CN208210280U

CN208210280U - A kind of magnetic circuit component of bone-conduction speaker

Info

Publication number: CN208210280U
Application number: CN201820025945.2U
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: 2018-12-07
Anticipated expiration: 2028-01-08

Abstract

The utility model relates to a kind of magnetic circuit components of bone-conduction speaker, including the first magnetic element, the first magnetic conductive component and the second magnetic conductive component.First magnetic element generates the first magnetic field.The magnetic circuit component further includes at least one second magnetic element.At least one described second magnetic element forms magnetic gap between first magnetic element around first magnetic element.Second magnetic element generates the second magnetic field, and magnetic field strength of first magnetic field at the magnetic gap is improved in second magnetic field.

Description

A kind of magnetic circuit component of bone-conduction speaker

Technical field

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

Background technique

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 needs to drive the soft tissue of user and bone to vibrate, thus its required mechanical output compared with It is high.The sensitivity for improving bone-conduction speaker can make electric energy be converted into the more efficient of mechanical energy, thus the machine that output is bigger Tool power.Improving seems even more important for sensitivity bone-conduction speaker higher for power requirement.

Utility model content

The one aspect of the utility model is related to a kind of magnetic circuit component of bone-conduction speaker.The magnetic circuit component includes the One magnetic element, first magnetic element generate the first magnetic field；First magnetic conductive component；And at least one second magnetic member Part, at least one described second magnetic element are formed between first magnetic element around first magnetic element Magnetic gap, second magnetic element generate the second magnetic field, and first magnetic field is improved in the magnetic gap in second magnetic field The magnetic field strength at place.

Some embodiments according to the present utility model, the direction of magnetization of at least one second magnetic element and described the Angle between the direction of magnetization of one magnetic element is not less than 90 degree.

Some embodiments according to the present utility model, the magnetic circuit component further include the second magnetic conductive component；And at least one A third magnetic element.Described at least one third magnetic element connect second magnetic conductive component and it is described at least one second Magnetic element, at least one described third magnetic element generate third magnetic field, and the third magnetic field improves first magnetic field and exists Magnetic field strength at the magnetic gap.

Some embodiments according to the present utility model, the direction of magnetization of at least one third magnetic element and described the Angle between the direction of magnetization of one magnetic element is not less than 90 degree.

Some embodiments according to the present utility model, the magnetic circuit component further include at least one the 4th magnetic element, In, at least one described the 4th magnetic element is placed in the lower section of the magnetic gap and connects first magnetic element and described Second magnetic conductive component, at least one described the 4th magnetic element generate the 4th magnetic field, and first magnetic is improved in the 4th magnetic field Magnetic field strength of the field at the magnetic gap.

Some embodiments according to the present utility model, the direction of magnetization of at least one the 4th magnetic element and described the Between the direction of magnetization of one magnetic element between 45 degree and 135 degree.

Some embodiments according to the present utility model, the magnetic circuit component further include at least one the 5th magnetic element, In, at least one described the 5th magnetic element connects the upper surface of first magnetic conductive component, at least one described the 5th magnetism Element generates the 5th magnetic field, and magnetic field strength of first magnetic field at the magnetic gap is improved in the 5th magnetic field.

Some embodiments according to the present utility model, the direction of magnetization of at least one the 5th magnetic element and described the The angle of the direction of magnetization of one magnetic element is at 150 degree between 180 degree.

Some embodiments according to the present utility model, the thickness of first magnetic element and first magnetic element, The ratio range of the sum of the thickness of at least one described the 5th magnetic element and first magnetic conductive component is 0.4-0.6.

The thickness of some embodiments according to the present utility model, at least one the 5th magnetic element is equal to described first The thickness of magnetic element.

The thickness of some embodiments according to the present utility model, at least one the 5th magnetic element is less than described first The thickness of magnetic element.

Some embodiments according to the present utility model, the magnetic circuit component further include third magnetic conductive component, wherein described Three magnetic conductive components connect the upper surface of the 5th magnetic element, and the third magnetic conductive component is configured as inhibiting first magnetic The field strength in field and second magnetic field is revealed.

Some embodiments according to the present utility model, first magnetic conductive component connect the upper table of first magnetic element Face, second magnetic conductive component include that bottom plate and side wall and first magnetic element connect second magnetic conductive component Bottom plate.

Some embodiments according to the present utility model, the magnetic circuit component further include at least one conducting element, wherein institute State at least one in conducting element connection first magnetic element, first magnetic conductive component or second magnetic conductive component A element.

A part of bells and whistles of the utility model can be illustrated in the following description.By to being described below and The understanding of inspection or production or the operation to embodiment of corresponding attached drawing, a part of bells and whistles of the utility model for Those skilled in the art is apparent.The characteristic that the utility model discloses can be by specific embodiments described below Various methods, means and combined practice or use are achieved and reach.

Detailed description of the invention

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 structural module 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 is a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments according to the present utility model；

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

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

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

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

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

Fig. 3 G is a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments according to the present utility model；

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

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

Fig. 4 C is 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 is the line of magnetic induction point of magnetic element in magnet assembly shown in some embodiments according to the present utility model Butut.

Specific embodiment

It, below will be to required in embodiment description 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.It should be evident that the accompanying drawings in the following description is only that some of the utility model show Example or embodiment for those of ordinary skill in the art without creative efforts, can also bases The utility model is applied to other similar scene by these attached drawings.It should be appreciated that providing these exemplary embodiments is only to be Better understood when those skilled in the relevant art 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 " includes " and "comprising" Only prompt included the steps that clearly identified and element, and these steps and element do not constitute one it is exclusive enumerate, method Or equipment the step of may also including other 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 description 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 those of ordinary skill in the art, " loudspeaker " or " earphone " can also be replaced with other similar words, for example " be played Device ", " hearing aid " etc..In fact, the various implementations in the utility model can easily be applied to other non-loudspeakings 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, to implement bone-conduction speaker concrete mode and step 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 The function of loudspeaker realization hearing aid.For example, the microphones such as microphone can pick up user/wearer's ambient enviroment sound (or the electric signal generated) after acoustic processing is sent to bone-conduction speaker part under certain algorithm by sound.I.e. bone passes The function of picking up surrounding sounds can be added, and pass through after certain signal processing by certain modification by leading loudspeaker 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 may include the first magnetic element, the first magnetic conductive component, the second magnetic conduction member Part and one or more second magnetic elements.One or more of second magnetic elements surround first magnetic element, And magnetic gap is formed between first magnetic element.Multiple second magnetic elements in the magnetic circuit component are around described the The setting of one magnetic element can be reduced in the case where improving magnetic gap magnetic field strength, improving the sensitivity of bone-conduction speaker The volume and weight of magnetic circuit component, improve the efficiency of bone-conduction speaker, increase the service life of bone-conduction speaker.

The bone-conduction speaker has the characteristics that small in size, light-weight, high-efficient, high sensitivity and long service life, Convenient for combining the bone-conduction speaker with wearable intelligent equipment, to realize the multifunction of single equipment, improve And optimize user experience.The wearable intelligent equipment includes but is 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, integrates osteoacusis in the manufacture material of the clothes of user, gloves, cap, shoes etc. and raise 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 structural module 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 can be used for converting vibration for the signal containing acoustic information 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 It can be related or uncorrelated.In some embodiments, bone-conduction speaker 100 can be obtained by various ways The signal containing acoustic information, the acquisition of the signal can be it is wired or wireless, can be in 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 be with (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 handling 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.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 standard, IEEE802.15 series standard (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 skill 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 from other equipment by Bluetooth technology.

Vibration component 104 can produce mechanical oscillation.Conversion of the generation of the vibration along with energy, osteoacusis loudspeaking Device 100 can be used specific magnetic circuit component 102 and realize that the signal containing acoustic information turns to mechanical oscillation with vibration component 104 It changes.It may coexisting and converting comprising 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 The process that vibration signal is converted to by optical signal may be implemented in energy device.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 will receive vibration The influence of component 104.For example, vibration component 104 includes that the cylindrical coil of winding and one shake in moving-coil type transducing head Kinetoplast (for example, a vibrating reed) is driven vibrating body vibration sounding by the cylindrical coil that signal code drives in magnetic field, vibrated The stretching, extension and contraction of body material, the deformation of fold, size, shape and fixed form, the magnetic density etc. of permanent magnet, all can be to bone The audio quality of conduction speaker 100 brings very big influence.Vibrating body can be mirror-symmetrical knot in vibration component 104 Structure, centrosymmetric structure or asymmetrical structure；Intermittent cavernous structure can be set on vibrating body, produced vibrating body Raw bigger displacement improves the output power of vibration with sound so that bone-conduction speaker be allowed to realize higher sensitivity；Vibration Body can be torus structure, be arranged multiple struts to center influx in torus, the number of strut can be two or Person is 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 For accommodating the accommodation space of 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 Equipment is stored including one or more.The storage equipment may include Direct Attached Storage (Direct Attached Storage), network attached storage (Network Attached Storage) and storage area network (Storage Area The storage equipment in storage systems such as Network).Storage equipment may include all kinds of storage equipment 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 equipment/storage unit is to list some examples Son, the storage equipment which can be used 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 where this principle, to concrete mode and step progress in form and details various for implementing bone-conduction speaker 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 A or multiple sensors, such as temperature sensor, humidity sensor, velocity sensor, displacement sensor etc..The sensor can To 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 produce magnetic field, such as magnet etc..The magnetic Property element can have the direction of magnetization, and 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.The distribution in the adjustable magnetic field of magnetizer (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 One or more combined methods such as work, machining, powder metallurgy process the magnetizer.Casting may include sand mold casting It makes, 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 can be set to 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.When being passed through electric current in the voice coil 210 Afterwards, the voice coil 210 is located at the magnetic formed in the first magnetic element 202, the first magnetic conductive component 214 and the second magnetic conductive component 206 , it will receive Ampere force effect, the ampere power drive voice coil 210 vibrates, and the vibration of voice coil 210 will drive the first oscillating plate 208, the vibration of the second oscillating plate 212 and vibration panel 214.Vibration panel 214 transmits the vibration by tissue and bone To auditory nerve, to make one to hear sound.The vibration panel 214 with directly can directly be contacted with human skin, Or it can be by 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 will form in magnetic circuit simultaneously, i.e., more magnetic induction line leaks to other than magnetic gap, not Voice coil, which can be passed through, influences bone-conduction speaker so that the magnetic induction intensity (or magnetic field strength) at voice coil position declines 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 described 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 far as possible densely to pass through voice coil, increases Magnetic induction intensity (or magnetic field strength) 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 voice coil vibrations for the electric energy for inputting bone-conduction speaker 200 The efficiency of mechanical energy).More descriptions about at least one second magnetic element may refer to Fig. 3 A-3G.

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 and step of implementing bone-conduction speaker are carried out 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 200 It 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 Loudspeaker 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 is a kind of Longitudinal cross section schematic 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 can be with Including any one or a few magnet described in the utility model.In some embodiments, the first magnetic element 302 can wrap The first magnet is included, the second magnetic element 308 may include the second magnet, and first magnet can phase with second magnet It is same or different.First magnetic conductive component 304 and/or the second magnetic conductive component 306 may include any one described in the utility model Kind or several permeability magnetic materials.The processing method of first magnetic conductive component 304 and/or the second magnetic conductive component 306 may include that this is practical Any one or a few processing method described in novel.In some embodiments, it the first magnetic element 302 and/or first leads Magnetic cell 304 can be set to axially symmetric structure.For example, the first magnetic element 302 and/or the first magnetic conductive component 304 can be Cylindrical body, cuboid or hollow ring-type (for example, shape that cross section is runway).In some embodiments, first is magnetic Element 302 and the first magnetic conductive component 304 can be coaxial cylindrical body, contain same or different diameter.In some implementations In example, the second magnetic conductive component 306 can be groove type structure.The groove type structure may include U-shaped section (such as Fig. 3 A institute Show).Second magnetic conductive component 306 of the groove type may include bottom plate and side wall.In some embodiments, the bottom plate and institute State side wall can be it is integrally formed, for example, the side wall can be extended to form by bottom plate in the direction perpendicular to bottom plate. In some embodiments, the bottom plate can connect institute by any one or a few connection type described in the utility model State side wall.Second magnetic element 308 can be set as cyclic annular or sheet.In some embodiments, the second magnetic element 308 can be with It is 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 second magnetic conduction The side wall of element 306.First magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and/or the second magnetic member Connection type between part 308 may include one or more combinations such as being bonded, being clamped, welding, riveting, being bolted.

Magnetic is formed between first magnetic element 302 and/or the first magnetic conductive component 304 and the inner ring of the second magnetic element 308 Gap.Voice coil 328 can be set in the magnetic gap.In some embodiments, second magnetic element 308 and the sound Circle 328 is equal relative to the height of the bottom plate of 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 and the second magnetic element 308 can form magnetic loop.In some embodiments In, magnetic circuit component 3100 can produce the first full field (also referred to as " total magnetic field of magnetic circuit component "), the first magnetic element 302 can produce the second magnetic field.First full field is by all components in the magnetic circuit component 3100 (for example, the first magnetic Property element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and the second magnetic element 308) generate magnetic field it is common It is formed.Magnetic field strength of first full field in the magnetic gap (can also be referred to as magnetic induction intensity or magnetic flux Density) it is greater than magnetic field strength of second magnetic field in the magnetic gap.In some embodiments, the second magnetic element 308 It can produce third magnetic field, magnetic field strength of first full field at the magnetic gap can be improved in the third magnetic field. The magnetic field strength that the first full field is improved in third magnetic field mentioned here refer to the presence of third magnetic field (that is, there are second Magnetic element 308) when the first full field the magnetic gap magnetic field strength be greater than no third magnetic field exist (that is, being not present Second magnetic element 308) when first full field.In other embodiments in the present specification, unless stated otherwise, magnetic circuit group Part indicates the structure comprising all magnetic elements and magnetic conductive component, and the first full field indicates the magnetic integrally generated by magnetic circuit component , the second magnetic field, third magnetic field ..., the magnetic field N respectively indicate the magnetic field as caused by corresponding magnetic element.In difference Embodiment in, generate second magnetic field (or third magnetic field ..., the magnetic field N) magnetic element can be it is identical , it can also be different.

In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the second magnetic element 308 it Between angle at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 and the second magnetism The direction of magnetization of element 308 and between angle between 45 degree and 135 degree.In some embodiments, the first magnetic element Angle between 302 direction of magnetization and the direction of magnetization of the second magnetic element 308 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 the second magnetic element 308 is directed toward outer ring (as schemed by the inner ring of the second magnetic element 308 Middle b institute 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, in the position of the second magnetic element 308, the direction of first full field is magnetic with second Angle between the direction of magnetization of element 308 is not higher than 90 degree.In some embodiments, in the position of the second magnetic element 308 Place, the angle between the direction in magnetic field that the first magnetic element 302 generates and the direction of magnetization of the second magnetic element 308 can be with It is the angle for being less than or equal to 90 degree such as 0 degree, 10 degree, 20 degree.

Compared with the magnetic circuit component of single magnetic element, magnetic in magnetic circuit component 3100 is can be improved in the second magnetic element 308 Total magnetic flux in gap, and then increase the magnetic induction intensity in magnetic gap.Also, under the action of the second magnetic element 308, Originally the magnetic induction line of diverging can be restrained to magnetic gap position, further increase the magnetic induction intensity in 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 where this principle, to concrete mode and step progress in form and details various for implementing magnetic circuit component 3100 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 ring structure or laminated structure.In another example magnetic circuit component 3100 may further include magnetism-guiding hood, the magnetism-guiding hood can enclose Around 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 is a kind of Longitudinal cross section schematic 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 upper surface of third magnetic element 310 connects the second magnetic element 308, and lower surface connects the second magnetic conductive component 306 Side wall.First magnetic element 302, the first magnetic conductive component 304, the second magnetic element 308 and/or third magnetic element 310 it Between can form magnetic gap.Voice coil 328 can be set in the magnetic gap.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306, the second magnetic element 308 and third magnetic element 310 can be with shapes At magnetic loop.In some embodiments, the direction of magnetization of the second magnetic element 308 can be with reference to the detailed of the utility model Fig. 3 A Description.

In some embodiments, magnetic circuit component 3200 can produce the first full field, and the first magnetic element 302 can produce Raw second magnetic field, magnetic field strength of first full field in the magnetic gap are greater than second magnetic field in the magnetic gap Interior magnetic field strength.In some embodiments, third magnetic element 310 can produce third magnetic field, and the third magnetic field can be with Improve magnetic field strength of 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 third magnetic element 310 is equal to or more than 90 degree.In some embodiments, The direction of magnetization of one magnetic element 302 is perpendicular to the lower surface of the first magnetic element 302 or upper surface straight up (such as the figure side a To shown), the direction of magnetization of third magnetic element 310 is directed toward lower surface (c in such as figure by the upper surface of third magnetic element 310 Shown in direction, the direction of magnetization on the right side of the first magnetic element 302, the first magnetic element 302 deflects clockwise 180 degree).

In some embodiments, at the position of third magnetic element 310, the direction of first full field and described the Angle between the direction of magnetization of three magnetic elements 310 is not higher than 90 degree.In some embodiments, in third magnetic element 310 Position at, the first magnetic element 302 generate the direction in magnetic field and the direction of magnetization of third magnetic element 310 between angle It can be the angle for being less than or equal to 90 degree such as 0 degree, 10 degree, 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 circuit component 3200 in magnetic gap, 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.

It is only above specific example to the description of the structure of magnetic circuit component 3200, is not considered as unique feasible Embodiment.For one of skill in the art, after the basic principle for understanding magnetic circuit component, it may not carry on the back In the case where from this principle, concrete mode and step progress in form and details various for implementing magnetic circuit component 3200 are repaired Just and change, but these modifications and variations are still within the scope of above description.For example, the second magnetic conductive component 306 can be Ring structure or laminated structure.In another example magnetic circuit component 3200 can not include the second magnetic conductive component 306.In another example magnetic circuit group Part 3200 can be further added to a few magnetic element.In some embodiments, the magnetic element further added Lower surface can connect the upper surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added with The direction of magnetization of third magnetic element 312 is opposite.In some embodiments, the magnetic element further added can connect The side wall of first magnetic element 302 and the second magnetic conductive component 306.The direction of magnetization of the magnetic element further added with The direction of magnetization of second magnetic element 308 is opposite.

Fig. 3 C is a kind of Longitudinal cross section schematic 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 3300 can produce the first full field, and the first magnetic element 302 can produce Raw second magnetic field, magnetic field strength of first full field in the magnetic gap are greater than second magnetic field in the magnetic gap Interior magnetic field strength.In some embodiments, the 4th magnetic element 312 can produce the 4th magnetic field, and the 4th magnetic field can be with Improve magnetic field strength of 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 (as schemed the direction a institute Show), the direction of magnetization of the 4th magnetic element 312 as the outer ring of the 4th magnetic element 312 be directed toward inner ring (as shown in the direction d 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, in the position of the 4th magnetic element 312, the direction of first full field and the described 4th Angle between the direction of magnetization of magnetic element 312 is not higher than 90 degree.In some embodiments, in the 4th magnetic element 312 Position, the angle between the direction in magnetic field that the first magnetic element 302 generates and the direction of magnetization of the 4th magnetic element 312 can To be the angle for being less than or equal to 90 degree such as 0 degree, 10 degree, 20 degree.

Compared with magnetic circuit component 3100, 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 circuit component 3300 in magnetic gap, 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.

It is only above specific example to the description of the structure of magnetic circuit component 3300, 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 where this principle, to concrete mode and step progress in form and details various for implementing magnetic circuit component 3300 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 ring structure or laminated structure.In another example magnetic circuit component 3300 can not include the second magnetic element 308.In another example magnetic circuit Component 3300 can be further added to a few magnetic element.In some embodiments, the magnetism member further added The lower surface of part can connect the upper surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added It is identical as the direction of magnetization of the first magnetic element 302.In some embodiments, the upper table of the magnetic element further added Face can connect the lower surface of the second magnetic element 308.The magnetic of the direction of magnetization of the magnetic element and the first magnetic element 302 Change contrary.

Fig. 3 D is a kind of Longitudinal cross section schematic of magnetic circuit component 3400 shown in some embodiments according to the present utility model. As shown in Figure 3D, unlike magnetic circuit component 3100, magnetic circuit component 3400 may further include the 5th magnetic element 314. 5th magnetic element 314 may include any one ferromagnetic material described in the utility model.In some embodiments, the 5th Magnetic element 314 can be set to axially symmetric structure.For example, the 5th magnetic element 314 can be cylindrical body, cuboid, or Hollow ring-type (for example, shape that cross section is runway).In some embodiments, the first magnetic element 302, the first magnetic conduction member Part 304 and/or the 5th magnetic element 314 can be coaxial cylindrical body, contain same or different diameter.5th magnetic member The thickness of part 314 and the first magnetic element 302 can be identical or different.5th magnetic element 314 can connect the first magnetic conduction member Part 304.In some embodiments, the thickness of the first magnetic element 302 and the first magnetic element 302, the 5th magnetic element 314 And first the ratio range of the sum of thickness of magnetic conductive component 304 be 0.4- 0.6.

In some embodiments, the direction of magnetization of the direction of magnetization of the 5th magnetic element 314 and the first magnetic element 302 it Between angle at 90 degree between 180 degree.In some embodiments, the direction of magnetization of the 5th magnetic element 314 and the first magnetism Angle between the direction of magnetization of element 302 is at 150 degree between 180 degree.In some embodiments, the 5th magnetic element 314 The direction of magnetization it is opposite with the direction of magnetization of the first magnetic element 302 (as shown, the direction a and the direction e).

Compared with magnetic circuit component 3100, magnetic circuit component 3400 further increases the 5th magnetic element 314.5th magnetic member Part 314 can inhibit leakage field of first magnetic element 302 in the direction of magnetization in magnetic circuit component 3400, to make the first magnetic member The magnetic field that part 302 generates can be more compressed in magnetic gap, thus improve the magnetic induction intensity in magnetic gap.

It is only above specific example to the description of the structure of magnetic circuit component 3400, is not considered as unique feasible Embodiment.For one of skill in the art, after the basic principle for understanding magnetic circuit component, it may not carry on the back In the case where from this principle, concrete mode and step progress in form and details various for implementing magnetic circuit component 3400 are repaired Just and change, but these modifications and variations are still within the scope of above description.For example, the second magnetic conductive component 306 can be Ring structure or laminated structure.In another example magnetic circuit component 3400 can not include the second magnetic element 308.In another example magnetic circuit group Part 3400 can be further added to a few magnetic element.In some embodiments, the magnetic element further added Lower surface can connect the upper surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added with The direction of magnetization of first magnetic element 302 is identical.In some embodiments, the upper surface of the magnetic element further added It can connect the lower surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added is magnetic with first The direction of magnetization of element 302 is opposite.In some embodiments, the magnetic element further added can connect the first magnetism Element 302 and the second magnetic conductive component 306, the direction of magnetization and the second magnetic element of the magnetic element further added 308 direction of magnetization is opposite.

Fig. 3 E is a kind of Longitudinal cross section schematic 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 3400, magnetic circuit component 3500 may further include third magnetic conductive component 316. In some embodiments, third magnetic conductive component 316 may include any one or a few magnetic conduction material described in the utility model Material.Permeability magnetic material included by first magnetic conductive component 304, the second magnetic conductive component 306 and/or third magnetic conductive component 316 can phase It is same or different.In some embodiments, third magnetic conductive component 316 can be set to symmetrical structure.For example, third magnetic conductive component 316 can be cylindrical body.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304, the 5th magnetic element 314 and/or third magnetic conductive component 316 can be coaxial cylindrical body, contain same or different diameter.Third magnetic conduction member Part 316 can connect the 5th magnetic element 314.In some embodiments, third magnetic conductive component 316 can connect the 5th magnetic member Part 314 and the second magnetic element 308.The third magnetic conductive component 316, the second magnetic conductive component 306 and the second magnetic element 308 can form a cavity, and the cavity may include the first magnetic element 302, the 5th magnetic element 314 and the first magnetic conduction Element 304.

Compared with magnetic circuit component 3400, magnetic circuit component 3500 further increases third magnetic conductive component 316.Third magnetic conduction member Part 316 can inhibit leakage field of the 5th magnetic element 314 in the direction of magnetization in magnetic circuit component 3500, to make the 5th magnetic member The magnetic field that part 314 generates can be more compressed in magnetic gap, thus improve the magnetic induction intensity in magnetic gap.

It is only above specific example to the description of the structure of magnetic circuit component 3500, is not considered as unique feasible Embodiment.For one of skill in the art, after the basic principle for understanding magnetic circuit component, it may not carry on the back In the case where from this principle, concrete mode and step progress in form and details various for implementing magnetic circuit component 3500 are repaired Just and change, but these modifications and variations are still within the scope of above description.For example, the second magnetic conductive component 306 can be Ring structure or laminated structure.In another example magnetic circuit component 3500 can not include the second magnetic element 308.In another example magnetic circuit group Part 3500 can be further added to a few magnetic element.In some embodiments, the magnetic element further added Lower surface can connect the upper surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added with The direction of magnetization of first magnetic element 302 is identical.In some embodiments, the upper surface of the magnetic element further added It can connect the lower surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added is magnetic with first The direction of magnetization of element 302 is opposite.In some embodiments, the magnetic element further added can connect the first magnetism Element 302 and the second magnetic conductive component 306, the direction of magnetization and the second magnetic element of the magnetic element further added 308 direction of magnetization is opposite.

Fig. 3 F is a kind of Longitudinal cross section schematic of magnetic circuit component 3600 shown in some embodiments according to the present utility model. As illustrated in Figure 3 F, unlike magnetic circuit component 3100, magnetic circuit component 3600 may further include one or more conductive elements Part (for example, the first conducting element 318, the second conducting element 320 and third conducting element 322).

The conducting element may include metal material, metal alloy compositions, inorganic non-metallic material or other conduction materials Material.Metal material may include gold, silver, copper, aluminium etc.；Metal alloy compositions see may include ferrous alloy, aluminum-based alloy material, Acid bronze alloy, zinc-containing alloy etc.；Inorganic non-metallic material may include graphite etc..The conducting element can be sheet, ring-type, It is netted etc..First conducting element 318 can be set in the upper surface of the first magnetic conductive component 304.Second conducting element 320 can connect Connect the first magnetic element 302 and the second magnetic conductive component 306.Third conducting element 322 can connect the first magnetic element 302 Side wall.In some embodiments, the first magnetic conductive component 304 can protrude from the first magnetic element 302 and form the first recess portion, third Conducting element 322 is set to first recess portion.In some embodiments, the first conducting element 318, the second conducting element 320 And third conducting element 322 may include identical or different conductive material.First conducting element 318, the second conducting element 320 and third conducting element 322 can be connected respectively by any one or more connection type described in the utility model Connect the first magnetic conductive component 304, the second magnetic conductive component 306 and/or the first magnetic element 302.

Magnetic gap is formed between first magnetic element 302, the first magnetic conductive component 304 and the inner ring of the second magnetic element 308. Voice coil 328 can be set in the magnetic gap.First magnetic element 302, the first magnetic conductive component 304, the second magnetic conductive component 306 and second magnetic element 308 can form magnetic loop.In some embodiments, the conducting element can reduce voice coil 328 induction reactance.For example, if voice coil 328 can nearby generate the first alternation induced magnetic field when voice coil 328 is passed through the first alternating current. First alternation induced magnetic field under the action of magnetic field, can make voice coil 328 generate induction reactance in the magnetic loop, hinder voice coil 328 Movement.When conducting element is arranged near voice coil 328 (for example, the first conducting element 318, the second conducting element 320 and the Three conducting elements 322), under the first alternation induced magnetic field effect, the conducting element can generate the second alternation electricity Stream.Third alternating current in the conducting element can generate the second alternation induced magnetic field, second alternation in its vicinity Induced magnetic field is contrary with the first alternation induced magnetic field, can weaken the first alternation induced magnetic field, to reduce The induction reactance of voice coil 328 increases the electric current in voice coil, improves the sensitivity of bone-conduction speaker.

It is only above specific example to the description of the structure of magnetic circuit component 3600, is not considered as unique feasible Embodiment.For one of skill in the art, after the basic principle for understanding magnetic circuit component, it may not carry on the back In the case where from this principle, concrete mode and step progress in form and details various for implementing magnetic circuit component 3600 are repaired Just and change, but these modifications and variations are still within the scope of above description.For example, the second magnetic conductive component 306 can be Ring structure or laminated structure.In another example magnetic circuit component 3600 can not include the second magnetic element 308.In another example magnetic circuit group Part 3500 can be further added to a few magnetic element.In some embodiments, the magnetic element further added Lower surface can connect the upper surface of the second magnetic element 308.The direction of magnetization of the magnetic element further added with The direction of magnetization of first magnetic element 302 is identical.

Fig. 3 G is a kind of Longitudinal cross section schematic of magnetic circuit component 3700 shown in some embodiments according to the present utility model. As shown in Figure 3 G, unlike magnetic circuit component 3500, magnetic circuit component 3700 may further include third magnetic element 310, 4th shape magnetic element 312, the 5th magnetic element 314, third magnetic conductive component 316, the 6th magnetic element 324 and the 7th are magnetic Element 326.Third magnetic element 310, the 4th magnetic element 312, the 5th magnetic element 314, third magnetic conductive component 316 and/or 6th magnetic element 324 and the 7th magnetic element 326 can be set to coaxial circular cylinder.

In some embodiments, the upper surface of the second magnetic element 308 connects the 7th magnetic element 326, the second magnetic member The lower surface of part 308 can connect third magnetic element 310.Third magnetic element 310 can connect the second magnetic conductive component 306. The upper surface of 7th magnetic element 326 can connect third magnetic conductive component 316.4th shape magnetic element 312 can connect second Magnetic conductive component 306 and the first magnetic element 302.6th magnetic element 324 can connect the 5th magnetic element 314, third is led Magnetic cell 316 and the 7th magnetic element 326.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304, Second magnetic conductive component 306, the second magnetic element 308, third magnetic element 310, the 4th magnetic element 312, the 5th magnetic element 314, third magnetic conductive component 316, the 6th magnetic element 324 and the 7th magnetic element 326 can be formed between magnetic loop and magnetic Gap.

In some embodiments, the direction of magnetization of the second magnetic element 308 can be with reference to detailed in the utility model Fig. 3 A Thin description, the direction of magnetization of third magnetic element 310 can refer to the detailed description of the utility model Fig. 3 B, the 4th magnetic element 312 direction of magnetization can be with reference to the detailed description in the utility model Fig. 3 C.

In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the 6th magnetic element 324 it Between angle can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization and the 6th of the first magnetic element 302 The direction of magnetization of magnetic element 324 and between angle between 45 degree and 135 degree.In some embodiments, the first magnetic member Angle between the direction of magnetization of part 302 and the direction of magnetization of the 6th magnetic element 324 is not higher 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 Scheme shown in the direction a), the direction of magnetization of the 6th magnetic element 324 is directed toward inner ring (g in such as figure by the outer ring of the 6th magnetic element 324 Shown in direction, the direction of magnetization on the right side of the first magnetic element 302, the first magnetic element 302 deflects clockwise 270 degree).In some embodiments, on same vertical direction, the direction of magnetization of the 6th magnetic element 324 and the 4th magnetic member The direction of magnetization of part 312 can be identical.

In some embodiments, at the position of the 6th magnetic element 324, the direction in the magnetic field that magnetic circuit component 3700 generates Angle between the direction of magnetization of the 6th magnetic element 324 is not higher than 90 degree.In some embodiments, in the 6th magnetic element At 324 position, between the direction in magnetic field that the first magnetic element 302 generates and the direction of magnetization of the 6th magnetic element 324 Angle can be the angle for being less than or equal to 90 degree such as 0 degree, 10 degree, 20 degree.

In some embodiments, the magnetization side of the direction of magnetization of first magnetic element 302 and the 7th magnetic element 326 Angle between can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 and the The direction of magnetization of seven magnetic elements 326 and between angle between 45 degree and 135 degree.In some embodiments, described first Angle between the direction of magnetization of magnetic element 302 and the direction of magnetization of the 7th magnetic element 326 is not higher than 90 degree.In some realities Apply in example, the direction of magnetization of the first magnetic element 302 perpendicular to the lower surface of the first magnetic element 302 or upper surface vertically to Upper (as shown in the figure direction a), the direction of magnetization of the 7th magnetic element 326 are directed toward upper table by the lower surface of the 7th magnetic element 326 (as shown in the direction f in figure, on the right side of the first magnetic element 302, the direction of magnetization of the first magnetic element 302 is along up time in face The inclined three-sixth turn in needle direction).In some embodiments, the direction of magnetization of the 7th magnetic element 326 and third magnetic element 310 The direction of magnetization can be opposite.

In some embodiments, at the 7th magnetic element 326, magnetic circuit component 3700 generate magnetic field direction with it is described Angle between the direction of magnetization of 7th magnetic element 326 is not higher than 90 degree.In some embodiments, in the 7th magnetic element At 326 position, between the direction in magnetic field that the first magnetic element 302 generates and the direction of magnetization of the 7th magnetic element 326 Angle can be the angle for being less than or equal to 90 degree such as 0 degree, 10 degree, 20 degree.

In magnetic circuit component 3700, third magnetic conductive component 316 magnetic circuit component 3700 can be generated it is magnetic circuit closed so that More magnetic induction line concentrates in the magnetic gap, inhibits leakage field to reach, increases the magnetic induction intensity at magnetic gap and mention The effect of sensitivity of high bone-conduction speaker.It is only above specific example to the description of the structure of magnetic circuit component 3700, The embodiment for being not considered as unique feasible.For one of skill in the art, magnetic circuit component is being understood After basic principle, may without departing substantially from this principle, to implement magnetic circuit component 3700 concrete mode and step into Row various modifications and variations in form and details, but these modifications and variations are still within the scope of above description.For example, Second magnetic conductive component 306 can be ring structure or laminated structure.In another example magnetic circuit component 3700 can not include the second magnetic Property element 308.In another example magnetic circuit component 3700 may further include at least one conducting element, the conducting element can be with Connect the first magnetic element 302, the 5th magnetic element 314, the first magnetic conductive component 304, the second magnetic conductive component 306 and/or Three magnetic conductive components 316.In some embodiments, magnetic circuit component 3700 can be further added to a few conducting element, described The conducting element further added can connect the second magnetic element 308, third magnetic element 310, the 4th magnetic element 312, At least one element in 6th magnetic element 324 and the 7th magnetic element 326.

Fig. 4 A is a kind of cross-sectional view 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-3G Part).As shown, magnetic element 400 can be it is cricoid.Magnetic element 400 may include inner ring 402 and outer ring 404. In some embodiments, the inner ring 402 and/or the shape of outer ring 404 can be circle, ellipse, triangle, quadrangle or Other arbitrary polygons.

Fig. 4 B is a kind of schematic diagram 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-3G).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 is 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 the first magnetic element 401, the second magnetic element 403 and third magnetic Property element 405.The direction of magnetization of first magnetic element 401, which can be, is directed toward upper surface by the lower surface of the first magnetic element 401 (i.e. perpendicular to paper outwardly direction).Second magnetic element 403 can be arranged around the first magnetic element 401.Second is magnetic Magnetic gap can be formed between the inner ring of element 403 and the inner ring of the first magnetic element 401.The magnetization of second magnetic element 403 Direction can be directed toward outer ring by the inner ring of the second magnetic element 403.The inner ring of third magnetic element 405 can connect the first magnetic The outer ring of property element 401, the outer ring of third magnetic element 405 can connect the inner ring of the second magnetic element 403.The magnetic member of third The direction of magnetization of part 405 can be directed toward inner ring by the outer ring of third magnetic element 403.

Fig. 4 D is the magnetic strength 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, the magnetic circuit component as shown in Fig. 3 A-3G) may include the first magnetic Property element 402 and the second magnetic element 404.The direction of magnetization of first magnetic element 402 can be the first magnetic element 402 It is directed toward upper surface (as shown by arrow a) in lower surface.First magnetic element 402 can produce the second magnetic field, and second magnetic field can To indicate that (solid line indicates in the presence of no second magnetic element 404 in figure, point in the second magnetic field by the line of magnetic induction Cloth), magnetic direction of second magnetic field at certain point is tangential direction of this on the line of magnetic induction.Second magnetic element The inner ring that 404 direction of magnetization can be the second magnetic element 404 is directed toward outer ring (as shown by arrow A).Second magnetic element 404 It can produce third magnetic field.The third magnetic field can also be indicated that (dotted line indicates magnetic no first in figure by the line of magnetic induction In the presence of element 402, the distribution in third magnetic field), magnetic direction of the third magnetic field at certain point is that the point exists Tangential direction on the third line of magnetic induction.Under the interaction in second magnetic field and the third magnetic field, the magnetic circuit group Part 400 can produce the first full field.Magnetic field strength of first full field at voice coil 406 be greater than second magnetic field or Magnetic field strength of the third magnetic field at voice coil 406.As shown, magnetic direction of second magnetic field at voice coil 406 It is less than or equal to 90 degree with the angle of the direction of magnetization of second magnetic element 404.

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, those skilled 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 modified, 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 a certain feature relevant 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 this specification in different location 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, combination including any new and useful process, machine, product or substance 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 is practical 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 coding.

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 process and method.Although above-mentioned disclosure In discussed by various examples it is 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 cover institute There are the amendment and equivalent combinations for meeting the utility model embodiment spirit and scope.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 spy required for the utility model object It levies more than the feature referred in claim.In fact, the feature of embodiment is complete less than the single embodiment of above-mentioned disclosure Portion's feature.

The number of description ingredient, number of attributes is used in some embodiments, it should be appreciated that such to 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 the variation that the number allows to have ± 20%.Correspondingly, in some embodiments In, numeric data used in description and claims is approximation, approximation feature according to 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 include:

First magnetic element；

First magnetic conductive component；

Second magnetic conductive component；And

At least one second magnetic element, at least one described second magnetic element around first magnetic element, and with institute It states and forms magnetic gap between the first magnetic element.

2. magnetic circuit component according to claim 1, the direction of magnetization of at least one second magnetic element and described the Angle between the direction of magnetization of one magnetic element is not less than 90 degree.

3. magnetic circuit component according to claim 1, further comprises:

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

4. magnetic circuit component according to claim 3, the direction of magnetization of at least one third magnetic element and described the Angle between the direction of magnetization of one magnetic element is not less than 90 degree.

5. magnetic circuit component according to claim 3, further comprises:

At least one the 4th magnetic element, wherein at least one described the 4th magnetic element is placed in the lower section of the magnetic gap simultaneously Connect first magnetic element and second magnetic conductive component.

6. magnetic circuit component according to claim 5, the direction of magnetization of at least one the 4th magnetic element and described the Between the direction of magnetization of one magnetic element between 45 degree and 135 degree.

7. magnetic circuit component according to claim 3, further comprises:

At least one the 5th magnetic element, wherein at least one described the 5th magnetic element connects first magnetic conductive component Upper surface.

8. magnetic circuit component according to claim 7, the direction of magnetization of at least one the 5th magnetic element and described the The angle of the direction of magnetization of one magnetic element is at 150 degree between 180 degree.

9. magnetic circuit component according to claim 7, the thickness of first magnetic element and first magnetic element, institute The ratio range for stating the sum of thickness of at least one the 5th magnetic element and first magnetic conductive component is 0.4-0.6.

10. the thickness of magnetic circuit component according to claim 7, at least one the 5th magnetic element is equal to described first The thickness of magnetic element.

11. the thickness of magnetic circuit component according to claim 7, at least one the 5th magnetic element is less than described first The thickness of magnetic element.

12. magnetic circuit component according to claim 7, further comprises:

Third magnetic conductive component, wherein the third magnetic conductive component connects the upper surface of the 5th magnetic element.

13. magnetic circuit component according to claim 7, first magnetic conductive component connects the upper table of first magnetic element Face, second magnetic conductive component include that bottom plate and side wall and first magnetic element connect second magnetic conductive component Bottom plate.

14. magnetic circuit component according to claim 7, further comprises:

At least one conducting element, wherein the conducting element connects first magnetic element, first magnetic conductive component, Or at least one element in second magnetic conductive component.