EP1008205A1 - Borne serre-fils pour le raccordement sans denudage de conducteurs isoles - Google Patents

Borne serre-fils pour le raccordement sans denudage de conducteurs isoles

Info

Publication number
EP1008205A1
EP1008205A1 EP98944976A EP98944976A EP1008205A1 EP 1008205 A1 EP1008205 A1 EP 1008205A1 EP 98944976 A EP98944976 A EP 98944976A EP 98944976 A EP98944976 A EP 98944976A EP 1008205 A1 EP1008205 A1 EP 1008205A1
Authority
EP
European Patent Office
Prior art keywords
terminal block
pliers
leg
block according
cutting edge
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
EP98944976A
Other languages
German (de)
English (en)
Other versions
EP1008205B1 (fr
Inventor
Eberhard Schlegel
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.)
Georg Schlegel GmbH and Co KG
Original Assignee
Georg Schlegel GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Georg Schlegel GmbH and Co KG filed Critical Georg Schlegel GmbH and Co KG
Publication of EP1008205A1 publication Critical patent/EP1008205A1/fr
Application granted granted Critical
Publication of EP1008205B1 publication Critical patent/EP1008205B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—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
    • 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H01R4/4828—Spring-activating arrangements mounted on or integrally formed with the spring housing
    • H01R4/48365—Spring-activating arrangements mounted on or integrally formed with the spring housing with integral release means

Definitions

  • the invention relates to a terminal block with an Isoliersto fgephaseuse and a connecting device for an insulated conductor which is resiliently clamped between a cutting edge and a counter-support without stripping.
  • This connection technology simplifies and accelerates the work, which is particularly noticeable in switchgear and machines with a large amount of wiring and meter-long terminal strips.
  • Stripping-free terminals are known, for example according to FR-A-2 503 464, which have a cutting bushing or the like as an essential connecting element. Two opposing cutting edges, which form a slot between them, are typical. The conductor is forced into the direction of the cutters in this slot, which may become wider towards the insertion end. The conductor executes a movement perpendicular to its longitudinal extent. The insulation is penetrated by the cutting edges in a pulling cut until the copper core with the cutting edges comes into contact. If necessary, the cutting edges sometimes also penetrate the copper material.
  • the width in the direction of connection is an economically important criterion.
  • the lower limit of this width is the sum of the outer diameter of the insulated conductor and the thickness of the wall of the insulating material housing, which separates two terminal blocks.
  • the thickness of the cutting bush of the known stripping-free terminal necessarily exceeds the diameter of the insulated conductor considerably. You have to start from a slot width that is locally almost equal to the conductor diameter. In addition, there is the width of the two cutting edges and possibly their folded parts, so that overall there is a relatively wide terminal block.
  • the invention has for its object to avoid this fundamental disadvantage and to propose a terminal block of the type described in the introduction, the handling and structural design of which is simple and which at the same time has a small width in the row direction.
  • a counter-support that is also a cutting edge is preferred, wherein both cutting edges can be moved relative to one another in the manner of pliers without lateral offset.
  • a preferred embodiment of the invention makes use of a clamping spring, as is described, for example, in German Patent 35 14 099 and has become widespread under the name cage tension spring. It is proposed that one leg of such a cage tension spring rests on a busbar which extends through a window of the other leg, and that the busbar has a cutting edge facing the other leg end. The conductor is inserted into the window between this cutting edge and the closest clamping edge of the window. The clamping edge forms the counter support. It presses so hard on the conductor that the cutting edge cuts through the insulating jacket of the conductor down to the copper.
  • the clamping edge can be made particularly flat by means of a bevel.
  • the clamping edge of the window can also be designed as a cutting edge, so that the conductor is then gripped by two cutting edges. If only one of these two reaches the copper core of the conductor, the other forms at least an effective train protection.
  • the connecting device comprises a cross-sectionally C-shaped, one-piece bite sleeve made of a resilient material, the mutually facing bevels of which are designed as cutting edges. Since these cutting edges are usually shaped and arranged in mirror symmetry and consist of the same material, it is achieved that both cutting edges in the Penetrate the insulating jacket of the conductor and make contact with the conductor core.
  • the forceps legs of the bite sleeve spring apart, i. H. in the relaxed state they form a slot which is so large that the insulated conductor can be inserted.
  • the pliers legs are pressed against each other by means of a screw or an eccentric, so that the pliers legs then exert a spring force in the clamping direction on the cutting edges.
  • the forceps legs of the bite sleeve spring together i. H. apply the force to cut through the insulating material.
  • means must be provided to open the pliers legs so that the conductor can be inserted.
  • Another possibility is to provide a pocket-like formation on one of the pliers legs, into which a bending tool can be inserted, e.g. B. a screwdriver that forms an extension of the pliers leg.
  • the connecting device has a cross-sectionally essentially C-shaped pliers arrangement, the pliers legs of which are joined together in a limited articulated manner and have mutually facing bends which are designed as cutting edges, a pliers leg being part of a busbar or a metal housing and so that it is fixed in the insulating material housing and the other pliers leg is movable.
  • Such an inherently non-resilient pliers arrangement can become one by external suspension by means of a cage tension spring complete stripping-free connection terminal can be upgraded.
  • the support leg of the cage tension spring rests on the outside of one of the pliers legs. Your window leg extends over the cutting edges and the end section of the window leg is in positive engagement with the other tong leg.
  • the window leg of the spring have a recess into which a projection of the pliers leg engages.
  • a tongue can be bent out of the spring material of the window leg, which tongue engages in a recess of the tong leg.
  • At least one of the two pliers legs can also consist of a spring material.
  • the width of the cutting edges does not have to be greater than the outside diameter of the thickest conductor provided. So that's a Realizable maximum value specified for the width of the other structural parts of the terminal.
  • the insulating jacket does not need to be cut across its entire diameter as with a knife, but it is sufficient if the length of the cutting edges is less than the diameter of the insulating jacket of the conductor to be connected. Such a short cutting edge has less resistance when the insulating jacket is pierced radially. You only have to hit the ladder soul safely.
  • the length of the cutting edge corresponds approximately to the diameter of the conductor core. Since the pliers leg is wider in the rest, the individual cutting edge presents itself as a protruding tooth on the pliers leg, the length of which perpendicular to the cutting edge must be at least equal to the radial thickness of the insulating jacket. The tooth should be able to penetrate unhindered.
  • FIG. 12 is a side view, partly in section, of a clamping device similar to that of FIG. 9 in a schematic representation with locking projections,
  • FIG. 13 shows the front view of the device according to FIGS. 12 and
  • Fig. 14 is a partial cross section XIV-XIV acc. Fig. 12.
  • the busbar 1 comprises a busbar 1 and a cage tension spring 2.
  • the latter has a support leg 3 nestled against the busbar and a window leg 4 which takes its name from a window recess 5.
  • the busbar and the support leg penetrate the window.
  • the busbar 1 has a downward-facing, transverse, sharp, prism-shaped cutting edge 6. Between this and a clamping edge 7 of the window recess, an insulated conductor 8 is inserted into the window recess and thus connected to the busbar 1.
  • the conductor is pressed so strongly against the conductor rail by the clamping edge 7 that the cutting edge 6 penetrates the insulating jacket 9 of the conductor and comes into contact with the copper core 10 of the conductor, possibly partially penetrating into the copper material. Since the spring force acts continuously, the electrical contact is not impaired even if the insulating jacket undergoes a flow deformation at the contact point of the clamping edge 7 and yields.
  • the clamping arrangement described is, as is customary in the case of small row types, inserted into a flat insulating housing, which the busbar 1 and the cage tension spring 2 are mutually fixed, but the latter can be actuated.
  • the clamping edge can also be gem.
  • Fig. 2 angled or acc. Fig. 3 can be bent question mark.
  • the clamping device according to FIG. 1 can be transformed into another category.
  • the clamping edge is sharpened and thus designed as a cutting edge.
  • this cutting edge can also penetrate as far as the copper core 10 or can only grasp in the insulating jacket 9 and thus act as a train protection for the connected conductor 8.
  • All other clamping devices shown by way of example have two cutting edges of the same type, which can be moved towards one another and, as intended, both are intended to cut through the insulating jacket 9.
  • FIG. 5 shows a one-piece bite sleeve 12 of C-shaped cross section formed on a busbar 11, the edges of which are formed as cutting edges 13 by sharpening.
  • the bite sleeve is made of a spring material and shaped in such a way that, when left to its own devices, it springs open, so that the slot between the cutting edges allows unimpeded insertion of the insulated conductor, which is also denoted by 8.
  • the bite sleeve 12 is surrounded by a cross sleeve 14 into which a screw is screwed. In this way, the two pliers legs 15 of the bite sleeve are pressed together against the elastic pretension, so that the cutting edges 13 penetrate through the insulating jacket 9 and contact the copper core 10.
  • a bite sleeve 16 with the same shape is provided in the clamping device according to FIG. 6, a bite sleeve 16 with the same shape is provided. However, their pretension is selected so that the cutting edges lie on top of one another in the relaxed state and therefore the pliers legs must be pressed apart to connect the conductor. This is done with the aid of an eccentric nut 17 arranged in the bite sleeve, which has an actuating lever 18. The connection position is shown with solid lines. By pivoting the actuating lever 18 to the right, the bite sleeve is opened so that the conductor can be inserted in this position.
  • Fig. 7 shows the same bite sleeve 16 as in Fig. 6.
  • a busbar 19 is attached to one of the pliers legs.
  • the other pliers leg has on its outside a pocket-like projection 20, into which, as shown, a screwdriver 21 with its blade can be inserted. It serves as an extended actuation lever with which the bite sleeve can be opened by pressing down in the direction of the arrow.
  • the other examples each have a two-part, also C-shaped pliers arrangement instead of a one-piece bite sleeve.
  • the pliers legs are fitted into one another with limited articulation.
  • Fig. 9 shows that a pliers leg 22 is inserted into a recess in the other leg and is simply folded at a right angle.
  • Figures 12 and 14 show another solution.
  • a pliers leg 23 is formed at its end as a fork pin 24 and snapped into a recess in the other pliers leg.
  • the arrangement is such that at least one pliers leg consists of a spring material which exerts the required spring force when, according to. Fig. 8 with a cross sleeve Screw or acc. Fig. 9 an eccentric pinches the pliers assembly.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Abstract

L'invention concerne une borne serre-fils comportant un boîtier isolant et un dispositif de connexion pour un conducteur isolé (8), lequel est connecté par élasticité de rappel, sans dénudage, entre un tranchant (6) et un support antagoniste. Dans le but de maintenir une faible largeur dans le sens de jonction, le tranchant (6) s'étend dans cette direction, le conducteur étant introduit, dans sa position de connexion, dans le sens de sa longueur et perpendiculairement au tranchant (6). Le support antagoniste (7) peut également être un tranchant, les deux tranchants étant mobiles l'un par rapport à l'autre sans déport latéral, à la manière de tenailles. Le dispositif de raccordement peut présenter un ressort de traction en cage (2) ou encore une cosse, du type tenailles, monobloc et de section en forme de C, constituée d'un matériau élastique, dont les chanfreins se faisant face sont configurés comme des tranchants. Une autre variante consiste en ce que le dispositif de raccordement possède un système de tenailles de section sensiblement en forme de C, dont les branches s'emboîtent de manière articulée et limitée et présentent des ressorts indépendants. La longueur du ou des tranchants peut être inférieure au diamètre de la gaine isolante (9) du conducteur à raccorder, en vue d'obtenir un moindre pouvoir tranchant.
EP98944976A 1997-08-30 1998-07-09 Borne serre-fils pour le raccordement sans denudage de conducteurs isoles Expired - Lifetime EP1008205B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19737947 1997-08-30
DE19737947A DE19737947A1 (de) 1997-08-30 1997-08-30 Reihenklemme zum abisolierungsfreien Anschluß isolierter Leiter
PCT/DE1998/001916 WO1999012233A1 (fr) 1997-08-30 1998-07-09 Borne serre-fils pour le raccordement sans denudage de conducteurs isoles

Publications (2)

Publication Number Publication Date
EP1008205A1 true EP1008205A1 (fr) 2000-06-14
EP1008205B1 EP1008205B1 (fr) 2002-06-05

Family

ID=7840708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98944976A Expired - Lifetime EP1008205B1 (fr) 1997-08-30 1998-07-09 Borne serre-fils pour le raccordement sans denudage de conducteurs isoles

Country Status (3)

Country Link
EP (1) EP1008205B1 (fr)
DE (2) DE19737947A1 (fr)
WO (1) WO1999012233A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007090A1 (de) * 2000-02-16 2001-08-23 Schlegel Georg Gmbh & Co Anschlussklemme für einen isolierten Leiter
DE20009541U1 (de) * 2000-05-27 2001-10-11 Weidmueller Interface Anschlußvorrichtung für elektrische Leiter und Reihenklemme
DE20208724U1 (de) * 2002-06-04 2003-10-16 Weidmueller Interface Federklemme
DE20305156U1 (de) * 2003-03-28 2004-08-19 Weidmüller Interface Gmbh & Co. Anschlußvorrichtung mit selbstauslösendem Piercingkontakt
DE20305155U1 (de) * 2003-03-28 2004-08-19 Weidmüller Interface Gmbh & Co. Elektrisches Gerät, insbesondere Reihenklemme mit Pircingkontakten
US7776584B2 (en) 2003-08-01 2010-08-17 Genetix Limited Animal cell colony picking apparatus and method
DE102011054418B4 (de) * 2011-10-12 2015-01-22 Phoenix Contact Gmbh & Co. Kg Federkörper einer Federkraftklemme und Federkraftklemmanordnung
DE102015106271A1 (de) * 2015-04-23 2016-10-27 Wago Verwaltungsgesellschaft Mbh Klemmverbinder
DE102015106269A1 (de) * 2015-04-23 2016-10-27 Wago Verwaltungsgesellschaft Mbh Klemmverbinder
DE102017106784B3 (de) 2017-03-29 2018-10-04 Phoenix Contact Gmbh & Co. Kg Leiteranschlusseinrichtung
DE102022132363A1 (de) 2022-12-06 2024-06-06 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Schneidklemme und Betätiger für eine Schneidklemme
DE102022132366A1 (de) 2022-12-06 2024-06-06 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Leiteranschlussklemme

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1250124A (fr) * 1970-05-05 1971-10-20
DE7036216U (de) * 1970-07-01 1971-01-21 Niko Pvba Anschlussvorrichtung fuer elektrische leiter.
DE3122303A1 (de) * 1981-06-04 1983-01-27 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Federklemme zum anschluss isolierter elektrischer leiter
DE19541137A1 (de) * 1995-10-30 1997-05-07 Wago Verwaltungs Gmbh Elektr. Frontverdrahtungsklemme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9912233A1 *

Also Published As

Publication number Publication date
EP1008205B1 (fr) 2002-06-05
DE59804341D1 (de) 2002-07-11
WO1999012233A1 (fr) 1999-03-11
DE19737947A1 (de) 1999-03-04

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