Propelling mechanism of high-low voltage circuit breaker

Abstract

The invention relates to the technical field of circuit breakers, and discloses a high-low voltage circuit breaker propelling mechanism which comprises a switching-off mechanism, a frame assembly is fixedly installed on the inner wall of the switching-off mechanism, a communication assembly is installed on the inner wall of the switching-off mechanism, and an operator pulls a spring reset rod to drive a radian stop block to move. Then a connecting rod is pushed to ascend to drive a balancing weight, a sliding rod, a spring ring and a connecting block to synchronously ascend, the connecting block ascends to push a moving contact on a moving contact supporting piece to be in contact with a static contact to enable current to be connected, when the current is large, a spring ejector rod downwards pushes an L-shaped plate to descend to enable a radian stop block to be separated from a fixing ring again, and at the moment, the connecting rod is pushed to ascend to drive the balancing weight, the sliding rod, the spring ring and the connecting block to synchronously ascend. The spring ring and the balancing weight return, and a larger initial driving force is provided by utilizing the elastic potential energy of the spring of the spring ring and the gravitational acceleration of the balancing weight, so that the moving contact supporting piece and the static contact can be quickly separated for a larger distance, the duration time of an electric arc is shortened, and the continuous combustion of the electric arc is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker equipment technology, specifically to a high- and low-voltage circuit breaker propulsion mechanism. Background Technology

[0002] Circuit breakers are the safety guardians of power systems, used to connect and disconnect circuits, and automatically cut off current in the event of overload, short circuit, or ground fault, protecting electrical equipment and lines. The circuit breaker's drive mechanism is an important part of the circuit breaker; its main function is to drive the circuit breaker's switching operation, ensuring that the circuit breaker can quickly disconnect current when a circuit fault occurs, thereby protecting equipment and circuits from damage.

[0003] In the event of a short circuit in a high-power line, the circuit breaker contacts often need to have a faster separation speed. The handle usually relies on the elastic potential energy stored in the spring to reset. However, the release speed of the spring's elastic potential energy is fast at the beginning and gradually slows down later, causing the separation speed of the contacts to gradually decrease. Due to the large current, it is difficult for the contacts to separate a large distance quickly, which may lead to the arc continuing to burn and affect the current disconnection. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a high and low voltage circuit breaker propulsion mechanism, including a tripping mechanism, a frame assembly fixedly installed on the inner wall of the tripping mechanism, and a connecting assembly installed on the inner wall of the tripping mechanism. The frame assembly is used to isolate electric arc. A disconnection mechanism, installed on the inner wall of the tripping mechanism, slides along the inner wall of the tripping mechanism to actuate the contacts for connection or disconnection; and The deceleration mechanism, located inside the separation mechanism, is used to reduce the displacement speed of the separation mechanism. The separation mechanism pushes the contacts together. When the current is large, the separation mechanism will cause the contacts to quickly separate a large distance, reducing the duration of the electric arc. The circuit breaker will then disconnect the electric arc to prevent it from continuing to burn.

[0005] Preferably, the circuit breaker housing is internally provided in the tripping mechanism, and the tripping mechanism includes: A frame assembly is fixedly installed on the outer wall of the frame assembly and on the inner wall of the circuit breaker housing to isolate electric arc; A connecting component is fixedly installed on the outer wall of the connecting component and the inner wall of the circuit breaker housing for connecting current. In this process, after the separation mechanism connects the contacts, the current is connected through the connecting component. When the current is too large, the separation mechanism separates the two contacts and disconnects them. Then, the frame component isolates and cools the arc in segments until the arc disappears.

[0006] Preferably, the separation mechanism includes: The support assembly is fixedly mounted on the inner wall of the circuit breaker housing by fasteners and is used to push the contacts to connect. The fastener includes a fixing sleeve that is fixedly connected to the inner wall of the circuit breaker housing, and a sliding rod that is slidably connected to the inner wall of the fixing sleeve; The blocking assembly is fixedly installed on the inner wall of the circuit breaker housing by a support member to block the support assembly. The support includes a support block fixedly connected to the inner wall of the circuit breaker housing, and a spring return rod slidably connected to the inner wall of the circuit breaker housing; The pushing component is slidably mounted on the inner wall of the support block via a slider, and is used to push the blocking component to separate from the support component; The sliding component includes an L-shaped plate that is slidably connected to the inner wall of the support block, and a fixing plate that is fixedly connected to the outer wall of the spring return rod; The system works by using a support component to push the contacts together, allowing current to flow. A blocking component then blocks the support component, keeping it stable. When the current is too high, the pushing component separates the blocking component from the support component, causing the spring inside the support component to quickly separate the contacts. This allows the moving contacts to quickly separate a large distance, reducing the duration of the electric arc and effectively preventing it from continuing to burn. The blocking component also prevents the support component from re-entering its position when it is pushed back up by the spring force. If the support component returns too far to its original position, the contacts may re-enter the electric arc.

[0007] Preferably, the mitigation mechanism includes: A compression assembly, which is slidably disposed on the inner wall of a fixed sleeve via a connector, is used to compress gas; The connector includes a pneumatic cavity formed in the inner wall of the fixed sleeve, and a compression ring is slidably connected to the inner wall of the pneumatic cavity; The centering component is slidably mounted on the inner wall of the fixed sleeve via a pusher to slow down the rising speed of the support component. The pusher includes two connecting brackets 1 that are slidably connected to the inner wall of the fixed sleeve, and two connecting brackets 2 that are slidably connected to the inner wall of the fixed sleeve; The centering component compresses the gas, which slows down the rising speed of the support component and effectively prevents the support component from rising too fast again and impacting the blocking component.

[0008] Preferably, the frame assembly includes an arc extinguisher fixedly connected to the inner wall of the circuit breaker housing, and a moving contact support is rotatably connected to the inner wall of the arc extinguisher; The connecting component includes a mounting bracket fixedly connected to the inner wall of the circuit breaker housing, a coil fixedly connected to the top of the mounting bracket, a spring push rod slidably connected to the inner wall of the mounting bracket, and a stationary contact fixedly connected to the bottom of the mounting bracket. In this process, the moving contact on the moving contact support makes contact with the stationary contact, thereby connecting the current. When the current is too large, the spring rod will descend, pushing the blocking component and the support component to separate, so that the two contacts will quickly separate. After the arc enters the arc extinguisher, it is divided into multiple segments, thereby extinguishing the arc.

[0009] Preferably, the support assembly includes a counterweight block fixedly connected to the bottom of the sliding rod, a connecting rod fixedly connected to the side wall of the counterweight block, and the outer wall of the connecting rod slidably connected to the inner wall of the circuit breaker housing. A spring ring is fixedly connected to the outer wall of the sliding rod, and a connecting block is fixedly connected to the top of the sliding rod. The inner wall of the connecting block is slidably connected to the bottom of the moving contact support. Specifically, by moving the blocking component to remove the obstruction of the support component, the connecting rod is pushed up, causing the counterweight, sliding rod, spring ring and connecting block to rise synchronously. This causes the spring ring to be compressed and accumulate rebound force. The rise of the connecting block will push the moving contact support to rotate, so that the moving contact on the moving contact support contacts the stationary contact, allowing the current to flow.

[0010] Preferably, the blocking assembly includes an arcuate stop block fixedly connected to the side wall of the spring return rod, a fixing ring fixedly connected to the outer wall of the sliding rod, and the outer wall of the spring return rod slidably connected to the inner wall of the support block; Specifically, by pulling the spring return rod, the arc-shaped stop block is moved, removing the obstruction to the fixed ring and allowing the sliding rod to rise smoothly. When the moving contact on the moving contact support contacts the stationary contact, the spring return rod is released, causing the arc-shaped stop block to move to the bottom of the fixed ring and support the fixed ring.

[0011] Preferably, the pushing component includes a connecting rod rotatably connected to the bottom of the L-shaped plate, and the inner wall of the connecting rod is rotatably connected to the top of the fixed plate; Under normal operating conditions, the current will not exceed the magnetic field generated by the circuit breaker coil. This magnetic field is insufficient to overcome the tension of the spring push rod, so the spring push rod cannot move downwards. However, in the case of a short circuit in the coil, the current will increase, generating a strong magnetic field. The enhanced magnetic field will pull the spring push rod downwards, causing it to contact the L-shaped plate and push it down. This will cause the L-shaped plate to rotate, pushing the fixed plate away from the fixed ring and causing the spring return rod to move, stretching it and causing the arc-shaped stop to separate from the fixed ring again. At this point, the spring ring's restoring force will be released, allowing the spring to return to its normal position. As the spring ring and counterweight return to their original positions, the counterweight, due to its vertical movement and weight, naturally falls under the influence of gravity. By utilizing the elastic potential energy of the spring ring and the gravitational acceleration of the counterweight, a greater initial driving force is provided, enabling the moving contact support to quickly separate from the stationary contact. As the spring ring descends, its rebound force gradually weakens, and the counterweight, under the influence of gravity, also applies a downward thrust, ensuring the continuity of the separation speed. This allows the moving contact support to quickly separate from the stationary contact by a greater distance, reducing the duration of the electric arc and effectively preventing the arc from continuing to burn.

[0012] Preferably, the compression assembly includes a second compression ring that is slidably connected to the inner wall of the air pressure chamber, the inner wall of the second compression ring being slidably connected to the outer wall of the sliding rod, and the bottom of the first compression ring being fixedly connected to the top of the spring ring. When the spring ring rises, it drives the compression ring to rise as well, compressing the gas in the air pressure chamber and slowing down the rising speed of the sliding rod.

[0013] Preferably, the centering assembly includes two rotating brackets rotatably connected to the inner wall of the circuit breaker housing, the bottom of the spring rings being fixedly connected to the top of the two connecting brackets, and the top of the compression ring being fixedly connected to the bottom of the two connecting brackets. The tops of both connecting frames 1 are slidably connected to the inner walls of the two rotating frames, and the bottoms of both connecting frames 2 are slidably connected to the inner walls of the two rotating frames. During the process of the spring ring rising again, the sliding rod and spring ring also rise. The spring ring drives the compression ring one and the connecting frame one to rise. The connecting frame one pushes the rotating frame to rotate, causing the side of the rotating frame and the connecting frame one that is close to each other to rise, while the other side falls. The falling side pushes the connecting frame two to fall, causing the compression ring two to fall. This brings the compression ring one and the compression ring two closer together, quickly compressing the gas in the air pressure chamber. The compressed gas generates a reaction force with the rising spring ring, thereby slowing down the speed at which the fixed ring rises again. This effectively prevents the fixed ring from rising too fast again and impacting the arc stop block.

[0014] The present invention has the following beneficial effects: (1) When using this invention, the operator pulls the spring reset rod to move the arc stop block, and then pushes the connecting rod to rise, which drives the counterweight, sliding rod, spring ring and connecting block to rise synchronously. The rise of the connecting block will push the moving contact on the moving contact support to contact the stationary contact, so that the current can be connected. When the current is large, the spring top rod will push the L-shaped plate down to descend, so that the arc stop block will separate from the fixed ring again. At this time, the spring ring and the counterweight return to their positions. By utilizing the elastic potential energy of the spring ring and the gravitational acceleration of the counterweight, a greater initial driving force is provided, so that the moving contact support and the stationary contact can be separated quickly. As the spring ring descends, the rebound force gradually weakens. The counterweight is subjected to gravity and will also apply a downward thrust to ensure the continuity of the separation speed. This allows the moving contact support and the stationary contact to be separated quickly by a large distance, reducing the duration of the electric arc and effectively preventing the electric arc from continuing to burn.

[0015] (2) When the counterweight descends, the present invention will also drive the sliding rod and the fixed ring to descend. When the fixed ring descends to the bottom of the arc stop, the spring rod returns to its original position. At this time, the spring return rod will release its elastic force, pushing the arc stop back to its original position. Since the spring ring and the counterweight descend at a relatively fast speed, when the counterweight returns to its original position, the elastic force of the spring ring will push the sliding rod and the fixed ring to rise again. After the arc stop returns to its original position, when the fixed ring contacts the arc stop during the process of the fixed ring rising again, the arc stop will block the rise of the fixed ring, effectively preventing the sliding rod from driving the connecting block to return to its original position by too large a distance, causing the moving contact support to approach the stationary contact again and causing the electric arc to reappear.

[0016] (3) During the process of the fixed ring rising again, the sliding rod and the spring ring will also rise. The spring ring will drive the compression ring one and the connecting frame one to rise. The connecting frame one will push the rotating frame to rotate, so that the side of the rotating frame and the connecting frame one that are close to each other rises and the other side falls. The falling side will push the connecting frame two to fall, so that the compression ring two falls, allowing the compression ring one and the compression ring two to come closer to each other and quickly compress the gas in the air pressure chamber. The compressed gas will generate a reaction force with the rising spring ring, thereby slowing down the speed of the fixed ring rising again and effectively preventing the fixed ring from rising too fast again and causing impact on the arc stop block.

[0017] (4) When the sliding rod and connecting block rise and push the moving contact support to contact the stationary contact, the spring ring will drive the compression ring one and the connecting frame one to rise. The rotating frame will cause the compression ring two to fall, so that the compression ring one and the compression ring two will compress the gas in the air pressure chamber, thereby increasing the gas pressure. When the moving contact support separates from the stationary contact, the high-pressure gas in the air pressure chamber will also push the compression ring one and the compression ring two to move again, thereby accelerating the descent speed of the spring ring and the sliding rod and enhancing the initial separation speed of the moving contact support and the stationary contact. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the circuit breaker housing of the present invention; Figure 4 This is a cross-sectional view of the coil of the present invention; Figure 5 This is a cross-sectional schematic diagram of the fixing sleeve of the present invention; Figure 6 For the present invention Figure 5 Enlarged diagram of A in the middle; Figure 7 For the present invention Figure 5 Enlarged diagram of B in the diagram; Figure 8 This is a schematic diagram of the internal structure of the fixing sleeve of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Circuit breaker mechanism; 11. Frame assembly; 12. Connecting assembly; 111. Circuit breaker housing; 112. Arc extinguisher; 113. Moving contact support; 121. Placement rack; 122. Coil; 123. Spring push rod; 124. Stationary contact; 2. Separation mechanism; 21. Support assembly; 22. Blocking assembly; 23. Pushing assembly; 211. Fixed sleeve; 212. Sliding rod; 213. Counterweight; 214. Connecting rod 215. Spring ring; 216. Connecting block; 221. Support block; 222. Spring return rod; 223. Arc stop block; 224. Fixing ring; 231. L-shaped plate; 232. Fixing plate; 233. Connecting rod; 3. Reduction mechanism; 31. Compression assembly; 32. Centering assembly; 311. Air pressure chamber; 312. Extrusion ring one; 313. Extrusion ring two; 321. Connecting frame one; 322. Connecting frame two; 323. Rotating frame. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figures 1-5 The present invention is a high and low voltage circuit breaker propulsion mechanism, including a tripping mechanism 1, a frame assembly 11 fixedly installed on the inner wall of the tripping mechanism 1, and a connecting assembly 12 installed on the inner wall of the tripping mechanism 1. The frame assembly 11 is used to isolate electric arc. The separation mechanism 2 is installed on the inner wall of the tripping mechanism 1. The separation mechanism 2 is slidably disposed on the inner wall of the tripping mechanism 1 and is used to push the contacts to connect or disconnect; and The deceleration mechanism 3 is located inside the separation mechanism 2 and is used to reduce the displacement speed of the separation mechanism 2. In this process, the separation mechanism 2 pushes the contacts to connect. When the current is large, the separation mechanism 2 will cause the contacts to quickly separate a large distance, reducing the duration of the electric arc. The arc is then disconnected by the circuit breaker mechanism 1 to prevent the arc from continuing to burn.

[0023] The circuit breaker housing 111 is internally provided in the tripping mechanism 1. The tripping mechanism 1 includes: The frame assembly 11 is fixedly installed on the outer wall of the frame assembly 11 and the inner wall of the circuit breaker housing 111 to isolate electric arc. The connecting component 12 is fixedly installed on the outer wall of the connecting component 12 and the inner wall of the circuit breaker housing 111, and is used to connect the current. When the separation mechanism 2 connects the contacts, the current is connected through the connecting component 12. When the current is too large, the separation mechanism 2 separates the two contacts and disconnects them. The arc is then isolated and cooled in segments by the frame component 11 until the arc disappears.

[0024] Separation mechanism 2 includes: Support assembly 21 is fixedly mounted on the inner wall of the circuit breaker housing 111 by fasteners and is used to push the contacts to connect. The fastener includes a fixing sleeve 211 that is fixedly connected to the inner wall of the circuit breaker housing 111, and a sliding rod 212 that is slidably connected to the inner wall of the fixing sleeve 211. The blocking assembly 22 is fixedly installed on the inner wall of the circuit breaker housing 111 by a support member, and is used to block the support assembly 21. The support includes a support block 221 fixedly connected to the inner wall of the circuit breaker housing 111, and a spring return rod 222 slidably connected to the inner wall of the circuit breaker housing 111. Push component 23 is slidably disposed on the inner wall of support block 221 via a slider, and is used to push blocking component 22 to separate from support component 21; The sliding component includes an L-shaped plate 231 that is slidably connected to the inner wall of the support block 221, and a fixing plate 232 that is fixedly connected to the outer wall of the spring return rod 222. In this system, the support component 21 pushes the contacts to connect, allowing current to flow. The blocking component 22 then blocks the support component 21, keeping it stable. When the current is too high, the pushing component 23 pushes the blocking component 22 to separate from the support component 21, allowing the spring inside the support component 21 to quickly separate the contacts. This allows the moving contacts to quickly separate a large distance, reducing the duration of the electric arc and effectively preventing the arc from continuing to burn. The blocking component 22 also prevents the support component 21 from rising again due to the spring's rebound force. If the support component 21 returns to its original position too far, the contacts may move closer together again, potentially causing the electric arc to reappear.

[0025] Mitigation mechanism 3 includes: Compression component 31 is slidably disposed on the inner wall of fixed sleeve 211 via a connector and is used to compress gas; The connector includes a pneumatic cavity 311 formed in the inner wall of the fixed sleeve 211, and a compression ring 312 is slidably connected to the inner wall of the pneumatic cavity 311. The centering component 32 is slidably disposed on the inner wall of the fixed sleeve 211 by a pusher, which is used to slow down the rising speed of the support component 21. The pusher includes two connecting brackets 321 that are slidably connected to the inner wall of the fixed sleeve 211, and two connecting brackets 322 that are slidably connected to the inner wall of the fixed sleeve 211. The centering component 32 causes the compression component 31 to squeeze the gas, which slows down the rising speed of the support component 21 and effectively prevents the support component 21 from rising too fast again and impacting the blocking component 22.

[0026] Example 2, please refer to Figures 6-8 The present invention is a high and low voltage circuit breaker propulsion mechanism. Based on Example 1, the frame assembly 11 includes an arc extinguisher 112 fixedly connected to the inner wall of the circuit breaker housing 111, and a moving contact support 113 rotatably connected to the inner wall of the arc extinguisher 112. The connecting assembly 12 includes a placement frame 121 fixedly connected to the inner wall of the circuit breaker housing 111, a coil 122 fixedly connected to the top of the placement frame 121, a spring push rod 123 slidably connected to the inner wall of the placement frame 121, and a stationary contact 124 fixedly connected to the bottom of the placement frame 121. In this process, the moving contact on the moving contact support 113 contacts the stationary contact 124, thereby connecting the current. When the current is too large, the spring rod 123 will descend, pushing the blocking assembly 22 to separate from the support assembly 21, causing the two contacts to separate quickly. After the arc enters the arc extinguisher 112, it is divided into multiple segments, thereby extinguishing the arc.

[0027] The support assembly 21 includes a counterweight 213 fixedly connected to the bottom of the sliding rod 212, and a connecting rod 214 fixedly connected to the side wall of the counterweight 213. The outer wall of the connecting rod 214 is slidably connected to the inner wall of the circuit breaker housing 111. A spring ring 215 is fixedly connected to the outer wall of the sliding rod 212, and a connecting block 216 is fixedly connected to the top of the sliding rod 212. The inner wall of the connecting block 216 is slidably connected to the bottom of the moving contact support 113. Specifically, by moving the blocking component 22 to remove the obstruction of the support component 21, the connecting rod 214 is pushed up, which drives the counterweight 213, sliding rod 212, spring ring 215 and connecting block 216 to rise synchronously. This causes the spring ring 215 to be compressed, accumulating rebound force. The rise of the connecting block 216 will push the moving contact support 113 to rotate, so that the moving contact on the moving contact support 113 contacts the stationary contact 124, allowing the current to flow.

[0028] The blocking assembly 22 includes an arcuate stop 223 fixedly connected to the side wall of the spring return rod 222, a fixing ring 224 fixedly connected to the outer wall of the sliding rod 212, and the outer wall of the spring return rod 222 slidably connected to the inner wall of the support block 221. Specifically, by pulling the spring reset rod 222, the arc stop 223 is moved, which removes the obstruction to the fixed ring 224, allowing the sliding rod 212 to rise smoothly. When the moving contact on the moving contact support 113 contacts the stationary contact 124, the spring reset rod 222 is released, causing the arc stop 223 to move to the bottom of the fixed ring 224, thus supporting the fixed ring 224.

[0029] The pushing component 23 includes a connecting rod 233 rotatably connected to the bottom of the L-shaped plate 231, and the inner wall of the connecting rod 233 is rotatably connected to the top of the fixed plate 232; Under normal operating conditions, the current will not exceed the magnetism generated by the circuit breaker coil 122. This magnetism is insufficient to overcome the tension of the spring rod 123, so the spring rod 123 cannot move downwards. However, when the coil 122 is short-circuited, the current will increase, generating a strong magnetic field. The increased magnetism will pull the spring rod 123 downwards, causing it to contact the L-shaped plate 231 and push it down. This will cause the connecting rod 233 to rotate, pushing the fixed plate 232 away from the fixed ring 224. This will cause the spring return rod 222 to move, stretching it and causing the arc stop 223 to separate from the fixed ring 224 again. At this time, the rebound force of the spring ring 215 will... Release the spring ring 215 and the counterweight 213 back to their original positions. Since the counterweight 213 moves vertically up and down and has a certain weight, it will fall naturally under the influence of gravity. By utilizing the elastic potential energy of the spring ring 215 and the gravitational acceleration of the counterweight 213, a greater initial driving force is provided, which makes the moving contact support 113 and the stationary contact 124 separate quickly. As the spring ring 215 descends, the rebound force gradually weakens. The counterweight 213 is also subjected to the action of gravity and will also exert a downward thrust to ensure the continuity of the separation speed. This allows the moving contact support 113 and the stationary contact 124 to quickly separate by a large distance, reduce the duration of the electric arc, and effectively prevent the electric arc from continuing to burn.

[0030] The compression assembly 31 includes a second compression ring 313 that is slidably connected to the inner wall of the air pressure chamber 311. The inner wall of the second compression ring 313 is slidably connected to the outer wall of the sliding rod 212. The bottom of the first compression ring 312 is fixedly connected to the top of the spring ring 215. When the spring ring 215 rises, it will drive the compression ring 312 to rise, compressing the gas in the air pressure chamber 311, thereby slowing down the rising speed of the sliding rod 212.

[0031] The centering assembly 32 includes two rotating brackets 323 rotatably connected to the inner wall of the circuit breaker housing 111. The bottom of the spring ring 215 is fixedly connected to the top of the two connecting brackets 321, and the top of the compression ring 313 is fixedly connected to the bottom of the two connecting brackets 322. The tops of both connecting frames 321 are slidably connected to the inner walls of both rotating frames 323, and the bottoms of both connecting frames 322 are slidably connected to the inner walls of both rotating frames 323. During the process of the spring ring 215 rising again, which in turn drives the fixed ring 224 to rise again, the sliding rod 212 and the spring ring 215 also rise. The spring ring 215 drives the compression ring 312 and the connecting frame 321 to rise. The connecting frame 321 pushes the rotating frame 323 to rotate, causing the side of the rotating frame 323 and the connecting frame 321 that are close to each other to rise, while the other side falls. The falling side pushes the connecting frame 322 to fall, causing the compression ring 313 to fall. This brings the compression ring 312 and the compression ring 313 closer together, quickly compressing the gas in the air pressure chamber 311. The compressed gas generates a reaction force with the rising spring ring 215, thereby slowing down the speed at which the fixed ring 224 rises again. This effectively prevents the fixed ring 224 from rising too fast again and impacting the arc stop block 223.

[0032] The number of the above components is not limited. Those skilled in the art can set it freely according to actual needs, as long as the above components are installed at the corresponding component connection positions.

[0033] A specific application of this embodiment is as follows: When using this invention, the operator pulls the spring return rod 222 to move the arc-shaped stop block 223, removing the obstruction to the fixed ring 224. This stretches the spring return rod 222, accumulating rebound force, and then pushes the connecting rod 214 upward. This causes the counterweight block 213, sliding rod 212, spring ring 215, and connecting block 216 to rise synchronously, compressing the spring ring 215 and accumulating rebound force. The rising of the connecting block 216 pushes the moving contact support 113 to rotate, causing the moving contact support 113 to rotate. The moving contact on 13 contacts the stationary contact 124, allowing current to flow. Then, the spring return rod 222 is released, causing the arc-shaped stop block 223 to move to the bottom of the fixed ring 224, supporting the fixed ring 224. Under normal operating conditions, the current will not exceed the magnetism generated by the circuit breaker coil 122. This magnetism is insufficient to overcome the tension of the spring rod 123, so the spring rod 123 cannot move downwards. However, when the coil 122 is short-circuited, the current increases, generating a strong magnetic field. The increased magnetism pulls the spring rod 123. As the spring push rod 123 moves downward, it contacts the L-shaped plate 231, pushing it down and causing the connecting rod 233 to rotate. The connecting rod 233 then pushes the fixed plate 232 away from the fixed ring 224, causing the spring return rod 222 to move and be stretched, allowing the arc-shaped stop block 223 to separate from the fixed ring 224 again. At this point, the restoring force of the spring ring 215 is released, causing the spring ring 215 and the counterweight 213 to return to their original positions. Since the counterweight 213 moves vertically up and down and has a certain weight, it is subjected to gravity. The influence will naturally fall. By utilizing the elastic potential energy of the spring ring 215 and the gravitational acceleration of the counterweight 213, a greater initial driving force is provided, which enables the moving contact support 113 to quickly separate from the stationary contact 124. As the spring ring 215 descends, the rebound force gradually weakens. The counterweight 213 is subjected to gravity and will also apply a downward thrust to ensure the continuity of the separation speed. This allows the moving contact support 113 and the stationary contact 124 to quickly separate by a large distance, reducing the duration of the electric arc and effectively preventing the electric arc from continuing to burn. When the moving contact support 113 separates from the stationary contact 124, the electric arc will enter the arc extinguisher 112. The arc extinguisher 112 will isolate and cool the arc in segments until the arc disappears. Secondly, when the counterweight 213 descends, it also causes the sliding rod 212 and the fixed ring 224 to descend. When the fixed ring 224 descends to the bottom of the arc-shaped stop 223, the moving contact support 113 separates from the stationary contact 124. At this time, the current in the coil 122 weakens, making the magnetic force of the descending spring rod 123 insufficient to overcome the tension of the spring rod 123. The rebound force of the spring rod 123 is released, causing the spring rod 123 to return to its original position. The pushing force on the L-shaped plate 231 disappears. At this time, the rebound force of the spring return rod 222 is released, pushing the arc-shaped stop 223 back to its original position. In this case, since the spring ring 215 and the counterweight 213 descend at a relatively fast speed, when the counterweight 213 returns to its original position, the rebound force of the spring ring 215 will push the sliding rod 212 and the fixed ring 224 to rise again. After the arc stop 223 returns to its original position, when the fixed ring 224 rises again, the arc stop 223 will block the rise of the fixed ring 224, effectively preventing the sliding rod 212 from driving the connecting block 216 to rise too far again, causing the moving contact support 113 to approach the stationary contact 124 again and causing the electric arc to reappear. Secondly, during the process of the fixed ring 224 rising again, the sliding rod 212 and the spring ring 215 will also rise. The spring ring 215 will drive the compression ring 312 and the connecting frame 321 to rise. The connecting frame 321 will push the rotating frame 323 to rotate, causing the side of the rotating frame 323 and the connecting frame 321 that are close to each other to rise, while the other side falls. The falling side will push the connecting frame 322 to fall, causing the compression ring 313 to fall, so that the compression ring 312 and the compression ring 313 will come closer to each other and quickly compress the gas in the air pressure chamber 311. The compressed gas will generate a reaction force with the rising spring ring 215, thereby slowing down the speed at which the fixed ring 224 rises again, effectively preventing the fixed ring 224 from rising too fast again and impacting the arc stop block 223. Secondly, when the sliding rod 212 and the connecting block 216 rise, pushing the moving contact support 113 to contact the stationary contact 124, the spring ring 215 will drive the compression ring 312 and the connecting frame 321 to rise. The rotating frame 323 will cause the compression ring 313 to fall, allowing the compression ring 312 and the compression ring 313 to compress the gas in the air pressure chamber 311, increasing the gas pressure. When the moving contact support 113 separates from the stationary contact 124, the high-pressure gas in the air pressure chamber 311 will also push the compression ring 312 and the compression ring 313 to move again, thereby accelerating the descent speed of the spring ring 215 and the sliding rod 212 and enhancing the initial separation speed of the moving contact support 113 and the stationary contact 124.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high- and low-voltage circuit breaker propulsion mechanism, characterized in that, include: A circuit breaker mechanism (1) is provided with a frame assembly (11) fixedly installed on the inner wall of the circuit breaker mechanism (1) and a connecting assembly (12) installed on the inner wall of the circuit breaker mechanism (1). The frame assembly (11) is used to isolate electric arc. A separation mechanism (2) is installed on the inner wall of the tripping mechanism (1). The separation mechanism (2) is slidably disposed on the inner wall of the tripping mechanism (1) and is used to push the contacts to connect or disconnect; and A deceleration mechanism (3) is located inside the separation mechanism (2) and is used to decelerate the displacement speed of the separation mechanism (2); Among them, the separation mechanism (2) pushes the contacts to connect. When the current is large, the separation mechanism (2) will drive the contacts to quickly separate. The arc is broken by the circuit breaker mechanism (1) to prevent the arc from continuing to burn.

2. The high and low voltage circuit breaker propulsion mechanism according to claim 1, characterized in that: The circuit breaker housing (111) is provided inside the circuit breaker mechanism (1), and the circuit breaker mechanism (1) includes: A frame assembly (11) is fixedly disposed on the outer wall of the frame assembly (111) and the inner wall of the circuit breaker housing (111) for isolating electric arc; A connecting component (12) is fixedly disposed on the outer wall of the connecting component (12) and the inner wall of the circuit breaker housing (111) for connecting current; When the separation mechanism (2) connects the contacts, the current is connected through the connecting component (12). When the current is too large, the separation mechanism (2) separates the contacts and the arc is broken through the frame component (11).

3. The high and low voltage circuit breaker propulsion mechanism according to claim 2, characterized in that: The separation mechanism (2) includes: Support assembly (21), which is fixedly installed on the inner wall of the circuit breaker housing (111) by fasteners, is used to push the contacts to connect; The fastener includes a fixing sleeve (211) fixedly connected to the inner wall of the circuit breaker housing (111), and a sliding rod (212) is slidably connected to the inner wall of the fixing sleeve (211). The blocking assembly (22) is fixedly installed on the inner wall of the circuit breaker housing (111) by a support member and is used to block the support assembly (21). The support includes a support block (221) fixedly connected to the inner wall of the circuit breaker housing (111), and a spring return rod (222) is slidably connected to the inner wall of the circuit breaker housing (111). A pushing component (23) is slidably disposed on the inner wall of the support block (221) via a sliding member, for pushing the blocking component (22) to separate from the support component (21); The sliding member includes an L-shaped plate (231) slidably connected to the inner wall of the support block (221), and a fixing plate (232) is fixedly connected to the outer wall of the spring return rod (222). In this process, the support component (21) pushes the contacts to connect, allowing current to flow. Then, the blocking component (22) blocks the support component (21), keeping the support component (21) stable. When the current is too large, the pushing component (23) pushes the blocking component (22) to separate from the support component (21), allowing the support component (21) to drive the contacts to separate quickly.

4. The high and low voltage circuit breaker propulsion mechanism according to claim 3, characterized in that: The mitigation mechanism (3) includes: Compression assembly (31), which is slidably disposed on the inner wall of fixed sleeve (211) via a connector, is used to compress gas; The connector includes a pneumatic cavity (311) formed in the inner wall of the fixed sleeve (211), and a compression ring (312) is slidably connected to the inner wall of the pneumatic cavity (311). The centering component (32) is slidably disposed on the inner wall of the fixed sleeve (211) by a pusher to slow down the rising speed of the support component (21); The pusher includes two connecting brackets (321) that are slidably connected to the inner wall of the fixed sleeve (211), and two connecting brackets (322) that are slidably connected to the inner wall of the fixed sleeve (211). The compression component (31) is compressed by the centering component (32), which in turn reduces the rising speed of the support component (21).

5. A high- and low-voltage circuit breaker propulsion mechanism according to claim 4, characterized in that: The frame assembly (11) includes an arc extinguisher (112) fixedly connected to the inner wall of the circuit breaker housing (111), and a moving contact support (113) is rotatably connected to the inner wall of the arc extinguisher (112). The connecting component (12) includes a mounting bracket (121) fixedly connected to the inner wall of the circuit breaker housing (111), a coil (122) fixedly connected to the top of the mounting bracket (121), a spring push rod (123) slidably connected to the inner wall of the mounting bracket (121), and a stationary contact (124) fixedly connected to the bottom of the mounting bracket (121). The moving contact on the moving contact support (113) contacts the stationary contact (124), thereby connecting the current. When the current is too large, the spring rod (123) will descend, pushing the blocking assembly (22) to separate from the support assembly (21), causing the two contacts to separate quickly. After the arc enters the arc extinguisher (112), the arc is divided into multiple segments, thereby eliminating the arc.

6. A high- and low-voltage circuit breaker propulsion mechanism according to claim 5, characterized in that: The support assembly (21) includes a counterweight (213) fixedly connected to the bottom of the sliding rod (212), and a connecting rod (214) fixedly connected to the side wall of the counterweight (213). The outer wall of the connecting rod (214) is slidably connected to the inner wall of the circuit breaker housing (111). A spring ring (215) is fixedly connected to the outer wall of the sliding rod (212), and a connecting block (216) is fixedly connected to the top of the sliding rod (212). The inner wall of the connecting block (216) is slidably connected to the bottom of the moving contact support (113). In this process, the blocking component (22) is moved to remove the obstruction of the support component (21), and then the connecting rod (214) is pushed up, so that the counterweight (213) and the sliding rod (212) rise synchronously. The moving contact support (113) is pushed to rotate through the connecting block (216), so that the moving contact and the stationary contact (124) come into contact.

7. A high- and low-voltage circuit breaker propulsion mechanism according to claim 6, characterized in that: The blocking assembly (22) includes an arcuate stop (223) fixedly connected to the side wall of the spring return rod (222), a fixing ring (224) fixedly connected to the outer wall of the sliding rod (212), and the outer wall of the spring return rod (222) slidably connected to the inner wall of the support block (221). In this process, by pulling the spring reset rod (222), the arc stop (223) is moved, which removes the obstruction to the fixed ring (224) and allows the sliding rod (212) to rise smoothly.

8. A high- and low-voltage circuit breaker propulsion mechanism according to claim 7, characterized in that: The pushing assembly (23) includes a connecting rod (233) rotatably connected to the bottom of the L-shaped plate (231), and the inner wall of the connecting rod (233) is rotatably connected to the top of the fixed plate (232). When the current is too large, the spring push rod (123) descends, which pushes the L-shaped plate (231) down. The connecting rod (233) pushes the fixed plate (232) away from the sliding rod (212), causing the spring reset rod (222) to move, so that the arc stop (223) separates from the fixed ring (224) again, and the connecting block (216) drives the moving contact support (113) to descend quickly.

9. A high- and low-voltage circuit breaker propulsion mechanism according to claim 8, characterized in that: The compression assembly (31) includes a second compression ring (313) that is slidably connected to the inner wall of the air pressure chamber (311). The inner wall of the second compression ring (313) is slidably connected to the outer wall of the sliding rod (212). The bottom of the first compression ring (312) is fixedly connected to the top of the spring ring (215). When the spring ring (215) rises, it will drive the compression ring (312) to rise, compressing the gas in the air pressure chamber (311), thereby slowing down the rising speed of the sliding rod (212).

10. A high- and low-voltage circuit breaker propulsion mechanism according to claim 9, characterized in that: The centering assembly (32) includes two rotating brackets (323) rotatably connected to the inner wall of the circuit breaker housing (111), the bottom of the spring ring (215) is fixedly connected to the top of the two connecting brackets (321), and the top of the compression ring (313) is fixedly connected to the bottom of the two connecting brackets (322). The tops of the two connecting frames (321) are slidably connected to the inner walls of the two rotating frames (323), and the bottoms of the two connecting frames (322) are slidably connected to the inner walls of the two rotating frames (323). When the spring ring (215) rises, it will also drive the first connecting frame (321) to rise. The first connecting frame (321) will push the rotating frame (323) to rotate, causing the rotating frame (323) to tilt, pushing the second connecting frame (322) to fall, thereby causing the second extrusion ring (313) to fall, so that the second extrusion ring (313) and the second extrusion ring (313) will approach each other, and the gas pressure will increase faster.

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