A circuit breaker connectable to a smart system

Abstract

The utility model relates to circuit breaker technical field and disclose a kind of circuit breaker of connectable intelligent system, including circuit breaker, and fixed assembly is arranged on circuit breaker, fixed assembly includes two rectangular plates, two rectangular plates are all fixedly connected on the left side of circuit breaker, the left side of two rectangular plates is all set with T-shaped sliding slot, by setting fixed assembly, the whole dismounting and installation process of intelligent module installation box need not to dismount circuit breaker body, also need not to replace complete set of equipment, and further solve the defect that traditional integrated circuit breaker module fault needs complete replacement, greatly reduce maintenance cost, shorten maintenance downtime simultaneously, improve equipment use performance ratio, and intelligent module installation box is as independent carrier, can replace different function module according to intelligent system demand, such as increasing temperature and humidity sensor, upgrading 5G communication unit, without replacing circuit breaker body, further improve the compatibility and expansibility of equipment.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically a circuit breaker that can be connected to an intelligent system. Background Technology

[0002] Circuit breakers that can be connected to intelligent systems are the core equipment of intelligent power distribution and protection networks. Their core requirements are flexible adaptation of intelligent modules, convenient fault maintenance, and dynamic functional expansion. They need to achieve a reliable connection between intelligent modules and the circuit breaker body, and at the same time, they can be handled independently without disassembling the body when a module fails. Furthermore, they should be able to replace different functional modules according to the upgrade requirements of the intelligent system, avoiding the need to replace the entire equipment.

[0003] However, the intelligent modules of existing circuit breakers that can be connected to intelligent systems are directly embedded inside the circuit breaker body, without an independent detachable installation structure. Once the module fails, such as communication unit failure or sensor malfunction, the entire circuit breaker needs to be replaced. It is impossible to repair or replace the module separately, which leads to a significant increase in maintenance costs and extends system downtime during the replacement process. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a circuit breaker that can be connected to an intelligent system. This solves the problem that in current circuit breakers that can be connected to intelligent systems, the intelligent modules are directly embedded inside the circuit breaker body without an independent, detachable installation structure. As a result, if a module fails, such as a communication unit failure or sensor malfunction, the entire circuit breaker needs to be replaced, making it impossible to repair or replace the module separately. This leads to a significant increase in maintenance costs and extends system downtime during the replacement process.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a circuit breaker that can be connected to an intelligent system, including a circuit breaker, a fixing component on the circuit breaker, the fixing component including two rectangular plates, both rectangular plates being fixedly connected to the left side of the circuit breaker, and a T-shaped groove being provided on the left side of both rectangular plates;

[0008] The upper and lower surfaces of the two rectangular plates are provided with first rectangular slots, and the four first rectangular slots are respectively connected to the interior of the corresponding T-shaped sliding grooves.

[0009] The inner walls of the two T-shaped grooves are slidably connected to T-shaped mounting plates, and each of the two T-shaped mounting plates has a second rectangular slot.

[0010] Preferably, a smart module mounting box is fixedly connected to the left side of the two T-shaped mounting plates;

[0011] The circuit breaker is fixedly connected to a protective box on its left side, which is located on the opposite side of two rectangular plates.

[0012] Preferably, the upper and lower inner walls of the protective box are rotatably connected to a bidirectional threaded rod, and a worm gear is fixedly sleeved at the middle position of the outer wall of the bidirectional threaded rod.

[0013] Preferably, a worm is meshed with the right side of the worm gear, and both ends of the worm are rotatably connected to the inner wall of the protective box.

[0014] Preferably, the front end of the worm gear rotatably extends through the front surface of the protective box, and a rotating rod is fixedly connected to the front end of the worm gear.

[0015] Preferably, the outer wall of the bidirectional threaded rod is threaded with two movable sleeves, and the opposing surfaces of the two movable sleeves are fixedly connected to two movable fixing plates.

[0016] Among them, the ends of the four movable fixed plates that are away from the movable sleeve slide through the upper and lower surfaces of the protective box respectively.

[0017] Preferably, the upper and lower surfaces of the protective box are provided with T-shaped fixing plates, and the opposite sides of the two T-shaped fixing plates are respectively fixedly connected to the corresponding movable fixing plates;

[0018] Among them, the two T-shaped fixing plates slide through the inner walls of the corresponding first rectangular slot and second rectangular slot, respectively.

[0019] Preferably, the lower surface of the intelligent module mounting box is provided with connecting wires, and the left side of the circuit breaker is provided with wiring terminals, with the connecting wires and terminals inserted into the wiring terminals.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a circuit breaker that can be connected to an intelligent system, which has the following advantages:

[0022] By setting fixed components, the entire disassembly and installation process of the intelligent module installation box does not require disassembling the circuit breaker body or replacing the entire equipment. This solves the problem of traditional integrated circuit breaker modules requiring complete replacement in case of module failure, significantly reducing maintenance costs and shortening downtime, thus improving the cost-effectiveness of the equipment. Furthermore, as an independent carrier, the intelligent module installation box can be equipped with modules with different functions according to the needs of the intelligent system, such as adding temperature and humidity sensors or upgrading to 5G communication units, without replacing the circuit breaker body, further enhancing the compatibility and scalability of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the circuit breaker of this utility model that can be connected to an intelligent system;

[0024] Figure 2 This is a schematic diagram of the wiring terminal of this utility model;

[0025] Figure 3 This is a schematic diagram of the T-shaped groove of this utility model;

[0026] Figure 4 This is a schematic diagram of the second rectangular slot of this utility model.

[0027] In the diagram: 1. Circuit breaker; 2. Rotating rod; 3. Protective box; 4. Intelligent module mounting box; 5. Connecting wire; 6. Terminal block; 7. T-shaped groove; 8. Rectangular plate; 9. First rectangular slot; 10. T-shaped mounting plate; 11. Movable fixing plate; 12. T-shaped fixing plate; 13. Second rectangular slot; 14. Moving sleeve; 15. Worm gear; 16. Bidirectional threaded rod; 17. Worm. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This utility model provides a new technical solution: a circuit breaker that can be connected to an intelligent system, including a circuit breaker 1: the circuit breaker 1 is the core body of the circuit breaker that can be connected to the intelligent system. Two rectangular plates 8, a protective box 3, and a terminal block 6 are fixedly connected to the left side of the circuit breaker 1. A fixing component is provided on the circuit breaker 1. The circuit breaker 1 provides the installation base for all functional components. It is connected to the intelligent module installation box 4 through the fixing component to realize the linkage of the intelligent system. At the same time, it cooperates with the connecting wire 5 through the terminal block 6 to complete the circuit connection and data transmission.

[0030] Rectangular plate 8: Rectangular plate 8 is used to provide the sliding track of T-shaped mounting plate 10 and the snap-fit ​​space of T-shaped fixing plate 12. By cooperating with T-shaped mounting plate 10 and T-shaped fixing plate 12, the initial positioning and final fixation of intelligent module mounting box 4 are achieved.

[0031] T-shaped slide 7: Two T-shaped slides 7 are respectively opened on the left side of the two rectangular plates 8. The inner walls of the two T-shaped slides 7 are slidably connected to T-shaped mounting plates 10. The T-shaped slides 7 provide sliding guidance for the T-shaped mounting plates 10, ensuring that the T-shaped mounting plates 10 can only be inserted or pulled out along the preset trajectory, avoiding the intelligent module mounting box 4 from shifting during installation, and laying a precise positioning foundation for subsequent fixing.

[0032] First rectangular slot 9: The first rectangular slot 9 provides a locking channel for the T-shaped fixing plate 12, so that the T-shaped fixing plate 12 can pass through the rectangular plate 8 and the T-shaped mounting plate 10 at the same time, thereby locking the two together.

[0033] T-shaped mounting plate 10: The T-shaped mounting plate 10 is a bridge connecting the intelligent module mounting box 4 and the rectangular plate 8. The intelligent module mounting box 4 is initially positioned by sliding into the T-shaped groove 7, and finally fixed by cooperating with the T-shaped fixing plate 12 through the second rectangular slot 13.

[0034] Second rectangular slot 13: The second rectangular slot 13 corresponds to the first rectangular slot 9, providing secondary snap-fit ​​space for the T-shaped fixing plate 12, so that the T-shaped fixing plate 12 can lock the rectangular plate 8 and the T-shaped mounting plate 10 at the same time, thereby enhancing the fixing stability.

[0035] Intelligent module installation box 4: The intelligent module installation box 4 serves as the carrier of the intelligent module. It is connected to the rectangular plate 8 of the circuit breaker 1 through the T-shaped mounting plate 10. It is connected to the terminal block 6 through the connecting line 5 to realize the circuit connection and data transmission between the intelligent module and the circuit breaker 1. It can also be disassembled for maintenance or replacement.

[0036] The intelligent module installation box 4 contains a microcontroller, a high-precision ADC chip, an AC / DC and DC / DC conversion module, a supercapacitor built into the energy storage unit, a wired communication interface, a wireless communication module, sensors and data acquisition components, and environmental and status sensors.

[0037] The microcontroller uses high-performance industrial-grade chips, such as NXP FS32K144HATOMLHT, which supports floating-point operations and DSP instructions, with a maximum frequency of 112MHz, meeting the needs of real-time data processing and complex algorithms. It has a built-in 12-bit ADC (32 channels) to directly acquire voltage and current signals, and integrates a FlexCAN interface to realize industrial bus communication.

[0038] High-precision ADC chips support 24-bit resolution and work with signal conditioning circuits to filter, amplify, and isolate analog signals from sensors. For example, voltage signals are attenuated by a resistor divider before being input to the ADC, while current signals are converted into voltage signals by a Hall sensor (such as ACS724, with an accuracy of ±0.1%).

[0039] The AC / DC and DC / DC conversion modules adopt Xiamen Yaxun Intelligent Link's patented three-stage power supply circuit of AC / DC-DC / DC-LDO, which converts 220V AC power into stable 5V and 3.3V DC voltages. The AC / DC module (such as Mean Well NES-35) achieves primary and secondary isolation, the DC-DC module steps down the voltage, and the LDO (such as TILP2950) further filters the voltage to ensure that the power supply ripple is ≤50mV.

[0040] The energy storage unit incorporates a supercapacitor, such as the Meikai 16.2V / 250F module, which maintains module operation for more than 30 seconds during an external power outage, ensuring data storage and communication during faults. The supercapacitor achieves rapid charging and discharging through a charging management circuit (such as the TIBQ25504).

[0041] Wired communication interface

[0042] RS485 bus: Utilizing the MAX485 chip and a high-speed optocoupler (6N137) for electrical isolation, it supports the Modbus RTU protocol and achieves a transmission distance of up to 1200 meters. The circuit design includes a ceramic discharge tube (G301), a TVS diode (SMBJ6.8A), and a resettable fuse (PPTC) for lightning surge protection.

[0043] Ethernet interface: Integrated LAN8720APHY chip, supporting 10 / 100Mbps communication, for local monitoring or connection to cloud platforms.

[0044] Wireless communication module

[0045] 5G communication unit: Utilizing the MAG Smart SRM819W module, it supports the Sub-6GHz band and 400MHz bandwidth, achieving downlink speeds of up to 12.5Gbps. A built-in edge AI processor optimizes signal stability. The antenna is a PCB-printed antenna, with a metal shielding cover reducing electromagnetic interference.

[0046] Wi-Fi / BLE modules, such as the Qualcomm QCA4020, are used for short-range wireless configuration and local networking.

[0047] Sensors and data acquisition components

[0048] Current / voltage sensor

[0049] AC current acquisition: A closed-loop Hall sensor (such as LEMLA25-P, accuracy ±0.2%) is used, supporting a range of 0-500A and a response time of <1μs.

[0050] AC voltage acquisition: The 220V / 380V voltage is attenuated to 0-3V through a resistor divider (accuracy ±0.1%) and input to the MCU's built-in ADC.

[0051] Environmental and Condition Sensors

[0052] Temperature and humidity sensor: Select SHT30 (accuracy ±0.2℃ / ±2%RH) or AHT20, via I... 2 The C interface communicates with the MCU to monitor the internal temperature and humidity of the module in real time.

[0053] Position sensor: A reed switch or Hall effect sensor is used to detect the opening and closing status of the circuit breaker.

[0054] Overvoltage / overcurrent protection circuit

[0055] Surge protection: A MOV (varistor) and a gas discharge tube (GDT) are connected in parallel on the AC input side to discharge lightning surge energy (common mode 10kV / 5kA).

[0056] Short circuit protection: Adopting Jinan Maiwei Intelligent's patented technology, it achieves independent monitoring of branch circuits through the shutdown control module and comparison circuit, with a short circuit response time of <100μs.

[0057] Electromagnetic compatibility (EMC) design

[0058] PCB layout: Digital ground and analog ground are isolated, high-speed signals (such as clock lines) use differential traces, and the outer layer is copper shielded.

[0059] Filtering circuit: A capacitor X (0.1μF) and a common-mode inductor (10mH) are connected in parallel at the power input to suppress conducted interference (≤30dBμV).

[0060] Shielding structure: The module housing is made of galvanized steel plate, and a metal shielding cover is installed at the communication interface to meet the CISPR 32 Class B radiation limit (≤40dBμV / m).

[0061] LED indicator light

[0062] Power status: A solid green LED indicates normal power supply.

[0063] Communication status: A flashing blue LED indicates that data transmission is in progress.

[0064] Fault alarm: The red LED flashes and triggers the buzzer, displaying the fault code on the module display screen (such as a 0.96-inch OLED).

[0065] Protective box 3: Protective box 3 provides a closed installation space for the internal transmission components to prevent external impurities from affecting the transmission accuracy, and at the same time provides sliding support for the movable fixed plate 11 and the T-shaped fixed plate 12.

[0066] Bidirectional threaded rod 16: The bidirectional threaded rod 16 receives power from the worm gear 17 through the worm wheel 15, which drives the two moving sleeves 14 to move in opposite or relative directions, thereby driving the T-shaped fixed plate 12 to lock or unlock.

[0067] Worm Gear 15: Worm gear 15 is used to convert the horizontal rotation of worm 17 into the vertical rotation of bidirectional threaded rod 16, realize the power direction conversion, and ensure that the moving sleeve 14 can move axially along the bidirectional threaded rod 16.

[0068] Worm 17: Worm 17 is the transmission medium. It receives the power from rotating rod 2 and transmits it to worm wheel 15, which drives the bidirectional threaded rod 16 to rotate. At the same time, the worm and worm wheel structure has self-locking properties to prevent the bidirectional threaded rod 16 from rotating on its own after it is fixed.

[0069] Rotating rod 2: Rotating rod 2 is fixedly connected to the front end of worm gear 17. Rotating rod 2 is located on the front side of protective box 3. Rotating rod 2 provides a force-applying component for the operator. By rotating rotating rod 2, worm gear 17 is driven to rotate synchronously, thereby activating the transmission unit and realizing the movement of T-shaped fixed plate 12. The operation is convenient and labor-saving.

[0070] Movable sleeve 14: The movable sleeve 14 moves synchronously with the rotation of the bidirectional threaded rod 16 through threaded transmission, converting the rotation of the bidirectional threaded rod 16 into its own axial movement, thereby driving the movable fixed plate 11 and the T-shaped fixed plate 12 to move synchronously.

[0071] Movable fixing plate 11: The movable fixing plate 11 is used to connect the movable sleeve 14 and the T-shaped fixing plate 12, and transmits the moving power of the movable sleeve 14 to the T-shaped fixing plate 12, so as to ensure that the T-shaped fixing plate 12 can slide synchronously along the surface of the protective box 3.

[0072] T-shaped fixing plate 12: The T-shaped fixing plate 12 is the core locking component. By simultaneously penetrating the first rectangular slot 9 and the second rectangular slot 13, it firmly locks the T-shaped mounting plate 10 in the T-shaped slide groove 7, thereby fixing the smart module mounting box 4. When unlocking, it can be disengaged from the slot simply by moving it in the opposite direction.

[0073] Connection line 5: Connection line 5 is used to realize the circuit connection and data transmission between circuit breaker 1 and intelligent module, so that intelligent module can collect the operating data of circuit breaker 1 in real time and receive control commands from intelligent system.

[0074] Terminal block 6: Terminal block 6 is fixedly connected to the left side of circuit breaker 1. Connecting wire 5 is snapped into the inner wall of terminal block 6. Terminal block 6 provides a detachable plug-in interface for connecting wire 5, avoiding the disassembly difficulties caused by circuit welding in traditional integrated structures, facilitating quick disconnection when disassembling intelligent module installation box 4, and ensuring conductivity and stability during connection.

[0075] Furthermore, when using the circuit breaker that can be connected to the intelligent system, first move the intelligent module mounting box 4, which integrates the intelligent module, toward the circuit breaker 1, so that the two T-shaped mounting plates 10 on the right side of the intelligent module mounting box 4 are aligned with the T-shaped grooves 7 on the two rectangular plates 8 on the left side of the circuit breaker 1, respectively. Then slide the T-shaped mounting plates 10 along the inner wall of the T-shaped grooves 7 until the intelligent module mounting box 4 moves to the left side of the circuit breaker 1. This step achieves the initial positioning of the intelligent module mounting box 4 through the cooperation of the T-shaped mounting plates 10 and the T-shaped grooves 7, while ensuring that the protective box 3 is between the opposite faces of the two rectangular plates 8 to avoid interference between components during subsequent fixing.

[0076] After initial positioning is completed, the rotating rod 2 on the front side of the protective box 3 is rotated. The rotating rod 2 drives the worm 17 fixedly connected to it to rotate on the inner wall of the protective box 3. Since the worm 17 and the worm wheel 15 on the bidirectional threaded rod 16 mesh with each other, the rotation of the worm 17 will be converted into the rotation of the worm wheel 15, which in turn drives the bidirectional threaded rod 16 to rotate synchronously between the upper and lower inner walls of the protective box 3. Due to the thread transmission characteristics, the two movable sleeves 14 on the outer wall of the bidirectional threaded rod 16 will move in opposite directions. The movable sleeves 14 drive the movable fixed plate 11 fixed to them to move synchronously, which in turn pushes the T-shaped fixed plate 12 to slide out along the upper and lower surfaces of the protective box 3.

[0077] By continuing to rotate the rotating rod 2, the T-shaped mounting plate 10 penetrates the inner wall of the first rectangular slot 9 and the second rectangular slot 13, thus fixing the two T-shaped mounting plates 10.

[0078] Among them, the T-shaped fixing plate 12 simultaneously engages with the first rectangular slot 9 and the second rectangular slot 13 in a double fixing structure, which can firmly lock the T-shaped mounting plate 10 in the T-shaped sliding groove 7, thereby making the intelligent module mounting box 4 stably fixed on the left side of the circuit breaker 1. This not only ensures the connection stability between the intelligent module and the circuit breaker body, but also provides a convenient channel for subsequent module disassembly.

[0079] Once fixed, one end of the connecting wire 5 on the lower surface of the intelligent module mounting box 4 is connected to the terminal block of the intelligent module inside the box, and the other end is snapped into the terminal block 6 on the left side of the circuit breaker 1. Through the detachable snap-fit ​​connection between the connecting wire 5 and the terminal block 6, the circuit connection and data transmission between the circuit breaker 1 and the intelligent module are realized. The intelligent module can collect the operating data of the circuit breaker in real time and upload it to the intelligent system through the communication unit. At the same time, the intelligent system can send control commands to the circuit breaker through this connection to complete the intelligent linkage function. The detachable wiring method avoids the disassembly difficulties caused by the circuit welding in the integrated structure.

[0080] When the intelligent module malfunctions, it is not necessary to replace the entire circuit breaker 1. Only the intelligent module mounting box 4 needs to be repaired or replaced separately. First, rotate the rotating rod 2 in the reverse direction. The worm gear 17 drives the worm wheel 15 to rotate in the reverse direction. The bidirectional threaded rod 16 rotates in the reverse direction at the same time. The two moving sleeves 14 move in opposite directions, causing the T-shaped fixing plate 12 to exit from the first rectangular slot 9 and the second rectangular slot 13, thus releasing the fixation of the T-shaped mounting plate 10. Then, pull the intelligent module mounting box 4 forward so that the T-shaped mounting plate 10 slides out along the T-shaped slide groove 7. The intelligent module mounting box 4 can then be removed separately for fault repair or direct replacement with a new intelligent module mounting box 4.

[0081] Once the repair or replacement is completed, repeat the above installation steps to complete the reset and installation of the intelligent module.

[0082] By setting fixed components, the entire disassembly and installation process of the intelligent module installation box 4 does not require disassembling the circuit breaker 1 body or replacing the entire equipment. This solves the problem of the traditional integrated circuit breaker module requiring complete replacement in case of module failure, significantly reducing maintenance costs and shortening maintenance downtime, thus improving the cost-effectiveness of the equipment. Furthermore, as an independent carrier, the intelligent module installation box 4 can be equipped with modules with different functions according to the needs of the intelligent system, such as adding temperature and humidity sensors or upgrading the 5G communication unit, without replacing the circuit breaker body, further enhancing the compatibility and scalability of the equipment.

[0083] Example 1: Replacement of the original T-shaped fixing plate with a corrosion-resistant composite T-shaped fixing plate 12

[0084] In a chemical workshop's power distribution system, the air contains corrosive acids and alkalis. The original metal T-shaped fixing plate 12 was prone to rust. Using the original T-shaped fixing plate 12 exposed the following core problems: First, the metal material was corroded and rust appeared on the surface, which easily scratched the groove wall when inserted into the slot, resulting in an increased fixing gap. Second, corrosion reduced the strength of the fixing plate, and after long-term use, it deformed and could not fit tightly into the slot, causing slight shaking of the intelligent module installation box. Third, rust products accumulated in the slot, causing the T-shaped fixing plate 12 to get stuck when inserting and removing the inner walls of the second rectangular slot 13 and the first rectangular slot 9. Finally, when replacing the module, the inner walls of the second rectangular slot 13 and the first rectangular slot 9 had to be cleaned repeatedly, prolonging the operation time. At this time, the original T-shaped fixing plate 12 was replaced with a corrosion-resistant composite T-shaped fixing plate. The material of the T-shaped fixing plate was changed to glass fiber reinforced plastic, the surface of the fixing plate was sprayed with polytetrafluoroethylene anti-corrosion coating, the insertion end was rounded and chamfered, an elastic rubber strip was added to the side that contacts the slot, and a slag discharge groove was reserved at the bottom.

[0085] The elastic rubber strip fills the gaps and prevents loosening and displacement. The rubber strip uses its elasticity to fill the tiny gaps between the fixing plate and the slot. There is no relative displacement during vibration. Even with long-term use, the fixing plate will not fail due to deformation. It is suitable for vibration scenarios of workshop equipment and improves the reliability of fixing.

[0086] The chamfered slag discharge makes insertion and removal easy, improving replacement efficiency. The rounded chamfer guides the smooth insertion of the fixing plate, and the slag discharge groove can remove the impurities accumulated in the slot. Insertion and removal are smooth without jamming, eliminating the need to repeatedly clean the slot. It is suitable for the need to replace intelligent modules regularly, shortening maintenance time.

[0087] Example 2: Replacing the original T-shaped fixing plate with a reinforced load-bearing T-shaped fixing plate 12

[0088] In an industrial control workshop, a heavy-duty intelligent module integrating multiple sensors was used. The original T-shaped fixing plate 12 was insufficient in load-bearing capacity, and there were obvious problems when using the original T-shaped fixing plate 12: First, the module was heavy, and long-term load-bearing caused the middle of the fixing plate to bend, increasing the gap between the T-shaped mounting plate and the slide. Second, after bending, the fixing plate was subjected to uneven stress, and the edge of the slot was severely worn, shortening its service life. Third, the center of gravity of the module shifted, and the connecting wires and terminals were easy to fall off during vibration, affecting data transmission. At this time, the original T-shaped fixing plate 12 was replaced with a reinforced load-bearing T-shaped fixing plate. The thickness of the base material was increased to 1.5 times that of the original, triangular reinforcing ribs were added to both sides of the fixing plate, and anti-slip rubber pads were pasted on the bottom where it contacts the slot. The insertion end was designed with a stepped design.

[0089] Thick base material and triangular reinforcing ribs enhance bending strength, the fixing plate has no central bending phenomenon, the center of gravity of the heavy module is always in the center, the connection with the circuit breaker is stable, it is suitable for industrial scenarios with heavy modules weighing more than 5kg, and avoids loosening caused by center of gravity shift.

[0090] The stepped insertion end increases the contact area with the card slot, disperses pressure, prevents localized wear on the edge of the card slot, and maintains the fitting accuracy between the fixing plate and the card slot over a long period of time. This meets the needs of long-term heavy-duty use and reduces the frequency of component replacement.

[0091] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker connectable to an intelligent system, comprising a circuit breaker (1), characterized in that: The circuit breaker (1) is provided with a fixing component, which includes two rectangular plates (8). Both rectangular plates (8) are fixedly connected to the left side of the circuit breaker (1), and T-shaped grooves (7) are opened on the left side of both rectangular plates (8). Among them, the upper and lower surfaces of the two rectangular plates (8) are provided with first rectangular slots (9), and the four first rectangular slots (9) are respectively connected to the interior of the corresponding T-shaped sliding grooves (7); The inner walls of the two T-shaped grooves (7) are slidably connected to T-shaped mounting plates (10), and the two T-shaped mounting plates (10) are provided with second rectangular slots (13).

2. The circuit breaker capable of connecting to an intelligent system according to claim 1, characterized in that: The left side of the two T-shaped mounting plates (10) is fixedly connected to the intelligent module mounting box (4); Among them, a protective box (3) is fixedly connected to the left side of the circuit breaker (1), and the protective box (3) is located on the opposite side of the two rectangular plates (8).

3. The circuit breaker capable of connecting to an intelligent system according to claim 2, characterized in that: The upper and lower inner walls of the protective box (3) are rotatably connected to a two-way threaded rod (16), and a worm gear (15) is fixedly sleeved at the middle position of the outer wall of the two-way threaded rod (16).

4. A circuit breaker capable of connecting to an intelligent system according to claim 3, characterized in that: The right side of the worm gear (15) is meshed with a worm (17), and both the front and rear ends of the worm (17) are rotatably connected to the inner wall of the protective box (3).

5. A circuit breaker capable of connecting to an intelligent system according to claim 4, characterized in that: The front end of the worm (17) rotates through the front surface of the protective box (3), and a rotating rod (2) is fixedly connected to the front end of the worm (17).

6. A circuit breaker capable of connecting to an intelligent system according to claim 3, characterized in that: The outer wall of the bidirectional threaded rod (16) is threaded with two movable sleeves (14), and the opposing surfaces of the two movable sleeves (14) are fixedly connected with two movable fixing plates (11). Among them, the ends of the four movable fixing plates (11) that are away from the movable sleeve (14) slide through the upper and lower surfaces of the protective box (3).

7. A circuit breaker capable of connecting to an intelligent system according to claim 2, characterized in that: The upper and lower surfaces of the protective box (3) are provided with T-shaped fixing plates (12), and the opposite sides of the two T-shaped fixing plates (12) are respectively fixedly connected to the corresponding movable fixing plates (11); Among them, the two T-shaped fixing plates (12) slide through the inner walls of the corresponding first rectangular slot (9) and second rectangular slot (13).

8. A circuit breaker capable of connecting to an intelligent system according to claim 2, characterized in that: The lower surface of the intelligent module installation box (4) is provided with a connecting wire (5), and the left side of the circuit breaker (1) is provided with a terminal block (6). The connecting wire (5) is inserted into the terminal block (6).

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