A signal wiring terminal and a signal wiring terminal combination structure

Abstract

The present invention discloses a signal wiring terminal and a signal wiring terminal combination structure, wherein the signal wiring terminal comprises: a base, comprising a first shell and a first conductor; the first conductor is installed in the first shell; the first conductor has an input port and a plug interface; the input port is used to connect with a cable; and a plug-in terminal, which can be detachably installed on the base, comprises a second shell and a second conductor; the second conductor is installed in the second shell; the second conductor has a conductive column and at least one output port; the conductive column is adapted to the plug interface; the output port is used to connect with an external device; the signal wiring terminal combination structure comprises a plurality of signal wiring terminals arranged side by side; the present invention improves the flexibility and extensibility of the signal wiring terminal.

Description

Technical Field

[0001] The invention relates to the field of wiring terminals, and in particular to a signal wiring terminal and a signal wiring terminal combination structure. Background Art

[0002] Signal terminals are the core components of electrical systems. They are not only the key channels for efficient and accurate transmission of current, signals and data, but also the important cornerstones for the stable operation and high efficiency of the entire electrical system. In electrical engineering, signal terminals, with their unique physical structure and electrical properties, ensure lossless conduction of current and accurate transmission of information, laying a solid foundation for the smooth operation of electrical systems.

[0003] The signal terminals and their combination structures widely used in the market are generally designed to connect input devices at one end and output devices at the other end. This direct and clear signal terminal connection method undoubtedly provides great convenience for technicians in the early stages of electrical system installation.

[0004] With the rapid development of electrical technology and the increasing complexity of electrical systems, the limitations of this traditional connection method have become increasingly prominent. On the one hand, with the surge in the number of devices and the diversification of types in electrical systems, the number and types of signal terminals have also increased significantly, which undoubtedly aggravates the tediousness and complexity of installation and maintenance work. The limitations of the number and type of interfaces of the signal terminals in the prior art lead to poor adaptability and compatibility, making it difficult to meet the growing expansion needs. On the other hand, the signal terminals also face severe challenges in the later maintenance and replacement process. During the life cycle of the electrical system, the replacement of the output devices that need to be connected is a normal demand, but this process is often accompanied by tedious wiring and rewiring. Technicians need to disconnect all connections between the old output devices and the signal terminals one by one, and then reconnect the new output devices to the terminals one by one. This process is not only time-consuming and labor-intensive, but also inefficient, and may trigger safety hazards such as short circuits and open circuits if not handled with care, posing a serious threat to the stable operation of the electrical system. Summary of the invention

[0005] In order to overcome the deficiencies in the prior art, the present invention provides a signal wiring terminal and a signal wiring terminal combination structure, which have the advantages of high flexibility and expansibility.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A signal terminal comprises: a base, comprising a first housing and a first conductor; the first conductor is installed in the first housing; the first conductor has an input port and a plug port; the input port is used to connect with a cable;

[0008] The plug-in terminal can be detachably mounted on the base, and comprises a second shell and a second conductor; the second conductor is mounted in the second shell; the second conductor has a conductive column and at least one output port; the conductive column is adapted to the plug-in port; the output port is used to connect to an external device.

[0009] By adopting the above technical solution, the plug-in terminal and the base are separated, so that the plug-in terminal and the base can be quickly plugged in and out. On the one hand, the output port of the plug-in terminal is adapted to the wiring scheme of different protection devices, and different protection devices can be connected to the same base through the plug-in terminal, which improves the flexibility and scalability of the signal wiring terminal; on the other hand, the protection device can be pre-connected with the plug-in terminal, which effectively avoids the complex and time-consuming rewiring work on site, greatly improves the work efficiency of installation and maintenance, and reduces the manpower and time costs.

[0010] Optionally, the first conductor has a short-circuit interface; the short-circuit interface is used for short-circuiting the circuit.

[0011] By adopting the above technical solution, the short-circuit operation of the bases of different signal terminal blocks can be quickly realized through the short-circuit interface, which significantly shortens the operation time and improves work efficiency when circuit testing, debugging or temporary connection is required.

[0012] Optionally, the first conductor has a test port; the test port is used for testing the connection.

[0013] By adopting the above technical solution, users can easily achieve test connection without complicated operation steps, which greatly improves work efficiency and simplicity of operation and enriches the functionality and practicality of signal wiring terminals.

[0014] Optionally, the first conductor is L-shaped and includes a horizontal first conductive part and a vertical second conductive part; the plug-in port is located on the top surface of the second conductive part; a mounting portion for accommodating the second conductive portion is formed on the top of the first shell; a positioning groove for inserting the mounting portion is formed on the bottom surface of the second shell; and the conductive column is located in the positioning groove.

[0015] By adopting the above technical solution, the mounting part cooperates with the second conductive part to realize the connection between the first shell and the second shell, and at the same time plays a connecting guide role between the conductive column and the plug interface, so that the connection between the conductive column and the plug interface is faster, more accurate and more stable, thereby improving the efficiency and stability of current transmission.

[0016] Optionally, the length of the conductive column in the positioning groove is smaller than the depth of the positioning groove.

[0017] By adopting the above technical solution, physical isolation from the external environment is achieved. This isolation reduces the chance of people directly contacting the conductive poles, thereby reducing the risk of electric shock.

[0018] Optionally, the second conductor includes a third conductive part, a fourth conductive part and a connecting part; the third conductive part, the fourth conductive part and the connecting part are distributed from top to bottom and are in a Z shape; the conductive column is located on the bottom surface of the third conductive part; the output port is provided on the side end surfaces of the third conductive part and the fourth conductive part away from the conductive column.

[0019] By adopting the above technical solution, on the one hand, it is helpful to save space, making the entire second conductor structure more compact and convenient for installation and use in a limited space; on the other hand, multiple output ports allow users to make multiple connections on the same conductor, reducing the number of additional conductors or connectors added due to wiring needs, simplifying the wiring process, and reducing wiring complexity.

[0020] A signal terminal assembly structure, comprising a plurality of the above-mentioned signal terminals arranged side by side, a first cover plate and a second cover plate; the first housing comprises a first main housing, one side of the first main housing is provided with a first placement groove, one side of the first placement groove is opened to form a first installation opening, the first conductor is installed in the first placement groove through the first installation opening, the first main housing adjacent to the first main housing closes the first installation opening, and the first placement groove of the first main housing at the most side is closed by the first cover plate;

[0021] The second shell includes a second main shell; a second mounting groove is provided on one side of the second main shell, one side of the second mounting groove is opened to form a second mounting opening, the second conductor is installed in the second mounting groove through the second mounting opening, and the second main shell adjacent to the second main shell closes the second mounting opening; the second mounting groove of the second main shell at the outermost side is closed by the second cover plate.

[0022] By adopting the above technical solution, it can be flexibly combined according to actual conditions to improve its adaptability; at the same time, part of the first cover plate and the second cover plate are omitted to save costs and reduce the overall length of the signal terminal assembly structure.

[0023] Optionally, a guide rail is also included; a slide groove adapted to the guide rail is provided at the bottom of the first shell.

[0024] By adopting the above technical solution, the signal wiring terminal is connected to the guide rail through the slide groove of the first housing, and is convenient for assembly and disassembly.

[0025] Optionally, a plurality of positioning holes are arranged at intervals on the guide rail along its extension direction; and a positioning block matched with the positioning holes is arranged at the bottom of the first shell.

[0026] By adopting the above technical solution, the cooperation between the positioning block and the positioning hole makes the relative position of the assembled signal terminal assembly structure and the guide rail more stable.

[0027] Optionally, adjacent second main shells are connected by snap-fitting.

[0028] By adopting the above technical solution, adjacent signal wiring terminals are connected by snap-fitting, and the signal wiring terminals are easy to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is an exploded schematic diagram of the signal terminal of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a first conductor of a signal terminal of the present invention;

[0031] Figure 3 It is a schematic structural diagram of the second conductor of the signal terminal of the present invention.

[0032] Figure 4 A schematic diagram of the exploded structure of another plug-in terminal of the present invention.

[0033] Figure 5 It is a schematic structural diagram of another second conductor of the present invention.

[0034] Figure 6 It is a structural schematic diagram of the signal wiring terminal assembly structure of the present invention.

[0035] Figure 7 It is a schematic structural diagram of the short-circuit bar of the present invention.

[0036] Figure 8 It is a schematic structural diagram of the test strip of the present invention.

[0037] Description of reference numerals:

[0038] 1. base; 11. first housing; 111. first main housing; 112. first cover plate; 113. first slot; 114. first placement slot; 115. short-circuit positioning slot; 1151. fourth slot; 116. test positioning slot; 1161. fifth slot; 1160. positioning slot; 117. mounting portion; 1171. second slot; 118. slide; 119. positioning block; 12. first conductor; 121. input port; 122. short-circuit interface; 123. test port; 124. plug interface; 125. first conductive portion; 126. second conductive portion;

[0039] 2. plug-in terminal; 21. second housing; 211. second main housing; 212. second cover plate; 213. positioning slot; 214. connection buckle; 215. connection slot; 216. third slot hole; 217. second placement slot; 22. second conductor; 221. conductive column; 222. output port; 224. third conductive part; 225. fourth conductive part; 226. connection part; 23. identification plate;

[0040] 3. Guide rail; 31. Positioning hole;

[0041] 4. short-circuit bar; 41. short-circuit portion; 42. positioning portion; 43. short-circuit connecting bolt;

[0042] 5. Test socket strip; 51. Test plug; 52. Test positioning part; 53. Test conductive column; 54. Connecting plug block; 55. Connecting slot; 56. Positioning plug block. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-8 The present invention is described in further detail.

[0044] Embodiment 1: A signal terminal is disclosed, such as Figure 1 and Figure 5 As shown, it includes a base 1 and a plug-in terminal 2. The base 1 includes a first shell 11 and a first conductor 12 installed in the first shell 11. The first conductor 12 is provided with an input port 121 and a plug-in port 124 for connecting to a cable; the plug-in terminal 2 is connected to the first conductor 12 through the plug-in port 124. The first shell 11 includes a first main shell 111 and a first cover plate 112; a first placement groove 114 is formed on one side of the first main shell 111, and one side of the first placement groove 114 is opened to form a first installation port. The first conductor 12 is installed in the first placement groove 114 through the first installation port, and the first cover plate 112 is used to close the first placement groove 114, thereby protecting the first conductor 12.

[0045] With such a structural design, the signal terminal adopts a separate structure design of the plug-in terminal 2 and the base 1, which can realize the quick plug-in and pull-out of the plug-in terminal 2 and the base 1. On the one hand, the close connection between the plug-in terminal 2 and the base 1 can effectively avoid the problems of signal interference and increased resistance, thereby ensuring the accurate transmission of the signal and the stable output of the voltage; on the other hand, in the on-site wiring link, it is only necessary to quickly insert the plug-in terminal 2 into the base 1 to easily realize the instant connection of the electrical system, which not only avoids the complex and time-consuming rewiring work on site, but also significantly reduces the risk of operational errors, greatly improves the installation efficiency and the convenience of later maintenance, and at the same time, effectively reduces the manpower and time costs.

[0046] like Figure 1As shown, the plug-in terminal 2 includes a second housing 21 detachably connected to the first housing 11 and a second conductor 22 installed in the second housing 21. The second conductor 22 is provided with a conductive column 221 adapted to the plug-in port 124 and an output port 222 for connecting an external device. The second housing 21 includes a second main housing 211 and a second cover plate 212; a second placement groove 217 is formed on one side of the second main housing 211, and one side of the second placement groove 217 is opened to form a second installation port. The second conductor 22 is installed in the second placement groove 217 through the second installation port, and the second cover plate 212 is used to close the second placement groove 217, thereby protecting the second conductor 22. With such a structural design, the plug-in terminal 2 and the base 1 can be separated to achieve quick plug-in and pull-out between the plug-in terminal 2 and the base 1. On the one hand, the output port 222 of the plug-in terminal 2 is adapted to the wiring schemes of different protection devices. Different protection devices can be adapted and connected to the same base 1 through the plug-in terminal 2, thereby improving the flexibility and scalability of the signal wiring terminal. On the other hand, the protection device can be pre-connected to the plug-in terminal 2, thereby effectively avoiding the complex and time-consuming rewiring work on site, greatly improving the work efficiency of installation and maintenance, and reducing manpower and time costs.

[0047] In order to facilitate the subsequent route direction, Figure 1 and Figure 2 As shown, the input port 121 is located on the side surface of the first conductor 12, and the plug port 124 is located on the top surface of the first conductor 12; the first housing 11 is provided with a first slot 113 that matches the input port 121 and a second slot 1171 that matches the plug port 124. Figure 1 and Figure 4 As shown, the output port 222 is located on the side end surface of the second conductor 22 away from the conductive pillar 221 , and the second shell 21 is provided with a third slot 216 that matches the output port 222 .

[0048] like Figure 2 As shown, the first conductive body 12 includes a first conductive portion 125 arranged horizontally and a second conductive portion 126 arranged vertically; the first conductive portion 125 and the second conductive portion 126 form an L shape; the input port 121 is located on the side end surface of the first conductive portion 125 away from the second conductive portion 126; the plug port 124 is located on the top surface of the second conductive portion 126; Figure 1 As shown, a mounting portion 117 for accommodating the second conductive portion 126 is disposed on the first housing 11 ; the second slot 1171 is located on the top surface of the mounting portion 117 .

[0049] like Figure 1As shown, in order to facilitate the connection with the second shell 21, a positioning groove 213 for the installation portion 117 to be inserted is formed on the bottom surface of the second shell 21, so that when the second shell 21 is connected to the first shell 11, the installation portion 117 of the first shell 11 is inserted into the positioning groove 213 of the second shell 21; the conductive column 221 is located in the positioning groove 213 and the length of the conductive column 221 in the positioning groove 213 is less than the depth of the positioning groove 213. In this way, on the one hand, the conductive column 221 will not exceed the positioning groove 213, and is physically isolated from the external environment. This isolation reduces the chance of direct contact between the conductive column 221 and the risk of electric shock; on the other hand, the conductive column 221 is tightly connected with the installation portion 117 through the positioning groove 213, so as to achieve a stable connection with the plug port 124. This precise matching not only ensures the effective contact between the conductive column 221 and the plug port 124, but also greatly reduces the electrical impedance, and improves the efficiency and stability of current transmission.

[0050] In other embodiments, a logo plate 23 is disposed on the top of the first housing 11 and / or the second housing 21. Figure 1 As shown, the identification plate 23 is detachably connected to the first shell 11 and the second shell 21 by snaps. The identification plate 23 helps to identify the correct wiring position, especially in large electrical systems or complex circuit boards, and the signal terminal can reduce the risk of incorrect connection.

[0051] Embodiment 2: Embodiment 2 differs from Embodiment 1 in that: Figure 2 As shown, the first conductor 12 also has a short-circuit interface 122; the short-circuit interface 122 is located on the top surface of the first conductive portion 125; Figure 1 As shown, a fourth slot 1151 matching with the short-circuit interface 122 is disposed on the top surface of the first housing 11 .

[0052] Through the short-circuit interface 122, the short-circuit operation of the base 1 of different signal wiring terminals can be quickly realized, which significantly shortens the operation time and improves work efficiency when circuit testing, debugging or temporary connection is required.

[0053] Embodiment 3: Embodiment 3 differs from Embodiment 1 in that: Figure 2 As shown, the first conductive body 12 also has a test port 123; the test port 123 is located on the top surface of the first conductive portion 125; Figure 1 As shown, a fifth slot 1161 matching with the test port 123 is disposed on the top surface of the first housing 11 .

[0054] The setting of the test port allows users to easily implement test connections without complicated operating steps, which greatly improves work efficiency and ease of operation and enriches the functionality and practicality of the signal terminal blocks.

[0055] Embodiment 4: Embodiment 4 differs from Embodiment 1 in that: Figure 4 and Figure 5 As shown, the second conductor 22 includes a third conductive part 224, a fourth conductive part 225 and a connecting part 226; the third conductive part 224, the fourth conductive part 225 and the connecting part 226 are distributed from top to bottom and are in a Z shape; the conductive column 221 is located on the bottom surface of the third conductive part 224; the side end surfaces of the third conductive part 224 and the fourth conductive part 225 away from the conductive column 221 are both provided with an output port 222; the second shell 21 is stepped and two different side end surfaces are respectively provided with third slots 216 that cooperate with the output port 222.

[0056] On the one hand, this helps save space, making the entire second conductor 22 more compact and convenient for installation and use in a limited space; on the other hand, multiple output ports allow users to make multiple connections on the same conductor, reducing the number of additional conductors or connectors added due to wiring needs, simplifying the wiring process, and reducing wiring complexity.

[0057] Embodiment 5: A signal terminal assembly structure is disclosed, such as Figure 6 As shown, it includes a guide rail 3 and a plurality of signal wiring terminals of any one of Embodiments 1 to 4 connected to the guide rail 3; all the signal wiring terminals are arranged side by side.

[0058] In other embodiments, in order to reduce the number of parts and the overall length, a better solution may be adopted, such as Figure 6 As shown, the signal terminal at the outermost side has a first cover plate 112 and a second cover plate 212, and the first cover plate 112 and the second cover plate 212 can be omitted for the remaining signal terminals, that is, the signal terminal at the outermost side uses the first cover plate 112 to close the first mounting groove 114 of the first main shell 111, and the second cover plate 212 to close the second mounting groove 217 of the second main shell 211, and the other signal terminals use the adjacent first main shell 111 to close the first mounting groove 114 of the first main shell 111, and the adjacent second main shell 211 to close the second mounting groove 217 of the second main shell 211.

[0059] like Figure 1 and Figure 6 As shown, a pair of connecting buckles 214 distributed up and down are formed on the second cover plate 212; and connecting slots 215 cooperating with the connecting buckles 214 are formed on the upper and lower end surfaces of the second main shell 211. Figure 1 As shown, a complete signal terminal is connected to the connection slot 215 of the second main shell 211 through the connection buckle 214 of the second cover plate 212. Figure 6As shown, when multiple signal terminals are combined, all second main shells 211 between the second cover plate 212 and the second main shell 211 farthest from it are also formed with a pair of connecting buckles 214 distributed up and down; adjacent second main shells 211 are connected by connecting buckles 214 and connecting slots 215.

[0060] like Figure 1 and Figure 6 The bottom of the first housing 11 is provided with a slide groove 118 adapted to the guide rail 3. The signal terminals are arranged on the guide rail 3 through the slide groove 118. On the one hand, the signal terminals are easy to assemble; on the other hand, the signal terminals adopt a modular design. Under the action of the slide groove 118 and the guide rail 3, the number of signal terminals can be conveniently adjusted according to different types and specifications of protection devices, so that the signal terminal combination structure takes into account various types of protection devices, thereby improving its versatility and flexibility. In order to improve the connection stability between the guide rail 3 and the combined signal terminal combination structure, a plurality of positioning holes 31 are arranged at intervals along the extension direction of the guide rail 3; a positioning block 119 adapted to the positioning hole 31 is arranged at the bottom of the first housing 11.

[0061] like Figure 6 As shown, when the base 1 of different signal terminals needs to be short-circuited, a shorting bar 4 can be used; Figure 6 and Figure 7 As shown, the short-circuit bar 4 includes a plurality of short-circuit portions 41 connected in sequence along the arrangement direction of the signal terminals on the guide rail, and the short-circuit portion 41 includes a positioning portion 42 and a short-circuit connection bolt 43; the short-circuit connection bolt 43 passes through the positioning portion 42 and is adapted to the short-circuit interface 122; FIG. Figure 1 As shown, the first housing 11 is provided with a short-circuit positioning groove 115 that cooperates with the positioning portion 42. In order to make the position of the short-circuit bar 4 more stable when short-circuiting, the bottom of the first conductor 12 is directly opposite to the fixing nut of the short-circuit interface 122, and the short-circuit connection bolt 43 passes through the first conductor 12 through the short-circuit interface 122 and is threadedly connected to the fixing nut. It should be noted that the number and spacing of the short-circuit portions 41 can be adjusted according to the wiring requirements of the protection device.

[0062] like Figure 6 As shown, when testing is required, the test strip 5 can be used; Figure 8 As shown, the test strip 5 includes a plurality of test plugs 51 connected in sequence along the arrangement direction of the signal wiring terminals on the guide rail; the test plugs 51 include a test positioning portion 52 and a test conductive column 53; the test conductive column 53 is adapted to the test port 123. The two opposite side end surfaces of the test positioning portion 52 are respectively formed with a connection plug block 54 and a connection slot 55, and the other side end surface is formed with a positioning plug block 56; adjacent test plugs 51 are connected through the connection plug block 54 and the connection slot 55; refer to Figure 1The first housing 11 is provided with a test positioning groove 116 that matches the test positioning portion 52; a positioning slot 1160 that matches the positioning plug 56 is formed on one side wall of the test positioning groove 116. It should be noted that the number and spacing of the test plugs 51 can be adjusted according to the wiring requirements of the protection device.

[0063] Through the short-circuit strip 4 and the test strip 5, the signal wiring terminal can easily realize the short-circuit interface between the signal wiring terminals and the bridging of the test port during the on-site operation and maintenance process. It provides great convenience for on-site operation and maintenance personnel, allowing the signal wiring terminal to respond quickly to various short-circuit and bridging requirements, thereby significantly improving work efficiency and circuit connection reliability.

[0064] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A signal terminal, characterized in that: include: The base (1) comprises a first shell (11) and a first conductor (12); the first conductor (12) is installed in the first shell (11); the first conductor (12) has an input port (121) and a plug port (124); the input port (121) is used to connect to a cable; A plug-in terminal (2) is detachably mounted on the base (1), comprising a second shell (21) and a second conductor (22); the second conductor (22) is mounted in the second shell (21); the second conductor (22) has a conductive column (221) and at least one output port (222); the conductive column (221) is compatible with the plug-in port (124); and the output port (222) is used for connecting to an external device.

2. A signal terminal according to claim 1, characterized in that: The first conductor (12) has a short-circuit interface (122); the short-circuit interface (122) is used for short-circuiting a circuit.

3. A signal terminal according to claim 1, characterized in that: The first conductor (12) has a test port (123); the test port (123) is used for testing connection.

4. The signal terminal according to claim 1, characterized in that: The first conductor (12) is L-shaped and comprises a horizontal first conductive part (125) and a vertical second conductive part (126); the plug-in port (124) is located on the top surface of the second conductive part (126); a mounting part (117) for accommodating the second conductive part (126) is formed on the top of the first shell (11); a positioning groove (213) for inserting the mounting part (117) is formed on the bottom surface of the second shell (21); and the conductive column (221) is located in the positioning groove (213).

5. A signal terminal according to claim 4, characterized in that: The length of the conductive column (221) in the positioning groove (213) is smaller than the depth of the positioning groove (213).

6. The signal terminal according to claim 1, characterized in that: The second conductor (22) comprises a third conductive part (224), a fourth conductive part (225) and a connecting part (226); the third conductive part (224), the fourth conductive part (225) and the connecting part (226) are distributed from top to bottom and are in a Z-shape; the conductive column (221) is located on the bottom surface of the third conductive part (224); and the output port (222) is provided on the side end surfaces of the third conductive part (224) and the fourth conductive part (225) away from the conductive column (221).

7. A signal terminal assembly structure, characterized in that: The invention comprises a plurality of signal terminals as claimed in any one of claims 1 to 6, a first cover plate (112) and a second cover plate (212) arranged side by side; the first housing (11) comprises a first main housing (111), one side of the first main housing (111) is provided with a first placement groove (114), one side of the first placement groove (114) is opened to form a first installation opening, the first conductor (12) is installed in the first placement groove (114) through the first installation opening, the first main housing (111) adjacent to the first main housing (111) closes the first installation opening, and the first placement groove (114) of the first main housing (111) at the outermost side is closed by the first cover plate (112); The second shell (21) comprises a second main shell (211); a second mounting groove (217) is provided on one side of the second main shell (211); one side of the second mounting groove (217) is opened to form a second mounting opening; the second conductor (22) is mounted in the second mounting groove (217) through the second mounting opening; the second main shell (211) adjacent to the second main shell (211) closes the second mounting opening; the second mounting groove (217) of the second main shell (211) at the outermost side is closed by the second cover plate (212).

8. The signal terminal assembly structure according to claim 7, characterized in that: It also includes a guide rail (3); the bottom of the first shell (11) is provided with a slide groove (118) adapted to the guide rail (3).

9. The signal terminal assembly structure according to claim 8, characterized in that: The guide rail (3) is provided with a plurality of positioning holes (31) at intervals along its extension direction; and the bottom of the first housing (11) is provided with positioning blocks (119) adapted to the positioning holes (31).

10. The signal terminal assembly structure according to claim 7, characterized in that: Adjacent second main shells (211) are connected by snap-fitting.

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