WO1994007280A1 - Arrangement for connecting an electric cable shield - Google Patents

Arrangement for connecting an electric cable shield Download PDF

Info

Publication number
WO1994007280A1
WO1994007280A1 PCT/EP1993/002455 EP9302455W WO9407280A1 WO 1994007280 A1 WO1994007280 A1 WO 1994007280A1 EP 9302455 W EP9302455 W EP 9302455W WO 9407280 A1 WO9407280 A1 WO 9407280A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
circuit board
printed circuit
carrier part
clamping pieces
Prior art date
Application number
PCT/EP1993/002455
Other languages
German (de)
French (fr)
Inventor
Eduard Mair
Gundolf Milde
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to DE59301750T priority Critical patent/DE59301750D1/en
Priority to EP93920702A priority patent/EP0662257B1/en
Publication of WO1994007280A1 publication Critical patent/WO1994007280A1/en

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
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
    • H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies

Definitions

  • the invention relates to a device for connecting and / or fixing an electrical cable screen or an electrical switching cable to a plate-shaped carrier part by means of at least one clamp-like clamping piece.
  • Such a device is e.g. made known by DE-PS 27 41 791. Then the cable is clamped between the clamp-shaped clamping piece and a flat support part. If you want the individual wires protruding from the cable along the support part e.g. lead to their connection points, this requires a double curvature first towards the circuit board and then a counter-curvature up to the parallel course to the circuit board.
  • curvatures change the geometric relationship between the signal conductor and the conductor shield, which has an unfavorable effect on the wave resistance of the conductor.
  • the invention has for its object to let the wires emerge from the cable in the most straight possible way.
  • the switching cable is now located in its central axis in the plane of the carrier plate, as a result of which the average exit height of the individual wires and thus their curvature is considerably reduced.
  • the veins can to be stretched along the circuit board so that the wave resistance is hardly changed.
  • Particularly favorable conditions are achieved if the individual wires are distributed over both sides of the carrier plate.
  • the use of two clamping pieces makes it possible for the cable to be clamped largely uniformly around its circumference, as a result of which it is only slightly deformed.
  • the geometry of the cable, in particular the position of the wires remains largely unchanged, which has an advantageous effect on the impedance.
  • the overall height of the device is also reduced by the thickness of the carrier plate.
  • the carrier plate designed as a printed circuit board can have open shielding or ground layers at the points of contact with the clamping pieces, with which the clamping piece is contacted in large numbers and over a large area and which are connected to one another.
  • the cable grommet is held in a simple manner between the two clamping pieces. This is made possible by inserting the cable grommet with its ring groove between the two clamping pieces before assembly. The cable grommet is then held in a form-fitting manner between the clamping pieces.
  • FIG. 1 shows a perspective view of an electrical assembly with connected switching cables
  • FIG. 2 shows a section through the parts according to FIG. 1 transversely to the cable ends.
  • an electrical assembly serving as a cable connector consists of a printed circuit board 1, cover caps 2, a plug part (not shown) and clamp-like clamping pieces 3 between which the ends of two switching cables 4 are clamped with their exposed cable shield. Individual wires 5 of the switching cable 4 are guided from the cable end along the circuit board to connection points 6 of the circuit board.
  • the clamping pieces 3 are located on the rear edge of the printed circuit board 1. This area is provided with openings in this area which extend in the manner of a notch to the rear edge of the printed circuit board.
  • the switching cables 4 protrude into these openings 7.
  • the two same clamping pieces 3 bridge the openings 7 and are attached to both sides of the printed circuit board 1, and are contacted with ground contact surfaces of the printed circuit board 1, the central axis of the cable end being in the central plane of the printed circuit board.
  • the cores are distributed on both sides of the circuit board 1 and guided to the connection points 6 in a largely elongated course.
  • the clamping pieces are provided with legs 8 bent at right angles, which extend perpendicular to the cables 4. These legs point in the opposite direction and are provided with recesses 9 for inserting cable grommets 10. They form a rear wall of the cable connector between the two cover caps 2.

Abstract

A switchboard cable (4) connected to a printed circuit board (1) projects into a notched passage (7) of the printed circuit board (1) in such a way that its center line coincides with the mid-plane of the printed circuit board. Clip-like clamps (3) are set on both sides of the printed circuit board, bridging the passage (7) and clamping the end of the cable. The individual leads (5) of the switchboard cable (4) can thus be guided in a stretched state to the connections (6) of the printed circuit board (1).

Description

Einrichtung zum Anschließen eines elektrischen KabelschirmsDevice for connecting an electrical cable shield
Die Erfindung bezieht sich auf eine Einrichtung zum An¬ schließen und/oder Festlegen eines elektrischen Kabel¬ schirms bzw. eines elektrischen Schaltkabels an einem plattenförmigen Trägerteil mittels zumindest eines schel- lenartigen Klemmstückes.The invention relates to a device for connecting and / or fixing an electrical cable screen or an electrical switching cable to a plate-shaped carrier part by means of at least one clamp-like clamping piece.
Eine derartige Einrichtung ist z.B. durch die DE-PS 27 41 791 bekannt geworden. Danach wird das Kabel zwischen dem schellenförmigen Klemmstück und einem flachen Trägerteil eingeklemmt. Will man die aus dem Kabel herausragenden einzelnen Adern entlang dem Trägerteil z.B. zu ihren An¬ schlußstellen führen, so bedingt dies eine Doppelkrümmung zunächst zur Leiterplatte hin und dann eine Gegenkrümmung bis zum parallelen Verlaufe zur Leiterplatte.Such a device is e.g. made known by DE-PS 27 41 791. Then the cable is clamped between the clamp-shaped clamping piece and a flat support part. If you want the individual wires protruding from the cable along the support part e.g. lead to their connection points, this requires a double curvature first towards the circuit board and then a counter-curvature up to the parallel course to the circuit board.
Z.B. bei hochfrequenz führenden Kabeln mit Koaxialleitern ändern Krümmungen die geometrische Beziehung zwischen dem Signalleiter und dem Leiterschirm, was sich auf den Wellen¬ widerstand des Leiters ungünstig auswirkt.For example, in the case of high-frequency cables with coaxial conductors, curvatures change the geometric relationship between the signal conductor and the conductor shield, which has an unfavorable effect on the wave resistance of the conductor.
Der Erfindung liegt die Aufgabe zugrunde, die Adern in möglichst gestrecktem Verlauf aus dem Kabel austreten zu lassen.The invention has for its object to let the wires emerge from the cable in the most straight possible way.
Diese Aufgabe wird durch die Erfindung gemäß Anspruch 1 gelöst. Das Schaltkabel befindet sich nun in seiner Mittel¬ achse in der Ebene der Trägerplatte, wodurch die durch¬ schnittliche Austrittshöhe der Einzeladern und damit deren Krümmung erheblich verringert wird. Die Adern können nahe- zu gestreckt entlang der Leiterplatte geführt werden, so daß der Wellenwiderstand kaum verändert wird. Besonders günstige Verhältnisse werden erreicht, wenn die Einzel¬ adern auf beide Seiten der Trägerplatte verteilt werden. Durch die Verwendung zweier Klemmstücke ist es möglich, daß Kabel an seinem Umfang weitgehend gleichmäßig einzu¬ klemmen, wodurch es nur geringfügig deformiert wird. Da¬ durch bleibt die Geometrie des Kabels, insbesondere die Lage der Adern weitgehend unverändert, was sich vorteil- haft auf den Wellenwiderstand auswirkt. Die Bauhöhe der Einrichtung verringert sich außerdem um die Dicke der Trägerplatte. Die als Leiterplatte ausgebildete Träger- platte kann an den Berührungsstellen mit den Klemmstücken offene Schirm- oder Masselagen aufweisen, mit denen das Klemmstück vielfach und großflächig kontaktiert wird und die miteinander verbunden werden.This object is achieved by the invention according to claim 1. The switching cable is now located in its central axis in the plane of the carrier plate, as a result of which the average exit height of the individual wires and thus their curvature is considerably reduced. The veins can to be stretched along the circuit board so that the wave resistance is hardly changed. Particularly favorable conditions are achieved if the individual wires are distributed over both sides of the carrier plate. The use of two clamping pieces makes it possible for the cable to be clamped largely uniformly around its circumference, as a result of which it is only slightly deformed. As a result, the geometry of the cable, in particular the position of the wires, remains largely unchanged, which has an advantageous effect on the impedance. The overall height of the device is also reduced by the thickness of the carrier plate. The carrier plate designed as a printed circuit board can have open shielding or ground layers at the points of contact with the clamping pieces, with which the clamping piece is contacted in large numbers and over a large area and which are connected to one another.
Durch eine vorteilhafte Weiterbildung der Erfindung nach Anspruch 2 wird die Kabeltülle in einfacher Weise zwischen den beiden Klemmstücken gehalten. Dies wird dadurch ermög¬ licht, daß die Kabeltülle mit ihrer Ringnut zwischen die beiden Klemmstücke vor dem Montieren eingesetzt wird. Da¬ nach ist die Kabeltülle formschlüssig zwischen den Klemm¬ stücken gehalten.Through an advantageous development of the invention according to claim 2, the cable grommet is held in a simple manner between the two clamping pieces. This is made possible by inserting the cable grommet with its ring groove between the two clamping pieces before assembly. The cable grommet is then held in a form-fitting manner between the clamping pieces.
Im folgenden wird die Erfindung anhand seines in der Zeichnung dargestellten Ausführungsbeispieles näher er¬ läutert.The invention is explained in more detail below on the basis of the exemplary embodiment shown in the drawing.
Figur 1 zeigt perspektivisch eine Ansicht einer elek¬ trischen Baugruppe mit angeschlossenen Schalt¬ kabeln, Figur 2 einen Schnitt durch die Teile nach Figur 1 quer zu den Kabelenden. Nach den Figuren 1 und 2 besteht eine als Kabelstecker dienende elektrische Baugruppe aus einer Leiterplatte 1, Abdeckkappen 2 einem nicht dargestellten Steckerteil und schellenartigen Klemmstücken 3 zwischen denen die Enden zweier Schaltkabel 4 mit ihrem freigelegten Kabelschirm eingeklemmt sind. Einzelne Adern 5 des Schaltkabels 4 sind vom Kabelende aus entlang der Leiterplatte zu Anschlu߬ stellen 6 der Leiterplatte geführt. Die Klemmstücke 3 be¬ finden sich am rückseitigen Rand der Leiterplatte 1. Diese ist in diesem Bereich mit Durchbrüchen versehen, die in der Art einer Ausklinkung bis zum rückseitigen Leiterplatten¬ rand reichen. Die Schaltkabel 4 ragen in diese Durchbrüche 7 hinein. Die beiden gleichen Klemmstücke 3 überbrücken die Durchbrüche 7 und sind zu beiden Seiten der Leiterplat- te 1 angesetzt, und sind mit Massekontaktflächen der Lei¬ terplatte 1 kontaktiert, wobei die Mittelachse des Kabelen¬ des in der Mittelebene der Leiterplatte liegt. Die Adern sind auf beide Seiten der Leiterplatte 1 verteilt und in weitgehend gestrecktem Verlauf zu den Anschlußstellen 6 geführt.1 shows a perspective view of an electrical assembly with connected switching cables, FIG. 2 shows a section through the parts according to FIG. 1 transversely to the cable ends. According to FIGS. 1 and 2, an electrical assembly serving as a cable connector consists of a printed circuit board 1, cover caps 2, a plug part (not shown) and clamp-like clamping pieces 3 between which the ends of two switching cables 4 are clamped with their exposed cable shield. Individual wires 5 of the switching cable 4 are guided from the cable end along the circuit board to connection points 6 of the circuit board. The clamping pieces 3 are located on the rear edge of the printed circuit board 1. This area is provided with openings in this area which extend in the manner of a notch to the rear edge of the printed circuit board. The switching cables 4 protrude into these openings 7. The two same clamping pieces 3 bridge the openings 7 and are attached to both sides of the printed circuit board 1, and are contacted with ground contact surfaces of the printed circuit board 1, the central axis of the cable end being in the central plane of the printed circuit board. The cores are distributed on both sides of the circuit board 1 and guided to the connection points 6 in a largely elongated course.
Entlang der Rückseite der Leiterplatte 1 sind die Klemm¬ stücke mit rechtwinklig abgebogenen Schenkeln 8 versehen, die sich senkrecht zu den Kabeln 4 erstrecken. Diese Schenkel weisen in entgegensetzter Richtung und sind mit Ausnehmungen 9 zum Einsetzen von Kabeltüllen 10 versehen. Sie bilden zwischen den beiden Abdeckkappen 2 eine Ge¬ häuserückwand des Kabelsteckers. Along the back of the printed circuit board 1, the clamping pieces are provided with legs 8 bent at right angles, which extend perpendicular to the cables 4. These legs point in the opposite direction and are provided with recesses 9 for inserting cable grommets 10. They form a rear wall of the cable connector between the two cover caps 2.

Claims

Patentansprüche Claims
1. Einrichtung zum Anschließen und/oder Festlegen eines elektrischen Kabelschirms bzw. eines elektrischen Schalt- kabeis (4) an ein plattenförmiges Trägerteil (z.B. 1) mittels zumindest eines schellenartigen Klemmstücks (3), d a d u r c h g e k e n n z e i c h n e t, daß das Trägerteil (z.B. 1) im Bereich des Kabelendes einen Druchbruch (7) z.B. in der Art einer Ausklinkung aufweist, in den das Kabelende hineinragt, daß zwei gleichartige den Durchbruch überbrückende Klemm¬ stücke (3) zu beiden Seiten des Trägerteils (z.B.l) an¬ gesetzt und miteinander derart verspannt sind, daß sie zwischen sich den Kabelschirm bzw. das Schaltkabel (4) und das Trägerteil (z.B. 1) einklemmen.1. Device for connecting and / or fixing an electrical cable shield or an electrical switching cable (4) to a plate-shaped carrier part (eg 1) by means of at least one clamp-like clamping piece (3), characterized in that the carrier part (eg 1) in the area of the cable end a breakthrough (7) e.g. in the manner of a notch into which the cable end protrudes that two similar clamping pieces (3) bridging the breakthrough are attached to both sides of the carrier part (eg 1) and are clamped together in such a way that they connect the cable shield or Clamp the switch cable (4) and the carrier part (eg 1).
2. Einrichtung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Klemmstücke (3) am Außenrand des z.B. als Leiter- platte (1) ausgebildeten Trägerteils angeordnet sind, daß die Klemmstücke auf ihrer dem Kabelende abgewandten Seite im rechten Winkel abgebogene, voneinander wegweisenαe Schenkel (8) aufweisen, die Ausnehmungen (9) zum Einsetzen einer Kabeltülle (10) aufweisen. 2. Device according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the clamping pieces (3) on the outer edge of the e.g. Carrier part designed as a printed circuit board (1) are arranged in such a way that the clamping pieces on their side facing away from the cable end have legs (8) bent away from each other at right angles and having recesses (9) for inserting a cable grommet (10).
PCT/EP1993/002455 1992-09-23 1993-09-10 Arrangement for connecting an electric cable shield WO1994007280A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59301750T DE59301750D1 (en) 1992-09-23 1993-09-10 DEVICE FOR CONNECTING AN ELECTRICAL CABLE SHIELD
EP93920702A EP0662257B1 (en) 1992-09-23 1993-09-10 Arrangement for connecting an electric cable shield

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92116270.7 1992-09-23
EP92116270 1992-09-23

Publications (1)

Publication Number Publication Date
WO1994007280A1 true WO1994007280A1 (en) 1994-03-31

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ID=8210041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002455 WO1994007280A1 (en) 1992-09-23 1993-09-10 Arrangement for connecting an electric cable shield

Country Status (4)

Country Link
EP (1) EP0662257B1 (en)
AT (1) ATE134798T1 (en)
DE (1) DE59301750D1 (en)
WO (1) WO1994007280A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539552A1 (en) * 1995-10-13 1997-04-17 Wago Verwaltungs Gmbh Metallic positioning spring clip for screen of electric cable
DE19734391A1 (en) * 1996-12-13 1999-02-11 Fuba Automotive Gmbh Coaxial cable connector to circuit board
DE19615972B4 (en) * 1995-04-24 2005-05-04 The Whitaker Corp., Wilmington Kabelabschirmklemme
EP1571732A1 (en) * 2004-03-05 2005-09-07 Andrew Corporation Feedthrough and common ground for electrical cables

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741791B1 (en) * 1977-09-16 1978-07-13 Siemens Ag Termination of a shift cable shield jacket to ground
US4257658A (en) * 1979-05-07 1981-03-24 Hammond Daniel L Cable shield connector assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741791B1 (en) * 1977-09-16 1978-07-13 Siemens Ag Termination of a shift cable shield jacket to ground
US4257658A (en) * 1979-05-07 1981-03-24 Hammond Daniel L Cable shield connector assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19615972B4 (en) * 1995-04-24 2005-05-04 The Whitaker Corp., Wilmington Kabelabschirmklemme
DE19539552A1 (en) * 1995-10-13 1997-04-17 Wago Verwaltungs Gmbh Metallic positioning spring clip for screen of electric cable
DE19734391A1 (en) * 1996-12-13 1999-02-11 Fuba Automotive Gmbh Coaxial cable connector to circuit board
EP1571732A1 (en) * 2004-03-05 2005-09-07 Andrew Corporation Feedthrough and common ground for electrical cables
CN100429828C (en) * 2004-03-05 2008-10-29 安德鲁公司 Feed through and common ground for electrical cables

Also Published As

Publication number Publication date
EP0662257B1 (en) 1996-02-28
EP0662257A1 (en) 1995-07-12
DE59301750D1 (en) 1996-04-04
ATE134798T1 (en) 1996-03-15

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