A primary and secondary fused circuit breaker linkage control mechanism

Abstract

This application relates to the field of integrated circuit breaker linkage control technology, specifically to a primary and secondary integrated circuit breaker linkage control mechanism, used to control the opening and closing linkage of the moving conductive component and the stationary conductive component. It includes an arc-extinguishing chamber, a first gas-filling mechanism, and a second gas-filling mechanism. A piston is installed in the inner cavity of the arc-extinguishing chamber, forming an independently sealed first chamber and a second chamber. The stationary conductive component is located in the first chamber, and the moving conductive component is mounted on the piston and moves synchronously with it. During opening, the first gas-filling mechanism fills the first chamber with high-pressure inert gas, pushing the piston towards the second chamber, causing the moving conductive component to move away from the stationary conductive component. During closing, the second gas-filling mechanism fills the second chamber with high-pressure inert gas, pushing the piston towards the first chamber, causing the moving conductive component to connect and conduct with the stationary conductive component. No spring is involved throughout the entire process, avoiding spring fatigue failure and ensuring stable and reliable opening and closing.

Description

Technical Field

[0001] This application relates to the field of integrated circuit breaker linkage control technology, and more specifically, to a primary and secondary integrated circuit breaker linkage control mechanism. Background Technology

[0002] Existing circuit breakers generally adopt a spring energy storage operating mechanism, which releases elastic potential energy through the spring to drive mechanical transmission components to complete rapid opening and closing operations. This is currently the mainstream driving method for circuit breakers.

[0003] Springs are subjected to reciprocating compression and tension loads over a long period of time, making them highly susceptible to elastic fatigue and stress decay. As the service life increases, the spring's own elastic force gradually decreases, its elastic recovery performance deteriorates, and it becomes unable to stably output the rated driving force.

[0004] This problem directly leads to slow opening and closing of circuit breakers, insufficient travel, and loose contact, which not only reduces the accuracy and consistency of equipment operation, but also easily causes safety hazards such as contact overheating and poor conductivity, significantly reducing the overall reliability of operation. Summary of the Invention

[0005] According to this application, a primary and secondary integrated circuit breaker linkage control mechanism is provided. This solution uses inert gas drive instead of spring drive, fundamentally solving the spring failure problem, ensuring stable and accurate opening and closing actions, improving equipment operation consistency and safety, and significantly improving overall operational reliability. It solves the problem that existing circuit breakers generally use spring energy storage drive mechanisms, where metal springs are prone to elastic fatigue and stress attenuation due to long-term reciprocating force, resulting in reduced driving force, unstable opening and closing actions, and incomplete stroke, which seriously affects the operational reliability and stability of the circuit breaker.

[0006] This application provides a primary and secondary integrated circuit breaker linkage control mechanism for controlling the opening and closing linkage of the moving conductive component and the stationary conductive component, including an arc-extinguishing chamber, a first gas-filling mechanism and a second gas-filling mechanism. The arc-extinguishing chamber has an inner cavity, and a piston is installed in the inner cavity. The piston divides the inner cavity into a first chamber and a second chamber. The static conductive component is disposed in the first chamber, and the dynamic conductive component is assembled on the piston and moves synchronously with the piston. The first inflation mechanism passes through the arc-extinguishing chamber and the piston and is connected to the first chamber; it is used to fill the first chamber with inert gas, push the piston to move the moving conductive component away from the stationary conductive component, and realize the opening action; The second inflation mechanism passes through the arc-extinguishing chamber and is connected to the second chamber; it is used to fill the second chamber with inert gas, push the piston to move the moving conductive component closer to the stationary conductive component, and realize the closing action.

[0007] In one embodiment, the linkage control mechanism further includes a first exhaust pipe and a second exhaust pipe; The first exhaust pipe passes through the arc-extinguishing chamber and the piston and is connected to the first chamber, and is used to discharge the inert gas in the first chamber during the closing process; The second exhaust pipe passes through the arc-extinguishing chamber and is connected to the second chamber, and is used to discharge the inert gas in the second chamber during the opening process.

[0008] In one embodiment, the linkage control mechanism further includes a mechanism housing, the mechanism housing having a sealed cavity inside; The arc-extinguishing chamber is fixedly installed on the mechanism box. The first exhaust pipe, the second exhaust pipe, the first inflation mechanism, and the second inflation mechanism are all connected to the sealed cavity, thereby realizing the closed-loop recycling of inert gas.

[0009] In one embodiment, the first inflation mechanism includes a retractable tube and a first pneumatic mechanism; The retractable pipeline passes through the sealing cavity, the arc-extinguishing chamber, and the piston, with one end of the retractable pipeline placed inside the sealing cavity and the other end extending into the first chamber. The first pneumatic mechanism is disposed in the sealed cavity and connected to the retractable pipeline, and is used to transport the inert gas in the sealed cavity to the first chamber through the retractable pipeline.

[0010] In one embodiment, the first pneumatic mechanism includes a first air tank and a first air pump; The first gas storage tank is disposed inside the sealed cavity and is used to store inert gas; The first air pump is located inside the sealed cavity and connected to the first air storage tank. It is used to send the inert gas in the sealed cavity into the first air storage tank and maintain the inert gas inside the first air storage tank at a high pressure.

[0011] In one embodiment, the retractable pipeline includes a first pipe body, a first solenoid valve, a first telescopic pipe, and a second pipe body; The first tube extends through the sealing cavity and the arc-extinguishing chamber, and one end of the first tube is connected to the first gas storage tank. The first solenoid valve is mounted on the first pipe body and is used to control the opening and closing of the first pipe body; The first telescopic tube is disposed in the second cavity, and one end of the first telescopic tube is connected to the other end of the first tube body; The second tube extends through the piston, with one end of the second tube connected to the other end of the first telescopic tube, and the other end of the second tube connected to the first chamber.

[0012] In one embodiment, the linkage control mechanism further includes a backup drive mechanism, which includes a rod, a toothed plate, a gear, and a drive component. The top of the rod is connected to the dynamic conductive component; The top end of the toothed plate is connected to the bottom end of the rod, and the side wall of the toothed plate is provided with locking teeth; The gear meshes with the locking teeth; The driving component has an output end, which is connected to a gear transmission; it is used to drive the gear to rotate, thereby driving the gear plate, rod body and moving conductive component to move up and down, so as to realize the opening and closing linkage between the moving conductive component and the stationary conductive component.

[0013] In one embodiment, the driving element is an electric driving element, which includes a transmission rod and a micro motor; One end of the transmission rod is connected to the gear; The micro motor is fixed inside the mechanism box and connected to the other end of the transmission rod; it is used to drive the gear to rotate through the transmission rod.

[0014] In one embodiment, the driving element is a manual driving element, which includes a lever and a handwheel; One end of the rotating rod is connected to the gear, and the other end passes through the mechanism box and is rotatably connected to the mechanism box; The handwheel is fixed to the other end of the rotating rod and is used to drive the gear to rotate via the rotating rod.

[0015] In one embodiment, the linkage control mechanism further includes a cable connection assembly, which includes a conductive tube and a connector; The conductive tube is disposed in the arc-extinguishing chamber, and the moving conductive component is inserted into the inside of the conductive tube and slides against the inner wall of the conductive tube while maintaining conductive communication. One end of the connector is fixedly connected to the conductive tube, and the other end extends out of the arc-extinguishing chamber for connecting an external wire.

[0016] Compared with the prior art, this application has the following beneficial technical effects: By setting a piston in the inner cavity of the arc-extinguishing chamber, an independently sealed first chamber and a second chamber are formed. The static conductive component is set in the first chamber, and the dynamic conductive component is assembled on the piston and moves synchronously with the piston. When the circuit is opened, the first inflation mechanism fills the first chamber with high-pressure inert gas, pushing the piston to move towards the second chamber, causing the dynamic conductive component to move away from the static conductive component. When the circuit is closed, the second inflation mechanism fills the second chamber with high-pressure inert gas, pushing the piston towards the first chamber, causing the dynamic conductive component to connect with the static conductive component and conduct electricity. There is no spring involved throughout the process, avoiding spring fatigue failure and ensuring stable and reliable opening and closing.

[0017] It should be understood that the content described in this application summary is not intended to limit the key or important features of the embodiments of this application, nor is it intended to restrict the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0018] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A schematic diagram of the linkage control mechanism in an embodiment of this application is shown; Figure 2 A cross-sectional view of the linkage control mechanism in an embodiment of this application is shown; Figure 3 A schematic diagram of the arc-extinguishing chamber and its internal structure in an embodiment of this application is shown; Figure 4 This paper shows a front sectional view of the arc-extinguishing chamber and its internal structure in an embodiment of this application; Figure 5 A schematic diagram of the sealing cavity and its internal structure in an embodiment of this application is shown; Figure 6 A first schematic diagram of the electric drive component and its connection structure in an embodiment of this application is shown; Figure 7 A second schematic diagram of the electric drive component and its connection structure in an embodiment of this application is shown; Figure 8 A schematic diagram of the manual drive component and its connection structure in an embodiment of this application is shown; in; 1. Arc-extinguishing chamber; 11. Piston; 12. First chamber; 13. Second chamber; 2. First inflation mechanism; 21. Telescopic pipe; 211. First pipe body; 212. First solenoid valve; 213. First telescopic pipe; 214. Second pipe body; 22. First pneumatic mechanism; 221. First air storage tank; 222. First air pump; 3. Second inflation mechanism; 4. First exhaust pipe; 5. Second exhaust pipe; 6. Mechanism housing; 61. Sealed cavity; 7. Backup drive mechanism; 71. Rod body; 72. Gear plate; 73. Gear; 74. Drive component; 8. Cable connection assembly; 81. Conductive tube; 82. Connector. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0021] This integrated primary and secondary circuit breaker linkage control mechanism forms an independently sealed first chamber 12 and a second chamber 13 by setting a piston 11 inside the arc-extinguishing chamber 1. The static conductive component is located in the first chamber 12, and the dynamic conductive component is mounted on the piston 11 and moves with it. The air-filling mechanism inflates and drives the opening and closing of the circuit breaker. There are no springs throughout the entire process, which avoids spring fatigue and ensures stable and reliable opening and closing. This solves the problem that existing circuit breakers generally use spring energy storage drive mechanisms, where metal springs are prone to elastic fatigue and stress attenuation due to long-term reciprocating force, resulting in reduced driving force, unstable opening and closing actions, and incomplete stroke, which seriously affects the operational reliability and stability of the circuit breaker.

[0022] Please see Figures 1-8 As shown, this application provides a primary and secondary integrated circuit breaker linkage control mechanism for controlling the opening and closing linkage of the moving conductive component and the stationary conductive component, including an arc-extinguishing chamber 1, a first inflation mechanism 2 and a second inflation mechanism 3; The arc-extinguishing chamber 1 has an internal cavity with a sealed structure, which effectively isolates external dust, moisture, and debris, ensuring the stable operation of internal components. A piston 11 is installed within the internal cavity, slidingly fitting against the inner wall of the arc-extinguishing chamber 1. A sealing ring is provided around the piston 11 to enhance the seal between the piston 11 and the inner wall of the cavity, preventing leakage of inert gas within the cavity. The piston 11 divides the internal cavity into a first chamber 12 and a second chamber 13. The first chamber 12 and the second chamber 13 are independent and not interconnected, and are used respectively to drive the gas during the opening and closing operations.

[0023] The static conductive component is installed in the first chamber 12. The static conductive component consists of a static conductive rod and a static contact. The static conductive rod is fixedly connected to the inner wall of the arc-extinguishing chamber 1. The surface of the static contact is plated with a silver alloy layer to improve conductivity and wear resistance. The static contact is fixed at the inner end of the static conductive rod and located in the middle of the first chamber 12. Its position corresponds to the moving conductive component. It is used to connect with the moving conductive component to conduct electricity when the circuit is closed, so as to realize the connection of the circuit.

[0024] The moving conductive component is mounted on the piston 11 and fixedly connected to the piston 11. It can move synchronously with the piston 11. The moving conductive component includes a moving contact and a moving conductive rod. The moving conductive rod is fixed to the piston 11 and passes through the piston 11. The moving contact is fixed at the top of the moving conductive rod and located in the first chamber 12. The mating surface between the moving contact and the stationary contact adopts a structural design with excellent conductivity to ensure the conductivity stability after mating.

[0025] The first gas-filling mechanism 2 penetrates the arc-extinguishing chamber 1 and the piston 11 and is connected to the first chamber 12. Sealing elements are provided at the penetration points of the first gas-filling mechanism 2, the arc-extinguishing chamber 1, and the piston 11 to prevent inert gas leakage from the penetration gap. The first gas-filling mechanism 2 is used to fill the first chamber 12 with inert gas. The pressure generated by the inert gas pushes the piston 11 away from the first chamber 12, thereby moving the moving conductive component away from the stationary conductive component, achieving the opening action. The inert gas used is nitrogen or argon, which has chemically stable, non-conductive, non-flammable, and non-explosive properties. It can effectively drive the piston 11 and also extinguish the arc, preventing the electric arc generated during opening from damaging the components.

[0026] The second inflation mechanism 3 penetrates the arc-extinguishing chamber 1 and communicates with the second chamber 13. A seal is provided at the penetration point between the second inflation mechanism 3 and the arc-extinguishing chamber 1 to ensure sealing performance. The structure of the second inflation mechanism 3 can be completely identical to that of the first inflation mechanism 2. It is used to fill the second chamber 13 with inert gas. The pressure generated by the inert gas pushes the piston 11 to move closer to the first chamber 12, thereby driving the moving conductive component closer to the stationary conductive component, realizing the closing action. The second inflation mechanism 3 and the first inflation mechanism 2 work together to control the opening and closing actions respectively, ensuring the synchronicity and reliability of the actions.

[0027] Through the sealing design of the arc-extinguishing chamber 1 and the separating effect of the piston 11, the first chamber 12 and the second chamber 13 are independently sealed. Combined with the gas drive of the first inflation mechanism 2 and the second inflation mechanism 3, the traditional spring drive method is replaced, avoiding the problem of opening and closing failure caused by spring fatigue. At the same time, through the cooperation of the piston 11 and the sealing element, the inert gas is ensured to not leak, ensuring the stability and reliability of the opening action, and realizing the precise opening and closing linkage of the moving conductive component and the stationary conductive component.

[0028] Please see Figures 2-5As shown, in one embodiment, the linkage control mechanism further includes a first exhaust pipe 4 and a second exhaust pipe 5: The first exhaust pipe 4 passes through the arc-extinguishing chamber 1 and the piston 11, and is connected to the first chamber 12. Sealing structures are provided at the penetration points of the first exhaust pipe 4, the arc-extinguishing chamber 1, and the piston 11 to prevent gas leakage. The diameter of the first exhaust pipe 4 is adapted to the exhaust requirements of the first chamber 12, enabling rapid discharge of inert gas from the chamber. One end extends into the first chamber 12, with a dust filter at the end to prevent impurities from entering the pipe and causing blockage. The other end connects to an external pre-set structure. During the closing process, when the second inflation mechanism 3 fills the second chamber 13 with inert gas and the piston 11 moves towards the first chamber 12, the compressed inert gas in the first chamber 12 is rapidly discharged, preventing the gas in the first chamber 12 from generating a reaction force that would affect the smoothness of the closing operation.

[0029] The second exhaust pipe 5 passes through the arc-extinguishing chamber 1 and is connected to the second chamber 13. A sealing structure is provided at the penetration point of the second exhaust pipe 5 and the arc-extinguishing chamber 1 to ensure sealing performance. The diameter of the second exhaust pipe 5 is adapted to the exhaust requirements of the second chamber 13. One end extends into the interior of the second chamber 13 and is equipped with a dust filter to prevent impurities from clogging the pipe. The other end is connected to an external preset structure. During the opening process, when the first air-charging mechanism 2 charges inert gas into the first chamber 12 and the piston 11 moves away from the first chamber 12, the inert gas squeezed in the second chamber 13 is quickly discharged to avoid the gas in the second chamber 13 generating a reaction force that would affect the smoothness of the opening action.

[0030] By adding a first exhaust pipe 4 and a second exhaust pipe 5, the inert gas in the corresponding chamber is quickly discharged during the opening and closing process, effectively eliminating the gas reaction force in the chamber, ensuring that the piston 11 drives the conductive component to move smoothly, and improving the response speed and smoothness of the opening and closing action.

[0031] Please see Figures 1-5 As shown, in one embodiment, the linkage control mechanism further includes a mechanism box 6; The mechanism housing 6 is made of high-strength insulating material, possessing excellent sealing and protective properties. It effectively isolates the internal components from dust, moisture, impurities, and electromagnetic interference, providing a stable installation and operating environment. The outer shell of the mechanism housing 6 is reinforced with ribs to enhance its structural strength and prevent damage to internal components from external impacts. The mechanism housing 6 contains a sealed cavity 61, a closed structure used to store inert gas, enabling its recovery and recycling.

[0032] The upper surface of the mechanism box 6 is provided with several connection ports, which can be circular through holes that match the arc-extinguishing chamber 1. The arc-extinguishing chamber 1 is fixedly installed on the mechanism box 6, completely sealing the connection ports. The connection between the arc-extinguishing chamber 1 and the mechanism box 6 adopts a sealed connection method to ensure that there is no gas leakage at the connection and to ensure the airtightness of the sealing cavity 61.

[0033] The first exhaust pipe 4, the second exhaust pipe 5, the first inflation mechanism 2, and the second inflation mechanism 3 are all connected to the sealed cavity 61, forming a complete inert gas circulation loop.

[0034] Specifically, the inert gases discharged from the first exhaust pipe 4 and the second exhaust pipe 5 are all stored in the sealed cavity 61. The suction ends of the first inflation mechanism 2 and the second inflation mechanism 3 draw inert gases from the sealed cavity 61 and then inject them into the corresponding chambers to achieve closed-loop recycling of inert gases.

[0035] By setting up mechanism box 6 and the internal sealed cavity 61, the inert gas is recycled in a closed loop, avoiding waste of inert gas and reducing operating costs. The insulation, sealing and protection design of mechanism box 6 not only protects the internal core components such as arc extinguishing chamber 1 and gas filling mechanism, but also improves the operational safety and stability of the entire mechanism.

[0036] Please see Figures 2-5 As shown, in one embodiment, the first inflation mechanism 2 includes a retractable tube 21 and a first pneumatic mechanism 22; The retractable conduit 21 passes through the sealing cavity 61, the arc-extinguishing chamber 1, and the piston 11. Sealing elements are provided at the points where the retractable conduit 21 penetrates the sealing cavity 61, the arc-extinguishing chamber 1, and the piston 11 to ensure sealing performance and prevent inert gas leakage. One end of the retractable conduit 21 is placed inside the sealing cavity 61 and communicates with its interior for extracting inert gas from the sealing cavity 61; the other end extends into the first chamber 12 for injecting inert gas into the first chamber 12, driving the piston 11 to move.

[0037] The telescopic pipe 21 can adapt to the reciprocating motion of the piston 11. When the piston 11 moves, the telescopic pipe 21 can extend and retract synchronously, preventing the pipe from being pulled or damaged due to the movement of the piston 11, and ensuring the continuity and stability of gas delivery. The telescopic pipe 21 is made of corrosion-resistant, high-strength flexible material, which can withstand the impact of high-pressure inert gas, and also has good sealing performance.

[0038] The first pneumatic mechanism 22 is disposed within the sealed cavity 61 and connected to the telescopic pipe 21. The first pneumatic mechanism 22 is fixedly installed on the inner wall of the sealed cavity 61, featuring a compact structure that does not occupy additional space and avoids the influence of the external environment on its operation. The first pneumatic mechanism 22 is used to stably deliver inert gas from the sealed cavity 61 to the first chamber 12 via the telescopic pipe 21, providing stable gas power for the tripping action. The connection between the first pneumatic mechanism 22 and the inner wall of the sealed cavity 61 uses anti-vibration pads to reduce vibration generated during operation and prevent vibration from affecting the operational stability of other components.

[0039] The first inflation mechanism 2, through the cooperation of the retractable pipe 21 and the first pneumatic mechanism 22, achieves a stable delivery of inert gas from the sealed cavity 61 to the first chamber 12. The retractable pipe 21 adapts to the reciprocating motion of the piston 11, avoiding pipe damage and ensuring the continuity of gas delivery. The first pneumatic mechanism 22 is located inside the sealed cavity 61 and is protected by the mechanism housing 6, making its operation more stable. The anti-vibration pads reduce the impact of vibration. The corrosion-resistant and high-strength design of the retractable pipe 21 ensures that it can withstand high pressure and long-term use, extending its service life. At the same time, in coordination with the preceding sealed cavity 61 and first chamber 12, it ensures the stability and reliability of the gas drive during the opening action, further improving the opening response speed and action accuracy of the mechanism.

[0040] Please see Figure 5 As shown, in one embodiment, the first pneumatic mechanism 22 includes a first air tank 221 and a first air pump 222; The first gas storage tank 221 is located within the sealed cavity 61. The first gas storage tank 221 employs a high-strength sealing structure, capable of withstanding high pressure, and is used to store inert gas, providing a stable gas source for the gas delivery of the first filling mechanism 2. The first gas storage tank 221 is equipped with a pressure gauge and a safety valve. The pressure gauge is used to monitor the internal pressure in real time, and the safety valve is used to automatically release pressure when the internal pressure exceeds a preset value, preventing damage to the first gas storage tank 221 due to high pressure and ensuring safe operation.

[0041] The first air pump 222 is disposed within the sealed cavity 61 and connected to the first air storage tank 221. The first air pump 222 is fixedly installed on the inner wall of the sealed cavity 61, and the connection between the first air storage tank 221 and the first air storage tank 221 is sealed to prevent gas leakage. The first air pump 222 is used to draw in the inert gas in the sealed cavity 61 and send it into the first air storage tank 221, while pressurizing the inert gas in the first air storage tank 221 to maintain the inert gas in the first air storage tank 221 at a high pressure, ensuring that the inert gas filled into the first chamber 12 can generate sufficient pressure to push the piston 11 to drive the conductive component to achieve a rapid tripping action.

[0042] The first gas storage tank 221 and the first air pump 222 work together to provide a stable and high-pressure inert gas source for the first air filling mechanism 2, ensuring sufficient gas driving force during the opening action, pushing the piston 11 to move quickly and realize the rapid opening action.

[0043] Please see Figure 4 As shown, in one embodiment, the telescopic pipe 21 includes a first pipe body 211, a first solenoid valve 212, a first telescopic pipe 213, and a second pipe body 214. The first pipe body 211 penetrates the sealed cavity 61 and the arc-extinguishing chamber 1. One end of the first pipe body 211 is connected to the first gas storage tank 221, and the connection is sealed to prevent leakage of high-pressure inert gas. It is used to transport the high-pressure inert gas in the first gas storage tank 221 to the subsequent pipeline. The first pipe body 211 is made of high-strength material and can withstand the impact of high-pressure inert gas to prevent pipeline deformation or rupture.

[0044] The first solenoid valve 212 is mounted on the first pipe body 211 and is sealed to the first pipe body 211. It is used to precisely control the opening and closing of the first pipe body 211, thereby controlling the delivery and stopping of inert gas, realizing precise control of the tripping action, and avoiding abnormal tripping action caused by misdelivery of inert gas.

[0045] The first telescopic tube 213 is disposed within the second chamber 13. The first telescopic tube 213 employs a foldable or stretchable sealing structure to accommodate the reciprocating motion of the piston 11, preventing damage to the pipeline due to piston 11 movement. One end of the first telescopic tube 213 is connected to the other end of the first tube body 211, with the connection sealed. It receives the inert gas transported by the first tube body 211 and transfers it to the second tube body 214. The telescopic portion of the first telescopic tube 213 is equipped with sealing pleats, ensuring smooth telescopic movement while preventing gas leakage.

[0046] The second tube 214 penetrates the piston 11. A seal is provided at the penetration point between the second tube 214 and the piston 11 to ensure sealing performance and prevent inert gas in the first chamber 12 from leaking into the second chamber 13. One end of the second tube 214 is connected to the other end of the first telescopic tube 213, and the connection is sealed. The other end is connected to the first chamber 12 to inject inert gas into the first chamber 12, thereby pushing the piston 11 to move. The second tube 214 moves synchronously with the piston 11.

[0047] The retractable pipeline 21, through the coordinated operation of various components, enables precise and stable delivery of inert gas from the first gas storage tank 221 to the first chamber 12; the setting of the first solenoid valve 212 enables precise control of gas delivery and improves the controllability of the tripping action.

[0048] Please see Figures 2-5As shown, in one embodiment, the first exhaust pipe 4 has the same structure as the retractable pipe 21, including a third pipe body, a second solenoid valve, a second telescopic pipe, and a fourth pipe body; the third pipe body passes through the sealing cavity 61 and the arc-extinguishing chamber 1, and the connection part adopts a sealed connection. The third pipe body is connected to the sealing cavity 61. The second solenoid valve is set on the third pipe body and is used to precisely control the opening and closing of the third pipe body. The two ends of the second telescopic pipe are connected to the third pipe body and the fourth pipe body respectively. The fourth pipe body passes through the piston 11 and its top end is connected to the first chamber 12. The second inflation mechanism 3 includes a first fixed pipeline and a second pneumatic mechanism. The first fixed pipeline includes a fifth pipeline and a third solenoid valve. The fifth pipeline passes through the sealing cavity 61 and the arc-extinguishing chamber 1, with its bottom end extending into the sealing cavity 61 and its top end connected to the second chamber 13. The connection is sealed. The third solenoid valve is located on the fifth pipeline and is used to precisely control the opening and closing of the fifth pipeline. The second pneumatic mechanism has the same structure as the first pneumatic mechanism 22, including a second gas storage tank and a second air pump. Both the second gas storage tank and the second air pump are located in the sealing cavity 61. The second air pump, the second gas storage tank, and the fifth pipeline are connected in sequence. The second gas storage tank is used to store inert gas. The second air pump is used to draw in the inert gas in the sealing cavity 61 and send it into the second gas storage tank. At the same time, it pressurizes the inert gas in the second gas storage tank to maintain a high pressure state, ensuring that the inert gas injected into the second chamber can generate sufficient pressure to push the piston 11 to drive the conductive component to achieve a rapid closing action. The second exhaust pipe 5 has the same structure as the first fixed pipe, including a sixth pipe and a fourth solenoid valve. The sixth pipe passes through the sealing cavity 61 and the arc-extinguishing chamber 1, with its bottom end connected to the sealing cavity 61 and its top end connected to the second chamber 13. The connection is sealed. The fourth solenoid valve is installed on the sixth pipe to precisely control the opening and closing of the sixth pipe.

[0049] Please see Figures 2-8 As shown, in one embodiment, the linkage control mechanism also includes a backup drive mechanism 7. The backup drive mechanism 7 serves as a backup guarantee for the gas drive of the preceding inflation mechanism. When the inflation mechanism fails and cannot work normally, the opening and closing linkage of the moving conductive component and the stationary conductive component can be realized through the backup drive mechanism 7 to avoid the overall failure of the mechanism and improve the reliability and fault tolerance of the mechanism.

[0050] The backup drive mechanism 7 includes a rod 71, a toothed plate 72, a gear 73, and a drive component 74. All components are made of high-strength wear-resistant materials and are assembled inside the mechanism box 6, protected by the mechanism box 6 to avoid the influence of the external environment.

[0051] Specifically, the top of the rod 71 is fixedly connected to the moving conductive component, ensuring a secure connection and enabling synchronous movement of the moving conductive component. The rod 71 is made of high-strength material, possessing excellent rigidity and wear resistance to prevent bending or damage during movement. A guide sleeve is fitted onto the outer side of the rod 71, fixed to the inner wall of the mechanism box 6, to guide the movement of the rod 71, ensuring it moves in a straight line and preventing deviations in the connection between the moving and stationary conductive components.

[0052] The top end of the toothed plate 72 is fixedly connected to the bottom end of the rod 71, and the connection is firm, allowing it to move synchronously with the rod 71. The side wall of the toothed plate 72 is provided with locking teeth, which are evenly distributed and whose tooth shape is adapted to the gear 73, ensuring smooth and stable meshing transmission with the gear 73.

[0053] Gear 73 meshes with the toothed gear. Gear 73 is made of high-strength, wear-resistant material, and its meshing surface is precision-machined to ensure smooth and slip-free transmission, stably transmitting the power of the drive component 74 to the toothed plate 72. Gear 73 is mounted on a fixed shaft, which is rotatably connected to the inner wall of the mechanism housing 6. Bearings are provided at the connection between the fixed shaft and gear 73 to reduce rotational friction, ensure smooth rotation of gear 73, and reduce wear.

[0054] The drive unit 74 has an output end, which is connected to the gear 73 in a secure and stable manner, ensuring stable rotation of the gear 73. The drive unit 74 drives the gear 73 to rotate. Through the meshing transmission between the gear 73 and the toothed plate 72, it drives the toothed plate 72, the rod 71, and the moving conductive component to move up and down, thereby achieving the opening and closing linkage between the moving and stationary conductive components, replacing the air-filling mechanism to complete the opening or closing action. The drive unit 74 is fixedly connected to the inner wall of the mechanism housing 6, and the connection point is equipped with anti-vibration pads to reduce vibrations generated during operation and prevent them from affecting other components.

[0055] By adding a utility drive mechanism 7, a dual guarantee is provided for the opening and closing linkage of the mechanism, avoiding the failure of the inflation mechanism to work properly, and improving the reliability and fault tolerance of the mechanism.

[0056] In one embodiment, gear 73 is a complete gear that is always meshed with toothed plate 72. When inert gas pushes piston 11 to move, moving conductive component, rod 71 and toothed plate 72 move up and down synchronously. Toothed plate 72 drives gear 73 to rotate, and gear 73 drives the output end of drive member 74 to rotate synchronously. The output end of drive member 74 can rotate freely, so as not to affect the up and down movement of moving conductive component, rod 71 and toothed plate 72.

[0057] Please see Figures 6-8As shown, in one embodiment, the gear 73 has a meshing notch at one end near the tooth plate 72, and the central angle of the meshing notch is equal to the central angle corresponding to N teeth on the gear 73, where N is a positive integer; like Figure 6 As shown, in its natural state, the meshing notch faces the toothed plate 72, and the gear 73 does not mesh with or contact the toothed plate 72; when the inert gas drives the piston 11 to move, the moving conductive component, the rod 71 and the toothed plate 72 move synchronously, and the output end of the gear 73 and the drive component 74 does not move with it and does not interfere. like Figure 7 As shown, when the first inflation mechanism 2 or the second inflation mechanism 3 fails and the backup drive mechanism 7 is activated, the drive component 74 drives the gear 73 to rotate. After the gear 73 rotates through the angle corresponding to N gear teeth, the gear teeth mesh precisely with the gear plate 72 to realize the backup drive transmission.

[0058] Through the meshing transmission between gear 73 and toothed plate 72, toothed plate 72, rod 71 and moving conductive component are driven to move up and down, thereby realizing the opening and closing linkage between moving conductive component and stationary conductive component, replacing the air-filling mechanism to complete the opening or closing action.

[0059] Please see Figure 6 and Figure 7 As shown, in one embodiment, the drive element 74 is an electric drive element, which includes a transmission rod and a micro motor; One end of the transmission rod is fixedly connected to gear 73, ensuring a secure connection and allowing it to rotate synchronously with gear 73, simultaneously transmitting power from the micro motor to gear 73. The transmission rod is made of high-strength material, possessing excellent rigidity to prevent bending or deformation during transmission, thus ensuring the stability of power transmission.

[0060] The micro motor is fixedly mounted inside the mechanism housing 6 and securely connected to the inner wall of the housing 6. It is firmly installed and protected by the housing 6, preventing external environmental influences on its operation. The micro motor is fixedly connected to the other end of the transmission rod, ensuring reliable transmission at the connection point. It drives the gear 73 to rotate via the transmission rod, thereby driving the gear plate 72, the rod body 71, and the moving conductive components to achieve opening and closing linkage. The micro motor is a DC motor, characterized by its small size, high power, and fast response speed. Its control terminal is linked with the circuit breaker's control system, enabling automated backup drive.

[0061] Please see Figure 8 As shown, in one embodiment, the drive member 74 is a manual drive member, which includes a lever and a handwheel; One end of the rotating rod is fixedly connected to gear 73, ensuring a secure connection and allowing it to rotate synchronously with gear 73 while transmitting the force of the handwheel to gear 73. The rotating rod is made of high-strength material, possessing excellent rigidity and wear resistance to prevent bending or damage during manual operation. The other end of the rotating rod passes through mechanism housing 6 and is rotatably connected to it. A seal is provided at the rotatable connection point to ensure smooth rotation of the rotating rod while preventing leakage of inert gas from the sealed cavity 61.

[0062] The handwheel is fixed to the other end of the lever, and the surface of the handwheel has anti-slip texture, which makes it easy for the operator to hold and rotate, improving the convenience of operation.

[0063] The manual drive mechanism has a simple structure and high reliability. It can provide backup drive function without power supply, making it suitable for a variety of complex scenarios and further improving the fault tolerance and applicability of the mechanism.

[0064] Please see Figures 2-4 As shown, in one embodiment, the linkage control mechanism further includes a cable connection assembly 8, which is used to realize the conductive connection between the moving conductive assembly and the external circuit to ensure the normal conduction of the circuit. The cable connection assembly 8 includes a conductive tube 81 and a connector 82. Each component is made of a material with high conductivity to ensure conductivity and has good sealing performance to prevent inert gas leakage.

[0065] The conductive tube 81 is disposed inside the arc-extinguishing chamber 1 and fixedly connected to the inner wall of the arc-extinguishing chamber 1. The conductive tube 81 is made of a high-conductivity material, which can achieve good conductivity. The moving conductive rod of the moving conductive component is inserted into the conductive tube 81 and slides against the inner wall of the conductive tube 81. This ensures the smooth reciprocating motion of the moving conductive component with the piston 11 and maintains stable conductive continuity, avoiding circuit failure due to poor contact. The inner wall of the conductive tube 81 is provided with a conductive lubricating layer, which reduces the friction between the moving conductive component and the inner wall of the conductive tube 81, which facilitates the movement of the moving conductive component, improves conductivity, and reduces wear.

[0066] One end of connector 82 is fixedly connected to conductive tube 81, and the connection point adopts a conductive connection method to ensure good conductivity and avoid excessive contact resistance. The other end of connector 82 extends out of arc-extinguishing chamber 1 for connecting external wires, realizing the conduction between the moving conductive component and the external circuit, and providing circuit connection protection for the normal operation of the circuit breaker. Connector 82 adopts a terminal block structure, which facilitates the connection and disconnection of external wires.

[0067] By adding cable connection component 8, a stable conductive connection between the moving conductive component and the external circuit is achieved, ensuring that the circuit breaker can be properly connected to the circuit and realize its control function.

[0068] The working process of the primary and secondary integrated circuit breaker linkage control mechanism provided in this application is as follows: Before use, the first air pump 222 is started, drawing inert gas from the sealed cavity 61 and sending it into the first gas storage tank 221 for pressurization and storage. The second air pump is started, drawing inert gas from the sealed cavity 61 and sending it into the second gas storage tank for pressurization and storage. The sealed cavity 61 is in a low-pressure state. When the circuit breaker is tripped, the first solenoid valve 212 and the fourth solenoid valve are turned on, while the second solenoid valve and the third solenoid valve are turned off. The high-pressure inert gas in the first gas storage tank 221 is injected into the first chamber 12 through the first pipe 211, the first telescopic pipe 213, and the second pipe 214. Under the action of gas pressure, the piston 11 is pushed to move towards the second chamber 13. The piston 11 drives the moving conductive component to move synchronously, so that the moving conductive component is away from the stationary conductive component, thereby achieving tripping. At this time, the gas in the second chamber 13 is discharged into the sealing chamber 61 through the second exhaust pipe 5 for recovery.

[0069] When the circuit is closed, the first solenoid valve 212 and the fourth solenoid valve are closed, the second solenoid valve and the third solenoid valve are open, the second inflation mechanism 3 is activated, and high-pressure inert gas is injected into the second chamber 13, which pushes the piston 11 to move towards the first chamber 12, causing the moving conductive component to connect with the stationary conductive component and achieve circuit closing; at this time, the gas in the first chamber 12 is discharged to the sealing chamber 61 for recovery through the first exhaust pipe 4. If the inflation mechanism malfunctions, the backup drive mechanism 7 can be activated. The drive gear 73 rotates, driving the toothed plate 72, rod 71 and moving conductive components to replace the inflation mechanism in completing the opening and closing actions, ensuring stable operation.

[0070] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A primary and secondary integrated circuit breaker linkage control mechanism, used to control the opening and closing linkage of the moving conductive component and the stationary conductive component, characterized in that, include: An arc-extinguishing chamber (1) has an inner cavity inside, and a piston (11) is provided inside the inner cavity. The piston (11) divides the inner cavity into a first chamber (12) and a second chamber (13). The static conductive component is disposed in the first chamber (12), and the dynamic conductive component is mounted on the piston (11) and moves synchronously with the piston (11). The first gas filling mechanism (2) passes through the arc-extinguishing chamber (1) and the piston (11) and is connected to the first chamber (12); it is used to fill the first chamber (12) with inert gas, push the piston (11) to drive the moving conductive component away from the stationary conductive component, and realize the opening action; The second gas filling mechanism (3) passes through the arc-extinguishing chamber (1) and is connected to the second chamber (13); it is used to fill the second chamber (13) with inert gas, push the piston (11) to drive the moving conductive component to approach the stationary conductive component, and realize the closing action.

2. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 1, characterized in that, Also includes: The first exhaust pipe (4) passes through the arc-extinguishing chamber (1) and the piston (11) and is connected to the first chamber (12), and is used to discharge the inert gas in the first chamber (12) during the closing process; The second exhaust pipe (5) passes through the arc-extinguishing chamber (1) and is connected to the second chamber (13), and is used to discharge the inert gas in the second chamber (13) during the circuit breaker opening process.

3. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 2, characterized in that, It also includes a mechanism box (6), which has a sealed cavity (61) inside. The arc-extinguishing chamber (1) is fixedly installed on the mechanism box (6). The first exhaust pipe (4), the second exhaust pipe (5), the first inflation mechanism (2) and the second inflation mechanism (3) are all connected to the sealing cavity (61), thereby realizing the closed-loop recycling of inert gas.

4. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 3, characterized in that, The first inflation mechanism (2) includes: A retractable conduit (21) passes through the sealed cavity (61), the arc-extinguishing chamber (1), and the piston (11). One end of the retractable conduit (21) is placed inside the sealed cavity (61), and the other end extends into the first chamber (12). The first pneumatic mechanism (22) is located in the sealed cavity (61) and connected to the retractable pipeline (21) for transporting the inert gas in the sealed cavity (61) to the first chamber (12) through the retractable pipeline (21).

5. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 4, characterized in that, The first pneumatic mechanism (22) includes: The first gas storage tank (221) is disposed in the sealed cavity (61) and is used to store inert gas; The first air pump (222) is located in the sealed cavity (61) and connected to the first air tank (221). It is used to send the inert gas in the sealed cavity (61) into the first air tank (221) and keep the inert gas inside the first air tank (221) under high pressure.

6. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 5, characterized in that, The retractable conduit (21) includes: The first tube (211) penetrates the sealed cavity (61) and the arc-extinguishing chamber (1), and one end of the first tube (211) is connected to the first gas storage tank (221); The first solenoid valve (212) is mounted on the first pipe body (211) and is used to control the opening and closing of the first pipe body (211); The first telescopic tube (213) is disposed in the second chamber (13), and one end of the first telescopic tube (213) is connected to the other end of the first tube body (211); The second tube (214) passes through the piston (11). One end of the second tube (214) is connected to the other end of the first telescopic tube (213), and the other end of the second tube (214) is connected to the first chamber (12).

7. The primary and secondary integrated circuit breaker linkage control mechanism according to any one of claims 3-6, characterized in that, It also includes a backup drive mechanism (7), which includes: The top of the rod (71) is connected to the moving conductive component; The toothed plate (72) is connected at its top end to the bottom end of the rod (71), and the side wall of the toothed plate (72) is provided with locking teeth; Gear (73) meshes with the locking teeth; The driving component (74) has an output end, which is connected to the gear (73) for transmission; it is used to drive the gear (73) to rotate, thereby driving the tooth plate (72), the rod (71) and the moving conductive component to perform lifting and lowering movements, so as to realize the opening and closing linkage between the moving conductive component and the stationary conductive component.

8. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 7, characterized in that, The drive unit (74) is an electric drive unit, and the electric drive unit includes; One end of the transmission rod is connected to the gear (73); A micro motor is fixed inside the mechanism box (6) and connected to the other end of the transmission rod; it is used to drive the gear (73) to rotate through the transmission rod.

9. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 7, characterized in that, The drive unit (74) is a manual drive unit, and the manual drive unit includes; The rotating rod is connected to the gear (73) at one end and passes through the mechanism box (6) at the other end, and is rotatably connected to the mechanism box (6); A handwheel is fixed to the other end of the rotating rod and is used to drive the gear (73) to rotate via the rotating rod.

10. The primary and secondary integrated circuit breaker linkage control mechanism according to claim 1, characterized in that, It also includes a cable connection assembly (8), which includes: The conductive tube (81) is disposed in the arc-extinguishing chamber (1), and the moving conductive component is inserted into the inside of the conductive tube (81) and slides against the inner wall of the conductive tube (81) while maintaining conductive communication. The connector (82) is fixedly connected to the conductive tube (81) at one end and extends out of the arc-extinguishing chamber (1) at the other end for connecting external wires.

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