Audio and video terminal

Abstract

The utility model discloses an audio and video terminal, which comprises a shell, a heat dissipation structure, a circuit board assembly and a lens assembly, and is characterized in that the heat dissipation structure is located in the shell and is detachably connected with the shell; the circuit board assembly is located in the shell and comprises a main control board, an interface board, a Mic board and an antenna board, and the main control board, the interface board, the Mic board and the antenna board are all fixedly connected with the heat dissipation structure; the lens assembly is at least partially located in the shell and fixedly connected with the heat dissipation structure. Through the arrangement, the assembly efficiency and the maintenance efficiency of the circuit board assembly can be improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and in particular, to an audio-video terminal. Background Art

[0002] In the prior art, audio-video terminals are generally assembled by a hierarchical and decentralized installation method. Specifically, existing audio-video terminals assemble multiple related components such as a main board, a Mic (microphone) board, and an interface board one by one according to a hierarchical relationship. During the assembly process of the above components, one component needs to be assembled before assembling another component. And when disassembly and repair are required, the peripheral structures of the above components need to be disassembled before the disassembly and repair of the above components can be carried out, thus reducing the assembly efficiency and repair efficiency of the above components. Summary of the Utility Model

[0003] In order to solve the deficiencies of the prior art, the purpose of this application is to provide an audio-video terminal, which can improve the assembly efficiency and repair efficiency of circuit board components.

[0004] To achieve the above purpose, the following technical solutions are adopted in this application:

[0005] An audio-video terminal, which includes a housing, a heat dissipation structure, a circuit board assembly, and a lens assembly. The heat dissipation structure is located inside the housing and is detachably connected to the housing; the circuit board assembly is located inside the housing, and the circuit board assembly includes a main control board, an interface board, a Mic board, and an antenna board. The main control board, the interface board, the Mic board, and the antenna board are all fixedly connected to the heat dissipation structure; at least part of the lens assembly is located inside the housing and is fixedly connected to the heat dissipation structure.

[0006] Further, the heat dissipation structure is divided into a first installation area and a second installation area, and the first installation area and the second installation area are distributed along the left-right direction of the audio-video terminal; the main control board, the interface board, the antenna board, and at least part of the Mic board are all installed in the first installation area, and the lens assembly is installed in the second installation area.

[0007] Further, the main control board is located above the heat dissipation structure, the interface board is located below the heat dissipation structure, the Mic board and the antenna board are located in front of the heat dissipation structure, and the Mic board is located above the antenna board; the lens assembly is located in front of the heat dissipation structure; the audio-video terminal further includes a speaker assembly, and the speaker assembly and the heat dissipation structure are distributed along the left-right direction of the audio-video terminal; along the left-right direction of the audio-video terminal, the lens assembly is located between the speaker assembly and the circuit board assembly.

[0008] Further, the heat dissipation structure is provided with a first fixing portion and a first positioning post for positioning the main control board. The first fixing portion and the first positioning post are located above the heat dissipation structure, and the first fixing portion is fixedly connected to the main control board; the first positioning post is located on the first fixing portion; the heat dissipation structure is provided with a second fixing portion and a second positioning post for positioning the interface board. The second fixing portion and the second positioning post are located below the heat dissipation structure, and the second fixing portion is fixedly connected to the interface board; the second positioning post is located on the second fixing portion.

[0009] Further, the heat dissipation structure is provided with a third fixing portion, a fourth fixing portion, a third positioning post for positioning the Mic board, and a fourth positioning post for positioning the antenna board. The third fixing portion and the fourth fixing portion are located in front of the heat dissipation structure. The third fixing portion is fixedly connected to the Mic board, and the fourth fixing portion is fixedly connected to the antenna board; the third fixing portion is located above the fourth fixing portion; the third positioning post is located on the third fixing portion; the fourth positioning post is located on the fourth fixing portion.

[0010] Further, the heat dissipation structure is provided with a fifth fixing portion and a fifth positioning post for positioning the lens assembly. The fifth fixing portion and the fifth positioning post are located in front of the heat dissipation structure, and the fifth fixing portion is fixedly connected to the lens assembly; the lens assembly includes a mounting bracket fixedly connected to the fifth fixing portion, a lens board mounted on the mounting bracket, and a privacy cover mounted on the mounting bracket. The mounting bracket cooperates with the fifth positioning post for positioning. The lens board is located behind the mounting bracket, and the privacy cover is located in front of the mounting bracket; at least part of the mounting bracket extends backward to form an extension portion. The extension portion is located above the mounting bracket. The heat dissipation structure is further provided with a sixth fixing portion. The sixth fixing portion is located above the heat dissipation structure, and the extension portion is fixedly connected to the sixth fixing portion.

[0011] Further, at least part of the mounting bracket extends forward to form a first clamping portion and a second clamping portion. At least part of the Mic board extends to the front of the mounting bracket. The part of the Mic board extending to the front of the mounting bracket is an expansion portion. The expansion portion is at least partially clamped with the first clamping portion and the second clamping portion; the first clamping portion is a first slot structure with an opening facing downward, and the second clamping portion is a second slot structure with an opening facing upward. The expansion portion is at least partially located in the first slot structure and the second slot structure.

[0012] Further, the heat dissipation structure is provided with a hollow portion. An antenna is provided on the antenna board. The projection of the antenna on the projection plane perpendicular to the front-rear direction of the audio-video terminal in the front-rear direction of the audio-video terminal is the antenna projection. The projection of the hollow portion on the projection plane in the front-rear direction of the audio-video terminal is the hollow projection. The antenna projection is located within the hollow projection.

[0013] Further, the housing includes a rear case and a front cover connected to the rear case, and the heat dissipation structure is detachably connected to the rear case; the audio-video terminal includes a heat dissipation sheet metal located inside the housing, the heat dissipation sheet metal is adhesively connected to the rear case, at least part of the heat dissipation sheet metal is located behind the speaker assembly, and at least part of the heat dissipation sheet metal is also located behind the heat dissipation structure, and heat can be conducted between the heat dissipation sheet metal and the heat dissipation structure.

[0014] Further, the audio-video terminal further includes a plurality of heat-conducting silicone pads, the plurality of heat-conducting silicone pads are adhesively connected to the heat dissipation structure, and the plurality of heat-conducting silicone pads are distributed in at least one of the rear, upper, and lower sides of the heat dissipation structure; at least one heat-conducting silicone pad is located between the heat dissipation structure and the main control board, and / or at least one heat-conducting silicone pad is located between the heat dissipation structure and the interface board, and / or at least one heat-conducting silicone pad is located between the heat dissipation structure and the housing; the heat dissipation structure is made of aluminum material.

[0015] The above audio-video terminal can directly connect the main control board, the interface board, the Mic board, and the antenna board to the heat dissipation structure, which is beneficial to improving the heat dissipation efficiency of the main control board, the interface board, the Mic board, and the antenna board; at the same time, the main control board, the interface board, the Mic board, and the antenna board can be integrated on the heat dissipation structure, so that the disassembly and assembly of the main control board, the interface board, the Mic board, and / or the antenna board 34 can be realized by the disassembly and assembly of the heat dissipation structure, without disassembling the main control board, the interface board, the Mic board, and / or the antenna board one by one, thereby improving the assembly efficiency and maintenance efficiency of the main control board, the interface board, the Mic board, and the antenna board. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the audio-video terminal provided by the embodiment of the present application.

[0017] Figure 2 It is an exploded view of the audio-video terminal provided by the embodiment of the present application.

[0018] Figure 3 It is an exploded view of a partial structure of the audio-video terminal provided by the embodiment of the present application.

[0019] Figure 4 It is a bottom view of the heat dissipation structure of the audio-video terminal provided by the embodiment of the present application.

[0020] Figure 5 For the embodiment of the present application Figure 3 Partial enlarged view at A.

[0021] Figure 6 For the embodiment of the present application Figure 3 Partial enlarged view at B.

[0022] Figure 7 It is an exploded view of the mounting bracket and the Mic board of the audio-video terminal provided by the embodiment of the present application. Detailed implementation manners

[0023] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the specific implementation manners of the present application will be clearly and completely described below with reference to the accompanying drawings in the implementation manners of the present application.

[0024] It should be noted that the "first", "second" and similar terms used in the description and claims of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the similar terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. "Multiple" or "several" means at least two. Unless otherwise indicated, the similar terms such as "front", "rear", "left", "right", "lower" and / or "upper" are only for convenience of description and are not limited to a position or a spatial orientation. The terms "include" or "comprise" and similar terms mean that the elements or objects appearing before "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The terms "connected" or "coupled" and similar terms are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

[0025] The singular forms of "a", "the" and "said" used in the description and claims of the present application are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] As Figure 1 shown, the present application provides an audio-video terminal 100, which can implement functions such as audio-video recording and audio-video playing, that is, the audio-video terminal 100 integrates the above functions. Among them, the audio-video terminal 100 can be used for meeting recording and the like.

[0027] In order to clearly illustrate the technical solutions of the present application, the front, rear, left, right, upper and lower are also defined as Figure 1 shown.

[0028] Specifically, the audio-visual terminal 100 includes a housing 11, a heat dissipation structure 12, a circuit board assembly 13, and a lens assembly 14. More specifically, the housing 11 serves as the basic framework of the audio-visual terminal 100 and is used to support the heat dissipation structure 12, the circuit board assembly 13, and the lens assembly 14. The heat dissipation structure 12 is located inside the housing 11 and connected to the housing 11, so that the heat dissipation structure 12 can be fixed to the housing 11. The circuit board assembly 13 is located inside the housing 11 and fixedly connected to the heat dissipation structure 12, so that the circuit board assembly 13 can dissipate heat through the heat dissipation structure 12. Moreover, the direct connection between the circuit board assembly 13 and the heat dissipation structure 12 is also beneficial to improving the heat dissipation efficiency of the circuit board assembly 13. The lens assembly 14 is at least partially located inside the housing 11 and fixedly connected to the heat dissipation structure 12, so that the lens assembly 14 can dissipate heat through the heat dissipation structure 12. Moreover, the direct connection between the lens assembly 14 and the heat dissipation structure 12 is also beneficial to improving the heat dissipation efficiency of the lens assembly 14. Among them, the heat dissipation structure 12 is detachably connected to the housing 11, which is convenient for the installation and disassembly of the heat dissipation structure 12 and the housing 11, thereby improving the assembly performance of the heat dissipation structure 12 and the assembly efficiency of the heat dissipation structure 12. Through the above settings, the circuit board assembly 13 and the lens assembly 14 can be integrated on the heat dissipation structure 12, so that the circuit board assembly 13 and the lens assembly 14 can be installed inside the housing 11 through the heat dissipation structure 12 at the same time, thereby improving the assembly efficiency of the circuit board assembly 13 and the lens assembly 14. In addition, through the above settings, when it is necessary to disassemble and assemble the circuit board assembly 13 and the lens assembly 14, for example, when repairing or replacing some structures of the circuit board assembly 13 and the lens assembly 14, the disassembly and assembly of the circuit board assembly 13 and the lens assembly 14 can be realized through the disassembly and assembly of the heat dissipation structure 12, so that it is not necessary to disassemble the circuit board assembly 13 and the lens assembly 14 one by one, thereby improving the maintenance convenience of the circuit board assembly 13 and the lens assembly 14. At the same time, the installation structure with the heat dissipation structure 12 as the core can also reduce the additional installation parts of the circuit board assembly 13 and the lens assembly 14, thereby simplifying the structure of the audio-visual terminal 100 and being beneficial to improving the structural compactness of the audio-visual terminal 100. Further, the installation structure with the heat dissipation structure 12 as the core can install the circuit board assembly 13 and the lens assembly 14 on the heat dissipation structure 12 at the same time, thereby further improving the assembly efficiency of the circuit board assembly 13 and the lens assembly 14.

[0029] In the present application, the heat dissipation structure 12 can be made of a material with good thermal conductivity. For example, the heat dissipation structure 12 can be made of aluminum material, so that while the heat dissipation structure 12 has good thermal conductivity, the mass of the heat dissipation structure 12 is relatively light, thereby realizing the lightweight of the heat dissipation structure 12. It should be noted that the heat dissipation structure 12 can also be other materials with thermal conductivity, and the present application does not make any restrictions.

[0030] In this application, the detachable connection between the heat dissipation structure 12 and the housing 11 can be achieved by bolt connection.

[0031] As Figure 2 shown, in this embodiment, the circuit board assembly 13 includes a main control board 131, an interface board 132, a Mic board 133, and an antenna board 134. The main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 are all fixedly connected to the heat dissipation structure 12. Through the above settings, the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 can dissipate heat through the heat dissipation structure 12, and the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 are all directly connected to the heat dissipation structure 12, which is also beneficial to improving the heat dissipation efficiency of the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134. In addition, through the above settings, the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 can be integrated on the heat dissipation structure 12, so that the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 can be installed in the housing 11 through the heat dissipation structure 12 at the same time, thereby improving the assembly efficiency of the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134. At the same time, when it is necessary to disassemble and assemble the main control board 131, the interface board 132, the Mic board 133, and / or the antenna board 134, for example, when repairing or replacing the main control board 131, the interface board 132, the Mic board 133, and / or the antenna board 134, the disassembly and assembly of the main control board 131, the interface board 132, the Mic board 133, and / or the antenna board 134 can be achieved through the disassembly and assembly of the heat dissipation structure 12, so that it is not necessary to disassemble the main control board 131, the interface board 132, the Mic board 133, and / or the antenna board 134 one by one, thereby improving the maintenance convenience of the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134, which is beneficial to improving the repair efficiency of the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134. Further, the installation structure with the heat dissipation structure 12 as the core can also reduce the additional installation parts of the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134, thereby simplifying the structure of the audio-video terminal 100, which is beneficial to improving the structural compactness of the audio-video terminal 100; and the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 can be installed on the heat dissipation structure 12 at the same time, so that the assembly efficiency of the main control board 131, the interface board 132, the Mic board 133, and the antenna board 134 can be further improved.

[0032] Exemplarily, the main control board 131 may be a Central Processing Unit (CPU), a general-purpose processor, a Network Processor (NP), a Digital Signal Processing (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The main control board 131 may also be any other device with processing functions, such as a circuit, a device, or a software module, which is not limited in this application.

[0033] Exemplarily, a plurality of interfaces for the audio-video terminal 100 to communicate with external devices are integrated on the interface board 132. It should be noted that the types of the plurality of interfaces on the interface board 132 can be adjusted according to actual needs, which is not limited in this application.

[0034] Exemplarily, the Mic board 133, i.e., the microphone circuit board, integrates a plurality of microphones, and the Mic board 133 is used to convert the sound signals outside the audio-video terminal 100 into electrical signals.

[0035] Exemplarily, a plurality of antennas 1341 are integrated on the antenna board 134.

[0036] As Figure 2 and Figure 3 shown, as an implementation manner, the heat dissipation structure 12 is divided into a first installation area 121 and a second installation area 122, and the first installation area 121 and the second installation area 122 are distributed along the left-right direction of the audio-video terminal 100. In this application, the first installation area 121 is located on the right side of the second installation area 122.

[0037] Specifically, the main control board 131, the interface board 132, the antenna board 134, and at least part of the Mic board 133 are all installed in the first installation area 121, and the lens assembly 14 is installed in the second installation area 122. That is, in this application, the circuit board assembly 13 is located on the right side of the lens assembly 14.

[0038] More specifically, the main control board 131 is located above the heat dissipation structure 12, and the interface board 132 is located below the heat dissipation structure 12. That is, the main control board 131 is located above the first installation area 121, and the interface board 132 is located below the first installation area 121. Through the above settings, the edges of the main control board 131 and the edges of the interface board 132 can be substantially overlapped in the up and down direction of the audio-video terminal 100. Also, since the two ends of the wire harness between the main control board 131 and the interface board 132 are respectively connected to the edges of the main control board 131 and the interface board 132, the above settings are beneficial to the connection of the wire harness between the main control board 131 and the interface board 132, and can shorten the wire harness between the main control board 131 and the interface board 132, thereby being beneficial to improving the structural compactness of the circuit board assembly 13.

[0039] More specifically, the Mic board 133 and the antenna board 134 are located in front of the heat dissipation structure 12, and the Mic board 133 is located above the antenna board 134. That is, the Mic board 133 and the antenna board 134 are located in front of the first installation area 121. Through the above settings, the Mic board 133 and the antenna board 134 can be arranged simultaneously in front of the heat dissipation structure 12, so as to save the layout space of the Mic board 133 and the antenna board 134, and further improve the structural compactness of the circuit board assembly 13 and the heat dissipation structure 12, which is beneficial to the integrated layout of the circuit board assembly 13 on the heat dissipation structure 12.

[0040] More specifically, the lens assembly 14 is located in front of the heat dissipation structure 12, that is, the lens assembly 14 is located in front of the second installation area 122. Among them, the shooting end of the lens assembly 14 faces the front of the audio-video terminal 100. Therefore, the above settings can facilitate the layout of the lens assembly 14 and can prevent the circuit board assembly 13 from interfering with the lens assembly 14, thereby being beneficial to the normal operation of the circuit board assembly 13 and the lens assembly 14.

[0041] In the present application, the audio-video terminal 100 further includes a speaker assembly 15. The speaker assembly 15 and the heat dissipation structure 12 are distributed along the left and right direction of the audio-video terminal 100, so that the speaker assembly 15 and the heat dissipation structure 12 can be respectively located on both sides of the audio-video terminal 100. In addition, the above settings can also enable the speaker assembly 15 and the heat dissipation structure 12 to effectively utilize the space inside the housing 11, so as to improve the utilization rate of the limited space inside the housing 11, thereby improving the structural compactness of the audio-video terminal 100. Further, the speaker assembly 15 and the heat dissipation structure 12 are separately arranged, which can prevent the vibration generated by the speaker assembly 15 from affecting the lens assembly 14 and the circuit board assembly 13 located on the heat dissipation structure 12, thereby improving the working stability of the lens assembly 14 and the circuit board assembly 13.

[0042] Meanwhile, the above settings enable the speaker assembly 15, the lens assembly 14 on the heat dissipation structure 12, and the circuit board assembly 13 to balance the center of gravity of the audio-video terminal 100. Specifically, in the left-right direction of the audio-video terminal 100, the lens assembly 14 is located between the speaker assembly 15 and the circuit board assembly 13. In this application, the speaker assembly 15 is located on the left side of the lens assembly 14, and the circuit board assembly 13 is located on the right side of the lens assembly 14. Through the above settings, the centering of the lens assembly 14 can be improved, that is, the lens assembly 14 can be located in the middle of the audio-video terminal 100, which is beneficial to the normal operation of the shooting end of the lens assembly 14. Among them, if the shooting end of the lens assembly 14 is not in the middle of the audio-video terminal 100, it will cause incomplete or unclear shooting of the lens assembly 14. Therefore, through the above settings, the working stability of the lens assembly 14 can be improved.

[0043] As an alternative implementation, the heat dissipation structure 12 is provided with a first fixing portion 1211 and a first positioning post 1212 for positioning the main control board 131. The first fixing portion 1211 and the first positioning post 1212 are located above the heat dissipation structure 12, that is, the first fixing portion 1211 and the first positioning post 1212 are located above the first installation area 121. Among them, the first fixing portion 1211 is fixedly connected to the main control board 131, so that the main control board 131 can be fixed to the heat dissipation structure 12 through the first fixing portion 1211.

[0044] Specifically, the first fixing portion 1211 can be set as a mounting post with internal threads. Mounting holes can be provided on the main control board 131. By passing a fastener through the mounting holes on the main control board 131 and threadedly connecting with the first fixing portion 1211, the fixation of the main control board 131 and the heat dissipation structure 12 is achieved. Positioning holes can be provided on the main control board 131. During the process of fixedly connecting the main control board 131 and the first fixing portion 1211, the first positioning post 1212 is located in the positioning holes on the main control board 131, thereby defining the relative positions of the main control board 131 and the first fixing portion 1211, which is beneficial to the subsequent fixation of the main control board 131 and the first fixing portion 1211.

[0045] In this embodiment, multiple first fixing portions 1211 are provided to improve the connection stability between the main control board 131 and the heat dissipation structure 12. To simplify the structure of the heat dissipation structure 12, the first positioning post 1212 is located on the first fixing portion 1211. It can be understood that multiple first positioning posts 1212 can be provided, and each first positioning post 1212 is provided on one first fixing portion 1211; or one first positioning post 1212 can be provided, and the first positioning post 1212 is provided on one first fixing portion 1211; or the number of the first positioning posts 1212 can be less than the number of the first fixing portions 1211, and this application does not make any restrictions.

[0046] It should be noted that the first positioning post 1212 can also be independently arranged on the heat dissipation structure 12 from the first fixing part 1211.

[0047] As Figure 2 and Figure 4 shown, as an alternative implementation, the heat dissipation structure 12 is provided with a second fixing part 1213 and a second positioning post 1214 for positioning the interface board 132. The second fixing part 1213 and the second positioning post 1214 are located below the heat dissipation structure 12, that is, the second fixing part 1213 and the second positioning post 1214 are located below the first installation area 121. Among them, the second fixing part 1213 is fixedly connected to the interface board 132, so that the interface board 132 can be fixed to the heat dissipation structure 12 through the second fixing part 1213.

[0048] Specifically, the second fixing part 1213 can be set as a mounting post with internal threads. The interface board 132 can be provided with mounting holes. A fastener passes through the mounting holes on the interface board 132 and is threadedly connected to the second fixing part 1213, so as to realize the fixation of the interface board 132 and the heat dissipation structure 12. The interface board 132 can be provided with positioning holes. During the process of fixedly connecting the interface board 132 and the second fixing part 1213, the second positioning post 1214 is located in the positioning holes on the interface board 132, so as to limit the relative positions of the interface board 132 and the second fixing part 1213, which is beneficial to the subsequent fixation of the interface board 132 and the second fixing part 1213.

[0049] In this embodiment, a plurality of second fixing parts 1213 are provided to improve the connection stability between the interface board 132 and the heat dissipation structure 12. To simplify the structure of the heat dissipation structure 12, the second positioning post 1214 is located on the second fixing part 1213. It can be understood that a plurality of second positioning posts 1214 can be provided, and each second positioning post 1214 is arranged on a second fixing part 1213; or one second positioning post 1214 can be provided, and the second positioning post 1214 is arranged on a second fixing part 1213; or the number of the second positioning posts 1214 can be less than the number of the second fixing parts 1213, and the present application does not make any restrictions.

[0050] It should be noted that the second positioning post 1214 can also be independently arranged on the heat dissipation structure 12 from the second fixing part 1213.

[0051] As Figure 2 and Figure 5As shown, as an alternative implementation, the heat dissipation structure 12 is provided with a third fixing portion 1215, a fourth fixing portion 1216, a third positioning post 1217 for positioning the Mic board 133, and a fourth positioning post 1218 for positioning the antenna board 134. The third fixing portion 1215 and the fourth fixing portion 1216 are located in front of the heat dissipation structure 12, that is, the third fixing portion 1215 and the fourth fixing portion 1216 are located in front of the first installation area 121. Among them, the third fixing portion 1215 is fixedly connected to the Mic board 133, and the fourth fixing portion 1216 is fixedly connected to the antenna board 134, so that the Mic board 133 can be fixed to the heat dissipation structure 12 through the third fixing portion 1215, and the antenna board 134 can be fixed to the heat dissipation structure 12 through the fourth fixing portion 1216.

[0052] Specifically, both the third fixing portion 1215 and the fourth fixing portion 1216 can be set as mounting posts with internal threads, and mounting holes can be provided on both the Mic board 133 and the antenna board 134. By passing a fastener through the mounting hole on the Mic board 133 and threadedly connecting it to the third fixing portion 1215, the fixation between the Mic board 133 and the heat dissipation structure 12 is achieved; by passing a fastener through the mounting hole on the antenna board 134 and threadedly connecting it to the fourth fixing portion 1216, the fixation between the antenna board 134 and the heat dissipation structure 12 is achieved.

[0053] Among them, positioning holes can be provided on both the Mic board 133 and the antenna board 134. During the process of fixedly connecting the Mic board 133 and the third fixing portion 1215, the third positioning post 1217 is located in the positioning hole on the Mic board 133, thereby defining the relative position between the Mic board 133 and the third fixing portion 1215, which is beneficial to the subsequent fixation of the Mic board 133 and the third fixing portion 1215. During the process of fixedly connecting the antenna board 134 and the fourth fixing portion 1216, the fourth positioning post 1218 is located in the positioning hole on the antenna board 134, thereby defining the relative position between the antenna board 134 and the fourth fixing portion 1216, which is beneficial to the subsequent fixation of the antenna board 134 and the fourth fixing portion 1216.

[0054] In this embodiment, a plurality of third fixing portions 1215 and fourth fixing portions 1216 are provided to facilitate improving the connection stability between the Mic board 133 and the heat dissipation structure 12 and to facilitate improving the connection stability between the antenna board 134 and the heat dissipation structure 12. To simplify the structure of the heat dissipation structure 12, the third positioning posts 1217 are located on the third fixing portions 1215, and the fourth positioning posts 1218 are located on the fourth fixing portions 1216. It can be understood that a plurality of third positioning posts 1217 may be provided, and each third positioning post 1217 is disposed on one third fixing portion 1215, a plurality of fourth positioning posts 1218 may be provided, and each fourth positioning post 1218 is disposed on one fourth fixing portion 1216; or one third positioning post 1217 may be provided, the third positioning post 1217 is disposed on one third fixing portion 1215, one fourth positioning post 1218 may be provided, and the fourth positioning post 1218 is disposed on one fourth fixing portion 1216; or the number of the third positioning posts 1217 may be less than the number of the third fixing portions 1215, and the number of the fourth positioning posts 1218 may be less than the number of the fourth fixing portions 1216, and the present application does not make any restrictions.

[0055] It should be noted that the third positioning posts 1217 may also be independently disposed on the heat dissipation structure 12 from the third fixing portions 1215, and the fourth positioning posts 1218 may also be independently disposed on the heat dissipation structure 12 from the fourth fixing portions 1216.

[0056] It should be noted that since there should be no metal objects in the front-back direction of the audio-video terminal 100 on the antenna 1341 provided on the antenna board 134, so as to prevent the antenna 1341 from being unable to work properly due to the influence of metal objects, the heat dissipation structure 12 of the present application is provided with a hollow portion 123. Define a projection plane 101 perpendicular to the front-back direction of the audio-video terminal 100 (refer to Figure 1 ), the projection of the antenna 1341 on the projection plane 101 along the front-back direction of the audio-video terminal 100 is the antenna projection, and the projection of the hollow portion 123 on the projection plane 101 along the front-back direction of the audio-video terminal 100 is the hollow projection, and the antenna projection is located within the hollow projection. Through the above settings, it can be ensured that the antenna 1341 will not be interfered by metal objects in the front-back direction of the audio-video terminal 100, so that the antenna 1341 can work properly.

[0057] In this application, since the hollow portion 123 is located at the lower part of the heat dissipation structure 12, the third fixing portion 1215 is located above the fourth fixing portion 1216, so that the Mic board 133 is located above the antenna board 134, thereby ensuring that the antenna 1341 on the antenna board 134 is not affected by metal objects. Among them, the hollow portion 123 being arranged at the lower part of the heat dissipation structure 12 can also enable the hollow portion 123 to avoid a plurality of interfaces on the interface board 132, which is beneficial to improving the structural compactness of the heat dissipation structure 12 and the circuit board assembly 13, and improving the space utilization rate of the audio-visual terminal 100.

[0058] As Figure 2 and Figure 6 shown, as an alternative implementation, the heat dissipation structure 12 is provided with a fifth fixing portion 1221 and a fifth positioning post 1222 for positioning the lens assembly 14. The fifth fixing portion 1221 and the fifth positioning post 1222 are located in front of the heat dissipation structure 12, that is, the fifth fixing portion 1221 and the fifth positioning post 1222 are located in front of the second installation area 122. Among them, the fifth fixing portion 1221 is fixedly connected to the lens assembly 14.

[0059] Specifically, the fifth fixing portion 1221 can be set as a mounting post with internal threads. The lens assembly 14 can be provided with a mounting hole. A fastener passes through the mounting hole on the lens assembly 14 and is threadedly connected to the fifth fixing portion 1221, thereby realizing the fixation of the lens assembly 14 and the heat dissipation structure 12. The lens assembly 14 can be provided with a positioning hole. During the process of the lens assembly 14 being fixedly connected to the fifth fixing portion 1221, the fifth positioning post 1222 is located in the positioning hole on the lens assembly 14, thereby defining the relative position of the lens assembly 14 and the fifth fixing portion 1221, which is beneficial to the subsequent fixation of the lens assembly 14 and the fifth fixing portion 1221.

[0060] In this embodiment, a plurality of fifth fixing portions 1221 are provided to improve the connection stability between the lens assembly 14 and the heat dissipation structure 12. To simplify the structure of the heat dissipation structure 12, the fifth positioning post 1222 is located on the fifth fixing portion 1221. It can be understood that a plurality of fifth positioning posts 1222 can be provided, and each fifth positioning post 1222 is arranged on one fifth fixing portion 1221; or one fifth positioning post 1222 can be provided, and the fifth positioning post 1222 is arranged on one fifth fixing portion 1221; or the number of the fifth positioning posts 1222 can be less than the number of the fifth fixing portions 1221, and this application does not make any restrictions.

[0061] As Figure 3 and Figure 6As shown, more specifically, the lens assembly 14 includes a mounting bracket 141, a lens board 142, and a privacy cover 143. The mounting bracket 141 is fixedly connected to the fifth fixing portion 1221, and the mounting bracket 141 cooperates with the fifth positioning post 1222 for positioning, so that the relative position between the mounting bracket 141 and the fifth fixing portion 1221 can be defined by the fifth positioning post 1222, facilitating the fixed connection between the mounting bracket 141 and the fifth fixing portion 1221, and improving the centering of the lens assembly 14, thereby improving the working stability of the lens assembly 14. The lens board 142 is installed on the mounting bracket 141, and the privacy cover 143 is installed on the mounting bracket 141, so that the mounting bracket 141 can support the lens board 142 and the privacy cover 143. Among them, a lens for shooting is provided on the lens board 142.

[0062] Furthermore, the lens board 142 is located behind the mounting bracket 141, and the privacy cover 143 is located in front of the mounting bracket 141.

[0063] Optionally, at least a part of the mounting bracket 141 extends backward to form an extension portion 1411, and the extension portion 1411 is located above the mounting bracket 141. The heat dissipation structure 12 is also provided with a sixth fixing portion 1223, and the sixth fixing portion 1223 is located above the heat dissipation structure 12, that is, the sixth fixing portion 1223 is located above the second installation area 122. The extension portion 1411 is fixedly connected to the sixth fixing portion 1223, thereby improving the connection stability between the mounting bracket 141 and the heat dissipation structure 12.

[0064] Exemplarily, the extension portion 1411 and the sixth fixing portion 1223 are connected by fasteners.

[0065] It should be noted that the fasteners in this application are all bolts.

[0066] As Figure 7 shown, as a realization manner, since the number of microphones on the Mic board 133 in this application is large, the first installation area 121 cannot meet the layout requirements of at least some of the microphones. Therefore, at least a part of the Mic board 133 extends to the front of the mounting bracket 141, that is, at least a part of the Mic board 133 extends to the front of the second installation area 122. Among them, the part of the Mic board 133 extending to the front of the mounting bracket 141 is an extension portion 1331. Since the extension portion 1331 needs to be fixed, at least a part of the mounting bracket 141 extends forward to form a first clamping portion 1412 and a second clamping portion 1413, and at least a part of the extension portion 1331 is clamped with the first clamping portion 1412 and the second clamping portion 1413, which is beneficial to the fixing of the extension portion 1331.

[0067] Specifically, the first clamping portion 1412 can be a first card slot structure with an opening facing downward, and the second clamping portion 1413 can be a second card slot structure with an opening facing upward. Through the cooperation of the first clamping portion 1412 and the second clamping portion 1413, at least part of the expansion portion 1331 can be stably located within the first card slot structure and the second card slot structure, thereby improving the connection stability between the expansion portion 1331 and the mounting bracket 141. It should be noted that the first card slot structure and the second card slot structure are only one implementation manner of the first clamping portion 1412 and the second clamping portion 1413, and the present application does not limit the structures of the first clamping portion 1412 and the second clamping portion 1413.

[0068] As Figure 1 and Figure 2 shown, as one implementation manner, the housing 11 includes a rear shell 111 and a front cover 112 connected to the rear shell 111, and the heat dissipation structure 12 is detachably connected to the rear shell 111. Among them, the rear shell 111 and the front cover 112 can be connected by bolts, and the heat dissipation structure 12 and the rear shell 111 can also be detachably connected by bolts.

[0069] Optionally, the audio-video terminal 100 includes a heat dissipation sheet metal 16 located inside the housing 11, and the heat dissipation sheet metal 16 is adhered to the rear shell 111. Among them, the heat dissipation sheet metal 16 and the rear shell 111 can be adhered by a thermally conductive double-sided tape, so as to facilitate the heat of the heat dissipation sheet metal 16 to be transferred to the rear shell 111 and then transferred to the outside through the rear shell 111.

[0070] Specifically, at least part of the heat dissipation sheet metal 16 is located behind the speaker assembly 15, and at least part of the heat dissipation sheet metal 16 is also located behind the heat dissipation structure 12. Heat can be conducted between the heat dissipation sheet metal 16 and the heat dissipation structure 12, so that the heat generated by the circuit board assembly 13 and the lens assembly 14 can be transferred to the heat dissipation sheet metal 16 through the heat dissipation structure 12. At the same time, since the heat dissipation sheet metal 16 is located behind the speaker assembly 15 and the heat dissipation structure 12, the heat of the heat dissipation structure 12 can be transferred to the rear of the speaker assembly 15 through the heat dissipation sheet metal 16. Thus, the heat on the heat dissipation sheet metal 16 can be transferred to the outside by using the rear shell 111 at the speaker assembly 15, so as to make full use of the heat exchange between the rear shell 111 and the outside through the heat dissipation sheet metal 16, thereby increasing the heat dissipation area of the audio-video terminal 100 and improving the heat dissipation efficiency of the audio-video terminal 100.

[0071] As Figure 2 and Figure 3As shown, as an implementation, the audio-video terminal 100 further includes a plurality of heat-conducting silicone pads 17. The plurality of heat-conducting silicone pads 17 are bonded to the heat dissipation structure 12, and the plurality of heat-conducting silicone pads 17 are distributed in at least one of the rear, upper, and lower sides of the heat dissipation structure 12. Among them, the heat dissipation structure 12 and the main control board 131 conduct heat through the heat-conducting silicone pad 17 located above the heat dissipation structure 12, so that the heat on the main control board 131 can be transferred to the heat dissipation structure 12 more quickly. At this time, at least one heat-conducting silicone pad 17 is located above the first installation area 121 and between the main control board 131 and the heat dissipation structure 12; the heat dissipation structure 12 and the interface board 132 conduct heat through the heat-conducting silicone pad 17 located below the heat dissipation structure 12, so that the heat on the interface board 132 can be transferred to the heat dissipation structure 12 more quickly. At this time, at least one heat-conducting silicone pad 17 is located below the first installation area 121 and between the interface board 132 and the heat dissipation structure 12; the heat dissipation structure 12 and the heat dissipation sheet metal 16 conduct heat through the heat-conducting silicone pad 17 located behind the heat dissipation structure 12, so that the heat on the heat dissipation structure 12 can be transferred to the heat dissipation sheet metal 16 more quickly. At this time, at least one heat-conducting silicone pad 17 is located behind the first installation area 121 and between the heat dissipation sheet metal 16 and the heat dissipation structure 12.

[0072] In addition, heat-conducting silicone pads 17 are also provided above and below the second installation area 122. At this time, the lower part of the heat dissipation structure 12 and the bottom of the housing 11 conduct heat through the heat-conducting silicone pad 17, and the upper part of the heat dissipation structure 12 and the top of the housing 11 conduct heat through the heat-conducting silicone pad 17, so that the heat on the heat dissipation structure 12 can be transferred to the housing 11 more quickly and then transferred to the outside. That is, at least one heat-conducting silicone pad 17 is located between the heat dissipation structure 12 and the housing 11. Further, when the speaker assembly 15 works, the speaker assembly 15 will vibrate. At this time, the heat-conducting silicone pad 17 located between the heat dissipation structure 12 and the housing 11 can also buffer the vibration generated by the speaker assembly 15, so that there is no rigid collision between the heat dissipation structure 12 and the housing 11, thereby reducing the wear between the heat dissipation structure 12 and the housing 11 and being beneficial to improving the service life of the heat dissipation structure 12 and the housing 11.

[0073] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of this application.

Claims

1. An audio and video terminal, characterized in that: The audio and video terminal comprises: case; A heat dissipation structure, the heat dissipation structure is located in the housing and is detachably connected to the housing; A circuit board assembly, the circuit board assembly is located in the housing, the circuit board assembly includes a main control board, an interface board, a Mic board and an antenna board, and the main control board, the interface board, the Mic board and the antenna board are all fixedly connected to the heat dissipation structure; A lens assembly, wherein the lens assembly is at least partially located in the housing and fixedly connected to the heat dissipation structure.

2. The audio and video terminal according to claim 1, characterized in that: The heat dissipation structure is divided into a first installation area and a second installation area, and the first installation area and the second installation area are distributed along the left and right directions of the audio and video terminal; The main control board, the interface board, the antenna board and at least a portion of the Mic board are all installed in the first installation area, and the lens assembly is installed in the second installation area.

3. The audio and video terminal according to claim 1, characterized in that: The main control board is located above the heat dissipation structure, the interface board is located below the heat dissipation structure, the Mic board and the antenna board are located in front of the heat dissipation structure, and the Mic board is located above the antenna board; The lens assembly is located in front of the heat dissipation structure; The audio and video terminal further includes a speaker assembly, and the speaker assembly and the heat dissipation structure are distributed along the left and right directions of the audio and video terminal; Along the left-right direction of the audio and video terminal, the lens assembly is located between the speaker assembly and the circuit board assembly.

4. The audio and video terminal according to claim 1, 2 or 3, characterized in that: The heat dissipation structure is provided with a first fixing portion and a first positioning column for positioning the main control board, the first fixing portion and the first positioning column are located above the heat dissipation structure, and the first fixing portion is fixedly connected to the main control board; The first positioning column is located on the first fixing portion; The heat dissipation structure is provided with a second fixing portion and a second positioning column for positioning the interface board, the second fixing portion and the second positioning column are located below the heat dissipation structure, and the second fixing portion is fixedly connected to the interface board; The second positioning column is located on the second fixing portion.

5. The audio and video terminal according to claim 1, 2 or 3, characterized in that: The heat dissipation structure is provided with a third fixing part, a fourth fixing part, a third positioning column for positioning the Mic board, and a fourth positioning column for positioning the antenna board, the third fixing part and the fourth fixing part are located in front of the heat dissipation structure, the third fixing part is fixedly connected to the Mic board, and the fourth fixing part is fixedly connected to the antenna board; The third fixing portion is located above the fourth fixing portion; The third positioning column is located on the third fixing portion; The fourth positioning column is located on the fourth fixing portion.

6. The audio and video terminal according to claim 1, 2 or 3, characterized in that: The heat dissipation structure is provided with a fifth fixing portion and a fifth positioning column for positioning the lens assembly, the fifth fixing portion and the fifth positioning column are located in front of the heat dissipation structure, and the fifth fixing portion is fixedly connected to the lens assembly; The lens assembly comprises a mounting bracket fixedly connected to the fifth fixing portion, a lens plate mounted on the mounting bracket, and a privacy cover mounted on the mounting bracket, wherein the mounting bracket cooperates with the fifth positioning column for positioning, the lens plate is located behind the mounting bracket, and the privacy cover is located in front of the mounting bracket; The mounting bracket at least partially extends backward to form an extension portion, and the extension portion is located above the mounting bracket. The heat dissipation structure is also provided with a sixth fixing portion, and the sixth fixing portion is located above the heat dissipation structure. The extension portion is fixedly connected to the sixth fixing portion.

7. The audio and video terminal according to claim 6, characterized in that: The mounting bracket at least partially extends forward to form a first clamping portion and a second clamping portion, the Mic board at least partially extends to the front of the mounting bracket, the portion of the Mic board extending to the front of the mounting bracket is an expansion portion, and the expansion portion is at least partially clamped with the first clamping portion and the second clamping portion; The first clamping portion is a first clamping slot structure with an opening facing downward, the second clamping portion is a second clamping slot structure with an opening facing upward, and the expansion portion is at least partially located in the first clamping slot structure and the second clamping slot structure.

8. The audio and video terminal according to claim 1, characterized in that: The heat dissipation structure is provided with a hollow portion, and an antenna is provided on the antenna board. The projection of the antenna along the front-to-back direction of the audio and video terminal on a projection plane perpendicular to the front-to-back direction of the audio and video terminal is an antenna projection, and the projection of the hollow portion along the front-to-back direction of the audio and video terminal on the projection plane is a hollow projection, and the antenna projection is located within the hollow projection.

9. The audio and video terminal according to claim 3, characterized in that: The housing comprises a rear housing and a front cover connected to the rear housing, and the heat dissipation structure is detachably connected to the rear housing; The audio and video terminal includes a heat dissipation sheet metal located inside the shell, the heat dissipation sheet metal is bonded to the rear shell, the heat dissipation sheet metal is at least partially located behind the speaker assembly, and the heat dissipation sheet metal is also at least partially located behind the heat dissipation structure, and heat can be conducted between the heat dissipation sheet metal and the heat dissipation structure.

10. The audio and video terminal according to claim 3, characterized in that: The audio and video terminal further comprises a plurality of thermally conductive silicone pads, the plurality of thermally conductive silicone pads are bonded to the heat dissipation structure, and the plurality of thermally conductive silicone pads are distributed at least one of the rear, the top and the bottom of the heat dissipation structure; At least one of the thermally conductive silicone pads is located between the heat dissipation structure and the main control board, and / or, at least one of the thermally conductive silicone pads is located between the heat dissipation structure and the interface board, and / or, at least one of the thermally conductive silicone pads is located between the heat dissipation structure and the housing; The heat dissipation structure is made of aluminum material.

Images