CN107277700A - A kind of sound-producing device, module and electronic equipment - Google Patents
A kind of sound-producing device, module and electronic equipment Download PDFInfo
- Publication number
- CN107277700A CN107277700A CN201710556663.5A CN201710556663A CN107277700A CN 107277700 A CN107277700 A CN 107277700A CN 201710556663 A CN201710556663 A CN 201710556663A CN 107277700 A CN107277700 A CN 107277700A
- Authority
- CN
- China
- Prior art keywords
- sound
- polypropylene film
- producing device
- metal electrode
- electrode layer
- 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
- 239000004743 Polypropylene Substances 0.000 claims abstract description 75
- -1 polypropylene Polymers 0.000 claims abstract description 75
- 229920001155 polypropylene Polymers 0.000 claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 claims abstract description 43
- 239000002184 metal Substances 0.000 claims abstract description 43
- 230000001413 cellular effect Effects 0.000 claims abstract description 7
- 230000010287 polarization Effects 0.000 claims abstract description 6
- 230000005684 electric field Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 40
- 238000010276 construction Methods 0.000 claims description 28
- 150000001336 alkenes Chemical class 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 5
- 239000002356 single layer Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 238000007738 vacuum evaporation Methods 0.000 claims description 3
- 239000010408 film Substances 0.000 description 63
- 238000000034 method Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002365 multiple layer Substances 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
-
- 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
- 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
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/025—Diaphragms comprising polymeric materials
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a kind of sound-producing device, module and electronic equipment.The sound-producing device includes：Polypropylene film, the inside of the polypropylene film has the high intensity hole of numerous flat, described hole is in cellular arrangement inside the polypropylene film, and the polypropylene film is configured as carrying out charging polarization under strong electric field environment forming permanent positive and negative charge in described hole；The metal electrode layer in the polypropylene film both side surface is respectively arranged at, the polypropylene film is configured as can be of reciprocating vibration in the thickness direction thereof when the metal electrode layer connects the voltage signal of change.The invention solves the problems that a problem be that the miniature sound-producing device of existing moving-coil type stills need magnetic circuit system as driving source so as to causing volume larger.
Description
Technical field
Electroacoustic techniques field of the present invention, more particularly it relates to a kind of sound-producing device, module and electronic equipment.
Background technology
The miniature sound-producing device of moving-coil type is had been widely used in consumer electronics product.For example, smart mobile phone or flat
Loudspeaker or receiver in the electronic equipments such as plate computer etc..
The miniature sound-producing device of moving-coil type includes magnetic circuit system and vibrational system, and vibrational system includes the voice coil loudspeaker voice coil being fixed together
And vibrating diaphragm.Magnetic circuit system can produce magnetic gap as drive force source.Be connected with the voice coil loudspeaker voice coil of signal by Lorentz force action band
Dynamic vibrating diaphragm vibrates together, so that radiative acoustic wave.
The technical maturity of the miniature sound-producing device of moving-coil type, results in relatively warm sound.But, it needs magnetic circuit system to make
For driving source, so there is still a need for occupying certain volume.
The thickness more and more thinner of the electronic equipments such as now smart mobile phone, keeps for the space of loudspeaker or receiver also to get over
Come smaller.The physical vibration space of product is so necessarily caused further to reduce, so that the finally miniature sounding dress of influence moving-coil type
Put the maximum voice output in low-frequency range.
Therefore, it is necessary to be improved to existing miniature sound-producing device.
The content of the invention
It is an object of the present invention to provide the new solution of a kind of sound-producing device, module and electronic equipment.
There is provided a kind of sound-producing device according to the first aspect of the invention.The sound-producing device includes：Polypropylene film, institute
Stating the inside of polypropylene film has the high intensity hole of numerous flat, and described hole is in honeybee inside the polypropylene film
Nest shape is arranged, and the polypropylene film is configured as carrying out charging polarization under strong electric field environment being formed forever in described hole
Long positive and negative charge；Be respectively arranged at the metal electrode layer in the polypropylene film both side surface, the polypropylene film by with
Being set to can be of reciprocating vibration in the thickness direction thereof when the metal electrode layer connects the voltage signal of change.
Alternatively, the metal electrode layer is gold, corronil, aluminium or silver electrode.
Alternatively, the metal electrode layer magnetron sputtering in or vacuum evaporation in or silk-screen printing in the polypropylene
The surface of film both sides.
Alternatively, the wire for input signal is led on the metal electrode layer.
Alternatively, it is electrically connected with flexible PCB on the metal electrode layer.
Alternatively, the polypropylene film between two metal electrode layers is single layer structure.
Alternatively, the sandwich construction that the polypropylene film between two metal electrode layers is laminated for bending.
There is provided a kind of sound-producing device module according to the second aspect of the invention.The sound-producing device module includes：Above-mentioned hair
Acoustic device；Supporting construction, the sound-producing device component is fixed in the supporting construction, and the supporting construction is located at described poly- third
The week side of boss of alkene film.
There is provided a kind of electronic equipment according to the third aspect of the invention we.The electronic equipment includes：Above-mentioned sound-producing device mould
Group；Housing, the housing is assembled together with the supporting construction in the sound-producing device module.
Alternatively, the operatic tunes before being formed between the polypropylene film and the housing, sets on the wall of the housing
Have and the preceding operatic tunes is connected goes out acoustic aperture.
It was found by the inventors of the present invention that the existing miniature sound-producing device of moving-coil type needs magnetic circuit system as driving source, still need to
Occupy certain volume.The thickness more and more thinner of the electronic equipments such as the smart mobile phone of now, keeps for loudspeaker or called
The space of device is also less and less.The physical vibration space of product is so necessarily caused further to reduce, so as to finally influence moving-coil
Maximum voice output of the type that the declines sound-producing device in low-frequency range.Therefore, the present invention to be realized technical assignment or to be solved
Technical problem be it is that those skilled in the art never expect or it is not expected that, therefore the present invention is a kind of new technical side
Case.
In sound-producing device, module and the electronic equipment that the present invention is provided, polypropylene film is electrically charged after polarization, at it
Permanent positive and negative charge is formed with inner void.The inside of polypropylene film has the high intensity hole of numerous flat.It is many
Multiple hole is in cellular arrangement inside polypropylene film.When metal electrode layer connects the voltage signal of change, polypropylene is thin
Film can be of reciprocating vibration in the thickness direction thereof.
Numerous flat holes are in cellular arrangement, ensure that polypropylene film is bearing microvibration, such as sound letter
Number when, have sufficiently high sensitivity；Also it ensure that and keep elastic working range in the case where bearing larger pressure condition.
Sound-producing device component does not need magnetic circuit system as driving source, and itself can be relied on when connecting the voltage signal of change
Piezoelectric property produce vibration.Structure simplifies, frivolous.
The sound-producing device module includes the sound-producing device component and supporting construction.The sound-producing device module can be set with electronics
The directly assembling of standby housing parts is used, and can make full use of the free space in electronic equipment, it is ensured that sound-producing device component exists
The maximum voice output of low-frequency range.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
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 the electron microscope of the polypropylene film provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the sound-producing device provided in an embodiment of the present invention；
Fig. 3 is the structural representation of the sound-producing device module provided in an embodiment of the present invention；
Fig. 4 is the structural representation of the electronic equipment provided in an embodiment of the present invention；
Fig. 5 is the partial sectional view of the electronic equipment provided in an embodiment of the present invention.
Wherein, 1：Sound-producing device；10：Polypropylene film:100：Hole；11：Metal electrode layer；2：Electrical connector；3：Branch
Support structure；4：Housing；40：Antetheca；41：Side wall；5：Go out acoustic aperture；6：The preceding operatic tunes.
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.
The invention provides a kind of sound-producing device component, with reference to Fig. 1, Fig. 2, the sound-producing device 1 includes polypropylene film 10
And metal electrode layer 11.The inside of the polypropylene film 10 has numerous holes 100.Hole in the polypropylene film 10
Hole 100 has high intensity in the hole 100 in flat, and the polypropylene film 10.Described hole 100 is described poly- third
The inside of alkene film 10 is in cellular arrangement.
Fig. 1 shows the electron microscope of the polypropylene film 10 in an embodiment of the present invention.
Under original state, the hole 100 in the polypropylene film 10 is more fluffy, between numerous fluffy holes 100
Can mutually it extrude so that the polypropylene film 10 is deformed.The intensity of described hole 100 is high, is not likely to produce permanent
Deformation and fracture.
Under strong electric field environment, charging polarization is carried out to the polypropylene film 10, to be formed forever in described hole 100
Long positive and negative charge.The metal electrode layer 11 is respectively arranged in the both side surface of polypropylene film 10, with described poly-
The both sides of Polypropylene film 10 apply the voltage of change.
Positive and negative charge is stored in described hole 100, when the metal electrode layer 11 in the both sides of polypropylene film 10 is applied
Plus change voltage when, the polypropylene film 10 being polarized can produce in a thickness direction it is corresponding change (in a thickness direction
Vibration), the change produces corresponding sound pressure signal in atmosphere so as to act on, and realizes the purpose of sounding.
In the present invention, the inside of the polypropylene film 10 has the hole 100 of numerous flat and high intensity.Numerous holes
Hole 100 is in cellular arrangement inside the polypropylene film 10, more fluffy.There is positive and negative charge in described hole 100.Class
Like sponge water squeezing, when the metal electrode layer 11 connects the voltage signal of change, the polypropylene film 10 can be along its thickness
Direction is of reciprocating vibration.
Numerous holes 100 are in cellular arrangement inside the polypropylene film 10, more fluffy, ensure that polypropylene
Film 10 has sufficiently high sensitivity when bearing microvibration, such as voice signal；Also it ensure that and bearing larger pressure
In the case of keep elastic working range.
The sound-producing device 1 of the present invention is using polypropylene film 10 as piezoelectric membrane, and polypropylene film 10 is a kind of new
Piezoelectric, for PVDF piezoelectric membranes of the prior art, its piezoelectric charge coefficients will be higher by more than 10 times, its
Size, size and shape can arbitrarily be cut out and unrestricted, and its internal structure will not be destroyed because of cutting out；Separately
Outside, polypropylene film 10 also has the characteristics of lightweight is ultra-thin, can be most thin to reach 0.07 ㎜ thickness, institute with bending fold
With even multilayer laminated, thickness of the thickness also much smaller than vibrating diaphragm of the prior art；In addition, polypropylene film 10 can also
Enough bear it is long-term, repeatedly, the Impact Load of high intensity is without failing, it is ensured that the reliability of product, increase the service life.No
Not carry be a bit, although polypropylene film 10 has many advantages, such as above-mentioned, but its cost is very cheap, can reduce application
The manufacturing cost of the product of this material.
The piezoelectric film type sound-producing device 1 does not need magnetic circuit system as driving source, when connecting the voltage signal of change
Vibration can be produced by the piezoelectric property of itself.Structure simplifies, frivolous.
The both sides that the metal electrode layer 11 is used in the polypropylene film 10 apply the voltage of change.The metal electricity
The specific material of pole layer 11 can have a variety of.For example, the metal electrode layer 11 be gold, corronil, aluminium, silver electrode or its
His metal electrode layer.
The mode that the metal electrode layer 11 is arranged on the surface of polypropylene film 10 can have a variety of.
For example, the metal electrode layer 11 can be with magnetron sputtering in the surface of the both sides of polypropylene film 10.
In another example, the metal electrode layer 11 can be with vacuum evaporation in the surface of the both sides of polypropylene film 10.
For another example the metal electrode layer 11 can be with silk-screen printing in the surface of the both sides of polypropylene film 10.
With reference to Fig. 3, the both sides that the metal electrode layer 11 is used in the polypropylene film 10 apply the voltage of change, institute
Stating metal electrode layer 11 need to be electrically connected with external circuit.The metal electrode layer 11 can pass through electrical connector 2 and outside
Circuit is electrically connected.
In one example, the wire for inputting sound electric signal is led on the metal electrode layer 11.It is described to lead
The quantity of line is two.The metal electrode layer 11 is electrically connected by the wire with external circuit respectively.
In another example, flexible PCB is electrically connected with the metal electrode layer 11.The metal electrode layer 11
Electrically connected respectively by the flexible PCB with external circuit.
The polypropylene film 10 is located between two metal electrode layers 11.The specific knot of the polypropylene film 10
Structure can have a variety of.
In one example, the polypropylene film 10 between two metal levels is single layer structure.Poly- the third of single layer structure
Alkene film 10 can meet and use needs.
In another example, the sandwich construction that the polypropylene film 10 between two metal levels is laminated for bending.It is single
The sensitivity of the polypropylene film 10 of Rotating fields may can improve sound-producing device than relatively low using the sandwich construction of multiple-layer stacked
The sensitivity of component 1.
In specific assembling process, a polypropylene film 10 can be carried out once or multiple bending, it is described afterwards poly-
Polypropylene film 10 is in the multilayer being laminated.The metal electrode layer 11 is set in the both side surface of multi-layer polypropylene film 10 again.
Even the polypropylene film 10 of multiple-layer stacked, thickness of its thickness still much lower than conventional vibrating diaphragm.By its structure
Into sound-producing device 1 structure still simplify, it is frivolous.
Present invention also offers a kind of sound-producing device module, with reference to Fig. 3, the sound-producing device module includes what the present invention was provided
Sound-producing device 1 and supporting construction 3.The sound-producing device 1 is fixed in the supporting construction 3.The supporting construction 3 is located at institute
State the week side of boss of polypropylene film 10.Fixed or Nian Jie for example, the sound-producing device component 1 can be heated with the supporting construction 3
It is fixed.
The concrete structure of the supporting construction 3 can have a variety of.For example, the supporting construction 3 can have it is square or
The profile of rectangle or other shapes, two offsides that can be respectively with the sound-producing device component are fixed together.For another example branch
Support structure 3 can be hard shell or flake structure etc..
In one example, with reference to Fig. 3, the supporting construction 3 can be the loop configuration of middle hollow out.The supporting construction
3 are surrounded on the surrounding of the sound-producing device 1.The sound-producing device 1 is located at the middle hollow out position of the supporting construction 3, and
It is fixed together with the supporting construction 3.
It is appreciated that the supporting construction 3 can also ensure that the polypropylene film 10 back and forth shakes along along its thickness direction
It is dynamic, prevent polarization phenomena.
The sound-producing device 1 can be assemblied in corresponding electronic equipment by the supporting construction 3.The sound-producing device module
It can directly assemble and use with the housing parts of electronic equipment for consumption, the free space in electronic equipment can be made full use of,
Ensure maximum voice output of the sound-producing device component 1 in low-frequency range.
Present invention also offers a kind of electronic equipment, the electronic equipment can be, but not limited to, smart mobile phone, intelligence
Wrist-watch, game machine, wear display device, tablet personal computer etc..With reference to Fig. 4, the electronic equipment includes being that the sounding that invention is provided is filled
Put module and housing 4.The housing 4 is assembled together with the supporting construction 3 in the sound-producing device module.For example, described
Housing 4 can be the outer shell of smart mobile phone.
The side of the polypropylene film 10 needs to be provided with passage of speaking.The concrete structure of the passage of speaking, setting
Mode can have a variety of.Preferably, with reference to Fig. 5, the operatic tunes 6 before being formed between the polypropylene film 10 and the housing 4.
The wall of the housing 4 is provided with and the preceding operatic tunes 6 is connected goes out acoustic aperture 5.
Specifically, with reference to Fig. 5, the housing 4 can be in or be in approximately rectangular parallelepiped structure.The housing 4 includes antetheca
40 and the side wall 41 positioned at the side of antetheca 40.The preceding operatic tunes 6 be formed at the polypropylene film 10 and antetheca 40 it
Between.It is described go out acoustic aperture 5 be to be arranged at through hole on the side wall 41.
In addition, the concrete structure of the supporting construction 3 can according to the casting of electronic device 4 structure, go out acoustic aperture 5
Specific design is carried out in position, to form the preceding operatic tunes 6.
In addition, after the other side of the polypropylene film 10 is formed with the operatic tunes.The supporting construction 3 can be set
For ease of forming the rear operatic tunes.
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 sound-producing device, it is characterised in that including：
Polypropylene film (10), the inside of the polypropylene film (10) has the high intensity hole (100) of numerous flat, institute
It is in cellular arrangement inside the polypropylene film (10) to state hole (100), and the polypropylene film (10) is configured as
Charging polarization is carried out under strong electric field environment to form permanent positive and negative charge in described hole (100)；
It is respectively arranged at the metal electrode layer (11) in the polypropylene film (10) both side surface, the polypropylene film (10)
Being configured as can be of reciprocating vibration in the thickness direction thereof when the metal electrode layer (11) connects the voltage signal of change.
2. sound-producing device according to claim 1, it is characterised in that the metal electrode layer (11) be gold, corronil,
Aluminium or silver electrode.
3. sound-producing device according to claim 1 or 2, it is characterised in that metal electrode layer (11) magnetron sputtering in
Or vacuum evaporation in or silk-screen printing in the both side surface of the polypropylene film (10).
4. sound-producing device according to claim 1, it is characterised in that being led on the metal electrode layer (11) is used for
The wire of input signal.
5. sound-producing device according to claim 1, it is characterised in that be electrically connected with the metal electrode layer (11) soft
Property circuit board.
6. sound-producing device according to claim 1, it is characterised in that poly- third between two metal electrode layers (11)
Alkene film (10) is single layer structure.
7. sound-producing device according to claim 1, it is characterised in that poly- third between two metal electrode layers (11)
The sandwich construction that alkene film (10) is laminated for bending.
8. a kind of sound-producing device module, it is characterised in that including：
Sound-producing device according to any one of claim 1-7；
Supporting construction (3), the sound-producing device is fixed in the supporting construction (3), and the supporting construction (3) is located at described poly-
The week side of boss of Polypropylene film (10).
9. a kind of electronic equipment, it is characterised in that including：
Sound-producing device module according to claim 8；
Housing (4), the housing (4) is assembled together with the supporting construction (3) in the sound-producing device module.
10. electronic equipment according to claim 1, it is characterised in that in the polypropylene film (10) and the housing
(4) the preceding operatic tunes (6) is formed between, is provided with the wall of the housing (4) and the preceding operatic tunes (6) connects goes out acoustic aperture (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556663.5A CN107277700A (en) | 2017-07-10 | 2017-07-10 | A kind of sound-producing device, module and electronic equipment |
| PCT/CN2017/094741 WO2019010727A1 (en) | 2017-07-10 | 2017-07-27 | Sound production device, module and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556663.5A CN107277700A (en) | 2017-07-10 | 2017-07-10 | A kind of sound-producing device, module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107277700A true CN107277700A (en) | 2017-10-20 |
Family
ID=60073256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710556663.5A Pending CN107277700A (en) | 2017-07-10 | 2017-07-10 | A kind of sound-producing device, module and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107277700A (en) |
| WO (1) | WO2019010727A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143424A (en) * | 2011-05-06 | 2011-08-03 | 深圳市豪恩声学股份有限公司 | Double-purpose thin film equipment for sound transmission and extension and manufacturing method thereof |
| CN202738100U (en) * | 2012-05-22 | 2013-02-13 | 深圳市豪恩声学股份有限公司 | Device with function of microphone and loudspeaker |
| CN204968090U (en) * | 2015-08-08 | 2016-01-13 | 江西远宏科技有限公司 | A vibrating diaphragm for in midget microphone |
| JP2017117934A (en) * | 2015-12-24 | 2017-06-29 | 京セラ株式会社 | Piezoelectric element, sound generator, sound generation device and electronic apparatus |
| CN207200959U (en) * | 2017-07-10 | 2018-04-06 | 歌尔股份有限公司 | A kind of sound-producing device, module and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0105980D0 (en) * | 2001-03-10 | 2001-05-02 | Harris Hynd Ltd | Speaker arrangement |
| TW201228409A (en) * | 2010-12-30 | 2012-07-01 | Kingstate Electronics Corp | Thin film electret, manufacturing method of thin film electret and voice broadcasting apparatus thereof |
-
2017
- 2017-07-10 CN CN201710556663.5A patent/CN107277700A/en active Pending
- 2017-07-27 WO PCT/CN2017/094741 patent/WO2019010727A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143424A (en) * | 2011-05-06 | 2011-08-03 | 深圳市豪恩声学股份有限公司 | Double-purpose thin film equipment for sound transmission and extension and manufacturing method thereof |
| CN202738100U (en) * | 2012-05-22 | 2013-02-13 | 深圳市豪恩声学股份有限公司 | Device with function of microphone and loudspeaker |
| CN204968090U (en) * | 2015-08-08 | 2016-01-13 | 江西远宏科技有限公司 | A vibrating diaphragm for in midget microphone |
| JP2017117934A (en) * | 2015-12-24 | 2017-06-29 | 京セラ株式会社 | Piezoelectric element, sound generator, sound generation device and electronic apparatus |
| CN207200959U (en) * | 2017-07-10 | 2018-04-06 | 歌尔股份有限公司 | A kind of sound-producing device, module and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019010727A1 (en) | 2019-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9843866B2 (en) | Piezoelectric bone conduction receiver and portable electronic device | |
| JP5859116B2 (en) | Electronic equipment, panel unit | |
| US8625824B2 (en) | Flat speaker unit and speaker device therewith | |
| US6653762B2 (en) | Piezoelectric type electric acoustic converter | |
| US10250993B1 (en) | Miniature speaker | |
| US9402136B2 (en) | Sound generator and electronic apparatus using the same | |
| CN109495832B (en) | Surface sound generating device and electronic equipment | |
| CN207200959U (en) | A kind of sound-producing device, module and electronic equipment | |
| US9363606B2 (en) | Acoustic generator, acoustic generating device, and electronic device | |
| CN101656906B (en) | Speaker monomer structure | |
| JP5627824B1 (en) | SOUND GENERATOR, SOUND GENERATOR, AND ELECTRONIC DEVICE | |
| JP2002010393A (en) | Piezo-electric electroacoustic transducer | |
| TWI565236B (en) | Piezoelectric device and electronic device including the same | |
| US9848268B2 (en) | Acoustic generator, acoustic generation device, and electronic apparatus | |
| US9363345B2 (en) | Cover for mobile electronic device, and mobile electronic apparatus employing same | |
| CN208940210U (en) | Key sounding device and electronic equipment | |
| CN204697287U (en) | Piezoelectric speaker | |
| US20140119587A1 (en) | Waterproof piezoelectric ceramic speaker | |
| CN107277700A (en) | A kind of sound-producing device, module and electronic equipment | |
| JP2014127767A (en) | Acoustic generator, acoustic generating device, and electronic apparatus | |
| CN106028234A (en) | Vibration diaphragm and single loudspeaker | |
| CN104936111A (en) | Piezoelectric loudspeaker | |
| CN212115670U (en) | Piezoelectric loudspeaker | |
| KR101534645B1 (en) | Piezoelectric device and electronic device having the same | |
| US10051378B2 (en) | Film speaker |
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: 20171020 |