CN204031697U - Radiator - Google Patents

Abstract

The utility model provides a radiator, which comprises a bottom plate and a plurality of fins erected on the bottom plate, and the fins include a flat plate part (105) and a connecting part (110). The connection part (110) includes a connection part (106) provided to protrude from the flat part (105), a hole part (112) adjacent to the root part (106a) of the connection part (106), and a hole part (112) provided to protrude from the flat part (105) Protruding positioning part (108). The connecting portion (106) is engaged with the hole portion (112) of the adjacent fin, and the positioning portion (108) is in contact with the base B of the positioning portion (108) of the adjacent fin. The radiator is easy to manufacture and has excellent cooling performance.

Description

heat sink

technical field

The utility model relates to a radiator.

Background technique

It is desirable to arrange fins at a high density in a heat sink to improve heat dissipation. For example, conventionally, there is a heat sink equipped with a plurality of fins made of a thin plate.

For details, please refer to Utility Model Document 1: Japanese Utility Model Registration No. 3122252.

However, in the heat sink described in Utility Model Document 1, the upper and lower sides of the heat sink have horizontal folded edges, and many materials are required to manufacture the heat sink. In addition, in order to engage the horizontal engaging plate in the groove, the joint edge between the engaging bottom surface and the protruding engaging handle becomes narrow, and parts may fall off. Moreover, the heating surface is composed of folded edges of a plurality of fins, which has poor contact with cooling elements, etc., and cannot be sufficiently cooled.

Utility model content

The utility model considers the above problems, and aims to provide a heat sink that is easy to manufacture and has excellent cooling performance.

In order to solve the above problems, the radiator of the present invention includes a base plate and a plurality of fins (fins) vertically arranged on the base plate, and the fins include a flat plate portion and a connecting portion, and the connecting portion includes a connecting portion protruding from the flat plate portion, a hole adjacent to the root of the connecting portion, and a positioning portion provided to protrude from the flat plate, the connecting portion is engaged with the hole of the adjacent fin, The positioning portion is in contact with the base of the positioning portion of the adjacent fin.

The connecting portion can be divided into two parts that are line-symmetrical to the plane perpendicular to the bottom plate,

The positioning portion is configured to be parallel to the bottom plate.

The bottom plate includes grooves for fitting the fins, and one fin may have two or more engagements between the connecting portion and the hole portion.

One fin may have three or more engagements between the connecting portion and the hole.

The beneficial effect of the utility model is that it can provide a radiator that is easy to manufacture and has excellent cooling performance.

Description of drawings

Fig. 1 is a perspective view of the shape of a radiator according to an embodiment of the present invention;

Fig. 2 is a side view of the fins of the radiator of the present invention and the bottom plate provided with grooves for fitting the fins;

Figure 3(a) is a plan view of the shape of the fin before the bending process;

Figure 3(b) is a side view of the fin shape after bending;

Figure 3(c) is a plan view of the shape of the fin after bending;

Fig. 4 (a) is the perspective view of the connecting part before bending processing, Fig. 4 (b) is the perspective view of the connecting part in bending processing, Fig. 4 (c) is the perspective view of the connecting part after bending processing;

Fig. 5 (a) is a sectional view of the cross-sectional shape of the fin including the A-A' line shown in Fig. 4 (a) before the bending process;

Fig. 5(b) is a perspective cross-sectional view of the shape of the fin in bending process when viewed from the side;

Fig. 5(c) is a perspective cross-sectional view of the shape of the bent fin viewed from the side;

Fig. 6 is a perspective view of the state when connecting multiple fins of the radiator of the embodiment of the present invention;

Fig. 7 is a side view of the state when connecting a plurality of fins of the radiator of the embodiment of the present invention;

Fig. 8 is an enlarged side view of the shape of a part of the fin of the present invention.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a schematic outline of a radiator 100 of the present invention. As shown in FIG. 1 , the comb-shaped heat sink 100 includes a flat bottom plate 102 and a plurality of thin-plate-shaped fins 104 . The heat sink 100 is configured as a heating element (not shown) such as various electronic components such as CPU, integrated circuits, semiconductor elements, electronic equipment, and other various electrical equipment that can be cooled by a cooling medium such as water or antifreeze solution. In FIG. 1 , a heating element (not shown) is provided under a base plate 102 , and a plurality of fins 104 are erected side by side on the upper surface of the base plate. As shown in FIG. 2 , each of the plurality of fins 104 is erected, and is respectively fitted into grooves 114 provided on the upper surface of the bottom plate 102 . Each of the plurality of fins 104 is erected and fitted into the grooves 114 respectively. Preferably, the fins 104 can be arranged side by side at equal intervals, so that the number of positioning parts 108 required for arranging the fins 104 side by side can be reduced (described later. ) and the number of connecting pieces 106 (described later), the manufacturing time of the heat sink 100 can be further shortened. The bottom plate 102 and each fin 104 are formed of a material with high thermal conductivity such as copper, stainless steel, or aluminum.

As shown in Figure 3 (a)-(c) and Figure 4 (a)-(c), the fin 104 includes a flat plate portion 105 and a plurality of connecting portions 110, and each connecting portion 110 includes a connecting piece 106 (connecting portion), The positioning portion 108 (positioning portion), and the hole portion 112 . The connecting portion 110 is formed by punching a part of the flat plate portion 105 and bending it. In the embodiment of the present invention, the embodiment that one fin 104 has 4 connecting parts is described, but not limited thereto, the connecting part can be 1 or 2, and the number of connecting parts can also be more than 3. If the number of connecting parts is more than three, the thermal conductivity between adjacent fins can be improved as will be described later.

FIG. 3( a ) is a plan view of the shape of the fin 104 before bending. As shown in FIG. 3( a ), the fin 104 before bending includes a flat plate portion 105 and a connection portion 110 in which a part of the flat plate portion 105 is perforated (perforated). As a punching method for providing the flat plate portion 105 of the connection portion 110 , for example, punching or the like is used.

FIG. 3( b ) is a side view showing the outline of the shape of the fin 104 after bending. As shown in FIG. 3( b ), the connecting portion 110 includes a connecting piece 106 and a positioning portion 108 . FIG. 3( c ) is a plan view showing an outline of the shape of the fin 104 after bending. As shown in FIG. 3( c ), the fin 104 includes a flat plate portion 105 and a plurality of bent connecting portions 110 .

Hereinafter, a method of forming the bent fin 104 will be described using FIGS. 4( a )-( c ) and FIGS. 5( a )-( c ). For example, die bonding using a die or the like is used as a bending processing method for the fin 104 .

FIG. 4( a ) is a perspective view of the connecting portion 110 of the fin 104 before bending. Fig. 5(a) is a cross-sectional view of the A-A' cross section of the connecting portion 110 shown in Fig. 4(a) of the fin 104 before the bending process. FIG. 4( b ) is a perspective view of the connecting portion 110 during the bending process. FIG. 5( b ) is a perspective cross-sectional view of the connection portion 110 of the fin 104 during the bending process. FIG. 4( c ) is a perspective view of the connection portion 110 of the fin 104 after bending. FIG. 5( c ) is a perspective cross-sectional view of the connection portion 110 of the fin 104 after bending.

First, by following F1 in FIG. 4(a) and FIG. It is bent and cut from the flat plate portion 105 to form a positioning portion 108 protruding from the flat plate portion 105 ( FIGS. 4( b )-( c ), FIGS. 5( b )-( c )). Here, the positioning portion 108 after the bending process is made of the same material as the portion 108' before the bending process. The "approximately right angle" in this specification includes not only a right angle, but also an embodiment that has the same or substantially the same effect as the embodiment that the bent shape is a right angle, as shown in Figure 4 (b)-(c), Figure 5 (b) )-(c), the bent portion may have R (curved portion).

In addition, by following F2 in Fig. 4(a) and Fig. 5(a), the position 106' of the tongue-shaped part is bent at approximately right angles in the direction of arrow Y2 in Fig. 4(a) and Fig. 5(a) , and then along F3 in Fig. 4(b) and Fig. 5(b), the part 106b' is bent at approximately right angles in the direction of arrow Y3 in Fig. 4(b) and Fig. 5(b), as shown in Fig. 4(c) As shown in FIG. 5( c ), the flat plate portion 105 is cut to form a connecting piece 106 protruding from the flat plate portion 105 . The connecting piece 106 includes a base portion 106a (root portion) and a front end bent portion 106b. The bent base portion 106a and the pre-bending portion 106a', and the bent front end portion 106b and the pre-bending portion 106b' are made of the same material, respectively. In addition, as shown in FIG. 4( c ), the connecting portion 110 has hole portions 112 adjacent to the base portion 106 a on both sides of the base portion 106 a. As shown in Figure 4 (c), the connecting sheet 106 is divided into two parts that are line-symmetrical by a plane perpendicular to the base plate 102 (in Figure 4 (c), a plane that includes the dashed line CC' and the dashed line DD'), The positioning portion 108 is substantially parallel to the bottom plate 102 . By dividing the connecting piece 106 into two parts, when a force in the direction of separation is applied to the arranged fins 104, the connecting piece 106 can support the connecting part 110 at two places divided into two parts, thereby enabling more stable arrangement of the fins. 104. "Approximately parallel" in this specification includes not only parallel, but also angles close to parallel within the range that can achieve the same effect as the parallel embodiment. Through the above bending process, the process of the connection portion 110 of the fin 104 is completed.

Hereinafter, an embodiment of connection between a plurality of fins 104 in the heat sink 100 will be described using FIGS. 6 , 7 and 8 .

FIG. 6 is a perspective view of a state in which a plurality of fins 104 of the heat sink 100 are connected. In addition, FIG. 7 is a side view of a state in which a plurality of fins 104 of the heat sink 100 are connected. FIG. 8 is a schematic enlarged side view of a part of the fin 104 for explaining the position of the positioning portion 108 and the base B of the positioning portion 108 . As shown in FIG. 8 , the position of the root portion B is at and near where the positioning portion 108 is cut from the flat plate portion 105 . In FIG. 7 , relatively darker colors represent positioning parts and connecting pieces, and relatively lighter colors represent flat plate parts and hole parts of fins. As shown in FIGS. 6 and 7 , the front end portion of the positioning portion 108A of the fin 104A is in contact with the root portion B of the positioning portion 108B of the adjacent fin 104B. In addition, the front end bent portion 106bA of the connecting piece 106A of the fin 104A is engaged with the hole portion 112B of the adjacent fin 104B. Similarly, the front end portion of the positioning portion 108B of the fin 104B is in contact with the root portion B of the positioning portion 108C of the adjacent fin 104C. In addition, the front end bent portion 106bB of the connecting piece 106B of the fin 104B is engaged with the hole portion 112C of the adjacent fin 104C. Furthermore, the tip portion of the positioning portion 108C of the fin 104C is in contact with the base portion B of the positioning portion 108D of the adjacent fin 104D. Moreover, the front-end|tip curved part 106bC of the connection piece 106C of 104 C of fins is engaged with the hole part 112D of the adjacent fin 104D. Furthermore, the front end portion of the positioning portion 108D of the fin 104D is in contact with the base portion B of the positioning portion 108E of the adjacent fin 104E. In addition, the front end bent portion 106bD of the connecting piece 106D of the fin 104D is engaged with the hole portion 112E of the adjacent fin 104E. Furthermore, the tip portion of the positioning portion 108E of the fin 104E is in contact with the root portion B of the positioning portion 108F of the adjacent fin 104F. In addition, the front end bent portion 106bE of the connecting piece 106E of the fin 104E is engaged with the hole portion 112F of the adjacent fin 104F. That is, when the front end bent portion of each connecting piece of each fin engages with the hole portion of the adjacent fin, the front end of the positioning portion abuts against the root of the positioning portion of the adjacent fin, and there is a gap between the adjacent fins. The adjacent fins are arranged at the same interval as the cutting height W of the positioning portion, and adjacent fins are directly connected to each other.

Since the fins of the heat sink 100 have the above-mentioned shape, there is no need to provide horizontal folding edges on the upper and lower sides of the fins, and the material of the fins when manufacturing the heat sink is also reduced, which can reduce the manufacturing cost and the weight of the heat sink.

In addition, since the connecting portion of the fins of the heat sink 100 is equipped with a connecting piece that prevents the fins from separating and a positioning portion that prevents the fins from approaching, it is easier to maintain the position of the fins, and it can be more secure. Link fins.

In addition, compared with a radiator in which horizontal folds are arranged on the top and bottom of the fins, and the combined surface is used as a heating surface, in the radiator 100, the heating surface of the fins is a plane, so it can be better used as a cooling object. Contact with the heating element such as the components, can fully cool the heating element.

In addition, in the heat sink 100, since the fins are connected by both the connecting piece and the positioning portion, heat can be conducted between adjacent fins, the heat distribution in the bottom plate 102 can be reduced, and the heating element can be sufficiently cooled.

In addition, in the heat sink 100 , since the protruding connecting portion is provided between adjacent fins, the temperature boundary layer at the periphery of the fins can be broken, and the cooling performance of the heat sink 100 can be improved.

The present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention. For example, in the embodiment of the present utility model, the embodiment using cooling medium such as water or antifreeze solution may also use gas such as air or carbon dioxide.

In addition, in the above-mentioned embodiment, it has been described that the connecting piece 106 becomes two parts that are line-symmetrical by a plane perpendicular to the bottom plate 102 (in FIG. However, the curved portion at the front end of the connecting piece may also be in a non-branched plate shape (for example, rectangular), and may also be divided into three or four parts. In addition, in the above-mentioned embodiment, the embodiment in which the positioning portion 108 is arranged substantially parallel to the bottom plate 102 is described, and other than being substantially parallel, it is sufficient as long as the interval between adjacent fins can be maintained.

In addition, in the above-mentioned embodiment, the embodiment in which the base plate 102 has the groove 114 and the fins 104 are vertically installed on the base plate 102 is described, but the fins 104 may be vertically installed on the base plate 102 by brazing or the like.

In addition, in the above-mentioned embodiments, an embodiment in which the connecting piece, the positioning portion, and the hole portion are formed by punching and bending has been described, but the fins 104 may be attached by welding, bonding, or the like.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (5)

1. a radiator, is characterized in that, comprises base plate and erects the multiple fins in described base plate,

Described fin comprises flat part and connecting portion,

Described connecting portion comprise be set to the linking part outstanding from described flat part, with the hole portion of the root adjacency of described linking part be set to the location division outstanding from described flat part,

Described linking part engages with the hole portion of the described fin of adjacency,

The root butt of the location division of the described fin of described location division and adjacency.

2. radiator according to claim 1, is characterized in that, described linking part is distinguished into the two parts that become line symmetry by the face vertical with described base plate,

Described location division is configured to parallel with described base plate.

3. radiator according to claim 1 and 2, is characterized in that, described base plate comprises the groove of chimeric described fin,

In a described fin, having 2 above described linking parts engages with described hole portion.

4. radiator according to claim 1 and 2, is characterized in that, has 3 above described linking parts and engage with described hole portion in a described fin.

5. radiator according to claim 3, is characterized in that, has 3 above described linking parts and engage with described hole portion in a described fin.