Double-sided blown plate riveting structure and method

Abstract

The invention discloses a double-sided blown plate riveting structure and method. The double-sided blown plate riveting structure comprises at least a base and a plurality of double-sided blown plates. The surface of the base is provided with a plurality of adjacent grooves. Each double-sided blown plate comprises a body, which is vertically extended perpendicular to the surface of the base. Both sides of the body are provided with blown structures. A straight portion is vertically extended from the bottom of the body, and the bottom end of the straight portion is reversely bent to at least one side to extend a reflexed portion. By providing the straight portion, the bottom end of the straight portion is reversely bent to at least one side to extend a reflexed portion, and at least one side of the reflexed portion is partially protruded out of the plane where the outer side surface of the corresponding blown structure is located, so as to provide a punch for riveting, effectively avoiding bending and deformation of the double-sided blown plate during the riveting process, and at the same time, after the double-sided blown plate is riveted, the parallelism between two adjacent double-sided blown plates can be effectively guaranteed, so that the air flows smoothly, thereby improving the heat dissipation efficiency of the product.

Description

Technical Field

[0001] The invention relates to the field of heat dissipation devices, and in particular to a double-sided inflation plate riveting structure and method. Background Art

[0002] In addition to the traditional welding technology, the heat sink fins and the base of the conventional heat sink are combined by stamping. The heat sink fins are first inserted into the preset grooves or clamping protrusions of the base, and then stamped with a stamping punch so that the heat sink fins are clamped and combined with the grooves (or clamping protrusions) of the base. For example, U.S. Utility Model Patent No. 5014776 causes the groove side walls on both sides to be deformed by stamping and pushing, so that the heat sink fins can be clamped to achieve the purpose of combining the heat sink fins with the base.

[0003] The above-mentioned previous patent technology only utilizes the extrusion deformation on both sides of the groove to achieve the purpose of clamping the root of the heat sink, but the clamping force is concentrated on the deformation positions on both sides of the groove opening, and only has two point-shaped clamping forces. Therefore, the clamping effect is not good and it is not easy to ensure its stable combination. Not only may the heat sinks have uneven heights, but the heat sinks are also prone to shaking or falling off.

[0004] At present, there is a method of directly bending the end of the heat sink fin to form a reversed portion, and using a punch to punch the reversed portion so that the heat sink fin is combined with the base. For example, the double-sided blown plate and the riveting structure of the double-sided blown plate disclosed in Chinese utility model patent 201820031179.0, the double-sided blown plate is equivalent to the heat sink fin, which can further improve the heat dissipation efficiency. The double-sided blown plate has a neck, and the neck is formed with a tortuous structure. The purpose of this design is only to avoid the blowing structure of the double-sided blown plate from blocking the riveting position, so that the riveting tool can be pressed down for riveting. Since the double-sided blown plate needs to form a neck with a tortuous structure, it is easy to cause the double-sided blown plate to bend and deform during the riveting process. At the same time, it also makes it difficult to ensure the parallelism between the two adjacent double-sided blown plates after the double-sided blown plate is riveted, which affects the air flow, thereby reducing the heat dissipation efficiency of the product. Therefore, it is necessary to study a solution to solve the above problems. Summary of the invention

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a double-sided blown plate riveting structure and method, which can effectively solve the problems that the existing double-sided blown plate is easily bent and deformed during the riveting process and the parallelism between two adjacent double-sided blown plates after riveting is difficult to ensure.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A double-sided blown plate riveting structure, which at least includes a base and a plurality of double-sided blown plates; the surface of the base is provided with a plurality of adjacent grooves for correspondingly inserting the double-sided blown plates, each double-sided blown plate includes a body, the body vertically extends perpendicular to the surface of the base, both sides of the body are formed with blown structures, the bottom of the body vertically extends to form a straight portion, the straight portion is perpendicular to the surface of the base, and the bottom end of the straight portion is reversely bent to at least one side to extend to form a reflex portion, at least one side of the reflex portion partially protrudes out of the plane where the outer side surface of the corresponding blown structure is located, and the bottom end of the straight portion and the reflex portion are matched to be inserted into the groove of the base;

[0008] By using the above-mentioned base and a plurality of double-sided inflatable plates, after the inflected portion of the double-sided inflatable plate is inserted into the groove of the base, a punch is used to align the inflected portion for punching. The punch covers the inflected portion. After punching, the inflected portion is pressed down in the groove to increase its deformation and be tightly combined in the groove, thereby completing the riveting of the double-sided inflatable plate and the base.

[0009] As a preferred solution, the inflected portion is a section located at one side of the bottom end of the straight portion.

[0010] As a preferred embodiment, the inflected portion is composed of two sections, including a first vertical section and a second vertical section. The first vertical section and the second vertical section are both located on one side of the bottom end of the straight section. The lower end of the first vertical section is connected to the bottom end of the straight section, the upper end of the first vertical section is connected to the upper end of the second vertical section, and the second vertical section is clamped between the first vertical section and one side of the bottom end of the straight section.

[0011] As a preferred embodiment, the inflected portion is composed of three sections, including a first vertical section, a second vertical section and a third vertical section. The first vertical section and the second vertical section are both located on one side of the bottom end of the straight portion, the lower end of the first vertical section is connected to the bottom end of the straight portion, the upper end of the first vertical section is connected to the upper end of the second vertical section, and the third vertical section is located on the other side of the bottom end of the straight portion, and the lower end of the third vertical section is connected to the lower end of the second vertical section.

[0012] A double-sided blown plate riveting method comprises the following steps:

[0013] (1) A base and a plurality of double-sided inflatable plates are provided, each of which includes a main body extending vertically perpendicular to the surface of the base, and both sides of the main body are provided with inflatable structures, and a straight portion extending vertically from the bottom of the main body is perpendicular to the surface of the base, and then the root of each double-sided inflatable plate is bent to form a reversed portion, and at least one side of the reversed portion partially protrudes out of the plane where the outer side surface of the corresponding inflatable structure is located;

[0014] (2) implanting the bottom end of the straight portion and the inflected portion into the groove of the base;

[0015] (3) A punch is used to punch the folded portion. The punch covers the folded portion. After punching, the folded portion is pressed down in the groove to increase its deformation and be tightly combined in the groove, thereby completing the riveting of the double-sided blown plate and the base.

[0016] As a preferred solution, the stamping punch is an inclined slider structure that can avoid the inflation structure. When the stamping punch hits the bottom of the inflation structure, the stamping punch moves to the straight portion.

[0017] As a preferred embodiment, the inflected portion is composed of three sections, including a first vertical section, a second vertical section and a third vertical section. The first vertical section and the second vertical section are both located on one side of the bottom end of the straight portion, the lower end of the first vertical section is connected to the bottom end of the straight portion, the upper end of the first vertical section is connected to the upper end of the second vertical section, the third vertical section is located on the other side of the bottom end of the straight portion, and the lower end of the third vertical section is connected to the lower end of the second vertical section; there are two stamping punches, which are symmetrically arranged on both sides of the double-sided inflation plate and are respectively aligned with the two sides of the inflected portion for stamping.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0019] First, by providing a straight portion, the bottom end of the straight portion is reversely bent to at least one side to extend a reversed portion, and at least one side of the reversed portion partially protrudes out of the plane where the outer side surface of the corresponding inflated structure is located, so as to provide a punch for riveting, thereby effectively avoiding the bending and deformation of the double-sided inflated plate during the riveting process, and at the same time, after the double-sided inflated plate is riveted, the parallelism between the two adjacent double-sided inflated plates can be effectively guaranteed, so that the air flows smoothly, thereby improving the heat dissipation efficiency of the product.

[0020] Second, by adopting a stamping punch as an inclined slider structure that can avoid the inflation structure, when the stamping punch hits the bottom of the inflation structure, the stamping punch is moved to the straight part, so that the stamping punch can better act on the inflected part, thereby making the inflected part better riveted and fixed with the base, and the structure is more stable.

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a first preferred embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the position A in the middle;

[0024] Figure 3It is a structural schematic diagram of a second preferred embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the third preferred embodiment of the present invention.

[0026] Description of the accompanying drawings:

[0027] 10. Base 11. Groove

[0028] 20. Double-sided blown plate 21. Main body

[0029] 22. Inflatable structure 23. Straight section

[0030] 24. Reflected portion 241. First vertical section

[0031] 242, second vertical section 243, first vertical section

[0032] 244, second vertical section 245, third vertical section

[0033] 201, plane 30, stamping punch. DETAILED DESCRIPTION

[0034] Please refer to Figure 1 and Figure 2 As shown, it shows the specific structure of a double-sided blowing plate riveting structure of the first preferred embodiment of the present invention, which at least includes a base 10 and a plurality of double-sided blowing plates 20.

[0035] The surface of the base 10 is provided with a plurality of adjacent grooves 11 for correspondingly inserting the double-sided inflation plates 20 . The base 10 is a base made of copper, aluminum, copper-based alloy or aluminum-based alloy.

[0036] Each double-sided blown plate 20 includes a body 21, which extends vertically perpendicular to the surface of the base 10, and a blown structure 22 is formed on both sides of the body 21. A straight portion 23 extends vertically from the bottom of the body 21, and the straight portion 23 is perpendicular to the surface of the base 10. The bottom end of the straight portion 23 is bent in the opposite direction to at least one side to extend a reflex portion 24. At least one side of the reflex portion 24 partially protrudes out of the plane 201 where the outer side of the corresponding blown structure 22 is located. The bottom end of the straight portion 23 and the reflex portion 24 are provided for matching the groove 11 of the implanted base 10. In this embodiment, the reflex portion 24 is a section, which is located on one side of the bottom end of the straight portion 23.

[0037] By using the base 10 and a plurality of double-sided inflatable plates 20, after the inverted portion 24 of the double-sided inflatable plate 20 is inserted into the groove 11 of the base 10, a punch 30 is used to align the inverted portion 24 for punching. The punch 30 covers the inverted portion 24. After punching, the inverted portion 24 is pressed down in the groove 11 to deform and increase, and is tightly combined in the groove 11, so as to complete the riveting of the double-sided inflatable plate 20 and the base 10.

[0038] The invention also discloses a double-sided blown plate riveting method, comprising the following steps:

[0039] (1) Take a base 10 and a plurality of double-sided inflatable plates 20, each of which includes a body 21, which extends vertically perpendicular to the surface of the base 10, and has inflatable structures 22 formed on both sides of the body 21. A straight portion 23 extends vertically from the bottom of the body 21, and the straight portion 23 is perpendicular to the surface of the base 10. Then, the root of each double-sided inflatable plate 20 is bent to form a reversed portion 24, and at least one side of the reversed portion 24 partially protrudes outside the plane 201 where the outer side surface of the corresponding inflatable structure 22 is located.

[0040] (2) The bottom end of the straight portion 23 and the inflected portion 24 are implanted into the groove 11 of the base 10 .

[0041] (3) A punching punch 30 is used to punch the inflected portion 24. The punching punch 30 covers the inflected portion 24. After punching, the inflected portion 24 is pressed down in the groove 11 to deform and increase, and is tightly combined in the groove 11, so as to complete the riveting of the double-sided blown plate 20 and the base 10. The punching punch 30 is an inclined slider structure that can avoid the blown structure 22. When the punching punch 30 hits the bottom of the blown structure 22, the punching punch 30 is moved to the straight portion 23 to better directly press down on the inflected portion 24.

[0042] Please refer to Figure 3 As shown, it shows the specific structure of a double-sided inflation plate riveting structure of the second preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as the specific structure of the first preferred embodiment mentioned above, and the difference is:

[0043] In this embodiment, the inflected portion 24 is composed of two sections, including a first vertical section 241 and a second vertical section 242. The first vertical section 241 and the second vertical section 242 are both located on one side of the bottom end of the straight portion 23. The lower end of the first vertical section 241 is connected to the bottom end of the straight portion 23, the upper end of the first vertical section 241 is connected to the upper end of the second vertical section 242, and the second vertical section 242 is clamped between the first vertical section 241 and one side of the bottom end of the straight portion 23. In this way, the thickness of the inflected portion 24 is thicker, and the structure is more solid after riveting with the base 10.

[0044] Please refer to Figure 4 As shown, it shows the specific structure of a double-sided inflation plate riveting structure of the third preferred embodiment of the present invention. The specific structure of this embodiment is basically the same as the specific structure of the first preferred embodiment mentioned above, and the difference is:

[0045] In this embodiment, the inflected portion 24 is composed of three sections, including a first vertical section 243, a second vertical section 244 and a third vertical section 245. The first vertical section 243 and the second vertical section 244 are both located on one side of the bottom end of the straight portion 23, the lower end of the first vertical section 243 is connected to the bottom end of the straight portion 23, the upper end of the first vertical section 243 is connected to the upper end of the second vertical section 244, and the third vertical section 245 is located on the other side of the bottom end of the straight portion 23, and the lower end of the third vertical section 245 is connected to the lower end of the second vertical section 244.

[0046] During riveting, two stamping punches 30 are used. The two stamping punches 30 are symmetrically arranged on both sides of the double-sided blown plate 20 and are respectively aligned with both sides of the folded portion 24 for stamping. The stamping is more balanced and will not cause the double-sided blown plate 20 to tilt to one side. The folded portion 24 and the base 10 are riveted together to make the structure more solid.

[0047] The design focus of the present invention is: first, by setting a straight portion, the bottom end of the straight portion is reversely bent to at least one side to extend a reverse folded portion, and at least one side of the reverse folded portion partially protrudes out of the plane where the outer side surface of the corresponding blown structure is located, so as to provide a punch for riveting, effectively avoiding the bending and deformation of the double-sided blown plate during the riveting process, and at the same time, after the double-sided blown plate is riveted, the parallelism between the two adjacent double-sided blown plates can be effectively guaranteed, so that the air flows smoothly, thereby improving the heat dissipation efficiency of the product. Secondly, by adopting a punching punch as an inclined slider structure that can avoid the blown structure, when the punching punch hits the bottom of the blown structure, the punching punch is moved to the straight portion, so that the punching punch can better act on the reverse folded portion, so that the reverse folded portion is better riveted and fixed to the base, and the structure is more stable.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A double-sided inflatable plate riveting structure, which comprises at least a base and a plurality of double-sided inflatable plates; a plurality of adjacent grooves are provided on the surface of the base for correspondingly inserting the double-sided inflatable plates, each double-sided inflatable plate comprises a body, the body extends vertically perpendicular to the surface of the base, and both sides of the body are formed with inflatable structures, characterized in that: The bottom of the body vertically extends out a straight portion, the straight portion is perpendicular to the surface of the base, and the bottom end of the straight portion is reversely bent to at least one side to extend a reflex portion, at least one side of the reflex portion partially protrudes out of the plane where the outer side surface of the corresponding inflation structure is located, and the bottom end of the straight portion and the reflex portion are matched to be implanted in the groove of the base; By using the above-mentioned base and a plurality of double-sided inflatable plates, after the inflected portion of the double-sided inflatable plate is inserted into the groove of the base, a punch is used to align the inflected portion for punching. The punch covers the inflected portion. After punching, the inflected portion is pressed down in the groove to increase its deformation and be tightly combined in the groove, thereby completing the riveting of the double-sided inflatable plate and the base.

2. The double-sided blown plate riveting structure according to claim 1, characterized in that: The inflected portion is a section located at one side of the bottom end of the straight portion.

3. The double-sided blown plate riveting structure according to claim 1, characterized in that: The inflected portion is composed of two sections, including a first vertical section and a second vertical section. The first vertical section and the second vertical section are both located on one side of the bottom end of the straight section. The lower end of the first vertical section is connected to the bottom end of the straight section, the upper end of the first vertical section is connected to the upper end of the second vertical section, and the second vertical section is sandwiched between the first vertical section and one side of the bottom end of the straight section.

4. The double-sided blown plate riveting structure according to claim 1, characterized in that: The inflected portion is composed of three sections, including a first vertical section, a second vertical section and a third vertical section. The first vertical section and the second vertical section are both located on one side of the bottom end of the straight portion, the lower end of the first vertical section is connected to the bottom end of the straight portion, the upper end of the first vertical section is connected to the upper end of the second vertical section, the third vertical section is located on the other side of the bottom end of the straight portion, and the lower end of the third vertical section is connected to the lower end of the second vertical section.

5. A double-sided blown plate riveting method, characterized in that: The following steps are included: (1) A base and a plurality of double-sided inflatable plates are provided, each of which includes a main body extending vertically perpendicular to the surface of the base, and both sides of the main body are provided with inflatable structures, and a straight portion extending vertically from the bottom of the main body is perpendicular to the surface of the base, and then the root of each double-sided inflatable plate is bent to form a reversed portion, and at least one side of the reversed portion partially protrudes out of the plane where the outer side surface of the corresponding inflatable structure is located; (2) implanting the bottom end of the straight portion and the inflected portion into the groove of the base; (3) A punch is used to punch the folded portion. The punch covers the folded portion. After punching, the folded portion is pressed down in the groove to increase its deformation and be tightly combined in the groove, thereby completing the riveting of the double-sided blown plate and the base.

6. The double-sided blown plate riveting method according to claim 5, characterized in that: The punching punch is an inclined slider-shaped structure that can avoid the inflation structure. When the punching punch hits the bottom of the inflation structure, the punching punch moves to the straight portion.

7. The double-sided inflated plate riveting method according to claim 5, characterized in that: The inflected portion is composed of three sections, including a first vertical section, a second vertical section and a third vertical section. The first vertical section and the second vertical section are both located on one side of the bottom end of the straight portion, the lower end of the first vertical section is connected to the bottom end of the straight portion, the upper end of the first vertical section is connected to the upper end of the second vertical section, the third vertical section is located on the other side of the bottom end of the straight portion, and the lower end of the third vertical section is connected to the lower end of the second vertical section; there are two stamping punches, which are symmetrically arranged on both sides of the double-sided inflation plate and are respectively aligned with the two sides of the inflected portion for stamping.

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