CN109348375A - A moving iron speaker and earphones - Google Patents
A moving iron speaker and earphones Download PDFInfo
- Publication number
- CN109348375A CN109348375A CN201811441612.9A CN201811441612A CN109348375A CN 109348375 A CN109348375 A CN 109348375A CN 201811441612 A CN201811441612 A CN 201811441612A CN 109348375 A CN109348375 A CN 109348375A
- Authority
- CN
- China
- Prior art keywords
- armature
- coil
- moving iron
- hole
- pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 47
- 230000005415 magnetization Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000011257 shell material Substances 0.000 description 24
- 239000002103 nanocoating Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000004044 response Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910000531 Co alloy Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- -1 polyethylene diformate Polymers 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004697 Polyetherimide Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000019491 signal transduction Effects 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention relates to dynamic iron technical field is related to, more particularly to a kind of moving iron loud speaker and earphone.Wherein, moving iron loud speaker, comprising: magnetic element；Coil, the coil offer the first accepting hole；Iron core is fixedly connected on the coil, and the iron core offers the second accepting hole, and the magnetic element is contained in second accepting hole；Armature, the armature extends through first accepting hole and the second accepting hole, a part of the armature is vacantly contained in first accepting hole, and another part of the armature is vacantly contained in second accepting hole and is set in the fixation permanent magnetic field that the magnetic element is formed；Pad is electrically connected to the coil.The present invention passes through the woofer based on miniature balanced armature technology, the size and ability of vibrating diaphragm and magnet can be made full use of, without changing magnetic Circuit Design, miniature balanced armature unit volume can accomplish much smaller, can satisfy the demand that current electronic product is thinned and minimizes increasingly.
Description
Technical field
The present invention relates to dynamic iron technical fields, more particularly to a kind of moving iron loud speaker and earphone.
Background technique
With development in science and technology, in recent years music earphone, wearable device small and slimming, people are to these electricity
The performance requirement of sub- product is also higher and higher, so that the volume of matched electronic component is also required to be also required to reduce, performance
Consistency is continuously improved.Woofer is a kind of important spare part for being widely used in above-mentioned electronic product, it is desirable that is being ensured
Its volume is minimized on the basis of speaker performance, to adapt to the needs of novel electronic devices.
But inventor, in realizing process of the present invention, there are following technical problems for the discovery prior art: conventional bass is raised
The magnetic circuit system size of sound device is bigger, thicker, and the woofer of this structure, the small product size made is larger, can not
Meets the needs of current electronic product is thinned and minimizes increasingly.
Summary of the invention
One purpose of the embodiment of the present invention is intended to provide a kind of moving iron loud speaker and earphone, to solve traditional woofer
Small product size is larger, be unable to satisfy that current electronic product is thinned and minimizes increasingly the technical issues of.
In order to solve the above technical problems, the embodiment of the present invention is the following technical schemes are provided: provide one in invention
Kind moving iron loud speaker comprising: casing assembly comprising upper shell and lower casing, the upper shell are fixedly connected with lower casing,
The upper shell offers sound outlet hole on one side, and the shape of the sound outlet hole is circular aperture.Magnet assembly forms fixation
Magnetic field；Iron core, the magnet assembly are contained in the iron core；Armature, one end of the armature are contained in the iron core and set
It is placed in the fixed magnetic field that the magnet assembly is formed；Coil, the coil panel is around in the other end of the armature, for receiving
Ac signal, and then the magnetic field of checker is generated, thus the armature is magnetized, and the direction of magnetization is with magnetic direction
Variation and change, finally the magnet assembly formed fixed magnetic field under the action of deflect, generate upward or downward
Alternating movement.
Optionally, the armature is U-shaped, including U-shaped interconnecting piece, the first armature plate and the second armature plate, first electricity
Pivot piece and second armature plate are respectively fixedly connected in the both ends of the U-shaped interconnecting piece；First armature plate passes through respectively
First accepting hole and the second accepting hole are worn, described first armature plate a part is vacantly contained in first accepting hole, institute
The another part for stating the first armature plate is vacantly contained in second accepting hole and is set to the fixation that the magnetic element is formed
In permanent magnetic field；Second armature plate is fixedly installed on the outer surface of the coil.
Optionally, the armature is made of soft magnetic materials.
Optionally, the magnetic element include the first magnetic element and the second magnetic element, first magnetic element and
Second magnetic element is contained in second accepting hole and is relatively arranged on the inner surface of the iron core.
Optionally, the upper shell and lower casing are fixedly connected to form an accommodating chamber；The moving iron loud speaker further includes solid
Fixed board and vibrating diaphragm, the vibrating diaphragm fixation are contained in the fixed plate, and the side frame of the fixed plate is connected to the upper shell
Inner surface, and then the accommodating chamber is separated into epicoele and cavity of resorption；The coil, the magnetic element, the armature and described
Iron core is contained in the cavity of resorption, and the pad is set to the casing assembly outer surface.
Optionally, one end of the vibrating diaphragm offers the first fixation hole；One end of the armature is provided with the first protrusion, institute
It states the first protrusion and extends second accepting hole, first protrusion offers the second fixation hole；The moving iron loud speaker is also
Including conductive bar, through first fixation hole is connected to, the other end grafting of the conductive bar is solid for one end of the conductive bar
Due to second fixation hole, the movement of the armature can drive the movement of the conductive bar, and then drive the vibration of the vibrating diaphragm
It is dynamic.
Optionally, the upper shell offers sound outlet hole, the sound outlet hole connection close to first fixation hole on one side
In the epicoele, the sound that the diaphragm oscillations issue is transmitted to outside by the sound outlet hole.
Optionally, the sound outlet hole is connected to the epicoele, and the sound that the diaphragm oscillations issue passes through the sound outlet hole
It is transmitted to outside.
Optionally, the pad includes the first pad, the second pad, the first conducting wire and the second conducting wire；The coil surface
It is provided with the first electric connecting terminal and the second electric connecting terminal；One end of first conducting wire is electrically connected to first pad, another
End is electrically connected to first electric connecting terminal；One end of second conducting wire is electrically connected to second pad, and the other end is electrically connected
It is connected to second electric connecting terminal, to form primary Ioops, the AC signal for receiving the pad is conducted to coil,
Make to produce the magnetic field of checker around coil.
On the other hand, the present invention also provides a kind of earphones, including above-mentioned moving iron loud speaker.
The beneficial effect of embodiment of the present invention is: being in contrast to the prior art, the present invention provides a kind of dynamic iron
Loudspeaker, comprising: magnetic element forms fixed permanent magnetic field；Coil, the coil offer the first accepting hole；Iron core,
It is fixedly connected on the coil, the iron core offers the second accepting hole, and the magnetic element is contained in second accepting hole；
Armature, the armature extend through first accepting hole and the second accepting hole, and a part of the armature is vacantly contained in institute
The first accepting hole is stated, another part of the armature is vacantly contained in second accepting hole and is set to the magnetic element shape
At fixation magnetic field in；Pad is electrically connected to the coil.The present invention passes through the bass based on miniature balanced armature technology
Loudspeaker can make full use of the size and ability of vibrating diaphragm and magnet, without changing magnetic Circuit Design, export acoustic pressure compared to same
The moving-coil unit of grade, miniature balanced armature unit volume can accomplish much smaller, and it is increasingly slim to can satisfy current electronic product
The demand changed and minimized.
Detailed description of the invention
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not constituted to embodiment, the element in attached drawing with same reference numbers label are expressed as similar element, remove
Non- to have special statement, composition does not limit the figure in attached drawing.
Fig. 1 is a kind of configuration schematic diagram for moving iron loud speaker that embodiment of the present invention provides；
Fig. 2 is the configuration schematic diagram of another angle of moving iron loud speaker shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the casing assembly of moving iron loud speaker shown in FIG. 1；
Fig. 4 is the structural schematic diagram of another angle of casing assembly of moving iron loud speaker shown in FIG. 1；
Fig. 5 is the vibrating diaphragm of moving iron loud speaker shown in FIG. 1 and the structural schematic diagram of fixed plate；
Fig. 6 is the coil of moving iron loud speaker shown in FIG. 1 and the structural schematic diagram of iron core；
Fig. 7 is that the package assembly of the coil of moving iron loud speaker shown in FIG. 1, iron core, armature, magnetic element and conductive bar is shown
It is intended to；
Fig. 8 is the structural schematic diagram of the armature of moving iron loud speaker shown in FIG. 1；
Fig. 9 is the assembly structure diagram of the iron core of moving iron loud speaker shown in FIG. 1, coil and pad；
Figure 10 is a kind of frequency response curve of moving iron loud speaker of ventional loudspeakers and invention embodiment offer.
Specific embodiment
To facilitate the understanding of the present invention, with reference to the accompanying drawings and detailed description, the present invention is carried out in more detail
It is bright.It should be noted that be expressed " being fixed on " another element when element, it can directly on the other element or
There may be one or more elements placed in the middle therebetween.When an element is expressed " connection " another element, it be can be directly
It is connected to another element in succession or there may be one or more elements placed in the middle therebetween.Term used in this specification
"vertical", "horizontal", "left" and "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes
Any and all combinations of one or more related listed items.
Also referring to Fig. 1 and Fig. 2, the moving iron loud speaker 100 includes casing assembly 10, fixed plate 20, vibrating diaphragm 30, line
Circle 40, iron core 50, magnet assembly 60, armature 70, conductive bar 80 and pad 90；The fixed plate 20, vibrating diaphragm 30, coil 40, iron
Core 50, magnet assembly 60, armature 70 and conductive bar 80 are contained in the casing assembly 10, and the pad 90 is set to described outer
10 outer surface of shell component, for receiving external communication electric signal；The pad 90 is electrically connected to the coil 40, and being used for will be described
The AC signal that pad 90 receives is conducted to coil 40, makes to produce the magnetic field of checker around coil 40.The coil
40 are connected to the iron core 50, and the magnet assembly 60 is contained in the iron core 50, and the coiling of coil 40 is in the armature 70
One end, the other end of the armature 70 runs through and is vacantly contained in the magnet assembly 60；80 one end of conductive bar connection
In the armature 70, the other end of the conductive bar 80 is connected to the vibrating diaphragm 30, and the movement of the armature 70 drives after magnetization
The movement of the conductive bar 80, and then drive the vibration of the vibrating diaphragm 30.
Also referring to Fig. 3 and Fig. 4, the casing assembly 10 includes upper shell 12 and lower casing 14, the upper shell 12
With lower casing 14 include a bottom wall 122 and around a bottom wall 122 setting four side walls 124, the upper shell 12 and it is described under
Four side walls 124 of shell 14 are mutually permanently connected.
The cuboid that the shape of the upper shell 12 and the lower casing 14 is substantially open on one side, in some embodiments
In, the shape of upper shell 12 and lower casing 14 can be set as needed as different shapes, such as hemispherical, semielliptical shape or
Irregular gengon etc..
In some embodiments, upper shell 12 and lower casing 14 are integrally formed, and eliminate shell 12 and lower casing 14
The gap of junction improves the dustproof and waterproof of moving iron loud speaker.The bottom wall 122 of the upper shell 12 and the lower casing 14
Junction with four side walls 124 is curved edge 123, and the curved edge 123 can prevent acoustic wave diffraction from generating to sound
Any negative effect.
The upper shell 12 and the lower casing 14 use the external shell material of polyurethane integral, which can be multiple with high accuracy
Sound detail processed, sound is maintained in the limited tolerance strictly regulated.The upper shell 12 and the fixed company of the lower casing 14
It connects, and forms an accommodating chamber 18, the fixed plate 20, vibrating diaphragm 30, coil 40, iron core 50, magnet assembly 60, armature 70 and conduction
Bar 80 is contained in the accommodating chamber 18.
The upper shell 12 offers sound outlet hole 126 on one side, and the sound that the vibration of vibrating diaphragm 30 issues passes through the sound out
Hole 126 is transmitted to outside, and the shape of the sound outlet hole 126 is circular aperture, referring to Fig. 10, ventional loudspeakers sound hole 126 is set
It is calculated as rectangle, the acoustical curve using the moving-iron receiver of this design is shown in dotted line, and the application design is by sound outlet hole
126 are designed as circular aperture, and area size can cause certain physics sound to hinder to sound out, and acoustical curve is as shown by the solid line,
Using this design, it can allow a common loudspeaker, in the case where not changing interior design, become one with low frequency
The loudspeaker of response advantage.And high-frequency resonance is reduced, when carrying out multiple-unit combination frequency dividing for client, can also not have to consider
High frequency.
In some embodiments, the shape of the sound outlet hole 126 can also be other regular shapes such as rectangular and oval, circle
Pore size needs are designed according to actual acoustic curve demand.
The one side of the lower casing 14 far from sound outlet hole 126 offers first through hole 142 and the second through-hole 146, institute respectively
The shape of first through hole 142 and second through-hole 146 is stated as semicircle, the pad 90 can pass through the first through hole respectively
142 and second through-hole 146 be electrically connected to the coil 40.
The casing assembly 10 further includes sound guide tube 16, and the sound guide tube 16 is set to 12 outer surface of upper shell, and
Be covered on the sound outlet hole 126, offer leading note chamber 162 inside the sound guide tube 16, the leading note chamber 162 be connected to it is described go out
Sound hole 126, for guiding the direction of transfer of sound.
Referring to Fig. 5, the four side frame 22 of the fixed plate 20 is individually fixed in four side walls 124 in upper shell 12, institute
It states fixed plate and 12 bearing of upper shell to be isolated with epoxide-resin glue sealing, separates accommodating chamber 18 at epicoele and back cavity,
The fixation of vibrating diaphragm 30 is contained in the fixed plate；The coil 40, the magnet assembly 60, the armature 70 and the conduction
Bar 80 is contained in the cavity of resorption.The sound outlet hole 126 is connected to the epicoele, and the sound that the vibration of vibrating diaphragm 30 issues passes through
The sound outlet hole 126 is transmitted to outside.
The shape of the vibrating diaphragm 30 is rectangle, and the vibrating diaphragm 30 offers first close to one end of sound outlet hole 126 and fixes
Hole 32, the vibrating diaphragm 30 are plastic vibratory film, and the plastic vibratory film can choose different types as needed, such as PET (gathers
Ethylene terephthalate), PEN (polyethylene diformate), PEI (polyetherimide) and PI (polyimides) etc..Some
In embodiment, metal vibration diaphragm 30 is can also be used in the vibrating diaphragm 30, such as: aluminium alloy, titanium alloy and beryllium alloy etc..
In some embodiments, other kinds of vibrating diaphragm 30 can also be used in the vibrating diaphragm 30, such as: wooden vibrating membrane, life
Object vibrating membrane and papery vibrating membrane etc..30 size of vibrating diaphragm is preferably 20~30MM of Φ, 30 size of vibrating diaphragm it is big
The small sound quality for determining the moving iron loud speaker.
The thickness of the vibrating diaphragm 30 is preferably 2-5 μm, and under the ability that maximum vibration is born, diaphragm thickness is thinner, low frequency
Better.
In some embodiments, the surface etch of the vibrating diaphragm 30 has water ripples, and the main increasing action of water ripples rises
The effect of reinforcing rib increases the rigidity in the vibration of vibrating diaphragm 30 and increases the effective radiating area of vibrating diaphragm 30, also there is certain improvement
The effect of damping, and the lines of the water ripples is deeper, intermediate frequency density is bigger, and intermediate frequency is more clear.
In some embodiments, the surface of the vibrating diaphragm 30 can also etch as round line and sun line etc..
Referring to Fig. 6, the coiling of coil 40 is in one end of the armature 70, the opposite sides point of 40 bottom of coil
It is not provided with the first electric connecting terminal 44 and the second electric connecting terminal (figure does not indicate), for being electrically connected to the pad 90, described the
One electric connecting terminal 44 and second electric connecting terminal (figure does not indicate) shape are cylindrical body, first electric connecting terminal 44 and institute
The middle part for stating the second electric connecting terminal (figure does not indicate) offers the first socket (figure does not indicate) respectively and the second socket (schemes not mark
Show).
The coil 40 is coiled to form by OFC copper wire, and the OFC copper wire purity is higher, has sound density good, middle low frequency
The thick and solid exquisiteness of sound, medium-high frequency strength sense become the features such as soft.In some embodiments, the coil 40 can be by common copper cash
It is made, but due to skin effect principle, copper conductor center is only suitable for low frequency signal in transmission, surface is suitble to transmission high
Frequency signal, it is unequal when transmission.
In some embodiments, the coil 40 can be made by copper-clad aluminum conductor, and low frequency had been both in the copper-clad aluminum conductor
There is the thick and solid fine and smooth of copper wire, and has the low high frequency characteristics of aluminum steel good, the feature that sound is beautiful, penetrating.
In some embodiments, the coil 40 can also be made by aluminum steel, the aluminum steel lighter weight, density ratio copper
Small, vibration efficiency is high, so high frequency is beautiful, thoroughly.
The iron core 50 is generally shaped like cuboid, and the middle part of the iron core 50 offers the second accepting hole 52, described
Second accepting hole 52 is generally shaped like cuboid, and second accepting hole 52 can be set as identical according to the first accepting hole 42
Shape, the iron core 50 are fixedly connected with the coil 40, and second accepting hole 52 is connected to first accepting hole 42,
And the height of second accepting hole 52 is greater than the height of first accepting hole 42.
Referring to Fig. 7, the magnet assembly 60 includes the first magnetic element 62 and the second magnetic element 64, first magnetic
Property element 62 and second magnetic element 64 are contained in second accepting hole 52 and are relatively arranged on the iron core 50
Inner surface.
First magnetic element 62 and second magnetic element 64 are generally shaped like cuboid, and described first is magnetic
The shape of element 62 and second magnetic element 64 can be set as identical shape according to second accepting hole 52, and described
The length of first magnetic element 62 and second magnetic element 64 is adapted with the length of second accepting hole 52, and described
The width of one magnetic element 62 and second magnetic element 64 is adapted with the width of second accepting hole 52.
First magnetic element 62 and second magnetic element 64 are permanent magnet, 62 He of the first magnetic element
Fixed permanent magnetic field is formed between second magnetic element 64.
Referring to Fig. 8, the armature 70 include U-shaped interconnecting piece 72, the first armature 74 and the second armature plate 76, described first
Armature 74 and second armature plate 76 are respectively fixedly connected in the both ends of the U-shaped interconnecting piece 72, and are parallel to each other.
The U-shaped interconnecting piece 72, the first armature 74 and the second armature plate 76 collectively form U-typed armature 70, and described first
Armature 74 and second armature plate 76 may be largely trapezoidal in shape.
The U-shaped interconnecting piece 72, the first armature 74 and the second armature plate 76 are made of soft magnetic materials.When the coil 40
Behind the magnetic field for producing checker, first armature 74 can be magnetized, and the direction of magnetization is with the variation of magnetic direction
And change；After first armature 74 is magnetized, it can be formed between first magnetic element 62 and second magnetic element 64
It deflects under the action of fixed permanent magnetic field, is changed according to the alternating of the direction of magnetization, generate alternating movement up and down.
First armature 74 runs through and is vacantly contained in first accepting hole 42 and second accepting hole 52, can be with
Understand, described first armature, 74 a part is vacantly contained in the first accepting hole 42 of coil 40, first armature 74
Another part is vacantly contained in the second accepting hole 52 of the iron core 50, and is set to first magnetic element 62 and described
Between two magnetic elements 64.
One end of first armature 74 is provided with the first protrusion 742, and the first protrusion 742 of first armature 74 extends
The shape of second accepting hole 52 out, first protrusion 742 is cuboid, and the length of first protrusion 742 is much smaller than
The length of described first armature, 74 one end, the height of first protrusion 742 are equal to the height of described first armature, 74 one end, the
One protrusion 742 can be set as needed as different shapes, such as: it is square, trapezoidal, oval and round etc..Described first
Protrusion 742 offers the second fixation hole (figure does not indicate), and for fixing the conductive bar 80, the conductive bar 80 is thin round bar
Shape, one end of the conductive bar 80 are fixedly connected on second fixation hole (figure does not indicate), the other end of the conductive bar 80
Through the first fixation hole 32 for being connected to the vibrating diaphragm 30.
Second armature plate 76 is set between vibrating diaphragm 30 and coil 40, and second armature plate 76 is fixedly connected on one side
In the outer surface of the iron core 50.
Referring to Fig. 9, the pad 90 is for receiving external communication electric signal, the pad 90 include the first pad 92,
Second pad 94, the first conducting wire 96 and the second conducting wire 98, one end of first conducting wire 96 are electrically connected to first pad 92,
The other end of first conducting wire 96 is electrically connected to the first socket of first electric connecting terminal 44 (figure does not indicate)；Described second
One end of conducting wire 98 is electrically connected to second pad 94, and the other end of second conducting wire 98 is electrically connected to described second and is electrically connected
The second socket (figure does not indicate) of end (figure does not indicate) is connect, and then forms primary Ioops, the friendship for receiving the pad 90
Signal transduction is flowed to coil 40, makes to produce the magnetic field of checker around coil 40.
The concrete operating principle of above-mentioned moving iron loud speaker is that the AC signal that the pad 90 receives is conducted to coil 40,
Make to produce the magnetic field of checker around coil 40, after coil 40 produces the magnetic field of checker, due to described first
A part of armature 74 is vacantly contained in the second accepting hole 52 of the coil 40, and thus armature 70 is magnetized, and the side of magnetization
Change to the variation with magnetic direction.Since another part of first armature 74 is set to first magnetic element
Between 62 and second magnetic element 64, the armature 70 is in first magnetic element 62 and second magnetic element 64
It deflects under the action of the fixation permanent magnetic field of formation, is changed according to the alternating of the direction of magnetization, generate alternating up and down
Movement, the movement of the armature 70 drives the movement of the conductive bar 80, and then drives the vibration of the vibrating diaphragm 30, the vibrating diaphragm
30 movement can vibrate air and generate sound.
In some embodiments, all elements of moving iron loud speaker, shell 12 as above, lower casing 14, sound guide tube 16, armature
70, coil 40, the surface of magnet assembly 60 can all be covered with waterproof nano coating.Preferably, waterproof nano coating is chosen as containing
Fluorosilicone, it is contemplated that the adverse effect that the thickness of waterproof nano coating can generate vibrating diaphragm 30, optionally, flucride siloxane is thick
Degree is 400-500nm.In the present embodiment, it using solwution method prepared by waterproof nano coating, specific preparation method is such as
Under:
1, sulfenyl S-H and vinyl CH=CH is configured2The nano coating solution of (molar ratio 1:1.15), passes through free radical
The grafting of organic fluorine chain and polysiloxanes is realized in addition reaction, is initiator with azodiisobutyronitrile, to obtain waterproof nano
Coating solution.Contain sulfide group in flucride siloxane structure using the synthesis of this route, with highly polar and nucleophilicity Asia
Sulfuryl.Specific reaction equation is as follows:
As R=H, Rf=CH2O(CH2)2C6F13, C6F5；
Work as R=CH3When, Rf=CO2(CH2)2C6F13；
2, waterproof nano coating solution is poured into reaction vessels, room temperature is controlled at 25 DEG C or so.
3,30 substrate of vibrating diaphragm is put into and is impregnated 2-3 seconds inside the waterproof nano coating solution, slowly picked up with hand immediately
30 substrate of vibrating diaphragm.
4, the upper surface of 30 substrate of vibrating diaphragm stands 40-60 seconds upward, so that waterproof nano coating is formed in 30 substrate of vibrating diaphragm
Upper surface.Pay attention to not thering is sharp object to touch 30 surface of vibrating diaphragm during standing in order to avoid destroying waterproof nano coating
Formation.
Waterproof nano coating upper surface deposits wearing layer, and 30 substrate of vibrating diaphragm shows good mechanical performance, 30 base of vibrating diaphragm
The hardness at bottom can be increased to HV2000 or so by HV1200 or so, and wear-resisting property and corrosion resisting property have bigger raising.
Wearing layer is chosen as tungsten-cobalt alloy nano coating.The quality of vibrating diaphragm 30 can be generated not in view of tungsten-cobalt alloy nano coating is blocked up
Good influence, the maximum gauge of tungsten-cobalt alloy nano coating are 1um.
The frequency response output of traditional moving iron loud speaker, medium-high frequency section is excellent, and bass effect does not protrude.Compared with prior art
Compared with the woofer in the present invention is based on balanced armature energy-conversion technique (referred to as " dynamic iron technology "), and the present invention passes through above-mentioned
Sound designs out, can achieve and inhibits medium-high frequency output, promotes bass effect.This mode can make full use of vibrating diaphragm and magnet
Size and ability, without changing magnetic Circuit Design.As described in Figure, dash-dotted gray line is common moving iron loud speaker frequency response curve, black
Solid line is the effect frequency response curve of bass moving iron loud speaker of the invention.As can be seen that the curve response of its low-frequency range is obvious high
In medium-high frequency section, to reach the bass boost effect of anticipation.
The present invention is the woofer based on miniature balanced armature technology simultaneously.Compared to dynamic with same output sound pressure level
Coil unit, miniature balanced armature unit volume can accomplish much smaller.It can satisfy current electronic product to be thinned increasingly and small
The demand of type.
The embodiment of the present invention also provides a kind of earphone, including the moving iron loud speaker in any of the above-described embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；At this
It under the thinking of invention, can also be combined between the technical characteristic in above embodiments or different embodiment, step can be with
It is realized with random order, and there are many other variations of different aspect present invention as described above, for simplicity, they do not have
Have and is provided in details；Although the present invention is described in detail referring to the foregoing embodiments, the ordinary skill people of this field
Member is it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of skill
Art feature is equivalently replaced；And these are modified or replaceed, each reality of the application that it does not separate the essence of the corresponding technical solution
Apply the range of a technical solution.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441612.9A CN109348375A (en) | 2018-11-29 | 2018-11-29 | A moving iron speaker and earphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441612.9A CN109348375A (en) | 2018-11-29 | 2018-11-29 | A moving iron speaker and earphones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109348375A true CN109348375A (en) | 2019-02-15 |
Family
ID=65319163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811441612.9A Pending CN109348375A (en) | 2018-11-29 | 2018-11-29 | A moving iron speaker and earphones |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109348375A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113099361A (en) * | 2020-01-09 | 2021-07-09 | 北京小米移动软件有限公司 | Loudspeaker, audio module and terminal equipment |
| CN113519170A (en) * | 2020-07-31 | 2021-10-19 | 华为技术有限公司 | Speaker and electronic equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1079664A2 (en) * | 1999-08-27 | 2001-02-28 | Harman Audio Electronic Systems GmbH | Electrodynamic driver |
| EP1145770A2 (en) * | 2000-04-14 | 2001-10-17 | Tokin Corporation | Multi-functional vibration actuator capable of supressing an unstable operation around a resonance frequency |
| CN102355617A (en) * | 2011-08-15 | 2012-02-15 | 苏州恒听电子有限公司 | Moving-iron unit for loudspeaking device |
| CN103024647A (en) * | 2011-09-23 | 2013-04-03 | 苏州恒听电子有限公司 | Moving iron type microphone unit for bone-conduction hearing aid and loudspeaker |
| CN204482029U (en) * | 2015-04-13 | 2015-07-15 | 常州阿木奇声学科技有限公司 | A kind of speaker motor assembly and apply the dynamic iron unit of this motor sub-assembly |
| CN105228045A (en) * | 2015-09-30 | 2016-01-06 | 苏州亿欧得电子有限公司 | Self-align receiver |
| CN206490829U (en) * | 2017-01-22 | 2017-09-12 | 潍坊歌尔电子有限公司 | Moving-iron type sound-producing device |
| CN206775677U (en) * | 2017-03-31 | 2017-12-19 | 苏州逸巛声学科技有限公司 | A kind of receiver |
| CN209488799U (en) * | 2018-11-29 | 2019-10-11 | 深圳倍声声学技术有限公司 | A kind of moving iron loud speaker and earphone |
-
2018
- 2018-11-29 CN CN201811441612.9A patent/CN109348375A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1079664A2 (en) * | 1999-08-27 | 2001-02-28 | Harman Audio Electronic Systems GmbH | Electrodynamic driver |
| EP1145770A2 (en) * | 2000-04-14 | 2001-10-17 | Tokin Corporation | Multi-functional vibration actuator capable of supressing an unstable operation around a resonance frequency |
| CN102355617A (en) * | 2011-08-15 | 2012-02-15 | 苏州恒听电子有限公司 | Moving-iron unit for loudspeaking device |
| CN103024647A (en) * | 2011-09-23 | 2013-04-03 | 苏州恒听电子有限公司 | Moving iron type microphone unit for bone-conduction hearing aid and loudspeaker |
| CN204482029U (en) * | 2015-04-13 | 2015-07-15 | 常州阿木奇声学科技有限公司 | A kind of speaker motor assembly and apply the dynamic iron unit of this motor sub-assembly |
| CN105228045A (en) * | 2015-09-30 | 2016-01-06 | 苏州亿欧得电子有限公司 | Self-align receiver |
| CN206490829U (en) * | 2017-01-22 | 2017-09-12 | 潍坊歌尔电子有限公司 | Moving-iron type sound-producing device |
| CN206775677U (en) * | 2017-03-31 | 2017-12-19 | 苏州逸巛声学科技有限公司 | A kind of receiver |
| CN209488799U (en) * | 2018-11-29 | 2019-10-11 | 深圳倍声声学技术有限公司 | A kind of moving iron loud speaker and earphone |
Non-Patent Citations (4)
| Title |
|---|
| 58D73E4A1801: "浅谈喇叭音圈、振动膜材料及其对耳机音质的音效", Retrieved from the Internet <URL:jianshu.com/p/4462a66d7d80> * |
| GO HARUMI: "digital direct-driven speaker architecture using segmented pulse shaping technique", 《2016 14TH IEEE INTERNATIONAL NEWCAS》 * |
| 李强: "运动型无线耳机的设计研究", 《中国优秀硕士论文全文数据库信息科技辑》 * |
| 贺志坚: "动铁式受话器的原理与应用", 《电声技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113099361A (en) * | 2020-01-09 | 2021-07-09 | 北京小米移动软件有限公司 | Loudspeaker, audio module and terminal equipment |
| CN113519170A (en) * | 2020-07-31 | 2021-10-19 | 华为技术有限公司 | Speaker and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020135281A1 (en) | Screen vibration sound production apparatus and electronic product | |
| WO2020024677A1 (en) | Speaker | |
| CN104202700B (en) | Microphone device | |
| CN214591964U (en) | Dual-drive double-sided sounding micro loudspeaker with novel structure | |
| CN214381369U (en) | Sound production device and earphone | |
| CN115396794B (en) | Multifunctional sound device | |
| CN112770237B (en) | Sound monomer | |
| US20200092652A1 (en) | Transducer vibrating diaphragm structure, flat panel speaker and earphone therewith | |
| CN209488799U (en) | A kind of moving iron loud speaker and earphone | |
| CN111800714B (en) | Speaker and electronic equipment | |
| CN109195080A (en) | Vibrate output device and the portable electronic device including vibrating output device | |
| CN109348375A (en) | A moving iron speaker and earphones | |
| CN117641207A (en) | Sound producing device and electronic equipment | |
| CN105681979B (en) | Loudspeaker | |
| US10869135B2 (en) | Speaker | |
| WO2020135289A1 (en) | Screen vibration sound production apparatus and electronic product | |
| CN207475864U (en) | A kind of sound-producing device and electronic equipment | |
| WO2022068082A1 (en) | Sound-emitting device and electronic product comprising sound-emitting device | |
| CN108391211B (en) | Loudspeaker | |
| CN207475865U (en) | A kind of sound-producing device and electronic equipment | |
| US20230145438A1 (en) | Multifunctional Electromagnetic Transducer | |
| WO2022111369A1 (en) | Voice coil assembly and sound-producing device | |
| CN205385601U (en) | Loudspeaker | |
| CN101803403B (en) | Ultra slim type acoustic transducer | |
| CN209608856U (en) | A kind of electrostatic loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |