CN105472511A - Dual-positioning type bone conduction loudspeaker device - Google Patents
Dual-positioning type bone conduction loudspeaker device Download PDFInfo
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- CN105472511A CN105472511A CN201510864676.XA CN201510864676A CN105472511A CN 105472511 A CN105472511 A CN 105472511A CN 201510864676 A CN201510864676 A CN 201510864676A CN 105472511 A CN105472511 A CN 105472511A
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- 239000004020 conductor Substances 0.000 claims description 197
- 238000012856 packing Methods 0.000 claims description 34
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- 230000035945 sensitivity Effects 0.000 abstract description 10
- 239000000126 substance Substances 0.000 description 26
- 238000003466 welding Methods 0.000 description 24
- 239000000463 material Substances 0.000 description 16
- 238000009434 installation Methods 0.000 description 13
- 230000033001 locomotion Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
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- 238000005516 engineering process Methods 0.000 description 5
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- 239000000696 magnetic material Substances 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 210000003454 tympanic membrane Anatomy 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 210000003477 cochlea Anatomy 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- NVIVJPRCKQTWLY-UHFFFAOYSA-N cobalt nickel Chemical compound [Co][Ni][Co] NVIVJPRCKQTWLY-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000002751 lymph Anatomy 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000860 cochlear nerve Anatomy 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- 210000003478 temporal lobe Anatomy 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a dual-positioning type bone conduction loudspeaker device. The device comprises a supporting part; a magnetic assembly which at least comprises one magnetic part; and a positioning assembly which at least comprises two elastic elements. The magnetic assembly and the positioning assembly are disposed on the supporting part. The two elastic elements are respectively connected with the magnetic assembly. The magnetic assembly and the supporting part remain relatively stationary. Through the arrangement of a dual-positioning structure, the device guarantees that the relative position of a magnetic gap and a voice coil remains the initial position when a bone conduction loudspeaker works, thereby preventing noise sound and guaranteeing the sound quality of the loudspeaker. Moreover, the device can be thinner, is smaller in size, and is lighter in weight. The device improves the sensitivity while reducing the noise sound, and reduces the power consumption.
Description
Technical field
The present invention relates to a kind of bone-conduction speaker, more specifically, relate to the bone-conduction speaker device of a kind of pair of locate mode.
Background technology
In general, acoustical vibration is by air borne to the eardrum in ear, and drum vibration of membrane propagates into cochlea through three of eardrum medial surface phonophores again, and then vibration is converted to the vibration of the lymph liquid be full of in cochlea.The vibration of lymph liquid is converted to bioelectrical signals, and is delivered to the auditory center of brain temporal lobe by auditory nerve, thus human brain just can sound recognition.Bone-conduction speaker is then eliminate the process of acoustical vibration through eardrum and phonophore, the vibration of sound is directly delivered to cochlea by cranium, even if eardrum and phonophore have the low person of abnormal hearing, osteoacusis path also can be utilized clearly to hear sound.
In prior art, bone-conduction speaker is generally used for special application scenario, such as, in police or military communications equipment, but along with the progressively development of technology, expands to civil area at present.Because its conduction pattern is by bone conduct vibrations, bone-conduction speaker is very strong to the interference resistivity of noise, is therefore particularly suitable for using in noisy environment out of doors.And concerning civilian technology, the use of loud speaker needs to take into account sound quality problem usually, but current bone-conduction speaker does not have good breakthrough, and (police or military bone-conduction speaker is not strict with tonequality, only needs speech communication information clear in this direction always.The Hz-KHz of current police or military bone-conduction speaker is very narrow, and considers property durable in use and cost, assembly technology etc. requirement, and what it adopted is generally moving-iron type structure technology).
At present, bone-conduction speaker has developed into various kind and form.Such as, disclose " a kind of bone-conduction speaker and compound vibrating device thereof " in one section of Chinese patent application CN102497612A of applicant, as as described in Fig. 1 to 5, this bone-conduction speaker comprises vibration-transmitting plate 100, oscillating plate 200, plastic washers 300, annular magnetic conductive board 400, voice coil loudspeaker voice coil 500, interior magnetic conductive board 600, toroidal magnet 700, inner magnet 800, base plate 900 and panel 110.Wherein, these six component physicals of plastic washers 300, annular magnetic conductive board 400, toroidal magnet 700, base plate 900, inner magnet 800 and interior magnetic conductive board 600 link together, part I, annular magnetic conductive board 400, toroidal magnet 700, base plate 900, inner magnet 800 and interior magnetic conductive board 600 constitute magnetic system, these five parts are arranged all with one heart, and forming the strongest magnetic field intensity in gap between interior magnetic conductive board 600 and annular magnetic conductive board 700, the gap between interior magnetic conductive board 600 and annular magnetic conductive board 700 is magnetic gap 120.
Vibration-transmitting plate 100, oscillating plate 200, panel 110 and voice coil loudspeaker voice coil 500 part II, wherein vibration-transmitting plate 100, oscillating plate 200 constitute oscillating component together with the physical connection of panel 110 center, vibration-transmitting plate 100 and oscillating plate 200 are flexible member, edge interlocks, form double-deck vibrational structure, voice coil loudspeaker voice coil 500 physical connection is on the downside of the torus 201 of oscillating plate 200.Part ii opposite segments I does the longitudinal relative motion along magnet axis direction.
Part I and part ii relative motion, its actuating force derives from the effect between the electric current in the magnetic field in the magnetic gap 120 in part I and the voice coil loudspeaker voice coil 500 belonging to part ii in magnetic gap 120.
Coupled together by flexible member and vibration-transmitting plate 100 and oscillating plate 200 between part I and part ii, under Electromagnetic Drive, two parts just can stablize controlled relative motion, externally export vibration, make people hear sound.
Although this bone-conduction speaker can work well from principle, in engineering practice, still encounter following two problems: while 1, sensitivity increases, have noise.Because when designing in order to increase the sensitivity of device, capital reduces the size of magnetic gap 120 to increase the magnetic flux density in magnetic gap 120 as far as possible, therefore voice coil loudspeaker voice coil 500 is needed accurately to locate in magnetic gap 120, otherwise voice coil loudspeaker voice coil 500 will be encountered on interior magnetic conductive board 600 or annular magnetic conductive board 700, produce noise.And in order to increase another sensitive design alternative be: as far as possible flexible member and vibration-transmitting plate 100 and oscillating plate 200 are done soft, select little coefficient of elasticity to reduce resistance.And to voice coil loudspeaker voice coil 500, accurately location and the demand of flexible member being done soft these two aspects are contradiction, because the quality of magnetic system causes the quality of part I very large, as shown in Figure 4, when user normally wears bone-conduction speaker, vibrating speaker is placed vertically, and too soft flexible member can under the Action of Gravity Field of the part I of large quality, and let droop pendant also outwards rollover, make the relative position between voice coil loudspeaker voice coil 500 and above-mentioned magnetic gap 120 not in the position that technical staff sets at first, offset.And this skew serious time, noise will be caused, reduce the tonequality of bone-conduction speaker.2, while noise reduces, sensitivity can reduce.Because conventional art personnel are for solving souffle problem, common selection is, increase the hardness of flexible member and vibration-transmitting plate 100 and oscillating plate 200, and increase magnetic gap 120, this technical measures, while improving tonequality, also seriously can reduce the sensitivity of device, make similar device want to send identical large volume, larger power must be consumed, and have larger volume, heavier profile.
In sum, in order to solve, existing bone-conduction speaker magnetic field intensity is low, noise is many, lower tone, sensitivity are low, big energy-consuming and bulky problem, and urgent need will carry out architecture advances to existing bone-conduction speaker, to meet the user demand of consumer.
Summary of the invention
One object of the present invention, is the bone-conduction speaker device providing a kind of pair of locate mode, and it can avoid vibration component in vibration processes, be affected by gravity the deflection of generation.
Another object of the present invention, is the bone-conduction speaker device providing a kind of pair of locate mode, and the flexible member suspension that it adopts can further improve sensitivity.
Another object of the present invention, is the bone-conduction speaker device providing a kind of pair of locate mode, and it while improving loud speaker tonequality, can not affect the sensitivity of loudspeaker device.
Another object of the present invention, is the bone-conduction speaker device providing a kind of pair of locate mode, and it can reduce volume and weight reduction.
For achieving the above object, the present invention by the following technical solutions:
A bone-conduction speaker device for pair locate mode, it is characterized in that, described bone-conduction speaker device comprises:
Support portion;
Magnet assembly, described magnet assembly at least comprises a magnetic part;
Positioning component, described positioning component at least comprises two flexible members;
Described magnet assembly and described positioning component are all arranged on described support portion;
Two described flexible members are connected with described magnet assembly respectively;
Position between described magnet assembly with described support portion keeps relative fixing.
As a kind of preferred version of bone-conduction speaker device,
Described magnet assembly at least comprises the first magnetic part 5,16 and second magnetic part 7,17, and described first magnetic part 5,16 is magnetic conductor or magnet, and described second magnetic part 7,17 is magnetic conductor or magnet;
Between described first magnetic part 5,16 and described second magnetic part 7,17, there is magnetic gap 10,15.
Magnetic conductor, also known as field concentrator or iron core, is the lamination or block elements be made up of soft magnetic material, conventional magnetic conductor material: silicon steel sheet, ferrite and iron.
Magnetic conductor is as the electric conductor in transmission system, and resistance is very little, is easy to electric current by similar, and the magnetic resistance of magnetic conductor is very little, is easy to magnetic flux and passes through.
As a kind of preferred version of bone-conduction speaker device,
Described positioning component comprises the first flexible member 2,12 and second flexible member 8,18;
On the bearing of trend of described first flexible member 2,12, described first flexible member 2,12 makes the first magnetic part 5,16 keep relative fixing with the position between described support portion;
On the bearing of trend of described second flexible member 8,18, described second flexible member 8,18 makes the second magnetic part 7,17 keep relative fixing with the position between described support portion.
By all arranging the first flexible member 2,12 and second flexible member 8,18 of positioning action on the first magnetic part 5,16 and second magnetic part 7,17, two location is formed to magnet assembly, makes the first magnetic part 5,16 and second magnetic part 7, position between 17 with flexible member keeps relative and fix on the bearing of trend at described first flexible member 2,12 and second flexible member 8,18.Thus when loud speaker overall work, the relative position of magnetic gap and voice coil loudspeaker voice coil is enable to keep initial, set position in the axial direction, and then avoid the impact that magnet assembly, voice coil loudspeaker voice coil etc. are subject to gravity in vibration processes, generation radial deflection or even significantly deflection, thus avoid the generation of the noise caused therefrom, ensure that the tonequality of loud speaker.
As a kind of preferred version of bone-conduction speaker device,
The bearing of trend of described first flexible member 2,12 is parallel with the bearing of trend of described second flexible member 8,18;
Described magnet assembly has the axis of symmetry, and the axis direction of described magnet assembly is all vertical with the bearing of trend of the bearing of trend of described first flexible member 2,12, described second flexible member 8,18.
The bearing of trend of the first flexible member 2,12 is set to parallel with the bearing of trend of described second flexible member 8,18, and it is vertical with the axis direction of described magnet assembly, thus when making loud speaker overall work, the relative position of voice coil loudspeaker voice coil in magnetic gap is enable to keep initial, set position in the axial direction, and then avoid the impact that magnet assembly, voice coil loudspeaker voice coil etc. are subject to gravity in vibration processes, produce radial deflection.
As a kind of preferred version of bone-conduction speaker device,
Described support portion comprises the first housing 1,11 and second housing 9,19;
Described first housing 1,11 and second housing 9,19 forms the spatial accommodation being used for housing magnetic components, positioning component;
Further, on the bearing of trend of described first flexible member 2,12, described first flexible member 2,12 makes the position between the first magnetic part 5,16 with described first housing 1,11 keep relative fixing.
On the bearing of trend of described second flexible member 8,18, described second flexible member 8,18 makes the position between the second magnetic part 7,17 with described second housing 9,19 keep relative fixing.
Support portion, except adopting two housings be oppositely arranged described above, can also be supporting structure, as long as can play a supporting role to magnet assembly and positioning component.
As a kind of preferred version of bone-conduction speaker device,
Described first magnetic part 5,16 is provided with first step 51,161, to form oscillation space by first step 51,161 between the first magnetic part 5,16 and first flexible member 2,12.
Described second magnetic part 7,17 is provided with second step 71,171, to form oscillation space by second step 71,171 between the second magnetic part 7,17 and second flexible member 8,18.
Flexible member drives magnet assembly vibration, flexible member is maximum along axis of symmetry Direction distortion in central area, minimum with the region deformation of packing ring or case bonding on limit, and magnet assembly displacement is in the axial direction the deflection at flexible member center, first step 51,161 and second step 71,171 ensure to form oscillation space between magnet assembly and flexible member, first step 51,161 and second step 71,171 have certain requirement for height, to avoid magnet assembly to get to flexible member in motion process, form noise.
Described first step 51,161 arranges the first location division 52,162 away from the side of described second magnetic part 7,17.
Described second step 71,171 arranges the second location division 72,172 away from the side of described first magnetic part 5,16.
Described first flexible member 2,12 is provided with the first location hole 21,121 matched with described first location division 52,162, described second flexible member 8,18 is provided with the second location hole 81,181 matched with described second location division 72,172.
As a kind of preferred version of bone-conduction speaker device,
Described second magnetic part 7,17 has to the extended annular sidewall 73,173 in described first magnetic part 5,16 direction, between described annular sidewall 73,173 and described first magnetic part 5,16, form described magnetic gap 10,15.
As a kind of preferred version of bone-conduction speaker device, also comprise voice coil loudspeaker voice coil 4,14, in the magnetic gap 10,15 being arranged between described first magnetic part 5,16 and described second magnetic part 7,17 at least partially of described voice coil loudspeaker voice coil 4,14.
As a kind of preferred version of bone-conduction speaker device, between the first housing 1,11 and second housing 9,19, be provided with packing ring 3,13, described packing ring 3,13 is ring washer, and described voice coil loudspeaker voice coil 4,14 is fixed on described packing ring 3,13.
As a kind of preferred version of bone-conduction speaker device, described first flexible member 2,12 and described second flexible member 8,18 lay respectively at the both sides of described first magnetic part 5,16 and second magnetic part 7,17, and described first flexible member 2,12 is all fixedly connected with described first magnetic part 5,16 with described packing ring 3,13, described second flexible member 8,18 is all fixedly connected with described second magnetic part 7,17 with described second housing 9,19.
As a kind of preferred version of bone-conduction speaker device, described first flexible member 2,12 comprises torus and the first cylindrical ring body in first, in described first, evenly arrange at least two first poles 22,122 between torus and described first cylindrical ring body;
And/or described second flexible member 8,18 comprises torus and the second cylindrical ring body in second, in described second, between torus and described second cylindrical ring body, evenly at least two second poles 82,182 are set.
As a kind of preferred version of bone-conduction speaker device, in described first, in torus, be provided with the first location hole 21,121; The second location hole 81,181 is provided with in torus in described second; And/or
Converge like the spokes of a wheel at the hubly to center between torus and described first cylindrical ring body in described first arrange described first pole, described first pole is preferably straight-bar;
Converge like the spokes of a wheel at the hubly to center between torus and described second cylindrical ring body in described second arrange described second pole, described second pole is preferably straight-bar.
As a kind of preferred version of bone-conduction speaker device, in the vertical direction of the axis with the first magnetic part 5,16 and/or magnet assembly, namely, on the bearing of trend of the first flexible member 2,12, between the first flexible member 2,12 and first housing 1,11, there is gap or gapless;
And/or, in the vertical direction of the axis with the first magnetic part 5,16 and/or magnet assembly, namely on the bearing of trend of described second flexible member 8,18, between described second flexible member 8,18 and described second housing 9,19, there is gap or gapless.
As a kind of preferred version of bone-conduction speaker device, the first magnetic part 5,16, second magnetic part 7,17 bonds together indirectly or directly; And/or, the first housing 1,11, packing ring 3,13, second housing 9,19 is fixed together, voice coil loudspeaker voice coil 4,14 is arranged on packing ring 3,13.
As a kind of preferred version of bone-conduction speaker device, the center of the first flexible member 2,12 engages with the first location division 52,162 of the first magnetic part 5,16 and/or bonding; And/or
The upper surface of the periphery lower surface bonds packing ring 3,13 of the first flexible member 2,12;
The center of the second flexible member 8,18 engages with the second location division 72,172 of the second magnetic part 7,17 and/or bonding; And/or
The periphery of the second flexible member 8,18 is fixed on the second housing 9,19.
First flexible member 2,12 engages or bonding way except adopting with the connected mode of the first magnetic part 5,16, can also connect or other attainable connected mode for bolt.
Second flexible member 8,18 engages or bonding way except adopting with the connected mode of the second magnetic part 7,17, can also connect or other attainable connected mode for bolt.
Contrast prior art, beneficial effect of the present invention is: (1), the present invention by all arranging flexible member on the first magnetic part and the second magnetic part, two location is formed to magnet assembly, make the first magnetic part relative with the position between support portion with the second magnetic part fixing, thus when speaker operation, make the relative position of magnetic gap and voice coil loudspeaker voice coil keep initial, set position, and then avoid the generation of noise, ensure that the tonequality of loud speaker.(2), can make that bone-conduction speaker device is thinner, volume is less, weight is lighter.(3), in the sensitivity reducing enhance device while noise, power consumption is reduced.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of existing bone-conduction speaker.
Fig. 2 is the schematic perspective view of the vibrating mass of the loud speaker shown in Fig. 1.
The exploded perspective schematic diagram that Fig. 3 is the loud speaker shown in Fig. 1.
The wearing state schematic diagram that Fig. 4 is the loud speaker shown in Fig. 1.
Fig. 5 is the loudspeaker vibration direction schematic diagram of Fig. 1.
Fig. 6 is the exploded perspective schematic diagram of the bone-conduction speaker device of the two locate modes described in embodiment one.
Fig. 7 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes shown in Fig. 6.
Fig. 8 be in Fig. 7 A to close-up schematic view.
The combination schematic diagram (removal support portion) that Fig. 9 is the bone-conduction speaker device of the two locate modes described in embodiment one.
Figure 10 is the assembling schematic diagram of magnet assembly, positioning component and voice coil loudspeaker voice coil in Fig. 9.
Figure 11 is the assembling schematic diagram of magnet assembly and positioning component in Fig. 9.
Figure 12 is the structural representation of magnet assembly in Fig. 9.
Figure 13 is the cross-sectional schematic of Figure 12.
Figure 14 is the exploded perspective schematic diagram of the bone-conduction speaker device of the two locate modes described in embodiment two.
Figure 15 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes shown in Figure 14.
Figure 16 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment three.
Figure 17 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment four.
Figure 18 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment five.
Figure 19 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment six.
Figure 20 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment seven.
Figure 21 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment eight.
Figure 22 is the cross-sectional schematic of the bone-conduction speaker device of the two locate modes described in embodiment nine.
Figure 23 is the bone-conduction speaker finite element modelling Magnetic Induction Density Distribution comparison diagram having unparalleled locate mode described in embodiment ten.
Figure 24 is the bone-conduction speaker finite element modelling frequency response comparison diagram having unparalleled locate mode described in embodiment ten.
Embodiment
embodiment one
A kind of structural representation of bone-conduction speaker device of two location shown in Fig. 7.The bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil and packing ring between magnet assembly and support portion.
Support portion can comprise the first housing 1 and the second housing 9, first housing 1 and to connect with the second housing 9 spatial accommodation that can be formed for housing magnetic components, flexible member and/or voice coil loudspeaker voice coil.First housing 1 can be in the same side with the first magnetic conductor 5, can have gap between the two.Second housing 9 can be in the same side with the second magnetic conductor 7, can have gap between the two.Support portion mentioned here can be support, the device also can played a supporting role to magnet assembly and positioning component for other.
Can be fixedly installed a packing ring 3 in the spatial accommodation that first housing 1 and the second housing 9 are formed, this packing ring 3 is preferably annular.The internal diameter of ring washer 3 is less than the internal diameter of the first housing 1 and the second housing 9, the inner side edge of this ring washer 3 is protruded towards inner side relative to the first housing 1 and the second housing 9, the external diameter of ring washer 3 can be identical with the external diameter of the second housing 9 with the first housing 1, also can be different.Preferably, the external diameter of ring washer 3 is identical with the external diameter of the second housing 9 with the first housing 1, to form smooth, smooth outerplanar.Packing ring 3 can be fixedly installed on the first housing 1 and the second housing 9 joint, also can be fixedly installed in the inner side of the spatial accommodation that the first housing 1 and the second housing 9 are formed.Certain mode can be adopted to connect as one between packing ring 3, first housing 1 and the second housing 9.Above-mentioned connected mode can be physics mode, such as clamping and welding, can be also chemical mode, such as, bond, and preferably, bonding way can be adopted to connect as one between packing ring 3, first housing 1 and the second housing 9.
Inside the second housing 9, namely towards the side of the first housing 1, on bottom surface, the lower surface of setting table terrace 91, second flexible member 8 is fixedly installed on step surface 91.Second flexible member 8 and step surface 91 can link together in some way, and above-mentioned connected mode can be physics mode, such as, engage and weld, also can be chemical mode, such as bond, preferably, the second flexible member 8 can be connected by bonding mode with between step surface 91.
Packing ring 3 can be fixedly installed a voice coil loudspeaker voice coil 4, voice coil loudspeaker voice coil 4 can be fixed on the inner side lower surface of packing ring 3.Certain mode can be adopted to connect as one between this packing ring 3 and voice coil loudspeaker voice coil 4.This connected mode can be physics mode, such as clamping and welding, can be also chemical mode, such as, bond, and preferably, adopts bonding way to connect as one between packing ring 3 and voice coil loudspeaker voice coil 4.Voice coil loudspeaker voice coil 4 continues to downward-extension from the inner side lower surface of packing ring 3, and in the magnetic gap that formed of the circumferential lateral edge 73 being in the first magnetic conductor 5 and the second magnetic conductor.
Magnet assembly can comprise the first magnetic conductor 5, second magnetic conductor 7 and magnet 6.Magnet mentioned here can be but be not limited to the magnet materials such as ferro-aluminum boron, cobalt nickel aluminium, rare earth material, composite material and permanent-magnet ferrite, here the magnetic conductor said also claims field concentrator or iron core, can be but be not limited to lamination that soft magnetic material makes or block elements, the soft magnetic material said here can be but be not limited to silicon steel sheet, ferrite and iron.Magnet 6 can be located between the first magnetic conductor 5 and the second magnetic conductor 7, and preferably, the first magnetic conductor 5 and the second magnetic conductor 7 are individually fixed in the both sides of magnet 6.Certain mode can be adopted to connect as one between first magnetic conductor 5, second magnetic conductor 7 and magnet 6, can be physics mode, and such as clamping and welding can be also chemical modes, such as, bond.Preferably, bonding way can be adopted to connect as one between the first magnetic conductor 5, second magnetic conductor 7 and magnet 6.First magnetic conductor 5, second magnetic conductor 7 and magnet 6 can be set to coaxially, preferably, first magnetic conductor 5, second magnetic conductor 7 and magnet 6 are all set to the structure with same symmetrical axle center, the structure in symmetrical axle center mentioned here can be circulus, column structure, also can be that other have the structure in symmetrical axle center.
The center of the first magnetic conductor 5, the first step 51 of protrusion can be provided with, the direction that first step 51 extends is away from magnet 6 and the second magnetic conductor 7, between the first magnetic conductor 5 and the first flexible member 2, oscillation space is formed by first step 51, ensure that the first flexible member 2 can drive the first magnetic conductor 5 to vibrate, if do not arrange this first step 51, although the first flexible member 2 can drive magnet assembly to vibrate, noise can be produced.The central area of flexible member is maximum along axis of symmetry Direction distortion, minimum with the region deformation of case bonding on limit.Because flexible member drives magnet assembly vibration, and magnet assembly displacement is in the axial direction the deflection at flexible member center, the height of first step 51 can ensure to form oscillation space size between magnet assembly and flexible member, preferably, the height of first step 51 be greater than flexible member in central area the maximum along the deformation of axis of symmetry direction, to avoid magnet assembly to get to flexible member in motion process, form noise.At the center of first step 51, the direction that first location division 52, location division 52, first that can be provided with protrusion extends is away from magnet 6 and the second magnetic conductor 7, is positioned the first magnetic conductor 5 by the first location division 52.
The periphery of the second magnetic conductor 7 can the upwards extended side 73 having a protrusion, and preferably, side 73 is annular.Side 73 can extend from the second magnetic conductor 7 towards the direction of the first magnetic conductor 5 and magnet 6, and, the diameter of side 73 can be greater than the external diameter of the first magnetic conductor 5, thus forms magnetic gap between side 73 and the first magnetic conductor 5, and forms stronger magnetic field in this magnetic gap.
The center of the second magnetic conductor 7 can be arranged has a stage portion, and in it, the end can be set to lower thinner, and can form recess relative to stage portion thus, the center of the second magnetic conductor 7 also can not arrange this stage portion and recess.Recess mentioned here can be used for placing magnet, certain mode can be adopted to be fixedly connected on by magnet in the recess of the second magnetic conductor 7, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, magnet adopts bonding way to be fixedly connected in the recess of the second magnetic conductor 7.The setting party of recess mentioned here assembling but weakening of magnetic field can be caused, preferably, can the stage portion of design modifying different depth and recess as required, also this stage portion and recess can not be set.
The center of the second magnetic conductor 7, the second step 71 of protrusion can be provided with, the direction that second step 71 extends is away from magnet 6 and the first magnetic conductor 5, between the second magnetic conductor 7 and the second flexible member 8, oscillation space is formed by second step 71, ensure that the second flexible member 8 can drive the second magnetic conductor 7 to vibrate, if do not arrange this second step 71, although the second flexible member 8 can drive magnet assembly to vibrate, noise can be produced.The central area of flexible member is maximum along axis of symmetry Direction distortion, minimum with the region deformation of case bonding on limit.Because flexible member drives magnet assembly vibration, and magnet assembly displacement is in the axial direction the deflection at flexible member center, the height of second step 71 can ensure to form oscillation space size between magnet assembly and flexible member, preferably, the height of second step 71 be greater than flexible member in central area the maximum along the deformation of axis of symmetry direction, to avoid magnet assembly to get to flexible member in motion process, form noise.At second step 71 center, the direction that second location division 72, location division 72, second that can be provided with protrusion extends is away from magnet 6 and the first magnetic conductor 5, is positioned the second magnetic conductor 7 by the second location division 72.
Positioning component can comprise the both sides that the first flexible member 2 and the second flexible member 8, first flexible member 2 and the second flexible member 8 can lay respectively at magnet assembly.Preferably, magnet assembly center of gravity in the middle of the first flexible member 2 and the second flexible member 8, more preferably, the center of gravity of magnet assembly, the center of the first flexible member 2 and the second flexible member 8 be centrally located on straight line; Further preferably, according to the position of the coefficient of elasticity adjustment magnet assembly center of gravity of the first flexible member 2 and the second flexible member 8, the first flexible member 2 has consistent distortion with the elasticity of the second flexible member 8 to make it ensure.First flexible member 2 can be fixed on the first location division 52 and packing ring 3, and the second flexible member 8 can be fixed on the second housing 9 and the second location division 72.First flexible member 2, second flexible member 8 packing ring 3 can form compound vibrating device, can produce two resonance peaks by dual complex vibration.At least one resonance peak in complex vibration can be produced under the acting in conjunction of the first flexible member 2 and the second flexible member 8.Further, regulate size and the material parameter of two parts, resonance peak can be allowed to be moved, the resonance peak of low frequency moves to getting over low frequency, and the resonance peak of high frequency is to getting over high-frequency mobile.Preferably, in the frequency range of sound that two resonance peaks can not be heard at people's ear; More preferably, within the frequency range of the sound that resonance peak can be heard at people's ear, outside the frequency range of the sound that another resonance peak can be heard at people's ear; Preferred, in the frequency range of the sound that two resonance peaks all can be heard at people's ear; And still more preferably, in the frequency range of the sound that two resonance peaks all can be heard at people's ear, and its crest frequency is between 80Hz-18000Hz; Still more preferably, in the frequency range of the sound that two resonance peaks all can be heard at people's ear, and its peak value is between 200Hz-15000Hz; Still more preferably, in the frequency range of the sound that two resonance peaks all can arrive at people's ear, and its peak value is between 500Hz-12000Hz; Still more preferably, in the frequency range of the sound that two resonance peaks all can arrive at people's ear, and its peak value is between 800Hz-11000Hz.The frequency of the peak value of resonance peak preferably can have certain gap, and such as, the peak value of two resonance peaks differs at least 500Hz; Preferably, the peak value of two resonance peaks differs at least 1000Hz; Still more preferably, the peak value of two resonance peaks differs at least 2000Hz; Again still more preferably, the peak value of two resonance peaks differs at least 5000Hz.In order to reach reasonable effect, two resonance peaks can all within people's ear range of audibility, and the crest frequency of resonance peak differs at least 500Hz; Preferably, two resonance peaks can all within people's ear range of audibility, and the peak value of two resonance peaks differs at least 1000Hz; Again further preferably, two resonance peaks can all within people's ear range of audibility, and the peak value of two resonance peaks differs at least 2000Hz; And still more preferably, two resonance peaks can all within people's ear range of audibility, and the peak value of two resonance peaks differs at least 3000Hz; Can also still more preferably, two resonance peaks can all within people's ear range of audibility, and the peak value of two resonance peaks differs at least 4000Hz.In two resonance peaks can one within people's ear range of audibility, another is outside people's ear range of audibility, and the crest frequency of two resonance peaks differs at least 500Hz; Preferably, a resonance peak is within people's ear range of audibility, and another is outside people's ear range of audibility, and the crest frequency of two resonance peaks differs at least 1000Hz; More preferably, a resonance peak is within people's ear range of audibility, and another is outside people's ear range of audibility, and the crest frequency of two resonance peaks differs at least 2000Hz; Further preferably, a resonance peak is within people's ear range of audibility, and another is outside people's ear range of audibility, and the crest frequency of two resonance peaks differs at least 3000Hz; Still more preferably, a resonance peak is within people's ear range of audibility, and another is outside people's ear range of audibility, and the crest frequency of two resonance peaks differs at least 4000Hz.Two resonance peaks can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks differs at least 400Hz; Preferably, two resonance peaks can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks differs at least 1000Hz; More preferably, two resonance peaks can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz; Further preferably, two resonance peaks can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks differs at least 3000Hz; Still more preferably, two resonance peaks can all between frequency 5Hz-30000Hz, and the crest frequency of two resonance peaks differs at least 4000Hz.Two resonance peaks can all between frequency 20Hz-20000Hz, and the crest frequency of two resonance peaks differs at least 400Hz; Preferably, two resonance peaks can all between frequency 20Hz-20000Hz, and the crest frequency of two resonance peaks differs at least 1000Hz; More preferably, two resonance peaks can all between frequency 20Hz-20000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz; Further preferably, two resonance peaks can all between frequency 20Hz-20000Hz, and the crest frequency of two resonance peaks differs at least 3000Hz; Still more preferably, two resonance peaks can all between frequency 20Hz-20000Hz, and the crest frequency of two resonance peaks differs at least 4000Hz.Two resonance peaks can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differs at least 400Hz; Preferably, two resonance peaks can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differs at least 1000Hz; More preferably, two resonance peaks can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz; Further preferably, two resonance peaks can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differs at least 3000Hz; Still more preferably, two resonance peaks can all between frequency 100Hz-18000Hz, and the crest frequency of two resonance peaks differs at least 4000Hz.Two resonance peaks can all between frequency 200Hz-12000Hz, and the crest frequency of two resonance peaks differs at least 400Hz; Preferably, two resonance peaks can all between frequency 200Hz-12000Hz, and the crest frequency of two resonance peaks differs at least 1000Hz; More preferably, two resonance peaks can all between frequency 200Hz-12000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz; Further preferably, two resonance peaks can all between frequency 200Hz-12000Hz, and the crest frequency of two resonance peaks differs at least 3000Hz; Still more preferably, two resonance peaks can all between frequency 200Hz-12000Hz, and the crest frequency of two resonance peaks differs at least 4000Hz.Two resonance peaks can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks differs at least 400Hz; Preferably, two resonance peaks can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks differs at least 1000Hz; More preferably, two resonance peaks can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks differs at least 2000Hz; Further preferably, two resonance peaks can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks differs at least 3000Hz; Still more preferably, two resonance peaks can all between frequency 500Hz-10000Hz, and the crest frequency of two resonance peaks differs at least 4000Hz.Widen the resonance respective range of sound equipment thus, obtain desirable sound.First flexible member 2 and/or the second flexible member 8 can adopt elastic materials such as including but not limited to stainless steel, beryllium copper, plastic cement, PC, and preferably, the thickness of the first flexible member 2 and/or the second flexible member 8 is 0.005mm ~ 3mm; More preferably, the thickness of the first flexible member 2 and/or the second flexible member 8 is 0.01mm ~ 2mm; More preferably, the thickness of the first flexible member 2 and/or the second flexible member 8 is 0.01mm ~ 1mm; More preferably, the thickness of the first flexible member 2 and/or the second flexible member 8 is 0.02mm ~ 0.5mm.First flexible member 2 and the second flexible member can be of similar shape or structure, also can have different shapes or structure.Preferably, first flexible member 2 is an elastic plate, can be set to have torus and the first cylindrical ring body in first, in first, torus is positioned at the center of the first cylindrical ring body, can be provided with the first pole being no less than to center in this first cylindrical ring body, in first, torus center can be provided with the first location hole converge like the spokes of a wheel at the hubly; Preferably, second flexible member 8 is an elastic plate, can be set to have torus and the second cylindrical ring body in second, in second, torus is positioned at the center of the second cylindrical ring body, can be provided with the second pole being no less than to center in this second cylindrical ring body, in second, torus center can be provided with the second location hole converge like the spokes of a wheel at the hubly.First pole can be identical with the number of the second pole, also can be different, preferably, the number of the first pole and the second pole is for being more than or equal to two, and more preferably, the number of the first pole and the second pole is three, further preferably, the number of the first pole and/or the second pole is greater than three.Preferably, pole is straight-bar; Preferably, the width of pole is not less than 0.2mm, and more preferably, the width of pole is 0.4mm ~ 1.5mm, and more preferably, the width of pole is 0.6mm ~ 1.0mm.
Preferably, the external diameter of the first flexible member 2, the i.e. external diameter of the first cylindrical ring body, be less than the internal diameter of the first housing 1; Preferably, at magnet assembly axially, the first flexible member 2 and the first housing 1 also have gap, and the first flexible member 2 does not directly contact with the first housing 1.Link together in some way between first flexible member 2 and packing ring 3, above-mentioned connected mode can be physics mode, such as, engage and weld, also can be chemical mode, such as bond, preferably, the connected mode between the first flexible member 2 and packing ring 3 is for bond.
The first location hole 21 in first flexible member 2 matches with the first location division 52 on the first magnetic conductor 5, both adopt certain mode to be fixed together, can be physics mode, such as, engage, bolt and welding, also can be chemical mode, such as bond, preferably, adopt engaging or bonding mode affixed, more preferably, affixed mode is affixed with one heart; The second location hole 81 in second flexible member 8 matches with the second location division 72 on the second magnetic conductor 7, both adopt certain mode to be fixed together, can be physics mode, such as, engage, bolt and welding, also can be chemical mode, such as bond, preferably, adopt engaging or bonding mode affixed, more preferably, affixed mode is affixed with one heart.In concrete installation process, center projection first location division 52 of the first magnetic conductor 5, corresponding recessed first location hole 21 at the center of the first flexible member 2, inserts the first location division 52 in the first location hole 21 during installation, realizes the first magnetic conductor 5 concentric affixed with the first flexible member 2; Center projection second location division 72 of the second magnetic conductor 7, corresponding recessed second location hole 81 at the center of the second flexible member 8, inserts the second location division 72 in the second location hole 81 during installation, realizes the second magnetic conductor 7 concentric affixed with the second flexible member 8.
When the bone-conduction speaker device of two location works, the magnetic systems be made up of the first magnetic conductor 5, magnet 6 and the second magnetic conductor 7 is generation current induction when voice coil loudspeaker voice coil 4 is energized, and then the magnetic field intensity of magnetic systems is changed, the parameters such as inductance also change thereupon, voice coil loudspeaker voice coil 4 is subject to the effect of Ampere force in magnetic field, thus makes to produce longitudinal back and forth movement between voice coil loudspeaker voice coil 4 and the first magnetic conductor 5, magnet 6, second magnetic conductor 7.Vibration passes to the first housing 1, second housing 9 by packing ring 3, and by with the position that people's bone directly contacts, acoustical vibration is delivered to people's bone, thus allows people respond to sound by osteoacusis.Voice coil loudspeaker voice coil 4 is fixed on packing ring 3, make when speaker operation, the installation site of voice coil loudspeaker voice coil 4 can not offset, because the first magnetic conductor 5 is relative with the position between flexible member with the second magnetic conductor 7 fixing, also namely the installation site of magnetic gap 10 is constant, and then ensure that the installation stability of voice coil loudspeaker voice coil, thus fundamentally ensure that the tonequality of loud speaker.
Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment two
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 15, the structure of its pair of location can be different from embodiment one.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil and packing ring between magnet assembly and support portion.Support portion can comprise the first housing 11 and the second housing 19, first housing 11 connects with the second housing 19 spatial accommodation formed for housing magnetic components, flexible member and/or voice coil loudspeaker voice coil, inside the second housing 19, namely towards the side of the first housing 11, on bottom surface, the lower surface of setting table terrace 191, second flexible member 18 is fixedly installed on step surface 191.A packing ring 13 can be fixedly installed in the spatial accommodation that first housing 11 and the second housing 19 are formed, packing ring 13 can be fixedly installed a voice coil loudspeaker voice coil 14.Magnet assembly can comprise magnetic conductor 17 and magnet 16, whether the center of magnetic conductor 17 can determine to arrange as required has a stage portion and recess (not shown in FIG.), the periphery of magnetic conductor 17 can the upwards extended side 173 having a protrusion, the center of magnetic conductor 7 can be provided with the second step 171 of protrusion, at second step 171 center, the second location division 172 of protrusion can be provided with, be positioned by 172 pairs, the second location division magnetic conductor 17.Positioning component can comprise the both sides that the first flexible member 12 and the second flexible member 18, first flexible member 12 and the second flexible member 18 can lay respectively at magnet assembly.First flexible member 12 is fixed on the first location division 162 and packing ring 13, and the second flexible member 18 is fixed on the second housing 19 and the second location division 172.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment one with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With in embodiment one, first location division 52 to be arranged in first step 51 in the heart unlike, in the present embodiment, magnet assembly only can comprise magnetic conductor 17 and magnet 16, there is no second magnetic conductor, at the center of magnet 16, be provided with the first step 161 of protrusion, the direction that this first step 161 extends is away from magnetic conductor 17, to form oscillation space by first step 161 between magnet 16 and the first flexible member 12, ensure that the first flexible member 12 can be with moving magnet 16 to vibrate, if do not arrange this first step 161, although the first flexible member 12 can drive magnet assembly to vibrate, but can noise be produced.The central area of flexible member is maximum along axis of symmetry Direction distortion, minimum with the region deformation of case bonding on limit.Because flexible member drives magnet assembly vibration, and magnet assembly displacement is in the axial direction the deflection at flexible member center, the height of first step 161 can ensure to form oscillation space size between magnet assembly and flexible member, preferably, the height of first step 161 be greater than flexible member in central area the maximum along the deformation of axis of symmetry direction, to avoid magnet assembly to get to flexible member in motion process, form noise.Be provided with the first location division 162 of protrusion at first step 161 center, the direction that this first location division 162 extends is away from magnetic conductor 17, to be positioned by 162 pairs, the first location division magnet 16.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment one.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment three
A kind of structural representation of bone-conduction speaker device of two location as shown in figure 16.The bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil, oscillating plate and connector between magnet assembly and support portion.
Support portion can comprise the first housing 26 and the second housing (not shown in FIG.), and the first housing 26 connects with the second housing the spatial accommodation formed for housing magnetic components, flexible member and/or voice coil loudspeaker voice coil.First housing 26 can be in the same side with the first magnetic conductor 24, can have gap between the two.Second housing can be in the same side with the second magnetic conductor 20, can have gap between the two.Support portion mentioned here also can be support, or other structure can played a supporting role to magnet assembly and positioning component.
First housing 26 can be fixedly installed an oscillating plate 30, preferably, oscillating plate 30 is annular.Certain mode can be adopted to connect as one between oscillating plate 30 and the first housing 26, can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, between oscillating plate 30 and the first housing 26, adopt bonding way to connect as one.Oscillating plate 30 can be set to coaxial with the first magnetic conductor 24, second magnetic conductor 20 and magnet 27, preferably, oscillating plate 30, first magnetic conductor 24, second magnetic conductor 20 and magnet 27 are all set to the structure with same symmetrical axle center, the structure in symmetrical axle center mentioned here can be circulus, column structure, also can be that other have the structure in symmetrical axle center; Preferably, the diameter of oscillating plate 30 can be greater than the internal diameter of the first magnetic conductor 24 and be less than the internal diameter of the second magnetic conductor side 203, thus in the middle of the magnetic gap that formed at the second magnetic conductor side 203 and the first magnetic conductor 24 of the outer of oscillating plate 30.Preferably, at the center of oscillating plate 30, the step 301 of protrusion can be provided with, the direction that step 301 extends is away from the first magnetic conductor 24, between oscillating plate 30 and the first flexible member 23, form oscillation space by step 301, ensure that the first flexible member 23 can drive the second magnetic conductor 20 to vibrate.At the center of step 301, the direction that first location division 302, location division 302, first that can be provided with protrusion extends is away from the first magnetic conductor 24, is positioned the second magnetic conductor 20 by the first location division 302.
Oscillating plate 30 can be fixedly installed a voice coil loudspeaker voice coil 28, voice coil loudspeaker voice coil 28 to be fixed on inside oscillating plate 30 on lower surface.Certain mode can be adopted between voice coil loudspeaker voice coil 28 and oscillating plate 30 to connect as one, and can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, between oscillating plate 30 and the first housing 26, adopt bonding way to connect as one.Voice coil loudspeaker voice coil 28 continues to downward-extension from the lower surface of oscillating plate 30, and in the magnetic gap that formed of the circumferential lateral edge 203 being in the first magnetic conductor 24 and the second magnetic conductor.
Magnet assembly can comprise the first magnetic conductor 24, second magnetic conductor 20 and magnet 27.Magnet mentioned here can be but be not limited to the magnet materials such as ferro-aluminum boron, cobalt nickel aluminium, rare earth material, composite material and permanent-magnet ferrite, here the magnetic conductor said also claims field concentrator or iron core, can be but be not limited to lamination that soft magnetic material makes or block elements, the soft magnetic material said here can be but be not limited to silicon steel sheet, ferrite and iron.Magnet 27 can be located between the first magnetic conductor 24 and the second magnetic conductor 20, and preferably, the first magnetic conductor 24 and the second magnetic conductor 20 are individually fixed in the both sides of magnet 27.Certain mode can be adopted to connect as one between first magnetic conductor 24, second magnetic conductor 20 and magnet 27, above-mentioned connected mode can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the first magnetic conductor 24, second magnetic conductor 20 and magnet 27.First magnetic conductor 24, second magnetic conductor 20 and magnet 27 can be set to coaxially, preferably, first magnetic conductor 24, second magnetic conductor 20 and magnet 27 are all set to the structure with same symmetrical axle center, the structure in symmetrical axle center mentioned here can be circulus, column structure, also can be that other have the structure in symmetrical axle center.
The center of the second magnetic conductor 20 can be arranged has a stage portion, and in it, the end can be set to lower thinner, can form recess 201 thus relative to stage portion, and the center of the second magnetic conductor 20 also can not arrange this stage portion and recess 201.Recess 201 mentioned here can be used for placing magnet, certain mode can be adopted to be fixedly connected on by magnet in the recess 201 of the second magnetic conductor, above-mentioned connected mode can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, magnet adopts bonding way to be fixedly connected in the recess 201 of the second magnetic conductor.The setting party of recess mentioned here assembling but weakening of magnetic field can be caused, preferably, can the stage portion of design modifying different depth and recess as required, also this stage portion and recess can not be set.
The periphery of the second magnetic conductor 20 can the upwards extended side 203 having a protrusion, and preferably, side 203 is annular.Side 203 can extend from the second magnetic conductor 20 towards the direction of the first magnetic conductor 24 and magnet 27, and, the diameter of side 203 can be greater than the external diameter of the first magnetic conductor 24, thus forms magnetic gap between side 203 and the first magnetic conductor 24, in this magnetic gap, form stronger magnetic field.At the side 203 of the second magnetic conductor 20, be provided with the second location division 202, the direction that second location division 202 extends is the diametric(al) of side 203, away from magnet 27, by the second location division 202, second magnetic conductor 20 is positioned, meanwhile, between the second magnetic conductor 20 and the second flexible member 29, form oscillation space by the second location division 202, ensure that the second flexible member 29 can not produce noise while the second magnetic conductor 20 can be driven to vibrate.Second flexible member 29 and and the first housing 26 between certain mode can be adopted to connect as one, can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, between the second flexible member 29 and the first housing 26, adopt bonding way to connect as one.
Can arrange a connection piece 25 at the second magnetic conductor side 203 and the first flexible member 23 junction, the second magnetic conductor 20 and the first flexible member 23 be linked together, preferably, connector 25 is annular.Second magnetic conductor 20, first flexible member 23 and connector 25 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the second magnetic conductor 20, first flexible member 23 and connector 25.Connector 25 can be set to coaxial with the first magnetic conductor 24, second magnetic conductor 20 and magnet 27, preferably, connector 25, first magnetic conductor 24, second magnetic conductor 20 and magnet 27 are all set to the structure with same symmetrical axle center, the structure in symmetrical axle center mentioned here can be circulus, column structure, also can be that other have the structure in symmetrical axle center.
Positioning component can comprise the both sides that the first flexible member 23 and the second flexible member 29, first flexible member 23 and the second flexible member 29 can lay respectively at connector 25.First flexible member 23 is fixed on the first location division 302 and connector 25, and the second flexible member 29 is fixed on the first housing 26 and the second location division 202.First flexible member 23 and vibration-transmitting plate 30 can form compound vibrating device, two resonance peaks are created by double complex vibration, by regulating size and the material parameter of two parts, resonance peak is allowed to be moved, the resonance peak of low frequency moves to getting over low frequency, and the resonance peak of high frequency, to getting over high-frequency mobile, makes these resonance peak scopes all in the scope that ear can be heard, widen the resonance respective range of sound equipment, obtain desirable sound.First flexible member 23 and/or the second flexible member 29 can adopt elastic materials such as including but not limited to stainless steel, beryllium copper, plastic cement, PC, preferably, the thickness of the first flexible member 23 and/or the second flexible member 29 is 0.04mm ~ 0.20mm, more preferably, the thickness of the first flexible member 23 and/or the second flexible member 29 is 0.08mm ~ 0.12mm.Preferably, first flexible member 23 is an elastic plate, can be set to have torus and the first cylindrical ring body in first, in first, torus is positioned at the center of the first cylindrical ring body, can be provided with the first pole being no less than to center in this first cylindrical ring body, in first, torus center can be provided with the first location hole converge like the spokes of a wheel at the hubly; Preferably, second flexible member 29 is an elastic plate, can be set to have torus and the second cylindrical ring body in second, in second, torus is positioned at the center of the second cylindrical ring body, can be provided with the second pole being no less than to center in this second cylindrical ring body, in second, torus center can be provided with the second location hole converge like the spokes of a wheel at the hubly.First pole can be identical with the number of the second pole, also can be different, and preferably, the number of the first pole and the second pole is for being more than or equal to two, and more preferably, the number of the first pole and the second pole is three.Preferably, pole is straight-bar; Preferably, the width of pole is not less than 0.2mm, and more preferably, the width of pole is 0.4mm ~ 1.5mm, and more preferably, the width of pole is 0.6mm ~ 1.0mm.
The first location hole in first flexible member 23 can match with the first location division 302 on oscillating plate 30, both adopt certain mode to be fixed together, above-mentioned connected mode can be physics mode, such as, engage, bolt and welding, also can be chemical mode, such as bond, preferably, adopt engaging or bonding mode affixed, more preferably, affixed mode is affixed with one heart; The second location hole in second flexible member 29 matches with the second location division 202 on the second magnetic conductor 20, both adopt certain mode to be fixed together, can be physics mode, such as, engage, bolt and welding, also can be chemical mode, such as bond, preferably, adopt engaging or bonding mode affixed, more preferably, affixed mode is affixed with one heart.In concrete installation process, first location division 302 of the center projection of oscillating plate 30, corresponding to recessed first location hole in the center of the first flexible member 23, during installation, the first location division 302 is inserted in the first location hole, realize oscillating plate 30 concentric affixed with the first flexible member 23; Second location division 202 of side 203 projection of the second magnetic conductor, corresponding to recessed second location hole in the center of the second flexible member 29, during installation, the second location division 202 is inserted in the second location hole, realize the second magnetic conductor 20 concentric affixed with the second flexible member 29.
When the bone-conduction speaker device of two location works, the magnetic systems be made up of the first magnetic conductor 24, magnet 27 and the second magnetic conductor 20 is generation current induction when voice coil loudspeaker voice coil 28 is energized, and then the magnetic field intensity of magnetic systems is changed, the parameters such as inductance also change thereupon, voice coil loudspeaker voice coil 28 is subject to the effect of Ampere force in magnetic field, thus makes to produce longitudinal back and forth movement between voice coil loudspeaker voice coil 28 and the first magnetic conductor 24, magnet 27, second magnetic conductor 20.Vibration passes to the first housing 26, second housing by oscillating plate 30, and by with the position that people's bone directly contacts, acoustical vibration is delivered to people's bone, thus allows people respond to sound by osteoacusis.Voice coil loudspeaker voice coil 28 is fixed on oscillating plate 30, make when speaker operation, the installation site of voice coil loudspeaker voice coil 28 can not offset, because the first magnetic conductor 24 is relative with the position between flexible member with the second magnetic conductor 20 fixing, also namely the installation site of magnetic gap is constant, and then ensure that the installation stability of voice coil loudspeaker voice coil 28, thus fundamentally ensure that the tonequality of loud speaker.
Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment four
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 17, the structure of its pair of location can be different from embodiment three.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil, oscillating plate and connector between magnet assembly and support portion.Support portion can comprise the first housing 38 and the second housing (not shown in FIG.), the first housing 38 can be fixedly installed an oscillating plate 36.Oscillating plate 36 can be fixedly installed a voice coil loudspeaker voice coil 37; The center of oscillating plate 36, can be provided with the step 361 of protrusion, at the center of step 361, can be provided with the first location division 362 of protrusion.Magnet assembly can comprise the first magnetic conductor 35, second magnetic conductor 31 and magnet 32, the center of the second magnetic conductor 31 can determine whether to arrange the periphery with a stage portion and recess 311, second magnetic conductor 31 as required can the upwards extended side 312 having a protrusion.Positioning component can comprise the first flexible member 34 and the second flexible member 39.A connection piece 33 can be set at the second magnetic conductor side 312 and the first flexible member 34 junction, the second magnetic conductor 31 and the first flexible member 34 are linked together.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment three with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With in embodiment three, second location division 202 is arranged on side 203 unlike, in the present embodiment, the second location division 331 is arranged on the outside of connector 33.In the outside of connector 33, the direction being provided with the second location division 331, location division 331, second extension is the diametric(al) of connector 33, away from oscillating plate 36, is positioned the second magnetic conductor 31 by the second location division 331.Second flexible member 39 and and the first housing 38 between certain mode can be adopted to connect as one, can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, between the second flexible member 39 and the first housing 38, adopt bonding way to connect as one.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment three.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment five
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 18, the structure of its pair of location can be different from embodiment three.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil, oscillating plate and connector between magnet assembly and support portion.Support portion can comprise the first housing 40 and the second housing (not shown in FIG.), the first housing 38 can be fixedly installed an oscillating plate 41.Oscillating plate 41 can be fixedly installed a voice coil loudspeaker voice coil 44; The center of oscillating plate 41, can be provided with the step 411 of protrusion, at the center of step 411, can be provided with the first location division 412 of protrusion, be positioned by the first location division 412 to the second magnetic conductor 45.Magnet assembly can comprise the first magnetic conductor 43, second magnetic conductor 45 and magnet 42, the center of the second magnetic conductor 45 can determine whether to arrange the periphery with a stage portion and recess 311, second magnetic conductor 45 as required can the upwards extended side 451 having a protrusion.A connection piece 47 can be set at the second magnetic conductor side 451 and the first flexible member 46 junction, the second magnetic conductor 45 and the first flexible member 46 are linked together.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment three with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With the double locating structure disclosed in embodiment three unlike, in the present embodiment, positioning component only comprises the first flexible member 46, there is no the second flexible member, the external diameter of the first flexible member 46, i.e. the external diameter of the first cylindrical ring body, be less than the external diameter of the first housing 40, be greater than the internal diameter of the first housing 40.First flexible member 46, first location division 412, connector 47 and the first housing 40 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, the first flexible member 46, first location division 412, adopt bonding way to connect as one between connector 47 and the first housing 40.By the extension of the first flexible member 46 length, the first flexible member 46 is made to be fixed on the first location division 412, connector 47 and the first housing 40, be connected in the heart with magnetic circuit, be connected with shell simultaneously, thus the double positioning structure constituted magnetic circuit, effectively avoid magnetic circuit to deflect because of gravity.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment three.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment six
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 19, the structure of its pair of location can be different from embodiment three.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil, oscillating plate between magnet assembly and support portion.Support portion can comprise the first housing 56 and the second housing (not shown in FIG.), the first housing 56 can be fixedly installed an oscillating plate 55.Oscillating plate 55 can be fixedly installed a voice coil loudspeaker voice coil 49; The center of oscillating plate 55, can be provided with the step 551 of protrusion, at the center of step 551, can be provided with the first location division 552 of protrusion, be positioned by 552 pairs, the first location division voice coil loudspeaker voice coil 49.Magnet assembly can comprise the first magnetic conductor 54, second magnetic conductor 50 and magnet 53, the center of the second magnetic conductor 53 can determine whether to arrange the periphery with a stage portion and recess 311, second magnetic conductor 31 as required can the upwards extended side 312 having a protrusion.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment three with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With in embodiment three, second location division 202 is arranged on side 203 unlike, in the present embodiment, the second location division 503 is arranged on bottom magnetic circuit.At the center of the second magnetic conductor 50, be provided with the step 502 of protrusion, the direction that step 502 extends is away from magnet 53 and the first magnetic conductor 54, to form oscillation space by step 502 between the second magnetic conductor 50 and the second flexible member 58, ensure that the second flexible member 58 can not produce noise while the second magnetic conductor 50 can be driven to vibrate.Be provided with the second location division 503 of protrusion at step 502 center, the direction that this second location division 503 extends is away from magnet 53 and the first magnetic conductor 54, to be positioned the second magnetic conductor 50 by the second location division 503.
In addition, with the double locating structure disclosed in embodiment three unlike, in the present embodiment, double locating structure not only can comprise the first flexible member 48, second flexible member 58, the 3rd flexible member 57 can also be comprised, and do not comprise the connector the second magnetic conductor side 501 and the first flexible member 48 coupled together.The external diameter of the first flexible member 48, the i.e. external diameter of the first cylindrical ring body, be less than the external diameter of the first housing 56, is greater than the internal diameter of the first housing 56.First flexible member 48, first location division 552 and the first housing 56 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the first flexible member 48, first location division 552 and the first housing 56.The external diameter of the second flexible member 58, the i.e. external diameter of the second cylindrical ring body, be less than the external diameter of the first housing 56, is greater than the internal diameter of the first housing 56.Second flexible member 58, second location division 503 and the first housing 56 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the second flexible member 58, second location division 503 and the first housing 56.The material of the 3rd flexible member 57, structure, shape, thickness are identical with the second flexible member information with the first flexible member disclosed in embodiment three, preferably, 3rd flexible member 57 is an elastic plate, can be set to have torus and the 3rd cylindrical ring body in the 3rd, in 3rd, torus is positioned at the center of the 3rd cylindrical ring body, can be provided with the 3rd pole being no less than in the 3rd cylindrical ring body to center converge like the spokes of a wheel at the hubly.The external diameter of the 3rd flexible member 57, the i.e. external diameter of the 3rd cylindrical ring body, be less than the external diameter of the first housing 56, is greater than the internal diameter of the first housing 56; The internal diameter of the 3rd flexible member 57, namely toric internal diameter in the 3rd, is less than the external diameter of the second magnetic conductor side 501, is greater than the internal diameter of the second magnetic conductor side 501.3rd flexible member 57, second magnetic conductor side 501 and the first housing 56 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the 3rd flexible member 57, second magnetic conductor side 501 and the first housing 56.Thus the second magnetic conductor 50 is connected by the 3rd flexible member 57 with the first housing 56, meanwhile, the extension of the first flexible member 48 length, makes the first flexible member 48 be fixed on the first housing 56, avoids the use of connector.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment three.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment seven
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 20, the structure of its pair of location can be different from embodiment three.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil, oscillating plate between magnet assembly and support portion.Support portion can comprise the first housing 63 and the second housing (not shown in FIG.), the first housing 63 can be fixedly installed an oscillating plate 60.Oscillating plate 60 can be fixedly installed a voice coil loudspeaker voice coil 59; The center of oscillating plate 60, can be provided with the step 601 of protrusion, at the center of step 601, can be provided with the first location division 602 of protrusion, be positioned by 602 pairs, the first location division voice coil loudspeaker voice coil 59.Magnet assembly can comprise the first magnetic conductor 61, second magnetic conductor 67 and magnet 62, whether the center of the second magnetic conductor 61 can determine to arrange as required has a stage portion and recess 311, the periphery of the second magnetic conductor 31 can the upwards extended side 312 having a protrusion, on side 312, be provided with the second location division 672, the direction that second location division 672 extends is the diametric(al) of side 671, away from magnet 62, is positioned the second magnetic conductor 67 by the second location division 672.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment three with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With the double locating structure disclosed in embodiment three unlike, in the present embodiment, double locating structure not only can comprise the first flexible member 64, second flexible member 65, the 3rd flexible member 66 can also be comprised, and do not comprise the connector the second magnetic conductor side 671 and the first flexible member 64 coupled together.The external diameter of the first flexible member 64, the i.e. external diameter of the first cylindrical ring body, be less than the external diameter of the first housing 63, is greater than the internal diameter of the first housing 63.First flexible member 64, first location division 602 and the first housing 63 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the first flexible member 64, first location division 602 and the first housing 63.The external diameter of the second flexible member 65, the i.e. external diameter of the second cylindrical ring body, be less than the external diameter of the first housing 63, is greater than the internal diameter of the first housing 63.Second flexible member 65, second location division 672 and the first housing 63 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the second flexible member 65, second location division 672 and the first housing 63.The material of the 3rd flexible member 66, structure, shape, thickness are identical with the second flexible member information with the first flexible member disclosed in embodiment three, preferably, 3rd flexible member 66 is an elastic plate, can be set to have torus and the 3rd cylindrical ring body in the 3rd, in 3rd, torus is positioned at the center of the 3rd cylindrical ring body, can be provided with the 3rd pole being no less than in the 3rd cylindrical ring body to center converge like the spokes of a wheel at the hubly.The external diameter of the 3rd flexible member 66, the i.e. external diameter of the 3rd cylindrical ring body, be less than the external diameter of the first housing 63, is greater than the internal diameter of the first housing 63; The internal diameter of the 3rd flexible member 66, namely toric internal diameter in the 3rd, is less than the external diameter of the second magnetic conductor side 671, is greater than the internal diameter of the second magnetic conductor side 671.3rd flexible member 66, second magnetic conductor side 671 and the first housing 63 can adopt certain mode to connect as one, it can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, bonding way is adopted to connect as one between the 3rd flexible member 66, second magnetic conductor side 671 and the first housing 63.Thus the second magnetic conductor 67 is connected by the 3rd flexible member 66 with the first housing 63, meanwhile, the extension of the first flexible member 64 length, makes the first flexible member 64 be fixed on the first housing 63, avoids the use of connector.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment three.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment eight
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 21, the structure of its pair of location can be different from embodiment six.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil between magnet assembly and support portion.Support portion can comprise the first housing 74 and the second housing (not shown in FIG.).Magnet assembly can comprise the first magnetic conductor 69, second magnetic conductor 77 and magnet 68.Whether the center of the second magnetic conductor 77 can determine to arrange as required has a stage portion and recess, at the center of the second magnetic conductor 77, be provided with the step 772 of protrusion, the first location division 773 of protrusion is provided with at step 772 center, the direction that this first location division 773 extends is away from magnet 68 and the first magnetic conductor 69, to be positioned the second magnetic conductor 77 by the first location division 773, the periphery of the second magnetic conductor 77 can the upwards extended side 771 having a protrusion.Positioning component can comprise the first flexible member 75, second flexible member 76 and the 3rd flexible member 78.The external diameter of the first flexible member 48, the i.e. external diameter of the first cylindrical ring body, be less than the external diameter of the first housing 74, is greater than the internal diameter of the first housing 74, and the first housing 74 adopts certain mode to connect as one; The external diameter of the second flexible member 76, the i.e. external diameter of the second cylindrical ring body, be less than the external diameter of the first housing 74, is greater than the internal diameter of the first housing 74, and the first location division 773, first housing 74 adopts certain mode to connect as one; The external diameter of the 3rd flexible member 78, the i.e. external diameter of the 3rd cylindrical ring body, be less than the external diameter of the first housing 74, be greater than the internal diameter of the first housing 74, the internal diameter of the 3rd flexible member 78, namely toric internal diameter in the 3rd, is less than the external diameter of the second magnetic conductor side 771, be greater than the internal diameter of the second magnetic conductor side 771, and the second magnetic conductor side 771, first housing 74 adopts certain mode to connect as one.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment six with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With the double locating structure disclosed in embodiment six unlike, in the present embodiment, double locating structure do not comprise be fixedly installed voice coil loudspeaker voice coil 70 oscillating plate and oscillating plate on location division, but voice coil loudspeaker voice coil 70 is fixedly installed on the upper surface of the first flexible member 75.Voice coil loudspeaker voice coil 70 and the first flexible member 75 can adopt certain mode to connect as one, and can be physics modes, such as clamping and welding, also can be chemical mode, such as bond, preferably, between voice coil loudspeaker voice coil 70 and the first flexible member 75, adopt bonding way to connect as one.Voice coil loudspeaker voice coil 70 continues to downward-extension from the upper surface of the first flexible member 75, and in the magnetic gap that formed of the circumferential lateral edge 771 being in the first magnetic conductor 69 and the second magnetic conductor.When tone currents is by voice coil loudspeaker voice coil 70, make voice coil loudspeaker voice coil 70 produce the alternating current changed with audio frequency, cutting magnetic line produces mechanical oscillation, drives vibrational system that longitudinal back and forth movement occurs.Vibration passes to the first housing 74, second housing by the first flexible member 75, and by with the position that people's bone directly contacts, acoustical vibration is delivered to people's bone, thus allows people respond to sound by osteoacusis.Because flexible member drives magnet assembly vibration, distance straight between the upper surface of the first flexible member 75 lower surface and the 3rd flexible member 78 can ensure to form oscillation space size between magnet assembly and flexible member, preferably, distance straight between the upper surface of the first flexible member 75 lower surface and the 3rd flexible member 78 is greater than the maximum sum that the first flexible member 75 and the 3rd flexible member 78 are parallel to the deformation of axis of symmetry direction, to avoid the first flexible member 75 and the 3rd flexible member 78 in motion process to contact with each other, form noise.By being fixedly installed the first flexible member 75 on housing, again voice coil loudspeaker voice coil 70 is fixed on the upper surface of the first flexible member 75, make when speaker operation, the installation site of voice coil loudspeaker voice coil 70 can not offset, because the first magnetic conductor 69 is relative with the position between flexible member with the second magnetic conductor 77 fixing, also namely the installation site of magnetic gap is constant, and then ensure that the installation stability of voice coil loudspeaker voice coil, thus fundamentally ensure that the tonequality of loud speaker.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment three.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment nine
Be a kind of structural representation of bone-conduction speaker device of two location as shown in figure 22, the structure of its pair of location can be different from embodiment eight.
In the present embodiment, the bone-conduction speaker device of two location can comprise magnet assembly, support portion, be located at elastic positioning member, voice coil loudspeaker voice coil between magnet assembly and support portion.Support portion can comprise the first housing 86 and the second housing (not shown in FIG.).Magnet assembly can comprise the first magnetic conductor 83, second magnetic conductor 85 and magnet 84.Whether the center of the second magnetic conductor 85 can determine to arrange as required has a stage portion and recess, and the periphery of the second magnetic conductor 85 can the upwards extended side 851 having a protrusion.Positioning component can comprise the first flexible member 88, second flexible member 79 and the 3rd flexible member 87.The external diameter of the first flexible member 88, the i.e. external diameter of the first cylindrical ring body, be less than the external diameter of the first housing 86, is greater than the internal diameter of the first housing 86, and the first housing 86 adopts certain mode to connect as one; The external diameter of the second flexible member 76, the i.e. external diameter of the second cylindrical ring body, be less than the external diameter of the first housing 86, is greater than the internal diameter of the first housing 86, and the first housing 86 adopts certain mode to connect as one; The external diameter of the 3rd flexible member 87, the i.e. external diameter of the 3rd cylindrical ring body, be less than the external diameter of the first housing 86, be greater than the internal diameter of the first housing 86, the internal diameter of the 3rd flexible member 87, namely toric internal diameter in the 3rd, is less than the external diameter of the second magnetic conductor side 851, be greater than the internal diameter of the second magnetic conductor side 851, and the second magnetic conductor side 851, first housing 86 adopts certain mode to connect as one.Voice coil loudspeaker voice coil 80 is fixedly installed on the upper surface of the first flexible member 88, and voice coil loudspeaker voice coil 80 and the first flexible member 88 can adopt certain mode to connect as one.
Connected mode between the shape of above all parts, size, structure, material and all parts is identical with the information disclosed in embodiment eight with affixed mode.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
With in embodiment eight, first location division 773 is arranged on the second magnetic conductor 77 center unlike, in the present embodiment, the first location division 852 is arranged on the outside of the second magnetic conductor side 851.In the outside of the second magnetic conductor side 851, the direction being provided with the first location division 852, location division 852, first extension is the diametric(al) of side 851, away from voice coil loudspeaker voice coil 80, is positioned the second magnetic conductor 85 by the first location division 852.Second flexible member 79 and and the first housing 86 between certain mode can be adopted to connect as one, can be physics mode, such as clamping and welding, also can be chemical mode, such as bond, preferably, between the second flexible member 85 and the first housing 86, adopt bonding way to connect as one.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment three.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
embodiment ten
In this enforcement, for the bone-conduction speaker device structure of a kind of two location described in embodiment two, use the method for finite element simulation, compared for application double locating structure and effect is strengthened to magnetic flux density in magnetic gap.Figure 23 is depicted as under different magnetic gap, the Magnetic Induction Density Distribution on coil.From the result of emulation, when magnet characteristic is constant, after arranging double locating structure, Tu15Zhong, the magnetic flux density at voice coil loudspeaker voice coil 14 place enhances at least 20%.
Further, on this basis, for the bone-conduction speaker device structure of a kind of two location described in embodiment two, finite element simulation is carried out to the frequency response of vibrating speaker.Relative to the vibrating speaker not increasing double locating structure, the vibrating speaker of a kind of double locating structure of the disclosure in embodiment two, described first flexible member 12 shown in Figure 15 and the second flexible member 18 can when stiffness factor reduce, and the two obvious deflection does not occur simultaneously.Be FEM Numerical Simulation as shown in figure 24, wherein the first flexible member 12 of the vibrating speaker of double locating structure and the stiffness factor of the second flexible member 18 are without using 1/10th of double locating structure vibrating speaker.After adding double positioner, because magnetic gap reduces, magnetic flux density increases, and the sensitivity of vibrating speaker adds 8-10dB, means that vibrating speaker has higher efficiency.Meanwhile, frequency response curve has obvious lifting in medium and low frequency section, and frequency response is more smooth, shows that vibrating speaker has better tonequality.
The situation when bone-conduction speaker device of two location works is identical with the information disclosed in embodiment one.Above description is only specific embodiments of the invention, and the scope that this patent is protected is not limited in performance described above.For those of ordinary skills, can when not paying creative work, do some to performance described above and revise and variation, these are revised and variation is also belong to the scope that the present invention protects.
Claims (13)
1. a bone-conduction speaker device for two locate mode, it is characterized in that, described bone-conduction speaker device comprises:
Support portion;
Magnet assembly, described magnet assembly at least comprises a magnetic part;
Positioning component, described positioning component at least comprises two flexible members;
Described magnet assembly and described positioning component are all arranged on described support portion;
Two described flexible members are connected with described magnet assembly respectively;
Position between described magnet assembly with described support portion keeps relative fixing.
2. bone-conduction speaker device according to claim 1, is characterized in that,
Described magnet assembly at least comprises the first magnetic part (5,16) and the second magnetic part (7,17), and described first magnetic part (5,16) is magnetic conductor or magnet, and described second magnetic part (7,17) is magnetic conductor or magnet;
There is between described first magnetic part (5,16) and described second magnetic part (7,17) magnetic gap (10,15).
3. bone-conduction speaker device according to claim 2, is characterized in that,
Described positioning component comprises the first flexible member (2,12) and the second flexible member (8,18);
On the bearing of trend of described first flexible member (2,12), described first flexible member (2,12) makes the first magnetic part (5,16) keep relative fixing with the position between described support portion;
On the bearing of trend of described second flexible member (8,18), described second flexible member (8,18) makes the second magnetic part (7,17) keep relative fixing with the position between described support portion.
4. bone-conduction speaker device according to claim 3, is characterized in that,
The bearing of trend of described first flexible member (2,12) is parallel with the bearing of trend of described second flexible member (8,18);
Described magnet assembly has the axis of symmetry, and the axis direction of described magnet assembly is all vertical with the bearing of trend of the bearing of trend of described first flexible member (2,12), described second flexible member (8,18).
5. bone-conduction speaker device according to claim 4, is characterized in that,
Described support portion comprises the first housing (1,11) and the second housing (9,19);
Described first housing (1,11) and the second housing (9,19) form the spatial accommodation being used for housing magnetic components, positioning component;
Further,
On the bearing of trend of described first flexible member (2,12), described first flexible member (2,12) makes the position between the first magnetic part (5,16) with described first housing (1,11) keep relative fixing;
On the bearing of trend of described second flexible member (8,18), described second flexible member (8,18) makes the position between the second magnetic part (7,17) with described second housing (9,19) keep relative fixing.
6. bone-conduction speaker device according to claim 5, is characterized in that,
Described first magnetic part (5,16) is provided with first step (51,161), to form oscillation space by first step (51,161) between the first magnetic part (5,16) and the first flexible member (2,12);
Described second magnetic part (7,17) is provided with second step (71,171), to form oscillation space by second step (71,171) between the second magnetic part (7,17) and the second flexible member (8,18);
Described first step (51,161) arranges the first location division (52,162) away from the side of described second magnetic part (7,17);
Described second step (71,171) arranges the second location division (72,172) away from the side of described first magnetic part (5,16);
Described first flexible member (2,12) is provided with the first location hole (21,121) matched with described first location division (52,162), described second flexible member (8,18) is provided with the second location hole (81,181) matched with described second location division (72,172).
7. bone-conduction speaker device according to claim 6, is characterized in that,
Described second magnetic part (7,17) has the annular sidewall (73,173) extended to described first magnetic part (5,16) direction, between described annular sidewall (73,173) and described first magnetic part (5,16), form described magnetic gap (10,15).
8. bone-conduction speaker device according to claim 6, is characterized in that,
Also comprise voice coil loudspeaker voice coil (4,14), in the magnetic gap (10,15) being arranged between described first magnetic part (5,16) and described second magnetic part (7,17) at least partially of described voice coil loudspeaker voice coil (4,14).
9. bone-conduction speaker device according to claim 8, is characterized in that,
Packing ring (3,13) is provided with between the first housing (1,11) and the second housing (9,19), described packing ring (3,13) is ring washer, and described voice coil loudspeaker voice coil (4,14) is fixed on described packing ring (3,13).
10. bone-conduction speaker device according to claim 9, is characterized in that,
Described first flexible member (2,12) and described second flexible member (8,18) lay respectively at the both sides of described first magnetic part (5,16) and the second magnetic part (7,17),
And described first flexible member (2,12) is all fixedly connected with described first magnetic part (5,16) with described packing ring (3,13), described second flexible member (8,18) is all fixedly connected with described second magnetic part (7,17) with described second housing (9,19).
11. bone-conduction speaker devices according to claim 10, is characterized in that,
Described first flexible member (2,12) comprises torus and the first cylindrical ring body in first, in described first, evenly arrange at least two the first poles (22,122) between torus and described first cylindrical ring body;
And/or,
Described second flexible member (8,18) comprises torus and the second cylindrical ring body in second, in described second, evenly arrange at least two the second poles (82,182) between torus and described second cylindrical ring body.
12. bone-conduction speaker devices according to claim 11, is characterized in that,
The first location hole (21,121) is provided with in torus in described first; The second location hole (81,181) is provided with in torus in described second; And/or
Converge like the spokes of a wheel at the hubly to center between torus and described first cylindrical ring body in described first arrange described first pole, described first pole is preferably straight-bar;
Converge like the spokes of a wheel at the hubly to center between torus and described second cylindrical ring body in described second arrange described second pole, described second pole is preferably straight-bar.
13. bone-conduction speaker devices according to claim 12, is characterized in that,
The center of the first flexible member (2,12) engages with first location division (52,162) of the first magnetic part (5,16) and/or bonding; And/or
The upper surface of the periphery lower surface bonds packing ring (3,13) of the first flexible member (2,12);
The center of the second flexible member (8,18) engages with second location division (72,172) of the second magnetic part (7,17) and/or bonding; And/or
The periphery of the second flexible member (8,18) is fixed on the second housing (9,19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864676.XA CN105472511B (en) | 2014-12-01 | 2015-12-01 | A kind of bone-conduction speaker device of pair of positioning formula |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014107114412 | 2014-12-01 | ||
| CN201410711441 | 2014-12-01 | ||
| CN201510864676.XA CN105472511B (en) | 2014-12-01 | 2015-12-01 | A kind of bone-conduction speaker device of pair of positioning formula |
Publications (2)
| Publication Number | Publication Date |
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| CN105472511A true CN105472511A (en) | 2016-04-06 |
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| CN108184196A (en) * | 2018-01-08 | 2018-06-19 | 深圳市韶音科技有限公司 | A kind of bone-conduction speaker |
| CN109547889A (en) * | 2019-01-05 | 2019-03-29 | 深圳市韶音科技有限公司 | Magnetic connector and osteoacusis loudspeaker arrangement |
| CN110708646A (en) * | 2019-09-30 | 2020-01-17 | 东莞市赞歌声学科技有限公司 | Bone conduction speakers, bone conduction earphones and bone conduction hearing aids |
| CN111163394A (en) * | 2019-12-30 | 2020-05-15 | 歌尔科技有限公司 | Bone conduction acoustic device |
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| JP2021527365A (en) * | 2018-06-15 | 2021-10-11 | 深▲セン▼市韶音科技有限公司 | Bone conduction speaker and its test method |
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