Ready-made line and method for ready-made line

Abstract

A prefabricated cable is proposed, comprising a cable having at least two coaxially arranged conductors with a stripped cable end, a base body in which the cable with the stripped cable end is arranged, at least one first electrically conductive plate-shaped element and a second electrically conductive plate-shaped element, wherein at least one first electrically conductive contact socket and a second electrically conductive contact socket are arranged next to one another in the base body. The first electrically conductive plate-shaped element extends between the first contact socket and the stripped cable end, wherein one side of the first plate-shaped element is connected to the first contact socket and another side of the first plate-shaped element opposite the first side is integrally connected to the stripped cable end.The second electrically conductive plate-shaped element extends between the second contact socket and the stripped cable end, with one side of the second plate-shaped element being connected to the second contact socket and another side of the second plate-shaped element, opposite the first side, being integrally connected to the stripped cable end. Furthermore, a method for assembling a cable is proposed.

Description

Technical area

[0001] The present invention relates to a prefabricated cable, which is particularly designed for use in vehicles, in particular motor vehicles. Furthermore, the invention relates to a method for assembling a cable, which is particularly intended for use in vehicles. State of the art

[0002] The assembly of cables is known, for example, from AT 017 394 U1, DE 10 2021 107 921 B4, DE 297 12 306 U1, US 2021 / 0119376 A1, DE 10 2019 119 468 A1, WO 2023 / 024971 A1, US 2022 / 0224059 A1, or DE 10 2022 103 647 A1, whereby stranded conductors are provided with corresponding connection options. In particular, AT 017 394 U1, DE 297 12 306 U1, and DE 10 2021 107 921 B4 relate to coaxial conductors.

[0003] Future electric vehicles will be charged with very high currents, approximately 600-1000 A, as exemplified in DE 10 2021 107 921 B4. Very large cable cross-sections are required to transmit such currents. In automotive engineering, there is a need to produce electrical cables made of light metal, such as aluminum and its alloys, in order to reduce costs and weight of the components. Solid conductors are increasingly being used instead of stranded wires. However, problems arise when electrically contacting these cables with a contact element. Flat conductors or single conductors are predominantly used. These conductors are primarily rigid, requiring a complex bending process involving many components and cost-intensive manufacturing steps.

[0004] There is therefore a need for an improved pre-assembled cable that can be assembled using simpler processes and with less material and manufacturing effort, while being able to withstand the mechanical stress in motor vehicles and being suitable for high currents. Description of the invention

[0005] An object of the invention is therefore to create a prefabricated cable and a method for assembling a cable using means that are as simple as possible in terms of construction, with which the connection of round conductors, in particular coaxial conductors, to other electrically conductive contact elements can be realized, so that the lowest possible electrical resistance prevails between this contact.

[0006] The object is achieved by the subject matter of the independent claims. Advantageous developments of the invention are specified in the dependent claims, the description, and the accompanying figures.

[0007] The described embodiments apply equally to the method for assembling a cable. Synergistic effects can arise from various combinations of the embodiments, even if they are not described in detail.

[0008] According to one aspect of the invention, a prefabricated cable is described with the following elements, which are not exclusively limited thereto. The prefabricated cable has a cable with at least two coaxially arranged conductors, the cable end being stripped. Furthermore, the prefabricated cable has a base body in which the cable with the stripped cable end is arranged, and furthermore at least a first electrically conductive plate-shaped element and a second electrically conductive plate-shaped element. At least a first electrically conductive contact socket and a second electrically conductive contact socket are arranged next to one another in the base body.The first electrically conductive plate-shaped element extends between the first contact socket and the stripped cable end, wherein one side of the first plate-shaped element is connected to the first contact socket and another side of the first plate-shaped element opposite the first side is integrally connected to the stripped cable end. The second electrically conductive plate-shaped element extends between the second contact socket and the stripped cable end, wherein one side of the second plate-shaped element is connected to the second contact socket and another side of the second plate-shaped element opposite the first side is integrally connected to the stripped cable end.

[0009] In other words, the present invention proposes a two-core cable, in particular a coaxial cable for use in vehicles, which is arranged in a base body. Each of the two conductors of the cable is connected to a corresponding contact socket by means of a plate-shaped element, wherein the connection of the cable and the contact socket takes place via the respective plate-shaped element, which plate-shaped element is integrally connected to the cable. With the design of the pre-assembled cable according to the invention, the two conductors of the cable can be assembled before a bending process of the cable, i.e. they can be assembled as a whole. The contact elements, such as the contact sockets, which represent the interface between the cable and, for example, adjacent high-voltage components in the vehicle, can be manufactured together in a single production step.The present invention makes it possible to assemble a coaxial cable from conductors made of a rigid light metal. Compared to flat conductors, the use of coaxial conductors results in lower electromagnetic compatibility (EMC) loads, a simpler bending process, fewer components, and fewer manufacturing steps. By means of the present invention, rigid round conductors, in particular rigid coaxial cables, can be assembled. By using a base body for all of the elements arranged therein, such as the contact elements and the plate-shaped elements and the cable, the base body can be limited to one component, thus resulting in a reduction in components and thus in costs. The use of a cable with coaxially arranged conductors, ieParticularly round conductors, the higher rigidity of coaxial cables allows for fewer connection points for integration in the vehicle and simplifies the assembly of the pre-assembled cable in a vehicle, particularly making this assembly easier to automate. This conditioned cable designed in this way implements a simpler bending process due to the use of coaxially arranged conductors, which simplifies installation space integration, i.e., integration in the vehicle.

[0010] The term "prefabricated cable" refers in particular to the production of ready-to-connect cables, cable bundles, and complete wiring harnesses with connectors, contacts, and terminal sleeves. These cables can be used primarily to supply electrical power to consumers, particularly in motor vehicles. Such a prefabricated cable can, for example, have / represent a connector that can be used with a mating connector, particularly one that is screwed together. The mating connector can, for example, be part of a charging socket or a high-voltage storage device.

[0011] The term "two coaxially arranged conductors" can be understood in particular to mean a coaxial line, i.e., a coaxial cable, which consists of at least two coaxially arranged round conductors. For example, a line used in the present invention can consist of the following elements: an inner conductor, in particular made of a light metal such as aluminum, which represents, for example, the DC negative conductor, an inner insulation built thereon, an outer conductor connected thereto, in particular made of a light metal such as aluminum, which represents the DC positive conductor, and further connected thereto an outer insulation.

[0012] The term "stripped cable end" refers specifically to the exposure of the conductive parts of the cable. This means that the two electrically conductive conductors of the cable are stripped of their insulation, allowing contact between these conductors via the remaining components of the pre-assembled cable. Exposing or insulating these conductors can, for example, represent an additional process step in the production of such a pre-assembled cable.

[0013] The term "electrically conductive plate-shaped element" can be understood, in particular, as a flat element obtained, for example, by a stamping process. For example, the plate-shaped element can be a stamped sheet made of an electrically conductive material.

[0014] The term "material-to-material connection" can be understood in particular as the contacting of the two corresponding elements, in this case the contacting of the cable, or the exposed cable ends, with the respective plate-shaped element using a method or a manufacturing process that connects these two parts to one another in a material-to-material manner. In particular, the material-to-material connection is understood as a joining of the two parts by laser welding. The conductor used in the prefabricated cable according to the invention is, in particular, an aluminum conductor, which can be contacted by means of a material-to-material connection in order to provide a firm and permanent electrically conductive connection.Aluminum can form an oxide layer on its surface, which, in a purely force-fit connection, leads to high electrical resistance under unfavorable environmental conditions. To avoid this, the present invention relies on a material-fit connection to the insulated cable ends.

[0015] The contact sockets can, in particular, be copper sockets. The mating contacts in charging sockets or high-voltage storage devices are also typically made of copper and coated with silver. This allows the contact socket to be made of the same material as the mating contacts to prevent corrosion under adverse environmental conditions and ensure low electrical resistance.

[0016] In one embodiment of the invention, the first contact socket can have a first connection surface and the second contact socket can have a second connection surface, which first and second connection surfaces are aligned in the same direction, wherein the first and second connection surfaces of the contact sockets are arranged next to one another on a plane and / or wherein the plate-shaped elements extend at a distance from one another on a same plane from the contact socket to the stripped line end.

[0017] The term "connection surface" refers in particular to the surface that comes into contact with the counterpart during installation, for example, in a motor vehicle. This connection surface is shown in detail in the figures. According to this embodiment, these connection surfaces should be on one plane. If the connection surfaces were not on one plane, the rigid connection created by the coaxial cable could not be screwed to both boxes with the required surface pressure. For this reason, the contact sockets according to the invention are arranged with their connection surfaces on one plane.

[0018] In one embodiment of the invention, the first contact socket and the first electrically conductive plate-shaped element can be connected to one another in a materially bonded manner, in particular by friction welding, wherein the second contact socket and the second electrically conductive plate-shaped element can be connected to one another in a materially bonded manner, in particular by friction welding. This means that the contact sockets can be pressed with great force against the plate-shaped elements, for example against the stamped sheets, and welded at the end by rotation about their own axis. A materially bonded connection between the plate-shaped elements and the contact sockets enables a secure and firm connection of these two parts, which can withstand the stresses during use.

[0019] In one embodiment of the invention, the base body can have two opposing openings on the side on which the cable is arranged, which openings are provided to enable access to the stripped cable end, in particular for a material-to-material connection. In particular, two opposing sides of the base body can be open, i.e. they form opposing openings. These two opposing sides of the base body can be either completely open or partially open, so that a material-to-material connection can be made. This enables access to the cable during the assembly process. In particular, a material-to-material connection, such as laser welding of aluminum, requires a high power density. The laser can shine through the opposing openings through the base body, thus avoiding damage to the base body.

[0020] In one embodiment of the invention, the prefabricated cable can further comprise a cover for each of the openings for closing the respective opening, which closes the respective opening in a liquid-tight manner, wherein the covers can be connected to the base body in a material-to-material manner to tightly close the openings. The closure of the cover by means of a material-to-liquid connection to the base body can be designed as an additional feature. The openings of the base body can be tightly closed in order to protect the entire system of the prefabricated cable from environmental influences. According to an exemplary embodiment, the covers can be connected to the openings of the base body by means of ultrasonic welding or laser welding. If, for example, ultrasonic welding is used to connect the cover to the base body, both parts, ieThe same material can be used for the lid and the base body, so that the investment costs can also be lower.

[0021] In one embodiment of the invention, the contact socket can further have a screw centered therein, which is provided for connecting the contact socket to a counterpart. For example, in a preferred embodiment, each of the contact sockets, ie the first and also the second contact socket, can each have a screw centered therein. Thus, the contact socket, which functions as a plug, can be connected to a plug, for example a part of a charging socket or a high-voltage storage device. According to this embodiment, a screw connection can be preferable to a pure plug connection, since the contact resistance is lower here and thus a better electrically conductive connection can be provided.

[0022] In one embodiment of the invention, the first contact socket, which is connected to the first electrically conductive plate-shaped element, and the second contact socket, which is connected to the second electrically conductive plate-shaped element, can be completely surrounded by the base body. In particular, the base body can be produced by means of an injection molding process, so that in this injection molding process the respective contact sockets and the respective electrically conductive plate-shaped elements can be completely overmolded in a single injection molding process step. Because the contact sockets are overmolded together, i.e. simultaneously, the position of the electrical interfaces relative to one another can have very close tolerances and their precise arrangement relative to one another can be ensured. Furthermore, this simplifies the production process for the prefabricated cable.By using a base body, the number of components to be used can be reduced, which also results in a reduction in costs.

[0023] In one embodiment of the invention, the first plate-shaped element and the second plate-shaped element can be formed from the same material as the two coaxially arranged conductors. If both the plate-shaped elements and the conductors of the cable are formed from the same material, a better material-fit connection can be created between these materials. In particular, a light metal is selected as the material, such as aluminum. This means that if the conductors of the cable are made of aluminum, the plate-shaped elements of the assembled cable are also made of aluminum. For example, the plate-shaped elements are made of the same aluminum alloy as the cable in order to enable a good welded connection; for example, they can be made of the following materials: EN AW-1050 or EN AW-1370.Selecting the same materials can reduce corrosion under adverse environmental conditions, so that electrical resistance in this connection remains as low as possible.

[0024] In one embodiment of the invention, the base body can further comprise a support geometry which is arranged in the base body and which can be configured to support the line when it is inserted into the base body. The support geometry is designed such that the line can be easily pushed in and centers itself. This simplifies insertion of the line into the base body and the line can be brought into the correct position in a targeted manner using the support geometry. Furthermore, the support geometry can be arranged on an inner side of a wall of the base body and extend inwards into the base body, with the line being inserted on an outer side of this wall of the base body.This design allows the cable to be guided within the base body by means of the support geometry and supported in its position so that the cable is brought into the correct position relative to the two plate-shaped elements.

[0025] Furthermore, the support geometry can include insertion chamfers for centering the cable in the base body. This ensures that the cable is guided to the correct position and centered in the base body when inserted. Particularly when the cable consists of an inner and an outer round conductor, which in simplified geometry can be described as a cylindrical shape, it is advantageous to provide insertion chamfers that also guide the inner conductor of the cable to the correct position for connection to the other elements of the pre-assembled cable.

[0026] According to one aspect of the invention, a method for assembling a cable, in particular for use in a motor vehicle, is described. The method comprises the following steps: providing the cable with an exposed, stripped cable end; providing a first contact socket and a second contact socket; arranging a first electrically conductive plate-shaped element and a second electrically conductive plate-shaped element such that the first electrically conductive plate-shaped element extends between the first contact socket and the stripped cable end, and the second electrically conductive plate-shaped element extends between the second contact socket and the stripped cable end; connecting the first contact socket and one side of the first plate-shaped element; connecting the second contact socket and one side of the second plate-shaped element;Enclosing the outer side of the contact sockets, the first and second plate-shaped elements and the cable with a plastic material to form a base body, materially connecting another side of the first plate-shaped element to the stripped cable end, materially connecting another side of the second plate-shaped element to the stripped cable end.

[0027] In this method, the steps are not limited to the above-mentioned order of steps, but the above-mentioned order represents a preferred embodiment of the method. However, further method steps may be added or other method steps may be removed, or existing method steps may be subdivided.

[0028] In other words, the method can proceed as follows, for example. The electrically conductive components, i.e. the line, the first contact socket, the second contact socket and the electrically conductive plate-shaped elements are provided and arranged in such a way that the electrically conductive plate-shaped elements can provide contact between the respective contact socket and the respective conductor of the line. Each of the contact sockets is connected to one side of a plate-shaped element. After the contact sockets have been aligned and connected to the plate-shaped elements, they are enclosed by the plate-shaped elements by forming the base body. The other side of the respective plate-shaped elements is then materially connected to the stripped line end, i.e. to the respective conductor of the line.

[0029] In one embodiment of the invention, the stripped cable end can be connected to the first electrically conductive plate-shaped element and the stripped cable end can be connected to the second electrically conductive plate-shaped element by laser welding. An ideal connection of soft metals, in particular aluminum as a conductor, to other electrically conductive metals is possible with a material-to-material connection. Aluminum forms an oxide layer on the surface, which would lead to high electrical resistance if the connection were made without force under unfavorable ambient conditions. However, the challenge with welding is that the heat introduced can damage the internal insulation of the conductors, in particular of the coaxial cable. The melting point of aluminum, at 660 °C, is many times higher than the maximum permissible temperature of common insulator materials, which is approximately 120-100 °C.By using laser welding of aluminum, the aluminum is only melted very locally, allowing the insulation of the conductors to withstand this stress. A robust welding process is essential to ensure the operational reliability of the cable. Depending on the cable length and geometry, large forces can act on the weld seams, necessitating a precise connection between the parts to be welded. This can be achieved using laser welding.

[0030] Furthermore, according to one embodiment of the invention, the connection of the first contact socket to the first electrically conductive plate-shaped element and the connection of the second contact socket to the second electrically conductive plate-shaped element can be carried out by means of friction welding.

[0031] In one embodiment of the invention, the step of enclosing the outer side of the contact sockets, the first and second plate-shaped elements, and the line can comprise enclosing them by injection molding. This allows the contact elements, like the contact sockets, to be overmolded with insulating material in a single manufacturing step. Compared to the assembly of previous lines, steps in the injection molding process can thus be eliminated. By overmold-ing all components, a secure and permanent alignment of the components at the corresponding component position on the configured line can be ensured.

[0032] Further features, advantages and possible applications of the invention will become apparent from the following description of advantageous embodiments and the accompanying figures. Short character description

[0033] An advantageous embodiment of the invention is explained below with reference to the accompanying figures. They show: Figure 1 illustrates a portion of a pre-assembled cable according to an exemplary embodiment of the invention. Figure 2 illustrates a pre-assembled cable according to an exemplary embodiment of the invention. Figure 3 illustrates a sectional view of the assembled cable according to an exemplary embodiment of the invention from Figure 2 .

[0034] The figures are merely schematic representations and serve only to illustrate the invention. Identical or equivalent elements are provided with the same reference numerals throughout. Detailed description

[0035] Fig. 1shows part of a prefabricated cable 100 according to an exemplary embodiment of the invention. The cable 106, here indicated by a dashed arrow and not shown in detail, has at least two coaxially arranged conductors 316, 318 with a stripped cable end. Furthermore, the prefabricated cable 100 has: a base body 101, in which the cable 106 with the stripped cable end is arranged, at least one first electrically conductive plate-shaped element 104, and a second electrically conductive plate-shaped element 105. In the base body 101, at least one first electrically conductive contact socket 102 and a second electrically conductive contact socket 103 are arranged next to one another. In particular, the two contact sockets 102 and 103 are arranged next to one another with their respective centers on the same imaginary straight line.The first electrically conductive plate-shaped element 104 extends between the first contact socket 102 and the stripped line end of the line 106 (not shown here), wherein one side of the first plate-shaped element 104 is connected to the first contact socket 102 and another side of the first plate-shaped element 104 opposite the first side is integrally connected to the stripped line end. The second electrically conductive plate-shaped element 105 extends between the second contact socket 103 and the stripped line end of the line 106, wherein one side of the second plate-shaped element 105 is connected to the second contact socket 103 and another side of the second plate-shaped element 105 opposite the first side is integrally connected to the stripped line end.

[0036] The base body 101 can extend over two contiguous or connected parts. In other words, the base body 101 can be divided into two opposing parts, one part having the contact sockets 102, 103 and the other part having the line 106. Both parts of the base body 101 are linked by the plate-shaped elements 104, 105 enclosed by the base body 101. The plate-shaped elements on the side of the line 106 are exposed in this part of the base body 101 so that they can be connected to the line 106. The first contact socket 102 and the first electrically conductive plate-shaped element 104 are connected to one another in a materially bonded manner, in particular by friction welding. The second contact socket 103 and the second electrically conductive plate-shaped element 105 are also connected to one another in a materially bonded manner, in particular by friction welding.The first contact socket 102, which is connected to the first electrically conductive plate-shaped element 104, and the second contact socket 103, which is connected to the second electrically conductive plate-shaped element 105, are completely surrounded by the base body 101. In other words, the outer surfaces of the contact sockets 102, 103 and the sides of the plate-shaped elements 104, 105, which abut the contact sockets 102, 103 (and are electrically conductively connected thereto), are surrounded by the base body 101. In particular, these parts are enclosed by the base body 101 by means of injection molding.

[0037] The plate-shaped elements 104, 105 extend at a distance from one another on the same plane from the respective contact socket 102, 103 to the stripped line end of the line 106 in the base body 101. In other words, the plate-shaped elements 104, 105 are arranged at the same height and extend together at the same height on a plane between the contact sockets 102, 103 and the line 106 (or the stripped line end).

[0038] As in the Figure 1 As can be seen, the base body 101 has two opposing openings 107 on the side on which the line 106 is arranged. In the present Figure 1The base body 101 is shown from above, which is why only the upper opening 107 is visible. The openings 107 are provided to enable access to the stripped cable end, in particular for materially bonding. Furthermore, the base body 101 has a support geometry 108, which is arranged in the base body 101 and is configured to support the cable 106 during insertion into the base body 101. The support geometry 108 is arranged on an inner side of a wall 109 of the base body 101 and extends inward into the base body 101, wherein the cable 106 is inserted on an outer side of this wall 107 of the base body 101. Furthermore, the support geometry 108 has insertion bevels 110 for centering the cable 106 in the base body 101.

[0039] Fig. 2shows a pre-assembled cable 100 according to an exemplary embodiment of the invention. The pre-assembled cable 100 has the same elements as already described with Figure 1 were described. Furthermore, Figure 2 , the cable 206 is integrated into the base body. The cable 206 is sealed by means of a seal 214, in particular a single-wire seal 214. This seal 214 can be pushed onto the cable 206 before it is inserted into the base body 101.

[0040] Furthermore, a cover, a service cover, 213 is provided in the base body 101. This service cover 213 is connected to the base body 101 by a folding hinge on one side and by a screw connection on the other side. The folding hinge is in the Figure 1 better shown on the left side next to the contact sockets 102, 103. The screw connection of the service cover 213 is in Figure 2now shown on the left side next to the contact sockets 102, 103. Compared to Figure 1 the pre-assembled cable 100 is made of Figure 2 shown rotated along the extension direction of the plate-shaped elements 104, 105. Other locking mechanisms, such as those based on plastic clips, can also be used. In the event of a defect in the cable 206 or after the product life during recycling, the pre-assembled cable 100 can be disassembled by the service cover 213 allowing access to the individual components of the pre-assembled cable 100. Furthermore, Figure 2, for each of the openings 107, a respective cover 212 is shown for closing the respective opening 107, which closes the respective opening 107 in a liquid-tight manner. The covers 212 can be connected to the base body 101 in a material-to-material manner to tightly close the openings 107. Furthermore, each of the contact sockets 102, 103 has a screw 211 centered therein, which is intended to be able to connect the respective contact socket 102, 103 to a counterpart.

[0041] Fig. 3 shows a sectional view AA of the assembled cable 100 according to an exemplary embodiment of the invention from Figure 2 . The pre-assembled cable made of Figure 3 also has all the features that are already associated with the previous Figures 1 and 2 were described. From the Figure 3The two opposite openings 107a and 107b with the associated covers 212a and 212b of the base body on the side of the cable 206 can now be removed. The extension of the plate-shaped element 104 from the exposed end of the cable 206 to the contact socket 102 is also visible. Furthermore, it is clear that the cable 206 is stripped inside the base body. This means that the inner conductor 316 is exposed and is here in contact with the plate-shaped element 104 and thus electrically connected to the contact socket 102. The inner insulation 317 is also exposed, as is the outer conductor 318, which is connected to the other plate-shaped element 105 and the other contact socket 103 (here in Figure 3 (not visible due to the sectional view). The outer insulation 319, which marks the beginning of the stripped cable end, is also shown here.

[0042] Both plate-shaped elements 104, 105 are connected to a flat surface on the associated conductor 316, 318 to which they are each connected. In the present embodiment, this is preferably done with a short surface on one edge of the plate-shaped elements 104, 105, although this can also be a large surface, such as the top or bottom of the plate-shaped elements 104, 105. A short surface has the advantage over the latter that more space remains for assembly activities, such as welding.The connection between a plate-shaped element 104, 105 and the conductor 316, 318 via a flat surface of the respective plate-shaped element 104, 105 also enables a simple formation of a weld seam or a similar seam serving the connection, such as a solder seam, if the conductor 316, 318 is a round conductor and the connection to the flat surface is tangential, since a natural gusset then remains between these two assemblies, which can be used to form the connection if necessary.

[0043] The first contact socket 102 has a first connection surface 315 and the second contact socket 103 also has, but not visible here, a second connection surface, which first and second connection surfaces 315 are aligned in the same direction, wherein the first and second connection surfaces 315 of the contact sockets 102, 103 are arranged next to one another on one plane.

[0044] Although the invention has been illustrated and described in detail in the drawings and the foregoing description, these drawings and descriptions are to be considered as illustrative or exemplary in nature and not restrictive. The invention is not limited to the disclosed embodiments. Other variations of the disclosed embodiments may be understood and practiced by those skilled in the art to practice the claimed invention, based on the drawings, the disclosure, and the dependent claims.

[0045] Additionally, it should be noted that "having" and "comprising" do not exclude other elements or steps, and "a" or "an" does not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limitations. LIST OF REFERENCE SYMBOLS

[0046] 100 pre-assembled cable 101 base body 102 first contact socket 103 second contact socket 104 first plate-shaped element 105 second plate-shaped element 106, 206 cable 107 opening 108 support geometry 109 wall of the base body 110 insertion chamfers 211 screw 212 cover 213 service cover 214 seal 315 connection surface 316 inner conductor 317 inner insulation 318 outer conductor 319 outer insulation

Claims

1. A prefabricated cable (100), comprising a cable having at least two coaxially arranged conductors with a stripped cable end, a base body in which the cable with the stripped cable end is arranged, at least one first electrically conductive plate-shaped element and a second electrically conductive plate-shaped element, wherein at least one first electrically conductive contact socket and a second electrically conductive contact socket are arranged next to one another in the base body, wherein the first electrically conductive plate-shaped element extends between the first contact socket and the stripped cable end, wherein one side of the first plate-shaped element is connected to the first contact socket and another side of the first plate-shaped element opposite the first side is integrally connected to the stripped cable end, specifically to a first of the two coaxially arranged conductors,wherein the second electrically conductive plate-shaped element extends between the second contact socket and the stripped cable end, wherein one side of the second plate-shaped element is connected to the second contact socket and another side of the second plate-shaped element opposite the first side is integrally connected to the stripped cable end, specifically to a second of the two coaxially arranged conductors, characterized by (i) that the two coaxially arranged conductors are rigid conductors and; and / or (ii) that the base body has two opposing openings on the side on which the cable is arranged, which are provided to allow access to the stripped cable ends; and / or (iii) that the base body further comprises a support geometry which is arranged in the base body and is configured to support the line when inserted into the base body.

2. The prefabricated cable according to claim 1, wherein the first contact socket has a first connection surface and the second contact socket has a second connection surface, which first and second connection surfaces are aligned in the same direction, wherein the first and second connection surfaces of the contact sockets are arranged next to one another on a plane and / or wherein the plate-shaped elements extend at a distance from one another on a same plane from the contact socket to the stripped cable end.

3. The prefabricated cable according to one of the preceding claims 1 or 2, wherein the first contact socket and the first electrically conductive plate-shaped element are connected to one another in a materially bonded manner, in particular by friction welding, wherein the second contact socket and the second electrically conductive plate-shaped element are connected to one another in a materially bonded manner, in particular by friction welding.

4. The prefabricated cable according to one of the preceding claims, wherein the openings are provided to allow access to the stripped cable ends, in particular for materially bonding.

5. The prefabricated cable according to claim 4, further comprising a cover for each of the openings for closing the respective opening, which cover closes the respective opening in a liquid-tight manner, wherein the covers can be connected to the base body in a materially bonded manner for tightly closing the openings.

6. The cable assembly according to any one of the preceding claims, wherein at least one of the plate-shaped elements is connected to the conductor by a flat surface on the conductor connected to this plate-shaped element.

7. The prefabricated cable according to one of the preceding claims, wherein the first contact socket, which is connected to the first electrically conductive plate-shaped element, and the second contact socket, which is connected to the second electrically conductive plate-shaped element, are completely surrounded by the base body.

8. The cable assembly according to any one of the preceding claims, wherein the first plate-shaped element and the second plate-shaped element are formed from the same material as the two coaxially arranged conductors.

9. The prefabricated cable according to one of the preceding claims, wherein the support geometry is arranged on an inner side of a wall of the base body and extends inwardly into the base body, wherein the cable is inserted on an outer side of this wall of the base body, wherein the support geometry has insertion bevels for centering the cable in the base body.

10. A method for assembling a cable, comprising the following steps: providing the cable with an exposed stripped cable end, providing a first contact socket and a second contact socket, arranging a first electrically conductive plate-shaped element and a second electrically conductive plate-shaped element such that the first electrically conductive plate-shaped element extends between the first contact socket and the stripped cable end, and that the second electrically conductive plate-shaped element extends between the second contact socket and the stripped cable end, connecting the first contact socket and one side of the first plate-shaped element, connecting the second contact socket and one side of the second plate-shaped element, enclosing the outer side of the contact sockets,the first and second plate-shaped elements and the cable with a plastic material to form a base body, materially connecting another side of the first plate-shaped element to the stripped cable end, materially connecting another side of the second plate-shaped element to the stripped cable end, , characterized by (i) that the two coaxially arranged conductors (316, 318) are rigid conductors and; and / or (ii) that the base body has two opposing openings on the side on which the cable is arranged, which are provided to allow access to the stripped cable ends; and / or (iii) that the base body further comprises a support geometry which is arranged in the base body and is configured to support the line when inserted into the base body.

11. The method according to the preceding claim 10, wherein the connecting of the stripped cable end to the first electrically conductive plate-shaped element and the connecting of the stripped cable end to the second electrically conductive plate-shaped element is carried out by means of laser welding, wherein the connecting of the first contact socket to the first electrically conductive plate-shaped element and the connecting of the second contact socket to the second electrically conductive plate-shaped element is carried out by means of friction welding.

12. The method according to any one of the preceding claims 10 or 11, wherein the step of enclosing the outer side of the contact sockets, the first and second plate-shaped elements and the lead comprises enclosing by injection molding.

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