EP0455189B1 - Trennklemme - Google Patents

Trennklemme Download PDF

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Publication number
EP0455189B1
EP0455189B1 EP91106905A EP91106905A EP0455189B1 EP 0455189 B1 EP0455189 B1 EP 0455189B1 EP 91106905 A EP91106905 A EP 91106905A EP 91106905 A EP91106905 A EP 91106905A EP 0455189 B1 EP0455189 B1 EP 0455189B1
Authority
EP
European Patent Office
Prior art keywords
clamp
break
strap
clamping element
terminal
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
EP91106905A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0455189A3 (en
EP0455189A2 (de
Inventor
Gerd Conrad
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.)
CONRAD, GERD
HOELSCHER, HEINRICH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0455189A2 publication Critical patent/EP0455189A2/de
Publication of EP0455189A3 publication Critical patent/EP0455189A3/de
Application granted granted Critical
Publication of EP0455189B1 publication Critical patent/EP0455189B1/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
    • 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
    • H01R9/2625—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component
    • H01R9/2633—Clip-on terminal blocks for side-by-side rail- or strip-mounting with built-in electrical component with built-in switch

Definitions

  • the invention relates to a disconnect terminal with a busbar and a disconnect slide, which has a box-shaped clamp with a clamping screw and a retaining piece comprising the clamping screw, which is guided with tongue and groove on the terminal housing.
  • a disconnect terminal block with the type designation NT 2.5 is already known, which has the features of the preamble of patent claim 1. It is perceived as a disadvantage that the displaceability of the isolating slide in the loosened state of the clamping screw is unsatisfactory, since the separating slide is slightly jammed during a displacement which is carried out by a screwdriver after loosening the clamping screw, although here by a small one on the head of the clamping screw attached and resting on the clamp, which is guided with tongue and groove on the terminal housing, the purpose is to prevent jamming.
  • EP-B-0081088 describes a disconnect terminal which has a disconnect slide which, although it uses two clamping jaws which clamp the busbar, and in which attempts have been made to improve the displaceability of the opened slide switch on the conductor rail.
  • a longer guide part resting on the upper clamping jaw is provided, which is guided both on the terminal housing and with an angle on the conductor rail.
  • the separating slide forms a relatively unstable structure when the clamping jaws are released, which does not always allow easy displacement.
  • This disconnect terminal is also relatively expensive to implement because of the two differently formed copper alloy clamping jaws, the slotted and cranked busbar and a particularly long clamping screw.
  • the object of the invention is therefore to create a more cost-effective solution for a disconnect terminal.
  • the object is achieved by the features mentioned in the characterizing part of patent claim 1.
  • the features listed in the subclaim for the further configuration also achieve, among other things, easier displacement of the separating slide.
  • the use of the steel clamping bracket is advantageous, which allows the application of a larger contact pressure of the clamping piece on the busbar of the disconnect terminal and the additional busbar by the design of its thread for the short clamping screw.
  • the flat shape of the busbar which is a simple stamped part, is also favorable.
  • the disconnect terminal (Fig. 1) consists essentially of an isolating terminal housing 1 made of insulating material with different latching legs for attachment to different mounting rails, a busbar 6 with clamping body 8, a disconnect slide 2 with a box-shaped clamping bracket 4 made of steel, a clamping piece 5 made of a copper alloy, a clamping screw 7 made of steel and a holding piece 3 made of insulating material.
  • the isolating slide 2 allows a manually separable electrical connection to be made between the clamping body 8 for connecting a cable and a busbar 9 not belonging to the isolating terminal.
  • the holding piece 3 ( Figure 3) is U-shaped with two rigid legs 35 and 36. On the inside of one leg 35 and on a short elastic leg 37 arranged between the rigid legs 35 and 36, a cam 31 is arranged, with which the holding piece 3 is placed in the area of the clamping screw 7 on the clamping bracket 4 and firmly connected to it (Fig.2).
  • the holding piece 3 has in the area between the legs 35 and 37 a bore which is aligned with a threaded bore in the head of the clamping bracket 4 and serves to guide the clamping screw 7.
  • the inner surfaces 33 and 34 of the rigid legs 35 and 36 of the holding piece 3 encompass the upper part of the clamping piece 5.
  • the holding piece 3 (Fig.2 and Fig.1.1) has a groove 32 on its rear wall, into which a corresponding strip 10 on the rear wall 11 of the terminal housing 1 fits.
  • the strip 10 runs parallel to the busbar 6 and ensures an undisturbed displacement of the holding piece 3 with the holding bracket 4 firmly connected to it in both directions of the double arrow 12 when the clamping screw 7 is loosened.
  • the box-shaped laterally open clamping bracket 4 (Fig. 4.1) has a T-shaped shape in the front view through the diametrically protruding clamping surfaces 41 and 42.
  • the height of the clamping surfaces 41 and 42 above the bottom part 45 is selected differently in the illustrated embodiment.
  • the height of the clamping surfaces 41 and 42 can, however, also be of the same design if only a single cross-sectional dimension and arrangement of the additional busbar 9 (FIG. 2) come into question.
  • the inside of the side walls 46 and 47 have a reinforcement or configuration 43, as a result of which the clear width between the side walls 46 and 47 is reduced.
  • the clamping bracket On its upper narrow side, the clamping bracket has a thread 48 which has an enlarged screw-in length through a nozzle.
  • the reinforcements 43 serve to guide the clamping piece 5 arranged in the clamping bracket 4.
  • the massive, flat clamping piece 5 (Fig. 5 and Fig. 5.1) consists of a copper alloy and can be produced by four notches from a rectangular plate. Two notches 55 and 56 are located in the long sides of the rectangle symmetrically to the central axis "Y" running parallel to the narrow sides. They are adapted in their width and depth to the reinforcements 43 of the clamp 4. The thickness of the clamping piece 5 is dimensioned such that it can be moved in the box-shaped clamping bracket with slight play by the movement of the clamping screw 7.
  • the other two notches are located in two diagonally opposite corners of the rectangle mentioned, of which one notch is square with a side length selected corresponds to half the length of the narrow sides, so that the one edge, which is referred to as the clamping surface 52, is arranged in the X-axis (FIG. 5).
  • the second of the notches arranged diagonally opposite one another is somewhat wider and provides a different clamping surface 51. All corner edges of the clamping piece 5 and its notches are rounded off in order to optimally increase the sliding ability when the separating slide 2 is displaced in the direction of the double arrow 12 (FIG. 2) shape.
  • the possibility is given to enable the disconnect terminal to be adapted to busbars 9 of different strengths, by inserting the clamping piece 5 (FIG. 5) into the box-shaped clamp 4 rotated by 180 °. If use on busbars 9 of different strengths is not required, the clamping arms 57 and 58 can also be arranged with the same width.
  • the busbar 6 (FIG. 2) of the disconnect terminal establishes the electrical connection between the further external busbar 9 and the clamping body 8 for cables to be connected when the disconnect slide 2 is extended and clamped to the external busbar 9.
  • the massive busbar 6 (Fig. 6 and Fig. 6.1) is flat and made of a prismatic copper tape.
  • the width of the busbar 6 corresponds to the material thickness of the clamping piece 5 and lies flat within the box-shaped clamping bracket 4 on the bottom part 45 thereof.
  • the central region 61 of the busbar 6 the latter is formed with a width which corresponds to the outer dimension of the clamping bracket 4.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP91106905A 1990-04-30 1991-04-27 Trennklemme Expired - Lifetime EP0455189B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013818 1990-04-30
DE4013818A DE4013818A1 (de) 1990-04-30 1990-04-30 Trennklemme

Publications (3)

Publication Number Publication Date
EP0455189A2 EP0455189A2 (de) 1991-11-06
EP0455189A3 EP0455189A3 (en) 1992-10-07
EP0455189B1 true EP0455189B1 (de) 1995-06-07

Family

ID=6405413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106905A Expired - Lifetime EP0455189B1 (de) 1990-04-30 1991-04-27 Trennklemme

Country Status (3)

Country Link
EP (1) EP0455189B1 (enrdf_load_stackoverflow)
DE (2) DE4013818A1 (enrdf_load_stackoverflow)
ES (1) ES2075259T3 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD353364S (en) 1993-02-26 1994-12-13 Cooper Industries, Inc. DIN rail mounting disconnect terminal block
USD353365S (en) 1993-03-03 1994-12-13 Cooper Industries, Inc. DIN rail mounting disconnect terminal block
DE19531115B4 (de) * 1995-08-24 2005-11-24 Abb Schweiz Ag Anschlußklemme
FR2913532B1 (fr) * 2007-03-06 2009-04-17 Abb France Appareil basse tension destine a etre relie a une barre collectrice
LU93316B1 (de) * 2016-11-21 2018-05-25 Phoenix Contact Gmbh & Co Kg Intellectual Property Licenses & Standards Strombalken für eine Anschlussklemme und Anschlussklemme mit einem Strombalken

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1490185B1 (de) * 1964-06-02 1970-04-30 Phoenix Elek Zitaets Ges H Knu Schaltanlagen-Reihenklemme mit einem Anschluss fuer eine vorbeifuehrende Sammelschiene
DE1765913A1 (de) * 1968-08-06 1971-10-28 Weidmueller Kg C Schaltanlagen-Anreihklemme
DE2342988A1 (de) * 1973-08-25 1975-03-06 Schlegel Georg Fa Reihenklemme mit trenneinrichtung fuer eine sammelschiene
DE3146914C1 (de) * 1981-11-26 1983-01-13 C.A. Weidmüller GmbH & Co, 4930 Detmold Trennklemme
DE3328666C2 (de) * 1983-08-09 1986-08-14 Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg Elektrische Reihenklemme

Also Published As

Publication number Publication date
EP0455189A3 (en) 1992-10-07
ES2075259T3 (es) 1995-10-01
DE59105643D1 (de) 1995-07-13
DE4013818A1 (de) 1991-10-31
DE4013818C2 (enrdf_load_stackoverflow) 1993-07-01
EP0455189A2 (de) 1991-11-06

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