CN112423182A

CN112423182A - Improved bone conduction earphone

Info

Publication number: CN112423182A
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: 2021-02-26
Anticipated expiration: 2040-11-13
Also published as: CN112423182B

Abstract

The invention discloses an improved bone conduction earphone which comprises an earphone body and an earphone wire, wherein the earphone 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 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 enabling bone conduction sound waves to enter 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 by adopting a low-cost technical scheme, improves the sound depth and sound effect of the bone conduction earphone, and conducts and reproduces the direction, distance and strength of a sound source.

Description

Improved bone conduction earphone

Technical Field

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

Background

The traditional bone conduction earphone is required to be tightly attached to the front side of the ear of a human body, the bone conduction earphone conducts sound waves to the auditory bone of the human body through the vibration of a steel sheet arranged in a shell, the sound waves are transmitted to the auditory center of people in a bone conduction mode, and a wearer can hear the sound.

The traditional bone conduction earphone generates sound waves by means of steel sheets and air vibration on the front side of the steel sheets, so that the frequency range of the sound waves which can be conducted by the bone conduction earphone is relatively small, namely, a problem of sound leakage exists, the distortion degree of the conducted sound waves is high, particularly, low-frequency sound with the frequency below 160Hz cannot be restored and conducted, and of course, a serious sound leakage phenomenon exists when high-frequency sound with the frequency of 2500 Hz-20000 Hz is restored and conducted, particularly, the higher-frequency sound or the lower-frequency sound.

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

In addition, the wearing structure of the bone conduction earphone at present causes the bone conduction device to be only attached to the skin on the front side of the ear, which is not the optimal sound wave conduction path for bone conduction and cannot well transmit the sound signal to the auditory center, so that improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an improved bone conduction earphone, which can improve the frequency range of the 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 purpose, the invention adopts the technical scheme that: the utility model provides an improved bone conduction earphone, bone conduction earphone includes earphone main part, earphone cord, bone conduction device and ear-hang, and bone conduction device is fixed in the ear-hang, and earphone main part and bone conduction device are connected to the earphone cord electricity respectively, and bone conduction device is provided with interior bone conduction face and side bone conduction face at least, and bone conduction device has at least two from different positions and/or different position bone conduction sound wave entering human head's bone conduction route.

Furthermore, the ear hook is provided with a hook part for being hung on a human ear and a rear mounting part which is positioned at the rear side of the human ear when the ear hook is worn, the bone conduction device is fixed on the rear mounting part of the ear hook, the inner surface of the bone conduction device is provided with the 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 facing the human ear is provided with a side bone conduction surface which is used for abutting against the back side of the ear and realizing bone conduction on the back side of the ear; the conduction directions and conduction paths of bone conduction sound waves conducted to skull and/or ossicular nerve tissues of a human body by the inner bone conduction surface and the side bone conduction surface are different in the bone conduction process.

Furthermore, the surface of the inner bone transmission surface is a plane or a curved surface, and the surface of the lateral bone transmission surface is a plane or a curved surface; 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 or are completely different.

Furthermore, the bone conduction device comprises a shell, a bone conduction vibration component fixed in an inner cavity of the shell and at least one bone conduction composite medium sheet fixed on a bone conduction surface of the shell, wherein 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 compounded with at least one hard medium sheet and at least one elastic soft medium membrane; the bone conduction surface includes an inner bone conduction surface and/or a lateral bone conduction surface.

Furthermore, the bone conduction composite medium sheet comprises an elastic soft medium membrane positioned in the middle area and a hard medium sheet integrally compounded on the outer edge of the elastic soft medium membrane; or the bone conduction composite medium sheet comprises a hard medium sheet positioned in the middle area and an elastic soft medium membrane integrally compounded on the outer edge of the hard medium sheet.

Furthermore, the elastic soft medium membrane of the bone conduction composite medium sheet is elastically tensioned and fixed on the shell, and only a hard medium sheet is compounded in the middle area of the bone conduction composite medium sheet or an elastic soft medium membrane and a hard medium sheet are compounded above and below the middle area of the bone conduction composite medium sheet.

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 membrane is an elastic thin sheet or membrane for conducting medium-low frequency sound sources or conducting only low frequency sound sources.

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

Furthermore, a bracket is fixed in an inner cavity of a shell of the bone conduction device, the bone conduction vibration component is mounted 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 formed 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 the shell or the support, the coil support is provided with a cylinder, the coil is wound on the cylinder, the U cup is fixed on the lower part of the magnetic steel, the U cup is provided with a wall body which extends upwards and surrounds 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, the wall body of the U cup is positioned between the cylinder and the outer edge of the winding, 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 on the rear side of the bone conduction composite medium sheet, the bone conduction composite medium sheet, the rod head is movably inserted into the steel sheet through hole and extends into the conduction space.

Furthermore, the line length adjusting mechanism comprises an adjusting line clamp, the adjusting line clamp is provided with a threading sliding sleeve and a line pressing block movably installed in the threading sliding sleeve, an elastic element movably abutting against the line pressing block is installed in the threading sliding sleeve, the threading sliding sleeve is provided with a line clamping hole along the direction perpendicular to the moving direction of the line pressing block, two earphone lines respectively and movably penetrate through the line clamping hole, the line pressing block respectively and elastically abuts against the two earphone lines, and the line pressing block is provided with a pressing part protruding out of the threading sliding sleeve;

the ear-hang is provided with hangers portion and back installation department, and hangers portion's terminal portion integrated into one piece have one with the external auditory canal assorted hangers fixed part of people's ear, hangers fixed part and back installation department relative interval set up, and integrated into one piece has the curved body of rod that is used for hanging on the upper portion of ear between hangers portion and the back installation department, and back installation department and bone conduction device are located the rear side of ear, the body of rod hang and lean on the external auditory canal of placing the ear in the upper portion of ear, hangers fixed part stopper when wearing.

Furthermore, the middle part of the hanger fixing part is provided with an ear hanging hole which penetrates through the hanger fixing part; the ear hanging hole is communicated with air, or an earplug is tightly inserted into the ear hanging hole, or a traditional earphone which is electrically connected with the earphone body or the bone conduction device is tightly inserted into the ear hanging hole.

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

the earphone 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, the inner cavity of at least one functional part is provided with a battery or a control circuit, 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 of 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 an 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 a control circuit;

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

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

the soft medium membrane and the hard medium sheet are pressed, compounded or bonded and compounded into a whole at the joint of the adjacent parts or the soft medium membrane and the hard medium sheet are pressed, compounded or bonded and compounded into a whole at the mutually overlapped joint surfaces.

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 by adopting a low-cost technical scheme, and simultaneously improves the depth, volume and sound effect of the sound of the bone conduction earphone, and conducts and reproduces the direction, distance and strength of a sound source.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

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

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

Fig. 4 is a schematic view of the earplug of the invention after insertion in an earhole.

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

The labels in the figure are:

1 earphone main body.

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

The 3-ear hook 31 is hung on the ear fixing part 311 and is hung on the hole.

4 earphone cord 40 hanging neck frame 41 adjusting cord clip 42 cord clip 43 traditional earphone 44 traditional earphone cord 45 earplug 46 control button.

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

6 bone conduction composite medium sheet 61 elastic soft medium membrane 62 hard medium sheet.

Detailed Description

The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.

The utility model provides an improved bone conduction earphone, as shown in fig. 1 to 5, bone conduction earphone includes earphone main part 1 and earphone cord 4, earphone main part 1 is provided with bone conduction device 2 and curved ear-hang 3, earphone cord 4 electricity respectively connects earphone main part 1 and bone conduction device 2, bone conduction device 2 is provided with interior bone conduction face and side bone conduction face at least, at least one bone conduction vibrations subassembly is installed to bone conduction device 2's inner chamber, bone conduction vibrations subassembly sets up the rear side of bone conduction face or side bone conduction face in, bone conduction device 2 has at least two bone conduction paths that get into human head from different positions and/or different position bone conduction sound wave. Bone conduction contact surface increases, promote and wear the comfort level, promote bone conduction earphone's volume and tone quality, bone conduction earphone can restore and finally conduct to user's auditory system's sound abundanter, bone conduction sound's frequency section is bigger, and eliminated present bone conduction earphone ubiquitous sound leakage problem, and bone conduction has different sound conduction directions, in the degree of depth that promotes bone conduction sound, make bone conduction sound have two directions of moving about freely and quickly, the user can discern the source position of external sound, relative direction and relative distance including the sound source. For example, the bone conduction device 2 conducts sound through two different locations, the medial bone conduction surface and the lateral bone conduction surface, respectively.

The ear-hang 3 is provided with the back installation department that is used for hanging the hangers portion of dress at human ear and is located the rear side of human ear when wearing, and bone conduction device 2 is fixed in the back installation department of ear-hang 3, and the internal surface of bone conduction device 2 is provided with the interior bone conduction face that is used for pasting the head skin of ear rear side and realizes bone conduction at this head skin, and one side of bone conduction device 2 towards human ear is provided with the side bone conduction face that is used for pasting the ear back and realizes bone conduction at this ear back. The surface plane or the curved surface of the inner bone transmission surface, the surface of the side bone transmission surface are planes or curved surfaces, and the inner bone transmission surface and the side bone transmission surface are respectively attached to corresponding abutting surfaces so as to improve the wearing comfort level and the bone transmission effect. The conduction directions and conduction paths of bone conduction sound waves conducted to the skull or the ossicular nerve tissue of the human body by the inner bone conduction surface and the side bone conduction surface are different in the bone conduction process, so that the bone conduction device 2 can reproduce and conduct external sounds more accurately, and particularly reproduce the direction, distance and strength of a 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 lateral 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 technical scheme of full-frequency conduction by a single bone conduction element, which cannot be realized at present, and the production of the vibration unit in the bone conduction element and the special medium surface as the bone conduction surface is very difficult and the price is very high. The inner bone-conduction surface and the side bone-conduction surface of the bone-conduction device 2 of the invention respectively conduct sounds of different frequency ranges, for example, one bone-conduction vibration component is respectively matched with the inner bone-conduction surface and the side bone-conduction surface to realize bone-conduction sounds, one bone-conduction vibration component is matched with the inner bone-conduction surface to realize bone-conduction sounds, and the other bone-conduction vibration component is matched with the side bone-conduction surface to realize bone-conduction sounds, so that the problem that in a limited space of the bone-conduction device 2, on the premise of reducing the cost of the bone-conduction device 2, sounds of a full frequency range which can be identified by human auditory nerves are conducted and reproduced, sounds of a full frequency range which can be identified by human auditory nerves can be conducted and reproduced, technical problems of sound leakage of a bone-conduction earphone can be solved by an ultra-low cost technical scheme, meanwhile, the sound quality is improved, and the direction of a sound source can be reproduced, Distance and strength.

Bone conduction earphone is provided with about two ear-hang 3, two earphone cords 4 and line length adjustment mechanism, and the back installation department of each ear-hang 3 all is fixed with a bone conduction device 2, and the first end electricity respectively of two earphone cords 4 connects in two bone conduction devices 2, the second end electricity respectively connects in earphone main part 1, and line length adjustment mechanism installs in the middle part of two earphone cords 4 to realize adjusting the pulling force between two ear-hang 3 and the pressure of bone conduction device 2 to human skin.

The total length of two earphone cords 4 between two ear-hang 3 that link together through adjusting the line clamp 41 is changed through the position of adjusting the fastener 41 and can adjust the elasticity of two ear-hang 3, also can adjust the pressure of bone conduction device 2 to skin, for example will adjust the fastener 41 and move a set distance towards one side at ear-hang 3 place and make the adjustment fastener 41 press from both sides tight earphone cord 4 again, increase the pulling force to two ear-hang 3 through earphone cord 4, namely increase two ear-hang 3 clamp forces, otherwise, adjust the fastener 41 and press from both sides tight earphone cord 4 again after moving towards earphone main body 1 one side and make the pulling force between two ear-hang 3 diminish, namely reduce the clamp force of two ear-hang 3. The wearer can feel comfortable and the radio effect is better.

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 hoop clamping manner, the bone conduction devices 2 are arranged at two ends of the head hoop and are clamped on the skull of a human body, and due to the fact that the clamping force cannot be adjusted, part of people with large head circumference can be uncomfortable to wear when in use; the invention ensures the wearing comfort of any people by adjusting the clamping force through the adjusting wire clamp 41.

Line length adjustment mechanism is including adjusting fastener 41, adjust fastener 41 and be provided with threading sliding sleeve and movable mounting's line ball 42 in the threading sliding sleeve, install the activity in the threading sliding sleeve and support in the elastic element of line ball 42, the line ball hole has been seted up along the vertical direction of line ball 42's moving direction to the threading sliding sleeve, two earphone cord 4 activities respectively pass the line ball hole, line ball 42 supports two earphone cords 4 in elasticity respectively, in order to realize pressing from both sides tight earphone cord 4, line ball 42 is provided with the splenium of pressing of a protrusion in the outside of 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 winding reel, a winding shaft or a winding roll rotatably mounted in the winding reel, the winding reel or the winding roll is provided with an elastic element, the winding reel or the winding roll is provided with a locking mechanism, the winding reel is provided with at least one wire outlet, and the earphone wire 4 passes through the wire outlet and is wound on the winding reel or the winding roll. In a similar way, the earphone wires 4 are wound or released, and the total length of the two earphone wires 4 between the two ear hooks 3 connected together through the wire rope retracting mechanism is changed through the wire rope retracting 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.

Ear-hang 3 is provided with hangers portion and back installation department, hangers portion's terminal portion integrated into one piece have one with the external auditory canal assorted hangers fixed part 31 of people's ear, hangers fixed part 31 sets up with the relative interval of back installation department, integrated into one piece has the curved body of rod that is used for hanging on the upper portion of ear between hangers portion and the back installation department, back installation department and bone conduction device 2 are located the rear side of ear when wearing, the body of rod is hung and is leaned on in the upper portion of ear, the external auditory canal of ear is put into in the plug of hangers fixed part 31. The ear hook 3 is a C-shaped flexible frame body with elasticity, and the ear hook 3 is provided with an opening facing downwards; the earphone 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, the inner cavity of at least one functional part is provided with a battery or a control circuit, the surface of at least one functional part is provided with a control key 46 which is electrically connected with the control circuit, at least one functional part is provided with at least one radio microphone and/or noise reduction microphone which are 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 an earphone wire 4, and a second end of the earphone wire 4 penetrates into the earphone 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 are extended from the bone conduction device 2 to the earphone main body 1 after the bone conduction earphone is worn are freely hung on the back side of the head of the human body; to achieve a pulling force that pulls the two ear loops 3 towards the medial side and a pressure against the skin of the human body using the bone conduction device 2.

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

The structure of the bone conduction earphone is improved, so that a brand new wearing mode can be used, the tightness of the earphone wire 4 is adjusted through the wire length adjusting mechanism, the tightness of the ear hook 3 and the pressure of the human skin of the bone conduction device 2 are adjusted, users with different head sizes can use the earphone wire and adjust the earphone wire to the most comfortable state and the best sound receiving effect, the earphone wire is not limited by the size and the shape of the head of the user, the bone conduction device 2 always keeps proper adhesion force through the earphone wire 4 freely hung between the bone conduction device 2 and an earphone host after being worn, the bone conduction device 2 always keeps proper adhesion to the skin, and sound transmission is guaranteed.

Specifically, an ear hanging hole 311 penetrating through the ear hanging fixing part 31 and keeping communicating with air is formed in the middle of the ear hanging fixing part 31, external sound can be heard and external air pressure can be balanced through the ear hanging hole 311, the ear hanging fixing part 31 has larger deformation due to the design of the ear hanging hole 311, and wearing comfort can be improved when the ear hanging fixing part is worn. The ear hook holes 311 can be kept communicated with air in the wearing process, so that the sound transmitted to the ears through the air can be directly received in the ears of a user, the bone conduction device 2 can be received while the external sound is directly received for the user, more sound can be received by the ears of the user with mild hearing, and the ear hook holes 311 of the ear hook 3 with normal hearing of the user with only one ear can be kept communicated with the air.

The earphone 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, a bone conduction device 2 is provided with one with the curved ear-hang 3 of the auricle looks adaptation of people's ear, the first end electricity respectively of two earphone cords 4 is connected in earphone main part 1, the outer end electricity respectively connects in two bone conduction devices 2, in order to realize providing the power to bone conduction device 2, control signal and audio data, ear-hang 3 is the arc with the auricle looks adaptation of people's ear, the preceding tip fixed connection of ear-hang 3 is in bone conduction device 2, the terminal portion of ear-hang 3 have one with the outer auditory canal assorted hangers fixed part 31 of people's ear, an earplug 45 has been put to hangers fixed part 31 activity stopper. The earplug 45 is tightly 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 the outside 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 ear canal, and the physical noise reduction is realized; when it is desired to listen to the ambient sound, the ear plug 45 is removed and the ambient sound from the outside enters the ear canal through the ear hook hole 311 and then is transmitted to the auditory nerve. The design not only has simple structure, but also has convenient and fast replacement of the earplugs 45 and low replacement cost, and the earplugs 45 can be taken down when the earplugs 45 are not used, so that the earplugs 45 cannot randomly swing up and down, left and right, and the experience is better; earplug 45 and ear-hang adopt the silica gel material, wear comfortable, and noise reduction effect is good.

The physical noise reduction adopted by the existing bone conduction earphone is to fixedly install the traditional earplug 45 on the bone conduction earphone, wear the earplug when needed and take the earplug down when not needed; the earplugs 45 are fixed on the earphone body through the earphone wire 4, and when the earphone body moves, the earplugs easily shake to influence the experience; the earplugs 45 are directly fixed on the earphone body, so that the wearing comfort is reduced, and discomfort can be caused after long-time wearing. The invention sets up a hangers fixed part 31 in the end part of the ear-hang 3, the hangers fixed part 31 matches with the external ear meatus; when wearing, the ear-hang 3 is hung on the ear along the auricle, plugs the external auditory canal opening with the hangers fixing part 31, and after the external auditory canal was plugged by the hangers fixing part 31, external environment sound could not enter auditory nerve through the auditory canal, and thus physical noise reduction can be realized.

The front end of the ear hook 3 of the traditional ear-hanging type earphone has no fixed point, the earphone is easy to fall off or the sound receiving effect is poor when the earphone is in violent movement, particularly when the earphone jumps, a human body moves vertically compared with the ground, and the fixing capacity of the ear-hanging type earphone in the vertical direction is weak; the ear hook 3 of the invention is hung above the auricle of the ear, the front end of the ear hook 3 extends to the middle part of the auricle, the ear hook fixing part 31 is plugged into the meatus of the external ear, a fixing point is additionally arranged on the ear to firmly fix the earphone on the ear, and the earphone has better stability in the vertical movement or the transverse movement of the human body.

The power supply system is electrically connected with the control mainboard, supplies power to the control mainboard, transmits the received audio signals to the two bone conduction devices 2 through the earphone cable 4, converts the amplitude of the audio signals by the bone conduction devices 2, and vibrates the skull to transmit sound; the radio device picks up external sound and transmits the collected sound to the control mainboard to realize the talkback function; preferably, the left end and the right end of the earphone body 1 are respectively provided with a radio device, wherein one radio device is responsible for collecting voice for talkback; and 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 wirelessly transmitting audio signals, and the Bluetooth module is electrically connected with the control mainboard. The Bluetooth module receives and transmits the audio signals without a wired connection sound source, so that the mobility and the convenience are improved.

The preferred, tightly pack into traditional earphone 43 in ear-hang hole 311, traditional earphone 43 passes through traditional earphone cord 44 electricity and connects in earphone main body 1, perhaps traditional earphone 43 passes through wireless communication module wireless connection earphone main body 1 such as bluetooth, WIFI, also can be through connecting in traditional earphone 43 of earphone main body 1's earphone cord 44 electricity connection, when keeping apart external sound, hears traditional earphone 43 and bone conduction device 2's sound simultaneously. The external sound is obtained from the sound receiving microphone installed on the earphone body 1 and is transmitted to the conventional earphone 43 to be played, and the audio such as music can also be played through the conventional earphone 43.

Bone conduction earphone does not have the sound field because it is through skull transmission sound, and more ordinary air conduction's earphone, tone quality is relatively poor, experiences not good. The invention integrates the traditional earphone 43 into the bone conduction earphone, and can be switched into the bone conduction earphone and the traditional earphone 43 at will, or the bone conduction earphone and the traditional earphone 43 work simultaneously; the ear-hanging fixing part 31 of the ear-hanging part 3 is matched with the external auditory meatus of the human body, when the ear-hanging part 3 is worn, the ear-hanging part 3 is hung on the ear along the auricle, and the external auditory meatus is sealed with the ear-hanging fixing part 31 by plugging the ear-hanging fixing part 31 at the external auditory meatus. The environmental sound enters the external auditory canal through the ear hanging hole 311 of the ear hanging fixing part 31, and the bone conduction earphone is ensured to be capable of receiving the environmental sound when being used alone. The traditional earphone 43 and the bone conduction earphone are combined in a transmission mode, a stethoscope effect is avoided during movement, the open ears of the external auditory canal can be prevented from being blocked, the possibility of using the earphone in dangerous scenes is guaranteed, the change of the surrounding environment can be noticed when the earphone is used, and the earphone is safer to use. When listening to music, the sound is conducted by air, and the tone quality is better.

The conventional earphone 43 is provided with at least one sound generating unit, which is provided with a protruding head for conducting sound to the ear, and the head of the sound generating unit is in interference fit with the corresponding ear hanging hole 311. When the traditional earphone 43 is inserted in the ear hanging hole 311 tightly, the external auditory canal is blocked, and the environment sound cannot be heard at the moment, so that the physical noise reduction effect of the bone conduction earphone is achieved when the traditional earphone 43 does not work; the traditional earphone 43 and the bone conduction earphone can work simultaneously, so that the tone quality is better and the sound is more three-dimensional; 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 the 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 membrane 61. The bone conduction composite medium sheet 6 has an elastic soft medium diaphragm 61 mainly for restoring low-frequency vibration of low pitch and high amplitude and a hard medium sheet 62 mainly for restoring low-middle pitch and high pitch and adapted to middle-high frequency vibration.

The elastic soft medium diaphragm 61 is made of soft and elastic cloth, paper, artificial leather, animal leather, plastic sheets and the like, or the elastic soft medium diaphragm 61 is a thin diaphragm or thin sheet formed by compounding at least two material layers, the vibration frequency of the elastic soft medium diaphragm 61 installed in a tensioning mode is low, the elastic soft medium diaphragm 61 is matched with the vibration frequency of a low-frequency sound source, the elastic soft medium diaphragm 61 is very good in the aspects of conduction and bass expressive force of the low-frequency sound source, the amplitude of the elastic soft medium diaphragm 61 is larger, the bass part is deeper, namely, the bass sound effect is better, the bass restoring degree is higher, and the problem that the sound leakage of the bass part is serious 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 a composite board with a plurality of independent resonance cavities arranged inside, for example, the hard medium sheet 62 is a honeycomb composite board with a solid sheet compounded on the upper and lower surfaces and a honeycomb partition compounded in the middle, the hard medium sheet 62 has better expressive force on the conduction and sound of the medium-frequency and high-frequency sound sources, no sound leakage occurs in the medium-frequency and high-frequency sound sources, therefore, the bone conduction composite medium sheet 6 has better bone conduction capability in bass, middle-pitch and treble, has high sound reduction degree for the bass, middle-pitch and treble, has better tone quality and sound effect obtained by bone conduction reduction, and does not generate sound leakage in the bone conduction process of a full-frequency sound source.

In the preferred embodiment of the bone conduction composite medium piece 6, the bone conduction composite medium piece 6 comprises an elastic soft medium membrane 61 in the middle area and a hard medium piece 62 integrally compounded on the outer edge of the elastic soft medium membrane 61. The hard medium sheet 62 is in a circular ring shape, the elastic soft medium diaphragm 61 is in a circular shape, and the elastic soft medium diaphragm 61 is filled and fixed in a hollow area in the middle of the hard medium sheet 62.

In the preferred embodiment of the bone conduction composite medium piece 6, the bone conduction composite medium piece 6 comprises a hard medium piece 62 positioned in the middle area and an elastic soft medium membrane piece 61 integrally compounded on the outer edge of the hard medium piece 62. The elastic soft medium diaphragm 61 is in a circular ring shape, the hard medium sheet 62 is in a circular shape, and the hard medium sheet 62 is filled and fixed in a hollow area in the middle of the elastic soft medium diaphragm 61.

In the preferred embodiment, the elastic soft medium membrane 61 of the bone conduction composite medium piece 6 is elastically fixed to the housing 21 in a tensioned manner, and only one hard medium piece 62 is compounded in the middle area of the bone conduction composite medium piece 6.

In the preferred embodiment, the elastic soft medium diaphragm 61 of the bone conduction composite medium piece 6 is elastically fixed on the housing 21 in a tensioning manner, and an elastic soft medium diaphragm 61 and a hard medium piece 62 are compounded above and below the middle area of the bone conduction composite medium piece 6. Namely, the elastic soft medium membrane 61 is a thin sheet material which is continuously distributed, circular, elastic and has a hard medium sheet 62 with a circular diameter smaller than that of the elastic soft medium membrane 61 fixed in the middle. The bone conduction composite medium sheet 6 which is compounded with the hard medium sheet 62 in the local area of the middle part of the elastic soft medium diaphragm 61 has better bass performance, middle-pitch performance and high-pitch performance in the bone conduction process, the comprehensive performance of the bass, the middle-pitch and the high-pitch is more balanced in the bone conduction process, the tone quality and the sound effect are better, and the sound leakage is avoided.

The hard medium sheet 62 is a hard thin sheet made of plastic or metal for conducting the medium-high frequency sound source or the full-frequency sound source, the elastic soft medium membrane 61 is an elastic thin sheet or membrane for conducting the medium-low frequency sound source or conducting only the low frequency sound source, the outer contour shapes of the elastic soft medium membrane 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 medium membrane 61 is fixed to the housing 21 or the hard medium plate 62 with a tension of 0.1 to 20Kg, and preferably, the elastic soft medium membrane 61 is fixed to the housing 21 or the hard medium plate 62 with a tension of 0.5 to 5Kg, so as to achieve better conduction of low-frequency sound sources with frequencies lower than 160Hz, and the conducted bass part has deeper sinking performance and better bass performance.

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 abuts 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 housing 21, that is, 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 single material layer or a bone conduction vibration sheet with a single structural layer, the bone conduction composite medium sheet 6 is a bone conduction vibration sheet with at least two different material layers or a composite structural design, and preferably, a bone conduction composite medium sheet 6 is compounded on the outer surface or the inner surface of the bone conduction medium sheet.

For the soft medium membrane 61 and the hard medium sheet 62 are transversely adjacently spliced or internally and externally adjacently spliced, the soft medium membrane 61 and the hard medium sheet 62 are pressed and compounded or bonded and compounded into a whole at the joint where the soft medium membrane 61 and the hard medium sheet 62 are mutually abutted.

Alternatively, the soft dielectric film 61 and the hard dielectric sheet 62 are stacked one on another, and the soft dielectric film 61 and the hard dielectric sheet 62 are bonded or press-bonded to each other at their stacked contact surfaces.

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, 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 comprises a coil support 51, a coil 52, a magnetic steel pull rod 53, a steel sheet 54, a U-shaped cup 55 and a magnetic steel 56, wherein the coil support 51 is fixedly arranged on the shell 21 or the support 23, the coil support 51 is provided with a cylinder, the coil 52 is wound on the cylinder, the U-shaped cup 55 is fixed on the lower part of the magnetic steel 56, the U-shaped 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, the wall body of the U-shaped cup 55 is positioned between the cylinder and the outer edge of the winding, the magnetic steel pull rod 53 is movably arranged on the coil support 51 or the support 23, the lower part of the magnetic steel pull rod 53 is fixed on the magnetic steel 56, the steel sheet 54 is arranged on the upper part of the coil support 51 or the support 23, the, the middle part of the steel sheet 54 is provided with a steel sheet 54 through hole, the upper part of the magnetic steel pull rod 53 is provided with a rod head, the rod head is movably inserted in the steel sheet 54 through hole, and the rod head extends into the conduction space 57.

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

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

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-hang (3), and bone conduction device (2) are fixed in ear-hang (3), and earphone main part (1) and bone conduction device (2), its characterized in that are connected to earphone cord (4) electricity respectively: the bone conduction device (2) is at least provided with an inner bone conduction surface and a side bone conduction surface, and the bone conduction device (2) is provided with at least two bone conduction paths for conducting sound waves from different positions and/or different directions to the head of a human body.

2. An improved bone conduction headset according to claim 1, wherein: the ear hook (3) is provided with an ear hook part for being hung on a human ear and a rear mounting part which is positioned at the rear side of the human ear when the ear hook is worn, the bone conduction device (2) is fixed on 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 side of the ear and realizing bone conduction on the back side of the ear; the conduction directions and conduction paths of bone conduction sound waves conducted to skull and/or ossicular nerve tissues of a human body by the inner bone conduction surface and the side bone conduction surface are different in the bone conduction process.

3. An improved bone conduction headset according to claim 2, wherein: 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 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 or are completely different.

4. An improved bone conduction headset according to claim 1, wherein: the bone conduction device (2) comprises a shell (21), a bone conduction vibration component (5) fixed in an 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 on 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 membrane (61); the bone conduction surface includes an inner bone conduction surface and/or a lateral bone conduction surface.

5. An improved bone conduction headset according to claim 4, wherein: the bone conduction composite medium sheet (6) comprises an elastic soft medium membrane (61) positioned in the middle area and a hard medium sheet (62) integrally compounded on the outer edge of the elastic soft medium membrane (61); or the bone conduction composite medium sheet (6) comprises a hard medium sheet (62) positioned in the middle area and an elastic soft medium membrane (61) integrally compounded on the outer edge of the hard medium sheet (62).

6. An improved bone conduction headset according to claim 4, wherein: the elastic soft medium diaphragm (61) of the bone conduction composite medium sheet (6) is elastically tensioned and fixed on the shell (21), and only a hard medium sheet (62) is compounded in the middle area of the bone conduction composite medium sheet (6) or the elastic soft medium diaphragm (61) and the hard medium sheet (62) are compounded above and below the middle area of the bone conduction composite medium sheet (6).

7. An improved bone conduction headset according to claim 4, wherein: the bone conduction composite sound source device is characterized in that 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 and high frequency sound sources or full frequency sound sources, and the elastic soft medium membrane (61) is an elastic thin sheet or membrane for conducting medium and low frequency sound sources or conducting only low frequency sound sources.

8. An improved bone conduction headset according to any one of claims 1 to 7, wherein: bone conduction earphone is provided with about two ear-hang (3), two earphone cord (4) and line length adjustment mechanism, each ear-hang (3) the back installation department all is fixed with one bone conduction device (2), the first end electricity of two earphone cords (4) connect respectively in two bone conduction device (2), second end electricity respectively in earphone main part (1), line length adjustment mechanism installs in two earphone cords (4) to realize adjusting the pulling force between two ear-hang (3) and/or the pressure of bone conduction device (2) to human skin, at least one bone conduction vibrations subassembly is installed to the inner chamber of bone conduction device (2), bone conduction vibrations subassembly sets up the rear side of bone conduction face or side bone conduction face in.

9. An improved bone conduction headset according to claim 8, 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 installed 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 support (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 support (51) is fixedly arranged on the shell (21) or the support (23), the coil support (51) is provided with a cylinder, the coil (52) is wound on the cylinder, 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, the wall body of the U cup (55) is positioned between the cylinder and the outer edge of a winding, the magnetic steel pull rod (53) is movably arranged on the coil support (51) or the support (23), the lower part of the magnetic steel pull rod (53) is fixed on the magnetic steel sheet (56), the coil support (54), 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 in parallel at intervals to form a conduction space (57), a through hole of the steel sheet (54) is formed in the middle of the steel sheet (54), a rod head is arranged on the upper portion of the magnetic steel pull rod (53), the rod head is movably inserted into the through hole of the steel sheet (54), and the rod head extends into the conduction space (57).

10. An improved bone conduction headset according to claim 8, wherein: the line length adjusting mechanism comprises an adjusting line clamp (41), the adjusting line clamp (41) is provided with a threading sliding sleeve and a line pressing block (42) movably installed in the threading sliding sleeve, an elastic element movably abutting against the line pressing block (42) is installed in the threading sliding sleeve, the threading sliding sleeve is provided with a line clamping hole along the vertical direction of the moving direction of the line pressing block (42), two earphone cords (4) respectively movably penetrate through the line clamping hole, the line pressing block (42) respectively elastically abuts against the two earphone cords (4), and the line pressing block (42) is provided with a pressing part protruding outside the threading sliding sleeve;

ear-hang (3) are provided with hangers portion and back installation department, the tip integrated into one piece of hangers portion have one with the external auditory canal assorted hangers fixed part (31) of people's ear, hangers fixed part (31) and the relative interval setting of back installation department, integrated into one piece has the curved body of rod that is used for hanging on the upper portion of ear between hangers portion and the back installation department, back installation department and bone conduction device (2) are located the rear side of ear when wearing, the body of rod is hung and is leaned on in the upper portion of ear, the external auditory canal of ear is put into in to hangers fixed part (31) stopper.

11. An improved bone conduction headset according to claim 10, wherein: the middle part of the hanger fixing part (31) is provided with an ear hanging hole (311) which penetrates through the hanger fixing part (31); the ear hanging hole (311) is communicated with air, or an earplug (45) is tightly inserted into the ear hanging hole (311), or a traditional earphone (43) which is electrically connected with the earphone body (1) or the bone conduction device (2) is tightly inserted into the ear hanging hole (311).

12. An improved bone conduction headset according to claim 11, wherein: the ear hook (3) is a C-shaped flexible frame body with elasticity, and the ear hook (3) is provided with an opening facing downwards;

the earphone 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, the inner cavity of at least one functional part is provided with a battery or a control circuit, the surface of at least one functional part is provided with a control key (46) 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 (4) penetrate out of 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 body (1) from the middle part of the neck hanging frame (40) and is electrically connected with a control circuit;

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

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

the soft medium membrane (61) and the hard medium sheet (62) are pressed, compounded or bonded into a whole at the mutually adjacent joint or the soft medium membrane (61) and the hard medium sheet (62) are pressed, compounded or bonded into a whole at the mutually overlapped joint surface.