An intelligent Internet of Things circuit breaker

By using a gear transmission mechanism and a second linkage mechanism in the intelligent IoT circuit breaker to limit the movement of the switch and connecting the varistor mechanism through contact, the existing air circuit breaker lacks anti-detect mechanism and complex wiring problems are solved, achieving higher safety performance and convenience of use.

CN118197870BActive Publication Date: 2025-06-20GACIA ELECTRICAL APPLIANCE
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Patent Information

Application Number
CN202410453616.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2025-06-20
Estimated Expiration
2044-04-16

AI Technical Summary

Technical Problem

The existing air circuit breakers lack anti-detection mechanisms and use wires to connect varistors, which can easily cause safety accidents and are complex and unstable in wiring.

Method used

An intelligent Internet of Things circuit breaker is designed, using a gear transmission mechanism and a second linkage mechanism to limit the movement of the switch mechanism and prevent mistouching; connecting the varistor mechanism through contact, reducing the number of wires, improving the power transmission efficiency and avoiding the problem of unstable wiring.

Benefits of technology

It effectively prevents safety hazards caused by artificial mistouching, simplifies the wiring process, and improves the safety performance and general utility of the circuit breaker.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an intelligent Internet of Things circuit breaker, belonging to the technical field of distribution protection, which includes a controller housing, a gear transmission mechanism, a live wire connection mechanism, a multi-pole circuit breaking mechanism housing, a first circuit breaking mechanism, a switching mechanism, a varistor mechanism, a second circuit breaking mechanism, a neutral wire connection mechanism, a second linkage mechanism and a circuit board. The gear transmission mechanism is installed at the upper end of the bottom plate of the controller housing, the second linkage mechanism is installed on the bottom plate of the controller housing, the multi-pole circuit breaking mechanism housing is installed below the controller housing, the live wire connection mechanism is installed in the multi-pole circuit breaking mechanism housing, the neutral wire connection mechanism is arranged on the left side of the second circuit breaking mechanism, and the varistor mechanism is installed in the multi-pole circuit breaking mechanism housing. It solves the problem in the prior art that due to the lack of an anti-misoperation mechanism in the existing air circuit breaker and the use of wires to connect varistors, safety accidents are likely to occur. The versatility and safety performance of the circuit breaker are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of distribution protection, and particularly relates to an intelligent Internet of Things circuit breaker. Background Art

[0002] In the generation, transmission, and use of electricity, power distribution is an extremely important link. The power distribution system includes transformers and various high- and low-voltage electrical equipment. The low-voltage circuit breaker is an electrical appliance with a large usage area. The low-voltage circuit breaker is used to prevent electrical appliances from being burned out due to excessive incoming voltage.

[0003] For the low-voltage circuit breakers used at present, including air circuit breakers, oil-immersed circuit breakers, and vacuum circuit breakers, the vacuum circuit breaker is for the 3-10 kV, 50 Hz three-phase AC system, and the voltage range is relatively wide, which is not suitable for enterprise or household electrical protection. The oil-immersed circuit breaker uses transformer oil, which is a petroleum-based liquid and has the possibility of combustion, posing a safety hazard. The existing air circuit breaker generally drives the gear through a motor. When the power is cut off, the motor loses power. At this time, if forced closing is carried out, the gear will be damaged. At the same time, due to the lack of a mechanism to prevent accidental contact with the circuit breaker switch handle, it is easy to cause unsafe accidents. Moreover, when a varistor is installed in the circuit, if it is a multi-circuit, multiple wires are required for connection, which makes the wiring process more complicated and prone to subsequent connection instability problems.

[0004] Therefore, how to provide an intelligent Internet of Things circuit breaker to solve the problems existing in the existing air circuit breaker is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] For this reason, the present invention provides an intelligent Internet of Things circuit breaker to solve the problem of easy occurrence of safety accidents caused by the lack of an anti-misoperation mechanism in the existing air circuit breaker and the use of wires to connect varistors.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention discloses an intelligent Internet of Things circuit breaker, including:

[0008] A controller housing with a hollow interior, and a circuit board is installed in the hollow structure;

[0009] A gear transmission mechanism is installed on the upper end of the bottom plate of the controller housing;

[0010] A second linkage mechanism is installed on the bottom plate of the controller housing, and the second linkage mechanism is arranged on the left side of the gear transmission mechanism;

[0011] The housing of the multi-pole circuit breaker mechanism is installed below the housing of the controller. An installation space is provided inside the housing of the multi-pole circuit breaker mechanism, and a number of partition plates are provided in the installation space;

[0012] A number of first circuit breaker mechanisms are installed on the partition plates;

[0013] A number of second circuit breaker mechanisms are installed on the partition plates, and the second circuit breaker mechanisms are arranged on the left side of the first circuit breaker mechanisms;

[0014] The live wire connection mechanism is installed in the housing of the multi-pole circuit breaker mechanism, and the live wire connection mechanism is arranged on the right side of the first circuit breaker mechanism;

[0015] The neutral wire connection mechanism is installed in the housing of the multi-pole circuit breaker mechanism, and the neutral wire connection mechanism is arranged on the left side of the second circuit breaker mechanism;

[0016] A number of switch mechanisms are installed at one end on the partition plates, and the other ends of the switch mechanisms penetrate through the housing of the multi-pole circuit breaker mechanism;

[0017] The varistor mechanism is installed in the housing of the multi-pole circuit breaker mechanism, and the varistor mechanism is arranged on the right side of the switch mechanism;

[0018] In a possible implementation manner, the first circuit breaker mechanism, the second circuit breaker mechanism, the live wire connection mechanism, and the neutral wire connection mechanism are connected by wires. The varistor mechanism is arranged at the front end of the first circuit breaker mechanism. One end of the varistor mechanism is in contact connection with the first circuit breaker mechanism, and the other end of the varistor mechanism is connected to the live wire connection mechanism by a wire. The live wire connection mechanism and the neutral wire connection mechanism have the same structure.

[0019] In a possible implementation manner, the varistor mechanism includes:

[0020] The mounting plate has a hole groove in the middle, and a number of varistors are arranged in the hole groove;

[0021] The metal plate body is embedded in the mounting plate;

[0022] A number of connecting elastic pieces are installed on the right side of the mounting plate. The left side surface of the connecting elastic piece is attached to the first circuit breaker mechanism, and the right side of the connecting elastic piece is connected with the wire;

[0023] The conducting wires are arranged in pairs. One of the conducting wires is connected between the varistor and the metal plate body, and the other conducting wire is installed between the connecting elastic piece and the varistor.

[0024] In a possible implementation manner, the live wire connection mechanism includes:

[0025] The wiring frame is installed on the inner surface of the right plate body of the multi-pole circuit breaker mechanism housing;

[0026] The terminal post has one end inserted into the front end of the wiring frame;

[0027] One end surface of the wiring board is attached to the inner surface of the wiring frame.

[0028] In a possible implementation manner, the first circuit breaker mechanism includes:

[0029] The magnetic yoke is installed on the partition board, and a coil is arranged in the magnetic yoke;

[0030] The iron core assembly is installed in the magnetic yoke, and the coil is wound outside the iron core assembly;

[0031] One end of the static contact is attached behind one end of the coil;

[0032] The arc extinguishing chamber is installed behind the magnetic yoke;

[0033] The arc guiding plate is installed behind the arc extinguishing chamber. The arc guiding plate is arranged on the partition board. An arc path is formed between the arc guiding plate and the static contact. One end surface of the arc guiding plate is connected to the second circuit breaker mechanism.

[0034] In a possible implementation manner, the second circuit breaker mechanism includes:

[0035] The bimetal bracket is attached to the left end of the first circuit breaker mechanism;

[0036] The bimetal element is connected to the left end of the bimetal bracket;

[0037] One end of the adjusting screw is installed on the left surface of one end of the bimetal element;

[0038] One end of the adjusting spring abuts against the right end of the adjusting screw, and the other end passes through the bimetal bracket and is fixed on the partition board.

[0039] In a possible implementation manner, the switch mechanism includes:

[0040] The first rotating rod passes through the controller housing at the upper end and is inserted into the gear transmission mechanism;

[0041] The handle is sleeved outside the first rotating rod;

[0042] The second rotating rod is installed on the partition board, and a return spring is sleeved outside the second rotating rod;

[0043] The moving contact is sleeved on the second rotating rod;

[0044] A lock catch is sleeved on the second rotating rod, and two ends of the reset spring are connected to the moving contact and the lock catch in sequence;

[0045] A U-shaped connecting rod, with two ends respectively inserted into the lock buckle and the handle;

[0046] A double gold pull rod has one end inserted in the lock buckle and the other end inserted in the partition.

[0047] In a possible implementation, the gear transmission mechanism includes:

[0048] A leakage release assembly is mounted on the bottom plate surface of the controller housing;

[0049] A motor assembly is mounted on the bottom plate surface of the controller housing, the motor assembly is arranged at the rear end of the leakage release assembly, the output end of the motor assembly is transmission-connected to a first worm, and a rack is arranged on the rod body of the first worm;

[0050] A gear assembly, drivingly connected to the front end of the first worm;

[0051] A limiting gear is transmission-connected to the front end of the gear assembly, and an arc-shaped block is connected to the bottom of the limiting gear;

[0052] The second worm gear has its bottom end connected to the switch mechanism, a limiting arc-starting plate is fixed to the outer side of the lower part of the second worm gear body, the side surface of the limiting arc-starting plate abuts against the side surface of one end of the arc block, one end of a limiting metal strip is inserted into the bottom end of the limiting arc-starting plate, and the other end of the limiting metal strip abuts against the side surface of the other end of the arc block.

[0053] In a possible implementation, the second linkage mechanism includes:

[0054] A connecting column is installed on the bottom plate surface of the controller housing, and a linkage rod is sleeved on the outer side of the connecting column;

[0055] A limiting paddle is mounted on the outer surface of the bottom plate of the controller housing, and a limiting lock hole is opened on the surface of the limiting paddle;

[0056] The latch shaft is installed in the limiting paddle, and a magnet is inserted in the latch shaft.

[0057] In a possible implementation, a locking assembly is installed in the limiting lock hole;

[0058] The positioning assembly comprises:

[0059] A storage sleeve is installed in the limiting lock hole, and a telescopic rod is transmission-connected inside the storage sleeve;

[0060] The pull rod has one end installed on the inner surface of the top plate of the telescopic rod, and the other end of the pull rod passes through the bottom plate of the storage sleeve.

[0061] The storage spring is sleeved on the inner side of the pull rod, and the storage spring is installed between the top plate of the pull rod and the bottom plate of the storage sleeve.

[0062] Through the gear transmission mechanism and the second linkage mechanism of the present invention, when it is necessary to perform operations such as circuit breaker maintenance, the gear transmission mechanism and the second linkage mechanism are used to restrict the movement of the switch mechanism, preventing human misoperation of the switch mechanism, resulting in forced closing and damage to the circuit breaker. Moreover, the varistor mechanism and the first breaking mechanism are electrically conducted by contact, reducing the number of wires used. This not only improves the power transmission efficiency but also reduces the operation of manual precision wiring, avoiding the problem of unstable wire connection, and improving the versatility and safety performance of the circuit breaker. Brief Description of the Drawings

[0063] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0064] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present invention. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover.

[0065] Figure 1 It is a three-dimensional view of the intelligent Internet of Things circuit breaker provided by the present invention;

[0066] Figure 2 It is a three-dimensional view of the varistor mechanism provided by the present invention;

[0067] Figure 3 It is a three-dimensional view of the live wire connection mechanism provided by the present invention;

[0068] Figure 4 It is a top view of the first breaking mechanism provided by the present invention;

[0069] Figure 5 It is a top view of the second breaking mechanism provided by the present invention;

[0070] Figure 6A top view of the switch mechanism provided by the present invention;

[0071] Figure 7 A three-dimensional diagram of the gear transmission mechanism provided by the present invention;

[0072] Figure 8 A top view of the second linkage mechanism provided by the present invention;

[0073] Figure 9 A three-dimensional diagram of the latch assembly provided by the present invention;

[0074] In the figure: 1 controller housing; 2 gear transmission mechanism; 21 leakage release assembly; 22 motor assembly; 23 first worm; 24 gear assembly; 25 limit gear; 26 arc block; 27 second worm; 3 live wire connection mechanism; 31 wiring frame; 32 terminal; 33 wiring board; 4 multi-pole circuit breaker housing; 5 first circuit breaker; 51 static contact; 52 arc striker; 53 arc extinguishing chamber; 54 coil; 55 core assembly; 56 yoke; 6 switch mechanism; 61 handle; 62 U-type connecting rod; 63 lock; 64 second rotating rod; 65 double gold pull rod; 66 moving contact head; 67 first rotating rod; 7 varistor mechanism; 71 connecting spring; 72 conductive wire; 73 varistor; 74 metal plate; 75 mounting plate; 8 second circuit breaker mechanism; 81 bimetallic element; 82 adjusting screw; 83 bimetallic bracket; 84 adjusting spring; 9 neutral line connecting mechanism; 10 second linkage mechanism; 101 limiting paddle; 102 magnet; 103 latch shaft; 104 connecting column; 105 linkage rod; 106 limiting lock hole; 11 circuit board; 12 card position assembly; 121 storage sleeve; 122 pull rod; 123 storage spring; 124 telescopic rod. DETAILED DESCRIPTION

[0075] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0076] Please refer to Figures 1 - 9 Now, an intelligent Internet of Things circuit breaker disclosed in the present invention is described. The present invention is composed of eleven parts, such as Figure 1, including a controller housing 1, a gear transmission mechanism 2, a live wire connection mechanism 3, a multi-pole circuit breaker mechanism housing 4, a first circuit breaker mechanism 5, a switch mechanism 6, a varistor mechanism 7, a second circuit breaker mechanism 8, a neutral wire connection mechanism 9, a second linkage mechanism 10, and a circuit board 11. The interior of the controller housing 1 is a hollow structure, in which the circuit board 11 is installed. The gear transmission mechanism 2 is installed at the upper end of the bottom plate of the controller housing 1. The second linkage mechanism 10 is installed on the bottom plate of the controller housing 1 and is arranged on the left side of the gear transmission mechanism 2. The multi-pole circuit breaker mechanism housing 4 is installed below the controller housing 1. An installation space is provided inside the multi-pole circuit breaker mechanism housing 4, and several partitions are arranged in the installation space. Several first circuit breaker mechanisms 5 are installed on the partitions, and several second circuit breaker mechanisms 8 are installed on the partitions. The second circuit breaker mechanism 8 is arranged on the left side of the first circuit breaker mechanism 5. The live wire connection mechanism 3 is installed in the multi-pole circuit breaker mechanism housing 4 and is arranged on the right side of the first circuit breaker mechanism 5. The neutral wire connection mechanism 9 is installed in the multi-pole circuit breaker mechanism housing 4 and is arranged on the left side of the second circuit breaker mechanism 8. One end of several switch mechanisms 6 is installed on the partition, and the other end of the switch mechanism 6 passes through the multi-pole circuit breaker mechanism housing 4. The varistor mechanism 7 is installed in the multi-pole circuit breaker mechanism housing 4 and is arranged on the right side of the switch mechanism 6.

[0077] In this embodiment, the first circuit breaker mechanism 5, the second circuit breaker mechanism 8, the live wire connection mechanism 3, and the neutral wire connection mechanism 9 are connected by wires. The varistor mechanism 7 is arranged at the front end of the first circuit breaker mechanism 5. One end of the varistor mechanism 7 is connected to the first circuit breaker mechanism 5 by contact, and the other end of the varistor mechanism 7 is connected to the live wire connection mechanism 3 by a wire. The live wire connection mechanism 3 and the neutral wire connection mechanism 9 have the same structure.

[0078] When the present invention is in use, the live wire is connected to the live wire connection mechanism 3, and the neutral wire is connected to the neutral wire connection mechanism 9. At this time, the switch mechanism 6 is used for closing operation. When the voltage is too high, the first circuit breaker mechanism 5 and the second circuit breaker mechanism 8 will disconnect the circuit in the entire circuit breaker, and the switch mechanism 6 returns to the initial state. The setting of the varistor mechanism 7 is to reduce the peak voltage of the alternating current and achieve the effect of protecting the electrical appliance. The settings of the gear transmission mechanism 2 and the second linkage mechanism 10 are for when the circuit breaker needs to be repaired or replaced, the entire circuit is controlled externally or manually to complete the mechanical tripping effect, preventing the situation of directly operating the switch mechanism 6 by humans and causing potential safety hazards.

[0079] In a specific embodiment, such as Figure 2, the varistor mechanism 7 includes a connecting spring piece 71, a conducting wire 72, a varistor 73, a metal plate body 74 and a mounting plate 75. A hole groove is formed in the middle of the mounting plate 75, and a plurality of varistors 73 are arranged in the hole groove. The metal plate body 74 is embedded in the mounting plate 75. A plurality of connecting spring pieces 71 are mounted on the right side of the mounting plate 75. The left side surface of the connecting spring piece 71 is attached to the first breaking mechanism 5. A wire is connected to the right side of the connecting spring piece 71. The conducting wires 72 are arranged in pairs. One of the conducting wires 72 is connected between the varistor 73 and the metal plate body 74, and the other conducting wire 72 is mounted between the connecting spring piece 71 and the varistor 73. For the installation of the varistor 73 in a general circuit breaker, it is directly connected by wires. If there are multiple-phase circuits such as N, A, B, and C, 8 wires need to be connected. This process makes the procedures for production personnel cumbersome and is prone to subsequent unstable connections. Therefore, the connecting spring piece 71 and the first breaking mechanism 5 are conductively connected through contact. Moreover, because the area of the connecting spring piece 71 is relatively large, the live wire connecting mechanism 3 can directly input the positive voltage into the connecting spring piece 71 through a wire for power transmission, effectively avoiding the problem that it is inconvenient to connect the wire to the varistor 73. The current loop inside the varistor mechanism 7 is realized through the metal plate body 74.

[0080] In a specific embodiment, such as Figure 3 , the live wire connecting mechanism 3 includes a wiring frame 31, a wiring column 32 and a wiring board 33. The wiring frame 31 is mounted on the inner surface of the right plate body of the multi-pole breaking mechanism housing 4. One end of the wiring column 32 is inserted into the front end of the wiring frame 31. One end surface of the wiring board 33 is attached to the inner surface of the wiring frame 31. When connecting the live wire, generally, it is inserted into the round hole at the front end of the wiring frame 31, and then the wiring column 32 is used to fix the position. The current will be transmitted to the wiring board 33 through the wiring frame 31, and finally, a wire is connected to the wiring board 33 to transmit the current into the varistor mechanism 7 and the first breaking mechanism 5.

[0081] In a specific embodiment, such as Figure 4, the first breaking mechanism 5 includes a static contact 51, an arc guide plate 52, an arc extinguishing chamber 53, a coil 54, an iron core assembly 55 and a yoke 56. The yoke 56 is installed on the partition board. The coil 54 is arranged in the yoke 56. The iron core assembly 55 is installed in the yoke 56. The coil 54 is wound outside the iron core assembly 55. One end of the static contact 51 is attached behind one end of the coil 54. The arc extinguishing chamber 53 is installed behind the yoke 56. The arc guide plate 52 is installed behind the arc extinguishing chamber 53. The arc guide plate 52 is arranged on the partition board. An arc path is formed between the arc guide plate 52 and the static contact 51. One end surface of the arc guide plate 52 is connected to the second breaking mechanism 8. The breaking method of the first breaking mechanism 5 is to generate an electromagnetic effect through the current inside the coil 54. The electromagnetic effect will make the straight rod inside the iron core assembly 55 move along the direction of the electromagnetic force, so that the straight rod pushes the switching mechanism 6 to disconnect the internal circuit of the circuit breaker. At the same time, the arc generated during the short circuit moves along the arc guide plate 52 and the static contact 51 and finally enters the arc extinguishing chamber 53 for arc extinguishing.

[0082] In a specific embodiment, such as Figure 5 , the second breaking mechanism 8 includes a bimetallic element 81, an adjusting screw 82, a bimetal bracket 83 and an adjusting spring 84. The bimetal bracket 83 is attached to the left end of the first breaking mechanism 5. The bimetallic element 81 is connected to the left end of the bimetal bracket 83. One end of the adjusting screw 82 is installed on the left surface of one end of the bimetallic element 81. One end of the adjusting spring 84 abuts against the right end of the adjusting screw 82, and the other end passes through the bimetal bracket 83 and is fixed on the partition board. The breaking method of the second breaking mechanism 8 is to generate high temperature through the current, so that the bimetallic element 81 bends to disconnect the circuit. At the same time, the adjusting screw 82 and the adjusting spring 84 adjust the magnitude of the trigger current.

[0083] In a specific embodiment, such as Figure 6, the switch mechanism 6 includes a handle 61, a U-shaped connecting rod 62, a latch 63, a second rotating rod 64, a bimetal pull rod 65, a moving contact 66 and a first rotating rod 67. The upper end of the first rotating rod 67 passes through the controller housing 1 and is inserted into the gear transmission mechanism 2. The handle 61 is sleeved outside the first rotating rod 67. The second rotating rod 64 is installed on the partition board. A return spring is sleeved outside the second rotating rod 64. The moving contact 66 is sleeved on the second rotating rod 64. The latch 63 is sleeved on the second rotating rod 64. The two ends of the return spring are sequentially connected to the moving contact 66 and the latch 63. The two ends of the U-shaped connecting rod 62 are respectively inserted into the latch 63 and the handle 61. One end of the bimetal pull rod 65 is inserted into the latch 63, and the other end is inserted into the partition board. The U-shaped connecting rod 62 is used for limiting after the handle 61 generates movement. The linkage operation between the switch device 6 and the second linkage mechanism 10 is through a protruding rod on the latch 63. The protruding rod passes through the top of the multi-pole circuit breaker mechanism housing 4. This protruding rod will link multiple switch mechanisms 6 together. At the same time, the protruding rod extends and passes through the controller housing 1, passing through the linkage rod 105 along the way. At this time, after the limiting effect is generated by the second linkage mechanism 10, the linkage rod 105 cannot rotate, which can ensure that the position of the protruding rod remains unchanged, and finally the switch mechanism 6 cannot perform the closing operation.

[0084] In a specific embodiment, such as Figure 7, the gear transmission mechanism 2 includes a leakage trip assembly 21, a motor assembly 22, a first worm 23, a gear assembly 24, a limit gear 25, an arc-shaped block 26 and a second worm 27. The leakage trip assembly 21 is installed on the bottom surface of the controller housing 1. The motor assembly 22 is installed on the bottom surface of the controller housing 1. The motor assembly 22 is arranged at the rear end of the leakage trip assembly 21. The output end of the motor assembly 22 is drivingly connected to a first worm 23. A rack is arranged on the rod body of the first worm 23. The gear assembly 24 is drivingly connected to the front end of the first worm 23. The limit gear 25 is drivingly connected to the front end of the gear assembly 24. The bottom of the limit gear 25 is connected to an arc-shaped block 26. The bottom end of the second worm 27 is connected to the switch mechanism 6. A limit arc-extinguishing plate is fixed on the outer side of the lower part of the rod body of the second worm 27. One side surface of the limit arc-extinguishing plate abuts against one side surface of one end of the arc-shaped block 26. One end of a limit metal bar is inserted into the bottom end of the limit arc-extinguishing plate. The other end of the rod body of the limit metal bar abuts against the other side surface of the arc-shaped block 26. Regarding the gear transmission mechanism 2, when the circuit breaker needs to be overhauled, a breaking operation is performed. Before the breaking operation, since the motor assembly 22 is linked with the entire circuit breaker, the circuit breaker will supply electric energy to the motor assembly 22. At this time, when the breaking operation is performed, the current will cause the motor assembly 22 to rotate, and drive the entire gear set of the gear assembly 24 to operate. The operation of the gear set will affect the limit gear 25, causing it to move. The arc-shaped block 26 carried on the limit gear 25 pushes the limit arc-extinguishing plate to move, causing the second worm 27 connected to the limit arc-extinguishing plate to rotate. The rotation of the second worm 27 guides the connected switch mechanism 6 to rotate and generate a tripping operation. After the breaking, since the motor assembly 22 has no electric energy and cannot operate, if forced closing causes the gears to reverse, resulting in damage to the rack, the limit metal bar abuts against the arc-shaped block 26 to prevent the limit gear 25 from reversing.

[0085] In a specific embodiment, such as Figure 8The second linkage mechanism 10 includes a limiting paddle 101, a magnet 102, a latch shaft 103, a connecting column 104, a linkage rod 105 and a limiting lock hole 106. The connecting column 104 is installed on the bottom plate surface of the controller housing 1, and the linkage rod 105 is sleeved on the outer side of the connecting column 104. The limiting paddle 101 is installed on the outer surface of the bottom plate of the controller housing 1, and a limiting lock hole 106 is opened on the surface of the limiting paddle 101. The latch shaft 103 is installed in the limiting paddle 101, and the magnet 102 is inserted in the latch shaft 103. The arc surface of the limiting paddle 101 is elastic and can be moved. A small arc is set on the arc surface of the limiting paddle 101 so that the small arc can be stuck in the arc hole set in the controller housing 1 to achieve the effect of limiting the limiting paddle 101. The latch shaft 103 limits the position of the linkage rod 105. By limiting the position of the linkage rod 105, the position of the protruding rod is ensured not to change. The protruding rod is set in the switch mechanism 6 to achieve the purpose of limiting the opening and closing operations.

[0086] Based on the same inventive concept, Figure 9 A locking assembly 12 is installed in the limiting lock hole 106, and the locking assembly 12 includes a storage sleeve 121, a pull rod 122, a storage spring 123 and a telescopic rod 124. The storage sleeve 121 is installed in the limiting lock hole 106, and the storage sleeve 121 is internally connected to the telescopic rod 124 by transmission. One end of the pull rod 122 is installed on the inner surface of the top plate of the telescopic rod 124, and the other end of the pull rod 122 passes through the bottom plate of the storage sleeve 121. The storage spring 123 is sleeved on the inner side of the pull rod 122, and the storage spring 123 is installed between the top plate of the pull rod 122 and the bottom plate of the storage sleeve 121. The positioning assembly 12 is used to limit the secondary position of the paddle 101. Because the sliding of the paddle 101 causes a certain amount of wear on its arc surface, when the wear reaches a certain degree, the limiting effect is not obvious. Therefore, the positioning assembly 12 is configured to be configured to be telescopic through the storage sleeve 121 and the telescopic rod 124, so that the telescopic rod 124 is stuck at the edge of the controller housing 1, which effectively plays a limiting role. When the positioning assembly 12 is in use, the telescopic rod 124 is pulled toward the storage sleeve 121 by pulling the pull rod 122. 1 moves inside to release the restriction effect. At this time, the restriction paddle 101 is rotated. When the restriction paddle 101 reaches the specified position, as the telescopic rod 124 moves into the storage sleeve 121, the storage spring 123 is compressed. After reaching the specified position, the pull rod 122 is released. Under the elastic action of the storage spring 123, the storage spring 123 pushes the telescopic rod 124 to move outside the storage sleeve 121. After the storage spring 123 is completely reset, the telescopic rod 124 returns to the initial state before the movement and continues to play a limiting effect.

[0087] Although the present invention has been described in detail above with general descriptions and specific embodiments, on the basis of the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of the present invention claimed.

Claims

1. An intelligent Internet of Things circuit breaker, characterized in that: include: A controller housing (1) having a hollow structure inside, wherein a circuit board (11) is installed in the hollow structure; A gear transmission mechanism (2) mounted on an upper end of a bottom plate of the controller housing (1); A second linkage mechanism (10) is mounted on the bottom plate of the controller housing (1), and the second linkage mechanism (10) is arranged on the left side of the gear transmission mechanism (2); A multi-pole circuit breaker housing (4) is installed below the controller housing (1), an installation space is provided inside the multi-pole circuit breaker housing (4), and a plurality of partitions are provided in the installation space; A plurality of first circuit breaker mechanisms (5) mounted on the partition plate; A plurality of second circuit breaker mechanisms (8) mounted on the partition, wherein the second circuit breaker mechanisms (8) are arranged on the left side of the first circuit breaker mechanisms (5); A live wire connection mechanism (3) installed in the multi-pole circuit breaker housing (4), the live wire connection mechanism (3) being arranged on the right side of the first circuit breaker mechanism (5); A neutral line connection mechanism (9) installed in the multi-pole circuit breaker housing (4), wherein the neutral line connection mechanism (9) is arranged on the left side of the second circuit breaker mechanism (8); A plurality of switch mechanisms (6), one end of which is mounted on the partition plate, and the other end of which passes through the multi-pole circuit breaker housing (4); A varistor mechanism (7) is installed in the multi-pole circuit breaker mechanism housing (4), and the varistor mechanism (7) is arranged on the right side of the switch mechanism (6); The varistor mechanism (7) is arranged at the front end of the first circuit breaker mechanism (5); one end of the varistor mechanism (7) is connected to the first circuit breaker mechanism (5) via a contact, and the other end of the varistor mechanism (7) is connected to the live wire connection mechanism (3) via a wire; the live wire connection mechanism (3) and the neutral wire connection mechanism (9) have the same structure; The varistor mechanism (7) comprises: A mounting plate (75) having a hole groove in the middle, in which a plurality of varistors (73) are arranged; A metal plate body (74) embedded in the mounting plate (75); A plurality of connecting springs (71) are mounted on the right side of the mounting plate (75), the left side of the connecting springs (71) being attached to the first circuit breaker mechanism (5), and the right side of the connecting springs (71) being connected to the wire; Conductive wires (72) are arranged in pairs, wherein one of the conductive wires (72) is connected between the varistor (73) and the metal plate (74), and the other conductive wire (72) is installed between the connecting spring (71) and the varistor (73); The second linkage mechanism (10) comprises: A connecting column (104) is mounted on the bottom surface of the controller housing (1), and a linkage rod (105) is sleeved on the outside of the connecting column (104); A limiting paddle (101) is mounted on the outer surface of the bottom plate of the controller housing (1), and a limiting lock hole (106) is formed on the surface of the limiting paddle (101); A latch shaft (103) is installed in the limiting paddle (101), and a magnet (102) is inserted into the latch shaft (103); A locking assembly (12) is installed in the limiting lock hole (106); The positioning assembly (12) comprises: A storage sleeve (121) is installed in the limiting lock hole (106), and a telescopic rod (124) is transmission-connected inside the storage sleeve (121); A pull rod (122), one end of which is mounted on the inner surface of the top plate of the telescopic rod (124), and the other end of the pull rod (122) passes through the bottom plate of the storage sleeve (121); A storage spring (123) is sleeved on the inner side of the pull rod (122); the storage spring (123) is installed between the top plate of the telescopic rod (124) and the bottom plate of the storage sleeve (121).

2. The intelligent Internet of Things circuit breaker according to claim 1, characterized in that: The first circuit breaker mechanism (5), the second circuit breaker mechanism (8), the live wire connection mechanism (3) and the neutral wire connection mechanism (9) are connected via wires.

3. The intelligent Internet of Things circuit breaker according to claim 1, characterized in that: The live wire connection mechanism (3) comprises: A wiring frame (31) mounted on the inner surface of a right plate of the multi-pole circuit breaker housing (4); A terminal (32), one end of which is inserted into the front end of the terminal frame (31); A wiring board (33) has one end surface attached to the inner surface of the wiring frame (31).

4. The intelligent Internet of Things circuit breaker according to claim 1, characterized in that: The first circuit breaker mechanism (5) comprises: A magnetic yoke (56) is mounted on the partition plate, and a coil (54) is arranged in the magnetic yoke (56); An iron core component (55) is installed in the magnetic yoke (56), and a coil (54) is wound around the outside of the iron core component (55); A stationary contact (51), one end of which is attached behind one end of the coil (54); An arc extinguishing chamber (53) installed behind the magnetic yoke (56); An arc striking plate (52) is installed behind the arc extinguishing chamber (53). The arc striking plate (52) is arranged on the partition plate. An arc path is formed between the arc striking plate (52) and the stationary contact (51). The second circuit breaker mechanism (8) is connected to a surface at one end of the arc striking plate (52).

5. The intelligent Internet of Things circuit breaker according to claim 1, characterized in that: The second circuit breaker mechanism (8) comprises: A double metal bracket (83) attached to the left end of the first circuit breaker mechanism (5); A bimetallic element (81) connected to the left end of the bimetallic bracket (83); An adjusting screw (82), one end of which is mounted on a left surface of one end of the bimetallic element (81); An adjusting spring (84) has one end abutting against the right end of the adjusting screw (82), and the other end passing through the double metal bracket (83) and fixed on the partition.

6. The intelligent Internet of Things circuit breaker according to claim 1, characterized in that: The switch mechanism (6) comprises: A first rotating rod (67), the upper end of which passes through the controller housing (1) and is inserted into the gear transmission mechanism (2); A handle (61) sleeved on the outside of the first rotating rod (67); A second rotating rod (64) is mounted on the partition plate, and a return spring is sleeved on the outer side of the second rotating rod (64); A moving contact (66) sleeved on the second rotating rod (64); A lock buckle (63) is sleeved on the second rotating rod (64), and two ends of the return spring are connected to the moving contact (66) and the lock buckle (63) in sequence; A U-shaped connecting rod (62), both ends of which are respectively inserted into the lock buckle (63) and the handle (61); A double-metal pull rod (65) has one end inserted into the lock buckle (63) and the other end inserted into the partition.

7. The intelligent Internet of Things circuit breaker according to claim 1, characterized in that: The gear transmission mechanism (2) comprises: A leakage release assembly (21) is mounted on the bottom plate surface of the controller housing (1); A motor assembly (22) is mounted on the bottom surface of the controller housing (1), the motor assembly (22) is arranged at the rear end of the leakage release assembly (21), the output end of the motor assembly (22) is drivingly connected to a first worm (23), and a rack is arranged on the rod body of the first worm (23); A gear assembly (24) drivingly connected to the front end of the first worm (23); A limit gear (25) is transmission-connected to the front end of the gear assembly (24); the limit gear (25) is connected to an arc block (26) at the bottom; A second worm gear (27) has a bottom end connected to the switch mechanism (6); a limiting arc-starting plate is fixed to the outer side of the lower portion of the rod body of the second worm gear (27); a side surface of the limiting arc-starting plate abuts against a side surface of one end of the arc block (26); one end of a limiting metal strip is inserted into the bottom end of the limiting arc-starting plate; the other end of the limiting metal strip abuts against a side surface of the other end of the arc block (26).

Citation Information

Patent Citations

  • Electronic residual current operated circuit breaker

    CN112397350A

  • Intelligent circuit breaker

    CN112908791A