EP3349230B1 - Arc extinguishing chamber for a protective switch and a protective switch for extinguishing arcing - Google Patents

Arc extinguishing chamber for a protective switch and a protective switch for extinguishing arcing Download PDF

Info

Publication number
EP3349230B1
EP3349230B1 EP18159196.7A EP18159196A EP3349230B1 EP 3349230 B1 EP3349230 B1 EP 3349230B1 EP 18159196 A EP18159196 A EP 18159196A EP 3349230 B1 EP3349230 B1 EP 3349230B1
Authority
EP
European Patent Office
Prior art keywords
arc chamber
pole plate
arc
contactor
contact
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
EP18159196.7A
Other languages
German (de)
French (fr)
Other versions
EP3349230A1 (en
Inventor
Andrej Ignatov
Korbinian Kreuzpointner
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.)
Schaltbau GmbH
Original Assignee
Schaltbau 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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP3349230A1 publication Critical patent/EP3349230A1/en
Application granted granted Critical
Publication of EP3349230B1 publication Critical patent/EP3349230B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H33/182Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/04Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342Venting arrangements for arc chutes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346Details concerning the arc formation chamber
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the invention relates to a quenching chamber for a contactor, the quenching chamber comprising at least one contact point with a fixed contact, at least one quenching device, and a blowing device for generating a magnetic blowing field, which blows arcs in the quenching device, wherein the blowing device at least one adjacent to the contact point arranged Permanent magnet for generating a permanent magnetic Blasfelds and / or at least one adjacent to the contact point arranged coil for generating an electromagnetic blowing field, so that an emerging when opening the contact point arc is blown into the, at least one, extinguishing device, wherein at least two magnetically conductive pole plates with intermediate storage of the permanent magnet and / or the coil are arranged parallel to one another, so that the blowing effect is achieved by magnetic fields for guiding the arcs in the area provided for this purpose.
  • Such a quenching chamber is known from the prior art, for example from the EP 2 230 678 A2 known.
  • a quenching chamber contains wearing parts, which must be checked frequently and replaced if necessary.
  • such a quenching chamber with a permanent magnet and / or a coil is very heavy and thus must be mechanically connected to a base part.
  • At least one of the pole plates is designed as a pivotable latch, by means of which the quenching chamber in an unlocked state of a base part of a contactor is detachably and positively connected in a locked state with the base part of the contactor.
  • the pivotable pole plate has on the side facing the base part a hook or a projection, while the base part has a corresponding pin or a recess.
  • the quenching chamber may in particular comprise an insulating housing, wherein the pole plate is arranged outside of the housing, so that the pole plate although magnetically not electrically coupled to the live parts in the housing. Due to the size and stability of the pole plates, the strength of the lock is guaranteed without additional parts.
  • a locking lever with the pivotable pole plate is eccentrically pivotally connected and held by a holder such that a pivoting movement of the pole plate leads to a translational movement of the locking lever.
  • the pivot axis of the pole plate is spaced from the pivot axis of the locking lever, and thus provided eccentrically.
  • the locking lever is pivotally connected at one end to the pole plate and held at the opposite, free end by the holder, which includes a movable safety latch, which in the locked state of the pole plate by a spring element in a locked position is pressed over the free end, so that the translational movement of the locking lever and thus also the pivoting movement of the pole plate is prevented by the safety lock.
  • the holder may preferably be formed integrally on a housing half and with this.
  • the free end is preferably the end facing away from the blowing device, so that the movable safety lock is easily accessible from the side facing away from the base part of the quenching chamber.
  • a display element attached to the locking lever is visible in the unlocked state and is not visible in the locked state.
  • the free end of the locking lever is marked in accordance with color, which is covered in a locked state due to the movable safety lock and thus not visible.
  • the pivotal movement of the pivotable pole plate in both directions is limited by a stop surface. This will ensure that the pivotable pole plate does not undesirably come in contact with other parts during assembly or inspection.
  • the blowing device comprises both at least one coil with a pivotable, first pole plate, and at least one permanent magnet with a torsion-resistant, second pole plate, wherein the first and the second pole plate separated from each other by an intermediate gap and mounted on a plane are,.
  • the pole plates are arranged in pairs in such a way that the coil between two pivotable pole plates and the permanent magnet between two rotationally fixed pole plates are arranged.
  • a stop surface is formed by the housing of the quenching chamber.
  • the quenching chamber on a heat sink, which is thermally conductively connected to the fixed contact.
  • mechanical contactors in contrast to semiconductor contactors, do not require a heat dissipating heat sink.
  • the thermal situation of mechanical contactors is usually kept in a frame by e.g. low limit powers are specified or contact plates are oversized.
  • the inventors have surprisingly found that a higher effective power of a contactor can be achieved without great effort, that a heat sink is attached to the previously known quenching chamber, which is thermally conductively connected to the fixed contact.
  • the fixed contact may in particular be sheet-shaped and thus have a large contact area in the switching area in the vicinity of the contact point. Thus, a cooling of the switching range can be achieved particularly efficient by the heat sink.
  • the extinguishing chamber further comprises an electrically insulating housing, wherein the fixed contact passes through the housing and thus forms an electrical connection, on which the heat sink is mounted.
  • the quenching device comprises an arc guide plate, wherein an air gap is provided in the vicinity of the contact point between the arc guide plate and the fixed contact, wherein a protective lining between the air gap and the permanent magnet and / or the coil is arranged and from the fixed contact extends to the arc guide plate, and wherein the protective cover is inserted in the direction of the extinguishing device and thus also interchangeable.
  • the protective cover is preferably under the arc guide from below, in the direction of the extinguishing device, be inserted.
  • the protective covering is fastened via a groove or a projection, which groove or projection extends perpendicular to the surfaces of the fixed contact.
  • the quenching chamber may further comprise a housing which has for receiving the permanent magnet or the coil inner boundary walls which are provided perpendicular to the side walls of the housing.
  • the protective shroud is attached via the groove or projection to such inner boundary walls and bounded in the direction of the magnetic blowing field or in the direction of the central axis of the coil or the south-north direction of the permanent magnet through the side walls of the housing.
  • ceramic e.g. Steatite or cordierite can be used as the material for the protective cover and / or the arc extinguishing elements to allow a simple design and a good protection against arc damage.
  • the present invention further relates to a contactor for DC and / or AC operation with at least one movable contact, wherein the contactor comprises a quenching chamber according to the invention according to one of the above aspects.
  • the contactor has a base part with a locking mechanism, which cooperates with the pivotable pole plate, so that the quenching chamber can be locked and unlocked with the base part.
  • Fig. 1 is a front view of a contactor 1 is shown.
  • the contactor 1 comprises a base part 3 with a drive 5 for driving movable contacts, which in Fig. 1 are not shown.
  • the quenching chamber 7 is constructed essentially mirror-symmetrically about a central axis 8 with two electrical connections 9a, 9b. Furthermore, the quenching chamber is also constructed symmetrically symmetrical, so that the illustrated front is identical to the back of the quenching chamber 7, not shown.
  • the quenching chamber 7 further comprises four pivotable pole plates 11 and four fixed pole plates 13, which are arranged on a housing 15 of the quenching chamber 7 in pairs at the front and back. Only two pivotable and two fixed pole plates 11a, b, 13a, b are shown.
  • a holder 19a is further formed by the housing 15 of the quenching chamber 7, wherein two locking levers 17a, b are held between a half-round support plate 21a and the housing 15 by the holder 19a such that a translational movement the locking lever 17a, b is made possible along its longitudinal axis.
  • the locking levers 17a, b are each pivotally mounted about a pivot axis 18a, b on the respective pivotable pole plates 11a, 11b.
  • the pivot axes 18 a, b of the locking levers 17 a, b are arranged in the vicinity of the central axis 8, while the pivot axes 12 a, b of the pivotable pole plates 11 a, b are respectively spaced from the central axis 8.
  • Each pivotable pole plate 11a, b has a laterally projecting actuating lever 23a, b, which is provided above the respective electrical connection 9a, b, so that the pivotable Pole plates 11a, b by the operating lever 23a, b can be easily operated.
  • pivotal movements of the left pivotable pole plate 11a in the clockwise and the right pivotable pole plate 11b are limited counterclockwise.
  • Fig. 2 shows an enlarged view of the locking mechanism, consisting essentially of the hooks 33a, b and the bolts 35a, b.
  • a quenching chamber 7 is shown according to a second embodiment, wherein the chamber 7 of a quenching chamber according to the first embodiment as in Fig. 1 and 2 shown essentially only differs in that two heat sink 37a, b are provided on the electrical terminals 9a, b.
  • Fig. 3 are those parts having identical or similar function as in the first embodiment, provided with identical reference numerals, so that the above description to Fig. 1 and 2 also applies to the second embodiment.
  • the heat sinks 37a, b each have a number of cooling fins 39, which are arranged along the circumferential direction of the heat sinks 37a, b.
  • a bolt designed as an electrical connection is received in each case in a central bore of the heat sinks 37a, b, so that the connection plane is increased by the thickness of the heat sinks 37a, b.
  • an elongated, square free surface is provided on the side remote from the base part, the upper side of the housing 15, so that lamellar arc extinguishing elements 41 are exposed upwards. Between the arc extinguishing elements 41 are a plurality of outlet openings 43 of flow channels shown, which are each formed between two adjacent arc extinguishing elements 41.
  • the housing 15 consists of two housing halves 15a, b, which are connected to each other via connecting bolts 45, each having an inner bore.
  • two brackets 19 a, b are provided, each with a support plate 21 a, b, with respect to Fig. 4 be explained in more detail.
  • each holder 19a, b initially comprises a semicircular holder plate 21a, b, which is fastened to the housing 15 by means of a screw with intermediate storage of the free ends of the locking levers 17a, b.
  • the support plate 21a, b is configured with two lateral lugs 47, so that the locking levers 17a, b are limited in the circumferential direction and freely movable substantially along its longitudinal axis.
  • the free end of the corresponding locking lever 17b protrudes beyond the upper edge of the housing 15 so that the user can easily determine the condition due to the specific color coding of the locking levers 17a, b.
  • the locking levers 17a, b In a locked state, the locking levers 17a, b extend only to the upper edge of the support plate 21a, b.
  • a movable safety latch 49a, b by a spring element, not shown in a locked position, namely of the in Fig. 4 shown position in the direction of the support plate 21 a, b pressed so that the movable safety latch 49 a, b covering the free ends of the locking lever 17 a, b.
  • an unwanted translational movement of the locking lever 17a, b prevented by the safety latch 49a, b.
  • Fig. 5 is a front sectional view of the interior of a contactor 1 according to the first embodiment shown.
  • the contactor 1 comprises two contact points 52, 53 each having a fixed contact 54, 55 and a respective movable contact 56, 57.
  • the movable contacts 56, 57 of the two contact points 52, 53 are arranged on a common contact bridge 58.
  • the contact bridge 58 can be moved by a magnetic drive and from a closed state of the contactor 1, in which the movable contacts 56, 57 touch the fixed contacts 54, 55 and thus the contact points 52, 53 are closed, are transferred in an open position. In the open position, the movable contacts 56, 57 are separated from the fixed contacts 54, 55. Because of the high Currents and high voltages that are switched with the contactor, arise when opening the contact points 52, 53 arcs 65, 66 between the respective fixed contacts 54, 55 and the associated movable contact 56, 57th
  • an arc guide plate 59, 60 Adjacent to the fixed contacts 54, 55, an arc guide plate 59, 60 is arranged at each contact point 52, 53, wherein the Lichtbogenleitbleche 59, 60 are each isolated by an air gap 61, 62 of the respective fixed contact 54, 55.
  • the Lichtbogenleitbleche 59, 60 are shaped so that they form between the contact points 52, 53 a Lichtbogenleitschacht 69 which is substantially perpendicular to the longitudinal extent of the contact bridge 58 and through which the arcs 65 or 66 (depending on the arc running direction) by means of the Blasfelder the permanent magnets 63, 64 and / or blowing coils 67, 68 are blown in the direction of a quenching device 74.
  • blowing coils 67, 68 are disposed substantially between the pivotable pole plates 11a, b, while the permanent magnets 63, 64 are disposed substantially between the fixed pole plates 13a, 13b.
  • the pole plates 11a, b, 13a, b are in Fig. 5 not shown.
  • a homogeneous blowing field is generated in each case, which efficiently blows the arcs 65, 66 into the extinguishing device 74.
  • a protective cover 75, 76 is arranged at each of the two contact points 52, 53 adjacent to the air gap 61, 62.
  • the protective linings 75, 76 are each arranged between the air gap 61, 62, the permanent magnets 63, 64, the fixed contacts 54, 55 and the arc guide plates 59, 60 and extend from the respective fixed contacts 54, 55 upwards to the respective arc guide plates 59, 60.
  • a closed space is formed by the protective linings 75, 76, the fixed contacts 54, 55 and the respective arc guide plates 59, 60, so that the permanent magnets 63, 64 and the blowing coils 67, 68 are protected from arcs and resulting plasma, when arcs 65, 66 penetrate into the confined space upon activation of the blow coils 67, 68.
  • each of the two cylindrical receptacles 77, 78 of the permanent magnets 63, 64 formed by the housing has a projection which extends in the direction of the magnetic blowing field or in the north-south direction. Direction of the permanent magnets 63, 64 extends.
  • the protective linings 75, 76 each have a groove 79, via which the protective linings 75, 76 are held on the receptacles 77, 78.
  • the protective panels 75, 76 are also inserted in the direction of the extinguishing device and interchangeable.
  • the protective coatings 75, 76 are formed of an arc-resistant material.
  • a ceramic material in particular steatite or cordierite, is used for this purpose. These materials have a certain porosity, so that they are relatively stable even at temperature shocks. This is particularly necessary because the arc temperature is up to 20000 K.
  • a plurality of arc extinguishing elements 41 are arranged in a lamellar. Between the arc extinguishing elements 41, flow channels which are to be explained in more detail are formed, which essentially extend upward in the vertical direction from the arc guide plates 59, 60. Thus, the air and optionally the plasma, which arise between the contacts 54, 55, 56, 57 and between the Lichtbogenleitblechen 59, 60 are blown into the flow channels, and thus cooled by the arc extinguishing elements 41.
  • Fig. 6 shows an enlarged view of the section VI Fig. 5 .
  • the arc-extinguishing elements 41 and the flow channels 82 are each subdivided into a scattering section 80 and an extinguishing section 81, wherein the scattering section 80 is separated from the extinguishing section 81 by two separating ribs 83, respectively.
  • a wedge 84 is provided in each case, which tapers from the separating webs 83 in the direction of the arc guide plates 60.
  • An air-deflecting recess is formed on the side surface of the arc-extinguishing element 41 via the separating webs 83.
  • a second air deflecting recess is also formed on the rear side, not shown, with the second recess extending in the opposite direction.
  • the arc extinguishing elements 41 are arranged side by side stacked, with two successive arc extinguishing elements 41 are mounted rotated by 180 ° to each other.
  • the arc-extinguishing elements 41 can be formed identically, forming two groups of scattering portions 80 in opposite directions.
  • deflecting recesses 87 deflecting webs 85 are each formed with a curvature, so that the air can be deflected more efficiently.
  • Fig. 7 is an enlarged partial perspective view of the scattering portion 80.
  • a change in cross section is formed by forming a depression 86 between the two separating webs 83.
  • the change in cross section serves to cool and redirect the air or the plasma more efficiently.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Die Erfindung betrifft eine Löschkammer für ein Schütz, wobei die Löschkammer mindestens eine Kontaktstelle mit einem Festkontakt, mindestens eine Löscheinrichtung, und eine Blasvorrichtung zum Erzeugen eines magnetischen Blasfelds umfasst, welches Lichtbögen in die Löscheinrichtung bläst, wobei die Blasvorrichtung mindestens einen benachbart zu der Kontaktstelle angeordneten Permanentmagneten zur Erzeugung eines permanentmagnetischen Blasfelds und/oder mindestens einer benachbart zur Kontaktstelle angeordneten Spule zur Erzeugung eines elektromagnetischen Blasfelds aufweist, so dass ein beim Öffnen der Kontaktstelle entstehender Lichtbogen in die, mindestens eine, Löscheinrichtung geblasen wird, wobei mindestens zwei magnetisch leitfähige Polplatten unter Zwischenlagerung des Permanentmagneten und/oder der Spule parallel zueinander angeordnet sind, so dass die Blaswirkung durch Magnetfelder zur Lenkung der Lichtbögen in dem dafür vorgesehenen Bereich erreicht wird.The invention relates to a quenching chamber for a contactor, the quenching chamber comprising at least one contact point with a fixed contact, at least one quenching device, and a blowing device for generating a magnetic blowing field, which blows arcs in the quenching device, wherein the blowing device at least one adjacent to the contact point arranged Permanent magnet for generating a permanent magnetic Blasfelds and / or at least one adjacent to the contact point arranged coil for generating an electromagnetic blowing field, so that an emerging when opening the contact point arc is blown into the, at least one, extinguishing device, wherein at least two magnetically conductive pole plates with intermediate storage of the permanent magnet and / or the coil are arranged parallel to one another, so that the blowing effect is achieved by magnetic fields for guiding the arcs in the area provided for this purpose.

Eine solche Löschkammer ist aus dem Stand der Technik, beispielsweise aus der EP 2 230 678 A2 bekannt. Eine Löschkammer enthält Verschleißteile, die häufig überprüft und gegebenenfalls ausgetauscht werden müssen. Ferner ist eine solche Löschkammer mit einem Permanentmagneten und/oder eine Spule sehr schwer und muss somit fest mit einem Basisteil mechanisch verbunden werden.Such a quenching chamber is known from the prior art, for example from the EP 2 230 678 A2 known. A quenching chamber contains wearing parts, which must be checked frequently and replaced if necessary. Furthermore, such a quenching chamber with a permanent magnet and / or a coil is very heavy and thus must be mechanically connected to a base part.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Löschkammer anzugeben, die leicht abnehmbar und gleichzeitig gegenüber dem Basisteil eines Schützes gut befestigbar ist.It is therefore an object of the present invention to provide a quenching chamber, which is easily removable and at the same time against the base part of a contactor is well fastened.

Das Problem wird dadurch gelöst, dass mindestens eine der Polplatten als schwenkbare Riegelung ausgebildet ist, mittels welcher die Löschkammer in einem entriegelten Zustand von einem Basisteil eines Schützes abnehmbar und in einem verriegelten Zustand mit dem Basisteil des Schützes formschlüssig verbindbar ist. Vorzugsweise weist die schwenkbare Polplatte an der dem Basisteil zugewandten Seite einen Haken oder einen Vorsprung auf, während das Basisteil einen entsprechenden Bolzen bzw. einen Rücksprung aufweist. Die Löschkammer kann insbesondere ein isolierendes Gehäuse aufweisen, wobei die Polplatte außerhalb des Gehäuses angeordnet ist, so dass die Polplatte zwar magnetisch jedoch nicht elektrisch mit den stromführenden Teilen in dem Gehäuse gekoppelt ist. Aufgrund der Größe und der Stabilität der Polplatten ist die Stärke der Verriegelung ohne zusätzliche Teile gewährleistet.The problem is solved in that at least one of the pole plates is designed as a pivotable latch, by means of which the quenching chamber in an unlocked state of a base part of a contactor is detachably and positively connected in a locked state with the base part of the contactor. Preferably, the pivotable pole plate has on the side facing the base part a hook or a projection, while the base part has a corresponding pin or a recess. The quenching chamber may in particular comprise an insulating housing, wherein the pole plate is arranged outside of the housing, so that the pole plate although magnetically not electrically coupled to the live parts in the housing. Due to the size and stability of the pole plates, the strength of the lock is guaranteed without additional parts.

Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung ist ein Verriegelungshebel mit der schwenkbaren Polplatte exzentrisch schwenkbar verbunden und durch eine Halterung derart gehalten, dass eine Schwenkbewegung der Polplatte zu einer translatorischen Bewegung des Verriegelungshebels führt. Dabei ist die Schwenkachse der Polplatte beabstandet von der Schwenkachse des Verriegelungshebels, und somit exzentrisch vorgesehen.According to a preferred embodiment of the present invention, a locking lever with the pivotable pole plate is eccentrically pivotally connected and held by a holder such that a pivoting movement of the pole plate leads to a translational movement of the locking lever. In this case, the pivot axis of the pole plate is spaced from the pivot axis of the locking lever, and thus provided eccentrically.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung ist der Verriegelungshebel an einem Ende mit der Polplatte schwenkbar verbunden und an dem gegenüberliegenden, freien Ende durch die Halterung gehalten, welche eine bewegliche Sicherheitsriegelung umfasst, die in dem verriegelten Zustand der Polplatte durch ein Federelement in eine verriegelte Position über das freie Ende gedrückt ist, so dass die translatorische Bewegung des Verriegelungshebels und somit auch die Schwenkbewegung der Polplatte durch die Sicherheitsriegelung verhindert ist. Die Halterung kann vorzugsweise an einer Gehäusehälfte und mit dieser einteilig ausgebildet sein. Das freie Ende ist vorzugsweise das der Blasvorrichtung abgewandte Ende, so dass die bewegliche Sicherheitsriegelung von der dem Basisteil abgewandten Seite der Löschkammer leicht zugänglich ist.According to another embodiment of the present invention, the locking lever is pivotally connected at one end to the pole plate and held at the opposite, free end by the holder, which includes a movable safety latch, which in the locked state of the pole plate by a spring element in a locked position is pressed over the free end, so that the translational movement of the locking lever and thus also the pivoting movement of the pole plate is prevented by the safety lock. The holder may preferably be formed integrally on a housing half and with this. The free end is preferably the end facing away from the blowing device, so that the movable safety lock is easily accessible from the side facing away from the base part of the quenching chamber.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung ist ein an dem Verriegelungshebel angebrachtes Anzeigeelement im entriegelten Zustand sichtbar und im verriegelten Zustand nicht sichtbar. Vorzugsweise ist das freie Ende des Verriegelungshebels entsprechend farbig gekennzeichnet, welches in einem verriegelten Zustand aufgrund der beweglichen Sicherheitsriegelung abgedeckt und somit nicht sichtbar ist.According to a further embodiment of the present invention, a display element attached to the locking lever is visible in the unlocked state and is not visible in the locked state. Preferably, the free end of the locking lever is marked in accordance with color, which is covered in a locked state due to the movable safety lock and thus not visible.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung ist die Schwenkbewegung der schwenkbaren Polplatte in beiden Richtungen jeweils durch eine Anschlagfläche begrenzt. Somit wird sichergestellt, dass die schwenkbare Polplatte während der Montage bzw. einer Inspektion nicht unerwünscht mit anderen Teilen in Berührung kommt.According to another embodiment of the present invention, the pivotal movement of the pivotable pole plate in both directions is limited by a stop surface. This will ensure that the pivotable pole plate does not undesirably come in contact with other parts during assembly or inspection.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung umfasst die Blasvorrichtung sowohl mindestens eine Spule mit einer schwenkbaren, ersten Polplatte, als auch mindestens einen Permanentmagneten mit einer verdrehfesten, zweiten Polplatte, wobei die erste und die zweite Polplatte voneinander durch einen Zwischenspalt separiert und auf einer Ebene montiert sind,. Vorzugsweise sind die Polplatten entsprechend paarweise derart angeordnet, dass die Spule zwischen zwei schwenkbaren Polplatten und der Permanentmagnet zwischen zwei verdrehfesten Polplatten angeordnet sind.According to a further embodiment of the present invention, the blowing device comprises both at least one coil with a pivotable, first pole plate, and at least one permanent magnet with a torsion-resistant, second pole plate, wherein the first and the second pole plate separated from each other by an intermediate gap and mounted on a plane are,. Preferably, the pole plates are arranged in pairs in such a way that the coil between two pivotable pole plates and the permanent magnet between two rotationally fixed pole plates are arranged.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung ist eine Anschlagfläche durch das Gehäuse der Löschkammer ausgebildet.According to another embodiment of the present invention, a stop surface is formed by the housing of the quenching chamber.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung weist die Löschkammer einen Kühlkörper auf, welcher mit dem Festkontakt thermisch leitend verbunden ist.According to a further embodiment of the present invention, the quenching chamber on a heat sink, which is thermally conductively connected to the fixed contact.

Zu dem Anmeldezeitpunkt besteht ein Vorurteil des Fachmannes, dass mechanische Schütze im Gegensatz zu Halbleiterschützen keinen wärmeableitenden Kühlkörper benötigen. Die thermische Situation mechanischer Schütze wird gewöhnlich dadurch in einem Rahmen gehalten, dass z.B. niedrige Grenzleistungen angegeben werden oder Kontaktbleche überdimensioniert werden. Die Erfinder haben jedoch überraschenderweise festgestellt, dass eine höhere Nutzleistung eines Schützes ohne großen Aufwand dadurch erreicht werden kann, dass an der bisher bekannten Löschkammer ein Kühlkörper angebracht wird, welcher mit dem Festkontakt thermisch leitend verbunden ist. Der Festkontakt kann insbesondere blechförmig ausgebildet und somit eine große Kontaktfläche in dem Schaltbereich in der Nähe der Kontaktstelle aufweisen. Somit kann eine Abkühlung des Schaltbereiches besonders effizient durch den Kühlkörper erzielt werden.At the time of filing, there is a prejudice of the skilled artisan that mechanical contactors, in contrast to semiconductor contactors, do not require a heat dissipating heat sink. The thermal situation of mechanical contactors is usually kept in a frame by e.g. low limit powers are specified or contact plates are oversized. However, the inventors have surprisingly found that a higher effective power of a contactor can be achieved without great effort, that a heat sink is attached to the previously known quenching chamber, which is thermally conductively connected to the fixed contact. The fixed contact may in particular be sheet-shaped and thus have a large contact area in the switching area in the vicinity of the contact point. Thus, a cooling of the switching range can be achieved particularly efficient by the heat sink.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung weist die Löschkammer ferner ein elektrisch isolierendes Gehäuse auf, wobei der Festkontakt das Gehäuse durchsetzt und somit einen elektrischen Anschluss ausbildet, an welchem der Kühlkörper montiert ist.According to a further embodiment of the present invention, the extinguishing chamber further comprises an electrically insulating housing, wherein the fixed contact passes through the housing and thus forms an electrical connection, on which the heat sink is mounted.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung weist die Löscheinrichtung ein Lichtbogenleitblech auf, wobei ein Luftspalt in der Nähe der Kontaktstelle zwischen dem Lichtbogenleitblech und dem Festkontakt vorgesehen ist, wobei eine Schutzverkleidung zwischen dem Luftspalt und dem Permanentmagneten und/oder der Spule angeordnet ist und sich von dem Festkontakt zu dem Lichtbogenleitblech hin erstreckt, und wobei die Schutzverkleidung in Richtung der Löscheinrichtung einschiebbar und somit auch austauschbar angeordnet ist. Insbesondere soll die Schutzverkleidung vorzugsweise unter das Lichtbogenleitstück von unten, in Richtung der Löscheinrichtung, einschiebbar sein.According to a further embodiment of the present invention, the quenching device comprises an arc guide plate, wherein an air gap is provided in the vicinity of the contact point between the arc guide plate and the fixed contact, wherein a protective lining between the air gap and the permanent magnet and / or the coil is arranged and from the fixed contact extends to the arc guide plate, and wherein the protective cover is inserted in the direction of the extinguishing device and thus also interchangeable. In particular, the protective cover is preferably under the arc guide from below, in the direction of the extinguishing device, be inserted.

Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung ist die Schutzverkleidung über eine Nut oder einen Vorsprung befestigt, welche Nut oder welcher Vorsprung sich senkrecht zu den Oberflächen des Festkontakts erstreckt. Die Löschkammer kann ferner ein Gehäuse aufweisen, welches zur Aufnahme des Permanentmagneten oder der Spule innere Begrenzungswände aufweist, die senkrecht zu den Seitenwänden des Gehäuses vorgesehen sind. Vorzugsweise ist die Schutzverkleidung über die Nut oder den Vorsprung an solchen inneren Begrenzungswänden befestigt und in Richtung des magnetischen Blasfeldes bzw. in der Richtung der Mittelachse der Spule oder der Süd-Nord-Richtung des Permanentmagneten durch die Seitenwände des Gehäuses begrenzt.According to a further embodiment of the present invention, the protective covering is fastened via a groove or a projection, which groove or projection extends perpendicular to the surfaces of the fixed contact. The quenching chamber may further comprise a housing which has for receiving the permanent magnet or the coil inner boundary walls which are provided perpendicular to the side walls of the housing. Preferably, the protective shroud is attached via the groove or projection to such inner boundary walls and bounded in the direction of the magnetic blowing field or in the direction of the central axis of the coil or the south-north direction of the permanent magnet through the side walls of the housing.

Vorzugsweise wird Keramik, z.B. Steatit oder Cordierit als Material für die Schutzverkleidung und/oder die Lichtbogenlöschelemente verwendet werden, um eine einfache Ausgestaltung und einen guten Schutz vor Lichtbogenschäden zu ermöglichen.Preferably, ceramic, e.g. Steatite or cordierite can be used as the material for the protective cover and / or the arc extinguishing elements to allow a simple design and a good protection against arc damage.

Die vorliegende Erfindung betrifft ferner ein Schütz für Gleichstrom- und/oder Wechselstrombetrieb mit mindestens einem beweglichen Kontakt, wobei das Schütz eine erfindungsgemäße Löschkammer nach einem der obigen Aspekte aufweist.The present invention further relates to a contactor for DC and / or AC operation with at least one movable contact, wherein the contactor comprises a quenching chamber according to the invention according to one of the above aspects.

Vorzugsweise weist der Schütz ein Basisteil mit einem Verriegelungsmechanismus auf, welcher mit der schwenkbaren Polplatte zusammenwirkt, so dass die Löschkammer mit dem Basisteil ver- und entriegelbar ist.Preferably, the contactor has a base part with a locking mechanism, which cooperates with the pivotable pole plate, so that the quenching chamber can be locked and unlocked with the base part.

Unterschiedliche Ausgestaltungen können vollständig oder in Bezug auf andere Merkmale miteinander kombiniert werden, auch kann eine Ausgestaltung durch weitere beschriebene Merkmale ergänzt werden.Different embodiments can be combined with each other completely or in relation to other features, and an embodiment can also be supplemented by further described features.

Im Folgenden wird die Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 Vorderansicht eines Schützes mit einer Löschkammer und einem Basisteil in verriegeltem Zustand gem. einem ersten Ausführungsbeispiel,
  • Fig. 2 vergrößerte Darstellung des Verriegelungsmechanismus,
  • Fig. 3 perspektivische Ansicht einer Löschkammer gem. einem zweiten Ausführungsbeispiel mit zwei Kühlkörpem,
  • Fig. 4 perspektivische Teilansicht mit zwei beweglichen Sicherheitsriegelungen,
  • Fig. 5 Schnittdarstellung eines Schützes gem. dem ersten Ausführungsbeispiel,
  • Fig. 6 vergrößerte Darstellung der Details VI aus Fig. 5, und
  • Fig. 7 vergrößerte perspektivische Teilansicht eines Lichtbogenlöschelements mit einem Streuabschnitt.
In the following the invention will be explained in more detail with reference to the drawings. Show it:
  • Fig. 1 Front view of a contactor with a quenching chamber and a base part in the locked state acc. a first embodiment,
  • Fig. 2 enlarged view of the locking mechanism,
  • Fig. 3 Perspective view of a quenching chamber acc. a second embodiment with two heat sinks,
  • Fig. 4 partial perspective view with two movable safety locks,
  • Fig. 5 Sectional view of a contactor acc. the first embodiment,
  • Fig. 6 enlarged representation of the details VI Fig. 5 , and
  • Fig. 7 enlarged partial perspective view of an arc extinguishing element with a scattering section.

In Fig. 1 ist eine Vorderansicht eines Schützes 1 dargestellt. Das Schütz 1 umfasst ein Basisteil 3 mit einem Antrieb 5 zum Antrieb beweglicher Kontakte, die in Fig. 1 nicht dargestellt sind. Auf dem Basisteil 3 und mit diesem formschlüssig verbunden ist eine Löschkammer 7 angeordnet. Die Löschkammer 7 ist im Wesentlichen spiegelsymmetrisch um eine Mittelachse 8 mit zwei elektrischen Anschlüssen 9a, 9b aufgebaut. Ferner ist die Löschkammer ebenfalls ebensymmetrisch aufgebaut, so dass die dargestellte Vorderseite mit der nicht dargestellten Rückseite der Löschkammer 7 identisch ist. Die Löschkammer 7 weist ferner vier schwenkbare Polplatten 11 und vier feste Polplatten 13 auf, die an einem Gehäuse 15 der Löschkammer 7 paarweise an der Vorder- und Rückseite angeordnet sind. Dabei werden nur zwei schwenkbare und zwei feste Polplatten 11a, b, 13a, b dargestellt.In Fig. 1 is a front view of a contactor 1 is shown. The contactor 1 comprises a base part 3 with a drive 5 for driving movable contacts, which in Fig. 1 are not shown. On the base part 3 and connected to this form-fitting an extinguishing chamber 7 is arranged. The quenching chamber 7 is constructed essentially mirror-symmetrically about a central axis 8 with two electrical connections 9a, 9b. Furthermore, the quenching chamber is also constructed symmetrically symmetrical, so that the illustrated front is identical to the back of the quenching chamber 7, not shown. The quenching chamber 7 further comprises four pivotable pole plates 11 and four fixed pole plates 13, which are arranged on a housing 15 of the quenching chamber 7 in pairs at the front and back. Only two pivotable and two fixed pole plates 11a, b, 13a, b are shown.

An der dem Basisteil 3 abgewandten, oberen Seite ist ferner eine Halterung 19a durch das Gehäuse 15 der Löschkammer 7 ausgebildet, wobei zwei Verriegelungshebel 17a, b zwischen einer halbrunden Halterungsplatte 21a und dem Gehäuse 15 durch die Halterung 19a derart gehalten sind, dass eine translatorische Bewegung der Verriegelungshebel 17a, b entlang ihrer Längsachse ermöglicht wird. An den der Halterung 19a abgewandten Enden sind die Verriegelungshebel 17a, b jeweils um eine Schwenkachse 18a, b schwenkbar auf den jeweiligen schwenkbaren Polplatten 11a, 11b gelagert. Die Schwenkachsen 18a, b der Verriegelungshebel 17a, b sind in der Nähe der Mittelachse 8 angeordnet, während die Schwenkachsen 12a, b der schwenkbaren Polplatten 11a, b jeweils von der Mittelachse 8 beabstandet angeordnet sind. Jede schwenkbare Polplatte 11a, b weist einen seitlich hinausragenden Betätigungshebel 23a, b auf, welcher über dem jeweiligen elektrischen Anschluss 9a, b vorgesehen ist, so dass die schwenkbare Polplatten 11a, b durch die Betätigungshebel 23a, b leichter betätigt werden können. Somit sind Schwenkbewegungen der linken schwenkbaren Polplatte 11a im Uhrzeigersinn bzw. der rechten schwenkbaren Polplatte 11b gegen den Uhrzeigersinn begrenzt. In der jeweilig entgegengesetzten Richtung sind die Schwenkbewegungen durch zweite Anschlagflächen 31a, b wird am Gehäuse angeschlagen (siehe Fig. 1). An den den zweiten Anschlagflächen 31 abgewandten Seiten ist jeweils ein Haken 33a, b an jede schwenkbare Polplatte 11a, b ausgebildet. In dem in Fig. 1 dargestellten verriegelten Zustand greift jeweils ein Bolzen 35a, b des Basisteils 3 in einen der Haken 33a, b ein, so dass die Löschkammer 7 von dem Basisteil 3 nicht abnehmbar und mit diesem formschlüssig verbunden ist.On the top side facing away from the base part 3, a holder 19a is further formed by the housing 15 of the quenching chamber 7, wherein two locking levers 17a, b are held between a half-round support plate 21a and the housing 15 by the holder 19a such that a translational movement the locking lever 17a, b is made possible along its longitudinal axis. At the ends facing away from the holder 19a, the locking levers 17a, b are each pivotally mounted about a pivot axis 18a, b on the respective pivotable pole plates 11a, 11b. The pivot axes 18 a, b of the locking levers 17 a, b are arranged in the vicinity of the central axis 8, while the pivot axes 12 a, b of the pivotable pole plates 11 a, b are respectively spaced from the central axis 8. Each pivotable pole plate 11a, b has a laterally projecting actuating lever 23a, b, which is provided above the respective electrical connection 9a, b, so that the pivotable Pole plates 11a, b by the operating lever 23a, b can be easily operated. Thus, pivotal movements of the left pivotable pole plate 11a in the clockwise and the right pivotable pole plate 11b are limited counterclockwise. In the respective opposite direction, the pivoting movements by second abutment surfaces 31 a, b is struck on the housing (see Fig. 1 ). On the sides facing away from the second stop surfaces 31, a hook 33a, b is formed on each pivotable pole plate 11a, b. In the in Fig. 1 illustrated locked state engages in each case a bolt 35a, b of the base part 3 in one of the hooks 33a, b, so that the quenching chamber 7 is not removable from the base part 3 and connected to this form-fitting manner.

Fig. 2 zeigt eine vergrößerte Ansicht des Verriegelungsmechanismus, im Wesentlichen bestehend aus den Haken 33a, b und den Bolzen 35a, b. Fig. 2 shows an enlarged view of the locking mechanism, consisting essentially of the hooks 33a, b and the bolts 35a, b.

In der Fig. 3 ist eine Löschkammer 7 nach einem zweiten Ausführungsbeispiel dargestellt, wobei die Kammer 7 sich von einer Löschkammer nach dem ersten Ausführungsbeispiel wie in Fig. 1 und 2 dargestellt im Wesentlichen nur dadurch unterscheidet, dass zwei Kühlkörper 37a, b an den elektrischen Anschlüssen 9a, b vorgesehen sind. In Fig. 3 sind solche Teile, die identische oder ähnliche Funktion wie bei dem ersten Ausführungsbeispiel aufweisen, mit identischen Bezugzeichen versehen, so dass die obige Beschreibung zu Fig. 1 und 2 ebenfalls für das zweite Ausführungsbeispiel gilt.In the Fig. 3 a quenching chamber 7 is shown according to a second embodiment, wherein the chamber 7 of a quenching chamber according to the first embodiment as in Fig. 1 and 2 shown essentially only differs in that two heat sink 37a, b are provided on the electrical terminals 9a, b. In Fig. 3 are those parts having identical or similar function as in the first embodiment, provided with identical reference numerals, so that the above description to Fig. 1 and 2 also applies to the second embodiment.

Die Kühlkörper 37a, b weisen jeweils eine Reihe Kühlrippen 39 auf, die entlang der Umfangsrichtung der Kühlkörper 37a, b angeordnet sind. Ein als elektrischer Anschluss ausgebildeter Bolzen ist jeweils in einer Zentralbohrung der Kühlkörper 37a, b aufgenommen, so dass die Anschlussebene um die Dicke der Kühlkörper 37a, b erhöht sind. Auf der nicht dargestellten Unterseite der Kühlkörper 37a, b sind die als elektrische Anschlüsse 9a, b ausgebildeten Bolzen jeweils an einen als Festkontakt ausgebildetes Kontaktblech befestigt, welches das Gehäuse 15 durchsetzt. Durch die Kühlkörper 37a, b werden die elektrischen Anschlüsse 9a, b sowie die Festkontakte effizient gekühlt.The heat sinks 37a, b each have a number of cooling fins 39, which are arranged along the circumferential direction of the heat sinks 37a, b. A bolt designed as an electrical connection is received in each case in a central bore of the heat sinks 37a, b, so that the connection plane is increased by the thickness of the heat sinks 37a, b. On the lower side of the heat sink 37a, b, not shown, which are designed as electrical terminals 9a, b bolts are each attached to a trained as a fixed contact contact plate, which passes through the housing 15. By the heat sink 37a, b, the electrical connections 9a, b and the fixed contacts are cooled efficiently.

Auf der von dem Basisteil abgewandten, oberen Seite des Gehäuses 15 ist eine längliche, quadratische Freifläche vorgesehen, so dass lamellenförmige Lichtbogenlöschelemente 41 nach oben frei liegen. Zwischen den Lichtbogenlöschelementen 41 sind mehrere Austrittsöffnungen 43 von Strömungskanälen dargestellt, welche jeweils zwischen zwei benachbarten Lichtbogenlöschelementen 41 ausgebildet sind.On the side remote from the base part, the upper side of the housing 15, an elongated, square free surface is provided so that lamellar arc extinguishing elements 41 are exposed upwards. Between the arc extinguishing elements 41 are a plurality of outlet openings 43 of flow channels shown, which are each formed between two adjacent arc extinguishing elements 41.

Das Gehäuse 15 besteht aus zwei Gehäusehälften 15a, b, die miteinander über Verbindungsbolzen 45 mit jeweils einer inneren Bohrung verbunden sind. Auf der oberen Seite des Gehäuses 15 sind ferner zwei Halterungen 19a, b mit jeweils einer Halterungsplatte 21a, b vorgesehen, die mit Bezug auf Fig. 4 näher erläutert werden.The housing 15 consists of two housing halves 15a, b, which are connected to each other via connecting bolts 45, each having an inner bore. On the upper side of the housing 15, two brackets 19 a, b are provided, each with a support plate 21 a, b, with respect to Fig. 4 be explained in more detail.

Wie in Fig. 4 dargestellt, umfasst jede Halterung 19a, b zunächst eine halbrunde Halterungsplatte 21a, b, die mittels einer Schraube unter Zwischenlagerung der freien Enden der Verriegelungshebel 17a, b an dem Gehäuse 15 befestigt wird. Die Halterungsplatte 21a, b ist derart mit zwei seitlichen Nasen 47 ausgestaltet, so dass die Verriegelungshebel 17a, b in Umfangsrichtung begrenzt und im Wesentlichen entlang ihrer Längsachse frei beweglich sind. In einem entriegelten Zustand der schwenkbaren Polplatte 11b ragt das freie Ende des entsprechenden Verriegelungshebels 17b über den oberen Rand des Gehäuses 15 hinaus, so dass der Benutzer aufgrund der spezifischen farbigen Kennzeichnung der Verriegelungshebel 17a, b den Zustand sehr leicht feststellen kann. In einem verriegelten Zustand erstrecken sich die Verriegelungshebel 17a, b nur bis zum oberen Rand der Halterungsplatte 21a, b. In diesem Fall wird eine bewegliche Sicherheitsriegelung 49a, b durch ein nicht dargestelltes Federelement in eine verriegelte Position, nämlich von der in Fig. 4 dargestellten Position in Richtung zu der Halterungsplatte 21a, b gedrückt, so dass die bewegliche Sicherheitsriegelung 49a, b die freien Enden der Verriegelungshebel 17a, b abdeckt. Somit wird eine ungewollte translatorische Bewegung des Verriegelungshebels 17a, b durch die Sicherheitsriegelung 49a, b verhindert.As in Fig. 4 1, each holder 19a, b initially comprises a semicircular holder plate 21a, b, which is fastened to the housing 15 by means of a screw with intermediate storage of the free ends of the locking levers 17a, b. The support plate 21a, b is configured with two lateral lugs 47, so that the locking levers 17a, b are limited in the circumferential direction and freely movable substantially along its longitudinal axis. In an unlocked state of the pivotal pole plate 11b, the free end of the corresponding locking lever 17b protrudes beyond the upper edge of the housing 15 so that the user can easily determine the condition due to the specific color coding of the locking levers 17a, b. In a locked state, the locking levers 17a, b extend only to the upper edge of the support plate 21a, b. In this case, a movable safety latch 49a, b by a spring element, not shown, in a locked position, namely of the in Fig. 4 shown position in the direction of the support plate 21 a, b pressed so that the movable safety latch 49 a, b covering the free ends of the locking lever 17 a, b. Thus, an unwanted translational movement of the locking lever 17a, b prevented by the safety latch 49a, b.

In Fig. 5 ist eine vordere Schnittansicht des Inneren eines Schützes 1 gemäß dem ersten Ausführungsbeispiel dargestellt. Jedoch gelten die nachfolgenden Erläuterungen ebenfalls für das zweite Ausführungsbeispiel. Das Schütz 1 umfasst zwei Kontaktstellen 52, 53 mit jeweils einem Festkontakt 54, 55 und je einem beweglichen Kontakt 56, 57. Die beweglichen Kontakte 56, 57 der beiden Kontaktstellen 52, 53 sind auf einer gemeinsamen Kontaktbrücke 58 angeordnet. Die Kontaktbrücke 58 kann über einen Magnetantrieb bewegt werden und aus einem Schließzustand des Schützes 1, in dem die beweglichen Kontakte 56, 57 die Festkontakte 54, 55 berühren und somit die Kontaktstellen 52, 53 geschlossen sind, in einer Offenstellung überführt werden. In der Offenstellung sind die beweglichen Kontakte 56, 57 von den Festkontakten 54, 55 getrennt. Aufgrund der hohen Ströme und hohen Spannungen, die mit dem Schütz geschaltet werden, entstehen beim Öffnen der Kontaktstellen 52, 53 Lichtbögen 65, 66 zwischen den jeweiligen Festkontakten 54, 55 und dem zugehörigen beweglichen Kontakt 56, 57.In Fig. 5 is a front sectional view of the interior of a contactor 1 according to the first embodiment shown. However, the following explanations also apply to the second embodiment. The contactor 1 comprises two contact points 52, 53 each having a fixed contact 54, 55 and a respective movable contact 56, 57. The movable contacts 56, 57 of the two contact points 52, 53 are arranged on a common contact bridge 58. The contact bridge 58 can be moved by a magnetic drive and from a closed state of the contactor 1, in which the movable contacts 56, 57 touch the fixed contacts 54, 55 and thus the contact points 52, 53 are closed, are transferred in an open position. In the open position, the movable contacts 56, 57 are separated from the fixed contacts 54, 55. Because of the high Currents and high voltages that are switched with the contactor, arise when opening the contact points 52, 53 arcs 65, 66 between the respective fixed contacts 54, 55 and the associated movable contact 56, 57th

Benachbart zu den Festkontakten 54, 55 ist an jeder Kontaktstelle 52, 53 ein Lichtbogenleitblech 59, 60 angeordnet, wobei die Lichtbogenleitbleche 59, 60 durch je einen Luftspalt 61, 62 von dem jeweiligen Festkontakt 54, 55 isoliert sind. Die Lichtbogenleitbleche 59, 60 sind so geformt, dass sie zwischen den Kontaktstellen 52, 53 einen Lichtbogenleitschacht 69 bilden, der im Wesentlichen senkrecht zur Längserstreckung der Kontaktbrücke 58 verläuft und durch den die Lichtbögen 65 oder 66 (je nach Lichtbogenlaufrichtung) mittels der Blasfelder der Permanentmagnete 63, 64 und/oder Blasspulen 67, 68 hindurch in Richtung einer Löscheinrichtung 74 geblasen werden.Adjacent to the fixed contacts 54, 55, an arc guide plate 59, 60 is arranged at each contact point 52, 53, wherein the Lichtbogenleitbleche 59, 60 are each isolated by an air gap 61, 62 of the respective fixed contact 54, 55. The Lichtbogenleitbleche 59, 60 are shaped so that they form between the contact points 52, 53 a Lichtbogenleitschacht 69 which is substantially perpendicular to the longitudinal extent of the contact bridge 58 and through which the arcs 65 or 66 (depending on the arc running direction) by means of the Blasfelder the permanent magnets 63, 64 and / or blowing coils 67, 68 are blown in the direction of a quenching device 74.

Die Blasspulen 67, 68 sind im Wesentlichen zwischen den schwenkbaren Polplatten 11a, b angeordnet, während die Permanentmagnete 63, 64 im Wesentlichen zwischen den festen Polplatten 13a, 13b angeordnet sind. Die Polplatten 11a, b, 13a, b sind in Fig. 5 nicht dargestellt. Somit wird jeweils ein homogenes Blasfeld erzeugt, welches effizient die Lichtbögen 65, 66 in die Löscheinrichtung 74 bläst.The blowing coils 67, 68 are disposed substantially between the pivotable pole plates 11a, b, while the permanent magnets 63, 64 are disposed substantially between the fixed pole plates 13a, 13b. The pole plates 11a, b, 13a, b are in Fig. 5 not shown. Thus, a homogeneous blowing field is generated in each case, which efficiently blows the arcs 65, 66 into the extinguishing device 74.

An jeder der beiden Kontaktstellen 52, 53 ist benachbart zu dem Luftspalt 61, 62 eine Schutzverkleidung 75, 76 angeordnet. Die Schutzverkleidungen 75, 76 sind jeweils zwischen dem Luftspalt 61, 62, den Permanentmagneten 63, 64, den Festkontakten 54, 55 und den Lichtbogenleitblechen 59, 60 angeordnet und erstrecken sich von den jeweiligen Festkontakten 54, 55 nach oben zu den jeweiligen Lichtbogenleitblechen 59, 60. Somit wird ein abgeschlossener Raum durch die Schutzverkleidungen 75, 76, die Festkontakte 54, 55 und die jeweiligen Lichtbogenleitbleche 59, 60 ausgebildet, so dass die Permanentmagnete 63, 64 und die Blasspulen 67, 68 vor Lichtbögen und daraus entstandenem Plasma geschützt sind, wenn Lichtbögen 65,66 in den abgeschlossenen Raum beim Aktivieren der Blasspulen 67, 68 eindringen. Um die Schutzverkleidungen 75, 76 zu befestigen, ist es vorgesehen, dass jede der zwei durch das Gehäuse ausgebildete zylindrischen Aufnahmen 77, 78 der Permanentmagneten 63, 64 einen Vorsprung aufweist, welcher sich in Richtung des magnetischen Blasfeldes bzw. in die Nord-Süd-Richtung der Permanentmagneten 63, 64 erstreckt. Die Schutzverkleidungen 75, 76 weisen jeweils eine Nut 79 auf, über die die Schutzverkleidungen 75, 76 an den Aufnahmen 77, 78 gehalten werden. Somit sind die Schutzverkleidungen 75, 76 auch in Richtung der Löscheinrichtung einschiebbar und austauschbar angeordnet.At each of the two contact points 52, 53 adjacent to the air gap 61, 62, a protective cover 75, 76 is arranged. The protective linings 75, 76 are each arranged between the air gap 61, 62, the permanent magnets 63, 64, the fixed contacts 54, 55 and the arc guide plates 59, 60 and extend from the respective fixed contacts 54, 55 upwards to the respective arc guide plates 59, 60. Thus, a closed space is formed by the protective linings 75, 76, the fixed contacts 54, 55 and the respective arc guide plates 59, 60, so that the permanent magnets 63, 64 and the blowing coils 67, 68 are protected from arcs and resulting plasma, when arcs 65, 66 penetrate into the confined space upon activation of the blow coils 67, 68. In order to secure the protective linings 75, 76, it is provided that each of the two cylindrical receptacles 77, 78 of the permanent magnets 63, 64 formed by the housing has a projection which extends in the direction of the magnetic blowing field or in the north-south direction. Direction of the permanent magnets 63, 64 extends. The protective linings 75, 76 each have a groove 79, via which the protective linings 75, 76 are held on the receptacles 77, 78. Thus, the protective panels 75, 76 are also inserted in the direction of the extinguishing device and interchangeable.

Die Schutzverkleidungen 75, 76 sind aus einem lichtbogenresistenten Material ausgebildet. Vorzugsweise wird dafür ein keramisches Material, insbesondere Steatit oder Cordierit eingesetzt. Diese Materialien weisen eine gewisse Porosität auf, so dass sie auch bei Temperaturschocks relativ stabil sind. Dies ist insbesondere daher notwendig, da die Lichtbogentemperatur bis zu 20000 K beträgt.The protective coatings 75, 76 are formed of an arc-resistant material. Preferably, a ceramic material, in particular steatite or cordierite, is used for this purpose. These materials have a certain porosity, so that they are relatively stable even at temperature shocks. This is particularly necessary because the arc temperature is up to 20000 K.

In der Löscheinrichtung 74 über den Lichtbogenleitblechen 59, 60 sind eine Vielzahl von Lichtbogenlöschelementen 41 lamellenförmig angeordnet. Zwischen den Lichtbogenlöschelementen 41 sind noch näher zu erläuternden Strömungskanäle ausgebildet, welche sich im Wesentlichen von den Lichtbogenleitblechen 59, 60 in vertikaler Richtung nach oben erstrecken. Somit werden die Luft und gegebenenfalls das Plasma, welche zwischen den Kontakten 54, 55, 56, 57 sowie zwischen den Lichtbogenleitblechen 59, 60 entstehen, in die Strömungskanäle geblasen, und somit durch die Lichtbogenlöschelemente 41 gekühlt werden.In the quenching device 74 on the arc guide plates 59, 60 a plurality of arc extinguishing elements 41 are arranged in a lamellar. Between the arc extinguishing elements 41, flow channels which are to be explained in more detail are formed, which essentially extend upward in the vertical direction from the arc guide plates 59, 60. Thus, the air and optionally the plasma, which arise between the contacts 54, 55, 56, 57 and between the Lichtbogenleitblechen 59, 60 are blown into the flow channels, and thus cooled by the arc extinguishing elements 41.

Fig. 6 zeigt eine vergrößerte Darstellung des Schnitts VI aus Fig. 5. Die Lichtbogenlöschelemente 41 und die Strömungskanäle 82 unterteilen sich jeweils in einen Streuabschnitt 80 und einen Löschabschnitt 81, wobei der Streuabschnitt 80 jeweils von den Löschabschnitt 81 durch zwei Trennstege 83 getrennt ist. In dem Löschabschnitt ist jeweils ein Keil 84 vorgesehen, welcher sich von den Trennstegen 83 in Richtung zu den Lichtbogenleitblechen 60 verjüngt. Über den Trennstegen 83 ist eine luftumlenkende Vertiefung an der Seitenfläche des Lichtbogenlöschelements 41 ausgebildet. Eine zweite luftumlenkende Vertiefung ist an der nicht dargestellten Rückseite ebenfalls ausgebildet, wobei die zweite Vertiefung sich in der entgegengesetzten Richtung erstreckt. Die Lichtbogenlöschelemente 41 sind nebeneinander gestapelt angeordnet, wobei jeweils zwei aufeinanderfolgende Lichtbogenlöschelemente 41 um 180° zueinander gedreht montiert sind. Somit können die Lichtbogenlöschelemente 41 identisch ausgebildet werden, die zwei Gruppen von Streuabschnitten 80 mit entgegengesetzten Richtungen ausformen. In den luftumlenkenden Vertiefungen 87 sind jeweils Umlenkstege 85 mit einer Krümmung ausgebildet, so dass die Luft effizienter umgelenkt werden kann. Fig. 6 shows an enlarged view of the section VI Fig. 5 , The arc-extinguishing elements 41 and the flow channels 82 are each subdivided into a scattering section 80 and an extinguishing section 81, wherein the scattering section 80 is separated from the extinguishing section 81 by two separating ribs 83, respectively. In the erase portion, a wedge 84 is provided in each case, which tapers from the separating webs 83 in the direction of the arc guide plates 60. An air-deflecting recess is formed on the side surface of the arc-extinguishing element 41 via the separating webs 83. A second air deflecting recess is also formed on the rear side, not shown, with the second recess extending in the opposite direction. The arc extinguishing elements 41 are arranged side by side stacked, with two successive arc extinguishing elements 41 are mounted rotated by 180 ° to each other. Thus, the arc-extinguishing elements 41 can be formed identically, forming two groups of scattering portions 80 in opposite directions. In the air deflecting recesses 87 deflecting webs 85 are each formed with a curvature, so that the air can be deflected more efficiently.

In Fig. 7 ist eine vergrößerte perspektivische Teilansicht des Streuabschnitts 80. Auf der Höhe der Trennstege 83 ist eine Querschnittsänderung dadurch ausgebildet, dass eine Vertiefung 86 zwischen den zwei Trennstegen 83 ausgebildet ist. Die Querschnittsänderung dient dazu, die Luft bzw. das Plasma effizienter abzukühlen und umzulenken.In Fig. 7 is an enlarged partial perspective view of the scattering portion 80. At the level of the separating webs 83, a change in cross section is formed by forming a depression 86 between the two separating webs 83. The change in cross section serves to cool and redirect the air or the plasma more efficiently.

Claims (13)

  1. Arc chamber (7) for a contactor, wherein the arc chamber (7) comprises at least one contact area (52, 53) with a fixed contact (54, 55), at last one extinguishing system (74) and a blowing device (63, 64, 67, 68) to create a magnetic blowout field which blows electric arcs (65, 66) into the extinguishing system (74), wherein the blowing system (63, 64, 67, 68) includes at least one permanent magnet (63, 64), which is arranged adjacent to the contact area (52, 53), to create a permanent magnetic blowout field and/or at least one coil (67, 68), which is arranged adjacent to the contact area (52, 53), to create an electromagnetic blowout field so that an electric arc (65, 66), that emerges on opening of the contact area (52, 53) is blown into the at least one extinguishing system (74),
    wherein at least two magnetically conductive pole plates (11, 13) are arranged in parallel to each other with intermediate arrangement of the permanent magnet (63, 64) and/or the coil (67, 68) so that the blowing effect is amplified by magnetic fields to guide the electric arcs (65, 66),
    characterized in that
    at least one of the pole plates (11, 13) is formed as a swivelable locking system by means of which the arc chamber (7) is removable from a base part (3) of a contactor (1) in an unlocked state and connectable to the base part (3) of the contactor (1) in a form-locking way in a locked state.
  2. Arc chamber (7) according to claim 1, characterized in that a locking lever (17) is eccentrically and pivotally connected to the swivelable pole plate (11) in an and supported by a holder (19) in a way that a swivel movement of the pole plate (11) leads to a translational movement of the locking lever (17).
  3. Arc chamber (7) according to claim 2, characterized in that the locking lever (17) is pivotally connected to the pole plate (11) at an end and supported on the opposite, free end by the holder (19) which comprises a movable safety locking device (49) that in the locked state of the pole plate (11) is pressed into a locked position over the free end by a spring element so that the translational movement of the locking lever (17) is prevented by the safety locking device (49).
  4. Arc chamber (7) according to claim 3, characterized in that a display element arranged on the locking lever (17) is visible in the unlocked state and not visible in the locked state.
  5. Arc chamber (7) according to one of the claims 1 to 4, characterized in that the swivel movement of the swivelable pole plate (11) is limited in both directions by a respective stop surface (33 with 35, 31).
  6. Arc chamber (7) according to the claim 5, characterized in that the blowing device (63, 64, 67, 68) comprises at least one coil (67, 68) with a swivelable first pole plate (11) as well as at least one permanent magnet (63, 64) with a non-rotatable second pole plate (13), wherein the first and the second pole plate (11, 13) are separated from each other by an intermediate gap.
  7. Arc chamber (7) according to claim 5 or 6, characterized in that a stop surface (33 with 35) is formed by an enclosure.
  8. Arc chamber (7) according to one of the claims 1 to 7, wherein the arc chamber comprises a cooling element (37) which is connected to the fixed contact (54, 55) in a thermally conductive way.
  9. Arc chamber (7) according to the claim 8, characterized in that the arc chamber further includes an electrically insulating enclosure (15), wherein the fixed contact (54, 55) extends through the enclosure (15) and consequently forms an electric contact (9) at which the cooling element (37) is mounted.
  10. Arc chamber (7) according to one of the claims 1 to 9, characterized in that the extinguishing system (74) comprises an electric arc guiding plate (59, 60), wherein an air gap is provided in the proximity of the contact area (52, 53) between the electric arc guiding plate (59, 60) and the fixed contact (54, 55), wherein a protective cladding (75, 76) is arranged between the air gap and the permanent magnet (63, 64) and/or the coil (67, 68) and extends from the fixed contact (54, 55) towards the electric arc guiding plate (59, 60), and wherein the protective cladding (75, 76) is insertable in the direction of the extinguishing system (74) and hence replaceably arranged.
  11. Arc chamber (7) according to claim 10, characterized in that the protective cladding (75, 76) is fastened by means of a groove (79) or a protrusion which extends perpendicularly to the surfaces of the fixed contact (54, 55) and/or the surface of the electric arc guiding plate (59, 60).
  12. Contactor for a direct current and/or alternating current operation with at least one movable contact (56, 57), characterized by an arc chamber (7) according to one of the claims 1 to 11.
  13. Contactor according to claim 12 with an arc chamber according to one of the claims 1 to 7, characterized in that the contactor (1) includes a base part (3) with a locking mechanism that interacts with the swivelable pole plate (11) so that the arc chamber (7) is lockable and unlockable with the base part (3).
EP18159196.7A 2014-02-27 2014-06-06 Arc extinguishing chamber for a protective switch and a protective switch for extinguishing arcing Active EP3349230B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014002902.6A DE102014002902B4 (en) 2014-02-27 2014-02-27 Extinguishing chamber for a contactor and a contactor for extinguishing electric arcs
PCT/EP2014/001554 WO2015127948A1 (en) 2014-02-27 2014-06-06 Quenching chamber for a contactor and a contactor for quenching arcs
EP14728838.5A EP3111459B1 (en) 2014-02-27 2014-06-06 Quenching chamber for a contactor and a contactor for quenching arcs

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14728838.5A Division EP3111459B1 (en) 2014-02-27 2014-06-06 Quenching chamber for a contactor and a contactor for quenching arcs
EP14728838.5A Division-Into EP3111459B1 (en) 2014-02-27 2014-06-06 Quenching chamber for a contactor and a contactor for quenching arcs

Publications (2)

Publication Number Publication Date
EP3349230A1 EP3349230A1 (en) 2018-07-18
EP3349230B1 true EP3349230B1 (en) 2019-04-17

Family

ID=50897534

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14728838.5A Active EP3111459B1 (en) 2014-02-27 2014-06-06 Quenching chamber for a contactor and a contactor for quenching arcs
EP18159196.7A Active EP3349230B1 (en) 2014-02-27 2014-06-06 Arc extinguishing chamber for a protective switch and a protective switch for extinguishing arcing

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14728838.5A Active EP3111459B1 (en) 2014-02-27 2014-06-06 Quenching chamber for a contactor and a contactor for quenching arcs

Country Status (11)

Country Link
US (1) US9646784B2 (en)
EP (2) EP3111459B1 (en)
JP (1) JP6413202B2 (en)
KR (2) KR101861935B1 (en)
CN (2) CN108777241B (en)
DE (1) DE102014002902B4 (en)
ES (2) ES2688816T3 (en)
RU (2) RU159229U1 (en)
UA (2) UA123723C2 (en)
WO (1) WO2015127948A1 (en)
ZA (2) ZA201508561B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6548905B2 (en) * 2015-02-06 2019-07-24 富士通コンポーネント株式会社 switch
RU170596U1 (en) * 2016-12-19 2017-05-05 Владимир Максимович Буртовой Interrupter
DE102017106300B4 (en) * 2017-03-23 2023-07-27 Schaltbau Gmbh Switching device with improved permanent-magnetic arc quenching
DE102017107441A1 (en) * 2017-04-06 2018-10-11 Schaltbau Gmbh Switchgear with contact cover
EP3389069B1 (en) 2017-04-11 2019-12-11 Microelettrica Scientifica S.p.A. Improved breaker for high d.c. current or voltage applications, for instance industrial and/or railways applications
PL3389067T3 (en) * 2017-04-11 2020-06-01 Microelettrica Scientifica S.P.A. High speed circuit breaker for industrial and railways applications
DE102017125260A1 (en) * 2017-10-27 2019-05-02 Schaltbau Gmbh Electrical switching device with improved arc quenching device
DE102018204104A1 (en) * 2018-03-16 2019-09-19 Ellenberger & Poensgen Gmbh Switching unit for disconnecting a circuit and circuit breaker
DE102018117275B3 (en) * 2018-05-24 2019-07-04 Dehn + Söhne Gmbh + Co. Kg Non-rotationally symmetric horn spark gap with deion chamber
EP3624157A1 (en) 2018-09-17 2020-03-18 Microelettrica Scientifica S.p.A. Improved switching device or contactor with high arc extinguishing capabilities
CN111146028A (en) * 2020-01-15 2020-05-12 上海电器科学研究所(集团)有限公司 Direct current contactor contact arc extinguishing system
DE102020104258B4 (en) * 2020-02-18 2022-09-29 Schaltbau Gmbh Switching device with at least two mutually communicating extinguishing areas
CN112951523B (en) * 2021-01-19 2023-09-05 中车株洲电力机车有限公司 Insulator
CN113054534B (en) * 2021-02-24 2022-04-15 云南电网有限责任公司德宏供电局 Method for improving arc extinguishing efficiency of multi-cavity structure by using magnetic field
US11948762B2 (en) * 2021-04-30 2024-04-02 Astronics Advanced Electronic Systems Corp. High voltage high current arc extinguishing contactor

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448231A (en) 1966-11-14 1969-06-03 Gen Electric Electric circuit breaker arc chute with arc discharge filter
JPS4723654U (en) * 1971-04-07 1972-11-16
JPS5918608Y2 (en) * 1979-04-20 1984-05-29 松下電工株式会社 Arc extinguishing device for hardwire circuit breakers
JPS6312516Y2 (en) * 1979-12-20 1988-04-11
DE9115905U1 (en) 1991-12-21 1993-04-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit breaker with an arc chamber
AT404770B (en) * 1993-01-27 1999-02-25 Felten & Guilleaume Ag Oester ARC EXTINGUISHING CHAMBER FOR SWITCHES
DE4333278A1 (en) 1993-09-24 1995-03-30 Siemens Ag Circuit breaker with an arc extinguisher
US5416455A (en) * 1994-02-24 1995-05-16 Eaton Corporation Direct current switching apparatus
US5763847A (en) * 1996-10-09 1998-06-09 Eaton Corporation Electric current switching apparatus with tornadic arc extinguishing mechanism
US5899323A (en) * 1998-05-07 1999-05-04 Eaton Corporation Electrical switching apparatus with contact finger guide
US6144273A (en) * 1998-08-31 2000-11-07 Niles Parts Co., Ltd. Inhibitor switch having magnetic contact portion
US6194984B1 (en) * 1998-09-30 2001-02-27 Rockwell Technologies, Llc Movable contact assembly for an electrical contactor
US6229419B1 (en) * 1999-08-30 2001-05-08 Eaton Corporation Circuit interrupter with break-away walking beam access
US6573815B1 (en) * 1999-12-02 2003-06-03 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
KR100351300B1 (en) * 2000-09-27 2002-09-05 엘지산전 주식회사 Hybrid arc extinguishing apparatus for circuit breaker
US7176771B2 (en) * 2001-08-24 2007-02-13 Square D Company Circuit breaker filter assembly
JP2004296184A (en) * 2003-03-26 2004-10-21 Mitsubishi Electric Corp Circuit breaker
US6924721B2 (en) * 2003-07-14 2005-08-02 Eaton Corporation Gas segregator barrier for electrical switching apparatus
DE502004007984D1 (en) * 2004-07-08 2008-10-16 Abb Schweiz Ag Arc quenching device for circuit breaker
US6977354B1 (en) * 2004-11-03 2005-12-20 Eaton Corporation Arc hood and power distribution system including the same
US7105764B2 (en) * 2005-01-13 2006-09-12 Eaton Corporation Monolithic stationary conductor and current limiting power switch incorporating same
US20060213873A1 (en) 2005-03-23 2006-09-28 Eaton Corporation ARC chute assembly and electric power switch incorporating same
DE102005023163A1 (en) 2005-05-19 2006-11-23 Schaltbau Gmbh Direct-current arc extinguishing chamber includes inner extinguishing appliance and permanent magnetic field blowing arc into appliance, for contactor voltages
DE102006035844B4 (en) * 2006-08-01 2008-06-19 Schaltbau Gmbh Contactor for DC and AC operation
US7674996B2 (en) * 2006-09-20 2010-03-09 Eaton Corporation Gassing insulator, and arc chute assembly and electrical switching apparatus employing the same
US7750770B2 (en) * 2006-09-25 2010-07-06 Rockwell Automation Technologies, Inc. Gas diverter for an electrical switching device
CN101055807A (en) * 2007-03-13 2007-10-17 西安交通大学 AC contactor bar arc-quenching chamber with the double arc slice
DE102009013337B4 (en) 2009-03-16 2011-01-27 Schaltbau Gmbh Arc-resistant contactor
US8164018B2 (en) * 2009-03-23 2012-04-24 Siemens Industry, Inc. Circuit breaker arc chambers and methods for operating same
CN203277278U (en) * 2013-05-31 2013-11-06 浙江天正电气股份有限公司 Arc-extinguishing chamber

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3349230A1 (en) 2018-07-18
ZA201607857B (en) 2018-05-30
KR20160033186A (en) 2016-03-25
UA115440C2 (en) 2017-11-10
ES2688816T3 (en) 2018-11-07
CN108777241A (en) 2018-11-09
EP3111459B1 (en) 2018-08-08
CN105659344A (en) 2016-06-08
RU2014141565A (en) 2016-05-10
JP2017510944A (en) 2017-04-13
UA123723C2 (en) 2021-05-26
ZA201508561B (en) 2017-08-30
KR20170126518A (en) 2017-11-17
RU159229U1 (en) 2016-02-10
CN105659344B (en) 2018-08-17
DE102014002902A1 (en) 2015-08-27
CN108777241B (en) 2019-11-19
US9646784B2 (en) 2017-05-09
ES2727508T3 (en) 2019-10-16
KR101861935B1 (en) 2018-06-29
KR101861982B1 (en) 2018-06-29
US20160329177A1 (en) 2016-11-10
DE102014002902B4 (en) 2019-08-01
EP3111459A1 (en) 2017-01-04
RU2594754C2 (en) 2016-08-20
WO2015127948A1 (en) 2015-09-03
JP6413202B2 (en) 2018-10-31

Similar Documents

Publication Publication Date Title
EP3349230B1 (en) Arc extinguishing chamber for a protective switch and a protective switch for extinguishing arcing
EP1693869A2 (en) Electrical installation device with pre-arc chamber, pre-arc chamber plates and current limiting arc extinguishing device
EP1687835B1 (en) Switching device
DE102014004455B4 (en) Electrical switching device with improved arc extinguishing device and method for manufacturing such switching device
DE102011101238A1 (en) Service switching device
DE112015005463T5 (en) Electromagnetic relay
EP1473750A1 (en) Electro-mechanical switching device
EP2774158B1 (en) Switch for multi-pole direct current operation
DE2158749B2 (en) CIRCUIT BREAKER
DE102007053636B3 (en) Electrical installation equipment e.g. circuit breaker, has opening receiving permanent magnet for producing alternating current or direct current glass device supporting arc guide during alternating current and direct current operations
EP3278411B1 (en) Low-voltage switchgear cabinet with reduced risk of the occurrence of internal arcing
EP2387059B1 (en) Electric installation switching device with quick fastening means
DE102014019713A1 (en) Extinguishing chamber for a contactor and a contactor for extinguishing electric arcs
EP2747107B1 (en) Electric switching device
EP1722384B1 (en) Electrical installation device with an arc chute assembly and a current limiting arc extinguishing device
EP2786389B1 (en) Permanent magnet assembly for an arc driver assembly and switching device
DE102005007303B4 (en) Electrical installation device with arc prechamber space, arc guide rails and current limiting arc quenching device
DE202015101839U1 (en) Electrical service switching device with an arc extinguishing chamber
DE102014111849B4 (en) Switching device, in particular for switching direct currents
EP0883888A1 (en) Fuse-switch and/or fuse-disconnector
EP3211648B1 (en) Switching contact assembly
DE1244263B (en) Housing for electrical switchgear, especially contactors
DEC0007054MA (en)

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

AC Divisional application: reference to earlier application

Ref document number: 3111459

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17P Request for examination filed

Effective date: 20180629

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 9/34 20060101AFI20181207BHEP

Ipc: H01H 9/44 20060101ALI20181207BHEP

INTG Intention to grant announced

Effective date: 20190103

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AC Divisional application: reference to earlier application

Ref document number: 3111459

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014011485

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1122468

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190515

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190417

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2727508

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20191016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190717

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190817

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190718

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190817

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014011485

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

26N No opposition filed

Effective date: 20200120

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190717

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190606

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190606

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140606

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190417

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20230703

Year of fee payment: 10

Ref country code: CH

Payment date: 20230702

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240626

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20240626

Year of fee payment: 11

Ref country code: CZ

Payment date: 20240528

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240626

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240627

Year of fee payment: 11