Solar photovoltaic power generation system grid-connected cabinet

Abstract

The utility model discloses a solar photovoltaic power generation system grid-connected cabinet, which comprises a grid-connected cabinet body and integrated plates, two groups of integrated plates are arranged in the grid-connected cabinet body, sliding rails are symmetrically arranged on the side walls of the integrated plates, sliding blocks are slidably arranged on the surfaces of the sliding rails, racks are arranged on the side walls of the sliding blocks, and the racks are arranged on the side walls of the racks. Two sets of supporting columns are installed on the side wall of each rack, a cooling fan is installed at one end of each supporting column, movable shafts are installed at the center positions of the integrated plates and movably connected with the integrated plates, the surfaces of the movable shafts are sleeved with gears, and the gears are engaged with the racks; and an electric push rod is mounted on one side of each integrated plate. According to the utility model, convenient reciprocating motion and up-and-down movement air blowing heat dissipation and convenient elastic buffer impact force counteracting are realized, good protection of the grid-connected cabinet is facilitated, and the air blowing heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grid-connected cabinets, in particular to a solar photovoltaic power generation system grid-connected cabinet. Background Art

[0002] Circuit grid connection refers to the process of connecting the transmission line of the generator set to the transmission network and starting to transmit electricity to the outside. This process effectively overcomes the shortcomings of independent power plants or small power systems due to resource and regional limitations, small construction scale, unstable power output, poor power supply quality, poor power surplus and shortage regulation capabilities, and weak ability to resist accidents and load shocks. At the same time, local resources are fully utilized. By connecting the generator set to the power supply grid, the shortage of power supply can be alleviated and the stability and reliability of the power system can be improved. The connection method of circuit grid connection is through a grid connection cabinet. In order to better grid-connect the solar photovoltaic power generation system, a solar photovoltaic power generation system grid connection cabinet is proposed.

[0003] For example, a distributed solar photovoltaic power generation system grid-connected cabinet disclosed in the authorization announcement number CN208385908U includes a cabinet, a main circuit breaker, a knife switch, which is arranged in the cabinet, an isolating switch protection door, which is arranged in the cabinet, and an electromagnetic lock, which is arranged on the isolating switch protection door, the electromagnetic lock is connected to the main circuit breaker, the isolating switch protection door is rectangular, the first end of which is hinged inside the cabinet, the second end of which is detachably connected to the inside of the cabinet through the electromagnetic lock, and the isolating switch protection door is arranged on the outside of the knife switch;

[0004] Although it realizes the locking function through the electromagnetic lock, it ensures that the knife switch can only be used when the system removes the load, effectively avoiding high-voltage arcs caused by load operation; and isolates the live area to ensure the personal safety of the operator and prevent the operator from operating incorrectly;

[0005] However, the problem that the existing power-connected cabinet is not conducive to convenient reciprocating movement and up-and-down movement for air blowing and heat dissipation and convenient elastic buffering to offset impact force during use is not solved, which is not conducive to good protection of the power-connected cabinet and affects the effect of air blowing and heat dissipation. Utility Model Content

[0006] The purpose of the utility model is to provide a grid-connected cabinet for a solar photovoltaic power generation system, so as to solve the problem in the above-mentioned background technology that the grid-connected cabinet is not convenient for reciprocating movement and up and down movement for air blowing and heat dissipation, and convenient elastic buffering to offset impact force, which is not conducive to good protection of the grid-connected cabinet and affects the effect of air blowing and heat dissipation.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solar photovoltaic power generation system grid-connected cabinet, comprising a grid-connected cabinet body and an integrated board, two groups of integrated boards are arranged inside the grid-connected cabinet body, slide rails are symmetrically installed on the side walls of the integrated boards, sliders are slidably installed on the surfaces of the slide rails, racks are installed on the side walls of the sliders, two groups of support columns are installed on the side walls of the racks, cooling fans are installed on one end of the support columns, movable shafts are installed at the center of the integrated boards, and the movable shafts are movably connected to the integrated boards, gears are set on the surfaces of the movable shafts, and the gears and racks are meshed with each other, electric push rods are installed on one side of the integrated boards, push arms are installed on the output ends of the electric push rods, and the push arms are connected to a group of sliders, multiple groups of protective frames are installed on the outer wall of the grid-connected cabinet body, two groups of integrated frames are symmetrically installed on the inner wall of the grid-connected cabinet body, and two groups of heat dissipation holes are symmetrically installed on the side walls of the grid-connected cabinet body.

[0008] Preferably, a servo motor is installed at the top of the integrated frame, a threaded rod is movably installed inside the integrated frame, and the output end of the servo motor is connected to the threaded rod.

[0009] Preferably, the surface of the threaded rod is covered with a threaded sleeve, and the threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is slidably connected to the integrated frame, and the threaded sleeve is connected to the integrated plate.

[0010] Preferably, sliding columns are installed on the side walls of the protection frame, and two sets of moving blocks are mounted on the surfaces of the sliding columns, and the moving blocks are slidably connected to the sliding columns.

[0011] Preferably, the surface of the sliding column on one side of the moving block is sleeved with a spring, and the spring is connected to the moving block.

[0012] Preferably, short connecting arms are installed on the side walls of the moving block, and a hinge shaft is installed at one end of the short connecting arms close to the moving block, and the short connecting arms are movably connected to the moving block through the hinge shaft.

[0013] Preferably, a long connecting arm is installed at one end of the short connecting arm away from the moving block, a pin is installed at one side of the long connecting arm close to the short connecting arm, and the long connecting arm is movably connected to the short connecting arm through the pin.

[0014] Preferably, a linkage shaft is installed at one end of the long connecting arm close to the protection frame, and the long connecting arm is movably connected to the protection frame through the linkage shaft, and a protective plate is installed at one end of the long connecting arm away from the protection frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the grid-connected cabinet not only realizes convenient reciprocating movement and up-and-down movement type air blowing and heat dissipation, and convenient elastic buffering to offset impact force, which facilitates good protection of the grid-connected cabinet, but also improves the effect of air blowing and heat dissipation;

[0016] (1) The cooling fan is used to blow air to dissipate heat inside the integrated frame, and the blown air is discharged from the cooling holes. The two groups of cooling holes play the role of air intake and exhaust. The electric push rod drives the push arm to move, and the push arm drives a group of sliders to slide on the surface of a group of slide rails. The group of sliders drives a group of racks to move, and the racks drive two groups of cooling fans to move. The group of racks drives the gears to rotate with the movable shaft as the axis, and the gears drive the other two groups of cooling fans to move through another group of racks, so that the multiple groups of cooling fans can realize reciprocating movement and cooling of the integrated frame to improve its cooling effect. The servo motor drives the threaded rod to rotate, and the threaded rod drives the threaded sleeve to move up and down. The threaded sleeve drives the integrated board and the cooling fan to move up and down. The cooling fan moves the integrated frame up and down to blow and dissipate heat, realizing convenient reciprocating movement and up and down movement type cooling, increasing the uniformity of cooling, and improving the cooling effect;

[0017] (2) The protective plate is driven to move by an external object, and the protective plate drives the long connecting arm to rotate with the linkage shaft as the axis. The long connecting arm drives the short connecting arm to rotate through the pin shaft, and the short connecting arm drives the moving block to move on the surface of the sliding column through the hinge shaft. The moving block squeezes the spring, and the spring provides a reverse force to the moving block to elastically buffer and offset the impact force to protect the integrated frame, thereby realizing convenient elastic buffering to offset the impact force and facilitating good protection of the grid-connected cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the protection frame of the utility model;

[0020] Figure 3 It is a front cross-sectional structural schematic diagram of the integrated frame of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the integrated board of the utility model;

[0022] Figure 5 It is a front view structural schematic diagram of the protective plate of the utility model.

[0023] In the figure: 1. Grid cabinet body; 2. Integrated frame; 3. Integrated board; 4. Protective frame; 5. Servo motor; 6. Threaded rod; 7. Threaded sleeve; 8. Gear; 9. Movable shaft; 10. Rack; 11. Cooling fan; 12. Support column; 13. Electric push rod; 14. Push arm; 15. Slider; 16. Slide rail; 17. Moving block; 18. Sliding column; 19. Spring; 20. Articulated shaft; 21. Short connecting arm; 22. Protective plate; 23. Pin shaft; 24. Long connecting arm; 25. Linkage shaft; 26. Heat dissipation hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides an embodiment: a solar photovoltaic power generation system grid-connected cabinet, including a grid-connected cabinet body 1 and an integrated board 3, two groups of integrated boards 3 are arranged inside the grid-connected cabinet body 1, the side walls of the integrated boards 3 are symmetrically installed with slide rails 16, the surfaces of the slide rails 16 are slidably installed with sliders 15, the side walls of the sliders 15 are installed with racks 10, the side walls of the racks 10 are installed with two groups of support columns 12, one end of the support columns 12 is installed with a cooling fan 11, the center position of the integrated board 3 is installed with a movable shaft 9, and the movable shaft 9 is installed with a cooling fan 11. The movable shaft 9 is movably connected with the integrated board 3, and the surface of the movable shaft 9 is provided with a gear 8, and the gear 8 is meshed with the rack 10, and an electric push rod 13 is installed on one side of the integrated board 3, and the electric push rod 13 plays a role of power drive, and a push arm 14 is installed at the output end of the electric push rod 13, and the push arm 14 is connected to a group of sliders 15, and multiple groups of protective frames 4 are installed on the outer wall of the grid cabinet body 1, and two groups of integrated frames 2 are symmetrically installed on the inner wall of the grid cabinet body 1, and two groups of heat dissipation holes 26 are symmetrically installed on the side wall of the grid cabinet body 1;

[0026] First, connect the grid cabinet body 1 with the photovoltaic power generation system and the external circuit. When the grid cabinet is working, heat will be generated inside. At this time, turn on the cooling fan 11, and the cooling fan 11 will blow air to dissipate heat inside the integrated frame 2. The blown air is discharged from the cooling holes 26. The two groups of cooling holes 26 play the role of air intake and exhaust. At the same time, turn on the electric push rod 13, and the electric push rod 13 drives the push arm 14 to move. The push arm 14 drives a group of sliders 15 to slide on the surface of a group of slide rails 16. The group of sliders 15 drives a group of racks 10 to move, and the racks 10 drive the two groups of cooling fans 11 to move. Under the mutual meshing of the racks 10 and the gears 8, the group of racks 10 drives the gears 8 to rotate around the movable shaft 9 as the axis, and the gears 8 are driven by the gears 8. Another set of racks 10 drives the other two sets of cooling fans 11 to move, so that multiple sets of cooling fans 11 can realize reciprocating movement of the inside of the integrated frame 2 to blow air for heat dissipation, so as to improve its heat dissipation effect. The servo motor 5 is turned on, and the servo motor 5 drives the threaded rod 6 to rotate. Under the threaded connection between the threaded rod 6 and the threaded sleeve 7, and under the sliding cooperation between the threaded sleeve 7 and the integrated frame 2, the threaded rod 6 drives the threaded sleeve 7 to move up and down, and the threaded sleeve 7 drives the integrated board 3 and the cooling fan 11 to move up and down. The cooling fan 11 moves the inside of the integrated frame 2 up and down to blow air for heat dissipation, realizing convenient reciprocating movement and up and down movement type blowing and heat dissipation, increasing the uniformity of blowing and heat dissipation, and improving the effect of blowing and heat dissipation.

[0027] The top of the integrated frame 2 is equipped with a servo motor 5, which plays a role of power drive. The inside of the integrated frame 2 is movably equipped with a threaded rod 6, and the output end of the servo motor 5 is connected to the threaded rod 6. The surface of the threaded rod 6 is covered with a threaded sleeve 7, and the threaded sleeve 7 is threadedly connected to the threaded rod 6, and the threaded sleeve 7 is slidably connected to the integrated frame 2, and the threaded sleeve 7 is connected to the integrated board 3;

[0028] The side walls of the protection frame 4 are all equipped with sliding columns 18, and the surfaces of the sliding columns 18 are all equipped with two sets of moving blocks 17, and the moving blocks 17 are slidably connected with the sliding columns 18;

[0029] The surface of the sliding column 18 on one side of the moving block 17 is provided with a spring 19, and the spring 19 is connected to the moving block 17. A short connecting arm 21 is installed on the side wall of the moving block 17. A hinge shaft 20 is installed at one end of the short connecting arm 21 close to the moving block 17, and the short connecting arm 21 is movably connected to the moving block 17 through the hinge shaft 20.

[0030] The end of the short connecting arm 21 away from the moving block 17 is equipped with a long connecting arm 24, and the side of the long connecting arm 24 close to the short connecting arm 21 is equipped with a pin shaft 23, and the long connecting arm 24 is movably connected to the short connecting arm 21 through the pin shaft 23;

[0031] The end of the long connecting arm 24 close to the protection frame 4 is equipped with a linkage shaft 25, and the long connecting arm 24 is movably connected to the protection frame 4 through the linkage shaft 25, and the end of the long connecting arm 24 away from the protection frame 4 is equipped with a protection plate 22;

[0032] When the grid-connected cabinet body 1 is hit by a foreign object, it first hits the protective plate 22, and the foreign object drives the protective plate 22 to move, and the protective plate 22 drives the long connecting arm 24 to rotate around the linkage shaft 25, and the long connecting arm 24 drives the short connecting arm 21 to rotate through the pin shaft 23, and the short connecting arm 21 drives the moving block 17 to move on the surface of the sliding column 18 through the hinge shaft 20, and the moving block 17 squeezes the spring 19. Under the elastic support of the spring 19, the spring 19 provides a reverse force to the moving block 17 to elastically buffer and offset the impact force, so as to protect the integrated frame 2, thereby realizing convenient elastic buffering to offset the impact force and facilitating good protection of the grid-connected cabinet.

[0033] Working principle: First, connect the grid cabinet body 1 with the photovoltaic power generation system and the external circuit. When the grid cabinet is working, heat will be generated inside. The cooling fan 11 will blow air to dissipate heat inside the integrated frame 2. The blown air will be discharged from the cooling holes 26. The two groups of cooling holes 26 play the role of air intake and exhaust. The electric push rod 13 drives the push arm 14 to move. The push arm 14 drives a group of sliders 15 to slide on the surface of a group of slide rails 16. The group of sliders 15 drives a group of racks 10 to move. The racks 10 drive two groups of cooling fans 11 to move. A group of racks 10 drives the gear 8 to rotate with the movable shaft 9 as the axis. The gear 8 drives the other two groups of cooling fans 11 to move through another group of racks 10, so that multiple groups of cooling fans 11 can achieve reciprocating movement of the inside of the integrated frame 2 to dissipate heat, so as to improve its heat dissipation effect. The servo motor 5 The threaded rod 6 is driven to rotate, and the threaded rod 6 drives the threaded sleeve 7 to move up and down, and the threaded sleeve 7 drives the integrated board 3 and the cooling fan 11 to move up and down, and the cooling fan 11 moves the integrated frame 2 up and down to blow air and dissipate heat. When the grid-connected cabinet body 1 is hit by a foreign object, it first hits the protective plate 22, and the foreign object drives the protective plate 22 to move, and the protective plate 22 drives the long connecting arm 24 to rotate with the linkage shaft 25 as the axis, and the long connecting arm 24 drives the short connecting arm 21 to rotate through the pin shaft 23, and the short connecting arm 21 drives the moving block 17 to move on the surface of the sliding column 18 through the hinge shaft 20, and the moving block 17 squeezes the spring 19, and the spring 19 provides a reverse force to the moving block 17 to elastically buffer and offset the impact force, to protect the integrated frame 2, and to complete the use of the grid-connected cabinet of the solar photovoltaic power generation system.

Claims

1. A solar photovoltaic power generation system grid-connected cabinet, comprising a grid-connected cabinet body (1) and an integrated board (3), characterized in that: Two groups of integrated boards (3) are arranged inside the grid-connected cabinet body (1), and slide rails (16) are symmetrically installed on the side walls of the integrated boards (3), and sliders (15) are slidably installed on the surfaces of the slide rails (16), and racks (10) are installed on the side walls of the sliders (15), and two groups of support columns (12) are installed on the side walls of the racks (10), and cooling fans (11) are installed at one end of the support columns (12), and movable shafts (9) are installed at the center of the integrated boards (3), and the movable shafts (9) are movably connected to the integrated boards (3). The surfaces of the movable shafts (9) are all provided with gears (8), and the gears (8) and the racks (10) are meshed with each other. An electric push rod (13) is installed on one side of the integrated board (3), and a push arm (14) is installed at the output end of the electric push rod (13), and the push arm (14) is connected to a group of sliders (15). Multiple groups of protective frames (4) are installed on the outer wall of the grid-connected cabinet body (1), and two groups of integrated frames (2) are symmetrically installed on the inner wall of the grid-connected cabinet body (1), and two groups of heat dissipation holes (26) are symmetrically installed on the side wall of the grid-connected cabinet body (1).

2. A solar photovoltaic power generation system grid-connected cabinet according to claim 1, characterized in that: A servo motor (5) is installed at the top of each integrated frame (2), a threaded rod (6) is movably installed inside each integrated frame (2), and the output end of the servo motor (5) is connected to the threaded rod (6).

3. A solar photovoltaic power generation system grid-connected cabinet according to claim 2, characterized in that: The surface of the threaded rod (6) is sleeved with a threaded sleeve (7), the threaded sleeve (7) is threadedly connected to the threaded rod (6), the threaded sleeve (7) is slidably connected to the integrated frame (2), and the threaded sleeve (7) is connected to the integrated board (3).

4. A solar photovoltaic power generation system grid-connected cabinet according to claim 1, characterized in that: The side walls of the protection frame (4) are all equipped with sliding columns (18), the surfaces of the sliding columns (18) are all equipped with two groups of moving blocks (17), and the moving blocks (17) are slidably connected to the sliding columns (18).

5. A solar photovoltaic power generation system grid-connected cabinet according to claim 4, characterized in that: The surface of the sliding column (18) on one side of the moving block (17) is sleeved with a spring (19), and the spring (19) is connected to the moving block (17).

6. A solar photovoltaic power generation system grid-connected cabinet according to claim 4, characterized in that: A short connecting arm (21) is installed on the side wall of the moving block (17), and a hinge shaft (20) is installed at one end of the short connecting arm (21) close to the moving block (17), and the short connecting arm (21) is movably connected to the moving block (17) through the hinge shaft (20).

7. A solar photovoltaic power generation system grid-connected cabinet according to claim 6, characterized in that: The end of the short connecting arm (21) away from the moving block (17) is equipped with a long connecting arm (24), and the side of the long connecting arm (24) close to the short connecting arm (21) is equipped with a pin shaft (23), and the long connecting arm (24) is movably connected to the short connecting arm (21) through the pin shaft (23).

8. A solar photovoltaic power generation system grid-connected cabinet according to claim 7, characterized in that: The end of the long connecting arm (24) close to the protective frame (4) is equipped with a linkage shaft (25), and the long connecting arm (24) is movably connected to the protective frame (4) through the linkage shaft (25), and the end of the long connecting arm (24) away from the protective frame (4) is equipped with a protective plate (22).

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