EP1345246A2 - Dispositif de déclenchement pour un disjoncteur différentiel et méthode de fabrication - Google Patents

Dispositif de déclenchement pour un disjoncteur différentiel et méthode de fabrication Download PDF

Info

Publication number
EP1345246A2
EP1345246A2 EP03003802A EP03003802A EP1345246A2 EP 1345246 A2 EP1345246 A2 EP 1345246A2 EP 03003802 A EP03003802 A EP 03003802A EP 03003802 A EP03003802 A EP 03003802A EP 1345246 A2 EP1345246 A2 EP 1345246A2
Authority
EP
European Patent Office
Prior art keywords
passivation layer
circuit breaker
residual current
current circuit
trigger
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.)
Withdrawn
Application number
EP03003802A
Other languages
German (de)
English (en)
Other versions
EP1345246A3 (fr
Inventor
Patrick Claeys
Rolf Dr. Disselnkötter
Andreas Dr. Kahnert
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 EP1345246A2 publication Critical patent/EP1345246A2/fr
Publication of EP1345246A3 publication Critical patent/EP1345246A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/327—Manufacturing or calibrating methods, e.g. air gap treatments

Definitions

  • the invention relates to a tripping device for a residual current circuit breaker, and a method for their production, according to the preamble of claims 1, 14 and 15.
  • an actuator or trigger a magnetic circuit-based trigger with permanent magnets to use.
  • the first rest position generated by a permanent magnet, a magnetic flux and the resultant holding force on a movably mounted component, such as. a movably mounted plunger or anchor, which thereby against the force of a spring in a first switching position against a stationary one Component is held.
  • a Coil generates a magnetic flux that corresponds to the magnetic flux of the permanent magnet counteracts, which reduces the magnetic holding force and the movable plunger or anchor by the force of the spring from the fixed one
  • the component is detached and moved into a second release position in which the plunger or anchor then unlocks a key switch.
  • Embodiments that are used very frequently have an open magnetic circuit a movable element in the form of a hinged anchor.
  • You have a magnetic one Yoke, mostly U-shaped, with a coil around one leg is wound, and on which there is a permanent magnet.
  • the two ends of the Yokes are covered by an anchor which is rotatably mounted about an axis.
  • EP 1 063 666 Another possible embodiment for a magnetic release is known from EP 1 063 666 known.
  • the yoke is in the form of a pot, in which the permanent magnet system and - concentrically on the inner wall of the Fitting the pot - the coil is in place.
  • the permanent magnet system is with the Connected to the bottom of the pot and contains pole shoes that comprise a plunger that opposes it the force of a spring from the permanent magnet against the bottom of the pot is pulled.
  • the fault current in the coil turns a magnetic one Generates flux that counteracts the permanent magnetic flux and this compensated so far that the plunger is pulled off the bottom of the pot by the force of the spring and is moved into the release position, in which then by the plunger Key switch is unlocked.
  • Grasp the pole shoes and the lid of the pot the plunger in the manner of a plain bearing, whereby the plunger in its direction of movement to be led.
  • the movable components are hinged anchors or plungers the contact points with the fixed components U-shaped yoke or cup-shaped Glue the yoke together, which means that the force of the spring is not in the event of a fault current is sufficient to move the movable component from the rest position into the release position move, the residual current circuit breaker fails and the protective function does not is guaranteed.
  • Possible causes for the contact points sticking are Formation of adhesive layers between the contact surfaces on the fixed and movable component due to corrosion at the metallic contact points due to the deposition of water or due to the accumulation of dirt particles, such as. Dust or metallic abrasion, or due to the accumulation of an oil, Fat or lubricant layer, especially silicone layer, or due to the accumulation a layer of liquid and thus increasing the surface tension in the Contact gap.
  • Air gap over which the magnetic flux of the permanent magnet is guided and its Extension for the safe functioning of the trigger a critical size is. It results from the surface roughness of the fixed and movable components at the contact surface and is on the order of a few ⁇ m, typically it is 2 -3 ⁇ m. In order not to reduce the magnetic adhesive force too much, The expansion of the air gap may take additional constructive measures only by at most a fraction of their original extent, i.e. typically less than 1 ⁇ m.
  • the contact points are used today fixed and movable components with corrosion protection layers made of metal or precious metal.
  • Preferred materials for this are according to the prior art Technique nickel, gold or silver.
  • nickel, gold or silver since these layers are non-magnetic and thus the same effect for the magnetic circuit as increasing the expansion of the Air gap, they may be applied in a thickness of 1 - 2 ⁇ m become.
  • nickel, gold or silver layers there are no dense layers, so that the protection against corrosion is only incomplete given is.
  • the residual current circuit breakers with magnetic triggers according to the prior art The contact points of the residual current release are liable to stick, which increases the reliability of the tripping is reduced in the event of a fault current.
  • the invention is therefore based on the object of a magnetic release device to further develop and manufacture for a residual current circuit breaker, that the contact points are significantly less prone to sticking and thus the tripping reliability of the residual current circuit breaker is significantly increased.
  • the essence of the invention is that to increase the triggering reliability Butt or sliding contact points on the fixed or on the movable component with a dense passivation layer resistant to water, oils, greases and silicones, are coated, the thickness of which is a fraction of the extent of the working air gap and is typically on the order of 10 to 500 nm.
  • the passivation layer is present made of hydrophobic material.
  • Hydrophobic material is water-repellent. The advantage when using hydrophobic material is that water drops cannot get stuck on the surface or in the air gap and therefore also there is no adhesive force caused by increased surface tension can. Because water due to the hydrophobic surface properties of the passivation layer cannot adhere to the surface but runs off immediately also removes dirt particles adhering to the surface.
  • the passivation layer consists of corrosion-resistant Material.
  • the passivation layer consists of reduced adhesive material, so that when detaching the movable from the fixed Component no high adhesive force has to be overcome.
  • the passivation layer consists of oil and dirt repellent material.
  • the surface of the Passivation layer nanostructured and designed like a lotus leaf surface. It is known from the lotus leaf surface that microstructures in the micrometer and nanometer range almost completely eliminates the adhesiveness on the surfaces. That means even pasty, otherwise strongly adhering substances such as oils, fats and silicones, cannot adhere permanently to this surface.
  • the passivation layer consists of a nanocomposite material.
  • nanocomposites are composite materials by a chemical or physical bond of at least consist of two different materials, at least one of the materials in the form of particles that are no larger than a few nanometers.
  • Nanocomposites can either be purely inorganic materials, e.g. on Composite of silicon carbide nanoparticles in a matrix of silicon nitride, or a Composite of inorganic nanoparticles in a matrix of polymer materials, such as. Silicate nanoparticles in a polyamide matrix. In the latter case speaks one also of nanomers. Due to the special type of composition and the Material properties are achieved using nanometer-sized particles, which are far superior to conventional and pure materials, especially what the tightness, corrosion resistance, strength and other chemical and physical resistance.
  • the passivation layer is made of Teflon.
  • the passivation layer consists of metal-ceramic material.
  • a material example from this class are the so-called 123 ceramics, such as Ti 3 SiC 2 , which is characterized by excellent temperature stability, low adhesiveness and high chemical resistance.
  • the passivation layer can also be made of metal nitride or Metal carbide exist.
  • the passivation layer consists of silicon nitride.
  • the passivation layer consists of amorphous carbon or diamond-like carbon.
  • the passivation layer is defect-free, in particular pinhole-free is trained.
  • the essence of the invention is that to increase the reliability of tripping the butt or sliding contact points on the fixed or to the movable component with a tight, against water, oils, Grease and silicone resistant passivation layer, the thickness of which is a fraction the expansion of the working air gap by separation after a sol-gel Process.
  • Very thin, dense can be particularly advantageously used with the sol-gel technique Create layers from nanomers.
  • Material examples for the inorganic nanoparticles are silicates or titanates, from which initially an emulsion with the polymer Matrix material is formed. Applying the emulsion to the desired one Partial surface of the component can be immersed, spin-coated or Spraying happen, taking those parts of the component that are not coated should be masked beforehand so that no material is deposited there. As a result, the use of the nanomeric layer material is restricted to functionally important points of the component, which is a very economical handling allowed with the possibly very expensive special materials. After applying the Emulsion, the coating is polymerized, which is either UV-induced, thermally or plasma-assisted. When polymerizing forms the special, lotus leaf-like, nanostructured surface structure also emerges.
  • the essence of the invention lies in the alternative production method according to claim 15 in that to increase the tripping reliability the shock or Sliding contact points on the fixed or on the movable component a dense passivation layer resistant to water, oils, greases and silicones, the thickness of which is a fraction of the extent of the working air gap, be provided by separation from the gas phase.
  • the passivation layer consists of amorphous or diamond-like carbon by making the carbon plasma-assisted from the Gas phase is deposited.
  • the passivation layer consists of a metal-ceramic material, in that the metal-ceramic is sputtered or vapor-deposited entirely or at least in a chemical component.
  • a metal-ceramic material in that the metal-ceramic is sputtered or vapor-deposited entirely or at least in a chemical component.
  • 123 ceramics such as Ti 3 SiC 2 , which is characterized by excellent temperature stability, low adhesiveness and high chemical resistance.
  • the passivation layer consists of a metal nitride or Metal carbide consists of the metal nitride or the metal carbide entirely or at least sputtered or evaporated in a chemical component.
  • the passivation layer consists of Teflon by Teflon plasma-assisted polymerizes from the gas phase is deposited.
  • FIG. 1 shows a magnetic residual current release with a hinged armature, whose contact points are coated.
  • Figure 1 shows a magnetic residual current release 1 with a yoke 20, which in U-shape is formed.
  • a yoke 20 Around one leg 22 of the yoke 20 is a coil 50 wrapped.
  • the two end pieces 23 of the yoke 20 are covered by an anchor 40, the end piece of the leg, which carries the coil 50, only in part is covered.
  • the Working air gaps 22, the expansion of which is due to the surface roughness of the anchor and yoke is given at the contact points and on the order of some ⁇ m, is typically 2-3 ⁇ m.
  • the anchor 40 In the area of contact points between anchors 40 and yoke 20 is the anchor 40 with a dense, against water, oils, greases and Silicon resistant passivation layer 70 coated, which is so thin that it does not significantly increase the working air gap, i.e. it only extends a fraction of the air gap expansion and is significantly smaller than 1 ⁇ m.
  • the coating 70 is not exclusively a planar layer is applied, but the end piece of the anchor 40 in its three-dimensional Form densely covered, that is, also around the edge, around a corrosive To prevent attack on the contact point from the front of the anchor, this, however, only in the area of the contact point between anchor 40 and yoke 20.
  • anchor 40 is layer-free, which means the required amount of coating material is reduced to the bare minimum and a very economical one Use of the possibly very expensive material is guaranteed.
  • the anchor 40 is rotatably or hinged about an axis 41.
  • On the other leg 24 of the yoke 20 is a permanent magnet system 30 consisting of the Permanent magnet 31 and a pole piece 32.
  • the one pole of the permanent magnet 31 is connected to the free leg 24 of the yoke 20, the other pole with the pole piece 32.
  • the pole piece 32 is also with the free leg 24 of the yoke 20 connected so that the magnetic flux of the permanent magnet 31 to is largely short-circuited via the pole shoe 32 and only a small part over the armature 40, the yoke 20 and over the air gaps 22. So that is magnetic attraction with which the armature 40 is pulled against the yoke 20 will not be very large.
  • a spring 60 engages the second end firmly connected to the pole shoe 32 of the permanent magnet system Yoke 20 is connected. At rest, the magnetic attraction of the Permanent magnet system 30 on the armature 40 just large enough that the armature against the restoring force of the spring 60 is attracted to the free ends of the yoke 20 remains.
  • the fault current in the coil 50 becomes a magnetic one Flux generated
  • the magnetic flux in the yoke 20 and armature 40 formed Counteracts magnetic circuit and compensates it so far that the magnetic Holding force of the yoke 20 on the hinged anchor 40 is reduced so far that the Folding anchor 40 is pulled off the ends 23 of the yoke 20 by the force of the spring 60 becomes. It is moved into a release position - not shown here - in which then through the hinged anchor 40 a - also not shown here - key switch is unlocked.
  • the advantage of the dense against water Oils, greases and silicones are resistant passivation layers 70.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP03003802A 2002-03-12 2003-02-20 Dispositif de déclenchement pour un disjoncteur différentiel et méthode de fabrication Withdrawn EP1345246A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002110826 DE10210826A1 (de) 2002-03-12 2002-03-12 Auslöseeinrichtung für einen Fehlerstromschutzschalter und Verfahren zu dessen Herstellung
DE10210826 2002-03-12

Publications (2)

Publication Number Publication Date
EP1345246A2 true EP1345246A2 (fr) 2003-09-17
EP1345246A3 EP1345246A3 (fr) 2003-10-15

Family

ID=27762876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003802A Withdrawn EP1345246A3 (fr) 2002-03-12 2003-02-20 Dispositif de déclenchement pour un disjoncteur différentiel et méthode de fabrication

Country Status (2)

Country Link
EP (1) EP1345246A3 (fr)
DE (1) DE10210826A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021022A1 (de) 2009-05-13 2010-11-18 Siemens Aktiengesellschaft Schutzschaltgerät, insbesondere Fehlerstromschutzschalter oder Leitungsschutzschalter
CN102651293A (zh) * 2011-02-25 2012-08-29 Ls产电株式会社 断路器
CN118053708A (zh) * 2024-04-16 2024-05-17 国网山西省电力公司太原供电公司 高压试验用人员保护装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755645A1 (de) * 1977-12-14 1979-06-21 Schutzapparate Paris & Co Verfahren zum erzeugen einer hohen empfindlichkeit und zum stabilisieren der empfindlichkeit eines ausloesers und ausloeser vorzugsweise haltemagnetausloeser
EP0293702A1 (fr) * 1987-05-29 1988-12-07 DODUCO GMBH + Co Dr. Eugen DÀ¼rrwächter Déclencheur électromagnétique pour un disjoncteur de courant de fuite
EP0301935A1 (fr) * 1987-07-28 1989-02-01 Merlin Gerin Déclencheur électromagnétique à haute sensibilité et son procédé de fabrication
DE19746885A1 (de) * 1997-10-23 1999-06-24 Inst Neue Mat Gemein Gmbh Nanostrukturierte Formkörper und Schichten sowie Verfahren zu deren Herstellung
DE19917366A1 (de) * 1999-04-16 2000-10-19 Inst Neue Mat Gemein Gmbh Mit einer mikrostrukturierten Oberfläche versehene Substrate, Verfahren zu ihrer Herstellung und ihre Verwendung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6921547U (de) * 1969-05-29 1969-09-25 Bbc Brown Boveri & Cie Elektromagnetischer ausloeser
DE2529221C2 (de) * 1975-07-01 1983-12-15 Schupa-Elektro-GmbH + Co KG, 5885 Schalksmühle Hochempfindlicher, permanentmagnetischer Auslöser für Fehlerstromschutzschalter u.dgl.
DE2834036A1 (de) * 1978-08-03 1980-02-21 Licentia Gmbh Elektromagnetisches ausloeserelais
DE3410596A1 (de) * 1984-03-22 1985-09-26 Siemens Ag Elektromagnetischer ausloeser fuer fehlerstromschutzschalter
ES2011457B3 (es) * 1985-12-13 1990-01-16 Cmc Carl Maier + Cie Ag Desconexion de iman para interruptores de proteccion de corriente de defecto
FR2754933B1 (fr) * 1996-10-23 1998-11-27 Schneider Electric Sa Relais de declenchement electromagnetique a revetement de carbone amorphe, et son procede de fabrication
DE29801584U1 (de) * 1998-01-30 1998-04-16 Siemens Ag Elektromagnetisches Auslöserelais, insbesondere für Fehlerstromschutzeinrichtungen
DE10026813B4 (de) * 1999-06-24 2006-01-19 Abb Patent Gmbh Elektromagnetischer Auslöser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755645A1 (de) * 1977-12-14 1979-06-21 Schutzapparate Paris & Co Verfahren zum erzeugen einer hohen empfindlichkeit und zum stabilisieren der empfindlichkeit eines ausloesers und ausloeser vorzugsweise haltemagnetausloeser
EP0293702A1 (fr) * 1987-05-29 1988-12-07 DODUCO GMBH + Co Dr. Eugen DÀ¼rrwächter Déclencheur électromagnétique pour un disjoncteur de courant de fuite
EP0301935A1 (fr) * 1987-07-28 1989-02-01 Merlin Gerin Déclencheur électromagnétique à haute sensibilité et son procédé de fabrication
DE19746885A1 (de) * 1997-10-23 1999-06-24 Inst Neue Mat Gemein Gmbh Nanostrukturierte Formkörper und Schichten sowie Verfahren zu deren Herstellung
DE19917366A1 (de) * 1999-04-16 2000-10-19 Inst Neue Mat Gemein Gmbh Mit einer mikrostrukturierten Oberfläche versehene Substrate, Verfahren zu ihrer Herstellung und ihre Verwendung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BARTHLOTT W ET AL: "PURITY OF THE SACRED LOTUS, OR ESCAPE FROM CONTAMINATION IN CONTAMINATION IN BIOLOGICAL SURFACES" PLANTA, SPRINGER VERLAG, DE, Bd. 202, 1997, Seiten 1-8, XP000925073 ISSN: 0032-0935 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009021022A1 (de) 2009-05-13 2010-11-18 Siemens Aktiengesellschaft Schutzschaltgerät, insbesondere Fehlerstromschutzschalter oder Leitungsschutzschalter
DE102009021022B4 (de) * 2009-05-13 2018-02-22 Siemens Aktiengesellschaft Schutzschaltgerät, insbesondere Fehlerstromschutzschalter oder Leitungsschutzschalter
CN102651293A (zh) * 2011-02-25 2012-08-29 Ls产电株式会社 断路器
CN102651293B (zh) * 2011-02-25 2014-10-29 Ls产电株式会社 断路器
CN118053708A (zh) * 2024-04-16 2024-05-17 国网山西省电力公司太原供电公司 高压试验用人员保护装置

Also Published As

Publication number Publication date
DE10210826A1 (de) 2003-09-25
EP1345246A3 (fr) 2003-10-15

Similar Documents

Publication Publication Date Title
DE10026813B4 (de) Elektromagnetischer Auslöser
DE69404089T2 (de) Ventil
DE102008011573A1 (de) Elektromagnetischer Aktuator und Ventil
DE102007032568A1 (de) Magnetverbinder
DE19521323A1 (de) Teil mit einer galvanisch aufgebrachten Beschichtung und Verfahren zur Herstellung von galvanischen Schichten
DE3882099T2 (de) Hochempfindlicher elektromagnetischer Auslöser und dessen Herstellung.
DE3133039A1 (de) "temperaturempfindlicher schalter"
EP1345246A2 (fr) Dispositif de déclenchement pour un disjoncteur différentiel et méthode de fabrication
WO2013127377A1 (fr) Interrupteur protégé contre la poussière et l'eau
DE202008003137U1 (de) Elektromagnetische Stellvorrichtung
DE2755645A1 (de) Verfahren zum erzeugen einer hohen empfindlichkeit und zum stabilisieren der empfindlichkeit eines ausloesers und ausloeser vorzugsweise haltemagnetausloeser
EP3401731B1 (fr) Matrice pourvue d'une structure d'impression ainsi que procédé de fabrication de ladite matrice
DE69727278T2 (de) Elektromagnetischen Auslöser mit einer amorphen Kohlenstoffbeschichtung und sein Fertigungsverfahren
DE102018215765A1 (de) Elektromagnetischer Auslöser für elektromagnetische Schaltgeräte
DE10113316A1 (de) Herstellverfahren für Magnetanker
WO2016082981A1 (fr) Injecteur de gaz à surfaces de contact perfectionnées
DE102012204753A1 (de) Verfahren zur Herstellung eines Magnetventils
WO2005045290A1 (fr) Soupape servant a commander le passage de fluides, comportant un element multifonctionnel
DE102014224798A1 (de) Kontakteinheit und elektromechanische Schaltvorrichtung
DE3719946C2 (fr)
DE102012222739A1 (de) Verfahren zum Herstellen eines Bauteilverbunds und Bauteilverbund
DE69217442T2 (de) Herstellungsverfahren für einen Magnetauslöser mit eingegossenem Schlagbolzen und danach hergestellter Auslöser
DE102012205738A1 (de) Spule mit mediendichter Ummantelung
DE102015226189A1 (de) Ankerhubbestimmung durch Messung magnetischer Hysteresekurven
DE1564594C (de) Prellfrei arbeitende elektrische Kontaktvorrichtung für Relais

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

17P Request for examination filed

Effective date: 20040326

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

17Q First examination report despatched

Effective date: 20040903

17Q First examination report despatched

Effective date: 20040903

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090116