JP3048806U - Thin laminated heatsink - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated thin-film radiator which has a simple structure, is easy to manufacture, has an extremely large heat radiation area, and has high heat radiation efficiency. SOLUTION: A plurality of large-sized and small-area flat heat-dissipating flakes (31, 32, 81, 82) are alternately stacked and laminated to form fins (33, 83) and overlapped portions (34, 84).
The heat of the heating element (4) is absorbed from a portion where the overlapping portion (34, 84) is in contact with the heating element (4), and is conducted to the fin portions (33, 83). 33, 83) is configured to dissipate the conduction heat from the overlapping portion (34, 84).

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a heat conduction type radiator, and more particularly, to a lamella and a laminated radiator in which a plurality of planar radiators having different large and small areas are alternately contact-laminated to form a fin portion and a superimposed portion.

[0002]

[Prior art]

 At present, most heat conduction radiators found on the market are radiators 1 made by die-casting or extrusion molding (as shown in FIG. 11). In addition to being related to factors such as the material characteristics and its processing structure, it is mainly determined by the size of the heat dissipation area of the radiator.In short, under the same standard size, the larger the heat dissipation area of the radiator, the larger The higher the heat radiation effect, the lower the heat radiation effect.

[0003] Also, the aluminum radiator formed by the extrusion molding, the die casting, or the mechanical cutting has a certain limit in the heat radiation area which can be increased due to the limitation of the traditional metal working mode. If the fan is attached to the radiator under the same radiating area to solve the above-mentioned problem, higher radiating efficiency can be achieved, but this will increase the cost and increase the volume of the radiating device as a whole. However, electric fans require time and effort to repair and repair, and power must be supplied for their operation, which is not desirable as an electronic device that needs to be light and thin at present. Therefore, if the heat radiation area of the radiator can be increased, the installation of the electric fan can be omitted in many cases, and the major problem of the radiator is solved.

[0004]

[Problems to be solved by the invention]

 In view of the above-mentioned problems of the conventional radiator, an object of the present invention is to provide a thin-layer laminated radiator that has a simple structure, is easy to manufacture, has an extremely large heat radiation area, and has high heat radiation efficiency. I do.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a method for forming a fin and a superposed portion by alternately superposing and stacking a plurality of large and small-area planar heat-dissipating flakes, and forming a fin and a superposed portion in contact with the heating element. And the heat of the heating element is absorbed and conducted to the fin, and the fin is configured to dissipate the conduction heat from the overlapping portion.

[0006] Then, the plurality of planar heat-dissipating flakes are superposed and stacked in an upright shape or in an upper or lower horizontal shape. Then, a through hole is provided in each overlapping portion, or a coupling hole is provided in an appropriate position of the overlapping portion of each of the flat heat dissipation flakes such that the flat heat dissipation flake is formed of an aluminum metal flake. The flat heat-dissipating flakes may be screwed or riveted through a screwing member or a rivet member through the coupling hole, or the superposed portions of the flat heat-dissipating flakes may be welded in a furnace with an alloy material and joined. A fixing member is attached to each of the outer surfaces of both ends of the laminated body of the planar heat-dissipating lamella, which is completed by the above-mentioned superimposed lamination, and the screwing member or the rivet portion is inserted into a coupling hole formed in the fixing member. It is more preferable that the laminate of the planar heat-dissipating lamellas be firmly held by simultaneously passing and joining the members.

In the present invention configured as described above, a plurality of three or more pieces of different long and short plane heat radiating pieces are arranged in an upright state, or a plurality of large and small different plane heat radiating pieces are formed in an upper and lower horizontal state. The fins and the overlapped portions are alternately superimposed and laminated to form a fin and an overlapped portion, and the fins have at least one heat radiation gap. The thickness of the fins can be reduced to increase the number of fins at the fins, and the heat radiation area can be increased to obtain an excellent heat radiation effect. In addition, it is easy to manufacture because it is assembled by alternately stacking a plurality of plane heat dissipation flakes. If you want to change the shape of the radiator, you can change the shape of the plane heat dissipation flakes, which is quick and convenient. It can be designed as follows. Since the heat dissipation area can be doubled by reducing the thickness of the flat heat dissipation flakes as described above, it is not necessary to install a fan unless the heat generated by the heating element is extremely high. The disadvantages associated with doing so can be avoided.

[0008]

[Embodiment of the invention]

 Hereinafter, the present invention will be specifically described based on embodiments, but the present invention is not limited to only this example. The laminated radiator of the present invention comprises at least three planar radiating fins, and the planar radiating lamellas are contact-laminated with each other to form a fin and a superposed part. The method and function will be specifically described.

First, the first embodiment of the present invention will be described. In the lamella lamination method of the lamella lamination type radiator, the lamellas are stacked in contact with each other in an upright state, and then three types of bonding systems, for example, The connection is made by any of the following methods: furnace welding connection, screw connection, and rivet connection using an alloy material. Of course, in addition to the above three types of connection, other types of connection may be used. Good.

As shown in FIG. 1, the laminated thin radiator 3 of the present invention includes a long flat heat radiating piece 31 and a short flat heat radiating piece 32 of a set. 32 are alternately arranged face-to-face, and as shown in FIG. 2, after the contact arrangement is completed, in-furnace welding connection using an alloy material (because it belongs to the prior art, description thereof is omitted here). In combination, the fins 33 and the overlapping portion 34 can be formed on the laminated radiator 3 of the present invention. Therefore, by changing the thickness of the long and short plane heat radiating thin pieces 31 and 32, it is possible to adjust the number of fins of the fins 33 of the laminated thin radiator 3 of the present invention and change the distance between the fins. That is, under a certain standard, the thinner the longer and shorter plane heat dissipation flakes 31 and 32 are, the greater the number of fins of the fins 33 and the more the heat dissipation area is increased. In addition, the heat dissipation effect is further improved.

It should be noted here that when the longer and shorter flat heat radiating strips 31 and 32 are brought into contact with each other and joined together, the bottom 341 of the overlapping portion 34 should be formed in one plane. The invented thin laminated radiator 3 can be brought into close contact with the heating element 4 so that the heat generated by the heating element 4 can be uniformly discharged through the laminated thin radiator 3. The joining method of the laminated laminated radiator 3 of the present invention can be joined by a screwing member 5 in addition to the in-furnace welding method using an alloy material as described above (as shown in FIG. 3). Coupling holes 36 through which the screwing members 5 can be inserted and screwed are provided through the overlapping portions of the planar heat radiation flakes 31 and 32 so as to correspond to each other. The screwing member 5 includes a screw rod 51 and a nut 52. The screw rod 51 is inserted through the coupling hole 36, and the nut 52 is screwed to the end of the screw rod 51 by a screwing method. 32 can be stacked and combined. Naturally, in addition to the screwing method, a connecting method of a rivet member may be adopted. As shown in FIG. 4, a rivet 6 is inserted through the corresponding communicating hole 36 to form the flat heat-dissipating flakes 31, 32. Can be rivet-bonded in a stacked manner.

Further, in order to make the superimposed connection of the planar heat radiating strips 31 and 32 in the laminated radiator 3 of the present invention more firm, fixing members 7 are provided on both outer surfaces of both ends of the laminated radiator 3. Alternatively, as shown in FIG. 5, each fixing member 7 is provided with a coupling hole 71 corresponding to the coupling hole 36 of the flat heat dissipation lamellas 31 and 32, and the screw rod 51 is sequentially connected to the coupling holes 71 and 36. , 71, and a nut 52 is screwed to the tip of the screw rod 51, and the flat heat dissipating thin plates 31, 32 and the fixing member 7 are respectively positioned at predetermined positions by a screwing method (or a rivet method). Can be combined.

In the above description, the technique of increasing the heat radiation area of the radiator by adjusting the thickness of the longer and shorter planar heat radiation flakes 31 and 32 has been mentioned. Since the short plane heat dissipation flakes 31 and 32 are formed by alternately overlapping and laminating them, a few rows of exhaust holes 311 (shown in FIG. ) May be provided to increase the contact area with the air and to provide excellent air permeability, thereby further improving the heat radiation effect. Of course, fixing members 7 (as shown in FIG. 7) may be provided in contact with the outer surfaces of both ends of the laminated radiator 3 having the exhaust holes 311, respectively. It can be firmly fixed.

In view of the above, the laminated radiator 3 of the present invention is formed by the superimposed laminating method, so that the shape of each radiating thin plate may be modified according to actual needs, as shown in FIG. As described above, by forming the longer flat heat dissipation thin piece 37 in a convex shape and providing the other short flat heat dissipation thin piece 38 in a horizontally long rectangular shape, the external appearance of the laminated thin-film radiator 3 can be changed. .

Next, a second embodiment of the present invention will be described. In the second embodiment, the large and small planar heat dissipating lamellas 81 and 82 are formed by contacting and laminating the upper and lower horizontal parts, respectively. There are three types of connection methods such as a fastening connection and a rivet connection, and of course, other appropriate methods may be used. Since the above three types of connection are all the same as those in the first embodiment, this embodiment will be described only with respect to the stacking and stacking method of the flat heat radiation thin pieces.

As shown in FIG. 9, the superposed lamination of the planar heat-dissipating lamellas 81 and 82 in the thin-layer laminated radiator 8 of the present embodiment employs an upper and lower horizontal laminating method, that is, a large and small planar heat radiator. The lamellas 81 and 82 are formed by alternately contacting and laminating the lamellas 81 and 82 horizontally in the upper and lower directions. By bringing the bottom surface of the portion 84 into contact with the heating element 4, the heat generated by the heating element 4 is conducted and released.

As shown in FIG. 10, a through-hole 85 is further vertically formed through the overlapping portion 84 in the thin-layer laminated radiator 8 of the second embodiment, and the inside of the through-hole 85 is formed. Another form of heat generator (not shown) may be accommodated. It is most preferable that each of the planar heat-dissipating flakes of each of the thin-film laminated radiators 3 and 8 of each of the above embodiments is formed of an aluminum metal flake, and the planar heat-dissipating flakes 81 and 82 used in the second embodiment are circular. It may be shaped or elliptical.

[0018]

[Effect of the invention]

 As can be seen from the above description, the present invention has the following advantages and effects. 1. Since a plurality of plane heat dissipation flakes were assembled by superimposing and stacking, the thickness of the plane heat dissipation flakes can be appropriately changed to modify the number of fins in the fin portion and the gap between the fins, that is, a constant value. In the available space, by increasing the number of fins at the fins by reducing the thickness of the heat radiation flakes, it is possible to increase the heat radiation area and obtain an excellent heat radiation effect.

[0019] 2. As described above, since a plurality of planar heat-dissipating flakes can be assembled by alternately superimposing and laminating them, the production is simple, so that the production time can be shortened and the production cost can be reduced. 3. Similarly, since the planar heat radiation flakes described above can be assembled by being superimposed and laminated, when the shape of the radiator is changed, the shape of the plane heat radiation flakes may be changed, which is quick and convenient in design.

[0020] 4. Since the heat radiation area can be easily doubled, there is no need to provide a fan unless the amount of heat generated by the heating element is extremely high, and it is possible to avoid the drawbacks associated with the provision of the fan.

[Brief description of the drawings]

FIG. 1 is a three-dimensional exploded view of a first preferred embodiment of the present invention.

FIG. 2 is a three-dimensional view of an assembly connection in the first embodiment.

FIG. 3 is a perspective view of another assembly connection in the first embodiment.

FIG. 4 is a perspective view of another assembly connection in the first embodiment.

FIG. 5 is a three-dimensional view of yet another assembly connection in the first embodiment.

FIG. 6 is a schematic view of the first embodiment having an exhaust hole.

FIG. 7 is a view showing a state in which the first embodiment is provided with an exhaust hole and firmly held by a holding member.

FIG. 8 is a view showing a state in which long and short plane heat-dissipating flakes in the first embodiment are provided in different shapes and laminated and connected.

FIG. 9 is a side sectional view showing a second preferred embodiment of the present invention in an assembled state.

FIG. 10 is a side sectional view of another assembling mode in the second embodiment.

FIG. 11 is a side view of a radiator formed by conventional aluminum extrusion molding.

[Explanation of symbols]

 31, 32, 81, 82 Planar heat-dissipating flake 311 Exhaust hole 33, 83 Fin part 34, 84 Superposed part 36, 71 Coupling hole 7 Fixed member 85 Through hole

Claims (9)

[Utility model registration claims] 1. A fin portion and an overlap portion are formed by alternately stacking a plurality of large and small area heat-dissipating flakes having different areas, and the heat of the heating element is determined from a position where the overlapping portion is in contact with the heating element. And the fin portion dissipates the conduction heat from the overlapping portion to absorb heat from the fin portion. 2. The thin-film laminated radiator according to claim 1, wherein the plurality of planar heat-radiating thin films are stacked in an upright manner. 3. The thin-film laminated radiator according to claim 1, wherein the plurality of planar heat-radiating thin films are stacked vertically and horizontally. 4. The thin-plate laminated radiator according to claim 1, wherein a plurality of exhaust holes are formed in a fin portion of each of the planar heat-dissipating flakes in an appropriate arrangement. 5. The thin-layer laminated radiator according to claim 1, wherein a through-hole is provided in each of the overlapping portions of the planar heat-dissipating flakes. 6. The thin-film laminated radiator according to claim 1, wherein said planar heat-radiating flakes are formed of aluminum metal flakes. 7. A connecting hole is provided at an appropriate portion of the overlapping portion of each of the flat heat radiating strips, and the flat heat radiating strip is screwed or riveted through a screwing member or a rivet member through the connecting hole. The thin-film laminated radiator according to claim 1. 8. The superposed portion of each of the planar heat-dissipating flakes is joined by welding in a furnace with an alloy material.
2. The thin-layer laminated radiator according to 1. 9. A fixing member is attached to each of the outer surfaces of both ends of the laminated body of the planar heat-radiating lamella, which is completed by superimposing and joining, and the screwing member or the rivet member is simultaneously passed through the coupling hole formed in the holding member. By combining
9. The thin-layer laminated radiator according to claim 7, wherein the flat heat-dissipating laminate is firmly held.