Anti-interference capacitive touch screen mounting structure

Abstract

The utility model provides an anti-interference capacitive touch screen installation structure, which relates to the technical field of touch screens and comprises a structural member, a concave groove is arranged in the middle of the structural member, a plurality of installation protrusions are symmetrically arranged in the concave groove, the top of each installation protrusion is connected with a first insulation spacer, and a driving plate is placed on the top of each first insulation spacer. A second insulating spacer is arranged at the corresponding position of the top of the driving plate, a fixing screw is arranged at the top of the second insulating spacer, and the fixing screw sequentially penetrates through the second insulating spacer, the driving plate and the first insulating spacer to be detachably connected with the mounting protrusion at the bottom; the utility model relates to a touch driver board, which is used for solving the technical problem that the touch driver board is easily subjected to interference signals from a product shell ground and the touch function is influenced because the touch driver board is generally locked on a structural member to form a whole by directly using four screws and then the structural member is wrapped in the traditional touch driver board assembly scheme at present.

Description

Technical Field

[0001] This utility model mainly relates to the field of touch screen technology, specifically to an anti-interference capacitive touch screen mounting structure. Background Technology

[0002] Capacitive touchscreens recognize touch actions by absorbing the electrical current from the human body. A capacitive touchscreen is made by etching different ITO conductive circuit modules (sensor functional pieces) onto two layers of ITO conductive glass coating. The etched patterns on the two ITO layers are perpendicular to each other, and can be viewed as sliders that continuously change in the X and Y directions.

[0003] Since the X and Y structures are on different surfaces, a capacitor node is formed at their intersection. One slider can be used as a drive line, and the other slider can be used as a detection line. When current passes through one of the drive lines, if there is an external signal that affects the change in capacitance (touch), it will cause a change in the capacitor node on the other layer of wires. After the touch screen driver board (5) detects the change in capacitance, it determines that there is a touch action.

[0004] Capacitive touchscreens are easily affected by the environment. Changes in power supply, signal, electromagnetic environment, and usage scenarios can all cause touchscreen parameter drift to varying degrees. During TP module production, a sensor test is performed to check for touch functionality abnormalities, and a new flatness table is established. When establishing this new flatness table, a balancing algorithm is applied to the signal flatness of the entire product, compensating for the signal values ​​across the entire touch panel surface. If the touch panel itself has good flatness, the overall signal value is uniform and has sufficient redundancy. If the touch panel has poor flatness, and the software cannot fully compensate, localized high signal levels may occur. When significant changes occur in the working environment around the product casing (electromagnetic environment changes, signal changes, etc.), the areas with high signal levels are interfered with, causing numerical fluctuations that exceed the software's tolerance range, leading to false alarms and touch jump point malfunctions.

[0005] During the operation of specific embodiments, the inventors discovered the following defects:

[0006] Traditional touch driver board assembly methods typically involve directly securing it to a structural component using four screws to form a single unit, and then encasing the component. Using this method, the touch driver board is highly susceptible to interference signals from the product casing, affecting touch functionality and causing issues such as touch skipping and disconnection.

[0007] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0008] 1. The technical problem to be solved by the utility model:

[0009] This utility model provides an anti-interference capacitive touch screen mounting structure to solve the technical problems existing in the background art.

[0010] 2. Technical Solution:

[0011] To achieve the above objectives, the technical solution provided by this utility model is as follows: an anti-interference capacitive touchscreen mounting structure, comprising a structural component, a concave groove in the middle of the structural component, and a plurality of mounting protrusions symmetrically arranged in the concave groove. A first insulating pad is connected to the top of the mounting protrusion, a driver board is placed on the top of the first insulating pad, and a second insulating pad is placed at the corresponding position on the top of the driver board. A fixing screw is provided on the top of the second insulating pad, and the fixing screw passes through the second insulating pad, the driver board, and the first insulating pad in sequence and is detachably connected to the mounting protrusion at the bottom. This device, by placing an insulating pad above and below the fixing screw, separates and suspends the touch driver board from the housing, greatly reducing interference from the product housing and the external environment, thereby making the touch experience smoother and effectively solving the problems of touch jumps and disconnections.

[0012] The mounting protrusions are provided in four shapes, arranged in a rectangular pattern.

[0013] The mounting hole of the mounting protrusion is connected to an annular support pad, on which the first insulating pad can be placed. The thickness of the first insulating pad is greater than that of the annular support pad.

[0014] The fixing screws are plastic insulated screws.

[0015] The first insulating pad and the second insulating pad are made of rubber insulating material.

[0016] The structural component is equipped with a touch controller, which is electrically connected to the driver board via a touch strip.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] This utility model has a reasonable design. It uses insulating pads at the top and bottom of the four positioning holes of the touch driver board to insulate and suspend it from the casing, which solves the problems of touch jump and disconnection of the touch screen under harsh environment.

[0020] This design greatly improves the touch screen's touch effect and enhances its touch performance when used in harsh environments such as high and low temperatures, humidity, and electromagnetic interference.

[0021] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the mounting protrusion structure of this utility model.

[0025] Figure label:

[0026] 1. Structural component; 2. Concave groove; 3. Mounting protrusion; 31. Annular support pad; 4. First insulating pad; 5. Drive board; 6. Second insulating pad; 7. Fixing screw; 8. Touch controller; 9. Touch soft strip. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0031] See attached document Figure 1-3 An anti-interference capacitive touchscreen mounting structure includes a structural component 1. A concave groove 2 is formed in the center of the structural component 1. Multiple mounting protrusions 3 are symmetrically arranged within the concave groove 2. A first insulating pad 4 is connected to the top of each mounting protrusion 3. A driver board 5 is placed on top of the first insulating pad 4. A second insulating pad 6 is placed at a corresponding position on the top of the driver board 5. A fixing screw 7 is provided on the top of the second insulating pad 6. The fixing screw 7 passes sequentially through the second insulating pad 6, the driver board 5, and the first insulating pad 4, and is detachably connected to the mounting protrusion 3 at the bottom. This device, by placing an insulating pad above and below the fixing screw 7, separates and suspends the touch driver board 5 from the casing, greatly reducing interference from the product casing and the external environment, resulting in smoother touch operation and effectively solving touch jump and disconnection phenomena.

[0032] The mounting protrusions 3 are provided in four rectangular arrangements. The rectangular mounting protrusions 3, together with the fixing screws 7, can provide good support and limit the drive plate 5. It should be noted that in order to further improve the stability of the drive plate 5, multiple mounting protrusions 3 can be provided as needed. The number of mounting protrusions 3 is not a unique limitation in this embodiment.

[0033] The mounting hole of the mounting protrusion 3 is connected to an annular support pad 31. The first insulating pad 4 can be placed on the annular support pad 31. The thickness of the first insulating pad 4 is greater than that of the annular support pad 31. The annular support pad 31 facilitates the quick installation of the first insulating pad 4.

[0034] The fixing screw 7 is a plastic insulated screw, made of a highly insulating mechanical plastic. This plastic has good insulation and mechanical properties, further reducing interference signals from the product casing.

[0035] The first insulating pad 4 and the second insulating pad 6 are made of rubber insulating material, which has sufficient insulation performance, high temperature resistance and corrosion resistance, etc., or they can be made of other insulating materials.

[0036] The structural component 1 is equipped with a touch controller 8, which is electrically connected to the driver board 5 via a touch soft strip 9. The touch controller 8 adopts existing technology and is responsible for receiving and processing analog signals from the driver board 5 and converting them into digital signals for subsequent processing.

[0037] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An anti-interference capacitive touchscreen mounting structure, characterized in that: The device includes a structural component (1), which has a concave groove (2) in the middle. Multiple mounting protrusions (3) are symmetrically arranged in the concave groove (2). The top of the mounting protrusions (3) is connected to a first insulating pad (4). A drive plate (5) is placed on the top of the first insulating pad (4). A second insulating pad (6) is placed at the corresponding position on the top of the drive plate (5). A fixing screw (7) is provided on the top of the second insulating pad (6). The fixing screw (7) passes through the second insulating pad (6), the drive plate (5), and the first insulating pad (4) in sequence and is detachably connected to the mounting protrusions (3) at the bottom.

2. The anti-interference capacitive touchscreen mounting structure according to claim 1, characterized in that: The mounting protrusions (3) are provided in four shapes, and the four mounting protrusions (3) are arranged in a rectangular shape.

3. The anti-interference capacitive touchscreen mounting structure according to claim 1, characterized in that: The mounting hole of the mounting protrusion (3) is connected to an annular support pad (31), and the first insulating pad (4) is placed on the annular support pad (31). The thickness of the first insulating pad (4) is greater than that of the annular support pad (31).

4. The anti-interference capacitive touchscreen mounting structure according to claim 1, characterized in that: The fixing screw (7) is a plastic insulated screw.

5. The anti-interference capacitive touchscreen mounting structure according to claim 1, characterized in that: The first insulating pad (4) and the second insulating pad (6) are made of rubber insulating material.

6. The anti-interference capacitive touchscreen mounting structure according to claim 1, characterized in that: The structural component (1) is provided with a touch controller (8), which is electrically connected to the drive board (5) via a touch soft strip (9).

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