Interactive intelligent tablet computer

Abstract

The utility model discloses an interactive intelligent tablet, which relates to the technical field of electronic equipment, and comprises a sensor body and a wire harness, a first surface and a second surface are respectively formed on two opposite sides of the sensor body, a bonding pad is arranged on the second surface, one end of the wire harness is welded on the bonding pad, and the other end of the wire harness is welded on the other end of the sensor body. The other end of the wire harness is used for being in communication connection with a main board or a touch circuit board of the interactive intelligent tablet computer. The structural strength of the wire harness is higher than that of the flexible flat cable, so that the operation difficulty in the whole machine operation period is reduced, the operation efficiency is effectively improved, the wire harness (and a related mainboard or a touch circuit board) and the sensor body can have higher connection strength, the phenomena of wire deflection, even loosening and the like are avoided, and the service life of the sensor is prolonged. The touch display screen is ensured to have more reliable stability, and the later maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to an interactive smart tablet. Background Art

[0002] The application of elastic wave sensors in touch screens is based on the principle of elastic waves. It uses the vibration waves (elastic waves) generated when an object is subjected to external forces to capture information, thereby accurately identifying contact position, force, type and other information.

[0003] In the actual application scenarios of touch screen displays, the glass cover plate on the display is usually equipped with multiple elastic wave sensors. The elastic wave sensors are connected to the circuit board on the device through flexible flat cables (FFC Flexible Flat Cable and / or FPC Flexible Printed Circuit Board), which makes the elastic wave sensors take up less space and is conducive to the lightweight and miniaturized design of the entire device.

[0004] However, since the flexible flat cable is prone to skew and loosening during the plugging process and in the plugged state, there is a high probability that the elastic wave signal function of the display screen will be abnormal. In addition, the layout and assembly of the flexible flat cable in the frame are complicated and cumbersome, resulting in a low yield rate, which seriously increases the production cost of the equipment and the subsequent maintenance cost. Utility Model Content

[0005] The purpose of the embodiments of the present invention is to provide an intelligent tablet that can solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Provided is an interactive smart tablet, comprising:

[0008] The sensor body has two sides facing away from each other forming a first surface and a second surface, wherein the second surface is provided with a welding pad;

[0009] A wire harness, one end of which is welded to the pad, and the other end of which is used for communication connection with a mainboard or a touch circuit board of the touch display screen.

[0010] This elastic wave sensor abandons the design of flexible flat cables and adopts the method of welding wire harnesses to the sensor body, avoiding the connection structure between flexible flat cables, improving the connection strength between the wire harnesses and the sensor body, and between the sensor body and the related circuit boards, and also reducing the process difficulty and cost of related equipment.

[0011] As an optional embodiment, the pad includes a positive pad and a negative pad, and the positive pad and the negative pad are spaced apart and arranged on the second surface along the length direction of the sensor body;

[0012] The wire harness includes a first wire and a second wire, and the first wire and the second wire are welded to the positive electrode pad and the negative electrode pad, respectively.

[0013] The positive electrode pad and the negative electrode pad are set by utilizing the spatial position provided by the sensor body in the length direction, thereby improving the structural compactness of the sensor body, and reducing the risk of interference between the wire harness and related components on the basis of avoiding signal interference between the first wire and the second wire.

[0014] As an optional implementation, a wiring harness plug or a wiring harness socket is provided at one end of the wiring harness away from the end connected to the sensor body.

[0015] The elastic wave sensor can be detachably connected to the relevant circuit board using a wiring harness plug or a wiring harness socket, which facilitates subsequent inspection, maintenance and replacement of the elastic wave sensor on the touch display screen.

[0016] As an optional implementation, it also includes:

[0017] Cover plate; and

[0018] The touch circuit board is provided, wherein the sensor body is attached to the rear side of the cover plate through the first surface thereof, and the sensor body is communicatively connected with the touch circuit board through the wire harness.

[0019] As an optional embodiment, a wiring harness connector is provided between the wire harness and the touch circuit board, the wiring harness connector including a wiring harness plug and a wiring harness socket, the wiring harness plug being detachably plugged into the wiring harness socket;

[0020] The wiring harness plug is provided on the wire harness, and the wiring harness socket is installed on the touch circuit board; or

[0021] The wiring harness plug is installed on the touch circuit board, and the wiring harness is provided with the wiring harness socket.

[0022] As an optional embodiment, the two sides of the touch circuit board facing away from each other form a first side and a second side respectively, the second side is provided with the wiring harness socket or the wiring harness plug, and the plugging and unplugging direction of the wiring harness connector is perpendicular to the second side.

[0023] As an optional embodiment, the rear side of the cover plate is printed with a black border area around its periphery;

[0024] The elastic wave sensors are provided in plurality, and the plurality of elastic wave sensors are spaced apart and located in the black edge area.

[0025] As an optional embodiment, the cover plate includes two opposite side edges and an upper edge and a lower edge respectively connected to both ends of the side edges, and the plurality of elastic wave sensors are respectively arranged on the upper edge and the lower edge of the cover plate.

[0026] As an optional implementation, it also includes:

[0027] a frame, disposed around an edge of the cover plate, with a hollow accommodating cavity formed in the frame, the touch circuit board being located in the accommodating cavity and fixed relative to the frame, and the frame being located on the front side of the cover plate and further having an opening communicating with the accommodating cavity;

[0028] a filter strip, disposed on the frame and covering the opening;

[0029] The touch circuit board is further provided with an infrared transceiver, which is arranged toward the filter strip, and the infrared transceiver and the wire are respectively connected to two side surfaces of the touch circuit board that are away from each other.

[0030] As an optional embodiment, the frame is further provided with a fixing member on the rear side of the cover plate, one end of the fixing member is connected to the frame, and the other end of the fixing member extends toward the cover plate and abuts against the rear side surface of the cover plate;

[0031] The filter strip at least partially protrudes from the opening and is formed with a pressing surface, and the filter strip presses against the front side surface of the cover plate through the pressing surface.

[0032] The beneficial effects of the present invention are as follows: in the interactive smart tablet, the elastic wave sensor is welded to the sensor body by a wire harness, so that the elastic wave sensor can be more easily adapted to various complex circuit layouts and installation environments in the application of the interactive smart tablet. The structural strength of the wire harness is also higher than that of the flexible flat cable, which reduces the difficulty of operation during the operation of the whole machine and effectively improves its operating efficiency. At the same time, the wire harness (and the related main board or touch circuit board) can have a higher connection strength with the sensor body, avoiding the phenomenon of wire skew or even loosening, ensuring that the touch display screen has more reliable stability and reducing the subsequent maintenance cost.

[0033] In addition, the production cost of wire harnesses is relatively lower than that of flexible flat cables, and the production process is simpler. In addition, the welding process is simpler and more reliable, and the requirements for technical personnel are not high, which is conducive to further reducing the production cost of touch screen displays on the basis of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is the main view of the interactive smart tablet described in the embodiment of the present utility model;

[0036] Figure 2 This is a rear view of the interactive smart tablet according to an embodiment of the present utility model;

[0037] Figure 3 This is an exploded view of the interactive smart tablet described in an embodiment of the present utility model;

[0038] Figure 4 This is a schematic structural diagram of the elastic wave sensor according to an embodiment of the present utility model;

[0039] Figure 5 This is an axonometric diagram of the interactive smart tablet according to an embodiment of the present utility model;

[0040] Figure 6 for Figure 5 A magnified view of part A;

[0041] Figure 7 This is an axonometric cross-sectional view of the interactive smart tablet according to an embodiment of the present utility model;

[0042] Figure 8 for Figure 7 Magnified view of part B;

[0043] Figure 9 This is a partial cross-sectional view of the interactive smart tablet described in an embodiment of the present utility model.

[0044] In the figure: 10, sensor body; 11, first surface; 12, second surface; 121, positive electrode pad; 122, negative electrode pad; 20, first wire; 30, second wire; 40, wiring harness plug; 50, wiring harness socket; 60, cover; 61, black border area; 62, upper edge; 63, lower edge; 64, side edge; 70, touch circuit board; 71, first side; 72, second side; 80, frame; 81, accommodating cavity; 811, card slot; 82, opening; 83, filter strip; 84, fixing piece; 85, corner piece. DETAILED DESCRIPTION

[0045] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention are described in further detail below. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0046] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] Elastic wave sensors are increasingly used in touch screens, bringing innovation to touch screen technology. In touch screen applications, elastic wave sensors are based on elastic wave technology. When the screen is touched by a touch object, elastic wave signals are generated. These signals can be captured by the elastic wave sensor and converted into electrical signals for processing. In this way, the elastic wave sensor can accurately locate the touch position and sense the force, touch material, and other aspects.

[0049] As can be seen from the background technology, touch screen displays typically have multiple elastic wave sensors installed on the display's glass cover to fully detect elastic wave signals generated by touch screen vibrations. Typically, the elastic wave sensors are connected to the device's circuit board via flexible flat cables (FFC Flexible Flat Cable and / or FPC Flexible Printed Circuit Board), reducing the space occupied by the elastic wave sensors and contributing to the overall lightweight and miniaturized design of the device.

[0050] Exemplarily, the FFC connecting wire and the FPC connecting wire are connected to the circuit board and the elastic wave sensor respectively by welding, crimping, etc., and the FFC connecting wire is plugged into the connecting terminal provided by the adapter on the FPC connecting wire, thereby realizing the connection between the elastic wave sensor and the circuit board.

[0051] However, due to the relatively thin and light structure of the flexible flat cable itself, the following problems generally exist during the plugging process and in the plugged state between the FFC cable and the FPC adapter:

[0052] 1. The FFC cable and the FPC adapter are prone to skew (misalignment) and loosening under external force, resulting in a high probability of abnormal elastic wave signal function on the display;

[0053] 2. The layout and assembly of the flexible flat cable in the frame are complicated and tedious, resulting in low yield rate, which seriously increases the production cost of the equipment and subsequent maintenance costs;

[0054] 3. FFC and FPC cables are easily deformed by external forces, resulting in creases or even breakage on the cables. This also increases the probability of abnormal elastic wave signal function on the display.

[0055] 4. The defective rate of bonding (or Bond, which refers to a process or technology that tightly combines electronic components or materials) between the FPC and the elastic wave sensor is high, resulting in abnormal test signals.

[0056] In view of this, the present embodiment provides an interactive smart tablet, which solves a series of technical problems such as the poor connection stability between the above-mentioned elastic wave sensor and the related circuit board by replacing the flexible flat cable connected to the elastic wave sensor and changing the wiring method of the connecting wire on the elastic wave sensor.

[0057] It can be understood that the interactive smart tablet provided in this embodiment includes a sensor body 10. The sensor body 10 serves as the main part of the elastic wave sensor, and is generally provided with a transducer (or piezoelectric element), a signal capture and processing circuit, etc., wherein the sensor body 10 is the basic structure that supports and protects other components, the transducer is responsible for converting the elastic wave signal into an electrical signal, and the signal capture and processing circuit is used to capture and process these electrical signals.

[0058] like Figure 4 As shown, a first surface 11 and a second surface 12 are respectively formed on two sides of the sensor body 10 facing away from each other. It can be understood that in the application of the interactive smart tablet, the sensor body 10 is set on the touch panel of the display screen for the touch object to touch through the first surface 11, and the second surface 12 provides a corresponding connection position for the connection line connected to the sensor body 10.

[0059] Specifically, the first surface 11 of the sensor body 10 serves as the primary receiving point for elastic wave signals. As described above, the sensor body 10 typically directly contacts the object or medium to be measured through the first surface 11, enabling the sensor body 10 to efficiently capture and convert vibration signals from the object or medium into electrical signals. The second surface 12 of the sensor body 10 is primarily responsible for connection and transmission functions. Connectors for wires are typically provided on the second surface 12 of the sensor body 10, which transmit the electrical signals received and converted by the sensor body 10 through the first surface 11 to the touch sensor's mainboard or touch frame circuit board.

[0060] In this embodiment, the sensor body 10 is provided with solder pads on the second surface 12. The solder pads are connected to the processing circuitry provided on the sensor body 10 to enable transmission of electrical signals when wires are connected to the solder pads. It should be noted that the solder pads on the second surface 12 of the sensor body 10 are typically designed with sufficient area and appropriate spacing to ensure reliable and stable soldering of the wires to the solder pads.

[0061] Based on the above structure, the interactive smart tablet provided in this embodiment also includes a wire harness. The wire harness in this embodiment is integrated by multiple wires (or cables) and serves as a key component of the elastic wave sensor for connecting to the device circuit board. One end of the wire harness is soldered to the pad, and the other end is used to communicate with the main board or touch circuit board 70 of the interactive smart tablet. It is responsible for converting the mechanical vibration signal captured by the sensor body 10 into an electrical signal, and then transmitting it to the main board, touch circuit board 70 and even other processing units for further processing and analysis.

[0062] The wire harness can be specifically welded to the pads of the sensor body 10 by soldering or other methods, so that the wire harness and the sensor body 10 form a stable connection. Compared with the method of connecting the sensor body 10 using an FPC cable as mentioned in the background art, the method of welding the wire harness to the sensor body 10 has the following advantages:

[0063] 1. During the welding process of the wire harness and the pad, the solder (such as solder) can penetrate into the tiny gap between the wire and the pad under the action of hot pressing or ultrasonic vibration to form a reliable metal connection. In addition, when welding the wire harness, the connection area of ​​the welding joint can be controlled by adjusting the welding parameters (such as welding time, pressure, etc.). A larger connection area can increase the bonding force between the wire and the pad, thereby ensuring the connection strength between the wire harness and the sensor body 10.

[0064] Moreover, although the connection area between the FPC connecting line and the sensor body 10 can be larger than that formed by welding the wire harness to the pad, the connection strength will be affected to a certain extent due to its flexible characteristics and possible bending and folding restrictions. From the above, it can be seen that the wire harness welding can optimize the connection area and connection strength by adjusting the welding parameters. Therefore, in terms of connection strength, the connection strength of the wire harness welding to the pad is better than the connection method of the FPC connecting line.

[0065] 2. The welding process usually uses simpler tools and materials, which is lower in cost than the FPC cable connection method;

[0066] 3. The wire harness can be flexibly connected and arranged between the sensor body 10 and the corresponding circuit board according to actual needs, without being restricted by the fixed shape and size of the FPC. This makes the elastic wave sensor more adaptable to various complex circuit layouts and installation environments in interactive smart tablet applications, thereby reducing the interactive smart tablet's requirements for the relative position of the elastic wave sensor and the related circuit board, and making the structural design and layout of the display device more flexible.

[0067] 4. Wire harnesses are easier to repair and replace than FPC cables, thereby reducing the time cost required for subsequent inspection and maintenance of display equipment.

[0068] Furthermore, the structural strength of the wire harness is also higher than that of a flexible flat cable. During assembly, operators do not need to worry about the wire harness bending or breaking under external forces, which reduces operational difficulty and effectively improves operating efficiency. The wire harness (and the associated motherboard or touch circuit board 70) can have a stronger connection with the sensor body 10, preventing wire skew or even loosening, ensuring greater stability for the interactive smart tablet and reducing subsequent maintenance costs.

[0069] According to the above embodiment, when an elastic wave sensor is applied to an interactive smart tablet, taking the example of a sensor body 10 connected to the interactive smart tablet's mainboard or touch circuit board 70 via a wire harness, when a finger or other object interacts with the smart tablet, corresponding mechanical stress is generated at the touch point of the display screen. This stress causes particles inside or on the surface of the display screen to generate elastic waves, which propagate within or on the surface of the display screen in the form of waves. After the elastic wave sensor detects these propagating elastic waves through its sensor body 10, it converts the detected elastic wave signals into electrical signals. The converted electrical signals are then transmitted via a wire harness to the mainboard or touch circuit board 70 for processing. The processed signals are then analyzed by an algorithm to determine rich information such as the location of the touch event, the force, and the hardness of the contact object.

[0070] Please refer to the attached Figures 1-6 Based on the above structure, in one specific embodiment, the pads located on the second surface 12 of the sensor body 10 include a positive pad 121 and a negative pad 122, wherein the positive pad 121 and the negative pad 122 are spaced apart on the second surface 12 along the length of the sensor body 10. The positive pad 121 and the negative pad 122 are provided to receive and transmit electrical signals converted from elastic wave signals. The spacing of the positive pad 121 and the negative pad 122 along the length of the sensor body 10 ensures that the electrical signals maintain a certain degree of stability and accuracy during transmission. This arrangement helps reduce signal attenuation and interference during transmission, thereby improving the sensitivity and reliability of the sensor.

[0071] In addition, the positive electrode pad 121 and the negative electrode pad 122 are arranged along the length direction of the sensor body 10. The two utilize the space and position provided by the sensor body 10 in the length direction, which is beneficial to improving the structural compactness and integrity of the sensor body 10, and reducing the risk of interference between the wire harness when the sensor body 10 is connected, ensuring that the wire harness can smoothly extend from the second surface 12 of the sensor body 10 to the corresponding circuit board.

[0072] Correspondingly, the wire harness includes a first wire 20 and a second wire 30 , and the first wire 20 and the second wire 30 are respectively welded to the positive electrode pad 121 and the negative electrode pad 122 to ensure normal transmission of positive potential signals and negative potential signals.

[0073] Optional, please refer to the attached Figure 4-Figure 9 A wiring harness plug 40 or a wiring harness socket 50 is provided at the end of the wire harness facing away from the sensor body 10. In the application of the interactive smart tablet, a wiring harness socket 50 or a wiring harness plug 40 adapted to the structure is provided on the circuit board connected to the wire harness, so that the wire harness and the corresponding circuit board can be detachably plugged in through the wiring harness plug 40 and the wiring harness socket 50.

[0074] Taking the above embodiment in which the wire harness is provided with a harness plug 40 as an example, the structure of the harness plug 40 can be, but is not limited to, a square harness plug 40, a round harness plug 40, a plate-type harness plug 40, etc., as long as it is configured to have a structure that can adapt to the harness socket 50 located on the circuit board, this embodiment has no specific limitation on this.

[0075] In the embodiment in which the wire harness includes a first wire 20 and a second wire 30, the ends of the first wire 20 and the second wire 30 can both be set in a wire harness plug 40, so that when the wire harness is connected to the corresponding circuit board, the first wire 20 and the second wire 30 can be connected to the circuit board together through the wire harness plug 40, thereby reducing the operational difficulty of the wiring process, and making the wiring positions of the first wire 20 and the second wire 30 on the circuit board more accurate, thereby improving the disassembly and assembly efficiency of the elastic wave sensor and the circuit board.

[0076] The wire harness is connected to the circuit board through the harness plug 40 and the harness socket 50, which can effectively improve the connection reliability between the elastic wave sensor and the circuit board. The connection method between the harness plug 40 and the harness socket 50 is more stable than the plug-in fit between the FPC connector and the FFC. Compared with direct welding or winding, the mechanical locking structure between the harness plug 40 and the harness socket 50 can effectively prevent loosening and falling off, and also makes it easy to plug and unplug the elastic wave sensor and the circuit board, which is convenient for the later inspection, maintenance and replacement of the elastic wave sensor.

[0077] It is also worth mentioning that in the application scenarios of elastic wave sensors, which are often accompanied by vibration and impact, the coordinated design of the wiring harness plug 40 and the wiring harness socket 50 can provide better shock resistance between the wire harness and the circuit board, thereby reducing connection failures caused by vibration and impact.

[0078] In addition, the matching structure of the wiring harness plug 40 and the wiring harness socket 50 generally has good conductivity and shielding properties, which can reduce signal loss and interference during transmission, thereby ensuring the measurement accuracy and performance of the elastic wave sensor.

[0079] It should be understood that the interactive smart tablet described in this embodiment can be used as a display device requiring touch functionality, such as a conference tablet, smart blackboard, or commercial display. As can be understood from the above, the interactive smart tablet can use touch technology to operate the content displayed on the display and achieve human-computer interaction. Generally, an interactive smart tablet integrates one or more functions such as a projector, whiteboard, screen, audio system, television, and video conferencing terminal. Users can touch the display screen with their fingers or a touch tool, and the intelligent processing system generates handwriting based on the user's touch input and displays it on the display screen, or generates control operations based on the user's touch input to process the content displayed on the display screen.

[0080] It is understood that the current interactive smart tablet structure generally consists of a backlight module, a frame 80 component, a display module (display screen), a touch film assembly, etc. Among them, in an interactive smart tablet with touch function, the frame 80 component not only needs to provide installation space and location for related functional components (such as touch signal transceiver, sound pickup module, speaker module, etc.), but also needs to provide space for accommodating the filter strip 83.

[0081] It is worth mentioning that for each component in the interactive smart tablet, when the interactive smart tablet is in use by the user, the side of the interactive smart tablet used to provide image display (the side to which the cover 60 faces) is the front side of each component, that is, the attached Figure 3-Figure 4 、 Figure 8-Figure 9 The "front" direction is indicated by the arrow in the figure. Conversely, the side of the interactive smart tablet away from the side for providing image display function is the rear side of each component, that is, the attached Figure 3-Figure 4 、 Figure 8-Figure 9 The arrow in the middle indicates the direction of "back".

[0082] Please continue to refer to the instructions attached Figures 1-9 The interactive smart tablet also includes a cover plate 60 and a touch circuit board 70. The cover plate 60 is a component used to protect the display screen. It is generally arranged on the front side of the interactive smart tablet to provide a corresponding touch surface for the user's touch operation. In order to avoid affecting the image displayed on the display screen, the cover plate 60 is generally made of a transparent material, such as glass, acrylic, etc. This embodiment has no strict restrictions or requirements on this. The touch circuit board 70 is used to receive touch signals generated by the user's interactive smart tablet (cover plate 60) in the application of the interactive smart tablet, and convert the touch signals into electrical signals and transmit them to the mainboard of the interactive smart tablet, thereby displaying the corresponding operation content on the display screen.

[0083] In the elastic wave sensor provided in combination with the above-mentioned embodiment, the sensor body 10 is attached to the rear side of the cover 60 through its first surface 11, so that the elastic wave signal generated when the user touches the cover 60 can be better collected by the sensor body 10. In this state, the second surface 12 of the sensor body 10 faces the rear side of the cover 60, so that the sensor body 10 is convenient for communication and connection with the touch circuit board 70 through the wire harness.

[0084] As will be appreciated, the touch circuit board 70 of this embodiment is positioned along the edge of the cover plate 60, and the sensor body 10 is also positioned near the edge of the cover plate 60. Therefore, the elastic wave sensor is connected to the touch circuit board 70 via a wiring harness, effectively shortening the wiring harness length and reducing the difficulty and cost of wiring the elastic wave sensor. The elastic wave signal detected by the elastic wave sensor can be transmitted to the mainboard via the touch circuit board 70, eliminating the need for additional components such as FPC cables, FFC cables, and sensor adapter boards between the elastic wave sensor and the mainboard. This helps reduce the overall cost of the interactive smart tablet and improves the production efficiency of the device.

[0085] It can also be understood from the above description of the elastic wave sensor that the elastic wave sensor provided by any of the above embodiments is applied to the interactive smart tablet, which can effectively improve the connection strength between the touch circuit board 70 and the sensor body 10. At the same time, since the sensor body 10 and the touch circuit board 70 are directly connected by a wire harness (without the need for connection through FPC connecting wires and FFC connecting wires), the two only need to ensure that the wire harness has a good connection relationship with themselves, avoiding a series of situations mentioned in the background technology, such as the crooked and loose connection wires, which affect the normal sensing function of the interactive smart tablet.

[0086] As an optional embodiment, a harness connector is provided between the wire harness and the touch circuit board 70 . The harness connector includes a harness plug 40 and a harness socket 50 . The harness plug 40 is detachably plugged into the harness socket 50 .

[0087] It can be understood from the above that when the harness plug 40 is provided in the wire harness, the harness socket 50 is mounted on the touch circuit board 70;

[0088] When the wiring harness plug 40 is installed on the touch circuit board 70 , a wiring harness socket 50 is provided on the wire harness.

[0089] This embodiment does not specifically limit the size and shape of the wiring harness plug 40 and the wiring harness socket 50. It only needs to ensure that the wiring harness plug 40 and the wiring harness socket 50 can meet the requirements of a detachable plug-in matching mode to realize the assembly and disassembly of the elastic wave sensor and the touch circuit board 70.

[0090] The elastic wave sensor is connected to the touch circuit board 70 through a wiring harness connector, which can facilitate the installation and disassembly of the elastic wave sensor and the touch circuit board 70, and is beneficial to the subsequent inspection and maintenance of the elastic wave sensor. At the same time, the sensor body 10 and the touch circuit board 70 are connected by a wire harness, which has lower costs than the flexible flat cable connection method, thereby reducing the overall cost of the interactive smart tablet, making it suitable for large-scale production and use of the product.

[0091] Based on the above-mentioned embodiment of connecting the wire harness to the touch circuit board 70 through the wire harness connector, the two sides of the touch circuit board 70 facing away from each other form a first side 71 and a second side 72 respectively. Specifically, the touch circuit board 70 is arranged perpendicular to the cover plate 60 so that its first side 71 is arranged toward the front side of the cover plate 60, and the second side 72 of the touch circuit board 70 is on the side facing away from the cover plate 60. Generally, in order to collect touch signals on the cover plate 60, the first side 71 of the touch circuit board 70 is generally provided with a signal transceiver for collecting touch signals. Therefore, in order to avoid interference with the collection of touch signals caused by the connection between the wire harness and the touch circuit board 70, the above-mentioned wire harness socket 50 or wire harness plug 40 arranged on the touch circuit board 70 should be arranged on the second side 72 of the touch circuit board 70.

[0092] To ensure a stable mating relationship between the wiring harness plug 40 and the wiring harness receptacle 50, the wiring harness connector's insertion and removal direction (the direction between the wiring harness plug 40 and the wiring harness receptacle 50) is set perpendicular to the touch sensor's second side 72. This allows the direction of the interaction force generated between the wiring harness plug 40 and the wiring harness receptacle 50 to be perpendicular to the touch circuit board 70 during insertion and removal. This reduces the tangential force generated between the wiring harness receptacle 50 or wiring harness plug 40 and the touch circuit board 70, thereby ensuring a certain degree of connection strength between the wiring harness receptacle 50 or wiring harness plug 40 and the touch circuit board 70.

[0093] Furthermore, since the second side surface 72 of the touch circuit board 70 is located on the side facing away from the cover plate 60, the position of the frame 80 or other components on the second side surface 72 of the touch circuit board 70 can also provide a larger space and position, allowing the wiring harness socket 50 or the wiring harness plug 40 to be arranged in a direction perpendicular to the second side surface 72, which can reduce the risk of mutual interference between the wiring harness connector and other components during the plugging and unplugging process and in the plugged state, thereby ensuring an effective connection between the elastic wave sensor and the touch circuit board 70.

[0094] In addition, in some embodiments, the touch circuit board 70 forms a limiting cooperation relationship with the frame 80 or components in the interactive smart tablet through its first side 71 and second side 72, and by setting the plugging and unplugging direction of the wiring harness connector to be perpendicular to the second side 72 of the touch circuit board 70, it can be ensured that when the force generated during the plugging and unplugging process acts on the touch circuit board 70, the touch circuit board 70 can be pressed against the limiting structure set by the corresponding component through its first side 71 or second side 72, thereby ensuring that during the plugging and unplugging process of the wiring harness connector, the touch circuit board 70 has a stable fulcrum in the interactive smart tablet, while also improving the positioning accuracy of the touch circuit board 70 in the interactive smart tablet, thereby ensuring that the interactive smart tablet can provide a stable touch signal acquisition function.

[0095] Please continue to refer to the attached Figure 5-Figure 8 The rear side of the cover plate 60 is printed with a black border area 61 around its periphery. The black border area 61 is generally used to block the electronic components and wires of the interactive smart tablet arranged on the periphery of the display screen, so that the front of the interactive smart tablet looks more beautiful and comfortable during use. On the basis of the above-mentioned elastic wave sensor being arranged on the rear side of the cover plate 60, in order to improve the aesthetics of the interactive smart tablet, the multiple elastic wave sensors arranged in this embodiment are all arranged in the black border area 61 and can be adhered to the cover plate 60 by bonding, so that in the front side direction of the cover plate 60, each elastic wave sensor can be blocked by the black border area 61.

[0096] Optionally, the cover 60 includes opposing side edges 64 and an upper edge 62 and a lower edge 63 that are respectively connected to the ends of the side edges 64. In embodiments where the interactive smart tablet includes a frame 80, each frame 80 is disposed around the cover 60 along each side edge 64, as well as the upper edge 62 and the lower edge 63 of the cover 60. In currently widely used interactive smart tablet products, the upper edge 62 and the lower edge 63 of the cover 60 form long sides of uniform length, while the side edges 64 form short sides that are shorter than the upper edge 62 and the lower edge 63, thereby giving the cover 60 a rectangular shape. Multiple elastic wave sensors are spaced apart along the length of the cover 60 on the upper edge 62 and the lower edge 63 of the cover 60, with at least two elastic wave sensors being disposed near opposite ends of the upper edge 62 and the lower edge 63 of the cover 60, respectively, thereby enabling the interactive smart tablet to accurately acquire elastic wave signals.

[0097] In one embodiment, the interactive smart tablet further includes a frame 80 as described in the background technology, and the frame 80 is arranged around the edge of the cover 60, wherein the frame 80 can be set as an integral part or composed of multiple sections of separately arranged frames. In an embodiment using a multi-section split frame, each frame is respectively arranged corresponding to the upper edge 62, the lower edge 63 and the opposite two side edges 64 of the cover 60, and any two adjacent frames are connected by a corner piece 85.

[0098] This embodiment has no strict limitations or requirements on the specific structure of the frame 80. It can be set as a sheet metal frame 80 or a profile frame 80. In the embodiment using the sheet metal frame 80, the sheet metal frame 80 can be processed by a sheet metal process (such as rolling, bending, etc.), while the profile frame 80 can be integrally formed by an extrusion process.

[0099] Specifically, the frame 80 has a centrally-through structure, and a hollow accommodating cavity 81 is formed inside it and extends along its length. The accommodating cavities 81 in any two adjacent frames 80 are interconnected to ensure that a communication connection can be formed between the touch circuit boards 70 arranged in each accommodating cavity 81. The touch circuit board 70 is located in the accommodating cavity 81 and is relatively fixed to the frame 80. In some embodiments, the touch circuit board 70 is extended along the length direction of the corresponding frame 80, and multiple touch circuit boards 70 arranged in sequence can be set in a frame 80 to be suitable for use with interactive smart tablets of different sizes.

[0100] The frame 80 is located on the front side of the cover 60 and is further provided with an opening 82 connected to the accommodating cavity 81. The frame 80 is also provided with a filter strip 83 covering the opening 82. Correspondingly, the touch circuit board 70 is also provided with an infrared transceiver, which is arranged toward the filter strip 83. In addition, the infrared transceiver and the wires are respectively connected to the two side surfaces of the touch circuit board 70 that are away from each other, so that an infrared collection network for collecting touch signals is formed on the front side of the cover 60 in a horizontal and vertical staggered manner.

[0101] In one embodiment, if Figure 9As shown, to ensure higher signal acquisition accuracy for the infrared transceiver, the touch circuit board 70 is positioned on the side of the frame 80 near the opening 82, placing the infrared transceiver closer to the filter strip 83. The frame 80 is provided with slots 811 on the front and rear walls of the accommodating cavity 81, respectively, to constrain the touch circuit board 70. With its two opposing sides positioned within the slots 811, the touch circuit board 70 is constrained by the walls of the slots 811 on its first and second sides 71 and 72. This, combined with the aforementioned embodiment of placing the wiring harness receptacle 50 or wiring harness plug 40 perpendicular to the second side 72 of the touch circuit board 70, allows forces acting on the touch circuit board 70 to be efficiently transferred through its first and second sides 71 and 72 to the walls of the slots 811, thereby ensuring the stability of the touch circuit board 70 within the frame.

[0102] In one embodiment, in order to ensure that the cover 60 can form a stable matching relationship with the frame 80, please refer to the attached Figure 8 The frame 80 is located on the rear side of the cover 60 and is also provided with a fixing part 84. One end of the fixing part 84 is connected to the frame 80, and the other end of the fixing part 84 extends toward the cover 60 and presses against the rear side of the cover 60. The filter strip 83 at least partially protrudes from the opening 82 and forms a pressing surface. The filter strip 83 presses against the front side of the cover 60 through the pressing surface, thereby avoiding pressing the pressure plate against the frame 80 on the basis of processing a fixing structure on the cover 60, thereby ensuring the accurate collection of elastic wave signals and touch signals by the elastic wave sensor and the infrared transceiver.

[0103] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0104] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0105] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0106] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An interactive smart tablet, characterized in that: include: A sensor body (10), wherein two sides thereof facing away from each other respectively form a first surface (11) and a second surface (12), and the second surface (12) is provided with a welding pad; A wire harness, one end of which is welded to the pad, and the other end of which is used for communication connection with a mainboard of a touch display screen or a touch circuit board (70).

2. The interactive smart tablet according to claim 1, characterized in that: The pads include a positive pad (121) and a negative pad (122), and the positive pad (121) and the negative pad (122) are arranged on the second surface (12) at intervals along the length direction of the sensor body (10); The wire harness comprises a first wire (20) and a second wire (30), wherein the first wire (20) and the second wire (30) are welded to the positive electrode pad (121) and the negative electrode pad (122), respectively.

3. The interactive smart tablet according to claim 1, characterized in that: A wiring harness plug (40) or a wiring harness socket (50) is provided at one end of the wire harness away from the end connected to the sensor body (10).

4. The interactive smart tablet according to any one of claims 1 to 3, characterized in that: Also includes: Cover plate (60); as well as A touch circuit board (70) is provided, wherein the sensor body (10) is attached to the rear side of the cover plate (60) via its first surface (11), and the sensor body (10) is communicatively connected to the touch circuit board (70) via the wire harness.

5. The interactive smart tablet according to claim 4, characterized in that: A wiring harness connector is provided between the wire harness and the touch circuit board (70), the wiring harness connector comprising a wiring harness plug (40) and a wiring harness socket (50), the wiring harness plug (40) being detachably plugged into the wiring harness socket (50); The wiring harness plug (40) is provided on the wire harness, and the wiring harness socket (50) is mounted on the touch circuit board (70); or The wiring harness plug (40) is installed on the touch circuit board (70), and the wiring harness socket (50) is provided on the wire harness.

6. The interactive smart tablet according to claim 5, characterized in that: Two sides of the touch circuit board (70) facing away from each other form a first side surface (71) and a second side surface (72), and the second side surface (72) is provided with the wiring harness socket (50) or the wiring harness plug (40); The plugging and unplugging direction of the wiring harness connector is perpendicular to the second side surface (72).

7. The interactive smart tablet according to claim 5, characterized in that: The rear side of the cover plate (60) is printed with a black border area (61) around its periphery; A plurality of elastic wave sensors are provided, and the plurality of elastic wave sensors are spaced apart and located in the black edge area (61).

8. The interactive smart tablet according to claim 7, characterized in that: The cover plate (60) includes two opposite side edges (64) and an upper edge (62) and a lower edge (63) respectively connected to the two ends of the side edges (64); a plurality of elastic wave sensors are respectively arranged on the upper edge (62) and the lower edge (63) of the cover plate (60).

9. The interactive smart tablet according to claim 5, characterized in that: Also includes: A frame (80) is arranged around the edge of the cover plate (60), a hollow accommodating cavity (81) is formed in the frame (80), the touch circuit board (70) is located in the accommodating cavity (81) and is fixed relative to the frame (80), and the frame (80) is located on the front side of the cover plate (60) and is further provided with an opening (82) communicating with the accommodating cavity (81); a filter strip (83) disposed on the frame (80) and covering the opening (82); The touch circuit board (70) is further provided with an infrared transceiver, which is arranged toward the filter strip (83), and the infrared transceiver and the wire are respectively connected to two side surfaces of the touch circuit board (70) that are away from each other.

10. The interactive smart tablet according to claim 9, characterized in that: The frame (80) is located on the rear side of the cover plate (60) and is further provided with a fixing member (84), one end of the fixing member (84) is connected to the frame (80), and the other end of the fixing member (84) extends toward the cover plate (60) and abuts against the rear side of the cover plate (60); The filter strip (83) at least partially protrudes from the opening (82) and is formed with a pressing surface, and the filter strip (83) presses against the front side surface of the cover plate (60) through the pressing surface.

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