CN105578332A - Bone conductor driven by two coils - Google Patents
Bone conductor driven by two coils Download PDFInfo
- Publication number
- CN105578332A CN105578332A CN201610061360.1A CN201610061360A CN105578332A CN 105578332 A CN105578332 A CN 105578332A CN 201610061360 A CN201610061360 A CN 201610061360A CN 105578332 A CN105578332 A CN 105578332A
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- China
- Prior art keywords
- pole piece
- annulus
- bone conductor
- conductive shell
- magnetic conductive
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention relates to a bone conductor driven by two coils. The bone conductor comprises a magnetic shell provided with a containing space, a lower cover body used for sealing the lower part of the containing space of the magnetic shell, and a suspension system arranged above the magnetic shell, wherein an upper pole piece is arranged on the suspension system; the lower surface of the upper pole piece is connected to a magnet; the lower surface of the magnet is connected to a lower pole piece; the upper pole piece, the magnet and the lower pole piece are suspended in the containing space; a first toroid coil and a second toroid coil are at least arranged in the magnetic shell; the upper pole piece, the magnet and the lower pole piece are encircled by the first toroid coil and the second toroid coil; the winding directions of the first toroid coil and the second toroid coil are opposite and electrodes of the two coils are connected in the same direction in parallel; and the upper pole piece is provided with a contact extending to the magnetic shell. The bone conductor has large driving force and is suitable for medium-and-long distance and is capable of guaranteeing call privacy.
Description
Technical field
The present invention relates to the bone conductor that a kind of twin coil drives.
Background technology
Sound is by skull, and jawbone also can pass to auditory nerve, causes the sense of hearing, and this conduction pattern sound in science is called osteoacusis, and some people losing the sense of hearing can utilize osteoacusis to carry out listening.Existing bone conduction device is based on moving-coil technology, and feature is that frequency is wide, and shortcoming is that actuating force is little, is usually used in transmitting sound around ear or near skull.But due to the fundamental characteristics of people's body mechanism, when using bone conduction device away from head, loss is very large, and audio communication number is difficult to long distance and transmits in human body, brings awkward problem.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of actuating force large, adapt to the bone conductor of the twin coil driving that middle and long distance uses
Realize technical scheme of the present invention as follows:
The bone conductor that twin coil drives, comprise the magnetic conductive shell with accommodation space, also comprise the lower cover to carrying out capping below magnetic conductive shell accommodation space, and the suspension be assemblied in above magnetic conductive shell, suspension is provided with superior pole piece, the lower surface of superior pole piece is connected with magnet, the lower surface of magnet is connected with inferior pole piece, described superior pole piece, magnet, inferior pole piece is that hanging like is in accommodation space, the first annulus is at least provided with in magnetic conductive shell, second annulus, described first annulus and the second annulus are by superior pole piece, magnet, inferior pole piece is centered around wherein, first annulus, second annulus direction of winding is contrary and the electrode of two coils is in parallel in the same way, the contact reaching magnetic conductive shell is provided with at superior pole piece.
Have employed technique scheme, use and at least comprise the first annulus, the second annulus formation voice coil loudspeaker voice coil, and the first annulus, the second annulus direction of winding are contrary and the electrode of two coils is in parallel in the same way, be equivalent to moving-coil technology of the prior art, structure one of the present invention is the increase in actuating force, and two is the structures simplifying bone conductor, and three is the volumes that can reduce magnet, and the magnetic of magnet can be made to maximize the use, four is the volumes that can reduce bone conductor; After connecting the signal of telecommunication to the present invention, the voice coil loudspeaker voice coil of energising makes two groups of coils and magnet produce electromagnetic induction, voice coil loudspeaker voice coil cutting magnetic line, because voice coil loudspeaker voice coil is fixed in magnetic conductive shell, magnet movement, thus drive upper and lower pole piece and suspension to vibrate in the lump, and contact and human contact, the actuating force that such vibration produces can drive bone to vibrate, and the sound that vibration produces is received by people's ear drum membrane or phonophore again, finally completes the process of audition.Reasonable in design of the present invention and there is comparatively large driving force, the volume of bone conductor can be reduced, effective frequency range of the present invention is 100-4KHz, device is placed in human wrist or the back of the hand place, transmitted by the arm of people: forefinger or middle finger tip artitificial ear receive SPL >=85dB, to reach the instructions for use of middle and long distance.
Further, described first annulus, the second annulus are in magnetic gap.Namely in magnet vibration processes, the first annulus, the second annulus are in produced magnetic gap all the time, can not go out magnetic gap outside, thus ensure that magnet magnetic property is able to maximized utilization, and also improve the actuating force of whole bone conductor.
Further, in order to save space and make two annuluses realize optimizing cooperation, described first annulus, the second annulus docile are at the accommodation space inwall of magnetic conductive shell, and the first annulus, the second annulus are that upper-lower position superposition is arranged.
Further, in order to reduce leakage sound, described suspension comprises the annular connecting portion be connected with magnetic conductive shell, the annular carrier be connected with superior pole piece, and annular connecting portion is connected with annular carrier in several links integrally, several links are arranged between annular connecting portion and annular carrier uniformly.
Further, described link comprise be connected with annular connecting portion outer link, to be connected with annular carrier in link, described outer link is connected in one by middle linkage section with between interior link.
Further, in order to ensure magnet Oscillation Amplitude and frequency, described suspension is connected by a balancing weight with between superior pole piece.
Further, in order to avoid foreign matter enters in this bone conductor, also comprise and being arranged in suspension for carrying out the annular Air Filter of capping to the gap between suspension and superior pole piece.
Further, in order to prevent magnetic from revealing and spreading the heat in magnetic conductive shell, being provided with magnetic bowl between described lower cover and magnetic conductive shell, magnetic bowl offers several louvres.
Further, in order to can make vibrational energy smooth and easy, steadily effectively transmit, described contact designs for round end, and the round end of contact is outside towards magnetic conductive shell, and described contact is in the medium position of superior pole piece.
Further, in order to form protection to bone conductor, rubbery outer cover is coated with in the outside of bone conductor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic perspective view of cross-section structure of the present invention.
Fig. 3 is the floor map of cross-section structure of the present invention.
Fig. 4 is the structural representation of suspension in the present invention.
Fig. 5 is the test sectional drawing of unicoil transmitter Comsol sunykatuib analysis.
Fig. 6 is the test sectional drawing of twin coil transmitter Comsol sunykatuib analysis.
Fig. 7 is the using method one of bone conductor of the present invention.
Fig. 8 is the using method two of bone conductor of the present invention.
Fig. 9 is test curve figure of the present invention.
In accompanying drawing, 1 is magnetic conductive shell, and 2 is lower cover, and 3 is suspension, 4 is superior pole piece, and 5 is magnet, and 6 is inferior pole piece, and 7 is the first annulus, 8 is the second annulus, and 9 is annular space, and 10 is contact, and 11 is annular connecting portion, 12 is annular carrier, and 13 is link, and 14 is gap, and 15 is outer link, 16 is interior link, and 17 is middle linkage section, and 18 is annular Air Filter, 19 is magnetic bowl, and 20 is louvre, and 21 is platform.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of protection of the invention.
As Fig. 1-4, the bone conductor that twin coil drives, comprise the magnetic conductive shell 1 with accommodation space, magnetic conductive shell is the housing that employing permeability magnetic material is made, also comprise the lower cover 2 to carrying out capping below magnetic conductive shell accommodation space, and the suspension 3 be assemblied in above magnetic conductive shell, suspension is provided with superior pole piece 4, the lower surface of superior pole piece is connected with magnet 5, here the preferred magnet steel of magnet uses, the lower surface of magnet is connected with inferior pole piece 6, the size of superior pole piece and inferior pole piece and the size of magnet, shape adapts, the mode that superior pole piece and inferior pole piece can be bonded by glue is bonded in the upper and lower surface of magnet, to form entirety, superior pole piece, magnet, inferior pole piece is that hanging like is in accommodation space, the first annulus 7 is at least provided with in magnetic conductive shell, second annulus 8, here the first annulus 7, second annulus 8 forms voice coil loudspeaker voice coil, at annulus 7, annular space 9 is formed between second annulus 8 inwall and magnet outer surface, first annulus and the second annulus are by superior pole piece, magnet, inferior pole piece is centered around wherein, first annulus, second annulus direction of winding is contrary and the electrode of two coils is in parallel in the same way, the contact 10 reaching magnetic conductive shell is provided with at superior pole piece.Contact designs for round end, and the round end of contact is outside towards magnetic conductive shell, and contact is in the medium position of superior pole piece, can be passed by vibration information accurately like this.
By controlling the height of the magnetic circuit part be made up of superior pole piece, magnet, inferior pole piece, guarantee in magnetic circuit part motion process, the first annulus, the second annulus are in magnetic gap, to reach the object that magnetic energy is fully utilized.
In concrete enforcement, first annulus, second annulus docile is at the accommodation space inwall of magnetic conductive shell, first annulus, second annulus is that upper-lower position superposition is arranged, here two coils can be bonded on magnetic conductive shell inwall by glue, here the voice coil loudspeaker voice coil that two coils are formed is fixed in magnetic conductive shell, motion parts can certainly be arranged to as required, first annulus is the same with the wire gauge that the second loop coil adopts, and the internal coil diameter formed, external diameter and be highly unanimously the best, increasing annulus needs in addition and keeping consistency above.
Wherein, suspension comprises the annular connecting portion 11 be connected with magnetic conductive shell oral area, the annular carrier 12 be connected with superior pole piece, and annular connecting portion is connected in several links 13 integrally with annular carrier, several links are arranged between annular connecting portion and annular carrier uniformly, and keep gap 14 between adjacent link, and link and annular connecting portion, annular carrier also retention gap; Link comprise be connected with annular connecting portion outer link 15, to be connected with annular carrier in link 16, is connected in integrally by middle linkage section 17 between outer link with interior link.Middle linkage section is segmental arc, middle linkage section in several links is on same circle, and preferably keep the same center of circle with annular carrier or/and annular connecting portion, such structure can ensure the privacy conversed, leakage sound is reduced to below 35dB/30cm, and this just can guarantee that dialog context does not allow the personnel of surrounding hear, simultaneously, the suspension of this spline structure can effectively control vibration amplitude and frequency when the present invention works, and can not produce sound.
In addition, bone conductor also comprises and being arranged in suspension for carrying out the annular Air Filter 18 of capping to the gap between suspension and superior pole piece.Be provided with magnetic bowl 19 between lower cover and magnetic conductive shell, magnetic bowl offers several louvres 20.Rubbery outer cover is coated with in the outside of bone conductor.Suspension is extended a platform 21, for making the both positive and negative polarity contact be connected with power supply on this platform, suspension being integrated with circuit and being connected with coil and powering.
Innovative point of the present invention is to break through conventional design, the conversion efficiency of bone conductor is maximized, is also conducive to wearable device and breaks through existing design bottleneck, make it apply freer.Middle long astragalus transmitter revolutionizes Intelligent worn device and can not answer secret phone history, and the transmission performance of middle long distance and the occupation mode of answering of uniqueness will be the much progresses that intelligence dresses in history.The invention solves the problem of wearable device speech communication, by human body transmission's audio signal, signal short-distance and medium-distance can be transmitted, make the design of wearable device freer, more press close to practicality.And by the design of special suspended structure, solve the problem that in wearable device, sound is revealed, ensure that the privacy of call very well.
Middle long astragalus transmitter is placed in human wrist or the back of the hand place, by artificial arm test amplitude, sensor test amplitude, as following table:
| Frequency (Hz) | Amplitude (mV) |
| 500Hz | 2000 |
| 800Hz | 1500 |
| 1000Hz | 1200 |
| 1200Hz | 1200 |
| 1500Hz | 1200 |
| 2000Hz | 1100 |
| 2500Hz | 1100 |
| 3000Hz | 1200 |
| 3500Hz | 1100 |
| 4000Hz | 1000 |
The design of twin coil makes magnetic field energy be fully utilized, and by simulation, finds that the BL value of twin coil is far longer than unicoil.Following side is by the test sectional drawing of Comsol sunykatuib analysis, and in figure, the white portion of rounded portions is BL value district, below Fig. 5 be monocoil resolution chart, Fig. 6 is the resolution chart of twin coil.
The using method of bone conductor of the present invention:
Middle long astragalus transmitter is placed in wearable device wrist-watch, can install and show to carry on the back and watchband inside, contact human body the back of the hand or wrist.
Using method one: see Fig. 7, palm is clenched fist, and forefinger or middle finger stretch, and forefinger or middle finger pin people's ear external ear tragus place, and sound is by hand bone, and phalanges transfers to external ear tragus place, transfers to phonophore and finally make people hear the sound that driver produces by skull.
Using method two: see Fig. 8, palm is clenched fist, forefinger or middle finger stretch, forefinger or middle finger stretch in people's ear external auditory meatus, sound is by hand bone, phalanges transfers in external auditory meatus, then transfers to eardrum from external auditory meatus, and transfers to phonophore by skull and finally make people hear the sound that driver produces.
Method of testing of the present invention: 1. method of testing can be multiple, has manufactured a bionic hand here, osteoacusis driver has been arranged on wrist, fix with black bandage, ring finger portion silica gel sleeve pipe links (silica gel casing diameter 22mm, thick 1mm, length 25mm) with transducer.
See Fig. 9, from test curve, frequency range can accomplish 20Hz-4KHz preferably, covers voice segments signal.
Bone conductor is arranged in true man's wrist and tests, leak sound at about 30dB, close to the environmental noise in noise reduction room in the test of noise elimination ell.
Claims (10)
1. the bone conductor of twin coil driving, comprise the magnetic conductive shell with accommodation space, it is characterized in that, also comprise the lower cover to carrying out capping below magnetic conductive shell accommodation space, and the suspension be assemblied in above magnetic conductive shell, suspension is provided with superior pole piece, the lower surface of superior pole piece is connected with magnet, the lower surface of magnet is connected with inferior pole piece, described superior pole piece, magnet, inferior pole piece is that hanging like is in accommodation space, the first annulus is at least provided with in magnetic conductive shell, second annulus, described first annulus and the second annulus are by superior pole piece, magnet, inferior pole piece is centered around wherein, first annulus, second annulus direction of winding is contrary and the electrode of two coils is in parallel in the same way, the contact reaching magnetic conductive shell is provided with at superior pole piece.
2. the bone conductor of twin coil driving according to claim 1, it is characterized in that, described first annulus, the second annulus are in magnetic gap.
3. the bone conductor of twin coil driving according to claim 1, is characterized in that, described first annulus, the second annulus docile are at the accommodation space inwall of magnetic conductive shell, and the first annulus, the second annulus are that upper-lower position superposition is arranged.
4. the bone conductor of twin coil driving according to claim 1, it is characterized in that, described suspension comprises the annular connecting portion be connected with magnetic conductive shell, the annular carrier be connected with superior pole piece, and annular connecting portion is connected with annular carrier in several links integrally, several links are arranged between annular connecting portion and annular carrier uniformly.
5. the bone conductor of twin coil driving according to claim 4, it is characterized in that, described link comprise be connected with annular connecting portion outer link, to be connected with annular carrier in link, described outer link is connected in one by middle linkage section with between interior link.
6. the bone conductor of twin coil driving according to claim 1, it is characterized in that, described suspension is connected by a balancing weight with between superior pole piece.
7. the bone conductor of twin coil driving according to claim 1, is characterized in that, also comprise and being arranged in suspension for carrying out the annular Air Filter of capping to the gap between suspension and superior pole piece.
8. the bone conductor of twin coil driving according to claim 1, is characterized in that, be provided with magnetic bowl between described lower cover and magnetic conductive shell, magnetic bowl offers several louvres.
9. the bone conductor that drives of twin coil according to claim 1, is characterized in that, described contact design for round end, and the round end of contact is towards magnetic conductive shell outside, and described contact is in the medium position of superior pole piece.
10. the bone conductor that the twin coil according to any one of claim 1-9 drives, is characterized in that, be coated with rubbery outer cover in the outside of bone conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061360.1A CN105578332A (en) | 2016-01-28 | 2016-01-28 | Bone conductor driven by two coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061360.1A CN105578332A (en) | 2016-01-28 | 2016-01-28 | Bone conductor driven by two coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105578332A true CN105578332A (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610061360.1A Pending CN105578332A (en) | 2016-01-28 | 2016-01-28 | Bone conductor driven by two coils |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105578332A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017128251A1 (en) * | 2016-01-28 | 2017-08-03 | 汉得利（常州）电子股份有限公司 | Bone conductor driven by double coils |
| CN107155159A (en) * | 2017-06-29 | 2017-09-12 | 余旭明 | A kind of osteoacusis loudspeaker and earphone |
| CN115278476A (en) * | 2022-05-10 | 2022-11-01 | 荣耀终端有限公司 | Audio transducer and wearable audio output device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201015225Y (en) * | 2007-02-15 | 2008-01-30 | 甘肃新天电子科技有限公司 | Audio vibrator device |
| JP2008092460A (en) * | 2006-10-04 | 2008-04-17 | Namiki Precision Jewel Co Ltd | Bone conduction speaker |
| CN104320748A (en) * | 2008-12-10 | 2015-01-28 | 维布兰特美迪医疗电子听觉技术有限公司 | Skull vibrational unit |
| CN204539466U (en) * | 2015-04-29 | 2015-08-05 | 陈广标 | A kind of full range osteoacusis loudspeaker |
| CN104837086A (en) * | 2015-02-09 | 2015-08-12 | 胡锦翔 | Bone conduction earphone speaker |
| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN104994457A (en) * | 2015-07-08 | 2015-10-21 | 汉得利（常州）电子股份有限公司 | Medium-distance bone conduction driver |
-
2016
- 2016-01-28 CN CN201610061360.1A patent/CN105578332A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008092460A (en) * | 2006-10-04 | 2008-04-17 | Namiki Precision Jewel Co Ltd | Bone conduction speaker |
| CN201015225Y (en) * | 2007-02-15 | 2008-01-30 | 甘肃新天电子科技有限公司 | Audio vibrator device |
| CN104320748A (en) * | 2008-12-10 | 2015-01-28 | 维布兰特美迪医疗电子听觉技术有限公司 | Skull vibrational unit |
| CN104837086A (en) * | 2015-02-09 | 2015-08-12 | 胡锦翔 | Bone conduction earphone speaker |
| CN204539466U (en) * | 2015-04-29 | 2015-08-05 | 陈广标 | A kind of full range osteoacusis loudspeaker |
| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN104994457A (en) * | 2015-07-08 | 2015-10-21 | 汉得利（常州）电子股份有限公司 | Medium-distance bone conduction driver |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017128251A1 (en) * | 2016-01-28 | 2017-08-03 | 汉得利（常州）电子股份有限公司 | Bone conductor driven by double coils |
| CN107155159A (en) * | 2017-06-29 | 2017-09-12 | 余旭明 | A kind of osteoacusis loudspeaker and earphone |
| CN115278476A (en) * | 2022-05-10 | 2022-11-01 | 荣耀终端有限公司 | Audio transducer and wearable audio output device |
| CN115278476B (en) * | 2022-05-10 | 2023-07-25 | 荣耀终端有限公司 | Audio transducer and wearable audio output device |
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Application publication date: 20160511 |
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