CN104394492A - Single-film bone conduction earphone with double functions and double sound effects - Google Patents
Single-film bone conduction earphone with double functions and double sound effects Download PDFInfo
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- CN104394492A CN104394492A CN201410766678.0A CN201410766678A CN104394492A CN 104394492 A CN104394492 A CN 104394492A CN 201410766678 A CN201410766678 A CN 201410766678A CN 104394492 A CN104394492 A CN 104394492A
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Abstract
The invention discloses a single-film bone conduction earphone with double functions and double sound effects. A cover without holes is mounted at the opening of an accommodating cavity inside an earphone shell in an embedded mode; an audio cable is mounted and arranged on the opposite side, at the position of the opening of the accommodating cavity, of the earphone shell; a vibration assembly and an audio signal input assembly are mounted in the accommodating cavity in the embedded mode; the audio signal input assembly comprises hollow voice coil windings and an audio signal connecting plate; the vibration assembly comprises a cylinder-shaped concentrating flux plate, annular permanent magnets and a cylinder-shaped permanent magnet; heteropolar surfaces of the cylinder-shaped permanent magnet and the annular permanent magnets are tightly adsorbed to the cylinder-shaped concentrating flux plate; the cylinder-shaped concentrating flux plate is coaxially and seamlessly riveted to a circular vibration sound film on the opposite side of the cylinder-shaped permanent magnet. Through the structural design, the earphone can obtain double sound effects by taking bone conduction as the principal thing and taking air conduction as the auxiliary thing, and has double functions that the earphone is suitable for both hearing normal people and hearing handicapped; the earphone is novel in design and simple in structure, and can effectively alleviate burden and direct stimulation for eardrums to relieve early ear hearing loss.
Description
Technical field
The present invention relates to audio output apparatus technical field, particularly relate to a kind of monofilm double-tone and imitate difunctional bone conduction earphone.
Background technology
As everyone knows, mankind's audition has two kinds of approach, is specially: one, air transmitted (abbreviation conductance), and utilize the principle that air vibration is propagated exactly, sound wave passes to ear-drum, then passes to inner auricularis (namely listening by ear) by ear-drum; Two, osteoacusis (abbreviation bone conduction), utilizes the principle as object transfer vibration wave exactly, is passed on the skull of human body by sound wave, be more directly sent to inner auricularis by skull, do not need by ear vibration of membrane.
People listen sound to be delivered to inner hearing organ again by ear-drum induction air transmitted sound wave usually, because ear-drum is more fragile, fine and smooth high-frequency sound is obtained although can respond to, but under being in the environment of high-decibel noise for a long time or listen conductance earphone all can easily cause Hearing even to damage for a long time, so listen to barrier, person be in the majority with conductance hearing loss person.
According to above-mentioned two kinds of audition modes, existing earphone also can be divided into conductance earphone and bone conduction earphone; For above-mentioned conductance earphone and bone conduction earphone, in the use procedure of reality, conductance earphone sound gently lack telepresenc and louder volume time easily ear-piercing, the strong but heavy too stuffy shortage high-frequency effect of sound of bone conduction earphone supper bass telepresenc.For overcoming the deficiency of traditional conductance earphone and bone conduction earphone, hybrid earphone together with conductance being incorporated into bone conduction arises at the historic moment, for hybrid earphone, it can be learnt from other's strong points to offset one's weaknesses, and tonequality is soft not ear-piercing and effectively can alleviate the stimulation of ear-drum and burden and alleviate the too early decline of hearing.
But for existing hybrid earphone, ubiquity assembly structure is complicated, cavity body structure large and separately need join iversion controller, and the excessive possibility still having damage ear-drum of conductance volume.
Summary of the invention
The object of the invention is to provide a kind of monofilm double-tone to imitate difunctional bone conduction earphone for the deficiencies in the prior art, this monofilm double-tone is imitated difunctional bone conduction earphone can to obtain bone conduction is main conductance and is auxiliary dual audio and the dual-use function that can be suitable for the normal person of ear hearing, ear person hard of hearing, modern design, structure are simple, can either stimulate with direct the burden of ear-drum by effectively alleviating the control of conductance volume, fail too early to alleviate ear-drum, the deep high resilience of bass and the not ear-piercing better acoustical quality of high pitch can be obtained again.
For achieving the above object, the present invention is achieved through the following technical solutions.
A kind of monofilm double-tone imitates difunctional bone conduction earphone, include earphone case, the inside of earphone case forms the containing cavity towards pleasant side or skull side opening, earphone case is equiped with in the opposition side of containing cavity aperture position the tone frequency channel wire stretched in containing cavity, earphone case is embedded with the edge part close contact of containing cavity opening part in the opening part of containing cavity and seals the atresia lid of containing cavity opening, is embedded with the vibration component inside atresia lid and the audio signal input module between vibration component and tone frequency channel wire in containing cavity;
Audio signal input module includes hollow voice coil loudspeaker voice coil winding and audio signal connecting plate, hollow voice coil loudspeaker voice coil winding, tone frequency channel wire are electrically connected with audio signal connecting plate respectively, the positive pole of tone frequency channel wire is electrically connected with the positive pole of hollow voice coil loudspeaker voice coil winding by audio signal connecting plate, and the negative pole of tone frequency channel wire is connected with the negative electricity of hollow voice coil loudspeaker voice coil winding by audio signal connecting plate;
Vibration component includes the cylindrical magnetic conductive board of cylindrical shape, the edge part of cylindrical magnetic conductive board and the inwall interval of containing cavity are arranged, cylindrical magnetic conductive board is equiped with in circular annular permanent magnnet and the cylindrical permanent magnet of cylindrical shape in deviating from atresia lid side, the external diameter value of annular permanent magnnet is less than or equal to the maximum outside diameter value of cylindrical magnetic conductive board, the external diameter value of cylindrical permanent magnet is little compared with the centre bore inner diameter values of annular permanent magnnet, cylindrical permanent magnet is flush-mounted in the centre bore of annular permanent magnnet, cylindrical permanent magnet, annular permanent magnnet and cylindrical magnetic conductive board coaxially arranged, cylindrical permanent magnet and annular permanent magnnet touch with the intimate surface of cylindrical magnetic conductive board respectively, the polarity on the cylindrical permanent magnet surface contacted with cylindrical magnetic conductive board, the polarity on the annular permanent magnnet surface contacted with cylindrical magnetic conductive board is different, cylindrical magnetic conductive board is in cylindrical permanent magnet, the coaxial seamless riveted joint in opposition side of annular permanent magnnet has circular vibration sound film, the edge part of circular vibration sound film is installed between the edge part of atresia lid and the edge part of containing cavity opening part.
Wherein, described audio signal input module also includes voice coil loudspeaker voice coil winding support, described hollow voice coil loudspeaker voice coil winding is installed in voice coil loudspeaker voice coil winding support and is positioned at vibration component side, described audio signal connecting plate is installed in voice coil loudspeaker voice coil winding support and is positioned at hollow voice coil loudspeaker voice coil winding opposition side, the diameter value of voice coil loudspeaker voice coil winding support be greater than the external diameter value of hollow voice coil loudspeaker voice coil winding and voice coil loudspeaker voice coil winding support and hollow voice coil loudspeaker voice coil winding coaxially arranged, hollow voice coil loudspeaker voice coil winding is installed around by enamel covered wire and forms, and the resistance value of hollow voice coil loudspeaker voice coil winding is 4-200 Europe.
Wherein, relief width angle value between described cylindrical permanent magnet and described annular permanent magnnet is large compared with the wall thickness value of described hollow voice coil loudspeaker voice coil winding, hollow voice coil loudspeaker voice coil winding and cylindrical permanent magnet coaxially arranged, just align with the wall thickness central of hollow voice coil loudspeaker voice coil winding in the center in the gap between cylindrical permanent magnet with annular permanent magnnet.
Wherein, the distance between described hollow voice coil loudspeaker voice coil winding to described cylindrical magnetic conductive board is greater than the peak swing value of cylindrical magnetic conductive board.
Wherein, described circular vibration sound film is do not inhale the stainless steel vibration sound film of magnetic or titanium alloy vibration sound film or aluminium alloy vibration sound film or beryllium copper vibration sound film.
Wherein, described cylindrical permanent magnet is neodymium-iron-boron permanent magnet, and described annular permanent magnnet is neodymium-iron-boron permanent magnet.
Wherein, described cylindrical magnetic conductive board is fe-Ni soft magnetic alloy magnetic conductive board.
Wherein, described earphone case is Al-alloy casing or Stainless Steel Shell or engineering plastics housing, and described atresia lid is aluminium alloy lid or stainless steel cover or engineering plastics lid, and the one-tenth-value thickness 1/10 of earphone case and atresia lid is 0.3mm-1.5mm.
Wherein, described atresia lid is adhered to the containing cavity opening part of described earphone case by glue.
Wherein, the outer surface of described earphone case offers the splicing groove hanging matching ends with ear-hang or head.
Beneficial effect of the present invention is: a kind of monofilm double-tone of the present invention imitates difunctional bone conduction earphone, the containing cavity opening part setting-in atresia lid of its earphone case inside, earphone case is in containing cavity aperture position opposition side installing tone frequency channel wire, setting-in vibration component in containing cavity, audio signal input module, audio signal input module comprises hollow voice coil loudspeaker voice coil winding, audio signal connecting plate, hollow voice coil loudspeaker voice coil winding, tone frequency channel wire is electrically connected with audio signal connecting plate respectively, vibration component comprises cylindrical magnetic conductive board, annular permanent magnnet, cylindrical permanent magnet, cylindrical permanent magnet is flush-mounted in the centre bore of annular permanent magnnet, cylindrical permanent magnet, annular permanent magnnet, cylindrical magnetic conductive board is coaxially arranged, cylindrical permanent magnet and the cylindrical magnetic conductive board of annular permanent magnnet dissimilar polarities face close contact, cylindrical magnetic conductive board is coaxial seamless riveted joint circular vibration sound film in cylindrical permanent magnet opposition side, the edge part of circular vibration sound film is installed between the edge part of atresia lid and the edge part of containing cavity opening part.Designed by said structure, the present invention can obtain bone conduction, and to be main conductance be auxiliary dual audio and the dual-use function that can be suitable for the normal person of ear hearing, ear person hard of hearing, modern design, structure are simple, can either stimulate with direct the burden of ear-drum by effectively alleviating the control of conductance volume, fail too early to alleviate ear-drum, the deep high resilience of bass and the not ear-piercing better acoustical quality of high pitch can be obtained again.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the present invention below, but the embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is structural representation of the present invention.
Include in FIG:
1---earphone case 11---containing cavity
2---tone frequency channel wire 3---atresia lid
4---vibration component 41---cylindrical magnetic conductive board
42---annular permanent magnnet 43---cylindrical permanent magnet
44---circular vibration sound film 5---audio signal input module
51---voice coil loudspeaker voice coil winding support 52---hollow voice coil loudspeaker voice coil winding
53---audio signal connecting plate 6---splicing groove.
Embodiment
Below in conjunction with concrete execution mode, the present invention will be described.
As shown in Figure 1, a kind of monofilm double-tone imitates difunctional bone conduction earphone, include earphone case 1, the inside of earphone case 1 forms the containing cavity 11 towards pleasant side or skull side opening, earphone case 1 is equiped with in the opposition side of containing cavity 11 aperture position the tone frequency channel wire 2 stretched in containing cavity 11, earphone case 1 is embedded with the edge part close contact of containing cavity 11 opening part in the opening part of containing cavity 11 and seals the atresia lid 3 of containing cavity 11 opening, the vibration component 4 inside atresia lid 3 and the audio signal input module 5 between vibration component 4 and tone frequency channel wire 2 is embedded with in containing cavity 11.
Further, audio signal input module 5 includes hollow voice coil loudspeaker voice coil winding 52 and audio signal connecting plate 53, hollow voice coil loudspeaker voice coil winding 52, tone frequency channel wire 2 are electrically connected with audio signal connecting plate 53 respectively, the positive pole of tone frequency channel wire 2 is electrically connected with the positive pole of hollow voice coil loudspeaker voice coil winding 52 by audio signal connecting plate 53, and the negative pole of tone frequency channel wire 2 is connected with the negative electricity of hollow voice coil loudspeaker voice coil winding 52 by audio signal connecting plate 53.
Further, vibration component 4 includes the cylindrical magnetic conductive board 41 of cylindrical shape, the edge part of cylindrical magnetic conductive board 41 and the inwall interval of containing cavity 11 are arranged, cylindrical magnetic conductive board 41 is equiped with the cylindrical permanent magnet 43 of annular permanent magnnet 42 in circular and cylindrical shape in deviating from atresia lid 3 side, the external diameter value of annular permanent magnnet 42 is less than or equal to the maximum outside diameter value of cylindrical magnetic conductive board 41, the external diameter value of cylindrical permanent magnet 43 is little compared with the centre bore inner diameter values of annular permanent magnnet 42, cylindrical permanent magnet 43 is flush-mounted in the centre bore of annular permanent magnnet 42, cylindrical permanent magnet 43, annular permanent magnnet 42 and cylindrical magnetic conductive board 41 coaxially arranged, cylindrical permanent magnet 43 and annular permanent magnnet 42 touch with the intimate surface of cylindrical magnetic conductive board 41 respectively, the polarity on cylindrical permanent magnet 43 surface contacted with cylindrical magnetic conductive board 41, the polarity on annular permanent magnnet 42 surface contacted with cylindrical magnetic conductive board 41 is different, cylindrical magnetic conductive board 41 is in cylindrical permanent magnet 43, the coaxial seamless riveted joint in opposition side of annular permanent magnnet 42 has circular vibration sound film 44, the edge part of circular vibration sound film 44 is installed between the edge part of atresia lid 3 and the edge part of containing cavity 11 opening part.
In the course of work of the present invention, audio signal is successively by tone frequency channel wire 2, audio signal connecting plate 53 and input to hollow voice coil loudspeaker voice coil winding 52, the electromagnetic field that hollow voice coil loudspeaker voice coil winding 52 produces changes along with the change of audio signal, the electromagnetic field of change interacts with the magnetic circuit assembly be made up of cylindrical permanent magnet 43, annular permanent magnnet 42, cylindrical magnetic conductive board 41, and drives circular vibration sound film 44 to do the vibration of different frequency amplitude by magnetic circuit assembly; Vibration wave is delivered to close-connected earphone case 1 and atresia lid 3 by the circular vibration sound film 44 of vibration, audio oscillator signal is directly transferred to brain hearing organ by the position that earphone case 1 and atresia lid 3 touch otica or skull, and user obtains bone conduction audio.In addition, the slight vibration ripple that earphone case 1 and atresia lid 3 produce drives surrounding air to vibrate simultaneously, namely user obtains the audio of conductance by ear-drum brain hearing organ, the hearing organ of user like this obtains the dual audio of bone conduction and conductance simultaneously, the deep and forceful advantage being rich in telepresenc of existing bone conduction bass, there is again the brisk bright audio advantage of conductance, both simple osophone tonequality had been overcome heavy stuffy and simple conductance earphone high pitch is easily ear-piercing and damage the shortcoming of ear-drum, sound the deep high resilience of bass, high pitch is relatively soft and not ear-piercing, alleviate on the one hand the stimulation of ear-drum and burden and be conducive to alleviating fatigue and the damage of ear-drum, fail too early to prevent hearing, another aspect weakens hearing again and forfeiter provides another approach obtaining sound, the normal person of hearing and person hard of hearing can be applicable to simultaneously.
Comprehensive above-mentioned situation is known, designed by said structure, the present invention can obtain bone conduction, and to be main conductance be auxiliary dual audio and the dual-use function that can be suitable for the normal person of ear hearing, ear person hard of hearing, modern design, structure are simple, effectively can either alleviate the burden to ear-drum and directly stimulation, can effectively alleviate ear-drum again and fail too early.
As preferred embodiment, as shown in Figure 1, audio signal input module 5 also includes voice coil loudspeaker voice coil winding support 51, hollow voice coil loudspeaker voice coil winding 52 is installed in voice coil loudspeaker voice coil winding support 51 and is positioned at vibration component 4 side, audio signal connecting plate 53 is installed in voice coil loudspeaker voice coil winding support 51 and is positioned at hollow voice coil loudspeaker voice coil winding 52 opposition side, and the diameter value of voice coil loudspeaker voice coil winding support 51 is greater than the external diameter value of hollow voice coil loudspeaker voice coil winding 52 and voice coil loudspeaker voice coil winding support 51 is coaxially arranged with hollow voice coil loudspeaker voice coil winding 52.Need to explain further, voice coil loudspeaker voice coil winding support 51 is for the hollow voice coil loudspeaker voice coil winding 52 of fixed support and audio signal connecting plate 53.
As preferred embodiment, as shown in Figure 1, relief width angle value between cylindrical permanent magnet 43 and annular permanent magnnet 42 is large compared with the wall thickness value of hollow voice coil loudspeaker voice coil winding 52, hollow voice coil loudspeaker voice coil winding 52 is coaxially arranged with cylindrical permanent magnet 43, just aligns with the wall thickness central of hollow voice coil loudspeaker voice coil winding 52 in the center in the gap between cylindrical permanent magnet 43 with annular permanent magnnet 42; In addition, the distance between hollow voice coil loudspeaker voice coil winding 52 to cylindrical magnetic conductive board 41 is greater than the peak swing value of vibration component 4.Designed by said structure, when the present invention can avoid vibrating effectively, cylindrical permanent magnet 43, annular permanent magnnet 42 and cylindrical magnetic conductive board 41 produces with hollow voice coil loudspeaker voice coil winding 52 and disorderly touches.
Need to explain further, circular vibration sound film 44 of the present invention can adopt the stainless steel material or titanium alloy material or aluminium alloy of not inhaling magnetic or the beryllium copper material intensity metal material lighter compared with high-ductility elasticity good quality or other materials to be prepared from, and namely circular vibration sound film 44 is do not inhale the vibration sound film that the stainless steel vibration sound film of magnetic or titanium alloy vibration sound film or aluminium alloy vibration sound film or beryllium copper vibration sound film or other materials be prepared from.In addition, according to the different requirements to tonequality, circular vibration sound film 44 of the present invention can be designed to planar structure, also can be designed to stereochemical structure.
The NdFeB material that cylindrical permanent magnet 43 of the present invention, annular permanent magnnet 42 can adopt performance high is respectively prepared from, and namely cylindrical permanent magnet 43 is neodymium-iron-boron permanent magnet, and annular permanent magnnet 42 is neodymium-iron-boron permanent magnet.In addition, cylindrical magnetic conductive board 41 of the present invention can adopt the high permeability material of fe-Ni soft magnetic alloy class to be prepared from, and namely cylindrical magnetic conductive board 41 is fe-Ni soft magnetic alloy magnetic conductive board.
Need point out further, earphone case 1 of the present invention and atresia lid 3 can adopt the higher aluminum alloy materials of light specific gravity intensity or stainless steel material or engineering plastics to be prepared from, namely earphone case 1 is Al-alloy casing or Stainless Steel Shell or engineering plastics housing, and atresia lid 3 is aluminium alloy lid or stainless steel cover or engineering plastics lid; In addition, on the basis of proof strength, the one-tenth-value thickness 1/10 of earphone case 1 and atresia lid 3 can be designed to 0.3mm-1.5mm.
For the situation that issuable noise and atresia lid 3 when preventing work get loose from earphone case 1, earphone case 1 and atresia lid 3 can adopt the bonding mode of glue to realize assembly connection, atresia lid 3 is adhered to containing cavity 11 opening part of earphone case 1 by glue, and namely the present invention fastens by machinery the opening part edge part close contact connection that the mode bonding with glue realizes atresia lid 3, circular vibration sound film 44 and containing cavity 11; On the basis that glue is bonding, machinery mode of tightening up also can be adopted to stablize connection between earphone case 1 and atresia lid 3 further, such as, be spirally connected, snapping etc.
Hollow voice coil loudspeaker voice coil winding 52 of the present invention is installed around by enamel covered wire and forms, and the resistance value of hollow voice coil loudspeaker voice coil winding 52 is 4-200 Europe, can select the hollow voice coil loudspeaker voice coil winding 52 of different resistance values according to different specifications.
As preferred embodiment, the outer surface of earphone case 1 offers the splicing groove 6 hanging matching ends with ear-hang or head.During use, the present invention can hang by ear-hang or head and be worn on outside two ears of left and right, the equipment such as audio player or hearing aids of connecting is by the transaudient acquisition external sound of skull, the normal person of hearing obtains supplementing of conductance audio by ear-drum simultaneously, contribute to release ears when outdoor exercises person or bicyclist use like this and notice the voice signal of periphery, safe and convenient.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (10)
1. a monofilm double-tone imitates difunctional bone conduction earphone, it is characterized in that: include earphone case (1), the inside of earphone case (1) forms the containing cavity (11) towards pleasant side or skull side opening, earphone case (1) is equiped with the tone frequency channel wire (2) stretched in containing cavity (11) in the opposition side of containing cavity (11) aperture position, earphone case (1) is embedded with the edge part close contact of containing cavity (11) opening part in the opening part of containing cavity (11) and seals the atresia lid (3) of containing cavity (11) opening, the vibration component (4) being positioned at atresia lid (3) inner side and the audio signal input module (5) be positioned between vibration component (4) and tone frequency channel wire (2) is embedded with in containing cavity (11),
Audio signal input module (5) includes hollow voice coil loudspeaker voice coil winding (52) and audio signal connecting plate (53), hollow voice coil loudspeaker voice coil winding (52), tone frequency channel wire (2) are electrically connected with audio signal connecting plate (53) respectively, the positive pole of tone frequency channel wire (2) is electrically connected with the positive pole of hollow voice coil loudspeaker voice coil winding (52) by audio signal connecting plate (53), and the negative pole of tone frequency channel wire (2) is connected with the negative electricity of hollow voice coil loudspeaker voice coil winding (52) by audio signal connecting plate (53);
Vibration component (4) includes the cylindrical magnetic conductive board (41) of cylindrical shape, the edge part of cylindrical magnetic conductive board (41) and the inwall interval of containing cavity (11) are arranged, cylindrical magnetic conductive board (41) is equiped with the cylindrical permanent magnet (43) of annular permanent magnnet (42) in circular and cylindrical shape in deviating from atresia lid (3) side, the external diameter value of annular permanent magnnet (42) is less than or equal to the maximum outside diameter value of cylindrical magnetic conductive board (41), the external diameter value of cylindrical permanent magnet (43) is little compared with the centre bore inner diameter values of annular permanent magnnet (42), cylindrical permanent magnet (43) is flush-mounted in the centre bore of annular permanent magnnet (42), cylindrical permanent magnet (43), annular permanent magnnet (42) and cylindrical magnetic conductive board (41) coaxially arranged, cylindrical permanent magnet (43) and annular permanent magnnet (42) touch with the intimate surface of cylindrical magnetic conductive board (41) respectively, the polarity on cylindrical permanent magnet (43) surface contacted with cylindrical magnetic conductive board (41), the polarity on annular permanent magnnet (42) surface contacted with cylindrical magnetic conductive board (41) is different, cylindrical magnetic conductive board (41) is in cylindrical permanent magnet (43), the coaxial seamless riveted joint in opposition side of annular permanent magnnet (42) has circular vibration sound film (44), the edge part of circular vibration sound film (44) is installed between the edge part of atresia lid (3) and the edge part of containing cavity (11) opening part.
2. a kind of monofilm double-tone according to claim 1 imitates difunctional bone conduction earphone, it is characterized in that: described audio signal input module (5) also includes voice coil loudspeaker voice coil winding support (51), described hollow voice coil loudspeaker voice coil winding (52) is installed in voice coil loudspeaker voice coil winding support (51) and is positioned at vibration component (4) side, described audio signal connecting plate (53) is installed in voice coil loudspeaker voice coil winding support (51) and is positioned at hollow voice coil loudspeaker voice coil winding (52) opposition side, the diameter value of voice coil loudspeaker voice coil winding support (51) is greater than the external diameter value of hollow voice coil loudspeaker voice coil winding (52) and voice coil loudspeaker voice coil winding support (51) is coaxially arranged with hollow voice coil loudspeaker voice coil winding (52), hollow voice coil loudspeaker voice coil winding (52) is installed around by enamel covered wire and forms, the resistance value of hollow voice coil loudspeaker voice coil winding (52) is 4-200 Europe.
3. a kind of monofilm double-tone according to claim 2 imitates difunctional bone conduction earphone, it is characterized in that: the relief width angle value between described cylindrical permanent magnet (43) and described annular permanent magnnet (42) is large compared with the wall thickness value of described hollow voice coil loudspeaker voice coil winding (52), hollow voice coil loudspeaker voice coil winding (52) is coaxially arranged with cylindrical permanent magnet (43), just aligns with the wall thickness central of hollow voice coil loudspeaker voice coil winding (52) in the center in the gap between cylindrical permanent magnet (43) with annular permanent magnnet (42).
4. a kind of monofilm double-tone according to claim 3 imitates difunctional bone conduction earphone, it is characterized in that: the distance between described hollow voice coil loudspeaker voice coil winding (52) to described cylindrical magnetic conductive board (41) is greater than the peak swing value of cylindrical magnetic conductive board (41).
5. a kind of monofilm double-tone according to claim 4 imitates difunctional bone conduction earphone, it is characterized in that: described circular vibration sound film (44) is do not inhale the stainless steel vibration sound film of magnetic or titanium alloy vibration sound film or aluminium alloy vibration sound film or beryllium copper vibration sound film.
6. a kind of monofilm double-tone according to claim 5 imitates difunctional bone conduction earphone, it is characterized in that: described cylindrical permanent magnet (43) is neodymium-iron-boron permanent magnet, and described annular permanent magnnet (42) is neodymium-iron-boron permanent magnet.
7. a kind of monofilm double-tone according to claim 6 imitates difunctional bone conduction earphone, it is characterized in that: described cylindrical magnetic conductive board (41) is fe-Ni soft magnetic alloy magnetic conductive board.
8. a kind of monofilm double-tone according to claim 7 imitates difunctional bone conduction earphone, it is characterized in that: described earphone case (1) is Al-alloy casing or Stainless Steel Shell or engineering plastics housing, described atresia lid (3) is aluminium alloy lid or stainless steel cover or engineering plastics lid, and the one-tenth-value thickness 1/10 of earphone case (1) and atresia lid (3) is 0.3mm-1.5mm.
9. a kind of monofilm double-tone according to claim 8 imitates difunctional bone conduction earphone, it is characterized in that: described atresia lid (3) is adhered to containing cavity (11) opening part of described earphone case (1) by glue.
10. a kind of monofilm double-tone according to claim 9 imitates difunctional bone conduction earphone, it is characterized in that: the outer surface of described earphone case (1) offers the splicing groove (6) hanging matching ends with ear-hang or head.
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| CN201410766678.0A CN104394492B (en) | 2014-12-11 | 2014-12-11 | A kind of monofilm double-tone imitates difunctional bone conduction earphone |
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Cited By (6)
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| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN106419954A (en) * | 2016-09-26 | 2017-02-22 | 珠海爱珂索移动医疗科技有限公司 | Method for vibration restoration of stethoscope |
| CN107801114A (en) * | 2017-02-10 | 2018-03-13 | 深圳市启元数码科技有限公司 | A kind of waterproof bone conduction earphone and its waterproof sealing method |
| CN111954142A (en) * | 2020-08-29 | 2020-11-17 | 深圳市韶音科技有限公司 | Hearing assisting device |
| WO2022041166A1 (en) * | 2020-08-29 | 2022-03-03 | 深圳市韶音科技有限公司 | Hearing aid device |
| US11974091B2 (en) | 2018-06-15 | 2024-04-30 | Shenzhen Shokz Co., Ltd. | Apparatus and methods for bone conduction speaker |
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| CN204408580U (en) * | 2014-12-11 | 2015-06-17 | 东莞声都实业有限公司 | A kind of monofilm double-tone imitates difunctional bone conduction earphone |
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| CN107801114B (en) * | 2017-02-10 | 2023-06-16 | 深圳市启元数码科技有限公司 | Waterproof bone conduction earphone and waterproof sealing method thereof |
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| WO2022041166A1 (en) * | 2020-08-29 | 2022-03-03 | 深圳市韶音科技有限公司 | Hearing aid device |
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