Distributed photovoltaic power generation energy storage device

Abstract

The utility model discloses a distributed photovoltaic power generation energy storage device, which relates to the technical field of photovoltaic power generation, and comprises a plurality of support columns, a plurality of main beams, a ceiling frame and a plurality of photovoltaic panels, a cleaning system is further mounted on the ceiling frame, a diversion trench is further arranged at one end of the ceiling frame, a hydraulic cylinder is arranged between each support column and each main beam, and the hydraulic cylinders are connected with the photovoltaic panels. The two ends of the hydraulic cylinder are rotationally connected with second fixed hinged supports, and the two second fixed hinged supports at the two ends of the hydraulic cylinder are fixed to the bottom face of the main beam and the side face of the supporting column correspondingly, light energy conversion and electric energy storage are integrally designed, photovoltaic conversion energy storage is achieved, and power supply of a load is facilitated; the cleaning system is additionally arranged on the photovoltaic panel, accumulated dust or sundries on the surface of the photovoltaic panel can be cleaned in the long-term use process of the photovoltaic panel, the long-term light receiving effect of the photovoltaic panel is ensured, inclination angle adjustment can be conducted on the photovoltaic panel in a specific time period, the light receiving performance of the photovoltaic panel is ensured, and therefore the photovoltaic power generation energy storage efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation, and in particular to a distributed photovoltaic power generation energy storage device. Background Technology

[0002] Photovoltaic power generation (also known as solar power generation) is a technology that uses solar energy to produce electricity. It converts the light energy from solar radiation into electrical energy through solar cells (photovoltaic modules), thereby generating electricity.

[0003] In the process of photovoltaic power generation, in order to better utilize and collect the electrical energy converted from light energy, photovoltaic energy storage devices are needed. Currently, conventional energy storage uses lithium batteries, while distributed photovoltaic power generation energy storage devices are key equipment that combine photovoltaic power generation systems with energy storage technology. They are mainly used to store excess electrical energy generated by photovoltaic power generation and release electrical energy when needed (such as at night, on cloudy days, or when the power grid is shut down) to improve energy utilization efficiency.

[0004] Existing photovoltaic power generation equipment is mostly installed in a fixed manner. This method requires frequent maintenance, such as cleaning the surface of the photovoltaic panels. The accumulated dust or impurities on the surface need to be cleaned manually and regularly to ensure its light absorption. Manual cleaning is time-consuming and labor-intensive. Secondly, since photovoltaic panels are mostly fixed, their light absorption is not perfect, and the utilization of solar energy needs to be improved. Therefore, this utility model provides a distributed photovoltaic power generation energy storage device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a distributed photovoltaic power generation and energy storage device, which solves the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a distributed photovoltaic power generation and energy storage device, comprising multiple support columns installed at equal intervals in a parking space, each support column having a main beam hinged to its top via a fixed hinge seat, a roof frame connected to the multiple main beams, and multiple photovoltaic panels being arrayed on the top of the roof frame;

[0007] The canopy frame is also equipped with a cleaning system for cleaning the surface of the photovoltaic panels, and a guide channel is provided at one end of the canopy frame.

[0008] Each of the support columns is equipped with a hydraulic cylinder between itself and the main beam. Both ends of the hydraulic cylinder are rotatably connected to a fixed hinge seat two, and the two fixed hinge seats two at both ends of the hydraulic cylinder are respectively fixed to the bottom surface of the main beam and the side surface of the support column.

[0009] As a further technical solution of this utility model, the cleaning system includes fixed plates symmetrically installed on both sides of the ceiling frame and a positioning plate set in the middle of the ceiling frame. Each fixed plate has a groove on its upper surface, and a drive screw is rotatably connected inside the groove. A movable seat is threadedly connected to the drive screw, and the movable seat slides in the groove.

[0010] A motor is mounted on one side wall of the fixed plate at one end of the drive screw via a bracket. One end of the drive screw passes through the fixed plate and is fixed to the output end of the motor.

[0011] As a further technical solution of this utility model, the cleaning system also includes two sliding grooves opened on the upper surface of the positioning plate, each of the sliding grooves is slidably connected to a sliding seat, and a cleaning plate is connected between each adjacent sliding seat and the moving seat. Spray plates are also installed on both sides of the top of the sliding seat and the moving seat at the cleaning plate. A cleaning sponge plate for wiping the photovoltaic panel is installed on the lower surface of the cleaning plate by bolts.

[0012] As a further technical solution of this utility model, multiple spray heads are evenly distributed on the lower surface of the spray plate. The spray plate is a hollow structure, and one end of the spray plate is also provided with an extendable and retractable hose. The multiple spray heads are connected to the hose through the spray plate. The other end of the hose is connected to a water supply pipe with a valve.

[0013] As a further technical solution of this utility model, a rinsing plate is also installed on the inner wall of the guide channel near the cleaning plate. Multiple rinsing nozzles for rinsing the cleaning sponge plate are evenly distributed on the rinsing plate. The rinsing plate has a hollow structure inside, and one end of the rinsing plate is also connected to a hose, and the other end of the hose is also connected to a water supply pipe. There is a valve on the water supply pipe, and the multiple rinsing nozzles are all connected to the rinsing plate.

[0014] As a further technical solution of this utility model, the inner bottom of the guide channel is inclined, and a drain pipe is connected to the lower surface of one end of the guide channel. The top end of the drain pipe extends into the inside of the guide channel and corresponds to its inclined end, for discharging water inside the guide channel.

[0015] The drain pipe is fixed to the main beam and the support column by a bracket, and the section of the drain pipe between the main beam and the support column is a flexible hose.

[0016] As a further technical solution of this utility model, a control box and an inverter are respectively installed on the two outermost support columns, and the control box and the inverter are connected to the energy storage cabinet through wires. The energy storage cabinet stores a battery. The control box is equipped with a solar controller, a timer and a PLC control switch. Lighting lights are evenly distributed at the lower end of the canopy frame.

[0017] This utility model provides a distributed photovoltaic power generation energy storage device, which has the following advantages compared with the prior art:

[0018] 1. This design is a distributed photovoltaic power generation and energy storage device. Distributed matrix photovoltaic panels are applied to the roof of a carport, and the design integrates the conversion of light energy and the storage of electrical energy to realize photovoltaic energy conversion and storage for power supply to the load. This method can reduce electricity costs and realize the utilization of green energy.

[0019] 2. The distributed photovoltaic power generation and energy storage device designed in this paper adds a cleaning system to the distributed photovoltaic panel. This system can clean the dust or debris on the surface of the photovoltaic panel during long-term use, ensuring its long-term light reception effect. In addition, the cleaning system is also equipped with a rinsing nozzle to ensure the cleanliness of the photovoltaic panel itself during long-term cleaning and improve its cleaning effect.

[0020] 3. The distributed photovoltaic power generation and energy storage device designed in this paper is equipped with a hydraulic cylinder and a timer for adjusting the tilt angle of the photovoltaic panel. The tilt angle of the photovoltaic panel can be adjusted within a specific time period to ensure its light reception, thereby improving the photovoltaic power generation and energy storage efficiency. Attached Figure Description

[0021] Figure 1 This is a first structural view of a distributed photovoltaic power generation and energy storage device.

[0022] Figure 2 This is a second structural view of a distributed photovoltaic power generation and energy storage device.

[0023] Figure 3 This is a schematic diagram of the hydraulic cylinder and main beam in a distributed photovoltaic power generation and energy storage device.

[0024] Figure 4 This is a top view of a distributed photovoltaic power generation and energy storage device;

[0025] Figure 5 This is a schematic diagram of a cleaning system in a distributed photovoltaic power generation and energy storage device.

[0026] Figure 6 This is a schematic diagram showing the connection between the top plate, the movable base, and the sliding base in a distributed photovoltaic power generation and energy storage device.

[0027] Figure 7 This is a schematic diagram of the installation of a cleaning sponge plate and a spray head in a distributed photovoltaic power generation and energy storage device.

[0028] Figure 8 A schematic diagram of a photovoltaic power generation and energy storage system.

[0029] In the diagram: 1. Support column; 2. Fixed hinge seat one; 3. Main beam; 4. Canopy frame; 41. Photovoltaic panel; 42. Control box; 43. Energy storage cabinet; 5. Guide channel; 51. Drain pipe; 52. Washing plate; 53. Washing nozzle; 6. Fixed plate; 61. Positioning plate; 62. Drive screw; 63. Motor; 64. Moving seat; 65. Slide; 66. Slide seat; 7. Cleaning plate; 71. Spray plate; 72. Spray head; 73. Cleaning sponge plate; 8. Inverter; 9. Hydraulic cylinder; 91. Fixed hinge seat two. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-4 This utility model provides a technical solution for a distributed photovoltaic power generation and energy storage device: A distributed photovoltaic power generation and energy storage device includes multiple support columns 1 installed at equal intervals in a parking space. The top of each support column 1 is hinged to a main beam 3 via a fixed hinge seat 2. The fixed hinge seat 2 is fixed to the top of the support column 1 and is hinged to the main beam 3. A hydraulic cylinder 9 is provided between each support column 1 and the main beam 3. Both ends of the hydraulic cylinder 9 are rotatably connected to a fixed hinge seat 91. The two fixed hinge seats 91 at both ends of the hydraulic cylinder 9 are respectively fixed to the bottom surface of the main beam 3 and the side surface of the support column 1. By controlling the extension and retraction of the hydraulic cylinder 9, one side of the main beam 3 can be pushed up or down, thereby changing the angle between the main beam 3 and the support column 1 (i.e., the inclination of the main beam 3). In this way, the tilt of the photovoltaic panel 41 can be changed to ensure its light reception. It should be noted that the multiple hydraulic cylinders 9 are all connected to a PLC control switch through a channel guide, and the PLC control switch can synchronously control the multiple hydraulic cylinders 9 to extend and retract synchronously, thereby adjusting the tilt angle of the photovoltaic panel 41.

[0032] For example, in the morning and afternoon, when the sun is at a low angle (close to the horizon), the photovoltaic panel 41 should be tilted as much as possible to obtain more sunlight, especially in the morning or evening, when the tilt angle of the photovoltaic panel 41 should be slightly larger to receive as much oblique sunlight as possible; while at noon, when the sun is close to due south (Northern Hemisphere) or due north (Southern Hemisphere), the sunlight is most vertical, and at this time the photovoltaic panel can be placed almost horizontally or tilted slightly (such as 15°) to optimize the reception of sunlight.

[0033] Multiple main beams 3 are connected to a roof frame 4. Multiple photovoltaic panels 41 are arrayed on the top of the roof frame 4. A control box 42 and an inverter 8 are respectively installed on the two outermost support columns 1. Both the control box 42 and the inverter 8 are connected to an energy storage cabinet 43 via wires. The energy storage cabinet 43 stores batteries. The control box 42 contains a solar controller, a timer, and a PLC control switch. The timer can set the extension and retraction time of the hydraulic cylinder 9, thereby controlling the hydraulic cylinder 9 to adjust the angle of the main beam 3 according to the angle of sunlight throughout the day, and thus adjusting the tilt angle of the photovoltaic panels 41 to increase their light absorption. Lighting lights are evenly distributed at the lower end of the roof frame 4. The multiple photovoltaic panels 41 can convert light energy into electrical energy and store it in the batteries inside the energy storage cabinet 43. The solar controller can also prevent overcharging / over-discharging of the batteries. Furthermore, the electrical energy stored in the batteries can be used in the carport, and with the use of the inverter, the current can be converted to supply the load (see details). Figure 8 For example, the power supply for lighting, hydraulic cylinder 9, and motor 63;

[0034] A cleaning system for cleaning the surface of photovoltaic panels 41 is also installed on the roof frame 4. The cleaning system includes fixed plates 6 symmetrically installed on both sides of the roof frame 4 and a positioning plate 61 set in the middle of the roof frame 4. Each fixed plate 6 has a groove on its upper surface, and a drive screw 62 is rotatably connected inside the groove. A movable seat 64 is threadedly connected to the drive screw 62. The movable seat 64 slides in the groove. A motor 63 is mounted on one side wall of the fixed plate 6 corresponding to one end of the drive screw 62 via a bracket. One end of the drive screw 62 passes through the fixed plate 6 and is fixed to the output end of the motor 63. It should be noted that a threaded hole is opened through the movable seat 64 corresponding to the drive screw 62. The movable seat 64 is threadedly connected to the drive screw 62 through the threaded hole. When the motor 63 drives the drive screw 62 to rotate, the movable seat 64 moves linearly on the drive screw 62 due to the threaded connection between the movable seat 64 and the drive screw 62. During the linear movement, the movable seat 64 slides within the groove for a limited position. Figure 6 As shown, each adjacent movable seat 64 and slide 66 jointly support a cleaning plate 7. The multiple cleaning plates 7 on the canopy frame 4 are all on the same horizontal line, and the multiple motors 63 are electrically connected to the PLC control switch. The multiple motors 63 are synchronously controlled, and the motors 63 adopt conventional linear module drive motors.

[0035] The cleaning system also includes two grooves 65 on the upper surface of the positioning plate 61. Each groove 65 has a sliding seat 66 slidably connected to it. A cleaning plate 7 is connected between each adjacent sliding seat 66 and the movable seat 64. When the movable seat 64 moves linearly on the drive screw 62, its top end moves the cleaning plate 7 to wipe and clean the surface of the photovoltaic panel 41. The other end of the cleaning plate 7 slides within the grooves 65 via the sliding seat 66, improving the stability of the cleaning plate 7 during movement. Spray plates 71 are also installed on both sides of the top of the sliding seat 66 and the movable seat 64, located on either side of the cleaning plate 7. A cleaning sponge plate 73 for wiping the photovoltaic panel 41 is bolted to the lower surface of the cleaning plate 7. The cleaning sponge plate 73 is detachable for easy positioning. Periodic replacement or maintenance improves cleaning effectiveness. In addition, the lower surface of the cleaning sponge board 73 is in contact with the surface of the photovoltaic panel 4, facilitating wiping and cleaning. Multiple spray heads 72 are evenly distributed on the lower surface of the spray plate 71. The spray plate 71 has a hollow structure, and one end of the spray plate 71 is also equipped with an extendable and retractable hose. Multiple spray heads 72 are connected to the hose through the spray plate 71. The other end of the hose is connected to a water supply pipe with a valve. Spray plates 71 are set at both the front and rear of the cleaning sponge board 73. The purpose is to rinse the photovoltaic panel 41 with water by spraying water from the front spray head 72 before wiping it, then wipe it with the cleaning sponge board 73, and then rinse it again with the rear spray head 72, thereby achieving efficient cleaning of the photovoltaic panel 41.

[0036] One end of the canopy frame 4 is also equipped with a guide channel 5. A rinsing plate 52 is installed on the inner wall of the guide channel 5 near the cleaning plate 7. Multiple rinsing nozzles 53, which rinse the cleaning sponge plate 73, are evenly distributed on the rinsing plate 52. The rinsing plate 52 has a hollow internal structure, and one end of the rinsing plate 52 is connected to a flexible hose. The other end of the flexible hose is also connected to a water supply pipe. The water supply pipe has a valve, which is a solenoid valve. The valve's opening and closing can be controlled by a PLC control switch, thereby controlling the opening and closing of the spray nozzles 72 or rinsing nozzles 53. Multiple rinsing nozzles 53 are all connected to the rinsing plate 52. The inner bottom of the guide channel 5 is inclined. One end of the guide channel 5 is connected to a drain pipe 51. The top of the drain pipe 51 extends into the guide channel 5 and corresponds to its inclined end, which is used to discharge the water inside the guide channel 5. It should be added that when the cleaning plate 7 is not in use or after being reset, the cleaning sponge plate 73 at its bottom is located directly above the guide channel 5. The cleaning sponge plate 73 can be rinsed and cleaned by the rinsing nozzle 53 to ensure the cleanliness of the cleaning sponge plate 73, which is conducive to cleaning the photovoltaic panel 41 again. The wastewater from the rinsing nozzle 53 can flow directly from the bottom of the guide channel 5 to the drain pipe 51 and be discharged into the sewer.

[0037] The drain pipe 51 is fixed to the main beam 3 and the support column 1 by a bracket, and the section of the drain pipe 51 between the main beam 3 and the support column 1 is a flexible hose. The purpose of using a flexible hose here is to ensure that when the main beam 3 is tilted by the hydraulic cylinder 9, the drain pipe 51 will not affect its tilt adjustment, nor will it affect the drainage of the drain pipe 51.

[0038] The working principle of this utility model is as follows: This invention is mainly used in parking lots. It converts light energy into electrical energy through the matrix photovoltaic panel 41 and stores it in the energy storage cabinet 43 to realize energy storage and reduce electricity costs. Moreover, during use, the hydraulic cylinder 9 can be extended or retracted in a timely manner by using a timer and the hydraulic cylinder 9 and the PLC control switch to adjust the tilt angle of the photovoltaic panel 41 so that it receives more sunlight when facing the sun.

[0039] Secondly, during long-term use of photovoltaic panels 41, the accumulation of dust on the surface of photovoltaic panels 41 due to the large amount of outdoor dust will affect their light-receiving effect. Therefore, a cleaning system can be adopted to clean the surface of photovoltaic panels 41 regularly. During cleaning, multiple motors 63 are controlled to rotate forward synchronously by a PLC control switch, which drives the moving seat 64 to move linearly along the surface of the photovoltaic panel 41 by the drive screw 62. With the sliding of the slide 66, multiple cleaning plates 7 can be driven to wipe the surface of photovoltaic panels 41 simultaneously. Before wiping, the valve on the water supply pipe is opened to deliver water to the spray plate 71, and then sprayed out by the spray head 72 to realize the process of "preliminary rinsing - wiping - secondary rinsing" of photovoltaic panels 41.

[0040] Then, the motor 63 is synchronously controlled to rotate in the opposite direction, so that the spray plate 71 is reset and the spray plate 71 is located directly above the guide channel 5. Then, the rinsing nozzle 53 is used to rinse and clean the cleaning sponge plate 73 to ensure the cleanliness of the cleaning sponge plate 73, which is conducive to cleaning the photovoltaic panel 41 again. The wastewater from the rinsing nozzle 53 can be directly collected at the bottom of the guide channel 5 to the drain pipe 51 and discharged into the sewer.

[0041] In addition, during long-term use, in order to ensure the smooth flow of water and to prevent debris such as fallen leaves from falling into the channel, manual cleaning can be performed during later maintenance.

[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A distributed photovoltaic power generation and energy storage device comprising a plurality of support columns (1) installed at equal intervals at a parking space, characterized in that, The top end of each support column (1) is hinged with a main beam (3) through a fixed hinge seat I (2), a plurality of the main beams (3) are commonly connected with a roof frame (4), and the top of the roof frame (4) is arrayed with a plurality of photovoltaic panels (41); The roof frame (4) is also provided with a cleaning system for cleaning the surface of the photovoltaic panel (41), and one end of the roof frame (4) is provided with a flow guide groove (5); Each of the support columns (1) and the main beam (3) is provided with a hydraulic cylinder (9), both ends of the hydraulic cylinder (9) are rotatably connected with a fixed hinge seat II (91), and the two fixed hinge seat II (91) at both ends of the hydraulic cylinder (9) are fixed at the bottom surface of the main beam (3) and the side surface of the support column (1) respectively.

2. The distributed photovoltaic power generation and energy storage device according to claim 1, characterized in that, The cleaning system comprises fixed plates (6) symmetrically installed on both side surfaces of the roof frame (4) and a positioning plate (61) arranged in the middle of the roof frame (4), the upper surface of each fixed plate (6) is provided with a groove, and the inside of the groove is rotatably connected with a drive screw (62), the drive screw (62) is threadedly connected with a moving seat (64), and the moving seat (64) slides in the groove; One side wall of the fixed plate (6) is provided with a motor (63) through a support at the position corresponding to one end of the drive screw (62), and one end of the drive screw (62) penetrates through the fixed plate (6) and is fixed with the output end of the motor (63).

3. The distributed photovoltaic power generation and energy storage device according to claim 1, characterized in that, The cleaning system further comprises two slide grooves (65) formed in the upper surface of the positioning plate (61), each slide groove (65) is slidably connected with a sliding seat (66), each adjacent sliding seat (66) and moving seat (64) are commonly connected with a cleaning plate (7), and the top ends of the sliding seat (66) and the moving seat (64) are provided with a spraying plate (71) on both sides of the cleaning plate (7), and the lower surface of the cleaning plate (7) is provided with a cleaning sponge plate (73) for wiping the photovoltaic panel (41) through bolts.

4. The distributed photovoltaic power generation and energy storage device according to claim 3, characterized in that, The lower surface of the spraying plate (71) is equally spaced with a plurality of spray heads (72), the spraying plate (71) is a hollow structure, and one end of the spraying plate (71) is provided with an extendable and retractable hose, the plurality of spray heads (72) are communicated with the hose through the spraying plate (71), the other end of the hose is connected with a water supply pipe, and the water supply pipe is provided with a valve.

5. The distributed photovoltaic power generation and energy storage device according to claim 1, characterized in that, The inner wall of the flow guide groove (5) is further provided with a flushing plate (52) near the cleaning plate (7), the flushing plate (52) is equally spaced with a plurality of flushing nozzles (53) for flushing the cleaning sponge plate (73), the inside of the flushing plate (52) is a hollow structure, one end of the flushing plate (52) is also communicated with a hose, the other end of the hose is also connected with a water supply pipe, the water supply pipe is provided with a valve, and the plurality of flushing nozzles (53) are communicated with the flushing plate (52).

6. The distributed photovoltaic power generation and energy storage device according to claim 1, characterized in that, The inner bottom of the flow guide groove (5) is inclined, and one end of the flow guide groove (5) is communicated with a drain pipe (51), the top end of the drain pipe (51) extends into the flow guide groove (5) and corresponds to the inclined end, for discharging water in the flow guide groove (5); The drain pipe (51) is fixed on the main beam (3) and the support column (1) through a support, and a section of the drain pipe (51) between the main beam (3) and the support column (1) is in a hose structure.

7. The distributed photovoltaic power generation and energy storage device according to claim 1, characterized in that, Two outermost support columns (1) are respectively provided with a control box (42) and an inverter (8), and the control box (42) and the inverter (8) are connected with an energy storage cabinet (43) through wires, the energy storage cabinet (43) internally stores a storage battery, the control box (42) is internally provided with a solar controller, a timer and a PLC control switch, and the lower end of the roof frame (4) is equally spacedly provided with illuminating lamps.

Images