CN112423182B

CN112423182B - Improved bone conduction earphone

Info

Publication number: CN112423182B
Application number: CN202011270520.6A
Authority: CN
Inventors: 林旭
Original assignee: Shuma Lvzhou Co ltd
Current assignee: Shuma Lvzhou Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2023-07-25
Anticipated expiration: 2040-11-13
Also published as: CN112423182A

Abstract

The invention discloses an improved bone conduction earphone which comprises an earphone main body and an earphone wire, wherein the earphone main body is provided with a bone conduction device and an arc-shaped ear hook, the earphone wire is respectively and electrically connected with the earphone main body and the bone conduction device, the bone conduction device is at least provided with an inner bone conduction surface and a side bone conduction surface, and the bone conduction device is provided with at least two bone conduction paths for bone conduction sound waves entering the head of a human body from different positions and/or different directions. The invention improves the frequency range of the sound which can be restored and conducted by the bone conduction earphone, solves the problem of sound leakage of the existing bone conduction earphone with a low-cost technical scheme, and simultaneously improves the depth and the sound effect of the sound of the bone conduction earphone, and the direction, the distance and the strength of the conduction and the reproduction sound source.

Description

Improved bone conduction earphone

Technical Field

The invention relates to the technical field of bone conduction headphones, in particular to an improved bone conduction headphone.

Background

The conventional bone conduction earphone must be attached to the front side of the human ear, and the bone conduction earphone transmits sound waves to the auditory ossicles of the human body through vibration of the steel sheet installed in the housing, and transmits the sound waves to the auditory centers of people through bone conduction, so that the wearer can hear the sound.

The traditional bone conduction earphone relies on the air vibration of steel sheet and steel sheet front side to produce sound wave, therefore, because the frequency range of sound wave that bone conduction earphone can conduct is relatively less, namely has the problem of common name of leaking sound, the distortion degree of the sound wave that conducts is great, especially can not restore and conduct the low frequency sound below 160Hz, of course, also has serious leaking sound phenomenon when restoring and conducting the high frequency sound at 2500 Hz-20000 Hz, especially the higher frequency sound or the lower frequency sound.

The bone conduction earphone adopts U-shaped hard back hanging type support body to wear bone conduction earphone at people's head, and the left and right sides of hanging type support body behind the stereoplasm has elastic arm body, hangs the dress on human ear through the stores pylon of shaping in the outer tip of arm body, and bone conduction device is fixed in the outer tip of arm body, makes bone conduction device paste the skin at the ear front side through the elastic pressure of arm body, and bone conduction earphone conduction sound wave's contact surface is very little, only is limited in bone conduction earphone and the skin of ear front side contact and paste tight region.

In addition, the present wearing structure of the bone conduction earphone makes the bone conduction device only cling to the skin in front of the ear, which is not the best sound wave conduction path for bone conduction, and does not transmit sound signals to the auditory center well, so that improvement is needed.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide an improved bone conduction earphone, which can improve the frequency range of sound which can be restored and conducted by the bone conduction earphone, solve the problem of sound leakage of bone conduction ears and improve the tone quality of the bone conduction earphone.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: an improved bone conduction earphone comprises an earphone main body, an earphone wire, a bone conduction device and an ear hook, wherein the bone conduction device is fixed on the ear hook, the earphone wire is respectively and electrically connected with the earphone main body and the bone conduction device, the bone conduction device is at least provided with an inner bone conduction surface and a side bone conduction surface, and the bone conduction device is provided with at least two bone conduction paths for bone conduction sound waves entering the head of a human body from different positions and/or different directions.

Further, the ear hook is provided with a hanging ear part used for being hung on the ear of a human body and a rear mounting part which is positioned at the rear side of the ear of the human body when the ear hook is worn, the bone conduction device is fixed at the rear mounting part of the ear hook, the inner surface of the bone conduction device is provided with an inner bone conduction surface which is used for being abutted against the head skin at the rear side of the ear and realizing bone conduction on the head skin, and one side surface of the bone conduction device facing the ear of the human body is provided with a side bone conduction surface which is used for being abutted against the back of the ear and realizing bone conduction on the back of the ear; the conduction direction and the conduction path of the bone conduction sound wave conducted to the skull and/or ossicular nerve tissue of the human body in the bone conduction process are different from each other.

Further, the surface of the inner bone transmission surface is a plane or a curved surface, and the surface of the side bone transmission surface is a plane or a curved surface; the frequency region of the bone conduction sound wave conducted by the inner bone conduction surface and the frequency region of the bone conduction sound wave conducted by the side bone conduction surface have local overlapping regions or are completely different.

Further, the bone conduction device comprises a shell, a bone conduction vibration component and at least one bone conduction composite medium sheet, wherein the bone conduction vibration component is fixed in an inner cavity of the shell, the bone conduction composite medium sheet is fixed on a bone conduction surface of the shell, the bone conduction vibration component is arranged at the rear side of the bone conduction composite medium sheet, and the bone conduction composite medium sheet is composited with at least one hard medium sheet and at least one elastic soft medium sheet; the bone conduction surface includes an inner bone conduction surface and/or a side bone conduction surface.

Further, the bone conduction composite medium sheet comprises an elastic soft medium sheet positioned in the middle area and a hard medium sheet integrally compounded on the outer edge of the elastic soft medium sheet; alternatively, the bone conduction composite medium sheet comprises a hard medium sheet positioned in the middle area and an elastic soft medium sheet integrally combined with the outer edge of the hard medium sheet.

Furthermore, the elastic soft dielectric film of the bone conduction composite dielectric film is elastically and tightly fixed on the shell, and only a hard dielectric film is compounded in the middle area of the bone conduction composite dielectric film or an elastic soft dielectric film and a hard dielectric film are compounded up and down in the middle area of the bone conduction composite dielectric film.

Further, a bone conduction surface shell layer is arranged or compounded on the outer surface of the bone conduction surface or the outer surface of the bone conduction composite medium sheet, the hard medium sheet is a hard thin sheet for conducting medium-high frequency sound sources or full-frequency sound sources, and the elastic soft medium sheet is an elastic thin sheet or sheet for conducting medium-low frequency sound sources or only conducting low frequency sound sources.

Further, two ear-hanging, two earphone cord and line length adjustment mechanism are provided with about, each ear-hanging the back installation department all is fixed with one bone conduction device, and the first end of two earphone cords is electric respectively in two bone conduction devices, the second end is electric respectively in the earphone main part, and line length adjustment mechanism installs in two earphone cords to realize adjusting pulling force and/or bone conduction device between two ear-hanging to human skin's pressure, at least one bone conduction vibrations subassembly is installed to bone conduction vibrations subassembly's inner chamber, and bone conduction vibrations subassembly sets up the rear side of bone conduction face or side bone conduction face.

Further, a bracket is fixed in the inner cavity of the shell of the bone conduction device, the bone conduction vibration component is arranged on the bracket, the bone conduction composite medium sheet is fixed on the rear side surface of the inner cavity of the shell to form a bone conduction surface, and a conduction space is reserved between the bone conduction composite medium sheet and the bone conduction vibration component;

the bone conduction vibration component comprises a coil support, a coil, a magnetic steel pull rod, a steel sheet, a U cup and magnetic steel, wherein the coil support is fixedly arranged on a shell or the support, the coil support is provided with a cylinder body, the coil is wound and arranged on the cylinder body, the U cup is fixed at the lower part of the magnetic steel, the U cup is provided with a wall body extending upwards and encircling the outer edge of the magnetic steel, the middle upper part of the magnetic steel is movably sleeved in an inner cavity of the cylinder body, the wall body of the U cup is positioned between the cylinder body and the outer edge of the coil, the magnetic steel pull rod is movably arranged on the coil support or the support, the lower part of the magnetic steel pull rod is fixed on the magnetic steel, the steel sheet is arranged on the upper part of the coil support or the support, the steel sheet is arranged at the rear side of the bone conduction composite medium sheet, the bone conduction composite medium sheet and the steel sheet are arranged at intervals in parallel to form a conduction space, a steel sheet through hole is formed in the middle part of the steel sheet, a club head is arranged on the upper part of the magnetic steel pull rod, the club head is movably inserted in the steel through hole, and the club head stretches into the conduction space.

Further, the wire length adjusting mechanism comprises an adjusting wire clamp, the adjusting wire clamp is provided with a threading sliding sleeve and a wire pressing block movably arranged in the threading sliding sleeve, an elastic element movably propping against the wire pressing block is arranged in the threading sliding sleeve, a wire clamping hole is formed in the threading sliding sleeve along the vertical direction of the moving direction of the wire pressing block, two earphone wires respectively and movably penetrate through the wire clamping hole, the wire pressing block elastically propping against the two earphone wires respectively, and a pressing part protruding out of the threading sliding sleeve is arranged on the wire pressing block;

the ear hook is provided with an ear hook part and a rear mounting part, the tail end part of the ear hook part is integrally formed with an ear hook fixing part matched with the external auditory canal of the human ear, the ear hook fixing part and the rear mounting part are arranged at intervals relatively, an arc-shaped rod body used for being hung on the upper part of the ear is integrally formed between the ear hook part and the rear mounting part, the rear mounting part and the bone conduction device are positioned on the rear side of the ear when the ear hook is worn, the rod body is hung against the upper part of the ear, and the ear hook fixing part is plugged into the external auditory canal of the ear.

Further, an ear hanging hole penetrating through the ear hanging fixing part is formed in the middle of the ear hanging fixing part; the ear-hanging hole is communicated with air, or is plugged with an earplug, or is plugged with a traditional earphone electrically connected with the earphone main body or the bone conduction device.

Further, the ear hook is a C-shaped elastic flexible frame body, and is provided with an opening facing downwards;

the earphone main body comprises a U-shaped neck hanging frame, the left end and the right end of the neck hanging frame are respectively provided with a functional part, a battery or a control circuit is arranged in the inner cavity of at least one functional part, the surface of at least one functional part is provided with a control key electrically connected with the control circuit, at least one functional part is provided with at least one radio microphone and/or noise reduction microphone electrically connected with the control circuit, and two earphone wires penetrate out from the middle part of the rear side of the neck hanging frame;

the upper part of the bone conduction device is fixed at the lower end part of the rear mounting part, the lower part of the bone conduction device is connected with a first end of the earphone wire, and a second end of the earphone wire penetrates into the earphone main body from the middle part of the neck hanging frame and is electrically connected with the control circuit;

an earphone wire extending from the bone conduction device to the earphone body after the bone conduction earphone is worn, and the wire length adjusting mechanism is freely hung on the rear side of the head of the human body;

the hanging lug fixing part is integrally formed at the tail end part of the rod body, the section of the hanging lug fixing part is larger than that of the rod body, and the section of the hanging lug fixing part is circular;

the elastic soft dielectric film sheet and the hard dielectric sheet are in press fit or adhesion and combined into a whole at the mutually adjacent joint, or the elastic soft dielectric film sheet and the hard dielectric sheet are in press fit or adhesion and combined into a whole at the mutually overlapped joint.

Compared with the prior art, the invention has the advantages that: the invention improves the frequency range of the sound which can be restored and conducted by the bone conduction earphone, solves the problem of sound leakage of the existing bone conduction earphone with a low-cost technical scheme, and simultaneously improves the depth, volume and sound effect of the sound of the bone conduction earphone, and the direction, distance and strength of the conducted and reproduced sound source.

Drawings

Fig. 1 is a schematic structural view of a bone conduction headset according to the present invention.

Fig. 2 is a schematic view showing a use state of the bone conduction headset of the present invention.

Fig. 3 is a schematic view showing an internal structure of the bone conduction device of the present invention.

Fig. 4 is a schematic view of the structure of the present invention after the earplug is inserted into the ear-hanging hole.

Fig. 5 is a schematic view of the structure of the present invention after a conventional earphone is inserted into an ear-hanging hole.

Marked in the figure.

1 an earphone body.

2 bone conduction device 21 housing 22 bone conduction surface shell 23 scaffold.

3 ear hook 31 ear hook fixing portion 311 ear hook hole.

4 earphone cord 40 hangs neck frame 41 adjusting clamp 42 line ball piece 43 traditional earphone 44 traditional earphone cord 45 earplug 46 control button.

5 bone conduction vibration component 51 coil bracket 52 coil 53 magnet steel pull rod 54 steel sheet 55U cup 56 magnet steel 57 conduction space.

6 bone conduction composite dielectric sheet 61 elastic soft dielectric sheet 62 hard dielectric sheet.

Detailed Description

An improved bone conduction earphone is shown in fig. 1 to 5, the bone conduction earphone comprises an earphone main body 1 and an earphone wire 4, the earphone main body 1 is provided with a bone conduction device 2 and an arc-shaped ear hook 3, the earphone wire 4 is respectively electrically connected with the earphone main body 1 and the bone conduction device 2, the bone conduction device 2 is at least provided with an inner bone conduction surface and a side bone conduction surface, at least one bone conduction vibration component 5 is arranged in an inner cavity of the bone conduction device 2, the bone conduction vibration component 5 is arranged at the rear side of the inner bone conduction surface or the side bone conduction surface, and the bone conduction device 2 is provided with at least two bone conduction paths for bone conduction sound waves entering the head of a human body from different positions and/or different directions. The bone conduction contact surface is increased, the wearing comfort level is improved, the volume and the tone quality of the bone conduction earphone are improved, the bone conduction earphone can restore and finally conduct sound to the auditory system of a user to be richer, the frequency section of bone conduction sound is larger, the problem of sound leakage commonly existing in the bone conduction earphone at present is solved, bone conduction has different sound conduction directions, the bone conduction sound has two directions in the longitudinal and transverse directions when the depth of the bone conduction sound is improved, and the user can identify the source position of external sound, including the relative direction and the relative distance of the sound source. For example, the bone conduction device 2 bone-conducts sound through two different locations of the inner bone-conduction surface and the side bone-conduction surface, respectively.

The ear hook 3 is provided with a hanging ear part for hanging on the human ear and a rear mounting part which is positioned at the rear side of the human ear when being worn, the bone conduction device 2 is fixed at the rear mounting part of the ear hook 3, the inner surface of the bone conduction device 2 is provided with an inner bone conduction surface which is used for abutting against the head skin at the rear side of the ear and realizing bone conduction on the head skin, and one side surface of the bone conduction device 2 facing the human ear is provided with a side bone conduction surface which is used for abutting against the back of the ear and realizing bone conduction on the back of the ear. The surface plane or curved surface of the inner bone transmission surface, the surface of the side bone transmission surface is a plane or curved surface, and the inner bone transmission surface and the side bone transmission surface are respectively attached to the corresponding abutting surfaces so as to improve wearing comfort and bone conduction effect. The conduction direction and conduction path of the bone conduction sound wave conducted to the skull or ossicular nerve tissue of the human body are different in the bone conduction process of the inner bone conduction surface and the side bone conduction surface, so that the bone conduction device 2 can more accurately reproduce and conduct external sound, and particularly reproduce the direction, distance and strength of the sound source through bone conduction.

The frequency section of the bone conduction sound wave conducted by the inner bone conduction surface is the same as the frequency section of the bone conduction sound wave conducted by the side bone conduction surface. Preferably, the frequency section of the bone conduction sound wave conducted by the inner bone conduction surface and the frequency section of the bone conduction sound wave conducted by the side bone conduction surface have only partially overlapped sections, or the frequency section of the bone conduction sound wave conducted by the inner bone conduction surface and the frequency section of the bone conduction sound wave conducted by the side bone conduction surface have partially overlapped sections which are completely different. Because the volume of the bone conduction device 2 is very small, the bone conduction device 2 can only realize the full-frequency conduction technical scheme by a single bone conduction element, but the full-frequency conduction technical scheme still cannot be realized at present, and the production of a vibration unit in the bone conduction element and a special medium surface serving as a bone conduction surface is very difficult and the price is very high. The inner bone transmission surface and the side bone transmission surface of the bone conduction device 2 respectively conduct the sound of different frequency sections, for example, the bone conduction sound is realized by matching one bone conduction vibration component 5 with the inner bone transmission surface and the side bone transmission surface respectively, the bone conduction sound is realized by matching one bone conduction vibration component 5 with the inner bone transmission surface, the bone conduction sound is realized by matching the other bone conduction vibration component 5 with the side bone transmission surface, the problem that the sound quality of the bone conduction earphone is improved and the direction, the distance and the strength of the sound source can be reproduced is solved on the premise of reducing the cost of the bone conduction device 2 in the limited space of the bone conduction device 2, the sound of the full frequency section which can be recognized by the auditory nerve of the human body is conducted and reproduced, and the sound of the full frequency section which can be recognized by the auditory nerve of the human body is also conducted and reproduced on the premise of reducing the cost of the bone conduction device 2.

The bone conduction earphone is provided with a left ear hook 3, a right ear hook 3, two earphone wires 4 and a wire length adjusting mechanism, a bone conduction device 2 is fixed at the rear installation part of each ear hook 3, the first ends of the two earphone wires 4 are respectively electrically connected with the two bone conduction devices 2, the second ends are respectively electrically connected with the earphone main body 1, and the wire length adjusting mechanism is arranged in the middle of the two earphone wires 4 so as to adjust the tension between the two ear hooks 3 and the pressure of the bone conduction device 2 on the skin of a human body.

The tightness of the two ear-hooks 3 can be adjusted by adjusting the position of the wire clamp 41 to change the total length of the two earphone wires 4 between the two ear-hooks 3 connected together through the wire clamp 41, and the pressure of the bone conduction device 2 to the skin can also be adjusted, for example, the wire clamp 41 is moved towards one side of the ear-hook 3 by a set distance to clamp the earphone wire 4, the tension of the two ear-hooks 3 is increased through the earphone wire 4, namely the clamping force of the two ear-hooks 3 is increased, otherwise, the tension between the two ear-hooks 3 is reduced by clamping the earphone wire 4 after the wire clamp 41 is moved towards one side of the earphone body 1, namely the clamping force of the two ear-hooks 3 is reduced. So that all wearers can obtain better comfort and better sound receiving effect.

The bone conduction earphone can achieve better effect only by tightly abutting the bone conduction device 2 on the skull of the human body; the traditional bone conduction earphone adopts a head band clamping mode, the bone conduction device 2 is arranged at two ends of the head band and is clamped on the skull of a human body, and because the clamping force cannot be adjusted, people with large head circumference can wear the bone conduction earphone partially; the invention ensures the wearing comfort of any crowd by adjusting the clamping force through adjusting the wire clamp 41.

The wire length adjusting mechanism comprises an adjusting wire clamp 41, the adjusting wire clamp 41 is provided with a threading sliding sleeve and a wire pressing block 42 movably mounted in the threading sliding sleeve, an elastic element capable of being movably propped against the wire pressing block 42 is mounted in the threading sliding sleeve, a wire clamping hole is formed in the threading sliding sleeve along the vertical direction of the moving direction of the wire pressing block 42, two earphone wires 4 respectively movably penetrate through the wire clamping hole, the wire pressing block 42 respectively elastically props against the two earphone wires 4 so as to clamp the earphone wires 4, and the wire pressing block 42 is provided with a pressing part protruding out of the threading sliding sleeve.

Preferably, the wire length adjusting mechanism comprises a wire winding and unwinding mechanism, the wire winding and unwinding mechanism is provided with a wire winding box, a wire winding shaft or a wire winding drum rotatably arranged in the wire winding box, an elastic element is arranged on the wire winding shaft or the wire winding drum, a locking mechanism is arranged on the wire winding box, the wire winding shaft or the wire winding drum, at least one wire outlet is arranged on the wire winding box, and the earphone wire 4 passes through the wire outlet and is wound on the wire winding shaft or the wire winding drum. Similarly, by winding or paying out the earphone wire 4, the total length of the two earphone wires 4 between the two ear hooks 3 connected together through the wire winding and unwinding mechanism is changed through the wire winding and unwinding mechanism, so that the tightness of the two ear hooks 3 can be adjusted, and the clamping force of the two ear hooks 3 can be adjusted.

The ear hook 3 is provided with a hook part and a rear mounting part, the tail end part of the hook part is integrally formed with a hook fixing part 31 matched with the external auditory canal of the human ear, the hook fixing part 31 and the rear mounting part are arranged at intervals relatively, an arc-shaped rod body used for being hung on the upper part of the ear is integrally formed between the hook part and the rear mounting part, the rear mounting part and the bone conduction device 2 are positioned on the rear side of the ear when the ear is worn, the rod body is hung on the upper part of the ear, and the hook fixing part 31 is plugged into the external auditory canal of the ear. The ear hook 3 is a C-shaped elastic flexible frame body, and the ear hook 3 is provided with an opening facing downwards; the earphone main body 1 comprises a U-shaped neck hanging frame 40, the left end and the right end of the neck hanging frame 40 are respectively provided with a functional part, a battery or a control circuit is arranged in the inner cavity of at least one functional part, a control key 46 electrically connected with the control circuit is arranged on the surface of at least one functional part, at least one functional part is provided with at least one radio microphone and/or noise reduction microphone electrically connected with the control circuit, and two earphone wires 4 penetrate out from the middle part of the rear side of the neck hanging frame 40; the upper part of the bone conduction device 2 is fixed at the lower end part of the rear mounting part, the lower part of the bone conduction device 2 is connected with the first end of an earphone wire 4, and the second end of the earphone wire 4 penetrates into the earphone main body 1 from the middle part of the neck hanging frame 40 and is electrically connected with a control circuit; the earphone wire 4 and the wire length adjusting mechanism which extend from the bone conduction device 2 to the earphone main body 1 are freely hung on the rear side of the head of the human body after the bone conduction earphone is worn; to achieve a pulling force pulling the two ear-hooks 3 towards the inside and a pressing force against the skin of the person using the bone conduction means 2.

The lug fixing portion 31 is integrally formed at the distal end portion of the rod body, the cross section of the lug fixing portion 31 is larger than that of the rod body, and the cross section of the lug fixing portion 31 is circular. The ear hook fixing portion 31 allows the ear hook 3 to be stably held in the upper portion in the ear.

The invention improves the structure of the bone conduction earphone, so that the bone conduction earphone can be worn in a brand new way, the tightness of the earphone wire 4 is regulated through the wire length regulating mechanism, so that the tightness of the ear hook 3 and the pressure of the human skin of the bone conduction device 2 are regulated, users with different head sizes can use and regulate the bone conduction device to the most comfortable state and the state with the best sound receiving effect, the head size and the shape of the users are not limited, the bone conduction device 2 always keeps proper tight force through the earphone wire 4 freely hanging between the bone conduction device 2 and the earphone host after the bone conduction device is worn, the bone conduction device 2 always keeps proper tight contact with the skin, and good transmission of sound is ensured.

Specifically, an ear-hanging hole 311 penetrating through the ear-hanging fixing portion 31 and keeping air communication is formed in the middle of the ear-hanging fixing portion 31, external sound and balanced external air pressure can be heard through the ear-hanging hole 311, and the design of the ear-hanging hole 311 enables the ear-hanging fixing portion 31 to have larger deformation, so that wearing comfort can be improved when the ear-hanging device is worn. The ear-hanging hole 311 can be kept in communication with air during wearing, so that the user's ear can directly receive the sound transmitted to the ear through air, and the bone conduction device 2 can be received while directly receiving the external sound for the user, which can make the ear of the user with weak hearing receive more sound for the user with weak hearing, and can keep the ear-hanging hole 311 of the ear-hanging 3 with normal hearing for the user with only one ear in communication with air.

The earphone main body 1 is provided with a wireless communication module or an audio input interface which is electrically connected with the control circuit, and is wirelessly connected with electronic equipment such as a mobile phone or a television through the wireless communication module so as to receive and play corresponding voice or audio files through the wireless communication module or the audio input interface.

Specifically, an ear hook 3 is disposed on an ear-conduction device 2, the first ends of two earphone wires 4 are respectively and electrically connected to the earphone body 1, the outer ends are respectively and electrically connected to the two bone-conduction devices 2, so as to provide power, control signals and audio data for the bone-conduction devices 2, the ear hook 3 is arc-shaped and is adapted to the auricle of the human ear, the front end of the ear hook 3 is fixedly connected to the bone-conduction device 2, the tail end of the ear hook 3 is provided with an ear hook fixing portion 31 which is matched with the external auditory canal of the human ear, and the ear hook fixing portion 31 is movably plugged with an earplug 45. The earplug 45 is inserted into the ear-hanging hole 311, the earplug 45 is in interference fit with the ear-hanging hole 311, and the earplug 45 seals the ear to isolate external sound. When physical noise reduction is needed, the ear-hanging hole 311 is plugged by the earplug 45, so that environmental sound cannot enter the auditory canal, and the physical noise reduction is realized; when the ambient sound needs to be heard, the earplug 45 is removed, and the external ambient sound enters the auditory canal through the ear-hanging hole 311 and then is transmitted to the auditory nerve. The design is simple in structure, the earplug 45 is convenient to replace, the replacement cost is low, the earplug 45 can be taken down when the earplug 45 is not used, the earplug 45 cannot swing up and down and left and right irregularly, and the experience is good; earplug 45 and ear-hook adopt the silica gel material, wear comfortablely, and the noise reduction is effectual.

The traditional earplug 45 is fixedly arranged on the bone conduction earphone, and is worn when needed and taken down when not needed; the earplug 45 is fixed on the earphone body through the earphone wire 4, and when in movement, the earplug is easy to shake, so that the experience is affected; the earplug 45 is directly fixed to the earphone body, so that wearing comfort is reduced, and discomfort is caused when the earphone is worn for a long time. The invention arranges a hanging ear fixing part 31 at the tail end of the ear hook 3, the hanging ear fixing part 31 is matched with the external auditory meatus; when the ear hook is worn, the ear hook 3 is hung on the ear along the auricle, the auricle meatus is plugged by the ear hook fixing part 31, and after the auricle meatus is plugged by the ear hook fixing part 31, external environmental sound cannot enter auditory nerves through the auricle, so that physical noise reduction can be realized.

The front end of the ear hook 3 of the traditional ear-hanging earphone is not provided with a fixed point, the earphone is easy to fall off or has poor sound receiving effect when in intense movement, particularly when in jump, the human body moves vertically compared with the ground, and the fixing capability of the ear-hanging earphone in the vertical direction is weaker; the ear hook 3 is hung above the auricle of the ear, the front end of the ear hook 3 extends to the middle of the auricle, the ear hook fixing part 31 is plugged into the external auditory meatus, a fixing point is additionally arranged on the ear, the earphone is firmly fixed on the ear, and the stability is good when the human body moves vertically or transversely.

The power supply system is electrically connected with the control main board, the power supply system supplies power to the control main board, the control main board transmits received audio signals to the two bone conduction devices 2 through the earphone wire 4, the bone conduction devices 2 convert the audio signals into amplitude, and the head bone is vibrated to transmit sound; the sound receiving device is used for picking up external sounds and transmitting the collected sounds to the control main board so as to realize an intercom function; preferably, the left end and the right end of the earphone main body 1 are respectively provided with a sound receiving device, wherein one sound receiving device is responsible for collecting voice intercom; the other radio device is responsible for collecting environmental sounds and actively reducing noise. The earphone body 1 is provided with a Bluetooth module for wireless transmission of audio signals, and the Bluetooth module is electrically connected with the control main board. The Bluetooth module receives and transmits the audio signals without connecting a sound source by wires, so that the mobility and the convenience are improved.

Preferably, the traditional earphone 43 is tightly plugged into the ear-hanging hole 311, and the traditional earphone 43 is electrically connected to the earphone body 1 through the traditional earphone wire 44, or the traditional earphone 43 is wirelessly connected to the earphone body 1 through a Bluetooth, WIFI and other wireless communication modules, and the traditional earphone 43 can also be electrically connected through the earphone wire 44 connected to the earphone body 1, so that the external sound is isolated, and meanwhile, the sound of the traditional earphone 43 and the bone conduction device 2 is heard. External sounds are obtained from a sound receiving microphone mounted on the earphone body 1 and transmitted to the conventional earphone 43 for playback, and audio such as music can be played through the conventional earphone 43.

Bone conduction earphone is because through the skull transmission sound, does not have the sound field, and is relatively ordinary air conduction's earphone, and tone quality is relatively poor, experiences inadequately. The traditional earphone 43 is integrated into the bone conduction earphone, so that the bone conduction earphone and the traditional earphone 43 can be switched at will, or the bone conduction earphone and the traditional earphone 43 work simultaneously; the ear hook 3 is hung on the ear along the auricle when the ear hook 3 is worn, and the ear hook 31 is plugged into the external auditory meatus, so that the external auditory meatus and the ear hook 31 are sealed. The environmental sound enters the external auditory meatus through the ear hanging hole 311 of the hanging ear fixing part 31, and it is ensured that the environmental sound can still be heard when the bone conduction earphone is used alone. The traditional earphone 43 is combined with the bone conduction earphone, the stethoscope effect is avoided during movement, the external auditory canal can not be blocked, the double ears are opened, the use possibility of the earphone in a dangerous scene is guaranteed, the earphone is used, the change of the surrounding environment can be noted, and the use is safer. When listening to music, the sound quality is better by adopting air to conduct sound.

The conventional earphone 43 is provided with at least one sounding unit, which is provided with a protruding head for transmitting sound to the human ear, and the head of the sounding unit is in interference fit with the corresponding ear-hanging hole 311. When the traditional earphone 43 is inserted into the ear hanging hole 311, the external auditory canal is blocked, and at the moment, the environment sound cannot be heard, and when the traditional earphone 43 does not work, the effect of physically reducing noise of the bone conduction earphone is achieved; the traditional earphone 43 and the bone conduction earphone can work simultaneously, so that the sound quality is better, and the sound is more stereo; the conventional earphone 43 can also work alone, and can relieve the sense of urgency when the bone conduction earphone is pressed against the skull for a long time.

In a preferred embodiment, the bone conduction device 2 comprises a housing 21, a bone conduction vibration component 5 fixed in the inner cavity of the housing 21, and at least one bone conduction composite medium sheet 6 fixed on the bone conduction surface of the housing 21, wherein the bone conduction vibration component 5 is arranged at the rear side of the bone conduction composite medium sheet 6, and the bone conduction composite medium sheet 6 is compounded with at least one hard medium sheet 62 and at least one elastic soft medium sheet 61. The bone conduction composite medium sheet 6 has an elastic soft medium sheet 61 for mainly reducing low-frequency vibration of bass and having a high amplitude, and a hard medium sheet 62 for mainly reducing low-middle and high-frequency vibration, which is adapted to the middle-high frequency vibration.

The elastic soft dielectric film 61 is made of soft and elastic cloth, paper, artificial leather, animal leather, plastic sheets and the like, or the elastic soft dielectric film 61 is a thin film or a thin sheet formed by compounding at least two material layers, the vibration frequency of the elastic soft dielectric film 61 which is installed in a tensioning mode is low, the elastic soft dielectric film 61 is matched with the vibration frequency of a low-frequency sound source, the elastic soft dielectric film 61 is very good in the aspects of conduction of the low-frequency sound source and low-frequency expressive force, the amplitude of the elastic soft dielectric film 61 is larger, the sinking degree of a low-frequency sound part is deeper, namely the low-frequency sound effect is better, the low-frequency reduction degree is higher, and the problem that the low-frequency sound part leaks seriously in the prior art is solved. The hard medium sheet 62 is a thin sheet made of plastic or metal, or the hard medium sheet 62 is a thin sheet formed by compounding at least two material layers, the hard medium sheet 62 can be a solid sheet, or can be a composite sheet with a plurality of mutually independent resonance cavities, for example, the hard medium sheet 62 is a honeycomb composite board with a honeycomb partition plate compounded in the middle of the solid sheet compounded on the upper surface and the lower surface, the hard medium sheet 62 has better expressive force on the conduction and sound principles of medium-frequency and high-frequency sound sources, and no leakage sound occurs in the medium-frequency sound sources and the high-frequency sound sources, so that the bone conduction composite medium sheet 6 has better bone conduction capability in bass, midrange sound and high-frequency sound, has high reduction degree of sound for bass, midrange sound and high-frequency sound, has better sound quality and sound effect obtained by bone conduction reduction, and does not occur in the bone conduction process of the full-frequency sound sources.

In the preferred embodiment of the bone conduction composite medium sheet 6, the bone conduction composite medium sheet 6 includes an elastic soft medium sheet 61 located in the middle region and a hard medium sheet 62 integrally combined with the outer edge of the elastic soft medium sheet 61. The hard medium sheet 62 has a circular ring shape, the elastic soft medium sheet 61 has a circular shape, and the elastic soft medium sheet 61 fills a hollow area fixed in the middle of the hard medium sheet 62.

In the preferred embodiment of the bone conduction composite medium sheet 6, the bone conduction composite medium sheet 6 includes a hard medium sheet 62 located in the middle region and an elastic soft medium sheet 61 integrally combined with the outer edge of the hard medium sheet 62. The elastic soft dielectric film 61 is in a circular ring shape, the hard dielectric film 62 is in a circular shape, and the hard dielectric film 62 fills a hollow area fixed in the middle of the elastic soft dielectric film 61.

In the preferred embodiment, the elastic soft dielectric sheet 61 of the bone conduction composite dielectric sheet 6 is elastically fixed to the housing 21 in tension, and only one hard dielectric sheet 62 is compounded in the middle region of the bone conduction composite dielectric sheet 6.

In the preferred embodiment, the elastic soft dielectric film 61 of the bone conduction composite dielectric film 6 is elastically fixed to the casing 21 in tension, and an elastic soft dielectric film 61 and a hard dielectric film 62 are combined up and down in the middle area of the bone conduction composite dielectric film 6. Namely, the elastic soft dielectric film 61 is a thin sheet which is continuously distributed and round, has elasticity, and is compositely fixed with a hard dielectric sheet 62 with a round diameter smaller than that of the elastic soft dielectric film 61 at the middle part. The bone conduction composite medium sheet 6, in which the hard medium sheet 62 is compounded in the local area in the middle of the elastic soft medium sheet 61, has better bass performance, better midrange and treble performance in the bone conduction process, more balanced comprehensive performance of bass, midrange and treble in the bone conduction process, better sound quality and sound quality, and no leakage.

The hard medium sheet 62 is a thin sheet made of plastic or metal for transmitting a middle and high frequency sound source or a full frequency sound source, the elastic soft medium sheet 61 is a thin sheet or sheet having elasticity for transmitting a middle and low frequency sound source or a low frequency sound source only, the outer contour shapes of the elastic soft medium sheet 61 and the hard medium sheet 62 are preferably circular, and the outer contour shape of the bone conduction composite medium sheet 6 is preferably circular.

Preferably, the elastic soft dielectric film 61 is tightly fixed on the casing 21 or the hard dielectric film 62 with a tension of 0.1-20Kg, preferably, the elastic soft dielectric film 61 is tightly fixed on the casing 21 or the hard dielectric film 62 with a tension of 0.5-5Kg, so as to better conduct the low frequency sound source with frequency lower than 160Hz, and the conducted bass portion has deeper sinking performance and better bass expressive force.

Preferably, a bone conduction surface shell layer 22 is arranged or compounded on the outer surface of the bone conduction surface or the outer surface of the bone conduction composite medium sheet 6, and the bone conduction surface shell layer 22 is abutted against the skin of a human body, so that the comfort is improved while the bone conduction is realized.

At least one bone conduction medium sheet and at least one bone conduction composite medium sheet 6 are fixed on the bone conduction surface of the shell 21, namely at least two bone conduction vibration sheets with different structural designs are arranged on the bone conduction surface, wherein the bone conduction medium sheet is a traditional bone conduction sheet, or the bone conduction medium sheet is a bone conduction vibration sheet with a single material layer or only a single structural layer, and the bone conduction composite medium sheet 6 is a bone conduction vibration sheet with at least two different material layers or with a composite structural design, preferably, one bone conduction composite medium sheet 6 is composited on the outer surface or the inner surface of the bone conduction medium sheet.

For the elastic soft dielectric sheet 61 and the hard dielectric sheet 62 which are spliced laterally adjacent to each other or spliced internally and externally adjacent to each other, the elastic soft dielectric sheet 61 and the hard dielectric sheet 62 are bonded or adhesively combined into a single body at the mutually adjoining junctions.

Alternatively, the elastic soft dielectric sheet 61 and the hard dielectric sheet 62 are stacked one above the other, and the elastic soft dielectric sheet 61 and the hard dielectric sheet 62 are bonded or adhered to each other at the mutually stacked contact surfaces.

A bracket 23 is fixed in the inner cavity of the housing 21 of the bone conduction device 2, the bone conduction vibration component 5 is mounted on the bracket 23, the bone conduction composite medium sheet 6 is fixed on the rear side surface of the inner cavity of the housing 21 to form a bone conduction surface, a conduction space 57 is arranged between the bone conduction composite medium sheet 6 and the bone conduction vibration component 5, and vibration waves are generated and conducted through air compression of the conduction space 57. Specifically, the bone conduction vibration component 5 includes a coil support 51, a coil 52, a magnetic steel pull rod 53, a steel sheet 54, a U cup 55 and a magnetic steel 56, the coil support 51 is fixedly installed on the housing 21 or the support 23, the coil support 51 is provided with a cylinder, the coil 52 is wound and installed on the cylinder, the U cup 55 is fixed on the lower portion of the magnetic steel 56, the U cup 55 is provided with a wall body extending upwards and encircling the outer edge of the magnetic steel 56, the middle upper portion of the magnetic steel 56 is movably sleeved in an inner cavity of the cylinder, the wall body of the U cup 55 is located between the cylinder and the outer edge of the coil, the magnetic steel pull rod 53 is movably installed on the coil support 51 or the support 23, the lower portion of the magnetic steel pull rod 53 is fixed on the magnetic steel 56, the steel 54 is installed on the upper portion of the coil support 51 or the support 23, the steel sheet 54 is arranged on the rear side of the bone conduction composite medium sheet 6, the bone conduction composite medium sheet 6 and the steel sheet 54 are arranged at intervals to form a conduction space 57, a steel sheet 54 through hole is formed in the middle portion of the steel sheet 54, the upper portion of the magnetic steel pull rod 53 is provided with a steel rod head, and the head is movably inserted in the through hole of the steel 54, and extends into the conduction space 57.

Preferably, the inner surface of the housing 21 is provided with a bone conduction surface for abutting against and conducting bone at the skin of the head on the back side of the ear, and one of the sides intersecting the inner surface is provided with another bone conduction surface for abutting against and conducting bone at the back side of the ear.

Claims

1. The utility model provides a modified bone conduction earphone, bone conduction earphone includes earphone main part (1), earphone cord (4), bone conduction device (2) and ear-hook (3), and bone conduction device (2) are fixed in ear-hook (3), and earphone cord (4) are electric connection earphone main part (1) and bone conduction device (2) respectively, its characterized in that:

the ear hook (3) is provided with a hanging ear part used for being hung on the ear of a human body and a rear mounting part positioned at the rear side of the ear of the human body when the ear hook is worn, the bone conduction device (2) is fixed at the rear mounting part of the ear hook (3),

the inner surface of the bone conduction device (2) is provided with an inner bone conduction surface which is used for abutting against the head skin at the rear side of the ear and realizing bone conduction on the head skin, and one side surface of the bone conduction device (2) facing the human ear is provided with a side bone conduction surface which is used for abutting against the back of the ear and realizing bone conduction on the back of the ear;

bone conduction sound is realized by matching an inner bone transmission surface and a side bone transmission surface respectively through a bone conduction vibration component (5), the bone conduction sound in two directions is provided,

the conduction direction and the conduction path of the bone conduction sound wave conducted to the skull and/or ossicular nerve tissue of the human body in the bone conduction process are different from each other on the inner bone conduction surface and the side bone conduction surface,

the bone conduction device (2) has at least two bone conduction paths for bone conduction sound waves from different positions and different orientations into the head of the human body.

2. An improved bone conduction headset as recited in claim 1, wherein: the surface of the side bone transmission surface is a plane or a curved surface; the frequency region of the bone conduction sound wave conducted by the inner bone conduction surface and the frequency region of the bone conduction sound wave conducted by the side bone conduction surface have local overlapping regions or are completely different.

3. An improved bone conduction headset as recited in claim 1, wherein: the bone conduction device (2) comprises a shell (21), a bone conduction vibration component (5) fixed in the inner cavity of the shell (21) and at least one bone conduction composite medium sheet (6) fixed on a bone conduction surface of the shell (21), wherein the bone conduction vibration component (5) is arranged at the rear side of the bone conduction composite medium sheet (6), and the bone conduction composite medium sheet (6) is compounded with at least one hard medium sheet (62) and at least one elastic soft medium sheet (61); the bone conduction surface includes an inner bone conduction surface and/or a side bone conduction surface.

4. An improved bone conduction headset as in claim 3, wherein: the bone conduction composite medium sheet (6) comprises an elastic soft medium sheet (61) positioned in the middle area and a hard medium sheet (62) integrally compounded on the outer edge of the elastic soft medium sheet (61); alternatively, the bone conduction composite medium sheet (6) includes a hard medium sheet (62) located in the middle region and an elastic soft medium sheet (61) integrally laminated on the outer periphery of the hard medium sheet (62).

5. An improved bone conduction headset as in claim 3, wherein: the elastic soft medium membrane (61) of the bone conduction composite medium sheet (6) is elastically and tightly fixed on the shell (21), and only one hard medium sheet (62) is compounded in the middle area of the bone conduction composite medium sheet (6) or one elastic soft medium membrane (61) and one hard medium sheet (62) are compounded above and below the middle area of the bone conduction composite medium sheet (6).

6. An improved bone conduction headset as in claim 3, wherein: a bone conduction surface shell layer (22) is arranged or compounded on the outer surface of the bone conduction surface or the outer surface of the bone conduction composite medium sheet (6), the hard medium sheet (62) is a hard thin sheet for conducting medium-high frequency sound sources or full-frequency sound sources, and the elastic soft medium film (61) is a thin sheet or film with elasticity for conducting medium-low frequency sound sources or only conducting low frequency sound sources.

7. An improved bone conduction headset as in claim 3, wherein: the elastic soft medium membrane (61) and the hard medium membrane (62) are in press fit or adhesion combination at the mutually adjacent connection parts.

8. An improved bone conduction headset as in claim 3, wherein: the elastic soft dielectric film sheet (61) and the hard dielectric sheet (62) are bonded and compounded or adhered and compounded into a whole at mutually overlapped joint surfaces.

9. An improved bone conduction headset according to any one of claims 1 to 8, wherein: the bone conduction earphone is provided with a left ear hook (3), a right ear hook (3), two earphone wires (4) and a wire length adjusting mechanism, wherein the rear mounting part of each ear hook (3) is fixedly provided with one bone conduction device (2), the first ends of the two earphone wires (4) are respectively electrically connected with the two bone conduction devices (2), the second ends of the two earphone wires are respectively electrically connected with the earphone main body (1), the wire length adjusting mechanism is arranged on the two earphone wires (4) so as to realize the adjustment of the tension between the two ear hooks (3) and/or the pressure of the bone conduction devices (2) on the skin of a human body, at least one bone conduction vibration component (5) is arranged in an inner cavity of each bone conduction device (2), and the bone conduction vibration component (5) is arranged on the rear side of an inner bone transmission surface or a side bone transmission surface.

10. An improved bone conduction headset as in claim 9, wherein: a bracket (23) is fixed in the inner cavity of the shell (21) of the bone conduction device (2), the bone conduction vibration component (5) is arranged on the bracket (23), the bone conduction composite medium sheet (6) is fixed on the rear side surface of the inner cavity of the shell (21) to form a bone conduction surface, and a conduction space (57) is formed between the bone conduction composite medium sheet (6) and the bone conduction vibration component (5);

the bone conduction vibration component (5) comprises a coil bracket (51), a coil (52), a magnetic steel pull rod (53), a steel sheet (54), a U cup (55) and magnetic steel (56), wherein the coil bracket (51) is fixedly arranged on a shell (21) or the bracket (23), the coil bracket (51) is provided with a cylinder body, the coil (52) is wound and arranged on the cylinder body, the U cup (55) is fixed on the lower part of the magnetic steel (56), the U cup (55) is provided with a wall body which extends upwards and surrounds the outer edge of the magnetic steel (56), the middle upper part of the magnetic steel (56) is movably sleeved in an inner cavity of the cylinder body, the wall body of the U cup (55) is positioned between the cylinder body and the outer edge of the winding, the magnetic steel pull rod (53) is movably arranged on the coil bracket (51) or the bracket (23), the lower part of the magnetic steel pull rod (53) is fixed on the magnetic steel (56), the steel (54) is arranged on the upper part of the coil bracket (51) or the bracket (23), the steel sheet (54) is arranged on the rear side of the magnetic steel sheet (6), the magnetic steel composite medium sheet (6) is arranged, the magnetic steel rod head (54) is provided with a through hole (54) which is arranged in parallel to the space between the magnetic steel rod head (54) and the magnetic steel (54), the club head extends into the conducting space (57).

11. An improved bone conduction headset as in claim 9, wherein: the wire length adjusting mechanism comprises an adjusting wire clamp (41), the adjusting wire clamp (41) is provided with a threading sliding sleeve and a wire pressing block (42) movably installed in the threading sliding sleeve, an elastic element movably propping against the wire pressing block (42) is installed in the threading sliding sleeve, a wire clamping hole is formed in the threading sliding sleeve along the vertical direction of the moving direction of the wire pressing block (42), two earphone wires (4) respectively movably penetrate through the wire clamping hole, the wire pressing block (42) respectively elastically propps against the two earphone wires (4), and a pressing part protruding out of the threading sliding sleeve is arranged on the wire pressing block (42);

the ear hook is characterized in that the ear hook (3) is provided with an ear hook part and a rear mounting part, an end part of the ear hook part is integrally formed with an ear hook fixing part (31) matched with an external auditory canal of a human ear, the ear hook fixing part (31) and the rear mounting part are arranged at opposite intervals, an arc-shaped rod body used for being hung on the upper part of the ear is integrally formed between the ear hook part and the rear mounting part, and the rear mounting part and the bone conduction device (2) are positioned on the rear side of the ear when the ear hook is worn, the rod body is hung on the upper part of the ear, and the ear hook fixing part (31) is plugged into the external auditory canal of the ear.

12. An improved bone conduction headset as in claim 11, wherein: the middle part of the hanging lug fixing part (31) is provided with an ear hanging hole (311) penetrating through the hanging lug fixing part (31); the ear hanging hole (311) is communicated with air, or an earplug (45) is tightly plugged in the ear hanging hole (311), or a traditional earphone (43) electrically connected with the earphone main body (1) or the bone conduction device (2) is tightly plugged in the ear hanging hole (311).

13. An improved bone conduction headset as in claim 12, wherein: the ear hook (3) is a C-shaped elastic flexible frame body, and the ear hook (3) is provided with an opening facing downwards;

the earphone main body (1) comprises a U-shaped neck hanging frame (40), the left end and the right end of the neck hanging frame (40) are respectively provided with a functional part, a battery or a control circuit is arranged in the inner cavity of at least one functional part, a control key (46) electrically connected with the control circuit is arranged on the surface of at least one functional part, at least one functional part is provided with at least one radio microphone and/or noise reduction microphone electrically connected with the control circuit, and two earphone wires (4) penetrate out from the middle part of the rear side of the neck hanging frame (40);

the upper part of the bone conduction device (2) is fixed at the lower end part of the rear mounting part, the lower part of the bone conduction device (2) is connected with a first end of the earphone wire (4), and a second end of the earphone wire (4) penetrates into the earphone main body (1) from the middle part of the neck hanging frame (40) and is electrically connected with a control circuit;

an earphone wire (4) extending from the bone conduction device (2) to the earphone main body (1) after the bone conduction earphone is worn and the wire length adjusting mechanism are freely hung on the rear side of the head of a human body;

the hanging lug fixing part (31) is integrally formed at the tail end part of the rod body, the section of the hanging lug fixing part (31) is larger than that of the rod body, and the section of the hanging lug fixing part (31) is circular.