A sound barrier device based on solar energy and acoustic energy coupling power generation

Abstract

The utility model discloses a sound barrier device based on solar energy and acoustic energy coupling power generation belongs to road engineering technical field. The device is provided with single -sided photovoltaic power generation assembly, metal backplate, damping layer, environmental protection sound absorption material, acoustic nanometer power generation assembly from outside to inside in proper order. Acoustic nanometer power generation assembly is based on helmholtz resonance cavity design, and built -in permanent magnet, coil and multilayer composite friction nanometer generator transducer can convert noise mechanical vibration into electric energy, realize noise primary weakening simultaneously, cooperate environmental protection sound absorption material and damping layer and strengthen the effect of noise reduction. Back photovoltaic power generation assembly can recycle solar energy. The device realizes the organic combination of noise reduction and solar energy, acoustic energy double energy recovery, and the output electric energy can supply traffic facilities. Modular design adapts to multiple scenes, and provides a new path for green traffic infrastructure construction.

Description

Technical Field

[0001] This utility model relates to the field of road engineering technology, and in particular to a sound barrier device based on solar and acoustic energy coupling power generation. Background Technology

[0002] Against the backdrop of a comprehensive green transformation of the economy and society, the deep integration of renewable energy with transportation infrastructure is a key path to achieving sustainable development. Elevated bridges, as core facilities of transportation networks, offer excellent conditions for solar energy collection due to their open surfaces. Simultaneously, the continuous traffic noise generated by vehicles can be converted into stable acoustic energy resources. The natural complementarity between solar and acoustic energy makes them an advantageous scenario for the development of renewable energy along roads.

[0003] Traditional elevated bridge sound barriers only have a single noise reduction function, failing to fully utilize their spatial resources for energy harvesting and unable to meet the energy self-sufficiency requirements of green transportation. Existing sound barriers that integrate new energy sources mostly rely solely on solar energy, failing to effectively recover sound energy, and suffer from problems such as complex structures, high maintenance costs, and poor adaptability, making it difficult to balance noise reduction effectiveness with energy conversion efficiency. Utility Model Content

[0004] In view of the technical shortcomings of existing elevated bridge sound barriers, such as their single function and failure to simultaneously collect solar and acoustic energy, this utility model provides a sound barrier device based on the coupling of solar and acoustic energy to generate electricity. This device achieves an organic combination of noise control and dual energy recovery and utilization, enhances the energy self-sufficiency of road space, and promotes the construction of green highways.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model device is divided into a rear photovoltaic power generation module and a front acoustic nano-power generation module. Both adopt a modular design and can be spliced ​​and expanded according to the length of the elevated bridge section. Furthermore, a semi-enclosed or fully enclosed overall installation structure can be selected according to the noise intensity and sunlight conditions of the road section.

[0007] Preferably, a single-sided photovoltaic power generation module, a metal backplate, a damping layer, an environmentally friendly sound-absorbing material, and an acoustic nano-power generation module are arranged sequentially from the side away from the sound source to the side closer to the sound source, forming an integrated, stacked structure. The single-sided photovoltaic power generation module is installed at an angle to improve solar energy reception efficiency and can be stacked in multiple layers as needed. The environmentally friendly sound-absorbing material is a honeycomb structure made of polyester fiber to enhance sound wave interception capability.

[0008] Preferably, the acoustic nano-power generation component has a protective shell on the outside and a cavity structure inside, which houses a sound-to-electrical energy transducer composed of a permanent magnet, a membrane, and a coil. When traffic noise enters the cavity, it causes mechanical vibration, which drives the membrane and the permanent magnet to move, cutting the magnetic field lines of the coil to achieve the initial conversion of sound energy into electrical energy.

[0009] Preferably, the triboelectric nanogenerator transducer of the acoustic nanogenerator component has a multi-layer composite structure: the top layer is a conductive FPE film, below which is a hollow insulating gasket, and below the gasket is a conductive perforated PLA film with a size matching the conductive FPE film. The outermost layer is fixed by a square clamp. Noise vibration can drive the conductive FPE film and the conductive perforated PLA film to rub against each other, further realizing the conversion of sound energy into electrical energy.

[0010] The beneficial effects of this utility model are:

[0011] This utility model integrates photovoltaic power generation and acoustic nano-power generation system, simultaneously recovering solar energy and traffic noise sound energy to form a complementary energy supply system, which greatly improves the energy utilization rate along the sound barrier, and the generated electricity can be directly supplied to traffic facilities such as road lighting and signal monitoring.

[0012] This invention utilizes a multi-layered noise reduction structure consisting of "initial weakening by acoustic nano-power generation components + secondary absorption by honeycomb-shaped environmentally friendly sound-absorbing materials + vibration filtering by damping layers" to enhance noise reduction capabilities while recovering sound energy, effectively reducing noise intensity and propagation range.

[0013] In this utility model, both the photovoltaic power generation module and the acoustic nano power generation module adopt a modular design, which can be freely assembled, expanded and replaced according to the road conditions. It supports semi-enclosed or fully enclosed structure selection and is suitable for various scenarios such as new elevated bridges and renovation of existing facilities.

[0014] This invention transforms traditional energy-consuming noise reduction facilities into energy production units, achieving the integration of road performance and energy conversion functions, thus contributing to the green and low-carbon transformation of transportation infrastructure and reducing carbon emissions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the rear structure of the present invention;

[0017] Figure 2 This is a front structural diagram of the present invention.

[0018] Figure 3 This is a partial side view of the present invention, showing the stacked structure of the device from the outside to the inside;

[0019] Figure 4 This is a structural diagram of the acoustic nano-power generation component of this utility model, showing its protective shell, internal cavity and acoustic-electrical energy transducer.

[0020] Figure 5 This is an anatomical diagram of the transducer component of the acoustic nanogenerator module of this utility model, showing the multi-layer composite structure of the triboelectric nanogenerator transducer.

[0021] The components corresponding to the numbers in the attached diagram are as follows: 1-Rear photovoltaic power generation module, 2-Front acoustic nano-power generation module, 3-Single-sided photovoltaic power generation module, 4-Metal backplate, 5-Damping layer, 6-Environmentally friendly sound-absorbing material, 7-Acoustic nano-power generation module, 8-Permanent magnet, 9-Membrane, 10-Coil, 11-Acoustic nano-power generation module protective shell, 12-Conductive FPE film, 13-Insulating gasket, 14-Conductive perforated PLA film, 15-Square clamp. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. This embodiment shows the effect of installing all modules, not the only combination scheme. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-2 As shown, the device of this utility model is divided into a rear photovoltaic power generation component 1 and a front acoustic nano-power generation component 2. Both adopt a modular design and can be spliced ​​and expanded according to the length of the elevated bridge section. Furthermore, a semi-enclosed or fully enclosed overall installation structure can be selected according to the noise intensity and sunlight conditions of the road section.

[0024] like Figure 3 As shown, from the side away from the sound source to the side closer to the sound source, a single-sided photovoltaic power generation module 3, a metal back plate 4, a damping layer 5, an environmentally friendly sound-absorbing material 6, and an acoustic nano-power generation module 7 are arranged in sequence, forming an integrated, stacked structure. The single-sided photovoltaic power generation module 3 is installed at an angle to improve the solar energy reception efficiency and can be stacked in multiple layers as needed. The environmentally friendly sound-absorbing material 6 is a honeycomb structure made of polyester fiber, which enhances the sound wave interception capability.

[0025] like Figure 4As shown, the acoustic nano-power generation component 7 is equipped with a protective shell 11 on the outside and has a hollow structure inside, which houses a sound energy to electrical energy transducer composed of a permanent magnet 8, a membrane 9, and a coil 10. When traffic noise enters the cavity, it causes mechanical vibration, which drives the membrane 9 and the permanent magnet 8 to move, cutting the magnetic field lines of the coil 10 to achieve the initial conversion of sound energy into electrical energy.

[0026] like Figure 5 As shown, the triboelectric nanogenerator transducer of the acoustic nanogenerator component has a multi-layer composite structure: the top layer is a conductive FPE film 12, below which is a hollow insulating gasket 13, and below the gasket is a conductive perforated PLA film 14 that matches the size of the conductive FPE film 12. The outermost layer is fixed by a square clamp 15. Noise vibration can drive the conductive FPE film 12 and the conductive perforated PLA film 14 to rub against each other, further realizing the conversion of sound energy into electrical energy.

[0027] In this embodiment, the electrical energy generated by the device can be collected by wires to the road infrastructure power supply system and directly used for the operation of streetlights, monitoring equipment, etc. When a module is damaged, it can be disassembled and replaced separately without the need for complete dismantling, thus reducing maintenance costs.

[0028] This device is based on a stacked integrated structure and simultaneously realizes three major functions: solar energy recovery and power generation, sound energy recovery and power generation, and noise control. Its working principle can be divided into four core links: solar energy generation, sound energy generation, multi-stage noise reduction, and power collection and utilization. The links work together to form a comprehensive system of complementary power supply and efficient noise reduction.

[0029] Solar power generation

[0030] The single-sided photovoltaic power generation modules installed on the back of the device (the side facing away from the traffic noise source) adopt a modular tilted design to maximize the reception of solar radiation. When sunlight shines on the surface of the photovoltaic modules, the internal semiconductor materials generate the photovoltaic effect, directly converting solar energy into direct current. Moreover, the modules can be freely stacked as needed, and the power generation can be flexibly increased according to the sunlight conditions of the road section. The generated electricity will first be fed into the temporary energy storage unit.

[0031] Sound power generation

[0032] This process relies on the acoustic nano-power generation component at the innermost part of the device (closest to the traffic flow), and involves energy conversion in two stages:

[0033] The first stage: After the noise waves generated by the traffic flow enter the Helmholtz resonant cavity of the acoustic nano-power generation component, they cause mechanical vibration of the air and membrane structure inside the cavity, which drives the permanent magnet inside the cavity to move relative to the coil. Through the electromagnetic induction effect, the mechanical energy converted from sound energy is initially converted into electrical energy.

[0034] Second stage: The vibrations that have not been converted will be transmitted to the triboelectric nanogenerator transducer, driving the top conductive FPE film to rub against the bottom conductive perforated PLA film. With the help of the triboelectric nanogenerator effect, the remaining mechanical energy will be further converted into electrical energy.

[0035] The entire acoustic nano-power generation component adopts a modular splicing design, which enables the full-range and efficient recovery of acoustic energy.

[0036] Multi-stage noise reduction

[0037] While recovering sound energy, the device achieves stepped noise reduction through a multi-layered structure. The specific process is as follows:

[0038] Initial attenuation: While the noise sound wave completes energy conversion in the resonant cavity and transducer of the acoustic nano-power generation component, its sound energy intensity has been significantly attenuated.

[0039] Secondary absorption: The initially weakened sound waves enter the honeycomb polyester fiber environmentally friendly sound-absorbing material. The porous structure of this material can efficiently intercept the sound waves and achieve secondary dissipation of sound energy.

[0040] Vibration filtration: The damping layer inside the device changes the natural vibration frequency of the overall structure, filters the mechanical vibration transmitted through the metal back plate, avoids secondary noise caused by vibration, and ultimately achieves in-depth noise control.

[0041] Electricity collection and utilization

[0042] The electricity generated by the solar photovoltaic modules and acoustic nano-power generation modules will be collected into the energy storage and power distribution system of the device, which can be directly supplied to road lighting, traffic signal monitoring, speed measurement equipment and other traffic facilities along the route. In areas with weak power grids, the energy storage unit can also realize the peak-shifting of power distribution to ensure the stable operation of the facilities, realizing the transformation from "energy-consuming noise reduction facilities" to "energy-producing integrated facilities".

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sound barrier device based on solar and acoustic energy coupling power generation, characterized in that, It is divided into a rear photovoltaic power generation module (1) and a front acoustic nano-power generation module (2). Both the rear photovoltaic power generation module (1) and the front acoustic nano-power generation module (2) adopt a modular design. From the side away from the sound source to the side closer to the sound source, a single-sided photovoltaic power generation module (3), a metal back plate (4), a damping layer (5), an environmentally friendly sound-absorbing material (6), and an acoustic nano-power generation module (7) are arranged in sequence, forming a stacked integrated structure. The acoustic nano-power generation component (7) is provided with a protective shell (11) on the outside and has a hollow structure inside, which contains an acoustic-electric energy transducer composed of a permanent magnet (8), a membrane (9) and a coil (10); The triboelectric nanogenerator transducer of the acoustic nanogenerator assembly (7) has a multi-layer composite structure: the top layer is a conductive FPE film (12), a hollow insulating gasket (13) is provided below the conductive FPE film (12), a conductive perforated PLA film (14) matching the size of the conductive FPE film (12) is laid below the insulating gasket (13), and a square clamp (15) is provided on the outermost side of the conductive perforated PLA film (14).

2. The sound barrier device based on solar and acoustic energy coupling power generation according to claim 1, characterized in that, The single-sided photovoltaic power generation module (3) can be stacked freely according to the needs of the application scenario, and adopts a modular and tilted design.

3. A sound barrier device based on solar and acoustic energy coupling power generation according to claim 1, characterized in that, The environmentally friendly sound-absorbing material (6) is made of polyester fiber and has a honeycomb structure.

4. A sound barrier device based on solar and acoustic energy coupling power generation according to claim 1, characterized in that, The acoustic nano-power generation component (7) adopts a modular design and is spliced ​​to cover the inner side of the sound barrier.

5. A sound barrier device based on solar and acoustic energy coupling power generation according to claim 1, characterized in that, The sound barrier device can be configured as a semi-enclosed structure or a fully enclosed structure depending on the application scenario.

Images