Microphone assembly and display device

Abstract

The utility model provides a microphone assembly and a display device. The microphone assembly is used for the display equipment with a mounting part, the mounting part is provided with an accommodating cavity, and the microphone assembly comprises a microphone circuit board which is arranged in the accommodating cavity and is provided with a pickup unit; the support comprises a main mounting plate and a connecting part connected with the main mounting plate, and the connecting part is used for being connected with the mounting part; the microphone circuit board is connected to one side of the main installation plate, a sealing layer is arranged between the microphone circuit board and the main installation plate, a protruding part is arranged on the other side of the main installation plate, the support is provided with a first pickup hole, the first pickup hole penetrates through the main installation plate and the protruding part, the pickup unit is opposite to and communicated with the first pickup hole, and the installation part is provided with a second pickup hole. The second pickup hole enables the accommodation cavity to be communicated with the outside, and at least part of the projection part extends into the second pickup hole. When the microphone assembly is installed, the problem that the extrusion degree of the foam is not consistent is solved. Therefore, the pickup effect of the microphone assembly can be improved.

Description

Technical Field

[0001] This application relates to the field of sound pickup device technology, and in particular to a microphone assembly and display device. Background Technology

[0002] Typically, display devices are equipped with a microphone circuit board for sound pickup, which has multiple pickup units. In this case, the mounting part of the display device (such as the device housing or frame) is usually provided with a receiving cavity, in which the microphone circuit board is located. At the same time, the mounting part is provided with a pickup hole communicating with the receiving cavity, thereby achieving a hidden setting of the microphone circuit board to ensure the simplicity of the display device's appearance.

[0003] In related technologies, during the assembly of a display device, foam is placed between the microphone circuit board and the inner wall of the housing cavity. Then, a bracket locked to the mounting part presses the microphone circuit board firmly against the inner wall of the housing cavity, aligning the pickup unit with the pickup hole. After the microphone circuit board is installed, it compresses the foam, which ensures airtightness between the microphone circuit board and the inner wall of the housing cavity, thereby guaranteeing sound pickup performance.

[0004] However, the foam around the different pickup holes inside the cavity and the microphone circuit board may be compressed to varying degrees, which can lead to differences in airtightness at different pickup holes and thus affect the sound pickup effect. Utility Model Content

[0005] This application provides a microphone assembly designed to improve the sound pickup performance of the microphone assembly.

[0006] The specific technical solution is as follows:

[0007] An embodiment of the first aspect of this application provides a microphone assembly for a display device having a mounting portion, the mounting portion having a receiving cavity, the microphone assembly comprising: a microphone circuit board disposed in the receiving cavity, the microphone circuit board having a pickup unit; a bracket including a main mounting plate and a connecting portion connected to the main mounting plate, the connecting portion being used to connect to the mounting portion; the microphone circuit board being connected to one side of the main mounting plate, a sealing layer being provided between the microphone circuit board and the main mounting plate, a protrusion being provided on the other side of the main mounting plate, the bracket having a first pickup hole penetrating the main mounting plate and the protrusion, the pickup unit being opposite to and communicating with the first pickup hole, the mounting portion having a second pickup hole communicating the receiving cavity with the outside, the protrusion being configured to at least partially extend into the second pickup hole.

[0008] In this embodiment of the microphone assembly, the microphone circuit board is connected to one side of the main mounting plate of the bracket, and a protrusion is provided on the other side of the main mounting plate. The first pickup hole of the bracket passes through the main mounting plate and the protrusion. When the microphone assembly is installed on the mounting part of the display device, the protrusion of the bracket at least partially extends into the second pickup hole of the mounting part of the display device. Compared with the installation method in related technologies, the microphone circuit board is no longer subjected to top pressure, which ensures that the microphone circuit board has good flatness. In addition, since the protrusion at least partially extends into the second pickup hole of the mounting part of the display device, external sound is directly received by the pickup unit through the first pickup hole, thus eliminating the need for foam between the main mounting plate and the mounting part. In summary, the microphone assembly in this embodiment ensures good flatness of the microphone circuit board during installation and eliminates the need for foam between the main mounting plate and the mounting part, avoiding the problem of inconsistent foam compression. Therefore, the pickup effect of the microphone assembly can be improved.

[0009] In some embodiments, an adhesive layer is provided on the side of the main mounting plate away from the microphone circuit board, the adhesive layer being used to connect to the mounting portion.

[0010] The microphone assembly can be fixed to the mounting part by connecting the bracket's connecting part and the mounting part. Furthermore, the main mounting plate of the bracket is connected to the mounting part via an adhesive layer. This improves the connection stability between the bracket and the mounting part, thus ensuring the stability of the microphone assembly's sound pickup performance. On the other hand, the adhesive layer provides cushioning to reduce vibration transmission between the bracket and the mounting part, further contributing to the stability of the sound pickup performance.

[0011] In some of these embodiments, the adhesive layer is double-sided tape.

[0012] Using double-sided tape to bond the main mounting plate and the mounting part can improve the assembly efficiency of the microphone assembly and the mounting part, and also save costs.

[0013] In some of these embodiments, the sealing layer is double-sided adhesive.

[0014] Using double-sided adhesive to bond the microphone circuit board to the main mounting plate ensures a tight seal between the two components and allows for screwless assembly. This simplifies the assembly process and improves the efficiency of microphone assembly.

[0015] In some embodiments, the microphone circuit board is provided with a positioning hole, and the main mounting plate is provided with a positioning post on the side near the microphone circuit board that is adapted to the positioning hole.

[0016] This setup allows for more precise positioning of the microphone circuit board during assembly with the bracket, thereby improving the positional accuracy between the two and ultimately ensuring better sound pickup.

[0017] In some embodiments, the connecting portion includes: a first connecting plate, one end of which is connected to the main mounting plate; a second connecting plate, the other end of which is connected to the first connecting plate, and the second connecting plate is parallel to the main mounting plate; and a latch, which is disposed on the second connecting plate and is used to engage with the mounting portion.

[0018] The mounting section includes a receiving cavity, within which the microphone circuit board is housed. This provides protection for the microphone circuit board and its pickup unit. The first connecting plate and the main mounting plate can be angled, with the second connecting plate located at the end of the first connecting plate furthest from the main mounting plate. This extension of the first connecting plate allows the second connecting plate to be positioned outside the receiving cavity. Furthermore, the second connecting plate is parallel to the main mounting plate, and a latch is positioned on the second connecting plate, ensuring that the latch's engagement point with the mounting section is outside the receiving cavity. This facilitates alignment of the latch with the mounting holes during microphone assembly, reducing assembly difficulty and improving efficiency.

[0019] In some embodiments, the bracket further includes a support plate connected to the main mounting plate and also connected to the connecting portion, the support plate being perpendicular to the main mounting plate.

[0020] The support plate strengthens the main mounting plate, enhancing its structural strength and rigidity. This prevents structural damage and deformation, ensuring the microphone circuit board connected to the main mounting plate remains flat and thus maintains optimal sound pickup.

[0021] In some embodiments, the support plate is provided with cable routing holes for the microphone circuit board cables to pass through. This facilitates cable routing.

[0022] In some embodiments, the bracket further includes reinforcing ribs connected to the support plate and also connected to the connecting portion.

[0023] By adding reinforcing ribs, the connection strength between the support plate and the connecting part can be improved, which helps to ensure the overall structural stability of the support.

[0024] In some embodiments, the number of protrusions is the same as the number of the first pickup holes, and each protrusion has a corresponding first pickup hole.

[0025] In some embodiments, the number of protrusions is less than the number of first pickup holes, and each protrusion is provided with two or more first pickup holes.

[0026] In some embodiments, the pickup unit is located on the side of the wind circuit board away from the main mounting plate, and the microphone circuit board has a third pickup hole, which is opposite to the pickup unit and is opposite to and connected to the first pickup hole.

[0027] To maintain a flat microphone circuit board, the pickup unit can be positioned on the side of the microphone circuit board away from the main mounting plate. In this case, a third pickup hole can be provided on the microphone circuit board. This allows external sounds to be received by the pickup unit through both the first and third pickup holes, thus improving both the flatness of the microphone circuit board and the pickup effect.

[0028] In some embodiments, the distance from the end of the third pickup hole near the pickup unit to the end of the first pickup hole away from the pickup unit is L1, and the depth of the first pickup hole is L2, wherein L2 ≥ 1 / 2L1.

[0029] Under the above conditions, the sound pickup effect is significantly improved.

[0030] In some embodiments, the diameter of the first pickup hole gradually increases from the end closer to the microphone circuit board to the end farther away from the microphone circuit board.

[0031] That is, the diameter of the first pickup hole closer to the user is larger than the diameter of the end farther from the user. This increases the area for picking up the user's voice signal, thereby improving the efficiency of voice signal pickup.

[0032] An embodiment of the second aspect of this application provides a display device, the display device comprising: a mounting portion having a receiving cavity, the mounting portion having a second pickup hole communicating with the receiving cavity; and a microphone assembly as described in any of the embodiments of the first aspect above, wherein the microphone circuit board and the main mounting plate are both located within the receiving cavity, the bracket is connected to the mounting portion, and at least a portion of the protrusion is located within the second pickup hole.

[0033] In the display device of this application embodiment, the microphone assembly, during installation, ensures good flatness of the microphone circuit board and eliminates the need for foam between the main mounting plate and the mounting part, thus avoiding the problem of inconsistent foam compression. Therefore, the sound pickup effect of the microphone assembly can be improved.

[0034] In this embodiment of the display device, the microphone circuit board of the microphone assembly is connected to one side of the main mounting plate of the bracket. A protrusion is provided on the other side of the main mounting plate, and the first pickup hole of the bracket passes through the main mounting plate and the protrusion. When the microphone assembly is mounted on the mounting part of the display device, the protrusion of the bracket at least partially extends into the second pickup hole of the mounting part of the display device. Compared with the mounting method in related technologies, the microphone circuit board is no longer subjected to pressure, thus ensuring good flatness of the microphone circuit board. Furthermore, since the protrusion at least partially extends into the second pickup hole of the mounting part of the display device, external sound is directly received by the pickup unit through the first pickup hole, eliminating the need for foam between the main mounting plate and the mounting part.

[0035] Therefore, during microphone assembly installation, the microphone circuit board can be ensured to have good flatness, and there is no need to place foam between the main mounting plate and the mounting part, thus avoiding the problem of inconsistent foam compression. This improves the microphone assembly's sound pickup performance.

[0036] In some embodiments, the second pickup hole is a conical hole, and the protrusion is a frustum structure adapted to the conical hole.

[0037] The second pickup hole is tapered, allowing the protrusion to more easily enter during assembly of the bracket and mounting part, thus improving assembly efficiency. Furthermore, the protrusion employs a frustum-shaped structure to match the tapered hole, preventing noticeable gaps between the protrusion and the hole wall. This enhances aesthetics and avoids dust accumulation caused by such gaps. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a microphone assembly provided in one embodiment of this application;

[0039] Figure 2 A front view of a microphone assembly provided in an embodiment of this application;

[0040] Figure 3 This is a schematic diagram of the structure of a bracket provided in one embodiment of this application;

[0041] Figure 4A bottom view of a bracket provided in an embodiment of this application;

[0042] Figure 5 for Figure 4 Schematic diagram of section AA;

[0043] Figure 6 This is a schematic diagram of the microphone assembly in another embodiment of this application.

[0044] Figure 7 A schematic diagram of the structure of a mounting portion equipped with a microphone assembly provided in an embodiment of this application;

[0045] Figure 8 A bottom view of a mounting portion equipped with a microphone assembly provided in an embodiment of this application;

[0046] Figure 9 for Figure 8 Schematic diagram of the BB section;

[0047] Figure 10 for Figure 9 An enlarged schematic diagram of section C.

[0048] Explanation of reference numerals in the attached figures:

[0049] 10. Microphone assembly;

[0050] 100. Microphone circuit board; 110. Sound pickup unit; 101. Third sound pickup hole; 102. Positioning hole;

[0051] 200, bracket; 210, main mounting plate; 211, protrusion; 212, positioning post; 220, connecting part; 221, first connecting plate; 222, second connecting plate; 223, buckle; 230, first pickup hole; 240, support plate; 241, wire through hole; 250, reinforcing rib;

[0052] 20. Mounting section; 21. Second pickup hole; 22. Receiving cavity. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0054] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] As described in the background section, in the assembly of related display devices, foam is placed between the microphone circuit board and the mounting portion (the inner wall of the receiving cavity). Then, a bracket locked to the mounting portion presses the microphone circuit board against the inner wall of the receiving cavity, aligning the pickup unit with the pickup hole. After the microphone circuit board is installed, it compresses the foam, which ensures airtightness between the microphone circuit board and the mounting portion, thereby guaranteeing sound pickup performance.

[0058] However, the foam at different pickup holes is prone to uneven compression, which can lead to differences in airtightness at different pickup holes, thus affecting the sound pickup effect.

[0059] The applicant conducted an in-depth study on the reasons for the differences in airtightness at different microphone holes. The investigation revealed that the primary cause lies in the ease with which the support frame can deform during manufacturing. This uneven pressure on the microphone circuit board when the plastic support frame presses against it leads to inconsistent stress, resulting in poor flatness of the circuit board. This reduced flatness also causes inconsistent compression of the foam at different microphone holes, thus creating the differences in airtightness.

[0060] Based on the above, the applicant proposed the technical solution in this application embodiment. Specifically, the original method of using a plastic bracket to press against the microphone circuit board has been eliminated. Instead, the microphone circuit board is connected to one side of the main mounting plate of the bracket, and a protrusion is provided on the other side of the main mounting plate. The first pickup hole of the bracket passes through the main mounting plate and the protrusion. During installation, the protrusion of the bracket at least partially extends into the second pickup hole of the mounting part of the display device.

[0061] This design eliminates the pressure applied to the microphone circuit board, ensuring its flatness. Furthermore, the protrusion extends at least partially into the second pickup hole in the mounting portion of the display device. This allows external sound to be received directly by the pickup unit through the first pickup hole, eliminating the need for foam between the main mounting plate and the mounting portion, and avoiding issues related to inconsistent foam compression. This improves sound pickup performance.

[0062] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0063] This application provides a microphone assembly, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5As shown, the microphone assembly 10 is used in a display device having a mounting portion 20. The mounting portion 20 has a receiving cavity 22. The microphone assembly 10 includes a microphone circuit board 100 and a bracket 200. The microphone circuit board 100 is disposed in the receiving cavity 22 and has a pickup unit 110. The bracket 200 includes a main mounting plate 210 and a connecting portion 220 connected to the main mounting plate 210 for connecting to the mounting portion 20 of the display device. The microphone circuit board 100 is connected to one side of the main mounting plate 210, and a sealing layer (not shown) is provided between the microphone circuit board 100 and the main mounting plate 210. A protrusion 211 is provided on the other side of the main mounting plate 210. The bracket 200 has a first pickup hole 230 that penetrates the main mounting plate 210 and the protrusion 211. The pickup unit 110 is opposite to and communicates with the first pickup hole 230. The mounting portion 20 has a second pickup hole 21 (see reference). Figure 9 The second pickup hole 21 connects the receiving cavity 22 to the outside, and the protrusion 211 is configured to extend at least partially into the second pickup hole 21.

[0064] It is understandable that the pickup unit 110 and the first pickup hole 230 are opposite to and connected to each other, and the pickup unit 110 can be set perpendicular to the axis of the first pickup hole 230; the first pickup hole 230 and the second pickup hole 21 are set coaxially. In addition, the sealing layer is used to keep the microphone circuit board 100 and the main mounting plate 210 sealed to ensure the sound pickup effect.

[0065] The mounting part 20 can be the frame, casing, or structural component fixedly connected to the casing of the display device.

[0066] It is understood that there can be multiple pickup units 110, that is, multiple pickup units 110 are provided on the microphone circuit board 100. There are also multiple first pickup holes 230, and the number of first pickup holes 230 is the same as the number of pickup units 110, so that there is a one-to-one correspondence between the pickup units 110 and the first pickup holes 230.

[0067] In this embodiment, the microphone assembly 10 has a microphone circuit board 100 connected to one side of the main mounting plate 210 of the bracket 200. The other side of the main mounting plate 210 has a protrusion 211. The first pickup hole 230 of the bracket 200 passes through the main mounting plate 210 and the protrusion 211. When the microphone assembly 10 is mounted on the mounting portion 20 of the display device, the protrusion 211 of the bracket 200 at least partially extends into the second pickup hole 21 of the mounting portion 20 of the display device. Compared with the mounting methods in related technologies, the microphone circuit board 100 is no longer subjected to pressure, thus ensuring good flatness of the microphone circuit board 100.

[0068] In addition, since the protrusion 211 extends at least partially into the second sound pickup hole 21 of the mounting portion 20 of the display device, external sounds are directly received by the sound pickup unit 110 through the first sound pickup hole 230, thus eliminating the need to place foam between the main mounting plate 210 and the mounting portion 20.

[0069] In summary, during installation, the microphone assembly 10 in this embodiment ensures good flatness of the microphone circuit board 100 and eliminates the need for foam between the main mounting plate 210 and the mounting portion 20, thus avoiding the problem of inconsistent foam compression. Therefore, the sound pickup effect of the microphone assembly 10 can be improved.

[0070] like Figure 1 , Figure 10 As shown, in some embodiments, an adhesive layer (not shown) is provided on the side of the main mounting plate 210 away from the microphone circuit board 100, the adhesive layer being used to connect to the mounting portion 20 of the display device.

[0071] The microphone assembly 10 can be fixed to the mounting part 20 by connecting the connecting part 220 and the mounting part 20 of the bracket 200. Furthermore, the main mounting plate 210 of the bracket 200 is connected to the mounting part 20 via an adhesive layer. This improves the connection stability between the bracket 200 and the mounting part 20, thereby ensuring the stability of the microphone assembly 10's sound pickup performance. Additionally, the adhesive layer provides cushioning to reduce vibration transmission between the bracket 200 and the mounting part 20, further contributing to the stability of the sound pickup performance.

[0072] In one embodiment, the sealing layer is double-sided adhesive.

[0073] For double-sided tape, foam double-sided tape can be selected. Foam double-sided tape has a middle foam layer and adhesive layers on both sides of the foam layer. The foam layer is non-porous foam, which gives foam double-sided tape good sealing performance.

[0074] Using double-sided adhesive to bond the microphone circuit board 100 to the main mounting plate 210 can ensure the sealing between the microphone circuit board and the main mounting plate 210, and at the same time, it can achieve screwless assembly of the microphone circuit board 100 and the main mounting plate 210. The assembly process is relatively simple and helps to improve the assembly efficiency of the microphone assembly 10.

[0075] Of course, in some other embodiments, the microphone circuit board 100 and the main mounting plate 210 can also be connected by screws, rivets, etc.

[0076] In one embodiment, the sealing layer is provided with a through hole, which is positioned opposite to the first pickup hole 230. In this way, external sounds can be received by the pickup unit 110 after passing through the first pickup hole 230 and the through hole.

[0077] Furthermore, the area of ​​the first pickup hole 230 projected onto the microphone circuit board 100 is smaller than the area of ​​the through hole projected onto the microphone circuit board 100. This arrangement ensures that all sound signals entering the first pickup hole 230 can be received by the pickup unit 110, and prevents some sound signals entering the first pickup hole 230 from being blocked by the sealing layer and reflected.

[0078] like Figure 6 As shown, in some embodiments, the microphone circuit board 100 is provided with a positioning hole 102, and the main mounting plate 210 is provided with a positioning post 212 adapted to the positioning hole 102 on the side near the microphone circuit board 100.

[0079] When the microphone circuit board 100 is mounted on the bracket 200, the positioning post 212 passes through the positioning hole 102. This arrangement allows for more precise positioning of the microphone circuit board 100 during the assembly process between the microphone circuit board 100 and the bracket 200, thereby improving the positional accuracy between the two and thus helping to ensure sound pickup performance.

[0080] In one embodiment, the adhesive layer is double-sided tape. Using double-sided tape to bond the main mounting plate 210 and the mounting part 20 improves the assembly efficiency of the microphone assembly 10 and the mounting part 20, and also helps to save costs.

[0081] Please refer to Figure 2 It is understandable that since the main mounting plate 210 has a protrusion 211 on the side away from the microphone circuit board 100, the double-sided adhesive used to connect the main mounting plate 210 and the mounting part 20 must avoid the protrusion 211. Therefore, multiple small segments of double-sided adhesive can be used to bond the main mounting plate 210 and the mounting part 20.

[0082] like Figure 1 , Figure 2 as well as Figure 10 As shown, in some embodiments, the connecting part 220 includes a first connecting plate 221, a second connecting plate 222, and a buckle 223. One end of the first connecting plate 221 is connected to the main mounting plate 210, and the second connecting plate 222 is connected to the other end of the first connecting plate 221. The second connecting plate 222 is parallel to the main mounting plate 210. The buckle 223 is disposed on the second connecting plate 222 and is used to engage with the mounting part 20.

[0083] Normally, the mounting part 20 is provided with a receiving cavity 22, and the microphone circuit board 100 is placed in the receiving cavity 22. In this way, the microphone circuit board 100 and the pickup unit 110 thereon can be protected.

[0084] In this embodiment, the first connecting plate 221 and the main mounting plate 210 can be angled together, and the second connecting plate 222 is located at the end of the first connecting plate 221 away from the main mounting plate 210. Thus, by utilizing the extension effect of the first connecting plate 221, the second connecting plate 222 can be positioned outside the receiving cavity 22. Furthermore, the second connecting plate 222 is parallel to the main mounting plate 210, and a latch 223 is disposed on the second connecting plate 222, such that the latch 223's engagement portion with the mounting part 20 is outside the receiving cavity 22. This facilitates alignment of the latch 223 with the latching holes on the mounting part 20 when assembling the microphone assembly 10 and the mounting part 20, thereby reducing assembly difficulty and improving assembly efficiency.

[0085] like Figure 3 , Figure 4 , Figure 5 as well as Figure 10 As shown, in one embodiment, the first connecting plate 221 is perpendicular to the main mounting plate 210. In this way, when the buckle 223 is engaged with the mounting part 20, the first connecting plate 221 can provide more stable support for the main mounting plate 210, thereby improving the connection stability between the bracket 200 and the mounting part 20.

[0086] Furthermore, there can be two connecting parts 220, which are located at opposite ends of the main mounting plate 210. This arrangement can improve the connection stability between the bracket 200 and the mounting part 20.

[0087] like Figure 3 As shown, in one embodiment, the bracket 200 further includes a support plate 240, which is connected to the main mounting plate 210 and also to the connecting portion 220. The support plate 240 is perpendicular to the main mounting plate 210. The support plate 240 can structurally strengthen the main mounting plate 210, thereby improving its structural strength and rigidity. This ensures that the main mounting plate 210 is not easily damaged or deformed, which also helps maintain the flatness of the microphone circuit board 100 connected to the main mounting plate 210, thus maintaining good sound pickup performance.

[0088] like Figure 3As shown, the support plate 240 further includes at least one cable pass-through hole 241. Typically, the microphone circuit board 100 is connected to cables, such as power cables for connection to a power source and signal cables for connection to a controller. The cable pass-through hole 241 on the support plate 240 allows the cables of the microphone circuit board 100 to pass through. This facilitates cable routing.

[0089] like Figure 3 As shown, in one embodiment, the bracket 200 further includes a reinforcing rib 250, which is connected to the support plate 240 and also to the connecting portion 220. By providing the reinforcing rib 250, the connection strength between the support plate 240 and the connecting portion 220 can be improved, thereby helping to ensure the overall structural stability of the bracket 200.

[0090] In some embodiments, the number of protrusions 211 is the same as the number of first pickup holes 230, with each protrusion 211 having a corresponding first pickup hole 230. In other embodiments, the number of protrusions 211 is less than the number of first pickup holes 230, with each protrusion 211 having two or more first pickup holes 230.

[0091] In other words, the first pickup hole 230 can be configured to correspond one-to-one with the protrusion 211, or one protrusion 211 can correspond to multiple first pickup holes 230. The specific configuration can be determined according to actual usage requirements.

[0092] like Figure 10 As shown, in some embodiments, the microphone pickup unit 110 is disposed on the side of the wind circuit board 100 away from the main mounting plate 210, and the microphone circuit board 100 is provided with a third pickup hole 101, which is opposite to the microphone pickup unit 110 and is opposite to and connected to the first pickup hole 230.

[0093] To maintain good flatness of the microphone circuit board 100, the pickup unit 110 can be positioned on the side of the microphone circuit board 100 away from the main mounting plate 210. In this case, a third pickup hole 101 can be provided on the microphone circuit board 100, with the third pickup hole 101 facing the pickup unit 110 and facing and communicating with the first pickup hole 230. In this way, external sounds can be received by the pickup unit 110 through the first pickup hole 230 and the third pickup hole 101, thereby ensuring good flatness of the microphone circuit board 100 and improving the sound pickup effect.

[0094] Understandably, the sealing layer is located between the microphone circuit board 100 and the main mounting plate 210, and surrounds the first pickup hole 230 and the third pickup hole 101, thereby forming a seal around the first pickup hole 230 and the third pickup hole 101 to ensure the sound pickup effect.

[0095] like Figure 9 As shown, in some embodiments, the distance from the end of the third pickup hole 101 near the pickup unit 110 to the end of the first pickup hole 230 away from the pickup unit 110 is L1, and the depth of the first pickup hole 230 is L2, wherein L2≥1 / 2L1.

[0096] The depth L2 of the first pickup hole 230 can also be understood as the distance from the end of the first pickup hole 230 near the pickup unit 110 to the end of the first pickup hole 230 away from the pickup unit 110.

[0097] Extensive testing revealed that, under the aforementioned conditions, the sound pickup effect is significantly improved.

[0098] like Figure 2 , Figure 5 As shown, in some embodiments, the diameter of the first pickup hole 230 gradually increases from the end closer to the microphone circuit board 100 to the end farther away from the microphone circuit board 100. This arrangement makes the first pickup hole 230 horn-shaped, meaning the diameter of the first pickup hole 230 near the user is larger than the diameter of the end farther away from the user. This increases the area for picking up the user's voice signal, thereby improving the efficiency of voice signal pickup.

[0099] like Figure 7 , Figure 8 , Figure 9 as well as Figure 10 As shown, an embodiment of the second aspect of this application provides a display device, which includes a mounting part 20 and a microphone assembly 10 as described in any of the above embodiments. The mounting part 20 forms a receiving cavity 22 and is provided with a second pickup hole 21 communicating with the receiving cavity 22. The microphone circuit board 100 and the main mounting plate 210 are both located in the receiving cavity 22. The bracket 200 is connected to the mounting part 20, and at least a portion of the protrusion 211 is located in the second pickup hole 21.

[0100] Among them, display devices can be commercial display terminals, monitors, televisions, and other products with display functions.

[0101] The mounting portion 20 has a receiving cavity 22, in which the microphone circuit board 100 and the main mounting plate 210 are both located. In this way, the mounting portion 20 can protect the microphone circuit board 100 and the pickup unit 110 located on the microphone circuit board 100.

[0102] Combination Figures 1 to 5 As shown in the embodiment of this application, in the display device, the microphone circuit board 100 of the microphone assembly 10 is connected to one side of the main mounting plate 210 of the bracket 200. A protrusion 211 is provided on the other side of the main mounting plate 210. The first pickup hole 230 of the bracket 200 passes through the main mounting plate 210 and the protrusion 211. When the microphone assembly 10 is installed on the mounting portion 20 of the display device, the protrusion 211 of the bracket 200 at least partially extends into the second pickup hole 21 of the mounting portion 20 of the display device. Compared with the mounting method in related technologies, the microphone circuit board 100 is no longer subjected to top pressure, thus ensuring good flatness of the microphone circuit board 100.

[0103] In addition, since the protrusion 211 extends at least partially into the second sound pickup hole 21 of the mounting portion 20 of the display device, external sounds are directly received by the sound pickup unit 110 through the first sound pickup hole 230, thus eliminating the need to place foam between the main mounting plate 210 and the mounting portion 20.

[0104] Therefore, during installation, the microphone assembly 10 ensures good flatness of the microphone circuit board 100 and eliminates the need for foam between the main mounting plate 210 and the mounting portion 20, thus avoiding the problem of inconsistent foam compression. This improves the sound pickup performance of the microphone assembly 10.

[0105] like Figure 10 As shown, in some embodiments, the second pickup hole 21 is a tapered hole, and the protrusion 211 is a frustum-shaped structure adapted to the tapered hole. The tapered shape of the second pickup hole 21 allows the protrusion 211 to more easily enter the second pickup hole 21 during assembly of the bracket 200 and the mounting part 20, thus improving assembly efficiency. Furthermore, by using a frustum-shaped structure to fit the tapered hole in the second pickup hole 21, a noticeable gap can be avoided between the protrusion 211 and the hole wall of the second pickup hole 21. This improves aesthetics and prevents dust accumulation caused by noticeable gaps.

[0106] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A microphone assembly for a display device having a mounting portion, said mounting portion having a receiving cavity, characterized in that, The microphone assembly includes: A microphone circuit board is disposed in the receiving cavity, and the microphone circuit board has a pickup unit; The bracket includes a main mounting plate and a connecting portion connected to the main mounting plate. The connecting portion is used to connect to the mounting portion. A microphone circuit board is connected to one side of the main mounting plate. A sealing layer is provided between the microphone circuit board and the main mounting plate. A protrusion is provided on the other side of the main mounting plate. The bracket has a first pickup hole that penetrates the main mounting plate and the protrusion. A pickup unit is opposite to and communicates with the first pickup hole. The mounting portion has a second pickup hole that communicates the receiving cavity with the outside. The protrusion is configured to at least partially extend into the second pickup hole.

2. The microphone assembly according to claim 1, characterized in that, An adhesive layer is provided on the side of the main mounting plate away from the microphone circuit board, and the adhesive layer is used to connect with the mounting part.

3. The microphone assembly according to claim 2, characterized in that, The adhesive layer is double-sided adhesive.

4. The microphone assembly according to claim 1, characterized in that, The sealing layer is double-sided adhesive.

5. The microphone assembly according to claim 1, characterized in that, The microphone circuit board is provided with positioning holes, and the main mounting plate is provided with positioning posts that are adapted to the positioning holes on the side near the microphone circuit board.

6. The microphone assembly according to claim 1, characterized in that, The connecting part includes: A first connecting plate, one end of which is connected to the main mounting plate; A second connecting plate is connected to the other end of the first connecting plate, and the second connecting plate is parallel to the main mounting plate. A snap-fit ​​is provided on the second connecting plate and is used to engage with the mounting part.

7. The microphone assembly according to claim 1, characterized in that, The bracket also includes a support plate, which is connected to the main mounting plate and also connected to the connecting part. The support plate is perpendicular to the main mounting plate.

8. The microphone assembly according to claim 7, characterized in that, The support plate is provided with a wire-passing hole, which is used to allow the cables of the microphone circuit board to pass through.

9. The microphone assembly according to claim 7, characterized in that, The bracket also includes reinforcing ribs, which are connected to the support plate and the connecting portion.

10. The microphone assembly according to claim 1, characterized in that, The number of protrusions is the same as the number of the first pickup holes, and each protrusion is provided with a corresponding first pickup hole.

11. The microphone assembly according to claim 1, characterized in that, The number of protrusions is less than the number of the first pickup holes, and each protrusion is provided with two or more of the first pickup holes.

12. The microphone assembly according to claim 1, characterized in that, The pickup unit is located on the side of the wind circuit board away from the main mounting plate. The microphone circuit board has a third pickup hole, which is opposite to the pickup unit and is opposite to and connected to the first pickup hole.

13. The microphone assembly according to claim 12, characterized in that, The distance from the end of the third pickup hole near the pickup unit to the end of the first pickup hole away from the pickup unit is L1, and the depth of the first pickup hole is L2, wherein L2 ≥ 1 / 2L1.

14. The microphone assembly according to any one of claims 1 to 13, characterized in that, The diameter of the first pickup hole gradually increases from the end closest to the microphone circuit board to the end furthest from the microphone circuit board.

15. A display device, characterized in that, include: The mounting part has a receiving cavity and is provided with a second pickup hole that communicates the receiving cavity with the outside. as well as The microphone assembly according to any one of claims 1 to 14, wherein the microphone circuit board and the main mounting plate are both located within the receiving cavity, the bracket is connected to the mounting portion, and at least a portion of the protrusion is located within the second pickup hole.

16. The display device according to claim 15, characterized in that, The second pickup hole is a conical hole, and the protrusion is a frustum structure adapted to the conical hole.

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