Cable system

Abstract

The invention relates to a cable system (2, 2') for electrical and / or data connection of a first wagon (1) with a second wagon (1'), wherein the cable system (2, 2') has at least one inner cable (5) and / or an electrical conductor (6, 6') and at least one empty conduit (9), wherein the cable system (2, 2') has a cable sheath (10), wherein the cable (5) and / or the electrical conductor (6, 6') and the at least one empty conduit (9) are arranged inside the cable sheath (10).

Description

[0001] The invention relates to a cable system according to the preamble of independent claim 1.

[0002] Such cable systems are used to establish an electrical connection between a first wagon and a second wagon in the railway sector. State of the art

[0003] EP 3 928 396 A1 shows a bushing housing used in railway applications to connect two wagons for electrical and signaling purposes. The bushing housing is attached to a cable gland in the wagon wall. Cables and / or electrical lines run from the bushing housing of the first wagon to the bushing housing of the second wagon, and are attached to the bushing housing, for example, via a plug connector.

[0004] Railcars are typically used for a very long time. If, during their service life, it becomes necessary to modernize them, particularly their data infrastructure, new electrical lines usually need to be laid between them. This involves replacing and / or supplementing the existing cables between the railcars. Task

[0005] The object of the invention is to propose a cable system that runs between two wagons and enables simpler data-related modernization or retrofitting.

[0006] The problem is solved by the subject matter of independent claim 1.

[0007] Advantageous embodiments of the invention are specified in the dependent claims and the following description.

[0008] The cable system according to the invention is preferably designed for attachment to a feed-through housing which is mounted on a wall of a wagon. The cable system then runs from a first wagon to an adjacent second wagon and serves for the electrical and / or data connection of the wagons.

[0009] The cable system comprises at least one electrical cable and / or conductor. Furthermore, the cable system according to the invention comprises at least one conduit into which one or more additional cables and / or conductors can be inserted. This allows additional cables and / or conductors to run between the wagons.

[0010] The cable system has a cable sheath. The electrical cable and / or conductor and at least one conduit are located within or surrounded by the cable sheath and are thus mechanically protected.

[0011] The cable system is preferably manufactured using an extrusion process. It is therefore an extruded cable system. In the extrusion process, the conductors and / or cables and conduits mentioned above are encased in a layer of raw plastic. This raw plastic layer is vulcanized or hardened and, according to the invention, is also referred to as the cable sheath of the cable system. This cable sheath fits very tightly around the conductors, cables, and conduits mentioned above and is therefore compact in diameter. The diameter of such a system is much smaller than the diameter that would result from using a cable conduit into which the conductors, cables, and conduits would be inserted. The cable sheath protects the components within from external damage and, in particular, from abrasion.

[0012] Preferably, the cable sheath of the cable system consists of polyvinyl chloride (PVC), polyurethane (PUR) or a thermoplastic elastomer (TPE).

[0013] Preferably, the wall thickness of the cable sheath is between 0.2 and 5 millimeters, but more preferably between 0.8 and 1.2 millimeters. The edge areas are included in this range. Such wall thickness ranges offer the optimal compromise between mechanical protection and flexibility of the cable system.

[0014] Preferably, the inner cable encompassed by the cable system is a multi-core cable. The inner cable can be designed as a hybrid cable and may contain electrical, pneumatic, and / or optical fibers.

[0015] Advantageously, the cable system comprises at least two internal cables, at least two electrical conductors, and at least two conduits. Preferably, the conduits are arranged symmetrically to each other when viewed in the cross-section of the cable system. Advantageously, this is point symmetry if the center of the cable system cross-section is chosen as the point of symmetry.

[0016] In an advantageous embodiment of the invention, the conduits have different diameters. This allows different cables and / or conductors to be retrofitted in one or more conduits.

[0017] Advantageously, the diameter of the conduit(s) is larger than the diameter of the cable(s). This allows additional cables and / or conductors to be easily inserted into the cable system and pushed through to the wagon to be connected.

[0018] The cable conduits according to the invention are used in railway applications and are therefore exposed to extreme weather conditions. The use of empty conduits is generally avoided in these applications, as this can lead to moisture ingress or exacerbate the risk of such ingress. Therefore, the cable conduits must be attached to the feedthrough housing in a particularly watertight manner. In an advantageous embodiment, the end sections of the cable system are sealed to the feedthrough housing with a shrink-wrap material. Example of implementation

[0019] An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show: Fig. 1 a schematic representation of two wagons that are electrically and data-wise connected to each other via a cable system, Fig. 2 a schematic cross-section of a first embodiment of a cable system according to the invention and Fig. 3 a schematic cross-section of a second embodiment of a cable system according to the invention.

[0020] The figures contain simplified, schematic representations. In some cases, identical reference symbols are used for elements that are the same but may not be identical. Different views of the same elements may be scaled differently. Directional indications such as "left," "right," "up," and "down" are to be understood in relation to the respective figure and may vary between the individual representations compared to the object depicted.

[0021] The Fig. Figure 1 shows a schematic representation of two wagons 1, 1' which are electrically and electronically connected to each other via a cable system 2. Mechanically, the wagons 1, 1' are connected to each other via an indicated coupling 4.

[0022] The cable system 2 is connected at one end to a bushing 3 of the first wagon 1 and at the other end to a bushing 3 of the second wagon 1'. The cable system 2 has a cable sheath 10, which, as described above, is manufactured by extrusion. Electrical cables and / or electrical, pneumatic, and / or optical conductors run inside the cable sheath 10 and are connected to the corresponding infrastructure of the wagons.

[0023] The Fig. Figure 2 shows a cross-section of a first embodiment of a cable system 2 according to the invention. The cable system cross-section has a center point M, which is located in Fig. 2 is marked as a cross. Within cable system 2, two inner cables 5 are arranged diagonally to each other.

[0024] The inner cables 5 each have two electrical conductors 6, for example copper conductors, arranged diagonally to each other for current or energy transmission. Furthermore, the cables 5 each have a pneumatic conductor 7, through which media, in particular air, can be transmitted. The inner cables 5 also each have an optical conductor 8 for transmitting light wavelengths, which are particularly useful for high-speed data transmission.

[0025] Within the cable system 2, two diagonally arranged empty conduits 9 are provided. Additional single conductors and / or internal cables 5 can be laid between the wagons 1 and 1' through the empty conduits 9.

[0026] In cable system 2, four individual conductors 6, 7, 8 are arranged in a rectangular configuration. This means that the individual conductors 6, 7, 8 form the vertices of an optical rectangle. The conduits 9 space the inner cables 5 and individual conductors 6, 7, 8 from each other in such a way that they do not negatively influence each other, for example through electrical crosstalk.

[0027] In Fig.Figure 3 shows a second embodiment of a cable system 2' according to the invention. In this embodiment, five empty conduits 9 are arranged in a cross shape. The empty space formed by the cross-shaped empty conduits 9 within the cable system 2' is filled with individual electrical conductors 6'. The individual conductors 6' are copper conductors suitable for transmitting high currents. The cross-shaped arrangement of the empty conduits 9 ensures that excessively high temperatures do not occur during power transmission. In this embodiment, the empty conduits 9 can be used for retrofitting data cables or corresponding optical individual conductors.

[0028] Even though the figures show various aspects or features of the invention in combination, it is apparent to the person skilled in the art – unless otherwise stated – that the combinations shown and discussed are not the only possible ones. In particular, corresponding units or sets of features from different embodiments can be interchanged. Reference symbol list 1 Wagon 2 cable system 3 feedthrough housings 4 clutch 5 Inner cable 6 Electrical conductor 7 Pneumatic conductor 8 Optical conductor 9 empty conduit QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3 928 396 A1

[0003]

Claims

[1] Cable system (2, 2') for the electrical and / or data connection of a first wagon (1) to a second wagon (1'), wherein the cable system (2, 2') has at least one inner cable (5) and / or one electrical conductor (6, 6') and at least one empty pipe (9), wherein the cable system (2, 2') has a cable sheath (10), wherein the cable (5) and / or the electrical conductor (6, 6') and the at least one empty pipe (9) are arranged within the cable sheath (10). [2] Cable system (2, 2') according to claim 1 characterized by that the cable (5) is a multi-core cable. [3] Cable system (2, 2') according to one of the preceding claims characterized by that the cable (5) has both electrical and optical wires. [4] Cable system (2, 2') according to one of the preceding claims characterized bythat the cable system (2, 2') has at least two cables (5), at least two electrical conductors (6, 6') and at least two empty pipes (9). [5] Cable system (2, 2') according to the preceding claim characterized by that the empty pipes (9), viewed in the cross-section of the cable system (2, 2'), are arranged symmetrically or cross-shaped to one another. [6] Cable system (2, 2') according to one of the preceding claims 4 or 5 characterized by that the empty pipes (9) have different diameters. [7] Cable system (2, 2') according to one of the preceding claims characterized by that the diameter of the empty pipe (9) or the empty pipes (9) is larger than the diameter of the cable (5) or the cables (5). [8] Cable system (2, 2') according to one of the preceding claims characterized by that the cable system (2, 2') has a cable sheath (10) which is produced in an extrusion process. [9] Cable system (2, 2') according to one of the preceding claims characterized by that the cable sheath (10) consists of polyvinyl chloride (PVC), polyurethane (PUR) or a thermoplastic elastomer (TPE). [10] Cable system (2, 2') according to one of the preceding claims characterized by that the wall thickness of the cable sheath (10) is between 0.2 and 5 millimeters, but preferably between 0.8 and 1.2 millimeters.

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