CN107948882A - A kind of bone-conduction speaker - Google Patents
A kind of bone-conduction speaker Download PDFInfo
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- CN107948882A CN107948882A CN201810015965.6A CN201810015965A CN107948882A CN 107948882 A CN107948882 A CN 107948882A CN 201810015965 A CN201810015965 A CN 201810015965A CN 107948882 A CN107948882 A CN 107948882A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
This application involves a kind of magnetic circuit component of bone-conduction speaker, including the first magnetic element, the first magnetic conductive component and the second magnetic conductive component.First magnetic element produces the first magnetic field, and 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 is placed in below the magnetic gap.At least one second magnetic element produces the second magnetic field, and magnetic induction intensity of first magnetic field at the magnetic gap is improved in second magnetic field.
Description
Technical field
This application involves a kind of bone-conduction speaker, more particularly to the magnetic circuit component in 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, user is heard sound.Air vibration is driven to produce sound by vibrating diaphragm relative to gas conduction speaker,
Osteoacusis vibrating speaker need drive user soft tissue and bone vibrated, 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, so as to export the machine of bigger
Tool power.Improve sensitivity and seem even more important for the higher bone-conduction speaker of power requirement.
Summary
The application is the magnetic circuit component on a kind of bone-conduction speaker.The magnetic circuit component can include, the first magnetic member
Part, first magnetic element produce the first magnetic field；First magnetic conductive component；Second magnetic conductive component, which surround should
First magnetic element, and form magnetic gap between first magnetic element；And at least one second magnetic element, this is at least
One the second magnetic element is placed in below the magnetic gap, which produces the second magnetic field, second magnetic
Improve the magnetic induction intensity of first magnetic field at the magnetic gap in field.
According to some embodiments of the present application, which further comprises at least one 3rd magnetic element, this
Three magnetic elements connect second magnetic conductive component, which produces the 3rd magnetic field, and the 3rd magnetic field carries
The high magnetic field intensity of first magnetic field at the magnetic gap.
According to some embodiments of the present application, which further comprises at least one 4th magnetic element, this is extremely
Few 4th magnetic element is located between second magnetic conductive component and at least one 3rd magnetic element.
According to some embodiments of the present application, which further comprises magnetism-guiding hood, the magnetism-guiding hood around this first
Magnetic element, first magnetic conductive component, second magnetic conductive component and second magnetic element.
According to some embodiments of the present application, which further comprises at least one 5th magnetic element, this is extremely
Few 5th magnetic element connects the upper surface of first magnetic conductive component, which produces the 5th magnetic
, the magnetic field intensity of first magnetic field at the magnetic gap is improved in the 5th magnetic field.
According to some embodiments of the present application, which further comprises the 3rd magnetic conductive component, the 3rd magnetic conduction member
Part connects the upper surface of the 5th magnetic element, and the 3rd magnetic conductive component is configured as suppressing first magnetic field and the second magnetic field
Field strength is revealed.
According to some embodiments of the present application, which further comprises at least one conducting element, the conductive element
Part connects at least one element in first magnetic element, first magnetic conductive component, or second magnetic element.
A part of bells and whistles of the application can illustrate in the following description.By to being described below and accordingly
The inspection of attached drawing or production or the understanding of operation to embodiment, the skill of a part of bells and whistles of the application for this area
Art personnel are obvious.Herein disclosed characteristic can pass through various methods, the means to specific embodiments described below
Practice or use with combination are achieved and reach.
Attached drawing describes
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, the application
Schematic description and description be used for explain the application, do not form the restriction to the application.In the various figures, identical label
Represent same parts.
Fig. 1 is a kind of construction module figure of bone-conduction speaker according to some embodiments of the present application；
Fig. 2 is a kind of Longitudinal cross section schematic of bone-conduction speaker according to some embodiments of the present application；
Fig. 3 A are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 B are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 C are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 D are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 E are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 F are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 G are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 H are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 3 M are a kind of Longitudinal cross section schematics of magnetic circuit component according to some embodiments of the present application；
Fig. 4 A are a kind of cross-sectional views of magnetic element according to some embodiments of the present application；
Fig. 4 B are a kind of schematic diagrames of magnetic element according to some embodiments of the present application；
Fig. 4 C are the direction of magnetization schematic diagrames of magnetic element in magnetic circuit component according to some embodiments of the present application；
Fig. 4 D are the line of magnetic induction distribution maps of magnetic element in magnet assembly according to some embodiments of the present application；
Fig. 5 is a kind of structure diagram of bone-conduction speaker according to some embodiments of the present application.
Specifically describe
In order to illustrate more clearly of the technical solution of embodiments herein, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that drawings in the following description are only some examples or the implementation of the application
Example, without creative efforts, can also be according to these attached drawings for those of ordinary skill in the art
The application is applied to other similar to scene.It should be appreciated that these exemplary embodiments are provided just for the sake of making association area
Technical staff better understood when and then realize the present invention, and not limit the scope of the invention in any way.Unless
Apparent or separately explain from language environment, identical label represents identical structure or operation in figure.
As shown in the application and claims, unless context clearly prompts exceptional situation, " one ", "one", " one
The word such as kind " and/or "the" not refers in particular to odd number, may also comprise plural number.It is, in general, that term " comprising " is only prompted to wrap with "comprising"
Include clearly identify the step of and element, and these steps and element do not form 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 ".Term " one embodiment " represents
" at least one embodiment "；Term " another embodiment " expression " at least one further embodiment ".The correlation of other terms is determined
Justice provides in will be described below.Hereinafter, without loss of generality, in describing the present invention osteoacusis correlation technique when, " bone will be used
The description of conduction speaker " or " bone conduction earphone ".The description is only a kind of form of osteoacusis application, for the field
For those of ordinary skill, " loudspeaker " or " earphone " can also be replaced with other similar words, such as " player ", " hearing aid "
Deng.In fact, the various implementations in the present invention can be easily applied on the hearing device of other non-loudspeaker classes.
For example, for those skilled in the art, may be without departing substantially from this after the basic principle of bone-conduction speaker is understood
In the case of principle, the various amendments in form and details are carried out with step to the concrete mode for implementing bone-conduction speaker and are changed
Become, especially, ambient sound pickup and processing function are added in bone-conduction speaker, the loudspeaker is realized the work(of hearing aid
Energy.For example, the microphone such as microphone can pick up the sound of user/wearer's surrounding environment, under certain algorithm, by sound
(or the electric signal produced) is sent to bone-conduction speaker part after sound processing.I.e. bone-conduction speaker can pass through necessarily
Modification, adds the functions of picking up surrounding sounds, and after certain signal processing by bone-conduction speaker part by sound
User/wearer is passed to, so as to fulfill the function of ossiphone.As an example, algorithm mentioned here can wrap
Include noise elimination, automatic growth control, acoustic feedback suppression, wide dynamic range compression, active Context awareness, active anti-noise, orientation
The combination of the one or more such as processing, tinnitus processing, multi-channel wide dynamic range compression, active chauvent's criterion, volume control.
The present invention provides a kind of highly sensitive bone-conduction speaker.In certain embodiments, the bone-conduction speaker
It can include magnetic circuit component.The magnetic circuit component can include the first magnetic element, the first magnetic conductive component, the second magnetic conductive component with
And one or more second magnetic elements.First magnetic element can produce the first magnetic field, the second magnetic conductive component ring
Around first magnetic element, and magnetic gap is formed between first magnetic element.One or more of magnetic elements
The lower section of the magnetic gap is placed in, and produces the second magnetic field.First magnetic field is improved in the magnetic gap in second magnetic field
The magnetic induction intensity at place.One or more of the magnetic circuit component the second magnetic element can be strong in raising magnetic gap magnetic field
In the case of the sensitivity for spending, improving bone-conduction speaker, the volume and weight of magnetic circuit component are reduced, improves bone-conduction speaker
Efficiency, 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,
Easy to which the bone-conduction speaker is combined with wearable intelligent equipment, so as to fulfill 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, intelligent watch, 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 with fact
Now more personalized function.
Fig. 1 is a kind of construction module figure of bone-conduction speaker 100 according to some embodiments of the present application.Such as figure
Described, bone-conduction speaker 100 can include a magnetic circuit component 102,104, support components 106 of a vibration component with
An and storage assembly 108.
Magnetic circuit component 102 can provide magnetic field.The magnetic field, which can be used for the signal containing acoustic information being converted into, to shake
Dynamic signal.In certain embodiments, the acoustic information can be included with the video of 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 beyond bone-conduction speaker 100 and produces, stores or pass
Delivery system.It is a kind of or more that the signal containing acoustic information can include electric signal, optical signal, magnetic signal, mechanical signal etc.
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 certain embodiments, bone-conduction speaker 100 can be obtained by various ways
The signal containing acoustic information, the acquisition of the signal can be wired or wireless, can be it is real-time or delay.
For example, bone-conduction speaker 100 can be by wired or wirelessly receive the electric signal containing acoustic information, can also
(for example, storage assembly 108) obtains data directly from storage medium, produces voice signal.In another example in ossiphone
It can include the component with sound collection, by picking up the sound in environment, the mechanical oscillation of sound are converted into electricity
Signal, obtains the electric signal for meeting particular requirement after being handled by amplifier.In certain 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
The combination of the one or more 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 can include radio communication, free space optical communication, acoustic communication and electromagnetic induction etc..Wherein without
The communication of line electricity can 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 lead to
Believe (NFC) and other technologies for operating in ISM band (such as 2.4GHz etc.)；Free space optical communication can include visible ray,
Infra-red signal etc.；Acoustic communication can include sound wave, ultrasonic wave signal etc.；Electromagnetic induction can be including 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 produce mechanical oscillation.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
Change.Coexisting and changing for a variety of different type energy may be included during conversion.For example, electric signal can by transducing head
To be directly changed into mechanical oscillation, sound is produced.For another example acoustic information may be embodied in optical signal, one kind is specifically changed
Energy device can realize the process that vibration signal is converted to by optical signal.It is other can be coexisted in the transducing head course of work and
The kind of energy of conversion includes thermal energy, magnetic field energy etc..The energy conversion regime of transducing head can include moving-coil type, it is electrostatic,
Piezoelectric type, moving-iron type, pneumatic type, electromagnetic type etc..The frequency response range and tonequality 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 the cylindrical coil of winding and one is vibrated
Body (for example, a vibrating reed), vibrating body vibration sounding, vibrating body are driven 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 of permanent magnet etc., can all pass bone
The audio quality for leading loudspeaker 100 brings very big influence.In vibration component 104 vibrating body can be mirror-symmetrical structure,
Centrosymmetric structure or asymmetrical structure；The cavernous structure of interruption can be provided with vibrating body, produces vibrating body
The displacement of bigger, so as to allow bone-conduction speaker to realize the sensitivity of higher, improves vibration and the output power of sound；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 magnetic circuit component 102, vibration component 104 and/or storage assembly 108.
Support component 106 can include one or more housings, one or more connectors.One or more of housings 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 housing and magnetic circuit component 102, vibration component 104 and/or storage assembly 108.
Storage assembly 108 can store the signal containing acoustic information.In certain embodiments, storage assembly 108 can be with
Including one or more storage devices.The storage device can include Direct Attached Storage (DirectAttached
Storage), network attached storage (Network Attached Storage) and storage area network (Storage Area
The storage device in storage system such as Network).Storage device can 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 storage (ROM).Wherein RAM can 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 can be deposited including magnetic bubble
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 storage, Erasable Programmable Read Only Memory EPROM, may be programmed
Read-only storage, 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.
The description to bone-conduction speaker structure is only specific example above, is not considered as the reality of unique feasible
Apply scheme., may be not after the basic principle of bone-conduction speaker is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation bone-conduction speaker in the case of this principle
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 perform one or more sound signal processing algorithms.The sound letter
Number Processing Algorithm can be modified or strengthen to the voice signal.Such as to voice signal carry out noise reduction, acoustic feedback suppress,
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 other similar, or more any combination processing, these amendments
With change still within the claims of the present invention.In another example bone-conduction speaker 100 can include one or more
A sensor, such as temperature sensor, humidity sensor, velocity sensor, displacement sensor etc..The sensor can gather
User information or environmental information.
Fig. 2 is a kind of Longitudinal cross section schematic of bone-conduction speaker 200 according to some embodiments of the present application.Such as
Shown in figure, bone-conduction speaker 200 can include the first magnetic element 202, the first magnetic conductive component 204, the second magnetic conductive component
206th, the first oscillating plate 208, voice coil loudspeaker voice coil 210, the second oscillating plate 212 and vibration panel 214.
The magnetic element described in this application refers to the element that can produce magnetic field, such as magnet etc..The magnetic member
Part can have the direction of magnetization, and the direction of magnetization refers to the magnetic direction inside the magnetic element.First magnetic element
202 can include one or more magnet.In certain embodiments, the magnet can include metal alloy magnet, ferrite
Deng.Wherein, metal alloy magnet can include neodymium iron boron, SmCo, aluminium nickel cobalt, siderochrome cobalt, ferro-aluminum boron, iron carbon aluminium, or similar,
Or many of combination.Ferrite can include barium ferrite, barium ferrite, U.S. Mn ferrite, lithium Mn ferrite, or similar
, or many of combination.
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 produces).The magnetizer can
With including the element being process by soft magnetic materials.In certain embodiments, the soft magnetic materials can 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 certain embodiments, can be added by casting, plasticity
The method of one or more combinations such as work, machining, powder metallurgy processes the magnetizer.Casting can include sand mold and cast
Make, model casting, compression casting, centrifugal casting etc.；Plastic working can include rolling, casting, forging, punching press, extruding, draw
Combined Deng one or more；Machining can include turning, milling, planing, grinding etc..In certain embodiments, it is described to lead
The processing method of magnet can include 3D printing, numerically-controlled machine tool etc..First magnetic conductive component 204, the second magnetic conductive component 206 and first
Connection mode between magnetic element 202 such as can include be bonded, be clamped, welding, riveting, being bolted at the one or more groups
Close.In certain 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 other have axially symmetric structure.
In certain embodiments, magnetic gap can be formed between the first magnetic element 202 and the second magnetic conductive component 206.Sound
Circle 210 can be arranged in the magnetic gap.Voice coil loudspeaker voice coil 210 can be connected 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 electric current is passed through in the voice coil loudspeaker voice coil 210,
The voice coil loudspeaker 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,
Ampere force can be subject to act on, Ampere force driving voice coil loudspeaker voice coil 210 vibrates, the vibration of voice coil loudspeaker voice coil 210 can drive the first oscillating plate 208,
The vibration of second oscillating plate 212 and vibration panel 214.The vibration is delivered to by vibration panel 214 by tissue with bone to be listened
Nerve is felt, so as to make one to hear sound.The vibration panel 214, or can with directly can directly be contacted with human skin
To pass through the vibration transfer layer and skin contact that are made of certain material.
In certain embodiments, for the bone-conduction speaker with single magnetic element, the magnetic induction line at voice coil loudspeaker voice coil is passed through
And it is uneven, in divergent shape.Leakage field may be formed in magnetic circuit at the same time, i.e., more magnetic induction line is leaked to beyond magnetic gap, not
Voice coil loudspeaker voice coil can be passed through, so that the magnetic induction intensity (or magnetic field intensity) at voice coil position declines, influence bone-conduction speaker
Sensitivity.Therefore, bone-conduction speaker 200 may further include at least one second magnetic element and the/at least one 3rd
Magnetic conductive component (not shown).At least one second magnetic element and/at least one 3rd magnetic conductive component can suppress magnetic
Feel the leakage of line, constrain the magnetic strength line morphology through voice coil loudspeaker voice coil so that the more magnetic induction line level of trying one's best densely passes through voice coil loudspeaker voice coil, increases
Magnetic induction intensity (or magnetic field intensity) at strong voice coil position, so as to improve the sensitivity of bone-conduction speaker 200, and then is improved
The electric energy for inputting bone-conduction speaker 200 (that is, is converted into voice coil vibrations by the mechanical conversion efficiency of bone-conduction speaker 200
The efficiency of mechanical energy).More descriptions at least one second magnetic element may refer to Fig. 3 A-3M.
The description to 200 structure of bone-conduction speaker is only specific example above, is not considered as unique feasible
Embodiment., may after the basic principle of bone-conduction speaker is understood for one of skill in the art
In the case of without departing substantially from this principle, the concrete mode for implementing bone-conduction speaker is carried 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
It can include shell, connector etc..The connector can connect vibration panel 214 and shell.In another example bone-conduction speaker
200 can 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 are a kind of Longitudinal cross section schematics of magnetic circuit component 3100 according to some embodiments of the present application.Such as figure
Shown in 3A, magnetic circuit component 3100 can include the first magnetic element 302, the first magnetic conductive component 304, the first full field change element
306 and second magnetic element 308.In certain 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 this application.First magnetic element 302 can include the first magnet, and second is magnetic
Element 308 can include the second magnet, and first magnet can be identical or different with second magnet.First magnetic conductive component
304 can include any one or a few permeability magnetic material described in this application, such as mild steel, silicon steel sheet, silicon steel sheet, iron oxygen
Body etc..In some embodiments, the first magnetic element 302 and/or the first magnetic conductive component 304 could be provided as axially symmetric structure.The
One magnetic element 302 and/or the first magnetic conductive component 304 can be cylinders.In certain embodiments, the first magnetic element 302
It can be coaxial cylinder with the first magnetic conductive component 304, contain identical or different diameter.In certain embodiments, first
It can be any one in magnetic element or magnetic conductive component that full field, which changes element 306,.First full field changes element 306
And/or second magnetic element 308 can be set as ring-type or sheet.In certain embodiments, the second magnetic element 308 can be with
First magnetic element 302, the first magnetic conductive component 304 and/or the first full field change the coaxial circular cylinder of element 306, contain
The identical or different inner ring of diameter and/outer shroud.First magnetic conductive component 304 and/or the first full field change the processing side of element 306
Method can include any one or a few processing method described in this application.
The upper surface of first magnetic element 302 can connect the lower surface of the first magnetic conductive component 304, the second magnetic element
308 can connect the first magnetic element 302 and the first full field change element 306.First magnetic element 302, the first magnetic conduction
The connection mode that element 304, the first full field change between 306 and/or second magnetic element 308 of element can be based on the application
Described in any one or a few connection mode.In certain embodiments, the first magnetic element 302, the first magnetic conductive component
304th, the first full field, which changes 306 and/or second magnetic element 308 of element, can form magnetic loop and magnetic gap.
In certain embodiments, magnetic circuit component 3100 can produce the first full field (also referred to as " and magnetic circuit component it is total
Magnetic field "), the first magnetic element 302 can produce the second magnetic field, magnetic field intensity of first full field in the magnetic gap
More than magnetic field intensity of second magnetic field in the magnetic gap.In certain embodiments, the second magnetic element 308 can produce
Raw 3rd magnetic field, the 3rd magnetic field can improve magnetic field intensity of second magnetic field at the magnetic gap.Described first
Full field is by all components in the magnetic circuit component 3100 (for example, the first magnetic element 302, the first magnetic conductive component 304,
One full field changes element 306 and second magnetic element 308) magnetic field that produces is collectively forming.First full field is in institute
The magnetic field intensity (can also be referred to as magnetic induction intensity or magnetic density) stated in magnetic gap exists more than second magnetic field
Magnetic field intensity in the magnetic gap.In certain embodiments, the second magnetic element 308 can produce the 3rd magnetic field, and described
Three magnetic fields can improve magnetic field intensity of first full field at the magnetic gap.3rd magnetic field mentioned here improve the
The magnetic field intensity of one full field refers to the first full field when with the presence of the 3rd magnetic field (that is, there are the second magnetic element 308)
When the magnetic field intensity of the magnetic gap is more than and there is (that is, there is no the second magnetic element 308) without the 3rd magnetic field, first is complete
Magnetic field.In other embodiment in the present specification, unless stated otherwise, magnetic circuit component represent comprising all magnetic elements and
The structure of magnetic conductive component, the first full field represent the magnetic field that is integrally produced by magnetic circuit component, the second magnetic field, the 3rd magnetic field ...,
N magnetic fields represent the magnetic field as caused by corresponding magnetic element respectively.In various embodiments, second magnetic field is produced
(or the 3rd magnetic field ..., N magnetic fields) magnetic element can be it is identical, can not also be same.
In certain 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 can be at 0 degree between 180 degree.In certain embodiments, the direction of magnetization of the first magnetic element 302 and the second magnetic
The direction of magnetization of property element 308 and between angle between 45 degree and 135 degree.In certain embodiments, the first magnetic element
Angle between 302 direction of magnetization and the direction of magnetization of the second magnetic element 308 can be not higher than 90 degree.
In certain embodiments, at the position of the second magnetic element 308, direction and the second magnetic of first full field
Property element 308 the direction of magnetization between angle be not higher than 90 degree.In certain embodiments, in the position of the second magnetic element 308
Put place, the angle between the direction in magnetic field that the first magnetic element 302 produces and the direction of magnetization of the second magnetic element 308 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 another example the direction of magnetization of the first magnetic element 302 perpendicular to
The lower surface or upper surface of first magnetic element 302 are straight up (as schemed shown in a directions), the magnetization of the second magnetic element 308
Direction as the outer shroud of the second magnetic element 308 be directed toward inner ring (as shown in c directions in figure, on the right side of the first magnetic element 302,
The direction of magnetization of first magnetic element 302 deflects 270 degree clockwise).
Compared with the magnetic circuit component of single magnetic element, the first full field in magnetic circuit component 3100 changes element 306 can
To improve the total magnetic flux in magnetic gap, and then increase the magnetic induction intensity in magnetic gap.Also, change member in the first full field
Under the action of part 306, the magnetic induction line of diverging can be restrained to magnetic gap position originally, further increase the magnetic strength in magnetic gap
Answer intensity.
The description to the structure of magnetic circuit component 3100 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3100 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3100 can be into one
Step includes magnetism-guiding hood, and the magnetism-guiding hood can include the first magnetic element 302, the first magnetic conductive component 304, the change of the first full field
306 and second magnetic element 308 of element.
Fig. 3 B are a kind of Longitudinal cross section schematics of magnetic circuit component 3200 according to some embodiments of the present application.Such as figure
Shown in 3B, unlike magnetic circuit component 3100, magnetic circuit component 3200 may further include the 3rd magnetic element 310.
The lower surface of 3rd magnetic element 310 can connect the first full field and change element 306.3rd magnetic element 310
Connection mode between changing element 306 with the first full field can be connected based on described in this application any one or a few
Mode.In certain embodiments, the first magnetic element 302, the first magnetic conductive component 304, the first full field change element 306, the
Magnetic gap can be formed between two magnetic elements 308 and/or the 3rd magnetic element 310.In certain embodiments, magnetic circuit component 3200
The first full field can be produced, the first magnetic element 302 can produce the second magnetic field, and first full field is in the magnetic gap
Interior magnetic field intensity is more than magnetic field intensity of second magnetic field in the magnetic gap.In certain embodiments, the 3rd is magnetic
Element 310 can produce the 3rd magnetic field, and the 3rd magnetic field can improve magnetic field of second magnetic field at the magnetic gap
Intensity.
In certain embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the 3rd magnetic element 310 it
Between angle can be at 0 degree between 180 degree.In certain embodiments, the direction of magnetization of the first magnetic element 302 and the 3rd magnetic
The direction of magnetization of property element 310 and between angle between 45 degree and 135 degree.In certain embodiments, the first magnetic element
Angle between 302 direction of magnetization and the direction of magnetization of the 3rd magnetic element 310 can be equal to or more 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 straight up
(as shown in figure a directions), the direction of magnetization of the 3rd magnetic element 310 are directed toward outer shroud (as schemed by the inner ring of the 3rd magnetic element 310
Shown in middle b directions, on the right side of the first magnetic element 302, the direction of magnetization of the first magnetic element 302 is inclined clockwise
It turn 90 degrees).
In certain embodiments, at the position of the 3rd magnetic element 310, direction and the second magnetic of first full field
Property element 308 the direction of magnetization between angle be not higher than 90 degree.In certain embodiments, in the position of the 3rd magnetic element 310
Put place, the angle between the direction in magnetic field that the first magnetic element 302 produces and the direction of magnetization of the 3rd magnetic element 310 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 the 3rd magnetic element 310.3rd magnetic member
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 the 3rd magnetic element 310, magnetic induction line can further be restrained to magnetic gap position, so as to increase
Add the magnetic induction intensity in magnetic gap.
The description to the structure of magnetic circuit component 3200 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3200 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3200 can be into one
Step includes magnetism-guiding hood, and the magnetism-guiding hood can include the first magnetic element 302, the first magnetic conductive component 304, the change of the first full field
Element 306, the second magnetic element 308 and the 3rd magnetic element 310.
Fig. 3 C are a kind of structure diagrams of magnetic circuit component 3300 according to some embodiments of the present application.Such as Fig. 3 C
Shown, unlike magnetic circuit component 3200, magnetic circuit component 3300 may further include the 4th magnetic element 312.
The lower surface of 4th magnetic element 312 can connect the upper surface that the first full field changes element 306, and the 4th is magnetic
The upper surface of element 312 can connect the lower surface of the second magnetic element 308.4th magnetic element 312 changes with the first full field
Connection mode between 306 and second magnetic element 308 of dependent element can be based on it is described in this application any one or it is several
Kind connection mode.In certain embodiments, the first magnetic element 302, the first magnetic conductive component 304, the first full field change element
306th, magnetic gap can be formed between the second magnetic element 308, the 3rd magnetic element 310 and/or the 4th magnetic element 312.Second
The direction of magnetization of 308 and the 3rd magnetic element 310 of magnetic element can be respectively with reference to retouching in the application 4A and/or 4B in detail
State.
In certain embodiments, magnetic circuit component 3300 can produce the first full field, and the first magnetic element 302 can produce
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 certain embodiments, the 4th magnetic element 312 can produce the 3rd magnetic field, and the 3rd magnetic field can carry
Magnetic field intensity of high second magnetic field at the magnetic gap.
In certain embodiments, the direction of magnetization of first magnetic element 302 and the magnetization side of the 4th magnetic element 312
Angle between can be at 0 degree between 180 degree.In certain embodiments, the direction of magnetization of the first magnetic element 302 and the
The direction of magnetization of four magnetic elements 312 and between angle between 45 degree and 135 degree.In certain embodiments, described first
Angle between the direction of magnetization of magnetic element 302 and the direction of magnetization of the 4th magnetic element 312 can be equal to or more than 90 degree.
In certain embodiments, the direction of magnetization of the first magnetic element 302 is perpendicular to the lower surface or upper surface of the first magnetic element 302
Straight up (as shown in figure a directions), the direction of magnetization of the 4th magnetic element 312 is referred to by the upper surface of the 4th magnetic element 312
To lower surface (as shown in d directions in figure, on the right side of the first magnetic element 302, the direction of magnetization edge of the first magnetic element 302
Deflection 180 degree clockwise).
In certain embodiments, at the position of the 4th magnetic element 312, direction and the 4th magnetic of first full field
Property element 312 the direction of magnetization between angle be not higher than 90 degree.In certain embodiments, in the position of the 4th magnetic element 312
Put place, the angle between the direction in magnetic field that the first magnetic element 302 produces and the direction of magnetization of the 4th magnetic element 312 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 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 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, so as to increase
Add the magnetic induction intensity in magnetic gap.
The description to the structure of magnetic circuit component 3300 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3300 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3200 can be into one
Step includes one or more conducting elements, and one or more of conducting elements can connect the first magnetic element 302, first lead
At least one element in magnetic cell 304, the second magnetic element 308, the 3rd magnetic element 310 and the 4th magnetic element 312.
Fig. 3 D are a kind of Longitudinal cross section schematics of magnetic circuit component 3400 according to some embodiments of the present application.Such as figure
Shown in 3D, unlike magnetic circuit component 3300, magnetic circuit component 3400 may further include magnetism-guiding hood 314.
Magnetism-guiding hood 314 can include any one or a few permeability magnetic material described in this application, for example, mild steel, silicon
Steel disc, silicon steel sheet, ferrite etc..Magnetism-guiding hood 314 can be connected by any one or a few connection mode described in this application
Connect the first full field and change element 306, the second magnetic element 308, the 3rd magnetic element 310 and the 4th magnetic element 312.Lead
The processing method of magnetic cover 314 can include any one processing method described in this application, for example, casting, plastic working, cutting
Cut one or more combinations such as processing, powder metallurgy.In certain embodiments, magnetism-guiding hood 314 can include bottom plate and side wall, institute
It is loop configuration to state side wall.In certain embodiments, the bottom plate and side wall can be integrally formed.In certain embodiments,
The bottom plate can connect the side wall by any one or a few connection mode described in this application.
Compared with magnetic circuit component 3300, magnetic circuit component 3400 further increases magnetism-guiding hood 314.Magnetism-guiding hood 314 can press down
The leakage field of magnetic circuit component 3300 processed, effectively reduces the length of magnetic path and magnetic resistance so that more magnetic induction line can by magnetic gap,
Improve the magnetic induction intensity in magnetic gap.
The description to the structure of magnetic circuit component 3400 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3400 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3400 can be into one
Step includes one or more conducting elements, and one or more of conducting elements can connect the first magnetic element 302, first lead
At least one element in magnetic cell 304, the second magnetic element 308, the 3rd magnetic element 310 and the 4th magnetic element 312.Again
For example, magnetic circuit component 3200 may further include the 5th magnetic element, the lower surface connection first of the 5th magnetic element
The upper surface of magnetic conductive component 304, the direction of magnetization of the 5th magnetic element and the direction of magnetization of first magnetic element 302
Conversely.
Fig. 3 E are a kind of Longitudinal cross section schematics of magnetic circuit component 3500 according to some embodiments of the present application.Such as figure
Shown in 3E, unlike magnetic circuit component 3200, the first full field of magnetic circuit component 3500 changes the magnetic member of element 306 and second
The joint face of part 308 can be wedge shape section.
Compared with magnetic circuit component 3100, the first full field of magnetic circuit component 3500 changes 306 and second magnetic element of element
308 joint face is configured to wedge shape section, magnetic induction line can smoothly be transferred.Meanwhile the wedge shape section can facilitate
The assembling that first full field changes 306 and second magnetic element 308 of element can simultaneously reduce assembling assembly number, reduce bone and pass
Lead the weight of loudspeaker.
The description to the structure of magnetic circuit component 3500 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3500 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3500 can be into one
Step include one or more conducting elements, the conducting element can connect the first magnetic element 302, the first magnetic conductive component 304,
At least one element in second magnetic element 308 and the 3rd magnetic element 310.In another example magnetic circuit component 3500 can be into
One step includes the 5th magnetic element, and the lower surface of the 5th magnetic element connects the upper surface of the first magnetic conductive component 304, described
The direction of magnetization of 5th magnetic element is opposite with the direction of magnetization of first magnetic element 302.In certain embodiments, magnetic circuit
Component 3500 may further include a magnetism-guiding hood, and the magnetism-guiding hood can include the first magnetic element 302, the first magnetic conduction member
Part 304, the first full field change element 306, the second magnetic element 308 and the 3rd magnetic element 310.
Fig. 3 F are a kind of Longitudinal cross section schematics of magnetic circuit component 3600 according to some embodiments of the present application.Such as figure
Shown in 3F, unlike magnetic circuit component 3100, magnetic circuit component 3600 may further include the 5th magnetic element 316.One
In a little embodiments, the 5th magnetic element 316 can include one or more magnet.The magnet can be included described in the application
Any one or a few ferromagnetic material.In certain embodiments, the 5th magnetic element 316 can include the first magnet, and first
Magnetic element 302 can include the second magnet, and first magnet can be identical with the ferromagnetic material that second magnet includes
It is or different.In certain embodiments, the 5th magnetic element 316, the first magnetic element 302 and the first magnetic conductive component 304 can be with
Axially symmetric structure is arranged to, for example, the 5th magnetic element 316, the first magnetic element 302 and the first magnetic conductive component 304 can be with
It is cylinder.In certain embodiments, in certain embodiments, the 5th magnetic element 316, the first magnetic element 302 and
One magnetic conductive component 304 can be coaxial cylinder, contain identical or different diameter.For example, the first magnetic conductive component 304
Diameter can be more than the first magnetic element 302 and/or the 5th magnetic element 316, and the first magnetic element 302 and/or the 5th is magnetic
The side wall of element 316 can form the first recess and/or the second recess.In certain embodiments, the thickness of the second magnetic element 316
The sum of thickness of degree and first magnetic element 302, second magnetic element 316 and first magnetic conductive component 304
Ratio range be 0.4-0.6.First magnetic conductive component 304 and first magnetic element 302, second magnetic element 316
And the ratio range of the sum of thickness of first magnetic conductive component 304 is 0.5-1.5.
In certain embodiments, the direction of magnetization of the direction of magnetization of the 5th magnetic element 316 and the first magnetic element 302 it
Between angle at 150 degree between 180 degree.In certain embodiments, the direction of magnetization of the 5th magnetic element 316 and the first magnetism
Angle between the direction of magnetization of element 302 is at 90 degree between 180 degree.For example, the direction of magnetization of the 5th magnetic element 316 with
The direction of magnetization of first magnetic element 302 is opposite (as shown in the figure, a directions and e directions).
Compared with magnetic circuit component 3100, magnetic circuit component 3600 further increases the 5th magnetic element 316.5th magnetic member
Part 326 can suppress leakage field of first magnetic element 302 in the direction of magnetization in magnetic circuit component 3600, so that the first magnetic member
The magnetic field that part 302 produces can be more compressed in magnetic gap, thus improves the magnetic induction intensity in magnetic gap.
The description to the structure of magnetic circuit component 3600 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3600 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.In certain embodiments, magnetic circuit component
3600 may further include one or more conducting elements, and one or more of conducting elements can connect the first magnetic member
At least one element in part 302, the first magnetic conductive component 304, the second magnetic element 308 and the 5th magnetic element 316, example
The first recess and/or second recess as described in being arranged at one or more of conducting elements.In some embodiments
In, magnetic circuit component 3600 can be further added to a few magnetic element, and the magnetic element further added can connect
Connect the first full field and change element 306.In certain embodiments, magnetic circuit component 3600 may further include a magnetism-guiding hood,
It is magnetic that the magnetism-guiding hood includes the first magnetic element 302, the first magnetic conductive component 304, the first full field change element 306, second
308 and the 5th magnetic element 316 of element.
Fig. 3 G are a kind of Longitudinal cross section schematics of magnetic circuit component 3700 according to some embodiments of the present application.Magnetic circuit
Component 3700 can include the first magnetic element 302, the first magnetic conductive component 304, the first full field change element 306, the second magnetic
Property element 308, the 3rd magnetic element 310, the 4th magnetic element 312, the 5th magnetic element 316, the 6th magnetic element 318,
Seven magnetic elements 320 and the second ring-type element 322.First magnetic element 302, the first magnetic conductive component 304, the first full field change
Dependent element 306, the second magnetic element 308, the 3rd magnetic element 310, the 3rd magnetic element 310, the 4th magnetic element 312 and
5th magnetic element 316, may be referred to detailed description in the application Fig. 3 A, 3B, 3C, 3D, 3E and/or 3F.In some implementations
In example, the first full field, which changes 306 and/or second ring-type element 322 of element, can include annular magnet element or annular magnetic conduction
Element.The annular magnet element can include any one or a few ferromagnetic material described in this application, and the annular is led
Magnetic cell can include any one or a few permeability magnetic material described in this application.
In certain embodiments, the 6th magnetic element 318 can connect the 5th magnetic element 316 and the second ring-type element
322, the 7th magnetic element 320 can connect the 3rd magnetic element 310 and the second ring-type element 322.In certain embodiments,
First magnetic element 302, the 5th magnetic element 316, the second magnetic element 308, the 3rd magnetic element 310, the 4th magnetic element
312nd, the 6th magnetic element 318 and/or the 7th magnetic element 320 change member with first magnetic conductive component 304, the first full field
306 and second ring-type element 322 of part can form magnetic loop.
The direction of magnetization of second magnetic element 308 may be referred to the detailed description in the application Fig. 3 A, the 3rd magnetic element
310th, the direction of magnetization of the 4th magnetic element 312 and the 5th magnetic element 316 can respectively with reference to the application Fig. 3 B, 3C and
The detailed description of 3F.
In certain embodiments, the direction of magnetization of first magnetic element 302 and the magnetization side of the 6th magnetic element 318
Angle between can be at 0 degree between 180 degree.In certain embodiments, the direction of magnetization of the first magnetic element 302 and the
The direction of magnetization of six magnetic elements 318 and between angle between 45 degree and 135 degree.In certain embodiments, described first
Angle between the direction of magnetization of magnetic element 302 and the direction of magnetization of the 6th magnetic element 318 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 straight up
(as shown in figure a directions), the direction of magnetization of the 6th magnetic element 318 are directed toward inner ring (as schemed by the outer shroud of the 6th magnetic element 318
Shown in middle f directions, on the right side of the first magnetic element 302, the direction of magnetization of the first magnetic element 302 is inclined clockwise
Turn 270 degree).In certain embodiments, on same vertical direction, the direction of magnetization of the 6th magnetic element 318 is magnetic with second
The direction of magnetization of element 308 can be identical.In certain embodiments, the direction of magnetization of the first magnetic element 302 is perpendicular to first
The lower surface or upper surface of magnetic element 302 are straight up (as schemed shown in a directions), the direction of magnetization of the 7th magnetic element 320
As the lower surface of the 7th magnetic element 320 be directed toward upper surface (as shown in e directions in figure, on the right side of the first magnetic element 302,
The direction of magnetization of first magnetic element 302 inclined three-sixth turn clockwise).In certain embodiments, the 7th magnetic element
320 direction of magnetization can be identical with the direction of magnetization of the 3rd magnetic element 312.
In certain embodiments, at the position of the 6th magnetic element 318, the direction in the magnetic field that magnetic circuit component 3700 produces
Angle between the direction of magnetization of the 6th magnetic element 318 is not higher than 90 degree.In certain embodiments, it is magnetic the 6th
At the position of element 318, the direction of magnetization of direction and the 6th magnetic element 318 in the magnetic field that the first magnetic element 302 produces it
Between angle can be 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.
In certain embodiments, the direction of magnetization of first magnetic element 302 and the magnetization side of the 7th magnetic element 320
Angle between can be at 0 degree between 180 degree.In certain embodiments, the direction of magnetization of the first magnetic element 302 and the
The direction of magnetization of seven magnetic elements 320 and between angle between 45 degree and 135 degree.In certain embodiments, described first
Angle between the direction of magnetization of magnetic element 302 and the direction of magnetization of the 7th magnetic element 320 is not higher than 90 degree.
In certain embodiments, at the position of the 7th magnetic element 320, the direction in the magnetic field that magnetic circuit component 3700 produces
Angle between the direction of magnetization of the 7th magnetic element 320 is not higher than 90 degree.In certain embodiments, it is magnetic the 7th
At the position of element 320, the direction of magnetization of direction and the 7th magnetic element 320 in the magnetic field that the first magnetic element 302 produces it
Between angle can be 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.
In certain embodiments, it can be annular magnet element that the first full field, which changes element 306,.In this case,
The direction of magnetization that first full field changes element 306 can be with the magnetization side of the second magnetic element 308 or the 4th magnetic element 312
To identical.For example, on the right side of the first magnetic element 302, the direction of magnetization that the first full field changes element 306 can be by first
The outer shroud that full field changes element 306 is directed toward inner ring.In certain embodiments, the second ring-type element 322 can be annular magnet
Element.In this case, the direction of magnetization of the second ring-type element 322 can be with the 6th magnetic element 318 or the 7th magnetic member
The direction of magnetization of part 320 is identical.For example, on the right side of the first magnetic element 302, the direction of magnetization of the second ring-type element 322 can
To be directed toward inner ring by the outer shroud of the second ring-type element 322.
In magnetic circuit component 3700, multiple magnetic elements can improve total magnetic flux, and different magnetic elements interact,
It can suppress magnetic induction line leakage, improve the magnetic induction intensity at magnetic gap, improve the sensitivity of bone-conduction speaker.
The description to the structure of magnetic circuit component 3700 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3700 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.In certain embodiments, magnetic circuit component
3700 may further include one or more conducting elements, and one or more of conducting elements can connect the first magnetic member
Part 302, the first magnetic conductive component 304, the second magnetic element 308, the 3rd magnetic element 310, the 4th magnetic element 312, the 5th magnetic
At least one element in property element 316, the 6th magnetic element 318 and the 7th magnetic element 320.
Fig. 3 H are a kind of Longitudinal cross section schematics of magnetic circuit component 3800 according to some embodiments of the present application.Such as figure
Shown in 3H, unlike magnetic circuit component 3700, magnetic circuit component 3800 may further include magnetism-guiding hood 314.
Magnetism-guiding hood 314 can include any one or a few permeability magnetic material described in this application, for example, mild steel, silicon
Steel disc, silicon steel sheet, ferrite etc..Magnetism-guiding hood 314 can be connected by any one or a few connection mode described in this application
Connect the first magnetic element 302, the first full field changes element 306, the second magnetic element 308, the 3rd magnetic element the 310, the 4th
Magnetic element 312, the 5th magnetic element 316, the 6th magnetic element 318, the 7th magnetic element 320 and the second ring-type element
322.The processing method of magnetism-guiding hood 314 can include any one processing method described in this application, for example, casting, plasticity
One or more combinations such as processing, machining, powder metallurgy.In certain embodiments, magnetism-guiding hood can include at least one
Bottom plate and side wall, the side wall are loop configuration.In certain embodiments, the bottom plate and side wall can be integrally formed.
In some embodiments, the bottom plate can connect the side by any one or a few connection mode described in this application
Wall.For example, magnetism-guiding hood 314 can include the first bottom plate, the second bottom plate and side wall, first bottom plate and side wall can be one
Body formed, second bottom plate can connect the side by any one or a few connection mode described in this application
Wall.
In magnetic circuit component 3800, magnetism-guiding hood 314 can produce magnetic circuit component 3800 magnetic circuit closed so that more
Magnetic induction line is concentrated in the magnetic gap in the magnetic circuit component 3800, reach suppress leakage field, increase magnetic gap at magnetic induction it is strong
The effect of sensitivity of degree and raising bone-conduction speaker.
The description to the structure of magnetic circuit component 3800 is only specific example above, is not considered as unique feasible
Embodiment., may be not after the basic principle of bone magnetic circuit component is understood for one of skill in the art
It is various in the concrete mode and step progress form and details to implementation magnetic circuit component 3800 in the case of this principle
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3800 can be into one
Step includes one or more conducting elements, and one or more of conducting elements can connect the first magnetic element 302, first lead
Magnetic cell 304, the second magnetic element 308, the 3rd magnetic element 310, the 4th magnetic element 312, the 5th magnetic element 316,
At least one element in six magnetic elements 318 and the 7th magnetic element 320.
Fig. 3 M are a kind of Longitudinal cross section schematics of magnetic circuit component 3900 according to some embodiments of the present application.Such as figure
Shown in 3M, unlike magnetic circuit component 3100, magnetic circuit component 3900 may further include one or more conducting element (examples
Such as, the first conducting element 324, the second conducting element 326 and the 3rd conducting element 328).
The description of the conducting element and conducting element 318, conducting element 320 is similar with conducting element 322, its correlation is retouched
State and be not repeated here.
On description to the structure of magnetic circuit component 3900 be only specific example, be not considered as the reality of unique feasible
Apply scheme.For one of skill in the art, after the basic principle of bone magnetic circuit component is understood, it may not carry on the back
In the case of from this principle, repaiied to implementing the concrete mode of magnetic circuit component 3900 with various in step progress form and details
Just and change, but these modifications and variations are still within the scope of above description.For example, magnetic circuit component 3900 can be further
Including at least one magnetic element and/or magnetic conductive component.
Fig. 4 A are a kind of cross-sectional views of magnetic element structure according to some embodiments of the present application.It is described
Magnetic element 400 can be adapted in the application in any magnetic circuit component (for example, magnetic circuit component shown in Fig. 3 A-3M).Such as figure
Shown, magnetic element 400 can be cricoid.Magnetic element 400 can include inner ring 402 and outer shroud 404.In some implementations
In example, the shape of the inner ring 402 and/or outer shroud 404 can be circle, ellipse, triangle, quadrangle or other any polygon
Shape.
Fig. 4 B are a kind of schematic diagrames of magnetic element structure according to some embodiments of the present application.The magnetic member
Part can be adapted in the application in any magnetic circuit component (for example, magnetic circuit component shown in Fig. 3 A-3M).It is as shown in the figure, described
Magnetic element can be rearranged by multiple magnets.The both ends of any one magnet of the magnet can be with adjacent magnet
Both ends connect or there are certain spacing.Spacing between multiple magnets can be identical or different.In certain embodiments, it is described
Magnetic element can be made of magnet (for example, magnet 408-2,408-4, and 408-6) equidistant arrangement of 2 or 3 sheets.
The shape of the magnet of the sheet can be sector, quadrangle etc..
Fig. 4 C are the direction of magnetization schematic diagrames of magnetic element in magnetic circuit component according to some embodiments of the present application.
As described in Figure, the magnetic circuit component can include the first magnetic element 401, the second magnetic element 403 and the 3rd magnetic element
405.The direction of magnetization of first magnetic element 401 can be directed toward upper surface (i.e. vertically by the lower surface of the first magnetic element 401
In paper outwardly direction).Second magnetic element 403 can be set around the first magnetic element 401.Second magnetic element 403
Inner ring and the first magnetic element 401 inner ring between can form magnetic gap.The direction of magnetization of second magnetic element 403 can be with
Outer shroud is directed toward by the inner ring of the second magnetic element 403.The inner ring of 3rd magnetic element 405 can connect the first magnetic element 401
Outer shroud, the outer shroud of the 3rd magnetic element 405 can connect the inner ring of the second magnetic element 403.The magnetic of 3rd magnetic element 405
Inner ring can be directed toward by the outer shroud of the 3rd magnetic element 403 by changing direction.
Fig. 4 D are the line of magnetic inductions of the magnetic element in a kind of magnetic circuit component according to some embodiments of the present application
Schematic diagram.As shown in the figure, magnetic circuit component 400 (for example, magnetic circuit component as shown in Fig. 3 A-3M) can include the first magnetic element
402 and second magnetic element 404.The direction of magnetization of first magnetic element 402 can be the lower surface of the first magnetic element 402
It is directed toward upper surface (as shown by arrow a).First magnetic element 402 can produce the second magnetic field, and second magnetic field can be by magnetic
The line of induction represents (solid line is represented in the presence of no second magnetic element 404 in figure, the distribution in the second magnetic field), described
Magnetic direction of second magnetic field at certain point is tangential direction of this on the line of magnetic induction.The magnetic of second magnetic element 404
Change the inner ring that direction can be the second magnetic element 404 and be directed toward outer shroud (as shown by the arrowb).Second magnetic element 404 can produce
Raw 3rd magnetic field.3rd magnetic field can also be represented that (dotted line is represented in no first magnetic element 402 in figure by the line of magnetic induction
In the presence of, the distribution in the 3rd magnetic field), magnetic direction of the 3rd magnetic field at certain point is this o'clock in the 3rd magnetic strength
Answer the tangential direction on line.Under the interaction in second magnetic field and the 3rd magnetic field, the magnetic circuit component 400 can be with
Produce the first full field.Magnetic field intensity of first full field at voice coil loudspeaker voice coil 406 is more than second magnetic field or the described 3rd
Magnetic field intensity of the magnetic field at voice coil loudspeaker voice coil 406.As shown in the figure, magnetic direction of second magnetic field at voice coil loudspeaker voice coil 406 and described the
The angle of the direction of magnetization of two magnetic elements 404 is less than or equal to 90 degree.
Fig. 5 is a kind of structure diagram of bone-conduction speaker 5000 according to some embodiments of the present application.Such as
Shown in figure, bone-conduction speaker 5000 can include the first magnetic element 502, the first magnetic conductive component 510, the second magnetic element
504th, the 3rd magnetic element 506, the second magnetic conductive component 508, packing ring 514, voice coil loudspeaker voice coil 512, the first oscillating plate 516, stent 518,
Two oscillating plates 520 and vibration panel 522.The lower surface of first magnetic element 502 connects the inner wall of the second magnetic conductive component 508.
The upper surface of first magnetic element 502 connects the lower surface of the first magnetic conductive component 510.The lateral wall of second magnetic element 504 connects
Connect 508 madial wall of the second magnetic conductive component.3rd magnetic element 506 in the lower section of the second magnetic element 504, meanwhile, the 3rd is magnetic
The lateral wall of element 506 connects the madial wall of the second magnetic conductive component 508；The madial wall of 3rd magnetic element 506 connects the first magnetic
The lateral wall of property element 502；The lower surface of 3rd magnetic element 506 connects the inner wall of the second magnetic conductive component 508；First magnetic member
Magnetic gap can be formed between part 502, the first magnetic conductive component 510 and the second magnetic element 504, the 3rd magnetic element 506.Voice coil loudspeaker voice coil
512 can be positioned in the magnetic gap.In certain embodiments, voice coil loudspeaker voice coil 512 can be track type shown in Fig. 5 or
Other geometries, such as triangle, rectangle, square, ellipse, pentagon or other irregular shapes.Voice coil loudspeaker voice coil 512 connects
Stent 518 is connect, stent 518 connects the first oscillating plate 516, and the first oscillating plate 516 passes through 514 and second magnetic conductive component 508 of packing ring
Connection.The lower surface of second oscillating plate 520 is connected with stent 518, and upper surface and the vibration panel 522 of the second oscillating plate 520 connect
Connect.In certain embodiments, the second magnetic element 504 can be made of polylith magnetic element, its as shown in Figure 5 can be by 4 pieces
Magnetic element 541,542,543,544 forms.The shape that polylith magnetic element surrounds can be the track type shown in Fig. 5, also may be used
To be other geometries, such as triangle, rectangle, square, ellipse, pentagon or other irregular shapes.3rd
Magnetic element 506 can be made of polylith magnetic element, its as shown in Figure 5 can be by 4 pieces of magnetic elements 561,562,563,564
Composition.The shape that polylith magnetic element surrounds can be the track type shown in Fig. 5 or other geometries, such as three
Angular, rectangle, square, ellipse, pentagon or other irregular shapes.As described in other embodiment in the application
, the second magnetic element 504 or the 3rd magnetic element 506 can be replaced by the different magnetic of the direction of magnetization of multiple interconnections
Property element, the magnetic element that the direction of magnetization of the multiple interconnection is different can be improved in bone-conduction speaker 500 between magnetic
Magnetic field intensity at gap, so as to improve the sensitivity of bone-conduction speaker 500.
In certain embodiments, the first magnetic element 502, the first magnetic conductive component 510, the second magnetic element 504, the 3rd magnetic
Property element 506, the second magnetic conductive component 508, packing ring 514, voice coil loudspeaker voice coil 512, the first oscillating plate 516, stent 518, the second oscillating plate 520
And/or it can be connected in vibration panel 522 between each element by any one or a few connection mode described in this application.
For example, the first magnetic element 502, the second magnetic element 504, the 3rd magnetic element 506 can be by way of bonding with first
510 and/or second magnetic conductive component 508 of magnetic conductive component connects.In another example packing ring 514 can pass through back-off structure and the second magnetic conduction
Element 508 connects, further, packing ring 514 can by way of back-off structure adds bonding with the second magnetic conductive component 508 and/
Or second magnetic element 504 connect.In certain embodiments, the first oscillating plate 516 and/or the second oscillating plate 520 can be set
For one or more coaxial ring bodies, multiple struts of oriented center influx are set in the multiple ring body, its influx center with
The center of first oscillating plate 516 and/or the second oscillating plate 520 is consistent.The multiple strut stagger setting.The multiple strut is
Either curved bar or part are that straight bar part is curved bar to straight-bar, it is preferable that the multiple strut is curved bar.In some embodiments
In, the outer surface of vibration panel 522 can be plane, or curved surface.Such as the outer surface of vibration panel 522 is Fig. 5 institutes
The spirogyrate cambered surface shown.
Basic conception is described above, it is clear that to those skilled in the art, foregoing invention discloses only
As an example, and the restriction to the application is not formed.Although do not clearly state herein, those skilled in the art may
Various modifications, improvement and amendment are carried out to the application.Such modification, improvement and amendment are proposed in this application, so such
Modification, improve, correct the spirit and scope for still falling within the application example embodiment.
Meanwhile the application has used particular words to describe embodiments herein.Such as " one embodiment ", " one implements
Example " and/or " some embodiments " mean and at least one embodiment of the application relevant a certain feature, structure or feature.Therefore,
It should be emphasized that simultaneously it is noted that " embodiment " or " one embodiment " that is referred to twice or repeatedly in diverse location in this specification
Or " alternate embodiment " is not necessarily meant to refer to the same embodiment.In addition, certain in one or more embodiments of the application
A little feature, structure or features can carry out appropriate combination.
In addition, it will be understood by those skilled in the art that each side of the application can be by some with patentability
Species or situation are illustrated and described, including any new and useful process, machine, the combination of product or material or to him
Any new and useful improvement.Correspondingly, the various aspects of the application can be performed completely by hardware, can completely by
Software (including firmware, resident software, microcode etc.) is performed, can also performed by combination of hardware.Hardware above or software
It is referred to alternatively as " data block ", " module ", " engine ", " unit ", " component " or " system ".In addition, each side of the application can
The computer product in one or more computer-readable mediums can be shown as, which compiles including computer-readable program
Code.
In addition, except clearly stating in non-claimed, the order of herein described processing element and sequence, digital alphabet
Using or other titles use, be not intended to limit the order of the application flow and method.Although by each in above-mentioned disclosure
Kind of example discusses some it is now recognized that useful inventive embodiments, but it is to be understood that, such details only plays explanation
Purpose, appended claims are not limited in the embodiment disclosed, on the contrary, claim is intended to cover and all meets the application
The amendment of embodiment spirit and scope and equivalent combinations.For example, although system component described above can be set by hardware
It is standby to realize, but can also be only achieved by the solution of software, such as pacify on existing server or mobile equipment
Fill described system.
Similarly, it is noted that in order to simplify herein disclosed statement, so as to help real to one or more invention
Apply the understanding of example, above in the description of the embodiment of the present application, sometimes by various features merger to one embodiment, attached drawing or
In descriptions thereof.But this disclosure method is not meant to carry in the required aspect ratio claim of the application object
And feature it is more.In fact, the feature of embodiment will be less than whole features of the single embodiment of above-mentioned disclosure.
Description component, the numeral of number of attributes are used in some embodiments, it should be appreciated that such to be used for embodiment
The numeral of description, has used qualifier " about ", " approximation " or " generally " etc. to modify in some instances.Unless in addition say
Bright, " about ", " approximation " or the numeral that " generally " shows allow the change for having ± 20%.Correspondingly, in some embodiments
In, the numeric data used in description and claims is approximation, approximation feature according to needed for separate embodiment
It can change.In certain embodiments, numeric data is considered as defined significant digit and is retained using general digit
Method.Although it is used to confirm that the Numerical Range of its scope range and data are approximation in some embodiments of the application, specific real
Apply in example, being set in for such numerical value is reported as precisely as possible in feasible region.
Finally, it will be understood that embodiment described herein is only illustrating the principle of the embodiment of the present application.Other
Deformation may also belong to scope of the present application.Therefore, as an example, not a limit, the alternative configuration of the embodiment of the present application is visual
To be consistent with teachings of the present application.Correspondingly, embodiments herein is not limited only to the implementation that the application is clearly introduced and described
Example.
Claims (15)
1. a kind of magnetic circuit component of bone-conduction speaker, the magnetic circuit component includes：
First magnetic element, first magnetic element produce the first magnetic field；
First magnetic conductive component；
Second magnetic conductive component, second magnetic conductive component around first magnetic element, and with first magnetic element it
Between form magnetic gap；And
At least one second magnetic element, at least one second magnetic element are placed in below the magnetic gap, it is described at least
One the second magnetic element produces the second magnetic field, and magnetic strength of first magnetic field at the magnetic gap is improved in second magnetic field
Answer intensity.
2. the magnetic circuit component described in claim 1, the direction of magnetization and first magnetic of at least one second magnetic element
Angle between the direction of magnetization of property element is between 45 degree and 135 degree.
3. the magnetic circuit component described in claim 1, further comprises：
At least one 3rd magnetic element, wherein, the 3rd magnetic element connection second magnetic conductive component, described at least one
A 3rd magnetic element produces the 3rd magnetic field, and it is strong that magnetic field of first magnetic field at the magnetic gap is improved in the 3rd magnetic field
Degree.
4. the magnetic circuit component described in claim 3, the direction of magnetization and first magnetic of at least one 3rd magnetic element
Property element the direction of magnetization between angle be not less than 90 degree.
5. the magnetic circuit component described in claim 1, further comprises：
At least one 4th magnetic element, at least one 4th magnetic element be located at second magnetic conductive component with it is described extremely
Between few 3rd magnetic element.
6. the magnetic circuit component described in claim 5, the direction of magnetization and first magnetic of at least one 4th magnetic element
Property element the direction of magnetization between angle be not less than 90 degree.
7. the magnetic circuit component in claim 1-6 described in any claim, further comprises：
Magnetism-guiding hood, the magnetism-guiding hood is around first magnetic element, first magnetic conductive component, second magnetic conductive component with
And second magnetic element.
8. the magnetic circuit component described in claim 1, wherein, second magnetic conductive component and at least one second magnetic element
It is connected, the joint face includes wedge shape section.
9. the magnetic circuit component described in claim 1, further comprises：
At least one 5th magnetic element, wherein, at least one 5th magnetic element connects first magnetic conductive component
Upper surface, at least one 5th magnetic element produce the 5th magnetic field, and first magnetic field is improved in institute in the 5th magnetic field
State the magnetic field intensity at magnetic gap.
10. the magnetic circuit component described in claim 9, the direction of magnetization and first magnetic of at least one 5th magnetic element
The angle of the direction of magnetization of property element is at 150 degree between 180 degree.
11. the magnetic circuit component described in claim 9, the thickness of at least one 5th magnetic element and the described first magnetic member
The ratio range of the sum of the thickness of part, at least one 5th magnetic element and first magnetic conductive component is 0.4-0.6.
12. the magnetic circuit component described in claim 9, the thickness of the 5th magnetic element is less than or equal to the described first magnetic member
The thickness of part.
13. the magnetic circuit component described in claim 9, further comprises：
3rd magnetic conductive component, wherein, the 3rd magnetic conductive component connects the upper surface of the 5th magnetic element, and the described 3rd leads
Magnetic cell is configured as suppressing the field strength leakage in first magnetic field and the second magnetic field.
14. the magnetic circuit component described in claim 1, 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 element.
15. a kind of bone-conduction speaker, the bone-conduction speaker includes：
Vibration component, the vibration component include voice coil loudspeaker voice coil and at least one oscillating plate；And
Any magnetic circuit components of claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015965.6A CN107948882A (en) | 2018-01-08 | 2018-01-08 | A kind of bone-conduction speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015965.6A CN107948882A (en) | 2018-01-08 | 2018-01-08 | A kind of bone-conduction speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107948882A true CN107948882A (en) | 2018-04-20 |
Family
ID=61937451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810015965.6A Pending CN107948882A (en) | 2018-01-08 | 2018-01-08 | A kind of bone-conduction speaker |
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