CN115538346B - Sound barrier with noise-photovoltaic combined power generation function - Google Patents
Sound barrier with noise-photovoltaic combined power generation function Download PDFInfo
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- CN115538346B CN115538346B CN202211344359.1A CN202211344359A CN115538346B CN 115538346 B CN115538346 B CN 115538346B CN 202211344359 A CN202211344359 A CN 202211344359A CN 115538346 B CN115538346 B CN 115538346B
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- 238000010248 power generation Methods 0.000 title claims abstract description 76
- 230000004888 barrier function Effects 0.000 title claims abstract description 59
- 238000004146 energy storage Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims description 8
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical group C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 claims description 7
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0023—Details, e.g. foundations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
- H02N2/188—Vibration harvesters adapted for resonant operation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/20—Supporting structures directly fixed to an immovable object
- H02S20/21—Supporting structures directly fixed to an immovable object specially adapted for motorways, e.g. integrated with sound barriers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Photovoltaic Devices (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a sound barrier with a noise-photovoltaic combined power generation function, which comprises a sound barrier main body arranged at a roadside, a top sound insulation layer arranged at the top of the sound barrier main body, a noise power generation device and an electric energy management system, wherein the top sound insulation layer is arranged at the top of the sound barrier main body; the noise barrier main body comprises a photovoltaic power generation layer and a Fresnel sound lens which is arranged on the surface of the photovoltaic power generation layer and is transparent, and the noise power generation device is arranged on the top sound insulation layer and is positioned at the focus of the Fresnel sound lens; the electric energy management system comprises an energy storage system and a charge-discharge control circuit which is used for connecting the energy storage system with the noise power generation device and the photovoltaic power generation layer respectively. The sound barrier is arranged on two sides of a road, and the photovoltaic power generation layer and the noise power generation device are used for generating power at the same time, so that the power generation efficiency is improved, the noise reduction effect of the sound barrier is further improved, and the noise resource and the solar energy resource are effectively utilized; the noise barrier solves the problem that the existing noise barrier cannot achieve the effects of noise reduction, universality and resource utilization.
Description
Technical Field
The invention belongs to the field of road traffic equipment, relates to a sound barrier of a traffic road, and in particular relates to a sound barrier with a noise-photovoltaic combined power generation function.
Background
The average value of the equivalent sound level of the traffic noise of the road in the daytime of the urban area of the whole country measured in 2021 according to the report of the prevention and treatment of the noise of the environment of the Chinese environment is 66.6dB, and the report of the prevention and treatment of the noise of the environment of the urban area of the whole country is pointed out in 2021 edition that the sound environment of the road in the daytime of the whole country is influenced by the traffic noise by up to 21.7%, which indicates that a significant part of urban residents still suffer from quite serious road noise every day. The forty-sixth revised method for controlling noise pollution in the people's republic of China, revised in 2021, explicitly states that new roads, highways, urban elevations, etc. passing through the concentrated areas of noise sensitive buildings are newly built, rebuilt, and the construction unit should set a sound barrier or take other measures on the important road sections that may cause noise pollution.
At present, the sound barrier mainly adopts a traditional road sound barrier, a traditional photovoltaic sound barrier and an enclosed road sound barrier, but the existing sound barrier is only a sound absorption barrier with single function, has limited sound absorption performance, and cannot achieve the effects of noise reduction, universality and resource utilization.
In order to better reduce the influence of driving noise on nearby residents and meet the demands of people on beautiful families and good ecological environments, a more efficient green road sound barrier is being sought to be valued by the state and society.
Disclosure of Invention
The invention aims to provide a sound barrier with a noise-photovoltaic combined power generation function, aiming at the problems that the noise reduction capability is limited, the solar energy utilization is limited, the noise energy cannot be utilized and the like in the past sound barrier, and solves the problems that the existing sound barrier cannot achieve the effects of noise reduction, universality and resource utilization; the noise power generation barrier has the advantages that the noise reduction effect is improved to the maximum extent, the collection utilization rate of green resources is improved, and the noise barrier can effectively utilize green energy while effectively reducing the noise volume; the noise reduction effect of the sound barrier is further improved, and the noise resource and the solar energy resource are effectively utilized.
In order to solve the technical problems, the invention adopts the following technical scheme:
The sound barrier with the noise-photovoltaic combined power generation function is characterized by comprising a sound barrier main body arranged at the roadside, a top sound insulation layer arranged at the top of the sound barrier main body, a noise power generation device and an electric energy management system;
The noise barrier main body comprises a photovoltaic power generation layer and a Fresnel sound lens which is arranged on the surface of the photovoltaic power generation layer and is transparent, and the noise power generation device is arranged on the top sound insulation layer and is positioned at the focus of the Fresnel sound lens;
The electric energy management system comprises an energy storage system and a charge-discharge control circuit which is used for connecting the energy storage system with the noise power generation device and the photovoltaic power generation layer respectively.
When the solar energy storage system is used, the sound barriers are arranged on two sides of a road, on one hand, when the light is sufficient, the photovoltaic power generation layer continuously converts solar energy into electric energy, and the electric energy is stored in an energy storage system (such as a storage battery) through the charge and discharge control circuit; on the other hand, noise inside and outside the road is focused and collected through the Fresnel lens, the noise power generation device at the noise focus generates power through the focused noise, the generated power is stored in an energy storage system (such as a storage battery) through a charging and discharging control circuit, the stored electric energy can be used for municipal illumination, other road and bridge monitoring equipment or traffic monitoring equipment, and the electric energy can be integrated into a commercial power grid for comprehensive allocation if the electric energy is abundant in power generation.
Further, the noise power generation device comprises a Helmholtz resonator, a piezoelectric film and a noise collection cover;
The noise collecting cover is arranged around the inlet of the Helmholtz resonator and used for guiding noise focused by the Fresnel lens into a resonance cavity of the Helmholtz resonator;
The piezoelectric film is arranged in a resonant cavity of the Helmholtz resonator and is used for generating electricity under resonance;
the inlet of the Helmholtz resonator is arranged at the acoustic focus of the Fresnel acoustic lens.
After being focused by the Fresnel lens, noise is further reflected and collected by the noise collecting cover and then enters the resonance cavity of the Helmholtz resonator through the inlet, the piezoelectric film positioned in the resonance cavity resonates, and the piezoelectric film converts the vibrating mechanical energy into electric energy through the piezoelectric property of the piezoelectric film to generate power.
The invention has the following beneficial effects and advantages:
1. The invention utilizes the cadmium telluride power generation glass, so that the sound barrier can receive solar energy by utilizing the space of the device as much as possible, and can continuously generate power in dim light environments such as overcast and rainy, cloudy and the like. Compared with the traditional mode of adding the solar panel on the sound barrier, the device has larger solar receiving area, improves the power generation efficiency and the environmental adaptability, and effectively improves the power generation efficiency and the environmental adaptability.
2. The invention uses the Fresnel lens, so that the traffic noise at the road side can be enhanced and effectively converged in a certain range after passing through the Fresnel lens. The device effectively solves the problem that the working efficiency of the noise power generation device is low when the noise level is small, ensures that the noise power generation device continuously and efficiently works, and further effectively improves the noise reduction function of the device by converting sound energy into electric energy.
3. The invention utilizes the noise power generation device to effectively convert the sound energy of road noise into electric energy. The noise reduction capability of the device is effectively increased by consuming noise energy while the green energy is effectively utilized. The device effectively utilizes the noise energy wasted in the past and skillfully enhances the noise reduction of the device.
Drawings
Fig. 1 is a schematic diagram of a sound barrier power generation principle with a noise-photovoltaic combined power generation function in an embodiment of the invention.
Fig. 2 is a three-dimensional schematic diagram of a sound barrier with a noise-photovoltaic combined power generation function in an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a sound barrier with a noise-photovoltaic combined power generation function according to an embodiment of the present invention.
Fig. 4 is an enlarged schematic view of the upper half of fig. 3.
Fig. 5 is a three-dimensional schematic diagram of a noise power generation device according to an embodiment of the invention.
Fig. 6 is a schematic view of a noise power generation device in a partially cut-away view according to an embodiment of the invention.
1-Sound barrier main body, 101-upright post, 102-cadmium telluride power generation glass, 103-Fresnel sound lens, 104-top sound insulation layer, 2-noise power generation device, 21-Helmholtz resonator, 211-cylindrical shell, 212-round hole inlet, 213-resonant cavity, 22-piezoelectric film, 23-cantilever, 24-noise collecting cover, 241-collecting cover bottom plate, 242-semi-conical cover, 3-charge and discharge control circuit and 4-energy storage system.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the present invention provides a sound barrier with a noise-photovoltaic combined power generation function, comprising a sound barrier body 1 provided at a roadside, a top soundproof layer 104 installed on top of the sound barrier body 1, a noise power generation device 2, and a power management system;
the noise barrier main body 1 comprises a photovoltaic power generation layer and a Fresnel sound lens which is arranged on the surface of the photovoltaic power generation layer and is transparent, and the noise power generation device 2 is arranged on the top sound insulation layer 104 and is positioned at the focus of the Fresnel sound lens;
The electric energy management system comprises an energy storage system 4 and a charge-discharge control circuit 3 which connects the energy storage system 4 with the noise power generation device 2 and the photovoltaic power generation layer respectively.
When the solar energy storage system is used, the sound barriers are arranged on two sides of a road, on one hand, when the light is sufficient, the photovoltaic power generation layer continuously converts solar energy into electric energy, and the electric energy is stored in the energy storage system 4 (such as a storage battery) through the charge and discharge control circuit 3; on the other hand, the noise inside and outside the road is focused and collected through the Fresnel lens, the noise power generation device 2 positioned at the noise focus generates power through the noise power generation device, the generated power is stored in the energy storage system 4 (such as a storage battery) through the charge-discharge control circuit 3, the stored power can be used for municipal illumination, other road and bridge monitoring equipment or traffic monitoring equipment, and if the power generation is abundant, the power generation device can be integrated into a commercial power grid for comprehensive allocation.
As a preferred embodiment, as shown in fig. 2, the sound barrier body is arranged in a modularized manner, and includes the upright posts 101 located at two sides and the sound barrier body 1 embedded between two adjacent upright posts 101, when the sound barrier is installed, the upright posts 101 are installed first, then the sound barrier body 1 is installed in an embedded manner, and one electric energy management system can be adopted between the sound barrier bodies 1, or of course, each sound barrier body 1 can be provided with one electric energy management system, and the electric energy management system can be specifically selected according to the requirement.
As a preferred embodiment, the photovoltaic power generation layer is cadmium telluride power generation glass 102, has good power generation efficiency, and also has certain light transmittance, so that the light requirement of traffic safety on a road in daytime environment is ensured.
As a preferred embodiment, as shown in fig. 3 and 4, the sound barrier body 1 has a sandwich structure, and includes a cadmium telluride power generation glass 102 in the middle and fresnel sound lenses respectively disposed on two sides of the cadmium telluride power generation glass 102, and since road noise is mainly generated by vehicles traveling on the road, the noise power generation device 2 is disposed at the acoustic focus of the fresnel sound lens on the inner side of the road to achieve the nearest noise power generation efficiency; the focal point of the fresnel lens on the outer side of the road does not overlap with the acoustic focal point of the fresnel lens on the inner side of the road, but the focal points are almost at the same height and do not converge far apart, so that most of the noise focused by the fresnel lens on the outer side can be collected into the noise power generator 2 to generate power by adding the collecting cover.
As a preferred embodiment, as shown in fig. 4 to 6, the noise power generation device 2 includes a helmholtz resonator 21, a piezoelectric film 22, and a noise collection cover 24;
The noise collection cover 24 is disposed around the inlet of the helmholtz resonator 21, and is used for guiding the noise focused by the fresnel lens into the resonance cavity 213 of the helmholtz resonator 21;
The piezoelectric film 22 is disposed in the resonance cavity 213 of the helmholtz resonator 21, and is used for generating power under resonance;
The inlet of the helmholtz resonator 21 is arranged at the acoustic focus of the fresnel acoustic lens.
After being focused by the Fresnel lens, the noise is further reflected and collected by the noise collecting cover 24 and then enters the resonance cavity 213 of the Helmholtz resonator 21 through the inlet, the piezoelectric film 22 positioned in the resonance cavity 213 resonates, and the piezoelectric film 22 converts the vibrating mechanical energy into electric energy through the piezoelectric property of the piezoelectric film to generate power.
As a specific embodiment, as shown in fig. 2, the whole fresnel acoustic lens is a rectangular plate-like structure with a similar size to the acoustic barrier of the prior art, and a focusing ring formed by a plurality of semicircular concentric rings is arranged on the fresnel acoustic lens, specifically, the semicircular concentric rings may be semicircular annular grooves formed on a plate-like transparent substrate material, and the inlet of the helmholtz resonator 21 coincides with the center of the semicircular concentric rings on the fresnel acoustic lens.
As a preferred embodiment, as shown in fig. 4 to 6, the helmholtz resonator 21 includes a cylindrical housing 211, where a circular hole inlet 212 is formed at the center of one end of the cylindrical housing 211, and the other end is a closed end, and the internal cavity forms a resonant cavity 213; the piezoelectric film 22 is arranged in the resonant cavity 213 along the axial direction of the cylindrical shell 211 and sequentially through the cantilever 23.
As a preferred embodiment, as shown in fig. 3 to 6, the inlet of the helmholtz resonator 21 is a circular hole inlet 212, the axis of the circular hole inlet 212 is inclined inwards, the inclination angle satisfies that the axis (dotted line in fig. 3) of the circular hole inlet 212 intersects with the outermost semicircular concentric ring, and by arranging the inlet of the helmholtz resonator 21 obliquely, the efficiency of noise entering the helmholtz resonator 21 after focusing by the fresnel acoustic lens is improved.
As a preferred embodiment, as shown in fig. 5 and 6, the noise collection cover 24 includes a collection cover bottom plate 241 and a semi-conical cover 242 disposed on the collection cover bottom plate 241, the semi-conical cover 242 is a conical cover and is cut along the axial line, the collection cover bottom plate 241 is located on the cut surface, the collection cover bottom plate 241 is provided with a noise collection hole matched with the inlet of the helmholtz resonator 21, and the noise collection hole is tangential to the center of the semi-conical cover 242; the collecting cover bottom plate 241 and the inner side of the semi-cone cover 242 are both noise reflection layers, such as being made of an acoustic reflection material or being coated with an acoustic reflection coating.
As a preferred embodiment, as shown in FIG. 2, the semi-conical shaped cover 242 has a footprint that corresponds approximately to the area of the semi-circular concentric ring of the innermost Fresnel lens.
As a specific embodiment, as shown in fig. 6, the piezoelectric film 22 is a rectangular PVDF piezoelectric film, and there are four PVDF piezoelectric films, which are fixedly installed in the resonant cavity 213 through a cantilever 23 on one side.
It should be noted that, the power generation of the photovoltaic power generation layer and the power generation of the piezoelectric film 22 are performed by using the existing mature technology, which is not the point of the present invention, and is not repeated herein, and the electric energy management system is also used in the existing technology, for example, the energy storage system 4 may select a storage battery, and the charge/discharge control circuit 3 is also used in the existing technology, for example, the technology disclosed in the patent CN110492776 a.
The above embodiments are only for illustrating the present invention, and are not limiting of the present invention. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, and substitutions can be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. The sound barrier with the noise-photovoltaic combined power generation function is characterized by comprising a sound barrier main body arranged at the roadside, a top sound insulation layer arranged at the top of the sound barrier main body, a noise power generation device and an electric energy management system;
The noise barrier main body comprises a photovoltaic power generation layer and a Fresnel sound lens which is arranged on the surface of the photovoltaic power generation layer and is transparent, and the noise power generation device is arranged on the top sound insulation layer and is positioned at the focus of the Fresnel sound lens;
The electric energy management system comprises an energy storage system and a charge-discharge control circuit which connects the energy storage system with the noise power generation device and the photovoltaic power generation layer respectively;
the noise power generation device comprises a Helmholtz resonator, a piezoelectric film and a noise collection cover;
The noise collecting cover is arranged around the inlet of the Helmholtz resonator and used for guiding noise focused by the Fresnel lens into a resonance cavity of the Helmholtz resonator;
The piezoelectric film is arranged in a resonant cavity of the Helmholtz resonator and is used for generating electricity under resonance;
the inlet of the Helmholtz resonator is arranged at the acoustic focus of the Fresnel acoustic lens;
The Fresnel lens is of a rectangular plate-shaped structure, a focusing ring formed by a plurality of semicircular concentric rings is arranged on the Fresnel lens, and the inlet of the Helmholtz resonator is overlapped with the circle center of the semicircular concentric rings on the Fresnel lens;
The Helmholtz resonator comprises a cylindrical shell, a round hole inlet is formed in the center of one end of the cylindrical shell, the other end of the cylindrical shell is a closed end, a resonant cavity is formed in an inner cavity, and a plurality of piezoelectric films are arranged in the resonant cavity along the axial direction of the cylindrical shell and sequentially arranged in the resonant cavity through cantilevers;
the axis of the circular hole inlet of the Helmholtz resonator is inclined inwards, and the inclination angle meets the condition that the axis of the circular hole inlet is intersected with the semicircular concentric ring at the outermost side;
The noise collecting cover comprises a collecting cover bottom plate and a semi-conical cover arranged on the collecting cover bottom plate, the semi-conical cover is formed by cutting the conical cover along the axial lead, the collecting cover bottom plate is positioned on the cutting plane, a noise collecting hole matched with the inlet of the Helmholtz resonator is formed in the collecting cover bottom plate, and the noise collecting hole is in tangential transition with the center of the semi-conical cover; the bottom plate of the collecting cover and the inner side of the semi-conical cover are both noise reflecting layers;
The sound barrier main body is arranged in a modularized manner and comprises upright posts positioned at two sides and a sound barrier main body embedded between two adjacent upright posts;
the photovoltaic power generation layer is cadmium telluride power generation glass;
the sound barrier main body is of a sandwich structure and comprises cadmium telluride power generation glass positioned in the middle and Fresnel sound lenses respectively arranged on two sides of the cadmium telluride power generation glass.
2. The sound barrier with noise-photovoltaic combined power generation function according to claim 1, wherein: the piezoelectric film is a rectangular PVDF piezoelectric film, and the PVDF piezoelectric film is fixedly arranged in the resonant cavity through a cantilever at one side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211344359.1A CN115538346B (en) | 2022-10-31 | 2022-10-31 | Sound barrier with noise-photovoltaic combined power generation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211344359.1A CN115538346B (en) | 2022-10-31 | 2022-10-31 | Sound barrier with noise-photovoltaic combined power generation function |
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| CN115538346A CN115538346A (en) | 2022-12-30 |
| CN115538346B true CN115538346B (en) | 2024-04-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841255A (en) * | 2010-04-19 | 2010-09-22 | 东南大学 | Noise power generation device and power generation method |
| CN107241059A (en) * | 2017-08-03 | 2017-10-10 | 山东索维智能科技有限公司 | A kind of Non-energy-consumption is from trend day concentrating generation device |
| CN111131904A (en) * | 2019-12-31 | 2020-05-08 | 维沃移动通信有限公司 | Video playing method and head-mounted electronic equipment |
| CN112030799A (en) * | 2020-09-28 | 2020-12-04 | 华东交通大学 | Sound barrier of active noise reduction and collection device and working method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201800004707A1 (en) * | 2018-04-19 | 2019-10-19 | NEUTRAL COLOR LUMINESCENT SOLAR CONCENTRATORS |
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2022
- 2022-10-31 CN CN202211344359.1A patent/CN115538346B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841255A (en) * | 2010-04-19 | 2010-09-22 | 东南大学 | Noise power generation device and power generation method |
| CN107241059A (en) * | 2017-08-03 | 2017-10-10 | 山东索维智能科技有限公司 | A kind of Non-energy-consumption is from trend day concentrating generation device |
| CN111131904A (en) * | 2019-12-31 | 2020-05-08 | 维沃移动通信有限公司 | Video playing method and head-mounted electronic equipment |
| CN112030799A (en) * | 2020-09-28 | 2020-12-04 | 华东交通大学 | Sound barrier of active noise reduction and collection device and working method thereof |
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| CN115538346A (en) | 2022-12-30 |
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