EP1251590A2 - Electrical terminal - Google Patents

Electrical terminal Download PDF

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Publication number
EP1251590A2
EP1251590A2 EP02005615A EP02005615A EP1251590A2 EP 1251590 A2 EP1251590 A2 EP 1251590A2 EP 02005615 A EP02005615 A EP 02005615A EP 02005615 A EP02005615 A EP 02005615A EP 1251590 A2 EP1251590 A2 EP 1251590A2
Authority
EP
European Patent Office
Prior art keywords
opening
test plug
terminal
electrical
conductor
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
EP02005615A
Other languages
German (de)
French (fr)
Other versions
EP1251590B1 (en
EP1251590A3 (en
Inventor
Jürgen Brand
Oliver Lange
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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Filing date
Publication date
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Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP1251590A2 publication Critical patent/EP1251590A2/en
Publication of EP1251590A3 publication Critical patent/EP1251590A3/en
Application granted granted Critical
Publication of EP1251590B1 publication Critical patent/EP1251590B1/en
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4811—Spring details
    • H01R4/4816—Spring details the spring shape preventing insertion of the conductor end when the spring is unbiased
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/912—Electrical connectors with testing means

Definitions

  • the invention relates to an electrical terminal, in particular a terminal block, with a terminal housing, with at least one arranged therein Conductor connection element, in particular a tension spring clamp and with at least one current bar, the terminal housing at least one Conductor insertion opening for inserting an electrical to be connected Conductor, at least one actuating opening for inserting an actuating tool to open the tension spring clamp and at least one test plug opening for inserting a test plug.
  • Terminal After removing the operating tool the conductor is counteracted by the spring force of the tension spring pulled the current bar. Now around the conductor or the tip of the actuating tool Being able to insert it into the electrical terminal shows that Terminal housing a conductor insertion opening and an actuation opening on.
  • Electrical terminals are usually connecting terminals, so they Have at least two conductor connection elements that are electrically connected conductive connecting rail, the current bar, electrically connected to each other are.
  • this basic type of terminal block there is more also a variety of different terminal block types that are special are adapted to the respective applications. As an example here or three-level terminals as well as three-wire or four-wire terminals called, which then each have a correspondingly larger number of conductor connection elements exhibit.
  • terminal blocks that are made of a basic terminal and a connector, the basic terminal a terminal housing, at least one conductor connection element arranged therein and at least one with the conductor connection element has electrically connected slot.
  • the connector also points at least one conductor connection element and one with the conductor connection element electrically connected plug contact.
  • the base clamp is usually snapped onto a mounting rail and can the connector by means of its plug contact on a corresponding extension of the base clamp.
  • test plug opening for inserting a corresponding one Test plug is formed.
  • the test plug opening enables one contacting the electrically conductive components, d. H. of the conductor connection element or the current bar inside the terminal box the test plug, also serves to guide and securely fix the Test plug.
  • test tap enables, on the other hand, only has a very small size.
  • test plug opening laterally is arranged offset to the central plane at the actuation opening.
  • the conductor insertion opening, the actuation opening and the test plug opening each symmetrical to the central plane, d. H. in the Arranged in the middle of the electrical terminal.
  • the test plug opening is located there centered between the conductor insertion opening and the actuation opening. Due to the lateral arrangement of the test plug opening, whereby this preferably between the conductor insertion opening and the actuation opening is arranged, is compared to an electrical terminal shortened design to the state of the art.
  • electrical terminal designed so that the actuating opening and the test plug opening merge.
  • the one opening being the conductor insertion opening
  • the part of the second opening forms the actuating opening
  • the other Part of the second opening serves as a test plug opening. This will make the The length of the electrical terminal is further shortened and the second is also used Opening in the terminal housing optimally used.
  • the individual terminal blocks 1 each show three different electrical terminal blocks 1, which are plugged together to form a terminal block 2.
  • the individual terminal blocks 1 have a terminal housing 3, in each of which a tension spring terminal 4 and a current bar 5 are arranged.
  • the tension spring clamp 4 is used for electrical contacting of an electrical, not shown here Conductor by the electrical conductor through the tension spring 4 against the Current bar 5 is pulled.
  • each electrical terminal block 1 has a conductor insertion opening 6, an actuation opening 7 and a test plug opening 8 on.
  • An actuating tool for example, in the actuating opening 7 inserted the tip of a screwdriver, so it pushes Tip of the screwdriver between a housing wall 9 and the back 10 of the tension spring clamp 4, whereby one in the clamping leg 11 of the tension spring clamp 4 formed recess under the conductor insertion opening 6 is pushed so that a conductor to be connected through the conductor insertion opening 6 inserted into the recess of the tension spring clamp 4 can be. If the operating tool comes out of the operating opening 7 pulled out, the spring clip 4 springs back, which in the Recess inserted conductor is pulled against the current bar 5. The electrical conductor is electrically connected to terminal block 1.
  • the test plug opening 8 is on the side offset to the center plane M at the actuation opening 7.
  • the Actuating opening 7 and the test plug opening 8 can be through a thin Wall 12 must be separated from one another, as is the case with the middle terminal block 1 in Fig. 2 is the case.
  • the actuation opening 7 preferably goes into the Test plug opening 8 over.
  • the conductor insertion opening 6 has a substantially round cross section, can be by the side to Middle plane M offset arrangement of the test plug opening 8 the conductor insertion opening 6 and the actuating opening 7 arranged closer to each other his.
  • test plug opening 8 can correspond to the design of the test plug 13 can be selected. Has the test plug 13 only one relatively thin cylindrical pin, so the test connector opening 8 as a bore with a small diameter can be formed, as in the lower terminal block 1 in Fig. 2 is the case. In contrast, becomes a test plug 3 used with a multi-core contact pin 14, the contact pin 14 then has an approximately square cross section the test connector opening 8 is also approximately square.
  • the width of the transition is 15 between the actuation opening 7 and the test plug opening 8 smaller than the diameter or the width of the test plug 13 or the contact pin 14.
  • the transition 15 between the actuation opening 7 and the test plug opening 8 is delimited by protrusions 16 which extend into the actuation opening 7 protrude. This ensures, on the one hand, that the test plug 13 is guided by this when plugging into the test plug opening 8 on the other hand prevents the test plug 13 from entering the actuation opening 7 can slide over.
  • the tension spring terminal 4 in the terminal housing 3 becomes an operating tool when inserted into the actuation opening 7 against that of the conductor insertion opening 6 pressed away edge of the actuation opening 7.
  • Fig. 5 shows an embodiment of an electrical terminal block 1, which a basic terminal 17 and a connector 18.
  • the basic clamp 17 can be snapped onto a mounting rail, not shown here be what in the foot 19 of the base terminal 17 corresponding locking elements 20 are formed.
  • the connection of the basic terminal 17 with the connector 18 takes place via a trained in the base terminal 17 Connector pin 21 and a connector socket formed in the connector 18 22, which is connected in one piece to the current bar 5.
  • the two spring terminals 4 for Connecting two electrical conductors can also those in Fig. 1st to 4 electrical terminal blocks 1 shown with their sockets 22 are plugged onto the plug pin 21 of the basic terminal 17.
  • a coding element 23 is arranged, wherein the coding element 23 via thin connecting webs 24, which act as predetermined breaking points are formed, is connected to the terminal housing 3.
  • the coding element 23 can be easily separated from the terminal housing 3 by hand and inserted into an opening 25 formed in the base clamp 17 become.
  • the base clamp 17 can thus be simple be coded, which ensures that only the "correct" connector 18 is connected to the base terminal 17.
  • a plurality of locking elements 26 are formed, which serve the individual electrical terminal blocks 1 to connect.
  • the individual terminal housing 3 with the aid of the locking elements 26 and corresponding Snap recesses put together. 1 to 3 can about it also be seen that the terminal housing 3 another Has opening 27 into which a bridge or a shorting plug electrical shorting of two or more adjacent electrical Terminal blocks 1 can be inserted.
  • the 6a is the arrangement of conductor insertion opening 6, actuation opening 7 and test plug opening 8 in one from the prior art Technically known terminal block 1 shown.
  • the test plug opening 8 is centered between the conductor insertion opening 6 and the actuation opening 7 and also like the conductor insertion opening 6 and the actuation opening 7 arranged symmetrically to the central plane M. Contrast with the presentation 6b according to the invention the test plug opening 8 laterally offset to Center plane M arranged at the actuation opening 7.
  • the presentation 6b shows the actuation opening in addition to the conductor insertion opening 6 7 designed as a circular opening.
  • FIGS. 6c to 6e of conductor insertion opening 6, actuation opening 7 and test plug connector opening 8 differ from the arrangement according to FIG. 6b characterized in that the actuating opening 7 and the test plug opening 8 into one another pass.
  • the quasi "overlap" of actuation opening 7 and test plug opening 8 is by the dashed representation of the nonexistent Edge of the actuation opening 7 and the test connector opening 8 indicated.
  • the actuation opening 7 and the test plug opening 8 each have a round cross section, are the actuation opening 7 and the test plug opening 8 during training 6d square.
  • the shape and size of the test plug opening 8 depends on the shape and size of the used Test plug 13.
  • a terminal block 1 with Such a configuration thus offers the possibility of different Test plug 13 in one of the two test plug openings, depending on its cross section 8 to insert.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

A test prod opening (8) is offset to the side of the central plane of the operating opening (7) which is used to operate the terminal clip. The corner of the rectangular operating opening is formed as the test prod opening.

Description

Die Erfindung betrifft eine elektrische Klemme, insbesondere eine Reihenklemme, mit einem Klemmengehäuse, mit mindestens einem darin angeordneten Leiteranschlußelement, insbesondere einer Zugfederklemme und mit mindestens einem Strombalken, wobei das Klemmengehäuse mindestens eine Leitereinführungsöffnung zum Einführen eines anzuschließenden elektrischen Leiters, mindestens eine Betätigungsöffnung zum Einführen eines Betätigungswerkzeugs zum Öffnen der Zugfederklemme und mindestens eine Prüfsteckeröffnung zum Einstecken eines Prüfsteckers aufweist.The invention relates to an electrical terminal, in particular a terminal block, with a terminal housing, with at least one arranged therein Conductor connection element, in particular a tension spring clamp and with at least one current bar, the terminal housing at least one Conductor insertion opening for inserting an electrical to be connected Conductor, at least one actuating opening for inserting an actuating tool to open the tension spring clamp and at least one test plug opening for inserting a test plug.

Elektrische Klemmen, insbesondere Reihenklemmen sind seit Jahrzehnten bekannt und werden millionenfach bei der Verdrahtung elektrischer Anlagen und Geräte verwendet. Die Klemmen werden meist auf Tragschienen aufgerastet, welche ihrerseits häufig in einer Mehrzahl in einem Schaltschrank angeordnet sind. Als Leiteranschlußelemente werden in Reihenklemmen überwiegend Schraubklemmen oder Zugfederklemmen verwendet. Das Klemmprinzip bei Zugfederklemmen ist ähnlich dem der Schraubtechnik. Während bei der Schraubklemme eine Zughülse durch die Betätigung der Klemmenschraube den Leiter gegen den Strombalken zieht, wird bei der Zugfederklemme diese Aufgabe von der Zugfeder übernommen. Hierzu wird die vorgespannte Zugfeder mit einem Betätigungswerkzeug, beispielsweise einem Schraubendreher geöffnet, so daß der Leiter durch ein Fenster im Federschenkel der Zugfeder in den Anschlußraum eingeführt werden kann. Nach dem Entfernen des Betätigungswerkzeuges wird der Leiter durch die Federkraft der Zugfeder gegen den Strombalken gezogen. Um nun den Leiter bzw. die Spitze des Betätigungswerkzeuges in die elektrische Klemme einführen zu können, weist das Klemmengehäuse eine Leitereinführungsöffnung und eine Betätigungsöffnung auf.Electrical terminals, especially terminal blocks, have been around for decades known and become millions of times in the wiring of electrical systems and equipment used. The clamps are usually snapped onto mounting rails, which in turn are often arranged in a plurality in a control cabinet are. The most common conductor connection elements in terminal blocks Screw terminals or tension spring terminals are used. The clamping principle tension spring terminals is similar to that of screw technology. While at the Screw clamp a pull sleeve by operating the clamp screw pulls the conductor against the current bar, the tension spring clamp becomes this Task taken over by the mainspring. For this, the pre-tensioned tension spring with an operating tool, for example a screwdriver opened so that the conductor through a window in the spring leg of the tension spring can be inserted into the terminal compartment. After removing the operating tool the conductor is counteracted by the spring force of the tension spring pulled the current bar. Now around the conductor or the tip of the actuating tool Being able to insert it into the electrical terminal shows that Terminal housing a conductor insertion opening and an actuation opening on.

Elektrische Klemmen sind in der Regel Verbindungsklemmen, so daß sie mindestens zwei Leiteranschlußelemente aufweisen, die über eine elektrisch leitende Verbindungsschiene, den Strombalken, elektrisch miteinander verbunden sind. Neben diesem Grundtyp der Reihenklemmen gibt es darüber hinaus eine Vielzahl von unterschiedlichen Reihenklemmentypen, die speziell den jeweiligen Anwendungsfällen angepaßt sind. Als Beispiel seien hier Doppelstock- oder Dreistock-Klemmen sowie Dreileiter- oder Vierleiter-Klemmen genannt, die dann jeweils eine entsprechend größere Anzahl an Leiteranschlußelementen aufweisen. Darüber hinaus gibt es Reihenklemmen, die aus einer Grundklemme und einem Anschlußstecker bestehen, wobei die Grundklemme ein Klemmengehäuse, mindestens ein darin angeordnetes Leiteranschlußelement und mindestens einen mit dem Leiteranschlußelement elektrisch verbundenen Steckplatz aufweist. Der Anschlußstecker weist ebenfalls mindestens ein Leiteranschlußelement und ein mit dem Leiteranschlußelement elektrisch verbundenen Steckkontakt auf. Bei diesem Typ von Reihenklemme wird die Grundklemme in der Regel auf einer Tragschiene aufgerastet und kann der Anschlußstecker mittels seines Steckkontakts auf einen korrespondierenden Streckplatz der Grundklemme aufgesteckt werden.Electrical terminals are usually connecting terminals, so they Have at least two conductor connection elements that are electrically connected conductive connecting rail, the current bar, electrically connected to each other are. In addition to this basic type of terminal block, there is more also a variety of different terminal block types that are special are adapted to the respective applications. As an example here or three-level terminals as well as three-wire or four-wire terminals called, which then each have a correspondingly larger number of conductor connection elements exhibit. There are also terminal blocks that are made of a basic terminal and a connector, the basic terminal a terminal housing, at least one conductor connection element arranged therein and at least one with the conductor connection element has electrically connected slot. The connector also points at least one conductor connection element and one with the conductor connection element electrically connected plug contact. With this type of terminal block the base clamp is usually snapped onto a mounting rail and can the connector by means of its plug contact on a corresponding extension of the base clamp.

Um vor der Inbetriebnahme einer Anlage die richtige Verdrahtung überprüfen zu können, oder um bei Störfällen möglichst einfach eine falsche Verdrahtung feststellen zu können, gibt es elektrische Klemmen, bei denen im Klemmengehäuse zusätzlich eine Prüfsteckeröffnung zum Einstecken eines entsprechenden Prüfsteckers ausgebildet ist. Die Prüfsteckeröffnung ermöglicht zum einen das Kontaktieren der elektrisch leitenden Bauteile, d. h. des Leiteranschlußelements oder des Strombalkens im Inneren des Klemmengehäuses mit dem Prüfstecker, dient zum anderen der Führung und sicheren Fixierung des Prüfsteckers.To check the correct wiring before starting up a system to be able to, or in the event of malfunctions, the wrong wiring To be able to determine, there are electrical terminals in the terminal housing additionally a test plug opening for inserting a corresponding one Test plug is formed. The test plug opening enables one contacting the electrically conductive components, d. H. of the conductor connection element or the current bar inside the terminal box the test plug, also serves to guide and securely fix the Test plug.

Mit der insgesamt zunehmenden Miniaturisierung von elektrischen Geräten und elektrischen Anlagen wird auch eine zunehmende Verkleinerung der Schaltschränke gewünscht. Da darüber hinaus immer mehr elektrische Geräte und Anlagen miteinander verdrahtet werden müssen, wird der zur Verfügung stehende Platz für die elektrischen Klemmen im Schaltschrank zusätzlich verringert. Daher besteht ein zunehmendes Bedürfnis nach sogenannten "Mini-Reihenklemmen", die eine extrem kompakte Bauweise aufweisen, d. h. nur eine sehr geringe Breite und kleine Länge aufweisen.With the overall increasing miniaturization of electrical devices and electrical equipment will also be an increasing downsizing Control cabinets required. In addition, more and more electrical devices and systems must be wired together, the will be available standing space for the electrical terminals in the control cabinet is also reduced. Therefore, there is an increasing need for so-called "mini terminal blocks", which have an extremely compact design, d. H. just have a very small width and a small length.

Der Erfindung liegt daher die Aufgabe zugrunde, eine eingangs beschriebene elektrische Klemme zur Verfügung zu stellen, die einerseits einen Prüfabgriff ermöglicht, andererseits nur eine sehr geringe Baugröße aufweist. The invention is therefore based on the object, an initially described To provide electrical terminal, on the one hand, a test tap enables, on the other hand, only has a very small size.

Diese Aufgabe ist bei der eingangs beschriebenen elektrischen Klemme zunächst und im wesentlichen dadurch gelöst, daß die Prüfsteckeröffnung seitlich versetzt zur Mittelebene an der Betätigungsöffnung angeordnet ist. Im Stand der Technik sind die Leitereinführungsöffnung, die Betätigungsöffnung und die Prüfsteckeröffnung jeweils symmetrisch zur Mittelebene, d. h. in der Mitte der elektrischen Klemme angeordnet. Dabei befindet sich die Prüfstekkeröffnung mittig zwischen der Leitereinführungsöffnung und der Betätigungsöffnung. Durch die seitliche Anordnung der Prüfsteckeröffnung, wobei diese vorzugsweise zwischen der Leitereinführungsöffnung und der Betätigungsöffnung angeordnet ist, ist eine elektrische Klemme mit im Vergleich zum Stand der Technik verkürzter Bauform realisierbar.This task is first with the electrical terminal described above and essentially solved in that the test plug opening laterally is arranged offset to the central plane at the actuation opening. in the State of the art are the conductor insertion opening, the actuation opening and the test plug opening each symmetrical to the central plane, d. H. in the Arranged in the middle of the electrical terminal. The test plug opening is located there centered between the conductor insertion opening and the actuation opening. Due to the lateral arrangement of the test plug opening, whereby this preferably between the conductor insertion opening and the actuation opening is arranged, is compared to an electrical terminal shortened design to the state of the art.

Gemäß einer besonders vorteilhaften Ausgestaltung der Erfindung ist die elektrische Klemme so ausgebildet, daß die Betätigungsöffnung und die Prüfsteckeröffnung ineinander übergehen. Insgesamt sind dann nur zwei Öffnungen vorgesehen, wobei die eine Öffnung die Leitereinführungsöffnung ist, der eine Teile der zweiten Öffnung die Betätigungsöffnung bildet und der andere Teil der zweiten Öffnung als Prüfsteckeröffnung dient. Hierdurch wird die Länge der elektrischen Klemme weiter verkürzt und darüber hinaus die zweite Öffnung in dem Klemmengehäuse optimal genutzt.According to a particularly advantageous embodiment of the invention electrical terminal designed so that the actuating opening and the test plug opening merge. In total there are only two openings provided, the one opening being the conductor insertion opening, the part of the second opening forms the actuating opening and the other Part of the second opening serves as a test plug opening. This will make the The length of the electrical terminal is further shortened and the second is also used Opening in the terminal housing optimally used.

Im einzelnen gibt es nun eine Vielzahl von Möglichkeiten, die erfindungsgemäße elektrische Klemme auszugestalten, insbesondere die Form, Größe und Anordnung von Betätigungsöffnung und Prüfsteckeröffnung zu variieren und an die jeweiligen Anforderungen, insbesondere den jeweils verwendeten Prüfstecker anzupassen.In particular, there are a multitude of possibilities for the invention To design electrical terminal, in particular the shape, size and To vary the arrangement of the actuation opening and test plug opening and to the respective requirements, in particular the test plug used in each case adapt.

Nachfolgend sollen einige bevorzugte Ausführungsbeispiele der erfindungsgemäßen elektrischen Klemme in Verbindung mit der Zeichnung näher beschrieben werden. In der Zeichnung zeigen

Fig. 1
ein Ausführungsbeispiel eines Klemmenblocks bestehend aus drei erfindungsgemäßen elektrischen Klemmen, in perspektivischer Darstellung, schräg von oben,
Fig. 2
die drei elekrischen Klemmen gemäß Fig. 1, von oben,
Fig. 3
die drei elektrischen Klemmen gemäß Fig.1, schräg von der Seite,
Fig. 4
eine vergrößerte Darstellung eines Ausschnitts der erfindungsgemäßen elektrischen Klemme, von der Seite, teilweise geschnitten,
Fig. 5
eine elektrische Reihenklemme bestehend aus einer Grundklemme und einem Anschlußstecker und
Fig. 6
eine schematische Darstellung verschiedener Anordnungsmöglichkeiten von Leitereinführungsöffnung, Betätigungsöffnung und Prüfsteckeröffnung.
In the following, some preferred exemplary embodiments of the electrical terminal according to the invention will be described in more detail in connection with the drawing. Show in the drawing
Fig. 1
an embodiment of a terminal block consisting of three electrical terminals according to the invention, in perspective, obliquely from above,
Fig. 2
the three electrical terminals of FIG. 1, from above,
Fig. 3
the three electrical terminals according to FIG. 1, diagonally from the side,
Fig. 4
2 shows an enlarged illustration of a section of the electrical terminal according to the invention, partially cut away,
Fig. 5
an electrical terminal block consisting of a basic terminal and a connector and
Fig. 6
is a schematic representation of various arrangement options of conductor insertion opening, actuation opening and test plug opening.

Die Fig. 1 bis 3 zeigen jeweils drei verschiedene elektrische Reihenklemmen 1, die zu einem Klemmenblock 2 zusammengesteckt sind. Die einzelnen Reihenklemmen 1 weisen ein Klemmengehäuse 3 auf, in dem jeweils eine Zugfederklemme 4 und ein Strombalken 5 angeordnet sind. Die Zugfederklemme 4 dient zur elektrischen Kontaktierung eines hier nicht dargestellten elektrischen Leiters, indem der elektrische Leiter durch die Zugfederklemme 4 gegen den Strombalken 5 gezogen wird.1 to 3 each show three different electrical terminal blocks 1, which are plugged together to form a terminal block 2. The individual terminal blocks 1 have a terminal housing 3, in each of which a tension spring terminal 4 and a current bar 5 are arranged. The tension spring clamp 4 is used for electrical contacting of an electrical, not shown here Conductor by the electrical conductor through the tension spring 4 against the Current bar 5 is pulled.

Das Klemmengehäuse 3 jeder elektrischen Reihenklemme 1 weist eine Leitereinführungsöffnung 6, eine Betätigungsöffnung 7 und eine Prüfsteckeröffnung 8 auf. Wird in die Betätigungsöffnung 7 ein Betätigungswerkzeug, beispielsweise die Spitze eines Schraubendrehers eingeführt, so schiebt sich die Spitze des Schraubendrehers zwischen eine Gehäusewand 9 und den Rücken 10 der Zugfederklemme 4, wodurch eine in dem Klemmschenkel 11 der Zugfederklemme 4 ausgebildete Ausnehmung unter die Leitereinführungsöffnung 6 geschoben wird, so daß ein anzuschließender Leiter durch die Leitereinführungsöffnung 6 in die Ausnehmung der Zugfederklemme 4 eingeschoben werden kann. Wird das Betätigungswerkzeug aus der Betätigungsöffnung 7 herausgezogen, so federt die Zugfederklemme 4 zurück, wodurch der in der Ausnehmung eingesteckte Leiter gegen den Strombalken 5 gezogen wird. Der elektrische Leiter ist an die Reihenklemme 1 elektrisch angeschlossen.The terminal housing 3 of each electrical terminal block 1 has a conductor insertion opening 6, an actuation opening 7 and a test plug opening 8 on. An actuating tool, for example, in the actuating opening 7 inserted the tip of a screwdriver, so it pushes Tip of the screwdriver between a housing wall 9 and the back 10 of the tension spring clamp 4, whereby one in the clamping leg 11 of the tension spring clamp 4 formed recess under the conductor insertion opening 6 is pushed so that a conductor to be connected through the conductor insertion opening 6 inserted into the recess of the tension spring clamp 4 can be. If the operating tool comes out of the operating opening 7 pulled out, the spring clip 4 springs back, which in the Recess inserted conductor is pulled against the current bar 5. The electrical conductor is electrically connected to terminal block 1.

Wie insbesondere aus Fig. 2 zu erkennen ist, ist die Prüfsteckeröffnung 8 seitlich versetzt zur Mittelebene M an der Betätigungsöffnung 7 angeordnet. Die Betätigungsöffnung 7 und die Prüfsteckeröffnung 8 können durch eine dünne Wand 12 voneinander getrennt sein, wie dies bei der mittleren Reihenklemme 1 in Fig. 2 der Fall ist. Bevorzugt geht jedoch die Betätigungsöffnung 7 in die Prüfsteckeröffnung 8 über. Da in der Regel die Leitereinführungsöffnung 6 einen im wesentlichen runden Querschnitt hat, können durch die seitlich zur Mittelebene M versetzte Anordnung der Prüfsteckeröffnung 8 die Leitereinführungsöffnung 6 und die Betätigungsöffnung 7 dichter zueinander angeordnet sein.As can be seen in particular from FIG. 2, the test plug opening 8 is on the side offset to the center plane M at the actuation opening 7. The Actuating opening 7 and the test plug opening 8 can be through a thin Wall 12 must be separated from one another, as is the case with the middle terminal block 1 in Fig. 2 is the case. However, the actuation opening 7 preferably goes into the Test plug opening 8 over. As a rule, the conductor insertion opening 6 has a substantially round cross section, can be by the side to Middle plane M offset arrangement of the test plug opening 8 the conductor insertion opening 6 and the actuating opening 7 arranged closer to each other his.

Die Form und Größe der Prüfsteckeröffnung 8 kann entsprechend der Ausführung des Prüfsteckers 13 gewählt werden. Weist der Prüfstecker 13 nur einen relativ dünnen zylindrischen Stift auf, so kann die Prüfsteckeröffnung 8 als eine Bohrung mit einem kleinen Durchmesser ausgebildet sein, wie dies bei der unteren Reihenklemme 1 in Fig. 2 der Fall ist. Wird dagegen ein Prüfstecker 3 mit einem mehradrigen Kontaktstift 14 verwendet, wobei der Kontaktstift 14 dann einen näherungsweise quadratischen Querschnitt hat, so ist auch die Prüfsteckeröffnung 8 entsprechend näherungsweise quadratisch ausgebildet.The shape and size of the test plug opening 8 can correspond to the design of the test plug 13 can be selected. Has the test plug 13 only one relatively thin cylindrical pin, so the test connector opening 8 as a bore with a small diameter can be formed, as in the lower terminal block 1 in Fig. 2 is the case. In contrast, becomes a test plug 3 used with a multi-core contact pin 14, the contact pin 14 then has an approximately square cross section the test connector opening 8 is also approximately square.

Gehen die Betätigungsöffnung 7 und die Prüfsteckeröffnung 8 gemäß der bevorzugten Ausgestaltung ineinander über, so ist die Breite des Übergangs 15 zwischen der Betätigungsöffnung 7 und der Prüfsteckeröffnung 8 kleiner als der Durchmesser oder die Breite des Prüfsteckers 13 bzw. des Kontaktstifts 14. Der Übergang 15 zwischen der Betätigungsöffnung 7 und der Prüfsteckeröffnung 8 wird durch Vorsprünge 16 begrenzt, die in die Betätigungsöffnung 7 hineinragen. Dadurch wird zum einen gewährleistet, daß der Prüfstecker 13 beim Einstecken in die Prüfsteckeröffnung 8 von dieser geführt wird, wird zum anderen verhindert, daß der Prüfstecker 13 in die Betätigungsöffnung 7 herüberrutschen kann. Durch die in Fig. 3 und Fig. 4 dargestellte Anordnung der Zugfederklemme 4 in dem Klemmengehäuse 3 wird ein Betätigungswerkzeug beim Einführen in die Betätigungsöffnung 7 gegen die der Leitereinführungsöffnung 6 abgewandte Kante der Betätigungsöffnung 7 gedrückt. Dadurch, daß die Prüfsteckeröffnung 8 an der der Leitereinführungsöffnung 6 zugewandten Seite der Betätigungsöffnung 7 angeordnet ist, beeinträchtigt die Prüfsteckeröffnung 8 nicht das Einschieben eines Betätigungswerkzeugs in die Betätigungsöffnung 7.Go the actuation opening 7 and the test plug opening 8 according to the preferred Configuration into one another, the width of the transition is 15 between the actuation opening 7 and the test plug opening 8 smaller than the diameter or the width of the test plug 13 or the contact pin 14. The transition 15 between the actuation opening 7 and the test plug opening 8 is delimited by protrusions 16 which extend into the actuation opening 7 protrude. This ensures, on the one hand, that the test plug 13 is guided by this when plugging into the test plug opening 8 on the other hand prevents the test plug 13 from entering the actuation opening 7 can slide over. By the arrangement shown in FIGS. 3 and 4 the tension spring terminal 4 in the terminal housing 3 becomes an operating tool when inserted into the actuation opening 7 against that of the conductor insertion opening 6 pressed away edge of the actuation opening 7. The fact that the test connector opening 8 at the conductor insertion opening 6 facing side of the actuating opening 7 is impaired the test plug opening 8 does not insert an operating tool into the actuation opening 7.

Fig. 5 zeigt eine Ausführungsform einer elektrischen Reihenklemme 1, die aus einer Grundklemme 17 und einem Anschlußstecker 18 besteht. Die Grundklemme 17 kann auf eine, hier nicht dargestellte, Tragschiene aufgerastet werden, wozu im Fuß 19 der Grundklemme 17 entsprechende Rastelemente 20 ausgebildet sind. Die Verbindung der Grundklemme 17 mit dem Anschlußstecker 18 erfolgt über einen in der Grundklemme 17 ausgebildeten Steckerstift 21 und eine in dem Anschlußstecker 18 ausgebildete Steckerbuchse 22, die einteilig mit dem Strombalken 5 verbunden ist. Anstelle des in Fig. 5 dargestellten Anschlußsteckers 18, der zwei Zugfederklemmen 4 zum Anschließen zweier elektrischer Leiter aufweist, können auch die in den Fig. 1 bis 4 dargestellten elektrischen Reihenklemmen 1 mit ihren Steckerbuchsen 22 auf den Steckerstift 21 der Grundklemme 17 aufgesteckt werden.Fig. 5 shows an embodiment of an electrical terminal block 1, which a basic terminal 17 and a connector 18. The basic clamp 17 can be snapped onto a mounting rail, not shown here be what in the foot 19 of the base terminal 17 corresponding locking elements 20 are formed. The connection of the basic terminal 17 with the connector 18 takes place via a trained in the base terminal 17 Connector pin 21 and a connector socket formed in the connector 18 22, which is connected in one piece to the current bar 5. Instead of the in Fig. 5 illustrated connector 18, the two spring terminals 4 for Connecting two electrical conductors, can also those in Fig. 1st to 4 electrical terminal blocks 1 shown with their sockets 22 are plugged onto the plug pin 21 of the basic terminal 17.

In den Fig. 3 und 5 ist zu erkennen, daß an der elektrischen Reihenklemme 1 bzw. an dem Anschlußstecker 18 ein Kodierelement 23 angeordnet ist, wobei das Kodierelement 23 über dünne Verbindungsstege 24, die als Sollbruchstellen ausgebildet sind, mit dem Klemmengehäuse 3 verbunden ist. Dadurch kann das Kodierelement 23 leicht von Hand von dem Klemmengehäuse 3 abgetrennt und in eine in der Grundklemme 17 ausgebildete Öffnung 25 eingesteckt werden. Die Grundklemme 17 kann somit auf einfache Art und Weise kodiert werden, wodurch sichergestellt wird, daß nur der "richtige" Anschlußstecker 18 mit der Grundklemme 17 verbunden wird.3 and 5 it can be seen that on the electrical terminal block 1 or on the connector 18, a coding element 23 is arranged, wherein the coding element 23 via thin connecting webs 24, which act as predetermined breaking points are formed, is connected to the terminal housing 3. Thereby the coding element 23 can be easily separated from the terminal housing 3 by hand and inserted into an opening 25 formed in the base clamp 17 become. The base clamp 17 can thus be simple be coded, which ensures that only the "correct" connector 18 is connected to the base terminal 17.

Aus Fig. 1 ist darüber hinaus zu erkennen, daß an dem Klemmengehäuse 3 mehrere Rastelemente 26 ausgebildet sind, die dazu dienen, die einzelnen elektrischen Reihenklemmen 1 miteinander zu verbinden. Hierzu werden die einzelnen Klemmengehäuse 3 mit Hilfe der Rastelemente 26 und entsprechenden Rastausnehmungen zusammengesteckt. Den Fig. 1 bis 3 kann darüber hinaus auch entnommen werden, daß das Klemmengehäuse 3 eine weitere Öffnung 27 aufweist, in die eine Brücke oder ein Kurzschlußstecker zum elektrischen Kurzschließen von zwei oder mehreren benachbarten elektrischen Reihenklemmen 1 eingeschoben werden kann.From Fig. 1 it can also be seen that on the terminal housing 3rd a plurality of locking elements 26 are formed, which serve the individual electrical terminal blocks 1 to connect. For this, the individual terminal housing 3 with the aid of the locking elements 26 and corresponding Snap recesses put together. 1 to 3 can about it also be seen that the terminal housing 3 another Has opening 27 into which a bridge or a shorting plug electrical shorting of two or more adjacent electrical Terminal blocks 1 can be inserted.

In Fig. 6a ist zunächst die Anordnung von Leitereinführungsöffnung 6, Betätigungsöffnung 7 und Prüfsteckeröffnung 8 bei einer aus dem Stand der Technik bekannten Reihenklemme 1 dargestellt. Die Prüfsteckeröffnung 8 ist mittig zwischen der Leitereinführungsöffnung 6 und der Betätigungsöffnung 7 und ebenso wie die Leitereinführungsöffnung 6 und die Betätigungsöffnung 7 symmetrisch zur Mittelebene M angeordnet. Dagegen ist bei der Darstellung gemäß Fig. 6b erfindungsgemäß die Prüfsteckeröffnung 8 seitlich versetzt zur Mittelebene M an der Betätigungsöffnung 7 angeordnet. Bei der Darstellung in Fig. 6b ist neben der Leitereinführungsöffnung 6 auch die Betätigungsöffnung 7 als kreisrunde Öffnung ausgebildet. Durch die zur Mittelebene M seitlich versetzte Anordnung der Prüfsteckeröffnung 8 können die Leitereinführungsöffnung 6 und die Betätigungsöffnung 7 mit einem geringeren Abstand zueinander angeordnet sein, als dies bei der Anordnung gemäß Fig. 6a der Fall ist, wodurch eine elektrische Klemme 1 mit in Richtung der Mittelebene M kleineren Abmessungen realisierbar ist.6a is the arrangement of conductor insertion opening 6, actuation opening 7 and test plug opening 8 in one from the prior art Technically known terminal block 1 shown. The test plug opening 8 is centered between the conductor insertion opening 6 and the actuation opening 7 and also like the conductor insertion opening 6 and the actuation opening 7 arranged symmetrically to the central plane M. Contrast with the presentation 6b according to the invention the test plug opening 8 laterally offset to Center plane M arranged at the actuation opening 7. In the presentation 6b shows the actuation opening in addition to the conductor insertion opening 6 7 designed as a circular opening. Through to the middle level M laterally offset arrangement of the test connector opening 8 can Conductor insertion opening 6 and the actuation opening 7 with a smaller one Be spaced from each other than this according to the arrangement Fig. 6a is the case, whereby an electrical terminal 1 with in the direction of Middle plane M smaller dimensions can be realized.

Die in den Fig. 6c bis 6e dargestellten erfindungsgemäßen Anordnungsmöglichkeiten von Leitereinführungsöffnung 6, Betätigungsöffnung 7 und Prüfsteckersteckeröffnung 8 unterscheiden sich von der Anordnung gemäß Fig. 6b dadurch, daß die Betätigungsöffnung 7 und die Prüfsteckeröffnung 8 ineinander übergehen. Das quasi "Überlappen" von Betätigungsöffnung 7 und Prüfsteckeröffnung 8 ist durch die gestrichelte Darstellung des nicht vorhandenen Randes der Betätigungsöffnung 7 bzw. der Prüfsteckeröffnung 8 angedeutet.The arrangement options according to the invention shown in FIGS. 6c to 6e of conductor insertion opening 6, actuation opening 7 and test plug connector opening 8 differ from the arrangement according to FIG. 6b characterized in that the actuating opening 7 and the test plug opening 8 into one another pass. The quasi "overlap" of actuation opening 7 and test plug opening 8 is by the dashed representation of the nonexistent Edge of the actuation opening 7 and the test connector opening 8 indicated.

Während bei der Ausgestaltung gemäß der Fig. 6c die Betätigungsöffnung 7 und die Prüfsteckeröffnung 8 jeweils einen runden Querschnitt aufweisen, sind die Betätigungsöffnung 7 und die Prüfsteckeröffnung 8 bei der Ausbildung gemäß Fig. 6d quadratisch ausgebildet. Die Form und Größe der Prüfsteckeröffnung 8 richtet sich dabei nach der Form und Größe des verwendeten Prüfsteckers 13. Bei dem Ausführungsbeispiel gemäß Fig. 6e ist im Unterschied zu den anderen Ausführungsbeispielen eine weitere Prüfsteckeröffnung 8 an der Betätigungsöffnung 7 angeordnet. Eine Reihenklemme 1 mit einer derartigen Ausgestaltung bietet somit die Möglichkeit, unterschiedliche Prüfstecker 13 je nach ihrem Querschnitt in eine der beiden Prüfsteckeröffnungen 8 einzustecken.While in the embodiment according to FIG. 6c, the actuation opening 7 and the test plug opening 8 each have a round cross section, are the actuation opening 7 and the test plug opening 8 during training 6d square. The shape and size of the test plug opening 8 depends on the shape and size of the used Test plug 13. In the embodiment according to FIG. 6e, there is a difference a further test plug opening for the other exemplary embodiments 8 arranged at the actuation opening 7. A terminal block 1 with Such a configuration thus offers the possibility of different Test plug 13 in one of the two test plug openings, depending on its cross section 8 to insert.

Claims (7)

Elektrische Klemme insbesondere eine Reihenklemme, mit einem Klemmengehäuse (3), mit mindestens einem darin angeordneten Leiteranschlußelement, insbesondere einer Zugfederklemme (4) und mit mindestens einem Strombalken (5), wobei das Klemmengehäuse (3) mindestens eine Leitereinführungsöffnung (6) zum Einführen eines anzuschließenden elektrischen Leiters, mindestens eine Betätigungsöffnung (7) zum Einführen eines Betätigungswerkzeugs zum Öffnen der Zugfederklemme (4) und mindestens eine Prüfsteckeröffnung (8) zum Einstecken eines Prüfsteckers (13) aufweist, dadurch gekennzeichnet, daß die Prüfsteckeröffnung (8) seitlich versetzt zur Mittelebene (M) an der Betätigungsöffnung (7) angeordnet ist.Electrical terminal, in particular a terminal block, with a terminal housing (3), with at least one conductor connection element arranged therein, in particular a tension spring terminal (4) and with at least one current bar (5), the terminal housing (3) having at least one conductor insertion opening (6) for inserting a electrical conductor to be connected, has at least one actuating opening (7) for introducing an actuating tool for opening the tension spring terminal (4) and at least one test plug opening (8) for inserting a test plug (13), characterized in that the test plug opening (8) is laterally offset from the central plane (M) is arranged on the actuation opening (7). Elektrische Klemme nach Anspruch 1, dadurch gekennzeichnet, daß die Betätigungsöffnung (7) und die Prüfsteckeröffnung (8) ineinander übergehen.Electrical terminal according to claim 1, characterized in that the actuating opening (7) and the test plug opening (8) merge into one another. Elektrische Klemme nach Anspruch 2, dadurch gekennzeichnet, daß eine Ecke der im wesentlichen rechteckigen Betätigungsöffnung (7) als Prüfstekkeröffnung (8) ausgebildet ist.Electrical terminal according to claim 2, characterized in that a corner of the substantially rectangular actuating opening (7) is designed as a test plug opening (8). Elektrische Klemme nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Prüfsteckeröffnung (8) als im Verhältnis zur Leitereinführungsöffnung (6) kleine Bohrung ausgebildet ist.Electrical terminal according to one of Claims 1 to 3, characterized in that the test plug opening (8) is designed as a small bore in relation to the conductor insertion opening (6). Elektrische Klemme nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Prüfsteckeröffnung (8) im wesentlichen rechteckig ausgebildet ist.Electrical terminal according to one of claims 1 to 3, characterized in that the test plug opening (8) is essentially rectangular. Elektrische Klemme nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Breite des Übergangs (15) zwischen der Betätigungsöffnung (7) und der Prüfsteckeröffnung (8) kleiner als der Durchmesser oder die Breite des Prüfsteckers ist. Electrical terminal according to one of claims 2 to 5, characterized in that the width of the transition (15) between the actuating opening (7) and the test plug opening (8) is smaller than the diameter or the width of the test plug. Elektrische Klemme nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß die Betätigungsöffnung (7) und die Prüfsteckeröffnung (8) durch den Übergang (15) begrenzende Vorsprünge (16) voneinander getrennt sindElectrical terminal according to one of Claims 2 to 6, characterized in that the actuating opening (7) and the test plug opening (8) are separated from one another by projections (16) delimiting the transition (15)
EP02005615A 2001-04-18 2002-03-12 Electrical terminal Revoked EP1251590B1 (en)

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DE20106710U DE20106710U1 (en) 2001-04-18 2001-04-18 Electrical clamp
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CN1310378C (en) 2007-04-11
ES2369657T3 (en) 2011-12-02
JP2002324612A (en) 2002-11-08
EP1251590B1 (en) 2011-08-03
CN1384562A (en) 2002-12-11
DE20106710U1 (en) 2001-08-09
US6736683B2 (en) 2004-05-18
ATE519252T1 (en) 2011-08-15
US20020155760A1 (en) 2002-10-24
EP1251590A3 (en) 2007-08-22

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