A smart circuit breaker for photovoltaic applications

Abstract

This invention provides a smart circuit breaker for photovoltaic applications, relating to the field of circuit design. The smart circuit breaker includes a housing with a cover plate fixedly connected to one side. Through holes are provided at both ends of the housing, and connection modules are installed at both ends inside the housing. A linkage module is installed at the upper end of the housing interior. In operation, starting the motor drives a second rotating disk, which in turn moves a toggle block. After the toggle block contacts a fixed post, it causes the fixed post to rotate in a circular motion, which in turn rotates the first rotating disk. This, in turn, causes the handle to rotate the rotating block counterclockwise via a linkage. The rotation of the rotating block then causes the lower contact piece to rotate around the lower end of the mounting plate via a linkage ring, causing the lower contact piece to contact the upper contact piece, indicating a closed state. A wireless communication device and a microcontroller are installed inside the housing, allowing users to remotely close the circuit breaker during actual use, making it more convenient.

Description

Technical Field

[0001] This invention relates to the field of circuits, specifically to a smart circuit breaker for photovoltaic applications. Background Technology

[0002] Photovoltaic power generation, based on the photovoltaic effect, directly converts solar energy into electrical energy using solar cells. Whether used independently or connected to the grid, a photovoltaic power generation system mainly consists of three parts: solar panels (modules), a controller, and an inverter. Solar photovoltaic power generation, as a green new energy source, is convenient to obtain resources and is safe and pollution-free, making it an inevitable trend in new energy development. While developing new energy sources, it is also necessary to consider how to manage them through a unified intelligent platform. The system management equipment layer relies on primary equipment, data acquisition devices, control terminals, and remote communication equipment. Photovoltaic power generation also requires the use of corresponding circuit breakers, making the photovoltaic circuit breaker one of the key pieces of equipment in the system. In the traditional installation process of circuit breakers, workers first need to carefully align and insert the wires into the connection slots of the circuit breaker, then use screws to fix the wires to the connection slots, performing multiple tightening operations during the installation process. This not only increases the complexity of the installation but also greatly prolongs the installation time, resulting in low work efficiency. Summary of the Invention

[0003] 1. Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a smart circuit breaker for photovoltaic applications. This solves the problem that in the traditional installation process of circuit breakers, workers first need to carefully align and insert the wires into the connection slots of the circuit breaker, and then use screws to fix the wires to the connection slots, requiring multiple tightening operations during the installation process. This not only increases the complexity of the installation but also greatly prolongs the installation time, resulting in low work efficiency.

[0005] 2. Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A smart circuit breaker for photovoltaic applications includes a housing, a cover plate fixedly connected to one side of the housing, through holes at both ends of the housing, connection modules at both ends of the housing interior, and a linkage module at the upper end of the housing interior.

[0008] An arc-extinguishing grid is fixedly installed on one side of the housing, and an mounting plate is fixedly installed on one side of the arc-extinguishing grid. A lower contact plate is movably connected to the lower end of the mounting plate, and a connecting wire is fixedly connected inside the lower contact plate. An upper contact plate corresponding to the lower contact plate is fixedly connected to the side of the arc-extinguishing grid away from the mounting plate.

[0009] Through the above technical solution, by setting up a connection module, during use, the wire is inserted into the mounting slot, and after the wire contacts the L-shaped top bracket, it is continued to be inserted. This causes the L-shaped top bracket to move towards the first spring, at which point the first spring is compressed. Once the L-shaped top bracket is no longer in contact with the top block, the top block and the lever plate, under the action of the second spring, move towards the mounting slot until the top block contacts and clamps the wire, thus completing the wire connection. At this point, the top block abuts against the other end of the L-shaped top bracket. During disassembly, moving the lever plate towards the fixed plate causes the top block and the lever plate to move synchronously. Continue moving the top block until it no longer contacts the top block. At this point, the wire can be pulled out. Continue moving the top block until it no longer contacts the L-shaped top bracket. At this point, the first spring is no longer under force. Then, the L-shaped top bracket will move towards the top block under the action of the spring until it contacts the top block. This will keep the top block in its initial position for easy use next time. In actual use, this device is easy to connect and does not require screws to fix the wires, which makes the circuit breaker installation process simpler, saves installation time, and improves the efficiency of circuit breaker installation. It also makes it easy to disassemble the circuit breaker, thus facilitating the maintenance or replacement of the circuit breaker.

[0010] Furthermore, both of the connecting modules include a mounting block and a fixing plate fixedly connected to the housing. A clearance groove is provided on one side of the mounting block, and a mounting groove is provided inside the mounting block. A first spring is fixedly connected to one end of the mounting groove, and an L-shaped top bracket is fixedly connected to one end of the first spring. The L-shaped top bracket is slidably connected to the inner wall of the mounting groove.

[0011] With the above technical solution, when in use, the wire is inserted into the mounting groove until the wire contacts the L-shaped top frame. Then, the wire is moved to move the L-shaped top frame, which in turn compresses the first spring to store energy.

[0012] Furthermore, a guide post is slidably connected inside the fixed plate. One end of the guide post is fixedly connected to a lever plate. One end of the lever plate passes through a through hole and extends to the outside of the housing. A top block is fixedly connected to the surface of the lever plate. The top block is slidably connected to the inner wall of the clearance groove and abuts against the L-shaped top frame. A second spring is sleeved on the outside of the guide post. The second spring is located between the lever plate and the fixed plate.

[0013] With the above technical solution, when the L-shaped top bracket moves to a position where it is no longer in contact with the top block, the second spring will drive the top block to move into the mounting groove, thereby causing the top block to clamp the wire.

[0014] Furthermore, a connecting block is fixedly connected to one side surface of the mounting block, a connecting groove is provided inside the connecting block, and a bolt is threadedly connected to the position corresponding to the connecting groove inside the connecting block;

[0015] By using the above technical solution, rotating the bolt during use causes it to move into the connecting groove, which can clamp the spiral coil or connecting wire inside the connecting groove, thereby preventing loosening during use and affecting the normal operation of the circuit breaker.

[0016] Furthermore, the linkage module includes a placement plate fixedly connected to the housing, an installation tube fixedly connected to the upper end of the placement plate, a threaded coil sleeved on the outside of the installation tube, one end of the threaded coil and one end of the connecting wire respectively extending into the connecting grooves opened inside the connecting blocks of the two connecting modules and contacting the inner wall of the connecting grooves, a third spring is provided at the lower end of the installation tube, a moving block is slidably connected inside the installation tube, the lower end of the moving block abuts against the upper end of the third spring, a pin is fixedly connected to the lower end of the moving block, and a through hole corresponding to the pin is opened inside the placement plate;

[0017] With the above technical solution, if an abnormality occurs in the circuit during actual use, the current in the circuit will increase. At this time, the magnetism of the spiral coil will increase with the increase of the current, thereby overcoming the tension of the third spring and pulling the moving block downward, which in turn drives the ejector pin to move downward, so that the ejector pin contacts the rotating block, thereby driving the rotating block to rotate, so that one end of the rotating block contacts the lower contact piece, and then drives the lower contact piece to move downward, so that the lower contact piece no longer contacts the upper contact piece, thereby breaking the circuit.

[0018] Furthermore, a rotating block is rotatably connected inside the housing, a connecting ring is rotatably connected to the surface of the lower contact piece, one end of the connecting ring is rotatably connected to the lower end of one side of the rotating block, a fourth spring is sleeved on the outside of the connecting ring, a handle is rotatably connected inside the housing at a position corresponding to the rotating block, a connecting element is rotatably connected to the surface of the handle, one end of the connecting element is rotatably connected to the rotating block, a mounting ring is fixedly connected to the inner wall of the housing, a mounting post is fixedly connected to the surface of the rotating block, and a tension spring is movably connected between the mounting post and the mounting ring;

[0019] With the above technical solution, when the rotating block rotates and drives the lower contact piece to rotate, it will drive the connecting coil to move, thereby driving the rotating block to rotate further. At the same time, the fourth spring and the tension spring will synchronously restore their deformation, thereby accelerating the rotation of the rotating block, thus making the circuit breaker's circuit breaking process faster.

[0020] Furthermore, a mounting box is fixedly connected to one side surface of the housing, a motor is fixedly connected inside the mounting box, a second rotating disk is fixedly connected to the output end of the motor, a toggle block is fixedly connected to the surface of the second rotating disk, a connecting rod is fixedly connected to the surface of the handle, one end of the connecting rod passes through the housing and extends into the mounting box, a first rotating disk is fixedly connected to one end of the connecting rod, and a fixed post corresponding to the toggle block is fixedly connected to the surface of the first rotating disk;

[0021] With the above technical solution, when the motor is started, the motor drives the second rotating disk to rotate, which in turn drives the toggle block to move. After the toggle block moves and contacts the fixed column, it will drive the fixed column to make a circular motion, which in turn drives the first rotating disk to rotate, which in turn drives the handle to rotate. The rotation of the handle will drive the rotating block to rotate counterclockwise through the linkage. At this time, the rotation of the rotating block will drive the lower contact piece to rotate around the lower end of the mounting plate through the linkage ring, which will drive the lower contact piece to contact the upper contact piece. At this time, it is in the closed state. Then the motor is reversed, which drives the second rotating disk to rotate, and then the toggle block is moved away from the fixed column, so as not to affect the normal circuit breaking.

[0022] Furthermore, a placement box is fixedly connected to the housing surface at a position corresponding to the mounting box. The placement box includes a first compartment, a second compartment, and a third compartment. A wireless communication device is fixedly connected inside the first compartment, a storage battery is fixedly connected inside the second compartment, and a microcontroller is fixedly connected inside the third compartment. The storage battery, the wireless communication device, the microcontroller, and the motor are all electrically connected.

[0023] The above technical solution includes a wireless communication device and a micro controller installed inside the box, which allows users to remotely close the circuit breaker during actual use, making it more convenient to use.

[0024] 3. Beneficial effects

[0025] This invention provides a smart circuit breaker for photovoltaic applications. It has the following advantages:

[0026] 1. This invention provides a smart circuit breaker for photovoltaic applications. By incorporating a connection module, during use, a wire is inserted into the mounting slot, making contact with the L-shaped top bracket. Further insertion causes the L-shaped top bracket to move towards the first spring, compressing it. Once the L-shaped top bracket is no longer in contact with the top block, the top block and the lever plate move towards the mounting slot under the action of a second spring until the top block contacts and clamps the wire, completing the wire connection. At this point, the top block abuts against the other end of the L-shaped top bracket. During disassembly, moving the lever plate towards the fixed plate causes the top block and lever plate to move towards the fixed plate. The plate moves synchronously until the wire no longer contacts the top block. At this point, the wire can be pulled out. Continue moving the top block until it no longer contacts the L-shaped top bracket. At this point, the first spring is no longer under force. Then, the L-shaped top bracket will move towards the top block under the action of the spring until it contacts the top block, thus keeping the top block in its initial position for easy use next time. In actual use, this device is easy to connect and does not require screws to fix the wires, which simplifies the circuit breaker installation process, saves installation time, and improves the efficiency of circuit breaker installation. It also facilitates the disassembly of the circuit breaker, making it convenient for maintenance or replacement.

[0027] 2. This invention provides a smart circuit breaker for photovoltaic applications. A motor is installed inside the mounting box, with a second rotating disk at the motor's output end. A toggle block is mounted on the surface of the second rotating disk. A connecting rod is mounted on the handle surface, with a first rotating disk at one end of the connecting rod. A fixed post is mounted on the surface of the first rotating disk, corresponding to the toggle block. In use, starting the motor rotates the second rotating disk, causing the toggle block to move. After the toggle block contacts the fixed post, it causes the fixed post to rotate, which in turn rotates the first rotating disk, causing the handle to rotate. The rotation of the handle, through a linkage, causes the rotating block to rotate counter-clockwise. This rotation, through a linkage ring, causes the lower contact piece to rotate around the lower end of the mounting plate, bringing it into contact with the upper contact piece, indicating a closed state. Afterward, the motor reverses, causing the second rotating disk to rotate, which in turn moves the toggle block away from the fixed post, thus not affecting normal circuit breaking. Simultaneously, a wireless communication device and a microcontroller are installed inside the mounting box, allowing users to remotely close the circuit, making it more convenient to use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a cross-sectional view of the internal structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the mounting structure of the placement plate of the present invention;

[0031] Figure 4 This is a sectional view of the L-shaped top frame installation position according to the present invention;

[0032] Figure 5 This is a cross-sectional view of the ejector pin mounting structure of the present invention;

[0033] Figure 6 This is a partial sectional view of the motor mounting structure of the present invention;

[0034] Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle.

[0035] Among them, 1. shell; 2. cover plate;

[0036] 3. Connecting module; 301. Mounting block; 302. Mounting slot; 303. L-shaped top bracket; 304. First spring; 305. Fixing plate; 306. Guide post; 307. Second spring; 308. Pulley; 309. Top block; 310. Clearance slot; 311. Connecting block; 312. Connecting slot; 313. Bolt;

[0037] 4. Linkage module; 401. Placement plate; 402. Mounting tube; 403. Threaded coil; 404. Third spring; 405. Moving block; 406. Ejector pin; 407. Through hole;

[0038] 5. Through hole; 6. Arc extinguishing grid plate; 7. Upper contact plate; 8. Mounting plate; 9. Lower contact plate; 10. Connecting wire; 11. Linkage ring; 12. Fourth spring; 13. Rotating block; 14. Handle; 15. Linkage element; 16. Mounting post; 17. Mounting ring; 18. Tension spring; 19. Mounting box; 20. Motor; 21. Placement box; 22. First compartment; 23. Second compartment; 24. Third compartment; 25. Wireless communication device; 26. Battery; 27. Microcontroller; 28. Connecting rod; 29. ​​First rotating disk; 30. Fixed post; 31. Second rotating disk; 32. Actuating block. Detailed Implementation

[0039] The technical solutions of the specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific implementation method 1:

[0041] like Figure 1-7As shown in the figure, a specific embodiment of the present invention provides a photovoltaic intelligent circuit breaker, including a housing 1, a cover plate 2 fixedly connected to one side of the housing 1, through holes 5 at both ends of the housing 1, a connection module 3 at both ends inside the housing 1, a linkage module 4 at the upper end inside the housing 1, an arc extinguishing grid plate 6 fixedly installed on one side inside the housing 1, an mounting plate 8 fixedly installed on one side of the arc extinguishing grid plate 6, a lower contact plate 9 movably connected to the lower end of the mounting plate 8, a connecting wire 10 fixedly connected inside the lower contact plate 9, and an upper contact plate 7 corresponding to the lower contact plate 9 fixedly connected to the side of the arc extinguishing grid plate 6 away from the mounting plate 8.

[0042] Both connection modules 3 include a mounting block 301 and a fixing plate 305 fixedly connected to the housing 1. A clearance groove 310 is provided on one side of the mounting block 301, and a mounting groove 302 is provided inside the mounting block 301. A first spring 304 is fixedly connected to one end of the mounting groove 302, and an L-shaped top bracket 303 is fixedly connected to one end of the first spring 304. The L-shaped top bracket 303 is slidably connected to the inner wall of the mounting groove 302. In use, a wire is inserted into the mounting groove 302 until it contacts the L-shaped top bracket 303. Moving the wire causes the L-shaped top bracket 303 to move, thereby compressing the first spring 304 to store energy. A guide post 306 is slidably connected inside the fixing plate 305. A lever plate 308 is fixedly connected to one end of the guide post 306. One end of the lever plate 308 passes through the through hole 5 and extends to the outside of the housing 1. A top block 309 is fixedly connected to the surface of the lever plate 308. The top block 309 and the clearance groove 302 are connected to the mounting groove 302. The inner wall of the slot 310 is slidably connected and abuts against the L-shaped top frame 303. The guide post 306 is fitted with a second spring 307. The second spring 307 is located between the lever plate 308 and the fixed plate 305. When the L-shaped top frame 303 moves to a position where it is no longer in contact with the top block 309, the second spring 307 will drive the top block 309 to move towards the inside of the mounting slot 302, thereby driving the top block 309 to clamp the wire. A connecting block 311 is fixedly connected to one side surface of the mounting block 301. A connecting slot 312 is opened inside the connecting block 311. A bolt 313 is threadedly connected to the corresponding position of the connecting slot 312 inside the connecting block 311. When in use, rotating the bolt 313 will cause the bolt 313 to move towards the inside of the connecting slot 312, which can clamp the spiral coil 403 or the connecting wire 10 inside the connecting slot 312, thereby preventing loosening during use and affecting the normal operation of the circuit breaker.

[0043] Linkage module 4 includes a placement plate 401 fixedly connected to the housing 1. An installation tube 402 is fixedly connected to the upper end of the placement plate 401. A threaded coil 403 is sleeved on the outside of the installation tube 402. One end of the threaded coil 403 and one end of the connecting wire 10 extend into the connecting grooves 312 opened inside the connecting blocks 311 of the two connecting modules 3, respectively, and contact the inner wall of the connecting grooves 312. A third spring 404 is provided at the lower end of the installation tube 402. A moving block 405 is slidably connected inside the installation tube 402. The lower end of the moving block 405 is connected to the upper end of the third spring 404. The lower end of the movable block 405 is fixedly connected to the ejector pin 406. The placement plate 401 has a through hole 407 corresponding to the ejector pin 406. When the circuit is abnormal and the current increases, the magnetism of the threaded coil 403 is enhanced, which makes the movable block 405 overcome the tension of the third spring 404 and pull the movable block 405 and the ejector pin 406 downward. The ejector pin contacts the rotating block 13 and drives the rotating block to rotate. The rotating block drives the lower contact piece 9 to rotate around the lower end of the mounting piece 8 through the linkage ring 11, so that the lower contact piece 9 is separated from the upper contact piece 7, thus breaking the circuit.

[0044] A rotating block 13 is rotatably connected inside the housing 1. A connecting ring 11 is rotatably connected to the surface of the lower contact piece 9. One end of the connecting ring 11 is rotatably connected to the lower end of one side of the rotating block 13. A fourth spring 12 is sleeved on the outside of the connecting ring 11. A handle 14 is rotatably connected to the position corresponding to the rotating block 13 inside the housing 1. A connecting element 15 is rotatably connected to the surface of the handle 14. One end of the connecting element 15 is rotatably connected to the rotating block 13. An installation ring 17 is fixedly connected to the inner wall of the housing 1. An installation post 16 is fixedly connected to the surface of the rotating block 13. A tension spring 18 is movably connected between the installation post 16 and the installation ring 17. When the rotating block 13 rotates and drives the lower contact piece 9 to rotate, it will drive the connecting ring 11 to move, thereby driving the rotating block 13 to rotate further. At the same time, the fourth spring 12 and the tension spring 18 will synchronously recover their deformation, thereby accelerating the rotation of the rotating block 13, thus making the circuit breaker's circuit breaking process faster.

[0045] A mounting box 19 is fixedly connected to one side surface of the housing 1. A motor 20 is fixedly connected inside the mounting box 19. A second rotating disk 31 is fixedly connected to the output end of the motor 20. A toggle block 32 is fixedly connected to the surface of the second rotating disk 31. A connecting rod 28 is fixedly connected to the surface of the handle 14. One end of the connecting rod 28 passes through the housing 1 and extends into the mounting box 19. A first rotating disk 29 is fixedly connected to the other end of the connecting rod 28. A fixing post 30 corresponding to the toggle block 32 is fixedly connected to the surface of the first rotating disk 29. The positions on the surface of the housing 1 corresponding to the mounting box 19 are fixedly connected. The placement box 21 includes a first compartment 22, a second compartment 23, and a third compartment 24. A wireless communication device 25 is fixedly connected inside the first compartment 22, a storage battery 26 is fixedly connected inside the second compartment 23, and a microcontroller 27 is fixedly connected inside the third compartment 24. The storage battery 26, the wireless communication device 25, the microcontroller 27, and the motor 20 are all electrically connected. The wireless communication device 25 and the microcontroller 27 are installed inside the placement box 21, which can support users to remotely close the circuit breaker during actual use, making it more convenient to use.

[0046] Working principle: First, when connecting the wire to the circuit breaker, insert the wire into the mounting slot 302 of the connection module. After the wire contacts the L-shaped top bracket 303, continue inserting it. This will cause the L-shaped top bracket to move towards the first spring 304, at which point the first spring 304 is compressed. When the L-shaped top bracket is no longer in contact with the top block 309, the second spring 307 will push the top block and the toggle plate 308 towards the mounting slot 302 until the top block 310 contacts the wire and clamps the wire, completing the wire connection. Then, start the motor 20. The motor drives the second rotating disk 31 to rotate. The toggle block 32 on the second rotating disk moves and contacts the fixed column 30, causing the fixed column to perform a circular motion. The first rotating disk 29 rotates, which in turn drives the connecting rod 28 and the handle 14 to rotate. The handle drives the rotating block 13 to rotate counterclockwise through the linkage 15, so that the lower contact piece contacts the upper contact piece, realizing the closing. Then the motor 20 is reversed, which drives the toggle block 32 away from the fixed post 30, without affecting the normal circuit breaking. When the circuit is abnormal and the current increases, the magnetism of the threaded coil 403 is enhanced, so that the moving block 405 overcomes the tension of the third spring 404 and pulls the moving block 405 and the ejector pin 406 downward. The ejector pin contacts the rotating block 13, which drives the rotating block to rotate. The rotating block drives the lower contact piece 9 to rotate around the lower end of the mounting piece 8 through the linkage ring 11, so that the lower contact piece separates from the upper contact piece 7, realizing the circuit breaking.

[0047] Although specific embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart circuit breaker for photovoltaic applications, comprising a housing (1), characterized in that: A cover plate (2) is fixedly connected to one side of the housing (1), and through holes (5) are provided at both ends of the housing (1). A connecting module (3) is provided at both ends of the housing (1), and a linkage module (4) is provided at the upper end of the housing (1). An arc-extinguishing grid plate (6) is fixedly provided on one side of the housing (1). An installation plate (8) is fixedly provided on one side of the arc-extinguishing grid plate (6). A lower contact plate (9) is movably connected to the lower end of the installation plate (8). A connecting line (10) is fixedly connected inside the lower contact plate (9). An upper contact plate (7) corresponding to the lower contact plate (9) is fixedly connected to the side of the arc-extinguishing grid plate (6) away from the installation plate (8). Both of the connection modules (3) include a mounting block (301) and a fixing plate (305) fixedly connected to the housing (1). The mounting block (301) has a clearance groove (310) on one side and a mounting groove (302) inside. A first spring (304) is fixedly connected to one end of the mounting groove (302), and an L-shaped top bracket (303) is fixedly connected to one end of the first spring (304). The L-shaped top bracket (303) is slidably connected to the inner wall of the mounting groove (302). A guide post (306) is slidably connected inside the fixed plate (305). One end of the guide post (306) is fixedly connected to a lever plate (308). One end of the lever plate (308) passes through the through hole (5) and extends to the outside of the housing (1). A top block (309) is fixedly connected to the surface of the lever plate (308). The top block (309) is slidably connected to the inner wall of the relief groove (310) and abuts against the L-shaped top frame (303). A second spring (307) is sleeved on the outside of the guide post (306). The second spring (307) is located between the lever plate (308) and the fixed plate (305). A rotating block (13) is rotatably connected inside the housing (1), and a handle (14) is rotatably connected inside the housing (1) at a position corresponding to the rotating block (13). A mounting box (19) is fixedly connected to one side surface of the housing (1). A motor (20) is fixedly connected inside the mounting box (19). A second rotating disk (31) is fixedly connected to the output end of the motor (20). A toggle block (32) is fixedly connected to the surface of the second rotating disk (31). A connecting rod (28) is fixedly connected to the surface of the handle (14). One end of the connecting rod (28) passes through the housing (1) and extends into the mounting box (19). A first rotating disk (29) is fixedly connected to one end of the connecting rod (28). A fixed post (30) corresponding to the toggle block (32) is fixedly connected to the surface of the first rotating disk (29). After the circuit breaker is closed, the motor (20) is reversed, which drives the toggle block (32) away from the fixed column (30).

2. The intelligent circuit breaker for photovoltaic applications according to claim 1, characterized in that: A connecting block (311) is fixedly connected to one side surface of the mounting block (301). A connecting groove (312) is provided inside the connecting block (311). A bolt (313) is threadedly connected to the corresponding position inside the connecting block (311) and the connecting groove (312).

3. A smart circuit breaker for photovoltaic applications according to claim 2, characterized in that: The linkage module (4) includes a placement plate (401) fixedly connected to the housing (1). An installation tube (402) is fixedly connected to the upper end of the placement plate (401). A threaded coil (403) is sleeved on the outside of the installation tube (402). One end of the threaded coil (403) and the connecting line (10) respectively extend into the connecting groove (312) opened inside the connecting block (311) of the two connecting modules (3) and contact the inner wall of the connecting groove (312). A third spring (404) is provided at the lower end of the installation tube (402). A moving block (405) is slidably connected inside the installation tube (402). The lower end of the moving block (405) abuts against the upper end of the third spring (404). A pin (406) is fixedly connected to the lower end of the moving block (405). A through hole (407) corresponding to the pin (406) is opened inside the placement plate (401).

4. The intelligent circuit breaker for photovoltaic applications according to claim 1, characterized in that: The lower contact piece (9) is rotatably connected to a linkage ring (11), one end of the linkage ring (11) is rotatably connected to the lower end of one side of the rotating block (13), a fourth spring (12) is sleeved on the outside of the linkage ring (11), a linkage member (15) is rotatably connected to the surface of the handle (14), one end of the linkage member (15) is rotatably connected to the rotating block (13), an installation ring (17) is fixedly connected to the inner wall of the housing (1), an installation post (16) is fixedly connected to the surface of the rotating block (13), and a tension spring (18) is movably connected between the installation post (16) and the installation ring (17).

5. A smart circuit breaker for photovoltaic applications according to claim 1, characterized in that: The housing (1) is fixedly connected to the placement box (21) at the position corresponding to the mounting box (19). The placement box (21) includes a first compartment (22), a second compartment (23) and a third compartment (24). A wireless communication device (25) is fixedly connected inside the first compartment (22). A storage battery (26) is fixedly connected inside the second compartment (23). A microcontroller (27) is fixedly connected inside the third compartment (24). The storage battery (26), the wireless communication device (25), the microcontroller (27) and the motor (20) are all electrically connected.

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