EP0525565B1 - Leiteranschluss für ein- oder mehrpolige Schaltgeraete - Google Patents

Leiteranschluss für ein- oder mehrpolige Schaltgeraete Download PDF

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Publication number
EP0525565B1
EP0525565B1 EP92112343A EP92112343A EP0525565B1 EP 0525565 B1 EP0525565 B1 EP 0525565B1 EP 92112343 A EP92112343 A EP 92112343A EP 92112343 A EP92112343 A EP 92112343A EP 0525565 B1 EP0525565 B1 EP 0525565B1
Authority
EP
European Patent Office
Prior art keywords
pole
conductor connection
switching devices
clamping
plug nut
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
EP92112343A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0525565A2 (de
EP0525565A3 (en
Inventor
Wolfgang Kremers
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.)
Eaton Industries GmbH
Original Assignee
Kloeckner Moeller 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 Kloeckner Moeller GmbH filed Critical Kloeckner Moeller GmbH
Publication of EP0525565A2 publication Critical patent/EP0525565A2/de
Publication of EP0525565A3 publication Critical patent/EP0525565A3/de
Application granted granted Critical
Publication of EP0525565B1 publication Critical patent/EP0525565B1/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
    • H01R4/30—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 conductor connection for single or multi-pole switching devices, each of the current paths of the switching device having at least one U-shaped clamping frame into which an electrical conductor can be inserted, and each of these clamping frames an insertable screw unit consisting of a clamping screw, a plug nut and a printing plate is assigned.
  • a conductor connection is known from EP 0 334 975, in which a screw unit can be inserted from above into a U-shaped bracket, with projections being provided on a nut piece on two opposite sides, which protrusions in receptacles accessible from above in the legs of the U- shaped bracket grab. Furthermore, a frame-like wire protection part is provided for locking the U-shaped bracket in the engagement position.
  • This conductor connection can primarily be used as a single connection or for single-pole switching devices, with each current path being connected individually.
  • the structural design with the frame-like wire protection part is very complex.
  • the conductor can also be inserted into the clamping point which is open from above. However, this is a complex and difficult to handle construction. In particular, the insertion of the nut piece into the U-shaped leg and the clamping of the conductor is time-consuming and involves functional errors.
  • the present invention has for its object to provide a conductor connection that allows the insertion of the conductor from above with a simple structure in addition to the conventional connection technology and ensures a simple and safe insertion of the screw unit, with a terminal cover being provided at the same time.
  • clamping frame is fastened to the switching device and the screw unit which can be inserted into the clamping frame is locked in a holder by means of the plug nut and is inserted into the clamping frame with this holder, the plug nut being insertable into receiving slots in the clamping frame.
  • the clamping frames are fastened to the switching device in accordance with the number of poles, while the screwing units are locked together in a holder and are simultaneously inserted into the respective clamping frames with this holder. This makes it possible that all conductors to be connected to the switching device are already inserted in the clamping frame and are already secured by the screwing units being pushed on at the same time.
  • the cover can advantageously be made of insulating material and thus simultaneously serve as a cover for the conductor connections.
  • a receiving slot is advantageously provided in each of the lateral legs of the clamping frame, into which protrusions arranged laterally on the plug nut of the screw unit engage, which form the counter bearing for the pressure on the conductor to be clamped.
  • the clamping slot in the clamping frame extends in the direction of insertion of the screw unit to about half the depth of the clamping frame, while the projections on the plug nut are designed so that they almost completely fill the receiving slot after insertion. This ensures the necessary strength to securely clamp the conductor and, at the same time, also provides sufficient guidance for the screw unit.
  • This advantage of the embodiment according to the invention is further supported in that the plug nut is recessed on its broad side in such a way that the width dimension of the plug nut in the front section facing the switching device is slightly less than the internal dimension between the legs of the clamping frame, while in the rear section the projections of the plug-in nut which can be pushed into the receiving slots correspond almost to the outer width of the clamping frame.
  • Snap hooks are advantageously arranged in the holder of the screw unit, which grip around the plug nuts and lock them by means of locking lugs. As a result, the screwing unit is held securely and guided into the receiving slots.
  • plug nuts have bevels on the corners facing the switching device and the receiving slots on the side facing away from the switching device.
  • a guide bar is arranged in the holder of the screw units parallel to the central axis of the pressure screw and one in the pressure plate is a cross-sectional contour of this guide bar Recess provided. This prevents the pressure plate from jamming before it is inserted and also when the conductor is clamped.
  • a further insertion aid results if the holder has an upper cover which is extended in the direction of the switching device and which lies on the upper edge of the housing of the switching device and forms a joining guide.
  • the holder 2 is fastened to the switching device 1 by means of fastening screws 19 and the conductor connections can be used in a conventional manner by inserting the conductors to be connected into the clamping frames 10a, 10b, 10c and by means of the screw units 20a , 20b, 20c are clamped.
  • the holder 2 can be pulled off the switching device after loosening the fastening screws 19.
  • the conductors can be conveniently inserted into the clamping frames 10a, 10b, 10c from above.
  • the clamping frames are fastened in the switching device, usually by means of a screw 6 on the busbar 5. After inserting the conductors, as shown in FIG. 6 with a conductor 3, the holder 2, which also contains the screw units 20 for the respective pole tracks, is pushed on, and the conductors can be clamped in place using the clamping screw 4.
  • the screw unit is composed of the pressure plate 22, the plug nut 21 and the clamping screw 4.
  • the screw unit 20 is locked in the holder 2.
  • the plug nut 21 is pushed in the direction of arrow A between the snap hooks 24a and 24b and held by the locking lugs 25.
  • the holder 2 with the locked screw unit 20 is moved in the direction B in such a way that the projections 21c and 21d are guided into the receiving slots 13 of the clamping frame 10.
  • the clamping frame 10 is preferably fastened on the busbar 5 by means of known techniques.
  • An individual representation of a clamping frame 10 and a plug nut 21 is shown in FIGS. 4a and 4b.
  • the front part 21a of the plug nut 21 is dimensioned such that it corresponds to the width dimension between the legs 11a and 11b of the clamping frame 10.
  • the rear part 21b of the plug nut 21 has on the broad side the two projections 21c and 21d which engage in the receiving slots 13 and are supported against the contact surface 13c as an abutment against the pressure on the conductor.
  • the plug nut and the clamping frame can also have insertion bevels 21e or 13a and 13b.
  • the plug nut has a threaded bore 21f for receiving the clamping screw 4.
  • a recess 29 is provided in the pressure piece 22, into which a guide bar 28 engages (FIG. 5).
  • the guide strip 28 runs parallel to the central axis of the clamping screw 4 and holds the pressure piece in a defined position during the screwing process and in the withdrawn position of the screwing unit 20.
  • the pressure plate has a nose that runs in a recessed guide in the cover.
  • the upper cover 2a of the holder 2 is designed above. So that it can be placed on the housing edge 1a of the switching device 1 or a terminal support and the joining movement is performed in a defined manner.
  • This conductor connection described here can also be used without special modifications as a single terminal and for terminal blocks or the like.

Landscapes

  • Patch Boards (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP92112343A 1991-07-20 1992-07-20 Leiteranschluss für ein- oder mehrpolige Schaltgeraete Expired - Lifetime EP0525565B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4124200 1991-07-20
DE4124200A DE4124200A1 (de) 1991-07-20 1991-07-20 Leiteranschluss fuer ein- oder mehrpolige schaltgeraete

Publications (3)

Publication Number Publication Date
EP0525565A2 EP0525565A2 (de) 1993-02-03
EP0525565A3 EP0525565A3 (en) 1993-04-07
EP0525565B1 true EP0525565B1 (de) 1996-01-03

Family

ID=6436700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92112343A Expired - Lifetime EP0525565B1 (de) 1991-07-20 1992-07-20 Leiteranschluss für ein- oder mehrpolige Schaltgeraete

Country Status (3)

Country Link
EP (1) EP0525565B1 (enrdf_load_stackoverflow)
DE (2) DE4124200A1 (enrdf_load_stackoverflow)
ES (1) ES2083632T3 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720045A1 (de) * 1997-05-14 1998-11-19 Felten & Guilleaume Energie Anschlußklemme zum Anschluß eines elektrischen Leiters
DE19833150C1 (de) * 1998-07-23 1999-10-14 Moeller Gmbh Anschlußklemme
DE19845630C1 (de) * 1998-10-05 2000-03-30 Moeller Gmbh Anschlußklemme
DE29916001U1 (de) * 1999-09-13 2000-01-05 Abb Patent Gmbh, 68309 Mannheim Installationsschalter
DE29918340U1 (de) 1999-10-18 2000-01-20 Abb Patent Gmbh, 68309 Mannheim Elektrischer Installationsschalter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200407B (de) * 1958-09-26 1965-09-09 Siemens Ag Klemme fuer elektrische Leiter
US3534195A (en) * 1969-01-27 1970-10-13 Gen Electric Circuit breaker with novel terminal strap
DE2161882A1 (de) * 1971-12-14 1973-06-20 Phoenix Elekt Elektrische verbindungsklemme, insbesondere hochstrom-reihenklemme
FR2472287A1 (fr) * 1979-12-20 1981-06-26 Alsthom Cgee Borne de raccordement electrique a serre-cable
DE3042029A1 (de) * 1980-11-07 1982-06-16 Brown, Boveri & Cie Ag, 6800 Mannheim Abdeckvorrichtung zur sicherung von anschlussklemmen von elektrischen installationsgeraeten
DD201075A1 (de) * 1981-11-20 1983-06-29 Henry Baumruker Offene rahmenklemme fuer elektrische schaltgeraete
DK289085A (da) * 1985-06-26 1986-12-27 Knudsen Nordisk Elect Klemelement
DE8717372U1 (de) * 1987-06-10 1988-10-27 Siemens AG, 1000 Berlin und 8000 München Gehäuse mit Anschlußklemmen
DE3871135D1 (de) * 1988-03-26 1992-06-17 Weidmueller C A Gmbh Co Leiteranschluss.

Also Published As

Publication number Publication date
DE4124200A1 (de) 1993-01-21
EP0525565A2 (de) 1993-02-03
ES2083632T3 (es) 1996-04-16
EP0525565A3 (en) 1993-04-07
DE59204893D1 (de) 1996-02-15
DE4124200C2 (enrdf_load_stackoverflow) 1993-07-29

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