Protective structure for EMI (Electro-Magnetic Interference) of aviation touch panel

Abstract

The utility model relates to the technical field of touch panels, and discloses an aviation touch panel EMI protection structure which comprises a back frame, a wiring assembly is arranged in the back frame, conductive silver paste is arranged on the edge of the wiring assembly, a face frame is arranged on the front face of the back frame, a touch panel is arranged on the face frame, and the touch panel is arranged on the back frame. A transparent conductive film is arranged on the inner side of the touch panel, an EMI adhesive tape is arranged below the transparent conductive film, and the transparent conductive film is connected with a wiring assembly through a connector. The EMI adhesive tape is directly connected below the transparent conductive film of the touch panel, so that the propagation path of an electromagnetic interference signal is reduced, and the EMI protection efficiency is improved. Meanwhile, the use of the FPC is reduced, so that the cost is reduced, the weight is reduced, and the compactness of the structure is improved. In addition, the protection structure can still keep good conductivity in an extreme environment, and stability and reliability of the touch panel in various complex environments are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of touch panels, in particular to an EMI protection structure for a touch panel used in aviation. Background Art

[0002] In the aviation industry, touch panels are a crucial component of human-machine interaction, and their performance stability and reliability are crucial. However, the complex interior environment of aircraft is particularly prone to electromagnetic interference (EMI), which can severely impact the proper functioning of touch panels. EMI protection for traditional aviation touch panels typically requires coating the back of the panel with a conductive silver paste, which is then routed through a flexible printed circuit board (FPC) and connected to the control panel's ground wire. This method directs EMI signals to the ground wire, minimizing interference and damage to the touch panel's functionality.

[0003] However, this protective structure has some limitations, such as increasing the thickness of the touch panel, reducing the compactness of the structure, and may affect the conductive properties of the conductive silver paste in extreme environments, thereby affecting the EMI protection effect.

[0004] Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop an EMI protection structure for touch panels for aviation. Utility Model Content

[0005] The purpose of the present utility model is to provide an EMI protection structure for a touch panel used in aviation, so as to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A technical solution for the EMI protection structure of an aviation touch panel includes a back frame, a wiring assembly is arranged inside the back frame, and conductive silver paste is arranged at the edge of the wiring assembly. A face frame is arranged on the front of the back frame, and a touchpad is arranged on the face frame. A transparent conductive film is arranged on the inside of the touchpad, and EMI tape is arranged below the transparent conductive film. The transparent conductive film is connected to the wiring assembly through a connector.

[0008] As a preferred technical solution, an interface and a cable are provided on the back of the wiring assembly.

[0009] As a preferred technical solution, a sealing strip is provided between the face frame and the back frame to ensure the sealing performance of the touch panel.

[0010] As a preferred technical solution, a metal shielding layer is provided on the outer edge of the touch panel, and the metal shielding layer cooperates with the EMI tape to further enhance the protection capability against electromagnetic interference.

[0011] As a preferred technical solution, the surface of the touch panel is further coated with an anti-scratch layer to improve the durability and damage resistance of the panel.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The present utility model is a protective structure for EMI of a touch panel for aviation. The EMI tape provided is directly connected to the bottom of the transparent conductive film of the touch panel, thereby reducing the propagation path of the electromagnetic interference signal and improving the EMI protection efficiency. At the same time, since the use of FPC is reduced, not only the cost is reduced, but also the weight is reduced, and the compactness of the structure is improved. In addition, the protective structure of the present utility model can still maintain good conductive properties under extreme environments, ensuring the stability and reliability of the touch panel in various complex environments. By providing a metal shielding layer on the outer edge of the touch panel, the protection capability against electromagnetic interference is further enhanced, ensuring that the performance of the touch panel for aviation is not affected by electromagnetic interference. The coating of the anti-scratch layer improves the durability and damage resistance of the panel, extends the service life of the panel, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an aviation touch panel EMI protection structure;

[0015] Figure 2 A schematic diagram of the back structure of an aviation touch panel EMI protection structure;

[0016] Figure 3 A schematic diagram of the internal structure of an aviation touch panel EMI protection structure.

[0017] In the accompanying drawings: 11, back frame; 12, face frame; 13, touch panel; 2, wiring assembly; 21, conductive silver paste; 22, interface; 23, cable; 24, EMI tape; 25, connector; 26, transparent conductive film. DETAILED DESCRIPTION

[0018] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0019] like Figure 1 、 Figure 2 、 Figure 3 As shown, the present invention provides a technical solution for the EMI protection structure of an aviation touch panel, which includes a back frame 11. The back frame 11 has a space inside for accommodating the wiring assembly 2, and a coating area for the conductive silver paste 21 is reserved at the edge.

[0020] The wiring assembly 2 is mounted inside the back frame 11 and includes a conductive silver paste 21, an interface 22, and a flat cable 23. The conductive silver paste 21 is used to connect to the transparent conductive film 26 of the touch panel 13, the interface 22 is used to connect to the external circuit, and the flat cable 23 connects the interface 22 to the conductive silver paste 21.

[0021] A face frame 12 is mounted on the front of the back frame 11. A sealing strip is provided between the face frame 12 and the back frame 11 to ensure the sealing performance of the touch panel. The face frame 12 is slightly larger than the touch panel 13 to facilitate fixing the touch panel 13.

[0022] The touch panel 13 is placed in the face frame 12, and a transparent conductive film 26 is provided on the inner side of the touch panel 13. An EMI tape 24 is provided under the transparent conductive film 26 to enhance the EMI protection effect.

[0023] The transparent conductive film 26 is connected to the conductive silver paste 21 through the connector 25 , ensuring that the EMI signal of the touch panel 13 can be transmitted to the wiring assembly 2 through the conductive silver paste 21 .

[0024] An EMI tape 24 is installed under the transparent conductive film 26 and is used in conjunction with the metal shielding layer to further enhance the protection against electromagnetic interference.

[0025] A metal shielding layer is provided on the outer edge of the touch panel 13 , and the shielding layer cooperates with the EMI tape 24 to form a closed electromagnetic interference protection area.

[0026] An anti-scratch layer is coated on the surface of the touch panel 13 to improve the durability and damage resistance of the panel.

[0027] The utility model provides an EMI protection structure for a touch panel for aviation, which not only improves the EMI protection efficiency, but also reduces the weight, improves the compactness of the structure, and ensures the stability and reliability of the touch panel in various complex environments.

[0028] The working principle and use process of the present invention: After assembling the various components of the present invention in sequence, all the working steps can be completed by working in accordance with the above implementation methods in sequence according to actual needs.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] While the embodiments described above are based on the present invention, these embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Clearly, many modifications and variations are possible based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications and uses. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A protective structure for EMI of a touch panel for aviation, characterized in that: The invention comprises a back frame (11), wherein a wiring assembly (2) is arranged in the back frame (11), a conductive silver paste (21) is arranged at the edge of the wiring assembly (2), a face frame (12) is arranged on the front of the back frame (11), a touch panel (13) is arranged on the face frame (12), a transparent conductive film (26) is arranged on the inner side of the touch panel (13), an EMI tape (24) is arranged below the transparent conductive film (26), and the transparent conductive film (26) is connected to the wiring assembly (2) via a connector (25).

2. The EMI protection structure for an aviation touch panel according to claim 1, characterized in that: The back of the wiring assembly (2) is provided with an interface (22) and a flat cable (23).

3. The EMI protection structure for an aviation touch panel according to claim 1, characterized in that: A sealing strip is provided between the face frame (12) and the back frame (11) to ensure the sealing performance of the touch panel.

4. The EMI protection structure for an aviation touch panel according to claim 1, characterized in that: A metal shielding layer is provided on the outer edge of the touch panel (13), and the metal shielding layer cooperates with the EMI tape (24) to further enhance the protection capability against electromagnetic interference.

5. The EMI protection structure for an aviation touch panel according to claim 4, characterized in that: The surface of the touch panel (13) is also coated with an anti-scratch layer to improve the durability and damage resistance of the panel.

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