EP2096714B1 - Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird - Google Patents

Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird Download PDF

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Publication number
EP2096714B1
EP2096714B1 EP08425054A EP08425054A EP2096714B1 EP 2096714 B1 EP2096714 B1 EP 2096714B1 EP 08425054 A EP08425054 A EP 08425054A EP 08425054 A EP08425054 A EP 08425054A EP 2096714 B1 EP2096714 B1 EP 2096714B1
Authority
EP
European Patent Office
Prior art keywords
lever
case
contact
spring
contact element
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.)
Not-in-force
Application number
EP08425054A
Other languages
English (en)
French (fr)
Other versions
EP2096714A1 (de
Inventor
Fabrizio Fabrizi
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.)
BTicino SpA
Original Assignee
BTicino SpA
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 BTicino SpA filed Critical BTicino SpA
Priority to ES08425054T priority Critical patent/ES2343096T3/es
Priority to DE602008000975T priority patent/DE602008000975D1/de
Priority to AT08425054T priority patent/ATE463863T1/de
Priority to EP08425054A priority patent/EP2096714B1/de
Priority to PT08425054T priority patent/PT2096714E/pt
Publication of EP2096714A1 publication Critical patent/EP2096714A1/de
Application granted granted Critical
Publication of EP2096714B1 publication Critical patent/EP2096714B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—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
    • H01R4/483—Pivoting arrangements, e.g. lever pushing 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
    • H01R4/28—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
    • H01R4/4846—Busbar details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting

Definitions

  • the present invention relates to an electrical connection device with a contact spring operated by a lever having an inlet opening for the end of an electric cable.
  • Electrical connection devices are known where a spring ensures electrical contact between a conducting element, which acts as an electrical contact grip or pin, and the end of an electric cable.
  • the function of the spring is to press the end of the cable against the conducting element, ensuring a minimum contact resistance.
  • the contact spring which is usually a leaf spring, suitably folded, is actuated by a mechanical means, lever, cam or wedge, so as to open a space which allows the introduction of the end of an electric cable between the spring and the conducting element or, on the other hand, extraction, without force, of an end which has previously been inserted.
  • the contact spring is actuated by a cam which extends in the form of an actuating lever and is hinged with a case made of insulating material and housing the conducting element and the spring.
  • An opening in the case allows the end of the cable to be introduced inside the case and positioned when the lever is operated, between the contact spring and the conducting element.
  • the actuating lever is conveniently shaped so as to engage with one end of a screwdriver which increases the lever arm.
  • the sliding piece acts on the spring in the manner of a wedge which flexes the spring so as to form the space for insertion of the cable end and, in this case it is the pushbutton which has an inlet and guiding opening for the cable end.
  • the head of which is practically occupied entirely by the inlet opening, it is necessary to use a tool, such as a screw driver, in order to exert a suitable thrusting force on it.
  • the wedge system is prone to jamming, the smaller the taper angle of the wedge, and does not offer the same guarantee of reliability as a lever system, where the lever is able to assume its rest position again without substantial friction.
  • a further drawback of these solutions is that the contact spring acts on the end of the cable with its sharp edge and exerts on the latter a localised force which does not ensure an adequate contact surface area between the cable end and the contact element.
  • the present invention aims to overcome these drawbacks and proposes a connection device which is particularly compact, functionally efficient and reliable and suitable for the most varied uses, in particular for forming multi-pole electric connectors.
  • connection device as characterized by the claims.
  • the electrical contact device consists of two half-shells 1, 2 which are made of insulating material and each have two parallel sides 3, 4 and 5,6, respectively, which are equally spaced, and an end wall 7, 8, respectively.
  • the two axially aligned openings have a slight undercut on the outer side of the two half-shells.
  • a contact element 13 made of metallic material which is a good conductor (copper or copper alloy) and a folded-leaf contact spring 14 are housed inside the two half-shells.
  • the contact element 13 is kept in position, inside the two half-shells, by suitable raised ribs which are formed inside the two half-shells and are collectively identified by the reference number 15.
  • a lever 16 made of insulating material and with a pair of axially aligned pins 17,18 which are inserted in the openings 11,12 of the two half-shells, closes the side of the two half-shells opposite to the end walls 7,8 and is partly housed inside the two half-shells.
  • the pins 17,18 have, at their ends, a slight toroidal relief which, when the pins are forced into the openings 11,12, engages in the undercut of said openings and forms a snap-engaging connection between the two half-shells, while allowing rotation of the lever relative to the two half-shells.
  • the snap-engagement connection between the two half-shells is completed by two teeth, one of which 19 is visible, said teeth being respectively arranged in a recess 20,21 formed in the side 6 and in the end wall of the half-shell 2, respectively.
  • the two half-shells 1 and 2 instead of being snap-engaged together, may be heat-bonded together, but a snap-engaging connection is preferred because it simplifies the production process.
  • the engaging teeth and the associated eyelets may be obtained during the process which involves moulding of the half-shells in a mould and counter-mould, without requiring the use of composite moulds.
  • a tooth 26 extending longitudinally over a certain length of the side is formed as a relief on the sides 3 and 5.
  • the two teeth arranged on top of each other form an engaging tooth with a dovetail cross-section which is used to engage slidably the case of the contact device inside an external support ( Figure 6 ) provided with a plurality of insertion recesses, each of which is able to receive an engaging member.
  • At least one of the sides 3,5 extends beyond the end wall 7,8 in the form of a resilient elastic tongue 28 terminating in an engaging tooth 30 co-operating with a stop member of the external support.
  • the lever 16 has, arranged between its end hinged on the half-shells and its free end 23, suitably shaped and knurled to ensure a sufficient pressing area, an eyelet opening 24 which allows the introduction of a cable end inside the case formed by the two half-shells 1 and 2 joined together.
  • the walls of the opening 24, which are suitably tapered to form a guide for directing the end of the cable, extend inside the two half-shells.
  • the wall 25 of the opening 24 closest to the pins 17,18 and the adjacent sides of the opening perform the function of a thrusting part which, when the lever 16 is operated (by exerting a suitable pressure on its end portion and causing, with reference to the figure, a slight rotation thereof in the anti-clockwise direction) interferes with the contact spring 14, deforming it.
  • the contact element 13 has a flat contact side 31 perpendicular to which an eyelet 32 extends.
  • the contact element In the opposite direction to that of the eyelet 32, the contact element, suitably folded, extends in the form of two superimposed blades 33,34 which form a contact grip, for example for electrical connection to a conducting bar.
  • the contact grip protrudes from the case formed by the two half-shells 1 and 2 through an opening formed by two undercuts 35,36 formed in the sides 4 and 6.
  • a metal rider 37 made of music steel is mounted on the grip, inside the case, as indicated by the arrows 38,39.
  • the blades 33,34 may be replaced by a single contact blade 40, as shown in Figure 5 .
  • the contact blade 40 is connected to the flat side 31 of the contact element by an elongated portion 29 which is folded in a U shape and provides the blade with a certain elasticity in the axial direction of the blade.
  • a contact spring 55 which is similar or identical to the spring 14 ( Fig. 1 ), may be inserted in the saddle 29, as indicated by the arrow 56.
  • the blades 33,34 may be replaced by two short tongues 41,42 which are suitably folded in order to grip permanently an end 43 of an electric cable 27, by means of crimping, as shown in Figure 4 .
  • permanent fixing of the cable end may be performed by means of soldering.
  • these walls have suitable undercuts (only one of which 44 is visible) which are arranged next to each other and form said opening.
  • the contact spring 14 consists of a tongue of music steel folded in a U shape with a flattened and tapered end 45 which is inserted in the eyelet 32 of the contact element 13 and presses against the flat side 31.
  • the opposite end 46 of the contact spring which is also tapered and folded externally in the form of an L, is inserted in the eyelet 32 and arranged in contact with the rim 47 of the eyelet opposite the flat side 31.
  • Figure 2 shows the arrangement of the various parts in the insulating case with the lever 16 and the spring 14 in the rest position.
  • Figure 3 shows the arrangement of the various parts when the lever 16 is operated with a small rotation in an anti-clockwise direction and exerts a thrusting force, with its wall 25, against the portion 49 of the contact spring.
  • the end 45 of the contact spring is spaced apart from the flat side 31 of the contact element and it is possible to insert, through the opening 24 of the actuating lever, a cable end 50 which is arranged freely and without force between the flat side 31 of the contact element and the end 45 of the contact spring.
  • the pressure exerted by the spring which is distributed along the whole extension of the end 45, ensures that there is a broad contact section such that the contact resistance is minimal.
  • the structure of the lever with the point of application of the resistive force between the fulcrum and the point of application of the active force, ensures amplification of the active force such that operation performed to open the contact spring is easier.
  • the device described may be used as a single-wire flying connector, but advantageously may be used as a component of a multi-pole connector.
  • FIG. 6 The exploded perspective view of Figure 6 shows in schematic form a preferred embodiment of this type of connector.
  • a case 51 made of insulating material has, formed internally, a plurality of seats, for example 6 seats (or also a single collective seat, as shown), inside each of which a connection device such as that already described may be inserted.
  • a side surface of the case has, opposite each seat, a slit 52, open at a front end, for insertion of the blade or blades such as 33,34 or 40 ( Figs. 1 , 5 ) of the connection device.
  • An engagement groove 53 is formed on the opposite side of each of the seats and has a dovetail cross-section inside which the engaging tooth 26 of the connection device is inserted.
  • the engagement grooves terminate in a stop member 54 which defines the insertion depth of the connection devices inside the respective seats.
  • This tooth prevents disengagement of the connection device from the seat, unless the tooth 30 is deliberately disengaged from the stop member 54.
  • This type of connector which may be formed according to requirements, is particularly advantageous for connection to the conducting bars of a three-phase system with neutral and to a pair of bars for an auxiliary voltage. Generally, the user does not require connection to all the conducting bars, but only to some of these.
  • connection devices even only two which are arranged in a suitable manner, depending on the connection required.
  • case 51 may be replaced by a simple support base-piece which may have two sides corresponding to the base and to the top of the case shown in Figure 6 .
  • the base-piece has, formed inside it, the grooves 54 at a distance from each other such that the connection devices mounted on the base are in contact with each other.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)

Claims (7)

  1. Elektrische Verbindungsvorrichtung des Typs, bei welchem eine in einem aus isolierendem Material (1, 2) hergestellten Gehäuse angeordnete metallische Blattfeder (14) von einem manuell betätigten Hebel gedrückt wird, um einen Raum zwischen einem leitenden Kontaktelement (13), das in dem Gehäuse untergebracht ist, und der Blattfeder (14) zu bilden und das Einführen des Endes eines elektrischen Kabels (50) in den Raum zu ermöglichen, dadurch gekennzeichnet, daß der Hebel in dem Gehäuse angelenkt ist und eine zwischen der Hebeldrehachse (17, 18) und einem Betätigungsende (23) desselben angeordnete Öffnung (24) zum Einführen des Kabelendes (50) und Führen desselben in den Raum besitzt.
  2. Vorrichtung nach Anspruch 1, bei welcher die Blattfeder (14) ein abgeflachtes Ende (45) besitzt, welches im Ruhezustand auf einer flachen Oberfläche (31) des Kontaktelementes (13) ruht.
  3. Vorrichtung nach Anspruch 2, bei welcher die Öffnung (24) einem Abschnitt (49) der Feder (14) zugewandt ist, der in bezug auf das abgeflachte Ende (45) geneigt und mit letzterem verbunden ist, wobei der geneigte Abschnitt (49) eine Führung in Richtung auf den Raum bildet.
  4. Vorrichtung nach einem der vorangehenden Ansprüche, wobei das Gehäuse (1, 2) die Form eines Parallelepipeds besitzt, von dem eine Seite von dem Hebel (16) gebildet wird und das auf der Seite (7, 8), die dem Hebel gegenüberliegt, eine Öffnung (44) zum Einführen eines elektrischen Kabels (27) besitzt, das permanent mit dem Kontaktelement (13) verbunden ist.
  5. Vorrichtung nach einem der vorangehenden Ansprüche, wobei das Kontaktelement (13) wenigstens eine Kontaktklinge (33, 34, 40) besitzt, die von einer Seitenwand (4, 6) des Gehäuses vorspringt.
  6. Vorrichtung nach einem der vorangehenden Ansprüche, wobei das Gehäuse auf seiner Außenseite Befestigungsmittel (26, 28, 30) besitzt, die mit einem Träger eine Rastverbindung eingehen.
  7. Verbinder, umfassend wenigstens ein Paar von Vorrichtungen nach einem der vorangehenden Ansprüche und einen aus isolierendem Material hergestellten Träger (51) für zumindest das Paar von Vorrichtungen, mit welchem er eine Rastverbindung eingeht.
EP08425054A 2008-01-31 2008-01-31 Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird Not-in-force EP2096714B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES08425054T ES2343096T3 (es) 2008-01-31 2008-01-31 Dispositivo de conexion electrico con resorte de contacto accionado para un brazo con una abertura de entrada para el extremo de un cable electrico.
DE602008000975T DE602008000975D1 (de) 2008-01-31 2008-01-31 Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird
AT08425054T ATE463863T1 (de) 2008-01-31 2008-01-31 Elektrische verbindungsvorrichtung mit kontaktfeder, die von einem hebel mit einer einlassöffnung für das ende eines elektrischen kabels betrieben wird
EP08425054A EP2096714B1 (de) 2008-01-31 2008-01-31 Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird
PT08425054T PT2096714E (pt) 2008-01-31 2008-01-31 Dispositivo de ligação eléctrica com mola de contacto comandada por uma alavanca que possui uma abertura de entrada para o terminal de um cabo eléctrico

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425054A EP2096714B1 (de) 2008-01-31 2008-01-31 Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird

Publications (2)

Publication Number Publication Date
EP2096714A1 EP2096714A1 (de) 2009-09-02
EP2096714B1 true EP2096714B1 (de) 2010-04-07

Family

ID=39512679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425054A Not-in-force EP2096714B1 (de) 2008-01-31 2008-01-31 Elektrische Verbindungsvorrichtung mit Kontaktfeder, die von einem Hebel mit einer Einlassöffnung für das Ende eines elektrischen Kabels betrieben wird

Country Status (5)

Country Link
EP (1) EP2096714B1 (de)
AT (1) ATE463863T1 (de)
DE (1) DE602008000975D1 (de)
ES (1) ES2343096T3 (de)
PT (1) PT2096714E (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005465B3 (de) 2012-03-20 2013-05-08 Wieland Electric Gmbh Federklemme
DE202013100635U1 (de) * 2013-02-13 2013-03-04 Wago Verwaltungsgesellschaft Mbh Federklemmkontakt und Verbindungsklemme für elektrische Leiter
DE202013101582U1 (de) * 2013-04-15 2014-07-16 Weidmüller Interface GmbH & Co. KG Federkraftklemmelement mit Schwenkhebel
DE102014119421B4 (de) * 2014-12-22 2017-02-02 Wago Verwaltungsgesellschaft Mbh Verbindungsklemme und Verfahren zur Montage einer Verbindungsklemme
DE102015104625B4 (de) * 2015-03-26 2022-11-17 Phoenix Contact Gmbh & Co. Kg Leiteranschlussklemme
DE202015102045U1 (de) * 2015-04-24 2016-07-26 Weidmüller Interface GmbH & Co. KG Federkraftklemmelement mit Schwenkhebel
CN108429042B (zh) * 2018-03-20 2024-10-11 苏州惠华电子科技有限公司 一种紧凑型快速接线连接器
US11791573B2 (en) 2021-04-15 2023-10-17 Leviton Manufacturing Co., Inc. Wire terminals and method of uses
WO2023154177A1 (en) * 2022-02-09 2023-08-17 Leviton Manufacturing Co., Inc. Wire terminals and method of uses
LU502541B1 (de) * 2022-07-21 2024-01-22 Phoenix Contact Gmbh & Co Anschlussanordnung mit einer Mehrzahl von Anschlussklemmen zum Anschließen elektrischer Leitungen
LU502539B1 (de) * 2022-07-21 2024-01-22 Phoenix Contact Gmbh & Co Anschlussanordnung mit zumindest einer Anschlussklemme zum Anschließen einer elektrischen Leitung
LU502538B1 (de) * 2022-07-21 2024-01-22 Phoenix Contact Gmbh & Co Anschlussklemme zum Anschließen einer elektrischen Leitung
DE202022105273U1 (de) 2022-09-19 2024-01-03 WAGO Verwaltungsgesellschaft mit beschränkter Haftung Kontaktstück, Kontakteinsatz, Steckverbinder, Blechzuschnitt und Verteilerblock

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Publication number Priority date Publication date Assignee Title
JPS5417094Y2 (de) * 1973-12-05 1979-07-03
FR2829878A1 (fr) 2001-09-20 2003-03-21 Entrelec Dispositif de raccordement a ressort de connexion manoeuvre par une came
ES2247929B1 (es) * 2004-06-10 2007-04-01 Simon, S.A. Mecanismo de embornado y desembornado rapido par dispositivos electricos.
FR2875944B1 (fr) * 2004-09-27 2006-12-15 Legrand Sa Appareil comportant un bloc de raccordement
DE102006005260A1 (de) * 2006-02-02 2007-08-16 Phoenix Contact Gmbh & Co. Kg Elektrische Anschlußklemme
DE102006010309B4 (de) 2006-03-07 2008-01-24 Phoenix Contact Gmbh & Co. Kg Dosenklemme

Also Published As

Publication number Publication date
ES2343096T3 (es) 2010-07-22
PT2096714E (pt) 2010-05-21
EP2096714A1 (de) 2009-09-02
DE602008000975D1 (de) 2010-05-20
ATE463863T1 (de) 2010-04-15

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