EP0809325B1 - Dispositif d'installation électrique et borne de connexion pour le dispositif - Google Patents

Dispositif d'installation électrique et borne de connexion pour le dispositif Download PDF

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Publication number
EP0809325B1
EP0809325B1 EP97108102A EP97108102A EP0809325B1 EP 0809325 B1 EP0809325 B1 EP 0809325B1 EP 97108102 A EP97108102 A EP 97108102A EP 97108102 A EP97108102 A EP 97108102A EP 0809325 B1 EP0809325 B1 EP 0809325B1
Authority
EP
European Patent Office
Prior art keywords
clamping
terminal
screw
busbar
conducting wire
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
EP97108102A
Other languages
German (de)
English (en)
Other versions
EP0809325A1 (fr
Inventor
Klaus-Peter Eppe
Volker Schmitt
Rolf Goehle
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 Patent GmbH
Original Assignee
ABB Patent GmbH
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 Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0809325A1 publication Critical patent/EP0809325A1/fr
Application granted granted Critical
Publication of EP0809325B1 publication Critical patent/EP0809325B1/fr
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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member

Definitions

  • the invention relates to a terminal for an electrical installation device according to the preamble of claim 1.
  • a circuit breaker a residual current circuit breaker, is used as the installation device or any other installation device in which such terminals are provided.
  • connection terminal which has a box-shaped terminal frame, the one receiving the clamping screw Wall are formed by two superimposed web ends, being on the web projections are provided which in the side walls of the clamping frame be inserted or pressed in so that the clamping frame becomes jammed not deformed.
  • a terminal has also become known in which an annular box frame and an annular clamp frame are intertwined, wherein the clamping screw, which is screwed into the terminal frame, a web of the Reaches through the box frame. Between the box frame and the terminal frame on the one hand and the web and the head of the clamping screw on the other hand can be electrical Connection elements are clamped.
  • connection line With the usual terminals used in a circuit breaker, is, as already indicated, the terminal lug of a busbar between the Screw head and the upper web of the box frame inserted and clamped in it; on the other hand, the connection line, seen from the front, is behind attached to the busbar. For example, if a three-phase busbar block is clamped, then it can no longer be seen whether the connecting conductor is correctly clamped. This can result in incorrect connections.
  • a screw terminal has become known rectangular, frame-shaped clamp part and a U-shaped pressure piece, wherein a frame part can be inserted or inserted into the terminal part, so that are generated by the frame part two connecting conductor receiving spaces, in the different Connection conductor inserted and clamped in it.
  • This Screw terminal consists of three parts, namely the U-shaped pressure piece, the frame-shaped clamp part and the frame part.
  • US 4,526,437 A1 describes a connector made from a u-shaped band is that the leg ends are bent into a cylindrical shape. The inner The cylindrical shape has an internal thread and around the cylindrical shape a ring is arranged, which expands when the clamping screw is screwed in should prevent.
  • the object of the invention is to provide a terminal for an installation switch to create the type mentioned, in which the disadvantages of the known terminals prevents and incorrect connections are avoided; Furthermore the terminal should be designed with fewer parts.
  • the clamp body has a cylindrical shape, which at one end Internal thread for receiving the clamping screw and on opposite Surface lines axially extending slots, the length of which is less than the length of the Terminal body, through which the terminal lug of the busbar and / or the lead wire can be inserted into the terminal.
  • the clamping screw is as Headless stud bolt (stud or grub screw) that is fully formed in the terminal body can be screwed in.
  • a clamping piece is inserted into the clamp body, the two Divide terminal spaces from each other, so that the lead wire in each terminal space and / or the terminal lug can be inserted and clamped therein.
  • the clamping piece can then at least on the terminal surface that the Clamping screw is facing, be V-shaped; this creates a gutter, in which the lead wire is guided against rotation. That means that when screwing the clamping screw the lead wire related to the clamping piece not is twisted.
  • the clamping piece is preferably bent rectangular and has an elongated Tab that reaches through an opening into the interior of the installation switch, so that an inner conductor of the installation switch can be connected to it.
  • a pressure piece of the clamping screw assigned is preferably a pressure piece of the clamping screw assigned.
  • the terminal requires a few openings on the installation device, such as an opening at the top the front, through which the clamping screw is accessible, then further Openings on the side wall through which the connecting conductor or the connecting lug can be inserted into the terminal.
  • the opening is through the connector is inserted closer to the front than the opening through which the connecting lug is inserted. This enables the conductor connections are more accessible and more visible, especially in multi-row Distributions.
  • a major advantage is that accessibility and visibility the conductor connections in multi-row distributions are significantly improved. Furthermore the permissible torque is also higher when a conductor is jammed, which is due to the fact that the screw in a thread within the Leg, so the cylindrical shape is guided. Because in this version the thread pitch can be increased, the number of screw revolutions can be reduced, which are required to fix the conductor.
  • FIG. 1 shows a clamp 10 with a clamp body 11, a clamp screw 12 and a clamping piece 13, which is drawn outside the clamp body, is shown.
  • 1 belongs to the terminal body 11 to the state of the art, such as has become known from US-4,526,437.
  • the arrangement shown in FIG. 1 differs from that according to the invention in that the clamping body (see Fig. 4) is cylindrical. Like beyond that Clamping piece 13 and the clamping screw 12 are inserted into the clamp body according to FIG. 4 are shown in FIG. 1.
  • the clamp body 11 has a U-shape with a web 14 and thereon adjoining legs 15 and 16, which in the web 14 adjacent area 17 and 18 straight or flat and perpendicular to the also flat Are aligned.
  • the flat sections 17 and 18 follow sections 19 and 20 of arcuate and curved design in cross section, which complement each other in a cylindrical shape, the central axis of which is perpendicular to the web and on the inner surface of which an internal thread 21 is attached.
  • the free ends of the Leg sections 19 and 20 have webs 22, 23; 24, 25, which also complement each other to form a circle in cross-section and also on the inside carry the internal thread 21.
  • the webs 22, 23; 24, 25 welded together, for example by means of laser welding or electron beam welding.
  • the web 14 has an L-shaped flag 26, the vertical extending to the plane of the web 14 and in to the legs 15 and 16 opposite leg 27 projecting a T-shaped extension 28 owns.
  • the clamping piece 13 is inserted, which one in Cross-section rectangular, the contour adapted section 29, with a lower and upper side level 30, 31, a web 32 and a web 33, the web 33 is surmounted by a tab 34 which lies in the extension of the side wall 30 and in the assembled state for connecting inner conductors within the installation switching device, that holds the clamp serves.
  • the web 33 are on both sides, the longitudinal edge the side wall 30 with the tab 34 protruding, stops 35, 36 formed.
  • the clamping piece 13 according to FIG. 1 can be manufactured in that an elongated Copper tape with the two flags 35 and 36 at one end by rolling up to it rectangular cross section is formed. With the web 32 first, the clamping piece in pushed the area between the two leg sections 17 and 18. The clamping piece 13 can also between up in the region of the thread 21 the two sections 19 and 20 are pushed up.
  • the clamp is installed in an installation device 40, see Fig. 2, and the clamping screw is through an opening 41 on the front and the clamp itself two openings 42 and 43 accessible on the side wall, being through the opening 42 a connecting conductor and through the opening 43, which lies in a slot 44, a connecting lug a busbar can be inserted.
  • This embodiment is shown in FIG. 3 remove.
  • a cutout 47 and a cutout 48 are shown on the end faces, which together with the cutouts on the other half (not shown) a circuit breaker housing to the recesses 42 and 43 with the Complete slot 44.
  • a terminal 50 is inserted into a terminal receiving space 49 (Without the screw 12 is drawn), the clamping piece 13 with the web 32 can be seen. Likewise, the flag 26 is visible, the one with the T-shaped Section 28 engages in a recess 51 in the housing. If now the clamp body is shifted upwards, then hides the flag with the T-shaped formations 28 the access slot or the access opening 48 or 43 and if the screw is practically screwed onto the upper side wall 31 of the clamping piece, then the screw also hides access through openings 42 and 47 into the interior of the Terminal body 50.
  • the terminal according to the invention now has a terminal body as in Fig. 4 is shown.
  • the clamp body is included as a cylindrical tube piece 60 opposing slots 61 and 62 which extend in the axial direction.
  • the lower edges 64 and 65 of the slots 61 and 62 serve then as a clamp stop, so that a connecting conductor between the connecting terminal and the two edges 64 and 65 can be clamped.
  • the connecting conductor can also be a terminal lug of a busbar.
  • the slots 61 and 62 are designed so that clamping piece 13 are used can, so that thereby two clamping spaces are formed within the two slots 61 and 62 are, as shown in Fig. 1.
  • the slot 43, 44 (Fig. 2) can also be designed so that there is a connecting conductor can be connected. There is also the option of opening 42 so that a terminal lug of a busbar can be used can. This means that the installation device can also be used can be used in an existing installation should.
  • a connecting conductor is inserted between the clamping screw 12 and the clamping piece 29 should be, then the connecting conductor would turn with the Turn screw 12; This can be prevented by changing the clamping screw 12 facing side plane 31 is provided with a V-shape 31a, the V-bottom in The direction of insertion of the connecting conductor runs. Possibly. such a V-shape can also be provided at the lower side level 30.
  • transverse beads could also be provided be that cause an anti-twist protection.

Landscapes

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

Claims (6)

  1. Borne de connexion pour un disjoncteur d'installation électrique, comprenant un corps de borne et une vis de serrage pour connecter un conducteur et/ou une patte de connexion d'une barre d'alimentation, caractérisée en ce que le corps de borne a une forme de cylindre (60) qui présente, à une extrémité, un filetage intérieur destiné à recevoir la vis de serrage (12) et des fentes (61, 62) axiales disposées sur des génératrices en vis-à-vis, dont la longueur est inférieure à la longueur du corps de borne (60) et à travers lesquelles la patte de connexion de la barre d'alimentation et/ou le conducteur peuvent être insérés dans la borne de connexion, en ce que la vis de serrage (12) est une vis sans tête qui peut être vissée entièrement dans le corps de borne (60) et en ce qu'une pièce de serrage (13) est montée dans le corps de borne, dans la région d'extrémité des fentes (61, 62) éloignée de la vis de serrage (12), laquelle pièce de serrage délimite deux chambres de serrage de telle sorte que le conducteur et/ou la patte de connexion peut être introduit et serré dans chacune des chambres de serrage.
  2. Borne de connexion selon la revendication 1, caractérisée en ce que la pièce de serrage (13), au moins au niveau de la surface de serrage tournée vers la vis de serrage, est pliée en V ou en U ou présente des moulures, l'arête (31a) du fond ou la ligne du fond, voire les moulures s'étendant dans la direction d'introduction du conducteur et formant ainsi une gouttière dans laquelle le conducteur est guidé dans risque de tourner.
  3. Borne de connexion selon une des revendications 1 et 2, caractérisée en ce que la pièce de serrage (13) est pliée à angle droit et présente une patte allongée (34) qui pénètre dans une ouverture de l'appareil d'installation, de telle sorte qu'un conducteur intérieur dudit appareil d'installation puisse y être connecté.
  4. Borne de connexion selon une des revendications précédentes, caractérisée en ce qu'une pièce de pression est associée à la vis de serrage.
  5. Borne de connexion selon une des revendications précédentes, caractérisée en ce qu'une extrémité de conducteur et/ou une patte de connexion d'une barre d'alimentation peut/peuvent être serrée/s entre l'extrémité de la vis de serrage (12) et la pièce de serrage (13) ou entre la pièce de serrage (13) et la partie formant âme (14).
  6. Borne intégrée dans un appareil d'installation, de préférence dans un disjoncteur de puissance, selon une des revendications précédentes, caractérisée en ce que, vu depuis la face frontale de 'l'appareil d'installation, un conducteur peut être serré entre la vis de serrage (12) et la pièce de serrage (13) et une patte de connexion d'une barre d'alimentation peut être serrée entre la pièce de serrage (13) et la partie formant âme (14).
EP97108102A 1996-05-25 1997-05-20 Dispositif d'installation électrique et borne de connexion pour le dispositif Expired - Lifetime EP0809325B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19621194 1996-05-25
DE19621194A DE19621194A1 (de) 1996-05-25 1996-05-25 Elektrisches Installationsgerät und Anschlußklemme für das Installationsgerät

Publications (2)

Publication Number Publication Date
EP0809325A1 EP0809325A1 (fr) 1997-11-26
EP0809325B1 true EP0809325B1 (fr) 2001-11-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108102A Expired - Lifetime EP0809325B1 (fr) 1996-05-25 1997-05-20 Dispositif d'installation électrique et borne de connexion pour le dispositif

Country Status (2)

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EP (1) EP0809325B1 (fr)
DE (2) DE19621194A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916740A1 (fr) 2006-10-28 2008-04-30 ABB PATENT GmbH Commutateur d'installation et borne par serrage pour un commutateur d'installation
EP1916741A1 (fr) 2006-10-28 2008-04-30 ABB PATENT GmbH Dispositif d' interruption et borne de serrage associée

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905443A1 (de) * 1999-02-10 2000-08-17 Abb Patent Gmbh Anschlußklemme für ein elektrisches Installationsgerät
DE19938883A1 (de) * 1999-08-17 2001-04-19 Langmatz Lic Gmbh Schraubklemme für elektrische Kabel
DE19962289A1 (de) * 1999-12-23 2001-06-28 Abb Patent Gmbh Anschlussklemmenanordnung für ein elektrisches Installationsgerät
ITMI20012324A1 (it) * 2001-11-06 2003-05-06 Abb Service Srl Morsetto per una apparecchiatura modulare di bassa tensione
DE102005055598A1 (de) * 2005-11-19 2007-05-31 Phoenix Contact Gmbh & Co. Kg Schraubklemme und Reihenklemme

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526437A (en) * 1983-03-17 1985-07-02 Erico Products, Inc. Electrical bracket
IT1203858B (it) * 1987-04-03 1989-02-23 Eleco Italiana Srl Giunzione elettrica di derivazione
DE4013225B4 (de) * 1990-04-26 2004-02-19 Abb Patent Gmbh Schraubanschlußklemme
US5107396A (en) * 1991-06-03 1992-04-21 General Electric Company Circuit breaker combined terminal lug and connector
DE9406108U1 (de) * 1994-04-13 1994-06-16 Kloeckner Moeller Gmbh Rahmenklemme für elektrische Geräte
FR2724062B1 (fr) * 1994-08-26 1996-11-15 Soule Sa Connecteur pour raccorder un cable electrique rigide basse tension a un appareil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1916740A1 (fr) 2006-10-28 2008-04-30 ABB PATENT GmbH Commutateur d'installation et borne par serrage pour un commutateur d'installation
EP1916741A1 (fr) 2006-10-28 2008-04-30 ABB PATENT GmbH Dispositif d' interruption et borne de serrage associée

Also Published As

Publication number Publication date
EP0809325A1 (fr) 1997-11-26
DE19621194A1 (de) 1997-11-27
DE59705237D1 (de) 2001-12-13

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