CN107682793A - A kind of sound-producing device - Google Patents
A kind of sound-producing device Download PDFInfo
- Publication number
- CN107682793A CN107682793A CN201711092410.3A CN201711092410A CN107682793A CN 107682793 A CN107682793 A CN 107682793A CN 201711092410 A CN201711092410 A CN 201711092410A CN 107682793 A CN107682793 A CN 107682793A
- Authority
- CN
- China
- Prior art keywords
- vibrating diaphragm
- magnetic circuit
- sound
- housing
- voice coil
- 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.)
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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
- H04R9/06—Loudspeakers
-
- 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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The invention discloses a kind of sound-producing device, including housing, the vibrating diaphragm that is arranged in housing, and two magnetic circuit systems for being symmetricly set on vibrating diaphragm both sides, the magnetic circuit system include yoke and the magnet being arranged in yoke, washer are additionally provided with the magnet；Also include two voice coil loudspeaker voice coils for being symmetrically distributed in vibrating diaphragm both sides, one end of each voice coil loudspeaker voice coil is connected on vibrating diaphragm, and the other end is combined together with corresponding magnetic circuit system.The sound-producing device of the present invention so that easily select the vibrating diaphragm matched with magnetic circuit system, the two is combined together the low-frequency distortion that can substantially reduce generating means and resonant frequency f0Neighbouring distortion.
Description
Technical field
The present invention relates to electroacoustic conversion art, more specifically to a kind of sound-producing device.
Background technology
Loudspeaker is acoustical device important in electronic equipment, it include housing, installation in the housing vibrating diaphragm, be fixedly connected
Voice coil loudspeaker voice coil and magnetic circuit system on vibrating diaphragm.Wherein, voice coil loudspeaker voice coil is located in the magnetic gap of magnetic circuit system formation, when voice coil loudspeaker voice coil is receiving sound
During frequency signal, it drives diaphragm oscillations in the presence of magnetic circuit system, so as to instigate surrounding air sounding, and then realizes electric energy extremely
The conversion of acoustic energy.
This traditional loadspeaker structure, when it is operated in low frequency condition, voice coil loudspeaker voice coil can produce larger displacement.Now magnetic
Road system weakens significantly to the active force of voice coil loudspeaker voice coil, plus the influence of now vibrating diaphragm stiffness factor, larger low frequency THD can be caused to lose
Very.
The content of the invention
It is an object of the present invention to provide a kind of new solution of sound-producing device.
According to the first aspect of the invention, there is provided a kind of sound-producing device, including housing, the vibrating diaphragm that is arranged in housing,
And magnetic circuit self-test, the magnetic circuit component include two magnetic circuit systems for being symmetricly set on vibrating diaphragm both sides, the magnetic circuit system bag
Yoke and the magnet being arranged in yoke are included, washer is additionally provided with the magnet；Also it is symmetrically distributed in and shakes including two
The voice coil loudspeaker voice coil of film both sides, one end of each voice coil loudspeaker voice coil are connected on vibrating diaphragm, and the other end coordinates with the magnetic gap of corresponding magnetic circuit system
Together.
Alternatively, the housing includes the first housing, the second housing for being symmetrically distributed in vibrating diaphragm both sides, the vibrating diaphragm clamping
Between the first housing, the second housing；And two magnetic circuit systems are separately positioned on the first housing, on the second housing.
Alternatively, the yoke in each magnetic circuit system is provided with four, and four independent yokes surround a square
Shape structure.
Alternatively, the yoke in each magnetic circuit system is provided with one.
Alternatively, the magnetic circuit system is single magnetic structure or two magnetic route structure.
Alternatively, the washer is together with housing injection, and the washer exposes from housing；In the magnetic circuit system
Magnet location and installation on washer.
Alternatively, the vibrating diaphragm is plane vibrating diaphragm.
Alternatively, it is provided with top dome on the vibrating diaphragm.
Alternatively, the top dome is provided with two, is mounted on the both sides of vibrating diaphragm.
Alternatively, the central area of the vibrating diaphragm is provided with hollow out, and the top dome is provided with one, and it is to be covered in vibrating diaphragm
The FPCB plates of void region；In two voice coil loudspeaker voice coils of vibrating diaphragm both sides, respectively there is a lead to be connected on FPCB plates.
The sound-producing device of the present invention, as a result of two magnetic circuit systems for being symmetrically distributed in vibrating diaphragm both sides, no matter when shaking
Towards during the larger displacement of which side generation, the voice coil loudspeaker voice coil for always having side can be deep into the magnetic gap of magnetic circuit system film；Also
It is to say, even if larger displacement occurs for vibrating diaphragm, voice coil loudspeaker voice coil can still coordinate one with the higher region of magnetic density in magnetic circuit system
Rise.Using the magnetic circuit component of symmetrical structure so that whole magnetic circuit component can have symmetrical BL (X) so that easily select
Matched vibrating diaphragm, the two is combined together the low-frequency distortion that can substantially reduce generating means and resonant frequency f0Near
Distortion.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is the profile of sound-producing device of the present invention.
Fig. 2 is the part-structure explosive view of sound-producing device of the present invention.
Fig. 3 is the first implementation structural representation of magnetic circuit system of the present invention.
Fig. 4 is second of implementation structural representation of magnetic circuit system of the present invention.
Fig. 5 is another profile for implementing structure of sound-producing device of the present invention.
Fig. 6 is the structural representation of washer and housing of the present invention.
Fig. 7 is the third implementation structural representation of magnetic circuit system of the present invention.
Fig. 8 is the exploded perspective view of voice coil loudspeaker voice coil and vibrating diaphragm of the present invention.
Fig. 9, Figure 10 are the vibrating diaphragm implementation schematic diagrames different from two kinds of magnetic circuit component matching.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The invention provides a kind of sound-producing device, and it includes housing, vibrating diaphragm, and magnetic circuit component, wherein, magnetic circuit component bag
Include two magnetic circuit systems for being symmetricly set on vibrating diaphragm both sides.
Vibrating diaphragm can be installed in the housing, and magnetic circuit system is distributed in the opposite sides of vibrating diaphragm so that two magnetic circuit system phases
It is symmetrical for vibrating diaphragm.A voice coil loudspeaker voice coil is also respectively provided with the both sides of vibrating diaphragm, one end of each voice coil loudspeaker voice coil is connected on vibrating diaphragm, the other end
It is combined together with the magnetic circuit system of the side.After two voice coil loudspeaker voice coils are passed through alternating current, two voice coil loudspeaker voice coils respectively with respective magnetic circuit system
It is under unified central planning to be combined, so as to drive vibrating diaphragm sounding jointly.
The sound-producing device of the present invention, it can be receiver, loudspeaker or well-known to those skilled in the art other
Sound-producing device.The sound-producing device may apply in electronic equipment, such as mobile phone, computer, IPAD, player etc..Therefore, this hair
Bright to additionally provide a kind of electronic equipment, it includes above-mentioned sound-producing device.
The sound-producing device of the present invention, as a result of two magnetic circuit systems for being symmetrically distributed in vibrating diaphragm both sides, no matter when shaking
Towards during the larger displacement of which side generation, the voice coil loudspeaker voice coil for always having side can be deep into the magnetic gap of magnetic circuit system film；Also
It is to say, even if larger displacement occurs for vibrating diaphragm, voice coil loudspeaker voice coil can still coordinate one with the higher region of magnetic density in magnetic circuit system
Rise, so as to substantially reduce the low-frequency distortion of generating means.
Bl (x) curves, kms (x) curves and Rms (v) curves of significant design amount inside sound-producing device are measured, is with vibrating diaphragm
Displacement x and its derivative be that speed v is variable, so need approximately THD is represented with displacement x.
It is more remote apart from magnetic gap center when voice coil loudspeaker voice coil moves in magnetic gap for magnetic circuit system, magnetic field intensity B
Smaller, Bl values are smaller.Therefore Bl (x) curves of the magnetic circuit component in sound-producing device are nonlinear.
In addition, when voice coil loudspeaker voice coil moves in equilibrium displacement, displacement x is smaller, and restoring force is mainly provided by ring deformation, replys
Power is smaller；When voice coil loudspeaker voice coil displacement x is bigger, ring deformation is bigger, and material the more stretches the more big, and restoring force is bigger, therefore, stiffness factor
K=f/x increases as displacement x increases, i.e. Kms (x) is a nonlinear curve.
Furthermore the mechanical damping Rms (v) of sound-producing device vibrational system changes with the difference of diaphragm oscillations speed, shakes
Film vibration velocity v is the first derivative of displacement x.Therefore mechanical damping Rms (v) is a nonlinear curve.
When sound-producing device is in low frequency, amplitude x is larger, and speed v is smaller, and damping force Rms (v) v of sound-producing device can be neglected,
Restoring force reaches maximum.Now, driving force Bl (x) i and restoring force Kms (x) x are the major influence factors of low-frequency harmonics distortion,
In the case of not considering that vibrating diaphragm produces diaphagras or polarization, the vibrational system of loudspeaker can be reduced to shaking for a particle
Dynamic, what it was subject to, which makes a concerted effort, is：F (x)=Bl (x) i-Kms (x) x.
When in low frequency omega, displacement x is relatively large, and F (x) deviates F (x)=- ω not as the change of displacement x is big2X's
Linear relationship, the distortion of sound-producing device will be reduced.
The sound-producing device of the present invention, because magnetic circuit component is two magnetic circuit systems for being symmetricly set on vibrating diaphragm both sides, this is just
So that Bl (x) curves that the magnetic circuit component provides relative to displacement X origins are symmetrical, and by adjust voice coil loudspeaker voice coil length and with
The size of its magnetic gap coordinated so that BL (X) is flat straight line, or is gradually bent up with displacement X increase
Bent curve.
This allows for relatively easily being combined together with magnetic circuit component from corresponding vibrating diaphragm, the two common work
With so as to reducing the low-frequency harmonics distortion of sound-producing device.
With reference to figure 9, such as when the BL (X) of magnetic circuit component is the curve being gradually bent upwards with displacement X increase,
Plane vibrating diaphragm can be then selected, Kms (x) curves of plane vibrating diaphragm itself are exactly with displacement X increase and gradually upward
Bending.The two is combined together, so that F (x)=Bl (x) i-Kms (x) x can be without departing from F (x)=- ω2X's is linear
Relation.
With reference to figure 10, and when the BL (X) of magnetic circuit component is flat straight line, then can select with flat Kms (x)
Vibrating diaphragm, such as the design to vibrating diaphragm ring shape, decorative pattern shape can be passed through so that the Kms (x) of vibrating diaphragm is flat straight line.This
Kind magnetic circuit component is combined together with vibrating diaphragm so that F (x)=Bl (x) i-Kms (x) x can be without departing from F (x)=- ω2X line
Sexual intercourse.
In resonant frequency f0Near, the work characteristics of sound-producing device is：The vibration velocity of vibrating diaphragm is maximum, equilbrium position (x=
0) restoring force at place is zero (i.e. Kms (x) x=0), and now driving force Bl (x) i and damping force Rms (v) dx/dt are main shadow
The factor of sound.Therefore, using the magnetic circuit component of symmetrical structure so that BL (X) symmetrically, now when displacement X is located at equilbrium position, drives
Power reaches maximum, driving force and damping force best match, therefore can significantly reduce sound-producing device resonant frequency f0Neighbouring
THD。
Fig. 1, Fig. 2 are illustrated that a kind of specific implementation structure of sound-producing device of the present invention.In this embodiment, housing 1
The first housing 1a, the second housing 1b including being symmetrically distributed in the both sides of vibrating diaphragm 4, and the first housing 1a, the second housing 1b structure
It is identical, it is symmetrically distributed in the both sides of vibrating diaphragm 4.With reference to the direction shown in figure 1, vibrating diaphragm 4 is clamped in the first housing 1a and second shell
Between body 1b, to realize fixation of the vibrating diaphragm 4 on housing.Wherein, the first housing 1a is distributed in the lower section of vibrating diaphragm 4, the second housing
1b is distributed in the top of vibrating diaphragm 4.
Two magnetic circuit systems are designated as the first magnetic circuit 2 being mounted opposite on the first housing 1a respectively, and are mounted opposite
The second magnetic circuit 3 on second housing 1b, and the structure of two magnetic circuit systems is identical, is symmetrically distributed in the both sides up and down of vibrating diaphragm 4.
The both sides of vibrating diaphragm 4 are respectively arranged with a voice coil loudspeaker voice coil 5, and one end of voice coil loudspeaker voice coil 5 is connected on vibrating diaphragm 4, the other end then with corresponding magnetic circuit system
The magnetic gap of system is combined together.Two voice coil loudspeaker voice coils 5 are combined together with the first magnetic circuit 2, the second magnetic circuit 3, to drive
The dynamic vibration sounding of vibrating diaphragm 4.
The magnetic circuit system of the present invention can be that single magnetic structure or double magnetic circuit or those skilled in the art institute are ripe
The other magnetic structures known.It includes yoke and the magnet being arranged in yoke, and washer is additionally provided with magnet.Magnetic circuit
Structure is different, then magnet is also different from the distribution mode of yoke, this according to the actual requirements depending on.
Because the structure of the first magnetic circuit 2, the second magnetic circuit 3 is identical, now by taking the first magnetic circuit 2 as an example, to the magnetic circuit system of the present invention
System is described in detail.In a specific embodiment of the invention, magnetic circuit system can be single magnetic structure, reference chart
1st, Fig. 3, the yoke 20 in the first magnetic circuit 2 can be provided with four, and this four independent yokes 20 are arranged on the first housing 1a
Afterwards, a hollow rectangular configuration is surrounded jointly.
First magnetic circuit 2 also includes the magnet 21 being correspondingly arranged in yoke 20, and the washer 22 being arranged on magnet 21.
The magnetic gap 23 of magnetic circuit system is constituted between the side wall of magnet 21 and yoke 20.When installation, one end connection of voice coil loudspeaker voice coil 5
On vibrating diaphragm 4, the other end is stretched into the magnetic gap 23 of the magnetic circuit system.
In another specific embodiment of the invention, the yoke 20 in the first magnetic circuit 2 can be provided with one, reference
Fig. 4.Yoke 20 includes bottom 20a, and forms the side of sidewall portion 20b in bottom 20a surroundings position.Four side of sidewall portion 20b examples
It such as may be formed at bottom 20a four fringe regions.Magnet 21 is correspondingly arranged on four, is respectively distributed to bottom 20a surrounding
Position, and each magnet 21 defines the magnetic gap 23 of magnetic circuit system with corresponding side of sidewall portion 20b.
Preferably, its structure annular in shape is made formed with hollow out in yoke bottom 20a central area；Side of sidewall portion 20b shapes
Into the marginal position in hollow out.
In another specific embodiment of the invention, magnetic circuit system can be two magnetic route structure, as follows：First magnetic circuit
Yoke 20 in 2 is in tabular, in addition to is arranged on the centring magnet 26 of the central region of yoke 20, and the centring magnet 26 can lead to
Glue sticking is crossed in the central area of yoke 20, center washer 27 can be also bonded with the end face of centring magnet 26.First magnetic circuit 2
Also include the side magnet 24 set around centring magnet 26.Side magnet 24 is provided with four, is mounted in yoke 20 and center magnetic
On the relative position of 26 4 side walls of iron；And it is each be additionally provided with the end face of magnet 24 while washer 25.Side magnet 24 with
The magnetic gap of the first magnetic circuit 2 is constituted between the side wall of centring magnet 26.
First magnetic circuit 2 is arranged on the first housing 1a, and the second magnetic circuit 3 is arranged on the second housing 1b.Specifically, first shell
Body 1a, the second housing 1b have hollow inner chamber, are provided with the inwall of two housings for installing respective magnetic circuit system
End face.The location and installation of magnetic circuit system is realized by the end face.
In one preferred embodiment of the invention, washer in magnetic circuit system can together with housing injection, and
The washer exposes from housing；The structures such as the magnet in magnetic circuit system can be with location and installation on the washer.
Four independent magnetic yoke structures either shown in Fig. 3, or the integral magnetic yoke structure shown in Fig. 4, its magnet
Four washers 22 above can be separate or integral.In one preferred embodiment of the invention,
Washer 22 is integral, and it is annular in shape, and the washer 22 is incorporated in by way of injection on the inwall of the first housing 2 so that should
The locating surface and mounting surface that washer 22 can be installed as the first magnetic circuit 2, to realize the location and installation of the first magnetic circuit 2.
When magnetic circuit system use above-mentioned two magnetic route structure in, then with housing injection together with can be side washer 25,
The side washer 25 can be integral, annularly, no longer illustrate herein.
The vibrating diaphragm 4 of the present invention can use traditional diaphragm structure, and it for example may include positioned at the vibration section of central region,
It is used for the connecting portion for connecting housing, and the ring portion between connecting portion and vibration section, the knot of this vibrating diaphragm positioned at edge
Structure belongs to the common knowledge of those skilled in the art, no longer illustrates herein.In one preferred embodiment of the invention,
The vibrating diaphragm 4 of the present invention is plane vibrating diaphragm.The vibrating diaphragm of flatness can preferably suppress the polarization of vibrating diaphragm.
Preferably, in order to improve the vibration performance of vibrating diaphragm 4, top dome 6 is provided with vibrating diaphragm 4.Wherein, in order to ensure to send out
The symmetry of acoustic device, top dome 6 may be provided with two, be covered in the opposite sides of vibrating diaphragm 4 respectively, with reference to figure 1.
In one preferred embodiment of the invention, with reference to figure 8, the central area of vibrating diaphragm 4 is provided with hollow out 40, ball
Top 6 is provided with one, and it is the FPCB plates for being covered in the void region of vibrating diaphragm 4.That is, FPCB plates can be used as vibrating diaphragm 4 in itself
Roof structure, it can be covered in the upper surface of vibrating diaphragm 4, can also be covered in the lower surface of vibrating diaphragm 4, by the center of vibrating diaphragm 4
The hollow out 40 in region covers.The FPCB plates can also play a part of conducting, in order to send out while top dome effect is played
The transmission of acoustic device internal circuit signal.
Wherein, the lead positioned at the voice coil loudspeaker voice coil of the both sides of vibrating diaphragm 4 is connected on the FPCB plates.Specifically, two voice coil loudspeaker voice coils can
The first voice coil loudspeaker voice coil 51 positioned at the lower section of vibrating diaphragm 4, and the second voice coil loudspeaker voice coil 50 above vibrating diaphragm 4 are designated as respectively, with reference to figure 8.When
After one voice coil loudspeaker voice coil 51, the second voice coil loudspeaker voice coil 50 are mounted on the both sides of vibrating diaphragm 4, the lead 51a on the first voice coil loudspeaker voice coil 51 can be by way of welding
It is connected on FPCB plates, another lead 51b back-flexings take the shape of the letter U, and are stretched out from housing.Lead 50a on second voice coil loudspeaker voice coil 50
It can be connected to by way of welding on FPCB plates, another lead 50b back-flexings take the shape of the letter U, and are stretched out from housing.
Wherein, lead 51a is from the extraction location on the first voice coil loudspeaker voice coil 51, with lead 50a from the extraction position on the second voice coil loudspeaker voice coil 50
Put relative to FPCB plate Central Symmetries.With reference to the view direction of figure 8, lead 51a is drawn from the lower right corner of the first voice coil loudspeaker voice coil 51, and is drawn
Line 50a is drawn from the upper left corner of the second voice coil loudspeaker voice coil 50.First voice coil loudspeaker voice coil 51, the second voice coil loudspeaker voice coil 50 another lead then can also be relative to
FPCB plate Central Symmetries, are no longer illustrated herein.Using such structure design so that two voice coil structures pair can be ensured
Claim distribution, to suppress the generation of vibrating diaphragm polarization as far as possible.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
- A kind of 1. sound-producing device, it is characterised in that：Including housing, the vibrating diaphragm being arranged in housing, and magnetic circuit component, the magnetic Road component includes two magnetic circuit systems for being symmetricly set on vibrating diaphragm both sides, and the magnetic circuit system includes yoke and is arranged on yoke On magnet, be additionally provided with washer on the magnet；Also include two voice coil loudspeaker voice coils for being symmetrically distributed in vibrating diaphragm both sides, each voice coil loudspeaker voice coil One end be connected on vibrating diaphragm, the other end is combined together with the magnetic gap of corresponding magnetic circuit system.
- 2. sound-producing device according to claim 1, it is characterised in that：The housing includes being symmetrically distributed in vibrating diaphragm both sides First housing, the second housing, the vibrating diaphragm are clamped between the first housing, the second housing；And two magnetic circuit systems are set respectively In the first housing, second shell body.
- 3. sound-producing device according to claim 1, it is characterised in that：Yoke in each magnetic circuit system is provided with four Individual, four independent yokes surround a rectangular configuration.
- 4. sound-producing device according to claim 1, it is characterised in that：Yoke in each magnetic circuit system is provided with one It is individual.
- 5. the sound-producing device according to claim 3 or 4, it is characterised in that：The magnetic circuit system be single magnetic structure or Two magnetic route structure.
- 6. sound-producing device according to claim 1, it is characterised in that：Together with the washer is molded with housing, and it is described Washer exposes from housing；Magnet location and installation in the magnetic circuit system is on washer.
- 7. sound-producing device according to claim 1, it is characterised in that：The vibrating diaphragm is plane vibrating diaphragm.
- 8. sound-producing device according to claim 1, it is characterised in that：Top dome is provided with the vibrating diaphragm.
- 9. sound-producing device according to claim 8, it is characterised in that：The top dome is provided with two, is mounted on vibrating diaphragm Both sides.
- 10. sound-producing device according to claim 8, it is characterised in that：The central area of the vibrating diaphragm is provided with hollow out, institute State top dome and be provided with one, it is the FPCB plates for being covered in vibrating diaphragm void region；In two voice coil loudspeaker voice coils of vibrating diaphragm both sides, respectively have A piece lead is connected on FPCB plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092410.3A CN107682793B (en) | 2017-11-08 | 2017-11-08 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711092410.3A CN107682793B (en) | 2017-11-08 | 2017-11-08 | Sound production device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107682793A true CN107682793A (en) | 2018-02-09 |
| CN107682793B CN107682793B (en) | 2020-09-22 |
Family
ID=61145791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711092410.3A Active CN107682793B (en) | 2017-11-08 | 2017-11-08 | Sound production device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107682793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519678A (en) * | 2019-09-19 | 2019-11-29 | 深圳市微运动信息科技有限公司 | A kind of double magnetic double voice coil oscillators |
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| CN1060754A (en) * | 1991-01-07 | 1992-04-29 | 张卫东 | Ball type vibration membrane loudspeaker |
| CN2203517Y (en) * | 1994-07-31 | 1995-07-12 | 巫世琦 | Coil-moving speaker with full-symmetry structure |
| CN101340738A (en) * | 2007-07-05 | 2009-01-07 | 中国科学院声学研究所 | Super large power electromagnetic suction push-pull driving sound source |
| CN203661281U (en) * | 2013-11-25 | 2014-06-18 | 广东欧珀移动通信有限公司 | Plane diaphragm speaker |
| CN204291372U (en) * | 2014-12-23 | 2015-04-22 | 歌尔声学股份有限公司 | Microspeaker |
| CN204539462U (en) * | 2015-03-24 | 2015-08-05 | 歌尔声学股份有限公司 | Microspeaker |
| CN105992110A (en) * | 2016-05-05 | 2016-10-05 | 歌尔股份有限公司 | Sound generating device and sound generating device module group |
| CN207652682U (en) * | 2017-11-08 | 2018-07-24 | 歌尔股份有限公司 | A kind of sound-producing device |
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2017
- 2017-11-08 CN CN201711092410.3A patent/CN107682793B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060754A (en) * | 1991-01-07 | 1992-04-29 | 张卫东 | Ball type vibration membrane loudspeaker |
| CN2203517Y (en) * | 1994-07-31 | 1995-07-12 | 巫世琦 | Coil-moving speaker with full-symmetry structure |
| CN101340738A (en) * | 2007-07-05 | 2009-01-07 | 中国科学院声学研究所 | Super large power electromagnetic suction push-pull driving sound source |
| CN203661281U (en) * | 2013-11-25 | 2014-06-18 | 广东欧珀移动通信有限公司 | Plane diaphragm speaker |
| CN204291372U (en) * | 2014-12-23 | 2015-04-22 | 歌尔声学股份有限公司 | Microspeaker |
| CN204539462U (en) * | 2015-03-24 | 2015-08-05 | 歌尔声学股份有限公司 | Microspeaker |
| CN105992110A (en) * | 2016-05-05 | 2016-10-05 | 歌尔股份有限公司 | Sound generating device and sound generating device module group |
| CN207652682U (en) * | 2017-11-08 | 2018-07-24 | 歌尔股份有限公司 | A kind of sound-producing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519678A (en) * | 2019-09-19 | 2019-11-29 | 深圳市微运动信息科技有限公司 | A kind of double magnetic double voice coil oscillators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107682793B (en) | 2020-09-22 |
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