Shunt for circuit breaker and circuit breaker

Abstract

The application provides a shunt of a circuit breaker and the circuit breaker, and the shunt of the circuit breaker comprises a terminal post, the terminal post has a wire insertion end, and a slide channel is arranged on the terminal post; an extended conductive part comprises a wire insertion end and a connector fixedly connected with the wire insertion end, the connector is inserted into the slide channel to be electrically connected with the terminal post; and the wire insertion end and the wire insertion end can be plugged together. The technical scheme of the application effectively solves the problem that when an electric meter is installed, the main switch of a power distribution cabinet needs to be pulled off and powered off.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment, in particular to a shunt of a circuit breaker and the circuit breaker. BACKGROUND

[0002] With the popularization of electric vehicles, family cars are gradually shifting from fuel vehicles to electric vehicles. The general charging methods of electric vehicles include public charging piles and private charging piles. Private charging piles need to be applied through property and power supply departments, new electricity meters are installed in the family parking space, and the installation of charging piles is completed. The installation method is to divide the electricity meter and the line from the power distribution cabinet closest to the target parking space, and to draw the line from the main switch of the power distribution cabinet to the specified electricity meter.

[0003] At present, the installation of private charging piles is gradually increasing. In order to avoid pulling the main switch of the power distribution cabinet for power-off every time the electricity meter is installed, a circuit breaker is added between the outlet end of the main switch of the power distribution cabinet and the electricity meter. In this way, during the installation of the electricity meter, the live operation during the installation of the electricity meter can be avoided by disconnecting the circuit breaker.

[0004] In related technologies, the circuit breaker includes an air switch and a shunt. The on-off of the circuit breaker can be controlled by controlling the air switch. However, since the number of outlet ends of the shunt is fixed, when the number of electricity meters is greater than the number of outlet ends of the shunt, the main switch of the power distribution cabinet still needs to be pulled for power-off in order to install new circuit breakers and electricity meters, which affects the normal use of other electrical facilities connected to the power distribution cabinet. SUMMARY

[0005] The main purpose of the present application is to provide a shunt of a circuit breaker and the circuit breaker, so as to solve the problem that in related technologies, the main switch of the power distribution cabinet needs to be pulled for power-off when installing the electricity meter.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a shunt of a circuit breaker is provided, which comprises: a terminal post having a plug-in end, the terminal post being provided with a sliding channel; an extended conductive part comprising a plug-in end and a connector fixedly connected with the plug-in end, the connector being inserted into the sliding channel to be electrically connected with the terminal post; wherein the plug-in end and the plug-in end can be plugged and matched.

[0007] Further, the terminal post comprises a conductive head and a ring-shaped terminal connector arranged in the conductive head and electrically connected with the conductive head, the plug-in end is arranged on the conductive head, the conductive head is provided with a connecting groove, a first end of the connecting groove is in communication with the ring-shaped terminal connector, and a second end of the connecting groove penetrates through the surface of the conductive head; the extended conductive part further comprises a connecting head electrically connected with the connector, and the connector is inserted into the sliding channel so that the connecting head is inserted into the connecting groove and electrically connected with the ring-shaped terminal connector.

[0008] Further, the terminal post further comprises a mounting post fixedly connected with the conductive head and electrically connected with the terminal post, a limiting slot is arranged on one end of the mounting post close to the terminal post, and a sliding channel is arranged on the circumferential outer side of the mounting post and in communication with the limiting slot; the extended conductive part further comprises a connecting mechanism arranged in the connector and capable of swinging, the connecting mechanism is capable of swinging to have a connecting state and a releasing state; when the connecting mechanism is in the connecting state, the connecting mechanism extends out of the connector and is inserted into the limiting slot to fixedly connect the connector with the terminal post; when the connecting mechanism is in the releasing state, the connecting mechanism is retracted into the connector to enable the connector to slide in the sliding channel.

[0009] Further, a receiving cavity for accommodating the connecting mechanism is arranged in the connector, the connecting mechanism comprises a first rotating shaft, a limiting buckle swingably sleeved on the first rotating shaft, and an adjusting piece connected with the limiting buckle at an angle, the connector is provided with a first opening and a second opening, and the first opening and the second opening are arranged in communication with the receiving cavity; one end of the limiting buckle away from the adjusting piece is a clamping end, the clamping end is capable of extending out of the first opening and being inserted into the limiting slot, and the adjusting piece extends out of the second opening, the adjusting piece is driven to swing to drive the limiting buckle to swing to switch the connecting mechanism between the connecting state and the releasing state.

[0010] Further, the connecting mechanism further comprises a torsion spring arranged around the first rotating shaft, the torsion spring is connected with the limiting buckle and applies a first elastic force to the limiting buckle to enable the clamping end to remain at a position of extending out of the first opening and being inserted into the limiting slot to enable the connecting mechanism to remain in the connecting state; a guide inclined surface is arranged on one end of the mounting post away from the terminal post, during the process that the connector is inserted into the sliding channel, the clamping end is in abutting fit with the guide inclined surface to enable the limiting buckle to overcome the first elastic force and be retracted into the connector to enable the connecting mechanism to remain in the releasing state.

[0011] Further, the shunt of the circuit breaker further comprises a metal spring capable of being electrically connected between the wiring end and the connector, an installation cavity in communication with the receiving cavity is arranged in the extended conductive part, and the metal spring is located in the receiving cavity and the installation cavity; when the connecting mechanism is in the releasing state, the limiting buckle is retracted into the connector and is in abutting fit with the metal spring to enable the metal spring to be deformed, and the wiring end and the connector are disconnected in electrical connection; when the connecting mechanism is in the connecting state, the clamping end extends out of the first opening, and the limiting buckle is separated from the metal spring to enable the wiring end and the connector to be electrically connected.

[0012] Further, the shunt of the circuit breaker further comprises a disconnecting mechanism connected with the connector, the disconnecting mechanism being capable of driving the connecting mechanism to switch between the connected state and the released state to control the conduction or disconnection between the terminal and the connector; the disconnecting mechanism comprises a limiting block connected with the bottom end of the connector, a first push rod arranged in the limiting block in a liftable manner, and a top sheet arranged on the limiting block in a swingable manner, the bottom end of the connector is provided with a latch, the limiting block is provided with a slot, the latch and the slot are in plug-in cooperation to fix the disconnecting mechanism with the connector; wherein the first push rod is lifted to drive the top sheet to swing, the top sheet swings to drive the adjusting sheet to swing to drive the limiting buckle to swing, so that the connecting mechanism is switched between the connected state and the released state to make the terminal and the connector conductively connected or disconnected.

[0013] Further, the disconnecting mechanism further comprises a top rod fixedly connected with the upper end of the first push rod and a first compression spring arranged in the limiting block, when the first push rod is lifted to drive the top sheet to swing, the top rod is in contact with the top sheet; the first compression spring applies a second elastic force to the top rod to make the top rod avoid the top sheet, so that the connecting mechanism can be kept in the connected state.

[0014] Further, the terminal post is provided with a plurality of sliding channels, the plurality of sliding channels are arranged in a circumferential direction of the terminal post at intervals, the plurality of extension conductive parts are arranged in the circumferential direction of the terminal post at intervals, each of the plurality of extension conductive parts comprises a connector and a disconnecting mechanism; the shunt of the circuit breaker further comprises a switching mechanism capable of simultaneously controlling the plurality of disconnecting mechanisms, the limiting block is provided with a lifting groove, the switching mechanism comprises a guide rod arranged in the lifting groove, a lifting block slidably sleeved on the guide rod, a second compression spring sleeved outside the guide rod, and a pushing ring connected with the lifting block, the lifting block is in guided cooperation with the lifting groove, the second compression spring is abutted between the lifting block and the side wall of the lifting groove, the pushing ring is sleeved outside the first push rod, the outer side wall of the first push rod is provided with an abutment groove, after the pushing ring is raised and embedded into the abutment groove, the pushing ring can drive the first push rod to rise, so that the first push rod drives the top sheet to swing, the second compression spring applies a third elastic force to the lifting block, so that the lifting block and the pushing ring can be kept separated from the abutment groove; a self-locking button switch is arranged on one end of the terminal post away from the terminal, the shunt of the circuit breaker further comprises a second push rod, the second push rod can be inserted into the self-locking button switch, the limiting block is provided with an adjusting cavity, the switching mechanism further comprises a connecting rod arranged in the adjusting cavity in a liftable manner, a first end of the connecting rod is connected with the pushing ring, a second end of the connecting rod is provided with a connecting block, the second push rod is provided with a plug-in slot capable of being in plug-in cooperation with the connecting block; wherein when the second push rod is inserted into the self-locking button switch, the connecting block and the plug-in slot are in plug-in cooperation, the second push rod is driven to lift to drive the pushing ring to lift through the connecting rod, the self-locking button switch can keep the lifting position of the second push rod.

[0015] According to another aspect of the present application, a circuit breaker is provided, comprising an air switch and a shunt capable of being electrically connected with the air switch, the shunt being the shunt of the circuit breaker described above.

[0016] According to the technical scheme of the present application, the shunt of the circuit breaker comprises a terminal post and an extended conductive part. The terminal post has a wire insertion end, and a slide is arranged on the terminal post. The extended conductive part comprises a wire insertion end and a connector fixedly connected with the wire insertion end, and the connector is inserted into the slide to be electrically connected with the terminal post. The wire insertion end and the wire insertion end can be plugged together. In this way, the wire insertion end of the terminal post of the shunt of the circuit breaker is connected with the air switch, and the air switch can control the on-off of all the extended conductive parts connected with the terminal post. After the connector of the extended conductive part is inserted into the slide, the extended conductive part can be electrically connected with the terminal post, so that the connection between the extended conductive part and the terminal post is simpler and faster, and the number of the extended conductive parts connected with the terminal post can be selected according to the number of the wire insertion ends of the shunt of the circuit breaker, and the use is more flexible and convenient. When the number of the extended conductive parts on the terminal post reaches the specified number of the extended conductive parts that can be connected on the terminal post, another shunt of the circuit breaker can be used, and the wire insertion end of the terminal post of the other shunt of the circuit breaker is connected with the wire insertion end of the extended conductive part of the original shunt of the circuit breaker, so as to further increase the number of the wire insertion ends of the shunt of the circuit breaker, and the operation can be performed by controlling the on-off of the air switch, avoiding the operation of pulling the lever of the main switch of the power distribution cabinet. Therefore, the technical scheme of the present application effectively solves the problem that the main switch of the power distribution cabinet needs to be pulled to cut off the power supply when the electric meter is installed in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of the present description, illustrate the present application and, together with the written description, serve to explain the application. In the drawings:

[0018] Figure 1 A perspective structural schematic view of an embodiment of the circuit breaker according to the present application is shown;

[0019] Figure 2 A perspective structural schematic view of the shunt of the circuit breaker of Figure 1 is shown;

[0020] Figure 3 A partial exploded structural schematic view of the shunt of the circuit breaker of Figure 1 is shown;

[0021] Figure 4 A sectional view schematic view of the shunt of the circuit breaker of Figure 1 is shown;

[0022] Figure 5 A perspective structural schematic view ofFigure 4 A partial enlarged schematic diagram of the shunt A of the circuit breaker;

[0023] Figure 6 Shown Figure 1 A schematic diagram of the three-dimensional structure of the terminal of the shunt of the circuit breaker;

[0024] Figure 7 Shown Figure 1 A schematic diagram of the three-dimensional structure of the terminal of the shunt of the circuit breaker when viewed in section;

[0025] Figure 8 Shown Figure 1 A schematic diagram of the three-dimensional structure of an extended conductive part of a shunt of a circuit breaker;

[0026] Figure 9 Shown Figure 8 A schematic cross-sectional view of an extended conductive member of a shunt of a circuit breaker;

[0027] Figure 10 Shown Figure 9 A partial enlarged schematic diagram of position B of the extended conductive member of the shunt of the circuit breaker;

[0028] Figure 11 Shown Figure 1 A schematic diagram of a three-dimensional structure of an extended conductive member of a shunt of a circuit breaker from another perspective;

[0029] Figure 12 Shown Figure 1 A schematic diagram of the three-dimensional structure of the connection mechanism of the shunt of the circuit breaker;

[0030] Figure 13 Shown Figure 1 A schematic diagram of the three-dimensional structure of the metal shrapnel of the shunt of the circuit breaker;

[0031] Figure 14 Shown Figure 1 A schematic diagram of the three-dimensional structure of the circuit breaker's shunt;

[0032] Figure 15 Shown Figure 1 A schematic cross-sectional view of a circuit breaker mechanism of a shunt of a circuit breaker;

[0033] Figure 16 Shown Figure 15 A partial enlarged schematic diagram of position C of the circuit breaker's shunt mechanism;

[0034] Figure 17 Shown Figure 1 Schematic diagram of the three-dimensional structure of the switching mechanism of the shunt of the circuit breaker.

[0035] Wherein, the above-mentioned drawings include the following reference signs:

[0036] 10. Air switch;

[0037] 20. Busbar shunt; 21. Terminal post; 211. Conductive head; 212. Ring terminal; 213. Connection groove; 214. Mounting post; 215. Guide slope; 216. Limiting groove; 217. Slide; 22. Expansion conductive member; 221. Shell; 222. Adaptation jack; 223. Connector; 224. Connection head; 23. Fastener;

[0038] 30. Expansion shunt;

[0039] 40. Connection mechanism; 41. Containing cavity; 42. First rotating shaft; 43. Limiting buckle; 44. Adjusting sheet; 45. Torsion spring; 46. Metal spring sheet;

[0040] 50. Breaking mechanism; 51. Limiting block; 511. Bolt; 512. Slot; 52. Second rotating shaft; 53. Top sheet; 54. Top rod; 55. First push rod; 56. First compression spring;

[0041] 60. Switching mechanism; 61. Lifting groove; 62. Guide rod; 63. Lifting block; 64. Second compression spring; 65. Push ring; 66. Abutting groove; 67. Adjusting cavity; 68. Connecting rod; 69. Connecting block; 610. Second push rod; 611. Self-locking button switch. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0044] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless specifically so stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only and not to limit the scope of the application. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail but are intended to be part of the specification when appropriate. In all examples shown and discussed herein, any specific values are to be interpreted as illustrative only and not as a limitation. Thus, other examples of exemplary embodiments can have different values. It is noted that like numbers and letters refer to like elements throughout the several views of the drawings and, as such, no further discussion will be provided.

[0045] In the embodiment, the shunt of the circuit breaker comprises the terminal post 21 and the extended conductive member 22. The terminal post 21 has a plug-in end, and the terminal post 21 is provided with a sliding groove 217. The extended conductive member 22 comprises a terminal end and a connector 223 fixedly connected to the terminal end, and the connector 223 is inserted into the sliding groove 217 to be electrically connected with the terminal post 21. The plug-in end and the terminal end can be plug-in matched.

[0046] In this way, the plug-in end of the terminal post 21 of the shunt of the circuit breaker is connected with the air switch, and the air switch can control the on-off of all the extended conductive members 22 connected with the terminal post 21. After the connector 223 of the extended conductive member 22 is inserted into the sliding groove 217, the extended conductive member 22 can be electrically connected with the terminal post 21, so that the connection of the extended conductive member 22 with the terminal post 21 is more simple and fast, and the number of the extended conductive members 22 connected with the terminal post 21 can be selected according to the number of the plug-in ends of the shunt of the circuit breaker as required, and the use is more flexible and convenient. When the number of the extended conductive members 22 on the terminal post 21 reaches the specified number of the extended conductive members 22 that can be connected on the terminal post 21, another shunt of a circuit breaker can be used, and the plug-in end of the terminal post 21 of the other shunt of the circuit breaker is connected with the terminal end of the extended conductive member 22 of the original shunt of the circuit breaker, so as to further increase the number of the plug-in ends of the shunt of the circuit breaker, and the operation can be performed by controlling the on-off of the air switch, avoiding the total switch of the power distribution cabinet to be pulled out and disconnected. Therefore, the technical scheme of the embodiment effectively solves the problem that in the related art, the total switch of the power distribution cabinet needs to be pulled out and disconnected when the electric meter is installed.

[0047] As Figures 1 to 17As shown, the terminal post 21 comprises a conductive head 211 and a ring-shaped terminal 212 arranged in the conductive head 211 and electrically connected with the conductive head 211, a wire insertion end is arranged on the conductive head 211, the conductive head 211 is provided with a connecting groove 213, a first end of the connecting groove 213 is communicated with the ring-shaped terminal 212, and a second end of the connecting groove 213 penetrates through a surface of the conductive head 211; the extended conductive member 22 further comprises a connecting head 224 electrically connected with a connector 223, the connector 223 is inserted into the slide channel 217, so that the connecting head 224 is inserted into the connecting groove 213 and electrically connected with the ring-shaped terminal 212. By arranging the conductive head 211 and the ring-shaped terminal 212 in the terminal post 21, the shunt of the circuit breaker can realize reliable electrical connection with the air switch. The plug-in cooperation of the wire insertion end and the terminal end, combined with the electrical connection of the connecting head 224 with the ring-shaped terminal 212 through the connecting groove 213, ensures that the shunt of the circuit breaker can efficiently transmit current, while providing good current distribution capability and connection stability.

[0048] As shown in the drawings, Figures 1 to 17 The terminal post 21 further comprises a mounting post 214 fixedly connected with the conductive head 211 and electrically connected, the mounting post 214 is provided with a limiting groove 216 on a side close to the terminal post 21, and a slide channel 217 is arranged on a circumferential outer side of the mounting post 214 and communicated with the limiting groove 216; the extended conductive member 22 further comprises a connecting mechanism 40 swingably arranged in the connector 223, the connecting mechanism 40 swings to have a connected state and a released state; when the connecting mechanism 40 is in the connected state, the connecting mechanism 40 extends out of the connector 223 and is inserted into the limiting groove 216, so as to fixedly connect the connector 223 with the terminal post 21; when the connecting mechanism 40 is in the released state, the connecting mechanism 40 is retracted into the connector 223, so that the connector 223 can slide in the slide channel 217. The arrangement of the connecting mechanism 40 provides the function of quick installation and disassembly between the shunt of the circuit breaker and the terminal post 21. In the connected state, the limiting buckle 43 fixes the connector 223 and the terminal post 21 by clamping into the limiting groove 216, which ensures the stability of electrical connection. In the released state, the limiting buckle 43 is retracted into the connector 223, allowing the connector 223 to slide in the slide channel 217, which simplifies the installation and disassembly process and improves the maintenance efficiency.

[0049] As shown in the drawings, Figures 1 to 17As shown, the connector 223 is provided with a receiving cavity 41 accommodating the connecting mechanism 40, the connecting mechanism 40 comprising a first rotating shaft 42, a limiting buckle 43 swingably sleeved on the first rotating shaft 42, and an adjusting piece 44 connected with the limiting buckle 43 at an angle, the connector 223 being provided with a first opening and a second opening, both of which are in communication with the receiving cavity 41; the limiting buckle 43 has a clamping end at an end away from the adjusting piece 44, the clamping end being capable of extending out of the first opening and being inserted into the limiting groove 216, the adjusting piece 44 extending out of the second opening, the adjusting piece 44 being driven to swing to drive the limiting buckle 43 to swing, so as to switch the connecting mechanism 40 between the connected state and the released state. The provision of the receiving cavity 41 and the first rotating shaft 42 ensures that the connecting mechanism 40 can automatically lock the position of the connector 223 on the terminal post 21, while providing the possibility of manual release. The design of the first opening and the second opening allows the limiting buckle 43 and the adjusting piece 44 to swing, enhancing the functionality and flexibility of the connecting mechanism 40, and further simplifying the installation and disassembly process. The above-mentioned setting structure is simple and easy to process.

[0050] As shown in Figures 1 to 17 The connecting mechanism 40 further comprises a torsion spring 45 wound on the first rotating shaft 42, the torsion spring 45 being connected with the limiting buckle 43 and applying a first elastic force to the limiting buckle 43, so that the clamping end can be kept at a position extending out of the first opening and being inserted into the limiting groove 216, so that the connecting mechanism 40 can be kept in the connected state; the mounting column 214 is provided with a guide slope 215 at an end away from the terminal post 21, during the process of inserting the connector 223 into the slide 217, the clamping end is in abutting cooperation with the guide slope 215, so that the limiting buckle 43 can overcome the first elastic force and retract into the connector 223, so that the connecting mechanism 40 can be kept in the released state. The cooperation of the guide slope 215 and the clamping end of the limiting buckle 43 enables the connector 223 to automatically release the connecting mechanism 40 when inserted into the slide 217, avoiding the complex operation requirements of the operator during the connection process, improving the smoothness and safety of the installation process. At the same time, the provision of the torsion spring 45 ensures that the connecting mechanism 40 can be automatically locked once the connector 223 is in place, improving the reliability of the electrical connection.

[0051] As shown in Figures 1 to 17As shown, the shunt of the circuit breaker further comprises a metal spring 46 capable of being electrically connected between the terminal and the connector 223, an installation cavity is arranged in the extension conductive member 22 and communicates with the accommodating cavity 41, and the metal spring 46 is located in the accommodating cavity 41 and the installation cavity; when the connecting mechanism 40 is in the release state, the limiting buckle 43 is retracted into the connector 223 and abuts against the metal spring 46, so that the metal spring 46 is deformed, and the terminal and the connector 223 are disconnected; when the connecting mechanism 40 is in the connection state, the clamping end extends out of the first opening, and the limiting buckle 43 is separated from the metal spring 46, so that the terminal and the connector 223 are electrically connected. The metal spring 46 is deformed by the compression of the limiting buckle 43 when the connecting mechanism 40 is in the release state, the power supply between the terminal and the connector 223 is disconnected, and the operation safety is ensured when the extension conductive member 22 is disassembled or replaced. When the connecting mechanism 40 is in the connection state, the limiting buckle 43 is separated from the metal spring 46, the power supply between the terminal and the connector 223 is restored, the quick switching of the electrical connection is realized, and the response speed and the operation convenience of the system are improved.

[0052] As shown in Figures 1 to 17 The shunt of the circuit breaker further comprises a circuit breaking mechanism 50 connected with the connector 223, the circuit breaking mechanism 50 is capable of driving the connecting mechanism 40 to switch between the release state and the connection state, so as to control the conduction or disconnection between the terminal and the connector 223; the circuit breaking mechanism 50 comprises a limiting block 51 connected with the bottom end of the connector 223, a first push rod 55 arranged in the limiting block 51 in a lifting manner, and a top sheet 53 arranged on the limiting block 51 in a swing manner, the bottom end of the connector 223 is provided with a latch 511, the limiting block 51 is provided with a slot 512, the latch 511 and the slot 512 are inserted and matched, so that the circuit breaking mechanism 50 is fixedly connected with the connector 223; wherein the first push rod 55 is lifted to drive the top sheet 53 to swing, the top sheet 53 swings to drive the adjusting sheet 44 to swing to drive the limiting buckle 43 to swing, so that the connecting mechanism 40 is switched between the connection state and the release state, and the terminal and the connector 223 are electrically connected or disconnected. The introduction of the circuit breaking mechanism 50 provides the remote control ability of the connecting mechanism 40 through the interaction of the limiting block 51, the first push rod 55 and the top sheet 53. The operator can operate the first push rod 55 to drive the top sheet 53 to swing, and further drive the adjusting sheet 44 and the limiting buckle 43 to move, so as to realize the quick switching of the conduction state between the terminal and the connector 223, without directly operating the connector 223, and the safety and efficiency of the operation are improved.

[0053] As shown in Figures 1 to 17As shown, the disconnecting mechanism 50 further comprises a top rod 54 fixedly connected to the upper end of the first push rod 55 and a first compression spring 56 arranged in the limiting block 51. When the first push rod 55 is lifted to drive the top sheet 53 to swing, the top rod 54 is in contact with the top sheet 53. The first compression spring 56 applies a second elastic force to the top rod 54, so that the top rod 54 avoids the top sheet 53, and the connecting mechanism 40 can be kept in the connected state. The arrangement of the top rod 54 and the first compression spring 56 in the disconnecting mechanism 50 ensures that the swinging process of the top sheet 53 can be smoothly performed. When the top rod 54 avoids the top sheet 53, the first compression spring 56 provides a second elastic force, which ensures that the top sheet 53 can be automatically reset after disconnection, and the connecting mechanism 40 is kept in the connected state.

[0054] As Figures 1 to 17As shown, the terminal post 21 is provided with a plurality of sliding grooves 217, which are arranged along the circumference of the terminal post 21, the extension conductive part 22 is also a plurality, which are arranged along the circumference of the terminal post 21, each of the extension conductive part 22 comprises a connector 223 and a circuit breaking mechanism 50; the shunt of the circuit breaker further comprises a switching mechanism 60 capable of simultaneously controlling a plurality of circuit breaking mechanisms 50, each of the limiting blocks 51 is provided with a lifting groove 61, the switching mechanism 60 comprises a guide rod 62 arranged in the lifting groove 61, a lifting block 63 slidably sleeved on the guide rod 62, a second compression spring 64 sleeved outside the guide rod 62, and a pushing ring 65 connected with the lifting block 63, the lifting block 63 is guided and matched with the lifting groove 61, the second compression spring 64 is abutted between the lifting block 63 and the side wall of the lifting groove 61, the pushing ring 65 is sleeved outside the first push rod 55, the outer side wall of the first push rod 55 is provided with an abutment groove 66, after the pushing ring 65 rises and is embedded into the abutment groove 66, the pushing ring 65 can drive the first push rod 55 to rise, so that the first push rod 55 drives the top sheet 53 to swing, the second compression spring 64 applies a third elastic force to the lifting block 63, so that the lifting block 63 and the pushing ring 65 can keep separated from the abutment groove 66; the terminal post 21 is provided with a self-locking button switch 611 at one end away from the plug-in end, the shunt of the circuit breaker further comprises a second push rod 610, the second push rod 610 can be inserted into the self-locking button switch 611, the limiting block 51 is provided with an adjusting cavity 67, the switching mechanism 60 further comprises a connecting rod 68 arranged in the adjusting cavity 67 in a liftable manner, a first end of the connecting rod 68 is connected with the pushing ring 65, a second end of the connecting rod 68 is provided with a connecting block 69, the second push rod 610 is provided with a plug-in groove capable of plug-in cooperation with the connecting block 69; wherein, when the second push rod 610 is inserted into the self-locking button switch 611, the connecting block 69 is plug-in cooperated with the plug-in groove, the second push rod 610 is driven to rise and lift the pushing ring 65 through the connecting rod 68, the self-locking button switch 611 can keep the lifting position of the second push rod 610. By arranging a plurality of sliding grooves 217 on the terminal post 21, and arranging a plurality of connectors 223 and circuit breaking mechanisms 50 in the extension conductive part 22, the flexibility of adjusting the number of outlet ends of the shunt of the circuit breaker is improved. Each of the extension conductive part 22 can be independently controlled, and the existence of the switching mechanism 60 enables synchronous control of all circuit breaking mechanisms 50 by operating a single self-locking button switch 611 and second push rod 610 in an emergency, quickly disconnecting the electrical connection of all extension conductive parts 22, and significantly improving the safety performance and operation efficiency of the system. The cooperation of the switching mechanism 60 and the second push rod 610 realizes the unified control of all circuit breaking mechanisms 50 in the shunt of the circuit breaker.In an emergency situation, by quickly operating the self-locking push-button switch 611, the position of the second push rod 610 can be quickly locked, ensuring that the connecting rod 68 drives the push ring 65 to rise, thereby driving all the top sheets 53 in the disconnecting mechanism 50 to swing, achieving the unified disconnection of the electrical connection state between all the terminals and the connector 223. This design not only improves the speed of emergency response, but also ensures the safety of all the extended conductive parts 22 during disconnection, effectively preventing electrical accidents caused by improper operation.

[0055] In this embodiment, after the self-locking push-button switch is pressed, it will remain in that position until it is operated again. This ensures that in the event of a power outage, the system will not accidentally restore power, improving the stability and safety of the system. When the operator presses the self-locking push-button switch 611, the second push rod 610 is inserted and connected to the self-locking push-button switch 611. At this time, the second push rod 610 pushes the push ring 65 upwards through the interaction with the connecting rod 68 and the connecting block in the disconnecting mechanism 50. The design of the self-locking push-button switch 611 ensures that the second push rod 610 will not automatically reset after the button is pressed, and the metal spring 46 is also maintained in the disconnected state, thereby maintaining the disconnected state of all disconnecting mechanisms 50 until the button is operated again to reset the second push rod 610. In order to restore power, the operator needs to operate the self-locking push-button switch 611 again. This operation will release the second push rod 610, allowing it to reset under the elastic force of the second compression spring 64. With the reset of the second push rod 610, the connecting rod 68, the push ring 65, and the top rod 54 and the top sheet 53 in the disconnecting mechanism 50 will also reset, and the metal spring 46 will return to its original state, re-establishing the electrical connection between the terminals and the connector 223. The self-locking push-button switch realizes quick and safe power-off and power restoration of all bus diverter through the combination of mechanical transmission and elastic elements. This design greatly improves the safety and convenience of electrical system operation without increasing complexity, especially in emergency power-off or large-scale operation scenarios, the self-locking push-button switch plays a particularly prominent role.

[0056] The application also provides a circuit breaker, which comprises an air switch 10 and a diverter capable of being electrically connected with the air switch 10, and the diverter is the diverter of the circuit breaker described above. Since the diverter of the circuit breaker described above can solve the problem that the main switch of the power distribution cabinet needs to be pulled off and powered off when installing an electric meter, the circuit breaker with the diverter can solve the same technical problem.

[0057] The inventor finds that the air switch circuit breaker is a kind of circuit breaker, which can automatically disconnect when the current exceeds the rated current, and is a very important kind of electrical appliance in low-voltage distribution network and electric drive system. With the popularization of electric vehicles, family cars gradually shift from fuel vehicles to electric vehicles. Electric vehicles generally have public charging piles or private charging piles in free parking spaces. Private charging piles need to be applied by property and power supply department to install new power supply lines to provide charging pile installation. The installation method is to install the electric meter and the line from the distribution cabinet closest to the target parking space, and then connect the total switch drain line to the specified electric meter. Considering that more electric vehicles will be installed, in order to avoid pulling the switch and connecting the line every time the electric meter is installed, which will affect other electrical facilities, a switching circuit breaker shunt is generally installed at the total switch outlet end to achieve the purpose of not needing to pull the switch and connect the line when adding electric meters subsequently. However, in the actual operation process, since the existing switching short circuit switch shunt can only connect up to 9 groups of electric meters, when the number of installed electric meters exceeds 9 groups, a new total switch needs to be added to meet the demand, so power needs to be cut off during construction, which affects the normal use of the previously installed 9 groups of electrical facilities.

[0058] In the embodiment, the shunt of the circuit breaker is two, one is the busbar shunt 20, and the other is the expansion shunt 30. The busbar shunt 20 and the expansion shunt 30 have the same structure. The plug-in end of the busbar shunt 20 is electrically connected with the air switch 10, and the plug-in end of the expansion shunt 30 is plug-in matched with the connection end of the busbar shunt 20.

[0059] In the embodiment, the busbar shunt 20 is provided, so that the end of the expansion conductive part can be connected with a cable or continue to install the expansion shunt 30. The expansion shunt 30 has the same structure as the busbar shunt 20, and the end of the expansion shunt 30 can continue to be connected with a cable. By holding the housing 221, the housing 221 drives the connector 223 to slide into and fixedly install from the bottom opening of the slide 217. The connector 223 is provided with a connecting head 224 at the top. With the sliding of the connector 223 under the limitation of the slide 217, the connecting head 224 can be connected with the ring-shaped connector 212 by being inserted into the connecting slot 213.

[0060] In the embodiment, when the connector 223 is moved to the designated position, the connecting head 224 penetrates the connecting groove 213 and is connected with the annular connector 212 through the connecting mechanism 40, the outer wall of the mounting column 214 removes the blockage of the limiting buckle 43, the limiting buckle 43 can rotate and be embedded in the limiting groove 216 under the pulling of the elastic deformation recovery of the torsion spring 45, the installation of the connector 223 is completed, and the adapter jack 222 can be connected with the cable, and when the expansion conductive part is connected, it will not affect other expansion conductive parts that have been connected with the terminal post 21, and when the number of cables to be added is large, the expansion shunt can be installed to realize re-expansion, and the staff can perform multiple expansion and cable installation operations without power failure on the premise that the cable installation meets the safety specifications and calculation after installation will not cause overload.

[0061] In the embodiment, the limiting buckle 43 rotates into the accommodating cavity 41 during the process of being rotated into the accommodating cavity 41, and the metal spring 46 can be compressed to remove the communication with the connecting head 224 through the disconnecting mechanism 50, so that the staff can ensure that the expansion conductive part 22 is in a power-off state during the removal process, and the safety during the removal or replacement of the expansion conductive part is improved.

[0062] In the embodiment, when it is necessary to disconnect all the bus shunts 20 at the same time by using the disconnecting mechanism 50, the second push rod 610 is inserted into the self-locking button switch 611 to be connected, so that the second push rod 610 drives the push ring 65 to contact the abutting groove 66 and pushes the top rod 54 to rise and lift the top piece 53 through the abutting groove 66, the top piece 53 pushes the adjusting piece 44 and makes the limiting buckle 43 rotate, the limiting buckle 43 pushes the metal spring 46 to remove the connection between the adapter jack 222 and the connecting head 224, and the second push rod 610 will not reset under the limitation of the self-locking button switch 611, so the limiting buckle 43 can always remain in the accommodating cavity 41 and push the metal spring 46, so as to ensure that all the disconnecting mechanisms always keep the auxiliary bus shunt 20 in a power-off state, and the power-off state can be removed by pressing again, so that all the bus shunts are reconnected with the cable or the expansion shunt, thereby realizing the effect of quick disconnection and quick connection.

[0063] In the embodiment, the air switch 10 is installed below the busbar shunt 20, the busbar shunt 20 includes a terminal post 21 connected with the socket below the air switch 10 and no less than two extension conductive parts 22 connected with the terminal post 21, the end of the extension conductive part 22 can be connected with a cable or continue to install an extension shunt 30, the extension shunt 30 has the same structure as the busbar shunt 20, and the end of the extension shunt 30 can continue to be connected with a cable, the terminal post 21 includes a conductive head 211 connected with the air switch 10, and the inside of the conductive head 211 is provided with an annular connector 212, the bottom of the annular connector 212 is provided with a plurality of connection grooves 213 corresponding in number and position to the extension conductive parts 22, and the terminal post 21 is installed below the air switch 10 through a fastener 23.

[0064] In the embodiment, the bottom of the conductive head 211 is provided with a mounting column 214, at least two limiting grooves 216 are formed in the outer wall of the mounting column 214, at least two sliding channels 217 are arranged around the outer periphery of the mounting column 214, the extension conductive part 22 is fixedly installed on the terminal post 21 through the sliding channel 217, the extension conductive part 22 includes a transition socket 222 connected with the extension shunt 30, the transition socket 222 is sleeved with a shell 221 on the outside, and the shell 221 is clamped and installed with a connector 223 on the side close to the sliding channel 217, by holding the shell 221, the shell 221 drives the connector 223 to slide into and be fixedly installed from the bottom opening of the sliding channel 217, the top of the connector 223 is provided with a connecting head 224, and as the connector 223 slides under the limitation of the sliding channel 217, the connecting head 224 can be connected with the annular connector 212 by being inserted into the connection groove 213.

[0065] In the embodiment, in order to ensure the stability of the connection between the extension conductive part 22 and the terminal post 21 and avoid the extension conductive part 22 from falling off when the cable connected with the extension shunt 30 is pulled, the inside of the connector 223 is provided with a connecting mechanism 40, the connecting mechanism 40 includes a containing cavity 41 formed in the inside of the connector 223, a first rotating shaft 42 is arranged in the inside of the containing cavity 41, a limiting buckle 43 is rotatably arranged on the surface of the first rotating shaft 42, and an adjusting piece 44 is arranged on the limiting buckle 43. It should be noted that the limiting buckle 43 is arranged in an S shape, the containing cavity 41 is arranged in an S-shaped groove matched with the limiting buckle 43, and a space is left for the limiting buckle 43 to rotate around the first rotating shaft 42, and meanwhile, two openings are formed in one side of the containing cavity 41, the two openings are respectively used for the rotation and adjustment of the end of the limiting buckle 43 and the adjusting piece 44, and when the limiting buckle 43 extends from the upper opening, it can be locked in the limiting groove 216 formed in the mounting column 214.

[0066] In order to improve the stability of the limiting buckle 43 and the limiting groove 216, a torsion spring 45 is wound on the first rotating shaft 42, the two ends of the torsion spring 45 are connected with the two sides of the limiting buckle 43 respectively, and the torsion spring 45 always pulls the limiting buckle 43 to the state of stretching out from the upper end opening when it is not elastically deformed. In order to facilitate the installation of the connector 223, at least two arc-shaped guide slopes 215 are arranged on the outer wall of the mounting column 214. When installing, the limiting buckle 43 can be in contact with the guide slope 215 and rotate into the accommodating cavity 41 under the guidance of the guide slope 215 until it is completely received in the accommodating cavity 41. The receipt of the limiting buckle 43 ensures the smoothness of the connector 223 during installation. At this time, the torsion spring 45 is in an elastically deformed state. When the connector 223 moves to the specified position, the connecting head 224 penetrates the connecting groove 213 and is connected with the annular connector 212. The outer wall of the mounting column 214 removes the blockage of the limiting buckle 43. The limiting buckle 43 can rotate and be embedded in the limiting groove 216 under the pulling of the elastic deformation recovery of the torsion spring 45. The installation of the connector 223 is completed, and the adapter jack 222 can be connected with the cable. When connecting the expansion conductive part 22, it will not affect other expansion conductive parts 22 that have been connected with the terminal post 21. When the number of cables to be added is large, the expansion shunt 30 can be installed to achieve further expansion. Under the premise that the addition of cables meets the safety specifications and calculation after addition will not cause overload, the staff can perform multiple expansion and cable addition operations without power failure.

[0067] Although the positions where the staff directly contacts the terminal post 21 and the expansion conductive part 22 are both made of insulating materials, in order to ensure the safety of the staff and avoid current overload causing the air switch 10 to trip, a metal spring 46 that can be elastically deformed is arranged inside the accommodating cavity 41. As shown in Figure 9 、 Figure 10 and Figure 13 , the two ends of the metal spring 46 are connected with the adapter jack 222 and the connecting head 224 respectively. When the limiting buckle 43 is completely rotated and received inside the accommodating cavity 41, it can press the metal spring 46 to disconnect it from the connecting head 224 through elastic deformation. Through this design, the limiting buckle 43 is always located inside the accommodating cavity 41 under the blockage of the mounting column 214 during the installation process of the connector 223. Therefore, the metal spring 46 is always not connected with the connecting head 224 during the installation process. When the connecting head 224 is completely inserted into the connecting groove 213 and connected with the annular connector 212, and the limiting buckle 43 is pulled out and embedded in the limiting groove 216, the metal spring 46 can be connected with the connecting head 224 and complete the communication. Only then can the cable or the expansion shunt 30 be powered through the adapter jack 222, thereby achieving the purpose of protecting the staff.

[0068] Meanwhile, in order to be able to remove or replace the extended conductive part 22, and ensure that the metal spring 46 is disconnected from the connecting head 224 when removed or replaced, the extended conductive part 22 is provided below with a disconnection mechanism 50, as shown in Figure 11 、 Figure 14 and Figure 15 The disconnection mechanism 50 includes a limiting block 51 connected to the bottom of the connector 223, the bottom of the connector 223 is provided with a latch 511, and the top of the limiting block 51 is provided with a slot 512 matched with the latch 511, and the cross-sectional shape of the limiting block 51 is the same as that of the connector 223, so that it can be inserted into the slide 217 together with the connector 223, when it is necessary to remove the fixing of the limiting buckle 43 to the connector 223, the first push rod 55 is pushed, the first push rod 55 drives the top rod 54 to press the first compression spring 56, the first compression spring 56 is elastically deformed at the same time, the top rod 54 lifts the top piece 53, the bottom of the top piece 53 is provided with an arc-shaped slot matched with the end of the top rod 54, the top piece 53 rotates around the second pivot 52 and contacts the adjusting piece 44 under the push of the top rod 54, the adjusting piece 44 is lifted upward around the first pivot 42 at the same time, the limiting buckle 43 can be rotated into the accommodating cavity 41, the fixing of the limiting buckle 43 to the connector 223 is removed, the connector 223 can slide out of the slide 217 and pull out the connecting head 224 from the connecting slot 213, at the same time, the limiting buckle 43 is also pressed into the accommodating cavity 41 during the rotating process, which can also press the metal spring 46 to disconnect it from the connecting head 224, so that the worker can ensure that the extended conductive part 22 is in a power-off state during the removal process, and the safety during the removal or replacement of the extended conductive part 22 is improved.

[0069] When an emergency occurs, all cables or extended shunt 30 connected to the bus shunt 20 need to be disconnected, the disconnection mechanism 50 is pressed in sequence to remove the possible speed, which can be quickly disconnected by pressing the reverse switching mechanism 60 provided at the bottom of the mounting column 214, as shown in Figure 5 、 Figures 15 to 17 The reverse switching mechanism 60 includes a plurality of lifting grooves 61 provided inside the disconnection mechanism 50, and a guide rod 62 is vertically provided inside the lifting groove 61, the guide rod 62 is slidably sleeved with a lifting block 63, and the outer wall of the lifting block 63 is attached to the inner wall of the lifting groove 61, the surface of the guide rod 62 above the lifting block 63 is wound with a second compression spring 64, and the two ends of the second compression spring 64 are connected with the lifting block 63 and the top wall of the lifting groove 61 respectively, a plurality of lifting blocks 63 are connected with an annular push ring 65, and the surface of the first push rod 55 is sleeved with an abutting groove 66 matched with the push ring 65.

[0070] The adjusting cavity 67 is arranged in the limiting block 51, the connecting rod 68 is arranged on the abutting groove 66, the connecting rod 68 can vertically lift in the adjusting cavity 67, the connecting block is arranged at the end of the connecting rod 68, the bottom of the mounting column 214 is provided with the self-locking button switch 611, the second push rod 610 can be embedded at the end of the self-locking button switch 611, and the second push rod 610 can abut against the connecting block when being inserted, when it is needed to disconnect all the bus bar shunters 20 by using the circuit breaking mechanism 50, the second push rod 610 is inserted into the self-locking button switch 611 to be connected, and then the second push rod 610 is pushed, so that the second push rod 610 can drive the connecting rod 68 to move in the adjusting cavity 67, the connecting rod 68 drives the pushing ring 65 to move under the guidance of the lifting groove 61 and the guide rod 62 and press the second compression spring 64, with the rising of the pushing ring 65, the pushing ring 65 contacts the abutting groove 66 and pushes the jacking rod 54 to rise and jack up the top sheet 53, the top sheet 53 pushes the adjusting sheet 44 and drives the limiting buckle 43 to rotate, the limiting buckle 43 pushes the metal elastic sheet 46 to disconnect the connecting head 224 and the adapter jack 222, under the limitation of the self-locking button switch 611, the second push rod 610 cannot be reset, so the limiting buckle 43 can always be kept in the state of being received in the containing cavity 41 and pushing the metal elastic sheet 46, so as to ensure that all the circuit breaking mechanisms 50 are always in the state of assisting the bus bar shunter 20 to be disconnected, and the state of being disconnected can be released by pressing again, so that all the bus bar shunters 20 are in communication with the cable or the expansion shunter 30 again, so that the effect of rapid disconnection and rapid connection is realized, and it needs to be noted that the pushing ring 65 is arranged below the jacking rod 54 and always at the lowermost position under the pushing of the second compression spring 64, so it does not affect the function of the circuit breaking mechanism 50 to independently disconnect the connection between the cable or the expansion shunter 30 and the bus bar shunter 20.

[0071] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0072] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof shall relate to the application as oriented in the drawing. The terms "on", "above", "under", "below" and derivatives thereof shall relate to the application as oriented in the drawing, with the test of "above" and "under" being determined based on the position of the device in the drawing. Where the word "comprise" or variations such as "comprises" or "comprising" are used in the following description, it specifically expressly stated that other elements can also be present. Like reference numerals refer to like elements throughout. The term "coupled" as used herein is intended to mean either a direct connection between two elements or an indirect connection through one or more intervening elements. The term "associated with" as used herein is intended to mean either a direct connection between two elements or an indirect connection through one or more intervening elements.

[0073] In addition, it should be pointed out that the use of "first", "second" and the like words to limit parts, only for the convenience of the corresponding parts for the distinction, such as no other declaration, the above words have no special meaning, therefore can not be understood as the limitation of the scope of the present application.

[0074] The above description is merely the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A diverter for a circuit breaker, characterized by, The utility model relates to an electric wire jointing device, which comprises: a terminal post (21) having a wire insertion end, the terminal post (21) being provided with a sliding channel (217); an extended conductive part (22) comprising a wire insertion end and a connector (223) fixedly connected with the wire insertion end, the connector (223) being inserted into the sliding channel (217) to be electrically connected with the terminal post (21); wherein the wire insertion end and the wire insertion end can be plugged together; the terminal post (21) comprises a conductive head (211) and a ring-shaped terminal connector (212) arranged in the conductive head (211) and electrically connected with the conductive head (211), the wire insertion end is arranged on the conductive head (211), the conductive head (211) is provided with a connecting groove (213), the first end of the connecting groove (213) is in communication with the ring-shaped terminal connector (212), and the second end of the connecting groove (213) penetrates the surface of the conductive head (211); the extended conductive part (22) further comprises a connecting head (224) electrically connected with the connector (223), the connector (223) is inserted into the sliding channel (217), so that the connecting head (224) is inserted into the connecting groove (213) and electrically connected with the ring-shaped terminal connector (212); the terminal post (21) further comprises a mounting column (214) fixedly connected with and electrically connected to the conductive head (211), the mounting column (214) is provided with a limiting groove (216) on the end close to the terminal post (21), and the sliding channel (217) is arranged on the circumferential outer side of the mounting column (214) and in communication with the limiting groove (216); the extended conductive part (22) further comprises a connecting mechanism (40) swingably arranged in the connector (223), the connecting mechanism (40) swings to have a connected state and a released state; when the connecting mechanism (40) is in the connected state, the connecting mechanism (40) is extended out of the connector (223) and inserted into the limiting groove (216), so as to fixedly connect the connector (223) with the terminal post (21); when the connecting mechanism (40) is in the released state, the connecting mechanism (40) is retracted into the connector (223), so that the connector (223) can slide in the sliding channel (217); the connector (223) is provided with a containing cavity (41) containing the connecting mechanism (40), the connecting mechanism (40) comprises a first rotating shaft (42), a limiting buckle (43) swingably sleeved on the first rotating shaft (42), and an adjusting piece (44) connected with the limiting buckle (43) at an angle, the connector (223) is provided with a first opening and a second opening, and the first opening and the second opening are in communication with the containing cavity (41); The limiting buckle (43) is provided with a clamping end away from the adjusting piece (44), the clamping end can be inserted into the limiting slot (216) from the first opening, the adjusting piece (44) is inserted into the second opening, and the adjusting piece (44) is driven to swing to drive the limiting buckle (43) to swing, so that the connecting mechanism (40) is switched between the connected state and the released state.

2. The shunt of the circuit breaker according to claim 1, wherein, The connecting mechanism (40) further comprises a torsion spring (45) arranged around the first rotating shaft (42), the torsion spring (45) is connected with the limiting buckle (43) and applies a first elastic force to the limiting buckle (43), so that the clamping end can be kept in the position of being inserted into the limiting slot (216) from the first opening, so that the connecting mechanism (40) can be kept in the connected state; The mounting column (214) is provided with a guide inclined surface (215) at an end away from the terminal post (21), during the process that the connector (223) is inserted into the slide (217), the clamping end is in abutting fit with the guide inclined surface (215), so that the limiting buckle (43) can overcome the first elastic force and retract into the connector (223), so that the connecting mechanism (40) can be kept in the released state.

3. The shunt of the circuit breaker according to claim 2, wherein, The shunt of the circuit breaker further comprises a metal spring (46) which can be electrically connected between the terminal and the connector (223), the expansion conductive part (22) is provided with a mounting cavity which is in communication with the accommodating cavity (41), and the metal spring (46) is located in the accommodating cavity (41) and the mounting cavity; When the connecting mechanism (40) is in the released state, the limiting buckle (43) retracts into the connector (223) and abuts against the metal spring (46), so that the metal spring (46) is deformed, and the terminal and the connector (223) are disconnected in electrical connection; When the connecting mechanism (40) is in the connected state, the clamping end is inserted into the first opening, and the limiting buckle (43) is separated from the metal spring (46), so that the terminal and the connector (223) are electrically connected.

4. The shunt of the circuit breaker according to claim 3, wherein, The shunt of the circuit breaker further comprises a circuit breaking mechanism (50) connected with the connector (223), the circuit breaking mechanism (50) can drive the connecting mechanism (40) to switch between the released state and the connected state, so as to control the conduction or disconnection between the terminal and the connector (223). The circuit breaking mechanism (50) comprises a limiting block (51) connected to the bottom end of the connector (223), a first push rod (55) arranged in the limiting block (51) in a lifting manner, and a top sheet (53) arranged on the limiting block (51) in an oscillating manner, the bottom end of the connector (223) is provided with a latch (511), the limiting block (51) is provided with a slot (512), the latch (511) and the slot (512) are inserted and matched, so that the circuit breaking mechanism (50) is fixedly connected with the connector (223); The first push rod (55) is lifted to drive the top sheet (53) to oscillate, the top sheet (53) is oscillated to drive the adjusting sheet (44) to oscillate to drive the limiting buckle (43) to oscillate, so that the connecting mechanism (40) is switched between the connected state and the released state, so that the wiring terminal and the connector (223) are electrically connected or disconnected.

5. The shunt of the circuit breaker according to claim 4, wherein The circuit breaking mechanism (50) further comprises a top rod (54) fixedly connected to the upper end of the first push rod (55) and a first compression spring (56) arranged in the limiting block (51), when the first push rod (55) is lifted to drive the top sheet (53) to oscillate, the top rod (54) is in contact with the top sheet (53); The first compression spring (56) applies a second elastic force to the top rod (54), so that the top rod (54) avoids the top sheet (53), so that the connecting mechanism (40) can be kept in the connected state.

6. The shunt of the circuit breaker according to claim 5, wherein The wiring post (21) is provided with a plurality of sliding channels (217), and the plurality of sliding channels (217) are arranged in a circumferential direction of the wiring post (21) at intervals, the expansion conductive member (22) is a plurality of, and the plurality of expansion conductive members (22) are arranged in a circumferential direction of the wiring post (21) at intervals, each expansion conductive member (22) comprises the connector (223) and the circuit breaking mechanism (50). The shunt of the circuit breaker further comprises a switching mechanism (60) capable of simultaneously controlling multiple circuit breaking mechanisms (50), the limiting block (51) is provided with a lifting groove (61) therein, the switching mechanism (60) comprises a guide rod (62) provided in the lifting groove (61), a lifting block (63) slidably sleeved on the guide rod (62), a second compression spring (64) sleeved outside the guide rod (62), and a push ring (65) connected with the lifting block (63), the lifting block (63) is guided and matched with the lifting groove (61), the second compression spring (64) is abutted between the lifting block (63) and the side wall of the lifting groove (61), the push ring (65) is sleeved outside the first push rod (55), the outer side wall of the first push rod (55) is provided with an abutment groove (66), and the push ring (65) can drive the first push rod (55) to rise after rising and being embedded into the abutment groove (66), so that the first push rod (55) drives the top piece (53) to swing, the second compression spring (64) applies a third elastic force to the lifting block (63), so that the lifting block (63) and the push ring (65) can be kept separated from the abutment groove (66); The terminal post (21) is provided with a self-locking button switch (611) at one end away from the wire insertion end, the shunt of the circuit breaker further comprises a second push rod (610), the second push rod (610) can be inserted into the self-locking button switch (611), the limiting block (51) is provided with an adjusting cavity (67) therein, the switching mechanism (60) further comprises a connecting rod (68) which is provided in the adjusting cavity (67) in a liftable manner, a first end of the connecting rod (68) is connected with the push ring (65), a second end of the connecting rod (68) is provided with a connecting block (69), and the second push rod (610) is provided with a plug-in groove capable of plug-in cooperation with the connecting block (69); When the second push rod (610) is inserted into the self-locking button switch (611), the connecting block (69) is plug-in cooperated with the plug-in groove, the second push rod (610) is driven to rise and fall to drive the push ring (65) to rise and fall through the connecting rod (68), and the self-locking button switch (611) can keep the rising and falling positions of the second push rod (610).

7. A circuit breaker comprising an air switch (10) and a shunt capable of being electrically connected with the air switch (10), characterized in that, The shunt is the shunt of the circuit breaker in any one of claims 1 to 6.

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