Front camera fixing double faced adhesive tape

Abstract

The utility model discloses a front camera fixing double-faced adhesive tape, which relates to the technical field of double-faced adhesive tapes and comprises a base material layer and two adhesive layers positioned on two sides of the base material layer, and release films are arranged on the outer sides of the two adhesive layers. The two sides of the base material layer are further provided with vibration reduction function sandwich cores which are divided into an upper layer and a lower layer, and the vibration reduction function sandwich cores are clamped between the base material layer and the rubberizing layer and used for absorbing vibration energy; the vibration reduction function sandwich comprises an energy absorption inner core layer attached to the base material layer, a vibration reduction outer layer is arranged on the energy absorption inner core layer, the energy absorption inner core layer and the vibration reduction outer layer form the vibration reduction and energy absorption dual functions, the vibration reduction outer layer made of PE foam and the energy absorption inner core layer made of EVA foam in the vibration reduction function sandwich work cooperatively, and the vibration reduction and energy absorption functions are achieved. Energy can be effectively absorbed after preliminary buffering and vibration reduction, vibration is reduced, vibration energy is further attenuated, double energy absorption and vibration reduction are achieved, the amplitude of vibration transmitted to a front camera is greatly reduced, and the overall vibration reduction performance is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of double-sided adhesive technology, and in particular to a front-facing fixed double-sided adhesive. Background Technology

[0002] Double-sided tape is a roll of adhesive tape made by uniformly coating an elastomer-type pressure-sensitive adhesive or a resin-type pressure-sensitive adhesive onto a paper, cloth, or plastic film substrate. It consists of three parts: the substrate, the adhesive, and the release paper (also called silicone paper). Currently, double-sided tape is increasingly used in the fields of construction, decoration, and electronics for bonding decorative materials and components. Compared to traditional all-purpose adhesive spraying, it makes the process simpler, cleaner, and faster. For example, using double-sided tape inside some camera modules makes module assembly more convenient and faster, greatly improving assembly efficiency.

[0003] According to the Chinese authorized utility model patent "Shockproof and Buffering Foam Double-Sided Adhesive" with announcement number CN216919102U, "existing double-sided adhesives have weak shockproof and buffering capabilities in their internal materials, often resulting in damage to the adhered objects after use. In addition, double-sided adhesives are easily stretched and deformed during application, failing to provide good adhesive protection. After application, double-sided adhesives need to be fixed for a long time, which makes them susceptible to water ingress and corrosion, thus reducing their lifespan."

[0004] In conclusion, existing double-sided adhesive tapes lack effective shock absorption capabilities. For products like camera modules, which require high precision, this lack of effective vibration damping directly impacts the reliability, stability, and user experience of the camera module.

[0005] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a front-facing fixed double-sided adhesive, comprising a substrate layer and two adhesive layers located on both sides of the substrate layer, wherein a release film is provided on the outer side of both adhesive layers;

[0008] The substrate layer is also provided with two layers of vibration damping cores on both sides. The vibration damping cores are sandwiched between the substrate layer and the adhesive layer to absorb vibration energy.

[0009] The vibration-damping sandwich core includes an energy-absorbing inner core layer that is bonded to the substrate layer, and a vibration-damping outer layer is provided on the energy-absorbing inner core layer. The energy-absorbing inner core layer and the vibration-damping outer layer together form a dual function of vibration damping and energy absorption.

[0010] As a further embodiment of this utility model: multiple trapezoidal blocks are formed on the energy-absorbing inner core layer, and the narrow side of the trapezoidal blocks is embedded into the vibration-damping outer layer.

[0011] As a further embodiment of this utility model: the trapezoidal blocks are evenly distributed in multiple rows along the length of the energy-absorbing inner core layer, and the position of each row of trapezoidal blocks is staggered from that of the adjacent trapezoidal blocks.

[0012] As a further embodiment of this utility model: the vibration-damping outer layer has a biomimetic honeycomb-shaped pore structure.

[0013] As a further embodiment of this utility model, the trapezoidal block is provided with ventilation holes.

[0014] As a further embodiment of this utility model, the energy-absorbing inner core layer is made of EVA foam.

[0015] As a further embodiment of this utility model, the vibration-damping outer layer is made of PE foam.

[0016] Compared with the existing technology, the beneficial effects of this technical solution are as follows: When this double-sided adhesive is applied to the front camera shell in the camera module, the vibration-damping outer layer in the vibration-damping core is made of PE foam, which has good flexibility and elasticity. When subjected to external impact, it can initially buffer and dampen the vibration through its own elastic deformation and consume some of the vibration energy. Then, the remaining impact energy is transferred to the energy-absorbing inner core layer, which is made of EVA foam. The energy-absorbing inner core layer can effectively absorb the impact energy, reduce vibration, and further attenuate the vibration energy. Working together with the vibration-damping outer layer, it achieves dual energy absorption and vibration reduction, significantly reducing the amplitude of vibration transmitted to the front camera and significantly improving the overall vibration reduction performance.

[0017] Designing a biomimetic honeycomb-shaped bubble structure allows air to flow within the bubbles in the outer damping layer, further consuming energy and thus effectively improving the damping effect. In addition, the biomimetic honeycomb structure can disperse stress, thereby dispersing the energy received by the whole structure.

[0018] When subjected to force, the trapezoidal blocks can absorb and disperse the impact force through their own deformation, providing a more complex force path. This allows the energy-absorbing inner core layer to better adapt to forces in different directions during compression, thereby enhancing the buffering effect and more effectively protecting the buffered object. Increasing the contact area between the energy-absorbing inner core layer and the vibration-damping outer layer not only makes the energy-absorbing inner core layer and the vibration-damping outer layer closer together, but also improves the energy absorption efficiency.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the distribution of trapezoidal blocks on the energy-absorbing inner core layer of this utility model;

[0024] The corresponding labels in the attached diagram are explained as follows:

[0025] 1. Substrate layer; 2. Adhesive layer; 3. Release film; 4. Vibration-damping core; 5. Energy-absorbing inner core layer; 6. Vibration-damping outer layer; 7. Trapezoidal block; 8. Ventilation holes. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 A front-facing double-sided adhesive includes a substrate layer 1 and two adhesive layers 2 located on both sides of the substrate layer 1, with a release film 3 provided on the outer side of each of the two adhesive layers 2.

[0028] The substrate layer 1 is also provided with two vibration damping cores 4, which are divided into upper and lower layers. The vibration damping cores 4 are sandwiched between the substrate layer 1 and the adhesive layer 2 to absorb vibration energy.

[0029] The vibration damping core 4 includes an energy-absorbing inner core layer 5 that is bonded to the substrate layer 1. The energy-absorbing inner core layer 5 is provided with a vibration-damping outer layer 6. The energy-absorbing inner core layer 5 and the vibration-damping outer layer 6 together form a dual function of vibration damping and energy absorption.

[0030] Specifically, when using it, peel off the outer release film 3 and use the adhesive layers 2 on both sides to bond the two parts together.

[0031] Among them, the release film 3 is made of ordinary silicone paper, which is low in cost and easy to obtain. Its main function is to prevent the adhesive layer from being contaminated or sticking to other items when the double-sided tape is not in use. It can be easily peeled off when in use.

[0032] When this double-sided adhesive is applied to the front camera housing in the camera module, the vibration-damping outer layer 6 is made of PE foam, which has good flexibility and elasticity. When subjected to external impact, it can initially buffer and reduce vibration through its own elastic deformation and consume some vibration energy. Then, the remaining impact energy is transferred to the energy-absorbing inner core layer 5, which is made of EVA foam. The energy-absorbing inner core layer 5 can effectively absorb impact energy, reduce vibration, and further attenuate vibration energy. Working together with the vibration-damping outer layer 6, it achieves dual energy absorption and vibration reduction, significantly reducing the amplitude of vibration transmitted to the front camera and significantly improving the overall vibration reduction performance.

[0033] The substrate layer 1 is made of biaxially oriented polypropylene film, which provides necessary support for the entire double-sided adhesive structure and prevents deformation or damage during use. At the same time, its strength characteristics help to disperse vibration stress and work together with the vibration damping core 4 to improve the overall vibration damping effect.

[0034] In some embodiments, the vibration-damping outer layer 6 has a biomimetic honeycomb-shaped pore structure.

[0035] Preferably, the design of the biomimetic honeycomb-shaped bubble structure allows the air inside the damping outer layer 6 to flow within the bubbles, further consuming energy, thereby effectively improving the damping effect. In addition, the biomimetic honeycomb-shaped structure can disperse stress, thus dispersing the energy received by the whole.

[0036] In some embodiments, a plurality of trapezoidal blocks 7 are formed on the energy-absorbing inner core layer 5, and the narrow side of the trapezoidal blocks 7 is embedded in the vibration-damping outer layer 6.

[0037] Specifically, when subjected to external impact, the trapezoidal block 7 can absorb and disperse the impact force through its own deformation, providing a more complex force path, so that the energy-absorbing inner core layer 5 can better adapt to forces in different directions during compression, thereby enhancing the buffering effect and more effectively protecting the buffered object; increasing the contact area between the energy-absorbing inner core layer 5 and the vibration-damping outer layer 6 can not only make the energy-absorbing inner core layer 5 and the vibration-damping outer layer 6 more tightly connected, but also improve the energy absorption efficiency.

[0038] In some embodiments, the trapezoidal blocks 7 are evenly distributed in multiple rows along the length of the energy-absorbing inner core layer 5, and the position of each row of trapezoidal blocks 7 is staggered from that of adjacent trapezoidal blocks 7.

[0039] Specifically, this design allows for full utilization of the surface space of the energy-absorbing inner core layer 5 and makes the overall stress distribution more uniform, thereby improving the stability of the entire structure.

[0040] In some embodiments, the trapezoidal block 7 is provided with ventilation holes 8.

[0041] Specifically, ventilation holes 8 are opened on the trapezoidal block 7, which can reduce the weight of the material and make the double-sided tape lighter overall;

[0042] On the other hand, when subjected to impact, the internal vent 8 will deform and be squeezed, which can not only disperse the impact force, but also dissipate the heat generated during the energy absorption process. The trapezoidal block 7 is embedded in the vibration damping outer layer 6, so that the air flow path of the vent 8 is connected to the foam structure of the vibration damping outer layer 6, thereby allowing the absorbed energy to be discharged, further improving the effect of the energy absorption buffer structure.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A front-facing camera fixing double-sided adhesive, characterized in that, It includes a substrate layer (1) and two adhesive layers (2) located on both sides of the substrate layer (1), and a release film (3) is provided on the outer side of both adhesive layers (2); The substrate layer (1) is also provided with two layers of vibration damping core (4) on both sides. The vibration damping core (4) is sandwiched between the substrate layer (1) and the adhesive layer (2) to absorb vibration energy. The vibration damping core (4) includes an energy-absorbing inner core layer (5) that is bonded to the substrate layer (1). The energy-absorbing inner core layer (5) is provided with a vibration-damping outer layer (6). The energy-absorbing inner core layer (5) and the vibration-damping outer layer (6) together form a dual function of vibration damping and energy absorption.

2. The front-facing camera fixing double-sided adhesive according to claim 1, characterized in that, Multiple trapezoidal blocks (7) are formed on the energy-absorbing inner core layer (5), and the narrow side of the trapezoidal blocks (7) is embedded in the vibration-damping outer layer (6).

3. The front-facing camera fixing double-sided adhesive according to claim 2, characterized in that, The trapezoidal blocks (7) are evenly distributed in multiple rows along the length of the energy-absorbing inner core layer (5), and the position of each row of trapezoidal blocks (7) is staggered from the adjacent trapezoidal blocks (7).

4. The front-facing camera fixing double-sided adhesive according to claim 3, characterized in that, The vibration-damping outer layer (6) has a biomimetic honeycomb-shaped pore structure.

5. The front-facing camera fixing double-sided adhesive according to claim 4, characterized in that, The trapezoidal block (7) has ventilation holes (8).

6. The front-facing camera fixing double-sided adhesive according to any one of claims 1-5, characterized in that, The energy-absorbing inner core layer (5) is made of EVA foam.

7. The front-facing camera fixing double-sided adhesive according to claim 6, characterized in that, The vibration-damping outer layer (6) is made of PE foam.

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