CN208890682U - Collect the friction nanometer power generator of acoustic wave energy - Google Patents
Collect the friction nanometer power generator of acoustic wave energy Download PDFInfo
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- CN208890682U CN208890682U CN201821877211.3U CN201821877211U CN208890682U CN 208890682 U CN208890682 U CN 208890682U CN 201821877211 U CN201821877211 U CN 201821877211U CN 208890682 U CN208890682 U CN 208890682U
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Abstract
The utility model provides a kind of friction nanometer power generator for collecting acoustic wave energy, comprising: helmholtz resonance chamber, print electrode fep film, fixed bottom cover with acoustic aperture aluminium film, electrically conductive ink；Wherein, helmholtz resonance chamber includes bicylindrical tubule and cube resonant cavity, concentrates storage acoustic wave energy and amplifies sonic wave amplitude；Band acoustic aperture aluminium film is fixed on resonant cavity lower opening, and surface is evenly distributed small sircle hole；Electrically conductive ink prints electrode fep film through fine sandpaper polishing and high voltage electric field processing, is fixed below aluminium film, is bonded with it, electrically conductive ink is printed at back；FEP is produced electricl energy with alternation oscillation of sound pressure and with fixed aluminium film generation contact separation movement.The energy collecting device of the utility model reacts sensitive to sound wave, and efficiency of energy collection is high, and output performance is excellent, can be to Miniature Sensor continued power.
Description
Technical field
The utility model relates to energy collecting devices, more particularly to a kind of friction nanometer power generator for collecting acoustic wave energy
Device.
Background technique
With rapidly depleting for global energy, it is outstanding for the development of society and the protection of ecological environment to develop and use new energy
It is important.Friction nanometer power generator utilizes the relative motion between nano material and interaction, can effectively collect low-frequency vibration energy,
And it is translated into electric energy.It finds the collection benefit with research for many form energies such as vibrational energy, wind energy, water energy, biological energy sources
With new thinking is provided, a kind of new model is started to clean the exploitation of the discarded energy, has been had in new energy development research
The meaning of milestone.The discarded energy being largely difficult to be utilized in life is all expected to recycle benefit by way of friction nanometer power generator
With.
Sound wave is a kind of special shape of mechanical oscillation.As clean, ubiquitous, sustainable development a energy
Source form, sound wave are energy sources that is a kind of plentiful in we live but being wasted.Since sound wave can be that a kind of energy is close in itself
Very low energy source is spent, so also lacking effective technology always can be carried out acquisition to the sound wave in environment at present.If utilizing electricity
The mode of magnetic induction power generation solves the problems, such as this, and since acoustic wave energy density is smaller, and acoustic pressure alternation is rapid, so that conductor is extremely difficult
Significant movement is generated under the action of acoustic force, therefore is collected acoustic wave energy using electromagnetic induction and be difficult to realize.Piezoelectric material pair
Slight perturbations have very strong sensibility, are normally used for sensory field, and monitoring technology is used in conjunction with ultrasonic wave, have very
Good effect.But it is extremely difficult that sound wave can be converted to the electric energy with certain power using piezoelectric material, therefore current piezoelectricity
Material also and non-collection acoustic wave energy best mode.Friction nanometer power generator utilizes the interaction of storeroom, disturbs to the external world
It is dynamic that there is very strong sensibility, while can effectively collect environmental energy and generate considerable power output, currently with TENG, (friction is received
Rice generator) principle collection acoustic wave energy carries out power generation and there is part to study, but the electric energy of sending is still insufficient, and lacks into
Its output of ripe theoretical and effective technical optimization, makes it generate best output effect in particular frequency range.
Summary of the invention
According to technical problem set forth above, and a kind of friction nanometer power generator is provided, which can receive
Collect external sound wave energy production electric energy, and is electronics.
The technological means that the utility model uses is as follows:
A kind of friction nanometer power generator for collecting acoustic wave energy,
It include: helmholtz resonance chamber, print electrode fep film, fixed bottom cover with acoustic aperture aluminium film, electrically conductive ink；
Helmholtz resonance chamber includes bicylindrical tubule and cube resonant cavity；Band acoustic aperture aluminium film is fixed on a cube resonant cavity
The lower opening of body, surface are evenly distributed small sircle hole；
Electrically conductive ink prints electrode fep film through fine sandpaper polishing and high voltage electric field processing, is fixed below band acoustic aperture aluminium film,
And be bonded with band acoustic aperture aluminium film, electrically conductive ink is printed at back；
Fixed bottom cover fixes two films and a cube resonant cavity.
Further,
Wherein, the lower openings of cube resonant cavity are square.
Further,
Wherein, band acoustic aperture aluminium film is relatively thick, and be evenly distributed circular hole, will cube resonant cavity inner cavity with acoustic aperture aluminium film and
Electrically conductive ink prints electrode gap connection between fep film.
Further,
Wherein, electrically conductive ink print electrode fep film back printing electrically conductive ink, fep film with acoustic vibration and with band acoustic aperture
Aluminium film constantly separate and produces electricl energy.
Further, wherein conducting ink electrode is printed on fep film back by electrically conductive ink, and thickness is about 6 microns, will
The charge inducing export generated in fep film.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is done simply to introduce, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, 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 the schematic overall structure figure of friction nanometer power generator of the utility model one embodiment.
Fig. 2 is the friction nanometer power generator schematic exploded structure chart of the utility model one embodiment.
Fig. 3 is the schematic electricity generating principle figure of friction nanometer power generator of the utility model one embodiment.
Fig. 4 is the friction nanometer power generator of the utility model one embodiment under different frequency of sound wave and different sound pressure levels
The opening voltage of output.
Fig. 5 is the short circuit electricity that the friction nanometer power generator of the utility model one embodiment exports under different frequency of sound wave
Stream.
Fig. 6 is the electricity that the friction nanometer power generator of the utility model one embodiment exports under different frequency of sound wave.
Fig. 7 is that the friction nanometer power generator of the utility model one embodiment is bent to the voltage of different capabilities capacitor charging
Line.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is only the utility model a part of the embodiment, instead of all the embodiments.Below at least one example
The description only actually of property embodiment be it is illustrative, never as to the utility model and its application or any limit used
System.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the utility model.As used herein, unless the context clearly indicates otherwise, otherwise singular
Form be also intended to include plural form, additionally, it should be understood that, when in the present specification use term "comprising" and/or
When " comprising ", existing characteristics, step, operation, device, component and/or their combination are indicated.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be clear that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.Skill known for person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, example should be construed as merely by appointing to occurrence
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model: the noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under its device or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
As shown in Figure 1, Figure 2 and Figure 3, the utility model provides a kind of friction nanometer power generator for collecting acoustic wave energy,
It include: helmholtz resonance chamber 1, print electrode fep film 3, fixed bottom cover 4 with acoustic aperture aluminium film 2, electrically conductive ink；
Helmholtz resonance chamber 1 includes bicylindrical tubule 1.1 and cube resonant cavity 1.2；Band acoustic aperture aluminium film 2 is fixed on vertical
The lower opening of square resonant cavity 1.2, surface are evenly distributed small sircle hole；
Electrically conductive ink prints electrode fep film 3 through fine sandpaper polishing and high voltage electric field processing, is fixed under band acoustic aperture aluminium film 2
Side, and be bonded with band acoustic aperture aluminium film 2, electrically conductive ink is printed at back；
Fixed bottom cover 4 is fixed by two films and cube resonant cavity 1.2.
Further,
Wherein, the lower openings of cube resonant cavity 1.2 are square.
Further,
Wherein, band acoustic aperture aluminium film 2 is relatively thick, and be evenly distributed circular hole, by 1.2 inner cavity of cube resonant cavity and with acoustic aperture aluminium
Film 2 and electrically conductive ink print electrode gap connection between fep film 3.
Further,
Wherein, electrically conductive ink print electrode 3 back of fep film printing electrically conductive ink, fep film 3 with acoustic vibration and with band sound
Hole aluminium film 2 constantly separate and produces electricl energy.
Further, wherein conducting ink electrode 10 is printed on 3 back of fep film by electrically conductive ink, and thickness is about 6 microns,
The charge inducing generated in fep film is exported.
The utility model by adopting the above technical scheme stores sound wave energy by the helmholtz resonance chamber of a special construction
Acoustic vibration is measured and amplifies, fep film is produced electricl energy with alternation oscillation of sound pressure and with fixed aluminium film generation contact separation movement.In frequency
Rate is 100Hz, and sound pressure level is under the low energy acoustic wave excitation of 65dB, and it is defeated that sound wave TENG (friction nanometer power generator) can get 10V
Voltage out.When frequency of sound wave is 80Hz, and sound pressure level is 91.5dB, sound wave TENG (friction nanometer power generator) opening voltage output
Up to 58V, 14 μ A of short circuit current, transfer charge amount 46nC, power density 400.99mW/m2.Collect the electricity that acoustic wave energy generates
Sustainable 60 LED can be lighted, 1mF capacitor rises to 2V from 0V under its output and used the 280s time, makes a relatively high power
Temperature Humidity Sensor works 56s, and in the case where sound wave TENG (friction nanometer power generator) power supply, smaller power
The sustainable work of temperature sensor.It same available across medium sound wave and is obtained considerable defeated when steel plate being isolated between sound source
Out, the applause outside 5m and voice can make it generate obvious voltage signal.
Chamber size 73mm × 73mm × 40mm in the resonant cavity designed in the utility model, capillary inside diameter 5mm, long 32mm.
The effect of helmholtz resonance chamber is to make to reach resonance state into the sound wave in it, stores acoustic wave energy in the cavity, more
Good consumption simultaneously pushes TENG (friction nanometer power generator) to work using acoustic wave energy, improves sound wave TENG (friction nanometer generating
Machine) output performance and delivery efficiency.
Aluminium is a kind of very strong material of electropositive, and compared with easy to drawing materials, is easily handled, and cost is relatively low, and electric conductivity is good,
Itself can do electrode, be the good material for preparing friction nanometer power generator.In 45mm × 45mm × 0.2mm aluminium film, uniformly
It is distributed the acoustic aperture of about 200 diameter 1mm.The effect of acoustic aperture is by the intracavitary air of helmholtz resonance and two films (aluminium film and FEP
Film) between gap connection, so that positive and negative acoustic pressure is can act on fep film two sides.
Fep film electronegativity is strong, and has flexibility well, is the good material for preparing friction nanometer power generator.Sound wave
TENG (friction nanometer power generator) has selected 50 μm of thickness of fep film, effective work area 45mm × 45mm.But FEP material sheet
As insulator, need in the attached one layer of conductive electrode in its surface.Herein using the method for electrically conductive ink printing, on fep film surface
Attached a layer thickness is about 6 μm of conducting ink electrode, measures about 130 Europe of diagonal line resistance in efficient working range.Fep film passes through
It is polished using 10000 mesh sand paper, generates micro-structure in film surface, increase contact area and contact stress between aluminium film, simultaneously
FEP material easily generates after friction and high voltage electric field processing and stores a large amount of polarization triboelectric charges, so that fep film and aluminium film exist
More electric charge transfers are generated during contact separation, to improve the output of sound wave TENG (friction nanometer power generator)
Energy.
Sound wave TENG (friction nanometer power generator) course of work, fep film and aluminium film are initially in discrete state, electronics in aluminium
For free electron.Fep film is moved inward and is contacted with aluminium film when showing as negative pressure on the inside of fep film with alternation oscillation of sound pressure,
A part of electronics enters in the deeper potential well of FEP in aluminium.Due to energy level difference, the free electron of aluminium surface is transferred to the interface FEP
LUMO (lowest unoccupied molecular orbital (LUMO)).With electronics transfer, electric field strength increases, and electronics transfer only occurs in aluminium under its effect
Contact surface, and other electronics cannot be supplied to electron deficiency region, and when new stable state is established, electronics is not retransferred.In sound
Under wave effect, when showing as positive pressure on the inside of fep film, it is gradually disengaged with aluminium film, the additional electronic potential of aluminium surface disappears, due to
Potential difference between aluminum contact surface and FEP rear electrode, electronics are flowed out from the electrode of FEP along external circuit to compensate the electronics of aluminium damage
It loses and equilibrium potential is poor, sound wave TENG (friction nanometer power generator) therefore works.
Fig. 4 to Fig. 7 is the effect explanatory diagram of the utility model one embodiment.Fig. 4 is shown according to the utility model one
The opening voltage that the friction nanometer power generator of a embodiment is exported under different frequency sound wave.Every curve its motivate sound wave tool
There is identical amplitude, sonic wave amplitude is gradually increased from bottom to top, and sound pressure level is respectively 78.5-81.5dB, 83.3-86.1dB,
87.6-89.1dB 91.5-93.8dB.Figure 4, it is seen that the output of opening voltage increases with the increase of sonic wave amplitude
Greatly, when sonic wave amplitude is identical, voltage reaches highest at a certain frequency, and voltage gradually decreases when far from this optimum frequency.?
Frequency is 100Hz, and sound pressure level is under the acoustic wave excitation of 78.5dB, and the output for the voltage that is open is about 15V, is 91.5dB in sound pressure level
When, opening voltage output is about 58V, and output performance is preferable.Fig. 5 is shown to be received according to the friction of the utility model one embodiment
The short circuit current that rice generator exports under different frequency sound wave, sound pressure level 91.5-93.8dB, in this sound pressure level section, electric current
Reach maximum when frequency of sound wave is 80Hz, the output of short circuit current is about 14 μ A, and output performance is preferable.Fig. 6 shows basis
Electricity output of the friction nanometer power generator of the utility model one embodiment under different frequency sound wave, sound pressure level 91.5-
93.8dB, the output of electricity and voltage and current have similar rule, and electricity output when frequency of sound wave is 80Hz is maximum, about
46nC, output performance is good, while it can be seen in the drawing that the output frequency of friction nanometer power generator is identical as frequency of sound wave,
Illustrate that the fep film of friction nanometer power generator follows acoustic vibration closely.Fig. 7 shows the friction according to the utility model one embodiment
Nano generator is 80Hz in frequency of sound wave, fills capacitance curve when sound pressure level is 91.5dB.It can be seen from figure 7 that 47 μ F
Capacitor charge to 2V under friction nanometer power generator power supply from 0V and only use the about 10s time, 1000 μ F capacitors charge to 2V from 0V
About need the 280s time, it is seen that friction nanometer power generator has good charging ability to capacitor.And friction nanometer power generator
The electric energy of output can directly power to Miniature Sensor after storing in capacitor, temperature sensor can be made to continue working.Friction is received
The electric energy of rice generator output can directly power to LED light, can while and persistently light 60 LED.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (5)
1. a kind of friction nanometer power generator for collecting acoustic wave energy, which is characterized in that
It include: helmholtz resonance chamber (1), print electrode fep film (3), fixed bottom cover with acoustic aperture aluminium film (2), electrically conductive ink
(4)；
The helmholtz resonance chamber (1) includes bicylindrical tubule (1.1) and cube resonant cavity (1.2)；The band acoustic aperture aluminium
Film (2) is fixed on the lower opening of a cube resonant cavity (1.2), and surface is evenly distributed small sircle hole；
The electrically conductive ink prints electrode fep film (3) through fine sandpaper polishing and high voltage electric field processing, is fixed on band acoustic aperture aluminium film
(2) lower section, and be bonded with band acoustic aperture aluminium film (2), electrically conductive ink is printed at back；
The fixed bottom cover (4) is fixed by two films and cube resonant cavity (1.2).
2. the friction nanometer power generator according to claim 1 for collecting acoustic wave energy, which is characterized in that
Wherein, the lower openings of described cube of resonant cavity (1.2) are square.
3. the friction nanometer power generator according to claim 2 for collecting acoustic wave energy, which is characterized in that
Wherein, band acoustic aperture aluminium film (2) is relatively thick, and be evenly distributed circular hole, by cube resonant cavity (1.2) inner cavity and with acoustic aperture aluminium
Film (2) and electrically conductive ink print electrode gap connection between fep film (3).
4. the friction nanometer power generator according to claim 3 for collecting acoustic wave energy, which is characterized in that
Wherein, electrically conductive ink prints electrode fep film (3) back printing conducting ink electrode, and electrically conductive ink prints electrode fep film
(3) it constantly separate and produces electricl energy with acoustic vibration and with band acoustic aperture aluminium film (2).
5. the friction nanometer power generator according to claim 4 for collecting acoustic wave energy, which is characterized in that wherein, conductive oil
Electrode ink is printed on fep film (3) back by electrically conductive ink, and thickness is about 6 microns, and the charge inducing generated in fep film is exported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877211.3U CN208890682U (en) | 2018-11-15 | 2018-11-15 | Collect the friction nanometer power generator of acoustic wave energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821877211.3U CN208890682U (en) | 2018-11-15 | 2018-11-15 | Collect the friction nanometer power generator of acoustic wave energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245598A (en) * | 2018-11-15 | 2019-01-18 | 大连海事大学 | Collect the friction nanometer power generator of acoustic wave energy |
| CN110681560A (en) * | 2019-09-10 | 2020-01-14 | 武汉大学 | MEMS ultrasonic positioning sensor with Helmholtz resonant cavity |
-
2018
- 2018-11-15 CN CN201821877211.3U patent/CN208890682U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245598A (en) * | 2018-11-15 | 2019-01-18 | 大连海事大学 | Collect the friction nanometer power generator of acoustic wave energy |
| CN110681560A (en) * | 2019-09-10 | 2020-01-14 | 武汉大学 | MEMS ultrasonic positioning sensor with Helmholtz resonant cavity |
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