EP0916151B1 - Disjoncteur limiteur de courant - Google Patents

Disjoncteur limiteur de courant Download PDF

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Publication number
EP0916151B1
EP0916151B1 EP97932787A EP97932787A EP0916151B1 EP 0916151 B1 EP0916151 B1 EP 0916151B1 EP 97932787 A EP97932787 A EP 97932787A EP 97932787 A EP97932787 A EP 97932787A EP 0916151 B1 EP0916151 B1 EP 0916151B1
Authority
EP
European Patent Office
Prior art keywords
rotate
circuit breaker
switching piece
driver
breaker according
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
EP97932787A
Other languages
German (de)
English (en)
Other versions
EP0916151A1 (fr
Inventor
Lutz Thilker
Wolfgang Erven
Albert Zacharias
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.)
Eaton Industries GmbH
Original Assignee
Moeller 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 Moeller GmbH filed Critical Moeller GmbH
Publication of EP0916151A1 publication Critical patent/EP0916151A1/fr
Application granted granted Critical
Publication of EP0916151B1 publication Critical patent/EP0916151B1/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
    • 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
    • H01H1/2041—Rotating bridge
    • H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/102—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement
    • H01H77/104—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement with a stable blow-off position

Definitions

  • the invention relates to a current-limiting circuit breaker with at least one two-armed rotary contact, which in its closed home position two fixed contact pieces connects with each other, the fixed Switch pieces are designed such that at one Overload case between them and the current-carrying rotating one Switch piece result in electrodynamic forces that rotatable contact piece against the pressure of at least one contact spring from its closed position to an open one Swivel locking position.
  • Such a circuit breaker is known from EP-A1-560 696 known. It comprises one arranged in a switch chamber housing Contact arrangement with two fixed contacts, which each via rail-shaped conductors with corresponding connection terminals are connected. It is also a two-armed order an axis rotatable contact piece is provided, which in its closed position, i.e. Basic position, the two fixed Contact pieces connects with each other, the fixed contact pieces are designed so that in the event of an overload, e.g. in the event of a short circuit, between them and the current-carrying one rotatable contact piece due to the developing Magnetic fields result in forces from the rotatable contact pivot its closed position, i.e. electrodynamic open and bring it into an open end position.
  • EP-A1-406 130 is a current-limiting circuit breaker known in which at the Movable switching element arranged a cam-like locking element which is when the contact piece is pivoted from its basic position to a safety position of one spring-loaded pivotable locking member on the pivoting back is prevented in the home position.
  • the object of the invention is to provide a circuit breaker Specify the type mentioned at the outset in the safety position of the rotatable contact piece until it is released by actuating an appropriate control element is held.
  • An advantageous embodiment is that on the Locking member a control cam is arranged, the locking element facing side is formed as a blocking surface, the the rotatable contact piece in the locked position fixed in this position.
  • a driving surface which is chosen such that them from the nose-shaped locking element only after reaching the Secure position of the rotatable contact piece is reached and in the case of an electrodynamic opening of the rotatable Switch piece whose braking movement brakes.
  • the housing parts are designed such that the stop surfaces the nose-shaped locking elements in the housing parts lie.
  • the stop surfaces preferably consist of a damping material. It is expedient on the Locking element facing away from the driver a guide pin provided on which the locking member is longitudinally displaceable is arranged.
  • the other end of the gap-shaped recess preferably has a stop surface on which the rotatable contact in its basic position.
  • the rotatable Switch piece by means of the stop surface on a (e.g. manual) Operation of the circuit breaker by turning the corresponding control element against the pressure corresponding Contact springs also pivoted into its locking position become.
  • the rotatable contact piece is also in this Case by blocking the nose-shaped locking elements by means of at least one axially displaceable locking member in its Secured position held.
  • the contact surfaces of the driver part and the locking member at least in a partial area wedge-shaped, so that when the Carrier by means of the corresponding control element axial displacement of the locking member against the restoring force corresponding locking member springs. This will make the Latch released by the locking member and the locking piece pivoted back into its basic position by the contact springs.
  • FIG. 1 denotes a circuit breaker, the one Switch chamber housing with housing parts 2, 3 and one in the housing arranged contact arrangement comprises.
  • two terminals 4, 5 are provided, which are loop-shaped trained rail-shaped conductors 6, 7 with two fixed contact pieces 8, 9 (Fig.3) are connected.
  • the firm Switch pieces 8, 9 are countered by means of an axis 10 the pressure of corresponding contact springs 100 (Fig.3) rotatable Switch piece 11 bridges.
  • the two arms 12 13 of the rotatable contact piece 11 via contact pads 14, 15 against corresponding contact pads 16, 17 of the fixed contact pieces 8, 9.
  • On the rotatable contact piece 11 are two opposite nose-shaped locking elements 18, 19 arranged in a rotationally fixed manner. 2 in FIG.
  • Designated pivotable driver which has two guide pins 21 can be connected to a claw coupling 22, 23 in each case is.
  • These dog clutches are, for example, corresponding Control elements of the switch lock, not shown of the circuit breaker 1 or with adjacent contact arrangements connected for further network phases.
  • the driver 20 has a gap-shaped recess in its central area 24, which extends in the circumferential direction of the driver and along which the nose-shaped locking elements 18, 19 can be pivoted are.
  • the recess 24 faces in the circumferential direction seen - in relation to each of the two locking elements each have a driver surface 25 or 27 and a stop surface 26 or 28 (Fig.3), whose functions below still to be explained.
  • This minimum distance should be chosen such that at Rotation of the driver 20, the control cams 33, 34 of the locking members 31, 32 because of the wedge-shaped surfaces 44 to 47 far in the direction of the locking member springs 101 that the locking elements 18, 19 no longer by the control cam 33, 34 can be blocked.
  • the stop surfaces are made of a damping material, e.g. made of plastic, rubber or an energy-consuming metal foam, consist.
  • Another advantageous alternative consists in forming the housing parts 2, 3 such that the stop surfaces are in the housing parts.
  • the invention is of course not based on the above described embodiment limited. So you can Invention for example instead of two axially displaceable Realize locking elements with only one locking element, provided the locking area on the control cam is sufficiently wide is chosen. Instead of one of the two side surfaces of the The control cam can design the control cam as a blocking surface also be provided with a recess which is in the respective front surface of the control cam, so that after a predeterminable swivel path of the rotatable contact the locking element is pressed into this recess.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Claims (11)

  1. Disjoncteur limiteur de courant comprenant un agencement de contact disposé dans un boítier de chambre de commutation, qui comprend au moins deux pièces de commutation fixes (8, 9), et comprenant au moins une pièce de commutation (11) à deux bras, pouvant tourner autour d'un axe (10), qui relie, dans sa position de base fermée, les deux pièces de commutation fixes (8, 9) l'une à l'autre, les pièces de commutation fixes (8, 9) étant configurées de telle sorte que dans le cas d'une surcharge entre elles et la pièce de commutation rotative (11) parcourue par le courant, des forces électrodynamiques en résultent, lesquelles font pivoter la pièce de commutation rotative (11) à l'encontre de la pression d'au moins un ressort de contact (100) de sa position fermée dans une position de sécurité ouverte, au moins un élément d'encliquetage (18, 19) étant disposé sur la pièce de commutation rotative (11), lequel se déplace lors d'un pivotement de la pièce de commutation (11) de la position de base dans la position de sécurité et dans cette position est empêché par au moins un organe de blocage (31, 32) sollicité par ressort de revenir par pivotement dans la position de base, caractérisé en ce que l'au moins un organe de blocage (31, 32) disposé fixe en rotation dans la position de sécurité dans le boítier de la chambre de commutation vient en prise de manière déplaçable sur l'au moins un élément d'encliquetage (18, 19) réalisé en forme de nez dans la direction de l'axe (10).
  2. Disjoncteur selon la revendication 1, caractérisé en ce qu'une came de commande (33, 34) est disposée sur l'organe de blocage (31, 32), son côté tourné vers l'élément d'encliquetage (18, 19) étant réalisé en tant que surface de blocage (42, 43) qui fixe dans cette position la pièce de commutation rotative (11) se trouvant dans la position de sécurité.
  3. Disjoncteur selon la revendication 1 ou 2, caractérisé en ce qu'il est prévu un entraíneur (20) pivotant autour de l'axe (10), qui présente au moins un évidement en forme de fente (24), le long duquel l'élément d'encliquetage en forme de nez (18, 19) peut pivoter dans la direction périphérique.
  4. Disjoncteur selon la revendication 3, caractérisé en ce que, vu dans la direction périphérique, l'évidement (24) en forme de fente présente, sur l'une de ses extrémités, une surface de butée (26, 28), qui est choisie de telle sorte qu'elle soit atteinte lors du mouvement de pivotement de la pièce de commutation rotative (11) par l'élément d'encliquetage en forme de nez (18, 19) seulement après que la position de sécurité de la pièce de commutation rotative (11) a été atteinte.
  5. Disjoncteur selon la revendication 3, caractérisé en ce que les pièces du boítier (2, 3) sont réalisées de telle sorte que les surfaces de butée (26, 28) des éléments d'encliquetage en forme de nez (18, 19) se trouvent dans les pièces du boítier (2, 3).
  6. Disjoncteur selon la revendication 4 ou 5, caractérisé en ce que la surface de butée (26, 28) se compose d'un matériau amortissant.
  7. Disjoncteur selon l'une quelconque des revendications 3 à 6, caractérisé en ce que du côté de l'entraíneur (20) opposé à l'élément d'encliquetage (18, 19) est prévu un tourillon de guidage (21) sur lequel l'organe de blocage (31, 32) est disposé de manière déplaçable longitudinalement.
  8. Disjoncteur selon l'une quelconque des revendications 3 à 7, caractérisé en ce que, vu dans la direction périphérique, l'autre extrémité de l'évidement en forme de fente (24) forme une surface d'entraínement (25, 27) pour la pièce de commutation rotative (11) dans sa position de base, et en ce que pour une rotation de l'entraíneur (20), la pièce de commutation rotative (11) peut être pivotée depuis la surface d'entraínement (25, 27) à l'encontre de la pression du ressort de contact (100) dans sa position de sécurité.
  9. Disjoncteur selon l'une quelconque des revendications 3 à 8, caractérisé en ce que les surfaces de contact (44 à 47) de l'entraíneur (20) et de l'organe de blocage (31, 32) sont réalisées au moins dans une région partielle en forme de clavette de telle sorte que pour une pièce de commutation rotative (11) se trouvant dans sa position de sécurité, lors d'une rotation de l'entraíneur (20), un déplacement axial de l'organe de blocage (31, 32) ait lieu à l'encontre de la force de rappel d'un ressort de compression (101), de sorte que l'élément d'encliquetage (18, 19) soit libéré de l'organe de blocage (31, 32) et que la pièce de commutation rotative (11) soit pivotée par le ressort de contact (100) dans sa position de base.
  10. Disjoncteur selon l'une quelconque des revendications 1 à 9, caractérisé en ce que deux éléments d'encliquetage en forme de nez (18, 19) décalés chacun de 180° sont disposés sur la pièce de commutation rotative (11).
  11. Disjoncteur selon l'une quelconque des revendications 1 à 10, caractérisé en ce que deux organes de blocage (31, 32) sollicités par ressort déplaçables dans la direction axiale sont prévus, lesquels sont disposés axialement devant et derrière la pièce de commutation rotative (11) et dont les surfaces de blocage respectives (42, 43) donnent conjointement une surface qui empêche le pivotement vers l'arrière de la pièce de commutation rotative (11) dans sa position de base.
EP97932787A 1996-07-27 1997-07-09 Disjoncteur limiteur de courant Expired - Lifetime EP0916151B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19630470 1996-07-27
DE19630470A DE19630470C1 (de) 1996-07-27 1996-07-27 Strombegrenzender Leistungsschalter
PCT/EP1997/003621 WO1998005053A1 (fr) 1996-07-27 1997-07-09 Sectionneur de puissance limiteur de courant

Publications (2)

Publication Number Publication Date
EP0916151A1 EP0916151A1 (fr) 1999-05-19
EP0916151B1 true EP0916151B1 (fr) 2003-05-02

Family

ID=7801110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97932787A Expired - Lifetime EP0916151B1 (fr) 1996-07-27 1997-07-09 Disjoncteur limiteur de courant

Country Status (3)

Country Link
EP (1) EP0916151B1 (fr)
DE (2) DE19630470C1 (fr)
WO (1) WO1998005053A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10054383A1 (de) * 2000-10-27 2002-05-08 Siemens Ag Strombegrenzender Niederspannungs-Leistungsschalter
US9572534B2 (en) 2010-06-29 2017-02-21 Abbott Diabetes Care Inc. Devices, systems and methods for on-skin or on-body mounting of medical devices
DE102007011451A1 (de) * 2007-03-06 2008-09-11 Siemens Ag Kontakthebelbewegungseinrichtung und elektrischer Schalter sowie Verfahren zur Herstellung der Kontakthebelewegungseinrichtung
DE102008039066A1 (de) * 2008-08-21 2010-02-25 Siemens Aktiengesellschaft Leistungsschalter mit verschwenkbarem Überbrückungselement
DE102008047247A1 (de) * 2008-09-10 2010-04-15 Siemens Aktiengesellschaft Kontaktsystem für ein Schaltgerät mit einem Schaltwellensegment drehbar gelagerten Kontaktglied und mit einer axial dazwischen angeordneten Rasteinrichtung
DE102008056493A1 (de) * 2008-11-06 2010-05-12 Siemens Aktiengesellschaft Betätigungseinrichtung für mindestens einen an einem Schaltgerät anbringbaren Hilfsschalter und/oder Hilfsauslöser
DE102010014428A1 (de) * 2010-04-01 2011-10-06 Siemens Aktiengesellschaft Schalter, insbesondere Leistungsschalter
CN113012964A (zh) * 2021-03-01 2021-06-22 国网山东省电力公司齐河县供电公司 电气设备的防漏电装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052519A (fr) * 1963-04-11 1900-01-01
DE3431288A1 (de) * 1984-08-23 1986-03-06 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer niederspannungs-leistungsschalter mit einem zweiarmigen kontakthebel
FR2622347B1 (fr) * 1987-10-26 1995-04-14 Merlin Gerin Dispositif de coupure pour un disjoncteur multipolaire a contact rotatif double
FR2648952B1 (fr) * 1989-06-26 1991-09-13 Merlin Gerin Disjoncteur limiteur equipe d'un dispositif retardateur de retombee de contact a effet electromagnetique
FR2688625B1 (fr) * 1992-03-13 1997-05-09 Merlin Gerin Contact d'un disjoncteur a boitier moule

Also Published As

Publication number Publication date
DE59709980D1 (de) 2003-06-05
DE19630470C1 (de) 1997-08-28
WO1998005053A1 (fr) 1998-02-05
EP0916151A1 (fr) 1999-05-19

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