Flexible fitting jig

By using the arc-shaped structure and adsorption component design of the flexible bonding fixture, the problem of air bubbles after Mylar sheet is bonded to plate-type heat sinks is solved, thereby improving the flatness of the bottom surface of plate-type heat sinks and increasing production efficiency.

CN223478377UActive Publication Date: 2025-10-28DONGGUAN HECHUANG INTELLIGENT MFG TECH CO LTD
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Patent Information

Application Number
CN202423006805.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-10-28
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

In the prior art, bubbles are easily formed after the Mylar sheet is attached to the plate-type heat sink, resulting in an uneven bottom surface of the plate-type heat sink, which affects performance.

Method used

A flexible bonding fixture is used, including a base, a support seat and an adsorption mechanism. The arc-shaped structure and protrusions work together with the adsorption components to make the Mylar sheet fit tightly against the plate-type heat sink. The arc-shaped structure design allows air to be discharged from both sides, avoiding the formation of air bubbles.

Benefits of technology

This improved the flatness of the bottom surface of the plate radiator, ensuring a tight fit between the Mylar fins and the plate radiator, thereby increasing production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mylar film lamination, and discloses a flexible lamination jig, which comprises a base, a supporting seat and an adsorption mechanism, a workbench is arranged on the base; the supporting seat is detachably arranged in the workbench; the supporting base is provided with a downwards-sunken containing groove and an upwards-protruding arc-shaped structure. The arc-shaped structure is arranged on the top surface of the supporting seat; the placement groove is formed in the top surface of the supporting seat, and the arc-shaped structure is located outside the placement groove; the adsorption mechanism comprises a first adsorption assembly and a second adsorption assembly; the first adsorption assembly is arranged in the workbench, and the second adsorption assembly is arranged in the supporting base. The first adsorption assembly is communicated with the second adsorption assembly; a protruding part is arranged in the center of the arc-shaped structure and is higher than the top face of the workbench. Two ends of the bottom of the arc-shaped structure are flush with the top surface of the workbench.
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Description

Technical Field

[0001] This utility model relates to the field of Mylar film bonding technology, specifically a flexible bonding fixture. Background Technology

[0002] Mylar film, a thin film made from dimethyl terephthalate and ethylene glycol through a specific process, is widely used in electronics, home appliances, instruments, displays, motor slots, computers and peripherals due to its superior insulation properties, excellent electrical, mechanical, heat resistance and chemical resistance.

[0003] During the production of plate-type radiators, Mylar sheets are adhered to their bottom surfaces to prevent current conduction between the bottom surface of the radiator and the heat source, thus avoiding short circuits. Currently, a combination of manual and semi-automatic methods is commonly used to attach the Mylar sheets to the bottom of plate-type radiators. The Mylar sheets are placed on an adsorption fixture, where they are smoothly adsorbed. The plate-type radiator is then placed inside the fixture, aligning the bottom surface of the radiator with the Mylar sheets, and pressing down to ensure a tight seal. However, this method involves a surface-to-surface bonding of the Mylar sheets and the bottom surface of the radiator. If air is not completely expelled during bonding, air bubbles will remain between the Mylar sheets and the bottom surface, resulting in an uneven bottom surface and affecting the performance of the radiator.

[0004] Therefore, there is an urgent need for a flexible and fitting fitting fixture to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a flexible bonding fixture to solve the problem that air bubbles exist after the Mylar sheet and the plate heat sink are bonded in the existing Mylar sheet bonding method, resulting in an uneven bottom surface of the plate heat sink.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A flexible bonding fixture includes a base, a support, and an adsorption mechanism. The base has a worktable. The support is detachably disposed within the worktable. The support has a downwardly recessed placement groove and an upwardly protruding arc-shaped structure. The arc-shaped structure is located on the top surface of the support. The placement groove is located on the top surface of the support, and the arc-shaped structure is located outside the placement groove for placing Mylar tablets. The adsorption mechanism includes a first adsorption component and a second adsorption component. The first adsorption component is disposed within the worktable, and the second adsorption component is disposed within the support. The first and second adsorption components are used for adsorbing Mylar tablets. The first and second adsorption components are connected. The arc-shaped structure has a central protrusion, the height of which is higher than the top surface of the worktable. The bottom ends of the arc-shaped structure are flush with the top surface of the worktable.

[0008] As a preferred embodiment of a flexible fitting fixture, the placement groove is provided with a first positioning post and a second positioning post; both the first positioning post and the second positioning post are configured in two groups; the two groups of first positioning posts are located on the left and right sides of the two corners of the placement groove, and the two groups of second positioning posts are located on the other two corners of the placement groove; the first positioning post and the second positioning post are distributed vertically on the placement groove.

[0009] As a preferred embodiment of a flexible fitting fixture, the outer diameter of the first positioning post is smaller than the outer diameter of the second positioning post.

[0010] As a preferred embodiment of a flexible fitting fixture, the support base is provided with two sets of through holes; the two sets of through holes are distributed on the left and right sides of the arc-shaped structure, and the through holes penetrate the arc-shaped structure.

[0011] As a preferred embodiment of a flexible fitting fixture, both the support base and the arc-shaped structure are made of soft materials; the support base and the arc-shaped structure are integrally formed.

[0012] As a preferred embodiment of a flexible bonding fixture, the first adsorption component includes a first adsorption hole and a second adsorption hole; the first adsorption hole is located in the middle of the worktable; the second adsorption hole is located on the worktable and is located outside the first adsorption hole.

[0013] The second adsorption component includes a third adsorption hole and a fourth adsorption hole; the third adsorption hole is located in the middle of the support base; the fourth adsorption hole is located on the support base and is located outside the third adsorption hole.

[0014] As a preferred embodiment of a flexible bonding fixture, the inner diameter of the first adsorption hole is smaller than the inner diameter of the second adsorption hole; the inner diameter of the third adsorption hole is smaller than the inner diameter of the fourth adsorption hole; the first adsorption hole is connected to the third adsorption hole, and the second adsorption hole is connected to the third adsorption hole.

[0015] As a preferred embodiment of a flexible bonding fixture, the adsorption mechanism includes multiple sets of partitions and multiple sets of support columns; the multiple sets of partitions are staggered between the worktable and the base; the multiple sets of support columns are located between the worktable and the base, and are situated outside the partitions; a flow channel for gas flow is formed between the multiple sets of partitions and the multiple sets of support columns, and the flow channel is respectively connected to the first adsorption hole and the second adsorption hole; an air inlet and an air outlet are provided between the flow channel and the base.

[0016] As a preferred embodiment of a flexible fitting fixture, the placement groove is provided with four sets of return springs; the four sets of return springs are symmetrically distributed in pairs within the placement groove; and mounting holes are provided between the return springs and the placement groove.

[0017] As a preferred embodiment of a flexible fitting fixture, the placement groove has a downwardly recessed notch at one corner; and a pressure plate is provided on the worktable.

[0018] The beneficial effects of this utility model are as follows:

[0019] Through the arc-shaped structure and protrusions, when the Mylar sheet is attached to the plate-type radiator, the Mylar sheet is adsorbed into the placement groove by the cooperation of the first and second adsorption components. When the plate-type radiator is placed on the placement groove, the middle part of the plate-type radiator first attaches to the protrusion of the arc-shaped structure, so that the Mylar sheet in the middle of the placement groove is tightly attached to the middle part of the plate-type radiator. Then, downward pressure is applied to the plate-type radiator. Because the arc-shaped structure is a soft material, the Mylar sheet is tightly attached to the bottom surface of the plate-type radiator from the middle part to both sides of the plate-type radiator. This allows the air between the Mylar sheet and the bottom surface of the plate-type radiator to be discharged from both sides of the plate-type radiator, thereby avoiding the formation of air bubbles and improving the flatness of the bottom surface of the plate-type radiator. Attached Figure Description

[0020] Figure 1 An exploded view of the flexible bonding fixture provided by this utility model;

[0021] Figure 2 A schematic diagram of the overall structure of the workbench and support base provided by this utility model;

[0022] Figure 3 A schematic diagram of the overall structure of the support base provided by this utility model;

[0023] Figure 4 A schematic diagram of the overall structure of the workbench provided by this utility model;

[0024] Figure 5 A schematic diagram of the bottom structure of the workbench provided by this utility model.

[0025] The following are the labeling elements in the figure:

[0026] 10. Base; 11. Workbench; 12. Pressure plate; 20. Support base; 21. Arc-shaped structure; 211. Protrusion; 22. Placement slot; 23. First positioning post; 24. Second positioning post; 25. Through hole; 26. Return spring; 27. Mounting hole; 28. Notch; 31. First adsorption assembly; 311. First adsorption hole; 312. Second adsorption hole; 32. Second adsorption assembly; 321. Third adsorption hole; 322. Fourth adsorption hole; 33. Partition plate; 34. Support post; 35. Air inlet. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0032] In one embodiment of this utility model, such as Figure 1-5 As shown, a flexible bonding fixture is provided, including a base 10, a support 20, and an adsorption mechanism. A worktable 11 is provided on the base 10. The support 20 is detachably disposed within the worktable 11. The support 20 has a downwardly recessed placement groove 22 and an upwardly protruding arc-shaped structure 21. The arc-shaped structure 21 is located on the top surface of the support 20. The placement groove 22 is located on the top surface of the support 20, and the arc-shaped structure 21 is located outside the placement groove 22, for placing Mylar tablets. The adsorption mechanism includes a first adsorption component 31 and a second adsorption component 32. The first adsorption component 31 is disposed within the worktable 11, and the second adsorption component 32 is disposed within the support 20. The first adsorption component 31 and the second adsorption component 32 are used for adsorbing Mylar tablets. The first adsorption component 31 and the second adsorption component 32 are connected. The arc-shaped structure 21 has a central protrusion 211, the height of which is higher than the height of the top surface of the worktable 11. The bottom ends of the arc-shaped structure 21 are flush with the top surface of the workbench 11.

[0033] In this embodiment, the arc-shaped structure 21 and the protrusion 211 form an arc-shaped layer that is high in the middle and low on both sides. When the Mylar sheet is attached, the Mylar sheet and the plate heat sink are attached from the middle of the plate heat sink to the sides of the plate heat sink. This means that the air between the Mylar sheet and the plate heat sink is discharged one by one from the middle to the sides of the plate heat sink, thereby avoiding the formation of air bubbles and improving the flatness of the bottom surface of the plate heat sink.

[0034] When the Mylar sheet is attached to the plate-type radiator via the arc-shaped structure 21 and the protrusion 211, the Mylar sheet is adsorbed into the placement groove 22 under the combined action of the first adsorption component 31 and the second adsorption component 32. When the plate-type radiator is placed on the placement groove 22, the middle part of the plate-type radiator first attaches to the protrusion 211 of the arc-shaped structure 21, so that the Mylar sheet in the middle of the placement groove 22 is tightly attached to the middle part of the plate-type radiator. Then, downward pressure is applied to the plate-type radiator. Because the arc-shaped structure 21 is a soft material, the Mylar sheet is tightly attached to the bottom surface of the plate-type radiator from the middle part of the plate-type radiator to both sides of the plate-type radiator. The air between the Mylar sheet and the bottom surface of the plate-type radiator is discharged from both sides of the plate-type radiator, thereby avoiding the formation of air bubbles and improving the flatness of the bottom surface of the plate-type radiator.

[0035] Preferably, the placement slot 22 is provided with a first positioning post 23 and a second positioning post 24. Both the first positioning post 23 and the second positioning post 24 are configured in two sets. The two sets of first positioning posts 23 are located at the two corners of the placement slot 22, and the two sets of second positioning posts 24 are located at the other two corners of the placement slot 22. The first positioning posts 23 and the second positioning posts 24 are distributed vertically on the placement slot 22. By setting the first positioning posts 23 and the second positioning posts 24, the placement of the plate-type heat sink is positioned and guided, improving the placement efficiency of the plate-type heat sink.

[0036] Furthermore, the outer diameter of the first positioning post 23 is smaller than the outer diameter of the second positioning post 24. By setting the outer diameter of the first positioning post 23 to be smaller than the outer diameter of the second positioning post 24, the placement of the plate-type heat sink is prevented from being placed incorrectly, thus further improving the placement efficiency of the plate-type heat sink.

[0037] Furthermore, the support base 20 is provided with two sets of through holes 25. The two sets of through holes 25 are distributed on the left and right sides of the arc-shaped structure 21, and the through holes 25 penetrate the arc-shaped structure 21. By providing two sets of through holes 25, it is easier for workers to pick up and remove the plate-type heat sinks, thereby increasing the speed of picking up the plate-type heat sinks and thus improving the production efficiency of the plate-type heat sinks.

[0038] Furthermore, both the support base 20 and the arc-shaped structure 21 are made of soft materials, such as rubber or foam. The support base 20 and the arc-shaped structure 21 are integrally formed. By using soft materials for the support base 20 and the arc-shaped structure 21, the bottom surface of the plate-type radiator is protected, preventing scratches. The integral formation of the support base 20 and the arc-shaped structure 21 also reduces the production cost of the fixture.

[0039] Preferably, the first adsorption component 31 includes a first adsorption hole 311 and a second adsorption hole 312. The first adsorption hole 311 is located in the middle of the worktable 11. The second adsorption hole 312 is located on the worktable 11 and is located outside the first adsorption hole 311.

[0040] The second adsorption component 32 includes a third adsorption hole 321 and a fourth adsorption hole 322. The third adsorption hole 321 is located in the middle of the support base 20. The fourth adsorption hole 322 is located on the support base 20 and is located outside the third adsorption hole 321. The inner diameter of the first adsorption hole 311 is smaller than the inner diameter of the second adsorption hole 312. The inner diameter of the third adsorption hole 321 is smaller than the inner diameter of the fourth adsorption hole 322. The first adsorption hole 311 is connected to the third adsorption hole 321, and the second adsorption hole 312 is connected to the third adsorption hole 321.

[0041] The connection between the first adsorption hole 311 and the third adsorption hole 321, and the connection between the second adsorption hole 312 and the third adsorption hole 321, allows the Mylar sheet to be stably adsorbed onto the support base 20. Furthermore, the different inner diameters of the first adsorption hole 311, the second adsorption hole 312, the third adsorption hole 321, and the fourth adsorption hole 322 prevent the Mylar sheet from lifting up around its edges during adsorption, thereby improving the bonding quality between the Mylar sheet and the plate-type heat sink.

[0042] Specifically, the adsorption mechanism includes multiple sets of baffles 33 and multiple sets of support columns 34. The baffles 33 are staggered between the worktable 11 and the base 10. The support columns 34 are located between the worktable 11 and the base 10, and are situated outside the baffles 33. A flow channel for gas flow is formed between the baffles 33 and the support columns 34, and the flow channel is connected to the first adsorption hole 311 and the second adsorption hole 312, respectively. An air inlet 35 and an air outlet are provided between the flow channel and the base 10. In this embodiment, the air inlet 35 and the air outlet are respectively connected to the external vacuum pump. When the Mylar sheet is placed in the placement slot 22, the external vacuum pump is started. Under the action of the first adsorption hole 311, the second adsorption hole 312 and the flow channel, the Mylar sheet is adsorbed into the placement slot 22, which avoids the Mylar sheet from shifting or misaligning, improves the neatness of the Mylar sheet, and enables the Mylar sheet to be neatly attached to the bottom surface of the plate heat sink, thereby improving the bonding quality of the Mylar sheet.

[0043] Preferably, the placement slot 22 is equipped with four sets of return springs 26. The four sets of return springs 26 are symmetrically distributed in pairs within the placement slot 22. Mounting holes 27 are provided between the return springs 26 and the placement slot 22. By setting the return springs 26, after the bottom surface of the plate radiator is tightly attached to the Mylar sheet, the return springs 26 push the plate radiator out of the placement slot 22, making it easier for workers to pick up the plate radiator and improving the production efficiency of plate radiators.

[0044] Furthermore, a downwardly recessed notch 28 is provided on one corner of the placement groove 22. A pressure plate 12 is provided on the worktable 11. By providing the notch 28, after the Mylar sheet is adsorbed, the operator can peel off the release paper from the notch 28, simplifying the release paper peeling step. At the same time, by providing the pressure plate 12, it is easy for the operator to press the plate heat sink into the placement groove 22, so that the plate heat sink and the Mylar sheet can be tightly attached, improving the bonding quality of the Mylar sheet.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A flexible, fitting fitting fixture, characterized in that, include: A base, on which a worktable is provided; A support base is detachably disposed within the workbench; the support base has a downwardly recessed placement groove and an upwardly protruding arc-shaped structure; the arc-shaped structure is disposed on the top surface of the support base; the placement groove is disposed on the top surface of the support base, and the arc-shaped structure is located outside the placement groove, for placing Mylar sheets; An adsorption mechanism is provided, comprising a first adsorption component and a second adsorption component; the first adsorption component is disposed within the workbench, and the second adsorption component is disposed within the support base; the first adsorption component and the second adsorption component are used for adsorbing Mylar tablets; the first adsorption component and the second adsorption component are connected in communication. The arc-shaped structure has a central protrusion, the height of which is higher than the top surface of the workbench; the two ends of the bottom of the arc-shaped structure are flush with the top surface of the workbench.

2. The flexible bonding fixture according to claim 1, characterized in that, The placement slot is provided with a first positioning post and a second positioning post; both the first positioning post and the second positioning post are configured in two groups; the two groups of first positioning posts are located on the left and right sides of the two corners of the placement slot, and the two groups of second positioning posts are located on the other two corners of the placement slot; the first positioning post and the second positioning post are distributed vertically on the placement slot.

3. The flexible bonding fixture according to claim 2, characterized in that, The outer diameter of the first positioning post is smaller than the outer diameter of the second positioning post.

4. The flexible bonding fixture according to claim 3, characterized in that, The support base is provided with two sets of through holes; the two sets of through holes are distributed on the left and right sides of the arc-shaped structure, and the through holes penetrate the arc-shaped structure.

5. The flexible bonding fixture according to claim 4, characterized in that, Both the support base and the arc-shaped structure are made of soft materials; the support base and the arc-shaped structure are integrally formed.

6. The flexible bonding fixture according to claim 1, characterized in that, The first adsorption component includes a first adsorption hole and a second adsorption hole; the first adsorption hole is located in the middle of the worktable; the second adsorption hole is located on the worktable and is located outside the first adsorption hole. The second adsorption component includes a third adsorption hole and a fourth adsorption hole; the third adsorption hole is located in the middle of the support base; the fourth adsorption hole is located on the support base and is located outside the third adsorption hole.

7. The flexible bonding fixture according to claim 6, characterized in that, The inner diameter of the first adsorption pore is smaller than the inner diameter of the second adsorption pore; the inner diameter of the third adsorption pore is smaller than the inner diameter of the fourth adsorption pore; the first adsorption pore is connected to the third adsorption pore, and the second adsorption pore is connected to the third adsorption pore.

8. The flexible bonding fixture according to claim 7, characterized in that, The adsorption mechanism includes multiple sets of partitions and multiple sets of support columns; the multiple sets of partitions are staggered between the worktable and the base; the multiple sets of support columns are located between the worktable and the base, and are situated outside the partitions; a flow channel for gas flow is formed between the multiple sets of partitions and the multiple sets of support columns, and the flow channel is respectively connected to the first adsorption hole and the second adsorption hole; an air inlet and an air outlet are provided between the flow channel and the base.

9. The flexible bonding fixture according to claim 1, characterized in that, The placement slot is provided with four sets of return springs; the four sets of return springs are symmetrically distributed in pairs in the placement slot; the return springs are provided with mounting holes between them and the placement slot.

10. The flexible bonding fixture according to claim 9, characterized in that, The placement slot has a downward recessed notch at one corner; the worktable is equipped with a pressure plate.