Current loop wiring terminal

Abstract

The current loop wiring terminal at least comprises a base and a plugging terminal, the base comprises a first shell, a first electric conductor and a second electric conductor, the first electric conductor is provided with an input port, a first short circuit interface and a first elastic sheet, and the second electric conductor is provided with a second elastic sheet and a conductive column. The first elastic piece and the second elastic piece form a test socket, and the test socket has a conduction state in which the first elastic piece abuts against the second elastic piece to electrically connect the first electric conductor and the second electric conductor, and a disconnection state in which the first elastic piece and the second elastic piece are separated from each other to disconnect the first electric conductor and the second electric conductor. The plugging terminal comprises a second shell and a third conductor, and the third conductor is provided with an output port and a plugging port matched with the conductive column. The current loop wiring terminal provided by the utility model has the advantages of simple and rapid short circuit operation and test operation, simple later maintenance, and convenient replacement of external connection equipment.

Description

Technical Field

[0001] This utility model relates to the field of terminal block technology, and specifically to a current loop terminal block. Background Technology

[0002] In modern electrical engineering, current loop terminals, as crucial components for electrical connections, are widely used in various electrical equipment and systems. They not only bear the responsibility of transmitting current and signals but also directly affect the safe and reliable operation of electrical systems. In AC circuits, terminals, through their internal metal conductor and insulator structure, effectively connect different electrical components or circuits, ensuring smooth transmission of current and signals. They typically feature large crimping areas, reliable contact, and excellent conductivity to adapt to high-voltage, high-current AC environments.

[0003] Existing current loop terminals have some technical defects:

[0004] (1) Short-circuit operation and testing operation are cumbersome

[0005] In power distribution systems, current loop terminals are typically configured with input cables connected to the input terminals, while the output terminals are connected to relay protection and other electrical devices. To ensure the continuous and stable operation of the power distribution system, it is essential to periodically and rigorously test the inputs and outputs of relay protection and other electrical devices without affecting the normal operation of the existing circuits. The key to this process is that the existing circuits must remain closed during testing to avoid any interruptions.

[0006] However, the current loop terminal design in existing technology has significant drawbacks: the metal parts are directly exposed, making short-circuiting and test lead connections complex for on-site operators. This design not only increases the complexity of operation but also greatly increases the risk of human error, such as accidental contact leading to safety accidents, thus creating potential safety hazards. Furthermore, the cumbersome operating procedures often lead to frequent wiring errors, such as accidentally short-circuiting electrical components in the original circuit, especially serious problems like short-circuiting voltage transformers or accidentally opening current transformers. These errors can directly damage the electrical cabinet, thereby affecting the stable operation of the entire power distribution system.

[0007] (2) Post-maintenance and replacement operations are cumbersome. Throughout the entire life cycle of an electrical system, iterative upgrades of protection devices are a routine and necessary task. However, this process is often accompanied by extremely tedious disconnection and rewiring operations. Workers must carefully disconnect all connection points between the old protection device and the terminal block one by one, and then accurately reconnect the new protection device to the terminal block one by one to ensure that every line is accurate.

[0008] Such operating procedures are not only extremely time-consuming and labor-intensive, leading to low work efficiency, but also pose a significant threat to the stable operation of the electrical system. The tedious disassembly and assembly process can easily trigger serious safety issues such as short circuits and open circuits if handled carelessly. These problems not only increase the operational risks but can also cause economic losses and safety hazards due to unexpected interruptions in the electrical system. Summary of the Invention

[0009] The technical problem to be solved by this utility model is to provide a terminal block that is easy and quick to use for short-circuiting and testing, and is easy to maintain and replace with external connection devices.

[0010] To solve the above-mentioned technical problems, the present invention provides a current loop terminal block, comprising at least:

[0011] The base includes a first housing and a first conductor and a second conductor installed inside the first housing. The first conductor is provided with an input port for connecting to an external device, a first spring for electrically connecting to the second conductor, and a first short-circuit interface located between the input port and the first spring. The second conductor is provided with a second spring adapted to the first spring, and a conductive post.

[0012] The first spring and the second spring form a test socket. The test socket has a conductive state in which the first spring and the second spring abut against each other, so that the first conductor and the second conductor are electrically connected, and a circuit-breaking state in which the first spring and the second spring are separated from each other, so that the first conductor and the second conductor are disconnected.

[0013] The plug-in terminal includes a second housing detachably connected to the first housing and a third conductor installed in the second housing. The third conductor is provided with an output port for connecting to an external device and a plug-in port adapted to the conductive post.

[0014] In a preferred embodiment, the test plug is further adapted to the test socket. The test plug includes a third housing and a fourth conductor and a fifth conductor installed in the third housing. The fourth conductor is provided with a first test interface, and the fifth conductor is provided with a second test interface.

[0015] The test plug has a first state in which it is located outside the test socket and the test socket is in a conductive state, and a second state in which it is inserted into the test socket and the test socket is in a disconnected state, and the first spring is electrically connected to the fourth conductor and the second spring is electrically connected to the fifth conductor.

[0016] In a preferred embodiment, the bottom of the third housing is provided with an insertion part for inserting between the first spring and the second spring, so that the test socket switches from the conducting state to the disconnected state;

[0017] The fourth conductor is provided with a first conductive portion extending along the side of the insertion portion near the first spring piece, and the fourth conductor is electrically connected to the first spring piece through the first conductive portion.

[0018] The fifth conductor is provided with a second conductive portion extending along the insertion portion near the second spring piece, and the fifth conductor is electrically connected to the second spring piece through the second conductive portion.

[0019] In a preferred embodiment, the fourth conductor has a second short-circuit interface on its top end face, and the third housing has a first slot that matches the second short-circuit interface.

[0020] In a preferred embodiment, the first housing is provided with a second slot that matches the test socket, and the height of the test socket is less than the depth of the second slot;

[0021] The first spring is located at one end of the first conductor near the second conductor. The first spring includes a fixing part fixedly connected to the first conductor, a connecting part extending from the fixing part into the second slot, and a working part extending from the connecting part toward the second spring for elastically abutting against the second spring.

[0022] In a preferred embodiment, the input port is located on the end face of the first conductor away from the second conductor, and the first short-circuit interface is located on the top end face of the first conductor.

[0023] The first housing has a first wiring groove on its side wall that matches the input port, and a third slot on its top that matches the first short-circuit interface.

[0024] In a preferred embodiment, the structure of the second spring is the same as that of the first spring and they are symmetrically arranged. The second spring is located at the end of the second conductor closer to the first conductor, and the conductive post is located at the end of the second conductor away from the first conductor. The first housing has a fourth slot at the top that matches the position of the conductive post. The conductive post is located in the fourth slot and its height is less than the depth of the fourth slot.

[0025] In a preferred embodiment, the third conductor includes an output portion and a plug-in portion extending outward perpendicular to the side wall of the output portion. The output port is located on the end face of the output portion, and the plug-in port is located on the end face of the plug-in portion away from the output portion. The second housing has a second wiring groove on its side wall that matches the output port, and a fifth slot hole on its bottom that matches the plug-in port.

[0026] In a preferred embodiment, the plug-in part is provided with a wiring port on the side wall away from the output port, and the second housing is provided with a third wiring groove adapted to the wiring port.

[0027] In a preferred embodiment, the bottom of the second housing is provided with a plug-in end whose outer wall surface is adapted to the fourth slot, the fifth slot is located at the bottom of the plug-in end, the plug-in terminal is embedded in the fourth slot through the plug-in end, and the conductive post is embedded in the plug-in port and connected to the base.

[0028] Compared with the prior art, the current loop terminal of this utility model has the following advantages:

[0029] (1) The current loop terminal of this utility model includes at least a base and a plug-in terminal. The base includes a first housing and a first conductor and a second conductor installed in the first housing. The second conductor is provided with a conductive post. The plug-in terminal includes a second housing detachably connected to the first housing and a third conductor installed in the second housing. The third conductor is provided with an output port for connecting external devices and a plug-in port adapted to the conductive post, ensuring the stability and reliability of the electrical connection. The current loop terminal adopts a separate base and plug-in terminal structure design. By simply inserting the plug-in terminal into the base, the electrical connection between the external device and the current loop terminal can be quickly realized; conversely, the connection can be quickly disconnected by easily pulling out the plug-in terminal, which greatly simplifies the later maintenance and replacement process. There is no need to disassemble the entire current loop terminal. The replacement of external devices can be easily completed by simply plugging and unplugging, which significantly improves work efficiency. The detachable plug-in terminal design offers another significant advantage: it allows for pre-wiring with external devices during the initial preparation phase. This means that during on-site maintenance and replacement, simply inserting the plug-in terminal into the base completes the connection, greatly reducing the complex and time-consuming work of plugging, rewiring, and rewiring on-site. This innovative design not only reduces the risk of short circuits and wiring errors due to accidental contact but also significantly improves installation and maintenance efficiency, effectively saving manpower and time costs, demonstrating excellent practicality and economy.

[0030] (2) The current loop terminal of this utility model has an input port for connecting to external equipment, a first spring for electrical connection to the second conductor, and a first short-circuit interface located between the input port and the first spring. During testing, there is no need for cumbersome short-circuit wiring; simply inserting a shorting strip or shorting wire into the first short-circuit interface of the different current loop terminals completes the short-circuit operation, reducing both the complexity of the operation and the risk of human error. The second conductor has a second spring that matches the first spring. The first spring and the second spring form a test socket. The test socket has a conducting state where the first spring and the second spring abut against each other, electrically connecting the first conductor and the second conductor, and an open-circuit state where the first spring and the second spring separate, disconnecting the first conductor from the second conductor. This structural design not only ensures the high efficiency and stability of current transmission but also provides a visible disconnection point between the first conductor and the second conductor, allowing operators to intuitively judge the connection status inside the current loop terminal.

[0031] (3) The current loop terminal of this utility model further includes a test plug adapted to the test socket. The test plug includes a third housing, and a fourth conductor and a fifth conductor installed in the third housing. The fourth conductor is provided with a first test interface, and the fifth conductor is provided with a second test interface. The test plug has a first state located outside the test socket, making the test socket in a conductive state, and a second state inserted into the test socket, making the test socket in a disconnected state, and the first spring contact is electrically connected to the fourth conductor, and the second spring contact is electrically connected to the fifth conductor. With this structural design, by simply inserting the test plug into the test socket, the first conductor and the second conductor can be quickly disconnected. The original circuit can be tested through the first test interface of the fourth conductor, and the external device connected to the plug-in terminal can be tested through the fifth conductor, which greatly simplifies the test operation and improves the test efficiency.

[0032] (4) In the current loop terminal of this utility model, the fourth conductor of the test plug is provided with a second short-circuit interface on the top end face, and the third housing is provided with a first slot that matches the second short-circuit interface. By inserting the shorting wire or shorting strip into the first short-circuit interface or the second short-circuit interface, the original circuit can be shorted. Multiple short-circuit wiring methods greatly improve the flexibility and convenience of wiring, ensuring that the product can easily adapt to various complex application scenarios, significantly enhancing its practical value and market adaptability. The current loop terminal of this utility model also supports the simultaneous and secure insertion of the shorting wire or shorting strip into the first short-circuit interface and the second short-circuit interface, thereby constructing a dual short-circuit protection mechanism for the current loop terminal. This innovative design effectively solves the problem of accidental detachment of the shorting wire or shorting strip due to frequent plugging and unplugging operations during the testing process, which may lead to the interruption of the original circuit. It strongly ensures the continuous and stable operation of the power distribution system and avoids potential economic losses and safety risks caused by circuit interruption. Attached Figure Description

[0033] Figure 1 This is an exploded view of the overall structure of an embodiment of the current loop terminal block of this utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the first conductor and the second conductor in an embodiment of the current loop terminal of this utility model;

[0035] Figure 3 This is a cross-sectional view of the test plug of an embodiment of the current loop wiring terminal of this utility model;

[0036] Figure 4 This is a schematic diagram of the third conductor structure of an embodiment of the current loop terminal block of this utility model;

[0037] Figure 5 This is a schematic diagram of the third conductor from another angle in an embodiment of a current loop terminal block of this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Base; 11-First housing; 111-Second slot; 112-First wiring slot; 113-Third slot; 114-Fourth slot; 12-First conductor; 121-Input port; 122-First spring; 1221-Fixing part; 1222-Connecting part; 1223-Working part; 123-First short-circuit interface; 13-Second conductor; 131-Second spring; 132-Conductive post; 14-Test socket;

[0040] 2-Plug-in terminal; 21-Second housing; 211-Second wiring slot; 212-Fifth slot; 213-Third wiring slot; 214-Plug-in end; 22-Third conductor; 221-Output section; 2211-Output port; 222-Plug-in section; 2221-Plug-in port; 2222-Wiring port;

[0041] 3-Test plug; 31-Third housing; 311-Insert part; 312-First slot; 32-Fourth conductor; 321-First test interface; 322-First conductive part; 323-Second short-circuit interface; 33-Fifth conductor; 331-Second test interface; 332-Second conductive part; Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0043] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0045] The current loop wiring terminals in this embodiment, such as Figure 1 As shown, it includes at least a base 1 and plug-in terminals 2. The base includes a first housing 11 and a first conductor 12 and a second conductor 13 installed inside the first housing. In this embodiment, the two housings are fastened together to form an internal cavity in the first housing 11, and the first conductor and the second conductor are installed inside the cavity of the first housing.

[0046] like Figure 2The first conductor is provided with an input port 121 for connecting to external devices, a first spring contact 122 for electrical connection to the second conductor, and a first short-circuit interface 123 located between the input port and the first spring contact. During testing, cumbersome short-circuit wiring is not required; simply inserting a short-circuit strip or short-circuit wire into the first short-circuit interface of the different current loop terminals completes the short-circuit operation, reducing both the complexity of the operation and the risk of human error. The second conductor is provided with a second spring contact 131 adapted to the first spring contact, and a conductive post 132. The first and second spring contacts form a test socket 14, which has a conducting state where the first and second spring contacts abut against each other, electrically connecting the first and second conductors, and an open-circuit state where the first and second spring contacts separate, disconnecting the first and second conductors. This structural design not only ensures the high efficiency and stability of current transmission but also provides a visible disconnection point between the first and second conductors, allowing operators to intuitively judge the connection status inside the current loop terminals.

[0047] The plug-in terminal 2 includes a second housing 21 detachably connected to the first housing and a third conductor 22 installed within the second housing. The third conductor is provided with an output port 2211 for connecting external devices and a plug-in port 2221 adapted to the conductive post 132, ensuring the stability and reliability of the electrical connection. The current loop terminal adopts a separate base and plug-in terminal design. By simply inserting the plug-in terminal into the base, electrical connection between the external device and the current loop terminal can be quickly achieved; conversely, the connection can be quickly disconnected by easily pulling out the plug-in terminal, greatly simplifying the later maintenance and replacement process. There is no need for cumbersome disassembly of the entire current loop terminal; the replacement of external devices can be easily completed with just a plug-in operation, significantly improving work efficiency. The separate plug-in terminal design also brings another major advantage: it allows for pre-wiring operations with external devices through the plug-in terminal during the preparation stage. Thus, during on-site maintenance and replacement, the connection can be completed simply by inserting the plug-in terminal into the base, greatly avoiding the complex and time-consuming on-site wiring, rewiring, and cabling work. This innovative design not only reduces the risk of short circuits and wiring errors caused by accidental contact, but also significantly improves the efficiency of installation and maintenance, effectively saving manpower and time costs, demonstrating excellent practicality and economy.

[0048] Preferred, such as Figure 1 As shown, the first housing is provided with a second slot 111 that matches the test socket 14. The height of the test socket is less than the depth of the second slot, which physically isolates it from the external environment. This isolation reduces the chance of personnel directly contacting the test socket, thereby reducing the risk of electric shock.

[0049] Preferably, the input port 121 is located on the end face of the first conductor away from the second conductor, and the first short-circuit interface 123 is located on the top end face of the first conductor. The first housing is provided with a first wiring groove 112 on the side wall that matches the input port, and a third slot 113 on the top that matches the first short-circuit interface.

[0050] like Figure 2 As shown, the first spring piece 122 is located at one end of the first conductor 12 near the second conductor 13. The first spring piece includes a fixing part 1221 fixedly connected to the first conductor, a connecting part 1222 extending from the fixing part into the second slot, and a working part 1223 extending from the connecting part toward the second spring piece for elastically abutting against the second spring piece.

[0051] In this embodiment, the structure of the second spring 131 is the same as that of the first spring 122, and they are symmetrically arranged. The second spring is located at the end of the second conductor closer to the first conductor, and the conductive post 132 is located at the end of the second conductor away from the first conductor. The first housing is provided with a fourth slot 114 at the top that matches the position of the conductive post. The conductive post is located in the fourth slot and its height is less than the depth of the fourth slot, which physically isolates it from the external environment. This isolation reduces the chance of personnel directly contacting the test socket, thereby reducing the risk of electric shock.

[0052] like Figure 1 and Figure 3 As shown, the current loop terminal block in this embodiment also includes a test plug 3 adapted to the test socket 14. The test plug includes a third housing 31, and a fourth conductor 32 and a fifth conductor 33 installed within the third housing. The fourth conductor is provided with a first test interface 321, and the fifth conductor is provided with a second test interface 331. The test plug has a first state where it is located outside the test socket, making the test socket a conductive state, and a second state where it is inserted into the test socket, making the test socket a disconnected state, and the first spring is electrically connected to the fourth conductor, and the second spring is electrically connected to the fifth conductor. With this structural design, by simply inserting the test plug into the test socket, the connection between the first conductor and the second conductor can be quickly achieved. The original circuit can be tested through the first test interface of the fourth conductor, and the external device connected to the plug-in terminal can be tested through the fifth conductor, which greatly simplifies the testing operation and improves the testing efficiency.

[0053] Preferably, the bottom of the third housing 31 is provided with an insertion part 311 for inserting between the first spring 122 and the second spring 131, so that the test socket 14 switches from a conductive state to an open state; the fourth conductor 32 is provided with a first conductive part 322 extending along the insertion part near the first spring, and the fourth conductor is electrically connected to the first spring through the first conductive part; the fifth conductor 33 is provided with a second conductive part 332 extending along the insertion part near the second spring, and the fifth conductor is electrically connected to the second spring through the second conductive part.

[0054] In this embodiment, the fourth conductor 32 has a second short-circuit interface 323 on its top end face, and the third housing 31 has a first slot 312 that matches the second short-circuit interface. By inserting a shorting wire or shorting strip into the first or second short-circuit interface, the original circuit can be shorted. Multiple short-circuit wiring methods greatly improve the flexibility and convenience of wiring, ensuring that the product can easily adapt to various complex application scenarios, significantly enhancing its practical value and market adaptability. The current loop terminal of this invention also supports the simultaneous and secure insertion of shorting wires or shorting strips into both the first and second short-circuit interfaces, thereby constructing a dual short-circuit protection mechanism for the current loop terminal. This innovative design effectively solves the problem of accidental detachment of shorting wires or shorting strips due to frequent plugging and unplugging operations during testing, which could lead to interruption of the original circuit. It strongly ensures the continuous and stable operation of the power distribution system and avoids potential economic losses and safety risks caused by circuit interruptions.

[0055] like Figure 4 As shown, the third conductor 22 includes an output portion 221 and a plug-in portion 222 extending outward perpendicular to the side wall of the output portion. An output port 2211 is located on the end face of the output portion, and a plug-in port 2221 is located on the end face of the plug-in portion away from the output portion. The second housing 21 has a second wiring groove 211 on its side wall that matches the output port, and a fifth slot 212 on its bottom that matches the plug-in port. In this embodiment, the fifth slot gradually narrows from the bottom of the second housing towards the plug-in portion, facilitating the connection between the plug-in port 2221 and the conductive post during the insertion of the plug-in terminal into the base.

[0056] like Figure 5 As shown, the plug-in part has a wiring port 2222 on the side wall away from the output port 2211, and the second housing 21 has a third wiring groove 213 adapted to the wiring port.

[0057] like Figure 1 As shown, the bottom of the second housing 21 is provided with a plug-in end 214 whose outer wall surface is adapted to the fourth slot 114. The fifth slot 212 is located at the bottom of the plug-in end 214. The plug-in terminal 2 is inserted into the fourth slot through the plug-in end, and the conductive post 132 is inserted into the plug-in port 2221 and connected to the base.

[0058] In summary, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A current loop terminal block, characterized in that, At least including: The base (1) includes a first housing (11) and a first conductor (12) and a second conductor (13) installed in the first housing. The first conductor is provided with an input port (121) for connecting to an external device, a first spring (122) for electrically connecting to the second conductor, and a first short-circuit interface (123) located between the input port and the first spring. The second conductor (13) is provided with a second spring (131) adapted to the first spring, and a conductive post (132). The first spring and the second spring form a test socket (14). The test socket has a conducting state in which the first spring and the second spring abut against each other, so that the first conductor and the second conductor are electrically connected, and a breaking state in which the first spring and the second spring are separated from each other, so that the first conductor and the second conductor are disconnected. The plug-in terminal (2) includes a second housing (21) detachably connected to the first housing and a third conductor (22) installed in the second housing. The third conductor is provided with an output port (2211) for connecting to an external device and a plug-in port (2221) adapted to the conductive post.

2. A current loop terminal block according to claim 1, characterized in that: It also includes a test plug (3) adapted to the test socket (14), the test plug including a third housing (31), and a fourth conductor (32) and a fifth conductor (33) installed in the third housing, the fourth conductor being provided with a first test interface (321), and the fifth conductor being provided with a second test interface (331); The test plug has a first state in which it is located outside the test socket and the test socket is in a conductive state, and a second state in which it is inserted into the test socket and the test socket is in a disconnected state, and the first spring is electrically connected to the fourth conductor and the second spring is electrically connected to the fifth conductor.

3. A current loop terminal block according to claim 2, characterized in that: The bottom of the third housing (31) is provided with an insertion part (311) for inserting between the first spring (122) and the second spring (131) to switch the test port from the conducting state to the disconnected state. The fourth conductor (32) is provided with a first conductive part (322) extending along the side of the insertion portion near the first spring piece, and the fourth conductor is electrically connected to the first spring piece through the first conductive part; The fifth conductor (33) is provided with a second conductive part (332) extending along the insertion portion near the second spring piece, and the fifth conductor is electrically connected to the second spring piece through the second conductive part.

4. A current loop terminal block according to claim 3, characterized in that: The fourth conductor (32) is provided with a second short-circuit interface (323) on its top end face, and the third housing (31) is provided with a first slot (312) that matches the second short-circuit interface.

5. A current loop terminal block according to any one of claims 2-4, characterized in that: The first housing (11) is provided with a second slot (111) that matches the test socket (14), and the height of the test socket is less than the depth of the second slot; The first spring (122) is located at one end of the first conductor near the second conductor. The first spring includes a fixing part (1221) fixedly connected to the first conductor, a connecting part (1222) extending from the fixing part into the second slot, and a working part (1223) extending from the connecting part toward the second spring for elastically abutting against the second spring.

6. A current loop terminal block according to claim 5, characterized in that: The input port (121) is located on the end face of the first conductor away from the second conductor, and the first short-circuit interface (123) is located on the top end face of the first conductor; The first housing has a first wiring groove (112) on its side wall that matches the input port, and a third slot (113) on its top that matches the first short-circuit interface.

7. A current loop terminal block according to claim 6, characterized in that: The structure of the second spring (131) is the same as that of the first spring (122) and they are symmetrically arranged. The second spring is located at the end of the second conductor closer to the first conductor, and the conductive post (132) is located at the end of the second conductor away from the first conductor. The first housing is provided with a fourth slot (114) at the top that matches the position of the conductive post. The conductive post is located in the fourth slot and its height is less than the depth of the fourth slot.

8. A current loop terminal block according to claim 7, characterized in that: The third conductor (22) includes an output section (221) and a plug-in section (222) extending outward perpendicular to the side wall of the output section. The output port (2211) is located on the end face of the output section, and the plug-in port (2221) is located on the end face of the plug-in section away from the output section. The second housing (21) has a second wiring groove (211) on its side wall that is adapted to the output port, and a fifth slot (212) on its bottom that is adapted to the plug-in port.

9. A current loop terminal block according to claim 8, characterized in that: The plug-in part (222) has a wiring port (2222) on the side wall away from the output port (2211), and the second housing (21) has a third wiring groove (213) adapted to the wiring port.

10. A current loop terminal block according to claim 9, characterized in that: The bottom of the second housing (21) is provided with a plug-in end (214) whose outer wall surface is adapted to the fourth slot (114). The fifth slot (212) is located at the bottom of the plug-in end (214). The plug-in terminal (2) is embedded in the fourth slot through the plug-in end, and the conductive post (132) is embedded in the plug-in port (2221) and connected to the base.

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