Contact connection for an electrical cable

Abstract

An electrical system (200), comprising the following elements: an electrical line (115) with a longitudinal axis (210); wherein the line (115) comprises at least one individual line (225) and a shield (220) which surrounds the at least one individual line (225); wherein the at least one individual line (225) extends at the end of the shield (220) through a sleeve (230) which is electrically conductively connected to the shield (220) on a circumference around the longitudinal axis (210); wherein a contact (255) is guided to the sleeve (230) offset from the longitudinal axis (210), wherein the contact (255) extends beyond one end of the shield (220); wherein the sleeve (230) comprises a recess (245) through which the contact (255) is guided.

Description

[0001] The present invention relates to the electrical connection of a cable. In particular, the invention relates to the connection of a cable to a connector.

[0002] An electrical cable can be connected to a device using a connector. If the cable transmits high-frequency signals, it typically includes a shield, which can be an electrically conductive foil or wire mesh surrounding individual wires. At the transition between the cable and the device or the connector, both the individual wires and the shield must be electrically connected.

[0003] High-quality connectors, for example, extend the shielding through a metal housing, which is effective in all directions. However, such connectors are expensive and can require extensive assembly. In practice, a simple solution is often used, such as twisting one end section of the shield to form another conductor that can run parallel to the individual conductors. However, this can severely impair the shielding effect; in the worst case, the end section can even act as an antenna. Coupling or decoupling of signals in this area can then hardly be prevented.

[0004] DE 10 2010 052 627 relates to a cable connection. EP 0 687 037 A1 shows a cable with a connector. US 7 228 625 proposes a technique for connecting a cable. US 10 205 268 relates to an electrical connector for an electrical cable. DE 10 2012 220 197 A1 shows a grounding device for the electrically conductive sheath of a cable and a method for attaching the grounding device. DE 10 2020 133 781 A1 shows a strain relief for a connector arranged on a shielded cable. DE 84 23 020 U1 shows a power connection terminal.

[0005] One object of the invention is to provide an improved technology for connecting an electrical line. The invention achieves this object by means of the subject matter of the independent claims. Subclaims specify preferred embodiments.

[0006] An electrical system comprises an electrical line with a longitudinal axis; wherein the line comprises at least one individual line and a shield surrounding the at least one individual line; wherein the at least one individual line extends at the end of the line through a sleeve which is electrically conductively connected to the shield on a circumference around the longitudinal axis. A contact is led to the sleeve offset from the longitudinal axis; wherein the contact extends beyond one end of the shield; wherein the sleeve comprises a recess through which the contact is led.

[0007] It is generally preferred that the electrical system is configured for use on board a motor vehicle. The system may be exposed to mechanical vibrations, a wide temperature range, and fluctuating humidity. Furthermore, aggressive substances such as oil, gasoline, or acid may affect the system. It is further preferred that the system be configured to implement a wired data connection. For this purpose, the line may comprise two or more individual lines over which data can be electrically transmitted. The data connection may have a wide bandwidth, and the frequencies of electrical currents on the individual lines may be considerable. The system is preferably configured to ensure good electromagnetic compatibility and high resistance to radiation, even at transmission frequencies of 1 MHz or more.

[0008] The sleeve is preferably electrically conductive and can form a defined termination for the shielding of the individual wires. The contact can extend in the same direction as the individual wires beyond one end of the shielding. This improves the connection between the individual wires and the contact to another element, such as a plug connection. The contact can run essentially straight from the shielding, so that neither a minimum bending radius of the contact nor potential mechanical stress poses a problem in guiding the contact in the same direction as the individual wires.

[0009] A contact that extends an electrical connection from a shield off-center is sometimes referred to as a "pigtail." In contrast to many known designs, in which the pigtail initially extends from the shield toward the cable, i.e., in a direction opposite to the end of the shield, the proposed contact continues to connect the shield in the direction in which the cable extends. The contact extends toward the end of the cable and, if necessary, beyond.

[0010] The contact can be implemented in different ways. In a first variant, the contact comprises a twisted section of the shielding. In a known manner, the shielding can be removed from the individual wires and twisted together to create another individual wire. The twisted individual wire is no longer wrapped around the individual wires in a tube-like manner, meaning that it no longer forms part of the shielding. The additional individual wire can be essentially the same length as the other individual wires, making it easier to connect all the individual wires, for example with an electrical plug connection. The additional individual wire is captively connected to the wire, making it easier to assemble the electrical system.

[0011] In a second variant, the shielding contact comprises a separate individual wire. The individual wire can be mounted individually and electrically connected to the shielding only later. This can simplify the attachment of the sleeve to the electrical wire. Preparing the end section of the shield can be less labor-intensive.

[0012] In one embodiment, the separate individual line is already connected to the sleeve before the sleeve is pushed onto the end of the electrical line. The sleeve can form a separately handleable unit together with the separate individual line, and the separate individual line can be captively attached to the sleeve. Alternatively, the separate individual line can be designed separately from the sleeve. In this case, the contact designed as an individual line can be attached to the electrical system in a separate processing step. For example, the sleeve can be pushed onto the end of the line independently of the individual line, and the individual line can only be attached to the sleeve afterwards. This can facilitate the correct arrangement and electrical connection of elements of the electrical system.

[0013] The separate individual cable can be designed in different ways. For example, an insulated or uninsulated individual cable can be used, the individual cable can comprise only one or more cores, and the cross-section of the individual cable can be selected independently of the mechanical properties of the shield. The individual cable can have a predetermined length, and in some embodiments, an end of the individual cable remote from the electrical system can be mechanically and / or electrically connected before the other end is connected in the region of the sleeve.

[0014] A counter sleeve can be provided for annular electrical contact between the sleeve and the shield. The shield can be located radially between the sleeve and the counter sleeve. The sleeve and preferably also the counter sleeve can be manufactured from an electrically conductive material. The sleeves can each comprise metal and can be manufactured, for example, from a tube or sheet metal. More preferably, the shield rests against both sleeves in an electrically conductive manner and on a circumference around the longitudinal axis. In the region of a contact section of the shield, the sleeve and / or the counter sleeve can each have a substantially cylindrical section.

[0015] It is further preferred that the sleeve and the counter sleeve are radially clamped against one another. For this purpose, the sleeves can be crimped, pressed, or shrunk against one another, for example. The crimping can act essentially uniformly around the circumference of a sleeve or at one or more points on a circumference offset about the longitudinal axis. In a further embodiment, the sleeves are slightly conical in the region where they rest on the shield and can be pushed axially against one another in order to clamp the shield between them. A relative axial position of the sleeves can be secured, for example, by caulking. Although a force-fitting or form-fitting connection of the sleeve to the shield is preferred, a material-to-material connection can also be selected, for example by soldering or welding. A combined connection technique is also possible.

[0016] In a first variant, the sleeve is located radially outside the shield, and the counter sleeve is located radially inside the shield. The sleeve can include a through-hole located radially outside the longitudinal axis. The contact for the shield can be routed through the through-hole. The through-hole can be located in a section of the sleeve that extends radially, allowing the contact to be routed in the axial direction.

[0017] In a second variant, the sleeve is located radially inside the shield and the counter sleeve is located radially outside the shield. The sleeve is preferably hollow-cylindrical and is not conical or only slightly conical. A recess in the sleeve for contacting may therefore not be necessary. If the sleeve includes a conical or radially extending section, a recess for contacting can be incorporated.

[0018] If the contact runs through a recess in a sleeve, the recess is preferably provided in a radially extending or conical section of the sleeve. In particular, the sleeve can have a conical section toward the end of the cable. This section can extend radially toward the individual wires of the cable. The recess can be located in the conically tapered section.

[0019] In a further preferred embodiment, a plurality of contacts are provided on the sleeve, offset around the longitudinal axis. The contacts are preferably located outside the longitudinal axis and can be offset around the longitudinal axis on a circumference. A sleeve can comprise a plurality of recesses to allow multiple contacts to pass through it. The recesses are preferably regularly offset from one another around the longitudinal axis.

[0020] By using multiple contacts, a current divider can be created, allowing a current flowing through the shield to be distributed more effectively radially along the longitudinal axis of the cable. This can reduce the electric or magnetic field caused by a current flowing through a contact. Outgoing interference or susceptibility to incoming interference can be reduced.

[0021] It is generally preferred for the shield to comprise a wire mesh. The wire mesh can, for example, be axially compressed to increase its radius. A sleeve or counter sleeve can thus be easily attached to the radial inside of the shield. A connection of an electrical contact to the wire mesh can be easily established. Alternatively, the shield can also comprise, for example, an electrically conductive foil or a thin sheet.

[0022] To protect the transition between the cable and a device or an electrical connector, a sealing sleeve can be provided through which the cable passes. The sealing sleeve can include a through-hole radially offset from the longitudinal axis, through which a contact for the sleeve is passed. The sealing sleeve is made of a waterproof and preferably elastic material such as plastic, rubber, or silicone. The sealing sleeve can keep dust, water, oil, or other liquids away from the cable connection. This ensures that the connection is permanently stable and reliable, even under demanding operating conditions.

[0023] In a further embodiment, a sealing compound can be provided in the region of the end of the line. In particular, the sealing compound can be introduced into a space within the sealing sleeve. More preferably, at least part of the sealing compound is contained within the sleeve. The sealing compound can extend to the individual lines and serve to protect them against environmental influences.

[0024] The system may further comprise a connector; wherein the at least one individual line may be electrically connected to an associated contact of the connector. A contact of the shield may be connected to another contact of the connector. The connector may be provided for the detachable electrical and mechanical connection of the line to a control unit, a sensor, another line, or another device. The connector is preferably fully shielded and may comprise a type of cup into which one end of the line can be inserted. The connector may comprise one or more plugs and / or one or more sockets.

[0025] According to a further aspect of the present invention, a method for connecting an electrical line with a longitudinal axis, wherein the line comprises at least one individual line and a shield which surrounds the at least one individual line, comprises the following steps: exposing the shield at one end of the line; guiding the at least one individual line through a sleeve such that the sleeve is electrically conductively connected to the shield on a circumference around the longitudinal axis; and producing a contact of the sleeve which is offset from the longitudinal axis, wherein the contact extends beyond the end of the shield; wherein the sleeve comprises a recess through which the contact is guided.

[0026] The method can be used to easily and reliably manufacture a system as described herein. Parts of the method can be performed manually or mechanically.

[0027] The method may further comprise electrically connecting the at least one individual wire to a contact of a connector; and connecting the contact to another contact of the connector. The end of the wire may be inserted into the connector, resulting in a good connection between the connector and the wire. The transition may be well shielded against electromagnetic radiation or fields.

[0028] The method may include attaching a mating sleeve such that the shielding rests radially between the sleeve and the mating sleeve on an axial section. The shielding may rest against the sleeve in an electrically conductive manner on a circumference around the longitudinal axis. A

[0029] A clamp fit can be created that can clamp the shielding between the sleeves.

[0030] In a particularly preferred embodiment, the sleeves can be pressed against each other. The pressing can be performed in a radial direction, for example, by crimping. In one embodiment, axial pressing can also be performed if at least one of the sleeves has a conically tapered section.

[0031] In a further development of the method, a sealing sleeve can be pushed onto the end of the cable and the sleeve, so that the shielding contact runs through a through-hole in the sealing sleeve that is radially offset from the longitudinal axis. The sealing sleeve can comprise an elastic and preferably soft material such as plastic or rubber, which can conform to the cable, the individual wires, or the electrical contact. The sealing sleeve can be heated to shrink it and / or fuse it to the end section of the cable. This creates a material-to-material bond that can protect against environmental influences.

[0032] In a further embodiment, the method comprises introducing a sealing compound into a space between the at least one individual line and the sealing sleeve. The sealing compound can be introduced before heating the sealing sleeve. The sealing compound is preferably liquid or pasty upon application and can subsequently cure or crosslink. The cured sealing compound can have a predetermined elasticity.

[0033] The invention will now be described in more detail with reference to the accompanying figures, in which: Fig. 1 a system; Fig. 2 an electrical connection in a first variant; Fig. 3 an electrical connection in a second variant; Fig. 4 a cross-section through an electrical connection; Fig. 5 an axial view of an electrical connection; and Fig. 6 shows a flow diagram of a procedure.

[0034] Fig. 1 shows a system 100 configured to connect a first device 105 to a second device 110 via an electrical line 115. The first device 105 may, for example, comprise a sensor, and the second device 110 may comprise a control unit.

[0035] The electrical line 115 comprises one or more individual lines and a shield. A technique proposed herein can be applied to one or both ends of the electrical line 115. Preferably, the connections of the electrical line 115 to both devices 105, 110 are matched to each other such that their impedances are substantially equal, thus preventing resonant oscillation (ringing).

[0036] In the presentation of Fig. 1, the shield 220 on the side of the first device 105 can be connected either to ground or to a shield of the first device 105. The following explanations of a connection of the line 115 to a device 105, 110 preferably refer to the second device 110 by way of example, although the invention is not limited to this device 110.

[0037] An electrical resistor 120, an inductance 125, and a capacitance 130 connected to ground are shown between line 115 and second device 110 in the manner of an equivalent circuit. The resistor 120 and the inductance 125 together form a complex resistance (impedance).

[0038] A technique proposed herein enables a good adaptation and a high-frequency-tight connection between the line 115 and the device 110. For simplification, it is assumed that the connection to the device 110 is made by means of an electrical plug connection, which can lead, for example, to another line or a circuit board of the second device 110.

[0039] Fig. Figure 2 shows an electrical connection 200, which can be provided in particular between a cable 115 and a device 110. Representing the device 110 is a plug connection 205, which can belong to or lead to the device 110.

[0040] The line 115 extends along a longitudinal axis 210 and is typically flexible so that the longitudinal axis 210 can follow a curvature of the line 115. For clarity, it is assumed that the line 115 runs straight in the region of its illustrated end, so that the longitudinal axis 210 also runs straight.

[0041] Radially outward, the cable 115 has a sheath 215, which is typically made of a plastic, for example, PVC. Provided within the sheath 215 is a shield 220, which can extend radially symmetrically to the longitudinal axis 210 in the manner of a hose or cylinder. The shield 220 is electrically conductive and can be implemented as a wire mesh. Additionally or alternatively, a further shield in the form of a thin sheet or an electrically conductive foil can be provided. Optionally, a further layer is provided radially inside and / or radially outside the shield 220, which can serve as electrical insulation or mechanical protection.

[0042] Within the shield 220, one or more individual wires 225 extend along the longitudinal axis 210. Several individual wires 225 can be twisted together or in pairs. An individual wire 225 is typically insulated radially and can be designed as a single wire or as a stranded wire with multiple wires. Insulation is typically achieved by sheathing with plastic.

[0043] For connecting the line 115, a sleeve 230 is proposed, which, in the illustrated embodiment, has a cylindrical section 235 and an axially adjoining conically tapered section 240. A recess 245 is provided in the conically tapered section 240, which is radially offset from the longitudinal axis 210. The recess 245 is preferably designed as a through-hole and can be located at the same height as the shield 220 in the radial direction.

[0044] A counter sleeve 250 is mounted radially within the cylindrical portion 235 of the sleeve 230, so that a portion of the shield 220 lies radially between the counter sleeve 250 and the sleeve 230. At least the sleeve 230, and preferably also the counter sleeve 250, is designed to be electrically conductive. The sleeves 230, 250 can be radially pressed against one another to mechanically and electrically connect the shield 220 between them.

[0045] For the electrical connection of the sleeve 230, in the illustrated embodiment, part of the shielding 220 is guided through the recess 245. The shielding 220 can comprise a plurality of individual wires that can be electrically and / or mechanically connected to one another in order to be guided through the recess 245 in an improved manner. In one embodiment, the individual wires are twisted together. The individual wires can also be inserted into a sleeve and crimped together, for example. In yet another embodiment, the individual wires can be soldered together. Various of these possibilities can be combined with one another. For example, a contact 255 can be realized in a first embodiment, which can be electrically and / or mechanically connected to an associated contact of the plug connection 205. The individual lines 225 can be connected to associated contacts of the plug connection 205 in a similar manner.

[0046] Fig. Figure 3 shows a second variant of the electrical connection 200. The illustration is based on the Fig. 2, and functionally identical elements are designated by the same reference numerals. It should be noted that differing features or elements may differ between the embodiments of the Fig. 2 and Fig. 3 are transferable.

[0047] Compared to the embodiment of Fig. 2 are in the embodiment of Fig. 3 radial positions of sleeves 230 and 250 are interchanged. Sleeve 230 lies radially inside counter sleeve 250. As before, an end section of shield 220 is arranged between sleeves 230 and 250. Here, too, sleeves 230, 250 can be mechanically or electrically secured to one another, in particular by radial compression. The end section of shield 220 can be clamped radially between sleeve 230 and counter sleeve 250. The tapered section 240 of sleeve 230 is optional.

[0048] Another difference compared to the design of Fig. 2 relates to the type of contact 255. Here, a twisted section of the shield 220 is not brought out, but rather a dedicated individual line is provided to form the contact 255. The contact 255 can be inserted axially into the area of ​​the shield 220 or the sleeve 230. In one embodiment, the contact 255 is already electrically and / or mechanically connected to the sleeve 230 before the sleeve 230 is pushed onto the end of the line 115, for example by soldering, welding, riveting, crimping, or pressing.

[0049] Further preferably, a sealing sleeve 305 is provided, which is placed around an end region of the line 115 or the connection 200. The sealing sleeve 305 can comprise a through-hole 310 through which the contact 255 can be guided. The through-hole 310 is preferably arranged such that the contact 255 can be inserted axially in a straight line or parallel to the longitudinal axis 210 up to the shield 220 or the sleeve 230. The sealing sleeve 305 can comprise a radial or conically tapered section in which the through-hole 310 is located. Radially inner ends can abut the individual lines 225 here. Optionally, a sealing lip can be provided in this area, which can extend axially along the individual lines 225. The sealing sleeve 305 preferably extends axially up to the casing 215.

[0050] A sealing compound 315 can be applied to an area within the sealing sleeve 305 or within the sleeve 230 to protect the connection 200 and seal it against environmental influences. The sealing compound 315 is preferably applied in paste or liquid form before the sealing sleeve 305 is pushed onto the axial end of the line 115. The sealing compound 315 can then set, crosslink, or cure. Exemplary sealing compounds 315 include polyester, epoxy resin, acrylic, or silicone.

[0051] The sealing sleeve 305 can be designed to be heat-treated in order to conform to or bond to the connection 200. This allows a material-to-material connection to be realized, particularly in the area of ​​the sheath 215, a single line 225, or a contact 255. Of course, the sealing sleeve 305 and the sealing compound 315 are also suitable for the embodiment of Fig. 2 can be used.

[0052] Fig. Figure 4 shows a cross-section through an electrical connection 200 in schematic form. The section shown can be used in the embodiment of Fig. 2 in the region of the cylindrical section 235 of the sleeve 230.

[0053] It can be seen how the individual lines 225 extend along the longitudinal axis 210. The counter sleeve 250 is inserted radially outside the individual lines 225. The shield 220 is accommodated radially between the counter sleeve 250 and the sleeve 230. In the illustration of Fig. For ease of understanding, Figure 4 shows the distances between the shielding 220 and the sleeves 230, 250. The configuration shown can arise during assembly of the connection 200. To complete the connection 200, the sleeves 230, 250 can be clamped against each other so that they clamp the shielding 220 between them in the radial direction.

[0054] Fig. Figure 5 shows an axial view of an electrical connection 200 in one embodiment. According to the Fig. In the embodiment shown in Figure 2, it is assumed that the sleeve 230 is located radially outside the counter sleeve 250. A sealing sleeve 305 is not shown here.

[0055] The sleeve 230 comprises a conical section 240, onto which the observer is looking. The individual lines 225 extend toward the observer through an inner opening of the conical section 240. In the conical section 240, a plurality of recesses 245, each in the form of a through-hole, are provided, offset around the longitudinal axis 210, on a circumference. A contact 255 in the form of a twisted section of the shield 220 or a separate individual line can be guided through each recess 245. During assembly of the sleeve 230, a contact 255 in the form of a twisted section of the shield 220 can be guided through the recess 245 toward the observer. A contact 255 in the form of an individual line can also be guided through the recess 245 in the opposite direction.

[0056] Fig. 6 shows a flowchart of a method 600 for establishing a connection 200 of a cable 115 to a device 110, and in particular a plug connection 205. It should be noted that in different embodiments, not all of the steps mentioned below are required. Some steps can also be performed in a different order, as one skilled in the art will readily recognize.

[0057] In a step 605, the electrical line 115 can be cut to the appropriate length. The sheath 215 can be removed from an axial end section, exposing the shielding 220. In a step 610, the individual lines 225 can be cut to the appropriate length, if necessary. The individual lines 225 can be of the same or individual lengths.

[0058] In a step 615, in a variant which is described with reference to Fig. 2, the contact 255 can be formed by guiding a section of the shield 220 to the side and twisting it together. Different sections of the shield 220 can also be split and twisted separately into contacts 255.

[0059] In a step 620, the sleeve 230 and the counter sleeve 250 can be threaded onto the axial end of the prepared cable 115. Depending on the embodiment, the sleeve 230 can be positioned radially inward and the counter sleeve 250 radially outward relative to the shield 220, or vice versa. In some embodiments, an already formed contact 255 can be guided axially through the recess 245 of the sleeve 230 when it is pushed on.

[0060] In a step 625, a separately implemented contact 255 in an embodiment described herein with reference to Fig. 3, are guided axially from the outside through the recess 245 of the sleeve 230.

[0061] In a step 630, a press connection can be established between the sleeves 230 and 250. The press connection can be created in particular in the radial direction, for example, by crimping. In a further embodiment, in which at least one of the sleeves 230, 250 has a slightly conical section, the sleeves 230, 250 can also be pushed axially into one another so that they clamp the shield 220 between them.

[0062] In a step 635, sealing compound 315 can be introduced into an area at the axial end of the line 115. The sealing compound 315 is preferably applied as close as possible to the individual lines 225. Furthermore, a sealing sleeve 305 can be pushed onto the end of the line 115. The contact 255 and the individual lines 225 can be guided axially through corresponding recesses in the sealing sleeve 305. In a further embodiment, the contact 255 can also be guided through the sealing sleeve 305 before the sealing sleeve 305 is completely pushed onto the axial end of the line 115.

[0063] In a step 640, the sealing sleeve 305 and / or the sealing compound 315 can be thermally treated to form a materially bonded connection with elements of the line 115 or a sleeve 230, 250, or the contact 255. This can include shrinking the sealing sleeve 305. The thermal treatment can be carried out, for example, using infrared radiation, hot air, or an open flame.

[0064] Individual lines 225 can be electrically or mechanically connected to an associated contact of the device 110 or the plug connection 205. Similarly, a contact 255 can be connected to a contact of the second device 110 or the plug connection 205. The plug connection 205 can be slid over an axial end portion of the connection 200 in the manner of a cup. The cup can comprise a conductive material so that shielding can be ensured in this area. The cup is preferably electrically connected to the contact 255.

[0065] After executing the method 600, a high-frequency, durable connection 200 of a line 115 to a connector 205 or a device 110 can be established. The connection 200 can be understood as a connection system or system. In particular, the connection 200 can be used on board a motor vehicle, for example, in combination with an electrical data line 115. Reference symbol 100 systems 105 first device 110 second device 115 electrical line 120 resistance 125 Inductance 130 capacity 200 electrical connections 205 plug connection 210 Longitudinal axis 215 Coat 220 Shielding 225 single line 230 sleeve 235 cylindrical section 240 conical section 245 recess 250 counter sleeve 255 contacting, twisted section or single wire 305 sealing sleeve 310 through hole 315 Sealant 600 procedures 605 Cut cable to length, remove sheath, expose shielding 610 Cut single cable to length 615 If necessary, make contact 620 Thread the sleeve and counter sleeve 625 insert contact if necessary 630 Make a press connection between the sleeves 635 Apply sealing compound, attach sealing sleeve, thread contact through through hole 640 thermal shrink / seal

Claims

[1] An electrical system (200), comprising the following elements: an electrical line (115) with a longitudinal axis (210); wherein the line (115) comprises at least one individual line (225) and a shield (220) which surrounds the at least one individual line (225); wherein the at least one individual line (225) extends at the end of the shield (220) through a sleeve (230) which is electrically conductively connected to the shield (220) on a circumference around the longitudinal axis (210); wherein a contact (255) is guided to the sleeve (230) offset from the longitudinal axis (210), wherein the contact (255) extends beyond one end of the shield (220); wherein the sleeve (230) comprises a recess (245) through which the contact (255) is guided. [2] The system (200) of claim 1, wherein the contact (255) of the shield (220) comprises a separate single line (225). [3] The system (200) of any preceding claim, further comprising a mating sleeve (250); wherein the shield (220) is located radially between the sleeve (230) and a mating sleeve (250). [4] System (200) according to claim 3, wherein the sleeves (230) are radially clamped against each other. [5] System (200) according to one of claims 3 or 4, wherein the sleeve (230) is located radially outside and the counter sleeve (250) is located radially inside the shield (220). [6] System (200) according to one of claims 3 or 4, wherein the sleeve (230) is located radially inside and the counter sleeve (250) is located radially outside the shield (220). [7] System (200) according to one of the preceding claims, wherein the sleeve (230) has a tapered portion (240) towards the end of the conduit (115); wherein the recess lies in the tapered portion (240). [8] System (200) according to one of the preceding claims, wherein a plurality of contacts (255) of the sleeve (230) are provided which are offset about the longitudinal axis (210). [9] System (200) according to any one of the preceding claims, wherein the shield (220) comprises a wire mesh. [10] System (200) according to one of the preceding claims, further comprising a sealing sleeve (305) through which the line (115) extends; wherein the sealing sleeve (305) comprises a through-hole (310) offset radially to the longitudinal axis (210), through which a contact (255) of the sleeve (230) is guided. [11] System (200) according to claim 10, further comprising a sealing compound (315) which is introduced into a space within the sealing sleeve (305) in the region of the end of the line (115). [12] System (200) according to one of the preceding claims, further comprising a connector (205); wherein the at least one individual line is electrically connected to an associated contact of the connector (205); and wherein a contact (255) of the shield (220) is connected to a further contact of the connector (205). [13] Method (600) for connecting an electrical line (115) having a longitudinal axis (210); wherein the line (115) comprises at least one individual line (225) and a shield (220) surrounding the at least one individual line (225); wherein the method (600) comprises the following steps: exposing (605) the shield (220) at one end of the line (115); guiding (620) the at least one individual line (225) through a sleeve (230) such that the sleeve (230) is electrically conductively connected to the shield (220) on a circumference around the longitudinal axis (210); and producing (615, 625) a contact (255) of the sleeve (230) offset from the longitudinal axis (210), wherein the contact (255) extends beyond the end of the shield (220); wherein the sleeve (230) comprises a recess (245) through which the contact (255) is guided. [14] The method (600) of claim 13, further comprising electrically connecting the at least one individual line (225) to a contact of a connector (205); and connecting the contact (255) to another contact of the connector (205). [15] The method (600) of claim 13 or 14, further comprising attaching (620) a mating sleeve (250) such that the shield (220) bears radially on an axial portion between the sleeve (230) and the mating sleeve (250). [16] The method (600) of claim 15, further comprising pressing (630) the sleeves (230) against each other. [17] Method (600) according to one of claims 13 to 16, further comprising sliding (635) a sealing sleeve (305) onto the end of the line (115) and the sleeve (230) such that the contact (255) of the shield (220) passes through a through-hole of the sealing sleeve (305) that is offset radially to the longitudinal axis (210); and heating (640) the sealing sleeve (305). [18] The method (600) of claim 17, further comprising introducing (635) a sealing compound into a space between the at least one individual line (225) and the sealing sleeve (305).

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