Improved sound pickup structure

By incorporating a dual-cavity structure and vent design in the microphone, the problem of poor sound pickup performance in complex acoustic environments by existing microphones has been solved, resulting in improved smoothness and naturalness of sound transmission and enhanced sound pickup quality.

CN223798313UActive Publication Date: 2026-01-13江门市捷思通电子科技有限公司
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Patent Information

Application Number
CN202423030494.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2026-01-13
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

The existing microphone cavity structure makes it difficult to effectively adjust the sound flow path and resonance phenomenon, resulting in poor sound pickup performance in complex acoustic environments, especially in terms of frequency response and sound clarity.

Method used

It adopts a dual-cavity structure design, which divides the cavity into a first sound cavity and a second sound cavity by setting a partition component inside the cavity, and sets air holes on the outer periphery of the middle sleeve to realize air circulation. Combined with tuning paper and damping cotton, it adjusts the sound wave reflection and absorption to prevent acoustic distortion.

Benefits of technology

It effectively regulates the sound flow path and resonance phenomenon, reduces pressure accumulation, improves the smoothness and naturalness of sound transmission, avoids echoes and noise, and enhances sound pickup quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an improved pickup structure which comprises a middle sleeve and a cavity arranged in the middle sleeve, one end of the middle sleeve is provided with a voice diaphragm vibration assembly, and the other end of the middle sleeve is provided with a voice chamber; the cavity is internally provided with a separation assembly, the separation assembly is used for separating the cavity into a first sound cavity and a second sound cavity communicated with the first sound cavity, the first sound cavity is internally provided with a magnetic field assembly, the first sound cavity is communicated with the sound chamber, and the second sound cavity is communicated with the outside. According to the invention, the separation assembly is arranged in the cavity to form a double-cavity structure, and the flow path of sound and the resonance phenomenon in the sound cavity are effectively adjusted, so that the reflection and absorption of sound waves are adjusted, and unnecessary acoustic distortion is prevented; in addition, the cavity and the air form circulation, pressure accumulation is reduced, smoothness and naturalness of sound transmission are facilitated, and unnecessary echoes or noise is prevented from being generated in the cavity.
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Description

Technical Field

[0001] This utility model particularly relates to an improved pickup structure. Background Technology

[0002] Existing microphones typically feature simple, sealed acoustic chamber designs, making it difficult to effectively regulate sound flow and resonance within the chamber. This results in poor sound pickup performance in complex acoustic environments. In particular, frequency response, sound clarity, and detail reproduction are often limited by the acoustic chamber structure.

[0003] Therefore, there is an urgent need to design a sound cavity structure that can help optimize the sound wave transmission path and improve the sound pickup quality. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an improved pickup structure.

[0005] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0006] An improved pickup structure includes a middle sleeve and a cavity disposed within the middle sleeve. One end of the middle sleeve is provided with a diaphragm vibration component, and the other end is provided with a sound chamber. A partition component is provided within the cavity to divide the cavity into a first sound chamber and a second sound chamber communicating with the first sound chamber. A magnetic field component is provided within the first sound chamber. The first sound chamber is communicating with the sound chamber, and the second sound chamber is communicating with the outside.

[0007] Preferably, the separating component includes a filter cartridge with an upper opening, a washer is provided on the edge of the opening of the filter cartridge, the magnetic field component is located inside the filter cartridge, and the lower end of the diaphragm vibration component is connected between the washer and the magnetic field component.

[0008] Preferably, the bottom wall of the filter cartridge is provided with a through hole communicating with the sound chamber.

[0009] Preferably, the outer periphery of the middle sleeve is provided with an air hole that communicates with the second sound cavity.

[0010] Preferably, the middle sleeve is provided with tuning paper adapted to the air vent.

[0011] Preferably, the sound chamber and the middle sleeve are connected by threads or snap fasteners.

[0012] Preferably, the lower end of the middle sleeve is provided with a channel communicating with the sound chamber, and the channel is filled with damping cotton.

[0013] Preferably, the diaphragm vibration assembly includes a protective cover snapped onto the upper end of the middle sleeve, the protective cover having a sponge on the side away from the middle sleeve, and a diaphragm being disposed between the magnetic field assembly and the washer.

[0014] Preferably, the sound chamber is provided with a sound chamber hole that communicates with the outside.

[0015] Preferably, the sound chamber is provided with a shock-absorbing ring.

[0016] The beneficial effects of this utility model are:

[0017] This application forms a dual-cavity structure by setting a partition component inside the cavity, which effectively regulates the sound flow path and resonance phenomenon within the cavity, thereby regulating the reflection and absorption of sound waves and preventing unnecessary acoustic distortion. In addition, the cavity allows air to circulate, reducing pressure accumulation and contributing to the smoothness and naturalness of sound transmission, while avoiding unnecessary echoes or noise within the cavity. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of an improved pickup structure according to this application. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of an improved pickup structure according to this application. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of an improved pickup structure according to this application. Figure 3 ;

[0022] Figure 4 This is a schematic diagram of an improved pickup structure according to this application. Figure 4 ;

[0023] Figure 5 This is a schematic diagram of an improved pickup structure according to this application. Figure 5 ;

[0024] Figure 6 This is a schematic diagram of an improved pickup structure according to this application. Figure 6 ;

[0025] Figure 7 This is a schematic diagram of an improved pickup structure according to this application. Figure 7 ;

[0026] Figure 8This is a schematic diagram of an improved pickup structure according to this application. Figure 8 . Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0028] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0029] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.

[0030] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0031] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0032] An improved pickup structure, referring to Figures 1-7 It includes a middle sleeve 1 and a cavity disposed within the middle sleeve 1. One end of the middle sleeve 1 is provided with a diaphragm vibration component, and the other end is provided with a sound chamber 2. A partition component is provided within the cavity, which is used to divide the cavity into a first sound chamber 3 and a second sound chamber 4 connected to the first sound chamber 3. A magnetic field component 5 is provided within the first sound chamber 3. The first sound chamber 3 is connected to the sound chamber 2, and the second sound chamber 4 is connected to the outside.

[0033] Furthermore, the separating component includes a filter cylinder 61 with an upper opening, a washer 62 is provided on the edge of the opening of the filter cylinder 61, the magnetic field component 5 is located inside the filter cylinder 61, and the lower end of the diaphragm vibration component is connected between the washer 62 and the magnetic field component 5.

[0034] Furthermore, the bottom wall of the filter cartridge 61 is provided with a through hole 7 that communicates with the sound chamber 2.

[0035] Furthermore, the longitudinal cross-sectional structure of the filter cartridge 61 is U-shaped.

[0036] Furthermore, the outer periphery of the middle sleeve 1 is provided with an air hole 8 that communicates with the second sound cavity 4.

[0037] Furthermore, the middle sleeve 1 is provided with tuning paper 9 that is adapted to the air hole 8.

[0038] Furthermore, the sound chamber 2 and the middle sleeve 1 are connected by threads or snap fasteners.

[0039] Furthermore, the lower end of the middle sleeve 1 is provided with a channel 10 communicating with the sound chamber 2, and the channel 10 is filled with damping cotton 11.

[0040] Furthermore, the diaphragm vibration assembly includes a protective cover 12 snapped onto the upper end of the middle sleeve 1, the protective cover 12 having a sponge 13 on the side away from the middle sleeve 1, and a diaphragm 14 disposed between the magnetic field assembly 5 and the washer 62.

[0041] Furthermore, the sound chamber 2 is provided with a sound chamber hole 20 that communicates with the outside.

[0042] Furthermore, the sound chamber 2 is equipped with a shock-absorbing ring 21.

[0043] The working principle of this utility model is as follows:

[0044] In Embodiment 1, the middle sleeve 1 is a cylindrical structure, with its centerline direction being its axial direction. The middle sleeve 1 has a cavity extending through it along the axial direction. A diaphragm vibration assembly is located at the upper end of the middle sleeve 1, and a sound chamber 2 is located at the lower end. This application includes a partitioning assembly within the cavity, dividing it into a first sound chamber 3 and a second sound chamber 4, thus forming a dual-cavity structure. This increases the travel distance of the sound wave airflow. Sound first passes through the diaphragm vibration assembly and enters the first sound chamber 3. The diaphragm 14 vibrates under the impact of the sound wave, generating an induced current in the magnetic field assembly 5, thereby achieving sound acquisition. The partition component of this application divides the cavity into a first acoustic cavity 3 and a second acoustic cavity 4. Since the second acoustic cavity 4 is connected to the first acoustic cavity 3, and an air vent 8 is provided on the outer periphery of the inner sleeve 1, air can flow between the cavity and the second acoustic cavity 4 through the air vent 8. Because the first acoustic cavity 3 and the second acoustic cavity 4 are connected, some air can enter the first acoustic cavity 3, reducing pressure accumulation within the cavity and contributing to the smoothness and naturalness of sound transmission, thus avoiding unnecessary echoes or noise within the cavity. This application may optionally provide a tuning paper 9 on the air vent 8. The tuning paper 9 has a damping effect on sound waves, which can improve sound frequency.

[0045] In the above technical solution, regarding the structure of the separating component, the separating component can be set as a filter cylinder 61, and a washer 62 is provided at the opening edge of the filter cylinder 61. That is to say, the filter cylinder 61 and the washer 62 together form the first sound cavity 3. When the sound enters the first sound cavity 3, it will enter the sound chamber 2 through the through hole 7 on the bottom of the filter cylinder 61. This application also provides a channel 10 on the bottom of the middle sleeve 1, and the channel 10 is filled with damping cotton 11. The main component of the damping cotton 11 is a high polymer composite material, which can reduce the reflection of sound waves, reduce vibration noise, and improve sound quality. As an embodiment 1, the longitudinal cross-sectional structure of the filter cylinder 61 is U-shaped.

[0046] Based on the above technical solution, the sound diaphragm vibration component of this application is configured with a structure of diaphragm 14, protective cover 12, and sponge 13. The protective cover 12 is connected to the middle sleeve 1 by snap-fit. Then, a sponge 13 is provided on the side of the protective cover 12 away from the middle sleeve 1. The sponge 13 can filter foreign objects in the air, prevent foreign objects from entering the cavity and causing the magnetic field component 5 to malfunction, and ensure the stability of the internal structure of the cavity.

[0047] Based on the above technical solution, this application provides a sound chamber hole 20 on the sound chamber 2 that communicates with the outside world. Similarly, this can reduce the pressure accumulation in the sound chamber 2, which helps to make the sound transmission smooth and natural, and avoids unnecessary echoes or noise in the sound chamber 2.

[0048] Based on the above technical solution, this application provides a shock-absorbing ring 21 on the sound chamber 2. One end of the shock-absorbing ring 21 is located on the outer periphery of the sound chamber 2. When the pickup and microphone are assembled and used, the shock-absorbing ring 21 will form a cavity between the microphone and the sound chamber 2, effectively reducing the impact of external vibration on the pickup.

[0049] This application forms a dual-cavity structure by setting a partition component inside the cavity, which effectively regulates the sound flow path and resonance phenomenon within the cavity, thereby regulating the reflection and absorption of sound waves and preventing unnecessary acoustic distortion. In addition, the cavity allows air to circulate, reducing pressure accumulation and contributing to the smoothness and naturalness of sound transmission, while avoiding unnecessary echoes or noise within the cavity.

[0050] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. An improved pickup structure, characterized in that, It includes a middle sleeve (1) and a cavity disposed within the middle sleeve (1). One end of the middle sleeve (1) is provided with a diaphragm vibration component, and the other end is provided with a sound chamber (2). A partition component is disposed within the cavity, which is used to divide the cavity into a first sound chamber (3) and a second sound chamber (4) connected to the first sound chamber (3). A magnetic field component (5) is disposed within the first sound chamber (3). The first sound chamber (3) is connected to the sound chamber (2), and the second sound chamber (4) is connected to the outside.

2. The improved pickup structure according to claim 1, characterized in that, The separating component includes a filter cylinder (61) with an opening at the top, a washer (62) is provided on the edge of the opening of the filter cylinder (61), the magnetic field component (5) is located inside the filter cylinder (61), and the lower end of the diaphragm vibration component is connected between the washer (62) and the magnetic field component (5).

3. The improved pickup structure according to claim 2, characterized in that, The bottom wall of the filter cartridge (61) is provided with a through hole (7) that communicates with the sound chamber (2).

4. The improved pickup structure according to claim 1, characterized in that, The outer periphery of the middle sleeve (1) is provided with an air hole (8) that communicates with the second sound cavity (4).

5. An improved pickup structure according to claim 4, characterized in that, The middle sleeve (1) is provided with tuning paper (9) that is compatible with the air hole (8).

6. The improved pickup structure according to claim 1, characterized in that, The sound chamber (2) and the middle sleeve (1) are connected by threads or snap fasteners.

7. The improved pickup structure according to claim 1, characterized in that, The lower end of the middle sleeve (1) is provided with a channel (10) communicating with the sound chamber (2), and the channel (10) is filled with damping cotton (11).

8. An improved pickup structure according to claim 2, characterized in that, The diaphragm vibration assembly includes a protective cover (12) snapped onto the upper end of the middle sleeve (1), the protective cover (12) having a sponge (13) on the side away from the middle sleeve (1), and a diaphragm (14) disposed between the magnetic field assembly (5) and the washer (62).

9. The improved pickup structure according to claim 1, characterized in that, The sound chamber (2) is provided with a sound chamber hole (20) that communicates with the outside world.

10. An improved pickup structure according to claim 1, characterized in that, The sound chamber (2) is equipped with a shock-absorbing ring (21).