Flexible perovskite street lamp

Abstract

The utility model discloses a flexible perovskite street lamp, which relates to the field of solar photovoltaic technology, and comprises a street lamp and a flexible perovskite solar cell module, and the flexible perovskite solar cell module is attached to the street lamp. According to the utility model, the flexible perovskite solar cell module is combined on the street lamp, and the flexible perovskite solar cell module has the characteristics of high cell efficiency, strong adaptability to weak light conditions, lighter weight, good toughness, strong bendability and lower cost, so that not only is solar power generation with high energy conversion realized, but also energy self-sufficiency is realized; compared with a traditional solar power generation technology, the solar street lamp is more convenient to transport and install, can be used on the surfaces of various street lamps, can reduce occupied installation space around the street lamps, and is low in cost and environmentally friendly.

Description

Technical Field

[0001] This utility model relates to the field of solar photovoltaic technology, and more specifically, it relates to a flexible perovskite street light. Background Technology

[0002] With the development of technology, solar lighting equipment has gradually replaced traditional lighting equipment, becoming a symbol of environmental protection and energy conservation. However, most mainstream solar streetlights on the market currently rely on traditional crystalline silicon solar cells. Although crystalline silicon cell technology has become relatively mature and stable after a long period of development, it still has many drawbacks: low low-light performance, heavy weight causing inconvenience in installation and maintenance, high cost of silicon wafers, poor flexibility, and difficulty in application on irregular surfaces.

[0003] For example, a Chinese invention patent with publication number CN101749630A discloses a solar street light, including a lamp post, a solar panel, a battery, a control module, a base, a lamp tube, and a lamp tube controller. The input terminal of the battery control module is connected to the solar panel. The solar panel is a monocrystalline silicon solar cell, mounted on the lamp post. While this technical solution combines solar energy with street light power supply technology, it uses a monocrystalline silicon solar panel and requires mounting on the lamp post. This design not only makes installation and maintenance inconvenient due to its weight but also occupies space around the street light, reducing its adaptability to different installations.

[0004] In recent years, perovskite solar cells have emerged as a new research hotspot in the field of solar cells, demonstrating significant advantages over traditional crystalline silicon cells. In particular, perovskite cells exhibit high photoelectric conversion efficiency under low light conditions, offering new possibilities for improving the performance of solar streetlights.

[0005] A Chinese utility model patent with publication number CN214790851U discloses a solar street light based on a perovskite solar panel. The light includes a street light pole with street light holders fixedly connected to the top of both sides. Each street light holder contains a street light bulb. A mounting plate is fixedly connected to the center of one side of the street light pole, and a through groove is formed at the center of one side of the mounting plate. A solar panel is fixedly installed inside the through groove. This solar panel is a perovskite solar panel. Although this technical solution discloses the technology of combining perovskite solar cells with street lights, it still uses a plate-shaped perovskite solar panel. Its installation method is similar to that of traditional crystalline silicon solar panels, and it also suffers from problems such as heavy weight, inconvenient installation and maintenance, large space occupation, and poor adaptability.

[0006] Currently, with in-depth research on perovskite solar cells, the emergence of flexible perovskite solar cells has further expanded their application prospects. Compared with traditional crystalline silicon solar panels or perovskite solar panels, flexible perovskite solar cells also have significant advantages such as lighter weight, greater toughness, ease of adhesion to irregular surfaces, and lower manufacturing costs. Therefore, developing smart streetlights based on flexible perovskite solar cells has important social and economic significance. Utility Model Content

[0007] To address this problem in practical applications, the present invention aims to propose a flexible perovskite street light. By applying flexible perovskite solar cells to street lights, it not only solves the technical bottlenecks of traditional solar street lights but also enables an energy-saving, efficient, and sustainable road lighting system through intelligent design. The specific solution is as follows:

[0008] A flexible perovskite street light includes a street light and a flexible perovskite solar cell module, the flexible perovskite solar cell module being attached to the street light.

[0009] Furthermore, the street light includes a lamp and a lamp post, and the flexible perovskite solar cell module is attached to the lamp and / or the lamp post.

[0010] Furthermore, the flexible perovskite solar cell module is attached to the top of the lamp, and an automatic adjuster is installed at the connection between the lamp and the lamp post, the automatic adjuster being used to automatically adjust the tilt angle of the lamp.

[0011] Furthermore, the flexible perovskite solar cell module is attached to and wound around the outer surface of the lamp post, completely surrounding the outer surface of the lamp post.

[0012] Furthermore, the flexible perovskite solar photovoltaic module is attached to and wound around the outer surface of the lamp post, partially surrounding the outer surface of the lamp post, and the lamp post has an automatically rotatable structure.

[0013] Furthermore, the flexible perovskite solar cell module is attached to the street light using adhesives and / or screws.

[0014] Furthermore, the flexible perovskite solar cell module is connected to the energy storage system or connected to the energy storage system via an inverter.

[0015] Furthermore, the energy storage system is also connected to an intelligent management system, which includes several sensors and a host controller, with the sensors communicatively connected to the host controller.

[0016] Furthermore, the energy storage system is also connected to the municipal power grid.

[0017] Furthermore, it also includes a USB charging port located on the energy storage system, as well as an environmental monitoring module and wireless network coverage equipment connected to the energy storage system.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In this invention, flexible perovskite solar cell modules are integrated into streetlights. These modules offer high efficiency and strong adaptability to low-light conditions, enabling high-energy-conversion solar power generation, achieving energy self-sufficiency, and saving operating costs. Furthermore, the lighter weight of flexible perovskite solar cell modules compared to traditional crystalline silicon cells facilitates transportation and installation, reducing installation costs. Additionally, the good toughness and flexibility of flexible perovskite solar cell modules allow them to be used on various streetlight surfaces, reducing the space occupied around the streetlight compared to traditional panel installations. Moreover, flexible perovskite solar cell modules are low-cost and environmentally friendly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structural composition of the flexible perovskite solar cell module in this utility model;

[0021] Figure 2 This is an installation diagram of embodiments 1 and 2 of this utility model;

[0022] Figure 3 This is an installation diagram of Embodiment 3 of the present invention;

[0023] Figure 4 This is an installation diagram of Embodiment 4 of the present invention;

[0024] Figure 5 This is a schematic diagram of the system connection in Embodiment 5 of this utility model.

[0025] Reference numerals: 1. Flexible perovskite solar cell module; 11. First outer protective layer; 12. Flexible substrate; 13. Transparent conductive electrode; 14. First charge transport layer; 15. First interface modification layer; 16. Perovskite layer; 17. Second interface modification layer; 18. Second charge transport layer; 19. Electrode layer; 110. Second outer protective layer; 2. Street light; 21. Light fixture; 22. Lamp post; 3. Automatic regulator; 4. Inverter; 5. Energy storage system; 6. Power grid; 7. Intelligent management system. Detailed Implementation

[0026] 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.

[0027] like Figure 1 As shown, the flexible perovskite solar cell module 1 includes a first outer protective layer 11, a flexible substrate 12, a transparent conductive electrode 13, a first charge transport layer 14, a first interface modification layer 15, a perovskite layer 16, a second interface modification layer 17, a second charge transport layer 18, an electrode layer 19, and a second outer protective layer 110, all stacked together. The first outer protective layer 11 and the second outer protective layer 110 prevent the intrusion of moisture, oxygen, and other corrosive substances without affecting the photoelectric conversion efficiency and stability of the cell module. They employ a composite design of thermosetting polymers and a nano-waterproof membrane to enhance weather resistance. The flexible substrate 12 is made of materials such as PET, PI, or PEN. The transparent conductive electrode 13 conducts electricity; its material can be ITO, IWO, IZO, AZO, etc., and it can be prepared by sputtering methods (magnetron sputtering and ion beam sputtering, etc.), vacuum evaporation coating, PVD (physical vapor deposition), etc. The first charge transport layer 14 and the second charge transport layer 18 can be either hole transport layers or electron transport layers. The main function of the hole transport layer is to promote the transport of photogenerated holes from the perovskite layer 16 to the bottom electrode, while blocking the reverse flow of electrons. Common materials include organic materials such as P3HT, PTAA, Spiro-OMeTAD, and SAMs, as well as inorganic materials such as NiOx. Spin coating, spray coating, and vapor deposition methods can be used. The electron transport layer transports electrons and blocks holes. Commonly used materials include TiO2, ZnO, SnO2, and C60. Preparation methods include thermal evaporation, chemical vapor deposition, and physical vapor deposition (e.g., PVD). The first interface modification layer 15 and the second interface modification layer 17 optimize the interfacial contact between the hole transport layer / electron transport layer and the perovskite layer 16, passivate interfacial defects, and reduce non-radiative recombination and ion migration. Organic salts, metal salts, and small organic molecules are commonly used, and methods such as spin coating, blade coating, slot coating, and film deposition can be used for preparation. The function of electrode layer 19 is to conduct current. It is usually made of metals such as Au, Ag, Al, Cu, and carbon materials such as graphene. The preparation methods include physical vapor deposition (sputtering, evaporation, etc.) and chemical vapor deposition.

[0028] The flexible perovskite solar cell module 1 is based on this structure, which makes it lightweight, flexible, easy to attach to irregular surfaces, and inexpensive to manufacture.

[0029] It should be noted that the flexible perovskite solar cell module 1 is an existing technology, and this structural composition is only one embodiment given in this application. This application does not limit it.

[0030] Example 1

[0031] like Figure 2 As shown, a flexible perovskite street light includes a street light 2 and a flexible perovskite solar cell module 1, which is attached to the street light 2.

[0032] The street light 2 includes a lamp 21 and a lamp post 22, and the flexible perovskite solar cell module 1 can be attached to the lamp 21 and / or the lamp post 22.

[0033] The technical solution of integrating a flexible perovskite solar cell module 1 into a street lamp 2 allows the flexible perovskite solar cell module 1 to be attached to the irregular surface of the street lamp 2 due to its flexibility. Because the flexible perovskite solar cell module 1 is lighter than traditional crystalline silicon cells or panel perovskite solar panels, it is easier to transport and install, and can be directly attached to the surface of the street lamp 2 without occupying space around the street lamp 2, resulting in a simpler and more aesthetically pleasing design.

[0034] During installation, the flexible perovskite solar cell module 1 is attached and fixed to the surface of the street lamp 2 using adhesive. For added stability, screws can also be used to secure it to the street lamp 2. Preferably, PI adhesive can be used.

[0035] After absorbing sunlight, the flexible perovskite solar cell module 1 generates photocurrent, i.e., direct current, which can be used by streetlights 2 or surrounding equipment, achieving energy self-sufficiency and reducing operating costs.

[0036] Example 2

[0037] In this embodiment, as Figure 2 As shown, the flexible perovskite solar cell module 1 is attached to the irregular top of the lamp 21. In order to maximize the energy collection efficiency of the flexible perovskite solar cell module 1, an automatic adjuster 3 is installed at the connection between the lamp 21 and the lamp post 22. The automatic adjuster 3 is used to automatically adjust the tilt angle of the lamp 21 according to the local latitude. During the day when generating electricity, it tilts at the set tilt angle to improve the power generation efficiency. At night, it is adjusted to the normal tilt angle for normal lighting work.

[0038] It should be noted that the automatic regulator 3 is prior art and will not be described in detail here. The automatic regulator 3 can also be powered by the electrical energy generated by the flexible perovskite solar cell module 1. Furthermore, the operation of the automatic regulator 3 can be automatically controlled by a controller, which will also not be described in detail here.

[0039] Example 3

[0040] In this embodiment, as Figure 3As shown, the flexible perovskite solar cell module 1 is attached to and wound around the outer surface of the lamp post 22, completely surrounding the outer surface of the lamp post 22. This fully enclosed installation method helps to achieve all-around energy collection, thereby maximizing the energy collection efficiency of the solar cell.

[0041] Example 4

[0042] In this embodiment, as Figure 4 As shown, the flexible perovskite solar photovoltaic module is attached to and wound around the outer surface of the lamp post 22, partially surrounding the outer surface of the lamp post 22, and the lamp post 22 has an automatically rotating structure. The automatically rotating lamp post 22 can be driven by a motor to achieve rotation, etc., which will not be listed here. The automatically rotating lamp post 22, along with components such as a photosensor and controller, allows the flexible perovskite solar cell module 1 to rotate in sync with the angle of sunlight, maximizing the energy harvesting efficiency of the solar cells.

[0043] The automatic rotation drive source of the lamp post 22, such as a motor, can also be powered by the electrical energy generated by the flexible perovskite solar cell module 1.

[0044] Example 5

[0045] In this embodiment, as Figure 5 As shown, the flexible perovskite solar cell module 1 is connected to the energy storage system 5 or connected to the energy storage system 5 via the inverter 4. The energy storage system 5 can use high-density lithium batteries or other energy storage devices to store the electrical energy converted from solar energy during the day, ensuring the stability of power supply at night.

[0046] The energy storage system 5 can be installed on the ground near the street light 2 to save space, or it can store energy uniformly, storing the energy generated by the flexible perovskite solar cell modules 1 on all the street lights 2 in a certain area, which is convenient for management.

[0047] The energy storage system 5 is also connected to the municipal power grid 6, with the aim of connecting to the grid 6 in situations of prolonged cloudy or rainy weather without sunlight, so that it can be used as a backup energy source when necessary.

[0048] The energy storage system 5 is also connected to the intelligent management system 7. The intelligent management system 7 includes several sensors and a host controller, with the sensors communicating with the host controller. The host controller can be a computer or other host computer. The sensors include voltage and current sensors connected to the energy storage system 5, used to detect the energy storage status of the energy storage system 5 and transmit the detected information to the host controller. The host controller then determines whether the power grid 6 is needed for power transmission. It can also detect the overall power generation of the streetlight 2 by monitoring the stored energy and, based on this data, adjusts the tilt angle of the light fixture 21 to maximize energy efficiency. In addition, the sensors also include infrared or sound sensors connected to the energy storage system 5, used to determine whether there are pedestrians or vehicles near the streetlight 2. If no one or vehicles are present, the host controller can control the power outage to save electricity.

[0049] In addition, it should be noted that the application of sensors is not limited to this. In actual use, the type of sensor to be used can be selected and determined according to the site conditions in order to expand its functions in many ways.

[0050] Example 6

[0051] In this embodiment, the energy storage system 5 is also equipped with a USB charging port for charging; and the energy storage system 5 is also connected to an environmental monitoring module and a wireless network coverage device, which can be used to realize environmental monitoring and wireless network coverage.

[0052] 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. A flexible perovskite street light comprising a street light, characterized in that, The application further discloses a flexible perovskite solar cell module attached to the street lamp.

2. The flexible perovskite street light of claim 1, wherein, The street lamp comprises a lamp and a lamp post, and the flexible perovskite solar cell module is attached to the lamp and / or the lamp post.

3. The flexible perovskite street light of claim 2, wherein, The flexible perovskite solar cell module is attached to the top of the lamp, and an automatic adjuster is installed at the joint between the lamp and the lamp post, which is used for automatically adjusting the inclination angle of the lamp.

4. The flexible perovskite street light of claim 2, wherein, The flexible perovskite solar cell module is attached to and wound around the outer surface of the lamp post, and completely surrounds the outer surface of the lamp post.

5. The flexible perovskite street light of claim 2, wherein, The flexible perovskite solar cell module is attached to and wound around the outer surface of the lamp post, and partially surrounds the outer surface of the lamp post, and the lamp post is a rotatable structure.

6. The flexible perovskite street light of claim 1, wherein, The flexible perovskite solar cell module is attached to the street lamp by means of an adhesive and / or screws.

7. The flexible perovskite street light of claim 1, wherein, The flexible perovskite solar cell module is connected to the energy storage system or connected to the energy storage system through an inverter.

8. The flexible perovskite street light of claim 7, wherein, The energy storage system is further connected to an intelligent management system, and the intelligent management system comprises a plurality of sensors and an upper controller, and the plurality of sensors are communicatively connected to the upper controller.

9. The flexible perovskite street light of claim 8, wherein, The energy storage system is further connected to a municipal power grid.

10. The flexible perovskite street light of claim 9, wherein, The application further discloses a USB charging interface arranged on the energy storage system, an environmental monitoring module connected to the energy storage system and a wireless network coverage device.

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