EP1014495B1 - Verbindungsfeder - Google Patents

Verbindungsfeder Download PDF

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Publication number
EP1014495B1
EP1014495B1 EP99420245A EP99420245A EP1014495B1 EP 1014495 B1 EP1014495 B1 EP 1014495B1 EP 99420245 A EP99420245 A EP 99420245A EP 99420245 A EP99420245 A EP 99420245A EP 1014495 B1 EP1014495 B1 EP 1014495B1
Authority
EP
European Patent Office
Prior art keywords
branch
supporting arm
spring
zone
pinch
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
EP99420245A
Other languages
English (en)
French (fr)
Other versions
EP1014495A1 (de
Inventor
Bernard Bechaz
Stéphane Prost
Philippe France
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.)
ABB France SAS
Original Assignee
ABB Entrelec 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
Application filed by ABB Entrelec SAS filed Critical ABB Entrelec SAS
Publication of EP1014495A1 publication Critical patent/EP1014495A1/de
Application granted granted Critical
Publication of EP1014495B1 publication Critical patent/EP1014495B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48455—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 present invention relates to a connection spring making it possible to make an electrical connection of a stripped wire in a terminal block for electrical conductor.
  • the pinch branch is moved to allow insertion of the wire to be connected.
  • a screwdriver usually comes to control this movement by acting at the level of the elastic bow.
  • problems can occur when you connect the bare end of a driver. If the spring is not fully maneuvered, it may happen that introducing the end of the conductor, it comes to push the branch pinch the spring and fold it. Releasing the spring, this one just stick the poorly connected conductor against a wall of the housing and the operator believes that he has made a good connection. However, the contact electric is bad and the connection terminal can burn. This problem happens especially with massive drivers.
  • connection terminal comprising the connection spring is usually placed in an insulating housing. It is sometimes provided in this housing to make a support for receiving the free end of the branch of pinching when the spring is bandaged. However, when the spring is, for one reason or another, deformed, it may be that the free end of the pinch branch, instead of coming to rest on the support made level of housing, come under this support. This results in a deformation even more important of the connection spring and / or a wedging of this spring in the housing.
  • DE-C-19646103 shows a spring according to the preamble of claim 1.
  • the present invention aims to provide a new connection device providing better guidance and support of the pinch branch when the spring is stressed and released.
  • this device will be of a lower cost price than known spring devices, and can be adapted to the case where the bar link is placed above the compression spring, as shown in EP-0 735 629.
  • the present invention proposes a spring of connection for making an electrical connection of a bare wire in an electrical conductor connection terminal made in a flat elastic material, which has a support arm intended for come to bear against a fixed conductive part of the terminal of connection as well as a rear branch, facing the branch support, connected by an elastic connection zone to the latter and the free end is bent towards the support branch to form a mobile pinch branch, presenting on the side of its free end, a substantially flat portion provided with an opening for the passage of the conductive fixed part and the stripped wire so that the edge of the opening located on the side of the free end of the pinch branch movable comes to maintain the stripped end of the wire in support against the part fixed conductor, a connecting zone connecting the two branches elastically.
  • the support branch is provided with a zone of guide extending substantially parallel to the pinch leg, on the opposite side to the back branch.
  • the guiding is carried out at the connection spring.
  • This position minimizes the amount of material needed for realization of the guiding function.
  • the surplus of material used to realize the guide area on the connecting spring can easily be less than the amount of material generally used for guidance on the conductive fixed part.
  • the guidance zone can also easily extend over the entire width of the spring. This ensures support reliable pinch branch.
  • connection spring In one embodiment of the connection spring, the area of guidance extends substantially perpendicular to the support branch.
  • the guide zone is advantageously attached to the branch support distance from the free edge of the bearing branch bearing against the fixed conductive part.
  • the guide zone advantageously comprises a window in which pass the conductive fixed part and the stripped wire to Connect.
  • the guide zone is obtained by cutting at the level of the branch of support then by folding.
  • the cut made in the support branch is advantageously U-shaped, the base of the U being located on the side of the free end of the support branch.
  • connection terminal for an electrical conductor which comprises a connection spring such as described above.
  • a connection terminal can take place in any type of electrical device requiring the connection of a wire. It can for example be a switch, a circuit breaker, etc .... such a connection terminal is particularly suitable for a block of junction. It is then arranged in an insulating housing. Preferably, this insulating housing has a support on which comes to support a free end of the guide region of the connection spring.
  • FIGS 1 to 3 show a connection spring 2 according to the invention.
  • This spring 2 is in the form of a loop presenting a fixed support branch 4 and a rear branch 5 which faces the branch 4.
  • a connecting zone 8 connects the two branches 4 and 5 forming a loop.
  • the free end of the rear branch 5 is folded towards the support branch 4.
  • the folded part forms a pinch branch mobile 6, which extends substantially perpendicular to the branch 4.
  • the spring is made of a strip of flat material, for for example, a strip of steel sheet.
  • the pinch branch 6 has an opening of pinch 10 of substantially rectangular shape.
  • This opening 10 has a pinch edge 12 on the free end side of the pinch branch, and a stop edge 14 on the side of the 8. As can be seen in FIGS. 4 and 5, this opening 10 is intended to receive the free end of the support branch 4, a connecting bar 16, as well as the stripped end of a wire 18.
  • connection spring according to the invention also has a guide zone 20.
  • the latter extends from the branch 4 substantially parallel to the pinch branch 6 and just below this branch 6.
  • the area 20 extends outwardly of the spring 2, that is to say, on the side opposite to the connecting zone 8 and to the rear branch 5. This zone of guide 20 is oriented towards the outside of the loop.
  • the guiding zone is substantially U-shaped. free ends of the branches of the U are attached to the support branch 4 thus defining an opening 22. The latter is intended to receive the bar 16 and the end of a stripped wire 18 (Figure 5).
  • the guide zone 20 is obtained by making a cut in the flat material from which the spring 2 is made, then by a folding.
  • the cutout is U-shaped and is made at the level of the support leg 4, the base of the U being oriented towards the free end of the strip of flat material, and the branches of the U being substantially parallel at the edges of this strip of material.
  • the end of the material strip is then folded towards the outside of the loop so as to form the zone of guidance as can be seen in the drawing.
  • the ends of the branches of the guide zone 20 are bent.
  • Figures 4 and 5 show the spring described above in position in a connection terminal.
  • the latter has a insulating housing made of synthetic material obtained by molding. Housing is provided in this housing to receive, in known manner, the spring of connection 2. Protrusions 24 are provided to guarantee a good positioning and a good hold of the connection spring in its housing.
  • a support 26 is also provided in the insulating housing and is placed so that the free end of the guide zone 20 comes take support on this support 26.
  • the link 16 is here very simple. Indeed, at the level of support branch 4, it is in the form of a flat blade. The support branch 4 comes to bear on one side of this blade that passes through openings 10 and 22. In the relaxed position shown in Figure 4, the pinch edge abuts against the bar 16.
  • the spring 2 is put under constraint.
  • the end of a screwdriver is used 28 that just pushes the pinch branch 6 so that the opening 10 of the pinch branch 6 comes next to the opening 22 of the guiding zone 20.
  • the connection zone 8 then has tendency to return the connection spring 2 to its position shown on Figure 4.
  • the two openings being opposite each other, the end of a bare wire 18 is introduced.
  • the pinch branch 6 comes, as known, pinch the end of the wire bare against the bar 16.
  • the fact of providing the guide zone on the spring itself makes it possible to save material, and thus to achieve a connection terminal with connection spring at a lower cost. In indeed, very little material is needed to achieve the guidance zone 20 compared to the amount of material needed to achieve a guiding the pinch branch at the conductive bar.
  • the guide zone 20 is also easy to make. Indeed, a cutting and folding are sufficient for its realization.
  • the guide zone 20 ensuring perfect guidance of the branch pinch, it virtually eliminates any risk of jamming the pinch branch when maneuvering it.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Multi-Conductor Connections (AREA)

Claims (8)

  1. Verbindungsfeder (2), die das Herstellen einer elektrischen Verbindung eines abgemantelten Kabels (18) mit einer Anschlussklemme für einen elektrischen Leiter erlaubt, wobei sie aus einem flachen, elastischen Material gefertigt ist und einen Anlageabschnitt (4) aufweist, der vorgesehen Ist, an einen starren, leitenden Teil (16) der Anschlussklemme anzuliegen, sowie einen hinteren Abschnitt (5), der dem Anlageabschnitt (4) gegenüber liegt und durch einen elastischen Verbindungsbereich (8) mit diesem verbunden ist und dessen freies Ende in Richtung auf den Anlageabschnitt (4) zurückgebogen ist, um einen beweglichen Klemmabschnitt (6) zu bilden, der auf der Seite seines frelen Endes einen im Wesentlichen ebenen Bereich aufweist, der eine Öffnung (10) umfasst, die zur Durchführung des starren, leitenden Teils (16) und des abgemantelten Kabels (18) vorgesehen ist, in der Weise, dass der Rand (12) der Öffnung. der sich auf der Seite des fielen Endes des beweglichen Klemmabschnitts (6) befindet, das abgemantelte Ende des Kabels (18) hält, das an den starren, leitenden Teil (16) anliegt, wobei der Anlageabschnitt (4) mit einem Führungsbereich (20) versehen ist,
       dadurch gekennzeichnet, dass sich der Führungsbereich auf der zum hinteren Abschnitt (5) entgegengesetzten Seite im Wesentlichen parallel zum Kiemmabschnitt (6) erstreckt.
  2. Verbindungsfeder (2) nach Anspruch 1, dadurch gekennzeichnet, dass sich der Führungsbereich (20) im Wesentlichen quer zum Anlageabschnitt (4) erstreckt.
  3. Verbindungsfeder (2) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Führungsbereich (20) mit Abstand zum freien Rand des Anlageabschnitts (4) an diesen anschließt, der an den starren, leitenden Teil (16) anliegt
  4. Verbindungsfeder (2) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Führungsbereich (20) ein Fenster (22) umfasst, in das der starre, leitende Teil (16) und das anzuschließende abgemantelte Kabel (18) geführt werden.
  5. Verbindungsfeder (2) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Führungsbereich (20) durch Ausschneiden in Höhe des Anlageabschnitts (4) und anschließendes Biegen erhalten wird.
  6. Verbindungsfeder (2) nach Anspruch 5, dadurch gekennzeichnet, dass der in dem Anlageabschnitt (4) vorgenommene Ausschnitt die Form eines U hat, wobei sich der Querbalken des U auf der Seite des freien Endes des Anlageabschnitts befindet.
  7. Anschlussklemme für elektrische Leiter, dadurch gekennzeichnet, dass sie eine Verbindungsfeder (2) nach einem der Ansprüche 1 bis 6 umfasst.
  8. Verbindungseinheit mit einem isolierenden Gehäuse und mindestens einer Anschlussklemme nach Anspruch 7, dadurch gekennzeichnet, dass das isolierende Gehäuse eine Stütze (26) aufweist, auf der ein freies Ende des Führungsberelchs (20) aufliegt.
EP99420245A 1998-12-23 1999-12-15 Verbindungsfeder Expired - Lifetime EP1014495B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816585A FR2787932B1 (fr) 1998-12-23 1998-12-23 Ressort de connexion
FR9816585 1998-12-23

Publications (2)

Publication Number Publication Date
EP1014495A1 EP1014495A1 (de) 2000-06-28
EP1014495B1 true EP1014495B1 (de) 2005-02-09

Family

ID=9534630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99420245A Expired - Lifetime EP1014495B1 (de) 1998-12-23 1999-12-15 Verbindungsfeder

Country Status (7)

Country Link
US (1) US6196883B1 (de)
EP (1) EP1014495B1 (de)
BR (1) BR9905928A (de)
CA (1) CA2293179C (de)
DE (1) DE69923651T2 (de)
ES (1) ES2237062T3 (de)
FR (1) FR2787932B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10039963C2 (de) * 2000-08-16 2003-01-02 Siemens Ag Schneidklemmeinrichtung
FR2815177B1 (fr) * 2000-10-10 2005-02-11 Entrelec Sa Ressort de connexion et bloc de raccordement mettant en oeuvre un tel ressort
DE10153170C1 (de) * 2001-10-27 2003-02-20 Phoenix Contact Gmbh & Co Federkraftklemme
DE10238661B3 (de) * 2002-08-23 2004-02-26 Lumberg Connect Gmbh & Co. Kg Elektrische Kontaktiervorrichtung, insbesondere zur Verbindung einer Spannungsquelle mit einer elektronischen Schaltung
DE102005056325B4 (de) * 2005-11-25 2007-08-30 Phoenix Contact Gmbh & Co. Kg Printklemme für Leiterplattenanschluß
TWM335050U (en) * 2007-10-08 2008-06-21 Hon Hai Prec Ind Co Ltd Electrical connector
EP2384788B1 (de) 2010-05-04 2012-09-26 Sorin CRM SAS Schraubenloses Schnellverbindungssystem eines Sondenanschlusses an einen Generator eines implantierbaren Medizingeräts
JP2013235681A (ja) * 2012-05-07 2013-11-21 Yazaki Corp 電線挟持構造
US9943685B2 (en) 2015-04-23 2018-04-17 Cyberonics, Inc. Lead engagement devices and methods for electrical stimulation and/or monitoring systems
EP3206260A1 (de) * 2016-02-15 2017-08-16 ABB Schweiz AG Elektrisches gerät, das über eine druckverbindungsklemme mit einer halteklammer verfügt, die die elastische verformung der kontaktfeder führt und begrenzt
DE102019125895B4 (de) * 2019-09-26 2021-06-10 Bjb Gmbh & Co. Kg Anschlussklemme mit Einführtrichter

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266194B (de) * 1963-11-21 1968-04-11 Maerklin & Cie Gmbh Geb Kabelklemme fuer elektrisch betriebene Spielzeuge
US3526870A (en) * 1968-06-06 1970-09-01 Minnesota Mining & Mfg Spring tension connector for wire-wrap post
US3961835A (en) * 1975-01-28 1976-06-08 The United States Of America As Representated By The Secretary Of The Navy Elastic retaining clip
CH667553A5 (de) * 1985-10-09 1988-10-14 Woertz Oskar Schraubenlose elektrische klemme.
DE3727091C1 (de) 1987-08-14 1989-02-02 Wieland Elek Sche Ind Gmbh F Schraubenlose Anschluss- und/oder Verbindungsklemme
DE4237733C1 (de) 1992-11-09 1993-12-23 Weidmueller Interface Schraubenlose Anschlußklemme für elektrische Leiter
GB9311559D0 (en) * 1993-06-04 1993-07-21 Amp Gmbh Spring clamp actuator
FR2732518B1 (fr) 1995-03-29 1997-04-30 Entrelec Sa Agencement de connexion pour fils conducteurs electriques et module, notamment de type bloc de jonction, equipe d'un tel agencement
DE29608178U1 (de) * 1996-05-06 1996-07-25 Weidmueller Interface Zugfederanschluß mit einsteckbarem Anschlagelement
DE19641206C2 (de) 1996-09-25 1999-12-23 Wago Verwaltungs Gmbh Anschlußklemme für elektrische Leiter
DE19646103C1 (de) * 1996-11-08 1998-03-12 Phoenix Contact Gmbh & Co Federkraftklemme
FR2761534B1 (fr) * 1997-03-28 1999-05-28 Entrelec Sa Agencement de connexion electrique et module, notamment de raccordement, comportant un tel agencement
DE19753076C1 (de) * 1997-11-29 1999-08-19 Lumberg Karl Gmbh & Co Elektrische Anschlußklemme, insbesondere Anreihklemme

Also Published As

Publication number Publication date
ES2237062T3 (es) 2005-07-16
CA2293179C (fr) 2004-07-20
DE69923651T2 (de) 2005-06-30
BR9905928A (pt) 2000-08-08
DE69923651D1 (de) 2005-03-17
EP1014495A1 (de) 2000-06-28
US6196883B1 (en) 2001-03-06
FR2787932B1 (fr) 2001-03-09
FR2787932A1 (fr) 2000-06-30
CA2293179A1 (fr) 2000-06-23

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