Sandwich foam structure with foam discharging function

Abstract

The embodiment of the utility model belongs to the technical field of foam rubber. The utility model further relates to a sandwich foam structure with the foam discharging function, the sandwich foam structure comprises a foam sandwich, the two sides of the foam sandwich are both bonded with the double-sided adhesive main bodies, the two double-sided adhesive main bodies are both provided with the exhaust parts, and the exhaust parts are used for discharging gas when the double-sided adhesive main bodies are bonded with a target object. The exhaust part is arranged on the double-sided adhesive main body and used for exhausting gas when the double-sided adhesive main body and the target object are adhered, that is, an effective exhaust channel is provided for the gas in the closed area in the adhering process, so that the bulging phenomenon is reduced, the appearance quality of a product is remarkably improved, and due to the fact that the gas is effectively exhausted, the product quality is improved. Therefore, the touch screen and the client shell are attached more tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of foam adhesives, and more specifically, to a sandwich foam structure with a bubble discharging function. Background Art

[0002] With the rapid progress of technology and the increasing demands of consumers, as an important interface for human-computer interaction, the application field of touch screen technology has been continuously expanding and has become a standard feature of modern electronic products. From smart phones, tablets to in-vehicle entertainment systems, smart home control terminals, and even industrial automation equipment, the wide application of touch screens has greatly improved the convenience, interactivity, and intelligence level of products. In the production and manufacturing process of touch screens, the bonding quality between the touch screen and the customer's case is directly related to the final performance and user experience of the product. To achieve a tight connection in this crucial link, the industry generally uses double-sided foam tape as the bonding material. The double-sided foam tape effectively protects the touch screen from external impacts and ensures a seamless connection between the customer's case and the touch screen with its good cushioning, sealing, and adhesion properties.

[0003] However, with the increasing complexity of product design and the continuous improvement of consumers' quality requirements, the challenges faced by the traditional double-sided foam tape bonding method are becoming increasingly prominent. Especially in the application of wide-width double-sided foam tape, since it is difficult to completely discharge air during the bonding process, bubbles or bulges often form between the foam and the double-sided tape. These bulges not only damage the aesthetic appearance of the product but may also affect the sensitivity, response speed of the touch screen, as well as the overall waterproof and dustproof performance. More seriously, the long-existing bulges may also cause the connection between the touch screen and the customer's case to become loose, thereby affecting the service life and reliability of the product. Therefore, we have made improvements and proposed a sandwich foam structure with a bubble discharging function. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is that it is difficult to completely discharge air during the bonding process of double-sided foam tape, and bubbles or bulges often form between the foam and the double-sided tape. These bulges not only damage the aesthetic appearance of the product but may also affect the performance of the touch screen.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions:

[0006] A sandwich foam structure with a bubble-removing function, comprising: a foam sandwich, with double-sided adhesive bodies bonded to both sides of the foam sandwich, and exhaust components are arranged on both double-sided adhesive bodies, and the exhaust components are used for discharging gas when the double-sided adhesive bodies are pasted to the target object. In this application, by arranging exhaust components on the double-sided adhesive bodies, which are used for discharging gas when the double-sided adhesive bodies are pasted to the target object, an effective discharge channel is provided for the gas in the closed area during the fitting process, thereby reducing the occurrence of bulging phenomena and significantly improving the appearance quality of the product. Since the gas is effectively exhausted, the fitting between the touch screen and the client case is closer.

[0007] As an improved mode of the present utility model, the exhaust component includes a plurality of exhaust ports, and the plurality of exhaust ports are penetratingly opened on the double-sided adhesive body.

[0008] As an improved mode of the present utility model, the exhaust component includes a plurality of exhaust grooves, the plurality of exhaust grooves are opened on the surface of the double-sided adhesive body away from the foam sandwich, and communication holes are opened on the inner wall of the exhaust groove close to the double-sided adhesive body.

[0009] As an improved mode of the present utility model, a first protective component is arranged on the side of one of the double-sided adhesive bodies away from the foam sandwich, and a second protective component is arranged on the side of the other double-sided adhesive body away from the foam sandwich.

[0010] As an improved mode of the present utility model, the first protective component and the second protective component are used for protecting the mutually remote sides of the two double-sided adhesive bodies.

[0011] As an improved mode of the present utility model, the first protective component includes a first release film, the first release film is attached to one of the double-sided adhesive bodies, and a first tearing handle is fixedly connected to one side of the first release film.

[0012] As an improved mode of the present utility model, the second protective component includes a second release film, the second release film is attached to the other double-sided adhesive body, and a second tearing handle is fixedly connected to one side of the second release film.

[0013] As an improved mode of the present utility model, the second protective component includes a third release film, and the third release film is attached to the other double-sided adhesive body.

[0014] As an improved mode of the present utility model, the second protective component further includes a fourth release film, the fourth release film is located on one side of the third release film, and the fourth release film is also attached to the other double-sided adhesive body.

[0015] As an improved form of the present utility model, a third tearing handle is fixedly connected to one side of the third release film away from the fourth release film, and a fourth tearing handle is fixedly connected to one side of the fourth release film away from the third tearing handle.

[0016] Compared with the prior art, the embodiments of the present utility model mainly have the following beneficial effects:

[0017] To solve the problem that it is difficult to completely discharge air during the process of double-sided bonding of foam, which often forms bubbles or bulges between the foam and the double-sided adhesive. These bulges not only damage the aesthetic appearance of the product but may also affect the performance of the touch screen. In this application, an exhaust member is provided on the double-sided adhesive main body. The exhaust member is used for discharging gas when the double-sided adhesive main body is pasted to the target object, that is, it provides an effective discharge channel for the gas in the closed area during the bonding process, thereby reducing the occurrence of bulging phenomena and significantly improving the appearance quality of the product. Since the gas is effectively discharged, the bonding between the touch screen and the client casing is closer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a sandwich foam structure with a bubble-removing function provided by this application;

[0019] Figure 2 It is a schematic structural diagram of the double-sided adhesive main body of a sandwich foam structure with a bubble-removing function provided by this application;

[0020] Figure 3 It is a schematic structural diagram of the exhaust port of a sandwich foam structure with a bubble-removing function provided by this application;

[0021] Figure 4 It is a schematic structural diagram of the exhaust port of a sandwich foam structure with a bubble-removing function provided by this application;

[0022] Figure 5 It is a schematic structural diagram of the exhaust groove and the communication hole of a sandwich foam structure with a bubble-removing function provided by this application;

[0023] Figure 6 It is a schematic structural diagram of the third release film and the fourth release film of a sandwich foam structure with a bubble-removing function provided by this application.

[0024] Reference numerals in the figures:

[0025] 1. Foam sandwich; 2. Double-sided adhesive main body; 3. Exhaust port; 4. Exhaust groove; 5. Communication hole; 6. First release film; 601. First tearing handle; 7. Second release film; 701. Second tearing handle; 8. Third release film; 801. Third tearing handle; 803. Fourth release film; 804. Fourth tearing handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The mention of "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this utility model. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] As recorded in the background art, with the increasing complexity of product design and the continuous improvement of consumers' quality requirements, the challenges faced by traditional double-sided adhesive bonding methods for foam are becoming increasingly prominent. Especially in the application of wide-width foam double-sided adhesive, due to the difficulty of completely exhausting air during the bonding process, bubbles or bulges often form between the foam and the double-sided adhesive. These bulges not only damage the aesthetic appearance of the product but may also affect the sensitivity, response speed of the touch screen, as well as the overall waterproof and dustproof performance. More seriously, the long-existing bulges may also cause the connection between the touch screen and the client's casing to become loose, thereby affecting the service life and reliability of the product.

[0028] To solve this technical problem, this utility model provides a sandwich foam structure with a bubble-removing function.

[0029] Specifically, please refer to Figures 1-6 , the sandwich foam structure with a bubble-removing function specifically includes:

[0030] A foam sandwich 1, with double-sided adhesive bodies 2 bonded to both sides of the foam sandwich 1, and exhaust components are provided on both of the two double-sided adhesive bodies 2. The exhaust components are used for exhausting gas when the double-sided adhesive bodies 2 are pasted to the target object.

[0031] For the sandwich foam structure with a bubble-removing function provided by this utility model, in this application, by providing exhaust components on the double-sided adhesive bodies 2, and the exhaust components are used for exhausting gas when the double-sided adhesive bodies 2 are pasted to the target object, it provides an effective exhaust channel for the gas in the closed area during the bonding process, thereby reducing the occurrence of bulging phenomena and significantly improving the appearance quality of the product. Since the gas is effectively exhausted, the bonding between the touch screen and the client's casing is closer.

[0032] To enable those skilled in the art to better understand the solution of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0034] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] Embodiment 1 of the sandwich foam structure with bubble-removing function of the present utility model

[0036] Please refer to Figures 1-6 , the sandwich foam structure with bubble-removing function of the present utility model includes: a foam sandwich 1, both sides of the foam sandwich 1 are bonded with double-sided adhesive bodies 2, and an exhaust member is provided on each of the two double-sided adhesive bodies 2. The exhaust member is used for exhausting gas when the double-sided adhesive body 2 is pasted to the target object. In this application, by providing an exhaust member on the double-sided adhesive body 2, the exhaust member is used for exhausting gas when the double-sided adhesive body 2 is pasted to the target object, which provides an effective exhaust channel for the gas in the closed area during the fitting process, thereby reducing the occurrence of bulging phenomena and significantly improving the appearance quality of the product. Since the gas is effectively exhausted, the fitting between the touch screen and the client housing is closer.

[0037] Embodiment 2 of the sandwich foam structure with bubble-removing function of the present utility model

[0038] Furthermore, for the sandwich foam structure with bubble-removing function of the present utility model, as Figures 1-4 shown, the exhaust member includes a plurality of exhaust openings 3. The plurality of exhaust openings 3 are throughly opened on the double-sided adhesive body 2, and the opening depth of the exhaust openings 3 is the same as the thickness of the double-sided adhesive body 2, that is, the exhaust openings 3 are throughly opened. Such a setting divides the double-sided adhesive body 2 into several parts, and the exhaust openings 3 form an exhaust channel between the several parts of the double-sided adhesive body 2. The air generated during the fitting process can be discharged to the outside through the exhaust openings 3 to reduce the occurrence of bulging during the pasting process.

[0039] Embodiment 3 of the sandwich foam structure with bubble-removing function of the present utility model

[0040] Furthermore, for the sandwich foam structure with bubble-removing function of the present utility model, as Figure 5As shown, the exhaust member includes a plurality of exhaust grooves 4, which are opened on the side of the double-sided adhesive body 2 away from the foam sandwich 1. A communication hole 5 is opened on the inner wall of the exhaust groove 4 close to the double-sided adhesive body 2. The depth of the exhaust groove 4 is less than the thickness of the double-sided adhesive body 2. That is, although the exhaust groove 4 is opened on the double-sided adhesive body 2, a single double-sided adhesive body 2 is still integral. The setting of the communication hole 5 realizes the communication between the exhaust groove 4 and the foam sandwich 1, and the air generated during the fitting process can be discharged from the exhaust groove 4 to the outside, so as to reduce the occurrence of bulges during the pasting process.

[0041] Embodiment Four of the Sandwich Foam Structure with Bubble Discharging Function of the Present Utility Model

[0042] Furthermore, for the sandwich foam structure with bubble discharging function of the present utility model, as Figure 1 shown, a first protective member is provided on the side of one double-sided adhesive body 2 away from the foam sandwich 1, and a second protective member is provided on the side of the other double-sided adhesive body 2 away from the foam sandwich 1, reducing the situation that the adhesiveness decreases due to the influence of dust in the external environment on the two double-sided adhesive bodies 2 before pasting and using.

[0043] Furthermore, as Figure 1 shown, the first protective member and the second protective member are used for protecting the sides of the two double-sided adhesive bodies 2 away from each other. Through the protection of the two double-sided adhesive bodies 2 by the first protective member and the second protective member, the situation that the adhesiveness decreases due to the influence of dust in the external environment on the two double-sided adhesive bodies 2 before pasting and using can be reduced.

[0044] Furthermore, as Figure 1 shown, the first protective member includes a first release film 6, the first release film 6 is attached to one double-sided adhesive body 2, and a first tearing handle 601 is fixedly connected to one side of the first release film 6. The setting of the first tearing handle 601 can facilitate tearing the first release film 6 from the double-sided adhesive body 2.

[0045] Embodiment Five of the Sandwich Foam Structure with Bubble Discharging Function of the Present Utility Model

[0046] Furthermore, for the sandwich foam structure with bubble discharging function of the present utility model, as Figure 1 shown, the second protective member includes a second release film 7, the second release film 7 is attached to the other double-sided adhesive body 2, and a second tearing handle 701 is fixedly connected to one side of the second release film 7. The setting of the second tearing handle 701 can facilitate tearing the first release film 6 from the double-sided adhesive body 2.

[0047] During use, first tear off the first release film 6 and the second release film 7, and then bond the two double-sided adhesive bodies 2 to two target objects together.

[0048] Embodiment Six of the Sandwich Foam Structure with Bubble Discharging Function of the Present Utility Model

[0049] Furthermore, for the sandwich foam structure with bubble discharging function of the present utility model, as Figure 6 shown, the second protective member includes a third release film 8, and the third release film 8 is adhered to another double-sided adhesive body 2, and the third release film 8 only covers a part of the double-sided adhesive body 2.

[0050] Furthermore, as Figure 6 shown, the second protective member further includes a fourth release film 803. The fourth release film 803 is located on one side of the third release film 8, and the fourth release film 803 is also adhered to another double-sided adhesive body 2. The third release film 8 and the fourth release film 803 cooperate with each other to protect the double-sided adhesive body 2 at the opposite position. When pasting, first tear off the fourth release film 803 to expose a part of this double-sided adhesive body 2. When the double-sided adhesive body 2 is accurately aligned and pasted, then tear off the third release film 8. Such a setting can reduce the situation that other parts of the double-sided adhesive body 2 stick to the corresponding object during the alignment process and affect the alignment.

[0051] Furthermore, as Figure 6 shown, a third tearing handle 801 is fixedly connected to the side of the third release film 8 away from the fourth release film 803, and a fourth tearing handle 804 is fixedly connected to the side of the fourth release film 803 away from the third tearing handle 801. The setting of the third tearing handle 801 can facilitate tearing off the third release film 8 from the double-sided adhesive body 2, and the setting of the fourth tearing handle 804 can facilitate tearing off the fourth release film 803 from the double-sided adhesive body 2.

[0052] During use, first pull the fourth tearing handle 804 to tear off the fourth release film 803, then align and adhere the exposed double-sided adhesive body 2 with the corresponding component. After accurate alignment, pull the third tearing handle 801 to tear off the third release film 8, then integrally adhere the corresponding double-sided adhesive body 2 with the corresponding component. After the adhesion is completed, tear off the first release film 6, and then adhere the corresponding component with this double-sided adhesive body 2.

[0053] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. The preferred embodiments of the present utility model are shown in the accompanying drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, is similarly within the scope of the patent protection of the present utility model.

Claims

1. A sandwich foam structure with a bubble discharge function, characterized in that: include: A foam core (1), wherein both sides of the foam core (1) are bonded with a double-sided adhesive body (2), and both double-sided adhesive bodies (2) are provided with exhaust components, the exhaust components being used to discharge gas when the double-sided adhesive body (2) is bonded to a target object; The exhaust member comprises a plurality of exhaust grooves (4), wherein the plurality of exhaust grooves (4) are formed on a side of the double-sided adhesive body (2) away from the foam core (1), and a connecting hole (5) is formed on the inner wall of the exhaust groove (4) on a side close to the double-sided adhesive body (2).

2. The sandwich foam structure with bubble removal function according to claim 1, characterized in that: A first protective piece is provided on a side of one of the double-sided adhesive bodies (2) away from the foam core (1), and a second protective piece is provided on a side of the other double-sided adhesive body (2) away from the foam core (1).

3. The sandwich foam structure with bubble removal function according to claim 2, characterized in that: The first protective piece and the second protective piece are used to protect the two double-sided adhesive bodies (2) from one side facing away from each other.

4. The sandwich foam structure with bubble removal function according to claim 2, characterized in that: The first protective component comprises a first release film (6), the first release film (6) being attached to one of the double-sided adhesive bodies (2), and a first tearing handle (601) being fixedly connected to one side of the first release film (6).

5. The sandwich foam structure with bubble removal function according to claim 2, characterized in that: The second protective member comprises a second release film (7), the second release film (7) being attached to the other double-sided adhesive body (2), and a second tearing handle (701) is fixedly connected to one side of the second release film (7).

6. The sandwich foam structure with bubble removal function according to claim 2, characterized in that: The second protective member comprises a third release film (8), and the third release film (8) is bonded to another double-sided adhesive body (2).

7. The sandwich foam structure with bubble removal function according to claim 6, characterized in that: The second protective member further comprises a fourth release film (803), wherein the fourth release film (803) is located on one side of the third release film (8), and the fourth release film (803) is also attached to another double-sided adhesive body (2).

8. The sandwich foam structure with bubble removal function according to claim 7, characterized in that: A third tear-off handle (801) is fixedly connected to a side of the third release film (8) away from the fourth release film (803), and a fourth tear-off handle (804) is fixedly connected to a side of the fourth release film (803) away from the third tear-off handle (801).

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