Loudspeaker assembly and earphone

Abstract

The utility model mainly relates to a loudspeaker assembly and an earphone, the loudspeaker assembly comprises a bone conduction loudspeaker, the bone conduction loudspeaker comprises a movement shell, a first vibration transmission sheet and a transduction device, the first vibration transmission sheet is connected with the movement shell and the transduction device so as to suspend the transduction device in the movement shell, and the first vibration transmission sheet is connected with the transduction device. The transduction device further comprises a support, a coil, a magnetic circuit system and a second vibration transmission piece, the second vibration transmission piece is connected with the magnetic circuit system and the support so that the magnetic circuit system can be elastically hung on the periphery of the support, the coil is arranged on the support and located in the magnetic circuit system, the first vibration transmission piece is a non-magnetizer, and the second vibration transmission piece is a magnetizer. In this way, the magnetic field intensity can be improved, and therefore the vibration effect of the transduction device can be improved.

Description

Technical Field

[0001] The present application relates to the field of acoustic technology, and in particular to a speaker assembly and an earphone. Background Art

[0002] With the increasing popularity of electronic devices, electronic devices have become an indispensable social and entertainment tool in people's daily lives, and people's requirements for electronic devices are getting higher and higher. Electronic devices such as headphones have also been 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. Utility Model Content

[0003] The present application provides a speaker assembly, which includes a bone conduction speaker. The bone conduction speaker includes a movement housing, a first vibration transmission piece and a transducer device. The first vibration transmission piece is connected to the movement housing and the transducer device to suspend the transducer device in the movement housing; the transducer device also includes a bracket, a coil, a magnetic circuit system and a second vibration transmission piece. The second vibration transmission piece is connected to the magnetic circuit system and the bracket to elastically suspend the magnetic circuit system on the periphery of the bracket. The coil is arranged on the bracket and located inside the magnetic circuit system. The first vibration transmission piece is a non-magnetic conductor, and the second vibration transmission piece is a magnetic conductor.

[0004] In some embodiments, the speaker assembly further includes an air conduction speaker for providing air conduction sound in a first frequency band, and a bone conduction speaker for providing bone conduction sound in a second frequency band, wherein the second frequency band is at least partially higher than the first frequency band.

[0005] In some embodiments, the first vibration transmission plate has a long axis direction and a short axis direction that are perpendicular to each other, the size of the first vibration transmission plate along the long axis direction is larger than the size along the short axis direction, the elastic coefficient of the first vibration transmission plate along the long axis direction is set to be greater than 1500N / m, and / or the elastic coefficient along the short axis direction is set to be greater than 6500N / m.

[0006] In some embodiments, the bone conduction speaker further includes a vibration-transmitting face-attaching component and an auxiliary face-attaching component, the vibration-transmitting face-attaching component includes a vibration plate and a soft vibration-transmitting component, the vibration plate is connected to the transducer device, the soft vibration-transmitting component is arranged on the vibration plate, the auxiliary face-attaching component includes a hard supporting component and a soft fitting component, the hard supporting component is connected to the movement housing, the soft fitting component is arranged on the hard supporting component, the soft fitting component and the soft vibration-transmitting component are used to contact the facial area in front of the tragus when worn, and in a natural state, the protruding height of the soft fitting component relative to the soft vibration-transmitting component is between 0.4 and 1 mm.

[0007] In some embodiments, the first vibration transmission plate includes a first inner ring fixing portion, a first outer ring fixing portion and at least two first elastic connecting portions. The first outer ring fixing portion is arranged around the periphery of the first inner ring fixing portion. At least two first elastic connecting portions are connected between the first inner ring fixing portion and the first outer ring fixing portion. The first outer ring fixing portion and the movement housing and the first inner ring fixing portion and the bracket are respectively assembled and fixed by means of plug-in.

[0008] In some embodiments, the bone conduction speaker also includes a vibration plate, a first connector hole and a plurality of first connector pins are provided on the side of the bracket facing the first inner ring fixing portion, the plurality of first connector pins are surrounded and spaced apart on the periphery of the first connector hole, the first inner ring fixing portion is provided with an exposed hole and a plurality of assembly holes, the plurality of assembly holes are surrounded and spaced apart on the periphery of the exposed hole, the first connector hole is exposed through the exposed hole, 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, the plurality of second connector holes are surrounded and spaced apart on the periphery of the second connector pin, the second connector pin is plug-matched with the first connector hole, and the first connector pin is plug-matched with the second connector hole.

[0009] In some embodiments, the transducer device also includes a magnetic cover, which is cylindrical and connected to the bracket, the coil is wound around the periphery of the magnetic cover, the second vibration transmission plate includes a second inner ring fixing portion, a second outer ring fixing portion and at least two second outer elastic connecting portions, the second outer ring fixing portion is arranged around the periphery of the second inner ring fixing portion, at least two second outer elastic connecting portions are connected between the second inner ring fixing portion and the second outer ring fixing portion, the second outer ring fixing portion is connected to the outer end surface of the magnetic circuit system, and the second inner ring fixing portion is connected to the outer end surface of the magnetic cover.

[0010] In some embodiments, the coverage of the outer end surface of the magnetic circuit system by the second outer ring fixing portion is greater than or equal to 60%, and / or the coverage of the outer end surface of the magnetic conductive cover by the second inner ring fixing portion is greater than or equal to 60%.

[0011] In some embodiments, when observed along the vibration direction of the transducer device, at least two second outer elastic connecting portions have a first area, an annular area between an outer edge of the second inner ring fixing portion and an inner edge of the second outer ring fixing portion has a second area, and a ratio of the first area to the second area is between 0.2 and 0.7.

[0012] In some embodiments, the second outer elastic connection portion includes a first connection portion, a second connection portion and an elastic portion, respectively. The first connection portion is connected to the outer edge of the second inner ring fixing portion, the second connection portion is connected to the inner edge of the second outer ring fixing portion, and the elastic portion is located between the first connection portion and the second connection portion. The elastic portion is spaced from the outer edge of the second inner ring fixing portion and the inner edge of the second outer ring fixing portion, respectively, and the spacing distance is between 0.1 mm and 0.4 mm.

[0013] In some embodiments, the second inner ring fixing portion is fixed to the outer end surface of the magnetic conductive cover by welding, and the second outer ring fixing portion is fixed to the outer end surface of the magnetic circuit system by welding.

[0014] In some embodiments, the second vibration transmission plate has a long axis direction and a short axis direction, the size of the second vibration transmission plate along the long axis direction is larger than the size along the short axis direction, the elastic coefficient of the second vibration transmission plate along the long axis direction is set to be greater than or equal to 9500 N / m, and / or the elastic coefficient along the short axis direction is set to be greater than or equal to 55000 N / m.

[0015] The present application provides an earphone, which includes a speaker assembly as in the above embodiment and a wearing assembly connected to the speaker assembly, and the wearing assembly is used to position the speaker assembly in the facial area in front of the user's tragus when worn.

[0016] The beneficial effect of the present application is that, unlike the prior art, the first vibration transmission piece of the present application is provided with a non-magnetic conductor, so that the first vibration transmission piece is not easy to attract the magnetic circuit system and produce eccentricity, thereby reducing the influence of the first vibration transmission piece on the vibration effect of the transducer device. Moreover, due to its elastic effect, the first vibration transmission piece can suspend the transducer device in the movement housing, thereby reducing the vibration generated by the transducer device from being transmitted to the movement housing, thereby reducing the vibration generated by the movement housing, and thereby reducing sound leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of an earphone embodiment of the present application;

[0018] Figure 2 Yes Figure 1 A schematic diagram of the disassembled structure of the earphone shown;

[0019] Figure 3 Yes Figure 1 Schematic diagram of usage scenarios of the earphones shown;

[0020] Figure 4 Yes Figure 2 A schematic diagram of the disassembled structure of the bone conduction speaker shown;

[0021] Figure 5 Yes Figure 2 The bone conduction speaker is a schematic top view of the first vibration transmitting piece;

[0022] Figure 6 Yes Figure 2 The bone conduction speaker does not show a schematic top view of the first vibration transmitting piece;

[0023] Figure 7 Yes Figure 1 A schematic cross-sectional view of section ZZ is shown;

[0024] Figure 8 Yes Figure 4 A schematic diagram of the three-dimensional structure of the movement housing shown;

[0025] Fig. 9 Yes Figure 4 A bottom view schematic diagram of a partial structure of the energy conversion device shown;

[0026] Fig.10 Yes Figure 2 Another disassembled structural diagram of the bone conduction speaker shown;

[0027] Fig.11 Yes Fig.10 A schematic diagram of a partially disassembled structure of the energy conversion device shown;

[0028] Fig.12 Yes Fig.10 A bottom view schematic diagram of a partial structure of the energy conversion device shown;

[0029] Fig.13 Yes Figure 2 The bone conduction speaker shown is a schematic top view without showing the vibration plate;

[0030] Fig.14 Yes Fig.10 A schematic diagram of the three-dimensional structure of the vibration plate shown;

[0031] Fig.15 Yes Figure 2 Another disassembled structural diagram of the bone conduction speaker shown;

[0032] Fig.16 Yes Figure 2 A bottom view schematic diagram of the bone conduction speaker shown;

[0033] Fig.17 is a schematic diagram of the overall structure of an embodiment of a transducer device provided by the present application;

[0034] Fig.18 yes Fig.17 A schematic diagram of the exploded structure of some components of the embodiment of the energy conversion device shown;

[0035] Fig.19 yes Fig.17 The schematic cross-sectional structure diagram of the energy conversion device embodiment shown in FIG. 1 along the cutting direction aa;

[0036] Fig. 20 yes Fig.17 A schematic diagram of a top view of an embodiment of a transducer device shown;

[0037] Fig.21 yes Fig. 20A schematic diagram showing a comparison between the outer edge circumference 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;

[0038] Fig. 22 yes Fig.17 A schematic cross-sectional structure diagram of the embodiment of the energy conversion device shown in another viewing angle along the cutting direction aa;

[0039] Fig.23 yes Fig.19 The enlarged structural diagram of the energy conversion device embodiment shown in FIG.

[0040] Fig.24 yes Figure 2 The overall structural diagram of some components of the bone conduction speaker in the earphone embodiment shown;

[0041] Fig.25 yes Fig.24 A schematic cross-sectional structure diagram of the bone conduction speaker embodiment along the bb cutting direction;

[0042] Fig.26 yes Fig.24 A schematic structural diagram of a first vibration transmitting piece in the embodiment of the bone conduction speaker shown;

[0043] Fig. 27 yes Fig.24 A schematic diagram of the exploded structure of some components of the bone conduction speaker embodiment shown;

[0044] Fig.28 yes Fig.17 A schematic structural diagram of a second vibration-transmitting piece in the embodiment of the energy-converting device shown;

[0045] Fig.29 yes Fig.17 Another schematic diagram of the structure of the second vibration transmitting piece in the energy conversion device embodiment is shown. DETAILED DESCRIPTION

[0046] The present application is 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, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0047] like Figure 1As shown, the earphone 1 may include a wearing component 2, a speaker component 3 and a stick microphone component 7. The number of the speaker components 3 may be two. The two speaker components 3 are used to transmit vibration and / or sound to the left ear and the right ear of the user respectively. The two speaker components 3 may be the same or different. For example, one speaker component 3 may be provided with a stick microphone component 7, while the other speaker component 3 may not be provided with a stick microphone component 7.

[0048] like Figure 2 As shown, the wearing component 2 may include a headband component 21, a telescopic component 22 and a torsion component 23. The number of the telescopic components 22 may be two, and the number of the torsion components 23 may also be two. The two ends of the headband component 21 are connected to two telescopic components 22 in a one-to-one correspondence, and the two telescopic components 22 are connected to two torsion components 23 in a one-to-one correspondence. The two torsion components 23 are connected to two speaker components 3 in a one-to-one correspondence. The headband component 21 is used to go around the top of the user's head, and the shape of the headband component 21 can match the user's head contour, so that the user is more comfortable and stable when wearing the headband component 21. The headband component 21 is also used to elastically clamp both sides of the user's head. The telescopic component 22 can perform telescopic movement to change its own length, thereby changing the distance between the headband component 21 and the speaker component 3, and then adaptively adjusted according to the different head shapes of the users, so that the speaker component 3 can be positioned in a suitable position, thereby improving the compatibility of the wearing component 2. The torsion assembly 23 can generate elastic torsion, and can generate torsion when the speaker assembly 3 contacts the user's head in the wearing state, so that the speaker assembly 3 can better fit the user's face or be positioned at the ear.

[0049] like 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 forming 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 in the wearing state.

[0050] like Figure 2As shown, the telescopic assembly 22 may include a fixed portion 221 and a telescopic portion 223 telescopically arranged relative to the fixed portion 221, and both ends of the clamping assembly 210 are respectively fixed to the corresponding fixed portion 221, for example, they may be plugged and fixed. The telescopic assembly 22 may include a decorative portion 224, the fixed portion 221 is provided with a slide groove 2203, the telescopic portion 223 is slidably arranged in the slide groove 2203, and the decorative portion 224 is assembled and fixed with 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 in the slide groove 2203.

[0051] like Figure 2 As shown, 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 disposed at both ends of the elastic connector 231. Figure 2 The second elastic covering body 232 is formed to cover the outer periphery of the elastic connecting member 231, and the wire can be passed through the second elastic covering body 232. The first plug part 233 is plugged with the plug hole 310 of the speaker assembly 3, and the second plug part 234 is plugged with the plug hole (not marked) of the telescopic part 223.

[0052] like Figure 2 As shown, 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 used to fit the user's face, and the air conduction speaker 50 is used to transmit air conduction 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.

[0053] like Figure 2As shown, the housing assembly 30 may include a main housing 31 and a main cover 32. The main housing 31 may have an open end, and the main cover 32 covers the open end of the main housing 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 housing 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 housing 31 in such a way that the vibration directions are perpendicular to each other, so as to reduce mutual interference between the bone conduction speaker 40 and the air conduction speaker 50. For the comfort of 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 in the wearing state, thereby improving the 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 closely with the support of the hard support component 441.

[0054] like Figure 2 As shown, 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 wire 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.

[0055] The stick microphone assembly 7 is rotatably arranged on the speaker assembly 3. The stick microphone assembly 7 may include a stick body assembly 70, a microphone assembly 80 and a shaft mechanism 91, wherein the microphone assembly 80 and the shaft mechanism 91 may be connected to both ends of the stick body assembly 70, and the shaft mechanism 91 is rotatably connected to the speaker assembly 3. In the wearing state, the shaft mechanism 91 may position the microphone assembly 80 in the sound pickup area of ​​the user's mouth by rotating relative to the speaker assembly 3. The microphone assembly 80 is provided with at least one microphone and a related button, which may realize turning the microphone on or off.

[0056] In the fields of medicine and anatomy, we can define three basic planes of the human body: the sagittal plane, the coronal plane, and the horizontal plane, as well as three basic axes: the sagittal axis SA (SagittalAxis), the coronal axis CA (CoronalAxis), and the vertical axis VA (VerticalAxis). Among them, the sagittal plane refers to a plane perpendicular to the ground along the front-to-back direction of the body, which divides the human body into left and right parts; the coronal plane refers to a plane perpendicular to the ground along the left-to-right direction of the body, which divides the human body into front and back parts; the horizontal plane refers to a plane parallel to the ground along the up-down direction of the body, which divides the human body into upper and lower parts. Correspondingly, the sagittal axis SA refers to the axis along the front-to-back direction of the body and perpendicular to the coronal plane, the coronal axis refers to the axis along the left-to-right direction of the body and perpendicular to the sagittal plane, and the vertical axis VA refers to the axis along the up-down direction of the body and perpendicular to the horizontal plane. As Figure 3 As shown, 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.

[0057] The following content will describe the earphone 1 or some of the components and structures mentioned above in detail. 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.

[0058] Alternatively, if Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the speaker assembly 3 may include a bone conduction speaker 40 , and the bone conduction speaker 40 includes a movement housing 41 , a first vibration transmitting piece 45 , a transducer device 42 , a vibration plate 431 and a lead 46 .

[0059] 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 outer 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, so that the transducer device 42 is suspended in the movement housing 41, and the vibration plate 431 is connected to the transducer device 42.

[0060] 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.

[0061] 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 respectively connected to the transducer device 42 and the movement housing 41, 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, so that the speaker assembly 3 can convert sound into mechanical vibrations of different frequencies, and when the speaker assembly 2 is worn on the user's head, it contacts the cheekbones of the user's face and directly conducts sound, so as to achieve a good sound transmission effect and effectively improve 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.

[0062] The lead wire 46 is connected to the transducer device 42 and is used to transmit an electrical signal to the transducer device 42. By setting the first lead wire portion 461 to have an angle with the long axis direction LD1 smaller than an angle with the short axis direction SD1, the length of the first lead wire portion 461 is increased, thereby effectively reducing the ratio of the stretched length generated by stretching the first lead wire portion 461 when the transducer device 42 vibrates to the total length of the first lead wire portion 461, thereby effectively reducing the possibility of the transducer device 42 over-stretching the first lead wire portion 461 during vibration, effectively improving the structural stability and reliability of the speaker assembly 3, and effectively improving the service life of the speaker assembly 3.

[0063] Alternatively, if Figure 5As shown, the first lead portion 461 is arranged along the long axis direction LD1, that is, 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°. The first lead portion 461 is arranged along the long axis direction LD1, which is convenient for positioning and can further increase the length of the first lead portion 461, thereby effectively reducing 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 improving 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 can be 30°, and the angle between the first lead portion 461 and the short axis direction SD1 can be 60°.

[0064] Alternatively, if Figure 5 and Figure 6 As shown, the movement housing 41 is provided with a rotating shaft mechanism 41x which is spaced apart 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, and 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 close to the outer ring fixing portion 452, and extends along the circumference of the movement housing 41 toward the rotating shaft mechanism 41x.

[0065] By setting a hinge mechanism 41x to realize the rotation of the movement housing 41 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 stretching / shaking degree 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.

[0066] Alternatively, if Figure 6 As shown, the core housing 41 is provided with a lead groove 4105 along the circumference of the core housing 41, and the second lead portion 462 is embedded in the lead groove 4105. By providing the lead groove 4105 to accommodate the second lead portion 462, the second lead portion 462 is effectively protected and fixed while being convenient for positioning and installing the second lead portion 462, and the possibility of interference between the second lead portion 462 and other components can be reduced, thereby effectively improving the reliability of the speaker assembly 3.

[0067] Alternatively, if Figure 4 and Figure 6 As shown, the outer ring fixing portion 452 is provided with a first hollow area 454, the movement housing 41 is provided with a first insert 414, the first insert 414 is further embedded in the first hollow area 454, the lead groove 4105 further extends to the first insert 414, the first vibration transmission piece 45 can be a metal part, and the first insert 414 can be a plastic part. Among them, the first vibration transmission piece 45 can be made of demagnetized metal material, such as demagnetized stainless steel, demagnetized aluminum alloy, etc.

[0068] By setting the first hollow area 454 and the first insert 414 to cooperate with each other to realize the connection between the first vibration transmission piece 45 and the movement housing 41, the structure is simple, easy to assemble, and the assembly efficiency is effectively improved. The first vibration transmission piece 45 is, for example, a metal part, and the first insert 414 is, for example, a plastic part, that is, the hardness of the first insert 414 is lower than that of the first vibration transmission piece 45. The first insert 414 can be embedded in the first hollow area 454 by undergoing a certain elastic deformation, so that the two can be interference fit to improve the connection stability. The lead groove 4105 is further extended to the first insert 414 to position and install the lead 46, effectively protect the lead 46, and effectively reduce the possibility of the outer ring fixing part 452 causing damage to the lead 46 during the vibration of the transducer device 42, which is conducive to improving the stability and reliability of the speaker assembly 3.

[0069] Alternatively, if Figure 6 and Figure 7 As shown, a housing lead hole 4104 is provided on the movement housing 41 , and an extension direction of the housing lead hole 4104 intersects with the rotation axis Ax1 . The second lead portion 462 further passes through the housing lead hole 4104 and is used to connect to the control circuit board 62 .

[0070] By providing the housing lead hole 4104 to realize the electrical connection between the second lead portion 462 and the control circuit board 62, it is convenient for the control circuit board 62 to output the electrical signal and transmit it to the transducer device 42, which is beneficial to improving the working stability and reliability of the speaker assembly 3. And the extension direction of the housing lead hole 4104 intersects with the rotation axis Ax1, which can effectively reduce the stretching of the second lead portion 462 during the rotation of the movement housing 41, which is beneficial to improving the working stability and reliability of the speaker assembly 3.

[0071] Alternatively, if Figure 2 , Figure 4 and Figure 8As shown, 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 opening at one 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 shaft mechanism 41x is arranged on the peripheral side wall 412, the 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.

[0072] By setting the transducer device 42 in the accommodating space 410, setting the shell lead hole 4104 on the bottom wall 411, and setting 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 the second lead portion 462 passing through the shell lead hole 4104 to connect to the control circuit board 62, the required extension length of the second lead portion 462 passing 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.

[0073] Alternatively, if Figure 7 As shown, along the vibration direction z1 of the vibration plate 431, the distance between the pivot mechanism 41x and the bottom wall 411 is smaller than the distance between the pivot mechanism 41x and the opening end 413 of the movement housing 41, that is, the pivot 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 interference with the control circuit board 62 by other components, which is beneficial to improving the stability and reliability of the operation of the speaker assembly 3.

[0074] Alternatively, if Figure 4 and Fig. 9 As shown, the transducer device 42 includes a bracket 421 and a coil 422 arranged on the bracket 421, a weight reduction cavity 420 is arranged 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 one 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.

[0075] 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 at one end close to 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 operation of the speaker assembly 3.

[0076] Alternatively, if Figure 4 and Figure 6 As shown, the inner ring fixing portion 451 is provided with a second hollow area 455, the bracket 421 is provided with a second insert 4217, at least part of the second insert 4217 is further embedded in the second hollow area 455, the first bracket lead hole 4201 is provided on the second insert 4217, the first vibration transmission piece 45 can be a metal part, and the second insert 4217 can be a plastic part. Optionally, the second insert 4217 includes a plug post 4204, and the plug post 4204 is further embedded in the second hollow area 455.

[0077] By setting the second hollow area 455 and the second insert 4217 to achieve the connection between the inner ring fixing part 451 and the bracket 421, the structure is simple, easy to assemble, and the assembly efficiency is effectively improved. The first vibration transmission piece 45 can be a metal part, and the second insert 4217 can be a plastic part, that is, the hardness of the second insert 4217 is lower than that of the first vibration transmission piece 45. The second insert 4217 can be embedded in the second hollow area 455 by undergoing a certain elastic deformation, so that the two can be interference fit to improve the connection stability. The first bracket lead hole 4201 is set on the second insert 4217 to effectively protect the lead 46, effectively reduce the possibility of the inner ring fixing part 451 causing damage to the lead 46 during the vibration of the transducer device 42, and help improve the stability and reliability of the speaker assembly 3.

[0078] Alternatively, if Fig. 9 As shown, 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 connected to the third lead portion 463.

[0079] 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.

[0080] Alternatively, if Figure 2 , Fig.10 and Fig.11 As shown, 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 cylindrically arranged, and is provided with 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, the bracket 421 is arranged on the magnetic shield 423 in a molding manner, 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, the connecting portion 4213 is integrally connected to the bracket body 4211 and the limiting portion 4212 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.

[0081] 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 improved, and 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 limiting portion 4212 is used to limit the coil 422 to reduce the possibility of misalignment of the coil 422, which is beneficial to improving the vibration effect of the transducer 42, thereby helping to improve the working stability and reliability of the speaker assembly 3. The molding method can be, for example, injection molding, compression molding, and thermoplastic molding, and of course, other methods can also be used.

[0082] Alternatively, if Fig.10 and Fig.11 As shown, the limiting portion 4212 is arranged 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, which facilitates the coil 422 to be mounted or wound on the magnetic cover 423, effectively reducing the difficulty of assembling the coil 422 and improving the assembly efficiency.

[0083] 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.

[0084] 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 inserted into the outer 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 beneficial to improving assembly efficiency.

[0085] Alternatively, if Fig.10 and Fig.11 As shown, the limiting portion 4212 includes a first sub-limiting portion 4214 and a second sub-limiting portion 4215 spaced apart along the axial direction of the magnetic conductive cover 423 , and the coil 422 is wound between the first sub-limiting portion 4214 and the second sub-limiting portion 4215 .

[0086] By setting the first sub-limiting portion 4214 and the second sub-limiting portion 4215 at intervals, the coil 422 is 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.

[0087] 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 facilitating the improvement of the vibration effect of the transducer device 42 and the sound quality of the speaker assembly 3 .

[0088] Alternatively, if Fig.12 As shown, the bracket body 4211 is provided with a weight-reducing cavity 420 , and the connecting 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 .

[0089] By setting 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-out hole 4202. On the one hand, the lead-out end 4221 of the coil 422 extends into the weight-reducing cavity 420, which is convenient for the lead-out end 4221 of the coil 422 to connect 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 working stability and reliability of the speaker assembly 3.

[0090] Alternatively, if Fig.10 and Fig.13As shown, the bone conduction speaker 40 also includes a movement housing 41, a first vibration transmitting plate 45 and a lead 46. The first vibration transmitting 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.

[0091] By setting the first vibration transmission piece 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 respectively connected to the transducer device 42 and the movement housing 41, 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, so that the speaker assembly 3 can convert sound into mechanical vibrations of different frequencies, and use the wearing assembly 2 to achieve contact with the cheekbones of the user's face to directly conduct sound, so as to achieve a good sound transmission effect and effectively improve the sound quality of the earphone 1. And the lead wire 46 is set to be connected to the lead end 4221 of the coil 422 in the weight reduction cavity 420, which effectively reduces the possibility of the lead end 4221 of the coil 422 interfering with peripheral components during the vibration process, which is conducive to improving the stability and reliability of the speaker assembly 3.

[0092] Alternatively, if Fig.12 As shown, the lead wires 46 and the lead-out terminals 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 interval between the connection positions of the two groups of lead wires 46 and the lead-out terminals 4221, thereby effectively reducing the possibility of a short circuit and facilitating improving the stability and reliability of the operation of the speaker assembly 3.

[0093] Alternatively, if Fig.10 , Fig.11 and Fig.14As shown, the bracket body 4211 is provided with a first connector 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 are arranged around and spaced apart on the periphery of the first connector 4203; 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 are arranged around and spaced apart on the periphery of the exposed hole 4501; the first connector 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 4311, and the plurality of second connector 4311 are arranged around and spaced apart on the periphery of the second connector pin 4310; the second connector pin 4310 is plug-matched with the first connector 4203, and the first connector pin 4204 is plug-matched with the second connector 4311.

[0094] By setting the second connector 4310 to be plugged into and matched with the first connector hole 4203 and the first connector 4204 to be plugged into and matched with 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 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 achieved, which effectively simplifies the structure, reduces the difficulty of assembly, and is beneficial to improving the fixing effect between the bracket 421, the first vibration transmission piece 45 and the vibration plate 431, and effectively improving the connection stability.

[0095] Alternatively, if Fig.11 and Fig.14 As shown, the bracket body 4211 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 and matched with the third connector hole 4312.

[0096] By providing a third plug-in coupling column 4205 and a third plug-in hole 4312, the bracket 421 and the vibration plate 431 are further connected and fixed, thereby effectively improving the connection stability and reliability.

[0097] Alternatively, if Figure 2 , Fig.10 and Fig.15As shown, 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 body 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. 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 body 425 is used to seal the open end 4200 of the first weight reduction cavity 420.

[0098] 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, so that the speaker assembly 3 can convert the electrical signal into mechanical vibrations of different frequencies, and use the wearing assembly 2 to achieve contact with the cheekbones of the user's face to directly conduct sound, so as to achieve a good sound transmission effect. By setting the first weight reduction 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 lighter as a whole, 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.

[0099] In addition, since the transducer device 42 generates sound waves when it vibrates in the movement shell 41, if the first weight reduction cavity 420 is not covered, the first weight reduction cavity 420 will be connected to the acoustic cavity in the movement shell 41 for sound wave vibration, which increases the volume of the acoustic cavity for sound wave vibration and increases sound leakage. Therefore, a cover 425 is provided to cover the open end 4200 of the first weight reduction cavity 420 to reduce the volume of the acoustic cavity for sound wave vibration, so that the frequency of the leaked sound waves is shifted to a high frequency that is difficult for the human ear to hear, thereby reducing the sound leakage in the human voice frequency band and effectively improving the sound transmission effect and sound quality of the speaker assembly 3.

[0100] Alternatively, if Fig.10 and Fig.15 As shown, 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 an opening at one end. The transducer device 42 is arranged in the accommodating space 410, and the opening end 4200 of the first weight reduction cavity 420 is arranged toward the bottom wall 411.

[0101] By setting the opening end 4200 of the first weight reduction cavity 420 toward the bottom wall 411, the cover body 425 can 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.

[0102] Alternatively, if Fig.10and Fig.15 As shown, 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.

[0103] Alternatively, if Fig.10 As shown, the cover body 425 is provided with a second weight-reducing cavity 4250 on one side facing the first weight-reducing cavity 420, and the first weight-reducing cavity 420 and the second weight-reducing cavity 4250 are connected to each other. By providing the second weight-reducing cavity 4250 on the cover body 425, and the second weight-reducing cavity 4250 is connected to the first weight-reducing cavity 420 instead of the accommodating space 410, the weight of the transducer device 42 is further reduced to enhance the vibration effect, and the sound transmission effect and sound quality of the speaker assembly 3 are effectively improved.

[0104] Optionally, the cover 425 is detachably connected to the bracket 421. Fig. 9 and Fig.14 As shown, the bracket 421 is provided with a connector hole 4206 located at the periphery of the first weight reduction cavity 420, and the cover body 425 includes a cover body 4251 and a connector column 4252 arranged on one side of the cover body 4251, the connector column 4252 is connected to the connector hole 4206, and the cover body 4251 covers the open end 4200 of the first weight reduction cavity 420.

[0105] The cover 425 and the bracket 421 are detachably connected by arranging the connector column 4252 to match the connector hole 4206. The structure is simple, and it is easy to assemble and disassemble, which effectively reduces the difficulty of assembly and improves the assembly efficiency.

[0106] Alternatively, if Fig.11 and Fig.12 As shown, 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.

[0107] 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 helpful to reduce the possibility of the lead end 4221 of the coil 422 interfering with peripheral components during vibration, thereby helping to improve the stability and reliability of the operation of the speaker assembly 3.

[0108] Alternatively, if Fig.12 As shown, the bone conduction speaker 40 further includes a lead wire 46 , which is arranged to be connected to the lead end 4221 of the coil 422 in the first weight reduction chamber 420 .

[0109] 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 electrical signals to the coil 422 through the lead wire 46, it is helpful to reduce the possibility of interference between the connection part between the lead end 4221 of the coil 422 and the lead wire 46 and peripheral components during vibration, which is beneficial to improving the stability and reliability of the operation of the speaker assembly 3.

[0110] Alternatively, if Fig.11 As shown, the transducer device 42 also includes a magnetic cover 423, which is cylindrical and has a connecting hole 4230 connecting the inner wall and the 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. The bracket 421 is formed on the magnetic cover 423 and includes a bracket body 4211 and a connecting portion 4213. The bracket body 4211 is at least partially arranged inside the inner wall, the connecting portion 4213 is arranged in the connecting hole 4230, and the bracket lead hole 4202 is arranged on the connecting portion 4213.

[0111] 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 improved, and by setting the connection part 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 molding method can be, for example, injection molding, compression molding, and thermoplastic molding, etc., of course, it can also be other methods.

[0112] Alternatively, if Figure 2 , Fig.10 and Fig.15As shown, in some embodiments, the speaker assembly 3 includes a bone conduction speaker 40, the bone conduction speaker 40 includes a movement housing 41, a vibration face assembly 43, a first vibration plate 45, and a transducer device 42. The movement housing 41 includes a bottom wall 411 and a peripheral side wall 412 connected to the bottom wall 411 to form an accommodating space 410 with an open end. The transducer device 42 is placed in the accommodating space 410 through the open end 413 of the movement housing 41. The transducer device 42 includes a bracket 421, a first vibration plate 45, and a transducer device 42. The 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 assembly 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 assembly 43 is assembled and fixed on the bracket 421.

[0113] By setting a first vibration transmission sheet 45 to connect the bracket 421 and the movement housing 41, the transducer device 42 is elastically suspended in the movement housing 41, that is, the relative position between the transducer device 42 and the movement housing 41 can change, and the transducer device 42 can reduce the vibration transmission to the movement housing 41 by vibrating in the accommodating space 410, thereby reducing the sound leakage caused by the vibration of the movement housing 41. And 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, so that the speaker component 3 can convert the electrical signal into mechanical vibrations of different frequencies, and use the vibration transmission face-attaching component 43 to achieve contact with the cheekbones of the user's face to directly conduct sound, while achieving a good sound transmission effect. Increase the structural stability and reliability, effectively improve the sound quality of the earphone 1. Optionally, the vibration transmission face-attaching component 43 and the bracket 421 are plug-in, adhesive or screw-connected, and of course, other matching methods can also be used.

[0114] Furthermore, since the first vibration transmission plate 45 is installed in a suspended manner, when assembling other components, it is easy for the first vibration transmission plate 45 to undergo elastic deformation and cause installation misalignment. 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 plate 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, a 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 plate 45, effectively improving the accuracy of positioning and installation, effectively reducing the difficulty of assembly, and effectively improving assembly efficiency and assembly yield.

[0115] Alternatively, if Fig.16 As shown, 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.

[0116] When observed along the vibration direction z1 of the transducer device 42, the bone conduction speaker 40 can be in an elliptical shape, an olive shape, or other shapes. The long axis direction LD0 is the direction of the longest line segment that can be 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, and the short axis direction SD0 is the direction of the shortest line segment that can be obtained by connecting two points on the outer edge of the bone conduction speaker 40 through the center point on the cross section. The two through holes 4110 are arranged at intervals along the long axis direction LD0, compared with being arranged along other directions, so that a larger installation operation space can be provided for the subsequent insertion of the support fixture, and the bracket 421 can be supported more stably, so that the bracket 421 and the first vibration transmission plate 45 maintain good balance and stability during assembly, and the stability and reliability of the assembly process of the bone conduction speaker 40 are effectively improved.

[0117] Alternatively, if Fig.16 As shown, 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.

[0118] If the above-mentioned area ratio is too small, the support fixture 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 fixture. 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 fixture 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 exported 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.

[0119] Alternatively, if Fig.15 and Fig.16 As shown, the bottom wall 411 is also provided with a mounting hole 4111 disposed 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 the 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.

[0120] Alternatively, if Fig.16 As shown, the overlapping portion S12 of 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 of ​​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 of ​​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 ratio, 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 the assembly efficiency and assembly yield.

[0121] Alternatively, if Fig.11 As shown, the transducer device 42 also includes a magnetic cover 423, which is cylindrical and has a connecting hole 4230 connecting the inner wall and the outer wall of the magnetic cover 423 along the radial direction of the magnetic cover 423. The bracket 421 is formed on the magnetic cover 423 and includes a bracket 421 body and a connecting portion 4213. The bracket 421 body is at least partially arranged inside the inner wall, and the connecting portion 4213 is arranged in the connecting hole 4230. The through hole 4110 is arranged to be opposite to the bracket 421 body.

[0122] 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 arranged relative 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.

[0123] Alternatively, if Fig.10 and Fig.15 As shown, 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 greater than the radial dimension of the outer ring fixing portion 452.

[0124] 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, and 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 prevented from being exposed to the outside, which is beneficial to improving the structural integrity of the bone conduction speaker 40, facilitating improving the comfort of the earphone 1 in contact with the cheekbone of the user's face 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.

[0125] Alternatively, if Fig.10 and Fig.15 As shown, the vibration transmission face assembly 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 by molding, and the edge area of ​​the soft vibration transmission part 432 is fixed to the hard bracket 433 by molding, 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.

[0126] By fitting and fixing the middle area of ​​the soft vibration transmitting member 432 on the vibration plate 431 by molding, and fixing the edge area of ​​the soft vibration transmitting member 432 on the hard bracket 433 by molding, 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 and matched along the spacing direction, and the hard bracket 433 is connected to the movement housing 41. While not affecting the suspension installation of the transducer device 42, it is convenient for the bracket 421 to transmit the vibration to the vibration plate 431, and further transmit it to the user, while achieving a good sound transmission effect, the structural stability and reliability are increased, and the sound quality of the earphone 1 is effectively improved.

[0127] Alternatively, if Fig.10 and Fig.15 As shown, the inner ring fixing portion 451 is configured to be plugged into and matched with the bracket 421 and clamped between the bracket 421 and the vibration plate 431. The structure is simple, which is convenient for reducing the difficulty of assembly and simplifying the assembly process, thereby improving the assembly efficiency and the assembly yield.

[0128] Alternatively, if Fig.10 and Fig.15 As shown, the bracket 421 is provided with a first connector 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 are arranged around and spaced around the periphery of the first connector 4203; 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 are arranged around and spaced around the periphery of the exposed hole 4501; the first 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 4311 are provided on the vibration plate 431, and the plurality of second connector 4311 are arranged around and spaced around the periphery of the second connector pin 4310; the second connector pin 4310 is plug-matched with the first connector 4203, and the first connector pin 4204 is plug-matched with the second connector 4311.

[0129] By setting the second connector 4310 to be plugged into and matched with the first connector hole 4203 and the first connector 4204 to be plugged into and matched with 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 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 achieved, which effectively simplifies the structure, reduces the difficulty of assembly, and is beneficial to improving the fixing effect between the bracket 421, the first vibration transmission piece 45 and the vibration plate 431, and effectively improving the connection stability.

[0130] Alternatively, if Fig.10 and Fig.15 As shown, the bracket 421 body is also provided with a third connector post 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 post 4310, and the third connector post 4205 is plugged into and matched with the third connector hole 4312.

[0131] By providing a third plug-in coupling column 4205 and a third plug-in hole 4312, the bracket 421 and the vibration plate 431 are further connected and fixed, thereby effectively improving the connection stability and reliability.

[0132] like Figure 3 As shown, in some embodiments, the headset 1 may include a speaker assembly 3 and a wearing assembly 2 connected to the speaker assembly 3, and the wearing assembly 2 can be used to position the speaker assembly 3 in the facial area in front of the user's tragus when worn. The front side of the tragus refers to the side of the tragus facing the nose. The speaker assembly 3 can 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.

[0133] In some embodiments, Figure 2 As shown, the speaker assembly 3 may include a bone conduction speaker 40. The bone conduction speaker 40 is used to convert an electrical signal containing audio information into a vibration signal. The bone conduction speaker 40 may fit the face area in front of the tragus of the user so that the bone conduction speaker 40 can transmit the vibration signal containing audio information to the user.

[0134] Furthermore, if Figure 4 As shown, 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.

[0135] like Fig.17As shown, 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 another along the axial direction Ax2 of the magnetic circuit system 426, and adjacent annular magnets 4261 may be arranged with polarities repelling each other along the axial direction Ax2. The clamp 427 may be arranged to clamp two outer end surfaces of the magnetic circuit system 426 that are away from each other along the axial direction Ax2. Fig.17 Indicated by the arrow in Ax2.

[0136] Specifically, after the transducer device 42 is powered on, the magnetic circuit system 426 can generate vibrations 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 transmission face-attachment assembly 43 to vibrate.

[0137] Adjacent annular magnets 4261 are arranged with polarities repelling each other along the axial direction Ax2, so that the entire magnetic circuit system 426 can obtain a larger magnetic field and enhance the magnetic field effect of the magnetic gap. However, adjacent annular magnets 4261 are easily repelled and displaced due to their magnetic repulsion. 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 easily displaced whether in motion or at rest, which may easily cause the internal components of the transducer device 42 to loosen.

[0138] Alternatively, if Fig.17 As shown, the clamp 427 can be configured to clamp two sides of at least two annular magnets 4261 that are away from each other along the axial direction Ax2. Therefore, the clamp 427 can fix at least two annular magnets 4261 at two sides of at least two annular magnets 4261 that are away from each other, so as to reduce the displacement of at least two annular magnets 4261 along the axial direction Ax2 due to polar repulsion, vibration, etc.

[0139] Therefore, a clamp 427 is provided on the two outer end surfaces of the magnetic circuit system 426 which are opposite to each other, so as to limit the relative displacement between at least two annular magnets 4261, so that the transducer device 42 is not easy to loosen and cause the 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.

[0140] In some embodiments, Fig.17 and Fig.18As shown, the magnetic circuit system 426 may further include at least three annular magnetic conductive plates 4264, and the annular magnetic conductive plates 4264 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 placed, and the annular magnets 4261 can be separated by the annular magnetic conductive plates 4264, and each annular magnet 4261 is sandwiched between two adjacent annular magnetic conductive plates 4264.

[0141] For example, the number of the annular magnetic conductive plates 4264 can be three, and the number of the annular magnets 4261 can be two. Two of the annular magnetic conductive plates 4264 are arranged on both sides of the two annular magnets 4261 along the axial direction Ax2, and the other annular magnetic conductive plate 4264 is arranged in the middle of the two annular magnets 4261. Through the above arrangement, the annular magnetic conductive plates 4264 can be used to better arrange and fix at least two annular magnets 4261, and the magnetic induction lines of the magnets can be concentrated on the magnetic gap between the annular magnets 4261, thereby improving the effect of the magnetic field of the magnetic gap and improving the sensitivity of the magnetic circuit system 426.

[0142] In some embodiments, Fig.18 and Fig.19 As shown, 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 may abut against an outer end surface of one side of the magnetic circuit system 426, the second abutting portion 4272 may abut against an outer end surface of the other side of the magnetic circuit system 426, and the connecting portion 4273 may be connected between the first abutting portion 4271 and the second abutting portion 4272.

[0143] 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.

[0144] Optionally, the first abutting portion 4271 or the second abutting portion 4272 may abut against an 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 .

[0145] The connecting portion 4273 may be connected between the first abutting portion 4271 and the second abutting portion 4272 to further enhance the limiting effect of the clip 427 .

[0146] With such 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 , and 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 .

[0147] For example, in some embodiments, Fig.18 and Fig.19 As shown, the first abutment portion 4271, the second abutment portion 4272 and the connection portion 4273 are formed by bending a plate and are arranged in a U-shape. The plate bending forming method can facilitate the forming of the clamp 427 layer, and can also simplify the preparation process of the transducer device 42. Moreover, the U-shape arrangement of the clamp 427 can further simplify the structure of the clamp 427, and also make the clamp 427 easy to bend and form. For example, the clamp 427 can be stamped.

[0148] In some embodiments, the clip 427 may be a non-magnetic body. In the transducer 42, the magnetic field on the magnetic circuit system 426 and the electric field of the internal components can work together to make the transducer 42 vibrate, so setting the clip 427 as a non-magnetic body can reduce the interference of the clip 427 on the magnetic field, so that the position of the transducer 42 is more stable and not eccentric, and then the transducer 42 works more stably, so as to ensure the vibration effect of the transducer 42.

[0149] In some embodiments, Figure 18 to Figure 19 As shown, the number of the clamps 427 may be at least two, and at least two clamps 427 are arranged at intervals along the circumference of the magnetic circuit system 426. In some embodiments, at least two clamps 427 are evenly spaced and arranged along the magnetic circuit system 426, so as to limit the relative displacement between the at least two annular magnets 4261, and ensure that the center of gravity of the transducer device 42 is located on the vibration axis, and ensure the stability of the vibration of the transducer device 42. For example, as shown in the figure, the number of the clamps 427 may be two, and the two clamps 427 may be arranged oppositely and along the radial direction of the transducer device 42, so as to clamp the magnetic circuit system 426 on both sides of the transducer device 42, and ensure that the center of gravity of the transducer device 42 is located on the vibration axis.

[0150] Increasing the number of the clamps 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, so as to improve the structural stability and firmness of the transducer device 42.

[0151] In some embodiments, Fig.17 and Fig.19As shown, 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 disposed on the bracket 421 and located inside the magnetic circuit system 426. The connecting portion 4273 may be disposed on the outside of the magnetic circuit system 426.

[0152] The bracket 421 may be disposed inside the at least two annular magnets 4261. The coil 422 may be wound and fixed on the bracket 421 along the radial direction of the bracket 421. The coil 422 corresponds to the at least two annular magnets 4261, so that the electric field of the coil 422 can interact with the magnetic field of the annular magnet 4261 when the coil 422 is powered on.

[0153] 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 where the coil 422 is located to move relative to each other.

[0154] In the embodiment of the present application, the connecting portion 4273 is arranged on the outside of the magnetic circuit system 426. In other words, the clamp 427 is arranged on the outer side of the magnetic circuit system 426 facing away from the bracket 421. Such an arrangement can reduce the gap between the magnetic circuit system 426 and the coil 422 occupied by the bracket 421, thereby making the structure more compact, thereby strengthening the interaction between the magnetic field of the magnetic circuit system 426 and the electric field of the coil 422. Moreover, such a position of the clamp 427 is also convenient for assembling the clamp 427 on the magnetic circuit system 426, which can reduce the difficulty of preparing the transducer device 42.

[0155] Optionally, the number of vibration transmission plates 424 can be two, and the two vibration transmission plates 424 can be arranged in sequence along the axial direction Ax2 of the transducer device 42. The two vibration transmission 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 transmission plate 424 can drive the bracket 421 to move in the axial direction Ax2. And setting two vibration transmission plates 424 to drive the bracket 421 to move in the axial direction Ax2 or 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 42 is more stable.

[0156] In some embodiments, Fig.19 as well as Fig. 20 As shown, the vibration transmission piece 424 may include an inner ring fixing portion 4241 , an outer ring fixing portion 4242 and at least two elastic connecting portions 4243 .

[0157] The outer ring fixing part 4242 can be arranged around the periphery of the inner ring fixing part 4241, at least two elastic connecting parts 4243 are connected between the inner ring fixing part 4241 and the outer ring fixing part 4242, the inner ring fixing part 4241 is connected to the bracket 421, and the outer ring fixing part 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 part 4242 to vibrate. The outer ring fixing part 4242 is connected to the inner ring fixing part 4241 through at least two elastic connecting parts 4243, so that the vibration transmission piece 424 can elastically constrain the relative movement of the magnetic circuit system 426 and the coil 422, and when the transducer 42 vibrates, the vibration transmission piece 424 can confine the bracket 421 in the magnetic circuit system 426, so that the operation of the transducer 42 can remain stable.

[0158] Furthermore, if Fig. 20 As shown, the outer ring fixing portion 4242 may 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 are configured to abut against the exposed portion of the outer end surface of the magnetic circuit system 426 exposed from the notch 4240 .

[0159] 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.

[0160] In some embodiments, Fig. 20 and Fig.21 As shown, the number of the 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.

[0161] 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, 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, and 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.

[0162] 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 may be 0.14, 0.17, 0.21, etc.

[0163] If the ratio of the total width Wd1 to the perimeter C is too large, the total width Wd1 of the notch is too large, which will affect the structural strength of the vibration-transmitting plate 424. Therefore, by setting the above-mentioned reasonable ratio range, the structural strength of the vibration-transmitting plate 424 can be ensured, so that the vibration-transmitting plate 424 is not easily deformed or broken when the transducer device 42 vibrates, and the clamp 427 can more effectively fix the magnetic circuit system 426 when it contacts the exposed part of the magnetic circuit system 426 through the notch 4240, so that the magnetic circuit system 426 is not easily loosened and the conversion function of the transducer device 42 fails.

[0164] 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 portion of the magnetic circuit system 426 exposed from the notches 4240 through at least two notches 4240.

[0165] For example, the number of the clamps 427 may be two, and the outer ring fixing portion 4242 may be provided with two notches 4240 corresponding to each clamp 427, and the two notches 4240 may be arranged along the axial direction Ax2 of the transducer device 42, wherein one notch 4240 corresponds to one outer end surface of the exposed magnetic circuit system 426, and the other notch 4240 corresponds 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 against the exposed portion of the outer end surface of the magnetic circuit system 426 exposed from the notch 4240.

[0166] The structure of the clamp 427 and the vibration transmission plate 424 is arranged in such a coordinated manner, which can not only make the structure of the energy conversion device 42 more compact, but also reduce the size of the energy conversion device 42 in the axial direction Ax2.

[0167] In some embodiments, Fig.19 and Fig. 22 As shown, 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. 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.

[0168] Among them, the magnetic cover 423 has a certain magnetic conductivity, and the magnetic cover 423 is used to constrain the magnetic field in the transducer device 42. Specifically, the magnetic cover 423 can form a magnetic path with the vibration transmission plate 424 and the magnetic circuit system 426, and the coil 422 is wound around the outside of the magnetic cover 423 to be set in the middle position surrounded by 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, so that the magnetic circuit system 426 and the coil 422 on the bracket 421 can move axially Ax2, thereby causing the transducer device 42 to vibrate.

[0169] In some embodiments, Fig. 22 As shown, the inner ring fixing portion 4241 can be welded and fixed to the outer end surface of the magnetic conductive cover 423, and the outer ring fixing portion 4242 can be welded and fixed to the outer end surface of the magnetic circuit system 426.

[0170] 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.

[0171] The connection between the vibration transmission piece 424 and the magnetic circuit system 426 and the magnetic cover 423 can be strengthened by welding, so as to strengthen the magnetic flux effect between the vibration transmission piece 424 and the magnetic circuit system 426 and the magnetic cover 423 and improve the structural stability of the transducer device 42.

[0172] like Figure 22 to Figure 23 As shown, in some embodiments of the present application, the outer diameter R1 of the annular magnetic conductive plate 4264 may be larger than the outer diameter R2 of the annular magnet 4261 , and the inner diameter r1 of the annular magnetic conductive plate 4264 may be smaller than the inner diameter r2 of the annular magnet 4261 .

[0173] like Fig.23 As shown, the axis of the magnetic circuit system 426 can be as shown. Fig.23As shown by the line ax2 in the middle, the axial direction Ax2 of the magnetic circuit system 426 can be as shown in FIG. Fig.23 The outer diameter R1 of the annular magnetic plate 4264 is as shown in FIG. Fig.23 As shown in the middle distance R1, the outer diameter R2 of the annular magnet 4261 can be Fig.23 The inner diameter r1 of the annular magnetic plate 4264 can be as shown in FIG. Fig.23 As shown in r1, the inner diameter r2 of the annular magnet 4261 is as shown in Fig.23 As shown in r2, r1 is smaller than r2.

[0174] With such arrangement, the size of the annular magnet 4261 in the radial direction can be smaller than that of the annular magnetic conductive plate 4264, and the annular magnet 4261 is arranged in the middle of the annular magnetic conductive plate 4264, so that the annular magnet 4261 can move within a small range within the size of the annular magnetic conductive plate 4264 corresponding to the size exceeding the annular magnet 4261. Moreover, with such arrangement, the processing accuracy of the annular magnetic conductive plate 4264 can be higher than that of the annular magnet 4261, so when the annular magnet 4261 is added, the annular magnetic conductive plate 4264 can be used for positioning, so as to facilitate the accurate addition and assembly of the annular magnet 4261, and to improve the positioning accuracy of the annular magnet 4261.

[0175] In some embodiments, Fig.23 As shown, 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.

[0176] 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 .

[0177] Specifically, if the above ratio is too large, the annular magnet 4261 can have a large movement amplitude in the radial direction. Therefore, when the magnetic circuit system 426 vibrates, the annular magnet 4261 is easily displaced in the radial direction relative to the annular magnetic conductive plate 4264, which will cause the transducer 42 to be eccentric, affecting the vibration effect of the transducer 42. If the above ratio is too small, it is difficult for the annular magnet 4261 to be positioned using the annular magnetic conductive plate 4264, increasing the difficulty of assembling the transducer 42. Therefore, setting the above reasonable ratio range can improve the positioning accuracy between the annular magnet 4261 and the annular magnetic conductive plate 4264, and at the same time can reduce the amplitude of the radial movement of the annular magnet 4261, so as to further fix the position of the annular magnet 4261 in the transducer 42.

[0178] 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.

[0179] 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.

[0180] 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.

[0181] Similarly, if 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 too large, the annular magnet 4261 will easily shift relative to the annular magnetic conductive plate 4264 in the radial direction, causing the transducer 42 to be eccentric, thus affecting the vibration effect of the transducer 42. If the above difference is too small, the annular magnet 4261 will be difficult to position using the annular magnetic conductive plate 4264, increasing the difficulty of assembling the transducer 42.

[0182] Therefore, by setting the difference between the outer diameter R1 of the annular magnetic conductive plate 4264 and the outer diameter R2 of the annular magnet 4261 within the above-mentioned reasonable difference range, 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 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 42.

[0183] 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.

[0184] 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.

[0185] 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.

[0186] 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 radial dimension of the annular magnet 4261 will be too small, thereby reducing the magnetic field strength of the annular magnet 4261 and causing the annular magnet 4261 to be easily displaced 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, it will be difficult for the annular magnet 4261 to be assembled correspondingly with the annular magnetic conductive plate 4264.

[0187] 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, while also reducing the amplitude of the radial movement of the annular magnet 4261 and ensuring the magnetic field strength of the annular magnet 4261.

[0188] 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 may 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 may be 0.03 mm, 0.05 mm, 0.07 mm, etc.

[0189] 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, and the annular magnet 4261 will easily shift significantly in the radial direction, resulting in unstable vibration of the transducer 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 for the annular magnet 4261 to be assembled correspondingly to the annular magnetic conductive plate 4264.

[0190] 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 above reasonable range, the precision of the annular magnetic conductive plate 4264 can be higher than that of the annular magnet 4261, so as to improve the positioning precision of the annular magnet 4261 and facilitate the assembly of the annular magnet 4261. Moreover, such a setting can also ensure the magnetic field strength of the annular magnet 4261, so that the annular magnet 4261 is not prone to large radial displacement, thereby ensuring the vibration effect of the transducer 42, and can also reduce the size of the annular magnet 4261 in the radial direction of the magnetic circuit system 426 to reduce the size of the transducer 42.

[0191] In some embodiments, the axial thickness Hd3 of the annular magnetic conductive plate 4264 may be smaller than the axial thickness Hd2 of the annular magnet 4261. Fig.23 As shown, the axial thickness Hd3 of the annular magnetic conductive plate 4264 can be as follows: Fig.23 As shown in the middle thickness Hd3, the axial thickness Hd2 of the annular magnet 4261 can be as Fig.23 As shown in the figure, the middle thickness Hd2, wherein Hd3 is smaller than Hd2.

[0192] Since the annular magnet 4261 is mainly used as a component to generate a magnetic field, the axial thickness Hd2 of the annular magnet 4261 has certain requirements so that the annular magnet 4261 can generate a corresponding vibration signal. The annular magnetic conductive plate 4264 is mainly used to improve the positioning accuracy of the annular magnet 4261 to facilitate the positioning and installation of the annular magnet 4261. 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, so that the annular magnetic conductive plate 4264 is not easy to interfere with the magnetic field of the annular magnet 4261, thereby further ensuring the vibration effect of the transducer device 42.

[0193] Furthermore, by setting the annular magnetic conductive plate 4264 to have a smaller axial thickness Hd3, the size of the transducer device 42 in the axial direction Ax2 can be reduced, and the positioning accuracy of the annular magnet 4261 can be improved to facilitate the positioning and installation of the annular magnet 4261.

[0194] In some embodiments, Fig.19 As shown, 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 .

[0195] 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.

[0196] The first annular magnet 4262 and the second annular magnet 4263 may be two magnets with opposite polarities. The first annular magnet 4262 and the second annular magnet 4263 with opposite polarities may concentrate the magnetic induction lines in the magnetic gap between the first annular magnet 4262 and the second annular magnet 4263, thereby increasing the effect of the magnetic field of the magnetic gap and thus increasing the sensitivity of the magnetic circuit system 426.

[0197] Since 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 action of the electric field after the transducer device 42 is powered on, 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 to gather the magnetic fields and increase the interaction between the magnetic field and the electric field, thereby improving the vibration effect of the transducer device 42. Moreover, the first annular magnet 4262 is arranged between the second annular magnet 4263 and the first annular magnetic conductive plate 4265, so that the second annular magnet 4263 and the first annular magnetic conductive plate 4265 can more accurately position and fix 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.

[0198] In some embodiments, Fig.17 and Fig.19 As shown, the coil 422 is arranged to overlap with the first annular magnetic conductive plate 4265 along the axial direction Ax2.

[0199] Specifically, the coil 422 and the annular magnet 4261 are arranged correspondingly in the radial direction, and the coil 422 can be energized so that the electrical signal with audio information can pass through the coil 422, and the electric field generated by the coil 422 can act on the magnetic field of the annular magnet 4261, so that the annular magnet 4261 and the coil 422 move relative to each other. Since the annular magnet 4261 is fixed to the annular magnetic conductive plate 4264, the annular magnet 4261 can drive the annular magnetic conductive plate 4264 to vibrate together.

[0200] Alternatively, if Fig.17 and Fig.19 As shown, 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 through the outer ring fixing portion 4242, and is further connected to the first annular magnet 4262 or the second annular magnet 4263 through the second annular magnetic conductive plate 4266 or the third annular magnetic conductive plate 4267.

[0201] Optionally, the vibration transmission piece 424 can be a magnetic conductor, so that the magnetic field of the transducer device 42 can be limited, which can help the magnetic field gather toward the coil 422, increase the magnetic field strength at the coil 422, and improve the vibration effect of the transducer device 42. In addition, the coil 422 can be set in the middle of the magnetic path, so that when the coil 422 is energized, the electric field generated by the coil 422 and the magnetic path interact with each other, so that the coil 422 and the magnetic circuit system 426 move relative to each other, so that the transducer device 42 can achieve the conversion between electrical energy and mechanical vibration.

[0202] 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 the original position relative to the magnetic circuit system 426.

[0203] Optionally, the number of the elastic connection parts 4243 may be four, and 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.

[0204] In some embodiments, Fig.17 and Fig.19 As shown, the clamp 427 can be configured to clamp the outer end surfaces of the second annular magnetic conductive plate 4266 and the third annular magnetic conductive plate 4267 along the axial direction Ax2.

[0205] like Figure 2 As shown, in some embodiments, the speaker assembly 3 may further include an air conduction speaker 50. The air conduction speaker 50 is capable of converting an electrical signal containing relevant audio information into a sound wave signal.

[0206] Specifically, the air conduction speaker 50 is used to provide air conduction sound in a first frequency band, and the bone conduction speaker 40 is used to provide bone conduction sound in a second frequency band, and the second frequency band is at least partially higher than the first frequency band. In other words, the air conduction speaker 50 is used to provide sound in a lower frequency band, and the bone conduction speaker 40 is used to improve the sound in a higher frequency band. In this way, the sound enhancement effect of the speaker assembly 3 can be enhanced, making the low-frequency sound and the high-frequency sound clearer.

[0207] In some embodiments, Fig.24 as well as Fig.25 As shown, the bone conduction speaker 40 may include a movement housing 41 , a first vibration transmitting plate 45 and a transducer device 42 , wherein the first vibration transmitting plate 45 connects the movement housing 41 and the transducer device 42 to suspend the transducer device 42 in the movement housing 41 .

[0208] The transducer 42 is a main device for converting electrical signals into vibration signals in the bone conduction speaker 40. The transducer 42 can be arranged inside the movement housing 41, and the movement housing 41 can relatively fix the transducer 42. The first vibration transmitting piece 45 is used to be confined to vibrate inside the movement housing 41 when the transducer 42 mechanically vibrates, so that the transducer 42 is not easy to fall from the movement housing 41.

[0209] In some embodiments, Fig.25 As shown, 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. The coil 422 is arranged on the bracket 421 and is located inside the magnetic circuit system 426.

[0210] Optionally, the first vibration transmission piece 45 may be a non-magnetic material, and the second vibration transmission piece 424 may be a magnetic material. The material of the first vibration transmission piece 45 may be, for example, a non-magnetic metal material such as stainless steel or copper, or a non-metal material that can meet the corresponding requirements. The second vibration transmission piece 424 may be a metal material with magnetic conductivity, for example, a material containing metal elements such as iron, cobalt, and nickel.

[0211] Among them, since the first vibration transmission piece 45 mainly functions to fix the transducer device 42 in the movement housing 41, the first vibration transmission piece 45 is set as a non-magnetic conductive body, so that the first vibration transmission piece 45 is not easy to attract the magnetic circuit system 426 and produce eccentricity, thereby reducing the influence of the first vibration transmission piece 45 on the vibration effect of the transducer device 42. Moreover, due to its elastic effect, the first vibration transmission piece 45 can suspend the transducer device 42 in the movement housing 41, which can reduce the vibration generated by the transducer device 42 from being transmitted to the movement housing 41, thereby reducing the vibration generated by the movement housing 41, and further reducing the sound leakage.

[0212] The non-magnetic first vibration transmission piece 45 is provided with a non-magnetic conductor, so that the position of the energy conversion device 42 is relatively stable and not eccentric, thereby making the energy conversion device 42 work more stably and generate more stable vibration. On this basis, the second vibration transmission piece 424 is provided with a magnetic conductor, so that the second vibration transmission piece 424 can constrain the magnetic field in the energy conversion device 42, and is conducive to the magnetic field gathering to the coil 422, so as to increase the magnetic field strength at the coil 422, thereby improving the vibration effect of the energy conversion device 42.

[0213] In some embodiments, Fig.26As shown, the first vibration transmission piece 45 may have a long axis direction LD1 and a short axis direction SD1 perpendicular to each other, and the dimension of the first vibration transmission piece 45 along the long axis direction LD1 may be greater than the dimension along the short axis direction SD1. The elastic coefficient of the first vibration transmission piece 45 along the long axis direction LD1 may be set to be greater than 15000 N / m, and / or the elastic coefficient along the short axis direction SD2 may be set to be greater than 6500 N / m.

[0214] Optionally, the elastic coefficient of the first vibration transmission piece 45 can be calculated using the Hooke's law of the material. For example, when measuring the elastic coefficient of the first vibration transmission piece 45 along the long axis direction LD1, one end of the first vibration transmission piece 45 along the long axis direction LD1 can be fixed, and a weight can be hung on the other end along the long axis direction LD1. After the deformation of the first vibration transmission piece 45 along the long axis direction LD1 is stable, the displacement of the end with the weight is measured, and then the elastic coefficient of the first vibration transmission piece 45 along the long axis direction LD1 is calculated based on the mass of the weight and the displacement of the end of the first vibration transmission piece 45 with the weight. The elastic coefficient of the first vibration transmission piece 45 along the short axis direction SD2 can also be measured and calculated with reference to the above method.

[0215] The long axis direction LD1 of the first vibration transmission piece 45 can be as follows: Fig.26 As shown in the direction of the arrow LD1, the dimension of the first vibration transmission piece 45 along the long axis direction LD1 can be represented by the length ld1. Fig.26 As shown in the direction SD1, the dimension of the first vibration transmission piece 45 along the short axis direction SD1 may be shown as a length sd1.

[0216] If the elastic coefficients along the long axis direction LD1 and the short axis direction SD1 are too small, the first vibration transmission piece 45 is likely to be deformed in the long axis direction LD1 and / or the short axis direction SD1, which may cause the transducer 42 to be distorted and vibrate unstably, and further cause the bone conduction speaker 40 to generate noise. However, by setting the elastic coefficients along the long axis direction LD1 and / or the short axis direction SD1 of the first vibration transmission piece 45 to the above numerical ranges, the first vibration transmission piece 45 may have a greater hardness in the long axis direction LD1 and / or the short axis direction SD1, so that the first vibration transmission piece 45 is not likely to be deformed in the corresponding directions, thereby reducing the lateral deformation of the first vibration transmission piece 45 due to the vibration of the transducer 42, reducing the noise generated by the speaker assembly 3 due to the vibration of the first vibration transmission piece 45, and reducing the distorted position of the transducer 42, thereby ensuring the vibration effect of the bone conduction speaker 40 and improving the structural stability of the bone conduction speaker 40.

[0217] For example, the elastic coefficient of the first vibration transmission piece 45 along the long axis direction LD1 can be set to 20000 N / m, 25000 N / m, 30000 N / m. Optionally, the elastic coefficient of the first vibration transmission piece 45 along the short axis direction SD2 can be set to 6500 N / m, 7000 N / m, 8000 N / m.

[0218] In some embodiments, Fig.26 As shown, the first vibration transmission 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 arranged around the periphery of the first inner ring fixing portion 451, 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, and 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 respectively assembled and fixed in a plug-in manner.

[0219] 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. When the first inner ring fixing portion 451 vibrates, the first inner ring fixing portion 451 drives at least two first elastic connecting portions 453 to elastically deform, and at least two first elastic connecting portions 453 can confine the transducer device 42 in the movement housing 41. When the transducer device 42 stops vibrating, at least two first elastic connecting portions 453 can drive the transducer device 42 to return to its original position by restoring the first inner ring fixing portion 451.

[0220] Furthermore, 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 assembled and fixed by plugging and connecting, which can facilitate the installation of the first vibration transmission plate 45, thereby simplifying the installation of the speaker assembly 3, improving the assembly efficiency, and reducing the difficulty of assembling the speaker assembly 3.

[0221] For example, in some embodiments, the number of the first elastic connection parts 453 can be four, and the four first elastic connection 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 connection parts 453 can be elastically deformed together to limit the first inner ring fixing part 451, so that the first inner ring fixing part 451 and the first outer ring fixing part 452 are subjected to more balanced forces, so as to improve the structural stability of the first vibration transmission plate 45.

[0222] In some embodiments, Figure 25 to Figure 27As shown, the bone conduction speaker 40 may further include a vibration plate 431. The bracket 421 may be provided with a first plug hole 4203 and a plurality of first plug posts 4204 on the side facing the first inner ring fixing portion 451, and the plurality of first plug posts 4204 surround and are spaced apart on the periphery of the first plug hole 4203. The first inner ring fixing portion 451 may be 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, the first plug hole 4203 is exposed through the exposed hole 4501, and the first plug posts 4204 are inserted into the corresponding assembly holes 4502.

[0223] 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 surrounded and spaced apart on the periphery of the second connector pin 4310. The second connector pin 4310 is plugged in and matched with the first connector hole 4203. The first connector pin 4204 is plugged in and matched with the second connector hole 4311.

[0224] 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 piece 45 can achieve a stronger connection with the transducer device 42, thereby further improving the structural stability of the bone conduction speaker 40.

[0225] Furthermore, when the transducer device 42 vibrates mechanically, 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 .

[0226] Furthermore, if Figures 17 to 19 As shown, the second vibration transmission piece 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 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.

[0227] In some embodiments, Fig.19As shown, the second inner ring fixing portion 4241 can be welded and fixed to the outer end surface of the magnetic cover 423, and the second outer ring fixing portion 4242 can be welded and fixed to the outer end surface of the magnetic circuit system 426. The welding method can facilitate the installation of the second vibration transmission piece 424 on the outer end surface of the magnetic circuit system 426 and the outer end surface of the magnetic cover 423, which can simplify the assembly process of the energy conversion device 42. In addition, the welding connection method can strengthen the connection strength between the second vibration transmission piece 424 and the magnetic circuit system 426 and the magnetic cover 423, making the structure of the energy conversion device 42 more solid and stable.

[0228] In some embodiments, the coverage of the outer end surface of the magnetic circuit system 426 by the second outer ring fixing portion 4242 may be greater than or equal to 60%, and / or the coverage of the outer end surface of the magnetic conductive cover 423 by the second inner ring fixing portion 4241 may be greater than or equal to 60%.

[0229] 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.

[0230] 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 of the outer end surface of the second outer ring fixing portion 4242 and 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 of the outer end surface of the second inner ring fixing portion 4241 and the magnetic conductive cover 423 in the axial direction Ax2 of the transducer device 42.

[0231] For example, the coverage of the second outer ring fixing portion 4242 on the outer end surface of the magnetic circuit system 426 can be 70%, 80%, or 90%. Optionally, the coverage of the second inner ring fixing portion 4241 on the outer end surface of the magnetic conductive cover 423 can be 70%, 80%, or 90%.

[0232] If the coverage of the second outer ring fixing part 4242 on the outer end surface of the magnetic circuit system 426 is too small, the fixing of the second outer ring fixing part 4242 and the magnetic circuit system 426 will be unstable, and the magnetic conductivity of the second vibration transmission piece 424 will be reduced, and the effect of enhancing the magnetic field strength of the magnetic gap will be weaker. Therefore, setting the coverage of the second outer ring fixing part 4242 on the outer end surface of the magnetic circuit system 426 to the above value can ensure the fixing effect of the second outer ring fixing part 4242 and the magnetic circuit system 426, and can also strengthen the magnetic conductivity of the second vibration transmission piece 424, thereby enhancing the magnetic field strength of the magnetic gap.

[0233] If the coverage of the outer end surface of the magnetic shield 423 by the second inner ring fixing part 4241 is too small, the fixing effect of the outer end surface of the second inner ring fixing part 4241 and the magnetic shield 423 will be poor, and the magnetic field confinement effect of the second vibration transmitting piece 424 will be reduced. Therefore, by setting the coverage of the outer end surface of the magnetic circuit system 426 by the second outer ring fixing part 4242 to the above value, the connection between the second vibration transmitting piece 424 and the magnetic circuit system 426 and the magnetic shield 423 can be strengthened, so that the second vibration transmitting piece 424 is not easy to be separated from the magnetic circuit system 426 and the magnetic shield 423 during the movement, thereby improving the structural stability of the bone conduction speaker 40 and the magnetic field confinement effect.

[0234] In some embodiments, Fig.28 as well as Fig.29 As shown, when observed along the vibration direction of the transducer device 42, at least two second outer elastic connecting parts 4243 may have a first area S3, 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 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.

[0235] The first area S3 can be Fig.29 As shown in the shaded portion in FIG. , the second area S4 can be Fig.28 The shaded area in the figure is shown.

[0236] Specifically, at least two second outer elastic connecting parts 4243 are disposed in the annular region between the outer edge of the second inner ring fixing part and the inner edge of the second outer ring fixing part 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 parts 4243 to the annular region.

[0237] If the first area S3 is too large, so that the ratio of the first area S3 to the second area S4 is too large, the elasticity of at least two second outer elastic connecting parts 4243 will be reduced, thereby affecting the vibration effect of the transducer device 42. If the first area S3 is too small, so that the ratio of the first area S3 to the second area S4 is too small, the magnetic field gathering effect of at least two second outer elastic connecting parts 4243 will be affected, resulting in a decrease in the magnetic field confinement effect of the second vibration transmission plate 424.

[0238] Therefore, by setting the area ratio of the at least two second outer elastic connection parts 4243 to the annular area between 0.2 and 0.7, the at least two second outer elastic connection parts 4243 can have a certain magnetic field gathering effect to constrain the gathering magnetic field. At the same time, limiting the area of ​​the at least two second outer elastic connection parts 4243 can also further limit the elasticity of the at least two second outer elastic connection parts 4243, so that the at least two second outer elastic connection parts 4243 will not affect the vibration effect of the transducer device 42 due to excessive elasticity.

[0239] 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 region 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.

[0240] 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.

[0241] In some embodiments, Fig.29 As shown, the second outer elastic connection part 4243 may include a first connection part 4244, a second connection part 4245 and an elastic part 4246. The first connection part 4244 may be connected to the outer edge of the second inner ring fixing part 4241, the second connection part 4245 may be connected to the inner edge of the second outer ring fixing part 4242, and the elastic part 4246 is located between the first connection part 4244 and the second connection part 4245. The elastic part 4246 may be spaced from the outer edge of the second inner ring fixing part 4241 and the inner edge of the second outer ring fixing part 4242, respectively, and the spacing distance is between 0.1 mm and 0.4 mm. For example, the spacing distance may be 0.17 mm, 0.26 mm, 0.29 mm, 0.35 mm, etc. On a plane perpendicular to the axial direction Ax2, the width of the elastic part 4246 may be 0.28 mm, 0.34 mm, 0.41 mm, etc.

[0242] Specifically, during the elastic movement of the second outer elastic connection part 4243, the area where elastic deformation mainly occurs is the elastic part 4246. The spacing distance between the elastic part 4246 and the outer edge of the second inner ring fixing part 4241 and the inner edge of the second outer ring fixing part 4242 will affect the size of the elastic part 4246. Therefore, setting the spacing distance between 0.1mm and 0.4mm can make the elastic part 4246 have a larger volume, so that the magnetic field can be effectively gathered, and the elastic part 4246 can also be made not easy to contact with the second inner ring fixing part 4241 and the second outer ring fixing part 4242. In particular, when the elastic part 4246 undergoes elastic deformation and drives the second inner ring fixing part 4241 to vibrate, the elastic part 4246 and the second inner ring fixing part 4241 and the second outer ring fixing part 4242 are not easy to interfere with each other, so that the vibration effect of the transducer device 42 can be guaranteed.

[0243] In some embodiments, Fig.29 As shown, 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 55000 N / m, and / or the elastic coefficient along the short axis direction SD2 is set to be greater than or equal to 9500 N / m.

[0244] The long axis direction LD2 of the second vibration-transmitting plate 424 can be as follows: Fig.29 As shown in the direction of the arrow LD2, the size of the second vibration transmission piece 424 along the long axis direction LD2 can be shown as length ld2. Fig.29 As shown by the arrow direction SD2, the dimension of the second vibration transmission piece 424 along the short axis direction SD2 may be shown by the length sd2.

[0245] Specifically, if the elastic coefficients of the second vibration transmitting piece 424 in the long axis direction LD2 and the short axis direction SD2 are too small, the second vibration transmitting piece 424 is likely to deform when the transducer device 42 vibrates, which may cause the transducer device 42 to deviate from its position and cause unstable vibration, thereby easily causing the bone conduction derivative 40 to generate noise.

[0246] Therefore, by setting the elastic coefficient of the second vibration transmission piece 424 along the long axis direction LD2 to be greater than or equal to 55000 N / m, and setting the elastic coefficient along the short axis direction SD2 to be greater than or equal to 9500 N / m, the second vibration transmission piece 424 can have a certain hardness, so as to separate the magnetic shield 423 from the magnetic circuit system 426, and prevent the magnetic shield 423 and the magnetic circuit system 426 from being adsorbed together as much as possible. At the same time, by setting the elastic coefficient of the second vibration transmission piece 424 in the long axis direction LD2 and the short axis direction SD2 to be relatively large, the elastic part 4246 of the second vibration transmission piece 424 is not likely to be broken or deformed due to the high vibration intensity during the vibration process, thereby improving the reliability and structural stability of the second vibration transmission piece 424, and ensuring the vibration effect of the transducer device 42.

[0247] For example, the elastic coefficient of the second vibration transmission piece 424 along the long axis direction LD2 can be set to 60000 N / m, 70000 N / m, 80000 N / m, etc. Optionally, the elastic coefficient of the second vibration transmission piece 424 along the short axis direction SD2 can be set to 10000 N / m, 20000 N / m, 25000 N / m, etc.

[0248] In some embodiments, Figure 2 and Fig.25 As shown, the bone conduction speaker 40 may further include a vibration-transmitting face-attaching component 43 and an auxiliary face-attaching component 44.

[0249] The vibration face-attaching component 43 may include a vibration plate 431 and a soft vibration transmitting member 432. The vibration plate 431 is connected to the transducer device 42, and the soft vibration transmitting member 432 may be disposed on the vibration plate 431. When the transducer device 42 vibrates, the bracket 421 in the transducer device 42 further drives the vibration plate 431 to vibrate, and the vibration plate 431 can also further drive the soft vibration transmitting member 432 to vibrate to generate a vibration signal.

[0250] Furthermore, the auxiliary face-attaching component 44 may also include a hard support member 441 and a soft fitting member 442, wherein the hard support member 441 is connected to the movement housing 41, and the soft fitting member 442 is arranged on the hard support member 441, and the soft fitting member 442 and the soft vibration transmission member 432 are used to contact the face 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 arranged on a side of the hard support member 441 that is away from the movement housing 41.

[0251] Among them, the hard supporting 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.

[0252] The soft fitting member 442 and the soft vibration transmitting member 432 can contact the facial area in front of the tragus together, thereby increasing the contact area between the speaker assembly 3 and the human face, thereby increasing the wearing comfort of the speaker assembly 3.

[0253] 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 may be 0.5 mm, 0.6 mm, or 0.8 mm.

[0254] Optionally, the softness of the soft fitting part 442 may be greater than that of 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 to be 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.

[0255] The above descriptions are merely embodiments of the present application and are not intended to 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 speaker assembly, characterized in that: The speaker assembly includes a bone conduction speaker, and the bone conduction speaker includes a movement housing, a first vibration transmission piece, and a transducer device, wherein the first vibration transmission piece is connected to the movement housing and the transducer device to suspend the transducer device in the movement housing; The energy conversion device further includes a bracket, a coil, a magnetic circuit system and a second vibration transmission piece, wherein the second vibration transmission piece is connected to the magnetic circuit system and the bracket to elastically suspend the magnetic circuit system on the periphery of the bracket, and the coil is arranged on the bracket and located inside the magnetic circuit system. The first vibration transmission piece is a non-magnetic conductive body, and the second vibration transmission piece is a magnetic conductive body.

2. The loudspeaker assembly according to claim 1, characterized in that The speaker assembly also includes an air conduction speaker, which is used to provide air conduction sound in a first frequency band, and the bone conduction speaker is used to provide bone conduction sound in a second frequency band, and the second frequency band is at least partially higher than the first frequency band.

3. The loudspeaker assembly according to claim 1 or 2, characterized in that: The first vibration transmission plate has a long axis direction and a short axis direction which are perpendicular to each other. The dimension of the first vibration transmission plate along the long axis direction is larger than the dimension along the short axis direction. The elastic coefficient of the first vibration transmission plate along the long axis direction is set to be greater than 15000 N / m, and / or the elastic coefficient along the short axis direction is set to be greater than 6500 N / m.

4. The loudspeaker assembly according to claim 1 or 2, characterized in that: The bone conduction speaker also includes a vibration-transmitting face-attaching component and an auxiliary face-attaching component. The vibration-transmitting face-attaching component includes a vibration plate and a soft vibration-transmitting component. The vibration plate is connected to the transducer device, and the soft vibration-transmitting component is arranged on the vibration plate. The auxiliary face-attaching component includes a hard supporting component and a soft fitting component. The hard supporting component is connected to the movement housing, and the soft fitting component is arranged on the hard supporting component. The soft fitting component and the soft vibration-transmitting component are used to contact the facial area in front of the tragus when worn. In a natural state, the protruding height of the soft fitting component relative to the soft vibration-transmitting component is between 0.4 and 1 mm.

5. The loudspeaker assembly according to claim 1, characterized in that The first vibration transmission plate includes a first inner ring fixing portion, a first outer ring fixing portion and at least two first elastic connecting portions, the first outer ring fixing portion is arranged around the periphery of the first inner ring fixing portion, the at least two first elastic connecting portions are connected between the first inner ring fixing portion and the first outer ring fixing portion, the first outer ring fixing portion and the movement housing, and the first inner ring fixing portion and the bracket are respectively assembled and fixed by means of plug-in.

6. The loudspeaker assembly according to claim 5, characterized in that The bone conduction speaker also includes a vibration plate. A first connector hole and a plurality of first connector posts are provided on the side of the bracket facing the first inner ring fixing portion. The plurality of first connector posts are arranged around and spaced apart on the periphery of the first connector hole. The first inner ring fixing portion is provided with an exposed hole and a plurality of assembly holes. 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. The first connector post is inserted into the corresponding assembly hole. A second connector post and a plurality of second connector holes are provided on the vibration plate. The plurality of second connector holes are arranged around and spaced apart on the periphery of the second connector post. The second connector post is plug-matched with the first connector hole, and the first connector post is plug-matched with the second connector hole.

7. The loudspeaker assembly according to claim 1, characterized in that The energy conversion device also includes a magnetically conductive cover, which is cylindrical and connected to the bracket. The coil is wound around the periphery of the magnetically conductive cover. The second vibration transmission plate includes a second inner ring fixing portion, a second outer ring fixing portion and at least two second outer elastic connecting portions. The second outer ring fixing portion is arranged around the periphery of the second inner ring fixing portion. The at least two second outer elastic connecting portions are connected between the second inner ring fixing portion and the second outer ring fixing portion. The second outer ring fixing portion is connected to the outer end surface of the magnetic circuit system, and the second inner ring fixing portion is connected to the outer end surface of the magnetically conductive cover.

8. The loudspeaker assembly according to claim 7, characterized in that The coverage of the outer end surface of the magnetic circuit system by the second outer ring fixing portion is greater than or equal to 60%, and / or the coverage of the outer end surface of the magnetic conductive cover by the second inner ring fixing portion is greater than or equal to 60%.

9. The loudspeaker assembly according to claim 7, characterized in that When observed along the vibration direction of the transducer device, the at least two second outer elastic connecting parts have a first area, the annular area between the outer edge of the second inner ring fixing part and the inner edge of the second outer ring fixing part has a second area, and the ratio of the first area to the second area is between 0.2 and 0.

7.

10. The loudspeaker assembly according to claim 9, characterized in that The second outer elastic connecting part includes a first connecting part, a second connecting part and an elastic part, respectively. The first connecting part is connected to the outer edge of the second inner ring fixing part, and the second connecting part is connected to the inner edge of the second outer ring fixing part. The elastic part is located between the first connecting part and the second connecting part. The elastic part is spaced from the outer edge of the second inner ring fixing part and the inner edge of the second outer ring fixing part, respectively, and the spacing distance is between 0.1mm and 0.4mm.

11. The loudspeaker assembly according to claim 9, characterized in that The second inner ring fixing portion is fixed by welding to the outer end surface of the magnetic conductive cover, and the second outer ring fixing portion is fixed by welding to the outer end surface of the magnetic circuit system.

12. The loudspeaker assembly according to claim 7, characterized in that The second vibration transmission plate has a long axis direction and a short axis direction, the dimension of the second vibration transmission plate along the long axis direction is larger than the dimension along the short axis direction, the elastic coefficient of the second vibration transmission plate along the long axis direction is set to be greater than or equal to 55000 N / m, and / or the elastic coefficient along the short axis direction is set to be greater than or equal to 9500 N / m.

13. A headset, characterized in that: The earphone comprises a speaker assembly as described in any one of claims 1-12 and a wearing assembly connected to the speaker assembly, wherein the wearing assembly is used to position the speaker assembly in the facial area in front of the user's tragus when in a wearing state.

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