EP1638169B1 - Electric connecting terminal - Google Patents

Electric connecting terminal Download PDF

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Publication number
EP1638169B1
EP1638169B1 EP05018678A EP05018678A EP1638169B1 EP 1638169 B1 EP1638169 B1 EP 1638169B1 EP 05018678 A EP05018678 A EP 05018678A EP 05018678 A EP05018678 A EP 05018678A EP 1638169 B1 EP1638169 B1 EP 1638169B1
Authority
EP
European Patent Office
Prior art keywords
clamping
spring
busbar piece
limb
electrical connection
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.)
Not-in-force
Application number
EP05018678A
Other languages
German (de)
French (fr)
Other versions
EP1638169A3 (en
EP1638169A2 (en
Inventor
Anke Steinkemper
Udo Hoppe
Ralf Geske
Dieter Holste
Thomas Beier
Ralf Lange
Markus Kettern
Sebastian Schäfer
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
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP1638169A2 publication Critical patent/EP1638169A2/en
Publication of EP1638169A3 publication Critical patent/EP1638169A3/en
Application granted granted Critical
Publication of EP1638169B1 publication Critical patent/EP1638169B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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

Definitions

  • the invention relates to an electrical connection or connection terminal with a clamping spring and a metal part, wherein the clamping spring and the metal part are arranged in a conductor insertion opening for insertion of an electrical conductor to be connected insulating housing, the clamping spring a clamping leg and a plant leg and the metal part at least one Bus bar piece and wherein the clamping leg and the busbar piece form a spring terminal connection for the electrical conductor to be connected.
  • connection or connection devices serve to produce an electrical connection or an electrical connection, namely to produce an electrically conductive connection between a contact element and a mating contact element, namely a galvanic connection. Whether in a particular case a connection device or a connection device is present, is functionally relatively irrelevant. From a connection device is often spoken when something portable is connected to something stationary, while often speaks of a connecting device then, if something portable with something Ortsbeweglichem or even if something stationary is connected to something stationary.
  • the metal part is formed as a multi-angled contact element that has a substantially perpendicular to the insertion of the conductor to be connected first profile section with a plug-in opening for the conductor to be connected and one of them in the insertion angled second profile section.
  • the substantially U-shaped clamping spring protrudes with its clamping leg through the insertion opening in the contact element, so that the end of the clamping leg presses an inserted into the insertion opening electrical conductor against the second profile section of the contact element.
  • the contact element and the clamping spring thus form a Federkraftklemmanschluß for an electrical conductor to be connected.
  • the clamping spring is thereby connected to the contact element, that the end of the second leg of the clamping spring is riveted above the Steegrofinung on the contact element.
  • the fixation of the clamping spring on the contact element by means of rivets is relatively cumbersome.
  • the size of the known terminal 'terminal is relatively large, in particular, the terminal is relatively high, since the fixing of the second leg of the clamping spring above the Steegro réelle and the rear spring bow of the clamping spring is disposed substantially above the approximately L-shaped contact element ,
  • an electrical terminal which also has a substantially U-shaped clamping spring and an L-shaped metal part.
  • the metal part is connected to a male or female part, so that the known terminal is also referred to as a connector.
  • the L-shaped metal part has a portion arranged perpendicular to the conductor insertion direction, by a rectangular opening is formed through which the electrical conductor to be connected can be inserted.
  • the U-shaped clamping spring is arranged with the ends of their legs in the opening, that the rear spring bow of the clamping spring in the conductor insertion direction in front of the opening and the clamping leg of the clamping spring presses an inserted electrical conductor against the upper edge of the opening, so that also in this known connector, the clamping spring and the metal part form a Federkraftklemmanschluß.
  • the clamping spring slips or even slip out of the opening with the ends of their spring legs, so that a proper positioning of the clamping spring during insertion of an electrical conductor and thus a reliable contacting of the electrical conductor may not more is guaranteed.
  • the present invention is therefore an object of the invention to provide an electrical connection or connection terminal described above, which allows for the smallest possible size a simple yet secure fixation of the clamping spring.
  • the electrical connection or connection terminal according to the invention thus initially differs from the known from the prior art terminals, that the clamping spring is not U-shaped but rather loop-shaped. Moreover, in the electrical connection or connection terminal according to the invention, the recess for insertion of the electrical conductor to be connected is not formed in a section of the busbar but in the contact leg of the clamping spring. In the connection or connection terminal according to the invention, the fixation of clamping spring and busbar is thus not characterized in that the clamping spring is inserted with the ends of their legs in an opening in the busbar but the busbar in the recess in the plant leg of the clamping spring.
  • a holding portion is formed on the clamping spring, so that the busbar piece between the end of the clamping leg and the holding portion is clamped.
  • the end of the clamping leg and the busbar piece form the terminal point for the electrical conductor, in which the end of the clamping leg presses the electrical conductor to be connected against the busbar piece.
  • Loop-shaped clamping springs in electrical connection or connection terminals are basically known from the prior art, namely as so-called tension springs in spring-loaded terminals (cf. DE 198 02 945 A1 , according to the preamble of claim 1).
  • Spring-cage terminals have established themselves in the market over time in addition to screw terminals - and more recently, in addition to electrical terminals with insulation displacement technology - and are used in millions of cases, especially as terminal blocks.
  • the advantage of the spring clamp terminals compared to the screw terminals is that spring clamp terminals allow for faster and easier wiring. To actuate the tension spring clamp requires only one operating tool, such as a screwdriver, which is pressed to open the terminal in an operating shaft.
  • the tip of the screwdriver tensions the tension spring, which opens the clamping point.
  • a conductor to be connected can then be inserted through the recess in the clamping leg and is clamped after pulling out of the screwdriver by the lower edge of the recess against a busbar connected to the tension spring.
  • the known tension spring terminals differ significantly both in design and in their function of the connection or connection terminal according to the invention.
  • the known schlaufförrnigen tension springs - according to their name the conductor to be connected pulled by the clamping leg against the busbar.
  • the connection or connection terminal according to the invention the conductor to be connected is pressed by the clamping leg against the busbar piece.
  • a recess is provided with tension springs in the clamping leg, while in the clamping spring of the connection or connection terminal according to the invention, the recess is formed in the plant leg.
  • the holding portion of the clamping spring is punched out of the plant leg and bent.
  • the holding portion corresponds to the material of the abutment leg, which is punched out of the plant leg in the formation of the recess.
  • the recess and the holding portion can be made particularly simple and material-saving by a punching and bending process. Due to the integral nature of the abutment leg and of the holding section, a further method step for connecting the holding section to the clamping spring is not required beyond that.
  • the end of the busbar piece is bent so that the end of the busbar piece together with the end of the clamping leg of the clamping spring form an insertion funnel for the electrical conductor to be connected. Due to the design of the insertion funnel thus the tip of an inserted through the conductor insertion opening in the insulating electrical conductor is automatically positioned correctly, so that a simple and accurate connection of an electrical conductor to the electrical connection or connection terminal is possible.
  • the electrical connection or connection device is preferably designed as a connector so that the metal part except the busbar piece still has a male or female part, wherein the busbar piece and the male or female part are integrally formed, so that the metal part All in all easy to produce by punching and bending.
  • Good electrical connectors are characterized in that in the contacted state of the contact resistance between the contact element, d. H. the male or female part, and the corresponding mating contact element permanently has the lowest possible value.
  • the contact resistance between the contact element and the contacted with the contact element mating contact element depends on the geometry of contact element and mating contact element, of the materials of contact element and mating contact element and in particular from the contact force or the contact pressure between the contact element and the mating contact element.
  • the contact force is usually achieved in that when contacting the contact element is elastically deformed, so that from the elastic deformation of a restoring force as a contact force and then resulting in a corresponding contact pressure
  • the problem now is that when using a highly conductive material for the contact element, ie for the male or female part of the metal part, the spring rate of the contact element is relatively low, so that no sufficient and lasting contact force can be realized.
  • an over-spring is provided, which surrounds the socket part.
  • the over-spring which is adapted substantially to the geometry of the socket part, can be made for example of spring steel.
  • the metal part and thus also the socket part itself is made of a material with a good conductivity, for example of a copper alloy.
  • the insulating housing has an actuating opening for insertion of an actuating tool and is formed on the clamping leg of the clamping spring a kink, which is aligned in the direction of the spring force of the clamping leg, so that the Tip of the actuating tool for opening the clamping spring can act on the kink.
  • clamping leg kink allows easier engagement of the tip of the actuating tool on the clamping leg to open the clamping spring.
  • the Fig. 1 and 2 show a clamping spring 1 and a metal part 2 of an electrical connection or connection terminal.
  • the clamping spring 1 has a clamping leg 4 and a contact leg 5, wherein the clamping leg 4 and the contact leg 5 are approximately perpendicular to each other.
  • the metal part 2 has a busbar piece 6 and an integral with the busbar piece 6 female part 14.
  • a recess 7 is formed in the contact leg 5 of the clamping spring 1, in which the tip of the electrical conductor 3 to be connected can be inserted.
  • the end 8 of the clamping leg 4 extends into the recess 7 in the plant leg 5 inside.
  • the clamping spring 1 thus has an approximately loop-shaped contour, wherein the bearing leg 5 and thus also the recess 7 is substantially perpendicular to the insertion direction of the electrical conductor to be connected 3 and perpendicular to the busbar piece 6.
  • the clamping spring 1 has a holding section 9, which is punched out of the plant leg 5.
  • the bearing limb 5 and the holding portion 9 are substantially perpendicular to each other, while the busbar piece 6 and the holding portion 9 are substantially parallel to each other.
  • a fixation of the clamping spring 1 to the metal part 2 and the metal part 2 on the clamping spring 1 is now easy to manufacture, that the busbar piece 6 is inserted opposite to the insertion of the electrical conductor 3 to be connected through the recess 7, wherein the busbar piece 6 on the holding portion 9 rests and is pressed by the end 8 of the clamping leg 4 against the holding portion 9.
  • the end 10 of the busbar piece 6 protrudes through the recess 7 in the plant leg 5 therethrough.
  • the position of the clamping spring 1 can be further fixed in that in the insulating housing, a groove or shoulder for receiving or support of the mounting web 13 is formed, which is at the opposite end of the holding portion 9 of the recess 7 punched out of the plant leg 5 and bent
  • the metal part 2 in addition to the busbar piece 6 still a socket part 14.
  • the busbar piece 6 may also be connected to a pin-shaped connector part.
  • an over-spring 18 is provided, which is adapted to the geometry of the female part 14.
  • the metal part 2 in total, ie both the busbar piece 6 and the female part 14, are made of a highly electrically conductive material, in particular of a copper alloy, while the over-spring 18 is made of a material with a high spring rate, for example of spring steel.
  • the clamping leg 4 of the clamping spring 1 has a kink 19 which is aligned in the direction of the spring force of the clamping leg 4, so that through the kink 19 an improved point of application for the tip of an actuating tool for opening the clamping spring 1 is realized.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Conductive Materials (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Connecting clamp consists of clamping spring (1) and metal part (2) in insulating housing with inserting aperture for conductor (3) to be inserted. In support shank (5) of clamping spring is formed recess (7) for inserting connected conductor. Clamping shank (4) and support shank are so bent that end (8) of clamping shank passes through recess.Clamping spring includes holding section (9) parallel to inserting direction of conductor and to current rail member (6) so that current rail member is insertable into recess in opposite direction to conductor and clamped firmly between end of clamping shank and holding section.

Description

Die Erfindung betrifft eine elektrische Anschluß- oder Verbindungsklemme mit einer Klemmfeder und mit einem Metallteil, wobei die Klemmfeder und das Metallteil in einem eine Leitereinführungsöffnung zum Einführen eines anzuschließenden elektrischen Leiters aufweisenden Isoliergehäuse angeordnet sind, die Klemmfeder einen Klemmschenkel und einen Anlageschenkel und das Metallteil zumindest ein Stromschienenstück aufweist und wobei der Klemmschenkel und das Stromschienenstück einen Federkraftklemmanschluß für den anzuschließenden elektrischen Leiter bilden.The invention relates to an electrical connection or connection terminal with a clamping spring and a metal part, wherein the clamping spring and the metal part are arranged in a conductor insertion opening for insertion of an electrical conductor to be connected insulating housing, the clamping spring a clamping leg and a plant leg and the metal part at least one Bus bar piece and wherein the clamping leg and the busbar piece form a spring terminal connection for the electrical conductor to be connected.

Elektrische Anschluß- oder Verbindungseinrichtungen dienen dazu, einen elektrischen Anschluß oder eine elektrische Verbindung herzustellen, nämlich zwischen einem Kontaktelement und einem Gegenkontaktelement eine elektrisch leitende Verbindung herzustellen, und zwar eine galvanische Verbindung. Ob im Einzelfall eine Anschlußeinrichtung oder eine Verbindungseinrichtung vorliegt, ist funktional relativ belanglos. Von einer Anschlußeinrichtung spricht man häufig dann, wenn etwas Ortsbewegliches an etwas Ortsfestes angeschlossen wird, während man von einer Verbindungseinrichtung häufig dann spricht, wenn etwas Ortsbewegliches mit etwas Ortsbeweglichem oder auch wenn etwas Ortsfestes mit etwas Ortsfestem verbunden wird.Electrical connection or connection devices serve to produce an electrical connection or an electrical connection, namely to produce an electrically conductive connection between a contact element and a mating contact element, namely a galvanic connection. Whether in a particular case a connection device or a connection device is present, is functionally relatively irrelevant. From a connection device is often spoken when something portable is connected to something stationary, while often speaks of a connecting device then, if something portable with something Ortsbeweglichem or even if something stationary is connected to something stationary.

Eine eingangs beschriebene elektrische Anschlußklemme ist beispielsweise aus der DE 101 03 107 A1 bekannt. Bei der bekannten Anschlußklemme ist das Metallteil als mehrfach abgewinkeltes Kontaktelement ausgebildet, daß einen im wesentlichen senkrecht zur Einsteckrichtung des anzuschließenden Leiters verlaufenden ersten Profilabschnitt mit einer Stecköffnung für den anzuschließenden Leiter und einen davon in Einsteckrichtung abgewinkelten zweiten Profilabschnitt aufweist. Die im wesentlichen U-förmig ausgebildete Klemmfeder ragt mit ihrem Klemmschenkel durch die Stecköffnung im Kontaktelement, so daß das Ende des Klemmschenkels einen in die Stecköffnung eingesteckten elektrischen Leiter gegen den zweiten Profilabschnitt des Kontaktelements drückt. Das Kontaktelement und die Klemmfeder bilden somit einen Federkraftklemmanschluß für einen anzuschließenden elektrischen Leiter.An electrical terminal described above is for example from the DE 101 03 107 A1 known. In the known terminal, the metal part is formed as a multi-angled contact element that has a substantially perpendicular to the insertion of the conductor to be connected first profile section with a plug-in opening for the conductor to be connected and one of them in the insertion angled second profile section. The substantially U-shaped clamping spring protrudes with its clamping leg through the insertion opening in the contact element, so that the end of the clamping leg presses an inserted into the insertion opening electrical conductor against the second profile section of the contact element. The contact element and the clamping spring thus form a Federkraftklemmanschluß for an electrical conductor to be connected.

Die Klemmfeder ist dabei dadurch mit dem Kontaktelement verbunden, daß das Ende des zweiten Schenkels der Klemmfeder oberhalb der Steeköfinung an dem Kontaktelement festgenietet ist. Bei der bekannten Anschlußklemme ist die Fixierung der Klemmfeder an dem Kontaktelement mittels Nieten relativ umständlich. Darüber hinaus ist die Baugröße der bekannten Anschluß-' klemme relativ groß, insbesondere ist die Anschlußklemme relativ hoch, da durch die Fixierung des zweiten Schenkels der Klemmfeder oberhalb der Steeköffnung auch der rückwärtige Federbogen der Klemmfeder im wesentlichen oberhalb des näherungsweise L-förmigen Kontaktelements angeordnet ist.The clamping spring is thereby connected to the contact element, that the end of the second leg of the clamping spring is riveted above the Steeköfinung on the contact element. In the known terminal, the fixation of the clamping spring on the contact element by means of rivets is relatively cumbersome. In addition, the size of the known terminal 'terminal is relatively large, in particular, the terminal is relatively high, since the fixing of the second leg of the clamping spring above the Steeköffnung and the rear spring bow of the clamping spring is disposed substantially above the approximately L-shaped contact element ,

Aus der DE 198 17 927 C1 ist eine elektrische Anschlußklemme bekannt, die ebenfalls eine im wesentlichen U-förmige Klemmfeder und ein L-förmiges Metallteil aufweist. Das Metallteil ist mit einem Stecker- oder Buchsenteil verbunden, so daß die bekannte Anschlußklemme auch als Steckverbinder bezeichnet wird. Das L-förmige Metallteil weist ein senkrecht zur Leitereinführungsrichtung angeordnetes Teilstück auf, indem eine rechteckförmige Öffnung ausgebildet ist, durch die der anzuschließende elektrische Leiter hindurchgesteckt werden kann. Die U-förmige Klemmfeder ist mit den Enden ihrer Schenkel derart in der Öffnung angeordnet, daß sich der rückwärtige Federbogen der Klemmfeder in Leitereinführungsrichtung vor der Öffnung befindet und der Klemmschenkel der Klemmfeder einen eingesteckten elektrischen Leiter gegen den oberen Rand der Öffnung drückt, so daß auch bei diesem bekannten Steckverbinder die Klemmfeder und das Metallteil einen Federkraftklemmanschluß bilden. Beim Öffnen der Klemmfeder mit einem Betätigungswerkzeug besteht die Gefahr, daß die Klemmfeder verrutscht oder sogar mit den Enden ihrer Federschenkel aus der Öffnung herausrutscht, so daß eine ordnungsgemäße Positionierung der Klemmfeder beim Einführen eines elektrischen Leiters und damit eine zuverlässige Kontaktierung des elektrischen Leiters unter Umständen nicht mehr gewährleistet ist.From the DE 198 17 927 C1 an electrical terminal is known, which also has a substantially U-shaped clamping spring and an L-shaped metal part. The metal part is connected to a male or female part, so that the known terminal is also referred to as a connector. The L-shaped metal part has a portion arranged perpendicular to the conductor insertion direction, by a rectangular opening is formed through which the electrical conductor to be connected can be inserted. The U-shaped clamping spring is arranged with the ends of their legs in the opening, that the rear spring bow of the clamping spring in the conductor insertion direction in front of the opening and the clamping leg of the clamping spring presses an inserted electrical conductor against the upper edge of the opening, so that also in this known connector, the clamping spring and the metal part form a Federkraftklemmanschluß. When opening the clamping spring with an operating tool there is a risk that the clamping spring slips or even slip out of the opening with the ends of their spring legs, so that a proper positioning of the clamping spring during insertion of an electrical conductor and thus a reliable contacting of the electrical conductor may not more is guaranteed.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine eingangs beschriebene elektrische Anschluß- oder Verbindungsklemme zur Verfügung zu stellen, welche bei einer möglichst geringen Baugröße eine einfache aber dennoch sichere Fixierung der Klemmfeder ermöglicht.The present invention is therefore an object of the invention to provide an electrical connection or connection terminal described above, which allows for the smallest possible size a simple yet secure fixation of the clamping spring.

Diese Aufgabe ist bei der eingangs beschriebenen elektrischen Anschluß- oder Verbindungsklemme dadurch gelöst, daß in dem Anlageschenkel der Klemmfeder eine Ausnehmung zum Einstecken des Leiters ausgebildet ist, daß der Klemmschenkel und der Anlageschenkel der Klemmfeder derart aufeinander zugebogen sind, daß sich das Ende des Klemmschenkels durch die Ausnehmung in dem Anlageschenkel hindurcherstreckt, und daß die Klemmfeder einen Halteabschnitt aufweist, der im wesentlichen parallel zur Einsteckrichtung des anzuschließenden elektrischen Leiters und parallel zum Stromschienenstück verläuft, derart, daß das Stromschienenstück entgegengesetzt zur Einsteckrichtung des anzuschließenden Leiters durch die Ausnehmung einsteckbar ist, wobei das Stromschienenstück zwischen dem Ende des Klemmschenkels und dem Halteabschnitt festgeklemmt ist.This object is achieved in the electrical connection or connection terminal described above, characterized in that in the plant leg of the clamping spring is formed a recess for insertion of the conductor, that the clamping leg and the plant leg of the clamping spring are zugebogen such that the end of the clamping leg through extends through the recess in the plant leg, and that the clamping spring has a holding portion which is parallel to the insertion direction of the electrical conductor to be connected and parallel to the busbar piece, such that the busbar piece opposite to the insertion direction of the conductor to be connected through the recess can be inserted, wherein the Busbar piece between the end of the clamping leg and the holding portion is clamped.

Die erfindungsgemäße elektrische Anschluß- oder Verbindungsklemme unterscheidet sich somit zunächst dadurch von den aus dem Stand der Technik bekannten Anschlußklemmen, daß die Klemmfeder nicht U-förmig sondern eher schlaufenförmig ausgebildet ist. Darüber hinaus ist bei der erfindungsgemäßen elektrischen Anschluß- oder Verbindungsklemme die Ausnehmung zum Einstecken des anzuschließenden elektrischen Leiters nicht in einem Teilstück der Stromschiene sondern in dem Anlageschenkel der Klemmfeder ausgebildet. Bei der erfindungsgemäßen Anschluß- oder Verbindungsklemme erfolgt die Fixierung von Klemmfeder und Stromschiene somit nicht dadurch, daß die Klemmfeder mit den Enden ihrer Schenkel in eine Öffnung in der Stromschiene sondern die Stromschiene in die Ausnehmung im Anlageschenkel der Klemmfeder eingesteckt wird.The electrical connection or connection terminal according to the invention thus initially differs from the known from the prior art terminals, that the clamping spring is not U-shaped but rather loop-shaped. Moreover, in the electrical connection or connection terminal according to the invention, the recess for insertion of the electrical conductor to be connected is not formed in a section of the busbar but in the contact leg of the clamping spring. In the connection or connection terminal according to the invention, the fixation of clamping spring and busbar is thus not characterized in that the clamping spring is inserted with the ends of their legs in an opening in the busbar but the busbar in the recess in the plant leg of the clamping spring.

Zur Befestigung der Klemmfeder relativ zum Metallteil ist an der Klemmfeder ein Halteabschnitt ausgebildet, so daß das Stromschienenstück zwischen dem Ende des Klemmschenkels und dem Halteabschnitt festgeklemmt wird. Wie im Stand der Technik auch, bilden das Ende des Klemmschenkels und das Stromschienenstück die Klemmstelle für den elektrischen Leiter, in dem das Ende des Klemmschenkels den anzuschließenden elektrischen Leiter gegen das Stromschienenstück drückt.For fixing the clamping spring relative to the metal part, a holding portion is formed on the clamping spring, so that the busbar piece between the end of the clamping leg and the holding portion is clamped. As in the prior art, the end of the clamping leg and the busbar piece form the terminal point for the electrical conductor, in which the end of the clamping leg presses the electrical conductor to be connected against the busbar piece.

Schlaufenförmige Klemmfedern bei elektrischen Anschluß- oder Verbindungsklemmen sind grundsätzlich aus dem Stand der Technik bekannt, nämlich als sogenannt Zugfedern in Zugfederklemmen(vgl. DE 198 02 945 A1 , gemäß Oberbegriff des Anspruchs 1). Zugfederklemmen haben sich im Laufe der Zeit neben Schraubklemmen - und seit kürzerer Zeit auch neben elektrischen Klemmen mit Schneid-Anschlußtechnik - am Markt etabliert und werden millionenfach insbesondere als Reihenklemmen verwendet. Der Vorteil der Zugfederklemmen im Vergleich zu den Schraubklemmen besteht darin, daß Zugfederklemmen eine schnellere und einfachere Verdrahtung ermöglichen. Zum Betätigen der Zugfederklemme benötigt man nur ein Betätigungswerkzeug, beispielsweise einen Schraubendreher, der zum Öffnen der Klemme in einen Betätigungsschacht gedrückt wird. Dabei spannt die Spitze des Schraubendrehers die Zugfeder, wodurch sich die Klemmstelle öffnet. Ein anzuschließender Leiter kann dann durch die Ausnehmung in den Klemmschenkel eingeführt werden und wird nach dem Herausziehen des Schraubendrehers durch die Unterkante der Ausnehmung gegen eine mit der Zugfeder verbundene Stromschiene geklemmt.Loop-shaped clamping springs in electrical connection or connection terminals are basically known from the prior art, namely as so-called tension springs in spring-loaded terminals (cf. DE 198 02 945 A1 , according to the preamble of claim 1). Spring-cage terminals have established themselves in the market over time in addition to screw terminals - and more recently, in addition to electrical terminals with insulation displacement technology - and are used in millions of cases, especially as terminal blocks. The advantage of the spring clamp terminals compared to the screw terminals is that spring clamp terminals allow for faster and easier wiring. To actuate the tension spring clamp requires only one operating tool, such as a screwdriver, which is pressed to open the terminal in an operating shaft. The tip of the screwdriver tensions the tension spring, which opens the clamping point. A conductor to be connected can then be inserted through the recess in the clamping leg and is clamped after pulling out of the screwdriver by the lower edge of the recess against a busbar connected to the tension spring.

Die bekannten Zugfederklemmen unterscheiden sich jedoch sowohl in der Ausgestaltung als auch in ihrer Funktion deutlich von der erfindungsgemäßen Anschluß- oder Verbindungsklemme. Bei den bekannten schlaufenförrnigen Zugfedern wird - entsprechend ihrem Namen- der anzuschließende Leiter vom Klemmschenkel gegen die Stromschiene gezogen. Im Unterschied dazu wird bei der erfindungsgemäßen Anschluß- oder Verbindungsklemme der anzuschließende Leiter vom Klemmschenkel gegen das Stromschienenstück gedrückt. Darüber hinaus ist bei Zugfedern im Klemmschenkel eine Ausnehmung vorgesehen, während bei der Klemmfeder der erfindungsgemäßen Anschluß- oder Verbindungsklemme die Ausnehmung im Anlageschenkel ausgebildet ist.However, the known tension spring terminals differ significantly both in design and in their function of the connection or connection terminal according to the invention. In the known schlaufförrnigen tension springs - according to their name - the conductor to be connected pulled by the clamping leg against the busbar. In contrast, in the connection or connection terminal according to the invention the conductor to be connected is pressed by the clamping leg against the busbar piece. In addition, a recess is provided with tension springs in the clamping leg, while in the clamping spring of the connection or connection terminal according to the invention, the recess is formed in the plant leg.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist der Halteabschnitt der Klemmfeder aus dem Anlageschenkel freigestanzt und abgebogen. Der Halteabschnitt entspricht dabei dem Material des Anlageschenkels, das bei der Ausbildung der Ausnehmung aus dem Anlageschenkel freigestanzt wird. Somit können die Ausnehmung und der Halteabschnitt besonders einfach und materialsparend durch einen Stanz- und Biegevorgang hergestellt werden. Durch die Einstückigkeit des Anlageschenkels und des Halteabschnitts ist darüber hinaus ein weiterer Verfahrensschritt zur Verbindung des Halteabschnitts mit der Klemmfeder nicht erforderlich. Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist das Ende des Stromschienenstücks derart abgebogen, daß das Ende des Stromschienenstücks zusammen mit dem Ende des Klemmschenkels der Klemmfeder einen Einführtrichter für den anzuschließenden elektrischen Leiter bilden. Durch die Ausbildung des Einführtrichters wird somit die Spitze eines durch die Leitereinführungsöffnung in das Isoliergehäuse eingeschobenen elektrischen Leiters automatisch richtig positioniert, so daß ein einfaches und exaktes Anschließen eines elektrischen Leiters an die elektrische Anschluß- oder Verbindungsklemme möglich ist.According to an advantageous embodiment of the invention, the holding portion of the clamping spring is punched out of the plant leg and bent. The holding portion corresponds to the material of the abutment leg, which is punched out of the plant leg in the formation of the recess. Thus, the recess and the holding portion can be made particularly simple and material-saving by a punching and bending process. Due to the integral nature of the abutment leg and of the holding section, a further method step for connecting the holding section to the clamping spring is not required beyond that. According to a further advantageous embodiment of the invention, the end of the busbar piece is bent so that the end of the busbar piece together with the end of the clamping leg of the clamping spring form an insertion funnel for the electrical conductor to be connected. Due to the design of the insertion funnel thus the tip of an inserted through the conductor insertion opening in the insulating electrical conductor is automatically positioned correctly, so that a simple and accurate connection of an electrical conductor to the electrical connection or connection terminal is possible.

Wie zuvor bereits ausgeführt, ist die erfindungsgemäße elektrische Anschluß- oder Verbindungseinrichtung vorzugsweise als Steckverbinder ausgebildet, so daß das Metallteil außer dem Stromschienenstück noch ein Stecker- oder Buchsenteil aufweist, wobei das Stromschienenstück und der Stecker- oder Buchsenteil einstückig ausgebildet sind, so daß das Metallteil insgesamt einfach durch Stanzen und Biegen herstellbar ist.As already stated above, the electrical connection or connection device according to the invention is preferably designed as a connector so that the metal part except the busbar piece still has a male or female part, wherein the busbar piece and the male or female part are integrally formed, so that the metal part All in all easy to produce by punching and bending.

Gute elektrische Steckverbinder zeichnen sich dadurch aus, daß im kontaktierten Zustand der Übergangswiderstand zwischen dem Kontaktelement, d. h. dem Stecker- oder Buchsenteil, und dem korrespondierenden Gegenkontaktelement dauerhaft einen möglichst geringen Wert aufweist. Der Übergangswiderstand zwischen dem Kontaktelement und dem mit dem Kontaktelement kontaktierten Gegenkontaktelement hängt dabei von der Geometrie von Kontaktelement und Gegenkontaktelement, von den Materialien von Kontaktelement und Gegenkontaktelement und insbesondere von der Kontaktkraft bzw. dem Kontaktdruck zwischen dem Kontaktelement und dem Gegenkontaktelement ab. Die Kontaktkraft wird in der Regel dadurch erzielt, daß beim Kontaktieren das Kontaktelement elastisch verformt wird, so daß aus der elastischen Verformung eine Rückstellkraft als Kontaktkraft und daraus resultierend dann ein entsprechender Kontaktdruck entstehtGood electrical connectors are characterized in that in the contacted state of the contact resistance between the contact element, d. H. the male or female part, and the corresponding mating contact element permanently has the lowest possible value. The contact resistance between the contact element and the contacted with the contact element mating contact element depends on the geometry of contact element and mating contact element, of the materials of contact element and mating contact element and in particular from the contact force or the contact pressure between the contact element and the mating contact element. The contact force is usually achieved in that when contacting the contact element is elastically deformed, so that from the elastic deformation of a restoring force as a contact force and then resulting in a corresponding contact pressure

Problematisch ist nun, daß bei Verwendung eines gut leitenden Materials für das Kontaktelement, d. h. für den Stecker- oder Buchsenteil des Metallteils, die Federrate des Kontaktelements relativ gering ist, so daß keine ausreichende und dauerhafte Kontaktkraft realisiert werden kann. Gemäß einer vorteilhaften Ausgestaltung einer elektrischen Anschluß- oder Verbindungsklemme mit einem zwei einander gegenüberliegende Schenkel und einen die Schenkel verbindenden Steg aufweisenden Buchsenteil ist dieser Nachteil dadurch behoben, daß eine Überfeder vorgesehen ist, die das Buchsenteil umgibt. Die Überfeder, die im wesentlichen der Geometrie des Buchsenteils angepaßt ist, kann dabei beispielsweise aus Federstahl hergestellt sein. Im Unterschied dazu ist das Metallteil und damit auch das Buchsenteil selber aus einem Material mit einer guten Leitfähigkeit hergestellt, beispielsweise aus einer Kupferlegierung.The problem now is that when using a highly conductive material for the contact element, ie for the male or female part of the metal part, the spring rate of the contact element is relatively low, so that no sufficient and lasting contact force can be realized. According to an advantageous embodiment of an electrical connection or connection terminal with a two opposing legs and a connecting leg connecting leg, this disadvantage is eliminated in that an over-spring is provided, which surrounds the socket part. The over-spring, which is adapted substantially to the geometry of the socket part, can be made for example of spring steel. In contrast, the metal part and thus also the socket part itself is made of a material with a good conductivity, for example of a copper alloy.

Gemäß einer letzten vorteilhaften Ausgestaltung der Erfindung, die hier noch kurz erwähnt werden soll, weist das Isoliergehäuse eine Betätigungsöffnung zum Einführen eines Betätigungswerkzeugs auf und ist an dem Klemmschenkel der Klemmfeder ein Knick ausgebildet, der in Richtung der Federkraft des Klemmschenkels ausgerichtet ist, so daß die Spitze des Betätigungswerkzeugs zum Öffnen der Klemmfeder an dem Knick angreifen kann. Durch das Vorsehen einer Betätigungsöffnung zum Einführen eines Betätigungswerkzeugs wird zunächst erreicht, daß das elektrische Anschluß- oder Verbindungsklemme auch für feindrähtige flexible Leiter verwendet werden kann, bei denen ein Öffnen der Klemmfeder lediglich durch Einstecken des elektrischen Leiters nicht möglich ist. Darüber hinaus kann durch das Öffnen der Klemmfeder mit Hilfe des Betätigungswerkzeugs auch ein bereits geklemmter elektrischer Leiter wieder aus der Klemmstelle gelöst werden. Der an dem Klemmschenkel ausgebildete Knick ermöglicht dabei ein einfacheres Angreifen der Spitze des Betätigungswerkzeugs am Klemmschenkel zum Öffnen der Klemmfeder.According to a last advantageous embodiment of the invention, which will be briefly mentioned here, the insulating housing has an actuating opening for insertion of an actuating tool and is formed on the clamping leg of the clamping spring a kink, which is aligned in the direction of the spring force of the clamping leg, so that the Tip of the actuating tool for opening the clamping spring can act on the kink. By providing an actuating opening for insertion of an actuating tool is first achieved that the electrical connection or connection terminal can also be used for fine-wire flexible conductor, in which an opening of the clamping spring is not possible only by inserting the electrical conductor. In addition, by opening the clamping spring by means of the actuating tool, an already clamped electrical conductor can be released from the nip again. The formed on the clamping leg kink allows easier engagement of the tip of the actuating tool on the clamping leg to open the clamping spring.

Im einzelnen gibt es nun eine Vielzahl von Möglichkeiten, die erfindungsgemäße elektrische Anschluß- oder Verbindungsklemme auszugestalten und weiterzubilden. Dazu wird verwiesen einerseits auf die dem Patentanspruch 1 nachgeordneten Patentansprüche, andererseits auf die nachfolgende Beschreibung eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung. In der Zeichnung zeigen

Fig. 1
eine erfindungsgemäße elektrische Anschluß- oder Verbindungsklemme mit einem anzuschließenden elektrischen Leiter,
Fig. 2
eine weitere Ansicht der erfindungsgemäßen elektrischen Anschluß- oder Verbindungseinrichtung und
Fig. 3
die Klemmfeder der elektrischen Anschluß- oder Verbindungsklemme gemäß den Fig. 1 und 2.
In particular, there are a variety of ways to design and further develop the electrical connection or connection terminal according to the invention. Reference is made on the one hand to the claims subordinate to claim 1, on the other hand, to the following description of a preferred embodiment in conjunction with the drawings. In the drawing show
Fig. 1
an electrical connection or connection terminal according to the invention with an electrical conductor to be connected,
Fig. 2
a further view of the electrical connection or connection device according to the invention and
Fig. 3
the clamping spring of the electrical connection or connection terminal according to Fig. 1 and 2 ,

Die Fig. 1 und 2 zeigen eine Klemmfeder 1 und ein Metallteil 2 einer elektrischen Anschluß- oder Verbindungsklemme. Zu der elektrischen Anschluß- oder Verbindungsklemme gehört noch ein - hier nicht dargestelltes - Isoliergehäuse mit einer Leitereinfuhrungsöffnung zum Einfibren eines - in Fig. 1 dargestellten - anzuschließenden elektrischen Leiters 3. Die Klemmfeder 1 weist einen Klemmschenkel 4 und einen Anlageschenkel 5 auf, wobei der Klemmschenkel 4 und der Anlageschenkel 5 näherungsweise senkrecht zueinander verlaufen. Das Metallteil 2 weist ein Stromschienenstück 6 und ein einstückig mit dem Stromschienenstück 6 verbundenes Buchsenteil 14 auf.The Fig. 1 and 2 show a clamping spring 1 and a metal part 2 of an electrical connection or connection terminal. To the electrical connection or connection terminal still belongs - not shown here - insulating housing with a conductor insertion opening for Einfibren a - in Fig. 1 The clamping spring 1 has a clamping leg 4 and a contact leg 5, wherein the clamping leg 4 and the contact leg 5 are approximately perpendicular to each other. The metal part 2 has a busbar piece 6 and an integral with the busbar piece 6 female part 14.

Wie insbesondere aus den Fig. 1 und 3 ersichtlich ist, ist in dem Anlageschenkel 5 der Klemmfeder 1 eine Ausnehmung 7 ausgebildet, in die die Spitze des anzuschließenden elektrischen Leiters 3 eingesteckt werden kann. In dem in den Figuren dargestellten Zustand, in dem der elektrische Leiter 3 noch nicht an die elektrische Anschluß- oder Verbindungsklemme angeschlossen ist, erstreckt sich das Ende 8 des Klemmschenkels 4 in die Ausnehmung 7 im Anlageschenkel 5 hinein. Die Klemmfeder 1 weist somit eine etwa schlaufenförmige Kontur auf, wobei der Anlageschenkel 5 und somit auch die Ausnehmung 7 im wesentlichen senkrecht zur Einsteckrichtung des anzuschließenden elektrischen Leiters 3 und senkrecht zum Stromschienenstück 6 verläuft.As in particular from the Fig. 1 and 3 it can be seen, a recess 7 is formed in the contact leg 5 of the clamping spring 1, in which the tip of the electrical conductor 3 to be connected can be inserted. In the state shown in the figures, in which the electrical conductor 3 is not yet connected to the electrical connection or connection terminal, the end 8 of the clamping leg 4 extends into the recess 7 in the plant leg 5 inside. The clamping spring 1 thus has an approximately loop-shaped contour, wherein the bearing leg 5 and thus also the recess 7 is substantially perpendicular to the insertion direction of the electrical conductor to be connected 3 and perpendicular to the busbar piece 6.

Neben dem Klemmschenkel 4 und dem Anlageschenkel 5 weist die Klemmfeder 1 noch einen Halteabschnitt 9 auf, der aus dem Anlageschenkel 5 freigestanzt ist. Wie sich aus den Figuren ergibt, verlaufen der Anlageschenkel 5 und der Halteabschnitt 9 im wesentlichen senkrecht zueinander, während das Stromschienenstück 6 und der Halteabschnitt 9 im wesentlichen parallel zueinander verlaufen.In addition to the clamping leg 4 and the plant leg 5, the clamping spring 1 has a holding section 9, which is punched out of the plant leg 5. As can be seen from the figures, the bearing limb 5 and the holding portion 9 are substantially perpendicular to each other, while the busbar piece 6 and the holding portion 9 are substantially parallel to each other.

Aus der Fig. 1 und 2 ist ersichtlich, daß das Ende 10 des Stromschienenstücks 6 derart - bei der dargestellten Orientierung nach unten - abgebogen ist, daß das Ende 10 des Stromschienenstücks 6 zusammen mit dem Ende 8 des Klemmschenkels 4 einen Einführtrichter 11 für den anzuschließenden elektrischen Leiter 3 bilden. Das Ende 10 des Stromschienenstücks 6 weist dabei die Form einer Skispitze auf.From the Fig. 1 and 2 It can be seen that the end 10 of the busbar piece 6 in such a way - in the illustrated orientation downwards - is bent, that the end 10 of the busbar piece 6 together with the end 8 of the clamping leg 4 form an insertion funnel 11 for the electrical conductor 3 to be connected. The end 10 of the busbar piece 6 has the shape of a ski tip.

Eine Fixierung der Klemmfeder 1 an dem Metallteil 2 bzw. des Metallteils 2 an der Klemmfeder 1 ist nun dadurch einfach herstellbar, daß das Stromschienenstück 6 entgegengesetzt zur Einsteckrichtung des anzuschließenden elektrischen Leiters 3 durch die Ausnehmung 7 eingesteckt wird, wobei das Stromschienenstück 6 auf dem Halteabschnitt 9 aufliegt und durch das Ende 8 des Klemmschenkels 4 gegen den Halteabschnitt 9 gedrückt wird. Dabei ragt das Ende 10 des Stromschienenstücks 6 durch die Ausnehmung 7 im Anlageschenkel 5 hindurch. Hierdurch wird sowohl eine gute Auflage des Stromschienenstücks 6 auf dem Halteabschnitt 9 als auch eine ausreichende Klemmung des Stromschienenstücks 6 zwischen dem Anlageschenkel 5 und dem Halteabschnitt 9 gewährleistet. Die Position der Klemmfeder 1 kann dadurch weiter fixiert werden, daß in dem Isoliergehäuse eine Nut oder eine Schulter zur Aufnahme bzw. Auflage des Befestigungssteges 13 ausgebildet ist, der an dem dem Halteabschnitt 9 gegenüberliegenden Ende der Ausnehmung 7 aus dem Anlageschenkel 5 freigestanzt und abgebogen istA fixation of the clamping spring 1 to the metal part 2 and the metal part 2 on the clamping spring 1 is now easy to manufacture, that the busbar piece 6 is inserted opposite to the insertion of the electrical conductor 3 to be connected through the recess 7, wherein the busbar piece 6 on the holding portion 9 rests and is pressed by the end 8 of the clamping leg 4 against the holding portion 9. In this case, the end 10 of the busbar piece 6 protrudes through the recess 7 in the plant leg 5 therethrough. As a result, both a good support of the busbar piece 6 on the holding portion 9 and a sufficient clamping of the busbar piece 6 between the plant leg 5 and the holding portion 9 is ensured. The position of the clamping spring 1 can be further fixed in that in the insulating housing, a groove or shoulder for receiving or support of the mounting web 13 is formed, which is at the opposite end of the holding portion 9 of the recess 7 punched out of the plant leg 5 and bent

Bei dem in den Fig. 1 und 2 dargestellten Ausführungsbeispiel weist das Metallteil 2 neben dem Stromschienenstück 6 noch ein Buchsenteil 14 auf. Anstelle des hier dargestellten Buchsenteils 14 kann das Stromschienenstück 6 auch mit einem stiftformigen Steckerteil verbunden sein. Zur Erhöhung der Kontaktkraft des Buchsenteils 14, daß zwei einander gegenüberliegende federnde Schenkel 15, 16 und einen die beiden Schenkel 15, 16 verbindenden Steg 17 aufweist, ist eine Überfeder 18 vorgesehen, die der Geometrie des Buchsenteils 14 angepaßt ist. Das Metallteil 2 insgesamt, d. h. sowohl das Stromschienenstück 6 als auch das Buchsenteil 14, sind aus einem elektrischen gut leitenden Material, insbesondere aus einer Kupferlegierung, hergestellt, während die Überfeder 18 aus einem Material mit einer hohen Federrate, beispielsweise aus Federstahl, hergestellt ist.In the in the Fig. 1 and 2 illustrated embodiment, the metal part 2 in addition to the busbar piece 6 still a socket part 14. Instead of the female part 14 shown here, the busbar piece 6 may also be connected to a pin-shaped connector part. To increase the contact force of the female part 14, that two opposing resilient legs 15, 16 and the two legs 15, 16 connecting web 17, an over-spring 18 is provided, which is adapted to the geometry of the female part 14. The metal part 2 in total, ie both the busbar piece 6 and the female part 14, are made of a highly electrically conductive material, in particular of a copper alloy, while the over-spring 18 is made of a material with a high spring rate, for example of spring steel.

Der Klemmschenkel 4 der Klemmfeder 1 weist einen Knick 19 auf, der in Richtung der Federkraft des Klemmschenkels 4 ausgerichtet ist, so daß durch den Knick 19 ein verbesserter Angriffspunkt für die Spitze eines Betätigungswerkzeugs zum Öffnen der Klemmfeder 1 realisiert ist. Insgesamt ist aus den Figuren ersichtlich, daß bei der erfindungsgemäßen elektrischen Anschluß- oder Verbindungsklemme die Fixierung von Klemmfeder 1 und Metallteil 2 besonders einfach herstellbar ist, wobei gleichzeitig eine kleine und kompakte Bauform der elektrischen Anschluß- oder Verbindungsklemme erreichbar ist.The clamping leg 4 of the clamping spring 1 has a kink 19 which is aligned in the direction of the spring force of the clamping leg 4, so that through the kink 19 an improved point of application for the tip of an actuating tool for opening the clamping spring 1 is realized. Overall, it can be seen from the figures that in the electrical connection or connection terminal according to the invention, the fixation of spring clip 1 and metal part 2 is particularly easy to manufacture, at the same time a small and compact design of the electrical connection or connection terminal is reached.

Claims (9)

  1. Electrical connection or connecting terminal with a clamping spring (1) and with a metal part (2), the clamping spring (1) and the metal part (2) being arranged in an insulating housing, which has a conductor insertion opening for inserting an electrical conductor (3) to be connected, the clamping spring (1) having a clamping limb (4) and a bearing limb (5), and the metal part (2) having at least one busbar piece (6), and the clamping limb (4) and the busbar piece (6) forming a spring-force clamping connection for the electrical conductor (3) to be connected,
    characterized in that
    a cutout (7) for plugging in an electrical conductor (3) to be connected is formed in the bearing limb (5) of the clamping spring (1), in that the clamping limb (4) and the bearing limb (5) of the clamping spring (1) are bent towards one another in such a way that the end (8) of the clamping limb (4) extends through the cutout (7), and in that the clamping spring (1) has a holding section (9), which runs substantially parallel to the plug-in direction of the electrical conductor (3) to be connected and parallel to the busbar piece (6) in such a way that the busbar piece (6) can be plugged in through the cutout (7) in the opposite direction to the plug-in direction of the electrical conductor (3) to be connected, the busbar piece (6) being fixedly clamped between the end (8) of the clamping limb (4) and the holding section (9).
  2. Electrical connection or connecting terminal according to Claim 1, characterized in that the holding section (9) of the clamping spring (1) is stamped free from the bearing limb (5) and is bent back.
  3. Electrical connection or connecting terminal according to Claim 1 or 2, characterized in that the end (10) of the busbar piece (6) is bent back, with the result that the end (10) of the busbar piece (6) together with the end (8) of the clamping limb (4) form an insertion funnel (11) for the electrical conductor (3) to be connected.
  4. Electrical connection or connecting terminal according to one of Claims 1 to 3, characterized in that the bearing limb (5) runs substantially perpendicularly with respect to the plug-in direction of the electrical conductor (3) to be connected, the busbar piece (6) rests on the holding section (9), and the end (10) of the busbar piece (6) protrudes through the cutout (7) and rests on the end (12) of the bearing limb (5).
  5. Electrical connection or connecting terminal according to one of Claims 2 to 4, characterized in that a fixing web (13) is stamped free from the bearing limb (5) and is bent back at that end of the cutout (7) which is opposite the holding section (9).
  6. Electrical connection or connecting terminal according to one of Claims 1 to 5, characterized in that the busbar piece (6) is connected to a plug or socket part (14).
  7. Electrical connection or connecting terminal according to Claim 5, with a socket part (14), which has two mutually opposite limbs (15, 16) and a web (17) connecting the limbs (15, 16), characterized in that the socket part (14) is surrounded by a surrounding spring (18), the surrounding spring (18) being matched substantially to the geometry of the socket part (14).
  8. Electrical connection or connecting terminal according to one of Claims 1 to 7, characterized in that the insulating housing has an actuating opening for inserting an actuating tool, and in that a kink (19) is formed on the clamping limb (4), which kink (19) is oriented in the direction of the spring force of the clamping limb (4), so that the tip of an actuating tool can act on the kink (19) so as to open the clamping spring (1).
  9. Electrical connection or connecting terminal according to one of Claims 1 to 8, characterized in that the metal part (2) is produced from a copper alloy.
EP05018678A 2004-09-15 2005-08-29 Electric connecting terminal Not-in-force EP1638169B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004045025A DE102004045025B3 (en) 2004-09-15 2004-09-15 Electrical connection or connection terminal

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EP1638169A2 EP1638169A2 (en) 2006-03-22
EP1638169A3 EP1638169A3 (en) 2007-02-21
EP1638169B1 true EP1638169B1 (en) 2008-06-11

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US (1) US7083463B2 (en)
EP (1) EP1638169B1 (en)
JP (1) JP4728074B2 (en)
CN (1) CN100499268C (en)
AT (1) ATE398348T1 (en)
DE (2) DE102004045025B3 (en)
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CN100499268C (en) 2009-06-10
JP2006086126A (en) 2006-03-30
EP1638169A3 (en) 2007-02-21
JP4728074B2 (en) 2011-07-20
EP1638169A2 (en) 2006-03-22
DE502005004380D1 (en) 2008-07-24
US20060063419A1 (en) 2006-03-23
ATE398348T1 (en) 2008-07-15
CN1750326A (en) 2006-03-22
DE102004045025B3 (en) 2006-02-16
DK1638169T3 (en) 2008-10-13

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