Circuit breaker structure integrating fault monitoring

Abstract

The invention discloses a circuit breaker structure integrating fault monitoring, and belongs to the technical field of circuit breakers. The circuit breaker structure integrating fault monitoring comprises a circuit breaker, a monitoring switch assembly installed on a switch and used for driving the switch to disconnect a circuit, and a power-off assembly installed on the circuit breaker and used for separating the connection between an electric wire and the circuit breaker so as to cut off the connection between the circuit breaker and the electric wire. A magnetic field generated by an electromagnetic coil is matched with a permanent magnet to turn on a switch when the current is normal, and when the current value is abnormal, the magnetic field is increased to drive the switch to turn off, meanwhile, a sensor sends out information, an indicating lamp is turned on, and an alarm also sends out an alarm synchronously, and when the switch is turned off, a piston extrudes air in an air bin. And meanwhile, the push rod pushes the insulation sleeve to separate the conducting strip from the wiring terminal, so that the situation that the conducting strip and the wiring terminal are tightly adsorbed due to a circuit fault, and consequently power failure of the circuit breaker is caused is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field related to circuit breakers, and in particular to a circuit breaker structure with integrated fault monitoring. Background Art

[0002] Medium-voltage circuit breakers are components that offer both manual switching and automatic short-circuit protection. They are widely used in feeder lines at all levels of medium-voltage distribution systems, power supply control for various mechanical equipment, and control and protection of power terminals. Intelligent medium-voltage circuit breakers, in particular, have been widely used in medium-voltage distribution networks due to their superior performance.

[0003] Chinese patent CN116741594B, authorized and announced on November 17, 2023, discloses a new type of 5G circuit breaker with built-in fault monitoring. The circuit breaker can be removed and replaced by turning a screwdriver, making the replacement of the circuit breaker more convenient. The fixing bolts are in contact with the wires, and the information is transmitted to the user through the 5G information transmission module, so that it is easy to detect the loosening of the fixing bolts in time, thereby playing a role in built-in fault monitoring of the circuit breaker. At the same time, when a short circuit or leakage occurs, the switch jumps and disconnects, forming a loop between a pair of conductive blocks, so that the user can find the jumping circuit breaker in time and eliminate the line fault in time. However, when the new type of 5G circuit breaker with built-in fault monitoring is in use, when a circuit fault occurs, when a short circuit occurs in the circuit, the circuit breaker may fail to power off, and after the maintenance is completed, in order to check whether the maintenance is normal, it is necessary to manually open the switch, so that there is still a certain risk. Summary of the Invention

[0004] The object of the present invention is to provide a photovoltaic cell edge chamfering and cleaning device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: 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 personnel of circuit abnormalities, an indicator light mounted on the circuit breaker for assisting personnel in quickly locating the fault, a monitoring switch assembly mounted on the switch for driving the switch to disconnect the circuit, and a power-off assembly mounted on the circuit breaker for separating the connection between the wires and the circuit breaker, thereby disconnecting the circuit breaker from the wires.

[0006] The monitoring switch assembly includes a rotating shaft, which is installed 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 tension spring is connected to the rotating shaft, a connecting ring is connected to the tension spring, a toothed block is connected to the rotating shaft, a slot is provided on the connecting shaft, a connecting sleeve is connected to the rotating shaft and the connecting shaft, a limiting slot is provided on the connecting sleeve, a limiting block is connected to the connecting shaft, and a torsion spring is installed in the circuit breaker.

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

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

[0009] Furthermore, a plurality of groups of tooth-shaped clamping blocks are arranged at equal intervals along the outer edge of the rotating shaft, and the length of the tooth-shaped clamping blocks is greater than the length of the limiting blocks.

[0010] Furthermore, the power-off assembly includes a mounting slot, which is opened at the bottom end of the circuit breaker, a wiring terminal is installed on the mounting slot, and the wiring terminal is connected to the circuit breaker, two groups of insulating sleeves that rotate with each other are connected to the mounting slot, the two groups of insulating sleeves are connected to conductive sheets, the conductive sheets are connected to wiring frames, the insulating sleeves are connected to insulating parts, a groove is opened on the insulating sleeve, and multiple groups of rubber blocks are arranged on the groove, a first spring sheet is connected to the insulating sleeve, a fixing block is connected to the first spring sheet, and a fixing slot is opened in the circuit breaker.

[0011] Furthermore, the insulating member is made of a polymer flexible material.

[0012] Furthermore, the power-off assembly also includes an air chamber, which is opened inside the circuit breaker, a piston is connected to the air chamber, a connecting column is connected to the piston, a connecting spring is connected to the air chamber, a ventilation groove is opened in the circuit breaker, a connecting rod is connected to the circuit breaker, an inclined plate is connected to the connecting rod, and a top plate is connected to the inclined plate.

[0013] Furthermore, the power-off assembly also includes an empty chamber arranged in the circuit breaker, a reset spring is connected to the empty chamber, an air inlet is provided on the circuit breaker, a second spring sheet is connected to the empty chamber, a sealing plate is connected to the second spring sheet, a slide groove is provided in the circuit breaker, a push rod is connected to the slide groove, an air outlet is provided in the push rod, and a connecting groove is provided in the slide groove.

[0014] 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 through the magnetic field generated by the electromagnetic coil when the current is normal, and when the current value is abnormal, the increase in the magnetic field will drive the switch to close, and at the same time the information indicator light of the sensor will light up and the alarm will also sound an alarm simultaneously. When the switch is closed, the piston squeezes the air inside the air chamber, thereby driving the top plate to push the fixed block out of the fixed groove and release 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, preventing the conductive sheet from being tightly adsorbed to the terminal due to a circuit fault, thereby causing the circuit breaker to fail to cut off the power. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the side appearance structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the circuit breaker of the present invention; Figure 3 This is a schematic diagram of the structure of the circuit breaker and the connecting shaft cooperating with each other in the present invention; Figure 4 This is a schematic diagram of the structure of the tension spring and the connecting ring cooperating with each other in the present invention; Figure 5 This is a schematic diagram of the structure of the toothed block and the slot cooperating with each other in the present invention; Figure 6 This is a schematic diagram of the structure of the connection terminal and the insulating sleeve cooperating with each other in the present invention; Figure 7 This is a schematic diagram of the structure of the connection terminal and the return spring cooperating with each other in the present invention; Figure 8 This is a schematic diagram of the structure of the groove and the rubber block cooperating with each other in the present invention; Figure 9 This is a schematic diagram of the structure of the first spring piece and the fixing block cooperating with each other in the present invention; Figure 10 This is a schematic diagram of the structure of the fixing block and the fixing groove cooperating with each other in the present invention; Figure 11 This is a schematic diagram of the structure of the second spring piece and the blocking plate cooperating with each other in the present invention; Figure 12 This is a schematic diagram of the structure of the connecting rod and the inclined plate cooperating with each other in the present invention; Figure 13 This is a schematic diagram of the structure of the slideway and the push rod cooperating with each other in the present invention; Figure 14 For the present invention Figure 7 A in the middle is an enlarged structural diagram; Figure 15 For the present invention Figure 2 Enlarged structural diagram at point B in the middle.

[0016] Figure: 1. Circuit breaker; 2. Switch; 3. Sensor; 4. Alarm; 5. Indicator; 6. Monitoring switch assembly; 601. Rotating shaft; 602. Permanent magnet; 603. Electromagnetic coil; 604. Connecting shaft; 605. Tension spring; 606. Connecting ring; 607. Toothed block; 608. Slot; 609. Connecting sleeve; 610. Limiting slot; 611. Limiting block; 612. Torsion spring; 7. Power-off assembly; 701. Mounting slot; 702. Terminal block; 703. Insulating sleeve; 704. Conductive sheet; 705. Wiring Frame; 706, insulating member; 707, groove; 708, rubber block; 709, first spring piece; 710, fixing block; 711, fixing groove; 712, empty chamber; 713, return spring; 714, air inlet; 715, second spring piece; 716, blocking 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 DESCRIPTION

[0017] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] Example 1: Please refer to Figures 1-15 The present invention provides a technical solution: a circuit breaker structure with integrated fault monitoring, a circuit breaker 1, a switch 2 in this case is installed on the circuit breaker 1, a sensor 3 in this case is installed on the circuit breaker 1 for sensing current flow, an alarm 4 in this case is installed on the circuit breaker 1 for alerting staff of circuit abnormalities, an indicator light 5 in this case is installed on the circuit breaker 1 for assisting staff in quickly locating, a monitoring switch assembly 6 in this case is installed on the switch 2 for driving the switch 2 to disconnect the circuit, and a power-off assembly 7 in this case is installed on the circuit breaker 1 for separating the connection between the wire and the circuit breaker 1, thereby disconnecting the circuit breaker 1 from the wire.

[0020] See also Figure 3 、 Figure 4 and Figure 5The 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, a toothed block 607 is connected to the rotating shaft 601, a slot 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 limiting slot 610 is provided on the connecting sleeve 609, a limiting block 611 is connected to the connecting shaft 604, and a torsion spring 612 is installed in the circuit breaker 1.

[0021] During use, when the main switch is turned on and the circuit breaker 1 is energized, the magnetic field generated by the electromagnetic coil 603 drives the permanent magnet 602 to drive the rotating shaft 601 to rotate. At this time, the tension of the tension spring 605 on the connecting shaft 604 causes the rotating shaft 601 to drive the connecting shaft 604 to rotate synchronously, and 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 driving the switch 2 to open and applying a torsion force to the torsion spring 612. When a short circuit occurs in the circuit, the current value will increase to dozens of times the normal value, so the electromagnetic coil 603 will generate a magnetic field sufficient to overcome the tension of the tension spring 605. At this time, the magnetic field continues to drive the rotating shaft 601 to rotate synchronously. The shaft 601 rotates, causing the toothed block 607 to squeeze the surface of the slot 608, and push the connecting shaft 604 forward through the inclined surface of the slot 608 while stretching the tension spring 605, causing the limit block 611 to slide out of the surface of the limit slot 610 and release the limit on the connecting sleeve 609. At this time, the torsion spring 612 is forced to push the connecting sleeve 609 to reset, and the switch 2 can be closed. At the same time, when the rotating shaft 601 drives the tension spring 605 to rotate, the tension spring 605 will rotate on the surface of the connecting shaft 604 through the connecting ring 606. When the switch 2 is closed, it will separate from the surface of the sensor 3. At this time, the information indicator light 5 of the sensor 3 lights up and the alarm 4 will also sound an alarm simultaneously.

[0022] See also Figure 5 There are multiple groups of toothed blocks 607 arranged 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 .

[0023] During use, when the toothed block 607 has not yet fully pushed into the slot 608, the limit block 611 can complete the separation from the limit slot 610, so that after the power is cut off to the circuit breaker 1, the magnetic field disappears, and the tension spring 605 is forced to pull the connecting shaft 604 to reset. The slot 608 will slide along the surface of the toothed block 607 and engage with it. At this time, the limit block 611 will also slide into the interior of the limit slot 610.

[0024] See also Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 14 The power-off assembly 7 includes a mounting slot 701, which is provided at the bottom end of the circuit breaker 1. A terminal block 702 is installed on the mounting slot 701, and the terminal block 702 is connected to the circuit breaker 1. Two sets of insulating sleeves 703 that rotate with each other are connected to the mounting slot 701. Conductive sheets 704 are connected to the two sets of insulating sleeves 703. A wiring frame 705 is connected to the conductive sheet 704. An insulating member 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 slot 711 is provided in the circuit breaker 1.

[0025] When in use, after peeling the head of the wire to expose the core wire, the core wire is wound on the surface of the wiring frame 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 member 706 will squeeze the surface of the wiring frame 705, thereby fixing the core wire of the wire. At the same time, the grooves 707 on the surfaces of the two sets of insulating sleeves 703 will also close, so that the rubber block 708 on the surface of the groove 707 squeezes the surface of the wire and further fixes the wire. Then, the closed insulating sleeve 703 is inserted into the installation slot 701. 709 is pressed against the inside of the mounting groove 701. At this time, the mounting groove 701 squeezes the fixing block 710 and pushes the fixing block 710 and the first spring piece 709 to rotate on the surface of the insulating sleeve 703. When the fixing block 710 moves together with the insulating sleeve 703 to the surface of the fixing groove 711 inside the mounting groove 701, the conductive piece 704 fits with the terminal block 702 and pushes the terminal block 702 to slide upward. The first spring piece 709 is forced to push the fixing block 710 into the inside of the fixing groove 711. When the insulating sleeve 703 is installed again after the circuit breaker 1 is powered off and the maintenance is completed, as shown in FIG. 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 turned on, the top plate 724 will reset, and the fixing block 710 will move downward to the surface of the fixing groove 711.

[0026] See also Figure 8 , the insulating member 706 is made of a polymer flexible material.

[0027] When in use, when the insulating part 706 squeezes the wire core and the terminal frame 705, the insulating part 706 will also deform under the action of the force, which will increase the clamping and sealing of the wire core and the terminal frame 705 while reducing damage to the structural rigidity of the wire core.

[0028] See also 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 opened inside the circuit breaker 1. A piston 718 is connected to the air chamber 717, a connecting column 719 is connected to the piston 718, a connecting spring 720 is connected to the air chamber 717, a ventilation groove 721 is opened 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.

[0029] When in use, when the switch 2 is closed, the piston 718 will be pushed by the connecting column 719 to squeeze the air inside the air chamber 717 and cause the connecting spring 720 to contract. The air inside the air chamber 717 will be squeezed and enter the inside of the vent groove 721, thereby pushing the connecting rod 722 to move downward. When the connecting rod 722 moves downward, it will push the inclined plate 723 to move downward synchronously, so that the inclined plate 723 pushes the top plate 724 to slide toward the inside of the fixed groove 711, so that the top plate 724 squeezes the surface of the fixed block 710, thereby pushing the fixed block 710 to slide out of the inside of the fixed groove 711, and the connection with the insulating sleeve 703 can be released. When the switch 2 is opened, the force of the connecting spring 720 pushes the piston 718 to reset and draws the air back into the inside of the air chamber 717, thereby pulling the connecting rod 722 to move upward and pulling the top plate 724 out of the inside of the fixed groove 711 through the inclined plate 723.

[0030] See also Figure 11 and Figure 13 The power-off assembly 7 also includes an empty chamber 712 arranged in the circuit breaker 1, a reset spring 713 is connected to the empty chamber 712, an air inlet 714 is provided on the circuit breaker 1, a second spring piece 715 is connected to the empty chamber 712, a blocking plate 716 is connected to the second spring piece 715, a slide groove 725 is provided in the circuit breaker 1, a push rod 726 is connected to the slide groove 725, an air outlet 727 is provided in the push rod 726, and a connecting groove 728 is provided in the slide groove 725.

[0031] When in use, when the conductive sheet 704 pushes the terminal block 702 to slide upward inside the empty chamber 712, it stretches the reset spring 713 and creates a suction force in the empty chamber 712. At this time, external air will enter the air inlet 714 and push the blocking plate 716 to rotate along the connection between the second spring sheet 715 and the circuit breaker 1, thereby releasing the limit on the air inlet 714 and allowing air to enter the empty chamber 712. When the switch 2 is closed and the limit on the insulating sleeve 703 is released, the reset spring 713 is forced to push the terminal block 702 downward and squeeze the air inside the empty chamber 712. The air is released, thereby pushing the insulating sleeve 703 outward. At the same time, the air inside the empty chamber 712 enters the interior of the slide groove 725 and pushes the push rod 726 to slide out downward. At the same time, the bottom end of the push rod 726 applies a thrust to the insulating sleeve 703, thereby pushing the conductive sheet 704 and the terminal 702 to separate, preventing the conductive sheet 704 and the terminal 702 from being tightly adsorbed due to a circuit fault, thereby causing a failure to cut off the power to the circuit breaker 1. 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 enters the interior of the air outlet 727 through the connecting groove 728 and is discharged.

[0032] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by 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); 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), is used to alert personnel of circuit abnormalities; An indicator light (5) is installed on the circuit breaker (1) to assist staff in quickly locating the circuit breaker; A monitoring switch assembly (6), mounted on the switch (2), for driving the switch (2) to disconnect the circuit; A power disconnect assembly (7) is mounted on the circuit breaker (1) and is used to disconnect the wire from the circuit breaker (1), thereby disconnecting the circuit breaker (1) from the wire.

2. A circuit breaker structure with integrated fault monitoring according to claim 1, characterized in that: The monitoring switch assembly (6) comprises a rotating shaft (601), the rotating shaft (601) being mounted on the inner wall of the circuit breaker (1), a permanent magnet (602) being connected to the rotating shaft (601), an electromagnetic coil (603) being mounted in the circuit breaker (1), a connecting shaft (604) being connected to the rotating shaft (601), a tension spring (605) being connected to the rotating shaft (601), a connecting ring (606) being connected to the tension spring (605), a toothed block (607) being connected to the rotating shaft (601), a slot (608) being provided on the connecting shaft (604), a connecting sleeve (609) being connected to the rotating shaft (601) and the connecting shaft (604), a limiting slot (610) being provided on the connecting sleeve (609), a limiting block (611) being connected to the connecting shaft (604), and a torsion spring (612) being mounted in the circuit breaker (1).

3. The circuit breaker structure with integrated fault monitoring according to claim 2, characterized in that: The rotating shaft (601) is connected to a tension spring (605), the tension spring (605) is connected to a connecting ring (606), and the tension spring (605) is connected to the connecting shaft (604) via 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) via 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 clamping blocks (607) are arranged in multiple groups at equal intervals along the outer edge of the rotating shaft (601), and the length of the toothed clamping 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 power-off assembly (7) comprises a mounting groove (701), wherein the mounting groove (701) is provided at the bottom end of the circuit breaker (1), a wiring terminal (702) is provided on the mounting groove (701), and the wiring terminal (702) is connected to the circuit breaker (1), two groups of mutually rotatable insulating sleeves (703) are connected to the mounting groove (701), conductive sheets (704) are connected to the two groups of insulating sleeves (703), a wiring frame (705) is connected to the conductive sheets (704), an insulating member (706) is connected to the insulating sleeve (703), a groove (707) is provided on the insulating sleeve (703), a plurality of groups 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), and a fixing groove (711) is provided in the circuit breaker (1).

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

8. The circuit breaker structure with integrated fault monitoring according to claim 6, characterized in that: The power-off assembly (7) further includes an air chamber (717), the air chamber (717) being provided inside the circuit breaker (1), the air chamber (717) being connected to a piston (718), the piston (718) being connected to a connecting column (719), the air chamber (717) being connected to a connecting spring (720), the circuit breaker (1) being provided with a venting groove (721), the circuit breaker (1) being connected to a connecting rod (722), the connecting rod (722) being connected to an inclined plate (723), and the inclined plate (723) being connected to a top plate (724).

9. The circuit breaker structure with integrated fault monitoring according to claim 6, characterized in that: The power-off assembly (7) further includes an empty chamber (712) arranged in the circuit breaker (1), a return spring (713) being connected to the empty chamber (712), an air inlet (714) being provided on the circuit breaker (1), a second spring sheet (715) being connected to the empty chamber (712), a blocking plate (716) being connected to the second spring sheet (715), a chute (725) being provided in the circuit breaker (1), a push rod (726) being connected to the chute (725), an air outlet (727) being provided in the push rod (726), and a connecting groove (728) being provided in the chute (725).

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