EP0144799B1 - Disjoncteur - Google Patents

Disjoncteur Download PDF

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Publication number
EP0144799B1
EP0144799B1 EP84113549A EP84113549A EP0144799B1 EP 0144799 B1 EP0144799 B1 EP 0144799B1 EP 84113549 A EP84113549 A EP 84113549A EP 84113549 A EP84113549 A EP 84113549A EP 0144799 B1 EP0144799 B1 EP 0144799B1
Authority
EP
European Patent Office
Prior art keywords
lever
switch
leg
breaker
automatic cut
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
Application number
EP84113549A
Other languages
German (de)
English (en)
Other versions
EP0144799A2 (fr
EP0144799A3 (en
Inventor
Rolf Ing. Grad. Goehle
Erhard Ing. Grad. Runtsch
Volker Schmitt
Walter Ing. Grad. Velten
Klaus Dipl.-Ing. Greefe
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie 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 Brown Boveri und Cie AG Germany filed Critical Brown Boveri und Cie AG Germany
Priority to AT84113549T priority Critical patent/ATE27205T1/de
Publication of EP0144799A2 publication Critical patent/EP0144799A2/fr
Publication of EP0144799A3 publication Critical patent/EP0144799A3/de
Application granted granted Critical
Publication of EP0144799B1 publication Critical patent/EP0144799B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the invention relates to a circuit breaker according to the preamble of claim 1.
  • Such miniature circuit breakers are used in a wide variety, and their switching and operating principle has remained essentially unchanged to this day.
  • switchgear there are two tasks that are closely linked: You try to reduce the size without sacrificing performance, or you keep the size or reduce it slightly and try the switching capacity to enlarge.
  • a circuit breaker of the type mentioned above is e.g. become known from DE-A-3 226 820. Its intermediate lever runs approximately perpendicular to the direction of movement of the magnet armature, which is why the latch lever and thus the elongated hole also runs transversely to the direction of movement of the magnet armature.
  • the low construction then means that parts of the key switch and the thermal release come to rest in the area of the contact point.
  • the object of the invention is to provide a circuit breaker of the type mentioned, in which the overall height has not increased despite increased performance and in which a spatial separation of important switch components and the thermal release from the contact point is made possible.
  • the course of the intermediate lever that drives the contact lever is important for the low overall height; in the switch of DE-A-3 226 820 it runs perpendicular to it in front of the magnet armature, whereas in the switch according to the invention it lies parallel to the front front wall above the magnetic trigger.
  • the movement of all the parts forming the switching lock and the associated necessary components are essentially parallel to the front front wall and also parallel to the longitudinal axis of the magnet yoke or direction of movement of the magnet armature.
  • Those parts that run transversely to it are the contact lever lying in front of the magnetic yoke perpendicular to its central axis and the thermobimetal also running approximately transversely to the central axis of the magnetic release on the opposite side of the magnetic release.
  • the magnetic yoke is surrounded on one side by the contact lever, above it by the key switch and on the other side by the bimetal; all of these parts run in a U-shape around the magnetic yoke and the arc quenching plate package.
  • the configuration according to the invention it was therefore possible for the first time to build the arc-quenching plate package as large as possible and the switch lock as small as possible, specifically in a direction transverse to the front front wall.
  • the construction size or height transverse to the front front wall of the housing is decisive, since this size determines the installation dimension of the switch.
  • the arc-quenching plate unit or arc-quenching plate package takes up approximately half the interior space of the housing in the direction perpendicular to the front wall, whereas the key switch requires a height of less than 25% of this clear height of the housing.
  • the switch lock can be prefabricated in its entirety, so that it forms a unit and can be easily inserted into the housing. This is achieved by the configuration according to claim 4.
  • Terminals 11 and 12 are located on the narrow sides of the base in a housing 10, which is of narrow construction and has a base-like shape.
  • the terminal lug 13 belonging to the terminal 12 extends into the interior of the housing 10 into a bend 14 to which a strand 15 is attached is.
  • the other end of the strand 15 is attached to a contact lever 16, which is designed as a double arm lever.
  • a bevel 16a is formed on the double-arm contact lever 16, in which an elongated hole 18 is introduced with its longitudinal extension approximately transversely to the longitudinal extension of the contact lever 16, through which an axis 17 attached to two plates 19 extends and thus guides the contact lever 16.
  • Fig. 1 only the rear board is partially and the front board only to the left of a board holder (see below).
  • the boards 19 are, as indicated by dashed lines in FIG. 1, formed L-shaped in the contour; the longer leg 20 of the board 19 carries, which is not shown, the axis 21 of a movable shift knob 22, whereas the short leg 23 carries the axis 17.
  • the one lower board is bent in an L-shaped manner, with pin projections 24 being provided on the edge of the leg that projects perpendicular to the plane of the drawing, which engage in holes 25 of the other front board and are fixed there by means of deformations 26.
  • the front board is fastened to the rear board, on which the pin projections 24 are formed. Both boards surround the entire switch lock like a fork, the structure of which is explained in more detail below.
  • the contact lever 16 thus has a first arm 27 to which the movable contact piece 28 and the strand 15 are attached; on the other arm 29, an intermediate lever 31 is articulated via a hinge axis 30, the free end of which engages or guides a web 32 of a C-shaped bracket 33, which web 32 is additionally guided in an elongated hole 34 in a ratchet lever 35.
  • the pawl lever 35 is rotatably supported at point 36.
  • the other web of the bracket 33 which is made of wire, passes through a bore 22a in a shape 22b of the switching knob 22.
  • a nose 37 is attached, which engages in a recess (not shown) on a release lever 38 and forms the latching point there with the latter.
  • the trigger lever 38 is also rotatably mounted on the axis 21.
  • a transmission slide 39 runs approximately parallel to the elongated hole 34 and is guided displaceably in its longitudinal direction in a groove 40 in the housing 10.
  • thermal release 41 in the form of a thermal bimetal and a double arm lever (transmission lever) 42, whose function will be explained in more detail below, runs approximately perpendicular to the slide.
  • a magnetic release 43 is arranged below the switch lock, the axis of the magnetic release 43 likewise running parallel to the front wall 10A and to the connecting line of the hinge axes 30, 36, 32 and the elongated hole 34 and the slide 39.
  • the known magnetic trigger has a movable magnet armature 44 and a magnetic core 45, the magnetic core 45 being penetrated by a plunger 46 which ends in a plunger head 47 which, when tightened in the direction of the arrow F, hits the arm 27 of the contact lever 16 and the contact lever 16 opens.
  • the magnet armature 44 continues into a pin 48 with a plate-like extension 49, which cooperates with one leg of the transmission lever 42; this lever 50 is articulated on the yoke 51 of the magnetic release.
  • the yoke 51 is U-shaped, with one leg of the yoke 51 running approximately parallel to the contact lever 16.
  • an extension 53 is formed, which itself is again U-shaped, on the lower web 54 of which a web 55 is angled, to which the thermal release 41 is attached.
  • the extension 53 and the web 55 are Y-shaped.
  • An adjusting screw 56 is arranged between the two legs of the U-shaped extension 53, the end of which is supported on the inner surface of the left leg 57A, whereas the adjusting screw 56 is screwed into the other leg 57.
  • Both legs 57, 57A are at a minimum distance when the adjusting screw 56 is unscrewed.
  • the legs 57, 57A are pressed apart by the adjusting screw 56, and when the adjusting screw 56 is turned, the distance between the two legs 57 and 57A is widened or reduced, so that the thermal release can be adjusted in this way.
  • a strand 58 is attached, the other end of which is attached to a connecting tab 59.
  • arc-quenching plate packet 60 which is delimited by a first arc-guiding rail 61 and an arc-guiding plate 62.
  • the arc light sheet 61 continues to the left in a U-shaped horn 63, the free leg of which carries the fixed contact piece 64.
  • the light arc 62 connects to the terminal lug 13 and is arc-shaped, which improves the arc running.
  • the plunger head 47 of the plunger 46 is moved in the direction of the arrow F via the magnet armature, as a result of which the movable contact lever 16 is brought into the open position.
  • the slide 39 is moved to the right, as a result of which the release on the nose 37 is released and the contact lever is rotated clockwise under the pressure of the spring 65.
  • the bracket 33 is moved to the right via the intermediate lever 31, as a result of which the switching knob 22 rotates counterclockwise into the switched-off position, and the movable contact lever 16 is held in the open position.
  • the key switch has thus opened the contact points permanently.
  • the thermal release 41 responds, for example in the event of an overcurrent, then it bends counterclockwise F in a clockwise direction around its attachment point, as a result of which the slide 39 is moved to the right and the latching point is released with the nose 37. This also opens the switch permanently.
  • the switch lock is connected to the switch toggle 22 and the contact lever 16 and, via the wire 15, also to the left terminal 12 to form a unit which can be pre-assembled and inserted uniformly into the switch housing.
  • FIG. 2 shows that the arrangement of the magnetic release, thermal release and connection terminal 11 also forms a unit that can be built into the housing of an electrical circuit breaker.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Saccharide Compounds (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Glass Compositions (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Burglar Alarm Systems (AREA)
  • Control Of Eletrric Generators (AREA)

Claims (7)

1. Disjoncteur de protection de ligne doté d'un déclencheur électromagnétique (43) avec armature (44), d'un déclencheur thermique (41 d'une pièce de contact fixe (64) et d'une pièce de contact mobile (28), d'un verrou pouvant être déclenché par les déclencheurs thermique (41) et magnétique (43) et possédant un emplacement d'encliquetage formé par un levier de déclenchement (38) et par un levier à cliquet (35) monté pivotant en position fixe et présentant un trou oblong (34) pour le guidage d'un étrier (33), l'armature agissant directement sur la pièce de contact mobile pour l'ouvrier et le verrou maintenant la pièce de contact mobile ouverte, ce disjoncteur étant en outre doté d'une manette de commutation (22), faisant saillie sur la paroi frontale du boîtier, destinée à actionner manuellement le verrou et d'un levier intermédiaire (31) articulé à l'une de ses extrémités au levier de contact (16) et à son autre extrémité à une branche de l'étrier (33), ce levier intermédiaire s'engageant avec cette branche dans le trou oblong (34), l'autre branche de l'étrier (33) étant articulée à la manette de commutation (22), caractérisé en ce que le levier intermédiaire (31), le levier à cliquet (35) et la trou oblong (34) sont guidés dans leur mouvement presque parallèlement à la paroi frontale (10A) et parallèlement aux parois latérales du boîtier (10), et en ce que le levier de déclenchement (38) est monté, conjointement avec la manette de commutation (22), sur un axe fixe (21 ).
2. Disjoncteur de protection de ligne selon la revendication 1, caractérisé en ce que le déclencheur thermique (41) et l'armature (44) sont couplés au levier de déclenchement (38) au moyen d'un coulisseau de transmission (39), en vue de déclencher le verrou, ce coulisseau de transmission étant guidé dans une rainure de guidage (40) sensiblement parallèle à la paroi frontale avant dans le boîtier, et permettant aussi bien la transmission du movement du déclencheur thermique (41) que de l'armature (44) au levier de déclenchement (38).
3. Disjoncteur de protection de ligne selon la revendication 2, caractérisé en ce que sur la culasse du déclencheur magnétique est formé un palier de pivotement (50) pour un levier à deux bras (42) permettant la transmission du mouvement de l'armature (44) au coulisseau de transmission (39).
4. Disjoncteur de protection de ligne selon l'une des revendications précédentes, caractérisé en ce que le levier de contact (16), la manette de commutation (22) et le levier à cliquet (35) sont disposés entre deux platines (19) en forme de L, une aile des platines (19) recevant l'axe (17) du levier de contact et l'autre aile l'axe (21) de la manette de commutation ainsi que l'axe (36) du levier à cliquet.
5. Disjoncteur de protection de ligne selon l'une des revendications précédentes, caractérisé en ce que la culasse présente un prolongement (53) à l'extrémité duquel est fixé le déclencheur thermique (41).
6. Disjoncteur de protection de ligne selon la revendication 5, caractérisé en ce que le prolongement (53) a une forme de Y sur l'âme de laquelle est fixé de déclencheur thermique, et en ce qu'en vue du réglage est prévue entre les deux branches du prolongement (57, 57A) une vis de réglage (56) engagée dans un trou taraudé d'une branche (57) et appliquée sur la face interne de l'autre branche, de façon à permettre, par modification du degré d'ouverture des deux branches et, en conséquence, par modification de la position de l'âme (55) par rapport aux branches, un réglage du déclencheur thermique.
7. Disjoncteur de protection de ligne selon l'une des revendications précédentes, caractérisé en ce que la rampe d'arc (62) supportant la pièce de contact fixe (14) est disposée en arc à grand rayon dans le boîtier, sans point de brisure.
EP84113549A 1983-11-24 1984-11-09 Disjoncteur Expired EP0144799B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113549T ATE27205T1 (de) 1983-11-24 1984-11-09 Leitungsschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3342469 1983-11-24
DE19833342469 DE3342469A1 (de) 1983-11-24 1983-11-24 Elektrischer schalter

Publications (3)

Publication Number Publication Date
EP0144799A2 EP0144799A2 (fr) 1985-06-19
EP0144799A3 EP0144799A3 (en) 1985-07-10
EP0144799B1 true EP0144799B1 (fr) 1987-05-13

Family

ID=6215132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113549A Expired EP0144799B1 (fr) 1983-11-24 1984-11-09 Disjoncteur

Country Status (4)

Country Link
EP (1) EP0144799B1 (fr)
JP (1) JPS60131728A (fr)
AT (1) ATE27205T1 (fr)
DE (2) DE3342469A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499007A (en) * 1993-04-22 1996-03-12 Heinrich Kopp Ag Circuit breaker
AU682429B2 (en) * 1994-03-01 1997-10-02 Heinrich Kopp Ag Circuit breaker
US7839241B2 (en) 2007-05-23 2010-11-23 Abb Ag Electrical service switching device

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431663A1 (de) * 1984-08-29 1986-03-13 Brown, Boveri & Cie Ag, 6800 Mannheim Kupplung fuer l-schutzschalterpole
DE3637275C1 (en) * 1986-11-03 1988-05-05 Flohr Peter Overcurrent trip device for protection switching apparatuses
DE3733595A1 (de) * 1987-10-05 1989-04-20 Asea Brown Boveri Elektrisches schaltgeraet
DE3825443A1 (de) * 1988-07-27 1990-02-01 Asea Brown Boveri Elektrisches schaltgeraet
DE3915127C1 (fr) * 1989-05-09 1990-09-06 Flohr, Peter, Dipl.-Ing., 7790 Messkirch, De
DE4040301A1 (de) * 1990-12-17 1992-07-02 Geyer Gmbh & Co Christian Schaltmechanismus
DE4040263A1 (de) * 1990-12-17 1992-06-25 Abb Patent Gmbh Installationsgeraet
DE19721591A1 (de) * 1997-05-23 1998-11-26 Maier & Cie C Strombegrenzender Schalter
DE19834474A1 (de) 1998-07-30 2000-02-10 Siemens Ag Einrichtung zum Kurzschlußschutz
DE19951249C2 (de) * 1999-10-25 2001-11-08 Abl Sursum Bayerische Elektroz Schutzschalter mit RESET-Stellung
DE102004055564B4 (de) 2004-11-18 2022-05-05 Abb Ag Elektrisches Installationsschaltgerät
DE102005029059A1 (de) * 2005-06-23 2006-12-28 Abb Patent Gmbh Schaltgerät, Leitungsschutzschalter und dergleichen
DE102008006863A1 (de) 2007-05-23 2009-01-22 Abb Ag Elektrisches Installationsschaltgerät
CN111710570A (zh) * 2020-07-22 2020-09-25 南京贝思特信息科技有限公司 一种断路器用自动隔断式隔弧罩

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6607351U (de) * 1968-07-06 1971-02-18 Stotz Kontakt Gmbh Leitungsschutzschalter
CH508293A (de) * 1969-11-15 1971-05-31 Bbc Brown Boveri & Cie Schalttafelgerüst
CH530089A (de) * 1970-11-12 1972-10-31 Siemens Ag Schutzschalter
DE2336222A1 (de) * 1973-07-17 1975-01-30 Baco Const Elect Schaltmechanismus fuer selbstschalter
DE7327872U (de) * 1973-07-30 1973-11-15 Baco Constructions Electriques Anc Baumgarten Leitungsschutzschalter
DE7500060U (de) * 1975-01-03 1975-05-22 Boshof R Leitungsschutzschalter in Schmalbauweise und niedriger Bauart
DE2616825C3 (de) * 1976-04-15 1981-07-02 Brown, Boveri & Cie Ag, 6800 Mannheim Leitungsschutzschalter
DE2802925C2 (de) * 1978-01-24 1980-03-20 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Schaltmechanismus für Leitungsschutzschalter in Flachbauweise
FR2468991A1 (fr) * 1979-10-26 1981-05-08 Legrand Sa Disjoncteur et son mecanisme d'accrochage
DE2943695C2 (de) * 1979-10-30 1983-11-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltmechanismus für Leitungsschutzschalter
DD204343A1 (de) * 1981-08-13 1983-11-23 Wolfgang Suess Leitungsschutzschalter in schmalbauweise

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499007A (en) * 1993-04-22 1996-03-12 Heinrich Kopp Ag Circuit breaker
AU682429B2 (en) * 1994-03-01 1997-10-02 Heinrich Kopp Ag Circuit breaker
US7839241B2 (en) 2007-05-23 2010-11-23 Abb Ag Electrical service switching device

Also Published As

Publication number Publication date
JPS60131728A (ja) 1985-07-13
EP0144799A2 (fr) 1985-06-19
EP0144799A3 (en) 1985-07-10
ATE27205T1 (de) 1987-05-15
DE3463708D1 (en) 1987-06-19
DE3342469A1 (de) 1985-06-05

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