EP1073084B1 - Dispositif de contact de commutation pour disjoncteur - Google Patents

Dispositif de contact de commutation pour disjoncteur Download PDF

Info

Publication number
EP1073084B1
EP1073084B1 EP00114806A EP00114806A EP1073084B1 EP 1073084 B1 EP1073084 B1 EP 1073084B1 EP 00114806 A EP00114806 A EP 00114806A EP 00114806 A EP00114806 A EP 00114806A EP 1073084 B1 EP1073084 B1 EP 1073084B1
Authority
EP
European Patent Office
Prior art keywords
contact
tappet
contact bridge
projection
arrangement
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
EP00114806A
Other languages
German (de)
English (en)
Other versions
EP1073084A3 (fr
EP1073084A2 (fr
Inventor
Correl Dipl.-Ing. Göbel
Guido Dipl.-Ing. Niewöhner
Ralf Dipl.- Ing Müller
Georgi Dipl.-Ing. Cwetanski
Jürgen Dipl.-Ing Hauk
Jörg Stamm
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 EP1073084A2 publication Critical patent/EP1073084A2/fr
Publication of EP1073084A3 publication Critical patent/EP1073084A3/fr
Application granted granted Critical
Publication of EP1073084B1 publication Critical patent/EP1073084B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214—Housing or casing lateral walls containing guiding grooves or special mounting facilities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Definitions

  • the invention relates to a switch contact arrangement, in particular for a circuit breaker, according to the preamble of claim 1.
  • Circuit breakers in particular motor protection switches, have one double contact point per phase, where there are two fixed contact pieces, one with a Contact bridge, on which two movable contact pieces are attached, are bridged.
  • Arc quenching chambers are assigned to the double contact point when the device is switched off, the two arcs migrate in and are extinguished become.
  • the contact points are in the lower part of the circuit breaker, whereas the actuators, such as. B. the key switch, the electromagnetic and thermal triggers are in the upper part.
  • EP 0 556 109 B1 discloses the movable contact bridge in a pusher to store, which in turn is stored in a cage.
  • the object of the invention is a switching contact arrangement of the type mentioned to create, in which the assembly is simplified by reducing the number of parts.
  • the contact bridge is inserted in a slot of an extension of a plunger, which extension, which projects over the contact bridge, inside a coil spring trained contact pressure spring is used; then the plunger with the Contact bridge and the contact pressure spring in a receiving opening of the circuit breaker engaged.
  • the plunger is in the form of a cuboid Basic body formed, on one surface of the extension with the slot and of which a pin is formed on this opposite surface, the pin with a release element that comes from the switch lock or from the electromagnetic release is actuated or driven, cooperates.
  • Fig. 1 shows a lower housing part 10 of a circuit breaker, which by means of a Housing upper part, not shown, supplemented to a circuit breaker housing becomes.
  • the lower housing part 10 is by means of a bottom wall 14 and with front End walls 15 and 16 provided; on the bottom wall 14 also close side walls 17 and 18.
  • FIG. 2 shows a partial sectional view of the lower housing part 10 in the region of the chamber 11 with plunger 20 inserted therein, transverse to the longitudinal extension of the contact bridge 30 cut.
  • An upper housing part 50 is placed on the lower housing part 10, which with wall sections 51, the lower housing part 10 on its outer broad sides overlaps.
  • a wall section 52 is also arranged on the upper housing part 50, the in a slot 53 on the lower housing part for guiding the upper housing part intervenes.
  • the chamber 11 is practically on both sides of the wall sections 51 and 52 includes.
  • the wall section 52 is then a boundary wall for the chamber 12th
  • a plunger 20 which has approximately a cuboid shape, as shown in more detail in FIG. 1, has on one end face 21 a pin 22 which with a not described Drive element of the circuit breaker interacts. This drive element is coupled with the electromagnetic release or with a key switch.
  • extension 24 integrally formed, which has a slot 25.
  • the Extension 24 is formed by two extension sections 26 and 27 which pass through the slot 25 are separated from each other.
  • the outer contour of the extension sections 26 and 27 is on the one hand circular in the section 28 which directly adjoins the end face 23. This is followed by a frustoconical section on each extension section 26, 27 29, this frustoconical section 29 as well as the cylindrical one Section 28 of the two extension sections 26 and 27 have a common central axis have.
  • a contact bridge 30 is inserted, on the movable on both sides Contact pieces 31 are attached.
  • the contact piece 31 lying at the front can be seen here, whereas the rear contact piece from the plunger 20a of the arrangement, which is placed in the chamber 12 is covered.
  • you can at the contact bridge 30a easily recognize the movable contact pieces 31a and 32a.
  • the plunger 20 has a cuboid shape, with those Side surfaces of the cuboid shape that are transverse to the longitudinal extent of the contact bridge 30 are graded by means of a gradation 33.
  • a contact pressure spring 34 is inserted into a recess 54 (FIG. 2).
  • the contact bridge 30 is inserted into the slot 25, as in the contact bridge 30a and the Plunger 20a can be seen, and the plunger 20 with the contact bridge 30 is connected to the extension 24 inserted into the contact pressure spring 34, as can be seen in FIG. 2.
  • the contact pressure spring 34 lies against the bottom surface 14 of the recess 54 in the chamber 11 on.
  • lugs 35 and 36 are formed on both sides, which in grooves 37 and 38 of the side wall 39 and 40 of the chamber engage.
  • Fig. 1 shows the Tappet 20b as inserted into its receiving opening.
  • the grooves 37 and 38 are located on the inside of a tab 41, which is suitably by means of two Slots 42 and 43 is formed from a wall portion 44 so that the tab 41st can spring open better to be able to insert the plunger.
  • tab shapes visible at the front in FIG. 1 are the individual chambers on all of them 11, 12 and 13 bounding walls are provided. It can be seen in Fig. 1 that the Tabs 41 are between chamber boundary walls 45 and 46, such Have a distance from each other that the contact bridge 30 are inserted between them can.
  • the spring 34 is first or the springs 34 are in their associated Insertion openings inserted; then the plunger 20, 20a and 20b with the Contact bridges with their extensions 24 inserted into the interior of the contact pressure springs 34.
  • arc quenching plate packages are into the lower housing part, afterwards the upper housing part 50 (not shown) to apply to the lower part and to lock it with it.
  • the plunger 20 in the lower part of the housing 10 is inserted and located therein, passes through a recess 55 in the upper part of the housing and is guided in it, so that the plunger practically within the Recess 55 can slide.
  • the contact bridge 30 has not been shown in detail fixed contact pieces and the plunger 20 can therefore be a certain Move the amount defined by the depth of the slot 25.
  • a Switch-off action is triggered by a trigger or another actuating element in the direction of the arrow P on the pin 22, whereby the plunger 20 is moved downward in the direction of arrow P. until the bottom 56 of the slot 25 hits the contact bridge 30 and the contact bridge of the fixed contact pieces, not shown, also in the direction of the arrow P, downward.
  • the grooves 38 and 37 are elongated Grooves that are at a distance from the free end of the walls or tabs 39 and 40 end so that the plunger 20 with its projections 36 and 35 after snapping is held within the grooves 38 and 37.
  • the length of the grooves 37 and 38 is dimensioned, measured in the direction of movement of the plunger 20, so that the plunger downwards, that is to the bottom wall 14 of the switching device, sufficient freedom of movement has.
  • wall sections 52 corresponding wall sections are also present in the other chambers.

Landscapes

  • Breakers (AREA)

Claims (5)

  1. Dispositif de contact de commutation pour un disjoncteur comportant au moins une partie de boítier inférieure, en particulier pour un disjoncteur de puissance, avec un point de contact double pour chaque phase, avec deux plots de contact fixes disposés à distance l'un de l'autre dans une ligne de phase, qui sont pontés par un archet de contact, avec un ressort de contact et avec un guide d'archet de contact pour chaque phase, qui est formé d'un poussoir (20, 20a, 20b) portant un prolongement (24) avec une fente (25) dans laquelle est monté l'archet de contact (30) concerné, caractérisé en ce que le prolongement (24), qui dépasse par rapport à l'archet de contact (30), peut être engagé dans un ressort de contact (34) et en ce que le poussoir (20, 20a, 20b) avec l'archet de contact peut être encliqueté dans une ouverture de montage du disjoncteur.
  2. Dispositif de contact de commutation selon la revendication 1, caractérisé en ce que le poussoir (20) présente un corps de base parallélépipédique qui porte le prolongement sur l'une de ses faces (23) et un téton (22) sur la face opposée à celui-ci.
  3. Dispositif de contact de commutation selon une des revendications 1 et 2, caractérisé en ce que le prolongement (24) est formé de deux parties (26, 27), dont les surfaces extérieures définissent une portion cylindrique (28) et une portion conique (29) avec un axe médian commun.
  4. Dispositif de contact de commutation selon une des revendications précédentes, caractérisé en ce que l'ouverture de montage (54) est aménagée dans la partie de boítier inférieure (10).
  5. Dispositif de contact de commutation selon une des revendications précédentes, caractérisé en ce qu'il est prévu sur le poussoir (20) des ergots d'encliquetage qui pénètrent dans des rainures (38, 37) aménagées dans la direction de déplacement du poussoir et qui retiennent et guident le poussoir dans les rainures.
EP00114806A 1999-07-29 2000-07-11 Dispositif de contact de commutation pour disjoncteur Expired - Lifetime EP1073084B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19935661 1999-07-29
DE19935661A DE19935661A1 (de) 1999-07-29 1999-07-29 Schaltkontaktanordnung für einen Leistungsschalter

Publications (3)

Publication Number Publication Date
EP1073084A2 EP1073084A2 (fr) 2001-01-31
EP1073084A3 EP1073084A3 (fr) 2002-08-14
EP1073084B1 true EP1073084B1 (fr) 2003-08-27

Family

ID=7916487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114806A Expired - Lifetime EP1073084B1 (fr) 1999-07-29 2000-07-11 Dispositif de contact de commutation pour disjoncteur

Country Status (2)

Country Link
EP (1) EP1073084B1 (fr)
DE (2) DE19935661A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005345A1 (de) 2010-01-21 2011-07-28 Abb Ag, 68309 Elektrisches Schaltgerät in modularer Bauweise
DE202015100926U1 (de) 2015-02-26 2015-03-10 Abb Technology Ag Elektrisches Schaltgerät in modularer Bauweise
US9147541B2 (en) 2011-09-21 2015-09-29 Siemens Aktiengesellschaft Circuit breaker comprising ventilation channels for efficient heat dissipation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10356271B4 (de) 2003-11-28 2008-02-14 Siemens Ag Schaltgerät
US7265311B1 (en) * 2006-04-26 2007-09-04 Caton Corporation Arc chamber barrier with interlocking top for circuit breaker
DE102007054426B4 (de) * 2006-11-24 2010-08-05 Abb Ag Schaltkammer-Baugruppe und Schaltgerät
EP2573784B1 (fr) * 2011-09-21 2016-08-03 Siemens Aktiengesellschaft Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage
DE102012015247A1 (de) 2012-08-01 2014-02-20 Abb Ag Schaltkammer-Baugruppe und Schaltgerät
CN105340041B (zh) * 2013-09-13 2017-07-07 西门子公司 在短路情况下具有改善的触发机械机构的开关装置
CN105679619B (zh) * 2016-03-30 2017-11-10 上海电科电器科技有限公司 电器开关的接通分断机构
FR3074355B1 (fr) * 2017-11-28 2020-12-18 Schneider Electric Ind Sas Dispositif de coupure d'un courant electrique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH213673A (de) * 1938-12-10 1941-02-28 Bosch Gmbh Robert Kontakteinrichtung an durch einen Elektromagneten betriebenen Geräten, insbesondere an Kraftstoff-Förderpumpen.
DE1750483U (de) * 1954-11-19 1957-08-14 Siemens Ag Halteeinrichtung fuer brueckenkontakte.
BE557110A (fr) * 1956-06-18
DE1872034U (de) * 1961-10-05 1963-05-16 Starkstrom Schaltgeraetefabrik Elektrisches schaltgeraet.
DE8023868U1 (de) * 1980-09-06 1982-03-25 Starkstrom Gummersbach GmbH, 5277 Marienheide Kontaktvorrichtung für Niederspannungs-Schaltgeräte, insbesondere Schütze
DD200261A1 (de) * 1981-09-18 1983-04-06 Henry Baumruker Anordnung zur halterung von beweglichen schaltgliedern in der traverse eines elektrischen schaltgeraetes
IT1238322B (it) * 1990-01-19 1993-07-12 Bremas Spa Punteria in particolare per la cooperazione con alberi a camme in commutatori elettrici, interruttori o similari
FR2687251B1 (fr) * 1992-02-11 1994-04-29 Telemecanique Structure de coupure pour disjoncteur.
DE19540972B4 (de) * 1995-11-03 2005-05-04 Moeller Gmbh Strombegrenzendes Kontaktsystem mit Doppeltunterbrechung für Niederspannungs-Schutzschalter
DE19757332C1 (de) * 1997-12-22 1999-07-22 Siemens Ag Lichtbogenlöscheinrichtung für ein Schaltgerät
DE19818058C2 (de) * 1998-04-22 2000-12-14 Siemens Ag Schaltgerät mit einer Schaltkammer-Baugruppe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005345A1 (de) 2010-01-21 2011-07-28 Abb Ag, 68309 Elektrisches Schaltgerät in modularer Bauweise
DE102010005345B4 (de) 2010-01-21 2022-04-21 Abb Schweiz Ag Elektrisches Schaltgerät in modularer Bauweise
US9147541B2 (en) 2011-09-21 2015-09-29 Siemens Aktiengesellschaft Circuit breaker comprising ventilation channels for efficient heat dissipation
KR101608685B1 (ko) 2011-09-21 2016-04-04 지멘스 악티엔게젤샤프트 효율적인 열 방산을 위한 통풍 채널을 포함하는 회로 차단기
DE202015100926U1 (de) 2015-02-26 2015-03-10 Abb Technology Ag Elektrisches Schaltgerät in modularer Bauweise

Also Published As

Publication number Publication date
EP1073084A3 (fr) 2002-08-14
DE19935661A1 (de) 2001-02-01
DE50003424D1 (de) 2003-10-02
EP1073084A2 (fr) 2001-01-31

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