CN2627650Y - Heat dissipation fin structure with diversion function - Google Patents

Abstract

A heat radiation fin structure with flow guiding function is prepared as setting multiple metal fins on body, setting multiple arc-shaped flow guiding sheets on body at intervals, setting multiple flow guiding sheets on body symmetrically, setting multiple flow guiding sheets on body in sequence from inside to outside and using multiple flow guiding sheets to guide air flow to be discharged out quickly when fan is driven to blow cold air to multiple metal fins for obtaining better heat radiation efficiency.

Description

Heat dissipation fin structure with diversion function

technical field

The utility model relates to a heat dissipation fin structure with a flow guiding function, especially a heat dissipation fin structure suitable for folding heat dissipation fins, which can guide airflow to be quickly discharged outwards and has better heat dissipation efficiency. .

Background technique

Commonly used cooling fins are aluminum extrusion type, die-casting type and folding type. The manufacturing of aluminum extrusion type and die-casting type cooling fins is limited by the machining capacity, and their density (total heat dissipation area per unit volume) is limited. Therefore, for heating components with higher and higher calorific value, the volume or weight will increase accordingly, and the folded heat dissipation fins can have a higher density, so there are gradually replacing aluminum extrusion and die-cast heat dissipation fins. trend.

Please refer to FIG. 1 , which is a known folded heat dissipation fin 10 , which stamps a plurality of metal fins 11 into predetermined dimensions by mechanical stamping. The metal fins 11 are made of copper or aluminum with good thermal conductivity. Made of metal material, the metal fins 11 each have a main body 12, the lower side of the main body 12 is connected with a folded edge 13, the main body 12 is also provided with a connecting structure 14, and the connecting structure 14 is composed of a hook 15 and a slot 16, so that the above-mentioned multiple metal fins 11 can be interlocked and stacked by using the hooks 15 and the slots 16, thereby forming a heat dissipation fin 10 of a certain volume. Then the plurality of metal fins 11 can be bonded to a heat conduction block (figure omitted) by means of gluing or welding by means of the folded edge 13 on the lower side of the body 12, so that the heat conduction block can be attached to the surface of the heating element for use. to assist in heat dissipation. In addition, a fan (not shown) is arranged above the heat dissipation fins 10 . When the fan is driven, it can blow the cold air around to the metal fins 11 to assist the heat dissipation fins 10 to dissipate heat.

The above-mentioned known heat dissipation fins 10, when the airflow driven by the fan flows in, because the hot gas cannot be discharged quickly, the hot gas is easy to stagnate, and the metal fins 11 cannot dissipate heat normally, so that the heat dissipation efficiency is greatly reduced, and it is difficult to To achieve the expected cooling effect.

It can be seen from the above that the above-mentioned known cooling fin structure obviously has inconvenience and defects in actual use, and needs to be improved.

Therefore, the utility model proposes a heat-dissipating fin structure with a flow-guiding function that is reasonably designed and can effectively improve the above-mentioned defects.

Utility model content

The main purpose of this utility model is to provide a heat dissipation fin structure with a flow guiding function, which has arc-shaped flow guide fins, and the pressure difference is caused by the special arrangement and shape of the flow guide fins to form a guided heat dissipation The airflow guides the airflow to be quickly discharged outwards, so that the heat dissipation fins can have better heat dissipation efficiency.

In order to achieve the above purpose, the utility model provides a heat dissipation fin structure with a flow guiding function, the heat dissipation fin is composed of a plurality of metal fins, each of the plurality of metal fins has a body, and the body has a A plurality of arc-shaped deflectors are arranged at intervals to guide the airflow to be discharged quickly.

The above-mentioned baffles are integrally formed by the main body, and are arranged on the main body at intervals of left and right symmetry. Moreover, the deflector vanes increase in height sequentially from the inside to the outside.

The lower side of the body of the metal fin is connected with a folded edge, and the plurality of metal fins are joined to a heat conduction block through the folded edge at the lower side of the body.

The body of the above-mentioned metal fin is provided with a connection structure, the connection structure has a first embedding column and a second embedding column integrally formed by the body, and the inside of the first embedding column and the second embedding column is hollow, The first embedding column is tightly fitted and embedded in the second embedding column of another adjacent metal fin, so that the above-mentioned multiple metal fins are embedded and stacked by using the connection structure to form heat dissipation fins.

The outer diameter of the first embedding column is smaller than the outer diameter of the second embedding column, so that a stepped stopper is formed between the first embedding column and the second embedding column, and the metal fin and the metal A constant spacing is maintained between the fins.

The beneficial effect of the utility model is that: by using the metal fin structure, the airflow can be guided to be quickly discharged outwards, and better heat dissipation efficiency can be achieved. It also saves labor and time in assembly, and the assembly operation is simple and easy. Dramatically reduce costs.

In order to further understand the features and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the attached drawings are only for reference and illustration, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a known cooling fin structure;

Fig. 2 is a three-dimensional exploded view of the utility model;

Fig. 3 is the three-dimensional assembled figure of the utility model;

Fig. 4 is a sectional view of the utility model;

Fig. 5 is a side view of the utility model;

Fig. 6 is a cross-sectional view of the utility model in use.

Wherein, the reference signs are explained as follows:

10 cooling fins

11 metal fins 12 body 13 folded edge

14 link structure 15 hooks 16 slots

20 cooling fins

21 metal fins 22 body 23 folded edge

24 Connection structure 25 The first embedded column 26 The second embedded column

27 Stopping part 28 Baffle

30 thermal block

40 heating components

50 fans

Detailed ways

Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5. The utility model provides a heat dissipation fin structure with a flow guiding function. The heat dissipation fin 20 is punched with a plurality of metal fins 21 by mechanical stamping. The metal fins 21 are made of a metal material with good thermal conductivity such as copper or aluminum. Each of the plurality of metal fins 21 has a body 22, and a folded edge 23 is connected to the lower side of the body 22. The folded edge 23 is perpendicular to the main body 22; because the above-mentioned heat dissipation fins are roughly the same as the known structure and are not within the scope of the utility model patent application, so no further description is given.

The body 22 of the metal fin 21 is provided with one or more connection structures 24 , so that the above-mentioned plurality of metal fins 21 can be connected and stacked by the connection structure 24 to form a heat dissipation fin 20 with a certain volume. The number of the connection structures 24 can be appropriately increased or decreased as required. In this embodiment, four connection structures 24 are respectively provided on the body 22 of each metal fin 21 . The connection structure 24 has a first embedding column 25 and a second embedding column 26 integrally formed by the body 22, the first embedding column 25 is connected to the front end of the second embedding column 26, the first embedding column The column 25 and the second embedding column 26 protrude from one side (front side) of the body 22, the first embedding column 25 and the second embedding column 26 are hollow inside, and the second embedding column 26 The rear end forms an open shape, and the outer diameter of the first embedding column 25 is smaller than the outer diameter of the second embedding column 26, so that a stepped gap is formed between the first embedding column 25 and the second embedding column 26. Stopping portion 27, and the outer diameter of the first embedding post 25 is larger than the inner diameter of the second embedding post 26, so that the first embedding post 25 of the metal fin 21 can be tightly fitted and embedded in the adjacent front side In the second embedding column 26 of another metal fin 21 that is connected, the above-mentioned multiple metal fins 21 can be embedded and stacked by using the connecting structure 24 to form a heat dissipation fin 20 of a certain volume.

The body 22 of the metal fin 21 is additionally provided with a plurality of flow guide fins 28, the plurality of flow guide fins 28 are integrally formed by the body 22, and the plurality of flow guide fins 28 are symmetrically arranged on the body at left and right intervals. 22, the above-mentioned multiple guide fins 28 are arc-shaped, and the above-mentioned multiple guide fins 28 are sequentially increased in height from the inside to the outside, that is, the guide fins 28 located on the innermost side of the heat dissipation fins 20 are located at a lower height, located at The outermost air guide fins 28 of the heat dissipation fins 20 are located at a higher height; through the above composition, the heat dissipation fin structure with air conduction function of the present invention can be formed.

As shown in Figure 6, the heat dissipation fin 20 of the present invention utilizes the folded edge 23 on the lower side of the body 22 of the metal fin 21 to be bonded to a heat conduction block 30 by gluing or welding, and the heat conduction block 30 is also It is made of metal material with good thermal conductivity such as copper or aluminum, so that the heat conducting block 30 is attached on the surface of the heating component 40 , and the heat dissipation fin 20 is used to assist the heating component 40 to dissipate heat. In addition, a fan 50 is arranged above the heat dissipation fins 20 to assist the heat-generating component 40 to dissipate heat. When the fan 50 is driven, it can blow the surrounding cold air to the above-mentioned plurality of metal fins 21 to assist the heat dissipation. The heat dissipation fins 20 dissipate heat.

The utility model is a folded heat dissipation fin, which has a high-density heat dissipation area, and the metal fins 21 of the heat dissipation fins 20 are continuously embedded and stacked by a connecting structure 24 to form a certain volume of heat dissipation fins 20, and then joined together with the heat conduction fins. On the block 30, there is no need to join the metal fins 21 to the heat conduction block 30 one by one, which saves labor and time in assembly, and greatly reduces the cost.

The connection structure 24 of the present utility model is composed of the first embedding post 25 and the second embedding post 26 stamped and formed on the body 22. It has a simple structure and is easy to form. The post 25 and the second post 26 are embedded and connected to each other, and can be combined quickly, and the bonding strength is better, it is not easy to be loosened or separated, and the assembly operation is simple and easy. In addition, when the above-mentioned plurality of metal fins 21 are connected by the first embedding post 25 and the second embedding post 26, the stop portion 27 can be used to provide a blocking and positioning function, so that the metal fins 21 and the metal fins 21 can easily maintain a fixed distance, and the assembly is simple and easy.

The utility model is mainly provided with an arc-shaped guide vane 28 on the body 22 of the metal fin 21, and the above-mentioned plurality of guide vanes 28 are arranged in increasing order from the inside to the outside. The special arrangement and shape cause the pressure difference to guide the heat dissipation airflow, and make full use of the deflector 28 to make the air flow out quickly, so that the heat dissipation fins 20 can have better heat dissipation efficiency to achieve the desired cooling effect.

The above are only preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. For those of ordinary skill in the field, the equivalent structural changes made by using the specification and drawings of the utility model , should be included in the scope of the present utility model.

Claims (7)

1. heat radiation fin structure with diversion function, described radiating fin is made up of a plurality of metal fins, and above-mentioned a plurality of metal fins respectively have a body, it is characterized in that, are interval with a plurality of curved flow deflectors on the described body.

2. the heat radiation fin structure with diversion function as claimed in claim 1 is characterized in that, described flow deflector is by described body by integral forming.

3. the heat radiation fin structure with diversion function as claimed in claim 1 is characterized in that, described flow deflector is that left and right symmetry is arranged at intervals on the described body.

4. the heat radiation fin structure with diversion function as claimed in claim 1 is characterized in that, described flow deflector is to increase progressively height from inside to outside in regular turn.

5. the heat radiation fin structure with diversion function as claimed in claim 1 is characterized in that, the body downside of described metal fins is connected with flanging, and described a plurality of metal fins are engaged on the heat-conducting block by the flanging of described body downside.

6. the heat radiation fin structure with diversion function as claimed in claim 1, it is characterized in that, the body of described metal fins is provided with connecting structure, described connecting structure has by the integrated first interlocking post of body and the second interlocking post, described first interlocking post and the inner hollow form that forms of the described second interlocking post, the first interlocking post tight fit of described metal fins is embedded in the second interlocking post of another adjacent metal fins, and described a plurality of metal fins interlockings are stacked into described radiating fin.

7. the heat radiation fin structure with diversion function as claimed in claim 6, it is characterized in that, the external diameter of the described first interlocking post is less than the external diameter of the described second interlocking post, form stair-stepping stop section between described first interlocking post and the described second interlocking post, keep constant spacing between described metal fins and the metal fins.

Images