CN208353545U - Telescopic wear-type bone conduction earphone - Google Patents

Abstract

The utility model discloses a kind of telescopic wear-type bone conduction earphone, it the bone-conduction device of sound propagated by bone and with the bone-conduction device and can wear in the bone conduction earphone on user head to be a kind of；The scalable wear-type bone conduction earphone of the utility model includes an at least bone-conduction device, the first ear-hang, the second ear-hang, and supporting element, it is set between the supporting element and first ear-hang by stretching structure, and different users are suitable for because of different head dummy sizes or wear position, it adjusts bone conduction earphone effectively moderately and reaches fixed, it more can be closely covered in the face bone of user face, and then allow and sound is directly reached into more preferably vibration transmission effect by the temporal bone on user head.

Description

Telescopic wear-type bone conduction earphone

Technical field

The utility model relates to a kind of telescopic wear-type bone conduction earphone, in particular to one kind propagates sound by bone The ear conducting structure of sound and it is suitable for the telescopic wear-type bone conduction earphone that different users wear in head.

Background technique

Headphone device is a kind of by electroacoustic transfer principle, and the electric signal that source of sound exports is converted to what human ear can be heard The acoustic product of sound, Fig. 1 are that conventional earphone structure uses schematic diagram, and general Headphone structure A1 is to generate sound by its vibrating diaphragm Frequency A2 or sound wave make people hear sound through auricle A3, external auditory canal A4 to auditory nerve A5, auditory center；However, traditional ear Machine structure A1 is for being easy that user is made to can't hear sound under dysaudia more severe case or noisy environments；Furthermore tradition Headphone structure A1 often presented in a manner of earplug, be also easy to make user to feel apparent uncomfortable, be used for a long time to be easy shadow Ring the ear-drum function of user.

It in order to solve the problem above-mentioned, is then developed with Headphone structure prepared by bone-conduction device, Fig. 2 and Fig. 3 difference Schematic diagram (two) are used using schematic diagram (one) and traditional bone conductors Headphone structure for traditional bone conductors Headphone structure, mainly It is the vibration wave B2 for converting sound to using vibration device B1 different frequency, via head skull, osseous labyrinth, inner ear lymph Transmitting, spiral organ, auditory nerve B3, auditory center mode transmit sound wave to enable user's acoustic, save many traditional ears The step of transmitting using ear canal B4 of machine sound wave, and sound wave will not influence other people because of spreading in air；However, due to The vibration device B1 has no any extra means, therefore the vibration device B1 also has while transmitting audio by bone The vibration wave B2 of many scatterings, can not be completely into the auditory nerve B3 of people, so that vibration dress toward fleeing from all directions Setting B1 can not adjust and fixed position；Therefore, how to pass through the hardware design of innovation, effectively solve traditional bone conductors device because of nothing The shortcomings that method adjustment is with fixed position, is that the exploitation dealer of bone conduction earphone structure related industry and related researcher need to continue Make great efforts the project for overcoming with solving.

Utility model content

Purpose of utility model: for overcome the deficiencies in the prior art, the purpose of this utility model is to provide one kind to stretch The wear-type bone conduction earphone of contracting provides a kind of telescopic wear-type bone conduction earphone for propagating sound by bone, can fit Different users are answered because of different head dummy sizes or wear position, bone conduction earphone is made effectively moderately to adjust and more can reach close The fixed face bone for being covered in user face.

Purpose according to the present utility model proposes a kind of telescopic wear-type bone conduction earphone, including at least having at least One bone-conduction device, the first ear-hang, at least one second ear-hang, and an at least supporting element；First ear-hang is in the shape of semicircular； Second ear-hang is set to the end of first ear-hang, and the bone-conduction device is correspondingly arranged in second ear-hang Inner end；The supporting element links first ear-hang and second ear-hang respectively, and the supporting element and first ear Stretching structure is equipped between extension.

Preferably, stretching structure includes slide bar and sliding slot, and the slide bar wears the sliding slot, and described slide bar one end is fixed In the first ear-hang outboard end, the slide bar another end links the supporting element.

Preferably, sliding slot is equipped with stopper section.

Preferably, stretching structure includes the first teeth portion and the second teeth portion, and the first teeth portion wears the second teeth portion, first tooth Portion, which has continuous sawtooth and second teeth portion to correspond to first teeth portion, continuous sawtooth, and first teeth portion is set on described Inside first ear-hang one end, and second teeth portion links the supporting element.

Preferably, bone-conduction structure include at least flexible layer, acoustic frequency response layer, shell, vibration unit, flexible circuit, High damping vibration attenuation layer and nanometer sound absorbing layer；Acoustic frequency response stacking is set on flexible layer；Shell is set on acoustic frequency response layer, Shell is in closed hollow ㄇ shape, and inside is formed with vacuum sound insulation layer, and encloses and be equipped between shell and acoustic frequency response layer Accommodating space；Vibration unit is set in accommodating space and is located on acoustic frequency response layer, and wherein vibration unit is to generate audio； The one end of flexible circuit is electrically connected vibration unit, and the other end extends to the outside of shell and is electrically connected connector； High damping vibration attenuation layer is set in accommodating space, and high damping vibration attenuation layer coats vibration unit；Nanometer sound absorbing layer is set to accommodating In space, and it is located between high damping vibration attenuation layer and shell.

The wear-type bone conduction earphone of the utility model mainly passes through the temporal bone on user head directly by the vibration of sound The auditory nerve of user is transferred to form the design of the principle of the sense of hearing, including an at least bone-conduction device, the first ear-hang, second Ear-hang and supporting element are set between the supporting element and first ear-hang by stretching structure, and the second ear-hang can be fitted Different users are answered because of different head dummy sizes or wear position, bone conduction earphone is adjusted effectively moderately and reaches fixed, more may be used It closely is covered in the face bone of user face, and then allows and sound is directly reached into more preferably vibration transmitting by the temporal bone on user head Effect.

Detailed description of the invention

Fig. 1: conventional earphone structure uses schematic diagram；

Fig. 2: traditional bone conductors Headphone structure uses schematic diagram (one)；

Fig. 3: traditional bone conductors Headphone structure uses schematic diagram (two)；

A kind of Fig. 4: stereoscopic schematic diagram of stretching structure of the telescopic wear-type bone conduction earphone of the utility model；

A kind of Fig. 5: structure sectional view of stretching structure of the telescopic wear-type bone conduction earphone of the utility model；

Fig. 6: the stereoscopic schematic diagram of the telescopic wear-type bone conduction earphone another kind stretching structure of the utility model；

Fig. 7: the structure sectional view of the telescopic wear-type bone conduction earphone another kind stretching structure of the utility model；

A kind of Fig. 8: the schematic perspective view of preferred embodiment of the utility model bone-conduction device；

A kind of Fig. 9: the overall structure cross-sectional view of preferred embodiment of the utility model bone-conduction device；

A kind of Figure 10: the build stack cross-sectional view of preferred embodiment of the utility model bone-conduction device；

A kind of Figure 11: the structural decomposition diagram of preferred embodiment of the utility model bone-conduction device；

A kind of Figure 12: the flexible circuit structural schematic diagram of preferred embodiment of the utility model bone-conduction device；

Figure 13: the overall structure cross-sectional view of second of preferred embodiment of the utility model bone-conduction device；

A kind of Figure 14: the schematic perspective view of preferred embodiment of the bone conduction earphone of the utility model tool support ear-hang；

A kind of Figure 15: the stereochemical structure signal of preferred embodiment of the telescopic wear-type bone conduction earphone of the utility model Figure；

A kind of Figure 16: the connector connection signal of preferred embodiment of the telescopic wear-type bone conduction earphone of the utility model Figure；

Figure 17: the stereochemical structure signal of the third preferred embodiment of the telescopic wear-type bone conduction earphone of the utility model Figure；

Figure 18: the Headphone device of the 4th kind of preferred embodiment of the telescopic wear-type bone conduction earphone of the utility model uses Left view；

Figure 19: the Headphone device of the 5th kind of preferred embodiment of the telescopic wear-type bone conduction earphone of the utility model uses Right view；

Figure 20: the microphone apparatus of the 6th kind of preferred embodiment of the telescopic wear-type bone conduction earphone of the utility model makes Use schematic diagram；

In figure:

Conventional earphone structure

A1 Headphone structure, A2 audio, A3 auricle, A4 external auditory canal, A5 auditory nerve；

Traditional bone conductors Headphone structure

B1 vibration device, B2 vibration wave, B3 auditory nerve, B4 ear canal；

The bone-conduction device of the utility model and telescopic wear-type bone conduction earphone

1 bone-conduction device, 11 flexible layers, 12 acoustic frequency response layers, 13 shells, 131 vacuum sound insulation layers, 14 vibration units, 15 Flexible circuit, 151 connectors, 152 microphone detectors, 153 microphone drive amplification circuits, 154 power supply unit circuits, 155 digital power amplification driving circuits, 16 high damping vibration attenuation layers, 17 nanometers of sound absorbing layers, 2 telescopic wear-type osteoacusis ears Machine, 21 first ear-hangs, 211 control zones, 2111 increase volume keys, 2112 lower the volume key, 2113USB transmission hole, 2114 bluetooths Device, 2115 ports, 212 convex clip buttons, 213 screw locks, 22 second ear-hangs, 221 recessed buckles, 222 screw holes, 23 supporting elements, 24 are stretched Structure, 241 slide bars, 242 sliding slots, 243 stopper sections, 244 first teeth portion, 245 second teeth portion, 3 alien devices.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

Firstly, being a kind of the vertical of the telescopic stretching structure of wear-type bone conduction earphone of the utility model as illustrated in figures 4-5 The structure sectional view of body schematic diagram and stretching structure, wherein the telescopic wear-type bone conduction earphone of the utility model is extremely It less include an at least bone-conduction device 1, the first ear-hang 21, at least one second ear-hang 22, and 23 ﹔ of an at least supporting element is wherein

First ear-hang 21 is in the shape of semicircular；

Second ear-hang 22 is correspondingly arranged in the one end of first ear-hang 21, and the bone-conduction device 1 is correspondingly arranged In the inner end of second ear-hang 22；

The supporting element 23, links first ear-hang 21 and second ear-hang 22 respectively, and the supporting element 24 Stretching structure 24 is equipped between first ear-hang 21.Wherein the stretching structure 24 can be slide bar 241 and sliding slot 242, institute It states slide bar 241 and wears the sliding slot 242, and 241 one end of the slide bar is fixedly arranged on 21 outboard end of the first ear-hang, the slide bar 241 another ends link the supporting element 23, and the sliding slot 242 is equipped with stopper section 243, and the slide bar 241 can be limited in the sliding slot 242 Position sliding, and be suitable for different users because of different head dummy sizes or wear position, effectively appropriateness adjustment bone-conduction device 1 arrives face Bone appropriate location, and then the slide bar 241 can fix position by stopper section 243, more be set by the bone-conduction device 1 correspondence It is placed in the inner end of second ear-hang 22 and the elasticity of the first ear-hang 21 itself and can have the active force of internal pressure, make bone Conduction device 1 can more press the face bone for being covered in user face being tightly fastened.

It as shown in fig. 6-7, is the solid of the telescopic wear-type bone conduction earphone another kind stretching structure of the utility model The structure sectional view of schematic diagram and stretching structure, wherein the stretching structure 24 can wear the second teeth portion for the first teeth portion 244 245, it is continuous that there is first teeth portion 244 continuous sawtooth and corresponding first teeth portion 244 of second teeth portion 245 to have Sawtooth, and first teeth portion 244 is set in described first ear-hang, 21 one end, and second teeth portion 245 links the support Part 23, first teeth portion 244 can be limited in second teeth portion 245 and be moved, and be suitable for different users because of different head dummys Size wears position, and effectively appropriateness adjustment bone-conduction device 1 is in face bone appropriate location, and then first teeth portion 244 and institute Position can be fixed by zigzag between the second teeth portion 245 by stating, and the bone-conduction device 1 is correspondingly arranged in second ear-hang 22 The elasticity of inner end and the first ear-hang 21 itself and the active force that can have internal pressure make bone-conduction device 1 more and can compress and is close solid The fixed face bone for being covered in user face.

In addition, being a kind of schematic perspective view of preferred embodiment of the utility model bone-conduction structure, whole as illustrated in figs. 8-12 Body structure sectional view, build stack cross-sectional view, structural decomposition diagram and flexible circuit structural schematic diagram, wherein this is practical Novel bone-conduction device 1 can be used as microphone or loudspeaker uses, and the bone-conduction device 1, which includes at least, to be had:

Flexible layer 11；Preferably, the flexible layer 11 is the flexible biological for the skin that one kind can be attached effectively according to user Medical material, bio-medical material can be medical fibre, such as polyester, polyamide, polyolefin, polyacrylonitrile, polytetrafluoroethylene (PTFE), gather Propylene, acid fiber by polylactic etc. are any to be formed, and allows the bone-conduction device 1 of described user's extended wear the utility model Without not feeling well or generation the problems such as skin is abnormal；

Acoustic frequency response layer 12 is stacked on the flexible layer 11；In addition, the acoustic frequency response layer 12 is by porous material or modeling It is formed prepared by one such materials such as material material；One kind as the utility model preferably, with prepared by porous material At acoustic frequency response layer 12 be stacked on the flexible layer 11, the acoustic frequency response layer 12 is mainly the sound to increase audio It answers, acoustic frequency response layer 12 can form porous by noncrystalline carbon (DLC/CB) and high molecular polymer (PEN/PET) combination, make The sensitivity of acoustic frequency response (8Hz~52,000Hz) and high frequency section is unrolled between hole and be substantially improved to audio, high frequency and secondary The music detail of high frequency section is sufficiently discharged；It as shown in figure 13, is second of the utility model bone-conduction device preferred side The overall structure cross-sectional view of formula can also effectively increase audio wherein the acoustic frequency response layer 12 is formed as prepared by plastic material Response；

Shell 13 is set on the acoustic frequency response layer 12, and the shell 13 is in closed hollow ㄇ shape, internal It is formed with vacuum sound insulation layer 131, and is enclosed between the shell 13 and the acoustic frequency response layer 12 equipped with accommodating space；In addition, institute Shell 13 is stated to form as prepared by one such material such as titanium-lead alloy or stainless steel；Preferably, with titanium-lead alloy material institute It is prepared and is set on the acoustic frequency response layer 12 in the shell 13 of closed hollow ㄇ shape, the shell 13 is simultaneously It encloses with the acoustic frequency response layer 12 equipped with the accommodating space, and is formed with the vacuum sound insulation layer 131 inside the shell 13, Wherein audio can be isolated in the vacuum sound insulation layer 131, effectively audio is made not leak sound；

Vibration unit 14, setting is in the accommodating space and on the acoustic frequency response layer 12, wherein the vibration Unit 14 is to generate audio；Preferably, vibration unit 14 is vibrating membrane to one kind as the utility model, and vibrating membrane is a metal Thin slice, or adhere to a tile in sheet metal, tone currents is by pushing vibrating membrane sounding；The vibration unit 14 is set to In the accommodating space and it is located on the acoustic frequency response layer 12, wherein the vibration unit 14 can produce audio；

Flexible circuit 15, one end is electrically connected the vibration unit 14, and the other end extends to the shell 13 Outside and be electrically connected connector 151；In addition, the flexible circuit 15 includes microphone detector 152, is electrically connected institute It states the microphone drive amplification circuit 153 of microphone detector 152, be electrically connected the microphone drive amplification circuit 153 Power supply unit circuit 154, and it is electrically connected the digital power amplification driving circuit of the microphone drive amplification circuit 153 155, wherein the microphone detector 152 receives from extraneous sound and is transferred to the microphone drive amplification circuit 153, received sound is then switched to electroacoustic signal and carries out preposition amplification by the microphone drive amplification circuit 153, then by institute It states digital power amplification driving circuit 155 and the amplification of electroacoustic signal is generated into sound wave audio to drive the vibration unit 14, and Electric power needed for the power supply unit circuit 154 then provides the flexible circuit 15；

High damping vibration attenuation layer 16 is arranged in the accommodating space, and the high damping vibration attenuation layer 16 coats the vibration Unit 14；Preferably, high damping vibration attenuation layer 16 can be damping diaphragm to one kind as the utility model, and damping diaphragm includes buffer layer It is compounded to form with film layer, the raw material of buffer layer can be used mica powder, silicon rubber, epoxy resin composition and be made, the height Damping vibration attenuation layer 16 is arranged in the accommodating space and coats the vibration unit 14, is generated with absorbing the vibration unit 14 Vibration frequency；And

Nanometer sound absorbing layer 17, setting in the accommodating space, and be located in the high damping vibration attenuation layer 16 with it is described outer Between shell 13；Preferably, nanometer sound absorbing layer 17 is nano non-woven fabric layer to one kind as the utility model, has several be linked to each other Hole, when sound wave is passed in hole, it is existing that the sound-absorbing material object plane in the air molecule speed of sound wave and hole generates boundary layer As, therefore sound sound-absorbing material surface in hole causes the sound loss of energy, and gradually uses up energy in this process, reaches More preferably sound absorption, the nanometer sound absorbing layer 17 are arranged in the accommodating space and are located in the high damping vibration attenuation layer 16 Between the shell 13, when audio bass is high, when absorbing vibration frequency or big vibration force by the nanometer sound absorbing layer 17, First by 17 sound-absorbing of nanometer sound absorbing layer, then by 131 sound insulation of vacuum sound insulation layer, audio is set to form unidirectional biography to actually reach The advantages that sending without leaking sound.

In addition, as illustrated in figures 14-16, respectively the telescopic wear-type bone conduction earphone of the utility model is a kind of preferred Schematic perspective view, control zone setting schematic diagram and connector connection schematic diagram, wherein mesh according to the present utility model , the utility model separately proposes a kind of telescopic wear-type bone conduction earphone 2, including at least having:

First ear-hang 21, in the shape of semicircular, wherein first ear-hang 21 is provided with control zone 211；In addition, described Control zone 211 is at least provided with increase volume key 2111, the key 2112 that lowers the volume, USB transmission hole 2113 and blue-tooth device 2114；Furthermore the control zone 211 can be further provided with port 2115, for the connector 151 electric connection；As Preferably, first ear-hang 21 is presented one kind of the utility model with the shape of semicircular, and first ear-hang 21 is provided with The control zone 211, wherein the control zone 211 includes the increase volume key 2111, the key 2112 that lowers the volume, institute USB transmission hole 2113 and the blue-tooth device 2114 are stated, the increase volume key 2111 is mentioned with the key 2112 that lowers the volume Volume sound is adjusted for the user to use, and the USB transmission hole 2113 provides the audio input of alien device 3, it is described Blue-tooth device 2114 receives the external information transmitted with bluetooth signal；Furthermore the control zone 211 is provided with the port 2115, for the connector 151 electric connection, to transmit relevant message；

At least one second ear-hang 22 is correspondingly arranged in the end of first ear-hang 21；In addition, second ear-hang 22 is logical It crosses and engages or screw togather the one end that one such mode is correspondingly arranged in first ear-hang 21；Furthermore first ear-hang 21 are further provided with convex clip button 212, and second ear-hang 22 is further provided with recessed buckle 221, so that first ear-hang 21 is logical The recessed buckle 221 that the convex clip button 212 is sticked in second ear-hang 22 is crossed, allows first ear-hang 21 that can be sticked in described Two ear-hangs 22；In addition, first ear-hang 21 can also be further provided with screw lock 213, second ear-hang 22 is further provided with Screw hole 222 allows described so that first ear-hang 21 is locked in the screw hole 222 of second ear-hang 22 by the screw lock 213 First ear-hang 21 can be screwed together in second ear-hang 22；One kind as the utility model is preferred, two second ear-hangs 22 It is respectively arranged at the end of first ear-hang 21, and first ear-hang 21 is provided with the convex clip button 212, and described second Ear-hang 22 is provided with the recessed buckle 221, and first ear-hang 21 can be sticked in second ear-hang by the convex clip button 212 In 22 recessed buckle 221, to allow first ear-hang 21 that can be sticked in second ear-hang 22；As shown in figure 17, practical for this The schematic perspective view of the third preferred embodiment of the wear-type bone conduction earphone of Novel stretchable, wherein first ear-hang 21 It is provided with the screw lock 213, and second ear-hang 22 is provided with the screw hole 222, first ear-hang 21 passes through the spiral shell It locks 213 and is locked in the screw hole 222 of second ear-hang 22, to allow first ear-hang 21 that can be screwed together in second ear-hang 22；And

At least one bone-conduction device 1 as described above, is correspondingly arranged in the inner end of second ear-hang 22；As this reality With a kind of novel preferred embodiment, the bone-conduction device 1 is correspondingly arranged in the inner end of second ear-hang 22, to transmit sound The audio that frequency is listened to for user or issued to receive the user；As depicted in figures 18-20, it can be stretched for the utility model The Headphone device of the 4th kind of preferred embodiment of wear-type bone conduction earphone of contracting is filled using the earphone of left view, the 5th kind of preferred embodiment The microphone apparatus using left view and the 6th kind of preferred embodiment is set using schematic diagram, wherein the utility model the 4th, In five or six preferred embodiments, the one end that only second ear-hang 22 is correspondingly arranged in first ear-hang 21, when this is practical Novel telescopic wear-type bone conduction earphone 2 is as loudspeaker in use, user can be by the scalable of the utility model The second ear-hang 22 of wear-type bone conduction earphone 2 wear in the position of ear, with by temporal bone directly by the vibration unit 14 acoustical vibration is transferred to the auditory nerve of user to be formed the sense of hearing (Figure 18), or the first ear-hang 21 is worn in head Position directly can also be listened the auditory nerve that the acoustical vibration of the vibration unit 14 is transferred to user to be formed by skull Feel (Figure 19)；When the telescopic wear-type bone conduction earphone 2 conduct microphone of the utility model is in use, the user can incite somebody to action Second ear-hang 22 is worn in neck close to the position of chin, effectively to receive the voice (Figure 20) of the user.

By above-mentioned implementation explanation it is found that the utility model and the prior art and product in comparison, the utility model tool It has the advantage that

The telescopic wear-type bone conduction earphone of the utility model mainly passes through the temporal bone on user head directly by sound The vibration of sound is transferred to the auditory nerve of user to form the design of the principle of the sense of hearing, and combines acoustic frequency response layer, high-damping The hardware design of the vibration sound-absorption vibration-reductions material such as layer and nanometer sound absorbing layer effectively solves traditional bone conductors device and is easy because of scattering Vibration wave and detract sound transmission the shortcomings that, actually reach make audio formed one-way transmission without leak sound the advantages that.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvement can also be made, these improvement also should be regarded as The protection scope of the utility model.

Claims (5)

1. a kind of telescopic wear-type bone conduction earphone, it is characterised in that: including at least having:

An at least bone-conduction device (1) ﹔

First ear-hang (21), in the shape of semicircular；

At least one second ear-hang (22) is set to the end of first ear-hang (21), and the bone-conduction device (1) is set to The inner end of second ear-hang (22)；And

An at least supporting element (23), links first ear-hang (21) and second ear-hang (22) respectively, and the support Stretching structure (24) are equipped between part (23) and first ear-hang (21).

2. telescopic wear-type bone conduction earphone according to claim 1, it is characterised in that: the stretching structure (24) Including slide bar (241) and sliding slot (242), the slide bar (241) wears the sliding slot (242), and the slide bar (241) one end is solid Set on the first ear-hang (21) outboard end, slide bar (241) other end links the supporting element (23).

3. telescopic wear-type bone conduction earphone according to claim 2, it is characterised in that: the sliding slot (242) sets There are stopper section (243).

4. telescopic wear-type bone conduction earphone according to claim 1, it is characterised in that: the stretching structure (24) Including the first teeth portion (244) and the second teeth portion (245), first teeth portion (244) is worn the second teeth portion (245), and described first There is teeth portion (244) continuous sawtooth and corresponding first teeth portion (244) of second teeth portion (245) to have continuous sawtooth, institute The first teeth portion (244) are stated in described first ear-hang (21) one end, second teeth portion (245) links the supporting element (23)。

5. telescopic wear-type bone conduction earphone according to claim 1-4, it is characterised in that: the bone passes Device (1) is led, including at least having:

Flexible layer (11)；

Acoustic frequency response layer (12) is stacked on the flexible layer (11)；

Shell (13) is set on the acoustic frequency response layer (12), and the shell (13) is in closed hollow ㄇ shape, interior Portion is formed with vacuum sound insulation layer (131), and is enclosed between the shell (13) and the acoustic frequency response layer (12) equipped with accommodating space；

Vibration unit (14), setting is in the accommodating space and on the acoustic frequency response layer (12), wherein the vibration Unit (14) is to generate audio；

Flexible circuit (15), one end is electrically connected the vibration unit (14), and the other end extends to the shell (13) outside is simultaneously electrically connected connector (151)；

High damping vibration attenuation layer (16) is arranged in the accommodating space, and the high damping vibration attenuation layer (16) coats the vibration Unit (14)；And

Nanometer sound absorbing layer (17), setting in the accommodating space, and are located in the high damping vibration attenuation layer (16) and described outer Between shell (13).