EP1590818B1 - Dispositif borne de raccordement pour le raccordement d'une cosse de cable de ceinture et appareil electrique correspondant - Google Patents

Dispositif borne de raccordement pour le raccordement d'une cosse de cable de ceinture et appareil electrique correspondant Download PDF

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Publication number
EP1590818B1
EP1590818B1 EP04705093A EP04705093A EP1590818B1 EP 1590818 B1 EP1590818 B1 EP 1590818B1 EP 04705093 A EP04705093 A EP 04705093A EP 04705093 A EP04705093 A EP 04705093A EP 1590818 B1 EP1590818 B1 EP 1590818B1
Authority
EP
European Patent Office
Prior art keywords
clamping
connection piece
screw
terminal
frame
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 - Fee Related
Application number
EP04705093A
Other languages
German (de)
English (en)
Other versions
EP1590818A1 (fr
Inventor
Hartmut Peters
Willy Sabisch
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1590818A1 publication Critical patent/EP1590818A1/fr
Application granted granted Critical
Publication of EP1590818B1 publication Critical patent/EP1590818B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H01H2001/5861—Box connector with a collar or lug for clamping internal rail and external conductor together by a tightening screw

Definitions

  • the invention relates to a terminal device for an electrical device, in particular for connecting a closed with a ring cable lug electrical conductor, with a connector, a terminal surrounding the clamping frame and a clamping screw, wherein the clamping frame is provided with a threaded bore with the clamping screw in such a way cooperates, that by rotation of the clamping screw of the clamping frame for producing a KlemmKey réelle of the electrical conductor is displaceable against the connecting piece.
  • the invention further relates to an electrical device equipped with such a terminal device.
  • Screw terminals are widely used as a terminal device in electrical connection technology for contacting electrical conductors to electrical equipment.
  • a screw clamp comprises a clamping screw which can be screwed into the threaded opening of a connecting piece.
  • An electrical conductor to be connected is in this case clamp-contacted between the screw head of the clamping screw and the connecting piece.
  • a connecting device in which a nut is arranged largely captive in a housing of the connecting device via a clip connection.
  • the housing has a through hole on two opposite sides, wherein the through holes are arranged in the axial direction congruent to the threaded bore of the nut.
  • a flat, executed with another through hole connector of an electrical device can be introduced such that the other through hole with the above Through holes in the axial direction is arranged congruent.
  • an electrical conductor between the screw head and the housing is clamp-contacted by means of a clamping screw penetrating the housing, the nut and the connecting piece.
  • each contact strip has a threaded bore.
  • the connecting device comprises a plurality of clamping screws with which electrical terminals provided with frame terminals can be connected to the contact strip of the electrical device by screwing the clamping screws into the threaded bores.
  • a frame clamp a special form of a screw is called, in which a mostly approximately square, closed clamping frame is provided in the periphery of a corresponding with the clamping screw threaded hole is introduced.
  • the clamping frame fixed to the housing, wherein the clamping screw is axially movable relative to the housing and can be screwed into the clamping frame for the preparation of the Klemmtitle ist.
  • the clamping screw fixed on the housing in the axial direction, and the clamping frame is advanced upon rotation of the clamping screw against a projecting into the clamping frame, fixed to the housing connection piece.
  • a common form of a cable lug is a so-called ring cable lug. This carries at its free end a ring-shaped and provided with a screw opening tail. This tail is fixed in a conventional screw by being underlaid in the manner of a washer of the clamping screw.
  • the use of a ring cable lug is advantageous in that as a result of the ring-like clamping screw surrounding the end of the conductor is held captive even with loose-fitting clamping screw on the terminal device.
  • the clamping screw To be able to clamp a ring cable lug to a conventional screw clamp, the clamping screw must necessarily be completely unscrewed from the corresponding threaded hole of the connection piece. In a conventional screw clamp, however, the clamping screw is held only at the threaded hole. After unscrewing the clamping screw, this is thus loose.
  • the clamping of the ring cable lug is thereby associated with a relatively complex handling.
  • a simple handling of the terminal device is especially desirable if, due to confined space in a device, the terminal device is poorly accessible. Under these circumstances, there is usually an increased risk that the clamping screw falls when unscrewing and sometimes remains unrecoverable or unreachable.
  • the invention has for its object to provide a particularly suitable for connecting a particular closed with a ring cable lug electrical conductor terminal device, which is structurally very simple and allows easy handling with respect to clamping and disconnecting the electrical conductor.
  • the invention is further based on the object to design an electrical device in a structurally simple way to the effect that a simple connection of a particular closed with a ring cable lug conductor is possible.
  • the terminal device comprises a kind of ordinary frame terminal a connector, a surrounding clamping frame and a clamping screw which is screwed into a mounted on the circumference of the clamping frame threaded hole.
  • a ring cable lug further projecting from the connection piece in the direction of a clamping surface of the clamping frame retaining projection is provided, which in a closed position of the terminal device in a corresponding opening of the clamping frame in the manner of a latch, and spaced in an open position of the terminal device of the clamping surface is.
  • the object with respect to the terminal device according to the invention is achieved by the features of claim 4.
  • This alternative solution is structurally constructed inversely to the first-mentioned solution, insofar as the retaining projection is fastened here to the clamping surface of the clamping frame and aligned in the direction of the connecting piece, and the corresponding opening is introduced into the connecting piece.
  • the terminal clamping device combines the advantages of a conventional screw with respect to the secure mounting of a ring cable lug with the ease of use of a conventional frame clamp.
  • the holding projection passes through the screw opening of the ring cable lug inserted into the connection clamping device and thereby captivally holds it to the connection clamping device.
  • This holder is stabilized in particular by the fact that the retaining projection engages in the opposite corresponding opening and thus effectively locks the ring cable lug to the terminal device.
  • the terminal device is structurally simple and allows a simple, in particular automatable assembly.
  • the retaining projection is fixed either with the connector stationary, in particular soldered or pressed.
  • the retaining projection is formed as part of the clamping screw.
  • a bore is introduced into the connecting piece, through which the retaining projection projects.
  • a stable and structurally simple mounting of the terminal device is achieved in that the connector is fixedly fixed to a housing.
  • the clamping screw is also advantageously held rotatably and captively in the housing.
  • the captive mounting of the clamping screw can be made in various ways. For example, it is possible, the clamping screw on Rivet connection piece.
  • the clamping screw is held captive in the housing by a housing projection which engages behind the screw head.
  • the housing expediently has a positioning contour for a ring cable lug.
  • This positioning contour comprises at least one rear wall, on which the ring cable lug strikes when inserted into the terminal device such that its screw opening is in axial overlap with the opening in the clamping surface and the retaining projection.
  • the positioning contour further comprises side walls, which bring about a lateral centering of the screw opening of the ring cable lug with respect to the opening and the retaining projection.
  • connection clamping device according to the invention is integrated in the device.
  • the housing of the terminal device is in this case designed in particular integrally with the housing of the device.
  • connection clamping device makes it possible to contact the device in a simple manner with electrical supply lines even under tight space conditions.
  • the integration of the terminal connection device according to the invention in the device makes it possible to produce the device particularly inexpensive.
  • a terminal device 1 is shown, which is integrated in the only indicated housing 2 of an electrical device 3.
  • the device 3 is, for example, an electrical circuit breaker.
  • the terminal device 1 comprises a plate or rod-shaped connector 4 made of electrically conductive material which is fixedly fixed to the housing 2 and protrudes with its free end 5 in an externally accessible insertion slot 6 of the housing 2.
  • the terminal device 1 further comprises a clamping frame 7, which has the shape of a sleeve with a substantially quadrangular cross-section, and which is turned up on the free end 5 of the connector 4, so that the connector 4 passes through the clamping frame 7.
  • the clamping frame 7 is in this case provided with a circumferentially introduced threaded hole 8.
  • the threaded hole 8 is in engagement with a clamping screw 9, which is rotatably guided in a housing bore 10, and the screw 11 rests on the connector 4.
  • a housing projection 12 is further provided, which protrudes into the housing bore 10 of the head side of the clamping screw 9. The clamping screw 9 is thus held approximately stationary between the connecting piece 4 and the housing projection 12 in the axial direction and thus secured captively on the housing 2.
  • the terminal device 1 is particularly intended to fix a closed end with a ring cable lug 13 electrical conductor 14 captive.
  • the connecting piece 4 is provided with an approximately cylindrical holding projection 15.
  • the holding projection 15 is fixed fixedly on the connecting piece 4 by a solder or press connection and projects from the surface of the connecting piece 4 facing away from the clamping screw 9 approximately parallel to the screw axis 16 of the clamping screw 9.
  • the retaining projection 15 is located in particular within the region of the connecting piece 4 surrounded by the clamping frame 7 and is aligned with the surface of the clamping frame 7 opposite the threaded bore 8, which is referred to below as a clamping surface 17.
  • the clamping surface 17 is in this case provided with an opening 18 which is arranged in alignment with the retaining projection 15 in the axial direction with respect to the screw axis 16.
  • the opening 18 is dimensioned large enough to accommodate the retaining projection 15 with little play can.
  • the electrical conductor 14 comprises a preferably flexible, consisting of several individual strands power cable 19, which is connected at the end to the ring cable lug 13.
  • the ring cable lug 13 is crimped with the power cable 19 with a crimping region 20 facing the power cable 19.
  • the ring cable lug 13 On the free end, the ring cable lug 13 carries a flat clamping web 21, into which a screw opening 22 is inserted. His name in the connection technology name of the ring cable lug 13 therefore receives, that the screw opening 22 has an annularly closed edge.
  • the terminal device 1 shows the terminal device 1 in its open position, i. Before clamping the conductor 14.
  • the clamping screw 9 is largely, but not completely unscrewed from the threaded hole 8 of the clamping frame 7.
  • an axial distance is formed between the unit formed from the connection piece 4 and the retaining projection 15 on the one hand and the clamping surface 17 of the clamping frame 7 on the other hand, which corresponds to at least the simple, but preferably at least twice, material thickness of the clamping web 21.
  • the clamping web 21 of the ring cable lug 13 is first inserted in the insertion slot 23 in the insertion direction 23 between the retaining projection 15 and the clamping surface 17 in the insertion slot 6.
  • the insertion of the ring cable lug 13 is facilitated by a positioning contour of the housing 2 in the region of the insertion slot 6, which comprises at least one rear wall 24 of the insertion slot 6.
  • the rear wall 24 is arranged such that the stop of the inserted in the insertion direction 23 clamping web 21 on the rear wall 24, the screw hole 22 approximately centered, but at least rests with the opening 18.
  • the insertion slot 6 also has two side walls 25, which are preferably designed as part of the positioning contour, the screw opening 22 is automatically centered laterally with respect to the opening 18 when inserting the clamping web 21 in the insertion slot 6.
  • the clamping screw 9 is now screwed into the clamping frame 7 by means of an actuating tool, not shown, in particular a screwdriver.
  • an actuating tool not shown, in particular a screwdriver.
  • the retaining projection 15 passes through the screw opening 22 of the ring cable lug 13 and penetrates into the opening 18 in the manner of a bolt.
  • the ring cable lug 13 is thus held captive on the terminal device 1.
  • the screwing of the clamping screw 9 is continued until, according to FIG 2, the clamping web 21 of the ring cable lug 13 is clamped between the connecting piece 4 and the clamping surface 17 and thus clamped.
  • This position of the terminal device 1 is referred to as the closed position.
  • the conductor 14 and the device 3 are thus electrically conductively connected to one another via the ring cable lug 13 and the connection piece 4.
  • FIGS. 3 and 4 show an alternative embodiment of the connection clamping device 1 in the open position or in the closed position.
  • the retaining projection 15 is integrally formed on the clamping screw 9.
  • the retaining projection 15 is formed as an opposite to the body 26 of the clamping screw 9 tapered extension, which is concentric with the body 26 with respect to the screw axis 16 and protrudes beyond the screw 11.
  • the holding projection 15 corresponds to a bore 27 introduced into the connecting piece 4, the diameter of which corresponds at least to the diameter of the holding projection 15, which, however, is dimensioned to be small compared to the diameter of the body 26.
  • the retaining projection 15 passes through the bore 27 and protrudes in the manner described above on the surface of the connecting piece 4 facing away from the clamping screw 9.
  • FIG. 5 and 6 Another embodiment of the terminal device 1 is shown in Figures 5 and 6 in the open position and closed position.
  • the retaining projection 15 is attached to the clamping surface 17 and protrudes from there approximately coaxially with the screw axis 16 in the direction of the connecting piece 4th
  • This holding projection 15 engages in the closed position shown in FIG 6 in the manner of a bolt in a corresponding opening 28 of the connector 4, which is approximately centrally introduced to the screw axis 16 in the connector 4.
  • a concentric with the screw axis 16 introduced into the screw 11 recess 29 is further provided which extends the opening 28 quasi in the clamping screw 9 into it.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

L'invention concerne un dispositif borne de raccordement (1) pour un appareil électrique (3), qui a une structure particulière simple et qui permet une connexion simple du point de vue de la manipulation d'un conducteur électrique (14) terminé notamment par une cosse de câble de ceinture (13). Le dispositif borne de raccordement (1) selon l'invention comprend un élément de connexion (4) entouré par un cadre de serrage (7), ainsi qu'une vis de serrage (9). Le cadre de serrage (7) est muni d'un alésage fileté (8) qui coopère avec la vis de serrage (9) de sorte que le cadre de serrage (7) peut être déplacé contre l'élément de connexion (4) par rotation de la vis de serrage (9) afin d'établir un contact de serrage d'un conducteur électrique (14). L'élément de connexion (4) présente une partie d'arrêt en saillie (15) qui fait saillie en direction d'une surface de serrage (17), opposée à l'alésage fileté (8), du cadre de serrage (7). Ainsi, cette partie en saillie s'insère à la manière d'une targette dans une ouverture correspondante (18) de la surface de serrage (17) dans une position fermée du dispositif borne de raccordement (1) et se trouve à distance de la surface de serrage (17) dans une position ouverte du dispositif borne de raccordement (1).

Claims (8)

  1. Dispositif de serrage de raccordement (1) pour un appareil électrique (3) comprenant une pièce de raccordement (4), un cadre de serrage (7) entourant la pièce de raccordement (4), et une vis de serrage (9), le cadre de serrage (7) étant muni d'un trou taraudé (8) qui coopère avec la vis de serrage (9) de sorte que, par la rotation de la vis de serrage (9), le cadre de serrage (7) peut être déplacé contre la pièce de raccordement (4) pour réaliser une mise en contact serrée d'un conducteur électrique (14), caractérisé par une saillie de retenue (15), faisant saillie depuis la pièce de raccordement (4) en direction d'une surface de serrage (17) du cadre de serrage (7) opposée au trou taraudé (8), saillie de retenue qui, dans une position de fermeture, est placée à la façon d'un pêne dans une ouverture (18) correspondante de la surface de serrage (17) et qui, dans une position d'ouverture, est éloignée de la surface de serrage (17).
  2. Dispositif de serrage de raccordement (1) selon la revendication 1, caractérisé en ce que la saillie de retenue (15) est immobilisée sur la pièce de raccordement (4).
  3. Dispositif de serrage de raccordement (1) selon la revendication 1, caractérisé en ce que la saillie de retenue (15) est immobilisée sur la vis de serrage (9) et passe dans un alésage (27) réalisé dans la pièce de raccordement (4).
  4. Dispositif de serrage de raccordement (1) pour un appareil électrique (3) comprenant une pièce de raccordement (4), un cadre de serrage (7) entourant la pièce de raccordement (4), et une vis de serrage (9), le cadre de serrage (7) étant muni d'un trou taraudé (8) qui coopère avec la vis de serrage (9) de sorte que, par la rotation de la vis de serrage (9), le cadre de serrage (7) peut être déplacé contre la pièce de raccordement (4) pour réaliser une mise en contact serrée d'un conducteur électrique (14), caractérisé par une saillie de retenue (15), faisant saillie, depuis une surface de serrage (17) du cadre de serrage (7) opposée au trou taraudé (8), en direction de la pièce de raccordement (4), saillie de retenue qui, dans une position de fermeture, est placée à la façon d'un pêne dans une ouverture (28) correspondante de la pièce de raccordement (4) et qui, dans une position d'ouverture, est éloignée de la pièce de raccordement (4).
  5. Dispositif de serrage de raccordement (1) selon une des revendications 1 à 4, caractérisé en ce que la pièce de raccordement (4) est immobilisée à poste fixe sur un boîtier (2).
  6. Dispositif de serrage de raccordement (1) selon une des revendications 1 à 5, caractérisé en ce que la vis de serrage (9) est retenue dans un boîtier (2) de façon rotative et imperdable.
  7. Dispositif de serrage de raccordement (1) selon une des revendications 1 à 6, caractérisé par un contour de positionnement (24, 25) pour une cosse de câble annulaire (13) terminant le conducteur (14).
  8. Appareil électrique (3) ayant un dispositif de serrage de raccordement (1) selon l'une des revendications 1 à 7.
EP04705093A 2003-02-04 2004-01-26 Dispositif borne de raccordement pour le raccordement d'une cosse de cable de ceinture et appareil electrique correspondant Expired - Fee Related EP1590818B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2003104480 DE10304480B4 (de) 2003-02-04 2003-02-04 Anschlussklemmvorrichtung zum Anschluss eines Ringkabelschuhs und zugehöriges elektrisches Gerät
DE10304480 2003-02-04
PCT/EP2004/000630 WO2004070756A1 (fr) 2003-02-04 2004-01-26 Dispositif borne de raccordement pour le raccordement d'une cosse de cable de ceinture et appareil electrique correspondant

Publications (2)

Publication Number Publication Date
EP1590818A1 EP1590818A1 (fr) 2005-11-02
EP1590818B1 true EP1590818B1 (fr) 2007-03-21

Family

ID=32730733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04705093A Expired - Fee Related EP1590818B1 (fr) 2003-02-04 2004-01-26 Dispositif borne de raccordement pour le raccordement d'une cosse de cable de ceinture et appareil electrique correspondant

Country Status (5)

Country Link
EP (1) EP1590818B1 (fr)
JP (1) JP2006518086A (fr)
CN (1) CN1745445A (fr)
DE (2) DE10304480B4 (fr)
WO (1) WO2004070756A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350675C (zh) * 2005-05-31 2007-11-21 时珺 自举式接线端子
EP2293387A1 (fr) * 2009-09-02 2011-03-09 Siemens Aktiengesellschaft Elément de raccordement combiné pour le raccordement de conducteurs électriques
DE102009060373A1 (de) * 2009-12-24 2011-06-30 Schneider Electric Industries Sas Elektrische Klemmvorrichtung
DE102011076563A1 (de) * 2011-05-26 2012-11-29 Siemens Aktiengesellschaft Rahmenklemmelement für elektromechanische Schaltgeräte
CN107634355B (zh) * 2017-09-16 2023-04-07 国家电网公司 配电网装置断线连接件
JP7119762B2 (ja) * 2018-08-22 2022-08-17 トヨタ自動車株式会社 接続モジュール
CN111048913B (zh) * 2019-12-25 2021-04-27 中国第一汽车股份有限公司 一种电线连接装置

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GB347765A (en) * 1930-03-05 1931-05-07 Pieter Justinus De Wet Improvements in and relating to electric terminals
US3891298A (en) * 1973-09-17 1975-06-24 Westinghouse Electric Corp Clip connected terminal lug
DD201075A1 (de) * 1981-11-20 1983-06-29 Henry Baumruker Offene rahmenklemme fuer elektrische schaltgeraete
FR2563947B1 (fr) * 1984-05-02 1986-08-22 Alsthom Cgee Agencement de raccordement par borne protegee pour appareillage electrique
FR2653947A1 (en) * 1989-10-30 1991-05-03 Silvestrini Franck Device for triggering the automatic opening of a closing system actuated by at least one electric motor
FR2667989B1 (fr) * 1990-10-16 1994-03-04 Telemecanique Sa Borne de connexion a vis imperdable et bornier utilisant des bornes de ce genre.
DE9412245U1 (de) * 1994-07-29 1994-11-03 Weidmueller Interface Klemme zum Anschließen von Ringkabelschuhen
US5493085A (en) * 1995-02-17 1996-02-20 Eaton Corporation Spring clip assembly for electrical connections to flat stabs and switches incorporating the same
JP3156540B2 (ja) * 1995-04-11 2001-04-16 富士電機株式会社 電気機器の端子装置
DE29508609U1 (de) * 1995-05-24 1995-08-03 Kloeckner Moeller Gmbh Rahmenklemme
ES2122901B1 (es) * 1996-06-03 1999-08-01 Power Controls Iberica Sl Dispositivo de desplazamiento guiado de tornillos de bornes de conexion para aparellaje electrico.
FR2795560B1 (fr) * 1999-06-23 2003-04-04 Entrelec Sa Serre-fil muni d'un dispositif de protection contre le toucher
US6280264B1 (en) * 2000-12-28 2001-08-28 Eaton Corporation Terminal connector securing wire with a wide range of diameters to a conductor of an electric power switch and an electric power switch incorporating the terminal connector
US6529112B1 (en) * 2001-06-13 2003-03-04 Siemens Energy & Automation, Inc. Ring tongue lug retainer molded case circuit breaker

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Also Published As

Publication number Publication date
CN1745445A (zh) 2006-03-08
DE502004003275D1 (de) 2007-05-03
EP1590818A1 (fr) 2005-11-02
DE10304480A1 (de) 2004-08-19
WO2004070756A1 (fr) 2004-08-19
DE10304480B4 (de) 2005-02-03
JP2006518086A (ja) 2006-08-03

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