Loudspeaker assembly, sound-generating device and screen assembly

Abstract

The present application mainly relates to a speaker assembly, a sound-generating device and a gauze assembly, wherein the speaker assembly includes a speaker housing, a bone conduction speaker and a protective gauze. The speaker housing is formed with a housing cavity having an opening; the bone conduction speaker includes a vibration assembly and a vibration transmission plate, the vibration assembly is accommodated in the housing cavity, the vibration transmission plate is connected to the vibration assembly and is exposed through the opening; the protective gauze includes a fitting portion, a cylindrical housing portion and an annular support portion, wherein the vibration transmission plate is arranged in the cylindrical housing portion, the fitting portion is used to block one end of the cylindrical housing portion and is fitted with the outer end surface of the vibration transmission plate, the annular support portion is connected to the other end of the cylindrical housing portion and extends to the outside of the cylindrical housing portion, and the annular support portion is supported on the open end of the speaker housing. In the above manner, the present application can reduce the sound leakage of the speaker assembly.

Description

Technical Field

[0001] The present application relates to the technical field of bone conduction equipment, and in particular to a speaker assembly, a sound-generating device, and a mesh assembly. Background Art

[0002] Existing hearing aids are small loudspeakers that amplify sounds that are not audible, and then use the residual hearing of the hearing-impaired to send the sound to the auditory center of the brain. However, due to hearing loss or degeneration of the hearing-impaired, the traditional ear canal sound transmission method has limited effect on improving the hearing of the hearing-impaired. Summary of the invention

[0003] The embodiment of the present application provides a speaker assembly for a sound-generating device, the speaker assembly includes a speaker housing, a bone conduction speaker, and a protective gauze, the speaker housing is formed with a housing cavity having an opening. The bone conduction speaker includes a vibration assembly and a vibration transmission plate, the vibration assembly is accommodated in the housing cavity, the vibration transmission plate is connected to the vibration assembly and exposed through the opening; the protective gauze includes a fitting portion, a cylindrical housing portion, and an annular support portion, wherein the vibration transmission plate is arranged in the cylindrical housing portion, the fitting portion is used to block one end of the cylindrical housing portion and is fitted with the outer end surface of the vibration transmission plate, the annular support portion is connected to the other end of the cylindrical housing portion, and extends to the outside of the cylindrical housing portion, and the annular support portion is supported on the open end of the speaker housing.

[0004] The embodiment of the present application further provides a sound-generating device, comprising the above-mentioned speaker assembly, ear-hook assembly and rear-hook assembly. One end of the two ear-hook assemblies is respectively connected to a speaker assembly, and the rear-hook assembly is connected between the other ends of the two ear-hook assemblies.

[0005] An embodiment of the present application also provides a gauze assembly of a speaker assembly of a sound-emitting device, comprising a protective gauze and an auxiliary lining material which are arranged in contact with each other, the protective gauze and the auxiliary lining material are formed by hot pressing so that the protective gauze after hot pressing comprises a fitting portion, a cylindrical accommodating portion and an annular supporting portion, the fitting portion is used to seal one end of the cylindrical accommodating portion, the annular supporting portion is connected to the other end of the cylindrical accommodating portion and extends toward the outside of the cylindrical accommodating portion, the hardness of the auxiliary lining material is greater than that of the protective gauze, and is conformally arranged with the protective gauze, thereby supporting the protective gauze to maintain the shape after hot pressing.

[0006] The beneficial effects of the present application are as follows: the present application applies bone conduction technology to hearing aids, which can solve the problem that the traditional sound transmission method of traditional hearing aids has limited improvement on the hearing effect of the hearing impaired. Moreover, by setting the vibration transmission plate connected to the vibration component to be exposed through an opening, and using a protective gauze to fit the vibration transmission plate, the vibration transmission plate can be more directly close to the user's head, and the vibration of the exposed vibration transmission plate can be transmitted to the user's bones more quickly and more powerfully, thereby making the transmission of mechanical vibration more complete and less likely to lose the frequency band, which can effectively improve the hearing effect of the hearing impaired. Moreover, due to its mesh structure, the protective gauze can allow the air inside and outside the accommodating cavity to circulate, thereby reducing the sound generated by the air in the accommodating cavity due to vibration, so that the sound generated by the air vibration other than the mechanical vibration is attenuated, which can effectively reduce the sound leakage phenomenon. In addition, compared with the structure that closes the accommodating cavity, the protective gauze can also reduce the influence of the air vibration in the accommodating cavity on the mechanical vibration of the vibration transmission plate, which can effectively improve the sound quality and hearing aid effect of the sound-generating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of an embodiment of a sound-generating device provided by the present application;

[0008] Figure 2 is a schematic diagram of the disassembled structure of an embodiment of a speaker assembly provided by the present application;

[0009] Figure 3 yes Figure 1 A schematic diagram of a cross-section structure along the AA cutting line;

[0010] Figure 4 yes Figure 1 Another cross-sectional structural diagram along the AA cutting line;

[0011] Figure 5 yes Figure 4 Schematic diagram of the disassembled structure of the middle protective gauze and the annular upper cover;

[0012] Figure 6 yes Figure 1 Another schematic diagram of the cross-section structure along the AA section line;

[0013] Figure 7 This is a schematic diagram of the disassembled structure of an embodiment of a gauze mesh assembly provided by the present application;

[0014] Figure 8 It is a schematic cross-sectional structure diagram of a fitted state of an embodiment of a gauze mesh assembly provided by the present application;

[0015] Fig. 9 It is a schematic diagram of the preparation process of the gauze assembly provided by the present application;

[0016] Fig.10is another schematic diagram of the preparation process of the gauze assembly provided by the present application;

[0017] Fig.11 yes Figure 2 A schematic diagram of the disassembled structure of an embodiment of a vibration assembly;

[0018] Fig.12 yes Fig.11 A schematic diagram of the cross-sectional structure of the vibration component after assembly;

[0019] Fig.13 yes Fig.11 Another structural schematic diagram of the vibrating plate in;

[0020] Fig.14 yes Figure 1 A schematic diagram of the disassembled structure of an embodiment of a middle ear hook assembly;

[0021] Fig.15 yes Fig.13 A schematic diagram of the disassembled structure of an embodiment of a middle connecting component and an ear hook housing;

[0022] Fig.16 yes Fig.13 A schematic structural diagram of an embodiment of a second ear hook housing;

[0023] Fig.17 yes Fig.13 A schematic diagram of the disassembled structure of a middle channel member and a sound pickup assembly according to an embodiment;

[0024] Fig.18 yes Figure 1 A schematic diagram of the circuit structure of an embodiment of a control circuit assembly;

[0025] Fig.19 yes Figure 1 A schematic diagram of the disassembled structure of another embodiment of the middle ear hook housing;

[0026] Fig. 20 yes Fig.18 A schematic diagram of the disassembled structure of an embodiment of a middle function key and a waterproof lining plate;

[0027] Fig.21 yes Fig.18 A schematic diagram of the cross-sectional structure of the middle ear hook assembly along the toggle direction of the function key;

[0028] Fig. 22 It is a schematic diagram of the relationship between the howling threshold value and the position of the sound pickup component in the sound-generating device provided in the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] In the present application, the sound-generating device 1 may be a device with acoustic output capability, such as a hearing aid, a listening bracelet, a headset, a speaker, smart glasses, etc. In this embodiment, the sound-generating device 1 is a bone conduction headset as an example for illustrative description.

[0031] Existing hearing aids are small loudspeakers that amplify sounds that are not audible, and then use the residual hearing of the hearing-impaired to send the sound to the auditory center of the brain. However, due to hearing loss or degeneration of the hearing of the hearing-impaired, the traditional ear canal sound transmission method has limited improvement on the hearing effect of the hearing-impaired. After long-term research, the inventor of this application found that bone conduction technology can break through the traditional ear canal sound transmission method, effectively improve the hearing effect of the hearing-impaired, and enable the hearing-impaired to receive clearer and more stable sounds.

[0032] Bone conduction headphones can convert audio into mechanical vibrations of different frequencies, using human bones as the medium for transmitting mechanical vibrations, and then transmitting mechanical vibrations to the auditory nerve, so that users can receive sound without going through the external auditory canal and eardrum of the ear. This application applies bone conduction technology to hearing aids, which can effectively improve the defects of the prior art. Please refer to the exemplary description of the following embodiments.

[0033] like Figure 1 As shown, the sound-generating device 1 may include two speaker assemblies 10, two ear-hook assemblies 20, and a rear-hook assembly 30. Among them, one end of the two ear-hook assemblies 20 is respectively connected to a speaker assembly 10, that is, the two ear-hook assemblies 20 are each connected to a speaker assembly 10. The rear-hook assembly 30 is connected between the other ends of the two ear-hook assemblies 20 away from the corresponding speaker assemblies 10. Of course, the sound-generating device 1 may also include one or more sound pickup assemblies 40.

[0034] The speaker assembly 10 is used to convert audio into mechanical vibrations of different frequencies. When the sound-generating device 1 is worn, the speaker assembly 10 can be close to the user's head near the ear, and then the mechanical vibration can be transmitted to the human auditory system through the bones of the head. The ear hook assembly 20 is used to be hung on the user's ear. Specifically, the two ear hook assemblies 20 can be respectively provided with a battery assembly 50 and a control circuit assembly 60, and the control circuit assembly 60 is used to control the operation of the entire sound-generating device 1, such as volume control, switch / shutdown, headphone mode selection, wireless connection or data transmission. The battery assembly 50 is used to power the entire sound-generating device 1. When the sound-generating device 1 is worn, the rear hanging assembly 30 can be wrapped around the back side of the user's head. The rear hanging assembly 30 is connected between the other ends of the two ear hook assemblies 20, and the structure is reliable and stable, so that the sound-generating device 1 can be stably worn.

[0035] Taking the embodiment including a plurality of sound pickup components 40 as an example, the plurality of sound pickup components 40 can be respectively arranged on at least two of the two speaker components 10 and the rear hanging component 30, or the plurality of sound pickup components 40 are arranged at intervals on the rear hanging component 30. The plurality of sound pickup components 40 are arranged at intervals and are independent of each other, so that they can independently perform sound pickup and signal amplification. It should be noted that the "plurality" described in the embodiment refers to "at least two", such as "two", "three", "four", etc.

[0036] For example, one of the multiple sound pickup components 40 is arranged in the rear hanging component 30, and can be arranged in the middle position of the rear hanging component 30. For example, at least two sound pickup components 40 are arranged in the rear hanging component 30, and one of the sound pickup components 40 is arranged in the middle position of the rear hanging component 30, and the remaining sound pickup components 40 are spaced apart and arranged on one side or both sides of the middle position. For another example, this embodiment includes three sound pickup components 40, wherein two sound pickup components 40 are respectively arranged in two ear hanging components 20, and the other sound pickup component 40 is arranged in the rear hanging component 30. The above-mentioned sound pickup components 40 are independent of each other, and can independently perform sound pickup and signal amplification, and then can independently process sounds from different directions, so that the hearing-impaired can adapt to sounds from different directions and improve the hearing effect of the hearing-impaired.

[0037] In this embodiment, bone conduction technology is applied to hearing aid headphones. The speaker assembly 10 needs to have a good sound transmission effect. The speaker assembly 10 mainly transmits audio signals in the form of mechanical vibration. Under normal circumstances, if there is a large air vibration in the speaker assembly 10, it may affect the sound transmission effect of the mechanical vibration of the bone conduction speaker 12, reduce the sound quality, and further affect the hearing effect of the hearing-impaired. The speaker assembly 10 in this embodiment can refer to the description of the embodiment of the speaker assembly 10 of the present application below. Of course, the speaker assembly 10 of the present application below can also be applied to other types of bone conduction headphones, and is not limited to the sound-generating device 1 described in the above embodiment.

[0038] like Figures 2 to 6 As shown, the speaker assembly 10 may include a speaker housing 11, a bone conduction speaker 12, and a protective mesh 13. The bone conduction speaker 12 may be accommodated in the speaker housing 11. The protective mesh 13 may be supported on the speaker housing 11, and may be used to protect the bone conduction speaker 12.

[0039] like Figure 2 As shown, the speaker housing 11 may be formed with a receiving chamber 110 having an opening 111. The speaker housing 11 has a side with the opening 111 for being close to the user's head. The receiving chamber 110 is used to receive the bone conduction speaker 12. The mechanical vibration generated by the bone conduction speaker 12 may be transmitted to the user's head through the opening 111.

[0040] Optionally, the inner wall of the speaker housing 11 may be provided with an annular support 112. The inner wall of the speaker housing 11 refers to the inner wall of the speaker housing 11 that encloses the accommodating cavity 110. The annular support 112 may be provided adjacent to the opening 111. The annular support 112 may be used to support the protective gauze 13. In some embodiments, when the protective gauze 13 is supported on the annular support 112, the protective gauze 13 may cover or substantially cover the opening 111, thereby protecting the bone conduction speaker 12.

[0041] like Figure 2 As shown, the bone conduction speaker 12 may include a vibration component 121 and a vibration plate 122. Specifically, the vibration component 121 may be accommodated in the accommodation cavity 110. The vibration plate 122 is connected to the vibration component 121 and is exposed through the opening 111. In other words, the vibration plate 122 is exposed outside the accommodation cavity 110 through the opening 111, and the bone conduction speaker 12 as a whole forms an effect of protruding from the inside of the speaker housing 11 to the outside of the speaker housing 11, and the vibration plate 122 protrudes from the opening 111 and is exposed. When receiving an audio signal, the vibration component 121 can convert the audio signal into mechanical vibration. The vibration plate 122 connected to the vibration component 121 can transmit the vibration of the bone conduction speaker 12 to the human auditory nerve through the user's head.

[0042] like Figure 2 As shown, the protective gauze 13 is arranged at the open end of the speaker housing 11 and fits the vibration surface of the vibration plate 122. As an example, the protective gauze 13 may include a fitting portion 131, a cylindrical accommodating portion 132 and an annular supporting portion 133. The vibration plate 122 may be arranged in the cylindrical accommodating portion 132. The fitting portion 131 is used to block one end of the cylindrical accommodating portion 132 and fit with the outer end surface of the vibration plate 122. Specifically, one end of the cylindrical accommodating portion 132 may refer to an end of the cylindrical accommodating portion 132 away from the accommodating cavity 110, and the other end of the cylindrical accommodating portion 132 may refer to an end of the cylindrical accommodating portion 132 close to the accommodating cavity 110. The outer end surface of the vibration plate 122 refers to the end surface away from the accommodating cavity 110, or the end surface away from the vibration component 121. In the specific assembly process, the protective gauze 13 can cover the opening 111, and the vibration plate 122 exposed in the opening 111 can be extended into the cylindrical receiving portion 132, and then the outer end surface of the vibration plate 122 is fitted with the fitting portion 131. The annular support portion 133 can be connected to the other end of the cylindrical receiving portion 132 and extend to the outside of the cylindrical receiving portion 132. The annular support portion 133 is used to support the open end of the speaker housing 11. Specifically, the annular support portion 133 can be supported on the annular support platform 112.

[0043] By applying bone conduction technology to hearing aids, the problem that the traditional sound transmission method of traditional hearing aids has limited improvement on the hearing effect of the hearing impaired can also be solved. In addition, by setting the vibration plate 122 connected to the vibration component 121 to be exposed through the opening 111, and using the protective gauze 13 to fit the vibration plate 122, the vibration plate 122 can be closer to the user's head, and the vibration of the exposed vibration plate 122 can be transmitted to the user's bones more quickly and more powerfully. The mechanical vibration of this embodiment is more complete and not easy to lose the frequency band, which can effectively improve the hearing effect of the hearing impaired. In addition, due to its mesh structure, the protective gauze 13 can make the air inside and outside the accommodating cavity 110 circulate with each other during the above-mentioned mechanical vibration process to balance the air pressure difference inside and outside the accommodating cavity 110, thereby reducing the sound generated by the vibration of the air in the accommodating cavity 110, and attenuating the sound generated by the air vibration other than the mechanical vibration of the vibration plate 122, thereby reducing the sound leakage phenomenon. Compared with the structure that closes the accommodating chamber 110 , the protective mesh 13 can also reduce the influence of the air vibration in the accommodating chamber 110 on the vibration of the vibration transmitting plate 122 , thereby effectively improving the sound quality and sound effect of the sound generating device 1 .

[0044] like Figure 2As shown, in order to further enable the annular support portion 133 to be stably supported on the annular base 112, the speaker assembly 10 may include an annular upper cover 14, and the annular upper cover 14 is used to press the annular support portion 133 on the annular base 112, thereby reducing the possibility of the annular support portion 133 being easily torn off, so that the protective mesh 13 can be stably supported on the annular base 112.

[0045] Regarding the positional relationship and support structure between the annular upper cover 14, the annular support portion 133 and the annular support platform 112, there are several implementations as follows:

[0046] The first implementation method: Figure 3 As shown, the annular support portion 133 can be clamped between the annular upper cover 14 and the annular support platform 112, wherein the outer surface of the annular support portion 133 is close to the annular upper cover 14, and the inner surface of the annular support portion 133 is close to the annular support platform 112. In this embodiment, the inner surface of the protective gauze 13 refers to the surface that fits with the outer end surface of the vibration transmission plate 122. The inner surface of the annular support portion 133 refers to the part of the inner surface of the protective gauze 13 at the annular support portion 133. Correspondingly, the outer surface of the protective gauze 13 is arranged opposite to the inner surface of the protective gauze 13. The outer surface of the annular support portion 133 refers to the part of the outer surface of the protective gauze 13 at the annular support portion 133. Specifically, the annular upper cover 14 directly presses the outer surface of the annular support portion 133, and then presses the inner surface of the annular support portion 133 on the annular support platform 112. In other words, the annular support portion 133 extends from the inner side of the gap between the annular upper cover 14 and the annular support platform 112 to the outer side. Figure 3 Part of the structure in Figure 1 is shown, but the vibration component 121 is not shown.

[0047] Optionally, an adhesive layer may be provided between the inner surface of the annular support portion 133 and the annular support platform 112, thereby directly or indirectly bonding and fixing the annular support portion 133 and the annular support platform 112. An adhesive layer may also be provided between the outer end surface of the vibration plate 122 and the fitting portion 131, thereby bonding and fixing the vibration plate 122 and the fitting portion 131. In the actual assembly process, the protective gauze 13 may be directly or indirectly bonded to the vibration plate 122 and the speaker housing 11 by glue at the same time, thereby forming the above-mentioned adhesive layer, and then the annular upper cover 14 is covered on the annular support portion 133. Of course, an adhesive layer may also be provided between the outer surface of the annular support portion 133 and the annular upper cover 14, thereby bonding and fixing the annular support portion 133 and the annular upper cover 14.

[0048] The first embodiment is used to fix the protective gauze 13, which has a simple structure, is easy to assemble, and provides relatively stable support for the protective gauze 13.

[0049] The second implementation method: Figure 6 As shown, the inner surface of the annular support portion 133 can cover the annular upper cover 14, and the annular support portion 133 is further bent and extended to between the annular upper cover 14 and the annular support platform 112, and the outer surface of the annular support portion 133 is close to the annular support platform 112. Specifically, the inner surface of the annular support portion 133 covers the annular upper cover 14, and then extends from the outer side of the gap between the annular upper cover 14 and the annular support portion 133 to the inner side. Figure 6 Part of the structure in Figure 1 is shown, but the vibration component 121 is not shown.

[0050] Specifically, the annular support portion 133 may include an annular sub-portion 1331 and a bent sub-portion 1332. The annular sub-portion 1331 is connected to the cylindrical receiving portion 132 and extends to the outside of the cylindrical receiving portion 132. The bent sub-portion 1332 is connected to the edge of the annular sub-portion 1331 extending to the outside of the cylindrical receiving portion 132, that is, the bent sub-portion 1332 is connected to the edge of the annular sub-portion 1331 extending to the outside of the cylindrical receiving portion 132, and extends in a direction away from the edge of the annular sub-portion 1331. Optionally, the number of the bent sub-portions 1332 may be multiple, respectively extending outward from the edge of the annular sub-portion 1331, and the bent sub-portions 1332 may be spaced apart at the edge of the annular sub-portion 1331. Optionally, the bent sub-portion 1332 may also be in a continuous ring shape, extending outward from the edge of the annular sub-portion 1331.

[0051] The annular sub-portion 1331 can cover the annular upper cover 14, and the bent sub-portion 1332 extends from the annular sub-portion 1331 to between the annular upper cover 14 and the annular support platform 112. The inner surface of the annular support portion 133 is close to the annular upper cover 14. Specifically, the inner surface of the annular sub-portion 1331 and the inner surface of the bent sub-portion 1332 are close to the annular upper cover 14. The outer surface of the annular support portion 133 is close to the annular support platform 112. Specifically, the outer surface of the bent sub-portion 1332 is close to the annular support platform 112.

[0052] Optionally, an adhesive layer may be provided between the outer surface of the annular support portion 133 and the annular support platform 112, thereby bonding and fixing the annular support portion 133 and the annular support platform 112. An adhesive layer may also be provided between the outer end surface of the vibration plate 122 and the fitting portion 131, thereby bonding and fixing the vibration plate 122 and the fitting portion 131. In the actual assembly process, the protective gauze 13 may first cover the annular upper cover 14, and then be bonded to the vibration plate 122 and the speaker housing 11 at the same time by glue, thereby forming the above-mentioned adhesive layer. Of course, an adhesive layer may be provided between the inner surface of the annular support portion 133 and the annular upper cover 14, thereby bonding and fixing the annular support portion 133 and the annular upper cover 14.

[0053] The protective mesh 13 is fixed by the second embodiment. Compared with the first embodiment, by wrapping the inner surface of the annular support portion 133, a groove formed between the protective mesh 13 and the inner side surface of the annular upper cover 14 (the side facing the accommodating chamber 110) can be avoided. Furthermore, on the basis of effectively supporting the annular support portion 133, dust accumulation on the above-mentioned groove to cause blockage of the protective mesh 13 can be avoided, thereby reducing the failure rate of the sound-emitting device 1.

[0054] The third implementation method: Figure 4 and Figure 5 As shown, the annular upper cover 14 may include a first cover body 141 and a second cover body 142 which are stacked, the first cover body 141 being closer to the annular support platform 112 than the second cover body 142, and the second cover body 142 being supported on the annular support platform 112. The annular support portion 133 is clamped between the first cover body 141 and the second cover body 142. Specifically, the inner surface of the annular support portion 133 is close to the first cover body 141, and the outer surface of the annular support portion 133 is close to the second cover body 142. Figure 4 Part of the structure in Figure 1 is shown, but the vibration component 121 is not shown.

[0055] Optionally, the protective gauze 13 can be formed into a whole with the annular upper cover 14 by using the beer-covering technology. The material of the annular upper cover 14 is hard glue, such as plastic, and the hardness is greater than the hardness of the protective gauze 13. For example, the protective gauze 13 is first formed, and then the protective gauze 13 is placed in the mold corresponding to the annular upper cover 14, and then the annular upper cover 14 is formed, so that the first cover body 141 and the second cover body 142 can clamp the annular support part 133. Of course, the connection method between the protective gauze 13 and the annular upper cover 14 can also be: an adhesive layer can be provided between the inner surface of the annular support part 133 and the first cover body 141 (glue is applied, and the adhesive layer is formed after solidification), so that the annular support part 133 and the first cover body 141 are bonded and fixed. An adhesive layer is provided between the outer surface of the annular support part 133 and the second cover body 142, so that the annular support part 133 and the second cover body 142 are bonded and fixed.

[0056] After the protective gauze 13 and the annular upper cover 14 are formed into a whole, an adhesive layer can be provided between the first cover body 141 and the annular support 112 to bond and fix the first cover body 141 and the annular support 112. An adhesive layer can also be provided between the outer end surface of the vibration transmission plate 122 and the fitting portion 131 to bond and fix the vibration transmission plate 122 and the fitting portion 131.

[0057] The third embodiment is similar to the first embodiment, and the third embodiment can also be changed to be similar to the second embodiment, that is, the inner surface of the annular support portion 133 covers the second cover body 142, and the annular support portion 133 is further bent and extended to between the first cover body 141 and the second cover body 142.

[0058] By setting the annular upper cover 14 including the first cover body 141 and the second cover body 142, the first cover body 141 and the second cover body 142 can be made into one piece with the protective mesh 13 in advance, which is convenient for later assembly with the speaker housing 11. The clamping of the first cover body 141 and the second cover body 142 can make the fixing of the protective mesh 13 more stable.

[0059] After long-term research, the inventor of the present application discovered that if the opening 111 is blocked, for example by using silicone to cover the entire speaker housing 11, the air in the accommodating cavity 110 will also vibrate and generate sound. Specifically, the speaker assembly 10 will cause a large natural frequency resonance peak in the range of 20-20000 Hz when working, resulting in serious sound leakage and possible howling, thereby reducing the sound enhancement effect of the bone conduction speaker 12.

[0060] This embodiment uses a protective mesh 13 with a mesh structure to allow air to circulate inside and outside the accommodating cavity 110 instead of blocking the opening 111, which can effectively reduce the resonance peak and thus effectively reduce the sound leakage phenomenon. The protective mesh 13 of the present application has multiple meshes, which can be distributed in part of the protective mesh 13 or throughout the entire protective mesh 13, specifically including a fitting portion 131, a cylindrical accommodating portion 132, and an annular supporting portion 133. However, due to the dense and fine mesh structure, the mesh is not as good as the surrounding mesh. Figure 2-Figure 8 The mesh is not specifically shown.

[0061] Furthermore, after long-term continuous experiments, the inventors of the present application found that the mesh number of the protective gauze 13 is 250-600 meshes, and the thickness of the protective gauze 13 is 0.01mm-0.3mm, which can more effectively reduce sound leakage and ensure the strength of the protective gauze 13. Optionally, the mesh number of the protective gauze 13 is 300-500 meshes. Optionally, the mesh number of the protective gauze 13 is 380-480 meshes. Optionally, the mesh number of the protective gauze 13 is 400-430 meshes. Optionally, the thickness of the protective gauze 13 is 0.05mm-0.25mm. Optionally, the thickness of the protective gauze 13 is 0.1mm-0.2mm. Optionally, the thickness of the protective gauze 13 is 0.125mm-0.15mm.

[0062] The material of the protective mesh 13 may be at least one of PC (polycarbonate), PET (polyethylene terephthalate), and nylon.

[0063] The protective gauze 13 of this embodiment can be formed by thermoplastic molding, so that the protective gauze 13 can be formed into a structure including a fitting portion 131, a cylindrical accommodating portion 132 and an annular supporting portion 133. Specifically, the following embodiments can be used to improve the yield rate and structural stability of the protective gauze 13 molding.

[0064] The mesh assembly embodiment of the present application can be applied to the above-mentioned speaker assembly embodiment of the present application, such as Figure 7 As shown, this embodiment may include a protective gauze 13 and an auxiliary lining material 15 that are arranged in contact with each other.

[0065] like Figures 7 to 9 As shown, the protective gauze 13 and the auxiliary lining material 15 can be formed by hot pressing, so that the hot-pressed protective gauze 13 includes a fitting portion 131, a cylindrical receiving portion 132 and an annular support portion 133, wherein the fitting portion 131 is used to block one end of the cylindrical receiving portion 132, and the annular support portion 133 is connected to the other end of the cylindrical receiving portion 132 and extends to the outside of the cylindrical receiving portion 132. The hardness of the auxiliary lining material 15 is greater than the hardness of the protective gauze 13, and is arranged conformally with the protective gauze 13, thereby supporting the protective gauze 13 to maintain the shape after hot pressing. The material of the auxiliary lining material 15 can be plastic.

[0066] Since the hardness of the auxiliary lining material 15 is greater than that of the protective gauze 13, when the protective gauze 13 and the auxiliary lining material 15 are heat-pressed together, the auxiliary lining material 15 and the protective gauze 13 are deformed to a corresponding shape together, and at this time, the two are arranged conformally, and the auxiliary lining material 15 can support the protective gauze 13 to maintain a corresponding shape. During assembly, the protective gauze 13 is assembled to the speaker housing 11.

[0067] The protective gauze 13 is formed by using the above-mentioned solution of this embodiment. There are two specific preparation methods as follows:

[0068] like Fig. 9 As shown, the first preparation method comprises the following steps:

[0069] S11: Prepare the original gauze 13A and the original lining material 15B, and attach the two to each other;

[0070] S12: stamping the original gauze 13A and the original lining material 15B that are bonded to each other to obtain the protective gauze 13 and the auxiliary lining material 15 of a predetermined size;

[0071] S13: After laminating the protective gauze 13 and the auxiliary lining material 15, hot pressing is performed, and the auxiliary lining material 15 and the protective gauze 13 are conformal, so that the auxiliary lining material 15 can support the protective gauze 13 to maintain the shape after hot pressing, wherein the hot pressed protective gauze 13 includes a laminating portion 131, a cylindrical accommodating portion 132 and an annular supporting portion 133, the laminating portion 131 is used to block one end of the cylindrical accommodating portion 132, and the annular supporting portion 133 is connected to the other end of the cylindrical accommodating portion 132 and extends to the outside of the cylindrical accommodating portion 132;

[0072] S14: Peel off the auxiliary lining material 15 to obtain the protective gauze 13.

[0073] like Fig.10 As shown, the second preparation method comprises the following steps:

[0074] S21: Prepare original gauze 13A and original lining material 15B;

[0075] S22: hot-pressing the original gauze 13A and the original lining material 15B that are attached to each other, so that the hot-pressed original gauze 13A and the original lining material 15B are conformal, so that the original lining material 15B can support the original gauze 13A to maintain the shape after hot pressing;

[0076] S23: stamping the original gauze 13A and the original lining material 15B after hot pressing, so as to obtain the conformally arranged protective gauze 13 and the auxiliary lining material 15, wherein the protective gauze 13 includes a fitting portion 131, a cylindrical accommodating portion 132 and an annular supporting portion 133, the fitting portion 131 is used to block one end of the cylindrical accommodating portion 132, and the annular supporting portion 133 is connected to the other end of the cylindrical accommodating portion 132 and extends to the outside of the cylindrical accommodating portion 132;

[0077] S24: Peel off the auxiliary lining material 15 to obtain the protective gauze 13.

[0078] In this embodiment, the auxiliary lining material 15 is used to assist the protective gauze 13 in hot pressing. Since the hardness of the auxiliary lining material 15 is greater than that of the protective gauze 13, after hot pressing, the auxiliary lining material 15 can support the protective gauze 13 to maintain the shape after hot pressing, so that the protective gauze 13 with stable shape and structure can be obtained, the yield rate and structural stability of the protective gauze 13 are improved, and it is convenient to assemble it into the corresponding speaker housing 11 later. Moreover, since the protective gauze 13 can effectively maintain its shape after hot pressing, it can adapt to the structure and shape of the bone conduction speaker 12, and can effectively fit the outer end surface of the vibration plate 122. The stable mesh structure of the protective gauze 13 can allow the air inside and outside the accommodating cavity 110 to circulate, thereby reducing the sound generated by the vibration of the air in the accommodating cavity 110, and attenuating the sound generated by the air vibration other than the mechanical vibration of the vibration plate 122, thereby reducing the sound leakage phenomenon. Compared with the structure that closes the accommodating cavity 110, the protective gauze 13 reduces the sound leakage of the speaker assembly 10. That is, the gauze assembly of this embodiment can improve the structural stability of the protective gauze 13, which helps to enhance the hearing aid effect of the sound-generating device 1.

[0079] like Fig.11 and Fig.12 As shown, the vibration assembly 121 may include a magnet group 1211, a magnetic cover 1212, a coil 1213, a vibration sheet 1214, an outer bracket 1215 and an inner bracket 1216. The magnet group 1211 has a magnetization direction to form a relatively stable magnetic field. The magnet group 1211 may be a single magnet or a combination of multiple magnets (e.g. Fig.11 The magnet group 1211 shown has three magnets stacked in layers. The magnetic shield 1212 is mainly used to adjust the magnetic field generated by the magnet group 1211 so as to increase the utilization rate of the magnetic field. The coil 1213 is in the magnetic field formed by the magnet group 1211, the magnetic shield 1212, etc., and generates an Ampere force under the excitation of an electrical signal (such as an audio signal), thereby driving the vibration plate 1214 to generate mechanical vibration. The outer bracket 1215 and the inner bracket 1216 cooperate with each other to support the above-mentioned structural parts.

[0080] The magnetic cover 1212 may include a cover side portion 12121 and a cover bottom portion 12122 arranged in a cylindrical shape, and the cover bottom portion 12122 is connected to one end of the cover side portion 12121 to enclose a cylindrical groove 12123. The magnet group 1211 is arranged in the cylindrical groove 12123, and can be fixedly connected to the magnetic cover 1212 by one or a combination of magnetic adsorption, adhesive connection, clamping, threaded connection, etc. For example: the magnet group 1211 includes a plurality of magnets arranged in a stacked manner, and the vibration assembly 121 may also include a fixing member 1217, and the fixing member 1217 is used to fix the plurality of magnets of the magnet group 1211. Furthermore, the magnet group 1211 is fixed to the cover bottom portion 12122 by, for example, magnetic adsorption, adhesive connection, etc. As an example, the fixing member 1217 may include a bolt 12171 and a nut 12172. Among them, the nut 12172 is embedded in the bottom 12122 of the cover body, and the bolt 12171 can pass through the magnet group 1211 in sequence and pass out or roughly pass to the bottom 12122 of the cover body. The nut 12172 and the bolt 12171 are threadedly matched to combine the magnets of the magnet group 1211 together. In this way, since the nut 12172 is embedded in the bottom 12122 of the cover body, the size of the vibration component 121 in the axial direction of the barrel groove 12123 is compressed, which is conducive to controlling the overall size of the bone conduction speaker 12. Of course, if the above-mentioned overall size allows, the nut 12172 can also be set on the side of the bottom 12122 of the cover body away from the barrel groove 12123, and the relative fixation between the magnet group 1211 and the magnetic cover 1212 can also be achieved.

[0081] Of course, the fixing member 1217 can also fix the magnet group 1211 and the magnetic cover 1212 together. In this case, a colloid ( Fig.11 and Fig.12 ), so that the gap between the two can be filled, and the relative fixation of the two is more stable, thereby preventing the magnet group 1211 and the magnetic cover 1212 from moving relative to each other under mechanical vibration and generating noise.

[0082] When the magnet group 1211 and the magnetic cover 1212 are relatively fixed, a gap ( Fig.12 The gap is not marked in the figure, and the gap is mainly used to accommodate the coil 1213 after the vibration assembly 121 is assembled. Therefore, in the radial direction of the barrel groove 12123, the size of the gap between the magnet group 1211 and the magnetic cover 1212 is as uniform as possible to increase the uniformity of the distribution of the above-mentioned magnetic field, thereby increasing the stability of the Ampere force generated by the coil 1213 under the action of the magnetic field.

[0083] The coil 1213 is fixed to the inner bracket 1216 and is sleeved on the outer periphery of the magnet group 1211. After the vibration component 121 is assembled, the coil 1213 can be specifically extended into the gap formed by the magnet group 1211 and the magnetic cover 1212 in the radial direction of the barrel groove 12123, so that the coil 1213 is in the magnetic field formed by the magnet group 1211, the magnetic cover 1212, etc., and then generates an Ampere force under the excitation of the electrical signal. It should be noted that in order to increase the stability of the Ampere force generated by the coil 1213 under the action of the magnetic field, in the radial direction of the barrel groove 12123, the spacing between the coil 1213 and the magnet group 1211 or the magnetic cover 1212 is as equal as possible everywhere. In other words, in the process of early processing and later assembly of the vibration component 121, the coaxiality of the structural parts such as the magnet group 1211, the magnetic cover 1212, and the coil 1213 should be guaranteed as much as possible.

[0084] As an example, one end of the inner bracket 1216 (specifically, the end facing the magnet group 1211) is formed with a cover groove 12161. The coil 1213 is fixed to one end of the inner bracket 1216 and surrounds the cover groove 12161. One end of the inner bracket 1216 is covered on the magnet group 1211 so that the magnet group 1211 can partially extend into the cover groove 12161, and the coil 1213 is sleeved on the outer periphery of the magnet group 1211. In this way, the size of the vibration component 121 in the axial direction of the barrel groove 12123 can be compressed while meeting the sound generation requirements of the vibration component 121, which is conducive to controlling the overall size of the bone conduction speaker 12.

[0085] Furthermore, the vibration sheet 1214 connects the outer bracket 1215 and the inner bracket 1216 , and is used to limit the relative movement of the outer bracket 1215 and the inner bracket 1216 along the radial direction of the barrel groove 12123 , so as to facilitate the assembly of the vibration component 121 .

[0086] As an example, the outer bracket 1215 is arranged in a cylindrical shape, one end of the outer bracket 1215 is fixed to the other end of the cover side 12121 away from the cover bottom 12122, and the other end of the outer bracket 1215 away from the magnetic conductive cover 1212 and the other end of the inner bracket 1216 away from the magnet group 1211 are connected through a vibrating plate 1214.

[0087] In the related art, the outer bracket 1215 and the magnetic cover 1212 are generally fixedly connected by one or a combination of methods such as gluing, clamping, and threaded connection, which easily leads to assembly errors between the outer bracket 1215 and the magnetic cover 1212, that is, the coaxiality between the two is difficult to ensure. At this time, since the inner bracket 1216 is connected to the outer bracket 1215 via the vibration plate 1214, an assembly error occurs between the inner bracket 1216 and the magnetic cover 1212 due to the assembly error between the outer bracket 1215 and the magnetic cover 1212, resulting in a decrease in the coaxiality between the coil 1213 and the magnet group 1211 and the magnetic cover 1212, which in turn leads to a decrease in the stability of the Ampere force generated by the coil 1213 under the action of the magnetic field, that is, the stability of the mechanical vibration generated by the coil 1213 driving the vibration plate 1214 deteriorates, thereby affecting the sound quality of the vibration component 121.

[0088] Different from the related art, in the present application, the outer bracket 1215 is fixed to the other end of the cover body side 12121 away from the cover body bottom 12122 by injection molding, that is, the outer bracket 1215 and the magnetic cover 1212 can be a metal insert injection molded integral part. Such a configuration can effectively reduce the assembly error between the outer bracket 1215 and the magnetic cover 1212, ensure the coaxiality of the magnet group 1211, the magnetic cover 1212, the coil 1213 and other structural parts, and thus improve the sound quality of the vibration component 121.

[0089] Further, the other end of the outer bracket 1215 away from the magnetic cover 1212 is protrudingly provided with a first boss 12151. Correspondingly, the vibration plate 1214 is provided with a first through hole 12141 corresponding to the first boss 12151. Among them, the first boss 12151 can be movably inserted into the first through hole 12141. The number of the first boss 12151 and the first through hole 12141 can be multiple. The other end of the inner bracket 1216 can be movably embedded with the vibration plate 1214, so as to cooperate with the first boss 12151 and the first through hole 12141 to limit the relative movement of the outer bracket 1215 and the inner bracket 1216 along the radial direction of the barrel groove 12123. There are many situations in which the other end of the inner bracket 1216 and the vibration plate 1214 are movably embedded, and some corresponding examples are provided below.

[0090] In an optional case, the other end of the inner bracket 1216 facing away from the magnet group 1211 may be protruded with a second boss 12162. The vibration plate 1214 may be provided with a second through hole 12142, and the second boss 12162 may be movably inserted into the second through hole 12142. By the first boss 12151 cooperating with the first through hole 12141 and the second boss 12162 cooperating with the second through hole 12142, the relative movement of the outer bracket 1215 and the inner bracket 1216 in the radial direction of the barrel groove 12123 can be limited, while the inner bracket 1215 and the vibration plate 1214 are allowed to move relative to the outer bracket 1216 in the axial direction of the barrel groove 12123, so as to transmit the mechanical vibration generated by the vibration component 121. Please refer to Fig.13 As shown, in another optional case, the vibration plate 1214 includes an annular edge portion 12144 and one or more ribs 12145 supported in the annular edge portion 12144, and the annular edge portion 12144 is provided with a first through hole 12141. The other end of the inner bracket 1215 away from the magnet group 1211 can be provided with a through groove (not shown) corresponding to the rib, and the rib can be accommodated in the through groove, thereby limiting the relative movement of the outer bracket 1215 and the inner bracket 1216 along the radial direction of the barrel groove 12123, while allowing the inner bracket 1215 and the vibration plate 1214 to move relative to the outer bracket 1216 in the axial direction of the barrel groove 12123.

[0091] Of course, the above two optional situations can also be combined. Fig.13 As shown, the vibration plate 1214 may include an annular middle portion 12143, an annular edge portion 12144, and one or more ribs 12145 supporting and connecting the annular edge portion 12144 and the annular middle portion 12143. The annular middle portion 12143 is provided with a second through hole 12142, and the position of the second protrusion 12162 corresponds to the position of the second through hole 12142 (not limited to Fig.11 The annular edge portion 12144 defines a first through hole 12141 , and the position of the first protruding column 12151 corresponds to the position of the first through hole 12141 .

[0092] Combination Figures 2 to 6As described above, the vibration plate 122 is connected to the vibration assembly 121 and is exposed through the opening 111, so as to transmit the above-mentioned mechanical vibration to the user's auditory nerve through the user's head, thereby allowing the user to hear the sound. As an example, the vibration plate 122 is arranged at the other end of the inner bracket 1216 away from the magnet group 1211, and abuts against the vibration plate 1214, so that the inner bracket 1216 and the vibration plate 1214 can drive the vibration plate 122 to vibrate. Furthermore, the bone conduction speaker 12 may also include an elastic shock-absorbing plate 123. Specifically, the vibration assembly 121 may further include an elastic shock-absorbing plate 123. Among them, the outer edge of the elastic shock-absorbing plate 123 is fixedly connected to the speaker housing 11. In combination Figures 2 to 6 Regarding the description of the protective gauze 13, the outer edge of the elastic shock-absorbing sheet 123 can be specifically between the speaker housing 11 and the protective gauze 13, that is, the outer edge of the elastic shock-absorbing sheet 123 can be fixed on the speaker housing 11, and the protective gauze 13 is fixed on the elastic shock-absorbing sheet 123. For the first embodiment mentioned above, the elastic shock-absorbing sheet 123 can be clamped between the annular support 112 and the annular support portion 133. Specifically, the inner surface of the annular support portion 133 can be glued to the elastic shock-absorbing sheet 123, and the elastic shock-absorbing sheet 123 can be glued to the annular support 112. For the second embodiment mentioned above, the elastic shock-absorbing sheet 123 can be clamped between the annular support 112 and the annular support portion 133. Specifically, the outer surface of the annular support portion 133 can be glued to the elastic shock-absorbing sheet 123, and the elastic shock-absorbing sheet 123 can be glued to the annular support 112. For the third embodiment mentioned above, the elastic damping sheet 123 can be clamped between the second cover 142 and the annular support platform 112. Specifically, the elastic damping sheet 123 can be fixed to the second cover 142 and the annular support platform 112 respectively by gluing.

[0093] Furthermore, the elastic shock-absorbing sheet 123 is arranged between the vibration transmission plate 122 and the other end of the inner bracket 1216 away from the magnet group 1211, so as to reduce the vibration of the inner bracket 1216 in the axial direction of the barrel groove 12123, thereby increasing the stability of the vibration of the vibration transmission plate 122.

[0094] As an example, the second boss 12162 may include a first column section 12163 and a second column section 12164 connected in one piece. The first column section 12163 is closer to one end of the inner bracket 1216 than the second column section 12164, and the cross-sectional area of ​​the second column section 12164 is smaller than the cross-sectional area of ​​the first column section 12163 in the cross section perpendicular to the axial direction of the barrel groove 12123. In this way, the first column section 12163 is inserted into the second through hole 12142, and the second column section 12164 is inserted into the vibration plate 122, so that the inner bracket 1216 drives the vibration plate 122 to vibrate. Further, the elastic damping sheet 123 is provided with a third through hole 1231. The elastic damping sheet 123 is sleeved on the second column section 12164 through the third through hole 1231 and supported on the first column section 12163.

[0095] like Fig.14 As shown, the ear hook assembly 20 is formed with a accommodating space 21 for accommodating a battery assembly 50 or a control circuit assembly 60. The ear hook assembly 20 is also formed with a connecting hole 22, and the connecting hole 22 connects the accommodating space 21 and the outside. Further, the sound pickup assembly 40 is arranged in the accommodating space 21 and is arranged adjacent to the connecting hole 22, so that the sound pickup assembly 40 can pick up sound through the connecting hole 22. Based on the above detailed description, the number of the ear hook assemblies 20 is two, and the number of the sound pickup assemblies 40 can also be two accordingly. At this time, the two sound pickup assemblies 40 correspond one-to-one to the two accommodating spaces 21, that is, each sound pickup assembly 40 is correspondingly arranged in one accommodating space 21 and is arranged adjacent to the connecting hole 22, so that the two sound pickup assemblies 40 can both pick up sound through the corresponding connecting hole 22.

[0096] As an example, the ear hook assembly 20 may include a connecting part 23 and an ear hook shell 24 connected to the connecting part 23. Among them, one end of the connecting part 23 is connected to the ear hook shell 24, and the other end of the connecting part 23 is connected to the speaker assembly 10. Further, each ear hook shell 24 is formed with a receiving space 21 and a connecting hole 22 connecting the receiving space 21 with the outside world. Based on the above-mentioned related description, the speaker assembly 10 may drive the outside air to vibrate together during the sound generation process, that is, "sound leakage" occurs. For this reason, the connecting hole 22 is opened on the side of the ear hook shell 24 away from the speaker assembly 10 to avoid the "sound leakage" caused by the pickup assembly 40 picking up the speaker assembly 10 as much as possible, thereby reducing the interference of the speaker assembly 10 to the pickup assembly 40. Moreover, the pickup assembly 40 is arranged on the side away from the speaker assembly 10 in the receiving space 21, which can also reduce the mechanical vibration generated by the speaker assembly 10 from being transmitted to the pickup assembly 40, thereby reducing the occurrence of "howling" or noise generated by the pickup assembly 40. Of course, in other embodiments, the connecting hole 22 may also be opened on the side of the ear hook shell 24 facing the speaker assembly 10, or on the side facing the user's head when the ear hook shell 24 is worn, or on the side away from the user's head when the ear hook shell 24 is worn.

[0097] like Fig.15 As shown, the connecting component 23 may include a first elastic coating 231, a second elastic coating 232 and an elastic wire 233, and a guide wire 234 may be passed through the connecting component 23. One end of the elastic wire 233 is connected to the ear hook housing 24 (specifically, the first ear hook housing 241), and the other end of the elastic wire 233 is used to connect to the speaker assembly 10. Fig.15 and Figure 1, one end of the wire 234 is electrically connected to the battery assembly 50 or the control circuit assembly 60 etc. arranged in the ear hook assembly 20, and the other end of the wire 234 is electrically connected to the speaker assembly 10 corresponding to the ear hook assembly 20. The first elastic coating 231 and the second elastic coating 232 can be formed by two-color injection molding, and wrap the elastic metal wire 233 and the wire 234. At this time, the elastic metal wire 233 is curved and has a certain rigidity / strength to form the basic form of the ear hook assembly 20, so as to facilitate the user to wear the sound device 1. The first elastic coating 231 and the second elastic coating 232 have a certain softness and appearance quality to improve the comfort and appearance of the sound device 1 in wearing. Further, the joint seam of the first elastic coating 231 and the second elastic coating 232 divides the surface of the connecting component 23 into an inner side and an outer side arranged opposite to each other. Among them, the exposed surface of the first elastic coating 231 serves as the inner side of the connecting component 23, and the exposed surface of the second elastic coating 232 serves as the outer side of the connecting component 23. It should be noted that when the sound-generating device 1 is in the wearable state, most of the inner side surface of the connecting component 23 contacts the ear of the user and the head nearby, and most of the outer side surface of the connecting component 23 does not contact the ear of the user and the head nearby.

[0098] In the related art, when making the connecting component 23, an auxiliary metal wire is generally used. Among them, the auxiliary metal wire and the elastic metal wire 233 are arranged side by side, and the two have substantially the same structural parameters such as shape, length, and radius of curvature. At this time, the related art generally first uses injection molding to form an elastic coating on the surface of the auxiliary metal wire and the elastic metal wire 233, then extracts the auxiliary metal wire, and inserts the wire 234 into the elastic coating (that is, the position where the auxiliary metal wire was originally located) to obtain the connecting component 23. However, in the above-mentioned injection molding process, since the auxiliary metal wire and the elastic metal wire 233 have a certain length and radius of curvature, the two (especially the middle area therebetween) may deviate from the original position under the impact of the injection molding material, and ultimately lead to uneven wall thickness of the elastic coating, affecting the molding quality of the connecting component 23. Especially when the design wall thickness of the elastic coating is thin, during the long-term use of the sound-generating device 1, the connecting component 23 may even have the undesirable phenomenon of "breaking the skin", which seriously affects the user experience.

[0099] Different from the related art, in the present application, not only is the elastic coating of the related art divided into two, namely the first elastic coating 231 and the second elastic coating 232, which can be injection molded twice; a through groove 235 is also formed on one side of one of the elastic coatings (for example, the first elastic coating 231). The through groove 235 is extended along the extension direction of the first elastic coating 231, and is used to place the elastic metal wire 233 and the auxiliary metal wire (which can be replaced with the wire 234 later). Furthermore, the second elastic coating 232 is injection molded on one side of the first elastic coating 231 (that is, the side where the through groove 235 is located), and covers the elastic metal wire 233 and the auxiliary metal wire, so that after the first elastic coating 231 and the second elastic coating 232 are spliced ​​and fixed, by pulling out the auxiliary metal wire, a lead channel ( Fig.15 The lead channel is used to pass the wire 234.

[0100] In short, the present application can obtain a first elastic coating 231 having a through slot 235 by a first injection molding method, and then place an elastic metal wire 233 and an auxiliary metal wire in the through slot 235, and then form a second elastic coating 232 on the side of the through slot 235 of the first elastic coating 231 by a second injection molding method to wrap the elastic metal wire 233 and the auxiliary metal wire, and finally extract the auxiliary metal wire to form a lead channel, and pass the wire 234 in the lead channel (that is, the position where the auxiliary metal wire was originally located) to obtain the connecting component 23. Obviously, since the through slot 235 has a certain depth, the first elastic coating 231 can partially wrap the elastic metal wire 233 and the auxiliary metal wire to limit them, so that the elastic metal wire 233 and the auxiliary metal wire can withstand the impact of the injection molding material, which is conducive to improving the technical problem that the elastic metal wire 233 and the auxiliary metal wire deviate from the original position. Preferably, the depth of the through slot 235 may be equal to the radius of the larger diameter of the elastic metal wire 233 and the auxiliary metal wire. In some embodiments, the number of through slots 235 may be two, and the two through slots 235 are arranged in parallel and are used to place the elastic metal wire 233 and the auxiliary metal wire respectively, so that the lead channel (that is, the location of the wire 234) and the elastic metal wire 233 are separated from each other, so that the elastic metal wire 233 and the auxiliary metal wire (or the wire 234 arranged later) do not interfere with each other. In some other embodiments, the number of through slots 235 is one, and the elastic metal wire 233 and the auxiliary metal wire are accommodated in the through slot 235 together, so that the elastic metal wire 233 can be exposed to the lead channel, which can simplify the structure of the connecting component 23.

[0101] In this embodiment, one of the first elastic coating layer 231 and the second elastic coating layer 232 may be formed first, and then the through groove 235 may be formed on the first formed one, and then the other one may be formed on the first formed one. Fig.15 The structure shown is only an exemplary description of this embodiment and is not limited to the only method of this embodiment. Fig.15 The second elastic coating 232 is formed with a through groove 235, and then the first elastic coating 231 is formed. In other words, it is equivalent to Fig.15 The second elastic coating 232 shown in FIG. 2 is used as the first elastic coating, Fig.15 The first elastic coating 231 shown in FIG. 2 serves as the second elastic coating.

[0102] Furthermore, the ear hook shell 24 is fixed to one end of the elastic metal wire 233 by injection molding. Wherein, the second elastic coating 232 further covers at least part of the outer surface of the ear hook shell 24, and the first elastic coating 231 stops between the ear hook shell 24 and the speaker assembly 10. As an example, the ear hook shell 24 may include a first ear hook shell 241 and a second ear hook shell 242, which are connected and matched to form an accommodating space 21. Wherein, the first ear hook shell 241 is fixedly connected to one end of the connecting component 23 (specifically, it can be an elastic metal wire 233) by injection molding, and the second ear hook shell 242 is fixedly connected to the first ear hook shell 241. At this time, the second elastic coating 232 covers the outer surface of the first ear hook shell 241, and the first elastic coating 231 stops between the second ear hook shell 242 and the speaker assembly 10.

[0103] Based on the above detailed description, the molding process of the ear hook assembly 20 can be: 1) forming a speaker assembly 10 and a first ear hook shell 241 at both ends of the elastic metal wire 233 respectively; 2) obtaining a first elastic coating 231 with a through groove 235 by a first injection molding method; 3) assembling the first elastic coating 231 in step 2) with the semi-finished product and the auxiliary metal wire in step 1); 4) forming a second elastic coating 232 on the side where the through groove 235 of the first elastic coating 231 is located by a second injection molding method to wrap the elastic metal wire 233 and the auxiliary metal wire, and cover the outer surface of the first ear hook shell 241; 5) pulling out the auxiliary metal wire of the semi-finished product in step 4) to form a lead channel, and then passing the wire 234 in the lead channel; 6) fixing the second ear hook shell 242 with the first ear hook shell 241 in step 5) by one or a combination of gluing, clamping, threaded connection, etc.

[0104] like Fig.16As shown, a receiving groove 25 for receiving the pickup assembly 40 is also formed in the receiving space 21. As an example, the second ear hook shell 242 may include a bottom wall 2421 and a side wall 2422 connected to the bottom wall 2421. The first ear hook shell 241 covers the side wall 2422 and is arranged opposite to the bottom wall 2421 to form the receiving space 21. At this time, the connecting hole 22 may be opened in the side wall 2422. Specifically, as shown in FIG. Fig.15 As shown, the connecting hole 22 can be opened at position C on the second ear hook shell 242. Based on the above description, the connecting hole 22 is opened on the side of the side wall 2422 away from the connecting component 23 to minimize the interference of the speaker assembly 10 on the pickup assembly 40. Furthermore, the bottom wall 2421 is protruded toward the side of the first ear hook shell 241 and is provided with a flange 2423. The flange 2423 can not only enclose the receiving groove 25, but also play a role in limiting and fixing the pickup assembly 40. In some other embodiments, the connecting hole 22 can also be opened at other positions, such as Fig.15 The O position on the first ear hook shell 241 shown in FIG. Fig.15 The B, D, E positions etc. on the second ear hook shell 242 are shown.

[0105] The inventor of the present application has found in long-term research that if the sound pickup assembly 40 is directly connected to the outside world through the connecting hole 22, the sound path between the sound pickup assembly 40 and the outside world will be shorter. When the sound-generating device 1 is in a complex environment (for example, when the air flow is more intense), the sound pickup assembly 40 will pick up more noise, and even cause "wind noise". Fig.16 and Fig.17 As shown, the present application sets a channel member 26 between the sound pickup assembly 40 and the connecting hole 22 to extend the sound path of the sound pickup assembly 40 and thereby improve the sound pickup effect of the sound pickup assembly 40 .

[0106] As an example, the channel member 26 is arranged in the accommodating space 21, and is formed with a sound inlet hole 261, a channel 262 and a sound outlet hole 263. Among them, the sound inlet hole 261 and the sound outlet hole 263 are arranged at intervals and are respectively connected to the channel 262. Preferably, the shortest distance from the sound inlet hole 261 to the sound outlet hole 263 through the channel 262 is greater than or equal to 4 mm, so as to extend the sound path of the pickup assembly 40. Further, the sound inlet hole 261 is connected to the connecting hole 22, and the sound outlet hole 263 is arranged adjacent to the pickup assembly 40, so that the sound can be transmitted to the pickup assembly 40 in sequence through the connecting hole 22, the sound inlet hole 261, the channel 262 and the sound outlet hole 263. At this time, the channel member 26 can be covered on the flange 2423, that is, the channel member 26 covers the receiving groove 25 and is used to press the pickup assembly 40 in the receiving groove 25, and the sound inlet hole 261 faces the side wall 2422 and is connected to the connecting hole 22, and the sound outlet hole 263 is connected to the pickup assembly 40. In this way, the channel member 26 not only extends the sound path of the pickup assembly 40, but also fixes the pickup assembly 40, that is, the channel member 26 can be "one piece for two purposes".

[0107] Further, the connecting hole 22 can be arranged in a slit shape, and the sound inlet hole 261 can be arranged in a slit shape accordingly, so as to increase the contact area between the sound path of the sound pickup assembly 40 and the outside world, thereby improving the sound pickup effect of the sound pickup assembly 40. Based on the above-mentioned related description, if the contact area between the sound path of the sound pickup assembly 40 and the outside world is too large, on the one hand, it may cause the "wind noise" phenomenon, and on the other hand, it will greatly reduce the waterproof and dustproof performance of the ear hook assembly 20. For this reason, the present application sets a windproof mesh cover 27 on the sound path of the sound pickup assembly 40. As an example, the windproof mesh cover 27 abuts between the channel member 26 and the ear hook shell 24, thereby separating the connecting hole 22 and the sound inlet hole 261, which is used to improve the windproof and noise reduction of the sound pickup assembly 40, and improve the waterproof and dustproof performance of the ear hook assembly 20. Among them, the windproof mesh cover 27 can include a stacked iron mesh 271 and a gauze mesh 272, and the gauze mesh 272 is closer to the channel member 26 than the iron mesh 271. It should be noted that the structural strength of the iron mesh 271 is greater than the structural strength of the gauze mesh 272, and the mesh number of the gauze mesh 272 is greater than the structural strength of the iron mesh 271. The two cooperate to enable the windproof mesh cover 27 to take into account its own structural strength, the sound pickup requirements of the sound pickup component 40, and the waterproof and dustproof requirements of the ear hook component 20.

[0108] like Fig.17As shown, the channel member 26 may include a channel top wall 264, a channel bottom wall 265 and a channel side wall 266 that are arranged to form a channel 262. The channel top wall 264 and the channel bottom wall 265 are arranged opposite to each other, and the channel side wall 266 is connected between the channel top wall 264 and the channel bottom wall 265. Further, the sound inlet 261 is opened in the channel side wall 266, and the sound outlet 263 passes through the channel bottom wall 265. At this time, the channel bottom wall 265 can also be used to press the pickup assembly 40. As an example, the channel top wall 264 and the channel bottom wall 265 are arranged in parallel and spaced apart so that the channel 262 is arranged in a flat shape to adapt to the flat structure of the ear hook shell 24. The height of the channel 262 in the direction from the channel top wall 264 to the channel bottom wall 265 can be 0.45-0.75 mm. Preferably, the height of the channel 262 in the direction from the channel top wall 264 to the channel bottom wall 265 can be 0.65 mm.

[0109] Further, the sound pickup assembly 40 may include a sound pickup element 41 and a protective cover 42. The protective cover 42 is sleeved on the outer periphery of the sound pickup element 41. Further, the protective cover 42 is provided with a groove 421 facing the channel bottom wall 265, and the sound pickup element 41 is at least partially exposed in the groove 421. It is configured in this way that when the channel member 26 presses the sound pickup assembly 40 into the accommodating groove 25, the protective cover 42 abuts against the flange 2423 and fits tightly with the flange 2423, and the groove 421 and the sound outlet hole 263 are connected to each other. At this time, the protective cover 42 may be a silicone cover, so that during the above-mentioned assembly process, the protective cover 42 can be elastically deformed to increase the fixing effect of the flange 2423 on the sound pickup assembly 40, and increase the sealing of the sound path between the sound pickup assembly 40 and the channel member 26, thereby improving the sound pickup effect of the sound pickup assembly 40. In addition, the protective cover 42 and the sound pickup element 41 can be tightly fitted, and the sound pickup part (specifically, the diaphragm) of the sound pickup element 41 can be exposed in the groove 421, so that after the sound is transmitted to the groove 421, it is not easy for the sound to leak from between the protective cover 42 and the sound pickup element 41 to the rear side of the sound pickup element 41, thereby being able to better maintain the sound pickup effect of the sound pickup element 41.

[0110] Based on the above detailed description, the number of ear hook components 20 can be two. At this time, the number of sound pickup components 40 corresponds to two, and the number of channel components 26 also corresponds to two. Specifically, a sound pickup component 40 and a channel component 26 are respectively arranged in the accommodating space 21 of each ear hook component 20, so as to improve the sound pickup effect of each sound pickup component 40. Furthermore, the number of speaker components 10 also corresponds to two, and each ear hook component 20 is respectively connected to a speaker component 10. With such a configuration, when the user wears the sound-emitting device 1, the two speaker components 10 can be respectively located on both sides of the user's head to form stereo, thereby improving the acoustic expression of the sound-emitting device 1.

[0111] The inventor of the present application has found in long-term research that in the related art, the two speaker assemblies 10 are mostly electrically connected to the same mainboard (such as the main circuit board 61 mentioned later), and the two speaker assemblies 10 are adjusted by a set of volume control buttons (such as the volume button 62 mentioned later). At this time, the volume of the two speaker assemblies 10 increases or decreases synchronously under the adjustment of the volume control button. Although such a setting can simplify the adjustment control of the speaker assembly 10 and the structure of the whole machine for users with normal hearing, it may also cause the sound heard to always be "one side is loud and the other side is small" for users with abnormal hearing, thereby affecting the user experience. For this reason, the present application sets a set of volume buttons 62 on the two ear hook assemblies 20 respectively to adjust the corresponding speaker assemblies 10 respectively, that is, the two speaker assemblies 10 can be controlled by the two sets of volume buttons 62 respectively, so that the user can adaptively adjust the two speaker assemblies 10 according to actual usage needs.

[0112] like Fig.18 As shown, the control circuit assembly 60 may include a main circuit board 61 and two sets of volume buttons 62. The battery assembly 50 is accommodated in the accommodation space 21 of one ear hook housing 24, and the main circuit board 61 is accommodated in the accommodation space 21 of the other ear hook housing 24, so as to balance the weight distribution of the sound device 1. Furthermore, two independent audio processing chips ( Fig.19 (not shown) to independently control the audio gains of the two speaker assemblies 10. The audio processing chip is, for example, an audio processing DSP chip.

[0113] As an example, Fig.16 As shown, each ear hook housing 24 (specifically, the second housing 242) is formed with a volume button hole 28 connected to the accommodating space 21. Each set of volume buttons 62 is correspondingly arranged in the volume button hole 28 of one ear hook housing 24 and exposed through the volume button hole 28, so that the user can control the corresponding audio processing chip on the main circuit board 61 by pressing the volume button 62, thereby adjusting the audio gain of the corresponding speaker assembly 10.

[0114] Furthermore, the control circuit assembly 60 may also include a sub-circuit board 63, which is disposed in the accommodation space 21 of the ear hook housing 24 accommodating the battery assembly 50, that is, the sub-circuit board 63 and the battery assembly 50 are disposed in the accommodation space 21 of the same ear hook housing 24. At this time, the sub-circuit board 63 may cover the corresponding volume button hole 28 and abut against the volume button 62, so as to withstand the pressing force applied by the user to the volume button 62. Moreover, the sub-circuit board 63 may be coupled to the main circuit board 61, so that the main circuit board 61 processes the pressing operation of the volume button 62 coupled to the sub-circuit board 63.

[0115] Based on the above detailed description, for the sound-generating device 1, one end of the rear hanging component 30 may be provided with an ear hanging component 20 and a corresponding speaker component 10, a sound pickup component 40 and its channel component 26, a battery component 50, a sub-circuit board 63 and a group of volume buttons 62, and the other end may be provided with an ear hanging component 20 and a corresponding speaker component 10, a sound pickup component 40 and its channel component 26, a main circuit board 61 and a group of volume buttons 62. Among them, the various electrical devices arranged at both ends of the rear hanging component 30 can be electrically connected through the wires built into the rear hanging component 30 to realize the transmission of control instructions, electric energy, etc.

[0116] Furthermore, since the main circuit board 61 is generally smaller in volume than the battery assembly 50, a function button 64 can be provided on one side of the main circuit board 61. The function button 64 can replace the corresponding volume button 62, or can coexist with the volume button 62, and can realize functions such as play / pause, AI wake-up, power on / off, etc., so as to expand the interactive capability of the sound device 1.

[0117] As an example, Fig.19 As shown, the control circuit assembly 60 may also include a function button 64 and a waterproof lining 65. Among them, a function switch 66 is provided on the main circuit board 61. A sliding hole 29 is provided on the ear hook housing 24 (specifically, it can be the first ear hook housing 241) containing the main circuit board 61, and the sliding hole 29 is connected to the accommodating space 21. The function button 64 can be slidably arranged in the sliding hole 29 and can toggle the function switch 66. Further, the waterproof lining 65 is arranged in the accommodating space 21 of the ear hook housing 24 containing the main circuit board 61, and is fixedly connected to the ear hook housing 24 containing the main circuit board 61, so as to form a waterproof barrier between the main circuit board 61 and the corresponding ear hook housing 24. Among them, the waterproof lining 65 is provided with a lining hole 651, and the lining hole 651 can be arranged corresponding to the sliding hole 29, for example, coaxial and equal in size. At this time, the function button 64 can be slidably penetrated in the sliding hole 29 and the lining hole 651, so as to facilitate toggling the function button 64.

[0118] like Fig. 20 and Fig.21 As shown, the function button 64 may include a sliding portion 641 and a connecting portion 642 connected in an integral manner. The connecting portion 642 is arranged on one side of the sliding portion 641 and extends in a direction away from the sliding portion 641. The sliding portion 641 may be located in the sliding hole 29 and is used for the user to perform a sliding operation. For example, the sliding portion 641 may be exposed through the sliding hole 29 on the other side away from the connecting portion 642. Further, the connecting portion 642 may include two connecting plates 643 arranged opposite to the sliding portion 641. The two connecting plates 643 are each protruding on one side away from the sliding portion 641 and are provided with a buckle 644 extending in a direction away from each other, so that the connecting portion 642 can be clamped with the side of the waterproof lining plate 65 away from the sliding portion 641. At this time, a switch accommodating area 645 is also provided on one side of one of the connecting plates 643 away from the sliding portion 641. The switch accommodating area 645 is used to accommodate the function switch 66, so that the function button 64 can toggle the function switch 66. With such a configuration, on the one hand, the function button 64 can be engaged with the function switch 66, so that the user can toggle the function switch 66 through the function button 64; on the other hand, the function button 64 can also be engaged with the ear hook shell 24 and the waterproof lining 65 to prevent the function button 64 from falling off the ear hook shell 24 and improve the waterproof and dustproof performance of the ear hook shell 24 at the function button 64.

[0119] As an example, the waterproof lining 65 is provided with a protrusion 652 surrounding the lining hole 651 protruding from one side of the sliding portion 641, that is, the protrusion 652 can be arranged along the circumference of the lining hole 651. In this way, when the function button 64 is buckled with the ear hook shell 24 and the waterproof lining 65, the protrusion 652 abuts against one side of the sliding portion 641, and the connecting portion 642 passes through the sliding hole 29 and the lining hole 651, and can move in the sliding hole 29 and the lining hole 651 to toggle the function switch 66. At this time, by reasonably designing the structure of the function button 64, the waterproof lining 65 and the matching relationship between the function button 64 and the ear hook shell 24, the protrusion 652 can always keep abutting against one side of the sliding portion 641 during the movement of the connecting portion 642 in the lining hole 651, so as to ensure the waterproof and dustproof performance of the ear hook shell 24 at the function button 64.

[0120] Of course, the above structure of the function button 64 is only an exemplary description, and the function button 64 can also be in the form of sliding, scrolling, touching, etc. Regardless of the form of the function button 64, the above waterproof structure can be used, that is, the waterproofing of the function button 64 is achieved through the corresponding structure of the waterproof lining 65, which will not be repeated here.

[0121] It should be noted that the function button 64 , the waterproof lining 65 and the shell (specifically including the first ear hook shell 241 and the second ear hook shell 242 ) can cooperate to form a button waterproof assembly 100 .

[0122] See also Fig. 22 , Fig. 22 This is a schematic diagram of the relationship between the howling threshold and the position of the sound pickup component in the sound-generating device provided by the present application. It should be noted that: Fig. 22 The horizontal axis may represent the relative position of the sound pickup assembly on the sound generating device, and the vertical axis may represent the howling threshold value (in dB) of the sound pickup assembly.

[0123] Based on the above description, the sound pickup component 40 can be mainly used to pick up the user's voice, the ambient sound of the user's environment, etc. For the hearing-impaired, the sound pickup effect of the sound pickup component 40 will affect the clarity and stability of the sound received by the hearing-impaired through the sound-emitting device 1. Theoretically, the sound pickup component 40 can be set at any position on the sound-emitting device 1, but the inventors of this application have found in long-term research that the closer the sound pickup component 40 is to the speaker component 10, the more easily it is affected by the speaker component 10, and the more likely it is to cause "howling" due to the acoustic coupling between the two. Therefore, combined with Figure 1 and Fig.15 The present application has conducted multiple tests on the relationship between the howling threshold of the sound pickup assembly 40 and its relative position on the sound generating device 1. The corresponding test results are as follows: Fig. 22 As shown, the larger the howling threshold is, the lower the probability of the pickup assembly 40 experiencing a "howling" phenomenon is, and the smaller the influence of the loudspeaker assembly 10 is.

[0124] As an example, Fig.15 As shown, the sound pickup assembly 40 can be arranged on the ear hook assembly 20; Figure 1 As shown, the sound pickup assembly 40 can also be arranged on the rear hanging assembly 30. Fig.14 Since the ear hook shell 24 is further away from the speaker assembly 10 than the connecting component 23, the sound pickup assembly 40 can correspond to the first ear hook shell 241 and the second ear hook shell 242. Fig.15 and Figure 1, the relative position O may correspond to the first ear hook shell 241, and the relative positions B, C, D, and E may correspond to the second ear hook shell 242. Specifically, when the sound-emitting device 1 is in a wearing state, the relative position O is located on the outside of the ear hook assembly 20 away from the user's head, the relative positions B and E are located above the ear hook assembly 20, and the relative position E is further away from the speaker assembly 10 than the phase position B, the relative position D is located below the ear hook assembly 20, and the relative position C is located behind the ear hook assembly 20 away from the speaker assembly 10. Further, for the rear hanging assembly 30, combined with Figure 1 , the relative positions F, G, H, and I are sequentially away from the speaker assembly 10 . Among them, the relative position I may correspond to the middle position of the rear hanging assembly 30 .

[0125] like Fig. 22 As shown, the howling threshold at the relative position O is used as a reference, that is, the howling threshold at the relative position O is defined as 0. Among them, the howling thresholds at the relative positions B, C, D, E, F, G, H, and I are all greater than 0, which means that the sound pickup assembly 40 is arranged at these positions to improve the above-mentioned "howling" phenomenon. Further, the howling thresholds at the relative positions F, G, H, and I are significantly higher than the howling thresholds at the relative positions B, C, D, and E, which means that the sound pickup assembly 40 is arranged on the rear hanging assembly 30 to improve the above-mentioned "howling" phenomenon. It is worth noting that: for the ear hanging assembly 20, the howling thresholds at the relative positions C and E are also significantly higher than the howling thresholds at the relative positions B and D, which means that the more the sound pickup assembly 40 is arranged on the ear hanging assembly 20 away from the speaker assembly 10, the more conducive to improving the above-mentioned "howling" phenomenon. For the relative position E, the ear hanging assembly 20 and the rear hanging assembly 30 may have structural interference, so it is preferred to arrange the sound pickup assembly 40 at the C position on the ear hanging assembly 20.

[0126] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A speaker assembly, characterized in that: For use in sound-generating devices, including: The speaker housing is formed with a receiving cavity having an opening; A bone conduction speaker, comprising a vibration component and a vibration transmission plate, wherein the vibration component is accommodated in the accommodation cavity, the vibration transmission plate is connected to the vibration component and exposed through the opening; at least a portion of the vibration transmission plate protrudes from the opening; A protective mesh, comprising a fitting portion, a cylindrical accommodating portion and an annular supporting portion, wherein the vibration transmission plate is arranged in the cylindrical accommodating portion, the fitting portion is used to seal one end of the cylindrical accommodating portion and is fitted with the outer end surface of the vibration transmission plate, the annular supporting portion is connected to the other end of the cylindrical accommodating portion and extends to the outside of the cylindrical accommodating portion, and the annular supporting portion is supported on the open end of the speaker housing.

2. The loudspeaker assembly according to claim 1, characterized in that: The inner wall of the speaker housing is provided with an annular support platform, and the annular support portion is supported on the annular support platform.

3. The speaker assembly according to claim 2, characterized in that: The speaker assembly comprises an annular upper cover, and the annular upper cover is used for pressing the annular support portion onto the annular support platform.

4. The speaker assembly according to claim 3, characterized in that: The annular support portion is clamped between the annular upper cover and the annular support platform, wherein the outer surface of the annular support portion is close to the annular upper cover, and the inner surface of the annular support portion is close to the annular support platform.

5. The speaker assembly according to claim 3, characterized in that: The annular support portion includes an annular sub-portion and a bent sub-portion, wherein the annular sub-portion is connected to the cylindrical accommodating portion and extends toward the outside of the cylindrical accommodating portion, and the bent sub-portion is connected to the edge of the annular sub-portion extending toward the outside of the cylindrical accommodating portion, and extends toward a direction away from the edge of the annular sub-portion, wherein the annular sub-portion covers the annular upper cover, and the bent sub-portion extends from the annular sub-portion to between the annular upper cover and the annular base, the inner surface of the annular support portion is close to the annular upper cover, and the outer surface of the annular support portion is close to the annular base.

6. The speaker assembly according to claim 3, characterized in that: The annular upper cover includes a first cover body and a second cover body which are stacked together. The first cover body is closer to the annular support platform than the second cover body. The annular support portion is clamped between the first cover body and the second cover body.

7. The loudspeaker assembly according to any one of claims 1 to 6, characterized in that: The mesh number of the protective gauze is 250-600 meshes, and / or the thickness of the protective gauze is 0.01mm-0.3mm.

8. A sound-generating device, characterized in that: include: Two loudspeaker assemblies according to any one of claims 1 to 7; Two ear hook components, one end of each of the two ear hook components is connected to a corresponding speaker component; The rear hanging component is connected between the other ends of the two ear hanging components.

9. The sound generating device according to claim 8, characterized in that: The sound-generating device comprises a plurality of sound pickup components, which are respectively arranged in at least two of the two speaker components and the rear hanging components. The plurality of sound pickup components are arranged at intervals and are independent of each other so as to be able to independently perform sound pickup and signal amplification.

10. A gauze assembly, characterized in that: A speaker assembly applied to a sound-emitting device, the gauze assembly comprising: a protective gauze and an auxiliary lining material which are arranged in contact with each other, the protective gauze and the auxiliary lining material are formed by hot pressing, so that the protective gauze after hot pressing comprises a fitting portion, a cylindrical receiving portion and an annular supporting portion, the fitting portion is used to seal one end of the cylindrical receiving portion, the annular supporting portion is connected to the other end of the cylindrical receiving portion and extends to the outside of the cylindrical receiving portion, the hardness of the auxiliary lining material is greater than the hardness of the protective gauze, and is conformally arranged with the protective gauze, thereby supporting the protective gauze to maintain the shape after hot pressing; the mesh number of the protective gauze is 250-600 meshes, and / or the thickness of the protective gauze is 0.01mm-0.3mm.

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