CN112087700A - Speaker subassembly, sound generating mechanism and gauze subassembly - Google Patents

Abstract

The application mainly relates to a speaker subassembly, sound generating mechanism and gauze subassembly, and the speaker subassembly includes speaker casing, bone conduction speaker and protection gauze. The loudspeaker shell is provided with an accommodating cavity with an opening; the bone conduction loudspeaker comprises a vibration component and a vibration transmission plate, the vibration component is contained in the containing cavity, and the vibration transmission plate is connected with the vibration component and exposed through the opening; the protective gauze comprises an attaching part, a cylindrical containing part and an annular supporting part, wherein the vibration transmission plate is arranged in the cylindrical containing part, the attaching part is used for plugging one end of the cylindrical containing part and is attached to the outer end face of the vibration transmission plate, the annular supporting part is connected to the other end of the cylindrical containing part and extends towards the outer side of the cylindrical containing part, and the annular supporting part is supported on the opening end of the loudspeaker shell. Through the mode, the sound leakage of the loudspeaker assembly can be reduced.

Description

Speaker assembly, sound-generating device, and gauze assembly

technical field

The present application relates to the technical field of bone conduction equipment, and in particular, to speaker assemblies, sound generating devices and gauze assemblies.

Background technique

The existing hearing aid is a small amplifier that amplifies the sound that was originally inaudible, and then uses the residual hearing of the hearing-impaired person to send the sound to the auditory center of the brain. However, due to the hearing impairment or degeneration of the hearing-impaired person, the traditional ear canal sound transmission method has limited improvement in the hearing effect of the hearing-impaired person.

SUMMARY OF THE INVENTION

An embodiment of the present application provides a speaker assembly of a sound generating device, which includes a speaker housing, a bone conduction speaker and a protective gauze. The speaker housing is formed with an accommodating cavity having an opening. The bone conduction speaker includes a vibration component and a vibration transmission plate, the vibration component is accommodated in the accommodating cavity, the vibration transmission plate is connected with the vibration component and is exposed through the opening; the protective gauze includes a fitting part, a cylindrical accommodating part and a ring-shaped accommodating part. The support part, wherein the vibration transmission plate is arranged in the cylindrical accommodating part, the fitting part is used to block one end of the cylindrical accommodating part and is arranged in close contact with the outer end surface of the vibration transmission plate, and the annular support part is connected to the cylindrical container. The other end of the accommodating portion extends to the outside of the cylindrical accommodating portion, and the annular support portion is supported on the open end of the speaker housing.

An embodiment of the present application further provides a sound-generating device, which includes the above-mentioned speaker assembly, an ear-hook assembly, and a rear-hook assembly. One end of the two ear hanging assemblies is respectively connected to a speaker assembly, and the rear hanging assembly is connected between the other ends of the two hanging ear assemblies.

Embodiments of the present application also provide a gauze assembly for a speaker assembly of a sound-generating device, including a protective gauze and an auxiliary lining material that are attached to each other. The protective gauze includes a fitting part, a cylindrical accommodating part and an annular supporting part, the fitting part is used to block one end of the cylindrical accommodating part, and the annular supporting part is connected to the other end of the cylindrical accommodating part, and Extending to 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.

The beneficial effects of the present application are: the application of bone conduction technology to hearing aid equipment can solve the problem that the traditional sound transmission method of traditional hearing aids can improve the hearing effect of the hearing-impaired person. The plate is exposed through the opening, and the protective gauze is used to fit the vibration transmission plate, which can make the vibration transmission plate more directly close to the user's head, and the vibration of the exposed vibration transmission plate can be transmitted to the user's head faster and more powerfully. Therefore, the transmission of mechanical vibration is more complete, and the frequency band is not easily lost, which can effectively improve the hearing effect of the hearing impaired, and the protective gauze, due to its mesh structure, can allow the air inside and outside the accommodating cavity to circulate, and then The sound produced by the vibration of the air in the accommodating cavity is reduced, so that the sound produced 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, and can effectively improve the sound quality and hearing aid effect of the sound-emitting device .

Description of drawings

1 is a schematic structural diagram of an embodiment of a sound producing device provided by the present application;

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

Fig. 3 is a cross-sectional structure schematic diagram along the A-A section line in Fig. 1;

Fig. 4 is another cross-sectional structure schematic diagram along the A-A section line in Fig. 1;

Fig. 5 is the dismantling structure schematic diagram of protective gauze and annular upper cover in Fig. 4;

Fig. 6 is another cross-sectional structure schematic diagram along the A-A section line in Fig. 1;

7 is a schematic diagram of a disassembled structure of an embodiment of the gauze assembly provided by the present application;

8 is a schematic cross-sectional structure diagram of a gauze assembly provided in the present application in a bonded state;

9 is a schematic diagram of a preparation process of the gauze assembly provided by the present application;

10 is a schematic diagram of another preparation process of the gauze assembly provided by the present application;

Fig. 11 is a disassembled structural schematic diagram of an embodiment of the vibration assembly in Fig. 2;

Figure 12 is a schematic cross-sectional structure diagram of the vibration assembly in Figure 11 after assembly;

Fig. 13 is another structural schematic diagram of the vibrating plate in Fig. 11;

FIG. 14 is a schematic view of the disassembled structure of an embodiment of the ear hook assembly in FIG. 1;

FIG. 15 is a schematic diagram of a disassembled structure of an embodiment of the connecting member and the ear hook housing shown in FIG. 13;

FIG. 16 is a schematic structural diagram of an embodiment of the second ear hook housing in FIG. 13;

Fig. 17 is a disassembled structural schematic diagram of an embodiment of the channel member and the pickup assembly in Fig. 13;

18 is a schematic diagram of a circuit structure of an embodiment of the control circuit assembly in FIG. 1;

FIG. 19 is a schematic view of the disassembled structure of another embodiment of the ear hook housing in FIG. 1;

FIG. 20 is a schematic diagram of the disassembled structure of an embodiment of the function button and the waterproof lining in FIG. 18;

Fig. 21 is a schematic cross-sectional structure diagram of the ear hook assembly in Fig. 18 along the toggle direction of the function button;

FIG. 22 is a schematic diagram showing the relationship between the howling threshold and its position of the sound pickup component in the sound generating device provided by the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

In this application, the sound generating device 1 may be a device with an acoustic output capability, such as a hearing aid, a listening bracelet, an earphone, a speaker, and smart glasses. In this embodiment, the sound generating device 1 is taken as an example of a bone conduction earphone for exemplary description.

The existing hearing aid is a small amplifier that amplifies the sound that was originally inaudible, and then uses the residual hearing of the hearing-impaired person to send the sound to the auditory center of the brain. However, due to the hearing impairment or degeneration of the hearing-impaired person, the traditional ear canal sound transmission method has limited improvement in the hearing effect of the hearing-impaired person. The inventor of the present application has found through long-term research that bone conduction technology can break through the traditional way of sound transmission through the ear canal, can effectively improve the hearing effect of the hearing-impaired, and enable the hearing-impaired to receive clearer and more stable sounds.

Bone conduction headphones can convert audio into mechanical vibrations of different frequencies, use human bones as a medium to transmit mechanical vibrations, and then transmit the mechanical vibrations to the auditory nerve, so that the user can receive it without passing through the external auditory canal and tympanic membrane of the ear. sound. The present application applies bone conduction technology to hearing aids, which can effectively improve the defects in the prior art. Please refer to the exemplary description of the following embodiments.

As shown in FIG. 1 , the sound-generating device 1 may include two speaker assemblies 10 , two ear-hook assemblies 20 and a rear-hook assembly 30 . One end of the two ear hook assemblies 20 is respectively connected to a speaker assembly 10 , that is, each of the two ear hook assemblies 20 is connected to a speaker assembly 10 . The rear hanging assembly 30 is connected between the other ends of the two hanging ear assemblies 20 facing away from the corresponding speaker assembly 10 . Of course, the sound generating device 1 may also include one or more sound pickup components 40 .

The speaker assembly 10 is used to convert audio into mechanical vibrations of different frequencies. When the sound producing device 1 is worn, the speaker assembly 10 can be close to the head of the user adjacent to 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 for hanging on the user's ear. Specifically, the two earhook assemblies 20 may be provided with a battery assembly 50 and a control circuit assembly 60, respectively, and the control circuit assembly 60 is used to control the operation of the entire sounding device 1, such as volume control, switch/shutdown, headphone mode selection, wireless connection or data transmission, etc. The battery pack 50 is used to power the entire sounding device 1 . When the sound producing device 1 is worn, the rear hanging assembly 30 can be wound around the back side of the user's head. The rear hanging assembly 30 is connected between the other ends of the two ear hanging assemblies 20, and the structure is reliable and stable, so that the sound producing device 1 can be worn stably.

Taking the present embodiment including multiple pickup assemblies 40 as an example, the multiple pickup assemblies 40 may be respectively disposed in at least two of the two speaker assemblies 20 and the rear hanging assembly 30, or the multiple pickup assemblies 40 may be arranged at intervals. on the rear hanging assembly 30 . Wherein, the plurality of sound pickup assemblies 40 are spaced apart from each other and are independent from each other, so as to be able to perform sound pickup and signal amplification independently. It should be noted that the "plurality" in this embodiment refers to "at least two", for example, "two", "three", "four" and the like.

For example, one of the plurality of pickup components 40 is disposed on the rear hanging component 30 , and may be disposed in the middle of the rear hanging component 30 . For example, at least two pickup assemblies 40 are disposed on the rear hanging assembly 30 , and one of the pickup assemblies 40 is disposed in the middle of the rear hanging assembly 30 , and the other pickup assemblies 40 are spaced on one or both sides of the middle position. For another example, this embodiment includes three pickup assemblies 40 , two pickup assemblies 40 are respectively disposed in the two ear hook assemblies 20 , and the other pickup assembly 40 is disposed in the rear mount assembly 30 . The above-mentioned sound pickup assemblies 40 are independent of each other, and can independently perform sound pickup and signal amplification, and then can independently process sounds in different directions, so that the hearing-impaired person can adapt to the sound in different directions, and the hearing effect of the hearing-impaired person can be improved. .

In this embodiment, the bone conduction technology is applied to the hearing aid earphone. The speaker assembly 10 needs to have a good sound transmission effect, and the speaker assembly 10 mainly transmits audio signals in the form of mechanical vibration. Generally, 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 then affect the hearing effect of the hearing impaired. For the speaker assembly 10 in this embodiment, reference may be made to the following description of the embodiment of the speaker assembly 10 of the present application. Of course, the following speaker assembly 10 of the present application can also be applied to other types of bone conduction earphones, and is not limited to the above-mentioned embodiments. Described sounding device 1.

As shown in FIGS. 2 to 6 , 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 can be accommodated in the speaker housing 11 . The protective gauze 13 can be supported on the speaker housing 11 , and can further be used to protect the bone conduction speaker 12 .

As shown in FIG. 2 , the speaker housing 11 may be formed with an accommodating cavity 110 having an opening 111 . One side of the opening 111 of the speaker housing 11 is provided for being close to the user's head. The accommodating cavity 110 is used for accommodating the bone conduction speaker 12 . The mechanical vibration generated by the bone conduction speaker 12 can be transmitted to the user's head through the opening 111 .

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

As shown in FIG. 2 , the bone conduction speaker 12 may include a vibration assembly 121 and a vibration transmission plate 122 . Specifically, the vibration assembly 121 may be accommodated in the accommodating cavity 110 . The vibration transmission plate 122 is connected to the vibration component 121 and is exposed through the opening 111 . In other words, the vibration transmission plate 122 is exposed outside the accommodating cavity 110 through the opening 111 , and the bone conduction speaker 12 as a whole has the effect of protruding from the speaker housing 11 to the outside of the speaker housing 11 . The vibration transmission plate 122 protrudes out of the opening 111 and then exposed. When the vibration component 121 receives the audio signal, it can convert the audio signal into mechanical vibration. The vibration transmission plate 122 connected with the vibration component 121 can transmit the vibration of the bone conduction speaker 12 to the human auditory nerve through the user's head.

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

By applying bone conduction technology to hearing aid equipment, the problem that the traditional sound transmission method of traditional hearing aids can improve the hearing effect of the hearing impaired can also be solved, and the vibration transmission plate 122 connected to the vibration component 121 is exposed through the opening 111. , and the use of the protective gauze 13 to fit the vibration transmission plate 122 can make the vibration transmission plate 122 closer to the user's head, and the vibration of the exposed vibration transmission plate 122 can be transmitted to the user's bones faster and more powerfully. The mechanical vibration of this embodiment is more complete, and the frequency band is not easily lost, which can effectively improve the hearing effect of the hearing-impaired. Moreover, due to its mesh structure, the protective gauze 13 can make the air inside and outside the accommodating cavity 110 vibrate in the above-mentioned mechanical vibration. During the process, they circulate with each other to balance the air pressure difference inside and outside the accommodating cavity 110, thereby reducing the sound generated by the air in the accommodating cavity 110 due to vibration, attenuating the sound generated by the air vibration other than the mechanical vibration of the vibration transmission plate 122, and then Sound leakage can be reduced. Compared with the structure that closes the accommodating cavity 110 , the protective gauze 13 can also reduce the influence of the air vibration in the accommodating cavity 110 on the vibration of the vibration transmission plate 122 , thereby effectively improving the sound quality and sound of the sounding device 1 . Effect.

As shown in FIG. 2 , in order to further enable the annular support portion 133 to be stably supported on the annular platform 112 , the speaker assembly 10 may include an annular upper cover 14 , which is used to attach the annular support portion to the annular support portion 112 . 133 is pressed and held on the annular platform 112 , so that the situation that the annular support portion 133 is easily torn off can be reduced, so that the protective gauze 13 can be stably supported on the annular platform 112 .

For the positional relationship and support structure among the annular upper cover 14, the annular support portion 133 and the annular support platform 112, there are the following embodiments:

The first embodiment: As shown in FIG. 3 , 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. The inner surface of the annular support portion 133 is close to the annular platform 112 . In this embodiment, the inner surface of the protective gauze 13 refers to the surface that is in contact with the outer end surface of the vibration transmission plate 122 . The inner surface of the annular support portion 133 refers to the portion of the inner surface of the protective gauze 13 on the annular support portion 133 . Accordingly, the outer surface of the protective gauze 13 is disposed opposite to the inner surface of the protective gauze 13 . The outer surface of the annular support portion 133 refers to the portion of the outer surface of the protective gauze 13 on the annular support portion 133 . Specifically, the annular upper cover 14 directly presses and holds the outer surface of the annular supporting portion 133 , and further presses and holds the inner surface of the annular supporting portion 133 on the annular platform 112 . In other words, the annular support portion 133 extends from the inside to the outside of the gap between the annular upper cover 14 and the annular base 112 . FIG. 3 shows part of the structure in FIG. 1 , and the vibration assembly 121 is not shown.

Optionally, an adhesive layer may be provided between the inner surface of the annular support portion 133 and the annular support platform 112 , so that the annular support portion 133 and the annular support platform 112 are directly or indirectly bonded and fixed. An adhesive layer may also be provided between the outer end surface of the vibration transmission plate 122 and the bonding portion 131 , so as to further bond and fix the vibration transmission plate 122 and the bonding portion 131 . In the actual assembly process, the protective gauze 13 can be directly or indirectly bonded to the vibration transmission plate 122 and the speaker housing 11 by glue to form the above-mentioned adhesive layer, and then the annular upper cover 14 is covered on the 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 , so that the annular support portion 133 and the annular upper cover 14 are bonded and fixed.

By fixing the protective gauze 13 in the first embodiment, the structure is simple, the assembly is convenient, and the support for the protective gauze 13 is relatively stable.

The second embodiment: as shown in FIG. 6 , 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 the annular upper cover 14 and the annular support platform. Between 112 , the outer surface of the annular support portion 133 is close to the annular platform 112 . Specifically, the inner surface of the annular support portion 133 covers the annular upper cover 14 , and further extends from the outside to the inside of the gap between the annular upper cover 14 and the annular support portion 133 . FIG. 6 shows part of the structure in FIG. 1 , and the vibration assembly 121 is not shown.

Specifically, the annular support part 133 may include an annular sub-part 1331 and a bent sub-part 1332 . The annular sub-portion 1331 is connected to the cylindrical accommodating portion 132 and extends to the outside of the cylindrical accommodating 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 accommodating portion 132 , that is, the bent sub-portion 1332 is connected to the edge of the annular sub-portion 1331 that extends to the outside of the cylindrical accommodating portion 132 , and extend in a direction away from the edge of the annular sub-portion 1331 . Optionally, the number of the bending sub-portions 1332 may be multiple, which respectively extend outward from the edge of the annular sub-portion 1331 , and the bending sub-portions 1332 may be provided at intervals on the edge of the annular sub-portion 1331 . Optionally, the bent sub-portion 1332 may also be in the form of a continuous ring, extending outward from the edge of the ring-shaped sub-portion 1331 .

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

Optionally, an adhesive layer may be provided between the outer surface of the annular support portion 133 and the annular support platform 112 , so that the annular support portion 133 and the annular support platform 112 are bonded and fixed. An adhesive layer may also be provided between the outer end surface of the vibration transmission plate 122 and the bonding portion 131 , so as to further bond and fix the vibration transmission plate 122 and the bonding portion 131 . In the actual assembling process, the protective gauze 13 can cover the ring-shaped upper cover 14 first, and then be bonded together with the vibration transmission 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 , so that the annular support portion 133 and the annular upper cover 14 are bonded and fixed.

The second embodiment is used to fix the protective gauze 13. Compared with the above-mentioned first embodiment, the inner surface of the annular support portion 133 is wrapped to avoid the inner surface of the protective gauze 13 and the annular upper cover 14. (facing the side of the accommodating cavity 110) formed between the grooves, and then on the basis of effectively supporting the annular support portion 133, it can avoid the accumulation of dust on the above-mentioned grooves and cause the blocking of the protective gauze 13, reducing the sound generation device 1. failure rate.

The third embodiment: as shown in FIG. 4 and FIG. 5 , the annular upper cover 14 may include a first cover body 141 and a second cover body 142 arranged in layers, and the first cover body 141 is compared with the second cover body 142 . Adjacent to the annular support platform 112 , the second cover body 142 is supported on the annular support platform 112 . The annular support portion 133 is sandwiched 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 . FIG. 4 shows part of the structure in FIG. 1 , and the vibration assembly 121 is not shown.

Optionally, the protective gauze 13 and the annular upper cover 14 can be formed as a whole by using the beer wrapping technology. The material of the annular upper cover 14 is hard glue, such as plastic, and the hardness is greater than that of the protective gauze 13 . For example, the protective gauze 13 is formed first, then the protective gauze 13 is put into 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 be formed. The annular support portion 133 is clamped. Of course, the connection between the protective gauze 13 and the annular upper cover 14 may also be as follows: an adhesive layer (applied glue, formed after solidification) may be provided between the inner surface of the annular support portion 133 and the first cover 141 adhesive layer), so that the annular support portion 133 and the first cover body 141 are bonded and fixed. An adhesive layer is provided between the outer surface of the annular support portion 133 and the second cover body 142 , and the annular support portion 133 and the second cover body 142 are further bonded and fixed.

After the protective gauze 13 and the annular upper cover 14 are formed into a whole, an adhesive layer can be arranged between the first cover body 141 and the annular support platform 112, and then the first cover body 141 and the annular support platform 112 can be formed. Adhesive fixation. An adhesive layer may also be provided between the outer end surface of the vibration transmission plate 122 and the bonding portion 131 , so as to further bond and fix the vibration transmission plate 122 and the bonding portion 131 .

The third embodiment described above 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 142, and The annular support portion 133 is further bent and extended between the first cover body 141 and the second cover body 142 .

By arranging the annular upper cover 14 to include the first cover 141 and the second cover 142, the first cover 141 and the second cover 142 can be integrated with the protective gauze 13 in advance, which is convenient for the speaker housing 11 in the later stage. After assembly, the clamping of the first cover body 141 and the second cover body 142 can make the fixing of the protective gauze 13 more stable.

The inventor of the present application has found through long-term research that if the opening 111 is blocked, for example, the entire speaker housing 11 is covered by silica gel, the air in the accommodating cavity 110 will also vibrate to generate sound, and specifically, the speaker assembly 10 will be made to vibrate. During operation, a large natural frequency resonance peak is formed within 20-20000 Hz, and the sound leakage is serious and may produce howling, which reduces the sound-speaking effect of the bone conduction speaker 12 .

In this embodiment, by using the protective gauze 13 with a mesh structure, the air inside and outside the accommodating cavity 110 can be circulated instead of blocking the opening 111, which can effectively reduce the resonance peak and thus effectively reduce the sound leakage phenomenon. The protective gauze 13 of the present application has a plurality of mesh holes, and the plurality of mesh holes can be distributed in part of the protective gauze 13, or can be distributed throughout the entire protective gauze 13, specifically including the fitting portion 131, the cylindrical housing Part 132 and annular support part 133, but because the mesh structure is relatively dense and fine, the mesh is not specifically shown in Figures 2-8.

Further, the inventors of the present application have found through long-term continuous experiments that the mesh number of the protective gauze 13 is 250-600 mesh, and the thickness of the protective gauze 13 is 0.01 mm-0.3 mm, which can more effectively reduce sound leakage, and can ensure The strength of the protective gauze 13. Optionally, the mesh number of the protective gauze 13 is 300-500 mesh. Optionally, the mesh number of the protective gauze 13 is 380-480 mesh. Optionally, the mesh of the protective gauze 13 is 400-430 mesh. 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.

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

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 support portion 133 . Specifically, the following embodiments can be used to improve the forming yield and structural stability of the protective gauze 13 .

The embodiment of the gauze assembly of the present application can be applied to the above-mentioned embodiment of the speaker assembly of the present application. As shown in FIG. 7 , this embodiment may include a protective gauze 13 and an auxiliary lining material 15 which are arranged in close contact with each other.

As shown in FIGS. 7 to 9 , the protective gauze 13 and the auxiliary lining material 15 can be formed by thermocompression, so that the thermocompressed protective gauze 13 includes a fitting portion 131 , a cylindrical accommodating portion 132 and an annular support The fitting portion 131 is used to block one end of the cylindrical accommodating portion 132 , and the annular support 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 . The hardness of the auxiliary lining material 15 is greater than that of the protective gauze 13, and is conformally arranged 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.

Since the hardness of the auxiliary lining material 15 is greater than the hardness of the protective gauze 13, when the protective gauze 13 and the auxiliary lining material 15 are thermoformed together, the auxiliary lining material 15 and the protective gauze 13 are deformed into corresponding shapes together. Conformal arrangement, the auxiliary lining material 15 can support the protective gauze 13 to maintain the corresponding shape. At the time of assembly, the protective mesh 13 is assembled to the speaker housing 11 .

The protective gauze 13 is formed using the above-mentioned scheme of the present embodiment, and the specific preparation methods can be as follows:

As shown in Figure 9, the first preparation method comprises the following steps:

S11: Prepare the original gauze 13A and the original lining material 15B, and attach them to each other;

S12: Press and form the original gauze 13A and the original lining material 15B that are attached to each other to obtain the protective gauze 13 and the auxiliary lining material 15 of a predetermined size;

S13: After laminating the protective gauze 13 and the auxiliary lining material 15, perform thermocompression molding, and the auxiliary lining material 15 and the protective gauze 13 are both conformal, so that the auxiliary lining material 15 can support the protective gauze 13 and keep hot pressing The heat-pressed protective gauze 13 includes a fitting portion 131, a cylindrical accommodating portion 132 and an annular support portion 133, and the fitting portion 131 is used to block one end of the cylindrical accommodating portion 132, The annular support 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;

S14: The auxiliary lining material 15 is peeled off, and the protective gauze 13 is obtained.

As shown in Figure 10, the second preparation method comprises the following steps:

S21: prepare the original gauze 13A and the original lining material 15B;

S22: The original gauze 13A and the original lining material 15B that are attached to each other are subjected to thermoforming, and the thermoforming 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 keep shape after hot pressing;

S23: stamping and forming the original gauze 13A and the original lining material 15B after the thermocompression forming, and then obtaining the protective gauze 13 and the auxiliary lining material 15 which are conformally arranged, wherein the protective gauze 13 includes the bonding part 131, The cylindrical accommodating portion 132 and the 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 faces the cylindrical accommodating portion 132. The outer side of the shaped accommodating portion 132 extends;

S24: The auxiliary lining material 15 is peeled off, and the protective gauze 13 is obtained.

In this embodiment, the auxiliary lining material 15 is used to assist the protective gauze 13 for thermoforming. Since the hardness of the auxiliary lining material 15 is greater than that of the protective gauze 13, the auxiliary lining material 15 can support the protective gauze after re-heating and pressing. 13 maintains the shape after being hot-pressed, 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 the subsequent assembly into the corresponding speaker housing 11 is convenient. The gauze 13 can effectively maintain its shape after hot pressing, can adapt to the structure and shape of the bone conduction speaker 12, can effectively fit the outer end surface of the vibration transmission plate 122, and protect the stable mesh structure of the gauze 13. It can make the air inside and outside the accommodating cavity 110 circulate, thereby reducing the sound generated by the air in the accommodating cavity 110 due to vibration, and attenuating the sound generated by the air vibration other than the mechanical vibration of the vibration transmission plate 122, thereby reducing the sound leakage phenomenon. , the protective gauze 13 reduces the sound leakage of the speaker assembly 10 relative to the structure that closes the accommodating cavity 110 . That is, the gauze assembly of the present embodiment can improve the structural stability of the protective gauze 13 , and help to improve the hearing aid effect of the sound generating device 1 .

As shown in FIG. 11 and FIG. 12 , the vibration assembly 121 may include a magnet group 1211 , a magnetic conductive cover 1212 , a coil 1213 , a vibration piece 1214 , an outer support 1215 and an inner support 1216 . The magnet group 1211 has a magnetization direction so as to form a relatively stable magnetic field. The magnet group 1211 may be a single magnet or a combination of multiple magnets (for example, the magnet group 1211 shown in FIG. 11 has three stacked magnets). The magnetic conductive cover 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 conductive cover 1212, etc., and generates an ampere force under the excitation of an electrical signal (eg, an audio signal), thereby driving the vibrating piece 1214 to generate mechanical vibration. The outer bracket 1215 and the inner bracket 1216 cooperate with each other to support the above-mentioned structural members.

The magnetically conductive cover 1212 may include a cover side 12121 and a cover bottom 12122 arranged in a cylindrical shape. The cover bottom 12122 is connected to one end of the cover side 12121 to form a cylindrical groove 12123 . The magnet group 1211 is arranged in the cylinder groove 12123, and can be fixedly connected to the magnetic conductive cover 1212 by one or a combination of magnetic adsorption, adhesive bonding, snap connection, screw connection, etc., or a combination thereof. For example, the magnet group 1211 includes a plurality of stacked magnets, and the vibration assembly 121 may further include a fixing member 1217 , and the fixing member 1217 is used to fix the multiple magnets of the magnet group 1211 . Furthermore, the magnet group 1217 is fixed on the bottom 12122 of the cover body by magnetic adsorption, adhesive bonding, or the like. As an example, the fixing member 1217 may include a bolt 12171 and a nut 12172 . 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 approximately to the bottom 12122 of the cover body. Together. . In this way, since the nut 12172 is embedded in the bottom 12122 of the cover body, the size of the vibration assembly 121 in the axial direction of the cylinder groove 12123 is compressed, which is beneficial to control the overall size of the bone conduction speaker 12 . Of course, if the above overall size allows, the nut 12172 can also be arranged on the side of the bottom 12122 of the cover away from the cylinder groove 12123, and the relative fixation between the magnet group 1211 and the magnetic guide cover 1212 can also be achieved.

Of course, the fixing member 1217 can also fixedly connect the magnet set 1211 and the magnetic guide cover 1212 together. In this case, a colloid can also be provided between the magnet set 1211 and the magnetic guide cover 1212 at the same time (not shown in FIG. 11 and FIG. 12 ). shown), so that the gap between the two can be filled, and the relative fixation of the two is more stable, thereby avoiding the relative movement of the magnet group 1211 and the magnetic guide cover 1212 under mechanical vibration to generate noise.

When the magnet group 1211 and the magnetic guide cover 1212 are relatively fixed, a gap (not marked in FIG. 12 ) is formed between the two in the radial direction of the cylinder groove 12123 , and the gap is mainly used to accommodate the coil after the vibration assembly 121 is assembled. 1213. Therefore, in the radial direction of the cylinder slot 12123, the size of the gap between the magnet group 1211 and the magnetic guide cover 1212 is as uniform as possible, so as to increase the uniformity of the distribution of the above-mentioned magnetic field, thereby increasing the generation of the coil 1213 under the action of the magnetic field. The smoothness of the ampere force.

The coil 1213 is fixed to the inner bracket 1216 and is sleeved on the outer circumference of the magnet group 1211 . Wherein, after the vibration assembly 121 is assembled, the coil 1213 can extend into the gap formed by the magnet group 1211 and the magnetic conductive cover 1212 in the radial direction of the cylinder slot 12123, so that the coil 1213 is located in the magnet group 1211 and the magnetic conductive cover. In the magnetic field formed by 1212, etc., the ampere force is generated 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 cylinder slot 12123, the distance between the coil 1213 and the magnet group 1211 or the magnetic conductive cover 1212 is as far as possible. equal. In other words, in the process of pre-processing and post-assembly of the vibration assembly 121, the coaxiality of the magnet group 1211, the magnetic conductive cover 1212, the coil 1213 and other structural components should be ensured as much as possible.

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 on one end of the inner bracket 1216 and surrounds the cover slot 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 slot 12161, and the coil 1213 is sleeved on the magnet The periphery of group 1211. In this way, the size of the vibration assembly 121 in the axial direction of the cylinder groove 12123 can be compressed under the condition of satisfying the sound production requirement of the vibration assembly 121 , which is beneficial to control the overall size of the bone conduction speaker 12 .

Further, the vibration piece 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 cylinder groove 12123 , so as to facilitate the assembly of the vibration assembly 121 .

As an example, the outer bracket 1215 is provided in a cylindrical shape, one end of the outer bracket 1215 is fixed to the other end of the side part 12121 of the cover body away from the bottom part 12122 of the cover body, the other end of the outer bracket 1215 away from the magnetic conductive cover 1212 and the inner bracket 1216 away from The other end of the magnet group 1211 is connected by the vibrating piece 1214 .

In the related art, the outer bracket 1215 and the magnetic conductive cover 1212 are generally fixedly connected by one or a combination of adhesive bonding, snap connection, screw connection, etc., which easily leads to assembly errors between the outer bracket 1215 and the magnetic conductive cover 1212. , that is, the coaxiality between the two is difficult to guarantee. At this time, since the inner bracket 1216 is connected to the outer bracket 1215 via the vibrating piece 1214, an assembly error occurs between the inner bracket 1216 and the magnetic conductive cover 1212 due to the assembly error between the outer bracket 1215 and the magnetic conductive cover 1212, resulting in the coil 1213 and the magnetic conductive cover 1212. The coaxiality between the magnet set 1211 and the magnetic guide cover 1212 is reduced, which further reduces the smoothness of the ampere force generated by the coil 1213 under the action of the magnetic field, that is, the smoothness of the mechanical vibration generated by the coil 1213 driving the vibrating piece 1214 is deteriorated , thereby affecting the sound quality of the vibration component 121 .

The difference from the related art is that in the present application, the outer bracket 1215 is fixed to the other end of the side part 12121 of the cover body away from the bottom part 12122 of the cover body by injection molding, that is, the outer bracket 1215 and the magnetic conductive cover 1212 can be injection-molded with metal inserts. One-piece molded part. This arrangement can effectively reduce the assembly error between the outer bracket 1215 and the magnetic guide cover 1212 , ensure the coaxiality of the magnet group 1211 , the magnetic guide cover 1212 , the coil 1213 and other structural components, thereby improving the sound quality of the vibration component 121 .

Further, the other end of the outer bracket 1215 facing away from the magnetic conductive cover 1212 is protruded and provided with a first protruding column 12151 . Correspondingly, the vibrating piece 1214 defines a first through hole 12141 corresponding to the first protruding post 12151 . The first protruding post 12151 can be movably penetrated through the first through hole 12141 . The number of the first protrusions 12151 and the first through holes 12141 may be plural. The other end of the inner bracket 1216 can be movably embedded with the vibrating piece 121 , so as to fit the first boss 12151 and the first through hole 12141 to limit the outer bracket 1215 and the inner bracket 1216 along the radial direction of the cylinder groove 12123 relative movement. There are many situations in which the other end of the inner bracket 1216 and the vibrating piece 121 are movably inlaid, and some corresponding examples are provided below.

In an optional case, the other end of the inner bracket 1216 facing away from the magnet group 1211 may be provided with a second protrusion 12162 protruding. The vibrating plate 1214 may be provided with a second through hole 12142 , and the second protruding post 12162 can be movably penetrated through the second through hole 12142 . The first protrusion 12151 is matched with the first through hole 12141 and the second protrusion 12162 is matched with the second penetration hole 12142, so that the relative movement of the outer bracket 1215 and the inner bracket 1216 in the radial direction of the cylinder groove 12123 can be restricted, while the inner support The bracket 1215 and the vibrating piece 1214 move relative to the outer bracket 1216 in the axial direction of the cylinder groove 12123, so as to transmit the mechanical vibration generated by the vibration assembly 121 out. Referring to FIG. 13, in another optional case, the vibrating piece 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 Consistently perforated 12141. The other end of the inner bracket 1215 away from the magnet group 1211 may be provided with a through groove (not shown) corresponding to the rib, and the rib can be accommodated in the through slot, thereby limiting the movement of the outer bracket 1215 and the inner bracket 1216 along the cylinder groove 12123. The relative movement in the radial direction allows the inner bracket 1215 and the vibrating piece 1214 to move relative to the outer bracket 1216 in the axial direction of the cylinder groove 12123 .

Of course, the above two optional situations can also be combined. Referring to FIG. 13 , the vibrating piece 1214 may include an annular middle portion 12143 , an annular edge portion 12144 , and one or more ribs 12145 supporting and connected between 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 protruding post 12162 corresponds to the position of the second pipe through hole 12142 (not limited to the case shown in FIG. 11). The annular edge portion 12144 defines a first through hole 12141 , and the position of the first protruding post 12151 corresponds to the position of the first through hole 12141 .

2 to 6, the vibration transmission plate 122 is connected to the vibration component 121 and exposed through the opening 111, so as to transmit the above-mentioned mechanical vibration to the auditory nerve of the user through the head of the user, thereby allowing the user to listen to to the sound. As an example, the vibration transmission plate 122 is disposed on 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 transmission plate 122 to vibrate. Further, the bone conduction speaker 12 may further include an elastic shock absorbing sheet 123 . Specifically, the vibration assembly 121 may further include an elastic damping sheet 123 . The outer edge of the elastic damping sheet 123 is fixedly connected to the speaker housing 11 . With reference to the relevant descriptions of the protective gauze 13 in FIGS. 2 to 6 , the outer edge of the elastic shock absorbing sheet 123 may be specifically between the speaker housing 11 and the protective gauze 13 , that is, the outer edge of the elastic shock absorbing sheet 123 It can be fixed on the speaker housing 11 , and the protective gauze 13 is then fixed on the elastic shock-absorbing sheet 123 . For the first embodiment mentioned above, the elastic damping sheet 123 can be clamped between the annular platform 112 and the annular support portion 133 . Specifically, the inner surface of the annular support portion 133 may be glued with the elastic shock-absorbing sheet 123 , and the elastic shock-absorbing sheet 123 may be glued with the annular bearing platform 112 . For the second embodiment mentioned above, the elastic damping 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 may be glued with the elastic shock-absorbing sheet 123 , and the elastic shock-absorbing sheet 123 may be glued with the annular bearing platform 112 . For the third embodiment mentioned above, the elastic shock-absorbing sheet 123 can be clamped between the second cover 142 and the annular support 112 . Specifically, the elastic shock-absorbing sheet 123 may be fixed to the second cover 142 and the annular support platform 112 by gluing, respectively.

Further, the elastic damping sheet 123 is disposed 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 cylinder groove 12123, thereby increasing the vibration transmission The smoothness of the vibration of the plate 122 .

As an example, the second protruding column 12162 may include a first column section 12163 and a second column section 12164 that are integrally connected. Wherein, the first column section 12163 is closer to one end of the inner bracket 1216 than the second column section 12164, and on a section perpendicular to the axial direction of the cylindrical groove 12123, the cross-sectional area of the second column section 12164 is smaller than that of the first column section 12164. The cross-sectional area of the column segment 12163. In this way, the first column section 12163 is inserted through 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 .

As shown in FIG. 14 , the ear hook assembly 20 is formed with an accommodation space 21 for accommodating the battery assembly 50 or the control circuit assembly 60 . The ear hook assembly 20 is further formed with a communication hole 22, and the communication hole 22 communicates with the accommodating space 21 and the outside world. Further, the sound pickup assembly 40 is disposed in the accommodating space 21 and is disposed adjacent to the communication hole 22 , so that the sound pickup assembly 40 can collect sound through the communication hole 22 . Based on the above detailed description, the number of ear hook assemblies 20 is two, and the number of sound pickup assemblies 40 may also be correspondingly two. At this time, the two pickup assemblies 40 are in one-to-one correspondence with the two accommodating spaces 21, that is, each pickup assembly 40 is correspondingly disposed in one accommodating space 21 and is disposed adjacent to the communication hole 22, so that the two pickup assemblies Each of the sound components 40 can collect sound through the corresponding communication holes 22 .

As an example, the earhook assembly 20 may include a connection part 23 and an earhook shell 24 to which the connection part 23 is connected. One end of the connecting member 23 is connected to the ear-hook housing 24 , and the other end of the connecting member 23 is connected to the speaker assembly 10 . Further, each earhook housing 24 is formed with an accommodating space 21 and a communication hole 22 connecting the accommodating space 21 and the outside world. Based on the above-mentioned related descriptions, the speaker assembly 10 may cause the outside air to vibrate along with it during the process of sound production, that is, “sound leakage” occurs. For this reason, the communication hole 22 is opened on the side of the earhook housing 24 away from the speaker assembly 10, so as to avoid the “sound leakage” caused by the pickup assembly 40 picking up the speaker assembly 10 as much as possible, thereby reducing the impact of the speaker assembly 10 on the pickup assembly. 40 distractions. Moreover, the pickup assembly 40 is disposed on the side of the accommodating space 21 away from the speaker assembly 10, which can also reduce the mechanical vibration generated by the speaker assembly 10 from being transmitted to the pickup assembly 40, thereby reducing the “howling” generated by the pickup assembly 40. Or a murmur occurs. Of course, in other embodiments, the communication hole 22 may also be opened on the side of the earhook shell 24 facing the speaker assembly 10, or on the side of the earhook shell 24 facing the user's head when the earhook shell 24 is worn, or It is opened on the side of the ear hook housing 24 that is away from the user's head when it is worn.

As shown in FIG. 15 , the connecting member 23 may include a first elastic coating layer 231 , a second elastic coating layer 232 and an elastic metal wire 233 , and a guide wire 234 may be passed through the connecting member 23 . One end of the elastic wire 233 is connected to the earhook housing 24 (specifically, the first earhook housing 241 ), and the other end of the elastic wire 233 is used to connect to the speaker assembly 10 . 15 and 1 , one end of the wire 234 is electrically connected to the battery assembly 50 or the control circuit assembly 60 disposed in the earhook assembly 20, and the other end of the wire 234 is electrically connected to the speaker assembly 10 corresponding to the earhook assembly 20. sexual connection. The first elastic coating layer 231 and the second elastic coating layer 232 may be formed by two-color injection molding, and wrap the elastic metal wires 233 and the wires 234 . At this time, the elastic metal wire 233 is bent and has a certain rigidity/strength, so as to form the basic shape of the ear-hook assembly 20 , thereby facilitating the user to wear the sound-emitting device 1 . The first elastic covering layer 231 and the second elastic covering layer 232 have certain softness and appearance quality, so as to improve the wearing comfort and appearance of the sound producing device 1 . Further, the jointed seam of the first elastic coating layer 231 and the second elastic coating layer 232 divides the surface of the connecting member 23 into an inner side surface and an outer side surface arranged opposite to each other. The exposed surface of the first elastic coating layer 231 is used as the inner side surface of the connecting member 23 , and the exposed surface of the second elastic coating layer 232 is used as the outer side surface of the connecting member 23 . It should be noted that: when the sound-emitting device 1 is in the wearing state, most of the inner side of the connecting member 23 is in contact with the user's ear and its nearby head, and most of the outer side of the connecting member 23 is not in contact with the user's ear. contact with the head and its adjacent head.

In the related art, an auxiliary metal wire is generally used when manufacturing the connecting member 23 . 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, in the related art, an elastic coating is generally formed on the surfaces of the auxiliary metal wire and the elastic metal wire 233 by means of injection molding, and then the auxiliary metal wire is pulled out, and the conducting wire 234 is passed through the elastic coating (also called the elastic coating). That is, where the auxiliary wire was originally located) to obtain the connecting part 23 . However, in the above injection molding process, since the auxiliary wire and the elastic wire 233 have a certain length and radius of curvature, the two (especially the middle area) may deviate from their original positions under the impact of the injection material. As a result, the wall thickness of the elastic coating is uneven, which affects the molding quality of the connecting component 23 . Especially when the designed wall thickness of the elastic coating is relatively thin, during the long-term use of the sound-emitting device 1, the connecting part 23 may even have a bad phenomenon of "breaking skin", which seriously affects the user's experience.

The difference from the related art is that in this application, not only the elastic coating of the related art is divided into two parts, that is, the first elastic coating 231 and the second elastic coating 232, they can be injection-molded in two times; A through groove 235 is formed on one side of one of the elastic covering layers (eg, the first elastic covering layer 231 ). The through groove 235 extends along the extending direction of the first elastic coating layer 231 and is used for placing the elastic metal wire 233 and the auxiliary metal wire (which can be replaced with a wire 234 later). Further, the second elastic coating layer 232 is injection-molded on one side of the first elastic coating layer 231 (that is, the side where the through groove 235 is located), and covers the elastic wire 233 and the auxiliary wire, so that the After the first elastic coating layer 231 and the second elastic coating layer 232 are assembled and fixed, the auxiliary wire is drawn out to form a lead channel (not marked in FIG. 15 ) that is arranged in parallel with the elastic metal wire 233 and communicated with the accommodating space 21 . For threading the wire 234 .

In short, the present application can obtain the first elastic coating 231 with a through groove 235 through the first injection molding, and then place the elastic wire 233 and the auxiliary wire in the through groove 235, and then pass the second The second elastic coating layer 232 is formed on the side where the through groove 235 of the first elastic coating layer 231 is located by means of sub-injection molding to wrap the elastic metal wire 233 and the auxiliary metal wire, and finally the auxiliary metal wire is pulled out to form a lead channel, and the The wire 234 is passed through the lead channel (that is, where the auxiliary wire was originally located) to obtain the connection part 23 . Obviously, since the through groove 235 has a certain depth, the first elastic coating layer 231 can partially wrap the elastic metal wire 233 and the auxiliary metal wire, so as to limit the position of the elastic metal wire 233 and the auxiliary metal wire. It can withstand the impact of the injection molding material, which is beneficial to improve the technical problem that the elastic wire 233 and the auxiliary wire deviate from the original position. Preferably, the depth of the through groove 235 may be equal to the radius of the larger diameter of the elastic wire 233 and the auxiliary wire. In some embodiments, the number of the through grooves 235 may be two, and the two through grooves 235 are arranged side by side and are used to place the elastic wire 233 and the auxiliary wire respectively, so that the lead channel (that is, the position where the wire 234 is located is located) ) 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 lead wire 234 provided later) do not interfere with each other. In other embodiments, the number of the through grooves 235 is one, and the elastic wire 233 and the auxiliary wire are accommodated in the through groove 235 together, so that the elastic wire 233 can be exposed to the lead channel, which can simplify the connection part 23 Structure.

In this embodiment, one of the first elastic coating layer 231 and the second elastic coating layer 232 can be formed first, and then the through groove 235 can be formed on the first formed one, and then the other can be formed on the first formed one. one. The structure shown in FIG. 15 is only an exemplary description of this embodiment, and is not limited to the only mode of this embodiment. For example, the second elastic covering layer 232 shown in FIG. 15 may be formed first, and the second elastic covering layer 232 is formed with the through grooves 235 , and then the first elastic covering layer 235 may be formed. In other words, the second elastic coating layer 232 shown in FIG. 15 is equivalent to the first elastic coating layer, and the first elastic coating layer 231 shown in FIG. 15 is the second elastic coating layer.

Further, the earhook shell 24 is fixed to one end of the elastic wire 233 by injection molding. The second elastic covering layer 232 further covers at least part of the outer surface of the earhook housing 24 , and the first elastic covering layer 231 is blocked between the earhook housing 24 and the speaker assembly 10 . As an example, the earhook case 24 may include a first earhook case 241 and a second earhook case 242 , which are connected and cooperated to form the accommodating space 21 . The first earhook shell 241 is fixedly connected to one end of the connecting member 23 (specifically, the elastic wire 233 ) by injection molding, and the second earhook shell 242 is fixedly connected to the first earhook shell 241 . At this time, the second elastic covering layer 232 covers the outer surface of the first earhook shell 241 , and the first elastic covering layer 231 stops between the second earhook shell 242 and the speaker assembly 10 .

Based on the above detailed description, the molding process of the earhook assembly 10 may be: 1) respectively forming the speaker assembly 10 and the first earhook shell 241 at both ends of the elastic wire 233; 2) by the first injection molding Obtain the first elastic coating layer 231 with the through grooves 235; 3) Assemble the first elastic coating layer 231 in step 2) with the semi-finished product and the auxiliary wire in step 1); 4) By means of the second injection molding A second elastic coating layer 232 is formed on the side where the through groove 235 of the first elastic coating layer 231 is located, so as to wrap the elastic metal wire 233 and the auxiliary metal wire, and cover the outer surface of the first earhook shell 241; 5) Put the In step 4), the auxiliary metal wire of the semi-finished product is drawn out to form a lead channel, and then a wire 234 is passed through the lead channel; 6) the second ear is hooked by one or a combination of gluing, clipping, screw connection, etc. The casing 242 is fixed with the first ear hook casing 241 in step 5).

As shown in FIG. 16 , an accommodating groove 25 for accommodating the pickup assembly 40 is also formed in the accommodating space 21 . As an example, the second ear-hook housing 242 may include a bottom wall 2421 and a side wall 2422 ringed on the bottom wall 2421 . The first ear hook housing 241 is covered with the side wall 2422 and disposed opposite to the bottom wall 2421 to form the accommodating space 21 . At this time, the communication hole 22 may be opened in the side wall 2422 . Specifically, as shown in FIG. 15 , the communication hole 22 may be opened at the C position on the second ear hook housing 242 . Based on the above related descriptions, the communication hole 22 is opened on the side of the side wall 2422 away from the connecting member 23 , so as to reduce the interference of the speaker assembly 10 to the sound pickup assembly 40 as much as possible. Further, a flange 2423 is protruded from the side of the bottom wall 2421 facing the first ear hook housing 241 , and the flange 2423 can not only enclose the accommodating groove 25 , but also limit and fix the sound pickup assembly 40 . In some other embodiments, the communication hole 22 can also be opened at other positions, such as the O position on the first earhook shell 241 shown in FIG. 15 , for example, the second earhook shell 242 shown in FIG. 15 . B, D, E positions, etc.

The inventor of the present application found in long-term research that if the sound pickup assembly 40 is directly communicated with the outside world through the communication hole 22, the sound path between the pickup assembly 40 and the outside world will be short. When the sound generating device 1 is in a complex environment (for example, the air flow is relatively strong), the sound pickup assembly 40 picks up more noise, and even causes the phenomenon of "wind noise". To this end, as shown in FIGS. 16 and 17 , a channel member 26 is arranged between the pickup assembly 40 and the communication hole 22 in the present application to extend the sound path of the pickup assembly 40 , thereby improving the sound pickup of the pickup assembly 40 Effect.

As an example, the channel member 26 is disposed in the accommodating space 21 , and is formed with a sound inlet hole 261 , a channel 262 and a sound outlet hole 263 . The sound inlet hole 261 and the sound outlet hole 263 are arranged at intervals and communicate with the channel 262 respectively. 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 sound pickup assembly 40 . Further, the sound inlet hole 261 is in butt communication with the communication hole 22, and the sound outlet hole 263 is arranged adjacent to the sound pickup assembly 40, so that the sound can be transmitted to the communication hole 22, the sound inlet hole 261, the channel 262 and the sound outlet hole 263 in turn. Pickup assembly 40 . At this time, the channel member 26 can be covered on the flange 2423 , that is, the channel member 26 covers the accommodating groove 25 and is used to hold the pickup assembly 40 in the accommodating groove 25 , and the sound inlet hole 261 faces the side wall 2422 It is in butt communication with the communication hole 22 , and the sound outlet hole 263 is in butt communication with the sound pickup assembly 40 . In this way, the channel member 26 not only prolongs the sound path of the pickup assembly 40, but also realizes the fixation of the pickup assembly 40, that is, the channel member 26 can be "dual-purpose".

Further, the communication hole 22 can be arranged in a slit shape, and the sound inlet hole 261 can be arranged in a corresponding slit shape, so as to increase the contact area between the sound path of the pickup assembly 40 and the outside world, thereby improving the sound pickup effect of the pickup assembly 40 . Based on the above related descriptions, if the contact area between the sound path of the pickup assembly 40 and the outside world is too large, on the one hand, the phenomenon of "wind noise" may be caused, and on the other hand, the waterproof and dustproof performance of the ear hook assembly 20 will be greatly reduced. To this end, in the present application, a windproof grille 27 is provided 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 earhook shell 24, and further separates the communication hole 22 from the sound inlet hole 261, so as to improve the windproof and noise reduction of the pickup assembly 40, and improve the Waterproof and dustproof performance of the ear hook assembly 20 . Wherein, the windproof net cover 27 may include a stacked iron mesh 271 and a gauze 272 , and the gauze 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 that of the gauze mesh 272, and the mesh size of the gauze mesh 272 is greater than the structural strength of the iron mesh 271. The combination of the two enables the windscreen 27 to take into account its own structural strength. , the sound pickup requirements of the pickup assembly 40 and the waterproof and dustproof requirements of the ear hook assembly 20 .

As shown in FIG. 17 , the channel member 26 may include a channel top wall 264 , a channel bottom wall 265 and a channel side wall 266 surrounding the channel 262 . The channel top wall 264 and the channel bottom wall 265 are disposed 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 hole 261 is opened on the side wall 266 of the channel, and the sound outlet hole 263 penetrates through the bottom wall 265 of the channel. At this time, the channel bottom wall 265 can also be used to hold the sound 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 accommodate the flat structure of the earhook housing 24 . Wherein, the height of the channel 262 in the direction from the channel top wall 264 to the channel bottom wall 265 may 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 may be 0.65 mm.

Further, the pickup assembly 40 may include a 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 bottom wall 265 of the channel, and the sound pickup element 41 is at least partially exposed in the groove 421 . In this way, when the channel member 26 presses the pickup assembly 40 in the accommodating groove 25 , the protective sleeve 42 abuts against the flange 2423 and fits tightly with the flange 2423 , and the groove 421 and the sound outlet hole 263 are in butt communication. At this time, the protective cover 42 can be a silicone cover, so that during the above assembly process, the protective cover 42 can be elastically deformed, so as to increase the fixing effect of the flange 2423 on the pickup assembly 40, and to increase the pickup assembly 40 and the channel member 26. The airtightness of the sound path between them is improved, thereby improving the sound pickup effect of the sound pickup assembly 40 . In addition, the protective cover 42 and the sound pickup element 41 may be tightly fitted, and the sound pickup portion (specifically, the diaphragm) of the sound pickup element 41 may be exposed in the groove 421, so that after the sound is transmitted to the groove 421, It is not easy to leak from between the protective cover 42 and the sound pickup element 41 to the rear side of the sound pickup element 41 , so that the sound pickup effect of the sound pickup element 41 can be better maintained.

Based on the above detailed description, the number of the ear hook assemblies 20 may be two. At this time, the number of the pickup components 40 corresponds to two, and the number of the channel members 26 corresponds to two. Specifically, a sound pickup assembly 40 and a channel member 26 are respectively disposed in the accommodating space 21 of each ear hook assembly 20 , so as to improve the sound pickup effect of each sound pickup assembly 40 . Further, the number of speaker assemblies 10 also corresponds to two, and each ear hook assembly 20 is connected to one speaker assembly 10 respectively. In this way, when the user wears the sound-generating device 1 , the two speaker assemblies 10 can be respectively located on both sides of the user's head to form a stereo sound, thereby improving the acoustic performance of the sound-generating device 1 .

The inventors of the present application have found in long-term research that: in the related art, most of the two speaker assemblies 10 are electrically connected to the same main board (for example, the main circuit board 61 mentioned later), and are connected through a set of volume control buttons (for example, The volume keys 62) mentioned later adjust the two speaker assemblies 10. At this time, the volume of the two speaker assemblies 10 is synchronously increased or synchronously decreased under the adjustment of the volume control buttons. In this way, although for users with normal hearing, the adjustment control of the speaker assembly 10 can be simplified, and the structure of the whole machine can also be simplified; but for users with normal hearing, it may also cause the sound to be heard "on one side". Big and small”, which in turn affects the user’s experience. To this end, in the present application, a set of volume buttons 62 are respectively provided on the two ear hook assemblies 20 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 adjust the two speaker assemblies 10 adaptively according to actual usage requirements.

As shown in FIG. 18 , 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 accommodating space 21 of one of the earhook shells 24 , and the main circuit board 61 is accommodated in the accommodating space 21 of the other earhook shell 24 , so as to balance the sound generation device 1 . Weight distribution. Further, two mutually independent audio processing chips (not shown in FIG. 19 ) are integrated on the main circuit board 61 to independently control the audio gains of the two speaker assemblies 10 respectively. The audio processing chip is, for example, an audio processing DSP chip.

As an example, as shown in FIG. 16 , each ear hook housing 24 (specifically, the second housing 242 ) is formed with a volume button hole 28 that communicates with the accommodating space 21 . Wherein, each group of volume buttons 62 corresponds to the volume button hole 28 of one ear hook housing 24, and is exposed through the volume button hole 28, so that the user can control the corresponding audio processing on the main circuit board 61 by pressing the volume button 62 chip, and then adjust the audio gain of the corresponding speaker assembly 10 .

Further, the control circuit assembly 60 may also include a secondary circuit board 63 , which is disposed in the accommodating space 21 of the ear-hook housing 24 for accommodating the battery assembly 50 , that is, the secondary circuit board 63 and the battery assembly 50 are disposed in the same ear Inside the accommodating space 21 of the hanging housing 24 . At this time, the secondary circuit board 63 can cover the corresponding volume button hole 28 and abut against the volume button 62 so as to withstand the pressing force exerted by the user on the volume button 62 . Moreover, the secondary circuit board 63 can be coupled with the main circuit board 61 so that the main circuit board 61 can process the pressing operation of the volume button 62 coupled with the secondary circuit board 63 .

Based on the above detailed description, for the sound producing device 1, one end of the rear hanging assembly 30 may be provided with an ear hanging assembly 20 and a corresponding speaker assembly 10, a sound pickup assembly 40 and its channel member 26, and a battery assembly. 50. A sub-circuit board 63 and a set of volume buttons 62, the other end can be provided with an ear-hook assembly 20 and a corresponding speaker assembly 10, a pickup assembly 40 and its channel member 26, a main circuit board 61 and a Group volume buttons 62 . Wherein, the above-mentioned electrical devices disposed at both ends of the rear hanging assembly 30 can be electrically connected through wires built in the rear hanging assembly 30 to realize the transmission of control commands, electric energy, and the like.

Further, since the volume of the main circuit board 61 is generally smaller than that of the battery assembly 50 , a function button 64 can also be provided on the side where the main circuit board 61 is located. Among them, the function button 64 can replace the corresponding volume button 62 or 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-emitting device 1 .

As an example, as shown in FIG. 19 , the control circuit assembly 60 may further include function keys 64 and a waterproof backing plate 65 . Among them, the main circuit board 61 is provided with a function switch 66 . A sliding hole 29 is provided on the earhook shell 24 (specifically, the first earhook shell 241 ) that accommodates the main circuit board 61 . The sliding hole 29 communicates with the accommodating space 21 . Inside the hole 29, the function switch 66 can be toggled. Further, the waterproof lining plate 65 is arranged in the accommodating space 21 of the earhook housing 24 accommodating the main circuit board 61, and is fixedly connected to the earhook housing 24 accommodating the main circuit board 61, so that the main circuit A waterproof barrier is formed between the plate 61 and the corresponding ear hook housing 24 . The waterproof lining plate 65 is provided with a lining plate hole 651 , and the lining plate 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 is slidably inserted through the sliding hole 29 and the backing plate hole 651 , so that the function button 64 can be toggled.

As shown in FIG. 20 and FIG. 21 , the function button 64 may include a sliding part 641 and a connecting part 642 which are integrally connected. The connecting portion 642 is disposed on one side of the sliding portion 641 and extends in a direction away from the sliding portion 641 . The sliding portion 641 can be located in the sliding hole 29 and is used for the user to perform sliding operations. For example, the other side of the sliding portion 641 away from the connecting portion 642 may be exposed through the sliding hole 29 . Further, the connecting portion 642 may include two connecting plates 643 disposed opposite to the sliding portion 641 , and the two connecting plates 643 are respectively protruded from one side away from the sliding portion 641 and are provided with buckles 644 extending in the direction away from each other, so as to The connecting portion 642 can be clamped to the side of the waterproof lining plate 65 away from the sliding portion 641 . At this time, a switch accommodating area 645 is also defined on the side of one of the connecting plates 643 away from the sliding portion 641 . The switch accommodating area 645 is used for accommodating the function switch 66 , so that the function button 64 can toggle the function switch 66 . In this way, on the one hand, the function button 64 can be buckled with the function switch 66, so that the user can toggle the function switch 66 through the function button 64; , so as to prevent the function button 66 from falling off the earhook shell 24 and improve the waterproof and dustproof performance of the earhook shell 24 at the function button 66 .

As an example, a protrusion 652 surrounding the liner hole 651 is protruded from the side of the waterproof liner 65 toward the sliding portion 641 , that is, the protrusion 652 may be provided in a circle along the circumference of the liner hole 651 . This arrangement is such that when the function button 64 is buckled with the ear hook housing 24 and the waterproof backing plate 65, the protrusion 652 abuts one side of the sliding portion 641, the connecting portion 642 passes through the sliding hole 29 and the backing plate hole 651, and It can move within the sliding hole 29 and the backing plate hole 651 for toggling the function switch 66 . At this time, by reasonably designing the structure of the function button 64, the waterproof lining plate 65 and their matching relationship with the ear hook housing 24, during the movement of the connecting portion 642 in the lining plate hole 651, the protrusion 652 can Always keep the side abutting against the sliding portion 641 to ensure the waterproof and dustproof performance of the ear hook housing 24 at the function button 66 .

Of course, the above structure of the function keys 64 is only an exemplary description, and the function keys 64 can also be in the form of sliding, scrolling, and touching. No matter what form of the function keys 64, the above-mentioned waterproof structure can be used, that is, through the waterproof structure. The corresponding structure of the backing plate 65 realizes the waterproofing of the function keys 64, which will not be repeated here.

It should be noted that the function buttons 64 , the waterproof lining plate 65 and the casing (specifically may include the first ear hook casing 241 and the second ear hook casing 242 ) can cooperate to form the button waterproof assembly 100 .

Referring to FIG. 22, FIG. 22 is a schematic diagram of the relationship between the howling threshold and its position of the sound pickup component in the sound generating device provided by the present application. It should be noted that: the abscissa in FIG. 22 may represent the relative position of the pickup assembly on the sound generating device, and the ordinate may indicate the howling threshold of the pickup assembly (the unit is dB).

Based on the above related descriptions, the sound pickup component 40 may be mainly used to pick up the user's voice, the ambient sound of the environment where the user is located, and the like. For the hearing impaired, the sound pickup effect of the sound pickup assembly 40 will affect the clarity and stability of the sound received by the hearing impaired person through the sound generating device 1 . Theoretically speaking, the sound pickup assembly 40 can be arranged at any position on the sound-generating device 1 , but the inventor of the present application has found in long-term research that the closer the sound pickup assembly 40 is to the speaker assembly 10 , the easier it is to be affected by the loudspeaker assembly 10 . Influence, the easier it is to cause "howling" due to the acoustic coupling of the two. Therefore, in conjunction with FIG. 1 and FIG. 15 , the present application has conducted several tests on the relationship between the howling threshold of the sound pickup assembly 40 and its relative position on the sound generating device 1 , and the corresponding test results are shown in FIG. 22 . Wherein, the larger the howling threshold, the lower the probability of the "howling" phenomenon occurring in the sound pickup assembly 40, and the smaller the influence of the speaker assembly 10 is.

As an example, as shown in FIG. 15 , the sound pickup assembly 40 may be provided on the ear hanging assembly 20 ; as shown in FIG. 1 , the sound pickup assembly 40 may also be provided on the rear hanging assembly 30 . For the earhook assembly 20, referring to FIG. 14, since the earhook shell 24 is farther away from the speaker assembly 10 than the connecting member 23, the sound pickup assembly 40 can correspond to the first earhook shell 241, the second Ear hook housing 242 . 15 and FIG. 1 , the relative position O may correspond to the first earhook shell 241 , and the relative positions B, C, D, and E may correspond to the second earhook shell 242 . Specifically, when the sound-emitting device 1 is in the wearing state, the relative position O is located on the outer side of the earhook assembly 20 away from the user's head, the relative positions B and E are located above the earhook assembly 20, and the relative position E is compared with the phase position B is further away from the speaker assembly 10 , the relative position D is located below the earhook assembly 20 , and the relative position C is located behind the earhook assembly 20 away from the speaker assembly 10 . Further, for the rear hanging assembly 30 , in conjunction with FIG. 1 , the relative positions F, G, H, and I are in turn away from the speaker assembly 10 . Wherein, the relative position I may correspond to the middle position of the rear hanging assembly 30 .

As shown in FIG. 22 , the howling threshold value of the relative position O is used as a reference, that is, the howling threshold value of the relative position O is defined as 0. Wherein, the howling thresholds of relative positions B, C, D, E, F, G, H, and I are all greater than 0, which indicates that the sound pickup assembly 40 is arranged at these positions to improve the above-mentioned "howling" phenomenon. Further, the howling thresholds of the relative positions F, G, H, and I are significantly higher than those of the relative positions B, C, D, and E, which means that the sound pickup assembly 40 is arranged on the rear hanging assembly 30, which is more conducive to improvement. The above-mentioned "howling" phenomenon. It is worth noting that: for the earhook assembly 20, the howling thresholds of the relative positions C and E are also significantly higher than those of the relative positions B and D, which means that the sound pickup assembly 40 is set on the earhook assembly 20. The position away from the loudspeaker assembly 10 is more favorable for improving the above-mentioned "howling" phenomenon. For the relative position E, structural interference may occur between the ear-hook assembly 20 and the rear-hook assembly 30 , so it is preferable to set the pickup assembly 40 at the position C on the ear-hook assembly 20 .

The above descriptions are only the embodiments of the present application, and are not intended to limit the scope of the patent of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied to other related technologies Fields are similarly included within the scope of patent protection of this application.

Claims (10)

1. A speaker assembly for a sound generating device, comprising:

the loudspeaker comprises a loudspeaker shell, a loudspeaker shell and a loudspeaker shell, wherein an accommodating cavity with an opening is formed in the loudspeaker shell;

the bone conduction loudspeaker comprises a vibration component and a vibration transmission plate, the vibration component is contained in the containing cavity, and the vibration transmission plate is connected with the vibration component and exposed through the opening;

the protection gauze, the protection gauze includes laminating portion, tube-shape holding portion and cyclic annular supporting part, wherein the biography shakes the board set up in the tube-shape holding portion, laminating portion be used for the shutoff one end of tube-shape holding portion and with the outer terminal surface laminating setting of biography vibration board, cyclic annular supporting part connect in the other end of tube-shape holding portion, and to the outside extension of tube-shape holding portion, cyclic annular supporting part support in speaker housing's open end is last.

2. The speaker assembly of claim 1, wherein:

the inner wall of the loudspeaker shell is provided with an annular bearing platform, and the annular supporting part is supported on the annular bearing platform.

3. The speaker assembly of claim 2, wherein:

the loudspeaker assembly comprises an annular upper cover, and the annular upper cover is used for pressing and holding the annular supporting part on the annular bearing platform.

4. The speaker assembly of claim 3, wherein:

the annular supporting part is clamped between the annular upper cover and the annular bearing platform, wherein the outer surface of the annular supporting part is attached to the annular upper cover, and the inner surface of the annular supporting part is attached to the annular bearing platform.

5. The speaker assembly of claim 3, wherein:

the annular supporting part comprises an annular sub part and a bent sub part, the annular sub part is connected with the cylindrical accommodating part and extends towards the outer side of the cylindrical accommodating part, the bent sub part is connected with the edge of the annular sub part extending towards the outer side of the cylindrical accommodating part and extends towards the direction far away from the edge of the annular sub part, the annular sub part covers the annular upper cover, the bent part extends from the annular sub part to a position between the annular upper cover and the annular bearing platform, the inner surface of the annular supporting part is close to the annular upper cover, and the outer surface of the annular supporting part is close to the annular bearing platform.

6. The speaker assembly of claim 3, wherein:

the annular upper cover comprises a first cover body and a second cover body which are arranged in a stacked mode, the first cover body is close to the annular bearing platform compared with the second cover body, and the annular supporting portion is clamped between the first cover body and the second cover body.

7. The speaker assembly of any of claims 1-6, wherein:

the mesh number of the protective gauze is 250 meshes and 600 meshes, and/or the thickness of the protective gauze is 0.01mm-0.3 mm.

8. A sound generating device, characterized by:

two loudspeaker assemblies as claimed in any one of claims 1-7;

one end of each of the two ear-hang components is correspondingly connected with one loudspeaker component;

and the rear hanging component is connected between the other ends of the two hanging lug components.

9. The sound generating apparatus of claim 8, wherein:

the sound production device comprises a plurality of pickup assemblies which are respectively arranged in two of the loudspeaker assemblies and at least two of the rear hanging assemblies, and the pickup assemblies are arranged at intervals and are independent respectively so as to independently pick up sound and amplify signals.

10. A screen assembly for a speaker assembly of a sound generating device, comprising: the protective gauze comprises a protective gauze body and an auxiliary lining material which are mutually attached, wherein the protective gauze body and the auxiliary lining material are formed through hot pressing, so that the protective gauze body after hot pressing comprises an attaching part, a cylindrical accommodating part and an annular supporting part, the attaching part is used for plugging one end of the cylindrical accommodating part, the annular supporting part is connected to the other end of the cylindrical accommodating part and extends to the outer side of the cylindrical accommodating part, and the hardness of the auxiliary lining material is greater than that of the protective gauze body and is arranged in a conformal mode with the protective gauze body, so that the protective gauze body is supported to keep the shape after hot pressing.

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