Reclosing switch control mechanism with precise triggering function

Abstract

The invention discloses a reclosing switch control mechanism with an accurate triggering function, and relates to the technical field of low-voltage electric appliances. Comprising a linkage assembly, a circuit breaking device and a short circuit protection mechanism, the linkage assembly comprises a permanent magnet moving core, a self-locking assembly and an opening control, and the permanent magnet moving core is used for providing axial driving force. Stable and controllable axial driving force is provided through the permanent magnet moving core, a magnet on the self-locking assembly is driven to move in the axial direction, the magnetic attraction type tight conduction state of the magnetic tripping piece and the wire outlet copper bar is matched, and the self-locking assembly presses the linkage piece to drive the limiting frame to form a reliable locking state. And a multi-stage linkage rapid transmission state is realized through the extension plate, the propping rod and the shifting piece after the magnetic tripping piece rapidly acts in a short circuit, so that the problems that a traditional reclosing switch is low in opening and closing triggering precision and low in response speed, millisecond tripping cannot be realized in a short circuit fault, and mistaken opening is easily caused by external vibration and current fluctuation after closing are solved.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical technology, and in particular to a reclosing switch control mechanism with precise triggering. Background Technology

[0002] In the operation of modern power distribution systems, the reclosing switch control mechanism, as a key control element, plays an indispensable role in line on / off control, fault protection, and power supply continuity. Its working principle is based on the combination of electromagnetic drive and mechanical linkage. The electromagnetic component outputs driving force, which in turn drives the mechanical transmission structure to perform the opening and closing operations of the switch. When a momentary fault occurs and the line is disconnected, it can automatically complete the reclosing operation, restoring normal power supply. Reclosing switch control mechanisms are widely used in many fields such as residential power consumption, industrial power distribution, and municipal power supply, and are an important component ensuring the stable and safe operation of the power distribution system.

[0003] Currently, although various types of reclosing switch control mechanisms exist in the market, significant technical bottlenecks remain. Some products employ purely mechanical transmission structures, resulting in low triggering accuracy and slow response speed. When a short-circuit fault occurs, rapid tripping is not achieved, easily leading to an expansion of the fault range. Others use simple electromagnetic drive structures, where the magnetic attraction between the magnetic trip piece and the outgoing copper busbar is not stable enough. After closing, they are susceptible to external vibrations and current fluctuations, leading to false tripping and severely impacting power supply stability. Still others have highly integrated components, with circuit breaker protection parts often being integrated into a single package. The protective shell is fixedly connected to the body, requiring complete disassembly and replacement of internal transmission components when wear occurs, increasing maintenance costs and operational difficulty. Furthermore, most reclosing switches require manual intervention to reset and close after fault clearance, resulting in low automation and failing to meet the unattended operation requirements of modern power distribution systems. Summary of the Invention

[0004] The purpose of this invention is to provide a reclosing switch control mechanism with precise triggering, which solves the technical problems of low control accuracy, slow response, and easy erroneous tripping of the reclosing switch.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a reclosing switch control mechanism with precise triggering, comprising a linkage component, a circuit breaker, and a short-circuit protection mechanism. The linkage component includes a permanent magnet moving core, a self-locking component, and a tripping control. The permanent magnet moving core provides axial driving force, the self-locking component cooperates with the permanent magnet moving core to achieve opening and closing actions, and the tripping control drives the linkage component to reset to release the limit on the self-locking component. The circuit breaker and the short-circuit protection mechanism work together to achieve rapid tripping under short-circuit fault conditions.

[0006] Preferably, the linkage assembly further includes a magnetic guard, a limiting bracket, a second rotating shaft, a linkage component, a first rotating shaft, a tongue, a limiting baffle, a third rotating shaft, a paddle, and a torsion spring; The torsion spring of the linkage component is sleeved on the outer wall of the first rotating shaft, the paddle is rotatably connected to the limit frame through the third rotating shaft, the opening control of the linkage component is connected to the permanent magnet moving core, the limit baffle is fixedly connected to the inner wall of the limit frame, and the permanent magnet moving core is set inside the magnetic protection frame. The linkage component of the linkage assembly is rotatably connected to the limiting frame via the first rotating shaft, and the tongue and the linkage component are integrally formed. The self-locking component of the linkage assembly abuts against the end of the permanent magnet moving core, and the second rotating shaft passes through the connection between the limiting frame and the magnetic guard frame.

[0007] Preferably, the self-locking assembly is provided with a magnet, which passes through the permanent magnet moving core. The permanent magnet moving core provides a driving force to drive the magnet to move along the axial direction of the permanent magnet moving core. The driving force is used to control the self-locking assembly to drive the circuit breaker to open or close. When the self-locking component applies pressure to the linkage, the linkage drives the limiting frame to limit the self-locking component.

[0008] Preferably, the tripping control is connected to the limit frame, and the tripping control is used to provide a reset force to push the limit frame to reset. When the tripping control drives the limit frame to reset, the limit frame releases the limit on the self-locking component, and the permanent magnet moving core provides driving force to control the self-locking component to trip.

[0009] Preferably, the circuit breaker includes a protective shell, a sleeve, a first connecting cap, a stop rod, and a second connecting cap; The abutment of the circuit breaker is slidably disposed inside the sleeve, the first connecting cap is fixedly disposed at one end of the sleeve, and the second connecting cap is fixedly disposed on the outer wall of the abutment; The protective shell of the circuit breaker is fitted onto the outside of the sleeve, and the protective shell is detachably and fixedly connected to the main body.

[0010] Preferably, the short-circuit protection mechanism includes a rod, several magnetic deactivation plates, several magnetic trip plates, a rotating shaft, several magnetic trip U-plates, and an extension plate; The outer wall of the insert rod is provided with several movable slots. Each magnetic deactivation piece is fixedly connected to a corresponding magnetic release piece. Each magnetic deactivation piece is rotatably disposed inside the corresponding movable slot. Several magnetic release U-plates are fixedly disposed on the bottom outer wall of the insert rod. Each magnetic release U-plate corresponds to a movable slot. Each magnetic release U-plate is fixedly disposed below the corresponding movable slot. The short circuit protection mechanism is rotatably disposed inside the main body via a provided rotating shaft.

[0011] Preferably, the extension plate is fixedly mounted on one side of the outer wall of the insert rod, and each magnetic release U-plate is provided with a copper busbar for outgoing wires.

[0012] Preferably, it also includes a body, the inner wall of which is fixedly connected to a limiting member, and the position of the limiting member corresponds to the extension plate of the short-circuit protection mechanism.

[0013] Preferably, the outer wall of the second connecting cap abuts against the outer wall of the extension plate, and the outer wall of the first connecting cap abuts against the outer wall of the lever.

[0014] Compared with related technologies, the reclosing switch control mechanism with precise triggering provided by the present invention has the following beneficial effects: 1. This invention provides a reclosing switch control mechanism with precise triggering. It provides a stable and controllable axial driving force through a permanent magnet moving core, which drives the magnet on the self-locking component to move axially. This, combined with the magnetic trip plate and the outgoing copper busbar in a magnetically attracted and tightly connected state, and the pressure linkage of the self-locking component driving the limit frame to form a reliable locking state, and the multi-level linkage and rapid transmission state achieved by the magnetic trip plate through the extension plate, the stop rod and the lever after the rapid action of the magnetic trip plate in the event of a short circuit, solves the problems of low triggering accuracy, slow response speed and inability to achieve millisecond-level tripping in the event of a short circuit in traditional reclosing switches, and the susceptibility to external vibration and current fluctuations after closing, which can lead to false tripping.

[0015] 2. This invention provides a reclosing switch control mechanism with precise triggering. By adopting a modular assembly state where the linkage components, circuit breaker device, and short-circuit protection mechanism are each independent, and with the protective shell of the circuit breaker device being detachably connected to the main body, it is possible to maintain or replace the core transmission components such as the internal sleeve and the push rod without disassembling the entire equipment during later maintenance. This solves the problems of high integration of traditional reclosing switch components, fixed connection of the protective shell, high difficulty in maintaining internal transmission components, and high maintenance costs.

[0016] 3. This invention provides a reclosing switch control mechanism with precise triggering. After a short-circuit fault is cleared and the line current returns to normal, the magnetic deactivation plate automatically restores its initial magnetic state. In conjunction with the permanent magnet drive core, it restarts and provides axial driving force, repeatedly driving the self-locking component, linkage component, limit frame and other components to complete the automatic linkage state of the closing process. The line can be reconnected without manual intervention, which solves the problems of traditional reclosing switches requiring manual reset after fault clearing, low automation, slow power supply restoration speed and poor power supply continuity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall first-state structure of the present invention; Figure 2This is a schematic diagram of the overall second-state structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the structure of the circuit breaker device of the present invention; Figure 5 This is a schematic diagram of the structure of the linkage component of the present invention; Figure 6 This is a schematic diagram of the structure of the lever part of the present invention; Figure 7 This is an exploded view of a portion of the structure of the linkage component of the present invention; Figure 8 This is a schematic diagram of the sleeve structure of the present invention; Figure 9 This is a schematic diagram of the short-circuit protection mechanism of the present invention.

[0018] In the diagram: 1. Main body; 2. Linkage assembly; 201. Magnetic guard; 202. Permanent magnet moving core; 203. Self-locking assembly; 204. Limiting frame; 205. Second rotating shaft; 206. Linkage component; 207. First rotating shaft; 208. Tongue; 209. Circuit breaker control; 210. Limiting baffle; 211. Third rotating shaft; 212. Paddle; 213. Torsion spring; 3. Circuit breaker device; 301. Protective shell; 302. Sleeve; 303. First connecting cap; 304. Abutment rod; 305. Second connecting cap; 4. Limiting component; 5. Short circuit protection mechanism; 501. Insert rod; 502. Movable groove; 503. Magnetic release plate; 504. Magnetic trip plate; 505. Rotating shaft; 506. Magnetic trip U-plate; 507. Extension plate; 6. Outgoing copper busbar. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0020] Please see Figures 1-7 The present invention provides a technical solution: a reclosing switch control mechanism with precise triggering, including a body 1, a linkage component 2, a circuit breaker 3, and a limit component 4.

[0021] The linkage component 2 includes a permanent magnet moving core 202, a self-locking component 203, and a tripping control 209. The permanent magnet moving core 202 is used to provide axial driving force, the self-locking component 203 is used to cooperate with the permanent magnet moving core 202 to realize the opening and closing action, and the tripping control 209 is used to drive the linkage component 2 to reset to release the limit on the self-locking component 203. The circuit breaker 3 and the short circuit protection mechanism 5 work together to realize rapid tripping under short circuit fault conditions. The linkage component 2 also includes a magnetic guard 201, a limit bracket 204, a second rotating shaft 205, a linkage component 206, a first rotating shaft 207, a tongue 208, a limit baffle 210, a third rotating shaft 211, a paddle 212, and a torsion spring 213. The torsion spring 213 of the linkage component 2 is sleeved on the outer wall of the first rotating shaft 207. The paddle 212 is rotatably connected to the limit frame 204 through the third rotating shaft 211. The trip control 209 of the linkage component 2 is connected to the permanent magnet moving core 202. The limit baffle 210 is fixedly connected to the inner wall of the limit frame 204. The permanent magnet moving core 202 is set inside the magnetic protection frame 201. The linkage component 206 of the linkage assembly 2 is rotatably connected to the limit frame 204 through the first rotating shaft 207, and the tongue 208 and the linkage component 206 are integrally formed. The self-locking component 203 of the linkage component 2 abuts against the end of the permanent magnet moving core 202, and the second rotating shaft 205 passes through the connection between the limiting frame 204 and the magnetic guard frame 201. A magnet is provided on the self-locking assembly 203. The magnet passes through the permanent magnet moving core 202. The permanent magnet moving core 202 provides a driving force to drive the magnet to move along the axial direction of the permanent magnet moving core 202. The driving force is used to control the self-locking assembly 203 to drive the circuit breaker to open or close. When the self-locking component 203 applies pressure to the linkage component 206, the linkage component 206 drives the limit frame 204 to limit the self-locking component 203. The tripping control 209 is connected to the limit frame 204. The tripping control 209 is used to provide the reset force to push the limit frame 204 to reset. When the tripping control 209 drives the limit frame 204 to reset, the limit frame 204 releases the limit on the self-locking component 203. The permanent magnet moving core 202 provides the driving force to control the self-locking component 203 to trip.

[0022] The circuit breaker 3 includes a protective shell 301, a sleeve 302, a first connecting cap 303, a stop rod 304, and a second connecting cap 305; The push rod 304 of the circuit breaker 3 is slidably disposed inside the sleeve 302, the first connecting cap 303 is fixedly disposed at one end of the sleeve 302, and the second connecting cap 305 is fixedly disposed on the outer wall of the push rod 304. The protective shell 301 of the circuit breaker 3 is sleeved on the outside of the sleeve 302, and the protective shell 301 is detachably fixedly connected to the body 1.

[0023] In this implementation scheme, the protective shell 301 is assembled to the main body 1 in a detachable fixed connection manner, forming a connection state in which the "protective shell and the main body can be separated". This not only provides effective protection for the core components such as the internal sleeve 302 and the abutment rod 304, but also facilitates later maintenance. The abutment rod 304 and the sleeve 302 adopt a sliding fit structure, which can realize an axial extension and retraction state. The first connecting cap 303 and the second connecting cap 305 at both ends abut against the lever 212 of the linkage component 2 and the extension plate 507 of the short-circuit protection mechanism 5, respectively, forming a key carrier for power transmission and ensuring the accurate transmission of opening and closing commands. At the same time, this scheme adopts a modular assembly state in which the linkage component, the circuit breaker device, and the short-circuit protection mechanism are independent, so that in later maintenance, there is no need to disassemble the entire equipment. Only the protective shell needs to be disassembled to maintain or replace the core transmission components such as the internal sleeve and the abutment rod. This effectively solves the problems of high integration of traditional reclosing switch components, fixed connection of protective shell, high maintenance difficulty of internal transmission components, and high maintenance cost. Example

[0024] Please see Figures 8-9 As shown, based on Embodiment 1, the present invention provides a technical solution: The present invention provides a reclosing switch control mechanism with precise triggering, and also includes a short-circuit protection mechanism 5 and an outgoing copper busbar 6.

[0025] The short-circuit protection mechanism 5 includes a rod 501, several magnetic release plates 503, several magnetic trip plates 504, a rotating shaft 505, several magnetic trip U-plates 506, and an extension plate 507. The outer wall of the insert rod 501 is provided with several movable slots 502. Each magnetic release piece 503 is fixedly connected to a corresponding magnetic release piece 504. Each magnetic release piece 503 is rotatably disposed inside the corresponding movable slot 502. Several magnetic release U-plates 506 are fixedly disposed on the bottom outer wall of the insert rod 501. Each magnetic release U-plate 506 corresponds to a movable slot 502. Each magnetic release U-plate 506 is fixedly disposed below the corresponding movable slot 502. The short circuit protection mechanism 5 is rotatably disposed inside the body 1 via a provided rotating shaft 505.

[0026] The extension plate 507 is fixedly installed on one side of the outer wall of the insert rod 501, and each copper busbar 6 is correspondingly installed inside the magnetic tripping U plate 506; The limiting member 4 is fixedly connected to the inner wall of the body 1, and the position of the limiting member 4 corresponds to the extension plate 507 of the short circuit protection mechanism 5. The outer wall of the second connecting cap 305 abuts against the outer wall of the extension plate 507, and the outer wall of the first connecting cap 303 abuts against the outer wall of the lever 212.

[0027] The working principle of this embodiment is as follows: After the permanent magnet moving core 202 is energized, it generates a stable and controllable axial driving force, which drives the magnet on the self-locking assembly 203 to move along the axial direction of the permanent magnet moving core 202, applying pressure to the linkage 206 and causing the linkage 206 to rotate around the first rotating shaft 207. The linkage 206 further drives the limit frame 204 to move, forming a reliable locking state for the self-locking assembly 203, preventing the structure from loosening due to external vibration and current fluctuations after the circuit is closed. At the same time, the limit frame 204 drives the lever 212 to rotate around the third rotating shaft 211. The lever 212 pushes the first connecting cap 303, causing the abutment 304 to retract along the axial direction of the sleeve 302, and pushes the extension plate 507 through the second connecting cap 305, causing the short-circuit protection mechanism 5 to deflect around the rotating shaft 505. The magnetic release plate 503 then drives the magnetic trip plate 504 to rotate, forming a magnetically attracted and tightly conductive state with the outgoing copper busbar 6 in the magnetic trip plate 506, ensuring stable power supply to the line. The entire process, through the precise drive of the permanent magnet drive core, the locking mechanism of the self-locking component, and the coordinated linkage of various components, solves the problems of low opening and closing triggering accuracy and easy accidental opening after closing of traditional reclosing switches. During normal tripping: the tripping control 209 is activated and provides a reset force, pushing the limit frame 204 to release the lock on the self-locking component 203. The permanent magnet moving core 202 drives the self-locking component 203 to move in the opposite direction. The limit frame 204 resets and drives the lever 212 to rotate in the opposite direction. The stop rod 304 extends outward from the sleeve 302 under its own reset force, pushing the extension plate 507 to drive the short circuit protection mechanism 5 to deflect in the opposite direction. The magnetic trip piece 504 disengages from the outgoing copper busbar 6, achieving precise tripping.

[0028] During short-circuit fault tripping: The short-circuit current triggers the magnetic trip plate 503 to act quickly, causing the magnetic trip plate 504 to quickly disengage from the outgoing copper busbar 6 to complete the initial power disconnection. At the same time, the insert rod 501 drives the extension plate 507 to deflect, pushing the second connecting cap 305 to make the stop rod 304 extend quickly. The power is transmitted to the limit frame 204 through the lever 212, releasing the lock on the self-locking component 203. The permanent magnet drive core 202 drives the self-locking component 203 to complete the millisecond-level tripping. During this process, the limit component 4 precisely limits the deflection amplitude of the extension plate 507 to avoid component damage. Through multi-stage linkage and rapid power transmission, the problems of slow response speed and inability to quickly trip during short-circuit faults in traditional reclosing switches are solved. After the short-circuit fault is cleared, the line current returns to normal, and the magnetic deactivation plate 503 automatically returns to its initial magnetic state. The permanent magnet drive core 202 is energized again to generate axial driving force, repeating the closing phase's operation: driving the self-locking component 203 to move, the linkage component 206 drives the limit frame 204 to lock, the lever 212 pushes the stop rod 304 to retract, the short-circuit protection mechanism 5 resets, and the magnetic deactivation plate 504 and the outgoing copper busbar 6 are magnetically attracted and connected again. The entire reclosing process requires no manual intervention. Through the self-resetting characteristics of the magnetic deactivation plate and the repeated driving mechanism of the permanent magnet drive core, the components are automatically linked to close, solving the problems of manual reset, slow power restoration, and poor continuity after a fault in traditional reclosing switches. Because the linkage component 2, the circuit breaker device 3, and the short-circuit protection mechanism 5 are assembled independently in a modular manner, and the protective shell 301 of the circuit breaker device 3 is detachably connected to the main body 1, there is no need to disassemble the entire equipment during later maintenance. Only the protective shell 301 needs to be disassembled separately to maintain or replace the core transmission components such as the internal sleeve 302 and the push rod 304. This solves the problems of high integration, high maintenance difficulty, and high maintenance cost of traditional reclosing switch components.

[0029] In this implementation scheme, the short-circuit protection mechanism 5 is rotatably connected to the main body 1 via a rotating shaft 505, enabling it to achieve a certain angle of deflection. The movable groove 502 on the outer wall of the insert rod 501 provides rotation space for the magnetic trip plate 503. The fixed connection structure between the magnetic trip plate 503 and the magnetic trip plate 504 can drive the magnetic trip plate 504 to rotate synchronously. In the closed state, the magnetic trip plate 504 and the outgoing copper busbar 6 inside the magnetic trip plate 506 maintain a close contact and conduction state, ensuring stable power supply to the line. When a short-circuit fault occurs in the line, the short-circuit current will trigger the magnetic trip plate 503 to act quickly, causing the magnetic trip plate 504 to quickly disengage from the outgoing copper busbar 6, achieving a rapid response state of initial power disconnection. At the same time, the insert rod 501 drives the extension plate 507 to deflect synchronously, pushing the second connecting cap 305 to trigger the circuit breaker 3 to act, thereby driving the linkage component 2 to complete the millisecond-level tripping operation, preventing the fault range from expanding. Furthermore, the corresponding setting of the limiting member 4 on the inner wall of the main body 1 and the extension plate 507 can accurately limit the deflection amplitude of the short-circuit protection mechanism 5, avoiding damage to components due to excessive rotation. Combined with the locking structure of the self-locking component and the limiting frame, it effectively resists interference from external vibrations and current fluctuations, preventing accidental tripping after closing. After the short-circuit fault is cleared and the line current returns to normal, the magnetic deactivation plate 503 can automatically restore its initial magnetic state, laying the foundation for subsequent automatic reclosing. This solves the problems of low triggering accuracy, slow response speed, inability to quickly trip during short-circuit faults, and susceptibility to accidental tripping due to external forces in traditional reclosing switches.

[0030] The permanent magnet drive provides stable and controllable axial driving force, which, combined with the linkage structure of the self-locking components, linkage parts, and limit frame, enables precise triggering of opening and closing. Simultaneously, the magnetic trip plate and the outgoing copper busbar's magnetic attraction ensure tight conductivity, effectively resisting external vibrations and current fluctuations, and preventing accidental tripping. When a short-circuit fault occurs, the magnetic trip plate actuates rapidly, and through multi-stage linkage of the extension plate, stop rod, and lever, millisecond-level tripping is achieved, solving the problems of slow response and untimely fault tripping in traditional equipment. This mechanism adopts an independent modular assembly method for the linkage components, circuit breaker, and short-circuit protection mechanism, along with a detachable connection structure between the circuit breaker's protective shell and the main body. During later maintenance, there is no need to disassemble the entire device; only the protective shell needs to be removed for maintenance or replacement of the internal core transmission components, significantly reducing maintenance difficulty and costs. In addition, after the short circuit fault is cleared and the line current returns to normal, the magnetic deactivation plate can automatically restore its initial magnetism. In conjunction with the permanent magnet drive core, it can restart and provide axial driving force, which can automatically repeat the closing process. The line can be reconnected without manual intervention, effectively improving the continuity of power supply and the degree of automation, and meeting the unattended operation requirements of modern power distribution systems.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reclosing switch control mechanism with precise triggering, comprising a linkage component (2), a circuit breaker (3), and a short-circuit protection mechanism (5), characterized in that: The linkage component (2) includes a permanent magnet moving core (202), a self-locking component (203), and a tripping control (209). The permanent magnet moving core (202) is used to provide axial driving force. The self-locking component (203) is used to cooperate with the permanent magnet moving core (202) to realize the opening and closing action. The tripping control (209) is used to drive the linkage component (2) to reset so as to release the limit on the self-locking component (203). The circuit breaker (3) is linked with the short circuit protection mechanism (5) to realize rapid tripping under short circuit fault conditions.

2. The reclosing switch control mechanism with precise triggering according to claim 1, characterized in that: The linkage component (2) also includes a magnetic guard (201), a limiting bracket (204), a second rotating shaft (205), a linkage component (206), a first rotating shaft (207), a tongue (208), a limiting baffle (210), a third rotating shaft (211), a paddle (212), and a torsion spring (213). The torsion spring (213) of the linkage component (2) is sleeved on the outer wall of the first rotating shaft (207), the paddle (212) is rotatably connected to the limit frame (204) through the third rotating shaft (211), the trip control (209) of the linkage component (2) is connected to the permanent magnet moving core (202) in a transmission connection, the limit baffle (210) is fixedly connected to the inner wall of the limit frame (204), and the permanent magnet moving core (202) is set inside the magnetic protection frame (201); The linkage component (206) of the linkage assembly (2) is rotatably connected to the limiting frame (204) through the first rotating shaft (207), and the tongue (208) and the linkage component (206) are integrally formed. The self-locking component (203) of the linkage component (2) abuts against the end of the permanent magnet moving core (202), and the second rotating shaft (205) passes through the connection between the limiting frame (204) and the magnetic guard frame (201).

3. The reclosing switch control mechanism with precise triggering according to claim 2, characterized in that: A magnet is provided on the self-locking assembly (203), the magnet passes through the permanent magnet moving core (202), the permanent magnet moving core (202) provides a driving force to drive the magnet to move along the axial direction of the permanent magnet moving core (202), and the driving force is used to control the self-locking assembly (203) to drive the circuit breaker to open or close. When the self-locking component (203) applies pressure to the linkage component (206), the linkage component (206) drives the limiting frame (204) to limit the self-locking component (203).

4. A reclosing switch control mechanism with precise triggering according to any one of claims 1-3, characterized in that: The tripping control (209) is connected to the limit frame (204). The tripping control (209) is used to provide a reset force to push the limit frame (204) to reset. When the tripping control (209) drives the limit frame (204) to reset, the limit frame (204) releases the limit on the self-locking component (203). The permanent magnet moving core (202) provides driving force to control the self-locking component (203) to trip.

5. A reclosing switch control mechanism with precise triggering according to any one of claims 1-3, characterized in that: The circuit breaker (3) includes a protective shell (301), a sleeve (302), a first connecting cap (303), a stop rod (304), and a second connecting cap (305); The abutment (304) of the circuit breaker (3) is slidably disposed inside the sleeve (302), the first connecting cap (303) is fixedly disposed at one end of the sleeve (302), and the second connecting cap (305) is fixedly disposed on the outer wall of the abutment (304); The protective shell (301) of the circuit breaker (3) is sleeved on the outside of the sleeve (302), and the protective shell (301) is detachably fixedly connected to the body (1).

6. A reclosing switch control mechanism with precise triggering according to any one of claims 1-3, characterized in that: The short-circuit protection mechanism (5) includes a rod (501), several magnetic deactivation plates (503), several magnetic trip plates (504), a rotating shaft (505), several magnetic trip U-plates (506), and an extension plate (507). The outer wall of the insert rod (501) is provided with a plurality of movable slots (502). Each magnetic release piece (503) is fixedly connected to a corresponding magnetic release piece (504). Each magnetic release piece (503) is rotatably disposed inside the corresponding movable slot (502). The bottom outer wall of the insert rod (501) is fixedly provided with a plurality of magnetic release U plates (506). The magnetic release U plates (506) correspond one-to-one with the movable slots (502). Each magnetic release U plate (506) is fixedly disposed below the corresponding movable slot (502). The short circuit protection mechanism (5) is rotatably disposed inside the body (1) through a provided rotating shaft (505).

7. A reclosing switch control mechanism with precise triggering according to claim 6, characterized in that: The extension plate (507) is fixedly installed on one side of the outer wall of the insert rod (501), and each magnetic release U plate (506) is provided with a copper busbar (6) for outgoing wires.

8. A reclosing switch control mechanism with precise triggering according to any one of claims 1-3, characterized in that: It also includes a body (1), the inner wall of which is fixedly connected to a limiting member (4), and the position of the limiting member (4) corresponds to the extension plate (507) of the short circuit protection mechanism (5).

9. A reclosing switch control mechanism with precise triggering according to claim 5, characterized in that: The outer wall of the second connecting cap (305) abuts against the outer wall of the extension plate (507), and the outer wall of the first connecting cap (303) abuts against the outer wall of the lever (212).

Images