Lightning protection branching cabinet

Abstract

The invention relates to the field of railway branching cabinets, in particular to a lightning protection branching cabinet. The lightning protection branching cabinet comprises a cabinet body and an installation plate located in the cabinet body, the installation plate comprises a first side wall face and a second side wall face which are oppositely arranged, the first side wall face is provided with a plurality of branching terminals, the second side wall face is provided with a plurality of surge protectors corresponding to the branching terminals in a one-to-one mode, and the surge protectors correspond to the branching terminals in a one-to-one mode. The mounting plate is provided with a plurality of communicating holes which are in one-to-one correspondence with the branching terminals, and wire outlets of the branching terminals are coupled with the surge protector through lightning protection cables penetrating through the communicating holes.

Description

Technical Field

[0001] This invention relates to the field of railway junction boxes, and in particular to a lightning protection junction box. Background Technology

[0002] In locations with a large number of signal cables, such as railways, it is often necessary to branch these cables. Specifically, branching involves connecting each core of the signal cable to a branch terminal, which then branches the cables and connects them to surge protectors for lightning protection. To achieve this, a lightning protection branch cabinet is typically placed inside the railway signal equipment room. The main function of the lightning protection branch cabinet is to transfer and distribute indoor and outdoor signal cables, thereby reducing or lowering the intensity of lightning electromagnetic pulses conducted into the signal equipment room via outdoor signal cables. The lightning protection branch cabinet consists of a cabinet, branch terminals, surge protectors, grounding busbars, and related accessories.

[0003] Since the branching operation of signal cables involves the laying of cables before and after the branching operation within the cabinet, and lightning protection also involves the laying of cables between the branching terminals and surge protectors, as well as grounding cables, there are two types of cables in the cabinet: branching cables and lightning protection cables. Therefore, there are a large number of cables in the cabinet, which may cause mutual interference between the cables in the cabinet. This makes it inconvenient for the operator to perform separate operations on the cables related to the branching terminals or surge protectors. Summary of the Invention

[0004] On the one hand, the present invention provides a surge protection distribution cabinet that can separate the cables related to the distribution terminals and the cables related to the surge protectors, thereby facilitating cable operation within the cabinet.

[0005] The lightning protection distribution cabinet provided by the present invention includes a cabinet body and a mounting plate located inside the cabinet body. The mounting plate includes a first side wall and a second side wall arranged opposite to each other. The first side wall is provided with a plurality of distribution terminals, and the second side wall is provided with a plurality of surge protectors corresponding to the distribution terminals. The mounting plate has a plurality of connecting holes corresponding to the distribution terminals. The outlet of the distribution terminal is coupled to the surge protector through a lightning protection cable passing through the connecting hole.

[0006] Furthermore, the mounting plate has multiple regularly arranged setting areas, and each setting area is provided with multiple branch terminals and surge protectors.

[0007] Furthermore, multiple setting areas are arranged along a first direction, and multiple branch terminals in each setting area are arranged regularly on the first side wall in a direction perpendicular to the first direction. Multiple surge protectors in each setting area are arranged regularly on the second side wall in a direction perpendicular to the first direction. Along the first direction, two wire groove structures are spaced apart on the first side wall of each setting area. The branch terminal is located between the two wire groove structures, and the connecting hole is located between the outlet and one of the wire groove structures.

[0008] Furthermore, a sealing ring is provided inside the connecting hole.

[0009] Furthermore, the cabinet has a first cabinet door and a second cabinet door arranged opposite to each other, with the first cabinet door facing the first side wall and the second cabinet door facing the second side wall.

[0010] Furthermore, the cable tray structure includes a tray wall for enclosing and forming a cable routing channel, and multiple cable insertion holes are spaced apart on the tray wall near the cable outlet.

[0011] Furthermore, multiple wire-passing openings are spaced apart on the groove wall near the wire inlet of the branch terminal.

[0012] Furthermore, the cabinet is also equipped with a grounding bar and multiple collection bars. The grounding bar extends along a first direction, and the collection bars correspond one-to-one with the setting area. One end of the collection bar forms a first connection end, and the other end forms multiple second connection ends. The second connection ends are connected one-to-one with the surge protectors in the corresponding setting area, and the first connection ends are connected to the grounding bar.

[0013] Furthermore, the grounding busbar is located inside the cabinet near the second side wall.

[0014] Furthermore, the surge protector includes a switching element and a processing module for controlling the switching element according to the state of the surge protector. The switching elements of multiple surge protectors are connected in series to a signal circuit, which includes a power supply and an indicator.

[0015] Beneficial effects

[0016] In this solution, the branch terminals and surge protectors are separated by a mounting plate. Their respective related cables, such as railway signal cables and grounding cables, are also arranged in corresponding areas on both sides of the mounting plate. The lightning protection cable extending from one of the branch terminal outlets extends into the second side wall through a connecting hole opened at the corresponding position on the mounting plate and connects to the corresponding surge protector on that side, thereby achieving lightning protection for the railway signal cables passing through the branch terminal. In this way, this solution achieves the distinction between the branch and lightning protection functional areas within the lightning protection distribution cabinet, ensuring that there is a separation between railway signal cables and grounding cables. This makes the different cables arranged in each area simple and easy to distinguish, facilitating separate wiring operations during the assembly of the lightning protection distribution cabinet, and allowing for separate area operations as needed during daily maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the lightning protection distribution cabinet provided in Embodiments 1 to 3 of the present invention, in the direction of the first side wall.

[0019] Figure 2 This is a schematic diagram of the overall structure of the lightning protection distribution cabinet in the direction of the second side wall provided in Embodiments 1 to 3 of the present invention;

[0020] Figure 3 These are schematic diagrams illustrating the structure of the branch terminal and the mounting plate in accordance with Embodiments 1 to 3 of the present invention.

[0021] Figure 4 These are schematic diagrams illustrating the structure of the surge protector and mounting plate provided in Embodiments 1 to 3 of the present invention.

[0022] Figure 5 These are schematic diagrams of the groove structure provided in Embodiments 1 to 3 of the present invention;

[0023] Figure 6 These are circuit diagrams of the signal circuits provided in Embodiments 2 and 3 of the present invention;

[0024] Figure 7 This is a circuit diagram showing the surge protector and signal circuit provided in Embodiments 2 and 3 of the present invention.

[0025] Reference numerals: 1-Cabinet; 2-Mounting plate; 3-First side wall; 4-Second side wall; 5-Branch terminal; 6-Connecting hole; 7-Cable trough structure; 8-Surge protector; 9-Buffer; 10-Grounding busbar; 11-First connection terminal; 12-Way routing channel; 13-Trough wall; 14-Way opening; 15-Signal circuit; 16-Indicator; 17-Power supply; 18-Thermal trip assembly; 19-Lightning protection element; 20-Processing module; 21-Switch element; a-First direction. Detailed Implementation

[0026] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example 1

[0028] A surge protection distribution cabinet includes a cabinet body 1 and a mounting plate 2 located inside the cabinet body 1. The mounting plate 2 includes a first side wall 3 and a second side wall 4 arranged opposite to each other. The first side wall 3 is provided with a plurality of branch terminals 5, and the second side wall 4 is provided with a plurality of surge protectors 8 corresponding to the branch terminals 5. The mounting plate 2 has a plurality of connecting holes 6 corresponding to the branch terminals 5. The outlet of the branch terminals 5 is coupled to the surge protector 8 through surge protection cables passing through the connecting holes 6.

[0029] The mounting plate 2 of the lightning protection distribution cabinet is fixed inside the cabinet 1 by means of screws and brackets. The first side wall 3 and the second side wall 4 on both sides of the mounting plate 2 form two mating surfaces. In this solution, the space inside the cabinet 1 is divided into two parts by the mounting plate 2. The space on the first side wall 3 is used to realize the branching of railway signal cables, including the arrangement of railway signal cables before and after the branching and the arrangement of branching terminals 5, etc. The space on the second side wall 4 is used to realize the lightning protection function, including the arrangement of surge protectors 8 and grounding cables, etc.

[0030] In this solution, the branch terminal 5 and surge protector 8 are separated by the mounting plate 2. Their respective related cables, such as railway signal cables and grounding cables, are also arranged in corresponding areas on both sides of the mounting plate 2. The lightning protection cable extending from one of the outlets of the branch terminal 5 extends into the second side wall 4 through the connecting hole 6 opened at the corresponding position on the mounting plate 2 and connects to the corresponding surge protector 8 on that side, thereby realizing lightning protection for the railway signal cable passing through the branch terminal 5. In the above way, this solution realizes the distinction between the branching and lightning protection functional areas in the lightning protection distribution cabinet. The branch terminal 5, which plays the role of branching, and the railway signal cable that cooperates with it are arranged on the first side wall 3, while the surge protector 8, which plays the role of lightning protection, and the grounding cable are arranged on the second side wall 4, ensuring that there is a separation between the railway signal cable and the grounding cable. This makes the different cables arranged in each area simple and easy to distinguish, and it is easy to perform wiring operations separately during the assembly of the lightning protection distribution cabinet. In addition, during daily maintenance, separate area operations can also be performed as needed.

[0031] In one alternative embodiment, the mounting plate 2 has multiple regularly arranged setting areas, each setting area being provided with multiple branch terminals 5 and surge protectors 8.

[0032] Mounting plate 2 consists of multiple setting areas, each of which includes multiple branch terminals 5 and surge protectors 8, thus forming a relatively independent lightning protection branch module. In the lightning protection branching module, the setting area is part of the mounting plate 2. Therefore, the space on one side of the first side wall 3 of the setting area is used to realize the branching of railway signal cables, and the space on one side of the second side wall 4 is used to realize the lightning protection function. The branching terminal 5 and the railway signal cable that cooperate with it are arranged on the first side wall 3, and the surge protector 8 and the grounding cable that realize the lightning protection function are arranged on the second side wall 4. The lightning protection cable extending from one of the outlets of the branching terminal 5 extends into the second side wall 4 through the connecting hole 6 opened at the corresponding position on the mounting plate 2 and is connected to the corresponding surge protector 8 on that side. That is, each lightning protection branching module has complete branching and lightning protection functions for railway signal cables. The number of setting areas can be determined according to the number of branching lines designed. When there are many cores of railway signal cables, the mounting plate 2 with a larger design size is used to divide into more setting areas, thereby using more lightning protection branching modules to cooperate in branching and lightning protection.

[0033] In one optional embodiment, multiple setting areas are arranged along a first direction a, and multiple branch terminals 5 in each setting area are arranged regularly on the first side wall 3 in a direction perpendicular to the first direction a. Multiple surge protectors 8 in each setting area are arranged regularly on the second side wall 4 in a direction perpendicular to the first direction a. Along the first direction a, two wire groove structures 7 are spaced apart on the first side wall 3 in each setting area, the branch terminals 5 are located between the two wire groove structures 7, and the connecting hole 6 is located between the outlet and one wire groove structure 7.

[0034] The cabinet 1 of the lightning protection distribution cabinet is arranged in the first direction a from top to bottom. The mounting plate 2 extends along the first direction a and is divided into multiple setting areas arranged from top to bottom inside the cabinet 1, thereby forming multiple lightning protection distribution modules.

[0035] Each lightning protection branch module, i.e., each branch terminal 5 within a set area, is mounted on the first side wall 3 of the mounting plate 2 of that set area. Specifically, they are arranged horizontally against each other to form a branch line, perpendicular to the first direction a. Each lightning protection branch module, i.e., each surge protector 8 within a set area, is also mounted on the second side wall 4 of the mounting plate 2 of that set area. Specifically, they are arranged horizontally against each other, perpendicular to the first direction a. Since the branch terminals 5 and surge protectors 8 correspond one-to-one to form a branch lightning protection group, and the relative positions between the branch terminals 5 and surge protectors 8 in each branch lightning protection group are fixed, the lightning protection cables between the branch terminals 5 and surge protectors 8 in each set area are arranged in a consistent manner, which facilitates wiring operations and cable identification during maintenance.

[0036] Along the first direction a, two wire trough structures 7 are spaced apart on the first side wall 3 of each setting area. The branch terminal 5 has an inlet and an outlet. One wire trough structure 7 is close to the inlet, and the other wire trough structure 7 is close to the outlet. The railway signal cable that is not connected to the branch terminal 5 for branching operation is laid in the wire trough structure 7 close to the inlet and extends to the corresponding branch terminal 5, connecting the wire core to the inlet. The cable that has undergone branching operation extends out from the outlet and is laid in the wire trough structure 7 close to the outlet. A connecting hole 6 is opened on the mounting plate 2 near the outlet of each branch terminal 5. The connecting hole 6 is located between the outlet and the cable tray structure 7 near the outlet. The lightning protection cable extending from one of the outlets of the branch terminal 5 passes through the connecting hole 6 and enters the second side wall 4 of the mounting plate 2, and then connects to the corresponding surge protector 8. The lightning protection cable is connected in parallel with the cables extending from the other outlets of the branch terminal 5, so that the surge protector 8 provides lightning protection for the cable of the branch terminal 5.

[0037] In one alternative embodiment, a sealing ring is provided inside the connecting hole 6.

[0038] The connecting hole 6 is a round hole, and the sealing ring is embedded in the connecting hole 6. Its function is to prevent the edge of the connecting hole 6 from cutting the cable.

[0039] In one alternative embodiment, the cabinet 1 has a first cabinet door and a second cabinet door arranged opposite to each other, the first cabinet door facing the first side wall 3 and the second cabinet door facing the second side wall 4.

[0040] Mounting plate 2 divides the interior space of cabinet 1 into two parts. The space on one side of the first side wall 3 is used for branching railway signal cables, and the space on one side of the second side wall 4 is used for lightning protection. The two cabinet doors of cabinet 1 correspond to the branching space for railway signal cables and the lightning protection space, respectively. Specifically, the first cabinet door faces the first side wall 3. The operator can open the first cabinet door to perform branching operations for railway signal cables separately, and can open the second cabinet door to perform operations related to the lightning protection function, such as operating the surge protector 8 and the grounding cable.

[0041] In one alternative embodiment, the cable tray structure 7 includes a tray wall 13 for enclosing and forming a cable routing channel 12, with a plurality of cable through holes 14 spaced apart on the tray wall 13 near the cable outlet. A plurality of cable through holes 14 are also spaced apart on the tray wall 13 near the cable inlet of the branch terminal 5.

[0042] The cable tray structure 7 is a U-shaped channel formed by bending a plate. The two opposite plates form the channel walls 13 on both sides of the channel. Multiple wire-passing openings 14 are opened on the channel walls 13 along the extension direction of the cable tray structure 7, thereby ensuring that the cable tray structures 7 on both sides of the branch terminal 5 have wire-passing openings 14 facing the branch terminal 5. The core of the railway signal cable that is not connected to the branch terminal 5 for branching operation is laid in the cable tray structure 7 near the inlet and passes through the wire-passing openings 14 facing the inlet to exit the cable tray structure 7 and connect to the inlet. The cable that has undergone branching operation passes through the wire-passing openings 14 facing the outlet and then enters the cable tray structure 7 laid near the outlet.

[0043] In one optional embodiment, the cabinet 1 is further provided with a grounding busbar 10 and a plurality of collection busbars 9. The grounding busbar 10 extends along the first direction a, and the collection busbars 9 correspond one-to-one with the setting area. One end of the collection busbar 9 forms a first connection end 11, and the other end forms a plurality of second connection ends. The second connection ends are connected one-to-one with the surge protectors 8 in the corresponding setting area, and the first connection end 11 is connected to the grounding busbar 10.

[0044] The busbar 9 acts as a grounding cable. Each busbar 9 includes a copper sheet and a fixed wire at one end of the copper sheet. Multiple second connection terminals are formed on the copper busbar. The ends of the second connection terminals can extend into the grounding port of the surge protector 8, thereby connecting it to the lightning protection circuit. The protrusions on each copper busbar correspond one-to-one with the surge protectors 8 in the installation area, so that all surge protectors 8 in the installation area are grounded through the copper busbar, avoiding the problem of multiple and messy cables caused by each surge protector 8 being grounded separately through a grounding cable.

[0045] The grounding busbar 10 extends along the first direction a inside the cabinet 1 and is connected to the grounding grid outside the cabinet 1. Therefore, the grounding busbar 10 passes through each setting area on the mounting plate 2 in sequence. After the collection busbar 9 of each setting area is connected to the grounding port of each surge protector 8, it is connected to the grounding busbar 10 through a fixing wire. The two ends of the fixing wire are connected to the collection busbar 9 and the grounding busbar 10 respectively through screws.

[0046] In one alternative implementation, the grounding busbar 10 is located inside the cabinet 1 near the second side wall 4.

[0047] The cabinet 1 has two opposing side walls, as well as an upper and lower end wall. The enclosed cabinet 1 has two opposing openings, which respectively mate with the first cabinet door and the second cabinet door. To facilitate the operation of the surge protector 8 and the grounding cable related to the lightning protection function after opening the second cabinet door, the grounding busbar 10 in this solution is located close to one of the side walls of the cabinet 1. There are gaps between the mounting plate 2 and the inner wall surfaces of both side walls, thereby avoiding the grounding busbar 10 being located between the second cabinet door and the mounting plate 2, and especially avoiding the grounding busbar 10 being located between the second cabinet door and the area on the mounting plate 2 where the surge protector 8 is installed, thus reducing the impact of the grounding busbar 10 on the operator inside the cabinet 1.

[0048] Example 2

[0049] The surge protector 8 includes a switch element 21 and a processing module 20 for controlling the switch element 21 according to the state of the surge protector 8. The switch elements 21 of multiple surge protectors 8 are connected in series to a signal circuit 15, which includes a power supply 17 and an indicator 16.

[0050] The surge protector 8 includes a base and a module head, which are plugged into each other. The base is provided with a port that can be plugged into a grounding cable. The surge protection element 19 and the thermal trip assembly 18 in the module head can be connected to the base along with the module head, so that the surge protection element 19 is connected between the protected target circuit and the grounding grid.

[0051] The base or module head contains a corresponding circuit structure that converts thermal trip signals (such as displacement) and lightning strike signals (such as temperature changes) into electrical signals. These signals are then processed by the processing module 20 into digital signals for external monitoring of the surge protector 8's status. Since there are many surge protectors 8 corresponding to branch terminals 5 in this solution, to avoid requiring numerous signal cables for monitoring the status of these surge protectors 8, the processing module 20 controls the opening and closing of the switches 21 within the surge protectors 8. Multiple surge protectors 8 in the lightning protection distribution cabinet are connected in series to the signal circuit 15, thus connecting the switches 21 within the surge protectors 8 to the signal circuit 15. Therefore, multiple switches 21 are connected in series on the signal circuit 15. When a single surge protector 8 is in a normal state (i.e., no thermal trip or lightning strike occurs), the switch 21 remains closed. When a single surge protector 8 is in an abnormal state (i.e., a thermal trip or lightning strike occurs), the processing module 20 controls the switch 21 to open. Switching components 21, such as electromagnetic trip units, are used. The signal circuit 15 is powered by an external power supply 17. When all surge protectors 8 connected to the signal circuit 15 in the lightning protection distribution cabinet are in normal condition, the switching components 21 on the signal circuit 15 are all in a closed state. Therefore, the indicator 16 on the signal circuit 15, such as the indicator light, remains constantly lit. When any surge protector 8 connected to the signal circuit 15 in the lightning protection distribution cabinet experiences a thermal trip or lightning strike, the switching component 21 of that surge protector 8 is disconnected. Since there is a disconnected switching component 21 in the signal circuit 15, the signal circuit 15 is disconnected, and the indicator 16 on the signal circuit 15, such as the indicator light, is turned off. The overall status of the surge protectors 8 in the lightning protection distribution cabinet can be obtained from the status of the indicator light.

[0052] Example 3

[0053] The surge protection distribution cabinet includes multiple installation areas, each of which includes multiple branch terminals 5 and surge protectors 8, thus forming a relatively independent surge protection distribution module. Each surge protection distribution module corresponds to a signal circuit 15, meaning that the multiple surge protectors 8 of each surge protection distribution module are connected in series to the corresponding signal circuit 15, thereby connecting the switching elements 21 within these surge protectors 8 to the signal circuit 15. Therefore, there are multiple switching elements 21 connected in series on the signal circuit 15.

[0054] Within each lightning protection branch module, when all surge protectors 8 connected to the signal circuit 15 are in normal condition, the switches 21 on the signal circuit 15 are all in the closed state. Therefore, the indicators 16 on the signal circuit 15, such as indicator lights, remain constantly lit. When any surge protector 8 connected to the signal circuit 15 experiences thermal tripping or lightning strike, the switch 21 of that surge protector 8 is opened, and since there is an open switch 21 in the signal circuit 15, the signal circuit 15 is disconnected.

[0055] Each signal circuit 15 is equipped with an indicator 16. When any signal circuit 15 is disconnected, the indicator 16 corresponding to that signal circuit 15, such as an indicator light, will turn off. The surge protection distribution cabinet has an area for centralized management of the above-mentioned indicators 16 at the corresponding location, or the host computer of the surge protection distribution cabinet has an area for centralized management of the above-mentioned indicators 16. Multiple indicators 16 are arranged according to their positions or indicate the corresponding setting areas with text or numbers. The status of the surge protectors 8 in each setting area inside the surge protection distribution cabinet can be obtained from the external system through the status of the indicators 16. By having multiple indicators 16 correspond to multiple setting areas, the accuracy of the indicator 16 in displaying the status of the surge protectors 8 is improved, and it is also convenient for the operator to replace the surge protectors 8 in a specific setting area according to the indicators 16, reducing the number of surge protectors 8 that need to be checked.

[0056] It should be noted that any of the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, preceding, and next, etc., does not indicate any order. These words can be interpreted as names.

[0057] The above embodiments are only suitable for illustrating the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A lightning protection distribution cabinet, characterized in that, The device includes a cabinet (1) and a mounting plate (2) located inside the cabinet (1). The mounting plate (2) includes a first side wall (3) and a second side wall (4) arranged opposite to each other. The first side wall (3) is provided with a plurality of branch terminals (5). The second side wall (4) is provided with a plurality of surge protectors (8) corresponding to the branch terminals (5). The mounting plate (2) has a plurality of connecting holes (6) corresponding to the branch terminals (5). The outlet of the branch terminal (5) is coupled to the surge protector (8) through a lightning protection cable passing through the connecting hole (6).

2. The lightning protection distribution cabinet according to claim 1, characterized in that, The mounting plate (2) has multiple regularly arranged setting areas, and each setting area is provided with multiple branch terminals (5) and surge protectors (8).

3. The lightning protection distribution cabinet according to claim 2, characterized in that, Multiple setting areas are arranged along a first direction (a), and multiple branch terminals (5) in each setting area are arranged regularly on the first side wall (3) in a direction perpendicular to the first direction (a). Multiple surge protectors (8) in each setting area are arranged regularly on the second side wall (4) in a direction perpendicular to the first direction (a). Along the first direction (a), two wire groove structures (7) are spaced apart on the first side wall (3) of each setting area. The branch terminal (5) is located between the two wire groove structures (7), and the connecting hole (6) is located between the outlet and one of the wire groove structures (7).

4. The lightning protection distribution cabinet according to claim 1, characterized in that, A sealing ring is provided inside the connecting hole (6).

5. The lightning protection distribution cabinet according to claim 1, characterized in that, The cabinet (1) has a first cabinet door and a second cabinet door arranged opposite to each other, the first cabinet door facing the first side wall (3) and the second cabinet door facing the second side wall (4).

6. The lightning protection distribution cabinet according to claim 3, characterized in that, The cable tray structure (7) includes a tray wall (13) for enclosing and forming a cable routing channel (12), and a plurality of cable insertion holes (14) are spaced apart on the tray wall (13) near the cable outlet.

7. The lightning protection distribution cabinet according to claim 6, characterized in that, Multiple wire-passing holes (14) are provided at intervals on the groove wall (13) near the wire inlet of the branch terminal (5).

8. The lightning protection distribution cabinet according to claim 3, characterized in that, The cabinet (1) is also provided with a grounding bar (10) and a plurality of collection bars (9). The grounding bar (10) extends along the first direction (a). The collection bars (9) correspond one-to-one with the setting area. One end of the collection bar (9) forms a first connection end (11), and the other end forms a plurality of second connection ends. The second connection ends are connected one-to-one with the surge protectors (8) in the corresponding setting area. The first connection end (11) is connected to the grounding bar (10).

9. The lightning protection distribution cabinet according to claim 8, characterized in that, The grounding bar (10) is located inside the cabinet (1) near the second side wall (4).

10. The lightning protection distribution cabinet according to any one of claims 1-9, characterized in that, The surge protector (8) includes a switch (21) and a processing module (20) for controlling the switch (21) according to the state of the surge protector (8). The switches (21) of multiple surge protectors (8) are connected in series to a signal circuit (15). The signal circuit (15) includes a power supply (17) and an indicator (16).

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