Earphone

Abstract

The present application discloses an earphone. The earphone comprises a speaker assembly and a wearing assembly. The speaker assembly comprises a bone conduction speaker. The bone conduction speaker comprises a device core housing, a first vibration transmission sheet, a transducer apparatus, a vibration plate and a lead. The first vibration transmission sheet comprises an inner ring fixing portion, an outer ring fixing portion and at least two elastic connecting portions. The at least two elastic connecting portions are connected between the inner ring fixing portion and the outer ring fixing portion. The inner ring fixing portion is connected to the transducer apparatus, and the outer ring fixing portion is connected to the device core housing, such that the transducer apparatus is suspended in the device core housing. The vibration plate is connected to the transducer apparatus. The lead is connected to the transducer apparatus, and comprises a first lead section extending from the inner ring fixing portion to the outer ring fixing portion. The size of the first vibration transmission sheet along a long axis direction is larger than the size thereof along a short axis direction. The included angle between the first lead section and the long axis direction is smaller than the included angle between the first lead section and the short axis direction. In this way, the present application can improve the structural stability of the speaker assembly.

Description

earphone

Technical field

[0001] The present application relates to the technical field of electronic equipment, and in particular to headphones. [Background Technology]

[0002] With the increasing popularity of electronic devices, they have become indispensable social and entertainment tools in people's daily lives, and people's expectations of electronic devices are becoming increasingly higher. Electronic devices such as headphones and smart glasses have also become widely used in people's daily lives. They can be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast.

[0003] However, the bone conduction speakers in existing headphones are not structurally stable when vibrating.

[0004] [Summary of the invention]

[0005] The present application provides an earphone, characterized in that the earphone includes a speaker assembly and a wearing assembly connected to the speaker assembly, the wearing assembly is used to position the speaker assembly in the facial area in front of the user's tragus when worn, the speaker assembly includes a bone conduction speaker, the bone conduction speaker includes a movement housing, a first vibration transmitting piece, a transducer, a vibration plate and a lead, the first vibration transmitting piece includes an inner ring fixing part, an outer ring fixing part and at least two elastic connecting parts, the outer ring fixing part is arranged around the periphery of the inner ring fixing part, and the at least two elastic connecting parts are connected to the inner ring fixing part and Between the outer ring fixing parts, the inner ring fixing part is connected to the transducer, and the outer ring fixing part is connected to the movement housing, so that the transducer is suspended in the movement housing, the vibration plate is connected to the transducer, and the lead is connected to the transducer, and includes a first lead part extending from the inner ring fixing part to the outer ring fixing part. When observed along the vibration direction of the vibration plate, the first vibration transmission piece has a long axis direction and a short axis direction that are perpendicular to each other, and the size of the first vibration transmission piece along the long axis direction is larger than the size along the short axis direction, and the angle between the first lead part and the long axis direction is smaller than the angle between the first lead part and the short axis direction.

[0006] In some embodiments, the first lead portion is disposed along a long axis direction.

[0007] In some embodiments, a rotating shaft mechanism spaced apart from each other along the short axis direction is provided on the movement housing, and the rotating shaft mechanism is used to define a rotation axis so that the movement housing rotates around the rotation axis. The lead includes a second lead portion, which is connected to one end of the first lead portion near the outer ring fixing portion and extends along the circumference of the movement housing toward the rotating shaft mechanism.

[0008] In some embodiments, a wire guide groove is provided on the movement housing along the circumference of the movement housing, and the second wire guide portion is embedded in the wire guide groove.

[0009] In some embodiments, a first hollow area is provided on the outer ring fixing portion, a first embedded block is provided on the movement housing, the first embedded block is further embedded in the first hollow area, the lead groove further extends to the first embedded block, the first vibration transmission plate is a metal part, and the first embedded block is a plastic part.

[0010] In some embodiments, a housing lead hole is provided on the movement housing, an extension direction of the housing lead hole intersects with the rotation axis, and the second lead portion further passes through the housing lead hole and is used to connect to the control circuit board.

[0011] In some embodiments, the speaker assembly further includes a main shell, the movement shell includes a bottom wall and a peripheral side wall connected to the bottom wall to form a accommodating space with an open end, the transducer is arranged in the accommodating space, the shell lead hole is arranged on the bottom wall, the shaft mechanism is arranged on the peripheral side wall, the shaft mechanism rotates and supports the movement shell on the main shell, and the control circuit board is arranged in the main shell and is located on the side of the bottom wall of the movement shell away from the transducer device.

[0012] In some embodiments, the transducer device includes a bracket and a coil arranged on the bracket, a weight-reducing cavity is provided on the bracket, the bracket is connected to the inner ring fixing portion, the bracket is provided with a first bracket lead hole, the first bracket lead hole connects the weight-reducing cavity and the side of the bracket close to the inner ring fixing portion, the lead includes a third lead portion, the third lead portion is connected to one end of the first lead portion close to the inner ring fixing portion, and extends along the first bracket lead hole to the weight-reducing cavity, and is electrically connected to the coil.

[0013] In some embodiments, a second hollow area is provided on the inner ring fixing portion, a second embedded block is provided on the bracket, at least a portion of the second embedded block is further embedded in the second hollow area, the first bracket lead hole is provided on the second embedded block, the first vibration transmission plate is a metal part, and the second embedded block is a plastic part.

[0014] In some embodiments, the transducer device includes a magnetic cover, a coil and a bracket. The magnetic cover is cylindrical and is provided with a connecting hole connecting the inner wall and outer wall of the magnetic cover along the radial direction of the magnetic cover. The bracket is arranged on the magnetic cover in a molded manner and includes a bracket body, a limiting part and a connecting part, wherein the bracket body is at least partially arranged inside the inner wall, the limiting part is arranged on the outer wall, and the connecting part connects the bracket body and the limiting part in an integral manner through the connecting hole. The limiting part is used to limit the coil arranged on the outer wall, and the bracket body is connected to the vibration plate.

[0015] In some embodiments, the limiting portion is configured to abut against the coil along the axial direction of the magnetic conductive cover.

[0016] In some embodiments, the limiting portion is arranged in a ring shape along the circumference of the magnetic conductive cover.

[0017] In some embodiments, the limiting portion includes a first sub-limiting portion and a second sub-limiting portion spaced apart along the axial direction of the magnetic conductive cover, and the coil is wound between the first sub-limiting portion and the second sub-limiting portion.

[0018] In some embodiments, the material density of the bracket is less than the material density of the magnetically conductive cover.

[0019] In some embodiments, the bracket body is provided with a weight-reducing cavity, and a bracket lead hole is provided on the connecting portion. The lead end of the coil further extends into the weight-reducing cavity through the bracket lead hole, and the lead is provided to be connected to the lead end of the coil in the weight-reducing cavity.

[0020] In some embodiments, the leads and the lead ends are in two corresponding groups, and the stent body is provided with a spacing mechanism located in the weight-reducing cavity, and the spacing mechanism is used to maintain a predetermined spacing between the connection positions of the two groups of leads and the lead ends.

[0021] In some embodiments, a first connector hole and a plurality of first connector pins are provided on the side of the inner ring fixing portion of the bracket body, and the plurality of first connector pins are arranged around and spaced apart on the periphery of the first connector hole; the inner ring fixing portion is provided with an exposed hole and a plurality of assembly holes, and the plurality of assembly holes are arranged around and spaced apart on the periphery of the exposed hole; the first connector hole is exposed through the exposed hole, and the first connector pin is inserted into the corresponding assembly hole; a second connector pin and a plurality of second connector holes are provided on the vibration plate, and the plurality of second connector holes are arranged around and spaced apart on the periphery of the second connector pin; the second connector pin is plugged into and fitted with the first connector hole, and the first connector pin is plugged into and fitted with the second connector hole.

[0022] In some embodiments, the bracket body is further provided with a third connecting post located in the first connecting hole, and the vibration plate is provided with a third connecting hole located on the second connecting post, and the third connecting post is plugged into and matched with the third connecting hole.

[0023] In some embodiments, the bone conduction speaker further includes a cover, the transducer device includes a bracket, the first vibration transmission plate is connected to the bracket and the movement housing to suspend the transducer device in the movement housing, the vibration plate is connected to the bracket, the bracket is provided with a first weight-reducing cavity located inside the movement housing and having an open end, and the cover is used to seal the open end of the first weight-reducing cavity.

[0024] In some embodiments, the movement housing includes a bottom wall and a peripheral side wall connected to the bottom wall to form a accommodating space with one end open. The transducer is arranged in the accommodating space, and the open end of the first weight reduction cavity is arranged toward the bottom wall.

[0025] In some embodiments, the cover is configured to seal the first weight-reducing cavity at one side of the open end of the first weight-reducing cavity.

[0026] In some embodiments, a second weight-reducing cavity is provided on a side of the cover body facing the first weight-reducing cavity, and the first weight-reducing cavity and the second weight-reducing cavity are communicated with each other.

[0027] In some embodiments, the cover is detachably connected to the bracket.

[0028] In some embodiments, the bracket is provided with a connector hole located outside the first weight reduction cavity, the cover body includes a cover plate body and a connector post provided on one side of the cover plate body, the connector post is connected to the connector hole, and the cover plate body covers the open end of the first weight reduction cavity.

[0029] In some embodiments, the bone conduction speaker also includes a vibration face-mounted assembly, the movement housing includes a bottom wall and a peripheral side wall connected to the bottom wall to form a accommodating space with an open end, the transducer device is placed in the accommodating space through the open end of the movement housing, the transducer device includes a bracket, the first vibration plate connects the bracket and the movement housing to elastically suspend the transducer device in the movement housing, the vibration face-mounted assembly is assembled and fixed to the bracket along the spacing direction between the bracket and the bottom wall, the bottom wall is provided with a through hole arranged opposite to the bracket, the through hole is configured to allow a supporting jig to be inserted into the accommodating space from the through hole and support the bracket when the vibration face-mounted assembly is assembled and fixed to the bracket.

[0030] In some embodiments, when observed along the vibration direction of the transducer device, the bone conduction speaker has a long axis direction and a short axis direction, and the size of the bone conduction speaker along the long axis direction is larger than the size along the short axis direction. The number of through holes is two, and the two through holes are arranged at intervals along the long axis direction.

[0031] In some embodiments, in a reference plane perpendicular to the vibration direction of the transducer device, the through hole forms a first projection area in the reference plane along the vibration direction, and the bracket forms a second projection area in the reference plane along the vibration direction, and the area ratio of the overlapping part of the first projection area and the second projection area to the second projection area is greater than or equal to 0.3.

[0032] In some embodiments, the first vibration transmission plate includes an inner ring fixing portion, an outer ring fixing portion and at least two elastic connecting portions. The outer ring fixing portion is arranged around the periphery of the inner ring fixing portion. At least two elastic connecting portions are connected between the inner ring fixing portion and the outer ring fixing portion. The inner ring fixing portion is connected to the bracket, and the outer ring fixing portion is connected to the movement housing. The radial dimension of the vibration transmission face assembly is larger than the radial dimension of the outer ring fixing portion.

[0033] In some embodiments, the vibration transmission face-fitting assembly includes a vibration plate, a soft vibration transmission part and a hard bracket, wherein the middle area of ​​the soft vibration transmission part is fixed to the vibration plate in a molding manner, the edge area of ​​the soft vibration transmission part is fixed to the hard bracket in a molding manner, the vibration plate and the bracket are plugged together along the spacing direction, the hard bracket is connected to the movement housing, and the radial dimension of the hard bracket is larger than the radial dimension of the outer ring fixing part.

[0034] The beneficial effect of the present application is that by setting the first lead portion to have an angle with the long axis direction that is smaller than the angle with the short axis direction, the length of the first lead portion is increased, thereby effectively reducing the ratio of the stretched length generated by stretching the first lead portion when the transducer device vibrates relative to the total length of the first lead portion, thereby effectively reducing the possibility of the transducer device over-stretching the first lead portion during vibration, effectively improving the structural stability and reliability of the speaker assembly, and effectively improving the service life of the speaker assembly.

Brief Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0036] FIG1 is a schematic diagram of the three-dimensional structure of an embodiment of the earphone of the present application;

[0037] FIG2 is a schematic diagram of the disassembled structure of the earphone shown in FIG1 ;

[0038] FIG3 is a schematic diagram of a usage scenario of the earphone shown in FIG1 ;

[0039] FIG4 is a schematic diagram of the disassembled structure of the bone conduction speaker shown in FIG2 ;

[0040] FIG5 is a schematic top view of the bone conduction speaker shown in FIG2 showing the first vibration transmitting piece;

[0041] FIG6 is a schematic top view of the bone conduction speaker shown in FIG2 , excluding the first vibration transmitting piece;

[0042] FIG7 is a schematic cross-sectional view of section ZZ as shown in FIG1 ;

[0043] FIG8 is a schematic diagram of the three-dimensional structure of the movement housing shown in FIG4 ;

[0044] FIG9 is a bottom view schematic diagram of a partial structure of the energy conversion device shown in FIG4 ;

[0045] FIG10 is another disassembled structural diagram of the bone conduction speaker shown in FIG2 ;

[0046] FIG11 is a schematic diagram of a partially disassembled structure of the transducer device shown in FIG10 ;

[0047] FIG12 is a bottom view schematic diagram of a partial structure of the transducer device shown in FIG10;

[0048] FIG13 is a schematic top view of the bone conduction speaker shown in FIG2 without showing the vibration plate;

[0049] FIG14 is a schematic diagram of the three-dimensional structure of the vibration plate shown in FIG10;

[0050] FIG15 is another disassembled structural diagram of the bone conduction speaker shown in FIG2 ;

[0051] FIG16 is a bottom view of the bone conduction speaker shown in FIG2 ;

[0052] FIG17 is a schematic diagram of the overall structure of an embodiment of a transducer device provided by the present application;

[0053] FIG18 is a schematic diagram of the exploded structure of some components of the embodiment of the energy conversion device shown in FIG17 ;

[0054] FIG19 is a schematic cross-sectional view of the embodiment of the transducer device shown in FIG17 along the cutting direction aa;

[0055] FIG20 is a schematic diagram of a top view of the embodiment of the energy conversion device shown in FIG17;

[0056] FIG21 is a schematic diagram comparing the circumference of the outer edge of the outer ring fixing portion and the total width of the notch at the outer edge of the outer ring fixing portion in the embodiment of the energy conversion device shown in FIG20 ;

[0057] FIG22 is a schematic cross-sectional structural diagram of the embodiment of the transducer device shown in FIG17 taken along the cutting direction aa from another perspective;

[0058] FIG23 is an enlarged structural diagram of the energy conversion device embodiment shown in FIG19 in region I;

[0059] FIG24 is a schematic diagram of the overall structure of some components of the bone conduction speaker in the earphone embodiment shown in FIG2 ;

[0060] FIG25 is a schematic cross-sectional view of the bone conduction speaker embodiment shown in FIG24 along the bb cutting direction;

[0061] FIG26 is a schematic structural diagram of the first vibration transmitting piece in the embodiment of the bone conduction speaker shown in FIG24 ;

[0062] FIG27 is a schematic diagram of the exploded structure of some components of the bone conduction speaker embodiment shown in FIG24 ;

[0063] FIG28 is a schematic structural diagram of a second vibration transmitting piece in the embodiment of the transducer device shown in FIG17 ;

[0064] FIG29 is another schematic structural diagram of the second vibration transmitting plate in the embodiment of the transducer device shown in FIG17 . [Specific implementation method]

[0065] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application and do not limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0066] As shown in Figure 1, the headset 1 may include a wearing assembly 2, a speaker assembly 3, and a stick microphone assembly 7. There may be two speaker assemblies 3. The two speaker assemblies 3 are respectively configured to transmit vibration and / or sound to the user's left and right ears. The two speaker assemblies 3 may be identical or different. For example, one speaker assembly 3 may be provided with a stick microphone assembly 7, while the other speaker assembly 3 may not be provided with a stick microphone assembly 7.

[0067] As shown in Figure 2, the wearing assembly 2 may include a headband assembly 21, a telescopic assembly 22, and a torsion assembly 23. There may be two telescopic assemblies 22, and two torsion assemblies 23. The two ends of the headband assembly 21 are connected to two telescopic assemblies 22 in a one-to-one correspondence, and the two telescopic assemblies 22 are connected to two torsion assemblies 23 in a one-to-one correspondence. The two torsion assemblies 23 are connected to two speaker assemblies 3 in a one-to-one correspondence. The headband assembly 21 is used to pass over the top of the user's head. The shape of the headband assembly 21 can match the user's head contour, making the user more comfortable and stable when wearing the headband assembly 21. The headband assembly 21 is also used to elastically clamp the two sides of the user's head. The telescopic assembly 22 can perform telescopic movement to change its own length, thereby changing the distance between the headband assembly 21 and the speaker assembly 3. This can be adaptively adjusted according to the user's head shape to position the speaker assembly 3 in the appropriate position, thereby improving the compatibility of the wearing assembly 2. The torsion component 23 can generate elastic torsion, and can generate torsion as the speaker component 3 contacts the user's head in the wearing state, so that the speaker component 3 can better fit the user's face or be positioned on the ear.

[0068] As shown in Figure 2, the headband assembly 21 may include a clamping assembly 210 and a first elastic covering body 212. The clamping assembly 210 may include an elastic sheet to realize an elastic clamping function. The first elastic covering body 212 may include a covering body 2121 and an elastic band 2122 integrally formed with the covering body 2121. The covering body 2121 is covered around the periphery of the clamping assembly 210 and the wire in a molded manner. The two ends of the elastic band 2122 are spaced apart from each other along the length direction of the clamping assembly 210 and are respectively connected to the covering body 2121. The elastic band 2122 is separated from the covering body 2121 between the two ends of the elastic band 2122 and the connection position of the covering body 2121. The elastic band 2122 is used to assist in positioning the clamping assembly 210 on the user's head when worn.

[0069] As shown in FIG2 , the telescopic assembly 22 may include a fixed portion 221 and a telescopic portion 223 that is telescopically arranged relative to the fixed portion 221. The two ends of the clamping assembly 210 are respectively fixed to the corresponding fixed portion 221, for example, by plugging. The telescopic assembly 22 may include a decorative portion 224. The fixed portion 221 is provided with a slide groove 2203, and the telescopic portion 223 is slidably arranged within the slide groove 2203. The decorative portion 224 is assembled and fixed to the fixed portion 221 (for example, they cover each other) to cover the slide groove 2203 and the portion of the telescopic portion 223 located within the slide groove 2203.

[0070] As shown in FIG2 , the torsion assembly 23 may include an elastic connector 231, a second elastic covering body 232, and a first connector 233 and a second connector 234 provided at both ends of the elastic connector 231. The elastic connector 231 is roughly indicated by a dotted line in FIG2 . The second elastic covering body 232 is molded around the outer periphery of the elastic connector 231, and the wires can be passed through the second elastic covering body 232. The first connector 233 is plugged into and mated with the connector jack 310 of the speaker assembly 3, and the second connector 234 is plugged into and mated with the connector jack (not marked) of the telescopic portion 223.

[0071] As shown in Figure 2, the speaker assembly 3 may include a housing assembly 30, a bone conduction speaker 40, and an air conduction speaker 50. The speaker assembly 3 may also include at least one of a battery 61 and a control circuit board 62. The housing assembly 30 is used to accommodate the bone conduction speaker 40 and the air conduction speaker 50. The bone conduction speaker 40 is designed to fit snugly on the user's face, while the air conduction speaker 50 is designed to transmit air-conducted sound waves to the user's ear canal. When the earphone 1 is worn on the user's head, the wearing assembly 2 can position the speaker assembly 3 in the facial area in front of the user's tragus.

[0072] As shown in Figure 2, the housing assembly 30 may include a main shell 31 and a main cover 32. The main shell 31 may have an open end, and the main cover 32 covers the open end of the main shell 31. The main cover 32 may be provided with a sound outlet (not marked) for the air conduction speaker 50 to emit sound. Part of the bone conduction speaker 40 may be exposed through the open end 31 of the main shell for fitting the user's face. The vibration directions of the bone conduction speaker 40 and the air conduction speaker 50 may be perpendicular to each other, and they may be assembled on the main shell 31 in a manner such that the vibration directions are perpendicular to each other to reduce mutual interference between the bone conduction speaker 40 and the air conduction speaker 50. For comfort when fitting the face, the bone conduction speaker 40 may be provided with an auxiliary face-fitting assembly 44. The auxiliary face-fitting assembly 44 is used to increase the contact area between the bone conduction speaker 40 and the user's face when worn, thereby improving wearing comfort. The auxiliary face-fitting component 44 may include a hard support component 441 and a soft fitting component 442. The hard support component 441 is used to support the soft fitting component 442 to improve the structural strength and stability of the auxiliary face-fitting component 44. The soft fitting component 442 is used to fit the user's face toward the user's face, and can fit the user's face more stably and tightly with the support of the hard support component 441.

[0073] As shown in Figure 2, the speaker assembly 3 may include at least one of a control circuit board 62 and a battery 61. For example, one speaker assembly 3 may include a control circuit board 62, and another speaker assembly 3 may not include the control circuit board 62, but may include a battery 61. The connecting wires between the two speaker assemblies 3 may be passed across the wearable assembly 2. For example, a speaker assembly 3 may include both a control circuit board 62 and a battery 61. Alternatively, the number of control circuit boards 62 may be two, and each speaker assembly 3 may include a control circuit board 62 respectively. There may also be two batteries 61, and each speaker assembly 3 may include a battery 61 respectively.

[0074] The stick microphone assembly 7 is rotatably mounted on the speaker assembly 3. The stick microphone assembly 7 includes a stick body assembly 70, a microphone assembly 80, and a hinge mechanism 91. The microphone assembly 80 and the hinge mechanism 91 are connected to both ends of the stick body assembly 70, and the hinge mechanism 91 is rotatably connected to the speaker assembly 3. When worn, the hinge mechanism 91 can be rotated relative to the speaker assembly 3 to position the microphone assembly 80 within the sound pickup area of ​​the user's mouth. The microphone assembly 80 is equipped with at least one microphone and an associated button that turns the microphone on and off.

[0075] In fields like medicine and anatomy, the human body is defined as having three fundamental planes: the sagittal plane, the coronal plane, and the horizontal plane, as well as three fundamental axes: the sagittal axis (SA), the coronal axis (CA), and the vertical axis (VA). The sagittal plane is a plane perpendicular to the ground, drawn along the anterior-posterior axis of the body, dividing the body into left and right halves. The coronal plane is a plane perpendicular to the ground, drawn along the lateral-lateral axis of the body, dividing the body into anterior-posterior halves. The horizontal plane is a plane parallel to the ground, drawn along the lateral-lateral axis of the body, dividing the body into upper and lower halves. Accordingly, the sagittal axis (SA) is the axis along the lateral-lateral axis of the body and perpendicular to the coronal plane; the coronal axis is the axis along the lateral-lateral axis of the body and perpendicular to the sagittal plane; and the vertical axis (VA) is the axis along the lateral-lateral axis of the body and perpendicular to the horizontal plane. As shown in FIG3 , when the earphone 1 is worn, the wearing component 2 is clamped on both sides of the user's head, and the speaker component 3 is located in the facial area in front of the tragus along the sagittal axis SA.

[0076] The following content will provide a detailed description of the earphone 1 or some of the components and structures mentioned above. Of course, some of the structures and components mentioned above, such as the bone conduction speaker 40, the air conduction speaker 50, etc., can be used not only in the earphone 1, but also in other electronic devices, such as mobile phones, speakers, smart wearable devices, etc.

[0077] Optionally, as shown in Figures 2, 3 and 4, in some embodiments, the speaker assembly 3 may include a bone conduction speaker 40, which includes a movement housing 41, a first vibration transmission piece 45, a transducer device 42, a vibration plate 431 and a lead 46.

[0078] The first vibration transmission plate 45 includes an inner ring fixing portion 451, an outer ring fixing portion 452 and at least two elastic connecting portions 453. The outer ring fixing portion 452 is arranged around the periphery of the inner ring fixing portion 451. At least two elastic connecting portions 453 are connected between the inner ring fixing portion 451 and the outer ring fixing portion 452. The inner ring fixing portion 451 is connected to the transducer device 42, and the outer ring fixing portion 452 is connected to the movement housing 41, thereby suspending the transducer device 42 in the movement housing 41, and the vibration plate 431 is connected to the transducer device 42.

[0079] The lead 46 is connected to the transducer device 42 and includes a first lead portion 461 extending from the inner ring fixing portion 451 to the outer ring fixing portion 452. When observed along the vibration direction z1 of the vibration plate 431, the first vibration transmission piece 45 has a long axis direction LD1 and a short axis direction SD1 that are perpendicular to each other, and the dimension ld1 of the first vibration transmission piece 45 along the long axis direction LD1 is larger than the dimension sd1 along the short axis direction SD1, and the angle between the first lead portion 461 and the long axis direction LD1 is smaller than the angle between the first lead portion 461 and the short axis direction SD1.

[0080] By configuring the first vibration transmitting plate 45 to include an inner ring fixing portion 451, an outer ring fixing portion 452, and at least two elastic connecting portions 453, the inner ring fixing portion 451 and the outer ring fixing portion 452 are connected to the transducer device 42 and the movement housing 41, respectively, so that the transducer device 42 is suspended in the movement housing 41, that is, the transducer device 42 can move relative to the movement housing 41, so that the transducer device 42 can vibrate inside the movement housing 41, thereby enabling the speaker assembly 3 to convert sound into mechanical vibrations of different frequencies, and when worn on the user's head through the wearing assembly 2, the speaker assembly 3 contacts the user's cheekbones and directly transmits sound, thereby achieving a good sound transmission effect and effectively improving the sound quality of the earphone 1. The number of elastic connecting portions 453 can be, for example, 2, 4, 6, 8, etc., and of course it can also be other numbers. It is worth noting that the first lead portion 461 is arranged between adjacent elastic connecting portions 453.

[0081] The lead 46 is connected to the transducer device 42 and is used to transmit electrical signals to the transducer device 42. By arranging the angle between the first lead portion 461 and the major axis direction LD1 to be smaller than the angle between the first lead portion 461 and the minor axis direction SD1, the length of the first lead portion 461 is increased, thereby effectively reducing the ratio of the stretched length of the first lead portion 461 caused by stretching the first lead portion 461 during vibration of the transducer device 42 relative to the total length of the first lead portion 461. This effectively reduces the possibility of the transducer device 42 over-stretching the first lead portion 461 during vibration, effectively improving the structural stability and reliability of the speaker assembly 3, and effectively increasing the service life of the speaker assembly 3.

[0082] Optionally, as shown in FIG5 , the first lead portion 461 is arranged along the long axis direction LD1, i.e., the angle between the first lead portion 461 and the long axis direction LD1 is 0°, and the angle between the first lead portion 461 and the short axis direction SD1 is 90°. Positioning the first lead portion 461 along the long axis direction LD1 facilitates positioning while further increasing its length, thereby effectively reducing the possibility of excessive stretching of the transducer 42 during vibration, effectively improving the structural stability and reliability of the speaker assembly 3, and effectively increasing the service life of the speaker assembly 3. In some embodiments, the angle between the first lead portion 461 and the long axis direction LD1 can be 10°, and the angle between the first lead portion 461 and the short axis direction SD1 can be 80°. In some embodiments, the angle between the first lead portion 461 and the long axis direction LD1 can be 20°, and the angle between the first lead portion 461 and the short axis direction SD1 can be 70°. In some embodiments, the angle between the first lead portion 461 and the long-axis direction LD1 may be 30°, and the angle between the first lead portion 461 and the short-axis direction SD1 may be 60°.

[0083] Optionally, as shown in Figures 5 and 6, the movement housing 41 is provided with a rotating shaft mechanism 41x spaced from each other along the short axis direction SD1, and the rotating shaft mechanism 41x is used to define a rotation axis Ax1 so that the movement housing 41 rotates around the rotation axis Ax1. The lead 46 includes a second lead portion 462, and the second lead portion 462 is connected to one end of the first lead portion 461 near the outer ring fixing portion 452, and extends along the circumference of the movement housing 41 toward the rotating shaft mechanism 41x.

[0084] By setting a hinge mechanism 41x to enable the movement housing 41 to rotate around the rotation axis Ax1, the second lead portion 462 is set to be connected to the end of the first lead portion 461 close to the outer ring fixing portion 452, and extend toward the hinge mechanism 41x along the circumference of the movement housing 41, thereby effectively reducing the degree of stretching / shaking of the second lead portion 462 during the rotation of the movement housing 41, thereby reducing the possibility of over-stretching the second lead portion 462, effectively improving the structural stability and reliability of the speaker assembly 3, and effectively improving the service life of the speaker assembly 3.

[0085] Optionally, as shown in FIG6 , the core housing 41 is provided with a wire guide groove 4105 along the circumference of the core housing 41, and the second lead portion 462 is embedded in the wire guide groove 4105. Providing the wire guide groove 4105 to accommodate the second lead portion 462 facilitates positioning and installation of the second lead portion 462 while effectively protecting and securing the second lead portion 462. This also reduces the possibility of interference between the second lead portion 462 and other components, thereby effectively improving the reliability of the speaker assembly 3.

[0086] Optionally, as shown in Figures 4 and 6 , a first hollowed-out area 454 is provided on the outer ring fixing portion 452, and a first insert 414 is provided on the movement housing 41. The first insert 414 is further embedded in the first hollowed-out area 454, and the lead groove 4105 further extends onto the first insert 414. The first vibration transmitting plate 45 can be a metal component, and the first insert 414 can be a plastic component. The first vibration transmitting plate 45 can be made of a demagnetized metal material, such as demagnetized stainless steel or demagnetized aluminum alloy.

[0087] By providing a first hollow area 454 and a first insert 414 to cooperate with each other to achieve the connection between the first vibration transmitting plate 45 and the movement housing 41, the structure is simple, easy to assemble, and effectively improves assembly efficiency. Furthermore, the first vibration transmitting plate 45 may be a metal component, and the first insert 414 may be a plastic component, i.e., the first insert 414 has a lower hardness than the first vibration transmitting plate 45. The first insert 414 can be embedded in the first hollow area 454 by undergoing a certain elastic deformation, thereby achieving an interference fit between the two, thereby improving connection stability. Furthermore, the lead wire groove 4105 is further extended to the first insert 414 to position and install the lead wire 46, effectively protecting the lead wire 46 and reducing the possibility of damage to the lead wire 46 by the outer ring fixing portion 452 during vibration of the transducer device 42, thereby improving the stability and reliability of the operation of the speaker assembly 3.

[0088] Optionally, as shown in Figures 6 and 7, a shell lead hole 4104 is provided on the movement shell 41, and the extension direction of the shell lead hole 4104 intersects with the rotation axis Ax1. The second lead portion 462 further passes through the shell lead hole 4104 and is used to connect to the control circuit board 62.

[0089] The provision of the housing lead hole 4104 enables electrical connection between the second lead portion 462 and the control circuit board 62, thereby facilitating the output of electrical signals from the control circuit board 62 and their transmission to the transducer device 42, thereby improving the operational stability and reliability of the speaker assembly 3. Furthermore, the extension direction of the housing lead hole 4104 intersects the rotation axis Ax1, effectively reducing the stretching of the second lead portion 462 during the rotation of the movement housing 41, thereby improving the operational stability and reliability of the speaker assembly 3.

[0090] Optionally, as shown in Figures 2, 4 and 8, the speaker assembly 3 further includes a main shell 31, the movement shell 41 includes a bottom wall 411 and a peripheral side wall 412 connected to the bottom wall 411 to form a accommodating space 410 with an open end, the transducer device 42 is arranged in the accommodating space 410, the shell lead hole 4104 is arranged on the bottom wall 411, the rotating shaft mechanism 41x is arranged on the peripheral side wall 412, the rotating shaft mechanism 41x rotatably supports the movement shell 41 on the main shell 31, and the control circuit board 62 is arranged in the main shell 31 and is located on the side of the bottom wall 411 of the movement shell 41 away from the transducer device 42.

[0091] By arranging the transducer device 42 in the accommodating space 410, arranging the shell lead hole 4104 on the bottom wall 411, and arranging the control circuit board 62 on the side of the bottom wall 411 of the movement shell 41 away from the transducer device 42, while realizing that the second lead portion 462 passes through the shell lead hole 4104 to connect to the control circuit board 62, the length required for the second lead portion 462 to extend through the shell lead hole 4104 is reduced, thereby effectively improving the layout rationality and space utilization of the speaker assembly 3, which is beneficial to improving the structural integration of the speaker assembly 3.

[0092] Optionally, as shown in Figure 7, along the vibration direction z1 of the vibration plate 431, the distance between the rotating shaft mechanism 41x and the bottom wall 411 is smaller than the distance between the rotating shaft mechanism 41x and the opening end 413 of the movement housing 41, that is, the rotating shaft mechanism 41x is closer to the bottom wall 411 than the opening end 413, so as to provide a larger accommodating space 410 for the control circuit board 62 and reduce the possibility of other components interfering with the control circuit board 62, which is beneficial to improving the stability and reliability of the operation of the speaker assembly 3.

[0093] Optionally, as shown in Figures 4 and 9, the transducer device 42 includes a bracket 421 and a coil 422 arranged on the bracket 421, a weight reduction cavity 420 is provided on the bracket 421, the bracket 421 is connected to the inner ring fixing portion 451, the bracket 421 is provided with a first bracket lead hole 4201, the first bracket lead hole 4201 connects the weight reduction cavity 420 and the side of the bracket 421 close to the inner ring fixing portion 451, the lead 46 includes a third lead portion 463, the third lead portion 463 is connected to the end of the first lead portion 461 close to the inner ring fixing portion 451, and extends along the first bracket lead hole 4201 to the weight reduction cavity 420, and is electrically connected to the coil 422.

[0094] By setting up the weight-reducing cavity 420, the weight of the bracket 421 can be effectively reduced, which is beneficial to improving the vibration effect of the transducer device 42, and the third lead portion 463 is connected to the first lead portion 461 near one end of the inner ring fixing portion 451, and extends along the first bracket lead hole 4201 to the weight-reducing cavity 420 to be electrically connected to the coil 422, thereby reducing the possibility of the third lead portion 463 interfering with peripheral components during the vibration process, which is beneficial to improving the stability and reliability of the speaker assembly 3.

[0095] Optionally, as shown in Figures 4 and 6 , the inner ring fixing portion 451 is provided with a second hollowed-out area 455 , the bracket 421 is provided with a second insert 4217 , at least a portion of which is further embedded in the second hollowed-out area 455 , and the first bracket lead hole 4201 is provided on the second insert 4217 . The first vibration transmission piece 45 may be a metal component, and the second insert 4217 may be a plastic component. Optionally, the second insert 4217 includes a connector post 4204 , which is further embedded in the second hollowed-out area 455 .

[0096] By providing a second hollow area 455 and a second insert 4217 to connect the inner ring fixing portion 451 to the bracket 421, the structure is simple, easy to assemble, and effectively improves assembly efficiency. Furthermore, the first vibration transmitting plate 45 can be metal, and the second insert 4217 can be plastic. Specifically, the second insert 4217 has a lower hardness than the first vibration transmitting plate 45. The second insert 4217 can be embedded in the second hollow area 455 by undergoing a certain degree of elastic deformation, thereby creating an interference fit between the two and improving connection stability. Furthermore, the first bracket lead hole 4201 is located in the second insert 4217, effectively protecting the lead 46 and reducing the possibility of damage to the lead 46 from the inner ring fixing portion 451 during vibration of the transducer device 42, thereby improving the stability and reliability of the speaker assembly 3.

[0097] Optionally, as shown in Figure 9, the coil 422 is wound around the periphery of the bracket 421, and the bracket 421 is provided with a second bracket lead hole 4202, the second bracket lead hole 4202 connects the weight reduction cavity 420 and the periphery of the bracket 421, and the lead end 4221 of the coil 422 is further introduced into the weight reduction cavity 420 through the second bracket lead hole 4202, and is connected to the third lead portion 463.

[0098] By setting the second bracket lead hole 4202, the lead end 4221 of the coil 422 is introduced into the weight reduction cavity 420 through the second bracket lead hole 4202, thereby reducing the possibility of interference between the coil 422 and peripheral components during vibration, which is beneficial to improving the stability and reliability of the speaker assembly 3.

[0099] Optionally, as shown in Figures 2, 10 and 11, in some embodiments, the speaker assembly 3 may include a bone conduction speaker 40, the bone conduction speaker 40 includes a transducer 42 and a vibration plate 431, the transducer 42 includes a magnetic shield 423, a coil 422 and a bracket 421, the magnetic shield 423 is cylindrical and has a connecting hole 4230 connecting the inner wall surface and the outer wall surface of the magnetic shield 423 along the radial direction of the magnetic shield 423, and the bracket 421 is formed. It is on the magnetic cover 423 and includes a bracket body 4211, a limiting portion 4212 and a connecting portion 4213, wherein the bracket body 4211 is at least partially arranged inside the inner wall surface, the limiting portion 4212 is arranged on the outer wall surface, and the connecting portion 4213 connects the bracket body 4211 and the limiting portion 4212 as a whole through the connecting hole 4230. The limiting portion 4212 is used to limit the coil 422 arranged on the outer wall surface, and the bracket body 4211 is connected to the vibration plate 431.

[0100] By molding the bracket 421 onto the magnetic cover 423, the assembly process between the bracket 421 and the magnetic cover 423 is simplified and the assembly effect is improved. Furthermore, by providing the connection portion 4213 in conjunction with the connecting hole 4230, the connection stability and reliability between the bracket 421 and the magnetic cover 423 are effectively improved. The limiting portion 4212 is used to limit the position of the coil 422, thereby reducing the possibility of misalignment of the coil 422, thereby improving the vibration effect of the transducer 42 and thus improving the operating stability and reliability of the speaker assembly 3. Molding methods, for example, can include injection molding, compression molding, and thermoplastic molding, although other methods are also possible.

[0101] Optionally, as shown in Figures 10 and 11, the limiting portion 4212 is configured to abut against the coil 422 along the axial direction of the magnetic cover 423, so that the coil 422 is limited by the limiting portion 4212, making it easier for the coil 422 to be mounted or wound on the magnetic cover 423, effectively reducing the difficulty of assembling the coil 422 and improving assembly efficiency.

[0102] In some embodiments, the limiting portion 4212 is arranged in a ring shape along the circumference of the magnetic cover 423 to facilitate limiting the coil 422 set on the outer wall surface of the magnetic cover 423, thereby effectively improving the limiting effect.

[0103] In some embodiments, the limiting portion 4212 is configured to abut against the coil 422 on one side of the coil 422 along the axial direction of the magnetic cover 423. Such a configuration allows the wound coil 422 to be smoothly fitted onto the periphery of the magnetic cover 423, and then abut against the limiting portion 4212, while the other side is fixed by glue. While limiting the coil 422, it effectively simplifies the process flow and reduces the difficulty of assembly, which is conducive to improving assembly efficiency.

[0104] Optionally, as shown in Figures 10 and 11, the limiting portion 4212 includes a first sub-limiting portion 4214 and a second sub-limiting portion 4215 arranged at axial intervals along the magnetic cover 423, and the coil 422 is wound between the first sub-limiting portion 4214 and the second sub-limiting portion 4215.

[0105] By setting the first sub-limiting portion 4214 and the second sub-limiting portion 4215 at intervals, the coil 422 can be wound between the first sub-limiting portion 4214 and the second sub-limiting portion 4215, so that the two sides of the coil 422 can be blocked and limited in the axial direction of the magnetic cover 423, and both sides of the coil 422 can be abutted, thereby effectively improving the limiting effect.

[0106] Optionally, the material density of the bracket 421 is less than the material density of the magnetic cover 423 , which is beneficial to reducing the weight of the bracket 421 , thereby improving the vibration effect of the transducer device 42 and improving the sound quality of the speaker assembly 3 .

[0107] Optionally, as shown in FIG12 , the bracket body 4211 is provided with a weight-reducing cavity 420 , the connection portion 4213 is provided with a bracket lead hole 4202 , and the lead end 4221 of the coil 422 further extends into the weight-reducing cavity 420 through the bracket lead hole 4202 .

[0108] By setting up the weight-reducing cavity 420, the weight of the bracket 421 can be effectively reduced, which is beneficial to improving the vibration effect of the transducer device 42, and at the same time making the speaker assembly 3 lightweight, and the lead-out end 4221 of the coil 422 extends into the weight-reducing cavity 420 through the bracket lead hole 4202. On the one hand, the lead-out end 4221 of the coil 422 extends into the weight-reducing cavity 420, which facilitates the connection of the lead-out end 4221 of the coil 422 to the lead 46, thereby improving the convenience of assembly; on the other hand, it is beneficial to reduce the possibility of the lead-out end 4221 of the coil 422 interfering with peripheral components during the vibration process, thereby improving the stability and reliability of the operation of the speaker assembly 3.

[0109] Optionally, as shown in Figures 10 and 13, the bone conduction speaker 40 also includes a movement housing 41, a first vibration transmission plate 45 and a lead 46. The first vibration transmission plate 45 includes an inner ring fixing portion 451, an outer ring fixing portion 452 and at least two elastic connecting portions 453. The outer ring fixing portion 452 is arranged around the periphery of the inner ring fixing portion 451. At least two elastic connecting portions 453 are connected between the inner ring fixing portion 451 and the outer ring fixing portion 452. The inner ring fixing portion 451 is connected to the bracket body 4211, and the outer ring fixing portion 452 is connected to the movement housing 41. The lead 46 is arranged to be connected to the lead end 4221 of the coil 422 in the weight reduction cavity 420.

[0110] By configuring the first vibration transmission plate 45 to include an inner ring fixing portion 451, an outer ring fixing portion 452, and at least two elastic connecting portions 453, and connecting to the transducer device 42 and the movement housing 41 via the inner ring fixing portion 451 and the outer ring fixing portion 452, respectively, the transducer device 42 is suspended within the movement housing 41, that is, the transducer device 42 can move relative to the movement housing 41, so that the transducer device 42 can vibrate within the movement housing 41, thereby enabling the speaker assembly 3 to convert sound into mechanical vibrations of different frequencies, and utilize the wearing assembly 2 to directly conduct sound through contact with the user's cheekbones to achieve good sound transmission effects, effectively improving the sound quality of the earphone 1. Furthermore, the lead wire 46 is configured to connect to the lead end 4221 of the coil 422 within the weight-reducing cavity 420, effectively reducing the possibility of interference between the lead end 4221 of the coil 422 and peripheral components during vibration, which is conducive to improving the stability and reliability of the operation of the speaker assembly 3.

[0111] Optionally, as shown in Figure 12, the leads 46 and the lead-out ends 4221 are two corresponding groups, and the bracket body 4211 is provided with a spacing mechanism 4216 located in the weight reduction cavity 420. The spacing mechanism 4216 is used to maintain a predetermined spacing between the connection positions of the two groups of leads 46 and the lead-out ends 4221, effectively reducing the possibility of short circuit, which is beneficial to improving the stability and reliability of the operation of the speaker assembly 3.

[0112] Optionally, as shown in Figures 10, 11 and 14, the bracket body 4211 is provided with a first connector hole 4203 and a plurality of first connector pins 4204 on the side facing the inner ring fixing portion 451, and the plurality of first connector pins 4204 surround and are spaced apart on the periphery of the first connector hole 4203, and the inner ring fixing portion 451 is provided with an exposed hole 4501 and a plurality of assembly holes 4502, and the plurality of assembly holes 4502 surround and are spaced apart on the periphery of the exposed hole 4501, A connector 4203 is exposed through the exposed hole 4501, and the first connector pin 4204 is inserted into the corresponding assembly hole 4502. A second connector pin 4310 and a plurality of second connector holes 4311 are provided on the vibration plate 431. The plurality of second connector holes 4311 surround and are spaced apart on the periphery of the second connector pin 4310. The second connector pin 4310 is plugged into and fitted with the first connector hole 4203, and the first connector pin 4204 is plugged into and fitted with the second connector hole 4311.

[0113] By setting the second connector pin 4310 to be plugged into the first connector hole 4203 and the first connector pin 4204 to be plugged into the second connector hole 4311, and setting the exposed hole 4501 to expose the first connector hole 4203, and setting the assembly hole 4502 so that the first connector pin 4204 can be plugged into the second connector hole 4311 through the assembly hole 4502, the connection between the bracket 421, the first vibration transmission piece 45 and the vibration plate 431 is realized, which effectively simplifies the structure, reduces the difficulty of assembly, and is conducive to improving the fixing effect between the bracket 421, the first vibration transmission piece 45 and the vibration plate 431, thereby effectively improving the connection stability.

[0114] Optionally, as shown in Figures 11 and 14, the bracket body 4211 is further provided with a third connector pin 4205 located in the first connector hole 4203, and the vibration plate 431 is provided with a third connector hole 4312 located on the second connector pin 4310, and the third connector pin 4205 is plugged into the third connector hole 4312.

[0115] By providing a third connector column 4205 and a third connector hole 4312 that are plug-fitted together, the bracket 421 and the vibration plate 431 are further connected and fixed, thereby effectively improving the connection stability and reliability.

[0116] Optionally, as shown in Figures 2, 10 and 15, in some embodiments, the speaker assembly 3 may include a bone conduction speaker 40, which includes a movement housing 41, a first vibration transmission piece 45, a vibration plate 431, a transducer device 42 and a cover 425. The transducer device 42 includes a bracket 421, the first vibration transmission piece 45 connects the bracket 421 and the movement housing 41 to suspend the transducer device 42 in the movement housing 41, the vibration plate 431 is connected to the bracket 421, and the bracket 421 is provided with a first weight reduction cavity 420 located inside the movement housing 41 and having an open end 4200. The cover 425 is used to seal the open end 4200 of the first weight reduction cavity 420.

[0117] By suspending the transducer device 42 in the movement housing 41, that is, the transducer device 42 can move relative to the movement housing 41, so that the transducer device 42 can vibrate inside the movement housing 41, the speaker assembly 3 can convert the electrical signal into mechanical vibrations of different frequencies, and utilize the wearing assembly 2 to achieve contact with the user's cheekbone to directly conduct sound, so as to achieve a good sound transmission effect. By setting the first weight-reducing cavity 420, the weight of the bracket 421 can be effectively reduced, which is conducive to improving the vibration effect of the transducer device 42, making the earphone 1 as a whole lighter, which is conducive to improving the stability and reliability of the speaker assembly 3, and is conducive to improving the sound quality of the earphone 1.

[0118] In addition, since the transducer device 42 generates sound waves when it vibrates in the movement shell 41, if the first weight-reducing cavity 420 is not sealed, the first weight-reducing cavity 420 will be connected to the acoustic cavity in the movement shell 41 for sound wave vibration, so that the volume of the acoustic cavity for sound wave vibration increases, thereby increasing sound leakage. Therefore, a cover 425 is provided to cover the open end 4200 of the first weight-reducing cavity 420 to reduce the volume of the acoustic cavity for sound wave vibration, so that the frequency of the leaked sound waves shifts to a high frequency that is difficult for the human ear to hear, thereby reducing sound leakage in the human voice frequency band and effectively improving the sound transmission effect and sound quality of the speaker assembly 3.

[0119] Optionally, as shown in Figures 10 and 15, the movement housing 41 includes a bottom wall 411 and a peripheral side wall 412 connected to the bottom wall 411 to form a accommodating space 410 with one end open. The transducer device 42 is arranged in the accommodating space 410, and the open end 4200 of the first weight reduction cavity 420 is arranged toward the bottom wall 411.

[0120] By setting the opening end 4200 of the first weight reduction cavity 420 toward the bottom wall 411, the cover body 425 can easily cover the opening end 4200 of the first weight reduction cavity 420 without hindering the transmission of sound waves to the user, thereby effectively improving the sound transmission effect and sound quality of the speaker assembly 3.

[0121] Optionally, as shown in Figures 10 and 15, the cover body 425 is configured to seal the first weight reduction cavity 420 on one side of the open end 4200 of the first weight reduction cavity 420, effectively isolating the first weight reduction cavity 420 from the accommodating space 410, so as to reduce the volume of the acoustic cavity for sound wave vibration, reduce sound leakage in the human voice frequency band, and effectively improve the sound transmission effect and sound quality of the speaker assembly 3.

[0122] Optionally, as shown in FIG10 , a second weight-reducing cavity 4250 is provided on the side of the cover 425 facing the first weight-reducing cavity 420, and the first weight-reducing cavity 420 and the second weight-reducing cavity 4250 are in communication with each other. By providing the second weight-reducing cavity 4250 on the cover 425 and connecting the second weight-reducing cavity 4250 to the first weight-reducing cavity 420 rather than to the accommodating space 410, the weight of the transducer device 42 is further reduced to enhance the vibration effect, while effectively improving the sound transmission effect and sound quality of the speaker assembly 3.

[0123] Optionally, the cover 425 is detachably connected to the bracket 421. Optionally, as shown in Figures 9 and 14, the bracket 421 is provided with a connector 4206 located on the periphery of the first weight-reducing cavity 420, and the cover 425 includes a cover body 4251 and a connector post 4252 provided on one side of the cover body 4251, the connector post 4252 being connected to the connector 4206, and the cover body 4251 covering the open end 4200 of the first weight-reducing cavity 420.

[0124] By arranging the connector post 4252 to match the connector hole 4206 to achieve a detachable connection between the cover body 425 and the bracket 421, the structure is simple, easy to assemble and disassemble, effectively reducing the difficulty of assembly and improving assembly efficiency.

[0125] Optionally, as shown in Figures 11 and 12, the transducer device 42 also includes a coil 422, which is wound around the periphery of the bracket 421. The bracket 421 is provided with a bracket lead hole 4202, and the bracket lead hole 4202 connects the first weight reduction cavity 420 and the periphery of the bracket 421. The lead end 4221 of the coil 422 is further introduced into the first weight reduction cavity 420 through the bracket lead hole 4202.

[0126] By extending the lead end 4221 of the coil 422 into the first weight reduction cavity 420 through the bracket lead hole 4202, on the one hand, the lead end 4221 of the coil 422 extends into the first weight reduction cavity 420, which facilitates the connection of the lead end 4221 of the coil 422 to the lead 46, thereby improving the convenience of assembly; on the other hand, it is beneficial to reduce the possibility of the lead end 4221 of the coil 422 interfering with peripheral components during the vibration process, thereby improving the stability and reliability of the operation of the speaker assembly 3.

[0127] Optionally, as shown in FIG. 12 , the bone conduction speaker 40 further includes a lead wire 46 , which is arranged to be connected to a lead end 4221 of the coil 422 in the first weight-reducing cavity 420 .

[0128] The lead wire 46 and the lead end 4221 of the coil 422 are connected to each other in the first weight reduction cavity 420, and the first weight reduction cavity 420 is covered by the cover body 425. While transmitting the electrical signal to the coil 422 through the lead wire 46, it is beneficial to reduce the possibility of the connection part between the lead end 4221 of the coil 422 and the lead wire 46 interfering with peripheral components during the vibration process, which is beneficial to improving the stability and reliability of the operation of the speaker assembly 3.

[0129] Optionally, as shown in Figure 11, the transducer device 42 also includes a magnetic cover 423, which is cylindrical and has a connecting hole 4230 connecting the inner wall and outer wall of the magnetic cover 423 along the radial direction of the magnetic cover 423. The coil 422 is wound on the outer wall, and the bracket 421 is formed on the magnetic cover 423 and includes a bracket body 4211 and a connecting part 4213. The bracket body 4211 is at least partially arranged inside the inner wall, the connecting part 4213 is arranged in the connecting hole 4230, and the bracket lead hole 4202 is arranged on the connecting part 4213.

[0130] By molding the bracket 421 onto the magnetic cover 423, the assembly process of the bracket 421 and the magnetic cover 423 is simplified and the assembly effect is improved. Furthermore, by providing the connection portion 4213 in conjunction with the communication hole 4230, the connection stability and reliability between the bracket 421 and the magnetic cover 423 are effectively improved. Molding methods may include injection molding, compression molding, and thermoplastic molding, but other methods are also possible.

[0131] Optionally, as shown in Figures 2, 10 and 15, in some embodiments, the speaker assembly 3 includes a bone conduction speaker 40, which includes a movement housing 41, a vibration face assembly 43, a first vibration plate 45, and a transducer 42. The movement housing 41 includes a bottom wall 411 and a peripheral side wall 412 connected to the bottom wall 411 to form a receiving space 410 with an open end. The transducer 42 is placed in the receiving space 410 through the open end 413 of the movement housing 41. The transducer 42 includes a support. The bracket 421 and the movement housing 41 are connected, and the first vibration transmission piece 45 connects the bracket 421 and the movement housing 41 to elastically suspend the transducer device 42 in the movement housing 41. The vibration transmission face-attaching component 43 is assembled and fixed on the bracket 421 along the spacing direction between the bracket 421 and the bottom wall 411. The bottom wall 411 is provided with a through hole 4110 arranged opposite to the bracket 421. The through hole 4110 is arranged to allow the supporting fixture to be inserted into the accommodating space 410 from the through hole 4110 and support the bracket 421 when the vibration transmission face-attaching component 43 is assembled and fixed on the bracket 421.

[0132] By providing a first vibration transmission plate 45 to connect the bracket 421 and the movement housing 41, the transducer device 42 is elastically suspended within the movement housing 41, that is, the relative position between the transducer device 42 and the movement housing 41 can change. The transducer device 42 vibrates within the accommodating space 410 and can reduce the vibration transmission to the movement housing 41, thereby reducing the sound leakage caused by the vibration of the movement housing 41. The vibration transmission face-mounted assembly 43 is assembled and fixed to the bracket 421 along the spacing direction between the bracket 421 and the bottom wall 411, so that the speaker assembly 3 can convert electrical signals into mechanical vibrations of different frequencies. The vibration transmission face-mounted assembly 43 is used to achieve contact with the user's cheekbone to directly transmit sound, thereby achieving good sound transmission while increasing structural stability and reliability, effectively improving the sound quality of the earphone 1. Optionally, the vibration transmission face-mounted assembly 43 and the bracket 421 are plug-fitted, adhesively bonded, or screwed together, and other mating methods are also possible.

[0133] Furthermore, since the first vibration transmission piece 45 is installed in a suspended manner, when assembling other components, it is easy for the first vibration transmission piece 45 to undergo elastic deformation and installation dislocation. For example, when installing the vibration transmission face assembly 43, since the vibration transmission face assembly 43 is fixed on the bracket 421, a certain pressing force will be applied to the bracket 421 during installation, causing the first vibration transmission piece 45 to undergo elastic deformation. Therefore, a through hole 4110 is provided on the bottom wall 411 and is arranged opposite to the bracket 421. When the vibration transmission face assembly 43 is assembled and fixed on the bracket 421, the supporting fixture is inserted from the through hole 4110 into the accommodating space 410 to provide supporting force for the bracket 421, thereby effectively reducing the possibility of deformation of the first vibration transmission piece 45, effectively improving the accuracy of positioning and installation, effectively reducing the difficulty of assembly, and effectively improving assembly efficiency and assembly yield.

[0134] Optionally, as shown in Figure 16, when observed along the vibration direction z1 of the transducer device 42, the bone conduction speaker 40 has a long axis direction LD0 and a short axis direction SD0, and the size ld0 of the bone conduction speaker 40 along the long axis direction LD0 is larger than the size sd0 along the short axis direction SD0, and the number of through holes 4110 is two, and the two through holes 4110 are arranged at intervals along the long axis direction LD0.

[0135] When viewed along the vibration direction z1 of the transducer device 42, the bone conduction speaker 40 can be elliptical, olive-shaped, or other shapes. The major axis direction LD0 is the direction of the longest line segment obtained by connecting two points on the outer edge of the bone conduction speaker 40 through the center point on a cross section of the bone conduction speaker 40 perpendicular to the vibration direction z1, while the minor axis direction SD0 is the direction of the shortest line segment obtained by connecting two points on the outer edge of the bone conduction speaker 40 through the center point on the cross section. Spacing the two through holes 4110 along the major axis LD0 provides greater installation space for the subsequent insertion of the support fixture than arranging them along other directions, enabling more stable support for the bracket 421. This ensures that the bracket 421 and the first transducer 45 maintain good balance and stability during assembly, effectively improving the stability and reliability of the bone conduction speaker 40 assembly process.

[0136] Optionally, as shown in Figure 16, in a reference plane perpendicular to the vibration direction z1 of the transducer device 42, the through hole 4110 forms a first projection area S1 in the reference plane along the vibration direction z1, and the bracket 421 forms a second projection area S2 in the reference plane along the vibration direction z1, and the area ratio of the overlapping part S12 of the first projection area S1 and the second projection area S2 to the second projection area S2 is greater than or equal to 0.3, for example, 0.35, 0.5 or 0.65.

[0137] If the above-mentioned area ratio is too small, the support jig for the bracket 421 may not be stable enough, thereby reducing the assembly efficiency and assembly accuracy; and if the above-mentioned area ratio is too large, it may interfere with other components or cause the structural strength to deteriorate during the use of the support jig. By reasonably setting the overlapping part S12 of the first projection area S1 and the second projection area S2 and the area ratio of the second projection area S2, the support effect of the support jig on the bracket 421 can be effectively improved, thereby effectively reducing the possibility of deformation of the first vibration transmission plate 45, effectively improving the accuracy of positioning and installation, effectively reducing the difficulty of assembly, and effectively improving assembly efficiency and assembly yield. In addition, by reasonably setting the through hole 4110, the sound in the inner cavity of the movement shell 41 can be extracted to offset the leakage sound generated by at least part of the vibration of the movement shell 41 to reduce the leakage sound, effectively improving the sound transmission effect and sound quality of the speaker assembly 3.

[0138] Optionally, as shown in Figures 15 and 16, the bottom wall 411 is further provided with a mounting hole 4111 arranged adjacent to the inner wall surface of the peripheral side wall 412, and the mounting hole 4111 is spaced apart from the through hole 4110. The mounting hole 4111 is connected to the accommodating space 410. The mounting hole 4111 is configured to allow a support fixture to be inserted from the mounting hole 4111 into the accommodating space 410 and support the bracket 421 when the vibration transmission face-attaching component 43 is assembled and fixed on the bracket 421. By providing the mounting hole 4111, the support for the bracket 421 can be further improved, the accuracy of positioning and installation can be effectively improved, the difficulty of assembly can be effectively reduced, and the assembly efficiency and assembly yield can be effectively improved.

[0139] Optionally, as shown in FIG16 , the overlapping portion S12 between the first projection area S1 formed by the through hole 4110 along the vibration direction z1 in the reference plane and the second projection area S2 formed by the bracket 421 along the vibration direction z1 in the reference plane accounts for an area greater than or equal to 30% of the first projection area S1, the overlapping area between the first projection area S1 and the third projection area S42 formed by the transducer 42 along the vibration direction z1 in the reference plane accounts for an area greater than or equal to 70% of the first projection area S1, and the overlapping area between the projection area formed by the mounting hole 4111 and the through hole 4110 along the vibration direction z1 in the reference plane and the third projection area S42 accounts for an area greater than or equal to 80% of the projection area of ​​the through hole 4110 and the mounting hole 4111. By reasonably setting the above area ratios, the supporting effect of the support fixture on the bracket 421 is effectively improved, thereby effectively reducing the possibility of deformation of the first vibration transmission plate 45, effectively improving the accuracy of positioning and installation, effectively reducing the difficulty of assembly, and effectively improving assembly efficiency and assembly yield.

[0140] Optionally, as shown in Figure 11, the transducer device 42 also includes a magnetic cover 423, which is cylindrical and has a connecting hole 4230 connecting the inner wall and outer wall of the magnetic cover 423 along the radial direction of the magnetic cover 423. The bracket 421 is arranged on the magnetic cover 423 in a molded manner and includes a bracket 421 main body and a connecting part 4213. The bracket 421 main body is at least partially arranged inside the inner wall, the connecting part 4213 is arranged in the connecting hole 4230, and the through hole 4110 is arranged to be opposite to the bracket 421 main body.

[0141] By setting the bracket 421 on the magnetic cover 423 in a molding manner, the assembly process of the bracket 421 and the magnetic cover 423 is simplified, and the assembly effect is effectively improved. By setting the connecting portion 4213 to cooperate with the connecting hole 4230, the connection stability and reliability between the bracket 421 and the magnetic cover 423 are effectively improved. The vibration face assembly 43 is connected to the bracket 421 body to achieve assembly and fixation with the bracket 421. By setting the through hole 4110 to be opposite to the bracket 421 body, it is convenient to provide support force to the support body after the support fixture is inserted, and the support force is relative to the pressing force applied to the support body when installing the vibration face assembly 43, thereby effectively reducing the possibility of deformation of the first vibration plate 45, effectively improving the accuracy of positioning and installation, effectively reducing the difficulty of assembly, and effectively improving assembly efficiency and assembly yield. The molding method can be, for example, injection molding, compression molding, and thermoplastic molding, etc., of course, it can also be other methods.

[0142] Optionally, as shown in Figures 10 and 15, the first vibration transmission plate 45 includes an inner ring fixing portion 451, an outer ring fixing portion 452 and at least two elastic connecting portions 453. The outer ring fixing portion 452 is arranged around the periphery of the inner ring fixing portion 451. At least two elastic connecting portions 453 are connected between the inner ring fixing portion 451 and the outer ring fixing portion 452. The inner ring fixing portion 451 is connected to the bracket 421, and the outer ring fixing portion 452 is connected to the movement housing 41. The radial dimension of the vibration transmission face assembly 43 is larger than the radial dimension of the outer ring fixing portion 452.

[0143] By providing an inner ring fixing portion 451, an outer ring fixing portion 452 and at least two elastic connecting portions 453, an elastic connection between the bracket 421 and the movement housing 41 is achieved. By setting the radial dimension of the vibration-transmitting face-attaching component 43 to be larger than the radial dimension of the outer ring fixing portion 452, the first vibration-transmitting plate 45 is avoided from being exposed to the outside, which is beneficial to improving the structural integrity of the bone conduction speaker 40, facilitating the improvement of the comfort of the earphone 1 in contact with the cheekbone of the user when in use, and effectively reducing the possibility of external debris entering the bone conduction speaker 40, thereby improving the service life of the earphone 1.

[0144] Optionally, as shown in Figures 10 and 15, the vibration face-mounted component 43 includes a vibration plate 431, a soft vibration transmission part 432 and a hard bracket 433, wherein the middle area of ​​the soft vibration transmission part 432 is fixed to the vibration plate 431 in a molding manner, and the edge area of ​​the soft vibration transmission part 432 is fixed to the hard bracket 433 in a molding manner, the vibration plate 431 and the bracket 421 are plugged together along the spacing direction, the hard bracket 433 is connected to the movement housing 41, and the radial dimension of the hard bracket 433 is larger than the radial dimension of the outer ring fixing part 452.

[0145] By fitting and fixing the middle area of ​​the soft vibration transmitting member 432 on the vibration plate 431 in a molding manner, and fixing the edge area of ​​the soft vibration transmitting member 432 on the hard bracket 433 in a molding manner, the fit between the soft vibration transmitting member 432 and the vibration plate 431 and the hard bracket 433 is effectively improved, the connection reliability and stability are effectively improved, the assembly difficulty is effectively reduced, and the assembly process is simplified. The molding method can be, for example, injection molding, compression molding, and thermoplastic molding, and of course other methods can also be used. In addition, the vibration plate 431 and the bracket 421 are plugged together along the spacing direction, and the hard bracket 433 is connected to the movement housing 41. Without affecting the suspension installation of the transducer 42, it is convenient for the bracket 421 to transmit the vibration to the vibration plate 431, and further transmit it to the user, thereby increasing the structural stability and reliability while achieving a good sound transmission effect, and effectively improving the sound quality of the earphone 1.

[0146] Optionally, as shown in Figures 10 and 15, the inner ring fixing portion 451 is configured to be plugged into the bracket 421 and clamped between the bracket 421 and the vibration plate 431. The structure is simple, which facilitates reducing the assembly difficulty and simplifying the assembly process, thereby improving assembly efficiency and assembly yield.

[0147] Optionally, as shown in Figures 10 and 15, the bracket 421 is provided with a first plug hole 4203 and a plurality of first plug pins 4204 on the side facing the inner ring fixing portion 451, and the plurality of first plug pins 4204 surround and are spaced apart on the periphery of the first plug hole 4203, and the inner ring fixing portion 451 is provided with an exposed hole 4501 and a plurality of assembly holes 4502, and the plurality of assembly holes 4502 surround and are spaced apart on the periphery of the exposed hole 4501, and the first plug The hole 4203 is exposed through the exposed hole 4501, and the first connector pin 4204 is inserted into the corresponding assembly hole 4502. The vibration plate 431 is provided with a second connector pin 4310 and a plurality of second connector holes 4311. The plurality of second connector holes 4311 surround and are spaced apart on the periphery of the second connector pin 4310. The second connector pin 4310 is plugged into and matched with the first connector hole 4203, and the first connector pin 4204 is plugged into and matched with the second connector hole 4311.

[0148] By setting the second connector pin 4310 to be plugged into the first connector hole 4203 and the first connector pin 4204 to be plugged into the second connector hole 4311, and setting the exposed hole 4501 to expose the first connector hole 4203, and setting the assembly hole 4502 so that the first connector pin 4204 can be plugged into the second connector hole 4311 through the assembly hole 4502, the connection between the bracket 421, the first vibration transmission piece 45 and the vibration plate 431 is realized, which effectively simplifies the structure, reduces the difficulty of assembly, and is conducive to improving the fixing effect between the bracket 421, the first vibration transmission piece 45 and the vibration plate 431, thereby effectively improving the connection stability.

[0149] Optionally, as shown in Figures 10 and 15, the main body of the bracket 421 is also provided with a third connector pin 4205 located in the first connector hole 4203, and the vibration plate 431 is provided with a third connector hole 4312 located on the second connector pin 4310, and the third connector pin 4205 is plugged into the third connector hole 4312.

[0150] By providing a third connector column 4205 and a third connector hole 4312 that are plug-fitted together, the bracket 421 and the vibration plate 431 are further connected and fixed, thereby effectively improving the connection stability and reliability.

[0151] As shown in FIG3 , in some embodiments, the earphone 1 may include a speaker assembly 3 and a wearing assembly 2 connected to the speaker assembly 3. The wearing assembly 2 may be used to position the speaker assembly 3 in the facial area in front of the user's tragus when worn. The front of the tragus refers to the side of the tragus facing the nose. The speaker assembly 3 may be placed in the facial area in front of the user's tragus and fit the user's facial area. The speaker assembly 3 is used to convert an electrical signal containing relevant audio information into a sound wave signal and a vibration signal.

[0152] In some embodiments, as shown in FIG2 , the speaker assembly 3 may include a bone conduction speaker 40. The bone conduction speaker 40 is configured to convert electrical signals containing audio information into vibration signals. The bone conduction speaker 40 may fit snugly against the user's face in front of the tragus, enabling the bone conduction speaker 40 to transmit the vibration signals containing the audio information to the user.

[0153] 4 , the bone conduction speaker 40 may include a transducer 42. The transducer 42 is a main device in the bone conduction speaker 40 that converts electrical signals into vibration signals.

[0154] As shown in FIG17 , the transducer device 42 may include a clamp 427 and a magnetic circuit system 426. The magnetic circuit system 426 may include at least two annular magnets 4261. The at least two annular magnets 4261 may be stacked one on top of the other along an axial direction Ax2 of the magnetic circuit system 426, with adjacent annular magnets 4261 disposed with opposite polarities along the axial direction Ax2. The clamp 427 may be configured to clamp two outer end surfaces of the magnetic circuit system 426 facing away from each other along the axial direction Ax2. The axial direction Ax2 of the transducer device 42 is indicated by the arrow Ax2 in FIG17 .

[0155] Specifically, after the transducer device 42 is energized, the magnetic circuit system 426 can generate vibration along the axial direction Ax2 of the transducer device 42 under the action of the electric field and the magnetic field of at least two annular magnets 4261, thereby driving the vibration-transmitting face-attaching component 43 to vibrate.

[0156] Adjacent annular magnets 4261 are arranged with polarities repelling each other along the axial direction Ax2, which enables the entire magnetic circuit system 426 to obtain a larger magnetic field and enhance the magnetic field effect of the magnetic gap. However, due to their magnetic repulsion, adjacent annular magnets 4261 are prone to mutual repulsion and displacement. Moreover, when the magnetic circuit system 426 vibrates, at least two annular magnets 4261 also produce axial movement Ax2 during the vibration process. Therefore, at least two annular magnets 4261 may be prone to displacement whether in motion or at rest, thereby easily causing the internal components of the transducer device 42 to loosen.

[0157] Optionally, as shown in Figure 17, the clamp 427 can be configured to clamp the two sides of at least two annular magnets 4261 that are opposite to each other along the axial direction Ax2. Therefore, the clamp 427 can fix the at least two annular magnets 4261 on the two sides of the at least two annular magnets 4261 that are opposite to each other, so as to reduce the situation where the at least two annular magnets 4261 are displaced along the axial direction Ax2 due to polar repulsion, vibration, etc.

[0158] Therefore, clamps 427 are provided on the two outer end faces of the magnetic circuit system 426 that are away from each other, so as to limit the relative displacement between at least two annular magnets 4261, so that the transducer device 42 is not prone to loosening and causing failure of its conversion function, thereby improving the structural stability, tightness and reliability of the transducer device 42 and increasing the service life of the transducer device 42.

[0159] In some embodiments, as shown in Figures 17 and 18, the magnetic circuit system 426 may further include at least three annular magnetic conductive plates 4264, which are stacked with at least two annular magnets 4261 along the axial direction Ax2 of the magnetic circuit system 426. The number of annular magnetic conductive plates 4264 may correspond to the number of annular magnets 4261. The annular magnetic conductive plates 4264 and the annular magnets 4261 are overlapped and separated by the annular magnetic conductive plates 4264, with each annular magnet 4261 being sandwiched between two adjacent annular magnetic conductive plates 4264.

[0160] For example, there can be three annular magnetic conductive plates 4264 and two annular magnets 4261. Two annular magnetic conductive plates 4264 are disposed along the axial direction Ax2 on either side of the two annular magnets 4261, and another annular magnetic conductive plate 4264 is disposed between the two annular magnets 4261. This arrangement allows the annular magnetic conductive plates 4264 to better secure the at least two annular magnets 4261 and allows the magnetic flux lines of the magnets to be concentrated within the magnetic gap between the annular magnets 4261, thereby enhancing the effect of the magnetic field in the magnetic gap and improving the sensitivity of the magnetic circuit system 426.

[0161] In some embodiments, as shown in Figures 18 and 19, the clamp 427 may include a first abutting portion 4271, a second abutting portion 4272 and a connecting portion 4273. The first abutting portion 4271 can abut against the outer end surface of one side of the magnetic circuit system 426, the second abutting portion 4272 can abut against the outer end surface of the other side of the magnetic circuit system 426, and the connecting portion 4273 can be connected between the first abutting portion 4271 and the second abutting portion 4272.

[0162] Among them, the first abutment portion 4271 and the second abutment portion 4272 are arranged along the axial direction Ax2 of the transducer device 42, and abut against the two end faces of the magnetic circuit system 426 respectively, so as to be fixed to the magnetic circuit system 426 on the axial direction Ax2 of the transducer device 42, thereby limiting the relative displacement between at least two annular magnets 4261.

[0163] Optionally, the first abutting portion 4271 or the second abutting portion 4272 may abut against the end surface of the annular magnetic conductive plate 4264 along the axial direction Ax2 of the transducer device 42 , so as to fix at least two annular magnets 4261 through the annular magnetic conductive plate 4264 .

[0164] The connecting portion 4273 may be connected between the first abutting portion 4271 and the second abutting portion 4272 to further enhance the restrictive effect of the clip 427 .

[0165] With this arrangement, the structure of the clip 427 is simple and easy to manufacture. The use of the clip 427 can also simplify the structure of the transducer 42. Moreover, the transducer 42 can achieve the function of stabilizing at least two annular magnets 4261 in the magnetic circuit system 426 by using a simple clip 427.

[0166] For example, in some embodiments, as shown in Figures 18 and 19, the first abutting portion 4271, the second abutting portion 4272, and the connecting portion 4273 are formed by bending a sheet material and are arranged in a U-shape. Using a sheet material bending method can facilitate the layer formation of the clip 427 and simplify the manufacturing process of the transducer device 42. Furthermore, the U-shape of the clip 427 can further simplify the structure of the clip 427 and make it easier to bend and form. For example, the clip 427 can be stamped.

[0167] In some embodiments, the clip 427 can be a non-magnetic material. In the transducer 42, the magnetic field of the magnetic circuit system 426 and the electric field of the internal components can work together to cause the transducer 42 to vibrate. Therefore, setting the clip 427 as a non-magnetic material can reduce the interference of the clip 427 with the magnetic field, making the position of the transducer 42 more stable and not eccentric, thereby making the transducer 42 more stable and ensuring the vibration effect of the transducer 42.

[0168] In some embodiments, as shown in Figures 18 and 19, the number of clamps 427 can be at least two, and the at least two clamps 427 are spaced apart circumferentially along the magnetic circuit system 426. In some embodiments, the at least two clamps 427 are evenly spaced apart along the magnetic circuit system 426, thereby limiting the relative displacement between the at least two annular magnets 4261 while ensuring that the center of gravity of the transducer device 42 is located on the vibration axis, thereby ensuring the stability of the vibration of the transducer device 42. For example, as shown in the figure, the number of clamps 427 can be two, and the two clamps 427 can be arranged opposite each other and along the radial direction of the transducer device 42 to clamp the magnetic circuit system 426 on both sides of the transducer device 42, while ensuring that the center of gravity of the transducer device 42 is located on the vibration axis.

[0169] Increasing the number of the clips 427 can strengthen the fixing effect on the at least two annular magnets 4261 and can also make the force on the magnetic circuit system 426 more balanced, thereby improving the structural stability and firmness of the transducer device 42.

[0170] In some embodiments, as shown in Figures 17 and 19, the transducer device 42 may further include a bracket 421, a coil 422, and a vibration-transmitting plate 424. The vibration-transmitting plate 424 may connect the magnetic circuit system 426 and the bracket 421 to elastically suspend the magnetic circuit system 426 on the periphery of the bracket 421. The coil 422 may be arranged on the bracket 421 and located inside the magnetic circuit system 426. The connecting portion 4273 may be arranged on the outside of the magnetic circuit system 426.

[0171] The bracket 421 may be disposed inside the at least two annular magnets 4261. The coil 422 may be wound radially around the bracket 421 and fixed thereto. The coil 422 corresponds to the at least two annular magnets 4261, so that when power is applied to the coil 422, its electric field can interact with the magnetic field of the annular magnets 4261.

[0172] Specifically, the current passing through the coil 422 can be controlled so that an electrical signal containing relevant audio information passes through the coil 422. Since the coil 422 is opposite to the at least two annular magnets 4261 in the radial direction of the transducer device 42, the electric field of the coil 422 and the magnetic field of the at least two annular magnets 4261 can interact with each other, thereby causing the magnetic circuit system 426 and the bracket 421 on which the coil 422 is located to move relative to each other.

[0173] In the embodiment of the present application, the connection portion 4273 is disposed on the outside of the magnetic circuit system 426. In other words, the clip 427 is disposed on the outer surface of the magnetic circuit system 426 facing away from the bracket 421. This arrangement can reduce the space occupied by the bracket 421 between the magnetic circuit system 426 and the coil 422, thereby making the structure more compact and strengthening the interaction between the magnetic field of the magnetic circuit system 426 and the electric field of the coil 422. Furthermore, this positioning of the clip 427 also facilitates its assembly on the magnetic circuit system 426, which can reduce the difficulty of manufacturing the transducer device 42.

[0174] Optionally, the number of the vibration transmitting plates 424 can be two, and the two vibration transmitting plates 424 can be arranged in sequence along the axial direction Ax2 of the transducer device 42. The two vibration transmitting plates 424 are arranged on both sides of the bracket 421 and the magnetic circuit system 426 along the axial direction Ax2 to connect the bracket 421 and the magnetic circuit system 426 on both sides of the axial direction Ax2. When the magnetic circuit system 426 generates mutual movement in the axial direction Ax2 under the interaction of the coil 422 on the bracket 421, the vibration transmitting plates 424 can drive the bracket 421 to move in the axial direction Ax2. The provision of two vibration transmitting plates 424 to drive the bracket 421 to move in the axial direction Ax2 or to restore the bracket 421 can strengthen the elastic fixing effect between the bracket 421 and the magnetic circuit system 426, so that the structure of the transducer device 422 is more stable.

[0175] In some embodiments, as shown in FIG. 19 and FIG. 20 , the vibration transmission piece 424 may include an inner ring fixing portion 4241 , an outer ring fixing portion 4242 , and at least two elastic connection portions 4243 .

[0176] The outer ring fixing portion 4242 can be disposed around the periphery of the inner ring fixing portion 4241. At least two elastic connecting portions 4243 are connected between the inner ring fixing portion 4241 and the outer ring fixing portion 4242. The inner ring fixing portion 4241 is connected to the bracket 421, and the outer ring fixing portion 4242 is connected to the outer end surface of the magnetic circuit system 426. When the magnetic circuit system 426 vibrates relative to the bracket 421, the magnetic circuit system 426 can drive the outer ring fixing portion 4242 to vibrate. The outer ring fixing portion 4242 is connected to the inner ring fixing portion 4241 via the at least two elastic connecting portions 4243, so that the vibration transmission plate 424 can elastically constrain the relative motion between the magnetic circuit system 426 and the coil 422. When the transducer device 42 vibrates, the vibration transmission plate 424 can confine the bracket 421 within the magnetic circuit system 426, thereby maintaining stable operation of the transducer device 42.

[0177] Further, as shown in Figure 20, the outer ring fixing portion 4242 can be provided with a notch 4240, the outer end surface of the magnetic circuit system 426 is exposed from the notch 4240, and the first abutment portion 4271 and / or the second abutment portion 4272 is configured to abut the exposed portion of the outer end surface of the magnetic circuit system 426 exposed from the notch 4240.

[0178] In which, the exposed part of the magnetic circuit system 426 exposed from the notch 4240 faces the axial direction Ax2 of the transducer device 42, so that the first abutment portion 4271 and / or the second abutment portion 4272 can be arranged in the notch 4240 on the axial direction Ax2 of the transducer device 42 and abut the exposed part of the magnetic circuit system 426.

[0179] In some embodiments, as shown in Figures 20 and 21, the number of notches 4240 may be at least two, and they are arranged at intervals along the circumference of the outer ring fixing portion 4242, each notch 4240 is respectively connected to the outer edge of the outer ring fixing portion 4242, and in the circumferential direction of the outer ring fixing portion 4242, the total width Wd1 of at least two notches 4240 on the outer edge of the outer ring fixing portion 4242 and the circumference C of the outer edge of the outer ring fixing portion 4242 may be less than or equal to 0.08 to 0.25.

[0180] Optionally, the circumference C of the outer edge of the outer ring fixing portion 4242 may be between 35 mm and 65 mm. The total width Wd1 of the at least two notches 4240 on the outer edge of the outer ring fixing portion 4242 may be between 5 mm and 16 mm. For example, the circumference C of the outer edge of the outer ring fixing portion 4242 may be 40.8 mm, 57.3 mm, or 64.5 mm, and the total width Wd1 of the at least two notches 4240 on the outer edge of the outer ring fixing portion 4242 may be 5.6 mm, 10.7 mm, or 15.5 mm. The ratio of the total width Wd1 of the at least two notches 4240 on the outer edge of the outer ring fixing portion 4242 to the circumference C of the outer edge of the outer ring fixing portion 4242 may be equal to 0.13, 0.18, or 0.24.

[0181] Of course, in other embodiments, the ratio of the total width Wd1 of the at least two notches 4240 on the outer edge of the outer ring fixing portion 4242 to the circumference C of the outer edge of the outer ring fixing portion 4242 can be 0.14, 0.17, 0.21, etc.

[0182] If the ratio of the total width Wd1 to the perimeter C is too large, the total width Wd1 of the notch will be too large, which will affect the structural strength of the vibration transmission piece 424. Therefore, setting the above-mentioned reasonable ratio range can ensure the structural strength of the vibration transmission piece 424, making it less likely for the vibration transmission piece 424 to deform or break during vibration of the transducer device 42. It can also enable the clip 427 to more effectively secure the magnetic circuit system 426 when it contacts the exposed portion of the magnetic circuit system 426 through the notch 4240, thereby preventing the magnetic circuit system 426 from loosening and causing the conversion function of the transducer device 42 to fail.

[0183] Among them, at least two notches 4240 can correspond to the first abutment portion 4271 and / or the second abutment portion 4272 of at least two clips 427, and the first abutment portion 4271 and / or the second abutment portion 4272 of at least two clips 427 can be fixed to the part of the magnetic circuit system 426 exposed from the notches 4240 through at least two notches 4240.

[0184] For example, there may be two clips 427, and the outer ring fixing portion 4242 may be provided with two notches 4240 corresponding to each clip 427. The two notches 4240 may be arranged along the axial direction Ax2 of the transducer device 42, with one notch 4240 corresponding to one outer end surface of the exposed magnetic circuit system 426, and the other notch 4240 corresponding to the other outer end surface of the exposed magnetic circuit system 426. The two exposed portions of the two exposed magnetic circuit systems 426 may correspond to the first abutting portion 4271 and the second abutting portion 4272, and the first abutting portion 4271 and the second abutting portion 4272 may abut the exposed portion of the outer end surface of the magnetic circuit system 426 exposed through the notch 4240.

[0185] The structure of the clip 427 and the vibration transmission piece 424 is arranged in such a coordinated manner, which not only makes the structure of the energy conversion device 42 more compact, but also reduces the size of the energy conversion device 42 in the axial direction Ax2.

[0186] In some embodiments, as shown in Figures 19 and 22, the transducer device 42 may further include a magnetic cover 423, which is cylindrical and connected to the bracket 421. The coil 422 may be wound around the periphery of the magnetic cover 423, and the inner ring fixing portion 4241 is connected to the outer end surface of the magnetic cover 423. The vibration transmission piece 424 may be made of metal, specifically a magnetic metal part.

[0187] The magnetic shield 423 has a certain magnetic conductivity and is used to constrain the magnetic field in the transducer device 42. Specifically, the magnetic shield 423 can form a magnetic path with the vibration transmission plate 424 and the magnetic circuit system 426. The coil 422 is wound around the outside of the magnetic shield 423 and is positioned in the middle of the magnetic path. When the coil 422 is energized, the electric field of the coil 422 can interact with the magnetic field of the magnetic path, allowing the magnetic circuit system 426 and the coil 422 on the bracket 421 to move axially in the direction Ax2, thereby causing the transducer device 42 to vibrate.

[0188] In some embodiments, as shown in FIG. 22 , the inner ring fixing portion 4241 may be welded and fixed to the outer end surface of the magnetic conductive cover 423 , and the outer ring fixing portion 4242 may be welded and fixed to the outer end surface of the magnetic circuit system 426 .

[0189] Optionally, the outer ring fixing portion 4242 can be welded and fixed to the outer end surface of the annular magnetic conductive plate 4264, and the annular magnetic conductive plate 4264 can be fixed to the annular magnet 4261 so that the annular magnet 4261 can drive the movement between the outer ring fixing portion 4242 through the annular magnetic conductive plate 4264 when moving.

[0190] Welding can strengthen the connection between the vibration transmission piece 424 and the magnetic circuit system 426 and the magnetic cover 423, thereby strengthening the magnetic flux effect between the vibration transmission piece 424 and the magnetic circuit system 426 and the magnetic cover 423 and improving the structural stability of the transducer device 42.

[0191] As shown in Figures 22 and 23, in some embodiments of the present application, the outer diameter R1 of the annular magnetic conductive plate 4264 can be larger than the outer diameter R2 of the annular magnet 4261, and the inner diameter r1 of the annular magnetic conductive plate 4264 can be smaller than the inner diameter r2 of the annular magnet 4261.

[0192] As shown in FIG23 , the axis of the magnetic circuit system 426 can be represented by line ax2 in FIG23 , and the axial direction Ax2 of the magnetic circuit system 426 can be represented by line ax2 in FIG23 . The outer diameter R1 of the annular magnetic plate 4264 can be represented by distance R1 in FIG23 , and the outer diameter R2 of the annular magnet 4261 can be represented by distance R2 in FIG23 , where R1 is greater than R2 . The inner diameter r1 of the annular magnetic plate 4264 can be represented by r1 in FIG23 , and the inner diameter r2 of the annular magnet 4261 can be represented by r2 in FIG23 , where r1 is less than r2 .

[0193] This arrangement allows the annular magnet 4261 to be radially smaller than the annular magnetic conductive plate 4264. The annular magnet 4261 is positioned in the middle of the annular magnetic conductive plate 4264, allowing the annular magnet 4261 to move within a small range within the corresponding portion of the annular magnetic conductive plate 4264 that extends beyond the annular magnet 4261. Furthermore, this arrangement allows the annular magnetic conductive plate 4264 to be machined with greater precision than the annular magnet 4261. Therefore, when adding annular magnet 4261, the annular magnetic conductive plate 4264 can be used for positioning, facilitating accurate addition and assembly of the annular magnet 4261 and improving the positioning accuracy of the annular magnet 4261.

[0194] In some embodiments, as shown in FIG23 , the ratio of the difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 to the radial width of the annular magnet 4261 may be between 0.002 and 0.007, that is, (R1-R2) / (R2-r2)=0.002-0.007.

[0195] The difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 is the distance from the edge of the outer diameter R1 of the annular magnetic conductive plate 4264 to the outer diameter R2 of the annular magnet 4261 .

[0196] Specifically, if the above ratio is too large, the annular magnet 4261 can have a large radial motion amplitude. Therefore, when the magnetic circuit system 426 vibrates, the annular magnet 4261 is easily displaced in the radial direction relative to the annular magnetic plate 4264, thereby causing the transducer 42 to be eccentric, affecting the vibration effect of the transducer 42. If the above ratio is too small, the annular magnet 4261 is difficult to position using the annular magnetic plate 4264, increasing the difficulty of assembling the transducer 42. Therefore, setting the above ratio within a reasonable range can improve the positioning accuracy between the annular magnet 4261 and the annular magnetic plate 4264, while also reducing the radial motion amplitude of the annular magnet 4261, thereby further fixing the position of the annular magnet 4261 in the transducer 42.

[0197] For example, the ratio of the difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 to the radial width of the annular magnet 4261 may be 0.003, 0.005, 0.006, etc.

[0198] In some embodiments, the difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 may be between 0.02 mm and 0.08 mm.

[0199] For example, the difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 may be 0.03 mm, 0.05 mm, 0.07 mm, etc.

[0200] Similarly, if the difference between the outer diameter R1 of the annular magnetic plate 4264 and the outer diameter R2 of the annular magnet 4261 is too large, the annular magnet 4261 may easily shift radially relative to the annular magnetic plate 4264, causing the transducer 42 to become eccentric, thereby affecting the vibration effect of the transducer 42. If the difference is too small, the annular magnet 4261 may be difficult to position using the annular magnetic plate 4264, increasing the difficulty of assembling the transducer 42.

[0201] Therefore, the difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 is set within the above-mentioned reasonable difference range, so that the outer diameter R1 of the annular magnetic conductive plate 4264 can exceed the outer diameter R2 of the annular magnet 4261, and the accuracy of the annular magnetic conductive plate 4264 is higher than the accuracy of the annular magnet 4261, so as to improve the positioning accuracy of the annular magnet 4261, and also can reduce the size of the annular magnet 4261 and the annular magnetic conductive plate 4264 in the radial direction of the magnetic circuit system 426, so as to reduce the size of the transducer device 422.

[0202] In some embodiments, the ratio of the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 to the radial width of the annular magnet 4261 may be between 0.003 and 0.009, that is, (r2-r1) / (R2-r2)=0.003-0.009.

[0203] For example, the ratio of the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 to the radial width of the annular magnet 4261 may be 0.004, 0.006, 0.008, etc.

[0204] Specifically, the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 is the distance that the edge of the inner diameter r1 of the annular magnetic conductive plate 4264 exceeds the inner diameter r2 of the annular magnet 4261, that is, the difference obtained by subtracting r1 from r2.

[0205] If the ratio of the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 to the radial width of the annular magnet 4261 is too large, the annular magnet 4261 will be too small in the radial direction, thereby reducing the magnetic field strength of the annular magnet 4261 and causing the annular magnet 4261 to shift significantly in the radial direction. If the ratio of the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 to the radial width of the annular magnet 4261 is too small, the annular magnet 4261 will be difficult to assemble with the annular magnetic conductive plate 4264.

[0206] Therefore, setting the ratio of the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic plate 4264 to the radial width of the annular magnet 4261 to the above-mentioned reasonable value can improve the positioning accuracy between the annular magnet 4261 and the annular magnetic plate 4264, so as to further fix the position of the annular magnet 4261 in the transducer device 42, and at the same time reduce the amplitude of the radial movement of the annular magnet 4261, and ensure the magnetic field strength of the annular magnet 4261.

[0207] In some embodiments, the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic plate 4264 can be between 0.02 and 0.08 mm. For example, the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic plate 4264 can be 0.03 mm, 0.05 mm, 0.07 mm, etc.

[0208] Similarly, if the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 is too large, the radial dimension of the annular magnet 4261 will be too small, thereby reducing the magnetic field strength of the annular magnet 4261. The annular magnet 4261 will also be prone to significant radial displacement, resulting in unstable vibration of the transducer device 42. If the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 is too small, it will be difficult to assemble the annular magnet 4261 with the annular magnetic conductive plate 4264.

[0209] Therefore, by setting the difference between the inner diameter r2 of the annular magnet 4261 and the inner diameter r1 of the annular magnetic conductive plate 4264 within the aforementioned reasonable range, the precision of the annular magnetic conductive plate 4264 can be increased relative to that of the annular magnet 4261, thereby improving the positioning accuracy of the annular magnet 4261 and facilitating assembly of the annular magnet 4261. Furthermore, this arrangement ensures the magnetic field strength of the annular magnet 4261, making it less susceptible to significant radial displacement, thereby ensuring the vibration effect of the transducer device 42. It also reduces the size of the annular magnet 4261 in the radial direction of the magnetic circuit system 426, thereby reducing the size of the transducer device 42.

[0210] In some embodiments, the axial thickness Hd3 of the annular magnetic conductive plate 4264 can be less than the axial thickness Hd2 of the annular magnet 4261. As shown in FIG23 , the axial thickness Hd3 of the annular magnetic conductive plate 4264 can be represented by the thickness Hd3 in FIG23 , and the axial thickness Hd2 of the annular magnet 4261 can be represented by the thickness Hd2 in FIG23 , where Hd3 is less than Hd2.

[0211] Since the annular magnet 4261 primarily functions as a magnetic field generator, the axial thickness Hd2 of the annular magnet 4261 is subject to certain requirements to enable the annular magnet 4261 to generate a corresponding vibration signal. The annular magnetic conductive plate 4264 primarily functions to improve the positioning accuracy of the annular magnet 4261, facilitating its positioning and installation. Therefore, the axial thickness Hd3 of the annular magnetic conductive plate 4264 is set to be smaller than the axial thickness Hd2 of the annular magnet 4261. This prevents the annular magnetic conductive plate 4264 from interfering with the magnetic field of the annular magnet 4261, thereby further ensuring the vibration effect of the transducer device 42.

[0212] Moreover, setting the annular magnetic conductive plate 4264 to have a smaller axial thickness Hd3 can also reduce the size of the transducer device 42 in the axial direction Ax2, and can also improve the positioning accuracy of the annular magnet 4261, so as to facilitate the positioning and installation of the annular magnet 4261.

[0213] In some embodiments, as shown in FIG. 19 , the annular magnet 4261 may include a first annular magnet 4262 and a second annular magnet 4263 , and the annular magnetic conductive plate 4264 may include a first annular magnetic conductive plate 4265 , a second annular magnetic conductive plate 4266 , and a third annular magnetic conductive plate 4267 .

[0214] The first annular magnetic conductive plate 4265 can be clamped between the first annular magnet 4262 and the second annular magnet 4263 along the axial direction Ax2, the second annular magnetic conductive plate 4266 can be arranged on the outer end surface of the first annular magnet 4262 facing away from the second annular magnet 4263, and the third annular magnetic conductive plate 4267 can be arranged on the outer end surface of the second annular magnet 4263 facing away from the first annular magnet 4262.

[0215] The first annular magnet 4262 and the second annular magnet 4263 may be two magnets with opposite polarities. The opposite polarities of the first annular magnet 4262 and the second annular magnet 4263 can concentrate the magnetic induction lines in the magnetic gap between the first annular magnet 4262 and the second annular magnet 4263, thereby enhancing the effect of the magnetic field in the magnetic gap and thus improving the sensitivity of the magnetic circuit system 426.

[0216] When the transducer device 42 is energized, the magnetic fields of the first annular magnet 4262 and the second annular magnet 4263 can cause the first annular magnet 4262 and the second annular magnet 4263 to move under the influence of the electric field. The first annular magnetic conductive plate 4265, the second annular magnetic conductive plate 4266, and the third annular magnetic conductive plate 4267 can constrain the magnetic fields of the first annular magnet 4262 and the second annular magnet 4263, thereby concentrating the magnetic fields and increasing the interaction between the magnetic and electric fields, thereby enhancing the vibration effect of the transducer device 42. Furthermore, positioning the first annular magnet 4262 between the second annular magnet 4263 and the first annular magnetic conductive plate 4265 allows the second annular magnet 4263 and the first annular magnetic conductive plate 4265 to more precisely position and secure the first annular magnet 4262 in the axial direction Ax2. Furthermore, the second annular magnet 4263 is disposed between the third annular magnetic conductive plate 4267 and the first annular magnetic conductive plate 4265 , so that the third annular magnetic conductive plate 4267 and the first annular magnetic conductive plate 4265 can more accurately position and fix the second annular magnet 4263 in the axial direction Ax2.

[0217] In some embodiments, as shown in FIG. 17 and FIG. 19 , the coil 422 is arranged to overlap with the first annular magnetic conductive plate 4265 along the axial direction Ax2.

[0218] Specifically, coil 422 and annular magnet 4261 are radially aligned. Coil 422 can be energized to allow an electrical signal containing audio information to pass through coil 422. The electric field generated by coil 422 acts on the magnetic field of annular magnet 4261, thereby causing relative movement between annular magnet 4261 and coil 422. Because annular magnet 4261 is fixed to annular magnetic conductive plate 4264, annular magnet 4261 can cause annular magnetic conductive plate 4264 to vibrate in unison.

[0219] 17 and 19 , the outer ring fixing portion 4242 is connected to the outer end surface of the second annular magnetic conductive plate 4266 or the third annular magnetic conductive plate 4267, and the inner ring fixing portion 4241 is connected to the outer end surface of the magnetic conductive cover 423. The vibration transmission plate 424 is connected to the second annular magnetic conductive plate 4266 or the third annular magnetic conductive plate 4267 via the outer ring fixing portion 4242, and is further connected to the first annular magnet 4262 or the second annular magnet 4263 via the second annular magnetic conductive plate 4266 or the third annular magnetic conductive plate 4267.

[0220] Optionally, the vibration transmission piece 424 may be a magnetic conductor, which can limit the magnetic field of the transducer device 42, facilitate the magnetic field to converge toward the coil 422, increase the magnetic field strength at the coil 422, and thus enhance the vibration effect of the transducer device 42. Furthermore, the coil 422 can be positioned in the middle of the magnetic path, so that when the coil 422 is energized, the electric field generated by the coil 422 interacts with the magnetic path, thereby causing the coil 422 and the magnetic path system 426 to move relative to each other, thereby enabling the transducer device 42 to achieve conversion between electrical energy and mechanical vibration.

[0221] When the magnetic circuit system 426 and the coil 422 stop vibrating, at least two elastic connecting parts 4243 can also elastically restore the inner ring fixing part 4241, so that the bracket 421 and the magnetic conductive cover 423 can also return to their original positions relative to the magnetic circuit system 426.

[0222] Optionally, the number of the elastic connection parts 4243 may be four. The four elastic connection parts 4243 can make the force on the vibration transmission piece 424 more uniform, thereby improving the structural stability of the vibration transmission piece 424.

[0223] In some embodiments, as shown in FIG. 17 and FIG. 19 , the clamp 427 may be configured to clamp outer end surfaces of the second annular magnetic conductive plate 4266 and the third annular magnetic conductive plate 4267 along the axial direction Ax2.

[0224] As shown in Fig. 2, in some embodiments, the speaker assembly 3 may further include an air conduction speaker 50. The air conduction speaker 50 can convert an electrical signal containing relevant audio information into a sound wave signal.

[0225] Specifically, the air conduction speaker 50 is used to provide air-conducted sound in a first frequency band, and the bone conduction speaker 40 is used to provide bone-conducted sound in a second frequency band, which is at least partially higher than the first frequency band. In other words, the air conduction speaker 50 is used to provide sound in the lower frequency band, while the bone conduction speaker 40 is used to enhance the sound in the higher frequency band. This arrangement can enhance the sound enhancement effect of the speaker assembly 3, making low-frequency sounds and high-frequency sounds clearer.

[0226] In some embodiments, as shown in Figures 24 and 25, the bone conduction speaker 40 may include a movement housing 41, a first vibration transmission plate 45 and a transducer device 42. The first vibration transmission plate 45 connects the movement housing 41 and the transducer device 42 to suspend the transducer device 42 in the movement housing 41.

[0227] The transducer 42 is the primary device within the bone conduction speaker 40 that converts electrical signals into vibration signals. The transducer 42 can be positioned within the housing 41, which can secure the transducer 42 relative to the housing. The first vibration transmitter 45 is designed to confine the transducer 42 to the housing 41 during mechanical vibration, preventing it from falling out.

[0228] In some embodiments, as shown in Figure 25, the transducer device 42 may also include a bracket 421, a coil 422, a magnetic circuit system 426 and a second vibration transmission plate 424, the second vibration transmission plate 424 connects the magnetic circuit system 426 and the bracket 421 to elastically suspend the magnetic circuit system 426 on the periphery of the bracket 421, and the coil 422 is arranged on the bracket 421 and is located inside the magnetic circuit system 426.

[0229] Optionally, the first vibration transmitting plate 45 may be non-magnetic, and the second vibration transmitting plate 424 may be magnetic. The first vibration transmitting plate 45 may be made of, for example, a non-magnetic metal material such as stainless steel or copper, or any other non-metallic material that meets the requirements. The second vibration transmitting plate 424 may be made of a metal material having magnetic properties, such as a material containing metal elements such as iron, cobalt, or nickel.

[0230] Since the primary function of the first vibration transmitting plate 45 is to secure the transducer device 42 within the movement housing 41, configuring the first vibration transmitting plate 45 as a non-magnetic conductive material prevents the first vibration transmitting plate 45 from attracting the magnetic circuit system 426 and causing eccentricity, thereby reducing the effect of the first vibration transmitting plate 45 on the vibration effect of the transducer device 42. Furthermore, due to its elasticity, the first vibration transmitting plate 45 can suspend the transducer device 42 within the movement housing 41, thereby reducing the transmission of vibration generated by the transducer device 42 to the movement housing 41, thereby reducing vibration generated by the movement housing 41 and, consequently, reducing sound leakage.

[0231] The non-magnetic first vibration transmission piece 45 is configured as a non-magnetic conductor, which stabilizes the position of the transducer 42 and prevents eccentricity, thereby making the transducer 42 more stable and generating more stable vibrations. Furthermore, the second vibration transmission piece 424 is configured as a magnetic conductor, which allows it to constrain the magnetic field in the transducer 42 and facilitates the convergence of the magnetic field toward the coil 422, thereby increasing the magnetic field strength at the coil 422 and thus enhancing the vibration effect of the transducer 42.

[0232] In some embodiments, as shown in FIG. 26 , the first vibration transmission piece 45 may have a major axis LD1 and a minor axis SD1 that are perpendicular to each other. The dimension of the first vibration transmission piece 45 along the major axis LD1 may be greater than the dimension along the minor axis SD1. The elastic modulus of the first vibration transmission piece 45 along the major axis LD1 may be set to be greater than 15,000 N / m, and / or the elastic modulus along the minor axis SD2 may be set to be greater than 6,500 N / m.

[0233] Alternatively, the elastic modulus of the first vibration transmitting plate 45 can be calculated using Hooke's law of the material. For example, when measuring the elastic modulus of the first vibration transmitting plate 45 along the longitudinal direction LD1, one end of the first vibration transmitting plate 45 along the longitudinal direction LD1 can be fixed, and a weight can be attached to the other end along the longitudinal direction LD1. After the deformation of the first vibration transmitting plate 45 along the longitudinal direction LD1 stabilizes, the displacement of the weighted end can be measured. The elastic modulus of the first vibration transmitting plate 45 along the longitudinal direction LD1 can then be calculated based on the mass of the weight and the displacement of the weighted end of the first vibration transmitting plate 45. The elastic modulus of the first vibration transmitting plate 45 along the minor axis direction SD2 can also be measured and calculated using the above method.

[0234] The long axis direction LD1 of the first vibration transmission piece 45 can be indicated by the arrow direction LD1 in FIG. 26 , and the dimension of the first vibration transmission piece 45 along the long axis direction LD1 can be indicated by the length ld1 . The short axis direction SD1 of the first vibration transmission piece 45 can be indicated by the direction SD1 in FIG. 26 , and the dimension of the first vibration transmission piece 45 along the short axis direction SD1 can be indicated by the length sd1 .

[0235] If the elastic modulus along the long axis LD1 and short axis SD1 is too small, the first vibration transmitting plate 45 may be easily deformed in the long axis LD1 and / or short axis SD1, resulting in positional deviation and unstable vibration of the transducer 42, and thus easily causing noise to be generated in the bone conduction speaker 40. However, setting the elastic modulus along the long axis LD1 and / or short axis SD1 of the first vibration transmitting plate 45 within the above-mentioned numerical range can provide the first vibration transmitting plate 45 with greater stiffness in the long axis LD1 and / or short axis SD1, making it less susceptible to deformation in the corresponding directions. This can reduce lateral deformation of the first vibration transmitting plate 45 caused by the vibration of the transducer 42, reduce noise generated by the speaker assembly 3 due to the vibration of the first vibration transmitting plate 45, and reduce positional deviation of the transducer 42, thereby maintaining the vibration effect of the bone conduction speaker 40 and improving the structural stability of the bone conduction speaker 40.

[0236] For example, the elastic modulus of the first vibration transmission piece 45 along the long axis direction LD1 can be set to 20,000 N / m, 25,000 N / m, or 30,000 N / m. Alternatively, the elastic modulus of the first vibration transmission piece 45 along the short axis direction SD2 can be set to 6,500 N / m, 7,000 N / m, or 8,000 N / m.

[0237] In some embodiments, as shown in FIG26 , the first vibration transmitting plate 45 may include a first inner ring fixing portion 451, a first outer ring fixing portion 452, and at least two first elastic connecting portions 453. The first outer ring fixing portion 452 may be disposed around the periphery of the first inner ring fixing portion 451, and the at least two first elastic connecting portions 453 are connected between the first inner ring fixing portion 451 and the first outer ring fixing portion 452. The first outer ring fixing portion 452 and the movement housing 41, as well as the first inner ring fixing portion 451 and the bracket 421, are respectively assembled and fixed in a plug-in manner.

[0238] When the transducer device 42 mechanically vibrates relative to the movement housing 41, the bracket 421 drives the first inner ring fixing portion 451 to vibrate. This vibration also causes the at least two first elastic connecting portions 453 to elastically deform, confining the transducer device 42 within the movement housing 41. When the transducer device 42 stops vibrating, the at least two first elastic connecting portions 453 return the transducer device 42 to its original position by returning the first inner ring fixing portion 451 to its original position.

[0239] Furthermore, the first outer ring fixing portion 452 and the movement housing 41 and the first inner ring fixing portion 451 and the bracket 421 are assembled and fixed by plugging, which can facilitate the installation of the first vibration transmission plate 45, so as to simplify the installation of the speaker assembly 3, improve the assembly efficiency, and reduce the difficulty of assembling the speaker assembly 3.

[0240] For example, in some embodiments, the number of the first elastic connecting parts 453 can be four, and the four first elastic connecting parts 453 can be evenly arranged on the first outer ring fixing part 452 and the first inner ring fixing part 451. When the first inner ring fixing part 451 is driven to displace, the four first elastic connecting parts 453 can elastically deform together to confine the first inner ring fixing part 451, thereby making the force on the first inner ring fixing part 451 and the first outer ring fixing part 452 more balanced, thereby improving the structural stability of the first vibration transmitting plate 45.

[0241] In some embodiments, as shown in Figures 25 to 27 , the bone conduction speaker 40 may further include a vibration plate 431. A first connector hole 4203 and a plurality of first connector posts 4204 may be provided on the side of the bracket 421 facing the first inner ring fixing portion 451. The plurality of first connector posts 4204 surround and are spaced apart around the periphery of the first connector hole 4203. The first inner ring fixing portion 451 may be provided with an exposed hole 4501 and a plurality of assembly holes 4502. The plurality of assembly holes 4502 surround and are spaced apart around the periphery of the exposed hole 4501. The first connector hole 4203 is exposed through the exposed hole 4501, and the first connector posts 4204 are inserted into corresponding assembly holes 4502.

[0242] A second connector pin 4310 and a plurality of second connector holes 4311 may be provided on the vibration plate 431. The plurality of second connector holes 4311 are arranged around and at intervals on the periphery of the second connector pin 4310. The second connector pin 4310 is plugged into and fitted with the first connector hole 4203, and the first connector pin 4204 is plugged into and fitted with the second connector hole 4311.

[0243] Among them, the vibration plate 431 and the bracket 421 can further fix the first inner ring fixing part 451 between the vibration plate 431 and the bracket 421 by plugging, thereby improving the assembly efficiency, so that the first vibration transmission plate 45 can achieve a stronger connection with the transducer device 42, thereby further improving the structural stability of the bone conduction speaker 40.

[0244] Furthermore, when the transducer device 42 mechanically vibrates, the transducer device 42 can drive the vibration plate 431 to vibrate, so as to transmit the vibration signal to the human body through the vibration plate 431 .

[0245] Furthermore, as shown in Figures 17 to 19, the second vibration transmission plate 424 may include a second inner ring fixing portion 4241, a second outer ring fixing portion 4242, and at least two second outer elastic connecting portions 4243. The second outer ring fixing portion 4242 is disposed around the periphery of the second inner ring fixing portion 4241, and the at least two second outer elastic connecting portions 4243 are connected between the second inner ring fixing portion 4241 and the second outer ring fixing portion 4242. The second outer ring fixing portion 4242 is connected to the outer end surface of the magnetic circuit system 426, and the second inner ring fixing portion 4241 is connected to the outer end surface of the magnetic conductive cover 423.

[0246] In some embodiments, as shown in Figure 19 , the second inner ring fixing portion 4241 can be welded to the outer end surface of the magnetic shield 423, and the second outer ring fixing portion 4242 can be welded to the outer end surface of the magnetic circuit system 426. Welding facilitates the installation of the second vibration transmitting piece 424 to the outer end surfaces of the magnetic circuit system 426 and the magnetic shield 423, simplifying the assembly process of the transducer device 42. Furthermore, welding strengthens the connection between the second vibration transmitting piece 424, the magnetic circuit system 426, and the magnetic shield 423, making the structure of the transducer device 42 more rigid and stable.

[0247] In some embodiments, the coverage of the outer end surface of the magnetic circuit system 426 by the second outer ring fixing portion 4242 can be greater than or equal to 60%, and / or the coverage of the outer end surface of the magnetic cover 423 by the second inner ring fixing portion 4241 can be greater than or equal to 60%.

[0248] The outer end surface of the magnetic circuit system 426 refers to the end surface of the magnetic circuit system 426 facing the axial direction Ax2. The outer end surface of the magnetic circuit system 426 may be perpendicular to the axial direction Ax2 of the transducer device 42.

[0249] Specifically, the coverage of the outer end surface of the magnetic circuit system 426 by the second outer ring fixing portion 4242 may be the overlapping portion between the second outer ring fixing portion 4242 and the outer end surface of the magnetic circuit system 426 in the axial direction Ax2 of the transducer device 42. The coverage of the outer end surface of the magnetic conductive cover 423 by the second inner ring fixing portion 4241 may also be the overlapping portion between the second inner ring fixing portion 4241 and the outer end surface of the magnetic conductive cover 423 in the axial direction Ax2 of the transducer device 42.

[0250] For example, the coverage of the outer end surface of the magnetic circuit system 426 by the second outer ring fixing portion 4242 can be 70%, 80%, or 90%. Alternatively, the coverage of the outer end surface of the magnetic shield 423 by the second inner ring fixing portion 4241 can be 70%, 80%, or 90%.

[0251] If the second outer ring fixing portion 4242 covers the outer end surface of the magnetic circuit system 426 too little, the fixation between the second outer ring fixing portion 4242 and the magnetic circuit system 426 will become unstable, and the magnetic conductivity of the second vibration transmission plate 424 will be reduced, thereby further weakening the effect of enhancing the magnetic field strength of the magnetic gap. Therefore, setting the coverage of the second outer ring fixing portion 4242 on the outer end surface of the magnetic circuit system 426 to the above value can ensure the fixation between the second outer ring fixing portion 4242 and the magnetic circuit system 426, and strengthen the magnetic conductivity of the second vibration transmission plate 424, thereby enhancing the magnetic field strength of the magnetic gap.

[0252] If the second inner ring fixing portion 4241 provides too little coverage of the outer end surface of the magnetic shield 423, the fixing effect between the second inner ring fixing portion 4241 and the outer end surface of the magnetic shield 423 will be poor, and the magnetic field confinement effect of the second vibration transmitting plate 424 will be reduced. Therefore, setting the coverage of the outer end surface of the magnetic circuit system 426 by the second outer ring fixing portion 4242 to the aforementioned value can strengthen the connection between the second vibration transmitting plate 424, the magnetic circuit system 426, and the magnetic shield 423, making it less likely for the second vibration transmitting plate 424 to separate from the magnetic circuit system 426 and the magnetic shield 423 during movement, thereby improving the structural stability of the bone conduction speaker 40 and enhancing the magnetic field confinement effect.

[0253] In some embodiments, as shown in Figures 28 and 29, when observed along the vibration direction of the transducer device 42, at least two second outer elastic connecting portions 4243 may have a first area S3, and the annular area between the outer edge of the second inner ring fixing portion 4241 and the inner edge of the second outer ring fixing portion 4242 may have a second area S4, and the ratio of the first area S3 to the second area S4 may be between 0.2 and 0.7.

[0254] Among them, the first area S3 can be shown as the shaded part in Figure 29, and the second area S4 can be shown as the shaded part in Figure 28.

[0255] Specifically, the at least two second outer elastic connecting portions 4243 are disposed within the annular region between the outer edges of the two inner ring fixing portions and the inner edge of the second outer ring fixing portion 4242. The ratio of the first area S3 to the second area S4 can also represent the area ratio of the at least two second outer elastic connecting portions 4243 to the annular region.

[0256] If the first area S3 is too large, resulting in a large ratio between the first area S3 and the second area S4, the elasticity of the at least two second outer elastic connecting portions 4243 will be reduced, thereby affecting the vibration effect of the transducer device 42. If the first area S3 is too small, resulting in a small ratio between the first area S3 and the second area S4, the magnetic field focusing effect of the at least two second outer elastic connecting portions 4243 will be affected, resulting in a decrease in the magnetic field confinement effect of the second vibration transmission plate 424.

[0257] Therefore, setting the area ratio of the at least two second outer elastic connecting portions 4243 to the annular region between 0.2 and 0.7 allows the at least two second outer elastic connecting portions 4243 to have a certain magnetic field focusing effect, thereby confining the magnetic field. Furthermore, limiting the area of ​​the at least two second outer elastic connecting portions 4243 can further limit the elasticity of the at least two second outer elastic connecting portions 4243, ensuring that the at least two second outer elastic connecting portions 4243 do not affect the vibration effect of the transducer device 42 due to excessive elasticity.

[0258] For example, the first area S3 of at least two second outer elastic connecting parts 4243 may be 12.5, 14 or 15.5 square millimeters, the second area S4 of the annular area between the outer edge of the second inner ring fixing part 4241 and the inner edge of the second outer ring fixing part 4242 may be 33.5, 35 or 36.5 square millimeters, and the ratio of the first area S3 to the second area S4 may be 0.4.

[0259] Of course, in other embodiments, the ratio of the first area S3 to the second area S4 may also be 0.3, 0.5, 0.6, etc.

[0260] In some embodiments, as shown in FIG29 , the second outer elastic connecting portion 4243 may include a first connecting portion 4244, a second connecting portion 4245, and an elastic portion 4246. The first connecting portion 4244 may be connected to the outer edge of the second inner ring fixing portion 4241, the second connecting portion 4245 may be connected to the inner edge of the second outer ring fixing portion 4242, and the elastic portion 4246 may be located between the first connecting portion 4244 and the second connecting portion 4245. The elastic portion 4246 may be spaced apart from the outer edge of the second inner ring fixing portion 4241 and the inner edge of the second outer ring fixing portion 4242, respectively, with the spacing being between 0.1 mm and 0.4 mm. For example, the spacing may be 0.17 mm, 0.26 mm, 0.29 mm, 0.35 mm, or the like. In a plane perpendicular to the axial direction Ax2, the width of the elastic portion 4246 may be 0.28 mm, 0.34 mm, 0.41 mm, or the like.

[0261] Specifically, during the elastic movement of the second outer elastic connecting portion 4243, the primary area undergoing elastic deformation is the elastic portion 4246. The spacing between the elastic portion 4246 and the outer edge of the second inner ring fixing portion 4241 and the inner edge of the second outer ring fixing portion 4242 affects the size of the elastic portion 4246. Therefore, setting the spacing between 0.1 mm and 0.4 mm allows the elastic portion 4246 to have a larger volume, effectively concentrating the magnetic field. It also reduces the elastic portion 4246's potential for contact with the second inner ring fixing portion 4241 and the second outer ring fixing portion 4242. In particular, when the elastic portion 4246 undergoes elastic deformation and drives the second inner ring fixing portion 4241 to vibrate, interference between the elastic portion 4246, the second inner ring fixing portion 4241, and the second outer ring fixing portion 4242 is minimized, thereby ensuring the vibration effect of the transducer device 42.

[0262] In some embodiments, as shown in Figure 29, the second vibration transmission plate 424 may have a long axis direction LD2 and a short axis direction SD2, the size of the second vibration transmission plate 424 along the long axis direction LD2 is larger than the size along the short axis direction SD2, the elastic coefficient of the second vibration transmission plate 424 along the long axis direction LD2 is set to be greater than or equal to 55,000 N / m, and / or the elastic coefficient along the short axis direction SD2 is set to be greater than or equal to 9,500 N / m.

[0263] The long axis direction LD2 of the second vibration transmission piece 424 can be indicated by the arrow direction LD2 in FIG. 29 , and the dimension of the second vibration transmission piece 424 along the long axis direction LD2 can be indicated by the length ld2 . The short axis direction SD2 of the second vibration transmission piece 424 can be indicated by the arrow direction SD2 in FIG. 29 , and the dimension of the second vibration transmission piece 424 along the short axis direction SD2 can be indicated by the length sd2 .

[0264] Specifically, if the elastic coefficients of the second vibration transmission piece 424 in the long axis direction LD2 and the short axis direction SD2 are too small, the second vibration transmission piece 424 is likely to be deformed when the transducer device 42 vibrates, thereby causing the transducer device 42 to be skewed in position and vibrate unstably, and thus making it easy for the bone conduction derivative 40 to generate noise.

[0265] Therefore, by setting the elastic modulus of the second vibration transmission piece 424 along the long axis direction LD2 to be greater than or equal to 55,000 N / m, and the elastic modulus along the short axis direction SD2 to be greater than or equal to 9,500 N / m, the second vibration transmission piece 424 can have a certain degree of hardness, thereby separating the magnetic shield 423 from the magnetic circuit system 426 and minimizing adhesion between the magnetic shield 423 and the magnetic circuit system 426. Furthermore, by setting the elastic modulus of the second vibration transmission piece 424 along the long axis direction LD2 and the short axis direction SD2 to be relatively large, the elastic portion 4246 of the second vibration transmission piece 424 is less likely to break or deform due to high vibration intensity during vibration. This improves the reliability and structural stability of the second vibration transmission piece 424 and ensures the vibration effect of the transducer device 42.

[0266] For example, the elastic modulus of the second vibration transmitting piece 424 along the long axis direction LD2 can be set to 60,000 N / m, 70,000 N / m, 80,000 N / m, etc. Alternatively, the elastic modulus of the second vibration transmitting piece 424 along the short axis direction SD2 can be set to 10,000 N / m, 20,000 N / m, 25,000 N / m, etc.

[0267] In some embodiments, as shown in FIG. 2 and FIG. 25 , the bone conduction speaker 40 may further include a vibration-transmitting face-attaching component 43 and an auxiliary face-attaching component 44 .

[0268] The vibration face-mounted component 43 may include a vibration plate 431 and a soft vibration transmission member 432. The vibration plate 431 is connected to the transducer 42, and the soft vibration transmission member 432 may be disposed on the vibration plate 431. When the transducer 42 vibrates, the bracket 421 in the transducer 42 further drives the vibration plate 431 to vibrate, and the vibration plate 431 can further drive the soft vibration transmission member 432 to vibrate to generate a vibration signal.

[0269] Furthermore, the auxiliary face-fitting assembly 44 may also include a hard support member 441 and a soft fitting member 442. The hard support member 441 is connected to the movement housing 41, and the soft fitting member 442 is disposed on the hard support member 441. The soft fitting member 442 and the soft vibration transmission member 432 are configured to contact the facial area in front of the tragus when worn. Optionally, the hard support member 441 may be connected to the movement housing 41, and the soft fitting member 442 may be disposed on the side of the hard support member 441 facing away from the movement housing 41.

[0270] Among them, the hard support part 441 and the soft fitting part 442 can limit the exposed area of ​​the soft vibration transmitter 432, so that the soft vibration transmitter 432 can contact the facial area in front of the tragus when worn, and can transmit the vibration signal to the human body.

[0271] The soft fitting part 442 and the soft vibration transmitting part 432 can contact the facial area in front of the tragus together, which can increase the contact area between the speaker assembly 3 and the human face, thereby improving the wearing comfort of the speaker assembly 3.

[0272] Optionally, in a natural state, the protruding height Ht2 of the soft fitting member 442 relative to the soft vibration transmitting member 432 is between 0.4 and 1 mm. For example, the protruding height Ht2 of the soft fitting member 442 relative to the soft vibration transmitting member 432 can be 0.5 mm, 0.6 mm, or 0.8 mm.

[0273] Optionally, the soft fitting part 442 may be softer than the soft vibration transmitting part 432, so that when the speaker assembly 3 is in a worn state, the soft fitting part 442 can improve the wearing comfort of the speaker assembly 3, and can also be pressed and held flush with the soft vibration transmitting part 432 to fit together with the human face, thereby being able to share the pressure borne by the soft vibration transmitting part 432 to further improve the vibration effect of the soft vibration transmitting part 432.

[0274] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A headset, wherein: The earphones include a speaker assembly and a wearing assembly connected to the speaker assembly, wherein the wearing assembly is used to position the speaker assembly on the face area in front of the user's tragus when worn, and the speaker assembly includes a bone conduction speaker, which includes a movement housing, a first vibration transmitting piece, a transducer, a vibration plate, and a lead. The first vibration transmitting plate includes an inner ring fixing portion, an outer ring fixing portion and at least two elastic connecting portions, the outer ring fixing portion is arranged around the periphery of the inner ring fixing portion, the at least two elastic connecting portions are connected between the inner ring fixing portion and the outer ring fixing portion, the inner ring fixing portion is connected to the transducer device, the outer ring fixing portion is connected to the movement housing, and the transducer device is suspended in the movement housing, and the vibration plate is connected to the transducer device. The lead is connected to the transducer device and includes a first lead portion extending from the inner ring fixing portion to the outer ring fixing portion. When observed along the vibration direction of the vibration plate, the first vibration transmission piece has a long axis direction and a short axis direction that are perpendicular to each other, and the size of the first vibration transmission piece along the long axis direction is larger than the size along the short axis direction. The angle between the first lead portion and the long axis direction is smaller than the angle between the first lead portion and the short axis direction.

2. The headset according to claim 1, wherein The first lead portion is arranged along the long axis direction.

3. The earphone according to claim 1, wherein The movement housing is provided with rotating shaft mechanisms spaced from each other along the short axis direction, and the rotating shaft mechanisms are used to define a rotation axis so that the movement housing rotates around the rotation axis. The lead includes a second lead portion, which is connected to one end of the first lead portion near the outer ring fixing portion and extends toward the rotating shaft mechanism along the circumference of the movement housing.

4. The earphone according to claim 3, wherein The movement housing is provided with a wire guide groove along the circumference of the movement housing, and the second wire guide portion is embedded in the wire guide groove.

5. The earphone according to claim 4, wherein A first hollow area is provided on the outer ring fixing portion, a first insert is provided on the movement housing, the first insert is further embedded in the first hollow area, the lead groove further extends to the first insert, the first vibration transmission plate is a metal part, and the first insert is a plastic part.

6. The earphone according to claim 3, wherein The movement housing is provided with a housing lead hole, the extension direction of which intersects with the rotation axis, and the second lead portion further passes through the housing lead hole and is used to connect to the control circuit board.

7. The earphone according to claim 6, wherein The speaker assembly further includes a main shell, the movement shell includes a bottom wall and a peripheral side wall connected to the bottom wall to form a accommodating space with an open end, the transducer is arranged in the accommodating space, the shell lead hole is arranged on the bottom wall, the rotating shaft mechanism is arranged on the peripheral side wall, the rotating shaft mechanism rotates and supports the movement shell on the main shell, and the control circuit board is arranged in the main shell and is located on the side of the bottom wall of the movement shell away from the transducer.

8. The earphone according to claim 3, wherein The transducer device includes a bracket and a coil arranged on the bracket, a weight-reducing cavity is provided on the bracket, the bracket is connected to the inner ring fixing part, the bracket is provided with a first bracket lead hole, the first bracket lead hole connects the weight-reducing cavity and the side of the bracket close to the inner ring fixing part, the lead includes a third lead part, the third lead part is connected to one end of the first lead part close to the inner ring fixing part, and extends along the first bracket lead hole to the weight-reducing cavity, and is electrically connected to the coil.

9. The earphone according to claim 8, wherein A second hollow area is provided on the inner ring fixing portion, a second embedded block is provided on the bracket, at least a portion of the second embedded block is further embedded in the second hollow area, the lead hole of the first bracket is provided on the second embedded block, the first vibration transmission plate is a metal part, and the second embedded block is a plastic part.

10. The headset according to claim 1, wherein The transducer device includes a magnetic cover, a coil and a bracket, the magnetic cover is arranged in a cylindrical shape, and is provided with a connecting hole connecting the inner wall surface and the outer wall surface of the magnetic cover along the radial direction of the magnetic cover, the bracket is arranged on the magnetic cover in a molding manner, and includes a bracket body, a limiting portion and a connecting portion, wherein the bracket body is at least partially arranged inside the inner wall surface, the limiting portion is arranged on the outer wall surface, the connecting portion integrally connects the bracket body and the limiting portion through the connecting hole, the limiting portion is used to limit the coil arranged on the outer wall surface, and the bracket body is connected to the vibration plate.

11. The headset according to claim 10, wherein The limiting portion is configured to abut against the coil along the axial direction of the magnetic conductive cover.

12. The headset according to claim 10, wherein The limiting portion is arranged in a ring shape along the circumference of the magnetic conductive cover.

13. The earphone according to claim 10, wherein The limiting portion includes a first sub-limiting portion and a second sub-limiting portion spaced apart along the axial direction of the magnetic conductive cover, and the coil is wound between the first sub-limiting portion and the second sub-limiting portion.

14. The earphone according to claim 10, wherein The material density of the bracket is smaller than the material density of the magnetic conductive cover.

15. The earphone according to claim 10, wherein The bracket body is provided with a weight-reducing cavity, and the connecting part is provided with a bracket lead hole. The lead end of the coil further extends into the weight-reducing cavity through the bracket lead hole, and the lead is arranged to be connected to the lead end of the coil in the weight-reducing cavity.

16. The headset according to claim 15, wherein The leads and the lead ends are in two corresponding groups, and the bracket body is provided with a spacing mechanism located in the weight-reducing cavity, and the spacing mechanism is used to keep the connection positions of the two groups of leads and the lead ends at a predetermined interval.

17. The headset according to claim 15, wherein The bracket body is provided with a first connector hole and a plurality of first connector pins on the side facing the inner ring fixing part, and the plurality of first connector pins are arranged around and spaced apart on the periphery of the first connector hole. The inner ring fixing part is provided with an exposed hole and a plurality of assembly holes, and the plurality of assembly holes are arranged around and spaced apart on the periphery of the exposed hole. The first connector hole is exposed through the exposed hole, and the first connector pin is inserted into the corresponding assembly hole. The vibration plate is provided with a second connector pin and a plurality of second connector holes, and the plurality of second connector holes are arranged around and spaced apart on the periphery of the second connector pin. The second connector pin is plugged into and matched with the first connector hole, and the first connector pin is plugged into and matched with the second connector hole.

18. The headset according to claim 17, wherein The bracket body is further provided with a third connecting post located in the first connecting hole, and the vibration plate is provided with a third connecting hole located on the second connecting post, and the third connecting post is plugged into and matched with the third connecting hole.

19. The headset according to claim 1, wherein The bone conduction speaker also includes a cover, the transducer device includes a bracket, the first vibration transmission plate is connected to the bracket and the movement shell to suspend the transducer device in the movement shell, the vibration plate is connected to the bracket, the bracket is provided with a first weight-reducing cavity located inside the movement shell and having an open end, and the cover is used to seal the open end of the first weight-reducing cavity.

20. The headset according to claim 19, wherein The movement housing includes a bottom wall and a peripheral side wall connected to the bottom wall to form a accommodating space with an open end. The transducer is arranged in the accommodating space, and the open end of the first weight reduction cavity is arranged toward the bottom wall.

21. The headset according to claim 19, wherein The cover is configured to seal the first weight-reducing cavity at one side of the opening end of the first weight-reducing cavity.

22. The headset according to claim 19, wherein A second weight-reducing cavity is provided on a side of the cover body facing the first weight-reducing cavity, and the first weight-reducing cavity and the second weight-reducing cavity are communicated with each other.

23. The headset according to claim 19, wherein The cover body is detachably connected to the bracket.

24. The headset according to claim 23, wherein The bracket is provided with a connecting hole located at the periphery of the first weight-reducing cavity. The cover body includes a cover body and a connecting post arranged on one side of the cover body. The connecting post is connected to the connecting hole. The cover body covers the open end of the first weight-reducing cavity.

25. The headset according to claim 1, wherein The bone conduction speaker also includes a vibration transmission face-attaching component, The movement housing includes a bottom wall and a peripheral side wall connected to the bottom wall to form an accommodating space with an open end. The energy conversion device is placed in the accommodating space through the open end of the movement housing. The transducer device includes a bracket, the first vibration transmission plate connects the bracket and the movement housing to elastically suspend the transducer device in the movement housing, the vibration transmission face assembly is assembled and fixed on the bracket along the spacing direction between the bracket and the bottom wall, the bottom wall is provided with a through hole arranged opposite to the bracket, and the through hole is arranged to allow a supporting jig to be inserted into the accommodating space from the through hole and support the bracket when the vibration transmission face assembly is assembled and fixed on the bracket.

26. The headset according to claim 25, wherein When observed along the vibration direction of the transducer device, the bone conduction speaker has a long axis direction and a short axis direction, and the size of the bone conduction speaker along the long axis direction is larger than the size along the short axis direction. The number of the through holes is two, and the two through holes are arranged at intervals along the long axis direction.

27. The headset according to claim 25, wherein In a reference plane perpendicular to the vibration direction of the transducer device, the through hole forms a first projection area in the reference plane along the vibration direction, and the bracket forms a second projection area in the reference plane along the vibration direction, and the area ratio of the overlapping part of the first projection area and the second projection area to the second projection area is greater than or equal to 0.

3.

28. The headset according to claim 25, wherein The inner ring fixing portion is connected to the bracket, the outer ring fixing portion is connected to the movement housing, and the radial dimension of the vibration transmission face assembly is greater than the radial dimension of the outer ring fixing portion.

29. The headset according to claim 28, wherein The vibration transmission face-fitting assembly includes a vibration plate, a soft vibration transmission part and a hard bracket, wherein the middle area of the soft vibration transmission part is fixed to the vibration plate in a molding manner, and the edge area of the soft vibration transmission part is fixed to the hard bracket in a molding manner, the vibration plate and the bracket are plugged together along the spacing direction, the hard bracket is connected to the movement housing, and the radial dimension of the hard bracket is larger than the radial dimension of the outer ring fixing part.

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