Interactive intelligent large board

Abstract

The present application discloses an interactive intelligent large board, comprising a display screen, a back plate, an antenna module, a clamping assembly and a first limiting portion. A hole passing through the inner surface and the outer surface of the back plate is formed in the back plate; the antenna module is arranged on the side of the back plate distant from the display screen, the antenna module is opposite to the hole, the hole is configured to allow for the antenna module to radiate towards the display screen, and the antenna module is attached to the back plate; and the clamping assembly and the first limiting portion are both arranged on the back plate, a second limiting portion is arranged on the antenna module, the antenna module is in limitation fit with the first limiting portion by means of the second limiting portion to limit the transverse displacement of the antenna module on the back plate, the antenna module is clamped and fixed to the back plate by means of the clamping assembly to limit the longitudinal displacement of the antenna module, and the antenna module covers the hole.

Description

An interactive intelligent board Technical Field

[0001] The present application relates to the field of display technology, and in particular to an interactive intelligent large panel. Background Art

[0002] In related technologies, interactive smart panels generally adopt a behind-the-screen antenna technology solution, where the antenna module is designed on the back panel of the interactive smart panel, and the electromagnetic waves emitted by the antenna module are radiated toward the display screen.

[0003] However, when the antenna module is fixed by gluing or screws, considering the installation restrictions of the smart interactive board and the service life of the interactive smart board, the traditional fixing method cannot effectively fix the antenna module relative to the backplane.

[0004] Summary of the Invention

[0005] The present application provides an interactive intelligent large board that can ensure the effective fixation of the antenna module relative to the backboard.

[0006] The present application provides an interactive smart large board, comprising: a display screen; a back panel located on the back side of the display screen, the back panel being provided with an opening that passes through the inner and outer surfaces of the back panel; an antenna module, arranged on a side of the back panel away from the display screen, the antenna module being opposite to the opening, the opening being arranged for the antenna module to radiate toward the display screen, and the antenna module being in contact with the back panel; a clamping assembly and a first limiting portion, the clamping assembly and the first limiting portion being both mounted on the back panel, a second limiting portion being provided on the antenna module, the antenna module being limited and matched with the first limiting portion through the second limiting portion and limiting the lateral displacement of the antenna module on the back panel, the antenna module being clamped and fixed to the back panel through the clamping assembly and limiting the longitudinal displacement of the antenna module, and the antenna module covering the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0008] FIG1 is a schematic structural diagram of an interactive intelligent large board according to an embodiment of the present application;

[0009] FIG2 is a schematic structural diagram of a backlight module and a rear cover in one embodiment of the present application;

[0010] FIG3 is a schematic structural diagram of a backlight module, a rear cover, and a protective cover in another embodiment of the present application;

[0011] FIG4 is a schematic structural diagram of a backlight module in one embodiment of the present application;

[0012] FIG5 is a schematic diagram of a partial structure of a backlight module in one embodiment of the present application;

[0013] Figure 6 is an enlarged schematic diagram of point A in Figure 5.

[0014] FIG. 7 is a schematic diagram of a partial structure of a backlight module in an embodiment of the present application.

[0015] Figure numerals: 10, back panel; 11, opening; 12, air avoidance; 20, light-emitting element; 30, antenna module; 31, antenna; 32, substrate; 33, RF chip; 41, first limiting portion; 42, second limiting portion; 43, snap-fit ​​assembly; 431, elastic snap-fit ​​component; 431a, connecting portion; 431b, interference portion; 44, limiting groove; 50, back cover; 51, accommodating cavity; 60, protective cover; 61, protective cavity; 70, display screen. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0017] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0018] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0019] For interactive smart large boards, the antenna module is set on the frame of the large board, including opening a gap in the frame to radiate electromagnetic waves, or directly setting the antenna on the side of the frame facing downward (towards the ground). With the development of interactive smart large boards, in order to achieve a narrow frame of interactive smart large boards, the antenna needs to be re-selected for installation on the smart interactive large board. Therefore, the smart interactive large board has appeared with the antenna module (or antenna PCB) set on the back panel of the whole machine, and the radiating surface of the antenna faces the display screen of the smart interactive large board.

[0020] Currently, under-screen antennas on the market place the antenna module on the inner surface of the backplane (the side facing the display). However, due to the multiple LEDs arranged on the inner surface of the backplane, the antenna module cannot be effectively fixed to the inner surface of the backplane. The solution adopted is to open a mounting hole in the backplane and position it with a non-metallic sealing plate, which provides space for the antenna module to be installed.

[0021] Alternatively, the antenna module is set on the outer surface of the back panel (the side of the back panel facing away from the display screen). In order to avoid interference of the back panel with the radiation of the antenna module, a through hole is opened in the back panel, and the antenna module can radiate toward the display screen through the through hole.

[0022] Conventional technology typically uses adhesive to attach the antenna module to the backplane's exterior surface. However, large, intelligent interactive panels are subject to long lifespans, direct sunlight, and high indoor temperatures, all of which can directly affect the adhesive's adhesion, significantly reducing the stability of the antenna module's installation.

[0023] Based on the defects of the above-mentioned assembly method, a screw fixing method has emerged in the prior art, that is, the antenna module is fixed to the back panel by screws. However, for the smart interactive large board, the number of screws for the overall assembly needs to be limited by materials (for example, the number of screws used for each interactive smart large board needs to be limited). Considering the assembly requirements of the interactive smart large board, the use of screws to fix the antenna module will increase the number of screws of the smart interactive large board, thereby affecting the assembly efficiency of the smart interactive large board.

[0024] Therefore, neither gluing nor screw fixing methods can effectively adapt to the installation requirements of smart interactive large panels.

[0025] Considering that fixing the antenna module to the outer surface of the back panel is mainly to limit the lateral and longitudinal displacement of the antenna module relative to the back panel. Therefore, in this application, the antenna module and the back panel are fixed by adopting two methods: snap-in and position limiting. That is, one of the snap-in and position limiting is used to limit the longitudinal displacement of the antenna module relative to the back panel, and the other is used to limit the lateral displacement of the antenna module relative to the back panel. Compared with the prior art that only uses one process to assemble the antenna module and the back panel, this application assembles the antenna module and the back panel through two processes: snap-in and position limiting. The installation can be completed without the help of auxiliary tools, and the installation is very convenient.

[0026] Based on the above technical problems, the present application provides an interactive smart large board, as shown in Figures 1 and 2, the interactive smart large board includes a display screen 70 and a backlight module. The backlight module is arranged on the back side of the display screen 70. The back side of the display screen 70 refers to the side of the display screen 70 that is opposite to the light-emitting side of the display screen 70. The backlight module can be a side-entry backlight module or a direct-type backlight module.

[0027] Specifically, the backlight module includes a backboard 10 , and the interactive smart board further includes an antenna module 30 , a snap-on assembly 43 (as shown in FIG. 6 ), and a first limiting portion 41 (as shown in FIG. 6 ).

[0028] Among them, the back panel 10 is located on the back side of the display screen 70, and is provided with an opening 11 (as shown in Figure 4) that passes through the inner surface and outer surface of the back panel 10; the inner surface of the back panel 10 refers to the side of the back panel 10 facing the display screen 70, and the outer surface of the back panel 10 refers to the side of the back panel 10 away from the display screen 70. The preparation material of the back panel 10 can be metal or non-metal materials, and this application does not limit the preparation material of the back panel 10.

[0029] The antenna module 30 is arranged on the side of the back panel 10 away from the display screen 70. The antenna module 30 is opposite to the opening 11. The opening 11 is configured to allow the antenna module 30 to radiate toward the display screen 70, and the antenna module 30 is in contact with the back panel 10. It can be understood that the antenna module 30 is configured to radiate electromagnetic waves toward the back panel 10 so that the backlight module has a wireless signal transmission function. The opening 11 can enable the electromagnetic waves radiated by the antenna module 30 to pass through the back panel 10 smoothly to prevent the back panel 10 from obstructing the transmission of the electromagnetic waves.

[0030] The snap-fit ​​assembly 43 and the first limiting portion 41 are both installed on the back panel 10. The antenna module 30 is provided with a second limiting portion 42 (as shown in Figure 6). The antenna module 30 is limited and matched with the first limiting portion 41 through the second limiting portion 42 and limits the lateral displacement of the antenna module 30 on the back panel 10. The antenna module 30 is snap-fitted and fixed to the back panel 10 through the snap-fit ​​assembly 43 and limits the longitudinal displacement of the antenna module 30, and the antenna module 30 covers the opening 11.

[0031] Considering that if the distance between the back panel 10 and the display screen 70 is relatively close, the radiation performance of the antenna module 30 will be greatly affected by the display screen 70, including: (1) the absorption of electromagnetic waves by the display screen 70, (2) the display screen 70 as a metal-like film will also affect the frequency of the antenna module 30, resulting in an inability to radiate well in the required frequency band, and (3) the intelligent interactive large board is equipped with functional components such as the main board, power board, and light board. These structures will cause the antenna module 30 to generate greater interference in the intelligent interactive large board, affecting the receiving sensitivity of the antenna module 30. Therefore, the present application installs the antenna module 30 on the side of the back panel 10 away from the display screen 70, increasing the distance between the antenna module 30 and the display screen 70 so that the antenna module 30 and the display screen 70 can maintain a sufficient distance, thereby effectively reducing the impact of the display screen 70 on the electromagnetic waves radiated by the antenna module 30, improving the radiation performance and radiation efficiency of the antenna module 30, and making the antenna module 30 more sensitive to transmission and reception. Furthermore, the antenna module 30 is mounted and matched with the back panel 10 (including the second limiter 42) through the snap assembly 43 and the first limiter 41, which can effectively limit the lateral and longitudinal displacement of the antenna module 30 after being attached to the back panel 10, and the antenna module 30 covers the opening 11. The above method effectively improves the installation and fixing effect of the antenna module 30 and the back panel 10. At the same time, the structural strength of the antenna module 30 itself can effectively enhance the strength of the opening 11 area on the back panel 10, thereby avoiding the reduction of the strength of the back panel 10 due to the opening 11.

[0032] In addition, the arrangement of the antenna module 30 may not be affected by the size of the space between the back panel 10 and the display screen 70. The antenna module 30 may have a larger arrangement space and arrangement position, making the assembly of the antenna module 30 in the backlight module more convenient, and the size and type of the antenna module 30 may have more options.

[0033] In one embodiment of the present application, the antenna module 30 can be a PCB antenna module, a steel sheet antenna module, or a rod-shaped antenna module. It is understandable that because the antenna module 30 has sufficient layout space and layout position, the type of antenna module 30 can be selected in a wider range, so that the antenna module 30 can be an antenna module of the type of PCB antenna module, steel sheet antenna module, or rod-shaped antenna module. It should also be noted that the antenna module 30 includes but is not limited to a routing function module, a wireless communication function module, a Bluetooth function module, a near field communication (NFC) function module, etc. The routing function module supports routing function, the wireless communication function module supports wireless communication function, the Bluetooth function module supports Bluetooth function, and the near field communication function module supports near field communication.

[0034] In some embodiments of the present application, referring to Figures 1 and 2 , the backlight module further includes a rear cover 50, which is disposed on a side of the back panel 10 away from the display screen 70 and forms a receiving cavity 51 with the back panel 10. It should be noted that the rear cover 50 is a device used in the interactive smart panel to shield functional components such as the main board, power board, and light board mounted on the outer surface of the back panel 10, thereby providing protection for these functional components.

[0035] The antenna module 30, the snap-fit ​​assembly 43, and the first stopper 41 can be located within the accommodating cavity 51. The back cover 50 can be used to protect the antenna module 30, the snap-fit ​​assembly 43, and the first stopper 41, eliminating the need for additional protective components for the antenna module 30, the snap-fit ​​assembly 43, and the first stopper 41. The back cover 50 can be made of a metal material, providing a signal shielding function that prevents external signals from interfering with the normal operation of the antenna module 30. Furthermore, the back cover 50 also has a certain signal reflection function, enhancing the radiation intensity of the antenna module 30 toward the back panel 10.

[0036] Specifically, the backlight module also includes a radio frequency chip 33, which is located within the accommodating cavity 51 and is in communication with the antenna 31. The radio frequency chip 33 can control the antenna 31 to radiate electromagnetic waves of a predetermined frequency. By arranging both the antenna module 30 and the radio frequency chip 33 within the accommodating cavity 51, the connection between the antenna module 30, the radio frequency chip 33, the mainboard, and the power board is more convenient, eliminating the need to open additional wiring holes on the backplane 10 to achieve the connection between the antenna module 30 and the radio frequency chip 33. More specifically, the radio frequency chip 33 can also be mounted on the substrate 32.

[0037] As shown in FIG3 , in another embodiment of the present application, the rear cover 50 and the back panel 10 can enclose a receiving cavity 51 to house the functional components of the interactive intelligent large board, including components such as the main board, power board, and light board. The backlight module also includes a protective cover 60, which is disposed on the side of the back panel 10 away from the display screen 70 and is located outside the receiving cavity 51. The protective cover 60 and the back panel 10 enclose a protective cavity 61, and the antenna module 30, the snap-fit ​​assembly 43, and the first limiter 41 are located within the protective cavity 61. It will be understood that in this embodiment, the antenna module 30 is located outside the rear cover 50, and the protective cover 60 provides shielding and protection for the antenna module 30, the snap-fit ​​assembly 43, and the first limiter 41, so that the antenna module 30 can be separated from the electronic components within the rear cover 50, thereby preventing signals generated by the electronic components within the rear cover 50 from interfering with the normal operation of the antenna module 30.

[0038] The protective cover 60 may be made of a metal material, so that the protective cover 60 may also have a signal shielding function and a signal reflection function; of course, in other embodiments, the protective cover 60 may also be made of a non-metallic material.

[0039] It should also be noted that when the antenna module 30 is located in the protective cavity 61 , the RF chip 33 can also be located in the protective cavity 61 , making the connection between the antenna module 30 and the RF chip 33 more convenient.

[0040] As shown in FIG3 , in some embodiments of the present application, the antenna module 30 includes a base 31 and an antenna 32. The base 31 is attached to the back panel 10 via a snap-fit ​​assembly 43. The antenna 31 is located on the base 32 and opposite the opening 11. The antenna 31 radiates electromagnetic waves toward the display screen 70 through the opening 11. It should be noted that the base 31 is a structure within the antenna module 30 that provides support for the antenna 32. The base 31 may be a circuit board, a steel sheet, a rod, or a bar. The base 31 is attached to the back panel via the snap-fit ​​assembly 43, thereby enhancing the structural strength of the opening 11 on the back panel 10 and preventing the back panel 10 from breaking at the opening 11. The antenna 32 is a structure within the antenna module 30 that radiates electromagnetic waves. One, two, or more antennas 32 may be provided. The present application does not impose any specific restrictions on the number of antennas 32.

[0041] Furthermore, the base 31 covers the opening 11 , so that the base 31 plays a certain sealing role, preventing dirt such as dust from entering the inner surface of the back plate 10 through the opening 11 .

[0042] In one embodiment, the orthographic projection of the opening 11 on the substrate 31 can cover the antenna 32. It is understood that the area where the antenna 32 is located is within the projection range of the opening 11, so that the vast majority of the electromagnetic waves radiated by the antenna 32 can pass through the opening 11 and the back plate 10, thereby improving the radiation performance of the antenna module 30.

[0043] It should also be noted that the antenna 31 is usually a structure formed on the substrate 32 by metal routing. The area on the substrate 32 opposite to the position of the antenna 31 is usually cleared (clearance treatment refers to removing the metal in the area on the substrate 32 corresponding to the antenna 31 to avoid metal shielding the radiation signal of the antenna 31). The substrate 32 basically does not hinder the radiation of electromagnetic waves generated by the antenna 31. Therefore, when the substrate 32 is installed on the inner surface of the back panel 10, the antenna 31 can be located on the side of the substrate 32 away from the back panel 10, so that the antenna 31 is located on the outer surface of the back panel 10; when the substrate 32 is installed on the outer surface of the back panel 10, the antenna 31 can be located on the side of the substrate 32 away from the back panel 10, or the antenna 31 can be located on the side of the substrate 32 close to the back panel 10.

[0044] As shown in Figures 4 to 6, in some embodiments of the present application, the clamping assembly 43 includes one or more elastic clamping members 431 configured to be fixedly engaged with the base 32. The one or more elastic clamping members 431 are spaced apart on the outer surface of the back plate 10 along the longitudinal direction of the base 32, and one end of the elastic clamping member 431 is connected to the back plate 10. The elastic clamping member 431 and the back plate 10 form a retaining groove 44 configured to engage the base 32. It is understood that the elastic clamping member 431 is elastic, and the base 32 can maintain contact with the back plate 10 under the elastic force of the elastic clamping member 431, thereby making the connection between the base 32 and the back plate 10 tighter and further improving the connection strength between the base 32 and the back plate 10. The elastic clamping member 431 can be integrally formed with the back plate 10, or the elastic clamping member 431 can be formed separately from the back plate 10 and then spliced ​​together by welding, gluing, threading, or clamping.

[0045] Furthermore, the elastic clamping member 431 may be provided at the corners of the base 32 so as to limit the corners of the base 32 through the elastic clamping member 431 to prevent the corners of the base 32 from warping.

[0046] As shown in Figures 6 and 7, in some embodiments of the present application, the elastic clip 431 includes a connecting portion 431a and a resisting portion 431b, the connecting portion 431a and the resisting portion 431b being integrally formed. The connecting portion 431a is connected to the outer surface of the back plate 10, and the resisting portion 431b is configured to resist the plate surface of the base 32. The connecting portion 431a, the resisting portion 431b, and the back plate 10 cooperate to form a limiting groove 44, and a clearance hole 12 is provided on the groove wall of the limiting groove 44 to allow the connecting portion 431a and the resisting portion 431b to elastically displace. It is understood that by integrally forming the connecting portion 431a and the resisting portion 431b, the elastic effect of the elastic clip 431 itself can be effectively guaranteed. In addition, the clearance hole 12 provides elastic displacement space for the connecting portion 431a and the resisting portion 431b, which can effectively ensure the elastic effect of the elastic fixing member 43 toward the back plate 10. Furthermore, the interference portion 431 b may be a convex structure, which may more effectively interfere with the base 32 , thereby reducing the risk of separation between the base 32 and the elastic clamping member 431 .

[0047] Continuing with reference to Figures 6 and 7 , in some embodiments of the present application, a first limiting portion 41 is provided on one of the back plate 10 and the base 32, and a second limiting portion 42 is provided on the other of the back plate 10 and the base 32. The first limiting portion 41 is snap-fitted to the second limiting portion 42 to secure the base 32 to the back plate 10 and prevent the base 32 from being separated from the back plate 10 due to factors such as vibration. Of course, in other embodiments, the base 32 can also be secured to the back plate 10 by screws, adhesive fixation, or press-fit fixation. In addition, the alignment of the first limiting portion 41 and the second limiting portion 42 can also facilitate assembly of the base 32 and the snap-fit ​​assembly 43.

[0048] In some embodiments of the present application, the backlight module may further include a light-emitting element 20, which is arranged on the inner surface of the back panel 10; the light-emitting element 20 is a device in the backlight module configured to provide a light source, and the light-emitting element 20 may be an LED lamp.

[0049] In one embodiment of the present application, the backlight module may further include optical films such as a light guide plate and a reflective plate. Taking the backlight module as a side-entry backlight module as an example, the light-emitting element 20 is installed on the inner peripheral side wall of the frame of the back panel 10, and the light guide plate and the reflective plate are both located on the inner surface of the back panel 10. The reflective plate is located on the side of the light guide plate close to the back panel 10, and the light-emitting element 20 is located on the peripheral side of the light guide plate. Most of the light emitted by the light-emitting element 20 directly enters the light guide plate from the peripheral side of the light guide plate, and a small amount of light is reflected by the reflective plate and then emitted to the back of the light guide plate. The light guide plate converts the incident light into vertical light and emits it to the display screen 70.

[0050] In this application, the terms "first," "second," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or order; the term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0051] In the description of this application, it should be understood that the terms "upper" and "lower" 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 this application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0052] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, equivalent modifications made according to the claims of the present application are still within the scope of protection of the present application.

Claims

1. An interactive intelligent board, wherein: include: Display screen; a back panel located on the back side of the display screen, the back panel being provided with an opening penetrating the inner and outer surfaces of the back panel; an antenna module, disposed on a side of the back plate away from the display screen, the antenna module being opposite to the opening, the opening being configured to allow the antenna module to radiate toward the display screen, and the antenna module being in contact with the back plate; The clamping assembly and the first limiting portion are both installed on the back panel, the antenna module is provided with a second limiting portion, the antenna module is limited and cooperated with the first limiting portion through the second limiting portion and limits the lateral displacement of the antenna module on the back panel, the antenna module is clamped and fixed to the back panel through the clamping assembly and limits the longitudinal displacement of the antenna module, and the antenna module covers the opening.

2. The interactive intelligent board according to claim 1, wherein: The interactive intelligent board also includes: The back cover is arranged on a side of the back plate away from the display screen, and is surrounded by the back plate to form a receiving cavity, and the antenna module, the clamping assembly and the first limiting portion are located in the receiving cavity.

3. The interactive intelligent board according to claim 2, wherein: The interactive intelligent board also includes: A radio frequency chip is located in the accommodating cavity and is communicatively connected to the antenna module.

4. The interactive intelligent board according to claim 1, wherein: The interactive intelligent board also includes: A rear cover, the rear cover being arranged on a side of the back plate away from the display screen and forming together with the back plate a receiving cavity for housing functional components of the interactive intelligent large panel; A protective cover is arranged on a side of the back plate away from the display screen and is located outside the accommodating cavity. The protective cover and the back plate enclose a protective cavity. The antenna module, the snap-on assembly and the first limiting portion are located in the protective cavity.

5. The interactive intelligent board according to claim 1, wherein: The antenna module includes: A substrate and an antenna, wherein the antenna is arranged on the substrate, the substrate is attached to the back plate, and the antenna is opposite to the opening, and the antenna radiates electromagnetic waves toward the display screen through the opening.

6. The interactive intelligent board according to claim 5, wherein: The clamping assembly includes one or more elastic clamping parts configured to limit the longitudinal displacement of the base, and the one or more elastic clamping parts are arranged at intervals on the outer surface of the back plate along the long side direction of the base, and one end of the elastic clamping part is connected to the back plate, and the elastic clamping part and the back plate form a limiting groove configured to engage the base.

7. The interactive intelligent board according to claim 6, wherein: The elastic clip includes a connecting portion and a resisting portion, the connecting portion and the resisting portion are integrally formed, the connecting portion is connected to the outer surface of the back plate, the resisting portion is configured to resist the plate surface of the base and limit the longitudinal displacement of the base, the connecting portion, the resisting portion and the back plate cooperate to form the limiting groove, and an escape opening configured to allow the elastic displacement of the connecting portion and the resisting portion is opened on the groove wall of the limiting groove.

8. The interactive intelligent board according to claim 5, wherein: The base covers the opening.

9. The interactive intelligent board according to claim 5, wherein: The orthographic projection of the opening on the substrate covers the antenna.

10. The interactive intelligent board according to claim 1, wherein: The antenna module is a PCB antenna module, a steel sheet antenna module or a rod antenna module.

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