CN201797452U - Power generating device using broadband noise - Google Patents
Power generating device using broadband noise Download PDFInfo
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- CN201797452U CN201797452U CN201020101060XU CN201020101060U CN201797452U CN 201797452 U CN201797452 U CN 201797452U CN 201020101060X U CN201020101060X U CN 201020101060XU CN 201020101060 U CN201020101060 U CN 201020101060U CN 201797452 U CN201797452 U CN 201797452U
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- noise
- piezoelectric membrane
- generating device
- power generating
- piezoelectric film
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Abstract
The utility model provides a device capable of effectively absorbing sonic waves, reducing noise and converting the noise into electric energy. An external ear structure, a middle ear structure and an internal ear structure are simulated according to bionic principle. The power generating device is provided with a resonant cavity, a piezoelectric film, a rear cavity and an energy storage device. The piezoelectric film is positioned between the resonant cavity and the rear cavity and fixed by two circular polycarbonate clamping plates, a plurality of concentric holes with certain diameters are fixed onto the clamping plates, the piezoelectric film consists of four 20-micrometer polyvinylidene fluoride (PVDF) piezoelectric films in series connection, and an electrode lead is led out by the aid of electrode metal layer evaporation technique. Outputted signals of the piezoelectric film is used for charging a double-electric-layer capacitor after passing a rectifying circuit, and an electric energy conversion circuit is fixedly mounted inside a casing. A plurality of power generating device using noise can be connected in parallel or in series for use according to specific needs to provide needed power supplying voltage, current and the like, the power generating device is convenient in installation and use, has a frequency range between 2Hz and 1000kHz, and is applicable to an environment with higher noise, such as an airport, subway, stadium, highway and the like, and generated electric power can be used for illumination and the like after conversion and storage.
Description
Technical field
The utility model relates to a kind of noise generating device, is specially adapted to places such as airport, highway, railway are along the line, subway, stadium, urban transportation hinge, utilizes noise that generating is provided.
Background technology
Noise is big public hazards of society, and countries in the world are all eliminated making great efforts.In order to reduce the harm of noise to citizen's health, some cities (such as road both sides) around noise source installed gobo.But the effect of gobo is also bad, because they can only stop that noise spreads to periphery, and can not effectively eliminate noise.Modern study shows, when the noise impact gobo, can allow gobo produce slight vibration, can produce the bigger infrasound of harmfulness.Therefore, absorption of noise how effectively, and convert thereof into available resource, be the new research direction of noise abatement.
Summary of the invention
The utility model aims to provide and a kind ofly can effectively absorb the sound wave noise reduction, noise can be converted into the device of electric energy again.According to bionics principle, apish outer, in, interior ear structure, the utility model is provided with resonant cavity, piezoelectric membrane, back cavity and energy storage device.Piezoelectric membrane is in the middle of resonant cavity and the back cavity, is fixed by two Merlon circle clamping plates, and the certain concentric holes of several diameters is arranged on the clamping plate; Piezoelectric membrane adopts electrode evaporation metal level technology extraction electrode lead; Electric energy change-over circuit plate places the enclosure interior fixed installation.
The utility model is to realize the noise generating like this: resonant cavity is collected influx noise, by the size of through-hole diameter on the clamping plate, can select resonance frequency.The noise resonance wave acts on piezoelectric membrane, along with two surface generation equal and opposite in directions of vibration piezoelectric membrane, opposite polarity electric charge.By rectification circuit with electrical power storage in double electric layer capacitor, use for load.By selection to piezoelectric, the structural design of resonant cavity, in 100 decibels noise circumstance, when the outside was the optimum Match load, device can provide 3V, the electric energy of 10mA.
The beneficial effects of the utility model are: easy to install, be applicable to the environment that noise is stronger, and as airport, subway, stadium, highway etc., the electric power that is produced can be for uses such as illuminations through conversion, storage.
Description of drawings
Fig. 1 is the utility model embodiment cutaway view.
Fig. 2 is the utility model embodiment circuit theory diagrams.
Embodiment
As shown in Figure 1, this device is made up of protective cover, clamping plate, piezoelectric membrane, circuit board and output lead.Profile is cylindrical structure, and size is by the physical dimension decision of the size resonant cavity of selected piezoelectric membrane.This routine overall dimension is Φ 400mm * 125mm, and frequency range is (2Hz～1000kHz) from the infrasound to the ultrasonic wave.
Referring to Fig. 1, this device places resonant cavity (2) and back cavity (5) middle piezoelectric membrane (4), fixing with the clamping plate that has concentric holes (3), piezoelectric membrane (4) is composed in series by the PVDF piezoelectric membrane of 4 layer of 20 μ m, piezoelectric membrane adopts electrode evaporation metal level technology extraction electrode lead, circuit board (8) is fixedly mounted on back cavity inside, and output lead is drawn by the steam vent of housing (6).
Referring to Fig. 2, the signal of piezoelectric membrane output, behind rectification circuit, to the double electric layer capacitor charging, circuit element is installed on the circuit board, adopts the silica gel embedding to handle.
The described noise generating device of present embodiment, in the use according to concrete needs, can a plurality of parallel connections or the use that is connected in series, so that requirements such as required supply power voltage, electric current to be provided.
Below provide the model and the parameter of device among Fig. 2:
Piezoelectric membrane Q:PVDF, overall dimension: Φ 450mm * 20 μ m * 4 layer
Rectistack D:0.5A
Double electric layer capacitor: DCL, 5.5V/1.5F.
Claims (3)
1. broadband noise Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is characterized in that: be provided with resonant cavity, piezoelectric membrane, back cavity and energy storage device, piezoelectric membrane are in the middle of resonant cavity and the back cavity, are fixed by two Merlon circle clamping plates, and the certain concentric holes of several diameters is arranged on the clamping plate; Piezoelectric membrane is composed in series by the PVDF piezoelectric membrane of 4 layer of 20 μ m, and piezoelectric membrane adopts electrode evaporation metal level technology extraction electrode lead; The accumulator plate is fixedly mounted on back cavity inside, and output lead is drawn by the steam vent of housing.
2. broadband noise Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1 is characterized in that: be suitable for frequency range from the infrasound to the ultrasonic wave, i.e. 2Hz～1000kHz.
3. broadband noise Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to claim 1, it is characterized in that: profile is cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020101060XU CN201797452U (en) | 2010-01-26 | 2010-01-26 | Power generating device using broadband noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020101060XU CN201797452U (en) | 2010-01-26 | 2010-01-26 | Power generating device using broadband noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201797452U true CN201797452U (en) | 2011-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020101060XU Expired - Fee Related CN201797452U (en) | 2010-01-26 | 2010-01-26 | Power generating device using broadband noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201797452U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244410A (en) * | 2011-07-12 | 2011-11-16 | 中国民航大学 | Airport noise conversion device |
| CN102820804A (en) * | 2011-06-09 | 2012-12-12 | 山东轻工业学院 | Power generation device by noise |
| CN103077265A (en) * | 2012-12-23 | 2013-05-01 | 同济大学 | Low frequency noise inhibition method applied to open area |
| CN105391149A (en) * | 2015-12-29 | 2016-03-09 | 哈尔滨工业大学 | Green method for supplying power source to LED lamp based on thin film vibration |
| CN105657906A (en) * | 2016-03-21 | 2016-06-08 | 吉林大学 | Urban road illuminating system based on vehicle noise energy collection |
| CN107227696A (en) * | 2017-06-23 | 2017-10-03 | 苏州大学 | It is capable of the acoustic barrier of self power generation |
| CN110048639A (en) * | 2019-03-18 | 2019-07-23 | 温州大学 | A kind of tunnel internal self power generation and self-powered method and device thereof |
-
2010
- 2010-01-26 CN CN201020101060XU patent/CN201797452U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820804A (en) * | 2011-06-09 | 2012-12-12 | 山东轻工业学院 | Power generation device by noise |
| CN102244410A (en) * | 2011-07-12 | 2011-11-16 | 中国民航大学 | Airport noise conversion device |
| CN103077265A (en) * | 2012-12-23 | 2013-05-01 | 同济大学 | Low frequency noise inhibition method applied to open area |
| CN103077265B (en) * | 2012-12-23 | 2015-04-15 | 同济大学 | Low frequency noise inhibition method applied to open area |
| CN105391149A (en) * | 2015-12-29 | 2016-03-09 | 哈尔滨工业大学 | Green method for supplying power source to LED lamp based on thin film vibration |
| CN105391149B (en) * | 2015-12-29 | 2017-10-17 | 哈尔滨工业大学 | The method that power supply is provided based on vibration of thin membrane for LED |
| CN105657906A (en) * | 2016-03-21 | 2016-06-08 | 吉林大学 | Urban road illuminating system based on vehicle noise energy collection |
| CN107227696A (en) * | 2017-06-23 | 2017-10-03 | 苏州大学 | It is capable of the acoustic barrier of self power generation |
| CN110048639A (en) * | 2019-03-18 | 2019-07-23 | 温州大学 | A kind of tunnel internal self power generation and self-powered method and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20120126 |