Narrow-frame capacitive screen

Abstract

The utility model relates to the field of capacitive screens, and discloses a narrow-frame capacitive screen which comprises a light-emitting screen and a packaging frame, the packaging frame is packaged on the periphery of the light-emitting screen, four sets of side rods are fixedly connected to the rear end of the packaging frame, and each set of side rods and the packaging frame are fixedly connected through connecting screws respectively. A plurality of sets of rod grooves are evenly formed in the side rods, fixing feet are fixedly connected into the rod grooves, and inner holes are formed in the fixing feet. According to the narrow-frame capacitive screen, the side rods are arranged, each set of fixing feet are fixedly connected to the inner side of the machine panel and fixed through the fixing screws, so that the packaging frame abuts against the screen reserved groove of the machine panel, after assembly, only the narrow packaging frame is reserved as the frame when viewed from the front face of the machine panel, and the packaging frame is not prone to falling off. The light-emitting screen cannot be collided and damaged due to the fact that the packaging frame is too narrow, hidden fixing is achieved, the installation stability and the visual effect are both considered, and the problem that the installation stability of a narrow frame is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitive screens, and particularly relates to a narrow-border capacitive screen. Background Technique

[0002] The capacitive screen is a common touch screen technology, which is widely used in fields such as smart phones, tablet computers, smart home devices, and industrial control panels. The capacitive screen realizes the control and operation of the device by sensing the touch of a finger or a capacitive pen. With the development of technology, users have put forward higher requirements for the display effect and user experience of capacitive screens, and the narrow-border design has gradually become a trend.

[0003] Although the narrow-border design can maximize the display area of the screen and bring better visual effects, there are also some defects in the narrow-border capacitive screens for existing machine operation panels on the market. First of all, the existing narrow-border capacitive screens usually adopt pasting or simple screw fixing methods, and the fixing is not firm, and it is easy to loosen during use. Due to the too narrow border design, the encapsulation border has insufficient protection for the light-emitting screen, and it is easy to cause screen damage due to bumps during installation or use, resulting in poor balance between the visual effect and installation stability of the narrow border, and the installation stability is poor.

[0004] Therefore, a narrow-border capacitive screen is needed to solve the above technical defects. Content of the Utility Model

[0005] The purpose of the utility model is to provide a narrow-border capacitive screen to solve the problem of poor installation stability due to the too narrow border design mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a narrow-border capacitive screen, including a light-emitting screen and an encapsulation border. The light-emitting screen is encapsulated by the encapsulation border around it. Four groups of side bars are fixedly connected to the rear end of the encapsulation border. Each group of side bars is fixedly connected to the encapsulation border by a connecting screw. A plurality of groups of rod grooves are evenly opened in the side bars. A fixing foot is fixedly connected in the rod grooves. An inner hole is opened in the fixing foot. A fixing screw is installed in the inner hole. The fixing foot is fixedly connected to the machine panel through the inner hole.

[0007] Preferably, there are four groups of side bars, and the width of each group of side bars is less than the thickness of the encapsulation border.

[0008] Preferably, the fixing feet are evenly distributed at equal intervals on the four sides of the encapsulation border, and the number of fixing feet is set according to the size of the screen slot reserved on the machine panel.

[0009] Preferably, a circuit board is electrically connected to the rear end of the light-emitting screen, and a solder pad is adhesively fixed between the light-emitting screen and the circuit board.

[0010] Preferably, a through groove is provided below the rear end of the light-emitting screen, and a heat dissipation groove is communicated below the through groove.

[0011] Preferably, a radiator is installed at the rear end of the light-emitting screen. A dust-proof net is fixedly assembled outside the radiator. A fixing rod is provided below the radiator. The fixing rod is fixed to the rear end of the light-emitting screen, and multiple groups of guide rods are arranged at the fixing rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: This narrow-bezel capacitive screen not only realizes hidden fixation, takes into account installation stability and visual effects, facilitates disassembly, installation and maintenance in the later stage, but also realizes synchronous heat dissipation for the circuit board and the light-emitting screen, reduces the number of radiators, and ensures the working temperature.

[0013] (1) By providing side bars, fixing feet, a packaging frame, and fixing screws, side bars are additionally installed at the rear end of the packaging frame of this capacitive screen. Multiple fixing feet are fixed through the side bars. Each group of fixing feet is fixedly connected to the inner side of the machine panel and fixed with fixing screws, so that the packaging frame is pressed against the screen reserved groove of the machine panel. After assembly, while strengthening the connection and fixation through multiple fixing feet, only a relatively narrow packaging frame remains as the border when viewed from the front of the machine panel, and the light-emitting screen will not be damaged by knocking due to the too-narrow packaging frame, realizing hidden fixation and taking into account installation stability and visual effects.

[0014] (2) By providing side bars, bar grooves, connection screws, and a packaging frame, each group of fixing feet is welded in the bar grooves of the side bars, arranged at equal intervals, and the side bars are fixed to the rear end of the packaging frame through connection screws. If the fixing feet dry out and break due to human reasons or after long-term fixation, a certain group of side bars can be disassembled from the packaging frame, and new side bars or side bars adapted to the installation distance of the machine panel can be replaced, facilitating disassembly, installation and maintenance in the later stage.

[0015] (3) By providing a radiator and a heat dissipation groove, at the rear end of the light-emitting screen, the circuit board is fixedly bonded through solder pads. A radiator is provided above the circuit board. When a large amount of heat is generated during the operation of the capacitors in the light-emitting screen, when the radiator rotates at high speed to attract external air flow, a part of the air flow is sucked in through the heat dissipation groove, passes through the circuit board and then is guided by the guide rods and finally blown towards the light-emitting screen by the radiator. Through the diversion design, synchronous heat dissipation for the circuit board and the light-emitting screen can be realized, the number of radiators is reduced, and the working temperature is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view structural diagram of the present utility model;

[0017] Figure 2 is an assembly structural diagram of the present utility model;

[0018] Figure 3 Schematic diagram of the rear view structure of the present utility model;

[0019] Figure 4 Schematic diagram of the side view structure of the present utility model.

[0020] In the figure: 1, light-emitting screen; 2, encapsulation frame; 3, fixing feet; 4, inner hole; 5, machine panel; 6, fixing screws; 7, connecting screws; 8, side bars; 9, bar grooves; 10, heat dissipation grooves; 11, through grooves; 12, welding pads; 13, circuit board; 14, fixing rods; 15, diversion rods; 16, dust-proof net; 17, radiator. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figures 1-4 , a narrow-bezel capacitive screen, including a light-emitting screen 1 and an encapsulation frame 2. The light-emitting screen 1 is encapsulated by the encapsulation frame 2 around. Four groups of side bars 8 are fixedly connected to the rear end of the encapsulation frame 2. Each group of side bars 8 is fixedly connected to the encapsulation frame 2 by a connecting screw 7. A plurality of bar grooves 9 are evenly opened in the side bars 8. Fixing feet 3 are fixedly connected in the bar grooves 9. Inner holes 4 are opened in the fixing feet 3. Fixing screws 6 are installed in the inner holes 4. The fixing feet 3 are fixedly connected to the inside of the machine panel 5 through the inner holes 4. There are four groups of side bars 8, and the width of each group of side bars 8 is smaller than the thickness of the encapsulation frame 2;

[0023] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , side bars 8 are additionally installed at the rear end of the encapsulation frame 2 of the capacitive screen. A plurality of fixing feet 3 are fixed by the side bars 8. Each group of fixing feet 3 is fixedly connected to the inner side of the machine panel 5 and fixed by fixing screws 6, so that the encapsulation frame 2 is pressed against the screen reserved groove of the machine panel 5. After assembly, while strengthening the connection and fixation through a plurality of fixing feet 3, only a relatively narrow encapsulation frame 2 remains as the border when viewed from the front of the machine panel 5, and the light-emitting screen 1 will not be damaged by bumping due to the too narrow encapsulation frame 2, realizing hidden fixation.

[0024] Embodiment 2: The fixing feet 3 are evenly distributed at equal intervals on the four sides of the encapsulation frame 2, and the number of fixing feet 3 is set according to the size of the screen groove reserved on the machine panel 5;

[0025] Specifically, as shown inFigure 1 , Figure 2 , Figure 3 and Figure 4 As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , each group of fixed feet 3 is welded in the rod groove 9 of the side rod 8, arranged at equal intervals. The side rod 8 is fixed to the rear end of the encapsulation frame 2 through the connecting screw 7. If the fixed feet 3 dry and break due to human reasons or after long-term fixation, a certain group of side rods 8 can be disassembled from the encapsulation frame 2, and a new side rod 8 or a side rod 8 adapted to the installation distance of the machine panel 5 can be replaced.

[0026] Embodiment 3: A circuit board 13 is electrically connected to the rear end of the light-emitting screen 1. A solder pad 12 is adhesively fixed between the light-emitting screen 1 and the circuit board 13. A through groove 11 is provided below the rear end of the light-emitting screen 1, and a heat dissipation groove 10 is communicated below the through groove 11. A radiator 17 is installed at the rear end of the light-emitting screen 1. A dust-proof net 16 is fixedly assembled outside the radiator 17. A fixing rod 14 is provided below the radiator 17, and the fixing rod 14 is fixed to the rear end of the light-emitting screen 1. Multiple groups of guiding rods 15 are arranged at the fixing rod 14;

[0027] Specifically, as shown in Figure 1 and Figure 2 , at the rear end of the light-emitting screen 1, the circuit board 13 is adhesively fixed through the solder pad 12. A radiator 17 is provided above the circuit board 13. When a large amount of heat is generated during the operation of the capacitors in the light-emitting screen 1, when the radiator 17 rotates at high speed to attract external air flow, a part of the air flow is inhaled through the heat dissipation groove 10, passes through the circuit board 13 and then is guided by the guiding rods 15 and finally blown to the light-emitting screen 1 by the radiator 17. Through the guiding design, synchronous heat dissipation of the circuit board 13 and the light-emitting screen 1 can be achieved.

[0028] Working principle: During assembly, the light-emitting screen 1 is aligned with the reserved screen slot of the machine panel 5. Each group of fixed feet 3 is fixedly connected to the inner side of the machine panel 5 and fixed with the fixing screw 6, so that the encapsulation frame 2 is tightly pressed against the screen reserved slot of the machine panel 5. After assembly, while strengthening the connection and fixation through multiple fixed feet 3, only a relatively narrow encapsulation frame 2 remains as the border when viewed from the front of the machine panel 5. Each group of fixed feet 3 is welded in the rod groove 9 of the side rod 8, arranged at equal intervals. The side rod 8 is fixed to the rear end of the encapsulation frame 2 through the connecting screw 7. If the fixed feet 3 dry and break due to human reasons or after long-term fixation, a certain group of side rods 8 can be disassembled from the encapsulation frame 2, and a new side rod 8 or a side rod 8 adapted to the installation distance of the machine panel 5 can be replaced. At the rear end of the light-emitting screen 1, the circuit board 13 is adhesively fixed through the solder pad 12. A radiator 17 is provided above the circuit board 13. When a large amount of heat is generated during the operation of the capacitors in the light-emitting screen 1, when the radiator 17 rotates at high speed to attract external air flow, a part of the air flow is inhaled through the heat dissipation groove 10, passes through the circuit board 13 and then is guided by the guiding rods 15 and then enters the dust-proof net 16, and finally blows to the light-emitting screen 1. Through the guiding design, synchronous heat dissipation of the circuit board 13 and the light-emitting screen 1 can be achieved.​​​​

[0029] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A narrow-frame capacitive screen, comprising a light-emitting screen (1) and a packaging frame (2), characterized in that: The luminous screen (1) is surrounded by a sealing frame (2), and the rear end of the sealing frame (2) is fixedly connected with four groups of side rods (8), and each group of side rods (8) is fixedly connected to the sealing frame (2) by a connecting screw (7). A plurality of groups of rod grooves (9) are evenly arranged in the side rods (8), and a fixing foot (3) is fixedly connected in the rod groove (9). An inner hole (4) is arranged in the fixing foot (3), and a fixing screw (6) is installed in the inner hole (4). The fixing foot (3) is fixedly connected to the machine panel (5) through the inner hole (4).

2. The narrow-frame capacitive touch screen according to claim 1, characterized in that: The side bars (8) are arranged in four groups, and the width of each group of side bars (8) is smaller than the thickness of the packaging frame (2).

3. The narrow-frame capacitive touch screen according to claim 1, characterized in that: The fixing feet (3) are distributed at equal intervals on the four sides of the packaging frame (2), and the number of the fixing feet (3) is set according to the size of the screen slot reserved by the machine panel (5).

4. The narrow-frame capacitive touch screen according to claim 1, characterized in that: The rear end of the light-emitting screen (1) is electrically connected to a circuit board (13), and a welding piece (12) is bonded and fixed between the light-emitting screen (1) and the circuit board (13).

5. The narrow-frame capacitive touch screen according to claim 1, characterized in that: A through groove (11) is provided below the rear end of the light-emitting screen (1), and a heat dissipation groove (10) is connected below the through groove (11).

6. The narrow-frame capacitive touch screen according to claim 1, characterized in that: A radiator (17) is installed at the rear end of the light-emitting screen (1), a dustproof net (16) is fixedly installed on the outside of the radiator (17), a fixing rod (14) is arranged below the radiator (17), the fixing rod (14) is fixed at the rear end of the light-emitting screen (1), and a plurality of groups of guide rods (15) are arranged at the fixing rod (14).

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