Gasket and tray

Abstract

The gasket comprises a gasket body, a plurality of connecting side edges are arranged on the horizontal plane of the gasket body in the circumferential direction, a first cutting side edge is arranged between every two adjacent connecting side edges of the gasket body, and the first cutting side edge and the two adjacent connecting side edges are relatively inclined on the horizontal plane. According to the gasket, during stamping operation, the stress degree of the main pressing head on all parts of the product can be adjusted, so that the stress of the product in all areas in the tray is uniform, and the normal stamping operation effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of pallet assembly technology, and in particular to a gasket and a pallet. Background Technology

[0002] Anisotropic Conductive Film (ACF) trays are the most important receiving components in the ACF assembly process. After placing the product on the ACF tray, the tray is then placed in a stamping machine for stamping, which crushes the ACF conductive particles embedded in the product. However, during the stamping process, the center of force exerted by the main ACF pressure head on the product is not at the same position as the center of force exerted by the buffer pad inside the original ACF tray. This results in uneven force distribution on the product by the main ACF pressure head, and some ACF conductive particles are not crushed after stamping, leading to test failures. Therefore, there is an urgent need for a pad that can evenly distribute the pressure of the main ACF pressure head on the product. Utility Model Content

[0003] The purpose of this utility model is to provide a gasket and tray to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] Firstly, the solution to the technical problem of this utility model is:

[0005] A gasket comprising:

[0006] A gasket body has multiple connecting sides arranged circumferentially in a horizontal plane. The gasket body has a first cutting side between two adjacent connecting sides. The first cutting side is inclined relative to the two adjacent connecting sides in the horizontal plane. The gasket body has a second cutting side on the side opposite to the first cutting side. The second cutting side is located between two adjacent connecting sides and is inclined relative to the two adjacent connecting sides in the horizontal plane.

[0007] This technical solution has at least the following beneficial effects: First, compared with existing gaskets, the gasket in this application cuts the original gasket along the trajectory of the first cutting side, breaking the symmetry of the original gasket and causing the pressure transmission path during stamping to shift directionally. This makes the center of the force exerted by the main pressure head on the product move closer to the center of the force on the gasket, thereby making the force exerted by the main pressure head on the product more evenly distributed. This results in the crushing of conductive particles at predetermined positions within the product, forming a stable conductive channel within the product. This solution only requires cutting the gasket at the bottom of the product to achieve the effect of uniform force on the product and improve the product yield. It is simple to operate and easy to implement. Furthermore, by cutting the gasket along the trajectory of the second cutting side on one side relative to the first cutting side, a stable pressure balance system is formed to balance the pressure of the main pressure head on the product. In particular, when the two cutting sides are symmetrically distributed, they can match the shape of the stamping head, further optimizing the pressure situation in different areas.

[0008] As a further improvement to the above technical solution, the projections of both the first and second cutting sides onto the horizontal plane are straight lines. Cutting with two straight sides makes the gasket easier to process, ensuring processing accuracy. At the same time, compared to curves, it can provide a more stable pressure transition and avoid unexpected changes caused by curved shapes.

[0009] As a further improvement to the above technical solution, the angle formed between the first cutting side and one of the adjacent connecting sides is between 39 degrees and 41 degrees, and the angle formed between the first cutting side and the other adjacent connecting side is between 49 degrees and 51 degrees.

[0010] By setting the angle variation between the first cutting side and the two adjacent connecting sides, a better geometry is formed, making the tilt angle at the cutting point more in line with the pressure distribution requirements, thus preventing conductive particles from being crushed.

[0011] As a further improvement to the above technical solution, the angle formed between the second cut side and one of the adjacent connecting sides ranges from 39 degrees to 41 degrees, and the angle formed between the second cut side and the other adjacent connecting side ranges from 49 degrees to 51 degrees. By precisely controlling the angle of the second cut side, the stress on the gasket on that side is adjusted, and it works together with the first cut side to improve the overall uniformity of stress on the gasket.

[0012] As a further improvement to the above technical solution, the area enclosed by the straight line containing the first cut side and the straight lines containing the two adjacent connecting sides is smaller than the area enclosed by the straight line containing the second cut side and the straight lines containing the two adjacent connecting sides. By cutting different sized areas on the gasket, different adjustments are made to the first and second cut sides to meet the pressure adjustment needs of different areas of the original gasket, so that the forces acting on various parts of the product tend to be balanced.

[0013] As a further improvement to the above technical solution, the gasket body is provided with a positioning hole and a mounting hole. The mounting hole is located in the middle of the gasket body, and the positioning hole is located on the side of the gasket body away from the mounting hole. When the gasket is installed on a tray for carrying products, the positioning rod on the tray passes through the positioning hole, thereby fixing the gasket on the tray, improving the stability of the gasket on the tray, making it less prone to movement, and improving the stability of the main pressure head during operation, corresponding to the preset pressure area on the gasket. Furthermore, the mounting hole is used to initially position the product placed on the gasket, reducing product offset on the gasket and avoiding uneven pressure caused by relative offset, thus ensuring the stamping effect.

[0014] As a further improvement to the above technical solution, the gasket body is provided with a guide portion, and the first cutting side and the second cutting side are both located at the end of the gasket body away from the guide portion.

[0015] By adopting the above technical solution, the guide can display the installation position of the gasket body, making it easier for engineers to use the gasket quickly.

[0016] In a second embodiment, this application provides a tray comprising a pad as described in the first aspect and a tray body. The tray body has an installation cavity, the pad is installed in the installation cavity, and a limiting structure is also provided in the installation cavity. The limiting structure has a limiting element that can move within the installation cavity, and a limiting space is formed between the limiting element and the side wall of the installation cavity. The pad is located at the bottom of the limiting space.

[0017] Through the above technical solution, the gasket body is set in the tray body. After the product is placed in the limiting space, the product is then stamped, so that the gasket body can stably and optimally distribute the force on the product in the limiting space, so that the conductive particles in the product are crushed evenly.

[0018] As a further improvement to the above technical solution, the gasket is provided with a first bearing plate on the side close to the limiting space and a second bearing plate on the side away from the limiting space.

[0019] Because the gasket body is adhesive, if the product comes into direct contact with the gasket body during the production process, the product will stick to the gasket body. The smooth first and second support plates protect the gasket body and reduce the interference of the gasket body with the product.

[0020] As a further improvement to the above technical solution, a first cutting space is formed between the first cutting side, the first bearing plate and the second bearing plate, and a second cutting space is formed between the second cutting side, the first bearing plate and the second bearing plate.

[0021] By adopting the above technical solution, the first and second bearing plates seal the gap in the gasket body within the mounting cavity, thereby improving the stability of the product within the confined space. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the gasket of this utility model;

[0024] Figure 2 This is a top view of the gasket of this utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure of the tray body of this utility model;

[0026] Figure 4 This is a partial structural diagram of the pallet body of this utility model after the top cover of the installation cavity has been removed;

[0027] Figure 5 This is a top view of the internal structure of the tray body of this utility model;

[0028] Figure 6 This is an exploded view of the gasket body, the first bearing plate, and the second bearing plate of this utility model.

[0029] Explanation of reference numerals in the attached figures

[0030] 1. Gasket body; 11. Connecting side; 12. Guide part; 2. First cutting side; 3. Second cutting side; 4. Positioning hole; 5. Mounting hole; 6. Tray body; 61. Mounting cavity; 7. Limiting structure; 71. Limiting element; 72. Push plate; 73. Elastic element; 74. Limiting rod; 8. First bearing plate; 9. Second bearing plate. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] ACF assembly is a crucial step in the production of camera modules for electronic devices. In this process, multiple products are placed and secured in a tray, and then the ACF main pressing head vertically presses the products on the tray. During this pressing, the product's substrate and FPC (Flexible Printed Circuit) are... The process involves bonding the substrate and the FPC (Flexible Printed Circuit Board) together, while the main pressure head heats the product, causing the insulating material inside to solidify after the substrate and FPC are pressed together. This blocks the lateral movement of conductive particles, thus forming a stable structure with vertical channels and lateral insulation inside the product. However, in actual production, because the center of force exerted by the main pressure head on the product is not at the same position as the center of force exerted by the pad supporting the product in the ACF tray, the pressure exerted by the main pressure head on various parts of the product is uneven. This results in only blocking some conductive particles within the product and failing to form a complete vertical channel. Therefore, this application provides a pad that can adjust the degree of force exerted by the main pressure head on various parts of the product during the stamping operation, thereby ensuring uniform force on various areas of the product, achieving normal stamping operation results, and reducing the defect rate.

[0036] Firstly, referring to Figure 1 and Figure 2 This application provides a gasket for use in an ACF pallet. The gasket includes a gasket body 1, which has multiple connecting sides 11 arranged circumferentially on a horizontal plane. Specifically, in this embodiment, the gasket body 1 is rectangular and has four connecting sides 11. One of the connecting sides 11 has a guide portion 12. The projection of the stamping head used in the ACF pallet equipped with this gasket on the horizontal plane is C-shaped. The projections of the two ends of the stamping head on the plane of the gasket body 1 are located at the end of the gasket body 1 away from the guide portion 12. A first cutting side 2 is arranged between two adjacent connecting sides 11 at the end of the gasket body 1 away from the guide portion 12. The first cutting side 2 is inclined relative to the two adjacent connecting sides 11 on the horizontal plane.

[0037] As described above, the gasket in this application cuts the original gasket along the extension direction of the first cutting side 2, breaking the symmetry of the original gasket and causing a directional shift in the pressure transmission path during stamping. This causes the center of the force exerted by the main pressure head on the product to move closer to the center of the force on the gasket, thereby further distributing the force on the product between the two. This results in the crushing of conductive particles at predetermined positions within the product, forming a stable conductive channel within the product. This solution only requires cutting the gasket at the bottom of the product to achieve the effect of uniform force distribution on the product and improved product yield. It is simple to operate and easy to implement.

[0038] The existing main pressure head has a C-shaped projection on the horizontal plane. In order to adapt to the C-shaped main pressure head, the pressure at the two ends of the main pressure head is adjusted. The gasket body 1 has a second cutting side 3 at the end away from the guide part 12 and on the other side opposite to the first cutting side 2. The second cutting side 3 is located between the two connecting sides 11. Specifically, in this embodiment, the first cutting side 2, a connecting side 11 and the second cutting side 3 are arranged in sequence. That is, the first cutting side 2 and the second cutting side 3 are located at the two corners of the gasket body 1 away from the guide part 12. The second cutting side 3 is inclined relative to the two adjacent connecting sides 11 on the horizontal plane.

[0039] This scheme uses a method to cut the gasket along the trajectory of the second cutting side 3, forming a stable pressure balance system that balances the pressure of the main pressure head on the product. In particular, when the two cutting sides are symmetrically distributed, they can match the two ends of the stamping head, further optimizing the pressure in different areas.

[0040] The projections of the first cutting side 2 and the second cutting side 3 on the horizontal plane are both straight lines. As can be seen from the above, the original rectangular gasket body 1 is cut by the straight trajectory of the first cutting side 2 and the second cutting side 3. Firstly, cutting by the two straight sides makes the gasket easier to process and ensures the processing accuracy. Secondly, compared with curves, it can provide a more stable pressure transition and avoid unexpected changes caused by the curve shape.

[0041] To better control the pressure adjustment effect on the gasket body 1, engineers conducted simulation analysis and concluded that the stress situation could be further optimized by controlling the included angles between the first cutting side 2 and the second cutting side 3 and the adjacent connecting side 11. Specifically, for the first cutting side 2, the included angle A with one of the adjacent connecting sides 11 is between 39 degrees and 41 degrees, and the included angle B with the other adjacent connecting side 11 is between 49 degrees and 51 degrees. By setting the angle variation between the first cutting side 2 and the two adjacent connecting sides 11, a better geometric shape is formed. With precise angle settings, the pressure brought by the main pressure head can be dispersed along a specific angle, improving the pressure situation in each area and further uniformizing the pressure.

[0042] The angle C between the second cutting side 3 and one of the adjacent connecting sides 11 is between 39 degrees and 41 degrees, and the angle D between the second cutting side 3 and the other adjacent connecting side 11 is between 49 degrees and 51 degrees.

[0043] Specifically, in this embodiment, the first cutting side 2 and the second cutting side 3 are connected to the same side 11 away from the guide portion 12. The angles between the first cutting side 2 and the second cutting side 3 and the connecting side 11 are both 50°. The angle between the first cutting side 2 and another adjacent connecting side 11 away from the connecting side 11 is 40°. The angle between the second cutting side 3 and another adjacent connecting side 11 away from the connecting side 11 is 40°.

[0044] The area enclosed by the straight line containing the first cut side 2 and the straight lines containing the two adjacent connecting sides 11 is smaller than the area enclosed by the straight line containing the second cut side 3 and the straight lines containing the two adjacent connecting sides 11. By cutting different sized areas on the gasket, different adjustments are made to the first cut side 2 and the second cut side 3 to meet the pressure adjustment needs of different areas of the original gasket, so that the forces acting on various parts of the product tend to be balanced.

[0045] As a further preferred embodiment, a positioning pin is provided on the tray, and a positioning hole 4 adapted to the positioning pin is provided on the gasket body 1. In this embodiment, two positioning holes 4 are provided, one of which is located in the guide part 12, and the other positioning hole 4 is located between the first cutting side 2 and the second cutting side 3. The gasket body 1 is placed in the tray, and the positioning pin fixes the gasket body 1 through the positioning hole 4, which improves the stability of the gasket body 1 when it is installed on the tray, makes the gasket body 1 difficult to move, and improves the stability of the main pressure head corresponding to the preset pressure area on the gasket during operation.

[0046] The gasket body 1 is provided with mounting holes 5. The product placed on the gasket is initially positioned through the mounting holes 5, which reduces the product's offset on the gasket, avoids uneven pressure caused by relative offset, and ensures the stamping effect.

[0047] Secondly, embodiments of this application provide a tray, referring to... Figures 3 to 6 It includes a gasket and a tray body 6 as provided in the first aspect. The tray body 6 has an installation cavity 61. The gasket is installed in the installation cavity 61. A limiting structure 7 is also provided in the installation cavity 61. The limiting structure 7 has a limiting element 71 that can move in the installation cavity 61. The end of the limiting element 71 away from the push plate 72 forms a limiting space with the side wall of the installation cavity 61. The gasket is located at the bottom of the limiting space. The gasket is placed in the tray body 6. After the product is placed in the limiting space, the product is stamped so that the gasket can stably and optimally distribute the force on the product in the limiting space, so that the conductive particles in the product are crushed evenly.

[0048] Specifically, the limiting structure 7 includes a push plate 72 and an elastic element 73. The mounting cavity 61 has a placement groove, a limiting groove and a movable groove connected in sequence. The push plate 72 is slidably installed in the limiting channel. The two ends of the push plate 72 extend into the placement groove and the movable groove, respectively. The limiting element 71 is the end of the push plate 72 facing the placement groove. One end of the elastic element 73 is installed in the movable groove and the other end is connected to the push plate 72.

[0049] Furthermore, a push hole is provided in the middle of the push plate 72, through which the entire push plate 72 can be pulled to move within the limiting groove.

[0050] The length of the limiting groove in the horizontal direction is less than the length of the movable groove in the same direction. The push plate 72 is provided with a limiting rod 74 at one end in the movable groove. The limiting rod 74 abuts against the side wall of the placement groove in the horizontal direction, thereby restricting the movement of the push rod.

[0051] The gasket has a first bearing plate 8 on the side close to the limiting space and a second bearing plate 9 on the side away from the limiting space. Because the gasket is sticky, if the product comes into direct contact with the gasket during the production process, the product will stick to the gasket. The smooth first bearing plate 8 and second bearing plate 9 protect the gasket and reduce the interference of the gasket with the product.

[0052] Furthermore, a first cutting space is formed between the first cutting side 2, the first bearing plate 8, and the second bearing plate 9, and a second cutting space is formed between the second cutting side 3, the first bearing plate 8, and the second bearing plate 9. The first bearing plate 8 and the second bearing plate 9 seal the notch portion of the gasket within the mounting cavity 61, improving the stability of the product within the confined space.

[0053] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A gasket, characterized by, The gasket body (1) is provided with a plurality of connecting sides (11) in the circumferential direction in the horizontal plane, and is provided with a first cutting side (2) between two adjacent connecting sides (11), the first cutting side (2) is opposite to the two adjacent connecting sides (11) in the horizontal plane, and is provided with a second cutting side (3) on the side opposite to the first cutting side (2), the second cutting side (3) is located between two adjacent connecting sides (11), and the second cutting side (3) is opposite to the two adjacent connecting sides (11) in the horizontal plane. The projection of the first cutting side (2) and the second cutting side (3) in the horizontal plane is a straight line.

2. A gasket according to claim 1, wherein The included angle between the first cutting side (2) and one of the adjacent connecting sides (11) is 39-41 degrees, and the included angle between the first cutting side (2) and the other of the adjacent connecting sides (11) is 49-51 degrees.

3. A gasket according to claim 2, wherein The included angle between the second cutting side (3) and one of the adjacent connecting sides (11) is 39-41 degrees, and the included angle between the second cutting side (3) and the other of the adjacent connecting sides (11) is 49-51 degrees.

4. A gasket according to claim 2, wherein The area surrounded by the straight line where the first cutting side (2) is located and the straight line where the two adjacent connecting sides (11) are located is smaller than the area surrounded by the straight line where the second cutting side (3) is located and the straight line where the two adjacent connecting sides (11) are located.

5. A gasket according to claim 2, wherein The gasket body (1) is provided with a positioning hole (4) and a mounting hole (5), the mounting hole (5) is located in the middle of the gasket body (1), and the positioning hole (4) is located on the side away from the mounting hole (5) of the gasket body (1).

6. The gasket of claim 1 wherein, The gasket body (1) is provided with a guide part (12), and the first cutting side (2) and the second cutting side (3) are located at one end of the gasket body (1) away from the guide part (12).

7. The gasket of claim 1 wherein, The tray body (6) is provided with a mounting cavity (61), the gasket is mounted in the mounting cavity (61), and the mounting cavity (61) is further provided with a limiting structure (7), the limiting structure (7) has a limiting element (71) capable of moving in the mounting cavity (61), the limiting element (71) and the side wall of the mounting cavity (61) form a limiting space, and the gasket is located at the bottom of the limiting space.

8. A tray comprising a gasket according to any one of claims 1 to 7 and a tray body (6), characterized in that The gasket is provided with a first bearing plate (8) on the side close to the limiting space and a second bearing plate (9) on the side away from the limiting space.

9. A pallet according to claim 8, wherein, The first cutting side (2), the first bearing plate (8) and the second bearing plate (9) form a first cutting space, and the second cutting side (3), the first bearing plate (8) and the second bearing plate (9) form a second cutting space.

10. A pallet according to claim 8, wherein, ​

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