CN108347675A - A kind of bone-conduction speaker - Google Patents
A kind of bone-conduction speaker Download PDFInfo
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- CN108347675A CN108347675A CN201810015659.2A CN201810015659A CN108347675A CN 108347675 A CN108347675 A CN 108347675A CN 201810015659 A CN201810015659 A CN 201810015659A CN 108347675 A CN108347675 A CN 108347675A
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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 components of bone-conduction speaker.The magnet assembly generates the first full field, and the magnetic circuit component includes the first magnetic element, the first magnetic conductive component and the second magnetic conductive component.First magnetic element generates the second magnetic field.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 the lower section of the magnetic gap, and magnetic field intensity of first full field in the magnetic gap is more than magnetic field intensity of second magnetic field in the magnetic gap.
Description
Technical field
This application involves the magnetic circuit components in a kind of bone-conduction speaker more particularly to bone-conduction speaker.
Background technology
Bone-conduction speaker can convert the electrical signal to mechanical oscillation signal, and vibration signal is passed through tissue and bone
Head is conducted into cochlea, and user is made to hear sound.Air vibration is driven to generate sound by vibrating diaphragm relative to gas conduction speaker,
Osteoacusis vibrating speaker need drive user soft tissue and bone vibrate, thus its required mechanical output compared with
It is high.Improving the sensitivity of bone-conduction speaker can make electric energy be converted into the more efficient of mechanical energy, to export the machine of bigger
Tool power.Improve sensitivity seems even more important for the higher bone-conduction speaker of power requirement.
Summary
The application is the magnetic circuit component about a kind of bone-conduction speaker.The magnetic circuit component generates the first full field, the magnetic
Road component may include the first magnetic element, which generates the second magnetic field；First magnetic conductive component；Second magnetic conduction member
Part, second magnetic conductive component form magnetic gap around first magnetic element between first magnetic element；And at least one
A second magnetic element, at least one second magnetic element are placed in the lower section of the magnetic gap, and first full field is between the magnetic
Magnetic field intensity in gap is more than the magnetic field intensity of second magnetic field in the magnetic gap.
According to some embodiments of the present application, which may further include at least one third magnetic element,
The third magnetic element connects second magnetic conductive component.
According to some embodiments of the present application, which may further include at least one 4th magnetic element,
At least one 4th magnetic element is located between second magnetic conductive component and at least one third magnetic element.
According to some embodiments of the present application, which may further include magnetism-guiding hood, which surround should
First magnetic element, first magnetic conductive component, second magnetic conductive component and second magnetic element.
According to some embodiments of the present application, which may further include at least one 5th magnetic element,
At least one 5th magnetic element connects the upper surface of first magnetic conductive component.
According to some embodiments of the present application, which may further include at least one conducting element, this is led
Electric device connects at least one of first magnetic element, first magnetic conductive component or second magnetic element element.
A part of bells and whistles of the application can illustrate in the following description.By to being described below and accordingly
The understanding of the inspection of attached drawing or production or operation to embodiment, a part of bells and whistles of the application are for art technology
Personnel are apparent.Herein disclosed characteristic can by the various methods of specific embodiments described below, means and
The practice or use of combination are achieved and reach.
Attached drawing describes
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, the application
Illustrative embodiments and their description for explaining the application, do not constitute the restriction to the application.In the various figures, identical label
Indicate same parts.
Fig. 1 is the structure mould block diagram according to a kind of bone-conduction speaker shown in some embodiments of the present application；
Fig. 2 is according to a kind of Longitudinal cross section schematic of bone-conduction speaker shown in some embodiments of the present application；
Fig. 3 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Fig. 4 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Fig. 5 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Fig. 6 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Fig. 7 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Fig. 8 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Fig. 9 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Figure 10 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Figure 11 is according to a kind of Longitudinal cross section schematic of magnetic circuit component shown in some embodiments of the present application；
Figure 12 is according to a kind of cross-sectional view of magnetic element shown in some embodiments of the present application；
Figure 13 is according to a kind of schematic diagram of magnetic element shown in some embodiments of the present application；
Figure 14 is the direction of magnetization schematic diagram according to magnetic element in magnetic circuit component shown in some embodiments of the present application；
Figure 15 is the line of magnetic induction distribution map according to magnetic element in magnet assembly shown in some embodiments of the present application；
Figure 16 is according to a kind of structural schematic diagram of bone-conduction speaker shown in some embodiments of the present application.
It specifically describes
It is required in being described below to embodiment to make in order to illustrate more clearly of the technical solution of embodiments herein
Attached drawing is briefly described.It should be evident that the accompanying drawings in the following description is only some examples or the implementation of the application
Example, for those of ordinary skill in the art for, without creative efforts, can also be according to these attached drawings
The application is applied to other similar to scene.It should be appreciated that providing these exemplary embodiments just for the sake of making related field
Technical staff better understood when so that realize the present invention, be not intended to 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 words such as kind " and/or "the" not refer in particular to odd number, may also comprise plural number.It is, in general, that term " comprising " only prompts to wrap with "comprising"
Include clearly identify the step of and element, and these steps and element do not constitute one it is exclusive enumerate, method or equipment
The step of may also including other or element.Term "based" is " being based at least partially on ".Term " one embodiment " indicates
" at least one embodiment "；Term " another embodiment " expression " at least one other embodiment ".The correlation of other terms is fixed
Justice provides in will be described below.Hereinafter, without loss of generality, in describing the present invention when osteoacusis the relevant technologies, " 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, " loud speaker " or " earphone " can also be replaced with other similar words, such as " player ", " hearing aid "
Deng.In fact, the various realization methods in the present invention can be easily applied on the hearing device of other non-loud speaker classes.
For example, for those skilled in the art, it, may be without departing substantially from this after the basic principle for understanding bone-conduction speaker
In the case of principle, the concrete mode to implementing bone-conduction speaker carries out various amendments in form and details with step and changes
Become, particularly, ambient sound pickup and processing function is added in bone-conduction speaker, the loud speaker is made to realize the work(of hearing aid
Energy.For example, the microphones such as microphone can pick up the sound of user/wearer's ambient enviroment, under certain algorithm, by sound
(or the electric signal generated) is sent to bone-conduction speaker part after sound processing.I.e. bone-conduction speaker can pass through centainly
Modification, is added the function of picking up surrounding sounds, and after certain signal processing by bone-conduction speaker part by sound
User/wearer is passed to, to realize the function of ossiphone.As an example, algorithm mentioned here can wrap
Include noise elimination, automatic growth control, acoustic feedback inhibition, wide dynamic range compression, active Context awareness, active anti-noise, orientation
One or more combination such as processing, tinnitus processing, multi-channel wide dynamic range compression, active chauvent's criterion, volume control.
The present invention provides a kind of bone-conduction speaker of high sensitivity.In some embodiments, the bone-conduction speaker
It may include magnetic circuit component.The magnetic circuit component can generate the first full field.The magnetic circuit component may include the first magnetism
Element, the first magnetic conductive component, the second magnetic conductive component and one or more second magnetic elements.First magnetic element can be with
The second magnetic field is generated, second magnetic conductive component surround first magnetic element, and the shape between first magnetic element
At magnetic gap.One or more of magnetic elements are placed in the lower section of the magnetic gap.One or more in the magnetic circuit component
A second magnetic element can be reduced in the case where improving magnetic gap magnetic field intensity, improving the sensitivity of bone-conduction speaker
The volume and weight of magnetic circuit component, improve the efficiency of bone-conduction speaker, increase the service life of bone-conduction speaker.
The bone-conduction speaker has the characteristics that small, light-weight, efficient, high sensitivity and service life are long,
Convenient for the bone-conduction speaker to be combined with wearable intelligent equipment, to realize the multifunction of single equipment, improve
And optimize user experience.The wearable intelligent equipment includes but not limited to intelligent earphone, intelligent glasses, intelligent head hoop, intelligence
The helmet, smartwatch, Intelligent glove, intelligent shoe, intelligent camera, intelligent camera etc..The bone-conduction speaker can be into
It is combined with intellectual material to one step, osteoacusis is integrated in the manufacture material of the clothes of user, gloves, cap, shoes etc. and is raised
Sound device.The bone-conduction speaker can also further be implanted into human body, be implanted into chip with human body or external processor cooperates in fact
Now more personalized function.
Fig. 1 is the structure mould block diagram according to a kind of bone-conduction speaker shown in some embodiments of the present application 100.Such as figure
Described, bone-conduction speaker 100 may 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 converting the signal containing acoustic information to, to shake
Dynamic signal.In some embodiments, the acoustic information may include the video with format, audio file or can
To be converted into the data or file of sound by particular approach.The signal containing acoustic information may come from osteoacusis and raise
The storage assembly 108 of sound device 100 itself can be from the information other than bone-conduction speaker 100 and generate, stores or pass
Delivery system.The signal containing acoustic information may include that electric signal, optical signal, magnetic signal, mechanical signal etc. are a kind of or more
The combination of kind.The signal containing acoustic information can come from a signal source or multiple signal sources.The multiple signal source
Can correlation can not also be related.In some embodiments, bone-conduction speaker 100 can be obtained by various ways
The acquisition of the signal containing acoustic information, the signal can be wired or wireless, can be real-time or delay.
For example, bone-conduction speaker 100 can be by wired or wirelessly receive the electric signal containing acoustic information, it can also
(for example, storage assembly 108) obtains data directly from storage medium, generates voice signal.In another example in ossiphone
It may include the component with sound collection function, by picking up the sound in environment, the mechanical oscillation of sound be converted into electricity
Signal obtains the electric signal for meeting particular requirement after being handled by amplifier.In some embodiments, the wired connection can be with
Including metallic cable, optical cable or metal and optical compound cable, for example, coaxial cable, communication cable, soft electricity
Cable, spiral cable, nonmetallic sheathed cable, sheath wire, multicore cable, twisted-pair cable, ribbon cable, shielding electricity
One or more combination such as cable, communication cable, paired cable, twin-lead cable, twisted-pair feeder.Example described above is only made
It is used for convenience of description, the medium of wired connection can also be other types, for example, the transmission of other electric signals or optical signal etc.
Carrier.
Wireless connection may include radio communication, free space optical communication, acoustic communication and electromagnetic induction etc..Wherein without
The communication of line electricity may include IEEE802.11 series standards, IEEE802.15 series standards (such as Bluetooth technology and purple-bee technology
Deng), first generation mobile communication technology, Generation Mobile Telecommunication System technology (such as FDMA, TDMA, SDMA, CDMA and SSMA etc.),
General packet radio service technology, 3rd generation mobile communication technology (such as CDMA2000, WCDMA, TD-SCDMA and WiMAX
Deng), fourth generation mobile communication technology (such as TD-LTE and FDD-LTE etc.), satellite communication (such as GPS technology etc.), near field it is logical
Believe (NFC) and other technologies for operating in ISM band (such as 2.4GHz etc.)；Free space optical communication may include visible light,
Infra-red signal etc.；Acoustic communication may include sound wave, ultrasonic wave signal etc.；Electromagnetic induction may include near field communication technology etc..
Example described above is only as purposes of discussion is facilitated, and the medium of wireless connection can also be other types, for example, Z-wave skills
Art, the civil radio frequency range of other charges and military radio frequency range etc..For example, the application scenes as this technology,
Bone-conduction speaker 100 can obtain the signal containing acoustic information by Bluetooth technology from other equipment.
Vibration component 104 can generate mechanical oscillation.Along with the conversion of energy, osteoacusis raises one's voice for the generation of the vibration
Device 100 can use specific magnetic circuit component 102 to realize that the signal containing acoustic information turns to mechanical oscillation with vibration component 104
It changes.May include coexisting and converting for a variety of different type energy during conversion.For example, electric signal can by transducing head
To be directly changed into mechanical oscillation, sound is generated.For another example acoustic information may be embodied in optical signal, one kind is specifically changed
Energy device may be implemented to be converted to the process of vibration signal by optical signal.It is other can be coexisted in the transducing head course of work and
The energy of conversion includes thermal energy, magnetic field energy etc..The energy conversion regime of transducing head may include moving-coil type, it is electrostatic,
Piezoelectric type, moving-iron type, pneumatic type, electromagnetic type etc..The frequency response range and sound quality of bone-conduction speaker 100 can be vibrated
The influence of component 104.For example, in moving-coil type transducing head, vibration component 104 includes that the cylindrical coil of winding and one shake
Kinetoplast (for example, a vibrating reed) is driven vibrating body vibration sounding by the cylindrical coil that signal code drives in magnetic field, vibrated
The stretching, extension and contraction of body material, the deformation of fold, size, shape and fixed form, the magnetic density etc. of permanent magnet, all can be to bone
The audio quality of conduction speaker 100 brings prodigious influence.Vibrating body can be mirror-symmetrical knot in vibration component 104
Structure, centrosymmetric structure or asymmetrical structure；It can be provided with intermittent cavernous structure on vibrating body, vibrating body is made to produce
The displacement of raw bigger improves the output power of vibration and sound to allow bone-conduction speaker to realize higher sensitivity；Vibration
Body can be torus structure, be arranged multiple struts to center influx in torus, the number of strut can be two or
Person is more.
Support component 106 can play a supporting role to magnetic circuit component 102, vibration component 104 and/or storage assembly 108.
Support component 106 may include one or more shells, one or more connectors.One or more of shells can be formed
Accommodation space for accommodating magnetic circuit component 102, vibration component 104 and/or storage assembly 108.One or more of connections
Part can connect shell and magnetic circuit component 102, vibration component 104 and/or storage assembly 108.
Storage assembly 108 can store the signal containing acoustic information.In some embodiments, storage assembly 108 can be with
Including one or more storage devices.The storage device may include Direct Attached Storage (Direct Attached
Storage), network attached storage (Network Attached Storage) and storage area network (Storage Area
The storage device in storage systems such as Network).Storage device may include all kinds of storage devices such as solid storage device (Gu
State hard disk, solid-state hybrid hard disk etc.), mechanical hard disk, USB flash memory, memory stick, storage card (such as CF, SD), other driving (such as
CD, DVD, HD DVD, Blu-ray etc.), random access memory (RAM) and read-only memory (ROM).Wherein RAM may include ten
Into counting tube, selectron, delay line storage, WILLIAMS-DARLING Ton pipe, dynamic RAM (DRAM), Static RAM
(SRAM), thyristor random access memory (T-RAM) and zero capacitance random access memory (Z-RAM) etc.；ROM may include that magnetic bubble is deposited
It is reservoir, A.O. linear memory, thin-film memory, magnetic plated wire memeory, magnetic core memory, magnetic drum memory, CD drive, hard
Disk, tape, early stage NVRAM (nonvolatile storage), phase-change memory element, reluctance type random storage formula memory, ferroelectric random storage
Memory, non-volatile SRAM, flash memory, the electronics formula of erasing can make carbon copies read-only memory, Erasable Programmable Read Only Memory EPROM, may be programmed
Read-only memory, Mask ROM, floating connection door random access memory, nanometer random access memory, racing track memory, can
Changing resistor type memory and programmable metallization unit etc..Above-mentioned storage device/storage unit is to list some examples
Son, the storage device which can use are not limited thereto.
It is only above specific example to the description of bone-conduction speaker structure, is not considered as the reality of unique feasible
Apply scheme.It, may be not after the basic principle for understanding bone-conduction speaker for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of bone-conduction speaker in form and details various
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, bone-conduction speaker 100 can be with
Including one or more processors, the processor can execute one or more sound signal processing algorithms.The sound letter
Number Processing Algorithm can be modified or strengthen to the voice signal.Such as voice signal progress noise reduction, acoustic feedback are inhibited,
Wide dynamic range compression, automatic growth control, active Context awareness, active anti-noise, directional process, tinnitus processing, multi-channel wide
Dynamic range compression, active chauvent's criterion, volume control or the processing of other similar or any of the above combination, these amendments
With change still within the claims of the present invention.In another example bone-conduction speaker 100 may include one or more
A sensor, such as temperature sensor, humidity sensor, velocity sensor, displacement sensor etc..The sensor can acquire
User information or environmental information.
Fig. 2 is the Longitudinal cross section schematic according to a kind of bone-conduction speaker shown in some embodiments of the present application 200.Such as
Shown in figure, bone-conduction speaker 200 may include the first magnetic element 202, the first magnetic conductive component 204, the second magnetic conductive component
206, the first oscillating plate 208, 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 generate 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 may include one or more magnet.In some embodiments, the magnet may include metal alloy magnet, ferrite
Deng.Wherein, metal alloy magnet may include neodymium iron boron, SmCo, alnico, siderochrome cobalt, ferro-aluminum boron, iron carbon aluminium or similar,
Or in which a variety of combination.Ferrite may include barium ferrite, barium ferrite, U.S. Mn ferrite, lithium Mn ferrite or similar
Or in which multiple combinations.
The lower surface of first magnetic conductive component 204 can connect the upper surface of the first magnetic element 202.Second magnetic conductive component
206 can connect the first magnetic element 202.It should be noted that magnetizer mentioned here is referred to as field concentrator
Or iron core.Magnetizer can adjust the distribution in magnetic field (for example, magnetic field that the first magnetic element 202 generates).The magnetizer can
To include the element being process by soft magnetic materials.In some embodiments, the soft magnetic materials may include metal material, gold
Belong to alloy, metal oxide materials, amorphous metal material etc., for example, iron, iron Si system alloy, iron aluminum series alloy, nickel iron-based alloy,
Iron Co-based alloy, mild steel, silicon steel sheet, silicon steel sheet, ferrite etc..In some embodiments, can be added by casting, plasticity
The method of one or more combinations such as work, machining, powder metallurgy processes the magnetizer.Casting may include sand mold casting
Make, model casting, compression casting, centrifugal casting etc.；Plastic processing may include rolling, casting, forging, punching press, extruding, draw
Etc. one or more combinations；Machining may include turning, milling, planing, grinding etc..In some embodiments, described to lead
The processing method of magnet may include 3D printing, numerically-controlled machine tool etc..First magnetic conductive component 204, the second magnetic conductive component 206 and first
Connection type between magnetic element 202 may include being bonded, being clamped, welding, riveting, being bolted etc. one or more groups
It closes.In some embodiments, the first magnetic element 202, the first magnetic conductive component 204 and the second magnetic conductive component 206 could be provided as
Axially symmetric structure.The axially symmetric structure can be cyclic structure, column structure or it is other have axially symmetric structure.
In some embodiments, magnetic gap can be formed between the first magnetic element 202 and the second magnetic conductive component 206.Sound
Circle 210 can be set in the magnetic gap.Voice coil 210 can be connect with the first oscillating plate 208.First oscillating plate 208 can be with
The second oscillating plate 212 is connected, the second oscillating plate 212 can connect vibration panel 214.When being passed through electric current in the voice coil 210
Afterwards, the voice coil 210 is located at the magnetic formed in the first magnetic element 202, the first magnetic conductive component 214 and the second magnetic conductive component 206
, it can be vibrated by ampere force effect, the ampere power drive voice coil 210, the vibration of voice coil 210 can drive the first oscillating plate
208, the vibration of the second oscillating plate 212 and vibration panel 214.Vibration panel 214 transmits the vibration by tissue and bone
To auditory nerve, to make one to hear sound.It the vibration panel 214 and can be directly in direct contact with human skin,
Or it can be by the vibration transfer layer and skin contact that are made of certain material.
In some embodiments, for the bone-conduction speaker with single magnetic element, pass through the magnetic induction line at voice coil
And it is uneven, it is in divergent shape.Leakage field may be formed in magnetic circuit simultaneously, i.e., more magnetic induction line leaks to other than magnetic gap, not
Voice coil can be passed through, so that the magnetic induction intensity (or magnetic field intensity) at voice coil position declines, influences bone-conduction speaker
Sensitivity.Therefore, bone-conduction speaker 200 may further include at least one second magnetic element and/at least one third
Magnetic conductive component (not shown).At least one second magnetic element and/at least one third magnetic conductive component can inhibit magnetic
Feel the leakage of line, constrain the magnetic strength line morphology across voice coil so that more magnetic induction line is horizontal as possible densely to pass through voice coil, increases
Magnetic induction intensity (or magnetic field intensity) at strong voice coil position to improve the sensitivity of bone-conduction speaker 200, and then improves
The mechanical conversion efficiency of bone-conduction speaker 200 is (that is, convert the electric energy for inputting bone-conduction speaker 200 to voice coil vibrations
The efficiency of mechanical energy).More descriptions about at least one second magnetic element may refer to Fig. 3-3M.
It is only above specific example to the description of 200 structure of bone-conduction speaker, is not considered as unique feasible
Embodiment.It, may after the basic principle for understanding bone-conduction speaker for one of skill in the art
Without departing substantially from this principle, the concrete mode to implementing bone-conduction speaker carries out in form and details with step
Various modifications and variations, but these modifications and variations are still within the scope of above description.For example, bone-conduction speaker 200
May include shell, connector etc..The connector can connect vibration panel 214 and shell.In another example bone-conduction speaker
200 may include the second magnetic element, and second magnetic element can connect the first magnetic conductive component 204.In another example osteoacusis
Loud speaker 200 may further include one or more annular magnet elements, and the annular magnet element can connect second and lead
Magnetic cell 206.
Fig. 3 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3100.Such as Fig. 3
Shown, magnetic circuit component 3100 may 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 some embodiments, the first magnetic element 302 and/or the second magnetic element 308 can
To include any one or a few magnet described in this application.First magnetic element 302 may include the first magnet, the second magnetic
Property element 308 may include the second magnet, and first magnet can be identical or different with second magnet.First magnetic conduction member
Part 304 may include any one or a few permeability magnetic material described in this application, such as mild steel, silicon steel sheet, silicon steel sheet, iron
Oxysome etc..In some embodiments, the first magnetic element 302 and/or the first magnetic conductive component 304 could be provided as axially symmetric structure.
First magnetic element 302 and/or the first magnetic conductive component 304 can be cylinders.In some embodiments, the first magnetic element
302 and first magnetic conductive component 304 can be coaxial cylinder, contain identical or different diameter.In some embodiments,
It can be any one in magnetic element or magnetic conductive component that one full field, which changes element 306,.First full field changes element 306
And/or second magnetic element 308 can be set as cyclic annular or sheet.In some 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 may 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 type that element 304, the first full field change between element 306 and/or the second magnetic element 308 can be based on the application
Described in any one or a few connection type.In some embodiments, the first magnetic element 302, the first magnetic conductive component
304, the first full field, which changes element 306 and/or the second magnetic element 308, can form magnetic loop and magnetic gap.
In some embodiments, magnetic circuit component 3100 can generate the first full field (also referred to as " and magnetic circuit component it is total
Magnetic field "), the first magnetic element 302 can generate the second magnetic field, 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 some embodiments, the second magnetic element 308 can produce
Raw third magnetic field, the third 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 the second magnetic element 308) magnetic field that generates is collectively formed.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 some embodiments, the second magnetic element 308 can generate third magnetic field, and described
Three magnetic fields can improve magnetic field intensity of first full field at the magnetic gap.Third 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 third magnetic field (that is, there are the second magnetic elements 308)
When the magnetic field intensity of the magnetic gap is more than no third magnetic field in the presence of (that is, the second magnetic element 308 is not present), first is complete
Magnetic field.In other embodiment in the present specification, unless stated otherwise, magnetic circuit component indicate comprising all magnetic elements and
The structure of magnetic conductive component, the first full field indicate the magnetic field that is integrally generated by magnetic circuit component, the second magnetic field, third magnetic field ...,
The magnetic fields N indicate the magnetic field caused by corresponding magnetic element respectively.In various embodiments, second magnetic field is generated
(or third magnetic field ..., the magnetic fields N) magnetic element can be identical, can also be different.
In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and the second magnetic element 308 it
Between angle can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization and second of the first magnetic element 302
The direction of magnetization of magnetic element 308 and between angle between 45 degree and 135 degree.In some embodiments, the first magnetic member
Angle between the direction of magnetization of part 302 and the direction of magnetization of the second magnetic element 308 can be not higher than 90 degree.
In some 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 some embodiments, in the position of the second magnetic element 308
Place is set, the angle between the direction and the direction of magnetization of the second magnetic element 308 in the magnetic field that the first magnetic element 302 generates can
To be 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 is vertical
In the lower surface of the first magnetic element 302 or upper surface straight up (as schemed shown in the directions a), the magnetic of the second magnetic element 308
Change direction and inner ring is directed toward (as shown in the directions c in figure, on the right side of the first magnetic element 302 by the outer shroud of the second magnetic element 308
The direction of magnetization of side, the 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.
It is only above specific example to the description of the structure of magnetic circuit component 3100, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3100 in form and details various
Modifications and variations, but these modifications and variations are still within the scope of above description.For example, 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
Element 306 and the second magnetic element 308.
Fig. 4 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3200.Such as Fig. 4
Shown, unlike magnetic circuit component 3100, magnetic circuit component 3200 may further include third magnetic element 310.
The lower surface of third magnetic element 310 can connect the first full field and change element 306.Third magnetic element 310
Connection type between changing element 306 with the first full field can be connect based on described in this application any one or a few
Mode.In some 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 third magnetic element 310.In some embodiments, magnetic circuit component 3200
The first full field can be generated, the first magnetic element 302 can generate 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 some embodiments, third is magnetic
Element 310 can generate third magnetic field, and the third magnetic field can improve magnetic field of second magnetic field at the magnetic gap
Intensity.
In some embodiments, the direction of magnetization of the direction of magnetization of the first magnetic element 302 and third magnetic element 310 it
Between angle can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization and third of the first magnetic element 302
The direction of magnetization of magnetic element 310 and between angle between 45 degree and 135 degree.In some embodiments, the first magnetic member
Angle between the direction of magnetization and the direction of magnetization of third magnetic element 310 of part 302 can be equal to or more than 90 degree.At some
In embodiment, the direction of magnetization of the first magnetic element 302 perpendicular to the lower surface of the first magnetic element 302 or upper surface vertically to
Upper (as shown in the directions figure a), the direction of magnetization of third magnetic element 310 are directed toward outer shroud (such as by the inner ring of third magnetic element 310
In figure shown in the directions b, on the right side of the first magnetic element 302, the direction of magnetization of the first magnetic element 302 is clockwise
It turn 90 degrees partially).
In some embodiments, at the position of third 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 some embodiments, in the position of third magnetic element 310
Set place, the angle between the direction and the direction of magnetization of third magnetic element 310 in the magnetic field that the first magnetic element 302 generates can be with
It is 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.
Compared with magnetic circuit component 3100, magnetic circuit component 3200 further increases third magnetic element 310.The magnetic member of third
Part 310 can further increase the total magnetic flux in magnetic gap in magnetic circuit component 3200, and then increase the magnetic induction in magnetic gap
Intensity.Also, under the action of third magnetic element 310, magnetic induction line can further be restrained to magnetic gap position, to increase
Add the magnetic induction intensity in magnetic gap.
It is only above specific example to the description of the structure of magnetic circuit component 3200, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3200 in form and details various
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 third magnetic element 310.
Fig. 5 is the structural schematic diagram according to a kind of magnetic circuit component shown in some embodiments of the present application 3300.Such as Fig. 5 institutes
Show, 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 type between dependent element 306 and the second magnetic element 308 can be based on it is described in this application any one or it is several
Kind connection type.In some embodiments, the first magnetic element 302, the first magnetic conductive component 304, the first full field change element
306, magnetic gap can be formed between the second magnetic element 308, third magnetic element 310 and/or the 4th magnetic element 312.Second
The direction of magnetization of magnetic element 308 and third magnetic element 310 can be respectively with reference to retouching in the application 4A and/or 4B in detail
It states.
In some embodiments, magnetic circuit component 3300 can generate the first full field, and the first magnetic element 302 can produce
Raw second magnetic field, magnetic field intensity of first full field in the magnetic gap are more than second magnetic field in the magnetic gap
Interior magnetic field intensity.In some embodiments, the 4th magnetic element 312 can generate third magnetic field, and the third magnetic field can be with
Improve magnetic field intensity of second magnetic field at the magnetic gap.
In some embodiments, the magnetization side of the direction of magnetization and the 4th magnetic element 312 of first magnetic element 302
Angle between can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 with
The direction of magnetization of 4th magnetic element 312 and between angle between 45 degree and 135 degree.In some embodiments, described
Angle between the direction of magnetization and the direction of magnetization of the 4th magnetic element 312 of one magnetic element 302 can be equal to or more than 90
Degree.In some embodiments, the direction of magnetization of the first magnetic element 302 perpendicular to the lower surface of the first magnetic element 302 or on
Surface straight up (as shown in figure a directions), the direction of magnetization of the 4th magnetic element 312 by the 4th magnetic element 312 upper table
Face direction lower surface (as shown in the directions d in figure, on the right side of the first magnetic element 302, the magnetization side of the first magnetic element 302
To deflecting 180 degree clockwise).
In some 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 some embodiments, in the position of the 4th magnetic element 312
Place is set, the angle between the direction and the direction of magnetization of the 4th magnetic element 312 in the magnetic field that the first magnetic element 302 generates can
To be 0 degree, 10 degree, the angles for being less than or equal to 90 degree such as 20 degree.
Compared with magnetic circuit component 3200, magnetic circuit component 3300 further increases the 4th magnetic element 312.4th magnetic member
Part 312 can further increase the total magnetic flux in magnetic gap in magnetic circuit component 3300, and then increase the magnetic induction in magnetic gap
Intensity.Also, under the action of the 4th magnetic element 312, magnetic induction line can further be restrained to magnetic gap position, to increase
Add the magnetic induction intensity in magnetic gap.
It is only above specific example to the description of the structure of magnetic circuit component 3300, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3300 in form and details various
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 element, and one or more of conducting elements can connect the first magnetic element 302, first lead
At least one of magnetic cell 304, the second magnetic element 308, third magnetic element 310 and the 4th magnetic element 312 element.
Fig. 6 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3400.Such as Fig. 6
Shown, unlike magnetic circuit component 3300, magnetic circuit component 3400 may further include magnetism-guiding hood 314.
Magnetism-guiding hood 314 may 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 type described in this application
It connects the first full field and changes element 306, the second magnetic element 308, third magnetic element 310 and the 4th magnetic element 312.It leads
The processing method of magnetic cover 314 may include any one processing method described in this application, for example, casting, plastic processing, cutting
Cut one or more combinations such as processing, powder metallurgy.In some embodiments, magnetism-guiding hood 314 may include bottom plate and side wall, institute
It is loop configuration to state side wall.In some embodiments, the bottom plate and side wall can be integrally formed.In some embodiments,
The bottom plate can connect the side wall by any one or a few connection type 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, to allow more magnetic induction line by magnetic gap,
Improve the magnetic induction intensity in magnetic gap.
It is only above specific example to the description of the structure of magnetic circuit component 3400, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3400 in form and details various
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 element, and one or more of conducting elements can connect the first magnetic element 302, first lead
At least one of magnetic cell 304, the second magnetic element 308, third magnetic element 310 and the 4th magnetic element 312 element.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 magnetization side of the direction of magnetization and first magnetic element 302 of the 5th magnetic element
To opposite.
Fig. 7 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3500.Such as Fig. 7
Shown, unlike magnetic circuit component 3200, the first full field of magnetic circuit component 3500 changes element 306 and the second magnetic member
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 element 306 and the second magnetic element
308 joint face is configured to wedge shape section, can magnetic induction line smoothly be transferred.Meanwhile the wedge shape section can facilitate
First full field changes the assembly of element 306 and the second magnetic element 308 and can reduce assembling assembly number, reduces bone and passes
Lead the weight of loud speaker.
It is only above specific example to the description of the structure of magnetic circuit component 3500, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3500 in form and details various
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 element, the conducting element can connect the first magnetic element 302, the first magnetic conductive component 304,
At least one of second magnetic element 308 and third magnetic element 310 element.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 some 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 third magnetic element 310.
Fig. 8 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3600.Such as Fig. 8
Shown, unlike magnetic circuit component 3100, magnetic circuit component 3600 may further include the 5th magnetic element 316.At some
In embodiment, the 5th magnetic element 316 may include one or more magnet.The magnet may include described in this application
Any one or a few ferromagnetic material.In some embodiments, the 5th magnetic element 316 may include the first magnet, the first magnetic
Property element 302 may include the second magnet, first magnet and ferromagnetic material that second magnet includes can it is identical or
It is different.In some embodiments, the 5th magnetic element 316, the first magnetic element 302 and the first magnetic conductive component 304 can be set
It is set to axially symmetric structure, for example, the 5th magnetic element 316, the first magnetic element 302 and the first magnetic conductive component 304 can be
Cylinder.In some embodiments, in some embodiments, the 5th magnetic element 316, the first magnetic element 302 and first
Magnetic conductive component 304 can be coaxial cylinder, contain identical or different diameter.For example, the first magnetic conductive component 304 is straight
Diameter can be more than the first magnetic element 302 and/or the 5th magnetic element 316, the first magnetic element 302 and/or the 5th magnetic member
The side wall of part 316 can form the first recess portion and/or the second recess portion.In some embodiments, the thickness of the second magnetic element 316
With the sum of the thickness of first magnetic element 302, second magnetic element 316 and first magnetic conductive component 304
Ratio range is 0.4-0.6.First magnetic conductive component 304 and first magnetic element 302, second magnetic element 316 with
And the ratio range of the sum of thickness of first magnetic conductive component 304 is 0.5-1.5.In some embodiments, the 5th magnetic member
The thickness of part 316 is equal to the thickness of the first magnetic element 302.
In some 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 some 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, the directions a and the directions e).
Compared with magnetic circuit component 3100, magnetic circuit component 3600 further increases the 5th magnetic element 316.5th magnetic member
Part 326 can inhibit leakage field of first magnetic element 302 in the direction of magnetization in magnetic circuit component 3600, to make the first magnetic member
The magnetic field that part 302 generates can be more compressed in magnetic gap, thus improve the magnetic induction intensity in magnetic gap.
It is only above specific example to the description of the structure of magnetic circuit component 3600, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3600 in form and details various
Modifications and variations, but these modifications and variations are still within the scope of above description.In some 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 of part 302, the first magnetic conductive component 304, the second magnetic element 308 and the 5th magnetic element 316 element, example
The first recess portion and/or second recess portion as described in being set to 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
It connects the first full field and changes element 306.In some 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 changes element 306, second
Element 308 and the 5th magnetic element 316.
Fig. 9 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3700.Magnetic circuit
Component 3700 may 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, third 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, third magnetic element 310, third magnetic element 310, the 4th magnetic element 312 and
5th magnetic element 316, can refer to the application Fig. 3,3B, 3C, 3D, 3E and/or 3F in detailed description.In some embodiments
In, the first full field changes element 306 and/or the second ring-type element 322 may include annular magnet element or annular magnetic conduction member
Part.The annular magnet element may include any one or a few ferromagnetic material described in this application, the annular magnetic conduction
Element may include any one or a few permeability magnetic material described in this application.
In some 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 third magnetic element 310 and the second ring-type element 322.In some embodiments
In, the magnetic member of the first magnetic element 302, the 5th magnetic element 316, the second magnetic element 308, third magnetic element the 310, the 4th
Part 312, the 6th magnetic element 318 and/or the 7th magnetic element 320 change with first magnetic conductive component 304, the first full field
Dependent element 306 and the second ring-type element 322 can form magnetic loop.
The direction of magnetization of second magnetic element 308 can refer to the detailed description in the application Fig. 3, third magnetic element
310, the direction of magnetization of the 4th magnetic element 312 and the 5th magnetic element 316 can respectively refer to the application Fig. 4,3C and
The detailed description of 3F.
In some embodiments, the magnetization side of the direction of magnetization and the 6th magnetic element 318 of first magnetic element 302
Angle between can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 with
The direction of magnetization of 6th magnetic element 318 and between angle between 45 degree and 135 degree.In some embodiments, described
Angle between the direction of magnetization and the direction of magnetization of the 6th magnetic element 318 of one magnetic element 302 is not higher than 90 degree.One
In a little embodiments, the direction of magnetization of the first magnetic element 302 is vertical perpendicular to the lower surface of the first magnetic element 302 or upper surface
Upwards (as shown in the directions figure a), the direction of magnetization of the 6th magnetic element 318 is directed toward inner ring by the outer shroud of the 6th magnetic element 318
(as shown in the directions f in figure, on the right side of the first magnetic element 302, the direction of magnetization of the first magnetic element 302 is along clockwise
Direction deflects 270 degree).In some embodiments, on same vertical direction, the direction of magnetization of the 6th magnetic element 318 and the
The direction of magnetization of two magnetic elements 308 can be identical.In some embodiments, the direction of magnetization of the first magnetic element 302 is vertical
In the lower surface of the first magnetic element 302 or upper surface straight up (as schemed shown in the directions a), the magnetic of the 7th magnetic element 320
Change direction and upper surface is directed toward (as shown in the directions e in figure, in the first magnetic element 302 by the lower surface of the 7th magnetic element 320
Right side, the direction of magnetization inclined three-sixth turn clockwise of the first magnetic element 302).In some embodiments, the 7th magnetic
The direction of magnetization of property element 320 can be identical with the direction of magnetization of third magnetic element 312.
In some embodiments, at the position of the 6th magnetic element 318, the direction in the magnetic field that magnetic circuit component 3700 generates
Angle between the direction of magnetization of the 6th magnetic element 318 is not higher than 90 degree.In some embodiments, in the 6th magnetism
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 generates 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 some embodiments, the magnetization side of the direction of magnetization and the 7th magnetic element 320 of first magnetic element 302
Angle between can be at 0 degree between 180 degree.In some embodiments, the direction of magnetization of the first magnetic element 302 with
The direction of magnetization of 7th magnetic element 320 and between angle between 45 degree and 135 degree.In some embodiments, described
Angle between the direction of magnetization and the direction of magnetization of the 7th magnetic element 320 of one magnetic element 302 is not higher than 90 degree.
In some embodiments, at the position of the 7th magnetic element 320, the direction in the magnetic field that magnetic circuit component 3700 generates
Angle between the direction of magnetization of the 7th magnetic element 320 is not higher than 90 degree.In some embodiments, in the 7th magnetism
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 generates 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 some 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 some 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,
Magnetic induction line can be inhibited to leak, improve the magnetic induction intensity at magnetic gap, improve the sensitivity of bone-conduction speaker.
It is only above specific example to the description of the structure of magnetic circuit component 3700, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3700 in form and details various
Modifications and variations, but these modifications and variations are still within the scope of above description.In some 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, third magnetic element 310, the 4th magnetic element 312, the 5th magnetic
At least one of property element 316, the 6th magnetic element 318 and the 7th magnetic element 320 element.
Figure 10 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3800.Such as figure
Shown in 10, unlike magnetic circuit component 3700, magnetic circuit component 3800 may further include magnetism-guiding hood 314.
Magnetism-guiding hood 314 may 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 type described in this application
Connect the first magnetic element 302, the first full field changes element 306, the second magnetic element 308, third 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 may include any one processing method described in this application, for example, casting, plasticity
One or more combinations such as processing, machining, powder metallurgy.In some embodiments, magnetism-guiding hood may include at least one
Bottom plate and side wall, the side wall are loop configuration.In some 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 type described in this application
Wall.For example, magnetism-guiding hood 314 may 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 type described in this application
Wall.
In magnetic circuit component 3800, magnetism-guiding hood 314 can generate magnetic circuit component 3800 magnetic circuit closed so that more
Magnetic induction line concentrates in the magnetic gap in the magnetic circuit component 3800, reaches and inhibits leakage field, the magnetic induction increased at magnetic gap strong
The effect of sensitivity of degree and raising bone-conduction speaker.
It is only above specific example to the description of the structure of magnetic circuit component 3800, is not considered as unique feasible
Embodiment.It, may be not after the basic principle for understanding bone magnetic circuit component for one of skill in the art
In the case of this principle, to implementing concrete mode and the step progress of magnetic circuit component 3800 in form and details various
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 element, and one or more of conducting elements can connect the first magnetic element 302, first lead
Magnetic cell 304, the second magnetic element 308, third magnetic element 310, the 4th magnetic element 312, the 5th magnetic element 316,
At least one of six magnetic elements 318 and the 7th magnetic element 320 element.
Figure 11 is the Longitudinal cross section schematic according to a kind of magnetic circuit component shown in some embodiments of the present application 3900.Such as figure
Shown in 11, 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 third conducting element 328).
The description of the conducting element and conducting element 318, conducting element 320 is similar with conducting element 322, and correlation is retouched
It states and is not repeated here.
On be only specific example to the description of the structure of magnetic circuit component 3900, be not considered as the reality of unique feasible
Apply scheme.For one of skill in the art, after the basic principle for understanding bone magnetic circuit component, it may not carry on the back
In the case of from this principle, repaiied to implementing concrete mode and the step progress of magnetic circuit component 3900 in form and details various
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.
Figure 12 is according to a kind of cross-sectional view of magnetic element structure shown in 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. 3-3M).As schemed
Show, magnetic element 400 can be cricoid.Magnetic element 400 may include inner ring 402 and outer shroud 404.In some embodiments
In, the shape of the inner ring 402 and/or outer shroud 404 can be circle, ellipse, triangle, quadrangle or other arbitrary polygon
Shape.
Figure 13 is according to a kind of schematic diagram of magnetic element structure shown in 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. 3-3M).As shown, the magnetic
Property element can be rearranged by multiple magnets.It the both ends of any one magnet of the magnet can be with the two of adjacent magnet
End connects or there are certain spacing.Spacing between multiple magnets can be identical or different.In some embodiments, the magnetic
Property element can be made of magnet (for example, magnet 408-2,408-4 and 408-6) equidistant arrangement of 2 or 3 sheets.Institute
The shape for stating the magnet of sheet can be sector, quadrangle etc..
Figure 14 is the direction of magnetization schematic diagram according to magnetic element in magnetic circuit component shown in some embodiments of the present application.
As described in Figure, the magnetic circuit component may include the first magnetic element 401, the second magnetic element 403 and third magnetic element
405.The direction of magnetization of first magnetic element 401 can be directed toward upper surface by the lower surface of the first magnetic element 401 (to hang down
Directly in paper outwardly direction).Second magnetic element 403 can surround the first magnetic element 401 and be arranged.Second magnetic element
Magnetic gap can be formed between 403 inner ring and the inner ring of the first magnetic element 401.The direction of magnetization of second magnetic element 403
Can outer shroud be directed toward by the inner ring of the second magnetic element 403.The inner ring of third magnetic element 405 can connect the first magnetic member
The outer shroud of part 401, the outer shroud of third magnetic element 405 can connect the inner ring of the second magnetic element 403.Third magnetic element
405 direction of magnetization can be directed toward inner ring by the outer shroud of third magnetic element 403.
Figure 15 is the line of magnetic induction according to the magnetic element in a kind of magnetic circuit component shown in some embodiments of the present application
Schematic diagram.As shown, magnetic circuit component 400 may include the first magnetic element (for example, the magnetic circuit component as shown in Fig. 3-3M)
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 generate the second magnetic field, and second magnetic field can be by magnetic
The line of induction indicates (solid line indicates 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 is directed toward outer shroud (as shown by the arrowb).Second magnetic element 404 can produce
Raw third magnetic field.The third magnetic field can also be indicated that (dotted line is indicated in no first magnetic element 402 in figure by the line of magnetic induction
In the presence of, the distribution in third magnetic field), magnetic direction of the third magnetic field at certain point is the point in third magnetic strength
Answer the tangential direction on line.Under the interaction in second magnetic field and the third magnetic field, the magnetic circuit component 400 can be with
Generate the first full field.Magnetic field intensity of first full field at voice coil 406 is more than second magnetic field or the third
Magnetic field intensity of the magnetic field at voice coil 406.As shown, magnetic direction of second magnetic field at 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.
Figure 16 is the structural schematic diagram according to a kind of bone-conduction speaker shown in some embodiments of the present application 5000.Such as
Shown in figure, bone-conduction speaker 5000 may include the first magnetic element 502, the first magnetic conductive component 510, the second magnetic element
504, third magnetic element 506, the second magnetic conductive component 508, washer 514, voice coil 512, the first oscillating plate 516, holder 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.Third magnetic element 506 in the lower section of the second magnetic element 504, meanwhile, third is magnetic
The lateral wall of element 506 connects the madial wall of the second magnetic conductive component 508；The madial wall of third magnetic element 506 connects the first magnetic
The lateral wall of property element 502；The lower surface of third magnetic element 506 connects the inner wall of the second magnetic conductive component 508；First is magnetic
Magnetic gap can be formed between element 502, the first magnetic conductive component 510 and the second magnetic element 504, third magnetic element 506.Sound
Circle 512 can be positioned in the magnetic gap.In some embodiments, voice coil 512 can be track type shown in fig. 5, can also
It is other geometries, such as triangle, rectangle, square, ellipse, pentagon or other irregular shapes.Voice coil 512
Connecting bracket 518, holder 518 connect the first oscillating plate 516, and the first oscillating plate 516 passes through washer 514 and the second magnetic conductive component
508 connections.The lower surface of second oscillating plate 520 is connect with holder 518, upper surface and the vibration panel 522 of the second oscillating plate 520
Connection.In some embodiments, the second magnetic element 504 can be made of polylith magnetic element, its as shown in figure 16 can be by 4
Block magnetic element 541,542,543,544 forms.The shape that polylith magnetic element surrounds can be track type shown in Figure 16,
Can be other geometries, such as triangle, rectangle, square, ellipse, pentagon or other irregular shapes.The
Three magnetic elements 506 can be made of polylith magnetic element, as shown in figure 16 its can by 4 pieces of magnetic elements 561,562,563,
564 compositions.The shape that polylith magnetic element surrounds can be track type shown in fig. 5, can also be other geometries, such as
Triangle, rectangle, square, ellipse, pentagon or other irregular shapes.As retouched in other embodiment in the application
It states, the direction of magnetization that the second magnetic element 504 or third magnetic element 506 can be replaced by multiple interconnections is different
Magnetic element, the magnetic element that the direction of magnetization of the multiple interconnection is different can improve magnetic in bone-conduction speaker 500
The magnetic field intensity of gap location, to improve the sensitivity of bone-conduction speaker 500.
In some embodiments, the first magnetic element 502, the first magnetic conductive component 510, the second magnetic element 504, third magnetic
Property element 506, the second magnetic conductive component 508, washer 514, voice coil 512, the first oscillating plate 516, holder 518, the second oscillating plate 520
And/or it can be connected by any one or a few connection type described in this application between each element in vibration panel 522.
For example, the first magnetic element 502, the second magnetic element 504, third magnetic element 506 can be by way of bonding with first
Magnetic conductive component 510 and/or the connection of the second magnetic conductive component 508.In another example washer 514 can pass through back-off structure and the second magnetic conduction
Element 508 connect, further, washer 514 can in such a way that back-off structure adds bonding with the second magnetic conductive component 508 and/
Or second magnetic element 504 connect.In some embodiments, the first oscillating plate 516 and/or the second oscillating plate 520 can be arranged
For one or more coaxial ring bodies, be provided with multiple struts to center influx in the multiple ring body, 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 be straight bar part are 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 Figure 16 institutes
The spirogyrate cambered surface shown.
Basic conception is described above, it is clear that those skilled in the art, foregoing invention discloses only
As an example, and not constituting the restriction to the application.Although do not clearly state herein, those skilled in the art may
The application is carry out various modifications, improve and is corrected.Such modification, improvement and amendment are proposed in this application, so such
Modification improves, corrects 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 the relevant a certain feature of at least one embodiment of the application, 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 different 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 features, structure or feature can carry out combination appropriate.
In addition, it will be understood by those skilled in the art that the various aspects of the application can be by several with patentability
Type or situation are illustrated and described, including any new and useful process, machine, the combination of product or substance or to him
Any new and useful improvement.Correspondingly, the various aspects of the application can completely by hardware execute, can completely by
Software (including firmware, resident software, microcode etc.) is executed, can also be executed by combination of hardware.Hardware above or software
It is referred to alternatively as " data block ", " module ", " engine ", " unit ", " component " or " system ".In addition, the various aspects of the application can
The computer product being located in one or more computer-readable mediums can be shown as, which includes that computer-readable program is compiled
Code.
In addition, except clearly stating in non-claimed, the sequence of herein described processing element and sequence, digital alphabet
Using or other titles use, be not intended to limit the sequence 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 device
The described system of dress.
Similarly, it is noted that real to one or more invention to help in order to simplify herein disclosed statement
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.
Used in some embodiments description ingredient, number of attributes number, it should be appreciated that it is such be used for embodiment
The number of description has used qualifier " about ", " approximation " or " generally " etc. to modify in some instances.Unless in addition saying
It is bright, " about ", " approximation " or " generally " show that the number allows the variation for having ± 20%.Correspondingly, in some embodiments
In, the numeric data used in description and claims is approximation, and the approximation is according to feature needed for separate embodiment
It can change.In some embodiments, numeric data is considered as defined significant digit and using the reservation of general digit
Method.Although the Numerical Range and data in some embodiments of the application for confirming its range range are approximation, specific real
It applies 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 to illustrate 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
It is 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 (17)
1. a kind of magnetic circuit component of bone-conduction speaker, the magnet assembly generates the first full field, and the magnetic circuit component includes：
First magnetic element, first magnetic element generate the second magnetic field；
First magnetic conductive component；
Second magnetic conductive component, 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 the lower section of the magnetic gap, and described
Magnetic field intensity of one full field in the magnetic gap is more than magnetic field intensity of second magnetic field in the magnetic gap.
2. 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 2, the direction of magnetization and first magnetic of at least one second magnetic element
Property element the direction of magnetization between angle be not more than 90 degree.
4. magnetic circuit component described in claim 1, further comprises：
At least one third magnetic element, the third magnetic element connect second magnetic conductive component.
5. the magnetic circuit component described in claim 4, the direction of magnetization and first magnetic of at least one third magnetic element
Angle between the direction of magnetization of property element is between 45 degree and 135 degree.
6. the magnetic circuit component described in claim 5, the direction of magnetization and first magnetic of at least one third magnetic element
Property element the direction of magnetization between angle be not less than 90 degree.
7. the magnetic circuit component described in claim 4, 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 a few third magnetic element.
8. the magnetic circuit component described in claim 7, the direction of magnetization and first magnetic of at least one 4th magnetic element
Angle between the direction of magnetization of property element is between 45 degree and 135 degree.
9. magnetic circuit component according to any one of claims 8, 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.
10. the magnetic circuit component in claim 1-9 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.
11. magnetic circuit component described in claim 1, wherein second magnetic conductive component and the described at least one second magnetic member
Part is connected, and the joint face includes wedge shape section.
12. magnetic circuit component described in claim 1, further comprises：
At least one 5th magnetic element, at least one 5th magnetic element connect the upper table of first magnetic conductive component
Face.
13. the magnetic circuit component described in claim 12, the direction of magnetization and described first of at least one 5th magnetic element
The angle of the direction of magnetization of magnetic element is at 150 degree between 180 degree.
14. the magnetic circuit component described in claim 12, the thickness of at least one 5th magnetic element is magnetic with described first
The ratio range of the sum of the thickness of element, at least one 5th magnetic element and first magnetic conductive component is 0.4-
0.6。
15. the thickness of the magnetic circuit component described in claim 12, the 5th magnetic element is equal to first magnetic element
Thickness.
16. 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 of described second magnetic element element.
17. a kind of bone-conduction speaker, the bone-conduction speaker include：
Vibration component, the vibration component include voice coil and at least one oscillating plate；And
Any magnetic circuit components of claim 1-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015659.2A CN108347675A (en) | 2018-01-08 | 2018-01-08 | A kind of bone-conduction speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015659.2A CN108347675A (en) | 2018-01-08 | 2018-01-08 | A kind of bone-conduction speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108347675A true CN108347675A (en) | 2018-07-31 |
Family
ID=62960608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810015659.2A Pending CN108347675A (en) | 2018-01-08 | 2018-01-08 | A kind of bone-conduction speaker |
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| Country | Link |
|---|---|
| CN (1) | CN108347675A (en) |
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| CN205356672U (en) * | 2015-12-24 | 2016-06-29 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN207692048U (en) * | 2018-01-08 | 2018-08-03 | 深圳市韶音科技有限公司 | A kind of bone-conduction speaker |
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| JPH0543697U (en) * | 1991-11-08 | 1993-06-11 | オンキヨー株式会社 | Magnetic circuit for speaker |
| CN1943270A (en) * | 2004-04-05 | 2007-04-04 | 松下电器产业株式会社 | Speaker device |
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