Intelligent interactive tablet with virtual keys

Abstract

The invention discloses an intelligent interaction tablet with virtual keys. The intelligent interaction tablet comprises a main board, a touch screen, a first support, a frame and an actuator, wherein the main board runs an operation system; the frame comprises an outer side and an inner side; a virtual key area is arranged on the outer side of the frame, and the virtual key area is used for receiving touch operation of a user and responding to the touch operation of the user; the inner side of the frame is provided with a vibration reinforcing area formed by sinking, the position of the vibration reinforcing area corresponds to the position of the virtual key area, and when the same acting force is applied, the amplitude of the vibration reinforcing area is larger than that of other areas on the inner side of the frame; a pressure detection module is further arranged in the vibration reinforcing area; the actuator is in communication connection with the pressure detection module, and when the actuator is triggered to generate vibration, the first support drives the vibration reinforcing area and the virtual key area to vibrate. Key interaction operation at different positions can be realized, trepanning is avoided, and the key function is realized while the attractive appearance is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of smart interactive tablets, and in particular to a smart interactive tablet with virtual buttons. Background Art

[0002] In some large-sized smart interactive tablets, mechanical buttons including power buttons and volume adjustment buttons are essential interactive tools that can provide users with information confirmation input and tactile feedback. Since these mechanical buttons are usually deployed on the frame of the smart interactive tablet, the deployment of multiple mechanical buttons inevitably requires the frame structure to be processed with holes, and there are obvious button gaps, which makes the appearance of the smart interactive tablet discontinuous and unsightly, affects the integrated appearance of the smart interactive tablet product, and reduces the product's dust and water resistance. In addition, the overall structural design of the smart interactive tablet is gradually developing towards a trend of being thin and light. The trend of thinness and lightness has led to the increasingly narrow frame structure of the smart interactive tablet, making it difficult to effectively assemble the module structure of the integrated mechanical buttons. Summary of the invention

[0003] The embodiments of the present application aim to provide a smart interactive tablet with virtual buttons, which can solve the problems that the mechanical buttons of the existing smart interactive tablets cause the discontinuity and unsightly appearance of the smart interactive tablets, affect the integrated appearance of the smart interactive tablet products, reduce the dust and water resistance of the products, and cannot meet the requirements of the development trend of smart interactive tablets to be lighter and thinner.

[0004] In order to solve the above technical problems, the first embodiment of the present application provides a smart interactive tablet with virtual buttons, including a mainboard and a touch screen running an operating system, a first bracket, a frame and an actuator; wherein:

[0005] The frame includes an outer side and an inner side;

[0006] A virtual key area is arranged outside the frame, and the virtual key area is used to receive a user's touch operation and respond to the user's touch operation;

[0007] The inner side of the frame is provided with a concave vibration enhancement area, the vibration enhancement area is arranged corresponding to the position of the virtual key area, and when subjected to the same force, the amplitude of the vibration enhancement area is greater than that of other areas inside the frame;

[0008] The vibration enhancement area is also provided with a pressure detection module;

[0009] The actuator is communicatively connected with the pressure detection module. When the actuator is triggered to generate vibration, the vibration enhancement area and the virtual key area are driven to vibrate through the first bracket.

[0010] In one of the embodiments, the virtual key area is used to respond to the user's touch operation by vibrating under the drive of the actuator to achieve tactile feedback or sliding feedback.

[0011] In one embodiment, the inner side of the frame extends in a direction away from the outer side of the frame to form a connecting rib, and the connecting rib and the frame form a T-shaped structure.

[0012] In one of the embodiments, the virtual key area includes a left edge area, a middle effective area and a right edge area; the left edge area and the right edge area cannot be pressed or slid, and the middle effective area is for effective pressing and sliding operations, wherein the middle effective area includes several key function areas arranged continuously.

[0013] In one of the embodiments, the pressure detection module includes a circuit board and a plurality of pressure sensors, and the plurality of pressure sensors are respectively welded on the circuit board; the plurality of pressure sensors are coupled to a plurality of key function areas of the virtual key area.

[0014] In one embodiment, one end of the actuator is coupled to the virtual key area, and the other end of the actuator is electrically connected to a processing module.

[0015] In one of the embodiments, the smart interactive tablet with virtual buttons further includes a back panel and a rear shell, and the rear shell is fixedly mounted on the back panel.

[0016] In one embodiment, the first bracket includes a connecting portion, a first plane and a second plane parallel to each other, the first plane is fixedly connected to the second plane through the connecting portion, the first plane abuts against the geometric center position of the vibration enhancement area, and the second plane passes through the avoidance area designed at the corresponding position of the back plate; the actuator is fixedly mounted on the second plane, and its vibration direction is parallel to the plane where the back plate is located.

[0017] In one embodiment, the first bracket further includes a reinforcing portion, and the reinforcing portion is fixedly connected to the second plane and the connecting portion respectively.

[0018] In one of the embodiments, there is a first gap between the back plate and the second plane of the first bracket, and a first elastic damping layer is arranged in the first gap.

[0019] In one embodiment, a second radial gap is provided between the actuator and the back plate, and a second elastic damping layer is provided in the second radial gap; a third radial gap is provided between the actuator and the rear shell, and a third elastic damping layer is provided in the third radial gap.

[0020] In one embodiment, the smart interactive tablet with virtual buttons also includes a second bracket and a fourth elastic damping layer, the first bent end of the second bracket is coupled to an end face of the actuator through the fourth elastic damping layer, and the second bent end of the second bracket is fixedly mounted on the back panel.

[0021] In one of the embodiments, the smart interactive tablet with virtual buttons further includes a display module, one side of the display module is fixedly mounted on the frame, and the other side of the display module is fixedly mounted on the back panel.

[0022] In one of the embodiments, the length of the vibration enhancement area on the inner side of the frame exceeds the length of the virtual key area on the outer side of the frame.

[0023] Compared with the prior art, the present application provides a smart interactive tablet with virtual keys, which includes a motherboard and a touch screen running an operating system, a first bracket, a frame and an actuator; wherein: the frame includes an outer side and an inner side; a virtual key area is provided on the outer side of the frame, and the virtual key area is used to receive a user's touch operation and respond to the user's touch operation; a vibration enhancement area formed by a depression is provided on the inner side of the frame, and the vibration enhancement area is arranged corresponding to the position of the virtual key area. When subjected to the same force, the vibration amplitude of the vibration enhancement area is greater than that of other areas on the inner side of the frame; a pressure detection module is also provided in the vibration enhancement area; the actuator is communicatively connected to the pressure detection module, and when the actuator is triggered to generate vibration, the vibration enhancement area and the virtual key area are driven to vibrate through the first bracket. By setting a vibration enhancement area on the inside of the frame and a virtual key area on the outside of the frame, the frame structure is avoided from being opened, the appearance of the whole machine is improved, and the dustproof and waterproof performance are increased, meeting the requirements of the development trend of thin and light intelligent interactive tablets; by fixing the pressure detection module in the vibration enhancement area, the actuator is connected to the pressure detection module in communication, and the vibration force is transmitted to the virtual key area through the vibration enhancement area, so that the vibration feedback combined with pressure detection technology can be used to simulate the pressing and lifting feedback and touch positioning of mechanical keys. In addition, the setting of the vibration enhancement area formed by the depression can provide extra space to accommodate the pressure detection module on the one hand, and the virtual key area is set in the vibration enhancement area on the other hand, and the actuator transmits the vibration driving force to the vibration enhancement area formed by the depression, which can effectively drive the virtual key area to generate vibration feedback, which can greatly improve the user experience. Thereby, the mechanical keys of the existing intelligent interactive tablets can solve the problems of discontinuity and unsightly appearance of the intelligent interactive tablets, affecting the integrated appearance of the intelligent interactive tablet products, reducing the dustproof and waterproof performance of the products, and failing to meet the requirements of the development trend of thin and light intelligent interactive tablets.

[0024] Furthermore, by setting a virtual key area on the outside of the frame and continuously concentrating multiple key functions in the virtual key area, virtual key operations at different positions can be realized (for example, interactive operations such as pressing functions at different positions and continuous sliding can be realized), and vibration driven by the actuator can achieve tactile feedback and sliding feedback. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0026] Figure 1 It is a structural decomposition diagram of a smart interactive tablet with virtual buttons provided by the present application;

[0027] Figure 2 This is a schematic diagram of the structure combination of a smart interactive tablet with virtual buttons provided by the present application;

[0028] Figure 3 It is a schematic diagram of a frame of a smart interactive tablet with virtual buttons provided by the present application;

[0029] Figure 4 It is a schematic diagram of a virtual key area in a smart interactive tablet with virtual keys provided by the present application;

[0030] Figure 5 This is a schematic diagram of virtual key area division in a smart interactive tablet with virtual keys provided by the present application;

[0031] Figure 6 This is a structural schematic diagram of a smart interactive tablet with virtual buttons along the AA section provided by the present application;

[0032] Figure 7 It is a schematic diagram of a pressure detection module in a smart interactive tablet with virtual buttons provided by the present application;

[0033] Figure 8 It is a structural schematic diagram of a first bracket in a smart interactive tablet with virtual buttons provided by the present application;

[0034] FIG9 is another structural diagram of a smart interactive tablet with virtual buttons provided by the present application;

[0035] FIG. 10 is a schematic diagram of a structural decomposition corresponding to a smart interactive tablet with virtual buttons provided by the present application in FIG. 9 .

[0036] Description of main component symbols:

[0037] Smart interactive tablet with virtual buttons 1 frame 11

[0038] Pressure detection module 12 Actuator 13

[0039] First bracket 14 Back plate 15

[0040] Back cover 16 Virtual key area 111

[0041] Vibration reinforcement area 112 connection portion 143

[0042] First plane 141 Second plane 142

[0043] Avoidance area 151 Connecting rib 113

[0044] Left edge area 1111 Middle effective area 1112

[0045] Right edge area 1113 Key function area 11121

[0046] Circuit board 121 Pressure sensor 122

[0047] Reinforcement portion 144 First gap 171

[0048] The second radial gap 172 and the third radial gap 173

[0049] The first elastic damping layer 181 and the second elastic damping layer 182

[0050] The third elastic damping layer 183 displays the module 19

[0051] Second bracket 30 Fourth elastic damping layer 184 DETAILED DESCRIPTION

[0052] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "bottom" and the like used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application. In addition, the terms "first", "second", "third" and the like are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0053] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0054] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0055] In some large-sized smart interactive tablets, mechanical buttons including power buttons and volume adjustment buttons are essential interactive tools that can provide users with information confirmation input and tactile feedback. Since these mechanical buttons are usually deployed on the frame of the smart interactive tablet, the deployment of multiple mechanical buttons inevitably requires the frame structure to be processed with holes, and there are obvious button gaps, which makes the appearance of the smart interactive tablet discontinuous and unsightly, affects the integrated appearance of the smart interactive tablet product, and reduces the product's dust and water resistance. In addition, the overall structural design of the smart interactive tablet is gradually developing towards a trend of being thin and light. The trend of thinness and lightness has led to the increasingly narrow frame structure of the smart interactive tablet, making it difficult to effectively assemble the module structure of the integrated mechanical buttons.

[0056] In the development of related technologies, the applicant has developed a virtual key system, the main structure of which includes a pressure detection module and an actuator. The pressure detection module detects the pressure of the finger on the surface of the shell, and the actuator excites vibration on the surface of the shell, so that the finger can obtain a tactile sensation similar to that of a physical key.

[0057] However, for the application scenarios of smart interactive tablets with narrow bezels, virtual buttons are usually set inside the bezel. However, since the pressure detection module and actuator have certain volume requirements, the internal space of the narrow bezel cannot accommodate the above components. At the same time, the actuator has corresponding requirements for the thickness of the shell (if it is too thick, it cannot vibrate or the vibration effect is poor), and the bezel of the smart interactive tablet needs to support the corresponding components of the display module, so the thickness is relatively thick when the profile is designed. How to develop a set of virtual buttons on the narrow bezel of the smart interactive tablet is a technical problem that needs to be solved at present.

[0058] To this end, in response to the above-mentioned technical problems discovered during the research and development process, an embodiment of the present application provides a smart interactive tablet with virtual buttons for a narrow frame, including a motherboard and a touch screen running an operating system, a first bracket, a frame and an actuator. By setting a virtual button area on the outside of the frame and a vibration enhancement area on the inside of the frame, it is avoided to perform hole processing on the frame structure, thereby increasing the appearance of the whole machine and the dust and water resistance, and meeting the requirements of the development trend of thin and light smart interactive tablets; by fixing the pressure detection module in the vibration enhancement area, the actuator is communicated with the pressure detection module, and the vibration force is transmitted to the virtual button area through the vibration enhancement area, so that the vibration feedback and pressure detection technology can be combined to simulate the pressing and lifting feedback and touch positioning of mechanical buttons. In addition, the setting of the vibration enhancement area can provide extra space to accommodate the pressure detection module on the one hand, and on the other hand, the virtual key area is set in the vibration enhancement area, and the actuator transmits the vibration driving force to the recessed virtual key area. Since the recessed virtual key area is thinner than other areas, most of the vibrations are generated in the recessed virtual key area, and the vibration amplitude of the vibration enhancement area is greater than other areas inside the frame, so it can effectively drive the virtual key area to generate vibration feedback, which can greatly improve the user experience. This can solve the problem that the mechanical buttons of the existing smart interactive tablets cause the appearance of the smart interactive tablets to be discontinuous and unsightly, affect the integrated appearance of the smart interactive tablet products, reduce the dust and water resistance of the products, and fail to meet the requirements of the development trend of thin and light smart interactive tablets.

[0059] In order to facilitate the understanding of the above inventive concepts of the present application, the above inventive concepts of the present application are described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0060] In one embodiment, Figures 1 to 8 As shown, the present application provides a smart interactive tablet with virtual buttons, the smart interactive tablet with virtual buttons 1 comprises: a mainboard and a touch screen running an operating system, a first bracket 14, a frame 11 and an actuator 13; wherein:

[0061] The frame 11 includes an outer side and an inner side;

[0062] A virtual key area 111 is disposed outside the frame 11, and the virtual key area 111 is used to receive a user's touch operation and respond to the user's touch operation;

[0063] A concave vibration enhancement area 112 is provided on the inner side of the frame 11. The vibration enhancement area 112 is provided corresponding to the position of the virtual key area 111. When subjected to the same force, the vibration amplitude of the vibration enhancement area 112 is greater than that of other areas on the inner side of the frame 11.

[0064] The vibration enhancement area 112 is also provided with a pressure detection module 12;

[0065] The actuator 13 is in communication connection with the pressure detection module 12 . When the actuator 13 is triggered to generate vibration, the vibration enhancement area 112 and the virtual key area 111 are driven to vibrate through the first bracket 14 .

[0066] In this embodiment, a smart interactive tablet with virtual keys is provided, including a mainboard and a touch screen running an operating system, a first bracket, a frame and an actuator; wherein: the frame includes an outer side and an inner side; a virtual key area is provided on the outer side of the frame, and the virtual key area is used to receive a user's touch operation and respond to the user's touch operation; a vibration enhancement area formed by a depression is provided on the inner side of the frame, and the vibration enhancement area is arranged corresponding to the position of the virtual key area. When subjected to the same force, the amplitude of the vibration enhancement area is greater than that of other areas on the inner side of the frame; a pressure detection module is also provided in the vibration enhancement area; the actuator is communicatively connected to the pressure detection module, and when the actuator is triggered to generate vibration, the vibration enhancement area and the virtual key area are driven to vibrate through the first bracket. By setting the vibration enhancement area on the inner side of the frame and the virtual key area on the outer side of the frame, the frame structure is avoided from being opened, the appearance of the whole machine is improved, and the dustproof and waterproof performance are increased, meeting the requirements of the development trend of thin and light intelligent interactive tablets; by fixing the pressure detection module in the vibration enhancement area, the actuator is connected to the pressure detection module in communication, and the vibration force is transmitted to the virtual key area through the vibration enhancement area, so that the vibration feedback combined with pressure detection technology can be used to simulate the pressing and lifting feedback and touch positioning of mechanical keys. In addition, the setting of the vibration enhancement area formed by the depression can provide extra space to accommodate the pressure detection module on the one hand, and on the other hand, the virtual key area is set in the vibration enhancement area, and the actuator transmits the vibration driving force to the vibration enhancement area formed by the depression, which can effectively drive the virtual key area to generate vibration feedback, which can greatly improve the user experience. Thereby, the mechanical buttons of the existing intelligent interactive tablets can solve the problems of discontinuity and unsightly appearance of the intelligent interactive tablets, affecting the integrated appearance of the intelligent interactive tablet products, reducing the dustproof and waterproof performance of the products, and failing to meet the requirements of the development trend of thin and light intelligent interactive tablets.

[0067] In one embodiment, the virtual key area is used to respond to the user's touch operation by vibrating under the drive of an actuator to achieve tactile feedback or sliding feedback.

[0068] In one embodiment, a vibration enhancement area 112 is provided in the form of a depression on the inner side of the frame 11, and the length of the vibration enhancement area 112 on the inner side of the frame exceeds the length of the virtual key area 111 on the outer side of the frame; preferably, the vibration enhancement area 112 is formed by local subtractive processing and thinning.

[0069] On the other hand, after the frame of the smart interactive tablet is thinned, its supporting effect will inevitably be reduced, especially for large-sized smart interactive tablets. The frame needs to support components such as the display module, and the frame will deform during use or transportation. In response to the above technical problems, the present application proposes to set connecting ribs 113 on the frame. Specifically, Figure 3 As shown, the inner side of the frame 11 extends in the direction away from the outer side of the frame to form a connecting rib 113, and the connecting rib 113 forms a T-shaped structure with the frame 11. The connecting rib 113 is used to ensure that the entire frame 11 has sufficient bending rigidity. For example, the entire frame 11 can be processed by extrusion molding technology.

[0070] The inner side or outer side of the frame is distinguished by the side facing the inside and outside of the smart interactive tablet. The side facing the inside of the smart interactive tablet is the inner side of the frame, and the side facing the outside of the smart interactive tablet is the outer side of the frame.

[0071] The vibration enhancement area 112 is disposed inside the frame and occupies a portion of the surface inside the frame. In this case, a recessed space is formed inside the frame. Figure 3 shown.

[0072] Furthermore, in order to solve the problem that the current virtual keys have only a single tactile function, the present application also provides a virtual key intelligent interactive tablet with multiple interactive operations. Figure 4 As shown, a virtual key area 111 is arranged outside the frame. In response to the user's touch operation, the virtual key area 111 vibrates the user under the drive of the actuator 13 to achieve tactile feedback or sliding feedback.

[0073] Specifically, Figure 5As shown, due to the vibration of the actuator 13, the bending deformation of the virtual key area 111 at the center position is relatively the largest, and the bending deformation at the edge position is relatively small. In order to ensure a sufficiently large vibration amount and pressure inspection accuracy, the virtual key area 111 includes a left edge area 1111, a middle effective area 1112 and a right edge area 1113; the left edge area 1111 and the right edge area 1113 cannot be pressed or slid, and the middle effective area 1112 can be effectively pressed. and sliding operations, wherein the middle effective area 1112 includes a plurality of button function areas 11121 arranged in succession, wherein each button function area 11121 is preset to correspond to a certain button function, for example, one button function area corresponds to a power button, one button function area corresponds to a volume or brightness adjustment button, or one button function area corresponds to a menu button, etc.; illustratively, when the volume or brightness adjustment is activated, sliding to the left means lowering the volume or brightness, and during the sliding process, the actuator simultaneously provides tactile feedback, which can simulate the pressing or stagnating feeling of a physical button. For example, Figure 5 As shown, the middle effective area 1112 includes five consecutively arranged key function areas 11121. In addition, to ensure that different pressing positions have the same vibration feeling, different driving voltages are applied to the actuator at different positions, that is, the voltage amplitude at the center of the virtual key area is the smallest and gradually increases toward both sides.

[0074] From the above, it can be seen that the further technical contribution of the present application lies in that by setting a virtual key area on the outside of the frame, multiple key functions are continuously concentrated in the virtual key area, so that virtual key operations at different positions can be realized (for example, interactive operations such as pressing functions and continuous sliding at different positions can be realized), and vibration driven by the actuator can realize tactile feedback and sliding feedback.

[0075] In this embodiment, a vibration enhancement area is set on the inner side of the frame, a virtual key area is set on the outer side of the frame, and the pressure detection module is fixedly installed in the vibration enhancement area. The pressure detection module can detect the deformation of the virtual key area of ​​the frame to realize the detection of the pressing event, thereby avoiding the need to open holes in the shell and ensuring that there are no gaps at the virtual key positions. This ensures that the appearance of the smart interactive tablet product is beautiful while also realizing the function of the key switch, which is different from the key switch in the prior art, which requires a hole to be opened in the shell for installation and has a key gap in the appearance, and which is different from the prior art which uses mechanical keys and requires a certain displacement stroke to press the key to start the key switch.

[0076] In one embodiment, the smart interactive tablet 1 with virtual buttons further includes a processing module (not shown), which is used to determine whether the pressure value transmitted by the pressure detection module 12 exceeds a preset pressure threshold, and output a control signal to the actuator 13 in the smart interactive tablet 1 with virtual buttons when the pressure value exceeds the preset pressure threshold. The preset pressure threshold may be one or more, and the number of preset pressure thresholds may be set as needed. When there are multiple preset pressure thresholds, the actuator 13 may also be set with multiple vibration modes accordingly, and different vibration amplitudes and vibration frequencies may be generated according to the control instructions output by the processing module, which may be set according to actual needs.

[0077] The processing module has data processing capabilities and signal processing capabilities, and can be an integrated circuit chip. For example, the processing module can be a general-purpose processor, DSP (Digital Signal Processor), FPGA (Field Programmable Gate Array) or other programmable logic devices, etc. The general-purpose processor can be a microprocessor, MCU (Microcontroller Unit) or any conventional processor, etc.

[0078] In one embodiment, the pressure detection module 12 is fixedly installed in the vibration enhancement area 112 .

[0079] Specifically, Figure 7 As shown, the pressure detection module 12 includes a circuit board 121 and a plurality of pressure sensors 122 , and the plurality of pressure sensors 122 are respectively soldered on the circuit board 121 .

[0080] A plurality of pressure sensors 122 are coupled to a plurality of key function areas 11121 of the virtual key area 111. The number of the pressure sensors 122 may be determined according to the number of key function areas 11121 of the virtual key area 111. The number of the pressure sensors 122 may correspond one-to-one to the number of key function areas 11121 of the virtual key area 111, or may not correspond one-to-one to the number of key function areas 11121 of the virtual key area 111. When the number of the pressure sensors 122 does not correspond one-to-one to the number of key function areas 11121 of the virtual key area 111, an algorithm may be used to determine the signal characteristics at different pressing positions between two pressure sensors to locate a greater number of key function areas.

[0081] When the user touches and presses the virtual key area 111, the pressure sensors 122 detect the bending strain at their respective positions and output voltage signals with different pressure values. The touch positioning and pressure detection functions can be realized by calibrating and algorithmically controlling the multi-channel output signals.

[0082] For example, taking one of the pressure sensors as an example, the pressure sensor 122 is coupled to a corresponding key function area 11121 in the virtual key area 111, and the other end of the pressure sensor 122 is electrically connected to a processing module. When the pressure sensor 122 is working, it outputs the pressure value to the processing module, and the processing module determines whether the pressure value exceeds the preset pressure threshold. When the pressure value exceeds the preset pressure threshold, it outputs a control signal to the actuator 13 to control the actuator to generate corresponding vibration. Among them, the preset pressure threshold can be one or more, and the number of preset pressure thresholds can be set as needed. When there are multiple preset pressure thresholds, the actuator 13 can also set multiple vibration modes accordingly, and generate different vibration amplitudes and vibration frequencies according to the control instructions output by the processing module, which can be set according to actual needs.

[0083] For example, the pressure sensor 122 is used for pressure and positioning detection, and may include a resistive strain gauge pressure sensor or a piezoelectric ceramic pressure sensor.

[0084] In this embodiment, the pressure detection module is fixedly installed in the vibration enhancement area, and the pressure sensors in the pressure detection module are coupled to the key function areas of the virtual key area in a one-to-one correspondence. When the user touches and presses the virtual key area, the pressure sensors detect the bending strain at their respective positions, and output different pressure value voltage signals to the external processing module for processing. By calibrating and algorithmically controlling the multi-channel output signals, touch positioning and pressure detection at different positions can be achieved.

[0085] Furthermore, the smart interactive tablet 1 with virtual buttons also includes a fixing component (not shown). The pressure detection module 12 is fixedly installed in the vibration enhancement area 112, and specifically, the circuit board 121 of the pressure detection module 12 is fixedly installed in the vibration enhancement area 112 through the fixing component.

[0086] For example, the fixing component is glue, and the circuit board 121 of the pressure detection module 12 is fixedly installed in the vibration enhancement area 112 by gluing, so that the circuit board 121 of the pressure detection module 12 can be more firmly installed in the vibration enhancement area 112 by gluing.

[0087] For another example, the fixing component is a screw, and the circuit board 121 of the pressure detection module 12 is fixedly installed in the vibration enhanced area 112 by the screw. At this time, the screw is fixed from the inside of the vibration enhanced area 112. The length of the screw is greater than the thickness of the circuit board 121, and less than the sum of the thickness of the circuit board 121 and the vibration enhanced area 112, so that the screw cannot pass through the vibration enhanced area 112. The circuit board 121 of the pressure detection module 12 can be more firmly installed in the vibration enhanced area 112 by screw locking, and it is more convenient to disassemble and assemble.

[0088] In one embodiment, Figure 1 and Figure 8 As shown, the smart interactive tablet 1 with virtual buttons further includes a back panel 15 and a rear shell 16 , and the rear shell 16 is fixedly mounted on the back panel 15 .

[0089] The first bracket 14 includes a connecting portion 143, a first plane 141 and a second plane 142 parallel to each other, the first plane 141 is fixedly connected to the second plane 142 via the connecting portion 143, the first plane 141 abuts against the geometric center position of the vibration enhancement area 112, and the second plane 142 passes through the avoidance area 151 designed at the corresponding position of the back plate 15.

[0090] The actuator 13 is fixedly mounted on the second plane 142 of the first bracket 14 , and its vibration direction is parallel to the plane where the back plate 15 is located.

[0091] Specifically, one end of the actuator 13 is coupled to the virtual key area 111, and the other end of the actuator 13 is electrically connected to a processing module. The actuator 13 is used to provide a vibration driving force, and generates corresponding vibration according to the control signal output by the processing module, and its vibration direction is parallel to the plane where the back plate 15 is located, driving the virtual key area 111 to generate bending vibration, so as to generate a tactile feedback effect and enhance the user experience.

[0092] The pressure detection module 12 can detect the force applied by the user to the virtual key area 111, determine the user's pressing intention, and output a pressure value voltage signal, and the actuator 13 generates vibration when the pressure value exceeds the preset pressure threshold. Specifically, the pressure sensor 122 of the pressure detection module 12 outputs the pressure value to the processing module when working, and the processing module determines whether the pressure value exceeds the preset pressure threshold. When the pressure value exceeds the preset pressure threshold, the control signal is output to the actuator 13 to control the actuator 13 to generate corresponding vibrations, driving the virtual key area 111 to generate bending vibrations to generate tactile feedback effects and enhance user experience. Among them, the preset pressure threshold can be one or more, and the number of preset pressure thresholds can be set as needed. When there are multiple preset pressure thresholds, the actuator 13 can also set a variety of vibration modes accordingly, and generate different vibration amplitudes and vibration frequencies according to the control instructions output by the processing module, which can be set according to actual needs.

[0093] The shape of the actuator 13 includes a cylinder or a square, and the vibration direction thereof is parallel to the plane where the back plate 15 is located.

[0094] For example, the actuator 13 may include a linear resonant actuator (LRA) or a piezoelectric ceramic actuator, wherein the piezoelectric ceramic actuator may include a single-layer piezoelectric ceramic actuator to reduce the voltage of the driving electrical signal; or may include a multi-layer piezoelectric ceramic actuator to further reduce the voltage of the driving electrical signal.

[0095] Further, the actuator 13 is fixedly mounted on the second plane 142 of the first bracket 14 . Specifically, the actuator 13 is fixedly mounted on the second plane 142 of the first bracket 14 via a fixing assembly.

[0096] For example, the fixing component is glue, and the actuator 13 is fixedly mounted on the second plane 142 of the first bracket 14 by gluing the glue, so that the actuator 13 can be more firmly mounted on the second plane 142 of the first bracket 14 by gluing.

[0097] For another example, the fixing component is a screw, and the actuator 13 is fixedly arranged on the second plane 142 of the first bracket 14 by the screw, so that the actuator 13 can be more firmly installed on the second plane 142 of the first bracket 14 by screw locking, and it is more convenient to disassemble and assemble.

[0098] In one embodiment, the first bracket 14 abuts against the vibration enhanced area 112 .

[0099] Specifically, Figure 1 , Figure 6 and Figure 8 As shown, the first bracket 14 includes a connecting portion 143, a first plane 141 and a second plane 142 parallel to each other. The first plane 141 is fixedly connected to the second plane 142 via the connecting portion 143. The first plane 141 abuts against the geometric center position of the vibration enhancement area 112. For example, the first plane 141 can be bonded to the geometric center position of the vibration enhancement area 112 by glue.

[0100] The second plane 142 passes through the avoidance area 151 designed at the corresponding position of the back plate 15. Specifically, the back plate 15 is designed with the avoidance area 151 at the corresponding position, so that the second plane 142 can pass through the avoidance area 151 of the back plate 15.

[0101] On the other hand, an actuator 13 is fixedly provided on the second plane 142 of the first bracket 14. During operation, the actuator 13 vibrates and transmits the vibration to the second plane 142, the connecting portion 143, the first plane 141 and the virtual key area 111. When the inventor designed the related structures of the virtual key area 111, the second plane 142, the connecting portion 143 and the first plane 141 of the first bracket 14, when the actuator vibrates, the first bracket will also be deformed when it vibrates accordingly. In the deformed state, the vibration waveform transmitted to the virtual key area 111 will change. Although the virtual key and sliding functions can still be realized at this time, the vibration tactile sensation is not optimal and will affect the user's touch experience. In response to the above technical problems, the present application proposes to set a reinforcing portion 144 on the first bracket. Figure 8 As shown, the first bracket 14 also includes a reinforcing portion 144, which is fixedly connected to the second plane 142 and the connecting portion 143 respectively, for ensuring that the bending stiffness of the first bracket 14 is much greater than the bending stiffness of the virtual key area 111, thereby preventing the first bracket 14 itself from being deformed under the action of the actuator 13.

[0102] Specifically, the reinforcing portion 144 is fixedly connected to the second plane 142 and the connecting portion 143, respectively. Specifically, one side angle of the reinforcing portion 144 is a right angle, the second plane 142 is vertically connected to the connecting portion 143, and the two sides of the reinforcing portion 144 at the right angle are fixedly connected to the second plane 142 and the connecting portion 143, respectively, and the surface where the reinforcing portion 144 is connected to the second plane 142 is the positive and negative surfaces of the surface where the actuator 13 is arranged on the second plane 142, so that the reinforcing portion 144 is tightly pressed against the second plane 142 and the connecting portion 143, ensuring that the bending stiffness of the first bracket 14 is much greater than the bending stiffness of the virtual key area 111, thereby avoiding deformation of the first bracket 14 itself under the action of the actuator 13.

[0103] In one embodiment, Figure 1 and Figure 6 As shown, a first gap 171 is provided between the back plate 15 and the second plane 142 of the first bracket 14 , and a first elastic damping layer 181 is provided in the first gap 171 to reduce the pressing bending and limiting effect of the virtual key area 111 .

[0104] In one embodiment, Figure 1 and Figure 6 As shown, there is a second radial gap 172 between the actuator 13 and the back plate 15, and a second elastic damping layer 182 is provided in the second radial gap 172 to constrain the actuator 13 so as to improve the user's tactile experience. There is a third radial gap 173 between the actuator 13 and the back shell 16, and a third elastic damping layer 183 is provided in the third radial gap 173 to constrain the actuator 13 so as to improve the user's tactile experience. Since the torque of the actuator 13 acting on the vibration enhancement area 112 through the first bracket 14 will cause the virtual key area 111 to twist, thereby affecting the vibration sense, a second elastic damping layer 182 and a third elastic damping layer 183 are provided in the second radial gap 172 and the third radial gap 173 respectively to constrain the actuator 13 so as to improve the user's tactile experience.

[0105] In one embodiment, as shown in FIG. 9 and FIG. 10 , another structural schematic diagram of a smart interactive tablet 1 with virtual buttons provided in the second embodiment of the present application is shown.

[0106] The structure of the smart interactive tablet with virtual keys described in this embodiment is different from the structure of the smart interactive tablet with virtual keys described in any of the above embodiments in that the smart interactive tablet with virtual keys described in this embodiment also includes a second bracket 30 and a fourth elastic damping layer 184. The fourth elastic damping layer 184 is arranged between the second bracket 30 and the actuator 13. The second bracket 30 is a bent L-shaped structure, and the first bent end of the second bracket 30 is coupled to an end face of the actuator 13 through the fourth elastic damping layer 184, and the second bent end of the second bracket 30 is fixedly mounted on the back plate 15, so as to constrain the actuator 13 from moving in different directions and improve the vibration effect. In addition, optionally, the smart interactive tablet with virtual keys described in this embodiment may not include the first elastic damping layer 181, the second elastic damping layer 182 and the third elastic damping layer 183. In this way, the assembly structure of the smart interactive tablet with virtual keys described in this embodiment can be simpler and easier to assemble.

[0107] In one embodiment, Figure 1 and Figure 2As shown, the rear shell 16 is fixedly mounted on the back plate 15. Specifically, the rear shell 16 is fixedly mounted on the back plate 15 by screws.

[0108] In one embodiment, Figure 1 , Figure 2 and Figure 6 As shown, the smart interactive tablet 1 with virtual buttons further includes a display module 19 , one side of which is fixedly mounted on the frame 11 , and the other side of which is fixedly mounted on the back panel 15 .

[0109] Specifically, one side of the display module 19 is fixedly mounted on the frame 11 by bonding, and the other side of the display module 19 is fixedly mounted on the back plate 15 by screws.

[0110] The display module 19 may be a light-emitting diode (LED) or an organic light-emitting diode (OLED).

[0111] The present application provides a smart interactive tablet 1 with virtual buttons, which is applied to a smart interactive tablet with a narrow frame. The specific working process is as follows:

[0112] When the user presses a key function area 11121 in the virtual key area 111, the key function area 11121 is deformed and detected by the pressure sensor 122 of the pressure detection module 12 coupled thereto. The pressure sensor 122 outputs the detected pressure value to the processing module, which determines whether the pressure value exceeds a preset pressure threshold. When the pressure value exceeds the preset pressure threshold, the processing module outputs a control signal to the actuator 13 to control the actuator to generate corresponding vibration, thereby driving the virtual key area 111 to generate bending vibration, so as to produce a tactile feedback effect and enhance the user experience.

[0113] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0114] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent interactive tablet with virtual buttons, comprising a mainboard running an operating system and a touch screen, characterized in that: Also includes: A first bracket, a frame and an actuator; wherein: The frame includes an outer side and an inner side; A virtual key area is arranged outside the frame, and the virtual key area is used to receive a user's touch operation and respond to the user's touch operation; A vibration enhancement area formed by a depression is arranged on the inner side of the frame, and the vibration enhancement area is arranged corresponding to the position of the virtual key area. When subjected to the same force, the vibration amplitude of the vibration enhancement area is greater than that of other areas on the inner side of the frame; The vibration enhancement area is also provided with a pressure detection module; The actuator is communicatively connected with the pressure detection module. When the actuator is triggered to generate vibration, the vibration enhancement area and the virtual key area are driven to vibrate through the first bracket.

2. The intelligent interactive tablet with virtual buttons according to claim 1, characterized in that: The virtual key area is used to respond to the user's touch operation by vibrating under the drive of the actuator to achieve tactile feedback or sliding feedback.

3. The intelligent interactive tablet with virtual buttons according to claim 1, characterized in that: The inner side of the frame extends in a direction away from the outer side of the frame to form a connecting rib, and the connecting rib and the frame form a T-shaped structure.

4. The intelligent interactive tablet with virtual buttons according to claim 1, characterized in that: The virtual key area includes a left edge area, a middle effective area and a right edge area; the left edge area and the right edge area cannot be pressed or slid, and the middle effective area is for effective pressing and sliding operations, wherein the middle effective area includes several key function areas arranged continuously.

5. The intelligent interactive tablet with virtual buttons according to claim 4, characterized in that: The pressure detection module includes a circuit board and a plurality of pressure sensors, wherein the plurality of pressure sensors are respectively welded on the circuit board; and the plurality of pressure sensors are coupled to a plurality of key function areas of the virtual key area.

6. The intelligent interactive tablet with virtual buttons according to claim 1, characterized in that: One end of the actuator is coupled to the virtual key area, and the other end of the actuator is electrically connected to a processing module.

7. The intelligent interactive tablet with virtual buttons according to claim 1, characterized in that: The intelligent interactive tablet with virtual buttons also includes a back panel and a rear shell, and the rear shell is fixedly mounted on the back panel.

8. The intelligent interactive tablet with virtual buttons according to claim 7, characterized in that: The first bracket includes a connecting portion, a first plane and a second plane parallel to each other, the first plane is fixedly connected to the second plane through the connecting portion, the first plane abuts against the geometric center position of the vibration enhancement area, and the second plane passes through the avoidance area designed at the corresponding position of the back plate; the actuator is fixedly installed on the second plane, and its vibration direction is parallel to the plane where the back plate is located.

9. The intelligent interactive tablet with virtual buttons according to claim 8, characterized in that: The first bracket also includes a reinforcement portion, and the reinforcement portion is fixedly connected to the second plane and the connection portion respectively.

10. The intelligent interactive tablet with virtual buttons according to claim 9, characterized in that: A first gap is provided between the back plate and the second plane of the first bracket, and a first elastic damping layer is arranged in the first gap.

11. The intelligent interactive tablet with virtual buttons according to claim 10, characterized in that: A second radial gap is provided between the actuator and the back plate, and a second elastic damping layer is arranged in the second radial gap; a third radial gap is provided between the actuator and the rear shell, and a third elastic damping layer is arranged in the third radial gap.

12. The intelligent interactive tablet with virtual buttons according to claim 7, characterized in that: The smart interactive tablet with virtual buttons also includes a second bracket and a fourth elastic damping layer, the first bent end of the second bracket is coupled to an end face of the actuator through the fourth elastic damping layer, and the second bent end of the second bracket is fixedly mounted on the back panel.

13. The intelligent interactive tablet with virtual buttons according to claim 7, characterized in that: The intelligent interactive tablet with virtual buttons also includes a display module, one side of the display module is fixedly mounted on the frame, and the other side of the display module is fixedly mounted on the back panel.

14. The intelligent interactive tablet with virtual buttons according to claim 1, characterized in that: The length of the vibration enhancement area on the inner side of the frame exceeds the length of the virtual key area on the outer side of the frame.

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