Tuning structure, sound production device, and audio device

Abstract

This utility model discloses a tuning structure, a sound-generating device, and an audio device, relating to the field of audio device technology. The tuning structure includes a mounting bracket and a tuning section. The mounting bracket has a ring-shaped mounting ring plate with an air vent. The tuning section is made of metal and has multiple vent holes. The tuning section is located on the mounting ring plate, and the multiple vent holes correspond to the air vents.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and in particular to a tuning structure, a sound-generating device, and an audio device. Background Technology

[0002] In the design and manufacturing of headphones, the ventilation performance of the rear cavity of the speaker structure has a direct impact on the headphone's core performance, such as sound quality and stability.

[0003] In existing technologies, the speaker structure of headphones typically achieves rear cavity ventilation using traditional methods. Specifically, this is often achieved by directly creating ventilation holes in the frame or by covering the ventilation channels with flexible materials such as fabric or sponge. However, directly creating holes in the frame is limited by manufacturing precision, making it difficult to precisely control the size and number of holes, which can easily lead to fluctuations in ventilation. Similarly, when using flexible materials such as fabric or sponge, the material's elasticity and breathability change with ambient temperature, humidity, and usage time, also making it impossible to guarantee stable rear cavity ventilation, thus affecting the speaker's acoustic performance. Utility Model Content

[0004] The main purpose of this utility model is to propose a tuning structure, a sound-generating device, and an audio equipment, which aims to solve the problem of air permeability fluctuation caused by insufficient processing precision or material stability in the traditional loudspeaker rear cavity ventilation structure.

[0005] To achieve the above objectives, the present invention proposes a tuning structure for use in audio equipment, the tuning structure comprising:

[0006] The mounting bracket has a ring-shaped mounting ring plate portion, and an air vent is provided through the mounting ring plate portion; and...

[0007] The tuning section is made of metal and has multiple vent holes. The tuning section is located on the mounting ring plate and the multiple vent holes are arranged corresponding to the air vents.

[0008] This utility model also proposes a sound-generating device, which includes a tuning structure, the tuning structure comprising:

[0009] The mounting bracket has a ring-shaped mounting ring plate portion, and an air vent is provided through the mounting ring plate portion; and...

[0010] The tuning section is made of metal and has multiple vent holes. The tuning section is located on the mounting ring plate and the multiple vent holes are arranged corresponding to the air vents.

[0011] This utility model also proposes an audio device, the audio device including a sound-generating device, the sound-generating device including a tuning structure, the tuning structure including:

[0012] The mounting bracket has a ring-shaped mounting ring plate portion, and an air vent is provided through the mounting ring plate portion; and...

[0013] The tuning section is made of metal and has multiple vent holes. The tuning section is located on the mounting ring plate and the multiple vent holes are arranged corresponding to the air vents. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram of the first embodiment of the tuning structure provided by this utility model;

[0016] Figure 2 for Figure 1 A top-view diagram of the tuning structure in the image;

[0017] Figure 3 for Figure 1 A top view of the mounting bracket structure;

[0018] Figure 4 This is a top view of the second embodiment of the tuning structure provided by this utility model.

[0019] Explanation of icon numbers:

[0020] 100. Tuning structure; 1. Mounting bracket; 11. Mounting ring plate; 111. Vent; 12. Inner mounting sleeve; 13. Outer mounting sleeve; 2. Tuning section; 21. Vent hole.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] 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 scope of protection of the present utility model.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. "Multiple" refers to two or more. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] In existing technologies, the speaker structure of headphones typically achieves rear cavity ventilation using traditional methods. Specifically, this is often achieved by directly creating ventilation holes in the frame or by covering the ventilation channels with flexible materials such as fabric or sponge. However, directly creating holes in the frame is limited by manufacturing precision, making it difficult to precisely control the size and number of holes, which can easily lead to fluctuations in ventilation. Similarly, when using flexible materials such as fabric or sponge, the material's elasticity and breathability change with ambient temperature, humidity, and usage time, also making it impossible to guarantee stable rear cavity ventilation, thus affecting the speaker's acoustic performance.

[0026] In view of this, the present invention provides a tuning structure to solve the problem of air permeability fluctuation caused by insufficient processing precision or material stability in the ventilation structure of the speaker rear cavity.

[0027] Reference Figure 1-3 , Figure 1-3 This is a schematic diagram of the first embodiment of the tuning structure 100 of this utility model.

[0028] This utility model presents a first embodiment of a tuning structure 100.

[0029] Please see Figure 1-2 The tuning structure 100 is used in an audio device. The tuning structure 100 includes a mounting bracket 1 and a tuning section 2. The mounting bracket 1 has a ring-shaped mounting ring plate portion 11, and a vent 111 is provided through the mounting ring plate portion 11 (see details). Figure 3 (As shown). The tuning part 2 is made of metal, and a plurality of vent holes 21 are provided on the tuning part 2. The tuning part 2 is located on the mounting ring plate part 11, and the plurality of vent holes 21 are provided corresponding to the air outlet 111.

[0030] In practical implementation, the tuning structure 100 is used in audio devices such as speakers and headphones. Through structural design, it adjusts audio, particularly in terms of sound quality and effects. The mounting bracket 1 includes a ring-shaped mounting ring plate 11, which is the main body of the mounting bracket 1. It can be made of rigid plastic or metal, and its shape matches the installation position of the audio device. The mounting ring plate 11 supports the tuning section 2, forming a basic channel for audio flow through its ring structure. The mounting ring plate 11 has a vent 111, which is the main channel for sound waves and air flow. Its diameter and area directly affect the audio transmission efficiency. For example, a larger vent 111 results in less air resistance, potentially leading to a deeper bass response; conversely, a smaller vent 111 enhances the clarity of treble. The mounting ring plate 11 houses the tuning section 2, which, through material and structural design, filters, buffers, or enhances passing sound waves, thereby optimizing sound quality. Furthermore, the rigidity of the metal material ensures that the size of the vent holes remains stable, overcoming the problem of fluctuating air permeability caused by changes in environmental humidity in traditional fabric / sponge materials, thus maintaining a high degree of stability in the acoustic performance of the speaker's rear cavity. The tuning section 2 is provided with multiple vent holes 21, which correspond to the air vents 111. Sound waves first pass through the air vents 111 of the mounting ring plate 11, and then through the vent holes 21 of the tuning section 2 to reach the outside world or the inside of the device. This correspondence ensures that sound waves must be filtered by the tuning section 2 to achieve precise tuning.

[0031] It is understandable that the number, diameter, and distribution of the vents 21 in the tuning section 2 determine the tuning effect. More vents 21 result in a larger total ventilation area and better airflow, suitable for scenarios requiring enhanced bass performance. Conversely, fewer vents 21 increase air resistance, suppressing excessive low-frequency resonance and highlighting mid-to-high frequency sound quality. Smaller vents 21 have a more pronounced filtering effect on high-frequency sound waves, reducing high-frequency noise, while larger vents facilitate the passage of low-frequency sound waves. The use of a ring array distribution ensures uniform sound wave transmission in the circumferential direction, avoiding sound quality imbalance.

[0032] It is understandable that the working principle of the tuning structure 100 is as follows: the sound waves generated by the audio device first pass through the vent 111 of the mounting bracket 1, and then through the multiple vent holes 21 of the metal tuning section 2. Utilizing the rigidity of the metal material and the distribution / size design of the vent holes 21, the sound waves are specifically adjusted, such as enhancing low frequencies and filtering high-frequency noise, ultimately outputting optimized sound quality. The annular structure of the mounting bracket 1 and the vent 111 provide the basic flow channel, while the metal material of the tuning section 2 and the vent holes 21 are the core components for realizing the tuning function.

[0033] In this embodiment, the vent holes 21 are further optimized. Specifically, the multiple vent holes 21 are designed with gradually changing diameters, such as gradually increasing or decreasing in diameter from the center to the edge. This, combined with the concentric structure of the annular air vent 111, enables layered adjustment of sound waves at different frequencies. For example, the small central hole filters high-frequency noise, while the large edge hole enhances low-frequency transmission, thus achieving a balance between high, mid, and low frequencies.

[0034] In an optional embodiment, the vent holes 21 can also be arranged in a non-uniform distribution array. For example, the hole positions can be designed according to the characteristics of sound wave distribution in acoustic simulation. The density of the vent holes 21 can be increased in areas where sound wave energy is concentrated to reduce resistance, while the hole density can be reduced in areas where energy is weaker to enhance local reflection and improve the overall sound quality balance.

[0035] In this embodiment, the installation method of the tuning section 2 is also optimized. Specifically, the tuning section 2 and the mounting ring plate 11 are designed to be connected by a snap-fit ​​or magnetic connection, replacing the fixed connection method. Users can replace the tuning section 2 with different parameters of the vent 21 according to their needs, for example, a bass-enhanced version and a treble-normal version. This allows for flexible switching of sound quality.

[0036] In this embodiment, the mounting position of the mounting ring plate 11 is also optimized. Specifically, multiple mounting positions of the tuning section 2 are provided on the mounting ring plate 11, and the tuning sections 2 with different parameters are superimposed. For example, the first layer has large holes, the second layer has medium holes, and the third layer has small holes. More refined tuning is achieved through multi-layer filtering. This optimized design is suitable for professional audio equipment.

[0037] The technical solution of this utility model employs a tuning structure 100 for audio equipment. The tuning structure 100 includes a mounting bracket 1 and a tuning section 2. The mounting bracket 1 forms a ring-shaped mounting ring plate 11, on which an air vent 111 is provided. The ring-shaped design of the mounting ring plate 11 can evenly distribute the force on the sound waves, while providing circumferential installation space for the air vent 111 and the tuning section 2, ensuring the uniformity of audio transmission. The tuning section 2 is made of metal, and multiple air vents 21 are provided on the tuning section 2. The tuning section 2 is located on the mounting ring plate 11, and the multiple air vents 21 are corresponding to the air vents 111. By setting the metal tuning section 2 on the ring-shaped mounting bracket 1 and ensuring that its air vents 21 precisely correspond to the air vents 111 of the bracket, a stable airflow channel is formed. The rigidity and stability of the metal material ensure that the size of the vent 21 remains unchanged, overcoming the problem of air permeability fluctuation caused by changes in environmental humidity in traditional fabric / sponge materials, thereby achieving a high degree of stability in the acoustic performance of the speaker's rear cavity.

[0038] In the specific implementation process, the tuning unit 2 is embedded in the vent 111 of the mounting bracket 1. Embedding the tuning unit 2 within the vent 111 of the mounting bracket 1 minimizes the gap between the tuning unit 2 and the vent 111, reducing sound wave loss during transmission and ensuring more sound waves can pass through the vent 21 for adjustment, thus improving tuning efficiency. Secondly, the embedded design allows the tuning unit 2 and the mounting bracket 1 to form a stable integrated structure. When the audio equipment vibrates during operation, both can be subjected to force synchronously, reducing friction noise caused by relative displacement and ensuring sound quality stability.

[0039] Furthermore, (please refer again for details) Figure 2The tuning section 2 and the mounting bracket 1 are integrally molded using a plastic coating process. Specifically, a pre-processed metal tuning section 2 (with multiple vent holes 21) is first used as an insert, wherein the tuning section 2 is made of steel. This insert is precisely placed into a specific mold cavity whose shape matches the design shape of the mounting bracket 1. Then, molten plastic material is injected into the mold cavity under high pressure using an injection molding machine. The molten plastic tightly wraps around the edges and connecting parts of the tuning section 2, filling the entire cavity and forming the structure of the mounting bracket 1, including an annular mounting ring plate 11 and vent holes 111 thereon. After the plastic cools and solidifies, the mold is opened, and the tuning section 2 is securely encased inside the mounting bracket 1. There are no seams between the tuning section 2 and the mounting bracket 1, minimizing sound wave leakage and allowing sound waves to be more concentratedly adjusted through the vent holes 21 of the tuning section 2, thus improving the tuning effect. Steel has high strength and hardness, which can provide a stable structural support for the tuning section 2, enabling it to withstand greater external forces during equipment operation without easily deforming or being damaged, thus ensuring the structural stability of the tuning section 2 and ensuring the normal tuning function of the equipment.

[0040] It should be noted that, in this embodiment, the material of the tuning section 2 can be steel, but also aluminum, aluminum alloy, cast iron, alloy steel, copper, copper alloy, zinc, zinc alloy, magnesium, and magnesium alloy, etc. The above list is not exhaustive, and other suitable metal materials are also within the scope of protection of this application. Under different application environments and equipment requirements, the specific material selection of the tuning section 2 is optimized according to the actual working conditions. As mentioned above, in addition to steel, aluminum, due to its light weight, good electrical and thermal conductivity, can effectively reduce the overall weight of the equipment in scenarios with strict requirements on equipment weight and good heat dissipation performance, while ensuring that the heat of the equipment can be dissipated in time during operation, avoiding performance degradation due to overheating. Aluminum alloy, on the other hand, further optimizes the material performance by adding other alloying elements to aluminum, resulting in higher strength and better corrosion resistance, making it suitable for complex environments with high requirements for the structural strength and corrosion resistance of the tuning section 2.

[0041] In another embodiment, the tuning part 2 and the mounting bracket 1 can also be embedded in the vent 111 of the mounting bracket 1 via a snap-fit ​​connection. Specifically, an elastic buckle is provided on the inner wall of the vent 111 of the mounting ring plate portion 11 of the mounting bracket 1, and a corresponding slot is provided on the edge of the tuning part 2. During assembly, the tuning part 2 is aligned with the vent and pushed in, and the buckle automatically springs into the slot to complete the fixation. The tight engagement between the buckle and the slot can reduce the gap and reduce sound wave leakage.

[0042] In another embodiment, when the vent is circular, the tuning part 2 and the mounting bracket 1 can also be threadedly connected and embedded in the vent 111 of the mounting bracket 1. Specifically, an internal thread is provided on the inner wall of the vent 111 of the mounting ring plate portion 11 of the mounting bracket 1, and an external thread is provided on the outer edge of the tuning part 2. During assembly, the tuning part 2 is screwed into the vent 111, and fixed by the tight engagement of the threads. The threaded connection has good sealing performance and can effectively prevent sound waves from leaking out from the gaps.

[0043] In another embodiment, the tuning unit 2 and the mounting bracket 1 can also be embedded using a special adhesive. Specifically, high-strength acoustic adhesive is applied to the inner edge of the vent 111 of the mounting ring plate portion 11 of the mounting bracket 1. The tuning unit 2 is then aligned with the vent 111 and pressed against it. After the adhesive cures, the embedding is complete. This method achieves a seamless connection, minimizes sound wave leakage, and is simple and low-cost, making it suitable for audio equipment with strict weight and volume limitations.

[0044] Furthermore, the tuning section 2 includes multiple tuning sub-sections, which are spaced apart along the circumference of the mounting ring plate 11. It is understood that these tuning sub-sections are not tightly connected to form a single unit during installation, but rather arranged at intervals along the annular direction of the mounting ring plate 11. This circumferential spacing of the tuning sub-sections along the mounting ring plate 11 allows sound waves to be adjusted from multiple angles by the tuning sub-sections at different positions when passing through the air vent 111, resulting in more comprehensive tuning.

[0045] In another embodiment, the tuning section 2 is a single unit, rather than multiple tuning sub-sections. During installation, the tuning section 2 is fitted as a single unit along the annular direction of the mounting ring plate 11. This tuning section, due to its structural integrity, can be fitted and connected to the vent 111 of the mounting ring plate 11, reducing assembly gap problems that may arise from assembling multiple components.

[0046] In specific implementation, the mounting bracket 1 includes an inner mounting sleeve 12 located inside the mounting ring plate portion 11 and an outer mounting sleeve 13 located outside the mounting ring plate portion 11. The inner mounting sleeve 12 protrudes from the first mounting side end, and the outer mounting sleeve 13 protrudes from the second mounting side end. The mounting ring plate portion 11, as an annular plate structure, has a certain thickness. Along this thickness direction, its two end faces can be defined as the first mounting side end and the second mounting side end, respectively. These two side ends are key reference surfaces for mounting other components. The inner mounting sleeve 12 is located inside the mounting ring plate, i.e., on the side of the annular structure's center direction. Its mounting position protrudes from the first mounting side end, meaning the inner mounting sleeve 12 extends in the direction of the first mounting side end, exceeding the plane of the first mounting side end. The inner mounting sleeve 12 is mainly used to connect with related structures inside the audio equipment, such as the magnet of the sound unit and / or the fixing frame. The protruding design increases the connection contact area and depth, improving the stability of the installation.

[0047] Reference Figure 4 , Figure 4 This is a schematic diagram of the second embodiment of the tuning structure 100 of this utility model. This utility model proposes a second embodiment of the tuning structure 100.

[0048] In specific implementation, the tuning structure 100 includes the mounting bracket 1 and the tuning part 2. The mounting bracket 1 forms a ring-shaped mounting ring plate 11, and the vent 111 is provided through the mounting ring plate 11. The tuning part 2 is made of metal and has multiple vent holes 21. The tuning part 2 is located on the mounting ring plate 11, and the multiple vent holes 21 are arranged corresponding to the vent 111. The tuning part 2 is attached to the mounting ring plate 11. It can be understood that the tuning part 2 is not embedded inside the vent 111, but rather covers the surface of the mounting ring plate 11, and its position corresponds to the vent 111.

[0049] Furthermore, the mounting ring plate 11, being an annular plate structure, has a certain thickness. Along the thickness direction, its two end faces can be defined as the first mounting side end and the second mounting side end, respectively. The inner mounting sleeve 12 is disposed inside the mounting ring plate, and its mounting position protrudes beyond the first mounting side end; that is, the inner mounting sleeve 12 extends in the direction of the first mounting side end, exceeding the plane of the first mounting side end. The inner mounting sleeve 12 is mainly used for connection with related structures inside the audio equipment, such as the sound unit and the fixing frame. The protruding design increases the connection contact area and depth, improving the stability of the installation.

[0050] The outer mounting sleeve 13 is located on the outer side of the mounting ring plate 11, that is, on the side away from the center of the annular structure, and protrudes from the second mounting side end, that is, it extends in the direction of the second mounting side end and beyond the plane. The outer mounting sleeve 13 is mainly used to connect with the housing or external fixing structure of the audio device. The protruding design also enhances the connection strength with the external structure, ensuring that the entire tuning structure 100 is stably installed in the device.

[0051] The tuning part 2 is attached to the first mounting side end, that is, the tuning part 2 is closely attached to the surface of the first mounting side end of the mounting ring plate 11. Combined with the inner mounting sleeve 12 protruding from the first mounting side end, the tuning part 2 can be located in the relative space between the inner mounting sleeve 12 and the mounting ring plate 11. This ensures that the tuning part 2 effectively covers the air vent 111 to realize the tuning function, and the structure of the inner mounting sleeve 12 can also provide a certain degree of limiting protection for the tuning part 2, reducing the interference of external factors on the tuning part 2.

[0052] In one embodiment, the tuning section 2 is adhesively attached to the first mounting side. Specifically, double-sided adhesive, such as acrylic foam adhesive, is applied to the mating surfaces of the tuning section 2 and the mounting ring plate 11 to enhance adhesion. The tuning section 2 is then pressed flat onto the adhesive surface of the first mounting side of the mounting ring plate. This method is suitable for lightweight tuning sections, such as thin-film tuning discs, which allow for quick installation without mechanical damage, and the adhesive layer can fill tiny gaps.

[0053] In another embodiment, the tuning part 2 is bonded to the first mounting side by welding. Specifically, this bonding can be achieved using an ultrasonic welding process. An annular welding rib is designed on the mating surface of the tuning part 2 and the mounting ring plate 11. After aligning the tuning part 2 with the mounting position, the ultrasonic welding head applies pressure and releases high-frequency vibrations, causing the welding rib to melt instantly. After cooling, a tight weld layer is formed, achieving molecular-level bonding and fixation. This method provides high connection strength and excellent sealing, making it suitable for high-precision acoustic equipment, such as tuning components for microphones and speakers.

[0054] Furthermore, the tuning section 2 is a tuning disc arranged in a ring shape. It can be understood that the tuning disc indicates that the tuning section 2 has a thin plate-like structure. This shape is conducive to a close fit with the surface of the mounting ring plate 11 to meet the mounting requirements, reduce the gap between the two, thereby reducing the possibility of sound waves leaking from the gap and ensuring the focus of the tuning effect.

[0055] In specific implementation, the material of the tuning section 2 includes steel. It is understood that the thin-plate tuning disc is lighter in weight, which can reduce the load pressure on the mounting ring plate 11, and its own inertia is smaller when the sound wave vibrates, making it less likely to generate additional noise due to vibration. Combined with the characteristics of the metal material, it can further improve the stability of the tuning and the purity of the sound quality.

[0056] It should be noted that the structure and connection relationship of the remaining components in the second embodiment are consistent with those in the first embodiment, and the relevant content will not be repeated here.

[0057] Furthermore, this embodiment of the invention also proposes a sound-generating device. The sound-generating device includes the tuning structure 100 as described above.

[0058] Furthermore, this embodiment of the invention also proposes an audio device. The audio device includes either the sound-generating device described above or the tuning structure 100 described above.

[0059] Since the audio device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tuning structure, characterized in that, include: The mounting bracket has a ring-shaped mounting ring plate portion, and an air vent is provided through the mounting ring plate portion; and... The tuning section is made of metal and has multiple vent holes. The tuning section is located on the mounting ring plate and the multiple vent holes are arranged corresponding to the air vents.

2. The tuning structure as described in claim 1, characterized in that, The tuning section is embedded in the air vent of the mounting bracket.

3. The tuning structure as described in claim 2, characterized in that, The tuning section and the mounting bracket are integrally formed using a plastic coating process.

4. The tuning structure as described in claim 2 or 3, characterized in that, The tuning section includes multiple tuning subsections, which are spaced apart along the circumference of the mounting ring plate.

5. The tuning structure as described in claim 1, characterized in that, The tuning section is attached to the mounting ring plate.

6. The tuning structure as described in claim 5, characterized in that, The mounting ring plate portion has a first mounting side end and a second mounting side end in its thickness direction; The mounting bracket includes an inner mounting sleeve disposed on the inner side of the mounting ring plate portion and an outer mounting sleeve disposed on the outer side of the mounting ring plate portion. The inner mounting sleeve portion protrudes from the first mounting side end, and the outer mounting sleeve portion protrudes from the second mounting side end. The tuning section is attached to the first mounting side.

7. The tuning structure as described in claim 5 or 6, characterized in that, The tuning section is a tuning disc arranged in a ring.

8. The tuning structure as described in claim 1, characterized in that, The tuning section is made of steel.

9. A sound-generating device, characterized in that, Includes the tuning structure as described in any one of claims 1 to 8.

10. An audio device, characterized in that, Includes the sound-generating device as described in claim 9.

Images