Large screen accessory device

Abstract

The utility model discloses a large screen accessory device, which comprises a multimedia module, a first communication module and a shell, and is characterized in that the multimedia module is used for acquiring a multimedia signal from the outside and / or outputting the multimedia signal to the outside; the first communication module is electrically connected to the multimedia module and is used for being at least in communication connection with a second communication module arranged on the large-screen equipment so as to transmit multimedia signals to the large-screen equipment; a containing cavity used for containing the multimedia module and the first communication module is formed in the shell, a plurality of protruding parts are formed on one of the two oppositely-arranged end faces of the shell and used for being matched and aligned with concave parts arranged at the top of the large-screen equipment, and first magnetic attraction elements are arranged at the protruding parts and used for being connected with second magnetic attraction elements arranged at the concave parts in a magnetic attraction mode. The detachable connection between the large-screen accessory device and the large-screen equipment is realized. According to the scheme, the maintenance cost can be reduced as much as possible on the premise that the large-screen equipment supports diversified functions, and different scenes are considered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, in particular to a large-screen accessory device. BACKGROUND

[0002] With the rapid development of electronic information technology, large-screen devices (such as conference large screens, smart blackboards, etc.) are more and more loved, and the application fields are gradually scene-based and widely used in conferences, families, classrooms, etc.

[0003] Due to the need to support diversified functions, it is necessary for large-screen devices to integrate corresponding modular devices. For example, if a large-screen device needs to support remote conferences, it is necessary for the large-screen device to integrate microphone arrays, camera modules and other related modular devices. However, in this way, on the one hand, these modular devices cannot be quickly replaced due to assembly, disassembly and other influences, and the maintenance cost is high, and on the other hand, it is difficult to ensure proper adaptation to different scenes. For example, in a classroom scene, there is no different demand for the specific configuration of the microphone array and the camera module compared with a conference scene. Therefore, how to reduce the maintenance cost as much as possible while meeting the diversified functions of the large-screen device and taking into account different scenes. Utility model content

[0004] The technical problem solved by the present application is to provide a large-screen accessory device that can reduce maintenance costs as much as possible while meeting the diversified functions of the large-screen device and taking into account different scenes.

[0005] In order to solve the above technical problem, the present application provides a large-screen accessory device in the first aspect, comprising: a multimedia module, a first communication module and a shell, the multimedia module is used for collecting and / or outputting multimedia signals from the outside; the first communication module is electrically connected to the multimedia module, and is used for at least communicating with the second communication module arranged in the large-screen device to transmit multimedia signals with the large-screen device; the shell is internally formed with a containing cavity for accommodating the multimedia module and the first communication module, one of the two end faces of the shell is formed with a plurality of protrusions for matching and positioning with the recess arranged at the top of the large-screen device, a first magnetic attraction element is arranged at the protrusion for magnetic attraction connection with a second magnetic attraction element arranged at the recess, so as to realize the detachable connection of the large-screen accessory device and the large-screen device.

[0006] Therefore, the large-screen accessory device comprises a multimedia module, a first communication module and a shell. The multimedia module is configured to collect and / or output multimedia signals from / to the outside. The first communication module is electrically connected to the multimedia module and is configured to be communicatively connected with a second communication module arranged on the large-screen device to transmit multimedia signals with the large-screen device. The shell has a receiving cavity for accommodating the multimedia module and the first communication module. One of the two opposite end faces of the shell is provided with a plurality of protrusions for matching and positioning with recesses arranged on the top of the large-screen device. The first magnetic attraction elements are arranged at the protrusions and are magnetically connected with the second magnetic attraction elements arranged at the recesses to achieve detachable connection of the large-screen accessory device with the large-screen device. On the one hand, the multimedia module and the first communication module are electrically connected with each other in the large-screen accessory device, and the first communication module is communicatively connected with the second communication module in the large-screen device, which can ensure that the large-screen device supports diversified functions through the large-screen accessory device. On the other hand, since the large-screen device supports diversified functions through the large-screen accessory device, the possibility of disassembling the large-screen device itself can be reduced as much as possible, and only the large-screen accessory device needs to be maintained. Since the large-screen accessory device is detachably connected with the large-screen device, the maintenance cost can be reduced as much as possible. On the other hand, the large-screen accessory device can be relatively freely configured with different specifications of multimedia modules, so that different specifications of large-screen accessory devices can be selected according to application needs and detachably connected with the large-screen device to meet different scenes. Therefore, the maintenance cost can be reduced as much as possible under the premise of meeting the diversified functions of the large-screen device, and different scenes can be considered.

[0007] The magnetic properties of the first magnetic attraction elements arranged at the protrusions are the same, and the magnetic properties of the second magnetic attraction elements arranged at the recesses are the same. The magnetic properties of any first magnetic attraction element and any second magnetic attraction element are opposite.

[0008] Therefore, the magnetic properties of each first magnetic attraction element are the same, the magnetic properties of each second magnetic attraction element are the same, and the magnetic properties of any first magnetic attraction element and any second magnetic attraction element are opposite. Therefore, the complexity of assembling the magnetic attraction elements can be reduced.

[0009] The magnetic properties of the first magnetic attraction elements arranged at the protrusions are not completely the same, and the magnetic properties of the second magnetic attraction elements arranged at the recesses are not completely the same. The magnetic properties of the first magnetic attraction elements and the second magnetic attraction elements of any matching and positioning protrusion and recess are opposite.

[0010] Therefore, in addition to the basic function of detachable connection, the magnetic attraction elements can also assist the positioning function of the protrusions and the recesses. If the protrusions and the recesses are misaligned, they cannot be attracted due to the same magnetic properties, which indirectly indicates the misalignment error.

[0011] The magnetic properties of the first magnetic attraction elements at the adjacent protrusions are opposite, and the magnetic properties of the second magnetic attraction elements at the adjacent recesses are opposite.

[0012] Therefore, the magnetic properties of the first magnetic attraction elements at the adjacent protrusions are opposite, and the magnetic properties of the second magnetic attraction elements at the adjacent recesses are opposite, so that the first magnetic attraction elements and the second magnetic attraction elements can be arranged in order, thereby reducing the complexity of assembling the magnetic attraction elements to a certain extent.

[0013] The large-screen accessory device further comprises a first communication seat, the first communication module comprises a first communication interface, the first communication interface is arranged on the first communication seat, the first communication seat is rotationally connected to the end face of the shell provided with the protrusion, and the top of the large-screen device is further provided with a second communication seat, the second communication module comprises a second communication interface matched with the first communication interface, and the second communication interface is arranged on the second communication seat; when the large-screen accessory device is mounted on the large-screen device, the first communication seat is rotated away from the end face provided with the protrusion to enable the first communication interface to be connected to the second communication interface in alignment, or when the large-screen accessory device is detached from the large-screen device, the first communication seat is rotated to be close to the end face provided with the protrusion.

[0014] Therefore, by further configuring the first communication seat on the large-screen accessory device and configuring the corresponding second communication seat on the large-screen device, on the one hand, the large-screen accessory device and the large-screen device can be connected in communication through a wired form, and on the other hand, since the first communication seat is rotationally connected to the shell, the first communication seat can be conveniently stored when the large-screen accessory device is detached from the large-screen device, thereby avoiding damage due to bumps as much as possible. In addition, since the end face of the large-screen accessory device is provided with the protrusion, even if the storage is forgotten, the communication seat can be protected from bumps as much as possible through the protrusion.

[0015] The first communication module is a wireless communication module, and the second communication module is a wireless communication module using the same communication protocol as the first communication module.

[0016] Therefore, the first communication module and the second communication module can realize wireless connection between the large-screen accessory device and the large-screen device.

[0017] The large-screen accessory device further comprises a battery and a charging circuit electrically connected to each other, the multimedia module and the first communication module are electrically connected to the battery respectively, and the charging circuit is electrically connected to an external power supply to charge the battery.

[0018] Therefore, by configuring the battery and the charging circuit on the large-screen accessory device, the large-screen accessory device can work independently after being detached from the large-screen device; in addition, when the large-screen device supports external power supply, the large-screen accessory device can be charged by combining the aforementioned communication seat.

[0019] The first magnetic element is arranged inside the protruding part; and / or the protruding part is a hollow structure, and the protruding part and the accommodating cavity are communicated with each other.

[0020] Therefore, the first magnetic element is arranged inside the protruding part, which can improve the appearance of the large-screen accessory device and protect the magnetic element. In addition, the protruding part is arranged as a hollow structure and connected with the accommodating cavity, which can improve the assembly convenience of the large-screen accessory device.

[0021] The shell further comprises a media end face between the two end faces, and the media end face is provided with a plurality of holes for the multimedia module to collect and / or output multimedia signals from / to the outside.

[0022] Therefore, by arranging the media end face between the two end faces, and the media end face is provided with a plurality of holes for the multimedia module to collect and / or output multimedia signals from / to the outside, the smooth collection and / or output of multimedia signals can be ensured.

[0023] The multimedia module comprises a microphone array; and / or the multimedia module comprises a camera module; and / or the multimedia module comprises a speaker module.

[0024] Therefore, the multimedia module comprises at least one of a microphone array, a camera module, and a speaker module, which can enrich the multimedia module as much as possible. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of an embodiment of the large-screen accessory device of the present application;

[0026] Figure 2 is a schematic diagram of an embodiment of the large-screen accessory device and the large-screen equipment in the loading state of the present application;

[0027] Figure 3 is a schematic diagram of an embodiment of the large-screen accessory device and the large-screen equipment in the disassembled state of the present application;

[0028] Figure 4 is a structural schematic diagram of another embodiment of the large-screen accessory device of the present application. DETAILED DESCRIPTION

[0029] The scheme of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] In the following description, specific details are set forth in order to provide a thorough understanding of the present application, such as specific system structures, interfaces, techniques, etc., but the present application is not limited thereto.

[0031] The terms "system" and "network" are often used interchangeably herein. The term "and / or", when used herein, merely means that there are three cases, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally means that the front and rear associated objects are in an "or" relationship. In addition, "multiple" herein means two or more than two.

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , Figure 1 is a structural schematic diagram of an embodiment of the large screen accessory device of the present application, Figure 2 is a schematic diagram of an embodiment of the large screen accessory device and the large screen equipment in a loading state, Figure 3 is a schematic diagram of an embodiment of the large screen accessory device and the large screen equipment in a disassembled state, Figure 4 is a structural schematic diagram of another embodiment of the large screen accessory device of the present application. As shown in Figures 1 to 3 , the large screen accessory device 10 comprises a multimedia module 11, a first communication module 12 and a shell 13. The multimedia module 11 is used for collecting and / or outputting multimedia signals from / to the outside. The first communication module 12 is electrically connected to the multimedia module 11 and is used for at least communicating with a second communication module (not shown) provided in the large screen equipment 20 to transmit multimedia signals with the large screen equipment. The shell 13 has a receiving cavity (not shown) formed therein for accommodating the multimedia module 11 and the first communication module 12. The shell 13 comprises two end faces 131 and 132 arranged oppositely. One of the end faces 132 is formed with a plurality of protrusions A for matching and positioning with a plurality of recesses B provided at the top of the large screen equipment 20. The protrusions A are provided with first magnetic elements A1 for magnetically connecting with second magnetic elements B1 provided at the recesses B to achieve detachable connection of the large screen accessory device 10 and the large screen equipment 20.

[0033] In one implementation scenario, the multimedia module 11 comprises a microphone array 111. In this case, the voice signals collected from the outside can be transmitted to the large screen equipment 20 through the communication connection between the first communication module 12 and the second communication module. Exemplarily, the microphone array 111 can be a four-array microphone, or the microphone array 111 can be a six-array microphone. The specific type of the microphone array 111 is not limited herein.

[0034] In one implementation scenario, the multimedia module 11 comprises a camera module 112, in which case, the image signal collected from the outside can be transmitted to the large-screen device 20 through the communication connection between the first communication module 12 and the second communication module. Exemplarily, the camera module 112 can be an 8-megapixel camera module suitable for a classroom scenario, or the camera module 112 can also be a 13-megapixel camera module suitable for a conference scenario, and the specific pixel of the camera module 112 is not limited herein.

[0035] In one implementation scenario, the multimedia module 11 comprises a speaker module 113, in which case, the audio signal from the large-screen device 20 can be transmitted to the outside through the communication connection between the first communication module 12 and the second communication module. Exemplarily, the speaker module 113 can include, but is not limited to, high-pitched, low-pitched, and medium-pitched speakers, and the specific composition of the speaker module 113 is not limited herein.

[0036] In one implementation scenario, the shell 13 further comprises a media end face 133 between the two end faces 131 and 132, and the media end face 133 is provided with a plurality of holes (not shown) for the multimedia module 11 to collect and / or output multimedia signals from the outside. Exemplarily, in the case where the multimedia module 11 comprises a microphone array 111, the multimedia module 11 can collect voice signals from the outside; or in the case where the multimedia module 11 comprises a camera module 112, the multimedia module 11 can collect image signals from the outside; or in the case where the multimedia module 11 comprises a speaker module 113, the multimedia module 11 can output audio signals to the outside. Of course, the above examples are only a few possible examples of the multimedia module 11 outputting multimedia signals to the outside and collecting multimedia signals from the outside, and do not limit other possible functions of the multimedia module 11. Other possible functions of the multimedia module 11 are not exemplified herein. In addition, it should be noted that in the case where the large-screen accessory device 10 is loaded on the large-screen device 20, the media end face 133 can be located on the same side as the screen of the large-screen device 20.

[0037] In one implementation scenario, please refer to Figure 4 , Figure 4Specifically, the cross-sectional view of the large screen accessory device 10. The large screen accessory device 10 can further include a first communication seat 14, and the first communication module 12 includes a first communication interface 121, which is arranged on the first communication seat 14. The first communication seat 14 is rotationally connected to the end surface 132 of the housing 13 provided with a protruding portion A. In addition, the top of the large screen device 20 is also provided with a second communication seat (not shown). The second communication module includes a second communication interface (not shown) that matches the first communication interface 121. The second communication interface is arranged on the second communication seat. It should be noted that when the large screen accessory device 10 is loaded on the large screen device 20, the first communication seat 14 is rotated away from the end surface 132 provided with the protruding portion A, so that the first communication interface 121 is connected in position with the second communication interface. Alternatively, when the large screen accessory device 10 is detached from the large screen device 20, the first communication seat 14 is rotated to be close to the end surface 132 provided with the protruding portion A. In the above manner, by further configuring the first communication seat 14 on the large screen accessory device 10 and configuring the corresponding second communication seat on the large screen device 20, on the one hand, the large screen accessory device 10 and the large screen device 20 can be connected in communication through a wired form. On the other hand, since the first communication seat 14 is rotationally connected to the housing 13, when the large screen accessory device 10 is detached from the large screen device 20, the first communication seat 14 can be conveniently stored, thereby avoiding damage due to bumps as much as possible. In addition, since the end surface 132 of the large screen accessory device 10 is provided with the protruding portion A, even if the first communication seat 14 is forgotten to be stored, the protruding portion A can also protect the first communication seat 14 from being bumped as much as possible.

[0038] In a specific implementation scenario, the first communication interface 121 can be a USB male head, and the second communication interface can be a USB female head. Alternatively, the first communication interface 121 can be a pogopin male head, and the second communication interface can be a pogopin female head. Of course, the above examples are only a few possible examples of the first communication interface 121 and the second communication interface, and the specific settings of the first communication interface 121 and the second communication interface are not limited herein.

[0039] In a specific implementation scenario, please continue to refer to Figure 4 The first communication module 12 can further include a first communication circuit 122, which can be arranged in the accommodation cavity, and the first communication interface 121 is electrically connected to the first communication circuit. Similarly, the second communication module can further include a second communication circuit (not shown), and the second communication interface is electrically connected to the second communication circuit.

[0040] In a specific implementation scenario, please continue to refer to Figure 4 The first communication seat 14 can specifically include a rotating shaft 141 and a rotating rod 142. The rotating rod 142 is provided with the first communication interface 121, and the rotating rod 142 is rotationally connected to the housing 13 through the rotating shaft 141.

[0041] In one specific implementation scenario, the first communication seat 14 can be arranged on the side of the first protruding part A away from the last protruding part A, or the first communication seat 14 can be arranged on the side of the last protruding part A away from the first protruding part A, or the first communication seat 14 can be arranged between two adjacent protruding parts A. Of course, the above examples are only several possible positions of the first communication seat 14, and the arrangement position of the first communication seat 14 is not limited herein.

[0042] In another implementation scenario, different from the foregoing implementation, as another possible implementation, the first communication module 12 is a wireless communication module, and the second communication module is a wireless communication module using the same communication protocol as the first communication module 12. Exemplarily, the first communication module 12 can include but is not limited to a Bluetooth module, and the specific type of the communication protocol is not limited herein. In the above manner, the first communication module 12 and the second communication module can realize wireless connection between the large-screen accessory device 10 and the large-screen equipment 20.

[0043] In one implementation scenario, the large-screen accessory device 10 further includes a battery (not shown) and a charging circuit (not shown) electrically connected to each other, the multimedia module 11 and the first communication module 12 are at least electrically connected to the battery respectively, and the charging circuit is used to be electrically connected to an external power supply (not shown) to charge the battery. In the above manner, by configuring the battery and the charging circuit in the large-screen accessory device 10, the large-screen accessory device 10 can work independently after being detached from the large-screen equipment 20; in addition, when the large-screen equipment 20 supports external power supply, the large-screen accessory device 10 can also be charged by combining the foregoing first communication seat 14. That is to say, the large-screen accessory device 10 can independently supply power to its multimedia module 11 and first communication module 12 by virtue of its battery and charging circuit, so that the large-screen accessory device 10 can work independently of the large-screen equipment 20 when detached from the large-screen equipment 20 in addition to being attached to the large-screen equipment 20 when loaded on the large-screen equipment 20. In addition, the first communication module 12 can also be used to communicate with other devices, such as a terminal device such as a mobile phone, when the first communication module 12 is a wireless communication module, to realize wireless communication connection with the terminal device such as a mobile phone, to extend the terminal device such as a mobile phone. Of course, the above examples are only several possible examples in actual application, and other possible application scenarios are not exemplified herein.

[0044] In one implementation scenario, the first magnetic attraction element A1 can be arranged inside the protruding part A. Exemplarily, the first magnetic attraction element A1 can be arranged inside the protruding part A by means of a process such as dispensing, and the specific process of arranging the first magnetic attraction element A1 inside the protruding part A is not limited herein.

[0045] In one embodiment, the protrusion A can be provided as a hollow structure, and the protrusion A and the accommodating cavity can be in communication with each other.

[0046] In one embodiment, the magnetic properties of the first magnetic elements A1 provided at the protrusions A can be the same, and the magnetic properties of the second magnetic elements B1 provided at the recesses B can also be the same, and the magnetic properties of any first magnetic element A1 and any second magnetic element B1 are opposite. For example, the side of the first magnetic element A1 provided at the protrusion A and facing the recess B can be provided as an S pole, and the side of the second magnetic element B1 provided at the recess B and facing the protrusion A can be provided as an N pole; or, conversely, the side of the first magnetic element A1 provided at the protrusion A and facing the recess B can be provided as an N pole, and the side of the second magnetic element B1 provided at the recess B and facing the protrusion A can be provided as an S pole. Of course, the above examples are only a few possible examples of the magnetic properties of the first magnetic elements A1 and the second magnetic elements B1, and other possible settings are not limited. In this case, other possible settings will not be exemplified one by one. In the above manner, the magnetic properties of the first magnetic elements A1 are the same, the magnetic properties of the second magnetic elements B1 are the same, and the magnetic properties of any first magnetic element A1 and any second magnetic element B1 are opposite, so as to reduce the complexity of assembling the magnetic elements.

[0047] In another embodiment, different from the above embodiment, as another possible embodiment, the magnetic properties of the first magnetic elements A1 provided at the protrusions A can not be completely the same, and the magnetic properties of the second magnetic elements B1 provided at the recesses B can not be completely the same, and the magnetic properties of the first magnetic elements A1 and the second magnetic elements B1 of any matched and positioned protrusion A and recess B are opposite. In the above manner, the magnetic elements can not only realize the basic function of detachable connection, but also assist the positioning function of the protrusion A and the recess B, that is, if the protrusion A and the recess B are mispositioned, they cannot be attracted due to the same magnetic properties, thereby indirectly prompting the mispositioning.

[0048] In one specific embodiment, the magnetic properties of the first magnetic elements A1 of any adjacent protrusions A are opposite, and the magnetic properties of the second magnetic elements B1 of any adjacent recesses B are opposite. For example, please refer to Figure 2 or Figure 3The magnetic property of the first magnetic attraction element A1 facing the side of the recess B of each protrusion A from left to right can be set as N pole, S pole, N pole, S pole, N pole respectively, while the magnetic property of the second magnetic attraction element B1 facing the side of the protrusion A of each recess B from left to right can be set as S pole, N pole, S pole, N pole, S pole respectively. Of course, the above examples are only a few possible examples of the magnetic property setting of the first magnetic attraction element A1 and the second magnetic attraction element B1 in the actual application, and do not limit other possible setting methods. The above method reverses the magnetic property of the first magnetic attraction element A1 of adjacent protrusions A, and reverses the magnetic property of the second magnetic attraction element B1 of adjacent recesses B, so that the first magnetic attraction element A1 and the second magnetic attraction element B1 can be sequentially arranged, thereby reducing the complexity of assembling the magnetic attraction elements to a certain extent.

[0049] In one specific implementation scenario, the magnetic property of the first magnetic attraction element A1 of part of the adjacent protrusions A is opposite, while the magnetic property of the first magnetic attraction element A1 of part of the adjacent protrusions A is the same, and the magnetic property of the second magnetic attraction element B1 of part of the adjacent recesses B is opposite, while the magnetic property of the second magnetic attraction element B1 of part of the adjacent recesses B is the same. For example, please refer to Figure 2 or Figure 3 The magnetic property of the first magnetic attraction element A1 facing the side of the recess B of each protrusion A from left to right can be set as N pole, N pole, S pole, S pole, N pole respectively, while the magnetic property of the second magnetic attraction element B1 facing the side of the protrusion A of each recess B from left to right can be set as S pole, N pole, S pole, N pole, S pole respectively. Of course, the above examples are only a few possible examples of the magnetic property setting of the first magnetic attraction element A1 and the second magnetic attraction element B1 in the actual application, and do not limit other possible setting methods. The above method reverses the magnetic property of the first magnetic attraction element A1 of adjacent protrusions A, and reverses the magnetic property of the second magnetic attraction element B1 of adjacent recesses B, so that the first magnetic attraction element A1 and the second magnetic attraction element B1 can be sequentially arranged, thereby reducing the complexity of assembling the magnetic attraction elements to a certain extent.

[0050] The above scheme, the large screen accessory device 10 includes a multimedia module 11, a first communication module 12 and a shell 13, the multimedia module 11 is used to collect and / or output multimedia signals from the outside, the first communication module 12 is electrically connected to the multimedia module 11, and is used to be at least in communication connection with the second communication module arranged in the large screen device 20, to transmit multimedia signals with the large screen device 20, the shell 13 is formed with a containing cavity for accommodating the multimedia module 11 and the first communication module 12 inside, the shell 13 includes two end faces 131 and 132 oppositely arranged, one of the end faces 132 is formed with a plurality of convex portions A, which is used to match and align with the recess B arranged at the top of the large screen device 20, the first magnetic element A1 is arranged at the convex portion A, which is used to be magnetically connected with the second magnetic element B1 arranged at the recess B, so as to realize the detachable connection of the large screen accessory device 10 and the large screen device 20, on the one hand, the large screen accessory device 10 includes the multimedia module 11 and the first communication module 12 which are electrically connected to each other, and the first communication module 12 is in communication connection with the second communication module in the large screen device 20, so as to ensure that the large screen device 20 supports diversified functions through the large screen accessory device 10, on the other hand, since the large screen device 20 supports diversified functions through the large screen accessory device 10, when maintaining the related module devices supporting diversified functions, the possibility of disassembling the large screen device 20 itself can be reduced as much as possible and only the large screen accessory device 10 can be maintained, and since the large screen accessory device 10 is detachably connected to the large screen device 20, the maintenance cost can be reduced as much as possible, on the other hand, the large screen accessory device 10 can be relatively freely configured with different specifications of the multimedia module 11 compared with the large screen device 20, so that different specifications of the large screen accessory device 10 can be selected according to application needs and detachably connected to the large screen device 20, so that different scenes can be considered. Therefore, under the premise of meeting the diversified functions of the large screen device 20, the maintenance cost can be reduced as much as possible, and different scenes can be considered.

[0051] The above description of each embodiment tends to emphasize the differences between each embodiment, and the same or similar parts can be referred to each other, and will not be described herein for the sake of brevity.

[0052] In several embodiments provided in the present application, it should be understood that the disclosed method and device can be implemented in other ways. For example, the above-described device implementation is only schematic, for example, the division of the module or unit is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed each other can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0053] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment.

[0054] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

Claims

1. A large-screen accessory device, characterized in that: include: Multimedia module, used for collecting and / or outputting multimedia signals from the outside; a first communication module electrically connected to the multimedia module and configured to communicate with at least a second communication module provided on the large-screen device to transmit the multimedia signal to the large-screen device; The shell has an accommodating cavity formed inside for accommodating the multimedia module and the first communication module. One of the two end faces of the shell is formed with a plurality of protrusions for matching and aligning with the recessed portion provided at the top of the large-screen device. The protrusion is provided with a first magnetic element for magnetically connecting with the second magnetic element provided at the recessed portion to achieve a detachable connection between the large-screen accessory device and the large-screen device.

2. The large-screen accessory device according to claim 1, characterized in that: The first magnetic elements respectively arranged at each of the protrusions have the same magnetism, and the second magnetic elements respectively arranged at each of the recesses have the same magnetism. The magnetism of any first magnetic element is opposite to that of any second magnetic element.

3. The large-screen accessory device according to claim 1, characterized in that: The magnetism of the first magnetic elements respectively arranged at each of the raised portions is not completely the same, and the magnetism of the second magnetic elements respectively arranged at each of the recessed portions is not completely the same. The magnetism of the first magnetic elements and the second magnetic elements respectively arranged at any set of matching raised portions and recessed portions is opposite.

4. The large-screen accessory device according to claim 3, characterized in that: The magnetism of the first magnetic elements at adjacent protrusions is opposite, and the magnetism of the second magnetic elements at adjacent recesses is opposite.

5. The large-screen accessory device according to claim 1, characterized in that: The large-screen accessory device further includes a first communication seat, the first communication module includes a first communication interface, the first communication interface is provided on the first communication seat, the first communication seat is rotatably connected to the end surface of the shell provided with the protrusion, and the top of the large-screen device is further provided with a second communication seat, the second communication module includes a second communication interface that matches the first communication interface, and the second communication interface is provided on the second communication seat; Wherein, when the large-screen accessory is loaded on the large-screen device, the first communication seat is rotated away from the end face provided with the protrusion so that the first communication interface and the second communication interface are connected in alignment, or when the large-screen accessory is disassembled from the large-screen device, the first communication seat is rotated toward the end face provided with the protrusion.

6. The large-screen accessory device according to claim 1, characterized in that: The first communication module is a wireless communication module, and the second communication module is a wireless communication module that uses the same communication protocol as the first communication module.

7. The large-screen accessory device according to claim 1, characterized in that: The large-screen accessory device also includes a battery and a charging circuit electrically connected to each other. The multimedia module and the first communication module are at least electrically connected to the battery respectively. The charging circuit is used to be electrically connected to an external power source to charge the battery.

8. The large-screen accessory device according to claim 1, characterized in that: The first magnetic element is disposed inside the raised portion; And / or, the protrusion is a hollow structure, and the protrusion and the accommodating cavity are communicated with each other.

9. The large-screen accessory device according to claim 1, characterized in that: The housing further comprises a media end face located between the two end faces. The media end face is provided with a plurality of holes for the multimedia module to collect and / or output multimedia signals from the outside.

10. The large-screen accessory device according to any one of claims 1 to 9, characterized in that: The multimedia module includes a microphone array; And / or, the multimedia module includes a camera module; And / or, the multimedia module includes a speaker module.

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