Stylus fixation detection device and intelligent interactive tablet

Abstract

A stylus fixation detection device and an intelligent interactive tablet are provided. [Solution] The present application provides a stylus fixation detection device and an intelligent interactive tablet. The stylus fixation detection device provided by the present application includes a first support, a switch component, a magnet component and an elastic component, the switch component is installed on the first support, the side of the magnet component facing the first support is used to attract the stylus, the switch component includes a microswitch, the microswitch includes a trigger button, the trigger button is installed facing the magnet component, the magnet component includes a trigger part, the magnet component is movably connected to the first support, and the elastic component is installed at the movable connection point of the magnet component and the first support. The stylus fixation detection device of the present application can stably and effectively detect the state of the stylus.

Description

[Technical field]

[0001] This application claims priority to a Chinese patent application with application number 202110496470.1, filed with the China Patent Office on May 7, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of electronic devices, such as stylus fixation detection devices and intelligent interactive tablets. [Background technology]

[0003] In some electronic products, such as commercial intelligent interactive tablets and electronic blackboards for teachers and students, a stylus is installed on the side of the device body to facilitate use, and the stylus can be used to write on the screen surface of the commercial intelligent interactive tablet or electronic blackboard, thereby completing interactive functions such as writing between the user and the device.

[0004] In addition, it is necessary to stably and effectively detect the connection state between the stylus and the device body, so as to make the intelligent interactive tablet or electronic blackboard perceive a state in which the stylus has been picked up by the user from the side of the body of the intelligent interactive tablet or electronic blackboard and then enter a corresponding writing or other interactive state. Summary of the Invention [Problem to be solved by the invention]

[0005] The present application provides a stylus fixation detection device and an intelligent interactive tablet, which can stably and effectively detect the state of the stylus. [Means for solving the problem]

[0006] The present application provides a stylus fixation detection device, comprising a first support, a switch component, a magnet component and an elastic component, wherein the switch component is installed on the first support, and a side of the magnet component facing away from the first support is used to attract a stylus, the switch component comprises a microswitch, the microswitch comprises a trigger button, the trigger button is installed facing the magnet component, the magnet component comprises a trigger portion, the magnet component is movably connected to the first support, and the elastic component is installed at a movable connection point between the magnet component and the first support, wherein when the fixed detection device detects the stylus, the magnet component is separated from the first support by the action of the attractive force of the stylus, and the trigger portion does not contact the trigger button, and when the fixed detection device does not detect the stylus, the elastic component puts the magnet component in a state of being attached to the first support, and the trigger portion contacts the trigger button.

[0007] Therefore, the stylus fixation detection device provided by the present application can stably and effectively detect the state of the stylus.

[0008] The present application further provides an intelligent interactive tablet, comprising a frame, a stylus and the above-mentioned stylus fixation detection device, wherein the stylus fixation detection device is installed inside the frame, a first support of the stylus fixation detection device is fixedly connected to the frame, a mounting portion is formed on at least a portion of the frame, and the stylus is disposed in the mounting portion. Effect of the Invention

[0009] The present application provides a stylus fixation detection device and an intelligent interactive tablet, the stylus fixation detection device provided by the present application includes a first support, a switch component, a magnet component and an elastic component, the switch component is installed on the first support, the side of the magnet component facing the first support is used to attract the stylus, the switch component includes a micro switch, the micro switch includes a trigger button, the trigger button is installed facing the magnet component, the magnet component includes a trigger part, the magnet component is movably connected to the first support, the elastic component is installed at the movable connection part of the magnet component and the first support, when the fixed detection device detects the stylus, the magnet component is separated from the first support by the action of the attraction force of the stylus, the trigger part does not contact the trigger button, when the fixed detection device does not detect the stylus, the elastic component makes the magnet component stick to the first support, and the trigger part contacts the trigger button. The stylus fixation detection device provided by the present application can stably and effectively detect the state of the stylus. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a schematic diagram of a partial structure of a display device. [Figure 2a] FIG. 2 is a structural schematic diagram of an example of a stylus fixation detection device according to an embodiment of the present application. [Figure 2b] FIG. 2 is a structural schematic diagram of another example of a stylus fixation detection device according to an embodiment of the present application. [Figure 3a] FIG. 2b is a schematic cross-sectional view of the stylus fixation detection device of FIG. 2a; [Figure 3b] FIG. 2c is a schematic cross-sectional view of the stylus fixation detection device of FIG. 2b; [Figure 4a] FIG. 13 is a schematic diagram of a force analysis of an example stylus fixation detection device according to an embodiment of the present application. [Figure 4b] FIG. 13 is a schematic diagram of a force analysis of another example of a stylus fixation detection device according to an embodiment of the present application. [Figure 5a] 2 is a perspective schematic diagram of an example of a first support in a stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 5b] 11 is a perspective schematic view of another example of a first support in a stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 6] 2 is a perspective schematic diagram of an example of a second support in a stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 7] 2 is a perspective schematic diagram of a stopper in an example stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 8a] 13 is a perspective schematic view of another example of a first support in a stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 8b] 13 is a schematic plan view of another example of a first support body in a stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 9a] 13 is a schematic diagram showing a connection relationship between a second support and an elastic member in another example of a stylus fixation detection device according to an embodiment of the present application. FIG. [Figure 9b] 13 is a perspective schematic view of another example of a second support in the stylus fixation detection device according to the embodiment of the present application. FIG. [Figure 10] FIG. 2 is a structural schematic diagram of an intelligent interactive tablet according to an embodiment of the present application; [Figure 11a] FIG. 2 is a partial structural schematic diagram of an intelligent interactive tablet according to an embodiment of the present application; [Figure 11b] FIG. 11B is a partially enlarged structural schematic diagram of A in FIG. [Figure 12a] FIG. 11b is a cross-sectional view taken along line BB in FIG. [Figure 12b] FIG. 11b is a cross-sectional view of another example taken along line BB in FIG. [Figure 13a] FIG. 12b is a partially enlarged schematic structural diagram showing part C in FIG. 12a. [Figure 13b] FIG. 12b is a partially enlarged schematic structural diagram showing part D in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The technical solutions of the present application are described clearly and completely below with reference to the drawings in the present application, and obviously, the described embodiments are only some embodiments of the present application rather than all embodiments.

[0012] Based on the embodiments of this application, under the premise of no creative work, all other embodiments obtained by those skilled in the art belong to the scope of protection of this application. In case of non-dispute, the following embodiments and features of the embodiments can be combined with each other.

[0013] In the description of this application, directions or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "orthogonal," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are directions or positional relationships indicated based on the drawings, and are intended only to explain and simplify the description of this application, and do not indicate or imply that the devices or elements referred to have a particular orientation or are required to be constructed and operated in a particular orientation, and therefore cannot be understood as limiting this application.

[0014] In this application, unless otherwise clearly specified and limited, the terms "implementation", "interconnection", "connection", "fixed" and the like should be broadly understood, for example, can be fixed connection, disassembled connection, or integration, can be direct connection, can be indirect connection through intermediate media, can be connection inside two components, and can be interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to specific circumstances.

[0015] It is noted that in the description of this application, the terms "first" and "second" are used only to describe different components, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the quantity of the indicated technical features. A feature qualified with "first" or "second" may explicitly or implicitly include at least one of the said features.

[0016] In some electronic products, such as commercial intelligent interactive tablets and electronic blackboards for teachers and students, a stylus is installed on the side of the device body to facilitate use, and the stylus can write on the surface of the screen of the commercial display device or learning machine to complete interactive functions such as writing between the user and the device. It is necessary to stably and effectively detect the connection state between the stylus and the device body, so as to make the intelligent interactive tablet or electronic blackboard perceive the state in which the user picks up the stylus from the side of the body of the intelligent interactive tablet or electronic blackboard and returns it, and enter the corresponding writing or other interactive state.

[0017] Fig. 1 is a partial structure schematic diagram of a display device. As shown in Fig. 1, a commercial display device in the related art includes a picture frame 10, a support 20, a Hall sensor 30, a magnet 40 and a stylus 50, where the support 20 is locked and attached to the picture frame 10, the support 20 is made of magnetic material, the magnet 40 is fixed to the support 20 by suction force, the Hall sensor 30 is fixed to the support 20, and the Hall sensor 30 is located on the side of the magnet 40 away from the stylus 50, the stylus 50 is attracted into the stylus positioning groove 101 on the finished picture frame 10 by magnetic force, and the Hall sensor 30 is used to detect the adsorption state between the stylus 50 and the stylus positioning groove 101, so that the commercial display device enters a corresponding writing or other interactive state.

[0018] However, when the above structure detects the adhesion state between the stylus and the stylus positioning groove, it has the following defects. First, due to the principle of using the Hall sensor, the Hall sensor needs to determine the exact value of the external magnetic field that can be monitored when installed in real time, so it needs to carry out multiple debugging, which leads to the limitation of the development of the above structure and reduces the processing efficiency into electronic devices. Second, the Hall sensor mainly detects the magnetic field, and when there is a similar magnetic field outside, the external magnetic field will easily interfere with the Hall sensor's detection of the existing magnetic field, which will cause the signal feedback of the Hall sensor to be inaccurate.

[0019] As a result, the present application provides a stylus fixation detection device and an intelligent interactive tablet, which can overcome the above-mentioned deficiencies.

[0020] The present application will now be described in detail with reference to the drawings and detailed description of the invention.

[0021] Fig. 2a is a structural schematic diagram of one example of a stylus fixation detection device according to an embodiment of the present application; Fig. 2b is a structural schematic diagram of another example of a stylus fixation detection device according to an embodiment of the present application; Fig. 3a is a cross-sectional schematic diagram of the stylus fixation detection device of Fig. 2a; Fig. 3b is a cross-sectional schematic diagram of the stylus fixation detection device of Fig. 2b;

[0022] An embodiment of the present application provides a stylus fixation detection device that can be installed in an electronic device, for example embedded in a case of the electronic device, to detect whether a stylus 50 is fixed at a preset position on the electronic device, where the electronic device may be a commercial display tablet or other device that needs to be used with a stylus.

[0023] As shown in Fig. 2a to Fig. 3b, the stylus fixing detection device includes components such as a first support 1, a switch component 2, a magnet component 3 and an elastic component 4, the switch component 2 is installed on the first support 1, the side of the magnet component 3 facing away from the first support 1 is used to position and attract the stylus 50, the switch component 2 includes a micro switch 21, the micro switch 21 includes a trigger button, the trigger button is installed facing the magnet component 3, the magnet component includes a trigger portion 314, in this way the micro switch 21 can be used to send a detection signal when triggered, and the magnet component 3 is movably connected to the first support 1. The elastic component 4 is installed at a movable connection point between the magnet component 3 and the first support 1, and when the fixed detection device detects the stylus 50, the magnet component 3 is separated from the first support 1 due to the action of the attractive force of the stylus 50, and the trigger portion 314 does not contact the trigger button (in this case, it can correspond to the button released state); thus, the stylus detection device detects that the stylus 50 is in an attracted state, and when the fixed detection device does not detect the stylus 50, the elastic component 4 puts the magnet component 3 in a state of being attached to the first support 1, and the trigger portion 314 contacts the trigger button, and correspondingly, the stylus detection device detects that the stylus 50 is in a released state.

[0024] Here, when the stylus 50 is in an adsorbed state, the stylus 50 is fixed to a stylus fixation detection device or an electronic device, and when the stylus 50 is in a detached state, the stylus 50 is detached from the electronic device, in which case the stylus 50 can perform operations such as writing.

[0025] In addition, the microswitch 21 may have a transmission mechanism and an operating lead. Specifically, when the magnet component 3 abuts against the microswitch 21, the force of the magnet component 3 acts on the operating lead through the transmission mechanism, and the fixed contact point and the dynamic contact point at the end of the microswitch 21 are immediately connected, and when the magnet component 3 separates from the microswitch 21, the force received by the transmission mechanism disappears, and the force on the operating lead also disappears, and the fixed contact point and the dynamic contact point at the end of the microswitch 21 are immediately disconnected. Here, the transmission mechanism can be a structure such as a button, a lever, a roller wheel, etc., and there is no particular limitation on the transmission mechanism here.

[0026] In some specific embodiments of the present application, at least a portion of the structure of the magnet component 3 is magnetic and an iron core is embedded in the stylus 50, thereby enabling mutual attraction between the magnet component 3 and the stylus 50 to position the stylus 50 in its deployed position.

[0027] In some other embodiments, a magnet or the like aligned with the extension direction of the stylus 50 may be built into the stylus 50 as a magnetic part, and the magnet component 3 is magnetically attracted through the magnet. Here, the type of the magnetic part is not limited.

[0028] 4a and 4b are schematic diagrams of force analysis of a stylus fixation detection device according to an embodiment of the present application, respectively;

[0029] Note that the attractive force of the stylus on the magnet component 3 is F1, the pressure of the microswitch 21 on the magnet component 3 is F2, the friction force between the magnet component 3 and the microswitch 21 is F4, and the elastic force of the elastic component 4 on the first support 3 is F3.

[0030] Specifically, in the stylus fixing detection device according to this embodiment, when the stylus 50 is placed at the placement position, that is, when the stylus 50 is approaching the magnet component 3, due to the mutual attraction between the magnet component 3 and the stylus 50, and at this time F1 + F2 > F4 + 2F3, the magnet component 3 moves in the direction away from the first support 1. Therefore, the magnet component 3 moves away from the position where it contacts the microswitch 21. When the stylus 50 is removed from the placement position, that is, when the stylus 50 moves away from the magnet component 3, due to the elastic force of the elastic component 4, and at this time, F1 + F2 < F4 + 2F3, thereby, the magnet component 3 and the first support 1 approach each other, at least a part of the magnet component 3 contacts the microswitch 21, and the microswitch 21 is triggered. During this period, the magnet component 3 realizes pressing against and separating from the microswitch 21, thereby realizing the switching between "0" and "1" of the electrical signal, and detecting the usage state of the stylus 50.

[0031] FIG. 5a is a schematic perspective view of the first support in the stylus fixing detection device according to the embodiment of the present application. FIG. 5b is a schematic perspective view of another example of the first support in the stylus fixing detection device according to the embodiment of the present application. FIG. 6 is a schematic perspective view of the second support in the stylus fixing detection device according to the embodiment of the present application.

[0032] As shown in Figures 3a to 6, in a specific embodiment of this embodiment, the first support 1 has a first support body 11 and a first protrusion 12 connected to the first support body 11, the magnet component 3 includes a second support 31, the first protrusion 12 protrudes in a direction close to the second support 31, the second support 31 has a second support body 311 and a second protrusion 312, the second protrusion 312 protrudes in a direction close to the first support 1, the first protrusion 12 is movably connected to the second protrusion 312, the elastic component 4 includes an elastic material 41, and a first end of the elastic material 41 abuts on an end of the second protrusion 312, and a second end of the elastic material 41 abuts on an end of the first protrusion 12, and under the action of the elastic force of the elastic material 41, the end of the first protrusion 12 moves in a direction close to the second support 31, and the end of the second protrusion 312 moves in a direction close to the first support 1, and the first support 1 and the second support 31 approach each other.

[0033] Specifically, when the stylus 50 is removed from its position, i.e., when the stylus 50 moves away from the magnet component 3, a portion of the structure in the second support 31 (for example, the second protrusion 312) extends toward the side of the first support 1 that faces away from the second support 31, or a portion of the structure in the first support 1 extends toward the side of the second support 31 that faces away from the first support 1. Therefore, due to the elastic force of the elastic material 41, the second protrusion 312 and the corresponding portion of the first support 1 move toward each other, and the first support 1 and the second support 31 approach each other, whereby at least a portion of the second support 31 abuts against the microswitch 21, and the state in which the stylus 50 is located at its position can be detected.

[0034] In order to process and manufacture the stylus fixation detection device according to this embodiment, in this embodiment, the first support 1 and the second support 31 are both plastic parts which are easy to mold.

[0035] Depending on the manner in which the first support 1 and the second support 31 are fixed to the elastic material 41, the specific structures of the first support 1 and the second support 31 vary, and the specific structure of the elastic material 41 also varies. Each will be described as an example.

[0036] In a selectable elastic material mounting mode, the first protrusion 12 includes a first through hole 121, which passes through the first protrusion 12 and communicates with the cavity 13, and the end of the second protrusion 312 extends from the first through hole 121 to the side of the first support body 11 away from the second support body 311.

[0037] In this manner, due to the presence of the first through hole 121, the second protrusion 312 of the second support 31 can extend from one side of the first support 1 to the other side, and at this time, when both ends of the elastic material 41 abut against the second protrusion 312 and the first support 1, respectively, or are connected in another manner, the first support 1 and the second support 31 can be brought closer to each other due to the elastic force of the elastic material 41 itself.

[0038] At this time, an annular gap may be formed between the second protrusion 312 and the first through hole 121, and optionally, the elastic material 41 is surrounded by the outer wall of the second protrusion 312 and is located in the gap between the inner wall of the first through hole 121 and the outer wall of the second protrusion 312 in the axial direction.

[0039] In some optional embodiments, the first support body 11 may have a hollow cavity 13 , the first through hole 121 may communicate with the cavity 13 , and the second protrusion 312 may extend into the cavity 13 .

[0040] In some embodiments, the elastic material 41 may be a compression spring. In general, a compression spring is used to push an object at the top of the compression spring from the center to the top, and to push an object at the bottom of the compression spring from the center to the bottom. In this application, the elastic material 41 pushes the magnet component 3 at the first end of the elastic material 41 to the second end of the elastic material 41, and pushes the first support 1 at the second end of the elastic material 41 to the first end of the elastic material 41, so that in this application, the stress direction of the magnet component 3 and the first support 1 is opposite to the force of the object at both ends of the compression spring in the general case.

[0041] As a result, in the specific embodiment of this embodiment, a limiting structure needs to be installed on the magnet component 3 or the first support 1 to complete the switching of the stress direction of the magnet component 3 and the first support 1.

[0042] FIG. 7 is a perspective schematic diagram of a stopper in a stylus fixation detection device according to an embodiment of the present application.

[0043] As shown in Figures 2a, 3a, 4a, 5a to 7, in order to complete the switching of the stress direction of the magnet component 3 and the first support 1, in a specific embodiment of this embodiment, the elastic component 4 further includes a stopper 42, which is disposed at the end of the second protrusion 312, and which includes a stopper body 421, a first engaging portion 422 and a first stopper 423, the first engaging portion 422 is disposed at the end of the stopper body 421 facing the second support 31, the first stopper 423 is disposed at the end of the stopper body 421 facing away from the second support 31, and a first end of the first engaging portion 422 is connected to the stopper body 421, and the first engaging portion 422 is connected to the stopper body 421. The second end of the portion 422 extends toward the microswitch 21, the second protrusion 312 has a through hole 3121 communicating with the end of the second protrusion 312, and a step surface 31211 is provided on the inner wall of the through hole 3121, the first engagement portion 422 extends into the through hole 3121, and the second end of the first engagement portion 422 abuts against the step surface 31211. By engaging the second protrusion 312 with the stopper 42, the force generated on the magnet component 3 by the elastic material 41 can promote the magnet component 3 to move to one side of the first support 1, so that at least a portion of the magnet component 3 can abut against the microswitch 21.

[0044] In order to improve the installation speed between the stopper 42 and the second support 31, in the embodiment of the present application, the stopper 42 may be a plastic member capable of generating a large amount of deformation, thus realizing not only a quick connection between the stopper 42 and the second branch 31, but also a reliable connection between the stopper 42 and the second support 31.

[0045] In some optional embodiments, the stopper body 421 is a columnar body, for example a rectangular columnar body or a cylindrical body, the first engagement portion 422 may be an annular plate-like part or include a plurality of inclined plates 4221 arranged at intervals, and the first retaining portion 423 may be a plate-like part.

[0046] In a specific embodiment of this embodiment, the stopper body 421 is a rectangular prism, and the stopper body 421 has a plurality of first engagement portions 422 distributed in its axial direction, and the first engagement portions 422 include a plurality of inclined plates 4221 arranged at intervals, and the inclined plates are connected to the side wall surfaces corresponding to the stopper body 421, and a gap 4222 is formed between adjacent inclined plates 4221, and of the two adjacent first engagement portions 422 in the axial direction of the stopper body 421, one inclined plate 4221 and the other gap 4222 are installed opposite each other, and the first engagement portion 422 closer to the first stop portion 423 abuts against the step surface 31211, and the two end faces of the first stop portion 423 both protrude in a direction away from the stopper body 421.

[0047] It should be noted that the stopper body 421, the first engagement portion 422 and the first retaining portion 423 may have structures of other shapes, and the specific shape of the stopper 42 in other embodiments is not limited here.

[0048] In order to ensure that at least a part of the magnet component 3 can effectively press and release the microswitch 21 and realize switching between electrical signals "0" and "1", in a specific embodiment of this embodiment, the trigger portion 314 is located on the second support 31, the trigger portion 314 is located between the two second protrusions 312, the first support is provided with a guide hole 14, the guide hole 14 is located between the two first protrusions 12, and the guide hole 14 is connected to the first through hole 121, and the end of the trigger portion 314 can pass through the guide hole 14 and abut against the microswitch 21.

[0049] As an optional embodiment, the guide hole 15 is a square hole, the trigger portion 314 is a truncated cone structure, and the radial size of the trigger portion 314 from the base to the end is gradually reduced.

[0050] In order to limit the axial position of the elastic material 41, the length of the first stopper 423 in the radial direction of the second projection 312 is greater than the diameter of the second projection 312, a first end of the elastic material 41 abuts against the side of the first stopper 423 facing the first engagement portion 422, an end of the first projection 12 has a second stopper 122 protruding inward, and a second end of the elastic material 41 abuts against the second stopper 122. This limits the axial position of the elastic material 41, improving the stability of the elastic material 41.

[0051] Furthermore, in order to limit the radial position of the elastic material 41, as an optional embodiment, the radial edge of the first stop portion 423 protrudes in a direction away from the microswitch 21, and the first end of the elastic material 41 abuts within the area surrounded by the radial edge of the first stop portion 423. This further improves the stability of the elastic material 41 and can prevent the elastic material 41 from floating on its axis.

[0052] In order to further limit the position of the elastic material 41, in this embodiment, the through hole 3121 and the first through hole 121 are both round holes, and the through hole 3121 and the first through hole 121 are arranged concentrically, so that the elastic material 41 can be more effectively restricted.

[0053] Fig. 8a is a schematic perspective view of another example of a first support in a stylus fixation detection device according to an embodiment of the present application. Fig. 8b is a schematic plan view of another example of a first support in a stylus fixation detection device according to an embodiment of the present application. Fig. 9a is a schematic view of a connection relationship between a second support and an elastic material in another example of a stylus fixation detection device according to an embodiment of the present application. Fig. 9b is a schematic perspective view of another example of a second support in a stylus fixation detection device according to an embodiment of the present application.

[0054] As shown in Figures 2b, 3b, 4b, 8a to 9b, in another possible mounting manner of the elastic material 41, the second protrusion 312 may be provided with a hole or cavity structure, and the first protrusion 12 may extend into the cavity structure of the second protrusion 312. Specifically, the second protrusion 312 is provided with a second through hole 3122, which penetrates the end of the second protrusion 312 facing the first support body 11, the first protrusion 12 extends into the second through hole 3122, and a step portion 3123 is provided in the second through hole 3122, and the elastic material 41 abuts between the end surface 31231 of the step portion and the end of the first protrusion 12.

[0055] At this time, the first protrusion 12 of the first support 1 can extend from one side to the other side of the second support 31, that is, a part of the structure of the second support 31, for example, the stepped portion 3123, is located between the first support body 1111 and the first protrusion 12. Correspondingly, similar to the previous mounting method of the elastic material 41, when the elastic material 41 abuts between the stepped portion 3123 and the end of the first protrusion 12, the first support 1 and the second support 31 can be brought closer to each other by the elastic force of the elastic material 41 itself.

[0056] In order for the first protrusion 12 to freely pass through the second through hole 3122 and maintain a stable connection with the elastic material 41, optionally, the first protrusion 12 includes at least two elastic support columns 12a extending along the length of the first protrusion 12, a gap is provided between the at least two elastic support columns 12a, and the end of the elastic support column 12a has an abutment flange 123, and the elastic material 41 abuts between the end face 31231 of the step portion and the abutment flange 123.

[0057] In this way, when the elastic support column 12a passes through the second through hole 3122, it is pushed inward by the pressure of the hole wall of the second through hole 3122 or the inner edge of the elastic material 41, so that it passes smoothly through the second through hole 3122, and after passing through the second through hole 3122, the elastic support column 12a expands outward, so that the abutment flange 123 securely abuts against the end of the elastic material 41.

[0058] In some specific embodiments, the outer contour of the cross-sectional graph of the elastic support column 12a along its radial direction is a semi-elliptical outer perimeter contour or a semi-circular outer perimeter contour, without specifically limiting the cross-sectional graph shape of the elastic support column 12a along its radial direction.

[0059] As an optional structure, a chamfer 1231 is provided on the side of the abutment flange 123 facing away from the first support body 11, and an abutment end surface 1232 is provided on the side of the abutment flange 123 facing the first support body 11. The guide role of the chamfer 1231 can prevent the elastic support column 12a from abutting against a structure such as the elastic material 41 and being unable to move forward when passing through the second through hole, and at the same time, the abutment end surface 1232 of the abutment flange 123 also reliably fixes the elastic material 41 and makes it easy to apply an elastic force to the elastic material 41. Here, the direction of the abutment end surface 1232 can be maintained perpendicular to the length direction of the elastic support column 12a.

[0060] In order to move the elastic support column 12a along the preset direction, optionally, the elastic support column 12a is provided with a sliding part 124, the radial size of the sliding part 124 matches the inner edge size of the step part 3123, and the length of the sliding part 124 in the axial direction of the first protrusion 12 is greater than the sum of the thickness of the step part 3123 and the moving stroke of the second support 31 in the same direction. In this way, the sliding part 124 can mutually match the shape of the second through hole 3122, and maintain the position of the elastic support column 12a in the second through hole 3122. At the same time, the sliding part 124 has a long axial length of the first protrusion 12, which can avoid structural interference and collision when the first support 1 and the second support 31 move relatively, thereby effectively maintaining smooth movement.

[0061] Correspondingly, in an optional embodiment, a positioning block 315 may be installed on the second support 31, and the shape of the positioning block 315 may match the gaps between the multiple elastic support columns 12a, thereby matching with the second through holes 3122 to further position the elastic support columns 12a.

[0062] In this embodiment, the number of elastic support columns 12a may be two, and the two elastic support columns 12a are installed symmetrically. In this way, the two elastic support columns 12a can approach each other when pressed by an external force, which makes it easier to pass through the second through hole 3122 and makes the force of the elastic support columns 12a more uniform. It is to be noted that the number of elastic support columns 12a may be other numbers, such as three, and the multiple elastic support columns 12a are maintained centrally or axially symmetrically with respect to the axial direction of the second through hole 3122 to make the force uniform.

[0063] A step 3123 is provided at the opening portion of the second through hole 3122, and the size of the inner edge of the step 3123 is smaller than the size of the elastic material 41 in that direction in order to ensure the abutment and fixing effect on the elastic material 41. At this time, in order to facilitate the mounting of the elastic material 41, optionally, a mounting groove 3123 is provided on the second protrusion 312, and the mounting groove 3123 communicates with the second through hole 3122, so that the elastic material 41 can enter and exit the second through hole 3122 through the mounting groove 3123. Specifically, the mounting groove 3123 is provided on a side wall of the second protrusion 312.

[0064] In order to ensure the stability of the magnetic component 3 during movement, in this embodiment, there are two elastic components 4, and the distribution direction of the two elastic components 4 coincides with the extension direction of the stylus 50, and there are two second protrusions 312, and the second protrusions 312 are installed corresponding to the elastic components 4. Specifically, the two elastic components 4 and the two second protrusions 312 are respectively axially symmetrical with respect to the center line of the second support 31.

[0065] In order to facilitate connection between the stylus fixing detection device and the electronic device, optionally, a hanging portion 16 and an engagement portion 17 are respectively installed on opposite sides of the first support body 11, the engagement portion 17 is used to engage with the case of the electronic device, the hanging portion 16 is used to abut against the edge of the case of the electronic device opposite the engagement portion 17, and at least a part of the structure of the hanging portion 16 is exposed to the outside of the case of the electronic device.

[0066] In some optional embodiments, the hanging portion 16 protrudes from the first support body 11, the extension direction of the hanging portion 16 coincides with the longitudinal direction of the first support body 11, and the hanging portion 16 is provided with a fixing hole 161, and the hanging portion 16 is detachably connected to the electronic device case through a screw fastener drilled into the fixing hole 161; it should be noted that the hanging portion 16 and the electronic device case may be connected in other manners, and the connecting manner of the hanging portion 16 and the electronic device case is not limited here.

[0067] Further, in several embodiments, the engagement portion 17 includes an extension arm 171 and an engagement arm 172, the extension arm 171 includes a first extension portion 1711 and a second extension portion 1712 connected in sequence, a first end of the first extension portion 1711 is connected to the first support body 11, a second end of the first extension portion 1711 extends in the opposite direction away from the first support body 11, and the extension direction of the first extension portion 1711 coincides with the height direction of the first support body 11, a first end of the second extension portion 1712 is connected to the second end of the first extension portion 1711, and the second end of the second extension portion 1712 extends laterally of the first support body 11 along its length direction, thereby forming a first extension portion 1711 and a second extension portion 1712. 1712, the engagement arm 172 includes a first engagement arm 1721 and a second engagement arm 1722, the first engagement arm 1721 and the second engagement arm 1722 are both connected to the second extension portion 1712, the first engagement arm 1721 and the second engagement arm 1722 are distributed parallel to each other in the height direction of the first support body 11, and the extension directions of the first engagement arm 1721 and the second engagement arm 1722 are both consistent with the length direction of the first support body 11, and an engagement groove 1723 is formed between the first engagement arm 1721 and the second engagement arm 1722, and the case of the electronic device can extend into the engagement groove 1723 to engage with the engagement portion 17.

[0068] To realize the magnetic attraction between the magnet component 3 and the stylus 50, in this embodiment, the magnet component 3 further includes an adsorbent 32 that can be magnetically attracted to the stylus 50. Optionally, the adsorbent 32 may be a magnet or an iron core, and when the adsorbent 32 is a magnet, the stylus 50 may have an iron core or a magnet built in, and when the adsorbent 32 is an iron core, the stylus 50 may have a magnet built in.

[0069] However, in actual production, one stylus fixing detection device is implemented in one display device, but one display device may be equipped with multiple styli 50, that is, the actual number of styli 50 may be much greater than the number of stylus fixing detection devices, and taking into account the high cost of magnets, in a specific embodiment of this embodiment, the adsorbent 32 is a magnet, and the stylus 50 has an iron core built in.

[0070] As shown in Figures 2a to 9b, in some embodiments, in order to mount the adsorbent 32 on the second support 31, a mounting cavity 313 is provided on the side of the second support 31 away from the microswitch 21, the mounting cavity 313 has a cavity top wall 3131 facing the microswitch 21 and a cavity bottom wall 3132 facing away from the microswitch 21, the longitudinal direction of the mounting cavity 313 is mutually perpendicular to the movement direction of the magnet component 3, an opening 3133 is provided in the cavity side wall along the longitudinal direction of the mounting cavity 313, and the adsorbent 32 is mounted in the mounting cavity 313 through the opening 3133.

[0071] In this way, the adsorbent 32 can be mounted on the second support 31, and the adsorbent 32 can be mounted in the mounting cavity 313 in the width direction of the second support 31. In this way, during the manufacture of the support 31, it is ensured that the opening direction of the cavity coincides with the mounting direction of the adsorbent 32, thereby avoiding opening the cavity along the length direction of the second support 31, and further avoiding the difficulty of extrusion molding the second support 31 due to a large cavity depth.

[0072] In order to achieve a reliable connection between the adsorbent 32 and the second support 31, in this embodiment, a second engagement portion 31321 is provided on the cavity bottom wall 3132 of the mounting cavity 313, and the second engagement portion 31321 is used to confine the adsorbent 32 within the mounting cavity 313.

[0073] In addition, compared with the cavity opening along the thickness direction of the second support 31, when the outer wall surface of the cavity bottom wall 3132 is the main stress surface, the opening direction of the mounting cavity 313 can prevent the adsorbent 32 from escaping, thereby improving the overall reliability of the magnet component 3; and when the cavity is opened along the thickness direction of the second support 31, in consideration of the convenience of mounting, the thickness of the second engagement portion 31321 is increased, thus increasing the distance between the adsorbent 32 and the iron core built in the stylus 50, which further affects the magnitude of the adsorption force generated by the adsorbent 32 on the stylus 50, and thereby affecting the feel when the stylus 50 is removed for writing.

[0074] In a specific embodiment of this embodiment, in order for the microswitch 21 to realize switching of electrical signals between "0" and "1", in this embodiment, the switch component 2 further includes a circuit board 22, the circuit board 22 is mounted on the first support 1, the microswitch 21 is connected to the circuit board 22, and the microswitch 21 is electrically connected to the circuit board 22.

[0075] In order to facilitate mounting the circuit board 22 on the first support, the stylus fixation detection device according to this embodiment further includes a plurality of positioning ribs 5, which are installed in the cavity 13 and distributed on both sides of the circuit board 22 in the length direction of the first support 1, and the ends of the positioning ribs 5 extend in a direction away from the second support 31. This can act as a guide for mounting the circuit board 22, thereby realizing quick mounting between the circuit board 22 and the first support 1.

[0076] In order to further realize a rapid mounting between the circuit board 22 and the first support 1, a guide slope 51 is provided on the side of the positioning rib 5 facing the circuit board 22, and the guide slope 51 extends from the base of the positioning rib 5 to the end of the positioning rib 5. In this way, it further plays a guiding role for the mounting of the circuit board 22, and further realizes a rapid mounting between the circuit board 22 and the first support 1.

[0077] In order to reliably mount the circuit board 22 on the first support 1, as an optional embodiment, two third engagement portions 14 are provided on the side of the first support 1 facing away from the second support 31, i.e., two third engagement portions 14 are provided on the side of the cavity 13 facing away from the second support 31, the distribution direction of the two third engagement portions 14 coincides with the extension direction of the cavity bottom of the mounting cavity 313, and the two third engagement portions 14 are used to confine the circuit board 22 within the first support 1.

[0078] In order to facilitate the extrusion molding of the first support 1, in this embodiment, the third engagement portion 14 is located in the middle of the first support 1, and the touch direction during molding of the first support 1 is along its height. Therefore, by placing the third engagement portion 14 in the middle of the first support 1, it is possible to ensure that the hole position of the third engagement portion 14 overlaps with the hole position of the microswitch 21 during touch. Compared with other installation positions of the third engagement portion 14, the installation position of the third engagement portion 14 in this embodiment not only ensures that the release direction of the first support 1 is single, but also avoids processing additional hole positions in the first support 1, thereby ensuring the integrity of the first support 1 and further improving the reliability of the first support 1. In addition, the mold for manufacturing the first support 1 can be made simpler, thereby saving manufacturing costs.

[0079] The stylus fixation detection device according to this embodiment is often placed flat during use, i.e., the orientation of the opening 3133 is straight upward. In order to prevent changes in the attraction force of the adsorbent 32 to the stylus 50 caused by changes in the outer shapes of the first support 1 and the second support 31 due to the influence of gravity, the stylus fixation detection device according to this embodiment further includes a plurality of reinforcing ribs 6, which include a first reinforcing rib 6a, a second reinforcing rib 6b and a third reinforcing rib 6c. The strong rib 6a is mounted on the first support 1, the second reinforcing rib 6b and the third reinforcing rib 6c are both mounted on the second support 31, the ends of the second reinforcing rib 6b and the third reinforcing rib 6c both extend to the first support 1, the second protrusion 312 is between the second reinforcing rib 6b and the third reinforcing rib 6c, and the third reinforcing rib 6c is on the side of the second protrusion 312 close to the center of the second support 31, and the end of the first reinforcing rib 6a extends to the second support 31, and the first reinforcing rib 6a is on the side of the second reinforcing rib 6b away from the second protrusion 312. In this way, the strength of the first support 1 and the second support 31 can be improved, and it is ensured that the adsorbent 32 generates an effective suction force on the stylus 50.

[0080] The stylus fixation detection device provided by the present application includes a first support, a switch component, a magnet component and an elastic component, the switch component is installed on the first support, the side of the magnet component facing the first support is used to attract the stylus, the switch component includes a micro switch, the micro switch includes a trigger button, the trigger button is installed facing the magnet component, the magnet component includes a trigger part, the magnet component is movably connected to the first support, the elastic component is installed at the movable connection part of the magnet component and the first support, when the fixed detection device detects the stylus, the magnet component is separated from the first support by the action of the attraction force of the stylus, the trigger part does not contact the trigger button, when the fixed detection device does not detect the stylus, the elastic component makes the magnet component stick to the first support, and the trigger part contacts the trigger button. The stylus fixation detection device provided by the present application is convenient to produce and can effectively detect the state of the stylus.

[0081] Fig. 10 is a structural schematic diagram of an intelligent interactive tablet according to an embodiment of the present application. Fig. 11a is a partial structural schematic diagram of an intelligent interactive tablet according to an embodiment of the present application. Fig. 11b is a partially enlarged structural schematic diagram of A in Fig. 11a. Fig. 12a is a cross-sectional view taken along line BB in Fig. 11a. Fig. 12b is a cross-sectional view of another example taken along line BB in Fig. 11a. Fig. 13a is a partially enlarged structural schematic diagram showing part C in Fig. 12a. Fig. 13b is a partially enlarged structural schematic diagram showing part D in Fig. 12b.

[0082] 10 to 13b, an embodiment of the present application further provides an intelligent interactive tablet, which includes a picture frame 10, a stylus 50 and the above-mentioned stylus fixation detection device, the stylus fixation detection device is installed inside the picture frame 10, the first support 1 of the stylus fixation detection device is fixedly connected to the picture frame 10, a mounting part 60 is formed on at least a part of the picture frame 10, and the stylus 50 is disposed in the mounting part 60. Here, the specific structure, function, operation principle, etc. of the stylus fixation detection device have been described in detail in the above-mentioned embodiments, so they will not be further described here.

[0083] Specifically, in this embodiment, the mounting portion 60 is in the form of a groove recessed toward the magnet component 3 .

[0084] It should be noted that the electronic device according to this embodiment may further include components or units for operating other electronic devices normally, which are not described here.

[0085] The present application provides an intelligent interactive tablet, comprising a frame, a stylus and the stylus fixation detection device according to the above embodiment, the stylus fixation detection device is installed inside the frame, a first support of the stylus fixation detection device is fixedly connected to the frame, at least a part of the frame is formed with a mounting part, and the stylus is disposed in the mounting part, wherein the stylus fixation detection device includes a second support, a switch component, a magnet component and an elastic component, the switch component is installed on the first support, and a side of the magnet component facing away from the first support is used to attract the stylus, and the switch component is fixed to the first support. The component includes a microswitch, the microswitch includes a trigger button, the trigger button is installed facing the magnet component, the magnet component includes a trigger part, the magnet component is movably connected to the first support, the elastic component is installed at a movable connection point between the magnet component and the first support, when the fixed detection device detects the stylus, the magnet component is separated from the first support by the action of the attraction force of the stylus, and the trigger part does not contact the trigger button, when the fixed detection device does not detect the stylus, the elastic component puts the magnet component in a state of being stuck to the first support, and the trigger part contacts the trigger button. The stylus fixed detection device according to the embodiment of the present application can stably and effectively detect the state of the stylus. [Explanation of symbols]

[0086] 1 First support 2 Switch Components 3 Magnet Components 4 Elastic Components 5 Positioning rib 6 Reinforcing ribs 10. Picture Frame 20 Support 30 Hall Sensor 40 Magnet 50 Stylus 60 Mounting section 11 First support body 12 1st protrusion 13 Cavity 14 Third engagement portion 15 Guide hole 16 Hanging part 17 Engagement part 21 Microswitch 22 Circuit Board 31 Second support 32 Adsorbents 41 Elastic material 42 Stopper 51 Guide slope 6a First reinforcing rib 6b Second reinforcing rib 6c Third reinforcing rib 101 Stylus positioning groove 121 First through hole 122 Second stopper 12a Elastic support column 123 Abutting flange 124 Sliding part 161 Fixed hole 171 Extension Arm 1711 1st extension part 1712 2nd extension part 172 Engagement arm 1721 First engagement arm 1722 Second engagement arm 1723 Engagement groove 311 Second support body 312 2nd protrusion 313 Mounting Cavity 314 Trigger section 315 Positioning Block 421 Stopper body 422 First engagement part 423 First stop 1231 Chamfer 3121 Through hole 3122 Second through hole 3131 Cavity top wall 3132 Cavity bottom wall 3133 Aperture 4221 Inclined plate 4222 Interval 31211 Step surface 31231 End face of step 31321 Second engagement part

Claims

1. A stylus fixation detection device, comprising a first support, a switch component, a magnet component and an elastic component, the switch component being mounted on the first support, and a side of the magnet component facing away from the first support being used to attract the stylus; the switch component includes a microswitch, the microswitch includes a trigger button, the trigger button of the microswitch is disposed facing the magnet component, the magnet component includes a trigger portion, the magnet component is movably connected to the first support, and the elastic component is disposed at a movable connection point between the magnet component and the first support; When the fixed detection device detects the stylus, the magnet component is separated from the first support by the action of the attraction force of the stylus, and the trigger portion does not contact the trigger button; A stylus fixation detection device, wherein when the fixation detection device does not detect the stylus, the elastic component causes the magnet component to be stuck to the first support, and the trigger portion contacts the trigger button.

2. the first support has a first support body and a first protrusion connected to the first support body, the magnet component includes a second support, the first protrusion protruding in a direction proximate to the second support; The second support has a second support body and a second protrusion, the second protrusion protrudes in a direction close to the first support, and the first protrusion is movably connected to the second protrusion; 2. The stylus fixation detection device of claim 1, wherein the elastic component includes an elastic material, a first end of the elastic material abuts against an end of the second protrusion, a second end of the elastic material abuts against an end of the first protrusion, and under the action of the elastic force of the elastic material, the end of the first protrusion moves in a direction closer to the second support, and the end of the second protrusion moves in a direction closer to the first support, and the first support and the second support approach each other.

3. A first through hole is provided in the first protrusion, and the first through hole penetrates the first protrusion; 3. The stylus fixation detection device according to claim 2, wherein an end of the second projection passes through the first through hole and extends on a side of the first support body opposite to the second support body.

4. A stylus fixation detection device as described in claim 3, wherein the elastic material is surrounded by the outer wall of the second protrusion, a gap is provided between the inner wall of the first through hole and the outer wall of the second protrusion, and the elastic material is restricted to the gap between the inner wall of the first through hole and the outer wall of the second protrusion in the radial direction of the axis of the second protrusion.

5. The elastic component further includes a stopper, the stopper is disposed at an end of the second protrusion, and the stopper includes a stopper body, a first engagement portion and a first stop portion; the first engagement portion is disposed at an end of the stopper body facing the second support, the first stop portion is disposed at an end of the stopper body facing away from the second support, and a first end of the first engagement portion is connected to the stopper body, a second end of the first engagement portion extends toward the microswitch, the second protrusion is provided with a through hole communicating with an end of the second protrusion, an inner wall of the through hole is provided with a stepped surface, the first engagement portion extends into the through hole, and the second end of the first engagement portion abuts against the stepped surface, The stylus fixation detection device of claim 3, wherein the length of the first stop portion in the radial direction of the second projection is greater than the diameter of the second projection, and the first end of the elastic material abuts on the side of the first stop portion toward the first engagement portion.

6. 6. The stylus fixation detection device according to claim 5, wherein an end of the first projection has a second stop portion protruding inward, and the second end of the elastic material abuts against the second stop portion.

7. The stylus fixation detection device of claim 5, wherein a radial edge of the first stop portion protrudes in a direction away from the microswitch, and a first end of the elastic material abuts within an area surrounded by the radial edge of the first stop portion.

8. The second protrusion has a second through hole, the second through hole penetrates an end of the second protrusion facing the first support body, and the first protrusion extends into the second through hole; The stylus fixation detection device according to claim 2 , wherein a step portion is provided within the second through hole, and the elastic member abuts between an end face of the step portion and the end of the first projection.

9. The stylus fixation detection device of claim 8, wherein the first projection includes at least two elastic support columns extending along the length of the first projection, a gap is provided between the at least two elastic support columns, and the elastic support columns have an abutment flange at their ends, and the elastic material abuts between the end face of the step portion and the abutment flange.

10. 10. A stylus fixation detection device according to claim 9, wherein the side of the abutment flange facing away from the first support body is provided with a chamfer and the side of the abutment flange facing towards the first support body is provided with an abutment end face.

11. The stylus fixation detection device of claim 9, wherein the elastic support column is provided with a sliding portion, the radial size of the sliding portion matches the inner edge size of the step portion, and the length of the sliding portion in the axial direction of the first protrusion is greater than the sum of the thickness of the step portion and the movement stroke of the second support in that direction.

12. A stylus fixation detection device described in any one of claims 8 to 11, wherein the second protrusion has a mounting groove, and the mounting groove is connected to the second through hole so that the elastic material can enter and exit the second through hole through the mounting groove.

13. A stylus fixation detection device according to any one of claims 2 to 11, wherein there are two elastic components, and the two elastic components are spaced apart along the length of the first support.

14. The stylus fixation detection device of claim 13, wherein the number of the second protrusions is two, and the second protrusions are installed corresponding to the elastic component, the trigger portion is located on the second support, the trigger portion is located between the two second protrusions, a guide hole is provided on the first support, and an end of the trigger portion can abut against the microswitch through the guide hole.

15. A stylus fixation detection device described in any one of claims 2 to 11, wherein a hanging portion and an engagement portion are respectively installed on opposite sides of the first support body, the engagement portion is used to engage with a case of an electronic device, the hanging portion is used to abut an edge of the case of the electronic device opposite the engagement portion, and at least a portion of the hanging portion is exposed to the outside of the case of the electronic device.

16. the magnet component further includes an attractant capable of being magnetically attracted to the stylus; A stylus fixation detection device as described in any one of claims 2 to 11, wherein a mounting cavity is provided on the side of the second support away from the microswitch, the mounting cavity has a cavity top wall facing the microswitch and a cavity bottom wall facing away from the microswitch, the longitudinal direction of the mounting cavity is perpendicular to the movement direction of the magnet component, an opening is provided in the cavity side wall along the longitudinal direction of the mounting cavity, and the adsorbent is mounted in the mounting cavity through the opening.

17. The stylus fixation detection device of claim 16, wherein a cavity bottom wall of the mounting cavity has a second engagement portion, the second engagement portion being used to confine the absorbing material within the mounting cavity.

18. The stylus fixation detection device of claim 17 , wherein the switch component further comprises a circuit board, the circuit board mounted to the first support, and the micro switch connected to the circuit board.

19. A stylus fixation detection device as described in claim 18, wherein the side of the first support facing away from the second support has two third engagement portions, the arrangement direction of the two third engagement portions coincides with the extension direction of the cavity bottom of the mounting cavity, and the two third engagement portions are used to fix the circuit board within the first support.

20. The stylus fixation detection device according to claim 19 , wherein the third engagement portion is located at a middle portion of the first support.

21. Further, the present invention includes a reinforcing rib including a first reinforcing rib, a second reinforcing rib, and a third reinforcing rib, the first reinforcing rib being provided on the first support, and the second reinforcing rib and the third reinforcing rib being provided on the second support, the second reinforcing rib and the third reinforcing rib each have an end extending toward the first support, the second projection is between the second reinforcing rib and the third reinforcing rib, and the third reinforcing rib is on the side of the second projection that is closer to the center of the second support; A stylus fixation detection device as described in any one of claims 2 to 11, wherein an end of the first reinforcing rib extends to the second support, and the first reinforcing rib is on the side of the second reinforcing rib that is away from the second projection.

22. 19. A stylus fixation detection device as described in claim 18, further comprising a plurality of positioning ribs, the plurality of positioning ribs being mounted on the first support, the plurality of positioning ribs being arranged on both sides of the circuit board in the longitudinal direction of the first support, and ends of the positioning ribs extending in a direction away from the second support.

23. 23. A stylus fixation detection device according to claim 22, wherein a side of the positioning rib facing the circuit board is provided with a guide ramp, the guide ramp extending from a base of the positioning rib to a distal end of the positioning rib.

24. An intelligent interactive tablet comprising a frame, a stylus, and a stylus fixation detection device as described in any one of claims 1 to 11, wherein the stylus fixation detection device is installed inside the frame, a first support of the stylus fixation detection device is fixedly connected to the frame, a mounting portion is formed in at least a portion of the frame, and the stylus is positioned in the mounting portion.

Images