EP2451013A1 - Elektrischer Koaxialstecker und Verfahren zum Verbinden eines Koaxialsteckers mit einem Kabel - Google Patents

Elektrischer Koaxialstecker und Verfahren zum Verbinden eines Koaxialsteckers mit einem Kabel Download PDF

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Publication number
EP2451013A1
EP2451013A1 EP10189870A EP10189870A EP2451013A1 EP 2451013 A1 EP2451013 A1 EP 2451013A1 EP 10189870 A EP10189870 A EP 10189870A EP 10189870 A EP10189870 A EP 10189870A EP 2451013 A1 EP2451013 A1 EP 2451013A1
Authority
EP
European Patent Office
Prior art keywords
post
receptacle guide
cable
coaxial connector
receptacle
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.)
Withdrawn
Application number
EP10189870A
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English (en)
French (fr)
Inventor
Kim Lundgren Eriksen
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.)
PPC Broadband Inc
Original Assignee
PPC Broadband Inc
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 PPC Broadband Inc filed Critical PPC Broadband Inc
Priority to EP10189870A priority Critical patent/EP2451013A1/de
Publication of EP2451013A1 publication Critical patent/EP2451013A1/de
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to a coaxial connector for attachment to a coaxial cable and a method for connecting a coaxial connector to a cable.
  • WO 2006/076440 discloses a coaxial connector with a movable pin.
  • a stop mechanism due to the construction of a stop mechanism, it is difficult - if not impossible - to inspect visually whether an end position has been reached when the pin is connected to the receiving part inside the connector and moved to its end position.
  • the interaction between the construction of the stop mechanism and the way the slidable movement from the start position to its end position takes place makes the suspension of the receiving part quite rigid.
  • the receiving part is not capable of being adjusted when the inner conductor is inserted inside the connector, the risk of bending the inner conductor is quite high.
  • a first aspect of the present invention is at least partly to overcome the disadvantages of the prior art mentioned above and to provide a coaxial connector, where the risk of bending the inner conductor is reduced by providing visible entry, and where it is possible to visually inspect that the cable is pushed fully to the desired position inside the connector. Hence, blind entry is avoided. It is possible to see that the end position has in fact been reached, i.e. that the pin has been pushed to its end position - its position where it is ready for use.
  • the first and second stop means for the stop position are only interacting with each other in the end position, and the first stop means is placed at the receptacle guide end near the connection of the inner conductor, certain flexibility is obtained in such way that a small inaccurate positioning of the inner conductor during insertion will not lead to it being bend. Further, as the stop mechanism of the receptacle guide is placed at this first end, and as no stop means is covering the position between the receptacle guide and the post, it is possible to visually inspect the connector when the pin has reached its end position.
  • the receptacle guide and thereby the contact assembly may be slidably placed in the post.
  • the first receptacle guide end may be in contact with the inner surface of the post in the start position and in the end position and further during the movement from the start position to the end position. In this way, the contact assembly is moved in a secured manner by the dielectric of the cable.
  • the second receptacle guide end in the start position of the contact assembly, may not touch the inner surface of the post.
  • the second receptacle guide end may have a circular circumference and a diameter being smaller than the diameter of the inner surface of the post.
  • the receptacle guide is flexibly related to the surface, e.g. with a play at the second receptacle guide end, so that when the cable is inserted, the risk of bending the inner conductor of the cable is reduced due to said flexibility.
  • the second receptacle guide end in the end position may be placed in a fixed receptacle guide formed with an annular wall, said fixed receptacle guide being placed inside the post.
  • the fixed receptacle guide may be formed with slots in the annular wall. In this way, the signal can be fine-adjusted.
  • the receptacle guide may be formed like a spool, the first end of the spool having a larger diameter than the second end of the spool.
  • the receptacle guide may comprise a hollow cylindrical part, and a substantially circular or cylindrical plate is arranged at each end of the hollow cylindrical part.
  • the first stop means may comprise a flange/collar placed at the first receptacle guide end and may interact in the end position with a protrusion being the second stop means, said second stop means protruding from the inner surface of the post.
  • the first receptacle guide end may further comprise compressible outwardly directed protrusions.
  • the same receptacle guide unit can be used for two different post diameters and thereby two different connectors and two different diameters of the dielectric part of the cable.
  • the post, the pin and the clip may be made substantially of a conductive material
  • the receptacle guide and the fixed receptacle guide may be made substantially of a non-conductive material.
  • the post may be manufactured in one piece. This is possible due to the construction of the receptacle guide according to the invention. Although it is a one-piece post, the post may still be manufactured on a simple manufacturing machine, e.g. a simple automatic bar machine (e.g. manufactured by Davenport) or similar non-CNC machine.
  • a simple manufacturing machine e.g. a simple automatic bar machine (e.g. manufactured by Davenport) or similar non-CNC machine.
  • the build-up of the post facilitates that it is possible to adjust the impedance in at least a section of the post by the fixed receptacle guide and still having the post in one piece.
  • the clip may be configured to grip the inner conductor of the cable and comprises a conical-formed hollow cylinder with a first clip end with a fixed diameter a and an opposing second clip end with a diameter b and flexible walls connecting the ends, said diameter b having in a start position a diameter smaller than a, and in a position where the cable is fully inserted having a diameter b1 that is substantially equal to a.
  • the connector may further comprise a nut having a first nut end and a second nut end placed in such way that the first nut end abuts to the second end of the main body and that a part of the inner surface of the nut is in contact with a part of the outer surface of the post.
  • a compressible sealing ring may be placed between the nut and the post.
  • the connector may further comprise an annular sealing ring having a first sealing ring end and a second sealing ring end, said first sealing ring end having an annular inner engagement portion being in contact with the outer surface of the second nut end.
  • the connector may further comprise an annular grip ring with the inner surface of the annular grip ring covering and being in contact with a part of the outer surface of the nut and the outer surface of the seal ring.
  • the second receptacle guide end in its end position may be placed inside the second post end in such way that an outer surface of the end portion of the second receptacle guide end is substantially aligned with an outer end surface of the second post end.
  • the first stop means of the receptacle guide may also position and guide the receptacle guide inside the post when moving the contact assembly from the start position to its end position.
  • the invention also relates to a method for connecting a coaxial connector to a cable comprising an inner conductor and an outer conductor.
  • Said inner conductor may be mounted inside the receptacle guide where the contact assembly is in its start position, and the contact assembly may be moved to the end position by pushing the cable towards the second body end, and in which position the pin is protruding at least with a part outside the post.
  • Fig. 1 is a side view of a coaxial connector 1 in accordance with a preferred embodiment of the invention. It shows a connector 1 before the connector 1 and a coaxial cable have been attached to each other.
  • the connector 1 comprises a main body 17 having a central bore 2.
  • the main body 17 is cylindrical and has a front end - a first body end 3 - around which a compression ring 18 is arranged.
  • a nut 15 is attached to the main body 17 at the other end - the second body end 4.
  • An annular sealing ring 14 is attached to the nut 15, and a grip ring 16 partly surrounds the outer surface of the nut and the annular sealing ring 14, whereby it is achieved that the annular sealing ring 14 is compressed and secured to the nut.
  • Fig. 2 , Fig. 3 and Fig. 4 show an embodiment of a coaxial connector 1 according to the invention.
  • the coaxial connector 1 comprises a tubular post 5, which is formed in one piece and in a conductive material. Further, the coaxial connector 1 comprises the annular sealing ring 14 and the nut 15, said nut 15 having an internal threaded region 19 at the end where the annular sealing ring 14 is placed. The nut 15 further comprises an outer recessed region in engagement with an inner part of the annular sealing ring 14.
  • a tubular, fixed receptacle guide 9 is placed inside the main body 17 and the post 5 and also abuts to the internal surfaces of the post 5.
  • Said fixed receptacle guide 9 is tubular-shaped and open in both ends in such way that a pin 6 can be put through the guide.
  • the connector 1 comprises a receptacle guide 8, this guide as well as the fixed receptacle guide 9 being made of non-conductive material.
  • Said receptacle guide 8 has substantially the shape of a spool. This guide 8 is movably placed inside the post 5 and is able to slide from a first position to a second position.
  • the first position is different from the second position, wherein in the first position, the pin 6 will at least partly be placed inside the main body 17, and in the second position, the pin 6 will be positioned in the region where the nut is placed, i.e. the region of the second end of the body.
  • the connector comprises a clip 7 (e.g. a receptacle from Mill-max), said clip 7 being fixedly and immovably placed inside the pin 6.
  • the pin 6 is fixedly and immovably positioned inside the receptacle guide 8.
  • the clip 7 comprises flexible walls so that it is possible to insert an inner conductor of a cable into this clip 7, where the compressing and flexible walls will grip around the conductor and thereby achieve that a firm electrical contact is achieved and generally that the inner conductor is retained in the pin 6.
  • a sealing ring 13, e.g. an O-ring, is placed between the nut 15, the post 5 and the body 17, whereby it is achieved that a tight joint is obtained.
  • the connector 1 comprises the compression ring 18, said compression ring 18 also being tubular-formed. All the parts, which are substantially cylindrical, are placed coaxially in relation to each other, said coaxial axis being a longitudinal axis 39 of the bore 2.
  • Fig. 3 shows the coaxial connector 1 in a cross sectional view along the longitudinal axis and where the receptacle guide 8 is in its first position - starting position, i.e. before an inner conductor is pushed into the connector, i.e. into the aperture of the first body end 3 and partly into the post 5 (the inner conductor and the dielectric) through the aperture of the compression ring 18.
  • the construction is as follows:
  • the cylindrical main body 17 surrounds a part of the post 5.
  • the main body 17 comprises the first body end 3 at which end the compression ring 18 is placed in tight relation to the outside of the first body end 3.
  • the second body end 4 is placed in the other end of the main body 17 opposite the first body end 3, said second body end 4 surrounding a part of the post 5.
  • the main body 17 is substantially circular in cross section perpendicular to its longitudinal axis.
  • the receptacle guide 8 is placed inside the main body 17, this being inside the post 5 in the region of the first body end 3.
  • the receptacle guide 8 comprises a first receptacle guide end 20 pointing in the same direction as the first body end of 17.
  • the first receptacle guide end 20 is formed as a substantially circular or cylindrical plate, and the outer surface/edge of the plate - or protrusions from said surface/edge - is in contact with the inner surface 31 of the post 5, said post being placed inside the main body 17.
  • a flange/collar part 22 of the plate being the first stop means is engaging with an annular ledge 25 of the post 5, said ledge 25 protruding inwardly in the post, the ledge being the second stop means 25.
  • the flange/collar part 22 and the ledge 25 are forming the stop means.
  • the first receptacle guide end 20 is pressed into contact with the inner surface of the post in such way that it can withstand the force applied when the inner conductor of the cable is inserted in the receptacle guide 8, i.e. in the clip 7.
  • a second receptacle guide end 21 is placed in the opposite end of the receptacle guide 8, said receptacle guide end 21 also being a substantially circular or cylindrical plate.
  • the receptacle guide 8 comprises a hollow cylindrical part.
  • the first and the second receptacle guide ends are arranged in each end of the hollow cylindrical part.
  • the pin 6 is attached to the second receptacle guide end 21, said pin being made of a conductive, cylindrical-shaped material.
  • the pin 6 is slid along with the receptacle guide 8 and pressed into its second position. Hence, in use the pin 6 engages with another object such as a junction or an appliance.
  • the clip 7 Inside the hollow part of the pin 6, the clip 7 is fixedly placed, said clip 7 having flexible walls so that when an inner conductor of a cable is pressed inside the clip 7, the clip 7 is able to grip around said inner conductor.
  • the clip 7 grips the inner/centre conductor of the cable with a spring action caused by these flexible walls (e.g. a mill-max).
  • the central longitudinal axis of the clip 7, the post 5, the pin 6, the bore 2 and the receptacle guide 8 have coaxial axes, and the pin 6, the receptacle guide 8 and the clip 7 form a contact assembly 30.
  • the entire contact assembly 30 is moved from a start position to an end position when the dielectric of a cable moves the receptacle guide 8 from the first position to the second position.
  • the clip 7 has a first clip end 23 and an opposite second clip end 24, said second clip end 24 being the part that performs the spring action.
  • the clip is configured to grip the inner conductor of the cable and comprises a conical-formed hollow cylinder with the first clip end 23 having a fixed diameter and the opposing second clip end 24 having a diameter b as well as slotted, flexible walls 32 connected at the first clip end.
  • the diameter b Prior to inserting the inner conductor of a cable into the clip 7, the diameter b (second clip end 24, i.e. the exit end of the clip) is smaller than the diameter a (first clip end 23, i.e. the entry end of the clip) and in the situation where the cable is fully inserted, the diameter b1 may be substantially equal to a.
  • the inner surface 31 of the post 5 is annular and has a substantially circular cross-section.
  • the inner surface 31 of the post touches the outer diameter/edge of the first receptacle guide end 20.
  • the first receptacle guide end 20 is in contact with the inner surface 31 of the post 5 in the start position and also in the end position and further during the movement from the start to the end position.
  • this guide end might also have protrusions 11, which are compressible. In this way, it is possible to use a receptacle guide 8 for at least two sizes of posts and thus at least two sizes of cables, which will lower the costs for producing such coaxial connectors.
  • the receptacle guide 8 is centered correctly when sliding forward to its end position.
  • the inner surface of the post 5 will comprise the second stop means 25.
  • the second stop means 25 may be formed like a protruding ledge.
  • the aperture defined by the ledge has a diameter rendering it possible for the second receptacle guide end 21 to pass through, but the first receptacle guide end 20 will be caught by the protruding part of the inner surface of the post 5, whereby the receptacle guide 8 will have a well-defined second position/end position when it has been pushed fully forward.
  • a second post end 29 is arranged for receiving and embracing the fixed receptacle guide 9, said fixed receptacle guide being a tubular, non-conductive part.
  • This fixed receptacle guide 9 is formed with slits 27 in the annular wall, thus creating tongues 26. In this way, it is possible to regulate the impedance between the inner conductor and the outer conductor.
  • the nut 15 is in engagement with the outer surface of the second post end 29.
  • a second nut end 34 opposing a first nut end 33 is surrounded at least partly by a first seal end 35 of the annular seal ring 14. The outer surface of this annular seal ring 14 and a part of the outer surface of the second nut end 34 are surrounded by the cylindrical-formed grip ring 16.
  • a second seal end 36 of the annular seal ring 14 is placed opposite the first seal end 35 of the annular seal ring 14.
  • Fig. 4 shows a sectional view of the coaxial connector 1 according to the invention having a cable inserted, where the contact assembly 30 and thereby the movable pin 6 have reached their end positions.
  • the first receptacle guide end 20 is engaged with the second stop means 25 at the inner surface 31 of the post 5, this stop means 25 being formed like a protruding shelf or a protruding annular ledge.
  • the second receptacle guide end 21 of the receptacle guide 8 is now placed so that an outer surface 37 of the second receptacle guide end 21 is facing towards the annular seal ring 14, i.e. away from the second body end, and the outer surface 37 will be substantially aligned with an outer end surface 38 of the post.
  • the second receptacle guide end 21 is formed like a circular plate and the diameter of this plate is smaller than or equal to the diameter of the bore of the the fixed receptacle guide 9 in which the second receptacle guide end 21 is sliding towards its end position.
  • the inner walls of the fixed receptacle guide 9 may guide the contact assembly 30.
  • a cable 201 is placed and an inner conductor 204 is pressed into the inside of the receptacle guide 8 and caught by the clip 7, where the walls of the clip are pressing around the inner conductor 204 and ensuring that the cable will not disconnect from the connector.
  • the inner conductor 204 is surrounded by a non-conductive material - a dielectric 205. This is surrounded by an outer conductor 202, which is surrounded by a jacket 203 formed in a non-conductive material.
  • a front outer surface of the dielectric 205 is pushing the contact assembly 30 forward when the cable is pressed forward.
  • the outer conductor 202 is placed with its inside surrounding the outside of the post 5 when the cable is in its end position.

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  • Coupling Device And Connection With Printed Circuit (AREA)
EP10189870A 2010-11-03 2010-11-03 Elektrischer Koaxialstecker und Verfahren zum Verbinden eines Koaxialsteckers mit einem Kabel Withdrawn EP2451013A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10189870A EP2451013A1 (de) 2010-11-03 2010-11-03 Elektrischer Koaxialstecker und Verfahren zum Verbinden eines Koaxialsteckers mit einem Kabel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10189870A EP2451013A1 (de) 2010-11-03 2010-11-03 Elektrischer Koaxialstecker und Verfahren zum Verbinden eines Koaxialsteckers mit einem Kabel

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EP2451013A1 true EP2451013A1 (de) 2012-05-09

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EP10189870A Withdrawn EP2451013A1 (de) 2010-11-03 2010-11-03 Elektrischer Koaxialstecker und Verfahren zum Verbinden eines Koaxialsteckers mit einem Kabel

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9124010B2 (en) 2011-11-30 2015-09-01 Ppc Broadband, Inc. Coaxial cable connector for securing cable by axial compression
WO2019103849A1 (en) * 2017-11-22 2019-05-31 Corning Optical Communications Rf Llc Connector for a coaxial cable
CN110299634A (zh) * 2019-06-27 2019-10-01 北京无线电计量测试研究所 一种n型连接器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050272296A1 (en) * 2004-06-04 2005-12-08 Laverick Eric W Electrical connector with non-blind conductor entry
WO2006076440A1 (en) 2005-01-14 2006-07-20 Corning Gilbert Inc. Coaxial cable connector with pop-out pin
US7144272B1 (en) * 2005-11-14 2006-12-05 Corning Gilbert Inc. Coaxial cable connector with threaded outer body
US20090053929A1 (en) * 2007-08-24 2009-02-26 Donald Andrew Burris Coaxial cable connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050272296A1 (en) * 2004-06-04 2005-12-08 Laverick Eric W Electrical connector with non-blind conductor entry
WO2006076440A1 (en) 2005-01-14 2006-07-20 Corning Gilbert Inc. Coaxial cable connector with pop-out pin
US7144272B1 (en) * 2005-11-14 2006-12-05 Corning Gilbert Inc. Coaxial cable connector with threaded outer body
US20090053929A1 (en) * 2007-08-24 2009-02-26 Donald Andrew Burris Coaxial cable connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9124010B2 (en) 2011-11-30 2015-09-01 Ppc Broadband, Inc. Coaxial cable connector for securing cable by axial compression
WO2019103849A1 (en) * 2017-11-22 2019-05-31 Corning Optical Communications Rf Llc Connector for a coaxial cable
CN110299634A (zh) * 2019-06-27 2019-10-01 北京无线电计量测试研究所 一种n型连接器

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