
The first convex portion forms a first convex extended end that protrudes and extends from the fin main body to one side along the periphery of the first through-hole,
Further, the fin structure and the heat dissipating device thereof are characterized in that at least one first notch communicating from the fin main body to the first through hole is formed. The first notch is provided with a first portion in the fin body,
The fin structure according to claim 1, wherein the first portion is provided to extend radially from the first through hole along the periphery of the first through hole. The first notch comprises a first part and a second part;
The first portion is formed in the fin body by extending radially from the first through hole along the periphery of the first through hole,
The fin structure according to claim 1, wherein the second portion extends from the first portion toward the first convex extended end, but does not reach the first convex extended end. The first notch comprises a first part and a second part;
The first portion is formed on the fin body by extending radially in the opposite direction of the first through hole along the periphery of the first through hole,
The fin structure according to claim 1, wherein the second portion extends from the first portion toward the first convex extended end and reaches the first convex extended end. The fin body includes at least one first through hole and at least one first protrusion that penetrate the heat pipe, and
Furthermore, it comprises at least one second through hole and at least one second convex part that penetrate the heat pipe,
The second convex part forms a second convex extended end that protrudes and extends from the fin body to the opposite side of the first convex end along the periphery of the second through hole,
The fin structure according to claim 1, 2, 3, or 4, wherein at least one second notch communicating from the fin body to the second through hole is formed.   The second notch is characterized in that a third portion is provided in the fin body, and the third portion is provided extending radially from the second through hole along the periphery of the second through hole. The fin structure according to claim 5 and a heat dissipation device thereof. The second notch includes a third part and a fourth part, the third part is provided in the fin body, and is formed by extending radially from the second through hole along the periphery of the second through hole,
The fin structure according to claim 5, wherein the fourth portion extends from the third portion to the second convex extended end and does not reach the second convex extended end. The second notch includes a third part and a fourth part, and the third part is formed in the fin body by extending radially from the second through hole along the periphery of the second through hole,
The fin structure according to claim 5, wherein the fourth portion extends from the third portion onto the second convex extended end and reaches the second convex extended end. A heat dissipation device,
A fin unit including a plurality of fins, a fin body, and at least one first heat pipe,
The fin main body includes at least one first through hole and at least one first convex portion penetrating the heat pipe, and the first convex portion extends along the periphery of the first through hole. Forming a first convex extended end projecting from one side to the other, and further forming at least one first notch communicating from the fin body to the first through hole,
The at least one first heat pipe includes at least one first heat radiating end and at least one first heat absorbing end, and the first heat radiating end is installed by being fitted into the first through hole of the fin. A heat dissipation device. The first notch is provided with a first part in the main body,
The heat radiating device according to claim 9, wherein the first portion is radially extended from the first through hole along the periphery of the first through hole. The first notch comprises a first part and a second part;
The first part is formed in the fin body, extending radially from the first through hole along the periphery of the first through hole,
The heat radiating device according to claim 9, wherein the second portion extends from the first portion to the first convex extended end, but does not reach the first convex extended end. The first notch comprises a first part and a second part;
The first portion is formed in the fin body by extending radially from the first through hole along the periphery of the first through hole,
2. The heat dissipation device according to claim 1, wherein the second portion extends from the first portion toward the first convex extended end and reaches the first convex extended end. The fin body further includes at least one second through hole and at least one second convex portion,
The second convex portion forms a second convex extended end that protrudes and extends from the fin main body to the opposite side of the first convex end along the peripheral edge of the second through hole. The heat radiating device according to claim 9, 10, 11, or 12, wherein at least one second notch communicating with the second through hole is formed.   The second notch is characterized in that a third part is provided on the main body, and the third part is provided by extending radially from the second through hole along the periphery of the second through hole. The heat dissipation device according to claim 13. The second notch includes a third portion and a fourth portion, the third portion is disposed on the main body, radially along the periphery of the second through hole, and in a direction opposite to the second through hole. Extend,
14. The heat dissipation device according to claim 13, wherein the fourth portion extends from the third portion onto the second convex extended end but does not reach the second convex extended end. The second notch comprises a third portion and a fourth portion;
Providing the third part to the fin body;
Provided radially extending from the second through hole along the periphery of the second through hole,
The heat radiating device according to claim 13, wherein the fourth portion extends from the third portion to the second convex extended end and reaches the second convex extended end.   The first heat dissipating end of the first heat pipe enters from the first convex portion, exits from the first convex extending end, and is thus fitted and installed in the first through hole of the fin. The heat radiating device according to claim 9.   The first notch expands when the first heat pipe is inserted and fitted into the first through hole, and the first convex portion receives force, and the heat pipe is tightly pressed together with the first convex portion. The heat dissipating device according to claim 9. The heat dissipation device further includes a second heat pipe,
The second heat pipe includes a second heat absorbing end and a second heat radiating end, and the second heat radiating end enters from the second convex portion, exits from the second convex extended end, and The heat dissipating device according to claim 13, wherein the heat dissipating device is installed in a through hole.   The second notch is expanded when the second heat pipe is inserted and fitted into the second through-hole, and the second convex portion receives force, and the heat pipe is tightly coupled with the second convex extension portion. The heat dissipation device according to claim 19, wherein the heat dissipation device is compressed.

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