Shunt of circuit breaker and circuit breaker

Abstract

The invention provides a current divider of a circuit breaker and the circuit breaker, and the current divider of the circuit breaker comprises a binding post which is provided with a wire plugging end and is provided with a slide way; the expansion conductive part comprises a wiring end and a connector fixedly connected with the wiring end, and the connector is inserted into the slide way to be electrically connected with the binding post; wherein the wire plugging end and the wiring end can be plugged and matched. According to the technical scheme of the invention, the problem that the main switch of the power distribution cabinet needs to be switched off and powered off when the ammeter is installed in the prior art is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a shunt of a circuit breaker and a circuit breaker. Background Art

[0002] With the popularity of electric vehicles, family cars have gradually shifted from fuel vehicles to electric vehicles. The general charging methods for electric vehicles are public charging piles and private charging piles. Private charging piles need to be applied for through the property and power supply departments, and new meters and charging piles need to be installed in the parking spaces of the family. The installation method is to separate the meter and line from the distribution cabinet closest to the destination parking space for installation. During installation, the line needs to be diverted from the main switch of the distribution cabinet to the designated meter.

[0003] At present, the installation of private charging piles is gradually increasing. In order to avoid turning off the main switch of the distribution cabinet every time the meter is installed, a circuit breaker is added between the outlet of the main switch of the distribution cabinet and the meter. In this way, when installing the meter, the circuit breaker can be disconnected to avoid live operation during the installation of the meter.

[0004] In the related art, the circuit breaker includes an air switch and a shunt, and the on and off of the circuit breaker can be controlled by controlling the air switch. However, since the number of outlets of the shunt is fixed, when the number of electric meters is greater than the number of outlets of the shunt, it is still necessary to disconnect the main switch of the distribution cabinet to install new circuit breakers and electric meters, which affects the normal use of other power facilities connected to the distribution cabinet. Summary of the invention

[0005] The main purpose of the present invention is to provide a shunt and a circuit breaker for a circuit breaker, so as to solve the problem in the related art that when installing an electric meter, the main switch of a distribution cabinet needs to be turned off to cut off the power.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a shunt of a circuit breaker is provided, comprising: a terminal, the terminal having a plug-in terminal, and a slideway is arranged on the terminal; an extended conductive member, comprising a terminal and a connector fixedly connected to the terminal, the connector being inserted into the slideway to be electrically connected to the terminal; wherein the plug-in terminal and the terminal are capable of plugging and matching.

[0007] Furthermore, the terminal includes a conductive head and a ring connector arranged in the conductive head and electrically connected to the conductive head, the wire end is arranged on the conductive head, a connecting groove is arranged on the conductive head, a first end of the connecting groove is connected to the ring connector, and a second end of the connecting groove passes through the surface of the conductive head; the extended conductive part also includes a connecting head electrically connected to the connector, and the connector is inserted into the slide so that the connecting head is inserted into the connecting groove and electrically connected to the ring connector.

[0008] Furthermore, the terminal post also includes a mounting post which is fixedly and electrically connected to the conductive head, a limiting groove is provided on one end of the mounting post close to the terminal post, and a slide is provided on the circumferential outer side of the mounting post and is connected to the limiting groove; the extended conductive part also includes a connecting mechanism which is swingably provided in the connector, and the connecting mechanism swings to have a connected state and a released state; when the connecting mechanism is in the connected state, the connecting mechanism extends out of the connector and is inserted into the limiting groove to fixedly connect the connector to the terminal post; when the connecting mechanism is in the released state, the connecting mechanism retracts into the connector to enable the connector to slide in the slide.

[0009] Furthermore, a accommodating cavity for accommodating a connecting mechanism is provided in the connector, and the connecting mechanism includes a first rotating shaft, a limiting buckle swingably mounted on the first rotating shaft, and an adjusting plate connected to the limiting buckle at an angle. A first opening and a second opening are provided on the connector, and the first opening and the second opening are both connected to the accommodating cavity; the end of the limiting buckle facing away from the adjusting plate is a clamping end, and the clamping end can extend from the first opening and be inserted into the limiting groove, and the adjusting plate extends from the second opening, driving the adjusting plate to swing to drive the limiting buckle to swing, so that the connecting mechanism switches between a connected state and a released state.

[0010] Furthermore, the connecting mechanism also includes a torsion spring wound around the first rotating shaft, which is connected to the limit buckle and applies a first elastic force to the limit buckle, so that the clamping end can be maintained in a position extending from the first opening and inserted into the limit groove, so that the connecting mechanism can be maintained in a connected state; a guide bevel is provided on the end of the mounting column facing away from the terminal, and during the process of inserting the connector into the slide, the clamping end abuts against the guide bevel, so that the limit buckle can overcome the first elastic force and retract into the connector, so that the connecting mechanism can be maintained in a released state.

[0011] Furthermore, the shunt of the circuit breaker also includes a metal spring sheet that can be electrically connected between the terminal and the connector, and an installation cavity connected to the accommodating cavity is provided in the extended conductive member, and the metal spring sheet is located in the accommodating cavity and the installation cavity; when the connecting mechanism is in a released state, the limit clip retracts into the connector and abuts against the metal spring sheet to deform the metal spring sheet and disconnect the electrical connection between the terminal and the connector; when the connecting mechanism is in a connected state, the clamping end extends from the first opening, and the limit clip is separated from the metal spring sheet to electrically connect the terminal and the connector.

[0012] Furthermore, the shunt of the circuit breaker also includes a circuit breaking mechanism connected to the connector, and the circuit breaking mechanism can drive the connecting mechanism to switch between a released state and a connected state to control the conduction or disconnection between the terminal and the connector; the circuit breaking mechanism includes a limit block connected to the bottom end of the connector, a first push rod that can be lifted and lowered in the limit block, and a top plate that can be swingably arranged on the limit block, a pin is provided at the bottom end of the connector, and a slot is provided on the limit block, and the pin is plugged into and matched with the slot to fix the circuit breaking mechanism to the connector; wherein the first push rod is lifted and lowered to drive the top plate to swing, and the top plate swings to drive the adjusting plate to swing to drive the limit buckle to swing, so that the connecting mechanism switches between the connected state and the released state, so that the terminal and the connector are conductively connected or electrically disconnected.

[0013] Furthermore, the circuit breaking mechanism also includes a push rod fixedly connected to the upper end of the first push rod and a first compression spring arranged in the limit block. When the first push rod is raised or lowered to drive the top plate to swing, the push rod contacts and cooperates with the top plate; the first compression spring applies a second elastic force to the push rod to make the push rod avoid the top plate so that the connecting mechanism can remain in a connected state.

[0014] Furthermore, a plurality of slideways are provided on the terminal post, and the plurality of slideways are arranged at intervals along the circumference of the terminal post; there are a plurality of extended conductive members, and the plurality of extended conductive members are arranged at intervals along the circumference of the terminal post; each extended conductive member includes a connector and a circuit breaker mechanism; the shunt of the circuit breaker also includes a switching mechanism capable of simultaneously controlling a plurality of circuit breaker mechanisms; a lifting groove is provided in each limit block; the switching mechanism includes a guide rod provided in the lifting groove, a lifting block slidably mounted on the guide rod, a second compression spring mounted outside the guide rod, and a pushing ring connected to the lifting block; the lifting block cooperates with the lifting groove guide, the second compression spring abuts between the lifting block and the side wall of the lifting groove, the pushing ring is mounted on the outer side of the first push rod, and an abutting groove is provided on the outer side wall of the first push rod; the pushing ring can drive the first push rod after rising and being embedded in the abutting groove. The lifting block is lifted up so that the first push rod drives the top plate to swing, and the second compression spring applies a third elastic force to the lifting block so that the lifting block and the push ring can remain separated from the abutment groove; a self-locking push button switch is arranged on the end of the terminal away from the plug-in end, and the shunt of the circuit breaker also includes a second push rod, which can be inserted into the self-locking push button switch, and an adjusting cavity is arranged in the limit block. The switching mechanism also includes a connecting rod which can be lifted and lowered in the adjusting cavity, and the first end of the connecting rod is connected to the push ring, and a connecting block is arranged on the second end of the connecting rod, and a plug-in groove which can be plugged and matched with the connecting block is arranged on the second push rod; wherein, when the second push rod is inserted into the self-locking push button switch, the connecting block is plugged and matched with the plug-in groove, driving the second push rod to lift and lower so as to drive the push ring to lift and lower through the connecting rod, and the self-locking push button switch can maintain the lifting position of the second push rod.

[0015] According to another aspect of the present invention, a circuit breaker is provided, comprising an air switch and a shunt electrically connectable to the air switch, wherein the shunt is the shunt of the circuit breaker described above.

[0016] By applying the technical solution of the present invention, the shunt of the circuit breaker includes: a terminal and an extended conductive member. The terminal has a plug-in terminal, and a slide is provided on the terminal. The extended conductive member includes a terminal and a connector fixedly connected to the terminal, and the connector is inserted into the slide to be electrically connected to the terminal. The plug-in terminal and the terminal can be plugged in and matched. In this way, the plug-in terminal of the terminal of the shunt of the circuit breaker is connected to the air switch, and the air switch can control the power on and off of all extended conductive members connected to the terminal. After the connector of the extended conductive member is inserted into the slide, the extended conductive member can be electrically connected to the terminal, so that the connection between the extended conductive member and the terminal is simpler and faster, and the number of extended conductive members connected to the terminal can be selected according to the number of outlet terminals of the shunt of the circuit breaker required, which is more flexible and convenient to use. When the number of extended conductive parts on the terminal post reaches the specified number of extended conductive parts that can be connected to the terminal post, the shunt of another circuit breaker can be used to connect the plug-in end of the terminal post of the shunt of another circuit breaker to the terminal of the extended conductive part of the shunt of the original circuit breaker, so as to further increase the number of outlets of the shunt of the circuit breaker, and the operation can be performed by controlling the on and off of the air switch, avoiding the need to turn off the power of the main switch of the distribution cabinet. Therefore, the technical solution of the present application effectively solves the problem of the need to turn off the power of the main switch of the distribution cabinet when installing the electric meter in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a circuit breaker according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of a shunt of a circuit breaker;

[0020] Figure 3 Shows Figure 1 A schematic diagram of a partially exploded structure of a shunt of a circuit breaker;

[0021] Figure 4 Shows Figure 1 A schematic cross-sectional view of a shunt of a circuit breaker;

[0022] Figure 5 Shows Figure 4 A partial enlarged schematic diagram of the shunt of the circuit breaker at A;

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

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

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

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

[0027] Fig.10 Shows Fig. 9 A partial enlarged schematic diagram of the B portion of the extended conductive member of the shunt of the circuit breaker;

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

[0029] Fig.12 Shows Figure 1 A three-dimensional structural schematic diagram of a connection mechanism of a shunt of a circuit breaker;

[0030] Fig.13 Shows Figure 1 A schematic diagram of the three-dimensional structure of a metal spring of a shunt of a circuit breaker;

[0031] Fig.14 Shows Figure 1 A schematic diagram of the three-dimensional structure of a circuit breaker mechanism of a shunt of a circuit breaker;

[0032] Fig.15 Shows Figure 1 A schematic cross-sectional view of a circuit breaker mechanism of a current divider of a circuit breaker;

[0033] Fig.16 Shows Fig.15 A partial enlarged schematic diagram of the circuit breaker at C of the circuit breaker shunt;

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

[0035] The above drawings include the following reference numerals:

[0036] 10. Air switch;

[0037] 20. Busbar shunt; 21. Terminal; 211. Conductive head; 212. Ring terminal; 213. Connection groove; 214. Mounting column; 215. Guide slope; 216. Limiting groove; 217. Slideway; 22. Extended conductive part; 221. Shell; 222. Adapter jack; 223. Connector; 224. Connector; 23. Fastener;

[0038] 30. Expand the diverter;

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

[0040] 50, circuit breaker mechanism; 51, limit block; 511, latch; 512, slot; 52, second rotating shaft; 53, top plate; 54, top rod; 55, first push rod; 56, first compression spring;

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

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

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

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0045] In this embodiment, the shunt of the circuit breaker includes: a terminal 21 and an extended conductive member 22. The terminal 21 has a plug-in terminal, and a slide 217 is provided on the terminal 21. The extended conductive member 22 includes a terminal and a connector 223 fixedly connected to the terminal, and the connector 223 is inserted into the slide 217 to be electrically connected to the terminal 21. The plug-in terminal and the terminal can be plugged in and matched.

[0046] In this way, the plug-in end of the terminal 21 of the shunt of the circuit breaker is connected to the air switch, and the air switch can control the power on and off of all the extended conductive parts 22 connected to the terminal 21. After the connector 223 of the extended conductive part 22 is inserted into the slide 217, the extended conductive part 22 can be electrically connected to the terminal 21, so that the connection between the extended conductive part 22 and the terminal 21 is simpler and faster, and the number of extended conductive parts 22 connected to the terminal 21 can be selected according to the number of outlet terminals of the shunt of the circuit breaker required, which is more flexible and convenient to use. When the number of extended conductive parts 22 on the terminal 21 reaches the specified number of extended conductive parts 22 that can be connected to the terminal 21, the shunt of another circuit breaker can be used, and the plug-in end of the terminal 21 of the shunt of another circuit breaker is connected to the terminal of the extended conductive part 22 of the shunt of the original circuit breaker, so as to further increase the number of outlet terminals of the shunt of the circuit breaker, and the operation can be performed by controlling the on and off of the air switch, avoiding the need to turn off the power of the main switch of the power distribution cabinet. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that when installing the electric meter, the main switch of the distribution cabinet needs to be turned off to cut off the power.

[0047] like Figures 1 to 17As shown, the terminal 21 includes a conductive head 211 and a ring connector 212 disposed in the conductive head 211 and electrically connected to the conductive head 211. The plug-in terminal is disposed on the conductive head 211. The conductive head 211 is provided with a connection groove 213. The first end of the connection groove 213 is connected to the ring connector 212, and the second end of the connection groove 213 penetrates the surface of the conductive head 211. The extended conductive member 22 also includes a connector 224 electrically connected to the connector 223. The connector 223 is inserted into the slideway 217 so that the connector 224 is inserted into the connection groove 213 and electrically connected to the ring connector 212. By arranging the conductive head 211 and the ring connector 212 in the terminal 21, the shunt of the circuit breaker can achieve reliable electrical connection with the air switch. The plug-in fit between the plug-in terminal and the wiring terminal, together with the electrical connection between the connector 224 and the ring connector 212 through the connection slot 213, ensures that the shunt of the circuit breaker can efficiently transmit current while providing good current distribution capability and connection stability.

[0048] like Figures 1 to 17 As shown, the terminal 21 also includes a mounting post 214 fixedly connected and electrically connected to the conductive head 211, a limiting groove 216 is provided on one end of the mounting post 214 close to the terminal 21, and a slideway 217 is provided on the circumferential outer side of the mounting post 214 and connected to the limiting groove 216; the extended conductive member 22 also includes a connecting mechanism 40 swingably provided in the connector 223, and 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 to fix the connector 223 with the terminal 21; when the connecting mechanism 40 is in the released state, the connecting mechanism 40 retracts into the connector 223 so that the connector 223 can slide in the slideway 217. The setting of the connecting mechanism 40 provides a quick installation and removal function between the shunt of the circuit breaker and the terminal 21. When the limit buckle 43 is in the connected state, it is inserted into the limit groove 216 to fix the connector 223 and the terminal 21, thereby ensuring the stability of the electrical connection. When in the released state, the limit buckle 43 is retracted into the connector 223, allowing the connector 223 to slide in the slideway 217, thereby simplifying the installation and removal process and improving the maintenance efficiency.

[0049] like Figures 1 to 17As shown, a receiving chamber 41 for accommodating a connection mechanism 40 is provided in the connector 223, and the connection mechanism 40 includes a first rotating shaft 42, a limit buckle 43 swingably mounted on the first rotating shaft 42, and an adjusting piece 44 connected to the limit 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 both connected to the receiving chamber 41; the end of the limit buckle 43 away from the adjusting piece 44 is a clamping end, which can extend from the first opening and be inserted into the limit groove 216, and the adjusting piece 44 extends from the second opening, driving the adjusting piece 44 to swing to drive the limit buckle 43 to swing, so that the connection mechanism 40 switches between the connection state and the release state. The provision of the receiving chamber 41 and the first rotating shaft 42 ensures that the connection mechanism 40 can automatically lock the position of the connector 223 on the terminal 21, while providing the possibility of manual release. The design of the first opening and the second opening allows the limit buckle 43 and the adjustment piece 44 to swing, thereby enhancing the functionality and flexibility of the connection mechanism 40 and further simplifying the installation and removal process. The above arrangement has a simple structure and is easy to process.

[0050] like Figures 1 to 17 As shown, the connection mechanism 40 also includes a torsion spring 45 wound around the first rotating shaft 42, the torsion spring 45 is connected to the limiting buckle 43 and applies a first elastic force to the limiting buckle 43, so that the clamping end can be maintained at a position extending from the first opening and inserted into the limiting groove 216, so that the connection mechanism 40 can be maintained in a connected state; a guide slope 215 is provided on the end of the installation column 214 away from the terminal 21, and during the process of the connector 223 being inserted into the slide 217, the clamping end abuts and cooperates 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 connection mechanism 40 can be maintained in a released state. The cooperation between the guide slope 215 and the clamping end of the limiting buckle 43 enables the connector 223 to automatically release the connection mechanism 40 when it is inserted into the slide 217, avoiding the complex operation requirements for the operator during the connection process, and improving the smoothness and safety of the installation process. At the same time, the provision of the torsion spring 45 ensures that once the connector 223 is in place, the connection mechanism 40 can be automatically locked, thereby improving the reliability of the electrical connection.

[0051] like Figures 1 to 17As shown, the shunt of the circuit breaker also includes a metal spring 46 that can be electrically connected between the terminal and the connector 223. The extended conductive member 22 is provided with an installation cavity that is connected to 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 released state, the limit 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 electrically. When the connecting mechanism 40 is in the connected state, the clamping end extends out from the first opening, and the limit buckle 43 is separated from the metal spring 46, so that the terminal and the connector 223 are electrically connected. The arrangement of the metal spring 46 causes the metal spring 46 to be deformed by the pressure of the limit buckle 43 when the connecting mechanism 40 is in the released state, thereby realizing the disconnection between the terminal and the connector 223 and ensuring the safety of operation when disassembling or replacing the extended conductive member 22. When the connection mechanism 40 is in the connected state, the limit buckle 43 is separated from the metal spring 46, and the electrical connection between the terminal and the connector 223 is restored, thereby realizing rapid switching of the electrical connection and improving the response speed and operational convenience of the system.

[0052] like Figures 1 to 17 As shown, the shunt of the circuit breaker also includes a circuit breaker mechanism 50 connected to the connector 223, and the circuit breaker mechanism 50 can drive the connection mechanism 40 to switch between the release state and the connection state to control the conduction or disconnection between the terminal and the connector 223; the circuit breaker mechanism 50 includes a limit block 51 connected to the bottom end of the connector 223, a first push rod 55 that can be lifted and lowered in the limit block 51, and a top plate 53 that can be swingably set on the limit block 51, a latch 511 is provided at the bottom end of the connector 223, and a slot 512 is provided on the limit block 51, and the latch 511 is plugged and matched with the slot 512 to fix the circuit breaker mechanism 50 with the connector 223; wherein, the first push rod 55 is lifted and lowered to drive the top plate 53 to swing, and the top plate 53 swings to drive the adjustment plate 44 to swing to drive the limit buckle 43 to swing, so that the connection mechanism 40 switches between the connection state and the release state, so that the terminal and the connector 223 are conductively connected or disconnected. The introduction of the circuit breaker mechanism 50 provides remote control capability for the connection mechanism 40 through the interaction of the limit block 51, the first push rod 55 and the top plate 53. The staff can operate the first push rod 55 to drive the top plate 53 to swing, further drive the adjustment plate 44 and the limit buckle 43 to move, and realize the rapid switching of the conductive state between the terminal and the connector 223, without directly operating the connector 223, thereby improving the safety and efficiency of the operation.

[0053] like Figures 1 to 17As shown, the circuit breaker mechanism 50 also includes a push rod 54 fixedly connected to the upper end of the first push rod 55 and a first compression spring 56 arranged in the limit block 51. When the first push rod 55 is raised and lowered to drive the top plate 53 to swing, the push rod 54 contacts and cooperates with the top plate 53; the first compression spring 56 applies a second elastic force to the push rod 54, so that the push rod 54 avoids the top plate 53, so that the connection mechanism 40 can remain in the connected state. The setting of the push rod 54 and the first compression spring 56 in the circuit breaker mechanism 50 ensures that the swinging process of the top plate 53 can proceed smoothly. When the push rod 54 avoids the top plate 53, the first compression spring 56 provides a second elastic force, ensuring that after the connection is disconnected, the top plate 53 can automatically reset to keep the connection mechanism 40 in the connected state.

[0054] like Figures 1 to 17As shown, a plurality of slideways 217 are arranged on the terminal 21, and the plurality of slideways 217 are arranged at intervals along the circumference of the terminal 21. There are a plurality of extended conductive members 22, and the plurality of extended conductive members 22 are arranged at intervals along the circumference of the terminal 21. Each extended conductive member 22 includes a connector 223 and a circuit breaker mechanism 50; the shunt of the circuit breaker also includes a switching mechanism 60 capable of simultaneously controlling a plurality of circuit breaker mechanisms 50, and a lifting groove 61 is arranged in each of the limit blocks 51, and the switching mechanism 60 includes a conductive member arranged in the lifting groove 61. The guide rod 62, 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 to the lifting block 63, the lifting block 63 is guided and matched with the lifting groove 61, the second compression spring 64 abuts between the lifting block 63 and the side wall of the lifting groove 61, the push ring 65 is sleeved on the outside of the first push rod 55, and an abutment groove 66 is provided on the outer side wall of the first push rod 55. After the push ring 65 rises and is embedded in the abutment groove 66, it can drive the first push rod 55 The first push rod 55 rises, so that the first push rod 55 drives the top plate 53 to swing, and 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 remain separated from the abutment groove 66; a self-locking button switch 611 is arranged on the end of the terminal 21 away from the plug-in end, and the shunt of the circuit breaker also includes a second push rod 610, which can be inserted into the self-locking button switch 611, and an adjustment cavity 67 is arranged in the limit block 51. The switching mechanism 60 also includes a lifting and lowering device arranged on the The connecting rod 68 in the adjusting cavity 67 has a first end connected to the push ring 65, a connecting block 69 is provided on the second end of the connecting rod 68, and a plug-in slot capable of plugging and matching with the connecting block 69 is provided on the second push rod 610; wherein, when the second push rod 610 is inserted into the self-locking button switch 611, the connecting block 69 plugs and matches with the plug-in slot, driving the second push rod 610 to rise and fall, thereby driving the push ring 65 to rise and fall through the connecting rod 68, and the self-locking button switch 611 can maintain the lifting position of the second push rod 610. By providing a plurality of slideways 217 on the terminal 21, and providing a plurality of connectors 223 and a circuit breaker mechanism 50 in the extended conductive member 22, the flexibility in adjusting the number of outlet terminals of the shunt of the circuit breaker is improved. Each extended conductive member 22 can be controlled independently, and the existence of the switching mechanism 60 enables, in an emergency, the single self-locking button switch 611 and the second push rod 610 to achieve synchronous control of all circuit breaker mechanisms 50, quickly disconnecting the electrical connection of all extended conductive members 22, significantly improving the safety performance and operating efficiency of the system. The switching mechanism 60 cooperates with the second push rod 610 to achieve unified control of all circuit breaker mechanisms 50 in the shunt of the circuit breaker.In an emergency, by quickly operating the self-locking 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 the top plates 53 in all the circuit breaker mechanisms 50 to swing, and realizing the unified disconnection of the electrical connection 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 members 22 during the disconnection process, 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 this position until it is operated again. This ensures that the system will not accidentally restore power supply in a state where power is required to be cut off, thereby 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 upward through the interaction with the connecting rod 68 and the connecting block in the circuit breaker mechanism 50. The design of the self-locking push button switch 611 makes it so that the second push rod 610 will not automatically reset after the button is pressed, and the metal dome 46 is also kept in the disconnected state, thereby maintaining the disconnected state of all circuit breaker mechanisms 50 until the button is operated again to reset the second push rod 610. In order to restore power supply, 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. As the second push rod 610 is reset, the connecting rod 68, the push ring 65, and the top rod 54 and the top plate 53 in the circuit breaker mechanism 50 will also be reset, and the metal spring 46 will be restored to its original state, and the electrical connection between the terminal and the connector 223 will be re-established. The self-locking push button switch realizes the rapid and safe power off and power restoration of all busbar shunts 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 scenarios where emergency power off or large-scale operation is required, the role of the self-locking push button switch is particularly prominent.

[0056] The present application also provides a circuit breaker, which includes an air switch 10 and a shunt that can be electrically connected to the air switch 10, and the shunt is the shunt of the above-mentioned circuit breaker. Since the shunt of the above-mentioned circuit breaker can solve the problem in the related art that when installing an electric meter, the main switch of the distribution cabinet needs to be turned off to cut off the power, the circuit breaker with the shunt can solve the same technical problem.

[0057] The inventor discovered that the air switch circuit breaker is a type of circuit breaker. When the current exceeds the rated current, the air switch circuit breaker can automatically disconnect. It is a very important electrical appliance in the low-voltage power distribution network and electric traction system. With the popularization of electric vehicles, family cars have gradually shifted from the original fuel vehicles to electric vehicles. Electric vehicles are generally charged by public charging piles or private charging piles dedicated to free parking spaces. Private charging piles need to apply for new power supply lines in their own parking spaces through the property and power supply departments to provide charging pile installation. The installation method is to separate the meter and line from the distribution cabinet closest to the destination parking space for installation. During installation, the main switch must be used to divert the line to the designated meter. Taking into account that more trams will be installed, in order to avoid the need to disconnect and connect wires every time an electric meter is installed, affecting other power facilities, a transfer circuit breaker shunt is generally installed at the main switch outlet, so as to achieve the purpose of not having to disconnect and connect wires when adding electric meters in the future. However, in actual operation, since the existing transfer 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 main switch needs to be added to meet the demand. Therefore, power outages are still required during the construction process, affecting the normal use of the 9 groups of power facilities installed previously.

[0058] In this embodiment, the circuit breaker has two shunts, one of which is a busbar shunt 20, and the other is an expansion shunt 30, and the busbar shunt 20 has the same structure as the expansion shunt 30. The plug-in end of the busbar shunt 20 is electrically connected to the air switch 10, and the plug-in end of the expansion shunt 30 is plugged into the wiring end of the busbar shunt 20.

[0059] In this embodiment, the end of the extended conductive member can be connected to a cable or an extended shunt 30 can be installed by setting the busbar shunt 20. The structure of the extended shunt 30 is the same as that of the busbar shunt 20, and the end of the extended shunt 30 can be connected to a cable. By holding the housing 221, the housing 221 drives the connector 223 to slide in from the bottom opening of the slideway 217 and fix it. A connector 224 is set on the top of the connector 223. As the connector 223 slides under the restriction of the slideway 217, the connector 224 can be inserted into the connection groove 213 to achieve connection with the ring connector 212.

[0060] In this embodiment, through the connection mechanism 40, when the connector 223 moves to the specified position, the connector 224 passes through the connection groove 213 and is connected to the annular connector 212. The outer wall of the mounting column 214 releases the obstruction of the limit buckle 43. The limit buckle 43 can rotate and embed into the limit groove 216 under the pull of the elastic deformation recovery of the torsion spring 45. The connector 223 is installed, and the adapter jack 222 can be connected to the cable. When connecting the extended conductive parts, it will not affect other extended conductive parts that have been connected to the terminal 21. When a large number of cables need to be installed, an extended diverter can be installed to achieve further expansion. The staff can perform multiple expansion and installation operations without power outages on the premise that the installation of cables complies with safety regulations and it is calculated that there will be no overload after installation.

[0061] In this embodiment, by providing a circuit-breaking mechanism 50, the limit buckle 43 can compress the metal spring 46 to disconnect it from the connector 224 during the process of being rotated into the accommodating cavity 41, so that the staff can ensure that the extended conductive part 22 is in a power-off state during the removal process, thereby improving the safety when removing or replacing the extended conductive part.

[0062] In this embodiment, through the setting of the switching mechanism 60, when it is necessary to use the circuit breaker mechanism 50 to disconnect all the busbar diverters 20 at the same time, the second push rod 610 is inserted into the self-locking button switch 611 for connection, so that the second push rod 610 drives the push ring 65 to contact the abutment groove 66 and pushes the push rod 54 to rise and lift the top plate 53 through the abutment groove 66. The top plate 53 pushes the adjusting plate 44 and causes the limit buckle 43 to rotate. The limit buckle 43 pushes the metal spring sheet 46 to release the connection between the connector 224 and the adapter socket 222. Under the restriction of the self-locking button switch 611, the second push rod 610 will not reset. Therefore, the limit buckle 43 can always remain in the state of being retracted into the accommodating cavity 41 and pushing the metal spring sheet 46, so as to ensure that all circuit breaker mechanisms are always in the state of assisting the busbar diverter 20 to enter the power-off state. Pressing it again can release the power-off state, so that all busbar diverters can be reconnected with the cable or expansion diverter, thereby achieving the effect of quick disconnection and quick connection.

[0063] In this embodiment, a busbar shunt 20 is installed below the air switch 10. The busbar shunt 20 includes a terminal 21 connected to the socket below the air switch 10 and at least two extended conductive parts 22 connected to the terminal 21. The end of the extended conductive part 22 can be connected to a cable or an extended shunt 30 can be installed. The structure of the extended shunt 30 is the same as that of the busbar shunt 20, and the end of the extended shunt 30 can continue to be connected to a cable. The terminal 21 includes a conductive head 211 connected to the air switch 10, and a ring connector 212 is arranged inside the conductive head 211. A plurality of connection grooves 213 corresponding to the number and position of the extended conductive parts 22 are provided at the bottom of the ring connector 212. The terminal 21 is installed below the air switch 10 through a fastener 23.

[0064] In this embodiment, a mounting post 214 is provided at the center of the bottom circle of the conductive head 211, and at least two limiting grooves 216 are provided on the outer wall of the mounting post 214. At least two slideways 217 are provided around the outer periphery of the mounting post 214. The extended conductive member 22 is fixedly installed on the terminal post 21 through the slideway 217. The extended conductive member 22 includes an adapter socket 222 connected to the extended diverter 30. A shell 221 is sleeved and installed on the outer side of the adapter socket 222, and a connector 223 is installed on the side of the shell 221 close to the slideway 217. By holding the shell 221, the shell 221 drives the connector 223 to slide in from the bottom opening of the slideway 217 and be fixedly installed. A connector 224 is provided on the top of the connector 223. As the connector 223 slides under the restriction of the slideway 217, the connector 224 can be connected to the annular connector 212 by inserting into the connecting groove 213.

[0065] In this embodiment, in order to ensure the stability of the connection between the extended conductive member 22 and the terminal 21 and to prevent the extended conductive member 22 from falling off when the cable connected to the extended shunt 30 is pulled, a connection mechanism 40 is provided inside the connector 223. The connection mechanism 40 includes a receiving chamber 41 provided inside the connector 223, a first rotating shaft 42 is provided inside the receiving chamber 41, and a limit buckle 43 is provided on the surface of the first rotating shaft 42 for rotation, and an adjustment sheet 44 is provided on the limit buckle 43. It should be noted that the limit buckle 43 is provided in an S shape, the receiving chamber 41 is provided in an S-shaped groove that cooperates with the limit buckle 43, and a space is left for the limit buckle 43 to rotate with the first rotating shaft 42 as the axis. At the same time, two upper and lower openings are provided on one side of the receiving chamber 41, and the two openings are respectively provided for the rotation adjustment of the end of the limit buckle 43 and the adjustment sheet 44. When the limit buckle 43 extends from the opening at the upper end, it can be embedded in the limit groove 216 provided on the mounting column 214 for locking.

[0066] In order to improve the locking stability of the limit buckle 43 and the limit groove 216, a torsion spring 45 is wound on the first rotating shaft 42, and the two ends of the torsion spring 45 are respectively connected to the two sides of the limit buckle 43. When no elastic deformation occurs, the torsion spring 45 always pulls the limit buckle 43 to be in a state of extending from the upper end opening. At the same time, in order to facilitate the installation of the connector 223, at least two arc-shaped guide slopes 215 are also provided on the outer wall of the mounting column 214. During installation, the limit buckle 43 can contact the guide slopes 215 and rotate into the accommodating cavity 41 under the guidance of the guide slopes 215 until it is completely received in the accommodating cavity 41. The receipt of the limit buckle 43 ensures the smoothness of the connector 223 during the installation process. At this time, the torsion spring 45 is in an elastic deformation state. When the connector 223 moves to the specified position, the connector 224 passes through the connecting groove 213 and is connected to the annular connector 212. The outer wall of the mounting column 214 releases the obstruction of the limit buckle 43. The limit buckle 43 can rotate and embed into the limit groove 216 under the pull of the elastic deformation recovery of the torsion spring 45. The connector 223 is installed, and the adapter jack 222 can be connected to the cable. When connecting the extended conductive part 22, it will not affect other extended conductive parts 22 that have been connected to the terminal 21. When a large number of cables need to be installed, the expansion diverter 30 can be installed to achieve further expansion. The staff can perform multiple expansion and installation operations without power outages, provided that the installation of cables complies with safety regulations and it is calculated that there will be no overload after installation.

[0067] Although the positions where the staff directly contacts the terminal 21 and the extended conductive member 22 are all made of insulating materials, in order to ensure the safety of the staff and prevent the air switch 10 from tripping due to current overload, a metal spring 46 that can be elastically deformed is also provided inside the accommodating cavity 41. Fig. 9 , Fig.10 and Fig.13 As shown, the two ends of the metal spring piece 46 are respectively connected to the adapter socket 222 and the connector 224, and when the limit buckle 43 is completely rotated and retracted into the accommodating cavity 41, the metal spring piece 46 can be pressed to release the connection with the connector 224 through elastic deformation. Through this design, during the installation of the connector 223, the limit buckle 43 is always located inside the accommodating cavity 41 under the obstruction of the mounting column 214. Therefore, during the installation process, the metal spring piece 46 is never connected to the connector 224. When the connector 224 is fully inserted into the connecting groove 213 and connected to the ring connector 212, and the limit buckle 43 pops out and embeds into the limit groove 216 and releases the pressure on the metal spring piece 46, the metal spring piece 46 can fit with the connector 224 and complete the connection, and the cable or expansion diverter 30 can be powered through the adapter socket 222, thereby achieving the purpose of protecting the staff.

[0068] At the same time, in order to be able to remove or replace the extended conductive member 22 and ensure that the connection between the metal spring 46 and the connector 224 is disconnected during removal or replacement, a circuit breaker mechanism 50 is provided below the extended conductive member 22. Fig.11 , Fig.14 and Fig.15 As shown, the circuit breaker mechanism 50 includes a limit block 51 connected to the bottom of the connector 223, a latch 511 is arranged at the bottom of the connector 223, a slot 512 matching with the latch 511 is provided at the top of the limit block 51, and the cross-sectional shape of the limit block 51 is the same as that of the connector 223, so it can be inserted into the slideway 217 together with the connector 223. When it is necessary to release the fixing of the limit buckle 43 to the connector 223, the first push rod 55 is pushed to make the first push rod 55 drive the push rod 54 to squeeze the first compression spring 56, so that the first compression spring 56 produces elastic deformation and the push rod 54 lifts the top sheet 53. The bottom of the top sheet 53 is provided with an arc groove matching with the end of the push rod 54. 4, the top plate 53 rotates with the second rotating shaft 52 as the center and contacts with the adjusting plate 44. The adjusting plate 44 is lifted upward with the first rotating shaft 42 as the axis, and the limiting buckle 43 can rotate toward the inside of the accommodating chamber 41. The fixing of the connector 223 by the limiting buckle 43 is released, and the connector 223 can slide out of the slideway 217 and drive the connecting head 224 to be pulled out from the connecting groove 213. At the same time, during the process of the limiting buckle 43 rotating and being collected into the accommodating chamber 41, the metal spring sheet 46 can also be pressed to release the connection between it and the connecting head 224, so that the staff can ensure that the extended conductive member 22 is in a power-off state during the removal process, thereby improving the safety when removing or replacing the extended conductive member 22.

[0069] When an emergency occurs and it is necessary to disconnect all cables connected to the busbar shunt 20 or expand the shunt 30, the disconnection speed may be slow by pressing the circuit breaker mechanism 50 in sequence, and the disconnection can be quickly performed by pressing the switch mechanism 60 set at the bottom of the mounting column 214, such as Figure 5 , Figure 15-17 As shown, the switching mechanism 60 includes a plurality of lifting grooves 61 arranged inside the circuit breaker mechanism 50, and a guide rod 62 is vertically arranged inside the lifting groove 61, a lifting block 63 is slidably sleeved on the surface of the guide rod 62, and the outer wall of the lifting block 63 is in contact with the inner wall of the lifting groove 61, and a second compression spring 64 is wound around the surface of the guide rod 62 above the lifting block 63, and the two ends of the second compression spring 64 are respectively connected to the lifting block 63 and the top wall of the lifting groove 61, an annular pushing ring 65 is connected between the plurality of lifting blocks 63, and a contact groove 66 that is mutually engaged with the pushing ring 65 is sleeved on the surface of the first push rod 55.

[0070] An adjusting cavity 67 is provided inside the limit block 51, and a connecting rod 68 is provided on the abutting groove 66. The connecting rod 68 can be vertically lifted and lowered inside the adjusting cavity 67. A connecting block is provided at the end of the connecting rod 68. At the same time, a self-locking button switch 611 is provided at the bottom of the mounting column 214. A 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 inserted. When it is necessary to disconnect all busbar shunts 20 at the same time using the circuit breaker mechanism 50, the second push rod 610 is inserted into the self-locking button switch 611 for connection, and then the second push rod 610 is pushed so that the second push rod 610 can drive the connecting rod 68 to move inside the adjusting cavity 67 through the connecting block, and the connecting rod 68 drives the pushing ring 65 to move, so that the pushing ring 65 drives the lifting block 63 to move under the guidance of the lifting groove 61 and the guide rod 62 and squeeze the second compression spring 64. As the pushing ring 65 rises, the pushing ring 65 contacts the abutting groove 66 and passes through The abutment groove 66 pushes the push rod 54 to rise and lift the top plate 53, and the top plate 53 pushes the adjusting plate 44 and causes the limit buckle 43 to rotate, and the limit buckle 43 pushes the metal spring sheet 46 to release the connection between the connector 224 and the adapter jack 222. Under the restriction of the self-locking button switch 611, the second push rod 610 will not reset, so the limit buckle 43 can always remain in the state of being retracted into the accommodating cavity 41 and pushing the metal spring sheet 46 to ensure that all circuit breaking mechanisms 50 are always in the state of assisting the busbar diverter 20 to enter the power-off state. Pressing it again can release the power-off state, so that all busbar diverters 20 can be reconnected with the cable or expansion diverter 30, thereby achieving the effect of quick disconnection and quick connection. It should be noted that the push ring 65 is arranged below the push rod 54 and is always at the bottom under the push of the second compression spring 64, so it does not affect the function of the circuit breaking mechanism 50 to independently disconnect the cable or expansion diverter 30 from the busbar diverter 20.

[0071] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0072] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0073] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shunt for a circuit breaker, characterized in that: include: A terminal (21), the terminal (21) having a wire insertion end, and a slideway (217) is provided on the terminal (21); An extended conductive member (22) comprises a terminal and a connector (223) fixedly connected to the terminal, wherein the connector (223) is inserted into the slideway (217) to be electrically connected to the terminal post (21); Wherein, the plug-in terminal and the wiring terminal can be plugged together.

2. The shunt of the circuit breaker according to claim 1, characterized in that: The terminal (21) comprises a conductive head (211) and an annular connector (212) arranged in the conductive head (211) and electrically connected to the conductive head (211); the plug-in end is arranged on the conductive head (211); a connecting groove (213) is arranged on the conductive head (211); a first end of the connecting groove (213) is connected to the annular connector (212); and a second end of the connecting groove (213) passes through the surface of the conductive head (211); The extended conductive member (22) also includes a connector (224) electrically connected to the connector (223), and the connector (223) is inserted into the slideway (217) so that the connector (224) is inserted into the connection groove (213) and electrically connected to the annular connector (212).

3. The shunt of the circuit breaker according to claim 2, characterized in that: The terminal post (21) further comprises a mounting post (214) fixedly connected and electrically connected to the conductive head (211); a limiting groove (216) is provided on one end of the mounting post (214) close to the terminal post (21); and the slideway (217) is provided on the circumferential outer side of the mounting post (214) and is connected to the limiting groove (216); The extended conductive member (22) further comprises a connecting mechanism (40) swingably arranged in the connector (223), wherein 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) to fix the connector (223) and the terminal (21); when the connecting mechanism (40) is in the released state, the connecting mechanism (40) retracts into the connector (223) to enable the connector (223) to slide in the slideway (217).

4. The shunt of the circuit breaker according to claim 3, characterized in that: The connector (223) is provided with a receiving cavity (41) for receiving the connecting mechanism (40), the connecting mechanism (40) comprising a first rotating shaft (42), a limit buckle (43) swingably mounted on the first rotating shaft (42), and an adjusting piece (44) connected to the limit buckle (43) at an angle, the connector (223) is provided with a first opening and a second opening, the first opening and the second opening are both connected to the receiving cavity (41); One end of the limit buckle (43) facing away from the adjustment piece (44) is a clamping end, and the clamping end can extend from the first opening and be inserted into the limit groove (216). The adjustment piece (44) extends from the second opening, driving the adjustment piece (44) to swing to drive the limit buckle (43) to swing, so that the connection mechanism (40) switches between the connection state and the release state.

5. The current divider of the circuit breaker according to claim 4, characterized in that: The connecting mechanism (40) further comprises a torsion spring (45) wound around the first rotating shaft (42), wherein the torsion spring (45) is connected to the limiting buckle (43) and applies a first elastic force to the limiting buckle (43), so that the clamping end can be maintained at a position extending from the first opening and inserted into the limiting groove (216), so that the connecting mechanism (40) can be maintained in the connected state; A guiding bevel (215) is provided on one end of the mounting post (214) facing away from the terminal post (21); when the connector (223) is inserted into the slideway (217), the clamping end abuts against the guiding bevel (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 maintained in the released state.

6. The current divider of the circuit breaker according to claim 5, characterized in that: The shunt of the circuit breaker further comprises a metal spring (46) capable of being electrically connected between the wiring terminal and the connector (223); a mounting cavity communicating with the accommodating cavity (41) is provided in the extended conductive member (22); and the metal spring (46) is located in the accommodating cavity (41) and the mounting cavity; When the connection mechanism (40) is in the released state, the limit buckle (43) retracts into the connector (223) and abuts against the metal spring sheet (46), so that the metal spring sheet (46) is deformed, and the wiring terminal and the connector (223) are electrically disconnected; When the connection mechanism (40) is in the connection state, the clamping end extends out from the first opening, and the limiting buckle (43) is separated from the metal spring (46), so that the wiring terminal and the connector (223) are electrically connected.

7. The current divider of the circuit breaker according to claim 6, characterized in that: The shunt of the circuit breaker further comprises a circuit breaker mechanism (50) connected to the connector (223), wherein the circuit breaker mechanism (50) is capable of driving the connection mechanism (40) to switch between the release state and the connection state, so as to control conduction or disconnection between the connection terminal and the connector (223); The circuit breaker mechanism (50) comprises a limit block (51) connected to the bottom end of the connector (223), a first push rod (55) arranged in the limit block (51) in a liftable manner, and a top plate (53) arranged on the limit block (51) in a swingable manner, a latch (511) is arranged at the bottom end of the connector (223), a slot (512) is arranged on the limit block (51), and the latch (511) is plugged into and matched with the slot (512) so that the circuit breaker mechanism (50) is fixedly connected to the connector (223); The first push rod (55) is raised and lowered to drive the top plate (53) to swing, and the top plate (53) swings to drive the adjustment plate (44) to swing to drive the limit buckle (43) to swing, so that the connecting mechanism (40) switches between the connecting state and the releasing state, so as to make the conductive connection or disconnect the electrical connection between the terminal and the connector (223).

8. The current divider of the circuit breaker according to claim 7, characterized in that: The circuit breaker mechanism (50) further comprises a push rod (54) fixedly connected to the upper end of the first push rod (55) and a first compression spring (56) arranged in the limit block (51); when the first push rod (55) is raised or lowered to drive the top plate (53) to swing, the push rod (54) contacts and cooperates with the top plate (53); The first compression spring (56) applies a second elastic force to the push rod (54) so ​​that the push rod (54) avoids the top sheet (53), so that the connection mechanism (40) can be maintained in the connection state.

9. The current divider of the circuit breaker according to claim 8, characterized in that: The terminal (21) is provided with a plurality of slideways (217), the plurality of slideways (217) being arranged at intervals along the circumference of the terminal (21); the plurality of extended conductive members (22) being arranged at intervals along the circumference of the terminal (21); each of the extended conductive members (22) comprises the connector (223) and the circuit breaker mechanism (50); The shunt of the circuit breaker also includes a switching mechanism (60) capable of controlling a plurality of the circuit breaker mechanisms (50) at the same time. A lifting groove (61) is provided in each of the limit blocks (51). The switching mechanism (60) includes 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 pushing ring (65) connected to the lifting block (63). The lifting block (63) is guided and matched with the lifting groove (61). The second compression spring (64) abuts against the lifting groove (61). The push ring (65) is sleeved on the outer side of the first push rod (55) between the lifting block (63) and the side wall of the lifting groove (61), and an abutment groove (66) is provided on the outer side wall of the first push rod (55). After the push ring (65) rises and is embedded in the abutment groove (66), it can drive the first push rod (55) to rise, so that the first push rod (55) drives the top plate (53) to swing, and 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 remain separated from the abutment groove (66); A self-locking push button switch (611) is arranged on one end of the terminal (21) away from the plug-in end, the shunt of the circuit breaker also includes a second push rod (610), the second push rod (610) can be inserted into the self-locking push button switch (611), the limit block (51) is provided with an adjustment cavity (67), the switching mechanism (60) also includes a connecting rod (68) which is movably arranged in the adjustment cavity (67), the first end of the connecting rod (68) is connected to the push ring (65), the 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 slot capable of plugging and cooperating 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 plugged into the plug-in slot to drive the second push rod (610) to rise and fall, thereby driving the push ring (65) to rise and fall through the connecting rod (68), and the self-locking button switch (611) can maintain the rising and falling position of the second push rod (610).

10. A circuit breaker, comprising an air switch (10) and a shunt electrically connectable to the air switch (10), characterized in that: The shunt is the shunt of the circuit breaker according to any one of claims 1 to 9.

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