A screw-free microphone housing structure

Abstract

The utility model relates to microphone technical field, concretely is a screw -free microphone shell structure, including casing, bottom shell and inner support, the bottom shell sets up at the bottom opening place of casing, the inner support sets up in casing, the inner support includes first connecting seat, support main part and second connecting seat, wherein first connecting seat and second connecting seat set up in the upper and lower both ends of support main part, the end part of support main part towards second connecting seat and second connecting seat all set up in bottom shell. The utility model proposes technical scheme, and the bottom shell is directly fixed and is connected with the inner support with thread mode and forms microphone bottom structure, need not through screw and carry out the lock operation of casing and bottom shell, on the one hand, reduces the operation amount, improves assembly efficiency, on the other hand, reduces the number of microphone independent parts, reduces the bottom noise brought by multi -stage vibration of parts, can improve the tone quality of microphone.

Description

Technical Field

[0001] This utility model belongs to the field of microphone technology, specifically a screwless microphone housing structure. Background Technology

[0002] In existing microphone structural designs, the bottom shell and outer shell are mostly assembled using a separate mechanical assembly method, that is, fixed by rigid screws to achieve overall sealing and support. Although this type of separate structure meets basic assembly requirements, the physical characteristics of its connection interface have significant defects in actual acoustic application scenarios: when external sound source vibration or mechanical impact acts on the microphone shell, the vibration energy is rigidly transmitted to the screw-locking area through the shell, and the screw, as an independent connecting component, lacks a vibration energy dissipation path with the shell, causing the two to form heterogeneous interface resonance under acoustic-mechanical coupling; at the same time, due to the presence of microscopic gaps or stress concentration points at the contact surface between the screw and the shell, high-frequency micro-amplitude secondary vibrations are easily induced during vibration transmission. These parasitic vibrations are transmitted through the shell structure to the internal acoustic transducer unit and are ultimately superimposed on the electroacoustic signal, manifesting as a non-negligible mechanical noise floor.

[0003] The aforementioned problems are particularly prominent in portable high-sensitivity microphones or high sound pressure level applications, severely restricting the purity and signal-to-noise ratio of sound acquisition, and becoming a long-standing technical bottleneck in existing microphone structural designs. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a screwless microphone housing structure.

[0005] The technical solution adopted by this utility model is as follows: a screwless microphone housing structure, including a housing, a bottom shell, and an inner bracket, wherein the bottom shell is disposed at the bottom opening of the housing; the inner bracket is disposed inside the housing, and the inner bracket includes a first connecting seat, a support body, and a second connecting seat, wherein the first connecting seat and the second connecting seat are disposed at the upper and lower ends of the support body, the end of the support body facing the second connecting seat and the second connecting seat are both disposed inside the bottom shell, and the end of the support body facing the second connecting seat is threadedly connected to the bottom shell.

[0006] In a preferred embodiment, the support body includes connecting beams and support beams. The connecting beams are in two sets and are arranged side by side at intervals along the length of the shell. The two ends of the connecting beams are fixedly connected to the first connecting seat and the second connecting seat, respectively.

[0007] In a preferred embodiment, both sets of connecting beams are provided with external threads on the outer side walls of their ends facing the second connecting seat, and the two sets of external threads are concentrically arranged.

[0008] In a preferred embodiment, the bottom shell is arranged in a ring shape, and the inner ring surface of the bottom shell is provided with an internal thread that matches the external thread. The bottom shell is threaded to the end of the connecting beam through two sets of external threads.

[0009] In a preferred embodiment, both the connecting beam and the supporting beam are strip-shaped structures. There are multiple supporting beams, which are arranged side by side at intervals along the length of the connecting beam between two sets of connecting beams. The connecting beam and the supporting beam together form a wireframe structure distributed along the plane.

[0010] In a preferred embodiment, the second connecting seat has a circular plate-like structure, and the outer diameter of the second connecting seat is the same as the inner diameter of the inner ring of the bottom shell. When the bottom shell is rotated to its limit position, the second connecting seat is embedded in the edge of the inner ring opening of the bottom shell.

[0011] In a preferred embodiment, a sealing cover is provided at the bottom of the second connecting seat, and the outer edge of the sealing cover is tightly fitted with the edge of the inner ring opening of the bottom shell.

[0012] In a preferred embodiment, the top edge of the bottom shell is recessed inward in a circumferential direction to form an annular recess, and the bottom end of the shell extends downward to form an annular convex surface, which is adapted to be embedded in the annular recess.

[0013] In a preferred embodiment, the outer wall of the bottom shell and the outer wall of the outer shell are arranged concentrically and coplanarly.

[0014] In a preferred embodiment, the second connector is configured to mount a connector terminal, and the second connector and the sealing cover have connector interfaces corresponding to the connector terminals.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: a threaded connection structure is designed between the bottom shell and the inner support in the shell, so that the bottom shell and the inner support can be directly fixed by the thread to form the bottom structure of the microphone during assembly, without the need for locking the shell and the bottom shell with screws. Compared with the traditional assembly method, this reduces the amount of operation and improves the assembly efficiency. On the other hand, it reduces the number of independent parts of the microphone, reduces the background noise caused by multi-level vibration of parts, and improves the sound quality. It has advantages that current products do not have and is worth promoting. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0017] Figure 2 This is a half-sectional three-dimensional structural diagram of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the inner support and the bottom shell after separation in this utility model;

[0019] Figure 4 for Figure 2 A schematic diagram of a partial three-dimensional structure;

[0020] Figure 5 This is a three-dimensional structural diagram of the bottom shell of this utility model.

[0021] Marked in the image:

[0022] 100 - Shell, 110 - Annular convex surface;

[0023] 200 - Bottom shell, 210 - Annular recess, 220 - Internal thread;

[0024] 300-Inner support, 310-External thread, 320-Second connecting seat, 330-First connecting seat, 340-Connecting beam, 350-Supporting beam, 360-Sealing cover. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these 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. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figure 1-5A screwless microphone housing structure includes a housing 100, a bottom shell 200, and an inner support 300. The bottom shell 200 is disposed at the bottom opening of the housing 100. The inner support 300 is disposed inside the housing 100 and includes a first connecting seat 330, a support body, and a second connecting seat 320. The first connecting seat 330 and the second connecting seat 320 are disposed at the upper and lower ends of the support body. The end of the support body facing the second connecting seat 320 and the second connecting seat 320 are both disposed inside the bottom shell 200, and the end of the support body facing the second connecting seat 320 is threadedly connected to the bottom shell 200.

[0029] The microphone housing structure provided by this utility model has a threaded assembly structure between the bottom shell 200 and the inner support 300. After the bottom shell 200 and the inner support 300 are directly threaded together, the bottom shell 200 and the second connecting seat 320 form the bottom structure of the microphone. There is no need to use screws to lock the housing 100 and the bottom shell 200 together. Compared with the traditional assembly method, this reduces the amount of process operation and improves the assembly efficiency. On the other hand, it reduces the number of independent parts of the microphone and reduces the mechanical noise caused by multi-level vibration of the parts, which can improve the sound quality of the microphone itself.

[0030] It should be mentioned that in this embodiment, the first connecting seat 330, the supporting body and the second connecting seat 320 are integrally formed structures, which can save mold opening costs while ensuring the overall strength of the combination. Of course, in other embodiments, it can also be a spliced ​​structure, which is not limited here.

[0031] Specifically, refer to Figure 2 and Figure 3 As shown, the support body includes a connecting beam 340 and a support beam 350. There are two sets of connecting beams 340, which are arranged side by side at intervals along the length of the shell 100. The two ends of the connecting beams 340 are fixedly connected to the first connecting seat 330 and the second connecting seat 320, respectively. External threads 310 are provided on the outer side wall of the ends of the two sets of connecting beams 340 that are close to the second connecting seat 320. The two sets of external threads 310 are arranged concentrically. The bottom shell 200 is arranged in a ring structure. The inner ring surface of the bottom shell 200 is provided with an internal thread 220 that is adapted to the external threads 310. The bottom shell 200 is threaded to the ends of the connecting beams 340 through the two sets of external threads 310. Through the cooperation between the external threads 310 on the connecting beams 340 and the internal threads 220 between the bottom shell 200, the assembly operation of the support body and the bottom shell 200 can be realized. The bottom shell 200 can be combined with the second connecting seat 320 to form the bottom structure of the microphone.

[0032] In some embodiments of this utility model, the second connector 320 is configured to install connector terminals. The second connector 320 and the sealing cover 360 are provided with connector interfaces corresponding to the connector terminals. The connector terminals include XLR terminals and TYPE-C terminals. The second connector 320 is configured to install a microphone, which is not limited here.

[0033] Furthermore, both the connecting beam 340 and the support beam 350 are strip-shaped structures. There are multiple support beams 350, spaced apart and arranged side-by-side between the two sets of connecting beams 340 along the length of the connecting beams 340. The connecting beams 340 and the support beams 350 together form a linear frame structure distributed along a plane. The multiple sets of support beams 350 between the connecting beams 340 ensure increased structural strength after the combination of the connecting beams 340 and the support beams 350, reducing the likelihood of breakage and deformation. Simultaneously, the support body, the first connecting seat 330, and the second connecting seat 320 form a receiving space for electrical components. In this embodiment, there are two support beams 350; in other embodiments, there may be one, three, etc., which is not limited here.

[0034] Reference Figure 4 As shown, in this embodiment, the second connector 320 has a circular plate-like structure. The outer diameter of the second connector 320 is the same as the inner diameter of the inner ring of the bottom shell 200. When the bottom shell 200 is rotated to its limit position, the second connector 320 is embedded in the edge of the inner ring opening of the bottom shell 200. A sealing cover 360 is provided at the bottom of the second connector 320. The outer edge of the sealing cover 360 is tightly fitted with the edge of the inner ring opening of the bottom shell 200. The second connector 320 and the sealing cover 360 can form a sealing structure at the bottom of the microphone.

[0035] Reference Figure 4 and Figure 5 As shown, the top edge of the bottom shell 200 is recessed inward along the circumference to form an annular recess 210, and the bottom end of the shell 100 extends downward to form an annular convex surface 110. The annular convex surface 110 is adapted to be embedded in the annular recess 210. The outer wall of the bottom shell 200 and the outer wall of the shell 100 are concentric and coplanar. The cooperation between the annular recess 210 and the annular convex surface 110 can form a labyrinth-like sealing structure between the bottom shell 200 and the shell 100, which can improve the waterproof and dustproof performance at the connection between the shell 100 and the bottom shell 200, and also improve the overall integrity of the bottom shell 200 and the shell 100 after assembly.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screwless microphone housing structure, characterized by, include: case; A bottom shell, wherein the bottom shell is disposed at the bottom opening of the housing; An inner support is disposed within the housing. The inner support includes a first connecting seat, a support body, and a second connecting seat. The first connecting seat and the second connecting seat are disposed at the upper and lower ends of the support body. The end of the support body facing the second connecting seat and the second connecting seat are both disposed within the bottom shell, and the end of the support body facing the second connecting seat is threadedly connected to the bottom shell.

2. The screwless microphone housing structure as described in claim 1, characterized in that: The supporting body includes connecting beams and supporting beams. There are two sets of connecting beams, which are arranged side by side at intervals along the length of the shell. The two ends of the connecting beams are fixedly connected to the first connecting seat and the second connecting seat, respectively.

3. The screwless microphone housing structure of claim 2, wherein: Both sets of connecting beams have external threads on the outer side walls of their ends facing the second connecting seat, and the two sets of external threads are concentrically arranged.

4. The screwless microphone housing structure of claim 3, wherein: The bottom shell is arranged in a ring shape, and the inner ring surface of the bottom shell is provided with an internal thread that matches the external thread. The bottom shell is connected to the end of the connecting beam by two sets of external threads.

5. The screwless microphone housing structure of claim 4, wherein: Both the connecting beam and the supporting beam are strip-shaped structures. There are multiple supporting beams, which are arranged side by side at intervals along the length of the connecting beam between two sets of connecting beams. The connecting beam and the supporting beam together form a wireframe structure distributed along the plane.

6. The screwless microphone housing structure as described in claim 5, characterized in that: The second connecting seat has a circular plate-shaped structure. The outer diameter of the second connecting seat is the same as the inner diameter of the inner ring of the bottom shell. When the bottom shell is rotated to the limit position, the second connecting seat is embedded in the edge of the inner ring opening of the bottom shell.

7. The screwless microphone housing structure as described in claim 6, characterized in that: The bottom of the second connecting seat is provided with a sealing cover, and the outer edge of the sealing cover is tightly fitted with the edge of the opening of the inner ring of the bottom shell.

8. The screwless microphone housing structure as described in claim 7, characterized in that: The top edge of the bottom shell is recessed inward along the circumference to form an annular recess, and the bottom end of the shell extends downward to form an annular convex surface, which is adapted to be embedded in the annular recess.

9. The screwless microphone housing structure as described in claim 8, characterized in that: The outer wall of the bottom shell and the outer wall of the outer shell are arranged concentrically and coplanarly.

10. The screwless microphone housing structure as described in claim 9, characterized in that: The second connector is configured to mount a connector terminal, and the second connector and the sealing cover have connector interfaces corresponding to the connector terminals.

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