EP3837741A1 - Ensemble de câble - Google Patents

Ensemble de câble

Info

Publication number
EP3837741A1
EP3837741A1 EP19768772.6A EP19768772A EP3837741A1 EP 3837741 A1 EP3837741 A1 EP 3837741A1 EP 19768772 A EP19768772 A EP 19768772A EP 3837741 A1 EP3837741 A1 EP 3837741A1
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.)
Granted
Application number
EP19768772.6A
Other languages
German (de)
English (en)
Other versions
EP3837741B1 (fr
EP3837741C0 (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

Links

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
    • 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
    • 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
    • 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 arrangement.
  • Cables are connected in a detachable connection via connectors, preferably via connectors, to another cable or to a printed circuit board.
  • the cable can be in a non-detachable connection, i.e. in a fixed connection, directly connected to another cable or circuit board without using a connector.
  • a secure connection with the associated contact in the inner conductor side or the outer conductor side contact of the connector is to be implemented for both the inner conductor and the outer conductor in the case of a detachable connection.
  • the equivalent is to establish a secure connection to the inner conductor and outer conductor of the other high-frequency cable or to the inner conductor-side and outer conductor-side contact on the circuit board.
  • Crimping or pressing has proven itself for the outer conductor connection.
  • the outer conductor is freed from the cable sheath over a certain section at the cable end and thus stripped.
  • 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 therefore with a secure electrical contact between the outer conductor and the outer conductor contact element via such a conductor crimp.
  • the outer conductor contact element has a coaxiality with the inner conductor in view of a radio frequency transmission and contacting equivalent to the outer conductor of the high frequency cable and is thus preferably shaped like a sleeve.
  • a shaped outer conductor contact element 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 region of the support sleeve, thus has a larger inner diameter than the inner diameter of the outer conductor in the high-frequency cable.
  • the crimp sleeve has a radial constriction.
  • This radial narrowing of the crimp sleeve is, as can be seen for example from DE 20 2015 000 751 Ul, realized in the longitudinal direction of the cable following the conductor crimp.
  • the radial narrowing of the crimp sleeve is also referred to as the waist crimp. Due to the radial narrowing, ie the waist crimp, the outer conductor contact to the insulator part of the Hochfre frequency cable and thus in the direction of the inner conductor.
  • a cavity forms between the crimp sleeve and the insulator part of the high-frequency cable in the region between the axial end of the outer conductor of the high-frequency cable and the radial narrowing of the crimp sleeve.
  • This only air-filled cavity which can fluctuate between the individual assembled cables, represents a fault in the high-frequency signal path.
  • the distance of the outer conductor contact to the inner conductor compared to the distance from the outer conductor or the outer conductor contact to the inner conductor in remaining signal path enlarged.
  • This impurity in the impedance curve of the high-frequency signal path adversely affects the transmission behavior of a high-frequency signal, in particular in the two or three-digit gigahertz range.
  • the present invention has for its object to provide a cable assembly comprising a cable and an outer conductor contact element, which is optimized in its high-frequency transmission behavior.
  • the cable arrangement has an electrically conductive filling element in a region of the change in diameter
  • the knowledge / idea on which the present invention is based consists in replacing at least part of the air enclosed in the cavity, which is electrically non-conductive, by an electrically conductive filler element. Optimally, the air enclosed in the cavity is completely replaced by the electrically conductive filling element. In this way, the area of the diameter change of the outer conductor contact element on the outer conductor side, ie the area of the radial narrowing of the outer conductor contact element, in which the cavity filled with air formed according to the prior art, is filled with electrically conductive material up to the insulator part.
  • the outer conductor-side inner diameter is thus in the area of the change in diameter of the outer conductor contact element to the outer conductor-side inner diameter in the remaining areas of the high-frequency cable and the outer conductor contact element.
  • a constant impedance is advantageously achieved over the entire high-frequency signal path within the high-frequency cable and the outer conductor contact element, and the use of the high-frequency cable, in particular in the transition to a connector, for high-frequency signals is expanded to the two or three-digit gigahertz range.
  • the cable is preferably a high-frequency cable for transmitting a high-frequency signal.
  • a high-frequency signal is a signal in the frequency range between 3 MHz and 30 THz.
  • a high-frequency cable used in accordance with the invention in the automotive field 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 enclosing the electrical inner conductor, an outer conductor coaxially enclosing the insulator part and a cable sheath coaxially surrounding the outer conductor.
  • the high-frequency cable can also comprise 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 four-star cable, each with two crossed and shielded pairs of electrical inner conductors.
  • a high-frequency cable with an arbitrary and technically reasonable number of shielded pairs of electrical inner conductors is possible, which are either arranged in parallel or crosswise to one another.
  • the outer conductor of the cable is made in the form of a metallic wire sex or a metallic foil with a view to a low cable weight and easy manufacture.
  • the electrical inner conductor of the cable can be produced as a core, which is surrounded by an insulator part. Instead of an electrical inner conductor and an insulator, an insulated wire is also possible.
  • An outer conductor contact element of a cable arrangement is a contact element that provides the electrical conductor-side electrical contact between the outer conductor of the high-frequency cable and an outer conductor contact of a connector, preferably one Connector, realized.
  • the outer conductor contact element of a cable arrangement is permanently connected to the outer conductor contact of the connector or the 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 the only component.
  • the outer conductor contact element of the cable arrangement above all assumes electrical shielding in the transition region between the high-frequency cable and the connector or plug connector. Equivalently, the outer conductor contact element of the cable arrangement can be electrically connected in a non-detachable connection to the outer conductor of a further cable or to the outer conductor-side contact connection on a printed 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 in the form of a sleeve, in particular with regard to its shielding task.
  • the sleeve-shaped outer conductor contact element preferably has a round cross-sectional profile for realizing coaxiality with a single electrical inner conductor of a cable.
  • other cross-sectional profiles such as, for example, a square, rectangular or elliptical cross-sectional profile are also covered by the invention for the outer conductor contact element, in particular in the case of a cable with a plurality of electrical inner leads.
  • the cross-sectional profile used also depends on the crimping method used.
  • the outer conductor contact element is preferably connected to the outer conductor of the cable via a crimp or press connection. mechanically and electrically connected. In addition to a crimp connection, a solder connection is also conceivable.
  • the change in diameter of the outer conductor contact element can jump, i.e. discontinuous. Due to the manufacturing process, the change in diameter of the outer conductor contact element preferably runs over a certain axial extent and has a constant course, i.e. a sleepy or S-shaped course.
  • the electrically conductive filling element used in the cable arrangement according to the invention is made of a single electrically conductive material or of a composite material with several electrically conductive individual materials.
  • the electrically conductive Grill element can also be made of a composite material with at least one electrically conductive individual material and at least one dielectric individual material. It is crucial here that the electrically conductive filler 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 construction element with inclusions.
  • the filler element can be shaped accordingly, for example as an annular shape, or have any complex and filigree shape. Rather, the decisive factor here is that the originally conductive air-filled cavity in the Jardinan arrangement is at least partially replaced 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 inside the outer conductor contact element.
  • the electrically conductive filling element thus advantageously fills the area 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 at least partially in the axial cable in the longitudinal direction.
  • 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 facing the connector or the connector of the preferably S-shaped profile of the change in diameter of the outer conductor contact, is preferably less than 2 mm, in particular smaller than 0.5 mm.
  • the axial longitudinal extent of the filler element is thus in the non-installed state of the filler element such that the filler element in the installed state within the cable arrangement covers the area between the axial end of the outer conductor and preferably one end facing the connector or plug connector, in particular the S-shaped end Fills the course of the change in diameter of the outer conductor contacts element as optimally as possible.
  • the cable 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 réellelei ter of the insulator part and the insulator part of the outer conductor is 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. In particular, 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 preferably concentrically surrounds the insulator part of the cable.
  • the electrically conductive filling element is in particular in the built-in to stand within the cable arrangement preferably on the insulator part.
  • the electrically conductive filling element is preferably on the outer conductor contact element. The electrically conductive filling element thus advantageously fills the area between the outer conductor contact element and the isolator part at least partially, preferably completely, in a transverse direction to the longitudinal extension of the cable.
  • the change in diameter of the outer conductor contact element preferably represents a radial constriction.
  • the radial constriction of the outer conductor contact element is preferably designed such that the outer conductor contact element lies in the area of the smallest radial constriction on the insulator part.
  • the area in which a filling element can be arranged is closed at the beginning of the area with the narrowest radial narrowing of the outer conductor contact element.
  • the cable preferably has a support sleeve which surrounds 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 somewhat larger than the outer diameter of the outer conductor, so that the support sleeve can be applied to the outside of the outer conductor without problems. During the crimping or pressing process, the support sleeve prevents damage to the electrical inner conductor. In addition, the support sleeve enables improved compression of the outer conductor and outer conductor contact element.
  • the outer conductor contact element which after the crimping or pressing process is electrically connected to the exposed outer conductor in the region of the supporting sleeve, which is turned back via the support sleeve, is adapted in terms of its inner diameter to the outer diameter of the returned outer conductor.
  • the distance between the outer conductor contact element in the region of the support sleeve, i.e. In the non-narrowed diameter range of the outer conductor contact element, the insulator part is preferably less than 1.5 mm, in particular less than 1.0 mm.
  • the transverse extension of the filler element in the non-installed state of the filler element is thus to be designed such that the filler element in the installed state within the cable arrangement fills the area between the outer conductor contact element and the insulator part as optimally as possible.
  • the outer conductor contact element is preferably crimped to the outer conductor of the cable in the area of the support sleeve
  • the outer conductor contact element is preferably implemented as a crimp sleeve, in particular in the area of the support sleeve.
  • the B-crimp type is preferred as the crimp type, which guarantees good mechanical stability of the crimp connection and is easy to manufacture. Alternatively, others can Crimp types are used.
  • the crimp connection is made by a radially external pressure applied to the outer conductor contact element. The pressing force is applied in the area of the support sleeve over the entire circumference of the crimp sleeve, so that the crimp sleeve completely runs around the outer conductor which is folded back around the support sleeve.
  • a further crimp is carried out between the outer conductor contact element and the cable jacket with a view to more stable attachment of the outer conductor contact element to the cable.
  • This further crimp is called a jacket crimp or insulation crimp.
  • the electrically conductive filler element is elastic.
  • the electrically conductive filler is elastic over its entire extent.
  • the filler element can be adapted to differently shaped and production-related unevenly sized cavities due to manufacturing factors.
  • the elastic filling element in the installed state within the cable arrangement is thus dimensioned smaller than in the non-installed state.
  • the elasticity of the filling element also enables the complete filling of the hollow space by the filling element.
  • the electrically conductive and elastic filling element is made from an electrically conductive elastomer.
  • This is preferably an elastomer in which electrically conductive particles, preferably metallic particles, are scattered in a certain density.
  • the size and shape of the individual metallic particles can fluctuate slightly or optimally match each other. Size, arrangement and distribution of the individual metallic particles within the Elastomers are to be selected so that the electrically conductive and elastic filling element has sufficient electrical conductivity over its entire extent for a high-frequency signal in the frequency range mentioned.
  • the electrically conductive and elastic filling element has an electrically conductive wire, i.e. a metallic wire that is braided three-dimensionally.
  • the three-dimensional braiding of the metallic wire can be completely disordered or in a certain order structure.
  • the three-dimensionally braided metallic wire is typically pressed together within the filling element with a view to a specific shape and a specific extension in the non-installed state of the filling element.
  • the three-dimensionally braided metallic wire can also be integrated in an elastomer within the filling element.
  • the insulator part and the outer conductor are each arranged axially to the single electrical inner conductor.
  • a filling element which is inserted into such a cable arrangement, is thus also preferably arranged coaxially to the single electrical inner conductor.
  • such a filling element 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 be realized as the only element.
  • the connector can also be implemented as a screw connector or by means of another connection technique.
  • FIG. 1A is a cross-sectional view of a connector assembly according to the invention with a connector realized as a connector
  • FIG. 1B is a cross-sectional view of a connector assembly according to the invention with a connector realized as a connector
  • 2A shows a plan view of a filling element
  • 2B shows a cross-sectional illustration of a first variant of the filling element and 2C is a cross-sectional view of a second variant of the filling element
  • the connector arrangement 10 according to the invention shown schematically in FIG. 1A, which is implemented as a connector arrangement, comprises a connector 20 and a cable 30 connected to it.
  • the connector 20 is realized as a plug connector, which in turn is designed as a plug.
  • 1A is a coaxial connector assembly made up of a coaxial connector and a coaxial cable.
  • non-coaxial connector arrangements 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 coaxially enclosing the insulator element 32 made of a wire mesh or a conductive foil and a cable sheath 34 surrounding the outer conductor 33 made of an electrically insulating Material such as plastic.
  • the electrical inner conductor 31 of the cable 30 is stripped at its end facing the connector 20, i.e. exposed to the insulator part 32.
  • the insulator part 32 is also exposed at its end facing the connector 20 with respect to the outer conductor 33.
  • the outer conductor 33 is also exposed at its end facing the connector 20 by the cable sheath 34.
  • the connector 20 facing cable end of the cable 30 is taken up in a sleeve-shaped outer conductor contact element 35.
  • the inner diameter of the outer conductor contact element 35 essentially corresponds to the outer diameter of the cable sheath 34, so that the cable end of the cable 30, finally a certain section of the cable sheath 34, can be inserted into an opening of the outer conductor contact element 35 and a subsequent crimping or pressing process between the outer conductor contact element 35 and the cable 30 is possible.
  • 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 outer conductor contact element 35 which is identified by A in FIG. 1A, the outer conductor contact element 35 is fixed to the cable sheath 34 by means of an insulation crimp.
  • the outer diameter of the cable jacket 34 is slightly reduced or squeezed due to the insulation crimp, as can be seen in FIG. 1A, in the region of the insulation crimp.
  • the exposed shielding braid of the outer conductor 33 is turned back by a support sleeve 36.
  • the inner diameter of the support sleeve 36 corresponds in the uncompressed state to the outer diameter of the outer conductor 33 to allow easy insertion of the cable 23 with its outer conductor 33 into the bore of the support sleeve 36.
  • the support sleeve 36 is fixed by crimping on the outer conductor 33 of the cable 23.
  • the outer conductor 33 which can be easily turned back around the fixed support sleeve 36 due to its design as a shielding braid or conductive foil, is designed in terms of its length such that it can be hit back over the entire longitudinal extent of the support sleeve 36. Because the outer conductor lies radially outside the support sleeve 36 along the entire longitudinal extension of the support sleeve 36 on the support sleeve 36, the best possible holding force between the outer conductor 33 and the outer conductor contact sleeve 36 can be realized.
  • the outer diameter of the outer conductor 33 folded back about the support sleeve 36 essentially corresponds to the inner diameter of the outer conductor contact element 35.
  • the support sleeve 36, the both is surrounded radially inside as well as 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 in such a conductor crimp prevents damage to the electrical inner conductor 31.
  • the ra dial located within the support sleeve 36 section of the outer conductor 33 has a slightly reduced or squeezed outer diameter due to the conductor crimp in the region of the support sleeve 36, such as 1A can be seen.
  • the outer conductor contact element 35 In a third section of the outer conductor contact element 35, which is labeled C in FIG. 1A and is located between the axial end of the outer conductor 33 and one end of the outer conductor contact element 35 facing the connector 20, there is a so-called waist crimp. In this waist crimp, the outer conductor contact element 35 has a radial constriction. The outer conductor contact element 35 lies in the region of its narrowest radial constriction on the exposed insulator part 32 of the cable 30.
  • the outer-conductor-side high-frequency signal path is formed by the outer conductor contact 35. Without realizing a radial constriction of the outer conductor contact element 35, the position 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 radio-frequency signal path, in each of which an outer conductor 33 of the cable 30 is still present. This mismatch in impedance disadvantageously causes reflections from higher-frequency signal components and worsens the transmission characteristic of the high-frequency frequency signal path.
  • the inner diameter of the outer conductor contact element 35 in the region of the narrowest radial narrowing is returned to the inner diameter of the outer conductor 33 of the cable 30.
  • the impedance of the high-frequency signal path in the region of the narrowest radial constriction of the outer conductor contact element 35 is again matched to the impedance of the high-frequency signal path within the cable 30 and in the region of the outer conductor contact element 35 up to the axial end of the outer conductor 33.
  • the outer conductor contact element 35 has a section which is marked with D in Fig. 1A, 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 outer conductor side and the inner conductor side signal guide. On the one hand, this is because the
  • Diameter change of the outer conductor contact element 35 is not abrupt, i.e. discontinuous, but takes place in a steady transition over a certain axial longitudinal extent.
  • this section D results from manufacturing tolerances of the individual components, for example the outer conductor 33, the support sleeve 36, the outer conductor contact element 35, the connector 20, etc., and the individual assembly steps, for example the conductor crimp and the waist crimp.
  • 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 lies on the insulator part 33, is typically less than 2 mm, preferably less than 0.5 mm.
  • the outer ßleitermeldelement 35 and the insulator 33 forms a cavity according to the prior art, which is only filled with air.
  • the high-frequency signal path has an unsteadiness in its impedance profile, which deteriorates the transmission characteristic, 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 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 is formed 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 Greenele element 37 fills the area up to the insulator part 33 and thus with a substantially constant outer conductor-side inner diameter 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 the narrowest radial constriction of the outer conductor contact element 35 in section C is realized.
  • the high-frequency signal path thus has essentially no discontinuities in its impedance profile in these sections and enables optimized transmission behavior for high-frequency signals down to the two and three-digit gigahertz range.
  • the electrically conductive and elastic filling element 37 closes the insulator element 33 and thus has a rotationally symmetrical shape, preferably an annular or sleeve-shaped shape, according to FIG. 2A.
  • the electrically conductive and elastic filling element 37 according to FIG. 2B is made of an elastomer with integrated electrically conductive particles, preferably metallic particles.
  • the number, the size, the shape and the arrangement of the individual electrically conductive particles within the filling element 37 made from elastomer are to be selected such that the electrically conductive and elastic filling element has sufficient electrical conductivity for high-frequency signals up to the two or three digits Has gigahertz range.
  • the electrically conductive and elastic filling element 37 according to FIG. 2C is made of an elastomer with an integrated electrically conductive wire, which is braided three-dimensionally.
  • the three-dimensional braiding of the electrically conductive wire can be done with completely disordered or in a certain order structure.
  • the length, the diameter, the type of braiding and the density of the electrically conductive and three-dimensionally braided wire should be selected so that the electrically conductive and elastic filler element has sufficient electrical conductivity for high-frequency signals up to the has two or three-digit gigahertz range.
  • the outer conductor contact element 35 is connected to the outer conductor contact 21, preferably by means of a welded connection, at its end facing the connector 20, at which it has the same diameter as at its end facing the cable 30.
  • This welded connection between the outer conductor contact element 35 and the outer conductor contact 21 of the connector 20 designed as a connector 20 can, as shown in FIG. 1A, be realized radially inside the outer conductor contact 21, but also radially outside the outer conductor contact 21 of the connector 20.
  • a one-piece solution is also conceivable in which the outer conductor contact element 35 and the outer conductor contact 21 of the connector 20 together form a single component.
  • the electrical inner conductor 31 of the cable 30 is at the cable end of the connector 20 realized as a connector via a crimp connection 22 with the inner conductor contact 23 of the connector 20 electrically and mechanically stable verbun the.
  • a crimp connection between the electrical inner conductor 31 of the cable 30 and the inner conductor contact 23 of the connector 20 alternatively a soldered connection is also conceivable.
  • the inner conductor contact 23 is arranged via at least one insulator part 24 coaxially with the outer conductor contact 21 inside the connector 20.
  • the connector 20 designed as a connector is implemented as a plug in the variant shown in FIG. 1A.
  • the inner conductor contact 23 is thus shaped in the form of a pin at the plug-side end of the connector within the socket-shaped outer conductor contact 21.
  • the connector 20 designed as a connector is implemented as a coupler.
  • the inner conductor contact 23 of the connector 23 is designed with a socket.
  • the socket-shaped outer conductor contact 21 of the connector 20 designed as a coupler is designed as a spring cage or spring sleeve in order to realize an elasticity on the plug side, which forms the necessary elasticity for a plugging process with a connector 20 designed as a connector.
  • the remaining elements of the variant of a connector arrangement 10 shown in FIG. 1B correspond to those of the variant of a connector arrangement shown and already described in FIG. 1A. A repeated description of these elements is therefore omitted here and reference is made to the associated description of FIG. 1A.
  • the cable 30 forms a cable arrangement with the outer conductor contact element 35 attached to it.
  • the outer conductor contact element 35 need not necessarily be connected to a connector 20 in a connector arrangement 10.
  • the outer conductor contact element 35 can be firmly connected in a non-detachable connection at its end facing away from the cable 30 with a further cable, preferably a high-frequency cable.
  • there is an indissoluble 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 printed circuit board or in a housing is 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.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

La présente invention concerne un ensemble de câble comprenant un câble, lequel présente un conducteur externe, et un élément de contact de conducteur externe, lequel est connecté électriquement au conducteur externe et présente un changement de diamètre. L'ensemble de câble présente en outre dans la zone de changement de diamètre un élément de remplissage, lequel est électriquement conducteur. L'élément de remplissage est conçu pour réduire une inclusion d'air dans la zone du changement de diamètre.
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 true EP3837741A1 (fr) 2021-06-23
EP3837741B1 EP3837741B1 (fr) 2023-12-27
EP3837741C0 EP3837741C0 (fr) 2023-12-27

Family

ID=67953780

Family Applications (1)

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

Country Status (5)

Country Link
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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US3103548A (en) 1961-11-16 1963-09-10 Crimped coaxial cable termination
US3539709A (en) * 1968-11-04 1970-11-10 Itt Sealing crimp ring for coaxial connector
IL36319A0 (en) * 1970-04-02 1971-05-26 Bunker Ramo Sealed coaxial connector
DE2451853C3 (de) * 1974-10-31 1980-09-11 Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Isolierstutzenanordnung für einen HF-Koaxialleitungsabschnitt
US4755152A (en) * 1986-11-14 1988-07-05 Tele-Communications, Inc. End sealing system for an electrical connection
US5315684A (en) 1991-06-12 1994-05-24 John Mezzalingua Assoc. Inc. Fiber optic cable end connector
US5207596A (en) * 1992-03-19 1993-05-04 Tandy Corporation Solderless coaxial wire connector and method for attachment
JP3946096B2 (ja) 2001-09-11 2007-07-18 株式会社オートネットワーク技術研究所 シールドコネクタ
JP2003297493A (ja) * 2002-04-05 2003-10-17 Auto Network Gijutsu Kenkyusho:Kk 同軸コネクタ
US7044785B2 (en) * 2004-01-16 2006-05-16 Andrew Corporation Connector and coaxial cable with outer conductor cylindrical section axial compression connection
US7131868B2 (en) * 2004-07-16 2006-11-07 John Mezzalingua Associates, Inc. Compression connector for coaxial cable
JP5362270B2 (ja) * 2008-07-03 2013-12-11 矢崎総業株式会社 シールド電線、及び該シールド電線の編組端末処理方法、並びに、編組端末処理装置
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US9160096B2 (en) * 2013-12-06 2015-10-13 Tyco Electronics Corporation High speed connector
DE202015000751U1 (de) * 2015-01-30 2015-03-06 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Steckverbinderanordnung mit Kompensationscrimp

Also Published As

Publication number Publication date
WO2020094275A1 (fr) 2020-05-14
CN112997369B (zh) 2023-12-19
EP3837741B1 (fr) 2023-12-27
US20210367385A1 (en) 2021-11-25
CN112997369A (zh) 2021-06-18
EP3837741C0 (fr) 2023-12-27
DE102018127578A1 (de) 2020-05-07
US11588284B2 (en) 2023-02-21

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