EP2724420B1 - Electric terminal - Google Patents

Electric terminal Download PDF

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Publication number
EP2724420B1
EP2724420B1 EP12737200.1A EP12737200A EP2724420B1 EP 2724420 B1 EP2724420 B1 EP 2724420B1 EP 12737200 A EP12737200 A EP 12737200A EP 2724420 B1 EP2724420 B1 EP 2724420B1
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EP
European Patent Office
Prior art keywords
clamping
chamber
current bar
housing
clamping springs
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.)
Active
Application number
EP12737200.1A
Other languages
German (de)
French (fr)
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EP2724420A1 (en
Inventor
Ralph Hoppmann
Michael Strato
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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Publication date
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Publication of EP2724420A1 publication Critical patent/EP2724420A1/en
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Publication of EP2724420B1 publication Critical patent/EP2724420B1/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185Clamped 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
    • H01R4/48275Clamped 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 with an opening in the housing for insertion of a release tool
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627Snap or like fastening
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/22Bases, e.g. strip, block, panel
    • H01R9/24Terminal blocks
    • H01R9/26Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49204Contact or terminal manufacturing
    • Y10T29/49208Contact or terminal manufacturing by assembling plural parts

Definitions

  • the invention relates to an electrical terminal with a housing, with two clamping springs and at least one current bar, wherein in the housing a chamber for receiving the clamping springs and at least one end of the at least one current bar and at least one conductor insertion opening for the introduction of two conductors are formed, and wherein the clamping springs each having a clamping leg, a plant leg and the two legs interconnecting arcuate back, wherein the clamping legs each form a terminal point for a connected stripped conductor with the current bar.
  • the invention also relates to a method for mounting a corresponding electrical terminal.
  • Electrical terminals are known in a variety of embodiments.
  • the terminals may be formed as a so-called print terminal, for example, for connection to another conductor as a terminal block or for connecting an electrical conductor to a circuit board.
  • electrical terminals can also be part of electrical devices such as circuit breakers, residual current circuit breakers or surge protectors and serve to connect the conductors to be connected to the arranged inside the device components.
  • both loop-shaped clamping springs so-called tension spring terminals, as well as U-shaped or V-shaped clamping springs, so-called leg springs used.
  • tension spring terminals rigid conductors or conductors provided with a wire end sleeve can be inserted directly, ie without the clamping point having to be opened beforehand with a tool. Therefore, such terminals are also referred to as direct plug-in terminals.
  • loop-shaped tension springs - according to their name - the conductor to be connected pulled by the clamping leg against a busbar.
  • U-shaped or V-shaped clamping springs the conductor to be connected from Clamping leg pressed against the current bar or a portion of a metal part.
  • an electrical terminal with a substantially V-shaped clamping spring and a metal part.
  • the clamping spring acts as a compression spring which presses a conductor to be connected by the spring force of the clamping spring against acting as a current bar bent portion of the metal part and thereby produces the electrically conductive contact between the conductor and the current bar or the metal part.
  • an electrical terminal is known as part of a service switching device in which two electrical conductors can be connected to a current bar within a chamber.
  • a double spring is arranged with two clamping legs within a clamping frame, wherein the two clamping legs each forms a clamping point for a connected stripped conductor with a bent from the clamping frame clamping piece.
  • a current bar is formed, via which the electrical connection between the clamping frame and a device arranged in the interior of the service switching device is produced.
  • a special double spring is required as a clamping spring.
  • the assembly of the clamping frame with the molded-in current bar and inserted in the clamping frame double spring is expensive.
  • the EP 1 734 551 A1 discloses a plug-in device for an electrical switching device.
  • the plug-in device has a housing, two V-shaped clamping springs and arranged between the two arranged in a plane clamping springs plug contact.
  • the two mirror-symmetrical to the plug contact opposite clamping springs are arranged directly within a chamber formed in the housing. Due to the opposing arrangement of the two clamping springs in a plane, the housing of the known plug-in device in the plane perpendicular to the longitudinal extent of the plug contact must have relatively large dimensions.
  • the maximum cross section of a conductor to be connected depends on whether the conductor has a wire end ferrule or not.
  • the invention is therefore based on the object, an input described electrical terminal in such a way that it is as simple as possible, with a connection of rigid conductors or conductors provided with a wire end directly, i. without the clamping point having to be opened beforehand with a tool, it should be possible.
  • the maximum cross section of the conductors to be connected should be independent of whether the conductor has a wire end ferrule or not.
  • the electrical terminal according to the invention initially differs from the distributor terminals known from practice in that, instead of two tension spring terminals, two separate leg springs each having a clamping leg and a bearing leg are used as clamping springs become. In addition, the two clamping springs are neither placed directly on the end of the current bar nor inserted in a clamping frame.
  • an additional spring receptacle which preferably consists of plastic, is provided, on which the two in the longitudinal extent of the current bar juxtaposed clamping springs are attached.
  • the spring retainer in this case has a partition which is located between the two clamping springs when they are mounted.
  • the spring receptacle serves not only for mounting the two clamping springs in the chamber of the housing of the electrical connection terminal, but also to ensure a defined distance between the two clamping springs. This ensures that two provided for the electrical terminal conductor with maximum diameter can still be connected even if both conductors have a wire end ferrule. The space required for the ferrules, in particular for the plastic collar, between two adjacent conductors to be connected is thus ensured by the partition wall of the spring receiver.
  • the maximum permissible conductor cross-section of a flexible conductor with a conductor end sleeve is less than the maximum permissible cross-section of a rigid conductor.
  • the electrical connection terminal has two clamping springs and at least one current bar.
  • the electrical connection terminal may also have more than two clamping springs, for example four or eight clamping springs, in particular if the electrical connection terminal is a terminal block which generally has at least one chamber on both connection sides.
  • a simple feed-through terminal which in each case has a chamber on both connection sides, thus has a total of four clamping springs - two clamping springs in each chamber.
  • the spring retainer on both sides of the partition on a plurality of projections which serve to hold the clamping springs.
  • a projection within and two projections outside the clamping spring are arranged on both sides of the partition wall.
  • the two projections arranged within the clamping spring are thus at least partially looped around each by a clamping spring, wherein these projections are each formed and arranged on the partition that they serve as a stop for each clamping leg when deflecting the clamping legs.
  • the spring receptacle is locked with the clamping springs in the chamber of the housing, including in the chamber and on the spring retainer mutually corresponding locking devices are formed.
  • the locking devices are arranged in the region between the two legs of the clamping springs, so that do not increase the dimensions of the spring retainer and the chamber by the locking devices.
  • the latching devices are preferably realized by two latching pins arranged within the chamber and two corresponding openings formed in the spring receptacle, so that the spring receptacle can be easily fitted with the openings on the latching pins in the chamber.
  • At least one latching element for latching the current bar in the housing is formed according to a preferred embodiment of the invention within the chamber of the housing, for which purpose the current bar has a corresponding latching recess. This ensures that not only the clamping springs can be securely attached to the spring receptacle, but also that the spring receptacle and the current bar is held securely in the housing.
  • the assembly is carried out such that first the two clamping springs are arranged on each side of the partition of the spring receiving, then the spring retainer with the attached two clamping springs inserted into the chamber and then the current bar as a separate component in the chamber of the housing is used, that form the clamping legs of the two clamping springs with the current bar each a terminal point for a connected stripped conductor.
  • the spring receptacle is first attached to the current bar, for which purpose mutually corresponding latching devices are formed on the current bar and on the spring receptacle. Only then does the arrangement of the two clamping springs on each side of the partition of the spring receiving such that the clamping legs each form a terminal point for a conductor with the current bar. Finally, the preassembled subassembly, consisting of the two clamping springs, the current bar and the spring receiver, is inserted into the chamber of the housing.
  • the spring receptacle is preferably latched when inserted into the housing in the chamber, including within the chamber, two locking pins and in the spring retainer two corresponding to the locking pin openings are formed.
  • Both the spring receiver and the clamping springs are preferably designed so that they can be used for both types of assembly described above. Moreover, since the spring receptacle is preferably formed symmetrically to the running through the partition center plane, the same spring receptacle can be used on both sides of the terminal in terminal blocks, so that reduces the number of required components.
  • FIG. 1 an electrical terminal 1 is shown, which is designed as a terminal block.
  • the electrical terminal 1 has a housing 2 made of plastic, wherein in the housing 2 on both sides of the terminal 1 each two clamping springs 3, 3 'and a clamping springs 3, 3' interconnecting current bar 4 are arranged.
  • two chambers 5 are formed in the housing 2 of the terminal block. Via a conductor insertion opening 6, in which two electrical conductors can be inserted, the conductors to be connected can each be inserted into a chamber 5.
  • the clamping springs 3, 3 ' are substantially V-shaped, so that it is leg springs, each having a clamping leg 7, a plant leg 8 and the two legs 7, 8 interconnecting arcuate back 9 ,
  • the clamping springs 3, 3 'in each case together with a portion of the current bar 4 form a spring terminal connection, in which the clamping legs 7 with the current bar 4 each form a terminal point for a stripped conductor to be connected.
  • a spring receptacle 10 is disposed within the chamber 5 of the housing 2, which has a partition wall 11, the main extension extends in the direction of extension of the current bar 4, ie their surface normal to the longitudinal extent of in Fig. 1 shown electrical terminal 1 runs.
  • the exact structure and design of the spring retainer 10 are in particular with reference to the perspective views in Fig. 2 recognizable.
  • the spring receptacle 10 has on both sides of the partition wall 11 a plurality of projections 12, 13, 14, which serve for holding the clamping springs 3, 3 'on one side of the partition wall 11. How out Fig. 3 can be seen, the approximately rib-like projection 12 with mounted clamping springs 3, 3 'within the clamping springs 3, 3', that is arranged between the clamping leg 7 and the plant leg 8, while the two bar-shaped projections 13, 14 outside of the clamping springs 3, 3 ' are arranged.
  • the projections 13, 14 are arranged and spaced from each other so that the clamping leg 7 and the abutment leg 8 are slightly from its rest position, inwardly deflected when a clamping springs 3, 3 'is attached to the spring retainer 10.
  • the clamping spring 3, 3 'is thus held by the spring force between the two projections 13, 14.
  • the clamping spring 3 remains in its predetermined position, one end 15 of the projection 13 is arranged and formed such that the clamping spring 3 with its arcuate back 9, the end 15 at least partially surrounds or rests on the end 15.
  • the rib-like projection 12 has a portion 16 whose contour is adapted to the contour of the clamping leg 7 and which is arranged on the spring seat 10, that the portion 16 of the projection 12 during deflection of the clamping leg 7 serves as a stop for this.
  • the projection 12 thus serves not only for fixing the position of the clamping spring 3, but at the same time as an overstretch protection for the clamping spring.
  • both the locking pin 17 and the openings 18 are arranged such that they are in the mounted state of the spring retainer 10 between the two legs 7, 8 of the clamping springs 3, 3 '.
  • the arrangement and design of the locking pin 17 and the openings 18 thus does not lead to an increase in the dimensions of the chamber 5 and the spring retainer 10.
  • the two openings 18 are formed in the spring retainer 10 in the region of the projections 12 so that a deliberate deflection of the clamping leg 7 when connecting an electrical conductor by the locking pin 17 is not hindered.
  • the assembly is carried out such that initially the two clamping springs 3, 3 'are attached to both sides of the partition 11 on the spring seat 10 ( Fig. 3 ). Subsequently, the assembly of the two clamping springs 3, 3 'and the spring retainer 10 is inserted into the chamber 5 in the housing 2, for which purpose the spring retainer 10 is plugged with its openings 18 on the locking pin 17 ( Fig. 5 ). Thereafter, the current bar 4 is inserted into the chamber 5, wherein the clamping legs 7 of the two clamping springs 3, 3 'each form a clamping point for a connected stripped conductor with the current bar 4.
  • the Fig. 7 to 10 show a second embodiment of an electrical terminal 1, which are opposite to in the Fig. 3 to 6 illustrated embodiment differs in particular by a slightly different shaped current bar 4. About that points in the Fig. 7 to 10 shown terminal 1 on a slightly different mounting sequence than that which has been previously described. In contrast, there are no differences between both the used clamping springs 3, 3 'and in particular between the inserted spring housings 10th
  • a spring receptacle 10 according to Fig. 2 attached to the current bar 4 ( Fig. 7 ).
  • a plurality of mutually corresponding locking devices are formed on the current bar 4 and the spring retainer 10.
  • a latching projection 21 and a latching recess 24 are formed, which cooperate with a corresponding latching recess 22 and a latching projection 23 respectively on one end face of the spring receptacle 10.
  • the current bar 4 still has a vertically bent, fork-shaped latching element 25, which surrounds a formed on the spring seat 10 web 26 in the mounted state.
  • the locking devices are all designed and arranged so that they are neither an insertion of the spring holder 10 without current bar 4 ( Fig. 5 ) is still an insertion of the spring holder 10 with current bar 4 ( Fig. 9 ) hinder in the chamber 5 in the housing 2.
  • terminal 1 is a closure of the chambers 5 by means of a lid or a separate side wall is not provided, but nevertheless also possible in principle.
  • a closure of the chambers 5 is therefore not necessary in this embodiment, since of the current bar 4 two side walls 28, 29 are bent so that they as Serve limit for the conductor end to be connected, so that an inserted conductor can not be pushed laterally out of the nip by the clamping leg 7.
  • the spring receptacle 10 is symmetrical to the median plane, ie to the dividing wall 11, so that the same spring receptacle 10 can be mounted on both connection sides of the terminal block 1.
  • each still two actuation openings 30 are formed, in each of which an actuation lever 31 is arranged.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Description

Die Erfindung betrifft eine elektrische Anschlussklemme mit einem Gehäuse, mit zwei Klemmfedern und mit mindestens einem Strombalken, wobei im Gehäuse eine Kammer zur Aufnahme der Klemmfedern und zumindest eines Endes des mindestens einen Strombalkens und mindestens eine Leitereinführungsöffnung zur Einführung von zwei Leitern ausgebildet sind, und wobei die Klemmfedern jeweils einen Klemmschenkel, einen Anlageschenkel und einen die beiden Schenkel miteinander verbindenden bogenförmigen Rücken aufweisen, wobei die Klemmschenkel mit dem Strombalken jeweils eine Klemmstelle für einen anzuschließenden abisolierten Leiter bilden. Daneben betrifft die Erfindung noch ein Verfahren zur Montage einer entsprechenden elektrischen Anschlussklemme.The invention relates to an electrical terminal with a housing, with two clamping springs and at least one current bar, wherein in the housing a chamber for receiving the clamping springs and at least one end of the at least one current bar and at least one conductor insertion opening for the introduction of two conductors are formed, and wherein the clamping springs each having a clamping leg, a plant leg and the two legs interconnecting arcuate back, wherein the clamping legs each form a terminal point for a connected stripped conductor with the current bar. In addition, the invention also relates to a method for mounting a corresponding electrical terminal.

Elektrische Anschlussklemmen sind in einer Vielzahl von Ausführungsformen bekannt. Die Anschlussklemmen können dabei beispielsweise zur Verbindung mit einem weiteren Leiter als Reihenklemme oder zum Anschluss eines elektrischen Leiters an eine Leiterplatte als sogenannte Printklemme ausgebildet sein. Darüber hinaus können elektrische Anschlussklemmen jedoch auch Teil elektrischer Geräte wie beispielsweise Leitungsschutzschalter, Fehlerstromschutzschalter oder Überspannungsschutzschalter sein und zur Verbindung der anzuschließenden Leiter mit den im Inneren der Geräte angeordneten Bauteile dienen.Electrical terminals are known in a variety of embodiments. The terminals may be formed as a so-called print terminal, for example, for connection to another conductor as a terminal block or for connecting an electrical conductor to a circuit board. In addition, however, electrical terminals can also be part of electrical devices such as circuit breakers, residual current circuit breakers or surge protectors and serve to connect the conductors to be connected to the arranged inside the device components.

Als Klemmfedern werden sowohl schlaufenförmige Klemmfedern, sogenannte Zugfederklemmen, als auch U-förmige oder V-förmige Klemmfedern, sogenannte Schenkelfedern, eingesetzt. In Schenkelfedern können starre Leiter oder mit einer Adernendhülse versehene Leiter direkt, d. h. ohne das die Klemmstelle vorher mit einem Werkzeug geöffnet werden muß, eingesteckt werden. Daher werden derartige Anschlussklemmen auch als Direktsteck-Anschlussklemmen bezeichnet. Bei den bekannten schlaufenförmigen Zugfedern wird - entsprechend ihrem Namen - der anzuschließende Leiter vom Klemmschenkel gegen eine Stromschiene gezogen. Im Unterschied dazu wird bei U-förmige oder V-förmige Klemmfedern der anzuschließende Leiter vom Klemmschenkel gegen den Strombalken bzw. einen Bereich eines Metallteils gedrückt.As clamping springs, both loop-shaped clamping springs, so-called tension spring terminals, as well as U-shaped or V-shaped clamping springs, so-called leg springs used. In torsion springs, rigid conductors or conductors provided with a wire end sleeve can be inserted directly, ie without the clamping point having to be opened beforehand with a tool. Therefore, such terminals are also referred to as direct plug-in terminals. In the known loop-shaped tension springs - according to their name - the conductor to be connected pulled by the clamping leg against a busbar. In contrast, in U-shaped or V-shaped clamping springs, the conductor to be connected from Clamping leg pressed against the current bar or a portion of a metal part.

Aus der DE 10 2008 039 232 A1 ist eine elektrische Anschlussklemme mit einer im Wesentlichen V-förmige Klemmfeder und einem Metallteil bekannt. Bei dieser Anschlussklemme wirkt die Klemmfeder als Druckfeder, die einen anzuschließenden Leiter durch die Federkraft der Klemmfeder gegen einen als Strombalken wirkenden abgebogenen Abschnitt des Metallteils drückt und dadurch den elektrisch leitenden Kontakt zwischen dem Leiter und dem Strombalken bzw. dem Metallteil herstellt.From the DE 10 2008 039 232 A1 is known an electrical terminal with a substantially V-shaped clamping spring and a metal part. In this terminal, the clamping spring acts as a compression spring which presses a conductor to be connected by the spring force of the clamping spring against acting as a current bar bent portion of the metal part and thereby produces the electrically conductive contact between the conductor and the current bar or the metal part.

In der Regel sind in einer im Gehäuse einer elektrischen Anschlussklemme ausgebildeten Kammer immer nur eine Klemmfeder und ein Strombalken bzw. das Ende eines Strombalkens angeordnet, so dass durch die Leitereinführungsöffnung auch nur ein elektrischer Leiter zum Einstecken in die Klemmstelle eingeführt werden kann. Daneben gibt es jedoch auch elektrische Anschlussklemmen, die einen so genannten Doppelanschluss aufweisen, bei denen nämlich innerhalb einer Kammer zwei Klemmfedern zum Anschließen zwei Leiter nebeneinander angeordnet sind. In der Praxis werden derartige Anschlussklemmen mit Doppelanschluss beispielsweise als Verteilerklemmen eingesetzt, da sie durch den Doppelanschluss die Möglichkeit einer hohen Verdrahtungsdichte auf engstem Raum bieten (vgl. Prospekt "Reihenklemmen CLIPLINE 2005", Seite 153 der Phoenix Comtact GmbH & Co. KG ). Bei dieser bekannten Anschlussklemme sind innerhalb der Kammer zwei Zugfederklemmen angeordnet, mit denen zwei elektrische Leiter an das gleiche Potential bzw. bei zwei im Gehäuse ausgebildeten Kammern vier Leiter an ein Potential angeschlossen werden können.As a rule, only one clamping spring and one current bar or the end of a current bar are arranged in a housing formed in the housing of an electrical terminal, so that only one electrical conductor can be inserted for insertion into the terminal point through the conductor insertion opening. In addition, however, there are also electrical connection terminals, which have a so-called double connection, in which namely two clamping springs are arranged for connecting two conductors next to each other within a chamber. In practice, such terminals are used with double connection, for example, as distribution terminals, since they offer the possibility of a high wiring density in the smallest space by the double connection (see. Brochure "Terminal Blocks CLIPLINE 2005", page 153 of Phoenix Comtact GmbH & Co. KG ). In this known terminal two Zugfederklemmen are arranged within the chamber, with which two electrical conductors to the same potential or with two chambers formed in the housing four conductors can be connected to a potential.

Auch aus der DE 10 2009 048 932 A1 ist eine elektrische Anschlussklemme als Teil eines Installationsschaltgeräts bekannt, bei der innerhalb einer Kammer zwei elektrische Leiter an einen Strombalken angeschlossen werden können. Dazu ist eine Doppelfeder mit zwei Klemmschenkeln innerhalb eines Klemmrahmens angeordnet, wobei die beiden Klemmschenkel jeweils mit einem vom Klemmrahmen abgebogenen Klemmstück eine Klemmstelle für einen anzuschließenden abisolierten Leiter bildet. An der der ersten Schmalseite mit dem Klemmstück gegenüberliegenden zweiten Schmalseite des Klemmrahmens ist darüber hinaus ein Strombalken angeformt, über den die elektrische Verbindung zwischen dem Klemmrahmen und einem im Inneren des Installationsschaltgeräts angeordneten Bauelement hergestellt wird. Nachteilig ist hierbei jedoch, dass als Klemmfeder eine spezielle Doppelfeder benötigt wird. Darüber hinaus ist die Montage des Klemmrahmens mit dem daran angeformten Strombalken und der in dem Klemmrahmen eingesteckten Doppelfeder aufwendig.Also from the DE 10 2009 048 932 A1 an electrical terminal is known as part of a service switching device in which two electrical conductors can be connected to a current bar within a chamber. For this purpose, a double spring is arranged with two clamping legs within a clamping frame, wherein the two clamping legs each forms a clamping point for a connected stripped conductor with a bent from the clamping frame clamping piece. At the first narrow side with the clamping piece opposite the second narrow side of the clamping frame In addition, a current bar is formed, via which the electrical connection between the clamping frame and a device arranged in the interior of the service switching device is produced. The disadvantage here, however, that a special double spring is required as a clamping spring. In addition, the assembly of the clamping frame with the molded-in current bar and inserted in the clamping frame double spring is expensive.

Die EP 1 734 551 A1 offenbart eine Steckvorrichtung für eine elektrische Schaltvorrichtung. Die Steckvorrichtung weist dabei ein Gehäuse, zwei V-förmige Klemmfedern und einen zwischen den beiden, in einer Ebene angeordneten Klemmfedern angeordneten Steckkontakt auf. Die beiden spiegelsymmetrisch zum Steckkontakt einander gegenüberliegenden Klemmfedern sind dabei direkt innerhalb einer im Gehäuse ausgebildeten Kammer angeordnet. Durch die einander gegenüberliegende Anordnung der beiden Klemmfedern in einer Ebene muss das Gehäuse der bekannten Steckvorrichtung in der Ebene senkrecht zur Längserstreckung des Steckkontakts relativ große Abmessungen aufweisen. Darüber hinaus ist der maximale Querschnitt eines anzuschließenden Leiters davon abhängig, ob der Leiter eine Aderendhülse aufweist oder nicht.The EP 1 734 551 A1 discloses a plug-in device for an electrical switching device. The plug-in device has a housing, two V-shaped clamping springs and arranged between the two arranged in a plane clamping springs plug contact. The two mirror-symmetrical to the plug contact opposite clamping springs are arranged directly within a chamber formed in the housing. Due to the opposing arrangement of the two clamping springs in a plane, the housing of the known plug-in device in the plane perpendicular to the longitudinal extent of the plug contact must have relatively large dimensions. In addition, the maximum cross section of a conductor to be connected depends on whether the conductor has a wire end ferrule or not.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Eingangs beschriebene elektrische Anschlussklemme derart weiterzuentwickeln, dass sie möglichst einfach aufgebaut ist, wobei ein Anschluss von starren Leitern oder mit einer Adernendhülse versehenen Leitern direkt, d.h. ohne dass die Klemmstelle vorher mit einem Werkzeug geöffnet werden muss, möglich sein soll. Darüber soll der maximale Querschnitt der anzuschließenden Leiter unabhängig davon sein, ob der Leiter eine Aderendhülse aufweist oder nicht.The invention is therefore based on the object, an input described electrical terminal in such a way that it is as simple as possible, with a connection of rigid conductors or conductors provided with a wire end directly, i. without the clamping point having to be opened beforehand with a tool, it should be possible. In addition, the maximum cross section of the conductors to be connected should be independent of whether the conductor has a wire end ferrule or not.

Diese Aufgabe ist bei der eingangs beschriebenen elektrischen Anschlussklemme mit den Merkmalen des Patentanspruch 1 gelöst.This object is achieved in the electrical terminal described above with the features of claim 1.

Die erfindungsgemäße elektrische Anschlussklemme unterscheidet sich zunächst dadurch von den aus der Praxis bekannten Verteilerklemmen, dass als Klemmfedern anstelle zweier Zugfederklemmen zwei separate Schenkelfedern mit jeweils einem Klemmschenkel und einem Anlageschenkel verwendet werden. Darüber hinaus sind die beiden Klemmfedern weder direkt auf das Ende des Strombalkens aufgesetzt noch in einem Klemmrahmen eingesetzt. Bei der erfindungsgemäßen elektrischen Anschlussklemme ist vielmehr eine zusätzliche Federaufnahme, die vorzugsweise aus Kunststoff besteht, vorgesehen, an der die beiden in Längserstreckung des Strombalkens nebeneinander angeordneten Klemmfedern befestigt sind. Die Federaufnahme weist dabei eine Trennwand auf, die sich zwischen den beiden Klemmfedern befindet, wenn diese montiert sind.The electrical terminal according to the invention initially differs from the distributor terminals known from practice in that, instead of two tension spring terminals, two separate leg springs each having a clamping leg and a bearing leg are used as clamping springs become. In addition, the two clamping springs are neither placed directly on the end of the current bar nor inserted in a clamping frame. In the electrical terminal according to the invention rather an additional spring receptacle, which preferably consists of plastic, is provided, on which the two in the longitudinal extent of the current bar juxtaposed clamping springs are attached. The spring retainer in this case has a partition which is located between the two clamping springs when they are mounted.

Die Federaufnahme dient nicht nur zur Montage der beiden Klemmfedern in der Kammer des Gehäuses der elektrischen Anschlussklemme, sondern auch dazu, einen definierten Abstand zwischen den beiden Klemmfedern zu gewährleisten. Hierdurch wird sichergestellt, dass zwei für die elektrische Anschlussklemme vorgesehene Leiter mit maximalem Durchmesser auch dann noch angeschlossen werden können, wenn beide Leiter eine Aderendhülse aufweisen. Der für die Aderendhülsen, insbesondere für deren Kunststoffkragen, benötigte Platz zwischen zwei benachbarten anzuschließenden Leitern, wird somit durch die Trennwand der Federaufnahme gewährleistet. Im Unterschied dazu ist bei den aus der Praxis bekannten Verteilerklemmen mit einem durch zwei Zugfederklemmen gebildeten Doppelanschluss der maximal zulässige Leiterquerschnitt eines flexiblen Leiters mit Adernendhülse geringer als der maximal zulässige Querschnitt eines starren Leiters.The spring receptacle serves not only for mounting the two clamping springs in the chamber of the housing of the electrical connection terminal, but also to ensure a defined distance between the two clamping springs. This ensures that two provided for the electrical terminal conductor with maximum diameter can still be connected even if both conductors have a wire end ferrule. The space required for the ferrules, in particular for the plastic collar, between two adjacent conductors to be connected is thus ensured by the partition wall of the spring receiver. In contrast, in the case of the distributor terminals known from practice with a double connection formed by two spring-cage terminals, the maximum permissible conductor cross-section of a flexible conductor with a conductor end sleeve is less than the maximum permissible cross-section of a rigid conductor.

Eingangs ist ausgeführt worden, dass die elektrische Anschlussklemme zwei Klemmfedern und mindestens einen Strombalken aufweist. Dadurch ist nicht ausgeschlossen, dass die elektrische Anschlussklemme auch mehr als zwei Klemmfedern, beispielsweise vier oder acht Klemmfedern aufweisen kann, insbesondere dann, wenn es sich bei der elektrischen Anschlussklemme um eine Reihenklemme handelt, die in der Regel auf beiden Anschlussseiten mindestens eine Kammer aufweisen. Eine einfache Durchgangsklemme, die auf beiden Anschlussseiten jeweils eine Kammer aufweist, weist somit insgesamt vier Klemmfedern - zwei Klemmfedern in jeder Kammer - auf. Selbstverständlich ist es auch möglich, dass nur auf einer Seite einer derartigen Durchgangsklemme eine Kammer mit zwei Klemmfedern vorgesehen ist, während auf der anderen Seite lediglich eine Klemmfeder in der Kammer angeordnet ist.Initially, it has been stated that the electrical connection terminal has two clamping springs and at least one current bar. As a result, it is not excluded that the electrical connection terminal may also have more than two clamping springs, for example four or eight clamping springs, in particular if the electrical connection terminal is a terminal block which generally has at least one chamber on both connection sides. A simple feed-through terminal, which in each case has a chamber on both connection sides, thus has a total of four clamping springs - two clamping springs in each chamber. Of course, it is also possible that only one side of such a through terminal a chamber with two clamping springs is provided, while on the other side only a clamping spring is arranged in the chamber.

Darüber hinaus ist es grundsätzlich auch möglich, dass innerhalb einer Kammer nicht nur zwei Klemmfedern, sondern auch die Enden zweier Strombalken angeordnet sind, so dass zwei elektrische Leiter an zwei unterschiedliche Potentiale angeschlossen werden können. Unabhängig davon wird in der nachfolgenden Beschreibung der Erfindung jedoch stets davon ausgegangen, dass in einer Kammer zwar zwei Klemmfedern jedoch nur ein Strombalken bzw. das Ende eines Strombalkens angeordnet ist, so dass zwei an die beiden Klemmfedern angeschlossene Leiter mit dem selben Strombalken und damit auch mit dem selben Potential verbunden werden.In addition, it is in principle also possible that within a chamber not only two clamping springs, but also the ends of two current bars are arranged, so that two electrical conductors can be connected to two different potentials. Regardless of this, however, it is always assumed in the following description of the invention that in a chamber, however, only one current bar or the end of a current bar is arranged, so that two connected to the two clamping springs conductor with the same current bar and thus also be connected to the same potential.

Gemäß der Erfindung weist die Federaufnahme, auf beiden Seiten der Trennwand mehrere Vorsprünge auf, die zur Halterung der Klemmfedern dienen. Vorzugsweise sind dabei auf beiden Seiten der Trennwand jeweils ein Vorsprung innerhalb und zwei Vorsprünge außerhalb der Klemmfeder angeordnet. Die beiden innerhalb der Klemmfeder angeordneten Vorsprünge werden somit zumindest teilweise jeweils von einer Klemmfeder umschlungen, wobei diese Vorsprünge jeweils derart ausgebildet und an der Trennwand angeordnet sind, dass sie beim Auslenken der Klemmschenkel als Anschlag für jeweils einen Klemmschenkel dienen.According to the invention, the spring retainer, on both sides of the partition on a plurality of projections which serve to hold the clamping springs. Preferably, a projection within and two projections outside the clamping spring are arranged on both sides of the partition wall. The two projections arranged within the clamping spring are thus at least partially looped around each by a clamping spring, wherein these projections are each formed and arranged on the partition that they serve as a stop for each clamping leg when deflecting the clamping legs.

Dieser, im Bereich zwischen den beiden Schenkeln einer Klemmfeder, von der Trennwand senkrecht abstehende Vorsprung weist ein Ende auf, das im montierten Zustand der Klemmfedern an der Federaufnahme, im Bereich des bogenförmigen Rückens der Klemmfedern angeordnet ist, so dass der bogenförmige Rücken der Klemmfeder zumindest bereichsweise an dem Ende des Vorsprungs an- bzw. aufliegt. Die beiden anderen Vorsprünge sind derart im Bereich des Klemmschenkels bzw. des Anlageschenkels angeordnet, dass die Klemmfeder zwischen die beiden Vorsprünge geklemmt ist, wenn der Klemmschenkel und der Anlageschenkel bei der Montage geringfügig zusammengedrückt werden. Die Klemmfedern können dadurch einfach an der Federaufnahme montiert werden, wobei die Klemmfedern aufgrund ihrer Federkraft an der Federaufnahme, gehalten werden.This, in the region between the two legs of a clamping spring, vertically projecting from the partition projection has an end which is arranged in the mounted state of the clamping springs on the spring receiver, in the region of the arcuate back of the clamping springs, so that the arcuate back of the clamping spring at least partially on the end of the projection on or rests. The other two projections are arranged in the region of the clamping leg or the abutment leg such that the clamping spring is clamped between the two projections when the clamping leg and the plant leg are slightly compressed during assembly. The clamping springs can thereby be easily mounted on the spring receptacle, wherein the clamping springs are held on the spring seat, due to their spring force.

Gemäß einer weiteren vorteilhaften Ausgestaltung der erfindungsgemäßen elektrischen Anschlussklemme ist die Federaufnahme, mit den Klemmfedern in der Kammer des Gehäuses verrastet, wozu in der Kammer und an der Federaufnahme zueinander korrespondierende Rastvorrichtungen ausgebildet sind. Die Rastvorrichtungen sind dabei im Bereich zwischen den beiden Schenkeln der Klemmfedern angeordnet, so dass sich durch die Rastvorrichtungen die Abmessungen der Federaufnahme und der Kammer nicht vergrößern. Die Rastvorrichtungen werden vorzugsweise durch zwei innerhalb der Kammer angeordnete Rastzapfen und zwei in der Federaufnahme ausgebildete korrespondierende Öffnungen realisiert, so dass die Federaufnahme einfach mit den Öffnungen auf die Rastzapfen in der Kammer aufgesteckt werden kann.According to a further advantageous embodiment of the electrical terminal according to the invention, the spring receptacle is locked with the clamping springs in the chamber of the housing, including in the chamber and on the spring retainer mutually corresponding locking devices are formed. The locking devices are arranged in the region between the two legs of the clamping springs, so that do not increase the dimensions of the spring retainer and the chamber by the locking devices. The latching devices are preferably realized by two latching pins arranged within the chamber and two corresponding openings formed in the spring receptacle, so that the spring receptacle can be easily fitted with the openings on the latching pins in the chamber.

Neben Rastvorrichtungen zur Halterung und Verrastung der Federaufnahme ist gemäß einer bevorzugten Ausgestaltung der Erfindung innerhalb der Kammer des Gehäuses auch mindestens ein Rastelement zur Verrastung des Strombalkens im Gehäuse ausgebildet, wozu der Strombalken eine korrespondierende Rastausnehmung aufweist. Dadurch ist sichergestellt, dass nicht nur die Klemmfedern sicher an der Federaufnahme befestigt werden können, sondern dass auch die Federaufnahme und der Strombalken sicher im Gehäuse gehalten ist.In addition to latching devices for holding and latching of the spring receiver, at least one latching element for latching the current bar in the housing is formed according to a preferred embodiment of the invention within the chamber of the housing, for which purpose the current bar has a corresponding latching recess. This ensures that not only the clamping springs can be securely attached to the spring receptacle, but also that the spring receptacle and the current bar is held securely in the housing.

Je nach Ausgestaltung des Gehäuses bzw. der im Gehäuse ausgebildeten Kammer und insbesondere je nach Ausgestaltung des Strombalkens gibt es unterschiedliche Möglichkeiten der Montage der elektrischen Anschlussklemme. Gemäß einer ersten Ausgestaltung erfolgt die Montage dabei derart, dass zunächst die beiden Klemmfedern auf jeweils einer Seite der Trennwand der Federaufnahme angeordnet werden, anschließend die Federaufnahme mit den daran befestigten beiden Klemmfedern in die Kammer eingesetzt und danach der Strombalken als separates Bauteil derart in die Kammer des Gehäuses eingesetzt wird, dass die Klemmschenkel der beiden Klemmfedern mit dem Strombalken jeweils eine Klemmstelle für einen anzuschließenden abisolierten Leiter bilden.Depending on the configuration of the housing or the chamber formed in the housing and in particular depending on the configuration of the current bar, there are different ways of mounting the electrical terminal. According to a first embodiment, the assembly is carried out such that first the two clamping springs are arranged on each side of the partition of the spring receiving, then the spring retainer with the attached two clamping springs inserted into the chamber and then the current bar as a separate component in the chamber of the housing is used, that form the clamping legs of the two clamping springs with the current bar each a terminal point for a connected stripped conductor.

Gemäß einem alternativen Montageansatz wird zunächst die Federaufnahme auf den Strombalken aufgesteckt, wozu am Strombalken und an der Federaufnahme zueinander korrespondierende Rastvorrichtungen ausgebildet sind. Erst danach erfolgt die Anordnung der beiden Klemmfedern auf jeweils einer Seite der Trennwand der Federaufnahme derart, dass die Klemmschenkel mit dem Strombalken jeweils eine Klemmstelle für einen Leiter bilden. Als letztes wird die vormontierte Baugruppe, bestehend aus den beiden Klemmfedern dem Strombalken und der Federaufnahme, in die Kammer des Gehäuses eingesetzt.According to an alternative mounting approach, the spring receptacle is first attached to the current bar, for which purpose mutually corresponding latching devices are formed on the current bar and on the spring receptacle. Only then does the arrangement of the two clamping springs on each side of the partition of the spring receiving such that the clamping legs each form a terminal point for a conductor with the current bar. Finally, the preassembled subassembly, consisting of the two clamping springs, the current bar and the spring receiver, is inserted into the chamber of the housing.

Unabhängig davon, welche der beiden zuvor beschriebenen Verfahren zur Montage der elektrischen Anschlussklemme vorgesehen ist, so wird die Federaufnahme vorzugsweise beim Einsetzen in das Gehäuse in der Kammer verrastet, wozu innerhalb der Kammer zwei Rastzapfen und in der Federaufnahme zwei zu den Rastzapfen korrespondierende Öffnungen ausgebildet sind.Regardless of which of the two methods described above for mounting the electrical terminal is provided, the spring receptacle is preferably latched when inserted into the housing in the chamber, including within the chamber, two locking pins and in the spring retainer two corresponding to the locking pin openings are formed.

Sowohl die Federaufnahme als auch die Klemmfedern sind vorzugsweise so ausgebildet, dass sie für beide zuvor beschriebenen Montagearten verwendet werden können. Da darüber hinaus die Federaufnahme vorzugsweise symmetrisch zur durch die Trennwand verlaufenden Mittelebene ausgebildet ist, kann bei Reihenklemmen dieselbe Federaufnahme auf beiden Anschlussseiten verwendet werden, so dass sich die Anzahl der benötigten Bauteile reduziert.Both the spring receiver and the clamping springs are preferably designed so that they can be used for both types of assembly described above. Moreover, since the spring receptacle is preferably formed symmetrically to the running through the partition center plane, the same spring receptacle can be used on both sides of the terminal in terminal blocks, so that reduces the number of required components.

Im Einzelnen gibt es nun eine Vielzahl von Möglichkeiten, die erfindungsgemäße elektrische Anschlussklemme sowie das erfindungsgemäße Verfahren auszugestalten und weiterzubilden. Dazu wird verwiesen sowohl auf die den Patentansprüchen 1 und 9 bzw. 10 nachgeordneten Patentansprüche als auch auf die nachfolgende Beschreibung zweier bevorzugter Ausführungsbeispiele in Verbindung mit der Zeichnung. In der Zeichnung zeigen

Fig. 1
eine als Reihenklemme ausgebildete erfindungsgemäße elektrische Anschlussklemme,
Fig. 2
zwei perspektivische Darstellungen der Federaufnahme der erfindungsgemäßen Anschlussklemme,
Fig. 3
die Federaufnahme gemäß Fig. 2 mit zwei montieren Klemmfedem,
Fig. 4
einen Teil des Gehäuses einer elektrischen Anschlussklemme mit leerer Kammer,
Fig. 5
das Gehäuse gemäß Fig. 4 mit in die Kammer eingesetzter Federaufnahme,
Fig. 6
das Gehäuse gemäß Fig. 4 und 5, mit zusätzlich in die Kammer eingesetztem Strombalken,
Fig. 7
die Federaufnahme gemäß Fig. 2, aufgerastet auf einem Strombalken,
Fig. 8
die auf dem Strombalken aufgerasteten Federaufnahme gemäß Fig. 7, mit zusätzlich montierten Klemmfedern
Fig. 9
die Montageeinheit bestehend aus Federaufnahme, Strombalken und Klemmfedern gemäß Fig. 8, eingesetzt in die Kammer eines Gehäuses, und
Fig. 10
das Gehäuse gemäß Fig. 9, mit einem Deckel verschlossen.
In particular, there are now a variety of ways to design and develop the electrical terminal according to the invention and the inventive method. Reference is made to both the patent claims 1 and 9 and 10 subordinate claims as well as to the following description of two preferred embodiments in conjunction with the drawings. In the drawing show
Fig. 1
a terminal constructed as a terminal inventive electrical terminal,
Fig. 2
two perspective views of the spring receptacle of the terminal according to the invention,
Fig. 3
the spring seat according to Fig. 2 mount with two clamping springs,
Fig. 4
a part of the housing of an electrical terminal with an empty chamber,
Fig. 5
the housing according to Fig. 4 with inserted into the chamber spring receptacle,
Fig. 6
the housing according to Fig. 4 and 5 , with additional inserted into the chamber current bar,
Fig. 7
the spring seat according to Fig. 2 , snapped on a current bar,
Fig. 8
the latched on the current bar spring receptacle according to Fig. 7 , with additionally mounted clamping springs
Fig. 9
the assembly unit consisting of spring holder, current bars and clamping springs according to Fig. 8 , inserted into the chamber of a housing, and
Fig. 10
the housing according to Fig. 9 closed with a lid.

In Fig. 1 ist eine elektrische Anschlussklemme 1 dargestellt, die als Reihenklemme ausgebildet ist. Die elektrische Anschlussklemme 1 weist ein Gehäuse 2 aus Kunststoff auf, wobei in dem Gehäuse 2 auf beiden Seiten der Anschlussklemme 1 jeweils zwei Klemmfedern 3, 3' und ein die Klemmfedern 3, 3' miteinander verbindender Strombalken 4 angeordnet sind. Zur Aufnahme der Klemmfedern 3, 3' und zumindest der beiden Enden des Strombalkens 4 sind in dem Gehäuse 2 der Reihenklemme zwei Kammern 5 ausgebildet. Über eine Leitereinführungsöffnung 6, in die zwei elektrische Leiter eingesteckt werden können, können die anzuschließenden Leiter jeweils in eine Kammer 5 eingesteckt werden. Grundsätzlich könnten anstelle der dargestellten "Doppel"-Leitereinführungsöffnung 6 auch zwei einzelne Leitereinführungsöffnungen nebeneinander ausgebildet sein, wobei dann in jede Leitereinführungsöffnung nur ein Leiter eingeführt werden kann. Wie aus Fig. 1 erkennbar ist, sind die von einer Kammer 5 aufgenommenen Klemmfedern 3, 3' relativ zur Längserstreckung des Strombalkens 4 nebeneinander angeordnet.In Fig. 1 an electrical terminal 1 is shown, which is designed as a terminal block. The electrical terminal 1 has a housing 2 made of plastic, wherein in the housing 2 on both sides of the terminal 1 each two clamping springs 3, 3 'and a clamping springs 3, 3' interconnecting current bar 4 are arranged. To accommodate the clamping springs 3, 3 'and at least the two ends of the current bar 4, two chambers 5 are formed in the housing 2 of the terminal block. Via a conductor insertion opening 6, in which two electrical conductors can be inserted, the conductors to be connected can each be inserted into a chamber 5. In principle, instead of the illustrated "double" conductor insertion opening 6, two individual conductor insertion openings could be formed next to one another, in which case only one conductor can be inserted into each conductor insertion opening. How out Fig. 1 can be seen, the recorded from a chamber 5 clamping springs 3, 3 'relative to the longitudinal extent of the current bar 4 are arranged side by side.

Bei der dargestellten elektrischen Anschlussklemme sind die Klemmfedern 3, 3' im Wesentlichen V-förmig ausgebildet, so dass es sich um Schenkelfedern handelt, die jeweils einen Klemmschenkel 7, einen Anlageschenkel 8 und einen die beiden Schenkel 7, 8 miteinander verbindenden bogenförmigen Rücken 9 aufweisen. Die Klemmfedern 3, 3' bilden dabei jeweils zusammen mit einem Abschnitt des Strombalkens 4 einen Federkraftklemmanschluss, bei dem die Klemmschenkel 7 mit dem Strombalken 4 jeweils eine Klemmstelle für einen anzuschließenden abisolierten Leiter bilden. Zur leichteren Montage und zur genauen Positionierung der Klemmfedern 3, 3' ist innerhalb der Kammer 5 des Gehäuses 2 eine Federaufnahme 10 angeordnet, die eine Trennwand 11 aufweist, deren Haupterstreckung in Erstreckungsrichtung des Strombalkens 4 verläuft, d.h. deren Flächennormale senkrecht zur Längserstreckung der in Fig. 1 dargestellten elektrischen Anschlussklemme 1 verläuft.In the illustrated electrical terminal, the clamping springs 3, 3 'are substantially V-shaped, so that it is leg springs, each having a clamping leg 7, a plant leg 8 and the two legs 7, 8 interconnecting arcuate back 9 , The clamping springs 3, 3 'in each case together with a portion of the current bar 4 form a spring terminal connection, in which the clamping legs 7 with the current bar 4 each form a terminal point for a stripped conductor to be connected. For easier installation and for the exact positioning of the clamping springs 3, 3 ', a spring receptacle 10 is disposed within the chamber 5 of the housing 2, which has a partition wall 11, the main extension extends in the direction of extension of the current bar 4, ie their surface normal to the longitudinal extent of in Fig. 1 shown electrical terminal 1 runs.

Der genaue Aufbau und die Ausgestaltung der Federaufnahme 10 sind insbesondere anhand der perspektivischen Darstellungen in Fig. 2 erkennbar. Die Federaufnahme 10 weist auf beiden Seiten der Trennwand 11 mehrere Vorsprünge 12, 13, 14 auf, die zur Halterung der Klemmfedern 3, 3' auf jeweils einer Seite der Trennwand 11 dienen. Wie aus Fig. 3 erkennbar ist, ist der näherungsweise rippenartige Vorsprung 12 bei montierten Klemmfedern 3, 3' innerhalb der Klemmfedern 3, 3', d.h. zwischen dem Klemmschenkel 7 und dem Anlageschenkel 8 angeordnet, während die beiden balkenförmigen Vorsprünge 13, 14 außerhalb der Klemmfedern 3, 3' angeordnet sind. Die Vorsprünge 13, 14 sind dabei derart angeordnet und voneinander beabstandet, dass der Klemmschenkel 7 und der Anlageschenkel 8 geringfügig aus ihrer Ruhelage, nach innen, ausgelenkt sind, wenn eine Klemmfedern 3, 3' auf die Federaufnahme 10 aufgesteckt ist. Die Klemmfeder 3, 3' wird somit aufgrund ihrer Federkraft zwischen den beiden Vorsprüngen 13, 14 gehalten.The exact structure and design of the spring retainer 10 are in particular with reference to the perspective views in Fig. 2 recognizable. The spring receptacle 10 has on both sides of the partition wall 11 a plurality of projections 12, 13, 14, which serve for holding the clamping springs 3, 3 'on one side of the partition wall 11. How out Fig. 3 can be seen, the approximately rib-like projection 12 with mounted clamping springs 3, 3 'within the clamping springs 3, 3', that is arranged between the clamping leg 7 and the plant leg 8, while the two bar-shaped projections 13, 14 outside of the clamping springs 3, 3 ' are arranged. The projections 13, 14 are arranged and spaced from each other so that the clamping leg 7 and the abutment leg 8 are slightly from its rest position, inwardly deflected when a clamping springs 3, 3 'is attached to the spring retainer 10. The clamping spring 3, 3 'is thus held by the spring force between the two projections 13, 14.

Damit die Klemmfeder 3 in ihrer vorgegebenen Position verbleibt, ist ein Ende 15 des Vorsprungs 13 derart angeordnet und ausgebildet, dass die Klemmfeder 3 mit ihrem bogenförmigen Rücken 9 das Ende 15 zumindest teilweise umgreift bzw. auf dem Ende 15 aufliegt. Außerdem weist der rippenartige Vorsprüng 12 einen Abschnitt 16 auf, dessen Kontur an die Kontur des Klemmschenkels 7 angepasst ist und der derart an der Federaufnahme 10 angeordnet ist, dass der Abschnitt 16 des Vorsprungs 12 beim Auslenken des Klemmschenkels 7 als Anschlag für diesen dient. Der Vorsprung 12 dient somit nicht nur zur Lagefixierung der Klemmfeder 3, sondern gleichzeitig auch als Überdehnungsschutz für die Klemmfeder 3.Thus, the clamping spring 3 remains in its predetermined position, one end 15 of the projection 13 is arranged and formed such that the clamping spring 3 with its arcuate back 9, the end 15 at least partially surrounds or rests on the end 15. In addition, the rib-like projection 12 has a portion 16 whose contour is adapted to the contour of the clamping leg 7 and which is arranged on the spring seat 10, that the portion 16 of the projection 12 during deflection of the clamping leg 7 serves as a stop for this. The projection 12 thus serves not only for fixing the position of the clamping spring 3, but at the same time as an overstretch protection for the clamping spring. 3

Zur sicheren Befestigung der Federaufnahme 10 mit den beiden daran befestigten Klemmfedern 3, 3' in der Kammer 5 des Gehäuses 2 sind in der Kammer 5 zwei Rastzapfen 17 und in der Federaufnahme 10 zwei korrespondierende Öffnungen 18 ausgebildet, so dass die Federaufnahme 10 mit den Öffnungen 18 auf die Rastzapfen 17 in der Kammer 5 aufgesteckt werden kann. Wie insbesondere aus den Fig. 3 und 4 ersichtlich ist, sind dabei sowohl die Rastzapfen 17 als auch die Öffnungen 18 derart angeordnet, dass sie sich im montierten Zustand der Federaufnahme 10 zwischen den beiden Schenkeln 7, 8 der Klemmfedern 3, 3' befinden. Durch die Anordnung und Ausbildung der Rastzapfen 17 und der Öffnungen 18 kommt es somit nicht zu einer Vergrößerung der Abmessungen der Kammer 5 und der Federaufnahme 10. Bei dem dargestellten Ausführungsbeispiel sind die beiden Öffnungen 18 in der Federaufnahme 10 im Bereich der Vorsprünge 12 ausgebildet, so dass ein gewolltes Auslenken des Klemmschenkels 7 beim Anschließen eines elektrischen Leiters durch die Rastzapfen 17 nicht behindert wird.For secure attachment of the spring retainer 10 with the two attached thereto clamping springs 3, 3 'in the chamber 5 of the housing 2 are in the chamber 5 two locking pin 17 and in the spring retainer 10 two corresponding Openings 18 are formed so that the spring receptacle 10 can be plugged with the openings 18 on the locking pin 17 in the chamber 5. As in particular from the 3 and 4 it can be seen, both the locking pin 17 and the openings 18 are arranged such that they are in the mounted state of the spring retainer 10 between the two legs 7, 8 of the clamping springs 3, 3 '. The arrangement and design of the locking pin 17 and the openings 18 thus does not lead to an increase in the dimensions of the chamber 5 and the spring retainer 10. In the illustrated embodiment, the two openings 18 are formed in the spring retainer 10 in the region of the projections 12 so that a deliberate deflection of the clamping leg 7 when connecting an electrical conductor by the locking pin 17 is not hindered.

Bei dem in den Fig. 3 bis 6 dargestellten Ausführungsbeispiel einer elektrischen Anschlussklemme 1 erfolgt die Montage derart, dass zunächst die beiden Klemmfedern 3, 3' auf beiden Seiten der Trennwand 11 auf die Federaufnahme 10 aufgesteckt werden (Fig. 3). Anschließend wird die Baueinheit aus den beiden Klemmfedern 3, 3' und der Federaufnahme 10 in die Kammer 5 im Gehäuse 2 eingesetzt, wozu die Federaufnahme 10 mit ihren Öffnungen 18 auf die Rastzapfen 17 aufgesteckt wird (Fig. 5). Danach wird dann der Strombalken 4 in die Kammer 5 eingesetzt, wobei die Klemmschenkel 7 der beiden Klemmfedern 3, 3' jeweils mit dem Strombalken 4 eine Klemmstelle für einen anzuschließenden abisolierten Leiter bilden. Um auch den Strombalken 4 sicher und in der vorgegebenen Position in der Kammer 5 zu fixieren, ist in der Kammer 5 ein Vorsprung 19 und im Strombalken 4 eine korrespondierende Ausnehmung 20 (vgl. Fig. 7 und 8) ausgebildet, wobei auch hier über eine Verrastung zwischen dem Vorsprung 19 und der Ausnehmung 20 eine sichere Befestigung des Strombalkens 4 in der Kammer 5 gewährleistet werden kann.In the in the Fig. 3 to 6 illustrated embodiment of an electrical terminal 1, the assembly is carried out such that initially the two clamping springs 3, 3 'are attached to both sides of the partition 11 on the spring seat 10 ( Fig. 3 ). Subsequently, the assembly of the two clamping springs 3, 3 'and the spring retainer 10 is inserted into the chamber 5 in the housing 2, for which purpose the spring retainer 10 is plugged with its openings 18 on the locking pin 17 ( Fig. 5 ). Thereafter, the current bar 4 is inserted into the chamber 5, wherein the clamping legs 7 of the two clamping springs 3, 3 'each form a clamping point for a connected stripped conductor with the current bar 4. In order to fix the current bar 4 safely and in the predetermined position in the chamber 5, in the chamber 5, a projection 19 and the current bar 4 a corresponding recess 20 (see. FIGS. 7 and 8 ), wherein a secure attachment of the current bar 4 in the chamber 5 can be ensured here by a latching between the projection 19 and the recess 20.

Die Fig. 7 bis 10 zeigen eine zweite Ausführungsform einer elektrischen Anschlussklemme 1, die sich gegenüber der in den Fig. 3 bis 6 dargestellten Ausführungsform insbesondere durch einen etwas anders ausgebildeten Strombalken 4 unterscheidet. Darüber weist die in den Fig. 7 bis 10 dargestellte Anschlussklemme 1 eine etwas andere Montagereihenfolge auf, als die, die zuvor beschrieben worden ist. Dagegen bestehen keine Unterschiede sowohl zwischen den verwendeten Klemmfedern 3, 3' als auch insbesondere zwischen den eingesetzten Federaufnahmen 10.The Fig. 7 to 10 show a second embodiment of an electrical terminal 1, which are opposite to in the Fig. 3 to 6 illustrated embodiment differs in particular by a slightly different shaped current bar 4. About that points in the Fig. 7 to 10 shown terminal 1 on a slightly different mounting sequence than that which has been previously described. In contrast, there are no differences between both the used clamping springs 3, 3 'and in particular between the inserted spring housings 10th

Bei dieser Montageart wird zunächst eine Federaufnahme 10 gemäß Fig. 2 auf den Strombalken 4 aufgesteckt (Fig. 7). Zur Befestigung sind am Strombalken 4 und an der Federaufnahme 10 mehrere zueinander korrespondierende Rastvorrichtungen ausgebildet. Am Strombalken 4 sind dazu ein Rastvorsprung 21 und eine Rastausnehmung 24 ausgebildet, die mit einer korrespondierenden Rastausnehmung 22 und einem Rastvorsprung 23 jeweils an einer Stirnseite der Federaufnahme 10 zusammenwirken. Darüber hinaus weist der Strombalken 4 noch ein senkrecht abgebogenes, gabelförmiges Rastelement 25 auf, das im montierten Zustand einen an der Federaufnahme 10 ausgebildeten Steg 26 umgreift. Die Rastvorrichtungen sind dabei sämtlich so ausgebildet und angeordnet, dass sie weder ein Einsetzen der Federaufnahme 10 ohne Strombalken 4 (Fig. 5) noch ein Einsetzen der Federaufnahme 10 mit Strombalken 4 (Fig. 9) in die Kammer 5 im Gehäuse 2 behindern.In this type of mounting, first a spring receptacle 10 according to Fig. 2 attached to the current bar 4 ( Fig. 7 ). For fixing a plurality of mutually corresponding locking devices are formed on the current bar 4 and the spring retainer 10. At the current bar 4, a latching projection 21 and a latching recess 24 are formed, which cooperate with a corresponding latching recess 22 and a latching projection 23 respectively on one end face of the spring receptacle 10. In addition, the current bar 4 still has a vertically bent, fork-shaped latching element 25, which surrounds a formed on the spring seat 10 web 26 in the mounted state. The locking devices are all designed and arranged so that they are neither an insertion of the spring holder 10 without current bar 4 ( Fig. 5 ) is still an insertion of the spring holder 10 with current bar 4 ( Fig. 9 ) hinder in the chamber 5 in the housing 2.

Nach dem Aufstecken und Verrasten der Federaufnahme 10 auf dem Strombalken 4 werden als nächstes die beiden Klemmfedern 3, 3' auf die Federaufnahme 10 aufgesteckt. Wie aus Fig. 8 ersichtlich ist, werden dabei die Klemmfedern 3, 3' sowohl durch die an der Federaufnahme 10 ausgebildeten Vorsprünge 12, 14 als auch durch den Strombalken 4 in ihrer Position gehalten. Alternativ ist es jedoch auch möglich, dass die Klemmfedern 3, 3' nur oder im wesentlichen nur vom Strombalken 4 und ggf. noch vom Vorsprung 12 gehalten werden. Anschließend wird dann die Baugruppe bestehend aus den beiden Klemmfedern 3, 3', dem Strombalken 4 und der Federaufnahme 10 in die Kammer 5 im Gehäuse 2 eingesetzt, wobei auch hier die Federaufnahme 10 mit den Öffnungen 18 auf die Rastzapfen 17 in der Kammer 5 aufgesteckt wird (Fig. 9). Als Letztes erfolgt dann optional noch der Verschluss des Gehäuses 2 bzw. der Kammer 5 mit Hilfe eines Deckels 27 (Fig. 10).After plugging and locking the spring retainer 10 on the current bar 4 next the two clamping springs 3, 3 'attached to the spring retainer 10. How out Fig. 8 it can be seen, while the clamping springs 3, 3 'held both by the formed on the spring retainer 10 projections 12, 14 and by the current bar 4 in position. Alternatively, however, it is also possible for the clamping springs 3, 3 'to be held only or essentially only by the current bar 4 and possibly also by the projection 12. Subsequently, the assembly consisting of the two clamping springs 3, 3 ', the current bar 4 and the spring retainer 10 is inserted into the chamber 5 in the housing 2, wherein also the spring retainer 10 with the openings 18 attached to the locking pin 17 in the chamber 5 becomes ( Fig. 9 ). Finally, the closure of the housing 2 or of the chamber 5 is then optionally carried out with the aid of a cover 27 (FIG. Fig. 10 ).

Bei der in Fig. 1 dargestellten Reihenklemme 1 ist ein Verschluss der Kammern 5 mittels eines Deckels bzw. einer separaten Seitenwand nicht vorgesehen, gleichwohl aber grundsätzlich auch möglich. Ein Verschluss der Kammern 5 ist bei dieser Ausführungsform deshalb nicht notwendig, da von dem Strombalken 4 zwei Seitenwände 28, 29 derart abgebogen sind, dass sie als Begrenzung für das anzuschließende Leiterende dienen, so dass ein eingesteckter Leiter durch den Klemmschenkel 7 nicht seitlich aus der Klemmstelle herausgedrückt werden kann. Aus einer Zusammenschau der Fig. 1 und 2 ist darüber hinaus erkennbar, dass die Federaufnahme 10 symmetrisch zur Mittelebene, d.h. zur Trennwand 11 ausgebildet ist, so dass dieselbe Federaufnahme 10 auf beiden Anschlussseiten der Reihenklemme 1 montiert werden kann.At the in Fig. 1 illustrated terminal 1 is a closure of the chambers 5 by means of a lid or a separate side wall is not provided, but nevertheless also possible in principle. A closure of the chambers 5 is therefore not necessary in this embodiment, since of the current bar 4 two side walls 28, 29 are bent so that they as Serve limit for the conductor end to be connected, so that an inserted conductor can not be pushed laterally out of the nip by the clamping leg 7. From a synopsis of Fig. 1 and 2 In addition, it can be seen that the spring receptacle 10 is symmetrical to the median plane, ie to the dividing wall 11, so that the same spring receptacle 10 can be mounted on both connection sides of the terminal block 1.

Bei dem in Fig. 1 dargestellten Ausführungsbeispiel der elektrischen Anschlussklemme 1 sind im Gehäuse 2 neben den Leitereinführungsöffnungen 6 auf beiden Anschlussseiten jeweils noch zwei Betätigungsöffnungen 30 ausgebildet, in denen jeweils ein Betätigungsdrücker 31 angeordnet ist. In der in den Fig. 1 und 6 dargestellten, ersten, oberen Position der Betätigungsdrücker 31 ist die Klemmstelle zwischen dem zugeordneten Klemmschenkel 7 und dem Strombalken 4 geschlossen. Wird ein Betätigungsdrücker 31 beispielsweise mit Hilfe eines Schraubendrehers nach unten gedrückt, so lenkt der Betätigungsdrücker 31 mit seinem dem Klemmschenkel 7 zugewandten Ende den Klemmschenkel 7 gegen die Federkraft der Klemmfeder 3 aus, so dass die Klemmstelle geöffnet wird. Dann kann auch ein flexibler Leiter ohne Aderendhülse in die Klemmstelle eingeführt oder ein geklemmter Leiter aus der Klemmstelle herausgezogen werden.At the in Fig. 1 illustrated embodiment of the electrical terminal 1 are in the housing 2 in addition to the conductor insertion openings 6 on both sides of the connection each still two actuation openings 30 are formed, in each of which an actuation lever 31 is arranged. In the in the Fig. 1 and 6 illustrated, the first, upper position of the actuating handle 31, the nip between the associated clamping leg 7 and the current bar 4 is closed. If an actuating pushbutton 31 is pressed down, for example with the aid of a screwdriver, the actuating pushbutton 31 with its end facing the clamping leg 7 deflects the clamping leg 7 against the spring force of the clamping spring 3, so that the clamping point is opened. Then, a flexible conductor without wire end ferrule inserted into the terminal point or a clamped conductor can be pulled out of the terminal point.

Claims (12)

  1. Electrical connection terminal having a housing (2), having two clamping springs (3, 3') and having at least one current bar (4),
    wherein a chamber (5) for accommodating the clamping springs (3, 3') and at least one end of the at least one current bar (4) and at least one conductor entry opening (6) for insertion of two conductors are formed in the housing (2), and
    wherein each of the clamping springs (3, 3') has a clamping leg (7), a contact leg (8) and an arc-shaped back (9) connecting the two legs (7, 8) to one another, wherein a clamping site for a stripped conductor to be connected is formed by each of the clamping legs (7) together with the current bar (4),
    characterized in
    that the clamping springs (3, 3') are arranged next to one another relative to the longitudinal extension of the current bar (4),
    wherein a spring receiver (10) with a partition (11) is provided within the chamber (5), wherein the two clamping springs (3, 3') are arranged on a respective side of the partition (11), so that the partition (11) is located between the two clamping springs (3, 3'), and
    wherein the spring receiver (10) has several projections (12, 13, 14) on each side of the partition (11), which are used for holding the clamping springs (3, 3').
  2. Electrical connection terminal according to claim 1, characterized in that there is one projection (12) within the clamping springs (3, 3') and two projections (13, 14) outside of the clamping springs (3, 3') on each side of the partition (11), wherein the projections (13) located within the clamping springs (3, 3') are formed in such a manner, that they act as a stop for the clamping legs (7) when the clamping legs (7) are deflected and each have an end (15) which is arranged in a region of the arc-shaped back (9) of the clamping springs (3, 3').
  3. Electrical connection terminal according to claim 1 or 2, characterized in that the spring receiver (10) is latched in the chamber (5) of the housing (2), for which catch devices interacting with one another formed in the chamber (5) and on the spring receiver (10) are formed, wherein the catch devices are arranged in the region between the two legs (7, 8) of the catch springs (3, 3').
  4. Electrical connection terminal according to claim 3, characterized in that two catch pegs (17) are formed within the chamber (5) and two openings (18) corresponding to the catch pegs (17) are formed in the spring receiver (10), so that the openings (18) of the spring receiver (10) can be slipped onto the catch pegs (17) in the chamber (5).
  5. Electrical connection terminal according to any one of claims 1 to 4, characterized in that at least one catch element (19) is formed within the chamber (5) of the housing (2) and a corresponding catch recess (20) is formed in the current bar (4), so that the current bar (4) can be latched in the housing (2).
  6. Electrical connection terminal according to any one of claims 1 to 5, characterized in that the current bar (4) and the spring receiver (10) can be latched to one another, for which catch elements interacting with one another are formed on the current bar (4) and on the spring receiver (10).
  7. Electrical connection terminal according to any one of claims 1 to 6, characterized in that two actuating openings (30) are formed in the housing (2), in each of which an operating pusher (31) is arranged such that the operating pusher (31) can be moved out of a first position, in which a respective clamping site is closed, into a second position, in which an end of the operating pusher (31) deflects the clamping leg (7) of a clamping spring (3, 3') against its spring force so that the respective clamping site is opened.
  8. Method for mounting an electrical connection terminal (1) according to claim 1, having a housing (2), two clamping springs (3, 3') and at least one current bar (4), wherein a chamber (5) for accommodation of the clamping springs (3, 3') and of at least one end of the at least one current bar (4) and at least one conductor entry opening (6) for entry of two conductors are formed in the housing (2), and wherein each of the clamping springs (3, 3') has a clamping leg (7), a contact leg (8) and an arc-shaped back (9) connecting the two legs (7, 8) to one another,
    characterized by the steps:
    - arranging the two clamping springs (3, 3') on a spring receiver (10) having a partition (11), wherein each of the clamping springs (3, 3') is arranged on a respective side of the partition (11) and wherein the spring receiver (10) has projections (12, 13, 14) on both sides of the partition (11) which are used to hold the clamping springs (3, 3'),
    - inserting the spring receiver (10) with the clamping springs (3, 3') attached to it into the chamber (5) in the housing (2), and
    - inserting the current bar (4) into the chamber (5) in the housing (2) such that the clamping legs (7) together with the current bar (4) each form a clamping site for a stripped conductor to be connected.
  9. Method for mounting an electrical connection terminal (1) according to claim 1, having a housing (2), two clamping springs (3, 3') and at least one current bar (4), wherein a chamber (5) for accommodation of the clamping springs (3, 3') and of at least one end of the at least one current bar (4) and at least one conductor entry opening (6) for entry of two conductors are formed in the housing (2), and wherein each of the clamping springs (3, 3') has a clamping leg (7), a contact leg (8) and an arc-shaped back (9) connecting the two legs (7, 8) to one another,
    characterized by the steps:
    - slipping a spring receiver (10) having a partition (11) onto the current bar (4) for which catch elements interacting with one another are formed on the current bar (4) and on the spring receiver (10),
    - arranging the clamping springs (3, 3') on a respective side of the partition (11) of the spring receiver (10) in such a manner that the clamping legs (7) together with the current bar (4) each form a respective clamping site for a stripped conductor to be connected, wherein the spring receiver (10) has projections (12, 13, 14) on both sides of the partition (11), which are used for holding the clamping springs (3, 3'),
    - inserting the spring receiver (10) with the clamping springs attached (3, 3') to it and the at least one current bar (4) into the chamber (5) in the housing (2).
  10. Method according to claim 8 or 9, wherein two catch pegs (17) are formed within the chamber (5) and two openings (18) corresponding to the catch pegs (17) are formed in the spring receiver (10), characterized in that the openings (18) are slipped onto the catch pegs (17) when inserting the spring receiver (10) in the chamber (5), whereby the spring receiver (10) is latched in the housing (2).
  11. Method according to any one of claims 8 to 10, wherein at least one catch element (19) is formed within the chamber (5) of the housing (2) and a corresponding catch recess (20) is formed in the current bar (4), characterized in that the at least one catch recess (20) is latched with the at least one catch element (19) in the chamber (5) when the current bar (4) is inserted into the chamber (5).
  12. Method according to any one of claims 8 to 11, characterized in that the chamber (5) is closed with a cover (27) after insertion of the spring receiver (10) and the current bar (4) into the chamber (5) in the housing (2).
EP12737200.1A 2011-06-21 2012-06-21 Electric terminal Active EP2724420B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011115637.6A DE102011115637B4 (en) 2011-06-21 2011-06-21 Electrical connection terminal
PCT/EP2012/002617 WO2012175205A1 (en) 2011-06-21 2012-06-21 Electrical connection terminal

Publications (2)

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EP2724420A1 EP2724420A1 (en) 2014-04-30
EP2724420B1 true EP2724420B1 (en) 2017-11-08

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US (1) US9083115B2 (en)
EP (1) EP2724420B1 (en)
JP (1) JP5762631B2 (en)
CN (1) CN103608971B (en)
DE (1) DE102011115637B4 (en)
WO (1) WO2012175205A1 (en)

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Also Published As

Publication number Publication date
US20140127932A1 (en) 2014-05-08
WO2012175205A1 (en) 2012-12-27
DE102011115637B4 (en) 2014-03-27
EP2724420A1 (en) 2014-04-30
CN103608971B (en) 2016-07-06
CN103608971A (en) 2014-02-26
JP2014517491A (en) 2014-07-17
US9083115B2 (en) 2015-07-14
JP5762631B2 (en) 2015-08-12
DE102011115637A1 (en) 2012-12-27

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