CN107124683A - Loudspeaker monomer and electronic equipment - Google Patents
Loudspeaker monomer and electronic equipment Download PDFInfo
- Publication number
- CN107124683A CN107124683A CN201710374472.7A CN201710374472A CN107124683A CN 107124683 A CN107124683 A CN 107124683A CN 201710374472 A CN201710374472 A CN 201710374472A CN 107124683 A CN107124683 A CN 107124683A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric membrane
- loudspeaker monomer
- detection sensor
- vibrating diaphragm
- vibration component
- 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
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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
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of loudspeaker monomer and electronic equipment, the loudspeaker monomer includes vibration component (200), stationary components (100) and amplitude detection sensor (300), the amplitude detection sensor (300) includes piezoelectric membrane (310), the first end of the piezoelectric membrane (310) is connected with the vibration component (200), second end of the piezoelectric membrane (300) is connected with the stationary components (100), the piezoelectric membrane (310) between the first end and second end into a bent shape, the amplitude detection sensor (300) is arranged to the electric signal that the deformation based on the piezoelectric membrane (310) produces the amplitude size for representing the vibration component (200).
Description
Technical field
The present invention relates to electro-acoustic product technical field, more particularly it relates to a kind of loudspeaker monomer and with this
Plant the electronic equipment of loudspeaker monomer.
Background technology
Loudspeaker monomer is the basic structure of loudspeaker.Loudspeaker monomer includes stationary components and vibration component, static group
Part further comprises shell, protecgulum and magnetic circuit component, and magnetic circuit component and vibration component are arranged on shell, and vibration component includes shaking
Film and voice coil loudspeaker voice coil, voice coil loudspeaker voice coil are fixedly connected with vibrating diaphragm, and voice coil loudspeaker voice coil is arranged in the magnetic gap of magnetic circuit component formation, so that voice coil loudspeaker voice coil is connecing
It when receiving AC signal, can be vibrated in the presence of magnetic circuit component, and then drive diaphragm oscillations and instigate surrounding air sounding.
When loudspeaker monomer works, when power increase suddenly cause vibration component amplitude it is excessive when, have vibration group
The stationary components of part and loudspeaker monomer occur to wipe the risk touched, for example, the wiping for occurring voice coil loudspeaker voice coil and magnetic circuit component is touched, vibrating diaphragm with it is outer
The wiping of shell is touched etc., and appearances that phenomenon is touched in these wipings can all cause the raising of distortion, the sense of hearing and tonequality of influence loudspeaker, simultaneously
It is difficult to ensure that the reliability yield of product；In addition, the unexpected increasing of power, can also influence the service life of loudspeaker, Jin Erzhi
Loudspeaker muchly can not be persistently ensured the tonequality and sense of hearing of high-quality, therefore, be highly desirable to shake to loudspeaker monomer
The amplitude of dynamic component is monitored.
The content of the invention
It is an object of the present invention to provide a kind of new technical scheme of loudspeaker monomer, so that the loudspeaker monomer energy
Enough output represents the electric signal of the amplitude size of vibration component.
According to the first aspect of the invention there is provided a kind of loudspeaker monomer, it includes vibration component, stationary components and shaken
Width detection sensor, the amplitude detection sensor includes piezoelectric membrane, the first end of the piezoelectric membrane and the vibration group
Part is connected, and the second end of the piezoelectric membrane is connected with the stationary components, the piezoelectric membrane the first end with it is described
Between second end into a bent shape, the amplitude detection sensor is arranged to the deformation generation expression institute based on the piezoelectric membrane
State the electric signal of the amplitude size of vibration component.
Optionally, the amplitude detection sensor also includes two metal level electrodes, and the piezoelectric membrane is connected to institute
State between two metal level electrodes, the amplitude detection sensor is arranged to described by the output of described two metal level electrodes
Electric signal.
Optionally, the vibration component includes vibrating diaphragm, and the first end of the piezoelectric membrane is connected with the vibrating diaphragm；Or
Person, the vibration component includes vibrating diaphragm and the reinforcement part being fixedly connected with the vibrating diaphragm, the first end of the piezoelectric membrane and institute
State reinforcement part connection.
Optionally, the stationary components include magnetic circuit component, the second end of the piezoelectric membrane and the magnetic circuit component
Connection.
Optionally, the stationary components include protecgulum and shell, and the protecgulum has acoustic aperture；The vibration component bag
Vibrating diaphragm is included, the vibrating diaphragm is folded between the protecgulum and the shell；Second end of the piezoelectric membrane connects with the protecgulum
Connect.
Optionally, the vibration component includes vibrating diaphragm and the voice coil loudspeaker voice coil being connected with the vibrating diaphragm, and the stationary components include
Magnetic circuit component, the voice coil loudspeaker voice coil is placed in the magnetic gap of the magnetic circuit component；The first end of the piezoelectric membrane connects with the voice coil loudspeaker voice coil
Connect, the second end of the piezoelectric membrane is connected with the magnetic circuit component.
Optionally, the loudspeaker monomer includes amplitude detection sensor described at least two.
Optionally, the bending is spiral-shaped or S-shaped shape.
Optionally, the piezoelectric membrane is polyvinylidene difluoride film, polyvinylidene fluoride copolymer film or gathers inclined fluorine
Ethene laminated film.
According to the second aspect of the invention, a kind of electronic equipment is additionally provided, it includes institute according to a first aspect of the present invention
The loudspeaker monomer stated.
The beneficial effect of the present invention is that loudspeaker monomer of the invention has amplitude detection sensor, the amplitude
Detection sensor, which has, can produce the piezoelectric membrane of piezo-electric effect, and the piezoelectric membrane is connected to static group of loudspeaker monomer
Between part and vibration component, so, vibration component will apply compression or stretching action in vibration to piezoelectric membrane, and then cause
Piezoelectric membrane deforms, therefore, amplitude detection sensor can the deformation based on piezoelectric membrane, or be referred to as be based on piezoelectricity
Effect, produces the electric signal for representing amplitude size, realizes the purpose that amplitude variations are converted into change in electric.Based on this kind
The loudspeaker monomer of structure, can adjust the input signal of vibration component, to avoid the vibration of loudspeaker monomer according to electric signal
Component occurs wiping with stationary components and touched, so that loudspeaker monomer muchly can persistently ensure the tonequality of high-quality and listen
Sense.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification 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 a kind of surface structure schematic diagram of embodiment according to loudspeaker monomer of the present invention；
Fig. 2 is the schematic cross-section of loudspeaker monomer shown in Fig. 1；
Fig. 3 is the decomposition texture schematic diagram of loudspeaker monomer shown in Fig. 1 and Fig. 2；
Fig. 4 is the schematic cross-section of another embodiment according to loudspeaker monomer of the present invention；
Fig. 5 is the schematic cross-section of the third embodiment according to loudspeaker monomer of the present invention；
Fig. 6 is the schematic cross-section of the 4th kind of embodiment according to loudspeaker monomer of the present invention；
Fig. 7 is a kind of structural representation of embodiment of amplitude detection sensor.
Description of reference numerals：
100- stationary components；110- protecgulums；
120- shells；130- magnetic circuit components；
131- central magnets；132- conductive magnetic yokes；
133- centers magnetic conductive board；200- vibration components；
210- vibrating diaphragms；220- reinforcement parts；
230- voice coil loudspeaker voice coils；300- amplitude detection sensors；
310- piezoelectric membranes；320- metal level electrodes.
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 had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments does not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or used.
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 a 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.
Fig. 1 to Fig. 3 is a kind of structural representation of embodiment according to loudspeaker monomer of the present invention.
According to Fig. 1 to Fig. 3, in this embodiment, loudspeaker monomer include stationary components 100, vibration component 200,
And amplitude detection sensor 300.
Amplitude detection sensor 300 includes piezoelectric membrane, and the first end of piezoelectric membrane is connected with vibration component 200, piezoelectricity
Second end of film is connected with stationary components 100.Amplitude detection sensor 300 is arranged to the deformation based on piezoelectric membrane and produced
Represent the electric signal of the amplitude size of vibration component 200.
The piezoelectric membrane can be used with Kynoar (Polyvinylidene Fluoride, PVDF) material
Film, this kind of film for example can be that polyvinylidene difluoride film, polyvinylidene fluoride copolymer film or Kynoar are compound
Film.
Further, poly-vinylidene-fluoride composite film for example can be the composite membrane of Kynoar and lead zirconate titanate (PZT),
Normally referred to as PVDF/PZT composite membranes, the composite membrane of Kynoar and lead magnesio-niobate (PMT), normally referred to as PVDF/PMT
Composite membrane, the normally referred to as composite membrane of Kynoar and barium titanate (BT), PVDF/BT composite membranes.
Because Kynoar has the characteristics of pliability is good, therefore, had using the film with polyvinylidene fluoride material
Beneficial to the shape needed for piezoelectric membrane is shaped to easily.
It is therefore, favourable using the film with polyvinylidene fluoride material because Kynoar has low density feature
In the quality of control vibration component.
It is therefore, favourable using the film with polyvinylidene fluoride material because Kynoar has the characteristics of impedance is low
In the sensitivity for improving loudspeaker monomer.
The piezoelectric membrane between the first end of itself and the second end can with bendings such as helically shaped or S-shaped shapes,
Can carry out moderate finite deformation on the direction of vibration of vibration component, the moderate finite deformation causes setting for amplitude detection sensor 300
Put and do not interfere with vibration component and reach default peak swing.Amplitude detection sensor 300 can also include two electrical connection sections
(not shown).This two electrical connection sections are arranged to be used for carrying out between amplitude detection sensor 300 and external circuit
Electrical connection, to export the electric signal of the generation of amplitude detection sensor 300.
This two electrical connection sections can be welded on the corresponding pad of loudspeaker monomer.
In the embodiment shown in fig. 7, the amplitude detection sensor 300 can also include two in addition to piezoelectric membrane 310
Individual metal level electrode 320, the piezoelectric membrane 310 is connected between two metal level electrodes 320.This kind of structure is conducive to piezoelectricity thin
The abundant polarization and the extraction of electric signal of film, further improve the intensity of electric signal.
Two metal level electrodes 320 means such as can use vacuum evaporation, vacuum magnetic-control sputtering, silk-screen printing are direct
On the surface for being coated in piezoelectric membrane 310.
For the amplitude detection sensor 300 using structure shown in Fig. 7, two above electrical connection section can each with one
Metal level electrode 300 is connected.
Two above electrical connection section can be integrally formed with the metal level electrode 300 of corresponding connection.
In a further embodiment, the amplitude detection sensor 300 is in addition to piezoelectric membrane 310, can also include via
The piezoelectric membrane connecting portion that piezoelectric membrane extends, and two above electrical connection section can then be connected to piezoelectric membrane connection
On two relative surfaces in portion.
The piezoelectric membrane connecting portion can be integrally formed with piezoelectric membrane.
Two electrical connection sections means such as can use vacuum evaporation, vacuum magnetic-control sputtering, silk-screen printing are directly coated
On the corresponding surface of piezoelectric membrane connecting portion.
In the present embodiment, stationary components 100 include protecgulum 110, shell 120 and magnetic circuit component 130.
In the present embodiment, vibration component 200 includes vibrating diaphragm 210, the reinforcement part 220 being fixedly connected on vibrating diaphragm 210 (again
It is referred to as DOME) and the voice coil loudspeaker voice coil 230 that is fixedly connected with vibrating diaphragm 210.
The sandwiched of vibrating diaphragm 210 is connected between protecgulum 110 and shell 120, the sky that will be surrounded by protecgulum 110 and shell 120
Between be divided into the preceding operatic tunes and the rear operatic tunes positioned at the side of shell 120 positioned at the side of protecgulum 110.
Magnetic circuit component 130 and voice coil loudspeaker voice coil 230 are respectively positioned in the rear operatic tunes, and voice coil loudspeaker voice coil 230 is placed in the magnetic gap of magnetic circuit component 130
In.
Reinforcement part 220 is fixedly connected on the surface of vibrating diaphragm 210 in preceding operatic tunes side.
The acoustic aperture that goes out of loudspeaker monomer is communicated with the preceding operatic tunes, and this goes out acoustic aperture and is arranged on protecgulum 110.
In the present embodiment, the first end of the piezoelectric membrane of amplitude detection sensor 300 be connected with reinforcement part 220, second
End is connected with protecgulum 110.
In the present embodiment, when vibration component 200 vibrates, different degrees of will be applied to piezoelectric membrane along direction of vibration
Compression or stretching action, the effect will make it that different degrees of deformation occurs for piezoelectric membrane, and the deformation is with shaking
Move the increase of the amplitude of component 200 and increase, so that amplitude detection sensor 300 can produce the telecommunications for representing amplitude size
Number.
Based on the loudspeaker monomer of this kind of structure, when by the externally connected circuit of amplitude detection sensor 300, just may be used
Pass through the amplitude size of external circuit monitoring vibration component 200, it is possible to which further regulation is shaken when amplitude exceedes given threshold
The input signal of dynamic component 200, to avoid the various pieces (including voice coil loudspeaker voice coil, vibrating diaphragm etc.) and loudspeaker monomer of vibration component 200
Stationary components 100 wipe touch.
In vibration component 200 does not include the embodiment of reinforcement part 220, the first end of piezoelectric membrane can also be with vibrating diaphragm
210 connections.
Fig. 4 is the schematic cross-section of another embodiment according to loudspeaker monomer of the present invention.
According to Fig. 4, the difference of loudspeaker monomer and embodiment illustrated in fig. 2 in the embodiment includes：Loudspeaker list
Body includes two amplitude detection sensors 300.
Two amplitude detection sensors 300 are connected to the diverse location of vibration component 200, to detect vibration component in difference
Amplitude size at position.
This kind of structure is possible to provide favourable support to study the polarization situation of vibration component 200.
In a further embodiment, loudspeaker monomer also includes more than two amplitude detection sensor 300.
Two pads of each correspondence of amplitude detection sensor 300, the pad can be with Direct Electroplating in the outer of loudspeaker monomer
On shell 120, it can also be arranged in the case where loudspeaker monomer has FPCB (flexible PCB) on FPCB.
Fig. 5 is the schematic cross-section of the third embodiment according to loudspeaker monomer of the present invention.
According to Fig. 3, the difference of loudspeaker monomer and embodiment illustrated in fig. 4 in the embodiment includes：Amplitude detection
The first end of the piezoelectric membrane of sensor 300 is connected with vibrating diaphragm 210, the second end is connected with magnetic circuit component 130.
Referring to shown in Fig. 2 and Fig. 5, magnetic circuit component 130 includes conductive magnetic yoke 132, centring magnet 131 and center magnetic conductive board 133.
Conductive magnetic yoke 132 is bowl-shape conductive magnetic yoke, is rolled over flat part and via the edge of flat part to the place lateral bending of voice coil loudspeaker voice coil 230
The side of sidewall portion extended.Centring magnet 131 is for example fixedly connected on the table towards voice coil loudspeaker voice coil 230 of flat part by the means of bonding
On face, to form magnetic gap between side of sidewall portion and centring magnet 131.
In a further embodiment, conductive magnetic yoke 132 can also be tabular.In this embodiment, magnetic circuit component can lead to
Cross in conductive magnetic yoke 132 around the setting side magnet formation magnetic gap of centring magnet 131.
The centrally disposed magnet 131 of center magnetic conductive board 133 towards on the surface of vibrating diaphragm 210, to play the amendment magnetic line of force
Effect.
In this embodiment, the second end of piezoelectric membrane can be connected with center magnetic conductive board 133.
In the embodiment for being not provided with center magnetic conductive board 133, the second end of piezoelectric membrane can also connect with centring magnet 131
Connect.
It is connected in piezoelectric membrane in further embodiment of the vibrating diaphragm 210 with magnetic circuit component 130, loudspeaker monomer can also
Including an amplitude detection sensor 300, or including more than two amplitude detection sensor 300.
Fig. 6 is the schematic cross-section of the 4th kind of embodiment according to loudspeaker monomer of the present invention.
According to Fig. 6, the difference of loudspeaker monomer and embodiment illustrated in fig. 4 in the embodiment includes：Amplitude detection
The first end of the piezoelectric membrane of sensor 300 is connected with voice coil loudspeaker voice coil 230, the second end is connected with the conductive magnetic yoke 132 of magnetic circuit component 130.
This explanation, amplitude detection sensor 300 is located in magnetic gap.
In the embodiment shown in fig. 6, loudspeaker monomer can include two amplitude detection sensors 300.
In the embodiment shown in fig. 6, loudspeaker monomer can also include more than two amplitude detection sensor 300.
In the embodiment shown in fig. 6, loudspeaker monomer can also include an amplitude detection sensor 300.
Further, this amplitude detection sensor 300 can be around the formation helical form of center magnet 131.
In the further embodiment of the present invention, loudspeaker monomer can set two or more (including two) amplitude detection
Sensor 300, moreover, at least two amplitude detections sensor 300 therein can use different attachment structures.
The various embodiments described above primary focus describes the difference with other embodiment, but those skilled in the art should be clear
Chu, the various embodiments described above can be used alone or be combined with each other as needed.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel are it should be understood that example above is merely to illustrate, 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)
1. a kind of loudspeaker monomer, it is characterised in that including vibration component (200), stationary components (100) and amplitude detection sensing
Device (300), the amplitude detection sensor (300) include piezoelectric membrane (310), the first end of the piezoelectric membrane (310) with
Vibration component (200) connection, the second end of the piezoelectric membrane (300) is connected with the stationary components (100), the pressure
Between the first end and second end into a bent shape, the amplitude detection sensor (300) is set conductive film (310)
To produce the electric signal for the amplitude size for representing the vibration component (200) based on the deformation of the piezoelectric membrane (310).
2. loudspeaker monomer according to claim 1, it is characterised in that the amplitude detection sensor (300) also includes
Two metal level electrodes (320), the piezoelectric membrane (310) is connected between described two metal level electrodes (320), described to shake
Width detection sensor (300) is arranged to export the electric signal by described two metal level electrodes (320).
3. loudspeaker monomer according to claim 1, it is characterised in that the vibration component (200) includes vibrating diaphragm
(210), the first end of the piezoelectric membrane (310) is connected with the vibrating diaphragm (210)；Or, the vibration component (200) includes
Vibrating diaphragm (210) and the reinforcement part (220) being fixedly connected with the vibrating diaphragm (210), the first end of the piezoelectric membrane (310) with
Reinforcement part (220) connection.
4. loudspeaker monomer according to claim 1, it is characterised in that the stationary components (100) include magnetic circuit component
(130), the second end of the piezoelectric membrane (310) is connected with the magnetic circuit component (130).
5. loudspeaker monomer according to claim 1, it is characterised in that the stationary components (100) include protecgulum (110)
With shell (120), the protecgulum (110) has acoustic aperture；The vibration component (200) includes vibrating diaphragm (210), the vibrating diaphragm
(210) it is folded between the protecgulum (110) and the shell (120)；Second end of the piezoelectric membrane (310) with it is described before
Cover (110) connection.
6. loudspeaker monomer according to claim 1, it is characterised in that the vibration component (200) includes vibrating diaphragm
(210) voice coil loudspeaker voice coil (230) and with the vibrating diaphragm (210) being connected, the stationary components (100) include magnetic circuit component (130), institute
Voice coil loudspeaker voice coil (230) is stated to be placed in the magnetic gap of the magnetic circuit component (130)；The first end of the piezoelectric membrane (310) and the sound
(230) connection is enclosed, the second end of the piezoelectric membrane (310) is connected with the magnetic circuit component (130).
7. loudspeaker monomer according to claim 1, it is characterised in that the loudspeaker monomer is included described at least two
Amplitude detection sensor (300).
8. loudspeaker monomer according to claim 1, it is characterised in that the bending is spiral-shaped or S-shaped shape.
9. loudspeaker monomer according to any one of claim 1 to 8, it is characterised in that the piezoelectric membrane (310) is
Polyvinylidene difluoride film, polyvinylidene fluoride copolymer film or polyvinylidene fluoride composite film.
10. a kind of electronic equipment, it is characterised in that including the loudspeaker monomer any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374472.7A CN107124683B (en) | 2017-05-24 | 2017-05-24 | Speaker monomer and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374472.7A CN107124683B (en) | 2017-05-24 | 2017-05-24 | Speaker monomer and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107124683A true CN107124683A (en) | 2017-09-01 |
| CN107124683B CN107124683B (en) | 2020-07-24 |
Family
ID=59729503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710374472.7A Active CN107124683B (en) | 2017-05-24 | 2017-05-24 | Speaker monomer and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107124683B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111770418A (en) * | 2020-06-03 | 2020-10-13 | 上海创功通讯技术有限公司 | Loudspeaker and sound generating mechanism |
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| CN204948356U (en) * | 2015-09-29 | 2016-01-06 | 歌尔声学股份有限公司 | For the double effect device that the structure and acoustic-electric that detect loudspeaker vibration displacement turn mutually |
| CN205179353U (en) * | 2015-12-08 | 2016-04-20 | 歌尔声学股份有限公司 | Miniature sounder |
| CN206136277U (en) * | 2016-09-09 | 2017-04-26 | 歌尔股份有限公司 | Speaker monomer, speaker module and sound generating mechanism |
| CN206136274U (en) * | 2016-09-09 | 2017-04-26 | 歌尔股份有限公司 | Speaker monomer, speaker module and sound generating mechanism |
| CN206908831U (en) * | 2017-05-24 | 2018-01-19 | 歌尔股份有限公司 | Loudspeaker monomer and electronic equipment |
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|---|---|---|---|---|
| CN104780489A (en) * | 2015-03-31 | 2015-07-15 | 歌尔声学股份有限公司 | Structure for detecting vibration displacement of loudspeaker and double-effect device capable of realizing acoustic-electric inter-conversion |
| CN204948356U (en) * | 2015-09-29 | 2016-01-06 | 歌尔声学股份有限公司 | For the double effect device that the structure and acoustic-electric that detect loudspeaker vibration displacement turn mutually |
| CN205179353U (en) * | 2015-12-08 | 2016-04-20 | 歌尔声学股份有限公司 | Miniature sounder |
| CN206136277U (en) * | 2016-09-09 | 2017-04-26 | 歌尔股份有限公司 | Speaker monomer, speaker module and sound generating mechanism |
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| CN111770418A (en) * | 2020-06-03 | 2020-10-13 | 上海创功通讯技术有限公司 | Loudspeaker and sound generating mechanism |
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| Publication number | Publication date |
|---|---|
| CN107124683B (en) | 2020-07-24 |
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