Acoustic device sound outlet hole dust screen structure, acoustic device and manufacturing method of acoustic device sound outlet hole dust screen structure

Abstract

The invention provides an acoustic device sound outlet hole dustproof net structure, an acoustic device and a manufacturing method of the acoustic device sound outlet hole dustproof net structure. The acoustic device sound outlet hole dustproof net structure comprises a shell and a dustproof weaving assembly. The dustproof weaving assembly comprises a dustproof weaving net and a welding piece, the welding piece is provided with a weaving containing cavity and a wire hole set, the dustproof weaving net is composed of a first flexible wire set and a second flexible wire set, and the first flexible wire set and the second flexible wire set are interwoven into a net-shaped structure through the wire hole set. The dustproof woven mesh can realize fine aperture control through different weaving processes, meshes are uniformly distributed, foreign matters can be more effectively blocked, local blockage is reduced, and the problem of low aperture control precision of a traditional process is avoided. The aperture ratio can be changed by adjusting the number of the line groups, different scene requirements can be met, the sound field focusing degree can be improved by increasing the line groups, and the sound definition and loudness can be improved by reducing the line groups. If a flexible fiber material is adopted, the deformation resistance can be improved, the line body breakage risk is reduced, the steel sheet is light, thin and flexible, and the problem that a traditional die-cutting perforated steel sheet is difficult to integrate into the light and thin design is solved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of acoustic device dustproof net, and particularly relates to an acoustic device sound outlet dustproof net structure, an acoustic device and a manufacturing method thereof. BACKGROUND

[0002] The sound outlet part of the existing acoustic device, such as an in-ear earphone and a portable sound box, is a core area for realizing sound propagation, and at the same time needs to block dust and small foreign matters from entering the inside of the device to avoid damage to core components, so that the dustproof net becomes a key supporting component of the sound outlet part. The core requirement is to balance reliable dustproof effect and excellent acoustic transmission performance, that is, to block foreign matters while reducing resistance and attenuation of sound propagation as much as possible to avoid affecting acoustic quality such as sound field focusing degree and sound clarity.

[0003] At present, the dustproof structure commonly used in the sound outlet part of the acoustic device is a traditional punched hole steel sheet. The punched hole steel sheet is formed on a metal plate through a punching process to realize dustproof and sound transmission functions. However, the traditional punched hole steel sheet has defects of low aperture control precision, fixed opening rate and weak anti-deformation ability.

[0004] Specifically, due to the limitation of the punching process itself, the traditional punched hole steel sheet is mainly made of cold-rolled steel plate, stainless steel and other metal materials. The atomic structure characteristics of the materials make the punched hole steel sheet have strong rigidity, which makes the anti-deformation ability of the punched hole steel sheet weak and difficult to realize lightness and flexibility. SUMMARY

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art, provide an acoustic device sound outlet dustproof net structure, an acoustic device and a manufacturing method thereof, which can improve the dustproof opening rate through a woven net structure, and at the same time, according to the flexibility of each wire group, reduce the deformation stress of the wire group in the woven containing cavity to improve the acoustic quality.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] An acoustic device sound outlet dustproof net structure, comprising a shell and a dustproof woven assembly, the shell is provided with a fixed groove, the dustproof woven assembly comprises a dustproof woven net and a welding piece, the welding piece is provided with a woven containing cavity, the dustproof woven net is arranged in the woven containing cavity, and the welding piece is fixedly connected in the fixed groove.

[0008] The dustproof woven net comprises at least one first flexible wire group and at least one second flexible wire group, the welding piece is provided with at least one first wire hole group and at least one second wire hole group, each first wire hole group comprises two symmetrically arranged first wire penetrating holes, and each second wire hole group comprises two symmetrically arranged second wire penetrating holes.

[0009] One end of the first flexible wire group is threaded through one of the first threading holes, and the other end of the first flexible wire group is threaded through another of the first threading holes; one end of the second flexible wire group is threaded through one of the second threading holes, and the other end of the second flexible wire group is threaded through another of the second threading holes.

[0010] The first flexible wire group is wound around the second flexible wire group and forms a coil at the joint with the second flexible wire group, so that the first flexible wire group and the second flexible wire group are interwoven to form a woven mesh structure.

[0011] In one of the embodiments, the welding piece is any one of a square welding piece or a circular welding piece.

[0012] In one of the embodiments, the first flexible wire group and the second flexible wire group are at least one of a non-metallic wire group or a metallic wire group.

[0013] In one of the embodiments, the number of the first flexible wire groups is equal to the number of the second flexible wire groups, or the number of the first flexible wire groups is not equal to the number of the second flexible wire groups.

[0014] In one of the embodiments, the wire diameter of the first flexible wire groups is equal to the wire diameter of the second flexible wire groups, or the wire diameter of the first flexible wire groups is not equal to the wire diameter of the second flexible wire groups.

[0015] In one of the embodiments, the first flexible wire group includes at least one continuous wire.

[0016] In one of the embodiments, the second flexible wire group includes at least one continuous wire.

[0017] In one of the embodiments, the included angle formed by the interweaving of the first flexible wire group and the second flexible wire group is 1° to 179°.

[0018] In one of the embodiments, the included angle formed by the interweaving of the first flexible wire group and the second flexible wire group is equal to 90°.

[0019] The application also provides an acoustic device, which includes the shell, the acoustic component, and the dustproof mesh structure of the sound outlet of the acoustic device according to any one of the above embodiments.

[0020] The application also provides a manufacturing method of an acoustic device, which is used to manufacture the acoustic device according to the above embodiments, and further includes the following steps:

[0021] S101, providing the shell, and opening the fixing groove at the sound outlet of the shell;

[0022] S102, placing an acoustic component into the shell;

[0023] S103, providing the welding piece, opening a weaving accommodation cavity on the welding piece, and opening at least one first wire hole group and at least one second wire hole group around the weaving accommodation cavity;

[0024] S104, threading a second flexible wire group through the second wire hole group, so that part of the second flexible wire group is located in the weaving accommodation cavity;

[0025] S105, threading a first flexible wire group through the first wire hole group, so that part of the first flexible wire group is located in the weaving accommodation cavity, and the first flexible wire group is wound around the second flexible wire group at the joint with the second flexible wire group to form a coil, so that the first flexible wire group and the second flexible wire group are interwoven to form a woven mesh structure in the weaving accommodation cavity;

[0026] S106, aligning the welding piece with the woven mesh structure with the fixed groove according to the edge contour, and fixedly connecting the welding piece in the fixed groove by ultrasonic welding process.

[0027] Compared with the prior art, the present disclosure has at least the following advantages:

[0028] In the dustproof mesh structure of the sound outlet of the acoustic device, the dustproof woven mesh can realize fine aperture control through different weaving processes, so that the mesh holes are uniformly distributed. Compared with the traditional punched hole steel sheet, the dustproof woven mesh can more effectively block foreign matter and reduce the problem of local blockage; at the same time, it can also avoid the problem of low aperture control precision caused by process limitation of the traditional punched hole steel sheet.

[0029] In addition, by adjusting the number of the first flexible wire group and the second flexible wire group, the opening rate of the dustproof woven mesh can be directly changed, and then different scene requirements can be adapted. On the one hand, increasing the number of wire groups can reduce the opening rate, so that the mesh holes of the dustproof woven mesh become smaller and the structure becomes more compact, which can effectively block small dust from entering the device interior and can also direct the sound waves and reduce the scattering of sound signals to improve the focusing degree of the sound field. On the other hand, reducing the number of wire groups can increase the opening rate, so that the mesh hole size of the dustproof woven mesh becomes larger and the structure becomes more sparse, which can reduce the sound propagation resistance and attenuation, improve the sound clarity and loudness, and thus is more suitable for large sound systems and other scenes with high sound transmission requirements.

[0030] Furthermore, if the first and second flexible wire groups are woven from flexible fiber material to form a dustproof woven mesh, the deformation resistance of the dustproof woven mesh can be improved. When an external force is applied to a certain interlacing area, the coil of the first flexible wire group wrapped around the second flexible wire group can deform slightly, dispersing the local stress to adjacent wire group segments. Due to its high deformation resistance and resilience, it can quickly return to its original shape after being squeezed by external force. Even after multiple compressions, the dustproof woven mesh can still maintain good structural integrity, thereby reducing the risk of wire breakage caused by stress concentration. Moreover, compared with traditional die-cut perforated steel sheets, the flexible dustproof woven mesh is thin and flexible, solving the problem that traditional die-cut perforated steel sheets are difficult to integrate into thin and light designs due to thickness limitations. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the dustproof mesh structure of the sound output section of an acoustic device according to one embodiment.

[0033] Figure 2 for Figure 1 The diagram shows the structure of the dustproof braided assembly.

[0034] Figure 3 for Figure 1 A schematic diagram of one structure of the dustproof braided assembly shown;

[0035] Figure 4 for Figure 1 Another structural schematic diagram of the dustproof braided assembly shown;

[0036] Figure 5 for Figure 1 Another structural schematic diagram of the dustproof braided assembly shown. Detailed Implementation

[0037] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0038] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar terms are used for explanation only and are not intended to limit the scope of the disclosure.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] In order to better understand the technical solutions and beneficial effects of the disclosure, the disclosure will be further described in detail below in combination with specific embodiments:

[0041] As shown in the drawings, the sound outlet dustproof net structure 10 of the acoustic device according to an embodiment of the disclosure comprises a shell 100 and a dustproof woven assembly 200, the shell 100 is provided with a fixing groove 1001, the dustproof woven assembly 200 comprises a dustproof woven net 210 and a welding piece 220, the welding piece 220 is provided with a woven accommodating cavity, the dustproof woven net 210 is arranged in the woven accommodating cavity, and the welding piece 220 is fixedly connected in the fixing groove 1001. Figures 1 to 5

[0042] The dustproof woven net 210 comprises at least one first flexible wire group 211 and at least one second flexible wire group 212, the welding piece 220 is provided with at least one first wire hole group 2201 and at least one second wire hole group 2202, each first wire hole group 2201 comprises two first wire penetrating holes which are symmetrically arranged, and each second wire hole group 2202 comprises two second wire penetrating holes which are symmetrically arranged.

[0043] One end of the first flexible wire group 211 is arranged in one first wire penetrating hole, and the other end of the first flexible wire group 211 is arranged in another first wire penetrating hole; one end of the second flexible wire group 212 is arranged in one second wire penetrating hole, and the other end of the second flexible wire group 212 is arranged in another second wire penetrating hole.

[0044] The first flexible wire group 211 is wound on the second flexible wire group 212 at the joint of the first flexible wire group 211 and the second flexible wire group 212 and forms a coil, so that the first flexible wire group 211 and the second flexible wire group 212 are interwoven to form a woven net structure.

[0045] ​In the embodiment, the assembling process of the dustproof net structure 10 of the sound outlet of the acoustic device is as follows: first, the first flexible wire group 211 and the second flexible wire group 212 constituting the dustproof woven net 210 are respectively threaded into the corresponding first threading hole and the second threading hole of the welding piece 220. Specifically, one end of the first flexible wire group 211 is threaded into one first threading hole, and the other end is threaded into another first threading hole; the second flexible wire group 212 is threaded into the corresponding two second threading holes in this way, and the two ends of the first flexible wire group 211 are respectively welded and fixed in the first wire hole group 2201; the two ends of the second flexible wire group 211 are respectively welded and fixed in the second wire hole group 2202. Subsequently, at the joint of the first flexible wire group 211 and the second flexible wire group 212, the first flexible wire group 211 is wound around the second flexible wire group 212 and forms a coil, so that the two are interwoven to form a tight woven net structure, thereby constituting the dustproof woven net 210. Then, the assembled dustproof woven assembly 200 is installed into the fixed groove 1001 of the shell 100, and the welding piece 220 is firmly fixed in the fixed groove 1001 by welding, and finally the assembly of the entire dustproof net structure 10 is completed.

[0046] Further, in the actual use process of the acoustic device, sound is transmitted from the sound outlet, and the dustproof woven net 210 as a component on the sound propagation path effectively blocks impurities such as dust from entering the interior of the acoustic device while ensuring smooth passage of sound. Due to the weaving structure characteristics of the dustproof woven net 210, the propagation characteristics of the sound signal will be affected by the structure parameters such as the aperture of the woven net and the opening rate when passing through; at the same time, foreign matters such as dust will be blocked outside by the net structure. Specifically, the dustproof woven net 210 can realize fine aperture control through different weaving processes. Through plain weave, twill weave and other ways, finer aperture control can be realized, so that the mesh holes are uniformly distributed. Compared with the traditional punched hole steel sheet, the dustproof woven net 210 can more effectively block small foreign matters and reduce the problem of local blockage; at the same time, it can also avoid the aperture deviation problem that may exist due to process limitations of the traditional punched hole steel sheet.

[0047] Further, the opening rate of the dustproof woven net 210 refers to the proportion of the hole area in the total area of the dustproof net, which has a crucial influence on the sound outlet effect and dustproof performance of the acoustic device. By changing the number of the first flexible wire group 211 and the second flexible wire group 212, the opening rate of the dustproof woven net 210 can be flexibly adjusted. When a higher opening rate is required, the number of the first flexible wire group 211 and the second flexible wire group 212 can be appropriately reduced. Because the number of wire groups is reduced, the mesh holes formed by weaving are relatively increased and the area is increased, which can make more sound pass smoothly under the premise of ensuring a certain dustproof capacity, reduce the attenuation of sound in the propagation process, make the sound emitted by the acoustic device clearer and louder, and improve the sound outlet effect.

[0048] Conversely, when the application scenario has higher requirements for the directivity and purity of acoustic quality, the structure of the dustproof woven mesh 210 can be adjusted by increasing the number of the first flexible wire group 211 and the second flexible wire group 212. After the number of wire groups is increased, the weaving density of the dustproof woven mesh 210 is improved, the mesh hole size is reduced and the distribution is more regular, the opening rate is reduced, and the dense mesh hole structure can form directional constraint on the sound wave propagation path, reduce the scattering and diffusion of sound waves to non-target directions, and make the sound energy more concentrated in the preset propagation channel, thereby improving the sound field focusing degree and avoiding signal distortion caused by sound divergence.

[0049] On the other hand, if the dustproof woven mesh 210 adopts a fiber interwoven structure, its anti-deformation ability will be significantly better than that of a traditional die-cut hole steel sheet because the fiber has natural elastic recovery. For example, a nylon woven mesh can quickly recover to its original state after being slightly pressed and is not prone to the problem of easy breakage of a traditional die-cut hole steel sheet, thereby avoiding the risk of foreign matter entering the loudspeaker unit due to damage of the dustproof mesh. Specifically, the interwoven structure of the first flexible wire group 211 and the second flexible wire group 212 further amplifies the anti-deformation advantage of the flexible and thin fiber. In the stamping or weaving structure of a traditional die-cut steel sheet, the connection between the wires is mostly rigid contact, and when a local force is applied, the stress is easily concentrated at the connection point, causing the wires to be misaligned or the welding point to fall off, thereby causing mesh hole deformation and dustproof failure. The interwoven points of the flexible and thin fiber wire group are not rigidly fixed, but are flexibly constrained by the coil winding. When an external force acts on a certain interwoven area, the coil wound by the first flexible wire group 211 on the second flexible wire group 212 can slightly deform, dispersing the local stress to adjacent wire segments and avoiding damage to the wires caused by stress concentration. The dustproof woven mesh 210 woven by the first flexible wire group 211 and the second flexible wire group 212 of flexible and thin fibers has high anti-deformation ability and recovery, and can quickly recover to its original state after being pressed by an external force. Even after being pressed multiple times, the dustproof woven mesh 210 can still maintain good structural integrity, thereby reducing the risk of damage to the dustproof woven mesh 210 caused by external forces.

[0050] In the dustproof mesh structure 10 of the sound outlet of the above acoustic device, the dustproof woven mesh 210 can realize fine aperture control through different weaving processes, so that the mesh holes are uniformly distributed. Compared with a traditional die-cut hole steel sheet, the dustproof woven mesh 210 can more effectively block foreign matter and reduce the problem of local blockage. At the same time, it can also avoid the problem of low aperture control precision caused by process limitations of a traditional die-cut hole steel sheet.

[0051] In addition, by adjusting the number of the first flexible wire group 211 and the second flexible wire group 212, the opening rate of the dustproof woven mesh 210 can be directly changed, and then different scene requirements can be adapted. On the one hand, increasing the number of wire groups can reduce the opening rate, so that the mesh of the dustproof woven mesh 210 becomes smaller and the structure is more compact. The dustproof woven mesh 210 can effectively block the entry of small dust into the device, and can also direct the sound waves and reduce the scattering of sound signals, so as to improve the focusing degree of the sound field. On the other hand, reducing the number of wire groups can increase the opening rate, so that the mesh size of the dustproof woven mesh 210 is larger and the structure is more sparse. The dustproof woven mesh 210 can reduce the sound propagation resistance and attenuation, improve the sound clarity and loudness, and thus be more suitable for large sound systems and other scenes with high sound transmission requirements.

[0052] Further, if the first flexible wire group 211 and the second flexible wire group 212 are woven into the dustproof woven mesh 210 by using flexible fiber materials, the anti-deformation ability of the dustproof woven mesh 210 can be improved. When external force acts on a certain interlaced area, the coil of the first flexible wire group 211 wound on the second flexible wire group 212 can slightly deform, and the local stress can be dispersed to the adjacent wire group segment. Due to the high anti-deformation ability and recovery, the dustproof woven mesh 210 can quickly recover to the original state after being extruded by external force. Even after being extruded for many times, the dustproof woven mesh 210 can still maintain good structural integrity, thereby reducing the risk of wire body fracture caused by stress concentration of the dustproof woven mesh 210. Further, compared with the traditional die-cut hole steel sheet, the flexible dustproof woven mesh 210 has the characteristics of lightness and flexibility, and solves the problem that the traditional die-cut hole steel sheet is difficult to be integrated into the lightweight design due to the limited thickness.

[0053] As Figures 1 to 5As shown, in one embodiment, the welding piece 220 is any one of a square welding piece or a circular welding piece. In this embodiment, the square welding piece is mainly adapted to the large-size, regular square sound outlet scene such as the headphone ear cover sound outlet, the desktop sound box front sound outlet hole, etc.; and the circular welding piece is mainly adapted to the small-size, flexible shape sound outlet scene such as the in-ear earphone, the portable Bluetooth sound box, etc. Specifically, for the large-size sound outlet, the four right angles and four straight edges of the square welding piece provide more stable structural support. In the process of using the headphone, the ear cover may be squeezed and twisted by various external forces, and the square welding piece can better withstand these external forces, keep the position of the dustproof woven assembly 200 stable, prevent it from loosening or shifting, and ensure that the dustproof function is always effective. In the use of the desktop sound box, the square welding piece can also provide reliable fixation for the dustproof woven assembly 200 during the carrying or placing of the sound box, avoiding damage to the assembly due to vibration. On the other hand, the circular welding piece has no sharp corners and is more flexible during installation. In the production of in-ear earphones, due to the small size of the earphone, the installation space is limited, and the circular welding piece can be more conveniently adjusted to adapt to different installation positions and angles. At the same time, this flexibility is also conducive to coping with various different shapes and sizes of sound box shells in the production of portable Bluetooth sound boxes, improving the universality and adaptability of the product.

[0054] In another embodiment, the welding piece 220 is a polygonal welding piece. In this embodiment, the special-shaped structure of the polygonal welding piece can cooperate with the dustproof woven mesh 210 to realize directional sound transmission optimization. For example, when a triangular welding piece is assembled in the miniature sound outlet slot of smart glasses, the mesh holes of the dustproof woven mesh 210 can be arranged along the angle bisector direction of the triangle, which direction faces the user's ear canal, so that the sound waves are more concentratedly transmitted along the angle bisector, reducing scattering in other directions; at the same time, the edges and corners of the triangular welding piece serve as a hard structure, which can form directional reflection and guidance to the diffused sound waves, further enhancing the directional transmission effect of the sound, and avoiding user privacy leakage due to sound leakage. In addition, compared with the square welding piece, when the polygonal welding piece is subjected to external force, the external force can be more evenly distributed to each edge and corner thereof. Taking a hexagonal welding piece as an example, when the acoustic device is subjected to impact or extrusion, the six edges and six corners of the hexagon can jointly bear the external force, and compared with the square welding piece which is only supported by four edges and four corners, the hexagonal welding piece has stronger anti-deformation capability. This stable structure can ensure that the dustproof woven mesh 210 always remains flat and will not be loosened or twisted due to deformation of the welding piece; once the mesh surface is loosened or twisted, it will directly block part of the mesh holes or change the direction of the mesh holes, thereby affecting the dustproof effect and sound transmission quality.

[0055] As shown, in one embodiment, the welding piece 220 is any one of a square welding piece or a circular welding piece. In this embodiment, the square welding piece is mainly adapted to the large-size, regular square sound outlet scene such as the headphone ear cover sound outlet, the desktop sound box front sound outlet hole, etc.; and the circular welding piece is mainly adapted to the small-size, flexible shape sound outlet scene such as the in-ear earphone, the portable Bluetooth sound box, etc. Specifically, for the large-size sound outlet, the four right angles and four straight edges of the square welding piece provide more stable structural support. In the process of using the headphone, the ear cover may be squeezed and twisted by various external forces, and the square welding piece can better withstand these external forces, keep the position of the dustproof woven assembly 200 stable, prevent it from loosening or shifting, and ensure that the dustproof function is always effective. In the use of the desktop sound box, the square welding piece can also provide reliable fixation for the dustproof woven assembly 200 during the carrying or placing of the sound box, avoiding damage to the assembly due to vibration. On the other hand, the circular welding piece has no sharp corners and is more flexible during installation. In the production of in-ear earphones, due to the small size of the earphone, the installation space is limited, and the circular welding piece can be more conveniently adjusted to adapt to different installation positions and angles. At the same time, this flexibility is also conducive to coping with various different shapes and sizes of sound box shells in the production of portable Bluetooth sound boxes, improving the universality and adaptability of the product. Figures 1 to 5As shown, in one embodiment, the first flexible wire group 211 and the second flexible wire group 212 are at least one of a non-metallic wire group or a metallic wire group. In this embodiment, when the first flexible wire group 211 and the second flexible wire group 212 are made of non-metallic materials such as nylon, polyester fiber, etc., these materials have the characteristics of being light and soft. Since the non-metallic wire group generally has good flexibility, it can be easily bent and deformed. This makes the dustproof woven mesh 210 better adapt to the complex shape of the sound emitting part, whether it is the arc-shaped sound emitting port of the ear cover of the headphone or the irregular sound emitting hole of the portable speaker. The dustproof woven mesh 210 composed of the non-metallic wire group can tightly fit, thereby forming an effective dustproof barrier and ensuring the dustproof effect. In addition, compared with the metallic wire group, the non-metallic wire group is not easy to rust and oxidize, and can maintain the structural integrity and performance stability of the dustproof woven mesh 210, thereby prolonging the service life of the dustproof mesh structure 10 of the sound emitting part of the entire acoustic device. When the first flexible wire group 211 and the second flexible wire group 212 are made of metallic materials such as stainless steel, copper, etc., the metallic wire group has high strength and hardness. In acoustic devices such as headphones that have high requirements for the strength of the dustproof mesh, the dustproof woven mesh 210 woven by the metallic wire group can withstand greater external force impact, such as collision and extrusion during the transportation of the speaker, and is not easy to be damaged, thereby providing reliable protection for the internal part of the acoustic device and preventing dust and foreign matter from entering and damaging the speaker unit.

[0056] In another embodiment, the first flexible wire group 211 is a non-metallic wire group, and the second flexible wire group 212 is a metallic wire group, or vice versa. In this embodiment, the different materials of the wire groups have different responses to sound frequencies. The non-metallic wire group, such as nylon or polyester fiber, has weak blocking and absorbing effects on medium and high frequency sound waves due to its own flexibility and elasticity, allowing medium and high frequency sound to pass more smoothly, reducing attenuation in the medium and high frequency band, and making the sound clearer and brighter. The metallic wire group, such as stainless steel or copper, has high rigidity and density, and has little hindrance to low frequency sound, while having certain reflection and scattering effects on medium and high frequency sound. When the first flexible wire group 211 is a non-metallic wire group and the second flexible wire group 212 is a metallic wire group, they cooperate with each other to adjust the frequency response curve of the acoustic device to some extent, making the distribution of sound in different frequency bands more balanced and improving the overall sound quality. On the other hand, the elastic modulus of the non-metallic wire group and the metallic wire group is different when the dustproof woven mesh 210 is subjected to external force. The non-metallic wire group has good flexibility and elasticity, and can deform to some extent when subjected to external force, absorbing and dispersing part of the stress. The metallic wire group has high strength and rigidity and can withstand large external forces without significant deformation. When the two are used together, the elastic deformation of the non-metallic wire group can evenly distribute the external force to the surrounding metallic wire group, while the metallic wire group can provide stable support to prevent the dustproof woven mesh 210 from being damaged by excessive local stress. This stress dispersion mechanism allows the dustproof woven mesh 210 to maintain its structural integrity when subjected to external forces such as compression and collision, improving its resistance to deformation and service life. Further, when the first flexible wire group 211 and the second flexible wire group 212 are interwoven to form a woven mesh structure, the winding method of the non-metallic wire group and the metallic wire group can increase the connection firmness between them. Since the non-metallic wire group has a certain flexibility, it can better wrap around the metallic wire group to form a tight connection. The rigidity of the metallic wire group can ensure the stability of the winding part and prevent the winding from loosening. This mixed winding method makes the overall structure of the dustproof woven mesh 210 more compact, and the connection between the wire groups more secure, reducing the likelihood of loosening or falling off during long-term use, improving the reliability and stability of the dustproof mesh structure.

[0057] As Figures 1 to 5As shown, in one embodiment, the number of first flexible wire groups 211 is equal to the number of second flexible wire groups 212, or the number of first flexible wire groups 211 and second flexible wire groups 212 are not equal. In this embodiment, when the number of first flexible wire groups 211 and second flexible wire groups 212 is equal, the dustproof woven mesh 210 can form a relatively regular and uniform mesh structure during the weaving process. This regular weaving method makes the mesh opening ratio relatively stable and easy to control, thereby achieving a high opening ratio while ensuring a certain strength; a high opening ratio can reduce the obstruction in the sound propagation process, allowing more sound waves to pass smoothly through the dustproof woven mesh 210, thereby ensuring the volume and clarity of the sound.

[0058] Furthermore, if the number of the first flexible thread group 211 and the second flexible thread group 212 are not equal, the woven mesh structure will exhibit different characteristics. This unequal number setting can be adjusted according to actual needs to achieve the desired open area ratio. For example, when the number of the first flexible thread group 211 is larger and the number of the second flexible thread group 212 is smaller, the woven mesh openings may be relatively larger in one direction and relatively smaller in another, forming an asymmetrical open area structure. (See details...) Figure 3 and Figure 5 This structure allows for targeted optimization of sound propagation based on the specific requirements of the acoustic device's sound output section. For example, in some acoustic devices that require sound propagation in a specific direction, adjusting the number of wire groups can increase the aperture ratio in the desired direction, thereby improving the sound transmittance in that direction while effectively blocking dust and foreign objects from other directions, achieving a better balance between dustproofing and acoustic performance.

[0059] like Figures 1 to 5 As shown, in one embodiment, the diameter of the first flexible thread group 211 is equal to the diameter of the second flexible thread group 212, or the diameters of the first flexible thread group 211 and the second flexible thread group 212 are not equal. In this embodiment, by adjusting the diameters of the first flexible thread group 211 and the second flexible thread group 212, flexible control over the shape and size of the mesh can be achieved. If the diameter of the first flexible thread group 211 is set to be thicker and the diameter of the second flexible thread group 212 is set to be thinner, during the weaving process, the thicker thread group can play a major supporting role, while the thinner thread group can form a denser interweaving between the thicker thread groups, thereby forming a mesh structure with different aperture levels as a whole. This structure can be optimized according to the particle size distribution of foreign objects such as dust. For larger particles, the larger mesh formed by the coarser wires can play a preliminary blocking role; while for smaller particles, the fine interwoven part formed by the finer wires can perform more precise filtration, further improving the dust prevention and foreign object blocking effect.

[0060] Furthermore, the dustproof woven mesh 210, created by yarn groups with unequal diameters, allows for more targeted adjustment of sound wave propagation. Specifically, the reflection and attenuation characteristics of the mesh for different frequency sound waves can be altered by adjusting the yarn diameter. Larger meshes formed by thicker yarn groups obstruct low-frequency sound waves less, thus promoting their propagation. Conversely, the finer, more densely interwoven sections of thinner yarn groups result in greater reflection and attenuation of high-frequency sound waves. However, due to the materials used in the yarn groups, such as flexible fibers or fine metal wires, the absorption loss of sound waves is minimal, allowing high-frequency sound quality to be preserved. This achieves a better balance between dustproof and acoustic performance, providing users with a superior listening experience. Even further, when the diameters of the first flexible yarn group 211 and the second flexible yarn group 212 are equal, the mesh formed by their interweaving during the weaving process is regular in shape and uniform in size. This uniform mesh structure provides stable characteristics for sound wave propagation. The uniform mesh allows sound waves to pass through in a relatively consistent manner, reducing sound wave scattering and interference caused by inconsistent mesh sizes. During the propagation of sound signals, each mesh hole has a basically the same effect on the sound wave, which can ensure that the direction and intensity of sound propagation are relatively stable. This allows the sound to maintain good timbre and pitch after passing through the dustproof woven mesh 210, providing users with a clear and pure sound experience.

[0061] like Figures 1 to 5 As shown, in one embodiment, the first flexible wire group 211 includes at least one continuous wire. In this embodiment, when the first flexible wire group 211 is composed of multiple single wires, the interweaving of the first flexible wire group 211 composed of multiple single wires and the second flexible wire group 212 is more compact and complex during the weaving process. Compared to the first flexible wire group 211 composed of a single thick wire, the mesh edges formed after the first flexible wire group 211 composed of multiple single wires interweaves with the second flexible wire group 212 are more irregular. This irregularity makes it more difficult for foreign objects such as dust to pass through the mesh, thereby effectively improving the dustproof capability. Different numbers of single wire combinations will affect the wire diameter and overall flexibility of the first flexible wire group 211, thereby regulating the acoustic performance. If the first flexible wire group 211 is composed of fewer single wires and has a relatively thinner wire diameter, it will have less obstruction to high-frequency sound waves, which is conducive to the propagation of high-frequency sounds, making the sound clearer and brighter, and better preserving the high-frequency details in the music. When the first flexible wire group 211 is composed of more single wires with a thicker wire diameter, its reflection and attenuation effect on low-frequency sound waves is relatively weakened, which is conducive to the passage of low-frequency sounds, enhances the low-frequency performance of the sound, and makes the music more profound and powerful.

[0062] Furthermore, after multiple individual wires are combined to form the first flexible wire group 211, they interweave with the second flexible wire group 212 during the weaving process, forming a complex and stable mesh structure. During the use of the acoustic device, when the dustproof braided mesh 210 is subjected to external force pulling or compression, the interaction between the multiple individual wires can disperse the external force and reduce the stress borne by each individual wire, thereby effectively preventing the dustproof braided mesh 210 from breaking or deforming, and ensuring the long-term effectiveness of the dustproof function.

[0063] like Figures 1 to 5 As shown, in one embodiment, the second flexible wire group 212 includes at least one continuous wire. In this embodiment, if the second flexible wire group 212 is composed of fewer individual wires with a relatively thinner diameter, it obstructs high-frequency sound waves less, which is conducive to the smooth propagation of high-frequency sounds and can better preserve the high-frequency details in the music, making the sound clearer and more transparent. When the second flexible wire group 212 is composed of more individual wires with a thicker diameter, its reflection and attenuation effect on low-frequency sound waves is relatively weakened, which is conducive to the passage of low-frequency sounds, enhances the low-frequency performance of the sound, and makes the music more layered and impactful. For example, when playing music rich in low frequencies such as drums, it can show a fuller and more powerful bass effect. According to the specific needs of the acoustic device, the frequency response characteristics of the sound can be precisely adjusted by reasonably adjusting the number of individual wires in the second flexible wire group 212 to achieve the ideal sound quality effect. After multiple individual wires are combined to form the second flexible wire group 212, they intertwine with the first flexible wire group 211 during the weaving process to form a complex and stable mesh structure. During the use of the acoustic device, when the dustproof braided mesh 210 is subjected to external force pulling or squeezing, the interaction between multiple single wires can disperse the external force and reduce the stress borne by the single wire, thereby effectively preventing the dustproof braided mesh 210 from breaking or deforming, so as to ensure the long-term effectiveness of the dustproof function.

[0064] Furthermore, the flexible design of the second flexible wire group 212 to adapt to the first flexible wire group 211 gives the second flexible wire group 212 and the first flexible wire group 211 composite structural characteristics. Specifically, if the first flexible wire group 211 is a single thin wire, the second flexible wire group 212 can use a single wire of the same diameter to form a fine interweaving of two sets of thin wires, realizing an ultra-dense mesh structure to adapt to miniature sound output parts such as TWS earphones; if the first flexible wire group 211 is multiple parallel thick wires, the second flexible wire group 212 can use multiple parallel single wires. Through the interweaving structure of the two sets of wires, while ensuring the strength of the mesh surface, a high opening rate is maintained to adapt to scenarios such as desktop speakers that need to balance sound transmission and protection.

[0065] like Figures 1 to 5As shown, in one embodiment, the included angle A formed by the interlacing of the first flexible wire group 211 and the second flexible wire group 212 ranges from 1° to 179°. In this embodiment, when the included angle A is within a relatively large and reasonable range of 60°-120°, the sound waves will scatter more regularly when passing through the mesh, allowing the sound to be distributed more evenly around the sound output part, avoiding excessive concentration of sound in one direction, thereby improving the uniformity of the sound field. For example, in active noise-canceling headphones, if the included angle A is controlled within 60°-120° to achieve a uniform sound field distribution, this distribution helps to reduce noise-canceling signal interference caused by uneven sound field, improves the noise-canceling effect, and makes the noise-canceling depth more stable.

[0066] Specifically, different angles A produce different attenuation and transmission effects on sound waves of different frequencies. For low-frequency sound waves, since their wavelengths are usually much longer than the mesh size, the mesh shape has less impact on their transmission obstruction and is mainly controlled by the aperture ratio. When the angle A is small, with a reasonable aperture ratio design, low-frequency sound waves can be ensured to propagate smoothly, thereby enhancing the low-frequency performance of the sound and making the music more substantial and powerful. For high-frequency sound waves, their wavelengths are shorter and they are more sensitive to the mesh shape. Adjusting the angle A can change the mesh's reflection and attenuation characteristics for high frequencies. Furthermore, by reasonably setting the angle A, such as orthogonal 90 degrees, a certain high-frequency transmittance can be ensured while reducing the harshness caused by high-frequency stray reflections, making the sound softer, clearer, and retaining more musical details. The ability to adapt the angle A to different sound fields and frequency requirements allows this dustproof mesh structure to be widely used in various types of acoustic devices, effectively improving the product's versatility and market competitiveness.

[0067] like Figures 1 to 5 As shown, in one embodiment, the included angle A formed by the interlacing of the first flexible thread group 211 and the second flexible thread group 212 is equal to 90°. In this embodiment, when the included angle A is 90°, the first flexible thread group 211 and the second flexible thread group 212 are interlaced perpendicularly in space. This perpendicular interlacing method makes the woven mesh shape regular and uniform. Under the premise that the diameters of the first flexible thread group 211 and the second flexible thread group 212 are equal, square meshes can be formed. Compared with non-square regular or irregular meshes formed at other included angles, square meshes have higher dimensional consistency in all directions, thereby ensuring a uniform distribution of the opening rate on the entire dustproof woven mesh 210.

[0068] Furthermore, by changing the number of the first flexible wire group 211 and the second flexible wire group 212, the opening ratio of the dustproof woven mesh 210 can be adjusted more flexibly based on the 90° angle interlacing. When it is necessary to increase the opening ratio, the number of the first flexible wire group 211 and the second flexible wire group 212 can be appropriately reduced. For example, the original large number of wire groups can be simplified, increasing the spacing between the wire groups. Under the 90° angle interlacing, the increased spacing between the wire groups directly leads to an increase in the mesh area, thereby increasing the opening ratio; a higher opening ratio allows more sound waves to pass through the dustproof woven mesh 210 smoothly, reducing sound attenuation. Conversely, when it is necessary to reduce the opening ratio to enhance the dustproof effect, the number of the first flexible wire group 211 and the second flexible wire group 212 can be increased. Increasing the number of wire groups will make the interlacing between the wire groups tighter, the mesh area will decrease accordingly, and the opening ratio will decrease.

[0069] Furthermore, the 90° angled weaving, combined with specific weaving techniques, allows for more precise control over the opening ratio. For example, when using a plain weave, the 90° angled weaving makes the interweaving of the first flexible yarn group 211 and the second flexible yarn group 212 more regular, and the size and shape of the mesh are easier to control. By adjusting the density of the plain weave, i.e., changing the number of the first flexible yarn group 211 and the second flexible yarn group 212, the opening ratio can be precisely adjusted. This precise control allows the dustproof woven mesh 210 to better adapt to various complex sound propagation and dustproof requirements, thereby improving the quality and performance of the dustproof mesh structure 10 at the sound outlet of the acoustic device.

[0070] This application also provides an acoustic device, including a housing, acoustic components, and a dustproof mesh structure 10 for the sound output section of the acoustic device according to any of the above embodiments. In this embodiment, the housing serves as the external support frame of the acoustic device, and its interior has a receiving cavity and a sound output channel. During assembly, the acoustic components are fixedly installed in the receiving cavity, and the sound-emitting end of the sound-emitting component is aligned with one end of the sound output channel. The dustproof mesh structure 10 for the sound output section of the acoustic device is fixedly connected to the fixing groove 1001 of the sound output section of the housing through a welded part, so that the dustproof mesh 210 completely covers the other end of the sound output channel, thereby forming a complete sound propagation path from the sound-emitting component, the sound output channel, the dustproof mesh to the external environment. In the actual use of the acoustic device, the sound generated by the vibration of the sound-emitting component is first directionally transmitted to the sound output section through the sound output channel, and then transmitted through the dustproof mesh 210. At this time, the dustproof mesh 210 serves as the last protective component of the sound propagation path, ensuring that the sound passes smoothly while effectively blocking dust and other impurities from entering the interior of the acoustic device. Due to the woven structure characteristics of the dustproof woven mesh 210, the propagation characteristics of sound signals are affected by structural parameters such as the mesh aperture and open area ratio when they pass through; simultaneously, dust and other foreign objects are blocked by the mesh structure. Specifically, the dustproof woven mesh 210 can achieve precise aperture control through different processes such as plain weave and twill weave, thereby ensuring a uniform distribution of mesh openings. Plain weave and twill weave methods allow for more precise aperture control, resulting in a more uniform mesh distribution. Compared to traditional stamped and die-cut perforated steel sheets, the dustproof woven mesh 210 can more effectively block small foreign objects and reduce local blockage problems; at the same time, it avoids the aperture deviation problems that may exist in traditional stamped and die-cut perforated steel sheets due to process limitations. Furthermore, the open area ratio of the dustproof woven mesh 210 refers to the proportion of the area of ​​the holes in the dustproof mesh to the total area, which has a crucial impact on the sound output effect and dustproof performance of the acoustic device. By changing the number of the first flexible wire group 211 and the second flexible wire group 212, the open area ratio of the dustproof woven mesh 210 can be flexibly adjusted. When a higher open area ratio is required, the number of the first flexible wire group 211 and the second flexible wire group 212 can be appropriately reduced. Because the number of wire groups is reduced, the number of mesh openings formed by the weave increases and the area of ​​the mesh increases. While maintaining a certain dustproof capability, this allows more sound to pass through smoothly, reducing sound attenuation during propagation and making the sound emitted by the acoustic device clearer and louder, thus improving the sound output effect. Conversely, when the application scenario has high requirements for the directionality and purity of acoustic quality, the structure of the dustproof woven mesh 210 can be adjusted by increasing the number of the first flexible wire group 211 and the second flexible wire group 212.With an increased number of wire groups, the weaving density of the dustproof braided mesh 210 increases, the mesh size decreases and the distribution becomes more regular, and the open area ratio decreases accordingly. The dense mesh structure can directionally constrain the sound wave propagation path, reducing the scattering and diffusion of sound waves in non-target directions, making the sound energy more concentrated in the preset propagation channel, thereby improving the sound field focusing and avoiding signal distortion caused by sound divergence. On the other hand, if the dustproof braided mesh 210 adopts a fiber interwoven structure, its resistance to deformation will be significantly better than that of traditional die-cut perforated steel sheets due to the natural elastic recovery of fibers. For example, nylon braided mesh can quickly return to its original shape after being slightly compressed, and is less prone to breakage like traditional die-cut perforated steel sheets, thus avoiding the risk of foreign objects entering the speaker unit due to dustproof mesh damage. Specifically, the winding coil interwoven structure of the first flexible wire group 211 and the second flexible wire group 212 further amplifies the deformation resistance advantage of the fine fibers. In traditional die-cut steel sheet stamping or weaving structures, the connections between wires are mostly rigid. When localized forces are applied, stress easily concentrates at the connection points, leading to wire misalignment or weld detachment, which in turn causes mesh deformation and dustproof failure. In contrast, the interlacing points of the fine fiber wire groups are not rigidly fixed, but rather formed by flexible constraints created by coil winding. When an external force is applied to a certain interlacing area, the coil of the first flexible wire group 211 wound around the second flexible wire group 212 can deform slightly, dispersing the localized stress to adjacent wire group segments and preventing wire damage caused by stress concentration. The dustproof woven mesh 210, woven from the first flexible wire group 211 and the second flexible wire group 212 of fine fibers, has high resistance to deformation and resilience. It can quickly recover its original shape after being compressed by external forces. Even after multiple compressions, the dustproof woven mesh 210 can still maintain good structural integrity, thereby reducing the risk of damage to the dustproof woven mesh 210 caused by external forces.

[0071] This application also provides a method for manufacturing an acoustic device, used to manufacture the acoustic device of the above embodiments. Further, the method for manufacturing the acoustic device includes the following steps:

[0072] S101, Provide a housing, and provide a fixing groove in the sound outlet part of the housing;

[0073] S102. Place the acoustic components into the housing;

[0074] S103. A weldable component is provided, a braided receiving cavity is formed on the weldable component, and at least one first wire hole group and at least one second wire hole group are formed around the braided receiving cavity; in this embodiment, the first wire hole group includes two symmetrically arranged first threading holes, and the second wire hole group includes two symmetrically arranged second threading holes, such that one end of the first flexible wire group passes through one first threading hole, and the other end of the first flexible wire group passes through another first threading hole; one end of the second flexible wire group passes through one second threading hole, and the other end of the second flexible wire group passes through another second threading hole, thereby forming a symmetrical mesh structure.

[0075] In another embodiment, the first wire hole group has multiple first wire holes, and the second wire hole group has multiple second wire holes. This allows one end of the first flexible wire group to pass through one of its first wire holes, and then through the remaining first wire holes. Similarly, one end of the second flexible wire group to pass through one of its second wire holes, and then through the remaining second wire holes, thus forming an asymmetrical irregular mesh structure. Specifically, the asymmetrical arrangement of multiple first and second wire holes creates an asymmetrical irregular mesh structure, significantly improving the adaptability of the dustproof mesh structure for acoustic devices with different shapes. In practical applications, many acoustic devices have varying shapes of sound outlets, and traditional symmetrical mesh structures may not fit perfectly. However, the asymmetrical irregular mesh structure can be customized according to the specific shape of the sound outlet, allowing the dustproof woven mesh to fit tightly against the sound outlet, thereby improving the adaptability of the acoustic device sound outlet dustproof mesh structure 10 to meet the needs of acoustic devices with different shapes.

[0076] S104. Pass the second flexible thread group through the second thread hole group, so that part of the second flexible thread group is located in the braiding cavity.

[0077] S105. The first flexible wire group is threaded through the first wire hole group, so that part of the first flexible wire group is located in the braiding cavity, and the first flexible wire group is wound around the second flexible wire group at the junction to form a coil, so that the first flexible wire group and the second flexible wire group interweave to form a braided mesh structure located in the braiding cavity; in this embodiment, the first flexible wire group is wound around the second flexible wire group at the junction to form a coil, and the number of turns is single turns, so that the braided mesh structure formed by the interweaving of the first flexible wire group and the second flexible wire group is more compact.

[0078] In another embodiment, the first flexible wire group is wound around the second flexible wire group at the junction to form a coil, with multiple turns, to make the woven mesh structure formed by the interlacing of the first and second flexible wire groups more robust, thereby enhancing the connection between the first and second flexible wire groups. Furthermore, the multiple turns significantly increase the friction and bonding force between the wire groups, effectively preventing the wire groups from loosening or falling off during use.

[0079] S106. Align the welded part with the woven mesh structure with the fixing groove according to the edge contour, and fix the welded part in the fixing groove by ultrasonic welding process.

[0080] Compared with the prior art, this disclosure has at least the following advantages:

[0081] In the aforementioned acoustic device's sound-emitting dustproof mesh structure 10, the dustproof woven mesh 210 can achieve precise aperture control through different weaving processes, resulting in a uniform distribution of mesh openings. Compared to traditional stamped and die-cut perforated steel sheets, the dustproof woven mesh 210 can more effectively block foreign objects and reduce local blockage problems; at the same time, it can also avoid the problem of low aperture control accuracy caused by process limitations in traditional stamped and die-cut perforated steel sheets.

[0082] Furthermore, by adjusting the number of the first flexible wire group 211 and the second flexible wire group 212, the opening ratio of the dustproof braided mesh 210 can be directly changed, thereby adapting to different scenario requirements. On the one hand, increasing the number of wire groups can reduce the opening ratio, making the mesh of the dustproof braided mesh 210 smaller and the structure tighter. This can effectively block fine dust from entering the device and also guide sound waves in a directional manner, reducing sound signal scattering and improving sound field focusing. On the other hand, reducing the number of wire groups can increase the opening ratio, making the mesh size of the dustproof braided mesh 210 larger and the structure sparser. This can reduce sound propagation resistance and attenuation, improving sound clarity and loudness, thus making it more suitable for scenarios with high sound transmission requirements, such as large speakers.

[0083] Furthermore, if the first flexible wire group 211 and the second flexible wire group 212 are woven from flexible fiber material to form a dustproof woven mesh 210, the deformation resistance of the dustproof woven mesh 210 can be improved. When an external force is applied to a certain interlacing area, the coil of the first flexible wire group 211 wrapped around the second flexible wire group 212 can deform slightly, dispersing the local stress to adjacent wire group segments. Due to its high deformation resistance and resilience, it can quickly recover its original shape after being squeezed by external force. Even after multiple compressions, the dustproof woven mesh 210 can still maintain good structural integrity, thereby reducing the risk of wire breakage caused by stress concentration in the dustproof woven mesh 210. Moreover, compared with traditional die-cut perforated steel sheets, the flexible dustproof woven mesh 210 has the characteristics of being thin and flexible, solving the problem that traditional die-cut perforated steel sheets are difficult to integrate into thin and light designs due to thickness limitations.

[0084] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A dustproof mesh structure for the sound output section of an acoustic device, comprising a housing and a dustproof braiding assembly, wherein the housing has a fixing groove, the dustproof braiding assembly includes a dustproof braided mesh and a welded component, the welded component has a braiding receiving cavity, the dustproof braided mesh is disposed within the braiding receiving cavity, and the welded component is fixedly connected to the fixing groove, characterized in that... The dustproof woven mesh includes at least one first flexible wire group and at least one second flexible wire group. The welded component has at least one first wire hole group and at least one second wire hole group. Each first wire hole group includes two symmetrically arranged first threading holes, and each second wire hole group includes two symmetrically arranged second threading holes. One end of the first flexible wire group is inserted through a first wire hole, and the other end of the first flexible wire group is inserted through another first wire hole; one end of the second flexible wire group is inserted through a second wire hole, and the other end of the second flexible wire group is inserted through another second wire hole. In this configuration, the first flexible wire group is wound around the second flexible wire group at the junction with the second flexible wire group to form a coil, so that the first flexible wire group and the second flexible wire group interweave to form a woven mesh structure.

2. The dustproof mesh structure for the sound output section of the acoustic device according to claim 1, characterized in that, The welded component can be either a square welded component or a round welded component.

3. The dustproof mesh structure for the sound output section of the acoustic device according to claim 1, characterized in that, The first flexible wire group and the second flexible wire group are at least one of non-metallic wire groups or metallic wire groups.

4. The dustproof mesh structure for the sound output section of the acoustic device according to claim 1, characterized in that, The number of the first flexible wire group is equal to the number of the second flexible wire group, or the number of the first flexible wire group is not equal to the number of the second flexible wire group.

5. The dustproof mesh structure for the sound output section of the acoustic device according to claim 1, characterized in that, The diameter of the first flexible wire group is equal to that of the second flexible wire group, or the diameter of the first flexible wire group is not equal to that of the second flexible wire group.

6. The dustproof mesh structure for the sound output section of the acoustic device according to claim 5, characterized in that, The first flexible wire assembly includes at least one continuous wire.

7. The dustproof mesh structure for the sound output section of the acoustic device according to claim 5, characterized in that, The second flexible wire assembly includes at least one continuous wire.

8. The dustproof mesh structure for the sound output section of the acoustic device according to claim 1, characterized in that, The angle formed by the interlacing of the first flexible line group and the second flexible line group is between 1° and 179°.

9. The dustproof mesh structure for the sound output section of the acoustic device according to claim 8, characterized in that, The angle formed by the interlacing of the first flexible wire group and the second flexible wire group is equal to 90°.

10. An acoustic device, characterized in that, It includes the housing, acoustic components, and the dustproof mesh structure of the sound outlet of the acoustic device as described in any one of claims 1 to 9.

11. A method for manufacturing an acoustic device, characterized in that, The method for manufacturing the acoustic device according to claim 10 includes the following steps: S101. Provide a housing, and provide a fixing groove in the sound outlet part of the housing; S102. Place the acoustic components into the housing; S103. Provide a welded component, on which a braiding receiving cavity is formed, and around the braiding receiving cavity, at least one first wire hole group and at least one second wire hole group are formed. S104. Pass the second flexible thread group through the second thread hole group, so that a portion of the second flexible thread group is located in the braiding cavity; S105. Pass the first flexible thread group through the first thread hole group, so that part of the first flexible thread group is located in the braiding cavity, and make the first flexible thread group wrap around the second flexible thread group at the junction with the second flexible thread group to form a coil, so that the first flexible thread group and the second flexible thread group interweave to form a braided mesh structure located in the braiding cavity. S106. Align the welded part with the woven mesh structure with the fixing groove according to the edge contour, and fix the welded part in the fixing groove by ultrasonic welding process.

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