CN211012634U - Stamping riveting structure of radiating fin - Google Patents
Stamping riveting structure of radiating fin Download PDFInfo
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- CN211012634U CN211012634U CN201921306873.XU CN201921306873U CN211012634U CN 211012634 U CN211012634 U CN 211012634U CN 201921306873 U CN201921306873 U CN 201921306873U CN 211012634 U CN211012634 U CN 211012634U
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Abstract
The utility model discloses a stamping riveting structure of a radiating fin, which comprises a base and radiating fins; the surface of the base is provided with a groove, and at least one side of the opening of the groove is provided with a contact surface; the heat dissipation fin comprises an inserting part, a connecting part and a main body part which are connected together, wherein the inserting part is of a reverse folding structure and is embedded in the groove, and the connecting part extends towards one side relative to the inserting part and is abutted against the contact surface to be contacted; through being formed with connecting portion on heat radiation fins to the cooperation connecting portion contacts with the contact surface on the base, can stabilize to heat radiation fins one side and support on the one hand, the punching press is carried out the punching press to the portion of planting of inflection structure, the atress is more easy, make heat radiation fins combine on the base more reliably, and further reduce heat radiation fins's height, be difficult for bending the deformation, crooked phenomenon can not appear, ensure that the heat dissipation runner that forms between two heat radiation fins is straight, on the other hand the heat can directly transmit to connecting portion on the base, effectively improve the radiating efficiency.
Description
Technical Field
The utility model belongs to the technical field of the radiator technique and specifically relates to indicate a heat radiation fins's punching press riveting structure.
Background
In addition to the conventional welding and bonding technique, the conventional method of bonding the heat sink fins to the base also utilizes a stamping method to insert the heat sink fins into the predetermined grooves or the retaining bosses of the base, and then uses a stamping punch to stamp, so that the heat sink fins are retained and bonded to the grooves (or the retaining bosses) of the base, for example, in U.S. utility model No. 5014776, the heat sink fins are clamped by the stamping and pushing deformation of the side walls of the grooves at both sides, thereby achieving the purpose of bonding the heat sink fins to the base.
The above prior art uses only the extrusion deformation of the two sides of the groove to clamp the root of the heat sink, but the clamping force is concentrated at the deformation positions of the two sides of the groove opening, and only has two point-like clamping forces, so the clamping effect is not good, the stable combination is not easy to ensure, the uneven height of the heat sinks may occur, and the heat sinks are easy to shake or fall off.
At present, it has directly been bent at heat radiation fin's tip and has formed a inflection portion to have appeared, utilize the punching press die to carry out the punching press to inflection portion, make heat radiation fin and base combine, the structure is riveted to inlaying of the two-sided inflation board that china utility model patent 201820031179.0 discloses and two-sided inflation board, two-sided inflation board is equivalent to heat radiation fin, the neck has on the two-sided inflation board, however, the neck is unsettled setting, the purpose of this kind of design is only to shelter from towards the riveting position in order to avoid the inflation structure of two-sided inflation board, utilize this to inlay the riveting structure, can not make two-sided inflation board combine on the base more firmly, two-sided inflation board is the deformation of bending easily, also can't make the contact area of two-sided inflation board and base bigger simultaneously, and the heat dissipation efficiency is improved. Therefore, there is a need to develop a solution to the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide a stamping and riveting structure of heat dissipation fins, which can effectively solve the problems of unstable combination, easy bending and low heat dissipation efficiency of the prior heat dissipation fins.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a stamping riveting structure of a radiating fin comprises a base and the radiating fin; the surface of the base is provided with a groove for inserting the radiating fins, and at least one side of the opening of the groove is provided with a contact surface; the heat dissipation fin comprises an inserting part, a connecting part and a main body part which are connected together, wherein the inserting part is of a reverse folding structure and is embedded in the groove, and the connecting part extends towards one side relative to the inserting part and at least partially abuts against the contact surface to be contacted;
after the heat radiating fins are inserted into the grooves of the base, the inserting part is punched by a punching head, the punching head covers the inserting part, the inserting part is pressed downwards in the grooves to generate deformation and increase after punching, and the inserting part is tightly combined in the grooves to complete the combination of the heat radiating fins and the base, and meanwhile, the connecting part is abutted against the contact surface to be contacted.
Preferably, a strip-shaped boss is formed on each of two sides of the groove, and the contact surface is located on the top surface of one strip-shaped boss.
Preferably, the contact surface is a horizontal surface, and the bottom surface of the connecting portion is parallel to the contact surface and is entirely in contact therewith.
As a preferred scheme, portion, connecting portion and main part are planted in proper order by lower to upper integrated into one piece connection, and portion and the main part of planting all vertically extend, and this connecting portion level extends.
As a preferable scheme, the grooves are arranged in parallel at intervals, correspondingly, the heat dissipation fins are also arranged in plurality, and the insertion portion of each heat dissipation fin is embedded in the corresponding groove for fixing.
Preferably, the insertion part is a U-shaped structure formed by one-time reverse folding.
Preferably, the insertion portion is formed into a coiled structure through at least two inflections.
As a preferred scheme, the other end surface of the base is provided with more than one caulking groove for being fittingly embedded into the heat pipe, and the heat pipe is provided with a flat bottom surface which is exposed and combined with the bottom end surface of the base.
Preferably, the heat pipe is bent to penetrate through the main body of the heat dissipation fin to form a tight fit combination.
As a preferable scheme, an end face of the main body portion of the heat dissipation fin penetrates through a containing groove for filling the cooling liquid.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:
through being formed with connecting portion on heat radiation fins to the cooperation connecting portion contacts with the contact surface on the base, can stabilize to heat radiation fins one side and support on the one hand, the punching press is carried out the punching press to the portion of planting of inflection structure, the atress is more easy, make heat radiation fins combine on the base more reliably, and further reduce heat radiation fins's height, be difficult for bending the deformation, crooked phenomenon can not appear, ensure that the heat dissipation runner that forms between two heat radiation fins is straight, on the other hand the heat can directly transmit to connecting portion on the base, effectively improve the radiating efficiency.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a perspective view of a first preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a heat sink in a first preferred embodiment of the present invention;
FIG. 3 is a front view of a first preferred embodiment of the present invention;
FIG. 4 is a schematic partial cross-sectional view of a first state of a punch riveting process according to a first preferred embodiment of the present invention;
FIG. 5 is a partial cross-sectional view of the second state of the punch riveting process in accordance with the first preferred embodiment of the present invention;
FIG. 6 is a schematic partial cross-sectional view of a third state of the punch riveting process in accordance with the first preferred embodiment of the present invention;
FIG. 7 is a perspective view of a second preferred embodiment of the present invention;
FIG. 8 is a cross-sectional view of a second preferred embodiment of the present invention;
FIG. 9 is a perspective view of a third preferred embodiment of the present invention;
fig. 10 is an enlarged view of a heat sink in a third preferred embodiment of the present invention;
FIG. 11 is a front view of a third preferred embodiment of the present invention;
FIG. 12 is a schematic partial cross-sectional view of a third preferred embodiment of the present invention in a first state of a press riveting process;
FIG. 13 is a partial cross-sectional view of a second state of the punch riveting process in accordance with a third preferred embodiment of the present invention;
FIG. 14 is a partial cross-sectional view of a third state of the punch riveting process in accordance with a third preferred embodiment of the present invention;
FIG. 15 is a perspective view of a fourth preferred embodiment of the present invention;
fig. 16 is a sectional view of a fourth preferred embodiment of the present invention.
The attached drawings indicate the following:
10. base 11, groove
12. Contact surface 13, strip boss
14. Groove 15, caulking groove
20. Heat radiation fin 21 and insertion part
22. Connecting part 23 and main body part
30. Punch 40 and heat pipe
41. And flatly pasting the bottom surface.
Detailed Description
Referring to fig. 1 to 6, a specific structure of a first preferred embodiment of the present invention is shown, which includes a base 10 and heat dissipation fins 20.
The surface of the base 10 is provided with a groove 11 for inserting the heat dissipation fin 20, and at least one side of the opening of the groove 11 is provided with a contact surface 12; in this embodiment, the base 10 is a copper, aluminum, copper-based alloy or aluminum-based alloy base, strip-shaped bosses 13 are formed on both sides of the trench 11, the contact surface 12 is located on the top surface of one of the strip-shaped bosses 13, and the contact surface 12 is a horizontal surface, but is not limited to the horizontal surface, and may also be an inclined surface; and, the slot 11 is a plurality of that the interval parallel set up to all sunken recess 14 that is formed in the surface of base 10 between two adjacent slots 11 to increase heat radiating area, promote the ventilation radiating effect.
The heat sink 20 includes an insertion portion 21, a connection portion 22 and a main body portion 23 connected together, the insertion portion 21 is of an inverted structure and is embedded in the groove 11, and the connection portion 22 extends to one side relative to the insertion portion 21 and at least partially abuts against the contact surface 12 for contact. In this embodiment, there are also a plurality of heat dissipation fins 20, the insertion portion 21 of each heat dissipation fin 20 is embedded in the corresponding groove 11 for fixing, and the insertion portion 21 is a U-shaped structure formed by one-time folding; the bottom surface of the connecting part 22 is parallel to the contact surface 12 and is completely contacted with the contact surface in a fitting manner, so that the heat dissipation fins 20 can be better supported; and, the portion of planting 21, connecting portion 22 and main part 23 are connected from bottom to top in proper order by integrated into one piece, and portion of planting 21 and main part 23 all vertically extend, and this connecting portion 22 level extension. And, a receiving groove (not shown) for filling the cooling liquid is formed through one end surface of the main body portion 23 of the heat dissipation fin 20 to enhance the heat dissipation effect.
With the base 10 and the heat dissipation fins 20, as shown in fig. 4, after the heat dissipation fins 20 insert the insertion portion 21 into the groove 11 of the base 10, as shown in fig. 5, a punching punch 30 is used to punch the insertion portion 21, the punching punch 30 covers the insertion portion 21, after punching, the insertion portion 21 is pressed down in the groove 11 to generate deformation and increase, and is tightly combined in the groove 11, as shown in fig. 6, so as to complete the combination of the heat dissipation fins and the base, and the connection portion 22 is contacted on the contact surface 12.
When the heat dissipation base is used, the base 10 is in contact with a heating element, the heat of the heating element is transferred to the base 10, then, a part of the heat on the base 10 is transferred to the main body portion 23 through the inserting portion 21 and the connecting portion 22 in sequence to dissipate the heat, the other part of the heat on the base 10 is directly transferred to the connecting portion 22 through the contact surface 12, and then the heat is transferred to the main body portion 23 through the connecting portion 22 to dissipate the heat.
Referring to fig. 7 and 8, a specific structure of a second preferred embodiment of the present invention is shown, which is basically the same as the specific structure of the first preferred embodiment, except that:
in this embodiment, the other end surface of the base 10 is provided with more than one embedded groove 15 for being embedded into the heat pipe 40 in a matching manner, the heat pipe 40 is provided with a flat bottom surface 41 and is exposed and combined with the bottom end surface of the base 10, the heat pipe 40 is bent to penetrate through the main body portion 23 of the heat dissipation fins 20 to form a tight fit combination, and by arranging the heat pipe 40, the heat on the base 10 can be transferred to the main body portion 23 of the heat dissipation fins 20 through the heat pipe 40, so as to improve the heat dissipation efficiency.
Referring to fig. 9 to 14, a specific structure of a third preferred embodiment of the present invention is shown, the specific structure of this embodiment is basically the same as that of the first preferred embodiment, except that:
in this embodiment, the insertion portion 21 is bent at least twice to form a curled structure, so that the insertion portion 21 and the base 10 are combined more firmly and reliably, the contact area is larger, and the heat dissipation efficiency is improved.
Referring to fig. 15 and 16, a specific structure of a fourth preferred embodiment of the present invention is shown, which is basically the same as the specific structure of the second preferred embodiment, except that:
in this embodiment, the insertion portion 21 is bent at least twice to form a curled structure, so that the insertion portion 21 and the base 10 are combined more firmly and reliably, the contact area is larger, and the heat dissipation efficiency is improved.
The utility model discloses a design focus lies in: through being formed with connecting portion on heat radiation fins to the cooperation connecting portion contacts with the contact surface on the base, can stabilize to heat radiation fins one side and support on the one hand, the punching press is carried out the punching press to the portion of planting of inflection structure, the atress is more easy, make heat radiation fins combine on the base more reliably, and further reduce heat radiation fins's height, be difficult for bending the deformation, crooked phenomenon can not appear, ensure that the heat dissipation runner that forms between two heat radiation fins is straight, on the other hand the heat can directly transmit to connecting portion on the base, effectively improve the radiating efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. A stamping riveting structure of a radiating fin comprises a base and the radiating fin; the surface of this base has been seted up the slot to supply heat radiation fin to insert and plant, its characterized in that: at least one side of the opening of the groove is provided with a contact surface; the heat dissipation fin comprises an inserting part, a connecting part and a main body part which are connected together, wherein the inserting part is of a reverse folding structure and is embedded in the groove, and the connecting part extends towards one side relative to the inserting part and at least partially abuts against the contact surface to be contacted;
after the heat radiating fins are inserted into the grooves of the base, the inserting part is punched by a punching head, the punching head covers the inserting part, the inserting part is pressed downwards in the grooves to generate deformation and increase after punching, and the inserting part is tightly combined in the grooves to complete the combination of the heat radiating fins and the base, and meanwhile, the connecting part is abutted against the contact surface to be contacted.
2. The press-riveting structure of a radiator fin according to claim 1, wherein: a strip-shaped boss is formed on each of two sides of the groove, and the contact surface is located on the top surface of one strip-shaped boss.
3. The press-riveting structure of a radiator fin according to claim 1, wherein: the contact surface is a horizontal surface, and the bottom surface of the connecting part is parallel to the contact surface and is completely attached and contacted with the contact surface.
4. The press-riveting structure of a radiator fin according to claim 1, wherein: insert planting portion, connecting portion and main part and connect by lower up integrated into one piece in proper order, insert planting portion and the equal vertical extension of main part, this connecting portion level extends.
5. The press-riveting structure of a radiator fin according to claim 1, wherein: the grooves are arranged in parallel at intervals, correspondingly, the radiating fins are also arranged in a plurality, and the inserting part of each radiating fin is embedded in the corresponding groove to be fixed.
6. The press-riveting structure of a radiator fin according to claim 1, wherein: the inserting part is of a U-shaped structure formed by one-time reverse folding.
7. The press-riveting structure of a radiator fin according to claim 1, wherein: the inserting part is of a coiled structure formed by at least twice reverse folding.
8. The press-riveting structure of a radiator fin according to claim 1, wherein: the following steps: the other end face of the base is provided with more than one caulking groove for being fittingly embedded into the heat pipe, and the heat pipe is provided with a flat bottom surface which is exposed and combined with the bottom end face of the base.
9. The press-riveting structure of a radiator fin according to claim 8, wherein: the following steps: the heat pipe is bent to penetrate through the main body part of the radiating fin to form a close fit combination.
10. The press-riveting structure of a radiator fin according to claim 1, wherein: the following steps: one end face of the main body part of the heat dissipation fin penetrates through to form a containing groove for filling cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306873.XU CN211012634U (en) | 2019-08-13 | 2019-08-13 | Stamping riveting structure of radiating fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306873.XU CN211012634U (en) | 2019-08-13 | 2019-08-13 | Stamping riveting structure of radiating fin |
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| Publication Number | Publication Date |
|---|---|
| CN211012634U true CN211012634U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921306873.XU Active CN211012634U (en) | 2019-08-13 | 2019-08-13 | Stamping riveting structure of radiating fin |
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| CN (1) | CN211012634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388845A (en) * | 2019-08-13 | 2019-10-29 | 惠州汉旭五金塑胶科技有限公司 | The punch riveting structure of radiating fin |
| CN110553532A (en) * | 2019-09-27 | 2019-12-10 | 惠州汉旭五金塑胶科技有限公司 | Double-sided blown-up plate riveting structure and method |
-
2019
- 2019-08-13 CN CN201921306873.XU patent/CN211012634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388845A (en) * | 2019-08-13 | 2019-10-29 | 惠州汉旭五金塑胶科技有限公司 | The punch riveting structure of radiating fin |
| CN110553532A (en) * | 2019-09-27 | 2019-12-10 | 惠州汉旭五金塑胶科技有限公司 | Double-sided blown-up plate riveting structure and method |
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