An interactive device

Abstract

The application discloses an interactive device, which comprises a touch component, a frame, a fixing member, an identification module and a control component. The touch component comprises a cover plate, which has a touch surface for accepting a touch operation of a touch object. The frame is arranged around the periphery of the touch component. The fixing member comprises a connecting part and a pressing part. The connecting part is connected with the frame, and the pressing part is located on the inner side of the frame and connected with the connecting part. The pressing part presses and fixes the cover plate on the frame. The identification module is arranged on the touch surface and is arranged adjacent to the pressing part. The identification module is used for detecting a touch stress generated when the touch object performs a touch operation on the touch surface and generating a static force signal according to the touch stress. The control component is used for receiving the static force signal and forming a touch feedback according to the static force signal. Even if the elastic wave signal is interfered and submerged by the noise signal, the identification module can still generate the static force signal according to the detected touch stress, so that the signal missing detection can be prevented.

Description

Technical Field

[0001] This application relates to the field of interactive technology, and more particularly to an interactive device. Background Technology

[0002] With the development of mobile electronic devices, interactive devices with touch functions are increasingly widely used in human-computer interfaces. Elastic wave touch is a widely used touch method. By setting an elastic wave sensor in the interactive device, when a touch object performs a touch operation on the touch surface of the interactive device, the touch object collides with the touch surface to generate elastic waves. The elastic wave sensor can detect the elastic wave signal, and the interactive device can make corresponding touch responses based on the detected elastic wave signal.

[0003] However, in related technologies, when the object touches the touch surface at a relatively slow speed, the amplitude of the generated elastic wave is small and easily overwhelmed by noise signals, which causes the elastic wave sensor to fail to detect the elastic wave signal, resulting in signal missed detection. Summary of the Invention

[0004] This application provides an interactive device that enables the recognition module to generate a static force signal based on the detected touch stress even if the elastic wave signal is overwhelmed by noise signal interference, thereby preventing signal missed detection.

[0005] Specifically, an interactive device includes:

[0006] A touch component, including a cover plate having a touch surface for receiving touch operations from a touch object;

[0007] A border is provided around the periphery of the touch component;

[0008] A fixing member is provided on the side of the cover plate having the touch surface. The fixing member includes a connecting part and a pressing part. The connecting part is connected to the frame, and the pressing part is located inside the frame and connected to the connecting part. The pressing part presses and fixes the cover plate to the frame.

[0009] A recognition module is disposed on the touch surface, adjacent to the pressing portion. The recognition module is used to detect the stress generated when the touch object performs a touch operation on the touch surface, and to generate a static force signal based on the stress; and...

[0010] A control component is used to receive the static force signal and generate touch feedback based on the static force signal.

[0011] In some embodiments of this application, the recognition module is further configured to detect the elastic wave signal generated when the touch object performs a touch operation on the touch surface. The control component is further configured to receive the elastic wave, generate an elastic wave signal based on the elastic wave, and form touch feedback based on the elastic wave signal. The recognition module can also determine the material of the touch object based on the vibration frequency of the received elastic wave, and the control component can also provide corresponding touch feedback based on the material of the touch object to distinguish and display the touch trajectory of different types of touch objects, thereby enabling functions such as pen writing, pen erasing, and finger selection.

[0012] In some embodiments of this application, multiple fasteners are provided, and the multiple fasteners are distributed at intervals around the periphery of the cover plate. Each fastener's pressing portion is equipped with at least one of the recognition modules. This allows the cover plate to be placed more stably. By providing at least one recognition module near the pressing portion of each fastener, the touch stress at the location near each pressing portion can be detected by the recognition module, thus obtaining more accurate touch stress.

[0013] In some embodiments of this application, the pressing portion has two pressing ends disposed opposite to each other. The recognition module and the fixing member are arranged along the arrangement direction of the two pressing ends, and the recognition module is disposed adjacent to the pressing ends of the pressing portion. This arrangement allows the recognition module to be positioned near the pressing ends of the pressing portion, enabling it to better detect touch stress near the pressing ends. Furthermore, the recognition module can detect more touch stress without encroaching on the display area of ​​the touch component, making it easier to design a narrow bezel for the interactive device.

[0014] In some embodiments of this application, the recognition module is provided at both pressing ends of the pressing portion. This allows for the detection of more touch stress, reduces signal detection blind spots, and improves detection accuracy.

[0015] In some embodiments of this application, the recognition module is sandwiched between the pressing portion and the touch surface. This allows the recognition module to detect the complete pressing force below the pressing portion, and the touch stress generated by the force on the recognition module in the thickness direction of the pressing portion is greater, which can further improve the detection accuracy of touch stress. At the same time, the pressing portion can play a pressure-holding role, enhancing the adhesion reliability of the recognition module, and eliminating the need for an additional pressure-holding process, thereby increasing the reliability and mass production feasibility of the interactive device.

[0016] In some embodiments of this application, a soft heat insulation layer is provided between the pressing part and the recognition module. The soft heat insulation layer can separate the pressing part from the recognition module, playing a role in heat insulation and pressure reduction. It can prevent the temperature rise of the pressing part from being transmitted to the recognition module, causing a sudden temperature change and temperature drift in the recognition module. It can also prevent the pressing part from partially contacting the recognition module and damaging the recognition module.

[0017] In some embodiments of this application, the pressing part has two pressing ends arranged opposite to each other, and the recognition module is disposed on the side of the pressing part away from the frame. The arrangement direction of the recognition module and the pressing part is perpendicular to the arrangement direction of the two pressing ends. The recognition module does not need to be pressed by the pressing part, and the requirement for the parallelism between the surface of the pressing part facing the cover and the touch surface is lower, thereby reducing the requirements for processing accuracy and assembly accuracy. This can reduce the production cost and mass production feasibility of the interactive device. Furthermore, when the pressing position is at any position on the touch surface, the piezoelectric sensor will always generate an in-phase electrical signal, which can reduce the probability of signal detection blind spots.

[0018] In some embodiments of this application, the two ends of the recognition module are respectively aligned with the two pressing ends; or, the two ends of the recognition module protrude beyond the pressing portion. This can reduce the probability of signal detection blind spots, maximizing the amount of detected touch stress and minimizing signal detection blind spots.

[0019] In some embodiments of this application, multiple fasteners are provided, and the multiple fasteners are distributed at intervals around the periphery of the cover plate; wherein, in the arrangement direction of the two pressing ends, the length of the pressing portion is less than 5 cm, and each fastener is equipped with a recognition module. The recognition module only needs to have a short length to meet the detection requirements, so the recognition module does not need to have a large aspect ratio, thus making the recognition module easier to manufacture. The recognition module can use a relatively common and inexpensive piezoelectric ceramic sensor.

[0020] In some embodiments of this application, multiple fasteners are provided, and the multiple fasteners are distributed at intervals around the periphery of the cover plate; wherein, in the arrangement direction of the two pressing ends, the length of the pressing portion is greater than or equal to 5 cm, and the recognition module extends around the periphery of the cover plate. This ensures that the recognition module can detect the touch stress near each pressing portion, preventing signal detection blind spots.

[0021] In some embodiments of this application, the interactive device further includes a spacer disposed between the outer periphery of the cover plate and the frame, the spacer separating the cover plate from the frame. This ensures that at the pressing portion, the side of the cover plate and the frame do not slide relative to each other or tend to slide, thereby preventing friction between the cover plate and the frame and reducing or even eliminating the impact of friction on the accuracy of touch stress.

[0022] In some embodiments of this application, the spacer is located at one end of the pressing portion and is disposed adjacent to the pressing portion. This ensures that the side of the cover plate does not contact the frame at the pressing portion.

[0023] In some embodiments of this application, the recognition module includes a first piezoelectric sensor and a signal converter. The first piezoelectric sensor detects the elastic wave and quasi-static force generated when the touch object performs a touch operation on the touch surface, and generates an elastic wave signal and a quasi-static force signal based on the elastic wave and the touch stress, respectively. The touch stress is a quasi-static force. The signal converter converts the quasi-static force signal into a static force signal. This reduces the number of sensors, and only one set of control components is needed to control and process the signal of the first piezoelectric sensor, thereby reducing the production cost of the interactive device.

[0024] In some embodiments of this application, the identification module includes a second piezoelectric sensor and a force sensor. The second piezoelectric sensor detects the elastic wave generated when the object touches the touch surface, and generates an elastic wave signal based on the elastic wave. The force sensor detects the touch stress generated when the object touches the touch surface, and generates a static force signal based on the touch stress, where the touch stress is a static force. This ensures that the detection of the elastic wave signal and the static force signal do not interfere with each other, thereby improving the detection accuracy of the elastic wave and touch stress, and further improving the touch accuracy of the interactive device.

[0025] The beneficial effects of this application are as follows: The recognition module can detect the touch stress generated by the collision between the touch object and the touch surface. Since the touch stress is independent of the collision speed of the object, even when the touch object contacts the touch surface at a relatively slow speed, significant touch stress will still be generated. Even if the elastic wave signal is submerged by noise interference, the recognition module can still generate a static force signal based on the detected touch stress, thereby preventing signal loss. The control component can also generate touch feedback based on the static force signal, thereby improving the touch accuracy of the interactive device. Both the elastic wave and the static force are generated on the touch surface, thus achieving zero writing height. In addition, by detecting the touch stress, the pen-dropping and pen-lifting actions of the touch object can be detected, and the force magnitude at the touch position can be calculated inversely from the detected touch stress, thereby detecting the force value applied to the touch surface by the current touch object, realizing touch feedback to adjust the thickness of the writing strokes, and also... This technology enables touch feedback, such as recognizing force-sensitive finger interactions, allowing interactive devices to perform more touch functions. Furthermore, the control component can identify whether the pressure on the touch surface is from a physical object, an insect, or an obstruction based on static force signals, and refresh the database accordingly. This solves the problem of accidental touches caused by obstructions and addresses the issue of insect interference in outdoor environments. It also eliminates the need for the touch structure to maintain a consistent height between the optical grid and the touch surface, reducing the requirements for consistency in the touch structure and reducing the need for a thicker cover plate, thus reducing the weight of the interactive device. Additionally, by placing the recognition module adjacent to the pressing part, the module can contact or separate from the pressing part, making it easier and more accurate to detect more touch stress. This improves the detection sensitivity and accuracy of the recognition module, thereby enhancing the touch sensitivity and accuracy of the interactive device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the interactive device in one embodiment of this application;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 This is a partial structural schematic diagram of the interactive device in another embodiment of this application;

[0030] Figure 4 This is a partial structural schematic diagram of the interactive device in another embodiment of this application;

[0031] Figure 5 This is a schematic diagram of the structure of the interactive device in another embodiment of this application;

[0032] Figure 6 This is a partial structural schematic diagram of the interactive device in another embodiment of this application.

[0033] Figure label:

[0034] 11. Cover plate; 111. Touch surface; 20. Frame; 30. Fixing component; 31. Connecting part; 32. Pressing part; 321. Pressing end; 40. Identification module; 50. Soft heat insulation layer; 60. Spacer. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] In infrared touch interactive devices, multiple infrared sensors are installed. The light emitted by these sensors forms a light grid, which is usually located above the cover plate of the interactive device and has a certain distance from the screen. This distance is usually greater than 2 millimeters. When a touch object (such as a finger or stylus) writes on the surface of the cover plate, the general process is to first press the touch object, move it when it touches the surface of the cover plate, and finally lift the touch object. The interactive device receives the touch signal and makes a corresponding touch response based on the touch signal. Infrared touch has an inherent limitation that the writing height cannot be zero. Furthermore, if the cover plate is too thin, it is easy for the cover plate to vibrate and block the light grid during writing. Therefore, in related technologies, in order to ensure the rigidity of the cover plate, it is usually made thicker, but this increases the weight of the interactive device.

[0037] In interactive devices employing elastic wave touch control, an elastic wave sensor is incorporated. When an object touches the touch surface, the collision generates elastic waves, which the sensor detects. The device can then respond accordingly. However, elastic wave signals are only generated when the object collides with the glass at a relatively high speed. Therefore, they cannot be used to detect pen strokes. Furthermore, when the object contacts the touch surface at a slower speed, the resulting elastic waves are smaller and easily masked by noise, causing the sensor to miss the signal and leading to signal loss. Additionally, when a finger touches the screen surface, the softness of human skin prevents the generation of noticeable elastic wave signals.

[0038] In view of the above problems, this application provides an interactive device to solve the above technical problems.

[0039] Specifically, such as Figure 1 and Figure 2 As shown, the interactive device includes a touch component, a frame 20, a fixing member 30, a recognition module 40, and a control component.

[0040] The touch component includes a cover plate 11, which has a touch surface 111 for receiving touch operations from a touch object. The touch surface 111 of the cover plate 11 is the side facing the user. The cover plate 11 can be made of transparent glass, transparent plastic, or other materials. The touch object can be a hand or a stylus, etc. The hand can include the fingertips, knuckles, palm, back of hand, etc. The stylus is generally a component that is used with the interactive device. The stylus can include a stylus tip and a stylus tail, and the stylus tip and stylus tail can be made of the same or different materials. The touch component can also include a screen, which can be used to display various information. The screen can be an LED (Light Emitting Diode) screen, an OLED (Organic Light-Emitting Diode) screen, an LCD (Liquid Crystal Display) screen, or other types. The cover plate 11 is a plate structure disposed on the display surface of the screen to provide protection for the screen and prevent the screen from being scratched.

[0041] The bezel 20 is arranged around the periphery of the touch component. The bezel 20 is an edge support component of the interactive device, which can integrate multiple components in the interactive device and provide support and protection for the touch component. The bezel 20 can be made of plastic, metal or other materials.

[0042] The fixing member 30 is disposed on the side of the cover plate 11 with the touch surface 111. The fixing member 30 includes a connecting part 31 and a pressing part 32. The connecting part 31 is connected to the frame 20, and the pressing part 32 is located inside the frame 20 and connected to the connecting part 31. The pressing part 32 presses and fixes the cover plate 11 to the frame 20. The fixing member 30 can press and fix the cover plate 11 to the frame 20, making the cover plate 11 more stable. At the same time, it can reduce the shaking of the cover plate 11 during the use of the interactive device, and also reduce the shaking of the entire interactive device when playing loud audio.

[0043] The identification module 40 is disposed on the touch surface 111 and is disposed adjacent to the pressing part 32. The identification module 40 is used to detect the stress generated when the touch object performs a touch operation on the touch surface 111 and generate a static force signal based on the stress. When the touch object performs a touch operation on the touch surface 111, the touch object presses the touch surface 111, the touch object collides with the touch surface 111 and generates touch stress on the touch surface 111. The steady-state signal corresponding to the touch stress is a static force signal (extremely low frequency 0.01Hz to 10Hz). The touch stress is only related to the magnitude of the force applied by the touch object to the touch surface 111 and is not related to the hardness or softness of the material of the colliding object or the collision speed.

[0044] The control component is used to receive static force signals and generate touch feedback based on the static force signals. The control component can be a microcontroller or a main control chip, etc.

[0045] Understandably, the recognition module 40 can detect the touch stress generated when the touch object collides with the touch surface 111. Since the touch stress is independent of the collision speed of the colliding object, even when the touch object contacts the touch surface 111 at a relatively slow speed, significant touch stress will still be generated. Even if the elastic wave signal is overwhelmed by noise signal interference, the recognition module 40 can still generate a static force signal based on the detected touch stress, thereby preventing signal misses. The control component can also generate touch feedback based on the static force signal, thereby improving the touch accuracy of the interactive device.

[0046] It should be noted that touch stress is generated on the touch surface 111, thus enabling zero writing height. Since touch stress is generated when the object touches the touch surface 111 and disappears when the object leaves the touch surface 111, static force signals are generated when the object touches the touch surface 111 and when it leaves the touch surface 111. By detecting touch stress, the pen-dropping and pen-lifting actions of the object can be detected. Furthermore, the magnitude of the force at the touch position can be calculated inversely from the detected touch stress. This allows for the detection of the force applied to the touch surface 111 by the current object, enabling touch feedback to adjust the thickness of the writing strokes. It can also enable touch feedback to judge force-sensitive finger interaction events (such as 3D touch), thus allowing the interactive device to achieve more touch functions.

[0047] It should also be noted that when a person's hand or a stylus touches the touch surface 111, the force is relatively large and cannot be guaranteed to be completely consistent, resulting in a varying force. In contrast, the touch force when an insect lands on the touch surface 111 is relatively small. When a foreign object (such as a sticky note or eraser) obstructs the touch surface 111, it does not apply a varying force. Therefore, the control component can identify whether the pressure applied to the touch surface 111 is from an object, an insect, or an obstruction based on the touch stress, and refresh the database. This can solve the problem of accidental touches caused by obstructions, and also solve the problem of insects interfering with touch control in outdoor environments. In addition, it is no longer necessary to require the touch structure to maintain the height of the light grid from the touch surface 111, reducing the consistency requirements of the touch structure and eliminating the need to make the cover plate 11 thicker, thus reducing the weight of the interactive device.

[0048] It should also be noted that when the touch surface 111 is pressed with a touch object, the touch stress transmitted from the touch position is concentrated at the pressing part 32 of the fixing member 30, resulting in more touch stress at the pressing part 32 and more static force signals generated. In this application, by setting the recognition module 40 adjacent to the pressing part 32, the recognition module 40 is placed near the pressing part 32. The recognition module 40 can contact or separate from the pressing part 32, making it easier for the recognition module 40 to detect more touch stress and the detected touch stress is more accurate. This can improve the detection sensitivity and accuracy of the recognition module 40, thereby improving the touch sensitivity and accuracy of the interactive device.

[0049] In some embodiments, the identification module 40 is further configured to detect the elastic wave generated when the touch object performs a touch operation on the touch surface 111, and generate an elastic wave signal based on the elastic wave. The control component is further configured to receive the elastic wave signal and form touch feedback based on the elastic wave signal. It should be noted that when a touch object performs a touch operation on the touch surface 111, the touch object presses against the touch surface 111, causing a collision between the touch object and the touch surface 111. The reciprocating vibration generated by the collision produces elastic waves. The elastic wave signal (high frequency 100Hz~20kHz) is related to the material of the colliding object and the collision speed. The vibration frequency of the elastic waves generated when objects of different hardness collide is also different. Therefore, when a touch object presses against the touch surface 111, the recognition module can determine the material of the touch object based on the vibration frequency of the received elastic waves. For example, the material of the touch object can be plastic, metal, wood, or a combination of multiple materials. After determining the material of the touch object, the control component can also make corresponding touch feedback based on the material of the touch object to distinguish and display the touch trajectory of different types of touch objects. This enables functions such as pen writing, pen erasing, and finger selection, thus allowing the interactive device to achieve more touch functions.

[0050] In some embodiments, the identification module 40 includes a first piezoelectric sensor and a signal converter. The first piezoelectric sensor is used to detect the elastic wave and touch stress generated when a touch object performs a touch operation on the touch surface 111, and generates an elastic wave signal and a quasi-static force signal based on the elastic wave and touch stress, respectively. At this time, the touch stress is a quasi-static force. The signal converter is used to convert the quasi-static force signal into the static force signal. It is understood that a piezoelectric sensor is a sensor based on the piezoelectric effect. The sensitive element of the piezoelectric sensor is made of piezoelectric material (such as piezoelectric ceramic, polyvinylidene fluoride, etc.). The piezoelectric material of the piezoelectric sensor can receive vibration waves and deform when it receives vibration waves, thereby generating a corresponding electrical signal, which can detect the elastic wave signal. At the same time, when the touch surface 111 is pressed, the force is transmitted to the piezoelectric material. After the piezoelectric material is subjected to force, a charge is generated on its surface. This charge can be detected by a detection system composed of a charge amplifier and becomes a voltage output proportional to the applied external force. Then, the pressure is maintained for a period of time until the electric sensor detects that the pressure on the touch surface 111 has been released. At this point, the voltage generated by the piezoelectric sensor will drop. Due to the technical characteristic of piezoelectric sensors in measuring charge changes, they cannot measure charge for a long time, so they can only measure force changes over a short period of time. This force is called quasi-static force, which allows the piezoelectric sensor to detect quasi-static force relatively accurately. The specific principles of piezoelectric sensors in detecting elastic waves and quasi-static forces have been disclosed in related technologies and will not be elaborated here. The signal converter can fit and convert the quasi-static force signal into a static force signal. In this embodiment, a single piezoelectric sensor can simultaneously detect elastic waves and quasi-static forces, reducing the number of sensors required. Furthermore, only one set of control components is needed to control and process the signal of the first piezoelectric sensor, which can reduce the production cost of the interactive device.

[0051] In other embodiments, the identification module 40 includes a second piezoelectric sensor and a force sensor. The second piezoelectric sensor detects the elastic wave generated when a touch object performs a touch operation on the touch surface 111, and generates an elastic wave signal based on the elastic wave. The force sensor detects the touch stress generated when a touch object performs a touch operation on the touch surface 111, and generates a static force signal based on the touch stress, where the touch stress is a static force. It is understood that in this embodiment, both the second piezoelectric sensor and the force sensor are arranged adjacent to the pressing part 32. The second piezoelectric sensor and the force sensor can be located on the same side or different sides of the pressing part 32. By detecting the elastic wave and the static force respectively using the second piezoelectric sensor and the force sensor, the detection of the elastic wave and the static force can be performed without interference, thereby improving the accuracy of the detection of the elastic wave and the static force, and further improving the touch accuracy of the interactive device.

[0052] Specifically, see [link to relevant documentation] Figure 1As shown, multiple fasteners 30 are provided, and the multiple fasteners 30 are distributed at intervals around the periphery of the cover plate 11, so that the cover plate 11 can be placed more stably. Both the cover plate 11 and the frame 20 can be rectangular structures, and both the cover plate 11 and the frame 20 have four sides. The fasteners 30 can be provided only on the bottom side of the cover plate 11 (the bottom side of the cover plate 11 is the side located on the bottom side of the cover plate 11 when the interactive device is in the hanging state); or, in addition to providing the fasteners 30 on the bottom side of the cover plate 11, at least one of the following can be provided: the left side of the cover plate 11 (the left side of the cover plate 11 is the side located to the left of the bottom side when the interactive device is in the hanging state), the right side of the cover plate 11 (the right side of the cover plate 11 is the side located to the right of the bottom side when the interactive device is in the hanging state), and the top side of the cover plate 11 (the right side of the cover plate 11 is the side located on the top side of the cover plate 11 when the interactive device is in the hanging state).

[0053] In some embodiments, each fixing member 30 has at least one recognition module 40 provided on its pressing portion 32. It is understood that when a touch object presses the touch surface 111, the stress transmitted from the touch position is distributed among multiple fixing members 30. By providing at least one recognition module 40 near the pressing portion 32 of each fixing member 30, the touch stress at the location near each pressing portion 32 can be detected by the recognition module 40, and a more accurate touch stress can be obtained.

[0054] In other embodiments, such as Figure 5 As shown, the recognition module 40 extends around the periphery of the cover plate 11, ensuring that the recognition module 40 can detect the touch stress near each pressing part 32 and prevent signal detection blind spots. The recognition module 40 can be a piezoelectric ceramic sensor formed using piezoelectric ceramic as the piezoelectric material, or it can be formed using flexible PVDF (Polyvinylidene Fluoride Polymer), or it can be formed by directly sputtering other piezoelectric materials onto the touch surface 111.

[0055] In some embodiments, the pressing portion 32 is parallel to the cover plate 11, so that the pressing plate can press and fix the cover plate 11 more flatly and prevent the cover plate 11 from lifting.

[0056] See also Figure 1 and Figure 2As shown, in some embodiments, the pressing part 32 has two pressing ends 321 arranged opposite to each other. The identification module 40 and the fixing member 30 are arranged along the arrangement direction XX of the two pressing ends 321, and the identification module 40 and the pressing ends 321 of the pressing part 32 are arranged adjacent to each other. It can be understood that when the pressing part 32 is elongated, the arrangement direction XX of the two pressing ends 321 is the length direction of the pressing part 32; if the pressing part 32 is located on the bottom side or top side of the cover plate 11, the arrangement direction XX of the two pressing ends 321 of the pressing part 32 is the length direction of the bottom side and top side of the cover plate 11; if the pressing part 32 is located on the left side or right side of the cover plate 11, the arrangement direction XX of the two pressing ends 321 of the pressing part 32 is the length direction of the left side and right side of the cover plate 11.

[0057] It should also be noted that the recognition module 40 can contact or separate from the pressing end 321 of the pressing part 32, so that the recognition module 40 is located near the pressing end 321 of the pressing part 32. The recognition module 40 can better detect the touch stress near the pressing end 321 of the pressing part 32. On the basis that the recognition module 40 can more easily detect more touch stress, the recognition module 40 can not encroach on the display area of ​​the touch component (the area on the touch surface 111 located on the side of the pressing part 32 away from the frame 20), making it easier to make the interactive device into a narrow bezel 20 design.

[0058] Furthermore, both pressing ends 321 of the pressing part 32 are provided with recognition modules 40, which can ensure that the touch stress near both ends of the pressing part 32 can be detected, more touch stress can be detected, signal detection blind spots can be reduced, and detection accuracy can be improved.

[0059] like Figure 3As shown, in some other embodiments, the recognition module 40 is sandwiched between the pressing part 32 and the touch surface 111, so that the recognition module 40 can detect the touch stress in the area of ​​the touch surface 111 located below the recognition module 40. The recognition module 40 does not encroach on the display area of ​​the touch component, making it easier to design a narrow bezel 20 for the interactive device. When the touch surface 111 is pressed by a touch object, the force transmitted from the touch surface 111 to the recognition module 40 is balanced with the reaction force provided by the pressing part 32 to the touch object. Without considering the sensitivity of the recognition module 40, the touch stress detected by the recognition module 40 is only related to the touch object pressing the touch surface 111. The force applied is related to the magnitude of the pressure and is independent of the pressing position, allowing the recognition module 40 to detect the complete pressing force below the pressing part 32. Furthermore, the touch stress generated by the force applied to the recognition module 40 in the thickness direction of the pressing part 32 is greater, which can further improve the accuracy of touch stress detection. In addition, the recognition module 40 is usually adhered to the touch surface 111 by adhesive. After the recognition module 40 is adhered to the touch surface 111, pressure needs to be maintained before the adhesive dries. The pressing part 32 can play a pressure-maintaining role, which enhances the adhesion reliability of the recognition module 40 and eliminates the need for an additional pressure-maintaining process, thereby increasing the reliability and mass production feasibility of the interactive device.

[0060] A soft heat insulation layer 50 may be provided between the pressing part 32 and the identification module 40. The soft heat insulation layer 50 may be formed of soft rubber, soft sponge, soft plastic or other materials. The soft heat insulation layer 50 can separate the pressing part 32 and the identification module 40, and play a role in heat insulation and buffering pressure reduction. It can prevent the temperature of the pressing part 32 from being transferred to the identification module 40 when the temperature rises, causing the identification module 40 to experience sudden temperature changes and temperature drift. It can also prevent the pressing part 32 from partially contacting the identification module 40 and damaging the identification module 40.

[0061] like Figure 4 As shown, in another embodiment of this application, the identification module 40 is disposed on the side of the pressing part 32 away from the frame 20, and the arrangement direction of the identification module 40 and the pressing part 32 is perpendicular to the arrangement direction XX of the two pressing ends 321. It can be understood that in this embodiment, when the pressing part 32 is elongated, the arrangement direction of the identification module 40 and the pressing part 32 is the width direction of the pressing part 32. If the pressing part 32 is disposed on the bottom or top side of the cover plate 11, the arrangement direction of the identification module 40 and the pressing part 32 is the length direction of the left and right sides of the cover plate 11; if the pressing part 32 is disposed on the left or right side of the cover plate 11, the arrangement direction of the identification module 40 and the pressing part 32 is the length direction of the bottom and top sides of the cover plate 11.

[0062] It should be noted that, taking the recognition module 40 as a piezoelectric sensor, when the touch surface 111 is normally pressed, the recognition module 40 generates a positive electrical signal. Taking this as an example, when the recognition module 40 and the fixing member 30 are arranged along the arrangement direction XX of the two pressing ends 321, when the pressing position is at a certain special position on the touch surface 111 (this special position is related to the clamping position of the pressing part 32 and the overall size of the interactive device), the recognition module 40 may exhibit an abnormal twisting shape, generating an inverse electrical signal that cancels out the positive electrical signal generated by normal pressing. This causes the recognition module 40 to be unable to detect normal touch stress, resulting in a signal detection blind zone. When the recognition module 40 is sandwiched between the pressing part 32 and the touch surface 111, if the surface of the pressing part 32 facing the cover plate 11 is not parallel to the touch surface 111, the pressing part 32 cannot be fully pressed onto the recognition module 40. This will result in only a part of the recognition module 40 being pressed down by the pressing part 32, while other areas of the recognition module 40 will be suspended. This will cause uneven pressure on the recognition module 40, making it easy for the recognition module 40 to be damaged due to localized stress. Furthermore, only the pressed area of ​​the recognition module 40 can detect effective touch stress. Therefore, it is necessary to ensure that the surface of the pressing part 32 facing the cover plate 11 has a very high degree of parallelism with the touch surface 111, which requires high processing accuracy and assembly accuracy.

[0063] In this embodiment, the recognition module 40 does not need to be pressed by the pressing part 32. The requirement for the parallelism between the surface of the pressing part 32 facing the cover plate 11 and the touch surface 111 is low, which reduces the requirements for processing accuracy and assembly accuracy. This can reduce the production cost and mass production capability of the interactive device. Furthermore, when the pressing position is at any position on the touch surface 111, the piezoelectric sensor will always generate an in-phase electrical signal (always generate a positive-phase electrical signal or an out-of-phase electrical signal), which can reduce the probability of signal detection blind spots.

[0064] In some embodiments, the two ends of the recognition module 40 are aligned with the two pressing ends 321 respectively; or, the two ends of the recognition module 40 protrude from the pressing portion 32, such that in the arrangement direction XX of the two pressing ends 321 of the pressing portion 32, the length of the recognition module 40 is greater than or equal to the length of the pressing portion 32. The recognition module 40 can detect touch stress near any position of the pressing portion 32, which can reduce the probability of signal detection blind zone, so that the detected touch stress is as much as possible and the signal detection blind zone is as small as possible.

[0065] like Figure 1As shown, in some embodiments, in the arrangement direction XX of the two pressing ends 321, the length of the pressing portion 32 is less than 5 cm. Each fixing member 30 is equipped with an identification module 40, making the fixing member 30 a short block. The fixing member 30 has a lower cost and is easier for workers to install. Furthermore, the identification module 40 only needs to have a short length to meet the detection requirements, so the identification module 40 does not need to have a large aspect ratio, making the identification module 40 easier to manufacture. The identification module 40 can use a common and relatively inexpensive piezoelectric ceramic sensor. The length of the pressing portion 32 can be 4.5 cm, 4 cm, 3 cm, or other lengths.

[0066] like Figure 5 As shown, in some other embodiments, in the arrangement direction XX of the two pressing ends 321, the length of the pressing portion 32 is greater than or equal to 5 cm. The recognition module 40 extends around the periphery of the cover plate 11, making the fixing member 30 a long strip shape. This allows the cover plate 11 to be pressed flatter, making it less prone to shaking during use. Furthermore, when the interactive device plays loud audio, the overall shaking of the interactive device is reduced. In this case, the recognition module 40 needs to have a longer length to meet the detection requirements. By extending the recognition module 40 around the periphery of the cover plate 11, it can be ensured that the recognition module 40 can detect the touch stress near each pressing portion 32, preventing signal detection blind spots. The length of the pressing portion 32 can be 5 cm, 6 cm, 8 cm, or other lengths.

[0067] like Figure 6 As shown, in some embodiments of this application, the interactive device further includes a spacer 60, which is disposed between the outer periphery of the cover plate 11 and the frame 20, and the spacer 60 separates the cover plate 11 from the frame 20.

[0068] It is understandable that when an object slides or is about to slide on the surface of another object, the two objects will generate a force that resists relative movement on the contact surface. This force is friction. When the interactive device is working, it is generally in a hanging state. If the side of the cover plate 11 contacts the inside of the frame 20, friction will be generated at the contact point between the cover plate 11 and the frame 20 due to gravity. If the friction is opposite to the pressure on the cover plate 11 when pressing the touch surface 111, it will affect the accuracy of the touch stress detected by the recognition module 40. In this embodiment, the cover plate 11 is raised by the spacer 60, separating the cover plate 11 from the frame 20, so that the side of the cover plate 11 will not contact the inside of the frame 20. Furthermore, since the pressing part 32 presses and fixes the cover plate 11, there is no tendency for the side of the cover plate 11 to slide relative to or slide with the frame 20 at the pressing part 32. As a result, no friction will be generated between the cover plate 11 and the frame 20, which can reduce or even eliminate the influence of friction on the accuracy of touch stress.

[0069] Furthermore, the spacer 60 is located at one end of the pressing part 32 and is disposed adjacent to the pressing part 32, so that the spacer 60 can be disposed close to the pressing part 32, ensuring that the side of the cover plate 11 will not contact the frame 20 at the pressing part 32.

[0070] It should also be noted that a spacer 60 may be provided only on the bottom side of the cover plate 11 to separate the bottom side of the cover plate 11 from the frame 20; or, in addition to providing a spacer 60 on the bottom side of the cover plate 11, a spacer 60 may be provided on at least one of the left side, the right side, or the top side of the cover plate 11.

[0071] It should also be noted that when the spacer 60 is provided, the recognition module 40 can be provided at the pressing end 321 of the pressing part 32, the recognition module 40 can also be sandwiched between the pressing part 32 and the touch surface 111, and the recognition module 40 can also be provided on the side of the pressing part 32 away from the frame 20.

[0072] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An interactive device, characterized in that, include: A touch component, including a cover plate having a touch surface for receiving touch operations from a touch object; A border is provided around the periphery of the touch component; A fixing member is provided on the side of the cover plate having the touch surface. The fixing member includes a connecting part and a pressing part. The connecting part is connected to the frame, and the pressing part is located inside the frame and connected to the connecting part. The pressing part presses and fixes the cover plate to the frame. An identification module is disposed on the touch surface and adjacent to the pressing part. The identification module is used to detect the touch stress generated when the touch object performs a touch operation on the touch surface, and generate a static force signal based on the touch stress. as well as, A control component is used to receive the static force signal and generate touch feedback based on the static force signal.

2. The interactive device according to claim 1, characterized in that, The recognition module is also used to detect the elastic waves generated when the touch object performs a touch operation on the touch surface, and generate an elastic wave signal based on the elastic wave. The control component is also used to receive the elastic wave signal and form touch feedback based on the elastic wave signal.

3. The interactive device according to claim 1, characterized in that, The fasteners are provided in multiple ways, and the multiple fasteners are distributed at intervals around the periphery of the cover plate. Each fastener is equipped with at least one identification module in its pressing part.

4. The interactive device according to claim 1, characterized in that, The pressing part has two pressing ends arranged opposite to each other. The identification module and the fixing member are arranged along the arrangement direction of the two pressing ends, and the identification module is arranged adjacent to the pressing ends of the pressing part.

5. The interactive device according to claim 4, characterized in that, The identification module is provided at both pressing ends of the pressing part.

6. The interactive device according to claim 1, characterized in that, The recognition module is sandwiched between the pressing part and the touch surface.

7. The interactive device according to claim 6, characterized in that, A soft heat insulation layer is provided between the pressing part and the identification module.

8. The interactive device according to claim 1, characterized in that, The pressing part has two pressing ends arranged opposite to each other. The identification module is disposed on the side of the pressing part away from the frame. The arrangement direction of the identification module and the pressing part is perpendicular to the arrangement direction of the two pressing ends.

9. The interactive device according to claim 8, characterized in that, The two ends of the identification module are respectively aligned with the two pressing ends; or, the two ends of the identification module protrude from the pressing part.

10. The interactive device according to claim 8, characterized in that, Multiple fasteners are provided, and the multiple fasteners are distributed at intervals around the periphery of the cover plate; In the arrangement direction of the two pressing ends, the length of the pressing part is less than 5 cm, and each of the fixing parts is equipped with one of the identification modules.

11. The interactive device according to claim 8, characterized in that, Multiple fasteners are provided, and the multiple fasteners are distributed at intervals around the periphery of the cover plate; In the arrangement direction of the two pressing ends, the length of the pressing part is greater than or equal to 5 cm, and the identification module extends around the periphery of the cover plate.

12. The interactive device according to claim 1, characterized in that, The interactive device also includes: A spacer is disposed between the outer periphery of the cover plate and the frame, the spacer separating the cover plate from the frame.

13. The interactive device according to claim 11, characterized in that, The spacer is located at one end of the pressing part and is disposed adjacent to the pressing part.

14. The interactive device according to claim 1, characterized in that, The identification module includes a first piezoelectric sensor and a signal converter. The first piezoelectric sensor is used to detect the elastic wave and the touch stress generated when the touch object performs a touch operation on the touch surface, and generates an elastic wave signal and a quasi-static force signal according to the elastic wave and the touch stress, respectively. The touch stress is a quasi-static force. The signal converter is used to convert the quasi-static force signal into the static force signal.

15. The interactive device according to claim 1, characterized in that, The identification module includes a second piezoelectric sensor and a force sensor. The second piezoelectric sensor is used to detect the elastic wave generated when the touch object performs a touch operation on the touch surface, and generates an elastic wave signal based on the elastic wave. The force sensor is used to detect the touch stress generated when the touch object performs a touch operation on the touch surface, and generates a static force signal based on the touch stress, wherein the touch stress is a static force.

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