CN107211219A - Non-ignitable piezoelectric speaker - Google Patents
Non-ignitable piezoelectric speaker Download PDFInfo
- Publication number
- CN107211219A CN107211219A CN201580075424.7A CN201580075424A CN107211219A CN 107211219 A CN107211219 A CN 107211219A CN 201580075424 A CN201580075424 A CN 201580075424A CN 107211219 A CN107211219 A CN 107211219A
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- China
- Prior art keywords
- oscillating plate
- metal
- sound
- ceramic wafer
- ignitable
- 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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- 229910052751 metal Inorganic materials 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 54
- 239000000919 ceramic Substances 0.000 claims abstract description 40
- 230000003321 amplification Effects 0.000 claims abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 3
- 235000012431 wafers Nutrition 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 14
- 239000011358 absorbing material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 5
- 230000001755 vocal effect Effects 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 241001503991 Consolida Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002889 sympathetic effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 210000003454 tympanic membrane Anatomy 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
Abstract
It is a feature of the present invention that, metal shake mould oscillating plate center adhesion ceramic wafer in the state of, exported since PA-system and by amplifier amplification, then the electric signal of sound is transmitted by electric wire, so as to still be amplified when occurring fire to sound equipment and not by external actions such as temperature and aqueous vapors；Shaken the acoustic resonator that mould oscillating plate fixed in the metal, the sharp termination of the other end for the elastic support sheet that side is supported by spring force controls vibrating for the ceramic wafer, amplified so as to stably obtain sound equipment from high pitch to bass；The metal for pasting the ceramic wafer in center shake mould oscillating plate it is cylindric around form bending section so that the distortion frequency decay of middle and high vocal cores.
Description
Technical field
The present invention relates to non-ignitable piezoelectric speaker, it is specifically to be shaken in metal on mould oscillating plate in the state of adhesion ceramic wafer,
Vibration is controlled by the sharp termination of the elastic support sheet supported in acoustic resonator by spring force, made defeated since PA-system
Amplify after going out by amplifier, and the electric signal for the sound being passed by electric wire, with the sound of high-quality from high pitch to bass
Signal, is exported, and then occur not outer by temperature and aqueous vapor etc. during fire by incombustible material ceramic wafer and metal the mould oscillating plate that shakes
Portion's influence still exports the non-ignitable piezoelectric speaker of sound.
Background technology
All noises existed around generally are passed with fluctuating form.For example, the sound heard in ear, eyes are seen
Electromagnetic wave that the light arrived, television set and radio are received etc. is passed with fluctuating form.
The sound that ear is heard is the fluctuation produced by the vibration of object, and sound is entered by the external auditory meatus i.e. earhole of people
Enter, in vibrophone, multiple cells in inner ear on the inside of eardrum, which are upset, to be passed to brain and hear sound.
The range of sounds that people can hear has 20 ~ 20,000Hz difference according to hearing ability, but is adapted to the sound of people's sense of hearing
For 125 ~ 80,000Hz.
Existing loudspeaker is divided into taper, top dome shape and bugle shape etc., is used according to purposes difference.Wherein, cone loudspeaker
It is general using the loudspeaker with conical oscillating plate, gives the voice coil loudspeaker voice coil set on oscillating plate logical upper driving current, make oscillating plate
The compressional wave of air is vibrated and formed, and then is spoken（Japanese Laid-Open Patent Publication the 2004-64726th and Japanese Laid-Open Patent are public
Report No. 2002-78077）
Existing NTX companies etc. are to start exploitation from way back to be used as oscillating plate using by surface plate, and vibrate it, Jin Erfa
The loudspeaker of sound（For example, flat No. 11-512249 of Japanese publication patent gazette）.The loudspeaker of this form is lightweight, in sound
In terms of the repeatability of sound, with cone loudspeaker and spherical loudspeaker and installation Squawker（squawker）Common box-shaped
Loudspeaker is compared, and its purposes is limited.
The existing loudspeaker used is to form the compressional wave of air and export sound, and the attenuation degree of sound reaches the two of distance
Times, if wanting to send sound to long-range, the sound of Large Copacity must be exported.
The characteristics of shear wave is that attenuation rate is lower than compressional wave, and thus proposing a kind of can remotely send the loudspeaker of sound（Example
Such as, Japanese Laid-Open Patent Publication the 2007-19623rd）.Methods described is to apply bending stress to oscillating plate, by described curved
Transverse stress formation shear wave.But the premise of the technology is, the oscillating plate is used as using plate-shaped members such as timber, plastics, metals,
Plate-shaped member bending is generated into the bending stress and added.
Loudspeaker is to convert electrical signals to vibration by electronic coil or piezoelectric element, passes through surface plate（Oscillating plate）Give
Air transmission is vibrated and sends sound.
If plate（Oscillating plate）Rigidity it is small and soft, then plate can not follow the trail of the vibration of ticker.That is, only vibrate
The periphery vibration of son, other major parts can not obtain required frequency internal vibration, therefore send unrelated noise or by dry
Disturb and do not send required sound.Especially in high pitch（Frequency is high, and vibration is fast）Above-mentioned phenomenon can be more obvious.
Therefore the plate is formed with above-mentioned board plastic, then above-mentioned phenomenon can become obvious, the plate is described raises
The performance of sound device does not reach degree that can be practical.
If constituted with firmer plate-shaped member by plate（Oscillating plate）, then can be with the rigidity of riser, but the plate sheet
Body can become too heavy, even if ticker will make the panel vibration, but the inertia of the plate becomes too big, causes the plate not chase after
The vibration of ticker described in track.As a result, being vibrated for described as caused by ticker, the plate can only export a part of frequency
Rate.
When therefore forming the plate with above-mentioned plate-shape metal, above-mentioned phenomenon can be obvious, and the plate is the loudspeaker
Performance can lose practicality.
Piezoelectric element refers to the element that electric energy and mechanical energy can change each other, and piezoelectric speaker is will be described
Piezoelectric element mechanical dynamic sound equipment is converted into by oscillating plate, and then the representativeness of the sound equipment accessory of frequency band sound equipment needed for occurring
Works.
Described piezoelectric speaker includes：Piezoelectric element, and larger formed than piezoelectric element, and it is assemblied in the pressure
The one side of electric device, and then make the oscillating plate of vibration amplification occurred by piezoelectric element.
Oscillating plate for piezoelectric speaker is the transport and Young's modulus using sound wave（The spring rate of extension）It is excellent
Metal material, therefore the advantage of piezoelectric speaker is, the vibration of piezoelectric element can be effectively converted to sound wave.
But metal is, because of its intrinsic characteristic, there is the defect that thickness is thick and weight is heavy.Therefore with tens microns
The oscillating plate that the dynamic loudspeaker of synthetic resin film formation is used is compared, for the oscillating plate relative thick of piezoelectric speaker, weight
Also it is heavier.
Oscillating plate is sound equipment that is more frivolous more can sending low-frequency band, but due to previous reasons, piezoelectric speaker is raised with electronic
Sound device is compared, and sends sound equipment limited.
Therefore Ebrean Registered Patent 10-1159037 is proposed within 06 15th, 2012（Diaphragm for speaker and with should
Raise the loudspeaker of maneuvering board）, the diaphragm for speaker possesses：A pair of clads；And press from both sides between it and possessing foaming body
The core of layer.
The foaming body layer is by the foaminess tree comprising thermosetting resin, hollow spheres inanimate matter and thermal expansivity microcapsules
Oil/fat composition is constituted；
And bending stress is applied to the diaphragm for speaker.
Propose Ebrean Registered Patent 10-1225552 within 01 17th, 2013（Piezoelectric speaker）, the speaker is by upper
The collecting shell of portion's opening, oscillating plate, the PZT of ceramic material for being contained in collecting shell（piezo-electric transducer）
Formed, the composition includes：Silver paste and following silver paste above by being formed above and below, receive from AC signal supply department and hand over
Signal is flowed, and is shunk and is expanded and make the piezoelectrics of the vibration panel vibration for being laminated to bottom；With the sheet metal of prescribed level
Shape is pasted onto the damper above silver paste above；The lid shell that the top of opening with housing shell is combined；One end is combined with lid shell,
The other end is combined with oscillating plate, and then the support for making the oscillating plate be supported by the cap.
Propose Ebrean Registered Patent 10-1057105 within 08 09th, 2011（Electrical components and its raised with this piezoelectricity
Sound device）, it includes：Piezoelectric element；The vibrating mass assembled in the one side of the piezoelectric element；Including supporting the vibration section
The shell at part edge, the central area of the vibrating mass forms the department of assembly of the assembling piezoelectric element, forms outer along edge
Edge, forms the connecting portion of the connection department of assembly and edge part, in the portion in addition to the department of assembly, edge part and connecting portion
Divide the metal vibration plate for forming through hole；Size is corresponding with the size of the metal vibration plate, and is assemblied in the metal and shakes
The resin oscillating plate of dynamic plate one side.So as to mitigate the weight of vibrating mass, low-frequency band sound equipment is further realized.
But according to the existing piezoelectric microphone, if using the method for assembling damper on piezoelectric microphone,
Middle bass can be listened to, but when volume is tuned up, can occur the saturated phenomenon of waveform distortion in treble portion, therefore exist big
The problem of power can not be effectively heard sound.
And bass is can't hear, and occur undesire frequency or wave distortion in middle and high vocal cores, cause the expansion of middle and high sound
The problem of sound is difficult.
The content of the invention
Technical problem
It is an object of the invention to provide a kind of non-ignitable piezoelectric speaker, the non-ignitable piezoelectric speaker is shaken mould oscillating plate in metal
In the state of upper adhesion ceramic wafer, shaken by the sharp termination control of the elastic support sheet supported in acoustic resonator by spring force
It is dynamic, make by amplifier to amplify after exporting since PA-system, and the electric signal for the sound being passed by electric wire, from high pitch
To bass with the voice signal of high-quality, exported by incombustible material ceramic wafer and metal the mould oscillating plate that shakes, and then occur fire
When still do not exported sound by external actions such as temperature and aqueous vapors.
It is another object of the present invention to shaking to apply around mould oscillating plate in the metal of center adhesion ceramic wafer forms
The deformation of crooked position, so that the distortion of vibration is stable, absorbs, so as to amplify out for physically from bass or even high pitch
The sound of high-quality.
It is another object of the present invention to, by it is absorbable according to the metal shake the copper of mould oscillating plate, stainless steel, titanium,
The sound-absorbing material for the high gain characteristics frequency that the materials such as nickel occur, is optionally assemblied in built-in ceramic plate and metal shakes mould vibration
The inside of the acoustic resonator of plate and elastic support sheet, makes output frequency stable.
Pass through parallel connection it is another object of the present invention to the shake two sides of mould oscillating plate of, the metal for possessing circular port in center
Circuit adheres to ceramic wafer, by two ceramic wafers, and big vibration is passed to metal and shaken mould oscillating plate.
Technical scheme
It is to provide a kind of non-ignitable piezoelectric speaker to solve described problem solution of the present invention, it is characterized in that,
Metal shakes on mould oscillating plate in the state of adhesion ceramic wafer, makes by amplifier to amplify after exporting since PA-system, and lead to
Cross the electric signal that electric wire is passed sound, make ceramic wafer and metal shake the non-ignitable accessory such as mould oscillating plate occur fire when not by temperature
The external action such as degree and aqueous vapor still exports sound；
Shaken the another of the elastic support sheet that side in the acoustic resonator that mould oscillating plate fixed supported by spring force in the metal
The sharp termination at end controls the vibration of the ceramic wafer, so that high pitch is exported to bass with the voice signal of high-quality；
Shaken in the metal of the center adhesion ceramic wafer and apply the deformation for forming crooked position around mould oscillating plate, so that
Make the distortion of vibration stable, the saturated phenomenon of overall frequency is reduced, so that the sound equipment for the high-quality that amplifies out；
The high gain characteristics frequency that the materials such as copper, stainless steel, titanium, nickel by the absorbable mould oscillating plate that shaken according to the metal occur
Sound-absorbing material, be optionally assemblied in the built-in ceramic wafer and the metal shake being total to of mould oscillating plate and elastic support sheet
The inside of ring device, makes output frequency stable.
Beneficial effect
According to the non-ignitable piezoelectric speaker of the present invention, its advantage is,
Shaken in metal on mould oscillating plate in the state of adhesion ceramic wafer, make by amplifier to amplify after exporting since PA-system
Electric signal be passed by electric wire, and by ceramic wafer and the metal non-ignitable accessory such as mould oscillating plate that shakes；
Shaken the another of the elastic support sheet that side in the acoustic resonator that mould oscillating plate fixed supported by spring force in the metal
The sharp termination at end controls the vibration of the ceramic wafer, the sound equipment of high-quality so that high pitch amplifies out to bass；
The center adhesion ceramic wafer metal shake mould oscillating plate it is cylindric around form crooked position, reduce saturation and show
As so that distortion frequency decays.
Brief description of the drawings
Fig. 1 is the integrally-built skeleton diagram of the diagram present invention；
Fig. 2 is the skeleton diagram for the vibrating mass structure for illustrating another embodiment of the present invention；
Fig. 3 is the chart of the piezoelectric speaker output frequency characteristic of the diagram present invention；
Fig. 4 is the chart for illustrating existing Common piezoelectricity loudspeaker output frequency characteristic；
Fig. 5 is the chart that the piezoelectric speaker and existing Common piezoelectricity loudspeaker output frequency characteristic of the present invention are compared to diagram.
Preferred forms
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
The non-ignitable piezoelectric speaker of the present invention is made of Frequency Determining Unit measure with materials such as copper, stainless steel, titanium, nickel
Metal vibration diaphragm oscillating plate 3 frequency characteristic, and then grasp fragile to which frequency band in advance,
Piezoelectric element ceramic wafer 2 is sticked to the center of the metal vibration film oscillating plate 3, the vibrating mass of incombustible material is made
1,
The metal vibration diaphragm oscillating plate 3 of the vibrating mass 1 is integrally fixed at the open position of acoustic resonator 5,
In the inside of the acoustic resonator 5, side can by the opposite side of the elastic support sheet 7 of the resilient support of spring 6 sharp termination
Vibration is optionally controlled with the ceramic wafer 2, and then is amplified and sound by amplifier 11 after the output of PA-system 10
Be ceramic wafer 2 and metal vibration diaphragm oscillating plate 3 by incombustible material when electric signal is passed by electric wire 12, export into tonequality from
High pitch to the uniform voice signal of bass,
The center adhesion ceramic wafer 2 metal vibration diaphragm oscillating plate 3 it is cylindric around form crooked position 4, metal is shaken
The vibration of film oscillating plate 3 stops at its position, and then the distortion frequency for occurring the main peripheral position in metal vibration diaphragm oscillating plate 3
Rate decays and makes overall frequency stable,
The inner face of the acoustic resonator 5 assembles the different frequency characteristic of the material of metal vibration diaphragm oscillating plate 3 according to existing measure,
Suction can cause the sound-absorbing material 8 eliminated after the frequency of the frequency band of wave distortion, make to exist from high pitch to the uniform sound of bass tonequality
Still it can not listened to by the outside shadow such as temperature and aqueous vapor during generation fire.
The non-ignitable piezoelectric speaker of the invention constituted as described above is that the manufacture thickness of ceramic wafer 2 of piezoelectric element 2 is
0.2mm or so.
Frequency characteristic is determined during the metal vibration diaphragm oscillating plates 3 of material such as manufacture copper, stainless steel, titanium, nickel, so as to grasp in advance
It is fragile to a certain frequency band.
The ceramic wafer 2 is sticked into the center of metal vibration diaphragm oscillating plate 3 and vibrating mass 1 is made.
The ceramic wafer 2 and metal vibration diaphragm oscillating plate 3 of the vibrating mass 1 are the incombustible materials that will not be influenceed by aqueous vapor, therefore
Will not be by externalities such as temperature and aqueous vapors during generation fire, and export sound.
The metal vibration diaphragm oscillating plate 3 of the vibrating mass 1 is fixed in the open position of acoustic resonator 5, and then in sympathetic response
The inside of device 5 is amplified by the vibration of metal vibration diaphragm oscillating plate 3 and ceramic wafer 2.
In the inside of the acoustic resonator 5, side can be by the sharp of the opposite side of the elastic support sheet 7 of the resilient support of spring 6
Terminal can optionally control vibration with the ceramic wafer 2, and then amplify after the output of PA-system 10 by amplifier 11
The electric signal of sound when being passed by electric wire 12, be ceramic wafer 2 and metal vibration diaphragm oscillating plate 3, output by incombustible material
From high pitch to the uniform voice signal of bass tonequality, therefore when not occurring emergency, it can be listened to stable high-quality sound
Music or broadcast.
The center adhesion ceramic wafer 2 metal vibration diaphragm oscillating plate 3 it is cylindric around form crooked position 4, make gold
The vibration for belonging to diaphragm oscillations plate 3 stops at its position, the saturation that the main peripheral position in metal vibration diaphragm oscillating plate 3 of prevention occurs
Phenomenon, makes distortion frequency decay, and then makes overall frequency stable.
The inner face assembling of the acoustic resonator 5 is special according to the different frequency of the material of metal vibration diaphragm oscillating plate 3 determined
Property, suction can cause the sound-absorbing material 8 eliminated after the frequency of the frequency band of wave distortion, make from high pitch to the uniform sound of bass tonequality
Not by the outside shadow such as its temperature and aqueous vapor and it can be listened to when occurring fire.
Ceramic wafer 2 and metallic plate 3 are respectively provided with anti-flammability, occur the urgent things such as fire, building collapse, the leakage of various gases
During state, broadcast can also stably be amplified.
Embodiment
Fig. 2 is the schematic diagram of the vibrating mass structure of another embodiment of the present invention, and the metal that center possesses circular port 21 shakes
The two sides adhesion of mould oscillating plate 20 has mutually different diameter（diameter）Ceramic wafer 22,23, two ceramic wafers will be passed through
22nd, 23 frequency ranges become big and then low frequency it is wide become big vibration and be delivered to metal shake mould oscillating plate 20 so that listen to dynamic voice and
Will not be by external actions such as temperature and aqueous vapors during generation fire.
According to Fig. 3 to Fig. 5, piezoelectric speaker of the invention is as shown in figure 3, from the best sonic-frequency band of output frequency characteristic
1KHz to 230Hz can listen to well, but existing Common piezoelectricity loudspeaker is as shown in figure 4, arriving output frequency characteristic
Could well it be listened to untill 550Hz frequency band.
In Figure 5 to the present invention piezoelectric speaker sonic-frequency band 1KHz, only listen to well to 230Hz output frequency
Rate characteristic（It is identical with Fig. 3 diagram）, existing Common piezoelectricity loudspeaker 1KHz frequency bands, only listen to well to 550Hz
The output frequency characteristic of frequency band（It is identical with Fig. 4 diagram）Mutually clearly compare.
Commercial Application
Preferred embodiment above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although implementing with reference to foregoing
The present invention is described in detail example, it will be understood by those within the art that：It can still be implemented to foregoing
Technical scheme described in example is modified；And these are changed, the essence of appropriate technical solution is departed from the present invention and respectively implement
The scope of the example technical scheme.
Claims (5)
1. a kind of non-ignitable piezoelectric speaker, it is characterised in that
Shaken mould oscillating plate in metal（3）Center adhesion ceramic wafer（2）And form incombustible material vibrating mass（1）In the state of, from
PA-system（10）The electric signal of sound is exported, and passes through amplifier（11）Pass through electric wire after amplification（12）It is passed；
The vibrating mass（1）Metal shake mould oscillating plate（3）It is fixed on acoustic resonator（5）Open position；
The acoustic resonator（5）Internal elastic support sheet（7）Sharp termination and the ceramic wafer（2）Optionally control is shaken
It is dynamic.
2. non-ignitable piezoelectric speaker according to claim 1, it is characterised in that
The elastic support sheet（7）Side in the acoustic resonator（5）Inside by spring（6）Resilient support, opposite side
Sharp termination and the ceramic wafer（2）Optionally control vibration, so as to amplify into the uniform sound of tonequality from high pitch to bass
Message number.
3. non-ignitable piezoelectric speaker according to claim 1, it is characterised in that
The ceramic wafer（2）In the metal vibration diaphragm oscillating plate of center adhesion（3）Cylindric surrounding formation crooked position（4）, from
And make the howling of high pitch stable.
4. non-ignitable piezoelectric speaker according to claim 1, it is characterised in that
The acoustic resonator（5）Inner face adhesion will be shaken according to the metal mould oscillating plate（3）The frequency characteristic of material cause ripple
The sound-absorbing material that the frequency of the frequency band of shape distortion is sucked and eliminated（8）, so that outer not by temperature and aqueous vapor etc. when occurring fire
Portion's shadow, still can hear the sound of high-quality.
5. non-ignitable piezoelectric speaker according to claim 1, it is characterised in that
Possesses circular port in center（21）Metal shake mould oscillating plate（20）Two sides, by the mutually different ceramic wafer of diameter value
（22）（23）Adhered to by parallel circuit, frequency range passes through two ceramic wafers（22）（23）Broaden, can by low frequency it is wide broaden shake
The dynamic metal that passes to shakes mould oscillating plate（20）, therefore can also hear dynamic voice and not by temperature and aqueous vapor when occurring fire
Deng external action.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150016489A KR101583650B1 (en) | 2015-02-03 | 2015-02-03 | nonflammables speaker of piezo electricity type |
| KR10-2015-0016489 | 2015-02-03 | ||
| PCT/KR2015/005298 WO2016125956A1 (en) | 2015-02-03 | 2015-05-27 | Nonflammable piezoelectric speaker device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107211219A true CN107211219A (en) | 2017-09-26 |
Family
ID=55169817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580075424.7A Pending CN107211219A (en) | 2015-02-03 | 2015-05-27 | Non-ignitable piezoelectric speaker |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2018504078A (en) |
| KR (1) | KR101583650B1 (en) |
| CN (1) | CN107211219A (en) |
| WO (1) | WO2016125956A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277083A (en) * | 2018-03-16 | 2019-09-24 | 北京理工大学 | A kind of low frequency absorption Meta Materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101666754B1 (en) * | 2015-06-22 | 2016-10-14 | 정길선 | broadcasting apparatus for emergency escape |
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| KR20130016976A (en) * | 2011-08-09 | 2013-02-19 | (주)이노포유 | Sound converting device using piezoelectric motor |
| CN103002363A (en) * | 2011-09-19 | 2013-03-27 | 方桂梅 | Stereo conversion device using piezoelectric driving module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03798Y2 (en) * | 1985-06-19 | 1991-01-11 | ||
| KR100811286B1 (en) * | 2006-05-19 | 2008-03-07 | (주)아이블포토닉스 | Piezoelectric vibrator for regenerating sound, and piezoelectric panel speaker and piezoelectric earphone having the same |
| JP2010131540A (en) * | 2008-12-05 | 2010-06-17 | Yamatake Corp | Dust collection cell and air cleaner |
| KR101057105B1 (en) * | 2009-09-01 | 2011-08-17 | 주식회사 이노칩테크놀로지 | Vibration member and piezoelectric speaker using same |
| KR20120064984A (en) * | 2010-12-10 | 2012-06-20 | 한국전자통신연구원 | Piezoelectric speaker |
| JP2014072571A (en) * | 2012-09-27 | 2014-04-21 | Shotoku Kogyosho Co Ltd | Corrugated tube speaker box and acoustic device |
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2015
- 2015-02-03 KR KR1020150016489A patent/KR101583650B1/en active IP Right Grant
- 2015-05-27 CN CN201580075424.7A patent/CN107211219A/en active Pending
- 2015-05-27 WO PCT/KR2015/005298 patent/WO2016125956A1/en active Application Filing
- 2015-05-27 JP JP2017559264A patent/JP2018504078A/en active Pending
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|---|---|---|---|---|
| JPH03124200A (en) * | 1989-10-07 | 1991-05-27 | Nippon Chemicon Corp | Piezoelectric panel speaker |
| KR20130016976A (en) * | 2011-08-09 | 2013-02-19 | (주)이노포유 | Sound converting device using piezoelectric motor |
| CN103002363A (en) * | 2011-09-19 | 2013-03-27 | 方桂梅 | Stereo conversion device using piezoelectric driving module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277083A (en) * | 2018-03-16 | 2019-09-24 | 北京理工大学 | A kind of low frequency absorption Meta Materials |
| CN110277083B (en) * | 2018-03-16 | 2021-04-02 | 北京理工大学 | Low-frequency sound absorption metamaterial |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101583650B1 (en) | 2016-01-11 |
| JP2018504078A (en) | 2018-02-08 |
| WO2016125956A1 (en) | 2016-08-11 |
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