CN114845229A

CN114845229A - Sound production device

Info

Publication number: CN114845229A
Application number: CN202210434934.0A
Authority: CN
Inventors: 李朝武; 谢帅林; 付峻江
Original assignee: Shenzhen Voxtech Co Ltd
Current assignee: Shenzhen Voxtech Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2022-08-02
Also published as: CN112087700A

Abstract

The utility model mainly relates to a sound production device, sound production device includes the ear-hang subassembly, pickup subassembly and passageway spare, the ear-hang subassembly is formed with accommodation space and intercommunicating pore, intercommunicating pore intercommunication accommodation space and external world, pickup subassembly and passageway spare set up in the accommodation space, the passageway spare includes the passageway roof, passageway diapire and passageway lateral wall, passageway roof and passageway diapire set up relatively, the passageway lateral wall is connected between passageway roof and passageway diapire, in order to enclose to establish and form a passageway, the passageway lateral wall is equipped with the sound hole of advancing with the passageway intercommunication, the passageway diapire is equipped with the play sound hole with the passageway intercommunication, advance sound hole and intercommunicating pore butt joint intercommunication, it sets up to go out the neighbouring pickup subassembly of sound hole, so that sound can be in proper order through the intercommunicating pore, advance the sound hole, passageway and play sound hole and then transmit to pickup subassembly.

Description

Sound production device

The present application is a divisional application of the chinese patent application entitled "speaker module, sound generating device, and screen module" filed by the chinese patent office on 12.08/month 2020, application number 2020108087579.

Technical Field

The application relates to the technical field of bone conduction equipment, in particular to a sound production device.

Background

The existing hearing aid is a small-sized loudspeaker, originally inaudible sound is amplified, and residual hearing of hearing-impaired people is utilized to enable the sound to be transmitted to a brain auditory center. However, the traditional sound transmission mode of the ear canal has limited improvement on the hearing effect of the hearing-impaired person due to hearing impairment or deterioration of the hearing-impaired person.

Disclosure of Invention

The embodiment of the application provides a sound production device, sound production device includes the ear-hang subassembly, pickup subassembly and passageway spare, the ear-hang subassembly is formed with accommodation space and intercommunicating pore, intercommunicating pore intercommunication accommodation space and external world, pickup subassembly and passageway spare set up in the accommodation space, the passageway spare includes the passageway roof, passageway diapire and passageway lateral wall, passageway roof and passageway diapire set up relatively, the passageway lateral wall is connected between passageway roof and passageway diapire, in order to enclose to establish and form a passageway, the passageway lateral wall is equipped with the sound inlet hole with the passageway intercommunication, the passageway diapire is equipped with the play sound hole with the passageway intercommunication, sound inlet hole and intercommunicating pore butt joint intercommunication, the adjacent subassembly setting of sound outlet hole pickup, so that sound can be in proper order through the intercommunicating pore, sound inlet hole, passageway and play sound hole and then transmit to pickup subassembly.

Optionally, the shortest distance from the sound inlet to the sound outlet via the channel is greater than or equal to 4 mm.

Alternatively, the communication hole is arranged in a slit shape, and the sound inlet hole is arranged correspondingly to the slit shape.

Optionally, the channel top wall and the channel bottom wall are spaced apart in parallel, and the height of the channel in the direction from the channel top wall to the channel bottom wall is 0.45-0.75 mm.

Optionally, the ear-hang assembly includes a connection part and an ear-hang housing connected to the connection part, the ear-hang housing forms an accommodation space and a communication hole, and an accommodation groove for accommodating the pickup assembly is further formed in the accommodation space, and the accommodation groove is covered by the channel part for pressing and holding the pickup assembly in the accommodation groove.

Optionally, the ear-hang shell includes a first ear-hang shell and a second ear-hang shell, the first ear-hang shell is fixedly connected with the connecting part, the second ear-hang shell includes a bottom wall and a side wall connected to the bottom wall in an annular manner, the first ear-hang shell covers the side wall and is arranged opposite to the bottom wall, so as to form an accommodating space in a connection and matching manner with the second ear-hang shell, a flange surrounding the accommodating groove is arranged in the bottom wall in a protruding manner towards one side of the first ear-hang shell, the communication hole is formed in the side wall, the channel part covers the flange so as to press and hold the pickup assembly in the accommodating groove, and the sound inlet hole is communicated towards the side wall and in an abutting manner with the communication hole.

Alternatively, the communication hole is opened at a side of the side wall away from the connection member.

Optionally, the pickup assembly includes pickup element and protective sheath, and the periphery of pickup element is located to the protective sheath cover, and the protective sheath is seted up towards the recess of passageway diapire, and pickup element part at least exposes in the recess, and protective sheath butt flange just with flange tight fit, recess and play sound hole butt joint intercommunication.

Optionally, the sound generating device includes a wind screen abutting between the duct member and the ear-hang housing, thereby spacing the communication hole and the sound inlet hole for wind prevention and noise reduction.

Optionally, the wind screen enclosure comprises a stack of iron mesh and gauze, the gauze being closer to the channel member than the iron mesh.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a sound generating device provided in the present application;

FIG. 2 is a schematic illustration of a disassembled structure of an embodiment of a speaker assembly provided herein;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic view of another cross-sectional configuration taken along line A-A of FIG. 1;

FIG. 5 is a schematic illustration of the disassembled structure of the protective screen and the ring-shaped upper cover of FIG. 4;

FIG. 6 is a schematic view of a further cross-sectional configuration taken along line A-A of FIG. 1;

FIG. 7 is a schematic disassembled view of one embodiment of a screen assembly provided herein;

FIG. 8 is a cross-sectional structural view of a conformable state of one embodiment of a screen assembly provided herein;

FIG. 9 is a schematic illustration of a process for making a screen assembly provided herein;

FIG. 10 is a schematic view of another process for making a screen assembly provided herein;

FIG. 11 is a schematic illustration of a disassembled structure of one embodiment of the vibration assembly of FIG. 2;

FIG. 12 is a schematic cross-sectional view of the vibration assembly of FIG. 11 after assembly;

fig. 13 is another structure view of the vibrating piece of fig. 11;

FIG. 14 is a schematic view of an embodiment of the earhook assembly of FIG. 1, shown disassembled;

FIG. 15 is a schematic view of the coupling member and earhook housing of FIG. 13 in an exploded configuration;

FIG. 16 is a schematic view of an embodiment of the second earhook housing of FIG. 13;

FIG. 17 is a disassembled view of one embodiment of the channel member and pickup assembly of FIG. 13;

FIG. 18 is a circuit diagram of one embodiment of the control circuit assembly of FIG. 1;

FIG. 19 is a schematic view of another embodiment of the earhook housing of FIG. 1 in an exploded configuration;

FIG. 20 is a schematic view of the functional keys and waterproof liner of FIG. 18 in an exploded view;

FIG. 21 is a cross-sectional structural view of the earhook assembly of FIG. 18 in a toggle direction of the function key;

fig. 22 is a schematic diagram illustrating a relationship between a howling threshold value and a position of a sound pickup unit in the sound device according to the present application.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In this application, the sound generating device 1 may be a hearing aid, a listening bracelet, an earphone, a sound box, smart glasses, or other devices having an acoustic output capability. In the present embodiment, the sound generating device 1 is exemplified as a bone conduction headset.

The existing hearing aid is a small-sized loudspeaker, originally inaudible sound is amplified, and residual hearing of hearing-impaired people is utilized to enable the sound to be transmitted to a brain auditory center. However, the traditional sound transmission mode of the ear canal has limited improvement on the hearing effect of the hearing-impaired person due to hearing impairment or deterioration of the hearing-impaired person. The inventor of this application discovers through long-term research that the bone conduction technology can break through traditional duct sound transmission mode, can effectively improve the hearing effect of listening the barrier person, makes moreover to listen the barrier person and can receive more clear more stable sound.

The bone conduction earphone can convert audio frequency into mechanical vibration with different frequencies, human bones are used as media for transmitting the mechanical vibration, and then the mechanical vibration is transmitted to auditory nerves, so that a user can receive sound without passing through the external auditory canal and the eardrum of the ear. The present application applies bone conduction technology to hearing aids, which effectively improves the drawbacks of the prior art, and please refer to the following exemplary description of 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 each of the two ear hook assemblies 20 is correspondingly connected to one of the speaker assemblies 10, that is, each of the two ear hook assemblies 20 is connected to one of the speaker assemblies 10. The rear suspension assembly 30 is connected between the other ends of the two ear assemblies 20 facing away from the respective speaker assemblies 10. Of course, the sound generating apparatus 1 may also include one or more sound pickup assemblies 40.

The speaker assembly 10 is used to convert audio into mechanical vibrations of different frequencies. When the sound emitting device 1 is worn, the speaker assembly 10 may be placed close to the head of the user adjacent to the ear, and may transmit mechanical vibrations to the human auditory system through the bones of the head. The ear hook assembly 20 is adapted to be attached to the ear of a user. Specifically, the two ear hook assemblies 20 may be respectively provided with a battery assembly 50 and a control circuit assembly 60, and the control circuit assembly 60 is used for controlling the operation of the entire sound emitting device 1, such as volume control, on/off, earphone mode selection, wireless connection or data transmission, and the like. The battery pack 50 is used to supply power to the entire sound emitting device 1. The rear hanging member 30 may be wound around the rear side of the head of the user when the sound generating apparatus 1 is worn. The rear hanging component 30 is connected between the other ends of the two ear hanging components 20, and the structure is reliable and stable, so that the sound production device 1 can be worn stably.

Taking the embodiment including a plurality of sound pickup assemblies 40 as an example, the plurality of sound pickup assemblies 40 may be respectively disposed on at least two of the speaker assemblies 20 and the rear hanging assembly 30, or the plurality of sound pickup assemblies 40 may be disposed on the rear hanging assembly 30 at intervals. The plurality of sound pickup assemblies 40 are spaced from each other and independent from each other, so that sound pickup and signal amplification can be performed independently from each other. It should be noted that: the "plurality" described in this embodiment means "at least two", for example, "two", "three", "four", and the like.

For example, one of the pickup assemblies 40 is disposed on the rear-hanging assembly 30, and may be disposed at a middle position of the rear-hanging assembly 30. For example, at least two pickup assemblies 40 are disposed on the rear suspension assembly 30, one pickup assembly 40 is disposed at a middle position of the rear suspension assembly 30, and the remaining pickup assemblies 40 are spaced apart at one side or two sides of the middle position. For another example, the present embodiment includes three sound pickup assemblies 40, wherein two sound pickup assemblies 40 are respectively and correspondingly disposed in the two ear-hook assemblies 20, and the other sound pickup assembly 40 is disposed in the rear-hook assembly 30. The pickup assembly 40 is independent, pickup and signal amplification can be independently performed, and then sounds in different directions can be independently processed, so that a user who listens to the handicapped can adapt to the sounds in different directions, and the hearing effect of the user who listens to the handicapped is improved.

In the embodiment of the present invention, 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 utilizes the form of mechanical vibration to transmit audio signals. In general, if there is a large air vibration in the speaker assembly 10, the sound transmission effect of the mechanical vibration of the bone conduction speaker 12 may be affected, the sound quality may be reduced, and the hearing effect of the hearing-impaired person may be affected. The speaker assembly 10 of the present embodiment may refer to the following description of the speaker assembly 10 of the present application, and of course, the speaker assembly 10 of the present application may also be applied to other types of bone conduction earphones, and is not limited to the sound generating device 1 described in the above embodiments.

As shown in fig. 2-6, 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 may be housed in the speaker housing 11. The protective screen 13 may be supported on the speaker housing 11 and may further serve to protect the bone conduction speaker 12.

As shown in fig. 2, the speaker housing 11 may be formed with a receiving chamber 110 having an opening 111. The speaker housing 11 has an opening 111 at one side thereof for being adjacent to the head of a user. The receiving cavity 110 is used for receiving the bone conduction speaker 12. The mechanical vibrations generated by the bone conduction speaker 12 may be transmitted to the head of the user through the opening 111.

Alternatively, the inner wall of the speaker housing 11 may be provided with an annular platform 112. The inner wall of the speaker housing 11 refers to the inner wall of the speaker housing 11 enclosing the accommodating cavity 110. An annular platform 112 may be disposed adjacent to the opening 111. The annular platform 112 may be used to support the protective screen 13. In some embodiments, the protective screen 13 may be supported on the annular platform 112 such that the protective screen 13 covers or substantially covers 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 chamber 110. The vibration transfer plate 122 is connected to the vibration member 121 and is exposed through the opening 111. In other words, the vibration transmission plate 122 is exposed out of the accommodating cavity 110 through the opening 111, the bone conduction speaker 12 is integrally formed to protrude from the inside of the speaker housing 11 to the outside of the speaker housing 11, and the vibration transmission plate 122 protrudes out of the opening 111 and is thus exposed. The vibration component 121 may convert the audio signal into mechanical vibration when receiving the audio signal. The vibration transmission plate 122 connected to the vibration assembly 121 may transmit the vibration of the bone conduction speaker 12 to the human auditory nerve through the head of the user.

As shown in fig. 2, the protective screen 13 is provided at the opening end of the speaker housing 11 and is bonded to the vibration surface of the vibration plate 122. As an example, the protective screen 13 may include a fitting portion 131, a cylindrical receiving portion 132, and a ring-shaped supporting portion 133. The vibration transfer plate 122 may be disposed within the cylindrical receiving portion 132. The fitting portion 131 is provided to close one end of the cylindrical accommodating portion 132 and to be fitted to the outer end surface of the vibration transmission plate 122. Specifically, one end of the cylindrical receiving portion 132 may refer to one end of the cylindrical receiving portion 132 away from the receiving chamber 110, and the other end of the cylindrical receiving portion 132 may refer to one end of the cylindrical receiving portion 132 close to the receiving chamber 110. The outer end face of the vibration transfer plate 122 refers to an end face facing away from the accommodation chamber 110 or an end face facing away from the vibration assembly 121. In a specific assembling process, the protective screen 13 may cover the opening 111, the vibration transmission plate 122 exposed from the opening 111 extends into the cylindrical accommodating portion 132, and the outer end surface of the vibration transmission plate 122 is attached to the attaching portion 131. The annular support portion 133 may be connected to the other end of the cylindrical receiving portion 132 and extend outward of the cylindrical receiving portion 132. The ring-shaped support portion 133 is for supporting on the open end of the speaker housing 11. Specifically, the annular support portion 133 may be supported on the annular platform 112.

The bone conduction technology is applied to the hearing aid equipment, the problem that the hearing effect of a hearing-impaired person is limited by the traditional sound transmission mode of the traditional hearing aid can be solved, the vibration transmission plate 122 connected with the vibration component 121 is exposed through the opening 111, the vibration transmission plate 122 is attached by the protective gauze 13, the vibration transmission plate 122 can be closer to the head of the user, the vibration of the exposed vibration transmission plate 122 can be more quickly and powerfully transmitted to the bone of the user, the mechanical vibration of the embodiment is more complete and is not easy to lose the frequency band, the hearing effect of the hearing-impaired person can be effectively improved, and the protective gauze 13 can enable the air inside and outside the accommodating cavity 110 to mutually circulate in the mechanical vibration process due to the net structure, so that the air pressure difference inside and outside the accommodating cavity 110 is balanced, and the sound generated by the vibration of the air inside the accommodating cavity 110 is reduced, the sound is generated by attenuating the air vibration other than the mechanical vibration of the vibration plate 122, and thus the sound leakage phenomenon can be reduced. For the structure that the accommodating cavity 110 is closed, the protective gauze 13 can also reduce the influence of the air vibration in the accommodating cavity 110 on the vibration of the vibration plate 122, thereby effectively improving the tone quality and the sound effect of the sound generating device 1.

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, and the annular upper cover 14 is configured to press and hold the annular support portion 133 on the annular platform 112, so as to reduce the circumstance that the annular support portion 133 is easily torn off, and enable the protective gauze 13 to be stably supported on the annular platform 112.

The following embodiments are provided for the positional relationship and the support structure between the annular upper cover 14, the annular support portion 133, and the annular platform 112:

the first embodiment: as shown in fig. 3, the annular support portion 133 may be sandwiched between the annular top cover 14 and the annular platform 112, wherein an outer surface of the annular support portion 133 is proximate to the annular top cover 14 and an inner surface of the annular support portion 133 is proximate to the annular platform 112. In the present embodiment, the inner surface of the protective screen 13 refers to a 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 a portion of the inner surface of the protective screen 13 in the annular support portion 133. Correspondingly, disposed opposite the inner surface of the protective screen 13 is the outer surface of the protective screen 13. The outer surface of the annular support portion 133 refers to a portion of the outer surface of the protective screen 13 on the annular support portion 133. Specifically, the annular upper cover 14 directly presses the outer surface of the annular support portion 133, thereby pressing the inner surface of the annular support portion 133 against the annular pedestal 112. In other words, the annular support portion 133 extends outward from the inside of the gap between the annular upper cover 14 and the annular pedestal 112. In fig. 3, a part of the structure in fig. 1 is shown, and the vibration assembly 121 is not shown.

Alternatively, an adhesive layer may be disposed between the inner surface of the annular support portion 133 and the annular platform 112, so as to directly or indirectly adhere and fix the annular support portion 133 and the annular platform 112. An adhesive layer may be provided between the outer end surface of vibration plate 122 and bonded portion 131 to bond and fix vibration plate 122 and bonded portion 131. In the actual assembly process, the protective screen 13 may be directly or indirectly bonded to the vibration plate 122 and the speaker housing 11 by glue, so as to form the above-mentioned adhesive layer, and then the annular upper cover 14 is covered on the annular support portion 133. Of course, an adhesive layer may 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 adhesively fixed.

The protection gauze 13 is fixed through the first implementation mode, the structure is simple, the assembly is convenient, and the support of the protection gauze 13 is stable.

The second embodiment: as shown in fig. 6, the inner surface of the annular supporting portion 133 may cover the annular upper cover 14, and the annular supporting portion 133 is further bent and extended between the annular upper cover 14 and the annular platform 112, and the outer surface of the annular supporting portion 133 is close to the annular platform 112. Specifically, the annular support portion 133 covers the annular upper cover 14 on the inner surface thereof, and further extends from the outer side to the inner side of the gap between the annular upper cover 14 and the annular support portion 133. In fig. 6, a part of the structure in fig. 1 is shown, and the vibration assembly 121 is not shown.

Specifically, the ring-shaped support 133 may include a ring-shaped sub-portion 1331 and a bent sub-portion 1332. The ring-shaped portion 1331 connects the cylindrical accommodating portion 132 and extends outward of the cylindrical accommodating portion 132. The bending portion 1332 connects the edge of the ring portion 1331 extending to the outside of the cylindrical accommodating portion 132, that is, the bending portion 1332 connects the edge of the ring portion 1331 extending to the outside of the cylindrical accommodating portion 132 and extends away from the edge of the ring portion 1331. Alternatively, the number of the bent portions 1332 may be multiple, and the bent portions 1332 extend outward from the edge of the ring portion 1331, and the bent portions 1332 may be disposed at intervals on the edge of the ring portion 1331. Alternatively, the bending portion 1332 may be a continuous ring shape extending outward from the edge of the ring-shaped sub-portion 1331.

The ring-shaped sub-portion 1331 may cover the ring-shaped top cover 14, and the bending sub-portion 1332 extends from the ring-shaped sub-portion 1331 to between the ring-shaped top cover 14 and the ring-shaped platform 112. The inner surface of the annular support portion 133 abuts the annular upper cover 14. Specifically, the inner surface of the ring-shaped sub-portion 1331 and the inner surface of the bent sub-portion 1332 are proximate to the ring-shaped upper cover 14. The outer surface of the annular support 133 abuts the annular platform 112. Specifically, the outer surface of the bender 1332 is proximate to the annular platform 112.

Alternatively, an adhesive layer may be disposed between the outer surface of the annular support portion 133 and the annular platform 112, so as to bond and fix the annular support portion 133 and the annular platform 112. An adhesive layer may be provided between the outer end surface of the vibration transmission plate 122 and the bonded portion 131, so as to bond and fix the vibration transmission plate 122 and the bonded portion 131. In the actual assembly process, the protective gauze 13 may be covered by the annular upper cover 14, and then bonded to the vibration plate 122 and the speaker housing 11 through glue, so as to form the above-mentioned adhesive layer. Of course, an adhesive layer may be disposed 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 adhered and fixed.

Compared with the first embodiment, the protection screen 13 is fixed by the second embodiment, and the inner surface of the annular support portion 133 is wrapped, so that a gap formed between the protection screen 13 and the inner side surface (the side surface facing the accommodating cavity 110) of the annular upper cover 14 can be avoided, and further, on the basis of effectively supporting the annular support portion 133, dust can be prevented from being accumulated on the gap to cause blockage of the protection screen 13, and the failure rate of the sound generating device 1 can be reduced.

Third embodiment: as shown in fig. 4 and 5, the annular top cover 14 may include a first cover 141 and a second cover 142 stacked together, the first cover 141 is closer to the annular platform 112 than the second cover 142, and the second cover 142 is supported on the annular platform 112. The annular support portion 133 is sandwiched between the first cover 141 and the second cover 142. Specifically, the inner surface of the annular support portion 133 is proximate to the first cover 141, and the outer surface of the annular support portion 133 is proximate to the second cover 142. In fig. 4, a part of the structure in fig. 1 is shown, and the vibration assembly 121 is not shown.

Alternatively, the protective screen 13 may be formed integrally with the ring-shaped upper cover 14 by using a bell-beer technique. The material of the ring-shaped upper cover 14 is a hard glue, such as plastic, and the hardness is greater than that of the protective gauze 13. For example, the protective screen 13 is formed first, the protective screen 13 is placed in a mold corresponding to the ring-shaped upper cover 14, and the ring-shaped upper cover 14 is formed, so that the ring-shaped support portion 133 is sandwiched between the first cover 141 and the second cover 142. Of course, the connection between the protective screen 13 and the ring-shaped upper cover 14 may also be: an adhesive layer (formed by applying glue and solidifying) may be disposed between the inner surface of the annular support portion 133 and the first cover 141, so that the annular support portion 133 and the first cover 141 are adhered and fixed. An adhesive layer is provided between the outer surface of the annular support portion 133 and the second cover 142, and the annular support portion 133 and the second cover 142 are further bonded and fixed.

After the protective screen 13 and the annular upper cover 14 are integrated, an adhesive layer may be provided between the first cover 141 and the annular platform 112, and the first cover 141 and the annular platform 112 are bonded and fixed. An adhesive layer may be provided between the outer end surface of the vibration transmission plate 122 and the bonded portion 131, so as to bond and fix the vibration transmission plate 122 and the bonded portion 131.

The third embodiment is similar to the first embodiment, and the third embodiment may also be changed to be similar to the second embodiment, that is, the inner surface of the annular supporting portion 133 covers the second cover 142, and the annular supporting portion 133 is further bent and extended between the first cover 141 and the second cover 142.

Through setting up cyclic annular upper cover 14 and including first lid 141 and second lid 142, first lid 141 and second lid 142 can make an organic whole in advance with protection gauze 13, and the later stage of being convenient for assembles with speaker housing 11, and the centre gripping of first lid 141 and second lid 142 can make protection gauze 13's fixed can be comparatively stable.

Through long-term research, the inventor of the present application finds that if the opening 111 is sealed, for example, by using silicon gel to include the entire speaker housing 11, the air in the accommodating cavity 110 may also vibrate and generate sound, and in particular, the speaker assembly 10 may cause a large natural frequency resonance peak within 20-20000Hz during operation, so that sound leakage is serious and howling may be generated, and the speaker effect of the bone conduction speaker 12 is reduced.

In the embodiment, by using the protective gauze 13 with a mesh structure, air inside and outside the accommodating cavity 110 can circulate instead of plugging the opening 111, so that a resonance peak can be effectively reduced, and a sound leakage phenomenon can be effectively reduced. The protective gauze 13 of the present application has a plurality of meshes, which may be distributed in partial positions of the protective gauze 13 or may be distributed throughout the protective gauze 13, and specifically includes the fitting portion 131, the cylindrical receiving portion 132, and the annular supporting portion 133, but the meshes are not specifically shown in fig. 2 to 8 because the mesh structure is dense and fine.

Further, the inventor of the present application finds, through long-term and continuous experiments, that the mesh number of the protective gauze 13 is 250-600 meshes, and the thickness of the protective gauze 13 is 0.01mm-0.3mm, so that the sound leakage can be reduced more effectively, and the strength of the protective gauze 13 can be ensured. Optionally, the mesh number of the protective gauze 13 is 300-500 meshes. Optionally, the mesh number of the protective gauze 13 is 380 and 480. Optionally, the mesh number of the protective gauze 13 is 400-430 meshes. Optionally, the thickness of the protective screen 13 is 0.05mm to 0.25 mm. Optionally, the thickness of the protective screen 13 is 0.1mm to 0.2 mm. Optionally, the thickness of the protective screen 13 is 0.125mm to 0.15 mm.

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

The protective screen 13 of the present embodiment may be formed by thermoplastic molding, and the protective screen 13 may be formed into a structure including the fitting portion 131, the cylindrical receiving portion 132, and the annular supporting portion 133. In particular, the following embodiments can be used to improve the yield and structural stability of the formation of the protective screen 13.

The gauze component embodiment of the present application can be applied to the speaker component embodiment of the present application, and as shown in fig. 7, the present embodiment may include a protective gauze 13 and an auxiliary backing material 15, which are attached to each other.

As shown in fig. 7 to 9, the protective screen 13 and the auxiliary backing material 15 may be formed by hot press molding, so that the hot-pressed protective screen 13 includes a fitting portion 131, a cylindrical accommodating portion 132, and a ring-shaped supporting portion 133, the fitting portion 131 is used to close one end of the cylindrical accommodating portion 132, and the ring-shaped supporting portion 133 is connected to the other end of the cylindrical accommodating portion 132 and extends to the outside of the cylindrical accommodating portion 132. The hardness of the auxiliary lining material 15 is greater than that of the protective gauze 13, and the auxiliary lining material and the protective gauze 13 are arranged in a conformal mode, so that the protective gauze 13 is supported to keep the shape after hot pressing. The material of the auxiliary lining material 15 can be plastic.

Because the hardness of the auxiliary lining material 15 is greater than that of the protective screen 13, when the protective screen 13 and the auxiliary lining material 15 are hot-pressed together, the auxiliary lining material 15 and the protective screen 13 deform together to a corresponding shape, and the auxiliary lining material 15 and the protective screen 13 are arranged in a conformal manner, so that the auxiliary lining material 15 can support the protective screen 13 to keep a corresponding shape. When assembled, the protective screen 13 is assembled to the speaker housing 11.

The protective gauze 13 is formed by the above scheme of this embodiment, and the specific preparation method may include the following two methods:

as shown in fig. 9, the first preparation method includes the steps of:

s11: preparing a raw gauze 13A and a raw backing material 15B, and bonding the two materials to each other;

s12: punching and forming the original gauze 13A and the original lining material 15B which are attached to each other to obtain a protective gauze 13 and an auxiliary lining material 15 with preset sizes;

s13: after the protective screen 13 and the auxiliary lining material 15 are attached, hot-press forming is carried out, the auxiliary lining material 15 and the protective screen 13 are conformal, so that the auxiliary lining material 15 can support the protective screen 13 to keep the shape after hot pressing, wherein the protective screen 13 after hot pressing comprises an attaching part 131, a cylindrical accommodating part 132 and an annular supporting part 133, the attaching part 131 is used for plugging one end of the cylindrical accommodating part 132, and the annular supporting part 133 is connected to the other end of the cylindrical accommodating part 132 and extends towards the outer side of the cylindrical accommodating part 132;

s14: the auxiliary backing material 15 is peeled off, and the protective screen 13 is obtained.

As shown in fig. 10, the second preparation method includes the steps of:

s21: preparing a raw gauze 13A and a raw lining material 15B;

s22: carrying out hot press molding on the original gauze 13A and the original lining material 15B which are attached to each other, wherein the hot press molded original gauze 13A and the original lining material 15B are conformal, so that the original lining material 15B can support the original gauze 13A and keep the shape after hot press;

s23: the original gauze 13A and the original lining material 15B after the hot press forming are subjected to punch forming, and then the protective gauze 13 and the auxiliary lining material 15 which are arranged in a conformal mode are obtained, wherein the protective gauze 13 comprises an attaching part 131, a cylindrical accommodating part 132 and an annular supporting part 133, the attaching part 131 is used for blocking one end of the cylindrical accommodating part 132, and the annular supporting part 133 is connected to the other end of the cylindrical accommodating part 132 and extends towards the outer side of the cylindrical accommodating part 132;

s24: the auxiliary backing material 15 is peeled off, and the protective screen 13 is obtained.

In the embodiment, the auxiliary lining material 15 is used for assisting the protection screen 13 to perform hot press molding, because the hardness of the auxiliary lining material 15 is greater than that of the protection screen 13, and after hot pressing, the auxiliary lining material 15 can support the protection screen 13 to keep the hot pressed shape, so that the protection screen 13 with stable shape and structure can be obtained, the yield and the structural stability of the protection screen 13 are improved, and the protection screen 13 can be conveniently assembled into a corresponding loudspeaker shell 11, and because the protection screen 13 can effectively keep the hot pressed shape, the protection screen can be adapted to the structure and the shape of the bone conduction loudspeaker 12, the outer end surface of the vibration transmission plate 122 can be effectively attached, the stable net structure of the protection screen 13 can enable air inside and outside the accommodating cavity 110 to circulate, so that the sound generated by the air inside the accommodating cavity 110 due to vibration is reduced, and the sound generated by air vibration except for mechanical vibration of the vibration transmission plate 122 is attenuated, further, the sound leakage phenomenon can be reduced, and the sound leakage of the speaker assembly 10 can be reduced by the protective gauze 13 compared with the structure for closing the accommodating cavity 110. That is, the gauze component of this embodiment can improve the structural stability of protection gauze 13, helps promoting sound generating mechanism 1's hearing aid effect.

As shown in fig. 11 and 12, the vibration assembly 121 may include a magnet 1211, a magnetic shield 1212, a coil 1213, a vibration plate 1214, an outer bracket 1215, and an inner bracket 1216. The magnet 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 a plurality of magnets (for example, the magnet group 1211 shown in fig. 11 has three magnets stacked one on another). The magnetic shield 1212 is mainly used to adjust the magnetic field generated by the magnet 1211, so as to increase the utilization rate of the magnetic field. The coil 1213 is in a magnetic field formed by the magnet 1211 and the magnetic conductive shield 1212, and generates an ampere force under the excitation of an electrical signal (e.g., an audio signal), so as to drive the vibrating plate 1214 to generate mechanical vibration. Outer support 1215 and inner support 1216 cooperate to support the structural members described above.

The flux cap 1212 may include a cap side portion 12121 and a cap bottom portion 12122, which are disposed in a cylindrical shape, and the cap bottom portion 12122 is connected to one end of the cap side portion 12121 to form a cylindrical groove 12123. The magnet 1211 is disposed in the slot 12123, and can be fixed to the magnetic conductive shield 1212 by one or a combination of magnetic attraction, adhesive bonding, clipping, and screwing. For example: the magnet assembly 1211 includes a plurality of magnets stacked one on another, and the vibration assembly 121 may further include a fixing member 1217, the fixing member 1217 being for fixing the plurality of magnets of the magnet assembly 1211. The magnet assembly 1217 is then attached to the cover bottom 12122 by, for example, magnetic attraction, adhesive bonding, or the like. Illustratively, the mount 1217 may include a bolt 12171 and a nut 12172. Wherein nut 12172 is embedded in cover bottom 12122, bolt 12171 can pass through magnet 1211 in sequence and out or substantially through cover bottom 12122, and nut 12172 and bolt 12171 are threadably engaged to combine the magnets of magnet 1211 together. . With this arrangement, since the nut 12172 is embedded in the cover bottom 12122, the dimension of the vibration member 121 in the axial direction of the cylinder slot 12123 is compressed, which is advantageous for controlling the overall dimension of the bone conduction speaker 12. Of course, the nut 12172 can be disposed on the side of the cover bottom 12122 away from the barrel slot 12123, as the overall dimensions allow, and the relative fixation between the magnet assembly 1211 and the magnetic shield 1212 can be achieved.

Of course, the fixing member 1217 may also fixedly connect the magnet 1211 and the magnetic conductive shield 1212 together, in this case, a colloid (not shown in fig. 11 and 12) may be disposed between the magnet 1211 and the magnetic conductive shield 1212 at the same time, so that a gap between the magnet 1211 and the magnetic conductive shield 1212 can be filled, and the magnet 1211 and the magnetic conductive shield 1212 are relatively fixed more stably, thereby preventing noise caused by relative movement of the magnet 1211 and the magnetic conductive shield 1212 under mechanical vibration.

When the magnet assembly 1211 and the magnetic shield 1212 are fixed relative to each other, a gap (not shown in fig. 12) is formed therebetween in the radial direction of the cylindrical groove 12123, and the gap is mainly used for accommodating the coil 1213 after the assembly of the vibration assembly 121 is completed. Therefore, the size of the gap between the magnet assembly 1211 and the magnetically permeable shield 1212 is as uniform as possible in the radial direction of the cylindrical slot 12123 to increase the uniformity of the distribution of the magnetic field, and thus the smoothness of the ampere force generated by the coil 1213 under the action of the magnetic field.

Coil 1213 is fixed to inner support 1216 and is disposed around the periphery of magnet 1211. After the assembly of the vibration assembly 121 is completed, the coil 1213 may specifically extend into a gap formed between the magnet group 1211 and the magnetic conductive shield 1212 in the radial direction of the barrel slot 12123, so that the coil 1213 is in a magnetic field formed by the magnet group 1211, the magnetic conductive shield 1212, and the like, and an ampere force is generated under the excitation action of the electrical signal. It should be noted that: in order to increase the smoothness of the ampere force generated by the coil 1213 under the action of the magnetic field, the distance between the coil 1213 and the magnet group 1211 or the magnetic conductive shield 1212 is made equal everywhere as much as possible in the radial direction of the barrel slot 12123. In other words, during the previous machining and the later assembling of the vibration assembly 121, the coaxiality of the magnet assembly 1211, the magnetic conductive shield 1212, the coil 1213 and other structural members should be ensured as much as possible.

Illustratively, an end of inner bracket 1216 (which may be specifically the end facing magnet set 1211) is formed with a cover slot 12161. The coil 1213 is fixed to one end of the inner bracket 1216 and surrounds the cover slot 12161, one end of the inner bracket 1216 covers the magnet 1211, so that the magnet 1211 can partially extend into the cover slot 12161, and the coil 1213 is sleeved on the outer circumference of the magnet 1211. With this arrangement, the size of the vibration component 121 in the axial direction of the barrel groove 12123 can be reduced to facilitate control of the overall size of the bone conduction speaker 12 while satisfying the sound emission requirement of the vibration component 121.

Further, a vibration plate 1214 connects outer holder 1215 and inner holder 1216, and serves to restrict relative movement of outer holder 1215 and inner holder 1216 in the radial direction of barrel groove 12123, so as to facilitate assembly of vibration assembly 121.

Illustratively, the outer support 1215 is disposed in a cylindrical shape, one end of the outer support 1215 is fixed to the other end of the cover side portion 12121 away from the cover bottom portion 12122, and the other end of the outer support 1215 away from the magnetic shield 1212 and the other end of the inner support 1216 away from the magnet assembly 1211 are connected by the vibrating piece 1214.

In the related art, the outer rack 1215 and the magnetic conductive shield 1212 are generally fixedly connected by one or a combination of gluing, clamping, screwing and the like, which easily causes an assembly error between the outer rack 1215 and the magnetic conductive shield 1212, that is, the coaxiality between the outer rack 1215 and the magnetic conductive shield 1212 is difficult to be ensured. At this time, since the inner bracket 1216 is connected to the outer bracket 1215 through the vibrating reed 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, which results in a decrease in coaxiality between the coil 1213 and the magnet group 1211 and the magnetic conductive cover 1212, and further results in a decrease in 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 vibrating reed 1214 driven by the coil 1213 becomes worse, thereby affecting the sound quality of the vibration module 121.

Unlike the related art: in this application, the outer rack 1215 is fixed to the other end of the cover side portion 12121 away from the cover bottom portion 12122 by injection molding, that is, the outer rack 1215 and the magnetic conductive cover 1212 may be integrally formed by metal insert injection molding. With such an arrangement, the assembly error between the outer frame 1215 and the magnetic conductive cover 1212 can be effectively reduced, and the coaxiality of the magnet set 1211, the magnetic conductive cover 1212, the coil 1213 and other structural members can be ensured, thereby improving the sound quality of the vibration component 121.

Further, the other end of the outer rack 1215 facing away from the magnetic conduction cover 1212 is convexly provided with a first convex column 12151. Accordingly, the vibrating plate 1214 is formed with a first through hole 12141 corresponding to the first protrusion 12151. The first protruding pillar 12151 is movably disposed through the first through hole 12141. The number of the first protruding pillars 12151 and the first penetrating holes 12141 may be plural. The other end of the inner bracket 1216 is movably mounted with the vibration plate 121, so as to cooperate with the first protrusion 12151 and the first through hole 12141 to limit the relative movement of the outer bracket 1215 and the inner bracket 1216 along the radial direction of the cylinder slot 12123. There are various cases where the other end of the inner bracket 1216 and the vibrating piece 121 are movably mounted, and some corresponding examples are provided below.

In an alternative case, the other end of inner bracket 1216 facing away from magnet set 1211 may be provided with a second protruding post 12162. The vibrating plate 1214 can be opened with a second through hole 12142, and the second protrusion 12162 can movably penetrate through the second through hole 12142. Relative movement of the outer bracket 1215 and the inner bracket 1216 in the radial direction of the barrel groove 12123 is restricted by the first boss 12151 fitting the first through hole 12141 and the second boss 12162 fitting the second through hole 12142, while the inner bracket 1215 and the vibration plate 1214 are allowed to move in the axial direction of the barrel groove 12123 with respect to the outer bracket 1216, so as to transmit the mechanical vibration generated by the vibration assembly 121. As shown in fig. 13, in another alternative case, the vibrating piece 1214 includes a ring-shaped edge portion 12144 and one or more ribs 12145 supported in the ring-shaped edge portion 12144, and the ring-shaped edge portion 12144 is opened with a first through hole 12141. The other end of the inner bracket 1215 facing away from the magnet set 1211 may be provided with through slots (not shown) corresponding to the ribs, and the ribs may be received in the through slots, so as to limit the relative movement of the outer bracket 1215 and the inner bracket 1216 along the radial direction of the barrel 12123, and allow the inner bracket 1215 and the vibrating plate 1214 to move relative to the outer bracket 1216 along the axial direction of the barrel 12123.

Of course, the two alternatives described above can also be combined. As can be seen in fig. 13, the vibrating piece 1214 may include an annular middle portion 12143, an annular edge portion 12144, and one or more ribs 12145 that support and connect between the annular edge portion 12144 and the annular middle portion 12143. The annular middle portion 12143 is opened with a second through hole 12142, and the position of the second boss 12162 corresponds to the position of the second tube 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 protrusion 12151 corresponds to the position of the first through hole 12141.

As described in connection with fig. 2 to 6, the vibration transmission plate 122 is connected to the vibration member 121 and exposed through the opening 111, so as to transmit the mechanical vibration to the auditory nerve of the user through the head of the user, thereby enabling the user to hear the sound. Illustratively, the vibration plate 122 is disposed at the other end of the inner bracket 1216 away from the magnet set 1211 and abuts against the vibration plate 1214, so that the inner bracket 1216 and the vibration plate 1214 can drive the vibration plate 122 to vibrate. Further, the bone conduction speaker 12 may further include an elastic shock-absorbing plate 123. Specifically, the vibration assembly 121 may further include an elastic damping sheet 123. Wherein the outer edge of the elastic damping sheet 123 is fixedly connected to the speaker housing 11. As described in connection with fig. 2 to 6 for the protection screen 13, the outer edge of the elastic shock-absorbing sheet 123 may be specifically interposed between the speaker housing 11 and the protection screen 13, that is, the outer edge of the elastic shock-absorbing sheet 123 may be fixed on the speaker housing 11, and the protection screen 13 is then fixed on the elastic shock-absorbing sheet 123. As for the aforementioned first embodiment, the elastic damping piece 123 may be sandwiched between the annular platform 112 and the annular support portion 133. Specifically, the inner surface of the annular support portion 133 may be bonded to the elastic damping piece 123, and the elastic damping piece 123 may be bonded to the annular receiving platform 112. As for the aforementioned second embodiment, the elastic damping piece 123 may be sandwiched between the annular platform 112 and the annular support portion 133. Specifically, the outer surface of the annular support portion 133 may be bonded to the elastic damping piece 123, and the elastic damping piece 123 may be bonded to the annular receiving platform 112. For the aforementioned third embodiment, the elastic damping piece 123 may be sandwiched between the second cover 142 and the annular platform 112. Specifically, the elastic damping sheet 123 may be fixed to the second cover 142 and the annular supporting platform 112 by adhesive bonding.

Further, an elastic damper 123 is provided between the vibration transmission plate 122 and the other end of the inner bracket 1216 facing away from the magnet group 1211 to be able to damp the vibration of the inner bracket 1216 in the axial direction of the barrel groove 12123, thereby increasing the smoothness of the vibration transmission plate 122.

Illustratively, the second boss 12162 may include a first pillar section 12163 and a second pillar section 12164 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 the cross-sectional area of the second column section 12164 is smaller than the cross-sectional area of the first column section 12163 in a cross-section perpendicular to the axial direction of the barrel groove 12123. In this way, the first column section 12163 is inserted into the second through hole 12142, and the second column section 12164 is inserted into the vibration plate 122, so that the inner support 1216 drives the vibration plate 122 to vibrate. Further, the elastic damping piece 123 is opened with a third through hole 1231. The elastic damping piece 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 accommodating space 21 for accommodating the battery assembly 50 or the control circuit assembly 60. Wherein, the ear-hang component 20 is further formed with a communication hole 22, and the communication hole 22 communicates the accommodating space 21 with the outside. Further, the pickup assembly 40 is disposed in the accommodating space 21 and adjacent to the communication hole 22, so that the pickup assembly 40 can pick up 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 can be correspondingly two. At this time, the two sound pickup assemblies 40 are in one-to-one correspondence with the two accommodating spaces 21, that is, each sound pickup assembly 40 is correspondingly disposed in one accommodating space 21 and is disposed adjacent to the communication hole 22, so that the two sound pickup assemblies 40 can pick up sound through the corresponding communication holes 22.

Illustratively, the earhook assembly 20 may include a connection member 23 and an earhook housing 24 connecting the connection member 23. One end of the connecting part 23 is connected with the ear-hang shell 24, and the other end of the connecting part 23 is connected with the loudspeaker assembly 10. Further, each ear hook housing 24 is formed with an accommodating space 21 and a communication hole 22 communicating the accommodating space 21 with the outside, respectively. Based on the above description, the speaker assembly 10 may bring the external air into vibration during the sound production process, i.e. the "sound leakage" occurs. For this reason, the communication hole 22 is opened on the side of the ear-hook housing 24 away from the speaker assembly 10 to prevent the sound pickup assembly 40 from picking up the "sound leakage" caused by the speaker assembly 10 as much as possible, thereby reducing the interference of the speaker assembly 10 with the sound pickup assembly 40. Moreover, the sound pickup assembly 40 is disposed at a side of the accommodating space 21 far away from the speaker assembly 10, so that the transmission of mechanical vibration generated by the speaker assembly 10 to the sound pickup assembly 40 can be reduced, and the occurrence of "whistling" or noise generated by the sound pickup assembly 40 can be reduced. Of course, in other embodiments, the communication hole 22 may be opened on a side of the ear hook housing 24 facing the speaker assembly 10, on a side of the ear hook housing 24 facing the head of the user when being worn, or on a side of the ear hook housing 24 facing away from the head of the user when being worn.

As shown in fig. 15, the connection member 23 may include a first elastic coating 231, a second elastic coating 232, and an elastic wire 233, and a wire 234 may be threaded into the connection member 23. One end of the elastic wire 233 is connected to the ear hook housing 24 (specifically, the first ear hook housing 241), and the other end of the elastic wire 233 is used for connecting to the speaker assembly 10. Referring to fig. 15 and 1, one end of the wire 234 is electrically connected to the battery unit 50 or the control circuit unit 60 disposed in the ear hook unit 20, and the other end of the wire 234 is electrically connected to the speaker unit 10 corresponding to the ear hook unit 20. The first elastic coating 231 and the second elastic coating 232 may be formed by two-shot molding and wrap the elastic wire 233 and the conductive wire 234. At this time, the elastic wire 233 is bent and has a certain rigidity/strength to form a basic form of the ear hook assembly 20, thereby facilitating the user to wear the sound generating device 1. The first elastic coating 231 and the second elastic coating 232 have certain flexibility and appearance quality to improve the wearing comfort and aesthetic appearance of the sound generating device 1. Further, the split seam of the first elastic coating 231 and the second elastic coating 232 divides the surface of the connecting member 23 into an inner side and an outer side which are opposite to each other. Wherein the exposed surface of the first elastic coating 231 serves as the inner side surface of the connection member 23, and the exposed surface of the second elastic coating 232 serves as the outer side surface of the connection member 23. It should be noted that: when the sound generating device 1 is worn, most of the inner side surface of the connecting member 23 is in contact with the ear of the user and the head in the vicinity thereof, and most of the outer side surface of the connecting member 23 is not in contact with the ear of the user and the head in the vicinity thereof.

In the related art, an auxiliary wire is generally used to form the connecting member 23. The auxiliary wire and the elastic wire 233 are arranged side by side, and 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 formed on the surfaces of the auxiliary wire and the elastic wire 233 by injection molding, and then the auxiliary wire is pulled out and the wire 234 is inserted into the elastic coating (i.e., the position where the auxiliary wire is originally located) to obtain the connecting component 23. However, in the injection molding process, since the auxiliary wire and the elastic wire 233 have a certain length and a certain radius of curvature, both (especially, the middle area thereof) may deviate from the original position under the impact of the injection molding material, and finally the wall thickness of the elastic coating is not uniform, which affects the molding quality of the connecting component 23. Especially, when the thickness of the elastic coating is thin, the connecting part 23 may even have a "skin breaking" phenomenon during long-term use of the sound generating device 1, which seriously affects the user experience.

Unlike the related art: in the present application, not only the elastic coating layer of the related art is divided into two, that is, the first elastic coating layer 231 and the second elastic coating layer 232, which may be injection molded in two times; a through-slot 235 is also formed in one side of one of the elastic coatings, such as the first elastic coating 231. Wherein, a through groove 235 is extended along the extending direction of the first elastic coating 231 and is used for placing the elastic wire 233 and the auxiliary wire (which may be replaced with the wire 234 later). Further, the second elastic coating 232 is formed on one side surface of the first elastic coating 231 (that is, the side where the through groove 235 is located) in an injection molding manner, and covers the elastic wire 233 and the auxiliary wire, so that after the first elastic coating 231 and the second elastic coating 232 are spliced and fixed, by pulling out the auxiliary wire, a lead channel (not labeled in fig. 15) is formed, which is arranged in parallel with the elastic wire 233 and is communicated with the accommodating space 21, and the lead channel is used for passing through the lead 234.

In short, the present application may obtain the first elastic coating 231 having the through groove 235 by a first injection molding, then place the elastic metal wire 233 and the auxiliary metal wire in the through groove 235, then form the second elastic coating 232 on the side of the through groove 235 of the first elastic coating 231 by a second injection molding to wrap the elastic metal wire 233 and the auxiliary metal wire, finally draw out the auxiliary metal wire to form the lead channel, and thread the wire 234 into the lead channel (i.e. the position where the auxiliary metal wire is originally located) to obtain the connecting component 23. Obviously, the through groove 235 has a certain depth, so that the first elastic coating 231 can partially wrap the elastic metal wire 233 and the auxiliary metal wire to limit the elastic metal wire and the auxiliary metal wire, and further the elastic metal wire 233 and the auxiliary metal wire can resist the impact of the injection molding incoming material, which is beneficial to improving the technical problem that the elastic metal wire 233 and the auxiliary metal wire deviate from the initial positions. 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 slots 235 may be two, and two through slots 235 are disposed side by side and are used for placing the elastic wire 233 and the auxiliary wire, respectively, so that the lead channel (i.e., the position where the lead 234 is located) and the elastic wire 233 are separated from each other, which may enable the elastic wire 233 and the auxiliary wire (or the lead 234 disposed subsequently) to be free from interference. In other embodiments, the number of the through slots 235 is one, and the elastic wire 233 and the auxiliary wire are commonly received in the through slots 235, so that the elastic wire 233 can be exposed to the lead passage, which can simplify the structure of the connection member 23.

In the present embodiment, one of the first elastic coating 231 and the second elastic coating 232 may be molded first, and the through groove 235 may be formed on the one molded first, and then the other molded first. The structure shown in fig. 15 is merely an exemplary description of the present embodiment, and is not limited to the only manner of the present embodiment. For example, the second elastic coating 232 of fig. 15 may be molded first, the second elastic coating 232 may be formed with the through grooves 235, and then the first elastic coating 235 may be molded. In other words, it is equivalent to the second elastic coating 232 shown in fig. 15 as the first elastic coating, and the first elastic coating 231 shown in fig. 15 as the second elastic coating.

Further, the earhook housing 24 is fixed to one end of the elastic wire 233 by injection molding. Wherein the second elastic coating 232 further coats at least a portion of the outer surface of the earhook housing 24, and the first elastic coating 231 is stopped between the earhook housing 24 and the speaker assembly 10. As an example, the earhook housing 24 may include a first earhook housing 241 and a second earhook housing 242, which are coupled to form the accommodating space 21. The first earhook housing 241 is fixedly connected to one end of the connecting component 23 (specifically, the elastic wire 233) by injection molding, and the second earhook housing 242 is fixedly connected to the first earhook housing 241. At this time, the second elastic coating 232 covers the outer surface of the first earhook housing 241, and the first elastic coating 231 is stopped between the second earhook housing 242 and the speaker assembly 10.

Based on the above detailed description, the molding process of the ear hook assembly 10 may be: 1) the speaker assembly 10 and the first earhook housing 241 are formed at both ends of the elastic wire 233, respectively; 2) obtaining a first elastic coating 231 with a through groove 235 by means of first injection molding; 3) assembling the first elastic coating 231 of step 2) with the semi-finished product and the auxiliary wire of step 1);

4) forming a second elastic coating 232 on one side of the first elastic coating 231 where the through groove 235 is located by a second injection molding method to wrap the elastic metal wire 233 and the auxiliary metal wire and wrap the outer surface of the first earhook housing 241; 5) drawing out the auxiliary metal wire of the semi-finished product in the step 4) to form a lead channel, and then penetrating a lead 234 into the lead channel; 6) the second ear hook shell 242 is fixed with the first ear hook shell 241 in step 5) by one or a combination of glue joint, clamping joint, screw connection and the like.

As shown in fig. 16, a receiving groove 25 for receiving the sound pickup assembly 40 is further formed in the receiving space 21. Illustratively, the second earhook housing 242 may include a bottom wall 2421 and a side wall 2422 that is circumjacent to the bottom wall 2421. The first ear-hook casing 241 covers the side wall 2422 and is disposed opposite to the bottom wall 2421 to form an 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 a position C on the second earhook housing 242. Based on the above-described related description, the communication hole 22 is opened on the side of the side wall 2422 away from the connection part 23 to reduce interference of the sound pickup assembly 40 by the speaker assembly 10 as much as possible. Further, a flange 2423 is convexly disposed on one side of the bottom wall 2421 facing the first earhook housing 241, and the flange 2423 not only can enclose the receiving groove 25, but also can limit and fix the sound pickup assembly 40. In other embodiments, the communication hole 22 can be opened at other positions, such as the O position on the first earhook housing 241 shown in fig. 15, and the B, D, E position on the second earhook housing 242 shown in fig. 15.

The inventors of the present application found in long-term studies that: if the sound pickup assembly 40 is directly communicated with the outside through the communication hole 22, a short sound path between the sound pickup assembly 40 and the outside will result. When the sound generating apparatus 1 is in a complicated environment (e.g. the air flow is severe), the sound pickup assembly 40 picks up more noise, and even causes a "wind noise" phenomenon. Therefore, as shown in fig. 16 and 17, the present application provides a channel member 26 between the sound pickup assembly 40 and the communication hole 22 to extend the sound path of the sound pickup assembly 40, thereby improving the sound pickup effect of the sound pickup assembly 40.

As an example, the passage member 26 is disposed in the accommodating space 21, and is formed with a sound inlet hole 261, a passage 262, and a sound outlet hole 263. The sound inlet 261 and the sound outlet 263 are spaced apart from each other and are connected to the passage 262. Preferably, the shortest distance from sound inlet hole 261 to sound outlet hole 263 via channel 262 is greater than or equal to 4mm in order to extend the acoustic path of 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 disposed adjacent to the sound pickup assembly 40, so that sound can be transmitted to the sound pickup assembly 40 through the communication hole 22, the sound inlet hole 261, the passage 262, and the sound outlet hole 263 in this order. At this time, the channel 26 can be covered on the flange 2423, that is, the channel 26 covers the receiving groove 25, and is used for pressing and holding the sound pickup assembly 40 in the receiving groove 25, and the sound inlet hole 261 faces the side wall 2422 and 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. So set up, channel piece 26 has both prolonged the sound path of pickup assembly 40, has realized the fixed to pickup assembly 40 again, and is that channel piece 26 can "one dual-purpose".

Further, the communication hole 22 may be formed in a slit shape, and the sound inlet hole 261 may be correspondingly formed in a slit shape, so as to increase a contact area between the sound path of the sound pickup assembly 40 and the outside, thereby improving the sound pickup effect of the sound pickup assembly 40. Based on the above description, if the sound path of the sound pickup assembly 40 has too large a contact area with the outside, on one hand, wind noise may be caused, and on the other hand, the waterproof and dustproof performance of the ear-hook assembly 20 may be greatly reduced. For this purpose, the present application provides a wind screen 27 on the sound path of the pickup assembly 40. Illustratively, the wind-proof mesh enclosure 27 abuts between the channel member 26 and the ear-hook housing 24, thereby separating the communication hole 22 and the sound inlet hole 261 for improving wind-proof and noise reduction of the sound pickup assembly 40 and improving waterproof and dustproof performance of the ear-hook assembly 20. The wind screen 27 may include an iron net 271 and a gauze 272 stacked on each other, and the gauze 272 is closer to the channel 26 than the iron net 271. It should be noted that: the structural strength of the iron net 271 is greater than that of the gauze 272, the mesh number of the gauze 272 is greater than that of the iron net 271, and the gauze 27 can give consideration to the structural strength of the gauze 27, the sound pickup requirement of the sound pickup assembly 40 and the waterproof and dustproof requirements of the ear hanging 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 that enclose the channel 262. Wherein the channel top wall 264 and the channel bottom wall 265 are oppositely disposed and the channel side wall 266 is connected between the channel top wall 264 and the channel bottom wall 265. Further, the sound inlet 261 is opened on the channel sidewall 266, and the sound outlet 263 penetrates the channel bottom wall 265. Channel bottom wall 265 may also be used to hold pickup assembly 40 in place. Illustratively, the channel top wall 264 and the channel bottom wall 265 are spaced apart in parallel such that the channel 262 is disposed in a flat configuration to accommodate the flat configuration 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, pickup assembly 40 may include a pickup element 41 and a protective sleeve 42. The protective sleeve 42 is disposed around the sound pickup element 41. Further, the protection cover 42 defines a groove 421 facing the bottom wall 265 of the passage, and the sound-picking element 41 is at least partially exposed in the groove 421. So configured, when the channel 26 presses the pickup assembly 40 into the receiving groove 25, the protection sleeve 42 abuts against the flange 2423 and tightly fits with the flange 2423, and the groove 421 and the sound outlet 263 are in butt-joint communication. At this time, the protective sleeve 42 may be a silicone sleeve, so that in the above assembling process, the protective sleeve 42 can be elastically deformed to increase the fixing effect of the flange 2423 on the sound pickup assembly 40, and increase the sealing property of the acoustic path between the sound pickup assembly 40 and the channel member 26, thereby improving the sound pickup effect of the sound pickup assembly 40. In addition, the protective sleeve 42 and the sound pickup element 41 may be tightly fitted, and a sound pickup portion (specifically, a diaphragm) of the sound pickup element 41 may be exposed in the groove 421, so that sound is not easily leaked from between the protective sleeve 42 and the sound pickup element 41 to the rear side of the sound pickup element 41 after being transmitted to the groove 421, and thus the sound pickup effect of the sound pickup element 41 may 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 sound pickup assemblies 40 corresponds to two, and the number of the duct members 26 also 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 the speaker assemblies 10 also corresponds to two, and each ear hook assembly 20 is connected with one speaker assembly 10. So configured, when the user wears the sound generating device 1, the two speaker assemblies 10 can be respectively located at two sides of the head of the user to form stereo sound, thereby improving the acoustic performance of the sound generating device 1.

The inventors of the present application found in long-term studies that: in the related art, the two speaker assemblies 10 are mostly electrically connected to the same main board (e.g., the main circuit board 61 mentioned later), and the two speaker assemblies 10 are adjusted by a set of volume control keys (e.g., the volume keys 62 mentioned later). At this time, the volumes of the two speaker assemblies 10 are synchronously increased or synchronously decreased under the adjustment of the volume control keys. With such an arrangement, although the adjustment control of the speaker assembly 10 can be simplified for a user with normal hearing, the structure of the whole device can be simplified; however, for a user with abnormal hearing, the user may hear the sound "big and small" all the time, which may affect the user experience. Therefore, in the present application, a set of volume keys 62 is respectively disposed on the two ear-hook assemblies 20 to respectively adjust the speaker assemblies 10 corresponding thereto, that is, the two speaker assemblies 10 can be respectively controlled by the two sets of volume keys 62, so that a user can respectively perform adaptive adjustment on the two speaker assemblies 10 according to actual use requirements.

As shown in fig. 18, the control circuit assembly 60 may include a main circuit board 61 and two sets of volume keys 62. The battery assembly 50 is accommodated in the accommodating space 21 of one of the ear-hook shells 24, and the main circuit board 61 is accommodated in the accommodating space 21 of the other ear-hook shell 24, so as to balance the weight distribution of the sound generating device 1. Further, two independent audio processing chips (not shown in fig. 19) are integrated on the main circuit board 61, and the audio gains of the two speaker assemblies 10 are independently controlled respectively. The audio processing chip is, for example, an audio processing DSP chip.

As shown in fig. 16, each of the ear-hook shells 24 (specifically, the second shell 242) is formed with a volume key hole 28 communicating with the accommodating space 21. Each group of volume keys 62 is correspondingly disposed in the volume key hole 28 of one of the ear-hang shells 24 and exposed through the volume key hole 28, so that a user can control the corresponding audio processing chip on the main circuit board 61 by pressing the volume keys 62, and further adjust the audio gain of the corresponding speaker assembly 10.

Further, the control circuit assembly 60 may further include a sub circuit board 63 disposed in the accommodating space 21 of the ear-hook housing 24 for accommodating the battery assembly 50, that is, the sub circuit board 63 and the battery assembly 50 are disposed in the accommodating space 21 of the same ear-hook housing 24. At this time, the sub circuit board 63 may cover the volume key hole 28 corresponding thereto and abut against the volume key 62 so as to receive the pressing force applied to the volume key 62 by the user. Also, the sub circuit board 63 may be coupled with the main circuit board 61 so that the main circuit board 61 processes a pressing operation of the volume key 62 coupled with the sub circuit board 63.

Based on the above detailed description, for the sound generating apparatus 1, one end of the rear hanging component 30 may be provided with an ear-hanging component 20 and a corresponding speaker component 10, a sound pickup component 40 and a channel member 26 thereof, a battery component 50, a sub circuit board 63 and a set of volume keys 62, and the other end may be provided with an ear-hanging component 20 and a corresponding speaker component 10, a sound pickup component 40 and a channel member 26 thereof, a main circuit board 61 and a set of volume keys 62. The electrical devices disposed at the two ends of the rear hanging assembly 30 may be electrically connected through a wire embedded in the rear hanging assembly 30, so as to transmit control commands, electric energy, and the like.

Further, since the main circuit board 61 is generally smaller in volume than the battery pack 50, a function button 64 may be further provided on the side of the main circuit board 61. The function keys 64 may replace the corresponding volume keys 62, may coexist with the volume keys 62, and may implement functions such as play/pause, AI wakeup, power on/off, and the like, so as to extend the interaction capability of the sound generating apparatus 1.

Illustratively, as shown in fig. 19, the control circuit assembly 60 may further include function keys 64 and a waterproof backing 65. The main circuit board 61 is provided with a function switch 66. The ear-hook shell 24 (specifically, the first ear-hook shell 241) accommodating the main circuit board 61 is provided with a sliding hole 29, the sliding hole 29 is communicated with the accommodating space 21, and the function key 64 is slidably disposed in the sliding hole 29 and can toggle the function switch 66. Further, the waterproof liner 65 is disposed in the accommodating space 21 of the ear hook housing 24 accommodating the main circuit board 61, and is fixedly connected to the ear hook housing 24 accommodating the main circuit board 61, so as to form a waterproof barrier between the main circuit board 61 and the corresponding ear hook housing 24. The waterproof lining plate 65 is provided with a lining plate hole 651, and the lining plate hole 651 may be provided to correspond to the sliding hole 29, for example, coaxially and in equal size. At this time, the function keys 64 are slidably inserted into the sliding holes 29 and the lining holes 651, so that the function keys 64 can be moved.

As shown in fig. 20 and 21, the function key 64 may include a sliding portion 641 and a connecting portion 642 that are integrally connected. The connecting portion 642 is disposed on one side of the sliding portion 641 and extends away from the sliding portion 641, and the sliding portion 641 can be located in the sliding hole 29 and is used for a user to perform a sliding operation. For example, the other side of the sliding portion 641 facing 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 oppositely disposed on the sliding portion 641, and one side of each of the two connecting plates 643 away from the sliding portion 641 is provided with a buckle 644 protruding in a direction away from each other, so that the connecting portion 642 can be clamped to one side of the waterproof lining board 65 away from the sliding portion 641. At this time, a switch accommodating area 645 is further formed on one side of the connection plate 643 away from the sliding portion 641. The switch receiving area 645 is configured to receive the function switch 66, such that the function button 64 can move the function switch 66. With such an arrangement, on one hand, the function key 64 can be buckled with the function switch 66, so that a user can toggle the function switch 66 through the function key 64; on the other hand, the function button 64 can also be fastened with the ear-hook shell 24 and the waterproof lining board 65 to prevent the function button 66 from falling off from the ear-hook shell 24 and improve the waterproof and dustproof performance of the ear-hook shell 24 at the function button 66.

As an example, the waterproof lining 65 is provided with a protrusion 652 protruding toward the side of the sliding portion 641, the protrusion 652 surrounding the lining hole 651, that is, the protrusion 652 may be provided in a circle around the lining hole 651. The arrangement is such that when the function key 64 is engaged with the ear-hook housing 24 and the waterproof lining 65, the protrusion 652 abuts against one side of the sliding portion 641, and the connecting portion 642 passes through the sliding hole 29 and the lining hole 651 and can move in the sliding hole 29 and the lining hole 651, so as to toggle the function switch 66. At this time, by properly designing the structures of the function keys 64, the waterproof liner 65 and the matching relationship between the function keys and the ear shell 24, the protrusion 652 can always abut against one side of the sliding portion 641 during the movement of the connecting portion 642 in the liner hole 651, so as to ensure the waterproof and dustproof performance of the ear shell 24 at the function keys 66.

Of course, the structure of the function key 64 is described as an example, the function key 64 may also adopt sliding, rolling, touching and other forms, and the waterproof structure described above may be used for any form of the function key 64, that is, the waterproof of the function key 64 is realized through the corresponding structure of the waterproof lining board 65, and details are not described herein.

It should be noted that: the function keys 64, the waterproof liner 65, and the housing (which may specifically include the first ear hook housing 241 and the second ear hook housing 242) may cooperate to form the key waterproof assembly 100.

Referring to fig. 22, fig. 22 is a schematic diagram illustrating a relationship between a howling threshold and a position of a sound pickup assembly in the sound generating apparatus according to the present application. It should be noted that: the abscissa in fig. 22 may represent the relative position of the sound pickup assembly on the sound emitting device, and the ordinate may represent the howling threshold (in dB) of the sound pickup assembly.

Based on the above description, the sound pickup assembly 40 may be mainly used for picking up the voice of the user, the environmental sound of the environment where the user is located, and the like. For the hearing-impaired person, the sound collecting effect of the sound collecting assembly 40 will affect the clarity, stability, etc. of the sound received by the hearing-impaired person through the sound generating device 1. Theoretically, the sound pickup assembly 40 may be disposed at any position on the sound generating apparatus 1, but the inventors of the present application found in long-term research that: the closer the sound pickup unit 40 is to the speaker unit 10, the more susceptible it is to the speaker unit 10, and the more susceptible it is to "howling" due to acoustic coupling between the two. Therefore, in the present application, with reference to fig. 1 and fig. 15, the relationship between the howling threshold of the sound pickup assembly 40 and the relative position thereof on the sound emitting device 1 is tested a plurality of times, and the corresponding test results are shown in fig. 22. The larger the howling threshold is, the lower the probability of occurrence of the "howling" phenomenon in the sound pickup unit 40 is, and the smaller the influence of the speaker unit 10 is.

Illustratively, as shown in fig. 15, the pickup assembly 40 may be disposed on the ear-hook assembly 20; as shown in fig. 1, the pickup assembly 40 may also be disposed on the rear hanger assembly 30. In the ear-hook assembly 20, referring to fig. 14, the ear-hook housing 24 is further away from the speaker assembly 10 than the connecting member 23, so the sound-collecting assembly 40 can correspond to the first ear-hook housing 241 and the second ear-hook housing 242. With reference to fig. 15 and fig. 1, the relative position O may correspond to the first earhook housing 241, and the relative position B, C, D, E may correspond to the second earhook housing 242. Specifically, when the sound generating apparatus 1 is in the wearing state, the relative position O is located on the outer side of the ear hook assembly 20 away from the head of the user, the relative position B, E is located above the ear hook assembly 20, the relative position E is further away from the speaker assembly 10 than the phase position B, the relative position D is located below the ear hook assembly 20, and the relative position C is located behind the ear hook assembly 20 away from the speaker assembly 10. Further, with respect to the rear suspension assembly 30, in conjunction with fig. 1, the relative position F, G, H, I is sequentially away from the speaker assembly 10. Wherein the relative position I may correspond to a middle position of the rear suspension 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 to be 0. The howling threshold values at the relative positions B, C, D, E, F, G, H, I are all greater than 0, which indicates that the sound pickup assembly 40 is disposed at these positions to improve the "howling" phenomenon. Further, the howling threshold at relative position F, G, H, I is significantly higher than the howling threshold at relative position B, C, D, E, which indicates that the placement of sound-pick-up assembly 40 on rear-hanging assembly 30 is more beneficial to improving the "howling" phenomenon described above. It is worth noting that: the howling threshold at relative position C, E is also significantly higher for ear hook assembly 20 than for relative position B, D, which means that the placement of sound pickup assembly 40 at a position on ear hook assembly 20 further away from speaker assembly 10 is more beneficial in ameliorating the "howling" phenomenon described above. For the relative position E, structural interference between the ear hook assembly 20 and the rear hook assembly 30 may occur, so that the sound pickup assembly 40 is preferably disposed at the position C on the ear hook assembly 20.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. The sound production device is characterized by comprising an ear-hook assembly, a pickup assembly and a channel piece, wherein the ear-hook assembly is provided with an accommodating space and a communication hole, the communication hole is communicated with the accommodating space and the outside, the pickup assembly and the channel piece are arranged in the accommodating space, the channel piece comprises a channel top wall, a channel bottom wall and a channel side wall, the channel top wall and the channel bottom wall are oppositely arranged, the channel side wall is connected between the channel top wall and the channel bottom wall to form a channel in an enclosing manner, the channel side wall is provided with a sound inlet hole communicated with the channel, the channel bottom wall is provided with a sound outlet hole communicated with the channel, the sound inlet hole is communicated with the communication hole in a butt joint manner, the sound outlet hole is adjacent to the pickup assembly, so that sound can sequentially pass through the communication hole, the communication hole and the channel, The sound inlet hole, the channel and the sound outlet hole are further transmitted to the pickup assembly.

2. The sound generating apparatus of claim 1, wherein the shortest distance from the sound inlet hole to the sound outlet hole through the channel is greater than or equal to 4 mm.

3. The sound generating apparatus as claimed in claim 2, wherein the communication hole is formed in a slit shape, and the sound inlet hole is formed in a slit shape.

4. The sound-generating apparatus of claim 1, wherein the channel top wall and the channel bottom wall are spaced apart in parallel, and the height of the channel in the direction from the channel top wall to the channel bottom wall is 0.45-0.75 mm.

5. The sound generating apparatus according to claim 1, wherein said ear hook assembly comprises a connecting member and an ear hook housing connected to said connecting member, said ear hook housing forms said accommodating space and said communicating hole, and further forms an accommodating groove for accommodating said sound pickup assembly in said accommodating space, and said channel member covers said accommodating groove for pressing and holding said sound pickup assembly in said accommodating groove.

6. The sound generating apparatus as claimed in claim 5, wherein the ear-hanging housing includes a first ear-hanging housing and a second ear-hanging housing, the first ear-hanging housing is fixedly connected to the connecting member, the second ear-hanging housing includes a bottom wall and a side wall annularly connected to the bottom wall, the first ear-hanging housing covers the side wall and is disposed opposite to the bottom wall, so as to form the accommodating space in a connecting and matching manner with the second ear-hanging housing, a flange surrounding the accommodating cavity is convexly disposed on one side of the bottom wall facing the first ear-hanging housing, the communication hole is disposed on the side wall, the channel member covers the flange to press the sound pickup assembly into the accommodating cavity, and the sound inlet hole faces the side wall and is in butt communication with the communication hole.

7. The sound generating apparatus according to claim 6, wherein said communication hole is opened to a side of said side wall away from said connecting member.

8. The sound generating apparatus of claim 6, wherein the sound pickup assembly comprises a sound pickup element and a protection cover, the protection cover is sleeved on the periphery of the sound pickup element, the protection cover is provided with a groove facing the bottom wall of the passage, the sound pickup element is at least partially exposed in the groove, the protection cover abuts against the flange and is tightly fitted with the flange, and the groove is in butt joint communication with the sound outlet hole.

9. The sound generating device as claimed in claim 5, wherein the sound generating device comprises a wind screen abutting between the duct member and the ear shell to space the communication hole from the sound inlet hole for wind prevention and noise reduction.

10. The sound generating apparatus as claimed in claim 9, wherein the wind screen cover comprises an iron net and a gauze arranged in a stacked manner, and the gauze is closer to the channel member than the iron net.