EP3261185A1 - Contact inset of a spring force terminal block and spring force terminal block - Google Patents

Contact inset of a spring force terminal block and spring force terminal block Download PDF

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Publication number
EP3261185A1
EP3261185A1 EP17176894.8A EP17176894A EP3261185A1 EP 3261185 A1 EP3261185 A1 EP 3261185A1 EP 17176894 A EP17176894 A EP 17176894A EP 3261185 A1 EP3261185 A1 EP 3261185A1
Authority
EP
European Patent Office
Prior art keywords
spring
clamping
leg
holding frame
contact insert
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17176894.8A
Other languages
German (de)
French (fr)
Other versions
EP3261185B1 (en
Inventor
Jörg Ahldag
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.)
Wago Verwaltungs GmbH
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Wago Verwaltungs GmbH
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Filing date
Publication date
Application filed by Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Publication of EP3261185A1 publication Critical patent/EP3261185A1/en
Application granted granted Critical
Publication of EP3261185B1 publication Critical patent/EP3261185B1/en
Active 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
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/52—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw which is spring loaded
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to a contact insert of a spring force terminal with at least one holding frame and at least one hinged in the holding frame clamping spring, wherein at least within a region surrounded by a spring bow of the clamping spring an acting to increase the clamping force of the clamping spring insertion spring is arranged.
  • the invention also relates to a spring force terminal with at least one such contact insert.
  • the invention relates to the field of electrical connection technology by means of spring clamps.
  • spring clamp terminals There are already known for this spring clamp terminals with Federkraftklemman untiln.
  • An electrical conductor can be clamped solely by the force of a clamping spring and electrically contacted, usually on a power rail. If electrical conductors with a large conductor cross-section are securely clamped, a correspondingly large spring force is required.
  • This can e.g. be realized in that the spring is made of a strip material with a large material thickness.
  • a manufacturing simplification can be realized by the used for the clamping of the electrical conductor clamping spring is made of thinner strip material and the clamping force is arranged by an at least partially surrounded by the clamping spring area an additional insertion spring.
  • Such a spring-loaded connection terminal is known from the WAGO series 285-135 or 285-635.
  • the invention is based on the object to simplify the contact insert of such a spring force terminal with respect to the assembly of the items.
  • the insert spring is formed integrally with the support frame.
  • the holding frame may have at least one fastening means for fastening the insert spring to the holding frame, so that the insert spring can be fastened to the holding frame even without the clamping spring.
  • the installation of the contact insert and thus the entire spring force connection terminal is simplified, since the insertion spring can already be pre-assembled on the support frame, because it has a fastening means for fastening the insertion spring.
  • the preassembled unit from the holding frame and the loading spring can then be fitted with the clamping spring.
  • the contact insert formed in this way can then be arranged in an insulating material housing to form a complete spring force connection terminal.
  • the assembly is further simplified and improved by integrally forming the insert spring with the support frame, e.g. as a one-piece metal part, e.g. in the form of a stamped and bent part. Accordingly, also eliminates a mounting of the insert spring on the support frame. It is only to mount the clamping spring on the support frame to provide the contact insert, or possibly even attach a busbar.
  • the invention also improves the cost of producing the contact insert and the storage of the components, since the variety of individual parts is reduced. In addition, the number of tools required for the production of the contact insert and for the assembly of the items can be reduced.
  • the arrangement of the clamping spring with the insertion spring inserted therein makes it possible to easily provide a high spring force for clamping electrical conductors with large cross-sections, eg 35 mm 2 or more.
  • the high spring force ensures a good electrical connection of the electrical conductor to the busbar or other electrical parts of the contact insert, so that the voltage drop at the transition between the electrical conductor and the busbar or the other components can be kept low.
  • Strip material having a relatively small thickness e.g. a thickness in the range of 0.4 to 0.8 mm, in particular 0.6 mm.
  • Such spring material can be processed on simple, commercial punch-bending machines with little effort, since relatively low forming forces are required.
  • Another advantage of the invention is that the use of copper can be kept low.
  • the contact insert can basically be used for spring-cage terminals of any kind, accordingly also for fundamentally arbitrarily shaped clamping springs, as far as they have at least one spring bow.
  • the contact insert according to the invention can be realized in particular in a favorable manner, a push-in spring terminal connection.
  • an electrical conductor with sufficient rigidity e.g. a stranded conductor or a stranded conductor with, for example, a wire end ferrule, are inserted directly into the spring terminal connection or into its terminal point, without first having to deflect the clamping spring by means of a tool or an actuating element of the spring terminal. This is particularly advantageous for the fast wiring of a large number of electrical lines.
  • the clamping spring has a clamping leg for clamping an electrical conductor and a plant leg, via which the clamping spring is supported on the support frame, wherein the clamping leg is connected via the spring bow with the plant leg.
  • the clamping leg can end in particular with a clamping edge, which serves for clamping a conductor in the contact insert.
  • the clamping spring may in particular be designed such that the clamping leg and the bearing limb run substantially parallel and the spring bow describes an angular range of about 180 °, when no conductor is clamped in the contact insert. In this way, proven, reliable clamping spring constructions can be used, for example in the manner of a loop spring.
  • the holding frame surrounds a frame interior annularly, wherein the holding frame a support surface facing the frame interior for the Einitati Stud of the clamping arm of the clamping spring and on a side opposite the holding surface side of the holding frame facing the frame interior support surface for the end of the Clamping leg of the clamping spring or a bus bar, so that the clamping spring in the holding frame between the support surface and the support surface or resting on the support surface busbar can be clamped so that the clamping leg of the clamping spring rests on the support surface or the busbar, if no conductor is clamped therebetween , In this way, a reliable holding and Einitatiitz possibility for the clamping spring is provided on the support frame.
  • the clamping spring can thus be on one side, i. with the plant leg, supported on the support surface, and supported on the other side, namely with the clamping leg, directly or indirectly via the bus bar on the support surface. Accordingly, a clamping point for the electrical conductor is provided between the clamping leg, in particular its clamping edge, and the support surface or the busbar.
  • the contact insert may be formed as a contact insert with a separate bus bar, i. a bus bar, which is provided as a separate component and is clamped to the support surface in the holding frame by means of the clamping leg.
  • the contact insert may also be designed as a contact insert with integrated busbar, e.g. in that the holding frame has an integrated busbar. This can e.g. be realized by having a part of the support frame, e.g. a pointing to the frame interior material area, punched out and bent so that it forms a busbar for supporting the electrical conductor.
  • the contact insert has a busbar formed as a separate component, this busbar can thus be clamped between the clamping leg and the support surface.
  • the holding frame forms a kind of cage in which the busbar and the clamping spring can be accommodated.
  • the support frame of the frame interior is in particular completely enclosed annularly, which has the advantage that a self-contained system is provided, which forms a self-supporting spring force connection system with the inclusion of a clamping spring, which may be formed as a push-in clamping spring.
  • the contact insert according to the invention is suitable for clamping springs and busbars in many designs.
  • no special adaptation of the busbar to use in the contact insert according to the invention is required. So no changes to the busbar material thickness must be made.
  • busbars can be used in proven design.
  • a busbar piece may be guided in the holding frame, wherein the busbar piece in the area of the system in the holding frame for an angled and can be provided on the other with a bead for the end of the clamping leg of the clamping spring.
  • the frame interior may be separated from the support frame e.g. be enclosed annularly with rectangular or square profile contour.
  • Other geometries of the ring shape are possible, e.g. oval or circular, a rectangular or square shape but is for the function of a spring-loaded terminal on Gebhoffchlisten.
  • the support surface is arranged on one side of the frame interior.
  • the frame interior can also be used to form the terminal point for the electrical conductor.
  • the holding surface can also be arranged on one side of the frame interior, e.g. one of the support surface opposite side of the frame interior.
  • the holding surface is not arranged on one side of the frame interior.
  • the holding surface can accordingly be arranged in a different region of the holding frame, for example on a separate retaining tab for attaching the clamping spring.
  • the loading spring is designed as a separate component, it can have a bearing limb which is hung on one side of the frame interior, for example on a side of the frame interior opposite the bearing surface.
  • the insertion spring ends with its ending in the region of the clamping leg of the clamping spring part before reaching an end-side clamping edge of the clamping leg.
  • the holding frame in the region of the holding surface has an integrally formed on the holding frame extended piece of material which is bent away arcuately from the holding frame and which forms the insertion spring. This allows a simple and cost-effective production of a holding frame with integrated insertion spring.
  • the insert spring may have a similar shape as the clamping spring, at least in the region of the spring bow and the adjacent region of the contact leg and the clamping leg.
  • the insert spring abuts at least in the region of its end legs or in the predominant longitudinal extension region on the inner side of the clamping spring formed between the abutment leg and the clamping leg.
  • the loading spring can exert a sufficient supporting force on the clamping spring.
  • the insert spring does not have to rest at any point on the clamping spring, but may have on the clamping spring adjacent areas and not present on the clamping spring areas.
  • the insert spring can abut against the clamping spring, in particular in the area of the spring bow.
  • the insertion spring at its end facing the clamping leg has a greater width than the width of the frame interior of the holding frame and / or the clamping leg facing the end of the insertion spring is arranged offset to the frame interior. In this way it can be prevented that the insertion spring can move endwise with appropriate deflection of the clamping spring into the frame interior. Rather, the free end of the loading spring in the region of the clamping leg forms a stop on the holding frame.
  • the spring-cage connection terminal can optionally be designed as a spring-force connection terminal with its own actuating element, eg actuating lever or actuating push-button, or without its own actuating element. If there is a separate actuating element, the clamping point of the spring terminal connection can be opened by means of the actuating element by the clamping leg is lifted from the busbar or an already clamped conductor and is bent in the direction of the plant leg. If the spring-force connection terminal does not have its own actuating element, the previously explained, desired opening of the spring-force terminal connection can be carried out by means of a tool, for example by means of a screwdriver.
  • Another advantage is that by means of the holding frame is avoided, the spring and actuating forces in a housing of the spring force terminal, which surrounds the contact insert, are introduced.
  • a reduction of the friction is possible when the running surface of the actuating element is located directly on the surface of the holding frame. As a result, the operating force of the actuating element can be reduced.
  • the support frame 2 is integral with the insertion spring 5 made of a strip or strip-shaped sheet metal part.
  • a lower, vertically extending portion A of the sheet metal part of the holding function essential part of the holding frame 2 is formed, which has a frame interior 20 which is annularly surrounded by the material of the holding frame 2.
  • the section A passes over into a section B bent obliquely or almost at right angles from the section A, which merges over an arcuate region into an end-side section C of the sheet metal part.
  • the support frame 2 has in the frame interior 20 on one side a support surface 22, on which the busbar 31 is mounted and rests on the support surface 22.
  • a tab 24 is bent out of the sheet metal part, e.g. by punching and bending, wherein the tab 24 has a window-like recess region, on one inner side of a holding surface 25 for suspending a support leg 40 of the clamping spring 4 is present.
  • the sheet metal part is substantially the same shape in the region of the insertion spring 5 as the clamping spring 4, at least in essential areas of the abutment leg, a rear spring bow 41 and a clamping leg 42nd
  • the insert spring 5 ends in the section C with an end edge 50, which is recognizably wider than the width of the frame interior 20.
  • the end edge 50 is a stop for the insert spring 5, when it is deflected in the direction of the support frame 2.
  • the clamping spring 4 which is now based on the FIGS. 1 and 3 is explained, has a plant leg 40, then a rear spring bow 41 and then a clamping leg 42 thereafter.
  • the plant leg 40 terminates in a narrower hanging area 45, which can be inserted into the recess of the tab 24 and can be hung on the support surface 25.
  • the hanging region 45 is bent in an upward direction with respect to the spring bow 41 in the opposite direction.
  • the clamping spring 4 ends with a clamping edge 43, which is arranged in a slightly downwardly bent end portion 44 of the clamping spring.
  • the end portion 44 is slightly narrower than the remaining portions of the clamping leg 42, since this end portion 44 is inserted through the opening in the support frame 2, ie in the frame interior 20, to either the support surface 22 or, as in FIG. 1 shown to be held by the bus bar 31.
  • An electrical conductor may be inserted into the spring-force terminal 1 through a conductor insertion opening 21 and is then clamped between the clamping edge 43 of the clamping spring 4 and the bus bar 31. Accordingly, a clamping point 32 of the spring-force connection terminal 1 is formed between the clamping edge 43 and the busbar 31.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

Die Erfindung betrifft einen Kontakteinsatz einer Federkraftanschlussklemme mit wenigstens einem Halterahmen und wenigstens einer in dem Halterahmen eingehängten Klemmfeder, wobei zumindest innerhalb eines von einem Federbogen der Klemmfeder umgebenen Bereiches eine zur Verstärkung der Klemmkraft der Klemmfeder wirkende Einlegefeder angeordnet ist, wobei die Einlegefeder mit dem Halterahmen einstückig ausgebildet ist. Die Erfindung betrifft außerdem eine Federkraftanschlussklemme mit wenigstens einem derartigen Kontakteinsatz.The invention relates to a contact insert of a spring force terminal with at least one holding frame and at least one hinged in the support frame clamping spring, wherein at least within a region surrounded by a spring bow of the clamping spring area acting to reinforce the clamping force of the clamping spring insertion spring is arranged, wherein the insertion spring integral with the support frame is trained. The invention also relates to a spring force terminal with at least one such contact insert.

Description

Die Erfindung betrifft einen Kontakteinsatz einer Federkraftanschlussklemme mit wenigstens einem Halterahmen und wenigstens einer in dem Halterahmen eingehängten Klemmfeder, wobei zumindest innerhalb eines von einem Federbogen der Klemmfeder umgebenen Bereiches eine zur Verstärkung der Klemmkraft der Klemmfeder wirkende Einlegefeder angeordnet ist. Die Erfindung betrifft außerdem eine Federkraftanschlussklemme mit wenigstens einem derartigen Kontakteinsatz.The invention relates to a contact insert of a spring force terminal with at least one holding frame and at least one hinged in the holding frame clamping spring, wherein at least within a region surrounded by a spring bow of the clamping spring an acting to increase the clamping force of the clamping spring insertion spring is arranged. The invention also relates to a spring force terminal with at least one such contact insert.

Allgemein betrifft die Erfindung das Gebiet der elektrischen Anschlusstechnik mittels Federkraftklemmanschlüssen. Es sind hierfür bereits Federkraftanschlussklemmen mit Federkraftklemmanschlüssen bekannt. Ein elektrischer Leiter kann dabei allein durch die Kraft einer Klemmfeder festgeklemmt und elektrisch kontaktiert werden, in der Regel an einer Stromschiene. Sollen dabei elektrische Leiter mit großem Leiterquerschnitt sicher geklemmt werden, so ist eine entsprechend große Federkraft erforderlich. Dies kann z.B. dadurch realisiert werden, dass die Feder aus einem Bandmaterial mit einer großen Materialdicke hergestellt wird. Eine fertigungstechnische Vereinfachung kann realisiert werden, indem die für das Klemmen des elektrischen Leiters genutzte Klemmfeder aus dünnerem Bandmaterial hergestellt wird und die Klemmkraft durch eine zumindest teilweise im von der Klemmfeder umgebenen Bereich eine zusätzliche Einlegefeder angeordnet ist. Eine solche Federkraftanschlussklemme ist durch die WAGO-Serie 285-135 oder 285-635 bekannt.Generally, the invention relates to the field of electrical connection technology by means of spring clamps. There are already known for this spring clamp terminals with Federkraftklemmanschlüssen. An electrical conductor can be clamped solely by the force of a clamping spring and electrically contacted, usually on a power rail. If electrical conductors with a large conductor cross-section are securely clamped, a correspondingly large spring force is required. This can e.g. be realized in that the spring is made of a strip material with a large material thickness. A manufacturing simplification can be realized by the used for the clamping of the electrical conductor clamping spring is made of thinner strip material and the clamping force is arranged by an at least partially surrounded by the clamping spring area an additional insertion spring. Such a spring-loaded connection terminal is known from the WAGO series 285-135 or 285-635.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, den Kontakteinsatz einer solchen Federkraftanschlussklemme im Hinblick auf die Montage der Einzelteile zu vereinfachen.The invention is based on the object to simplify the contact insert of such a spring force terminal with respect to the assembly of the items.

Diese Aufgabe wird bei einem Kontakteinsatz der eingangs genannten Art dadurch gelöst, dass die Einlegefeder mit dem Halterahmen einstückig ausgebildet ist. In einer alternativen Variante kann der Halterahmen wenigstens ein Befestigungsmittel zur Befestigung der Einlegefeder an dem Halterahmen aufweisen, sodass die Einlegefeder auch ohne die Klemmfeder an dem Halterahmen befestigbar ist.This object is achieved with a contact insert of the type mentioned above in that the insert spring is formed integrally with the support frame. In an alternative variant, the holding frame may have at least one fastening means for fastening the insert spring to the holding frame, so that the insert spring can be fastened to the holding frame even without the clamping spring.

Auf diese Weise wird die Montage des Kontakteinsatzes und damit der gesamten Federkraftanschlussklemme vereinfacht, da die Einlegefeder bereits an dem Halterahmen vormontiert werden kann, weil dieser ein Befestigungsmittel zur Befestigung der Einlegefeder aufweist. Die vormontierte Einheit aus dem Halterahmen und der Einlegefeder kann dann mit der Klemmfeder bestückt werden. Der auf diese Weise gebildete Kontakteinsatz kann dann in einem Isolierstoffgehäuse angeordnet werden, um eine vollständige Federkraftanschlussklemme zu bilden.In this way, the installation of the contact insert and thus the entire spring force connection terminal is simplified, since the insertion spring can already be pre-assembled on the support frame, because it has a fastening means for fastening the insertion spring. The preassembled unit from the holding frame and the loading spring can then be fitted with the clamping spring. The contact insert formed in this way can then be arranged in an insulating material housing to form a complete spring force connection terminal.

Die Montage wird noch weiter vereinfacht und verbessert, indem die Einlegefeder mit dem Halterahmen einstückig ausgebildet ist, z.B. als einstückiges Metallteil, z.B. in Form eines Stanzbiegeteils. Dementsprechend entfällt auch eine Montage der Einlegefeder am Halterahmen. Es ist nur noch die Klemmfeder am Halterahmen einzuhängen, um den Kontakteinsatz bereitzustellen, oder ggf. noch eine Stromschiene anzubringen.The assembly is further simplified and improved by integrally forming the insert spring with the support frame, e.g. as a one-piece metal part, e.g. in the form of a stamped and bent part. Accordingly, also eliminates a mounting of the insert spring on the support frame. It is only to mount the clamping spring on the support frame to provide the contact insert, or possibly even attach a busbar.

Durch die Erfindung wird zudem der Aufwand für die Herstellung des Kontakteinsatzes und die Lagerhaltung der Bauteile verbessert, da die Einzelteile-Vielfalt reduziert wird. Zudem kann die Anzahl der für die Herstellung des Kontakteinsatzes und für die Montage der Einzelteile erforderlichen Werkzeuge reduziert werden.The invention also improves the cost of producing the contact insert and the storage of the components, since the variety of individual parts is reduced. In addition, the number of tools required for the production of the contact insert and for the assembly of the items can be reduced.

Die Anordnung aus der Klemmfeder mit der darin eingelegten Einlegefeder erlaubt es, auf einfache Weise eine hohe Federkraft zum Klemmen von elektrischen Leitern mit großen Querschnitten, z.B. 35 mm2 oder mehr, bereitzustellen. Durch die hohe Federkraft wird eine gute elektrische Anbindung des elektrischen Leiters an die Stromschiene oder sonstige elektrische Teile des Kontakteinsatzes sichergestellt, sodass der Spannungsabfall am Übergang zwischen dem elektrischen Leiter und der Stromschiene bzw. den sonstigen Bauteilen gering gehalten werden kann. Hierbei kann die Klemmfeder und/oder die Einlegefeder aus federndem Flachmaterial bzw.The arrangement of the clamping spring with the insertion spring inserted therein makes it possible to easily provide a high spring force for clamping electrical conductors with large cross-sections, eg 35 mm 2 or more. The high spring force ensures a good electrical connection of the electrical conductor to the busbar or other electrical parts of the contact insert, so that the voltage drop at the transition between the electrical conductor and the busbar or the other components can be kept low. In this case, the clamping spring and / or the insertion spring of resilient flat material or

Bandmaterial hergestellt werden, das eine relativ geringe Dicke aufweist, z.B. eine Dicke im Bereich von 0,4 bis 0,8 mm, insbesondere 0,6 mm. Solches Federmaterial kann auf einfachen, handelsüblichen Stanz-Biege-Maschinen mit geringem Aufwand bearbeitet werden, da vergleichsweise geringe Umformkräfte erforderlich sind.Strip material having a relatively small thickness, e.g. a thickness in the range of 0.4 to 0.8 mm, in particular 0.6 mm. Such spring material can be processed on simple, commercial punch-bending machines with little effort, since relatively low forming forces are required.

Ein weiterer Vorteil der Erfindung besteht darin, dass der Einsatz von Kupfer gering gehalten werden kann.Another advantage of the invention is that the use of copper can be kept low.

Der Kontakteinsatz kann grundsätzlich für Federkraftanschlussklemmen beliebiger Art eingesetzt werden, dementsprechend auch für grundsätzlich beliebig geformte Klemmfedern, soweit diese zumindest einen Federbogen aufweisen. Mit dem erfindungsgemäßen Kontakteinsatz kann insbesondere in günstiger Weise ein Push-in-Federkraftklemmanschluss realisiert werden. Bei einer solchen Art von Federkraftklemmanschlüssen kann ein elektrischer Leiter mit ausreichender Steifigkeit, z.B. ein eindrähtiger Leiter oder ein mehrdrähtiger Leiter mit zum Beispiel einer Aderendhülse, direkt in den Federkraftklemmanschluss bzw. in dessen Klemmstelle eingesteckt werden, ohne dass zunächst die Klemmfeder mittels eines Werkzeuges oder eines Betätigungselementes der Federkraftanschlussklemme ausgelenkt werden muss. Dies ist insbesondere für das schnelle Verdrahten einer großen Anzahl von elektrischen Leitungen vorteilhaft.The contact insert can basically be used for spring-cage terminals of any kind, accordingly also for fundamentally arbitrarily shaped clamping springs, as far as they have at least one spring bow. With the contact insert according to the invention can be realized in particular in a favorable manner, a push-in spring terminal connection. In such a type of spring clamp connections, an electrical conductor with sufficient rigidity, e.g. a stranded conductor or a stranded conductor with, for example, a wire end ferrule, are inserted directly into the spring terminal connection or into its terminal point, without first having to deflect the clamping spring by means of a tool or an actuating element of the spring terminal. This is particularly advantageous for the fast wiring of a large number of electrical lines.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Klemmfeder einen Klemmschenkel zum Festklemmen eines elektrischen Leiters und einen Anlageschenkel aufweist, über den die Klemmfeder an dem Halterahmen abgestützt ist, wobei der Klemmschenkel über den Federbogen mit dem Anlageschenkel verbunden ist. Der Klemmschenkel kann dabei insbesondere mit einer Klemmkante enden, die zum Festklemmen eines Leiters in dem Kontakteinsatz dient. Auf diese Weise können bewährte Konstruktionsprinzipien von Federkraftanschlussklemmen auf den Bereich der Federkraftklemmung elektrischer Leiter mit großen Querschnitten übertragen werden. Die Klemmfeder kann insbesondere derart ausgebildet sein, dass der Klemmschenkel und der Anlageschenkel im Wesentlichen parallel verlaufen und der Federbogen einen Winkelbereich von etwa 180° beschreibt, wenn kein Leiter im Kontakteinsatz festgeklemmt ist. Auf diese Weise können erprobte, zuverlässige Klemmfeder-Konstruktionen eingesetzt werden, z.B. in der Art einer Schlaufenfeder.According to an advantageous embodiment of the invention it is provided that the clamping spring has a clamping leg for clamping an electrical conductor and a plant leg, via which the clamping spring is supported on the support frame, wherein the clamping leg is connected via the spring bow with the plant leg. The clamping leg can end in particular with a clamping edge, which serves for clamping a conductor in the contact insert. In this way, proven design principles of spring terminals can be transferred to the field of spring clamping of electrical conductors with large cross sections. The clamping spring may in particular be designed such that the clamping leg and the bearing limb run substantially parallel and the spring bow describes an angular range of about 180 °, when no conductor is clamped in the contact insert. In this way, proven, reliable clamping spring constructions can be used, for example in the manner of a loop spring.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Halterahmen einen Rahmeninnenraum ringförmig umschließt, wobei der Halterahmen eine zum Rahmeninnenraum weisende Haltefläche für den Einhängebereich des Anlageschenkels der Klemmfeder und an einer der Haltefläche gegenüberliegenden Seite des Halterahmens eine zum Rahmeninnenraum weisende Auflagefläche für den Endbereich des Klemmschenkels der Klemmfeder oder eine Stromschiene aufweist, sodass die Klemmfeder in dem Halterahmen zwischen der Haltefläche und der Auflagefläche oder der auf der Auflagefläche aufliegenden Stromschiene eingespannt werden kann, sodass der Klemmschenkel der Klemmfeder an der Auflagefläche oder der Stromschiene aufliegt, wenn kein Leiter dazwischen festgeklemmt ist. Auf diese Weise wird eine zuverlässige Halte- und Einhängemöglichkeit für die Klemmfeder an dem Halterahmen bereitgestellt. Die Klemmfeder kann sich somit an einer Seite, d.h. mit dem Anlageschenkel, an der Haltefläche abstützen, und an der anderen Seite, nämlich mit dem Klemmschenkel, unmittelbar oder mittelbar über die Stromschiene an der Auflagefläche abstützen. Dementsprechend wird zwischen dem Klemmschenkel, insbesondere seiner Klemmkante, und der Auflagefläche oder der Stromschiene eine Klemmstelle für den elektrischen Leiter bereitgestellt.According to an advantageous embodiment of the invention, it is provided that the holding frame surrounds a frame interior annularly, wherein the holding frame a support surface facing the frame interior for the Einhängebereich of the clamping arm of the clamping spring and on a side opposite the holding surface side of the holding frame facing the frame interior support surface for the end of the Clamping leg of the clamping spring or a bus bar, so that the clamping spring in the holding frame between the support surface and the support surface or resting on the support surface busbar can be clamped so that the clamping leg of the clamping spring rests on the support surface or the busbar, if no conductor is clamped therebetween , In this way, a reliable holding and Einhängemöglichkeit possibility for the clamping spring is provided on the support frame. The clamping spring can thus be on one side, i. with the plant leg, supported on the support surface, and supported on the other side, namely with the clamping leg, directly or indirectly via the bus bar on the support surface. Accordingly, a clamping point for the electrical conductor is provided between the clamping leg, in particular its clamping edge, and the support surface or the busbar.

Der Kontakteinsatz kann als Kontakteinsatz mit separater Stromschiene ausgebildet sein, d.h. einer Stromschiene, die als separates Bauteil bereitgestellt wird und an der Auflagefläche im Halterahmen mittels des Klemmschenkels eingespannt ist. Der Kontakteinsatz kann auch als Kontakteinsatz mit integrierter Stromschiene ausgebildet sein, z.B. indem der Halterahmen eine integrierte Stromschiene aufweist. Dies kann z.B. dadurch realisiert sein, dass ein Teil des Halterahmens, z.B. ein zum Rahmeninnenraum weisender Materialbereich, ausgestanzt und abgebogen wird, sodass dieser eine Stromschiene zur Auflage des elektrischen Leiters bildet.The contact insert may be formed as a contact insert with a separate bus bar, i. a bus bar, which is provided as a separate component and is clamped to the support surface in the holding frame by means of the clamping leg. The contact insert may also be designed as a contact insert with integrated busbar, e.g. in that the holding frame has an integrated busbar. This can e.g. be realized by having a part of the support frame, e.g. a pointing to the frame interior material area, punched out and bent so that it forms a busbar for supporting the electrical conductor.

Sofern der Kontakteinsatz eine als separates Bauteil ausgebildete Stromschiene aufweist, kann diese Stromschiene somit zwischen dem Klemmschenkel und der Auflagefläche eingespannt sein.If the contact insert has a busbar formed as a separate component, this busbar can thus be clamped between the clamping leg and the support surface.

Somit bildet der Halterahmen eine Art Käfig, in dem die Stromschiene und die Klemmfeder aufgenommen werden können. Durch den Halterahmen ist der Rahmeninnenraum insbesondere vollständig ringförmig umschlossen, was den Vorteil hat, dass ein in sich geschlossenes System bereitgestellt wird, das mit der Aufnahme einer Klemmfeder, die als Push-in-Klemmfeder ausgebildet sein kann, ein selbsttragendes Federkraftanschlusssystem bildet.Thus, the holding frame forms a kind of cage in which the busbar and the clamping spring can be accommodated. By the support frame of the frame interior is in particular completely enclosed annularly, which has the advantage that a self-contained system is provided, which forms a self-supporting spring force connection system with the inclusion of a clamping spring, which may be formed as a push-in clamping spring.

Der erfindungsgemäße Kontakteinsatz eignet sich für Klemmfedern und Stromschienen in vielen Bauarten. Insbesondere ist keine besondere Anpassung der Stromschiene an die Nutzung in dem erfindungsgemäßen Kontakteinsatz erforderlich. So müssen keine Veränderungen an der Stromschienen-Materialstärke vorgenommen werden. Somit können Stromschienen in bewährter Ausführung eingesetzt werden. Im unteren Bereich des Halterahmens kann ein Stromschienenstück in dem Halterahmen geführt sein, wobei das Stromschienenstück im Bereich der Anlage im Halterahmen zum einen abgewinkelt und zum anderen mit einer Sicke für das Ende des Klemmschenkels der Klemmfeder versehen sein kann.The contact insert according to the invention is suitable for clamping springs and busbars in many designs. In particular, no special adaptation of the busbar to use in the contact insert according to the invention is required. So no changes to the busbar material thickness must be made. Thus, busbars can be used in proven design. In the lower region of the holding frame, a busbar piece may be guided in the holding frame, wherein the busbar piece in the area of the system in the holding frame for an angled and can be provided on the other with a bead for the end of the clamping leg of the clamping spring.

Der Rahmeninnenraum kann von dem Halterahmen z.B. mit rechteckiger oder quadratischer Profilkontur ringförmig umschlossen sein. Es sind auch andere Geometrien der Ringform möglich, z.B. oval oder kreisrund, eine rechteckige oder quadratische Form ist aber für die Funktion einer Federkraftanschlussklemme am Gebräuchlisten.The frame interior may be separated from the support frame e.g. be enclosed annularly with rectangular or square profile contour. Other geometries of the ring shape are possible, e.g. oval or circular, a rectangular or square shape but is for the function of a spring-loaded terminal on Gebräuchlisten.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Auflagefläche an einer Seite des Rahmeninnenraums angeordnet ist. Dementsprechend kann der Rahmeninnenraum auch zur Bildung der Klemmstelle für den elektrischen Leiter genutzt werden. Je nach Ausführungsform des Kontakteinsatzes kann die Haltefläche auch an einer Seite des Rahmeninnenraums angeordnet sein, z.B. einer der Auflagefläche gegenüberliegenden Seite des Rahmeninnenraums.According to an advantageous embodiment of the invention it is provided that the support surface is arranged on one side of the frame interior. Accordingly, the frame interior can also be used to form the terminal point for the electrical conductor. Depending on the embodiment of the contact insert, the holding surface can also be arranged on one side of the frame interior, e.g. one of the support surface opposite side of the frame interior.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist die Haltefläche nicht an einer Seite des Rahmeninnenraums angeordnet. Die Haltefläche kann dementsprechend in einem anderen Bereich des Halterahmens angeordnet sein, z.B. an einer separaten Haltelasche zum Einhängen der Klemmfeder. Ist die Einlegefeder als separates Bauteil ausgebildet, kann sie einen Anlageschenkel aufweisen, der an einer Seite des Rahmeninnenraums eingehängt wird, z.B. an einer der Auflagefläche gegenüberliegenden Seite des Rahmeninnenraums.According to an advantageous embodiment of the invention, the holding surface is not arranged on one side of the frame interior. The holding surface can accordingly be arranged in a different region of the holding frame, for example on a separate retaining tab for attaching the clamping spring. If the loading spring is designed as a separate component, it can have a bearing limb which is hung on one side of the frame interior, for example on a side of the frame interior opposite the bearing surface.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Einlegefeder mit ihrem im Bereich des Klemmschenkels der Klemmfeder endenden Teil vor Erreichen einer endseitigen Klemmkante des Klemmschenkels endet. Dies hat den Vorteil, dass die Einlegefeder aus einem kürzeren Materialstück gebildet werden kann als die Klemmfeder, da sie ihre unterstützende Federkraft nicht unbedingt über den gesamten Bereich der Längserstreckung der Klemmfeder ausüben muss. Auf diese Weise kann Material gespart werden. Zudem wird die Montage des Kontakteinsatzes vereinfacht. Ein weiterer Vorteil ist, dass zum Klemmen des elektrischen Leiters im Kontakteinsatz nur die eine definierte Klemmkante des Klemmschenkels genutzt wird, sodass sich eine mechanisch definierte Anordnung ergibt.According to an advantageous embodiment of the invention it is provided that the insertion spring ends with its ending in the region of the clamping leg of the clamping spring part before reaching an end-side clamping edge of the clamping leg. This has the advantage that the insertion spring can be formed from a shorter piece of material than the clamping spring, since it does not necessarily have to exert its supporting spring force over the entire region of the longitudinal extension of the clamping spring. In this way, material can be saved. In addition, the installation of the contact insert is simplified. Another advantage is that for clamping the electrical conductor in the contact insert only the one defined clamping edge of the clamping leg is used, so that there is a mechanically defined arrangement.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass der Halterahmen im Bereich der Haltefläche ein einstückig am Halterahmen ausgebildetes verlängertes Materialstück aufweist, das bogenförmig von dem Halterahmen fortgebogen ist und das die Einlegefeder bildet. Dies erlaubt eine einfache und kostengünstige Fertigung eines Halterahmens mit integrierter Einlegefeder.According to an advantageous embodiment of the invention it is provided that the holding frame in the region of the holding surface has an integrally formed on the holding frame extended piece of material which is bent away arcuately from the holding frame and which forms the insertion spring. This allows a simple and cost-effective production of a holding frame with integrated insertion spring.

Die Einlegefeder kann eine vergleichbare Formgebung haben wie die Klemmfeder, zumindest im Bereich des Federbogens und den angrenzenden Bereich des Anlageschenkels und des Klemmschenkels.The insert spring may have a similar shape as the clamping spring, at least in the region of the spring bow and the adjacent region of the contact leg and the clamping leg.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass von dem Halterahmen eine herausgebogene Lasche hervorsteht, die zum Halten des Anlageschenkels der Klemmfeder eingerichtet ist. Auf diese Weise wird eine einstückig am Halterahmen vorgesehene Haltemöglichkeit bzw. Einhängmöglichkeit für den Anlageschenkel der Klemmfeder bereitgestellt. Zusätzliche Bauteile für die Befestigung der Klemmfeder an dem Halterahmen sind dann nicht erforderlich.According to an advantageous embodiment of the invention it is provided that protrudes from the holding frame an outwardly bent tab, which is adapted to hold the abutment leg of the clamping spring. In this way, an integrally provided on the support frame holding possibility or Einhängmöglichkeit for the plant leg of the clamping spring is provided. Additional components for the attachment of the clamping spring to the support frame are then not required.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Einlegefeder zumindest im Bereich ihrer endseitigen Schenkel oder im überwiegenden Längserstreckungsbereich an der zwischen dem Anlageschenkel und dem Klemmschenkel gebildeten Innenseite der Klemmfeder anliegt. Auf diese Weise kann die Einlegefeder eine ausreichende Unterstützungskraft auf die Klemmfeder ausüben. Die Einlegefeder muss dabei nicht an jeder Stelle an der Klemmfeder anliegen, sondern kann an der Klemmfeder anliegende Bereiche und an der Klemmfeder nicht anliegende Bereiche aufweisen. Die Einlegefeder kann insbesondere im Bereich des Federbogens der Klemmfeder an dieser anliegen.According to an advantageous embodiment of the invention it is provided that the insert spring abuts at least in the region of its end legs or in the predominant longitudinal extension region on the inner side of the clamping spring formed between the abutment leg and the clamping leg. In this way, the loading spring can exert a sufficient supporting force on the clamping spring. The insert spring does not have to rest at any point on the clamping spring, but may have on the clamping spring adjacent areas and not present on the clamping spring areas. The insert spring can abut against the clamping spring, in particular in the area of the spring bow.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die Einlegefeder an ihrem dem Klemmschenkel zugewandten Ende eine größere Breite aufweist als die Breite des Rahmeninnenraums des Halterahmens und/oder das dem Klemmschenkel zugewandte Ende der Einlegefeder versetzt zum Rahmeninnenraum angeordnet ist. Auf diese Weise kann verhindert werden, dass sich die Einlegefeder endseitig bei entsprechender Auslenkung der Klemmfeder bis in den Rahmeninnenraum hineinbewegen kann. Vielmehr bildet das freie Ende der Einlegefeder im Bereich des Klemmschenkels einen Anschlag an dem Halterahmen.According to an advantageous embodiment of the invention, it is provided that the insertion spring at its end facing the clamping leg has a greater width than the width of the frame interior of the holding frame and / or the clamping leg facing the end of the insertion spring is arranged offset to the frame interior. In this way it can be prevented that the insertion spring can move endwise with appropriate deflection of the clamping spring into the frame interior. Rather, the free end of the loading spring in the region of the clamping leg forms a stop on the holding frame.

Die eingangs genannte Aufgabe wird ferner gelöst durch eine Federkraftanschlussklemme mit wenigstens einem Kontakteinsatz der zuvor erläuterten Art. Auch hierdurch können die zuvor erläuterten Vorteile realisiert werden.The above-mentioned object is further achieved by a spring-force connection terminal with at least one contact insert of the previously described type. This also makes it possible to realize the advantages explained above.

Die Federkraftanschlussklemme kann wahlweise als Federkraftanschlussklemme mit eigenem Betätigungselement, z.B. Betätigungshebel oder Betätigungsdrücker, oder ohne eigenes Betätigungselement ausgebildet sein. Ist ein eigenes Betätigungselement vorhanden, kann mittels des Betätigungselementes die Klemmstelle des Federkraftklemmanschlusses geöffnet werden, indem der Klemmschenkel von der Stromschiene oder einem bereits festgeklemmten Leiter abgehoben wird und in Richtung des Anlageschenkels gebogen wird. Weist die Federkraftanschlussklemme kein eigenes Betätigungselement auf, so kann das zuvor erläuterte, gewünschte Öffnen des Federkraftklemmanschlusses mittels eines Werkzeuges, z.B. durch einen Schraubendreher, durchgeführt werden.The spring-cage connection terminal can optionally be designed as a spring-force connection terminal with its own actuating element, eg actuating lever or actuating push-button, or without its own actuating element. If there is a separate actuating element, the clamping point of the spring terminal connection can be opened by means of the actuating element by the clamping leg is lifted from the busbar or an already clamped conductor and is bent in the direction of the plant leg. If the spring-force connection terminal does not have its own actuating element, the previously explained, desired opening of the spring-force terminal connection can be carried out by means of a tool, for example by means of a screwdriver.

Ein weiterer Vorteil ist, dass mittels des Halterahmens vermieden wird, das Feder- und Betätigungskräfte in ein Gehäuse der Federkraftanschlussklemme, die den Kontakteinsatz umgibt, eingeleitet werden. Zudem ist eine Verringerung der Reibung möglich, wenn sich die Lauffläche des Betätigungselementes direkt auf der Oberfläche des Halterahmens befindet. Hierdurch kann die Betätigungskraft des Betätigungselementes reduziert werden.Another advantage is that by means of the holding frame is avoided, the spring and actuating forces in a housing of the spring force terminal, which surrounds the contact insert, are introduced. In addition, a reduction of the friction is possible when the running surface of the actuating element is located directly on the surface of the holding frame. As a result, the operating force of the actuating element can be reduced.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Verwendung von Zeichnungen näher erläutert.The invention will be explained in more detail by means of embodiments using drawings.

Es zeigen

Figur 1
eine Federkraftanschlussklemme in seitlicher Schnittdarstellung und
Figur 2
den Halterahmen der Federkraftanschlussklemme gemäß Figur 1 in perspektivischer Darstellung und
Figur 3
die Klemmfeder der Federkraftanschlussklemme gemäß Figur 1 in perspektivischer Darstellung.
Show it
FIG. 1
a spring-cage connection terminal in lateral sectional view and
FIG. 2
the retaining frame of the spring-cage terminal according to FIG. 1 in perspective and
FIG. 3
the clamping spring of the spring-loaded terminal according to FIG. 1 in perspective view.

In den Figuren werden gleiche Bezugszeichen für einander entsprechende Elemente verwendet.In the figures, like reference numerals are used for corresponding elements.

Die Figur 1 zeigt eine Federkraftanschlussklemme 1 mit einem Isolierstoffgehäuse 10, in dem ein erfindungsgemäßer Kontakteinsatz angeordnet ist. Der Kontakteinsatz weist als Komponenten, die jeweils aus Metall hergestellt sind, folgendes auf:

  • einen Halterahmen 2
  • eine Stromschienenanordnung 3 mit Stromschienen 30, 31
  • eine Klemmfeder 4
  • eine Einlegefeder 5.
The FIG. 1 shows a spring terminal 1 with an insulating housing 10, in which a contact insert according to the invention is arranged. The contact insert has as components, each made of metal, the following:
  • a holding frame 2
  • a busbar arrangement 3 with busbars 30, 31
  • a clamping spring 4
  • a loading spring 5.

Zunächst sei der Halterahmen 2 näher erläutert, und zwar unter gleichzeitiger Bezugnahme auf die Figuren 1 und 2. Der Halterahmen 2 ist einstückig mit der Einlegefeder 5 aus einem band- oder streifenförmigen Metallblechteil hergestellt. In einem unteren, vertikal verlaufenden Abschnitt A des Metallblechteils wird der für die Haltefunktion wesentliche Teil des Halterahmens 2 gebildet, der einen Rahmeninnenraum 20 aufweist, der vom Material des Halterahmens 2 ringförmig umschlossen ist. Im oberen Bereich geht der Abschnitt A über in einen vom Abschnitt A schräg oder nahezu rechtwinklig abgebogenen Abschnitt B, der über einen bogenförmigen Bereich in einen endseitigen Abschnitt C des Metallblechteils übergeht. Durch das Material des Metallblechteils vom Abschnitt B bis zum Abschnitt C wird die einstückig mit dem Halterahmen 2 ausgebildete Einlegefeder 5 gebildet.First, the support frame 2 will be explained in more detail, with simultaneous reference to the FIGS. 1 and 2 , The support frame 2 is integral with the insertion spring 5 made of a strip or strip-shaped sheet metal part. In a lower, vertically extending portion A of the sheet metal part of the holding function essential part of the holding frame 2 is formed, which has a frame interior 20 which is annularly surrounded by the material of the holding frame 2. In the upper region, the section A passes over into a section B bent obliquely or almost at right angles from the section A, which merges over an arcuate region into an end-side section C of the sheet metal part. By the material of the sheet metal part from the section B to the section C formed integrally with the support frame 2 insert spring 5 is formed.

Der Halterahmen 2 weist im Rahmeninnenraum 20 an einer Seite eine Auflagefläche 22 auf, an der die Stromschiene 31 gelagert ist und auf der Auflagefläche 22 aufliegt.The support frame 2 has in the frame interior 20 on one side a support surface 22, on which the busbar 31 is mounted and rests on the support surface 22.

Im Übergangsbereich vom Abschnitt A in den Abschnitt B ist aus dem Metallblechteil eine Lasche 24 herausgebogen, z.B. durch Ausstanzen und Biegen, wobei die Lasche 24 einen fensterartigen Aussparungsbereich aufweist, an dessen einer Innenseite eine Haltefläche 25 zum Einhängen eines Anlageschenkels 40 der Klemmfeder 4 vorhanden ist.In the transition region from section A to section B, a tab 24 is bent out of the sheet metal part, e.g. by punching and bending, wherein the tab 24 has a window-like recess region, on one inner side of a holding surface 25 for suspending a support leg 40 of the clamping spring 4 is present.

Das Metallblechteil ist im Bereich der Einlegefeder 5 im Wesentlichen gleich geformt wie die Klemmfeder 4, zumindest in wesentlichen Bereichen des Anlageschenkels, eines rückwärtigen Federbogens 41 und eines Klemmschenkels 42.The sheet metal part is substantially the same shape in the region of the insertion spring 5 as the clamping spring 4, at least in essential areas of the abutment leg, a rear spring bow 41 and a clamping leg 42nd

Die Einlegefeder 5 endet im Abschnitt C mit einer Endkante 50, die wie erkennbar breiter ist als die Breite des Rahmeninnenraums 20. Auf diese Weise ist die Endkante 50 ein Anschlag für die Einlegefeder 5, wenn diese in Richtung des Halterahmens 2 ausgelenkt wird.The insert spring 5 ends in the section C with an end edge 50, which is recognizably wider than the width of the frame interior 20. In this way, the end edge 50 is a stop for the insert spring 5, when it is deflected in the direction of the support frame 2.

Die Klemmfeder 4, die nun anhand der Figuren 1 und 3 erläutert wird, weist einen Anlageschenkel 40, daran anschließend einen rückwärtigen Federbogen 41 und daran anschließend einen Klemmschenkel 42 auf. Der Anlageschenkel 40 läuft endseitig in einem schmaleren Einhängebereich 45 aus, der in die Aussparung der Lasche 24 eingeführt werden kann und an der Haltefläche 25 eingehängt werden kann. Zu diesem Zweck ist der Einhängebereich 45 in bezüglich des Federbogens 41 entgegengesetztem Biegesinn sozusagen nach oben hin gebogen.The clamping spring 4, which is now based on the FIGS. 1 and 3 is explained, has a plant leg 40, then a rear spring bow 41 and then a clamping leg 42 thereafter. The plant leg 40 terminates in a narrower hanging area 45, which can be inserted into the recess of the tab 24 and can be hung on the support surface 25. To For this purpose, the hanging region 45 is bent in an upward direction with respect to the spring bow 41 in the opposite direction.

Im Bereich des Klemmschenkels 42 endet die Klemmfeder 4 mit einer Klemmkante 43, die in einem leicht nach unten hin abgebogenen Endbereich 44 der Klemmfeder angeordnet ist. Der Endbereich 44 ist etwas schmaler ausgebildet als die übrigen Bereiche des Klemmschenkels 42, da dieser Endbereich 44 durch die Öffnung im Halterahmen 2, d.h. in den Rahmeninnenraum 20, eingeführt wird, um entweder an der Auflagefläche 22 oder, wie in Figur 1 dargestellt, durch die Stromschiene 31 gehalten zu werden.In the region of the clamping leg 42, the clamping spring 4 ends with a clamping edge 43, which is arranged in a slightly downwardly bent end portion 44 of the clamping spring. The end portion 44 is slightly narrower than the remaining portions of the clamping leg 42, since this end portion 44 is inserted through the opening in the support frame 2, ie in the frame interior 20, to either the support surface 22 or, as in FIG. 1 shown to be held by the bus bar 31.

Ein elektrischer Leiter kann in die Federkraftanschlussklemme 1 durch eine Leitereinführöffnung 21 eingeführt werden und wird dann zwischen der Klemmkante 43 der Klemmfeder 4 und der Stromschiene 31 geklemmt. Dementsprechend wird zwischen der Klemmkante 43 und der Stromschiene 31 eine Klemmstelle 32 der Federkraftanschlussklemme 1 gebildet.An electrical conductor may be inserted into the spring-force terminal 1 through a conductor insertion opening 21 and is then clamped between the clamping edge 43 of the clamping spring 4 and the bus bar 31. Accordingly, a clamping point 32 of the spring-force connection terminal 1 is formed between the clamping edge 43 and the busbar 31.

Claims (10)

Kontakteinsatz einer Federkraftanschlussklemme (1) mit wenigstens einem Halterahmen (2) und wenigstens einer in dem Halterahmen (2) eingehängten Klemmfeder (4), wobei zumindest innerhalb eines von einem Federbogen (41) der Klemmfeder (4) umgebenen Bereiches eine zur Verstärkung der Klemmkraft der Klemmfeder (4) wirkende Einlegefeder (5) angeordnet ist, dadurch gekennzeichnet, dass die Einlegefeder (5) mit dem Halterahmen (2) einstückig ausgebildet ist.Contact insert of a spring-force connection terminal (1) with at least one holding frame (2) and at least one in the holding frame (2) hinged clamping spring (4), wherein at least within one of a spring bow (41) of the clamping spring (4) surrounded area for reinforcing the clamping force the insertion spring (5) acting on the clamping spring (4) is arranged, characterized in that the insertion spring (5) is integrally formed with the holding frame (2). Kontakteinsatz nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Klemmfeder (4) einen Klemmschenkel (42) zum Festklemmen eines elektrischen Leiters und einen Anlageschenkel (40) aufweist, über den die Klemmfeder (4) an dem Halterahmen (2) abgestützt ist, wobei der Klemmschenkel (42) über den Federbogen (41) mit dem Anlageschenkel (40) verbunden ist.Contact insert according to the preceding claim, characterized in that the clamping spring (4) has a clamping leg (42) for clamping an electrical conductor and an abutment leg (40), via which the clamping spring (4) is supported on the holding frame (2) the clamping leg (42) via the spring bow (41) to the plant leg (40) is connected. Kontakteinsatz nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Halterahmen (2) einen Rahmeninnenraum (20) ringförmig umschließt, wobei der Halterahmen (2) eine zum Rahmeninnenraum (20) weisende Haltefläche (25) für den Anlageschenkel (40) der Klemmfeder (4) und an einer der Haltefläche (25) gegenüberliegenden Seite des Halterahmens (2) eine zum Rahmeninnenraum (20) weisende Auflagefläche (22) für den Klemmschenkel (42) der Klemmfeder (4) oder eine Stromschiene (30, 31) aufweist, sodass die Klemmfeder (4) in dem Halterahmen (2) zwischen der Haltefläche (25) und der Auflagefläche (22) oder der auf der Auflagefläche (22) aufliegenden Stromschiene (30, 31) eingespannt werden kann, sodass der Klemmschenkel (42) der Klemmfeder (4) an der Auflagefläche (22) oder der Stromschiene (30, 31) aufliegt, wenn kein Leiter dazwischen festgeklemmt ist.Contact insert according to the preceding claim, characterized in that the holding frame (2) surrounds a frame interior (20) in an annular manner, wherein the holding frame (2) has a holding surface (25) facing the frame interior (20) for the abutment leg (40) of the clamping spring (4 ) and on one of the holding surface (25) opposite side of the holding frame (2) facing the frame interior (20) bearing surface (22) for the clamping leg (42) of the clamping spring (4) or a busbar (30, 31), so that the Clamping spring (4) in the holding frame (2) between the support surface (25) and the support surface (22) or on the support surface (22) resting busbar (30, 31) can be clamped, so that the clamping leg (42) of the clamping spring ( 4) on the support surface (22) or the busbar (30, 31) rests when no conductor is clamped therebetween. Kontakteinsatz nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Auflagefläche (22) an einer Seite des Rahmeninnenraums (20) angeordnet ist.Contact insert according to the preceding claim, characterized in that the bearing surface (22) on one side of the frame interior (20) is arranged. Kontakteinsatz nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Einlegefeder (5) mit ihrem im Bereich des Klemmschenkels (42) der Klemmfeder (4) endenden Teil vor Erreichen einer endseitigen Klemmkante (43) des Klemmschenkels (42) endet.Contact insert according to the preceding claim, characterized in that the insertion spring (5) ends with its in the region of the clamping leg (42) of the clamping spring (4) ending part before reaching an end clamping edge (43) of the clamping leg (42). Kontakteinsatz nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Halterahmen (2) im Bereich der Haltefläche (25) ein einstückig am Halterahmen (2) ausgebildetes verlängertes Materialstück aufweist, das bogenförmig von dem Halterahmen (2) fortgebogen ist und das die Einlegefeder (5) bildet.Contact insert according to one of the preceding claims, characterized in that the holding frame (2) in the region of the holding surface (25) integrally formed on the holding frame (2) formed elongated piece of material which is arcuately bent away from the holding frame (2) and the insert spring ( 5) forms. Kontakteinsatz nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass von dem Halterahmen (2) eine herausgebogene Lasche (24) hervorsteht, die zum Halten des Anlageschenkels (40) der Klemmfeder (4) eingerichtet ist.Contact insert according to one of the preceding claims, characterized in that protruding from the holding frame (2) protrudes a tab (24) which is adapted to hold the abutment leg (40) of the clamping spring (4). Kontakteinsatz nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Einlegefeder (5) zumindest im Bereich ihrer endseitigen Schenkel (B, C) oder im überwiegenden Längserstreckungsbereich an der zwischen dem Anlageschenkel (40) und dem Klemmschenkel (42) gebildeten Innenseite der Klemmfeder (4) anliegt.Contact insert according to one of the preceding claims, characterized in that the insertion spring (5) at least in the region of its end legs (B, C) or in the predominant longitudinal extension region on the inside of the clamping leg (42) formed between the plant leg (42) and the clamping spring (42) 4) is applied. Kontakteinsatz nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Einlegefeder (5) an ihrem dem Klemmschenkel (42) zugewandten Ende eine größere Breite aufweist als die Breite des Rahmeninnenraums (20) des Halterahmens (2) und/oder das dem Klemmschenkel (42) zugewandte Ende der Einlegefeder (5) versetzt zum Rahmeninnenraum (20) angeordnet ist.Contact insert according to one of the preceding claims, characterized in that the insertion spring (5) at its the clamping leg (42) facing the end has a greater width than the width of the frame interior (20) of the holding frame (2) and / or the clamping leg (42 ) facing the end of the loading spring (5) offset from the frame interior (20) is arranged. Federkraftanschlussklemme (1) mit wenigstens einem Kontakteinsatz nach einem der vorhergehenden Ansprüche.Spring-cage terminal (1) with at least one contact insert according to one of the preceding claims.
EP17176894.8A 2016-06-23 2017-06-20 Contact insert of a spring force terminal block and spring force terminal block Active EP3261185B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016111536.3A DE102016111536A1 (en) 2016-06-23 2016-06-23 Contact insert of a spring-loaded connection terminal and thus formed spring-force connection terminal

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EP3261185A1 true EP3261185A1 (en) 2017-12-27
EP3261185B1 EP3261185B1 (en) 2019-11-27

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US (1) US10141661B2 (en)
EP (1) EP3261185B1 (en)
CN (1) CN207233997U (en)
DE (1) DE102016111536A1 (en)

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Also Published As

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DE102016111536A1 (en) 2017-12-28
EP3261185B1 (en) 2019-11-27
CN207233997U (en) 2018-04-13
US20170373406A1 (en) 2017-12-28
US10141661B2 (en) 2018-11-27

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