Underframe wiring structure

Abstract

The utility model discloses a chassis wiring structure, and relates to the technical field of railway vehicles, and the chassis wiring structure comprises at least one multi-core cable; the wire duct is used for bearing the multi-core cable, the wire duct is of a U-shaped plate structure, the multi-core cable penetrates through the wire duct, and the middle section of the multi-core cable is placed in the wire duct; the cable fixing supports are arranged at the two ends of the wire groove and used for fixing the two ends of the multi-core cable; one end of the multi-core cable penetrates through a preset cable joint and is connected with the junction box through a connector; and a plurality of cable fixing pieces are arranged in the wire slot at intervals. According to the invention, the multi-core cable is matched with various cable fixing parts in the wire duct, so that various wiring requirements are met, maintenance and management by constructors are facilitated, and the working efficiency is effectively improved on the premise of reducing the manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of rail vehicle technology, specifically to a chassis wiring structure. Background Technology

[0002] With the rapid development of high-speed rail vehicle technology in China, the functions carried by rail vehicles are changing rapidly, and the types and quantities of onboard equipment are gradually increasing. The problem that follows is that the underframe wiring harness increases, but the wiring space is compressed due to the increase in equipment. At the same time, it also poses new challenges to the EMC (Electromagnetic Compatibility) of power and signal cables in the underframe area.

[0003] The current wiring in the underframe area of ​​rail vehicles mainly relies on single-core wire harnesses with threaded conduits. The threaded conduits are fixed to the target equipment via cable connectors, with one threaded conduit corresponding to two cable connectors. Later modifications and maintenance require adding or removing cables inside the threaded conduits, which is time-consuming and impractical. This method is increasingly unable to meet the demands of vehicle functional upgrades.

[0004] Therefore, to meet practical needs, a base frame wiring structure is provided. Summary of the Invention

[0005] In view of the deficiencies in the existing technology, the purpose of this application is to provide a base frame cabling structure that uses multi-core cables in conjunction with various cable fixing components in the cable tray to meet diverse cabling needs while facilitating maintenance and management by construction personnel, thereby effectively improving work efficiency while reducing manufacturing costs.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] This application provides a chassis wiring structure, the chassis wiring structure comprising:

[0008] At least one multi-core cable;

[0009] A cable tray for carrying the multi-core cable, the cable tray having a U-shaped plate structure, the multi-core cable passing through the cable tray, with the middle section of the multi-core cable placed inside the cable tray;

[0010] Cable fixing brackets are provided at both ends of the cable tray to fix the ends of the multi-core cable.

[0011] In the junction box, one end of the multi-core cable passes through a pre-set cable connector and is connected to the junction box via a connector;

[0012] The cable tray is provided with multiple cable fixing components at intervals, the cable fixing components including:

[0013] A first cable fastener, comprising:

[0014] A first wire groove connecting plate and a first cable connecting plate are connected perpendicularly to each other in an L-shape. The first wire groove connecting plate is connected to the inside of the wire groove. The bottom or top surface of the first cable connecting plate is provided with a first cable fixing hole for the multi-core cable to pass through.

[0015] The second cable fastener includes:

[0016] A second cable connecting plate, a second cable trough connecting plate, and another second cable connecting plate are connected in sequence and in a U-shape. The bottom surface of the two second cable connecting plates or the top surface of the second cable trough connecting plate is connected to the inside of the cable trough. The bottom surface of the two second cable connecting plates or the top surface of the second cable trough connecting plate is provided with a second cable fixing hole for the multi-core cable to pass through.

[0017] The third cable fixing component includes:

[0018] A third cable tray connecting plate and a third cable connecting plate are connected perpendicularly to each other in an L-shape. The free end of the third cable tray connecting plate is connected to the inside of the cable tray, and the free end of the third cable connecting plate is connected to the inside of the cable tray. The third cable connecting plate is provided with a third cable fixing hole for the multi-core cable to pass through.

[0019] Based on the above technical solution, the cable fixing component further includes:

[0020] The fourth cable fastener includes:

[0021] A fourth cable tray connecting plate with a rectangular plate structure, wherein the fourth cable tray connecting plate is provided with a fourth cable fixing hole for the multi-core cable to pass through.

[0022] Based on the above technical solution, the base frame wiring structure includes at least two multi-core cables. Furthermore, based on the above technical solution, a cable tray divider is configured within the cable tray, which divides the cable tray into cable passage spaces of different voltage levels for the multi-core cables to pass through.

[0023] Compared with the prior art, the advantages of this application are:

[0024] This application utilizes multi-core cables in conjunction with various cable fixing components within the cable tray to meet diverse wiring needs while facilitating maintenance and management by construction personnel. This effectively improves work efficiency while reducing manufacturing costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the base frame wiring structure according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the assembly of the cable tray in the chassis wiring structure according to an embodiment of this application;

[0028] Figure 3 This is an assembly diagram of the first cable fixing component in the chassis wiring structure of this application embodiment;

[0029] Figure 4 This is an assembly diagram of the third cable fixing component in the chassis wiring structure of this application embodiment;

[0030] Figure 5 This is an assembly diagram of the second cable fixing member and the fourth cable fixing member in the chassis wiring structure of this application embodiment;

[0031] Figure 6 This is an assembly diagram of the second cable fixing component in the chassis wiring structure of this application embodiment;

[0032] In the picture:

[0033] 1. Multi-core cable; 2. Cable trough; 21. Cable trough divider; 3. Cable fixing bracket; 4. Distribution box; 40. Cable connector; 41. Connector; 5. Cable running space; A. First cable fixing component; A0. First cable trough connecting plate; A1. First cable connecting plate; A2. First cable fixing hole; B. Second cable fixing component; B0. Second cable trough connecting plate; B1. Second cable connecting plate; B2. Second cable fixing hole; C. Third cable fixing component; C0. Third cable trough connecting plate; C1. Third cable connecting plate; C2. Third cable fixing hole; D. Fourth cable fixing component; D0. Fourth cable trough connecting plate; D1. Fourth cable fixing hole. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0036] This application provides a base frame cabling structure that uses multi-core cables in conjunction with various cable fixing components in the cable tray to meet diverse cabling needs while facilitating maintenance and management by construction personnel. This effectively improves work efficiency while reducing manufacturing costs.

[0037] To achieve the aforementioned technical effects, the overall concept of this application is as follows:

[0038] A base frame wiring structure, the base frame wiring structure comprising:

[0039] At least one multi-core cable 1;

[0040] The cable tray 2 is used to carry the multi-core cable 1. The cable tray 2 is a U-shaped plate structure. The multi-core cable 1 passes through the cable tray 2, and the middle section of the multi-core cable 1 is placed in the cable tray 2.

[0041] Cable fixing brackets 3 are provided at both ends of the cable tray 2 to fix the two ends of the multi-core cable 1;

[0042] Distribution box 4, one end of the multi-core cable 1 passes through a preset cable connector 40 and is connected to the distribution box 4 via a connector 41;

[0043] Multiple cable fixing components are spaced apart within the cable trough 2, and the cable fixing components include:

[0044] First cable fastener A, the first cable fastener A includes:

[0045] A first wire groove connecting plate A0 and a first cable connecting plate A1 are connected perpendicularly to each other in an L-shape. The first wire groove connecting plate A0 is connected to the inside of the wire groove 2. The bottom or top surface of the first cable connecting plate A1 is provided with a first cable fixing hole A2 for the multi-core cable 1 to pass through.

[0046] The second cable fixing component B includes:

[0047] A second cable connecting plate B1, a second cable trough connecting plate B0, and another second cable connecting plate B1 are connected in sequence and in a U-shape. The bottom surface of the two second cable connecting plates B1 or the top surface of the second cable trough connecting plate B0 is connected to the inside of the cable trough 2. The bottom surface of the two second cable connecting plates B1 or the top surface of the second cable trough connecting plate B0 is provided with a second cable fixing hole B2 for the multi-core cable 1 to pass through.

[0048] The third cable fixing component C includes:

[0049] A third cable tray connecting plate C0 and a third cable connecting plate C1 are connected perpendicularly to each other in an L-shape. The free end of the third cable tray connecting plate C0 is connected to the inside of the cable tray 2, and the free end of the third cable connecting plate C1 is connected to the inside of the cable tray 2. The third cable connecting plate C1 is provided with a third cable fixing hole C2 for the multi-core cable 1 to pass through.

[0050] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0051] See Figures 1-6 As shown, this application embodiment provides a base frame wiring structure, which includes:

[0052] At least one multi-core cable 1;

[0053] The cable tray 2 is used to carry the multi-core cable 1. The cable tray 2 is a U-shaped plate structure. The multi-core cable 1 passes through the cable tray 2, and the middle section of the multi-core cable 1 is placed in the cable tray 2.

[0054] Cable fixing brackets 3 are provided at both ends of the cable tray 2 to fix the two ends of the multi-core cable 1;

[0055] Distribution box 4, one end of the multi-core cable 1 passes through a preset cable connector 40 and is connected to the distribution box 4 via a connector 41;

[0056] Multiple cable fixing components are spaced apart within the cable trough 2, and the cable fixing components include:

[0057] First cable fastener A, the first cable fastener A includes:

[0058] A first wire groove connecting plate A0 and a first cable connecting plate A1 are connected perpendicularly to each other in an L-shape. The first wire groove connecting plate A0 is connected to the inside of the wire groove 2. The bottom or top surface of the first cable connecting plate A1 is provided with a first cable fixing hole A2 for the multi-core cable 1 to pass through.

[0059] The second cable fixing component B includes:

[0060] A second cable connecting plate B1, a second cable trough connecting plate B0, and another second cable connecting plate B1 are connected in sequence and in a U-shape. The bottom surface of the two second cable connecting plates B1 or the top surface of the second cable trough connecting plate B0 is connected to the inside of the cable trough 2. The bottom surface of the two second cable connecting plates B1 or the top surface of the second cable trough connecting plate B0 is provided with a second cable fixing hole B2 for the multi-core cable 1 to pass through.

[0061] The third cable fixing component C includes:

[0062] A third cable tray connecting plate C0 and a third cable connecting plate C1 are connected perpendicularly to each other in an L-shape. The free end of the third cable tray connecting plate C0 is connected to the inside of the cable tray 2, and the free end of the third cable connecting plate C1 is connected to the inside of the cable tray 2. The third cable connecting plate C1 is provided with a third cable fixing hole C2 for the multi-core cable 1 to pass through.

[0063] In this embodiment, multi-core cables are used in conjunction with various cable fixing components in the cable tray to meet diverse wiring needs while facilitating maintenance and management by construction personnel. This effectively improves work efficiency while reducing manufacturing costs.

[0064] Furthermore, the cable fixing component also includes:

[0065] The fourth cable fastener D includes:

[0066] The fourth cable tray connecting plate D0 has a rectangular plate structure, and the fourth cable tray connecting plate D0 is provided with a fourth cable fixing hole D1 for the multi-core cable 1 to pass through.

[0067] Furthermore, the base frame wiring structure includes at least two multi-core cables 1. It should be noted that, depending on the length of the multi-core cables 1 and the actual connection length requirements, this application has several configuration methods, as follows:

[0068] At least one multi-core cable 1 is configured in the cable tray 2. When at least two multi-core cables 1 are present, they are arranged side by side with intervals between them.

[0069] Furthermore, a cable tray dividing plate 21 is configured inside the cable tray 2, which divides the cable tray 2 into cable passage spaces 5 for different power supply levels for the multi-core cable 1 to pass through.

[0070] It should be noted that the chassis wiring method mentioned in the technical solution of this application embodiment is based on the pre-wiring in the design stage. It uses multi-core wires instead of traditional single-core wires with threaded tubes, which greatly reduces the wiring space, facilitates cable layout and later upgrades and modifications, and meets higher EMC protection level requirements.

[0071] Existing underframe cabling methods mostly employ single-core wires encased in threaded conduits, with one conduit per bundle of wires. After the conduit is laid, subsequent upgrades and modifications involving additional wiring harnesses are time-consuming and costly. Furthermore, in vehicle maintenance, repairing and tracing damage to the wiring harnesses inside the conduit is cumbersome. The cabling method described in this application is completely different from existing structures. All wiring harnesses use multi-core wires. Pre-analysis of the source and destination of the wiring harnesses during the design phase allows for complete separation of high- and low-voltage wiring harnesses, meeting higher EMC standards. After leaving the cable tray, the wiring harnesses are fixed with metal brackets and enter the equipment connector through glands. Spare wires are reserved inside the multi-core wires, making fault maintenance simple and easy. Adding cables during upgrades is not constrained by the space of the threaded conduit, and wiring harness laying is convenient and quick.

[0072] The design concept of the technical solution in this application is as follows:

[0073] After classifying multi-core cable harnesses according to their EMC ratings, they are routed through cable trays in the base frame to the target equipment to meet EMC requirements. Different types of multi-core cables are selected based on design requirements. For the size and quantity of cable harnesses used in the target equipment, equipment connectors or metal mounting plates are chosen, and cable joints are used to secure the multi-core cables. When the distance from the cable tray exit to the equipment is greater than 300mm, metal brackets are used to secure the cables. Where high-voltage and low-voltage cables cross, metal shielding mesh is used for protection to meet higher shielding requirements.

[0074] In summary, the technical solutions of this application have the following technical advantages:

[0075] First, different multi-core cables can be selected according to design requirements, offering a wide range of choices. Spare wires are reserved inside the cables, making it easier to find the target cable during later replacement or maintenance. At the same time, for upgrade needs involving additional cables, there are no space limitations in the threaded tube, improving feasibility.

[0076] Secondly, using multi-core cables instead of single-core cables with threaded conduits can effectively reduce the space required for wiring, reduce the bending radius of the wire harness, and make the wiring method more flexible.

[0077] Third, the signal and power cables are completely separated in the early stages of the design to ensure high EMC level requirements.

[0078] Fourth, for signal cables with high shielding requirements, shielded network tubes can be used more conveniently for protection.

[0079] Fifth, for cable assemblies with end connectors, the space constraints of threaded conduits no longer apply, allowing for faster wiring.

[0080] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0081] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A chassis wiring structure characterized by comprising: The chassis wiring structure comprises: at least one multi-core cable (1); a wire slot (2) for carrying the multi-core cable (1), the wire slot (2) is a U-shaped plate structure, the multi-core cable (1) passes through the wire slot (2), and a middle section of the multi-core cable (1) is placed in the wire slot (2); a cable fixing support (3) arranged at both ends of the wire slot (2) for fixing both ends of the multi-core cable (1); a distribution box (4), one end of the multi-core cable (1) passes through a preset cable joint (40) and is connected with the distribution box (4) through a connector (41); a plurality of cable fixing members are arranged in the wire slot (2) at intervals, and the cable fixing member comprises: a first cable fixing member (A), the first cable fixing member (A) comprises: a first wire slot connecting plate member (A0) and a first cable connecting plate member (A1) which are connected in an L shape and perpendicular to each other, the first wire slot connecting plate member (A0) is connected with the inside of the wire slot (2), and a first cable fixing hole member (A2) for the multi-core cable (1) to pass through is arranged on the bottom surface or the top surface of the first cable connecting plate member (A1); a second cable fixing member (B), the second cable fixing member (B) comprises: a second wire slot connecting plate member (B0), a second cable connecting plate member (B1) and another second cable connecting plate member (B1) which are connected in sequence and in a U shape, the bottom surface of the two second cable connecting plate members (B1) or the top surface of the second wire slot connecting plate member (B0) is connected with the inside of the wire slot (2), and a second cable fixing hole member (B2) for the multi-core cable (1) to pass through is arranged on the bottom surface of the two second cable connecting plate members (B1) or the top surface of the second wire slot connecting plate member (B0); a third cable fixing member (C), the third cable fixing member (C) comprises: a third wire slot connecting plate member (C0) and a third cable connecting plate member (C1) which are connected in an L shape and perpendicular to each other, the free end of the third wire slot connecting plate member (C0) is connected with the inside of the wire slot (2), the free end of the third cable connecting plate member (C1) is connected with the inside of the wire slot (2), and a third cable fixing hole member (C2) for the multi-core cable (1) to pass through is arranged on the third cable connecting plate member (C1).

2. The chassis wiring structure of claim 1, wherein, The cable fixing member further comprises: a fourth cable fixing member (D), the fourth cable fixing member (D) comprises: a fourth wire slot connecting plate member (D0) in a rectangular plate structure, and a fourth cable fixing hole member (D1) for the multi-core cable (1) to pass through is arranged on the fourth wire slot connecting plate member (D0).

3. The chassis wiring structure according to claim 1, wherein: the chassis wiring structure comprises at least two multi-core cables (1).

4. The chassis wiring structure according to claim 1, wherein: a wire slot partition plate (21) is arranged in the wire slot (2), and the wire slot (2) is divided into cable passing spaces (5) for the multi-core cable (1) to pass through in different voltage grades in the inside of the wire slot (2).

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