CN105554661A - Electro-acoustic conversion apparatus - Google Patents
Electro-acoustic conversion apparatus Download PDFInfo
- Publication number
- CN105554661A CN105554661A CN201610076291.1A CN201610076291A CN105554661A CN 105554661 A CN105554661 A CN 105554661A CN 201610076291 A CN201610076291 A CN 201610076291A CN 105554661 A CN105554661 A CN 105554661A
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- China
- Prior art keywords
- net
- electro
- perforate
- rigid frame
- acoustic conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
The invention discloses an electro-acoustic conversion apparatus which comprises a body, a first net and a second net. The first net and the second net are used for clamping the body between the first net and the second net. According to the electro-acoustic conversion apparatus disclosed by the invention, by additionally arranging a rigid frame between the second net and the body, structural intensity is improved, and a distance between a stationary electricity thin film of the body and an electrode plate is stabilized, so that a sound pressure is stabilized, and a good sound effect is provided; and moreover, the rigid frame is provided with at least one first opening, and the at least one first opening corresponds to at least one sound production unit of the body, so that sound produced by the at least one sound production unit passes through the corresponding first opening to be propagated, and arrangement of the rigid frame cannot influence sound propagation.
Description
Technical field
The present invention describes a kind of electro-acoustic conversion device, espespecially a kind of electrostatic electroacoustic conversion equipment.
Background technology
Conventional loudspeakers, according to its type of drive, is mainly distinguished into coil-moving speaker, piezo-electric loudspeaker and electrostatic loudspeaker.The interaction that coil-moving speaker mainly utilizes magnetic field, electric current and power three to intersect at a right angle, the piston type controlling vibrating membrane moves repeatedly, because volume cannot reduce, then makes it cannot meet future products for lightening demand.Piezo-electric loudspeaker utilizes piezoelectric effect, when an electric field puts on piezoelectric, can make piezoelectric material deforms, and then promotes vibrating diaphragm sounding, but resonance frequency needed for piezoelectric is higher and the frequency range utilized is not enough, and therefore, applicable field is limited.And the principle of electrostatic loudspeaker is that clamping one in the middle of two holed battery lead plates is stayed conductive film to form a kind of structure of similar capacitor, by supply conductive diaphragm direct current (DC) bias, and supply two synchronous positive and negative cross streams voltages of battery lead plate respectively, and by the electrostatic force that positive and negative charge produces, drive this conductive diaphragm and acoustic radiating is gone out.The conductive diaphragm that electrostatic loudspeaker uses is very frivolous, has that transient state reaction is fast, resolution is high, distortion is low and not by advantages such as electromagnetic effects.
But the structural strength of existing electrostatic loudspeaker is not enough, cause the spacing of staying conductive film and battery lead plate unstable, cause acoustic pressure variability large, audio is poor.
Therefore, be necessary to provide a kind of new electro-acoustic conversion device, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of electro-acoustic conversion device, structural strength is high, and acoustic pressure is more stable.
For reaching above-mentioned purpose, the invention provides a kind of electro-acoustic conversion device, comprising:
Body, comprises at least one phonation unit, and this at least one phonation unit is used for electroacoustic conversion and sounding;
Rigid frame, is arranged towards this body;
First net and the second net, this first net is arranged at first side of this body away from this rigid frame, this second net is arranged at second side of this rigid frame away from this body, and this first net and this second net be used for this body and this rigid frame to be folded in this first net and this second net between;
Wherein, this rigid frame has at least one first perforate, and this at least one at least one phonation unit of the first perforate and this is corresponding, and the sound sent to make this at least one phonation unit is propagated through the first corresponding perforate.
Preferably, the first net and the second net are made up of metal material.
Preferably, this first net and the equal ground connection of the second net.
Preferably, this rigid frame is made up of metal material.
Preferably, also comprise the first insulating barrier, this first insulating barrier is arranged between this first net and this body, and this first insulating barrier has at least one second perforate, this at least one at least one phonation unit of the second perforate and this is corresponding, and the sound sent to make this at least one phonation unit is propagated through the second corresponding perforate.
Preferably, this first insulating barrier is fixedly connected with this first net by least one first fixture.
Preferably, also comprise the second insulating barrier, this second insulating barrier is arranged between this body and this rigid frame, and this second insulating barrier has at least one the 3rd perforate, this at least one the 3rd at least one phonation unit of perforate and this is corresponding, and the sound sent to make this at least one phonation unit is propagated through the 3rd corresponding perforate.
Preferably, between this first net and this body, padded coaming is set.
Preferably, the size of this at least one the first perforate and this at least one phonation unit or mating shapes.
Preferably, this body comprise the first sequentially stacked electrode network, the first isolation structure, in conductive film, the second isolation structure and the second electrode network, this first isolation structure and this second isolation structure are respectively used to control this and stay conductive film and this first electrode network and the distance between this body and this second electrode network, the side of this first electrode network and this second electrode network adopts adhesive tape coated, clamps this first isolation structure to make this first electrode network and this second electrode network, should stay conductive film and this second isolation structure.
Compared with prior art, the invention provides a kind of electro-acoustic conversion device, comprise body, the first net and the second net, this first net and this second net be used for this body to be folded in this first net and this second net between, the present invention, by setting up rigid frame between this second net and this body, to improve structural strength, stablizes the distance of staying between conductive film and battery lead plate of this body, and then stable acoustic pressure, good audio is provided; And, this rigid frame has at least one first perforate, this at least one first perforate is corresponding with at least one phonation unit of this body, the sound sent to make this at least one phonation unit is propagated through the first corresponding perforate, makes the setting of this rigid frame can not have influence on the propagation of sound.
Accompanying drawing explanation
Fig. 1 is the structural representation of the electro-acoustic conversion device of first embodiment of the invention.
Fig. 2 is the structural representation of the electro-acoustic conversion device of second embodiment of the invention.
Fig. 3 is the structural representation of the electro-acoustic conversion device of third embodiment of the invention.
Fig. 4 is the structural representation of the electro-acoustic conversion device of fourth embodiment of the invention.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Shown in Fig. 4, disclose the structural representation of electro-acoustic conversion device 100 of the present invention.Fig. 1 is first embodiment of the invention electro-acoustic conversion device 100 structural representation, Fig. 2 is second embodiment of the invention electro-acoustic conversion device 100 structural representation, Fig. 3 is the structural representation of third embodiment of the invention electro-acoustic conversion device 100, and Fig. 4 is the structural representation of fourth embodiment of the invention electro-acoustic conversion device 100.Electro-acoustic conversion device 100 of the present invention is electrostatic electroacoustic conversion equipment, but not as limit.This electro-acoustic conversion device 100 comprises body 11, rigid frame 12, first net 13 and the second net 14, in the present invention, body 11 is electret electrostatic loudspeaker (EFL:ElectretsFilmLoudspeaker), its primary structure stays conductive film by clamping in the middle of two electrode networks, when needing to sound, the homophase utilizing AC power to export or backward crossover fluid sound news voltage, the AC bias imposed on respectively between two electrode networks provides the electric field driving this vibration in conductive film, be somebody's turn to do vibration in conductive film and sound, therefore when there not being the combination of any strutting piece, single body 11 receives when AC power exports message voltage independently to pronounce.This body 11 comprises at least one phonation unit 111, and this at least one phonation unit 111 is for changing and sounding because of electroacoustic.This rigid frame 12 is arranged towards this body 11.This first net 13 is arranged at first side 112 of this body 11 away from this rigid frame 12, this second net 14 is arranged at second side 121 of this rigid frame 12 away from this body 11, and this first net 13 and this second net 14 are for being folded in this body 11 and this rigid frame 12 between this first net 13 and this second net 14.Wherein, this rigid frame 12 has at least one first perforate 122, and this at least one at least one phonation unit 111 of the first perforate 122 and this is corresponding, and the sound sent to make this at least one phonation unit 111 is propagated through the first corresponding perforate 122.So, the present invention, by arranging rigid frame 12 between this body 11 and this second net 14, to improve structural strength, stablizes the distance of staying between conductive film and battery lead plate in this body 11, and then realizes stablizing acoustic pressure, provide good audio; Further, this rigid frame 12 is offered the first perforate 122 and propagates via this first perforate 122 with the sound making the phonation unit 111 of this body 11 and send, therefore, the setting of this rigid frame 12 can't affect the propagation of the sound that phonation unit sends.
Preferably, the first net 13 and the second net 14 are by metal material, and such as iron or stainless steel material are made, to improve intensity, but not as limit.Further, because metal material can produce electrostatic, and electrostatic can produce noise, and therefore, this first net 13 and this second net 14 all ground connection, to eliminate electrostatic, and then eliminates noise, improve audio.Certainly, in other embodiments, this first net 13 and this second net 14 can also be made up of nonmetallic materials, are specifically determined according to actual conditions by designer, do not repeat them here.
Further, this rigid frame 12 is made up of the good material of rigidity, such as this rigid frame 12 is made up of metal material, to improve the structural strength of this electro-acoustic conversion device 100, and then improve the stability of acoustic pressure of this electro-acoustic conversion device 100, but not as limit, specifically determined according to actual conditions by designer, do not repeat them here.
In practical application, as shown in Figure 2, also comprise the first insulating barrier 15, this first insulating barrier 15 is arranged between this first net 13 and this body 11, in case leak-stopping is electric, improve fail safe, and this first insulating barrier 15 has at least one second perforate 151, this at least one at least one phonation unit 111 of the second perforate 151 and this is corresponding, the sound sent to make this at least one phonation unit 111 is propagated through the second corresponding perforate 151, that is, this first insulating barrier 15 add the propagation not affecting sound.Further, this first insulating barrier 15 is fixedly connected with this first net 13 by least one first fixture 152, to improve constant intensity and stability.Such as, this first fixture 152 is clamping structure, paste, screw, but not as limit, as long as can fixation be played.
Further, as shown in Figure 3, also comprise the second insulating barrier 16, this second insulating barrier 16 is arranged between this body 11 and this rigid frame 12, in case leak-stopping is electric, improve fail safe, and this second insulating barrier has at least one the 3rd perforate 161, this at least one at least one phonation unit 111 of the 3rd perforate 161 and this is corresponding, and the sound sent to make this at least one phonation unit 111 is propagated through the 3rd corresponding perforate 161, that is, this second insulating barrier 16 add the propagation not affecting sound.Preferably, this first insulating barrier 15 and this second insulating barrier 16 are made up of plastic material or elastomeric material, but not as limit.It should be noted that, this electro-acoustic conversion device 100 both can arrange separately this first insulating barrier 15 or this second insulating barrier 16 (as shown in Figure 4), also can have the first insulating barrier 15 and the second insulating barrier 16 simultaneously, specifically determined according to actual conditions by designer, do not repeat them here.
In order to improve sounding effect further, between this first net 13 and this body 11, padded coaming is set, with the impact of buffer voice.Wherein, this padded coaming can be sponge, but not as limit.Certainly, between this rigid frame 12 and this body 11, can also padded coaming be set, also cushions the impact from opposite side sound, specifically determined according to actual conditions by designer.
Further, the size of this first perforate 122 and this phonation unit 111 or mating shapes, to improve structural strength as far as possible and not affect the propagation of sound, but not as limit.Further, the size of this second perforate 151 and this phonation unit 111 or mating shapes, not affect the propagation of sound while improving the effect that prevents from leaking electricity, but not as limit.Further, the size of the 3rd perforate 161 and this phonation unit 111 or mating shapes, not affect the propagation of sound while improving the effect that prevents from leaking electricity, but not as limit.
Further, this second insulating barrier 16 is supporting structure, and this rigid frame 12 is frame structure, but not as limit.Certainly, in other embodiment, this second insulating barrier 16 is frame structure, and this rigid frame 12 is supporting structure, is specifically determined according to actual conditions by designer.
Further, this body 11 comprise the first sequentially stacked electrode network, the first isolation structure, in conductive film, the second isolation structure and the second electrode network, this first isolation structure and this second isolation structure are respectively used to control this and stay conductive film and this first electrode network and be somebody's turn to do the distance of staying between conductive film and this second electrode network, the side of this first electrode network and this second electrode network adopts adhesive tape coated, clamps this first isolation structure to make this first electrode network and this second electrode network, should stay conductive film and this second isolation structure.
Further, this first isolation structure is framework, and this second isolation structure is also framework, is separated into multiple sound-emanating areas, i.e. multiple phonation unit 111 for the sounding face of this being stayed conductive film 115.In the present embodiment, this body 11 has 12 phonation units 111, and these 12 phonation units 111 lay respectively at the relative both sides of this body 11, wherein be positioned at 6 phonation units 111 of this body 11 wherein side towards this first net 13, be positioned at other 6 phonation units 111 of opposite side towards this rigid frame 12, but not as limit.Further, the perforate on this first isolation structure 114 is corresponding with the perforate on this second isolation structure 116, but not as limit.
Further, in order to this electro-acoustic conversion device 100 of thinning, the thickness of each element can be as far as possible smaller, and such as, the thickness of this first insulating barrier 15 is 0.5mm, the thickness of this rigid frame 12 is 1mm, this second insulating barrier 16 is 0.8mm, and the thickness of this body 11 is 1.5mm, but not as limit, specifically determined according to actual conditions by designer, do not repeat them here.
To sum up, the invention provides a kind of electro-acoustic conversion device, comprise body, the first net and the second net, this first net and this second net be used for this body to be folded in this first net and this second net between, the present invention, by setting up rigid frame between this second net and this body, to improve structural strength, stablizes this in the distance between conductive film and battery lead plate, and then stable acoustic pressure, good audio is provided; And, this rigid frame has at least one first perforate, this at least one first perforate is corresponding with at least one phonation unit of this body, the sound sent to make this at least one phonation unit is propagated through the first corresponding perforate, makes the setting of this rigid frame can not have influence on the propagation of sound.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (10)
1. an electro-acoustic conversion device, is characterized in that, comprises:
Body, comprises at least one phonation unit, and this at least one phonation unit is used for electroacoustic conversion and sounding;
Rigid frame, is arranged towards this body;
First net and the second net, this first net is arranged at first side of this body away from this rigid frame, this second net is arranged at second side of this rigid frame away from this body, and this first net and this second net be used for this body and this rigid frame to be folded in this first net and this second net between;
Wherein, this rigid frame has at least one first perforate, and this at least one at least one phonation unit of the first perforate and this is corresponding, and the sound sent to make this at least one phonation unit is propagated through the first corresponding perforate.
2. electro-acoustic conversion device as claimed in claim 1, it is characterized in that, the first net and the second net are made up of metal material.
3. electro-acoustic conversion device as claimed in claim 2, is characterized in that, this first net and the equal ground connection of the second net.
4. electro-acoustic conversion device as claimed in claim 1, it is characterized in that, this rigid frame is made up of metal material.
5. electro-acoustic conversion device as claimed in claim 1, it is characterized in that, also comprise the first insulating barrier, this first insulating barrier is arranged between this first net and this body, and this first insulating barrier has at least one second perforate, this at least one at least one phonation unit of the second perforate and this is corresponding, and the sound sent to make this at least one phonation unit is propagated through the second corresponding perforate.
6. electro-acoustic conversion device as claimed in claim 5, it is characterized in that, this first insulating barrier is fixedly connected with this first net by least one first fixture.
7. the electro-acoustic conversion device as described in claim 1 or 5, it is characterized in that, also comprise the second insulating barrier, this second insulating barrier is arranged between this body and this rigid frame, and this second insulating barrier has at least one the 3rd perforate, this at least one the 3rd at least one phonation unit of perforate and this is corresponding, and the sound sent to make this at least one phonation unit is propagated through the 3rd corresponding perforate.
8. electro-acoustic conversion device as claimed in claim 1, is characterized in that, arrange padded coaming between this first net and this body.
9. electro-acoustic conversion device as claimed in claim 1, is characterized in that, the size of this at least one the first perforate and this at least one phonation unit or mating shapes.
10. electro-acoustic conversion device as claimed in claim 1, it is characterized in that, this body comprises the first sequentially stacked electrode network, first isolation structure, in conductive film, second isolation structure and the second electrode network, this first isolation structure and this second isolation structure are respectively used to control this and stay conductive film and this first electrode network and the distance between this body and this second electrode network, the side of this first electrode network and this second electrode network adopts adhesive tape coated, this the first isolation structure is clamped to make this first electrode network and this second electrode network, conductive film and this second isolation structure should be stayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610076291.1A CN105554661B (en) | 2016-02-03 | 2016-02-03 | Electro-acoustic conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610076291.1A CN105554661B (en) | 2016-02-03 | 2016-02-03 | Electro-acoustic conversion device |
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| Publication Number | Publication Date |
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| CN105554661A true CN105554661A (en) | 2016-05-04 |
| CN105554661B CN105554661B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610076291.1A Active CN105554661B (en) | 2016-02-03 | 2016-02-03 | Electro-acoustic conversion device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121701A1 (en) * | 2016-12-30 | 2018-07-05 | 头领科技（昆山）有限公司 | Electrostatic speaker structure |
| CN109165002A (en) * | 2018-07-09 | 2019-01-08 | Oppo广东移动通信有限公司 | Screen vocal technique, device, electronic device and storage medium |
| CN110604925A (en) * | 2018-06-15 | 2019-12-24 | 龙门县佳茂聚氨酯橡胶有限公司 | Conductive sound effect building block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200623931A (en) * | 2004-12-20 | 2006-07-01 | Ind Tech Res Inst | Electrostatic electro-acoustic transducer |
| JP2007208588A (en) * | 2006-02-01 | 2007-08-16 | Citizen Electronics Co Ltd | Condenser microphone and manufacturing method therefor |
| CN103313173A (en) * | 2012-03-09 | 2013-09-18 | 台湾驻极体电子股份有限公司 | Packaging structure of electret electroacoustic conversion device |
-
2016
- 2016-02-03 CN CN201610076291.1A patent/CN105554661B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200623931A (en) * | 2004-12-20 | 2006-07-01 | Ind Tech Res Inst | Electrostatic electro-acoustic transducer |
| JP2007208588A (en) * | 2006-02-01 | 2007-08-16 | Citizen Electronics Co Ltd | Condenser microphone and manufacturing method therefor |
| CN103313173A (en) * | 2012-03-09 | 2013-09-18 | 台湾驻极体电子股份有限公司 | Packaging structure of electret electroacoustic conversion device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018121701A1 (en) * | 2016-12-30 | 2018-07-05 | 头领科技（昆山）有限公司 | Electrostatic speaker structure |
| CN110604925A (en) * | 2018-06-15 | 2019-12-24 | 龙门县佳茂聚氨酯橡胶有限公司 | Conductive sound effect building block |
| CN109165002A (en) * | 2018-07-09 | 2019-01-08 | Oppo广东移动通信有限公司 | Screen vocal technique, device, electronic device and storage medium |
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| Publication number | Publication date |
|---|---|
| CN105554661B (en) | 2018-10-12 |
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