CN207783125U

CN207783125U - A kind of bone-conduction speaker

Info

Publication number: CN207783125U
Application number: CN201820027297.4U
Authority: CN
Inventors: 张磊; 廖风云; 齐心
Original assignee: Shenzhen Voxtech Co Ltd
Current assignee: Shenzhen Voxtech Co Ltd
Priority date: 2018-01-08
Filing date: 2018-01-08
Publication date: 2018-08-28
Anticipated expiration: 2028-01-08

Abstract

The utility model is related to a kind of magnetic circuit components of bone-conduction speaker.The magnetic circuit component generates the first full field.The magnetic circuit component includes the first magnetic element, the first magnetic conductive component and the second magnetic conductive component.First magnetic element generates the second magnetic field.At least partly described second magnetic conductive component forms magnetic gap around first magnetic element between first magnetic element.The magnetic circuit component further includes at least one second magnetic element.At least one second magnetic element connects first magnetic conductive component upper surface.Magnetic field intensity of first full field in the magnetic gap is more than magnetic field intensity of second magnetic field in the magnetic gap.

Description

A kind of bone-conduction speaker

Technical field

The utility model is related to the magnetic circuit components in a kind of bone-conduction speaker more particularly to bone-conduction speaker.

Background technology

Bone-conduction speaker can convert the electrical signal to mechanical oscillation signal, and vibration signal is passed through tissue and bone Head is conducted into cochlea, and user is made to hear sound.Air vibration is driven to generate sound by vibrating diaphragm relative to gas conduction speaker, Osteoacusis vibrating speaker need drive user soft tissue and bone vibrate, thus its required mechanical output compared with It is high.Improving the sensitivity of bone-conduction speaker can make electric energy be converted into the more efficient of mechanical energy, to export the machine of bigger Tool power.Improve sensitivity seems even more important for the higher bone-conduction speaker of power requirement.

Utility model content

The utility model is the magnetic circuit component about a kind of bone-conduction speaker.The magnetic circuit component generates the first full field, The magnetic circuit component may include the first magnetic element, which generates the second magnetic field；First magnetic conductive component；

Second magnetic conductive component, at least part of second magnetic conductive component around first magnetic element, and with first magnetic Magnetic gap is formed between property element；And at least one second magnetic element, at least one second magnetic element connect this One magnetic conductive component upper surface, the magnetic field intensity of first full field in the magnetic gap are more than second magnetic field in the magnetic gap Magnetic field intensity.

Some embodiments according to the present utility model, the magnetic circuit component may further include the magnetic member of at least one third Part, at least one third magnetic element is around at least one second magnetic element.

Some embodiments according to the present utility model, the magnetic circuit component may further include at least one 4th magnetic member Part, at least one 4th magnetic element connect second magnetic conductive component and at least one third magnetic element.

Some embodiments according to the present utility model, the magnetic circuit component may further include at least one 5th magnetic member Part, at least one 5th magnetic element are located at the lower section of the magnetic gap and connect first magnetic element and second magnetic conduction Element.

Some embodiments according to the present utility model, the magnetic circuit component may further include third magnetic conductive component, this Three magnetic conductive components connect at least one second magnetic element.

A part of bells and whistles of the utility model can illustrate in the following description.By to being described below and The understanding of the inspection of respective drawings or production or operation to embodiment, a part of bells and whistles of the utility model are for this The technical staff in field is apparent.The characteristic that the utility model discloses can be by each of specific embodiments described below The practice or use of kind method, means and combination are achieved and reach.

Attached drawing describes

Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model It limits.In the various figures, identical label indicates same parts.

Fig. 1 is a kind of structure mould block diagram of bone-conduction speaker shown in some embodiments according to the present utility model；

Fig. 2 is a kind of Longitudinal cross section schematic of bone-conduction speaker shown in some embodiments according to the present utility model；

Fig. 3 A are a kind of Longitudinal cross section schematics of magnetic circuit component shown in some embodiments according to the present utility model；

Fig. 3 B are a kind of Longitudinal cross section schematics of magnetic circuit component shown in some embodiments according to the present utility model；

Fig. 3 C are a kind of Longitudinal cross section schematics of magnetic circuit component shown in some embodiments according to the present utility model；

Fig. 3 D are a kind of Longitudinal cross section schematics of magnetic circuit component shown in some embodiments according to the present utility model；

Fig. 3 E are a kind of Longitudinal cross section schematics of magnetic circuit component shown in some embodiments according to the present utility model；

Fig. 3 F are a kind of Longitudinal cross section schematics of magnetic circuit component shown in some embodiments according to the present utility model；

Fig. 4 A are a kind of cross-sectional views of magnetic element shown in some embodiments according to the present utility model；

Fig. 4 B are a kind of schematic diagrames of magnetic element shown in some embodiments according to the present utility model；

Fig. 4 C are that the direction of magnetization of magnetic element in magnetic circuit component shown in some embodiments according to the present utility model is shown It is intended to；

Fig. 4 D are the line of magnetic inductions point of magnetic element in magnet assembly shown in some embodiments according to the present utility model Butut；

Fig. 5 is a kind of structural schematic diagram of bone-conduction speaker shown in some embodiments according to the present utility model；

Fig. 6 is a kind of structural schematic diagram of bone-conduction speaker shown in some embodiments according to the present utility model.

It specifically describes

It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the embodiments of the present invention Attached drawing to be used is briefly described.Show it should be evident that the accompanying drawings in the following description is only some of the utility model Example or embodiment, for those of ordinary skill in the art for, without creative efforts, can also basis The utility model is applied to other similar to scene by these attached drawings.It should be appreciated that it is only to be to provide these exemplary embodiments So that those skilled in the relevant art is better understood when and then realize the utility model, and not in any way limitation this The range of utility model.Unless apparent from language environment or separately explain, in figure identical label represent identical structure or Operation.

As shown in the utility model and claims, unless context clearly prompts exceptional situation, " one ", " one It is a ", the words such as "an" and/or "the" not refer in particular to odd number, may also comprise plural number.It is, in general, that term " comprising " and "comprising" Only prompt include the steps that clearly identified and element, and these steps and element do not constitute one it is exclusive enumerate, method Or equipment may also include other the step of or element.Term "based" is " being based at least partially on ".A term " implementation Example " expression " at least one embodiment "；Term " another embodiment " expression " at least one other embodiment ".Other terms Related definition provides in will be described below.Hereinafter, without loss of generality, the osteoacusis the relevant technologies in describing the utility model When, the description of " bone-conduction speaker " or " bone conduction earphone " will be used.The description is only a kind of form of osteoacusis application, For one of ordinary skill in the field, " loud speaker " or " earphone " can also be replaced with other similar words, for example " be played Device ", " hearing aid " etc..In fact, the various realization methods in the utility model can easily be applied to other non-raise one's voice On the hearing device of device class.For example, for those skilled in the art, in the basic principle for understanding bone-conduction speaker Afterwards, may without departing substantially from this principle, concrete mode and step to implementing bone-conduction speaker carry out form and Particularly ambient sound pickup and processing function are added in bone-conduction speaker, makes this for various modifications and variations in details Loud speaker realizes the function of hearing aid.For example, the microphones such as microphone can pick up the sound of user/wearer's ambient enviroment (or the electric signal generated) after acoustic processing is sent to bone-conduction speaker part by sound under certain algorithm.I.e. bone passes Certain modification can be passed through by leading loud speaker, the function of picking up surrounding sounds be added, and pass through after certain signal processing Sound is passed to user/wearer by bone-conduction speaker part, to realize the function of ossiphone.As act Example, algorithm mentioned here may include noise elimination, automatic growth control, acoustic feedback inhibition, wide dynamic range compression, active Context awareness, active anti-noise, directional process, tinnitus processing, multi-channel wide dynamic range compression, active chauvent's criterion, volume control One or more combinations such as system.

The utility model provides a kind of bone-conduction speaker of high sensitivity.In some embodiments, the osteoacusis is raised Sound device may include magnetic circuit component.The magnetic circuit component can generate the first full field.The magnetic circuit component may include first Magnetic element, the first magnetic conductive component, the second magnetic conductive component and one or more second magnetic elements.First magnetic element The second magnetic field can be generated, one or more of second magnetic elements are around first magnetic element, and with described first Magnetic gap is formed between magnetic element, magnetic field intensity of first full field in the magnetic gap is more than second magnetic field Magnetic field intensity in the magnetic gap.Multiple second magnetic elements in the magnetic circuit component are around first magnetic element Magnetic circuit component can be reduced in the case where improving magnetic gap magnetic field intensity, improving the sensitivity of bone-conduction speaker by being arranged Volume and weight improve the efficiency of bone-conduction speaker, increase the service life of bone-conduction speaker.

The bone-conduction speaker has the characteristics that small, light-weight, efficient, high sensitivity and service life are long, Convenient for the bone-conduction speaker to be combined with wearable intelligent equipment, to realize the multifunction of single equipment, improve And optimize user experience.The wearable intelligent equipment includes but not limited to intelligent earphone, intelligent glasses, intelligent head hoop, intelligence The helmet, smartwatch, Intelligent glove, intelligent shoe, intelligent camera, intelligent camera etc..The bone-conduction speaker can be into It is combined with intellectual material to one step, osteoacusis is integrated in the manufacture material of the clothes of user, gloves, cap, shoes etc. and is raised Sound device.The bone-conduction speaker can also further be implanted into human body, be implanted into chip with human body or external processor cooperates in fact Now more personalized function.

Fig. 1 is a kind of structure mould block diagram of bone-conduction speaker 100 shown in some embodiments according to the present utility model. As described in Figure, bone-conduction speaker 100 may include a magnetic circuit component 102,104, support components of a vibration component 106 and a storage assembly 108.

Magnetic circuit component 102 can provide magnetic field.The magnetic field, which can be used for converting the signal containing acoustic information to, to shake Dynamic signal.In some embodiments, the acoustic information may include the video with format, audio file or can To be converted into the data or file of sound by particular approach.The signal containing acoustic information may come from osteoacusis and raise The storage assembly 108 of sound device 100 itself can be from the information other than bone-conduction speaker 100 and generate, stores or pass Delivery system.The signal containing acoustic information may include that electric signal, optical signal, magnetic signal, mechanical signal etc. are a kind of or more The combination of kind.The signal containing acoustic information can come from a signal source or multiple signal sources.The multiple signal source Can correlation can not also be related.In some embodiments, bone-conduction speaker 100 can be obtained by various ways The acquisition of the signal containing acoustic information, the signal can be wired or wireless, can be real-time or delay. For example, bone-conduction speaker 100 can be by wired or wirelessly receive the electric signal containing acoustic information, it can also (for example, storage assembly 108) obtains data directly from storage medium, generates voice signal.In another example in ossiphone It may include the component with sound collection function, by picking up the sound in environment, the mechanical oscillation of sound be converted into electricity Signal obtains the electric signal for meeting particular requirement after being handled by amplifier.In some embodiments, the wired connection can be with Including metallic cable, optical cable or metal and optical compound cable, for example, coaxial cable, communication cable, soft electricity Cable, spiral cable, nonmetallic sheathed cable, sheath wire, multicore cable, twisted-pair cable, ribbon cable, shielding electricity One or more combination such as cable, communication cable, paired cable, twin-lead cable, twisted-pair feeder.Example described above is only made It is used for convenience of description, the medium of wired connection can also be other types, for example, the transmission of other electric signals or optical signal etc. Carrier.

Wireless connection may include radio communication, free space optical communication, acoustic communication and electromagnetic induction etc..Wherein without The communication of line electricity may include IEEE802.11 series standards, IEEE802.15 series standards (such as Bluetooth technology and purple-bee technology Deng), first generation mobile communication technology, Generation Mobile Telecommunication System technology (such as FDMA, TDMA, SDMA, CDMA and SSMA etc.), General packet radio service technology, 3rd generation mobile communication technology (such as CDMA2000, WCDMA, TD-SCDMA and WiMAX Deng), fourth generation mobile communication technology (such as TD-LTE and FDD-LTE etc.), satellite communication (such as GPS technology etc.), near field it is logical Believe (NFC) and other technologies for operating in ISM band (such as 2.4GHz etc.)；Free space optical communication may include visible light, Infra-red signal etc.；Acoustic communication may include sound wave, ultrasonic wave signal etc.；Electromagnetic induction may include near field communication technology etc.. Example described above is only as purposes of discussion is facilitated, and the medium of wireless connection can also be other types, for example, Z-wave skills Art, the civil radio frequency range of other charges and military radio frequency range etc..For example, the application scenes as this technology, Bone-conduction speaker 100 can obtain the signal containing acoustic information by Bluetooth technology from other equipment.

Vibration component 104 can generate mechanical oscillation.Along with the conversion of energy, osteoacusis raises one's voice for the generation of the vibration Device 100 can use specific magnetic circuit component 102 to realize that the signal containing acoustic information turns to mechanical oscillation with vibration component 104 It changes.May include coexisting and converting for a variety of different type energy during conversion.For example, electric signal can by transducing head To be directly changed into mechanical oscillation, sound is generated.For another example acoustic information may be embodied in optical signal, one kind is specifically changed Energy device may be implemented to be converted to the process of vibration signal by optical signal.It is other can be coexisted in the transducing head course of work and The energy of conversion includes thermal energy, magnetic field energy etc..The energy conversion regime of transducing head may include moving-coil type, it is electrostatic, Piezoelectric type, moving-iron type, pneumatic type, electromagnetic type etc..The frequency response range and sound quality of bone-conduction speaker 100 can be vibrated The influence of component 104.For example, in moving-coil type transducing head, vibration component 104 includes that the cylindrical coil of winding and one vibrate Body (for example, a vibrating reed) is driven vibrating body vibration sounding, vibrating body by the cylindrical coil that signal code drives in magnetic field The stretching, extension and contraction of material, the deformation of fold, size, shape and fixed form, the magnetic density etc. of permanent magnet can all pass bone The audio quality for leading loud speaker 100 brings prodigious influence.In vibration component 104 vibrating body can be mirror-symmetrical structure, Centrosymmetric structure or asymmetrical structure；It can be provided with intermittent cavernous structure on vibrating body, vibrating body is made to generate The displacement of bigger improves the output power of vibration and sound to allow bone-conduction speaker to realize higher sensitivity；Vibrating body Can be torus structure, multiple struts to center influx are set in torus, the number of strut can be two or More.

Support component 106 can play a supporting role to magnetic circuit component 102, vibration component 104 and/or storage assembly 108. Support component 106 may include one or more shells, one or more connectors.One or more of shells can be formed Accommodation space for accommodating magnetic circuit component 102, vibration component 104 and/or storage assembly 108.One or more of connections Part can connect shell and magnetic circuit component 102, vibration component 104 and/or storage assembly 108.

Storage assembly 108 can store the signal containing acoustic information.In some embodiments, storage assembly 108 can be with Including one or more storage devices.The storage device may include Direct Attached Storage (DirectAttached Storage), network attached storage (Network Attached Storage) and storage area network (Storage Area The storage device in storage systems such as Network).Storage device may include all kinds of storage devices such as solid storage device (Gu State hard disk, solid-state hybrid hard disk etc.), mechanical hard disk, USB flash memory, memory stick, storage card (such as CF, SD), other driving (such as CD, DVD, HD DVD, Blu-ray etc.), random access memory (RAM) and read-only memory (ROM).Wherein RAM may include ten into Counting tube, selectron, delay line storage, WILLIAMS-DARLING Ton pipe, dynamic RAM (DRAM), Static RAM (SRAM), thyristor random access memory (T-RAM) and zero capacitance random access memory (Z-RAM) etc.；ROM may include that magnetic bubble is deposited It is reservoir, A.O. linear memory, thin-film memory, magnetic plated wire memeory, magnetic core memory, magnetic drum memory, CD drive, hard Disk, tape, early stage NVRAM (nonvolatile storage), phase-change memory element, reluctance type random storage formula memory, ferroelectric random storage Memory, non-volatile SRAM, flash memory, the electronics formula of erasing can make carbon copies read-only memory, Erasable Programmable Read Only Memory EPROM, may be programmed Read-only memory, Mask ROM, floating connection door random access memory, nanometer random access memory, racing track memory, can Changing resistor type memory and programmable metallization unit etc..Above-mentioned storage device/storage unit is to list some examples Son, the storage device which can use are not limited thereto.

It is only above specific example to the description of bone-conduction speaker structure, is not considered as the reality of unique feasible Apply scheme.It, may be not after the basic principle for understanding bone-conduction speaker for one of skill in the art In the case of this principle, to implementing concrete mode and the step progress of bone-conduction speaker in form and details various Modifications and variations, but these modifications and variations are still within the scope of above description.For example, bone-conduction speaker 100 can be with Including one or more processors, the processor can execute one or more sound signal processing algorithms.The sound letter Number Processing Algorithm can be modified or strengthen to the voice signal.Such as voice signal progress noise reduction, acoustic feedback are inhibited, Wide dynamic range compression, automatic growth control, active Context awareness, active anti-noise, directional process, tinnitus processing, multi-channel wide Dynamic range compression, active chauvent's criterion, volume control or the processing of other similar or any of the above combination, these amendments With change still within the claims of the utility model.In another example bone-conduction speaker 100 may include one Or multiple sensors, such as temperature sensor, humidity sensor, velocity sensor, displacement sensor etc..The sensor can be with Acquire user information or environmental information.

Fig. 2 is a kind of longitudinal section signal of bone-conduction speaker 200 shown in some embodiments according to the present utility model Figure.As shown, bone-conduction speaker 200 may include the first magnetic element 202, the first magnetic conductive component 204, the second magnetic conduction member Part 206, the first oscillating plate 208, voice coil 210, the second oscillating plate 212 and vibration panel 214.

The magnetic element described in the present invention refers to the element that can generate magnetic field, such as magnet etc..The magnetic Property element can have the direction of magnetization, the direction of magnetization refers to the magnetic direction inside the magnetic element.First is magnetic Element 202 may include one or more magnet.In some embodiments, the magnet may include metal alloy magnet, iron Oxysome etc..Wherein, metal alloy magnet may include neodymium iron boron, SmCo, alnico, siderochrome cobalt, ferro-aluminum boron, iron carbon aluminium or class As or in which a variety of combinations.Ferrite may include barium ferrite, barium ferrite, U.S. Mn ferrite, lithium Mn ferrite, Or similar or in which multiple combinations.

The lower surface of first magnetic conductive component 204 can connect the upper surface of the first magnetic element 202.Second magnetic conductive component 206 can connect the first magnetic element 202.It should be noted that magnetizer mentioned here is referred to as field concentrator Or iron core.Magnetizer can adjust the distribution in magnetic field (for example, magnetic field that the first magnetic element 202 generates).The magnetizer can To include the element being process by soft magnetic materials.In some embodiments, the soft magnetic materials may include metal material, gold Belong to alloy, metal oxide materials, amorphous metal material etc., for example, iron, iron Si system alloy, iron aluminum series alloy, nickel iron-based alloy, Iron Co-based alloy, mild steel, silicon steel sheet, silicon steel sheet, ferrite etc..In some embodiments, can be added by casting, plasticity The method of one or more combinations such as work, machining, powder metallurgy processes the magnetizer.Casting may include sand mold casting Make, model casting, compression casting, centrifugal casting etc.；Plastic processing may include rolling, casting, forging, punching press, extruding, draw Etc. one or more combinations；Machining may include turning, milling, planing, grinding etc..In some embodiments, described to lead The processing method of magnet may include 3D printing, numerically-controlled machine tool etc..First magnetic conductive component 204, the second magnetic conductive component 206 and first Connection type between magnetic element 202 may include being bonded, being clamped, welding, riveting, being bolted etc. one or more groups It closes.In some embodiments, the first magnetic element 202, the first magnetic conductive component 204 and the second magnetic conductive component 206 could be provided as Axially symmetric structure.The axially symmetric structure can be cyclic structure, column structure or it is other have axially symmetric structure.

In some embodiments, magnetic gap can be formed between the first magnetic element 202 and the second magnetic conductive component 206.Sound Circle 210 can be set in the magnetic gap.Voice coil 210 can be connect with the first oscillating plate 208.First oscillating plate 208 can be with The second oscillating plate 212 is connected, the second oscillating plate 212 can connect vibration panel 214.After being passed through electric current in the voice coil 210, The voice coil 210 is located in the magnetic field that the first magnetic element 202, the first magnetic conductive component 214 and the second magnetic conductive component 206 are formed, Can be by ampere force effect, the ampere power drive voice coil 210 vibrates, the vibration of voice coil 210 can drive the first oscillating plate 208, The vibration of second oscillating plate 212 and vibration panel 214.The vibration is transmitted to by tissue with bone by vibration panel 214 to be listened Nerve is felt, to make one to hear sound.It the vibration panel 214 and can be directly in direct contact with human skin, or can To pass through the vibration transfer layer and skin contact that are made of certain material.

In some embodiments, for the bone-conduction speaker with single magnetic element, pass through the magnetic induction line at voice coil And it is uneven, it is in divergent shape.Leakage field may be formed in magnetic circuit simultaneously, i.e., more magnetic induction line leaks to other than magnetic gap, not Voice coil can be passed through, so that the magnetic induction intensity (or magnetic field intensity) at voice coil position declines, influences bone-conduction speaker Sensitivity.Therefore, bone-conduction speaker 200 may further include at least one second magnetic element and/at least one third Magnetic conductive component (not shown).At least one second magnetic element and/at least one third magnetic conductive component can inhibit magnetic Feel the leakage of line, constrain the magnetic strength line morphology across voice coil so that more magnetic induction line is horizontal as possible densely to pass through voice coil, increases Magnetic induction intensity (or magnetic field intensity) at strong voice coil position to improve the sensitivity of bone-conduction speaker 200, and then improves The mechanical conversion efficiency of bone-conduction speaker 200 is (that is, convert the electric energy for inputting bone-conduction speaker 200 to voice coil vibrations The efficiency of mechanical energy).More descriptions about at least one second magnetic element may refer to Fig. 3 A-3F.

It is only above specific example to the description of 200 structure of bone-conduction speaker, is not considered as unique feasible Embodiment.It, may after the basic principle for understanding bone-conduction speaker for one of skill in the art Without departing substantially from this principle, the concrete mode to implementing bone-conduction speaker carries out in form and details with step Various modifications and variations, but these modifications and variations are still within the scope of above description.For example, bone-conduction speaker 200 May include shell, connector etc..The connector can connect vibration panel 214 and shell.In another example bone-conduction speaker 200 may include the second magnetic element, and second magnetic element can connect the first magnetic conductive component 204.In another example osteoacusis Loud speaker 200 may further include one or more annular magnet elements, and the annular magnet element can connect second and lead Magnetic cell 206.

Fig. 3 A are a kind of Longitudinal cross section schematics of magnetic circuit component 3100 shown in some embodiments according to the present utility model. As shown in Figure 3A, magnetic circuit component 3100 may include the first magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and second magnetic element 308.

In some embodiments, the first magnetic element 302 and/or the second magnetic element 308 may include the utility model Described in any one or a few magnet.In some embodiments, the first magnetic element 302 may include the first magnet, the Two magnetic elements 308 may include the second magnet, and first magnet can be identical or different with second magnet.First leads Magnetic cell 304 and/or the second magnetic conductive component 306 may include any one or a few magnetic conduction material described in the utility model Material.The processing method of first magnetic conductive component 304 and/or the second magnetic conductive component 306 may include appointing described in the utility model The one or more of processing methods of meaning.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304 and/or second Magnetic element 308 could be provided as axially symmetric structure.For example, the first magnetic element 302, the first magnetic conductive component 304 and/or second Magnetic element 308 can be cylinder.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304 and/or Two magnetic elements 308 can be coaxial cylinder, contain identical or different diameter.The thickness of first magnetic element 302 The thickness of the second magnetic element 308 can be greater than or equal to.In some embodiments, the thickness of the first magnetic element 302 and The ratio range of the sum of the thickness of one magnetic element 302, the second magnetic element 308 and the first magnetic conductive component 304 is 0.4- 0.6.In some embodiments, the second magnetic conductive component 306 can be fluted body structure.The fluted body structure can include U-shaped Section (as shown in Figure 3A).Second magnetic conductive component 306 of the fluted body may include bottom plate and side wall.In some embodiments In, the bottom plate and the side wall can be integrally formed, for example, the side wall can be by bottom plate perpendicular to the side of bottom plate To being extended to form.In some embodiments, the bottom plate can be by any one described in the utility model or several Kind connection type connects the side wall.Second magnetic element 308 can be set as cyclic annular or sheet.In some embodiments, Two magnetic elements 308 can be coaxial with the first magnetic element 302 and/or the first magnetic conductive component 304.

The upper surface of first magnetic element 302 can connect the lower surface of the first magnetic conductive component 304.First magnetic element 302 lower surface can connect the bottom plate of the second magnetic conductive component 306.The lower surface of second magnetic element 308 connects the first magnetic conduction The upper surface of element 304.First magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and/or second are magnetic Connection type between element 308 may include one or more combinations such as being bonded, being clamped, welding, riveting, being bolted.

First magnetic element 302, the first magnetic conductive component 304 and/or the second magnetic element 308 and the second magnetic conductive component 306 Side wall between form magnetic gap.Voice coil 320 can be set in the magnetic gap.In some embodiments, the first magnetic member Part 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and the second magnetic element 308 can form magnetic loop.

In some embodiments, magnetic circuit component 3100 can generate the first full field (also referred to as " and magnetic circuit component it is total Magnetic field "), the first magnetic element 302 can generate the second magnetic field.First full field is by the institute in the magnetic circuit component 3100 There is component (for example, the first magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and the second magnetic element 308) magnetic field generated is collectively formed.Magnetic field intensity of first full field in the magnetic gap (can also be referred to as magnetic Induction or magnetic density) it is more than magnetic field intensity of second magnetic field in the magnetic gap.In some embodiments In, the second magnetic element 308 can generate third magnetic field, and the third magnetic field can improve second magnetic field between the magnetic Magnetic field intensity at gap.In other embodiment in the present specification, unless stated otherwise, magnetic circuit component indicates to include all magnetic Property element and magnetic conductive component structure, the first full field indicates the magnetic field that is integrally generated by magnetic circuit component, the second magnetic field, third magnetic ..., the magnetic fields N indicate the magnetic field caused by corresponding magnetic element respectively.In various embodiments, described in generation Second magnetic field (or third magnetic field ..., the magnetic fields N) magnetic element can be identical, can also be different.

In some embodiments, the direction of magnetization of the direction of magnetization of the second magnetic element 308 and the first magnetic element 302 it Between angle at 90 degree between 180 degree.In some embodiments, the direction of magnetization of the second magnetic element 308 and the first magnetism Angle between the direction of magnetization of element 302 is at 150 degree between 180 degree.In some embodiments, the second magnetic element 308 The direction of magnetization it is opposite with the direction of magnetization of the first magnetic element 302 (as shown, the directions a with the directions b).

Compared with the magnetic circuit component of single magnetic element, magnetic circuit component 3100 increases the second magnetic element 308.Second magnetic Property 308 direction of magnetization of element is with 302 direction of magnetization of the first magnetic element on the contrary, the first magnetic element 302 can be inhibited to magnetize Leakage field on direction to which the magnetic field for alloing the first magnetic element 302 to generate more is compressed in magnetic gap, thus carries Magnetic induction intensity in high magnetic gap.

It is only above specific example to the description of the structure of magnetic circuit component 3100, is not considered as unique feasible Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3100 in form and details various Modifications and variations, but these modifications and variations are still within the scope of above description.For example, the second magnetic conductive component 306 can be with It is loop configuration or laminated structure.In another example magnetic circuit component 3100 may further include a conducting element, the conductive element Part can connect the first magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and the second magnetic element 308.

Fig. 3 B are a kind of Longitudinal cross section schematics of magnetic circuit component 3200 shown in some embodiments according to the present utility model. As shown in Figure 3B, unlike magnetic circuit component 3100, magnetic circuit component 3200 may further include third magnetic element 310.

The lower surface of third magnetic element 310 connects the side wall of the second magnetic conductive component 306.First magnetic element 302, first Magnetic gap can be formed between magnetic conductive component 304, the second magnetic element 308 and/or third magnetic element 310.Voice coil 320 can be with It is set in the magnetic gap.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304, the second magnetic conduction member Part 306, the second magnetic element 308 and third magnetic element 310 can form magnetic loop.

In some embodiments, magnetic circuit component 3200 can generate the first full field, and the first magnetic element 302 can generate Second magnetic field, magnetic field intensity of first full field in the magnetic gap are more than second magnetic field in the magnetic gap Magnetic field intensity.In some embodiments, third magnetic element 310 can generate third magnetic field, and the third magnetic field can carry Magnetic field intensity of high second magnetic field at the magnetic gap.

In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and third magnetic element 310 it Between angle at 0 degree between 180 degree.In some embodiments, the magnetic member of the direction of magnetization Yu third of the first magnetic element 302 The direction of magnetization of part 310 and between angle between 45 degree and 135 degree.In some embodiments, first magnetic element 302 Angle between the direction of magnetization and the direction of magnetization of the third magnetic element 310 is equal to or more than 90 degree.In some embodiments In, the direction of magnetization of the first magnetic element 302 perpendicular to the lower surface of the first magnetic element 302 or upper surface straight up (such as Direction shown in a in figure), the direction of magnetization of third magnetic element 310 is directed toward outer shroud (as schemed by the inner ring of third magnetic element 310 Middle c institutes direction shows that the direction of magnetization on the right side of the first magnetic element 302, the first magnetic element 302 is inclined clockwise It turn 90 degrees).

In some embodiments, at the position of third magnetic element 310, direction and the third magnetic of first full field Property element 310 the direction of magnetization between angle be not higher than 90 degree.In some embodiments, in the position of third magnetic element 310 Set place, the angle between the direction and the direction of magnetization of third magnetic element 310 in the magnetic field that the first magnetic element 302 generates can be with It is 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.

Compared with magnetic circuit component 3100, magnetic circuit component 3200 further increases third magnetic element 310.The magnetic member of third Part 310 can further increase the total magnetic flux in magnetic gap in magnetic circuit component 3200, and then increase the magnetic induction in magnetic gap Intensity.Also, under the action of third magnetic element 310, magnetic induction line can further be restrained to magnetic gap position, further Increase the magnetic induction intensity in magnetic gap.

Fig. 3 C are a kind of Longitudinal cross section schematics of magnetic circuit component 3300 shown in some embodiments according to the present utility model. As shown in Figure 3 C, unlike magnetic circuit component 3100, magnetic circuit component 3300 may further include the 4th magnetic element 312.

4th magnetic element 312 can by bonding, clamping, one or more combinations such as welding, rivet, be bolted and connect Connect the side wall of the first magnetic element 302 and the second magnetic conductive component 306.In some embodiments, the first magnetic element 302, One magnetic conductive component 304, the second magnetic conductive component 306, the second magnetic element 308 and the 4th magnetic element 312 can be formed between magnetic Gap.In some embodiments, the direction of magnetization of the second magnetic element 308 can refer to the detailed description of the utility model Fig. 3 A.

In some embodiments, magnetic circuit component 3200 can generate the first full field, and the first magnetic element 302 can generate Second magnetic field, magnetic field intensity of first full field in the magnetic gap are more than second magnetic field in the magnetic gap Magnetic field intensity.In some embodiments, the 4th magnetic element 312 can generate the 4th magnetic field, and the 4th magnetic field can carry Magnetic field intensity of high second magnetic field at the magnetic gap.

In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the 4th magnetic element 312 it Between angle at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 and the 4th magnetic member The direction of magnetization of part 312 and between angle between 45 degree and 135 degree.In some embodiments, first magnetic element 302 Angle between the direction of magnetization and the direction of magnetization of the 4th magnetic element 312 is not higher than 90 degree.In some embodiments, the first magnetic Property element 302 the direction of magnetization perpendicular to the lower surface of the first magnetic element 302 or upper surface straight up (such as the directions figure a institute Show), the direction of magnetization of the 4th magnetic element 312 by the outer shroud of the 4th magnetic element 312 be directed toward inner ring (as shown in the directions e in figure, The direction of magnetization on the right side of the first magnetic element 302, the first magnetic element 302 deflects 270 degree clockwise).

In some embodiments, at the position of the 4th magnetic element 312, the direction of first full field and described the Angle between the direction of magnetization of four magnetic elements 312 is not higher than 90 degree.In some embodiments, in the 4th magnetic element 312 Position, the first magnetic element 302 generate magnetic field direction and the direction of magnetization of the 4th magnetic element 312 between angle can To be 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.

Compared with magnetic circuit component 3200, magnetic circuit component 3300 further increases the 4th magnetic element 312.4th magnetic member Part 312 can further increase the total magnetic flux in magnetic gap in magnetic circuit component 3300, and then increase the magnetic induction in magnetic gap Intensity.Also, under the action of the 4th magnetic element 312, magnetic induction line can further be restrained to magnetic gap position, further Increase the magnetic induction intensity in magnetic gap.

Fig. 3 D are a kind of Longitudinal cross section schematics of magnetic circuit component 3400 shown in some embodiments according to the present utility model. As shown in Figure 3D, unlike magnetic circuit component 3200, magnetic circuit component 3400 may further include the 5th magnetic element 314.

The lower surface of third magnetic element 310 connects the 5th magnetic element 314, and the lower surface of the 5th magnetic element 314 connects Connect the side wall of the second magnetic conductive component 306.First magnetic element 302, the first magnetic conductive component 304, the second magnetic element 308 and/or Magnetic gap can be formed between third magnetic element 310.Voice coil 320 can be set in the magnetic gap.In some embodiments In, the magnetic member of the first magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306, the second magnetic element 308, third Part 310 and the 5th magnetic element 314 can form magnetic loop.In some embodiments, the magnetization side of the second magnetic element 308 To and third magnetic element 310 can refer to the utility model Fig. 3 A and 3B detailed description.

In some embodiments, magnetic circuit component 3400 can generate the first full field, and the first magnetic element 302 can generate Second magnetic field, magnetic field intensity of first full field in the magnetic gap are more than second magnetic field in the magnetic gap Magnetic field intensity.In some embodiments, the 5th magnetic element 314 can generate the 5th magnetic field, and the 5th magnetic field can carry Magnetic field intensity of high second magnetic field at the magnetic gap.

In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the 5th magnetic element 314 it Between angle at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 and the 5th magnetic member The direction of magnetization of part 314 and between angle between 45 degree and 135 degree.In some embodiments, first magnetic element 302 Angle between the direction of magnetization and the direction of magnetization of the 5th magnetic element 314 is equal to or more than 90 degree.

In some embodiments, at the position of the 5th magnetic element 314, direction and the 5th magnetic of first full field Property element 314 the direction of magnetization between angle be not higher than 90 degree.In some embodiments, in the position of the 5th magnetic element 314 Set place, the angle between the direction and the direction of magnetization of the 5th magnetic element 314 in the magnetic field that the first magnetic element 302 generates can be with It is 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.In some embodiments, the magnetization side of the first magnetic element 302 To perpendicular to the first magnetic element 302 lower surface or upper surface straight up (as shown in figure a directions), the 5th magnetic element 314 direction of magnetization is directed toward lower surface (as shown in the directions d in figure, in the first magnetic member by the upper surface of the 5th magnetic element 314 The direction of magnetization on the right side of part 302, the first magnetic element 302 deflects 180 degree clockwise).

Compared with magnetic circuit component 3200, magnetic circuit component 3400 further increases the 5th magnetic element 314.5th magnetic member Part 314 can further increase the total magnetic flux in magnetic gap in magnetic circuit component 3400, and then increase the magnetic induction in magnetic gap Intensity.Also, under the action of the 4th magnetic element 314, magnetic induction line can further be restrained to magnetic gap position, further Increase the magnetic induction intensity in magnetic gap.

Fig. 3 E are a kind of Longitudinal cross section schematics of magnetic circuit component 3500 shown in some embodiments according to the present utility model. As shown in FIGURE 3 E, unlike magnetic circuit component 3300, magnetic circuit component 3500 may further include the 6th magnetic element 316.

6th magnetic element 316 can by bonding, clamping, one or more combinations such as welding, rivet, be bolted and connect Connect the side wall of the second magnetic element 308 and the second magnetic conductive component 306.In some embodiments, the first magnetic element 302, One magnetic conductive component 304, the second magnetic conductive component 306, the second magnetic element 308, the 4th magnetic element 312 and the 6th magnetic element 316 can form magnetic gap.In some embodiments, the direction of magnetization of the second magnetic element 308 and the 4th magnetic element 312 can With the detailed description with reference to the utility model Fig. 3 A and 3C.

In some embodiments, magnetic circuit component 3500 can generate the first full field, and the first magnetic element 302 can generate Second magnetic field, magnetic field intensity of first full field in the magnetic gap are more than second magnetic field in the magnetic gap Magnetic field intensity.In some embodiments, the 6th magnetic element 316 can generate the 6th magnetic field, and the 6th magnetic field can carry Magnetic field intensity of high second magnetic field at the magnetic gap.

In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the 6th magnetic element 316 it Between angle at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 and the 6th magnetic member The direction of magnetization of part 316 and between angle between 45 degree and 135 degree.In some embodiments, first magnetic element 302 Angle between the direction of magnetization and the direction of magnetization of the 6th magnetic element 316 is not higher than 90 degree.In some embodiments, the first magnetic Property element 302 the direction of magnetization perpendicular to the lower surface of the first magnetic element 302 or upper surface straight up (such as the directions figure a institute Show), the direction of magnetization of the 6th magnetic element 316 by the outer shroud of the 6th magnetic element 316 be directed toward inner ring (as shown in the directions f in figure, The direction of magnetization on the right side of the first magnetic element 302, the first magnetic element 302 deflects 270 degree clockwise).

In some embodiments, at the position of the 6th magnetic element 316, direction and the 6th magnetic of first full field Property element 316 the direction of magnetization between angle be not higher than 90 degree.In some embodiments, in the position of the 6th magnetic element 316 Set place, the angle between the direction and the direction of magnetization of the 6th magnetic element 316 in the magnetic field that the first magnetic element 302 generates can be with It is 90 degree, 110 degree, the angles for being more than 90 degree such as 120 degree.

Compared with magnetic circuit component 3100, it is magnetic that magnetic circuit component 3500 further increases the 4th magnetic element 312 and the 6th Element 316.4th magnetic element 312 and the 6th magnetic element 316 can improve magnetic total in magnetic gap in magnetic circuit component 3500 Flux improves the magnetic induction intensity at magnetic gap, to improve the sensitivity of bone-conduction speaker.

Fig. 3 F are a kind of Longitudinal cross section schematics of magnetic circuit component 3400 shown in some embodiments according to the present utility model. As illustrated in Figure 3 F, unlike magnetic circuit component 3100, magnetic circuit component 3400 may further include third magnetic conductive component 318.

In some embodiments, third magnetic conductive component 318 may include described in the utility model any one or it is several Kind permeability magnetic material.Magnetic conduction material included by first magnetic conductive component 304, the second magnetic conductive component 306 and/or third magnetic conductive component 318 Material can be identical or different.In some embodiments, third magnetic conductive component 318 could be provided as symmetrical structure.For example, third is led Magnetic cell 318 can be cylinder.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304, second are magnetic Element 308 and/or third magnetic conductive component 318 can be coaxial cylinders, contain identical or different diameter.Third magnetic conduction Element 318 can connect the second magnetic element 308.In some embodiments, third magnetic conductive component 318 can connect the second magnetism Element 308 and the second magnetic conductive component 306 are so that third magnetic conductive component 318 and the second magnetic conductive component 306 form a cavity, institute It can includes the first magnetic element 302, the second magnetic element 308 and the first magnetic conductive component 304 to state cavity.

Compared with magnetic circuit component 3100, magnetic circuit component 3400 further increases third magnetic conductive component 318.Third magnetic conduction member Part 318 can inhibit leakage field of second magnetic element 308 in the direction of magnetization in magnetic circuit component 3400, to make the second magnetic member The magnetic field that part 308 generates can be more compressed in magnetic gap, thus improve the magnetic induction intensity in magnetic gap.

Fig. 4 A are a kind of cross-sectional views of magnetic element structure shown in some embodiments according to the present utility model. The magnetic element 400 can be adapted in the utility model in any magnetic circuit component (for example, magnetic circuit group shown in Fig. 3 A-3F Part).As shown, magnetic element 400 can be cricoid.Magnetic element 400 may include inner ring 402 and outer shroud 404. In some embodiments, the shape of the inner ring 402 and/or outer shroud 404 can be circle, ellipse, triangle, quadrangle or other Arbitrary polygon.

Fig. 4 B are a kind of schematic diagrames of magnetic element structure shown in some embodiments according to the present utility model.The magnetic Property element can be adapted in the utility model in any magnetic circuit component (for example, magnetic circuit component shown in Fig. 3 A-3F).As schemed Show, the magnetic element can be rearranged by multiple magnets.The both ends of any one magnet of the magnet can with it is adjacent Magnet both ends connection or there are certain spacing.Spacing between multiple magnets can be identical or different.In some implementations In example, the magnetic element can be equidistant by the magnet (for example, magnet 408-2,408-4 and 408-6) of 2 or 3 sheets It is arranged to make up.The shape of the magnet of the sheet can be sector, quadrangle etc..

Fig. 4 C are that the direction of magnetization of magnetic element in magnetic circuit component shown in some embodiments according to the present utility model is shown It is intended to.As described in Figure, the magnetic circuit component may include that the first magnetic element 401, the second magnetic element 403 and third are magnetic Element 405.The direction of magnetization of first magnetic element 401 can be directed toward upper surface (i.e. by the lower surface of the first magnetic element 401 Perpendicular to paper outwardly direction).Second magnetic element 403 can surround the first magnetic element 401 and be arranged.Second magnetic element Magnetic gap can be formed between 403 inner ring and the inner ring of the first magnetic element 401.The direction of magnetization of second magnetic element 403 Can outer shroud be directed toward by the inner ring of the second magnetic element 403.The inner ring of third magnetic element 405 can connect the first magnetic element 401 outer shroud, the outer shroud of third magnetic element 405 can connect the inner ring of the second magnetic element 403.Third magnetic element 405 The direction of magnetization can by the outer shroud of third magnetic element 403 be directed toward inner ring.

Fig. 4 D are the magnetic strengths of the magnetic element in a kind of magnetic circuit component shown in some embodiments according to the present utility model Answer line schematic diagram.As shown, magnetic circuit component 400 (for example, magnetic circuit component as illustrated in figs. 3a-f) may include the first magnetism Element 402 and the second magnetic element 404.The direction of magnetization of first magnetic element 402 can be under the first magnetic element 402 It is directed toward upper surface (as shown by arrow a) in surface.First magnetic element 402 can generate the second magnetic field, and second magnetic field can be with (solid line indicates in the presence of no second magnetic element 404 in figure, the distribution in the second magnetic field) is indicated by the line of magnetic induction, Magnetic direction of second magnetic field at certain point is tangential direction of this on the line of magnetic induction.Second magnetic element 404 The direction of magnetization can be the second magnetic element 404 inner ring be directed toward outer shroud (as shown by the arrowb).Second magnetic element 404 can To generate third magnetic field.The third magnetic field can also be indicated that (dotted line is indicated in the no first magnetic member in figure by the line of magnetic induction In the presence of part 402, the distribution in third magnetic field), magnetic direction of the third magnetic field at certain point is this o'clock the Tangential direction on three line of magnetic inductions.Under the interaction in second magnetic field and the third magnetic field, the magnetic circuit component 400 can generate the first full field.Magnetic field intensity of first full field at voice coil 406 is more than second magnetic field or institute State magnetic field intensity of the third magnetic field at voice coil 406.As shown, magnetic direction of second magnetic field at voice coil 406 with The angle of the direction of magnetization of second magnetic element 404 is less than or equal to 90 degree.

Fig. 5 is a kind of structural representation of bone-conduction speaker 5000 shown in some embodiments according to the present utility model Figure.As shown, bone-conduction speaker 5000 may include the first magnetic element 502, the first magnetic conductive component 504, the second magnetic conduction Element 506, the second magnetic element 508, voice coil 510, third magnetic conductive component 512, holder 514 and connector 516.First is magnetic Element 502, the first magnetic conductive component 504, the second magnetic conductive component 506, the second magnetic element 508, voice coil 510 and/or third magnetic conduction Element 512 can refer to the associated description of other attached drawings in the utility model.

The upper surface of first magnetic element 502 can connect the lower surface of the first magnetic conductive component 504.Second magnetic element 508 lower surface can connect the upper surface of the first magnetic conductive component 504.Second magnetic conductive component 506 may include the first bottom plate with And the first side wall.The lower surface of first magnetic element 502 can connect the upper surface of first bottom plate.Second magnetic conductive component The side wall of 506 side wall and the first magnetic element 502, the first magnetic conductive component 504 and/or the second magnetic element 508 is formed between magnetic Gap.Holder 514 may include the second bottom plate and second sidewall.After holder 514 is connect with voice coil 510, voice coil 510 can be arranged In the magnetic gap.Voice coil 510 can connect the second sidewall.Between the upper surface of voice coil 510 and second bottom plate Latasuture can be formed.After voice coil 510 is placed in the magnetic gap, third magnetic conductive component 512 can pass through latasuture connection the The first side wall of the upper surface of two magnetic elements 508 and the second magnetic conductive component 506 so that third magnetic conductive component 512 with Second magnetic conductive component 506 forms closed cavity.First magnetic element 502, the first magnetic conductive component 504, the second magnetic conductive component 506, Connection between each elements such as the second magnetic element 508, voice coil 510 and/or third magnetic conductive component 512 can be new by this practicality Any one or a few connection type described in type.In some embodiments, the first magnetic element 502, the first magnetic conductive component 504, one can be arranged on the second magnetic conductive component 506, the second magnetic element 508, third magnetic conductive component 512 and/or holder 514 Or multiple cavernous structures (for example, pin hole, threaded hole etc.).The cavernous structure can be set to the first magnetic element 502, first In magnetic conductive component 504, the second magnetic conductive component 506, the second magnetic element 508, third magnetic conductive component 512 and/or holder 514 The heart, surrounding or other positions.Connector 516 can run through the cavernous structure, and connect each element.For example, connector 516 It can be barrel bolt.Staking punch can be utilized to pass through holder 514 by 516 Pressing Deformation of barrel bolt, to fixed bone-conduction speaker All parts in 5000.

It is only above specific example to the description of the structure of bone-conduction speaker 5000, is not considered as uniquely may be used Capable embodiment.For one of skill in the art, after the basic principle for understanding magnetic circuit component, Ke Neng In the case of without departing substantially from this principle, the concrete mode to implementing bone-conduction speaker 5000 carries out in form and details with step Various modifications and variations, but these modifications and variations are still within the scope of above description.For example, bone-conduction speaker 5000 may include one or more conducting elements, and one or more of conducting elements are set to the madial wall, outer of voice coil 510 Side wall, top and/or bottom.In another example bone-conduction speaker 5000 may further include one or more annular magnet members Part, one or more of annular magnet elements can connect the upper surface of the side wall of the second magnetic conductive component 506 or be fixed on magnetic In gap.

Fig. 6 is a kind of structural representation of bone-conduction speaker 6000 shown in some embodiments according to the present utility model Figure.As shown, bone-conduction speaker 6000 may include the first magnetic element 602, the first magnetic conductive component 604, the second magnetic conduction Element 606, the second magnetic element 608, voice coil 610, third magnetic conductive component 612, holder 614, connector 616, rack rod 618 And washer 620.The upper surface of first magnetic element 602 can connect the lower surface of the first magnetic conductive component 606.Second magnetic member The lower surface of part 608 can connect the upper surface of the first magnetic conductive component 606.Second magnetic conductive component 606 may include the first bottom plate With the first side wall, the first side wall can be extended to form by the bottom plate along perpendicular to bottom plate direction.First is magnetic The lower surface of element 602 can connect the upper surface of the bottom plate of the second magnetic conductive component 606.The side wall of second magnetic conductive component 606 with The side wall of first magnetic element 602, the first magnetic conductive component 604 and/or the second magnetic element 608 forms magnetic gap.Rack rod One or more rod-like structures can be arranged in 618 surrounding.Voice coil 610 can be with connecting bracket connecting rod 618.Rack rod 618 with After voice coil 610 connects, voice coil 610 can be set in the magnetic gap.Third magnetic conductive component 612 may include the second bottom plate with And second sidewall, the second sidewall can be extended to form by second bottom plate, the second sidewall can be arranged one Or multiple first cavernous structures, first cavernous structure is corresponding with the rod-like structure of rack rod 618, rack rod 618 Rod-like structure can run through the first cavernous structure of the third magnetic conductive component 612.When voice coil 610 is placed in the magnetic gap Afterwards, the second sidewall of third magnetic conductive component 612 can pass through the rod-shaped knot of the first cavernous structure connecting bracket connecting rod 618 Structure, the second bottom plate can connect the upper surface of the second magnetic element 608.First magnetic element 602, the first magnetic conductive component 604, Connection between each elements such as two magnetic conductive components 606, the second magnetic element 608, voice coil 610 and/or third magnetic conductive component 612 can To pass through any one or a few connection type described in the utility model.In some embodiments, the first magnetic element 602, the first magnetic conductive component 604, the second magnetic conductive component 606, the second magnetic element 608, third magnetic conductive component 612 and/or holder The second cavernous structure can be arranged in 614 center, surrounding or other positions.Connector 616 can run through the cavernous structure, and Connect each element.For example, connector 616 can be barrel bolt.Staking punch can be utilized to pass through holder 614 by 616 punching press of barrel bolt Deformation, to fix the first magnetic element 602, the first magnetic conductive component 604, the second magnetic conductive component 606, the second magnetic element 608 And third magnetic conductive component 612.Holder 614 can further connect third magnetic conduction with connecting bracket railing 618, washer 620 The first side wall of the second sidewall of element 612 and the second magnetic conductive component 606, to further fix the second magnetic conductive component 606 And third magnetic conductive component 612.In some embodiments, the washer 620 can be connect by oscillating plate with holder 614.

It is only above specific example to the description of the structure of bone-conduction speaker 6000, is not considered as uniquely may be used Capable embodiment.For one of skill in the art, after the basic principle for understanding magnetic circuit component, Ke Neng In the case of without departing substantially from this principle, the concrete mode to implementing bone-conduction speaker 6900 carries out in form and details with step Various modifications and variations, but these modifications and variations are still within the scope of above description.For example, bone-conduction speaker 6000 may include one or more conducting elements, and one or more of conducting elements are set to the madial wall, outer of voice coil 610 Side wall, top and/or bottom.In another example bone-conduction speaker 6000 may further include one or more annular magnet members Part, one or more of annular magnet elements can connect the upper surface of the side wall of the second magnetic conductive component 606 or be fixed on magnetic In gap.

Basic conception is described above, it is clear that those skilled in the art, above-mentioned utility model discloses It is merely exemplary, and do not constitute the restriction to the utility model.Although do not clearly state herein, people in the art Member may carry out various modifications the utility model, improves and correct.Such modification is improved and is corrected in the present invention It is proposed, so such is changed, improves, corrects the spirit and scope for still falling within the utility model example embodiment.

Meanwhile the utility model has used particular words to describe the embodiments of the present invention.Such as " one embodiment ", " embodiment " and/or " some embodiments " means and the relevant a certain feature of at least one embodiment of the utility model, structure Or feature.Therefore, it should be emphasized that simultaneously it is noted that " embodiment " that is referred to twice or repeatedly in different location in this specification or " one embodiment " or " alternate embodiment " is not necessarily meant to refer to the same embodiment.In addition, one of the utility model or Certain features, structure or feature in multiple embodiments can carry out combination appropriate.

In addition, it will be understood by those skilled in the art that the various aspects of the utility model can have patentability by several Property type or situation be illustrated and described, including any new and useful process, machine, product or substance combination or Any new and useful improvement to them.Correspondingly, the various aspects of the utility model can completely by hardware execute, can To be executed, can also be executed by combination of hardware by software (including firmware, resident software, microcode etc.) completely.It is above hard Part or software are referred to alternatively as " data block ", " module ", " engine ", " unit ", " component " or " system ".In addition, this practicality is new The various aspects of type may show as the computer product being located in one or more computer-readable mediums, which includes calculating Machine readable program encodes.

In addition, except being clearly stated in non-claimed, sequence, the numeric word of processing element described in the utility model and sequence The use of female use or other titles, is not intended to limit the sequence of the utility model flow and method.Although above-mentioned disclosure In by various examples discuss some it is now recognized that useful utility model embodiment, but it is to be understood that, such details The purpose of explanation is only played, appended claims are not limited in the embodiment disclosed, on the contrary, claim is intended to covering institute There are the amendment for meeting the utility model embodiment spirit and scope and equivalent combinations.Although for example, system group described above Part can be realized by hardware device, but can also be only achieved by the solution of software, such as in existing service Described system is installed on device or mobile device.

Similarly, it is noted that in order to simplify the statement of the utility model disclosure, to help to one or more real With the understanding of new embodiment, above in the description of the utility model embodiment, sometimes by various features merger to one In embodiment, attached drawing or descriptions thereof.But this disclosure method is not meant to the required spy of the utility model object Sign is more than the feature referred in claim.In fact, the feature of embodiment will be less than the complete of the single embodiment of above-mentioned disclosure Portion's feature.

Used in some embodiments description ingredient, number of attributes number, it should be appreciated that it is such be used for embodiment The number of description has used qualifier " about ", " approximation " or " generally " etc. to modify in some instances.Unless in addition saying It is bright, " about ", " approximation " or " generally " show that the number allows the variation for having ± 20%.Correspondingly, in some embodiments In, the numeric data used in description and claims is approximation, and the approximation is according to feature needed for separate embodiment It can change.In some embodiments, numeric data is considered as defined significant digit and using the reservation of general digit Method.Although the Numerical Range and data in some embodiments of the utility model for confirming its range range are approximation, having In body embodiment, being set in for such numerical value is reported as precisely as possible in feasible region.

Finally, it will be understood that embodiment described in the utility model is only to illustrate the utility model embodiment Principle.Others deformation may also belong to the scope of the utility model.Therefore, as an example, not a limit, the utility model is real The alternative configuration for applying example can be considered that the introduction with the utility model is consistent.Correspondingly, the embodiments of the present invention are not limited only to The embodiment that the utility model is clearly introduced and described.

Claims

1. a kind of magnetic circuit component of bone-conduction speaker, the magnetic circuit component generates the first full field, and the magnetic circuit component includes：

First magnetic element, first magnetic element generate the second magnetic field；

First magnetic conductive component；

Second magnetic conductive component, at least part of second magnetic conductive component is around first magnetic element, and with described first Magnetic gap is formed between magnetic element；And

At least one second magnetic element, at least one second magnetic element connect first magnetic conductive component upper surface, It is strong that magnetic field intensity of first full field in the magnetic gap is more than magnetic field of second magnetic field in the magnetic gap Degree.

2. magnetic circuit component described in claim 1, the direction of magnetization and first magnetic of at least one second magnetic element The angle of the direction of magnetization of property element is at 150 degree between 180 degree.

3. magnetic circuit component described in claim 1, the thickness of first magnetic element and first magnetic element, it is described extremely The ratio range of the sum of the thickness of few second magnetic element and first magnetic conductive component is 0.4-0.6.

4. the thickness of magnetic circuit component described in claim 1, at least one second magnetic element is equal to first magnetism The thickness of element.

5. the thickness of magnetic circuit component described in claim 1, at least one second magnetic element is less than first magnetism The thickness of element.

6. magnetic circuit component described in claim 1, further comprises,

At least one third magnetic element, at least one third magnetic element is around the described at least one second magnetic member Part.

7. the magnetic circuit component described in claim 6, the direction of magnetization and first magnetic of at least one third magnetic element Angle between the direction of magnetization of property element is between 45 degree and 135 degree.

8. the magnetic circuit component described in claim 7, the direction of magnetization and first magnetic of at least one third magnetic element Property element the direction of magnetization between angle be not less than 90 degree.

9. the magnetic circuit component described in claim 6, further comprises：

At least one 4th magnetic element, wherein at least one 4th magnetic element connect second magnetic conductive component and At least one third magnetic element.

10. the magnetic circuit component described in claim 9, the direction of magnetization and first magnetic of at least one 4th magnetic element Angle between the direction of magnetization of property element is between 45 degree and 135 degree.

11. magnetic circuit component according to any one of claims 10, the direction of magnetization and described first of at least one 4th magnetic element Angle between the direction of magnetization of magnetic element is not less than 90 degree.

12. magnetic circuit component described in claim 1, further comprises：

At least one 5th magnetic element, wherein at least one 5th magnetic element is located at the lower section of the magnetic gap simultaneously Connect first magnetic element and second magnetic conductive component.

13. the magnetic circuit component described in claim 12, the direction of magnetization and described first of at least one 5th magnetic element Angle between the direction of magnetization of magnetic element is between 45 degree and 135 degree.

14. the magnetic circuit component described in claim 13, the direction of magnetization and described first of at least one 5th magnetic element Angle between the direction of magnetization of magnetic element is not more than 90 degree.

15. the magnetic circuit component described in claim 13, further comprises：

Third magnetic conductive component, the third magnetic conductive component connect at least one second magnetic element.