Installation structure of photovoltaic circuit breaker in power distribution cabinet

Abstract

This invention provides an installation structure for a photovoltaic circuit breaker in a distribution cabinet, relating to the field of circuit breaker installation technology. It includes a guide rail, on which the photovoltaic circuit breaker body is slidably mounted. A mounting bracket is fixedly installed in the inner wall of the photovoltaic circuit breaker body, and a dovetail mounting groove is formed on the side wall of the mounting bracket. The guide rail is adapted to the dovetail mounting groove, and a sliding groove is formed in the inner wall of the dovetail mounting groove. A sliding strip is slidably mounted inside the photovoltaic circuit breaker body, and side strips are symmetrically fixedly mounted on the side wall of the sliding strip. This device eliminates the need for complex tools, significantly shortening operation time, reducing the workload of maintenance personnel, and improving maintenance efficiency compared to traditional bolt fixing methods. Furthermore, the device utilizes the elastic force generated by the torsion spring to complete loading and unloading, forming an elastic snap-fit ​​structure. During the operation of the smart grid distribution cabinet, it effectively buffers the impact of vibration and external force, ensuring a stable connection of the photovoltaic circuit breaker, avoiding circuit faults caused by loosening, and ensuring the safe and stable operation of the power system.

Description

Technical Field

[0001] This invention belongs to the field of circuit breaker installation technology, and more specifically, relates to an installation structure for a photovoltaic circuit breaker in a distribution cabinet. Background Technology

[0002] As a key hub between photovoltaic power generation systems and smart grids, distribution cabinets undertake the core functions of power collection, distribution, and protection. Photovoltaic circuit breakers, as crucial components within distribution cabinets to ensure the safe operation of circuits, are of paramount importance. During normal operation of the power system, photovoltaic circuit breakers must precisely control the opening and closing of circuits to ensure stable power transmission. When abnormal conditions such as overload or short circuit occur, they must act quickly to promptly disconnect faulty circuits, prevent accidents from escalating, and protect equipment and personnel safety.

[0003] 1. Traditional photovoltaic circuit breakers and smart grid distribution cabinet rails are mostly installed using bolt fixing. The fixed installation structure is difficult to adapt to the complex and ever-changing internal layout of smart grid distribution cabinets. The positioning needs to be repeatedly adjusted during the installation process, which not only consumes a lot of time, but also leads to low space utilization of smart grid distribution cabinets. In addition, the bolt fixing operation is cumbersome, and disassembly is required with tools such as wrenches during maintenance, which greatly increases the workload of maintenance personnel and extends the maintenance cycle.

[0004] 2. After long-term use, the mounting slots of existing smart grid distribution cabinets are prone to accumulating impurities. The accumulation of impurities in the mounting slots will affect the tight connection between the circuit breaker and the mounting structure. In the existing technology, cleaning impurities often requires manual and meticulous treatment of each installation point, which is costly and inefficient. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an installation structure for a photovoltaic circuit breaker in a power distribution cabinet.

[0006] An installation structure for a photovoltaic circuit breaker in a power distribution cabinet includes a guide rail, on which a photovoltaic circuit breaker body is slidably mounted. A mounting bracket is fixedly mounted in the inner wall of the photovoltaic circuit breaker body. A dovetail mounting groove is provided on the side wall of the mounting bracket. The guide rail is adapted to the dovetail mounting groove. A sliding groove is provided in the inner wall of the dovetail mounting groove.

[0007] The photovoltaic circuit breaker body has a sliding strip slidably installed inside. Side strips are symmetrically fixedly installed on the side walls of the sliding strip. Fixing blocks are symmetrically fixedly installed on the rear side strips. A first convex ball is fixedly installed on each of the two fixing blocks. A side block is fixedly installed on the end of the fixing block away from the two side strips. A first inner groove is opened on the opposite ends of the two side blocks. An installation strip is slidably installed inside the sliding groove. A chip removal groove is opened on the side wall of the installation strip. A collection groove is opened in the inner wall of the chip removal groove. A through groove is opened through the inside of the installation strip. A second inner groove is opened on both side walls of the installation strip. A fixing frame is fixedly installed on the side wall of the mounting frame. A rotating shaft is symmetrically rotatably installed inside the fixing frame. A rotating rod is rotatably installed on each of the two rotating shafts. Torsion springs are fixedly installed at the upper and lower ends of the two rotating rods.

[0008] Preferably, the guide rail has four mounting slots, each of which has a sliding bracket slidably mounted inside, and each of the four sliding brackets has a fastening bolt threaded inside. The guide rail also has slots evenly spaced.

[0009] Preferably, connecting blocks are symmetrically fixedly installed in the inner wall of the fixing frame, and sliding rods are slidably installed through the two connecting blocks. Nuts are threaded on both ends of the connecting blocks.

[0010] Preferably, the two rotating rods are slidably installed at both ends in the two first inner grooves and the two second inner grooves, and the ends of the two sets of torsion springs away from the two rotating rods are fixedly connected to the fixing frame.

[0011] Preferably, rectangular slots are symmetrically formed on the side wall of the photovoltaic circuit breaker body, and heat dissipation vents are formed in the inner walls of the two rectangular slots.

[0012] Preferably, each of the rectangular grooves has a strip groove on its opposite ends, and a sliding column is fixedly installed at each of the four corners of the inner wall of the two rectangular grooves.

[0013] Preferably, a screw is fixedly installed on both sets of sliding columns, and a slip ring is slidably installed on both sets of sliding columns.

[0014] Preferably, springs are fixedly installed on the sidewalls of both sets of slip rings, and the ends of the springs away from the two sets of slip rings are respectively fixedly connected to the inner walls of the two rectangular grooves.

[0015] Preferably, both sets of screws are threaded with threaded rings, and both rectangular grooves are fitted with dustproof nets. The two dustproof nets are respectively sleeved on the two sets of sliding columns and kept in close contact with the two sets of sliding rings.

[0016] Preferably, a fixing strip is fixedly installed on each of the two dustproof nets at their opposite ends, and the two fixing strips are slidably installed in the two strip grooves respectively. A second convex ball is fixedly installed at equal intervals on the side wall of each of the two fixing strips, and the two sets of second convex balls are located on the same horizontal line as the two first convex balls respectively.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this invention, a guide rail, a slot, a photovoltaic circuit breaker body, side bars, a fixing block, a mounting strip, a fixing frame, rotating rods, and torsion springs are provided. The movement of the two side bars causes the fixing block to move accordingly. At this time, the two side blocks move with the fixing block. The two rotating rods, under force, rotate around the two fixing frames as their central axes. Simultaneously, the two sets of torsion springs twist to generate elastic force. The opposite ends of the two rotating rods then drive the mounting strip to slide away from the guide rail. The mounting frame on the photovoltaic circuit breaker body can then be slidably inserted into the guide rail. Once slid to the installation position, the two side bars are released. The two sets of torsion springs can restore their elasticity to drive the two rotating rods to reset. At this time, the installation strip will be inserted into the slot on the guide rail to complete the installation. Conversely, disassembly can be completed. This device does not require complicated tools. Compared with the traditional bolt fixing method, it significantly shortens the operation time, reduces the workload of maintenance personnel, and improves maintenance efficiency. Moreover, the device completes the installation and disassembly through the elastic force generated by the torsion spring, forming an elastic snap-fit ​​structure. During the operation of the smart grid distribution cabinet, it effectively buffers the impact of vibration and external force, ensures the photovoltaic circuit breaker is firmly connected, avoids circuit failure caused by loosening, and ensures the safe and stable operation of the power system.

[0019] In this invention, a slot, a sliding groove, an installation strip, a chip removal groove, a collection groove, and a torsion spring are provided. During installation, the installation strip is inserted into the sliding groove and the slot due to the elastic force of the torsion spring. At this time, the chip removal groove on the insertion end of the installation strip can clean the accumulated impurities in the slot, preventing impurities from affecting the tight connection between the photovoltaic circuit breaker and the installation structure, preventing problems such as poor contact and circuit failure caused by impurities, ensuring stable power transmission, and improving the safety and reliability of equipment operation. Moreover, under the action of inertia, impurities will be collected into the collection groove through the chip removal groove, eliminating the need for manual cleaning of each installation point. Maintenance personnel only need to periodically clean the collection groove for collecting impurities, which greatly reduces the cleaning workload, reduces maintenance time costs, and improves maintenance efficiency.

[0020] In this invention, by providing a fixing block, an installation strip, a through groove, a second inner groove, a rotating rod, a connecting block, and a sliding rod, the sliding rod can be pulled out from the two connecting blocks and the through groove. At this time, pushing the fixing block towards the installation strip will cause the two rotating rods to rotate. When the two rotating rods rotate to the opposite ends and separate from the second inner groove, the installation strip can be disassembled. This makes the installation strip easier to install and remove during use, ensuring that impurities can be processed in a timely and undamaged manner after accumulation, and avoiding mechanical wear or electrical failures caused by long-term retention of impurities.

[0021] In this invention, a photovoltaic circuit breaker body, side strips, a fixing block, a first convex ball, a rectangular groove, a strip groove, a sliding column, a spring, a dustproof net, a fixing strip, and second convex balls are provided. During operation, the heat generated inside the photovoltaic circuit breaker body is discharged through the heat dissipation vents, while external dust is blocked and adsorbed by the dustproof net. Each time the side strip is disassembled and pushed, the side strip will move the fixing block and the first convex ball accordingly. At this time, the first convex ball will contact multiple second convex balls on the fixing strip one by one. When in contact, the first convex ball will squeeze the second convex ball. The force on the second convex ball will cause the fixing strip to slide inward in the strip groove. The dustproof net will slide inward in the rectangular groove. At this time, the dustproof net will squeeze the slip ring to slide on the sliding column, and the spring will be compressed accordingly. When the first convex ball and the second convex ball separate, the spring will restore its deformation and drive the dustproof net to reset. Therefore, the dustproof net will shake every time the photovoltaic circuit breaker body is disassembled, shaking off the dust accumulated on the dustproof net. This device combines the disassembly operation of the photovoltaic circuit breaker body with the dust cleaning process of the dustproof net, realizing the optimization of the equipment maintenance process. Maintenance personnel can automatically complete the cleaning of the dustproof net while disassembling the equipment, simplifying the maintenance steps and improving the smoothness and efficiency of the overall maintenance.

[0022] In this invention, by providing a guide rail, mounting groove, slide, and fastening bolts, the slide can be moved inside the mounting groove first. After the slide is moved to a suitable installation position, the guide rail can be fitted into the inner wall of the smart grid distribution cabinet. Then, the guide rail is fixed by rotating the fastening bolts. This allows the device to be accurately positioned according to the complex layout inside the smart grid distribution cabinet, solving the problem of poor adaptability of traditional fixed installation structures and greatly improving installation efficiency and space utilization of the smart grid distribution cabinet. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the guide rail connection structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the mounting bracket connection structure of the present invention;

[0026] Figure 4This is a schematic diagram of the exploded structure of the slider connection of the present invention;

[0027] Figure 5 This is a schematic diagram of the exploded structure of the side block connection of the present invention;

[0028] Figure 6 This is a schematic diagram of the exploded structure of the rotating rod connection of the present invention;

[0029] Figure 7 This is a schematic diagram of the exploded structure of the nut connection of the present invention;

[0030] Figure 8 This is a schematic diagram of the mounting strip structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the exploded structure of the dustproof net connection of the present invention;

[0032] Figure 10 This is the present invention. Figure 5 Enlarged structural diagram at point A in the middle;

[0033] Figure 11 This is the present invention. Figure 9 Enlarged structural diagram at point B.

[0034] In the figure, the correspondence between the component names and the attached drawing numbers is as follows: 11. Guide rail; 12. Mounting groove; 13. Slide carriage; 14. Fastening bolt; 15. Slot; 16. Photovoltaic circuit breaker body; 17. Mounting bracket; 18. Dovetail mounting groove; 19. Slide groove; 21. Slide bar; 22. Side bar; 23. Fixing block; 24. First convex ball; 25. Side block; 26. First inner groove; 27. Mounting strip; 28. Chip removal groove; 29. Collection trough; 31. Through trough; 32. Second inner trough; 33. Fixing frame; 34. Rotating shaft; 35. Rotating rod; 36. Torsion spring; 37. Connecting block; 38. Slide rod; 39. Nut; 41. Rectangular groove; 42. Strip groove; 43. Heat dissipation vent; 44. Sliding column; 45. Screw; 46. Slip ring; 47. Spring; 48. Threaded ring; 51. Dustproof net; 52. Fixing strip; 53. Second convex ball. Detailed Implementation

[0035] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0036] Please see Figures 1-11This invention provides an installation structure for a photovoltaic circuit breaker in a power distribution cabinet, including a guide rail 11, on which a photovoltaic circuit breaker body 16 is slidably mounted. A mounting bracket 17 is fixedly mounted on the inner wall of the photovoltaic circuit breaker body 16. A dovetail mounting groove 18 is formed on the side wall of the mounting bracket 17. The guide rail 11 is adapted to the dovetail mounting groove 18. A sliding groove 19 is formed on the inner wall of the dovetail mounting groove 18. A slide bar 21 is slidably mounted inside the photovoltaic circuit breaker body 16. Side bars 22 are symmetrically fixedly mounted on the side wall of the slide bar 21. Fixing blocks 23 are symmetrically fixedly mounted on the rear side bars 22. A first convex ball 24 is fixedly mounted on each of the two fixing blocks 23. A side block 25 is fixedly mounted on the end of the fixing block 23 away from the two side bars 22. Each of the opposite ends of the two side blocks 25 has a first convex ball 24. The system includes a first inner groove 26, a sliding mounting strip 27, a chip removal groove 28 on the side wall of the mounting strip 27, a collection groove 29 in the inner wall of the chip removal groove 28, a through groove 31 inside the mounting strip 27, and a second inner groove 32 on both side walls of the mounting strip 27. A fixing frame 33 is fixedly mounted on the side wall of the mounting bracket 17. A rotating shaft 34 is symmetrically mounted inside the fixing frame 33, and a rotating rod 35 is rotatably mounted on each of the two rotating shafts 34. Torsion springs 36 are fixedly mounted at both ends of the two rotating rods 35. In use, the sliding bracket 13 can be moved inside the mounting groove 12 to a suitable installation position. Then, the guide rail 11 can be fitted into the inner wall of the smart grid distribution cabinet, and the installation can be completed by rotating the fastening bolt 14. The fixing of the guide rail 11 allows the device to be precisely positioned according to the complex internal layout of the smart grid distribution cabinet, solving the problem of poor adaptability of traditional fixed installation structures and greatly improving installation efficiency and space utilization of the smart grid distribution cabinet. After the guide rail 11 is fixed, push the two side bars 22 with two fingers in the direction of the guide rail 11. The movement of the two side bars 22 will drive the fixing block 23 to move accordingly. At this time, the two side blocks 25 will move with the fixing block 23. After being subjected to force, the two rotating rods 35 will rotate around the two fixing brackets 33 as the central axis. At the same time, the two sets of torsion springs 36 will twist and generate elastic force. At this time, the opposite ends of the two rotating rods 35 will drive the mounting strip 27 to slide away from the guide rail 11. Then the photovoltaic circuit breaker body 1 can be installed. The mounting bracket 17 on the 6 slides into the guide rail 11. When it slides to the installation position, the two side bars 22 are released, and the two sets of torsion springs 36 restore their elasticity, which drives the two rotating rods 35 to reset. At this time, the mounting strip 27 will be inserted into the slot 15 on the guide rail 11 to complete the installation. Conversely, it can be disassembled. This equipment does not require complicated tools. Compared with the traditional bolt fixing method, it significantly shortens the operation time, reduces the workload of maintenance personnel, and improves maintenance efficiency. Moreover, the equipment completes the loading and unloading through the elasticity generated by the torsion spring 36, forming an elastic snap-fit ​​structure. During the operation of the smart grid distribution cabinet, it effectively buffers the impact of vibration and external impact, ensures the stable connection of the photovoltaic circuit breaker, avoids circuit failure caused by loosening, and ensures the safe and stable operation of the power system.During installation, the mounting strip 27, under the influence of the torsion spring 36, will insert into the slide groove 19 and the slot 15. At this time, the chip removal groove 28 opened on the insertion end of the mounting strip 27 can clean the accumulated impurities in the slot 15, preventing impurities from affecting the tight connection between the photovoltaic circuit breaker and the installation structure, preventing problems such as poor contact and circuit failure caused by impurities, ensuring stable power transmission, and improving the safety and reliability of equipment operation. Moreover, under the action of inertia, the impurities will be collected into the collection groove 29 through the drainage of the chip removal groove 28. There is no need for manual cleaning of each installation point. Maintenance personnel only need to periodically clean the collection groove 29 for collecting impurities, which greatly reduces the cleaning workload, reduces maintenance time costs, and improves maintenance efficiency.

[0037] Four mounting slots 12 are provided on the guide rail 11. Each of the four mounting slots 12 has a sliding carriage 13, and each of the four sliding carriages 13 has a threaded fastening bolt 14. The guide rail 11 has evenly spaced slots 15. Connecting blocks 37 are symmetrically fixed in the inner wall of the fixing frame 33. Sliding rods 38 are slidably installed through the two connecting blocks 37. Nuts 39 are threaded on both ends of the connecting blocks 37. After the photovoltaic circuit breaker body 16 is removed, the two nuts 39 can be unscrewed from the two connecting blocks 37 respectively. Then, the sliding rods 38 can be pulled out from the two connecting blocks 37 and the through slots 31. At this time, the two rotating rods 35 of the fixing block 23 will rotate when pushed towards the mounting strip 27. When the two rotating rods 35 rotate to the opposite end and separate from the second inner slot 32, the mounting strip 27 can be disassembled. This makes the disassembly and assembly of the mounting strip 27 more convenient when the equipment is in use, ensuring that impurities can be dealt with in a timely and undamaged manner after accumulation, avoiding mechanical wear or electrical failures caused by long-term retention of impurities.

[0038] Two rotating rods 35 are slidably installed at both ends in two first inner grooves 26 and two second inner grooves 32. The ends of two sets of torsion springs 36 away from the two rotating rods 35 are fixedly connected to the fixing frame 33. Rectangular grooves 41 are symmetrically opened on the side wall of the photovoltaic circuit breaker body 16. Heat dissipation vents 43 are opened in the inner wall of the two rectangular grooves 41. Strip grooves 42 are opened on the opposite ends of the inner wall of the rectangular grooves 41. Sliding columns 44 are fixedly installed at the four corners of the inner wall of the two rectangular grooves 41. Screws 45 are fixedly installed on the two sets of sliding columns 44. Slip rings 46 are slidably installed on the two sets of sliding columns 44. Springs 47 are fixedly installed on the side wall of the two sets of slip rings 46. The ends of the two sets of springs 47 away from the two sets of slip rings 46 are fixedly connected to the fixing frame 33. Each set of screws 45 is fixedly connected to the inner wall of two rectangular grooves 41. Threaded rings 48 are threaded onto both sets of screws 45. Dustproof nets 51 are installed in each of the two rectangular grooves 41. The two dustproof nets 51 are respectively fitted onto two sets of sliding columns 44 and maintain contact with two sets of sliding rings 46. Fixing strips 52 are fixedly installed on the opposite ends of the two dustproof nets 51. The two fixing strips 52 are slidably installed in the two strip grooves 42. Second convex balls 53 are fixedly installed at equal intervals on the side walls of the two fixing strips 52. The two sets of second convex balls 53 are located on the same horizontal line as the two first convex balls 24. In use, the dustproof nets 51 can be fitted onto the sliding columns 44, at which point the dustproof nets 51 will contact the sliding rings 46. After placement, the threaded ring 48 can be screwed to the bottom on the screw 45 to complete the fixation of the dustproof net 51. During operation, the heat generated inside the photovoltaic circuit breaker body 16 will be discharged through the heat dissipation port 43, while external dust will be blocked by the dustproof net 51 and adsorbed on the dustproof net 51. Each time the side strip 22 is disassembled and pushed, the side strip 22 will drive the fixing block 23 and the first convex ball 24 to move accordingly. At this time, the first convex ball 24 will contact the multiple second convex balls 53 on the fixing strip 52 one by one. When in contact, the first convex ball 24 will squeeze the second convex ball 53. At this time, the second convex ball 53 will be forced to move the fixing strip 52 inward in the strip groove 42. The fixing strip 52 will drive the dustproof net 51 in the rectangular groove. When the dustproof net 51 slides inward, it will squeeze the slip ring 46 onto the sliding column 44, and the spring 47 will be compressed accordingly. When the first convex ball 24 separates from the second convex ball 53, the spring 47 will restore its deformation and drive the dustproof net 51 to reset. Therefore, the dustproof net 51 will shake each time the photovoltaic circuit breaker body 16 is disassembled, shaking off the dust accumulated on the dustproof net 51. This device combines the disassembly operation of the photovoltaic circuit breaker body 16 with the dust cleaning process of the dustproof net 51, realizing the optimization of the equipment maintenance process. While disassembling the equipment, the maintenance personnel automatically complete the cleaning of the dustproof net 51, simplifying the maintenance steps and improving the smoothness and efficiency of the overall maintenance.

[0039] Working principle:

[0040] The first step is to move the slide 13 inside the mounting slot 12. After moving the slide 13 to the appropriate installation position, the guide rail 11 can be fitted into the inner wall of the smart grid distribution cabinet. Then, the guide rail 11 is fixed by rotating the fastening bolt 14. This allows the device to be accurately positioned according to the complex layout inside the smart grid distribution cabinet, solving the problem of poor adaptability of traditional fixed installation structures and greatly improving installation efficiency and space utilization of the smart grid distribution cabinet. After the guide rail 11 is fixed, use two fingers to push the two side bars 22 in the direction of the guide rail 11. The movement of the two side bars 22 will drive the fixing block 23 to move accordingly. At this time, the two side blocks 25 will move with the fixing block 23. After being subjected to force, the two rotating rods 35 will rotate around the two fixing brackets 33 as the central axis. At the same time, the two sets of torsion springs 36 will twist and generate elastic force. At this time, the two rotating rods 35 will rotate. The 5 opposite ends will drive the mounting strip 27 to slide away from the guide rail 11. Then, the mounting bracket 17 on the photovoltaic circuit breaker body 16 can be slid into the guide rail 11. When it slides to the installation position, the two side strips 22 are released, and the two sets of torsion springs 36 restore their elasticity, which can drive the two rotating rods 35 to reset. At this time, the mounting strip 27 will be inserted into the slot 15 on the guide rail 11 to complete the installation. Conversely, it can be disassembled. This device does not require complicated tools. Compared with the traditional bolt fixing method, it significantly shortens the operation time, reduces the workload of maintenance personnel, and improves maintenance efficiency. Moreover, the device completes the loading and unloading through the elasticity generated by the torsion spring 36, forming an elastic snap-fit ​​structure. During the operation of the smart grid distribution cabinet, it effectively buffers the impact of vibration and external force, ensures the photovoltaic circuit breaker is firmly connected, avoids circuit failure caused by loosening, and ensures the safe and stable operation of the power system.

[0041] In the second step, during installation, the mounting strip 27, under the influence of the torsion spring 36, will be inserted into the slide groove 19 and the slot 15. At this time, the chip removal groove 28 opened on the insertion end of the mounting strip 27 can clean the accumulated impurities in the slot 15, preventing impurities from affecting the tight connection between the photovoltaic circuit breaker and the installation structure, preventing problems such as poor contact and circuit failure caused by impurities, ensuring stable power transmission, and improving the safety and reliability of equipment operation. Moreover, under the action of inertia, the impurities will be collected into the collection groove 29 through the drainage of the chip removal groove 28. There is no need for manual cleaning of each installation point. Maintenance personnel only need to periodically clean the collection groove 29 for collecting impurities, which greatly reduces the cleaning workload, reduces maintenance time costs, and improves maintenance efficiency.

[0042] Third, after the photovoltaic circuit breaker body 16 is removed, the two nuts 39 can be unscrewed from the two connecting blocks 37 respectively. Then, the slide rod 38 can be pulled out from the two connecting blocks 37 and the through groove 31. At this time, push the fixing block 23 towards the direction of the mounting strip 27 and the two rotating rods 35 will rotate. When the two rotating rods 35 rotate to the opposite ends and separate from the second inner groove 32, the disassembly of the mounting strip 27 can be completed. This makes the disassembly and assembly of the mounting strip 27 more convenient when the equipment is in use, and ensures that impurities can be dealt with in a timely and undamaged manner after accumulation, avoiding mechanical wear or electrical failure caused by long-term retention of impurities.

[0043] Fourthly, during use, the dustproof net 51 can be fitted onto the sliding column 44. At this time, the dustproof net 51 will contact the slip ring 46. After placement, the threaded ring 48 can be tightened to the end on the screw 45 to complete the fixation of the dustproof net 51. During operation, the heat generated inside the photovoltaic circuit breaker body 16 will be discharged through the heat dissipation port 43, while external dust will be blocked by the dustproof net 51 and adsorbed on the dustproof net 51. Each time the side strip 22 is disassembled and pushed, the side strip 22 will drive the fixing block 23 and the first convex ball 24 to move accordingly. At this time, the first convex ball 24 will contact the multiple second convex balls 53 on the fixing strip 52 one by one. When in contact, the first convex ball 24 will squeeze the second convex ball 53. At this time, the second convex ball 53 will be forced to move the fixing strip 52 inward in the strip groove 42. The sliding action of the fixed bar 52 causes the dustproof net 51 to slide inward in the rectangular groove 41. At this time, the dustproof net 51 will squeeze the slip ring 46 to slide on the sliding column 44, and the spring 47 will be compressed accordingly. When the first convex ball 24 and the second convex ball 53 separate, the spring 47 will restore its deformation and drive the dustproof net 51 to reset. Therefore, the dustproof net 51 will shake every time the photovoltaic circuit breaker body 16 is disassembled, shaking off the dust accumulated on the dustproof net 51. This device combines the disassembly operation of the photovoltaic circuit breaker body 16 with the dust cleaning process of the dustproof net 51, realizing the optimization of the equipment maintenance process. While disassembling the equipment, the maintenance personnel automatically complete the cleaning of the dustproof net 51, simplifying the maintenance steps and improving the smoothness and efficiency of the overall maintenance.

[0044] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An installation structure for a photovoltaic circuit breaker in a distribution cabinet, comprising a guide rail (11), wherein a photovoltaic circuit breaker body (16) is slidably mounted on the guide rail (11), characterized in that: A mounting bracket (17) is fixedly installed in the inner wall of the photovoltaic circuit breaker body (16). A dovetail mounting groove (18) is provided on the side wall of the mounting bracket (17). The guide rail (11) is adapted to the dovetail mounting groove (18). A sliding groove (19) is provided in the inner wall of the dovetail mounting groove (18). The photovoltaic circuit breaker body (16) has a sliding strip (21) slidably installed inside. Side strips (22) are symmetrically fixedly installed on the side wall of the sliding strip (21). Fixing blocks (23) are symmetrically fixedly installed on the side strips (22) located at the rear. A first convex ball (24) is fixedly installed on each of the two fixing blocks (23). A side block (25) is fixedly installed on the end of the fixing block (23) away from the two side strips (22). An installation strip (27) is slidably installed inside the slide groove (19). A chip removal groove (28) is provided on the side wall of the mounting strip (27), and a collection groove (29) is provided in the inner wall of the chip removal groove (28). A through groove (31) is provided through the inside of the mounting strip (27). A fixing frame (33) is fixedly installed on the side wall of the mounting frame (17). A rotating shaft (34) is symmetrically rotated inside the fixing frame (33). A rotating rod (35) is rotatably installed on each of the two rotating shafts (34). A torsion spring (36) is fixedly installed at both the upper and lower ends of the two rotating rods (35). Each of the two side blocks (25) has a first inner groove (26) on its opposite ends, and each of the two side walls of the mounting strip (27) has a second inner groove (32). The two rotating rods (35) are slidably installed in the two first inner grooves (26) and the two second inner grooves (32). The ends of the two sets of torsion springs (36) away from the two rotating rods (35) are fixedly connected to the fixing frame (33). The photovoltaic circuit breaker body (16) has symmetrical rectangular grooves (41) on its side wall. The inner walls of the two rectangular grooves (41) have heat dissipation vents (43). The four corners of the inner walls of the two rectangular grooves (41) are fixedly installed with sliding columns (44). Both sets of screws (45) are fixedly installed, and threaded rings (48) are threaded on both sets of screws (45). Dustproof nets (51) are installed in both rectangular grooves (41). The two dustproof nets (51) are respectively sleeved on the two sets of sliding columns (44) and kept in close contact with the two sets of sliding rings (46). Fixing strips (52) are fixedly installed on the opposite ends of the two dustproof nets (51). The two fixing strips (52) are slidably installed in the two strip grooves (42). Second convex balls (53) are fixedly installed at equal intervals on the side walls of the two fixing strips (52). The two sets of second convex balls (53) are located on the same horizontal line as the two first convex balls (24).

2. The installation structure of a photovoltaic circuit breaker in a power distribution cabinet according to claim 1, wherein The guide rail (11) has four mounting slots (12), and a slide (13) is slidably installed inside each of the four mounting slots (12). Among them, the four slides (13) are threaded with fastening bolts (14), and the guide rail (11) is provided with slots (15) evenly spaced.

3. The mounting structure of a photovoltaic circuit breaker in a power distribution cabinet according to claim 1, wherein Connecting blocks (37) are symmetrically fixedly installed in the inner wall of the fixing frame (33); Among them, a sliding rod (38) is slidably installed inside the two connecting blocks (37), and a nut (39) is threaded on both ends of the connecting blocks (37).

4. The mounting structure of a photovoltaic circuit breaker in an electrical distribution cabinet according to claim 1, wherein The rectangular groove (41) has strip grooves (42) on opposite ends of its inner wall.

5. The mounting structure of a photovoltaic circuit breaker in an electrical distribution cabinet according to claim 1, wherein Slip rings (46) are slidably installed on both sets of sliding columns (44).

6. The mounting structure of a photovoltaic circuit breaker in an electrical distribution cabinet according to claim 5, wherein Springs (47) are fixedly installed on the side walls of both sets of slip rings (46); Among them, the ends of the two sets of springs (47) away from the two sets of slip rings (46) are respectively fixedly connected to the inner walls of the two rectangular grooves (41).

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