Pavement plate structure for photovoltaic and friction nano-composite power generation

Abstract

The utility model discloses a photovoltaic and friction nanometer composite power generation pavement plate structure, which mainly comprises an anti-skid light-transmitting surface layer, a photovoltaic power generation layer, a honeycomb friction nanometer power generation layer and an electric base layer from top to bottom, all the structural layers are tightly combined by bonding materials, and a plurality of plate units can be assembled to form an integral structure. The pavement structure is paved on a surface layer or a load-bearing base layer of a traditional pavement structure, not only can meet various pavement performance indexes, but also can utilize solar energy and mechanical energy generated by automobile vibration to generate electricity in a combined mode, and can overcome the defect that a traditional solar pavement is not high in power generation efficiency at night, in cloudy and rainy weather and when the traffic flow is large. The energy harvesting capability of the road surface is fully exerted, and the development requirement of green traffic is met.

Description

Technical Field

[0001] The utility model relates to the fields of road engineering and energy collection technology, and in particular to a pavement plate structure based on photovoltaic and friction nanocomposite power generation. Background Art

[0002] To address the increasingly severe global energy shortage and climate change, accelerating the development and utilization of renewable energy sources such as solar and wind power is crucial for protecting the ecological environment, addressing climate change, improving the energy structure, and achieving sustainable economic and social development. However, traditional energy harvesting facilities require significant land resources and long-distance deployment results in significant losses, constraining their development.

[0003] Making full use of my country's abundant road resources to carry out road energy collection and utilization will significantly improve the above problems. Making full use of solar energy resources in the road field can not only solve the shortcomings of traditional roads that occupy a large area and have a single function, but also provide power support for road ancillary facilities (such as street lights, traffic lights and speed radars, etc.), electric vehicle charging facilities, road intelligent sensing equipment, smart traffic control equipment, etc., to meet the construction goals of intelligent and green roads.

[0004] However, vehicle shadows and rainy weather can prevent traditional photovoltaic pavements from achieving their expected power generation performance. Harvesting the vibration energy generated by moving vehicles could further enhance the pavement's energy capture capabilities. Numerous studies have demonstrated the significant advantages of triboelectric nanopower generation technology in harvesting low-frequency, irregular vibration energy. Therefore, it is particularly important to consider designing a pavement plate structure based on a hybrid photovoltaic and triboelectric nanopower generation approach to improve pavement energy harvesting efficiency. Utility Model Content

[0005] In view of this, the present invention aims to provide a new pavement plate structure based on photovoltaic and friction nanocomposite power generation technology with simple structure, excellent road performance and high power generation efficiency.

[0006] In order to solve the above problems and other key technical problems, the present invention adopts the following technical solutions: a photovoltaic and friction nano-composite power generation pavement plate structure, the unit includes at least the following structural layers from top to bottom: an anti-slip and light-transmitting surface layer, a photovoltaic power generation layer, a honeycomb friction nano-power generation layer, and an electrical base layer. The structural layers are tightly bonded into a whole by bonding, anchoring or bolting, and are directly laid on the surface of a traditional pavement structure or a load-bearing base layer.

[0007] Optionally, the pavement plate structure based on photovoltaic and friction nanocomposite power generation is preferably a rectangular parallelepiped structure, the thickness of which should be controlled within 30 to 100 mm, and the plane size should be controlled within 0.01 to 16 m.2 .

[0008] Optionally, the plate structure can be used in highways, urban main roads, sidewalks and parking areas, and its thickness consists of an anti-slip and light-transmitting surface layer thickness of 5 to 30 mm, a photovoltaic power generation layer thickness of 5 to 10 mm, a honeycomb friction nano-power generation layer thickness of 10 to 30 mm and an electrical base layer thickness of 10 to 30 mm (excluding the thickness of the adhesive material).

[0009] Optionally, the anti-slip and light-transmitting surface layer can be made of any one of polymethyl methacrylate, polycarbonate, light-transmitting resin, and tempered glass, and a concave or convex dot-shaped or strip-shaped anti-slip texture is formed on its upper surface through an etching process.

[0010] Optionally, the photovoltaic power generation layer adopts any one of monocrystalline silicon cells, polycrystalline silicon cells, and thin film cells, and uses waterproof materials to fully fill the gaps around the photovoltaic cells, and is connected to the electrical base layer via cables. At the same time, it should be tightly connected with the anti-slip and light-transmitting surface layer above it and the honeycomb friction nano-power generation layer below it using adhesive materials.

[0011] Optionally, the electrical base layer is made of a polymer plate, which is made of one or more of rubber, fiber or plastic. Slots are cut on it and corresponding cables are laid. The cables should have reserved interfaces on the outside of the plate to ensure electrical connection between multiple plate structures, and should be tightly bonded to the underlying traditional pavement structure surface or load-bearing base using adhesive materials, rivets or bolts.

[0012] Optionally, the honeycomb friction nano-power generation layer includes a friction electrode layer, a honeycomb structure layer and conductive elastic balls. The overall structure should be fully sealed and tightly connected to the photovoltaic power generation layer above it and the electrical base layer below it via adhesive materials.

[0013] Optionally, the friction electrode layer can be made of copper or aluminum sheets and connected to the electrical base layer through cables. The inner surface of the friction electrode layer should be polished with sandpaper or pasted with conductive tape or nylon material to give it sufficient roughness, and the two friction electrode layers are combined with the honeycomb structure layer to form a closed cavity.

[0014] Optionally, the honeycomb structure layer should be made of high-strength insulating material, and the surface should be covered with cylindrical or hexagonal holes with a hole diameter of 10 mm to 30 mm;

[0015] Optionally, the conductive elastic ball is made of any one of polytetrafluoroethylene, silicone, polypropylene, and rubber, with a diameter of 5mm to 20mm. Its surface must have sufficient roughness, and one ball must be placed in each honeycomb hole closed cavity.

[0016] Optionally, the bonding material may be epoxy resin or asphalt material.

[0017] Optionally, the waterproof material may be modified asphalt or polyurethane material.

[0018] Optionally, the plate structure can be assembled by combining multiple plates to form an integral large plate structure, which can be connected via cables to form an integral power generation structure, and connected with external batteries, inverters and other components to form a composite power generation system.

[0019] In practical applications, the pavement plate structure not only generates electricity by receiving solar radiation, but also, under driving conditions, the elastic balls bounce up and down within the prefabricated cavities due to the vibration energy of the wheels, generating electricity through a contact-separation process with the triboelectrode layer. These two energy collection methods complement each other, ensuring stable and efficient energy collection within the pavement structure.

[0020] The beneficial effects of the utility model are:

[0021] 1. This utility model introduces friction nano-power generation technology into the road surface structure, and uses the vibration energy generated by vehicle vibration to collect energy, which can power various road sensors and road-area power facilities, with significant economic benefits.

[0022] 2. This utility model addresses the situation where solar pavement has low power generation efficiency or even cannot generate power in rainy weather, heavy traffic flow and at night. It adopts a new pavement structure type that combines photovoltaic and friction nanocomposite power generation. At the same time, the honeycomb structure can provide a certain heat dissipation capacity for photovoltaic power generation, thereby improving the collection efficiency of road energy.

[0023] 3. The utility model has significant advantages in anti-skid performance, mechanical properties, durability and energy collection efficiency, can be applied to various road surface structure conditions, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 It is a side view of the pavement structure based on photovoltaic and friction nanocomposite power generation of the present invention.

[0026] Figure 2 This is the overall structural diagram of the pavement structure based on photovoltaic and friction nanocomposite power generation of the present invention.

[0027] Figure 3 This is a decomposition diagram of the pavement structure based on photovoltaic and friction nanocomposite power generation of the present invention.

[0028] The numbers in the figure represent:

[0029] 1. Anti-slip and light-transmitting surface layer; 2. Photovoltaic power generation unit layer; 3. Honeycomb friction nano-power generation layer; 31. Triboelectrode layer; 32. Honeycomb structure layer; 33. Conductive elastic balls; 4. Electrical base layer. DETAILED DESCRIPTION

[0030] The following describes in detail preferred embodiments of the present invention in conjunction with the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," and "horizontal," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] As used herein, the terms "comprises" and "include" merely indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the relevant listed items.

[0033] Figure 1 The utility model shows a pavement plate structure of photovoltaic and friction nano-composite power generation. The structural layers of this embodiment are composed of: anti-slip and translucent surface layer 1, photovoltaic power generation layer 2, honeycomb friction nano-power generation layer 3, and electrical base layer 4 from top to bottom. The structural layers are tightly bonded into a whole by bonding and are directly laid on the surface of a traditional pavement structure or a load-bearing base layer.

[0034] This embodiment is applicable to urban non-motorized vehicle lanes and sidewalks. The pavement plate structure based on photovoltaic and friction power generation is a regular rectangular structure with specific dimensions of 500 mm in length, 500 mm in width, and 55 mm in height. The thickness of the anti-slip and translucent surface layer 1 is 10 mm, the thickness of the photovoltaic power generation layer 2 is 5 mm, the thickness of the honeycomb friction nano-power generation layer 3 is 20 mm, and the thickness of the electrical base layer 4 is 20 mm. The thickness of each structural layer is not considered when calculating the thickness of the bonding material between the layers.

[0035] In this embodiment, the anti-slip and light-transmitting surface layer 1 is made of polymethyl methacrylate (PMMA), and its material properties are as follows: density is 1.18g / cm 3 , compressive strength is 90MPa, flexural strength is 110MPa, and light transmittance is 91%; and a micro-groove texture is formed on its upper surface by etching.

[0036] In this embodiment, the photovoltaic power generation layer 2 uses single-crystal silicon cells with a cell size of 200×200 mm. There are four cells arranged in a field shape. The cells are connected via copper wires and connected to the electrical base layer 4. The anti-slip and light-transmitting surface layer on it and the honeycomb friction nano-power generation layer 3 underneath it are tightly connected using adhesive materials, and the gaps around the photovoltaic cells are sealed using polyurethane.

[0037] In this embodiment, the honeycomb friction nano-power generation layer 3 should be composed of a friction electrode layer 31, a honeycomb structure layer 32 and conductive elastic balls 33, wherein the friction electrode layer 31 is 2.5 mm thick, the honeycomb structure layer 32 is 15 mm thick, and the conductive elastic balls 33 are 8 mm in diameter; the overall structure should be fully sealed and tightly connected to the photovoltaic power generation layer 2 above it and the electrical base layer 4 below it via adhesive materials.

[0038] In this embodiment, the friction electrode layer 31 is made of copper sheet, which is polished with sandpaper to have a sufficiently rough surface. It forms a closed cavity with the honeycomb structure layer 32 and is connected to the electrical base layer 4 through cables.

[0039] In this embodiment, the honeycomb structure layer 32 is made of glass fiber board, and its surface is covered with cylindrical holes with a diameter of 15 mm and a hole spacing of 10 mm. The conductive elastic balls 33 are made of polytetrafluoroethylene, and there is one in each honeycomb closed cavity.

[0040] In this embodiment, the electrical base layer is made of glass fiber board, and its material properties are as follows: density is 1.85g / cm 3 , elastic modulus is 12GPa, bending strength is 480MPa; and it is tightly connected to the honeycomb friction nano power generation layer 3 thereon via adhesive material.

[0041] In this embodiment, the conventional pavement structure layer below is ordinary cement concrete pavement, and the bonding material is epoxy resin material.

[0042] In this embodiment, a pavement plate structure based on photovoltaic and friction power generation can be assembled through multiple plates to form an integral large plate structure, and connected through cables of the electrical base layer to form an integral power generation structure, and connected with external batteries, inverters and other components to form a composite power generation system.

[0043] The examples described in the present invention are merely descriptions of the preferred implementation methods of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the scope of protection of the present invention.

Claims

1. A pavement plate structure for photovoltaic and tribo-nano composite power generation, characterized by: From top to bottom, it mainly includes an anti-skid and light-transmitting surface layer (1), a photovoltaic power generation layer (2), a honeycomb friction nano-power generation layer (3), and an electrical base layer (4). The various structural layers are tightly bonded into a whole by bonding, riveting or bolting, and are directly laid on the surface of a traditional pavement structure or a load-bearing base.

2. The pavement plate structure according to claim 1, characterized in that: The anti-slip and light-transmitting surface layer (1) is made of any one of transparent polymethyl methacrylate, polycarbonate, resin, and tempered glass, and has a thickness of 5 mm to 30 mm. A concave or convex dot-shaped or strip-shaped anti-slip texture is formed on its upper surface through an etching process. The photovoltaic power generation layer (2) is composed of a plurality of solar cells connected together, the gaps around the photovoltaic cells are filled with waterproof material with a thickness of 5 mm to 10 mm, and is connected to the electrical foundation layer (4) via cables; The electrical foundation layer (4) is made of a high molecular polymer plate, on which grooves are cut and corresponding cables are laid, and its thickness is controlled to be 10 mm to 30 mm. It is tightly bonded to the surface of the conventional pavement structure or the load-bearing base layer below it using adhesive materials, rivets or bolts.

3. The pavement plate structure according to claim 1, characterized in that: The honeycomb-shaped friction nanometer power generation layer (3) comprises a friction electrode layer (31), a honeycomb structure layer (32) and conductive elastic balls (33), and the layer thickness is 10 mm to 30 mm.

4. The pavement plate structure according to claim 3, characterized in that: The friction electrode layer (31) can be made of copper or aluminum sheets and connected to the electrical base layer (4) through cables. The inner surface of the friction electrode layer (31) should be polished with sandpaper or pasted with conductive tape or nylon material to have sufficient roughness.

5. The pavement plate structure according to claim 3, characterized in that: The honeycomb structure layer (32) should be made of high-strength insulating material, and the surface should be covered with cylindrical or hexagonal holes with a hole diameter of 10 mm to 30 mm; The conductive elastic ball (33) is made of any one of polytetrafluoroethylene, silica gel, polypropylene and rubber, has a diameter of 5mm to 20mm, and its surface needs to have sufficient roughness.

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