EP0898325A1 - Electrical spring force terminal - Google Patents

Electrical spring force terminal Download PDF

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Publication number
EP0898325A1
EP0898325A1 EP97114045A EP97114045A EP0898325A1 EP 0898325 A1 EP0898325 A1 EP 0898325A1 EP 97114045 A EP97114045 A EP 97114045A EP 97114045 A EP97114045 A EP 97114045A EP 0898325 A1 EP0898325 A1 EP 0898325A1
Authority
EP
European Patent Office
Prior art keywords
clamping spring
spring
current bar
clamping
tongue
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
EP97114045A
Other languages
German (de)
French (fr)
Other versions
EP0898325B1 (en
Inventor
Ralf Dipl.-Ing. Geske
Hervé Grillot
Jean-Luc Bouchard
Christian Pichard
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
Schneider Electric SE
Original Assignee
Phoenix Contact GmbH and Co KG
Schneider Electric SE
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES97114045T priority Critical patent/ES2216086T3/en
Application filed by Phoenix Contact GmbH and Co KG, Schneider Electric SE, Schneider Electric Industries SAS filed Critical Phoenix Contact GmbH and Co KG
Priority to DE59711449T priority patent/DE59711449D1/en
Priority to EP97114045A priority patent/EP0898325B1/en
Priority to AT97114045T priority patent/ATE262737T1/en
Priority to US09/129,171 priority patent/US5993270A/en
Priority to JP22887298A priority patent/JP3307881B2/en
Priority to CN98118424A priority patent/CN1093989C/en
Publication of EP0898325A1 publication Critical patent/EP0898325A1/en
Application granted granted Critical
Publication of EP0898325B1 publication Critical patent/EP0898325B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R4/48455Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar insertion of a wire only possible by pressing on the spring

Definitions

  • the invention relates to an electrical spring clamp with one bent from a flat metal strip Clamp spring and with a current bar to which the clamp spring can be applied with a bias, for which the clamping spring one end leg of a tongue of the current bar protruding, elongated to move the end leg Has a window, one end edge of which may be below Pinching an electrical conductor on the Current bar tongue supports under the spring force, and for what the current bar is an abutment to support the other End portion of the clamping spring, which between the End leg and the end portion forms a flexure.
  • the invention is therefore based on the object of a spring-loaded terminal of the type mentioned at the outset to create the is more simply constructed and easier to assemble.
  • This task is of the generic type in a spring-loaded terminal Art solved according to the invention in that the Clamping spring in the area of its flexible joint essentially in Form of a circular arc section is bent and at least here over a semicircle or approximate semicircle runs away and that the end leg as well as the end section the clamping spring from the open side of the approximately circular arc Bend joint bent away and the tongue as well as that Abutment of the current bar arranged in an adapted position are.
  • the clamping spring essentially that in their central bending area approximately is formed as an open ring on one side, whereby the mutually bent ends of the clamping spring, that is the end leg having the window and the end section, by hand, reducing the size of the open side of the flexible joint can be compressed so that the clamping spring between the tongue and the abutment of the current bar can hang. After letting go, it widens Clamping spring under its spring force and secures itself under Voltage automatically between the current bar tongue and the abutment.
  • there is a particularly simple, Manufacturing-friendly shape of the clamping spring since it is together intertwined or curled spring sections does not exist.
  • the central bending joint of the clamping spring approximately along of a three-quarter circle. This results in a still sufficient Opening width on the open side of the clamping spring, um to be able to compress them at their ends during assembly.
  • the Clamping spring which is formed from a flat metal band, is not circular, but cylindrical, and it here is just the outline of the with its range upright clamping spring meant that also with a Cylinder is circular.
  • an embodiment of the invention with the window provided end leg of the clamping spring approximately in the direction of Tangent to the over the open side of the bending leg theoretically extended circular arc.
  • the window provided end leg of the clamping spring approximately in the direction of Tangent to the over the open side of the bending leg theoretically extended circular arc.
  • the clamping spring is actuated in the case of the invention Spring clamp by pressing on the free end of the the window having the end leg of the clamping spring, the accordingly in the tangential direction to the circular arc shape of the bending joint of the clamping spring. So that the clamping spring both when compressing and especially when rebounding maintains their predetermined position, can on the current bar special form locking devices are provided. On the one hand, this can be done on the current bar itself or on its Angling up to the width of the clamping spring protruding support part with a guide contour for the Engagement of the clamping spring can be arranged. On the other hand can be seen in the execution of the abutment in the form of a tab angled from the current bar on its contact side one adapted to the end portion of the clamp spring Contour in front.
  • FIG. 1 shows a terminal housing 1 in which a A plurality of spring clips is arranged. Any of these Spring-loaded terminals are in a cavity 2 in the housing 1 housed, the introduction of each to be clamped electrical conductor through on the side of the housing 1 arranged openings 3 takes place.
  • a current bar 4 is inserted, on which a prestressed clamping spring 5 is arranged is.
  • the current bar 4 and the clamping spring 6, as in 1 can be seen, represent a preassembled unit represents, the two individual parts in Figures 2 and 3 are reproduced.
  • the clamping spring has 6 a central, bent area, which a bending joint 6 represents.
  • the flexure 6 has the basic shape of one Three-quarters of a closed ring, corresponding to one Has opening side 7, depending on whether the clamping spring 5 is excited or not, a lesser or a greater Width.
  • the bending of the flexible joint 6 runs essentially along an arc of a circle, being Deviations from the exact circular shape can result in what depends on whether the clamping spring 5 a more or less tense or relaxed.
  • the clamping spring 5 is shown in a relaxed position, while in the installation position shown in Fig. 1 is in a prestressed state.
  • This tongue 10 of the current bar 4 has an inner or lower clamping side 13, as shown in FIG. 3 emerges.
  • On this clamping side 13 of the current bar tongue 10 supports the clamping spring 5 with the front edge 12 of the Window 9 in the end leg 8 under the spring force, wherein here if necessary between the front edge 12 and the Clamping side 13 an electrical conductor is clamped.
  • a push button 23 is in the housing 1 a guide piece 24 is slidably supported the clamping spring 5 with the front end of its end leg 8 this guide piece 24 of the push button 23 supports what is shown in Fig. 1.
  • the main part of the current bar 4 and the clamping spring 5 are arranged laterally next to each other, essentially lies so the main part of the current bar 4 parallel to that Plane by the circular arc section of the flexure 6 of the clamping spring 5 is clamped. So that the clamping spring 5 can be held by the current bar 4, are from there corresponding support devices in the aforementioned, of the circular arc shape of the flexure 6 of the clamping spring 5 Level before. This can be seen particularly well in Fig. 3.
  • the current bar tongue 10 is the flexible joint 6
  • Cross bend 11 arranged from the current bar 4 is bent at right angles and in its longitudinal direction approximately at right angles to the end leg 8 the clamping spring 5 extends in the assembled position.
  • the clamping spring 5 has at its second End an end portion 14, which is also from the open side 7 of the flexible joint is bent away to the outside. This overlaps the clamping spring 5 in the installed position Abutment 15, which has the shape of a right angle from Current bar has 4 bent tab.
  • the end section 14 the clamping spring 5 overlaps the one lying at the top Narrow side of the abutment 15, and here is a receiving contour 16 in the width of the end portion 14 of the clamping spring 5 provided for a positive reception in the transverse direction the end portion 14 of the clamping spring 5 provides.
  • Each according to the spatial position of the abutment 15 on the current bar 4 can be between the circularly bent bending joint 6 and the end portion 14 of the clamping spring 5 is a straight one Section 17 are located at a given curvature of the metal strip forming the clamping spring 5 in the area of the flexure 6 a sufficient width of the open side 7 ensure.
  • a similar form locking or guidance can in lateral vertex of the flexure 6 for the Clamping spring 5 can be provided.
  • This is on the current bar 4 itself or at its bend 11 a support part 18 above molded on, which is on the side of the flexure 6 of the Clamping spring 5 passes and a larger width than that Has spring 5.
  • At the free end of this support member 18 is a receiving contour on the side facing the flexible joint 6 16 arranged, in which the clamping spring 5 with her Flexible joint 6 can engage such that an undesirable Moving the clamping spring 5 prevented in its width direction is.
  • the bend 11 and the support part 18 enclosed Interior of the current bar 4 hooked under pretension be by looking at the free ends of the end leg 8 and the end section 14 of the clamping spring 5 presses, after which one easily engages the window 9 of the end leg 8 bring with the current bar tongue 10 and with the release the clamping spring 5 the end portion 14 in the receiving contour Attach 16 of abutment 15 to current bar 4 can, with which it is fixed to the current bar 4 biased.
  • the entire housing 1 with all spring clips can For example, be placed on a circuit board for connection of the respective current bar 4 serves an after it Contact pin 7 arranged below above above
  • Contact pin 7 arranged below above
  • an outwardly projecting latching tongue 21 is provided 3, which can be seen in FIG a through opening 22 shown in FIG. 1 in the housing 1 intervenes, through which a test pin also passes attached to the support part 18 integral with the current bar 4 can be.

Abstract

The terminal includes a clamping spring (5) bent in an arc section and extending beyond a semicircle. The end shank (8) and the end section (14) of the clamping spring are bent away from the open side (7) of the bent part (6). A tongue (10) and counter plate (15) for a current bar (4) are arranged in a suitable position.

Description

Die Erfindung bezieht sich auf eine elektrische Federkraftklemme mit einer aus einem flachen Metallstreifen gebogenen Klemmfeder und mit einem Strombalken, an den die Klemmfeder mit einer Vorspannung ansetzbar ist, wozu die Klemmfeder an ihrem einen Endschenkel ein von einer Zunge des Strombalkens durchragtes, zum Verschieben des Endschenkels längliches Fenster hat, dessen eine Stirnkante gegebenenfalls unter Einklemmen eines elektrischen Leiters sich an der Strombalkenzunge unter der Federkraft abstützt, und wozu der Strombalken ein Widerlager zur Abstützung des anderen Endabschnitts der Klemmfeder aufweist, die zwischen dem Endschenkel und dem Endabschnitt ein Biegegelenk bildet.The invention relates to an electrical spring clamp with one bent from a flat metal strip Clamp spring and with a current bar to which the clamp spring can be applied with a bias, for which the clamping spring one end leg of a tongue of the current bar protruding, elongated to move the end leg Has a window, one end edge of which may be below Pinching an electrical conductor on the Current bar tongue supports under the spring force, and for what the current bar is an abutment to support the other End portion of the clamping spring, which between the End leg and the end portion forms a flexure.

In bekannter Ausführung solcher Federkraftklemmen ist die Klemmfeder ein geschlossenes oder sogar verschlungenes Gebilde, wie aus dem deutschen Gebrauchsmuster DE 295 14 509 U1 beispielhaft hervorgeht. Zum einen ist hierdurch eine aufwendige Herstellung der Klemmfeder bedingt und zum anderen ergibt sich eine schwierige Montage, weil die einander überlappenden oder einander durchgreifenden Endabschnitte der Klemmfeder ein Zusammenfügen mit dem Strombalken, insbesondere ein Durchstecken der Strombalkenzunge durch das in dem betreffenden Endschenkel vorgesehene Fenster behindern.In a known version of such spring clamps Clamping spring a closed or even convoluted structure, as from the German utility model DE 295 14 509 U1 emerges as an example. For one thing, this is one time-consuming production of the clamping spring and the other there is a difficult assembly because of each other overlapping or interpenetrating end sections the clamping spring joining together with the current bar, in particular inserting the current bar tongue through the obstruct windows provided in the relevant end leg.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Federkraftklemme der eingangs genannten Art zu schaffen, die einfacher aufgebaut und leichter zu montieren ist. The invention is therefore based on the object of a spring-loaded terminal of the type mentioned at the outset to create the is more simply constructed and easier to assemble.

Diese Aufgabe wird bei einer Federkraftklemme der gattungsgemäßen Art nach der Erfindung dadurch gelöst, daß die Klemmfeder im Bereich ihres Biegegelenks im wesentlichen in Form eines Kreisbogenabschnittes gebogen ist und hier zumindest über einen Halbkreis oder angenäherten Halbkreis hinweg verläuft und daß der Endschenkel sowie der Endabschnitt der Klemmfeder von der Offenseite des etwa kreisbogenförmigen Biegegelenks weggebogen und die Zunge sowie das Widerlager des Strombalkens in daran angepaßter Lage angeordnet sind.This task is of the generic type in a spring-loaded terminal Art solved according to the invention in that the Clamping spring in the area of its flexible joint essentially in Form of a circular arc section is bent and at least here over a semicircle or approximate semicircle runs away and that the end leg as well as the end section the clamping spring from the open side of the approximately circular arc Bend joint bent away and the tongue as well as that Abutment of the current bar arranged in an adapted position are.

Für die Erfindung ist die besondere Gestaltung der Klemmfeder wesentlich, die in ihrem zentralen Biegebereich in etwa als an einer Seite offener Ring ausgebildet ist, wodurch die voneinander weggebogenen Enden der Klemmfeder, also der das Fenster aufweisende Endschenkel und der Endabschnitt, von Hand unter Verkleinerung der Offenseite des Biegegelenks zusammengedrückt werden können, damit man die Klemmfeder zwischen der Zunge und dem Widerlager des Strombalkens einhängen kann. Nach dem Loslassen weitet sich die Klemmfeder unter ihrer Federkraft auf und sichert sich unter Spannung selbstätig zwischen der Strombalkenzunge und dem Widerlager. Zudem ergibt sich eine besonders einfache, fertigungsgünstige Gestalt der Klemmfeder, da es miteinander verschlungene oder ineinander eingerollte Federabschnitte nicht gibt.For the invention is the special design of the clamping spring essentially that in their central bending area approximately is formed as an open ring on one side, whereby the mutually bent ends of the clamping spring, that is the end leg having the window and the end section, by hand, reducing the size of the open side of the flexible joint can be compressed so that the clamping spring between the tongue and the abutment of the current bar can hang. After letting go, it widens Clamping spring under its spring force and secures itself under Voltage automatically between the current bar tongue and the abutment. In addition, there is a particularly simple, Manufacturing-friendly shape of the clamping spring, since it is together intertwined or curled spring sections does not exist.

In vorteilhafter Ausgestaltung nach der Erfindung erstreckt sich das zentrale Biegegelenk der Klemmfeder etwa entlang eines Dreiviertel-Kreises. Damit ergibt sich eine noch genügende Öffnungsweite an der Offenseite der Klemmfeder, um sie an ihren Enden bei der Montage zusammendrücken zu können. Im übrigen versteht es sich, daß genau genommen die Klemmfeder, die aus einem flachen Metallband geformt ist, nicht kreisbogenförmig sondern zylinderförmig ist, und es ist hier lediglich die Grundrißgestalt der mit ihrer Bandbreite aufrechten Klemmfeder gemeint, die auch bei einem Zylinder kreisförmig ist.In an advantageous embodiment according to the invention the central bending joint of the clamping spring approximately along of a three-quarter circle. This results in a still sufficient Opening width on the open side of the clamping spring, um to be able to compress them at their ends during assembly. Incidentally, it goes without saying that the Clamping spring, which is formed from a flat metal band, is not circular, but cylindrical, and it here is just the outline of the with its range upright clamping spring meant that also with a Cylinder is circular.

Für die Erzielung einer maximalen Klemmkraft wird entsprechend einer Ausgestaltung der Erfindung der mit dem Fenster versehene Endschenkel der Klemmfeder etwa in Richtung der Tangente an den über die Offenseite des Biegeschenkels hinweg theoretisch verlängerten Kreisbogen angeordnet. Zur räumlichen Anpassung innerhalb des Gehäuses der betreffenden Federkraftklemme kann es vorteilhaft sein, zwischen dem Biegegelenk und dem nach außen abgebogenen Endabschnitt einen im wesentlichen gerade verlaufenden Abschnitt der Klemmfeder anzuordnen, ohne daß hier der Grundgedanke der Erfindung verlassen wird. Im Hinblick auf eine raumsparende Anordnung ist es zweckmäßig, den Strombalken seitlich neben der Klemmfeder parallel zu der von deren Biegegelenk aufgespannten Kreisebene anzuordnen, wobei vom Strombalken sowohl eine Abwinklung mit der daran vorstehenden Strombalkenzunge abgebogen als auch das Widerlager abgewinkelt ist.In order to achieve a maximum clamping force, an embodiment of the invention with the window provided end leg of the clamping spring approximately in the direction of Tangent to the over the open side of the bending leg theoretically extended circular arc. For spatial adjustment within the housing of the concerned Spring clamp it can be advantageous between the Bend joint and the outward bent end section one essentially straight section of the Arrange spring clip without the basic idea of Invention is left. With a view to saving space Arrangement, it is useful to the side of the current bar the clamping spring parallel to that spanned by their flexible joint Arrange circular level, both from the current bar an angling with the current bar tongue protruding thereon bent as well as the abutment is angled.

Die Betätigung der Klemmfeder erfolgt bei der erfindungsgemäßen Federkraftklemme durch Druck auf das freie Ende des das Fenster aufweisenden Endschenkels der Klemmfeder, der entsprechend in tangentialer Richtung zur Kreisbogenform des Biegegelenks der Klemmfeder erfolgt. Damit die Klemmfeder sowohl beim Einfedern als auch insbesondere beim Rückfedern ihre vorbestimmte Lage beibehält, können am Strombalken besondere Formschlußsicherungen vorgesehen werden. Zum einen kann hierzu am Strombalken selbst oder an seiner Abwinklung ein bis über die Breite der Klemmfeder hinweg vorstehendes Stützteil mit einer Führungskontur für den Eingriff der Klemmfeder angeordnet werden. Zum anderen sieht man bei der Ausführung des Widerlagers in Gestalt einer vom Strombalken abgewinkelten Lasche an deren Anlageseite eine an den Endabschnitt der Klemmfeder angepaßte Aufnahmekontur vor.The clamping spring is actuated in the case of the invention Spring clamp by pressing on the free end of the the window having the end leg of the clamping spring, the accordingly in the tangential direction to the circular arc shape of the bending joint of the clamping spring. So that the clamping spring both when compressing and especially when rebounding maintains their predetermined position, can on the current bar special form locking devices are provided. On the one hand, this can be done on the current bar itself or on its Angling up to the width of the clamping spring protruding support part with a guide contour for the Engagement of the clamping spring can be arranged. On the other hand can be seen in the execution of the abutment in the form of a tab angled from the current bar on its contact side one adapted to the end portion of the clamp spring Contour in front.

Die Erfindung wird nachfolgend anhand der Zeichnung an einem Ausführungsbeispiel noch näher erläutert. Dabei zeigen:

Fig. 1
in perspektivischer Darstellung ein aufgeschnittenes Klemmengehäuse mit einer sichtbar gemachten Federkraftklemme,
Fig. 2
eine perspektivische Darstellung der Klemmfeder der Federkraftklemme nach Fig. 1 und
Fig. 3
eine perspektivische Darstellung des Strombalkens der Federkraftklemme nach Fig. 1.
The invention is explained in more detail below with reference to the drawing using an exemplary embodiment. Show:
Fig. 1
a perspective view of a cut terminal housing with a spring clamp made visible,
Fig. 2
a perspective view of the clamping spring of the spring clip according to FIGS. 1 and
Fig. 3
2 shows a perspective view of the current bar of the spring-loaded terminal according to FIG. 1.

Im einzelnen zeigt Fig. 1 ein Klemmengehäuse 1, in dem eine Mehrzahl von Federkraftklemmen angeordnet ist. Jede dieser Federkraftklemmen ist in einem Hohlraum 2 in dem Gehäuse 1 untergebracht, wobei die Einführung des Jeweils zu klemmenden elektrischen Leiters durch seitlich an dem Gehäuse 1 angeordnete Öffnungen 3 erfolgt. Bei der dargestellten, stehenden Anordnung ist jeweils von unten her in den betreffenden Hohlraum 2 des Gehäuses 1 ein Strombalken 4 eingeführt, an dem eine vorgespannte Klemmfeder 5 angeordnet ist. Der Strombalken 4 und die Klemmfeder 6, so wie sie in Fig. 1 zu erkennen sind, stellen eine vormontierbare Einheit dar, deren zwei Einzelteile in den Figuren 2 und 3 wiedergegeben sind.1 shows a terminal housing 1 in which a A plurality of spring clips is arranged. Any of these Spring-loaded terminals are in a cavity 2 in the housing 1 housed, the introduction of each to be clamped electrical conductor through on the side of the housing 1 arranged openings 3 takes place. In the illustrated standing arrangement is from below in the relevant Cavity 2 of the housing 1 a current bar 4 is inserted, on which a prestressed clamping spring 5 is arranged is. The current bar 4 and the clamping spring 6, as in 1 can be seen, represent a preassembled unit represents, the two individual parts in Figures 2 and 3 are reproduced.

Wie insbesondere Fig. 2 kenntlich macht, hat die Klemmfeder 6 einen zentralen, gebogenen Bereich, der ein Biegegelenk 6 darstellt. Das Biegegelenk 6 hat die Grundform eines zu Dreivierteln geschlossenen Ringes, der entsprechend eine Öffnungsseite 7 hat, die je nachdem, ob die Klemmfeder 5 gespannt ist oder nicht, eine geringere oder eine größere Weite hat. Die Biegung des Biegegelenks 6 verläuft im wesentlichen entlang einem Kreisbogenabschnitt, wobei sich Abweichungen von der exakten Kreisform ergeben können, was mit davon abhängt, ob die Klemmfeder 5 eine mehr oder weniger gespannte oder eine entspannte Lage einnimmt. In Fig. 2 ist die Klemmfeder 5 in entspannter Lage wiedergegeben, während sie in der in Fig. 1 dargestellten Einbaulage sich in einem vorgespannten Zustand befindet.As can be seen in particular in FIG. 2, the clamping spring has 6 a central, bent area, which a bending joint 6 represents. The flexure 6 has the basic shape of one Three-quarters of a closed ring, corresponding to one Has opening side 7, depending on whether the clamping spring 5 is excited or not, a lesser or a greater Width. The bending of the flexible joint 6 runs essentially along an arc of a circle, being Deviations from the exact circular shape can result in what depends on whether the clamping spring 5 a more or less tense or relaxed. In Fig. 2 the clamping spring 5 is shown in a relaxed position, while in the installation position shown in Fig. 1 is in a prestressed state.

Die aus einem flachen Metallband, insbesondere Stahlband, bestehende Klemmfeder 5 hat an ihrem einen Ende einen Endschenkel 8, der im wesentlichen in Richtung einer Tangente verläuft, die auf die Kreisform des Biegegelenks 6 bezogen ist, wenn man sich hier den Kreis über die Offenseite 7 der Klemmfeder 5 hinweg vervollständigt denkt. Gegenüber dem Biegegelenk 6 ist der Endschenkel 8 der Klemmfeder 5 nach außen hin abgebogen, somit weist der Endschenkel 8 der Klemmfeder 5 von der Offenseite 7 weg.The from a flat metal band, especially steel band, existing clamping spring 5 has an end leg at one end 8, essentially in the direction of a tangent runs, which refers to the circular shape of the flexure 6 is when you look at the circle over the open side 7 of the Clamping spring 5 completes thinks. Compared to the Bending joint 6 is the end leg 8 of the clamping spring 5 bent outside, so the end leg 8 of the Clamping spring 5 away from the open side 7.

Im Endschenkel 8 der Klemmfeder 5 befindet sich ein Fenster 9, das an der zur Offenseite 7 des Biegegelenks 6 hin liegenden Seite eine Stirnkante 12 als Klemmkante hat. In der mit dem Strombalken 4 zusammengefügten Anordnung ragt durch dieses Fenster 9 eine Strombalkenzunge 10 hindurch, wie in Fig. 1 veranschaulicht ist. Diese Zunge 10 des Strombalkens 4 hat eine innere, bzw. untere Klemmseite 13, wie aus Fig. 3 hervorgeht. An dieser Klemmseite 13 der Strombalkenzunge 10 stützt sich die Klemmfeder 5 mit der Stirnkante 12 des Fensters 9 im Endschenkel 8 unter der Federkraft ab, wobei hier gegebenenfalls zwischen der Stirnkante 12 und der Klemmseite 13 ein elektrischer Leiter festgeklemmt ist. Damit ein solcher Leiter in die beschriebene Klemmlage eingeführt werden kann, ist der Endschenkel 8 der Klemmfeder 5 etwa in Tangentialrichtung zum kreisbogenförmigen Biegegelenk 6 verschieblich, wozu das Fenster 9 im Endschenkel 8 eine längliche Gestalt hat, damit der Endschenkel 8 quer zu der Strombalkenzunge 10 bewegt werden kann. Dadurch kommt die Stirnkante 12 des Fensters 9 des Endschenkels 8 von der Klemmseite 13 der Strombalkenzunge 10 frei, damit zwischen diese beiden Klemmpartner der Leiter eingeführt werden kann. Aufgrund des Verschiebens des Endabschnittes 8 spannt sich die Klemmfeder 5 weiter, wobei sich die Weite der Offenseite 7 und ebenfalls der Durchmesser des Biegegelenks 6 entsprechend verringert. There is a window in the end leg 8 of the clamping spring 5 9, which lies on the open side 7 of the flexible joint 6 Side has an end edge 12 as a clamping edge. In the with the current bar 4 assembled arrangement protrudes this window 9 through a current bar tongue 10, as in Fig. 1 is illustrated. This tongue 10 of the current bar 4 has an inner or lower clamping side 13, as shown in FIG. 3 emerges. On this clamping side 13 of the current bar tongue 10 supports the clamping spring 5 with the front edge 12 of the Window 9 in the end leg 8 under the spring force, wherein here if necessary between the front edge 12 and the Clamping side 13 an electrical conductor is clamped. In order to such a conductor is inserted into the described clamping position can be, the end leg 8 of the clamping spring 5th approximately in the tangential direction to the arcuate bending joint 6 displaceable, for which the window 9 in the end leg 8 has an elongated shape so that the end leg 8 transversely the current bar tongue 10 can be moved. Because of that comes the front edge 12 of the window 9 of the end leg 8 of the Terminal side 13 of the current bar tongue 10 free, so between these two clamping partners of the ladder are introduced can. Due to the displacement of the end section 8 tensions the clamping spring 5 continues, the width of the open side 7 and also the diameter of the flexible joint 6 reduced accordingly.

Für die Klemmung und Abklemmung eines Leiters erfolgt das Ein- oder Niederdrücken des Endschenkels 8 der Klemmfeder 5 von außen. Dazu ist im Gehäuse 1 ein Drückerknopf 23 mit einem Führungsstück 24 verschieblich gelagert, wobei sich die Klemmfeder 5 mit dem Stirnende ihres Endschenkels 8 an diesem Führungsstück 24 des Drückerknopfs 23 abstützt, was in Fig. 1 dargestellt ist.This is done for clamping and disconnecting a conductor Pressing the end leg 8 of the clamping spring 5 in or out from the outside. For this purpose, a push button 23 is in the housing 1 a guide piece 24 is slidably supported the clamping spring 5 with the front end of its end leg 8 this guide piece 24 of the push button 23 supports what is shown in Fig. 1.

Der Hauptteil des Strombalkens 4 und die Klemmfeder 5 sind seitlich nebeneinander angeordnet, im wesentlichen liegt also der Hauptteil des Strombalkens 4 parallel zu derjenigen Ebene, die von dem Kreisbogenabschnitt des Biegegelenks 6 der Klemmfeder 5 aufgespannt wird. Damit die Klemmfeder 5 von dem Strombalken 4 gehalten werden kann, stehen von dort entsprechende Stützeinrichtungen in die vorerwähnte, von der Kreisbogenform des Biegegelenks 6 der Klemmfeder 5 aufgespannten Ebene vor. Dies erkennt man besonders gut in Fig. 3. So ist die Strombalkenzunge 10 an einer das Biegegelenk 6 oben übergreifenden Abwinklung 11 angeordnet, die vom Strombalken 4 rechtwinklig abgebogen ist und sich in ihrer Längsrichtung etwa rechtwinklig zu dem Endschenkel 8 der Klemmfeder 5 in der zusammengefügten Lage erstreckt. Zur Gegenabstützung hat die Klemmfeder 5 an ihrem zweiten Ende einen Endabschnitt 14, der ebenfalls von der Offenseite 7 des Biegegelenks weg nach außen hin abgebogen ist. Hiermit übergreift die Klemmfeder 5 in der Einbaulage ein Widerlager 15, das die Gestalt einer rechtwinklig vom Strombalken 4 abgebogenen Lasche hat. Der Endabschnitt 14 der Klemmfeder 5 übergreift die nach oben hin liegende Schmalseite des Widerlagers 15, und hier ist eine Aufnahmekontur 16 in der Breite des Endabschnitts 14 der Klemmfeder 5 vorgesehen, der für eine formschlüssige Aufnahme in Querrichtung des Endabschnittes 14 der Klemmfeder 5 sorgt. Je nach der räumlichen Lage des Widerlagers 15 am Strombalken 4 kann sich zwischen dem kreisförmig gebogenen Biegegelenk 6 und dem Endabschnitt 14 der Klemmfeder 5 ein gerade verlaufender Abschnitt 17 befinden, um bei vorgegebener Krümmung des die Klemmfeder 5 bildenden Metallstreifens im Bereich des Biegegelenks 6 eine ausreichende Weite der Offenseite 7 sicherzustellen.The main part of the current bar 4 and the clamping spring 5 are arranged laterally next to each other, essentially lies so the main part of the current bar 4 parallel to that Plane by the circular arc section of the flexure 6 of the clamping spring 5 is clamped. So that the clamping spring 5 can be held by the current bar 4, are from there corresponding support devices in the aforementioned, of the circular arc shape of the flexure 6 of the clamping spring 5 Level before. This can be seen particularly well in Fig. 3. Thus, the current bar tongue 10 is the flexible joint 6 Above cross bend 11 arranged from the current bar 4 is bent at right angles and in its longitudinal direction approximately at right angles to the end leg 8 the clamping spring 5 extends in the assembled position. For counter support, the clamping spring 5 has at its second End an end portion 14, which is also from the open side 7 of the flexible joint is bent away to the outside. This overlaps the clamping spring 5 in the installed position Abutment 15, which has the shape of a right angle from Current bar has 4 bent tab. The end section 14 the clamping spring 5 overlaps the one lying at the top Narrow side of the abutment 15, and here is a receiving contour 16 in the width of the end portion 14 of the clamping spring 5 provided for a positive reception in the transverse direction the end portion 14 of the clamping spring 5 provides. Each according to the spatial position of the abutment 15 on the current bar 4 can be between the circularly bent bending joint 6 and the end portion 14 of the clamping spring 5 is a straight one Section 17 are located at a given curvature of the metal strip forming the clamping spring 5 in the area of the flexure 6 a sufficient width of the open side 7 ensure.

Eine ähnliche Formschlußsicherung oder -führung kann im seitlichen Scheitelbereich des Biegegelenks 6 für die Klemmfeder 5 vorgesehen werden. Dazu ist an den Strombalken 4 selbst oder an seine Abwinklung 11 ein Stützteil 18 vorstehend angeformt, welches seitlich am Biegegelenk 6 der Klemmfeder 5 vorbeireicht und eine größere Breite als die Klemmfeder 5 hat. Am freien Ende dieses Stützteils 18 ist auf der dem Biegegelenk 6 zugekehrten Seite eine Aufnahmekontur 16 angeordnet, in die die Klemmfeder 5 mit ihrem Biegegelenk 6 derart eingreifen kann, daß ein unerwünschtes Verschieben der Klemmfeder 5 in ihrer Breitenrichtung unterbunden ist. So kann die Klemmfeder 5 vor dem Einbringen des Strombalkens 4 in das Gehäuse 1 in den von dem Widerlager 15, der Abwinklung 11 und dem Stützteil 18 umschlossenen Innenraum des Strombalkens 4 unter Vorspannung eingehängt werden, indem man auf die freien Enden des Endschenkels 8 und des Endabschnittes 14 der Klemmfeder 5 drückt, wonach man leicht das Fenster 9 des Endschenkels 8 in Eingriff mit der Strombalkenzunge 10 bringen und mit dem Loslassen der Klemmfeder 5 den Endabschnitt 14 in die Aufnahmekontur 16 des Widerlagers 15 am Strombalken 4 einhängen kann, womit sie am Strombalken 4 vorgespannt fixiert ist.A similar form locking or guidance can in lateral vertex of the flexure 6 for the Clamping spring 5 can be provided. This is on the current bar 4 itself or at its bend 11 a support part 18 above molded on, which is on the side of the flexure 6 of the Clamping spring 5 passes and a larger width than that Has spring 5. At the free end of this support member 18 is a receiving contour on the side facing the flexible joint 6 16 arranged, in which the clamping spring 5 with her Flexible joint 6 can engage such that an undesirable Moving the clamping spring 5 prevented in its width direction is. So the clamping spring 5 before insertion of the current bar 4 in the housing 1 in the of the abutment 15, the bend 11 and the support part 18 enclosed Interior of the current bar 4 hooked under pretension be by looking at the free ends of the end leg 8 and the end section 14 of the clamping spring 5 presses, after which one easily engages the window 9 of the end leg 8 bring with the current bar tongue 10 and with the release the clamping spring 5 the end portion 14 in the receiving contour Attach 16 of abutment 15 to current bar 4 can, with which it is fixed to the current bar 4 biased.

Das gesamte Gehäuse 1 mit sämtlichen Federkraftklemmen kann beispielsweise auf eine Platine aufgesetzt werden, zum Anschluß des jeweiligen Strombalkens 4 dient ein daran nach unten vorstehend angeordneter Kontaktstift 7. Für die Sicherung des Strombalkens 4 im Gehäuse 1 kann an dessen Stützteil 18 eine nach außen vorstehende Rastzunge 21 vorgesehen werden, die in Fig. 3 zu erkennen ist und die in eine in Fig. 1 gezeigte Durchgangsöffnung 22 im Gehäuse 1 eingreift, durch die hindurch zugleich auch ein Prüfstift an dem mit dem Strombalken 4 einstückigen Stützteil 18 angesetzt werden kann.The entire housing 1 with all spring clips can For example, be placed on a circuit board for connection of the respective current bar 4 serves an after it Contact pin 7 arranged below above For securing of the current bar 4 in the housing 1 can at the Support part 18 an outwardly projecting latching tongue 21 is provided 3, which can be seen in FIG a through opening 22 shown in FIG. 1 in the housing 1 intervenes, through which a test pin also passes attached to the support part 18 integral with the current bar 4 can be.

Claims (7)

Elektrische Federkraftklemme mit einer aus einem flachen Metallstreifen gebogenen Klemmfeder (5) und mit einem Strombalken (4), an den die Klemmfeder (5) mit einer Vorspannung ansetzbar ist, wozu die Klemmfeder (5) an ihrem einen Endschenkel (8) ein von einer Zunge (10) des Strombalkens (4) durchragtes, zum Verschieben des Endschenkels (8) längliches Fenster (9) hat, dessen eine Stirnkante (12) gegebenenfalls unter Einklemmen eines elektrischen Leiters sich an der Strombalkenzunge (10) unter der Federkraft abstützt, und wozu der Strombalken (4) ein Widerlager (15) zur Abstützung des anderen Endabschnittes (14) der Klemmfeder (5) aufweist, die zwischen dem Endschenkel (8) und dem Endabschnitt (14) ein Biegegelenk (6) bildet,
dadurch gekennzeichnet,
daß die Klemmfeder (5) im Bereich ihres Biegegelenks (6) im wesentlichen in Form eines Kreisbogenabschnittes gebogen ist und hier zumindest über einen Halbkreis oder angenäherten Halbkreis hinweg verläuft und daß der Endschenkel (8) sowie der Endabschnitt (14) der Klemmfeder (5) von der Offenseite (7) des etwa kreisbogenförmigen Biegegelenks (6) weggebogen und die Zunge (10) sowie das Widerlager (15) des Strombalkens (4) in daran angepaßter Lage angeordnet sind.
Electrical spring-loaded terminal with a clamping spring (5) bent from a flat metal strip and with a current bar (4) to which the clamping spring (5) can be attached with a pretension, for which purpose the clamping spring (5) on one end leg (8) one of one Tongue (10) of the current bar (4) has a protruding, elongated window (9) for displacing the end leg (8), one end edge (12) of which is supported on the current bar tongue (10) under the spring force, optionally with the pinching of an electrical conductor, and for which purpose the current bar (4) has an abutment (15) for supporting the other end section (14) of the clamping spring (5), which forms a flexible joint (6) between the end leg (8) and the end section (14),
characterized,
that the clamping spring (5) is bent in the area of its flexible joint (6) essentially in the form of a circular arc section and here extends at least over a semicircle or approximate semicircle and that the end leg (8) and the end section (14) of the clamping spring (5) bent away from the open side (7) of the approximately circular-shaped bending joint (6) and the tongue (10) and the abutment (15) of the current bar (4) are arranged in an adapted position thereon.
Federkraftklemme nach Anspruch 1,
dadurch gekennzeichnet,
daß sich das Biegegelenk (6) der Klemmfeder (5) etwa entlang eines Dreiviertel-Kreises erstreckt.
Spring clamp according to claim 1,
characterized,
that the flexible joint (6) of the clamping spring (5) extends approximately along a three-quarter circle.
Federkraftklemme nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der mit dem Fenster (9) versehene Endschenkel (8) der Klemmfeder (5) etwa in Richtung der Tangente an den über die Offenseite (7) des Biegegelenks (6) hinweg verlängerten Kreisbogen angeordnet ist.
Spring clamp according to claim 1 or 2,
characterized,
that the end leg (8) of the clamping spring (5) provided with the window (9) is arranged approximately in the direction of the tangent on the circular arc extended beyond the open side (7) of the flexible joint (6).
Federkraftklemme nach einem der Ansprüche 1 - 3,
dadurch gekennzeichnet,
daß zwischen dem Biegegelenk (6) und dem nach außen abgebogenen Endabschnitt (14) ein im wesentlichen gerade verlaufender Abschnitt (17) der Klemmfeder (5) vorhanden ist.
Spring clamp according to one of claims 1-3,
characterized,
that between the bending joint (6) and the outwardly bent end section (14) there is a substantially straight section (17) of the clamping spring (5).
Federkraftklemme nach einem der Ansprüche 1 - 4,
dadurch gekennzeichnet,
daß der Strombalken (4) seitlich neben der Klemmfeder (5) parallel zu der von deren Biegegelenk (6) aufgespannten Kreisebene angeordnet ist und vom Strombalken (4) eine Abwinklung (11) mit der daran vorstehenden Strombalkenzunge (10) abgebogen sowie das Widerlager (14) abgewinkel ist.
Spring clamp according to one of claims 1-4,
characterized,
that the current bar (4) is arranged laterally next to the clamping spring (5) parallel to the circular plane spanned by its bending joint (6) and from the current bar (4) a bend (11) with the current bar tongue (10) projecting therefrom and the abutment ( 14) is angled.
Federkraftklemme nach Anspruch 5,
dadurch gekennzeichnet,
daß am Strombalken (4) selbst oder an seiner Abwinklung (11) ein bis über die Breite der Klemmfeder (5) hinweg vorstehendes Stützteil (18) mit einer Führungskontur (19) für den Eingriff der Klemmfeder (5) angeordnet ist.
Spring clamp according to claim 5,
characterized,
that a supporting part (18) projecting up to the width of the clamping spring (5) with a guide contour (19) for the engagement of the clamping spring (5) is arranged on the current bar (4) itself or on its bend (11).
Federkraftklemme nach Anspruch 5 oder 6,
dadurch gekennzeichnet,
daß das Widerlager (15) die Gestalt einer vom Strombalken (4) abgewinkelten Lasche hat, die an der Anlageseite für den Endabschnitt (14) der Klemmfeder (5) eine an diese angepaßte Aufnahmekontur (16) hat.
Spring clamp according to claim 5 or 6,
characterized,
that the abutment (15) has the shape of a tab angled from the current bar (4), which has on the contact side for the end section (14) of the clamping spring (5) an adapted to this receiving contour (16).
EP97114045A 1997-08-14 1997-08-14 Electrical spring force terminal Expired - Lifetime EP0898325B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE59711449T DE59711449D1 (en) 1997-08-14 1997-08-14 Electrical spring clamp
EP97114045A EP0898325B1 (en) 1997-08-14 1997-08-14 Electrical spring force terminal
AT97114045T ATE262737T1 (en) 1997-08-14 1997-08-14 ELECTRICAL SPRING CLAMP
ES97114045T ES2216086T3 (en) 1997-08-14 1997-08-14 ELASTIC FORCE ELECTRICAL TERMINAL.
US09/129,171 US5993270A (en) 1997-08-14 1998-08-05 Electric elastic clamp
JP22887298A JP3307881B2 (en) 1997-08-14 1998-08-13 Spring type electric terminal
CN98118424A CN1093989C (en) 1997-08-14 1998-08-13 Spring connecting terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97114045A EP0898325B1 (en) 1997-08-14 1997-08-14 Electrical spring force terminal

Publications (2)

Publication Number Publication Date
EP0898325A1 true EP0898325A1 (en) 1999-02-24
EP0898325B1 EP0898325B1 (en) 2004-03-24

Family

ID=8227218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114045A Expired - Lifetime EP0898325B1 (en) 1997-08-14 1997-08-14 Electrical spring force terminal

Country Status (7)

Country Link
US (1) US5993270A (en)
EP (1) EP0898325B1 (en)
JP (1) JP3307881B2 (en)
CN (1) CN1093989C (en)
AT (1) ATE262737T1 (en)
DE (1) DE59711449D1 (en)
ES (1) ES2216086T3 (en)

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DE29920231U1 (en) * 1999-11-17 2001-04-05 Weidmueller Interface Screwless terminal
DE202007001701U1 (en) * 2007-02-06 2008-06-19 Tridonicatco Connection Technology Gmbh & Co Kg Universal Contact
DE102010024809B4 (en) * 2010-06-23 2013-07-18 Wago Verwaltungsgesellschaft Mbh terminal
EP2678904B1 (en) * 2011-02-22 2019-03-20 Phoenix Contact GmbH & Co. KG Metal part for an electric connecting device

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KR100480196B1 (en) * 2000-08-04 2005-04-06 오므론 가부시키가이샤 Wire connector
USD499072S1 (en) 2002-09-23 2004-11-30 Ria-Btr Produktions Gmbh Clamping connector
US6783385B2 (en) * 2003-02-05 2004-08-31 Tyco Electronics Corporation Electrical connector for securing a wire to a contact
DE102005056325B4 (en) * 2005-11-25 2007-08-30 Phoenix Contact Gmbh & Co. Kg PCB terminal for PCB connection
ITMI20060373A1 (en) * 2006-03-02 2007-09-03 Ilme Spa ELECTRIC MULTIPOLAR CONNECTOR WITH SPRING CONTACTS
DE102006053352B3 (en) * 2006-11-10 2008-04-17 Phoenix Contact Gmbh & Co. Kg Insert, has two spring legs which are components of leg springs connected to each other by bent joint and stayed together at obtuse angle, where one spring leg is inactive and extends inside region of mounting units
US7607953B2 (en) * 2007-11-30 2009-10-27 Tyco Electronics Corporation Spring-loaded contact for electrical conductors
DE202009001488U1 (en) * 2009-02-06 2010-06-24 Weidmüller Interface GmbH & Co. KG Terminal for connecting conductor ends
CN101562282B (en) * 2009-05-19 2011-01-19 宁波高正电子有限公司 Electric connector
CN102376797B (en) * 2011-06-24 2014-03-12 人和光伏科技有限公司 Quick junction box
CN202474257U (en) * 2011-12-22 2012-10-03 泰科电子(上海)有限公司 Elastic holder, contact rail assembly and junction box of a photovoltaic assembly having the contact rail assembly
DE102013103446A1 (en) * 2013-04-05 2014-10-09 Phoenix Contact Gmbh & Co. Kg Connector device
DE102015110868A1 (en) * 2015-07-06 2017-01-12 Phoenix Contact Gmbh & Co. Kg terminal
BE1026101B1 (en) * 2018-03-16 2019-10-14 Phoenix Contact Gmbh & Co Kg Contact element with a contact body and a spring element arranged thereon
CN112167194A (en) * 2019-07-05 2021-01-05 邱文彬 Line leading device for lure pole

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EP2678904B1 (en) * 2011-02-22 2019-03-20 Phoenix Contact GmbH & Co. KG Metal part for an electric connecting device

Also Published As

Publication number Publication date
JPH11154541A (en) 1999-06-08
DE59711449D1 (en) 2004-04-29
CN1208972A (en) 1999-02-24
ES2216086T3 (en) 2004-10-16
CN1093989C (en) 2002-11-06
US5993270A (en) 1999-11-30
JP3307881B2 (en) 2002-07-24
EP0898325B1 (en) 2004-03-24
ATE262737T1 (en) 2004-04-15

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