A circuit breaker switch system

Abstract

The application discloses a circuit breaker switch system and relates to the technical field of circuit breakers, which comprises a shell, wire-through grooves are formed in the top and bottom of the shell, connecting rings are installed in the wire-through grooves, wire columns are screwed on the side walls of the wire-through grooves, and a rotating disc is inlaid on one side wall of the shell. Through the cooperation of the button, the second electrode sheet, the insulating plate, the mounting seat and the air cooling device and other structures, when the user disconnects the circuit breaker, the insulating plate pushes the second electrode sheet to rotate upwards, rapidly increases the distance between the first electrode sheet and the second electrode sheet, rapidly lengthens the generated electric arc, reduces the electric field intensity between the first electrode sheet and the second electrode sheet, and meanwhile, the air cooling device sends cold air to the gap between the first electrode sheet and the second electrode sheet, strengthens the cooling effect on the electric arc, and tries to avoid the problems that the electric arc easily burns the contacts and the insulation of the circuit breaker, causes phase-to-phase short circuit and electric appliance explosion in serious cases, and causes a fire.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, and in particular to a circuit breaker switching system. Background Technology

[0002] Circuit breakers are characterized by advanced structure, reliable performance, strong breaking capacity, and beautiful and compact appearance. They are used for overload and short circuit protection of lighting, power distribution lines and equipment in office buildings, residences and similar buildings, and can also be used for infrequent switching and connection of lines.

[0003] When the control circuit is switched on or off, the existing circuit breaker generates an extremely hot, bright, and conductive electric arc in the contact gap. Since the arc is mainly generated when the contacts disconnect the circuit, the high temperature will burn the contacts and insulation. In severe cases, it may even cause phase-to-phase short circuits, electrical explosions, and fires. Summary of the Invention

[0004] To address the problem that existing circuit breakers generate electric arcs when the control circuit is disconnected, which can easily burn out the circuit breaker contacts and insulation due to the high temperature generated by the arc, and in severe cases even cause phase-to-phase short circuits, electrical explosions, and fires, this invention provides a circuit breaker switching system.

[0005] This invention provides a circuit breaker switching system, which adopts the following technical solution: A circuit breaker switching system includes a housing, with wire-passing grooves at the top and bottom of the housing. A connecting ring is installed inside the wire-passing groove, and a terminal is screwed onto the side wall of the wire-passing groove. A turntable is embedded in one side wall of the housing, and a connecting shaft is fixedly connected to both ends of the turntable. The turntable is rotatably connected to the housing through the connecting shaft. A button is fixedly connected to the side wall of the turntable located outside the housing. A first electrode plate is fixedly connected to the side wall of the turntable located inside the cavity of the housing. A first connecting wire is fixedly connected to the first electrode plate. The end of the first connecting wire away from the first electrode plate is electrically connected to an electrical connecting ring provided at the bottom of the housing. An arc-shaped insulating plate is fixedly connected to the side wall of the turntable above the first electrode plate. A mounting base is fixedly connected to the inner cavity of the outer shell. A second electrode plate is rotatably connected to the bottom of the mounting base via a torsion spring. A second connecting wire is fixedly connected to the second electrode plate. The end of the second connecting wire away from the second electrode plate is fixedly connected to the electrical connecting ring provided on the top of the outer shell. A wind-cooling device is installed inside the side of the outer shell away from the connecting shaft.

[0006] By adopting the above technical solution, when the user rotates the button to rotate the turntable, thereby moving the first electrode plate upwards to contact with the second electrode plate, the external wires electrically connected by the terminals on the top and bottom of the outer casing form a closed circuit through the contact of the first and second electrode plates, thus supplying power to external electrical devices. When the user needs to disconnect the external electrical devices, they can rotate the button upwards, causing the first electrode plate, which is fixedly installed on the other side of the turntable, to rotate downwards until it separates from the second electrode plate, thereby disconnecting the external electrical device from the power supply. Simultaneously, as the first electrode plate rotates downwards, the insulating plate installed on the turntable above the first electrode plate rotates synchronously. When the insulating plate rotates, it pushes the second electrode plate around its connection with the mounting base. The circuit breaker rotates to rapidly increase the distance between the first and second electrode plates, quickly elongating the arc generated when the first and second electrode plates are disconnected. This reduces the electric field strength between the first and second electrode plates, extinguishing the arc. Simultaneously, a cooling device can be activated to blow cold air vertically between the first and second electrode plates, enhancing the cooling effect on the arc and causing it to quickly diffuse and extinguish. This method minimizes the problem of existing circuit breakers generating an extremely hot, bright, and conductive arc in the contact gap when the control circuit is opened or closed. Since the arc is mainly generated when the contacts disconnect the circuit, the high temperature will burn the contacts and insulation, and in severe cases, it may even cause phase-to-phase short circuits, electrical explosions, and fires.

[0007] Optionally, both ends of the outer casing are provided with cover plates, and screws are provided on the cover plates. The screws pass through the cover plates and are screwed into the outer casing.

[0008] By adopting the above technical solution, cover plates are set at both ends of the outer shell to seal the ends of the outer shell. The connection is made by screw thread, which not only makes the connection stable, but also makes it convenient for users to install and remove the cover plates.

[0009] Optionally, the wire channel includes an upper wire channel formed at the top of the housing and a lower wire channel formed at the bottom of the housing. The connecting ring includes a first connecting ring installed in the inner cavity of the upper wire channel and a second connecting ring installed in the inner cavity of the lower wire channel. The second connecting wire is electrically connected to the first connecting ring, and the first connecting wire is electrically connected to the second connecting ring. The terminal includes a first terminal screwed into the inside of the first connecting ring and electrically connected to the first connecting ring, and a second terminal screwed into the inside of the second connecting ring and electrically connected to the second connecting ring.

[0010] By adopting the above technical solution, when the button is turned to electrically connect the first electrode plate and the second electrode plate, a closed circuit can be formed between the external wire connected to the first terminal and the external wire connected to the second terminal through the first electrode plate and the second electrode plate, thereby controlling the on / off state of the external electrical equipment.

[0011] Optionally, when the button is rotated downwards, the first electrode plate and the second electrode plate are in contact; when the button is rotated upwards, the first electrode plate and the second electrode plate are separated.

[0012] By adopting the above technical solution, a circuit is formed when the first electrode sheet and the second electrode sheet are attached together, and an open circuit is formed when the first electrode sheet and the second electrode sheet are separated.

[0013] Optionally, the insulating plate is made of an insulating material, the insulating plate has an arc-shaped structure, and the end of the insulating plate away from the turntable abuts against the lower surface of the second electrode sheet.

[0014] By adopting the above technical solution, when the user turns the button upward, the rotating disk can drive the insulating plate to rotate downward, and the insulating plate can push the second electrode plate to rotate upward, so that the first electrode plate and the second electrode plate can be quickly separated, and the distance between the first electrode plate and the second electrode plate can be increased.

[0015] Optionally, a sliding hole is provided at the bottom of the outer casing on the side away from the button, and an insert plate is inserted through the inner cavity of the sliding hole. The insert plate is slidably connected to the outer casing through the sliding hole.

[0016] By adopting the above technical solution, when the user installs the casing, he can align the plug plate with the slot opened inside the external distribution box and slide the plug plate down to snap the entire structure into the distribution box.

[0017] Optionally, a plurality of convection grooves are formed on the outer surface of the housing above the sliding hole, and an air inlet is formed on the inner wall of each of the plurality of convection grooves, which communicates with the inner cavity of the housing.

[0018] By adopting the above technical solutions, and setting convection grooves and air inlets, the air-cooling device can draw cold air from the external environment into the inner cavity of the outer shell and deliver it to the gap between the first electrode plate and the second electrode plate, thereby enhancing the cooling effect on the electric arc and causing the electric arc to spread and extinguish rapidly.

[0019] Optionally, the air-cooling device includes a motor disposed in the inner cavity of the housing, a fan blade fixedly connected to the output end of the motor, a rubber ring sleeved around the fan blade, and the rubber ring fixedly connected to the end of the fan blade.

[0020] By adopting the above technical solutions, when the motor is powered on, it can drive the fan blades to rotate, drawing cold air from the external environment into the casing through the air inlet. Rubber rings are fitted around the fan blades to protect them.

[0021] Optionally, a protective cover is fitted on the outer surface of the air-cooling device. The protective cover is fixedly connected to the inner wall of the outer shell. A plurality of connecting rods are provided in the inner cavity of the protective cover. One end of the plurality of connecting rods is fixedly connected to the inner wall of the protective cover, and the other end of the connecting rod is fixedly connected to the outer surface of the motor.

[0022] By adopting the above technical solutions, a protective cover is set up to protect the air-cooling device, and a connecting rod is set up to fix the motor.

[0023] Optionally, a hemispherical air collecting hood is fixedly connected to the protective cover, and an air supply pipe is fixedly connected to the air collecting hood. The end of the air supply pipe away from the air collecting hood is aligned with the connection point of the first electrode plate and the second electrode plate.

[0024] By adopting the above technical solution, when air is drawn into the inner cavity of the protective cover, under the pressure of the air entering the protective cover, the air inside the protective cover can be collected by the air collector and blown into the gap between the first electrode plate and the second electrode plate along the air supply pipe, thereby enhancing the cooling effect on the electric arc and causing the electric arc to spread out and extinguish rapidly.

[0025] In summary, the beneficial effects of this invention are as follows: This invention utilizes the coordinated arrangement of a button, a second electrode plate, an insulating plate, a mounting base, and a cooling device. When the user disconnects the circuit breaker, the insulating plate pushes the second electrode plate upward, rapidly increasing the distance between the first and second electrode plates. This quickly elongates the generated electric arc and reduces the electric field strength between the first and second electrode plates. Simultaneously, the cooling device delivers cold air into the gap between the first and second electrode plates, enhancing the cooling effect on the electric arc. This minimizes the risk of the electric arc burning the circuit breaker contacts and insulation, and in severe cases, preventing phase-to-phase short circuits, electrical explosions, and fires. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure on the back of the outer casing of the present invention; Figure 3 This is a cross-sectional structural diagram of the circuit breaker in the closed state of the present invention; Figure 4 This is a schematic cross-sectional view of the circuit breaker in the open circuit state of the present invention; Figure 5This is a schematic diagram of the connection structure of the turntable, the first electrode plate, and the insulating plate of the present invention; Figure 6 This is a schematic diagram of the connection structure of the air-cooling device of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Cover plate; 3. Screw; 4. Upper wire channel; 5. First connecting ring; 6. Lower wire channel; 7. Second connecting ring; 8. First terminal; 9. Second terminal; 10. Turntable; 11. Connecting shaft; 12. Button; 13. First electrode plate; 14. First connecting wire; 15. Insulating plate; 16. Mounting base; 17. Second electrode plate; 18. Second connecting wire; 19. Sliding hole; 20. Insert plate; 21. Convection channel; 22. Air inlet; 23. Protective cover; 24. Motor; 25. Connecting rod; 26. Fan blade; 27. Rubber ring; 28. Air collector cover; 29. ​​Air supply pipe. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0029] Please see Figure 1-3 A circuit breaker switching system includes a housing 1 that serves both connection and protection functions. The housing 1 has wiring grooves at its top and bottom. A connecting ring is installed inside the wiring groove, and a terminal block is screwed onto the side wall of the wiring groove. When a user winds an external conductor around the terminal block, the terminal block can be screwed into the connecting ring, thereby electrically connecting the connecting ring to the external conductor.

[0030] A turntable 10 is embedded in one side wall of the outer casing 1. Both ends of the turntable 10 are fixedly connected to connecting shafts 11, and the turntable 10 is rotatably connected to the outer casing 1 through the connecting shafts 11. A button 12 is fixedly connected to the outer side wall of the outer casing 1 to facilitate the user to rotate the turntable 10.

[0031] Reference Figure 3 and Figure 4 The turntable 10 is located on one side wall of the inner cavity of the outer shell 1, and a first electrode plate 13 is fixedly connected to the first electrode plate 13. A first connecting wire 14 is fixedly connected to the first electrode plate 13, and the end of the first connecting wire 14 away from the first electrode plate 13 is electrically connected to the electrical connecting ring provided at the bottom of the outer shell 1.

[0032] An insulating plate 15 with an arc structure is fixedly connected to the side wall of the turntable 10 above the first electrode plate 13.

[0033] A mounting base 16 is fixedly connected inside the outer shell 1, and a second electrode plate 17 is rotatably connected to the bottom of the mounting base 16 via a torsion spring. The torsion spring connection allows the second electrode plate 17 to be reset under the restoring force of the torsion spring after it rotates.

[0034] A second connecting wire 18 is fixedly connected to the second electrode plate 17. The end of the second connecting wire 18 away from the second electrode plate 17 is fixedly connected to an electrical connection ring provided on the top of the outer casing 1. When the user rotates the button 12 to drive the turntable 10 to rotate, so that the first electrode plate 13 and the second electrode plate 17 are in contact with each other, the electrical connection between the external wires connected on the top and bottom of the outer casing 1 can form a closed circuit. When the first electrode plate 13 and the second electrode plate 17 are separated from each other, the electrical connection between the external wires connected on the top and bottom of the outer casing 1 is broken.

[0035] An air-cooling device for reducing the temperature of the electric arc formed between the first electrode plate 13 and the second electrode plate 17 is installed inside the outer casing 1 on the side away from the connecting shaft 11.

[0036] When the user turns button 12, causing the turntable 10 to rotate, the first electrode plate 13 moves upward to contact with the second electrode plate 17. The external wires electrically connected to the top and bottom of the housing 1 via terminals form a closed circuit through the contact of the first electrode plate 13 and the second electrode plate 17, thus supplying power to external electrical devices. When the user needs to disconnect the external electrical devices, they can turn button 12 upward. This causes the first electrode plate 13, fixedly mounted on the other side of the turntable 10, to rotate downward until it separates from the second electrode plate 17, disconnecting the external electrical device from the power supply. Simultaneously, as the first electrode plate 13 rotates downward, the insulating plate 15 mounted on the turntable 10 above it rotates synchronously. The rotation of the insulating plate 15 pushes the second electrode plate 17 around it. The connection of seat 16 rotates, rapidly increasing the distance between the first electrode plate 13 and the second electrode plate 17. This rapidly elongates the electric arc generated when the first electrode plate 13 and the second electrode plate 17 are disconnected, thereby reducing the electric field strength between the first electrode plate 13 and the second electrode plate 17 and extinguishing the arc. At the same time, the air-cooling device can be activated to blow cold air vertically between the first electrode plate 13 and the second electrode plate 17, enhancing the cooling effect on the arc and causing it to spread and extinguish rapidly. This avoids the problem of existing circuit breakers generating a ball of extremely high temperature, extremely bright, and conductive electric arc in the contact gap when the control circuit is opened and closed. Since the arc is mainly generated when the contacts are disconnected, the high temperature will burn the contacts and insulation, and in severe cases, it may even cause phase-to-phase short circuits, electrical explosions, and fires.

[0037] Reference Figure 1 Both ends of the outer casing 1 are provided with cover plates 2, and screws 3 are threaded through the cover plates 2 and screwed into the outer casing 1. The cover plates 2 at both ends of the outer casing 1 are used to seal the ends of the outer casing 1. The connection is made by screwing the cover plates 2 with screws 3, which not only ensures a stable connection, but also makes it convenient for users to install and remove the cover plates 2.

[0038] Reference Figure 3 and Figure 4 The wiring channels include an upper wiring channel 4 located at the top of the housing 1 and a lower wiring channel 6 located at the bottom of the housing 1. The connecting rings include a first connecting ring 5 installed in the inner cavity of the upper wiring channel 4 and a second connecting ring 7 installed in the inner cavity of the lower wiring channel 6. A second connecting wire 18 is electrically connected to the first connecting ring 5, and a first connecting wire 14 is electrically connected to the second connecting ring 7. The terminals include a first terminal 8 screwed into and electrically connected to the first connecting ring 5, and a second terminal 9 screwed into and electrically connected to the second connecting ring 7. When the button 12 is turned to electrically connect the first electrode plate 13 and the second electrode plate 17, a closed circuit can be formed between the external wire connected to the first terminal plate 8 and the external wire connected to the second terminal plate 9 through the first electrode plate 13 and the second electrode plate 17, thereby controlling the on / off state of the external electrical equipment.

[0039] Reference Figure 2 When button 12 is rotated downwards, the first electrode 13 and the second electrode 17 are in contact; when button 12 is rotated upwards, the first electrode 13 and the second electrode 17 are separated. When the first electrode 13 and the second electrode 17 are in contact, a circuit is formed; when the first electrode 13 and the second electrode 17 are separated, an open circuit is formed.

[0040] Reference Figure 3 and Figure 5 The insulating plate 15 is made of insulating material and has an arc-shaped structure. The end of the insulating plate 15 away from the turntable 10 abuts against the lower surface of the second electrode plate 17. When the user rotates the button 12 upward, the turntable 10 drives the insulating plate 15 to rotate downward, which in turn pushes the second electrode plate 17 to rotate upward, causing the first electrode plate 13 and the second electrode plate 17 to separate quickly and increasing the distance between them.

[0041] Reference Figure 1 The bottom of the outer casing 1, away from the button 12, has a sliding hole 19. A plug plate 20 passes through the inner cavity of the sliding hole 19 and is slidably connected to the outer casing 1 through the sliding hole 19. When the user installs the outer casing 1, the plug plate 20 can be aligned with the slot inside the external distribution box, and the plug plate 20 can be slid down to lock the entire structure into the distribution box.

[0042] Reference Figure 2Multiple convection grooves 21 are formed on the outer surface of the outer casing 1 above the sliding hole 19. Each of the multiple convection grooves 21 has an air inlet 22 that communicates with the inner cavity of the outer casing 1. The convection grooves 21 and the air inlet 22 enable the air-cooling device to draw cold air from the external environment into the inner cavity of the outer casing 1 and deliver it to the gap between the first electrode plate 13 and the second electrode plate 17, thereby enhancing the cooling effect on the electric arc and causing the electric arc to spread and extinguish rapidly.

[0043] Reference Figure 3 The air-cooling device includes a motor 24 housed within the inner cavity of the outer casing 1. A fan blade 26 is fixedly connected to the output end of the motor 24, and a rubber ring 27 is fitted around the fan blade 26, with the rubber ring 27 fixedly connected to the end of the fan blade 26. When the motor 24 is powered on, it drives the fan blade 26 to rotate, drawing cool air from the external environment into the inner casing 1 through the air inlet 22. The rubber ring 27 is fitted around the fan blade 26 to protect it.

[0044] Reference Figure 3 and Figure 6 A protective cover 23 is fitted onto the outer surface of the air-cooling device. The protective cover 23 is fixedly connected to the inner wall of the outer casing 1. Multiple connecting rods 25 are provided inside the protective cover 23. One end of each connecting rod 25 is fixedly connected to the inner wall of the protective cover 23, and the other end is fixedly connected to the outer surface of the motor 24. The protective cover 23 is provided to protect the air-cooling device, and the connecting rods 25 are provided to fix the motor 24.

[0045] Reference Figure 3 and Figure 4 A hemispherical air collecting hood 28 is fixedly connected to the protective cover 23, and an air supply pipe 29 is fixedly connected to the air collecting hood 28. The end of the air supply pipe 29 away from the air collecting hood 28 is aligned with the connection between the first electrode plate 13 and the second electrode plate 17. When air is drawn into the inner cavity of the protective cover 23, under the pressure of the air subsequently entering the protective cover 23, the air inside the protective cover 23 can be collected by the air collecting hood 28 and blown into the gap between the first electrode plate 13 and the second electrode plate 17 along the air supply pipe 29, thereby enhancing the cooling effect on the electric arc and causing the electric arc to spread and extinguish rapidly.

[0046] The implementation principle of this invention is as follows: When the user rotates button 12 to rotate the turntable 10, thereby moving the first electrode plate 13 upward to contact with the second electrode plate 17, the external wires electrically connected to the top and bottom of the outer casing 1 via the terminals form a closed circuit through the contact of the first electrode plate 13 and the second electrode plate 17, thus supplying power to external electrical devices. When the user needs to disconnect the external electrical devices, they can rotate button 12 upward, causing the first electrode plate 13, which is fixedly installed on the other side of the turntable 10, to rotate downward until it separates from the second electrode plate 17, thereby disconnecting the external electrical device from the power supply. At the same time, as the first electrode plate 13 rotates downward, the insulating plate 15 installed on the turntable 10 above the first electrode plate 13 rotates synchronously. When the insulating plate 15 rotates, it pushes the second electrode plate 17 around. Rotating around the connection point between it and the mounting base 16 rapidly increases the distance between the first electrode plate 13 and the second electrode plate 17, quickly elongating the electric arc generated when the first electrode plate 13 and the second electrode plate 17 are disconnected, thereby reducing the electric field strength between the first electrode plate 13 and the second electrode plate 17 and extinguishing the arc. At the same time, the air-cooling device can be activated to blow cold air vertically between the first electrode plate 13 and the second electrode plate 17, enhancing the cooling effect on the arc and causing the arc to spread and extinguish rapidly. This avoids the problem of existing circuit breakers generating a ball of extremely high temperature, extremely bright and conductive electric arc in the contact gap when the control circuit is opened and closed. Since the arc is mainly generated when the contacts are disconnected, the high temperature will burn the contacts and insulation, and in severe cases, it may even cause phase-to-phase short circuits, electrical explosions, and fires.

[0047] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A circuit breaker switching system, comprising a housing (1), characterized in that: The outer casing (1) has a wire groove at the top and bottom. A connecting ring is installed inside the wire groove. A terminal is screwed onto the side wall of the wire groove. A turntable (10) is embedded in one side wall of the outer casing (1). A connecting shaft (11) is fixedly connected to both ends of the turntable (10). The turntable (10) is rotatably connected to the outer casing (1) through the connecting shaft (11). A button (12) is fixedly connected to the side wall of the turntable (10) located outside the outer casing (1). A first electrode plate (13) is fixedly connected to the side wall of the turntable (10) located inside the cavity of the outer casing (1). A first connecting wire (14) is fixedly connected to the first electrode plate (13). The end of the first connecting wire (14) away from the first electrode plate (13) is electrically connected to the electrical connecting ring provided at the bottom of the outer casing (1). An arc-shaped insulating plate (15) is fixedly connected to the side wall of the turntable (10) above the first electrode plate (13). An installation base (16) is fixedly connected in the inner cavity of the outer shell (1). The bottom of the installation base (16) is rotatably connected to a second electrode plate (17) via a torsion spring. A second connecting wire (18) is fixedly connected to the second electrode plate (17). One end of the second connecting wire (18) away from the second electrode plate (17) is fixedly connected to the electrical connecting ring provided on the top of the outer shell (1). A wind-cooling device is installed inside the side of the outer shell (1) away from the connecting shaft (11). The insulating plate (15) is made of insulating material and has an arc-shaped structure. One end of the insulating plate (15) away from the turntable (10) abuts against the lower surface of the second electrode plate (17). The air-cooling device includes a motor (24) disposed in the inner cavity of the outer shell (1), a fan blade (26) is fixedly connected to the output end of the motor (24), a rubber ring (27) is sleeved around the fan blade (26), and the rubber ring (27) is fixedly connected to the end of the fan blade (26). A protective cover (23) is fitted on the outer surface of the air-cooling device. The protective cover (23) is fixedly connected to the inner wall of the outer shell (1). A plurality of connecting rods (25) are provided in the inner cavity of the protective cover (23). One end of the plurality of connecting rods (25) is fixedly connected to the inner wall of the protective cover (23), and the other end of the connecting rod (25) is fixedly connected to the outer surface of the motor (24). A hemispherical air collecting hood (28) is fixedly connected to the protective cover (23), and an air supply pipe (29) is fixedly connected to the air collecting hood (28). The end of the air supply pipe (29) away from the air collecting hood (28) is aligned with the connection between the first electrode plate (13) and the second electrode plate (17). When the insulating plate (15) rotates, it pushes the second electrode plate (17) to rotate around its connection with the mounting base (16).

2. The circuit breaker switching system according to claim 1, characterized in that: Both ends of the outer shell (1) are provided with cover plates (2), and screws (3) are provided on the cover plates (2). The screws (3) pass through the cover plates (2) and are screwed to the outer shell (1).

3. A circuit breaker switching system according to claim 1, characterized in that: The wire channel includes an upper wire channel (4) opened at the top of the outer casing (1) and a lower wire channel (6) opened at the bottom of the outer casing (1). The connecting ring includes a first connecting ring (5) installed in the inner cavity of the upper wire channel (4) and a second connecting ring (7) installed in the inner cavity of the lower wire channel (6). The second connecting wire (18) is electrically connected to the first connecting ring (5). The first connecting wire (14) is electrically connected to the second connecting ring (7). The terminal includes a first terminal (8) screwed into the inside of the first connecting ring (5) and electrically connected to the first connecting ring (5) and a second terminal (9) screwed into the inside of the second connecting ring (7) and electrically connected to the second connecting ring (7).

4. A circuit breaker switching system according to claim 3, characterized in that: When the button (12) is rotated downwards, the first electrode plate (13) and the second electrode plate (17) are in contact; when the button (12) is rotated upwards, the first electrode plate (13) and the second electrode plate (17) are separated.

5. A circuit breaker switching system according to claim 1, characterized in that: The bottom of the outer casing (1) away from the button (12) has a sliding hole (19), and an insert plate (20) is inserted through the inner cavity of the sliding hole (19). The insert plate (20) is slidably connected to the outer casing (1) through the sliding hole (19).

6. A circuit breaker switching system according to claim 5, characterized in that: Multiple convection grooves (21) are provided on the outer surface of the outer shell (1) above the sliding hole (19), and air inlets (22) communicating with the inner cavity of the outer shell (1) are provided on the inner wall of each of the multiple convection grooves (21).

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