EP3837741B1 - Ensemble de câble - Google Patents

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Publication number
EP3837741B1
EP3837741B1 EP19768772.6A EP19768772A EP3837741B1 EP 3837741 B1 EP3837741 B1 EP 3837741B1 EP 19768772 A EP19768772 A EP 19768772A EP 3837741 B1 EP3837741 B1 EP 3837741B1
Authority
EP
European Patent Office
Prior art keywords
outer conductor
cable
contact element
conductor contact
connector
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.)
Active
Application number
EP19768772.6A
Other languages
German (de)
English (en)
Other versions
EP3837741C0 (fr
EP3837741A1 (fr
Inventor
Christian ANFANG
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.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Publication of EP3837741A1 publication Critical patent/EP3837741A1/fr
Application granted granted Critical
Publication of EP3837741B1 publication Critical patent/EP3837741B1/fr
Publication of EP3837741C0 publication Critical patent/EP3837741C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural 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
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H01R13/6593—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable the shield being composed of different pieces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6598—Shield material
    • H01R13/6599—Dielectric material made conductive, e.g. plastic material coated with metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section

Definitions

  • the present invention relates to a cable assembly.
  • Cables are connected in a detachable connection via connectors, preferably via plug connectors, to another cable or to a circuit board.
  • the cable can be connected in a non-detachable connection, i.e. in a fixed connection, directly to another cable or a circuit board without using a connector.
  • a secure connection with the associated inner conductor-side contact or the outer conductor-side contact of the connector must be realized for both the inner conductor and the outer conductor in the case of a detachable connection.
  • a secure connection must be established to the inner conductor and outer conductor of the other high-frequency cable or to the contact on the inner conductor side and outer conductor side on the circuit board.
  • the shielding of the cable is connected to the shielding sleeve of the cable connector via a spring element and the individual inner conductors of the cable are each connected to an inner conductor contact element.
  • the EP 1 291 981 A2 and the US 3,103,548 A each disclose a shielded connector in which the inner cable conductor is crimped with an inner conductor contact element and the shielding of the cable folded back around a support sleeve is crimped with an outer conductor contact element.
  • the US 3,103,548 A discloses a cable arrangement according to the preamble of claim 1.
  • Crimping or pressing has proven successful for the connection on the external conductor side.
  • the outer conductor is freed from the cable jacket over a certain section at the end of the cable and thus stripped of insulation.
  • the outer conductor of the high-frequency cable is thus exposed in this section.
  • the exposed section of the outer conductor is then connected to an electrically conductive outer conductor contact element in a crimping process. In this way, a mechanically stable connection between the outer conductor of the high-frequency cable and the outer conductor contact element and thus a secure electrical contact between the outer conductor and the outer conductor contact element is established via such a conductor crimp.
  • the outer conductor contact element has a coaxiality with the inner conductor equivalent to the outer conductor of the high-frequency cable and is therefore preferably formed in the shape of a sleeve.
  • An external conductor contact element shaped in this way is therefore also referred to as a crimp sleeve.
  • the exposed outer conductor is wrapped around a support sleeve that has a certain wall thickness.
  • the crimp sleeve which is crimped with the outer conductor in the area of the support sleeve, therefore has a larger inner diameter than the inner diameter of the outer conductor in the high-frequency cable.
  • the crimp sleeve has a radial narrowing.
  • This radial narrowing of the crimp sleeve is, for example, from DE 20 2015 000 751 U1 is realized in the longitudinal direction of the cable following the conductor crimp.
  • the radial narrowing of the crimp sleeve is also called waist crimp.
  • a cavity forms between the crimp sleeve and the insulator part of the high-frequency cable in the area between the axial end of the outer conductor of the high-frequency cable and the radial narrowing of the crimp sleeve.
  • This cavity which is only filled with air and can fluctuate between the individual assembled cables, represents a fault point in the high-frequency signal path.
  • the distance between the outer conductor contact and the inner conductor is increased compared to the distance between the outer conductor and the outer conductor contact to the inner conductor in the rest of the signal path .
  • This defect in the impedance curve of the high-frequency signal path adversely affects the transmission behavior of a high-frequency signal especially in the two- or three-digit gigahertz range.
  • the present invention is based on the object of creating a cable arrangement comprising a cable and an external conductor contact element, which is optimized in its high-frequency transmission behavior.
  • the knowledge/idea underlying the present invention is to replace at least part of the air enclosed in the cavity, which is not electrically conductive, with an electrically conductive filling element.
  • the air trapped in the cavity is completely replaced by the electrically conductive filling element.
  • the area of the change in diameter of the outer conductor contact element ie the area of the radial narrowing of the outer conductor contact element, in which the air-filled cavity was formed according to the prior art, is filled with electrically conductive material up to the insulator part.
  • the inner diameter on the outer conductor side is thus adapted in the area of the change in diameter of the outer conductor contact element to the inner diameter on the outer conductor side in the remaining areas of the high-frequency cable and the outer conductor contact element.
  • This advantageously achieves a constant impedance curve over the entire high-frequency signal path within the high-frequency cable and the outer conductor contact element and thus allows the use of the high-frequency cable, in particular in the transition to a connector, for high-frequency signals expanded into the two- or three-digit gigahertz range.
  • the cable is preferably a high-frequency cable for transmitting a high-frequency signal.
  • a radio frequency signal is a signal in the frequency range between 3 MHz and 30 THz.
  • a high-frequency cable used in the automotive sector according to the invention is intended for applications in the single-digit to three-digit GHz range.
  • the high-frequency cable is preferably a coaxial cable with an electrical inner conductor, an insulator part coaxially surrounding the electrical inner conductor, an outer conductor coaxially surrounding the insulator part and a cable sheath coaxially surrounding the outer conductor.
  • the high-frequency cable can also include two electrical inner conductors and a common outer conductor for transmitting a differential high-frequency signal (so-called shielded twisted pair cable).
  • the high-frequency cable can also be implemented as a shielded star-quad cable, each with two crossed and shielded pairs of electrical inner conductors.
  • a high-frequency cable is possible with any technically sensible number of shielded pairs of electrical inner conductors, which are arranged either parallel or crossed over one another.
  • the outer conductor of the cable is made in the form of a metallic wire gender or a metallic foil with a view to low cable weight and easy manufacturability.
  • the electrical inner conductor of the cable can be produced as a core that is surrounded by an insulator part. Instead of an electrical inner conductor and an insulator part, an insulated wire is also possible.
  • An outer conductor contact element of a cable arrangement is a contact element that realizes the outer conductor-side electrical contact between the outer conductor of the high-frequency cable and an outer conductor contact of a connector, preferably a plug connector.
  • the outer conductor contact element of a cable arrangement is permanently connected to the outer conductor contact of the connector or the plug connector, for example via a welded connection.
  • the outer conductor contact element of the cable arrangement and the outer conductor contact of the connector or the plug connector can be implemented as a single component.
  • the external conductor contact element of the cable arrangement primarily provides electrical shielding in the transition area between the high-frequency cable and the connector or the plug connector. Equivalently, the outer conductor contact element of the cable arrangement can be electrically connected in an inseparable connection to the outer conductor of another cable or to the outer conductor-side contact connection on a circuit board or on a housing.
  • the outer conductor contact element encloses the exposed electrical inner conductor and the exposed insulator part of the cable and is therefore preferably shaped like a sleeve, particularly with regard to its shielding task.
  • the sleeve-shaped outer conductor contact element preferably has a round cross-sectional profile in order to achieve coaxiality with a single electrical inner conductor of a cable.
  • other cross-sectional profiles such as a square, rectangular or elliptical cross-sectional profile are also suitable for the outer conductor contact element, particularly in the case of a cable with several electrical inner conductors covered by the invention.
  • the cross-sectional profile used also depends on the crimping process used.
  • the outer conductor contact element is mechanically and electrically connected to the outer conductor of the cable, preferably via a crimp or press connection.
  • a solder connection is also conceivable.
  • the change in diameter of the external conductor contact element can occur suddenly, i.e. discontinuously. Due to the manufacturing process, the change in diameter of the outer conductor contact element preferably extends over a certain axial extent and has a continuous course, i.e. a smooth or S-shaped course.
  • the electrically conductive filling element used in the cable arrangement according to the invention is made from a single electrically conductive material or from a composite material with several electrically conductive individual materials.
  • the electrically conductive filling element can also be made from a composite material with at least one electrically conductive individual material and at least one dielectric individual material. What is crucial here is that the electrically conductive filling element has sufficient electrical conductivity for high-frequency signals in the frequency range mentioned.
  • the electrically conductive filling element can be a self-contained component without inclusions or a component with inclusions.
  • the filling element can be shaped according to known shapes, for example as an annular shape, or any complex and have a delicate shape. What is crucial here is that the electrically conductive filling element replaces the cavity in the cable arrangement, which was originally filled with air, at least partially by an electrically conductive material of the filling element.
  • the electrically conductive filling element is arranged adjacent to an axial end of the outer conductor of the cable within the outer conductor contact element.
  • the electrically conductive filling element thus advantageously at least partially fills the area in the axial longitudinal direction of the cable between the axial end of the outer conductor and the change in diameter of the outer conductor contact element within the outer conductor contact element.
  • the distance between the axial end of the outer conductor and the change in diameter of the outer conductor contact element preferably the distance between the axial end of the outer conductor and an end of the preferably S-shaped course of the change in diameter of the outer conductor contact element facing the connector or the plug connector, is preferably less than 2 mm , especially smaller than 0.5 mm.
  • the axial longitudinal extent of the filling element is therefore to be designed in the uninstalled state of the filling element in such a way that the filling element in the installed state within the cable arrangement covers the area between the axial end of the outer conductor and preferably an end of the particularly S-shaped course facing the connector or the plug connector the change in diameter of the outer conductor contact element fills it as optimally as possible.
  • the cable in addition to the outer conductor, has an electrical inner conductor and an insulator part, which is arranged between the outer conductor and the electrical inner conductor. At the end of the cable, at which the cable is connected to a connector or plug connector, the electrical inner conductor of the insulator part and the insulator part of the outer conductor are each exposed.
  • the filling element Since the filling element is arranged adjacent to the axial end of the outer conductor, the filling element is located in the area of the exposed insulator part. According to the invention, the filling element is arranged in a region between the axial end of the outer conductor and the change in diameter of the outer conductor contact element between the outer conductor contact element and the insulator.
  • the filling element concentrically encloses the insulator part of the cable.
  • the electrically conductive filling element When installed, the electrically conductive filling element preferably lies against the insulator part within the cable arrangement.
  • the electrically conductive filling element preferably rests on the external conductor contact element.
  • the electrically conductive filling element thus advantageously also at least partially, preferably completely, fills the area between the outer conductor contact element and the insulator part in a transverse direction to the longitudinal extent of the cable.
  • the change in diameter of the outer conductor contact element preferably represents a radial narrowing.
  • the radial narrowing of the outer conductor contact element is preferably designed such that the outer conductor contact element rests on the insulator part in the area of the smallest radial narrowing.
  • the area in which a filling element can be arranged is therefore closed at the beginning of the area with the narrowest radial constriction of the outer conductor contact element.
  • the cable has a support sleeve that encloses the electrical inner conductor.
  • the exposed outer conductor of the cable is folded back around the support sleeve.
  • the inner diameter of the support sleeve is preferably designed to be slightly larger than the outer diameter of the outer conductor, so that the support sleeve can be easily applied to the outside of the outer conductor.
  • the support sleeve prevents damage to the electrical inner conductor.
  • the support sleeve enables improved compression of the outer conductor and outer conductor contact element.
  • Filling element should therefore be designed in such a way that the filling element, when installed within the cable arrangement, fills the area between the outer conductor contact element and the insulator part as optimally as possible.
  • the electrically conductive and elastic filling element has an electrically conductive wire, ie a metallic wire, which is three-dimensionally braided.
  • the three-dimensional braiding of the metallic wire can be completely disordered or in a specific order structure.
  • the three-dimensionally braided metallic wire is compressed within the filling element with a view to a certain shape and a certain extent when the filling element is not installed.
  • the three-dimensionally braided metallic wire can also be integrated into an elastomer within the filling element.
  • the insulator part and the outer conductor are each arranged coaxially to the single electrical inner conductor.
  • a filling element that is inserted into such a cable arrangement is therefore also preferably arranged coaxially to the single electrical inner conductor.
  • Such a filling element thus has a rotationally symmetrical shape, preferably an annular or a hollow cylindrical shape.
  • the invention also includes a connector arrangement with a connector, preferably a plug connector, and a cable arrangement.
  • the outer conductor contact element of the cable arrangement is connected to the outer conductor contact of the connector or the plug connector.
  • the outer conductor contact element of the cable arrangement and the outer conductor contact of the connector or the plug connector can be implemented as a single element.
  • the connector can also be implemented as a screw connector or using another connection technology.
  • FIG. 1A Schematically illustrated connector arrangement 10 according to the invention, which is implemented as a plug connector arrangement, comprises a connector 20 and a cable 30 connected thereto.
  • the connector 20 is implemented as a plug connector, which in turn is designed as a plug.
  • the connector arrangement shown is a coaxial connector arrangement consisting of a coaxial connector and a coaxial cable.
  • non-coaxial connector arrangements consisting of a non-coaxial connector or plug connector and an associated non-coaxial cable are also covered by the invention, as already mentioned above.
  • the cable 30, designed as a coaxial cable has an electrical inner conductor 31, an insulator element 32 coaxially surrounding the electrical inner conductor 31, an outer conductor 33 made of a wire mesh or a conductive film coaxially surrounding the insulator element 32 and a cable sheath 34 made of an electrically insulating material surrounding the outer conductor 33 such as plastic.
  • Fig. 1A the electrical inner conductor 31 of the cable 30 is stripped at its end facing the connector 20, ie opposite the insulator part 32 exposed.
  • the insulator part 32 is also exposed to the outer conductor 33 at its end facing the connector 20.
  • the outer conductor 33 is also exposed by the cable jacket 34 at its end facing the connector 20.
  • the crimping or pressing process takes place between the cable 30 and the outer conductor contact element 35 in three different sections of the outer conductor contact element 35:
  • a first section of the external conductor contact element 35 which is in Fig. 1A is marked with A
  • the outer conductor contact element 35 is fixed to the cable jacket 34 by means of an insulation crimp.
  • the outer diameter of the cable jacket 34 is as follows due to the insulation crimping Fig. 1A can be seen, slightly reduced or squeezed in the area of the insulation crimp.
  • a second section of the external conductor contact element 35 which is in Fig. 1A marked B, is the exposed shielding braid of the outer conductor 33 around a support sleeve 36 repulsed.
  • the inner diameter of the support sleeve 36 essentially corresponds to the outer diameter of the outer conductor 33 in order to enable the cable 23 with its outer conductor 33 to be easily inserted into the bore of the support sleeve 36.
  • the support sleeve 36 is fixed to the outer conductor 33 of the cable 23 by crimping.
  • the length of the outer conductor 33 which can be easily folded back around the fixed support sleeve 36 due to its design as a shielding braid or conductive film, is designed in such a way that it can be folded back over the entire longitudinal extent of the support sleeve 36. Because the outer conductor rests on the support sleeve 36 radially outside the support sleeve 36 along the entire longitudinal extent of the support sleeve 36, the best possible holding force between the outer conductor 33 and the outer conductor contact sleeve 36 can be achieved.
  • the outer diameter of the outer conductor 33 folded back around the support sleeve 36 essentially corresponds to the inner diameter of the outer conductor contact element 35.
  • the support sleeve 36 which is surrounded both radially inside and radially outside by the outer conductor 33, enables a more stable fixation of the outer conductor contact element 35 on the outer conductor 33 of the cable 30 during the crimping or pressing process.
  • the support sleeve 36 prevents damage to the electrical inner conductor 31 with such a conductor crimp.
  • the section of the outer conductor 33 located radially inside the support sleeve 36 has a slightly reduced or squeezed shape in the area of the support sleeve 36 due to the conductor crimp Outer diameter on how out Fig. 1A can be recognized.
  • a third section of the external conductor contact element 35 which is in Fig. 1A is marked with C and is located between the axial end of the outer conductor 33 and an end of the outer conductor contact element 35 facing the connector 20, there is a so-called waist crimp. With this waist crimp, the outer conductor contact element 35 has a radial narrowing. The outer conductor contact element 35 rests on the exposed insulator part 32 of the cable 30 in the area of its narrowest radial constriction.
  • the outer conductor-side high-frequency signal path is formed by the outer conductor contact element 35.
  • the distance between the outer conductor side and the inner conductor side signal routing and thus the impedance in this section would change compared to the sections of the high-frequency signal path in which an outer conductor 33 of the cable 30 is still present. This impedance mismatch adversely causes reflections of higher-frequency signal components and worsens the transmission characteristics of the high-frequency signal path.
  • the inner diameter of the outer conductor contact element 35 is returned to the inner diameter of the outer conductor 33 of the cable 30 in the area of the narrowest radial constriction.
  • the impedance of the high-frequency signal path is back to the impedance in the area of the narrowest radial constriction of the outer conductor contact element 35 of the high-frequency signal path within the cable 30 and in the area of the outer conductor contact element 35 up to the axial end of the outer conductor 33.
  • the external conductor contact element 35 has a section which is in Fig. 1A is marked with D, in which, on the one hand, there is no outer conductor 33 of the cable 30 and, on the other hand, the distance between the outer conductor contact element 35 and the electrical inner conductor 33 does not correspond to the adjusted distance between the signal routing on the outer conductor side and the inner conductor side.
  • this is due to the fact that the change in diameter of the outer conductor contact element 35 does not occur abruptly, ie discontinuously, but rather in a continuous transition over a certain axial longitudinal extent.
  • the distance between the axial end of the outer conductor 33 and the beginning of the narrowest radial constriction in which the outer conductor contact element 35 rests on the insulator part 33 is typically less than 2 mm, preferably less than 0.5 mm.
  • a cavity is formed which is filled only with air.
  • the high-frequency signal path has a discontinuity in its impedance curve, which affects the transmission characteristics in particular for higher-frequency signal components in the two or three-digit gigahertz range.
  • an electrically conductive and elastic filling element 37 is arranged in this area, which is located adjacent to the axial end of the outer conductor 33. Due to the elasticity of the filling element 37, it is possible for the cavity that forms between the axial end of the outer conductor 33, the outer conductor contact element 35 and the insulator part 33 to be filled as far as possible with the filling element 37.
  • the electrically conductive filling element 37 to fill the area up to the insulator part 33 and thus a substantially constant inner diameter on the outer conductor side from the outer conductor 33 of the cable 30 in section B via the electrically conductive and elastic filling element 37 in section D to for the narrowest radial narrowing of the outer conductor contact element 35 in section C.
  • the high-frequency signal path therefore has essentially no discontinuities in its impedance curve in these sections and enables optimized transmission behavior for high-frequency signals up to the two- and three-digit gigahertz range.
  • the electrically conductive and elastic filling element 37 encloses the insulator element 33 and thus has a rotationally symmetrical shape, preferably an annular or sleeve-shaped shape Fig. 2A on.
  • the electrically conductive and elastic filling element 37 is according to Fig. 2B made from an elastomer with integrated electrically conductive particles, preferably metallic particles.
  • the number, the size, The shape and arrangement of the individual electrically conductive particles within the filling element 37 made of elastomer must be chosen so that the electrically conductive and elastic filling element has sufficient electrical conductivity for high-frequency signals up to the two- or three-digit gigahertz range.
  • the electrically conductive and elastic filling element 37 is according to Fig. 2C Made from an elastomer with an integrated electrically conductive wire that is three-dimensionally braided.
  • the three-dimensional braiding of the electrically conductive wire can be completely disordered or in a specific order structure.
  • the length, the diameter, the type of braiding and the density of the electrically conductive and three-dimensionally braided wire must be selected so that the electrically conductive and elastic filling element has sufficient electrical conductivity for high-frequency signals up to the two - or three-digit gigahertz range.
  • the external conductor contact element 35 is according to Fig. 1A at its end facing the connector 20, at which it has the same diameter as at its end facing the cable 30, is connected to the external conductor contact 21, preferably by means of a welded connection.
  • This welded connection between the external conductor contact element 35 and the external conductor contact 21 of the connector 20 designed as a plug connector can, as in Fig. 1A is shown, realized radially within the outer conductor contact 21, but also radially outside the outer conductor contact 21 of the connector 20.
  • the electrical inner conductor 31 of the cable 30 is connected to the inner conductor contact 23 of the connector 20 in an electrically and mechanically stable manner at the cable-side end of the connector 20, which is implemented as a plug connector, via a crimp connection 22.
  • a soldered connection is alternatively also conceivable.
  • the inner conductor contact 23 is arranged coaxially to the outer conductor contact 21 within the connector 20 via at least one insulator part 24.
  • the connector 20, designed as a plug connector, is shown in FIG Fig. 1A
  • the variant shown is implemented as a plug.
  • the inner conductor contact 23 is thus shaped like a pin at the plug-side end of the plug connector within the socket-shaped outer conductor contact 21.
  • the connector 20 which is designed as a plug connector, is implemented as a coupler.
  • the inner conductor contact 23 of the connector 23 is thus designed to be socket-shaped.
  • the socket-shaped external conductor contact 21 of the connector 20 designed as a coupler is designed as a spring basket or spring sleeve in order to realize an elasticity on the plug-in side, which forms the necessary elasticity for a plug-in process with a connector 20 designed as a plug.
  • the cable 30 forms a cable arrangement with the external conductor contact element 35 attached to it.
  • the external conductor contact element 35 does not necessarily have to be connected to a connector 20 in a connector arrangement 10.
  • the external conductor contact element 35 can be firmly connected in an inseparable connection to another cable, preferably a high-frequency cable, at its end facing away from the cable 30.
  • an inseparable connection i.e. preferably a soldered connection, of the outer conductor contact element 35 with an outer conductor-side contact connection or ground connection on a circuit board or in a housing is also possible.
  • the electrical inner conductor 31 of the cable 30 is preferably connected via a solder connection to an inner conductor-side contact connection on a circuit board or in a housing.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (8)

  1. Disposition de câble avec
    un câble (30), qui comprend un conducteur externe (33), un conducteur électrique interne (31), une partie isolante (32) et une gaine de protection (36),
    un élément de contact de conducteur externe (35) et
    un élément de remplissage (37),
    dans lequel la partie isolante (32) est disposée entre le conducteur externe (33) et le conducteur électrique interne (31),
    dans lequel la gaine de protection (36) est fixée au conducteur externe (33) et le conducteur externe (33) est rabattu autour de la gaine de protection (36),
    dans lequel l'élément de contact de conducteur externe (35) est relié électriquement avec le conducteur externe (33) rabattu et présente une variation de diamètre,
    dans lequel l'élément de remplissage (37) entoure la partie isolante (32) de manière concentrique,
    dans lequel l'élément de remplissage (37) est disposé dans une zone entre une extrémité axiale du conducteur externe (33) rabattu et la variation de diamètre de l'élément de contact de conducteur externe (35), à l'intérieur de l'élément de contact de conducteur externe (35),
    dans lequel l'élément de remplissage (37) est un conducteur électrique,
    caractérisée en ce que l'élément de remplissage (37) est élastique et est conçu pour réduire une inclusion d'air dans la zone entre l'extrémité axiale du conducteur externe (33) rabattu et la variation de diamètre de l'élément de contact de conducteur externe (35), à l'intérieur de l'élément de contact de conducteur externe (35).
  2. Disposition de câble selon la revendication 1,
    caractérisée en ce que
    l'élément de remplissage (37) est disposé à l'intérieur de l'élément de contact de conducteur externe (35), près d'une extrémité axiale du conducteur externe (33).
  3. Disposition de câble selon la revendication 1 ou 2,
    caractérisée en ce que
    la variation de diamètre de l'élément de contact de conducteur externe (35) est un rétrécissement radial, dans lequel une zone du rétrécissement radial s'appuie contre la partie isolante (32).
  4. Disposition de câble selon l'une des revendications 1 à 3,
    caractérisée en ce que
    l'élément de contact de conducteur externe (35) est serti avec le conducteur externe (33) dans une zone de la gaine de protection (36) et l'élément de contact de conducteur externe (35) est conçu plus particulièrement comme un manchon de sertissage.
  5. Disposition de câble selon l'une des revendications 1 à 4,
    caractérisée en ce que
    l'élément de remplissage (37) est constitué d'un élastomère électriquement conducteur, de préférence d'un élastomère avec des particules électriquement conductrices intégrées.
  6. Disposition de câble selon l'une des revendications 1 à 4,
    caractérisée en ce que
    l'élément de remplissage (37) présente un treillis métallique électriquement conducteur, qui est tressé de préférence de manière tridimensionnelle.
  7. Disposition de câble selon l'une des revendications 1 à 6,
    caractérisée en ce que
    l'élément de remplissage (37) présente une forme à symétrie de rotation, de préférence une forme annulaire ou une forme de manchon.
  8. Disposition de connecteur (10) avec
    un connecteur (20), plus particulièrement un connecteur enfichable, qui comprend un contact de conducteur externe (21) et avec une disposition de câble selon l'une des revendications précédentes, dans lequel l'élément de contact de conducteur externe (35) est relié avec le contact de conducteur externe (21).
EP19768772.6A 2018-11-06 2019-09-11 Ensemble de câble Active EP3837741B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018127578.1A DE102018127578A1 (de) 2018-11-06 2018-11-06 Kabelanordnung
PCT/EP2019/074150 WO2020094275A1 (fr) 2018-11-06 2019-09-11 Ensemble de câble

Publications (3)

Publication Number Publication Date
EP3837741A1 EP3837741A1 (fr) 2021-06-23
EP3837741B1 true EP3837741B1 (fr) 2023-12-27
EP3837741C0 EP3837741C0 (fr) 2023-12-27

Family

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Application Number Title Priority Date Filing Date
EP19768772.6A Active EP3837741B1 (fr) 2018-11-06 2019-09-11 Ensemble de câble

Country Status (5)

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US (1) US11588284B2 (fr)
EP (1) EP3837741B1 (fr)
CN (1) CN112997369B (fr)
DE (1) DE102018127578A1 (fr)
WO (1) WO2020094275A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114361891B (zh) * 2022-01-29 2023-06-16 西安雷航电子信息技术有限公司 一种用于射频传输或电信号传输的电连接器及电路结构
CN116526222B (zh) * 2023-06-29 2023-09-29 杭州海康威视数字技术股份有限公司 线缆组件

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IL36319A0 (en) * 1970-04-02 1971-05-26 Bunker Ramo Sealed coaxial connector
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Also Published As

Publication number Publication date
WO2020094275A1 (fr) 2020-05-14
CN112997369B (zh) 2023-12-19
US20210367385A1 (en) 2021-11-25
CN112997369A (zh) 2021-06-18
EP3837741C0 (fr) 2023-12-27
EP3837741A1 (fr) 2021-06-23
DE102018127578A1 (de) 2020-05-07
US11588284B2 (en) 2023-02-21

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