CN101867859A - Electrostatic loudspeaker - Google Patents
Electrostatic loudspeaker Download PDFInfo
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- CN101867859A CN101867859A CN200910135002A CN200910135002A CN101867859A CN 101867859 A CN101867859 A CN 101867859A CN 200910135002 A CN200910135002 A CN 200910135002A CN 200910135002 A CN200910135002 A CN 200910135002A CN 101867859 A CN101867859 A CN 101867859A
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- supporter
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Abstract
The invention relates to a loudspeaker structure, which at least comprises a diaphragm, an opening electrode, a frame support body and a plurality of supporting bodies. The frame support body is used for forming the exterior structure of the loudspeaker structure and for fixing the diaphragm and an electrode on two corresponding sides. The supporting bodies are arranged between the non-opening area of the electrode and the diaphragm, and forms at least one annular geometric structure so as to prevent the diaphragm from being contacted with the electrode.
Description
Technical field
The present invention is relevant for the structure of a kind of electrostatic loudspeaker (Electrostatic speaker), and is particularly to supporter (Supporting Members) structure Design in a kind of planar electrostatic formula loud speaker.
Background technology
The most direct two kinds of sense organs of the mankind are the vision and the sense of hearing, and therefore for a long time, scientists develops relevant therewith element or systems technology with doing one's utmost.Electroacoustic loud speaker classification at present mainly is divided into direct radiation type and indirec radiation type, then can roughly be divided into moving-coil type (Dynamic), piezoelectric type (Piezoelectric) and electrostatic (Electrostatic) loud speaker with the type of drive classification.
The present market of electrostatic loudspeaker is mainly the earphone and the loudspeaker of top (Hi-end), the action principle of conventional electrostatic formula loud speaker is to have perforate and fixing electrode (Electrode) with two to seize the vibrating diaphragm (Vibrating film) of conduction on both sides by the arms and form electric capacity, by the alternating voltage of supplying with the vibrating diaphragm Dc bias and giving two electrode audio frequency, the electrostatic force (Electrostatic force) that utilizes positive negative electric field to take place, the drive vibrating diaphragm vibrates and acoustic radiating is gone out.The bias voltage of conventional electrostatic formula loud speaker need reach supreme kilovolts up to a hundred, therefore needs the amplifier of external high unit price and bulkiness, is its reason that can't popularize.If electrostatic loudspeaker collocation can be stayed the structural design of the vibrating diaphragm of electricity, can allow contact with each other between electrode and vibrating diaphragm and cause and to speak though can reduce the electrostatic effect of the alternating voltage vibrating diaphragm of audio frequency.
About electrostatic loudspeaker, the U.S. the 3rd, 894, No. 199 patents are to disclose a kind of electroacoustic transducer (Electroacoustic transducer) as shown in Figure 1, it is the electroacoustic transducer schematic diagram of the 3rd, 894, No. 199 patents of the U.S..The frame supporter (Frame holding member) 110 that insulating material is made holds on two fixing electrodes 120.Vibrating diaphragm 130 is between two electrodes 120.Have in the electrode 120 many perforates 121 make the sound width of cloth penetrate by.Polarizing voltage (Polarization voltage) 141 is by vibrating diaphragm 130, each electrode 120, and passes stepup transformer (Step-up transformer) 140 and resistance 142.The main coil of stepup transformer 140 (Primary winding) 143 connects signal source 150.The current potential of two electrodes 120 is supplied with by the AC signal of signal source 150.The current potential of two electrodes 120 is opposite, and promptly one positive one is negative.
Described by preceding case, its frame supporter 110 only is used to support fixed electrode 120, and 120 there is no supporter between vibrating diaphragm 130 and electrode, can't avoid electrode 120 and vibrating diaphragm 130 false touches, and flat loudspeaker there is no relevant design description for supporter at present as can be known.
In addition, traditional electrostatic loudspeaker produces lower frequency (ability of＜500Hz) sound is not enough, so the coil-moving speaker of the LF-response of can arranging in pairs or groups more than the commercially available electrostatic loudspeaker.Hence one can see that, improves traditional electrostatic loudspeaker low-frequency sound pressure deficiency, is the important topic of this area.
Summary of the invention
The invention provides a kind of flat loudspeaker structure.In one embodiment, loadspeaker structure proposed by the invention comprises vibrating diaphragm, electrode, frame supporter and at least one group of supporter.Above-mentioned electrode has a plurality of perforates, and the frame supporter constitutes the external form of this loadspeaker structure, and in order to fixing vibrating diaphragm and electrode in corresponding both sides.And described each group supporter is disposed between electrode non-open area and the vibrating diaphragm, and forms at least one circular geometry structure.Above-mentioned vibrating diaphragm comprises an electret layer and an electrode layer at least.
And described supporter configuration layout type is the electrostatic effect size decision according to vibrating diaphragm.In one embodiment, can adjust supporter height and/or and the adjacent supports body between distance.
In one embodiment, described supporter is to adopt the transfer printing mode to be formed on electrode or the vibrating diaphragm.And the transfer printing mode comprises that ink-jet is printd or screen painting or the like.Among another embodiment, described supporter be adopt to change the subsides mode to be formed on electrode or the vibrating diaphragm wherein supporter and vibrating diaphragm or electrode sticking or inadhesion.
In one embodiment, described supporter is to be formed on electrode or the vibrating diaphragm via etching mode or photoresistance exposure (Photolithography) mode of developing.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 is the electroacoustic transducer schematic diagram of the 3rd, 894, No. 199 patents of the U.S..
Fig. 2 A and 2B are loadspeaker structure generalized section according to an embodiment of the invention.
Fig. 3 A looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.
Fig. 3 B looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.
Fig. 4 A is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 4 B is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 4 C is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 4 D is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 4 E is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 4 F is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 4 G is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.
Fig. 5 A looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.
Fig. 5 B looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.
Fig. 6 A has the different natural frequency (Fundamentalfrequency that arrange the loadspeaker structure of supporter; F
0) broken line graph.
Fig. 6 B has the different loadspeaker structures of arranging supporter, the acoustic pressure broken line graph that produces under the frequency of 1000Hz.
The main element symbol description
120,320B: electrode
121,221,321A, 321B: perforate
130,230: vibrating diaphragm
140: stepup transformer
141: polarizing voltage
142: resistance
143: main coil
150: signal source
200,300A, 300B: loadspeaker structure
110,210,310A, 310B, 510A, 510B: frame supporter
220,320A, 520A, 520B: electrode
232: electret layer
234: conductive electrode layer
240,340A, 340B, 440A, 440B, 440C, 440D, 440E, 440F, 440G, 540A, 540B: supporter
Embodiment
The invention provides a kind of supporter design of flat loudspeaker, solve between electrode and the vibrating diaphragm and cause the technical problem that to speak, and improve the technical problem of traditional electrostatic loudspeaker low-frequency sound pressure deficiency simultaneously because of electrostatic force contacts with each other.Wherein, the simple structure of supporter and the prior art of can arranging in pairs or groups are carried out processing procedure, are applicable to a large amount of productions.And above-mentioned electrode can be metal material or other conductive materials, and can sound can be spread perforate by perforate on electrode.Vibrating diaphragm then comprises electret layer and the conductive electrode of being made up of the electret material at least.
This conductive electrode is if adopt metal electrode, for the tension force that do not influence electret layer and the effect of vibration, can be a kind of metal film electrode as thin as a wafer then, and thickness is about 0.3 μ m.And consider this as thin as a wafer metal film electrode be exposed to and use in the air, can oxidation by air form complete insulator, and then have influence on the input of sound source signal, can make insulating barrier on metal film electrode in its surface, but must reserve the position of sound source signal input.In addition, this conductive electrode also can adopt this material as the oxidation conduction to have the material that printing opacity conducts electricity, for example indium tin oxide (Indium tin oxide with employing; ITO), indium-zinc oxide (Indium zinc oxide; IZO) with aluminium zinc oxide (Aluminum zinc oxide; AZO) or the like one of them.
The supporter of loud speaker of the present invention is one of important composition technology of dynamic planar loudspeakers.Supporter places between electrode and vibrating diaphragm, solves in the planar electrostatic formula loadspeaker structure, and vibrating diaphragm institute tool electrostatic effect causes vibrating diaphragm and electrode to contact with each other and the prior art problems that can't speak.This supporter improves the technical problem of traditional electrostatic loudspeaker low-frequency sound pressure deficiency simultaneously.
This supporter between electrode and vibrating diaphragm, form at least one circular geometry structure, and arrangement mode that can be different according to the electrostatic effect size design of vibrating diaphragm for example is arranged at least one each and every one circle, ellipse, hexagon, square, rhombus, rectangle, triangle or above combination in any; These circular geometry structures can that is to say that the center of these circular geometry structures can be roughly overlapping for concentric in fact.Perhaps, these circular geometry structures can dispose for off-centre.And the arrangement of these circular geometry structures can utilize the distance adjusted between the supporter or height of supporter or the like, for example the distance between these circular geometry structures can equate or be unequal, and the height of these supporters can be consistent or inconsistent.In addition, these circular geometry structures can be sealing or the graphic structure that does not seal.And the distance between the supporter or the difference of the height of supporter are to consider the overall frequency response of loadspeaker structure and design, and for example adjust different distances or height according to loud speaker frequency of optimum traffic scope.
The supporter of loud speaker proposed by the invention can directly be made on the electrode, or directly is made on the vibrating diaphragm.Supporter can with vibrating diaphragm or electrode sticking (Adhesion) or inadhesion, perhaps make supporter in advance, wait and again it inserted between electrode and the vibrating diaphragm after finishing.
Supporter proposed by the invention can utilize transfer printing (Transfer-print) or change subsides (Decal) to be produced on electrode or the vibrating diaphragm.Aforementioned supporter also can adopt printing (Printmaking) to make, and comprises direct printing (Direct printing) or directly fit (Lamination).And directly printing comprises screen painting (Screenprinting).This supporter also can adopt photoresistance (Photoresist) to grow up or etching (Etching) forms.
Planar electrostatic formula loud speaker is the charge characteristic of utilization diaphragm materials inside and the principle of electrostatic force effect.After vibrating diaphragm is subjected to the external voltage stimulation, causes the distortion on vibrating diaphragm surface, and then drive the vibrating diaphragm ambient air to produce sound.Learn that by electrostatic force formula and energy law vibrating diaphragm is stressed for the capacitance of whole loud speaker is multiplied by internal electric field size and outside sound import voltage signal, if vibrating diaphragm is stressed big more, then output sound is big more.According to Coulomb's law (Coulomb ' s law), the electric charge product of two charged objects is proportional to interaction electrostatic force, is inversely proportional to the square distance of two things; If two electric charges are when being all plus or minus, and its object is subjected to mutual exclusion electrostatic force, and its object was subjected to inhale mutually electrostatic force when electric charge one positive was negative.The electrostatic force formula can be represented by (formula 1).
Permittivity of vacuum ε wherein
o=8.85 * 10
-12F/m, ε
eBe electret dielectric constant (Dielectric constant), S
eBe electret thickness, S
aBe air layer thickness, V
InBe applied signal voltage, V
eBe electret voltage, P is that vibrating diaphragm unit is stressed.If therefore under identical distance, electrostatic loudspeaker if can provide the high electricity of staying, the sound voltage signal of then importing loud speaker can be reduced to three ten-day period of hot season spy to tens of volts, therefore can improve the practicality of planar electrostatic formula loud speaker.
Therefore, the present invention proposes following execution mode, but the material with electrode of perforate can be metal or conductive material.At this, the perforate that metal material had can be beneficial to sound dispersion.In another embodiment, on paper as thin as a wafer, electroplate the electrode layer of one deck conduction, also have identical effect.
In one embodiment, vibrating diaphragm comprises electret, for example dielectric material (Dielectric materials).And this dielectric material is handled and can be possessed electrostatic charge (Static charges) for a long time through electrification (Electrized), stays electric effect and can produce at material internal through charging after, so is called electret vibrating membrane.This electret vibrating membrane can be the made vibrating diaphragm of single or multiple lift dielectric material, and described dielectric material can be for example fluorinated ethylene propylene copolymer (FEP; Fluorinated ethylenepropylene), polytetrafluoroethylene (PTFE; Polytetrafluoethylene), the inferior ethene (PVDF of poly-fluorine; Polyvinylidene fluride), part fluoro containing polymers polymer (Fluorine polymer) and other suitable materials or the like.Because after electret vibrating membrane is the processing of dielectric material process electrification, so can possess the vibrating diaphragm of electrostatic charge and piezoelectricity for a long time, and inside is comprised receive micron perforate increasing light transmittance and piezoelectric property, behind corona charging, produce bipolarity electric charge (Dipolar charges) and produce and stay electric effect at material internal.
And the material of supporter adopts the material of transparent and deflection, and for example plastic material or the like uses the variation that designs to increase supporter.
Following supporter according to loud speaker is with the specific embodiment explanation.
Please refer to Fig. 2 A and 2B, it is loadspeaker structure generalized section according to an embodiment of the invention.Loadspeaker structure 200 comprises the frame supporter 210 that forms the loud speaker external form, the electrode 220 with a plurality of perforates 221, vibrating diaphragm 230 and intervenient at least one group of supporter 240.This electrode 220 with perforate is individually fixed in frame supporter 210 with vibrating diaphragm 230, and face is corresponding with face, and supports and do not contact with each other via the frame supporter 210 that is connected in its two ends.And frame supporter 210 highly can be equivalent to the height of supporter 240 or higher, can determine according to the loadspeaker structure designing requirement.Vibrating diaphragm 230 comprises electret layer 232 and conductive electrode layer 234.
Contact with each other for the electrostatic effect of avoiding vibrating diaphragm 230 to be produced causes vibrating diaphragm 230 and electrode 220, insert at least one supporter 240 at electrode 220 and 230 of vibrating diaphragms, but it is positioned at the non-open area of electrode 220.These supporters 240 can be made on the electrode 220 or be made on the vibrating diaphragm 230.In another embodiment, these supporters 240 also can with 220 adhesion (Adhesion) or the inadhesion of vibrating diaphragm 230 or electrode, perhaps make in advance and insert 230 of electrode 220 and vibrating diaphragms behind the supporter 240 again.
The distribution of supporter 240 then considers to stay the number of electric weight on the vibrating diaphragm or the size of electrostatic effect is taked best distribution, or consider because of supporter configuration distance difference, take the design of different supporter height, the previous designs purpose all is in order to make 230 of electrode 220 and vibrating diaphragms, except with supporter 240, contactless possibility is shown in Fig. 2 B.
Supporter with aforesaid embodiment is an example, and supporter 240 can adopt transfer printing or change the mode of pasting and be made on electrode 220 or the vibrating diaphragm 230.In another embodiment, also can adopt the fabrication techniques supporter 240 of printing, comprise direct printing, wire mark or the mode of directly fitting.The mode that aforementioned supporter 240 also can adopt photoresistance (Photoresist) to grow up, or adopt etching (Etching) mode to form.
Please refer to Fig. 3 A, it looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.Among the loadspeaker structure 300A, comprise frame supporter 310A, the electrode 320A and the vibrating diaphragm (not shown) that form the loud speaker external form.For convenience of description, this loadspeaker structure 300A is example with square, but that it is not limited to is square, and the design of the loadspeaker structure of Any shape is all applicable to this embodiment.In this embodiment, electrode 320A has a plurality of perforate 321A; And the non-open area of electrode 320, then configurable at least one group of supporter 340A.By this supporter 340A, can avoid contacting with each other the problem that to speak that causes because of electrostatic force between electrode 320A and the vibrating diaphragm.
Please refer to Fig. 3 B, it looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.Among the loadspeaker structure 300B, comprise frame supporter 310B, the electrode 320B and the vibrating diaphragm (not shown) that form the loud speaker external form.For convenience of description, this loadspeaker structure 300A is an example with the circle, but it is not limited to circle, and the design of the loadspeaker structure of Any shape is all applicable to this embodiment; And in this loadspeaker structure, electrode 320B has a plurality of perforate 321B; The non-open area of electrode 320B disposes at least one group of supporter 340B, and this group of supporter 340B forms at least one circle; These circles can that is to say that these circular centers can be roughly overlapping for concentric in fact.Perhaps, these circles can dispose for off-centre.By these supporters 340B, can avoid contacting with each other the problem that to speak that causes because of the electrostatic force factor between electrode 320B and the vibrating diaphragm.
Then, please refer to Fig. 4 A, it is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.According to this embodiment, the supporter of loadspeaker structure forms a circular geometry structure; Supporter 440A forms circular configuration, and this circular configuration is sealing.Perhaps, with reference to Fig. 4 B, it is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention, and supporter 440B forms circular configuration, and this circular configuration is essentially the circular geometry structure for not sealing and constituting.
Please refer to Fig. 4 C, it is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention.The supporter of loadspeaker structure forms at least one circular geometry structure; These circular geometry structures can that is to say that the center of these circular geometry structures can be roughly overlapping for concentric in fact.Perhaps, these circular geometry structures can dispose for off-centre.According to this embodiment, supporter 440C forms at least one circular configuration, and these circular configurations are sealing.Perhaps, with reference to Fig. 4 D, it is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention, and supporter 440D forms at least one ellipsoidal structure; These ellipsoidal structures can that is to say that the center of these ellipsoidal structures can be roughly overlapping for concentric in fact.Perhaps, these ellipses can dispose for off-centre.In addition, please refer to 4E, it is the supporter schematic diagram of loadspeaker structure according to an embodiment of the invention; According to this embodiment, supporter 440E forms at least one circular configuration, and these circular configurations respectively are sealing or do not seal that wherein these circular configurations can that is to say that the center of these circular configurations can be roughly overlapping for concentric in fact.Note that according to present embodiment spirit and can comprise that these circular geometry structures dispose with eccentric manner.
Perhaps, except forming at least one circular geometry structure, supporter also can additionally form an in-line or a decussate texture again, and shown in Fig. 4 F and 4G difference, it is respectively a plurality of supporter schematic diagrames of loadspeaker structure according to an embodiment of the invention.With reference to Fig. 4 F and 4G, supporter 440F and 440G can form at least one circular geometry structure and extra in-line and decussate texture.
Above embodiment is only in order to explanation, but not in order to limit the present invention; The circular geometry structure that supporter forms can be hexgonal structure, square structure, diamond structure, rectangle structure, triangular structure, above combination in any or any geometric figure structure.
For strengthening the frequency response effect of loud speaker, between the circular geometry structure that these supporters form, the distance between it can be adjusted arbitrarily, to reach the best sound effective value that goes out; Distance between these circular geometry structures can equate or be unequal.And the height of these supporters also can be adjusted arbitrarily, to reach the best sound effective value that goes out; The height of these supporters can be consistent or inconsistent.In addition, these circular geometry structures can be sealing or do not seal.
Please refer to Fig. 5 A, it looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.Among the loadspeaker structure 500A, comprise frame supporter 510A, the electrode 520A and the vibrating diaphragm (not shown) that form the loud speaker external form.In this embodiment, electrode 520A has a plurality of perforate 521A; And the non-open area of electrode 520A, then configurable at least one group of supporter 540A, wherein each group supporter respectively forms at least one circular geometry structure; These circular geometry structures can that is to say that the center of these circular geometry structures can be roughly overlapping for concentric in fact.Perhaps, these circular geometry structures can dispose for off-centre.By these supporters 540A, can avoid contacting with each other the problem that to speak that causes because of the electrostatic force factor between electrode 520A and the vibrating diaphragm.
Please refer to Fig. 5 B, it looks perspective diagram on the loadspeaker structure according to an embodiment of the invention.Among the loadspeaker structure 500B, comprise frame supporter 510B, at least one the electrode 520B and the vibrating diaphragm (not shown) that form the loud speaker external form.In this embodiment, these electrodes 520B has a plurality of perforate 521B; And the non-open area of these electrodes 520B, then configurable at least one group of supporter 540B, wherein each group supporter respectively forms at least one circular geometry structure; These circular geometry structures can that is to say that the center of these circular geometry structures can be roughly overlapping for concentric in fact.Perhaps, these circular geometry structures can dispose for off-centre.By these supporters 540B, can avoid contacting with each other the problem that to speak that causes because of the electrostatic force factor between these electrodes 520B and the vibrating diaphragm.
Then, please refer to Fig. 6 A, it is to have different natural frequency (the First Nature frequency that arrange the loadspeaker structure of supporter; F
0) broken line graph.When the supporter of square loadspeaker structure formed the graphic structure of square palisade, its natural frequency was 525Hz; When the supporter of the loadspeaker structure of circle formed two concentric structures and a decussate texture, its natural frequency was 525Hz; When the supporter of the loadspeaker structure of circle formed two concentric structures and an in-line structure, its natural frequency was 475Hz; When the supporter of the loadspeaker structure of circle only formed two concentric structures, its natural frequency was 450Hz.
In addition, please refer to Fig. 6 B, it is to have the different loadspeaker structures of arranging supporter, the acoustic pressure broken line graph that produces under the frequency of 1000Hz.When the supporter of square loadspeaker structure formed the graphic structure of square palisade, its acoustic pressure that produces under the frequency of 1000Hz was 79.5dB; When the supporter of the loadspeaker structure of circle formed two concentric structures and a decussate texture, its acoustic pressure that produces under the frequency of 1000Hz was 77.5dB; When the supporter of the loadspeaker structure of circle formed two concentric structures and an in-line, its acoustic pressure that produces under the frequency of 1000Hz was 77.5dB; When the supporter of the loadspeaker structure of justifying structure shape only formed two concentric structures, its acoustic pressure that produces under the frequency of 1000Hz was 80.5dB.
In sum, the present invention can solve between metal electrode and the electret vibrating membrane and cause the problem that can't speak because of electrostatic force contacts with each other, and improves the technical problem of traditional electrostatic loudspeaker low-frequency sound pressure deficiency simultaneously.Supporter simple structure, and the prior art manufacturing of can arranging in pairs or groups are applicable to a large amount of productions in fact, can promote the practicality of planar electrostatic formula loud speaker.The arrange in pairs or groups selection of deflection material of the present invention can break through existing fixed loadspeaker structure, finishes the sound spare part that possesses the required characteristic of soft electronic, and can expect it is one of important structure composition technology of dynamic planar loudspeakers.
Though the present invention with preferred embodiment openly as above; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; can do some and change and retouching, so protection scope of the present invention is with being as the criterion that claim was limited.
Claims (18)
1. loadspeaker structure comprises:
One vibrating diaphragm, wherein said vibrating diaphragm comprise an electret layer and a conductive electrode layer at least;
One electrode has a plurality of perforates;
One frame supporter, in order to fixing described vibrating diaphragm and described electrode in corresponding both sides; And
At least one group of supporter, wherein each group supporter is disposed between the non-open area and described vibrating diaphragm of described electrode, and forms at least one circular geometry structure.
2. loadspeaker structure as claimed in claim 1, wherein said supporter also are included in and form an in-line structure or a decussate texture in the described circular geometry structure.
3. loadspeaker structure as claimed in claim 1, the arrangement mode of wherein said circular geometry structure are the electrostatic effect size decision according to described vibrating diaphragm.
4. loadspeaker structure as claimed in claim 1, wherein said circular geometry structure are circle, hexagon, ellipse, square, rhombus, rectangle, triangle or above combination in any.
5. loadspeaker structure as claimed in claim 1, the distance between the wherein said circular geometry structure equates or is unequal.
6. loadspeaker structure as claimed in claim 1, the graphic structure that wherein said circular geometry structure is respectively closed figure or does not seal.
7. loadspeaker structure as claimed in claim 1, the height of wherein said supporter is consistent or inconsistent.
8. loadspeaker structure as claimed in claim 1, wherein said circular geometry structure is for concentric in fact.
9. loadspeaker structure as claimed in claim 1, wherein said supporter be to adopt the transfer printing mode to be formed on described electrode or the described vibrating diaphragm.
10. loadspeaker structure as claimed in claim 9, wherein said transfer printing mode comprise that ink-jet is printd or screen painting.
11. loadspeaker structure as claimed in claim 1, wherein said supporter be adopt to change the subsides mode to be formed on described electrode or the described vibrating diaphragm.
12. loadspeaker structure as claimed in claim 11, wherein said commentaries on classics subsides mode be described supporter and described vibrating diaphragm or with described electrode sticking or inadhesion.
13. loadspeaker structure as claimed in claim 1, wherein said supporter be to be formed on described electrode or the described vibrating diaphragm via etching mode.
14. loadspeaker structure as claimed in claim 1, wherein said supporter be to be formed on described electrode or the described vibrating diaphragm via the photoresistance exposure visualization way.
15. loadspeaker structure as claimed in claim 1, the material of wherein said vibrating diaphragm, described electrode, described frame supporter and described supporter is the material of transparent and deflection.
16. loadspeaker structure as claimed in claim 1, the material of wherein said electrode are metal material.
17. loadspeaker structure as claimed in claim 1, the material of wherein said electret layer is selected from fluorinated ethylene propylene copolymer (FEP; Fluorinated ethylenepropylene), polytetrafluoroethylene (PTFE; Polytetrafluoethylene), the inferior ethene (PVDF of poly-fluorine; Polyvinylidene fluride) with partly wherein a kind of or its combination of fluoro containing polymers polymer (Fluorine polymer).
18. loadspeaker structure as claimed in claim 1, wherein said circular geometry structure are eccentric configuration.
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| CN200910135002A CN101867859A (en) | 2009-04-15 | 2009-04-15 | Electrostatic loudspeaker |
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| CN200910135002A CN101867859A (en) | 2009-04-15 | 2009-04-15 | Electrostatic loudspeaker |
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| CN103209374A (en) * | 2012-01-16 | 2013-07-17 | 富佑鸿科技股份有限公司 | Planar loudspeaker device |
| CN104602172A (en) * | 2013-10-30 | 2015-05-06 | 北京卓锐微技术有限公司 | Capacitive microphone and preparation method thereof |
| CN104768111A (en) * | 2015-03-31 | 2015-07-08 | 歌尔声学股份有限公司 | Loudspeaker device for restraining polarization and method for adjusting vibrating diaphragm balance position and paraelectric performance |
| CN104822107A (en) * | 2015-03-23 | 2015-08-05 | 马根昌 | All direction open type sound box |
| CN107113503A (en) * | 2014-10-13 | 2017-08-29 | 美商楼氏电子有限公司 | Acoustic equipment with the diaphragm supported at the position of discrete number |
| CN108271108A (en) * | 2016-12-30 | 2018-07-10 | 头领科技（昆山）有限公司 | A kind of electrostatic loudspeaker structure |
| CN109379661A (en) * | 2018-11-29 | 2019-02-22 | 东莞泉声电子有限公司 | Safety-type high-fidelity static earphone |
| CN110858945A (en) * | 2018-08-22 | 2020-03-03 | Dsp集团有限公司 | Electrostatic loudspeaker and method for generating an acoustic signal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103209374A (en) * | 2012-01-16 | 2013-07-17 | 富佑鸿科技股份有限公司 | Planar loudspeaker device |
| CN104602172A (en) * | 2013-10-30 | 2015-05-06 | 北京卓锐微技术有限公司 | Capacitive microphone and preparation method thereof |
| US10887700B2 (en) | 2014-10-13 | 2021-01-05 | Knowles Electronics, Llc | Acoustic apparatus with diaphragm supported at a discrete number of locations |
| CN107113503B (en) * | 2014-10-13 | 2020-04-03 | 美商楼氏电子有限公司 | MEMS acoustic transducer die |
| CN107113503A (en) * | 2014-10-13 | 2017-08-29 | 美商楼氏电子有限公司 | Acoustic equipment with the diaphragm supported at the position of discrete number |
| CN104822107B (en) * | 2015-03-23 | 2018-05-15 | 中山市声雅音响电器有限公司 | The open speaker of omnirange |
| CN104822107A (en) * | 2015-03-23 | 2015-08-05 | 马根昌 | All direction open type sound box |
| CN104768111B (en) * | 2015-03-31 | 2018-01-30 | 歌尔股份有限公司 | Suppress the speaker unit and adjustment vibrating diaphragm equilbrium position and pliable method of polarization |
| CN104768111A (en) * | 2015-03-31 | 2015-07-08 | 歌尔声学股份有限公司 | Loudspeaker device for restraining polarization and method for adjusting vibrating diaphragm balance position and paraelectric performance |
| CN108271108A (en) * | 2016-12-30 | 2018-07-10 | 头领科技（昆山）有限公司 | A kind of electrostatic loudspeaker structure |
| CN108271108B (en) * | 2016-12-30 | 2023-04-07 | 昆山海菲曼科技集团有限公司 | Electrostatic loudspeaker structure |
| CN110858945A (en) * | 2018-08-22 | 2020-03-03 | Dsp集团有限公司 | Electrostatic loudspeaker and method for generating an acoustic signal |
| CN109379661A (en) * | 2018-11-29 | 2019-02-22 | 东莞泉声电子有限公司 | Safety-type high-fidelity static earphone |
| CN109379661B (en) * | 2018-11-29 | 2024-01-09 | 东莞泉声电子有限公司 | Safety high-fidelity electrostatic earphone |
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Application publication date: 20101020 |