Multi-point touch device based on modular structure

Abstract

The utility model discloses a multi-point touch device based on a modular structure. The multi-point touch device comprises a conductive handle, a touch shell, a conductive layer, a conductive assembly and an insulating bottom assembly. An adaptive mounting hole is pre-processed in the insulating bottom assembly, and the conductive assembly is embedded in the mounting hole; a conductive layer is arranged above the conductive assembly, a threaded hole is formed in the conductive assembly, and a fastener penetrates through the threaded hole of the conductive layer and is screwed into a preset screw hole of the conductive assembly; the touch shell is arranged on the conducting layer and is screwed into the threaded hole of the conducting layer by penetrating through the positioning hole in the shell through a fastener; the conductive handle is installed at the top of the touch control shell in an embedded mode, the groove in the top of the touch control shell is matched with the protrusion at the bottom of the conductive handle, static electricity transmission is achieved between the conductive handle and the conductive layer, and multi-point touch control is achieved. According to the multi-point touch device, through the modular structural design, convenient assembly and maintenance, efficient electrostatic transmission and accurate touch operation of the multi-point touch device are achieved.

Description

Technical Field

[0001] This utility model relates to the field of multi-touch technology, specifically to a multi-touch device based on a modular structure. Background Technology

[0002] In this era of rapid technological advancement, various electronic devices are widely used. Multi-touch devices, as key components of human-computer interaction, are seeing their application scenarios continuously expand, covering a wide range of fields from smart mobile devices to large-scale public display systems. However, current multi-touch devices on the market suffer from significant shortcomings in performance and structural design.

[0003] From a structural design perspective, existing multi-touch devices have a low degree of modularity. When a component malfunctions, repair or replacement is complex and costly. For example, with a common all-in-one touchscreen, if the touch sensor fails, the entire screen assembly often needs to be replaced, wasting significant time and money and resources. Furthermore, due to the high integration and poor compatibility of components, flexible configuration and functional expansion are difficult to achieve according to different usage needs and application scenarios, limiting the product's adaptability and market competitiveness. Utility Model Content

[0004] Based on the above, this application discloses a multi-touch device based on a modular structure, including: a conductive handle, a touch shell, a conductive layer, a conductive component, and an insulating bottom component;

[0005] The insulating bottom assembly is the basic component, pre-machined with matching mounting holes, into which the conductive component is embedded. Above the conductive component is a conductive layer with threaded holes corresponding to the positions of the conductive component. Fasteners are screwed into the pre-drilled holes of the conductive component through the threaded holes of the conductive layer, achieving connection and mechanical fixation between the conductive layer and the conductive component through a threaded connection. The touch shell is placed on the conductive layer, and fasteners are screwed into the threaded holes of the conductive layer through the positioning holes on the shell, completing the connection between the touch shell and the conductive layer, providing protection and support for the internal structure. The conductive handle is installed on the top of the touch shell by fitting. The groove on the top of the touch shell matches the protrusion on the bottom of the conductive handle. After a tight fit, the conductive handle and the conductive layer achieve electrostatic transmission, enabling multi-touch through the conductive component.

[0006] Preferably, the insulating bottom assembly is made of polytetrafluoroethylene insulating polymer material, including but not limited to. The insulating bottom assembly has multiple mounting holes for installing conductive components. The conductive components are installed with the insulating bottom assembly by an interference fit. The conductive components are embedded by controlling the outer diameter of the conductive components to be slightly larger than the inner diameter of the mounting holes of the insulating bottom assembly.

[0007] Preferably, the conductive component is made of copper-aluminum alloy to ensure the transmission of static current; the conductive component is cylindrical in shape, and when connected to the conductive layer, it has a threaded hole at the top, which can be used with fasteners to achieve a reliable mechanical connection and electrostatic transmission with the conductive layer.

[0008] Preferably, the conductive component integrates a micro-capacitor array, with the micro-capacitors evenly distributed inside the conductive component. When subjected to static electricity generated by touch operation, the micro-capacitor array can filter and enhance the static electricity.

[0009] Preferably, the conductive layer is made of conductive sponge, which has good conductivity in the XYZ axis directions. The conductive layer has a flat and thin shape, covering the entire multi-touch area. The lower surface of the conductive layer is tightly connected to the conductive component due to the good adhesion of the conductive sponge, realizing reliable electrical communication with the underlying component. The upper surface of the conductive layer is attached to the touch shell to provide conductive support for the entire device.

[0010] Preferably, the conductive layer surface is coated with a single-layer nanoscale graphene coating, which is uniformly covered on the conductive layer surface by chemical vapor deposition, thereby improving the conductivity of the conductive layer and enhancing the response sensitivity of multi-touch operations.

[0011] Preferably, the touch shell is made of insulating engineering plastic, including but not limited to a polymer of polycarbonate and acrylonitrile-butadiene-styrene copolymer, formed by an integrated injection molding process, with seamless overall connection; the edges of the touch shell are rounded for easy gripping and operation; the interior of the touch shell has a pre-reserved slot for fixing the conductive layer and the insulating bottom component; the top has a pre-reserved screw hole structure for fixing the conductive handle.

[0012] Preferably, the conductive handle is made of a highly conductive material that is the same as or similar to the conductive layer, and is fixedly connected to the touch shell by fitting. A groove matching the shape of the conductive handle is provided on the top of the touch shell, and a protrusion structure matching the groove is designed on the bottom of the conductive handle. The protrusion of the conductive handle is embedded into the groove on the top of the touch shell for a tight fit.

[0013] Preferably, the upper part of the conductive handle is a wide elliptical disc, which gradually narrows and becomes smaller at the bottom, transitioning into a frustum-shaped shape to the connection part with the outer shell. The lower part is adapted to the mounting groove reserved on the top of the outer shell to achieve a stable connection in a tight nesting manner.

[0014] Preferably, the conductive handle integrates a flexible circuit connection layer, which is bonded to the interior of the conductive handle through a pressing process, thereby achieving a stable electrostatic connection between the conductive handle and the internal conductive components and conductive layer.

[0015] Compared with the prior art, the technical solution of this application has the following technical effects:

[0016] This utility model is a multi-touch device based on a modular structure. Each module, including the insulating bottom component, conductive component, conductive layer, touch shell, and conductive handle, has a clear division of labor and is independent of each other. During the product assembly stage, each module only needs to be spliced ​​according to the preset installation method, which simplifies the production process and improves production efficiency.

[0017] The insulating bottom component of this invention uses insulating polymer materials such as polytetrafluoroethylene (PTFE), which effectively prevents leakage and ensures user safety. It also provides a stable insulating environment for the internal conductive components, ensuring that electrostatic transmission is not affected by external interference. The conductive components are made of highly conductive materials, and their cylindrical shape and threaded hole design at the top not only ensure efficient transmission of static current but also achieve a reliable mechanical connection with the conductive layer through cooperation with fasteners. The integrated micro-capacitor array inside the conductive components is evenly distributed. When subjected to static electricity generated by touch operation, it can filter and enhance the static signal, making the signal processing of touch operation more precise, improving touch sensitivity and accuracy, and providing timely and accurate feedback for a smooth touch experience.

[0018] The touch shell of this utility model is made of insulating engineering plastic and is formed into a seamless whole through an integrated injection molding process. This structure not only gives the shell high strength and durability, effectively resisting external impacts and friction, and protecting the internal conductive layer and other components, but also prevents dust and debris from accumulating in the gaps and affecting the device's performance. The rounded edges of the shell fully consider ergonomic principles, making it more comfortable for users to hold and operate, and reducing fatigue caused by prolonged use.

[0019] The unique structure and internal circuit design of this conductive handle greatly enhance the device's electrostatic transmission capability and ease of use. Made of a highly conductive material similar to or the same as the conductive layer, it ensures excellent conductivity. The design, with its wide, elliptical upper section and truncated cone lower section, conforms to human grip habits, facilitating user operation, while the tight nesting of the lower section with the groove on the top of the outer shell ensures a stable connection. The internally integrated flexible circuit connection layer, bonded to the internal components through a pressing process, forms a stable electrostatic connection between the conductive handle and the internal conductive components and conductive layer.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0021] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a structural diagram of a multi-touch device based on a modular structure according to the present invention;

[0024] Figure 2 This is a structural diagram of the internal microcapacitor array of the conductive component of this utility model.

[0025] Figure Labels

[0026] 1. Conductive handle; 2. Touch housing; 3. Fastener; 4. Conductive layer; 5. Conductive component; 6. Insulating bottom component. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0028] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0029] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0030] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0031] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0032] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0033] Example 1

[0034] This embodiment mainly describes a multi-touch device based on a modular structure, such as... Figure 1 As shown, it includes: a conductive handle 1, a touch housing 2, a conductive layer 4, a conductive component 5, and an insulating bottom component 6;

[0035] The insulating bottom component 6 is the basic component, with pre-machined mounting holes. The conductive component 5 is embedded in the mounting holes. Above the conductive component 5 is the conductive layer 4, which has threaded holes corresponding to the positions of the conductive components. Fasteners 3 are screwed into the pre-drilled holes of the conductive components through the threaded holes of the conductive layer, achieving connection and mechanical fixation between the conductive layer 4 and the conductive component 5 through a threaded connection. The touch shell 2 is placed on the conductive layer. Fasteners 3 are screwed into the threaded holes of the conductive layer through the positioning holes on the shell, completing the connection between the touch shell 2 and the conductive layer 4, providing protection and support for the internal structure. The conductive handle 1 is installed on the top of the touch shell 2 through an interlocking method. The groove on the top of the touch shell 2 matches the protrusion on the bottom of the conductive handle. After a tight interlocking, the conductive handle 1 and the conductive layer 4 achieve electrostatic transmission, and multi-touch is achieved through the conductive component 5.

[0036] Furthermore, the insulating bottom assembly 6 is made of polytetrafluoroethylene insulating polymer material, including but not limited to. The insulating bottom assembly 6 has multiple mounting holes for installing the conductive component 5. The conductive component 5 and the insulating bottom assembly 6 are installed by an interference fit. The conductive component is embedded by controlling the outer diameter of the conductive component to be slightly larger than the inner diameter of the mounting hole of the insulating bottom assembly.

[0037] Furthermore, the conductive component 5 is made of copper-aluminum alloy to ensure the transmission of static current; the conductive component 5 is cylindrical in shape, and when connected to the conductive layer, it has a threaded hole at the top, which can cooperate with the fastener 3 to achieve a reliable mechanical connection and electrostatic transmission with the conductive layer.

[0038] Furthermore, the conductive component 5 integrates a micro-capacitor array. The micro-capacitors are evenly distributed inside the conductive component 5. When subjected to static electricity generated by touch operation, the micro-capacitor array can filter and enhance the static electricity.

[0039] Furthermore, the conductive layer 4 is made of conductive sponge, which has good conductivity in the XYZ axis directions. The conductive layer 4 has a flat and thin shape, covering the entire multi-touch area. The lower surface of the conductive layer 4 is tightly connected to the conductive component 5 due to the good adhesion of the conductive sponge, realizing reliable electrical connection with the lower component. The upper surface of the conductive layer 4 is attached to the touch shell 2 to provide conductive support for the entire device.

[0040] Furthermore, the surface of conductive layer 4 is coated with a single layer of nanoscale graphene, which is uniformly covered on the surface of the conductive layer by chemical vapor deposition, thereby improving the conductivity of the conductive layer and enhancing the response sensitivity of multi-touch operations.

[0041] Furthermore, the touch shell 2 is made of insulating engineering plastic, including but not limited to a polymer of polycarbonate and acrylonitrile-butadiene-styrene copolymer, and is formed by an integrated injection molding process, with a seamless connection. The edges of the touch shell 2 are rounded for easy gripping and operation. The interior of the touch shell 2 has a pre-reserved slot for fixing the conductive layer 4 and the insulating bottom component 6. The top has a pre-reserved screw hole structure for fixing the conductive handle 1.

[0042] Furthermore, the conductive handle 1 is made of the same or similar highly conductive material as the conductive layer 4, and is fixedly connected to the touch shell 2 by fitting. A groove matching the shape of the conductive handle is provided on the top of the touch shell 2, and a protruding structure matching the groove is designed on the bottom of the conductive handle 1. The protruding part of the conductive handle 1 is embedded into the groove on the top of the touch shell 2 for a tight fit.

[0043] Furthermore, the upper part of the conductive handle 1 is a wide elliptical disc, which gradually narrows and becomes smaller at the bottom, transitioning into a frustum-shaped shape to the connection part with the outer shell. The lower part is adapted to the installation groove reserved on the top of the outer shell to achieve a stable connection in a tight nesting manner.

[0044] Furthermore, the conductive handle 1 integrates a flexible circuit connection layer, which is bonded to the inside of the conductive handle through a pressing process, thereby achieving a stable electrostatic connection between the conductive handle and the internal conductive components and conductive layer.

[0045] This embodiment details the modular structural design of the multi-touch device of this application. An insulated bottom component, combined with highly conductive components and a conductive layer, ensures stable and efficient electrostatic transmission. Furthermore, the graphene coating on the conductive layer enhances touch response sensitivity. The touch shell is made of insulating engineering plastic, providing excellent protection, and its rounded edges facilitate operation. The special structure of the conductive handle and the flexible circuit connection layer further enhance electrostatic transmission, making it more convenient and sensitive to use.

[0046] Based on Embodiment 1, this embodiment describes in detail a miniature capacitor array of a conductive component, such as... Figure 2 As shown, specifically:

[0047] The microcapacitor array integrated inside the conductive component 5 adopts a highly integrated and refined design. At the microscale, each microcapacitor is arranged in an orderly manner like a tiny electronic component. The microcapacitor consists of two electrodes and a dielectric in the middle. The electrodes are usually metal thin films with good conductivity, such as copper or silver films, which are precisely processed in specific positions inside the conductive component through advanced photolithography and etching technology. The film is extremely thin but can conduct charges efficiently.

[0048] The dielectric, situated between the two electrodes, is made of a high-dielectric-constant material, such as ceramic matrix composites or polymers. It effectively isolates the two electrodes, preventing direct charge conduction, and can also store charge under an electric field, enhancing capacitor performance. The microcapacitors are compactly arranged within the conductive component 5, achieving maximum layout optimization within a limited space. Furthermore, adjacent microcapacitors are interconnected by extremely fine metal wires, constructing an ordered circuit network that ensures coordinated operation and efficient processing of electrostatic signals.

[0049] The layout of the microcapacitor array in the conductive component 5 is as follows: Horizontally, the microcapacitors are arranged at equal intervals or according to a specific density pattern. This arrangement helps to uniformly collect electrostatic signals within the touch area, avoiding blind spots or uneven signal strength. Vertically, the capacitors are distributed in layers, with different layers potentially having different capacitance values ​​or functional focuses. For example, a layer of microcapacitors near the surface of the conductive component may be more focused on quickly responding to the initial touch signal, while capacitors located deeper within the layer are responsible for further signal processing and stabilization.

[0050] This embodiment describes in detail the uniform distribution and special structure of the micro-capacitor array, which effectively filters external electromagnetic interference and avoids affecting the touch signal. At the same time, it enhances the weak touch signal and ensures that the signal is accurately transmitted to the subsequent circuit, so that the multi-touch device can accurately recognize the operation in various environments, improving the touch response speed and operation accuracy.

[0051] Based on Example 1, this example describes in detail the conductive sponge of the conductive layer, specifically:

[0052] The conductive layer 4 is made of conductive sponge, which has good conductivity in the XYZ axis direction, low contact resistance and high shielding characteristics, which can effectively reduce the impact of electromagnetic interference on the touch function of the device and ensure the stability of electrostatic transmission. At the same time, the conductive sponge also has excellent elasticity and elastic recovery performance. After being squeezed or touched by external force, it can quickly return to its original shape, which can effectively buffer the impact force generated during touch operation, avoid structural deformation caused by long-term use, and thus extend the service life of the device.

[0053] Product life aging tests have verified that this conductive sponge has excellent reliability and can maintain stable performance during long-term use. It also has excellent adhesive properties, and can be firmly attached to the corresponding position without additional complicated fixing measures when it is bonded to other components. Furthermore, no chips will fall off during the punching process, ensuring the cleanliness of the device's interior and preventing debris from adversely affecting the device's performance.

[0054] The lower surface of conductive layer 4 is tightly connected to the conductive components thanks to the good adhesion of the conductive sponge, achieving reliable electrical connection with the lower components; the upper surface provides conductive support for the entire device, and works with the touch shell to lay the foundation for multi-touch operation of the device.

[0055] This embodiment details the excellent conductivity and low contact resistance of the conductive sponge in the XYZ axis directions, ensuring rapid and stable electrostatic transmission, improving touch response speed, reducing electromagnetic interference with high shielding properties, making touch operation more accurate, and its excellent elasticity and resilience can buffer touch impact, prevent device damage due to frequent operation, and extend service life.

[0056] The above are merely preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter changes made to these embodiments within the spirit and principles of the present utility model, without departing from the principles and spirit of the present utility model, through conventional substitutions or to achieve the same function, shall fall within the scope of protection of the present utility model.

Claims

1. A multi-touch device based on a modular structure, characterized by, The application relates to a multi-point touch control device, which comprises a conductive handle (1), a touch control shell (2), a conductive layer (4), a conductive assembly (5) and an insulating bottom assembly (6); the insulating bottom assembly (6) is a basic component, which is provided with adaptive mounting holes, and the conductive assembly (5) is embedded in the mounting holes; the conductive layer (4) is arranged above the conductive assembly (5) and is provided with threaded holes corresponding to the positions of the conductive assembly; the threaded holes of the conductive layer are screwed into the preset screw holes of the conductive assembly through fasteners (3) to realize the communication and mechanical fixation of the conductive layer (4) and the conductive assembly (5) in a threaded connection mode; the touch control shell (2) is arranged above the conductive layer and is connected with the conductive layer (4) by screwing the fasteners (3) through the positioning holes of the touch control shell into the threaded holes of the conductive layer, so as to provide protection and support for the internal structure; the conductive handle (1) is mounted on the top of the touch control shell (2) in a fitting mode; the groove on the top of the touch control shell (2) is matched with the protrusion on the bottom of the conductive handle; after being closely fitted, the conductive handle (1) and the conductive layer (4) realize electrostatic transmission, and multi-point touch control is realized through the conductive assembly (5).

2. The multi-touch device based on modular structure according to claim 1, wherein, The insulating bottom assembly (6) is made of polytetrafluoroethylene insulating polymer material, and a plurality of mounting holes for mounting the conductive assembly (5) are arranged in the insulating bottom assembly (6); the conductive assembly (5) is installed in an interference fit mode with the insulating bottom assembly (6); the outer diameter of the conductive assembly is slightly larger than the inner diameter of the mounting hole of the insulating bottom assembly, so that the conductive assembly can be embedded.

3. The multi-touch device based on modular structure according to claim 2, wherein, The conductive assembly (5) is made of copper-aluminum alloy material, which ensures electrostatic current transmission; the conductive assembly (5) is in a cylindrical shape, and is provided with a threaded hole at the top, which can be matched with the fastener (3) to realize reliable mechanical connection and electrostatic transmission with the conductive layer.

4. The multi-touch device based on modular structure according to claim 3, wherein, The conductive assembly (5) is integrated with a micro-capacitor array; the micro-capacitors are uniformly distributed in the conductive assembly (5) and can be filtered and enhanced when subjected to static electricity generated by touch control operation.

5. The multi-touch device based on modular structure according to claim 1, wherein, The conductive layer (4) is made of conductive sponge, which has good conductivity in X-Y-Z axial directions; the conductive layer (4) is in a flat and thin body shape, covers the whole multi-point touch control area, and is tightly connected with the conductive assembly (5) on the lower surface by virtue of the good adhesion of the conductive sponge, so as to realize reliable electrical connection with the lower assembly; the upper surface of the conductive layer (4) is attached with the touch control shell (2) to provide conductive support for the whole device.

6. The multi-touch device based on a modular structure according to claim 5, wherein, The conductive layer (4) is covered with a single-layer graphene coating in the nanometer level, which is uniformly covered on the surface of the conductive layer by a chemical vapor deposition method, so as to improve the conductivity of the conductive layer and the response sensitivity of multi-point touch control operation.

7. The multi-touch device based on modular structure according to claim 1, wherein, The touch shell (2) is made of insulating engineering plastic, including but not limited to polycarbonate and acrylonitrile-butadiene-styrene copolymer, formed by an integrated injection molding process, and is seamlessly connected; the edge of the touch shell (2) is rounded for easy holding and operation; the inside of the touch shell (2) is reserved with a card slot to fix the conductive layer (4) and the insulating bottom component (6); the top is reserved with a threaded hole structure to fix the conductive handle (1).

8. The multi-touch device based on a modular structure according to claim 7, wherein, The conductive handle (1) is made of the same or similar high-conductivity material as the conductive layer (4), and is fixedly connected with the touch shell (2) by embedding; a groove matching the shape of the conductive handle is arranged on the top of the touch shell (2), and the bottom of the conductive handle (1) is designed with a protruding structure matching the groove, so that the protruding part of the conductive handle (1) is embedded in the groove on the top of the touch shell (2) for close embedding.

9. The multi-touch device based on a modular structure according to claim 8, wherein, The upper structure of the conductive handle (1) is wide and elliptical, the lower part is gradually narrowed and smaller, and the lower part is conical and transitions to the connection part with the shell, and the lower part is adapted to the mounting groove reserved on the top of the shell for stable connection in a close nesting manner.

10. The multi-touch device based on a modular structure according to claim 9, wherein, The conductive handle (1) is integrated with a flexible circuit connection layer inside, which is combined with the inside of the conductive handle by pressing process, realizing stable electrostatic connection between the conductive handle and the internal conductive components and the conductive layer.

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