Intelligent circuit breaker for photovoltaic power generation

Abstract

The invention discloses an intelligent circuit breaker for photovoltaic power generation, and relates to the technical field of circuit breakers, the intelligent circuit breaker comprises a circuit breaker front cover, the rear end of the circuit breaker front cover is fixedly connected with a circuit breaker main body through a bolt, a plurality of wire clamping mechanisms are arranged on the top surface and the bottom surface of the circuit breaker main body in a penetrating manner, and the wire clamping mechanisms are used for connecting and fixing wires; a switching mechanism is arranged at the rear part of the top of the wire clamping mechanism and is used for adjusting the connection state of the plurality of wire clamping mechanisms, so that the plurality of wire clamping mechanisms can be switched between independent adjustment or overall adjustment according to requirements; a driving mechanism is arranged at the top of the switching mechanism and is used for driving the switching mechanism; and the top and the bottom of the circuit breaker main body are movably connected with sealing covers through spring hinges. According to the invention, different states can be switched according to use requirements, so that wires can be synchronously fixed or independently fixed, and the wires with different thicknesses can be fixed at the same time.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and in particular to an intelligent circuit breaker for photovoltaic power generation. Background Technology

[0002] A circuit breaker is a safety device that automatically disconnects a circuit. It can automatically cut off the power supply and protect the electrical system from the threat of overload, short circuit or ground fault. Intelligent circuit breakers for photovoltaic power generation are specially designed for photovoltaic systems. They inherit the reliable interruption protection function of traditional circuit breakers, and integrate monitoring, control and communication capabilities, giving photovoltaic systems the functions of real-time insight, intelligent control and efficient interconnection. Patent document CN117457445B discloses "an intelligent circuit breaker for photovoltaic power generation, belonging to the field of circuit breaker technology; including a circuit breaker body and a wiring mechanism, wherein an installation mechanism for quick installation is provided at the rear center of the circuit breaker body, and the wiring mechanism for external wiring is located inside the upper part of the circuit breaker body. This invention, through the cooperation between the parts of the wiring mechanism, can center and press the wire body when it is inserted into the insertion hole, thereby positioning the wire body for secondary tightening. Through the spring shaft, it can naturally deform when the pressure plates are aligned, allowing for more contact between the pressure plates on both sides." The area is large, and the toothed plate can increase the biting force when pressing the wire to prevent the wire from loosening. Through the transmission of rotational force by the connecting rod, and the multiple sets of first meshing gears and pressing plates, multiple sets of wire ends can be connected at the same time. Although multiple sets of wire ends can be connected at the same time, the structure of fixing the wire is integrated and cannot be adjusted individually. It is not possible to switch the structure of fixing the wire according to the needs. Therefore, when repairing or replacing one wire, loosening one wire will cause the other wires to loosen as well. Furthermore, since the structure of fixing the wire operates synchronously, it is not possible to fix wires of different thicknesses at the same time. Summary of the Invention

[0003] The main objective of this invention is to provide an intelligent circuit breaker for photovoltaic power generation, which can effectively solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A smart circuit breaker for photovoltaic power generation includes a circuit breaker front cover. The rear end of the circuit breaker front cover is fixed to the circuit breaker body by bolts. Several wire clamping mechanisms are provided through the top and bottom surfaces of the circuit breaker body. The wire clamping mechanisms are used to connect and fix the wires. A switching mechanism is provided at the top rear of the wire clamping mechanism. The switching mechanism is used to adjust the connection status of several wire clamping mechanisms, so that several wire clamping mechanisms can switch between individual adjustment or overall adjustment as needed. The top of the switching mechanism is provided with a driving mechanism, which is used to drive the switching mechanism, and then drives the wire clamping mechanism to run through the switching mechanism. The top and bottom of the circuit breaker body are both movably connected to a cover via spring hinges; Several sealing mechanisms are provided on the top and bottom surfaces of the circuit breaker front cover. The position and number of the sealing mechanisms correspond to the wire clamping mechanism. The sealing mechanisms are used to protect the wire clamping mechanism and the drive mechanism in conjunction with the cover.

[0005] Specifically, the switching mechanism drives the wire clamping mechanism to clamp and fix the wire. This allows the driving mechanism to work with the switching mechanism to simultaneously drive multiple wire clamping mechanisms to fix the wire. When the switching mechanism is adjusted, some components of the switching mechanism are separated. At this time, a single driving mechanism can only work with the switching mechanism to drive one wire clamping mechanism to operate. This makes it convenient to operate one wire clamping mechanism individually as needed when replacing or repairing wires. At the same time, since the operation of a single wire clamping mechanism will not affect the operation of the other wire clamping mechanisms, several wire clamping mechanisms can fix wires of different thicknesses.

[0006] As a further embodiment of the present invention, the wire clamping mechanism includes a frame fixedly connected to the circuit breaker body; The pressure plates are movably connected to the frame on both sides by torsion springs, and the pressure plates are set in a "V" shape. Rotate the roller connected to the rear end of the pressure plate; the roller is used to cooperate with the pressure plate to press the wire. The terminal block is located at the front end between the two pressure plates. The terminal block is fixed to the circuit breaker body and is used to establish an electrical connection with the external conductor. The terminal block consists of a cylindrical section and a rectangular section.

[0007] Specifically, the end of the pressure plate presses the wire onto the junction of the cylinder and cuboid on the terminal block, preventing the wire from detaching from the terminal block due to external tension.

[0008] As a further embodiment of the present invention, the wire clamping mechanism further includes a top block disposed between the two wire clamping plates at the rear end. The top block has a semi-elliptical top view and is used to adjust the opening and closing degree of the two wire clamping plates. A toothed post is fixed to the rear end of the top block. The toothed post passes through the frame and is movably connected to it. The toothed post is used to adjust the position of the top block.

[0009] As a further embodiment of the present invention, the switching mechanism includes a toothed roller that meshes with the toothed column, the toothed roller being used to drive the toothed column to move.

[0010] Specifically, the front ends of the two pressure plates gradually move closer to each other, reducing the opening and closing degree of the front ends of the pressure plates, making it easier to press wires of different thicknesses.

[0011] As a further embodiment of the present invention, the switching mechanism further includes a transmission rod fixedly connected to both ends of the toothed roller, and the transmission rod is movably connected to the circuit breaker body through bearings; An adjustment groove is provided through the end face of the transmission rod; Slot 1 is located in the center of adjustment slot 1; Adjustment rod 1 is movably inserted into the adjustment slot 1; A one-way clamp is fixed to one end of the adjusting rod. Both the one-way clamp and the groove are arranged in a cross-section of "+". The diameter of the adjusting groove is equal to the outer diameter of the one-way clamp. Adjustment groove 2 is provided through the other end face of adjustment rod 1; A second slot is formed on one side of the adjustment groove, and the length of the second slot is equal to the length of the first slot. The bidirectional clamp is snapped into the inside of the second clamp slot. The bidirectional clamp is movably connected to the circuit breaker body through a bearing. Both the bidirectional clamp and the second clamp slot have a cross-section in the shape of a cross. The diameter of the second clamp slot is equal to the outer diameter of the bidirectional clamp.

[0012] Specifically, it allows for the independent operation of the wire clamping mechanism as needed, ensuring that the remaining wires do not become loose when replacing a damaged wire.

[0013] As a further aspect of the present invention, the driving mechanism includes a mounting box; The worm gear is movably connected to one side of the housing via a bearing; The worm wheel is meshed with the bottom of the worm gear. The distance between the inner walls on both sides of the mounting box is twice the thickness of the worm wheel. An adjusting rod passes through the middle of the worm wheel and is fixedly connected to it. Several limiting grooves are formed inside the circuit breaker body and outside the worm gear. The width of the limiting grooves is twice the thickness of the worm gear. A knob fixed to the front end of the worm gear is used to drive the worm gear to rotate.

[0014] As a further embodiment of the present invention, the driving mechanism further includes a slider fixedly attached to the front and rear ends of the bottom of the mounting box; A sliding groove is formed through the top surface of the circuit breaker body, and the slider is located inside the groove and slidably connected to it.

[0015] Specifically, it facilitates adjusting the state of the switching mechanism according to needs, rationally selecting the overall or partial operation of the switching mechanism, and then selecting the synchronous or individual operation of several line-clamping mechanisms according to needs.

[0016] As a further embodiment of the present invention, the sealing mechanism includes a plurality of ball cavities that penetrate through the top and bottom surfaces of the circuit breaker front cover; A spherical shell that is movably connected inside the spherical cavity; The interior of the universal ball shell is fixed with an elastic sealing ring.

[0017] As a further embodiment of the present invention, a plurality of limiting cavities are provided through the side of the cap facing the sealing mechanism, and the number of limiting cavities is the same as the number of sealing mechanisms.

[0018] Specifically, it can prevent foreign objects from entering the positions of the wire clamping mechanism and the drive mechanism. At the same time, it avoids wear caused by rigid contact between the wire and the edge of the universal ball shell after the wire is under force, and facilitates the circuit breaker to connect wires from different directions.

[0019] The beneficial effects of this invention are as follows: The present invention adjusts the connection state of the switching mechanism by adjusting the mounting box in the toggle drive mechanism. When the switching mechanism is in the overall connected state, the rotation of a single worm gear can drive the entire switching mechanism to operate, thereby enabling several wire clamping mechanisms to operate synchronously and clamp and fix the wires. When the switching mechanism is in the individual disconnected state, the corresponding worm gear drives the corresponding section of the switching mechanism to operate. At this time, one or more of the several wire clamping mechanisms can operate independently, allowing for the individual inspection and replacement of the corresponding wires without interference with other wires. Furthermore, the individual operation enables the several wire clamping mechanisms to clamp and fix wires of different thicknesses respectively. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 2 This is a partial structural schematic diagram of an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 3 This is a schematic diagram of the wire clamping mechanism in an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 4 This is a cross-sectional view of the switching mechanism in an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 5 This is a cross-sectional view of the drive mechanism in an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 6 This is a cross-sectional enlarged view of the connection between the drive mechanism and the circuit breaker body in an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 7 This is a front sectional view of the drive mechanism in an intelligent photovoltaic power generation circuit breaker according to the present invention; Figure 8 This is a demonstration diagram of a smart circuit breaker for photovoltaic power generation that clamps a conductor according to the present invention; Figure 9 This is an enlarged, disassembled view of the connection between the sealing mechanism of an intelligent photovoltaic power generation circuit breaker and the front cover of the circuit breaker according to the present invention. Figure 10 This is a cross-sectional view of the sealing mechanism in an intelligent photovoltaic power generation circuit breaker according to the present invention.

[0021] In the picture: 1. Circuit breaker front cover; 2. Circuit breaker body; 5. Cover; 6. Limiting cavity; 3. Wire clamping mechanism; 301. Frame; 302. Wire clamping plate; 303. Roller; 304. Top block; 305. Toothed column; 306. Terminal block; 4. Drive mechanism; 401. Mounting box; 402. Worm gear; 403. Knob; 404. Worm wheel; 405. Slider; 406. Slide groove; 407. Limiting groove; 7. Sealing mechanism; 701. Universal ball housing; 702. Elastic sealing ring; 703. Ball cavity; 8. Switching mechanism; 801. Toothed roller; 802. Transmission rod; 803. Adjustment groove one; 804. Slot one; 805. Adjustment rod one; 806. One-way clamp; 807. Two-way clamp; 808. Adjustment groove two; 809. Slot two. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1-10 As shown, a smart circuit breaker for photovoltaic power generation is described. Please refer to it carefully. Figure 1 The circuit breaker includes a front cover 1, and the rear end of the front cover 1 is fixed to the circuit breaker body 2 by bolts. Several wire clamping mechanisms 3 are provided on the top and bottom surfaces of the circuit breaker body 2. The wire clamping mechanisms 3 are used to connect and fix the wires. A switching mechanism 8 is provided at the rear top of the wire clamping mechanism 3. The switching mechanism 8 is used to adjust the connection status of several wire clamping mechanisms 3, so that several wire clamping mechanisms 3 can switch between individual adjustment or overall adjustment as needed. A drive mechanism 4 is provided on the top of the switching mechanism 8. The drive mechanism 4 is used to drive the switching mechanism 8, and then the switching mechanism 8 drives the wire clamping mechanism 3 to run. The top and bottom of the circuit breaker body 2 are movably connected to the cover 5 by spring hinges; Several sealing mechanisms 7 are provided on the top and bottom surfaces of the circuit breaker front cover 1. The position and number of sealing mechanisms 7 correspond to the wire clamping mechanism 3. The sealing mechanisms 7 are used to cooperate with the cover 5 to protect the wire clamping mechanism 3 and the drive mechanism 4.

[0024] Specifically, after opening the cover 5, the wire is passed through the sealing mechanism 7, then bent into a "U" shape. The "U"-shaped part is then inserted into the wire clamping mechanism 3. The driving mechanism 4 drives the switching mechanism 8 to rotate, and the rotation of the switching mechanism 8 drives the wire clamping mechanism 3 to clamp and fix the wire. This allows the driving mechanism 4 to work with the switching mechanism 8 to simultaneously drive multiple wire clamping mechanisms 3 to fix the wire. When the switching mechanism 8 is adjusted, some components of the switching mechanism 8 separate. At this time, a single driving mechanism 4 can only work with the switching mechanism. 8. A single wire clamping mechanism 3 is driven to operate independently, which is convenient when replacing or repairing wires. At the same time, since the operation of a single wire clamping mechanism 3 will not affect the operation of the other wire clamping mechanisms 3, several wire clamping mechanisms 3 can fix wires of different thicknesses. After the wires are fixed, the cover 5 is put on and the sealing mechanism 7 is used to protect the positions of the wire clamping mechanism 3 and the drive mechanism 4, so as to prevent foreign objects from entering the positions of the wire clamping mechanism 3 and the drive mechanism 4 and causing the wire clamping mechanism 3 and the drive mechanism 4 to jam.

[0025] Please refer to this carefully. Figure 2 and Figure 3 The wire clamping mechanism 3 includes a frame 301 that is fixedly connected to the circuit breaker body 2; The pressure plate 302 is movably connected to the two sides of the frame 301 by a torsion spring, and the pressure plate 302 is set in a "V" shape; The roller 303, which is rotatably connected to the rear end of the pressure plate 302, is used to cooperate with the pressure plate 302 to press the wire. A terminal block 306 is located at the front end between two pressure plates 302. The terminal block 306 is fixedly connected to the circuit breaker body 2. The terminal block 306 is used to establish an electrical connection with an external conductor. The terminal block 306 consists of a cylindrical section and a rectangular section.

[0026] Please refer to this carefully. Figure 8 Specifically, when connecting the wire, the part of the wire bent into a "U" shape is placed over the outside of the terminal 306. Then, the wire is pulled to make it fit tightly against the surface of the terminal 306. After that, the two pressure plates 302 rotate around the frame 301. After the front ends of the pressure plates 302 come closer to each other, the ends of the pressure plates 302 press the wire against the junction of the cylinder and the cuboid on the terminal 306 to prevent the wire from coming off the terminal 306 due to external tension.

[0027] Please refer to this carefully. Figure 2 and Figure 3 The wire clamping mechanism 3 also includes a top block 304 disposed between the two wire clamping plates 302 at the rear end. The top block 304 has a semi-elliptical top view and is used to adjust the opening and closing degree of the two wire clamping plates 302. A toothed post 305 is fixed to the rear end of the top block 304. The toothed post 305 passes through the frame 301 and is movably connected to it. The toothed post 305 is used to adjust the position of the top block 304.

[0028] Please refer to this carefully. Figure 2 and Figure 4 The switching mechanism 8 includes a toothed roller 801 that meshes with the toothed column 305, and the toothed roller 801 is used to drive the toothed column 305 to move.

[0029] Specifically, during the rotation of the toothed roller 801, the toothed column 305 moves. As the toothed column 305 moves backward, it drives the adjusting top block 304 to move backward synchronously. When the adjusting top block 304 contacts the roller 303, the roller 303 rolls along the outer surface of the top block 304. While the roller 303 is rolling, the pressure plate 302 rotates around the frame 301. The front ends of the two pressure plates 302 gradually approach each other, reducing the opening and closing degree of the front ends of the pressure plates 302, which makes it easier to press wires of different thicknesses.

[0030] Please refer to this carefully. Figure 2 and Figure 4 The switching mechanism 8 also includes a transmission rod 802 fixed to both ends of the toothed roller 801, and the transmission rod 802 is movably connected to the circuit breaker body 2 through bearings; An adjustment groove 803 is provided through the end face of the transmission rod 802; Slot 804 is located in the center of adjustment slot 803; Adjusting rod 805 is movably inserted into the adjusting slot 803; A one-way clamp 806 is fixed to one end of the adjusting rod 805. The cross-sections of the one-way clamp 806 and the clamp groove 804 are both arranged in a "+" shape. The diameter of the adjusting groove 803 is equal to the outer diameter of the one-way clamp 806. The adjustment groove 808 is provided through the other end face of the adjustment rod 805; A second slot 809 is provided on one side of the second adjustment slot 808, and the length of the second slot 809 is equal to the length of the first slot 804; The bidirectional clamp 807 is snapped into the slot 2 809. The bidirectional clamp 807 is movably connected to the circuit breaker body 2 through a bearing. The cross-sections of both the bidirectional clamp 807 and the slot 2 809 are arranged in a "+" shape. The diameter of the adjusting slot 2 808 is equal to the outer diameter of the bidirectional clamp 807.

[0031] Specifically, in the initial state, the bidirectional clamp 807 is engaged inside the second clamping slot 809, and the unidirectional clamp 806 is engaged inside the first clamping slot 804. At this time, as the first adjusting rod 805 rotates, the unidirectional clamp 806 and the second clamping slot 809 rotate synchronously. Since the unidirectional clamp 806 is engaged inside the first clamping slot 804, the transmission rod 802 and the toothed roller 801 rotate synchronously. Because the bidirectional clamp 807 is engaged inside the second clamping slot 809, it will drive the other section of the first adjusting rod 805 to rotate synchronously, which in turn will drive the other section of the transmission rod 802 and the toothed roller 801 to rotate synchronously, facilitating the rotation of the drive rod. One of the adjusting rods 805 drives all the switching mechanisms 8. When the adjusting rod 805 is pushed to push the one-way clamp 806 into the adjusting slot 803, the two-way clamp 807 disengages from the slot 809 and enters the adjusting slot 808. At this time, since the one-way clamp 806 is disengaged from the slot 804 and the two-way clamp 807 is disengaged from the slot 809, rotating the adjusting rod 805 will not drive the two-way clamp 807 and the rest of the parts to rotate. This allows the wire clamping mechanism 3 to be driven separately as needed, and will not cause the remaining wires to loosen when replacing damaged wires.

[0032] Please refer to this carefully. Figure 5 and Figure 6 The drive mechanism 4 includes a mounting box 401; The worm gear 402 is movably connected to one side of the housing 401 via a bearing; The worm wheel 404 is meshed with the bottom of the worm 402. The distance between the inner walls on both sides of the housing 401 is twice the thickness of the worm wheel 404. The adjusting rod 805 passes through the middle of the worm wheel 404 and is fixedly connected to it. Several limiting grooves 407 are formed inside the circuit breaker body 2 and outside the worm gear 404. The width of the limiting grooves 407 is twice the thickness of the worm gear 404. A knob 403 is fixed to the front end of the worm gear 402. The knob 403 is used to drive the worm gear 402 to rotate.

[0033] Please refer to this carefully. Figure 5 and Figure 6 The drive mechanism 4 also includes a slider 405 fixed to the front and rear ends of the bottom of the mounting box 401; A slide groove 406 is formed through the top surface of the circuit breaker body 2, and a slider 405 is located inside the slide groove 406 and slidably connected thereto.

[0034] Please refer to this carefully. Figure 4 and Figure 7Specifically, rotating the knob 403 simultaneously drives the worm gear 402 to rotate synchronously. The worm gear 402 then drives the worm wheel 404 to rotate, and the rotation of the worm wheel 404 drives the adjusting rod 805, which is fixed to it, to rotate. This facilitates the operation of the switching mechanism 8 via the drive mechanism 4. When the mounting box 401 is pushed, the slider 405 slides along the groove 406, and the worm gear 402 moves with the mounting box 401, disengaging from the top of the worm wheel 404. This prevents the other worm gears 402 from getting stuck on their bottom worm wheel 404 while one worm gear 402 is being rotated, thus preventing the switching mechanism from being blocked. The entire switching mechanism 8 is driven by a worm gear 402. When the mounting box 401 is pushed further, the inner wall of the other side of the mounting box 401 contacts the worm wheel 404, which will drive the worm wheel 404 to move synchronously. This will drive the adjusting rod 805, which is fixed to the worm wheel 404, to move, thereby driving the switching mechanism 8 to switch from the overall connected state to the individual disconnected state. This allows for adjustment of the state of the switching mechanism 8 as needed, and reasonable selection of the overall or partial operation of the switching mechanism 8. Furthermore, it allows for selection of the synchronous or individual operation of several wire clamping mechanisms 3 as needed.

[0035] Please refer to this carefully. Figure 1 and Figure 9 The sealing mechanism 7 includes a plurality of ball cavities 703 that penetrate the top and bottom surfaces of the circuit breaker front cover 1; The universal spherical shell 701 is movably connected inside the spherical cavity 703; An elastic sealing ring 702 is fixedly connected inside the universal ball housing 701.

[0036] Please refer to this carefully. Figure 1 A number of limiting cavities 6 are provided on the side of the cover 5 facing the sealing mechanism 7, and the number of limiting cavities 6 is the same as the number of sealing mechanisms 7.

[0037] Specifically, after inserting the wire into the elastic sealing ring 702 and then passing it out, the wire is clamped and fixed. Then, the cover 5 is put on, which, together with the sealing mechanism 7, protects the positions of the wire clamping mechanism 3 and the drive mechanism 4, preventing foreign objects from entering these positions. At the same time, since the universal ball housing 701 is movably connected to the ball cavity 703, when the wire is pulled by an external force, after the wire contacts the edge of the universal ball housing 701, the universal ball housing 701 can rotate due to the pressure of the wire. This avoids wear caused by rigid contact between the wire and the edge of the universal ball housing 701 after the wire is subjected to force, and facilitates the circuit breaker to connect wires from different directions.

[0038] Working principle Please refer to this carefully. Figure 2 and Figure 4When overall adjustment is required, one set of worm gears 404 remains engaged with the worm 402. Pushing the mounting box 401 causes the remaining worms 402 to disengage from the worm gears 404, preventing the worms 402 from obstructing the rotation of the worm gears 404. The wire is bent into a "U" shape. When connecting the wire, the "U"-shaped portion of the wire is placed over the outside of the terminal block 306. The wire is then tightened. Afterwards, the knob 403 is turned, causing the worm gears 404, which remain engaged with the worm 402, to rotate synchronously. This, in turn, causes the worm gears 404 to rotate, and the rotation of the worm gears 404 causes the adjusting rod 805, which is fixed to them, to rotate. This facilitates driving the switching mechanism through one set of worm gears 404 and worm 402. When the mechanism 8 is running, the toothed roller 801 rotates, driving the toothed column 305 to move. As the toothed column 305 moves backward, it drives the adjusting top block 304 to move backward synchronously. When the adjusting top block 304 contacts the roller 303, the roller 303 rolls along the outer surface of the top block 304. While the roller 303 is rolling, the wire pressing plate 302 rotates around the frame 301. The front ends of the two wire pressing plates 302 gradually approach each other. The end of the wire pressing plate 302 presses the wire onto the junction of the cylinder and the cuboid on the terminal block 306, preventing the wire from coming off the terminal block 306 after being pulled by the outside. This facilitates the synchronous operation of several wire clamping mechanisms 3, and at the same time, it presses and fixes several wires of the same thickness. When individual adjustment is required, push the mounting box 401 on one side of the toothed roller 801, pushing the toothed roller 801 and the adjacent mounting box 401 on the other side. The movement of the mounting box 401 causes the second slot 809 to disengage from the bidirectional clamp 807, and the unidirectional clamp 806 to disengage from the first slot 804. At this time, the transmission rods 802 at both ends of the toothed roller 801 are disengaged from their adjacent transmission rods 802, and there is no transmission relationship between them. Rotate the knob 403 on the other side of the toothed roller 801 to drive the worm gear 402 to rotate, which in turn drives the worm wheel 404 to rotate. The worm gear 404 drives the adjusting rod 805 and the one-way clamp 806 to rotate synchronously, and in conjunction with the clamping groove 804 and the transmission rod 802, drives the toothed roller 801 to rotate, thereby driving the toothed column 305 that meshes with it to move. At this time, the drive mechanism 4 can only work with the switching mechanism 8 to drive one wire clamping mechanism 3 to operate independently. This makes it convenient to operate the corresponding wire clamping mechanism 3 independently as needed when replacing or repairing wires. At the same time, since the operation of a single wire clamping mechanism 3 will not affect the operation of the other wire clamping mechanisms 3, several wire clamping mechanisms 3 can fix wires of different thicknesses.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A smart circuit breaker for photovoltaic power generation, comprising a circuit breaker front cover (1), wherein the rear end of the circuit breaker front cover (1) is fixedly connected to the circuit breaker body (2) by bolts, characterized in that: Several wire clamping mechanisms (3) are provided on the top and bottom surfaces of the circuit breaker body (2). The wire clamping mechanisms (3) are used to connect and fix the wires. A switching mechanism (8) is provided at the rear top of the wire clamping mechanism (3). The switching mechanism (8) is used to adjust the connection state of several wire clamping mechanisms (3) so that several wire clamping mechanisms (3) can switch between individual adjustment or overall adjustment as needed. The top of the switching mechanism (8) is provided with a driving mechanism (4), which is used to drive the switching mechanism (8), and then drive the wire clamping mechanism (3) to run through the switching mechanism (8); The top and bottom of the circuit breaker body (2) are movably connected to the cover (5) by spring hinges. Several sealing mechanisms (7) are provided on the top and bottom surfaces of the circuit breaker front cover (1). The position and number of the sealing mechanisms (7) correspond to the wire clamping mechanism (3). The sealing mechanisms (7) are used to cooperate with the cover (5) to protect the wire clamping mechanism (3) and the drive mechanism (4).

2. The intelligent circuit breaker for photovoltaic power generation according to claim 1, characterized in that: The wire clamping mechanism (3) includes a frame (301) fixedly connected to the circuit breaker body (2). The pressure plates (302) are movably connected to the frame (301) on both sides of the frame by torsion springs, and the pressure plates (302) are set in a "V" shape; Rotate the roller (303) connected to the rear end of the pressure plate (302), the roller (303) is used to cooperate with the pressure plate (302) to press the wire; A terminal block (306) is set between the two pressure plates (302) near the front end. The terminal block (306) is fixedly connected to the circuit breaker body (2). The terminal block (306) is used to establish an electrical connection with the external conductor. The terminal block (306) is composed of a cylindrical section and a rectangular section.

3. The intelligent circuit breaker for photovoltaic power generation according to claim 2, characterized in that: The wire clamping mechanism (3) also includes a top block (304) disposed between the two wire clamping plates (302) at the rear end. The top block (304) has a semi-elliptical top view and is used to adjust the opening and closing degree of the two wire clamping plates (302). A toothed post (305) is fixed to the rear end of the top block (304). The toothed post (305) passes through the frame (301) and is movably connected to it. The toothed post (305) is used to adjust the position of the top block (304).

4. The intelligent circuit breaker for photovoltaic power generation according to claim 3, characterized in that: The switching mechanism (8) includes a toothed roller (801) meshing with the toothed column (305), the toothed roller (801) being used to drive the toothed column (305) to move.

5. The intelligent circuit breaker for photovoltaic power generation according to claim 4, characterized in that: The switching mechanism (8) also includes a transmission rod (802) fixed to both ends of the toothed roller (801), and the transmission rod (802) is movably connected to the circuit breaker body (2) through bearings; An adjustment groove (803) is provided through the end face of the transmission rod (802); A card slot (804) is provided in the center of the adjustment slot (803); Adjustment rod 1 (805) is movably inserted into the adjustment slot 1 (803); A one-way clamp (806) is fixed to one end of the adjusting rod (805). The cross sections of the one-way clamp (806) and the clamp groove (804) are both arranged in a "+" shape. The diameter of the adjusting groove (803) is equal to the outer diameter of the one-way clamp (806). Adjustment groove 2 (808) is provided through the other end face of adjustment rod 1 (805); A second slot (809) is provided on one side of the second adjustment slot (808), and the length of the second slot (809) is equal to the length of the first slot (804); The bidirectional clamp (807) is snapped into the slot 2 (809). The bidirectional clamp (807) is movably connected to the circuit breaker body (2) through a bearing. The cross sections of the bidirectional clamp (807) and the slot 2 (809) are both set in a "+" shape. The diameter of the adjustment slot 2 (808) is equal to the outer diameter of the bidirectional clamp (807).

6. The intelligent circuit breaker for photovoltaic power generation according to claim 5, characterized in that: The drive mechanism (4) includes a mounting box (401). The worm gear (402) is movably connected to one side of the housing (401) via a bearing. The worm wheel (404) is meshed with the bottom of the worm (402). The distance between the inner walls on both sides of the mounting box (401) is twice the thickness of the worm wheel (404). The adjusting rod (805) passes through the middle of the worm wheel (404) and is fixedly connected to it. Several limiting grooves (407) are formed inside the circuit breaker body (2) and outside the worm gear (404). The width of the limiting grooves (407) is twice the thickness of the worm gear (404). A knob (403) is fixed to the front end of the worm (402), and the knob (403) is used to drive the worm (402) to rotate.

7. The intelligent circuit breaker for photovoltaic power generation according to claim 6, characterized in that: The drive mechanism (4) also includes a slider (405) fixed to the front and rear ends of the bottom of the mounting box (401). A slide groove (406) is formed through the top surface of the circuit breaker body (2), and a slider (405) is located inside the slide groove (406) and slidably connected to it.

8. The intelligent circuit breaker for photovoltaic power generation according to claim 1, characterized in that: The sealing mechanism (7) includes a plurality of ball cavities (703) that penetrate the top and bottom surfaces of the circuit breaker front cover (1). A omnidirectional spherical shell (701) is movably connected inside the spherical cavity (703); An elastic sealing ring (702) is fixed inside the universal ball shell (701).

9. A smart circuit breaker for photovoltaic power generation according to claim 8, characterized in that: A number of limiting cavities (6) are provided on the side of the cover (5) facing the sealing mechanism (7), and the number of limiting cavities (6) is the same as the number of sealing mechanisms (7).

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