EP2573784B1 - Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage - Google Patents

Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage Download PDF

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Publication number
EP2573784B1
EP2573784B1 EP11182091.6A EP11182091A EP2573784B1 EP 2573784 B1 EP2573784 B1 EP 2573784B1 EP 11182091 A EP11182091 A EP 11182091A EP 2573784 B1 EP2573784 B1 EP 2573784B1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
horned
housing
contours
power circuit
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.)
Active
Application number
EP11182091.6A
Other languages
German (de)
English (en)
Other versions
EP2573784A1 (fr
Inventor
Alexander Spies
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
Priority to EP11182091.6A priority Critical patent/EP2573784B1/fr
Priority to CN201280035694.1A priority patent/CN103688330B/zh
Priority to KR1020147010640A priority patent/KR101653697B1/ko
Priority to US14/127,208 priority patent/US9384908B2/en
Priority to PCT/EP2012/067123 priority patent/WO2013041357A1/fr
Priority to BR112014006449-0A priority patent/BR112014006449B1/pt
Publication of EP2573784A1 publication Critical patent/EP2573784A1/fr
Application granted granted Critical
Publication of EP2573784B1 publication Critical patent/EP2573784B1/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
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2008—Facilitate mounting or replacing contact bridge and pressure spring on carrier
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H01H71/0257—Strength considerations
    • 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 circuit breaker with a contact slide, in which on a spring stock a movable contact piece is arranged, which is arranged opposite to a fixed contact piece.
  • EP-A-1073084 discloses a circuit breaker with such a contact slide.
  • Circuit-breakers in particular low-voltage circuit breakers, are electromagnetic self-switches in the event of a short circuit. Their operation corresponds in principle to the operation of circuit breakers. They are usually equipped with a thermal and a magnetic release and thus have the same structural elements as circuit breakers. However, they are designed for larger rated currents, in addition, the triggers of circuit breakers, unlike the circuit breaker, sometimes separately adjustable. In the low voltage range, the switches are also used as motor protection switches.
  • the task of the circuit breaker is to protect downstream systems, in particular three-phase motors against damage due to overload or short circuit.
  • the circuit breaker should switch off these currents in conjunction with the network protection devices. If there is gas between the two poles, it will be ionized by the flashover with a correspondingly high voltage difference between the poles, forming a self-sustaining gas discharge, also known as an arc. This plasma not only continues to conduct power, but also reduces the life of the device, and at high currents it can even destroy the switch.
  • power circuit breakers are designed in such a way that the arc produced when opening the switch contacts is extinguished quickly and without damage to the switch, thus interrupting the flow of current.
  • a particular problem with circuit breakers with high switching capacity, in particular up to 100 kA at rated currents up to 80 A is that with such large short circuits, the load on the chamber walls, that is, especially on the lower part of the circuit breaker due to the large pressure development, very is high.
  • the housing walls may bend outwards in such tripping operations or lead to a tear in the upper part of the circuit breaker. In the worst case, parts of the shell are broken off.
  • this electrical circuit breaker is provided to glue the preassembled contact and connection parts of the trip unit in the housing or a housing part, so that the attachment of these preassembled contact and connection parts in the housing takes place without additional connection.
  • housing bags are present, which are filled with adhesive material.
  • adhesive pockets protrude pins of the trip unit, which are glued in the adhesive pockets.
  • the permanent adhesive connection keeps the bimetallic position stable. Thermal and mechanical stresses are significantly reduced by the use of the adhesive and by bonding, while the heat and dimensional stability is ensured.
  • the object of the present invention is to provide a circuit breaker, which has stable housing walls even at high switching performance and thereby offers easy installation handling.
  • the horned contours on the Festschalt collaborate cling the switching chambers of the circuit breaker exactly in the range of highest pressure development.
  • the inventive solution provides that the Festschalt thoroughlye are formed so that they form a clamp in the central region of the switching chamber, which holds the respective side walls of the individual phases together. It is thus formed a series circuit of three brackets. Overall, so partition walls and outer walls are mutually supported. In order to enable the stapling, there is a larger recess in the front area of the fixed contact pieces.
  • the Festschalt réellee are also formed by a nose so that the best possible sealing of the switching chamber is still guaranteed.
  • the Festschalt Swiss invention with horned contours is preferably U-shaped and has two parallel aligned legs and a transition region connecting the two legs together.
  • the horned contours are preferably formed as two parallel webs, which are separated by a recess.
  • a nose is preferably formed, which extends as an extension of a leg of Festschalt matterss into the recess, and increases the support surface for soldering the contacts below the leg of Festschalt réelles.
  • the nose also serves as a seal between the upper and lower part of the circuit breaker.
  • the Festschalt Swissalle invention with the horned contours are arranged on opposite sides of the contact slide and positioned parallel to the movable contact piece in the contact slide, so that the respective contacts on the movable contact piece or on Festschaltsch can meet each other in case of short circuit.
  • the contact slide is integrated within the housing of the circuit breaker in a contact slide receiving device, which is designed such that between the horned contours and the nose of Festschalt thoroughlys housing walls or contours for the horned contours are provided, which form the receiving spaces for the horned contours.
  • three parallel aligned chambers are preferably arranged, each receiving a contact slide with two opposite Festschalt congressen. It is thus formed a series circuit of three chambers.
  • the Festschalt Swisse invention with horned contours are characterized by the fact that they reach a significant stiffening of the switching chamber of the circuit breaker without additional parts. The case bend is reduced by it.
  • the contact pieces are fixed well, whereby the order of assembly does not have to be changed. Due to the projecting nose on the fixed contact piece, on the one hand an enlargement of the contact surface for the contacts is made possible, on the other hand a good seal with the upper part of the circuit breaker is ensured.
  • the open cross section at the top sinks from approx. 160mm 2 to 60mm 2 .
  • the wall deflection of the lower part of the circuit breaker in the middle area is limited. According to initial estimates, this limit amounts to 20 to 25% of the previous deflection. The lower part is thus bent out by this amount less than before. Thus, the risk of tearing of the upper part of the circuit breaker is reduced by pressing the lower part.
  • Fig. 1 an inventive Festschalt choir 1 with horned contours 2, 3 is shown, which is preferably U-shaped with two parallel aligned legs 4, 5 and a transition region 6, which connects the two legs 4, 5 together.
  • the horned contours 2, 3 are preferably formed as two parallel webs, which are separated by a recess 7.
  • a nose 8 is preferably formed, which extends as an extension of the leg 4 of the Festschalt schizophrenias 1 in the recess 7 and increases the support surface for soldering the contacts 9 below the leg of each Festschalt Sharings 1.
  • the nose 8 also serves as a seal between the upper and lower part of the circuit breaker.
  • Fig. 2 shows an arrangement of a contact slide 10 and two arranged on the contact slide 10 Festschalt Federationen 1, which are opposite.
  • a spring 11 is arranged, on which a movable contact piece 12 with contacts 13 superimposed.
  • the contacts 9 of the Festschalt conductede 1 are arranged.
  • the fixed contact pieces 1 according to the invention with the horned contours 2, 3 are arranged on opposite sides of the contact slide 10 and positioned parallel to the movable contact piece 12 in the contact slide 10, so that the respective contacts 9, 13 on the movable contact piece 12 and the fixed contact piece 1 in the case of short circuit each other can meet.
  • Fig. 3 the arrangement of contact slide 10 and Festschalt Genevaen 1 is shown within a switchgear housing.
  • the contact slide 10 is integrated within the housing of the circuit breaker in a contact slide receiving device 14 which is designed such that between the horned contours 2, 3 and the nose 8 of the Festschalt Swisss 1 housing walls or counter contours 15 are arranged for the horned contours 2, 3, which form the receiving spaces for the horned contours 2, 3.
  • the counter-contours 15 are preferably L-shaped, with a shekel protruding from the housing wall of the circuit breaker and the other leg is preferably at 90 ° to the first and thus forms a recess to the housing wall for the horned contours 2.3.
  • FIG. 4 an arrangement of the parallel aligned Festschalt Swisse 1 is shown within a switch housing of a circuit breaker. Within a circuit breaker three chambers are preferably arranged, each receiving a contact slide 10 with two opposite Festschalt Swissen 1.
  • Fig. 5 is again shown the series circuit 16 of the stapling within a switchgear housing of a circuit breaker. The stapling is based on the fact that the horned contours 2, 3 of the fixed switching pieces 1 engage in the recesses of the mating contours 15 of the contact slide receiving device.
  • the Festschalt Swisse invention with horned contours are characterized by the fact that they reach a significant stiffening of the switching chamber of the circuit breaker without additional parts. The case bend is reduced by it.
  • the contact pieces are fixed well, whereby the order of assembly does not have to be changed.
  • the protruding nose allows an enlargement of the contact surface for the contacts, on the other hand ensures a good seal with the upper part of the circuit breaker.
  • the open cross section at the top sinks from approx. 160mm 2 to 60mm 2 .
  • the wall deflection of the lower part of the circuit breaker in the middle area is limited. According to initial estimates, this limit amounts to 20 to 25% of the previous deflection.
  • the lower part is thus bent out by this amount less than before. This will also reduce the risk of Tear-off of the upper part of the circuit breaker reduced by pressing the lower part.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Tumbler Switches (AREA)

Claims (3)

  1. Commutateur de puissance doté d'un curseur (10), dans lequel une pièce de commutation mobile (12) située vis-à-vis d'une pièce de commutation fixe (1) est agencée de manière à reposer sur un ressort (11), caractérisé en ce que la pièce de commutation fixe (1) présente un contour en forme de cornes (2, 3) qui s'engage dans des contours complémentaires (15) des parois de la chambre de commutation du commutateur de puissance, la pièce de commutation fixe (1) étant réalisée en forme de U avec deux branches (4, 5) et une zone de jonction (6), la zone de jonction (6) formant le contour en forme de cornes (2, 3) et le contour en forme de cornes (2, 3) se présentant sous la forme de deux passerelles parallèles entre elles qui sont espacées par un évidement (7).
  2. Commutateur de puissance selon la revendication 1, caractérisé en ce qu'est réalisé, dans l'évidement (7), un ergot (8) qui, en tant que prolongement de la branche (4), s'engage dans l'évidement (7) et augmente la surface d'appui pour le brasage des contacts (9).
  3. Commutateur de puissance selon l'une des revendications précédentes, caractérisé en ce que le flux de courant est réalisé via les contours (2, 3) en forme de cornes des pièces de commutation fixes (1).
EP11182091.6A 2011-09-21 2011-09-21 Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage Active EP2573784B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11182091.6A EP2573784B1 (fr) 2011-09-21 2011-09-21 Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage
CN201280035694.1A CN103688330B (zh) 2011-09-21 2012-09-03 具有通过起卡紧作用的固定接触元件来优化壳体加固的断路器
KR1020147010640A KR101653697B1 (ko) 2011-09-21 2012-09-03 인터로킹 작용을 갖는 고정식 접점들에 의해 최적화된 하우징 안정성을 포함하는 회로 차단기
US14/127,208 US9384908B2 (en) 2011-09-21 2012-09-03 Circuit-breaker comprising optimized housing stabilisation by means of fixed contacts with an interlocking action
PCT/EP2012/067123 WO2013041357A1 (fr) 2011-09-21 2012-09-03 Disjoncteur à stabilisation du boîtier optimisée au moyen d'éléments de contact fixes à effet bloquant
BR112014006449-0A BR112014006449B1 (pt) 2011-09-21 2012-09-03 Disjuntor de potência com um deslizador de contato

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11182091.6A EP2573784B1 (fr) 2011-09-21 2011-09-21 Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage

Publications (2)

Publication Number Publication Date
EP2573784A1 EP2573784A1 (fr) 2013-03-27
EP2573784B1 true EP2573784B1 (fr) 2016-08-03

Family

ID=46829735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11182091.6A Active EP2573784B1 (fr) 2011-09-21 2011-09-21 Commutateur de puissance doté d'une stabilisation de boîtier optimisée par des pièces d'établissement de contacts fixes à effet de serrage

Country Status (6)

Country Link
US (1) US9384908B2 (fr)
EP (1) EP2573784B1 (fr)
KR (1) KR101653697B1 (fr)
CN (1) CN103688330B (fr)
BR (1) BR112014006449B1 (fr)
WO (1) WO2013041357A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2573789B1 (fr) 2011-09-21 2016-08-24 Siemens Aktiengesellschaft Commutateur de puissance doté de canaux d'aération pour une évacuation de chaleur efficace
KR101893593B1 (ko) 2016-11-09 2018-08-31 엘에스산전 주식회사 배선용 차단기
FR3115924B1 (fr) * 2020-11-03 2023-05-12 Schneider Electric Ind Sas Porte-contact mobile pour coupe-circuit et coupe-circuit comprenant un tel porte-contact mobile

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US362433A (en) * 1887-05-03 Bedstead
US284065A (en) * 1883-08-28 Poueths to fbeeman lillibbidge
US2840657A (en) * 1955-03-23 1958-06-24 Illinois Tool Works Two circuit snap switch
US3624332A (en) * 1970-09-09 1971-11-30 Oak Electro Netics Corp Snap switch
DE3337515A1 (de) * 1983-10-14 1985-05-02 Siemens AG, 1000 Berlin und 8000 München Schaltstueck fuer elektrische schaltgeraete
JPH0192726U (fr) * 1987-12-11 1989-06-19
JP2812810B2 (ja) * 1990-02-14 1998-10-22 三菱電機株式会社 開閉器
FR2687251B1 (fr) * 1992-02-11 1994-04-29 Telemecanique Structure de coupure pour disjoncteur.
FR2752087B1 (fr) * 1996-07-30 1998-09-11 Schneider Electric Sa Appareil interrupteur de type contacteur-disjoncteur
JPH1092726A (ja) 1996-09-18 1998-04-10 Toshiba Microelectron Corp レジスト塗布装置及びレジスト塗布方法
DE19935661A1 (de) * 1999-07-29 2001-02-01 Abb Patent Gmbh Schaltkontaktanordnung für einen Leistungsschalter
DE19943965A1 (de) * 1999-09-14 2001-03-15 Moeller Gmbh Niederspannungsschaltgerät
DE29918974U1 (de) 1999-10-29 2001-03-08 Moeller Gmbh Elektrisches Schutzschaltgerät
NL1015585C2 (nl) * 2000-07-03 2002-01-04 Holec Holland Nv Schakelaar met hulp-en hoofdcontacten.
CN201311857Y (zh) * 2008-11-15 2009-09-16 浙江天正电气股份有限公司 电开关的静触板安装固定结构

Also Published As

Publication number Publication date
US9384908B2 (en) 2016-07-05
BR112014006449A2 (pt) 2017-03-28
KR20140064994A (ko) 2014-05-28
WO2013041357A1 (fr) 2013-03-28
US20150008106A1 (en) 2015-01-08
EP2573784A1 (fr) 2013-03-27
KR101653697B1 (ko) 2016-09-02
BR112014006449B1 (pt) 2020-09-08
CN103688330A (zh) 2014-03-26
CN103688330B (zh) 2016-11-02

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