A microphone with a hidden pickup structure

Abstract

The utility model provides a microphone of hidden type pickup structure, including the casing that is composed of upper shell and lower shell, the outer surface department of lower shell is equipped with the edge groove, the top of edge groove is covered by the edge of upper shell, the inside wall top of edge groove is equipped with the sound inlet slit, the sound tube that is accommodated in the inside of lower shell is equipped with upper shell bottom side part, the dust screen is equipped with the import end of sound tube and is butt joint in the sound inlet slit, the inside of lower shell is equipped with PCBA board, PCBA board is equipped with the guide hole that passes through up and down, PCBA board top is equipped with the tuning net that covers the top of guide hole, the sealing ring that is butt joint in the export end of sound tube is equipped on the tuning net, the microphone that is butt joint in the bottom of guide hole is equipped with PCBA board bottom. The sound inlet slit is designed into the hidden type structure to improve the wind noise and waterproof effect when the sound inlet slit sounds; the small mesh structure of dust screen can block water droplet, dust and reduce wind noise; the small mesh structure of tuning net can weaken the wind noise of sound. Can improve the double effect of wind noise and waterproof of this microphone greatly.

Description

Technical Field

[0001] This utility model relates to the field of microphone technology, and in particular to a microphone with a hidden pickup structure. Background Technology

[0002] A microphone is an energy conversion device that converts sound signals into electrical signals. Its scientific name is a transducer, also known as a microphone or microphone, and it is widely used in the field of audio recording. In audio recording, a microphone is like a human ear, and different pickup patterns give it different "hearing characteristics" to adapt to a wide variety of application scenarios.

[0003] As the core component of audio input, the performance of the microphone's pickup structure directly determines the audio input effect, requiring efficient, lossless, and low-distortion sound pickup. In practical headphone applications, the pickup structure typically has a certain degree of openness to achieve effective sound pickup, which presents a technical challenge to the complex usage environment.

[0004] On the one hand, when microphones are used in humid environments such as rainy days and when sweating during exercise, they need to have reliable waterproof capabilities to ensure the normal operation of the equipment. This requires sealing or shielding the pickup structure. On the other hand, when microphones are used outdoors, wind noise in the environment will directly enter the microphone through the open area of ​​the pickup structure, causing a significant drop in the signal-to-noise ratio of the audio signal and seriously affecting the quality of audio input.

[0005] To address the aforementioned waterproofing requirements, existing technologies often employ conventional waterproofing structures such as simple sealing rings and waterproof membranes to treat the sound pickup structure. However, these structures have significant drawbacks in practical applications: while simple sealing rings can achieve waterproofing to a certain extent, they obstruct the sound propagation path, resulting in weakened sound quality; although waterproof membranes can balance sound transmission and waterproofing to a certain extent, they cannot effectively block the intrusion of wind noise, and in some scenarios, the vibration of the membrane can even further exacerbate the impact of wind noise.

[0006] As a result, current microphone pickup structures are caught in a technical bottleneck where "waterproofing exacerbates wind noise, while wind noise prevention causes waterproofing to fail." How to effectively suppress wind noise while ensuring waterproofing performance and without compromising sound quality has become a key technical problem that urgently needs to be solved in this field. Utility Model Content

[0007] The present invention aims to provide a microphone with a concealed pickup structure to achieve a significant improvement in both wind noise reduction and waterproofing.

[0008] The technical solution adopted by this utility model to solve the technical problem is as follows: A microphone with a hidden pickup structure includes a housing composed of an upper shell and a lower shell; the outer surface of the lower shell is provided with a side groove, the top of the side groove is covered by the side of the upper shell, the top of the inner side wall of the side groove is provided with a sound inlet slit, the bottom side of the upper shell is provided with a sound transmission tube accommodated inside the lower shell, the inlet end of the sound transmission tube is provided with a dustproof mesh and connected to the sound inlet slit, the lower shell is provided with a PCBA board, the PCBA board is provided with a through hole, the top of the PCBA board is provided with a tuning mesh covering the top of the through hole, the tuning mesh is provided with a sealing ring connected to the outlet end of the sound transmission tube, and the bottom of the PCBA board is provided with a microphone head connected to the bottom end of the through hole.

[0009] In some embodiments, the dustproof net is made of 80 to 120 mesh nylon mesh or steel mesh.

[0010] In some embodiments, the sealing ring is made of butyl rubber.

[0011] In some embodiments, the tuning mesh is made of 250 to 350 mesh nylon mesh or steel mesh.

[0012] In some embodiments, the surface of the tuning mesh is coated with a waterproof nano-coating with a thickness of 0.8 mm to 1.2 mm.

[0013] In some embodiments, the waterproof nanocoating material is one of fluoropolymers, silicon-based compounds, and titanium-based compounds.

[0014] In some embodiments, the dustproof mesh is adhered to the inlet end of the sound transmission tube.

[0015] In some embodiments, the tuning mesh is adhered to the top of the PCBA board to cover the top of the guide hole, and the sealing ring is adhered to the top of the tuning mesh.

[0016] In some embodiments, the upper shell and the lower shell are connected by a snap-fit ​​connection.

[0017] In some embodiments, a plurality of locking blocks are distributed on the inner wall of the upper shell, and a plurality of locking slots are distributed on the inner wall of the lower shell, wherein each locking block on the inner wall of the upper shell is used to engage with each locking slot on the inner wall of the lower shell.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In this invention, firstly, the sound inlet slit is designed as a hidden structure to improve wind noise and water resistance when sound enters through it. Secondly, as the sound enters the transmission tube from the sound inlet slit, it passes through a dustproof mesh; the fine mesh structure of the dustproof mesh blocks water droplets and dust, and reduces wind noise. Next, as the sound passes through the hollow sealing ring and reaches the guide hole, it passes through a tuning mesh; the fine mesh structure of the tuning mesh further reduces wind noise. Finally, the guide hole transmits the gradually reduced wind noise sound to the microphone for pickup. This design significantly improves the microphone's wind noise and water resistance, thereby enhancing its manufacturing quality and ultimately improving the user experience. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a microphone with a concealed pickup mechanism;

[0021] Figure 2 This is a schematic diagram of the shell in its split state;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram showing the structure with both the shell and the dustproof net in a split state.

[0024] Figure 5 This is a schematic diagram showing the structure with the housing in a split state, and the dustproof mesh, sealing ring, and tuning mesh also in a split state;

[0025] Figure 6 This is a structural diagram showing the shell in a split state, and the dust filter and PCBA board also in a split state;

[0026] Figure 7 This is a structural diagram showing the housing in a split state, with the dust filter, PCBA board, and microphone also in a split state;

[0027] Figure 8 This is a schematic diagram of the separate structure of a microphone with a concealed pickup mechanism.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Microphone with concealed pickup structure; 10. Housing; 101. Upper housing; 1011. Transmission tube; 10111. Inlet end; 10112. Outlet end; 1012. Dustproof mesh; 1013. Locking block; 102. Lower housing; 1021. Side groove; 1022. Sound inlet slit; 1023. Locking slot; 20. PCBA board; 201. Guide hole; 202. Tuning mesh; 203. Sealing ring; 204. Microphone capsule. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0032] Please refer to the following: Figures 1 to 8 As shown, Figure 1 A schematic diagram of the overall structure of the microphone 100 with a concealed pickup structure; Figure 2 This is a schematic diagram of the shell 10 in a split state; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram showing the structure in which the shell 10 is in a split state and the dustproof net 1012 is also in a split state; Figure 5 This is a schematic diagram showing the structure in which the housing 10 is in a split state, and the dustproof mesh 1012, sealing ring 203 and tuning mesh 202 are also in a split state; Figure 6 This is a schematic diagram showing the structure in which the housing 10 is in a split state, and the dustproof mesh 1012 and PCBA board 20 are also in a split state; Figure 7 This is a schematic diagram showing the structure in which the housing 10 is in a split state, and the dustproof mesh 1012, PCBA board 20 and microphone 204 are also in a split state; Figure 8 This is a schematic diagram of the microphone 100's split structure, which features a concealed pickup mechanism.

[0033] This utility model provides the following technical solution: a microphone 100 with a concealed pickup structure, comprising a housing 10 composed of an upper housing 101 and a lower housing 102; the outer surface of the lower housing 102 is provided with a side groove 1021, the top of the side groove 1021 is covered by the side of the upper housing 101, the top of the inner side wall of the side groove 1021 is provided with a sound inlet slit 1022, the bottom side of the upper housing 101 is provided with a sound transmission tube 1011 accommodated inside the lower housing 102, and the inlet end 1 of the sound transmission tube 1011 is 1 0111 is provided with a dustproof mesh 1012 and is connected to the sound inlet slit 1022. The lower shell 102 is provided with a PCBA board 20. The PCBA board 20 has a through hole 201. The top of the PCBA board 20 is provided with a tuning mesh 202 covering the top of the through hole 201. The tuning mesh 202 is provided with a sealing ring 203 connected to the outlet end 10112 of the sound transmission tube 1011. The bottom of the PCBA board 20 is provided with a microphone 204 connected to the bottom end of the through hole 201.

[0034] In the microphone 100 with a concealed pickup structure provided in this embodiment, during sound pickup, the sound enters the side groove 1021 and then enters the sound inlet slit 1022 within the side groove 1021. Since the sound inlet slit 1022 is located at the top of the inner wall of the side groove 1021, and the top of the side groove 1021 is covered by the edge of the upper shell 101, the sound inlet slit 1022 is concealed relative to the shell 10 at the top of the inner wall of the side groove 1021. This physically prevents water from entering the sound inlet slit 1022. This design enhances the microphone's waterproof performance. Furthermore, the sound inlet slit 1022 is a hidden structure on the top of the inner wall of the side groove 1021 relative to the housing 10, which also prevents the housing 10 from directly affecting the airflow from all directions, greatly reducing wind noise. In addition, the sound inlet slit 1022 is designed with an irregular curved shape, so when external airflow enters the sound inlet slit 1022, it needs to constantly change the direction of the airflow to enter. The kinetic energy of the airflow is greatly reduced by multiple reflections and friction from the inner wall of the side groove 1021, thereby reducing wind noise. When sound enters the sound inlet slit 1022, it will enter the interior of the lower shell 102 along the sound inlet slit 1022. Since the inlet end 10111 of the sound transmission tube 1011 is connected to the sound inlet slit 1022, when the sound enters the interior of the lower shell 102, it will enter the interior of the sound transmission tube 1011 from the inlet end 10111. During the process of sound entering the sound transmission tube 1011 from the sound inlet slit 1022, the sound will also be filtered by the dustproof mesh 1012. The fine mesh structure of the dustproof mesh 1012 can block dust and liquid water droplets from entering the interior of the sound transmission tube 1011. In addition, the fine mesh structure of the dustproof mesh 1012 can divide the airflow accompanying the sound into fine airflows to further reduce the airflow velocity and reduce the direct interaction between the airflow and the diaphragm of the microphone 204, thereby suppressing wind noise. After sound enters the sound transmission tube 1011, it exits from the outlet end 10112 of the sound transmission tube 1011. Since the top of the PCBA board 20 is equipped with a tuning mesh 202 covering the top of the guide hole 201, and the tuning mesh 202 has a sealing ring 203 that connects to the outlet end 10112 of the sound transmission tube 1011, when sound exits from the outlet end 10112 of the sound transmission tube 1011, the sound passes through the hollow of the sealing ring 203 to reach the guide hole 201. The sealing ring 203 fills the gap between the top of the guide hole 201 and the outlet end 10112 of the sound transmission tube 1011. The gap between the two is to prevent water from entering the guide hole 201 when there is water seepage inside the housing 10. As the sound passes through the hollow of the sealing ring 203 and reaches the guide hole 201, the sound will also pass through the tuning mesh 202 (the tuning mesh 202 has a mesh structure in the middle, and the middle of the tuning mesh 202 corresponds to the space between the hollow of the sealing ring 203 and the top of the guide hole 201). The fine mesh structure in the middle of the tuning mesh 202 can divide the airflow that accompanies the sound into fine airflows to further reduce the airflow velocity and reduce the direct interaction between the airflow and the diaphragm of the microphone 204, thereby suppressing wind noise.When sound enters the guide hole 201, the sound will be transmitted from the bottom of the guide hole 201 to the microphone 204 at the bottom of the PCBA board 20, so that the sound, which is gradually reduced by wind noise, can be picked up by the microphone 204 at the bottom of the PCBA board 20. In this invention, firstly, the sound inlet slit 1022 is designed as a hidden structure to improve wind noise and water resistance when sound enters through it. Secondly, as sound from the sound inlet slit 1022 enters the sound transmission tube 1011, it passes through a dustproof mesh 1012. The fine mesh structure of the dustproof mesh 1012 blocks water droplets and dust, and reduces wind noise. Thirdly, as sound from the sound transmission tube 1011 passes through the hollow sealing ring 203 and reaches the guide hole 201, it also passes through a tuning mesh 202. The fine mesh structure of the tuning mesh 202 further reduces wind noise. Finally, the guide hole 201 transmits the sound, with its wind noise reduced step by step, to the microphone 204 for pickup. This design significantly improves the microphone's wind noise and water resistance, thereby enhancing its manufacturing quality and ultimately improving the user experience.

[0035] In some embodiments, the dustproof net 1012 is made of 80 to 120 mesh nylon mesh or steel mesh.

[0036] In practice: the dustproof net 1012 is set to 80 to 120 mesh, so that the fine mesh structure of the dustproof net 1012 can block water droplets and dust, and can divide the airflow into fine airflow to reduce wind noise, which has a practical effect.

[0037] In some embodiments, the sealing ring 203 is made of butyl rubber.

[0038] In specific implementation: the sealing ring 203 is made of butyl rubber, so that the sealing ring 203 can seal and fill the gap between the top of the guide hole 201 and the outlet end 10112 of the sound tube 1011, so as to prevent water from entering the guide hole 201 and causing water to enter the microphone 204 when there is water seepage inside the housing 10.

[0039] In some embodiments, the tuning mesh 202 is made of 250 to 350 mesh nylon mesh or steel mesh.

[0040] In practice: the tuning mesh 202 is set to 250 to 350 mesh, so that the fine mesh structure of the tuning mesh 202 can divide the airflow into fine airflow to reduce wind noise.

[0041] In some embodiments, the surface of the tuning mesh 202 is coated with a waterproof nano-coating with a thickness of 0.8 mm to 1.2 mm.

[0042] In practice: the waterproof nano-coating applied to the surface of the tuning mesh 202 can reduce the surface energy of the tuning mesh 202. The waterproof nano-coating increases the contact angle of water droplets, forming a superhydrophobic effect and blocking water penetration into the fine mesh structure of the tuning mesh 202.

[0043] In some embodiments, the waterproof nanocoating material is one of fluoropolymers, silicon-based compounds, and titanium-based compounds.

[0044] In specific implementation: the waterproof nano-coating can be applied using one of the following: a fluoropolymer, a silicon-based compound, or a titanium-based compound. The aforementioned fluoropolymer, silicon-based compound, and titanium-based compound are all existing coating materials.

[0045] In some embodiments, the dustproof net 1012 is adhered to the inlet end 10111 of the sound transmission tube 1011.

[0046] In specific implementation: the dustproof net 1012 is bonded to the inlet end 10111 of the sound transmission tube 1011 so that the dustproof net 1012 can be fixed at the outlet end 10112 of the sound transmission tube 1011 for application.

[0047] In some embodiments, the tuning mesh 202 is bonded to the top of the PCBA board 20 to cover the top of the guide hole 201, and the sealing ring 203 is bonded to the top of the tuning mesh 202.

[0048] In specific implementation: the tuning mesh 202 is bonded to the top of the PCBA board 20 so that the tuning mesh 202 can be fixed on the top of the PCBA board 20 to cover the top of the guide hole 201 for application; the sealing ring 203 is bonded to the top of the tuning mesh 202 so that the sealing ring 203 can be fixed on the top of the tuning mesh 202 for application.

[0049] In some embodiments, the upper shell 101 and the lower shell 102 are connected by a snap-fit ​​connection.

[0050] In specific implementation: the upper shell 101 and the lower shell 102 are snap-fit ​​connected so that the upper shell 101 and the lower shell 102 can be fixed together to form the shell 10 for application.

[0051] In some embodiments, a plurality of locking blocks 1013 are distributed on the inner wall of the upper shell 101, and a plurality of locking slots 1023 are distributed on the inner wall of the lower shell 102. Each locking block 1013 on the inner wall of the upper shell 101 is used to be locked into each locking slot 1023 on the inner wall of the lower shell 102.

[0052] In specific implementation: each of the latching blocks 1013 on the inner wall of the upper shell 101 is respectively latched into each of the latching slots 1023 on the inner wall of the lower shell 102, so that the upper shell 101 and the lower shell 102 can be effectively latched and fixed, so that the upper shell 101 and the lower shell 102 can form an integral shell 10 for application.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A microphone with a concealed pickup structure, characterized in that, The device includes a housing consisting of an upper shell and a lower shell. The lower shell has a side groove on its outer surface, the top of which is covered by the edge of the upper shell. The top of the inner side wall of the side groove has a sound inlet slit. The bottom side of the upper shell has a sound transmission tube housed inside the lower shell. The inlet end of the sound transmission tube has a dustproof mesh and is connected to the sound inlet slit. The lower shell has a PCBA board inside. The PCBA board has a through hole running vertically through it. The top of the PCBA board has a tuning mesh covering the top of the through hole. The tuning mesh has a sealing ring that is connected to the outlet end of the sound transmission tube. The bottom of the PCBA board has a microphone that is connected to the bottom end of the through hole.

2. The microphone with a concealed pickup structure according to claim 1, characterized in that, The dustproof net is made of 80 to 120 mesh nylon mesh or steel mesh.

3. The microphone with a concealed pickup structure according to claim 1, characterized in that, The sealing ring is made of butyl rubber.

4. The microphone with a concealed pickup structure according to claim 1, characterized in that, The tuning mesh is made of 250 to 350 mesh nylon or steel mesh.

5. The microphone with a concealed pickup structure according to claim 1, characterized in that, The surface of the tuning mesh is coated with a waterproof nano-coating with a thickness of 0.8 mm to 1.2 mm.

6. The microphone with a concealed pickup structure according to claim 5, characterized in that, The waterproof nano-coating material is one of fluoropolymers, silicon-based compounds, and titanium-based compounds.

7. The microphone with a concealed pickup structure according to claim 1, characterized in that, The dustproof net is adhered to the inlet end of the sound transmission tube.

8. The microphone with a concealed pickup structure according to claim 1, characterized in that, The tuning mesh is adhered to the top of the PCBA board to cover the top of the guide hole, and the sealing ring is adhered to the top of the tuning mesh.

9. The microphone with a concealed pickup structure according to claim 1, characterized in that, The upper shell and the lower shell are connected by snap-fit ​​fasteners.

10. The microphone with a concealed pickup structure according to claim 1 or 9, characterized in that, The inner wall of the upper shell is provided with a plurality of locking blocks, and the inner wall of the lower shell is provided with a plurality of locking slots. Each locking block on the inner wall of the upper shell is used to engage with each locking slot on the inner wall of the lower shell.

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