Elevated noise barrier based on flexible perovskite photovoltaic modules

Abstract

An elevated noise barrier (1) based on flexible perovskite photovoltaic modules (2), relating to the technical field of solar photovoltaics, and comprising the elevated noise barrier (1) and the flexible perovskite photovoltaic modules (2). The flexible perovskite photovoltaic modules (2) are attached to the elevated noise barrier (1). By applying the flexible perovskite photovoltaic modules (2) to the elevated noise barrier (1), solar energy is utilized to generate electricity, so as to supply power to lighting, monitoring equipment, and the like on the elevated noise barrier (1), thereby achieving energy self-sufficiency, reducing the dependence on a conventional power grid, and lowering operating costs; and the defects of relatively large occupied space, a complex mounting process, and high construction cost when conventional solar modules are used are overcome.

Description

An elevated sound insulation strip based on flexible perovskite photovoltaic modules Technical Field

[0001] This utility model relates to the field of solar photovoltaic technology, specifically to a flexible perovskite solar module and its application in building-integrated energy systems, particularly suitable for building facades and roof designs. More specifically, it relates to an elevated sound insulation strip based on a flexible perovskite photovoltaic module. Background Technology

[0002] With the acceleration of urbanization, urban traffic congestion has become increasingly severe, making elevated roads a key infrastructure for alleviating traffic pressure. However, while bringing convenience, they also generate significant noise pollution, negatively impacting the quality of life and health of nearby residents. To address this issue, elevated sound barriers have been widely applied and promoted as an effective noise control measure.

[0003] Meanwhile, with the growth of global energy demand and the increasing awareness of environmental protection, solar energy, as a clean and renewable energy source, has received increasing attention and importance. In exploring the utilization of solar energy, combining solar technology with other infrastructure to achieve efficient energy use and environmentally friendly protection has become a current research hotspot.

[0004] Against this backdrop, a Chinese invention patent with publication number CN101892640A discloses a sound barrier structure with solar modules, including a sound barrier foundation located on an elevated road or highway, and solar cell module modules connected in series on the foundation. Each solar cell module includes a base frame, and at least one solar cell module is mounted on the base frame; the solar cell module is an amorphous silicon solar cell module. This technical solution installs amorphous silicon solar cell modules on the sound barrier, allowing the modules to fully absorb solar energy and convert it into electrical energy. The converted electrical energy can be fed into the power grid or connected to LED light strips on the elevated road to provide them with power.

[0005] However, while the aforementioned technical solutions have achieved a certain degree of integration between solar energy and sound barriers, the use of amorphous silicon solar cell modules also has some significant drawbacks. Due to the inherent characteristics of amorphous silicon solar cell modules, they need to be mounted on a base frame to be used as solar cell modules in sound barriers. This results in a large space occupation for the entire structure, a complex installation process, and relatively high construction costs.

[0006] Currently, flexible perovskite photovoltaic modules have been widely used in many fields due to their advantages such as self-adhesion, thinness, flexibility, and low cost. These advantages have also brought new opportunities for the application of flexible perovskite photovoltaic modules in elevated sound insulation strips. Summary of the Invention

[0007] To address this issue in practical applications, the present invention aims to propose an elevated sound insulation strip based on flexible perovskite photovoltaic modules. By assembling photovoltaic power generation devices onto the elevated sound insulation strip, it helps reduce manufacturing quality costs and maintenance costs during use. It also provides an easily acceptable and widely applicable photovoltaic retrofit solution for existing building glass and exterior walls. Simultaneously, the electricity generated by this flexible perovskite photovoltaic module can be used for energy self-sufficiency on elevated highways, reducing resource waste in traditional power grid models. The specific solution is as follows:

[0008] An elevated sound insulation strip based on a flexible perovskite photovoltaic module includes an elevated sound insulation strip and a flexible perovskite photovoltaic module, wherein the flexible perovskite photovoltaic module is attached to the elevated sound insulation strip.

[0009] Furthermore, the flexible perovskite photovoltaic module is attached to the upper half and / or top of the elevated sound insulation strip.

[0010] Furthermore, when the flexible perovskite photovoltaic module is located in the Northern Hemisphere, the arrangement angle of the flexible perovskite photovoltaic module is within ±15° of the local latitude.

[0011] Furthermore, when the elevated road runs east-west, the flexible perovskite photovoltaic module is arranged perpendicular to the direction of the elevated road;

[0012] When the elevated road runs north-south, the flexible perovskite photovoltaic module is arranged at an angle to the elevated road and faces due south or southwest.

[0013] Furthermore, the flexible perovskite photovoltaic module is connected to a storage battery, elevated highway electrical equipment, and power grid via a power conversion process.

[0014] Furthermore, the flexible perovskite photovoltaic module is connected to a battery via a photovoltaic controller.

[0015] Furthermore, the battery is connected to DC power equipment on the elevated highway.

[0016] Furthermore, the flexible perovskite photovoltaic module or the battery is connected to AC power equipment on the elevated highway via an inverter.

[0017] Furthermore, the flexible perovskite photovoltaic module or the battery is connected to a grid-connected device via an inverter, and the grid-connected device is connected to the power grid.

[0018] Furthermore, the battery is placed in an equipment box or equipment room near the elevated sound insulation strip, in the nearby ground area, or near the elevated bridge pier.

[0019] Furthermore, the elevated highway electrical equipment includes lighting equipment, indicator equipment, monitoring equipment, communication equipment, sensing equipment, power supply equipment, toll collection system equipment, emergency call system, ventilation and lighting control system, and monitoring center equipment.

[0020] Furthermore, the flexible perovskite photovoltaic module includes a flexible substrate layer with self-adhesive function.

[0021] Furthermore, the flexible perovskite photovoltaic module is non-transparent to adapt to elevated soundproof areas where light transmission is not required.

[0022] Furthermore, the flexible perovskite photovoltaic module is semi-transparent to adapt to elevated soundproof areas that require light transmission.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] (1) By applying flexible perovskite photovoltaic modules to elevated sound barriers, solar energy is used to generate electricity for lighting, monitoring equipment and other equipment on the elevated sound barriers, thereby achieving energy self-sufficiency, reducing dependence on the traditional power grid and reducing operating costs; and by utilizing the self-adhesive, thin, flexible and low-cost characteristics of flexible perovskite, it can be used as building stickers, which is convenient for construction and operation, and overcomes the defects of traditional solar modules that occupy a large space, have a complicated installation process and high construction costs.

[0025] (2) By attaching flexible perovskite photovoltaic modules to elevated sound insulation strips, the noise reduction function of elevated sound insulation strips can be assisted to a certain extent. The structure and materials of flexible perovskite photovoltaic modules can reflect and absorb sound waves, further reducing the impact of noise on the surrounding environment and improving the living comfort of nearby residents. Attached Figure Description

[0026] Figure 1 is a schematic diagram of the layer structure of the flexible perovskite photovoltaic module of this utility model;

[0027] Figure 2 is a schematic diagram of the overall circuit connection of this utility model.

[0028] Reference numerals: 1. Elevated sound barrier; 2. Flexible perovskite photovoltaic module; 21. First outer protective layer; 22. Flexible substrate; 23. First electrode layer; 24. First charge transport layer; 25. Perovskite layer; 26. Second charge transport layer; 27. Buffer layer; 28. Second electrode layer; 29. ​​Second outer protective layer; 3. Battery; 4. Elevated highway electrical equipment; 5. Power grid. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0030] An elevated sound insulation strip based on a flexible perovskite photovoltaic module, as shown in Figure 2, includes an elevated sound insulation strip 1 and a flexible perovskite photovoltaic module 2. The flexible perovskite photovoltaic module 2 is attached to the elevated sound insulation strip 1 and is connected to a battery 3, an elevated highway electrical equipment 4, and the State Grid 5.

[0031] In the scheme of combining flexible perovskite photovoltaic module 2 with elevated sound insulation strip 1, the flexible perovskite photovoltaic module 2 is attached to the elevated sound insulation strip 1 using its self-adhesive function. After absorbing sunlight, the flexible perovskite photovoltaic module 2 generates photocurrent, i.e., direct current. The direct current can be stored in the battery 3 or used to power some of the elevated highway electrical equipment 4, or the direct current can be converted into alternating current and connected to the elevated highway electrical equipment 4 and the national power grid 5, directly outputting the voltage and current required by the elevated highway electrical equipment 4. This can achieve energy self-sufficiency while saving solar photovoltaic module installation space, reducing dependence on the traditional power grid and lowering operating costs.

[0032] The structure of the flexible perovskite photovoltaic module 2 is shown in Figure 1, including a first outer protective layer 21, a flexible substrate 22, a first electrode layer 23, a first charge transport layer 24, a perovskite layer 25, a second charge transport layer 26, a buffer layer 27, a second electrode layer 28, and a second outer protective layer 29 stacked together.

[0033] The first outer protective layer 21 is a transparent, weather-resistant polymer film that effectively resists ultraviolet radiation, moisture, and mechanical damage. The flexible substrate 22 uses substrates such as PET, PEN, and PI. The first electrode layer 23 is a flexible, transparent conductive film layer, including metal oxide conductive films such as ITO, IWO, and IZO, as well as materials such as silver nanowires. The first charge transport layer 24 uses electron transport layer materials such as SnO2 or hole transport layer materials such as SAMs, NiOx, and PTAA. The perovskite layer 25 uses a perovskite material with tunable composition, including elements such as Cs, MA, FA, Pb, I, Br, and Cl, mixed in a certain proportion; it is prepared by spin coating, blade coating, or slot coating methods; as this is existing technology, its specific details will not be elaborated further. The second charge transport layer 26 uses hole transport layer materials such as NiOx and spiro-OMeTAD or electron transport layer materials such as C60, PCBM, and C70. The buffer layer 27 is made of materials such as BCP, MoOx, and SnO2. The second electrode layer 28 is made of opaque metal electrodes such as Ag, Au, and Cu, or conductive thin films of metal oxides such as ITO, IWO, and IZO, silver nanowires, and flexible transparent conductive thin film layers such as multilayer composite transparent materials (e.g., ITO / Cu / ITO). The second outer protective layer 29 adopts a composite design of thermosetting polymer and nano-waterproof membrane to enhance its weather resistance.

[0034] Because the flexible substrate 22 of the flexible perovskite module has a self-adhesive function, the flexible perovskite module can be used as a building sticker and attached to the elevated sound insulation strip 1, thereby realizing the integrated use of the building. Compared with traditional solar modules, it not only eliminates the need for separate installation racks, saving installation materials, but also solves the defects of large space occupation, complex installation process and high construction cost.

[0035] When installing the flexible perovskite photovoltaic module 2, depending on its installation location, it can be attached to the upper half and / or top of the elevated sound barrier 1. Preferably, the flexible perovskite photovoltaic module 2 is attached to the upper half of the elevated sound barrier 1. This not only matches the curved surface of the sound barrier, resulting in a better overall appearance, but also reduces the impact of water splashes and dust from passing vehicles on the solar panels, and to some extent avoids shading from ground buildings or other objects. Furthermore, for elevated sound barriers 1 with relatively open top space and suitable structures, the flexible perovskite photovoltaic module 2 can be placed on top, for example, using a top-mounted installation method, utilizing the existing road sound barrier as a support structure. This avoids the sound barrier's own shadow being cast onto the photovoltaic module, thus preventing it from affecting power generation efficiency.

[0036] Regarding its installation angle: From a geographical perspective, the angle is adjusted according to the local latitude and season to optimize solar radiation absorption. When the flexible perovskite photovoltaic module 2 is located in the Northern Hemisphere, its installation angle is within ±15° of the local latitude to maximize year-round solar energy acquisition.

[0037] In terms of road orientation, when the elevated road runs east-west, the flexible perovskite photovoltaic module 2 is arranged perpendicular to the direction of the elevated road, so that the flexible perovskite photovoltaic module 2 can receive sunlight well in the morning and afternoon; when the elevated road runs north-south, the flexible perovskite photovoltaic module 2 is arranged at an angle to the elevated road and faces due south or southwest to obtain more solar radiation. The specific tilt angle can be adjusted according to the actual situation.

[0038] Furthermore, the flexible perovskite photovoltaic module 2 is non-transparent. For areas where light transmission is not required, the non-transparent flexible perovskite module can meet the needs. Example 2

[0039] As shown in Figure 2, the flexible perovskite photovoltaic module 2 is connected to the battery 3 via a photovoltaic controller. The photovoltaic controller is not shown in the figure. The direct current generated by the flexible perovskite photovoltaic module 2 is first input to the photovoltaic controller. The photovoltaic controller regulates and controls the electrical energy output by the flexible perovskite photovoltaic module 2 to prevent overcharging and over-discharging of the battery 3, thus protecting the battery bank 3. After regulation by the photovoltaic controller, the direct current is then output to the battery 3 to charge it.

[0040] Preferably, the battery 3 is placed in an equipment box or equipment room in a specific area. These specific areas are usually located on the ground below or near the elevated sound insulation strip 1, or possibly near the elevated bridge piers, to facilitate connection with the flexible perovskite photovoltaic module 2 and other electrical equipment, while also facilitating maintenance and management.

[0041] Flexible perovskite photovoltaic modules 2 or batteries 3 are connected to elevated highway electrical equipment 4 or the national power grid 5 to provide power, specifically:

[0042] For some DC-powered elevated highway electrical equipment 4, such as some new LED streetlights, if their operating voltage matches the output voltage of the flexible perovskite photovoltaic module 2, necessary voltage stabilization and filtering circuits can be added to the output terminal of the flexible perovskite photovoltaic module 2. The flexible perovskite photovoltaic module 2 or the battery 3 can then be directly connected to the DC-powered elevated highway electrical equipment to directly power these devices.

[0043] For elevated highway electrical equipment 4 that uses AC power, such as surveillance cameras and traffic lights, the flexible perovskite photovoltaic module 2 or the battery 3 is connected to the elevated highway AC electrical equipment via an inverter. The inverter converts the DC power output from the flexible perovskite photovoltaic module 2 or the battery 3 into AC power, which is then transmitted to the elevated highway electrical equipment 4 through switches and protection devices in the distribution cabinet. In addition, the distribution cabinet is equipped with a metering device to record the amount of electricity supplied by the flexible perovskite photovoltaic module 2 to the elevated highway electrical equipment 4. The inverter and distribution cabinet are existing technologies and are not shown in the figure.

[0044] The elevated highway electrical equipment 4 includes, but is not limited to, lighting equipment, indicator equipment, monitoring equipment, communication equipment, sensing equipment, power supply equipment, toll collection system equipment, emergency call system, ventilation and lighting control system, and monitoring center equipment. Specifically: Lighting equipment: used to ensure nighttime driving safety. Indicator equipment: such as traffic lights and signs, used to guide and manage traffic flow. Monitoring equipment: including cameras and sensors, used to monitor traffic conditions and environmental changes on the elevated highway in real time. Communication equipment: such as radio and fiber optic communication systems, used for information transmission between elevated highway management departments. Sensing equipment: used to detect data such as road surface conditions, vehicle speed, and traffic flow. Power supply equipment: such as transformers and distribution boxes, used to provide and distribute power. Toll collection system equipment: including automatic toll machines and manual toll booths, used to collect tolls from vehicles. Emergency call system: such as emergency telephones and help buttons, used to send distress signals to relevant departments in the event of an accident or other emergency. Ventilation and lighting control system: mainly used in highway tunnels to ensure air quality and lighting conditions within the tunnels. Monitoring center equipment includes large displays, control consoles, and computer systems, used for centralized monitoring and management of the overall operation of the elevated highway. In general, the elevated sound barrier 1 is reused by generating electricity through the integration of flexible perovskite photovoltaics with buildings.

[0045] Furthermore, the connection point between the flexible perovskite photovoltaic module 2 and the elevated highway electrical equipment 4 is preferably located at the power input end of the equipment, such as in the distribution box at the bottom of the lamp post, like a street light, while the monitoring equipment is located in the power box or control box nearby.

[0046] For the flexible perovskite photovoltaic module 2 to supply power to the State Grid 5, the flexible perovskite photovoltaic module 2 or the battery 3 is connected to the grid-connected equipment via an inverter, and the grid-connected equipment is connected to the State Grid 5. The DC power output from the flexible perovskite photovoltaic module 2 is first converted to AC power by the inverter. The converted AC power must meet the power quality standards of the State Grid 5, including matching of parameters such as voltage, frequency, and phase. Then, through grid-connected switches, metering devices, protection devices, and other equipment, the power is connected to the low-voltage or medium-voltage side lines of the State Grid 5. Preferably, the power generated by the flexible perovskite photovoltaic module 2 is connected to the State Grid 5 at a power access point such as a substation or distribution room. In elevated highway scenarios, a nearby substation of the State Grid 5 or a nearby distribution facility is generally selected as the connection point.

[0047] Furthermore, a communication connection has been established to monitor and manage the grid connection process. Through communication equipment, operational data from the flexible photovoltaic system, such as power generation, voltage, and current, are transmitted to the monitoring center of Grid 5. Grid 5 can then remotely control and schedule the photovoltaic system based on this data, ensuring the stable operation of Grid 5. Example 3

[0048] The flexible perovskite photovoltaic module 2 can be fabricated in a semi-transparent form. This semi-transparent form is designed to accommodate elevated soundproof strip areas requiring light transmission, thus preventing the installation of the flexible perovskite module from affecting the light transmission function of the elevated soundproof strip 1 itself. In one possible embodiment, the total thickness of the perovskite cell module can be reduced by thinning each layer, achieving a semi-transparent state. It should be noted that this fabrication process is prior art and will not be elaborated upon here.

[0049] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An elevated sound insulation strip based on flexible perovskite photovoltaic modules, comprising an elevated sound insulation strip, characterized in that, It also includes flexible perovskite photovoltaic modules, which are attached to the elevated sound insulation strip.

2. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The flexible perovskite photovoltaic module is attached to the upper half and / or top of the elevated sound insulation strip.

3. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, When the flexible perovskite photovoltaic module is located in the Northern Hemisphere, the arrangement angle of the flexible perovskite photovoltaic module is within ±15° of the local latitude.

4. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, When the elevated road runs east-west, the flexible perovskite photovoltaic module is arranged perpendicular to the direction of the elevated road. When the elevated road runs north-south, the flexible perovskite photovoltaic module is arranged at an angle to the elevated road and faces due south or southwest.

5. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The flexible perovskite photovoltaic module is connected to a storage battery, elevated highway electrical equipment, and power grid via power conversion.

6. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 5, characterized in that, The flexible perovskite photovoltaic module is connected to a battery via a photovoltaic controller.

7. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 5, characterized in that, The battery is connected to the DC power equipment of the elevated highway.

8. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 5, characterized in that, The flexible perovskite photovoltaic module or the battery is connected to AC power equipment on the elevated highway via an inverter.

9. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 5, characterized in that, The flexible perovskite photovoltaic module or the battery is connected to a grid-connected device via an inverter, and the grid-connected device is connected to the power grid.

10. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The battery is placed in an equipment box or equipment room near the elevated sound insulation strip, in the nearby ground area, or near the elevated bridge pier.

11. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The elevated highway electrical equipment includes lighting equipment, indicator equipment, monitoring equipment, communication equipment, sensing equipment, power supply equipment, toll collection system equipment, emergency call system, ventilation and lighting control system, and monitoring center equipment.

12. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The flexible perovskite photovoltaic module includes a flexible substrate layer with self-adhesive function.

13. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The flexible perovskite photovoltaic module is non-transparent to accommodate elevated soundproof areas where light transmission is not required.

14. The elevated sound insulation strip based on flexible perovskite photovoltaic modules according to claim 1, characterized in that, The flexible perovskite photovoltaic module is semi-transparent to fit elevated soundproof areas that require light transmission.

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