Interaction tablet

Abstract

The invention relates to an interaction panel which comprises a first frame, a first light filtering strip, glass and a glass pressing block, a mounting cavity is formed in the first frame, and an opening communicated with the mounting cavity is formed in the side, close to a display area of the interaction panel, of the first frame; the first light filtering strip is arranged in the mounting cavity, a bearing part is formed at one end, close to the display area of the interaction panel, of the first light filtering strip, and the bearing part is arranged at the opening and exposed out of the mounting cavity through the opening; the glass is erected on the bearing part; one end of the glass pressing block is connected to the first frame, the other end of the glass pressing block abuts against the side, away from the bearing part, of the glass, and the side face of the glass pressing block abuts against the part, located at the opening, of the first filter strip to limit the first filter strip to break away from the mounting cavity along the opening; the first light filtering strip is clamped by the side wall, used for forming the mounting cavity, of the first frame so as to be accommodated in the mounting cavity; or the first light filtering strip is used for forming the side wall of the mounting cavity through the first frame and is clamped by the glass pressing block in a matched manner so as to be accommodated in the mounting cavity.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, for example, to an interactive tablet. Background Art

[0002] Interactive tablets integrate multiple functions of projectors, electronic whiteboards, screens, speakers, televisions, and video conferencing terminals. They are widely used in education and teaching, corporate meetings, commercial displays, and other fields. They can effectively improve the communication environment and enhance group communication efficiency.

[0003] A traditional interactive tablet generally includes a display module and a frame surrounding the outside of the display module, as well as a touch circuit board for infrared detection and a filter strip for filtering infrared light. The frame can be a rolled frame. A rolled frame generally refers to a frame formed by a rolling process using iron materials. The overall structure is roughly C-shaped, that is, an opening is formed on the side of the rolled frame. When the interactive tablet is assembled, the filter strip is built into the rolled frame through the opening, and the touch circuit board is built into the internal space of the filter strip. Then the glass in the display module is placed on the filter strip and then pressed and fixed by a corresponding glass pressing block.

[0004] However, in conventional interactive tablets with rolled frames, the filter strip is not firmly assembled, which may affect the detection accuracy of the user's touch action by the detection module on the touch circuit board, and may also cause the glass on the filter strip to jump off. Summary of the invention

[0005] Based on this, for the traditional interactive flat panel with a rolled frame, the filter strip is not assembled stably, which will affect the detection accuracy of the detection module on the touch circuit board for the user's touch action, and will also cause the glass on the filter strip to jump off. An interactive flat panel is provided, which can reduce the risk of the touch circuit board affecting the detection accuracy of the user's touch action due to the unstable assembly of the filter strip. In addition, when the filter strip is relatively stably accommodated in the installation cavity, the risk of the glass on the filter strip jumping off can also be reduced.

[0006] The technical solution is as follows:

[0007] An interactive flat panel comprises a first frame, a first filter strip, a glass and a glass block, wherein a mounting cavity is formed inside the first frame, an opening is formed on a side of the first frame close to a display area of ​​the interactive flat panel, and the opening is communicated with the mounting cavity; the first filter strip is built into the mounting cavity, a bearing portion is formed on one end of the first filter strip close to the display area, the bearing portion is arranged at the opening and exposed through the opening; the glass is mounted on the bearing portion; one end of the glass block is connected to the first frame, and the other end is pressed against a side of the glass away from the bearing portion, and a side surface of the glass block is abutted against a portion of the first filter strip located at the opening to limit the first filter strip from leaving the mounting cavity along the opening; wherein the first filter strip is clamped by the side wall of the first frame used to form the mounting cavity so as to be accommodated in the mounting cavity; or the first filter strip is clamped by the side wall of the first frame used to form the mounting cavity and the glass block so as to be accommodated in the mounting cavity.

[0008] In one embodiment, the first frame includes a front panel body, an intermediate connecting plate body and a back panel body, the front panel body is connected to the back panel body through the intermediate connecting plate body and is surrounded to form the installation cavity, the front panel body and the back panel body are relatively spaced apart and form the opening, wherein the angle formed between the front panel body and the intermediate connecting plate body is a, wherein 80°≤a≤90°.

[0009] In one embodiment, 87°≤a≤90°.

[0010] In one of the embodiments, one end of the back panel body close to the display area is bent toward the direction close to the front panel body to form a step portion, and the step portion includes a step plane portion facing the first filter strip and a step vertical portion connected to the step plane portion and arranged at an angle, the glass pressing block is connected to the step plane portion, and the step plane portion and the step vertical portion are perpendicular; or the step plane portion is offset relative to the step vertical portion in a direction close to the first filter strip and the angle formed with the step vertical portion is b, wherein 90°<b≤100°.

[0011] In one embodiment, 90°<b≤93°.

[0012] In one embodiment, the first frame is provided with an audio and video area for accommodating an audio and video module in the installation cavity, the first filter strip is formed with an avoidance notch for avoiding the audio and video module at a position corresponding to the audio and video area, and a limited position protrusion is formed on one side of the first filter strip facing the step portion;

[0013] The interactive tablet also includes a limiter, which is arranged through a portion of the step plane portion corresponding to the audio and video area, and in the height direction of the first frame, the limiter is closer to the avoidance gap than the limiter protrusion, and the orthographic projection of the limiter toward the first filter strip at least partially falls on the limiter protrusion, so that the limiter and the limiter protrusion cooperate in the upper limit position in the height direction of the first frame.

[0014] In one embodiment, the limiting protrusion extends along the length direction of the first frame, and the limiting protrusion contacts and seals with the side of the step portion facing the first filter strip.

[0015] In one embodiment, one of the glass pressing block and the step plane portion is provided with a first positioning protrusion, and the other is provided with a first positioning hole, and the glass pressing block is inserted through the first positioning protrusion and the first positioning hole to be positioned and matched with the step plane portion; and / or

[0016] The glass pressing block and the step plane portion are also fixedly matched by fasteners.

[0017] In one embodiment, the interactive flat panel further includes foam, which is connected to the outer side wall of the first filter strip, and the first filter strip is squeezed and matched with the inner side wall of the first frame located in the installation cavity through the foam to be built into the installation cavity.

[0018] In one embodiment, the number of the foams is at least two, and all the foams are arranged at intervals along the length direction of the first filter strip.

[0019] In one embodiment, the first frame is a rolled frame.

[0020] In one embodiment, the number of the first frames and the first filter strips are both three, the three first frames are respectively an upper frame and two side frames, the three first filter strips are respectively two side filter strips and an upper filter strip, the side filter strips are correspondingly accommodated in the mounting cavity of the side frames, and the upper filter strip is correspondingly accommodated in the mounting cavity of the upper frame;

[0021] The two ends of the upper frame are respectively welded to the two side frames or connected via an intermediate connecting piece to form a U-shaped frame structure.

[0022] In one of the embodiments, a receiving cavity is provided inside each of the first filter strips, and the interactive flat panel further comprises three first touch circuit boards, namely an upper circuit board and two side circuit boards, the side circuit boards are correspondingly received in the receiving cavities of the side filter strips, and the upper circuit board is correspondingly received in the receiving cavity of the upper filter strip.

[0023] In one embodiment, a limiting bracket is provided at the connecting corner of the upper frame and the side frame, and the limiting bracket includes a limiting body and a first locking body connected to each other, the limiting body is provided between the upper frame and the side frame, and the first locking body is connected to the upper frame;

[0024] The limiting body includes a first limiting surface facing the upper filter bar and a second limiting surface facing the side filter bar. In the length direction of the upper frame, the first limiting surface is limitedly matched with the end of the upper filter bar and the end of the upper circuit board. In the length direction of the side frame, the second limiting surface is limitedly matched with the end of the side circuit board.

[0025] In one of the embodiments, the upper filter bar and the side filter bar are in contact with each other, and in the length direction of the side frame, the orthographic projection of the upper filter bar at least partially falls on the side filter bar, so that in the length direction of the side frame, the upper filter bar can limit the side filter bar.

[0026] In one embodiment, one of the first locking body and the upper frame is provided with a second positioning protrusion, and the other is provided with a second positioning hole, and the first locking body and the upper frame are inserted through the second positioning protrusion and the second positioning hole for positioning cooperation; and / or

[0027] The first locking body and the upper frame are also fixedly matched by fasteners.

[0028] In one embodiment, the limiting bracket further includes a second locking body, the second locking body is connected to a side wall of the limiting body facing away from the upper frame, and the second locking body is connected to the side frame.

[0029] In one of the embodiments, a support body is further provided on a side of the limiting bracket facing the back panel of the interactive flat panel, and the support body is used to support the back panel of the interactive flat panel.

[0030] In one embodiment, the interactive tablet also includes a second frame and two connecting corners, the second frame is a bottom frame, and a connecting corner is correspondingly provided at both ends of the bottom frame and the two side frames, and the bottom frame is connected to the end of the side frame away from the upper frame through the corresponding connecting corner.

[0031] In one of the embodiments, a clamping groove is formed at one end of the connecting corner close to the side frame, and the connecting corner is clamped on the back panel side of the side frame facing the interactive flat panel through the clamping groove, and the other opposite end of the connecting corner is inserted into the internal cavity of the bottom frame.

[0032] In one embodiment, a first mounting hole and a second mounting hole are formed on a side of the bottom frame facing the back plate of the interactive flat panel, the first mounting hole and the second mounting hole are arranged at intervals along the width direction of the bottom frame, and the first mounting hole is closer to the display area than the second mounting hole;

[0033] The portion of the connecting corner that extends into the internal cavity of the bottom frame is formed with a mounting surface, the mounting surface is provided with a third mounting hole and a mounting boss that protrudes relative to the third mounting hole in a direction away from the mounting surface, the mounting boss corresponds to the first mounting hole and is configured to be connected by a fastener; the third mounting hole corresponds to the second mounting hole and is configured to be connected by a fastener.

[0034] In one embodiment, one end of the side frame close to the bottom frame is bent to form a bending portion, and the bending portion is spliced ​​with the bottom frame. A reinforcement body is provided on the side of the bending portion facing the bottom frame, and the reinforcement body extends into the internal cavity of the bottom frame and is connected to the bottom frame.

[0035] In the above interactive flat panel, the first filter strip is built into the installation cavity through the opening, and the glass pressing block is arranged on the bearing part, and the glass is pressed by the glass pressing block, so that the glass is fixed on the filter strip. Since the side of the glass pressing block abuts against the part of the first filter strip located at the opening, the first filter strip can be restricted from being separated from the first filter strip along the opening. In one embodiment, in order to improve the stability of the filter strip clamping, the first frame is used to form the side wall of the installation cavity to form a clamping structure for clamping the first filter strip, so that the first filter strip can be accommodated in the installation cavity; or, the glass pressing block and the first frame are used to form the side wall of the installation cavity to form a clamping structure to clamp the first filter strip, thereby improving the stability of the first filter strip installed in the installation cavity, thereby reducing the risk of affecting the accuracy of the touch circuit board to detect the user's touch action due to the unstable assembly of the filter strip. In addition, when the filter strip is relatively stably accommodated in the installation cavity, the risk of the glass on the filter strip jumping off can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of the interactive tablet;

[0037] Figure 2 This is a schematic diagram of the interactive tablet;

[0038] Figure 3 It is a schematic diagram of the state where the glass is erected on the bearing part;

[0039] Figure 4 It is a cross-sectional view of the interactive flat panel;

[0040] Figure 5 is a schematic cross-sectional view of a first frame in an embodiment;

[0041] Figure 6 is a cross-sectional schematic diagram of a first frame in another embodiment;

[0042] Figure 7 is a schematic cross-sectional view of a first frame in an embodiment;

[0043] Figure 8 is a cross-sectional schematic diagram of a first frame in another embodiment;

[0044] Fig. 9 A schematic diagram of the structure of a glass pressing block from one viewing angle;

[0045] Fig.10 A schematic diagram of the structure of the glass block from another perspective;

[0046] Fig.11 Assembling diagram of first frame and first filter strip;

[0047] Fig.12 for Fig.11 The enlarged schematic diagram of the M in the middle;

[0048] Fig.13 is a schematic structural diagram of a first filter strip in an embodiment;

[0049] Fig.14 for Fig.13 A magnified schematic diagram of S in the middle;

[0050] Fig.15 It is a schematic diagram of the structure after the three first frames are assembled;

[0051] Fig.16 This is a schematic diagram of the frame structure of the interactive tablet;

[0052] Fig.17 A schematic diagram of assembling the side frame and the bottom frame by connecting the corners;

[0053] Fig.18 Schematic diagram of the structure connecting the corners;

[0054] Fig.19 A cross-sectional view of the first frame and the first filter strip after assembly;

[0055] Fig. 20 for Fig.15 A magnified schematic diagram of N in the figure;

[0056] Fig.21 It is a structural entity diagram of the limiting bracket from the front view;

[0057] Fig. 22 is a schematic diagram of the limiting bracket from the rear perspective;

[0058] Fig.23 A partially enlarged schematic diagram of an interactive tablet in an embodiment;

[0059] Fig.24 Fig.12 for Fig.11 The enlarged schematic diagram of R in the middle;

[0060] Fig.25 This is a cross-sectional view from another perspective of the interactive tablet;

[0061] Fig.26 for Fig.16 A magnified schematic diagram of P in the middle;

[0062] Fig. 27 Provide a schematic diagram for assembling the side and bottom frames;

[0063] Fig.28 It is a schematic diagram of the peripheral frame of the interactive tablet;

[0064] Fig.29 for Fig.28 Enlarged schematic diagram of O in the middle;

[0065] Fig.30 for Figure 1 Enlarged schematic diagram of T in the middle.

[0066] Reference numerals:

[0067] 10. Interactive tablet; 110. First frame; 110a. Upper frame; 110b. Side frame; 1102. Mounting cavity; 1104. Opening; 1106. Audio and video area; 112. Front panel; 114. Intermediate connecting plate; 116. Back panel; 1162. Step portion; 11622. Step plane portion; 11624. Step vertical portion; 11626. First positioning hole; 11628. Second positioning hole; 118. Bend portion; 1182. Reinforcement body; 120. Second frame; 120a. Bottom frame; 126. First mounting hole; 128. Second mounting hole; 210. First filter strip; 210a. Upper filter strip; 210b. Side filter strip; 212. Bearing portion; 214. Position limiting protrusion; 216. Avoidance gap; 218. Accommodating cavity ; 220, second filter strip; 300, glass; 400, glass block; 410, first positioning protrusion; 500, foam; 600, limiting bracket; 610, limiting body; 612, first limiting surface; 614, second limiting surface; 620, first locking body; 622, second positioning protrusion; 630, second locking body; 640, supporting body; 700, first touch circuit board; 700a, upper circuit board; 700b, side circuit board; 800, second touch circuit board; 900, connecting corner; 910, clamping groove; 920, mounting surface; 922, third mounting hole; 924, mounting boss; 926, third limiting surface; 928, fourth limiting surface; 1000, audio and video module; 2000, back panel; 3000, limiting piece; 4000, screw assembly hole. DETAILED DESCRIPTION

[0068] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0071] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0074] Interactive tablets integrate multiple functions of projectors, electronic whiteboards, screens, speakers, televisions, and video conferencing terminals. They are widely used in education and teaching, corporate meetings, commercial displays, and other fields. They can effectively improve the communication environment and enhance group communication efficiency.

[0075] The structure of an interactive tablet generally includes a display module and a frame surrounding the display module. A touch detection component is installed inside the frame. The touch detection component includes a touch circuit board and an infrared transmitter / infrared receiver disposed on the touch circuit board. An infrared transmitter is disposed on the touch circuit board in one of the two opposite frames of the interactive tablet, and an infrared receiver is disposed on the touch circuit board in the other frame. The infrared transmitter and the infrared receiver form an infrared detection network on the interactive tablet, which can convert the user's touch action into the coordinate position of the touch control to achieve the response of the operation. In order to filter the light of the infrared transmitter and the infrared receiver, the interactive tablet is also provided with a filter strip on the frame to remove other stray light.

[0076] Most of the frames in traditional interactive flat panels are made of aluminum alloy, which is expensive. In order to reduce the cost of frames, rolled frames are used instead of traditional aluminum alloy profile frames. Rolled frames generally refer to frames formed by iron materials through a rolling process. An opening is formed on the side of the rolled frame. When the interactive flat panel is assembled, the filter strip is built into the rolled frame through the opening, and the touch circuit board is built into the internal space of the filter strip. Then the glass in the display module is placed on the filter strip and fixed by pressing with the corresponding glass pressing block.

[0077] Since a touch circuit board is installed inside the filter strip, the glass is also directly placed on the filter strip. After research and analysis, the inventor found that when the filter strip is not assembled stably, it will affect the detection accuracy of the detection module on the touch circuit board for the user's touch action. In addition, when the filter strip is not assembled stably, the glass on the filter strip will also be at risk of jumping off. Since the side of the rolled frame generally has a large opening, due to the special structural characteristics of the rolled frame, when assembling the filter strip, it is necessary to consider the above-mentioned problems caused by the unstable assembly of the filter strip.

[0078] In order to solve the above problems, some interactive flat panels usually apply glue on the surface of the filter strip when assembling the filter strip, and the filter strip is fixed inside the rolled frame by glue. However, in actual use, the glue may fall off or the bonding may be unstable and unreliable. The unstable assembly of the filter strip will also affect the detection accuracy of the user's touch action by the detection module on the touch circuit board, and may also cause the glass on the filter strip to jump off. If the amount of glue is increased in order to increase the stability of the adhesion of the filter strip, there is a risk of overflowing glue and contaminating other components such as glass. In addition, the use of glue to fix the filter strip is inconvenient to disassemble and assemble when it needs to be replaced, and the filter strip is easily damaged during disassembly.

[0079] In addition, in addition to using glue to fix the filter strip, some interactive flat panels will set a pressing screw on the top of the frame or the top of the glass block when assembling the filter strip. The screw passes through the frame or the glass block from above and extends into the inside of the rolled frame to press the filter strip, and then the filter strip is limited by the glass block on the side to achieve the assembly of the filter strip. However, although this assembly method can fix the filter strip inside the rolled frame, if the pressing screw is too long during assembly, it will interfere with the filter strip, and the top of the filter strip will be deformed during assembly, or even the touch circuit board will be damaged. Therefore, this assembly is difficult and there is a risk of damaging the filter strip and the touch circuit board inside it. If the pressing screw is too short, it will not be able to press the filter strip. At this time, the filter strip will still be loose. Similarly, because the filter strip is not assembled firmly, the detection module on the touch circuit board will be affected. The detection accuracy of the user's touch action is affected, and the glass on the filter strip will also be caused to jump off.

[0080] Based on this, please refer to Figures 1 to 3 After a series of studies, the inventors proposed an interactive tablet 10. The interactive tablet 10 includes a first filter strip 210 built into a mounting cavity 1102 formed inside a first frame 110. The first filter strip 210 is provided with a bearing portion 212 for bearing a glass 300. The glass 300 is placed on the bearing portion 212. The glass 300 is pressed by a glass pressing block 400. The glass pressing block 400 presses and limits the first filter strip 210 at the side to prevent the first filter strip 210 from being separated from the opening 1104. The first filter strip 210 is clamped by the side wall of the first frame 110 used to form the mounting cavity 1102 to be accommodated in the mounting cavity 1102; or the first filter strip 210 is clamped by the side wall of the first frame 110 used to form the mounting cavity 1102 and the glass pressing block 400 to be accommodated in the mounting cavity 1102. In this way, the first filter strip 210 can be relatively stably accommodated in the mounting cavity 1102 by the clamping action of the side wall of the first frame 110 used to form the mounting cavity 1102, or by the side wall of the first frame 110 used to form the mounting cavity 1102 and the glass pressing block 400, thereby reducing the risk of affecting the accuracy of the touch circuit board's detection of the user's touch action due to the unstable assembly of the first filter strip 210. In addition, when the first filter strip 210 is relatively stably accommodated in the mounting cavity 1102, the risk of the glass 300 on the first filter strip 210 jumping off can also be reduced.

[0081] It should be noted that the interactive tablet 10 involved in the present application can be an electronic device with functions such as writing, annotation, painting, multimedia entertainment and online conferencing. The interactive tablet 10 can integrate multiple technologies such as human-computer interaction, flat panel display, multimedia information processing and network transmission, and can be applied to scenes such as office, teaching, graphic interactive demonstration, etc.

[0082] The structure of the interactive tablet 10 is described below in conjunction with an embodiment.

[0083] Figure 1 is a schematic diagram of the structure of the interactive tablet 10, Figure 2 is an exploded schematic diagram of the interactive tablet 10, Figure 3 It is a schematic diagram of the state where the glass 300 is placed on the supporting part 212. Figure 4 is a cross-sectional view of the interactive flat panel 10, please refer to Figures 1 to 4 The interactive tablet 10 includes a first frame 110, a first filter strip 210, a glass 300 and a glass block 400. The first frame 110 may be a rolled frame, for example, a rolled iron frame. A mounting cavity 1102 is formed inside the first frame 110. An opening 1104 communicating with the mounting cavity 1102 is formed on one side of the first frame 110 close to the display area of ​​the interactive tablet 10. The mounting cavity 1102 and the opening 1104 may be formed during the rolling process of the iron frame. The display area may be understood as the area of ​​the interactive tablet 10 used to accommodate the display module or as the area formed after the frame of the interactive tablet 10 is surrounded, for example Figure 3 Area A in .

[0084] The first filter bar 210 is built into the installation cavity 1102. A bearing portion 212 is formed at one end of the first filter bar 210 close to the display area. The bearing portion 212 is arranged at the opening 1104 and exposed through the opening 1104. The first filter bar 210 can be made of a transparent PC (polycarbonate) material by injection molding, and the glass 300 is placed on the bearing portion 212. One end of the glass pressing block 400 is connected to the first frame 110, and the other end is pressed against the side of the glass 300 away from the bearing portion 212. The side surface of the glass pressing block 400 is in contact with the part of the first filter bar 210 located at the opening 1104 to limit the first filter bar 210 from leaving the installation cavity 1102 along the opening 1104.

[0085] Please refer to Figure 3 The bearing portion 212 is a bearing plane, and the glass pressing block 400 is made of plastic by injection molding. During installation, although the glass pressing block 400 directly contacts the bearing portion 212, the glass pressing block 400 will not scratch the glass 300. Therefore, there is no need to attach a buffer component, such as a buffer foam, between the glass pressing block 400 and the glass 300.

[0086] Please refer to Figure 3 and Figure 4 The first filter strip 210 is clamped by the first frame 110 to form the side wall of the mounting cavity 1102 so as to be accommodated in the mounting cavity 1102; or the first filter strip 210 is clamped by the first frame 110 to form the side wall of the mounting cavity 1102 and the glass pressing block 400 to be accommodated in the mounting cavity 1102.

[0087] It can be understood that in one of the aforementioned embodiments, the first filter strip 210 is clamped by the side wall of the first frame 110 used to form the installation cavity 1102 so as to be accommodated in the installation cavity 1102. It can be understood that: the side wall of the first frame 110 used to form the installation cavity 1102 itself forms a clamping structure, and the glass pressing block 400 only abuts and limits the first filter strip 210 at the side, so that the first filter strip 210 is accommodated in the installation cavity 1102.

[0088] In the aforementioned another embodiment, the first filter bar 210 is clamped by the first frame 110 for forming the side wall of the installation cavity 1102 and the glass block 400 to be accommodated in the installation cavity 1102, which can be understood as: under the action of the side of the glass block 400 abutting the first filter bar 210, the clamping structure formed by the first frame 110 itself clamps the first filter bar 210 together to accommodate it in the installation cavity 1102. Alternatively, the first frame 110 for forming the side wall of the installation cavity 1102 and the glass block 400 cooperate to form a clamping structure, and the first filter bar 210 is clamped by the clamping structure to be accommodated in the installation cavity 1102.

[0089] Figure 5 is a schematic cross-sectional view of the first frame 110 in one embodiment, Figure 6 FIG. 1 is a cross-sectional diagram of the first frame 110 in another embodiment. Figure 3 , Figure 5 and Figure 6 In some embodiments, the first frame 110 includes a front panel body 112, an intermediate connecting plate body 114, and a back panel body 116. The front panel body 112 is connected to the back panel body 116 through the intermediate connecting plate body 114 and is surrounded to form a mounting cavity 1102. The front panel body 112 and the back panel body 116 are relatively spaced and form an opening 1104. The angle formed between the front panel body 112 and the intermediate connecting plate body 114 is a, wherein 80°≤a≤90°. In one embodiment, a can be: 80°, 81°, 82°, 85°, 87°, 88°, 89°, or 90°.

[0090] In one embodiment, the angle formed between the front panel body 112 and the middle connecting plate body 114 is less than 90°, that is, 87°≤a<90°. Thus, the middle connecting plate body 114 and the front panel body 112 may be relatively offset by a certain angle, for example, Figure 5 and Figure 6As shown, the front panel body 112 is offset toward the middle connecting plate body 114 at a certain angle, so that a certain clamping structure can be formed between the front panel body 112 and the middle connecting plate body 114, or a certain clamping structure can be formed between the front panel body 112, the middle connecting plate body 114 and the back panel body 116, and the first filter strip 210 is clamped by the clamping structure, thereby improving the stability of the clamping of the first filter strip 210. In addition, when the angle formed between the front panel body 112 and the middle connecting plate body 114 is less than 90°, the back panel body 116 is also closer to the front panel body 112, and the glass pressing block 400 can be pressed against the glass 300 more firmly during assembly, thereby reducing the risk of the glass 300 jumping off.

[0091] In addition, when 87°≤a<90°, the assembly of the first filter strip 210 will not be affected due to the angle formed between the front plate body 112 and the middle connecting plate body 114 being too small.

[0092] Please continue to refer to Figure 5 and Figure 6 The end of the back panel body 116 close to the display area is bent toward the direction close to the front panel body 112 to form a step portion 1162. Figure 5 In this embodiment, the back panel body 116 is formed as a whole into a "Z"-shaped structure. Figure 6 The first frame 110 and Figure 5 Compared with the first frame 110 in the figure, the overall frame design is narrow, and the connection between the back panel body 116 and the middle connecting plate body 114 is narrowed as a whole.

[0093] The step portion 1162 is provided to provide a mounting platform for the glass pressing block 400. One end of the glass pressing block 400 is connected to the step portion 1162. Figure 5 and Figure 6 In one embodiment, the step portion 1162 includes a step plane portion 11622 facing the first filter strip 210 and a step vertical portion 11624 connected to the step plane portion 11622 and arranged at an angle, the glass pressing block 400 is connected to the step plane portion 11622, and the step plane portion 11622 and the step vertical portion 11624 are vertically arranged.

[0094] Figure 6 The first frame 110 is a narrow frame design. Figure 6 The spacing ratio between the middle step vertical portion 11624 and the middle connecting plate body 114 is Figure 5 The distance between the middle step vertical portion 11624 and the middle connecting plate body 114 is small. Figure 5 and Figure 6 In the two embodiments presented, the first frame 110 is entirely provided with a step portion 1162 , so as to facilitate supporting the glass 300 .

[0095] Please refer to Figure 5 and Figure 6 When the angle formed between the front panel body 112 and the middle connecting plate body 114 is less than 90°, that is, 87°≤a<90°, the stepped plane portion 11622 will be offset as a whole toward the direction of the front panel body 112. In this way, when the glass block 400 is assembled, since the stepped plane portion 11622 is closer to the front panel body 112, the glass block 400 can be offset as a whole toward the direction of pressing against the glass 300 or has a tendency to be offset toward the direction of pressing against the glass 300, and thus the glass block 400 can be pressed against the glass 300 more firmly, reducing the risk of the glass 300 jumping off.

[0096] Figure 7 is a schematic cross-sectional view of the first frame 110 in one embodiment, Figure 8 FIG. 1 is a cross-sectional diagram of the first frame 110 in another embodiment. Figure 7 and Figure 8 In some other embodiments, the step plane portion 11622 is offset relative to the step vertical portion 11624 in the direction close to the first filter strip 210 and the angle formed between the step plane portion 11622 and the step vertical portion 11624 is b, wherein 90°<b≤100°. In this way, the step plane portion 11622 presses against the first filter strip 210, thereby improving the stability of clamping the first filter strip 210. In addition, when the glass pressing block 400 is assembled, since the step plane portion 11622 is closer to the front panel body 112, the glass pressing block 400 can be offset as a whole in the direction of pressing against the glass 300 or has a tendency to be offset in the direction of pressing against the glass 300, so that the glass pressing block 400 can be pressed against the glass 300 more stably, thereby reducing the risk of the glass 300 jumping off. In one embodiment, b can be 91°, 92°, 93°, 94°, 95°, 96° or 100°.

[0097] In one embodiment, 90°<b≤93°, within this range, the step plane portion 11622 exerts greater pressure on the first filter bar 210, and does not affect the assembly of the first filter bar 210, thereby improving the stability of the clamping of the first filter bar 210. In addition, when the glass pressing block 400 is assembled, since the step plane portion 11622 is closer to the front panel body 112, the glass pressing block 400 can be offset as a whole in the direction of pressing against the glass 300 or has a tendency to offset in the direction of pressing against the glass 300, so that the glass pressing block 400 can be pressed against the glass 300 more stably, thereby reducing the risk of the glass 300 jumping off.

[0098] In one embodiment, when the angle formed between the front panel body 112 and the middle connecting plate body 114 is less than 90°, that is, 87°≤a<90°, at this time, the angle at which the step plane portion 11622 is offset as a whole in the direction close to the front panel body 112 will become relatively larger. In this way, when the glass block 400 is assembled, the step plane portion 11622 is closer to the front panel body 112. At this time, the glass block 400 can be further offset as a whole in the direction of pressing against the glass 300, or the tendency of offsetting in the direction of pressing against the glass 300 is more obvious, and thus the glass block 400 can be further firmly pressed against the glass 300, further reducing the risk of the glass 300 jumping off.

[0099] It can be seen that in the above interactive flat panel 10, the first filter strip 210 is built into the mounting cavity 1102 through the opening 1104, and the glass pressing block 400 is disposed on the bearing portion 212. The glass 300 is pressed by the glass pressing block 400, so that the glass 300 is fixed on the filter strip. Since the side surface of the glass pressing block 400 abuts against the portion of the first filter strip 210 located at the opening 1104, the first filter strip 210 can be restricted from being separated from the first filter strip 210 along the opening 1104. In one embodiment, in order to improve the stability of clamping the first filter bar 210, the side wall of the first frame 110 used to form the installation cavity 1102 itself forms a clamping structure for clamping the first filter bar 210, so that the first filter bar 210 is accommodated in the installation cavity 1102; or, the glass block 400 and the side wall of the first frame 110 used to form the installation cavity 1102 cooperate to form a clamping structure to clamp the first filter bar 210, thereby improving the stability of the first filter bar 210 installed in the installation cavity 1102, thereby reducing the risk of affecting the accuracy of the touch circuit board's detection of the user's touch action due to the unstable assembly of the first filter bar 210. In addition, when the filter bar is relatively stably accommodated in the installation cavity 1102, the risk of the glass 300 on the first filter bar 210 jumping off can also be reduced.

[0100] Fig. 9 This is a structural schematic diagram of the glass pressing block 400 from one viewing angle. Fig.10 is a structural schematic diagram of the glass pressing block 400 from another perspective, Fig.11 The first frame 110 and the first filter strip 210 are assembled. Fig.12 for Fig.11 The enlarged schematic diagram of M in the middle, Fig.24 for Fig.11 Please refer to the enlarged schematic diagram of R in the figure. Figures 9 to 12 and Fig.24One of the glass block 400 and the stepped plane portion 11622 is provided with a first positioning protrusion 410, and the other is provided with a first positioning hole 11626. The glass block 400 is inserted into the stepped plane portion 11622 through the first positioning protrusion 410 and the first positioning hole 11626 to be positioned and matched with the stepped plane portion 11622. In this way, through the positioning and matching of the first positioning protrusion 410 and the first positioning hole 11626, the glass block 400 can be positioned and installed on the first frame 110. Please refer to Fig.10 and Fig.24 The first frame 110 is provided with a first positioning hole 11626 at the step plane portion 11622, and the glass pressing block 400 is provided with a first positioning protrusion 410 which is positioned and matched with the first positioning hole 11626. The first positioning protrusion 410 can be a positioning column structure.

[0101] In some embodiments, the glass block 400 and the stepped plane portion 11622 are also fixed together by fasteners. The glass block 400 can be directly fixed to the stepped plane portion 11622 by fasteners, or after the glass block 400 is positioned and installed on the stepped plane portion 11622, the glass block 400 is fixed to the stepped plane portion 11622 by fasteners. In one embodiment, the fasteners can be screws. Please refer to Fig.12 and Fig.24 The step plane portion 11622 and the glass pressing block 400 are both provided with screw assembly holes 4000 , and the glass pressing block 400 is fixed to the step plane portion 11622 by means of screws and the screw assembly holes 4000 .

[0102] Fig.13 is a schematic structural diagram of the first filter strip 210 in one embodiment, Fig.14 for Fig.13 Please refer to the enlarged diagram of S in Fig.13 and Fig.14 In some embodiments, the interactive tablet 10 further includes a foam 500, which is connected to the outer side wall of the first filter bar 210. The first filter bar 210 is squeezed and matched with the inner side wall of the first frame 110 located in the installation cavity 1102 through the foam 500 to be built into the installation cavity 1102. The foam 500 is arranged between the first filter bar 210 and the first frame 110 to enhance the clamping effect of the first filter bar 210, so that the first filter bar 210 is more firmly arranged in the installation cavity 1102.

[0103] In addition, when the first filter bar 210 is assembled into the mounting cavity 1102, it is necessary to pre-position the first filter bar 210 or, when the assembly structure consisting of the first frame 110 and the first filter bar 210 is transported, in order to prevent the first filter bar 210 from falling off from the mounting cavity 1102, it is necessary to pre-fix the first filter bar 210. At this time, a foam 500 is arranged between the first filter bar 210 and the first frame 110. Under the action of the foam 500, the first filter bar 210 can be pre-accommodated in the mounting cavity 1102 and is not easy to fall off from the mounting cavity 1102.

[0104] Please refer to Fig.14 The number of the foams 500 is at least two, and all the foams 500 are arranged at intervals along the length direction of the first filter strip 210. The length direction of the first filter strip 210 is Fig.14 The C direction.

[0105] The interactive tablet 10 is generally square in structure, that is, the interactive tablet 10 generally has four frames, which are connected end to end, and the display module is arranged in the middle. The structure and material of the four frames are set according to needs.

[0106] For example, Fig.15 is a schematic diagram of the structure after three first frames 110 are assembled, Fig.16 is a schematic diagram of the frame structure of the interactive tablet 10; please refer to Figure 2 , Fig.15 and Fig.16 In some embodiments, the number of the first frames 110 and the first filter strips 210 are both three, and the three first frames 110 are respectively an upper frame 110a and two side frames 110b, and the upper frame 110a refers to the interactive tablet 10 in the use state, for example Fig.15 From the perspective of the image, the frame located at the top and the side frame 110b can be understood as the frames on the left and right sides. The three first filter strips 210 are two side filter strips 210b and an upper filter strip 210a. The side filter strips 210b are correspondingly accommodated in the mounting cavity 1102 of the side frame 110b, and the upper filter strip 210a is correspondingly accommodated in the mounting cavity 1102 of the upper frame 110a.

[0107] The two ends of the upper frame 110a can be respectively connected to the two side frames 110b by welding to form a U-shaped frame structure. The use of welding to connect can effectively control the deviation or step difference between the upper frame 110a and the side frames 110b during installation. Of course, in some other embodiments, the two ends of the upper frame 110a can also be respectively connected to the two side frames 110b by an intermediate connecting piece to form a U-shaped frame structure. The intermediate connecting piece can be a corner piece, and the upper frame 110a and the side frames 110b are connected by the corner piece.

[0108] Fig.18 For the schematic diagram of the connection corner 900, please refer to Figure 2 , Figures 16 to 18 The interactive tablet 10 further includes a second frame 120 and two connecting corners 900. The second frame 120 is a bottom frame 120a. The bottom frame 120a refers to the interactive tablet 10 when in use, for example Fig.16 In the medium viewing angle, the border is located below.

[0109] In some embodiments, the second frame 120 may be an aluminum alloy frame. Wherein, both ends of the bottom frame 120a and the two side frames 110b are each provided with a corresponding connection corner 900, and the bottom frame 120a is connected to an end of the side frame 110b away from the upper frame 110a through the corresponding connection corner 900. The connection corner 900 may be a plastic structure, formed by injection molding.

[0110] Fig.19 This is a cross-sectional view of the first frame 110 and the first filter strip 210 after assembly. Fig.19 The first filter strips 210 are provided with accommodating cavities 218 inside. The interactive tablet 10 further includes three first touch circuit boards 700, namely an upper circuit board 700a and two side circuit boards 700b. The side circuit boards 700b correspond to the accommodating cavities 218 of the side filter strips 210b, and the upper circuit boards 700a correspond to the accommodating cavities 218 of the upper filter strips 210a.

[0111] In one embodiment, please refer to Figure 4 and Fig.19 The side wall of the first filter strip 210 forming the accommodating cavity 218 is also provided with a slot structure, and the first touch circuit board 700 is movably mounted in the slot structure.

[0112] Fig. 20 for Fig.15 The enlarged schematic diagram of N in Fig.21 This is a structural entity diagram of the limiting bracket 600 from a front perspective. Fig. 22 This is a schematic diagram of the limiting bracket 600 from the rear side. Figure 20-Figure 22 A limiting bracket 600 is provided at the connecting corner 900 of the upper frame 110a and the side frame 110b, that is, a limiting bracket 600 is provided at each of the upper frame 110a and the left frame 110b and the right frame 110b. The limiting bracket 600 includes a limiting body 610 and a first locking body 620 connected to each other. The limiting body 610 is provided between the upper frame 110a and the side frame 110b, and the first locking body 620 is connected to the upper frame 110a.

[0113] Please refer to Figure 20 to Figure 22The limiting body 610 includes a first limiting surface 612 facing the upper frame 110a and a second limiting surface 614 facing the side frame 110b. Fig. 20 In the E direction, the first limiting surface 612 is limited and matched with the end of the upper filter bar 210a and the end of the upper circuit board 700a. In this way, under the limiting action of the first limiting surface 612, the upper filter bar 210a and the upper circuit board 700a will not shake, or the shaking amplitude is within an acceptable range due to assembly error, thereby reducing the risk of affecting the accuracy of the upper circuit board 700a detecting the user's touch action due to unstable assembly of the upper filter bar 210a. At the same time, under the action of the first limiting surface 612, the upper circuit board 700a itself can also be more stably installed in the accommodating cavity 218, further reducing the risk of affecting the accuracy of the upper circuit board 700a detecting the user's touch action due to the shaking of the upper circuit board 700a during use. In addition, the upper filter bar 210a is limited by the first limiting surface 612 to prevent the upper filter bar 210a from shaking in the length direction of the upper frame 110a, and the risk of the glass 300 set on the upper filter bar 210a jumping off can also be reduced.

[0114] It should be noted that the first limiting surface 612 is limitedly matched with the end of the upper filter bar 210a and the end of the upper circuit board 700a. It can be understood that the first limiting surface 612 and the end of the upper filter bar 210a and the end of the upper circuit board 700a are completely in contact with each other or there is a certain gap deviation due to assembly error.

[0115] Meanwhile, please continue to refer to Fig. 20 and Fig.21 , in the length direction of the side frame 110b, that is, Fig. 20 In the D direction, the second limiting surface 614 is limited by the end of the side circuit board 700b. In this way, under the limiting effect of the second limiting surface 614, the risk of the touch circuit board shaking during use affecting the accuracy of the user's touch action detection can be reduced.

[0116] It should be noted that the second limiting surface 614 and the end of the side circuit board 700b may be in a position where the two are completely in contact with each other or there is a certain gap deviation due to assembly error.

[0117] It can be seen from the above embodiments that the upper filter strip 210a and the upper circuit board 700a can be limited by the first limiting surface 612, and the side circuit board 700b is limited by the second limiting surface 614, but it is still unable to reduce the impact of the shaking of the side filter strip 210b on the side circuit board 700b.

[0118] To solve the above problems, please refer to Fig.23 , Fig.23 1 is a partial enlarged schematic diagram of an interactive flat panel 10 in an embodiment. In some embodiments, the upper filter bar 210a and the side filter bar 210b are in contact with each other, and in the length direction of the side frame 110b, the orthographic projection of the upper filter bar 210a at least partially falls on the side filter bar 210b. The orthographic projection of the upper filter bar 210a is also: the projection of the upper filter bar 210a along the D direction. At this time, the upper filter bar 210a and the side filter bar 210b have overlapping parts in the length direction of the side frame 110b. Then, in the length direction D of the side frame 110b, the upper filter bar 210a can limit the side filter bar 210b. In this way, there is no need to set up a corresponding limiting structure to limit the side filter bar 210b. In an embodiment, the upper filter bar 210a and the side filter bar 210b abut against each other, in addition to achieving mutual limitation, can also prevent light leakage.

[0119] It should be noted that the upper filter strip 210 a and the side filter strip 210 b may be in contact with each other completely or with a certain gap deviation due to assembly error.

[0120] Fig.17 For a schematic diagram of assembling the side frame 110b and the bottom frame 120a by connecting the corners 900, please refer to Fig.17 On the bottom side, a third limiting surface 926 is formed on the side of the connecting corner 900 toward the side filter strip 210b, in the length direction of the side frame 110b, that is, Fig.23 In the D direction, the third limiting surface 926 is limited in cooperation with the end of the side filter strip 210b, and the fourth limiting surface 928 is limited in cooperation with the end of the side circuit board 700b. In this way, under the joint limiting action of the third limiting surface 926 and the upper filter strip 210a, the side filter strip 210b can be limited to move in the D direction, thereby reducing the risk of the side circuit board 700b affecting the accuracy of the user's touch action detection due to the unstable assembly of the side filter strip 210b. In addition, by limiting the shaking of the side filter strip 210b in the D direction, the risk of the glass 300 on the side filter strip 210b jumping off can also be reduced. In one embodiment, under the joint limiting action of the second limiting surface 614 and the fourth limiting surface 928, the side circuit board 700b can be limited from moving in the D direction. In this way, the side circuit board 700b itself can be more stably installed in the accommodating cavity 218, thereby further reducing the risk of affecting the user's touch action detection accuracy due to the shaking of the side circuit board 700b during use.

[0121] It should be noted that the third limiting surface 926 and the side filter strip 210b may be in a position-limiting manner such that the two are completely in contact with each other or there is a certain gap deviation due to assembly error. Similarly, the fourth limiting surface 928 and the side circuit board 700b bracket may be in a position-limiting manner such that the two are in contact with each other or there is a certain gap deviation due to assembly error.

[0122] In one embodiment, please refer to Fig. 20 and Fig.21 The limiting body 610 is provided with a first limiting surface 612, so that the upper filter bar 210a and the upper circuit board 700a can be limited. In order to improve the reliability of limiting the upper filter bar 210a and the upper circuit board 700a, the first locking body 620 is connected to the upper frame 110a, so that the first limiting surface 612 can always maintain a limited state with the upper filter bar 210a and the upper circuit board 700a.

[0123] In one embodiment, please refer to Fig.21 and Fig. 22 In some embodiments, one of the first locking body 620 and the upper frame 110a is provided with a second positioning protrusion 622, and the other is provided with a second positioning hole 11628. The first locking body 620 and the upper frame 110a are inserted and positioned through the second positioning protrusion 622 and the second positioning hole 11628. In this way, by positioning the first locking body 620 and the upper frame 110a, the first limiting surface 612 of the limiting bracket 600 can be limited and matched with the upper filter strip 210a and the upper circuit board 700a when the limiting bracket 600 is installed. Please refer to Fig.12 , Fig. 22 and Fig.23 In this embodiment, the first locking body 620 is provided with a second positioning protrusion 622, and the upper frame 110a is provided with a second positioning hole 11628. The second positioning protrusion 622 can be a positioning column structure.

[0124] Please refer to Figure 20 to Figure 22 In some embodiments, the first locking body 620 and the upper frame 110a can also be fixedly matched by fasteners. In this way, in these embodiments, the first locking body 620 can be directly fixed on the upper frame 110a, so that the first limiting surface 612 can always be limited and matched with the upper filter bar 210a and the upper circuit board 700a. Alternatively, by first positioning and matching the first locking body 620 and the upper frame 110a, and then locking and fixing the first locking body 620 and the upper frame 110a, the reliability of the limiting and matching between the first limiting surface 612 and the upper filter bar 210a and the upper circuit board 700a can be improved, so that the first limiting surface 612 can always be limited and matched with the upper filter bar 210a and the upper circuit board 700a. In one embodiment, the fastener can be a screw fastener.

[0125] However, after a series of studies, the inventors found that when the first locking body 620 is locked to the upper frame 110a by fasteners, the limiting bracket 600 as a whole will be tilted relative to the upper frame 110a, so that there is a certain assembly step difference between the limiting bracket 600 and the side frame 110b, which is not conducive to the subsequent assembly of other components.

[0126] Based on this, please refer to Figure 20 to Figure 25 , Fig.25 In some embodiments, the position-limiting bracket 600 further includes a second locking body 630, which is connected to the side wall of the position-limiting body 610 away from the upper frame 110a, and the second locking body 630 is connected to the side frame 110b. In this way, the second locking body 630 is additionally arranged in the direction opposite to the first locking body 620, and the second locking body 630 is connected to the side frame 110b, thereby reducing the assembly step difference between the position-limiting bracket 600 and the side frame 110b.

[0127] Please refer to Fig.21 and Fig. 22 The first locking body 620 and the second locking body 630 can both be connecting plates, and the whole is a plastic structure.

[0128] In one embodiment, the second locking body 630 and the side frame 110b can be connected by a snap-fitting manner. Fig.25 The second locking body 630 is provided with a locking protrusion, and the side frame 110b is provided with a holding edge. The locking protrusion is locked on the holding edge to achieve a locking fit between the second locking body 630 and the side frame 110b.

[0129] In one embodiment, based on the above embodiment, please refer to Fig. 22 The limiting bracket 600 is used to further provide a support body 640 on one side of the back panel 2000 of the interactive tablet 10, and the support body 640 is used to support the back panel 2000 of the interactive tablet 10 to prevent collapse when the back panel 2000 is pressed.

[0130] The optional structure of the connection switching will be described below with reference to the accompanying drawings.

[0131] Please refer back Fig.17 and Fig.18 The connecting corner 900 is an L-shaped structure as a whole, one end of the connecting corner 900 is used to connect with the side frame 110b, and the other end is used to connect with the bottom frame 120a. The connecting corner 900 can be a plastic structure, which is formed by injection molding.

[0132] In one embodiment, Fig.26 for Fig.16 For the enlarged diagram of P, please refer to Fig.18 and Fig.26 In some embodiments, a clamping groove 910 is formed at one end of the connecting corner 900 close to the side frame 110b. The connecting corner 900 is clamped on the side of the side frame 110b facing the back panel 2000 of the interactive flat panel 10 through the clamping groove 910, and the other opposite end of the connecting corner 900 is inserted into the internal cavity of the bottom frame 120a. The clamping groove 910 clamped on the side frame 110b actually plays a role in positioning the connecting corner 900. When the connecting corner 900 is clamped on the side frame 110b through the clamping groove 910, the connecting corner 900 and the side frame 110b are then connected and fixed by screws. The clamping groove 910 can be formed in many ways. For example, a groove is dug on the connecting corner 900 to form the clamping groove 910, or it is formed on the connecting corner 900 by two upper and lower mounting bodies spaced apart. In one embodiment, please refer to Fig.26 The clamping groove 910 is clamped on the stepped plane portion 11622 of the side frame 110b.

[0133] However, during the assembly process of the side frame 110b, for example, when the side frame 110b is a rolled frame, the side frame 110b will be turned outward relative to the bottom frame 120a in a direction away from the bottom frame 120a, for example Fig.26 In the X direction, at this time, the assembly step difference formed between the side frame 110b and the bottom frame 120a during the assembly process is relatively large.

[0134] Based on this, please refer to Fig.18 and Fig.26 In some embodiments, a first mounting hole 126 and a second mounting hole 128 are formed on a side of the bottom frame 120a facing the back panel 2000 of the interactive tablet 10. The first mounting hole 126 and the second mounting hole 128 are arranged at intervals along the width direction of the bottom frame 120a. The width direction of the bottom frame 120a is Fig.26 In the Z direction, the first mounting hole 126 is closer to the display area than the second mounting hole 128. The portion of the connecting corner 900 that is used to extend into the inner cavity of the bottom frame 120a is formed with a mounting surface 920, and the mounting surface 920 is provided with a third mounting hole 922 and a mounting boss 924 that protrudes in a direction away from the mounting surface 920 relative to the third mounting hole 922, and the mounting boss 924 corresponds to the first mounting hole 126 and is configured to be connected by a fastener, in other words, the fastener passes through the first mounting hole 126 and is connected to the mounting boss 924, and the third mounting hole 922 corresponds to the second mounting hole 128 and is configured to be connected by a fastener, in other words, the fastener passes through the second mounting hole 128 and is connected with the third mounting hole 922 in a matching manner.

[0135] Since the mounting boss 924 is protruding relative to the mounting surface 920, after being assembled by fasteners, the side of the bottom frame 120a located on the mounting boss 924 will be higher than the side of the bottom frame 120a located on the third mounting hole 922. Fig.26 As shown, the bottom frame 120a as a whole will flip in the Y direction. When the bottom frame 120a flips, the side frame 110b will be pulled to move along the side close to the display area. In this way, under the pulling of the bottom frame 120a, the side frame 110b that was originally flipped outward along the X direction relative to the bottom frame 120a will be pulled back, thereby reducing the assembly step difference formed between the side frame 110b and the bottom frame 120a during the assembly process.

[0136] In one embodiment, the fastener may be a screw, and the mounting boss 924 is provided with a threaded hole. The screw passes through the first mounting hole 126 on the bottom frame 120a and cooperates with the threaded hole to achieve the connection between the bottom frame 120a and the mounting boss 924. The first mounting hole 126 and the second mounting hole 128 may be mounting through holes, and the third mounting hole 922 may be a threaded hole.

[0137] The connecting corner 900 is generally a plastic part. When the side frame 110b and the bottom frame 120a are connected through the connecting corner 900, the strength of the interactive tablet 10 at the corner will be relatively low. In order to ensure the strength requirements of the interactive tablet 10 at the corner and reduce the risk of damage to the interactive tablet 10 at the corner, it is necessary to strengthen the overall strength of the interactive tablet 10 at the corner.

[0138] Fig. 27 For a schematic diagram of assembling the side frame 110b and the bottom frame 120a, please refer to Fig. 27 In some embodiments, one end of the side frame 110b close to the bottom frame 120a is bent to form a bent portion 118, and the bent portion 118 is spliced ​​with the bottom frame 120a. A reinforcing body 1182 is provided on the side of the bent portion 118 facing the bottom frame 120a. The reinforcing body 1182 extends into the internal cavity of the bottom frame 120a and is connected to the bottom frame 120a. By providing the reinforcing body 1182 and connecting the bottom frame 120a, the strength of the interactive tablet 10 at this location can be enhanced. In one embodiment, the reinforcing body 1182 and the bottom frame 120a can be connected by screws. The reinforcing body 1182 and the bottom frame 120a are connected by screws to solve the problem of EMC grounding conduction.

[0139] It should be noted that the splicing of the bending portion 118 and the bottom frame 120a means that the bending portion 118 and the bottom frame 120a are in a docking state, and the bending portion 118 and the bottom frame 120a may meet and abut against each other, or due to assembly errors, there may be a certain gap deviation between the two.

[0140] In addition to the above-mentioned frame and filter strip components, the interactive tablet 10 also includes some audio and video modules 1000, such as cameras and microphones. The audio and video modules 1000 can generally be placed outside the frame, for example, installed on the top of the frame through some brackets, or an installation groove is opened on the frame, and the audio and video module 1000 is built into the installation groove.

[0141] Please refer to Figure 1 , Figure 13 to Figure 14 , Figures 28 to 30 , Fig.28 is a schematic diagram of the peripheral frame of the interactive tablet 10, Fig.29 for Fig.28 The enlarged schematic diagram of O in the figure is shown in Figure 2. Fig.30 for Figure 1 Schematic diagram of the enlarged T in the middle. In some embodiments, the first frame 110 is provided with an audio and video area 1106 for accommodating the audio and video module 1000 in the installation cavity 1102, and the first filter bar 210 is formed with a avoidance gap 216 for avoiding the audio and video module 1000 at the audio and video area 1106 corresponding to the first filter bar 210. Since the material of the first filter bar 210 is generally PC, when the first filter bar 210 is provided with the avoidance gap 216, the strength of the first filter bar 210 around the avoidance gap 216 is relatively low. During use, the first filter bar 210 will bend toward the direction of the audio and video module 1000 at the bottom of the avoidance gap 216, which will cause the touch circuit board located inside the first filter bar 210 to deviate, thereby affecting the detection accuracy of the first touch circuit board 700 for the user's touch action.

[0142] Based on this, please refer to Figure 3 and Fig.12 On the basis of the above-mentioned embodiment, the first filter strip 210 forms a limiting protrusion 214 on one side facing the step portion 1162; the interactive tablet 10 further includes a limiting member 3000, which is disposed through a portion of the step plane portion 11622 corresponding to the audio and video area 1106, and in the height direction of the first frame 110, such as Figure 3 In the H direction, the position-limiting member 3000 is closer to the avoidance notch 216 than the position-limiting protrusion 214, and the orthographic projection of the position-limiting member 3000 toward the first filter strip 210 at least partially falls on the position-limiting protrusion 214, so that the position-limiting member 3000 cooperates with the position-limiting protrusion 214 in the height direction of the first frame 110. In this way, under the position-limiting and blocking action of the position-limiting member 3000, the first filter strip 210 is not easily deformed at the avoidance notch 216. The orthographic projection of the position-limiting member 3000 toward the first filter strip 210 is: the projection of the position-limiting member 3000 in the H direction. At this time, it can also be understood that in the H direction, the position-limiting member 3000 is located directly above the first filter strip 210.

[0143] In one embodiment, please refer to Fig.12 and Fig.14 The limiting protrusion 214 extends along the length direction of the first frame 110, and the limiting protrusion 214 contacts and seals with the side of the step portion 1162 facing the first filter strip 210. The setting of the limiting protrusion 214 can, on the one hand, limit the deformation of the first filter strip 210 at the avoidance notch 216, and on the other hand, can seal the gap between the first filter strip 210 and the first frame 110, thereby preventing dust and water from entering the installation cavity 1102 of the first frame 110 through the gap between the two, causing certain damage to the components in the installation cavity 1102.

[0144] Please refer to Figure 3 In this embodiment, the stopper 3000 is a screw. In one embodiment, the first frame 110 is provided with a corresponding threaded hole. The screw is threadedly engaged with the threaded hole and extends to engage with the stopper protrusion 214 in the height direction of the first frame 110. Of course, the stopper 3000 can also be other columnar structures, which pass through the first frame 110 and engage with the stopper protrusion 214 in a limit position.

[0145] In one embodiment, please refer to Figure 3 and Fig.28 The audio and video module 1000 is arranged on the upper frame 110a, and an audio and video area 1106 is correspondingly arranged in the installation cavity 1102 of the upper frame 110a. A limiting protrusion 214 is correspondingly arranged on the upper filter strip 210a corresponding to the audio and video area 1106, and a screw passes through the upper frame 110a and cooperates with the limiting protrusion 214 in the H direction.

[0146] Please refer to Figure 2 The interactive tablet 10 also includes a second filter strip 220 and a second touch circuit board 800. The second touch circuit board 800 is located in the internal cavity of the bottom frame 120a. A snap-in groove is formed on the side of the bottom frame 120a facing the display area, and the second filter strip 220 is snap-into the snap-in groove.

[0147] The second touch circuit board 800 and the first touch circuit board 700 may have the same structure and may be a touch circuit board for implementing infrared detection in the relevant interactive tablet 10. The second filter strip 220 may also be made of transparent PC material and manufactured by extrusion molding.

[0148] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An interactive tablet, wherein: include: A first frame, wherein a mounting cavity is formed inside the first frame, and an opening is formed on a side of the first frame close to the display area of ​​the interactive flat panel, wherein the opening is in communication with the mounting cavity; A first filter strip, the first filter strip is built into the mounting cavity, a bearing portion is formed at one end of the first filter strip close to the display area, and the bearing portion is arranged at the opening and exposed through the opening; Glass, the glass is placed on the bearing part; and A glass pressing block, one end of which is connected to the first frame, and the other end of which is pressed against a side of the glass away from the bearing portion, and a side surface of the glass pressing block is in contact with a portion of the first filter strip located at the opening to limit the first filter strip from leaving the mounting cavity along the opening; The first filter strip is clamped by the first frame to form the side wall of the mounting cavity so as to be accommodated in the mounting cavity; or the first filter strip is clamped by the first frame to form the side wall of the mounting cavity and the glass pressing block so as to be accommodated in the mounting cavity.

2. The interactive tablet according to claim 1, wherein: The first frame includes a front panel body, an intermediate connecting plate body and a back panel body, the front panel body is connected to the back panel body through the intermediate connecting plate body and is surrounded to form the installation cavity, the front panel body and the back panel body are relatively spaced apart and form the opening, wherein the angle formed between the front panel body and the intermediate connecting plate body is a, wherein 80°≤a≤90°.

3. The interactive tablet according to claim 2, wherein: 87°≤a≤90°。 4. The interactive tablet according to claim 2, wherein: One end of the back panel body close to the display area is bent toward the direction close to the front panel body to form a step portion, the step portion includes a step plane portion facing the first filter strip and a step vertical portion connected to the step plane portion and arranged at an angle, the glass pressing block is connected to the step plane portion, and the step plane portion and the step vertical portion are perpendicular to each other; or The step plane portion is offset relative to the step vertical portion in a direction close to the first filter strip and forms an angle b with the step vertical portion, wherein 90°<b≤100°.

5. The interactive tablet according to claim 4, wherein: 90°＜b≤93°。 6. The interactive tablet according to claim 4, wherein: The first frame is provided with an audio and video area for accommodating an audio and video module in the installation cavity, the first filter bar is formed with an avoidance notch for avoiding the audio and video module at a position corresponding to the audio and video area, and a limited position protrusion is formed on one side of the first filter bar facing the step portion; The interactive tablet also includes a limiter, which is arranged through a portion of the step plane portion corresponding to the audio and video area, and in the height direction of the first frame, the limiter is closer to the avoidance gap than the limiter protrusion, and the orthographic projection of the limiter toward the first filter strip at least partially falls on the limiter protrusion, so that the limiter and the limiter protrusion cooperate in the upper limit position in the height direction of the first frame.

7. The interactive tablet according to claim 4, wherein: The limiting protrusion extends along the length direction of the first frame, and the limiting protrusion contacts and seals with the side surface of the step portion facing the first filter strip.

8. The interactive tablet according to claim 4, wherein: One of the glass pressing block and the stepped plane portion is provided with a first positioning protrusion, and the other is provided with a first positioning hole, and the glass pressing block is inserted into the first positioning protrusion and the first positioning hole to be positioned and matched with the stepped plane portion; and / or The glass pressing block and the step plane portion are also fixedly matched by fasteners.

9. The interactive tablet according to any one of claims 1 to 8, wherein: The interactive flat panel further includes foam, which is connected to the outer side wall of the first filter strip. The first filter strip is squeezed and matched with the inner side wall of the first frame located in the installation cavity through the foam so as to be built into the installation cavity.

10. The interactive tablet according to claim 9, wherein: The number of the foams is at least two, and all the foams are arranged at intervals along the length direction of the first filter strip.

11. The interactive tablet according to any one of claims 1 to 8, wherein: The first frame is a rolled frame.

12. The interactive tablet according to any one of claims 1 to 8, wherein: The number of the first frames and the first filter strips are both three, the three first frames are respectively an upper frame and two side frames, the three first filter strips are respectively two side filter strips and an upper filter strip, the side filter strips are correspondingly accommodated in the mounting cavity of the side frames, and the upper filter strip is correspondingly accommodated in the mounting cavity of the upper frame; The two ends of the upper frame are respectively welded to the two side frames or connected via an intermediate connecting piece to form a U-shaped frame structure.

13. The interactive tablet according to claim 12, wherein: The first filter strips are each provided with a receiving cavity therein, and the interactive flat panel further comprises three first touch circuit boards, namely an upper circuit board and two side circuit boards, the side circuit boards being correspondingly received in the receiving cavities of the side filter strips, and the upper circuit board being correspondingly received in the receiving cavity of the upper filter strip.

14. The interactive tablet according to claim 13, wherein: A limiting bracket is provided at the connecting corner of the upper frame and the side frame, and the limiting bracket includes a limiting body and a first locking body connected to each other, the limiting body is provided between the upper frame and the side frame, and the first locking body is connected to the upper frame; The limiting body includes a first limiting surface facing the upper frame and a second limiting surface facing the side frame. In the length direction of the upper frame, the first limiting surface is limitedly matched with the end of the upper filter strip and the end of the upper circuit board. In the length direction of the side frame, the second limiting surface is limitedly matched with the end of the side circuit board.

15. The interactive tablet according to claim 14, wherein: The upper filter bar and the side filter bar are in contact with each other, and in the length direction of the side frame, the orthographic projection of the upper filter bar at least partially falls on the side filter bar, so that in the length direction of the side frame, the upper filter bar can limit the side filter bar.

16. The interactive tablet according to claim 14, wherein: One of the first locking body and the upper frame is provided with a second positioning protrusion, and the other is provided with a second positioning hole, and the first locking body and the upper frame are inserted and matched through the second positioning protrusion and the second positioning hole for positioning; and / or The first locking body and the upper frame are also fixedly matched by fasteners.

17. The interactive tablet according to claim 14, wherein: The limiting bracket further includes a second locking body, which is connected to a side wall of the limiting body facing away from the upper frame, and the second locking body is connected to the side frame.

18. The interactive tablet according to claim 17, wherein: The limiting bracket is used to further provide a supporting body on one side facing the back plate of the interactive flat panel, and the supporting body is used to support the back plate of the interactive flat panel.

19. The interactive tablet according to claim 12, wherein: The interactive tablet also includes a second frame and two connecting corners, the second frame is a bottom frame, and a connecting corner is correspondingly arranged at both ends of the bottom frame and the two side frames, and the bottom frame is connected to an end of the side frame away from the upper frame through the corresponding connecting corner.

20. The interactive tablet according to claim 19, wherein: A clamping groove is formed at one end of the connecting corner close to the side frame, and the connecting corner is clamped on the back panel side of the side frame facing the interactive flat panel through the clamping groove, and the other end of the connecting corner opposite is inserted into the internal cavity of the bottom frame.

21. The interactive tablet according to claim 20, wherein: A first mounting hole and a second mounting hole are formed on one side of the bottom frame facing the back plate of the interactive flat panel, the first mounting hole and the second mounting hole are arranged at intervals along the width direction of the bottom frame, and the first mounting hole is closer to the display area than the second mounting hole; The portion of the connecting corner that extends into the internal cavity of the bottom frame is formed with a mounting surface, the mounting surface is provided with a third mounting hole and a mounting boss that protrudes relative to the third mounting hole in a direction away from the mounting surface, the mounting boss corresponds to the first mounting hole and is configured to be connected by a fastener; the third mounting hole corresponds to the second mounting hole and is configured to be connected by a fastener.

22. The interactive tablet according to claim 20, wherein: One end of the side frame close to the bottom frame is bent to form a bent portion, the bent portion is spliced ​​with the bottom frame, and a reinforcement body is provided on the side of the bent portion facing the bottom frame. The reinforcement body extends into the internal cavity of the bottom frame and is connected to the bottom frame.

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