Earphone front cavity microphone structure

Abstract

The utility model belongs to the technical field of earphones, and discloses an earphone front cavity microphone structure which comprises a protective shell, one end of the protective shell is fixedly connected with a universal sleeve, the inner surface of the universal sleeve is provided with a transmission line, one end of the universal sleeve is connected with an earphone front cavity, the inner surface of the protective shell is provided with a microphone body, and the microphone body is connected with the earphone front cavity. The microphone body is connected with a transmission line, a fixing ring is arranged at one end of the microphone body, an anti-skid cushion is arranged at the end, making contact with the microphone body, of the fixing ring, a circular plate is arranged at the end, away from the fixing ring, of the microphone body, and an inner rod is rotationally connected to one end of the circular plate. According to the utility model, the two long sliding grooves extending out of the protective shell and the two short sliding grooves located in the protective shell are arranged and matched with the sliding block on the connecting plate, so that under the push-pull and rotation effects of the adjusting block, the microphone can be quickly disassembled and accurately assembled without the help of a tool, the operation process is simplified, the maintenance difficulty is reduced, and the risk of damage to parts is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of headphone technology, specifically the microphone structure of the headphone front cavity. Background Technology

[0002] With the rapid development of audio technology, headphones have become an indispensable audio device in people's daily lives, widely used in communication, entertainment, and office scenarios. Within the internal structure of headphones, the microphone is a key component for voice pickup and transmission; its performance directly affects core functions such as call clarity and voice interaction quality. The headphone's front cavity, serving as the installation space for the microphone, plays a decisive role in the acquisition, transmission, and noise reduction of sound signals.

[0003] Meanwhile, the patent specification with application number CN212519388U discloses a microphone structure for the front cavity of an earphone, "including an earphone shell and an earphone front cavity formed in the earphone shell, the surface of the earphone shell forms a sound-emitting surface, a fixed cylinder located in the earphone front cavity is fixedly connected to the surface of the earphone shell corresponding to the sound-emitting surface, a microphone is fitted inside the fixed cylinder, a snap-fit ​​ring plate is fixedly fitted to the upper outer wall of the microphone, the snap-fit ​​ring plate is supported on the upper side of the fixed cylinder, a microphone protective sleeve is filled on the outside of the microphone, an annular threaded connecting block is fixedly connected to the lower end of the snap-fit ​​ring plate, and an annular threaded connecting groove that matches the annular threaded connecting block is opened at the upper end of the fixed cylinder";

[0004] The existing microphone structure in the front cavity of headphones is cumbersome to disassemble and install during use. It requires multiple steps with the help of tools such as screwdrivers, which is not only time-consuming, but also easy to damage the microphone and surrounding components during disassembly and assembly. In addition, it is difficult to balance the waterproof and breathable performance of its protective structure. Either the sound pickup effect is affected by excessive sealing, or the moisture and dust can enter due to excessive ventilation, which affects the lifespan of the microphone.

[0005] Therefore, a microphone structure for the front cavity of the earphone is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a microphone structure for the front cavity of an earphone, which has the advantages of simplifying the operation process, reducing maintenance difficulty, reducing the risk of component damage, and enabling the device to effectively extend the service life of the microphone.

[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes a protective shell, one end of which is fixedly connected to a universal sleeve. The inner surface of the universal sleeve is provided with a transmission line, and one end of the universal sleeve is connected to the front cavity of the earphone. The inner surface of the protective shell is provided with a microphone body, which is connected to the transmission line. One end of the microphone body is provided with a fixing ring, and the end of the fixing ring in contact with the microphone body is provided with an anti-slip pad. The end of the microphone body away from the fixing ring is provided with a circular plate. One end of the circular plate is rotatably connected to an inner rod, and the outer surface of the inner rod is slidably connected to an outer rod. One end of the inner rod is fixedly connected to a spring, and one end of the spring is fixedly connected to one side of the inner wall of the outer rod. One end of the outer rod is fixedly connected to a connecting plate, and the outer surface of the connecting plate is slidably connected to the inner surface of the protective shell. One end of the connecting plate is fixedly connected to an adjusting block. The inner wall of the protective shell is provided with a sliding track structure for quick assembly and disassembly.

[0008] Preferably, the slide structure includes two sliders, which are fixedly connected to the connecting plate. The inner wall of the protective shell is provided with a slide groove that cooperates with the two sliders. The inner surface of the protective shell is provided with an annular groove, and the four slide grooves are connected to the annular groove. The corresponding two slide grooves are the same size and are mirror images of each other.

[0009] Preferably, two of the grooves extend outside the protective housing, and the other two grooves are located inside the protective housing.

[0010] Preferably, the outer surface of the inner rod is fixedly connected to two guide blocks, and the inner surface of the outer rod is provided with guide grooves that cooperate with the two guide blocks.

[0011] Preferably, one end of the adjusting block is engraved with anti-slip texture.

[0012] Preferably, the fixing ring is fixedly connected to the protective shell, one end of the fixing ring is provided with an installation groove, the inner surface of the installation groove is provided with a waterproof and breathable mesh, and the side of the waterproof and breathable mesh that is in contact with the installation groove is made of iron, and the side of the installation groove that is in contact with the waterproof and breathable mesh is coated with magnetic coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting two long sliding grooves extending outside the protective shell and two short sliding grooves located inside, and in conjunction with the slider on the connecting plate, allows for quick disassembly and precise installation of the microphone without the aid of tools under the pushing, pulling and rotating action of the adjusting block. This simplifies the operation process, reduces maintenance difficulty, and reduces the risk of component damage.

[0015] 2. This utility model, by setting up a waterproof and breathable mesh, can ensure good air permeability and allow sound to be transmitted effectively under the adsorption effect of magnetic coating and iron inner wall, while blocking the intrusion of water vapor and dust. At the same time, it is easy to disassemble and replace the waterproof and breathable mesh, so that the device can effectively extend the service life of the microphone. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the internal structure of the protective shell of this utility model.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the protective shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer rod of this utility model.

[0020] In the diagram: 1. Protective outer shell; 11. Fixing ring; 12. Waterproof and breathable mesh; 13. Magnetic coating; 14. Mounting groove; 15. Circular plate; 16. Connecting plate; 17. Slider; 171. Annular groove; 172. Slide groove; 18. Adjusting block;

[0021] 19. Outer rod; 191. Guide block; 192. Inner rod; 193. Guide groove; 194. Spring;

[0022] 2. Universal sleeve; 20. Microphone body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4As shown, this utility model provides a microphone structure for the front cavity of an earphone, including a protective shell 1. One end of the protective shell 1 is fixedly connected to a universal sleeve 2. The inner surface of the universal sleeve 2 is provided with a transmission line, and one end of the universal sleeve 2 is connected to the front cavity of the earphone. The inner surface of the protective shell 1 is provided with a microphone body 20, which is connected to the transmission line. One end of the microphone body 20 is provided with a fixing ring 11. The end of the fixing ring 11 that contacts the microphone body 20 is provided with an anti-slip soft pad. The end of the microphone body 20 away from the fixing ring 11 is provided with a circular plate 15. One end of the circular plate 15 is rotatably connected to an inner rod 192, and the outer surface of the inner rod 192 slides. An outer rod 19 is connected to an inner rod 192, one end of which is fixedly connected to a spring 194. One end of the spring 194 is fixedly connected to the inner wall of one side of the outer rod 19. One end of the outer rod 19 is fixedly connected to a connecting plate 16. The outer surface of the connecting plate 16 is slidably connected to the inner surface of the protective shell 1. One end of the connecting plate 16 is fixedly connected to an adjusting block 18. The inner wall of the protective shell 1 is provided with a slide structure for quick disassembly and assembly. The structure composed of the spring 194, the inner rod 192, and the outer rod 19 can continuously provide elastic force after the slider 17 enters the internal slide groove 172, further stabilizing the microphone body 20 and preventing it from shifting due to external force.

[0025] Specifically, the slide structure includes two sliders 17, which are fixedly connected to the connecting plate 16. The inner wall of the protective shell 1 is provided with a slide groove 172 that works in conjunction with the two sliders 17. The inner surface of the protective shell 1 has an annular groove 171, and four slide grooves 172 are connected to the annular groove 171. The corresponding two slide grooves 172 are the same size and are mirror images of each other. The cooperation between the sliders 17 and the slide grooves 172 and the annular groove 171 provides a clear movement path for the installation and removal of the microphone body 20, making the operation more precise and smooth.

[0026] like Figures 1 to 4 As shown, two slides 172 extend outside the protective housing 1, and the other two slides 172 are located inside the protective housing 1. The slides 172 extending outside the protective housing 1 facilitate direct operation of the slider 17, enabling tool-free quick disassembly and installation; the slides 172 located inside, combined with the elastic force of the spring 194, can firmly fix the microphone body 20.

[0027] Furthermore, two guide blocks 191 are fixedly connected to the outer surface of the inner rod 192, and a guide groove 193 is provided on the inner surface of the outer rod 19 to cooperate with the two guide blocks 191, so that the elastic force of the spring 194 can act stably and accurately on the connecting plate 16 and the slider 17, thereby improving the reliability of the microphone body 20.

[0028] like Figures 1 to 4As shown, one end of the adjustment block 18 is engraved with anti-slip texture. The anti-slip texture on the adjustment block 18 increases the friction between the human hand and the adjustment block 18, making it easier and more reliable for the operator to control the movement of the slider 17 by operating the adjustment block 18, thus improving the operating experience.

[0029] It is worth noting that the fixing ring 11 is fixedly connected to the protective shell 1. One end of the fixing ring 11 is provided with an installation groove 14. The inner surface of the installation groove 14 is provided with a waterproof and breathable mesh 12. The side of the waterproof and breathable mesh 12 that is in contact with the installation groove 14 is made of iron. The end of the installation groove 14 that is in contact with the waterproof and breathable mesh 12 is coated with magnetic coating 13. By utilizing the adsorption force between the magnetic coating 13 and the iron surface of the waterproof and breathable mesh 12, the waterproof and breathable mesh 12 can be quickly installed and removed, making it convenient to clean and replace. At the same time, the waterproof and breathable mesh 12 can effectively block water vapor and dust from entering, protecting the microphone body 20.

[0030] Working principle and process: When installing the microphone body 20, the operator pushes the adjusting block 18, and the slider 17 slides in a straight line inward along the groove 172 outside the protective shell 1. At the same time, the inner rod 192 slides in the outer rod 19 and compresses the spring 194. When the slider 17 enters the annular groove 171, the adjusting block 18 is rotated, and the slider 17 rotates in the annular groove 171, so that the slider 17 is aligned with the groove 172 inside the protective shell 1. Then the adjusting block 18 is released, and the spring 194 restores its deformation and generates elastic force, pushing the slider 17 to slide in along the inner groove 172. The inner groove 172 guides precisely, so that the slider 17 reaches the designated position. The spring 194 continues to apply force to firmly press the connecting plate 16 against the inner wall of the protective shell 1. With the help of the anti-slip pad on the fixing ring 11, the microphone body 20 is double-fixed.

[0031] During disassembly, the operator presses the adjusting block 18, and the slider 17 overcomes the elastic force of the spring 194 and retracts from the inner slide groove 172 back to the annular groove 171. The inner slide groove 172 ensures that the slider 17 moves smoothly in the opposite direction. Then, the adjusting block 18 is rotated, and the slider 17 rotates in the annular groove 171 and aligns with the slide groove 172 extending to the outside. Then, under the elastic force of the spring 194, the adjusting block 18 is pushed, so that the slider 17 slides out along the outer slide groove 172. After that, the microphone body 20 can be removed to complete the disassembly of the microphone body 20.

[0032] During the use of the headphones, the waterproof and breathable mesh 12 is adsorbed into the mounting groove 14 by the magnetic coating 13. Under the action of the magnetic coating 13, the waterproof and breathable mesh 12 is easy to disassemble when it needs to be cleaned, and continues to perform the functions of waterproof, dustproof and breathable, ensuring the stable operation of the microphone body 20.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microphone structure for a headphone front cavity, comprising a protective housing (1), characterized in that: One end of the protective shell (1) is fixedly connected to a universal sleeve (2). The inner surface of the universal sleeve (2) is provided with a transmission line, and one end of the universal sleeve (2) is connected to the front cavity of the earphone. The inner surface of the protective shell (1) is provided with a microphone body (20). The microphone body (20) is connected to the transmission line, and one end of the microphone body (20) is provided with a fixing ring (11). The end of the fixing ring (11) that contacts the microphone body (20) is provided with an anti-slip pad. The end of the microphone body (20) away from the fixing ring (11) is provided with a circular plate (15). One end of the circular plate (15) is provided with a circular plate (15). An inner rod (192) is rotatably connected, and an outer rod (19) is slidably connected to the outer surface of the inner rod (192). A spring (194) is fixedly connected to one end of the inner rod (192), and one end of the spring (194) is fixedly connected to the inner wall of one side of the outer rod (19). A connecting plate (16) is fixedly connected to one end of the outer rod (19), and the outer surface of the connecting plate (16) is slidably connected to the inner surface of the protective shell (1). An adjusting block (18) is fixedly connected to one end of the connecting plate (16), and the inner wall of the protective shell (1) is provided with a slide structure for quick assembly and disassembly.

2. The earphone front cavity microphone structure according to claim 1, wherein: The slide structure includes two sliders (17), which are fixedly connected to the connecting plate (16). The inner wall of the protective shell (1) is provided with a slide groove (172) that cooperates with the two sliders (17). The inner surface of the protective shell (1) is provided with an annular groove (171), and the four slide grooves (172) are connected to the annular groove (171). The corresponding two slide grooves (172) are the same size, and the corresponding two slide grooves (172) are mirror-distributed.

3. The microphone structure for the front cavity of the earphone according to claim 2, characterized in that: Two of the grooves (172) extend outside the protective housing (1), and two other grooves (172) are located inside the protective housing (1).

4. The earphone front cavity microphone structure according to claim 1, wherein: Two guide blocks (191) are fixedly connected to the outer surface of the inner rod (192), and a guide groove (193) is provided on the inner surface of the outer rod (19) to cooperate with the two guide blocks (191).

5. The earphone front cavity microphone structure according to claim 1, wherein: One end of the adjustment block (18) is engraved with anti-slip texture.

6. The earphone front cavity microphone structure according to claim 1, wherein: The fixing ring (11) is fixedly connected to the protective shell (1). One end of the fixing ring (11) is provided with an installation groove (14). The inner surface of the installation groove (14) is provided with a waterproof and breathable mesh (12). The side of the waterproof and breathable mesh (12) that is in contact with the installation groove (14) is made of iron. The side of the installation groove (14) that is in contact with the waterproof and breathable mesh (12) is coated with magnetic coating (13).

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