Tablet anti-glare AG glass bonding structure

Abstract

The utility model relates to a kind of tablet computer anti-glare AG glass bonding structure, to solve the technical problem of current vacuum bonding limited vacuum degree and uneven stress of compression, including box and upper cover, upper cover is placed in the top of box, the middle position of four side edges of box is fixed with screw block, the side edge of upper cover above screw block is fixed with connecting block, it is also provided with the vertical through connecting block and with the rotatable connection of connecting block handle, handle below is realized by screw thread and is connected to screw block in the locking of upper cover and box.The utility model is by being used for supporting the support plate of screen and AG glass in box, setting the ring frame structure for fixing rubber sheet below upper cover, after screen and AG glass are put in and upper cover is locked, rubber sheet below box inside is pumped to near vacuum, the inside of ring frame above rubber sheet is pressurized, so that rubber sheet has greater pressure difference up and down, and pressure is evenly applied to AG glass and screen surface, ensure that bonding quality is better.

Description

Technical Field

[0001] This utility model relates to the field of glass bonding technology, specifically to an anti-glare AG glass bonding structure for tablet computers. Background Technology

[0002] In the field of tablet computer display technology, balancing anti-glare and display performance is a key requirement. Existing technologies utilize AG (anti-glare) glass, which forms a nanoscale rough structure on the glass surface through chemical etching or physical spraying processes. This transforms specular reflection into diffuse reflection, effectively reducing ambient light interference. In scenarios such as smart blackboards and automotive HUDs, it achieves a 78% reduction in reflectivity and a viewing angle exceeding 160°. While physical spraying reduces costs by 20%, it lowers light transmittance to 88%-90%, limiting its application in high-end fields. Furthermore, AG glass is often combined with AF coating to form a 115° teardrop angle, achieving multiple functions such as anti-glare, fingerprint resistance, and easy cleaning. This makes it widely used in touch display devices in education, healthcare, and industrial control scenarios.

[0003] When producing this type of screen, a lamination device is needed to press and bond the AG glass to the screen surface. Existing technology uses vacuum lamination technology, which removes the air between the glass and the bonding layer as well as the gas released by the material when heated. Under high pressure, a tight bond with no bubbles and high flatness is achieved, which effectively improves the optical uniformity of the anti-glare AG glass, enhances structural stability, and ensures its reliable use in complex environments.

[0004] In actual operation, the pressure plate structure cannot evenly cover the force between the glass and the screen, which affects the quality of the bonding. Furthermore, due to the limited vacuum level of the equipment, it is impossible to obtain sufficient pressure difference to press the AG glass and the screen together, which also affects the bonding quality. Therefore, a new technical solution needs to be designed to address this issue. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a bonding structure for anti-glare AG glass in tablet computers to solve the technical problems of limited vacuum degree and uneven pressure in current vacuum bonding.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A tablet computer anti-glare AG glass bonding structure is designed, including a housing and a top cover. The top cover is placed on top of the housing. Screw blocks are fixed at the middle positions of the four sides of the housing. A connecting block is fixed on the side of the top cover above the screw blocks. A vertically penetrating connecting block and rotatably connected to the connecting block is also provided. The bottom of the rotating handle is screwed into the screw block to lock the top cover and the housing. A support plate is fixed inside the upper part of the housing. A rubber pad is fixedly attached to the middle position of the support plate surface. Air holes are evenly opened on the support plate surface around the outer ring of the rubber pad. A vacuum pump communicating with the inside of the housing is also provided on the side of the housing. A ring frame is provided at the bottom of the top cover. A rubber sheet is tightly fixed to the bottom of the ring frame. When the top cover is locked on top of the housing, the ring frame and rubber sheet extend into the housing inside above the support plate, and the ring frame and rubber sheet are located above the top plate with a gap. A booster pump communicating with the inside of the top cover and the ring frame is installed on the surface of the top cover.

[0007] Through the above technical solution, the inside of the box below the rubber sheet is evacuated, while the top of the rubber sheet is pressurized, which can obtain a greater pressure difference. This allows the rubber sheet to apply greater pressure to the AG glass and screen below and ensure uniform force distribution, thereby guaranteeing the bonding effect of the AG glass and screen.

[0008] Preferably, the upper and lower surfaces of the connecting block are provided with plate grooves, and the outer rings of the handles above and below the connecting block are provided with ring plates. The ring plates are rotatably attached to the ring grooves on the upper and lower surfaces of the connecting block, so as to realize the rotatable connection between the handle and the connecting block, and the handle will not fall off the connecting block.

[0009] Preferably, one-way valves are installed on the pipes connecting the vacuum pump and the housing, and on the pipes connecting the booster pump and the top cover. The one-way valve on the vacuum pump pipe faces the vacuum pump in one direction, and the one-way valve on the booster pump pipe faces the inside of the top cover in one direction. This prevents external gas from entering the housing through the vacuum pump and its pipes during use, and also prevents air pressure leakage from inside the top cover.

[0010] Preferably, the side of the box is connected to a first pressure relief pipe that communicates with its interior. A valve is installed on the first pressure relief pipe. After use, the valve on the first pressure relief pipe is opened to balance the air pressure between the box and the outside.

[0011] Preferably, the side of the top cover is connected to a second pressure relief pipe that communicates with its interior. A valve is installed on the second pressure relief pipe. After use, the valve on the second pressure relief pipe is opened to balance the pressure between the top cover and the external air pressure.

[0012] Preferably, the rubber sheet is fixed to the bottom surface of the ring frame in a detachable manner, which facilitates replacement of the rubber sheet after it ages due to long-term use.

[0013] Preferably, the outer ring surface of the rubber sheet is provided with an annular pressure plate that presses against the surface of the rubber sheet at the position of the ring frame. Multiple bolts are evenly arranged on the surface of the pressure plate, passing through the pressure plate and the rubber sheet and screwed into the screw holes provided on the surface of the ring frame, so as to realize the detachable locking of the rubber sheet.

[0014] Preferably, a sealing ring is fixed to the outer surface of the box body. The sealing ring is fixed to the upper surface of the box body by an adhesive method, and the upper cover is pressed against the upper surface of the box body by the sealing ring, which helps to improve the sealing effect.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a support plate for supporting the screen and AG glass in the housing, and a ring frame for fixing the rubber sheet under the top cover. When the screen and AG glass are placed in and the top cover is locked, the inside of the housing below the rubber sheet is evacuated to near vacuum, and the inside of the ring frame above the rubber sheet is pressurized. This results in a greater pressure difference between the top and bottom of the rubber sheet and evenly applies pressure to the surfaces of the AG glass and the screen, ensuring better bonding quality.

[0016] 2. This utility model uses a detachable pressure plate to press and lock the rubber sheet to the bottom of the ring frame. The pressure plate can be removed later to replace the rubber sheet after long-term use.

[0017] 3. This utility model, by setting a one-way valve on the pipe between the vacuum pump and the housing and on the pipe between the booster pump and the top cover, can prevent air leakage from the vacuum pump into the housing after negative pressure is drawn, and prevent the pressurized gas in the top cover ring frame from being discharged outward. It also sets a first pressure relief pipe and a second pressure relief pipe to balance the air pressure in the housing and the top cover after use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the box in this utility model; Figure 3 This is a schematic diagram of the bottom structure of the top cover of this utility model; Figure 4 This is a schematic diagram of the bottom structure of the upper cover after the rubber sheet and pressure plate of this utility model have been removed.

[0019] In the diagram: 1. Housing; 11. Support plate; 111. Air vent; 12. Rubber pad; 13. Sealing ring; 14. Screw block; 15. First pressure relief pipe; 2. Top cover; 21. Ring frame; 211. Screw hole; 22. Rubber sheet; 23. Pressure plate; 231. Bolt; 24. Connecting block; 241. Plate groove; 25. Rotary handle; 251. Thread; 252. Ring plate; 26. Second pressure relief pipe; 3. Vacuum pump; 4. Booster pump; 5. Valve; 6. Check valve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: A bonding structure for anti-glare AG glass in a tablet computer, see [link / reference] Figures 1 to 4 The enclosure includes a housing 1 and a top cover 2. The top cover 2 and the housing 1 have the same cross-sectional area, with the top cover 2 positioned above the housing 1. Screw blocks 14 are fixed at the middle of the four sides of the housing 1. A connecting block 24 is fixed on the side of the top cover 2 above the screw blocks 14. The connecting block 24 is aligned with the screw blocks 14 below it. A rotating handle 25 is also provided, which runs vertically through the connecting block 24 and is rotatably connected to the connecting block 24. To prevent the connection between the rotating handle 25 and the connecting block 24 from falling off, plate grooves 241 are provided on the surface above and below the connecting block 24. A ring plate 252 is provided on the outer ring of the rotating handle 25 above and below the connecting block 24. The ring plate 252 rotatably contacts the ring grooves on the upper and lower surfaces of the connecting block 24, thereby achieving a rotatable connection between the rotating handle 25 and the connecting block 24.

[0021] The lower outer ring of the handle 25 is provided with a thread 251. When the handle 25 is rotated so that its lower part is screwed into the screw block 14 through the thread 251, the upper cover 2 and the box body 1 can be locked. Furthermore, a sealing ring 13 is fixed to the outer ring of the surface of the box body 1. The sealing ring 13 is fixed to the upper surface of the box body 1 by a fitting method. After the upper cover 2 is locked on the box body 1, it will press against the upper surface of the sealing ring 13, thereby obtaining a better sealing effect.

[0022] Inside the housing 1, a support plate 11 is fixed at the top to support the screen and the AG glass to be bonded together. In order to protect the screen or AG glass, a rubber pad 12 is attached and fixed in the middle of the surface of the support plate 11 so that the screen and AG glass are aligned and supported on the rubber pad 12 on the surface of the support plate 11.

[0023] Air holes 111 are evenly distributed on the surface of the support plate 11 around the outer ring of the rubber pad 12. A vacuum pump 3 communicating with the interior of the housing 1 is also provided on the side of the housing 1. A ring frame 21 is provided at the bottom of the top cover 2. A rubber sheet 22 is tightly fixed to the bottom of the ring frame 21. After the AG glass is attached to the surface of the screen, it is supported on the rubber pad 12 on the surface of the support plate 11 along with the screen. When the top cover 2 is locked above the housing 1, the ring frame 21 and the rubber sheet 22 will extend into the interior of the housing 1 above the support plate 11. The ring frame 21 and the rubber sheet 22 are located above the top plate with a gap. The rubber sheet 22 will also be located on the screen and the surface of the AG glass attached to it. A booster pump 4 communicating with the inside of the top cover 2 and the ring frame 21 is installed on the surface of the top cover 2. When the components are bonded, the vacuum pump 3 is activated to extract the air from the inside of the housing 1, bringing the housing 1 to a negative pressure or even near-vacuum state. The air inside the housing 1 between the support plate 11 and the rubber sheet 22 is further extracted through the air vent 111. Under the action of the pressure difference, the rubber sheet 22 is pressed downward and adhered to the upper surface of the support plate 11. At the same time, pressure is applied evenly to the screen and AG glass. Simultaneously, the booster pump 4 is activated to pressurize the ring frame 21 in the upper cover 2, further increasing the pressure difference between the top and bottom of the rubber sheet 22. This allows the rubber sheet 22 to exert a greater force to evenly press the AG glass and the screen, ensuring that the two are evenly stressed and firmly bonded together by the uniform adhesive between them.

[0024] One-way valves 6 are installed on the pipes connecting the vacuum pump 3 and the housing 1, and on the pipes connecting the booster pump 4 and the top cover 2. The one-way valve 6 on the vacuum pump 3 pipe faces the vacuum pump 3 in one direction, and the one-way valve 6 on the booster pump 4 pipe faces the inside of the top cover 2 in one direction. During use, this can prevent air from flowing back into the housing 1 through the vacuum pump 3 pipe and disrupting the vacuum environment, and it can also prevent the air pressurized inside the top cover 2 from leaking out and disrupting the high-pressure environment.

[0025] Additionally, the side of the housing 1 is connected to a first pressure relief pipe 15 that communicates with its interior. A valve 5 is installed on the first pressure relief pipe 15. After the bonding is completed, the valve 5 on the first pressure relief pipe 15 can be opened to allow external air to enter the interior of the housing 1 through the first pressure relief pipe 15, thereby balancing the air pressure inside and outside the housing 1. The side of the top cover 2 is connected to a second pressure relief pipe 26 that communicates with its interior. A valve 5 is also installed on the second pressure relief pipe 26. After the bonding is completed, the valve 5 on the second pressure relief pipe 26 can be opened to allow the air inside the top cover 2 to be discharged to the outside of the top cover 2 through the second pressure relief pipe 26, thereby balancing the air pressure inside and outside the top cover 2. Subsequently, the handle 25 can be rotated to unscrew its bottom from the screw block 14, releasing the lock on the top cover 2. The top cover 2 can then be removed, and the bonded screen and AG glass can be taken out.

[0026] Due to prolonged use, the rubber sheet 22 will be frequently stretched under the action of air pressure difference, making it prone to fatigue and damage. An annular pressure plate 23 is provided on the outer ring surface of the rubber sheet 22, pressing against the surface of the rubber sheet 22 at the position of the ring frame 21. Multiple bolts 231 are evenly provided on the surface of the pressure plate 23, passing through the pressure plate 23 and the rubber sheet 22 and screwed into the screw holes 211 provided on the surface of the ring frame 21, so as to realize the detachable locking of the rubber sheet 22. The rubber sheet 22 is fixed to the bottom surface of the ring frame 21 in a detachable manner. Subsequently, the bolts 231 can be rotated to unscrew it, and the pressure plate 23 can be removed to remove the rubber sheet 22 for replacement. The new rubber sheet 22 is then locked to the lower surface of the ring frame 21 in the same way.

[0027] The implementation principle of this utility model is as follows: both the vacuum pump 3 and the negative pressure pump are connected to the industrial control computer and powered on. First, rotate the four handles 25 to unscrew the threads 251 from the screw block 14, which can release the locking of the top cover 2 and the box body 1, so that the top cover 2 can be removed. Place the screen of the tablet computer and the AG glass above the screen with glue applied to it on the surface of the rubber pad 12 in the middle of the support plate 11. Then, place the top cover 2 on top of the box body 1, align the connecting block 24 with the screw block 14, and rotate the handles 25 to tighten the bottom of the top cover 2 to the inside of the screw block 14 through the threads 251, thereby locking the top cover 2 on top of the box body 1 and making the bottom of the top cover 2 contact the sealing ring 13 on the surface of the box body 1 to achieve a seal. At this time, the ring frame 21 and the rubber sheet 22 fixed at the bottom will extend into the upper interior of the box body 1. Keep valves 5 on the first pressure relief pipe 15 and the second pressure relief pipe 26 closed. First, start the vacuum pump 3 to extract air from the inside of the housing 1, bringing the housing 1 to a negative pressure or even near-vacuum state. Through the air vent 111, air can also be extracted from the inside of the housing 1 between the top of the support plate 11 and the bottom of the rubber sheet 22. Under the action of the pressure difference, the rubber sheet 22 will be pressed downward and attached to the upper surface of the support plate 11. At the same time, pressure can be applied evenly to the screen and AG glass. Then, start the booster pump 4 to pressurize the ring frame 21 in the upper cover 2, so that the top and bottom of the rubber sheet 22 are pressed together. The pressure difference between the two sides increases further, so that the rubber sheet 22 can exert a greater force to evenly press the AG glass and the screen together, so that the two are evenly stressed and firmly bonded together. After bonding is completed, the valves 5 on the first pressure relief pipe 15 and the second pressure relief pipe 26 can be opened to release the pressure inside the top cover 2 and allow external gas to enter the box 1 to balance the air pressure. Then, the four handles 25 can be turned again to unscrew the threads 251 from the screw block 14, releasing the lock on the top cover 2 and the box 1, so that the top cover 2 can be removed again, and then the bonded AG glass and screen assembly can be taken away.

[0028] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A tablet computer anti-glare AG glass bonding structure, comprising a housing (1) and a top cover (2), characterized in that, The top cover (2) is placed on top of the box body (1). Screw blocks (14) are fixed in the middle of the four sides of the box body (1). A connecting block (24) is fixed on the side of the top cover (2) above the screw block (14). A rotating handle (25) is also provided that penetrates the connecting block (24) vertically and is rotatably connected to the connecting block (24). The rotating handle (25) is screwed into the screw block (14) through a thread (251) to lock the top cover (2) and the box body (1). A support plate (11) is fixed inside the upper part of the box (1). A rubber pad (12) is attached to the middle of the surface of the support plate (11). Air holes (111) are evenly opened on the surface of the support plate (11) around the outer ring of the rubber pad (12). A vacuum pump (3) communicating with the inside of the box (1) is also provided on the side of the box (1). A ring frame (21) is provided at the bottom of the top cover (2). A rubber sheet (22) is attached to the bottom of the ring frame (21). When the top cover (2) is locked above the box (1), the ring frame (21) and the rubber sheet (22) extend into the box (1) above the support plate (11). The ring frame (21) and the rubber sheet (22) are located above the top plate and there is a gap. A booster pump (4) communicating with the inside of the top cover (2) and the ring frame (21) is installed on the surface of the top cover (2).

2. The anti-glare AG glass bonding structure for tablet computers as described in claim 1, characterized in that, The upper and lower surfaces of the connecting block (24) are provided with plate grooves (241), and the outer rings of the handles (25) above and below the connecting block (24) are provided with ring plates (252). The ring plates (252) are rotatably attached to the ring grooves on the upper and lower surfaces of the connecting block (24), so as to realize the rotatable connection between the handles (25) and the connecting block (24).

3. The anti-glare AG glass bonding structure for tablet computers as described in claim 1, characterized in that, One-way valves (6) are installed on the pipe connecting the vacuum pump (3) and the housing (1) and on the pipe connecting the booster pump (4) and the top cover (2). The one-way valve (6) on the vacuum pump (3) pipe faces the vacuum pump (3) in one direction, and the one-way valve (6) on the booster pump (4) pipe faces the inside of the top cover (2) in one direction.

4. The anti-glare AG glass bonding structure for tablet computers as described in claim 1, characterized in that, The side of the box (1) is connected to a first pressure relief pipe (15) that communicates with its interior, and a valve (5) is installed on the first pressure relief pipe (15).

5. The anti-glare AG glass bonding structure for tablet computers as described in claim 1, characterized in that, The side of the top cover (2) is connected to a second pressure relief pipe (26) that communicates with its interior, and a valve (5) is installed on the second pressure relief pipe (26).

6. The anti-glare AG glass bonding structure for tablet computers as described in claim 1, characterized in that, The rubber sheet (22) is detachably fixed to the bottom surface of the ring frame (21).

7. The anti-glare AG glass bonding structure for a tablet computer as described in claim 6, characterized in that, The outer ring surface of the rubber sheet (22) is provided with an annular pressure plate (23) that presses against the surface of the rubber sheet (22) at the position of the ring frame (21). Multiple bolts (231) are evenly provided on the surface of the pressure plate (23) to pass through the pressure plate (23) and the rubber sheet (22) and screw into the screw holes (211) provided on the surface of the ring frame (21), so as to realize the detachable locking of the rubber sheet (22).

8. The anti-glare AG glass bonding structure for a tablet computer as described in claim 1, characterized in that, A sealing ring (13) is fixed to the outer surface of the box (1), and the sealing ring (13) is fixed to the upper surface of the box (1) by means of bonding.

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