A distributed photovoltaic power generation device

Abstract

The application relates to the technical field of photovoltaic power generation equipment, in particular to a distributed photovoltaic power generation equipment which comprises a photovoltaic mechanism, the photovoltaic mechanism comprises a cylindrical photovoltaic panel, a mounting rack, a chain link plate, an electricity connection part, a box body, an L-shaped plate, an extension component and a magnetic piece, the mounting rack and the chain link plate are both provided with multiple groups and are alternately arranged, grooves are arranged on the two sides of the mounting rack, the chain link plate is rotationally connected with the grooves, an arc-shaped groove is arranged on the mounting rack, the two ends of the cylindrical photovoltaic panel are respectively connected with a positive pole column and a negative pole column, the positive pole column and the negative pole column are both detachably connected with the arc-shaped groove through the electricity connection part, openings are arranged at the two ends of the box body, one end of the L-shaped plate is slidably connected with the inner wall of the box body through the openings, the extension component is arranged on the inner side of the box body and is connected with the L-shaped plate, the magnetic piece is arranged on the inner side of the box body and is magnetically attracted with the mounting rack, and one end of the L-shaped plate is hingedly connected with the outermost mounting rack. The application can become a concave state when the illumination is insufficient, can achieve light condensation, and can guarantee a certain power generation capacity.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation equipment technology, and specifically to a distributed photovoltaic power generation device. Background Technology

[0002] Distributed photovoltaic (PV) power generation, simply put, refers to PV power generation facilities built near users, connected to the power distribution network, and whose generated electricity is mainly consumed and utilized locally.

[0003] Chinese patent CN118523710A discloses a photovoltaic device, including an air jet assembly. This assembly sprays air onto the upper surface of a photovoltaic panel, helping to remove dust and dirt, thus keeping the panel clean and improving photoelectric conversion efficiency. Simultaneously, because the air jet assembly is electrically connected to the photovoltaic panel, its operation can utilize the electricity generated by the photovoltaic panel itself, reducing dependence on an external power source. Furthermore, during the air jet process, the airflow helps dissipate heat from the photovoltaic panel, thereby lowering its operating temperature and mitigating the efficiency degradation caused by high temperatures.

[0004] However, the aforementioned existing technologies have the following drawbacks: photovoltaic panels are planar structures, and during installation, they can only be installed on the planar structure of buildings, resulting in a small installation range and inconvenience in use; in addition, when there is insufficient sunlight, the planar structure of photovoltaic panels cannot concentrate light, thus failing to guarantee power generation efficiency in environments with insufficient sunlight. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a distributed photovoltaic power generation device.

[0006] The technical solution of this invention: A distributed photovoltaic power generation device, comprising: A photovoltaic (PV) mechanism includes a cylindrical PV panel, a mounting frame, a link plate, a power connection part, a housing, an L-shaped plate, a telescopic component, and a magnetic component. Multiple sets of mounting frames and link plates are arranged alternately. Grooves are formed on both sides of the mounting frame. The link plates are rotatably connected to the grooves. An arc-shaped groove is formed on the mounting frame. A positive and a negative electrode are connected to both ends of the cylindrical PV panel, respectively. Both the positive and negative electrodes are detachably connected to the arc-shaped groove via the power connection part. Openings are formed at both ends of the housing. One end of the L-shaped plate passes through the opening and is slidably connected to the inner wall of the housing. The telescopic component is located inside the housing and connected to the L-shaped plate. The magnetic component is located inside the housing and magnetically attracts the mounting frame. One end of the L-shaped plate is hinged to the outermost mounting frame. The support mechanism includes a base, a column, a U-shaped component, and a motor; two sets of columns are provided and connected to the base; two sets of U-shaped components are provided and connected to the box body; the two sets of U-shaped components are connected to rod a; the column is rotatably connected to rod a; a plate a is connected to the column; the motor is located on plate a and is connected to rod a for transmission.

[0007] Preferably, the electrical contact part includes an outer shell a, an outer shell b, a conductive ring, a conductive inner shell, and a wire; the outer shell b is connected to the outside of the positive and negative terminals; the conductive ring is connected to the outside of the positive and negative terminals; the conductive inner shell is disposed inside the outer shell a; the conductive inner shell is rotatably connected to the conductive ring; and the wire is connected to the conductive inner shell.

[0008] Preferably, an arc-shaped plate is detachably connected to the mounting bracket at the arc-shaped groove; the outer casing b is rotatably connected to the arc-shaped groove and the arc-shaped plate.

[0009] Preferably, the outer casing b is connected to circumferentially distributed fan blades; the mounting bracket b is connected to wiping cotton; the wiping cotton is attached to the surface of the cylindrical photovoltaic panel.

[0010] Preferably, the outermost mounting bracket has an insertion port on its groove sidewall; an insertion shaft is inserted into the insertion port; one end of the L-shaped plate has a through groove; the insertion shaft passes through the through groove; and nuts are threaded to both ends of the insertion shaft.

[0011] Preferably, one end of rod a is connected to gear a; the output end of the motor is connected to gear b; gear b meshes with gear a.

[0012] Preferably, a controller a is provided on the base; a sensor is connected to the L-shaped plate to monitor the light intensity and send a signal back to the controller.

[0013] Preferably, the base is provided with a functional box, which contains a battery, a combiner box, an inverter, and a controller b.

[0014] Preferably, the back of the box has an opening; a door panel that fits the opening is hinged to the back of the box.

[0015] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: By incorporating a photovoltaic mechanism, multiple cylindrical photovoltaic panels are mounted on a chain structure composed of multiple mounting frames and chain links. When the light intensity weakens, the chain structure is made concave to form an arc shape, which in turn causes the cylindrical photovoltaic panels to form concave arc shapes. When sunlight shines on the cylindrical photovoltaic panels, the reflected sunlight will shine on other cylindrical photovoltaic panels. Through this multiple reflection and convergence, the light intensity falling on the cylindrical photovoltaic panels is increased, thus ensuring a certain amount of power generation even under conditions of insufficient sunlight, such as cloudy days or overcast skies.

[0016] By removing the chain structure and then the cylindrical photovoltaic panels, the distribution of the cylindrical photovoltaic panels can be freely changed due to the flexibility of the chain structure. This allows the cylindrical photovoltaic panels to be installed on curved building surfaces, significantly increasing their installation range. Furthermore, the chain mechanism can roll multiple cylindrical photovoltaic panels into a "bamboo slip" shape, making them easy to store and transport. Attached Figure Description

[0017] Figure 1 A three-dimensional representation of an embodiment of the present invention Figure 1 ; Figure 2 A three-dimensional representation of an embodiment of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the mounting structure of the mounting frame and the cylindrical photovoltaic panel in one embodiment of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the connection structure between the photovoltaic mechanism and the support mechanism in one embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the box in one embodiment of the present invention; Figure 7 This is a schematic diagram of the structure when the chain structure is concave into an arc shape in one embodiment of the present invention.

[0018] Reference numerals: 1. Base; 2. Column; 3. Functional box; 4. Motor; 5. Mounting bracket; 501. Arc groove; 6. Chain link plate; 7. Cylindrical photovoltaic panel; 8. L-shaped plate; 9. Sensor; 10. Box body; 11. U-shaped part; 12. Gear a; 13. Gear b; 14. Plate a; 15. Wiping cotton; 16. Door panel; 17. Telescopic component; 18. Magnetic component; 19. Nut; 20. Insert shaft; 21. Arc plate; 22. Fan blade; 23. Outer shell b; 24. Conductive ring; 25. Positive electrode post; 26. Conductive inner shell; 27. Outer shell a; 28. Wire. Detailed Implementation

[0019] Example 1, as Figures 1-7 As shown, the distributed photovoltaic power generation device proposed in this invention includes a photovoltaic mechanism and a support mechanism; The photovoltaic structure includes a cylindrical photovoltaic panel 7, a mounting frame 5, a chain link plate 6, a power connection part, a housing 10, an L-shaped plate 8, a telescopic component 17, and a magnetic component 18. Multiple sets of mounting frames 5 and chain link plates 6 are provided and alternately arranged. Grooves are provided on both sides of the mounting frame 5. The chain link plates 6 are rotatably connected to the grooves. Multiple sets of mounting frames 5 and chain link plates 6 form a chain structure, which can be freely bent and deformed, thereby changing the distribution of the cylindrical photovoltaic panel 7. An arc-shaped groove 501 is provided on the mounting frame 5. Positive electrode posts 25 and negative electrode posts are respectively connected to both ends of the cylindrical photovoltaic panel 7. Both the positive electrode post 25 and the negative electrode post... The junction is detachably connected to the arc-shaped groove 501 via a power-connecting part; the power-connecting part includes a housing a27, a housing b23, a conductive ring 24, a conductive inner shell 26, and a wire 28; the housing b23 is connected to the outside of the positive terminal 25 and the negative terminal; the conductive ring 24 is connected to the outside of the positive terminal 25 and the negative terminal; the conductive inner shell 26 is located inside the housing a27; the conductive inner shell 26 is rotatably connected to the conductive ring 24, and the conductive ring 24 is made of materials such as brass and copper; the conductive inner shell 26 does not contact the positive terminal 25 and the negative terminal; the wire 28 is connected to the conductive inner shell 26; the mounting bracket 5 is located on the arc-shaped groove 501. An arc-shaped plate 21 is detachably connected to the cylindrical photovoltaic panel 7. The detachable connection method includes, but is not limited to, bolts. Disassembling the arc-shaped plate 21 facilitates the removal of the positive and negative terminals from the arc-shaped groove 501, thereby facilitating the removal of the cylindrical photovoltaic panel 7. The outer casing b23 is rotatably connected to the arc-shaped groove 501 and the arc-shaped plate 21. The outer casing b23 protects the positive and negative terminals. Openings are provided at both ends of the housing 10. One end of the L-shaped plate 8 passes through the opening and is slidably connected to the inner wall of the housing 10. A telescopic component 17 is located inside the housing 10 and connected to the L-shaped plate 8. The telescopic component 17 includes, but is not limited to, devices such as a dual-axis cylinder; the magnetic component 18 is located inside the housing 10 and is magnetically attracted to the mounting bracket 5. The magnetic component 18 includes, but is not limited to, an electromagnet, and is controlled to open and close by a controller a. The back of the mounting bracket 5 facing the magnetic component 18, i.e., the back of the mounting bracket 5 located in the middle position, is provided with a magnet block; one end of the L-shaped plate 8 is hinged to the outermost mounting bracket 5; an opening is provided on the back of the housing 10; a door panel 16 adapted to the opening is hinged to the back of the housing 10; by opening the door panel 16, the magnetic component 18 and the telescopic component 17 can be inspected and replaced.

[0020] The base 1 is equipped with a controller a; controller a includes, but is not limited to, a PLC controller; the L-shaped plate 8 is connected to a sensor 9 for monitoring light intensity and feeding back signals to the controller; the sensor 9 includes, but is not limited to, an illuminance sensor 9; the base 1 is equipped with a function box 3, which contains a battery, a combiner box, an inverter, and a controller b; the cylindrical photovoltaic panel 7 converts light energy into direct current, which is then transmitted to the combiner box and other equipment via wires 28 to collect the power. After that, the inverter converts the direct current into alternating current. This is an existing photoelectric conversion technology, which will not be described in detail here.

[0021] It should be noted that the cylindrical photovoltaic panels 7 are connected in parallel. When one of the cylindrical photovoltaic panels 7 is damaged, the power of the entire photovoltaic equipment is reduced by 1 / N, where N is the number of cylindrical photovoltaic panels 7. This significantly reduces the impact of local damage and limits the fault to the small cylindrical photovoltaic panel 7 that is damaged, eliminating the need to replace the entire photovoltaic module.

[0022] The support mechanism includes a base 1, a column 2, a U-shaped component 11, and a motor 4; the column 2 has two sets and is connected to the base 1; the U-shaped component 11 has two sets and is connected to the box body 10; the two sets of U-shaped components 11 are connected to a rod a; the column 2 is rotatably connected to the rod a; a plate a14 is connected to the column 2; the motor 4 is located on the plate a14 and is connected to the rod a for transmission; a gear a12 is connected to one end of the rod a; a gear b13 is connected to the output end of the motor 4; the gear b13 meshes with the gear a12.

[0023] It should be noted that the cylindrical photovoltaic panel 7 is manufactured by a crystalline silicon cutting and encapsulation method, in which a PN junction is formed on the cylindrical silicon material through a doping process; then positive and negative electrodes are fabricated on the two end faces or sides of the cylinder; the cylindrical battery preform is cut into small units with arc-shaped surfaces; multiple arc-shaped units are connected in parallel or in series and encapsulated into a complete cylindrical photovoltaic panel 7; the above is the manufacturing process of the cylindrical photovoltaic panel 7, which is existing technology and will not be described in detail here.

[0024] In this embodiment, the motor 4 drives the gear b13 to rotate, the gear b13 drives the gear a12 to rotate, the gear a12 drives the rod a to rotate, the rod a drives the U-shaped part 11 to rotate, and the U-shaped part 11 drives the box body 10 to rotate, thereby adjusting the orientation of the cylindrical photovoltaic panel 7 so that the cylindrical photovoltaic panel 7 faces the sun.

[0025] When sensor 9 detects that the light intensity in the external environment is below a threshold, sensor 9 sends a signal to controller a. The controller then activates magnetic component 18, which attracts the magnet block. The magnet block causes the middle mounting bracket 5 to move towards the housing 10. Simultaneously, controller a controls the telescopic component 17 to operate. The telescopic component 17 pulls the L-shaped plates 8 on both sides towards each other. The L-shaped plates 8 pull the outermost mounting brackets 5 towards each other, and together with the middle mounting bracket 5 moving towards the housing 10, the originally horizontal chain structure bends into an arc shape, thus causing the horizontally distributed cylindrical photovoltaic panels to... The plate 7 becomes a concave arc structure. When sunlight shines on the cylindrical photovoltaic panel 7, the reflected sunlight will shine on the cylindrical photovoltaic panels 7 in other positions. Through this multiple reflection and convergence, the intensity of the light falling on the cylindrical photovoltaic panel 7 is increased, so that a certain amount of power generation can still be guaranteed under conditions of insufficient sunlight, such as cloudy days or overcast days. When there is sufficient sunlight, the sensor 9 will also feed back to the controller a. The controller a controls the telescopic component 17 to work and at the same time closes the magnetic component 18, so that the chain structure returns to a horizontal state, and thus the cylindrical photovoltaic panels 7 return to a horizontal distribution state.

[0026] Example 2, as Figures 3-4 As shown, the distributed photovoltaic power generation device proposed in this invention, compared with Embodiment 1, further includes a fan blade 22 circumferentially distributed on the outer shell b23; a wiping cotton 15 is connected to the mounting frame 5b, and the wiping cotton 15 is detachably connected to the mounting frame 5b. The detachable connection includes, but is not limited to, adhesive bonding, which facilitates the replacement of the wiping cotton 15; the wiping cotton 15 is attached to the surface of the cylindrical photovoltaic panel 7.

[0027] In this embodiment, when the cylindrical photovoltaic panel 7 is in use and the wind is strong, the wind will drive the fan blade 22 to rotate. The fan blade 22 will drive the outer shell b23 to rotate within the arc groove 501, which in turn will drive the entire cylindrical photovoltaic panel 7 to rotate through the positive electrode post 25 and the negative electrode post, making it easier to wipe away the dust on its surface and realize the dust self-cleaning function of the cylindrical photovoltaic panel 7.

[0028] Example 3, as Figure 5 As shown, the distributed photovoltaic power generation equipment proposed in this invention, compared with Embodiment 2, further includes an insertion port on the groove sidewall of the outermost mounting bracket 5; an insertion shaft 20 is inserted into the insertion port; a through groove is opened at one end of the L-shaped plate 8; the insertion shaft 20 passes through the through groove; and nuts 19 are threaded to both ends of the insertion shaft 20.

[0029] In this embodiment, by unscrewing the nuts 19 from both ends of the insert shaft 20 and then pulling out the insert shaft 20, the mounting brackets 5 at both ends can be removed from the L-shaped plate 8, thereby removing the chain structure and the cylindrical photovoltaic panel 7. Since the chain structure can be bent freely, the distribution state of the cylindrical photovoltaic panel 7 can be changed freely, allowing the cylindrical photovoltaic panel 7 to be installed on the surface of the curved building, significantly increasing its installation range. Furthermore, the chain mechanism can roll multiple cylindrical photovoltaic panels 7 into a "bamboo slip" shape, thus facilitating their storage and transportation.

[0030] In summary, the motor 4 drives gear b13 to rotate, gear b13 drives gear a12 to rotate, gear a12 drives rod a to rotate, rod a drives U-shaped component 11 to rotate, and U-shaped component 11 drives box 10 to rotate, thereby adjusting the orientation of the cylindrical photovoltaic panel 7 so that the cylindrical photovoltaic panel 7 faces the sun.

[0031] When sensor 9 detects that the light intensity in the external environment is below a threshold, sensor 9 sends a signal to controller a. The controller then activates magnetic component 18, which attracts the magnet block. The magnet block causes the middle mounting bracket 5 to move towards the housing 10. Simultaneously, controller a controls the telescopic component 17 to operate. The telescopic component 17 pulls the L-shaped plates 8 on both sides towards each other. The L-shaped plates 8 pull the outermost mounting brackets 5 towards each other, and together with the middle mounting bracket 5 moving towards the housing 10, the originally horizontal chain structure bends into an arc shape, thus causing the horizontally distributed cylindrical photovoltaic panels to... The plate 7 becomes a concave arc structure. When sunlight shines on the cylindrical photovoltaic panel 7, the reflected sunlight will shine on the cylindrical photovoltaic panels 7 in other positions. Through this multiple reflection and convergence, the intensity of the light falling on the cylindrical photovoltaic panel 7 is increased, so that a certain amount of power generation can still be guaranteed under conditions of insufficient sunlight, such as cloudy days or overcast days. When there is sufficient sunlight, the sensor 9 will also feed back to the controller a. The controller a controls the telescopic component 17 to work and at the same time closes the magnetic component 18, so that the chain structure returns to a horizontal state, and thus the cylindrical photovoltaic panels 7 return to a horizontal distribution state.

[0032] When the cylindrical photovoltaic panel 7 is in use, if the wind is strong, the wind will drive the fan blade 22 to rotate. The fan blade 22 will drive the outer casing b23 to rotate within the arc groove 501, which in turn will drive the entire cylindrical photovoltaic panel 7 to rotate through the positive electrode post 25 and the negative electrode post. This makes it easier to wipe away the dust on its surface, realizing the self-cleaning function of the cylindrical photovoltaic panel 7, and the cleaning process will not block the sunlight.

[0033] By unscrewing the nuts 19 from both ends of the insert shaft 20 and then pulling out the insert shaft 20, the mounting brackets 5 at both ends can be removed from the L-shaped plate 8, thereby removing the chain structure and the cylindrical photovoltaic panel 7. Since the chain structure can be bent freely, the distribution of the cylindrical photovoltaic panel 7 can be changed freely, allowing the cylindrical photovoltaic panel 7 to be installed on the surface of curved buildings, significantly increasing its installation range. Furthermore, the chain mechanism can roll multiple cylindrical photovoltaic panels 7 into a "bamboo slip" shape, making them easy to store and transport.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A distributed photovoltaic power generation device, characterized in that, include: The photovoltaic structure includes a cylindrical photovoltaic panel (7), a mounting frame (5), a link plate (6), a power connection part, a housing (10), an L-shaped plate (8), a telescopic component (17), and a magnetic component (18); the mounting frame (5) and the link plate (6) are provided in multiple sets and are arranged alternately; grooves are provided on both sides of the mounting frame (5); the link plate (6) is rotatably connected to the grooves; an arc-shaped groove (501) is provided on the mounting frame (5); positive electrode posts (25) are respectively connected to both ends of the cylindrical photovoltaic panel (7). The positive terminal (25) and the negative terminal are detachably connected to the arc groove (501) through the contact part; the two ends of the box (10) are provided with openings; one end of the L-shaped plate (8) passes through the opening and is slidably connected to the inner wall of the box (10); the telescopic component (17) is provided on the inner side of the box (10) and is connected to the L-shaped plate (8); the magnetic component (18) is provided on the inner side of the box (10) and is magnetically attracted to the mounting bracket (5); one end of the L-shaped plate (8) is hinged to the outermost mounting bracket (5); The support mechanism includes a base (1), a column (2), a U-shaped part (11) and a motor (4); the column (2) has two sets and is connected to the base (1); the U-shaped part (11) has two sets and is connected to the box (10); the two sets of U-shaped parts (11) are connected to rod a; the column (2) is rotatably connected to rod a; plate a (14) is connected on the column (2); the motor (4) is located on plate a (14) and is connected to rod a for transmission.

2. The distributed photovoltaic power generation equipment according to claim 1, characterized in that, The electrical connection part includes a housing a (27), a housing b (23), a conductive ring (24), a conductive inner shell (26), and a wire (28); the housing b (23) is connected to the outside of the positive terminal (25) and the negative terminal; the conductive ring (24) is connected to the outside of the positive terminal (25) and the negative terminal; the conductive inner shell (26) is located inside the housing a (27); the conductive inner shell (26) is rotatably connected to the conductive ring (24); the wire (28) is connected to the conductive inner shell (26).

3. A distributed photovoltaic power generation device according to claim 2, characterized in that, An arc plate (21) is detachably connected to the mounting bracket (5) at the arc groove (501); the outer shell b (23) is rotatably connected to the arc groove (501) and the arc plate (21).

4. A distributed photovoltaic power generation device according to claim 2, characterized in that, The outer shell b (23) is connected to a fan blade (22) distributed in a circle; the mounting bracket (5) b is connected to a wiping cotton (15); the wiping cotton (15) is attached to the surface of the cylindrical photovoltaic panel (7).

5. A distributed photovoltaic power generation device according to claim 1, characterized in that, The outermost mounting bracket (5) has a slot on the groove sidewall; a shaft (20) is inserted into the slot; a through groove is provided at one end of the L-shaped plate (8); the shaft (20) passes through the through groove; and nuts (19) are threaded to both ends of the shaft (20).

6. A distributed photovoltaic power generation device according to claim 1, characterized in that, One end of rod a is connected to gear a (12); the output end of motor (4) is connected to gear b (13); gear b (13) meshes with gear a (12).

7. A distributed photovoltaic power generation device according to claim 1, characterized in that, A controller a is provided on the base (1); a sensor (9) is connected to the L-shaped plate (8) to monitor the light intensity and send a signal back to the controller.

8. A distributed photovoltaic power generation device according to claim 1, characterized in that, The base (1) is equipped with a function box (3), which contains a battery, a combiner box, an inverter and a controller b.

9. A distributed photovoltaic power generation device according to claim 1, characterized in that, An opening is provided on the back of the box (10); a door panel (16) adapted to the opening is hinged to the back of the box (10).

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