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EP1218905B1 - Contacteur a vide - Google Patents

Contacteur a vide Download PDF

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Publication number
EP1218905B1
EP1218905B1 EP00979409A EP00979409A EP1218905B1 EP 1218905 B1 EP1218905 B1 EP 1218905B1 EP 00979409 A EP00979409 A EP 00979409A EP 00979409 A EP00979409 A EP 00979409A EP 1218905 B1 EP1218905 B1 EP 1218905B1
Authority
EP
European Patent Office
Prior art keywords
armature
driving
force
vacuum
deflected
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
EP00979409A
Other languages
German (de)
English (en)
Other versions
EP1218905A1 (fr
Inventor
Markus Meier
Johann Drexler
Bardo Koppmann
Markus Kropp
Norbert Mitlmeier
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1218905A1 publication Critical patent/EP1218905A1/fr
Application granted granted Critical
Publication of EP1218905B1 publication Critical patent/EP1218905B1/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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/38—Power arrangements internal to the switch for operating the driving mechanism using electromagnet

Definitions

  • the actuator In contactors, the actuator is deflected against a spring force usually when the drive coil with the attraction current of the armature and the armature with the armature.
  • the spring force thus acts in the direction of the anchor rest position and the element rest position. This spring force must be overcome by the tightening torque exerted by the drive coil due to the attraction current to the armature.
  • the tightening torque depends on the starting current, which in turn depends on the supply voltage supplied to the drive coil.
  • Both the tightening torque and the restoring spring force vary along the path by which the armature and actuator are deflected.
  • Anchor and actuator remain in such a case either hang in an intermediate position or operated by the actuator contact is only operated without pressure. Depending on the duration of this condition, this can lead to high wear, usually also to damage, in extreme cases even to the destruction of the contactor.
  • tilting behavior In air riflemen, that is Sagittarius, whose contacts are surrounded by air, it is possible to interpret this so that armature and actuator are either not deflected from their rest positions or completely transferred to their operating positions. Such a behavior of a contactor is referred to as tilting behavior.
  • the force to be overcome along the flow path can be selected independently of the contact arrangement and in particular independently of the fact that vacuum contacts are actuated.
  • the force to be overcome can be selected as small as comparable to air riflemen. hereby can be achieved with a suitable design of the vacuum contactor, the tilting behavior.
  • Vacuum contactors With vacuum contactors, arcs are lost even at low contact openings. Vacuum contactors therefore generally have shorter switching paths than contactors.
  • the known dimensions of air rifles can therefore be taken if the sum of the flow path and driving path corresponds to the contact path of an air contactor. In practice, this corresponds to a ratio of supply path to transport path between 1: 3 and 3: 1. In general, the ratio of flow path to driving path is between 2: 3 and 3: 2.
  • the armature is steered against a driving force during the passage of the flow path against a flow and during the passage of the driving path.
  • a tilting behavior can be achieved with great certainty, if the flow rate is less than the driving force.
  • this usually means that the ratio of supply force to driving force between 1:10 and 1: 2, in particular between 1: 5 and 1: 4.
  • the structural design of the vacuum contactor is particularly simple when the flow force of a Vorlauffeder appealing and the driving force is applied by a driving spring device, the Vorlauffeder annoying is supported on the one hand on the armature and on the other hand on the actuator and the driving spring is supported on the one hand on the actuator and on the other hand on the contactor housing.
  • the flow path is determined in a particularly simple manner exactly.
  • a vacuum contactor has a contactor housing 1.
  • the contactor housing 1 is shown only in sections in FIG.
  • a drive coil 2 is rigidly secured.
  • an armature 3, an actuator 4 and a contact bridge 5 are movably mounted in the contactor housing 1.
  • the contactor has a forward spring device 6, a driving spring device 7 and a compression spring device 8.
  • the spring means 6 - 8 are formed according to embodiment as a compression spring means. But they could also be designed differently, for. B. as torsion spring devices.
  • the advancing spring device 6 is supported on the one hand on the armature 3 and on the other hand on the actuating element 4.
  • the driving spring device 7 is supported on the one hand on the actuating element 4 and on the other hand on the contactor housing 1.
  • the pressure spring device 8 is supported on the one hand on the actuating element 4 and on the other hand on the contact bridge 5 from.
  • the drive coil 2 is acted upon by a starting current IA, the armature 3 is deflected from its armature rest position AR into an armature actuating position AB.
  • An advancing force FV applied by the advancing spring device 6 is directed against the direction of movement of the armature 3. It is smaller than a driving force FM, which is also directed against the direction of movement of the armature 3 and is applied by the entrainment spring device 7.
  • the armature 3 is therefore first deflected by the drive coil 2 by a flow path sV. To pass through the supply path sV of the drive coil 2, only the supply force FV must be overcome. Since the advance force FV is smaller than the driving force FM, the actuating element 4 is not deflected during the passage of the flow path sV. This remains in its elementary rest position ER.
  • the armature 3 is moved against a lower actuator stop 12, which is arranged on the actuating element 4. Due to the driving of the armature 3 against the lower actuator stop 12 and the actuator 4 is deflected in an element actuation position EB in the further deflection of the armature 3 in an armature actuation position AB.
  • the driving force FM must be overcome.
  • the deflection of the actuating element 4 thus causes an actuation of a contact, which is formed by the contact bridge 5 together with contact pieces 13 on the one hand and the mating contacts 14 on the other.
  • a contact which is formed by the contact bridge 5 together with contact pieces 13 on the one hand and the mating contacts 14 on the other.
  • the contact pieces 13 in vacuum containers 15 are lowered onto the mating contacts 14.
  • the vacuum containers 15 have at least one section 16, within which they are variable in length. Due to the arrangement of the contact pieces 13 and the mating contacts 14 in vacuum containers 15, the contact is a vacuum contact.
  • the contactor is thus a vacuum contactor.
  • FIG. 3 shows first schematically the course of force which the drive coil 2 has to overcome on the basis of the attraction current 1.
  • the flow force FV must be overcome, which increases slightly along the flow path sV.
  • the driving force FM must be overcome, which also increases along the driving path sM.
  • the sum of driving force FM and compressive force FD must be overcome.
  • the advance force FV is less than the driving force FM. As a rule, it is 10% to 50% of the driving force FM.
  • the ratio of supply force FV to driving force FM is therefore usually 1:10 to 1: 2.
  • the advance force FV is between 20% and 25% of the driving force FM. The ratio is therefore preferably between 1: 5 and 1: 4.
  • the flow path sV is usually 25% to 75% of the total distance the anchor 3 passes through. It is usually between 40% and 60% of the total route.
  • the ratio of flow path sV to driving path sM is therefore usually between 1: 3 and 3: 1, usually between 2: 3 and 3: 2.
  • the driving force FM is essentially determined by the dimensions of the vacuum contact - or at several contacts to be switched contacts the vacuum contacts.
  • the supply force FV is in principle freely selectable. It is therefore particularly possible to dimension the advance force FV similar to an air contactor of the same power.
  • the driving path sM is essentially determined by the dimensioning of the vacuum contactor.
  • the flow path sV can be freely selected again.
  • the flow path sV can be selected such that the sum of the flow path sV and the driving path sM corresponds to the distance by which the armature and the actuating element of a comparable air contactor are displaced.
  • the drive coil 2 can be designed as in a comparable air contactor.
  • a perfect tilting behavior of the vacuum contactor can be achieved.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electromagnets (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Claims (8)

  1. Contacteur à vide comprenant un boitier de contact (1), une bobine d'entraînement (2), une palette mobile (3), un élément d'actionnement (4) et au moins un contact sous vide,
    - dans lequel la bobine d'entraînement (2), lorsqu'elle est alimentée avec un courant d'actionnement (IA), déplace la palette mobile (3) d'une position de repos (AR) de la palette à une position d'actionnement (AB) de la palette,
    - dans lequel sous l'effet du déplacement de la palette mobile (3), l'élément d'actionnement (4) est déplacé d'une position de repos (ER) de l'élément à une position d'actionnement (EB) de l'élément,
    - dans lequel le déplacement de l'élément d'actionnement (4) produit une fermeture dudit au moins un contact sous vide,
    - dans lequel lors du déplacement de la palette mobile (3) de la position de repos (AR) de la palette à la position d'actionnement (AB) de la palette, la palette mobile (3) parcourt tout d'abord un trajet d'amorçage (sV) et ensuite un trajet d'entraînement (sM),
    - et dans lequel l'élément d'actionnement (4) n'est déplacé par la palette mobile (3) que pendant le parcours du trajet d'entraînement (sM),
    caractérisé en ce que pour une alimentation de la bobine d'entraînement (2) avec un courant en-dessous du courant d'actionnement (IA), l'élément d'actionnement (4), dans tous les cas, soit reste dans la position de repos (ER) de l'élément, soit est totalement déplacé dans la position d'actionnement (EB) de l'élément.
  2. Contacteur à vide selon la revendication 1,
    caractérisé en ce que le rapport du trajet d'amorçage (sV) au trajet d'entraînement (sM) est compris entre 1:3 et 3:1.
  3. Contacteur à vide selon la revendication 2,
    caractérisé en ce que le rapport du trajet d'amorçage (sV) au trajet d'entraînement (sM) est compris entre 2:3 et 3:2.
  4. Contacteur à vide selon la revendication 1, 2 ou 3,
    caractérisé en ce que la palette mobile (3) est déplacée par la bobine d'entraînement (2), pendant le parcours du trajet d'amorçage (sV) à l'encontre d'une force d'amorçage (FV), et pendant le parcours du trajet d'entraînement (sM) à l'encontre d'une force d'entraînement FM), et en ce que la force d'amorçage (FV) est plus petite que la force d'entraînement (FM).
  5. Contacteur à vide selon la revendication 4,
    caractérisé en ce que le rapport de la force d'amorçage (FV) à la force d'entraînement (FM) est compris entre 1:10 et 1:2.
  6. Contacteur à vide selon la revendication 5,
    caractérisé en ce que le rapport de la force d'amorçage (FV) à la force d'entraînement (FM) est compris entre 1:5 et 1:4.
  7. Contacteur à vide selon la revendication 4, 5 ou 6,
    caractérisé en ce que la force d'amorçage (FV) est appliquée par un dispositif de ressort d'amorçage (6), et la force d'entraînement (FM) par un dispositif de ressort d'entraînement (7), en ce que le dispositif de ressort d'amorçage (6) s'appuie d'une part sur la palette mobile (3) et d'autre part sur l'élément d'actionnement (4), et en ce que le dispositif de ressort d'entraînement (7) s'appuie d'une part sur l'élément d'actionnement (4) et d'autre part sur le boîtier de contacteur (1).
  8. Contacteur à vide selon l'une des revendications précédentes,
    caractérisé en ce que l'élément d'actionnement (4) présente une butée (12) contre laquelle est amenée la palette mobile (3) lors du déplacement hors de la position de repos (AR) de la palette.
EP00979409A 1999-10-05 2000-10-05 Contacteur a vide Expired - Lifetime EP1218905B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19947836A DE19947836C1 (de) 1999-10-05 1999-10-05 Vakuumschütz
DE19947836 1999-10-05
PCT/DE2000/003504 WO2001026127A1 (fr) 1999-10-05 2000-10-05 Contacteur a vide

Publications (2)

Publication Number Publication Date
EP1218905A1 EP1218905A1 (fr) 2002-07-03
EP1218905B1 true EP1218905B1 (fr) 2006-12-06

Family

ID=7924490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00979409A Expired - Lifetime EP1218905B1 (fr) 1999-10-05 2000-10-05 Contacteur a vide

Country Status (5)

Country Link
US (1) US6747232B1 (fr)
EP (1) EP1218905B1 (fr)
CN (1) CN1192408C (fr)
DE (2) DE19947836C1 (fr)
WO (1) WO2001026127A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH169467A (de) * 1933-05-20 1934-05-31 Regulator G M B H Birka Vakuumschalter mit elektromagnetischer Betätigungseinrichtung.
GB1432372A (en) * 1972-07-26 1976-04-14 Lucas Electrical Ltd Solenoid operated switch assemblies
DE3218907A1 (de) * 1982-05-19 1983-11-24 Sachsenwerk, Licht- und Kraft-AG, 8000 München Verfahren und anordnung zum schalten von vakuum-schaltern
JPH07211202A (ja) * 1994-01-20 1995-08-11 Hitachi Ltd 真空接触器
JP3441360B2 (ja) * 1997-03-25 2003-09-02 株式会社東芝 しゃ断器の操作装置
JP2000268683A (ja) * 1999-01-14 2000-09-29 Toshiba Corp 開閉器の操作装置
US6156989A (en) * 1999-09-30 2000-12-05 Rockwell Technologies, Llc Multi-phase vacuum switch arrangement including an electromagnet actuating mechanism

Also Published As

Publication number Publication date
CN1192408C (zh) 2005-03-09
CN1378696A (zh) 2002-11-06
EP1218905A1 (fr) 2002-07-03
DE50013837D1 (de) 2007-01-18
WO2001026127A1 (fr) 2001-04-12
US6747232B1 (en) 2004-06-08
DE19947836C1 (de) 2001-07-05

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