Distributed photovoltaic grid-connected power generation system

Abstract

The invention, which relates to the technical field of the power generation system, discloses a distributed photovoltaic grid-connected power generation system comprising a support frame and an extrusion assembly. The number of the supporting frames is three, two corresponding connecting strips are fixed to the lower sides of the three supporting frames, two corresponding photovoltaic assembly bodies are placed on the upper sides of the three supporting frames, and four corresponding height adjusting assemblies are installed on the lower sides of the two connecting strips; the extrusion assembly comprises connecting frames, rotating shafts, gear rings, cam rings and torsion springs, the two corresponding connecting frames are fixed to the upper side of the supporting frame, two corresponding rotating holes are formed in the left side and the right side of each connecting frame, the rotating shafts are rotationally connected into the rotating holes, the gear rings are fixed to the circumferential surfaces of the rotating shafts, and the cam rings are fixed to the gear rings. The situation that the surrounding photovoltaic modules are affected when a group of photovoltaic modules are disassembled can be avoided, and the overall disassembly can be carried out, so that the disassembly efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation systems, and particularly to a distributed photovoltaic grid-connected power generation system. Background Art

[0002] With the progress of society and the development of technology, people are paying more and more attention to the development of clean energy. Among them, solar power generation is becoming more and more popular. As a renewable energy source, solar energy not only has a wide coverage area, but also is inexhaustible. Therefore, people are using solar energy more and more, and photovoltaics has been rapidly developed and utilized. With the development of photovoltaic product technology and the decline in cost, many enterprises and factories are using photovoltaic power generation. Among them, the rooftop photovoltaic grid-connected power generation system installs photovoltaic modules on the roof. The photovoltaic modules are mainly arranged parallel to the roof or at a certain angle to the roof. In this setting method, the photovoltaic modules are mainly located on the sunny side of the roof; The authorized announcement number CN 213817641 U proposes a distributed rooftop photovoltaic grid-connected power generation system, which relates to the technical field of solar photovoltaics and aims to solve the problems of installation and disassembly of distributed rooftop photovoltaic modules. The key points of its technical solution are: including photovoltaic modules and an installation component for installing the photovoltaic modules. The installation component includes a fixing frame fixedly connected to the roof and a plurality of installation frames fixedly connected to the fixing frame. An eccentric wheel is rotatably connected to the installation frame. A gap for clamping the photovoltaic module is formed between the outer peripheral surface of the eccentric wheel and the fixing frame. The installation component further includes a driving mechanism for driving the eccentric wheel to rotate and a locking mechanism for locking the eccentric wheel. By improving the installation component, a plurality of eccentric wheels are used to fix a plurality of photovoltaic modules. When disassembling one group of photovoltaic modules, it will not cause position deviation, loose connection, etc. to the surrounding photovoltaic modules; However, the above solution requires the user to individually control the rotation of all the eccentric wheels during disassembly in order to perform disassembly, which is relatively cumbersome. Therefore, we propose a distributed photovoltaic grid-connected power generation system. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a distributed photovoltaic grid-connected power generation system, which can avoid affecting the surrounding photovoltaic modules when disassembling one group of photovoltaic modules, and can improve the disassembly efficiency during overall disassembly, and can effectively solve the problems in the background art.

[0004] To achieve the above object, the present invention provides the following technical solution: A distributed photovoltaic grid-connected power generation system, including a support frame and an extrusion component; Support frames: three are provided, two corresponding connecting strips are fixed on the lower side of the three support frames, two corresponding photovoltaic module bodies are placed on the upper side of the three support frames, and four corresponding height adjustment components are installed on the lower side of the two connecting strips; Extrusion assembly: comprises a connecting frame, a rotating shaft, a gear ring, a cam ring and a torsion spring, two corresponding connecting frames are fixed on the upper side of the support frame, two corresponding rotating holes are provided on the left and right sides of the connecting frame, the rotating shaft is rotatably connected inside the rotating hole, a gear ring is fixed on the circumferential surface of the rotating shaft, the gear ring is located inside the connecting frame, the two gear rings are fitted together, a cam ring is fixed on the circumferential surface of the rotating shaft, the cam ring is located outside the connecting frame, a torsion spring is fixed on the circumferential surface of the rotating shaft, one end of the torsion spring is fixed on the end face of the cam ring, the other end of the torsion spring is fixed on the side face of the connecting frame, two corresponding fixing assemblies are installed on the left and right sides of the connecting frame, a toggle assembly is installed inside the two connecting frames, the toggle assembly is connected to four gear rings, a limiting assembly is installed on the upper side inside the connecting frame, and the extrusion disk is extruded by setting an extrusion assembly.

[0005] Furthermore, the fixing assembly includes a fixing plate, a sliding rod, an extrusion disk, a fastening plate and a spring, two corresponding fixing plates are fixed on the left and right sides of the connecting frame, a sliding hole is opened in the middle of the fixing plate, the sliding hole is slidably connected with a sliding rod inside, the upper end of the sliding rod is fixed with an extrusion disk, the lower end of the sliding rod is fixed with a fastening plate, a spring is sleeved on the circumferential surface of the sliding rod, the lower end of the spring is fixed on the upper side of the fastening plate, the upper end of the spring is fixed on the lower side of the fixing plate, the cam ring is fitted with the extrusion disk, and the photovoltaic assembly body is fixed by setting a fixing assembly.

[0006] Furthermore, the toggle assembly includes a rack, an L-shaped pull rod and a connecting rod. The sides of the two connecting frames fixed on the upper side of the support plate are provided with sliding openings. Two corresponding L-shaped pull rods are slidably connected inside the sliding openings. The two L-shaped pull rods are fitted together. Racks are fixed on the sides of the L-shaped pull rods. The four racks are respectively meshed with four gear rings. Two corresponding connecting rods are fixed between the four racks. The gear ring is driven to rotate by setting the toggle assembly.

[0007] Further, the limiting component includes a threaded rod, a moving block, and a turntable. A strip-shaped opening is formed in the upper side of the connection frame, a rotating hole is formed inside the strip-shaped opening, a threaded rod is rotatably connected inside the rotating hole, a moving block is slidably connected inside the strip-shaped opening, a threaded hole is formed in the upper side edge of the moving block, the threaded rod is threadedly connected inside the threaded hole, two corresponding turntables are fixed at the left and right ends of the threaded rod, clamping grooves are formed in the upper sides of two racks corresponding to the moving block, and the lower side of the moving block is clamped inside the clamping grooves. The racks are limited by arranging limiting rings.

[0008] Further, the height adjustment component includes a connecting column, a connecting hole, a connecting pipe, and a bolt. Two corresponding connecting columns are fixed on the lower side of the connecting strip, uniformly distributed connecting holes are formed on the circumferential surface of the connecting column, a connecting pipe is sleeved on the surface of the connecting column, an installation hole is formed at the upper end of the surface of the connecting pipe, and the installation hole is connected to the corresponding connecting hole through a bolt. The heights of the two connecting strips are adjusted by arranging the height adjustment component.

[0009] Further, a support disc is fixed at the lower end of the connecting pipe, and uniformly distributed fixing holes are formed in the edge of the support disc. The connecting pipe is fixed by arranging the support disc and the fixing holes.

[0010] Further, an anti-slip ring is fixed on the circumferential surface of the turntable, and uniformly distributed anti-slip grooves are formed on the circumferential surface of the anti-slip ring. It is convenient for users to turn the turntable by arranging the anti-slip ring.

[0011] Further, two corresponding support strips are fixed on the upper side of the connecting strip, and the four support strips are respectively attached to the lower sides of the two photovoltaic module bodies. The photovoltaic module bodies are supported by arranging the support strips.

[0012] Further, an anti-slip strip is fixed on the lower side of the fastening plate, and uniformly distributed anti-slip strips are fixed on the lower side of the anti-slip strip. The photovoltaic module body is attached to the corresponding anti-slip strip. The firmness of the fastening plate for fixing the photovoltaic module body is improved by arranging the anti-slip strip.

[0013] Further, two corresponding strip-shaped grooves are formed in the upper side of the support frame, and cushion strips are fixed inside the strip-shaped grooves. The photovoltaic module bodies are further supported by arranging the cushion strips.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This distributed photovoltaic grid-connected power generation system has the following advantages: 1. By setting the toggle assembly, when the overall disassembly is required, all the turntables can be rotated to rotate all the threaded rods to drive all the moving blocks to move away from all the racks, and then all the L-shaped pull bars on the front side can be pulled at the same time to move all the racks, and the movement of all the racks drives all the gear rings to rotate, and the rotation of all the gear rings drives all the cam rings to rotate away from all the extrusion plates. At this time, all the extrusion plates move downward under the action of all the springs to drive all the fastening plates upward to separate from the photovoltaic module body. After separation, all the photovoltaic module bodies can be quickly disassembled, which is extremely convenient; 2. By setting the limit assembly, when the photovoltaic module body on the left side needs to be disassembled, the two threaded rods in the middle can be rotated to make the two moving blocks in the middle move to the right, so that they are away from the two slots opened on the upper sides of the two racks on the left side of the middle part, and then the two L-shaped pull rods on the left side of the middle part are pulled to move so that the two gear rings on the left side of the middle part are rotated. In this case, the two cam rings on the left side of the middle part can be moved away from the two extrusion disks on the left side of the middle part. In this case, the two fastening plates on the left side of the middle part can be moved away from the photovoltaic module body. In this case, the photovoltaic module body on the left side can be disassembled, and the photovoltaic module body on the right side will not be affected after disassembly, thereby avoiding the loosening and falling off of the photovoltaic module body on the right side. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 A is an enlarged structural diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the extrusion assembly of the present invention; Figure 4 A schematic diagram of the structure of the toggle assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the gear ring of the present invention.

[0016] In the figure: 1 support frame, 2 extrusion assembly, 21 connecting frame, 22 rotating shaft, 23 gear ring, 24 cam ring, 25 torsion spring, 3 fixing assembly, 31 fixing plate, 32 sliding rod, 33 extrusion plate, 34 fastening plate, 35 spring, 4 toggle assembly, 41 rack, 42 ​​L-shaped pull rod, 43 connecting rod, 5 limit assembly, 51 threaded rod, 52 moving block, 53 turntable, 6 height adjustment assembly, 61 connecting column, 62 connecting hole, 63 connecting pipe, 64 bolt, 7 support plate, 8 anti-slip ring, 9 support bar, 10 connecting bar, 11 photovoltaic module body, 12 anti-slip bar, 13 pad bar. DETAILED DESCRIPTION

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-5 , this embodiment provides a technical solution: a distributed photovoltaic grid-connected power generation system, including a support frame 1 and an extrusion assembly 2; Support frame 1: There are three. Two corresponding connecting bars 10 are fixed to the lower sides of the three support frames 1. Two corresponding photovoltaic module bodies 11 are placed on the upper sides of the three support frames 1. Four corresponding height adjustment components 6 are installed on the lower sides of the two connecting bars 10. The height adjustment component 6 includes a connecting column 61, a connecting hole 62, a connecting pipe 63, and a bolt 64. Two corresponding connecting columns 61 are fixed to the lower sides of the connecting bar 10. Uniformly distributed connecting holes 62 are formed on the circumferential surface of the connecting column 61. A connecting pipe 63 is sleeved on the surface of the connecting column 61. An installation hole is formed at the upper end of the surface of the connecting pipe 63. The installation hole is connected to the corresponding connecting hole 62 through a bolt 64. The height of the two connecting bars 10 is adjusted by setting the height adjustment component 6; Extrusion assembly 2: includes a connecting frame 21, a rotating shaft 22, a gear ring 23, a cam ring 24 and a torsion spring 25. Two corresponding connecting frames 21 are fixed on the upper side of the support frame 1. Two corresponding rotating holes are provided on the left and right sides of the connecting frame 21. The rotating shaft 22 is rotatably connected inside the rotating hole. A gear ring 23 is fixed on the circumferential surface of the rotating shaft 22. The gear ring 23 is located inside the connecting frame 21. The two gear rings 23 fit together. A cam ring 24 is fixed on the circumferential surface of the rotating shaft 22. The cam ring 24 is located outside the connecting frame 21. A torsion spring 25 is fixed on the circumferential surface of the rotating shaft 22. One end of the torsion spring 25 is fixed on the end face of the cam ring 24. The other end of the torsion spring 25 It is fixed on the side of the connecting frame 21. Two corresponding fixing components 3 are installed on the left and right sides of the connecting frame 21. A toggle component 4 is installed inside the two connecting frames 21. The toggle component 4 is connected to four gear rings 23. A limit component 5 is installed on the upper side of the connecting frame 21. The fixing component 3 includes a fixing plate 31, a slide rod 32, an extrusion disk 33, a fastening plate 34 and a spring 35. Two corresponding fixing plates 31 are fixed on the left and right sides of the connecting frame 21. A sliding hole is opened in the middle of the fixing plate 31. The sliding hole is slidably connected to the inside of the sliding hole. The upper end of the sliding rod 32 is fixed with an extrusion disk 33, the lower end of the sliding rod 32 is fixed with a fastening plate 34, and the circumferential surface of the sliding rod 32 is sleeved with a spring 35 The lower end of the spring 35 is fixed to the upper side of the fastening plate 34, and the upper end of the spring 35 is fixed to the lower side of the fixed plate 31. The cam ring 24 fits with the extrusion plate 33. The toggle assembly 4 includes a rack 41, an L-shaped pull rod 42 and a connecting rod 43. The sides of the two connecting frames 21 fixed on the upper side of the support plate 1 are provided with sliding openings, and the inner sliding openings are slidably connected with two corresponding L-shaped pull rods 42. The two L-shaped pull rods 42 fit together, and the sides of the L-shaped pull rods 42 are fixed with racks 41. The four racks 41 are respectively meshed with the four gear rings 23. Two corresponding connecting rods 43 are fixed between the four racks 41. The limiting assembly 5 includes a threaded rod 51, a moving block 52 and a turntable 53. The upper side of the connecting frame 21 A strip-shaped opening is provided, a rotating hole is provided inside the strip-shaped opening, a threaded rod 51 is rotatably connected inside the rotating hole, a moving block 52 is slidably connected inside the strip-shaped opening, a threaded hole is provided on the upper side edge of the moving block 52, the threaded rod 51 is threadedly connected inside the threaded hole, two corresponding turntables 53 are fixed on the left and right ends of the threaded rod 51, a slot is provided on the upper side of the two racks 41 corresponding to the moving block 52, the lower side of the moving block 52 is clamped inside the slot, the rack 41 is limited by setting a limiting ring 5, the gear ring 23 is driven to rotate by setting a toggle assembly 4, the photovoltaic assembly body 11 is fixed by setting a fixing assembly 3, and the extrusion assembly 2 is used to extrude the extrusion disk 33.

[0019] Among them: A support disk 7 is fixed to the lower end of the connecting pipe 63. Fixing holes are evenly distributed on the edge of the support disk 7. The connecting pipe 63 is fixed by arranging the support disk 7 and the fixing holes.

[0020] Among them: An anti-slip ring 8 is fixed to the circumferential surface of the turntable 53. Anti-slip grooves are evenly distributed on the circumferential surface of the anti-slip ring 8. The turntable 53 is conveniently toggled by arranging the anti-slip ring 8.

[0021] Among them: Two corresponding support bars 9 are fixed to the upper side of the connecting bar 10. The four support bars 9 are respectively in contact with the lower sides of the two photovoltaic module bodies 11. The photovoltaic module bodies 11 are supported by arranging the support bars 9.

[0022] Among them: An anti-slip bar 12 is fixed to the lower side of the fastening plate 34. Anti-slip bars are evenly distributed on the lower side of the anti-slip bar 12. The photovoltaic module body 11 is in contact with the corresponding anti-slip bars. The firmness of the fastening plate 34 for fixing the photovoltaic module body 11 is improved by arranging the anti-slip bar 12.

[0023] Among them: Two corresponding strip-shaped grooves are formed in the upper side of the support frame 1. A cushion strip 13 is fixed inside the strip-shaped grooves. The photovoltaic module body 11 is further supported by arranging the cushion strip 13.

[0024] The working principle of a distributed photovoltaic grid-connected power generation system provided by the present invention is as follows: First, when in use, remove four bolts 64 according to requirements, then adjust the positions of four connecting columns 61 according to requirements. After adjustment, use the four threads 64 to connect the four connecting columns 61 to the four connecting pipes 63 again. When overall disassembly is required after connection, all turntables 53 can be rotated to make all threaded rods 51 rotate, driving all moving blocks 52 to move away from all racks 41. Then, all L-shaped pull bars 42 on the front side can be pulled simultaneously to make all racks 41 move. All racks 41 moving drives all gear rings 23 to rotate. All gear rings 23 rotating drives all cam rings 24 to rotate away from all pressing disks 33. At this time, all pressing disks 33 move downward under the action of all springs 35, driving all fastening plates 34 to move upward and separate from the photovoltaic module body 11. After separation, all photovoltaic module bodies 11 can be quickly disassembled, which is extremely convenient. When the photovoltaic module body 11 on the left side needs to be disassembled, the two threaded rods 51 in the middle can be rotated to make the two moving blocks 52 in the middle move to the right, away from the two card slots opened on the upper sides of the two racks 41 on the left side of the middle. Then, pull the two L-shaped pull bars 42 on the left side of the middle to move, making the two gear rings 23 on the left side of the middle rotate. In this case, the two cam rings 23 on the left side of the middle can be made to move away from the two pressing disks 33 on the left side of the middle. In this case, the two fastening plates 34 on the left side of the middle can be made to move away from the photovoltaic module body 11. In this case, the photovoltaic module body 11 on the left side can be disassembled, and the disassembly will not affect the photovoltaic module body 11 on the right side, avoiding loosening and falling off of the photovoltaic module body 11 on the right side.

[0025] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A distributed photovoltaic grid-connected power generation system, characterized in that: It comprises a support frame (1) and an extrusion assembly (2); Support frames (1): three of them are provided, two corresponding connecting strips (10) are fixed to the lower sides of the three support frames (1), two corresponding photovoltaic module bodies (11) are placed on the upper sides of the three support frames (1), and four corresponding height adjustment modules (6) are installed on the lower sides of the two connecting strips (10); Extrusion assembly (2): comprising a connecting frame (21), a rotating shaft (22), a gear ring (23), a cam ring (24) and a torsion spring (25), wherein two corresponding connecting frames (21) are fixed on the upper side of the support frame (1), two corresponding rotating holes are provided on the left and right sides of the connecting frame (21), the rotating shaft (22) is rotatably connected inside the rotating hole, a gear ring (23) is fixed on the circumferential surface of the rotating shaft (22), the gear ring (23) is located inside the connecting frame (21), the two gear rings (23) are fitted together, and the cam ring (24) is fixed on the circumferential surface of the rotating shaft (22) The cam ring (24) is located outside the connecting frame (21); a torsion spring (25) is fixed on the circumferential surface of the rotating shaft (22); one end of the torsion spring (25) is fixed to the end surface of the cam ring (24); the other end of the torsion spring (25) is fixed to the side surface of the connecting frame (21); two corresponding fixing components (3) are installed on the left and right sides of the connecting frame (21); a toggle component (4) is installed inside the two connecting frames (21); the toggle component (4) is connected to the four gear rings (23); and a limit component (5) is installed on the upper side of the connecting frame (21).

2. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing plate (31), a sliding rod (32), an extrusion plate (33), a fastening plate (34) and a spring (35); two corresponding fixing plates (31) are fixed on the left and right sides of the connecting frame (21); a sliding hole is opened in the middle of the fixing plate (31); a sliding rod (32) is slidably connected inside the sliding hole; an extrusion plate (33) is fixed to the upper end of the sliding rod (32); a fastening plate (34) is fixed to the lower end of the sliding rod (32); a spring (35) is sleeved on the circumferential surface of the sliding rod (32); the lower end of the spring (35) is fixed to the upper side of the fastening plate (34); the upper end of the spring (35) is fixed to the lower side of the fixing plate (31); and the cam ring (24) is in contact with the extrusion plate (33).

3. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: The toggle assembly (4) comprises a rack (41), an L-shaped pull bar (42) and a connecting rod (43); the sides of the two connecting frames (21) fixed on the upper side of the support plate (1) are provided with sliding openings; two corresponding L-shaped pull bars (42) are slidably connected inside the sliding openings; the two L-shaped pull bars (42) are fitted together; a rack (41) is fixed on the side of the L-shaped pull bar (42); the four racks (41) are respectively meshed with the four gear rings (23); and two corresponding connecting rods (43) are fixed between the four racks (41).

4. A distributed photovoltaic grid-connected power generation system according to claim 3, characterized in that: The limit assembly (5) comprises a threaded rod (51), a moving block (52) and a rotating disk (53); a strip-shaped opening is provided on the upper side of the connecting frame (21); a rotating hole is provided inside the strip-shaped opening; the threaded rod (51) is rotatably connected inside the rotating hole; the moving block (52) is slidably connected inside the strip-shaped opening; a threaded hole is provided on the upper side edge of the moving block (52); the threaded rod (51) is threadedly connected inside the threaded hole; two corresponding rotating disks (53) are fixed at the left and right ends of the threaded rod (51); a clamping groove is provided on the upper side of two racks (41) corresponding to the moving block (52); and the lower side of the moving block (52) is clamped inside the clamping groove.

5. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: The height adjustment assembly (6) comprises a connecting column (61), a connecting hole (62), a connecting pipe (63) and a bolt (64); two corresponding connecting columns (61) are fixed to the lower side of the connecting strip (10); the connecting holes (62) are evenly distributed on the circumferential surface of the connecting column (61); the connecting pipe (63) is sleeved on the surface of the connecting column (61); the upper end of the surface of the connecting pipe (63) is provided with a mounting hole; the mounting hole is connected to the corresponding connecting hole (62) via a bolt (64).

6. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: A support plate (7) is fixed to the lower end of the connecting pipe (63), and evenly distributed fixing holes are provided on the edge of the support plate (7).

7. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: An anti-skid ring (8) is fixed on the circumferential surface of the rotating disk (53), and evenly distributed anti-skid grooves are provided on the circumferential surface of the anti-skid ring (8).

8. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: Two corresponding support bars (9) are fixed to the upper side of the connecting bar (10), and the four support bars (9) are respectively fitted to the lower sides of the two photovoltaic component bodies (11).

9. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: An anti-slip strip (12) is fixed to the lower side of the fastening plate (34), and evenly distributed anti-slip strips are fixed to the lower side of the anti-slip strip (12), and the photovoltaic module body (11) fits the corresponding anti-slip strip.

10. A distributed photovoltaic grid-connected power generation system according to claim 1, characterized in that: Two corresponding strip grooves are provided on the upper side of the support frame (1), and cushion strips (13) are fixed inside the strip grooves.

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