Solar photovoltaic device suitable for roads and railways

Abstract

The utility model relates to a solar photovoltaic device suitable for highways and railways, which comprises a photovoltaic panel arranged in a space above a highway pavement or a railway track and used for collecting solar energy, a functional truss used for fixing the photovoltaic panel, and an electricity storage mechanism used for storing energy, the photovoltaic panel is connected with the electricity storage mechanism through a power transmission cable, the functional truss comprises side stand columns used for being erected on the two sides of a highway or a railway and a top frame installed above the side stand columns. The photovoltaic panel is laid on the top frame, the electricity storage mechanism is installed on the lower portions of the side stand columns, and the photovoltaic panel conducts power transmission cable routing and bundling through hollow column cavities of the side stand columns and is finally connected into the electricity storage mechanism. The device makes full use of the space above the road surface, has the physical functions of shielding rain, snow and hail under rainfall weather conditions, blocking high temperature and direct sunlight in summer and the like besides large-scale efficient collection, conversion and storage of clean energy, and has positive effects on road surface protection and traffic safety.

Description

Technical Field

[0001] The utility model relates to the fields of new energy related technologies, devices, systems, etc., and specifically to a solar photovoltaic device suitable for roads and railways. Background Art

[0002] At present, solar power generation is in a stage of rapid development and has become an important part of the global energy sector. The installed capacity of global solar power generation continues to grow. According to the International Energy Agency (IEA), the total installed capacity of global solar power generation in 2021 is about 1,080GW, which has increased by about 12 times compared with 2010. Solar power generation has become one of the power technologies with the largest new installed capacity in the world. At the same time, solar power generation technology continues to innovate and improve, the efficiency of photovoltaic cells continues to increase, and the cost continues to decline. In particular, the research and application of new photovoltaic technologies such as crystalline silicon solar cells, thin-film solar cells, organic solar cells and perovskite solar cells have made major breakthroughs. Under this situation, governments of various countries have actively promoted the development of solar power generation. Some countries have also established fixed purchase prices or auction markets for solar power generation to ensure the sustainable development of solar power generation.

[0003] my country has the world's largest highway and railway network. In terms of highway transportation, the total mileage of various types of highways, including expressways, national roads, provincial roads, county roads, and rural roads, has reached 4,897,600 kilometers. By the end of 2022, the total mileage of China's expressways has reached about 160,000 kilometers. Minus the total mileage of expressway network tunnels announced by the official and in 2019, which is about 6,924 kilometers, the remaining available mileage is about 153,076 kilometers. The average road width of my country's expressways is usually between about 30 meters and 45 meters. The road width in this range is usually a standard expressway with six or eight lanes in both directions. The road width of some high-capacity traffic arteries may be wider, reaching more than 60 meters. In order to support social development and growing economic needs, the total mileage of highways and railways continues to grow. Only for the land occupied by the road surface itself, excluding the land occupied by other facilities and auxiliary equipment, the total road surface area is estimated to be between 13.8 and 20.7 billion square meters. Calculated based on the current commercial solar power generation efficiency, assuming that the conversion efficiency of a typical solar panel is 15%, the solar paving area is 20.7 billion square meters. Multiply the total area by the effective conversion efficiency of the solar panel: 20.7 billion square meters × 0.15 = 3.105 billion square meters. The average annual solar radiation in my country is 1000-2000kWh / m. Taking into account the regional differences in my country, the annual solar radiation is less than 900, and the average daily solar radiation is about 2.47kWh / m; considering that the solar energy system may not be able to generate full power around the clock, the average daily sunshine time is 6 hours; considering other loss factors such as system efficiency and temperature, the overall system efficiency is 80%, and the result is multiplied by 365 days in a year and 6 hours a day: 3.105 billion square meters × 2.47 × 0.8 × 365 days × 6 hours = 134,367 billion kilowatt-hours (kWh), that is, 21.6 billion square meters of solar paving area may generate approximately 134,367kWh of electricity. The total annual solar power generation generated by the highway network is conservatively estimated to be equivalent to the annual power generation of 115 Three Gorges reservoirs (according to statistics, as of the end of 2022, the annual power generation of the Three Gorges Reservoir is about 1,170kWh). At the same time, my country's new energy vehicles and rail transit vehicles are developing and expanding rapidly. Therefore, it is extremely valuable both in terms of economic benefits and comprehensive benefits to maximize the use of the space occupied by roads and railways in a scientific and effective manner. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a solar photovoltaic device suitable for roads and railways. The device is suitable for layout along various existing and newly built roads and railways. On the theoretical basis of minimizing the occupation of land plane expansion, it makes full use of the space above the road surface. In addition to having large-scale and efficient collection, conversion and storage of clean energy, the device also has physical functions such as shielding rain, snow and hail under precipitation weather conditions and blocking high temperature and direct sunlight in summer, which has a positive effect on road protection and traffic safety.

[0005] The solar photovoltaic device suitable for roads and railways includes a photovoltaic panel arranged in the space above the road surface or railway track for collecting solar energy, a functional truss for fixing the photovoltaic panel, and a power storage mechanism for storing energy. The photovoltaic panel is connected to the power storage mechanism via a power transmission cable, wherein the functional truss includes side columns for erection on both sides of the road or railway and a top frame installed above the side columns; the photovoltaic panel is laid on the top frame, the power storage mechanism is installed at the bottom of the side column, and the photovoltaic panel is bundled with power transmission cables through the hollow column cavity of the side column and finally connected to the power storage mechanism.

[0006] As an application expansion and implementation optimization of the structure, the functional truss also includes a support column arranged in the center of the top frame.

[0007] As a truss structure of the bearing mechanism, the top frame includes a basic frame for fixed connection with the side columns and the support columns and a connecting frame fixed on the back side of the photovoltaic panel, and the connecting frame can be supported and installed on the basic frame.

[0008] Specifically, the basic frame is a concave profile welded or integrated structure, a structural groove is formed on the top of the basic frame, and assembly holes are opened on the side walls of the structural groove; the connecting frame is a two-section structure, including a fixed arm with hinged ends and an electric-driven telescopic rod; wherein, the fixed arm is fixed on the back side of the photovoltaic panel, and the free ends of the fixed arm and the electric-driven telescopic rod are both hinged on the assembly holes of the basic frame.

[0009] As a specific type of photovoltaic panel, the photovoltaic panel can be a polycrystalline silicon panel, a monocrystalline silicon panel or a hybrid of the two; the photovoltaic panel can also be a high-efficiency solar cell including a single / multi-junction heterojunction solar cell, an organic solar cell or a crystalline silicon, perovskite component laminated battery panel.

[0010] Specifically with respect to the storage terminal and application direction of the electric energy collected and converted by photovoltaic panels, the power storage mechanism includes the national grid, an independent / matching power storage station or an integrated power storage box, or a combination of two or three of the above.

[0011] The utility model discloses a solar photovoltaic device suitable for roads and railways, which is suitable for layout along various existing and newly built roads and railways. On the theoretical basis of minimizing the occupation of land plane expansion, the space above the road surface is fully utilized. In addition to having large-scale and efficient collection, conversion and storage of clean energy, the device also has the physical functions of shielding rain, snow and hail under precipitation weather conditions and blocking high temperature and direct sunlight in summer, which has a positive effect on road protection and traffic safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following is a further description of a solar photovoltaic device suitable for roads and railways of the utility model in conjunction with the accompanying drawings:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of implementation mode 1 of the solar photovoltaic device applicable to roads and railways (applied to railways);

[0014] Figure 2 yes Figure 1 Exploded view of the structure from top view;

[0015] Figure 3 yes Figure 1 Exploded diagram of the structure viewed from above;

[0016] Figure 4 This is a schematic diagram of the plan structure of the second embodiment of the solar photovoltaic device applicable to roads and railways (applied to roads);

[0017] Figure 5 yes Figure 4 A top-down perspective diagram;

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the top frame of the solar photovoltaic device applicable to roads and railways;

[0019] Figure 7 yes Figure 6 Exploded view of the structure from top view.

[0020] In the picture:

[0021] 1- Photovoltaic panels;

[0022] 2-functional truss; 21-side column, 22-top frame, 23-support column;

[0023] 3-Electricity storage mechanism;

[0024] 4-basic frame; 41-structural slot, 42-assembly hole;

[0025] 5-connecting frame; 51-fixed arm, 52-electrically driven telescopic rod. DETAILED DESCRIPTION

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] The technical solution of the utility model is further described below with specific embodiments, but the protection scope of the utility model is not limited to the following embodiments.

[0029] Implementation method 1: Figures 1 to 3 As shown, the solar photovoltaic device suitable for roads and railways includes a photovoltaic panel 1 arranged in the space above the road surface or railway track for collecting solar energy, a functional truss 2 for fixing the photovoltaic panel 1, and a power storage mechanism 3 for storing energy. The photovoltaic panel 1 is connected to the power storage mechanism 3 through a transmission cable, wherein the functional truss 2 includes a side column 21 for erecting on both sides of the road or railway and a top frame 22 installed above the side column 21; the photovoltaic panel 1 is laid on the top frame 22, and the power storage mechanism 3 is installed at the bottom of the side column 21. The photovoltaic panel is bundled with the transmission cable through the hollow column cavity of the side column 21 and finally connected to the power storage mechanism 3. The photovoltaic panel 1 can be a polycrystalline silicon panel, a monocrystalline silicon panel, or a hybrid of the two; the photovoltaic panel 1 can also be a high-efficiency solar cell including a single / multi-junction heterojunction solar cell, an organic solar cell, or a crystalline silicon, perovskite component laminated battery panel.

[0030] Implementation method 2: Figure 4 , 5As shown, the functional truss 2 of the solar photovoltaic device suitable for roads and railways also includes a support column 23 arranged in the center of the top frame 22. In the matching of expressways, due to the increase in the number of newly built and renovated road lanes, in order to solve the load-bearing pressure problem caused by the increase in the width span of the road surface, the green belt in the middle of the original lane in the highway structure is used as the spatial position layout basis for the support transition support. Specifically, with regard to the storage terminal and application trend of the electric energy collected and converted by the photovoltaic panels, the power storage mechanism 3 includes the national grid, an independent / matching power storage station or an integrated power storage box, or a combination of two or three of the above. After the photovoltaic panels collect solar energy and complete the photoelectric conversion, a part of it is input into the national grid; the other part is input into the power storage station or the power storage box, wherein the power storage station can be independently set up at intervals of 40 to 100 km along the area where the equipment system is laid, or it can be matched in the service area along the line, and the power storage box is placed on the side column or the lower part of the support column. The remaining structures and components are as described in Implementation 1 and will not be repeated.

[0031] Implementation method 3: Figure 6 , 7 As shown, the top frame 22 of the solar photovoltaic device suitable for roads and railways includes a basic frame 4 for fixed connection with the side columns 21 and the support columns 23 and a connecting frame 5 fixed on the back of the photovoltaic panel 1, and the connecting frame 5 can be supported and installed on the basic frame 4. It is used to control the state of each photovoltaic panel so that it can be laid flat (for covering), lifted at an angle (for efficient lighting) to vertically erected on the top frame (for light transmission). The basic frame 4 is a concave profile welding or integrated structure, a structural groove 41 is formed above the basic frame 4, and an assembly hole 42 is opened on the side wall of the structural groove 41; the connecting frame 5 is a two-section structure, including a fixed arm 51 and an electric drive telescopic rod 52 with hinged ends; wherein, the fixed arm 51 is fixed on the back of the photovoltaic panel 1, and the free ends of the fixed arm 51 and the electric drive telescopic rod 52 are both hinged on the assembly hole 42 of the basic frame 4. The specific structure of the so-called top frame, the connection with the photovoltaic panel and the drive control method, this structural design can be adjusted by fixing the connecting frame on the photovoltaic panel (each photovoltaic panel is generally equipped with a pair of connecting frames) to adapt to the splicing of photovoltaic panels of different sizes in the basic frame. The basic frame structure groove plays the role of supporting the photovoltaic panel and guiding the connecting frame. At the same time, it can also completely store the connecting frame in the groove in the flat state, and in the lifted state, it buckles the fixed arm and the root of the electric drive telescopic rod to maintain a stable diagonal bracing state. The remaining structures and components are as described in Implementation 1 and will not be repeated.

[0032] This solar photovoltaic device suitable for roads and railways is suitable for layout along existing and newly built roads and railways. On the theoretical basis of minimizing the expansion of the land plane, it makes full use of the space above the road surface. In addition to the large-scale and efficient collection, conversion and storage of clean energy, this device also has physical functions such as shielding rain, snow and hail under precipitation weather conditions and blocking high temperatures and direct sunlight in summer, which has a positive effect on road protection and traffic safety.

[0033] The above description shows the main features, basic principles, and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments or embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, the above embodiments or embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A solar photovoltaic device suitable for roads and railways, characterized by: The invention comprises a photovoltaic panel (1) arranged in the space above a road surface or a railway track and used for collecting solar energy, a functional truss (2) used for fixing the photovoltaic panel (1), and an electricity storage mechanism (3) used for storing energy, wherein the photovoltaic panel (1) is connected to the electricity storage mechanism (3) via a transmission cable, wherein: The functional truss (2) comprises side columns (21) for erecting on both sides of a road or railway and a top frame (22) installed above the side columns (21); the photovoltaic panels (1) are laid on the top frame (22), and the power storage mechanism (3) is installed at the bottom of the side columns (21); the photovoltaic panels are bundled with power transmission cables through the hollow column cavities of the side columns (21) and are finally connected to the power storage mechanism (3).

2. The solar photovoltaic device suitable for roads and railways according to claim 1 is characterized in that: The functional truss (2) also includes a support column (23) arranged in the center of the top frame (22).

3. The solar photovoltaic device suitable for roads and railways according to claim 2 is characterized in that: The top frame (22) comprises a base frame (4) for fixedly connecting to the side columns (21) and the support columns (23) and a connecting frame (5) fixed to the back side of the photovoltaic panel (1); the connecting frame (5) can be supported and installed on the base frame (4).

4. The solar photovoltaic device suitable for roads and railways according to claim 3 is characterized in that: The basic frame (4) is a concave profile welded or integrated structure, a structural groove (41) is formed on the top of the basic frame (4), and an assembly hole (42) is opened on the side wall of the structural groove (41); the connecting frame (5) is a two-section structure, including a fixed arm (51) and an electric drive telescopic rod (52) with hinged ends; wherein the fixed arm (51) is fixed to the back side of the photovoltaic panel (1), and the free ends of the fixed arm (51) and the electric drive telescopic rod (52) are both hinged to the assembly hole (42) of the basic frame (4).

5. The solar photovoltaic device suitable for roads and railways according to claim 4 is characterized in that: The photovoltaic panel (1) may be a polycrystalline silicon panel, a monocrystalline silicon panel or a combination of the two; the photovoltaic panel (1) may also be a high-efficiency solar cell including a single / multi-junction heterojunction solar cell, an organic solar cell or a crystalline silicon or perovskite component laminated solar cell panel.

6. The solar photovoltaic device suitable for roads and railways according to claim 5 is characterized in that: The power storage mechanism (3) comprises a national power grid (31), an independent / matching power storage station (32) or an integrated power storage box (33), or a combination of two or three of the above.

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