CN2762350Y

CN2762350Y - Combined fin

Info

Publication number: CN2762350Y
Application number: CN 03247481
Authority: CN
Inventors: 刘德军
Original assignee: Shunda Computer Factory Co Ltd
Current assignee: Shunda Computer Factory Co Ltd
Priority date: 2003-06-20
Filing date: 2003-06-20
Publication date: 2006-03-01
Anticipated expiration: 2013-06-20

Abstract

The utility model provides a combined radiating fin, which is formed by that a plurality of U-shaped radiating fins are mutually combined. The radiating fins are provided with a main body; both sides of the main body is correspondingly provided with a folding edge; one end of the folding edge close to the main body is provided with a space limiting hole; at least one fastening part is formed by the extendibility of the folding edge on one side remote from the space limiting hole; both sides of one end of the fastening part remote from the space limiting hole are provided with positioning convex edges matching with the space limiting hole; a fastening groove is arranged between the positioning convex edges; the surface of the fastening groove is a bit lower than the surface of the folding edge; the fastening groove is provided with a fastening hole; one end of the fastening groove remote from a main body is provided with a fastening clamp which is fastened with the fastening hole. Each radiating fin of the combined radiating fin can be tightly connected and is difficult to separate. The fastening steadiness is good. The combined radiating fin can obtain larger contacting surface areas with the air, and the radiating effect is good.

Description

The composite type fin

Technical field

The utility model relates generally to a kind of fin, especially interconnects the fin that combines by a plurality of radiating fins.

Background technology

As everyone knows, the heat-conducting effect of copper material is better than aluminium, yet traditional fin is to be made by aluminium mostly, and main cause is the dual consideration of cost and manufacturing technology.Aspect manufacturing technology, the fin of aluminum is to utilize the aluminium extruded type technology to make, and it is easily manufactured, and the production capacity height was so had high occupation rate of market in the past; But along with the requirement of using fin equipment to heat dissipation improves constantly, technical bottleneck has appearred in the aluminium extruded type fin, the fin that uses with computer cpu (CPU) is example, because of the operating frequency of processor of new generation surpasses more than the 1GHz, the heat energy of its generation also rises sharply relatively, thereby improve a lot relatively to the requirement of the heat dissipation of fin, but aluminum thermal fin is limited by the aluminium extruded type technology, on the density that fin is arranged, be subjected to bigger restriction, so can't expand area of dissipation by increasing number of fins.

At above situation, the designer designed the fin that a kind of copper material is made afterwards, as China Patent No. is 02204787.5 disclosed a kind of composite type fin, sees also shown in Figure 1ly, and it is to be interconnected by the radiating fin 7 that a plurality of cross sections are " ㄈ " shape to combine.This radiating fin 7 is to be made by copper sheet, its both sides vertically extend first,

second side

71,72, offer a recess 711,721 respectively at two ends on it, and extending to form a lug 712,722 respectively at these recess 711,721 leading edges, these lugs 712,722 correspond respectively to the recess 711,721 on first,

second side

71,72 of adjacent radiating fin 7; And form outstanding salient point 713,723 with impact style in the relative inner face respectively on these lugs 712,722.

And for example shown in Figure 2, when a plurality of radiating

fins

7,8 one by one during socket, in the recess 811,821 of the adjacent radiating fin 8 of the corresponding respectively insertion of lug 712,722 on first,

second side

71,72 of one radiating fin 7, salient point 713,723 on its lug 712,722 relative inner faces is also by the recess 811,821 on the adjacent radiating fin 8, and by its ora terminalis institute block, and each radiating

fin

7,8 promptly utilize recess 811,821 on it, lug 712,722 and on salient point 713,723 mutual wedge anchorage blocks, and then constitute combination.

But its stable degree of this combination obviously is very weak, as shown in Figure 3, when the fin two ends are pulled by relative direction, the radiating fin 7 one end lugs 712 of stress raiser can break away from the recess 811 of adjacent radiating fin 8, and under the situation that at one end breaks away from, other end lug 722 also can be easy to break away from the recess 821 of adjacent radiating fin 8, separates thereby cause this fin to dismember.

In addition, above-mentioned fin can not effectively increase the surface area size that fin contacts with air in limited space, and therefore, its radiating effect is not fine.

Summary of the invention

At the existing problem of above-described existing technology, the utility model provides a kind of composite type fin, and its radiating fin interconnects closely, has higher snapping steadiness, and can obtain bigger surface area.

The utility model is taked following technical scheme:

This composite type fin is to be interconnected by the radiating fin that some cross sections are ㄈ shape to combine, these radiating fins have a body, these body both sides offer a flanging relatively, this flanging is offering a spacing hole near one of body end, flanging away from this spacing hole it-side extended to form at least one snapping portion, its both sides away from spacing hole one end of this snapping portion offer the location chimb that can cooperate with this spacing hole, have a snapping groove between these location chimbs, this its surface of snapping groove is a little less than surface outside the flanging; Offer a snapping hole on this snapping groove, this snapping groove has a snapping grab, the corresponding fastening with the snapping hole of this snapping grab away from one of body end.

The utility model also can further be taked following technical scheme:

Described two flangings are the parastate setting, and with body in vertical state; Described radiating fin can be copper material and makes, and also can be the red metal material and makes, and described snapping groove is connected by an inclined plane with these location chimbs, and the snapping groove highly is this flanging self thickness a little less than the flanging outer surface.

Therefore, composite type fin by the utility model, when each radiating fin is connected mutually, the snapping hole of its snapping grab and adjacent radiating fin closely cooperates, and the identical reinforcement of the spacing hole of its location chimb and adjacent radiating fin is spacing, each radiating fin connects closely each other, is difficult for breaking away from, and has higher snapping steadiness; Moreover after each radiating fin made up mutually, the buckling parts that interconnects can produce a depression curved surface, and along with the radiating fin quantity of combination increases, like this, this fin can obtain the bigger surface area that contacts with air, has better heat radiating effect.

Description of drawings

Below with reference to the drawings and specific embodiments the utility model is described in further detail, in the accompanying drawing:

Fig. 1 is existing fin stereogram;

Fig. 2 is existing fin combination profile;

Fig. 3 is the action schematic diagram of existing fin when pulled by external force;

Fig. 4 is the radiating fin stereogram of the utility model composite type fin;

Fig. 5 is the stereogram of the utility model composite type fin combination.

Embodiment

See also shown in Figure 4, radiating fin for the utility model composite type fin, this radiating fin 2 can be copper material and makes, especially with red metal material the best, its cross section roughly is " ㄈ " shape structure, and it has a body 20 this radiating fin 2, these body 20 both sides relatively all offer a flanging 21, in present embodiment, this two flanging 21 is the parastate setting, and this flanging 21 and body 20 are in vertical state; This flanging 21 is offering a spacing hole 22 near one of body 20 end, extending to form at least one snapping portion 210 away from one of this spacing hole 22 side at flanging 21, these snapping portion 210 its both sides away from spacing hole 22 1 ends offer and can locate chimb 211 with this spacing hole 22 coincide location, has a snapping groove 212 between these location chimbs 211, these snapping groove 212 its surfaces are a little less than flanging 21 outer surfaces, in present embodiment, this snapping groove 212 is connected by an inclined plane transition with these location chimbs 211, and this snapping groove 212 highly is this flanging 21 self thickness a little less than flanging 21 outer surfaces; Offer a snapping hole 213 at this snapping groove 212, this snapping groove 212 has a snapping grab 214 away from one of body 20 end, this snapping grab 214 can with snapping hole 213 corresponding fastenings.

See also shown in Figure 5, be the utility model composite type fin, it is interconnected by some radiating fins and combines, during combination, first radiating fin, 3 its location chimbs 211 are placed in the spacing hole 22 of second radiating fin 4, limit the position of first radiating fin 3 by coincideing mutually, simultaneously, make first radiating fin, 3 its snapping grabs 214 place in the snapping hole 213 of the second adjacent radiating fin 4, and closely fasten with it.

According to the above, adopt the fin of the utility model, because when each radiating fin is connected mutually, the snapping hole of its snapping grab and adjacent radiating fin closely cooperates, and the identical reinforcement of the spacing hole of its location chimb and adjacent radiating fin is spacing, and therefore, each radiating fin connects closely each other, be difficult for breaking away from, have higher snapping steadiness; Moreover, because after each radiating fin made up mutually, the buckling parts that interconnects can produce a depression curved surface, along with the radiating fin quantity of combination increases, this curved surface is long-pending considerable, so, this fin can obtain the bigger surface area that contacts with air, has better heat radiating effect.

The above-mentioned the drawings and the specific embodiments that disclose only are a preferred embodiment of the present utility model, are not for limiting practical range of the present utility model; Those skilled in the art are in the technical characterictic scheme of setting forth according to the utility model, and other equivalence of being done changes or modifies, and all should be encompassed in the claim scope of the utility model.

Claims

1, a kind of composite type fin, it is to be interconnected by the radiating fin that the cross section is ㄈ shape to combine, these radiating fins have a body, these body both sides offer a flanging relatively, it is characterized in that: this flanging is offering a spacing hole near one of body end, extending to form at least one snapping portion away from one of this spacing hole side at flanging, its both sides away from spacing hole one end of this snapping portion offer the location chimb that can cooperate with this spacing hole, have a snapping groove between these location chimbs, this its surface of snapping groove is a little less than surface outside the flanging; Offer a snapping hole on this snapping groove, this snapping groove has a snapping grab, the corresponding fastening with the snapping hole of this snapping grab away from one of body end.

According to the described composite type fin of claim 1, it is characterized in that 2, described two flangings are the parastate setting, and these flangings and body are in vertical state.

According to claim 1 or 2 described composite type fin, it is characterized in that 3, described radiating fin is that copper material is made.

4, according to claim 1 or 2 described composite type fin, it is characterized in that described radiating fin is made for the red metal material.

According to claim 1 or 2 described composite type fin, it is characterized in that 5, described snapping groove is connected by an inclined plane with these location chimbs.

According to claim 1 or 2 described composite type fin, it is characterized in that 6, described snapping groove highly is this flanging self thickness a little less than the flanging outer surface.