Method for producing an assembly comprising a plug and a coaxial cable, and assembly

Abstract

The invention relates to a method for producing an assembly of a connector and a coaxial cable, in particular for high-frequency applications, or a component for such an assembly. In addition, the invention also provides an assembly body and application of the assembly body. The invention solves the target conflict between large retention and good high-frequency performance, and provides a solution to meet the two desired performances.

Description

Technical Field

[0001] The invention relates to a method for manufacturing an assembly consisting of a plug connector and a coaxial cable and an assembly consisting of a plug connector and a coaxial cable. The invention also proposes the use of the assembly for high-frequency applications. Background Art

[0002] The common assembly consisting of a plug connector and a coaxial cable usually has a support clamp or a support sleeve, which surrounds the outer conductor of the coaxial cable. The support clamp or the support sleeve is used to achieve a large holding force. Depending on the structure, there may also be a separate crimping clamp or an additional crimping tube, which surrounds the outer conductor portion of the assembly. The measures are particularly used for the work safety and fault safety of the assembly. Normally, the support clamp or the support sleeve or the crimping clamp or the crimping tube is located at the connecting portion of the outer conductor portion. The crimping clamp or the crimping tube can be used, for example, to apply the holding force required according to the FAKRA standard. The outer conductor portion in this case can be, for example, a tube that serves as an integral part to connect the outer conductor of the cable and the outer conductor portion of the plug connector of complementary shape.

[0003] In tests it was determined that the high frequency properties (such as impedance curve and reflection coefficient) are adversely affected by the support clamp or support sleeve or crimping clamp or separate crimping tube. Excessive compression or shape change of the insulation can also have an adverse effect on the high frequency properties. Summary of the invention

[0004] The object of the present invention is therefore to provide a solution to the problems described. The object of the present invention is therefore in particular to resolve the conflict of objectives between high holding forces and good high-frequency properties, ie to provide a solution that satisfies both desired properties.

[0005] The present invention particularly proposes a method for manufacturing an assembly consisting of a plug connector for high-frequency applications and a coaxial cable or a component for such an assembly, comprising: - providing an outer conductor part, wherein the outer conductor part has at least one connecting part with an inner wall, the connecting part being designed at least partially as a hollow cylinder, - providing an inner conductor part and an insulating part, - providing a coaxial cable, wherein the coaxial cable has an outer conductor including a metal wire, an inner conductor at least partially arranged inside the outer conductor, an insulator at least partially arranged inside the outer conductor and at least partially surrounding the inner conductor, and a sheath at least partially surrounding the outer conductor, - stripping an outer conductor section of the coaxial cable, - folding the outer conductor stripping portion around a first cable section of the coaxial cable and arranging the metal wire outside the sheath in the first cable section, - assembling the coaxial cable and the outer conductor part to form the assembly or component, wherein the outer conductor part is fitted onto the first cable part via the connecting part of the outer conductor part, - reducing the inner diameter of the connection, so that / wherein the cable sleeve is compressed at least in a first part of the connection and the wire bears against the inner wall of the connection and the cable sleeve, The first section includes at least 70% of the region of the connecting portion in which the metal wire is arranged between the inner wall and the cable sheath.

[0006] In the following, features are sometimes described in the singular. Alternatively or additionally, this description also includes a corresponding disclosure for a plurality of such features. The term "at least partly" is synonymous with "completely or partly".

[0007] The “metal wires abutting the inner wall of the connecting part” and the “metal wires between the inner wall and the cable sheath” refer to the metal wires of the folded part of the outer conductor, that is, the metal wire segments in the folded part of the outer conductor.

[0008] The statement “the first part includes at least 70% of the following area of ​​the connecting portion, in which the metal wire is arranged between the inner wall and the cable sleeve” means that the inner diameter is reduced at any position within at least 70% of the area (i.e., along at least 70% of the entire length of the area), and the cable sleeve is compressed at any position within at least 70% of the area (i.e., along at least 70% of the entire length of the area).

[0009] In any position where the wire is brought into contact with the inner wall of the connecting part and the cable sheath, the wire is preferably clamped between the inner wall of the outer conductor part and the cable sheath.

[0010] In the region of the connection in which the wire is arranged between the inner wall and the cable sheath, the wire is preferably clamped between the inner wall of the outer conductor part and the cable sheath.

[0011] In the region of the connection part in which the wire is arranged between the inner wall and the cable sheath and at least 70% of which is encompassed by the first section, the wire is preferably clamped between the inner wall of the outer conductor part and the cable sheath.

[0012] In other words, in the first part, the inner diameter of the connection is reduced. The reduction of the inner diameter of the connection does not necessarily have to be achieved in a uniform and / or consistent manner and / or to the same extent. However, the reduction of the inner diameter of the connection is preferably carried out in a uniform and / or consistent manner and / or to the same extent in the first part.

[0013] At least in the first section, the connection can be designed as a hollow cylinder at any position or at least in part. In particular, in the region of the connection where the wire is arranged between the inner wall and the cable sleeve, the connection can be designed as a hollow cylinder at any position or at least in part. The inner diameter can be reduced to the same extent at all positions in the region and / or in the first section. This can have a positive effect on the high-frequency performance while also achieving a high holding force.

[0014] Other parts may be added to the assembly to form a connector. The method may involve the assembly of the following components, which can be supplemented or assembled with other parts or components to form the assembly of the present invention. Using this method, any assembly according to the present invention can be manufactured, the structure of which is described below. The aforementioned features or method features of the proposed design can be the subject of the method of the present invention. Regarding the method of the present invention, full reference can be made to the design of the assembly of the present invention, and vice versa. The proposed method can be performed at least partially automatically.

[0015] The stripping of the outer conductor section of the coaxial cable comprises in particular: removing the sheath from the corresponding section of the coaxial cable which contains the outer conductor section before stripping. "Turning over" means that the wires of the outer conductor section are folded over toward the coaxial cable (its sheath) and can be similar to turning an umbrella upside down. The arrangement of the wires outside the sheath in the first cable section can actually be carried out simultaneously with the folding over.

[0016] The arrangement of the metal wires selectively along the longitudinal direction of the first cable part can be carried out simultaneously with the folding. The folding and / or arrangement of the metal wires (selectively arranged along the longitudinal direction) can in particular include partially or completely loosening the braid of the outer conductor stripping part. The metal wires of the outer conductor stripping part can then, for example, only form a wide mesh braid, or preferably no longer form a braid. That is, the metal wires only overlap and cross slightly, or even no longer overlap and cross. When the metal wires are arranged in the longitudinal direction, overlap or crossing is advantageously avoided to a large extent. The subsequent re-overlapping process caused by assembly (set connection part) is then significantly reduced. Therefore, this arrangement is preferred. The advantageous result is that a high holding force can be achieved when there is a small overlap or no overlap. In addition, the uniform compression of the cable sheath and the cable also has a positive effect on the high-frequency performance.

[0017] The outer conductor part and the insulating part can form a common unit, for example in the form of a common and / or assembled and / or prefabricated component. The inner conductor part and the inner conductor of the coaxial cable can form a common unit, for example in the form of a common and / or assembled and / or prefabricated component. It can be provided that at least two other parts of the assembly form at least one common unit, for example in the form of a common and / or assembled and / or prefabricated component.

[0018] The connection part can be pushed onto the first cable part by applying pressure.

[0019] The combination of the components into an assembly may in particular include one or more or all of the following steps: - adding the insulation to the outer conductor (unless the outer conductor and the insulation are already a common part and / or have already been assembled, in which case the said step may be omitted); - connecting the inner conductor section to the inner conductor of the coaxial cable (unless the inner conductor of the coaxial cable and the inner conductor section are already a common part and / or have been pre-assembled, in which case this step may be omitted); - Connecting the outer conductor to the housing of the assembly.

[0020] Generally, the method may include, among other things: - Assembling the inner conductor part and the insulating part with the coaxial cable and the outer conductor part into the assembly or component, wherein the outer conductor part is fitted onto the first cable part via the connecting part of the outer conductor part.

[0021] The reduction of the inner diameter of the connection is advantageously carried out when the first cable part is already located in the connection. The reduction of the inner diameter can be achieved by applying pressure to the connection from the outside, for example by means of two half shells, as will be explained. Other methods of applying pressure are also possible, for example by changing the ambient pressure in the area of ​​the connection. The inner diameter of the connection can be reduced in a part of the connection (wherein at least 70% of the area of ​​the connection where the wire is arranged between the inner wall and the cable sleeve is included) or with respect to the entire connection.

[0022] The proposed method is a simple, low-cost, fast and automatable way to produce the assembly according to the invention, with all its advantages (see below). The reduction of the inner diameter of the connection (comprising at least 70% of the area of ​​the connection where the wire is arranged between the inner wall and the cable sleeve) is an effective and feasible way to increase the holding force while maintaining the high-frequency performance. It is particularly advantageous here that when the inner diameter is reduced in this length region, the cable (and the insulation) are not overly compressed (which is beneficial for the high-frequency performance) and a high holding force can still be achieved.

[0023] In an advantageous embodiment of the method according to the invention, the connecting part is designed completely as a hollow cylinder.

[0024] This may mean in particular that no cutouts, interruptions, notches or spaces are provided in the outer contour of the connecting part. In particular, no cutouts, interruptions, notches or spaces may be provided at the outer ends of the connecting part.

[0025] The described embodiment of the method according to the invention provides a simple and feasible way to increase the holding force while maintaining high-frequency performance. The continuous hollow cylinder can apply force to the cable in a particularly uniform manner and thus can achieve a high holding force without excessive compression of the cable. In addition, the manufacturing costs of the outer conductor part and the manufacturing costs for producing the assembly according to the invention are very low.

[0026] In an advantageous embodiment of the method according to the invention, the first section completely comprises the region of the connection between the inner wall and the cable sheath in which the wire is arranged.

[0027] The inner diameter is reduced at any position where the rolled metal wire is arranged. The inner diameter can be reduced to the same extent at all positions of the first part.

[0028] The proposed embodiment is an effective and feasible way to increase the holding force while maintaining high frequency performance.

[0029] In an advantageous embodiment of the method according to the invention, the reduction of the inner diameter of the connection is carried out by means of two half shells, each of which has a semi-cylindrical recess, wherein the two half shells are pressed onto the connection with the semi-cylindrical recess, wherein the inner radius of the semi-cylindrical recess is smaller than the outer diameter of the connection before the reduction of the inner diameter.

[0030] In particular, the inner radius of the semi-cylindrical recess can be smaller and preferably slightly smaller than the outer diameter of the connection before the inner diameter is reduced, for example, preferably at least 2% smaller, particularly preferably at least 4% smaller. An advantageous upper limit can be particularly preferably 7% or 10% or even more preferably 5%. The interval of 4 to 5% is particularly advantageous. Other advantageous intervals are 2 to 5%, 2 to 7%, 2 to 10%, 4 to 7%, 4 to 10%. Too small an inner radius of the semi-cylindrical recess leads to uneven connection deformation and burr formation.

[0031] The proposed embodiment allows to achieve the advantages of the invention simply and easily automatable. In particular, it is a simple method to apply pressure comprehensively in a practical manner.

[0032] In an advantageous embodiment of the method according to the invention, the inner diameter of the connection is reduced by at least 4%.

[0033] As a result, the reduction in the inner diameter advantageously already results in a significant increase in the holding force between the plug connector and the coaxial cable.

[0034] In an advantageous embodiment of the method according to the invention, the inner diameter of the connection is reduced by at most 5% or at most 10% or at most 15%. These limits can be used in conjunction with the abovementioned lower limit of at least 4%.

[0035] Advantageously, uneven diameter reduction and / or burr formation can thereby be avoided in a very reliable manner while taking into account component tolerances and tool tolerances.

[0036] In one embodiment of the method of the present invention, the outer conductor stripping portion is buckled around the first cable portion of the cable sheath by brushing, in particular by means of a wire brushing machine, and the wires of the outer conductor stripping portion are arranged in the longitudinal direction of the first cable portion.

[0037] In practical tests, the use of a wire brushing machine has been shown to be a simple, fast, low-cost and easily automated way to achieve the two steps of folding and longitudinal arrangement of the wire in the same step. In particular, a rotary wire brushing machine can be used.

[0038] In an advantageous embodiment of the method of the present invention, the method further comprises: At least one inwardly directed depression is introduced into the connecting part, wherein the depression has a smaller axial extension than the first section.

[0039] In one embodiment, at least one recess is introduced into a first portion of the connecting part, at least in this first portion, the inner diameter of the connecting part is reduced.

[0040] In one embodiment, at least one recess is introduced into the region of the connection between the inner wall and the cable sheath, in which the wire is arranged.

[0041] The introduction can be carried out, for example, by means of a punch or a crimping tool or other tools. The advantages already described of one or more depressions can be realized simply, quickly, cost-effectively and easily automated.

[0042] In an advantageous embodiment of the method according to the invention, the insulation of the coaxial cable is compressed by introducing at least one depression.

[0043] In this regard, reference is made in particular to the other embodiments. The additional compression of the insulating body advantageously results in an increase in the holding force.

[0044] In an advantageous embodiment of the method according to the invention, the assembly has no additional support clip or support sleeve or crimping clip and no additional crimping tube which are arranged around the first cable part and / or the insulation.

[0045] Advantages and descriptions of a corresponding design of the assembly according to the invention: In particular, the high-frequency properties can be optimized, and the method can also be simplified because corresponding connection steps (such as crimping or plug-in) are not required.

[0046] In an advantageous embodiment of the method according to the invention, the outer conductor part is designed as a tube, in particular a thin-walled tube.

[0047] The outer conductor part is preferably made of metal.

[0048] The outer conductor part is preferably formed in one piece.

[0049] Preferably, the outer conductor part is designed as a tube along its entire length. The outer conductor part preferably has no material accumulation (especially on the outer side) protruding beyond the thin-walled tube structure. In particular, the outer conductor part preferably has no material accumulation (especially on the outer side) protruding beyond 0.5 mm or particularly preferably 0.3 mm or more preferably 0.1 mm in terms of wall thickness (especially on the outer side).

[0050] In particular, large accumulations of material or further accumulations of material outside the tube can be avoided. This can refer to accumulations of material that can occur at any location of the outer conductor part. Alternatively or additionally, this can refer to accumulations of material that can be connected to the tube in one piece, i.e. in the form of a common component.

[0051] The proposed embodiment also has advantages in terms of high-frequency properties and can be manufactured and installed particularly easily. The high-frequency properties are positively affected if there are no large accumulations of material on the outside of the outer conductor part. Compared to parts with more complex geometries, tubes are easier to use, especially with regard to an automated embodiment of the method.

[0052] In an advantageous embodiment of the method according to the invention, the outer conductor part is integral.

[0053] The tubular outer conductor part does not necessarily have the same diameter at any position, but the diameter may also be constant.

[0054] The wall thickness of the outer conductor part can be, for example, 0.20 mm. In particular, the wall thickness can be 0.03 to 1 mm, 0.03 to 0.5 mm, or 0.1 to 0.5 mm, preferably 0.1 to 0.3 mm, particularly preferably 0.15 to 0.25 mm.

[0055] In an advantageous embodiment, after the reduction of the inner diameter, the length of the connection is in the range of 5 to 15 mm, preferably in the range of 7 to 10 mm.

[0056] In an advantageous embodiment, after the reduction of the inner diameter, the wall thickness of the connecting part is in the range of 0.1 to 0.5 mm, preferably in the range of 0.1 to 0.3 mm, particularly preferably in the range of 0.15 to 0.25 mm.

[0057] In an advantageous embodiment, after the inner diameter is reduced, the inner diameter of the connecting part is in the range of 3.0 to 4.0 mm. The inner diameter does not necessarily remain constant over the entire length of the connecting part.

[0058] The described embodiment is advantageous in terms of an ideal compromise between good high frequency performance and high holding force. The high frequency performance is favorably affected if there is no large accumulation of material on the outside of the outer conductor part, or if there are no significant geometrical differences in the longitudinal direction of the outer conductor part, and if the outer conductor part is not too long (but its length is still sufficient to achieve good holding force). Compared with parts with more complex geometry, tubes are easier to use, especially in terms of automated embodiments of the method.

[0059] In an advantageous embodiment of the method of the present invention, it also includes: - The metal wire is arranged in the longitudinal direction of the first cable part.

[0060] Reference is made to the remaining explanations and advantages of this embodiment.

[0061] In an advantageous embodiment of the method according to the invention, the first cable section has a diameter reduction of the coaxial cable due to compression of the sheath, wherein the diameter reduction is at least 4%, preferably 4% to 15%, compared to the second cable section. Further values ​​are given below in relation to the disclosure of the product.

[0062] Reference is made to the remaining explanations and advantages of this embodiment.

[0063] The invention also proposes a product in the form of an assembly, which can be obtained in particular by the method according to the invention: an assembly consisting of a plug connector, in particular for high-frequency applications, and a coaxial cable, The connector has: - outer conductor, - an inner conductor part arranged at least partially within the outer conductor part, an insulating portion which is at least partially arranged within the outer conductor portion and at least partially surrounds the inner conductor portion, The outer conductor part has at least one connection part with an inner wall, wherein the connection part is at least partially designed as a hollow cylinder. Wherein, the coaxial cable has: - an outer conductor having a metal wire, - an inner conductor arranged at least partially within the outer conductor, - an insulator at least partially arranged within the outer conductor and at least partially surrounding the inner conductor, - a sheath at least partially surrounding the outer conductor, The coaxial cable has a first cable portion arranged within the connecting portion. wherein the coaxial cable has a second cable portion arranged outside the connecting portion, Wherein, in the first cable part, the outer conductor stripping part of the coaxial cable is arranged around and close to the cable sleeve on the outside, The metal wire of the outer conductor stripping part is located between the cable sleeve and the outer conductor part of the connector and is close to the inner wall of the connecting part and the cable sleeve. Therein, at least the cable sleeve is compressed by the outer conductor part at least in a first portion of the connecting part.

[0064] The first section includes at least 70% of the area of ​​the connection portion in which the metal wire is arranged between the inner wall and the cable sheath.

[0065] The assembly consisting of the plug connector and the coaxial cable can be used in particular for data transmission purposes. The assembly can be used, for example, in the field of vehicle engineering.

[0066] The assembly may have the features already described in relation to the method of the invention, alone or in any combination. The assembly may be obtained by the method of the invention.

[0067] The plug connector can in particular have a housing made of an electrically insulating material. The outer conductor part can be at least partially located within the housing. The plug connector can be a straight plug connector. Alternatively, the plug connector can be an elbow plug connector, which in particular has a 90° angle between the coaxial cable and the plug-side connector. The plug connector can be a male plug connector (also called a plug) or a female plug connector (also called a socket).

[0068] The outer conductor part can be designed in particular as a tube. On the plug side opposite the connection part, the outer conductor part can in particular have a connection for a plug connector of complementary shape or be connected to such a plug connector. The outer conductor part can be electrically and / or mechanically connected to the outer conductor part of the plug connector of complementary shape. The outer conductor part and the insulating part can form a common unit, for example in the form of a common and / or assembled and / or prefabricated component.

[0069] The outer conductor part is electrically and physically connected to the outer conductor of the coaxial cable. The inner conductor part is at least electrically connected to the inner conductor of the coaxial cable. There may also be a direct physical connection between the inner conductor part and the inner conductor, such as by means of a crimp connection. The inner conductor part and the inner conductor of the coaxial cable may form a common unit, for example in the form of a common and / or assembled and / or prefabricated component. It may be provided that at least two other parts of the assembly form a common unit, for example in the form of a common and / or assembled and / or prefabricated component.

[0070] The connecting portion can be designed as a hollow cylinder in whole or in part. The connecting portion is used to receive the coaxial cable through the connector. In the case where the outer conductor portion is partially or through-designed as a tube, the connecting portion can be a part of the tube. The connecting portion can be a section of the outer conductor portion that surrounds and / or contacts the coaxial cable together with the outer conductor of the coaxial cable (regardless of whether the outer conductor is stripped), or can include this section. The connecting portion can be a complete section of the outer conductor portion that surrounds and / or contacts the coaxial cable and its outer conductor (regardless of whether the outer conductor is stripped), or can include this section. The connecting portion can partially or completely surround the coaxial cable area where the metal wire of the outer conductor stripping portion is located.

[0071] The connection part may have at least one recess, which will also be described in the following special embodiment. The recess has an axial extension dimension that is smaller than the first local part. The recess can be, for example, a groove in the transverse direction of the connection part or a groove in the longitudinal direction of the connection part. The groove can especially refer to a linear or ridge-shaped impression (radially inward). Or the recess can be an annular groove or a curl or an annular curl. Multiple recesses can be arranged in the connection part. For example, one recess can be arranged at the first end of the connection part, and another recess can be arranged at the second end of the connection part opposite to the first end. The recesses can also be present on the connection part in radially opposite positions. The recesses are used to increase the holding force of the coaxial cable in the connection part.

[0072] The outer conductor has metal wires, for example in the form of a braid. The outer conductor can be at least partially a braid. In other words, the outer conductor can be at least partially composed of wires, cores, strands and / or fibers. It can be provided that the outer conductor has wires, cores, strands and / or fibers that are not formed into a braid or are only partially formed into a braid. Under the outer conductor or as part of the outer conductor, a shielding film can optionally be present.

[0073] Preferably, a metal wire is arranged in the first section.

[0074] The first cable part is located in the connection part. For example, it can be inserted into the connection part or pushed into it under pressure. There is a reduction in diameter of the preferably hollow cylinder. In particular, this is done in the manufacturing method after the first cable part is inserted into the connection part. Since the metal wires of the outer conductor part (here the inner wall of the connection part) and the outer conductor stripping part are then pressed onto the cable sleeve, compression of the cable sleeve can be caused. In addition, compression of the insulation of the coaxial cable can be obtained thereby. Compression of the cable sleeve or insulation can especially refer to the connection part exerting pressure on the cable sleeve or insulation. The pressure exerted by the connection part on the cable sleeve can act directly from the inner wall of the connection part or indirectly from the inner wall of the connection part through the outer conductor stripping part. The pressure exerted by the connection part on the insulation can be indirectly from the inner wall of the connection part, perhaps through the outer conductor stripping part, the cable sleeve and the outer conductor contained in the coaxial cable and perhaps the shielding film. Compression of the cable sleeve or insulation can also mean that there is a reduction in volume and / or diameter of the relevant part (cable sleeve and / or insulation) compared to the second cable part. The second cable part is located outside the connection part and can be in a state, in particular under ambient conditions, that is, not compressed despite the normal ambient pressure. Compression of the cable sheath or insulation can also mean that a pressure is applied thereto that exceeds the ambient pressure.

[0075] The compression of the insulation of the coaxial cable can lead to a further increase in the holding force, because the compression of the insulation automatically leads to a change in the shape of the cable sheath under the cooperation of the connection part. However, too strong an insulation compression can adversely affect the high-frequency performance. Therefore, compared to the uncompressed state as present in the second cable part, the insulation diameter should be reduced by at most 25% or 20%, preferably at most 15% and particularly preferably at most 10% or at most 8% or at most 5%.

[0076] Alternatively or additionally, at least one depression may be present in the connection, wherein the depression has a smaller axial extension than the first part. In particular, it can be introduced in the manufacturing method after the first cable part has been inserted into the connection and after the inner diameter of the connection has been reduced, for example by pressing in or crimping the connection.

[0077] Since the outer conductor part (the inner wall of its connection part) and the metal wire of the outer conductor stripping part are pressed onto the cable sheath with at least one recess, a possible additional compression of the cable sheath can be achieved. In addition, compression of the insulation of the coaxial cable can be achieved and / or intensified. The assembly holding force (between the plug and the coaxial cable) can thus be increased.

[0078] The second cable section is a common part of the coaxial cable under ambient conditions. The first cable section (in the state before it is located in the connecting section) can correspond to the second cable section with respect to structure and size. The two cable sections can especially be components of the same coaxial cable and have the same structure. The two cable sections can be adjacent to each other.

[0079] The outer conductor stripping section can be a region of the outer conductor of the coaxial cable that is turned out and / or rolled up and / or folded and / or brushed. This can mean that before turning out and / or rolling up and / or folding and / or brushing, the cable sheath surrounding the outer conductor stripping section can be removed, so that the outer conductor stripping section is exposed first. The attitude of the outer conductor stripping section can thus be changed in such a way that the stripping section can now be arranged around the cable sheath, for example by turning out and / or rolling up and / or folding and / or brushing. Brushing with the aid of a wire brushing machine has been proven in practice.

[0080] The connection part or at least a part of the connection part is positioned around the outer conductor stripping part. The connection part can in particular press the metal wire of the outer conductor stripping part onto the cable sleeve, in particular at the location where the inner diameter is reduced, i.e. in particular in the first part. Partial shape changes of the cable sleeve may occur. For example, groove-shaped indentations may occur in the cable sleeve due to the metal wire, which may be elastic deformation and / or plastic deformation. In this way, a desired high holding force can be achieved between the coaxial cable and the connector.

[0081] The metal wires of the outer conductor stripping part can be arranged in the longitudinal direction of the first cable part. "Longitudinal" here can mean that slight deviations from the longitudinal direction are allowed, for example a deviation of up to 5 or 10 or 15 or 20 or 25 degrees. Preferably, the deviation is less than 20 degrees, particularly preferably less than 10 degrees. This longitudinal arrangement can be obtained in particular during the process of turning out and / or rolling and / or folding and / or brushing. The arrangement of the metal wires in the longitudinal direction has been recognized in tests with regard to high-frequency performance and retention.

[0082] The cable sleeve and optionally the insulator can be made of a deformable material. This can mean that they can be made of elastically deformable and / or plastically deformable plastics. The cable sleeve and optionally the insulator can therefore be slightly compressed, especially compared to the inner conductor which is usually made of metal.

[0083] In order to achieve compression of the cable sheath and optionally also of the insulation, the inner diameter of the connection can be, in particular, smaller than the outer diameter of the second cable part or smaller than the sum of the outer diameter of the second cable part and the thickness of a single strand or twice the thickness of one of the metal wires of the outer conductor. The reduction of the inner diameter of the connection can be achieved, in particular, by applying pressure to the connection from the outside over the entire or nearly entire surface, as explained in other paragraphs. Reference is also made to the description of the depression, which can be designed, for example, as a groove. A (possibly further) reduction of the inner diameter of the connection can be achieved by means of a depression, for example an annular groove or an annular crimp.

[0084] The depression can be, for example, a curl or a groove or an at least partially annular depression or an at least partially annular groove. The depression can be oriented longitudinally or transversely. The connecting portion can correspond to the region of the outer conductor part provided with the outer conductor stripping portion. The connecting portion can be larger or, in particular, longer than said region. For example, the connecting portion can include a further region between the inner wall of the outer conductor part and the cable sheath without metal wire.

[0085] The first part of the connection part that compresses the cable sleeve and optionally the insulator through the outer conductor part (the inner wall of the connection part) can be the following area of ​​the connection part, in which one or more recesses are provided. For example, one or more recesses can be arranged as follows: a single depression in the region of the connection part in which the stripping of the outer conductor is provided, and / or two diametrically opposite depressions in said region, and / or - a plurality of depressions in the region of the connection part in which the outer conductor stripping is provided, and / or - a plurality of pairs of two-by-two diametrically opposed depressions in said region.

[0086] Alternatively or additionally, the following may be set in any combination: a single depression in the region of the connection part where no outer conductor stripping is provided, and / or - two diametrically opposed depressions in the region of the connection part where no stripping of the outer conductor is provided, and / or - a plurality of depressions in the region of the connection part where no outer conductor stripping is provided, and / or - A plurality of pairs of two-by-two radially opposite depressions in the region of the connection part where no outer conductor stripping is provided.

[0087] In particular, an assembly according to the invention is disclosed, wherein a plurality of recesses in the form of two first recesses and two second recesses are provided, wherein the two first recesses are diametrically opposed and the two second recesses are diametrically opposed, wherein the two first recesses and the two second recesses are arranged on different longitudinal sections of the connecting part. The different longitudinal sections can be longitudinally opposite ends of the connecting part, i.e., for example, the first and last 15% of the connecting part, respectively, as seen from one side.

[0088] The first part of the connection part, in which the metal wire passes through the outer conductor part (the inner wall of the connection part) and the outer conductor stripping part to compress the cable sheath and selectively the insulation (because the inner diameter is compressed in the present invention), can basically and preferably include the entire following area of ​​the connection part, for example, at least 70%, 80% or 90% of the area, in which the metal wire is arranged between the inner wall of the outer conductor part and the cable sheath.

[0089] The compression is achieved by reducing the inner diameter and optionally also by means of one or more recesses. The compression of the sheath and optionally also the insulation can also preferably be achieved in the entire region of the connection part in which the wire is arranged between the inner wall of the outer conductor part and the sheath, for example by reducing the inner diameter and optionally also by means of one or more recesses. The reduction in the inner diameter and the recesses can together bring about the compression of the sheath and optionally the insulation.

[0090] Furthermore, in another part of the connection where the outer conductor stripping portion of the metal wire is not present, the cable sleeve and optionally the insulation can be compressed. Thus, the compression is only performed by the inner wall of the connection. The first part of the connection where the cable sleeve and optionally the insulation are compressed by the inner wall of the connection can also be almost the entire connection, for example at least 70%, 80% or 90% of the connection, achieved by reducing the inner diameter and optionally by one or more recesses. The compression of the cable sleeve and optionally the insulation can also be achieved in the entire connection, by reducing the inner diameter and optionally by one or more recesses. The reduction in the inner diameter and the recesses may together cause the compression of the cable sleeve and the optional insulation.

[0091] In particular, an assembly according to the invention is disclosed in which the cable sleeve and optionally the insulation are compressed over at least 70% or at least 80% or at least 90% of the length of the connection by the inner wall of the connection and because of the inner diameter of the hollow cylinder.

[0092] The wires of the outer conductor stripping can be arranged in such a way that they do not cross or only cross slightly within the outer conductor stripping. For example, the wires can be arranged in such a way that only a maximum of 30% or a maximum of 20% or preferably a maximum of 10% or particularly preferably a maximum of 5% of the wires cross. In other words, "crossing" can also mean "overlapping" or "superimposing".

[0093] In practical tests, it has been shown that by means of the compression caused by the outer conductor part (the inner wall of its connection part) and the metal wire of the outer conductor stripping part, a high holding force can be achieved with equally good high-frequency performance. This is precisely one of the main advantages of the present invention. A force-fit connection is established between the coaxial cable and the connector, wherein a form-fit part is also present due to the reduction in the inner diameter of the connection part. In addition, if there is a recess in the connection part, a force-fit connection and more obviously a form-fit connection can be established between the coaxial cable and the connector with a very high holding force. In addition, the production of the assembly is inexpensive and technically easy to realize by automation.

[0094] In an advantageous embodiment, the insulation of the coaxial cable is also compressed by the outer conductor at least in the second part of the connection. In the second part (if any), the inner diameter of the connection is also reduced. The inner diameter reduction of the second part can be less than, equal to or greater than the inner diameter reduction of the first part.

[0095] This compression can be achieved in particular by reducing the inner diameter of the connection and / or by one or more recesses.

[0096] A recess is located in the connecting portion, preferably in the second portion.

[0097] There can be multiple second parts.

[0098] There can be multiple depressions.

[0099] The corresponding recess may be located in the corresponding second portion.

[0100] If the insulator is optionally already compressed in the first local part, the insulator is preferably more strongly compressed in the second local part than in the first local part. The percentage value for compression is specified elsewhere in the specification and can be different from each other in the first and second local parts accordingly. If the second local part overlaps with the first local part or the second local part is within the first local part, the compression value described below in percentage should not be added, but the minimum value, maximum value or interval given should be applicable. For example: if an interval of 4 to 10% (see the interval given below) is specified and the second local part is within the first local part, the insulator is compressed by at least 4% and at most 10% in the second local part as a whole. In the first local area where "the first local part does not overlap with the second local part", the insulator can be compressed by, for example, 4%, and in the second local part, it is compressed by 4% to at most 10%, especially 5 to 10%. But alternatively, the insulator can be uncompressed in the first local area where "the first local part does not overlap with the second local part", and only in the second local part, it is compressed by 4 to 10% as a whole.

[0101] The compression of the insulation (note: also the compression of the cable sheath, see the further description thereof in this context) can in particular mean that the insulation is pressed by the connection. The pressing of the insulation by the connection can take place indirectly from the inner wall of the connection, perhaps via the outer conductor stripping, the cable sheath and the outer conductor contained in the coaxial cable and perhaps the shielding film. The compression of the insulation can also mean that there is a reduction in volume and / or a reduction in diameter of the insulation compared to the second cable part. The second cable part is located outside the connection and can in particular be in a state under ambient conditions, i.e., not taking into account the usual ambient pressure, it is not compressed. The compression of the insulation can also mean that it is subjected to a pressure that is higher than the ambient pressure.

[0102] The second part may be located within or overlap the first part. There may be a plurality of second parts. The first and at least one of the second parts may overlap each other completely or partially. More preferably, at least one second part is located within the first part. There may be at least one depression (such as designed as a groove, annular groove, curl and / or annular curl) in at least one second part. If there are a plurality of second parts, there may be at least one depression (such as designed as a groove, annular groove, curl and / or annular curl) in each of the plurality of second parts.

[0103] The proposed embodiment enables the holding force to be advantageously increased. If the reduction in the maximum insulator diameter is kept at a maximum of 25%, the high-frequency properties are not deteriorated or are only slightly deteriorated.

[0104] In an advantageous embodiment, the first portion is larger than the second portion and the insulating body is compressed only in the second portion.

[0105] When the second part is preferably smaller than the first part, the high-frequency performance, which may be adversely affected by excessive or excessive and simultaneously overly large insulator compression, is only slightly deteriorated. Nevertheless, the holding force can also be greatly increased in an advantageous manner. The second part can be an area of ​​the connection where the stripped outer conductor portion is not present. The second part can also be a local area of ​​the connection where the stripped outer conductor is not present.

[0106] In an advantageous embodiment, at least one inwardly directed depression is provided on the inner wall of the connecting part, wherein the insulating body is preferably compressed by the at least one depression.

[0107] By means of a recess, compression of the cable sleeve can first be brought about or intensified. The inner diameter can already be reduced at the location where the recess is provided, in particular in any case where this location is in the first local area. Alternatively or additionally, the insulator can be compressed by the recess. Reference is made to the further description of the compression of the insulator and the cable sleeve.

[0108] There may be one or more depressions. The depressions may be arranged radially opposite each other on the connecting portion, so that symmetry is achieved in the cross section and / or longitudinal section. The depressions may be grooves, curls or slots, for example. In particular, reference is made to the further description of the depressions. At least one depression may be located in the second part.

[0109] By means of one or more recesses, a very high holding force can be achieved between the coaxial cable and the plug connector. If the insulator is compressed by the recesses, the holding force can advantageously be further increased, since a greater form fit can be achieved. However, small and relatively shallow recesses, in particular, do not cause too strong compression of the insulator at the same time, so that the high-frequency properties are not adversely affected or are only slightly adversely affected.

[0110] In an advantageous embodiment, the outer diameter of the insulation in the longitudinal section of the coaxial cable is compressed by at most 25% or at most 20% or at most 15% or at most 10% or at most 5% compared to the outer diameter of the insulation in the second cable section.

[0111] This particularly advantageously prevents the high-frequency properties from being adversely affected by excessive compression of the insulation.

[0112] In an advantageous embodiment, there is a reduction in diameter of the coaxial cable due to the compression of the cable sheath in the first cable section, wherein the diameter reduction amounts to at least 4%, preferably at least 5% or at least 10% or at least 15% compared to the second cable section.

[0113] The diameter reduction exists in at least 70% of the area of ​​the connection where the wire is arranged between the inner wall of the outer conductor part and the cable sheath. The diameter reduction can also exist in the area of ​​the wire of the connection where the outer conductor stripping part is not provided.

[0114] A diameter reduction of at least 4%, preferably at least 10%, particularly preferably at least 15%, allows the desired holding force between the coaxial cable and the plug connector. The diameter reduction is preferably at most 20%, particularly preferably at most 25% or at most 30%.

[0115] The aforementioned minimum diameter reduction and maximum diameter reduction can be combined arbitrarily into interval ranges. The desired interval is therefore 4 to 10%, 4 to 15%, 4 to 20%, 4 to 25%, 4 to 30%, 10 to 15%, 10 to 20%, 10 to 25%, 10 to 30%, 15 to 20%, 15 to 25% or 15 to 30%. Too large a diameter reduction adversely affects the high-frequency performance, in particular because there is too strong compression of the insulation.

[0116] In one embodiment, there is a (possibly further) diameter reduction of the coaxial cable in the case of a recess at the inner wall of the connection.

[0117] The depression can be arranged in particular in the region of the connection in which the wire of the outer conductor stripping is located between the cable sleeve and the outer conductor part of the connector. A further depression can be provided radially opposite to the depression. Compression can also be present in the form of a reduction in the diameter of the coaxial cable due to the inner wall of the connection and the wire. In addition, a reduction in diameter (and therefore compression) can be achieved due to the depression. The depression can be, for example, an annular groove or an annular crimp.

[0118] This embodiment is advantageous because it is an effective means for increasing the retention force between the coaxial cable and the connector that is easily produced.

[0119] In an advantageous embodiment, the maximum diameter reduction of the coaxial cable insulation due to compression in the first cable section compared to the second cable section may be at most 25%.

[0120] A larger reduction in the insulator diameter has an adverse effect on the high-frequency performance, in particular because of the excessive compression of the insulator. Compared to the second cable section corresponding to the uncompressed state, a reduction in the high-frequency performance is still tolerable when the insulator diameter is reduced by up to 25%. Nevertheless, the (possibly additional) reduction in the insulator diameter still achieves the desired retention force between the coaxial cable and the connector. The desired intervals for the maximum reduction in the insulator diameter are 4 to 10%, 4 to 15%, 4 to 20%, 4 to 25%, 10 to 15%, 10 to 20%, 10 to 25%, 15 to 20% or 15 to 25%.

[0121] In an advantageous embodiment, the cable sleeve is compressed over at least 80% of the length of the connecting portion.

[0122] This length may in particular include the following areas of the connection, in which the wires of the outer conductor stripping do not touch the connection, but only the cable sleeve touches the connection. "80%" may also relate to the first cable part. The cable sleeve may also be compressed within the entire connection. The compression may in particular be caused by a reduction in the diameter of the inner wall of the connection and optionally by at least one recess in the inner wall of the connection. It is particularly advantageous for high-frequency performance that in this embodiment a deformation of the insulation that is as uniform as possible can be achieved. Compression over a longer range also allows a large holding force. In order to increase the holding force, at least one recess may also be provided.

[0123] In an advantageous embodiment, the assembly has no additional support clip or support sleeve or crimping clip and no additional crimping tube arranged around the first cable part.

[0124] The support clip or the support sleeve or the crimping clip or the additional crimping tube can be any component which is arranged at least partially around the first cable part, i.e. surrounds the first cable part. In particular, the support clip or the support sleeve can be a metal part. In particular, the support clip or the support sleeve can be part of a crimping connection. The support sleeve or the support clip or the crimping clip or the additional crimping tube is not an outer conductor part.

[0125] By eliminating the parts, the high-frequency performance of the assembly is improved, as already described. Nevertheless, the assembly according to the invention advantageously achieves a high holding force with good high-frequency performance, since the compression of the cable sheath causes a greater compressive stress on the outer conductor part.

[0126] In another aspect, the invention relates to the use of an assembly according to the invention as described previously in general and special embodiments for transmitting high frequencies (signals), as a high-frequency connector, in a high-frequency connector or for producing a high-frequency connector.

[0127] In yet another aspect, the present invention relates to a high-frequency connector having the assembly of the present invention.

[0128] The term "high frequency" refers to a frequency of at least 1 kHz (kilohertz), preferably at least 10 kHz, more preferably at least 50 kHz, still more preferably at least 100 kHz or at least 1000 kHz and most preferably at least 10 MHz. As an upper frequency limit that can be combined with all the lower limits, 20 GHz (gigahertz) is preferred. Therefore, high frequency means 1 kHz to 20 GHz, preferably 10 kHz to 20 GHz, 50 kHz to 20 GHz, 100 kHz to 20 GHz, 1000 kHz to 20 GHz, 10 MHz to 20 GHz. BRIEF DESCRIPTION OF THE DRAWINGS

[0129] The present invention will be described below in conjunction with embodiments, wherein: Figure 1 A part of the assembly of the present invention is shown. Figure 2 Show Figure 1 A partial enlarged view of Figure 3 Show Figure 1 The male outer conductor portion of the present invention, Figure 4a Simplified exploded diagram Figure 1 The assembly of the present invention, Figure 4b The assembly of the present invention including the female outer conductor part is shown in a simplified exploded view. Figure 5 A schematic diagram showing the steps of reducing the inner diameter of the connection, Figure 6 A schematic diagram showing a method according to the invention for producing an assembly according to the invention, Figure 7a shows an exemplary impedance curve over time (comparing the assembly according to the invention with a conventional assembly with a support sleeve), Figure 7b Exemplary reflection coefficient curves are shown over a range of frequencies (comparing the assembly of the present invention to a conventional assembly with a support sleeve). DETAILED DESCRIPTION

[0130] The same reference numerals used in the various figures denote the same or similar features, even if not all features denoted by a reference numeral are reintroduced in every figure.

[0131] Figure 1A partial longitudinal cross-sectional view of an assembly 40 according to the present invention is shown. The assembly 40 includes a plug connector 41 and a coaxial cable 4. The plug connector 41 includes an outer conductor portion 1, an insulating portion 2, and a male inner conductor portion 3. Alternatively, a female inner conductor portion 7 ( Figure 4b ) or generally speaking, the inner conductor part. The inner conductor part 3 is partially located inside the insulating part 2. The coaxial cable 4 has a cable sheath 18, a braided outer conductor 17 with metal wires, a shielding film 16, an insulator 15 and an inner conductor 14. The shielding film 16 in this embodiment refers to an optional part that does not necessarily have to be there.

[0132] The outer conductor part 1 has four recesses 19, which are located in the connecting part 21. Two of the recesses 19 ( Figure 1 The two recesses 19 are also located in the connection part 21, but in the area where the outer conductor stripping part 17b is not arranged. They are also diametrically opposed. The recesses are designed as grooves and are respectively located in the area 25 of the connection part 21, in which the metal wire is arranged between the inner wall of the connection part 21 and the cable sleeve 18. In other words, in this area 25, the outer conductor stripping part 17b is arranged around between the cable sleeve 18 and the outer conductor part 1. The other two recesses 19 are also located in the connection part 21, but in the area where the outer conductor stripping part 17b is not arranged. They are also diametrically opposed. The recesses are designed as grooves and are respectively located in the area 25. Figure 1 The plane has a ridge-like extension in the transverse direction.

[0133] The coaxial cable 4 has a first cable portion 22 which is located in the connecting portion 21 . It also has a second cable portion 23 which is located outside the connecting portion 21 immediately following the first cable portion 22 .

[0134] The outer conductor stripping portion 17b is made of metal wire. Figure 1 The cable area on the left in the middle is before the first cable part 22 in the direction of the plug-in side cable end. The cable sheath 18 and the insulator 15 are partially removed from here. The outer conductor stripping part 17b is rolled up and exists in the form of discrete metal wires, which are not crossed or overlapped, but exist in isolation along the longitudinal direction of the first cable part 22 (which corresponds to the longitudinal direction of the connecting part 21 here).

[0135] The inner diameter of the connecting portion 21 is slightly smaller than the diameter of the cable sleeve 18 in the uncompressed state. This means that the cable sleeve 18 is significantly compressed over the entire length of the connecting portion 21 (see in particular Figure 1 The area where the cable sheath 18 is compressed is the first part 24 .

[0136] The insulator 15 can also be optionally compressed over the entire length of the connecting portion 21 (not shown).

[0137] If the RTK031 coaxial cable is to be used as the coaxial cable 4, the inner diameter of the connection portion 21 can be reduced from 3.97 mm to 3.78 mm (which can correspond to the inner diameter of the connection portion 21 without the recess 19), for example. Alternatively, if the RTK044 coaxial cable is to be used as the coaxial cable 4, the inner diameter of the connection portion 21 can be reduced from 4.17 mm to 3.78 mm (which can correspond to the inner diameter of the connection portion 21 without the recess 19), for example.

[0138] The inner conductor 14 of the coaxial cable 4 is electrically and mechanically connected to the inner conductor part 3 of the plug connector 41 by crimping. The outer conductor 17 in the form of the outer conductor stripping part 17b is connected to the connecting part 21 of the outer conductor part 1 by pressure in a force-fitting manner. Due to the reduced inner diameter of the connecting part 21, there is also a form-fitting part. The left-hand recess 19 also additionally causes another more obvious form-fitting part.

[0139] Because of the depressions 19, the cable sheath 18 is further compressed in the adjacent areas. The insulator 15 is also compressed in the adjacent areas, as can be seen in FIG. Figure 1 As can be seen in FIG. Here, there is a clear form fit between the coaxial cable and the outer conductor. Through the structure, a large holding force is achieved at the good high-frequency performance of the assembly 40 of the present invention.

[0140] Figure 2 The upper area of ​​the connection part 21 and the first cable part 22 is shown in an enlarged manner. It can be seen that the outer conductor 17 inside the coaxial cable 4 has multiple layers. The outer conductor 17 is designed as a braid. Figure 2 (also Figure 1 ), the braid is simplified and shown as a stack of metal wires. The outer conductor stripping portion 17b is also shown as a single metal wire as expected. The metal wires are arranged side by side in a loop.

[0141] Figure 3 The outer conductor part 1 is shown separately. In the illustrated embodiment of the assembly 40 of the present invention, the depth of the recess 19 is 0.11 mm respectively (for simplicity, the reference numerals at the upper recess 19 are not shown). This numerical value is only an example. The outer diameter of the connection part 21 is, for example, 3.78 mm. The inner diameter is, for example, 3.38 mm. The diameter of the coaxial cable 4 is, for example, 3.5 mm. The diameter of the coaxial cable 4 including the outer conductor stripping part 17 b is, for example, 3.85 mm. That is, over the entire connection part 21 range, there is compression of the cable sheath 18 based on these exemplary values, although it is small in the area of ​​the metal wire of the connection part 21 where there is no outer conductor stripping part 17 b.

[0142] The inner diameter of the connection part 21 is reduced in the manufacturing method after the first cable part 22 is added (numerical example: see above). The inner diameter is 3.57 mm, for example, and the outer diameter is 3.97 mm, for example. The reduction of the two diameters of the connection part 21 is achieved, for example, by means of two half shells 30 (see Figure 5 ) is achieved by (virtually) full pressure, each half shell having a semi-cylindrical recess.

[0143] The outer conductor stripping portion 17b is turned over onto the cable sleeve 18 by, for example, a rotary wire brushing machine.

[0144] Figure 4a A simplified exploded diagram shows the Figure 1-3 Components of an assembly 40 according to the invention are shown in FIG. The inner conductor part 3 is connected to the inner conductor 14 by means of crimping. This is an assembly comprising a female connector 41. Figure 4b , a corresponding assembly 50 with a female plug connector (socket) is shown in a simplified exploded view. The outer conductor part 5 has in particular another structure with a tenon-shaped section at the plug-side end for receiving a male plug connector of complementary shape. The insulating part 6 is designed differently from the insulating part 2, and the female inner conductor part 7 is also designed differently from the male inner conductor part 3. The structure of the assembly 50 is similar to that of the assembly 40.

[0145] exist Figure 5 Schematically shows the steps of reducing the inner diameter of the connection 21. Two half shells 30, each with a semi-cylindrical recess, exert a force F on the connection 21. Since the inner diameter of the two semi-cylindrical recesses is slightly smaller than the (not yet reduced) outer diameter of the connection 21, the outer diameter and the inner diameter of the connection are reduced while maintaining a circular cross section (hollow cylinder). The connection 21 can be slightly extended as a result (because material must be displaced).

[0146] Figure 6 The method according to the invention for producing the assembly according to the invention is schematically shown.

[0147] In a first step S1, a device with a connection portion 21 (see Figure 1 ) of the outer conductor 1 (see Figure 1 ). An inner conductor portion 3 is also provided (see Figure 1 )、Insulation 2 (see Figure 1 ) and coaxial cable 4 (see Figure 1 ). The coaxial cable 4 has a cable sheath 18 from the outside to the inside (see Figure 1 ), with a metal wire braided outer conductor 17 (see Figure 1 ), shielding film 16 (see Figure 1 ), insulator 15 (see Figure 1 ) and inner conductor 14 (see Figure 1 ).

[0148] In a second step S2, the outer conductor segment 17b (see Figure 1 ) is stripped at one cable end. That is, the cable sheath 18 is removed at this cable end.

[0149] In the third step S3, the outer conductor stripping portion 17b is folded around the coaxial cable 4. The outer conductor stripping portion 17b is also folded onto the cable sleeve 18 of the coaxial cable 4 and brushed by a wire brushing machine. The braid of the outer conductor stripping portion 17b is broken up so that the metal wires are no longer connected to each other by overlapping and crossing. These metal wires are folded in the longitudinal direction of the coaxial cable 4 during the brushing process.

[0150] In the fourth step S4, a portion of the inner conductor 14 of the coaxial cable 4 is stripped in the cable region from which the outer conductor stripped portion 17b comes. The inner conductor 14 is connected to the inner conductor portion 3 by crimping.

[0151] In a fifth step S5 , the insulation part 2 is now pushed onto the inner conductor part 3 with its through-holes.

[0152] In a sixth step S6, the outer conductor part 1 is now forced onto the first cable part 22 with its connection part 21 through the insulating part 2. The outer conductor stripping part 17b is now clamped between the cable sheath 18 and the inner wall of the connection part 21.

[0153] In the seventh step S7, the inner diameter of the connection part 21 is reduced, wherein the reduction of the inner diameter of the connection part is carried out by means of two half shells 30, each half shell having a corresponding semi-cylindrical recess, wherein the two half shells 30 are pressed against the connection part 21 from the outside with the semi-cylindrical recesses, wherein the inner radius of these semi-cylindrical recesses is smaller than the outer diameter of the connection part 21 before the inner diameter is reduced.

[0154] In the eighth step, two radially opposite depressions 19 are respectively stamped into the connection part 21 at the front end and the rear end of the connection part 21 by means of corresponding tools. Figure 1 ) is a transverse groove. The cable sleeve 18 is compressed over the entire connection portion 21, while the insulator 15 is compressed only in the region of the first cable portion 22 where the recess 19 is located.

[0155] exist Figure 7a The impedance curve (ohm) according to the time range is shown in FIG. 1 with respect to the time in ps. The first dotted line shows the impedance curve in the case of an assembly (coaxial cable and connector) with a support sleeve. It forms an unfavorable minimum at about 200 ps and then an unfavorable maximum. The second dotted line shows the impedance curve in the case of an assembly of the present invention without a support sleeve but with a curl (depression on the outer conductor). The extreme values ​​have been significantly reduced. This is advantageous. The third dotted line shows a further more advantageous reduction without a support sleeve and without curling.

[0156] exist Figure 7b The reflection coefficient (dB) according to the frequency range (MHz) is shown in FIG. The solid line indicates a favorable limit that should not be exceeded. The first dotted line shows the curve of the reflection coefficient in the assembly (coaxial cable and connector) with a support sleeve. The limit is exceeded at higher frequencies. The second dotted line shows the curve of the reflection coefficient in the case of the assembly of the present invention without a support sleeve but with a curl (depression at the outer conductor). The limit is not exceeded. This is already favorable. The third dotted line shows a further more favorable reduction that is significantly below the limit without a support sleeve and a curl.

[0157] Reference numerals list 1: Outer conductor 14: Inner conductor 15: Insulator 16: Shielding film 17: Outer conductor 17b: Outer conductor stripping part 18: Cable sleeve 19: Depression 2: Insulation 21: Connection 22: First Cable Department 23: Second Cable Department 24: Part I 25: The connection area where the metal wire is arranged between the inner wall and the cable sleeve 3: Inner conductor 30: Half Shell 4: Coaxial cable 40: The assembly of the present invention (male) 41: Connector 5: Outer conductor 50: The assembly of the present invention (mother) 6: Insulation 7: Inner conductor (female) S1-S8: Method steps F: Force

Claims

1. A method for producing an assembly (40, 50) consisting of a plug connector (41) for high-frequency applications and a coaxial cable (4) or a component for such an assembly (40, 50), characterized in that: include: - providing an outer conductor part (1, 5), wherein the outer conductor part (1, 5) has at least one connecting part (21) with an inner wall, which connecting part is designed at least partially as a hollow cylinder, - providing an inner conductor part (3, 7) and an insulating part (2, 6), - providing a coaxial cable (4), wherein the coaxial cable (4) comprises an outer conductor (17) comprising a metal wire, an inner conductor (14) arranged at least partially inside the outer conductor (17), an insulator (15) arranged at least partially inside the outer conductor (17) and at least partially surrounding the inner conductor (14), and a sheath (18) at least partially surrounding the outer conductor (17), - stripping an outer conductor section (17b) of the coaxial cable (4), - folding the outer conductor stripping portion (17b) around the first cable portion (22) of the coaxial cable (4) and arranging the metal wire outside the cable sheath (18) in the first cable portion (22), - assembling the coaxial cable (4) and the outer conductor part (1, 5) to form the assembly (40, 50) or the component, wherein the outer conductor part (1, 5) is mounted on the first cable part (22) by means of the connecting part (21) of the outer conductor part (1, 5), - reducing the inner diameter of the connecting part (21) so that the cable sleeve (18) is compressed at least in a first part (24) of the connecting part (21) and the metal wire is pressed against the inner wall of the connecting part (21) and the cable sleeve (18), The first portion (24) includes at least 70% of a region (25) of the connecting portion (21) where the metal wire is arranged between the inner wall and the cable sleeve (18).

2. The method according to claim 1, characterized in that The connecting part (21) is completely designed as a hollow cylinder.

3. The method according to claim 1 or 2, characterized in that: The first portion (24) includes the entire region (25) of the connecting portion (21) where the metal wire is arranged between the inner wall and the cable sleeve (18).

4. The method according to any one of claims 1 to 3, characterized in that The reduction of the inner diameter of the connecting part (21) is achieved by means of two half shells (30), each of which has a corresponding semi-cylindrical recess, wherein the two half shells (30) are pressed onto the connecting part (21) with these semi-cylindrical recesses, wherein the inner radius of these semi-cylindrical recesses is smaller than the outer diameter of the connecting part (21) before the inner diameter is reduced.

5. The method according to any one of claims 1 to 4, characterized in that The inner diameter of the connecting portion (21) is reduced by a maximum of 5%.

6. The method according to any one of claims 1 to 5, characterized in that The method further includes: - at least one inwardly directed depression (19) is introduced into the connecting portion (21), wherein the depression has a smaller axial extension than the first section (24).

7. The method according to claim 6, characterized in that The at least one recess is incorporated into a first portion (24) of the connecting portion (21).

8. The method according to claim 6 or 7, characterized in that: The at least one recess is introduced into a region (25) of the connecting portion (21) where the metal wire is arranged between the inner wall and the cable sleeve (18).

9. The method according to any one of claims 6 to 8, characterized in that By incorporating the at least one recess (19), the insulation (15) of the coaxial cable (4) is compressed.

10. The method according to any one of claims 1 to 9, characterized in that The assembly (40, 50) does not have an additional support clamp or support sleeve or crimping clamp and an additional crimping tube arranged around the first cable part (22) and / or the insulating body (15).

11. The method according to any one of claims 1 to 10, characterized in that The outer conductor part (1, 5) is designed as a tube.

12. The method according to any one of claims 1 to 11, characterized in that In the first cable section (22), there is a reduction in diameter of the coaxial cable (4) due to compression of the cable sheath (18), wherein the diameter reduction is at least 4%, preferably 4% to 15%, compared to the second cable section (23).

13. The method according to any one of claims 1 to 12, characterized in that After the inner diameter is reduced, the connection has one or more of the following characteristics: Length ranges from 5 to 15 mm, The wall thickness is in the range of 0.1 to 0.5 mm. The inner diameter is in the range of 3.0 to 4.0 mm.

14. An assembly (40, 50) consisting of a plug connector (41), in particular for high-frequency applications, and a coaxial cable (4), produced by means of a method according to one of claims 1 to 13, It is characterized in that The plug connector (41) has: - an outer conductor part (1,5), - an inner conductor part (3, 7) which is arranged at least partially within the outer conductor part (1, 5), an insulating part (2, 6) which is at least partially arranged inside the outer conductor part (1, 5) and at least partially surrounds the inner conductor part (3, 7), The outer conductor part (1, 5) has at least one connecting part (21) with an inner wall, wherein the connecting part (21) is at least partially designed as a hollow cylinder. Wherein, the coaxial cable (4) has: - an outer conductor (17) comprising a metal wire, - an inner conductor (14) arranged at least partially within the outer conductor (17), an insulator (15) arranged at least partially within the outer conductor (17) and at least partially surrounding the inner conductor (14), - a cable sheath (18) at least partially surrounding the outer conductor (17), The coaxial cable (4) has a first cable portion (22) arranged inside the connecting portion (21). The coaxial cable (4) has a second cable portion (23) arranged outside the connecting portion (21). In the first cable section (22), the outer conductor stripping section (17b) of the coaxial cable (4) is arranged around the outer side and close to the cable sheath (18). The metal wire of the outer conductor stripping portion (17b) is located between the cable sleeve (18) and the outer conductor portion (1, 5) of the connector (41) and is in contact with the inner wall of the connecting portion (21) and the cable sleeve (18). In this case, at least the cable sleeve (18) is compressed by the outer conductor part (1, 5) at least in a first section (24) of the connecting part (21).

15. Use of the assembly according to claim 14 for transmitting high frequencies or high frequency signals, as a high frequency connector, in a high frequency connector or for manufacturing a high frequency connector.

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