Distributed photovoltaic power station energy storage equipment for expressway

Abstract

The invention relates to the technical field of photovoltaic energy storage, in particular to expressway distributed photovoltaic power station energy storage equipment which comprises an energy storage chamber and a walking vehicle, a plurality of rows of photovoltaic panels are arranged at the top of the energy storage chamber, and the walking vehicle is provided with a conveying belt, an advancing unit and a first springback button; the length direction of the conveying belt is the same as the inclination direction of the photovoltaic panel, and a cleaning unit is arranged on a belt body of the conveying belt; the first springback button is coupled to the advancing unit, and the advancing unit drives the walking vehicle to move in the arrangement direction of the whole row of photovoltaic panels when the first springback button is pressed; the cleaning unit moves to abut against the surface of the photovoltaic panel when located below the conveying belt, and moves to press the first springback button when located above the conveying belt. The photovoltaic panel cleaning device can reduce the labor intensity of workers for cleaning the photovoltaic panel and improve the cleaning efficiency and the energy storage efficiency of the photovoltaic panel.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic energy storage, and particularly to energy storage devices for distributed photovoltaic power stations on highways. Background Art

[0002] In the area around highways, distributed photovoltaic power stations are characterized by flexible site deployment and low construction costs. When equipping a distributed photovoltaic power station with energy storage bins, according to the design and deployment of the distributed photovoltaic power station, some energy storage bins need to be pre-placed outdoors for power storage operations, and energy storage components constructed in a series-parallel manner are arranged inside. The energy storage bin is a device that receives solar light by arranging photovoltaic panels, converts solar energy into electrical energy, stores the electrical energy through a storage battery, and then supplies power to electrical equipment.

[0003] There is a large traffic flow and it is relatively open in the highway area, resulting in more dust. Coupled with the relatively high air humidity in some areas, the photovoltaic panels will be exposed to the air in the highway area for a long time during use, causing dust and other impurities in the air to fall onto the surface of the photovoltaic panels, thereby affecting the reception of solar light by the photovoltaic panels and further affecting the power conversion rate. Therefore, in some dusty and humid areas, the surface of the photovoltaic panels needs to be cleaned every 1 - 2 months.

[0004] However, the surface area of a single photovoltaic panel is usually between 1 - 2 square meters, and the number of photovoltaic panels in each energy storage bin is between 20 - 50. Therefore, the labor intensity of manual cleaning is too high, and the cleaning efficiency of the photovoltaic panels is low; if automated equipment is used for cleaning, due to the limited area at the top of the energy storage bin, in order to improve space utilization, the photovoltaic panels are usually installed closely side by side. Currently, the existing automated equipment cannot clean an entire row of photovoltaic panels at one time. If each photovoltaic panel is cleaned one by one, workers need to continuously move the automated equipment to the next photovoltaic panel to be cleaned, and workers need to constantly monitor the cleaning progress, resulting in a large labor intensity and low cleaning efficiency of the photovoltaic panels, delaying the normal use of the photovoltaic panels. Therefore, improvements are needed. Summary of the Invention

[0005] In order to reduce the labor intensity of workers cleaning photovoltaic panels and improve the cleaning efficiency and energy storage efficiency of photovoltaic panels, this application provides an energy storage device for a distributed photovoltaic power station on a highway.

[0006] The energy storage device for a distributed photovoltaic power station on a highway provided by this application adopts the following technical solutions: The energy storage device for a distributed photovoltaic power station on a highway includes an energy storage room, and multiple rows of photovoltaic panels are arranged on the top of the energy storage room. It also includes a walking vehicle, and a conveyor belt, a traveling unit, and a first rebound button are arranged on the walking vehicle;

[0007] The length direction of the conveyor belt is the same as the inclination direction of the photovoltaic panels, and a cleaning unit is arranged on the belt of the conveyor belt;

[0008] The first rebound button is coupled to the traveling unit. When the first rebound button is pressed, the traveling unit will drive the walking vehicle to move along the arrangement direction of the whole row of photovoltaic panels.

[0009] When the cleaning unit is below the conveyor belt, it will move and contact the surface of the photovoltaic panel. When the cleaning unit is above the conveyor belt, it will move and press the first rebound button.

[0010] Optionally, the whole row of the photovoltaic panels is installed on the energy storage chamber through a mounting frame. The mounting frame is provided with a slide rail groove, and the length direction of the slide rail groove is the same as the arrangement direction of the whole row of photovoltaic panels.

[0011] The traveling unit includes a reduction motor provided on the walking vehicle. The first rebound button is coupled to the reduction motor. A walking wheel is coaxially connected to the output shaft of the reduction motor. When the walking wheel is driven by the reduction motor to rotate, it will roll forward along the length direction of the slide rail groove in the slide rail groove.

[0012] Optionally, the cleaning unit includes a brush, a water spraying assembly, a water scraping plate and a cloth wiping plate which are sequentially arranged on the belt of the conveyor belt along the advancing direction of the cleaning unit on the photovoltaic panel. When the brush, the water scraping plate and the cloth wiping plate are below the conveyor belt, they will move and contact the surface of the photovoltaic panel.

[0013] Optionally, the water spraying assembly includes a cleaning box and a water storage tank provided on the walking vehicle. The cleaning box is filled with water mixed with a cleaning agent. The cleaning box is connected to a low-pressure spray pipe through a low-pressure water pump.

[0014] The water storage tank is filled with water. The water storage tank is connected to a high-pressure spray pipe through a high-pressure water pump.

[0015] Both the low-pressure spray pipe and the high-pressure spray pipe are arranged on the belt of the conveyor belt and are sequentially arranged along the advancing direction of the cleaning unit on the photovoltaic panel.

[0016] Optionally, the cleaning unit further includes two groups of soft plate assemblies arranged on the surface of the belt of the conveyor belt. When the soft plate assemblies are below the conveyor belt, they will move and contact the surface of the photovoltaic panel. The cleaning unit is located between the two groups of soft plate units.

[0017] Optionally, a power supply and a second rebound button are provided on the walking vehicle. The power supply is connected to the low-pressure water pump and the high-pressure water pump through wires. The second rebound button is coupled to the low-pressure water pump and the high-pressure water pump.

[0018] When the cleaning unit moves and contacts the surface of the photovoltaic panel, it will simultaneously press the second rebound button, and the second rebound button will control the low-pressure water pump and the high-pressure water pump to start.

[0019] Optionally, the soft plate assembly includes a corrugated soft plate arranged on the conveyor belt, and the corrugated soft plate is provided with a plurality of sealing plates arranged in sequence along the forward direction of the cleaning unit on the surface of the photovoltaic panel. When the sealing plate is below the conveyor belt, it will move against the surface of the photovoltaic panel and press the second rebound button; when the sealing plate is above the conveyor belt, it will move to press the first rebound button.

[0020] Optionally, a friction unit is also included, which includes a push rod slidably connected to the traveling vehicle in a horizontal direction, and the push rod is provided with a friction block for slidingly inserting into the slide rail groove.

[0021] Optionally, the friction unit further comprises a vertical rod slidably connected to the traveling vehicle in the vertical direction, a guide block is provided on the vertical rod and is connected to the same rotating rod for rotation with the push rod, and the vertical rod and the traveling vehicle are connected to the same vertical spring;

[0022] When the second rebound button is pressed, the sealing plate will press down the guide block, so that the vertical rod drives the friction block on the push rod to slide and insert into the slide rail groove through the rotating rod, and the spring will be deformed at this time.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] 1. After the cleaning unit has finished cleaning the photovoltaic panel, the sealing plate will move and press the first rebound button, and the first rebound button will start the reduction motor through the PLC control, and the reduction motor will drive the walking wheel to move in the slide rail groove, so that the walking vehicle moves to the next photovoltaic panel, so that the present application can continuously complete the cleaning of the entire row of photovoltaic panels, without the need for workers to manually push the walking vehicle many times, reducing the labor intensity of workers, and saving the time of workers walking back and forth and pushing the walking vehicle, thereby improving the cleaning efficiency and energy storage efficiency of the photovoltaic panels;

[0025] 2. During the cleaning process of the photovoltaic panel surface, the brush will remove the dust on the photovoltaic panel surface, the water mixed with detergent in the cleaning box will be sprayed to the photovoltaic panel surface through the low-pressure nozzle, so that the residual dust on the photovoltaic panel surface is washed away, and the detergent can soften the stubborn stains on the photovoltaic panel surface, the water in the water storage tank will be sprayed to the photovoltaic panel surface through the high-pressure nozzle, so that the stubborn stains on the photovoltaic panel surface are thoroughly cleaned, the water on the photovoltaic panel surface will slide down along the photovoltaic panel surface and be discharged into the collection box, the scraper will scrape off the residual water on the photovoltaic panel surface, and the cloth wiper will dry the residual water on the photovoltaic panel surface;

[0026] 3. During the cleaning process of the photovoltaic panels, the sealing plate will press down the inclined surface of the guide block when the second rebound button is pressed. The guide block will drive the friction block to slide into the slide rail groove through the vertical rod, rotating rod and push rod, so that the traveling vehicle remains stable to ensure the stability of the traveling vehicle during the cleaning process of the photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the structure of a photovoltaic panel and a mounting frame in an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the structure of a photovoltaic panel, a mounting frame, and a walking vehicle in an embodiment of the present application;

[0030] Figure 4 It is a schematic diagram of the structure of a conveyor belt and a traveling unit in an embodiment of the present application;

[0031] Figure 5 It is a schematic cross-sectional view of a walking vehicle, a conveyor belt, and a cleaning unit in an embodiment of the present application;

[0032] Figure 6 It is a schematic diagram of the conveyor belt after hiding the sealing plate in an embodiment of the present application;

[0033] Figure 7 It is a schematic diagram of the conveyor belt showing only one side of the sealing plate in an embodiment of the present application;

[0034] Figure 8 It is a schematic diagram of the structure of a conveyor belt, a flexible plate assembly, a first resilient button, and a second resilient button in an embodiment of the present application;

[0035] Figure 9 It is a schematic diagram of the structure of a conveyor belt, a first resilient button, and a second resilient button in an embodiment of the present application;

[0036] Figure 10 It is a schematic diagram of the structure of a friction unit, a first resilient button, and a second resilient button in an embodiment of the present application;

[0037] Figure 11 It is a schematic diagram of the structure of the friction unit in an embodiment of the present application.

[0038] Reference numerals: 1, energy storage chamber; 11, guardrail; 12, photovoltaic panel; 2, mounting frame; 21, I-shaped steel; 211, slide rail groove; 22, reinforcing rod; 23, foot; 24, support rod; 25, strut; 26, fixed column; 3, walking vehicle; 31, fixed housing; 32, extension plate; 33, mounting frame; 34, support foot; 35, roller; 36, triangular seat; 37, collection box; 38, support plate; 39, connecting frame; 391, first rebound button; 392, second rebound button; 4, traveling unit; 41, reduction motor; 42, walking wheel; 5, conveyor belt; 51, rotating roller; 52, belt; 53, drive motor; 6, cleaning unit; 61, brush; 62, water spraying assembly; 621, cleaning box; 622, power supply; 623, water storage tank; 624, low-pressure water pump; 625, first hose; 626, low-pressure spray pipe; 627, high-pressure water pump; 628, second hose; 629, high-pressure spray pipe; 63, wiper blade; 64, cloth wiping plate; 65, flexible plate assembly; 651, corrugated flexible plate; 652, sealing plate; 7, friction unit; 71, fixed frame; 72, vertical rod; 73, guide block; 74, spring; 75, rotating rod; 76, push rod; 77, friction block. Detailed implementation manners

[0039] The following further elaborates on this application Figures 1-11 in conjunction with the attached drawings.

[0040] The embodiment of this application discloses an energy storage device for a highway distributed photovoltaic power station. As Figure 1 shown, the energy storage device for a highway distributed photovoltaic power station includes an energy storage chamber 1. A guardrail 11 and multiple rows of photovoltaic panels 12 are provided on the top of the energy storage chamber 1. The photovoltaic panels 12 are located between the guardrails 11. The photovoltaic panels 12 are used to absorb solar energy and convert it into electrical energy. The converted electrical energy will be stored in the energy storage chamber 1 and can be used for the living electricity of highway service areas or the charging of new energy vehicles.

[0041] Embodiment 1

[0042] As Figure 2 shown, in this embodiment, each row of photovoltaic panels 12 is installed on the top of the energy storage chamber 1 through a mounting frame 2. The assembly method of the mounting frame 2 is as follows:

[0043] S1. First, place two long strip-shaped I-shaped steels 21 side by side, and weld multiple steel reinforcing rods 22 between the two I-shaped steels 21, so that the multiple reinforcing rods 22 are arranged in sequence along the length direction of the I-shaped steel 21. The distance between every two reinforcing plates is between 80 - 120 cm;

[0044] S2. Vertically weld a plurality of cylindrical feet 23 on the top of the I-beam 21, such that the plurality of feet 23 are arranged in sequence along the length direction of the I-beam 21, and the spacing between every two feet 23 is between 80 - 120 cm, forming a steel frame;

[0045] S3. Turn the steel frame upside down, and vertically weld a plurality of steel support rods 24 on the top of the I-beam 21, such that the plurality of support rods 24 are arranged in sequence along the length direction of the I-beam 21, and the spacing between every two support rods 24 is between 80 - 120 cm;

[0046] S4. Weld a steel brace 25 on the tops of two relatively left and right support rods 24, and the inclination angle of the brace 25 determines the inclination angle of the photovoltaic panel 12;

[0047] S5. Weld 2 - 3 fixing columns 26 on the top of the brace 25, and the photovoltaic panel 12 is installed on the fixing columns 26 of the brace 25 through bolts or connecting fasteners.

[0048] It should be noted that in this embodiment Figure 1 is only a schematic diagram, and the overall length of the entire row of photovoltaic panels 12 is generally Figure 1 2 - 3 times the length of the entire row of photovoltaic panels 12 in

[0049] Embodiment 2

[0050] As Figure 3 and Figure 4 shown, a walking vehicle 3 is placed on the top of the energy storage chamber 1. The walking vehicle 3 includes a fixed shell 31 arranged obliquely, and the inclination direction of the fixed shell 31 is the same as the inclination direction of the brace 25; extension plates 32 are welded at the four corners of the fixed shell 31, and mounting frames 33 are provided at the high - end and low - end of the fixed shell 31. The mounting frames 33 are arranged in a "U" shape and are installed on the two extension plates 32 through locking bolts, such that a cavity is formed between each mounting frame 33 and the fixed shell 31.

[0051] Two support feet 34 are welded at the bottom of the mounting frame 33, and rollers 35 are installed at the bottom of the support feet 34 through bolts, thereby realizing the walking of the walking vehicle 3 on the top of the energy storage chamber 1.

[0052] A triangular seat 36 is installed on one of the support feet 34 of the mounting frame 33, and a traveling unit 4 is provided on the triangular seat 36. The traveling unit 4 includes a reduction motor 41 installed at the bottom of the triangular seat 36, and a traveling wheel 42 is coaxially connected to the output shaft of the reduction motor 41; a slide rail groove 211 is formed on one side of the I-beam 21, and the traveling wheel 42 cooperates with the slide rail groove 211.

[0053] When it is necessary to clean the surface of the photovoltaic panel 12, the worker will push the walking vehicle 3 to the photovoltaic panel 12 and make the two walking wheels 42 respectively embed into the slide rail grooves 211 on both sides of the mounting frame 2. At this time, the walking vehicle 3 can only move along the length direction of the I-shaped steel 21, so that the walking vehicle 3 is not prone to shaking. When the reduction motor 41 drives the walking wheels 42 to rotate, the walking wheels 42 will roll in the slide rail grooves 211, so that the walking vehicle 3 advances along the length direction of the I-shaped steel 21 to any photovoltaic panel 12.

[0054] As Figure 4 and Figure 5 shown, a conveyor belt 5 is provided on the walking vehicle 3. The length direction of the conveyor belt 5 is the same as the inclination direction of the photovoltaic panel 12. The conveyor belt 5 includes two rotating rollers 51 respectively arranged in the corresponding cavities. The rotating rollers 51 are rotatably connected to two extension plates 32. A driving motor 53 is installed on one of the extension plates 32. The output shaft of the driving motor 53 is coaxially connected to one of the rotating rollers 51. The same belt 52 is sleeved on the two rotating rollers 51. The fixed shell 31 is located inside the belt 52. The driving motor 53 drives the rotating roller 51 to rotate, so that the belt 52 makes a circular motion.

[0055] It should be noted that the detachable connection between the mounting frame 33 and the fixed shell 31 facilitates the disassembly and assembly of the conveyor belt 5 on the fixed shell 31.

[0056] As Figure 5 and Figure 6 shown, a cleaning unit 6 is provided on the belt 52 of the conveyor belt 5. The cleaning unit 6 includes a brush 61, a water spraying assembly 62, a water scraping plate 63 and a cloth wiping plate 64 which are sequentially installed on the belt 52 of the conveyor belt 5 along the advancing direction of the cleaning unit 6 on the photovoltaic panel 12. The water spraying assembly 62 includes a cleaning box 621, a power supply 622 and a water storage tank 623 which are installed in the fixed shell 31 by screws. The cleaning box 621 is filled with water mixed with a cleaning agent. The cleaning box 621 is connected to a low-pressure spray pipe 626 through a low-pressure water pump 624. The water storage tank 623 is filled with water. The water storage tank 623 is connected to a high-pressure spray pipe 629 through a high-pressure water pump 627. The power supply 622 is connected to the low-pressure water pump 624 and the high-pressure water pump 627 through wires.

[0057] When the walking vehicle 3 moves to the photovoltaic panel 12, the conveyor belt 5 will drive the brush 61, the low-pressure nozzle 626, the high-pressure nozzle 629, the wiper 63 and the cloth wiping plate 64 to move. When the brush 61 is below the conveyor belt 5, it will move and contact the surface of the photovoltaic panel 12, so that the dust on the surface of the photovoltaic panel 12 is brushed off; the overall thickness of the brush 61 is between 2 - 4 cm to ensure the dust removal effect; the low-pressure water pump 624 will pump the water mixed with the cleaning agent in the cleaning tank 621, and the water mixed with the cleaning agent will be sprayed out onto the surface of the photovoltaic panel 12 through the low-pressure nozzle 626, so that the residual dust on the surface of the photovoltaic panel 12 is washed away, and the cleaning agent can soften the stubborn stains on the surface of the photovoltaic panel 12; the mixing ratio of the cleaning agent to water is 1 - 2:100 to ensure the cleaning effect on the stains; the high-pressure water pump 627 will pump the water in the water storage tank 623, and the water will be sprayed out onto the surface of the photovoltaic panel 12 through the high-pressure nozzle 629, so that the stubborn stains on the surface of the photovoltaic panel 12 are thoroughly cleaned; the distance between the high-pressure nozzle 629 and the surface of the photovoltaic panel 12 needs to be controlled between 5 - 10 cm; the water body on the surface of the photovoltaic panel 12 will slide down along the surface of the photovoltaic panel 12 and be discharged, and the wiper 63 will contact the surface of the photovoltaic panel 12 and scrape off the residual water body on the surface of the photovoltaic panel 12; the part of the wiper 63 used to contact the photovoltaic panel 12 needs to be made of soft rubber material to avoid scratching the surface of the photovoltaic panel 12; the cloth wiping plate 64 will contact the surface of the photovoltaic panel 12 and dry the residual water body on the surface of the photovoltaic panel 12; the contact part of the cloth wiping plate 64 with the photovoltaic panel 12 needs to be made of water-absorbing materials such as cotton cloth, cotton bags wrapped with water-absorbing particles, sponge, etc.

[0058] It should be noted that the water outlet pipe of the low-pressure water pump 624 is connected to the low-pressure nozzle 626 through the first hose 625. One end of the first hose 625 is rotationally connected to the water outlet pipe of the low-pressure water pump 624 through a sealed bearing, and the other end of the first hose 625 is rotationally connected to the low-pressure nozzle 626 through a sealed bearing. During the movement of the conveyor belt 5, the first hose 625 can rotate and deform to ensure the normal water supply of the low-pressure water pump 624 to the low-pressure nozzle 626.

[0059] The water outlet pipe of the high-pressure water pump 627 is connected to the high-pressure nozzle 629 through the second hose 628. One end of the second hose 628 is rotationally connected to the water outlet pipe of the high-pressure water pump 627 through a sealed bearing, and the other end of the second hose 628 is rotationally connected to the high-pressure nozzle 629 through a sealed bearing. During the movement of the conveyor belt 5, the second hose 628 can rotate and deform to ensure the normal water supply of the high-pressure water pump 627 to the high-pressure nozzle 629.

[0060] It should be noted that the first hose 625 and the second hose 628 in the attached drawings of the specification are only schematic diagrams, and their actual lengths are sufficient to ensure the normal water supply of the low-pressure nozzle 626 and the high-pressure nozzle 629.

[0061] The low-pressure water pump 624 and the high-pressure water pump 627 are respectively arranged at the front and rear ends of the fixed housing 31 to prevent the first hose 625 and the second hose 628 from being entangled.

[0062] As Figure 6 and Figure 7 shown, the cleaning unit 6 further includes two groups of flexible plate assemblies 65. The cleaning unit 6 is located between the two groups of flexible plate units. The flexible plate assembly 65 includes a corrugated flexible plate 651 mounted on the belt 52 of the conveyor belt 5. A number of sealing plates 652 arranged in sequence along the advancing direction of the cleaning unit 6 on the surface of the photovoltaic panel 12 are adhered or fixed to the corrugated flexible plate 651 by countersunk screws. There is a gap between every two adjacent sealing plates 652.

[0063] During the process of the cleaning unit 6 cleaning the surface of the photovoltaic panel 12, the sealing plate 652 will move and fit on the surface of the photovoltaic panel 12, and the flexible plate assembly 65 will seal the gap between the side of the belt 52 and the surface of the photovoltaic panel 12. In addition, the brush 61 has a certain thickness, so as to be able to block the water body sliding off the surface of the photovoltaic panel 12, making the water body on the surface of the photovoltaic panel 12 being cleaned not easily splash onto the other photovoltaic panels 12 and the top of the energy storage chamber 1.

[0064] As Figure 5 shown, the same collection box 37 is provided on the traveling vehicle 3, and the mouth of the collection box 37 faces upward. During the cleaning process of the photovoltaic panel 12, the mouth of the collection box 37 will be located directly below the lower end of the photovoltaic panel 12, so that the water body sliding off the surface of the photovoltaic panel 12 can fall into the collection box 37 for collection.

[0065] It should be noted that the side of the collection box 37 is welded to two support legs 34 on one side of the traveling vehicle 3, and the bottom of the collection box 37 is connected to the two support legs 34 through a support plate 38. The support plate 38 is of a triangular structure to ensure the stability of the collection box 37.

[0066] The volume inside the collection box 37 can be set according to the number of photovoltaic panels 12 in a whole row, and it is advisable to be able to collect the cleaning wastewater of the whole row of photovoltaic panels 12; a water outlet pipe can be arranged at the bottom or side of the collection box 37 for convenient drainage.

[0067] As Figure 8 and Figure 9 shown, a first rebound button 391 and a second rebound button 392 are connected to the fixed housing 31 through a connecting frame 39. The first rebound button 391 is coupled to the reduction motor 41, and the second rebound button 392 is coupled to the low-pressure water pump 624 and the high-pressure water pump 627. The first rebound button 391, the second rebound button 392, the reduction motor 41, the low-pressure water pump 624 and the high-pressure water pump 627 are all electrically controlled by a PLC.

[0068] When the brush 61 starts to clean the surface of the photovoltaic panel 12, the sealing plate 652 in the cleaning unit 6 will press the second spring-back button 392. The second spring-back button 392 will control the low-pressure water pump 624 and the high-pressure water pump 627 to start after 2 s through the PLC. Within 2 s, the low-pressure nozzle 626 and the high-pressure nozzle 629 can move to directly above the surface of the photovoltaic panel 12, and then the low-pressure nozzle 626 and the high-pressure nozzle 629 will automatically spray water to clean the surface of the photovoltaic panel 12, avoiding directly spraying water from the low-pressure nozzle 626 and the high-pressure nozzle 629 onto the mounting frame 2.

[0069] After the cloth wiping plate 64 moves and touches the surface of the photovoltaic panel 12, the sealing plate 652 in the cleaning unit 6 will gradually separate from the second spring-back button 392. The second spring-back button 392 will reset and control the low-pressure water pump 624 and the high-pressure water pump 627 to close after 5 s through the PLC. Within 5 s, the low-pressure nozzle 626 and the high-pressure nozzle 629 can conduct a full flushing of the surface of the photovoltaic panel 12; after the low-pressure nozzle 626 separates from directly above the photovoltaic panel 12, the low-pressure water pump 624 and the high-pressure water pump 627 will close, avoiding directly spraying water from the low-pressure nozzle 626 and the high-pressure nozzle 629 onto the top of the energy storage chamber 1.

[0070] After the cloth wiping plate 64 moves away from the surface of the photovoltaic panel 12, the sealing plate 652 will move to press the first spring-back button 391. The first spring-back button 391 will control the reduction motor 41 to start through the PLC. The reduction motor 41 will drive the walking wheels 42 to travel in the slide rail groove 211, so that the walking vehicle 3 travels to the next photovoltaic panel 12.

[0071] When the walking vehicle 3 travels to the next photovoltaic panel 12, the sealing plate 652 will separate from the second spring-back button 392. The second spring-back button 392 will control the reduction motor 41 to close through the PLC, so that the walking vehicle 3 just stops at the next photovoltaic panel 12 to be cleaned, without the need for workers to manually push the walking vehicle 3 to travel; that is, the present application can continuously complete the cleaning of the entire row of photovoltaic panels 12, reducing the labor intensity of workers and saving the time for workers to walk back and forth and push the walking vehicle 3, improving the cleaning efficiency and energy storage efficiency of the photovoltaic panels 12.

[0072] Such as Figure 10 And Figure 11As shown, fixing brackets 71 are welded on both sides of the walking vehicle 3. A friction unit 7 is provided on the fixing bracket 71. The friction unit 7 includes a push rod 76 slidably connected to the fixing bracket 71 in the horizontal direction and a vertical rod 72 slidably connected to the fixing bracket 71 in the vertical direction. A friction block 77 is welded on the push rod 76. A guiding block 73 is welded on the vertical rod 72 and the same rotating rod 75 is rotatably connected to both the push rod 76 and the guiding block 73. The guiding block 73 is wedge-shaped. The vertical rod 72 and the fixing bracket 71 are commonly connected to the same vertical spring 74. One end of the spring 74 is fixedly connected to the vertical rod 72, and the other end of the spring 74 is fixedly connected to the fixing bracket 71.

[0073] When pressing the second return button 392, the sealing plate 652 will press down the inclined surface of the guiding block 73. The guiding block 73 will drive the vertical rod 72 to descend. The vertical rod 72 will drive the rotating rod 75 to flip on the vertical plane. The rotating rod 75 will drive the push rod 76 to slide. The push rod 76 will drive the friction block 77 to slide and insert into the slide rail groove 211. At this time, the spring 74 will deform. The static friction between the friction block 77 and the I-beam 21, the sliding friction between the sealing plate 652 and the surface of the photovoltaic panel 12, and the insertion fit between the walking wheel 42 and the slide rail groove 211 will keep the walking vehicle 3 stable, so as to ensure the stability of the walking vehicle 3 during the cleaning process of the photovoltaic panel 12 and prevent the walking vehicle 3 from shaking back and forth due to the start of the low-pressure water pump 624, the high-pressure water pump 627, and the drive motor 53.

[0074] After the cloth wiping plate 64 moves and abuts against the surface of the photovoltaic panel 12, the sealing plate 652 will gradually disengage from the second return button 392 and the guiding block 73. The spring 74 will return to its natural state, causing the guiding block 73 and the vertical rod 72 to rise and reset. The vertical rod 72 will drive the push rod 76 to slide and reset through the rotating rod 75. The push rod 76 will drive the friction block 77 to slide out of the slide rail groove 211, so that the walking wheel 42 can travel in the slide rail groove 211.

[0075] The implementation principle of the energy storage device of the highway distributed photovoltaic power station in the embodiment of this application is as follows: During the cleaning process of the photovoltaic panel 12, the worker will push the walking vehicle 3 to the photovoltaic panel 12, and make the two walking wheels 42 respectively embed into the slide rail grooves 211 on both sides of the mounting frame 2; then the drive motor 53 will start, and the conveyor belt 5 will drive the cleaning unit 6 to make a circular motion; after the brush 61 touches the surface of the photovoltaic panel 12, the brush 61 will brush off the dust on the surface of the photovoltaic panel 12. The sealing plate 652 has pressed the second return button 392, and the second return button 392 will control the low-pressure water pump 624 and the high-pressure water pump 627 to start after 2 s through the PLC; after the low-pressure nozzle 626 and the high-pressure nozzle 629 move to directly above the surface of the photovoltaic panel 12, the low-pressure water pump 624 and the high-pressure water pump 627 will start, and the water mixed with the cleaning agent in the cleaning tank 621 will be sprayed out onto the surface of the photovoltaic panel 12 through the low-pressure nozzle 626, so that the residual dust on the surface of the photovoltaic panel 12 is washed away, and the cleaning agent can soften the stubborn stains on the surface of the photovoltaic panel 12. The water in the water storage tank 623 will be sprayed out onto the surface of the photovoltaic panel 12 through the high-pressure nozzle 629, so that the stubborn stains on the surface of the photovoltaic panel 12 are completely cleaned; the water on the surface of the photovoltaic panel 12 will slide down along the surface of the photovoltaic panel 12 and be discharged into the collection box 37, and the water scraping plate 63 will scrape off the residual water on the surface of the photovoltaic panel 12, and the cloth wiping plate 64 will dry the residual water on the surface of the photovoltaic panel 12.

[0076] When the sealing plate 652 presses the second return button 392, it will press the inclined surface of the guide block 73. The guide block 73 will drive the friction block 77 to slide and insert into the slide rail groove 211 through the vertical rod 72, the rotating rod 75 and the push rod 76, so that the walking vehicle 3 is kept stable to ensure the stability of the walking vehicle 3 during the cleaning process of the photovoltaic panel 12.

[0077] After the cloth wiping plate 64 moves and touches the surface of the photovoltaic panel 12, the sealing plate 652 will gradually disengage from the second return button 392 and the guide block 73. The second return button 392 will reset and control the low-pressure water pump 624 and the high-pressure water pump 627 to close after 5 s through the PLC. The spring 74 will return to its natural state, causing the guide block 73 and the vertical rod 72 to rise and reset. The vertical rod 72 will drive the push rod 76 to slide and reset through the rotating rod 75, and the push rod 76 will drive the friction block 77 to slide out of the slide rail groove 211; at this time, since the brush 61, the wiper, the cloth wiping plate 64 and the sealing plate 652 are all attached to the surface of the photovoltaic panel 12, the walking vehicle 3 will still be stable; after the low-pressure nozzle 626 disengages from directly above the photovoltaic panel 12, the low-pressure water pump 624 and the high-pressure water pump 627 will close.

[0078] After the cloth wiping board 64 moves away from the surface of the photovoltaic panel 12, the sealing plate 652 will move to press the first rebound button 391, and the first rebound button 391 will start the deceleration motor 41 through PLC control. The deceleration motor 41 will drive the walking wheels 42 to travel in the slide rail groove 211, so that the walking vehicle 3 travels to the next photovoltaic panel 12.

[0079] When the walking vehicle 3 travels to the next photovoltaic panel 12, the sealing plate 652 will disengage from the second rebound button 392, and the second rebound button 392 will turn off the deceleration motor 41 through PLC control, so that the walking vehicle 3 just stops at the next photovoltaic panel 12 to be cleaned.

[0080] In summary, the present application can continuously complete the cleaning of the entire row of photovoltaic panels 12, without the need for workers to manually push the walking vehicle 3 forward multiple times, reducing the labor intensity of the workers, saving the time for the workers to walk back and forth and push the walking vehicle 3, and improving the cleaning efficiency and energy storage efficiency of the photovoltaic panels 12.

[0081] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A distributed photovoltaic power station energy storage device for a highway, comprising an energy storage chamber (1), wherein a plurality of rows of photovoltaic panels (12) are arranged on the top of the energy storage chamber (1), and characterized in that: It also includes a traveling vehicle (3), on which a conveyor belt (5), a traveling unit (4) and a first rebound button (391) are provided; The length direction of the conveyor belt (5) is the same as the inclination direction of the photovoltaic panel (12), and a cleaning unit (6) is provided on the belt (52) of the conveyor belt (5); The first rebound button (391) is coupled to the traveling unit (4), and when the first rebound button (391) is pressed, the traveling unit (4) drives the traveling vehicle (3) to move along the arrangement direction of the entire row of photovoltaic panels (12); When the cleaning unit (6) is below the conveyor belt (5), it moves to contact the surface of the photovoltaic panel (12); when the cleaning unit (6) is above the conveyor belt (5), it moves to press the first rebound button (391).

2. The highway distributed photovoltaic power station energy storage device according to claim 1 is characterized by: The entire row of photovoltaic panels (12) is mounted on the energy storage chamber (1) via a mounting frame (2), the mounting frame (2) is provided with a slide rail groove (211), and the length direction of the slide rail groove (211) is the same as the arrangement direction of the entire row of photovoltaic panels (12); The traveling unit (4) comprises a reduction motor (41) arranged on the traveling vehicle (3); a first rebound button (391) is coupled to the reduction motor (41); a traveling wheel (42) is coaxially connected to the output shaft of the reduction motor (41); and when the traveling wheel (42) is driven to rotate by the reduction motor (41), it rolls forward in the slide rail groove (211) along the length direction of the slide rail groove (211).

3. The highway distributed photovoltaic power station energy storage device according to claim 2 is characterized by: The cleaning unit (6) comprises a brush (61), a water spray assembly (62), a wiper (63) and a cloth wiping plate (64) which are arranged on the belt (52) of the conveyor belt (5) in sequence along the advancing direction of the cleaning unit (6) on the photovoltaic panel (12); the brush (61), the wiper (63) and the cloth wiping plate (64) move against the surface of the photovoltaic panel (12) when they are below the conveyor belt (5).

4. The highway distributed photovoltaic power station energy storage device according to claim 3 is characterized by: The water spray assembly (62) comprises a cleaning box (621) and a water storage tank (623) arranged on the traveling vehicle (3); the cleaning box (621) contains water mixed with a cleaning agent; the cleaning box (621) is connected to a low-pressure spray pipe (626) via a low-pressure water pump (624); The water storage tank (623) is filled with water, and the water storage tank (623) is connected to a high-pressure nozzle (629) via a high-pressure water pump (627); The low-pressure nozzle (626) and the high-pressure nozzle (629) are both arranged on the belt (52) of the conveyor belt (5) and are arranged in sequence along the forward direction of the cleaning unit (6) on the photovoltaic panel (12).

5. The highway distributed photovoltaic power station energy storage device according to claim 4 is characterized by: The cleaning unit (6) further comprises two groups of soft board components (65) arranged on the surface of the belt (52) of the conveyor belt (5); when the soft board components (65) are below the conveyor belt (5), they move against the surface of the photovoltaic panel (12); and the cleaning unit (6) is located between the two groups of soft board units.

6. The highway distributed photovoltaic power station energy storage device according to claim 5 is characterized by: The traveling vehicle (3) is provided with a power source (622) and a second rebound button (392); the power source (622) is connected to a low-pressure water pump (624) and a high-pressure water pump (627) through a wire; and the second rebound button (392) is coupled to the low-pressure water pump (624) and the high-pressure water pump (627); When the cleaning unit (6) moves against the surface of the photovoltaic panel (12), the second rebound button (392) will be pressed simultaneously, and the second rebound button (392) will control the low-pressure water pump (624) and the high-pressure water pump (627) to start.

7. The highway distributed photovoltaic power station energy storage device according to claim 6 is characterized by: The soft plate assembly (65) comprises a corrugated soft plate (651) arranged on the belt (52) of the conveyor belt (5); the corrugated soft plate (651) is provided with a plurality of sealing plates (652) arranged in sequence along the forward direction of the cleaning unit (6) on the surface of the photovoltaic panel (12); when the sealing plate (652) is below the conveyor belt (5), it moves against the surface of the photovoltaic panel (12) and presses the second rebound button (392); when the sealing plate (652) is above the conveyor belt (5), it moves to press the first rebound button (391).

8. The highway distributed photovoltaic power station energy storage device according to claim 7 is characterized by: It also includes a friction unit (7), which includes a push rod (76) slidably connected to the traveling vehicle (3) in a horizontal direction, and a friction block (77) is provided on the push rod (76) for slidingly inserting into the slide rail groove (211).

9. The highway distributed photovoltaic power station energy storage device according to claim 8, characterized in that: The friction unit (7) further comprises a vertical rod (72) slidably connected to the traveling vehicle (3) in a vertical direction, a guide block (73) being provided on the vertical rod (72) and being rotatably connected to the same rotating rod (75) together with the push rod (76), and the vertical rod (72) and the traveling vehicle (3) being jointly connected to the same vertical spring (74); When the second rebound button (392) is pressed, the sealing plate (652) presses down the guide block (73), so that the vertical rod (72) drives the friction block (77) on the push rod (76) to slide into the slide rail groove (211) through the rotating rod (75), and the spring (74) will be deformed.

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