An intelligent switch for dual load circuit protection

Abstract

This utility model relates to an intelligent switch for dual-load circuit breaking protection, comprising a housing, within which, from left to right, are arranged a first partition groove, a first mounting groove, a second mounting groove, and a second partition groove. An operating part protrudes from the top of the housing and is mounted on a PCB board. A leakage electromagnetic ring is provided in the first mounting groove. A spring assembly is provided at each of the upper and lower ends of the second mounting groove. A set of moving contact assemblies is provided on the same end face on the right side of each of the two spring assemblies. A set of stationary contact assemblies is provided on the first and second wire exit portions of the second mounting groove facing the moving contact assemblies. A push plate is slidably connected to the second mounting groove, with two spring assemblies respectively connected to the upper and lower ends of the push plate. A driving mechanism is provided in the second mounting groove. Both the leakage electromagnetic ring and the driving mechanism are connected to the PCB board. This utility model aims to achieve a highly integrated intelligent switch structure, enabling unconditional simultaneous disconnection of the live and neutral wires in the circuit upon detection of a short circuit or electric shock (leakage).

Description

Technical Field

[0001] This utility model relates to the field of intelligent switch technology, and in particular to an intelligent switch for dual-load circuit breaker protection. Background Technology

[0002] Currently, air switches and residual current devices (RCDs) are commonly used as safety protection devices in civil and industrial low-voltage power distribution systems. Traditional circuit breakers are mainly used to prevent line overload and short circuits, but they usually only disconnect the live wire. If improper installation or system faults cause the neutral wire to become energized, safety hazards still exist. While RCDs can effectively detect leakage current, their core function is not to handle short-circuit faults, and they also mostly employ a single-pole disconnect design.

[0003] Some existing technologies integrate overload, short circuit protection and leakage protection functions, but their internal structure is complex and the cost is high. Furthermore, because the size of smart switches sold on the market is regulated, the internal space of the switch is limited. If an additional circuit breaking function for the neutral wire is required, the number of circuit breaking protection components in the smart switch needs to be doubled, which is difficult to achieve within the size limit of the switch.

[0004] Therefore, it is necessary to redesign the specific structure of the smart switch within a limited space to obtain a smart switch that is urgently needed in the market, with a compact structure, stable and rapid response, thereby improving the safety of electricity use and maintenance. Utility Model Content

[0005] The main purpose of this utility model is to provide an intelligent switch for dual-load circuit breaker protection, which aims to make the structure of the intelligent switch highly integrated, so as to unconditionally disconnect the live wire and the neutral wire in the circuit simultaneously when a short circuit or electric shock (leakage) abnormality is detected.

[0006] To achieve the above objectives, this utility model proposes an intelligent switch for dual-load circuit breaker protection, comprising a housing, wherein a first partition groove, a first mounting groove, a second mounting groove, and a second partition groove are provided sequentially from left to right inside the housing, and an operating part protrudes from the top of the housing, and a third mounting groove for mounting a PCB board is formed between the inner wall of the operating part, the first mounting groove, and the second mounting groove.

[0007] The first partition groove has a first inlet and a second inlet on its upper and lower sides, respectively. The second partition groove has a first outlet and a second outlet on its upper and lower sides, respectively. The first mounting groove has a leakage electromagnetic ring sleeved on the first inlet and the second inlet. The upper and lower ends of the second mounting groove are each provided with a spring assembly for connecting to the first inlet or the second inlet. The same end face on the right side of both spring assemblies is provided with a set of moving contact assemblies. The ends of the first outlet and the second outlet away from the outer periphery of the housing are both located on the side of the corresponding spring assembly with a moving contact assembly, and a set of stationary contact assemblies is provided facing the moving contact assembly.

[0008] A pusher is slidably connected to the right side of the second mounting slot. The two spring assemblies are respectively connected to the upper and lower ends of the pusher. The second mounting slot is provided with a drive mechanism for driving the pusher to move the moving contact assembly in a direction close to or away from the stationary contact assembly. The leakage electromagnetic ring and the drive mechanism are both connected to the PCB board. When the leakage electromagnetic ring detects an abnormal working signal, the PCB board outputs a reverse working signal relative to the drive mechanism, so that the drive mechanism can drive the pusher to disconnect the connection between the two sets of moving contact assemblies and the corresponding two sets of stationary contact assemblies in a timely manner.

[0009] In one embodiment of this application, the driving mechanism includes a coil assembly arranged parallel to the push plate and an armature assembly connected to one side of the push plate. The armature assembly is located between the coil assembly and the push plate and has a permanent magnet inside. The second mounting groove has a limiting cavity for limiting the movement path of the armature assembly relative to the armature assembly. The end of the coil assembly is connected to a yoke, and one end of the yoke faces the armature assembly.

[0010] In one embodiment of this application, a rotating shaft is provided inside the limiting cavity, and the armature assembly is rotatably connected to the rotating shaft. The N pole and S pole of the permanent magnet in the armature assembly are arranged in a direction from left to right or from right to left. Connectors connected to the N pole or S pole of the permanent magnet protrude from the left and right sides of the end of the armature assembly facing the yoke, respectively. The yoke has a connecting portion protruding from the connecting portion. The push plate has a limiting groove in the left and right direction relative to the armature assembly, and a reinforcing portion protrudes from the armature assembly facing the push plate. The reinforcing portion is connected to the limiting groove.

[0011] In one embodiment of this application, the second mounting groove is provided with a mounting cavity relative to the coil assembly, and the two spring assemblies are connected to the outer periphery of the mounting cavity. The coil assembly includes a wire frame connected to the upper and lower ends of the mounting cavity, and an iron core disposed in the wire frame and parallel to the push plate. The upper and lower ends of the wire frame are provided with pins for connecting to the PCB board. Both the upper and lower ends of the wire frame are provided with yokes, and the yokes are provided with limiting protrusions facing the inner wall of the mounting cavity.

[0012] Both the upper and lower ends of the armature assembly are provided with connectors.

[0013] In one embodiment of this application, the reed assembly includes a plurality of stacked diverter plates, the moving contact assembly is disposed at one end of the plurality of diverter plates, and the plurality of diverter plates are coaxially provided with a buffer protrusion on the side where the moving contact assembly is disposed, the buffer protrusion being arc-shaped.

[0014] In one embodiment of this application, the moving contact assembly includes a connecting moving contact and a protective moving contact spaced apart, and the stationary contact assembly has at least two connecting stationary contacts, which respectively correspond to the connecting moving contact and the protective moving contact; the distance between the protective moving contact and the connecting stationary contact is less than the distance between the connecting moving contact and the connecting stationary contact.

[0015] In one embodiment of this application, the first incoming line, the second incoming line, the first outgoing line, and the second outgoing line are all manganese copper mutual inductors, and the manganese copper mutual inductors are provided with a plurality of manganese copper sampling points connected to the PCB board at intervals.

[0016] In one embodiment of this application, the housing includes an interconnected mounting plate and a sealing plate, and an inlet isolation plate and an outlet isolation plate are respectively provided between the mounting plate and the sealing plate and on the left and right sides of the housing, and a plurality of manganese copper mutual inductors are respectively passed through the inlet isolation plate and the outlet isolation plate;

[0017] The mounting plate, the inlet isolation plate, and the sealing plate are connected sequentially on the left side of the housing, forming a first inlet hole and a second inlet hole; the mounting plate, the outlet isolation plate, and the sealing plate are connected sequentially on the left side of the housing, forming a first outlet hole and a second outlet hole.

[0018] In one embodiment of this application, both sides of the inlet isolation plate and both sides of the outlet isolation plate are connected to terminal blocks, and multiple terminal blocks are respectively inserted into the first inlet hole, the second inlet hole, the first outlet hole, and the second outlet hole; each manganese copper mutual inductor sheet has an anti-slip part at its end and is correspondingly inserted into a terminal block.

[0019] In one embodiment of this application, a groove for mounting a smart switch is provided through the lower part of the housing, and a buckle is provided on one side of the groove facing the other side of the groove.

[0020] By adopting the above technical solution, this utility model has the following advantages:

[0021] The smart switch has an internal cavity inside its outer casing. Different circuit components can be installed through this cavity to simultaneously disconnect the live wire and neutral wire in the circuit in the event of a short circuit, leakage, or electric shock in the circuit connected to the smart switch, ensuring user safety. The inner cavity of the casing has interconnected first partition slot, first mounting slot, second mounting slot, and second partition slot along the left and right directions. The first partition slot and the second partition slot are used to install the live wire circuit and the neutral wire circuit, respectively. Specifically, the live wire circuit can be a first inlet and a first outlet or a second inlet and a second outlet, and the neutral wire circuit can be a second inlet and a second outlet or a first inlet and a first outlet. The two partition slots facilitate the installation and fixing of the live wire circuit and the neutral wire circuit, while also separating the two circuits to ensure the stability of their operation.

[0022] The protruding operating section on the top of the housing can be used to install a power switch and multiple display units, including a power indicator, a distribution network indicator, an over / under voltage protection indicator, and a downlink circuit indicator. With the operating section protruding, the space between the inner wall of the operating section and the two mounting slots increases, forming a third mounting slot. This third mounting slot can be used to install the main control PCB board inside the smart switch. The aforementioned power switch and multiple display units are all connected to the PCB board, enabling efficient and stable control. Furthermore, the PCB board can be configured with a remote connection unit, allowing users to remotely connect to the smart switch using external electronic devices, remotely control it, and monitor the circuit status connected to the smart switch, effectively improving the user experience.

[0023] A leakage electromagnetic ring is installed in the first mounting slot, simultaneously fitting onto both the live wire and neutral wire circuits. It is used to detect circuit abnormalities. When an abnormality occurs, the magnetic field balance within the leakage electromagnetic ring is disrupted, causing current to flow through it. This allows the PCB board to detect the current and provide feedback based on the current condition. To simultaneously disconnect the live and neutral wires in case of an abnormality, two spring assemblies are installed at the upper and lower ends of the second mounting slot. These spring assemblies are connected to the live and neutral wire inlets, respectively. On the same side of the other end of each spring assembly... The device includes a moving contact assembly. A pusher plate is provided in the second mounting groove facing the upper and lower spring assemblies. The ends of the two spring assemblies are connected to the pusher plate. The ends of the two outlets of the live wire and neutral wire are both inserted into the second mounting groove and are located on the side of the end face of the two spring assemblies where the moving contact assembly is located. The ends of the two outlets are both provided with stationary contact assemblies facing the moving contact assembly. When the pusher plate moves toward one outlet, it can drive the two spring assemblies, so that the moving contact assembly is connected to the corresponding stationary contact assembly. With the cooperation of the pusher plate and the spring assembly, the two circuits of the live wire and neutral wire can be connected or disconnected simultaneously.

[0024] To enable this process to be fully automated, a drive mechanism connected to the push plate is provided in the second mounting slot. The drive mechanism is also connected to the PCB board. When the circuit is normal, the drive mechanism works normally, connecting the moving contact assembly to the corresponding stationary contact assembly, so that the live wire and neutral wire are stably connected at the same time. The drive mechanism can be a push rod structure, which can easily achieve the above process. When the PCB board detects a problem in the circuit, the push rod structure changes its working state due to the change in the current direction. It can pull the push plate to separate the moving contact assembly from the corresponding stationary contact assembly by the two spring assemblies, so as to disconnect the live wire and neutral wire, which can effectively reduce safety hazards. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the intelligent switch for dual-load circuit breaker protection according to this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the intelligent switch for dual-load circuit breaker protection according to this utility model;

[0028] Figure 3 This is a schematic diagram of the drive mechanism of the intelligent switch for dual-load circuit breaker protection according to this utility model.

[0029] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0030] Figure 5 This is a schematic diagram of the mounting plate of the intelligent switch for dual-load circuit breaker protection according to this utility model;

[0031] Figure 6 This is a schematic diagram of the sealing sheet of the intelligent switch for dual-load circuit breaker protection according to this utility model;

[0032] Figure 7 This is a schematic diagram of the coil assembly of the intelligent switch for dual-load circuit breaker protection according to this utility model;

[0033] Figure 8 This is a schematic diagram of the manganese-copper mutual inductor sheet of the intelligent switch used for dual-load circuit breaker protection according to this utility model.

[0034] Figure 9This is an exploded view of the reed assembly of the intelligent switch for dual-load circuit breaking protection according to this utility model.

[0035] Figure 10 This is a schematic diagram of the incoming isolation plate of the intelligent switch for dual-load circuit breaker protection according to this utility model.

[0036] Explanation of icon numbers:

[0037] 1. Housing; 11. Mounting plate; 12. Sealing plate; 13. Inlet isolation plate; 14. Outlet isolation plate; 15. Terminal block; 16. Slide groove; 2. First partition groove; 21. First inlet section; 22. Second inlet section; 3. Manganese copper mutual inductor sheet; 31. Manganese copper sampling point; 32. Anti-slip part; 4. First mounting groove; 41. Leakage electromagnetic ring; 5. Second mounting groove; 51. Spring assembly; 52. Diverter plate; 53. Buffer protrusion; 54. Moving contact assembly; 5 5. Connecting moving contact; 56. Protecting moving contact; 57. Push plate; 58. Restricting cavity; 6. Drive mechanism; 61. Coil assembly; 62. Wire frame; 63. Pin; 64. Yoke; 65. Iron core; 66. Armature assembly; 67. Connector; 68. Reinforcing part; 7. Second dividing groove; 71. First wire outlet; 72. Second wire outlet; 73. Stationary contact assembly; 74. Connecting stationary contact; 8. Operating part; 81. Third mounting groove; 9. PCB board.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0040] The following is in conjunction with the appendix Figures 1 to 10 The present invention will be further described below.

[0041] To achieve the above objectives, this utility model proposes an intelligent switch for dual-load circuit breaker protection, comprising a housing 1, wherein a first partition groove 2, a first mounting groove 4, a second mounting groove 5, and a second partition groove 7 are provided in the housing 1 from left to right, and an operating part 8 is provided on the upper part of the housing 1, wherein a third mounting groove 81 for mounting a PCB board 9 is formed between the inner wall of the operating part 8, the first mounting groove 4, and the second mounting groove 5.

[0042] The first dividing groove 2 has a first inlet 21 and a second inlet 22 on its upper and lower sides respectively. The second dividing groove 7 has a first outlet 71 and a second outlet 72 on its upper and lower sides respectively. The first mounting groove 4 has a leakage electromagnetic ring 41 sleeved on the first inlet 21 and the second inlet 22. The upper and lower ends of the second mounting groove 5 are respectively provided with a spring assembly 51 for connecting to the first inlet 21 or the second inlet 22. The same end face on the right side of the two spring assemblies 51 is provided with a set of moving contact assemblies 54. The ends of the first outlet 71 and the second outlet 72 away from the outer periphery of the housing 1 are both located on the side of the corresponding spring assembly 51 where the moving contact assembly 54 is provided, and a set of stationary contact assemblies 73 is provided facing the moving contact assembly 54.

[0043] A push plate 57 is slidably connected to the right side of the second mounting slot 5. Two spring assemblies 51 are respectively connected to the upper and lower ends of the push plate 57. The second mounting slot 5 is provided with a drive mechanism 6 for driving the push plate 57 to move the moving contact assembly 54 in the direction of approaching or moving away from the stationary contact assembly 73. The leakage electromagnetic ring 41 and the drive mechanism 6 are both connected to the PCB board 9. When the leakage electromagnetic ring 41 detects an abnormal working signal, the PCB board 9 outputs a reverse working signal relative to the drive mechanism 6, so that the drive mechanism 6 can drive the push plate 57 in time to disconnect the connection between the two sets of moving contact assemblies 54 and the corresponding two sets of stationary contact assemblies 73.

[0044] The outer shell 1 of the smart switch has an internal cavity. Different circuit components can be installed in the internal cavity to simultaneously disconnect the live wire and neutral wire in the circuit when there is a short circuit, leakage, or electric shock in the circuit connected to the smart switch, thus ensuring the user's safety. The internal cavity of the shell 1 has a first partition groove 2, a first mounting groove 4, a second mounting groove 5, and a second partition groove 7 that are interconnected along the left and right direction. The first partition groove 2 and the second partition groove 7 are used to install the live wire circuit and the neutral wire circuit, respectively. Specifically, the live wire circuit can be a first inlet part 21 and a first outlet part 71 or a second inlet part 22 and a second outlet part 72. The neutral wire circuit can be a second inlet part 22 and a second outlet part 72 or a first inlet part 21 and a first outlet part 71. The two partition grooves facilitate the installation and fixing of the live wire circuit and the neutral wire circuit, and at the same time, they can separate the two circuits to ensure the stability of the operation of the two circuits.

[0045] The operating section 8 protruding from the top of the housing 1 can be used to install a power switch and multiple display units, including a power indicator light, a distribution network indicator light, an over / under voltage protection indicator light, and a downlink circuit indicator light. With the operating section 8 protruding, the space between the inner wall of the operating section 8 and the two mounting slots increases, forming a third mounting slot 81. The main control PCB board 9 inside the smart switch can be installed in the third mounting slot 81. The aforementioned power switch and multiple display units are all connected to the PCB board 9, enabling efficient and stable control. Simultaneously, the PCB board 9 can be configured with a remote connection unit, allowing users to remotely connect to the smart switch using external electronic devices, remotely control it, and understand the circuit status connected to the smart switch, effectively improving the user experience.

[0046] A leakage electromagnetic ring 41 is provided in the first mounting slot 4. The leakage electromagnetic ring 41 is simultaneously fitted onto the live wire circuit and the neutral wire circuit. It is used to detect whether there is an abnormality in the circuit. When there is an abnormality, the magnetic field balance in the leakage electromagnetic ring 41 will be broken, resulting in a current in the leakage electromagnetic ring 41. This allows the PCB board 9 to detect the current and provide feedback based on the current status. In order to disconnect the neutral wire and the live wire at the same time when an abnormality occurs, two spring assemblies 51 are provided at the upper and lower ends in the second mounting slot 5. The two spring assemblies 51 are respectively connected to the inlet of the live wire and the neutral wire, and a moving contact assembly 54 is provided on the same side of the other end of the spring assembly 51. A pusher 57 is provided in the second mounting groove 5 facing the upper and lower spring assemblies 51. The ends of the two spring assemblies 51 are connected to the pusher 57. The ends of the two outlets of the live wire and the neutral wire are both inserted into the second mounting groove 5 and are both located on the side of the end face of the two spring assemblies 51 where the moving contact assembly 54 is located. The ends of the two outlets are both provided with stationary contact assemblies 73 facing the moving contact assembly 54. When the pusher 57 moves toward one outlet, it can drive the two spring assemblies 51, so that the moving contact assembly 54 is connected to the corresponding stationary contact assembly 73. With the cooperation of the pusher 57 and the spring assembly 51, the two circuits of the live wire and the neutral wire can be connected or disconnected at the same time.

[0047] To enable this process to be fully automated, a drive mechanism 6 connected to the push plate 57 is provided in the second mounting slot 5. The drive mechanism 6 is also connected to the PCB board 9. When the circuit is normal, the drive mechanism 6 works normally, connecting the moving contact assembly 54 to the corresponding stationary contact assembly 73, so that the live wire and the neutral wire are stably connected at the same time. The drive mechanism 6 can be a push rod structure, which can easily realize the above process. When the PCB board 9 detects a problem in the circuit, the push rod structure changes its working state due to the change in the current direction. It can pull the push plate 57 to separate the moving contact assembly 54 from the corresponding stationary contact assembly 73 with the two spring assemblies 51, so as to disconnect the live wire and the neutral wire, which can effectively reduce safety hazards.

[0048] Meanwhile, the PCB board 9 can have a built-in power supply to drive the drive mechanism 6 after the smart switch confirms the power is off, thus ensuring the stability of the entire smart switch operation.

[0049] In one embodiment of this application, the drive mechanism 6 includes a coil assembly 61 arranged parallel to the push plate 57 and an armature assembly 66 connected to one side of the push plate 57. The armature assembly 66 is located between the coil assembly 61 and the push plate 57 and has a permanent magnet inside. The second mounting groove 5 has a limiting cavity 58 for limiting the movement path of the armature assembly 66 relative to the armature assembly 66. The end of the coil assembly 61 is connected to a yoke 64, and one end of the yoke 64 faces the armature assembly 66.

[0050] The coil assembly 61 is the core driving component of the drive mechanism 6. According to the right-hand screw theorem, when the current direction in the coil is different, the N pole and S pole at both ends of the coil will be opposite. With the help of the PCB board 9, the coil assembly 61 can quickly adjust the direction of the magnetic poles. The end of the coil is provided with a yoke 64, which can guide the magnetism to the armature assembly 66. The armature assembly 66 is provided with a permanent magnet. The yoke 64 is located at the upper end and / or lower end of the armature assembly 66.

[0051] In one feasible embodiment, the permanent magnet in the armature assembly 66 is arranged in the vertical direction, and the second mounting groove 5 is provided with a limiting cavity 58 for the armature assembly 66 to slide up and down. By changing the current direction of the coil assembly 61, the armature assembly 66 can drive the pusher 57 to move, thereby causing the smart switch to disconnect or connect in both directions, which can effectively improve the flexibility and safety of the smart switch.

[0052] In one embodiment of this application, a rotating shaft is provided in the limiting cavity 58, and the armature assembly 66 is rotatably connected to the rotating shaft. The N pole and S pole of the permanent magnet in the armature assembly 66 are arranged in a direction from left to right or from right to left. Connectors 67 connected to the N pole or S pole of the permanent magnet are respectively provided on the left and right sides of the end of the armature assembly 66 facing the yoke 64. The yoke 64 is provided with a connecting part relative to the connecting part 67. The push plate 57 is provided with a limiting groove in the left and right direction relative to the armature assembly 66. The armature assembly 66 is provided with a reinforcing part 68 protruding from the push plate 57. The reinforcing part 68 is connected to the limiting groove.

[0053] In another feasible embodiment of this application, a rotating shaft is provided in the limiting cavity 58, and the armature assembly 66 rotates on the rotating shaft. The N pole and S pole of the permanent magnet in the armature assembly 66 are arranged in a direction from left to right or from right to left. The side of the armature assembly 66 facing the yoke 64 is provided with connectors 67 at both ends, which can extend the magnetism of the permanent magnet. The yoke 64 is also provided with a connecting part. The magnetism on the two connectors 67 is different. When the coil assembly 61 changes the current direction, the armature assembly 66 will turn under the action of the connecting part and the connector 67. Under this structure, the connecting part and the corresponding polarity connector 67 can attract each other, which can ensure the stability of the connection and ensure the stability of the state of the smart switch.

[0054] In one embodiment of this application, the second mounting groove 5 is provided with a mounting cavity relative to the coil assembly 61, and two spring assemblies 51 are connected to the outer periphery of the mounting cavity. The coil assembly 61 includes a wire frame 62 connected to the upper and lower ends of the mounting cavity, and an iron core 65 disposed in the wire frame 62 and parallel to the push plate 57. The upper and lower ends of the wire frame 62 are provided with pins 63 for connecting with the PCB board 9. Both the upper and lower ends of the wire frame 62 are provided with yokes 64, and the yokes 64 are provided with limiting protrusions facing the inner wall of the mounting cavity.

[0055] Both the upper and lower ends of the armature assembly 66 are provided with connectors 67.

[0056] The outer wall of the mounting cavity can separate the drive mechanism 6 and the spring assembly 51 to prevent them from being connected to each other and to avoid safety hazards. At the same time, the mounting cavity and the second mounting groove 5 can separate the space for installing the spring assembly 51, so that the spring assembly 51 can be installed stably.

[0057] The coil assembly 61 structurally includes a wire frame 62 for fixing and setting cables, an iron core 65 for assisting in generating magnetism, and pins 63 on the wire frame 62 for allowing cables to be connected to the PCB board 9 via cables. Yokes 64 are provided at both the upper and lower ends of the wire frame 62. Limiting protrusions can stably fix the coil assembly 61. Connectors 67 are provided at both the upper and lower ends of the armature assembly 66 to improve the force strength of the armature assembly 66 when switching states, ensure the stable rotation of the armature assembly 66, improve the connection, power-off speed and stability of the smart switch, improve the user experience and ensure safety.

[0058] In one embodiment of this application, the reed assembly 51 includes a plurality of stacked diverter plates 52, and a moving contact assembly 54 passes through one end of the plurality of diverter plates 52. The plurality of diverter plates 52 are coaxially provided with a buffer protrusion 53 on the side where the moving contact assembly 54 is provided. The buffer protrusion 53 is arc-shaped.

[0059] Multiple shunt plates 52 can ensure the electrical conduction stability of the reed assembly 51, and the buffer protrusion 53 can make the deformation of the entire reed assembly 51 have good stability.

[0060] In one embodiment of this application, the moving contact assembly 54 includes a connecting moving contact 55 and a protective moving contact 56 spaced apart, and the stationary contact assembly 73 is provided with at least two connecting stationary contacts 74, which correspond to the connecting moving contact 55 and the protective moving contact 56 respectively; the distance between the protective moving contact 56 and the connecting stationary contact 74 is less than the distance between the connecting moving contact 55 and the connecting stationary contact 74.

[0061] When the moving contact assembly 54 is connected to the stationary contact assembly 73, a momentary electric arc is generated between them, causing contact damage and oxidation. Prolonged use can lead to poor contact and malfunction of the smart switch. To solve this problem, the moving contact assembly 54 includes a connecting moving contact 55 and a protective moving contact 56 spaced apart. The stationary contact assembly 73 has at least two connecting stationary contacts 74, and the distance between the protective moving contact 56 and the connecting stationary contacts 74 is less than the distance between the connecting moving contact 55 and the connecting stationary contacts 74. When the switch is closed, the protective moving contact 56 will first connect with a connecting stationary contact 74, generating an electric arc and causing wear. The push plate will continue to push, connecting the connecting moving contact 55 to another connecting stationary contact 74. Before this, the reed assembly 51 has been stably connected to the outlet. After this, the connection between the connecting moving contact 55 and the other connecting stationary contact 74 will not generate an electric arc. Through this structure, the smart switch can always have two sets of moving and stationary contacts for connecting the live wire and the neutral wire without wear, which can ensure the stability of the smart switch operation.

[0062] The same principle applies to disconnection. When the moving contact 55 is connected, it first separates from the stationary contact 74. At this time, the spring is still connected, so no arc will be generated that could cause damage. Then, the subsequent protective moving contact 56 will separate from the other stationary contact 74. When an arc is generated between the two, it can effectively protect the moving contact 55 and the stationary contact 74, enabling them to work stably and effectively improving the service life of the smart switch.

[0063] In one embodiment of this application, the first inlet section 21, the second inlet section 22, the first outlet section 71, and the second outlet section 72 are all manganese copper mutual inductors 3, and the manganese copper mutual inductors 3 are provided with a plurality of manganese copper sampling points 31 connected to the PCB board 9 at intervals.

[0064] The first inlet section 21, the second inlet section 22, the first outlet section 71, and the second outlet section 72 are all manganese-copper mutual inductors 3. These manganese-copper mutual inductors 3 have higher sensitivity, which can ensure the stability of the data measured by the PCB board 9 through multiple manganese-copper sampling points 31, improve the testing accuracy of the smart switch, and thus respond at the fastest speed when a circuit fault occurs.

[0065] In one embodiment of this application, the housing 1 includes an interconnected mounting plate 11 and a sealing plate 12. An inlet isolation plate 13 and an outlet isolation plate 14 are respectively provided between the mounting plate 11 and the sealing plate 12 and on the left and right sides of the housing 1. A plurality of manganese copper mutual inductors 3 are respectively passed through the inlet isolation plate 13 and the outlet isolation plate 14.

[0066] Mounting plate 11, inlet isolation plate 13, and sealing plate 12 are connected sequentially on the left side of housing 1, forming a first inlet hole and a second inlet hole; mounting plate 11, outlet isolation plate 14, and sealing plate 12 are connected sequentially on the left side of housing 1, forming a first outlet hole and a second outlet hole.

[0067] The entire smart switch can be encapsulated by mounting plate 11 and sealing plate 12. For the convenience of setting the first inlet hole, the second inlet hole, the first outlet hole, and the second outlet hole on both sides, an inlet isolation plate 13 and an outlet isolation plate 14 are provided to ensure that the hole positions are stable and formed quickly.

[0068] In one embodiment of this application, both sides of the inlet isolation plate 13 and both sides of the outlet isolation plate 14 are connected to terminal blocks 15, and multiple terminal blocks 15 are respectively inserted into the first inlet hole, the second inlet hole, the first outlet hole, and the second outlet hole; each manganese copper mutual inductor sheet 3 has an anti-slip part 32 at its end, and is correspondingly inserted into a terminal block 15.

[0069] The terminal block 15 facilitates wiring. Each manganese copper current transformer 3 has an anti-slip part 32 at its end, which can ensure the stability of the wiring. The terminal block 15 is located in the first inlet hole, the second inlet hole, the first outlet hole, and the second outlet hole, which can ensure that the entire smart switch is easy to use.

[0070] In one embodiment of this application, a groove 16 for mounting to a guide rail for installing a smart switch is provided through the lower part of the housing 1, and a buckle is provided on one side of the groove 16 facing the other side of the groove 16.

[0071] The smart switch has a slide groove 16 at the bottom of the housing 1. Since multiple smart switches can be installed side by side using guide rails, the slide groove 16 makes it easy to install and adjust the smart switch. The buckle on one side of the slide groove 16 can more stably fix the housing 1 on the guide rail. Through the above structure, the smart switch can protect the user and make the entire smart switch easy to install and maintain.

[0072] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An intelligent switch for dual load circuit protection comprising a housing, characterized in that, The housing is provided with a first partition groove, a first mounting groove, a second mounting groove, and a second partition groove from left to right. An operating part protrudes from the top of the housing. A third mounting groove for mounting a PCB board is formed between the inner wall of the operating part, the first mounting groove, and the second mounting groove. The first partition groove has a first inlet and a second inlet on its upper and lower sides, respectively. The second partition groove has a first outlet and a second outlet on its upper and lower sides, respectively. The first mounting groove has a leakage electromagnetic ring sleeved on the first inlet and the second inlet. The upper and lower ends of the second mounting groove are each provided with a spring assembly for connecting to the first inlet or the second inlet. The same end face on the right side of both spring assemblies is provided with a set of moving contact assemblies. The ends of the first outlet and the second outlet away from the outer periphery of the housing are both located on the side of the corresponding spring assembly with a moving contact assembly, and a set of stationary contact assemblies is provided facing the moving contact assembly. A pusher is slidably connected to the right side of the second mounting slot. The two spring assemblies are respectively connected to the upper and lower ends of the pusher. The second mounting slot is provided with a drive mechanism for driving the pusher to move the moving contact assembly in a direction close to or away from the stationary contact assembly. The leakage electromagnetic ring and the drive mechanism are both connected to the PCB board. When the leakage electromagnetic ring detects an abnormal working signal, the PCB board outputs a reverse working signal relative to the drive mechanism, so that the drive mechanism can drive the pusher to disconnect the connection between the two sets of moving contact assemblies and the corresponding two sets of stationary contact assemblies in a timely manner.

2. The intelligent switch for dual load circuit protection of claim 1, wherein, The driving mechanism includes a coil assembly arranged parallel to the push plate and an armature assembly connected to one side of the push plate. The armature assembly is located between the coil assembly and the push plate and has a permanent magnet inside. The second mounting groove has a limiting cavity for limiting the movement path of the armature assembly relative to the armature assembly. The end of the coil assembly is connected to a yoke, and one end of the yoke faces the armature assembly.

3. The intelligent switch for dual load circuit protection of claim 2, wherein, The limiting cavity is provided with a rotating shaft, and the armature assembly is rotatably connected to the rotating shaft. The N pole and S pole of the permanent magnet in the armature assembly are arranged in a direction from left to right or from right to left. The left and right sides of the end of the armature assembly facing the yoke are respectively provided with connecting parts that are connected to the N pole or S pole of the permanent magnet. The yoke is provided with a connecting part opposite to the connecting parts. The push plate is provided with a limiting groove in the left and right direction opposite to the armature assembly. The armature assembly is provided with a reinforcing part facing the push plate. The reinforcing part is connected to the limiting groove.

4. The intelligent switch for dual load circuit protection of claim 3, wherein, The second mounting slot has a mounting cavity relative to the coil assembly. The two spring assemblies are connected to the outer periphery of the mounting cavity. The coil assembly includes a wire frame connected to the upper and lower ends of the mounting cavity and an iron core arranged in the wire frame parallel to the push plate. The upper and lower ends of the wire frame are provided with pins for connecting to the PCB board. Both the upper and lower ends of the wire frame are provided with yokes. The yokes are provided with limiting protrusions facing the inner wall of the mounting cavity. Both the upper and lower ends of the armature assembly are provided with connectors.

5. The intelligent switch for dual load circuit protection of claim 1, wherein, The reed assembly includes multiple stacked diverter plates, and the moving contact assembly passes through one end of the multiple diverter plates. Each of the multiple diverter plates has a buffer protrusion coaxially protruding on the side where the moving contact assembly is located. The buffer protrusion is arc-shaped.

6. The intelligent switch for dual load circuit protection of claim 1, wherein, The moving contact assembly includes a connecting moving contact and a protective moving contact arranged at intervals. The stationary contact assembly has at least two connecting stationary contacts, which correspond to the connecting moving contact and the protective moving contact, respectively. The distance between the protective moving contact and the connecting stationary contact is less than the distance between the connecting moving contact and the connecting stationary contact.

7. The intelligent switch for dual load circuit protection of claim 1, wherein, The first inlet section, the second inlet section, the first outlet section, and the second outlet section are all manganese copper mutual inductors, and the manganese copper mutual inductors are provided with a plurality of manganese copper sampling points connected to the PCB board at intervals.

8. The intelligent switch for dual load circuit protection of claim 7, wherein, The housing includes an interconnected mounting plate and a sealing plate. An inlet isolation plate and an outlet isolation plate are respectively provided between the mounting plate and the sealing plate and on the left and right sides of the housing. A plurality of manganese copper mutual inductors are respectively passed through the inlet isolation plate and the outlet isolation plate. The mounting plate, the inlet isolation plate, and the sealing plate are connected sequentially on the left side of the housing, forming a first inlet hole and a second inlet hole; the mounting plate, the outlet isolation plate, and the sealing plate are connected sequentially on the left side of the housing, forming a first outlet hole and a second outlet hole.

9. The intelligent switch for dual load circuit protection of claim 8, wherein, Both sides of the inlet isolation plate and both sides of the outlet isolation plate are connected to terminal blocks, and multiple terminal blocks are respectively inserted into the first inlet hole, the second inlet hole, the first outlet hole, and the second outlet hole; each end of the manganese copper mutual inductor sheet is provided with an anti-slip part and is correspondingly inserted into a terminal block.

10. The intelligent switch for dual load circuit protection of claim 1, wherein, The lower part of the housing is provided with a sliding groove for mounting with a guide rail for installing a smart switch, and the housing has a buckle on one side of the sliding groove facing the other side of the sliding groove.

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