CN211457344U - Bone conduction earphone - Google Patents

Abstract

The utility model provides a bone conduction earphone, which comprises an outer shell, the frequency divider, circuit board and bone conduction unit, the shell has and holds the chamber, the frequency divider, circuit board and bone conduction unit all set up and are holding the intracavity, the frequency divider is to the first audio signal of bone conduction unit output, the circuit board is connected with the frequency divider electricity, wherein, bone conduction unit borders on with the shell, bone conduction earphone is still including setting up the sound production module that holds the intracavity, static unit and booster, the frequency divider is to sound production module output second audio signal, the frequency divider is to static unit output third audio signal, the booster respectively with static unit, the circuit board electricity is connected. Through set up bone conduction unit, sound production module and static unit in bone conduction earphone for bone conduction earphone all keeps good output at low, well, high, super high frequency channel, increases substantially bone conduction earphone's tone quality, reinforcing user's experience sense.

Description

Bone conduction earphone

Technical Field

The utility model belongs to the technical field of the earphone technique and specifically relates to a bone conduction earphone is related to.

Background

The sound output by the sound generating unit of the conventional earphone is transmitted through air, for example, after a user wears the earphone, the sound is output through a moving coil loudspeaker and/or a moving iron loudspeaker in the earphone, and then the output sound is transmitted to the eardrum of the user by taking the air as a transmission medium, so that the eardrum of the user vibrates to obtain the sound. However, since the sound waves are attenuated when the sound waves are propagated through the air, and since the ear canals of the users are communicated with the outside, the propagation of the sound waves is influenced by external sounds (such as the sounds of teeth biting or coughing of people), so that the inner ears of the users can receive various sound waves at the same time, and the users are finally influenced to enjoy the sounds output by the earphones.

To this, the bone conduction earphone that appears in recent years has better the solution above-mentioned problem, and bone conduction earphone has a casing usually, and the casing is inside to set up bone conduction loudspeaker (being bone conduction sensor) and audio output circuit, and audio output circuit is through exporting the signal of telecommunication to bone conduction sensor for bone conduction sensor carries out the vibration that suits according to the signal of telecommunication of receiving, and drives the casing of earphone and shake. Because the casing of earphone is direct and the ear canal contact, casing and the peripheral bone contact of ear canal promptly for the casing can drive the bone vibrations, and the vibrations through the bone conduct the sound wave to the inner ear, consequently, the tone quality of bone conduction earphone is superior to the tone quality of traditional earphone, satisfies the user to the demand of high quality earphone. In addition, for the people with eardrum damage, the bone conduction earphone can better make up the defects of the traditional earphone.

Bone conduction transducer has good response performance to intermediate frequency signal, when audio output circuit exports intermediate frequency signal to bone conduction transducer promptly, drive bone conduction transducer that can be fine carries out the best vibration of effect, thereby fine conduction intermediate frequency signal, however, bone conduction transducer is relatively poor to the response performance of low frequency signal and high frequency signal, make after low frequency signal and high frequency signal export bone conduction transducer, bone conduction transducer's vibration effect is not obvious, lead to bone conduction headset to the conductivity of low frequency signal and high frequency signal not enough, the development of high quality earphone has been restricted.

Disclosure of Invention

In order to solve the above problems, the main objective of the present invention is to provide a bone conduction earphone with high tone quality and better audio transmission performance.

In order to realize the utility model discloses a main objective, the utility model provides a bone conduction earphone, which comprises an outer shell, the frequency divider, circuit board and bone conduction unit, the shell has and holds the chamber, the frequency divider, circuit board and bone conduction unit all set up and are holding the intracavity, the frequency divider is to the first audio signal of bone conduction unit output, the circuit board is connected with the frequency divider electricity, wherein, bone conduction unit and shell adjoin, bone conduction earphone is still including setting up the sound production module that holds the intracavity, static unit and booster, the frequency divider is to the second audio signal of sound production module output, the frequency divider is to static unit output third audio signal, the booster respectively with static unit, the circuit board electricity is connected.

From top to bottom, above-mentioned structural design makes the osteoacusis earphone keep high-quality intermediate frequency output through the osteoacusis unit, reduce the influence of external noise to the sound of osteoacusis earphone output simultaneously, and simultaneously, strengthen and compensate the osteoacusis unit in the not enough of well low frequency channel through the sound production module, strengthen and compensate the osteoacusis unit in the not enough of well high frequency channel through static unit, make the osteoacusis earphone can hang down, well, high frequency channel all keeps good output, improve the tone quality of osteoacusis earphone, the experience of reinforcing user feels.

Preferably, the housing includes a housing body having a receiving cavity, and a cover plate covering an opening of the receiving cavity and closing the receiving cavity, and the bone conduction unit is fixedly mounted on the cover plate.

From the above, by mounting the bone conduction unit on the cover plate, the vibration generated by the bone conduction unit can be conducted to the inner ear through the entire housing and the skin in contact with the housing, so as to produce hearing, reducing the loss of vibration waves.

The shell is a customized shell which is provided with an ear canal part and an auricle part, the front end of the ear canal part is provided with a sound outlet hole, and the sound outlet hole is communicated with the accommodating cavity.

Therefore, the customized shell can be more attached to the auditory meatus of a user, and the conduction effect of the vibration waves is improved; and the sound outlet hole at the front end of the ear canal part enables sound waves output by the sound production module and the electrostatic unit to be better conducted to the inner ear, and the tone quality of the bone conduction earphone is improved.

The cover plate is provided with a through hole which penetrates through the cover plate and is communicated with the containing cavity, and a first filter screen is arranged in the through hole.

It is from top to bottom visible, first filter screen can play the tuning effect, makes tone quality low frequency volume grow to reduce the bad burr of high pitch.

Another preferred scheme is that the bone conduction earphone further comprises a first sound conducting tube, the first sound conducting tube is arranged in the accommodating cavity and connected with the electrostatic unit, and the electrostatic unit is an ultrahigh frequency electrostatic unit.

Therefore, the arrangement of the first sound guide tube can enable the sound waves output by the electrostatic unit to be better conducted to the inner ear.

Another preferred scheme is, the sound production module includes first moving iron unit and first moving coil unit, and the frequency divider is respectively to first moving iron unit and first moving coil unit output second audio signal, and osteoacusis earphone is still including setting up second leading note pipe, third leading note pipe, second filter screen and the third filter screen holding the intracavity, and the second filter screen is connected between second leading note pipe and first moving iron unit, and the third filter screen is connected between third leading note pipe and first moving coil unit.

As can be seen from the above, the sound module is set as the combination of the first moving iron unit and the first moving coil unit, so that the bone conduction earphone has the advantages of high sound density, strong resolving power and clear line feeling, and can have excellent middle and low frequency band output; the second sound guide tube and the third sound guide tube are arranged to enable sound waves output by the first moving iron unit and the first moving coil unit to be better conducted to the inner ear; the second filter screen and the third filter screen both have a tuning effect to optimize the tone quality of first moving-iron unit and first moving-coil unit output.

Another preferred scheme is that the sound production module comprises a second moving iron unit, the frequency divider outputs a second audio signal to the second moving iron unit, the bone conduction earphone further comprises a fourth sound guide pipe and a fourth filter screen which are arranged in the accommodating cavity, and the fourth filter screen is connected between the fourth sound guide pipe and the second moving iron unit; or the sound production module includes the second and moves the circle unit, and the frequency divider is to the second and moves the circle unit output second audio signal, and bone conduction earphone still including setting up fifth leading note pipe and the fifth filter screen that holds the intracavity, and fifth filter screen is connected between fifth leading note pipe and second and moves the circle unit.

Therefore, the second moving iron unit is adopted as the sounding module to realize the combination and frequency division of the plurality of second moving iron units so that the bone conduction earphone has wider frequency response range and finer sound; the fourth sound guide tube enables sound waves output by the second moving iron unit to be better conducted to the inner ear; the fourth filter screen plays a role in tuning to optimize the tone quality output by the second moving iron unit. The second moving coil is used as a sounding module, so that the sound of the bone conduction earphone is more natural and loose, and the bone conduction earphone has a natural frequency response range; the fifth sound guide tube is arranged, so that sound waves output by the second moving coil unit can be better transmitted to the inner ear; the fifth filter screen plays a role in tuning to optimize the tone quality output by the second moving coil unit.

The bone conduction unit further comprises an earphone wire interface, the earphone wire interface is mounted on the shell, and the earphone wire interface is electrically connected with the circuit board.

It is from top to bottom, through setting up the earphone cord interface for the earphone cord of bone conduction earphone has the convertibility, can enough satisfy different users 'use, repacking demand, can improve bone conduction earphone's life again.

In a further scheme, the number of the static units and the number of the sounding modules are two.

From top to bottom, the quantity of static unit and sound production module can be adjusted according to the demand of difference to make bone conduction earphone can satisfy different users' demand.

Further, the housing is made of resin, carbon fiber, aluminum alloy, wood, titanium metal or stainless steel.

Therefore, the manufacturing material of the shell is selected according to the requirements of the user, and the personalized customization degree of the bone conduction earphone is improved.

Drawings

Fig. 1 is a structural diagram of a first embodiment of the bone conduction headset of the present invention.

Fig. 2 is an exploded view of a first embodiment of a bone conduction headset according to the present invention, with some components omitted.

Fig. 3 is a structural diagram of a first view angle of a housing of a first embodiment of the bone conduction headset according to the present invention.

Fig. 4 is a structural diagram of a second view angle of the housing of the first embodiment of the bone conduction headset according to the present invention.

Fig. 5 is a structural diagram of a cover plate of the first embodiment of the bone conduction headset of the present invention.

Fig. 6 is a frequency characteristic diagram of the bone conduction unit of the bone conduction headset according to the present invention on HATS (head and torso simulator) in a fitting housing structure.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Bone conduction headset first embodiment:

referring to fig. 1 and 2, the bone conduction headset 100 includes a housing 1, a bone conduction unit 2, a sounding block 3, an electrostatic unit 41, a booster 42, a headset wire interface 5, a frequency divider (not shown), and a circuit board (not shown). Referring to fig. 3 to 4, the housing 1 includes a case 11 and a cover 12, the case 11 has a housing cavity 110, and the acoustic module 3, the electrostatic unit 41, the booster 42, the earphone line interface 5, the frequency divider, and the circuit board are disposed in the housing cavity 110. The cover plate 12 covers the opening of the accommodating cavity 110 and is fixedly connected with the shell 11, so that the cover plate 12 seals the accommodating cavity 110 to protect components in the accommodating cavity 110. The shell 11 and the cover plate 12 can be fixedly connected through bolts, so that the shell 11 and the cover plate 12 can be quickly disassembled and assembled, and the components can be conveniently maintained and the bone conduction earphone 100 can be conveniently modified; certainly, the housing 11 and the cover plate 12 may be connected by other connection methods such as a snap connection, for example, a first fastening member is disposed on the housing 11, a second fastening member is disposed on the cover plate 12, and when the housing 11 and the cover plate 12 are assembled, the first fastening member and the second fastening member are fastened to each other, so as to achieve a fixed connection between the housing 11 and the cover plate 12. Wherein, one of the first fastener and the second fastener is a claw, and the other is a slot.

Referring to fig. 5, a mounting groove 121 is provided on a side of the cover plate 12 facing the receiving cavity 110, and the bone conduction unit 2 is fitted into the mounting groove 121 to fix the bone conduction unit 2 to the cover plate 12, so that vibration generated by the bone conduction unit 2 can be conducted to the inner ear through the entire housing 1 and the skin in contact with the housing 1 to produce hearing sensation for the user; the bone conduction unit 2 is fixed on the cover plate 12 in an embedded mode, so that the bone conduction unit 2 is in interference fit with the cover plate 12, and the loss of vibration waves can be effectively reduced. Of course, as another alternative, the bone conduction unit 2 may be fixed on the cover plate 12 by using an adhesive, but the fixation of the bone conduction unit 2 and the cover plate 12 by using the adhesive may absorb part of the vibration generated by the bone conduction unit 2 to some extent, so as to attenuate the vibration wave transmitted by the bone conduction unit 2.

The bone conduction unit 2 is mainly responsible for the output of intermediate frequency, and the bone conduction unit 2 includes metal trembler and multilayer piezoceramics, and multilayer piezoceramics adheres to on the metal trembler to when the signal of telecommunication passes through the bone conduction unit 2, piezoceramics can be according to the change drive metal trembler of the signal of telecommunication and carry out the bending, thereby makes the bone conduction unit 2 produce the micro vibration.

In addition, a through hole 122 is formed in the cover plate 12, the through hole 122 penetrates through the cover plate 12, and the through hole 122 is communicated with the accommodating cavity 110. Be provided with first filter screen 64 in the through-hole 122, first filter screen 64 can play the tuning effect to the tone quality low frequency volume grow of time bone conduction earphone 100, and reduce the bad burr of high pitch.

The sounding module 3 is mainly responsible for the output of the middle and low frequency bands to enhance and compensate the deficiency of the bone conduction unit 2 in the middle and low frequency bands. The sound module 3 includes the first moving-iron unit 31 and the first moving-coil unit 32, and the combination of the first moving-iron unit 31 and the first moving-coil unit 32 is used as the sound module 3, so that the bone conduction earphone 100 has the advantages of high sound density, strong resolving power, clear line feeling and the like, and the bone conduction earphone 100 can have excellent middle-low frequency output.

The housing 11 has an ear canal portion 111 and an auricle portion 112, when the bone conduction earphone 100 is worn by a user, the ear canal portion 111 extends into the ear canal of the user and fits into the ear canal, and the auricle portion 112 is located in the auricle of the user and fits into the auricle, so that the vibration waves conducted by the bone conduction unit 2 can be better conducted to the inner ear of the user through the skin, bone, etc. of the ear of the user. Wherein, the front end of the ear canal part 111 has a sound outlet hole group, in this embodiment, the sound outlet hole group includes four sound outlet holes 1111, and each sound outlet hole 1111 all communicates with the accommodating cavity 110. The earphone sleeve 7 is sleeved at the front end of the ear canal part 111, and the earphone sleeve 7 can be attached to the ear canal of a user when the user wears the bone conduction earphone 100, so that a better sealing effect is formed, noise of the external environment is prevented from being transmitted into the ear canal of the user, and the tone quality of the bone conduction earphone 100 is ensured.

In this embodiment, the bone conduction earphone 100 further includes a first sound guiding tube 61, a second sound guiding tube 62, a third sound guiding tube 63, a second filter 65, a third filter 66 and a moving coil front cavity 321 disposed in the accommodating cavity 110. The second filter screen 65 is connected between the first moving iron unit 31 and the second sound guide pipe 62, the second sound guide pipe 62 is communicated with a sound outlet hole 1111 of the sound outlet hole group, the second sound guide pipe 62 can enable sound waves output by the first moving iron unit 31 to be better conducted to inner ears of a user, and the second filter screen 65 is used for optimizing the sound quality output by the first moving iron unit 31 to play a role in tuning. The first moving coil unit 32 is installed in the moving coil front cavity 321, the third filter 66 is connected between the third sound guiding pipe 63 and the moving coil front cavity 321, and the third sound guiding pipe 63 is communicated with one sound outlet 1111 of the sound outlet hole group. Similarly, the third sound guide tube 63 and the moving coil front cavity 321 can make the sound wave output by the first moving coil unit 32 better conducted to the inner ear of the user, and the third filter screen 66 is used for optimizing the sound quality output by the first moving coil unit 32 to play a role in tuning.

The booster 42 is electrically connected to the circuit board and the electrostatic unit 41, respectively, and the booster 42 is configured to output a high voltage to the electrostatic unit 41 so that the electrostatic unit 41 generates a sufficient potential difference to ensure a normal operation of the electrostatic unit 41. The electrostatic unit 41 is mainly responsible for medium-high frequency band and ultrahigh frequency band output so as to enhance and compensate the deficiency of the bone conduction unit 2 in the medium-high frequency band and the ultrahigh frequency band. The first sound guiding tube 61 is connected to the electrostatic unit 41, preferably, a filter screen is disposed between the first sound guiding tube 61 and the electrostatic unit 41, the first sound guiding tube 61 is communicated with one sound outlet 1111 of the sound outlet set, and similarly, the first sound guiding tube 61 is used for better conducting the sound wave output by the electrostatic unit 41 to the inner ear of the user, and the filter screen is used for optimizing the sound quality output by the electrostatic unit 41 and playing a role in tuning the electrostatic unit 41. The static unit 41 preferably adopts an ultrahigh frequency static unit, so as to better ensure the output quality of the bone conduction earphone 100 in an ultrahigh frequency band.

As shown in fig. 2 and 3, the auricle portion 112 of the housing 11 is provided with a mounting hole 1121, the mounting hole 1121 is used for accommodating and fixing the earphone line interface 5, and the earphone line interface 5 is electrically connected to the circuit board, so that audio output by an external device can be input to the circuit board of the bone conduction earphone 100 through the earphone line and the earphone line interface 5. In addition, the setting of earphone cord interface 5 can also make the earphone cord of being connected with bone conduction earphone 100 have the convertibility to when the damage appears in the earphone cord, can guarantee bone conduction earphone 100's normal use through changing the earphone cord, improve bone conduction earphone 100's life, the use of different users, the repacking demand also can be satisfied in the setting of earphone cord interface 5 simultaneously, for example, the user can adjust bone conduction earphone 100's whole tone quality through changing the earphone cord of different materials.

The frequency divider is electrically connected with the circuit board, the bone conduction unit 2, the sound production module 3 and the electrostatic unit 41 respectively. The frequency dividers are used for outputting a first audio signal to the bone conduction unit 2, a second audio signal to the first moving iron unit 31 and the first moving coil unit 32, and a third audio signal to the electrostatic unit 41, respectively. Preferably, since the bone conduction unit 2 is mainly responsible for outputting the intermediate frequency band, the first audio signal may be set to an intermediate frequency signal; the sounding module 3 is mainly responsible for outputting the middle-low frequency band, so that the second audio signal can be set as a low-frequency signal; since the electrostatic unit 41 is mainly responsible for outputting the high frequency band, the third audio signal may be set to a high frequency signal. Of course, the first audio signal may also be a low-frequency signal, a high-frequency signal, or a full-frequency signal, the second audio signal may also be an intermediate-frequency signal, a high-frequency signal, or a full-frequency signal, and the third audio signal may also be a low-frequency signal, an intermediate-frequency signal, an ultra-high-frequency signal, or a full-frequency signal; it can be seen that the bone conduction unit 2, the sound module 3, or the electrostatic unit 41 can receive one or more signals of different frequency bands.

In this embodiment, the number of the static units 41, the number of the first moving iron units 31, and the number of the first moving coil units 32 are two, and the number of the static units 41 and the number of the sound emitting modules 3 can be adjusted according to different requirements of a user, for example, the number of the static units 41, the number of the first moving iron units 31, and the number of the first moving coil units 32 are all set to one or more than three.

In addition, the material for manufacturing the housing 1 may be resin, carbon fiber, aluminum alloy, wood, titanium metal, or stainless steel, and the like, and thus the material for manufacturing the housing 1 is selected according to the user's requirements, so as to meet the requirements of different users and improve the personalized customization degree of the bone conduction headset 100.

Bone conduction headset second embodiment:

the present embodiment differs from the first embodiment of the bone conduction headset in that:

the sounding module only comprises a second moving iron unit, and the arrangement of a second sound guide pipe, a third sound guide pipe, a second filter screen, a third filter screen and a moving coil front cavity is cancelled. The frequency divider outputs a second audio signal to the second moving-iron unit, and in addition, in this embodiment, the bone conduction earphone further includes a fourth sound guiding tube and a fourth filter screen, the fourth filter screen is connected between the fourth sound guiding tube and the second moving-iron unit, and the fourth sound guiding tube is communicated with one sound outlet hole in the sound outlet hole group. Because the volume of moving the indisputable unit is less, consequently, adopt the second to move indisputable unit and can realize making bone conduction earphone have more wide frequency response scope and more exquisite sound to a plurality of second and move indisputable unit and make the overall arrangement of components and parts in the shell obtain better optimization as the sound production module.

Bone conduction headset third embodiment:

the present embodiment differs from the first embodiment of the bone conduction headset in that:

the sounding module only comprises a second moving coil unit, and the arrangement of a second sound guide pipe, a third sound guide pipe, a second filter screen and a third filter screen is cancelled. In addition, in this embodiment, the bone conduction earphone further includes a fifth sound guide tube and a fifth filter screen, the fifth filter screen is connected between the fifth sound guide tube and the second moving coil unit, and the fifth sound guide tube is communicated with one sound outlet hole in the sound outlet hole group. Use the second movable coil as the vocal module, can make bone conduction earphone's sound more natural loose to make bone conduction earphone possess the natural frequency response scope.

Bone conduction headset fourth embodiment:

the difference between this embodiment and each of the above embodiments lies in that the housing in this embodiment is a customized housing, that is, the ear canal part contour and the auricle part contour of the housing can be customized according to the specific contour shapes of the ear canal and the auricle of the user, so that the ear canal part of the housing better fits the ear canal of the user, the auricle part better fits the auricle of the user, the conduction effect of the vibration wave output by the bone conduction unit is improved, and the tone quality of the bone conduction earphone is better improved.

In summary, in combination with fig. 6 (where the unit of the horizontal axis is hz, and the unit of the vertical axis is cattle), the present invention, through the arrangement of the bone conduction earphone, enables the bone conduction earphone to maintain a good quality of the middle frequency band output through the bone conduction unit, and reduces the influence of external noise on the sound output by the bone conduction earphone; the defects of the bone conduction unit in the middle and low frequency bands are enhanced and compensated through the sounding module, so that the bone conduction earphone can perform high-quality and stable output in the middle and low frequency bands; the defects of the bone conduction unit in the middle and high frequency bands are enhanced and compensated through the electrostatic unit, so that the bone conduction earphone can perform high-quality and stable output in the middle and high frequency bands and the ultrahigh frequency band, the bone conduction earphone can keep good output in the low, middle, high and ultrahigh frequency bands, the tone quality of the bone conduction earphone is greatly improved, and the experience feeling of a user is enhanced.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims (10)

1. A bone conduction earphone comprises a shell, a frequency divider, a circuit board and a bone conduction unit, wherein the shell is provided with a containing cavity, the frequency divider, the circuit board and the bone conduction unit are all arranged in the containing cavity, the frequency divider outputs a first audio signal to the bone conduction unit, the circuit board is electrically connected with the frequency divider, and the bone conduction earphone is characterized in that:

the bone conduction unit is adjacent to the housing;

the bone conduction earphone further comprises a sounding module, a static unit and a booster, the sounding module, the static unit and the booster are arranged in the accommodating cavity, the frequency divider outputs a second audio signal to the sounding module, the frequency divider outputs a third audio signal to the static unit, and the booster is electrically connected with the static unit and the circuit board respectively.

2. The bone conduction headset of claim 1, wherein:

the housing includes:

a housing having the accommodating chamber;

the cover plate covers the opening of the accommodating cavity and seals the accommodating cavity, and the bone conduction unit is fixedly mounted on the cover plate.

3. The bone conduction headset of claim 2, wherein:

the shell is a customized shell, the customized shell is provided with an ear canal part and an auricle part, the front end of the ear canal part is provided with a sound outlet hole, and the sound outlet hole is communicated with the accommodating cavity.

4. The bone conduction headset of claim 2 or 3, wherein:

the apron is provided with the through-hole, the through-hole run through the apron and with hold the chamber intercommunication, be provided with first filter screen in the through-hole.

5. The bone conduction headset of claim 1, wherein:

the bone conduction earphone further comprises a first sound guide tube, wherein the first sound guide tube is arranged in the accommodating cavity and is connected with the electrostatic unit;

the static unit is an ultrahigh frequency static unit.

6. The bone conduction headset of claim 1, wherein:

the sound production module comprises a first moving iron unit and a first moving coil unit, and the frequency divider outputs the second audio signal to the first moving iron unit and the first moving coil unit respectively;

bone conduction earphone is still including setting up second leading note pipe, third leading note pipe, second filter screen and the third filter screen that holds the intracavity, the second filter screen is connected the second leading note pipe with between the first moving iron unit, the third filter screen is connected the third leading note pipe with between the first moving coil unit.

7. The bone conduction headset of claim 1, wherein:

the sound production module comprises a second moving iron unit, the frequency divider outputs the second audio signal to the second moving iron unit, the bone conduction earphone further comprises a fourth sound guide pipe and a fourth filter screen which are arranged in the accommodating cavity, and the fourth filter screen is connected between the fourth sound guide pipe and the second moving iron unit; or

The sound production module includes that the second moves the circle unit, the frequency divider to the second moves the circle unit output second audio signal, bone conduction headset is still including setting up hold fifth leading note pipe and the fifth filter screen of intracavity, the fifth filter screen is connected fifth leading note pipe with between the second moves the circle unit.

8. The bone conduction headset of any one of claims 1-3, 5-7, wherein:

the bone conduction unit further comprises an earphone wire interface, the earphone wire interface is installed on the shell, and the earphone wire interface is electrically connected with the circuit board.

9. The bone conduction headset of any one of claims 1-3, 5-7, wherein:

the number of the static units and the number of the sounding modules are two.

10. The bone conduction headset of any one of claims 1-3, 5-7, wherein:

the housing is made of resin, carbon fiber, aluminum alloy, wood, titanium metal or stainless steel.

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