Capacitive touch screen with impact resistance function

Abstract

The invention discloses a capacitive touch screen with an impact resistance function, which comprises a shell, a protection box is arranged on the outer side of the shell, a buffer pad and a rubber pad which are used for buffering the touch screen and resisting impact force are arranged in the protection box, a valve and a filter screen which are used for blocking dust are arranged in the protection box, and the filter screen is arranged in the protection box. The device comprises a protection box, one end of the protection box is provided with a movable frame and a pressing plate which are used for clamping and fixing a connecting line, and the end part of the protection box is provided with a buffer spring used for buffering the connecting line, compared with the prior art, the device has the beneficial effects that the impact-resistant heat dissipation assembly in the protection box forms a multi-buffer structure through a buffer pad, a rubber pad and a hexagonal groove, so that the service life of the device is prolonged, and the service life of the device is prolonged. Impact force can be absorbed and dispersed during impact of external force, and the impact force is prevented from directly acting on the touch screen; meanwhile, the fixing columns of the shell are matched with the fixing cylinders of the protection box, the structural stability is further enhanced, the risks of screen fragmentation and internal element damage are reduced, and the device is particularly suitable for industrial, outdoor and other complex scenes.

Description

Technical Field

[0001] This invention relates to the field of capacitive touchscreen technology, specifically to a capacitive touchscreen with shock resistance. Background Technology

[0002] A capacitive touchscreen is an input device that detects the position of an operation by detecting changes in the capacitance value of the screen surface caused by the human body or conductive objects. It is mainly used in smartphones, vehicle navigation, and industrial control. Its core structure is a four-layer composite glass screen. The surface of the glass substrate is coated with an ITO transparent conductive layer, and the outer layer is covered with a 0.0015 mm thick silica glass protective layer. The interlayer ITO serves as the working surface and leads out four electrodes, while the inner ITO layer acts as a shield. The screen forms a coupling capacitance with the conductive layer through the human body's electric field. The controller calculates the touch coordinates by the current ratio of the four corner electrodes, achieving a positioning accuracy of 99% and a response speed of less than 3ms. Compared to resistive touchscreens, its double-glass structure can resist dust and oil stains, supports multi-touch, and covers a full range of sizes from 3.5 to 86 inches. It has a wide operating temperature range of -40℃ to 85℃ and is used in ultra-thin flexible screens for smartphones and high-cleanliness solutions for medical applications.

[0003] While existing capacitive touchscreens meet user needs to some extent, they still have certain drawbacks. Specifically, traditional touchscreens lack an effective buffer structure between the casing and the screen. When subjected to impact or drops, the force is directly transmitted to the touchscreen surface and internal components, easily leading to screen breakage and internal circuit damage. This is especially problematic in impact-prone environments such as industrial and outdoor settings, significantly shortening lifespan and increasing repair costs. Touchscreens also generate heat over time. Traditional designs rely heavily on natural heat dissipation from the casing, resulting in low efficiency. Furthermore, to ensure airtightness, the heat dissipation structure is simple, leading to heat buildup internally, slowing response speed and reducing touch accuracy. Prolonged high temperatures also accelerate the aging of internal components, affecting overall performance. Finally, the touchscreen's connecting cable is a crucial component for data transmission. Traditional designs lack dedicated fixing and buffering structures for the cable, making it prone to loosening, poor contact, or even breakage due to pulling or vibration, causing data transmission interruptions. Additionally, the cable lacks protective measures, making it susceptible to damage from friction and compression, increasing the risk of malfunction. Therefore, this invention designs a capacitive touchscreen with impact resistance to address these issues. Summary of the Invention

[0004] This invention provides a capacitive touchscreen with impact resistance, effectively addressing the lack of an effective buffer structure between the casing and screen in traditional touchscreens mentioned in the background. When subjected to external impact or drop, the impact force is directly transmitted to the touchscreen surface and internal components, easily leading to screen breakage and internal circuit damage. Especially in impact-prone scenarios such as industrial and outdoor environments, the lifespan is significantly shortened, and maintenance costs are high. Touchscreens generate heat during prolonged use, and traditional designs often rely on natural heat dissipation from the casing, resulting in low heat dissipation efficiency. Furthermore, to ensure sealing, the heat dissipation structure is simple, leading to heat accumulation internally, causing slower touchscreen response and decreased touch accuracy. Prolonged high temperatures also accelerate the aging of internal components, affecting overall performance. The touchscreen's connecting cable is a critical component for data transmission. Traditional designs lack dedicated fixing and buffering structures for the connecting cable, making it prone to loosening, poor contact, or even breakage due to external pulling or vibration, causing data transmission interruptions. Simultaneously, the connecting cable lacks protective measures and is easily damaged by friction and compression, increasing the risk of failure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a capacitive touch screen with impact resistance, comprising a housing, wherein a touch screen is disposed inside the housing, and a connecting wire is disposed at one end of the touch screen; The outer side of the housing is provided with a protective box. Inside the protective box are cushioning pads and rubber pads for buffering the touch screen and resisting impact. Inside the protective box are valves and filters to block dust. One end of the protective box is provided with a movable frame and a pressing plate for clamping and fixing the connecting cable. The end of the protective box is provided with a buffer spring for buffering the connecting cable.

[0006] A capacitive touch screen with impact resistance function, preferably, has a protective box on the outside of the housing, and an impact-resistant heat dissipation component installed inside the protective box. The impact-resistant heat dissipation component includes a buffer pad, a rubber pad, a hexagonal groove, a fixing post, a fixing cylinder, an air outlet, a heat dissipation groove, a valve, and a filter screen. The protective box has a cushioning pad bonded inside, and a rubber pad bonded inside the cushioning pad. The end face of the rubber pad has a hexagonal groove. Fixed posts are evenly arranged on the bottom surface of the housing. Fixed cylinders are evenly arranged inside the protective box. Air outlet holes are evenly arranged at the bottom of the fixed cylinders. Heat dissipation grooves are provided on the outer sides of both the cushioning pad and the protective box. Valves are provided inside the heat dissipation grooves. A filter screen is provided at one end of the heat dissipation groove.

[0007] A capacitive touchscreen with impact resistance, preferably wherein the fixing post is located inside the fixing cylinder, and the air outlet and the hexagonal groove are positioned corresponding to each other.

[0008] A capacitive touch screen with impact resistance, preferably, has a fixed buffer assembly at one end of the protective box, the fixed buffer assembly including a buffer spring, a moving frame, a limiting rod, a pressing plate, a rubber plate, a limiting post and a fixing screw; The protective box is provided with buffer springs evenly distributed at one end. Several buffer springs are connected at one end through a movable frame. A limit rod is slidably connected inside the movable frame. The limit rod is fixedly installed at one end of the protective box. A limit post is slidably connected inside one end of the movable frame. A pressing plate is fixedly connected to the top of the limit post. A rubber plate is glued to the bottom surface of the pressing plate. The pressing plate and the movable frame are connected by a fixing screw.

[0009] A capacitive touchscreen with impact resistance, preferably wherein the connecting line is located inside the moving frame and the limiting rod is located inside the buffer spring.

[0010] A capacitive touchscreen with impact resistance, preferably, has a protective component installed on the top of the housing, the protective component including a moving groove, a slider, a rubber frame, a protective frame, a spring telescopic column, a moving plate, and screen cleaning cotton; Both ends of the top surface of the housing are provided with movable grooves. A slider is slidably connected inside the movable groove. A rubber frame is glued to the outside of the slider. The tops of two sliders are connected by a protective frame. Spring telescopic columns are evenly installed inside the protective frame by screws. The bottoms of several spring telescopic columns are connected by a movable plate. Screen cleaning cotton is glued to the bottom surface of the movable plate.

[0011] A capacitive touchscreen with impact resistance, preferably wherein the screen cleaning cotton is located on the touchscreen, and the top surface of the touchscreen is in contact with the bottom surface of the screen cleaning cotton.

[0012] A capacitive touchscreen with impact resistance, preferably wherein the slider has a T-shaped longitudinal section.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. The shock-resistant heat dissipation components inside the protective case form a multi-layered buffer structure with buffer pads, rubber pads, and hexagonal grooves. When an external force impacts, it can absorb and disperse the impact force, preventing the impact force from acting directly on the touch screen. At the same time, the fixing posts of the shell and the fixing cylinder of the protective case work together to further enhance the structural stability, reduce the risk of screen breakage and damage to internal components, and are especially suitable for complex scenarios such as industrial and outdoor environments, significantly extending the service life of the touch screen. 2. The fixed cylinder, air vent, and hexagonal groove of the impact-resistant heat dissipation component can guide the heat generated by the touch screen to the inside of the buffer pad, and then dissipate it through the heat dissipation groove of the buffer pad and the protective box. The valve in the heat dissipation groove can prevent external dust from flowing back in, and the filter screen further blocks impurities from entering, which not only ensures heat dissipation efficiency, but also avoids dust accumulation from affecting the performance of components, ensuring the long-term stable operation of the touch screen. 3. The buffer spring of the fixed buffer assembly works with the moving frame to elastically fix the connecting wire. When pulled by external force, the buffer spring can absorb the tension and prevent the connecting wire from being directly stressed. The limit rod ensures the stable movement of the moving frame and prevents the buffer spring from bending. The pressing plate and rubber plate can further fix the connecting wire, prevent vibration from causing loosening, ensure stable data transmission, and reduce the occurrence of failures. 4. The protective frame of the protective component can slide along the moving groove of the housing. During the sliding process, the screen cleaning cotton at the bottom can automatically wipe the touch screen surface to remove dust, fingerprints and other stains without the need for additional tools. The spring telescopic column ensures that the cleaning cotton is in close contact with the screen, resulting in good cleaning effect. The rubber frame and T-shaped slider can prevent the protective frame from falling off, ensuring screen cleanliness without affecting touch operation and improving the user experience. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the buffer pad installation structure of the present invention; Figure 3 This is a schematic diagram of the fixed column installation structure of the present invention; Figure 4 This is the invention Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 This is a schematic diagram of the rubber sheet installation structure of the present invention; Figure 6 This is a schematic diagram of the pressing plate mounting structure of the present invention; Figure 7 This is a schematic diagram of the protective box mounting structure of the present invention; Figure 8 This is the invention Figure 7 Enlarged structural diagram of region B in the middle; Figure 9 This is a schematic diagram of the screen cleaning cotton installation structure of the present invention; The diagram shows the following components: 1. Housing; 2. Touchscreen; 3. Protective Box; 4. Impact-Resistant Heat Dissipation Components; 401. Buffer Pad; 402. Rubber Pad; 403. Hexagonal Groove; 404. Fixing Post; 405. Fixing Cylinder; 406. Air Outlet; 407. Heat Dissipation Channel; 408. Valve; 409. Filter Screen; 5. Fixed Buffer Components; 501. Buffer Spring; 502. Moving Frame; 503. Limiting Rod; 504. Press Plate; 505. Rubber Plate; 506. Limiting Post; 507. Fixing Screw; 6. Protective Components; 601. Moving Groove; 602. Slider; 603. Rubber Frame; 604. Protective Frame; 605. Spring Telescopic Post; 606. Moving Plate; 607. Screen Cleaning Cotton; 7. Connecting Cable. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example: Figure 1-4 As shown, the present invention provides a technical solution: a capacitive touch screen with impact resistance, including a housing 1, a touch screen 2 disposed inside the housing 1, and a connecting line 7 disposed at one end of the touch screen 2. A protective box 3 is provided on the outside of the housing 1. An impact-resistant heat dissipation component 4 is installed inside the protective box 3. The impact-resistant heat dissipation component 4 includes a buffer pad 401, a rubber pad 402, a hexagonal groove 403, a fixing post 404, a fixing cylinder 405, an air outlet 406, a heat dissipation groove 407, a valve 408, and a filter screen 409. The protective box 3 has a buffer pad 401 bonded inside, and a rubber pad 402 bonded inside the buffer pad 401. The end face of the rubber pad 402 has a hexagonal groove 403. The bottom surface of the housing 1 is evenly provided with fixing posts 404. The protective box 3 has a fixing cylinder 405 evenly provided inside, and the bottom of the fixing cylinder 405 has an air outlet 406 evenly provided. The buffer pad 401 and the outer side of the protective box 3 are both provided with heat dissipation grooves 407. The heat dissipation grooves 407 are provided with valves 408 inside, and a filter screen 409 is provided at one end inside the heat dissipation grooves 407.

[0018] The fixing post 404 is located inside the fixing cylinder 405. The air outlet 406 and the hexagonal groove 403 are positioned to facilitate the exhaust of gas inside the fixing cylinder 405 and to facilitate heat dissipation inside the protective box 3.

[0019] One end of the protective box 3 is provided with a fixed buffer assembly 5, which includes a buffer spring 501, a moving frame 502, a limiting rod 503, a pressing plate 504, a rubber plate 505, a limiting post 506, and a fixing screw 507. A buffer spring 501 is evenly arranged at one end of the protective box 3. Several buffer springs 501 are connected at one end through a movable frame 502. A limit rod 503 is slidably connected inside the movable frame 502. The limit rod 503 is fixedly installed at one end of the protective box 3. A limit post 506 is slidably connected inside one end of the movable frame 502. A pressing plate 504 is fixedly connected to the top of the limit post 506. A rubber plate 505 is glued to the bottom surface of the pressing plate 504. The pressing plate 504 and the movable frame 502 are connected by a fixing screw 507.

[0020] The connecting line 7 is located inside the moving frame 502, and the limiting rod 503 is located inside the buffer spring 501. It can limit the buffer spring 501, avoid the problem of the buffer spring 501 bending, and fix the connecting line 7.

[0021] The top of the housing 1 is equipped with a protective component 6, which includes a moving groove 601, a slider 602, a rubber frame 603, a protective frame 604, a spring telescopic column 605, a moving plate 606, and a screen cleaning cotton 607. The top surface of the housing 1 has two movable grooves 601 at both ends. A slider 602 is slidably connected inside the movable groove 601. A rubber frame 603 is glued to the outside of the slider 602. The tops of two sliders 602 are connected by a protective frame 604. Spring telescopic columns 605 are evenly installed inside the protective frame 604 by screws. The bottoms of several spring telescopic columns 605 are connected by a movable plate 606. A screen cleaning cotton 607 is glued to the bottom surface of the movable plate 606.

[0022] The screen cleaning cotton 607 is located on the touch screen 2, with the top surface of the touch screen 2 in contact with the bottom surface of the screen cleaning cotton 607, which facilitates cleaning of the touch screen 2 and ensures the cleanliness of the touch screen 2.

[0023] The slider 602 has a T-shaped longitudinal section to prevent it from falling off, which in turn prevents the protective frame 604 from falling off.

[0024] Place the connecting cable 7 of the touch screen 2 inside the moving frame 502, move the pressing plate 504 so that the rubber plate 505 on the bottom of the pressing plate 504 fits against the surface of the connecting cable 7, and then tighten the fixing screw 507 between the pressing plate 504 and the moving frame 502. The connecting cable 7 is fixed inside the moving frame 502 by the elastic compression of the rubber plate 505 to prevent the connecting cable 7 from loosening. When the connecting cable 7 is pulled by an external force, the pulling force drives the moving frame 502 to slide along the limiting rod 503. The moving frame 502 compresses or stretches the buffer spring 501 at one end of the protective box 3. The buffer spring 501 absorbs the pulling force through its own elastic deformation to prevent the pulling force from acting directly on the interface between the connecting cable 7 and the touch screen 2, preventing the connecting cable 7 from breaking or the interface from loosening. The limiting rod 503 is inside the buffer spring 501, which can prevent the buffer spring 501 from bending and ensure stable buffering effect. When the touchscreen 2 is not in use, the protective frame 604 covers the surface of the touchscreen 2 and is fixed to the T-shaped slider 602 via the moving groove 601 on the top surface of the housing 1, preventing external objects from directly impacting the touchscreen 2. The rubber frame 603 on the outside of the slider 602 can further buffer the impact force and reduce frictional damage between the protective frame 604 and the housing 1. When the touchscreen 2 needs to be cleaned, the protective frame 604 is pushed, and the protective frame 604 drives the slider 602 to slide along the moving groove 601. At the same time, the spring telescopic column 605 inside the protective frame 604 pushes the moving plate 606 down, so that the screen cleaning cotton 607 on the bottom surface of the moving plate 606 fits tightly against the surface of the touchscreen 2. During the sliding process of the protective frame 604, the screen cleaning cotton 607 automatically wipes away dust, fingerprints and other stains on the surface of the touchscreen 2, completing the cleaning. The spring telescopic column 605 can adaptively adjust the pressure according to the flatness of the touchscreen 2 surface to ensure the cleaning effect while avoiding scratching the screen.

[0025] When the touch screen 2 is subjected to an external impact, the protective box 3 first bears the impact force. The buffer pad 401 inside the protective box 3 absorbs part of the impact force through its own deformation. The rubber pad 402 inside the buffer pad 401 and the hexagonal groove 403 on the end face further disperse the impact force, preventing the impact force from being concentrated and transmitted to the housing 1 and the touch screen 2. At the same time, the fixing post 404 on the bottom surface of the housing 1 is inserted into the fixing cylinder 405 of the protective box 3, which enhances the connection stability between the housing 1 and the protective box 3, reduces relative displacement, and further reduces impact damage. The heat generated by the touch screen 2 during operation is transferred to the housing 1, and then conducted through the fixing post 404 of the housing 1 to the fixing cylinder 405 of the protective box 3. The air outlet 406 at the bottom of the fixing cylinder 405 guides the heat into the hexagonal groove 403 of the rubber pad 402. After the heat diffuses in the hexagonal groove 403, it is discharged through the buffer pad 401 and the heat dissipation groove 407 of the protective box 3. When dissipating heat, the external airflow pushes the valve 408 in the heat dissipation groove 407 to open, accelerating the heat dissipation. When there is no need for heat dissipation, the valve 408 automatically closes to prevent dust from entering. The filter screen 409 in the heat dissipation groove 407 can block external impurities and prevent dust accumulation from affecting heat dissipation.

[0026] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A capacitive touch screen with impact resistance function, comprising a housing (1), wherein a touch screen (2) is disposed inside the housing (1), and a connecting line (7) is disposed at one end of the touch screen (2). Its features are: The outer side of the housing (1) is provided with a protective box (3). Inside the protective box (3) are a buffer pad (401) and a rubber pad (402) for cushioning the touch screen (2) and resisting impact. Inside the protective box (3) are a valve (408) and a filter screen (409) for blocking dust. One end of the protective box (3) is provided with a movable frame (502) and a pressing plate (504) for clamping and fixing the connecting wire (7). The end of the protective box (3) is provided with a buffer spring (501) for cushioning the connecting wire (7).

2. A capacitive touchscreen with impact resistance according to claim 1, characterized in that, The outer side of the housing (1) is provided with a protective box (3), and the protective box (3) is equipped with an impact-resistant heat dissipation component (4). The impact-resistant heat dissipation component (4) includes a buffer pad (401), a rubber pad (402), a hexagonal groove (403), a fixing post (404), a fixing cylinder (405), an air outlet (406), a heat dissipation groove (407), a valve (408), and a filter screen (409). The protective box (3) has a buffer pad (401) bonded inside, and a rubber pad (402) bonded inside the buffer pad (401). The end face of the rubber pad (402) has a hexagonal groove (403). The bottom surface of the shell (1) is uniformly provided with fixing posts (404). The protective box (3) has a fixing cylinder (405) uniformly provided inside. The bottom of the fixing cylinder (405) has an air outlet (406) uniformly provided. The buffer pad (401) and the protective box (3) are both provided with heat dissipation grooves (407) on the outside. The heat dissipation grooves (407) are provided with valves (408) inside. The heat dissipation grooves (407) are provided with a filter screen (409) at one end.

3. A capacitive touchscreen with impact resistance according to claim 2, characterized in that, The fixed column (404) is located inside the fixed cylinder (405), and the air outlet (406) and the hexagonal groove (403) are positioned to correspond to each other.

4. A capacitive touchscreen with impact resistance according to claim 1, characterized in that, The protective box (3) is provided with a fixed buffer assembly (5) at one end. The fixed buffer assembly (5) includes a buffer spring (501), a moving frame (502), a limiting rod (503), a pressing plate (504), a rubber plate (505), a limiting post (506), and a fixing screw (507). The protective box (3) is uniformly provided with buffer springs (501) at one end. Several buffer springs (501) are connected at one end through a movable frame (502). A limit rod (503) is slidably connected inside the movable frame (502). The limit rod (503) is fixedly installed at one end of the protective box (3). A limit post (506) is slidably connected inside one end of the movable frame (502). A pressing plate (504) is fixedly connected to the top of the limit post (506). A rubber plate (505) is glued to the bottom surface of the pressing plate (504). The pressing plate (504) and the movable frame (502) are connected by a fixing screw (507).

5. A capacitive touchscreen with impact resistance according to claim 4, characterized in that, The connecting line (7) is inside the moving frame (502), and the limiting rod (503) is inside the buffer spring (501).

6. A capacitive touchscreen with impact resistance according to claim 1, characterized in that, The top of the housing (1) is equipped with a protective component (6), which includes a moving groove (601), a slider (602), a rubber frame (603), a protective frame (604), a spring telescopic column (605), a moving plate (606), and a screen cleaning cotton (607). The housing (1) has movable grooves (601) at both ends of its top surface. A slider (602) is slidably connected inside the movable groove (601). A rubber frame (603) is glued to the outside of the slider (602). The tops of two sliders (602) are connected by a protective frame (604). Spring telescopic columns (605) are evenly installed inside the protective frame (604) by screws. The bottoms of several spring telescopic columns (605) are connected by a movable plate (606). Screen cleaning cotton (607) is glued to the bottom surface of the movable plate (606).

7. A capacitive touchscreen with impact resistance according to claim 6, characterized in that, The screen cleaning cotton (607) is located on the touch screen (2), and the top surface of the touch screen (2) is in contact with the bottom surface of the screen cleaning cotton (607).

8. A capacitive touchscreen with impact resistance according to claim 6, characterized in that, The slider (602) has a T-shaped longitudinal section.

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