EP0211710B1 - Anschlussklemme für Kabelleiter - Google Patents

Anschlussklemme für Kabelleiter Download PDF

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Publication number
EP0211710B1
EP0211710B1 EP86401413A EP86401413A EP0211710B1 EP 0211710 B1 EP0211710 B1 EP 0211710B1 EP 86401413 A EP86401413 A EP 86401413A EP 86401413 A EP86401413 A EP 86401413A EP 0211710 B1 EP0211710 B1 EP 0211710B1
Authority
EP
European Patent Office
Prior art keywords
branches
connecting terminal
terminal according
screw
orifice
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.)
Expired - Lifetime
Application number
EP86401413A
Other languages
English (en)
French (fr)
Other versions
EP0211710A1 (de
Inventor
Christian Odeau
Gérard Roger Marcel Dumoulin
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.)
TONNA ELECTRONIQUE
Original Assignee
TONNA ELECTRONIQUE
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 TONNA ELECTRONIQUE filed Critical TONNA ELECTRONIQUE
Priority to AT86401413T priority Critical patent/ATE53267T1/de
Publication of EP0211710A1 publication Critical patent/EP0211710A1/de
Application granted granted Critical
Publication of EP0211710B1 publication Critical patent/EP0211710B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R9/0515—Connection to a rigid planar substrate, e.g. printed circuit board
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/42—Clamping area to one side of screw only
    • 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 to a connection terminal for cable conductor, and in particular such a terminal intended to be fixed by soldering, in the manner of a conventional discrete component, on a printed circuit.
  • the present invention applies in particular to the connection of a coaxial cable conductor.
  • connection terminals for coaxial cable conductor intended to be fixed by soldering on a printed circuit hitherto proposed are generally composed of a plate fixed on the printed circuit, of a separate counter-plate arranged in look of the aforementioned wafer and biased in approach thereof by a clamping screw.
  • connection device for coaxial cable formed of a part which has at a first of its ends a clamp intended to come into electrical contact with the shielding of the coaxial cable, which has at its second end a clamp intended to come into electrical contact with the central conductor of the electric cable, a separable connecting member initially connecting the two ends of the part, tabs projecting from each of the ends to be fixed by welding to a printed circuit, and heat-shrinkable sleeves provided with welding inserts, placed respectively on each of the ends of the part.
  • document FR-A-1 466 954 has proposed a connection terminal for a cable conductor of the type consisting of a piece of sheet metal clamp comprising two facing branches connected by a connecting bridge which their is generally transverse, one of the branches having an orifice which receives the body of a clamping screw, this branch also serving to support the head of the screw and the other branch having an opening, opposite the orifice, with which the thread of the screw engages to clamp a cable conductor introduced between the branches.
  • connection terminals defined above, in accordance with the present invention have a greater clamping dynamic than the conventional connection terminals.
  • connection terminals in accordance with the present invention have better resistance to tearing.
  • connection terminals in accordance with the present invention have also shown that they have a lower electrical resistance than the conventional connection terminals with wafer and backplate, which is of course essential for the quality of the connection. .
  • This advantage seems essentially due to the fact that according to the invention, the two branches are made in one piece, while in the past, the plate and the counterplate of the connection terminals were produced separately and electrically connected by the clamping screw.
  • connection terminal according to the present invention can have a rapid pitch tightening.
  • connection terminal in the open position, without risking losing the tightening screw.
  • this advantage results from the realization of the connection terminal according to the present invention in one piece, so that thanks to the residual elasticity between the branches of the clamp, one engaged with the thread of the clamping screw, the other pressing against the head thereof, the screw is not subject to loosening as a result of various manipulations or vibrations.
  • connection terminals with wafer and counter-wafer in the open, non-tight position of the terminal, the screw is very sensitive to vibrations and therefore subject to loosening. For this reason, it has hitherto been essential to deliver the connection terminals to wafer and backplate, for cable conductor, in the tight closed position in order to block the clamping screw.
  • connection terminals should first be placed in the open position, taking care in this state not to lose the clamping screw.
  • a coaxial cable generally comprises an electrically conductive central core, coated with an electrically insulating protection wrapped in a cylindrical braid made of electrically conductive material, serving as ground and / or shielding, the whole being covered with an electrically insulating protection.
  • connection terminal can be the subject of various embodiments adapted respectively to be connected to the central conductive core of the coaxial cable or to the ground shielding of the latter.
  • the connecting bridge is curved towards the inside of the clamp.
  • connection terminals intended to be connected to the ground shield preferably applies to the connection terminals intended to be connected to the ground shield.
  • each branch has the general shape of an "L".
  • the aforementioned fin in the form of a cylindrical cap is advantageously flared outwards at the level of the driver's engagement zone, in order to facilitate the introduction of the latter into the terminal.
  • the width of the connecting bridge is less than the width of these.
  • This characteristic makes it possible in particular to make the central conductive core of the coaxial cable protrude on the outside of the connection terminal, next to the connecting bridge, and thus to easily verify the correct positioning of the central conductive core on the terminal. connection.
  • the opening capable of cooperating with the thread of the screw, produced in one of the branches of the clamp is advantageously formed by cutting and deformation of tongues in the aforementioned branch.
  • the clamp constituting the connection terminal is made of treated spring steel and then coated with a metallic deposit making it suitable for being soldered with tin.
  • connection terminals for ground shielding of coaxial cable illustrated in FIGS. 1 to 10.
  • connection terminals 10 comprise two branches 20, 40 generally parallel, connected by a connecting bridge 60 which is generally transverse to them.
  • each branch of the connection terminal 10 has the general shape of an "L".
  • each branch is formed of a main fin 21, 41 connected to the connecting bridge 60, and a secondary fin 22, 42 connected to the main fin 21, 41, at a distance from the connecting bridge 60, in being generally transverse thereto, like an "L".
  • branches 20 and 40 will be called respectively upper branch and lower branch, without this designation can be considered as limiting tive regarding the positioning of the terminal in use.
  • the main wing 21 of the upper branch 20 is provided in the vicinity of its end opposite to the connecting bridge 60 with a generally circular orifice 23 intended to receive the body of a clamping screw 90 through it.
  • the center of the orifices 23 coincides with the intersection of the median longitudinal axes of the main fin 21 and the secondary wing 22, as illustrated respectively 24 and 25 in FIG. 4.
  • the diameter of the orifice 23 is less than the diameter of the head 91 of the clamping screw 90, so that the external surface of the upper branch 20, opposite the branch 40 serves to support the head 91 of the screw.
  • the main fin 41 of the lower branch 40 has an opening 43 formed opposite the aforementioned orifice 23 and adapted to engage with the thread of the screw 90 to allow the two branches 20, 40 to be brought together when the screw 90 is rotated in the opening 43, to clamp a cable conductor introduced between the branches 20, 40.
  • the center of the opening 43 preferably coincides with the intersection of the median longitudinal axes of the main fin 41 and the secondary fin 42 homologous to the axes 24 and 25 schematically represented in FIG. 4.
  • the aforementioned openings 43 can be the subject of various variant embodiments known per se for the assembly of screws on sheets.
  • the opening 43 adapted to cooperate with the thread of the screw 90 is formed by cutting and deformation of the tongues 44,45 towards the outside of the clamp 10.
  • the lower branch is further provided with a plurality of legs 46, 47, 48 projecting outwards from the clamp substantially perpendicular to the lower branch 40, the latter apart from the legs 46, 47, 48 and the tongues 44, 45 being generally planar.
  • two tabs 47, 48 formed by folding on the free front edge 49 of the lower branch 40, opposite the connecting bridge 60 and generally parallel thereto.
  • a third tab 46 formed by folding on the free edge 50 of the secondary fin 42 directed towards the connecting bridge 60 and substantially parallel thereto.
  • the secondary fin 22 of the upper branch 20 has the general shape of a semi-cylindrical cap of revolution about an axis (schematically illustrated 26 in FIG. 4) parallel to the above-mentioned axis 24 and therefore substantially orthogonal to the connecting bridge 60.
  • this secondary fin 22 and consequently its radius of curvature are of course adapted to allow close contact against the generally cylindrical mass shield of the coaxial cable, pinched in use between the secondary fins 22 and 42.
  • the fin 22 in the form of a cylindrical cap is flared outwards at the level of the driver's engagement zone, ie at the free edge 28 of the secondary fin 22 which is opposite to the connecting bridge 60 and substantially parallel thereto.
  • folds 29, 30 forming a stiffener are formed on the free edges 31, 32 respectively orthogonal to the main fin 21, and respectively parallel to the axes 24 and 25 above.
  • the stiffeners 29, 30 are formed by folding the edges 31, 32 towards the inside of the clamp, ie towards the lower branch 40.
  • the connecting bridge 60 is curved towards the inside of the clamp.
  • This characteristic makes it possible to limit the external dimensions of the terminal 10, and thus to bring the above-mentioned terminal 10 closer to a terminal 100, as illustrated in FIGS. 11 and 12 intended to be connected to the central conductive core of the coaxial cable. , while respecting the generally imposed electrical specifications.
  • the width of the connecting bridge 60 considered substantially parallel to the branches 20 and 40 is equal to the width of the main fins 21, 41 considered transversely to the aforementioned axis 24.
  • connection terminals 10 are supplied in the form of strips of a plurality of terminals connected together by tabs 70 connecting the lower branches 40 of the various terminals 10 to one another. This characteristic is particularly advantageous when the shields of different coaxial cables connected to the same printed circuit base have a common ground.
  • These connecting tabs 70 preferably have a small width so that the tabs can be easily cut in the case where a single terminal 10 must be used or even when the different terminals 10 fixed on a common base 1 of the printed circuit must not be connected to each other.
  • connection terminal 100 illustrated in Figures 11 to 14 intended to be connected to the central conductive core of a coaxial cable.
  • the terminal 100 includes two facing arms 120, 140 connected by a connecting bridge 160 which is generally transverse to them.
  • branches 120 and 140 will be called respectively upper branch and lower branch without this designation can be considered as limiting with regard to the positioning of the terminal in use.
  • Each branch 120, 140 is generally planar and has a substantially rectangular outline.
  • the upper branch 120 is provided with an orifice 123 receiving the body of a clamping screw 190 therein.
  • the diameter of the orifice 123 is less than the diameter of the flared head of the clamping screw 190.
  • the surface external 121 of the upper branch 120, opposite the lower branch 140 serves to support the head of the screw 190.
  • the orifice 123 is preferably made in a central position on the upper wing 120.
  • the lower wing 140 has an opening 142 opposite the orifice 123, adapted to engage with the thread of the clamping screw 190, to urge, during the rotation of the screw 190 in the opening 143, the bringing branches 120 and 140 together to clamp the central conductor of the coaxial cable between branches 120 and 140.
  • the opening 143 can be the subject of various alternative embodiments.
  • the opening 143 is produced by cutting tabs 144, 145 in the lower branch 140 and deformation of these towards the outside of the clamp, as illustrated in FIG. 11.
  • the connecting bridge 160 connecting elastically the branches 120 and 140 has a convex envelope towards the outside of the clamp, and generally semi-cylindrical of revolution around an axis parallel to the bases 120 and 140 above.
  • the upper branch 120 is provided with projecting lugs 146, 147, 148, adapted, similarly to the aforementioned lugs 46, 47 and 48, to be introduced into orifices formed in the support base 1 of the printed circuit and, to this level, be connected by welding to electrical connections.
  • the upper branch 120 is provided on each of its four corners with a tab (146, 147, 148) folded perpendicular to the plane of the upper branch 120 towards the lower branch 140, in protruding well beyond the latter, to be engaged in the aforementioned orifices provided in the printed circuit base 1.
  • each of the tabs projecting from the upper branch 120 preferably has a first part 149 adjacent to the upper branch 120 which is extended by a second part 150 of smaller width.
  • the recess provided between the two parts 149, 150 delimits a bearing surface 151 generally parallel to the branches 120, 140 and directed towards the free end of the legs 146, 147 and 148 to serve as a stop for the connection terminal 100 during the positioning of these on the printed circuit base 1.
  • the Width 1 1 of bridge 160 viewed parallel to the arms 120, 140 is less than the widths 12 of the corresponding branches 120, 140.
  • the central core introduced into terminal 100 by the opening of the latter opposite the connecting bridge 160 can emerge outside the terminal 100, next to the bridge 160, which allows the installer to easily control the correct positioning of the electrically conductive core A.
  • connection terminals 10 and 100 are made of treated spring steel then coated with a metallic deposit making it suitable for being soldered with tin, to allow assembly of the terminals on a base of printed circuit 1, by soldering, for example by wave soldering in the manner of a conventional discrete component.
  • non-return hooks on the terminals, in particular on terminal 10.
  • These non-return hooks can be adapted to sink into the insulating-dielectric part of the cable and making it more difficult to pull it out by traction.
  • three hooks 51 of generally triangular shape are thus represented formed by cutting tabs in the fin 42 and deformation of these tabs towards the inside of the terminal, the point of the hooks being directed towards the free edge 50 to achieve a non-return effect.
  • hooks 33 are shown on the secondary fin 22. These hooks 33 are elongated transversely to the axis of curvature of the fin. The hooks 33 are produced by cutting tongues in the fin 22 and deformation towards the inside of the terminal, the free edge of the hooks 33 being directed towards the connecting bridge 60.
  • the engagement edges of the branches 120, 140 of the terminal 100 are flared outwards, as illustrated in 170, 180.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Cable Accessories (AREA)
  • Ropes Or Cables (AREA)
  • Multi-Conductor Connections (AREA)
  • Insulated Conductors (AREA)

Claims (11)

1. Anschlußklemme (10) für Kabelleiter des Typs, der aus einer Klemme mit einem einzigen Halter aus Blech mit zwei gegenüberliegenden Zweigen (29, 40), die mit einer dazu im allgemeinen transversalen Verbindungsbrücke (60) verbunden sind, besteht, wobei einer der Zweige (20) eine Öffnung (23) besitzt, die den Körper einer Befestigungsschraube (90) aufnimmt, wobei dieser Zweig außerdem als Stütze für den Schraubenkopf dient und wobei der andere Zweig (40) eine Öffnung (43) gegenüber der Öffnung (23) besitzt, in die das Gewinde der Schraube (90) greift, um einen zwischen die Zweige eingeführten Kabelleiter festzuziehen gekennzeichnet durch die Tatsache, daß
sie auf einem der Zweige aufliegende Klauen (46, 47, 48) aufweist, die geeignet sind, in die Öffnungen einer Stützplatte, die eine gedruckte Schaltung bildet, eingeführt zu werden und auf dieser Ebene durch Verschweißen mit elektrischen Verbindungen verbunden zu werden,
daß wenigstens einer der Zweige (20, 40) die allgemeine Form eines "L" besitzt und aus einem Hauptflügel (21, 41), der an der Verbindungsbrücke (60) befestigt ist, und einen zweiten Flügel (22, 42) besteht, der an dem Hauptflügel befestigt ist und im allgemeinen zu diesem transversal ist,
daß der zweite Flügel (22, 42) die Form einer zylindrischen, nach außen gewölbten Kappe besitzt, die bestimmt ist, mit dem Leiter in Kontakt gebracht zu werden, und
daß wenigstens ein freier Rand (31, 32) des Hauptflügels (21) durch Falten verformt ist, um eine Versteifung zu bilden.
2. Anschlußklemme nach Anspruch 1, gekennzeichnet durch die Tatsache, daß die Verbindungsbrücke (60) zum Innern der Klemme gekrümmt ist.
3. Anschiußklemme nach Anspruch 1 oder 2, gekennzeichnet durch die Tatsache, daß jeder Zweig (20, 40) die allgemeine Form eines "L"' besitzt.
4. Anschlußklemme nach einem der Ansprüche 1 bis 3, gekennzeichnet durch die Tatsache, daß der zweite Flügel (22) in der Form einer zylindrischen Kappe auf der Höhe einer Anschlußzone (28) des Leiters nach außen ausgeweitet ist.
5. Anschlußklemme nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die Tatsache, daß der Hauptflügel (21, 41) mit einer Öffnung (23) oder einem Einlaß (43) versehen ist, der die Schraube (90) aufnimmt.
6. Anschlußklemme nach einem der Ansprüche 1 bis 5, gekennzeichnet durch die Tatsache, daß die Breite 11 der Verbindungsbrücke (60) in einer Richtung im allgemeinen Parallel zu den Zweigen betrachtet geringer ist als die Breite 12 der letzteren.
7. Anschlußklemme nach einem der Ansprüche 1 bis 6, gekennzeichnet durch die Tatsache, daß der Einlaß (43), der geeignet ist, mit dem Gewinde der Schraube (90) zusammenzuwirken, durch Abschneiden und Verformen von Zungen (44,45) in einem der Zweige gebildet wird.
8. Anschlußklemme nach einem der Ansprüche 1 bis 7, gekennzeichnet durch die Tatsache, daß sie aus behandeltem und dann mit einer Metallauflage verkieldeten Federstahl gebildet ist, die den Stahl geeignet macht, mit Zinn gelötet zu werden.
9. Anschlußklemme nach einem der Ansprüche 1 bis 8, gekennzeichnet durch die Tatsache, daß wenigstens bestimmte Klauen (46, 47, 48) aus zwei Teilen unterschiedlicher Breite bestehen, die an ihrer Schnitfläche eine Stützfläche (151) bilden, die einen Anschlag bei der Positionierung der Anschlußklemme auf der Stützplatte bildet.
10. Anschlußklemme nach einem der Ansprüche 1 bis 9, gekennzeichnet durch die Tatsache, daß sie in der Form eines Bandes ausgeliefert wird, das mehrere, untereinander über entfernbare Zungen (70) verbundene Anschlußklemmen aufweist.
11. Anschlußklemme nach einem der Ansprüche 1 bis 10, gekennzeichnet durch die Tatsache, daß wenigstens eine der inneren Oberflächen der Zweige mit Widerhaken (51, 33) versehen ist, die geeignet sind, das Losreißen des Kabels durch Zug zu verhindern.
EP86401413A 1985-06-28 1986-06-26 Anschlussklemme für Kabelleiter Expired - Lifetime EP0211710B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86401413T ATE53267T1 (de) 1985-06-28 1986-06-26 Anschlussklemme fuer kabelleiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8509890 1985-06-28
FR8509890A FR2584239B1 (fr) 1985-06-28 1985-06-28 Borne de raccordement pour conducteur de cable

Publications (2)

Publication Number Publication Date
EP0211710A1 EP0211710A1 (de) 1987-02-25
EP0211710B1 true EP0211710B1 (de) 1990-05-30

Family

ID=9320775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401413A Expired - Lifetime EP0211710B1 (de) 1985-06-28 1986-06-26 Anschlussklemme für Kabelleiter

Country Status (4)

Country Link
EP (1) EP0211710B1 (de)
AT (1) ATE53267T1 (de)
DE (1) DE3671681D1 (de)
FR (1) FR2584239B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH045064U (de) * 1990-04-26 1992-01-17
US5061827A (en) * 1990-06-27 1991-10-29 Amp Incorporated Termination of a small coaxial cable
CH690531A5 (de) * 1994-03-10 2000-09-29 Reichle & De Massari Fa Vorrichtung zum Anschluss abgeschirmter Leiter in der Telefonie und Datenkommunikation.
GB9508839D0 (en) * 1995-05-01 1995-06-21 Caradon Mk Electric Ltd An electrical connector
GB9611141D0 (en) * 1996-05-30 1996-07-31 Amp Gmbh Coaxial connector for PCB
US6625432B1 (en) 1998-05-25 2003-09-23 Mitsubishi Denki Kabushiki Kaisha Receiver
DE10103442C2 (de) * 2001-01-25 2002-11-28 Phoenix Contact Gmbh & Co Schirmklemme
FR2826084B1 (fr) * 2001-06-15 2003-08-15 Nexans Bride universelle pour element cylindrique en particulier pour cable
US9457942B2 (en) 2013-05-06 2016-10-04 Panduit Corp. Extended support clip for a metal locking tie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019409A (en) * 1959-04-15 1962-01-30 United Carr Fastener Corp Grounding clip
GB960291A (en) * 1962-05-08 1964-06-10 Amp Inc Electrical connector for connecting a lead to the braid of a braid-shielded cable
FR1466954A (fr) * 1965-02-04 1967-01-20 Amp Inc Connecteur électrique
US3657683A (en) * 1970-08-14 1972-04-18 Pass & Seymour Inc Combination lead wire terminal
BE794947A (fr) * 1972-02-02 1973-08-02 Raychem Corp Procede et dispositif de connexion
DE2522898C3 (de) * 1975-05-23 1982-10-21 Hans Kolbe & Co, 3202 Bad Salzdetfurth Schelle für Koaxialkabel

Also Published As

Publication number Publication date
EP0211710A1 (de) 1987-02-25
FR2584239A1 (fr) 1987-01-02
FR2584239B1 (fr) 1988-07-08
ATE53267T1 (de) 1990-06-15
DE3671681D1 (de) 1990-07-05

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