Centering vane and sound production device

Abstract

The utility model belongs to sound production device technical field discloses a kind of centering supporting sheet and sound production device, centering supporting sheet includes supporting sheet main body part, first connecting part, transition part and second connecting part.Surport of supporting sheet main body part is configured to connect sound production device;Two first connecting parts are oppositely arranged, two first connecting parts are connected on the same side of supporting sheet main body part, and first connecting part is configured to connect surport;Transition part is located between two first connecting parts, and transition part is connected to supporting sheet main body part, at least part of transition part forms curved section, and curved section is spaced apart from supporting sheet main body part;Second connecting part is connected to transition part, and second connecting part is spaced apart from curved section, and second connecting part is configured to connect voice coil of sound production device.The centering supporting sheet and sound production device provided by the utility model have high connection strength, and further have high acoustic performance.

Description

Technical Field

[0001] This utility model relates to the field of sound-generating device technology, and in particular to a centering support and a sound-generating device. Background Technology

[0002] Electronic devices such as mobile phones, computers, and smart wearable devices are all equipped with sound-emitting devices to provide a better user experience.

[0003] In related technologies, the sound-generating device includes a support, a diaphragm, a voice coil, a magnetic yoke, and a main magnet. The four edges of the magnetic yoke are bent towards the diaphragm to form a bent portion, which is spaced apart from the main magnet to form a magnetic gap. One end of the voice coil is connected to the diaphragm, and the other end is located in the magnetic gap. The top surface of the bent portion is bonded to the support by a sealant to form a relatively sealed space. When the voice coil is energized, it drives the diaphragm to vibrate under the action of the magnetic field, thereby producing sound. The voice coil is connected to the support through a centering support. In related technologies, one end of the centering support is sheet-like and bonded to the voice coil, and the other end is sheet-like and bonded to the support. The middle part of the centering support is "S"-shaped. When the voice coil moves, it causes the centering support to undergo elastic deformation.

[0004] However, since the centering support is usually bonded to the end face of the support, and the wall thickness of the annular support is usually small, the connection strength between the centering support and the support is insufficient, and separation is likely to occur. Utility Model Content

[0005] The first objective of this application is to provide a centering support to solve the technical problem of insufficient connection strength between the centering support and the support member in the prior art.

[0006] The second objective of this application is to provide a sound-generating device with high connection strength and good acoustic performance.

[0007] The third objective of this application is to provide an electronic device with high reliability.

[0008] Based on the above concept, the technical solution adopted in this application is:

[0009] Mind-stabilizing support tablets, including:

[0010] The main body of the support plate is configured as a support member for connecting the sound-generating device;

[0011] There are two first connecting parts, which are connected to the same side of the main body of the support piece. The first connecting parts are configured as connecting support members.

[0012] A transition section is located between two first connecting sections and is connected to the main body of the support piece. At least a portion of the transition section forms a curved section, which is spaced apart from the main body of the support piece.

[0013] The second connecting part is connected to the transition part. The second connecting part is spaced apart from the curved section. The second connecting part is configured to connect the voice coil of the sound-generating device.

[0014] In one embodiment, a positioning notch is formed between the first connecting portion and the transition portion.

[0015] In one embodiment, a limiting groove is provided on the side of the main body of the support piece away from the first connecting part.

[0016] In one embodiment, the transition section includes two symmetrically arranged curved sections, which are U-shaped.

[0017] In one embodiment, the centering support is an axisymmetric structure, and the axis of symmetry of the centering support extends along the width direction of the centering support.

[0018] In one embodiment, the second connecting portion is provided with a clearance groove on the side opposite to the transition portion.

[0019] The sound-generating device includes:

[0020] Support components;

[0021] The sound-generating module has multiple sets arranged along a first direction; the sound-generating module includes a vibration system and a magnetic circuit system. The vibration system includes a diaphragm assembly and a voice coil connected to the diaphragm assembly at one end; the magnetic circuit system includes a magnetic structure and a main magnet disposed on the magnetic structure, and the magnetic structure is connected to a support member; the magnetic structure and the main magnet are spaced apart to form a magnetic gap, and the end of the voice coil facing away from the diaphragm assembly is located in the magnetic gap. The voice coil and the magnetic circuit system cooperate to drive the diaphragm assembly to vibrate; the first direction is the length direction of the support member;

[0022] The sound-generating module also includes multiple centering supports, which are the centering supports mentioned above. Both ends of the voice coil in the first direction are connected to centering supports. The first connecting part and the main body of the centering support are both connected to the support member, and the second connecting part of the centering support is connected to the voice coil.

[0023] In one embodiment, a positioning notch is formed between the first connecting portion and the transition portion, and the support member is provided with a second limiting portion that cooperates with the positioning notch, the second limiting portion passing through the positioning notch.

[0024] In one embodiment, the main body of the support piece is provided with a limiting groove on the side opposite to the first connecting part, and the support member is provided with a first limiting part that cooperates with the limiting groove, and at least part of the first limiting part is provided in the limiting groove.

[0025] In one embodiment, the support member is provided with a support slot, and a centering support is disposed in the support slot.

[0026] In one embodiment, a crossbeam is provided between the two walls in the width direction of the support member, and the main body of the two centering supports located on opposite sides of the two voice coils is connected to the crossbeam.

[0027] In one embodiment, the two centering supports located on opposite sides of the two voice coils are an integral structure.

[0028] The beneficial effects of this application are:

[0029] The main body and the first connecting part of the centering support are both used for fixed connection with the support member. There are two second connecting parts, which are located on the same side of the main body of the support member. This allows the centering support and the support member to have a larger connection area, which increases the connection strength and reliability between the centering support and the support member and reduces the risk of separation between the centering support and the support member.

[0030] The provided sound-generating device has a strong connection between the centering paper and the support, which improves the acoustic performance.

[0031] The provided electronic equipment has good acoustic performance. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the first structure of the centering support provided in the embodiments of this application;

[0034] Figure 2 This is a schematic diagram of the second structure of the centering support provided in the embodiments of this application;

[0035] Figure 3 This is a first structural schematic diagram of the first type of sound-generating device provided in the embodiments of this application;

[0036] Figure 4 This is a second structural schematic diagram of the first sound-generating device provided in the embodiments of this application;

[0037] Figure 5 This is an exploded view of the first sound-generating device provided in the embodiments of this application;

[0038] Figure 6 This is a top view of the first sound-generating device provided in the embodiments of this application;

[0039] Figure 7 yes Figure 6 The AA section view shown;

[0040] Figure 8 yes Figure 6 The BB section view shown;

[0041] Figure 9 This is a schematic diagram of the sound-generating device provided in the embodiments of this application, without showing the magnetic structure;

[0042] Figure 10 This is a schematic diagram of the structure of the support member provided in the embodiment of this application;

[0043] Figure 11 yes Figure 6 The shown is a CC section view;

[0044] Figure 12 This is a schematic diagram of the structure of the second sound-generating device provided in the embodiments of this application;

[0045] Figure 13 This is a partial structural schematic diagram of the second type of sound-generating device provided in the embodiments of this application;

[0046] Figure 14 This is a schematic diagram of the structure of the third sound-generating device provided in the embodiments of this application;

[0047] Figure 15 This is an exploded view of the third sound-generating device provided in the embodiments of this application;

[0048] Figure 16 This is a schematic diagram of the centering support plate of the third sound-generating device provided in the embodiments of this application.

[0049] In the picture:

[0050] 10. Support component; 101. Receiving groove; 102. First limiting part; 103. Half groove; 104. Second limiting part; 105. Support boss; 106. Support plate groove; 107. Crossbeam; 100. Sealing cavity;

[0051] 20. Sound-generating module; 1. Vibration system; 11. Diaphragm assembly; 111. Dome; 112. Diaphragm structure; 12. Voice coil; 2. Magnetic circuit system; 2a. Magnetic structure; 21. First yoke; 211. Perforation; 2111. Large hole section; 2112. Small hole section; 212. Through hole; 213. Main body of yoke; 214. First yoke part; 215. Second yoke part; 2151. Clearance notch; 22. Main magnet; 23. Magnetic gap; 24. Secondary magnet; 25. First magnetic conductive sheet; 26. Second yoke; 261. Extension part; 262. Folded edge; 3. Centering support piece; 31. Support piece main body; 32. First connecting part; 33. Transition part; 331. Bending section; 34. Second connecting part; 35. Positioning notch; 36. Limiting groove; 37. Clearance groove; 38. Through hole;

[0052] 30. Damping mesh; 40. Glue reservoir; 50. Connecting colloid; 60. Conductive part;

[0053] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0054] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all of them.

[0055] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0056] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0057] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0059] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0060] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0061] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0062] This embodiment provides a centering support plate with a large connection area with the support member, which improves the strength and reliability of the connection with the support member.

[0063] For example, such as Figure 1 and Figure 2As shown, the centering support 3 includes a support body 31, a first connecting portion 32, a transition portion 33, and a second connecting portion 34. The support body 31 is used to connect to the support member 10; that is, the support body 31 is connected to the end face of the support member 10 facing away from the diaphragm assembly 11. In this embodiment, two first connecting portions 32 are arranged opposite each other. The two first connecting portions 32 are connected to the same side of the support body 31, and the first connecting portions 32 are also used to connect to the support member 10; that is, the first connecting portions 32 are used for fixed connection to the end face of the support member 10 facing away from the diaphragm assembly 11.

[0064] By providing two first connecting parts 32, the connection area between the centering support 3 and the support member 10 can be increased to ensure the connection strength; furthermore, both the first connecting part 32 and the support body part 31 are connected to the support member 10, which can further reduce the connection strength and connection reliability between the centering support 3 and the support member 10.

[0065] In this embodiment, the shape of the first connecting portion 32 matches the shape of the support member 10 for connecting to the centering support piece 3, so as to ensure that the first connecting portion 32 and the centering support piece 3 have a large contact area. For example, when the area of ​​the support member 10 for connecting the centering support piece 3 is arc-shaped, the first connecting portion 32 is set to be arc-shaped. When the area of ​​the support member 10 for connecting the centering support piece 3 is straight, the first connecting portion 32 is set to be straight.

[0066] like Figure 1 and Figure 2 As shown, the transition portion 33 is located between the two first connecting portions 32, that is, the transition portion 33 and the first connecting portions 32 are located on the same side of the support body portion 31. The transition portion 33 is connected to the support body portion 31, and at least a portion of the transition portion 33 forms a curved section 331, which is spaced apart from the support body portion 31. In this embodiment, the second connecting portion 34 is connected to the transition portion 33, and the second connecting portion 34 is spaced apart from the curved section 331. The second connecting portion 34 is connected to the voice coil 12. In this embodiment, the movement direction of the voice coil 12 is the third direction Z (i.e., the height direction of the support member 10), and the thickness direction of the centering support 3 is the third direction Z. The direction in which the centering support 3 undergoes elastic deformation is also the third direction Z.

[0067] By incorporating the bending segment 331, the centering support 3 is able to undergo elastic deformation, thereby enabling the voice coil 12 to reset. The bending segment 331 is spaced apart from the support body 31 and the second connecting portion 34, allowing the second connecting portion 34 to move relative to the bending segment 331, and the bending segment 331 to move relative to the support body 31. This allows for a larger elastic deformation amplitude of the centering support 3 in the third direction Z, making it suitable for various application scenarios.

[0068] It is understandable that the bending segment 331 can also be spaced apart from the first connecting portion 32 so that the first connecting portion 32 will not affect the elastic deformation of the bending segment 331.

[0069] The centering support 3 provided in this embodiment has a main body 31 and a first connecting part 32, both of which are used to be fixedly connected to the support member 10. There are two first connecting parts 32, which are located on the same side of the main body 31. This allows the centering support 3 and the support member 10 to have a larger connection area, which increases the connection strength and reliability between the centering support 3 and the support member 10 and reduces the risk of separation between the centering support 3 and the support member 10.

[0070] In one embodiment, a positioning notch 35 is formed between the first connecting portion 32 and the transition portion 33. The positioning notch 35 is used to cooperate with the second limiting portion 104 on the support member to limit the centering support piece 3.

[0071] In one embodiment, a limiting groove 36 is provided on the side of the support body 31 opposite to the first connecting part 32. The limiting groove 36 is used to abut against the first limiting part 102 on the support member 10 to limit the centering support 3.

[0072] Optionally, the transition section 33 includes two symmetrically arranged curved sections 331, which are U-shaped.

[0073] In one possible implementation, the centering support 3 has an axisymmetric structure, and the axis of symmetry of the centering support 3 extends along the width direction of the centering support 3.

[0074] In some alternative embodiments, the second connecting portion 34 is provided with a relief groove 37 on the side opposite to the transition portion 33.

[0075] This embodiment also provides a sound-generating device, in which the centering support plate and the support member have high connection strength and good acoustic performance.

[0076] For example, such as Figures 1 to 16 As shown, the sound-generating device includes a support member 10, a sound-generating module 20, and a damping mesh 30. The support member 10 serves as the support structure for the entire sound-generating device, and the sound-generating module 20 is disposed on the support structure.

[0077] For ease of description, in this embodiment, the length direction of the support member 10 is referred to as the first direction X, the width direction of the support member 10 is referred to as the second direction Y, and the height direction of the support member 10 is referred to as the third direction Z. The length of the support member 10 is greater than both its width and height. For example, the sound-generating device can be rectangular to facilitate its application in electronic devices that have a large installation space in the length direction but a small installation space in the width and thickness directions.

[0078] In some alternative embodiments, the support member 10 is annular, which can also be understood as the support member 10 having mounting holes extending through the upper and lower surfaces along the height direction. Thus, the annular support member 10 can be used to accommodate part of the structure of the sound-generating module 20.

[0079] For example, multiple sets of sound-generating modules 20 can be provided, and each set of sound-generating modules 20 can emit sound independently. Multiple sets of sound-generating modules 20 can be arranged along the first direction X. In this way, multiple sound-generating modules 20 of the sound-generating device can be arranged along the first direction X, and based on having multiple sound sources, the space required in the second direction Y and the third direction Z is small.

[0080] In one embodiment, the multiple sound-generating modules 20 can be independent of each other, that is, each sound-generating module 20 is individually fixed to the support member 10.

[0081] In other embodiments, the multiple sound-generating modules 20 may not be relatively independent, but may have a connection relationship or a shared relationship. For example, the components of the sound-generating module 20 may be connected to or integrally formed with the corresponding components of the adjacent sound-generating module 20. The specifics can be adjusted according to actual needs, and this embodiment does not limit this.

[0082] For example, such as Figure 4 and Figure 5 As shown, this embodiment provides a sound-generating module 20, which includes a vibration system 1 and a magnetic circuit system 2. The vibration system 1 and the magnetic circuit system 2 can cooperate with each other to vibrate and generate sound.

[0083] In one embodiment, such as Figure 5 As shown, the vibration system 1 includes a diaphragm assembly 11 and a voice coil 12 connected to the diaphragm assembly 11 at one end. The circumferential edge of the diaphragm assembly 11 is connected to the support member 10, and the voice coil 12 can be electrically connected to an external circuit. The diaphragm assembly 11 can vibrate and produce sound under the drive of the voice coil 12.

[0084] In some optional embodiments, the diaphragm assembly 11 may include a dome 111 and a diaphragm structure 112. The diaphragm structure 112 is connected to the circumferential edge of the dome 111, and a voice coil 12 is connected to the dome 111. The voice coil 12 drives the dome 111 to vibrate, thereby driving the diaphragm structure 112 to vibrate through the dome 111. The circumferential edge of the diaphragm structure 112 is connected to the support member 10. For example, the circumferential edge of the diaphragm structure 112 is connected to the end face of one end of the support member 10 in the height direction.

[0085] In some alternative embodiments, such as Figure 5 As shown, the diaphragm assemblies 11 of multiple sound-generating modules 20 can be connected into one unit.

[0086] Please continue reading Figure 5The magnetic circuit system 2 includes a magnetic structure 2a and a main magnet 22 disposed on the magnetic structure 2a. Both the magnetic structure 2a and the main magnet 22 are made of magnetic materials. The magnetic structure 2a is connected to the support member 10, and, as... Figure 7 As shown, the magnetic structure 2a, the diaphragm assembly 11, and the support member 10 are interconnected and cooperate to form a sealed cavity 100. The main magnet 22 and the voice coil 12 are both located in the sealed cavity 100. The sealed cavity 100 contains air, which causes the diaphragm assembly 11 to vibrate and drive the air to produce sound.

[0087] It should be noted that the sealing cavity 100 in this embodiment is a relatively sealed cavity. The diaphragm assembly 11 and the support member 10 are connected by adhesive bonding, and there is no gap between the diaphragm assembly 11 and the support member 10. The magnetic structure 2a and the support member 10 can be staggered, so that there can be a very small gap or even no gap between the magnetic structure 2a and the support member 10.

[0088] like Figure 7 As shown, the magnetic circuit system 2 has a magnetic gap 23. One end of the voice coil 12, facing away from the diaphragm assembly 11, is located in the magnetic gap 23. The voice coil 12 cooperates with the magnetic circuit system 2 to drive the diaphragm assembly 11 to vibrate, thereby causing the sound-generating module 20 to produce sound. Exemplarily, the magnetic circuit system 2 and the main magnet 22 are spaced apart to form the magnetic gap 23.

[0089] Please see Figure 5 The magnetic structure 2a is provided with a through hole 211 that connects to the sealed cavity 100, and a damping mesh 30 is installed in the through hole 211. By providing the through hole 211 and installing the damping mesh 30 in the through hole 211, the gas inside the sealed cavity 100 can be discharged through the damping mesh 30, and the air outside the sealed cavity 100 can also enter the sealed cavity 100 through the damping mesh 30.

[0090] It should be noted that the damping mesh 30 refers to a fabric with mesh openings. Different mesh density and size will result in different acoustic impedances in the damping mesh 30. These different acoustic impedances will manifest as different damping coefficients in the sound-generating device. Thus, by locally suppressing the amplitude near the resonant frequency point, the frequency response curve can be made flatter, thereby reducing the corresponding total harmonic distortion (THD). Total harmonic distortion is an important parameter for measuring the sound quality and other performance characteristics of a sound-generating device, representing the degree of distortion generated during the transmission or playback of the sound signal. Reduced total harmonic distortion can significantly improve sound quality, making the sound purer and more natural. In the design of a sound-generating device, the use of damping mesh 30 can suppress amplitude fluctuations near the resonant frequency point, thereby effectively reducing harmonic distortion, lowering total harmonic distortion, and improving the overall sound quality performance of the sound-generating device.

[0091] The sound-generating device provided in this embodiment includes a diaphragm assembly 11, a support member 10, and a magnetic structure 2a that can cooperate to form a sealed cavity 100. The magnetic structure 2a is provided with a perforation 211, and a damping mesh 30 is installed in the perforation 211. The damping mesh 30 has a certain damping, so that the gas in the sealed cavity 100 will be subject to a certain resistance when it is discharged. On the one hand, it can control the leakage of the sound-generating device; on the other hand, it will not cause the gas volume in the sealed cavity 100 to increase or decrease sharply, thereby improving the stability of the gas pressure in the sealed cavity 100. This achieves the purpose of suppressing amplitude fluctuations near the resonance frequency point, effectively reducing harmonic distortion, and thus effectively improving the acoustic performance of the sound-generating device.

[0092] In some optional embodiments, one or more perforations 211 may be provided on the magnetic structure 2a, which can be adjusted according to requirements, and this embodiment does not limit this.

[0093] When the magnetic structure 2a is provided with multiple perforations 211, the multiple perforations 211 are spaced apart along the first direction X. With this arrangement, damping mesh fabrics 30 with different mesh densities can be provided in the perforations 211 according to the relative position relationship between the perforations 211 and the sealing cavity 100, thereby adjusting the acoustic resistance of the perforations 211, pre-forming an airflow difference, suppressing the swaying of the sound-generating module 20 caused by the asymmetry of airflow in the sealing cavity 100 of the sound-generating device along the first direction X, reducing the generation of noise in the sound-generating device, and making the acoustic performance of the sound-generating device better.

[0094] In some optional embodiments, when the magnetic structure 2a is provided with a plurality of perforations 211, the plurality of perforations 211 are symmetrically arranged on the magnetic structure 2a along a symmetry axis perpendicular to the first direction X. This arrangement can further reduce the risk of the sound-generating module 20 swaying due to airflow asymmetry, further reduce the generation of noise, and further improve acoustic performance.

[0095] In at least one implementation, such as Figure 4 As shown, the magnetic structure 2a is provided with a through hole 212. The through hole 212 can make the magnetic structure 2a lighter, thereby making the overall weight of the sound-generating device lighter, which can be used in electronic devices with high weight requirements.

[0096] It should be noted that when the magnetic structure 2a has a through hole 212, the main magnet 22 is connected to the magnetic structure 2a and seals the through hole 212 to prevent gas in the sealed cavity 100 from leaking through the through hole 212 and affecting the sound quality. Specifically, the main magnet 22 sealing the through hole 212 means that the orthographic projection of the main magnet 22 on the magnetic structure 2a completely covers the through hole 212, or it can be understood as the main magnet 22 covering the through hole 212, so that the gas in the sealed cavity 100 will not be discharged through the through hole 212.

[0097] In one embodiment, when the magnetic structure 2a is provided with a through hole 212, a through hole 211 is provided on at least one side of the through hole 212 in the first direction X. The through hole 212 and the through hole 211 are spaced apart along the first direction X, so that the arrangement of the through hole 212 does not affect the position and size of the through hole 211, thereby making the structure of the through hole 211 more flexible.

[0098] In an optional embodiment, such as Figure 8 As shown, the perforation 211 is a stepped hole, and it includes a large hole section 2111 and a small hole section 2112. The diameter of the large hole section 2111 is larger than that of the small hole section 2112, and the large hole section 2111 and the small hole section 2112 are coaxially arranged. The damping mesh 30 is disposed in the large hole section 2111. This arrangement facilitates the installation of the damping mesh 30 in the perforation 211. For example, the damping mesh 30 can be glued to the stepped surface of the stepped hole, resulting in a larger connection area between the damping mesh 30 and the magnetic structure 2a, thus improving the reliability of the connection between the damping mesh 30 and the magnetic structure 2a.

[0099] In one embodiment, the thickness of the damping mesh 30 is less than or equal to the length of the large-aperture section 2111. This arrangement ensures that the damping mesh 30 does not additionally increase the height of the magnetic structure 2a, and consequently, does not increase the overall height of the sound-generating device. This allows the sound-generating device to be used in narrower spaces. Furthermore, by protecting the damping mesh 30 with the large-aperture section 2111, the risk of other structures scraping the damping mesh 30 off the magnetic structure 2a is reduced, resulting in higher reliability.

[0100] In order to improve the connection strength between the support member 10 and the magnetic circuit structure, in this embodiment, the support member 10 may be provided with a limiting structure for limiting the magnetic circuit structure.

[0101] In at least one implementation, such as Figure 9 and Figure 10As shown, the support member 10 is provided with a first limiting part 102. The diaphragm assembly 11 is connected to the end face of one end of the support member 10, and the first limiting part 102 is provided on the end face of the other end of the support member 10. That is, the first limiting part 102 is provided at the end of the support member 10 away from the diaphragm assembly 11. The magnetic structure 2a abuts against the first limiting part 102, so that the first limiting part 102 restricts the movement of the magnetic structure 2a relative to the support member 10, thereby ensuring the reliability and stability of the connection between the support member 10 and the magnetic structure 2a. On the one hand, it reduces the risk of connection failure between the support member 10 and the magnetic structure 2a, and on the other hand, it avoids the generation of a large gap between the magnetic structure 2a and the support member 10 due to relative movement.

[0102] Optionally, the first limiting part 102 may contact the outer wall surface of the magnetic structure 2a to restrict the movement of the magnetic structure 2a.

[0103] In one implementation, such as Figure 10 As shown, multiple first limiting portions 102 can be provided. First limiting portions 102 can be provided on both sides of the magnetic structure 2a in the first direction X to restrict the movement of the magnetic structure 2a relative to the support member 10 in the first direction X. First limiting portions 102 can also be provided on both sides of the magnetic structure 2a in the second direction Y to restrict the movement of the magnetic structure 2a relative to the support member 10 in the second direction Y. The cooperation of multiple first limiting portions 102 can further reduce the risk of movement of the magnetic structure 2a relative to the support member 10, improve the strength of fixing the magnetic structure 2a, and also make the sealing cavity 100 more sealed, ensuring the acoustic performance of the sound-generating device.

[0104] It is understandable that the shape of the first limiting part 102 can match the shape of the magnetic structure 2a so that the contact area between the first limiting part 102 and the magnetic structure 2a can be larger, thereby improving the effect of limiting the magnetic structure 2a.

[0105] In at least one embodiment, such as Figure 9 or Figure 10 As shown, the support member 10 may also be provided with a second limiting part 104. For example, the second limiting part 104 is provided at the end of the support member 10 away from the diaphragm assembly 11. The second limiting part 104 can abut against the magnetic structure 2a to limit the position of the magnetic structure 2a. It can be seen that the second limiting part 104 can cooperate with the first limiting part 102 to limit the position of the magnetic structure 2a relative to the support member 10, so as to further reduce the risk of the magnetic structure 2a moving relative to the support member 10.

[0106] In some optional embodiments, the second limiting portion 104 and the first limiting portion 102 are spaced apart in the circumferential direction of the support member 10. The number of second limiting portions 104 can be one or more, and this embodiment does not limit this. The shape of the second limiting portion 104 can match the shape of the magnetic structure 2a to better abut against the magnetic structure 2a.

[0107] In at least one possible implementation, the second limiting portion 104 can be used not only to limit the magnetic structure 2a, but also to cover the notch on the magnetic structure 2a. For example, as... Figure 5 As shown, the magnetic structure 2a has a clearance notch 2151, which communicates with the sealed cavity 100. In this case, gas inside the sealed cavity 100 will be discharged through the clearance notch 2151, affecting sound quality. In this embodiment, the support member 10 is provided with a second limiting part 104 that cooperates with the clearance notch 2151. The second limiting part 104 covers the clearance notch 2151 from the outer surface of the magnetic structure 2a, allowing the magnetic structure 2a, the diaphragm assembly 11, and the support member 10 to cooperate and form the sealed cavity 100. By providing the second limiting part 104, the clearance notch 2151 of the magnetic structure 2a can be filled by the second limiting part 104, thereby minimizing the gap between the magnetic structure 2a and the support member 10, and thus improving the sound quality of the sound-generating device.

[0108] In some optional embodiments, when the second limiting part 104 seals the clearance notch 2151, a sealing element (such as silicone, rubber or other materials) may be provided between the second limiting part 104 and the magnetic structure 2a to form a seal between the magnetic structure 2a and the support member 10.

[0109] It is understandable that when there are multiple second limiting parts 104, not every second limiting part 104 is covered at the clearance notch 2151. That is, among the multiple second limiting parts 104, some second limiting parts 104 may be covered at the clearance notch 2151, while other second limiting parts 104 are not covered at the clearance notch 2151. This embodiment does not limit this.

[0110] In at least one possible implementation, in order to further improve the connection strength between the magnetic structure 2a and the support member 10, such as... Figure 7As shown, a glue reservoir 40 is formed between the support member 10 and the magnetic structure 2a. The sound-generating device also includes a connecting adhesive 50 disposed in the glue reservoir 40, which connects the support member 10 and the magnetic structure 2a. By providing the glue reservoir 40, the amount of connecting adhesive 50 bonding the support member 10 and the magnetic structure 2a can be increased, thereby improving the bonding strength between the support member 10 and the magnetic structure 2a. Furthermore, the glue reservoir 40 facilitates the containment of the adhesive 50 in a gel-like state, eliminating the need for solid adhesive and making the connection between the support member 10 and the magnetic structure 2a more flexible.

[0111] In at least one possible embodiment, the inner side of the support member 10 is provided with a semi-groove 103, which cooperates with the side of the first magnetic yoke 214 to form a glue storage groove 40. That is, in this embodiment, the glue storage groove 40 is a V-shaped groove or a wedge-shaped groove. By providing a semi-groove 103 on the support member 10, the glue storage groove 40 does not occupy the volume of the magnetic circuit structure, allowing the volume of the magnetic circuit structure to be larger. This, in turn, allows the magnetic field strength formed by the interaction between the magnetic circuit structure and the main magnet 22 to be stronger, thereby improving the acoustic performance of the sound-generating device.

[0112] In some alternative embodiments, the half-groove 103 extends to the end face of the support 10 away from the diaphragm assembly 11. This arrangement allows the opening of the glue reservoir 40 to be located on the end face of the support 10, thereby facilitating operations such as glue injection.

[0113] In at least one implementation, such as Figure 10 As shown, a support boss 105 is provided on the inner side of the support member 10. At least a portion of the magnetic structure 2a extends into the support member 10 and is supported on the support boss 105. By providing the support boss 105, on the one hand, the assembly position of the support member 10 and the magnetic structure 2a can be ensured so that the size of the formed sealing cavity 100 meets the requirements, and the support member 10 and the magnetic structure 2a can be assembled in place; on the other hand, when a glue storage groove 40 is provided between the support member 10 and the magnetic structure 2a, the support boss 105 is located at the end of the glue storage groove 40 away from the groove opening, so as to prevent the glue-like connecting adhesive 50 from falling into the sealing cavity 100.

[0114] The magnetic structure 2a can have various specific structures, which can be selected according to actual needs. This embodiment provides two magnetic structures 2a, and the specific structures of the two magnetic structures 2a are different.

[0115] In one type of magnetic structure 2a, the magnetic structure 2a is a single-piece structure. For example, as shown... Figures 1 to 11As shown, the magnetic structure 2a includes a first magnetic yoke 21, which includes a magnetic yoke body 213 and first magnetic yoke portions 214 connected to the magnetic yoke body 213. The main magnet 22 has first magnetic yoke portions 214 spaced apart on both sides in the second direction Y. For example, two first magnetic yoke portions 214 are provided, spaced apart on both sides of the main magnet 22 in the second direction Y, that is, the first magnetic yoke portions 214 are spaced apart from the main magnet 22 in the second direction Y. A magnetic gap 23 is formed between the main magnet 22 and the first magnetic yoke portions 214. The magnetic yoke body 213 and the first magnetic yoke portions 214 are an integral structure, giving them a high connection strength. In this embodiment, the first magnetic yoke portions 214 are connected to the support member 10 to achieve the connection between the first magnetic yoke body 21 and the support member 10. In this embodiment, the main magnet 22 is fixedly connected to the magnetic yoke body 213.

[0116] In some optional embodiments, the first magnetic yoke 214 in this embodiment may be an integral structure. Of course, it is understood that the first magnetic yoke 214 may also be a split structure. For example, the first magnetic yoke 214 may be composed of multiple magnetic blocks spaced apart along the first direction X. This embodiment does not limit this.

[0117] In at least one possible implementation, when the magnetic structure 2a includes a first magnetic yoke 21, a through hole 211 is provided on the magnetic yoke body 213. A through hole 212 may be provided on the magnetic yoke body 213.

[0118] In some optional embodiments, when the magnetic structure 2a includes the first magnetic yoke 21, the specific location of the glue storage groove 40 between the support member 10 and the magnetic structure 2a can be between the support member 10 and the first magnetic yoke 214. That is, a glue storage groove 40 is formed between the support member 10 and the first magnetic yoke 214. In this case, the glue storage groove 40 can be used to increase the connection strength between the support member 10 and the first magnetic yoke 214.

[0119] In one possible implementation, when the magnetic structure 2a includes a first magnetic yoke 21, the end face of the first magnetic yoke portion 214 facing away from the magnetic yoke body 213 abuts against the support boss 105, so that the support boss 105 supports the entire magnetic structure 2a by supporting the first magnetic yoke portion 214.

[0120] In at least one possible implementation, such as Figure 5As shown, the first magnetic yoke 21 includes a second magnetic yoke portion 215. The second magnetic yoke portion 215 is provided at least one end of the magnetic yoke body 213 in the first direction X. The second magnetic yoke portion 215 can cooperate with the support member 10 to form a relatively sealed cavity 100. By providing the second magnetic yoke portion 215, the height of the sealed cavity 100 can be greater than the height of the support member 10, thereby allowing the size of the sealed cavity 100 to be larger. Furthermore, by providing the second magnetic yoke portion 215, the overall volume of the magnetic structure 2a can be increased, allowing the magnetic structure 2a and the main magnet 22 to form a stronger magnetic field.

[0121] It should be noted that the first magnetic yoke 214 and the second magnetic yoke 215 are connected to different sides of the magnetic yoke body 213, thereby making the first magnetic yoke body 21 form a semi-closed structure. With the support member 10 and the diaphragm assembly 11, a relatively closed sealed cavity 100 can be obtained.

[0122] It should also be noted that the magnetic yoke body 213 may have a second magnetic yoke portion 215 at both ends in the first direction X, or the magnetic yoke body 213 may have a second magnetic yoke portion 215 at one end in the first direction X. The specific configuration can be adjusted according to the requirements.

[0123] In some alternative embodiments, the first magnetic yoke 214 may extend into the support member 10, and the second magnetic yoke 215 may extend into the support member 10. Alternatively, the second magnetic yoke 215 may not extend into the support member 10, but may abut against the end face of the support member 10 away from the diaphragm assembly 11, thus achieving mutual cooperation with the support member 10.

[0124] In one possible implementation, such as Figure 5 As shown, the dimension of the first magnetic yoke 214 in the third direction Z is larger than that of the second magnetic yoke 215 in the third direction Z; that is, the height of the first magnetic yoke 214 is greater than the height of the second magnetic yoke 215. This arrangement causes the first magnetic yoke 214 to extend further toward the diaphragm assembly 11 than the second magnetic yoke 215, resulting in a larger area of ​​the portion of the first magnetic yoke 214 opposite the main magnet 22. This effectively enhances the strength of the magnetic field generated by the cooperation of the first magnetic yoke 214 and the main magnet 22. The smaller height of the second magnetic yoke 215 effectively avoids other components of the sound-generating device; for example, it can provide an installation position for the centering support 3, making the structural distribution of the sound-generating device more rational.

[0125] In at least one embodiment, the surface of the first yoke portion 214 facing away from the yoke body 213 is higher than or flush with the surface of the main magnet 22 facing away from the yoke body 213. This arrangement allows for a greater magnetic field strength generated by the main magnet 22 and the first yoke portion 214.

[0126] Optionally, such as Figure 7 As shown, the end face of the first yoke portion 214 facing away from the yoke body 213 is higher than the surface of the main magnet 22 facing away from the yoke body 213. That is, the end face of the first yoke portion 214 facing away from the yoke body 213 extends beyond the surface of the main magnet 22 facing away from the yoke body 213. Of course, it can be understood that the surface of the first yoke portion 214 facing away from the yoke body 213 can also be flush with the surface of the main magnet 22 facing away from the yoke body 213; this embodiment does not limit this.

[0127] Please continue reading Figure 7 The surface of the main magnet 22 away from the magnetic yoke body 213 may also be provided with a first magnetic sheet 25, which can be used to enhance the magnetic field strength of the main magnet 22.

[0128] In some optional embodiments, the second magnetic yoke 215 in this embodiment can be an integral structure. Of course, it is understood that the second magnetic yoke 215 can also be a split structure. For example, the second magnetic yoke 215 is composed of multiple magnetic blocks spaced apart along the second direction Y. This embodiment does not limit this.

[0129] In this embodiment, the second magnetic yoke 26, the support member 10, the auxiliary magnet 24, and the diaphragm assembly 11 cooperate to form a sealed cavity 100.

[0130] Optionally, when the first magnetic yoke 21 includes the second magnetic yoke portion 215, such as Figure 9 and Figure 10 As shown, the first limiting portion 102 of the support member 10 abuts against the second magnetic yoke portion 215, that is, the surface of the second magnetic yoke portion 215 facing away from the sealing cavity 100 abuts against the first limiting portion 102. The number of first limiting portions 102 is the same as the number of second magnetic yoke portions 215 and they correspond one-to-one. The first limiting portion 102 abuts against the corresponding second magnetic yoke portion 215 to restrict the movement of the second magnetic yoke portion 215 relative to the support member 10 in the first direction X.

[0131] Optionally, such as Figure 5 As shown, when the magnetic structure 2a includes a second yoke portion 215, the clearance notch 2151 of the magnetic structure 2a can be provided on the second yoke portion 215, or the clearance notch 2151 can be provided between the first yoke portion 214 and the second yoke portion 215. The second limiting portion 104 of the support member 10 contacts the first yoke portion 214 and / or the second yoke portion 215 to form a relatively sealed sealing cavity 100.

[0132] In at least one implementation, such as Figures 1 to 11As shown, the first magnetic yokes 21 of the multiple sound-generating modules 20 are an integral structure, that is, the multiple first magnetic yokes 21 are connected sequentially to form a whole, or the multiple first magnetic yokes 21 are a single integral part that can be obtained in a single processing step. This configuration enables the sharing of the first magnetic yokes 21 of the multiple sound-generating modules 20.

[0133] Based on the fact that multiple first magnetic yokes 21 are integrated into a single structure, such as Figure 5 As shown, there are two sound-generating modules 20. The two first magnetic yokes 21 are connected into an integral structure. The two ends of the integral structure in the first direction X are provided with second magnetic yokes 215, while the middle part is not provided with second magnetic yokes 215.

[0134] Of course, this is understandable. Figure 14 and Figure 15 As shown, the multiple first magnetic yokes 21 may not be a single integrated structure, but rather a separate structure that is independent of each other. This embodiment does not limit this.

[0135] Based on the premise that the multiple first magnetic yokes 21 are not a single-piece structure, each first magnetic yoke 21 has a second magnetic yoke portion 215 at both ends of the magnetic yoke body 213 in the first direction X. For example Figure 15 As shown, there are two sound-generating modules 20. The support member 10 has a first limiting part 102 in the area between the two sound-generating modules 20. The two surfaces of the first limiting part 102 in the first direction X respectively abut against the two second magnetic yokes 215 to limit the two first magnetic yokes 21.

[0136] In another type of magnetic structure 2a, the magnetic structure 2a is a split structure. For example, as shown... Figure 12 and Figure 13 As shown, the magnetic structure 2a includes a second magnetic yoke 26 and a secondary magnet 24. The secondary magnet 24 is spaced apart on both sides of the main magnet 22 in the second direction Y, forming a magnetic gap 23 between the main magnet 22 and the secondary magnet 24. In this embodiment, the main magnet 22 is connected to the second magnetic yoke 26, and the secondary magnet 24 is connected to the second magnetic yoke 26 and / or the support member 10. In this embodiment, the secondary magnet 24 and the second magnetic yoke 26 are not integral structures, so the specific structure of the secondary magnet 24 is not affected by the second magnetic yoke 26. For example, the second magnetic yoke 26 can be a thin plate-like structure, while the secondary magnet 24 can be a thick block-like structure. Thus, the secondary magnet 24 has a larger volume, enabling it to cooperate with the main magnet 22 to form a stronger magnetic field.

[0137] Optionally, when the magnetic structure 2a includes a second magnetic yoke 26, the through hole 211 and the through hole 212 can both be disposed on the second magnetic yoke 26 so as not to affect the magnetism of the auxiliary magnet 24.

[0138] In some optional embodiments, when the magnetic structure 2a includes a second yoke 26 and a secondary magnet 24, the specific location of the glue storage groove 40 between the support member 10 and the magnetic structure 2a can be between the support member 10 and the secondary magnet 24. That is, a glue storage groove 40 is formed between the support member 10 and the secondary magnet 24. In this case, the glue storage groove 40 can be used to increase the connection strength between the support member 10 and the secondary magnet 24.

[0139] In one possible implementation, when the magnetic structure 2a includes a secondary magnet 24, the secondary magnet 24 abuts against the support boss 105, so that the support boss 105 supports the entire magnetic structure 2a by supporting the secondary magnet 24.

[0140] In at least one embodiment, the surface of the secondary magnet 24 facing away from the second yoke 26 is higher than or flush with the surface of the primary magnet 22 facing away from the second yoke 26. This arrangement allows for a greater strength of the magnetic field generated by the primary magnet 22 and the secondary magnet 24. Optionally, a first magnetic conductive sheet 25 may be provided on the primary magnet 22, and a second magnetic conductive sheet may be provided on the secondary magnet 24, the second magnetic conductive sheet being used to increase the strength of the secondary magnet 24.

[0141] In some alternative embodiments, such as Figure 12 As shown, the second magnetic yoke 26 has extensions 261 extending along the second direction Y on both sides, and the auxiliary magnet 24 is correspondingly disposed on the extensions 261. By providing the extensions 261, the auxiliary magnet 24 can be supported, making the entire sound-generating device structure more neat.

[0142] Optionally, the sub-magnet 24 and the extension 261 can be bonded together with adhesive to eliminate gaps between them and improve the fixing strength of the sub-magnet 24.

[0143] In at least one embodiment, such as Figure 12 and Figure 13 As shown, the support member 10 has a receiving groove 101 at the position corresponding to the secondary magnet 24, and at least a portion of the secondary magnet 24 is disposed in the receiving groove 101. By providing the receiving groove 101, the secondary magnet 24 can be limited, reducing the risk of the secondary magnet 24 moving relative to the support member 10. Furthermore, by providing the receiving groove 101, the precise assembly of the secondary magnet 24 can be facilitated, reducing the assembly difficulty.

[0144] It should be noted that the receiving groove 101 in this embodiment has a groove wall in the first direction X but no groove wall in the second direction Y. This configuration allows the auxiliary magnet 24 to have a larger volume and stronger magnetism; on the other hand, there is no obstruction between the auxiliary magnet 24 and the main magnet 22, allowing the auxiliary magnet 24 and the main magnet 22 to cooperate to generate a stronger magnetic field.

[0145] In some alternative embodiments, such as Figure 12 As shown, the perforation 211 is located on one side of the extension 261 in the first direction X, that is, the orthographic projection of the perforation 211 and the extension 261 in the second direction Y does not coincide. This arrangement makes full use of the space of the second magnetic yoke 26 and reduces the impact of the perforation 211 on the structural strength of the extension 261, so as to ensure the effect of supporting the auxiliary magnet 24.

[0146] In at least one implementation, please continue to see Figure 12 The second magnetic yoke 26 is provided with a folded edge 262 that bends toward the support member 10. The first limiting part 102 of the support member 10 can abut against the folded edge 262, thereby limiting the second magnetic yoke 26.

[0147] Optionally, the folded edge 262 may be provided with a clearance notch 2151, and the second limiting portion 104 of the support member 10 may abut against the folded edge 262 and the auxiliary magnet 24 to cover the clearance notch 2151, thereby forming a relatively sealed cavity 100. At the same time, the second limiting portion 104 also realizes the positioning of the auxiliary magnet 24, realizing the multiple uses of the second limiting portion 104.

[0148] In at least one implementation, such as Figure 12 As shown, the second magnetic yokes 26 of the multiple sound-generating modules 20 are an integral structure, that is, the multiple second magnetic yokes 26 are connected sequentially to form a whole, or the multiple second magnetic yokes 26 are a single integral part that can be obtained in a single processing step. This configuration enables the sharing of the second magnetic yokes 26 of the multiple sound-generating modules 20.

[0149] It is understandable that the multiple second magnetic yokes 26 may not be a single integrated structure, but rather a separate structure that is independent of each other. This embodiment does not limit this.

[0150] Based on the fact that the multiple second magnetic yokes 26 are not a single-piece structure, each second magnetic yoke 26 has a flange 262 at both ends in the first direction X, and each flange 262 can abut against the first limiting part 102.

[0151] The above are the specific structures of the two magnetic circuit structures provided in this embodiment. Regardless of the structure, they can cooperate with the support member 10 to form a relatively sealed cavity 100, and can also cooperate with the main magnet 22 to generate a magnetic field of greater intensity. The specific structure can be selected according to actual needs.

[0152] In at least one possible implementation, such as Figure 5As shown. The sound-generating device also includes a centering support 3, which supports the voice coil 12 so that the voice coil 12 can move in the magnetic gap 23 along the third direction Z. The centering support 3 also has the function of resetting the voice coil 12.

[0153] For example, a plurality of second limiting portions 104 are provided on one end face of the support member 10 along the axial direction. The second limiting portion 104 is the second limiting portion 104 mentioned above in this embodiment. A plurality of centering support plates 3 are provided, and each voice coil 12 of the sound-generating module 20 is connected to a centering support plate 3 at both ends in the first direction X. The end of the centering support plate 3 facing away from the voice coil 12 is connected to the support member 10. Each centering support plate 3 is provided with a positioning notch 35 that cooperates with the second limiting portion 104. The second limiting portion 104 passes through the corresponding positioning notch 35 and abuts against the centering support plate 3 to limit the centering support plate 3.

[0154] In some alternative embodiments, the second limiting part 104 can engage with the positioning notch 35 to limit the centering support piece 3.

[0155] In this embodiment, the clearance notch 2151 on the magnetic structure 2a is used to avoid the centering support piece 3, so as to facilitate the assembly and elastic deformation of the centering support piece 3, and so that the magnetic structure 2a will not affect the centering support piece 3.

[0156] In this embodiment, the end of the centering support 3 that is away from the voice coil 12 is connected to the end face of one end of the support member 10 in the axial direction, for example, by adhesive bonding.

[0157] It should be noted that each voice coil 12 of the sound-generating module 20 is provided with a centering support plate 3 at both ends in the first direction X, so that both ends of the voice coil 12 can be supported by the centering support plate 3, thereby making the voice coil 12 more balanced, reducing the risk of the voice coil 12 tilting, thereby reducing the risk of noise when the sound-generating device is working, and ensuring the sound quality of the sound-generating device.

[0158] Optionally, the positioning notch 35 is oriented toward the voice coil 12 to facilitate the connection between the centering support 3 and the voice coil 12.

[0159] The sound-generating device provided in this embodiment has a second limiting part 104 provided on the support member 10 and a positioning notch 35 provided on the centering support piece 3 to cooperate with the second limiting part 104. The second limiting part 104 passes through the positioning notch 35 to restrict the movement of the centering support piece 3 relative to the support member 10. With the direct fixed connection between the centering support piece 3 and the support member 10, the connection strength between the centering support piece 3 and the support member 10 is high, which reduces the risk of connection failure between the centering support piece 3 and the support member 10 and ensures the reliability of the connection between the centering support piece 3 and the support member 10.

[0160] In some optional embodiments, the centering support 3 is sandwiched between the magnetic structure 2a and the support member 10 at one end away from the voice coil 12. When the magnetic structure 2a includes a second yoke 215, the centering support 3 is sandwiched between the second yoke 215 and the end face of the support member 10 away from the diaphragm assembly 11. When the magnetic structure 2a includes a second yoke 26, the centering support 3 is sandwiched between the folded edge 262 of the second yoke 26 and the end face of the support member 10 away from the diaphragm assembly 11.

[0161] In at least one implementation, such as Figure 5 As shown, a limiting groove 36 is provided on the side of the centering support 3 away from the voice coil 12 to which it is connected. At this time, at least a portion of the first limiting part 102 provided on the end face of one end of the support member 10 in the axial direction is placed in the limiting groove 36. This arrangement can assist the second limiting part 104 in fixing and limiting the centering support 3, further reducing the risk of the centering support 3 moving relative to the support member 10.

[0162] It should be noted that in this embodiment, the first limiting part 102 and the centering support 3 are arranged in the first direction X, so that the first limiting part 102 can restrict the movement of the centering support 3 in the first direction X.

[0163] As can be seen, the first limiting part 102 in this embodiment can not only be used to abut against the magnetic structure 2a to limit the magnetic structure 2a, but also to limit the centering support piece 3, realizing the multiple uses of the first limiting part 102 and enriching the function of the first limiting part 102.

[0164] In at least one embodiment, such as Figure 9 and Figure 10 As shown, the end face of one end of the support member 10 along the axial direction is provided with a plurality of support plate grooves 106, and the centering support plate 3 is correspondingly disposed in the support plate grooves 106. By providing the support plate grooves 106, the centering support plate 3 can be installed, and the movement of the centering support plate 3 can be limited by the support plate grooves 106, further reducing the risk of the centering support plate 3 moving relative to the support member 10.

[0165] In this embodiment, the shape of the support groove 106 matches that of the centering support 3, so that the end of the centering support 3 away from the voice coil 12 can be limited in the support groove 106.

[0166] Optionally, at least a portion of the second limiting part 104 is located in the support groove 106 so that it can be smoothly inserted into the positioning notch 35.

[0167] In some alternative embodiments, such as Figure 1 and Figure 2As shown, the centering support 3 may also be provided with a relief groove 37, which is used to avoid the voice coil 12 connected to the centering support 3. By providing the relief groove 37, the connection area between the centering support 3 and the voice coil 12 can be designed to be larger based on the voice coil 12, thereby improving the connection strength and reliability between the centering support 3 and the voice coil 12 and reducing the risk of separation between the two.

[0168] Optionally, when the centering support 3 includes a first connecting portion 32 and a transition portion 33, such as Figure 1 As shown, a positioning notch 35 is formed between the first connecting portion 32 and the transition portion 33. The second limiting portion 104 preferably abuts against the first connecting portion 32, thereby limiting the movement of the first connecting portion 32 to achieve the limiting of the centering support 3. There may be a gap between the second limiting portion 104 and the transition portion 33, so that the second limiting portion 104 and the transition portion 33 will not generate friction, reducing the resistance to the movement of the voice coil 12.

[0169] In this embodiment, a positioning notch 35 is formed between each first connecting part 32 and the transition part 33, that is, the centering support piece 3 is provided with two positioning notches 35. Correspondingly, the support member 10 is provided with two second limiting parts 104 for each centering support piece 3, and the two second limiting parts 104 are inserted into the corresponding positioning notches 35. By providing two positioning notches 35, the positioning effect of the centering support piece 3 can be further improved, and the risk of the centering support piece 3 moving relative to the support member 10 can be reduced.

[0170] In some optional embodiments, the limiting groove 36 is provided on the main body of the support piece, that is, the limiting groove 36 is provided on the side of the main body of the support piece 31 away from the first connecting part 32. Since two first connecting parts 32 are provided, and both first connecting parts 32 are in contact with and connected to the surface of the support member 10, the connection strength between the centering support piece 3 and the support member 10 will not be reduced even if the limiting groove 36 is provided on the main body of the support piece.

[0171] In at least one possible implementation, such as Figure 1 and Figure 2 As shown, the transition section 33 includes two symmetrically arranged curved sections 331, each in a U-shape. By symmetrically arranging two curved sections 331, the structural strength of the centering support 3 is improved, reducing the risk of breakage. Furthermore, the force on the voice coil 12 is more balanced, reducing the risk of skewness due to imbalance in the centering support 3 and improving the reliability of the voice coil 12 support. The U-shape of the curved sections 331 simplifies their structure, facilitating manufacturing. Additionally, the curved sections 331 occupy less space in the first direction X, contributing to the miniaturization and weight reduction of the centering support 3.

[0172] In at least one embodiment, one end of the curved section 331 may be connected to the main body of the support piece, and the other end may be connected to the second connecting part 34.

[0173] To further reduce the risk of voice coil 12 becoming unbalanced, in this embodiment, the centering support 3 has an axisymmetric structure, wherein the axis of symmetry of the centering support 3 extends along the width direction of the centering support 3. This configuration further reduces the risk of the centering support 3 becoming unbalanced, therefore, the voice coil 12 will not become unbalanced due to the movement of the centering support 3. It should be noted that when the centering support 3 is mounted on the support member 10, the width direction of the centering support 3 is the same as the first direction X, and the two first connecting portions 32 are located on both sides of the transition portion 33 in the length direction of the centering support 3, with the length direction of the centering support 3 perpendicular to the width direction.

[0174] Optionally, when the centering support 3 includes a second connecting portion 34, a clearance groove 37 is provided in the second connecting portion 34. That is, a clearance groove 37 is provided on the side of the second connecting portion 34 away from the transition portion 33. With this configuration, the portion of the second connecting portion 34 without the clearance groove 37 can connect with the voice coil 12, and this portion has a larger area, thus improving the strength of the connection with the voice coil 12. For example, the second connecting portion 34 extends along the second direction Y, and both ends of the second connecting portion 34 are connected to the voice coil 12 to further improve the connection strength with the voice coil 12.

[0175] In at least one possible implementation, such as Figure 10 As shown, a crossbeam 107 is provided between the two walls in the width direction of the support member 10. The crossbeam 107 can serve as a support structure for the centering support plate 3. It should be noted that the crossbeam 107 divides the support member 10 into multiple through holes, and the multiple through holes correspond one-to-one with multiple sound generating modules 20. At least part of the voice coil 12, main magnet 22 and other components of each sound generating module can be located in the corresponding through hole.

[0176] In this embodiment, as Figure 9 and Figure 10 As shown, the centering support 3 near the end of the support member 10 can be directly fixed to the support member 10. That is, the centering support 3 located on the side of the voice coil 12 that is not opposite to the other voice coil 12 is directly fixed to the support member 10. The centering support 3 away from the end of the support member 10 can be connected to the crossbeam 107, and then connected to the support member 10 through the crossbeam 107. That is, at least a portion of the centering support 3 located on the opposite sides of two adjacent voice coils 12 is connected to the crossbeam 107 for fixation.

[0177] It should be noted that the centering support 3, located on opposite sides of two adjacent voice coils 12, can be partially connected to the crossbeam 107 and partially connected to the support member 10. For example, as shown... Figure 9As shown, the main body of the centering support 3, which is located on opposite sides of two adjacent voice coils 12, is fixedly connected to the crossbeam 107, and the first connecting part 32 is directly connected to the end face of the support member 10 away from the diaphragm assembly 11.

[0178] In at least one embodiment, since each of the two opposing voice coils 12 needs to be connected to two centering supports 3, there will be two centering supports 3 on opposite sides of two adjacent voice coils 12. Optionally, as Figure 2 and Figure 9 As shown, the two centering supports 3 located on opposite sides of two adjacent voice coils 12 are connected as a single unit, that is, the two centering supports 3 are connected back-to-back to form a whole. This arrangement improves the assembly efficiency of the centering supports 3, eliminating the need to install them individually on the support member 10; furthermore, the connection area between the two centering supports 3 and the crossbeam 107 is relatively large, making full use of the space on the crossbeam 107 and further enhancing the connection strength between the centering supports 3 and the crossbeam 107.

[0179] Optionally, please continue to see Figure 2 The main body of the two centering support plates 3 is connected into one piece, and the first connecting parts 32 of the two centering support plates 3 are connected into one piece in a corresponding manner.

[0180] It should be noted that, for the centering support 3 located on opposite sides of two adjacent voice coils 12, such as Figure 9 As shown, a second limiting part 104 is also provided in the middle of the support member 10 near the crossbeam 107 to limit the centering support piece 3 located on opposite sides of the two adjacent voice coils 12.

[0181] It is understood that if the magnetic structure 2a has a clearance notch 2151 near the crossbeam 107, the second limiting part 104 near the crossbeam 107 can be used to cover the clearance notch 2151 to form a relatively sealed cavity 100. If the magnetic structure 2a does not have a clearance notch 2151 near the crossbeam 107, the second limiting part 104 near the crossbeam 107 can be used to limit the centering support 3 and the magnetic structure 2a, and may not have the function of covering the clearance notch 2151. The specific choice can be made according to the needs, and this embodiment does not limit it.

[0182] Optionally, for a structure in which the first magnetic yokes 21 of multiple sound-generating modules 20 are connected as a single unit, such as Figure 2 As shown, the support body 31 of the centering support 3 located on opposite sides of the two adjacent voice coils 12 may not have a clearance groove 37. Because the crossbeam 107 does not need to have a first limiting part 102 for limiting the first magnetic yoke 21, the centering support 3 does not need to have a clearance groove 37.

[0183] In one embodiment, such as Figure 15 As shown, when the first magnetic yokes 21 of the sound-generating modules 20 are independent of each other, the first limiting part 102 between the sound-generating modules 20 is fixedly mounted on the crossbeam 107. At this time, as... Figure 16 As shown, the centering support 3 is provided with a relief groove 37, and the relief grooves 37 of the two centering support 3 cooperate with each other to form a through hole 38. The first limiting part 102 is provided through the through hole 38 to limit the two centering support 3, so that the two centering support 3 will not move in the first direction X.

[0184] In some optional embodiments, the centering support 3 in this embodiment also has a conductive function. For example, conductive lines may be provided on the surface or inside the centering support 3, with one end of the conductive line electrically connected to the voice coil 12, and the other end of the conductive line exposed outside the support member 10 and used for electrical connection to an external circuit. With this configuration, the centering support 3 has more functions and a higher utilization rate.

[0185] It is understandable that, of the two centering supports 3 corresponding to each voice coil 12, that is, of the two centering supports 3 connected to both ends of the voice coil 12 in the first direction X, only one centering support 3 may have a conductive function, while the other centering support 3 may only have a supporting function. In other words, one of the two centering supports 3 connected to both ends of the voice coil 12 in the first direction X is electrically connected to the voice coil 12, while the other is not electrically connected to the voice coil 12 but is non-electrically connected. This embodiment does not limit this.

[0186] In some optional embodiments, one end of the centering support 3 can be electrically connected to the lead of the voice coil 12, and the other end of the centering support 3 is provided with a conductive part 60, which is used to electrically connect to an external circuit.

[0187] For example, such as Figure 9 As shown, the two centering supports 3, located on opposite sides of two adjacent voice coils 12 and connected as a single unit, are centering supports 3 with conductive functions. Combined with... Figure 4 and Figure 9 A conductive part 60 is provided on the first connecting part 32 of the centering support 3. The conductive part 60 is located in the support groove 106 and exposed to the outside, so as to facilitate electrical connection with other circuits.

[0188] This embodiment also provides an electronic device, including the sound-generating device as described in the above embodiments. The electronic device can have high acoustic performance.

[0189] For example, the electronic device can be smart glasses, with a sound-generating device disposed on the temple of the smart glasses, and the length direction of the support member is the same as the length direction of the temple.

[0190] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the appended claims.

Claims

1. A centering support, characterized in that, include: The main body of the support piece is configured as a support member for connecting the sound-generating device; There are two first connecting parts, which are arranged opposite to each other and connected to the same side of the main body of the support piece. The first connecting parts are configured to connect to the support member. A transition section is located between the two first connecting sections and is connected to the main body of the support piece. At least a portion of the transition section forms a curved section, which is spaced apart from the main body of the support piece. A second connecting portion is connected to the transition portion, and the second connecting portion is spaced apart from the curved section. The second connecting portion is configured to connect the voice coil of the sound-generating device.

2. The centering support according to claim 1, characterized in that, A positioning notch is formed between the first connecting portion and the transition portion.

3. The centering support according to claim 1, characterized in that, The main body of the support piece is provided with a limiting groove on the side opposite to the first connecting part.

4. The centering support according to claim 1, characterized in that, The transition section includes two symmetrically arranged curved segments.

5. The centering support according to claim 1, characterized in that, The curved section is U-shaped, V-shaped, or S-shaped.

6. The centering support according to claim 1, characterized in that, The centering support is an axisymmetric structure, and the axis of symmetry of the centering support extends along the width direction of the centering support.

7. The centering support according to any one of claims 1-6, characterized in that, The second connecting part has a clearance groove on the side opposite to the transition part.

8. A sound-generating device, characterized in that, include: Support components; A sound-generating module is provided with multiple sets of components along a first direction. The sound-generating module includes a vibration system and a magnetic circuit system. The vibration system includes a diaphragm assembly and a voice coil connected at one end to the diaphragm assembly. The magnetic circuit system includes a magnetic structure and a main magnet disposed on the magnetic structure. The magnetic structure is connected to a support member. The magnetic structure and the main magnet are spaced apart to form a magnetic gap. The end of the voice coil facing away from the diaphragm assembly is located in the magnetic gap. The voice coil cooperates with the magnetic circuit system to drive the diaphragm assembly to vibrate. The first direction is the length direction of the support member. The sound-generating module further includes multiple centering supports, wherein the centering supports are as described in any one of claims 1-6, and the voice coil is connected to the centering supports at both ends in the first direction. The first connecting portion of the centering support and the main body portion of the support are both connected to the support member, and the second connecting portion of the centering support is connected to the voice coil.

9. The sound-generating device according to claim 8, characterized in that, A positioning notch is formed between the first connecting part and the transition part, and the support member is provided with a second limiting part that cooperates with the positioning notch, the second limiting part passing through the positioning notch.

10. The sound-generating device according to claim 8, characterized in that, The main body of the support piece is provided with a limiting groove on the side opposite to the first connecting part, and the support member is provided with a first limiting part that cooperates with the limiting groove. At least part of the first limiting part is provided in the limiting groove.

11. The sound-generating device according to claim 8, characterized in that, The support member is provided with a support plate groove, and the centering support plate is disposed in the support plate groove.

12. The sound-generating device according to claim 8, characterized in that, A crossbeam is provided between the two walls in the width direction of the support member, and the main body of the two centering supports located on opposite sides of the two adjacent voice coils is connected to the crossbeam.

13. The sound-generating device according to claim 8, characterized in that, The two centering supports located on opposite sides of the two adjacent voice coils are an integral structure.

14. The sound-generating device according to claim 8, characterized in that, One end of the centering support is electrically connected to the lead of the voice coil, and the other end of the centering support is provided with a conductive part.

15. The sound-generating device according to claim 14, characterized in that, Of the two centering supports connected to both ends of the voice coil in the first direction, one of the centering supports is electrically connected to the voice coil.

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