Impact-resistant reinforcing structure of a mobile phone glass cover plate

Abstract

The utility model provides a kind of anti-impact reinforcing structure of mobile phone glass cover plate, it is related to reinforcing structure technical field, including edge middle frame, the inside of edge middle frame is provided with the protective net film woven from glass fiber, the both sides of protective net film are provided with PC film and PI film respectively, the inside of edge middle frame is fixedly installed with anti-impact protective frame.The utility model has the advantages that: protective net film that carries out full-plate protection to glass cover plate is additionally arranged on the edge middle frame of the reinforcing structure of glass cover plate, sharp object close to the reinforcing structure of glass cover plate is blocked using protective net film, the resistance ability of glass cover plate reinforcing structure to the impact of sharp object is enhanced, anti-impact protective frame and limiting strip are arranged in the inside of edge middle frame, the resistance ability of reinforcing structure whole to external force is further enhanced using anti-impact protective frame, it is convenient to enhance the protective performance of reinforcing structure when impacting, the safety of reinforcing structure is further improved.

Description

Technical Field

[0001] This utility model relates to the field of reinforcement structure technology, and in particular to an impact-resistant reinforcement structure for mobile phone glass covers. Background Technology

[0002] Mobile phones, as the primary communication tool, are practically ubiquitous. During phone use, the cover glass serves to store and protect internal electronic components and the inner screen. Common cover glass materials include glass, plastic, or aluminum alloy. In the smartphone manufacturing industry, the phone's glass cover is a core component protecting the screen (such as OLED and LCD screens). It must simultaneously possess high light transmittance (≥92%), touch sensitivity, and impact resistance. By covering the screen surface, it resists external forces such as drops, collisions, and scratches from foreign objects during daily use, directly affecting the phone's appearance integrity and the reliability of its screen functions. As mobile phone screens evolve towards full-screen and curved screen designs, the cover glass size increases (screen-to-body ratio exceeding 90%) and the edges become narrower. This exacerbates stress concentration under external forces, placing increasingly higher demands on the impact resistance of the phone's glass cover.

[0003] However, existing mobile phone glass cover reinforcement structures are not easy to protect against impacts from sharp objects, which can easily lead to damage to the glass cover and result in weak impact resistance. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose an impact-resistant reinforcement structure for mobile phone glass covers to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides an impact-resistant reinforcement structure for a mobile phone glass cover, including a buffer transition layer for fitting and protecting the glass cover. The surface of the buffer transition layer is provided with a bearing layer to withstand impact forces, the surface of the bearing layer is provided with a reinforcing layer for protection, and the surface of the reinforcing layer is provided with an edge frame for covering and protecting it. The inside of the edge frame is provided with a protective mesh film woven from glass fiber. PC film and PI film are respectively provided on both sides of the protective mesh film for reinforcement. An impact-resistant protective frame made of elastic material is fixedly installed inside the edge frame, and a limiting strip is provided on one side of the impact-resistant protective frame for fastening it.

[0006] Preferably, in any of the above schemes, the bearing layer is located between the buffer transition layer and the reinforcing layer, and the cross-section of the buffer transition layer, the bearing layer and the reinforcing layer is a U-shaped structure.

[0007] The above technical solution is as follows: The buffer transition layer (silicone material) is U-shaped and fits around the edge of the glass cover. Its elastic properties can convert external impact energy (such as drop impact) into deformation energy, achieving the first layer of impact buffering and preventing the impact from being directly transmitted to the cover body. The load-bearing layer (PET material) is located between the buffer transition layer and the reinforcing layer. It is also U-shaped and is tightly bonded to the structures on both sides by optical adhesive. It uses its high toughness to bear the remaining impact load after buffering and disperse local stress concentration. The reinforcing layer (chemically tempered glass) serves as the core protective layer. The U-shaped structure covers the front and edge of the cover. It resists scratches from sharp objects with its high hardness. At the same time, the U-shaped wrapping enhances the edge bending resistance. The three work together to form a triple impact-resistant barrier of "buffering-load-reinforcement".

[0008] Preferably, one end of the edge frame is provided with a protective protrusion made of elastic material, and the interior of the protective protrusion has a slot for fixing the protective mesh.

[0009] The above technical solution is adopted: the protective boss (integrated with the middle frame, made of silicone) at one end of the edge frame (aluminum alloy) is fixed by adhesive backing. The elasticity of the boss can buffer the side impact and prevent the middle frame from directly colliding with the cover plate. The groove inside the boss (the width is adapted to the protective mesh) fixes the protective mesh by interference fit, ensuring the mesh position is accurate. At the same time, the rough surface of the inner wall of the groove increases the friction between the mesh and the boss, preventing the mesh from shifting when impacted, and providing a stable installation benchmark for the subsequent protective structure.

[0010] Preferably, in any of the above embodiments, the protective mesh film has a plurality of fiber pores inside, the PC film and the PI film are respectively attached to both ends of the protective mesh film, the PC film is located inside the reinforcing layer, and the PI film is located on one side of the reinforcing layer.

[0011] The above technical solution employs the following: the internal fiber pores of the protective mesh (fiberglass woven) can block the penetration of sharp objects (such as metal fragments and quartz sand), forming a physical protective barrier. The PC film (polycarbonate film) is adhered to the side of the mesh near the reinforcing layer and fixed to the reinforcing layer with UV adhesive, utilizing its impact resistance to assist in resisting the impact of sharp objects. The PI film (polyimide film) is adhered to the other side of the mesh and fixed in the same way. Its high weather resistance can protect the mesh from environmental corrosion (such as damp heat and ultraviolet rays), extending the protective life. The three components form a "blocking-impact-protection" sharp object protection system, preventing sharp objects from directly contacting the reinforcing layer and causing scratches or cracks.

[0012] Preferably, in any of the above embodiments, the impact-resistant protective frame is located on one side of the reinforcing layer, and the impact-resistant protective frame is located inside the protective boss.

[0013] The above technical solution is adopted: the impact-resistant protective frame (TPU material) is located on the outer side of the edge of the reinforcing layer and embedded in the protective protrusion. Its ring structure can surround the weak area of ​​the edge of the protective cover plate (the edge is a high stress concentration area). When an external impact (such as a corner collision) is applied to the middle frame, the protective frame further absorbs the impact energy through elastic deformation and evenly transfers the remaining impact load to the load-bearing layer, avoiding cracking of the edge of the reinforcing layer due to local overload. At the same time, the gap design between the protective frame and the reinforcing layer can accommodate the thermal expansion of the reinforcing layer and avoid structural deformation caused by temperature changes.

[0014] Preferably, in any of the above solutions, the limiting strip is made of elastic material, and both ends of the limiting strip are fixedly installed inside the protective boss, with the limiting strip and the end face of the impact-resistant protective frame fitting together.

[0015] The above technical solution is adopted: the two ends of the limiting strip (made of silicone) are fixed inside the protective boss through injection molding. Its end face is tightly fitted with the impact-resistant protective frame to form a radial preload, which restricts the radial movement of the protective frame along the boss and ensures that the protective frame is always aligned with the edge of the reinforcing layer during impact. At the same time, the elasticity of the limiting strip can help the protective frame buffer the impact and compensate for the assembly gap between the protective frame and the boss through deformation, avoiding impact noise caused by the gap and ensuring structural stability.

[0016] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. A protective mesh is added to the edge frame of the reinforced glass cover to provide full protection for the glass cover. The protective mesh blocks sharp objects that approach the reinforced glass cover, enhancing the glass cover's resistance to impacts from sharp objects. At the same time, an impact-resistant protective frame and limiting strip are installed inside the edge frame. The impact-resistant protective frame further enhances the overall resistance of the reinforced structure to external forces, facilitating improved protection performance during impacts and further enhancing the safety of the reinforced structure.

[0017] 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

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model; Figure 2 According to the embodiments of this utility model Figure 1 Enlarged structural diagram at point A; Figure 3This is a schematic diagram of the cross-sectional fracture structure of the edge frame according to an embodiment of the present invention; Among them: 1-buffer transition layer, 2-bearing layer, 3-reinforcing layer, 4-edge frame, 5-protective mesh, 6-PC film, 7-PI film, 8-impact protective frame, 9-limiting strip. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0020] like Figure 1-3 As shown in the figure, an impact-resistant reinforcement structure for a mobile phone glass cover according to an embodiment of the present invention includes a buffer transition layer 1 for fitting and protecting the glass cover. A bearing layer 2 for bearing impact force is provided on the surface of the buffer transition layer 1. A reinforcing layer 3 for protection is provided on the surface of the bearing layer 2. An edge frame 4 for covering and protecting the reinforcing layer 3 is provided on the surface of the reinforcing layer 3. A protective mesh 5 made of woven glass fiber is provided inside the edge frame 4. A PC film 6 and a PI film 7 for reinforcing the protective mesh 5 are respectively provided on both sides. An impact-resistant protective frame 8 made of elastic material is fixedly installed inside the edge frame 4. A limiting strip 9 for fastening the impact-resistant protective frame 8 is provided on one side of the impact-resistant protective frame 8.

[0021] Preferably, in any of the above schemes, the bearing layer 2 is located between the buffer transition layer 1 and the reinforcing layer 3, and the cross-sections of the buffer transition layer 1, the bearing layer 2, and the reinforcing layer 3 are U-shaped structures.

[0022] The above technical solution is adopted as follows: the buffer transition layer 1 (silicone material) is U-shaped and fits onto the edge of the glass cover. Its elastic properties can convert external impact energy (such as drop impact) into deformation energy, realizing the first layer of impact buffering and preventing the impact from being directly transmitted to the cover body. The load-bearing layer 2 (PET material) is located between the buffer transition layer and the reinforcing layer 3. It is also U-shaped and is tightly bonded to the structures on both sides by optical adhesive. It uses its high toughness to bear the remaining impact load after buffering and disperse local stress concentration. The reinforcing layer 3 (chemically tempered glass) serves as the core protective layer. The U-shaped structure covers the front and edge of the cover. It resists scratches from sharp objects with its high hardness. At the same time, the U-shaped wrapping enhances the edge bending resistance. The three work together to form a triple impact-resistant barrier of "buffering-load-reinforcement".

[0023] Preferably, one end of the edge frame 4 is provided with a protective protrusion made of elastic material, and the inside of the protective protrusion is provided with a groove for fixing the protective mesh 5.

[0024] The above technical solution is adopted: the protective boss (integrated with the middle frame, made of silicone) at one end of the edge frame 4 (aluminum alloy) is fixed by adhesive backing. The elasticity of the boss can buffer the side impact and prevent the middle frame from directly colliding with the cover plate. The groove inside the boss (the width is adapted to the protective mesh 5) is fixed to the protective mesh by interference fit to ensure the precise position of the mesh. At the same time, the rough surface of the inner wall of the groove increases the friction between the mesh and the boss, preventing the mesh from shifting when impacted, and providing a stable installation benchmark for the subsequent protective structure.

[0025] Preferably, in any of the above embodiments, the protective mesh 5 has a plurality of fiber pores inside, and the PC film 6 and PI film 7 are respectively attached to both ends of the protective mesh 5, with the PC film 6 located inside the reinforcing layer 3 and the PI film 7 located on one side of the reinforcing layer 3.

[0026] The above technical solution is adopted as follows: the internal fiber pores of the protective mesh 5 (glass fiber woven) can block the penetration of sharp objects (such as metal fragments and quartz sand), forming a physical protective barrier. The PC film 6 (polycarbonate film) is attached to the side of the mesh near the reinforcing layer 3 and fixed to the reinforcing layer with UV adhesive. Its impact resistance helps to resist the impact of sharp objects. The PI film 7 (polyimide film) is attached to the other side of the mesh and fixed in the same way. Its high weather resistance can protect the mesh from environmental corrosion (such as damp heat and ultraviolet rays) and extend the protection life. The three form a "blocking-impact resistance-protection" sharp object protection system to prevent sharp objects from directly contacting the reinforcing layer and causing scratches or cracks.

[0027] Preferably, in any of the above schemes, the impact-resistant protective frame 8 is located on one side of the reinforcing layer 3, and the impact-resistant protective frame 8 is located inside the protective boss.

[0028] The above technical solution is adopted: the impact-resistant protective frame 8 (TPU material) is located on the outer edge of the reinforcing layer 3 and is embedded in the protective protrusion. Its ring structure can surround the weak area of ​​the protective cover plate edge (the edge is a high stress concentration area). When an external impact (such as a corner collision) is applied to the middle frame, the protective frame further absorbs the impact energy through elastic deformation and evenly transfers the remaining impact load to the load-bearing layer 2, avoiding cracking of the reinforcing layer edge due to local overload. At the same time, the gap design between the protective frame and the reinforcing layer can accommodate the thermal expansion of the reinforcing layer and avoid structural deformation caused by temperature changes.

[0029] Preferably, of any of the above schemes, the limiting strip 9 is made of elastic material, and both ends of the limiting strip 9 are fixedly installed inside the protective boss, with the end face of the limiting strip 9 and the impact-resistant protective frame 8 fitting together.

[0030] The above technical solution is adopted: the two ends of the limiting strip 9 (silicone material) are fixed inside the protective boss through injection molding. Its end face is tightly fitted with the impact-resistant protective frame 8 to form a radial preload, which restricts the radial movement of the protective frame along the boss and ensures that the protective frame is always aligned with the edge of the reinforcing layer during impact. At the same time, the elasticity of the limiting strip can help the protective frame buffer the impact and compensate for the assembly gap between the protective frame and the boss through deformation, avoiding impact noise caused by the gap and ensuring structural stability.

[0031] The impact-resistant reinforcement structure for a mobile phone glass cover of this utility model works on the following principle: The glass cover is protected by a U-shaped buffer transition layer 1. When an external impact (such as a drop or collision) occurs, the buffer transition layer 1 first absorbs part of the impact energy through elastic deformation, initially attenuating the impact stress. The remaining load is then transferred to the load-bearing layer 2 on its surface. The load-bearing layer 2, with its high toughness, bears the impact and disperses local stress, preventing stress concentration damage to the glass cover. Subsequently, the load is further transferred to the surface reinforcement layer 3. The reinforcement layer 3, with its high hardness and surface compressive stress, resists impact and scratches from sharp objects, forming a primary impact-resistant chain of "buffering-load-reinforcement". The surface of the reinforcement layer 3 is formed by the edges and center... The frame 4 is covered with protection, and a protective protrusion at one end is fixed with a glass fiber woven protective mesh 5 through a groove. The mesh first blocks the intrusion of external sharp objects. The PC film 6 and PI film 7 attached to both sides respectively assist in impact resistance and environmental corrosion resistance, enhancing the protection effect against sharp objects. The impact-resistant protective frame 8 inside the edge frame 4 absorbs energy twice through elastic deformation when the impact is transmitted to the edge, preventing the edge of the reinforcement layer 3 from cracking. At the same time, the limiting strip 9 on one side of the protective frame keeps the position of the protective frame stable with pre-tightening force, assists in buffering and compensates for assembly gaps. All the structures work together to form a multi-layer impact-resistant protection system, comprehensively improving the impact resistance of the glass cover.

[0032] Compared with the prior art, the present invention has the following advantages: 1. A protective mesh 5 is added to the edge frame 4 of the reinforced structure of the glass cover to provide full protection for the glass cover. The protective mesh 5 is used to block sharp objects that approach the reinforced structure of the glass cover, thereby enhancing the glass cover's resistance to impacts from sharp objects. At the same time, an impact-resistant protective frame 8 and a limiting strip 9 are set inside the edge frame 4. The impact-resistant protective frame 8 is used to further enhance the overall resistance of the reinforced structure to external forces, thereby improving the protective performance of the reinforced structure during impacts and further improving the safety of the reinforced structure.

Claims

1. An impact-resistant reinforcement structure for a mobile phone glass cover, comprising a buffer transition layer (1) for fitting and protecting the glass cover, wherein a bearing layer (2) for bearing impact force is disposed on the surface of the buffer transition layer (1), and a reinforcing layer (3) for protection is disposed on the surface of the bearing layer (2), characterized in that: The surface of the reinforcing layer (3) is provided with an edge frame (4) that covers and protects it. Inside the edge frame (4) is a protective mesh (5) made of woven glass fiber. On both sides of the protective mesh (5) are PC film (6) and PI film (7) that reinforce it. Inside the edge frame (4) is an impact-resistant protective frame (8) made of elastic material. On one side of the impact-resistant protective frame (8) is a limiting strip (9) that secures it.

2. The impact-resistant reinforcement structure for a mobile phone glass cover as described in claim 1, characterized in that: The bearing layer (2) is located between the buffer transition layer (1) and the reinforcing layer (3), and the cross-section of the buffer transition layer (1), the bearing layer (2) and the reinforcing layer (3) is a U-shaped structure.

3. The impact-resistant reinforcement structure for a mobile phone glass cover as described in claim 2, characterized in that: One end of the edge frame (4) is provided with a protective protrusion made of elastic material, and the inside of the protective protrusion is provided with a slot for fixing the protective mesh (5).

4. The impact-resistant reinforcement structure for a mobile phone glass cover as described in claim 3, characterized in that: The protective mesh (5) has a number of fiber holes inside. The PC film (6) and PI film (7) are respectively attached to the two ends of the protective mesh (5). The PC film (6) is located inside the reinforcing layer (3), and the PI film (7) is located on one side of the reinforcing layer (3).

5. The impact-resistant reinforcement structure for a mobile phone glass cover as described in claim 4, characterized in that: The impact-resistant protective frame (8) is located on one side of the reinforcing layer (3), and the impact-resistant protective frame (8) is located inside the protective boss.

6. The impact-resistant reinforcement structure for a mobile phone glass cover as described in claim 5, characterized in that: The limiting strip (9) is made of elastic material. Both ends of the limiting strip (9) are fixedly installed inside the protective boss. The end faces of the limiting strip (9) and the impact-resistant protective frame (8) are in contact.

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