EP2637187A1 - Fixation de tôles d'extinction dans le pôle de commutation d'un disjoncteur - Google Patents

Fixation de tôles d'extinction dans le pôle de commutation d'un disjoncteur Download PDF

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Publication number
EP2637187A1
EP2637187A1 EP12194322.9A EP12194322A EP2637187A1 EP 2637187 A1 EP2637187 A1 EP 2637187A1 EP 12194322 A EP12194322 A EP 12194322A EP 2637187 A1 EP2637187 A1 EP 2637187A1
Authority
EP
European Patent Office
Prior art keywords
slot
pole
extinguishing
functional component
switching
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.)
Granted
Application number
EP12194322.9A
Other languages
German (de)
English (en)
Other versions
EP2637187B1 (fr
Inventor
Jörg-Uwe DAHL
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2637187A1 publication Critical patent/EP2637187A1/fr
Application granted granted Critical
Publication of EP2637187B1 publication Critical patent/EP2637187B1/fr
Active 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber
    • 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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber

Definitions

  • the invention relates to the design of the Heidelbergpols or Polkassette a circuit breaker.
  • the invention relates in particular to the attachment of guide and quenching plates inside the polarity cassette of the circuit breaker.
  • Circuit breakers are special switches that are designed for high currents and not only switch on operating currents and low overload currents, but also switch on high overload currents and short-circuit currents in the event of errors, and can hold and switch off these fault currents for a specified time.
  • a circuit breaker in particular has the task of interrupting the current flowing through the circuit breaker.
  • the power interruption is usually carried out by a movable, usually rotatably arranged contact element.
  • the movable contact element is moved away from a stationary contact element, wherein one or more arrangements of movable and stationary contact elements can be present in a circuit breaker.
  • the unit consisting of movable and fixed contact elements is called Heidelbergpol or Polkassette.
  • a switching pole generally has a two-shell housing, which is composed of two shells that are at least approximately symmetrical. During assembly of a switching pole, the components are first introduced into the lower shell and finally placed the upper shell like a lid.
  • a rotatably mounted contact element is provided via that, when the contacts are closed, a current can flow from a first housing-fixed contact element to a second housing-fixed contact element. If such a current has too high a current intensity, a pivoting of the rotatably mounted contact element is initiated by the magnetic field generated by the current itself via the slot motor, so that its contact arms move away from the associated housing-fixed contact elements.
  • an arc is created, which is conducted in the switching poles in an arc chamber. The conduction of the arc is supported by ferromagnetic metal pieces, which lead the arc in the desired manner in the quenching chambers of the Heidelbergpols.
  • the switching poles of modern circuit breakers are often encapsulated with the aid of polarizing cassettes. Instead of preassembled extinguishing chambers this often fire extinguishers from single skins and baffles are mounted.
  • the Indian DE 10 2008 050 754 A1 described switching pole has extinguishing chambers from single skins and baffles.
  • the quenching plates are each held at one end in a slot of one Druckpolgeophusehclient and the other end in a corresponding slot of the second, opposite Heidelbergpolgeophusehdon.
  • the assembly is done again by first placing the components in the lower shell and then placing the upper shell like a lid.
  • the slots surround a portion of the sheets, while the arc extinguishing chambers of the switching pole are formed by the exposed areas of the sheets.
  • the invention has the object, a Polkassette such that on the one hand the control and quenching plates securely held and on the other hand, the closing of the Polkassette is simplified.
  • the technical solution to be specified makes it possible to adequately dimension the extinguishing chambers; in particular, despite the change made, a sufficient extinguishing chamber volume and a total extinguishing plate area of sufficient size must be made available.
  • the specified technical solution should be possible with relatively simple structural means and do not require complex manufacturing processes.
  • the invention relates to the switching pole of a circuit breaker having two pole shells between which in the assembled state at least one switching contact, current-carrying elements and a device for extinguishing an arc are arranged.
  • the device for extinguishing an arc has a guide plate and at least one splitter plate, which limits at least in sections an extinguishing chamber.
  • at least one slot is provided between the pole shells, which serves to receive the extinguishing and / or the baffle.
  • the invention is characterized in that a functional component is provided in the interior between the pole shells, which has at least one slot spaced from the pole shells for receiving the at least one extinguishing and / or baffle plate.
  • the functional component has at least one slot for accommodating at least one deletion or one guide plate.
  • the present invention is thus essentially characterized by the fact that the extinguishing and / or the baffles are held by slots in a functional component, which is already located in the polarized cassette.
  • a functional component which is already located in the polarized cassette.
  • this is the cover of another component, such as a cover of the slot motor, in particular the cover of the slot motor side plates provided with slots.
  • the functional component in particular a cover, has a comb-like extension which has a plurality of slots in which extinguishing and / or baffles can be accommodated.
  • the slot motor side panels are inserted, the sheets during operation in their position relative to each other and held in position with respect to the fixed contacts and the movable contact element in the Polkassette.
  • a component that is required anyway namely a cover of the slot motor for holding the extinguishing and / or baffles used.
  • the extinguishing and / or baffles are additionally attached at their ends in slots which are located in the pole shells or on the inner sides of the housing halves of the Wegpols. In this way, an additional guide, which further simplifies the assembly of a polar cartridge, created.
  • the pole shells and / or the cover of the slot motor are inserted into the additional slots for holding the extinguishing and / or baffles, made of a thermosetting plastic
  • the pole shells and in particular the cover of the slot motor are inserted into the additional slots for holding the extinguishing and / or baffles, made of a thermosetting plastic
  • the slots in the functional component in particular the slots in the cover of the slot motor, can be produced with respect to the guide and / or quenching plates as a press fit. In this way, an optimal guidance of the sheets is realized.
  • transitional or interference fits between the quenching and / or baffles and the cover of the slot motor and / or between the sheets and the slots in the pole shell, which serves during an assembly process of receiving the items provided.
  • Between the sheets and the slots in the last assembly step as a lid patch pole shell preferably no transitional or interference fits are provided. In this area, it is rather advantageous when closing the Polkassette the sheets can be inserted with a light play in the space provided slots of the pole shell.
  • FIG. 1 shows a Heidelbergpol 1 or a Polkassette with two at least partially mutually mirror-symmetrically designed pole shells 2, 3.
  • the lower shell 2 with the required components, in particular the deletion 4 and baffles 5, and the components of Current paths, especially the movable and the housing-fixed contact elements 6, 7 equipped.
  • the upper pole shell 3 is placed and fixed as a lid.
  • a rotatably mounted guide element 6 is provided within the polar cartridge 1, on the one hand, two housing-fixed contact elements 7a, 7b and on the other hand.
  • the rotatably mounted guide element 6 has two arms 8, which contact the respective housing-fixed contact elements 7a, 7b in a rest position.
  • the arms 8 of the rotatably mounted guide element 6 are electrically conductively connected to one another so that current can flow from one housing-fixed contact element 7a to the other housing-fixed contact element 7b via the guide element 6.
  • the magnetic field generated by the current itself causes the guide element 6 to pivot that the arms 8 move away from the associated housing-fixed contact elements 7a, 7b.
  • an arc is first produced which may have temperatures of 5,000 to 6,000 K.
  • the arc is passed into extinguishing chambers 9, in which the arc extinguished.
  • Corresponding extinguishing chambers 9 are arranged on both sides of the rotatably mounted guide element 6, in order to be able to reliably discharge arc arcs that arise on both sides, if required, into the extinguishing chambers 9.
  • the quenching chambers 9 are limited in the embodiment shown by individual quenching plates 4, between which the quenching chambers 9 are located.
  • baffles 5 are provided which have a ferromagnetic metal.
  • 3 slots 10 are provided on the inner sides of the pole shells, which serve to receive and fix the extinguishing 4 and baffles 5.
  • the extinguishing 4 and baffles 5 are also held in accordance with the invention in addition by slots 11 in a cover 12 of the slot motor, here in the covers for the slot motor side panels.
  • FIG. 2 shows the lower shell 2 of a polar cartridge 1 before mounting the erase 4 and baffles 5 and the components of the current path.
  • the made of a thermosetting plastic pole shell 2 has on the inside of slot-shaped recesses 10, which serve to accommodate the deletion 4 and baffles 5.
  • the slots 10 are in this case designed such that they have a slight excess compared to the deletion 4 and baffles 5 and that each about 10% of the surface of a sheet 4, 5 is received in the slot 10.
  • a cover 12 is shown, which is fixed within the polar cassette 1 and which serves on the one hand the cover of the slot motor side panels and on the other hand comb-like Has extensions with slots 11, which serve the leadership of the deletion 4 and baffles 5.
  • the cap 12 is made of thermoplastic material. Thermoplastic plastic offers 11 advantages, especially with regard to the production of the slots.
  • the slots 11 in the cover 12 for the slot motor side plates are designed such that a good guidance of the sheets 4, 5 is given during assembly. This is achieved in that the slots 11 have a sufficient depth and a narrow width.
  • the width of the slots 11 is designed such that between the deletion 4 and baffles 5 and the edge of the cap 11 located in the slots 11 at least one transition fit, but advantageously an interference fit is formed.
  • the slots for receiving the sheets 4, 5 are further designed on the inside of the upper pole shell 3 such that the sheets 4, 5 can be inserted with slight play in the slots.
  • FIG. 3 shows the lower pole shell 2 of the polar cassette 1, which in turn has on its inside slots 10 for receiving the deletion 4- and baffles 5. Furthermore, located inside the lower pole shell 2, the cap 12 for the slot motor side panels. For mounting the baffle 5 and the quenching plates 4 can be inserted from above into the lower pole shell 2, wherein the sheets 4, 5 on the one hand in the lower area through the slots 10 on the inside of the pole shell 2 and on the other hand through the slots 11 in the comb-like extension of Cover cap 12 are received. Since there is at least a slight transition fit between the sheets 4, 5 and the slots 11 of the cap 12, the sheets 4, 5 within the pile cassette 1 are reliable fixed, in particular tilting of the sheets 4, 5 is prevented.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP12194322.9A 2012-03-07 2012-11-27 Fixation de tôles d'extinction dans le pôle de commutation d'un disjoncteur Active EP2637187B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012203598A DE102012203598A1 (de) 2012-03-07 2012-03-07 Befestigung von Löschblechen im Schaltpol eines Leistungsschalters

Publications (2)

Publication Number Publication Date
EP2637187A1 true EP2637187A1 (fr) 2013-09-11
EP2637187B1 EP2637187B1 (fr) 2016-11-16

Family

ID=47357929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12194322.9A Active EP2637187B1 (fr) 2012-03-07 2012-11-27 Fixation de tôles d'extinction dans le pôle de commutation d'un disjoncteur

Country Status (4)

Country Link
US (1) US9123481B2 (fr)
EP (1) EP2637187B1 (fr)
CN (1) CN103311021B (fr)
DE (1) DE102012203598A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012214826A1 (de) * 2012-08-21 2014-02-27 Siemens Aktiengesellschaft Schaltvorrichtung
FR3027728B1 (fr) * 2014-10-22 2017-12-08 Socomec Sa Dispositif de coupure d'arc electrique
EP3916745B1 (fr) * 2020-05-28 2024-03-13 ABB Schweiz AG Commutateur électrique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6297465B1 (en) * 2000-05-25 2001-10-02 Eaton Corporation Two piece molded arc chute
DE10242310A1 (de) * 2001-11-16 2003-07-10 Abb Patent Gmbh Lichtbogenlöschanordnung für ein elektrisches Schaltgerät
EP2110831A2 (fr) * 2008-04-15 2009-10-21 General Electric Company Ensemble de boîte de soufflage pour disjoncteur
DE102008050754A1 (de) 2008-10-07 2010-04-08 Siemens Aktiengesellschaft Leistungsschalter, Schaltpol für Leistungsschalter sowie Schaltpolgehäuseteil

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430631A (en) * 1982-05-10 1984-02-07 Eaton Corporation Circuit breaker with increased current interrupting capacity
DE19735522C1 (de) * 1997-08-16 1999-01-28 Kloeckner Moeller Gmbh Halterung für Löschbleche einer Lichtbogenlöscheinrichtung
FR2803687B1 (fr) * 2000-01-07 2002-02-22 Schneider Electric Ind Sa Pole pour disjoncteur electrique, muni d'une chambre d'extinction d'arc large
EP1313117B1 (fr) 2001-11-16 2014-06-04 Abb Ag Dispositif d'extinction d'arc pour un interrupteur électronique
DE102005044540A1 (de) * 2005-09-17 2007-03-22 Abb Patent Gmbh Elektrisches Installationsschaltgerät
US7674996B2 (en) * 2006-09-20 2010-03-09 Eaton Corporation Gassing insulator, and arc chute assembly and electrical switching apparatus employing the same
DE102010020343A1 (de) * 2010-05-12 2011-12-08 Abb Ag Installationsschaltgerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6297465B1 (en) * 2000-05-25 2001-10-02 Eaton Corporation Two piece molded arc chute
DE10242310A1 (de) * 2001-11-16 2003-07-10 Abb Patent Gmbh Lichtbogenlöschanordnung für ein elektrisches Schaltgerät
EP2110831A2 (fr) * 2008-04-15 2009-10-21 General Electric Company Ensemble de boîte de soufflage pour disjoncteur
DE102008050754A1 (de) 2008-10-07 2010-04-08 Siemens Aktiengesellschaft Leistungsschalter, Schaltpol für Leistungsschalter sowie Schaltpolgehäuseteil

Also Published As

Publication number Publication date
CN103311021A (zh) 2013-09-18
CN103311021B (zh) 2017-11-21
DE102012203598A1 (de) 2013-09-12
US20130234812A1 (en) 2013-09-12
US9123481B2 (en) 2015-09-01
EP2637187B1 (fr) 2016-11-16

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