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
  • H01R24/56—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 specially adapted to a specific shape of cables, e.g. corrugated cables, twisted pair cables, cables with two screens or hollow cables
  • H01R24/564—Corrugated cables
• • 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
  • H01R13/46—Bases; Cases
  • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
  • H01R13/5205—Sealing means between cable and housing, e.g. grommet
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49117—Conductor or circuit manufacturing
  • Y10T29/49169—Assembling electrical component directly to terminal or elongated conductor

Definitions

• the present invention relates to the field of connector technology for coaxial cables. It relates to a cable connector for a coaxial cable according to the preamble of claim 1 and a method for mounting such a cable connector.
• a cable plug of the type mentioned above is e.g. from the document EP-A2-0 901 200 known.
• Coaxial lines as they are used today, for example in the field of base stations of mobile networks, have in concentric arrangement an inner conductor and an outer conductor, which lies through an intermediate Dielectric are isolated from each other.
• the outer conductor is usually surrounded by a protective outer sheath made of plastic.
• the outer conductor of a coaxial cable may be formed (at not too high frequencies) as a metallic braid. But it can also be designed as a continuous tube. If increased flexibility of the cable is not required, the tube of the outer conductor may be smooth-walled.
• corrugated tubes or hoses made of metal are usually used as the outer conductor, wherein the shafts can be singularly annular or helical in shape.
• the cable connector must make good electrical contact between the connector housing, which usually forms the outer conductor inside the connector, and the outer conductor of the cable. • The cable plug must have a tensile mechanical connection between
• a known cable connector of the Applicant which is particularly suitable for coaxial cable with ringgewelltem outer conductor is shown in longitudinal section in Fig. 1.
• the cable connector 10 has housing 18, which serves as an outer conductor, and in which by means of an insulator 15, an inner conductor 16 is held concentrically and electrically insulated.
• a union nut 11 is rotatably mounted on the housing 18 by a snap ring 13, with which the cable connector 10 can be screwed after insertion into a corresponding socket with the socket.
• an annular insert 14 is provided, around which a seal 12 is arranged.
• the cable-side fitting which serves for contacting, holding and sealing, comprises a plurality of different parts:
• a contact sleeve 24 is provided, which is distributed through circumferentially spaced, axially extending slots 23 in individual, radially resilient Tongues is divided.
• the contact sleeve 24 has on the plug side an inwardly bead-like thickening edge, with which the contact sleeve 24 rests against a formed in the interior of the housing 18 circumferential projection 22.
• the contact ring 24 is pressed by means of a screwed into the housing 18 first hollow screw 20 by clamping against the projection 22. At the same time an inner seal 17 is compressed to seal between the first hollow screw 20 and the housing 18.
• a further seal 25 is provided, which encloses the outer conductor and by axial Compression by means of a further hollow screw 26 is pressed radially inwardly against the outer conductor.
• a further seal 1 T is provided in the second hollow screw 26, which causes a seal against the outer jacket of the cable.
• the contact sleeve 24 could basically, if it were formed as unslotted sleeve, uniformly over the entire circumference press the crimped edge of the cable outer conductor against the projection 22 and thus not only the make necessary electrical and mechanical contact, but at the same time take over the sealing function for the outer conductor relative to the housing. This could be dispensed with further seals and it could be a much simpler and easier montierbarer cable plug realize.
• the contact sleeve 24 is slotted, however, because it is necessary for the contact sleeve 24 to be pushed on a cable with ringgewelltem outer conductor on the one hand in spite of the corrugation on the outer conductor, and on the other hand with the beaded edge in the first trough behind the crimped conductor edge to dip to press the conductor edge securely against the projection 22.
• Such configurations are known not only from EP-A2-0 901 200, but also from US-A-4,046,451 or EP-A1-0 938 165.
• a preferred embodiment of the invention is characterized in that the fastening means comprise a sealing clamping ring, which is pushed over the end of the outer conductor of the coaxial cable and with an annular first sealing surface a rim at the end of the outer conductor sealing against a arranged in the housing of the cable connector, continuous and annular second sealing surface presses, and that the sealing clamping ring is disposed within the housing and axially guided.
• the fastening means further comprise a screw which is screwed to the housing of the cable connector and exerts an axial force on the sealing-clamping ring when screwed to the housing.
• the screw is designed as a nut or hollow screw, which has a pressure ring inside, with which it dips when screwing into the housing and presses in the axial direction of the sealing clamping ring.
• the sealing-clamping ring can be used without difficulty in all types of corrugated and waveguideroisleitem, it is advantageous that the sealing-clamping ring is formed annularly closed, that the sealing clamping ring towards the sealing side has a conically tapered ring section, that in the housing, a corresponding conical guide surface is arranged, on which the sealing clamping ring is guided with its conical annular portion to the axis, that the first sealing surface is formed continuously, and that the two sealing surfaces are oriented substantially perpendicular to the conical guide surface.
• the deformation of the sealing clamping ring when screwing is facilitated when the sealing-clamping ring is formed on the side facing away from the sealing side cylindrical and adjacent to the cylindrical portion of the conical ring portion has a ring portion with reduced wall thickness.
• the sealing clamping ring may consist of a metallic material, in particular of stainless steel. But it can also consist of a plastic or a composite material.
• the production of the cable connector is simplified if the second sealing surface and possibly the conical guide surface are formed on a metallic Anstellring, which is inserted into the housing of the cable connector and is in electrical contact with the housing.
• An alternative to the closed sealing-clamping ring embodiment of the cable connector according to the invention is characterized in that the sealing clamping ring is formed as provided with a gap open ring or several ring segments consisting. It can be pushed so easily in the slightly open state on the waves of the outer conductor and fixed axially after closing in a trough easily. Because of the opening gap much smaller forces are required for the clamping and sealing to press the end of the outer conductor with a radial component against the corresponding sealing surface.
• the fastening means preferably further comprise a screw which is screwed to the housing of the cable connector and when screwed to the housing exerts an axial force on the sealing-clamping ring, wherein the sealing-clamping ring and the screw means are provided for guiding, which is a tilting of Prevent sealing clamping ring.
• the guide means comprise in particular a V-shaped guide groove in the end face of the screw element and a matching V-shaped edge contour on the sealing clamping ring.
• the sealing clamping ring may be formed substantially cylindrical. He then has on the inside preferably a circumferential annular bead, with which he presses the outer conductor against the second sealing surface.
• the use of the sealing clamping ring is further simplified if it is mirror-symmetrical to a central plane passing through the annular bead.
• the sealing clamping ring can also be conical.
• the clamping of the flanged edge can be effected in particular by means of a screw connection.
• FIG. 1 shows a longitudinal section through a cable connector for cables with corrugated outer conductor according to the prior art.
• FIG. 2 shows a longitudinal section through a cable connector according to a preferred embodiment of the invention.
• Fig. 3 partially cut the adjusting ring of the cable connector of Fig. 2;
• Fig. 4 partially cut the sealing-clamping ring of the cable connector of Fig. 2;
• FIG. 5 shows the cable connector from FIG. 2 with a cable with an annular corrugated outer conductor shortly before screwing
• Fig. 7 in different sub-figures 7 (a) - (c) the sealing Kiemmring of Fig. 6 in section (Fig. 7a), in the front view (Fig. 7b) and in the assembled state on the end of the outer conductor (Fig. 7c); and
• Embodiment of the invention with an open (split) sealing-clamping ring, which is conical. WAYS FOR CARRYING OUT THE INVENTION
• the cable connector 30 comprises a housing 33 which concentrically surrounds an inner conductor 31, which is kept insulated in the housing by means of an insulator 32.
• a union nut 27 is rotatably mounted by means of a snap ring 29.
• a seal 28 is provided for sealing in cooperation with the socket.
• a screw connection is provided, which comprises three elements, namely an adjusting ring 34 inserted in the housing 33 and supported on a shoulder at the level of the insulator 32, e.g.
• the nut 36 can be screwed onto the housing 33 at the cable end, wherein the cable is guided through a central through hole in the nut 36.
• a pressure ring 37 is formed, which dips when screwing the nut 36 on the housing 33 in the central bore of the housing 33 and presses on the cable-side annular surface of the sealing clamping ring 35.
• the adjusting ring 34 and the sealing clamping ring 35 which are individually shown in FIGS. 3 and 4, with their associated sealing surfaces 39 and 42 a clamping mechanism, the crimping edge 52 on the outer conductor 50 of an inserted coaxial cable 47 when screwing the cable connector clamped (see Fig. 5).
• the sealing clamping ring 35 can be pushed without problems over the shafts of a ring-shaped outer conductor 50 (as shown in FIG. 5), but at the same time can grip securely behind the flanged edge 52 when screwing it together, it is made up of a plurality of ring sections 43, 44 and 45 constructed, of which the plug-side ring portion 43 tapers conically in the insertion direction and the other two ring portions 44 and 45 are cylindrical.
• This constriction causes the sealing-clamping ring presses an edge of the outer conductor 50 of sufficient width against the sealing surface 39 on the Anstellring 34 and thus ensures a secure seal.
• the two sealing surfaces 39 and 42 are oriented on the Anstellring 34 and sealing clamping ring 35 substantially perpendicular to the conical guide surface 41. Since both sealing surfaces 39, 42 form closed, uniform rings, the crimping edge 52 clamped between the two sealing surfaces 39, 42 acts like a metallic sealing ring.
• the sealing-clamping ring 35 is exposed as a closed (unslotted) ring when screwing due to the associated constriction considerable mechanical stress. It must therefore be made of a suitable material to withstand these stresses. In particular, the material of the sealing clamping ring 35 should also be chosen so that as little as possible within the cable connector 30 during signal transmission
• Intermodulation occur has proven to be a metallic material such. Aluminum or in particular stainless steel (V2A, material No. 4301). However, it should be non-magnetic so as not to negatively affect the line characteristics in the cable connector. However, other materials such as plastics or composite materials may also be used. Such a suitable one
• Composite material is, for example, a PTFE filled with small metal particles.
• the sealing clamping ring 35 may additionally be coated in order to make it as low-friction as possible.
• the nut 36 When mounting the cable connector 30 according to FIG. 5, the nut 36 is first pushed over the coaxial cable 47. Then, the sealing-clamping ring 35 is pushed over an exposed end of the outer conductor 50 of the coaxial cable 47. Subsequently, the edge is flanged at the end of the outer conductor 50 to a bead 52 to the outside. Then, the cable with the exposed inner conductor 48 is inserted into the slotted female part of the inner conductor 31 in the cable connector 30. Finally, the nut 36 is screwed onto the housing 33 until the flanged edge between the two sealing surfaces 39, 42 sealing, holding and electrical contact is uniformly clamped around the circumference around. An exposed portion of the dielectric 49 of the cable is received by the adjusting ring 34. Towards the rear, the coaxial cable 47 can be additionally sealed by a sealing ring, which is inserted into a corresponding annular groove 38 of the nut 36.
• the sealing clamping of the flanged edge 52 in the cable connector 30 according to FIG. 5 is not limited to coaxial cable with annular corrugated outer conductor, but can also be used in cables with helical corrugated outer conductor or cables with a straight tubular outer conductor, so that over the advantageous simple structure and ease of assembly makes it possible to use a single connector type for many types of cables. Even with cables with braided outer conductor can be achieved with the new cable connector a corresponding clamping, but without sufficient simultaneous sealing can be ensured.
• FIGS. 2-5 The previously described embodiment according to FIGS. 2-5 was based on a closed sealing-clamping ring, which is not only subject to restrictions due to its constant inner diameter when pushed onto the outer conductor of the coaxial cable, but also requires considerable forces during clamping and sealing.
• a sealing clamping ring which is not completely closed, but is open, ie slotted or at least at one point is provided, or even from several independent ring segments is composed.
• a first embodiment of a cable connector with open sealing clamping ring is shown in Fig. 6 and 7, wherein has been dispensed with a hatching of the cut parts.
• the cable connector 60 of FIG. 6 is similarly constructed as the cable connector 30 of FIG. 5.
• a housing 56 coaxially encloses an inner conductor 53, which is held in the housing 56 in isolation.
• a union nut 55 is provided to seal the connector is an annular seal 54.
• the end of a coaxial cable 65 with wavy outer conductor 61 and a surrounding outer jacket 64 is inserted into the cable connector 60.
• the connection of the inner conductor of the coaxial cable 65 to the inner conductor 53 of the cable connector 60 is not shown in Fig. 6.
• an open (slotted or split) sealing-clamping ring 58 is provided, which is shown in Fig. 7 individually.
• the metal sealing-clamping ring 58 is formed substantially cylindrical. It is mirror-symmetrical to a perpendicular to the ring axis center plane 74. In the center plane 74 on the inside of the sealing ring 58, an inwardly projecting, circumferential annular bead 68 is formed, the outer conductor 61 when tightening the screw 59, 63 sealing and clamping against a slightly conical on the housing 56 sealing surface 57 presses. Since the sealing clamping ring 58 is provided with a radial gap 69 (FIG.
• the screw connection comprises a hollow screw 63 (with internal sealing groove 62) and a corresponding threaded arrangement 59.
• the hollow screw 63 has a V-shaped guide groove 73 on the end facing the sealing clamping ring 58, which has a corresponding V-shaped edge contour 66, 67 on the Sealing ring absorbs and thus the sealing-clamping ring 58 leads during screwing and secures against tilting.
• the sealing clamping ring 58 moves axially into a corresponding recess in the housing 56, which is bounded inwardly by the conical sealing surface 57.
• the annular bead 68 which at the same time fixes the sealing clamping ring 58 in a trough of the outer conductor 61 (see also FIG. 7c), presses the outer conductor 61 in a sealing and clamping manner inwards against the sealing surface 57.
• the sealing clamping ring 72 here has a conical shape, in which the ring with its end face the outer conductor 61 sealingly and clamped against a corresponding sealing surface 71 pressed.
• the open sealing clamping ring has the following features and advantages: -
• the sealing clamping ring is split and made possible by the guide in the
• the sealing clamping ring can be reused up to 30 times because it is not plastically deformed.
• the sealing ring is open so far that it can easily be pushed over the shafts of the outer conductor.
• the ring is closed so far that he can no longer slip out of the shaft of the outer conductor. it is the V-shaped guide on the mother prevents tilting of the ring.

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• Coupling Device And Connection With Printed Circuit (AREA)
• Connector Housings Or Holding Contact Members (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35285585

Family Applications (1)

Country Status (8)

Families Citing this family (24)

Citations (1)

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• 2005
  • 2005-11-08 CN CN2005800365724A patent/CN101048918B/zh not_active Expired - Fee Related
  • 2005-11-08 ZA ZA200702647A patent/ZA200702647B/xx unknown
  • 2005-11-08 BR BRPI0517673-5A patent/BRPI0517673A/pt not_active IP Right Cessation
  • 2005-11-08 RU RU2007116345/09A patent/RU2383091C2/ru not_active IP Right Cessation
  • 2005-11-08 EP EP05798677A patent/EP1810374A1/de not_active Withdrawn
  • 2005-11-08 WO PCT/CH2005/000662 patent/WO2006047907A1/de active Application Filing
  • 2005-11-08 US US11/667,286 patent/US7462069B2/en not_active Expired - Fee Related
  • 2005-11-08 AU AU2005301003A patent/AU2005301003B2/en not_active Ceased

Patent Citations (1)

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