CN105554661B - Electro-acoustic conversion device - Google Patents
Electro-acoustic conversion device Download PDFInfo
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- CN105554661B CN105554661B CN201610076291.1A CN201610076291A CN105554661B CN 105554661 B CN105554661 B CN 105554661B CN 201610076291 A CN201610076291 A CN 201610076291A CN 105554661 B CN105554661 B CN 105554661B
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- net
- ontology
- trepanning
- electro
- conversion device
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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 present invention discloses a kind of electro-acoustic conversion device, including ontology, the first net and the second net, first net and second net are used to the ontology being folded between first net and second net, the present invention between second net and the ontology by adding rigid frame, to improve structural strength, that stablizes the ontology stays the distance between conductive film and electrode plate, and then stablizes acoustic pressure, provides preferable audio；And, the rigid frame has at least one first trepanning, at least one first trepanning is corresponding at least one phonation unit of the ontology, so that the sound that at least one phonation unit is sent out is propagated across corresponding first trepanning so that the setting of the rigid frame does not interfere with the propagation of sound.
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 are mainly distinguished into coil-moving speaker, piezo-electric loudspeaker and electrostatic raise according to its type of drive
Sound device.The interaction that coil-moving speaker is mainly intersected at a right angle using magnetic field, electric current and power three, controls vibrating membrane
Piston type moves repeatedly, because volume can not reduce, makes it that can not meet future products for lightening demand then.Piezoelectric type is raised
Sound device can be such that piezoelectric material deforms using piezoelectric effect when an electric field is applied to piezoelectric material, and then push vibrating diaphragm sounding,
However resonant frequency needed for piezoelectric material is higher and the bandwidth that utilizes is insufficient, therefore, applicable field is limited.And it is electrostatic
The principle of loud speaker is that clamping one among two holed electrode plates is stayed conductive film to form a kind of knot of similar capacitor
Structure by supplying conductive diaphragm Dc bias, and is supplied respectively to two electrode plates and synchronizes positive backward crossover galvanic electricity pressure, and by positive and negative
Electrostatic force caused by charge drives the conductive diaphragm and acoustic radiating is gone out.Conduction used in electrostatic loudspeaker is shaken
Film is extremely frivolous, has many advantages, such as that transient state reaction fast, high resolution, distortion are low and not by electromagnetic effect.
But the structural strength of existing electrostatic loudspeaker is insufficient, causes in distance between conductive film and electrode plate not
Stablize, causes acoustic pressure variability big, audio is poor.
Therefore, it is necessary to a kind of new electro-acoustic conversion device be provided, to overcome drawbacks described above.
Invention content
The purpose of the present invention is to provide a kind of electro-acoustic conversion devices, and structural strength is high, and acoustic pressure is relatively stablized.
In order to achieve the above object, the present invention provides a kind of electro-acoustic conversion device, including：
Ontology, including at least one phonation unit, at least one phonation unit is for electroacoustic conversion and sounding；
Rigid frame is arranged towards the ontology；
First net and the second net, first net are set to first side of the ontology far from the rigid frame, which sets
It is placed in the second side of the rigid frame far from the ontology, and first net is used for second net by the ontology and the rigid frame
It is folded between first net and second net；
Wherein, which has at least one first trepanning, at least one first trepanning and at least one hair
Sound unit is corresponding, so that the sound that at least one phonation unit is sent out is propagated across corresponding first trepanning.
Preferably, the first net and the second net are made of metal material.
Preferably, first net and the second net are grounded.
Preferably, the rigid frame is made of metal material.
Preferably, further including the first insulating layer, which is set between first net and the ontology, and this
One insulating layer has at least one second trepanning, and at least one second trepanning is corresponding at least one phonation unit, with
The sound that at least one phonation unit is sent out is set to be propagated across corresponding second trepanning.
Preferably, first insulating layer is fixedly connected by least one first fixing piece with first net.
Preferably, further including second insulating layer, which is set between the ontology and the rigid frame, and should
Second insulating layer has at least one third trepanning, and at least one third trepanning is corresponding at least one phonation unit,
So that the sound that at least one phonation unit is sent out is propagated across corresponding third trepanning.
Preferably, padded coaming is arranged between first net and the ontology.
Preferably, at least one first trepanning and the size or shape of at least one phonation unit match.
Preferably, the ontology includes sequentially stacked first electrode net, the first isolation structure, stays conductive film, the second isolation
Structure and second electrode net, first isolation structure and second isolation structure be respectively used to control should stay conductive film and this
It adopts the side of one electrode network and the distance between the ontology and the second electrode net, the first electrode net and the second electrode net
Coated with adhesive tape so that the first electrode net and the second electrode network folder hold first isolation structure, should in conductive film and this
Two isolation structures.
Compared with prior art, the present invention provides a kind of electro-acoustic conversion device, including ontology, the first net and the second net, it should
First net and second net are used to the ontology being folded between first net and second net, and the present invention passes through in second net
Add rigid frame between the ontology, to improve structural strength, stablize the ontology stay between conductive film and electrode plate away from
From, and then stablize acoustic pressure, preferable audio is provided；Also, the rigid frame has at least one first trepanning, this is at least one
First trepanning is corresponding at least one phonation unit of the ontology, so that the sound that at least one phonation unit is sent out passes through
Corresponding first trepanning is propagated so that the setting of the rigid frame does not interfere with the propagation of sound.
Description of the drawings
Fig. 1 is the structural schematic diagram of the electro-acoustic conversion device of first embodiment of the invention.
Fig. 2 is the structural schematic diagram of the electro-acoustic conversion device of second embodiment of the invention.
Fig. 3 is the structural schematic diagram of the electro-acoustic conversion device of third embodiment of the invention.
Fig. 4 is the structural schematic diagram of the electro-acoustic conversion device of fourth embodiment of the invention.
Specific implementation mode
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment detailed
It is described as follows.
Shown in Fig. 4, the structural schematic diagram of electro-acoustic conversion device 100 of the present invention is disclosed.Fig. 1 is the present invention
100 structural schematic diagram of first embodiment electro-acoustic conversion device, Fig. 2 are 100 structure of second embodiment of the invention electro-acoustic conversion device
Schematic diagram, Fig. 3 are the structural schematic diagram of third embodiment of the invention electro-acoustic conversion device 100, and Fig. 4 is fourth embodiment of the invention
The structural schematic diagram of electro-acoustic conversion device 100.Electro-acoustic conversion device 100 of the present invention be electrostatic electroacoustic conversion equipment, but not with
This is limited.The electro-acoustic conversion device 100 includes ontology 11, rigid frame 12, the first net 13 and the second net 14, in of the invention,
Ontology 11 is electret electrostatic loudspeaker (EFL:Electrets Film Loudspeaker), primary structure is by two electrodes
Conductive film is stayed in the intermediate clamping of net, and when to need to make a sound, electricity is interrogated using the same phase or backward crossover fluid sound of AC power output
Pressure, the AC bias imposed on respectively between two electrode networks provide the electric field for driving the vibration in conductive film, should shake in conductive film
It moves and makes a sound, therefore when not there is the combination of any support element, single ontology 11 receives AC power output message electricity
Can independently it pronounce when pressure.The ontology 11 include at least one phonation unit 111, at least one phonation unit 111 be used for because
Electroacoustic conversion and sounding.The rigid frame 12 is arranged towards the ontology 11.It is rigid far from this that first net 13 is set to the ontology 11
Property frame 12 the first side 112, which is set to the second side 121 of the rigid frame 12 far from the ontology 11, and should
First net 13 is used to the ontology 11 and the rigid frame 12 being folded in first net 13 and second net 14 with second net 14
Between.Wherein, the rigid frame 12 have at least one first trepanning 122, at least one first trepanning 122 with this at least one
A phonation unit 111 is corresponding, so that the sound that at least one phonation unit 111 is sent out passes through corresponding first trepanning 122
It propagates.In this way, the present invention by between the ontology 11 and second net 14 be arranged rigid frame 12, to improve structural strength,
Stablize in the ontology 11 and stay the distance between conductive film and electrode plate, and then realize and stablize acoustic pressure, preferable audio is provided；And
And the first trepanning 122 is opened up on the rigid frame 12 so that the sound that sends out of the phonation unit 111 of the ontology 11 via this
One trepanning 122 is propagated, and therefore, the setting of the rigid frame 12 can't influence the propagation for the sound that phonation unit is sent out.
Preferably, the first net 13 and the second net 14 are made of metal material, such as iron or stainless steel material, it is strong to improve
Degree, but not limited to this.Further, since metal material will produce electrostatic, and electrostatic will produce noise, and therefore, this first
Net 13 and second net 14 are grounded, and to eliminate electrostatic, and then are eliminated noise, are improved audio.Certainly, in other embodiment,
First net 13 and second net 14 can also be made of nonmetallic materials, specifically by designer according to actual conditions and
Fixed, details are not described herein.
Further, which is made of the preferable material of rigidity, such as the rigid frame 12 is by metal material
It is made, to improve the structural strength of the electro-acoustic conversion device 100, and then improves the stabilization of the acoustic pressure of the electro-acoustic conversion device 100
Property, but not limited to this, and specifically by designer depending on actual conditions, details are not described herein.
In practical application, as shown in Fig. 2, further include the first insulating layer 15, first insulating layer 15 be set to this first
Between net 13 and the ontology 11, to prevent from leaking electricity, safety is improved, and first insulating layer 15 has at least one second trepanning
151, at least one second trepanning 151 is corresponding at least one phonation unit 111, so that at least one phonation unit
111 sound sent out are propagated across corresponding second trepanning 151, that is, the addition of first insulating layer 15 does not influence the biography of sound
It broadcasts.Further, which is fixedly connected by least one first fixing piece 152 with first net 13, to carry
High fixing intensity and stability.For example, first fixing piece 152 is clamping structure, paste, screw, but not limited to this, only
It wants that fixed function can be played.
Further, as shown in figure 3, further including second insulating layer 16, which is set to 11 He of ontology
Between the rigid frame 12, to prevent from leaking electricity, safety is improved, and the second insulating layer has at least one third trepanning 161,
At least one third trepanning 161 is corresponding at least one phonation unit 111, so that at least one phonation unit 111
The sound sent out is propagated across corresponding third trepanning 161, that is, the addition of the second insulating layer 16 does not influence the propagation of sound.
Preferably, first insulating layer 15 and the second insulating layer 16 are made of plastic material or rubber material, but not limited to this.
It should be strongly noted that first insulating layer 15 or second insulation can be both separately provided in the electro-acoustic conversion device 100
16 (as shown in Figure 4) of layer, can also have the first insulating layer 15 and second insulating layer 16, specifically by designer according to reality simultaneously
Depending on the situation of border, details are not described herein.
In order to further increase sounding effect, padded coaming is set between first net 13 and the ontology 11, to buffer sound
The impact of sound.Wherein, which can be sponge, and but not limited to this.Certainly, in the rigid frame 12 and the ontology
Padded coaming can also be set between 11, also buffer the impact from other side sound, specifically by designer according to practical feelings
Depending on condition.
Further, first trepanning 122 and the size or shape of the phonation unit 111 match, to carry as far as possible
High structural strength and the propagation for not influencing sound, but not limited to this.Further, second trepanning 151 and the phonation unit
111 size or shape matches, and prevents from not influencing the propagation of sound while electric leakage effect to improve, but not as
Limit.Further, the size or shape of the third trepanning 161 and the phonation unit 111 match, to improve anti-leak-stopping
The propagation of sound is not influenced while electric effect, but not limited to this.
Further, the second insulating layer 16 be supporting structure, the rigid frame 12 be frame structure, but not as
Limit.Certainly, in other embodiments, the second insulating layer 16 be frame structure, the rigid frame 12 be supporting structure, specifically by
Designer is depending on actual conditions.
Further, which includes the first electrode net being sequentially stacked, the first isolation structure, stays conductive film, second
Isolation structure and second electrode net, first isolation structure and second isolation structure be respectively used to control should stay conductive film and
The first electrode net and the distance between conductive film and the second electrode net, the first electrode net and the second electrode net should be stayed
Side coated using adhesive tape so that the first electrode net and the second electrode network folder are held, first isolation structure, should to stay electricity thin
Film and second isolation structure.
Further, which is frame, which is also frame, for that should stay conductive film
115 sounding face is separated into multiple sound-emanating areas, i.e. multiple phonation units 111.In the present embodiment, which has 12 hairs
Sound unit 111, and 12 phonation units 111 are located at the opposite sides of the ontology 11, wherein wherein positioned at the ontology 11
6 phonation units 111 of side are located at other 6 phonation units 111 of opposite side towards the rigid frame towards first net 13
Frame 12, but not limited to this.Further, the trepanning on first isolation structure 114 and opening on second isolation structure 116
Hole is corresponding, and but not limited to this.
Further, for the thinning electro-acoustic conversion device 100, the thickness of each element can be smaller as possible, for example, should
The thickness of first insulating layer 15 is 0.5mm, and the thickness of the rigid frame 12 is 1mm, which is 0.8mm, this
The thickness of body 11 is 1.5mm, and but not limited to this, and specifically by designer depending on actual conditions, details are not described herein.
To sum up, the present invention provides a kind of electro-acoustic conversion device, includes ontology, the first net and the second net, first net and this
Second net is used to the ontology being folded between first net and second net, the present invention by second net and the ontology it
Between add rigid frame, to improve structural strength, the distance between conductive film and electrode plate should be stayed by stablizing, and then stablize acoustic pressure,
Preferable audio is provided；Also, the rigid frame has at least one first trepanning, at least one first trepanning and the ontology
At least one phonation unit it is corresponding so that the sound that sends out of at least one phonation unit is passed across corresponding first trepanning
It broadcasts so that the setting of the rigid frame does not interfere with the propagation of sound.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only the example for implementing the present invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
It is changed and retouched made by range, belongs to the scope of patent protection of the present invention.
Claims (10)
1. a kind of electro-acoustic conversion device, which is characterized in that include：
Ontology, including at least one phonation unit, at least one phonation unit is for electroacoustic conversion and sounding；
Rigid frame is arranged towards the ontology；
First net and the second net, first net are set to first side of the ontology far from the rigid frame, which is set to
The second side of the rigid frame far from the ontology, and first net and second net be used for the ontology and the rigid frame is sandwiched
Between first net and second net；
Wherein, which has at least one first trepanning, at least one first trepanning and at least one sounding list
Member is corresponding, so that the sound that at least one phonation unit is sent out is propagated across corresponding first trepanning.
2. electro-acoustic conversion device as described in claim 1, which is characterized in that the first net and the second net are made of metal material.
3. electro-acoustic conversion device as claimed in claim 2, which is characterized in that first net and the second net are grounded.
4. electro-acoustic conversion device as described in claim 1, which is characterized in that the rigid frame is made of metal material.
5. electro-acoustic conversion device as described in claim 1, which is characterized in that further include the first insulating layer, first insulating layer
It is set between first net and the ontology, and first insulating layer has at least one second trepanning, this at least one second
Trepanning is corresponding at least one phonation unit, so that the sound that at least one phonation unit is sent out passes through corresponding second
Trepanning is propagated.
6. electro-acoustic conversion device as claimed in claim 5, which is characterized in that first insulating layer is solid by least one first
Determine part to be fixedly connected with first net.
7. the electro-acoustic conversion device as described in claim 1 or 5, which is characterized in that further include second insulating layer, this second absolutely
Edge layer is set between the ontology and the rigid frame, and the second insulating layer has at least one third trepanning, this at least one
A third trepanning is corresponding at least one phonation unit, so that the sound that at least one phonation unit is sent out is passed through and corresponded to
Third trepanning propagate.
8. electro-acoustic conversion device as described in claim 1, which is characterized in that fender is arranged between first net and the ontology
Material.
9. electro-acoustic conversion device as described in claim 1, which is characterized in that at least one first trepanning is at least one with this
The size or shape of phonation unit match.
10. electro-acoustic conversion device as described in claim 1, which is characterized in that the ontology includes sequentially stacked first electrode
Net, the first isolation structure, stay conductive film, the second isolation structure and second electrode net, first isolation structure and this second every
Conductive film and the first electrode net and the distance between the ontology and the second electrode net should be stayed by being respectively used to control from structure,
The side of the first electrode net and the second electrode net is coated using adhesive tape, so that the first electrode net and the second electrode network folder
It holds first isolation structure, conductive film and 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 CN105554661A (en) | 2016-05-04 |
| CN105554661B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108271108B (en) * | 2016-12-30 | 2023-04-07 | 昆山海菲曼科技集团有限公司 | Electrostatic loudspeaker 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 |
| CN109165002B (en) * | 2018-07-09 | 2022-01-11 | Oppo广东移动通信有限公司 | Screen sounding method, device, electronic device and storage medium |
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 |
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