Jumping and closing loop wiring terminal

Abstract

The tripping and closing loop wiring terminal at least comprises a base and a plugging terminal, wherein the base is formed by arranging wiring units in rows. The wiring unit comprises a first shell and a first conductor, and the first conductor is provided with an input port, a short circuit interface, a test interface and a conductive column. The plugging terminal comprises a second shell and a plugging unit, a mounting cavity is formed in the second shell, first positioning grooves are formed in the mounting cavity, and the first positioning grooves are arranged in a staggered mode. The plugging unit comprises a third shell and a second conductor, the second conductor is provided with an output port and a plugging port, the third shell is matched with the mounting cavity and is provided with a first positioning block matched with the first positioning groove, and the plugging unit is plugged in the corresponding mounting cavity through the third shell. The tripping and closing loop wiring terminal has the advantages that later maintenance and replacement are easy and convenient, short-circuit operation and test operation are easy and convenient, the number of output ports can be adjusted in an expansible mode according to the number of output devices of different types, plugging and pulling are easy, and wiring errors cannot be caused.

Description

Technical Field

[0001] The invention relates to the technical field of wiring terminals, and in particular to a tripping and closing circuit wiring terminal. Background Art

[0002] The tripping and closing circuit terminals do play a vital role in the electrical system. They are not only the key components for connecting and fixing the wires, but also responsible for ensuring the accurate, reliable transmission and effective control of electrical signals. In the tripping and closing circuit of the electrical system, the terminals transmit the control signals from the sources such as protection devices and automation systems to the actuators such as circuit breakers and disconnectors to achieve remote control and protection of electrical equipment. This connection not only requires good electrical performance, but also must be safe and reliable to prevent equipment failure or safety accidents caused by problems such as poor contact, short circuit or open circuit.

[0003] The prior art tripping and closing circuit wiring terminals have some technical defects:

[0004] (1) Later maintenance and replacement are cumbersome

[0005] The existing circuit breaker terminal block adopts an integrated structural design scheme, one end of which is closely connected to the input device and the other end is connected to the output device, thus constructing a direct and clear electrical connection path. In the early stage of electrical system installation, this design provides significant convenience for technicians due to its simple and clear characteristics.

[0006] However, in the long-term operation of the electrical system, the replacement of output devices is an inevitable and normalized demand. In this process, the existing tripping and closing circuit terminal blocks have exposed their inherent limitations. Due to its integrated design, the number and type of input and output ports are relatively fixed and cannot be flexibly adjusted. When the output device needs to be updated or replaced, technicians often have to face tedious wiring and rewiring work.

[0007] Specifically, they need to dismantle the original connection lines one by one on site, and then reconnect the lines one by one according to the interface requirements of the new equipment. This process is not only cumbersome, time-consuming and labor-intensive, but also very easy to cause the failure of the entire circuit due to wiring errors, thus affecting the normal operation of the electrical system.

[0008] (2) Difficulty in plugging and unplugging

[0009] Another prior art tripping and closing circuit terminal block adopts a separate structural design, which divides the terminal block into two independent but mutually cooperative parts: one part is the input end that is closely connected to the input device, and the other part is the output end that is connected to the output device. The two parts can quickly establish and disconnect electrical connections through convenient plug-in and unplugging. This separate design does bring significant convenience during the initial installation and subsequent maintenance of the electrical system. It allows technicians to perform maintenance or replacement without large-scale dismantling and modification of the entire system. However, with the continuous expansion of the scale of electrical systems and the surge in the number and types of equipment, this design also faces new challenges. In particular, when the number of output ports exceeds 12, manual plug-in and unplugging operations become extremely difficult, and technicians have to use special tools to perform plug-in and unplug operations, which undoubtedly increases the complexity of the operation and dependence on tools.

[0010] (3) Short-circuit operation and test operation are cumbersome

[0011] Within the existing technical framework, the design of the tripping circuit terminal block still has significant limitations, especially in the structure of its conductors. These conductors lack interfaces designed specifically for short-circuit operations and test operations, which undoubtedly increases the complexity and inconvenience of actual operations. Specifically, when performing short-circuit operations, technicians have to rely on manual methods to accurately connect the short-circuit wiring between the conductors of the two circuits to achieve the short-circuit of the circuit. This process requires technicians to have a high degree of professional skills and meticulous operating capabilities, because any slight error may cause the short-circuit operation to fail, or even cause safety hazards.

[0012] Then, in order to conduct the test, the technicians need to perform tedious operations again to connect the wires of the test instrument to the short-circuited conductors. This step also requires extremely high precision and patience to ensure the accuracy and reliability of the test results. However, this manual operation method is not only inefficient, but also easily affected by human factors, resulting in operational errors or safety hazards. Summary of the invention

[0013] The technical problem to be solved by the present invention is to provide a circuit breaker terminal which is easy to maintain and replace later, has simple short-circuit and test operations, can expandably adjust the number of output ports according to the number of different types of output devices, is easy to plug and unplug, and will not cause wiring errors.

[0014] In order to solve the above technical problems, the present invention provides a technical solution, a tripping and closing circuit wiring terminal, comprising at least a base and a plug-in terminal formed by a plurality of wiring units arranged in a row and detachably connected;

[0015] Any of the wiring units comprises a first housing and a first conductor installed in the first housing, wherein the first conductor is provided with an input port, a short circuit interface, a test interface and a conductive column in sequence along an arrangement direction perpendicular to the wiring unit;

[0016] The plug-in terminal at least comprises:

[0017] A second housing, wherein mounting cavities arranged one-to-one with the wiring units are arranged in the second housing, and one or more first positioning grooves extending downward from the top end surface are arranged on the side wall of any of the mounting cavities, and the first positioning grooves are staggered along the arrangement direction of the mounting cavities;

[0018] A plug-in unit corresponding one-to-one to the installation cavity, the plug-in unit includes a third shell and a second conductor installed in the third shell, the second conductor is provided with an output port and a plug-in port corresponding to the conductive column, the third shell is adapted to the corresponding installation cavity, and a first positioning block adapted to the first positioning groove in the corresponding installation cavity is provided on the side wall, the plug-in unit is plugged one-to-one into the corresponding installation cavity through the third shell.

[0019] In a preferred embodiment, the input port is located on an end surface of the first conductor away from the conductive column, and the short-circuit interface, the test interface and the conductive column are located on the top end surface of the first conductor;

[0020] The first shell is provided with a first wiring groove matching the input port on the side wall, and a first slot hole matching the short-circuit interface, a second slot hole matching the test interface, and a slot matching the conductive column on the top wall, and the depth of the slot is greater than the height of the conductive column.

[0021] In a preferred embodiment, a first mounting hole communicating with the input port is disposed on the top end surface of the first conductor, and a third slot matching the first mounting hole is disposed on the top wall of the first shell.

[0022] In a preferred embodiment, the slot is provided with a second positioning groove extending downward from the top end surface on the side wall, the bottom of the third shell is provided with a plug-in portion adapted to the slot, and the plug-in portion is provided with a second positioning block adapted to the second positioning groove.

[0023] In a preferred embodiment, the second conductor includes an output portion, and a plug-in portion extending outwardly perpendicular to the side wall of the output portion, the output port is located on the end face of the output portion, the plug-in port is located on the end face of the plug-in portion away from the output portion, and the plug-in portion is provided with a fourth slot hole at the bottom that matches the position of the plug-in port, and the fourth slot hole is gradually tapered from the bottom of the plug-in portion to the plug-in port.

[0024] In a preferred embodiment, the top end surface of the output portion is provided with a second mounting hole connected to the output port, the third shell is provided with a second wiring slot matching the output port on the side wall, and a fifth slot hole matching the second mounting hole is provided on the top.

[0025] In a preferred embodiment, one side wall of the first shell protrudes outward to form a positioning portion, and the other side wall is recessed inward to form a first groove matched with the positioning portion, and the wiring unit is inserted into the groove through the positioning portion to be detachably connected to form the base.

[0026] In a preferred embodiment, the side walls of the first shell of the wiring unit located at the starting end and the end end protrude outward to form a first mounting portion, the side walls of the second shell are provided with a second mounting portion corresponding to the first mounting portion, the first mounting portion and the second mounting portion are provided with corresponding threaded holes, and the second shell and the first shell are detachably connected through the first mounting portion and the second mounting portion.

[0027] In a preferred embodiment, the second housing is provided with a wiring hole connected to the second wiring slot.

[0028] A preferred embodiment further includes a mounting rail, wherein the mounting rail is provided with a plurality of third mounting holes at intervals along its extension direction, and the edges on both sides protrude outward perpendicular to its extension direction to form a snap-fitting portion, and the bottom of the first shell is provided with a card slot corresponding to the snap-fitting portions on both sides of the mounting rail, and the wiring unit is removably mounted on the mounting rail by snapping the card slot with the snap-fitting portion.

[0029] Compared with the prior art, the tripping and closing circuit terminal of the present invention has the following beneficial effects:

[0030] (1) The tripping and closing circuit terminal of the present invention at least includes a base and a plug-in terminal formed by a plurality of wiring units arranged in rows and detachably connected. Any wiring unit includes a first shell and a first conductor installed in the first shell, and the first conductor is provided with an input port, a short-circuit interface, a test interface and a conductive column in sequence. The number of wiring units can be flexibly adjusted according to the requirements of the actual input device interface, and all these operations do not need to interfere with the connection status of the existing circuit. This feature eliminates the complicated and tedious on-site wiring removal, rewiring and connection processes in traditional operations when upgrading and renovating the circuit system, greatly reducing the operation time and difficulty. By reducing these complex manual operations, the present invention effectively reduces the risk of operational errors caused by human factors, thereby greatly improving the efficiency of installation operations and the convenience of subsequent maintenance work.

[0031] (2) The plug-in terminal of the present invention mainly comprises a second housing and a plurality of plug-in units embedded therein. The second housing is provided with an installation cavity corresponding to the wiring unit, so as to ensure that each plug-in unit can be accurately embedded therein to form a stable connection. Each plug-in unit is composed of a third housing and a second conductor installed therein, wherein the second conductor is provided with an output port and a plug-in port matching the conductive column, so as to achieve efficient and reliable electrical connection. The third housing is adapted to the corresponding installation cavity, so as to ensure stability and ease of use during the plug-in and pull-out process. Each plug-in unit adopts a separate design from the second housing, so as to solve the problem of too many plug-in units and difficulty in manual plug-in and pull-out caused by the continuous expansion of the scale of the electrical system and the surge in the number and types of equipment. It greatly reduces the complexity of operation and the dependence on professional tools, making installation, maintenance and upgrading easier and faster. At the same time, such a structural design ensures the independence of each plug-in unit, and the output port of each plug-in unit can adopt different interfaces to adapt to the interfaces of various output devices. Whether it is the connection of new equipment or the replacement of old equipment, seamless docking can be quickly achieved, thereby significantly improving the flexibility and compatibility of the entire electrical system.

[0032] (3) In the second housing design of the plug-in terminal of the present invention, one or more first positioning grooves are arranged on the side wall of each installation cavity. These positioning grooves extend downward from the top end surface and present a carefully staggered layout along the arrangement direction of the installation cavity. This not only enhances the stability of the structure, but also provides precise guidance for the installation of the plug-in unit.

[0033] Correspondingly, the side wall of the third shell is equipped with a first positioning block that matches the above-mentioned first positioning groove. When the plug-in units are inserted into the corresponding installation cavity one by one through the third shell, the tight combination of these first positioning blocks and the first positioning groove, like a precise lock and key mechanism, ensures that each plug-in unit can be accurately positioned in the predetermined position. It fundamentally avoids wiring errors that may occur during the wiring process. Since each plug-in unit is fixed by the combination of the first positioning groove and the first positioning block, during the connection process of the wiring unit, even in the face of complex electrical systems or a large number of plug-in units, it can ensure that each connection is accurate, thereby greatly improving the reliability and safety of the electrical connection.

[0034] (4) The tripping circuit terminal of the present invention has an input port located on the end face of the first conductor away from the conductive column, and the short-circuit interface, the test interface and the conductive column are located on the top end face of the first conductor. Such a design is not only convenient for operation, but also ensures clear separation and efficient interconnection between the interfaces. The first shell is provided with a first wiring slot matching the input port on the side wall, and a first slot matching the short-circuit interface, a second slot matching the test interface and a slot matching the conductive column are provided on the top wall. This design not only optimizes space utilization, but also greatly improves the flexibility and efficiency of the electrical system in short-circuiting and testing operations through the convenient setting of the short-circuit interface and the test interface. The depth of the slot is greater than the height of the conductive column, which effectively isolates the possibility of manual accidental touching of the conductive column at the physical level, thereby greatly reducing safety hazards during operation and ensuring the stability and reliability of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the installation structure of the base and plug-in terminal of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0036] Figure 2 It is a schematic diagram of the base installation structure of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0037] Figure 3 It is a schematic diagram of the first conductive body structure of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0038] Figure 4 A cross-sectional view of a wiring unit of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0039] Figure 5 It is a schematic diagram of the second housing structure of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0040] Figure 6 It is a schematic diagram of the plug-in unit structure of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0041] Figure 7 A cross-sectional view of a plug-in unit of an embodiment of a tripping and closing circuit wiring terminal of the present invention;

[0042] Figure 8 The present invention is a schematic diagram of the second conductor structure of an embodiment of a tripping and closing circuit wiring terminal of the present invention.

[0043] Description of reference numerals:

[0044] 1-base; 11-wiring unit; 111-first housing; 1111-first wiring slot; 1112-first slot hole; 1113-second slot hole; 1114-slot; 11141-second positioning slot; 1115-third slot hole; 1116-positioning portion; 1117-first groove; 1118-first mounting portion; 1119-card slot; 112-first conductor; 1121-input port; 1122-short circuit interface; 1123-test interface; 1124-conductive column; 1125-first mounting hole;

[0045] 2-plug-in terminal; 21-second housing; 211-installation cavity; 2111-first positioning slot; 212-second installation portion; 213-threaded hole; 214-wiring hole; 22-plug-in unit; 221-third housing; 2211-first positioning block; 2212-plug-in portion; 22121-second positioning block; 22122-fourth slot; 2213-second wiring slot; 2214-fifth slot; 222-second conductor; 2221-output port; 2222-plug-in port; 2223-output portion; 2224-plug-in portion; 2225-second installation hole;

[0046] 3-mounting rail; 31-third mounting hole; 32-clamping portion. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The tripping and closing circuit wiring terminals of this embodiment are as follows: Figure 1 As shown, it at least comprises a base 1 and a plug-in terminal 2 formed by a plurality of wiring units 11 arranged in a row and detachably connected. Figure 2 and Figure 3 As shown, any wiring unit includes a first shell 111 and a first conductor 112 installed in the first shell, and the first conductor 112 is provided with an input port 1121 for connecting to an input device, a short-circuit interface 1122 for short-circuiting, a test interface 1123 for testing, and a conductive column 1124 in sequence along an arrangement direction perpendicular to the wiring unit. The number of wiring units can be flexibly adjusted according to the needs of the actual input device interface, and all these operations do not need to interfere with the connection status of the existing circuit. This feature eliminates the complicated and cumbersome on-site wiring removal, rewiring and connection processes in traditional operations when upgrading and renovating the circuit system, greatly reducing the operation time and difficulty. By reducing these complex manual operations, the present invention effectively reduces the risk of operational errors caused by human factors, thereby greatly improving the efficiency of installation operations and the convenience of subsequent maintenance work.

[0051] In this embodiment, Figure 3 and Figure 4 As shown, the input port 1121 is displaced on the end surface of the first conductor away from the conductive column 1124, and the short-circuit interface 1122, the test interface 1123 and the conductive column 1124 are located on the top end surface of the first conductor. This design is not only easy to operate, but also ensures clear separation and efficient interconnection between the interfaces.

[0052] The first shell 111 is provided with a first wiring slot 1111 matching the input port 1121 on the side wall, and a first slot 1112 matching the short-circuit interface 1122, a second slot 1113 matching the test interface 1123, and a slot 1114 matching the conductive column 1124 on the top wall. This design not only optimizes the space utilization, but also greatly improves the flexibility and efficiency of the electrical system for short-circuit operation and test operation through the convenient setting of the short-circuit interface and the test interface. The design of these slots and slots not only ensures the close connection between each interface and the corresponding component, but also greatly improves the compactness of the overall structure. Not only does it make the entire device easy to expand in number in an electrical cabinet with limited space, but also effectively improves the integration and operation efficiency of the electrical system by optimizing the spatial layout and interface configuration. The depth of the slot 1114 is greater than the height of the conductive column 1124, which physically achieves isolation from the external environment. This isolation reduces the chance of direct contact between personnel and the conductive column, thereby reducing the risk of electric shock.

[0053] In this embodiment, a first mounting hole 1125 communicating with the input port is provided on the top end surface of the first conductor 112, and a third slot 1115 matching the first mounting hole is provided on the top wall of the first housing 111. With this structural design, on the one hand, the first conductor is firmly mounted in the first housing by means of screws, thereby ensuring the reliability of the first conductor; on the other hand, the original AC circuit cable inserted into the input port is firmly fixed by the tightening action of the screws, which not only significantly improves the reliability of the cable fixing, but also enhances its wide applicability to cables of different specifications and sizes.

[0054] The plug-in terminal 2 at least comprises a second housing 21. Figure 5 As shown, the second housing is provided with mounting cavities 211 arranged one by one with the wiring units 11, ensuring that each plug-in unit can be accurately embedded therein to form a stable connection. Any mounting cavity is provided with one or more first positioning grooves 2111 extending downward from the top end surface on the side wall. These positioning grooves extend downward from the top end surface and present a carefully staggered layout along the arrangement direction of the mounting cavity. This not only enhances the stability of the structure, but also provides precise guidance for the installation of the plug-in unit. The first positioning grooves are staggered along the arrangement direction of the mounting cavity.

[0055] like Figure 1 , Figure 6 and Figure 7As shown, the plug-in terminal 2 also includes a plug-in unit 22 corresponding to the installation cavity one by one. Each plug-in unit adopts a separate design from the second shell, which solves the problem of too many plug-in units and difficulty in manual plug-in and pull-out caused by the continuous expansion of the scale of the electrical system and the surge in the number and types of equipment. It greatly reduces the complexity of operation and reduces the dependence on professional tools, making installation, maintenance and upgrading easier and faster. At the same time, such a structural design ensures the independence of each plug-in unit. The output port of each plug-in unit can use different interfaces to adapt to the interfaces of various output devices. Whether it is the connection of new equipment or the replacement of old equipment, it can quickly achieve seamless docking, thereby significantly improving the flexibility and compatibility of the entire electrical system.

[0056] The plug-in terminal includes a third housing 221 and a second conductor 222 installed in the third housing. The second conductor is provided with an output port 2221 and a plug-in port 2222 corresponding to the conductive column. The third housing 221 is adapted to the corresponding installation cavity, and a first positioning block 2211 adapted to the first positioning groove in the corresponding installation cavity is provided on the side wall. The plug-in unit 22 is plugged into the corresponding installation cavity one by one through the third housing. When the plug-in units are inserted into the corresponding installation cavity one by one through the third housing, the close combination of these first positioning blocks and the first positioning groove, like a precise lock and key mechanism, ensures that each plug-in unit can be accurately positioned at a predetermined position. The wiring errors that may occur during the wiring process are fundamentally avoided. Since each plug-in unit is fixed by the combination of the first positioning groove and the first positioning block, during the connection process of the wiring unit, even in the face of a complex electrical system or a large number of plug-in units, each connection can be ensured to be accurate, thereby greatly improving the reliability and safety of the electrical connection.

[0057] In this embodiment, Figure 1 As shown, the slot 1114 is provided with a second positioning slot 11141 extending downward from the top end surface on the side wall, and the bottom of the third shell 221 is provided with a plug-in portion 2212 adapted to the slot, and the plug-in portion is provided with a second positioning block 22121 adapted to the second positioning slot.

[0058] like Figure 7 and Figure 8 As shown, the second conductor 222 includes an output portion 2223, and a plug-in portion 2224 extending outwardly perpendicular to the side wall of the output portion, the output port 2221 is located on the end face of the output portion, the plug-in port 2222 is located on the end face of the plug-in portion away from the output portion, and the plug-in portion 2212 is provided with a fourth slot 22122 at the bottom that matches the position of the plug-in port, and the fourth slot is gradually tapered from the bottom of the plug-in portion to the plug-in port.

[0059] In this embodiment, the top end surface of the output part 2223 is provided with a second mounting hole 2225 connected with the output port 2221, the third shell 221 is provided with a second wiring slot 2213 matching the output port on the side wall, and a fifth slot hole 2214 matching the second mounting hole is provided on the top. With this structural design, on the one hand, the second conductor is firmly mounted in the third shell by means of screws, thereby ensuring the reliability of the second conductor; on the other hand, the connecting wire inserted into the output port is firmly fixed to the external device through the tightening action of the screws, which not only significantly improves the reliability of fixing the connecting wire to the external device, but also enhances its wide applicability to connecting wires of different specifications and sizes.

[0060] like Figure 5 As shown, the second housing 21 is provided with a wiring hole 214 communicating with the second wiring slot 2213 .

[0061] like Figure 2 As shown, one side wall of the first housing 111 protrudes outward to form a positioning portion 1116, and the other side wall is recessed inward to form a first groove 1117 adapted to the positioning portion 1116, and the wiring unit is inserted into the groove through the positioning portion to be detachably connected to form the base 1. This design also has a certain degree of scalability, and the wiring unit can be easily added or removed to meet possible future expansion needs.

[0062] In this embodiment, the side walls of the first shell 111 of the wiring unit 11 located at the starting end and the end protrude outward to form a first mounting portion 1118, and the side walls of the second shell 21 are provided with a second mounting portion 212 corresponding to the first mounting portion, and the first mounting portion and the second mounting portion are provided with corresponding threaded holes 213, and the second shell and the first shell are detachably connected through the first mounting portion and the second mounting portion.

[0063] In this embodiment, Figure 1 and Figure 4 As shown, the tripping and closing circuit terminal also includes a mounting rail 3, which is provided with a plurality of third mounting holes 31 at intervals along its extension direction, and the edges on both sides protrude outward perpendicular to its extension direction to form a snap-fitting portion 32, and the bottom of the first shell 111 is provided with a card slot 1119 corresponding to the snap-fitting portions on both sides of the mounting rail, and the wiring unit 11 can be detachably mounted on the mounting rail by snapping the card slot 1119 with the snap-fitting portion 32.

[0064] In short, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tripping and closing circuit terminal, characterized in that: It at least comprises a base (1) formed by a plurality of wiring units (11) arranged in a row and detachably connected, and a plug-in terminal (2); Any of the wiring units (11) comprises a first shell (111) and a first conductor (112) installed in the first shell, wherein the first conductor is provided with an input port (1121), a short circuit interface (1122), a test interface (1123) and a conductive column (1124) in sequence along an arrangement direction perpendicular to the wiring unit; The plug-in terminal (2) at least comprises: A second housing (21), wherein the second housing is provided with installation cavities (211) arranged one-to-one with the wiring units, and any of the installation cavities is provided with one or more first positioning grooves (2111) extending downward from the top end surface on the side wall, and the first positioning grooves are arranged in a staggered manner along the arrangement direction of the installation cavities; A plug-in unit (22) corresponding one-to-one to the installation cavity, the plug-in unit comprising a third shell (221) and a second conductor (222) installed in the third shell, the second conductor being provided with an output port (2221) and a plug-in port (2222) corresponding to the conductive column, the third shell (221) being adapted to the corresponding installation cavity, and a first positioning block (2211) being adapted to the first positioning groove in the corresponding installation cavity being provided on the side wall, the plug-in unit (22) being plugged one-to-one into the corresponding installation cavity through the third shell.

2. A tripping and closing circuit terminal according to claim 1, characterized in that: The input port (1121) is located on an end surface of the first conductor away from the conductive column (1124), and the short circuit interface (1122), the test interface (1123) and the conductive column (1124) are located on the top end surface of the first conductor; The first shell (111) is provided with a first wiring slot (1111) matching the input port (1121) on the side wall, and is provided with a first slot hole (1112) matching the short-circuit interface (1122), a second slot hole (1113) matching the test interface (1123), and a slot (1114) matching the conductive column (1124) on the top wall, wherein the depth of the slot is greater than the height of the conductive column.

3. A tripping and closing circuit terminal according to claim 2, characterized in that: A first mounting hole (1125) communicating with the input port is provided on the top end surface of the first conductor (112), and a third slot hole (1115) matching the first mounting hole is provided on the top wall of the first shell (111).

4. A tripping and closing circuit terminal according to claim 2 or 3, characterized in that: The slot (1114) is provided with a second positioning groove (11141) extending downward from the top end surface on the side wall, and the bottom of the third shell (221) is provided with a plug-in portion (2212) adapted to the slot, and the plug-in portion (2212) is provided with a second positioning block (22121) adapted to the second positioning groove.

5. A tripping and closing circuit terminal according to claim 4, characterized in that: The second conductor (222) comprises an output portion (2223), and a plug-in portion (2224) extending outwardly perpendicularly from a side wall of the output portion, the output port (2221) is located on an end face of the output portion, the plug-in port (2222) is located on an end face of the plug-in portion away from the output portion, and the plug-in portion (2212) is provided with a fourth slot hole (22122) at the bottom thereof that matches the position of the plug-in port, and the fourth slot hole is provided in a tapered manner from the bottom of the plug-in portion toward the plug-in port.

6. A tripping and closing circuit terminal according to claim 5, characterized in that: The top end surface of the output portion (2223) is provided with a second mounting hole (2225) connected to the output port (2221), the third shell (221) is provided with a second wiring slot (2213) matching the output port on the side wall, and a fifth slot hole (2214) matching the second mounting hole is provided on the top.

7. A tripping and closing circuit terminal according to claim 6, characterized in that: The second housing (21) is provided with a wiring hole (214) which is in communication with the second wiring slot (2213).

8. A tripping and closing circuit terminal according to any one of claims 1-3 or 5-7, characterized in that: One side wall of the first shell (111) protrudes outward to form a positioning portion (1116), and the other side wall is recessed inward to form a first groove (1117) adapted to the positioning portion (1116), and the wiring unit is inserted into the groove through the positioning portion to be detachably connected to form the base (1).

9. A tripping and closing circuit terminal according to claim 8, characterized in that: The side walls of the first shell (111) of the wiring unit (11) located at the starting end and the end end protrude outward to form a first mounting portion (1118), and the side walls of the second shell (21) are provided with a second mounting portion (212) corresponding to the first mounting portion, and the first mounting portion and the second mounting portion are provided with corresponding threaded holes (213), and the second shell and the first shell are detachably connected via the first mounting portion and the second mounting portion.

10. A tripping and closing circuit terminal according to claim 9, characterized in that: The invention also comprises a mounting rail (3), wherein the mounting rail is provided with a plurality of third mounting holes (31) at intervals along its extension direction, and the edges on both sides thereof protrude outward perpendicularly to its extension direction to form a snap-fitting portion (32), and the bottom of the first shell (111) is provided with snap-fitting grooves (1119) corresponding to the snap-fitting portions on both sides of the mounting rail one by one, and the wiring unit (11) is detachably mounted on the mounting rail by snapping the snap-fitting grooves (1119) with the snap-fitting portions (32).

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