TWI747714B - Heat dissipation module and manufacturing method thereof - Google Patents

Abstract

A heat dissipation module and manufacturing method thereof are provided. The heat dissipation module has a heat pipe, a plurality of heat dissipation fins and rings. The heat pipe has an outer-ring wall. Each heat dissipation fin has a perforation and a ring wall formed round an edge of the perforation. The heat dissipation fins are mounted on the heat pipe at interval overlapping manner through each perforation. Each ring is sleeved on each ring wall in a tight manner so that each ring wall is embedded and tightened on the outer-ring walls. Thereby, the heat dissipation structure has excellent heat dissipation efficiency and structural strength.

Description

Heat dissipation module and manufacturing method thereof

The invention relates to a heat dissipation module including a heat pipe and a plurality of heat dissipation fins, and more particularly to a heat dissipation module and a manufacturing method thereof.

According to the fact that as the computing speed of electronic components continues to increase, the heat generated by them is getting higher and higher. In order to effectively solve the problem of high heat generation, the industry has designed various types of heat dissipation devices to provide heat dissipation, but the existing heat dissipation There is still room for improvement in the actual application of the device.

The conventional heat dissipation device mainly includes a heat pipe, a heat conduction block and a plurality of heat dissipation fins. The heat pipe penetrates the heat conduction block, and the plurality of heat dissipation fins are arranged in series on the heat pipe, and then the heat conduction block is attached to electronic components such as the central processing unit. Dissipate the heat of the electronic components such as the central processing unit to the external environment through the heat pipe and the fin group.

However, in the process of arranging the plurality of heat dissipation fins in series on the heat pipe, if the heat dissipation fins cannot be firmly positioned on the heat pipe, the heat dissipation efficiency and structural strength of the heat dissipation device will be affected. Therefore, how to securely fix the heat dissipation fins on the heat pipe is a problem that the heat dissipation device industry needs to solve urgently.

In view of this, the inventor of the present invention focused on the above-mentioned prior art, and made great efforts to solve the above-mentioned problems, which became the goal of the present inventor's development.

The present invention provides a heat dissipation module and a manufacturing method thereof, which utilizes a ring ring to be sleeved on a ring wall in a tight manner, so that the ring wall is embedded and tightened on the outer ring wall, so that the heat dissipation module has excellent heat dissipation efficiency And structural strength.

In an embodiment of the present invention, the present invention provides a heat dissipation module, including: a heat pipe with an outer ring wall; A ring wall, the plurality of radiating fins are sleeved on the heat pipe in an overlapping manner through each of the through holes; Embedded and tightened to the outer ring wall.

In an embodiment of the present invention, the present invention provides a method for manufacturing a heat dissipation module, the steps of which include: a) providing a heat dissipation fin, the heat dissipation fin is provided with a through hole and a ring wall formed on the outer periphery of the through hole; b) Provide a ring, the ring is a conical ring, the conical ring has an upper bottom opening and a lower bottom opening arranged on top and bottom, the inner diameter of the upper bottom opening is smaller than the outer diameter of the ring wall , The inner diameter of the lower bottom opening is larger than the outer diameter of the ring wall, and the tapered ring is sleeved on the ring wall; c) a heat pipe is provided, and the heat dissipation fin is tightly sleeved on the heat pipe through the perforation And d) providing an extrusion jig that presses down the tapered ring so that the tapered ring is deformed and tightly sleeved on the ring wall until the The ring wall is pressed and deformed by the ring ring to be embedded and tightened to the outer ring wall.

In an embodiment of the present invention, the present invention provides a method for manufacturing a heat dissipation module, the steps of which include: e) providing a heat dissipation fin, the heat dissipation fin is provided with a through hole and a ring wall formed on the outer periphery of the through hole; f) Provide a ring, the ring is a cylindrical ring, the cylindrical ring is tightly sleeved on the outside of the ring wall; g) Provide a heat pipe, the heat pipe has an outer ring wall, the heat dissipation The fins are tightly sleeved on the outside of the heat pipe through the perforation; and h) an extrusion jig is provided to the The cylindrical ring performs internal pressure operation until the ring wall is pressed and deformed by the ring to be embedded and tightened on the outer ring wall.

Based on the above, when the radiating fins are tightly sleeved on the outside of the heat pipe through the perforations, the heat pipe will slightly support the ring wall, resulting in the radiating fins cannot be firmly positioned on the heat pipe, and then the ring is sleeved tightly Ring wall, the ring wall will be squeezed by the ring to be embedded and tightened to the outer ring wall, so that the ring wall is closely thermally attached to the outer ring wall, so that the heat of the heat pipe can be quickly transferred to the radiating fins, and at the same time dissipate heat. The fins can also be firmly positioned on the heat pipe to achieve excellent heat dissipation efficiency and structural strength of the heat dissipation module.

10: Cooling module

1: Heat pipe

11: Outer ring wall

112: Cylindrical ring groove

12: top

2: cooling fins

21: Piercing

22: Ring Wall

222: Columnar Ring Wall

23: Embossed lap joint

24: Tenon

3: ring

31: Conical ring

311: upper bottom opening

312: bottom opening

32: Cylindrical ring

S1, S2, S3: inner diameter

W1, W2: outer diameter

100: Extrusion fixture

a~h: steps

FIG. 1 is a flowchart of the steps of the manufacturing method of the heat dissipation module of the present invention.

Figure 2 is a three-dimensional view of the ring of the present invention to be sleeved on the ring wall.

Fig. 3 is a perspective view of the heat dissipation fins of the present invention to be sheathed on the heat pipe.

Figure 4 is a cross-sectional view of the heat dissipation fins of the present invention to be sleeved on the heat pipe.

Fig. 5 is a three-dimensional view of a plurality of heat dissipation fins of the present invention to be sequentially fitted on the heat pipe.

Fig. 6 is a cross-sectional view of a plurality of heat dissipation fins of the present invention to be sequentially nested on the heat pipe.

Figure 7 is a three-dimensional view of the present invention in which a plurality of heat dissipation fins have been sheathed on the heat pipe.

Fig. 8 is a cross-sectional view of the heat pipe with the plurality of heat dissipation fins of the present invention.

Figure 9 is a partial enlarged view of the part selected by the dotted line in Figure 8.

10 is a flowchart of another embodiment of the manufacturing method of the heat dissipation module of the present invention.

Figure 11 is a three-dimensional view of another embodiment of the ring of the present invention to be sleeved on the ring wall.

FIG. 12 is a cross-sectional view of another embodiment of the heat dissipation fins to be sleeved on the heat pipe of the present invention.

FIG. 13 is a cross-sectional view of another embodiment of the present invention where a plurality of heat dissipation fins have been sleeved on the heat pipe.

Figure 14 is a cross-sectional view of the internal pressure operation of the cylindrical ring by the extrusion jig of the present invention.

The detailed description and technical content of the present invention will be described as follows in conjunction with the drawings. However, the accompanying drawings are for illustrative purposes only, and are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 9. The present invention provides a heat dissipation module and a manufacturing method thereof. The heat dissipation module 10 mainly includes one or more heat pipes 1, a plurality of heat dissipation fins 2 and a plurality of rings 3.

As shown in FIG. 1, the steps of the method for manufacturing the heat dissipation module 10 of the present invention are described in detail as follows. First, as shown in step a of FIG. 1 and FIG. 2, a heat dissipation fin 2 is provided. The heat dissipation fin 2 is provided with a through hole 21 and a ring wall 22 formed on the outer periphery of the through hole 21. Among them, the number of perforations 21 and ring walls 22 on the heat dissipation fin 2 of this embodiment is plural, but it is not limited thereto.

Second, as shown in step b of Figure 1 and Figures 2 to 4, a ring 3 is provided. The ring 3 is a conical ring 31, and the conical ring 31 has an upper bottom opening 311 configured up and down. And the bottom opening 312, the inner diameter S2 of the upper bottom opening 311 is smaller than the outer diameter W2 of the ring wall 22, and the inner diameter S3 of the lower bottom opening 312 is greater than the outer diameter W2 of the ring wall 22. The tapered ring 31 is sleeved on the ring On the wall 22.

The detailed description is as follows. In step b, the inner diameter of the tapered ring 31 is gradually reduced in size from the lower bottom opening 312 to the upper bottom opening 311.

Wherein, the size difference between the inner diameter S2 of the upper bottom opening 311 and the outer diameter W2 of the ring wall 22 is between 0.05 mm and 0.1 mm, and the size difference between the inner diameter S3 of the lower bottom opening 312 and the outer diameter W2 of the ring wall 22 is between 0.05 mm to 0.1 mm, and the number of the ring 3 in this embodiment is plural, but it is not limited thereto.

In addition, the hardness of the ring 3 is greater than that of the ring wall 22. For example, the ring wall 22 is made of copper, and the ring 3 is made of aluminum, iron, or stainless steel, which has a hardness greater than copper.

Third, as shown in step c of FIG. 1 and FIGS. 3 to 6, a heat pipe 1 is provided. The heat pipe 1 has an outer ring wall 11, and the heat dissipation fins 2 are tightly sleeved outside the heat pipe 1 through the through holes 21. Among them, the number of heat pipes 1 in this embodiment is plural, but it is not limited thereto.

In addition, in step c, the heat pipe 1 has a top end 12, the lower bottom opening 312 is disposed adjacent to the top end 12 compared to the upper bottom opening 311, the heat dissipation fins 2 are sleeved on the heat pipe 1 from the top end 12 of the heat pipe 1, and the wall 22 It is a cylindrical ring wall 222, the inner diameter S1 of the cylindrical ring wall 222 is smaller than the outer diameter W1 of the heat pipe 1, and the size difference between the inner diameter S1 of the cylindrical ring wall 222 and the outer diameter W1 of the heat pipe 1 is between 0.05 mm and 0.1 mm, so that the cylindrical ring wall 222 is tightened on the outer ring wall 11. For example, when the outer diameter W1 of the heat pipe 1 is 8 mm, the inner diameter S1 of the cylindrical ring wall 222 is about 7.9 mm, but this is not a limitation.

Fourth, as shown in step d of Figure 1 and Figures 5 to 9, an extrusion jig 100 is provided. The extrusion jig 100 presses down the tapered ring 31 so that the tapered ring 31 is deformed. The ring wall 22 is tightly sleeved until the ring wall 22 is pressed and deformed by the ring 3 to be embedded and tightened to the outer ring wall 11.

Further description is as follows. In step d, the ring 3 is sleeved on the ring wall 22 in a tight manner, so that the outer ring wall 11 is squeezed by the ring wall 22 to form a cylindrical ring groove 112, and the cylindrical ring wall 222 is tightly pressed. It is embedded in the cylindrical ring groove 112 so that each ring wall 22 is embedded and tightened to the outer ring wall 11.

In addition, the number of radiating fins 2 in this embodiment is plural. The plurality of radiating fins 2 are sleeved on the heat pipe 1 through the through holes 21 in an overlapping manner. The plurality of convex-shaped lap joints 23 and a plurality of latches 24 inserted between two adjacent convex-shaped lap joints 23 extend outward, so that the plurality of heat dissipation fins 2 are firmly overlapped and stacked together.

As shown in Figs. 4-9, the heat dissipation module 10 of the present invention is in use. When the heat dissipation fins 2 are tightly sleeved on the outside of the heat pipe 1 through the through holes 21, the heat pipe 1 slightly supports the large ring wall 22. As a result, the radiating fin 2 cannot be firmly positioned on the heat pipe 1, and then the ring 3 is sleeved on the ring wall 22 in a tight manner, then the ring The wall 22 will be squeezed by the ring 3 to be embedded and tightened to the outer ring wall 11, so that the ring wall 22 is closely thermally attached to the outer ring wall 11, so that the heat of the heat pipe 1 can be quickly transferred to the heat dissipation fin 2. At the same time, the heat dissipation fins 2 can also be firmly positioned on the heat pipe 1, so that the heat dissipation module 10 has excellent heat dissipation efficiency and structural strength.

In addition, the ring wall 22 is squeezed toward the heat pipe 1 by the ring 3, so that the part of the ring wall 22 is reliably embedded in and tightens the outer ring wall 11 of the heat pipe 1, thereby further enhancing the heat dissipation efficiency and structural strength of the heat dissipation module 10.

Please refer to FIG. 10 to FIG. 14, which is another embodiment of the method of manufacturing the heat dissipation module 10 of the present invention. As shown in FIG. 10, the steps of another embodiment of the method of manufacturing the heat dissipation module 10 of the present invention are described in detail. as follows.

First, as shown in step e of FIG. 10 and FIG. 11, a heat dissipation fin 2 is provided. The heat dissipation fin 2 is provided with a through hole 21 and a ring wall 22 formed on the outer periphery of the through hole 21. Among them, the number of perforations 21 and ring walls 22 on the heat dissipation fin 2 of this embodiment is plural, but it is not limited thereto.

Second, as shown in step f of Figure 10 and Figures 11 to 12, a ring 3 is provided. The ring 3 is a cylindrical ring 32. The cylindrical ring 32 is tightly sleeved on the ring wall 22 external.

Wherein, the size difference between the inner diameter of the cylindrical ring 32 and the outer diameter W2 of the ring wall 22 is between 0.05 mm and 0.1 mm, and the number of the ring 3 in this embodiment is plural, but it is not limited thereto.

In addition, the hardness of the ring 3 is greater than that of the ring wall 22. For example, the ring wall 22 is made of copper, and the ring 3 is made of aluminum, iron, or stainless steel, which has a hardness greater than copper.

Third, as shown in step g of FIG. 10 and FIGS. 12 to 13, a heat pipe 1 is provided. The heat pipe 1 has an outer ring wall 11, and the heat dissipation fins 2 are tightly sleeved outside the heat pipe 1 through the through holes 21. Among them, the number of heat pipes 1 in this embodiment is plural, but it is not limited thereto.

In addition, in step g, the ring wall 22 is a cylindrical ring wall 222, the inner diameter S1 of the cylindrical ring wall 222 is smaller than the outer diameter W1 of the heat pipe 1, and the inner diameter S1 of the cylindrical ring wall 222 is equal to the outer diameter W1 of the heat pipe 1. The size difference is between 0.05 mm and 0.1 mm, so that the cylindrical ring wall 222 is tightened to the outer ring wall 11. For example, when the outer diameter W1 of the heat pipe 1 is 8 mm, the inner diameter S1 of the cylindrical ring wall 222 is about 7.9 mm, but this is not a limitation.

Fourth, as shown in step h of Figure 10 and Figure 14, an extrusion jig 100 is provided, and the extrusion jig 100 performs internal pressure operation on the cylindrical ring 32 until the ring wall 22 is compressed and deformed by the ring 3 It is embedded and tightened on the outer ring wall 11.

Further description is as follows. In step h, the ring 3 is sleeved on the ring wall 22 in a tight manner, so that the outer ring wall 11 is squeezed by the ring wall 22 to form a cylindrical ring groove 112, and the cylindrical ring wall 222 is tightened. It is embedded in the cylindrical ring groove 112 so that each ring wall 22 is embedded and tightened to the outer ring wall 11.

In addition, the number of radiating fins 2 in this embodiment is plural. The plurality of radiating fins 2 are sleeved on the heat pipe 1 through the through holes 21 in an overlapping manner. The plurality of convex-shaped lap joints 23 and a plurality of latches 24 inserted between two adjacent convex-shaped lap joints 23 extend outward, so that the plurality of heat dissipation fins 2 are firmly overlapped and stacked together.

Thereby, after step e to step h in FIG. 10, the same structure as the heat dissipation module 10 in FIG. 7 to FIG. 9 can be completed. Therefore, the two manufacturing methods of step a to step d and step e to step h are adopted The heat dissipation module 10 of the present invention can be manufactured.

In summary, the heat dissipation module and its manufacturing method of the present invention have never been seen in similar products and publicly used, and it is industrially usable, novel and progressive, and fully meets the requirements of a patent application. The application is filed in accordance with the Patent Law. Please check carefully and grant the patent for this case to protect the rights of the inventor.

10: Cooling module

1: Heat pipe

11: Outer ring wall

12: top

2: cooling fins

22: Ring Wall

23: Embossed lap joint

24: Tenon

3: ring

Claims (10)

A heat dissipation module includes: a heat pipe with an outer ring wall; a plurality of heat dissipation fins, each of the heat dissipation fins is provided with a through hole and a ring wall formed on the outer periphery of the through hole, and the plurality of heat dissipation fins pass through each of the heat dissipation fins. The perforations are sleeved on the heat pipe in an overlapping manner at intervals; and a plurality of loops are sleeved on each of the ring walls in a tight manner, so that each of the ring walls is embedded and tightened on the outer ring wall. The heat dissipation module according to claim 1, wherein each of the ring walls is a cylindrical ring wall, the outer ring wall is formed with a plurality of cylindrical ring grooves, and each of the cylindrical ring walls is embedded in each The cylindrical ring groove. The heat dissipation module according to claim 1, wherein the outer periphery of each of the heat dissipation fins extends upwardly with a plurality of embossed laps that are inlaid with each other and extends outwardly to be inserted into two adjacent embossed laps For the plurality of tenons between the connecting pieces, the hardness of each ring is greater than the hardness of each ring wall. A method for manufacturing a heat dissipation module includes the steps of: a) providing a heat dissipation fin provided with a through hole and a ring wall formed on the outer periphery of the through hole; b) providing a ring, the ring being a Conical ring ring, the conical ring ring has an upper bottom opening and a lower bottom opening arranged up and down, the inner diameter of the upper bottom opening is smaller than the outer diameter of the ring wall, and the inner diameter of the lower bottom opening is larger than the ring The outer diameter of the wall, the tapered ring is sleeved on the ring wall; c) a heat pipe is provided, the heat pipe has an outer ring wall, and the radiating fins are tightly sleeved on the outside of the heat pipe through the perforation; as well as d) Provide an extrusion jig, which performs a pressing operation on the conical ring, so that the conical ring deforms and is tightly sleeved on the ring wall until the ring wall is The ring is pressed and deformed to be embedded and tightened on the outer ring wall. The method for manufacturing a heat dissipation module according to claim 4, wherein in step c), the annular wall is a cylindrical annular wall, the inner diameter of the cylindrical annular wall is smaller than the outer diameter of the heat pipe, and the cylindrical annular wall The size difference between the inner diameter of the heat pipe and the outer diameter of the heat pipe is between 0.05 mm and 0.1 mm, so that the cylindrical ring wall is tightened to the outer ring wall. The method for manufacturing a heat dissipation module according to claim 5, wherein in step b), the inner diameter of the tapered ring gradually decreases in size from the lower bottom opening to the upper bottom opening, and in step c) the heat pipe has a At the top end, the lower bottom opening is disposed adjacent to the top end compared to the upper bottom opening. The method for manufacturing a heat dissipation module according to claim 6, wherein in step d), the outer ring wall is formed with a cylindrical ring groove, and the cylindrical ring wall is embedded in the cylindrical ring groove in a tight manner. A method for manufacturing a heat dissipation module, the steps include: e) providing a heat dissipation fin provided with a perforation and having a ring wall formed on the outer periphery of the perforation; f) providing a ring, the ring being a A cylindrical ring, the cylindrical ring is tightly sleeved on the outside of the ring wall; g) a heat pipe is provided, the heat pipe has an outer ring wall, and the radiating fins are tightly sleeved through the perforation The outside of the heat pipe; and h) providing an extrusion jig that performs internal pressure operation on the cylindrical ring until the ring wall is pressed and deformed by the ring to be embedded and tightened on the Outer ring wall. The method for manufacturing a heat dissipation module according to claim 8, wherein in step g), the annular wall is a cylindrical annular wall, the inner diameter of the cylindrical annular wall is smaller than the outer diameter of the heat pipe, and the cylindrical annular wall The inner diameter of The size difference of the outer diameter of the heat pipe is between 0.05 mm and 0.1 mm, so that the cylindrical ring wall is tightly bound to the outer ring wall. The method for manufacturing a heat dissipation module according to claim 9, wherein in step h), the outer ring wall is formed with a cylindrical ring groove, and the cylindrical ring wall is embedded in the cylindrical ring groove in a tight manner.

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