DE102010035484B3 - Outer conductor contact element for coaxial cable ends - Google Patents

Outer conductor contact element for coaxial cable ends

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Publication number
DE102010035484B3
DE102010035484B3 DE201010035484 DE102010035484A DE102010035484B3 DE 102010035484 B3 DE102010035484 B3 DE 102010035484B3 DE 201010035484 DE201010035484 DE 201010035484 DE 102010035484 A DE102010035484 A DE 102010035484A DE 102010035484 B3 DE102010035484 B3 DE 102010035484B3
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DE
Germany
Prior art keywords
outer conductor
sleeve
15b
coaxial cable
contact element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE201010035484
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German (de)
Inventor
Ralf Häntsch
Walter Staniszewski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kathrein SE
Original Assignee
Kathrein SE
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Filing date
Publication date
Application filed by Kathrein SE filed Critical Kathrein SE
Priority to DE201010035484 priority Critical patent/DE102010035484B3/en
Application granted granted Critical
Publication of DE102010035484B3 publication Critical patent/DE102010035484B3/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518Connection to outer conductor by crimping or by crimping ferrule

Abstract

Outer conductor contact element for coaxial cable ends, with the following features
In the interior of an outer conductor sleeve (3) at least one shaped element (15 ', 15a, 15b) is provided, at least in a longitudinal zone (Z) of the outer conductor sleeve (3),
- The at least one mold element (15; 15a, 15b) comprises at least one in the interior of the outer conductor sleeve (3) of the sleeve inner surface (3c) and lifting about the axial central axis (X) helically extending form element (15) or more extending in the axial longitudinal direction and in the circumferential direction offset from one another arranged mold elements (15; 15b),
The external conductor sleeve (3) is at least in part length turned on its connection side (13a) onto a coaxial cable end (1 ') of a coaxial cable (1) or can be twisted, plugged or plugged,
- The outer conductor sleeve (3) is placed on a Koaxialkabelende (1 ') or placed so that the at least one or more form elements (15; 15a, 15b) below the cable sheath (11) in the outer conductor (9) or below the Outer conductor braid (9 ') in the outer conductor foil ...

Description

  • The invention relates to an outer conductor contact element for coaxial cable ends according to the preamble of claim 1.
  • An electrical connection connection, in particular for the connection of an outer conductor of a coaxial cable, for example, from EP 1 573 862 B1 known. The connection connection comprises a plug-in element with a plug-in section and a sleeve extension. The plug-in portion can be plugged into a receiving opening of an electrically conductive shielded housing. The sleeve extension of the plug element to be connected to the outer conductor of the coaxial cable has an inner bore which is at least slightly larger than the outer diameter of a stripped outer conductor of a coaxial cable end. The axial length of the inner bore passes through almost the entire axial length of the plug element, wherein at the end of the inner bore thus formed an annular shoulder is provided to form a stepped bore. As a result, the stripped to the outer conductor coaxial cable can be inserted to the stop on this annular shoulder in the plug-in element. Before the further connection with the receiving opening or after the connection to a coupling device, a soldering process can then be carried out in order to connect the outer conductor to the electrically conductive plug element with good electrical conductivity by means of the solder.
  • A device for connecting a coaxial cable to a device housing is also known from EP 1 709 711 B1 known.
  • According to this prior publication, a sleeve-shaped connection element is proposed, which is provided in the circumferential direction with a specifically formed profile groove, about which the coaxial cable end can also be mechanically anchored in a coupling element. Also in this prior art, the outer conductor is preferably soldered into the sleeve.
  • In addition, coaxial connectors and in particular outer conductor sleeves have become known, which can be plugged onto a stripped coaxial cable end and mechanically anchored there and electrically connected to the outer conductor of the coaxial cable. In this case, usually the outer insulation is removed at the coaxial cable end in a certain axial length, until the underlying there is usually made of an outer conductor braid and an outer conductor film outer conductor exposed. The outer conductor is folded away from the cable end, then aufzustecken a corresponding outer conductor sleeve and with its protruding away from the Koaxialkabelende circumferentially offset resilient contact tongues to be pressed onto the outer conductor braid. If necessary, a lock nut can be counter-screwed, which runs over a conical contact shoulder with the main conductor sleeve plug-in element and thereby generates radial pressing forces for contacting the contact tongues with the outer conductor braid.
  • In other words, it is also known to connect outer conductor sleeves to a coaxial cable end by means of clamping or crimping with the outer conductor of the coaxial cable.
  • In addition, an outer conductor sleeve has become known, which is provided at its connection end with an inner thread extending around its central axis. Also in this case, a Koaxialkabelende is prepared so that the inner conductor end freely protrudes over the front end of the coaxial cable over a certain axial distance, wherein the adjoining outer conductor insulation exposed and the outer conductor forming braid or a possibly provided outer conductor foil beaten back over the outer shell and is folded over, then screw a sleeve with internal thread on the outer shell. In this case, the outer conductor foil and / or the outer conductor braid is clamped between the screwed-on sleeve and the outer jacket of the coaxial cable.
  • In addition, a so-called compression plug has become known, the sleeve-shaped plug-in projection is pressed between the outer conductor foil or the outer conductor braid or between the outer conductor braid and the outer conductor sleeve and the outer insulation, including tools is required, usually at least one pliers. In this case, the sleeve is plugged in a straight line to the suitably prepared coaxial cable and clamped by means of clamps in the rule, so that the sleeve is non-detachably connected and not reusable connected to the coaxial cable end.
  • A coaxial cable with attached coaxial cable connector is out of the US Pat. No. 6,402,550 B2 known. A coaxial cable is described with an inner conductor and a sleeve-shaped dielectric surrounding the inner conductor, wherein the dielectric is surrounded by a foil laminated with aluminum.
  • Then a coaxial cable connector is to be attached, wherein the sleeve body may be provided with a smooth inner surface or with a provided on the inner surface helical or screw structure. Regardless of these different configurations, the slip-on sleeve of the connector should be provided with longitudinal slots to place it beneath the external insulation on the aluminum-clad outer conductor foil postpone or turn up. Since this does not sufficiently secure fit and sufficient shielding can not be guaranteed, in all these embodiments, the use of an additional clamping ring is necessary, which must be pushed adjacent to the front end of the plugged sleeve on the outer insulation of the cable to thereby ensure a sufficiently secure interference fit ensure long-term permanent anchoring and contacting of the sleeve at the cable end.
  • A coaxial cable connection system is also known from EP 1 447 881 A2 to be known as known. A cable outer conductor which can be removed from this, in contrast, for example, to the abovementioned prior publication, does not consist of a smooth foil or a braid, but instead has a corrugated circumferential helical structure which is more complex to produce. This makes it possible to use a connector whose inner surface is adapted to the outer surface configuration of the outer conductor of the coaxial cable and so far can be turned on this outer conductor contour. Since such an unscrewing of an outer conductor sleeve leads to the thread structure of the outer conductor of the coaxial cable to no permanently secure anchoring and contacting, an additional crimping of the corresponding connection area is necessary. Therefore, in this pre-publication also spoken by a crimp connector.
  • A crimp sleeve for attachment to a coaxial outer conductor is also from the DE 103 43 558 A1 refer to. In order to make the crimp barrel assembly easier, it is provided that, for example, in the case of a coaxial cable, the crimp sleeve can be pushed with its cylindrical connecting jacket on the outer surface of the dielectric, in such a way that the sleeve with its wedge-shaped leading Einschneidrand on the dielectric below of the shield serving insulation jacket is introduced. Since the cylindrical sleeve body is provided internally with a wood thread, this wood thread is notched into the dielectric, wherein the outer conductor serving the electrical contact is applied loosely on the outer circumference of the sleeve. Since there is no permanent and uniform connection between the outer conductor insulation and the attached sleeve due to this condition, another sleeve-shaped contact element must be postponed and a crimping be performed.
  • A coaxial connector for coaxial cables with full dielectric is also from the DE 2 159 867 A refer to. Again, a solution is proposed in which the aufzudrehende sleeve is provided only on its inner side, namely on the inner side facing the insulation layer with cutting threads, which should make it possible to unscrew the sleeve on the dielectric and thereby lift the electrically conductive outer conductor braid from the dielectric and to widen. Therefore, an additional screw-on union nut must always be used for good electrical contact to produce so high radial pressing forces that the end of the widened outer conductor braid on the outer circumference of the screwed sleeve better and more firmly permanently applied by the union nut.
  • Also the DE 690 16 891 T2 describes a coaxial cable connector, which is due to its specific embodiment prior to assembly in the form of two metallic parts, which is to form a one-piece metal unit after assembly. The one part comprises a support, a collar and a nut, wherein the second part comprises a sleeve. To assemble the two parts, first slide the sleeve onto the end of the cable to then insert the appropriately prepared end of a coaxial cable into the so-called post and under the collar of the integral end piece. By the interference fit between the sleeve and the end piece, the wire mesh of the outer conductor is to be pressed against the integral end piece in order to ensure a good fit and to produce sufficient shielding.
  • The object of the present invention, in contrast, is to provide an improved contact element for outer conductors of flexible coaxial cables.
  • The invention is solved according to the features specified in claim 1. Advantageous embodiments of the invention are specified in the subclaims.
  • The outer conductor sleeve according to the invention for flexible coaxial cable ends is characterized, inter alia, by the fact that on the inner wall of the outer conductor sleeve at least in a partial length elevating mold elements are provided over the inner wall, which extend or extend in the axial direction or helically around the central axis of the outer conductor sleeve. The dimensioning is such that the free inner cross section between the form elements in axial viewing of the outer conductor sleeve is smaller than the diameter of the outer conductor of the coaxial cable to be connected. On the other hand, the inner cross section of the surface of the outer conductor sleeve is equal to or slightly larger than the outer conductor diameter of the coaxial cable to be connected. This opens up the possibility that a corresponding outer conductor sleeve can be directly plugged or unscrewed onto the outer conductor of a coaxial cable end to be connected, without the outer conductor being in the form of a Outer conductor braid or in a single- or double-sided electrically conductive coated outer conductor foil away from the outer conductor end on an unstripped portion of the coaxial cable outer insulator must be folded.
  • In particular, in the current generation of coaxial outer conductors, these outer conductors consist only partially of a woven or braided material but often of a not only one but double-sided metal-coated (for example, aluminum-coated) thin film, said outer conductor often glued to the dielectric surrounding the inner conductor are. This is especially true when the outer conductor consists of the above-mentioned generally double-sided metal-coated film.
  • On the other hand, since the dielectric on the other hand is relatively soft, previous attachment methods for making electrical contact with an outer conductor sleeve to the outer conductor of a coaxial cable end, in particular by clamping or crimping, have proved to be unfavorable since, given a corresponding deformation of the dielectric away from the ideal cylindrical shape, an oval Cross sectional shape deteriorate the electrical connection properties.
  • On the other hand, by using the outer conductor sleeve according to the invention an ideal cylindrical cross-section for the outer conductor and above all the dielectric surrounding the inner conductor is maintained, and this with a simultaneous "stiffening" of the connecting end of the coaxial cable. On the other hand, the connecting sleeve provided according to the invention can be so thinly dimensioned, d. H. have such a small wall thickness that in fact it does not or hardly exceeds the outer diameter of the provided with an outer conductor insulation coaxial cable. Only to optimize the handling, the outer conductor sleeve can be provided with a corresponding reinforced knurling section, with a connection surface for the attachment of tools or the like.
  • This opens up in the context of the invention, the possibility to use such a prepared coaxial cable end, for example, junction boxes, as when tightening or clamping of electrical connection means under the action of a radial force on the inventively provided connection sleeve this maintains its ideal cylindrical shape.
  • Since the form elements in particular in the form of the internal thread rounded, so are not designed cut-shaped, it is ensured that when plugging or unscrewing the outer conductor sleeve z. B. on the outer conductor foil this is neither damaged during unscrewing or disassembly. In this case, the form of axially or helically formed form elements directly into the dielectric or via the outer conductor film indirectly in the dielectric press or notch, without injuring or cutting in the latter case, the outer conductor foil or the corresponding outer conductor braid. In other words, the thin-walled outer conductor sleeve forms a thread in the outer conductor film or in the dielectric, wherein in the current generation of coaxial cables often a dielectric is used, which is relatively wel (eg. From foamed polyethylene PE). In addition, the outer conductor foils in today's generation of coaxial cables are characterized by their relatively high ductility and tear resistance.
  • Another significant advantage is that the outer conductor sleeve can be pushed or screwed onto a one or two-sided metal-coated and glued on the dielectric outer conductor foil without any tools, and that while the outer conductor is indeed deformed, and so strong that the deformation to takes place in the underlying dielectric, but nevertheless the outer conductor film is not damaged or slotted. Thus, in the context of the invention, a thread-forming chip-free and germ-destroying foil causing fixation of the sleeve on the prepared Koaxialkabelende instead, with an optimal electrically permanent contact and a high clamping forces having mechanical fixation. The fact that the dielectric does not undergo any change in its material thickness also contributes to the above-mentioned advantage that a coaxial cable end provided with a sleeve according to the invention can also be used without problem for connecting connections, for example in an antenna socket, and there when tightening a contact - And fixing screw in the antenna box sleeve of the invention prevents the dielectric undergoes a deformation and thereby the transmitted antenna signal is deteriorated.
  • Listed below are some of the main advantages that can be achieved within the scope of the invention, namely:
    • - The outer conductor sleeve according to the invention is designed detachable, it is also reusable. Ie. it can be turned on at new cable ends but also at previously used cable ends again;
    • - The outer conductor sleeve according to the invention can be assembled and disassembled without tools.
    • - The Außenleierhülse invention is electrically very well contacted with the outer conductor of a coaxial cable that there are no major changes in the outer conductor diameter in the contact area, whereby the Characteristic impedance of the coaxial line remains virtually unchanged.
    • - The outer conductor sleeve according to the invention contributes to a high screen tightness.
    • - Especially when the outer conductor sleeve according to the invention is provided with an internal thread, there is a high pull-out protection and optimal strain relief.
    • - In addition, a large tolerance range for outer conductor diameter is possible within the scope of the invention.
    • - The outer conductor sleeve according to the invention ultimately also contributes to a stiffening of the outer conductor, which is why a cable end provided with the outer conductor sleeve according to the invention is also suitable for clamping and plug connections, and this with an extremely small footprint.
    • - The outer conductor sleeve according to the invention is also suitable for coaxial cable connectors.
    • - The outer conductor sleeve according to the invention is particularly suitable for coaxial cable, in which the outer conductor is provided in the form of a coated outer conductor foil, which is glued to the surrounding the inner conductor dielectric.
    • - Especially with an outer conductor sleeve with internal thread, which forms a thread in the outer conductor and the dielectric, there is an optimal anti-rotation lock.
  • Above all, the invention also provides significant advantages over the known in the prior art Aufdrehsteckern, which also consist of a sleeve with an internal thread, but which are turned on an outer jacket of a coaxial cable. In this case, the outer sheath of the coaxial cable would secure the screw connection, which, however, usually consists of a much harder material than the dielectric of the coaxial cable. In other words, the inventive sleeve is much easier and more efficient to spin on the dielectric, which is made of a softer material. In addition, less space is required by the sleeve according to the invention, d. H. The sleeve according to the invention, since it is turned on the dielectric or the adhered electrically conductive outer conductor foil surrounding the dielectric, can be realized with a smaller diameter. In addition, folded braid veins of an outer conductor braid can be severed in the known prior art Aufdrehsteckern, in contrast to the inventive solution. Moreover, in the solution according to the invention the Aufdrehmoment is not adversely affected by an undefined Umlegen of the outer conductors forming braid cores, as is the rule in the art.
  • The invention will be explained in more detail with reference to embodiments. In detail:
  • 1a an axial cross section through a coaxial cable end;
  • 1b an axial section through an outer conductor sleeve according to the invention;
  • 1c an axial section through a coaxial cable end, on which the outer conductor sleeve according to the invention is placed;
  • 2 an axial cross section of a slightly modified embodiment with a stepped outer conductor sleeve;
  • 3 : one opposite 2 modified embodiment with an outwardly projecting annular shoulder on the outer conductor sleeve;
  • 4 a further modified embodiment with a cylindrical extension for the outer conductor sleeve;
  • 5 a larger outer race sleeve dimensioned in the axial length;
  • 6 a modified embodiment with a separate additional provided outer or shroud ring;
  • 7 a further modified embodiment;
  • 8th a further embodiment using a union nut;
  • 9a : An axial section through a Koaxialkabelende with an outer conductor in the form of a glued coated on both sides, electrically conductive outer conductor foil and a braid, wherein the braid is not spread;
  • 9b An embodiment based on the coaxial cable according to 9a with attached outer conductor sleeve;
  • 10a an axial section through an outer conductor contact element;
  • 10b a spatial representation of the outer conductor sleeve according to the invention;
  • 10c a partial cross section through a thread of the outer conductor sleeve;
  • 11 a spatial representation of a modified outer conductor sleeve with a knurling provided on the outside;
  • 12 a further modified embodiment of an outer conductor sleeve with a flattening provided on the outside;
  • 13a : An axial section through a modified embodiment with a plurality of mold elements extending in the axial longitudinal direction;
  • 13b a cross-sectional view or side view of the embodiment according to 13a in the area of the form elements; and
  • 13c FIG. 3 is an axial sectional view through that in the embodiment according to FIG 13a and 13b used outer conductor sleeve.
  • In 1a is a schematic axial longitudinal section of a coaxial cable 1 ie a suitably prepared coaxial cable end 1' and in 1b in axial section, a first embodiment of an outer conductor sleeve according to the invention 3 shown, which is usually made of metal.
  • The coaxial cable end 1' is prepared according to an outer conductor sleeve according to the invention 3 sit up.
  • The coaxial cable is known to comprise an inner conductor 5 , a dielectric surrounding the inner conductor 7 , An outer conductor surrounding the dielectric 9 (sleeve or cylindrical outer conductor 9 ) and a surrounding outer insulation 11 , which in the following partly also as isolation jacket 11 referred to as.
  • To prepare the coaxial cable end 1' is from the insulation jacket 11 , the outer conductor 9 , and the dielectric 7 so much material has been removed that a corresponding end section 5 ' of the inner conductor 5 projects axially. Also from the outer conductor 11 a certain material has been removed end, so that in the embodiment shown, the outer conductor 9 even before the dielectric 7 ends, but does not have to end. In the illustrated embodiment, the outer conductor 9 from an outer conductor foil 9 '' and an outer conductor braid 9 ' , which is the outer conductor foil 9 '' surrounds, and which end in the illustration according to 1a and 1c from the outer periphery of the dielectric 7 , ie here also from the outer circumference of the outer conductor foil 9 '' , lifted and thus spread. The mentioned outer conductor foil 9 '' It usually consists of a film which is coated on at least one side and usually on both opposite sides with a metallic, ie electrically conductive layer. This outer conductor foil is then adhesively bonded to the dielectric, that is to say permanently connected to the dielectric.
  • The insulation jacket 11 is the shortest and ends earliest related to the farthest axially projecting end-side inner conductor end 5 '' ,
  • The outer conductor sleeve according to the invention 3 summarizes one of the cylindrical shape at least coming close sleeve wall 3a with a sleeve outer surface 3b and a sleeve inner surface 3c on. As well in 1a as in 1b and also in the following figures, the longitudinal or central axis of the coaxial cable or the outer conductor sleeve is indicated by X in each case. Apart from the form elements discussed below, the coaxial sleeve is generally rotationally symmetrical.
  • On the cable connection side 13a is the sleeve wall 3a with a conical flattening 3d provided, which extends over a certain axial path length, in which the sleeve wall 3a becomes increasingly thinner. In other words, the outer circumference in this area increases to the cable connection side 13a increasingly off. The to the cable connection side 13a opposite open connection side is with reference numerals 13b characterized.
  • As is apparent from the cross-sectional view according to 1b can also be seen, rises in the connection sleeve 3 from the inner surface 3c inwardly projecting a mold element 15 , In the embodiment shown, a helical shaped element 15a which is an internal thread 15'a forms.
  • To the thus formed outer conductor sleeve at the cable end 1' to connect, the outer conductor sleeve 3 with her connection end 13a on the cable end 1' fitted and then rotated in the corresponding direction of rotation, with the helical shaped elements 15 . 15a So the internal thread 15'a in the outer conductor foil 9 '' and the underlying dielectric 7 notches and thus the outer conductor sleeve increasingly on the cable end 1' is turned on, which is easy to do, since the outer conductor film usually on the dielectric 7 is glued, so it is not displaceable relative to the dielectric.
  • In this case, the outer conductor sleeve 3 with its wedge-shaped flattening in the direction of insertion 3d below the outer conductor braid 9 ' on the outer conductor foil 9 '' and the underlying dielectric 7 turned up, with simultaneous slight spreading, ie widening of the outer conductor braid 9 ' as shown in the illustration 1c can be seen.
  • The Aufdrehbewegung can be done particularly easily, since the dielectric 7 usually made of not too hard, but rather softer material, namely often made of foamed polyethylene PE, which has a low dielectric constant, which is why this material is preferred. Due to the widening of the outer conductor braid, it lies over the entire surface under sufficient prestressing on the outer conductor sleeve made of metal or at least electrically conductive surfaces 3 , whereby an optimal electrical contact with both the outer conductor braid 9 ' as well as the outer conductor foil 9 '' is guaranteed. In addition, an optimal pull-out protection is combined with an optimal anti-rotation lock and also achieves optimal strain relief.
  • In the embodiment according to 2 has the outer conductor sleeve 3 at her to the end of the connection 13a opposite open connection side 13b a circumferential gradation 17 on, so that thereby a stepped axial bore 19 with a first bore cross section 19a and an adjoining second larger bore cross-section 19b is formed. As a result, the maximum Aufdrehbewegung the outer conductor sleeve 3 on the cable end 1' limited, since in this case the stop ring thus formed 17a at the front end of the dielectric 7 strikes.
  • In the variant according to 3 is a corresponding stop ring 17b not provided on the inside but outboard, namely in the form of a connection to the end 13b expanding gradation 17 , which are not at the front end of the dielectric 7 but at the front end of the insulation jacket 11 runs. Optionally, a remainder 9a of the widened outer conductor network 9 ' between the front end of the insulation jacket 11 and the gradation 17 be sandwiched.
  • In the embodiment according to 4 is the outer conductor sleeve 3 ie, the radially outwardly projecting stop ring 17b , with one from the connection end 13b straightened cylinder neck 17c provided that the outside insulation 11 ie the insulation jacket 11 , yet overlaps over an axial length outside. This also causes the outer circumference of the insulation jacket 11 still over a certain axial distance from the outer conductor sleeve 3 not only embraced but also protected. The radial width of this annular groove 17b therefore corresponds approximately to the thickness of the insulation jacket 11 plus the thickness of the outer conductor braid 9 ' , This also contributes to a certain stiffening (kink protection) of the so with the outer conductor sleeve 3 connected coaxial cable.
  • In the variant according to 5 is the outer conductor sleeve 3 formed so that the inner conductor shown in the preceding figures 5 not over the open connection end 13b is over but at least just before the front-side open connection end 13b inside the cylindrical connection sleeve 3 ends.
  • In the embodiment according to 6 is in deviation from the embodiment according to 4 the outer conductor sleeve 3 not with a cylindrical extension 17b provided, the part of the outer conductor sleeve 3 is, but instead is a separate Aufsteckzylinder 21 intended. This is preferably pushed further away from the actual cable end during assembly of the outer conductor sleeve, where it is loose on the outer circumference of the insulation jacket 11 rests. After mounting the outer conductor sleeve 3 under widening of the outer conductor braid 9 ' and thus also with slight expansion of the insulation jacket 11 can then the Aufsteckzylinder 21 be moved in the direction of cable end, until it reaches the maximum radially outwardly protruding gradation 17 reached and strikes there.
  • As a result, an increased pull-out protection and Losdrehsicherheit is guaranteed.
  • In the variant according to 7 is only the inner conductor 5 by removing the dielectric, the outer conductor and the insulation sheath 11 been released. In other words, end dielectric 7 , Outer conductor 9 and insulation jacket 11 more or less in a same plane perpendicular to the extension direction X of the coaxial cable extending plane, in which case the outer conductor sleeve 3 with a radially projecting flange 23 is provided, which then at the front end of the insulation jacket 11 and the outer conductor 9 is applied. The outer conductor sleeve 3 in turn, forms a thread in the outer conductor foil when untwisting 9 '' and in the underlying dielectric 7 and at the same time widens the outer conductor braid 9 ' on. Depending on the axial length of the outer conductor sleeve 3 the inner conductor can come to rest within the outer conductor sleeve (as in 7 is shown) or via the open connection end 13b survive as exemplified by the 1 to 4 is shown.
  • at 8th it is a modification of the embodiment according to 4 , In the embodiment according to 8th is still a union nut 25 provided, the cable end towards a radial recess 25a with an internal thread provided there 25b which then applies to an external thread 17'c the cylindrical extension 17c the outer conductor sleeve 3 can be screwed on.
  • Because the union nut 25 away from the cable end with a decreasing inner diameter to form a slope 25c , ie oblique or tapered abutment shoulder 25c is formed, when tightening the nut is the contact angle 25c increasingly more on the extended in the outer conductor sleeve outer diameter of the insulation jacket 11 turned up, causing radial pressing forces in the outer conductor sleeve 3 be generated. In other words, the cone leads 25c for increasing the clamping forces with which the cable sheath 11 is pressed. This also contributes to an increase in the pull-out and Losdrehsicherheit. In addition, also in this embodiment, similar to the variant according to 4 and 6 also ensures improved kink protection of the cable end.
  • Through the described positioning of the outer conductor sleeve within the actual outer conductor 9 also results from the resulting spreading of the outer conductor braid 9 ' that a theoretical risk of short circuit - as in the prior art - is avoided because the Flechtadern 9 ' and the inner conductor are clearly separated from each other by the interposed outer conductor sleeve.
  • In the embodiment according to 9a and 9b it is now an embodiment in which the outer conductor sleeve has a larger inner diameter than the outer conductor braid 9 ' having. The outer conductor foil 9 '' in turn, from a film material, which is preferably coated on both sides with a metallically conductive layer. The outer conductor foil thus preferably has not only on the inner side, ie the dielectric 7 facing sides, or on its outside, so the outer conductor network 9 ' , but on both sides of a metallically conductive layer. The outer conductor foil thus formed 9 '' is usually full surface with the outer jacket of the dielectric 7 bonded.
  • In this case, the outer conductor sleeve according to the invention 3 with its form elements, ie its helical shaped element based on the embodiments shown 15a forming the internal thread 15'a over the outer conductor network 9 ' be turned up, with the internal thread 15'a over the outer conductor network 9 ' and the outer conductor foil 9 '' in the dielectric 7 buried and notched, as shown by the sectional view according to 9b is clarified.
  • The above-described method of attachment of the outer conductor sleeve 3 but also works with an outsider as well 9 , for example, only from a Außenleitergeflecht 9 ' or only from an outer conductor foil 9 '' consists.
  • The illustrated form elements 15 . 15a . 15'a are provided in a longitudinal zone Z, which extend in a partial length of the axial total length of the outer conductor sleeve about the central longitudinal axis X, that is from the inner surface 3c the outer conductor sleeve to rise inwards, usually radially. This zone may be at a distance from the connection end 13a start and at an even greater distance to the terminal end 13b end up.
  • Based on 10a . 10b and 10c is the previously explained embodiment of a Außenleierhülse 3 again shown in enlarged axial section, in a spatial representation and in a section to illustrate that the form elements 15 at their respective inner surface or inner wall 3c the most remote survey 16 are rounded, so the thread crests are rounded so that when unscrewing the threaded sleeve according to the invention, in particular when unscrewing the outer conductor foil 9 '' These are not caused by too pointed thread elevations 16 can be severed and hurt.
  • By this thread design, that is the design of the form elements 15 results in that by turning up the outer conductor sleeve relative to the dielectric and the surrounding the dielectric outer conductor foil is thread-forming, so a corresponding negative thread form from the outside into the dielectric 7 and the outer conductor foil 9 '' can memorize. Furthermore, in the threaded area, the realization of a trilobular geometry is possible, whereby smaller Aufdrehmomente can be realized.
  • In addition, the beginning is like the end 16a respectively. 16b the form elements 15 , here so the internal thread 15'a with a corresponding flattening 16 ' provided, whereby the internal thread 15'a when turning on the cable end, ie when twisting on the dielectric 7 and the outer conductor foil 9 '' is formed thread forming. As well as the corresponding threaded end 16b is provided with a corresponding flattening, it is also ensured here that when twisting the outer conductor sleeve neither the dielectric nor the outer conductor, for example in the form of the outer conductor braid or the outer conductor foil is injured, in particular is severed.
  • Likewise, the threaded end 16b for example, be executed blocking against loosening.
  • Based on 11 is shown that the outer conductor sleeve 3 at least in an axial portion with a sleeve portion 27 may be provided, the gripping surfaces 28 includes, for example in the form of a knurling shown 28 ' , As a result, the up but also the twisting on a cable end is much easier. In the embodiment according to 12 is also an attack surface 30 at the sleeve outer surface 3b provided, for example in the form of a flattening 30 ' , This flattening can serve as a grip surface or as a tool engagement surface.
  • Finally, a still slightly modified embodiment according to the 13a to 13c referenced, in which a corresponding outer conductor sleeve 3 is shown, which may be designed from the basic structure according to the embodiments described so far.
  • Different from the preceding embodiments is that as internal protruding form elements 15 ie as within the outer conductor sleeve 3 over the sleeve inner surface 3c elevating form elements 15 longitudinally extending form elements 15b are provided, in particular in the form of so-called ribs or webs 15'b , These ribs or webs should be rounded in the region of their highest elevation, where also these features 15 preferably in the insertion direction, ie at the beginning 16a as at the end 16b with a corresponding flattening 16b are provided. These form elements in the form of ribs or webs are preferably radially, ie perpendicular to the corresponding portion of the cylinder wall 3a of the supervisor 3 towards the inside and pointing to their beginning and their end over the entire length, similar to the thread-like form elements 15a . 15'a , an equal radial height. They extend in the axial longitudinal direction X of the outer conductor sleeve, wherein as a rule a plurality of such web or rib-shaped form elements 15b offset in the circumferential direction to each other are arranged, preferably at the same height, based on the longitudinal extent of the outer conductor sleeve 3 , The zone Z, that is to say the longitudinal zone Z, in the axial longitudinal direction X of the mold elements 15 . 15a . 15b etc. may vary within wide ranges and between 10% to 200% of the diameter of the outer conductor sleeve 3 be, preferably between 20% and 150%, in particular between 30% and 100%. In other words, the length should preferably be more than 10%, 20%, 30%, 40% or 50% of the diameter of the outer conductor sleeve and preferably less than 200%, in particular less than 150%, 100%, 90%, 80%, 70%, 60% or in individual cases even less than 50% of the diameter of the outer conductor sleeve make.
  • The height of the bar-shaped or helical shaped elements can amount to, for example, 10% of the diameter of the outer conductor sleeve, ie in particular between 1% and 20%, 2% and 18%, 4% and 16%, etc. This height is preferably between 8% and 12% of the diameter of the outer conductor sleeve 3 ,
  • The thickness of the form elements is to be chosen so that the maximum elevation 16 '' not sharp but rounded. In other words, the thickness of the threads or the ribs or webs of the mold elements is between 0.2 mm and 1 mm, preferably between 0.3 mm and 0.8 mm or 0.4 mm and 0.6 mm, in particular around 0 , 5 mm. In the same order of magnitude is also the height of the form elements.
  • The pitch of the helical shaped elements, ie the distance between the thread crests, can vary, for example, by 1 mm to 3 mm. There are no restrictions in this respect.
  • In the embodiment according to 13a to 13c are four at 90 ° distance in the circumferential direction offset and extending in the axial longitudinal web-shaped form elements 15 provided, wherein at least two, three or four such mold elements should be provided, even five or six such offset in the circumferential direction webs or more can be used.
  • An outer conductor sleeve formed in this way 3 is then axially (ie not under a rotary motion) attached to the cable end, wherein the outer conductor sleeve 3 with their flattening 3d then between the outer conductor foil 9 '' and the outer conductor network 9 ' (as basically shown in the preceding embodiments) or as in the embodiment according to 9b between the outer conductor braid 9 ' and the inside of the cable sheath 11 is inserted axially.
  • Also in this case, an easily mountable, also releasable, a good electrical contact to the outer conductor producible outer conductor sleeve 3 used, which has an extremely small maximum outer diameter, and therefore preferably can also be used for plug and clamp connections.

Claims (16)

  1. Outer conductor contact element for coaxial cable ends, with the following features - inside an outer conductor sleeve ( 3 ) is at least one form element ( 15 '; 15a . 15b ), at least in a longitudinal zone (Z) of the outer conductor sleeve ( 3 ), - the at least one shaped element ( 15 ; 15a . 15b ) comprises at least one inside the outer conductor sleeve ( 3 ) from the sleeve inner surface ( 3c ) elevating and around the axial central axis (X) helically extending form element ( 15 ) or more in the axial longitudinal direction and circumferentially offset from each other arranged form elements ( 15 ; 15b ) - the outer conductor sleeve ( 3 ) is with its connection side ( 13a ) at least in a partial length on a coaxial cable end ( 1' ) of a coaxial cable ( 1 ) unscrewed or aufdrehbar or plugged or attachable, - the outer conductor sleeve ( 3 ) is on a coaxial cable end ( 1' ) can be placed or set up so that the at least one or more form elements ( 15 ; 15a . 15b ) below the cable sheath ( 11 ) in the outer conductor ( 9 ) or below the outer conductor braid ( 9 ' ) in the outer conductor foil ( 9 '' ) and / or impresses, - wherein the outer conductor sleeve ( 3 ) the outer conductor ( 9 ) of the coaxial cable ( 1 ) screen-electrically contacted, characterized by the following further features - the height of the form elements ( 15 ; 15a . 15b ), with which it extends over the sleeve inner surface ( 3c ), is between 0.2 mm and 1.0 mm, - the initial range ( 16a ) of the at least one formula element ( 15 ; 15a . 15b ) is with a flattening or ramp ( 16 ' ), - the highest surveys ( 16 ) of the at least one formula element ( 15 ; 15a . 15b ) are rounded, and - the outer conductor sleeve ( 3 ) is on a coaxial cable end ( 1' ) can be placed or set up so that the at least one shaped element ( 15 ; 15a . 15b ) over the outer conductor foil ( 9 '' ) into the underlying dielectric ( 7 ) and / or impresses.
  2. Outer conductor contact element according to claim 1, characterized in that the shaped element ( 15 ) as a helical shaped element ( 15a ) in the manner of at least one thread ( 15'a ) is formed.
  3. Outer conductor contact element according to claim 1 or 2, characterized in that the helical shaped element ( 15a . 15'a ) is formed thread-forming.
  4. Outer conductor contact element according to claim 1, characterized in that at least two form elements ( 15 ; 15b ) preferably at least three or four shaped elements ( 15 ; 15b ) are provided, which are arranged in the longitudinal zone (Z) in the circumferential direction parallel to the axial longitudinal direction (X) extending preferably offset at an equal distance in the circumferential direction to each other.
  5. Outer conductor contact element according to one of claims 1 to 4, characterized in that the end region ( 16b ) of the at least one formula element ( 15 ; 15a . 15b ) with a flattening or ramp ( 16 ' ) is provided.
  6. Outer conductor contact element according to one of claims 1 to 5, characterized in that the outer conductor sleeve on its outer circumference ( 3b ) at least in an axial partial length of the outer conductor sleeve ( 3 ) Grip areas ( 28 ) preferably in the form of a knurling ( 28 ' ) having.
  7. Outer conductor contact element according to one of claims 1 to 6, characterized in that the outer conductor sleeve ( 3 ) at least in a partial length an attack surface ( 30 ), preferably in the form of at least one flattening ( 30 ' ) having.
  8. Outer conductor contact element according to one of claims 1 to 7, characterized in that the height of the form elements ( 15 ; 15a . 15b ) with which they are located above the sleeve inner surface ( 3c ), is between 0.3 mm and 0.8 mm.
  9. Outer conductor contact element according to one of claims 1 to 8, characterized in that the shaped elements ( 15 ; 15a . 15b ) a thickness in the foot area adjacent to the sleeve inner surface ( 3c ) or in its central region which is between 0.2 mm and 1 mm, preferably between 0.3 mm and 0.8 mm.
  10. Outer conductor contact element according to one of claims 1 to 9, characterized in that the outer conductor sleeve ( 3 ) has an axial length (X) and so far on the cable end ( 1' ) aufdrehbaren or turned on or plugged or plugged that a correspondingly exposed inner conductor ( 5 ) over the free connection end ( 13b ) of the outer conductor sleeve ( 3 ) survives.
  11. Outer conductor contact element according to one of claims 1 to 10, characterized in that the outer conductor sleeve has an axial length (X) and as far as the cable end ( 1' ) aufdrehbaren or turned on or plugged or plugged that a correspondingly exposed inner conductor ( 5 ) within the outer conductor sleeve ( 3 ) ends.
  12. Outer conductor contact element according to one of claims 1 to 11, characterized in that the outer conductor sleeve ( 3 ) with a radially inwardly projecting or radially outwardly projecting approach, ring or a corresponding gradation ( 17 ; 17a . 17b ) is trained.
  13. Outer conductor contact element according to claim 12, characterized in that the outer conductor sleeve ( 3 ) with one at its connection end ( 13b ) outwardly projecting radial approach ( 17 ), from which the free terminal end ( 13b ) running away a cylinder ( 17c ), to form an annular groove.
  14. Outer conductor contact element according to claim 13, characterized in that the cylinder ( 17c ) is provided with an internal or an external thread, in or on which a union nut ( 25 ) is on or aufdrehbar.
  15. Outer conductor contact element according to one of claims 1 to 14, characterized in that at the cable end ( 1' ) in front of the outer conductor sleeve ( 3 ) one opposite the outer conductor sleeve ( 3 ) separate attachment cylinder ( 21 ) is provided, the outer conductor insulation ( 11 ) and is preferred here.
  16. Outer conductor contact element according to one of claims 1 to 15, characterized in that the outer conductor sleeve ( 3 ) on a flexible coaxial cable whose outer conductor foil ( 9 '' ) with the dielectric ( 7 ) is glued, mounted.
DE201010035484 2010-08-26 2010-08-26 Outer conductor contact element for coaxial cable ends Expired - Fee Related DE102010035484B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201010035484 DE102010035484B3 (en) 2010-08-26 2010-08-26 Outer conductor contact element for coaxial cable ends

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010035484 DE102010035484B3 (en) 2010-08-26 2010-08-26 Outer conductor contact element for coaxial cable ends
EP11005519.1A EP2424046B1 (en) 2010-08-26 2011-07-06 Contact element for outer conductor of a coaxial cable

Publications (1)

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DE102010035484B3 true DE102010035484B3 (en) 2011-12-01

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159867A1 (en) * 1971-12-02 1973-06-07 Spinner Georg Coaxial connector for coaxial cable with tightly packed dielectric
DE69016891T2 (en) * 1989-09-08 1995-10-05 Viacom International Inc Coaxial cable connector.
US6402550B2 (en) * 2000-04-14 2002-06-11 Maspro Denkoh, Co., Ltd Coaxial cable connector with main body tightly fastened to protective coating
EP1447881A2 (en) * 2003-02-13 2004-08-18 Andrew Corporation Coaxial cable connector system and assembly method
DE10343558A1 (en) * 2003-09-19 2005-04-14 Volkswagen Ag Crimp case e.g. for prevention of water entry into vehicle board network, has connecting arrangement between end of conductor and exhibits lead in part and isolation layer
DE102004031271A1 (en) * 2004-06-28 2006-01-26 Ims Connector Systems Gmbh High frequency connector for coaxial cables comprises a guide having openings tapering in the direction of the connecting side
GB2417618A (en) * 2004-08-31 2006-03-01 Itt Mfg Enterprises Inc Coaxial connector
EP1573862B1 (en) * 2002-12-19 2006-08-02 Kathrein-Werke KG Electrical terminal connection, especially for connecting an outer conductor of a coaxial cable
EP1709711B1 (en) * 2004-09-08 2007-05-02 Kathrein-Werke KG Device for connecting a coaxial cable to a housing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20320376U1 (en) * 2003-05-15 2004-06-24 Harting Automotive Gmbh & Co. Kg Coaxial cable arrangement e.g. for cable pull relief and screening, includes half shells for expanding positioning zone in separation plane region, with wave shapes
US7674132B1 (en) * 2009-04-23 2010-03-09 Ezconn Corporation Electrical connector ensuring effective grounding contact

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159867A1 (en) * 1971-12-02 1973-06-07 Spinner Georg Coaxial connector for coaxial cable with tightly packed dielectric
DE69016891T2 (en) * 1989-09-08 1995-10-05 Viacom International Inc Coaxial cable connector.
US6402550B2 (en) * 2000-04-14 2002-06-11 Maspro Denkoh, Co., Ltd Coaxial cable connector with main body tightly fastened to protective coating
EP1573862B1 (en) * 2002-12-19 2006-08-02 Kathrein-Werke KG Electrical terminal connection, especially for connecting an outer conductor of a coaxial cable
EP1447881A2 (en) * 2003-02-13 2004-08-18 Andrew Corporation Coaxial cable connector system and assembly method
DE10343558A1 (en) * 2003-09-19 2005-04-14 Volkswagen Ag Crimp case e.g. for prevention of water entry into vehicle board network, has connecting arrangement between end of conductor and exhibits lead in part and isolation layer
DE102004031271A1 (en) * 2004-06-28 2006-01-26 Ims Connector Systems Gmbh High frequency connector for coaxial cables comprises a guide having openings tapering in the direction of the connecting side
GB2417618A (en) * 2004-08-31 2006-03-01 Itt Mfg Enterprises Inc Coaxial connector
EP1709711B1 (en) * 2004-09-08 2007-05-02 Kathrein-Werke KG Device for connecting a coaxial cable to a housing

Also Published As

Publication number Publication date
EP2424046A1 (en) 2012-02-29
EP2424046B1 (en) 2016-05-18

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