EP0022627A1 - Electrical connector for terminating coaxial electrical cable - Google Patents
Electrical connector for terminating coaxial electrical cable Download PDFInfo
- Publication number
- EP0022627A1 EP0022627A1 EP80302052A EP80302052A EP0022627A1 EP 0022627 A1 EP0022627 A1 EP 0022627A1 EP 80302052 A EP80302052 A EP 80302052A EP 80302052 A EP80302052 A EP 80302052A EP 0022627 A1 EP0022627 A1 EP 0022627A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- body member
- cable
- ferrule
- connector
- fingers
- 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
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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
Abstract
Description
- This invention relates to an electrical connector for terminating coaxial electrical cable, and particularly cable of the type having a semi-rigid tubular solid outer conductor, for example of copper, surrounding a dielectric member which in turn surrounds a centre conductor.
- Known methods of terminating such cable, and in particular of establishing an electrical connection to the outer conductor thereof, include the use of solder, or the use of an electrical connector including a back-up member which is inserted between the outer conductor and the dielectric layer and a crimping sleeve which is then crimped on to the outer conductor over the back-up member.
- Such known methods are relatively difficult to carry out and do not always provide acceptable connections, since with the use of solder the necessary heat can damage the dielectric layer of the cable, and with the crimping method the necessary flaring of the outer conductor for insertion of the back-up member is particularly difficult with small cables, and can also introduce undesirable changes in characteristic impedance across the connection.
- In U.S. Patent Specification No. 3,533,051 there is described an electrical connector in which these difficulties are overcome.
- This known electrical connector comprises a tubular conductive body member having two axially aligned portions of mutually different internal diameter, through both of which portions the cable can pass, and a ferrule locatable within the larger internal diameter portion of the body member with the cable passing through the ferrule, the ferrule being deformable under forces applied thereto axially of the cable thereby to secure the cable within the body with the outer conductor of the cable electrically connected to the body member.
- In this known connector the ferrule is of ductile material and is contained wholly within the larger internal diameter portion of the body member, the axial forces applied to the ferrule causing inelastic deformation thereof and also slight deformation of the body member and the outer conductor of the cable, the deformation being such as to provide residual stress in the body member and in the cable sufficient to lock the body member to the cable and thus provide the required electrical and mechanical connection.
- A difficulty which arises with this known connector is that in order to compress the ferrule axially as required a tool must be used, which has a part which can enter the larger internal diameter portion of the body member while surrounding the cable, and this can cause difficulties with connectors of relatively small size. Further, the tooling used must comprise a plurality of parts which must be assembled about a connector and cable to be connected and which must be disassembled and removed after use.
- According to this invention a known connector as set out above is characterised in that the ferrule comprises a tubular body portion having an outwardly directed annular flange at one end, and a plurality of axially extending fingers extending from the periphery at the other end, the arrangement being such that with the body member and ferrule mounted on a cable with the fingers on the ferrule directed towards the smaller internal diameter portion of the body member, movement of the ferrule axially along the cable with the body member held fixed relative to the cable, causes the fingers on the ferrule to be deflected inwardly on entry into the smaller diameter end portion of the body member, the fingers becoming compressed between the cable and the wall of the smaller diameter end portion of the body member and causing deformation of the outer conductor of the cable whereby an electrical connection is established between the outer conductor of the cable and the body member.
- The connector of this invention has the advantages that the ferrule extends beyond the limits of the body member and is thus readily accessible to simple tooling which can be used to move the ferrule axially of the body member as required.
- This invention will now be described by way of example with reference to the drawings, in which:-
- Figure 1 is an exploded perspective view of a connector according to this invention;
- Figure 2 is a longitudinal sectional view of the connector of Figure 1 in a partly assembled state;
- Figure 3 is a view similar to Figure 2 but showing the connector fully assembled, and also showing part of the tooling used for assembly;
- Figure 4 is a view on the line IV - IV in Figure 3;
- Figure 5 is a perspective view of a centre contact member for use in another connector according to this invention; and
- Figure 6 is a longitudinal sectional view of the other connector in the assembled state.
- The connector shown in Figures 1 to 4 is for terminating a coaxial
electrical cable 100 having a semi-rigid tubular solidouter conductor 101 which surrounds adielectric material layer 102 which in turn surrounds asolid centre conductor 103, and comprises a tubular conductive metal body member 1 having two axially alignedportions portions cable 100 can pass, as shown in Figure 2. At the junction between itsportions annular rib 4. The largerinternal diameter portion 2 of the body member 1 is formed with a plurality of axially extendingsplines 5, best seen-in Figure 1. - The connector also comprises a
coupling ring 6 having a hexagonal external cross-section for cooperation with a spanner and being internally threaded, as shown at 7, from one end, and having an inwardly directedannular lip 8 at the other end. Thelip 8 defines an aperture which will receive theportion 2 of the body member 1 but will not pass therib 4 thereof. - Completing the connector are an annnular resilient sealing member 9 having an external diameter substantially equal to that of the
rib 4 on the body member 1, and an internal diameter to receive theportion 3 of the body member 1 and be retained thereon, and ametal ferrule 10. - The
ferrule 10 comprises atubular body portion 11 having an outwardly directedannular flange 12 at one end, and a plurality of axially extendingpointed fingers 13 extending from the periphery at the other end, thefingers 13 being thinner than the remainder of theferrule 10. - For use of the connector described above, the end of the
cable 100 is prepared by removal of portions of theouter conductor 101 anddielectric layer 102 to leave a portion of thecentre conductor 103 exposed as shown in the drawings, to constitute a centre contact for the connector. - The sealing member 9 is mounted on the
portion 3 of the body member 1 abutting therib 4, and thecoupling ring 6 is mounted on theportion 2 of the body member 1 with thelip 8 abutting therib 4 and thecoupling ring 6 extending over and beyond theportion 3 of the body member 1. - The
ferrule 10 is positioned on thecable 100 with thefingers 13 of theferrule 10 directed towards the free end of thecable 100, and the free end of thecable 100 is then inserted into the body member 1 through the free end of portion. 2 thereof until the end of theouter conductor 101 anddielectric layer 102 are flush with the free end of theportion 3 of the body member 1, as shown in Figure 2. - The
ferrule 10 is then urged axially of and along thecable 100 until thefingers 13 andbody portion 11 of theferrule 10 enter theportion 2 of the body member 1. The assembly is then engaged by a tool (not shown in detail) having a pair of dies one 200 of which (see Figure 3) embraces thecable 100 and engages theflange 12 of theferrule 10 and the other 201 of which engages the free end of thecable 100 within thecoupling ring 6, as shown in Figure 3. The die 201 is formed with ablind hole 202 to freely receive the centre contact portion of thecentre conductor 103 of thecable 100. - The
dies cable 100 towards each other, as indicated by arrows in Figure 3, thereby to urge theferrule 10 further into the body member 1. On such movement of theferrule 10 thefingers 13 thereof are deflected inwardly on entry into the smallerinternal diameter portion 3 of the body member 1, thefingers 13 becoming compressed between theouter conductor 101 of thecable 100 and the wall of theportion 3 of the body member 1, causing slight deformation of theouter conductor 101 of thecable 100, whereby the required electrical connection is established between theouter conductor 101 and the body member 1. As theferrule 10 is urged into theportion 2 of the body member 1 thesplines 5 bite into theferrule body portion 11, as shown in Figure 4, thereby to lock theferrule 10 to the body member 1 and prevent relative rotary movement therebetween. - The
ferrule 10 is urged into the body member 1 until theflange 12 on theferrule 10 abuts the free end of theportion 2 of the body member 1, as shown in Figure 3, whereafter the tooling dies 200, 201 are removed leaving the completed connector terminating thecable 100 and ready for mating with an appropriate other connector (not shown) and coupling thereto by means of thecoupling ring 6. From Figure 3 it can be seen that thelip 8 on thecoupling ring 6 is positioned between therib 4 on the body member 1 and theflange 12 on theferrule 10 whereby thecoupling ring 6 is secured to the body member 1 in relatively rotatable manner. - Referring now to Figures 5 and 6, the connector here shown is similar to that of Figures 1 to 4 and corresponding parts have the same reference numbers.
- The essential difference is that this other connector uses a separate
centre contact member 300 which is crimped to thecentre conductor 103 of thecable 100 rather than using thecentre conductor 103 itself as the centre contact. Thecontact member 300 is supported, in known manner, within theportion 3 of the body member 1, by adielectric material insert 301 located at the free end of theportion 2.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80302052T ATE3924T1 (en) | 1979-07-09 | 1980-06-18 | ELECTRICAL CONNECTOR FOR CONNECTING ELECTRICAL COAXIAL CABLES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5556479A | 1979-07-09 | 1979-07-09 | |
US55564 | 1979-07-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0022627A1 true EP0022627A1 (en) | 1981-01-21 |
EP0022627B1 EP0022627B1 (en) | 1983-06-22 |
Family
ID=21998700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80302052A Expired EP0022627B1 (en) | 1979-07-09 | 1980-06-18 | Electrical connector for terminating coaxial electrical cable |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0022627B1 (en) |
JP (1) | JPS5953668B2 (en) |
AT (1) | ATE3924T1 (en) |
BR (1) | BR8004230A (en) |
CA (1) | CA1132215A (en) |
DE (1) | DE3063872D1 (en) |
ES (1) | ES493189A0 (en) |
HK (1) | HK81586A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0167738A2 (en) * | 1984-06-04 | 1986-01-15 | Allied Corporation | Electrical connector having means for retaining a coaxial cable |
EP0402627A1 (en) * | 1989-05-17 | 1990-12-19 | The Whitaker Corporation | Terminating a shield of a malleable coaxial cable |
CN101667690B (en) * | 2008-09-05 | 2013-01-02 | 德尔菲技术公司 | Cable connector |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6309251B1 (en) * | 2000-06-01 | 2001-10-30 | Antronix, Inc. | Auto-seizing coaxial cable port for an electrical device |
US8585438B2 (en) | 2012-03-21 | 2013-11-19 | Antronix, Inc. | Ground maintaining auto seizing coaxial cable connector |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1117687B (en) * | 1960-07-05 | 1961-11-23 | Georg Spinner Dipl Ing | Connector fitting for coaxial high-frequency cables with solid metal sheath |
US3448430A (en) * | 1967-01-23 | 1969-06-03 | Thomas & Betts Corp | Ground connector |
US3537065A (en) * | 1967-01-12 | 1970-10-27 | Jerrold Electronics Corp | Multiferrule cable connector |
US3544705A (en) * | 1968-11-18 | 1970-12-01 | Jerrold Electronics Corp | Expandable cable bushing |
FR2234680A2 (en) * | 1973-06-20 | 1975-01-17 | Spinner Georg | |
US3879102A (en) * | 1973-12-10 | 1975-04-22 | Gamco Ind Inc | Entrance connector having a floating internal support sleeve |
-
1980
- 1980-06-10 CA CA353,728A patent/CA1132215A/en not_active Expired
- 1980-06-18 AT AT80302052T patent/ATE3924T1/en not_active IP Right Cessation
- 1980-06-18 EP EP80302052A patent/EP0022627B1/en not_active Expired
- 1980-06-18 DE DE8080302052T patent/DE3063872D1/en not_active Expired
- 1980-07-08 ES ES493189A patent/ES493189A0/en active Granted
- 1980-07-08 JP JP55093200A patent/JPS5953668B2/en not_active Expired
- 1980-07-08 BR BR8004230A patent/BR8004230A/en not_active IP Right Cessation
-
1986
- 1986-10-30 HK HK815/86A patent/HK81586A/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1117687B (en) * | 1960-07-05 | 1961-11-23 | Georg Spinner Dipl Ing | Connector fitting for coaxial high-frequency cables with solid metal sheath |
US3537065A (en) * | 1967-01-12 | 1970-10-27 | Jerrold Electronics Corp | Multiferrule cable connector |
US3448430A (en) * | 1967-01-23 | 1969-06-03 | Thomas & Betts Corp | Ground connector |
US3544705A (en) * | 1968-11-18 | 1970-12-01 | Jerrold Electronics Corp | Expandable cable bushing |
FR2234680A2 (en) * | 1973-06-20 | 1975-01-17 | Spinner Georg | |
US3879102A (en) * | 1973-12-10 | 1975-04-22 | Gamco Ind Inc | Entrance connector having a floating internal support sleeve |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0167738A2 (en) * | 1984-06-04 | 1986-01-15 | Allied Corporation | Electrical connector having means for retaining a coaxial cable |
EP0167738A3 (en) * | 1984-06-04 | 1987-07-22 | Allied Corporation | Electrical connector having means for retaining a coaxial cable |
EP0402627A1 (en) * | 1989-05-17 | 1990-12-19 | The Whitaker Corporation | Terminating a shield of a malleable coaxial cable |
CN101667690B (en) * | 2008-09-05 | 2013-01-02 | 德尔菲技术公司 | Cable connector |
Also Published As
Publication number | Publication date |
---|---|
BR8004230A (en) | 1981-01-21 |
JPS5615573A (en) | 1981-02-14 |
ES8103494A1 (en) | 1981-02-16 |
CA1132215A (en) | 1982-09-21 |
DE3063872D1 (en) | 1983-07-28 |
JPS5953668B2 (en) | 1984-12-26 |
ATE3924T1 (en) | 1983-07-15 |
ES493189A0 (en) | 1981-02-16 |
EP0022627B1 (en) | 1983-06-22 |
HK81586A (en) | 1986-11-07 |
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