EP0898325B1 - Electrical spring force terminal - Google Patents

Electrical spring force terminal Download PDF

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Publication number
EP0898325B1
EP0898325B1 EP97114045A EP97114045A EP0898325B1 EP 0898325 B1 EP0898325 B1 EP 0898325B1 EP 97114045 A EP97114045 A EP 97114045A EP 97114045 A EP97114045 A EP 97114045A EP 0898325 B1 EP0898325 B1 EP 0898325B1
Authority
EP
European Patent Office
Prior art keywords
clamping spring
spring
current bar
clamping
section
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.)
Expired - Lifetime
Application number
EP97114045A
Other languages
German (de)
French (fr)
Other versions
EP0898325A1 (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
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 AT97114045T priority Critical patent/ATE262737T1/en
Application filed by Phoenix Contact GmbH and Co KG, Schneider Electric SE filed Critical Phoenix Contact GmbH and Co KG
Priority to DE59711449T priority patent/DE59711449D1/en
Priority to EP97114045A priority patent/EP0898325B1/en
Priority to ES97114045T priority patent/ES2216086T3/en
Priority to US09/129,171 priority patent/US5993270A/en
Priority to CN98118424A priority patent/CN1093989C/en
Priority to JP22887298A priority patent/JP3307881B2/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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    • 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
    • H01R4/48455—Clamped 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 on which the clamp spring can be applied with a bias, for which the clamping spring an end leg with one of one at its first end Tongue of the current bar protrudes to move it End leg has elongated window, one end edge of which if necessary with the pinching of an electrical conductor is supported on the current bar tongue under the spring force, and why the current bar an abutment to support the has an end section at the second end of the clamping spring, the clamping spring in the area between the End leg and the end portion forms a flexure.
  • Such a spring clamp is from document DE 295 14 509 U1 known.
  • the clamping spring is on closed or even intertwined structure.
  • On the one hand is a complex manufacture of the clamping spring conditionally.
  • there is a difficult assembly because they overlap or penetrate each other End sections of the clamping spring joining together with the Current bar, in particular inserting the current bar tongue by that provided in the relevant end leg Obstruct windows.
  • a similar clamp spring of a spring clamp is from the Document DE 196 14 977 A1 known, see the preamble of claim 1.
  • the flexure which over extends an arc of more than 180 degrees.
  • This Bending joint is located at one point of the clamping spring, that of its end leg at one end and its end portion on the other end by attaching to the inner, unfree section of the support leg as well the inner area of the multi-curved spring leg the clamping spring connects.
  • the end legs of the clamp spring which are here at the free ends of the support leg and the spring leg are towards each other to be bent and are arranged adjacent to each other.
  • the invention has for its object a spring clip of the aforementioned type to create the simpler and is easier to assemble.
  • This task is the generic type in a spring-cage terminal Art solved according to the invention in that the Clamping spring in the area of its flexible joint essentially in Form of an extending over more than a semicircular arc Arc section to an open on one side Ring is bent and the end leg and the end section the clamping spring in the direction away from each other and from the Bent away from the approximately circular-shaped bending joint and the tongue as well as the abutment of the current bar are arranged in an adapted position, the end window of the clamping spring provided with the window, for example towards a tangent to the over the open side of the Bending joint extending arc is arranged.
  • the clamping spring essential, which in its central area roughly as Open ring is formed on one side, whereby the ends of the clamping spring bent away from one another, that is to say that End legs with windows and the end section at the other Clamping spring end, by hand while reducing the open side of the flexible joint can be compressed so that you have the clamping spring between the tongue and the abutment of the current bar can hang. After letting go the clamping spring expands under its spring force and secures itself automatically under tension between the current bar tongue and the abutment.
  • There is also a special one simple, inexpensive shape of the clamping spring because it is intertwined or curled up Spring sections are not there. For achieving one maximum clamping force is the end leg provided with the window the clamping spring approximately in the direction of a tangent theoretically across the open side of the bending leg elongated arc.
  • 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 end during assembly.
  • the Clamping spring which is formed from a flat metal band, not cylindrical, but cylindrical, and it here is just a floor plan with its range upright clamping spring meant that also with a Cylinder is circular.
  • 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 flexible joint 6 has the basic shape of a Three-quarters of a closed ring, corresponding to one Has opening side 7, depending on whether the clamping spring 5th is excited or not, a lesser or a greater Width.
  • the bending of the flexible joint 6 runs essentially along a section of a circular arc, with 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.
  • a window is located 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.
  • 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 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 from the 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 above cross-bend 11 arranged from the current bar 4 is bent at right angles and in 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 flexure is bent outwards. 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 section 14 of the clamping spring 5 provides.
  • a similar form locking or guidance can in lateral vertex area 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 protrudes integrally formed 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 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.
  • an outwardly projecting locking 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 dem die Klemmfeder mit einer Vorspannung ansetzbar ist, wozu die Klemmfeder an ihrem ersten Ende einen Endschenkel mit einem von einer Zunge des Strombalkens durchragten, zum Verschieben dieses Endschenkels länglichen 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 eines Endabschnitts am zweiten Ende der Klemmfeder aufweist, wobei die Klemmfeder in dem Bereich 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 on which the clamp spring can be applied with a bias, for which the clamping spring an end leg with one of one at its first end Tongue of the current bar protrudes to move it End leg has elongated window, one end edge of which if necessary with the pinching of an electrical conductor is supported on the current bar tongue under the spring force, and why the current bar an abutment to support the has an end section at the second end of the clamping spring, the clamping spring in the area between the End leg and the end portion forms a flexure.

Eine solche Federkraftklemme ist aus dem Dokument DE 295 14 509 U1 bekannt. In dieser Ausführung ist die Klemmfeder ein geschlossenes oder sogar verschlungenes Gebilde. Zum einen ist hierdurch eine aufwendige Herstellung der Klemmfeder bedingt. 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.Such a spring clamp is from document DE 295 14 509 U1 known. In this version the clamping spring is on closed or even intertwined structure. On the one hand is a complex manufacture of the clamping spring conditionally. Secondly, there is a difficult assembly, because they overlap or penetrate each other End sections of the clamping spring joining together with the Current bar, in particular inserting the current bar tongue by that provided in the relevant end leg Obstruct windows.

Eine ähnliche Klemmfeder einer Federkraftklemme ist aus dem Dokument DE 196 14 977 A1 bekannt, siehe den Oberbegriff des Anspruchs 1. Zwischen dem auf dem Strombalken aufliegenden Auflagerschenkel und einem sich darüber hinweg erstreckenden Federschenkel ist bei dieser Klemmfeder das Biegegelenk angeordnet, welches sich über einen Kreisbogen von mehr als 180 Grad erstreckt. Dieses Biegegelenk befindet sich an einer Stelle der Klemmfeder, die von ihrem Endschenkel am einen Ende und ihrem Endabschnitt am anderen Ende entfernt liegt, indem es an den inneren, unfreien Abschnitt des Auflagerschenkels sowie an den inneren Bereich des mehrfach geschwungenen Federschenkels der Klemmfeder anschließt. Die Endschenkel der Klemmfeder, die sich hier an den freien Enden des Auflagerschenkels und des Federschenkels befinden, sind in Richtung aufeinander zu gebogen und sind einander benachbart angeordnet.A similar clamp spring of a spring clamp is from the Document DE 196 14 977 A1 known, see the preamble of claim 1. Between the on the Current bar support legs and one yourself overlying spring leg is in this Clamping spring arranged the flexure, which over extends an arc of more than 180 degrees. This Bending joint is located at one point of the clamping spring, that of its end leg at one end and its end portion on the other end by attaching to the inner, unfree section of the support leg as well the inner area of the multi-curved spring leg the clamping spring connects. The end legs of the clamp spring, which are here at the free ends of the support leg and the spring leg are towards each other to be bent and are arranged adjacent to each other.

Der Erfindung liegt die Aufgabe zugrunde, eine Federkraftklemme der vorgenannten Art zu schaffen, die einfacher aufgebaut und leichter zu montieren ist.The invention has for its object a spring clip of the aforementioned type to create the simpler and is 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 sich über mehr als einen Halbkreisbogen erstrekkenden Kreisbogenabschnittes zu einem einseitig offenen Ring gebogen ist und der Endschenkel sowie der Endabschnitt der Klemmfeder in Richtung voneinander weg sowie von der Offenseite des etwa kreisbogenförmigen Biegegelenks weggebogen sind und die Zunge sowie das Widerlager des Strombalkens in daran angepaßter Lage angeordnet sind, wobei der mit dem Fenster versehene Endschenkel der Klemmfeder etwa in Richtung einer Tangente an den über die Offenseite des Biegegelenks hinweg verlängerten Kreisbogen angeordnet ist.This task is the generic type in a spring-cage terminal Art solved according to the invention in that the Clamping spring in the area of its flexible joint essentially in Form of an extending over more than a semicircular arc Arc section to an open on one side Ring is bent and the end leg and the end section the clamping spring in the direction away from each other and from the Bent away from the approximately circular-shaped bending joint and the tongue as well as the abutment of the current bar are arranged in an adapted position, the end window of the clamping spring provided with the window, for example towards a tangent to the over the open side of the Bending joint extending arc is arranged.

Für die Erfindung ist die besondere Gestaltung der Klemmfeder wesentlich, die in ihrem zentralen Bereich 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 am anderen Klemmfederende, 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 selbsttätig 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. Für die Erzielung einer maximalen Klemmkraft ist der mit dem Fenster versehene Endschenkel der Klemmfeder etwa in Richtung einer Tangente an den über die Offenseite des Biegeschenkels hinweg theoretisch verlängerten Kreisbogen angeordnet.For the invention is the special design of the clamping spring essential, which in its central area roughly as Open ring is formed on one side, whereby the ends of the clamping spring bent away from one another, that is to say that End legs with windows and the end section at the other Clamping spring end, by hand while reducing the open side of the flexible joint can be compressed so that you have the clamping spring between the tongue and the abutment of the current bar can hang. After letting go the clamping spring expands under its spring force and secures itself automatically under tension between the current bar tongue and the abutment. There is also a special one simple, inexpensive shape of the clamping spring, because it is intertwined or curled up Spring sections are not there. For achieving one maximum clamping force is the end leg provided with the window the clamping spring approximately in the direction of a tangent theoretically across the open side of the bending leg elongated arc.

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 Ende 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 eine 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 end during assembly. Incidentally, it goes without saying that, strictly speaking, the Clamping spring, which is formed from a flat metal band, not cylindrical, but cylindrical, and it here is just a floor plan with its range upright clamping spring meant that also with a Cylinder is circular.

Zur räumlichen Anpassung innerhalb des Gehäuses der betreffenden Federkraftklemme kann es vorteilhaft sein, zwischen dem Biegegelenk und dem nach außen abgebogenen Endabschnitt am zweiten Ende der Klemmfeder einen im wesentlichen gerade verlaufenden Abschnitt 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 als auch das Widerlager abgewinkelt ist.For spatial adjustment within the housing of the concerned Spring clamp it can be advantageous between the flexible joint and the end section bent outwards a substantially straight at the second end of the clamping spring to arrange the running section, without here the basic idea the invention is left. With a view to space-saving arrangement, it is appropriate to the current bar laterally next to the clamping spring parallel to that of their Arrange bending joint spanned circular plane, from Current bar both a bend and 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 flexible joint 6 has the basic shape of a Three-quarters of a closed ring, corresponding to one Has opening side 7, depending on whether the clamping spring 5th is excited or not, a lesser or a greater Width. The bending of the flexible joint 6 runs essentially along a section of a circular arc, with 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, which is essentially in the direction of a tangent runs, which refers to the circular shape of the flexure 6 is if you look at the circle over the open side 7 of the Clamping spring 5 completes thinks. Compared to the Bend 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. A window is located 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 Clamping side 13 an electrical conductor is clamped. In order to such a conductor is inserted into the clamping position described 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. It 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 Pushing in or pushing down the end leg 8 of the clamping spring 5 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 from the 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 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 flexure is bent outwards. 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 section 14 of the clamping spring 5 provides. ever 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 area 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 protrudes integrally formed 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 member 18 enclosed Interior of the current bar 4 hooked under pretension 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 on 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 locking 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 (6)

  1. Electric spring force terminal with a clamping spring (5) bent out of a flat metal strip and with a current bar (4) to which the clamping spring (5) can be attached with pretension for which the clamping spring (5) has at its first end an end arm (8) with an oblong window (9) for displacing this end arm (8) and through which a tongue (10) of the current bar (4) passes, whereby the one end edge (12) of the window is supported through spring force on the current bar tongue (10) where necessary through clamping an electric lead, and for which the current bar (4) has an abutment (15) for supporting an end section (14) at the second end of the clamping spring (5) whereby the clamping spring (5) forms in the region between the end arm (8) and the end section (14) an bending joint at which the clamping spring (5) is bent in the region of its bending joint (6) substantially in the form of a circular arc section extending over more than a half circular arc into a ring which is open at one end,
    characterized in that
    the end arm (18) as well as the end section (14) of the clamping spring (5) are bent away from each other as well as away from the open side (7) of the roughly circular arc shaped bending joint (6), and the tongue (10) as well as the abutment (15) of the current bar (4) are arranged in a position adapted thereto whereby the end arm (8) of the clamping spring (5) provided with the window (9) is arranged roughly in the direction of a tangent to the circular arc which is extended beyond the open side (7) of the bending joint (6).
  2. Spring force terminal according to claim 1,
    characterized in that
    the bending joint (6) of the terminal spring (5) extends roughly along a three quarter circle.
  3. Spring force terminal according to claim 1 or 2,
    characterized in that
    between the bending joint (6) and the outwardly bent end section (14) there is substantially straight section (17) of the clamping spring (5).
  4. Spring force terminal according to one of the claims 1 to 3,
    characterized in that
    the current bar (4) is mounted at the side next to the clamping spring (5) parallel to the circular plane spanned by its bending joint (6) and from the current bar (4) there is an angled down section (11) with the current bar tongue (10) protruding thereon, as well as the angled-down abutment (15).
  5. Spring force terminal according to claim 4,
    characterized in that
    on the current bar (4) itself or on its angled down section (11) there is a support part (18) which protrudes beyond the width of the clamping spring (5) and has a guide contour (19) for engagement of the clamping spring (5).
  6. Spring force terminal according to claim 4 or 5,
    characterized in that
    the abutment (15) has the configuration of a tab angled down from the current bar (4) and having on the contact bearing side of the end section (14) of the clamping spring (5) a receiving contour (16) which is adapted to same.
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
ES97114045T ES2216086T3 (en) 1997-08-14 1997-08-14 ELASTIC FORCE ELECTRICAL TERMINAL.
AT97114045T ATE262737T1 (en) 1997-08-14 1997-08-14 ELECTRICAL SPRING CLAMP
US09/129,171 US5993270A (en) 1997-08-14 1998-08-05 Electric elastic clamp
CN98118424A CN1093989C (en) 1997-08-14 1998-08-13 Spring connecting terminal
JP22887298A JP3307881B2 (en) 1997-08-14 1998-08-13 Spring type electric 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 EP0898325A1 (en) 1999-02-24
EP0898325B1 true 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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DE102005056325A1 (en) * 2005-11-25 2007-06-06 Phoenix Contact Gmbh & Co. Kg Print clamp for circuit board connection terminals having a spring loop with two ends having openings through which a conductor passes
DE202009001488U1 (en) * 2009-02-06 2010-06-24 Weidmüller Interface GmbH & Co. KG Terminal for connecting conductor ends

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JP2000048874A (en) * 1998-07-30 2000-02-18 Osada:Kk Terminal box
DE29915515U1 (en) * 1999-09-03 2001-02-01 Weidmueller Interface Spring clip for connecting electrical conductors
DE29920231U1 (en) 1999-11-17 2001-04-05 Weidmueller Interface Screwless terminal
CN1205697C (en) * 2000-08-04 2005-06-08 欧姆龙株式会社 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
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
DE202007001701U1 (en) * 2007-02-06 2008-06-19 Tridonicatco Connection Technology Gmbh & Co Kg Universal Contact
US7607953B2 (en) * 2007-11-30 2009-10-27 Tyco Electronics Corporation Spring-loaded contact for electrical conductors
CN101562282B (en) * 2009-05-19 2011-01-19 宁波高正电子有限公司 Electric connector
DE102010024809B4 (en) * 2010-06-23 2013-07-18 Wago Verwaltungsgesellschaft Mbh terminal
DE102011012021A1 (en) * 2011-02-22 2012-08-23 Phoenix Contact Gmbh & Co. Kg Metal part for an electronic connection device
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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US3207955A (en) * 1962-03-06 1965-09-21 Gen Electric Compartmented switch box with a terminal board and bus bars mounted on opposite sides of the partition
CH667553A5 (en) * 1985-10-09 1988-10-14 Woertz Oskar SCREWLESS ELECTRICAL TERMINAL.
GB9001980D0 (en) * 1990-01-29 1990-03-28 Electrocomponents Plc Improvements relating to electrical connectors
DE4118473C2 (en) * 1990-09-06 1997-06-19 Bauscher Metalluk Plug contact terminal for a circuit board
DE4336965A1 (en) * 1993-10-29 1995-05-04 Eichsfelder Technik Eitech Gmb Detachable contact terminal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056325A1 (en) * 2005-11-25 2007-06-06 Phoenix Contact Gmbh & Co. Kg Print clamp for circuit board connection terminals having a spring loop with two ends having openings through which a conductor passes
DE102005056325B4 (en) * 2005-11-25 2007-08-30 Phoenix Contact Gmbh & Co. Kg PCB terminal for PCB connection
DE202009001488U1 (en) * 2009-02-06 2010-06-24 Weidmüller Interface GmbH & Co. KG Terminal for connecting conductor ends

Also Published As

Publication number Publication date
DE59711449D1 (en) 2004-04-29
JP3307881B2 (en) 2002-07-24
ATE262737T1 (en) 2004-04-15
CN1093989C (en) 2002-11-06
US5993270A (en) 1999-11-30
EP0898325A1 (en) 1999-02-24
JPH11154541A (en) 1999-06-08
CN1208972A (en) 1999-02-24
ES2216086T3 (en) 2004-10-16

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