Photovoltaic power generation system for highway toll station
By installing photovoltaic modules on the roof of highway toll stations and combining them with temperature management devices and self-cleaning coatings, the problems of low conversion efficiency and short service life of photovoltaic panels have been solved, achieving efficient power supply and system stability.
Patent Information
- Application Number
- CN202520111371.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing photovoltaic panels suffer from a lack of temperature management, resulting in a significant decrease in conversion efficiency as temperature rises and a short lifespan.
Photovoltaic modules are installed on the roof of highway toll stations, and temperature management devices are installed inside the photovoltaic modules, including microencapsulated phase change material capsules and micro-cooling pipes, combined with self-cleaning coatings and transparent low-iron tempered glass covers, to achieve passive and active temperature regulation and self-cleaning functions.
It improves the conversion efficiency and lifespan of photovoltaic modules, ensures a stable power supply, reduces the need for regular cleaning, and enhances the reliability and stability of the system.
Smart Images
Figure CN223758208U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to photovoltaic power generation technical field, concretely relates to a photovoltaic power generation system for highway toll station. BACKGROUND
[0002] Highway toll station, as an important node on the highway, bears multiple responsibilities, is the key of road traffic, traffic control and traffic monitoring. They are like the regulating valve on the traffic artery, which always ensures the safety and smoothness of the highway. They play multiple roles in the modern transportation system and play a vital role. They are not only the collectors of road tolls, but also the important nodes of vehicle distribution, traffic monitoring and service provision. In the future development, with the continuous progress and application of science and technology, the function and role of toll station will be further expanded and improved to provide safer, more convenient and efficient services for people's travel.
[0003] In the prior art, in order to reduce the dependence on traditional power, thereby reducing energy pressure and reducing environmental pollution, photovoltaic panels are installed in highway toll stations to provide power for the power equipment required by the toll station.
[0004] The prior art has the following technical problems:
[0005] The existing photovoltaic panels do not have temperature management. Since the existing photovoltaic electricity basically uses silicon-based photovoltaic cells, the conversion efficiency will be significantly reduced as the temperature rises. Therefore, under the condition of lacking temperature management, the conversion efficiency of the photovoltaic panel is low, and the service life is short. UTILITY MODEL CONTENTS
[0006] In view of the above technical problems in the prior art that there is no temperature management, since the existing photovoltaic electricity basically uses silicon-based photovoltaic cells, the conversion efficiency will be significantly reduced as the temperature rises. Therefore, under the condition of lacking temperature management, the conversion efficiency of the photovoltaic panel is low, and the service life is short. The utility model provides a photovoltaic power generation system for highway toll station.
[0007] The technical scheme adopted by the utility model is as follows:
[0008] A photovoltaic power generation system for highway toll station, comprising a plurality of photovoltaic components arranged on the roof of the highway toll station, and a power distribution device arranged inside the highway toll station, the output end of the plurality of photovoltaic components is connected with one end of the inverter, the other end of the inverter is connected with the power distribution device; the photovoltaic component comprises a photovoltaic power generation device and a temperature management device.
[0009] The utility model discloses an advantageous effect that the utility model sets up photovoltaic module on the roof of the highway toll station, effectively utilizes the unused space, realizes the maximization utilization of land resources.
[0010] Further, the above also includes a plurality of electrical devices required by the highway toll station, a plurality of photovoltaic modules are set up according to the number of the electrical devices, each photovoltaic module is connected with an electrical device, and an inverter is set up between each photovoltaic module and the electrical device.
[0011] The above technical scheme has the beneficial effects that the utility model sets up a plurality of photovoltaic modules according to the requirements of different electrical devices inside the toll station, ensuring that each electrical device can obtain stable power supply. Each photovoltaic module is equipped with an independent inverter, so that even if a component or inverter fails, it will not affect the work of other parts, enhancing the reliability and stability of the system.
[0012] Further, the above photovoltaic power generation device includes a photovoltaic cell, a front surface cover plate and a rear surface cover plate.
[0013] The above technical scheme has the beneficial effects that the utility model specifies the basic composition of the photovoltaic power generation device, including a photovoltaic cell, a front surface cover plate and a rear surface cover plate, providing a clear standard for manufacturing and maintenance. Ensuring that the photovoltaic module has the core ability to receive sunlight and convert it into electrical energy is the basis for efficient power generation.
[0014] Further, the above photovoltaic power generation device is a double-sided design, and the front surface cover plate and the rear surface cover plate are both transparent materials.
[0015] The above technical scheme has the beneficial effects that the double-sided photovoltaic module of the utility model can receive direct sunlight on the front side while absorbing light reflected from the ground or other objects from the back side, significantly improving the overall power generation efficiency. The use of transparent materials makes the double-sided design particularly suitable for application in places with high reflectivity, further optimizing energy collection.
[0016] Further, the above front surface cover plate and rear surface cover plate are low-iron tempered glass.
[0017] The above technical scheme has the beneficial effects that the low-iron tempered glass of the utility model not only has high strength, can protect the photovoltaic cell from physical damage from the outside world, but also has high light transmittance, ensuring efficient light energy conversion.
[0018] Further, the above also includes a self-cleaning coating coated on the surface of the front surface cover plate and the surface of the rear surface cover plate.
[0019] With the above technical scheme, the self-cleaning coating of the utility model reduces the adhesion of dust, bird droppings and other pollutants, reduces the need for regular cleaning, saves labor and water resources, especially in areas where frequent cleaning is difficult. It can maintain the cleanliness of the photovoltaic module surface for a long time, ensure efficient energy collection, and improve power generation efficiency.
[0020] Further, the self-cleaning coating is a super-hydrophobic material.
[0021] With the above technical scheme, the self-cleaning coating made of super-hydrophobic material of the utility model can make water droplets roll quickly to take away dust without leaving water stains, further improving the self-cleaning effect.
[0022] Further, the material of the self-cleaning coating is fluorocarbon resin.
[0023] With the above technical scheme, the fluorocarbon resin of the utility model has excellent weather resistance, ultraviolet resistance and chemical corrosion resistance, ensuring the long-term stability and reliability of the self-cleaning coating. And the fluorocarbon resin can be conveniently applied to the surface of the photovoltaic module by spraying, dipping and other methods, simplifying the production process and reducing the manufacturing difficulty.
[0024] Further, the temperature management device is a microencapsulated phase change material capsule embedded in the front surface cover plate.
[0025] With the above technical scheme, the microencapsulated phase change material of the utility model can absorb or release a large amount of latent heat in a specific temperature range, providing passive temperature regulation function, and the phase change material capsule embedded in the front surface cover plate avoids direct contact with the photovoltaic cell, reducing the risk of physical damage to the cell, while not affecting light transmission.
[0026] Further, the temperature management device is a micro-cooling pipeline located between the photovoltaic cell and the rear surface cover plate.
[0027] With the above technical scheme, the micro-cooling pipeline of the utility model is located between the photovoltaic cell and the rear surface cover plate, which can effectively conduct heat away from the photovoltaic cell, providing active cooling function to prevent overheating and efficiency decline or damage. And it can make the heat distribution more uniform, avoid local overheating points, and improve the heat dissipation efficiency and working stability of the entire photovoltaic module.
[0028] Therefore, the utility model has the advantages that:
[0029] 1. The utility model discloses a photovoltaic module is arranged on the roof of the highway toll station, effectively utilizes the unused space, realizes the maximum utilization of land resources.
[0030] 2. The utility model discloses a plurality of photovoltaic modules are arranged according to the demand of different electric devices inside the toll station, ensure that every electric device can obtain stable power supply.
[0031] 3. The utility model discloses a double-sided photovoltaic module can receive direct sunlight on the front side and absorb light reflected by the ground or other objects from the back side, significantly improve the overall power generation efficiency.
[0032] 4. The self-cleaning coating of the utility model reduces the adhesion of dust, bird droppings and other pollutants, reduces the need for regular cleaning, saves labor and water resources, especially in areas where frequent cleaning is difficult.
[0033] 5. The microencapsulated phase change material can absorb or release a large amount of latent heat in a specific temperature range, providing passive temperature regulation function, and the phase change material capsule embedded in the front surface cover avoids direct contact with the photovoltaic cell, reducing the risk of physical damage to the cell, while not affecting light transmission.
[0034] 6. The micro-cooling pipeline is located between the photovoltaic cell and the rear surface cover, which can effectively conduct heat away from the photovoltaic cell, providing active cooling function to prevent overheating and efficiency decline or damage. BRIEF DESCRIPTION OF DRAWINGS
[0035] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings, wherein:
[0036] Figure 1 is a structural schematic view of a photovoltaic power generation system for a highway toll station according to the embodiment of the present application. DETAILED DESCRIPTION
[0037] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application, that is, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0038] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0039] The features and performances of the present application will be further described in detail below in combination with the embodiments.
[0040] Embodiment 1
[0041] As shown in the drawings, Figure 1 The photovoltaic power generation system for a highway toll station provided in the embodiment 1 of the present application comprises a plurality of photovoltaic modules arranged on the roof of the highway toll station and a power distribution device arranged inside the highway toll station, the output ends of the plurality of photovoltaic modules are connected with one end of an inverter, the other end of the inverter is connected with the power distribution device, and the photovoltaic module comprises a photovoltaic power generation device and a temperature management device.
[0042] In the embodiment, the photovoltaic module is installed on the roof of the toll station, can generate direct current (DC) by using solar energy, then convert the direct current into alternating current (AC) through the inverter, so as to be connected with the power distribution device inside the toll station for use of the toll station or integration into the power grid.
[0043] Among them, the photovoltaic module is arranged on the roof of the highway toll station, effectively utilizes the unused space, and realizes the maximum utilization of land resources. And by arranging the temperature management device in the photovoltaic module, the conversion efficiency and service life of the photovoltaic module are increased.
[0044] Optionally, the photovoltaic power generation device comprises a photovoltaic cell, a front surface cover plate and a rear surface cover plate.
[0045] The utility model in detail stipulates the basic constitution of photovoltaic power generation device, including photovoltaic cell, front surface cover plate and back surface cover plate, provides clear standard for manufacture and maintenance. Ensure that photovoltaic module has the core ability of receiving sunlight and converting it into electric energy, is the basis of realizing efficient power generation.
[0046] Optionally, the photovoltaic power generation device is double-sided design, the front surface cover plate and the back surface cover plate are transparent materials.
[0047] The utility model discloses a double-sided design photovoltaic module can receive direct sunlight from the front side and absorb light reflected from the ground or other objects from the back side, significantly improving the overall power generation efficiency. The use of transparent materials makes the double-sided design particularly suitable for use in high-reflectivity environments, further optimizing energy collection.
[0048] Optionally, the front surface cover plate and the back surface cover plate are low-iron tempered glass.
[0049] The low-iron tempered glass of the utility model not only has high strength, can protect the photovoltaic cell from physical damage from the outside world, but also has high light transmittance, ensuring efficient light energy conversion.
[0050] Optionally, it also includes a self-cleaning coating, which is coated on the surface of the front surface cover plate and the surface of the back surface cover plate.
[0051] The self-cleaning coating of the utility model reduces the adhesion of dust, bird droppings and other pollutants, reduces the need for regular cleaning, saves labor and water resources, especially in areas where frequent cleaning is difficult. It can maintain the cleanliness of the surface of the photovoltaic module for a long time, ensuring efficient energy collection and improving power generation efficiency.
[0052] Optionally, the self-cleaning coating is a super-hydrophobic material.
[0053] The self-cleaning coating made of super-hydrophobic material of the utility model can make water droplets roll quickly to remove dust without leaving water stains, further improving the self-cleaning effect.
[0054] Optionally, the material of the self-cleaning coating is fluorocarbon resin.
[0055] The fluorocarbon resin of the utility model has excellent weather resistance, ultraviolet resistance and chemical corrosion resistance, ensuring the long-term stability and reliability of the self-cleaning coating. And fluorocarbon resin can be conveniently applied to the surface of photovoltaic module by spraying, dipping and other methods, simplifying the production process and reducing the manufacturing difficulty.
[0056] Optionally, the temperature management device is microencapsulated phase change material capsules embedded in the front surface cover plate.
[0057] In this way, the microencapsulated phase change material can absorb or release a large amount of latent heat within a specific temperature range, providing passive temperature regulation. The phase change material capsules embedded in the front surface cover plate avoid direct contact with the photovoltaic cells, reducing the risk of physical damage to the cells, while not affecting light transmission.
[0058] Optionally, the temperature management device is micro-cooling channels located between the photovoltaic cells and the back surface cover plate.
[0059] In this way, the micro-cooling channels located between the photovoltaic cells and the back surface cover plate can effectively conduct heat away from the photovoltaic cells, providing active cooling to prevent overheating and efficiency loss or damage. This also ensures more uniform heat distribution and improves the overall photovoltaic module's cooling efficiency and stability.
[0060] Workflow
[0061] Light reception:
[0062] Multiple photovoltaic modules installed on the roof of a highway toll station begin to receive sunlight. Due to the double-sided design, these photovoltaic modules not only receive direct sunlight through the front surface cover plate, but also absorb reflected light from the ground or other objects through the back surface cover plate.
[0063] Photoelectric conversion:
[0064] The photovoltaic cells inside the photovoltaic modules convert the received light energy into direct current (DC). The photovoltaic cells are made of high-efficiency semiconductor materials, ensuring high photoelectric conversion efficiency.
[0065] Temperature management:
[0066] Inside the photovoltaic module, the microencapsulated phase change material capsules embedded in the front surface cover plate absorb or release heat according to environmental temperature changes, providing passive temperature regulation.
[0067] For cases requiring more efficient active cooling, the micro-cooling channels located between the photovoltaic cells and the back surface cover plate effectively conduct heat away from the photovoltaic cells, preventing overheating and efficiency loss or damage, and ensuring more uniform heat distribution.
[0068] DC to AC conversion:
[0069] The generated direct current is transmitted to the inverter. The inverter is responsible for converting the direct current into alternating current (AC) suitable for use by the internal power distribution devices of the toll station.
[0070] Power distribution:
[0071] The AC power converted by the inverter is distributed to various electrical equipment within the toll station, such as lighting, monitoring systems, toll systems, etc., and can also be connected to the power grid to realize surplus power grid connection.
[0072] Self-cleaning maintenance:
[0073] The front and rear surface cover plates are coated with a self-cleaning coating with super-hydrophobic properties (fluorocarbon resin), reducing the adhesion of dust, bird droppings and other pollutants. When rain falls, it will quickly roll away the dust, keeping the surface clean and ensuring efficient energy collection.
[0074] Working principle
[0075] Photoelectric effect: The core of the photovoltaic module is the photovoltaic cell, which works based on the photoelectric effect. When sunlight shines on the photovoltaic cell, the energy of photons excites electron transition, generating electric current, thereby converting light energy into electrical energy.
[0076] Double-sided design optimization: The double-sided design of the photovoltaic module can receive direct sunlight on the front side and absorb reflected light from the back side, significantly improving the overall power generation efficiency. This design is particularly suitable for places with high reflectivity, further optimizing energy collection.
[0077] Temperature management mechanism:
[0078] Phase change material: The microencapsulated phase change material capsules embedded in the front surface cover plate undergo solid-to-liquid or reverse changes within a specific temperature range, absorbing or releasing a large amount of latent heat, thereby stabilizing the working temperature of the photovoltaic module.
[0079] Micro-cooling pipe: For higher active cooling needs, micro-cooling pipes are located between the photovoltaic cells and the rear surface cover plate, which circulate cooling liquid to remove heat, ensuring that the photovoltaic cells operate within an appropriate temperature range. Common cooling media include water, ethylene glycol solution or other proprietary cooling liquids, which have high heat capacity and low viscosity, and can provide efficient heat transfer at low pressure. The micro-cooling pipe is connected to a small pump to drive the circulation of the cooling liquid in the micro-cooling pipe, and the flow rate is adjusted according to actual needs to maintain optimal cooling effect. When the photovoltaic cells generate heat, the cooling liquid absorbs the heat and carries it away. The micro-cooling pipe is also connected to a heat dissipation device, where the heated cooling liquid is cooled and returned to continue circulation. The heat dissipation device can be a heat sink, fan or condenser.
[0080] Inverter technology: Inverters convert the direct current generated by photovoltaic modules into alternating current, allowing the electrical energy to be used by electrical equipment within the toll station or integrated into the public grid. Advanced inverters also have the function of maximum power point tracking (MPPT) to optimize the output power of photovoltaic modules.
[0081] Self-cleaning function: The application of self-cleaning coating reduces the need for regular cleaning, reduces maintenance costs, and keeps the surface of photovoltaic modules clean and tidy in the long term, ensuring efficient energy collection. The fluorocarbon resin coating with super-hydrophobic properties allows water droplets to quickly roll away dust without leaving water stains, further improving the self-cleaning effect.
[0082] Embodiment 2
[0083] The photovoltaic power generation system for the highway toll station provided by the embodiment 2 of the utility model, including multiple electrical devices required by the highway toll station, multiple photovoltaic modules are set up according to the number of the electrical devices, each photovoltaic module is connected with an electrical device, and an inverter is arranged between each photovoltaic module and the electrical device.
[0084] Among them, the utility model sets up multiple photovoltaic modules according to the needs of different electrical devices inside the toll station, ensuring that each electrical device can obtain stable power supply. Each photovoltaic module is equipped with an independent inverter, so that even if a component or inverter fails, it will not affect the work of other parts, enhancing the reliability and stability of the system.
[0085] Optionally, the photovoltaic power generation device comprises a photovoltaic cell, a front surface cover plate and a rear surface cover plate.
[0086] Among them, the utility model specifies the basic composition of the photovoltaic power generation device in detail, including the photovoltaic cell, the front surface cover plate and the rear surface cover plate, which provides clear standards for manufacturing and maintenance. Ensuring that the photovoltaic module has the core ability to receive sunlight and convert it into electrical energy is the basis for achieving efficient power generation.
[0087] Optionally, the photovoltaic power generation device is double-sided design, and the front surface cover plate and the rear surface cover plate are both transparent materials.
[0088] Among them, the double-sided photovoltaic module of the utility model can receive direct sunlight on the front side while absorbing light reflected from the ground or other objects from the back side, significantly improving the overall power generation efficiency. The use of transparent materials makes the double-sided design particularly suitable for places with high reflectivity, further optimizing energy collection.
[0089] Optionally, the front surface cover plate and the rear surface cover plate are low-iron tempered glass.
[0090] The low-iron tempered glass has high strength, can protect photovoltaic cells from physical damage from the outside world, has high light transmittance, and ensures efficient light energy conversion.
[0091] Optionally, it also comprises a self-cleaning coating coated on the surface of the front surface cover plate and the surface of the rear surface cover plate.
[0092] The self-cleaning coating of the utility model reduces the adhesion of dust, bird droppings and other pollutants, reduces the need for regular cleaning, saves labor and water resources, especially in areas where frequent cleaning is difficult. It can maintain the cleanliness of the photovoltaic module surface for a long time, ensure efficient energy collection, and improve power generation efficiency.
[0093] Optionally, the self-cleaning coating is a super-hydrophobic material.
[0094] The self-cleaning coating made of super-hydrophobic material can make water droplets quickly roll away dust without leaving water stains, further improving the self-cleaning effect.
[0095] Optionally, the material of the self-cleaning coating is fluorocarbon resin.
[0096] The fluorocarbon resin of the utility model has excellent weather resistance, ultraviolet resistance and chemical corrosion resistance, ensuring the long-term stability and reliability of the self-cleaning coating. And fluorocarbon resin can be conveniently applied to the surface of photovoltaic module by spraying, dipping and other methods, simplifying the production process and reducing the manufacturing difficulty.
[0097] Optionally, the temperature management device is a microencapsulated phase change material capsule, and the phase change material capsule is embedded in the front surface cover plate.
[0098] The microencapsulated phase change material can absorb or release a large amount of latent heat in a specific temperature range, providing passive temperature regulation function, and the phase change material capsule embedded in the front surface cover plate avoids direct contact with the photovoltaic cell, reducing the risk of physical damage to the cell, while not affecting light transmission.
[0099] Optionally, the temperature management device is a micro-cooling pipeline, and the micro-cooling pipeline is located between the photovoltaic cell and the rear surface cover plate.
[0100] The micro-cooling pipeline is located between the photovoltaic cell and the rear surface cover plate, which can effectively conduct heat away from the photovoltaic cell, provide active cooling function, prevent overheating from causing efficiency drop or damage. And it can make the heat distribution more uniform, avoid local overheating spots, and improve the heat dissipation efficiency and working stability of the whole photovoltaic module.
[0101] The above merely describes preferred embodiments of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement and improvement made by any person skilled in the art within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A photovoltaic power system for a highway toll booth, characterized by, The application relates to a photovoltaic power generation device for highway toll station, which comprises a plurality of photovoltaic components arranged on the roof of the highway toll station and a power distribution device arranged in the interior of the highway toll station, the output ends of the photovoltaic components are connected with one end of an inverter, and the other end of the inverter is connected with the power distribution device; the photovoltaic component comprises a photovoltaic power generation device and a temperature management device.
2. A photovoltaic power system for use in a highway toll booth according to claim 1, characterized in that, The application further comprises a plurality of electric devices required by the highway toll station, a plurality of photovoltaic components are arranged according to the number of the electric devices, each photovoltaic component is connected with one electric device, and an inverter is arranged between each photovoltaic component and the electric device.
3. A photovoltaic power system for use in a highway toll booth according to claim 2, characterized in that, The photovoltaic power generation device comprises a photovoltaic cell, a front surface cover plate and a rear surface cover plate.
4. A photovoltaic power system for use in a highway toll booth according to claim 3, characterized in that, The photovoltaic power generation device is of a double-sided design, and the front surface cover plate and the rear surface cover plate are both made of transparent material.
5. A photovoltaic power system for use in a highway toll booth according to claim 4, characterized in that, The front surface cover plate and the rear surface cover plate are made of low-iron tempered glass.
6. A photovoltaic power system for use in a highway toll booth according to claim 3, wherein The application further comprises a self-cleaning coating coated on the surface of the front surface cover plate and the surface of the rear surface cover plate.
7. A photovoltaic power system for use in a highway toll booth according to claim 6, characterized in that, The self-cleaning coating is made of super-hydrophobic material.
8. A photovoltaic power system for use in a highway toll booth according to claim 7, characterized in that, The self-cleaning coating is made of fluorocarbon resin.
9. A photovoltaic power system for use in a highway toll booth according to claim 3, characterized in that, The temperature management device is a micro-capsulated phase change material capsule, and the phase change material capsule is embedded in the front surface cover plate.
10. A photovoltaic power system for use in a highway toll booth according to claim 3, characterized in that, The temperature management device is a micro-cooling pipeline, and the micro-cooling pipeline is located between the photovoltaic cell and the rear surface cover plate.