EP3236480A1 - Cable and method for fabricating a cable and tape conduit element and method for producing a tape conduit element - Google Patents

Abstract

Cable (24), in particular data cable, which extends in a longitudinal direction and has a central element (26) which is surrounded, in particular enveloped, by a ribbon conductor element (10), wherein the ribbon conductor element (10) has two foil layers (2) and a number of lines (16), in particular wires, which are arranged between the film layers (2).

Description

The invention relates to a cable, in particular a data cable, a ribbon conductor element and in each case a method for the production thereof. The invention further relates to the use of such a data cable in a means of transport by land, water, space and / or air, e.g. Motor vehicle, aircraft, ships, boats, or hovercraft etc. In order to avoid unnecessary repetition, reference will be made below to the motor vehicle, whereby no restriction with regard to use in a means of transport should be made.

Due to the increasing communication technology also within motor vehicles, the demand for cost-effective data lines is growing also for higher transmission rates. In particular, the standard USB 3.1 is becoming increasingly popular.

Such standards place high demands on the data transmission channel, referred to as a "physical layer", which is used to ensure not only data packets over a number of data transmission paths, but additionally frequently also a power supply, transmission of possibly existing sensor currents and transmission of optical information.

In order to meet these requirements, common basic technologies can be combined. These basic technologies are typically not optimized for the described hybrid line constructions, but for a pure and independent functioning independent of other elements Shape. For example, in a USB 3.1 cable, four individual cores are usually stranded with four coaxial cables, the coaxial cables usually consisting of stranded inner conductors, a solid or foamed dielectric, an outer conductor designed as a foil screen, braided shield, spiral shield or a combination of the aforementioned elements is, as well as a coat. In addition, such a conduit comprises an overall screen for which the same exist as the aforementioned realization possibilities, as well as an overall casing, for mechanical and chemical reasons. A disadvantage of this solution is that neither the manufacturing technology, nor the sub-elements as such, are optimized for the task described above. In addition, the production and packaging is often expensive, which leads to higher costs.

Overall, therefore, often results in a conflict of interest in terms of the most cost-effective and compact as possible design and the least possible mutual interference of the individual lines and / or wires of the (data) cable.

Against this background, it is an object of the invention to specify a cable which is as compact and cost-effective as possible, in particular data cable, in which reliable data transmission is ensured even at high data rates, and in particular e.g. Effects of crosstalk and / or crosstalk are reduced as possible or avoided altogether. Furthermore, a stripline element is to be specified, which can be used in particular for the production of such a cable. Furthermore, production methods for both the cable and the stripline element are to be specified.

The object is achieved by a cable having the features according to claim 1 and by a stripline element having the features of claim 21. Furthermore, the object is achieved by the method with the features according to claim 18 and 22. Advantageous embodiments, developments and variants are the subject the dependent claims. The advantages and developments mentioned in connection with the cable also apply correspondingly to the stripline element as well as the methods and vice versa. Likewise apply in the Related to one of the methods mentioned advantages and developments mutatis mutandis, for the other method and vice versa.

The cable is designed in particular as a data cable. The cable extends in a longitudinal direction and has a central element which is surrounded, in particular enveloped, by a ribbon conductor element. The ribbon conductor element has two foil layers, i. Films on and a number of lines, in particular wires, which are arranged between the film layers.

Band-like line elements are for example in the US 8,946,558 B2 , of the DE 35 22 173 C1 and the US 4,596,897 described.

The advantages achieved by the invention are in particular that a particularly cost-effective and compact cable is formed, which is particularly suitable as a data line and in particular as a USB cable. In this case, a number of lines are housed in particular both in the central element and in the ribbon line, which serve in particular the data or signal transmission. As the central element is advantageously each previously available cable used, so that the stripline element in the sense of an upgrade allows easy extension of existing and possibly already standardized cable.

The ribbon conductor element is designed like a ribbon and is particularly thin, so that it builds up very low on the central element and leads to an only insignificantly increased space requirement. The thickness of the ribbon conductor element is determined in particular essentially by the diameter of the lines which are arranged between the foil layers. Between the lines, the film layers are in particular against each other and thus form a total of a flat band, in which the lines form corresponding elevations or ribs, which extend in particular in the longitudinal direction.

Another advantage is in particular that the cable is particularly easy to manufacture. Suitably, the central element and the ribbon conductor element become each provided as a semi-finished product and then placed around the band member around the central element, banded or wound. Due to the band-like configuration, the ribbon conductor element is particularly easy to work.

In this case, different types are preferably used as stripline elements, which are referred to below as stripline elements of coaxial, symmetrically shielded and symmetrically unshielded type. These are used in particular for hybrid lines with high or low data rates. A core idea is now, on the one hand, the optimization of the stripline elements and, on the other hand, the application-adapted use of the stripline elements for the realization and construction of hybrid line structures.

According to a preferred embodiment, the ribbon conductor element is designed as a coaxial ribbon conductor element with a number of coaxial elements. For this purpose, the film layers are formed as metal-laminated foil layers, each with a conductive side, and the lines are formed as an internal structure of a coaxial conductor, each with an inner conductor, which is surrounded by a dielectric. The conductive sides of the film layers are stacked on each other, i. facing each other and electrically connected to each other and thereby form a common outer conductor for the coaxial elements. A respective line then forms a coaxial element in combination with the conductive sides of the foil layers.

A conventional coaxial line generally consists of a particular solid or stranded inner conductor, which is surrounded by a solid or foamed dielectric, an outer conductor and a shell. The dielectric is typically made of the materials PP, PE, XPE or FEP. The outer conductor is in particular formed from a metal foil, a metal-clad plastic film, a wire mesh, a spiralization or a conductive combination of several of the aforementioned elements. The shell is formed at least galvanically separating, ie in particular insulating, and eg as a plastic film, extruded cable sheath or the like.

If a plurality of such coaxial conductors are positioned without the galvanically separating sleeve in such a way that the outer conductors are each electrically conductively connected to one another, a so-called coaxial ribbon cable is obtained.

With a view to a simple construction, the construction of the coaxial ribbon conductor element is now provided for constructing a plurality of parallel coaxial conductors whose outer conductors are at the same electrical potential. Here are - as described above - several internal structures of a coaxial conductor, each with an inner conductor and a dielectric, used in combination with a common outer conductor. The common outer conductor is in this case formed by interconnected conductive layers of the films. For this purpose, in particular metal-laminated films are used, which are in particular extended by an adhesion layer, so that the required mechanical stability is ensured. The particular advantage is to be seen in that it is possible to dispense with the formation of individual outer conductor and in particular is also omitted.

According to a preferred alternative, the ribbon conductor element is designed as a symmetrically-shielded ribbon conductor element. The film layers are formed as metal-laminated film layers, each with a conductive side. In each case two of the lines are combined to form a line pair, in particular twisted together or arranged to run parallel to each other. The conductive sides are only connected to each other outside the lines of a respective line pair, to form shielded cable pairs.

To form a symmetrically-shielded ribbon conductor element, a pair of leads is sandwiched between the conductive sides of the sheets so that the conductive sides form a pair shield for the pair of leads. In this case, the lines, in particular cores, are thus applied, ie arranged such that there is no separating screen element between them. The line pair forms a transmission pair via which preferably a symmetrical data transmission takes place.

Together with a suitable plug-side interconnection of the elements can be realized accordingly a symmetrical operation of a shielded pair, wherein the shielding takes place here by means of the film screen.

The pairs of lines are, in particular, unidirectional wires arranged parallel to one another. Alternatively, the veins of a pair are twisted together.

According to a further preferred alternative, the ribbon conductor element is designed as a symmetrically unshielded ribbon conductor element. The film layers are designed as non-conductive foil layers and the cables are unshielded. Preferably, in each case two of the lines are combined to form an unshielded line pair, in particular twisted together. The structure of the symmetrical-unshielded ribbon conductor element is comparable to the symmetrically-shielded ribbon conductor element, with the difference that no shielding takes place through the films, ie in particular no metal-laminated films are used. The particular insulating films are therefore only partially or alternatively adhesively bonded to each other over the entire surface. By appropriate adjustment of a lateral distance between the individual cable pairs, the crosstalk from data pair to data pair is then controlled in particular, which has to be considered for many applications.

The production of the stripline elements is effected by the particular parallel alignment of two depending on the embodiment metallkaschierter or nichtmetallkaschierter films, between which the individual lines, ie in particular wires or internal structures, in pairs or individually suitable sandwiched. The first two variants, ie a coaxial or a symmetrically-shielded ribbon conductor element, are films with a conductive layer, wherein the conductive layers face each other and are electrically connected to one another.

In addition to the leads, cores, internal structures and / or coaxial elements, advantageously a non-insulated conductor is also introduced, e.g. a wire, a strand or a metal thread, for electrically contacting the "sandwich screen", i. the two opposite metallized areas of the metal-clad foils, i. the two opposite conducting sides of the film layers.

By means of correspondingly shaped rolls, in general, these in particular three layers, i. the film layers and the lines, the ribbon element thermally or otherwise activated brought together. For example, the rollers are designed similar to a calender. In particular, the rolls also comprise devices which initiate the adhesive action of an adhesion layer, i. activate. For example, a thermal mechanism for heat activated adhesives is used. An adhesion layer is applied, for example, on one of the film layers or on both layers of film.

In these embodiments, due to the optionally conductive adhesive layer, ie adhesion layer, in the overlap region of the film layer applied from below and from above, no low-resistance electrically conductive connection between the metal layers lying below and above may be realized. This is preferably prevented by the fact that the particular polymeric carrier layer of the film layer, and / or the adhesive material, ie in particular adhesive, are not applied over the entire surface, but in a grid pattern. The adhesion layer is thus correspondingly not full-surface, but applied in a grid pattern. As a result, an electrically conductive connection is made in the overlap region of the common foil screen between the layers of the two film layers by a frictional connection. This results in particular in a reduction of the DC resistance of the outer conductor, which in particular also results in a reduction of the insertion loss, which is an important product feature for data transmission lines.

The stripline element is banded in an expedient embodiment around the central element, so wound. This ensures sufficient (bending) flexibility of the cable.

The central element preferably has itself several lines, in particular data lines or lines for power supplies. Preferably, both the lines of the central element and the lines of the ribbon conductor element are designed for data transmission. Alternatively, the central element is an optical transmission element or an element for transmitting fluids or, in the simplest case, a cavity. In this case, the cable is preferably formed as a waveguide, wherein the wall of the waveguide is formed by the ribbon conductor element.

Conveniently, the cable is designed according to the USB standard, in particular according to the USB 3.1 standard. Preferably, both the central element and the ribbon conductor element each have 4 transmission elements.

• Ein Sandwichaufbau aus zwei Folienlagen und dazwischen angeordneten Leitungen. Eine jeweilige Folienlage ist eine Metallfolie, eine metallkaschierte Kunststofffolie, eine galvanisch beschichtete Kunststofffolie, eine elektrochemisch beschichtete Kunststofffolie oder eine elektrostatisch beschichtete Kunststofffolie. Auf die Folienlage ist nicht vollflächige, d.h. lediglich teilweise eine leitende oder nicht-leitende Klebstoffschicht aufgebracht, zur Verbesserung des Kontaktwiderstands zwischen Grund- und Deckfläche, d.h. zwischen den beiden Folienlagen. Die Leitungen sind insbesondere Adern und verlaufen zwischen den Folienlagen, d.h. zwischen Grund- und Deckfläche, gleichmäßig oder ungleichmäßig, d.h. insbesondere in beliebigen Abständen zueinander. Die Leitungen sind passend dimensioniert, d.h. insbesondere hinsichtlich des vorgesehenen Verwendungszwecks. Die Leitungen sind z.B. massive oder geschäumte Adern. Zwischen den insbesondere parallel verlaufenden Leitungen wird ein insbesondere gitterartiger elektrischer Kontakt zwischen metallischer Grund- zu metallischer Deckfläche hergestellt. Eine Bandleitungselement mit einem solchen Sandwichaufbau wird auch als "koaxiale Bandleitung" oder als "koaxiales Bandleitungselement" bezeichnet.

Overall, the cable, in particular the ribbon conductor element is characterized in summary by the following features and properties:

• A sandwich construction consisting of two foil layers and cables arranged between them. A respective film layer is a metal foil, a metal-laminated plastic film, a galvanically coated plastic film, an electrochemically coated plastic film or an electrostatically coated plastic film. On the film layer is not full-surface, ie only partially applied a conductive or non-conductive adhesive layer, to improve the contact resistance between the base and top surface, ie between the two film layers. The lines are in particular cores and run between the film layers, ie between the base and top surface, evenly or non-uniformly, ie in particular at any distance from each other. The lines are suitably dimensioned, ie in particular with regard to the intended use. The cables are for example solid or foamed cores. Between the particular parallel running lines a particular grid-like electrical contact between the metallic base is made to metallic top surface. A ribbon conductor member having such a sandwich structure is also called a "coaxial ribbon lead" or a "coaxial ribbon lead member".

The aforementioned lattice structure is executed in a first variant periodically or evenly, in a second variant, however, e.g. not performed evenly for mechanical, steric or geometric reasons. Conversely, larger recesses, e.g. conceivable in the area of the course of Kontaktierungshilfen.

Preferably, but not exclusively, the sandwich construction is extended by non-isolated vanes, e.g. a wire, a strand, a guide, for contacting the acting as an outer conductor conductive film.

Alternatively, the particular grid-like electrical contact between metallic base to metallic top surface between each second of the particular parallel lines is made and is formed. As a result, in each case two lines, in particular wires, combined to form a pair of wires, in particular wire pair and not shielded against each other, but shielded from other cable pairs. A ribbon conductor member having such a construction is also called a "symmetrical-shielded ribbon conductor" or a "symmetrically-shielded ribbon power member".
Alternatively, a respective film layer is a non-conductive (plastic) film. In this case, a spatial separation between each second preferably parallel line, in particular vein, by the adhesive effect of the base and cover film produced, with the function that two related lines permanently close together and form a pair of data and that between different data pairs a permanent, fixed distance remains. A ribbon conductor member of such a structure is also called a "symmetrically unshielded ribbon conductor" or a "symmetrical unshielded ribbon conductor member".

Conveniently, the sandwich construction is extended by a number of suitably designed polymer or glass fibers for transmission of optical signals.

Conveniently, the sandwich construction is extended by a number of suitably designed cores for transmitting electrical power and signals without data transmission requirements.

Conveniently, the ribbon conductor element additionally comprises a number of flat conductor elements, i. the sandwich construction is extended by a number of flat conductor elements.

In an advantageous embodiment, the two film layers are each formed as a metal-coated or metallkaschierte film, each with a carrier film on which a metal layer is applied.

In a further advantageous embodiment, the two metal layers are connected by means of an adhesive, which is preferably applied only in areas or sections, and in particular only selectively to one or both of the metal layers.

In a further advantageous embodiment, a conductor is arranged between the two metal layers and in particular between two of the lines, in particular a wire or stranded conductor, which is electrically connected to both metal layers and electrically contacts them.

In a further advantageous embodiment, the lines form a cross-sectional contour, to which the film layers are adapted, wherein the film layers abut each other in the region between two respective lines. By "adapted" is meant, in particular, that the film layers follow the cross-sectional contour of the lines and therefore lie directly against one another in a line-free intermediate region between the lines.

In a further advantageous embodiment, the two film layers are each a part of a common film, which is folded to form the two film layers, in particular folded longitudinally.

In a further advantageous embodiment, the lines are formed as wire pairs, with two wires, which are in particular twisted together and which are preferably surrounded by a common cable jacket.

In a further advantageous embodiment, the film layers are made only of an electrically insulating material, i. do not have an electrically conductive layer.

In a further advantageous embodiment, the ribbon conductor element is banded around the central element.

During production, the ribbon conductor element is preferably banded or folded longitudinally around the central element.

In a further advantageous embodiment, the central element has a number of lines that both the lines of the central element and the lines of the stripline element are designed for data transmission.

In a further advantageous embodiment, the central element has a number of lines which are stranded together to form a stranded composite, the stripline element preferably being banded around the stranded composite and / or an outer shield, for example a braided or spiral shield, being applied around the ribbon conductor element.

In a further advantageous embodiment, the cable is designed as a USB cable, in particular as a USB 3.1 cable, wherein the central element and the ribbon conductor element preferably each have four wires

In a further advantageous embodiment, the central element is designed as a USB 2.0 cable.

The following describes the use of coaxial, symmetrical-shielded and symmetrical-unshielded ribbon conductor elements, in particular according to the above-mentioned embodiments, for cables, data cables and hybrid cables, in particular for the realization of USB 3.1 cable constructions.

The optimized ribbon conductor elements described above are advantageously used for cables, in particular data cables and in particular hybrid cables. Foil-like conductor elements, i. Strip line elements are characterized in particular by the fact that they can be manufactured particularly inexpensively for the first, secondly applied with different technologies (for example longitudinally running or banded) and, thirdly, for additional functions such as foil shielding or as a release film. Suitably, these conductor elements are therefore used accordingly.

If a cable or line design requires a number of identically or differently constructed, coaxial or symmetrical conductor elements without mutual dependence, it is preferable to use the above-mentioned parallel production approach. This results in particular cost advantages. The production process described above is optimized in particular due to the non-full-surface adhesive application and advantageously fully scalable. In this case, in particular only one production run, the required number of, in particular, parallel data transmission elements of coaxial and symmetrical type is provided, as well as a film screen or release film required with respect to the hybrid line.

• Bei einer ersten Verwendung wird das Bandleitungselement in einem längseinlaufenden Prozess auf einen beliebig gestalteten Unterbau angeordnet. Die Längsachse der Folienlagen und der Datenpaare ist vorzugsweise parallel zur Längsrichtung des Unterbaus. Dabei wird die benötigte Anzahl an Leitungspaaren, insbesondere Datenübertragungspaaren angebracht. Die Anbringung erfolgt in einem Arbeitsgang mit der Anbringung einer doppelseitig metallisch kaschierten Folie als Folienschirm. Dies hat insbesondere den Vorteil, dass der Bauraum optimiert wird, insbesondere durch Verzicht auf den elektrisch isolierenden und mechanisch schützend wirkenden Außenmantel und im Vergleich zu herkömmlichen paarigen oder koaxialen Elementen.

Another advantage of the below-described use of these elements for lines is in particular that, for example, by a banding of a substructure, ie in particular a central element, with the ribbon conductor element, the bending preferred direction is advantageously adapted application specific. In the longitudinal direction, such stripline elements behave naturally very stiff, the longitudinal direction of the finished hybrid line and the used However, stripline elements is suitably chosen unequal by a suitable choice of the banding angle and thus advantageously canceled the preferred direction. These elements are now preferably used for hybrid line designs as follows:

• In a first use, the ribbon conductor element is arranged in a longitudinally running process on an arbitrarily designed substructure. The longitudinal axis of the film layers and the data pairs is preferably parallel to the longitudinal direction of the substructure. The required number of cable pairs, in particular data transmission pairs is attached. The attachment is done in one operation with the attachment of a double-sided metallic laminated film as a film screen. This has the particular advantage that the space is optimized, in particular by dispensing with the electrically insulating and mechanically protective acting outer sheath and compared to conventional paired or coaxial elements.

In a second use, the stripline element is arranged in a banding process, in particular in counterstrike to a possible existing stranding direction around an arbitrarily designed substructure. The film layers are wound in the same direction with the slope of the stranding around the stranded substructure or with any gradient around the non-stranded substructure. The attachment is done in one operation with the attachment of a double-sided metallic laminated film as a film screen. This has the particular advantage that the space is optimized, in particular by dispensing with the electrically insulating and mechanically protective acting outer jacket.
In a third use, the stripline element is attached in a banding process in the same direction as a possible existing stranding direction of an arbitrarily designed substructure. The film layers are wound around the stranded substructure or at any gradient around the non-stranded substructure in the same direction as the slope of the stranding. The attachment is done in one operation with the attachment of a double-sided metallic laminated film as a film screen. This particular has the Advantage that the space is optimized, in particular by dispensing with the electrically insulating and mechanically protective acting outer sheath and compared to conventional paired or coaxial elements.
In a fourth use, a banding process is carried out as described above, but with metallic braiding or metallic spiraling applied in the same process step. As a result, in particular a common outer screen is formed.

Various aspects of the mentioned uses are combined in one variant.

Fig. 1

eine metallkaschierte Folie,

Fig. 2

ein koaxiales Bandleitungselement während der Fertigung,

Fig. 3

ein koaxiales Bandleitungselement nach der Fertigung,

Fig. 4

ein symmetrisch-geschirmtes Bandleitungselement während der Fertigung,

Fig. 5

ein symmetrisch-geschirmtes Bandleitungselement nach der Fertigung,

Fig. 6

ein symmetrisch-ungeschirmtes Bandleitungselement während der Fertigung,

Fig. 7

ein symmetrisch-ungeschirmtes Bandleitungselement nach der Fertigung, und

Fig. 8

ein Kabel.

Hereinafter, preferred embodiments of the invention will be explained in more detail with reference to a drawing. These show in each case schematically and in a cross-sectional view:

Fig. 1

a metal-clad foil,

Fig. 2

a coaxial stripline element during manufacture,

Fig. 3

a coaxial stripline element after fabrication,

Fig. 4

a symmetrically-shielded stripline element during manufacture,

Fig. 5

a symmetrically-shielded stripline element after fabrication,

Fig. 6

a symmetrical unshielded stripline element during manufacture,

Fig. 7

a symmetrically unshielded ribbon conductor element after manufacture, and

Fig. 8

a cable.

Fig.1 shows a metallized film layer 2, also referred to as a film, with selectively applied adhesive layer 4, to ensure a reduction in the electrical contact resistance in a mirror-inverted bonding of two such films 2 or alternatively in a longitudinal folding of such a film 2. The film 2 itself consists of a carrier layer 6 and a metal layer 8 applied thereto. The adhesive layer 4, also referred to as an adhesion layer, is applied to the metal layer 8.

Fig. 2 shows a schematic diagram of a stripline element 10, shortly a ribbon cable, coaxial type before the joining process. In this case, two metal-laminated film layers 2 are arranged mirror-inverted to one another. In this case, the metal layers 8 face each other. In the case shown, the ribbon conductor element 10 has five coaxial inner conductors 12 lying between the foil layers 2, which are each surrounded by a dielectric 14. An inner conductor 12 forms a line 16 with a respective dielectric 14. Further elements, eg conductors for contacting the metal layers, are omitted here for the sake of clarity. Likewise, the selectively applied adhesive layer 4 is made Fig. 1 for the sake of clarity, not shown here.

Fig. 3 shows a schematic diagram of a ribbon conductor element 10 coaxial type after the joining process, in particular after joining the assembly Fig. 2 , with two metal-laminated film layers 2 in mirror-inverted arrangement and in this case five intermediate coaxial inner conductors 12, which are each surrounded by a dielectric 14. On further elements such as conductors for contacting the metal layers 8 is omitted here for clarity. Likewise, the selectively applied adhesive layer 4 is made Fig. 1 for the sake of clarity, not shown here. Out Fig. 3 It is clear that 16 spaces 18 are formed between the lines in which the two film layers 2 abut each other and shield the lines 16 from each other in this way.

Fig. 4 shows a schematic diagram of a stripline element 10 symmetrischgeschirmter type before the joining process, with metal-laminated film layers 2 in mirrored arrangement. Between the film layers 2 five lines 16 are arranged. The lines 16 are designed here as symmetrical pairs, namely in each case as two wires 20, which are surrounded by a common core jacket 22. On further elements, such as conductors for contacting the metal layers 8, is omitted here for clarity. Likewise, the selectively applied adhesive layer 4 is made Fig. 1 for the sake of clarity, not shown here.

Fig. 5 shows a schematic diagram of a stripline element 10 of symmetrically shielded type after the joining process, in particular after joining the assembly Fig. 4 , That of a ribbon conductor element 10 has two metal-laminated foil layers 2 in a mirror-inverted arrangement and, in this case, five intervening lines 16 which, as in FIG Fig. 4 are formed as symmetrical pairs. On further elements, such as conductors for contacting the metal layers 8, is omitted here for clarity. Likewise, the selectively applied adhesive layer 4 is made Fig. 1 for the sake of clarity, not shown here.

Fig. 6 shows a schematic diagram of a stripline element 10 symmetrical unshielded type before the joining process, with two film layers 2 and in this case four intermediate lines 16, which here as in Fig. 4 are formed as symmetrical pairs. Other elements are omitted here for clarity. Likewise, the selectively applied adhesive layer 4 is made Fig. 1 for the sake of clarity, not shown here.

Fig. 7 shows a schematic diagram of a stripline element 10 symmetrical unshielded type after the joining process, in particular after joining the assembly Fig. 6 , with two film layers 2 and in this case four intervening lines 16, which are formed as symmetrical pairs. Other elements are omitted here for clarity. Likewise, the selectively applied adhesive layer 4 is made Fig. 1 for the sake of clarity, not shown here.

From all the Fig. 2 to 7 It is clear that the film layers 2 are adapted to the cross-sectional contour of the lines 16 after the production of the stripline element 10. In the spaces 18, the film layers 2 are directly against each other. In the case of metal-laminated foil layers 2, their metal layers 8 rest against one another and are electrically contacted with one another.

Fig. 8 shows a cable 24, which is designed as a data transmission cable, in particular USB cable, with a central element 26 and with a ribbon conductor element 10, which is arranged around the central element 26 around. The film layers 2 here only shown very schematically. The ribbon conductor element is in particular a ribbon conductor element 10 according to FIG Fig. 3 , In a variant, not shown, one of the stripline elements 10 according to the FIGS. 5 and 7 used with suitable number of cores. The central element 26 is designed as a USB 2.0 cable, with four wires 28. The tape-line element 10 has four lines 16, namely also four wires. Through the total of eight wires 16, 28, the cable 24 is then formed in particular as a USB 3.1 cable.

Claims (23)

Cable, in particular data cable, which extends in a longitudinal direction and has a central element which is surrounded, in particular enveloped, by a ribbon conductor element, wherein the ribbon conductor element has two foil layers and a number of lines, in particular cores, which are arranged between the foil layers. Cable according to the preceding claim,
characterized,
in that the ribbon conductor element is designed as a coaxial ribbon conductor element with a number of coaxial elements, in that the foil layers are formed as metal-laminated foil layers, each with a conductive side, and
that the conduits are formed as an internal structure of a coaxial conductor, are each having an inner conductor which is surrounded by a dielectric, wherein the conductive sides of the film layers facing each other and are electrically conductively connected and thus form a common outer conductor for the coaxial elements. Cable according to one of the preceding claims,
characterized,
that the ribbon conductor element is formed as a symmetrically-shielded ribbon conductor element by the foil layers are formed as metal-laminated foil layers, each with a conductive side, and in that two of the lines are combined into a pair of wires, in particular twisted together or arranged to run parallel to each other, and
in that the conductive sides are connected to one another only outside the lines of a respective line pair, in order to form shielded pairs of lines. Cable according to one of the preceding claims,
characterized,
in that the ribbon conductor element is designed as a symmetrically unshielded ribbon conductor element in that the foil layers are designed as non-conductive foil layers and the lines are unshielded and preferably two of the lines are combined to form an unshielded pair of wires, in particular twisted together. Cable according to one of the preceding claims,
characterized,
in that the stripline element additionally has a number of flat conductor elements. Cable according to one of the preceding claims,
characterized,
that the two film layers are each formed as a metal-coated or metallkaschierte film, each having a carrier film on which a metal layer is applied. Cable according to one of the preceding claims,
characterized,
that the two metal layers are connected by means of an adhesive, which preferably only area or in sections, and in particular is only selectively applied to one or both of the metal layers. Cable according to one of the preceding claims,
characterized,
in that a conductor is arranged between the two metal layers and in particular between two of the lines, in particular a wire or stranded conductor, which is electrically connected to both metal layers and contacts them electrically with each other. Cable according to one of the preceding claims,
characterized,
that the lines form a cross-sectional contour, to which the film layers are adjusted, wherein the foil layers abut one another in the region between two respective lines. Cable according to one of the preceding claims,
characterized,
that the two film layers are each a part of a common film, which is folded to form the two film layers, in particular folded longitudinally. Cable according to one of the preceding claims,
characterized,
in that the lines are designed as wire pairs, with two wires, which in particular are twisted together and which are preferably surrounded by a common cable jacket. Cable according to one of the preceding claims,
characterized,
that the film layers are made only of an electrically insulating material. Cable according to one of the preceding claims,
characterized,
that the ribbon conductor element is banded around the central element. Cable according to one of the preceding claims,
characterized,
in that the central element has a number of lines and in that both the lines of the central element and the lines of the ribbon conductor element are designed for data transmission. Cable according to one of the preceding claims,
characterized,
in that the central element has a number of lines which are stranded together to form a stranded composite, wherein the stripline element is preferably banded around the stranded composite and / or an outer screen is applied around the stripline element. Cable according to one of the preceding claims, which is designed as a USB cable, in particular as USB 3.1 cable, wherein the central element and the ribbon conductor element preferably each have four wires. Cable according to one of the preceding claims,
characterized,
that the central element is designed as a USB 2.0 cable. Method for producing a cable, in particular according to one of the preceding claims, wherein a central element is surrounded, in particular enveloped, by a ribbon conductor element, wherein the ribbon conductor element has two foil layers, between which a number of lines are arranged. Method according to the preceding claim,
characterized,
that the ribbon conductor element is banded or folded around the central element. Method according to the preceding claim,
characterized,
that the central element is formed as a stranded bundle of a plurality of lines, in particular data lines, and that the ribbon cable element is preferably banded around the central element around in a counter-punch or counter-blow to the striking direction of the Verseilverbundes. Stripline element, in particular for a cable according to one of claims 1 to 20, with two foil layers and with a number of lines which are arranged between the foil layers. Method for producing a stripline element, in particular according to the preceding claim, wherein a number of lines between two film layers is arranged and the film layers are connected to each other, in particular adhesively bonded pointwise. Use of the cable according to one of claims 1 to 20 in a motor vehicle.

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