Lightning protection branching module and lightning protection branching cabinet

Abstract

The utility model relates to the field of railway branching cabinets, in particular to a lightning protection branching module and a lightning protection branching cabinet. The lightning protection branching module provided by the utility model comprises a branching terminal and a surge protector, the branching terminal and the surge protector are respectively arranged on two side wall surfaces of a mounting plate and are respectively detachably connected with the mounting plate, the mounting plate is provided with a communication hole, and the communication hole is communicated with the branching terminal and the surge protector. A wire outlet of the branching terminal is coupled with the surge protector through a lightning protection cable penetrating through the communicating hole, and the mounting plate is provided with a connecting part capable of being connected with the other mounting plate.

Description

Technical Field

[0001] This utility model relates to the field of railway distribution cabinets, and in particular to a lightning protection distribution module and a lightning protection distribution cabinet. 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] Existing surge protection distribution cabinets are arranged in the form of cabinets in indoor areas. The cabinet and the components inside the cabinet form a relatively independent integrated unit. The number of distribution terminals inside the cabinet is limited. If the number of wire cores that need to be distributed is small, there will be idle distribution terminals inside the cabinet. If the number of wire cores that need to be distributed is large, exceeding the number of distribution terminals of a surge protection distribution cabinet, another surge protection distribution cabinet needs to be added to accommodate the excess wire cores. The newly added surge protection distribution cabinet will still have idle distribution terminals. Therefore, the existing surge protection distribution cabinets have poor adaptability to the number of wire cores, and in most cases, there are idle distribution terminals. Utility Model Content

[0004] On the one hand, this utility model provides a lightning protection branch module, which can easily add or remove branch terminals and surge protectors, thereby improving the adaptability to the number of wire cores of signal cables in railway signal machinery rooms.

[0005] The lightning protection distribution module provided by this utility model includes a distribution terminal and a surge protector. The distribution terminal and the surge protector are respectively located on the two side walls of the mounting plate and are detachably connected to the mounting plate. A connecting hole is provided on the mounting plate. The outlet of the distribution terminal is coupled to the surge protector through a lightning protection cable passing through the connecting hole. The mounting plate is provided with a connection part that can be connected to another mounting plate.

[0006] Furthermore, the mounting plate is also provided with two wire groove structures extending along the first direction on the same side wall as the branch terminal, and the multiple branch terminals and multiple surge protectors are also arranged regularly along the first direction.

[0007] Furthermore, the two cable tray structures are spaced apart along a direction perpendicular to the first direction, the branch terminal is located between the two cable tray structures, and the mounting plate is provided with plates extending toward the surge protector near the two opposite ends along the first direction, with gaps between the surge protector and the two plates respectively.

[0008] Furthermore, the connecting hole is located between the outlet and the groove structure near the outlet.

[0009] Furthermore, the mounting plate has connecting plates protruding from two opposite ends in a direction perpendicular to the first direction, and the connecting plates have connecting holes for forming the connecting portion.

[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, a cover plate is provided between the two plates, and the two ends of the cover plate are respectively connected to the two plates by screws. The surge protector is located in the cavity formed by the cover plate and the plates. The cover plate is provided with an operation port that allows the module head of the surge protector to pass through.

[0013] Furthermore, the lightning protection distribution module also includes a collection busbar, one end of which forms a first connection end, and the other end forms a plurality of second connection ends. The second connection ends are connected to the surge protectors one by one, and the first connection ends extend in a direction perpendicular to the first direction to one end near the mounting plate.

[0014] On the other hand, the lightning protection distribution cabinet provided by this utility model includes a cabinet body, and the lightning protection distribution module as described in any of the above claims is located in the cabinet body. The cabinet body has two cabinet doors on the two side walls of the mounting plate facing the lightning protection distribution module, which are respectively arranged opposite to each other. A bracket is provided in the cabinet body, and the bracket is connected to the cabinet body. A plurality of mounting plates are arranged in sequence along a first direction and are respectively connected to the bracket through a connecting part. Beneficial effects

[0015] Compared to the design of traditional surge protection distribution cabinets, this solution provides a surge protection distribution module with a high degree of independence. The module includes distribution terminals, surge protectors, and mounting plates. The mounting plates are equipped with connection parts that can be connected to other mounting plates. In other words, the surge protection distribution modules in this solution can be connected to adjacent surge protection distribution modules through the connection parts on the mounting plates, thereby forming a surge protection distribution assembly with multiple modules to cope with different numbers of distribution cables.

[0016] Furthermore, this solution places the branch terminals and surge protectors on the two side walls of the mounting plate, instead of placing them on the same side of the mounting surface as in existing surge protection distribution cabinets. This reduces the size of the mounting plate, allowing for the connection of more surge protection distribution modules within a given space, thus handling situations with a larger number of branch cables. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the lightning protection distribution module provided in Embodiment 1 and Embodiment 2 of this utility model;

[0019] Figure 2 These are partial structural diagrams of the groove structure provided in Embodiments 1 and 2 of this utility model;

[0020] Figure 3 This is a partial structural diagram of the connecting portion provided in Embodiment 1 and Embodiment 2 of this utility model;

[0021] Figure 4 These are partial structural schematic diagrams of the collection and discharging points provided in Embodiments 1 and 2 of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the mounting plate and bracket provided in Embodiment 2 of this utility model.

[0023] Reference numerals: 1-Mounting plate; 2-Branch terminal; 3-Surge protector; 4-Connecting part; 5-Cable trough structure; 6-Cable routing channel; 7-Trough wall; 8-Cable through port; 9-Panel; 10-Connecting plate; 11-Connecting hole; 12-Charging bar; 13-First connecting end; 14-Second connecting end; 15-Bracket; a-First direction. Detailed Implementation

[0024] The specific embodiments of this utility model 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 scope of this utility model. Example

[0025] A lightning protection distribution module includes a distribution terminal 2 and a surge protector 3. The distribution terminal 2 and the surge protector 3 are located on the two side walls of the mounting plate 1 and are detachably connected to the mounting plate 1. A connecting hole 11 is provided on the mounting plate 1. The outlet of the distribution terminal 2 is coupled to the surge protector 3 through a lightning protection cable passing through the connecting hole 11. The mounting plate 1 is provided with a connecting part 4 that can be connected to another mounting plate 1.

[0026] Compared to the design of traditional surge protection distribution cabinets, this solution provides a surge protection distribution module with a high degree of independence. The module includes a distribution terminal 2, a surge protector 3, and a mounting plate 1. The mounting plate 1 is provided with a connection part 4 that can be connected to another mounting plate 1. That is, the surge protection distribution module in this solution can be connected to an adjacent surge protection distribution module through the connection part 4 on the mounting plate 1, thereby forming a surge protection distribution assembly including multiple modules to cope with different numbers of distribution cables.

[0027] In this solution, the branch terminal 2 and surge protector 3 of each module are located on the two side walls of the mounting plate 1 of the module, respectively. The outlet of the branch terminal 2 is coupled to the surge protector 3 through the lightning protection cable passing through the connecting hole 11 opened on the mounting plate 1. That is, by setting the branch terminal 2 and surge protector 3 on the two side walls of the mounting plate 1 respectively, instead of setting the branch terminal 2 and surge protector 3 on the same side of the mounting surface in the existing lightning protection distribution cabinet, the size of the mounting plate 1 is reduced, so that more groups of lightning protection distribution modules can be connected in a certain space to cope with the situation of more branch cables.

[0028] In one optional embodiment, the mounting plate 1 is further provided with two wire groove structures 5 extending along the first direction a on the same side wall as the branch terminal 2, and multiple branch terminals 2 and multiple surge protectors 3 are also arranged in a regular manner along the first direction a.

[0029] Two cable tray structures 5 are on the same side as the branch terminals 2. On the side wall of the mounting plate 1, multiple branch terminals 2 are arranged close to each other along the first direction a to form a branch group. The core of the railway signal cable that is not connected to the branch terminal 2 for branching operation is laid in one of the cable tray structures 5 and extends along the first direction a to the corresponding branch terminal 2. It extends out from the cable tray structure 5 and connects to the inlet of the branch terminal 2. The cable that has undergone branching operation extends out from the outlet and is laid in the other cable tray structure 5, thereby realizing the separation of the cable before and after branching. On the other side wall of the mounting plate 1, multiple surge protectors 3 are arranged close to each other along the first direction a to form a lightning protection group. The cable extending from one of the outlets of the branch terminal 2, i.e. the lightning protection cable, is passed through the connecting hole 11 on the mounting plate 1 and connected to the corresponding surge protector 3 on the other side of the mounting plate 1. The relative position between each branch terminal 2 and the surge protector 3 is fixed. Therefore, the lightning protection cables between the branch terminal 2 and the surge protector 3 in each lightning protection branch module are arranged in a consistent manner to facilitate wiring operations and to distinguish the lightning protection cables during maintenance.

[0030] In one optional embodiment, two cable tray structures 5 are spaced apart along a direction perpendicular to the first direction a, and a branch terminal 2 is located between the two cable tray structures 5. The mounting plate 1 is provided with plates extending toward the surge protector 3 near the two opposite ends along the first direction a, and there are gaps between the surge protector 3 and the two plates 9.

[0031] One of the two cable tray structures 5 is near the inlet and the other is near the outlet. The core of the railway signal cable that is not connected to the branch terminal 2 for branching operation is laid in the cable tray structure 5 near the inlet and extends to the corresponding branch terminal 2 to connect the core to the inlet. The cable that has undergone branching operation extends out from the outlet and is laid in the cable tray structure 5 near the outlet.

[0032] Two cable tray structures 5 are located at two opposite ends of the mounting plate 1 near the first direction a, thus forming the edge structure of the lightning protection branch module on one side wall of the branch terminal 2. The mounting plate 1 has plates extending toward the surge protector 3 at two opposite ends near the first direction a. These plates are formed by bending the ends of the mounting plate 1. The surge protector 3 is located within the groove formed between the two plates 9. Gaps exist between the surge protector 3 and the two plates 9 for installing lightning protection cables and grounding structures. The two plates 9 form the edge structure of the lightning protection branch module on one side wall of the surge protector 3. The outer wall of the plate 9 is flush with the outer wall of the cable tray structure 5 on the side wall 7 away from the branch terminal 2, thus forming a mating surface. When two adjacent lightning protection branch modules are connected, they are tightly mated together through the mating surface.

[0033] Preferably, a cover plate is provided between the two plates 9. The two ends of the cover plate are respectively connected to the two plates 9 by screws, and the two ends of the cover plate are bent along the direction perpendicular to the first direction a, thereby sealing the two end openings of the groove formed by the two plates 9. The surge protector 3 is located in the cavity formed by the cover plate and the plates 9, thereby realizing the protection of the surge protector 3. The cover plate is provided with an operation port through which the module head of the surge protector 3 can be accessed and removed when the operator performs maintenance on the surge protector 3 or replaces the module head.

[0034] In one alternative embodiment, the connecting hole 11 is located between the outlet and the cable groove structure 5 near the outlet.

[0035] In one alternative embodiment, the mounting plate 1 has a connecting plate 10 protruding from two opposite ends in a direction perpendicular to the first direction a, and the connecting plate 10 has a connecting hole 11 for forming the connecting part 4.

[0036] In one optional embodiment, the cable tray structure 5 includes a tray wall 7 for enclosing and forming a cable routing channel 6, with a plurality of cable through holes 8 spaced apart on the tray wall 7 near the cable outlet, and a plurality of cable through holes 8 spaced apart on the tray wall 7 near the cable inlet of the branch terminal 2.

[0037] The cable tray structure 5 is a U-shaped channel formed by bending a plate 9. The two opposite plates 9 form the channel walls 7 on both sides of the channel. Multiple wire-passing openings 8 are opened on the channel walls 7 along the extension direction of the cable tray structure 5, thereby ensuring that the cable tray structures 5 on both sides of the branch terminal 2 have wire-passing openings 8 facing the branch terminal 2. The core of the railway signal cable that is not connected to the branch terminal 2 for branching operation is laid in the cable tray structure 5 near the inlet and passes through the wire-passing openings 8 facing the inlet to exit the cable tray structure 5 and connect to the inlet. The cable that has undergone branching operation passes through the wire-passing openings 8 facing the outlet and then enters the cable tray structure 5 laid near the outlet.

[0038] In one optional embodiment, the lightning protection distribution module further includes a collection busbar 12, one end of which forms a first connection end 13, and the other end forms a plurality of second connection ends 14, which are connected to surge protectors 3 one by one, and the first connection end 13 extends along a direction perpendicular to the first direction a to one end near the mounting plate 1.

[0039] The busbar 12 acts as a grounding cable. Each busbar 12 includes a copper sheet and a fixed wire at one end of the copper sheet. Multiple second connection terminals 14 are formed on the copper busbar. The ends of the second connection terminals 14 can extend into the grounding port of the surge protector 3, thereby connecting it to the lightning protection circuit. The protrusions on each copper busbar correspond one-to-one with the surge protectors 3 in the lightning protection distribution module, so that all the surge protectors 3 in the lightning protection distribution module are grounded through the copper busbar, avoiding the problem of multiple and messy cables caused by each surge protector 3 being grounded separately through a grounding cable. Example

[0040] A lightning protection distribution cabinet includes a cabinet body, multiple lightning protection distribution modules located inside the cabinet body, the cabinet body has two cabinet doors on the two side walls of the mounting plates 1 facing the lightning protection distribution modules respectively, a bracket 15 is provided inside the cabinet body, the bracket 15 is connected to the cabinet body, and multiple mounting plates 1 are arranged sequentially along a first direction a and are respectively connected to the bracket 15 through connecting parts 4.

[0041] Each lightning protection distribution module's mounting plate 1 is fixed inside the cabinet by screws and brackets 15. Specifically, two brackets 15 are located at the two side walls of the cabinet and are connected to the cabinet by screws. Along the first direction a from top to bottom of the cabinet, the brackets 15 are provided with several connecting holes at equal intervals. The mounting plate 1 is located between two brackets 15. The mounting plate 1 has connecting plates 10 protruding from its two opposite ends in a direction perpendicular to the first direction a. That is, each connecting plate 10 corresponds to one bracket 15. The connecting plate 10 has a connecting hole 11 for forming a connecting part 4. The connecting hole 11 and the corresponding connecting hole on the bracket 15 are engaged by screws to fix the position of the mounting plate 1 inside the cabinet.

[0042] All mounting plates 1 are arranged in a consistent manner within the cabinet, with the branch terminals 2 of all mounting plates 1 facing one of the cabinet doors, and the surge protectors 3 facing the other cabinet door. The mounting plates 1 divide the cabinet space into two parts. The space on the branch terminal 2 side is used for branching railway signal cables, while the space on the surge protector 3 side is used for lightning protection. The two cabinet doors correspond to the branching space for railway signal cables and the lightning protection space, respectively. The operator can open the corresponding cabinet door to perform branching operations for railway signal cables, and can also open the corresponding cabinet door to perform operations involving surge protectors 3 and grounding cables related to lightning protection.

[0043] The grounding busbar is connected to the cabinet through an insulating component and extends inside the cabinet along the first direction a, and is connected to the grounding grid outside the cabinet. Therefore, the grounding busbar passes through the lightning protection branch module in sequence. One end of the collection busbar 12 of the lightning protection branch module is close to the grounding busbar. The collection busbar 12 of each lightning protection branch module is connected to the grounding port of each surge protector 3 and connected to the grounding busbar, thereby realizing the grounding of the surge protector 3.

[0044] It should be noted that any of the above embodiments are illustrative of the present invention and not limiting of it, 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 present invention can be implemented by means of hardware comprising a plurality of different elements and by means of a suitably programmed computer. In the unit claims enumerating a plurality of 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 may be interpreted as names.

[0045] The above embodiments are only suitable for illustrating the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model, and the patent protection scope of the present utility model should be defined by the claims.

Claims

1. A lightning protection distribution module, comprising distribution terminals (2) and surge protectors (3), characterized in that, The branch terminal (2) and the surge protector (3) are located on the two side walls of the mounting plate (1) respectively, and are detachably connected to the mounting plate (1). The mounting plate (1) has a connecting hole (11). The outlet of the branch terminal (2) is coupled to the surge protector (3) through the lightning protection cable passing through the connecting hole (11). The mounting plate (1) is provided with a connecting part (4) that can be connected to another mounting plate (1).

2. The lightning protection distribution module according to claim 1, characterized in that, The mounting plate (1) is also provided with two wire groove structures (5) extending along the first direction (a) on the same side wall as the branch terminal (2), and the multiple branch terminals (2) and multiple surge protectors (3) are also arranged in a regular manner along the first direction (a).

3. The lightning protection distribution module according to claim 2, characterized in that, The two cable tray structures (5) are spaced apart along a direction perpendicular to the first direction (a), the branch terminal (2) is located between the two cable tray structures (5), the mounting plate (1) is provided with plates extending toward the surge protector (3) near the two opposite ends along the first direction (a), and there are gaps between the surge protector (3) and the two plates (9).

4. The lightning protection distribution module according to claim 3, characterized in that, The connecting hole (11) is located between the outlet and the cable groove structure (5) near the outlet.

5. The lightning protection distribution module according to claim 1, characterized in that, The mounting plate (1) has a connecting plate (10) protruding from two opposite ends in a direction perpendicular to the first direction (a), and the connecting plate (10) has the connecting hole (11) for forming the connecting part (4).

6. The lightning protection distribution module according to claim 3, characterized in that, The cable tray structure (5) includes a tray wall (7) for enclosing and forming a cable routing channel (6), and multiple cable insertion holes (8) are opened at intervals on the tray wall (7) near the cable outlet.

7. The lightning protection distribution module according to claim 6, characterized in that, Multiple wire-passing holes (8) are provided at intervals on the groove wall (7) near the wire inlet of the branch terminal (2).

8. The lightning protection distribution module according to claim 3, characterized in that, A cover plate is provided between the two plates (9), and the two ends of the cover plate are respectively connected to the two plates (9) by screws. The surge protector (3) is located in the cavity formed by the cover plate and the plates (9). The cover plate is provided with an operation port for the module head of the surge protector (3) to pass through.

9. The lightning protection distribution module according to claim 3, characterized in that, The lightning protection distribution module also includes a collection bar (12), one end of which forms a first connection end (13), and the other end forms a plurality of second connection ends (14). The second connection ends (14) are connected one-to-one with the surge protector (3). The first connection end (13) extends along a direction perpendicular to the first direction (a) to one end near the mounting plate (1).

10. A lightning protection distribution cabinet, comprising a cabinet body, characterized in that, The lightning protection distribution module as described in any one of claims 1-9 is located inside the cabinet. The cabinet has two cabinet doors that are respectively arranged opposite to the two side walls of the mounting plate (1) of the lightning protection distribution module. A bracket (15) is provided inside the cabinet. The bracket (15) is connected to the cabinet. A plurality of mounting plates (1) are arranged in sequence along the first direction (a) and are respectively connected to the bracket (15) through the connecting part (4).

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