EP0556560B1 - Earth conductor terminal - Google Patents

Earth conductor terminal Download PDF

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Publication number
EP0556560B1
EP0556560B1 EP93100519A EP93100519A EP0556560B1 EP 0556560 B1 EP0556560 B1 EP 0556560B1 EP 93100519 A EP93100519 A EP 93100519A EP 93100519 A EP93100519 A EP 93100519A EP 0556560 B1 EP0556560 B1 EP 0556560B1
Authority
EP
European Patent Office
Prior art keywords
terminal
carrier rail
plate
contact surfaces
conducting plate
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
EP93100519A
Other languages
German (de)
French (fr)
Other versions
EP0556560A1 (en
Inventor
Roman Bolliger
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.)
Woertz AG
Original Assignee
Woertz AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4187948&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0556560(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Woertz AG filed Critical Woertz AG
Publication of EP0556560A1 publication Critical patent/EP0556560A1/en
Application granted granted Critical
Publication of EP0556560B1 publication Critical patent/EP0556560B1/en
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
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2691—Clip-on terminal blocks for side-by-side rail- or strip-mounting with ground wire connection to the rail
    • 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
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting

Definitions

  • the present invention relates to a protective conductor terminal, which can be snap-fitted onto or removed from a mounting rail, preferably designed as a protective conductor busbar, with a terminal body made of non-conductive material and terminals integrated therein, which are connected to an electrically conductive plate, which in turn is connected is connectable to the mounting rail, the plate in conductive connection with the terminals being pulled down to the base of the terminal body and angled at the lower end in some areas to form contact surfaces which are intended to bear against the mounting rail and that spring means are provided in the terminal body are to press the terminal with the contact surfaces of the conductive plate against the mounting rail.
  • Tightening or loosening these contact screws does not, of course, correspond to the purpose of snap fastening and thus complicates the quick and uncomplicated mounting of the protective conductor terminals on the mounting rail.
  • the object of the present invention is to design a protective conductor terminal so that it also ensures a reliable electrical connection between the protective conductor terminal and the mounting rail by simply snapping onto a mounting rail.
  • the clamp according to the invention is characterized in that the spring means consist of a single, substantially U-shaped clamp-like bracket which, with its connecting web, passes above the angled end regions of the conductive plate and bears against it, while the resilient projecting downwards Legs are slightly bent inwards, to engage under the contact surfaces of the mounting rail from the side when the clamp is placed on the mounting rail, on the back of the angled end regions of the conductive plate, preferably elevations formed from the plate material are provided, against which the connecting web of the bracket abuts and can thus extend freely between the ridges formed and thus supports the clamping action of the spring.
  • the end of at least one of the resilient stirrup legs can have an outwardly projecting extension, which makes it easier to release the snap closure.
  • This leg extension can have an opening for attaching an actuating lever (tool, eg screwdriver).
  • the invention thus relates to a spring-loaded protective conductor terminal with screwless snap-on device for attaching it to a mounting rail.
  • the protective conductor terminal 1 shown in the drawing is intended to be snapped onto a mounting rail 2 (protective conductor busbar).
  • a bow-shaped spring 3 is provided on the foot part of the terminal body 4 consisting of non-conductive material, which engages under the side flanges 5, 6 of the mounting rail 2 and thus presses the protective conductor terminal 1 against the mounting rail 2.
  • the spring 3 leads behind the right-angled foot part 7 of an electrically conductive plate 8 which is guided downward and on which, in the example shown, two clamps 9, 10 integrated therein (screwless clamps in the exemplary embodiment shown, which are depressed in the middle of the clamp body 4) can be brought into a position by means of a tool which can be inserted through the openings 11, 12 and which allows the insertion of conductors to be clamped through the lateral openings 13, 14, the conductors being automatically clamped in the terminals after the tool has been withdrawn; if the connection is to be released, the clamps are again pressed down using the tool) (conductive contact).
  • One spring leg 3 has an outwardly projecting extension 17, which allows the snap connection to be released in the simplest way and the protective conductor terminal 1 to be removed from the mounting rail 2.
  • the spring extension 17 is provided with an opening 18 which allows the insertion of a lever (e.g. screwdriver) in order to easily release the spring (by lifting).
  • a lever e.g. screwdriver

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Description

Die vorliegende Erfindung betrifft eine Schutzleiterklemme, welche schnappverschlussartig auf eine vorzugsweise als Schutzleiter-Sammelschiene ausgebildete Tragschiene aufsetzbar bzw. von dieser wieder abnehmbar ist, mit einem Klemmenkörper aus nichtleitendem Material und darin integrierten Klemmen, welche mit einer elektrisch leitenden Platte in Verbindung stehen, die ihrerseits mit der Tragschiene verbindbar ist, wobei die mit den Klemmen in leitender Verbindung stehende Platte nach unten zum Fuss des Klemmenkörpers gezogen und am unteren Ende bereichsweise abgewinkelt ist, um Kontaktflächen zu bilden, welche zum Anliegen an die Tragschiene bestimmt sind und dass im Klemmenkörper Federmittel vorgesehen sind, um die Klemme mit den Kontaktflächen der leitenden Platte gegen die Tragschiene anzudrücken.The present invention relates to a protective conductor terminal, which can be snap-fitted onto or removed from a mounting rail, preferably designed as a protective conductor busbar, with a terminal body made of non-conductive material and terminals integrated therein, which are connected to an electrically conductive plate, which in turn is connected is connectable to the mounting rail, the plate in conductive connection with the terminals being pulled down to the base of the terminal body and angled at the lower end in some areas to form contact surfaces which are intended to bear against the mounting rail and that spring means are provided in the terminal body are to press the terminal with the contact surfaces of the conductive plate against the mounting rail.

Bei bekannten Schutzleiterklemmen dieser Art, welche auf eine Schutzleiter-Sammelschiene aufschnappbar sind, bildet ein guter elektrischer Übergangskontakt von Schutzleiterklemme auf die Tragschiene die Voraussetzung für eine zuverlässige Verbindung. Wegen der hohen Kurzschluss-Prüfströme wurde die Verbindung bis anhin in der Regel mittels Schrauben bewerkstelligt (siehe Z.B. GB-A-2619 117).In known protective conductor terminals of this type, which can be snapped onto a protective conductor busbar, good electrical contact between the protective conductor terminal and the mounting rail forms the prerequisite for a reliable connection. Due to the high short-circuit test currents, the connection has so far generally been made using screws (see e.g. GB-A-2619 117).

Das Anziehen bzw. Lösen dieser Kontaktschrauben entspricht selbstredend nicht dem Sinn einer Schnapp-Befestigung und erschwert damit das schnelle unkomplizierte Aufsetzen der Schutzleiterklemmen auf die Tragschiene.Tightening or loosening these contact screws does not, of course, correspond to the purpose of snap fastening and thus complicates the quick and uncomplicated mounting of the protective conductor terminals on the mounting rail.

Aus DE-A-1 590 344 ist eine Klemme bekannt, welche durch von zwei Seiten anzubringende Klammern auf der Schiene zu befestigen ist. Durch die Verwendung von vom Klemmenkörper getrennte, einzeln anbringbare Klammern ist die Montage aufwendig und zudem unzuverlässig.From DE-A-1 590 344 a clamp is known which is to be fastened to the rail by clips to be attached from two sides. Due to the use of clips that can be attached separately from the terminal body, the assembly is complex and also unreliable.

Aufgabe der vorliegenden Erfindung ist es, eine Schutzleiterklemme so auszubilden, dass sie durch einfaches Aufschnappen auf eine Tragschiene auch eine zuverlässige elektrische Verbindung zwischen Schutzleiterklemme und Tragschiene gewährleistet.The object of the present invention is to design a protective conductor terminal so that it also ensures a reliable electrical connection between the protective conductor terminal and the mounting rail by simply snapping onto a mounting rail.

Zur Lösung dieser Aufgabe zeichnet sich die erfindungsgemässe Klemme dadurch aus, dass die Federmittel aus einem einzigen im wesentlichen U-förmigen klammerartigen Bügel bestehen, welcher mit seinem Verbindungssteg oberhalb der abgewinkelten Endbereiche der leitenden Platte durchführt und gegen diese anliegt, während die federnden nach unten ragenden Schenkel leicht nach einwärts gebogen sind, um bei auf die Tragschiene aufgesetzter Klemme die Kontaktflächen der Tragschiene von der Seite her zu untergreifen, wobei auf der Rückseite der abgewinkelten Endbereiche der leitenden Platte vorzugsweise aus dem Plattenmaterial gebildete Erhöhungen vorgesehen sind, gegen welche der Verbindungssteg des Bügels anliegt und sich somit zwischen den gebildeten Erhöhungen frei erstrecken kann und damit die Klemmwirkung der Feder unterstützt.To solve this problem, the clamp according to the invention is characterized in that the spring means consist of a single, substantially U-shaped clamp-like bracket which, with its connecting web, passes above the angled end regions of the conductive plate and bears against it, while the resilient projecting downwards Legs are slightly bent inwards, to engage under the contact surfaces of the mounting rail from the side when the clamp is placed on the mounting rail, on the back of the angled end regions of the conductive plate, preferably elevations formed from the plate material are provided, against which the connecting web of the bracket abuts and can thus extend freely between the ridges formed and thus supports the clamping action of the spring.

Bei einer solchen Ausführungsform kann das Ende mindestens eines der federnden Bügelschenkel einen nach aussen ragenden Fortsatz aufweisen, welcher das Lösen des Schnappverschlusses erleichtert. Dieser Schenkelfortsatz kann eine Öffnung zum Ansetzen eines Betätigungshebels (Werkzeug, z.B. Schraubenzieher) aufweisen.In such an embodiment, the end of at least one of the resilient stirrup legs can have an outwardly projecting extension, which makes it easier to release the snap closure. This leg extension can have an opening for attaching an actuating lever (tool, eg screwdriver).

Die Erfindung betrifft somit eine Federdruck-Schutzleiterklemme mit schraubenloser Aufschnapp-Vorrichtung zu deren Anbringen auf einer Tragschiene.The invention thus relates to a spring-loaded protective conductor terminal with screwless snap-on device for attaching it to a mounting rail.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels noch etwas näher erläutert. Es zeigen:

  • Fig. 1 eine Stirnansicht auf eine Schutzleiterklemme nach der Erfindung, teilweise aufgeschnitten;
  • Fig. 2 eine Seitenansicht von links auf die Schutzleiterklemme nach Fig. 1, ebenfalls teilweise aufgeschnitten, und
  • Fig. 3 eine Ansicht von oben auf die Schutzleiterklemme nach Fig. 1, teilweise aufgeschnitten.
The invention is explained in more detail below with reference to an embodiment shown in the drawing. Show it:
  • Figure 1 is an end view of a protective conductor terminal according to the invention, partially cut away.
  • Fig. 2 is a left side view of the protective conductor terminal of FIG. 1, also partially cut away, and
  • Fig. 3 is a top view of the protective conductor terminal of FIG. 1, partially cut away.

Die in der Zeichnung dargestellte Schutzleiterklemme 1 ist dazu vorgesehen, auf eine Tragschiene 2 (Schutzleiter-Sammelschiene) aufgeschnappt zu werden. Zu diesem Zweck ist eine bügelförmige Feder 3 am Fussteil des aus nichtleitendem Material bestehenden Klemmenkörpers 4 vorgesehen, welcher die Seitenflanschen 5,6 der Tragschiene 2 untergreift und damit die Schutzleiterklemme 1 an die Tragschiene 2 andrückt.The protective conductor terminal 1 shown in the drawing is intended to be snapped onto a mounting rail 2 (protective conductor busbar). For this purpose, a bow-shaped spring 3 is provided on the foot part of the terminal body 4 consisting of non-conductive material, which engages under the side flanges 5, 6 of the mounting rail 2 and thus presses the protective conductor terminal 1 against the mounting rail 2.

Die Feder 3 führt hinter dem rechtwinklig abgewinkelten Fussteil 7 einer nach unten geführten elektrisch leitenden Platte 8 durch, an welcher im mittleren Bereich des Klemmenkörpers 4 beim gezeigten Beispiel zwei darin integrierte Klemmen 9,10 (beim gezeigten Ausführungsbeispiel schraubenlose Klemmen, welche durch Niederdrücken mittels eines durch die Öffnungen 11,12 einführbaren Werkzeuges in eine Stellung gebracht werden können, welche das Einführen von festzuklemmenden Leitern durch die seitlichen Öffnungen 13,14 erlaubt, wobei nach dem Rückzug des Werkzeuges die Leiter selbsttätig in den Klemmen festgeklemmt werden; zum eventuellen Lösen der Verbindung werden wiederum die Klemmen mittels des Werkzeuges niedergedrückt) angebracht sind (leitender Kontakt).The spring 3 leads behind the right-angled foot part 7 of an electrically conductive plate 8 which is guided downward and on which, in the example shown, two clamps 9, 10 integrated therein (screwless clamps in the exemplary embodiment shown, which are depressed in the middle of the clamp body 4) can be brought into a position by means of a tool which can be inserted through the openings 11, 12 and which allows the insertion of conductors to be clamped through the lateral openings 13, 14, the conductors being automatically clamped in the terminals after the tool has been withdrawn; if the connection is to be released, the clamps are again pressed down using the tool) (conductive contact).

Dank der Feder 3, welche auf der Rückseite des abgewinkelten Fussteils 7 der Platte 8 anliegt, wird bei auf die Tragschiene 2 aufgeschnappter Schutzleiterklemme 1 diese mit ausgezeichnetem Übergangskontakt auf die Tragschiene 2 gedrückt.Thanks to the spring 3, which rests on the back of the angled foot part 7 of the plate 8, when the protective conductor terminal 1 is snapped onto the mounting rail 2, it is pressed onto the mounting rail 2 with excellent transition contact.

Um das Anliegen des Verbindungssteges 3' der Feder 3 an den Fussteil 7 der Platte 8 sicherzustellen, sind Teile dieses Fussteils 7 nach oben ausgebuchtet bzw. weisen nach oben abstehende Erhöhungen 15,16 auf, gegen welche die Feder sicher anzuliegen kommt und sich dazwischen frei erstrecken kann.In order to ensure that the connecting web 3 'of the spring 3 bears against the foot part 7 of the plate 8, parts of this foot part 7 are bulged upwards or have protrusions 15, 16 which protrude upwards, against which the spring comes to rest securely and between them freely can extend.

Der eine Federschenkel 3 weist einen nach aussen ragenden Fortsatz 17 auf, welcher erlaubt, die Schappverbindung auf einfachste Weise zu lösen und die Schutzleiterklemme 1 von der Tragschiene 2 abzunehmen.One spring leg 3 has an outwardly projecting extension 17, which allows the snap connection to be released in the simplest way and the protective conductor terminal 1 to be removed from the mounting rail 2.

Der Federfortsatz 17 ist mit einer Öffnung 18 versehen, welche das Einführen eines Hebels (z.B. Schraubenzieher) erlaubt, um die Feder einfach zu lösen (durch Anheben).The spring extension 17 is provided with an opening 18 which allows the insertion of a lever (e.g. screwdriver) in order to easily release the spring (by lifting).

Claims (3)

  1. Earth conductor terminal mountable in the manner of a snap closure on a carrier rail (2) formed preferably as an earth terminal bus rail and removable again therefrom, with a terminal body (1) made of a non-conducting material and terminals (9, 10) integrated therein and connected with an electrically conducting plate (8) which in its turn is connectable with the carrier rail (2), wherein the plate (8) in electrically conducting connection with the terminals (9, 10) is drawn downwardly to the foot of the terminal body (1) and is angled at the lower end zonally in order to form contact surfaces destined to bear against the carrier rail (2), and spring means (3) provided at the terminal body (1) to press the terminal with the contact surfaces (7) of the conducting plate (8) against the carrier rail (2), characterised in that the spring means consists of a single, essentially U-shaped bracket-like stirrup (3) which with its connecting web (3') passes above the angled end region (7) through the conducting plate (8) and bears against the latter while its resilient downwardly projecting shanks (3) are bent slightly inwardly in order to engage below the contact surfaces of the carrier rail (2) from the side when the terminal is set on the carrier rail, wherein raised projections (15, 16) made preferably from the material of the plate are provided on the rear side of the angled end region (7) of the conducting plate (8), the connecting web (3') of the stirrup (3) bearing against these raised projections and thus being able to extend freely between the raised projections (15, 16) formed and thus supporting the clamping effect of the spring.
  2. A terminal according to claim 1, characterised in that the end of at least one of the resilient stirrup shanks (3) has an outwardly projecting extension (17) for facilitating the release of the snap closure.
  3. A terminal according to claim 2, characterised in that an opening (18) is provided in the outwardly projecting shank extension (17) for the application of an actuating lever.
EP93100519A 1992-02-18 1993-01-15 Earth conductor terminal Expired - Lifetime EP0556560B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH479/92A CH683047A5 (en) 1992-02-18 1992-02-18 Protective conductor terminal.
CH479/92 1992-02-18

Publications (2)

Publication Number Publication Date
EP0556560A1 EP0556560A1 (en) 1993-08-25
EP0556560B1 true EP0556560B1 (en) 1996-03-27

Family

ID=4187948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100519A Expired - Lifetime EP0556560B1 (en) 1992-02-18 1993-01-15 Earth conductor terminal

Country Status (4)

Country Link
US (1) US5362259A (en)
EP (1) EP0556560B1 (en)
CH (1) CH683047A5 (en)
DE (1) DE59302001D1 (en)

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DE19631436C1 (en) * 1996-08-03 1997-10-09 Weidmueller Interface Earthing conductor connection esp for terminal block

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US5704805A (en) * 1995-03-31 1998-01-06 The Whitaker Corporation Connector for connection to a rail
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DE19818704C1 (en) * 1998-04-19 1999-11-04 Wago Verwaltungs Gmbh Mounting foot with protective conductor function for electrical connector block
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FR2803440B1 (en) * 2000-01-04 2002-08-16 Entrelec Sa SPRING FOR FIXING A TERMINAL BLOCK OR THE LIKE ON A RAIL
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FR2835358B1 (en) * 2002-01-25 2004-09-10 Schneider Automation ELECTRICAL APPARATUS FOR FIXING ON A CAP PROFILE
FR2913536B1 (en) * 2007-03-09 2009-08-28 Abb France JUNCTION BLOCK FOR FIXING ON A SUPPORT RAIL
TWM335848U (en) * 2008-01-04 2008-07-01 Switchlab Inc Improved structure of tracked ground terminal
TW200931732A (en) 2008-01-04 2009-07-16 Switchlab Inc Improvement of rail-type grounding terminal structure
US8011951B2 (en) * 2009-06-23 2011-09-06 General Electric Company Rail mounting apparatus
CN103004029A (en) * 2010-07-15 2013-03-27 凌立声 Electrical power distribution track system
DE102013112115A1 (en) * 2013-11-04 2015-05-07 Phoenix Contact Gmbh & Co. Kg Bridge module for a component assembly system
DE102013114315A1 (en) * 2013-12-18 2015-06-18 Phoenix Contact Gmbh & Co. Kg Metallic protective conductor connection element and electrical terminal block
DE102014115048A1 (en) * 2014-10-16 2016-04-21 Phoenix Contact Gmbh & Co. Kg Terminal device with a busbar
TWM502983U (en) 2014-12-04 2015-06-11 Switchlab Inc Conductive wiring structure of track type electrical connection terminal
US9485879B2 (en) * 2015-03-06 2016-11-01 Rockwell Automation Technologies, Inc. Single action DIN rail latch
DE202015008280U1 (en) 2015-12-01 2015-12-14 Switchlab (Shanghai) Co., Ltd. Improved construction of an electrical connection terminal with path
TWM549469U (en) 2017-05-16 2017-09-21 Switchlab Inc Wire insertion auxiliary sleeve structure used for wire terminals
TWI659581B (en) * 2018-03-16 2019-05-11 進聯工業股份有限公司 Conductive component structure of wire coupling device
TWI717908B (en) * 2019-11-20 2021-02-01 進聯工業股份有限公司 Conductive component structure for track type terminal device
CN116207572A (en) 2021-11-30 2023-06-02 进联电子科技(上海)有限公司 Improved structure of conductive component of track terminal device

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Also Published As

Publication number Publication date
EP0556560A1 (en) 1993-08-25
DE59302001D1 (en) 1996-05-02
US5362259A (en) 1994-11-08
CH683047A5 (en) 1993-12-31

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