Interactive device
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-01-23
- Publication Date
- 2026-08-13
Smart Images
Figure CN2026074615_13082026_PF_FP_ABST
Abstract
Description
An interactive device
[0001] Related applications
[0002] This application claims priority to the following Chinese patent applications:
[0003] The application filed on February 5, 2025, with application number 2025101286146, is entitled "An Interactive Device";
[0004] The full text of the aforementioned patent is incorporated herein by reference. Technical Field
[0005] This application relates to the field of interactive technology, and more particularly to an interactive device. Background Technology
[0006] 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.
[0007] 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
[0008] 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.
[0009] An interactive device, comprising:
[0010] A touch component includes a cover plate having a touch-sensitive back surface configured to receive touch operations from a touch object;
[0011] A border is provided around the periphery of the touch component;
[0012] A fixing member is disposed on the side of the cover plate having the touch back side. 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.
[0013] A recognition module is disposed on the back of the touchscreen, adjacent to the pressing portion. The recognition module is configured to detect the stress generated when the touch object performs a touch operation on the back of the touchscreen, and generate a static force signal based on the stress; and...
[0014] The control component is configured to receive the static force signal and generate touch feedback based on the static force signal.
[0015] 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 back, and 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.
[0016] 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 identification modules.
[0017] In some embodiments of this application, 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, and the arrangement direction of the identification module and the pressing part is perpendicular to the arrangement direction of the two pressing ends.
[0018] In some embodiments of this application, 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 portion.
[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 part is less than 5 cm, and each fastener is equipped with a recognition module.
[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 part is greater than or equal to 5 cm, and the identification module extends around the periphery of the cover plate.
[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.
[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.
[0023] In some embodiments of this application, the identification module includes a first piezoelectric sensor and a signal converter. The first piezoelectric sensor is configured to detect the elastic wave and quasi-static force generated when the touch object performs a touch operation on the touch back surface, and generate an elastic wave signal and a quasi-static force signal respectively based on the elastic wave and the touch stress. The touch stress is a quasi-static force. The signal converter is configured to convert the quasi-static force signal into the static force signal.
[0024] In some embodiments of this application, the identification module includes a second piezoelectric sensor and a force sensor. The second piezoelectric sensor is configured to detect the elastic wave generated when the touch object performs a touch operation on the touch back surface, and generate an elastic wave signal based on the elastic wave. The force sensor is configured to detect the touch stress generated when the touch object performs a touch operation on the touch back surface, and generate the static force signal based on the touch stress, wherein the touch stress is a static force. Attached Figure Description
[0025] 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.
[0026] Figure 1 is a schematic diagram of the structure of the interactive device in one embodiment of this application;
[0027] Figure 2 is an enlarged view of point A in Figure 1;
[0028] Figure 3 is a partial structural schematic diagram of the interactive device in another embodiment of this application;
[0029] Figure 4 is a partial structural schematic diagram of the interactive device in another embodiment of this application;
[0030] Figure 5 is a schematic diagram of the structure of the interactive device in another embodiment of this application;
[0031] Figure 6 is a partial structural schematic diagram of the interactive device in another embodiment of this application.
[0032] Figure label:
[0033] 11. Cover plate; 111. Touch back panel; 20. Frame; 30. Fixing component; 31. Connecting part; 32. Pressing part; 321. Pressing end; 40. Identification module; 50. Soft heat insulation layer; 60. Spacer. Embodiments of the present invention
[0034] 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 are not intended to limit the scope of this application.
[0035] 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.
[0036] 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, it cannot be used to detect the placement and release of the pen. Furthermore, when the object contacts the touch surface at a slower speed, the amplitude of the generated elastic waves is small and easily drowned out by noise, causing the sensor to fail to detect the elastic wave signal, resulting in missed detections. Additionally, when a finger touches the screen surface, the softness of human skin prevents the generation of noticeable elastic wave signals.
[0037] In view of the above problems, this application provides an interactive device to solve the above technical problems.
[0038] As shown in Figures 1 and 2, the interactive device includes a touch component, a frame 20, a fixing member 30, a recognition module 40, and a control component.
[0039] The touch component includes a cover plate 11, which has a touch-sensitive back surface 111 configured to receive touch operations from a touch object. The touch-sensitive back surface 111 of the cover plate 11 is the side facing away from 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 materials of the stylus tip and stylus tail can be the same or different. The touch component can also include a screen, which can be configured 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 disposed on the display surface of the screen and is configured as a protective plate structure for the screen to prevent it from being scratched.
[0040] 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.
[0041] The fixing member 30 is disposed on the side of the cover plate 11 with the touch back 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.
[0042] The recognition module 40 is disposed on the back of the touch panel 111 and is disposed adjacent to the pressing part 32. The recognition module 40 is configured to detect the stress generated when the touch object performs a touch operation on the back of the touch panel 111 and generate a static force signal based on the stress. When the touch object presses the side of the cover plate 11 opposite to the back of the touch panel 111, the touch object performs a touch operation on the back of the touch panel 111. The touch object collides with the cover plate 11 and generates touch stress on the back of the touch panel 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 back of the touch panel 111 and is not related to the hardness or softness of the material of the colliding object or the collision speed.
[0043] The control component is configured 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.
[0044] Understandably, the recognition module 40 can detect the touch stress generated by the collision between the touch object and the cover plate 11. Since the touch stress is independent of the collision speed of the object, even when the touch object contacts the cover plate 11 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.
[0045] It should be noted that the touch stress is generated on the back of the touchpad 111, thus enabling zero writing height. Since touch stress is generated when the object touches the back of the touchpad 111 and disappears when the object leaves the back of the touchpad 111, static force signals are generated when the object touches the back of the touchpad 111 and when it leaves the back of the touchpad 111. By detecting the 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 by reverse calculation using the detected touch stress. This allows for the detection of the force applied to the back of the touchpad 111 by the current object, enabling touch feedback to adjust the thickness of the writing strokes. It can also enable touch feedback to detect force-sensitive finger interaction events (such as 3D touch), thus allowing the interactive device to achieve more touch functions.
[0046] It should also be noted that when a person's hand or a stylus touches the cover plate 11, 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 cover plate 11 is smaller. When a foreign object (such as a sticky note or eraser) blocks the cover plate 11, it does not apply a varying force to the touch back 111. Therefore, the control component can identify whether the object pressing on the cover plate 11 is a touching object, an insect, or an obstruction based on the touch stress and refresh the database. This can solve the problem of accidental touch caused by obstructions and also solve the problem of insect interference 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 back 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.
[0047] It should also be noted that when the cover plate 11 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.
[0048] 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 back 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 cover plate 11, the touch object presses against the cover plate 11, and the touch object collides with the cover plate 11. 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 cover plate 11, the recognition module 40 can determine the material of the touch object based on the vibration frequency of the received elastic wave. For example, the material of the touch object can be plastic, metal touch, 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, thereby enabling the interactive device to achieve more touch functions.
[0049] In some embodiments, the identification module 40 includes a first piezoelectric sensor and a signal converter. The first piezoelectric sensor is configured to detect the elastic wave and touch stress generated when a touch object performs a touch operation on the touch back 111, and generate an elastic wave signal and a quasi-static force signal based on the elastic wave and touch stress, respectively, where the touch stress is a quasi-static force. The signal converter is configured 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 a piezoelectric material (e.g., piezoelectric ceramic, polyvinylidene fluoride, etc.). The piezoelectric material of the piezoelectric sensor can receive vibration waves and deform upon receiving the vibration waves, thereby generating a corresponding electrical signal. This allows for the detection of the elastic wave signal. Simultaneously, when the cover plate 11 is pressed, force is transmitted to the piezoelectric material. After being subjected to force, the surface of the piezoelectric material generates a charge. This charge can be detected by a detection system composed of a charge amplifier and becomes a voltage proportional to the applied external force. The piezoelectric sensor generates a voltage that drops when the cover plate 11 is released from pressure. Because of its characteristic of measuring charge changes, the piezoelectric sensor cannot measure charge for extended periods; therefore, it can only measure force changes over short periods. This force is called quasi-static force, allowing the piezoelectric sensor to detect quasi-static force with relatively high accuracy. The principles of detecting elastic waves and quasi-static forces by piezoelectric sensors have been disclosed in related technologies and will not be elaborated upon 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 control component is needed to control and process the first piezoelectric sensor, thus reducing the production cost of the interactive device.
[0050] In other embodiments, the identification module 40 includes a second piezoelectric sensor and a force sensor. The second piezoelectric sensor is configured to detect the elastic wave generated when a touch object performs a touch operation on the touch back 111, and generate an elastic wave signal based on the elastic wave. The force sensor is configured to detect the touch stress generated when a touch object performs a touch operation on the touch back 111, and generate 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 disposed 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 through 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 detection accuracy of the elastic wave and the static force, and further improving the touch accuracy of the interactive device.
[0051] In some embodiments, continuing to refer to Figure 1, 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. 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 fasteners 30 on the bottom side of the cover plate 11, fasteners 30 can be provided on at least one of the following: 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).
[0052] In some embodiments, each fastener 30 has at least one recognition module 40 provided on its pressing portion 32. It is understood that when the cover plate 11 is pressed with a touch object, the stress transmitted from the touch position is distributed among multiple fasteners 30. By providing at least one recognition module 40 near the pressing portion 32 of each fastener 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.
[0053] In other embodiments, as shown in FIG5, the recognition module 40 extends around the periphery of the cover plate 11 to ensure 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 back surface 111.
[0054] 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.
[0055] Referring again to Figures 1 and 2, 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 is arranged adjacent to the pressing ends 321 of the pressing part 32. 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 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 and top sides of the cover plate 11; if the pressing part 32 is located on the left 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 and right sides of the cover plate 11.
[0056] 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 back of the touch 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.
[0057] 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.
[0058] As shown in Figure 3, in some embodiments, the recognition module 40 is sandwiched between the pressing part 32 and the touch back surface 111, so that the recognition module 40 can detect the touch stress in the area of the touch back 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 back surface 111 is pressed with a touch object, the force transmitted from the touch back 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 back surface. The force applied to the 111 is related to the magnitude of the force applied, regardless of the pressing position. This allows 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 back 111 by adhesive. After the recognition module 40 is adhered to the touch back 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.
[0059] 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.
[0060] As shown in Figure 4, 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.
[0061] It should be noted that, taking the recognition module 40 as a piezoelectric sensor, when the cover plate 11 is pressed normally, the recognition module 40 generates a positive electrical signal 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 cover plate 11 (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 torsional 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 back 111, if the surface of the pressing part 32 facing the cover plate 11 is not parallel to the touch back 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 back 111, which requires high processing accuracy and assembly accuracy.
[0062] 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 back 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 cover plate 11, 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.
[0063] 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.
[0064] As shown in Figure 1, in some embodiments, the length of the pressing portion 32 is less than 5 cm in the arrangement direction XX of the two pressing ends 321. Each fixing member 30 is equipped with an identification module 40, making the fixing member 30 a short block. This reduces the cost of the fixing member 30, simplifies installation for workers, and the identification module 40 only needs a short length to meet the detection requirements. Therefore, the identification module 40 does not need a large aspect ratio, making it easier to manufacture. The identification module 40 can use a common and inexpensive piezoelectric ceramic sensor. The length of the pressing portion 32 can be 4.5 cm, 4 cm, 3 cm, or other lengths.
[0065] As shown in Figure 5, in some embodiments, in the arrangement direction XX of the two pressing ends 321, the length of the pressing part 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 part 32, preventing signal detection blind spots. The length of the pressing part 32 can be 5 cm, 6 cm, 8 cm, or other lengths.
[0066] As shown in FIG6, 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.
[0067] It is understandable that when one 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 it is pressed, 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 to separate 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.
[0068] 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.
[0069] 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.
[0070] 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 back 111, and the recognition module 40 can also be provided on the side of the pressing part 32 away from the frame 20.
[0071] 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, wherein, include: A touch component includes a cover plate having a touch-sensitive back surface configured to receive touch operations from a touch object; A border is provided around the periphery of the touch component; A fixing member is disposed on the side of the cover plate having the touch back side. 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 back of the touch device and adjacent to the pressing part. The identification module is configured to detect the touch stress generated when the touch object performs a touch operation on the back of the touch device, and generate a static force signal based on the touch stress. as well as, The control component is configured to receive the static force signal and generate touch feedback based on the static force signal.
2. The interactive device according to claim 1, wherein, The recognition module is further configured to detect the elastic wave generated when the touch object performs a touch operation on the back of the touch device, and generate an elastic wave signal based on the elastic wave. The control component is further configured to receive the elastic wave signal and generate touch feedback based on the elastic wave signal.
3. The interactive device according to claim 1, wherein, 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, wherein, 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.
5. The interactive device according to claim 4, wherein, 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.
6. The interactive device according to claim 4, wherein, 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.
7. The interactive device according to claim 4, wherein, 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.
8. The interactive device according to claim 1, wherein, 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.
9. The interactive device according to claim 8, wherein, The spacer is located at one end of the pressing part and is disposed adjacent to the pressing part.
10. The interactive device according to claim 1, wherein, The identification module includes a first piezoelectric sensor and a signal converter. The first piezoelectric sensor is configured to detect the elastic wave and the touch stress generated when the touch object performs a touch operation on the touch back. It 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 is configured to convert the quasi-static force signal into the static force signal.
11. The interactive device according to claim 1, wherein, The identification module includes a second piezoelectric sensor and a force sensor. The second piezoelectric sensor is configured to detect the elastic wave generated when the touch object performs a touch operation on the back of the touch device, and generate an elastic wave signal based on the elastic wave. The force sensor is configured to detect the touch stress generated when the touch object performs a touch operation on the back of the touch device, and generate a static force signal based on the touch stress, wherein the touch stress is a static force.