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 PDFInfo
- 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.)
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Links
- 230000001681 protective effect Effects 0.000 title claims description 18
- 238000007664 blowing Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 claims 5
- 238000005253 cladding Methods 0.000 claims 3
- 238000010791 quenching Methods 0.000 description 31
- 230000000171 quenching effect Effects 0.000 description 31
- 239000000463 material Substances 0.000 description 3
- 229910052878 cordierite Inorganic materials 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 238000012432 intermediate storage Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H33/182—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means 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
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 ausFig. 5 , und -
Fig. 7 vergrößerte perspektivische Teilansicht eines Lichtbogenlöschelements mit einem Streuabschnitt.
-
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 VIFig. 5 , and -
Fig. 7 enlarged partial perspective view of an arc extinguishing element with a scattering section.
In
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
In der
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
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
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
Wie in
In
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
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
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
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
In
Claims (13)
- 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. - 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).
- 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).
- 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.
- 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).
- 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.
- Arc chamber (7) according to claim 5 or 6, characterized in that a stop surface (33 with 35) is formed by an enclosure.
- 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.
- 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.
- 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.
- 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).
- 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.
- 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).
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 |
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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 |
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EP3349230A1 EP3349230A1 (en) | 2018-07-18 |
EP3349230B1 true EP3349230B1 (en) | 2019-04-17 |
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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 |
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EP14728838.5A Active EP3111459B1 (en) | 2014-02-27 | 2014-06-06 | Quenching chamber for a contactor and a contactor for quenching arcs |
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US (1) | US9646784B2 (en) |
EP (2) | EP3111459B1 (en) |
JP (1) | JP6413202B2 (en) |
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CN (2) | CN108777241B (en) |
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ES (2) | ES2688816T3 (en) |
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UA (2) | UA123723C2 (en) |
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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 |
-
2014
- 2014-02-27 DE DE102014002902.6A patent/DE102014002902B4/en not_active Expired - Fee Related
- 2014-06-06 JP JP2016554248A patent/JP6413202B2/en active Active
- 2014-06-06 WO PCT/EP2014/001554 patent/WO2015127948A1/en active Application Filing
- 2014-06-06 KR KR1020167004119A patent/KR101861935B1/en active IP Right Grant
- 2014-06-06 UA UAA201708734A patent/UA123723C2/en unknown
- 2014-06-06 CN CN201810783915.2A patent/CN108777241B/en active Active
- 2014-06-06 UA UAA201409635A patent/UA115440C2/en unknown
- 2014-06-06 ES ES14728838.5T patent/ES2688816T3/en active Active
- 2014-06-06 US US15/110,080 patent/US9646784B2/en active Active
- 2014-06-06 KR KR1020177032405A patent/KR101861982B1/en active IP Right Grant
- 2014-06-06 CN CN201480046404.2A patent/CN105659344B/en active Active
- 2014-06-06 EP EP14728838.5A patent/EP3111459B1/en active Active
- 2014-06-06 ES ES18159196T patent/ES2727508T3/en active Active
- 2014-06-06 EP EP18159196.7A patent/EP3349230B1/en active Active
- 2014-06-06 RU RU2014129641/07U patent/RU159229U1/en active
- 2014-10-15 RU RU2014141565/07A patent/RU2594754C2/en active
-
2015
- 2015-11-19 ZA ZA2015/08561A patent/ZA201508561B/en unknown
-
2016
- 2016-11-14 ZA ZA2016/07857A patent/ZA201607857B/en unknown
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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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 |
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