CN208821082U - A kind of piezoelectric nano film sound system based on amplifying circuit - Google Patents
A kind of piezoelectric nano film sound system based on amplifying circuit Download PDFInfo
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- CN208821082U CN208821082U CN201821853903.4U CN201821853903U CN208821082U CN 208821082 U CN208821082 U CN 208821082U CN 201821853903 U CN201821853903 U CN 201821853903U CN 208821082 U CN208821082 U CN 208821082U
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- piezoelectric nano
- nano film
- module
- film
- amplifying circuit
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Abstract
The utility model provides a kind of piezoelectric nano film sound system based on amplifying circuit.The system includes Audio Input Modules, power amplifier module, piezoelectric nano film sound module and peripheral hardware supplementary module.Audio Input Modules are by the electric signal access system of input audio.And it is output to power amplifier module, the power of input audio electric signal is further amplified.Amplified audio electrical signal is applied to piezoelectric nano film sound module the two poles of the earth and restores original audio so as to cause the thin vibration of membrane of piezoelectric nano.Peripheral hardware supplementary module mainly provides a system to the additional devices such as necessary power supply, conducting wire.The sound system can be used as micro-nano system speaker, and after amplification module amplifies, the sound restored is more clear audio electrical signal power, and have many advantages, such as small required operatic tunes, low in energy consumption, high-efficient, good heat dissipation, service life length, electromagnetic-radiation-free.
Description
Technical field
The utility model relates to sound systems, more particularly to a kind of piezoelectric nano film sound source system based on amplifying circuit
System.
Background technique
Piezoelectric speaker is a kind of function element for electric signal being transformed into acoustical signal, in recent years, with microcosmic nanometer
The exploitation and application of system and its device, various electronic devices be also required to it is thinning, become smaller and higher integrated level.The pressure of macroscopic view
Electric loudspeaker volume is larger, weight is heavy and is macro-size, is difficult to meet the application of micro-system device.Microcosmic carbon nanotube heat is thin
The principle of film loudspeaker is to drive the vibration of surrounding air with compression according to the expansion of film by utilizing AC electric-heating film
It is dynamic, further generate sound wave.Although it is excellent that carbon nanocapsule thin film has that transparent, light weight, unit area thermal capacitance are low and plasticity is strong etc.
Point.But its sounding will appear frequency distortion, generate heat, to greatly limit its application prospect.
To solve macroscopical scale of piezoelectric speaker and the heat and problem of dtmf distortion DTMF of carbon nanotube loudspeaker, one kind is now developed
It can be applied to the piezoelectric nano sound system of microsystem organization.The principle of the system sounding is similar to macroscopical piezoelectric speaker,
But microcosmic piezoelectric nano material is used, to reduce the dimensional attributes of system.It is different from microcosmic hot film again simultaneously to raise
Sound device will not generate unnecessary heat, not need radiator more.
Utility model content
The purpose of the utility model is to provide a kind of piezoelectric nano film sound system based on amplifying circuit has nanometer
Scale will not generate unnecessary heat, be not necessarily to the characteristics of cooling system, so as to be answered extensively under micro-scale
With.
In order to achieve the above objectives, the embodiment of the present application provides a kind of piezoelectric nano film sound source system based on amplifying circuit
System comprising Audio Input Modules, power amplifier module, piezoelectric nano film sound module and peripheral hardware supplementary module.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the Audio Input Modules
Including audio interface, anode and cathode filter capacitor.The Audio interface block is received from extraneous audio signal.It is described negative
Pole filter capacitor is connected between audio interface cathode and ground wire, filters negative DC noise.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the power amplifier module
Including LED light, shunt divider resistance, N ditch field-effect tube, triode.The power amplifier module, the audio input mould
Block is connect with the positive filter capacitor, and the anode filter capacitor filters out positive DC wave noise, thus by effective audio-frequency electric
Signal accesses the power amplifier module as input signal, increases the power of effective audio signal.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the LED light are used
In the starting of instruction system or closed state.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the shunting divider resistance
For redistributing the voltage of electric elements and dividing electric current, electronic component is protected.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the piezoelectric nano film
Sound module includes piezoelectric nano film, electrode, graphene film, insulating base.Paste the insulation board in the electrode side
On, because the piezoelectric nano film is easy to be coated on the graphene film, the graphene film is first applied and is connect in the electricity
On extremely, the piezoelectric nano film is applied and is connect on the graphene film, to guarantee the voltage of access piezoelectric nano film
It is relatively uniform.The sound amplification film middle section is sticked together with piezoelectric nano film painting, the amplification film
One group of opposite side painting connects on the graphene film, and guarantee does not interfere the thin vibration of membrane of piezoelectric nano.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the peripheral hardware supplementary module
Mainly external power supply.External world's power supply provides for a kind of piezoelectric nano film sound system based on amplifying circuit must
The power amplification energy wanted.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, the N ditch field-effect tube
Primary amplification audio electrical signal power, one of pin branch are connected with the nanometer sound module anode, a pin branch
Road is connected with the power supply, and a pin branch is connected with the other end of the positive filter capacitor.
A kind of piezoelectric nano film sound system based on amplifying circuit of the embodiment of the present application, a pole of the triode
It is connected with nanometer sound module cathode, a pole is connected with divider resistance is shunted, and a pole is connected to the ground.
As can be seen from the technical scheme provided by the above embodiments of the present application, in the embodiment of the present application, piezoelectric nano is used
Film is as vibrating elements, to convert sound-source signal for audio electrical signal.Therefore, the piezoelectric nano sound source in the present embodiment
System can integrate in micro-nano system.And its principle of sound is different from the hot principle of sound of carbon nanotube, will not generate big
The heat of amount is not required to special heat dissipation equipment, saves micro-system energy, can be more widely used in micro-system.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of overall structure of piezoelectric nano film sound system based on amplifying circuit of one embodiment of the application
Schematic diagram.
Fig. 2 is that the piezoelectricity in a kind of piezoelectric nano film sound system based on amplifying circuit of one embodiment of the application is received
The structure front view of rice film sound module.
Fig. 3 is that the piezoelectricity in a kind of piezoelectric nano film sound system based on amplifying circuit of one embodiment of the application is received
The cross section structure figure of rice film sound module.
Fig. 4 is insulating base in a kind of piezoelectric nano film sound system based on amplifying circuit of one embodiment of the application
Structure chart.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention
The present invention.
With reference to Fig. 1, the embodiment of the present application provides a kind of piezoelectric nano film sound system based on amplifying circuit, can be with
Including Audio Input Modules 11, power amplifier module 12, piezoelectric nano film sound module 13 and peripheral hardware supplementary module 14.
The input module 11 includes the audio interface 15 for accessing external audio signal, filters cathode and positive DC
The positive filter capacitor 17 and cathode filter capacitor 16 of audio noise.Wherein the value range of the positive filter capacitor 17 is
0.5uf to 2uf, best value are 1uf.Between 50uf to 120uf, optimum value is the value of the cathode filter capacitor 16
105uf。
The power amplifier module 12 includes LED light 110, shunts divider resistance R1 111, R2 115,112 and of R3
R4 114, N ditch field-effect tube 113 and triode 19.The LED light 110 is used to indicate circuit start and still closes shape
State.The shunting divider resistance 111,115,112 is sequentially connected in series, and is further connected with the LED light 110, selected shunting
Divider resistance 111,115,112 is respectively 2000 ohm, 10000 ohm, 2000 ohm.One of the N ditch field-effect tube 113
Pin branch is in parallel with the shunting divider resistance 111, and connect with the positive filter capacitor 17.One pin branch with
The shunting divider resistance 114 is connected, and is then connected with the triode 19, to realize the amplification of audio signal power.
The model 80NF70 of the N ditch field-effect tube, the shunting divider resistance 114 are 10000 ohm, the type of the triode 19
Number be BD243.
Main view such as Fig. 2 of the piezoelectric nano film sound module 13.For piezoelectric nano film sounding mould described in Fig. 2
Block includes piezoelectric nano film 24, electrode 22a and 22b, graphene film 23, insulation board 21.The insulation board 21 is the pressure
Electric 13 integrated substrate of nano thin-film sound module.The positive and negative anodes that the electrode 22a and 22b accesses the power amplifier module 12 are defeated
Outlet, and be placed on the insulation board 21.In order to which the piezoelectric nano film 24 more easily accesses audio electrical signal, and protect
The uniformity of voltage is demonstrate,proved, the graphene film 23 is first applied and is attached on the electrode 22.Further, the piezoelectric nano film
24 paintings are attached on the graphene film 23.Audio electrical signal drives the vibration of piezoelectric nano film 24 and realizes electric signal and convert
For acoustical signal, original audio is restored.
For the relatively sharp position that the fitting of the sound module 13 each element is presented, present embodiments provide described
The schematic top plan view 3 of sound module 13.Matrix insulation board 21 is in integrally-built bottom, and then negative electrode 22a is placed in absolutely
The top of listrium 21.Graphene film 23a is placed on electrode 22a, and width is two times of electrode 22b.To guarantee that piezoelectricity is received
Rice film 24 is adjacent to graphene film 23a to be contacted, and guarantees that voltage uniformly accesses piezoelectric nano film 24, is further restored
Original audio, it is ensured that sound it is clear, uniform, it is mellow and full.
Fig. 4 gives the structural schematic diagram of the insulation board 21, to guarantee that the piezoelectric nano film can be according to audio
Voltage free vibration, is not hindered by the external world, machined vibration hole 31a on insulation board 21.
For above-described embodiment simply to illustrate that the technical ideas and features of the present invention, its purpose is allows this field
Interior those of ordinary skill can understand the content of the utility model and implement accordingly, can not limit the utility model with this
Protection scope.All equivalent changes or modifications according to made by the essence of the content of the present invention, should all cover in this reality
With in novel protection scope.
Claims (10)
1. a kind of piezoelectric nano film sound system based on amplifying circuit characterized by comprising Audio Input Modules, function
Rate amplification module, piezoelectric nano film sound module and peripheral hardware supplementary module, audio electrical signal pass sequentially through the audio input
Module, the power amplifier module and the piezoelectric nano film sound module, finally by causing the piezoelectric nano film
Vibration, restore original audio.
2. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 1, which is characterized in that institute
Peripheral hardware supplementary module be stated respectively to the Audio Input Modules, the power amplifier module and the piezoelectric nano film sounding mould
Block provides the additional devices such as power supply and connecting wire.
3. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 1, which is characterized in that institute
Stating piezoelectric nano film sound module includes piezoelectric nano film, sound amplification film, graphene film and for connecting graphite
The electrode of alkene film, the electrode accesses the acoustic-electric inverted signal of the power amplifier module, and the electric signal is applied to
The graphene film.
4. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 2, which is characterized in that institute
It states piezoelectric nano film and is vibrated by receiving the acoustic-electric inverted signal from power amplifier module.
5. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 3, which is characterized in that institute
It is film adhered on piezoelectric nano film to state sound amplification, to amplify the sound of piezoelectric nano film sending.
6. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 3, which is characterized in that institute
Graphene film is stated for connecting the electrode and the piezoelectric nano film.
7. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 1, which is characterized in that institute
It states Audio Input Modules and external audio electric signal is linked into the piezoelectric nano film sound system.
8. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 1, which is characterized in that institute
Stating power amplifier module includes shunting divider resistance and field-effect tube and triode for sound amplification.
9. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 8, which is characterized in that institute
It states field-effect tube and needs external 12V power supply, the audio electrical signal that the Audio Input Modules are accessed amplifies.
10. a kind of piezoelectric nano film sound system based on amplifying circuit according to claim 1, which is characterized in that
The piezoelectric nano film sound module includes electrode, graphene film, piezoelectric nano vibration film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821853903.4U CN208821082U (en) | 2018-11-13 | 2018-11-13 | A kind of piezoelectric nano film sound system based on amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821853903.4U CN208821082U (en) | 2018-11-13 | 2018-11-13 | A kind of piezoelectric nano film sound system based on amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208821082U true CN208821082U (en) | 2019-05-03 |
Family
ID=66280764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821853903.4U Expired - Fee Related CN208821082U (en) | 2018-11-13 | 2018-11-13 | A kind of piezoelectric nano film sound system based on amplifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208821082U (en) |
-
2018
- 2018-11-13 CN CN201821853903.4U patent/CN208821082U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20191113 |