EP2569780B1 - Conductor arrangement - Google Patents

Description

The invention relates to a conductor arrangement, which has a plurality of wells, consisting of a plurality of parallel strands, wherein the strands are formed from a plurality of mutually insulated conductor wires.

From the prior art, for example from the US 2006/038730 A1 are already known conductor arrangements, which consist of a plurality of conductor wires, in which the individual conductor wires are insulated from each other.

So revealed the DE 11 2008 000 175 T5 a conductor assembly in which a plurality of lead wires are integrated, wherein each of the lead wires has a cross section of one of parts, in which an entire cross section of the conductor assembly is divided. This conductor arrangement comprises an insulating covering layer for covering and insulating an entirety of the wire arrangement of the conductor wires, wherein the conductor wires are separated from each other by an insulating adhesive layer and adhered to each other.

From the DE 28 11 028 C2 For example, a conductor assembly, namely a power cable having a Millikan conductor of circular cross-section, is made up of at least four sector-shaped conductive elements, the conductor being insulated with oil-impregnated paper and each conductive element having twisted or stranded metal wires, and wherein each metal wire (conductor wire ) is provided with an insulating coating.

The problem with this prior art is that there are serious disadvantages with conductors having large cross-sectional areas due to the skin effect and the eddy current effects or eddy current losses, which increases the actual resistance of the conductors and in many cases all the advantages in Asked or repealed, which actually arise from the larger size of the conductor or the conductor arrangement. To minimize these effects, Millikan conductors are generally used, which are known to consist of four or more sector-shaped conductive elements, which are stranded separately and arranged so that a conductor with a circular Cross section is formed. Each sector is usually formed of stranded copper wires. Such arrangements have attempted to avoid the skin effect as well as eddy current losses, as this arrangement should compensate for the inductive voltage drop in each of the wires. However, this could not be achieved so far with this prior art, since these arrangements still lead to a significant skin effect and eddy current losses.

Based on this problem, it is an object of the invention to provide a conductor arrangement, in particular a Millikan conductor, which can better avoid the skin effect and eddy current losses in order to prevent or reduce inductive voltage drops as far as possible.

To solve the problem, the invention is characterized in that in the conductor arrangement according to the invention groups of wells are intertwined into braids and that a plurality of braids is stranded to the conductor arrangement.

Advantageously, a structure of a conductor arrangement can be realized with this arrangement of a conductor arrangement, in particular a Millikan conductor, the individual sections, consisting of a plurality of juxtaposed strands, which reduces the skin effect and eddy current losses, since due to the interweaving of the individual Fachungen the individual strands or wells not only run in a particular region of the conductor assembly cross-section, but are distributed evenly over the entire cross-section of the conductor cross section according to the invention, at each point of the cross section of the conductor arrangement due to the interweaving. Advantageously, can be used by this design of the conductor arrangement of the entire cross section of the conductor for power line and the so-called skin effect or eddy current losses are minimized.

It has been found that it is advantageous if the conductor arrangement has a substantially circular cross-sectional area. In particular, conductor arrangements according to the invention with a substantially circular cross-sectional area can be used for contactless energy transfer for transport systems for components used in industrial production, in particular automobile production. However, it is also conceivable to use the further arrangement according to the invention for contactless energy transmission in the field of electromobility. Theoretically, however, it is also conceivable to produce a conductor arrangement according to the invention which is used for other purposes, with a quadrangular or also polygonal cross-sectional area, for example.

In order to achieve the most homogeneous possible distribution of the individual sections over the cross section of the conductor arrangement, it is advantageous if the individual sections are mutually intertwined. Alternatively, it is also conceivable to lace, knit or weave the individual sections.

So that the individual conductor wires do not come into direct contact within the conductor arrangement, they are insulated. It is advantageous if an insulating lacquer layer is used to insulate the individual conductor wires, which is applied to the individual conductor wires. This insulating lacquer layer may be formed, for example, as an elastic protective lacquer.

Advantageously, a strand may consist of a number of 2 to 1000, preferably 18 or 19 individual wires.

Advantageously, a compartment may consist of a number of 2 to 20, preferably 4 to 8 strands. The braid of a conductor arrangement according to the invention can advantageously consist of a number of 4 to 48, preferably 16, wells.

According to the invention, it has been shown that it is advantageous if a number of 1 to 6, preferably four, braids are stranded into a conductor arrangement.

In order to protect the conductor arrangement according to the invention against external influences, it may additionally be surrounded by at least one outer insulation. It is also conceivable that the outer insulation has a multilayer structure.

It is also possible that the conductor arrangement according to the invention is constructed of braids having different numbers of strands in the respective sections. Thus, it is possible that for the production of a conductor arrangement according to the invention wells are used, which consist of four juxtaposed strands and in addition wells are used, which consist of five juxtaposed strands. From each of the 16 sheds with five strands and 16 of the sheds with four strands two braids are created. In a next step, the conductor arrangements according to the invention are then created from these braids by means of a stranding process.

Due to the design of the conductor arrangement according to the invention, all the conductor wires are as equally as possible at all distances to the conductor center, whereby a maximum possible penetration of the current into the conductor can be achieved.

Figur 1:

einen Ausschnitt aus einer Querschnittsdarstellung einer erfindungsgemäßen Leiteranordnung; zudem den Aufbau einer Litze und einer Fachung;

Figur 2:

eine Seitenansicht einer erfindungsgemäßen Leiteranordnung im Bereich der verflochtenen Fachungen, und

Figur 3:

einen schematisierten Aufbau der erfindungsgemäßen Leiteranordnung in einer Querschnittsdarstellung.

With reference to drawings, an embodiment of the invention will be explained in more detail. Show it:

FIG. 1:

a detail of a cross-sectional view of a conductor arrangement according to the invention; in addition, the construction of a strand and a compartment;

FIG. 2:

a side view of a conductor arrangement according to the invention in the region of the interwoven shelves, and

FIG. 3:

a schematic structure of the conductor arrangement according to the invention in a cross-sectional view.

FIG. 1 shows a section of a cross-sectional view of a conductor arrangement according to the invention, namely a mesh 5, which consists of a plurality of wells 2, which are constructed of a plurality of juxtaposed strands 3, wherein the strands 3 is formed of a plurality of insulated conductor wires 4. FIG. 1 can be seen that a strand 3 of 19 mutually insulated conductor wires, namely Cu enameled wires consists. A compartment 2 is in this case constructed of four strands 3. The sections 2 are distributed uniformly over the cross section of the mesh 5. It is possible that the individual sections 2 are distributed uniformly over the entire cross-sectional area.

FIG. 2 shows a side view of the braid 5 in the longitudinal direction. Out FIG. 2 It can be seen that the individual sections 2, which are shown here in black and white, are mutually intertwined. Because of this interweaving, a homogeneous distribution of the individual sections 2 in the conductor arrangement according to the invention can be achieved if the braids 5 produced by the braiding process are stranded to form the conductor arrangement according to the invention.

FIG. 3 schematically shows the cross section of a conductor arrangement 1 according to the invention, in particular a Millikan conductor. The conductor assembly 1 consists of four braids 5, which are stranded together. The four interconnected braids 5 are surrounded by two bandings 8 and 9 and two extruded insulation layers 6 and 7.

LIST OF REFERENCE NUMBERS

1. 1: conductor arrangement
2. 2: Subject
3. 3: wire
4. 4: conductor wire
5. 5: braid
6. 6: insulation layer
7. 7: insulation layer
8. 8: Banding
9. 9: Banding

Claims (9)

1. Conductor arrangement (1), which has a number of groupings (2), consisting of a plurality of stranded wires (3) arranged in parallel, the stranded wires (3) being formed by a plurality of conductor wires (4) that are individually insulated from one another,
   characterized in that groups of groupings (2) are mutually interwoven with one another to form braids (5) and in that a plurality of braids (5) are stranded together to form the conductor arrangement (1), the stranded braids (5) forming in the finished conductor arrangement (1) segments that extend into the centre of the cross-sectional area.
2. Conductor arrangement (1) according to Claim 1, characterized in that it has an at least approximately circular cross-sectional area.
3. Conductor arrangement (1) according to Claim 1 or 2, characterized in that, for insulation, the conductor wires (4) have a layer of insulating enamel.
4. Conductor arrangement (1) according to one of Claims 1 to 3, characterized in that a stranded wire (3) consists of a number of individual wires (4), from 2 to 1000, preferably 18 or 19.
5. Conductor arrangement (1) according to one of Claims 1 to 4, characterized in that a grouping (2) consists of a number of stranded wires (3), from 2 to 20, preferably 4 to 8.
6. Conductor arrangement (1) according to one of Claims 1 to 5, characterized in that a braid (5) consists of a number of groupings (2), from 4 to 48, preferably 16.
7. Conductor arrangement (1) according to one of Claims 1 to 6, characterized in that a number of braids (5), from 1 to 6, preferably four, are stranded together to form the conductor arrangement (1).
8. Conductor arrangement (1) according to one of Claims 1 to 7, characterized in that it is surrounded by at least one outer insulating layer (6, 7) and/or at least one banding (8, 9).
9. Conductor arrangement (1) according to one of Claims 1 to 8, characterized in that it is made up of braids (5) that have different numbers of stranded wires (3) in the groupings (2).

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