CN1385261A - Heat pipe type heat sink and combination method thereof - Google Patents

Abstract

A heat pipe type heat sink and its assembly method, comprising a plurality of heat sinks arranged side by side, a heat pipe and an adhesive; wherein the heat sink is provided with perforations at corresponding positions, and openings are provided at the edges of the perforations, and the heat pipes are inserted into the perforations, and then the adhesive is filled through the openings to join the gaps between the heat pipes and the perforations; thereby, a circular surface contact can be formed between the perforations and the heat pipes, and the best heat conduction effect can be achieved.

Description

Heat pipe type heat sink and combination method thereof

The invention relates to a heat pipe cooling fin design and its combination method, especially a heat pipe cooling fin which forms a circumferential surface contact with the heat pipe through a perforation and achieves the best heat conduction effect and its combination method.

In response to the vigorous development of science and technology, the operating temperature of various electronic components such as chips and microprocessor chips is increasing day by day. Therefore, the heat dissipation method of heat exchange components has formed an indispensable strain mode.

Traditionally, heat exchanging elements are installed using an aluminum extruded heat sink, which is generally made of a single piece of aluminum. However, the manufacturing cost of this aluminum extruded heat sink is high, wastes materials, and tends to be expensive relative to the selling price. Therefore, a heat pipe type heat sink has appeared at present, intending to replace the traditional aluminum extruded heat sink with the advantage of a lower price. This kind of heat pipe heat sink, as shown in Figure 1 and Figure 2, will be referred to as conventional technology for description below:

Please refer to FIG. 1 and FIG. 2 , which are perspective views and side sectional views of conventional heat pipe heat sinks. as the picture shows:

The conventional heat pipe heat sink is composed of heat sink 1 and heat pipe 2, wherein:

The heat sink 1 is configured as a plate-shaped structure, and its two opposite side edges are bent in the same direction to form a flange 11, and two convex tubes 12 are punched out on the heat sink 1, and the convex tubes 12 have a cross-sectional size , and a tapered pipe body that gradually decreases from the root to each free end;

The heat pipe 2 is a long circular rod body, and the heat pipe 2 is inserted in the convex pipe 12 of the heat sink 1 through an interference fit;

With the above-mentioned structural design, two heat pipes 2 are used to connect several heat sinks 1 in series to form a heat pipe heat sink, and the circular point and line contacts between the convex pipes 12 and the heat pipes 2 achieve the effect of heat dissipation.

However, the above-mentioned conventional technology utilizes the predetermined combination structure of the heat pipe 2 and a plurality of cooling fins 1, but has the following deficiencies:

(1) The heat pipe 2 and some cooling fins 1 use interference fit, that is, a thicker rod body is used to forcefully squeeze a hole with a smaller opening, so as to achieve the effect of close contact, but the opening is forced to widen and can slide On the heat pipe 2, it can be seen that several heat sinks 1 cannot be stabilized with one heat pipe 2, so the conventional heat pipe type heat sink needs more than two heat pipes 2 to stabilize the heat sink 1, and the cost is also high.

(2) The heat pipe 2 and some cooling fins 1 utilize interference fit. Although they are closely combined, they cannot be completely contacted. They can only be contacted with circular points and lines. For those who want to conduct heat energy from the heat pipe 2 to The cooling fin 1 is used to dissipate heat, but its effect is not great at all.

(3) The heat pipe 2 and the plurality of heat sinks 1 use interference fit. During the process of plugging, it cannot be completed by manpower, and a special machine is required to achieve the purpose of piercing.

In view of the shortcomings of the above-mentioned conventional technology, the inventor has exhausted his brains to study and overcome them, and based on his accumulated experience in this industry, he has developed a heat pipe heat sink and a combination of heat sinks and heat pipes. The method is to open an opening on the edge of the perforation of the heat sink, and fill the opening of the edge of the perforation through which the heat pipe is pierced with adhesive, so that a circumferential surface contact is formed between the perforation and the heat pipe, and the best heat conduction effect is achieved.

The main purpose of the present invention is to provide a heat pipe cooling fin, whereby openings are opened on the perforated edge of the heat sink, and an adhesive is filled in the opening of the perforated edge of the heat pipe, so that the perforated hole and the heat pipe form a circular shape. Surface contact, and achieve the best heat transfer effect.

Another object of the present invention is to invent a method for assembling the aforementioned heat pipe cooling fins, by combining the aforementioned heat pipe cooling fins.

In order to achieve the above object, the present invention is achieved in the following way: a heat pipe type heat sink, which includes: a plurality of heat sinks arranged side by side, each heat sink is provided with a perforation at the corresponding position, and the edge of the perforation is provided with an opening; Placed in the perforations of the aforementioned heat sinks; the adhesive is used to fill the gap between the heat pipes and the perforations;

According to the aforementioned structure, a combination method is applied to make it a heat pipe heat sink: a combination method of a heat pipe type heat sink:

Provide heat pipes; provide several heat sinks arranged side by side, each heat sink is preset with a perforation for the aforementioned heat pipe to pass through, and the edge of the perforation is reserved for opening;

The filling step is to fill the openings of the heat sinks with an adhesive;

heating step, heating the aforementioned adhesive to the melting point, so that the adhesive fills the gap between the heat pipe and the perforation;

In the cooling step, after the adhesive is cooled, a heat pipe-type heat sink is formed in which the heat pipe is tightly bonded to the edge of the opening.

In order to make your examining committee members understand the purpose, characteristics and effects of the present invention, the following specific embodiments are hereby combined with the accompanying drawings to describe the present invention in detail, as follows:

Description of drawings:

FIG. 1 is a perspective view of a conventional heat pipe heat sink.

Fig. 2 is a side sectional view of a conventional heat pipe heat sink.

FIG. 3 is a first perspective view of the heat pipe heat sink of the present invention.

Fig. 4 is a side sectional view 1 of the heat pipe heat sink of the present invention.

FIG. 5 is the second perspective view of the heat pipe heat sink of the present invention.

FIG. 6 is the second side sectional view of the heat pipe heat sink of the present invention.

Brief description of the figure number:

1...Heat sink 11..Folding edge

12..Convex tube 2...Heat pipe

3...Heat sink 31..Perforation

32..Opening 4...Heat pipe

5...Adhesive

Please refer to FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , which are perspective view 1, side sectional view 1, perspective view 2, and side sectional view 2 of the heat pipe heat sink of the present invention. As shown in the figure: the heat pipe type heat sink includes several heat sinks 3 arranged side by side, heat pipes 4 and adhesive 5, among which:

A plurality of cooling fins 3 arranged side by side are provided with a circular perforation 31 at the corresponding position of each cooling fin 3, and a circular opening 32 is provided on the edge of the circular perforation 31; (the opening 32 that this perforation 31 and its edge offer can be more than two on the heat sink 3, and its shape is not limited).

The heat pipe 4 (HEAT PIPE) is placed in the circular perforation 31 of the aforementioned heat sinks 3;

Adhesive agent 5 is tin bar or solder paste, which is inserted or poured through opening 32R to fill the gap between heat pipe 4 and circular perforation 31;

The heat pipe type radiator of the present invention is achieved by the following combination method, which comprises the following steps:

Provide heat pipe 4: provide several heat sinks 3 arranged side by side, each heat sink 3 is preset with a circular perforation 31 for the aforementioned heat pipe 4 to penetrate, and the edge of the circular perforation 31 is reserved with a circular opening 32; The opening 32 can also be V-shaped, which is located on the top of the heat sink 3 and runs through the top edge of the heat sink 3; , and does not limit its shape)

Filling step: filling the opening 32 of each cooling fin 3 with adhesive 5;

Heating step: heating the aforementioned adhesive 5 to the melting point, so that the adhesive 5 fills the gap between the heat pipe 4 and the perforation 31;

Cooling step: after the adhesive 5 is cooled, a heat pipe type heat sink is formed in which the heat pipe 4 is tightly bonded to the edge of the opening 32 .

Cooperating with the aforementioned combination method, the circular opening 32 or the V-shaped opening 32 on the edge of the perforation 31 can be inserted with the adhesive 5 such as tin bars or pouring solder paste, and then use a heat gun to blow hot air toward the adhesive 5, or Send it into the furnace to let the adhesive 5 melt, and fill the gap between the perforation 31 and the heat pipe 3, and then assemble a tightly connected heat pipe heat sink.

By the above-mentioned special combination method and structure of the present invention, the following features are formed:

(1) The heat pipe 4 and some cooling fins 3 are matched by clearance, that is, a rod body with a thinner hole is placed in a wider hole to achieve the effect of the gap, and the gap is filled with a liquid to make the heat pipe 4 can be combined on several heat sinks, and its cost can also be greatly reduced, increasing its own competitiveness.

(2) The heat pipe 4 and some cooling fins 3 are matched by gaps, and the gaps are filled in a liquid state, so as to achieve complete close contact, and can be in contact with the surface of the circumference, which helps to quickly place the heat pipe 4 The heat energy is conducted to the heat sink 3 to dissipate heat, and its efficacy is maximized.

(3) The heat pipe 4 and some cooling fins 3 are matched by using clearances. The perforations 31 and openings 32 provided by the heat pipe 4 can be easily inserted into the heat pipe 4, and adhesives 5 such as strips or pastes can be placed, and then it can be installed with a heat gun. Blowing hot air toward the adhesive 5 or sending it into the furnace to melt the adhesive 5 and fill the gap between the perforation 31 and the heat pipe 3 can all be done easily by manpower, greatly reducing the cost of equipment.

Although the present invention is disclosed above with a preferred embodiment, it is not intended to limit the implementation scope of the present invention. Anyone who is familiar with this skill can make some changes and modifications without departing from the spirit and scope of the present invention, that is, all equivalent changes and modifications made according to the present invention should be covered by the patent scope of the present invention. The definition should be based on the scope of the patent application.

Claims (22)

1. hot pipe type radiation fin is to comprise:

The fin that plural pieces is arranged side by side, each fin corresponding position is provided with perforation, and perforated edge is provided with opening;

Heat pipe is the perforation that is placed through aforementioned each fin;

Solid is to fill the space that is engaged between heat pipe and perforation.

2. hot pipe type radiation fin as claimed in claim 1; It is characterized in that the perforation of this fin is circular.

3. hot pipe type radiation fin as claimed in claim 1; It is characterized in that the perforation of this fin is two.

4. hot pipe type radiation fin as claimed in claim 1; It is characterized in that the opening of this fin is circular.

5. hot pipe type radiation fin as claimed in claim 1; It is characterized in that the opening of this fin is a V-shape.

6. hot pipe type radiation fin as claimed in claim 1; It is characterized in that this opening system is positioned at the top of fin, and runs through the top margin of fin.

7. hot pipe type radiation fin as claimed in claim 1; It is characterized in that the opening of this fin is two.

8. hot pipe type radiation fin as claimed in claim 1; It is characterized in that this heat pipe system is clearance and cooperates less than the perforation of fin.

9. hot pipe type radiation fin as claimed in claim 1; It is characterized in that this solid is a tin bar.

10. hot pipe type radiation fin as claimed in claim 1; It is characterized in that this solid is a tin cream.

11. the combined method of a hot pipe type radiation fin is to comprise the following step:

Heat pipe is provided; Several pieces fin that is arranged side by side are provided, and each fin corresponding position is preset with perforation and places for aforementioned heat pipe, and perforated edge system is reserved with opening;

Filling step is filled solid in the opening part of each fin;

Heating steps is heated to fusing point to aforementioned solid, make solid fill up heat pipe and the perforation between the gap;

Cooling step, treat solid cooling after, make the hot pipe type radiation fin of heat pipe and edge of opening fluid-tight engagement.

12. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that the perforation of this fin is circular.

13. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that the perforation of this fin is two.

14. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that the opening of this fin is circular.

15. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that the opening of this fin is a V-shape.

16. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that the opening of this fin is two.

17. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that this opening system is offered towards perforation by the fin top margin.

18. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that this heat pipe system is clearance and cooperates less than the perforation of fin.

19. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that this solid is a tin bar, in order to be placed through the opening of fin.

20. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that this solid is a tin cream, irritate opening in fin in order to pouring.

21. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that this heating steps is to adopt to blow hot blast with heat gun towards opening part and reached.

22. the combined method of hot pipe type radiation fin as claimed in claim 11; It is characterized in that this heating steps is to adopt to be arranged at heating in the stove and accessory to be reached.

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