A circuit breaker structure with integrated fault monitoring

Abstract

This invention discloses a circuit breaker structure with integrated fault monitoring, belonging to the field of circuit breaker technology. The integrated fault monitoring circuit breaker structure includes a circuit breaker, a monitoring switch assembly mounted on the switch for driving the switch to disconnect the circuit connection, and a power-off assembly mounted on the circuit breaker for disconnecting the connection between the wire and the circuit breaker, thus cutting off the connection between the circuit breaker and the wire. A magnetic field generated by an electromagnetic coil opens the switch when the current is normal, in conjunction with a permanent magnet. When the current value is abnormal, the increased magnetic field drives the switch to close. Simultaneously, a sensor emits an information indicator light, and an alarm sounds. When the switch closes, a piston compresses the air inside the air chamber, thereby driving the top plate to push the fixing block out of the fixing slot and release the connection to the insulating sleeve. Simultaneously, a push rod pushes the insulating sleeve to separate the conductive sheet from the terminal block, preventing the conductive sheet from tightly adhering to the terminal block due to a circuit fault, which could lead to a failure to disconnect the circuit breaker.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and in particular to a circuit breaker structure with integrated fault monitoring. Background Technology

[0002] Medium-voltage circuit breakers are components that have both manual switching functions and automatic short-circuit protection. They are widely used in the power control of feeders at all levels of medium-voltage power distribution systems, various mechanical equipment, and the control and protection of electrical terminals. In particular, intelligent medium-voltage circuit breakers have been widely used in medium-voltage power distribution networks due to their superior performance.

[0003] Chinese patent CN116741594B, authorized and published on November 17, 2023, discloses a novel 5G circuit breaker with built-in fault monitoring. The circuit breaker can be easily removed and replaced by simply using a screwdriver. The fixing bolts contact the wires, and information is transmitted to the user via a 5G information transmission module, facilitating timely detection of loose fixing bolts and thus providing built-in fault monitoring. Simultaneously, in the event of a short circuit or leakage, the switch trips, forming a loop between a pair of conductive blocks, allowing the user to promptly detect the tripped circuit breaker and troubleshoot the line fault. However, this novel 5G circuit breaker with built-in fault monitoring may fail to cut off power when a short circuit occurs. Furthermore, after repair, the switch needs to be manually turned on to check if the repair was successful, which still poses a certain risk. Summary of the Invention

[0004] The purpose of this invention is to provide a device for chamfering and cleaning the edges of photovoltaic cells to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a circuit breaker structure with integrated fault monitoring, comprising: a circuit breaker, a switch mounted on the circuit breaker, a sensor mounted on the circuit breaker for sensing current flow, an alarm mounted on the circuit breaker for alerting staff of circuit abnormalities, an indicator light mounted on the circuit breaker for assisting staff in quick location, a monitoring switch assembly mounted on the switch for driving the switch to disconnect the circuit connection, and a power-off assembly mounted on the circuit breaker for disconnecting the connection between the wire and the circuit breaker, thereby disconnecting the circuit breaker from the wire. The power-off assembly includes a mounting groove, which is located at the bottom of the circuit breaker. A terminal block is mounted on the mounting groove and connected to the circuit breaker. Two sets of mutually rotating insulating sleeves are connected to the mounting groove. Conductive plates are connected to the two sets of insulating sleeves. A terminal frame is connected to the conductive plates. An insulating element is connected to the insulating sleeve. A groove is formed on the insulating sleeve. Multiple sets of rubber blocks are arranged in the groove. A first spring plate is connected to the insulating sleeve. A fixing block is connected to the first spring plate. A fixing groove is formed in the circuit breaker.

[0006] The monitoring switch assembly includes a rotating shaft mounted on the inner wall of the circuit breaker. A permanent magnet is connected to the rotating shaft. An electromagnetic coil is installed in the circuit breaker. A connecting shaft is connected to the rotating shaft. A toothed locking block is connected to the rotating shaft. A locking groove is provided on the connecting shaft. A connecting sleeve is connected to the rotating shaft and the connecting shaft. A limit groove is provided on the connecting sleeve. A limit block is connected to the connecting shaft. A torsion spring is installed in the circuit breaker.

[0007] Furthermore, a tension spring is connected to the rotating shaft, and a connecting ring is connected to the tension spring, with the tension spring connected to the connecting shaft via the connecting ring.

[0008] Furthermore, the connecting shaft forms a telescopic structure with the circuit breaker via a tension spring, and the connecting sleeve is connected to the circuit breaker.

[0009] Furthermore, multiple sets of toothed blocks are evenly spaced along the outer edge of the rotating shaft, and the length of the toothed blocks is greater than the length of the limiting blocks.

[0010] Furthermore, the insulating element is made of a flexible polymer material.

[0011] Furthermore, the power-off assembly also includes an air chamber, which is located inside the circuit breaker. A piston is connected to the air chamber, and a connecting column is connected to the piston. A connecting spring is connected to the air chamber. A venting groove is provided in the circuit breaker. A connecting rod is connected to the circuit breaker, and an inclined plate is connected to the connecting rod. A top plate is connected to the inclined plate.

[0012] Furthermore, the power-off assembly also includes an empty chamber disposed in the circuit breaker, a reset spring connected in the empty chamber, an air inlet on the circuit breaker, a second spring plate connected in the empty chamber, a sealing plate connected in the second spring plate, a sliding groove in the circuit breaker, a push rod connected in the sliding groove, an air outlet in the push rod, and a connecting groove in the sliding groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The circuit breaker structure with integrated fault monitoring can open the switch by cooperating with the permanent magnet when the current is normal through the magnetic field generated by the electromagnetic coil. When the current value is abnormal, the magnetic field increases and drives the switch to close. At the same time, the sensor sends an information indicator light and the alarm will also sound an alarm. When the switch is closed, the piston squeezes the air inside the air chamber, thereby driving the top plate to push the fixing block out of the fixing groove and disconnect the connection to the insulating sleeve. At the same time, the push rod pushes the insulating sleeve to separate the conductive sheet from the terminal block, preventing the conductive sheet from being tightly attracted to the terminal block due to circuit fault, which would lead to the failure of the circuit breaker to cut off power. Attached Figure Description

[0014] Figure 1 This is a side view of the external structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the circuit breaker of the present invention;

[0016] Figure 3 This is a schematic diagram of the interaction between the circuit breaker and the connecting shaft of the present invention;

[0017] Figure 4 This is a schematic diagram of the cooperation structure between the tension spring and the connecting ring of the present invention;

[0018] Figure 5 This is a schematic diagram of the toothed block and the slot of the present invention in mutual cooperation.

[0019] Figure 6 This is a schematic diagram of the interlocking structure of the wiring terminal and the insulating sleeve of the present invention;

[0020] Figure 7 This is a schematic diagram of the interaction between the wiring terminal and the reset spring of the present invention;

[0021] Figure 8 This is a schematic diagram of the interlocking structure of the groove and the rubber block of the present invention;

[0022] Figure 9 This is a schematic diagram of the interaction between the first spring sheet and the fixing block of the present invention;

[0023] Figure 10 This is a schematic diagram of the interlocking structure of the fixing block and the fixing groove of the present invention;

[0024] Figure 11 This is a schematic diagram of the interaction between the second spring sheet and the sealing plate of the present invention;

[0025] Figure 12 This is a schematic diagram of the interlocking structure of the connecting rod and the inclined plate of the present invention;

[0026] Figure 13 This is a schematic diagram of the interaction between the slide and the push rod in this invention;

[0027] Figure 14 For the present invention Figure 7 Enlarged structural diagram at point A in the middle;

[0028] Figure 15 For the present invention Figure 2 Enlarged structural diagram at point B in the middle.

[0029] In the diagram: 1. Circuit breaker; 2. Switch; 3. Sensor; 4. Alarm; 5. Indicator light; 6. Monitoring switch assembly; 601. Shaft; 602. Permanent magnet; 603. Electromagnetic coil; 604. Connecting shaft; 605. Tension spring; 606. Connecting ring; 607. Toothed locking block; 608. Locking groove; 609. Connecting sleeve; 610. Limiting groove; 611. Limiting block; 612. Torsion spring; 7. Power-off assembly; 701. Mounting groove; 702. Terminal block; 703. Insulating sleeve; 704. Conductive sheet; 705. Wiring. Frame; 706, Insulating component; 707, Groove; 708, Rubber block; 709, First spring plate; 710, Fixing block; 711, Fixing groove; 712, Empty chamber; 713, Return spring; 714, Air inlet; 715, Second spring plate; 716, Sealing plate; 717, Air chamber; 718, Piston; 719, Connecting column; 720, Connecting spring; 721, Vent groove; 722, Connecting rod; 723, Inclined plate; 724, Top plate; 725, Slide groove; 726, Push rod; 727, Air outlet; 728, Connecting groove. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0032] Please see Figures 1-15This invention provides a technical solution: a circuit breaker structure with integrated fault monitoring, comprising a circuit breaker 1, a switch 2 mounted on the circuit breaker 1, a sensor 3 mounted on the circuit breaker 1 for sensing current flow, an alarm 4 mounted on the circuit breaker 1 for alerting staff of circuit abnormalities, an indicator light 5 mounted on the circuit breaker 1 for assisting staff in quick location, a monitoring switch assembly 6 mounted on the switch 2 for driving the switch 2 to disconnect the circuit connection, and a power-off assembly 7 mounted on the circuit breaker 1 for disconnecting the wire from the circuit breaker 1, thereby disconnecting the circuit breaker 1 from the wire.

[0033] Please see Figure 3 , Figure 4 and Figure 5 The monitoring switch assembly 6 includes a rotating shaft 601, which is installed on the inner wall of the circuit breaker 1. A permanent magnet 602 is connected to the rotating shaft 601. An electromagnetic coil 603 is installed in the circuit breaker 1. A connecting shaft 604 is connected to the rotating shaft 601. A tension spring 605 is connected to the rotating shaft 601. A connecting ring 606 is connected to the tension spring 605, and the tension spring 605 is connected to the connecting shaft 604 through the connecting ring 606. A toothed locking block 607 is connected to the rotating shaft 601. A locking groove 608 is provided on the connecting shaft 604. A connecting sleeve 609 is connected to the rotating shaft 601 and the connecting shaft 604. A limit groove 610 is provided on the connecting sleeve 609. A limit block 611 is connected to the connecting shaft 604. A torsion spring 612 is installed in the circuit breaker 1.

[0034] In operation, when the main power switch is opened and energizes circuit breaker 1, the magnetic field generated by the electromagnetic coil 603 drives the permanent magnet 602 to rotate the shaft 601. At this time, the tension spring 605 exerts a pulling force on the connecting shaft 604, causing the shaft 601 to rotate synchronously with the connecting shaft 604. Through the engagement between the limit block 611 and the limit groove 610, the connecting shaft 604 drives the connecting sleeve 609 to rotate synchronously, thereby opening switch 2 and applying a torque to the torsion spring 612. When a short circuit occurs, the current value increases to tens of times the normal value. Therefore, the electromagnetic coil 603 generates a magnetic field sufficient to overcome the tension spring 605. This magnetic field then continues to drive the shaft 601 to rotate. When shaft 601 rotates, toothed block 607 presses against the surface of slot 608, and pushes connecting shaft 604 forward through the inclined surface of slot 608, while simultaneously stretching tension spring 605. This causes limit block 611 to slide out of the surface of limit groove 610 and release the limit on connecting sleeve 609. At this time, torsion spring 612 is pushed by force to reset connecting sleeve 609, thus closing switch 2. At the same time, when shaft 601 drives tension spring 605 to rotate, tension spring 605 will rotate on the surface of connecting shaft 604 through connecting ring 606. When switch 2 is closed, it will disengage from the surface of sensor 3. At this time, sensor 3 will emit an information indicator light 5, and alarm 4 will also sound an alarm simultaneously.

[0035] Please see Figure 5 Multiple sets of toothed blocks 607 are evenly spaced along the outer edge of the rotating shaft 601, and the length of the toothed blocks 607 is greater than the length of the limiting block 611.

[0036] In use, before the toothed locking block 607 fully pushes against the locking groove 608, the limiting block 611 can separate from the limiting groove 610. This allows the magnetic field to disappear after the circuit breaker 1 is de-energized, and when the tension spring 605 is pulled by the force to reset the connecting shaft 604, the locking groove 608 will slide along the surface of the toothed locking block 607 and engage with it. At this time, the limiting block 611 will also slide into the interior of the limiting groove 610.

[0037] Please see Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 14 The power-off assembly 7 includes a mounting groove 701, which is located at the bottom of the circuit breaker 1. A terminal block 702 is mounted on the mounting groove 701 and connected to the circuit breaker 1. Two sets of mutually rotating insulating sleeves 703 are connected to the mounting groove 701. A conductive sheet 704 is connected to the two sets of insulating sleeves 703. A terminal bracket 705 is connected to the conductive sheet 704. An insulating element 706 is connected to the insulating sleeve 703. A groove 707 is provided on the insulating sleeve 703. Multiple sets of rubber blocks 708 are provided on the groove 707. A first spring sheet 709 is connected to the insulating sleeve 703. A fixing block 710 is connected to the first spring sheet 709. A fixing groove 711 is provided in the circuit breaker 1.

[0038] In use, after stripping the insulation from the end of the wire to expose the core wire, the core wire is wound around the surface of the terminal block 705, and the wire is placed on the surface of the groove 707. Then, the insulating sleeve 703 is rotated to close the two insulating sleeves 703. At this time, the insulating element 706 will press against the surface of the terminal block 705, thereby fixing the wire core wire. At the same time, the grooves 707 on the surfaces of the two sets of insulating sleeves 703 will also close, causing the rubber blocks 708 on the surface of the grooves 707 to press against the surface of the wire and further fix the wire. After that, the closed insulating sleeves 703 are inserted into the mounting slot 701. Inside the mounting groove 701, the mounting slot 701 will press against the fixing block 710 and push the fixing block 710 and the first spring plate 709 to rotate on the surface of the insulating sleeve 703. When the fixing block 710 moves with the insulating sleeve 703 to the surface of the fixing groove 711 inside the mounting groove 701, the conductive plate 704 will fit against the terminal 702 and push the terminal 702 to slide upward. The first spring plate 709, under the force, pushes the fixing block 710 into the fixing groove 711. When the insulating sleeve 703 is reinstalled after the circuit breaker 1 has been de-energized and repaired, as... Figure 10 As shown, at this time, the top plate 724 will enter the interior of the fixing groove 711, and the fixing block 710 will be stuck above the top plate 724. After power is applied, the top plate 724 will reset, and the fixing block 710 will move downward to the surface of the fixing groove 711.

[0039] Please see Figure 8 The insulating component 706 is made of a flexible polymer material.

[0040] When in use, the insulating component 706 deforms under the force when it is squeezed against the wire core and the terminal block 705. This increases the sealing performance of the clamping between the wire core and the terminal block 705 while reducing damage to the structural rigidity of the wire core.

[0041] Please see Figure 6 , Figure 7 , Figure 10 , Figure 12 , Figure 14 and 15 The power-off assembly 7 also includes an air chamber 717, which is located inside the circuit breaker 1. A piston 718 is connected to the air chamber 717, and a connecting post 719 is connected to the piston 718. A connecting spring 720 is connected to the air chamber 717. A venting groove 721 is provided in the circuit breaker 1. A connecting rod 722 is connected to the circuit breaker 1. An inclined plate 723 is connected to the connecting rod 722, and a top plate 724 is connected to the inclined plate 723.

[0042] When in use, when switch 2 is closed, it pushes piston 718 through connecting post 719 to compress the air inside air chamber 717, and causes connecting spring 720 to contract. The compressed air inside air chamber 717 enters the vent groove 721, thereby pushing connecting rod 722 downward. When connecting rod 722 moves downward, it pushes inclined plate 723 downward simultaneously, causing inclined plate 723 to push top plate 724 to slide into fixed groove 711. Top plate 724 presses against the surface of fixed block 710, thereby pushing fixed block 710 out of fixed groove 711, thus releasing the connection to insulating sleeve 703. When switch 2 is opened, the force on connecting spring 720 pushes piston 718 to reset and draws air back into air chamber 717, thereby pulling connecting rod 722 upward. At the same time, inclined plate 723 pulls top plate 724 out of fixed groove 711.

[0043] Please see Figure 11 and Figure 13The power-off assembly 7 also includes an empty chamber 712 disposed in the circuit breaker 1, a return spring 713 connected in the empty chamber 712, an air inlet 714 opened on the circuit breaker 1, a second spring plate 715 connected on the empty chamber 712, a sealing plate 716 connected on the second spring plate 715, a sliding groove 725 opened in the circuit breaker 1, a push rod 726 connected in the sliding groove 725, an air outlet 727 opened in the push rod 726, and a connecting groove 728 opened in the sliding groove 725.

[0044] In use, when the conductive sheet 704 pushes the terminal 702 to slide upward inside the empty chamber 712, it stretches the return spring 713 and creates a suction force in the empty chamber 712. At this time, external air enters the air inlet 714 and pushes the sealing plate 716 to rotate around the connection between the second spring sheet 715 and the circuit breaker 1, thereby releasing the restriction on the air inlet 714 and allowing air to enter the empty chamber 712. When the switch 2 is closed and the restriction on the insulating sleeve 703 is released, the return spring 713, under the force, pushes the terminal 702 downward and squeezes the air inside the empty chamber 712. The air inside the empty chamber 712 pushes the insulating sleeve 703 outward, while the air inside the empty chamber 712 enters the slide groove 725 and pushes the push rod 726 downward. At the same time, the bottom end of the push rod 726 applies a pushing force to the insulating sleeve 703, thereby pushing the conductive piece 704 to separate from the terminal 702. This prevents the conductive piece 704 from being tightly attracted to the terminal 702 due to a circuit fault, which would cause the circuit breaker 1 to fail to cut off power. When the top end of the push rod 726 moves to the surface of the connecting groove 728, the excess air inside the empty chamber 712 will enter the air outlet 727 through the connecting groove 728 and be discharged.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A circuit breaker structure with integrated fault monitoring, characterized in that, include: Circuit breaker (1); Switch (2) is installed on circuit breaker (1); Sensor (3) is installed on circuit breaker (1) to sense current flow; An alarm (4) is installed on the circuit breaker (1) to alert staff of circuit abnormalities; Indicator light (5) is installed on circuit breaker (1) to assist staff in quickly locating the circuit; Monitoring switch assembly (6), mounted on switch (2), is used to drive switch (2) to disconnect the circuit connection; The power disconnection assembly (7) is installed on the circuit breaker (1) to disconnect the wire from the circuit breaker (1), thereby disconnecting the circuit breaker (1) from the wire; The power-off assembly (7) includes a mounting slot (701) which is located at the bottom of the circuit breaker (1). A terminal block (702) is mounted on the mounting slot (701) and connected to the circuit breaker (1). Two sets of mutually rotating insulating sleeves (703) are connected to the mounting slot (701). Conductive plates (704) are connected to the two sets of insulating sleeves (703). A terminal frame (705) is connected to the conductive plates (704). An insulating component (706) is connected to the insulating sleeve (703). A groove (707) is provided on the insulating sleeve (703). Multiple sets of rubber blocks (708) are provided on the groove (707). A first spring plate (709) is connected to the insulating sleeve (703). A fixing block (710) is connected to the first spring plate (709). A fixing groove (711) is provided in the circuit breaker (1).

2. The circuit breaker structure with integrated fault monitoring according to claim 1, characterized in that: The monitoring switch assembly (6) includes a rotating shaft (601), which is installed on the inner wall of the circuit breaker (1). A permanent magnet (602) is connected to the rotating shaft (601). An electromagnetic coil (603) is installed in the circuit breaker (1). A connecting shaft (604) is connected to the rotating shaft (601). A toothed locking block (607) is connected to the rotating shaft (601). A locking groove (608) is opened on the connecting shaft (604). A connecting sleeve (609) is connected to the rotating shaft (601) and the connecting shaft (604). A limit groove (610) is opened on the connecting sleeve (609). A limit block (611) is connected to the connecting shaft (604). A torsion spring (612) is installed in the circuit breaker (1).

3. The circuit breaker structure with integrated fault monitoring according to claim 2, characterized in that: A tension spring (605) is connected to the rotating shaft (601), and a connecting ring (606) is connected to the tension spring (605). The tension spring (605) is connected to the connecting shaft (604) through the connecting ring (606).

4. The circuit breaker structure with integrated fault monitoring according to claim 2, characterized in that: The connecting shaft (604) forms a telescopic structure with the circuit breaker (1) through a tension spring (605), and the connecting sleeve (609) is connected to the circuit breaker (1).

5. The circuit breaker structure with integrated fault monitoring according to claim 2, characterized in that: The toothed blocks (607) are arranged in multiple sets at equal intervals along the outer edge of the rotating shaft (601), and the length of the toothed blocks (607) is greater than the length of the limiting block (611).

6. The circuit breaker structure with integrated fault monitoring according to claim 1, characterized in that: The insulating component (706) is made of a flexible polymer material.

7. The circuit breaker structure with integrated fault monitoring according to claim 1, characterized in that: The power-off assembly (7) also includes an air chamber (717), which is located inside the circuit breaker (1). A piston (718) is connected to the air chamber (717), and a connecting column (719) is connected to the piston (718). A connecting spring (720) is connected to the air chamber (717). A venting groove (721) is provided in the circuit breaker (1). A connecting rod (722) is connected to the circuit breaker (1), and an inclined plate (723) is connected to the connecting rod (722). A top plate (724) is connected to the inclined plate (723).

8. The circuit breaker structure with integrated fault monitoring according to claim 1, characterized in that: The power-off assembly (7) also includes an empty chamber (712) disposed in the circuit breaker (1), a return spring (713) connected in the empty chamber (712), an air inlet (714) provided on the circuit breaker (1), a second spring plate (715) connected on the empty chamber (712), a sealing plate (716) connected on the second spring plate (715), a sliding groove (725) provided in the circuit breaker (1), a push rod (726) connected in the sliding groove (725), an air outlet (727) provided in the push rod (726), and a connecting groove (728) provided in the sliding groove (725).

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