EP1642362A1 - Coaxial connector - Google Patents

Coaxial connector

Info

Publication number
EP1642362A1
EP1642362A1 EP03735339A EP03735339A EP1642362A1 EP 1642362 A1 EP1642362 A1 EP 1642362A1 EP 03735339 A EP03735339 A EP 03735339A EP 03735339 A EP03735339 A EP 03735339A EP 1642362 A1 EP1642362 A1 EP 1642362A1
Authority
EP
European Patent Office
Prior art keywords
cable
back nut
end portion
outer conductor
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
EP03735339A
Other languages
German (de)
French (fr)
Other versions
EP1642362B1 (en
Inventor
Jimmy Ciesla Henningsen
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.)
Corning Cabelcon AS
Original Assignee
Corning Cabelcon AS
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 Corning Cabelcon AS filed Critical Corning Cabelcon AS
Publication of EP1642362A1 publication Critical patent/EP1642362A1/en
Application granted granted Critical
Publication of EP1642362B1 publication Critical patent/EP1642362B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01R9/0521—Connection to outer conductor by action of a nut
    • 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
    • H01R9/0524—Connection to outer conductor by action of a clamping member, e.g. screw fastening means

Definitions

  • the present invention relates generally to a connector for coaxial cables or more particularly to a simplified coaxial connector and a method of attachment of a cable to the simplified coaxial connector.
  • the outer conductor must also be thoroughly cleared of all glue and adhesive material that may hinder or jam the parts encapsulated in the back nut during mounting and tightening or result in a poor electrical connection. This can prove to be quite difficult in practice and is certainly very time-consuming.
  • US patent No. 6,133,532 shows a connector of the type discussed where the back nut encapsulates three different moving parts (a locking device, guide surface and inner sleeve) as well as three separate O-ring seals.
  • the object of the present invention is to provide a simple, yet effective means of securely connecting a coaxial cable with either a corrugated or non-corrugated outer conductor to a coaxial connector.
  • the connector according to the invention may consist of only four parts, which is considerably less than current connectors have.
  • the back nut is made of one single tubular piece and does not enclose any further parts. This means that during the connection of a coaxial cable to the connector there is only one part to be adjusted in relation to the front end making the process very simple, easy to carry out in the field and difficult to mount and assemble incorrectly.
  • the procedure to mount the connector to the cable is also very simple and consists of the following steps: • Insulating jacket is removed from the cable end to be connected.
  • Adhesive material is cleared from the portion of the cable's outer conductor which is to come into contact with the front end's outer terminal. • The cable's outer conductor is formed to the back nut's inside circumference.
  • the outer conductor's stripped end portion is placed in the gap formed between the outer terminal's contact face and the back nut's abutting face.
  • the back nut is longitudinally displaced in relation to the front end until the outer conductor's end portion is clamped between the corresponding faces of the outer terminal and back nut.
  • a further object of the invention is to provide an economic and effective connector for coaxial cables. This is achieved through the connector's simple design and its comprising a limited number of parts, resulting in less to be manufactured and less time to assemble.
  • Figure 1 is a longitudinal cross-section of the connector in its open position
  • Figure 2 is a longitudinal cross-section of the connector in its near-closed position with the cable attached
  • Figure 3 is an enlargement of a longitudinal cross-section of the outer conductor and contact faces.
  • Figure 1 illustrates an embodiment of a connector according to the invention in its open state, where the outer terminal (4), insulator (2) and inner terminal (1) are all rigidly attached to one another and the back nut (3) is rotatable and longitudinally displaceable along the outer terminal (4).
  • FIG. 2 illustrates an embodiment of a connector according to the invention in its near-closed state where, the cable (5) is mounted and in contact with the inner terminal (1 ) and while the cable's stripped and cleaned outer conductor (7) is positioned in the gap between the outer terminal (4) and the back nut (3).
  • the outer conductor (7) has been flared using a special tool which stops the back nut (3) slipping off the end of the cable (5) and enables the outer conductor (7) to be clamped between the front end (4) and the back nut (3). It should however be noted that this flaring might not be necessary as long as the outer conductor (7) has a secure conductive contact with the outer terminal (4) and/or back nut (3).
  • the presence of an O-ring (6) should also be noted. This O-ring ensures that moisture does not enter via the connection between the outer terminal (4) and the back nut (3) and interferes with the contacts.
  • Figure 3 is an enlarged view of this connection between the outer terminal (4) and back nut (3) where the O-ring is not shown.
  • the end portion (L) of the outer conductor (7) is stripped of its jacket and a sufficient amount of dielectric material and has been flared to ensure it is inserted into the gap created by the corresponding contact faces (8, 9).
  • the figure shows how the end portion (L) of the outer conductor is clamped between the back nut (3) and the outer terminal (4) with contact being along the corresponding faces (8, 9) ensuring a good mechanical connection and also conductive connection with the outer terminal's contact face (8).
  • the preferred, simplified process of cable mounting is carried out as follows:
  • the cable (5) end to be connected is stripped of its jacket and dielectric material to enable a conductive connection.
  • the cable (5) is inserted through the back nut (3) and the cable's outer conductor is flared and shaped along the back nut's (3) inner circumference with the aid of a specialised tool, while the extrusion is simultaneously cleaned of glue and the like.
  • the outer terminal (4) is then attached to the back nut (3) and screwed until there is a mechanical stop.
  • the connector and cable are now attached.
  • neither the jacket nor dielectric material is removed from the cable end to be connected, as long as there is a sufficient contact between the outer conductor (7) and the outer terminal (4).
  • the end portion of the cable (L) is inserted through the back nut (3).
  • a tool may then be used which prizes the end portion (L) of the outer conductor (7) away from the dielectric and flares it as mentioned before.
  • the flared end portion (L) to come into contact with the outer terminal's contact face (8) can be cleaned to ensure a stable connection and the flaring, when clamped between the corresponding faces (8, 9) ensures and secures mechanical connection.
  • Yet another embodiment is a combination of the two previous embodiments.
  • a sufficient amount of dielectric material is removed from the end portion (L) of the cable and the contact surface of the outer conductor (7) is cleaned and flared as before with the back nut (3) having been slid onto the end portion (L).
  • the back nut (3) is then longitudinally displaced so that the flared outer conductor (7) and adjoined insulating jacket are clamped securely between the outer terminal's contact face (8) and the abutting back nut face (9).

Abstract

A coaxial connector device including an outer terminal (4), inner terminal (1), insulator (2) and movable back nut (3) with inserted cable (5) having an outer conductor (7) clamped between said outer terminal (1) and back nut (3) to give a secure contact and mechanical connection.

Description

COAXIAL CONNECTOR
TECHNICAL FIELD
The present invention relates generally to a connector for coaxial cables or more particularly to a simplified coaxial connector and a method of attachment of a cable to the simplified coaxial connector.
BACKGROUND OF THE INVENTION
Current connectors on the market consist of a number of moving parts, typically a standard front end which consists of an inner terminal, an outer terminal, insulator and a moveable back nut which encapsulates a number of seals, retaining rings and the like. This large number of moving parts in the back nut portion makes the fitting of a coaxial cable complicated and usually requires several specialised tools. It can also increase the risk of the connector malfunctioning or problems may arise during mounting due to the large number of parts, which may be defective, missing or incorrectly attached.
The outer conductor must also be thoroughly cleared of all glue and adhesive material that may hinder or jam the parts encapsulated in the back nut during mounting and tightening or result in a poor electrical connection. This can prove to be quite difficult in practice and is certainly very time-consuming.
The manufacture and assembly of current connectors is also expensive in terms of time taken and material costs due to the number of parts enclosed in the back nut, which have to be manufactured and then assembled.
US patent No. 6,133,532 shows a connector of the type discussed where the back nut encapsulates three different moving parts (a locking device, guide surface and inner sleeve) as well as three separate O-ring seals.
SUMMARY OF THE INVENTION The object of the present invention is to provide a simple, yet effective means of securely connecting a coaxial cable with either a corrugated or non-corrugated outer conductor to a coaxial connector.
The connector according to the invention may consist of only four parts, which is considerably less than current connectors have. The back nut is made of one single tubular piece and does not enclose any further parts. This means that during the connection of a coaxial cable to the connector there is only one part to be adjusted in relation to the front end making the process very simple, easy to carry out in the field and difficult to mount and assemble incorrectly.
This reduction in the number of parts also means that only an end portion of the outer conductor which comes into contact with the connector has to be stripped of glue and adhesive material. This is a much smaller area than required for previous conductors.
The procedure to mount the connector to the cable is also very simple and consists of the following steps: • Insulating jacket is removed from the cable end to be connected.
• Dielectric material is removed from cable end to be connected
• The cable is inserted through the back nut.
• Adhesive material is cleared from the portion of the cable's outer conductor which is to come into contact with the front end's outer terminal. • The cable's outer conductor is formed to the back nut's inside circumference.
• The outer conductor's stripped end portion is placed in the gap formed between the outer terminal's contact face and the back nut's abutting face.
• The back nut is longitudinally displaced in relation to the front end until the outer conductor's end portion is clamped between the corresponding faces of the outer terminal and back nut.
A further object of the invention is to provide an economic and effective connector for coaxial cables. This is achieved through the connector's simple design and its comprising a limited number of parts, resulting in less to be manufactured and less time to assemble. BRIEF DESCRIPTION OF THE DRAWING
Figure 1 is a longitudinal cross-section of the connector in its open position,
Figure 2 is a longitudinal cross-section of the connector in its near-closed position with the cable attached, and
Figure 3 is an enlargement of a longitudinal cross-section of the outer conductor and contact faces.
DETAILED DESCRIPTION OF THE INVENTION
Figure 1 illustrates an embodiment of a connector according to the invention in its open state, where the outer terminal (4), insulator (2) and inner terminal (1) are all rigidly attached to one another and the back nut (3) is rotatable and longitudinally displaceable along the outer terminal (4).
Figure 2 illustrates an embodiment of a connector according to the invention in its near-closed state where, the cable (5) is mounted and in contact with the inner terminal (1 ) and while the cable's stripped and cleaned outer conductor (7) is positioned in the gap between the outer terminal (4) and the back nut (3). In this embodiment, the outer conductor (7) has been flared using a special tool which stops the back nut (3) slipping off the end of the cable (5) and enables the outer conductor (7) to be clamped between the front end (4) and the back nut (3). It should however be noted that this flaring might not be necessary as long as the outer conductor (7) has a secure conductive contact with the outer terminal (4) and/or back nut (3). The presence of an O-ring (6) should also be noted. This O-ring ensures that moisture does not enter via the connection between the outer terminal (4) and the back nut (3) and interferes with the contacts.
Figure 3 is an enlarged view of this connection between the outer terminal (4) and back nut (3) where the O-ring is not shown. Here it can be seen that the end portion (L) of the outer conductor (7) is stripped of its jacket and a sufficient amount of dielectric material and has been flared to ensure it is inserted into the gap created by the corresponding contact faces (8, 9). The figure shows how the end portion (L) of the outer conductor is clamped between the back nut (3) and the outer terminal (4) with contact being along the corresponding faces (8, 9) ensuring a good mechanical connection and also conductive connection with the outer terminal's contact face (8).
The preferred, simplified process of cable mounting is carried out as follows: The cable (5) end to be connected is stripped of its jacket and dielectric material to enable a conductive connection. The cable (5) is inserted through the back nut (3) and the cable's outer conductor is flared and shaped along the back nut's (3) inner circumference with the aid of a specialised tool, while the extrusion is simultaneously cleaned of glue and the like. The outer terminal (4) is then attached to the back nut (3) and screwed until there is a mechanical stop. The connector and cable are now attached.
In a further embodiment neither the jacket nor dielectric material is removed from the cable end to be connected, as long as there is a sufficient contact between the outer conductor (7) and the outer terminal (4). The end portion of the cable (L) is inserted through the back nut (3). A tool may then be used which prizes the end portion (L) of the outer conductor (7) away from the dielectric and flares it as mentioned before. Thus, the flared end portion (L) to come into contact with the outer terminal's contact face (8) can be cleaned to ensure a stable connection and the flaring, when clamped between the corresponding faces (8, 9) ensures and secures mechanical connection.
Yet another embodiment is a combination of the two previous embodiments. Here a sufficient amount of dielectric material is removed from the end portion (L) of the cable and the contact surface of the outer conductor (7) is cleaned and flared as before with the back nut (3) having been slid onto the end portion (L). The back nut (3) is then longitudinally displaced so that the flared outer conductor (7) and adjoined insulating jacket are clamped securely between the outer terminal's contact face (8) and the abutting back nut face (9).

Claims

1. Method of attachment of a coaxial cable to a coaxial connector comprising the following steps: a) End portion (L) of cable (5) is inserted through back nut (3). b) The outer conductor's end portion (L) is formed to correspond to the outer terminal's contact face (8) and the back nut's abutting face (9). c) The front end (1 , 2, 4) and back nut (3) are brought towards each other until the end portion (L) is secured between the corresponding faces (8, 9) and fastened.
2. The method according to claim 1 furthermore comprising the step of cleaning at least the surface of said portion (L) of the outer conductor (7).
3. The method according to claim 1 furthermore comprising the step of removing a sufficient amount of insulating jacket from end portion (L).
4. The method according to claim 1 furthermore comprising the step of removing a sufficient amount of dielectric material.
5. A coaxial connector device, comprising a front end (4) and a longitudinally displaceable back nut (3) at its cable receiving end, characterised in that said front end (4) and back nut (3) comprise corresponding faces (8, 9), such that the end portion (7) of the outer conductor of the cable (5) becomes clamped within a gap formed between said faces (8, 9) when the back nut (3) is in its closed position.
6. Connector device according to claim 3, characterised in that said mechanical connection is established solely by said clamping of the end portion (7) within the gap formed between the corresponding faces (8, 9).
7. Connector device according to claim 3, characterised in that the cable is a corrugated cable.
8. Connector device according to claim 3, characterised in that the cable is a non-corrugated cable.
EP03735339A 2003-07-04 2003-07-04 Coaxial connector Expired - Lifetime EP1642362B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2003/000473 WO2005004290A1 (en) 2003-07-04 2003-07-04 Coaxial connector

Publications (2)

Publication Number Publication Date
EP1642362A1 true EP1642362A1 (en) 2006-04-05
EP1642362B1 EP1642362B1 (en) 2007-04-25

Family

ID=33560698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03735339A Expired - Lifetime EP1642362B1 (en) 2003-07-04 2003-07-04 Coaxial connector

Country Status (8)

Country Link
EP (1) EP1642362B1 (en)
CN (1) CN1802776B (en)
AT (1) ATE360899T1 (en)
AU (1) AU2003236829A1 (en)
DE (1) DE60313511T2 (en)
DK (1) DK1642362T3 (en)
ES (1) ES2285134T3 (en)
WO (1) WO2005004290A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005061672B3 (en) * 2005-12-22 2007-03-22 Spinner Gmbh Coaxial cable connector has screw-fit sleeve cable strand trap with an inner thread
US7189114B1 (en) 2006-06-29 2007-03-13 Corning Gilbert Inc. Compression connector
US8475204B2 (en) * 2010-09-02 2013-07-02 Tyco Electronics Corporation Electrical connector having shaped dielectric insert for controlling impedance
US9172156B2 (en) 2010-10-08 2015-10-27 John Mezzalingua Associates, LLC Connector assembly having deformable surface
US8449325B2 (en) 2010-10-08 2013-05-28 John Mezzalingua Associates, LLC Connector assembly for corrugated coaxial cable
US8430688B2 (en) 2010-10-08 2013-04-30 John Mezzalingua Associates, LLC Connector assembly having deformable clamping surface
US8439703B2 (en) 2010-10-08 2013-05-14 John Mezzalingua Associates, LLC Connector assembly for corrugated coaxial cable
US8435073B2 (en) 2010-10-08 2013-05-07 John Mezzalingua Associates, LLC Connector assembly for corrugated coaxial cable
US8628352B2 (en) 2011-07-07 2014-01-14 John Mezzalingua Associates, LLC Coaxial cable connector assembly
US9083113B2 (en) 2012-01-11 2015-07-14 John Mezzalingua Associates, LLC Compression connector for clamping/seizing a coaxial cable and an outer conductor
US9099825B2 (en) 2012-01-12 2015-08-04 John Mezzalingua Associates, LLC Center conductor engagement mechanism
US9017102B2 (en) 2012-02-06 2015-04-28 John Mezzalingua Associates, LLC Port assembly connector for engaging a coaxial cable and an outer conductor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3264602A (en) * 1964-03-13 1966-08-02 Automatic Metal Products Corp Electrical connectors for coaxial cables
US4135776A (en) * 1977-01-28 1979-01-23 E. F. Johnson Company Solderless coaxial cable connector
GB9505416D0 (en) * 1995-03-17 1995-05-03 Scottwarner Limited Cable connectors
CA2181840C (en) * 1995-08-04 2000-05-16 Lee F. Allison Connector for coaxial cable
CH690946A5 (en) * 1996-04-19 2001-02-28 Pma Ag Cable connector for equipment casing which provides sound mechanical connection and earthing, includes screwed compression fitting which grips conductive cable sheath
SE510051C2 (en) * 1998-02-17 1999-04-12 Teracom Components Ab Contact device for high frequency cables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005004290A1 *

Also Published As

Publication number Publication date
DE60313511T2 (en) 2007-12-27
DE60313511D1 (en) 2007-06-06
ES2285134T3 (en) 2007-11-16
DK1642362T3 (en) 2007-07-30
CN1802776A (en) 2006-07-12
ATE360899T1 (en) 2007-05-15
CN1802776B (en) 2010-12-08
EP1642362B1 (en) 2007-04-25
WO2005004290A1 (en) 2005-01-13
AU2003236829A1 (en) 2005-01-21

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