EP1659604B1 - Appareil de commutation pour une installation électrique - Google Patents

Appareil de commutation pour une installation électrique Download PDF

Info

Publication number
EP1659604B1
EP1659604B1 EP05024241A EP05024241A EP1659604B1 EP 1659604 B1 EP1659604 B1 EP 1659604B1 EP 05024241 A EP05024241 A EP 05024241A EP 05024241 A EP05024241 A EP 05024241A EP 1659604 B1 EP1659604 B1 EP 1659604B1
Authority
EP
European Patent Office
Prior art keywords
latching
electromagnetic
lever
lug
switching device
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
EP05024241A
Other languages
German (de)
English (en)
Other versions
EP1659604A3 (fr
EP1659604A2 (fr
Inventor
Ralf Dipl.-Ing. Weber
Jürgen Christmann
Klaus-Peter Dipl.-Ing. Eppe
Peter Dipl.-Ing. Pfirrmann
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 AG Germany
Original Assignee
ABB AG Germany
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 AG Germany filed Critical ABB AG Germany
Publication of EP1659604A2 publication Critical patent/EP1659604A2/fr
Publication of EP1659604A3 publication Critical patent/EP1659604A3/fr
Application granted granted Critical
Publication of EP1659604B1 publication Critical patent/EP1659604B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H2071/0292—Housing or frames containing grooves or slots for guiding movable parts

Definitions

  • the invention relates to an installation switching device according to the preamble of claim 1.
  • Such service switching devices are for example circuit breaker, residual current circuit breaker or motor protection switch, with which a short-circuit current, an overcurrent or a fault current, a shutdown is effected.
  • a circuit breaker which is to be considered here by way of example preferred, has a contact point consisting of a fixed and a so-called movable contact piece, which can be manually closed or manually and automatically opened.
  • the movable contact piece is usually attached to a rotatable about a stationary axis contact lever at one end, at the other end of which a toggle linkage connects, which in turn is hingedly connected to the switch knob.
  • the opening of the contact point is effected once by operating the switch knob, and on the other hand, a thermal release, with which an overcurrent, and an electromagnetic release, with which a short-circuit current can be switched off, provided.
  • a thermal trigger a strip of a bimetallic or a shape memory alloy can be used become.
  • the electromagnetic trigger usually comprises a yoke, a magnetic core, a magnet armature and a coil; in the event of a short circuit, the armature is attracted to the coil and actuates, as shown below, the contact lever with the movable contact piece.
  • the arrangement of the switching mechanism between the two boards has the advantage that the switch lock can be pre-assembled with the boards and the contact lever as well as with the switch between the two boards rotatably fixed switching knob. On the other hand, some assembly steps are required to connect the individual parts and the boards together.
  • Verklinkungsstelle is provided with a nose and a return, so that when unlatching certain frictional forces must be applied to the sliding movement of the nose against the return.
  • a simplification of such a switching mechanism can be effected in that a toggle mechanism is provided between the contact lever and the switch knob, which is formed from two mutually pivotable parts, which occupy a first stable position in the on state together with the switch knob and the movable contact lever, the the trigger is spent on a dead center position in a second stable position, wherein in the second stable position, the contact lever and thus the movable contact piece is in the open position.
  • a derailleur for an electrical service switching device which has a transmission that passes from its first stable position via a dead center in a second stable position, wherein on the handle a leg of a strap is hinged, the other leg is pivotally connected to a tab , which hinged at the other with the contact lever.
  • the release lever acts on the leg connected to the strap of the U-shaped bracket.
  • the object of the invention is to provide an installation device of the type mentioned, which is further simplified.
  • a leg of different lays exhibiting U-shaped bracket with its shorter leg is pivotally connected to the switch knob; the longer leg is hingedly connected to a tab and slides with its free end portion on a stationary housing portion and is guided, and the tab, the release lever and the longer leg with the housing portion form the Verklinkungsstelle.
  • the release lever is rotatably mounted on the Heidelbergknebelfitachse and constantly acted upon by means of a spring arrangement in the direction Verklinkungswolf.
  • the invention can go so that the slider forms the trigger part and thus is part of the Verklinkungsstelle.
  • a further advantageous embodiment of the invention can go to the fact that on the hinged to the contact lever tab a recess on the front side facing away from the longitudinal edge is provided, in which engages the longer leg of the bracket and is held therein in Verklinkungswolf.
  • a pin may be provided on the trigger member, which cooperates with a projection on the tab, which is arranged at the hinge point of the tab on the contact lever opposite the free end on the other side of the recess.
  • the invention will be explained below with reference to a circuit breaker. Of course, the invention can also be used on a fault current or on a motor protection switch.
  • the Fig. 1 shows a partial perspective view of a circuit breaker 10, the housing has a first housing shell part 11 which is set with a second housing shell part (not shown) together to form a single closed housing.
  • the circuit breaker 10 has some components that are not relevant here, namely the components of electromagnetic release and thermal release and the like, as well as terminals, arc extinguishing chamber and other parts are not shown in detail, since they are not relevant to the invention.
  • the housing shell part 11 has, as well as the entire housing, a front front side 12 in which an opening 13 is located, from which the switching handle 14 of a switch knob 15 protrudes.
  • the switch knob 15 is pivotable about an axis 16.
  • a projection 17 is formed, which has an eye-shaped opening 18, in which a leg 19 of a U-shaped bracket 20 is inserted, so that the U-shaped bracket 20 can rotate in the opening 18 ,
  • the bracket 20 is formed opposite the leg 19 extended; the free end of this other leg 21 projects approximately to the inner surface 22 of the housing shell part 11 and acts there with a stationary inclined surface 23 together so that the free end 21 a of the leg 21 can move on the inclined surface 23 and slide on it or on you are guided.
  • the circuit breaker 10 further has a pivotable about an axis 23 contact lever 24, which is designed as a double arm; on the front side remote arm 25, a movable contact piece 26 is formed, which forms the contact point 28 of the circuit breaker with a fixed contact piece 27.
  • a tab 30 is hinged. While the contact lever 24 extends approximately perpendicular to the front side 12, the tab 30 extends approximately parallel to the front side and forms an acute angle with her, which is open to the axis 16 out.
  • the tab 30 has, as in the Fig. 4 is shown, on its frontally located longitudinal edge an approximately semicircular recess 31 whose dimensions are adapted to the leg 21; in the switched-on state, ie in the state according to Fig. 1 , the leg is 21 full in the recess 31st
  • a release lever 32 is further rotatably mounted, which has approximately radially an L-shaped Anformung 33, one leg 34 approximately perpendicular to the front side 12 and the other leg 35 is approximately perpendicular thereto at an angle to the front side 12 aligned , which is open towards the contact lever as an acute angle.
  • a pin 36 is formed perpendicular thereto against which in the on state, a projection 37 is located on the tab, which projection 37 formed on the recess 31 opposite end of the tab 30 is. This projection extends at an obtuse angle with respect to the longitudinal direction of the tab 30, which is open to the contact point.
  • the inclined surface extends at an acute angle to the front side, wherein the contact lever off-side end of the inclined surface is located closer to the front surface than the contact lever near end; the web of the bracket 20 forms with the connecting line V of the central axis of the opening 18 and the axis of rotation of the pivot lever 14 at an obtuse angle, the tip of this angle is directed towards the contact lever or on the side of the contact lever, based on the switch knob 14 and the bracket 20.
  • the free end of the leg 35 with the pin 36 jumps to the contact lever, d. H. towards the contact lever, in front. This pin covers the projection, so that the projection 37 comes to rest against the pin 36, in the on state.
  • the latch consists of the assignment of the leg 21 to the inclined surface 23 and the recess 31, insofar as the inclined surface 23 forms the abutment for the leg 21, see also Fig. 3 ,
  • the trigger lever 32 is pivoted counterclockwise arrow direction G about the axis 16, whereby the pin 36 abuts against the projection 37 and this projection 37 pushes away, so that the tab 30 also in a clockwise direction pivoted about its axis 30 a, with which it is articulated on the contact lever 24.
  • the leg 21 can move freely on the inclined surface 23 and releases the tab 30, so that the tab 30 can move in the direction of the arrow P in the area of the axis 16 and the contact lever can pivot;
  • the switching handle also pivots in the direction of arrow G and thus reaches the switch-off position, see Fig. 2 .
  • the leg 21 of the bracket is returned to the recess 31 on the tab back, with the inner surface of the arm 35 is applied against the leg 21 and so holds the leg within the recess 31, as shown Fig. 2 refer to.
  • this inside of the arm 35 has a suitable contour.
  • the Fig. 6 shows the return to the latch. If the handle has moved back due to the action of the return spring, the tab is also acted upon by the release lever of the return spring, the release lever presses the tab back into its closed position on the projection.
  • Fig. 7 shows a further embodiment of the invention.
  • Contact lever, tab and handle are the same.
  • a slide corresponding to the slider 40 and actuated by the magnetic and thermal release; on the slide a pin 51 is formed, which corresponds to the pin 36.

Landscapes

  • Breakers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Claims (5)

  1. Commutateur d'installation (10) comprenant un déclencheur électromagnétique et/ou thermique, comprenant un verrou de commutation qui peut être actionné par le déclencheur électromagnétique et thermique, lequel présente un point d'encliquetage qui, dans le cas d'un courant de défaut (courant de court-circuit ou surintensité), est désencliqueté par le déclencheur électromagnétique et thermique par le biais d'un levier de déclenchement (32), et comprenant un levier de contact mobile (24) qui est accouplé avec le verrou de commutation et qui, lorsque le point d'encliquetage est désencliqueté, est amené durablement en position ouverte, et comprenant une manette de commutation (15) pour actionner le verrou de commutation, un étrier en forme de U (20) présentant des branches de différentes longueurs (19, 21) étant relié de manière articulée à la manette de commutation (15) par sa branche la plus courte et la branche la plus longue (21) pouvant être bloquée à une éclisse (30), caractérisé en ce que l'étrier en forme de U (20) est guidé par sa zone d'extrémité libre (21a) sur une section fixe du boîtier (23) et coulisse sur celle-ci, et que l'éclisse (30) avec un creux (31) ainsi que la branche la plus longue (21) de l'étrier en forme de U (20) forment avec la section fixe du boîtier (23) le point d'encliquetage.
  2. Commutateur d'installation (10) selon la revendication 1, caractérisé en ce que le levier de déclenchement (32) est monté de manière pivotante sur l'axe de la manette de commutation (16) et peut être contraint durablement en direction de la position d'encliquetage au moyen d'un arrangement de ressort.
  3. Commutateur d'installation (10) comprenant un curseur (40) agissant sur le point d'encliquetage, lequel est déplacé par le déclencheur électromagnétique et thermique en cas de courant de court-circuit ou de surintensité, selon la revendication 1, caractérisé en ce que le curseur (40) forme la pièce de déclenchement et fait ainsi partie du point d'encliquetage.
  4. Commutateur d'installation (10) selon l'une des revendications précédentes, caractérisé en ce que sur le bord long à l'opposé du côté avant sur l'éclisse (30) qui est reliée de manière articulée avec le levier de contact (24) est prévu un creux (31) dans lequel vient en prise la branche la plus longue (21) de l'étrier (20) et y est maintenue dans la position d'encliquetage.
  5. Commutateur d'installation (10) selon l'une des revendications précédentes, caractérisé en ce que sur le levier de déclenchement (32) est prévu un tenon (36), lequel interagit avec une partie en saillie sur l'éclisse (30), laquelle est disposée au niveau du point d'articulation de l'éclisse (30) sur l'extrémité libre qui se trouve à l'opposé du levier de contact (24) de l'autre côté du creux.
EP05024241A 2004-11-18 2005-11-08 Appareil de commutation pour une installation électrique Not-in-force EP1659604B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004055565A DE102004055565A1 (de) 2004-11-18 2004-11-18 Installationsschaltgerät

Publications (3)

Publication Number Publication Date
EP1659604A2 EP1659604A2 (fr) 2006-05-24
EP1659604A3 EP1659604A3 (fr) 2007-07-11
EP1659604B1 true EP1659604B1 (fr) 2010-10-27

Family

ID=35429521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05024241A Not-in-force EP1659604B1 (fr) 2004-11-18 2005-11-08 Appareil de commutation pour une installation électrique

Country Status (3)

Country Link
EP (1) EP1659604B1 (fr)
AT (1) ATE486359T1 (fr)
DE (2) DE102004055565A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108573837B (zh) * 2018-07-26 2024-03-19 厦门大恒科技有限公司 一种绕线式记忆合金重合闸

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22218E (en) * 1937-06-18 1942-11-03 Circuit breaker
JPH0119315Y2 (fr) * 1984-09-19 1989-06-05
DE8701048U1 (de) * 1987-01-22 1987-03-19 Siemens AG, 1000 Berlin und 8000 München Schaltschloß für einen Leistungsschalter
DE4116454A1 (de) * 1991-05-18 1992-11-19 Licentia Gmbh Mechanismus fuer einen selbstschalter
DE19735408B4 (de) * 1997-08-14 2008-04-10 Siemens Ag Schaltmechanismus für einen Schutzschalter
DE10133879B4 (de) * 2001-07-12 2004-07-08 Siemens Ag Schaltgerät mit einem Schaltschloss
DE102004012919A1 (de) * 2004-03-17 2005-10-20 Abb Patent Gmbh Schaltwerk für ein elektrisches Installationsschaltgerät

Also Published As

Publication number Publication date
ATE486359T1 (de) 2010-11-15
DE102004055565A1 (de) 2006-05-24
EP1659604A3 (fr) 2007-07-11
DE502005010440D1 (de) 2010-12-09
EP1659604A2 (fr) 2006-05-24

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