EP2135272B1 - Production method for an electromagnetic switching device having partition walls between primary and auxiliary contacts and an electromagnetic switching device produced according to the production method - Google Patents

Production method for an electromagnetic switching device having partition walls between primary and auxiliary contacts and an electromagnetic switching device produced according to the production method Download PDF

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Publication number
EP2135272B1
EP2135272B1 EP08718352A EP08718352A EP2135272B1 EP 2135272 B1 EP2135272 B1 EP 2135272B1 EP 08718352 A EP08718352 A EP 08718352A EP 08718352 A EP08718352 A EP 08718352A EP 2135272 B1 EP2135272 B1 EP 2135272B1
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EP
European Patent Office
Prior art keywords
contact
switching chamber
bridge
primary
auxiliary
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
EP08718352A
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German (de)
French (fr)
Other versions
EP2135272A2 (en
Inventor
Georg Bollinger
Johann Drexler
Alexander Keintzel
Peter Schlegl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Publication of EP2135272A2 publication Critical patent/EP2135272A2/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/045—Details particular to contactors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the present invention relates to a manufacturing method for an electromagnetic switching device. It further relates to an electromagnetic switching device.
  • a load voltage typically three-phase current of up to 690 V nominal voltage - in some cases more - or DC voltage of up to 500 V rated voltage - in some cases even more
  • the main contacts are usually designed as normally open.
  • the auxiliary contacts the actual switching state of the electromagnetic switching device is tapped.
  • the auxiliary contacts switch to a monitoring voltage, which is often considerably lower than the load voltage. Typically, it is either 24 V DC or 100/110/230 V AC. In some cases higher voltage values are possible.
  • the auxiliary contacts may alternatively be designed as a make or as an opener.
  • the contact erosion causes the main contacts are worn after a certain number of switching cycles.
  • the contact erosion may additionally cause the auxiliary contacts to be impaired in their function, for example by contamination or by corrosion due to the penetration of aggressive gases that arise when Maisabbrand the main contacts. For this reason, the main contacts should be isolated from the auxiliary contacts as well as possible.
  • the object of the present invention is to provide a manufacturing method for an electromagnetic switching device and an electromagnetic switching device manufactured according to this manufacturing method, by means of which, despite one-piece design of the switching chamber good foreclosure of the main contacts can be achieved by the auxiliary contacts.
  • each auxiliary contact bridge is arranged above one of the main contact bridges. It is possible that in this embodiment, the foreclosure of the main contacts of the auxiliary contacts is effected exclusively by the separating elements.
  • the contact bridge carrier per bridge contact point of each auxiliary contact bridge depending on a tongue extending between the bridge contact point of the respective auxiliary contact bridge and the bridge contact of the corresponding main contact bridge extends.
  • the foreclosure effect can be further optimized.
  • the separating elements together with the tongues can form a labyrinth.
  • the separating elements have a U-shaped cross-section. Because they are on the one hand easy to produce and on the other hand still have a good effect.
  • the separators may be simple flat tongues.
  • the loading of the switching chamber with the stationary auxiliary counter contact points must be done after insertion of the contact bridge carrier in the switching chamber.
  • An electromagnetic switching device has a housing 1.
  • a contact bridge carrier 2 is mounted in the housing 1.
  • the Contact bridge carrier 2 is equipped with movable main contact bridges 3 and with movable auxiliary contact bridges 4.
  • the contact bridge carrier 2 is made of electrically insulating material. For example, it may be formed as a plastic injection molded part. It is connected to an anchor 5.
  • a switching coil 6 is further arranged.
  • the switching coil 6 When the switching coil 6 is acted upon by a sufficiently large current I, it attracts the armature 5.
  • the contact bridge carrier 2 is displaced longitudinally in an actuating direction x.
  • bridge contact points 7 of the main contact bridges 3 are pressed against fixed main counter contact points 8, which are arranged in a switching chamber 9.
  • the load voltage may be, for example, 400 V three-phase, 500 V DC, 690 V three-phase, etc.
  • the electromagnetic switching device is designed as a contactor.
  • each one of the auxiliary contacts 4, 10, 11 formed as an opener or as normally open.
  • bridge contact points 10 of one of the auxiliary contacts 4, 10, 11 at auxiliary counter-contact points 11 are pressed against the longitudinal displacement of the contact bridge carrier 2 and bridge contact points 10 of the other of the auxiliary contacts 4, 10, 11 are lifted off corresponding auxiliary counter-contact points 11.
  • the auxiliary counter contact points 11 are fixed counter contact points, with which the switching chamber 9 is equipped.
  • each auxiliary contact bridge 4 is arranged above one of the main contact bridges 3.
  • the switching chamber 9 is firstly produced in a customary manner on the one hand.
  • the switching chamber 9 is integrally formed in the present invention. It consists of an electrically insulating material. For example, it may be formed as a plastic injection molded part. The production of the switching chamber 9 is well known to those skilled in the art and therefore need not be discussed further below.
  • the switching chamber 9 is in FIG. 3 shown.
  • the contact bridge carrier 2 is manufactured and equipped with the movable contact bridges 3, 4.
  • the populated contact bridge carrier 2 is particularly clear in the FIG. 3 and 4 to recognize.
  • the contact bridges 3, 4 comprise a plurality (usually three to five) main contact bridges 3 and at least one (usually one or two) auxiliary contact bridges 4.
  • the contact bridges 3, 4 are referred to as "movable" because they are in operation of the electromagnetic switching device be moved together with the contact bridge carrier 2.
  • Each contact bridge 3, 4 has two bridge contact points 7, 10, which cooperate with the fixed mating contact points 8, 11.
  • the contact bridge carrier 2 further per bridge contact point 10 each auxiliary contact bridge 4 each have a tongue 13.
  • the tongues 13 extend between the respective bridge contact point 10 of the respective auxiliary contact bridge 4 and the bridge contact point 7 of the corresponding main contact bridge 3.
  • the contact bridge carrier 2 can be manufactured and fitted simultaneously with or after the switching chamber 9 has been manufactured.
  • the contact bridge carrier 2 After loading the contact bridge carrier 2, the contact bridge carrier 2 is inserted into the switching chamber 9. The insertion of the contact bridge carrier 2 in the switching chamber 9 takes place here against the actuating direction x. He is also mounted longitudinally displaceable after insertion into the switching chamber 9 in the operating direction x.
  • each separating element 14 is arranged between a bridge contact point 7 of one of the main contact bridges 3 and a bridge contact point 10 of one of the auxiliary contact bridges 4. This is especially clear from the FIG. 5 and 6 seen.
  • the switching chamber 9 is further equipped with the fixed main counter-contact points 8.
  • the main counter-contact points 8 are referred to as "fixed”, because they are stationary in the housing 1 and the switching chamber 9, so do not move together with the contact bridge carrier 2.
  • the loading of the switching chamber 9 with the main counter contact points 8 takes place - analogous to the introduction the separating elements 14 - also in the contact bridge direction y from the outside to the contact bridge carrier 2.
  • main covers 15 are fixed to the switching chamber. This is especially clear FIG. 3 seen.
  • the fixing of the main covers 15 is effected by pressing in the actuation direction x.
  • the main covers 15 can be latched or snapped onto the housing 1 or the switching chamber 9.
  • the main counter-contact points 8 cover the main covers 15 on the one hand, the main counter-contact points 8 from.
  • the switching chamber 9 is equipped with the stationary auxiliary counter-contact points 11.
  • the auxiliary counter-contact points 11 are referred to as "fixed”, because they are arranged stationary in the housing 1 and the switching chamber 9, so do not move together with the contact bridge carrier 2.
  • the loading of the switching chamber 9 with the auxiliary mating contact points 11 also takes place in the contact bridge direction y from the outside to the contact bridge carrier 2.
  • the equipping with fixed auxiliary counter contact points 11 may even follow the fixing of the main cover 15 to the switching chamber 9 under certain circumstances.
  • auxiliary cover 16 After fitting with the fixed auxiliary counter-contact points 11 at least one auxiliary cover 16 is fixed to the switching chamber 9, which covers the auxiliary counter contact points 11 after fixing.
  • the fixing of the auxiliary cover 16 is usually - but not necessarily - after fixing the main covers 15th
  • the individual elements 1 to 16 of the switching device are such coordinated so that the insertion of the separating elements 14 in the switching chamber 9 and the loading of the switching chamber 9 with the fixed main counter contacts 8 and the stationary auxiliary counter contact points 11 after insertion of the equipped with the movable contact bridges 3, 4 contact bridge carrier 2 must be made in the switching chamber 9.
  • the main counter-contact points 8 and the auxiliary counter-contact points 11 protrude into the insertion, which is required for the insertion of the assembled contact bridge carrier 2.
  • the individual elements 1 to 16 of the switching device are coordinated such that the fixing of the main covers 15 must be made to the switching chamber 9 after insertion of the separating elements 14 in the switching chamber 9 and after fitting the switching chamber 9 with the fixed main counter contact points 8. Because after fixing the main covers 15, insertion of the separating elements 14 and the main counter-contact points 8 in the switching chamber 9 is no longer possible.
  • the auxiliary counter contact points 11 must be used before fixing the main covers 15. In other embodiments, (or must - depending on the configuration), the loading with the fixed auxiliary counter-contact points 11 after fixing the main cover 15 done.
  • the tongues 13 of the contact bridge carrier 2 are - see FIG. 8 - Between the separating elements 14 and the bridge contact points 7 of the main contact bridges 3 are arranged. They form according to FIG. 8 together with the separating elements 14 a - preferably double - labyrinth.
  • the achieved Abschottungsrial here is particularly large when the separating elements 14 have a U-shaped cross-section. This too is out FIG. 8 seen.
  • the separating elements 14 may be formed, for example, as simple tongues.
  • the present invention has many advantages. In particular, it results in a simpler, more reliable and less expensive Structure of the electromagnetic switching device. Furthermore, the contact bridge carrier 2 can be equipped in advance (that is, even before insertion into the switching chamber 9). Also, it is easily possible to realize a double maze. Finally, it results - see in particular FIG. 7 - A compact overall design of the electromagnetic switching device.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Manufacture Of Switches (AREA)
  • Electromagnets (AREA)

Description

Die vorliegende Erfindung betrifft ein Herstellungsverfahren für ein elektromagnetisches Schaltgerät. Sie betrifft ferner ein elektromagnetisches Schaltgerät.The present invention relates to a manufacturing method for an electromagnetic switching device. It further relates to an electromagnetic switching device.

Elektromagnetische Schaltgeräte und Herstellungsverfahren für elektromagnetische Schaltgeräte sind allgemein bekannt. Insbesondere weist ein elektromagnetisches Schaltgerät bekanntermaßen folgende Merkmale auf:

  • Das Schaltgerät weist eine Schaltkammer und einen Kontaktbrückenträger auf.
  • Der Kontaktbrückenträger ist mit beweglichen Kontaktbrücken bestückt.
  • Die Kontaktbrücken umfassen mehrere Hauptkontaktbrücken und mindestens eine Hilfskontaktbrücke.
  • Der Kontaktbrückenträger ist in die Schaltkammer eingeführt und dort in einer Betätigungsrichtung längsverschieblich gelagert.
  • Die Schaltkammer ist mit feststehenden Hauptgegenkontaktstellen und feststehenden Hilfsgegenkontaktstellen bestückt.
  • Jede Hauptgegenkontaktstelle wirkt mit einer der Brückenkontaktstellen einer der Hauptkontaktbrücken zusammen und jede Hilfsgegenkontaktstelle wirkt mit einer der Brückenkontaktstellen einer der Hilfskontaktbrücken zusammen.
  • An der Schaltkammer sind Hauptabdeckungen fixiert, so dass die Hauptabdeckungen die Hauptgegenkontaktstellen abdecken.
Electromagnetic switching devices and manufacturing methods for electromagnetic switching devices are well known. In particular, an electromagnetic switching device is known to have the following features:
  • The switching device has a switching chamber and a contact bridge carrier.
  • The contact bridge carrier is equipped with movable contact bridges.
  • The contact bridges comprise a plurality of main contact bridges and at least one auxiliary contact bridge.
  • The contact bridge carrier is inserted into the switching chamber and mounted there longitudinally displaceable in an actuating direction.
  • The switching chamber is equipped with fixed main counter contact points and fixed auxiliary counter contact points.
  • Each main mating contact point cooperates with one of the bridge contact points of one of the main contact bridges and each auxiliary mating contact point interacts with one of the bridge contact points of one of the auxiliary contact bridges.
  • Main covers are fixed to the interrupter chamber so that the main covers cover the main counter contact points.

Mittels der Hauptkontakte wird im Stand der Technik eine Lastspannung (typisch Dreiphasendrehstrom von bis zu 690 V Nennspannung - in Einzelfällen auch mehr - oder Gleichspannung von bis zu 500 V Nennspannung - in Einzelfällen auch mehr) an eine Last angeschaltet. Die Hauptkontakte sind in der Regel als Schließer ausgebildet. Mittels der Hilfskontakte wird der tatsächliche Schaltzustand des elektromagnetischen Schaltgeräts abgegriffen. Die Hilfskontakte schalten hierzu eine Überwachungsspannung, die oftmals erheblich niedriger als die Lastspannung ist. Typisch beträgt sie entweder 24 V Gleichspannung oder 100/110/230 V Wechselspannung. In Einzelfällen sind auch höhere Spannungswerte möglich. Die Hilfskontakte können alternativ als Schließer oder als Öffner ausgebildet sein.By means of the main contacts in the prior art, a load voltage (typically three-phase current of up to 690 V nominal voltage - in some cases more - or DC voltage of up to 500 V rated voltage - in some cases even more) connected to a load. The main contacts are usually designed as normally open. By means of the auxiliary contacts, the actual switching state of the electromagnetic switching device is tapped. The auxiliary contacts switch to a monitoring voltage, which is often considerably lower than the load voltage. Typically, it is either 24 V DC or 100/110/230 V AC. In some cases higher voltage values are possible. The auxiliary contacts may alternatively be designed as a make or as an opener.

An den Hauptkontakten tritt bei Schaltvorgängen Kontaktabbrand auf. Der Kontaktabbrand führt dazu, dass die Hauptkontakte nach einer gewissen Anzahl von Schaltspielen verschlissen sind. Der Kontaktabbrand kann jedoch zusätzlich dazu führen, dass die Hilfskontakte in ihrer Funktion beeinträchtigt werden, beispielsweise durch Verschmutzung oder durch Korrosion auf Grund des Eindringens von aggressiven Gasen, die beim Kontaktabbrand der Hauptkontakte entstehen. Aus diesem Grund sollten die Hauptkontakte von den Hilfskontakten möglichst gut abgeschottet sein.At the main contacts occurs during switching operations contact erosion. The contact erosion causes the main contacts are worn after a certain number of switching cycles. However, the contact erosion may additionally cause the auxiliary contacts to be impaired in their function, for example by contamination or by corrosion due to the penetration of aggressive gases that arise when Kontaktabbrand the main contacts. For this reason, the main contacts should be isolated from the auxiliary contacts as well as possible.

Im Stand der Technik ist bekannt, die Schaltkammer einstückig auszubilden und an der Schaltkammer Rippen anzuformen. Der Kontaktbrückenträger hingegen weist bei dieser Ausgestaltung keine Rippen oder dergleichen auf. Durch diese Ausgestaltung kann ein sogenanntes einfaches Labyrinth realisiert werden.In the prior art it is known to form the switching chamber in one piece and to form ribs on the switching chamber. The contact bridge carrier, however, has no ribs or the like in this embodiment. By this configuration, a so-called simple labyrinth can be realized.

Aus der US 6,583,694 B2 ist ein elektromagnetisches Schaltgerät bekannt, bei dem sowohl an die Schaltkammer als auch an den Kontaktbrückenträger Rippen angeformt sind, so dass ein sogenanntes doppeltes Labyrinth realisiert werden kann. Bei dieser Ausgestaltung ist die Schaltkammer jedoch aus zwei Teilen zusammengesetzt, so dass sich ein höherer Fertigungs - und Monatageaufwand ergibt.From the US 6,583,694 B2 is an electromagnetic switching device is known in which ribs are formed on both the switching chamber and the contact bridge carrier, so that a so-called double maze can be realized. In this embodiment, however, the switching chamber is composed of two parts, resulting in a higher production and monthly expenditure.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Herstellungsverfahren für ein elektromagnetisches Schaltgerät und ein entsprechend diesem Herstellungsverfahren hergestelltes elektromagnetisches Schaltgerät anzugeben, mittels derer trotz einteiliger Ausgestaltung der Schaltkammer eine gute Abschottung der Hauptkontakte von den Hilfskontakten erreicht werden kann.The object of the present invention is to provide a manufacturing method for an electromagnetic switching device and an electromagnetic switching device manufactured according to this manufacturing method, by means of which, despite one-piece design of the switching chamber good foreclosure of the main contacts can be achieved by the auxiliary contacts.

Die Aufgabe wird verfahrenstechnisch durch ein Herstellungsverfahren für ein elektromagnetisches Schaltgerät gelöst, bei dem in der nachfolgend aufgelisteten Reihenfolge folgend Schritte ausgeführt werden:

  • Herstellen einer einstückigen Schaltkammer, Herstellen eines Kontaktbrückenträgers und Bestücken des Kontaktbrückenträgers mit beweglichen Kontaktbrücken, wobei die Kontaktbrücken mehrere Hauptkontaktbrücken und mindestens eine Hilfskontaktbrücke umfassen;
  • Einführen des mit den beweglichen Kontaktbrücken bestückten Kontaktbrückenträgers in die Schaltkammer;
  • Einführen von Trennelementen in die Schaltkammer, so dass jedes Trennelement zwischen einer Brückenkontaktstelle einer der Hauptkontaktbrücken und einer Brückenkontaktstelle einer der Hilfskontaktbrücken angeordnet ist, und Bestücken der Schaltkammer mit feststehenden Hauptgegenkontaktstellen;
  • Fixieren von Hauptabdeckungen an der Schaltkammer, so dass die Hauptabdeckungen die Hauptgegenkontaktstellen abdecken und die Trennelemente in der Schaltkammer fixieren.
The object is procedurally achieved by a manufacturing method for an electromagnetic switching device in which following steps are carried out in the following order:
  • Producing a one-piece switching chamber, producing a contact bridge carrier and equipping the contact bridge carrier with movable contact bridges, the contact bridges comprising a plurality of main contact bridges and at least one auxiliary contact bridge;
  • Inserting the contact bridge carrier equipped with the movable contact bridges into the switching chamber;
  • Inserting separating elements into the switching chamber so that each separating element is disposed between a bridge contact point of one of the main contact bridges and a bridge contact point of one of the auxiliary contact bridges, and equipping the switching chamber with fixed main counter contact points;
  • Fixing main covers to the switching chamber so that the main covers cover the main mating contact points and fix the partitions in the switching chamber.

Hiermit korrespondierend wird die Aufgabe einrichtungstechnisch durch ein elektromagnetisches Schaltgerät mit folgenden Merkmalen gelöst:

  • Das Schaltgerät weist eine einstückige Schaltkammer und einen Kontaktbrückenträger auf.
  • Der Kontaktbrückenträger ist mit beweglichen Kontaktbrücken bestückt.
  • Die Kontaktbrücken umfassen mehrere Hauptkontaktbrücken und mindestens eine Hilfskontaktbrücke.
  • Der Kontaktbrückenträger ist in die Schaltkammer eingeführt und dort in einer Betätigungsrichtung längsverschieblich gelagert.
  • In die Schaltkammer sind Trennelemente eingeführt, so dass jedes Trennelement zwischen einer Brückenkontaktstelle einer der Hauptkontaktbrücken und einer Brückenkontaktstelle einer der Hilfskontaktbrücken angeordnet ist.
  • Die Schaltkammer ist mit feststehenden Hauptgegenkontaktstellen und feststehenden Hilfsgegenkontaktstellen bestückt.
  • Jede Hauptgegenkontaktstelle wirkt mit einer der Brückenkontaktstellen einer der Hauptkontaktbrücken zusammen und jede Hilfsgegenkontaktstelle wirkt mit einer der Brückenkontaktstellen einer der Hilfskontaktbrücken zusammen.
  • An der Schaltkammer sind Hauptabdeckungen fixiert, so dass die Hauptabdeckungen die Hauptgegenkontaktstellen abdecken und die Trennelemente in der Schaltkammer fixieren.
  • Die einzelnen Elemente des Schaltgeräts sind derart aufeinander abgestimmt, dass das Einführen der Trennelemente in die Schaltkammer und das Bestücken der Schaltkammer mit den feststehenden Hauptgegenkontaktstellen nach dem Einführen des mit den beweglichen Kontaktbrücken bestückten Kontaktbrückenträgers in die Schaltkammer erfolgen muss und das Fixieren der Hauptabdeckungen an der Schaltkammer nach dem Einführen der Trennelemente in die Schaltkammer und dem Bestücken der Schaltkammer mit den feststehenden Hauptgegenkontaktstellen erfolgen muss.
Corresponding to this, the object is achieved by an electromagnetic switching device having the following features:
  • The switching device has a one-piece switching chamber and a contact bridge carrier.
  • The contact bridge carrier is equipped with movable contact bridges.
  • The contact bridges comprise a plurality of main contact bridges and at least one auxiliary contact bridge.
  • The contact bridge carrier is inserted into the switching chamber and mounted there longitudinally displaceable in an actuating direction.
  • Separating elements are inserted into the switching chamber, so that each separating element is arranged between a bridge contact point of one of the main contact bridges and a bridge contact point of one of the auxiliary contact bridges.
  • The switching chamber is equipped with fixed main counter contact points and fixed auxiliary counter contact points.
  • Each main mating contact point cooperates with one of the bridge contact points of one of the main contact bridges and each auxiliary mating contact point interacts with one of the bridge contact points of one of the auxiliary contact bridges.
  • Main covers are fixed to the switching chamber, so that the main covers cover the main counter contact points and fix the separating elements in the switching chamber.
  • The individual elements of the switching device are matched to one another such that the insertion of the separating elements into the switching chamber and the loading of the switching chamber with the fixed main counter contact points after insertion of the equipped with the movable contact bridges contact bridge carrier must be made in the switching chamber and fixing the main covers to the switching chamber must be made after inserting the separating elements in the switching chamber and the loading of the switching chamber with the fixed main counter contact points.

In der Regel ist in der Betätigungsrichtung gesehen jede Hilfskontaktbrücke oberhalb je einer der Hauptkontaktbrücken angeordnet. Es ist möglich, dass bei dieser Ausgestaltung die Abschottung der Hauptkontakte von den Hilfskontakten ausschließlich durch die Trennelemente bewirkt wird. Vorzugsweise jedoch weist der Kontaktbrückenträger pro Brückenkontaktstelle jeder Hilfskontaktbrücke je eine Zunge auf, die sich zwischen der Brückenkontaktstelle der jeweiligen Hilfskontaktbrücke und der Brückenkontaktstelle der korrespondierenden Hauptkontaktbrücke erstreckt. Durch diese Ausgestaltung kann die Abschottungswirkung noch weiter optimiert werden. Insbesondere können die Trennelemente zusammen mit den Zungen ein Labyrinth bilden.As a rule, as seen in the direction of actuation, each auxiliary contact bridge is arranged above one of the main contact bridges. It is possible that in this embodiment, the foreclosure of the main contacts of the auxiliary contacts is effected exclusively by the separating elements. Preferably, however, the contact bridge carrier per bridge contact point of each auxiliary contact bridge depending on a tongue extending between the bridge contact point of the respective auxiliary contact bridge and the bridge contact of the corresponding main contact bridge extends. By this configuration, the foreclosure effect can be further optimized. In particular, the separating elements together with the tongues can form a labyrinth.

In einer bevorzugten Ausgestaltung weisen die Trennelemente einen U-förmigen Querschnitt auf. Denn dadurch sind sie einerseits einfach herstellbar und weisen andererseits dennoch eine gute Wirkung auf. Alternativ kann es sich bei den Trennelementen um einfache flache Zungen handeln.In a preferred embodiment, the separating elements have a U-shaped cross-section. Because they are on the one hand easy to produce and on the other hand still have a good effect. Alternatively, the separators may be simple flat tongues.

Das Bestücken der Schaltkammer mit den feststehenden Hilfsgegenkontaktstellen muss nach dem Einführen des Kontaktbrückenträgers in die Schaltkammer erfolgen.The loading of the switching chamber with the stationary auxiliary counter contact points must be done after insertion of the contact bridge carrier in the switching chamber.

Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels in Verbindung mit den Zeichnungen. Es zeigen in Prinzipdarstellung:

FIG 1
schematisch ein elektromagnetisches Schaltgerät,
FIG 2
schematisch einen bestückten Kontaktbrückenträger,
FIG 3
eine Explosionsdarstellung wesentlicher Teile eines elektromagnetischen Schaltgeräts,
FIG 4
eine perspektivische Darstellung eines in FIG 3 enthaltenen Kontaktbrückenträger,
FIG 5
eine perspektivische Darstellung des elektromagnetischen Schaltgeräts von FIG 3 mit teilweise entfernten Abdeckungen und Seitenwänden,
FIG 6
eine perspektivische Darstellung des oberen Bereichs des elektromagnetischen Schaltgeräts von FIG 3,
FIG 7
eine perspektivische Darstellung des vollständigen elektromagnetischen Schaltgeräts von FIG 3 und
FIG 8
ein Detail des elektromagnetischen Schaltgeräts von FIG 3.
Further advantages and details emerge from the following description of an embodiment in conjunction with the drawings. In a schematic representation:
FIG. 1
schematically an electromagnetic switching device,
FIG. 2
schematically a populated contact bridge carrier,
FIG. 3
an exploded view of essential parts of an electromagnetic switching device,
FIG. 4
a perspective view of an in FIG. 3 contained contact bridge carrier,
FIG. 5
a perspective view of the electromagnetic switching device of FIG. 3 with partially removed covers and side walls,
FIG. 6
a perspective view of the upper portion of the electromagnetic switching device of FIG. 3 .
FIG. 7
a perspective view of the complete electromagnetic switching device of FIG. 3 and
FIG. 8
a detail of the electromagnetic switching device of FIG. 3 ,

Ein elektromagnetisches Schaltgerät weist ein Gehäuse 1 auf. Im Gehäuse 1 ist ein Kontaktbrückenträger 2 gelagert. Der Kontaktbrückenträger 2 ist mit beweglichen Hauptkontaktbrücken 3 und mit beweglichen Hilfskontaktbrücken 4 bestückt. Der Kontaktbrückenträger 2 besteht aus elektrisch isolierendem Material. Beispielsweise kann er als Kunststoff-Spritzgießteil ausgebildet sein. Er ist mit einem Anker 5 verbunden.An electromagnetic switching device has a housing 1. In the housing 1, a contact bridge carrier 2 is mounted. Of the Contact bridge carrier 2 is equipped with movable main contact bridges 3 and with movable auxiliary contact bridges 4. The contact bridge carrier 2 is made of electrically insulating material. For example, it may be formed as a plastic injection molded part. It is connected to an anchor 5.

Im Gehäuse 1 ist weiterhin eine Schaltspule 6 angeordnet. Wenn die Schaltspule 6 mit einem hinreichend großen Strom I beaufschlagt wird, zieht sie den Anker 5 an. Dadurch wird der Kontaktbrückenträger 2 in einer Betätigungsrichtung x längs verschoben. Durch das Längsverschieben des Kontaktbrückenträgers 2 werden Brückenkontaktstellen 7 der Hauptkontaktbrücken 3 an feststehende Hauptgegenkontaktstellen 8 angedrückt, die in einer Schaltkammer 9 angeordnet sind. Auf diese Weise kann eine nicht dargestellte Last an eine Lastspannung angeschaltet werden. Die Lastspannung kann beispielsweise 400 V Drehstrom, 500 V Gleichspannung, 690 V Drehstrom usw. sein. Insbesondere in diesen Fällen ist das elektromagnetische Schaltgerät als Schütz ausgebildet.In the housing 1, a switching coil 6 is further arranged. When the switching coil 6 is acted upon by a sufficiently large current I, it attracts the armature 5. As a result, the contact bridge carrier 2 is displaced longitudinally in an actuating direction x. By the longitudinal displacement of the contact bridge carrier 2 bridge contact points 7 of the main contact bridges 3 are pressed against fixed main counter contact points 8, which are arranged in a switching chamber 9. In this way, a load, not shown, can be connected to a load voltage. The load voltage may be, for example, 400 V three-phase, 500 V DC, 690 V three-phase, etc. In particular, in these cases, the electromagnetic switching device is designed as a contactor.

Beim Längsverschieben des Kontaktbrückenträgers 2 werden nicht nur die Hauptkontakte 3, 7, 8 betätigt, sondern auch Hilfskontakte 4, 10, 11. In der Regel ist je einer der Hilfskontakte 4, 10, 11 als Öffner bzw. als Schließer ausgebildet. Es werden also beim Längsverschieben des Kontaktbrückenträgers 2 beispielsweise Brückenkontaktstellen 10 des einen der Hilfskontakte 4, 10, 11 an Hilfsgegenkontaktstellen 11 angedrückt und Brückenkontaktstellen 10 des anderen der Hilfskontakte 4, 10, 11 von korrespondierenden Hilfsgegenkontaktstellen 11 abgehoben. Die Hilfsgegenkontaktstellen 11 sind feststehende Gegenkontaktstellen, mit denen die Schaltkammer 9 bestückt ist.When longitudinal displacement of the contact bridge carrier 2, not only the main contacts 3, 7, 8 are actuated, but also auxiliary contacts 4, 10, 11. As a rule, each one of the auxiliary contacts 4, 10, 11 formed as an opener or as normally open. Thus, for example, bridge contact points 10 of one of the auxiliary contacts 4, 10, 11 at auxiliary counter-contact points 11 are pressed against the longitudinal displacement of the contact bridge carrier 2 and bridge contact points 10 of the other of the auxiliary contacts 4, 10, 11 are lifted off corresponding auxiliary counter-contact points 11. The auxiliary counter contact points 11 are fixed counter contact points, with which the switching chamber 9 is equipped.

Die Darstellung von FIG 1, bei der alle Kontaktbrücken 3, 4 in der Betätigungsrichtung x gesehen übereinander angeordnet sind, ist mehr der prinzipiellen Erläuterung der Funktionsweise des elektromagnetischen Schaltgeräts gedacht. In der Praxis sind die Hauptkontaktbrücken 3 - siehe FIG 2 - meist nebeneinander angeordnet, so dass folgende drei Richtungen ein rechtwinkliges kartesisches Koordinatensystem definieren:

  • die Betätigungsrichtung x,
  • die Haupterstreckungsrichtung y der Kontaktbrücken 3, 4, nachfolgend Kontaktbrückenrichtung y genannt, und
  • die Normale z zu den beiden erstgenannten Richtungen x, y, nachfolgend Normalenrichtung z genannt.
The representation of FIG. 1 , in which all the contact bridges 3, 4 are arranged one above the other in the operating direction x, more of the basic explanation of the operation of the electromagnetic switching device is intended. In the Practice are the main contact bridges 3 - see FIG. 2 - Most arranged side by side, so that the following three directions define a right-angled Cartesian coordinate system:
  • the actuation direction x,
  • the main extension direction y of the contact bridges 3, 4, hereinafter called contact bridge direction y, and
  • the normal z to the first two directions x, y, called normal direction z below.

Weiterhin ist aus FIG 2 ersichtlich, dass die Kontaktbrücken 3, 4 mittels Andruckfedern 12 in vorbestimmten Ruhelagen gehalten werden. Schließlich ist aus FIG 2 ersichtlich, dass in der Betätigungsrichtung x gesehen jede Hilfskontaktbrücke 4 oberhalb je einer der Hauptkontaktbrücken 3 angeordnet ist.Furthermore, it is off FIG. 2 can be seen that the contact bridges 3, 4 are held by means of pressure springs 12 in predetermined rest positions. Finally is off FIG. 2 It can be seen that, viewed in the actuating direction x, each auxiliary contact bridge 4 is arranged above one of the main contact bridges 3.

Zum Herstellen eines erfindungsgemäßen elektromagnetischen Schaltgeräts wird zum einen zunächst in üblicher Weise die Schaltkammer 9 hergestellt. Die Schaltkammer 9 ist bei der vorliegenden Erfindung einstückig ausgebildet. Sie besteht aus einem elektrisch isolierenden Material. Beispielsweise kann sie als Kunststoff-Spritzgießteil ausgebildet sein. Die Herstellung der Schaltkammer 9 ist Fachleuten allgemein bekannt und muss daher nachfolgend nicht näher erläutert werden. Die Schaltkammer 9 ist in FIG 3 dargestellt.For the manufacture of an electromagnetic switching device according to the invention, the switching chamber 9 is firstly produced in a customary manner on the one hand. The switching chamber 9 is integrally formed in the present invention. It consists of an electrically insulating material. For example, it may be formed as a plastic injection molded part. The production of the switching chamber 9 is well known to those skilled in the art and therefore need not be discussed further below. The switching chamber 9 is in FIG. 3 shown.

Weiterhin wird der Kontaktbrückenträger 2 hergestellt und mit den beweglichen Kontaktbrücken 3, 4 bestückt. Der bestückte Kontaktbrückenträger 2 ist besonders deutlich in den FIG 3 und 4 zu erkennen. Die Kontaktbrücken 3, 4 umfassen mehrere (in der Regel drei bis fünf) Hauptkontaktbrücken 3 und mindestens eine (in der Regel eine oder zwei) Hilfskontaktbrücken 4. Die Kontaktbrücken 3, 4 sind als "beweglich" bezeichnet, weil sie im Betrieb des elektromagnetischen Schaltgeräts zusammen mit dem Kontaktbrückenträger 2 bewegt werden. Jede Kontaktbrücke 3, 4 weist zwei Brückenkontaktstellen 7, 10 auf, die mit den feststehenden Gegenkontaktstellen 8, 11 zusammenwirken.Furthermore, the contact bridge carrier 2 is manufactured and equipped with the movable contact bridges 3, 4. The populated contact bridge carrier 2 is particularly clear in the FIG. 3 and 4 to recognize. The contact bridges 3, 4 comprise a plurality (usually three to five) main contact bridges 3 and at least one (usually one or two) auxiliary contact bridges 4. The contact bridges 3, 4 are referred to as "movable" because they are in operation of the electromagnetic switching device be moved together with the contact bridge carrier 2. Each contact bridge 3, 4 has two bridge contact points 7, 10, which cooperate with the fixed mating contact points 8, 11.

Wie insbesondere aus FIG 4 ersichtlich ist, weist der Kontaktbrückenträger 2 weiterhin pro Brückenkontaktstelle 10 jeder Hilfskontaktbrücke 4 je eine Zunge 13 auf. Die Zungen 13 erstrecken sich hierbei zwischen der jeweiligen Brückenkontaktstelle 10 der jeweiligen Hilfskontaktbrücke 4 und der Brückenkontaktstelle 7 der korrespondierenden Hauptkontaktbrücke 3. Das Herstellen und Bestücken des Kontaktbrückenträgers 2 kann alternativ vor, gleichzeitig mit oder nach dem Herstellen der Schaltkammer 9 erfolgen.As in particular from FIG. 4 it can be seen, the contact bridge carrier 2 further per bridge contact point 10 each auxiliary contact bridge 4 each have a tongue 13. In this case, the tongues 13 extend between the respective bridge contact point 10 of the respective auxiliary contact bridge 4 and the bridge contact point 7 of the corresponding main contact bridge 3. Alternatively, the contact bridge carrier 2 can be manufactured and fitted simultaneously with or after the switching chamber 9 has been manufactured.

Nach dem Bestücken des Kontaktbrückenträgers 2 wird der Kontaktbrückenträger 2 in die Schaltkammer 9 eingeführt. Das Einführen des Kontaktbrückenträgers 2 in die Schaltkammer 9 erfolgt hierbei entgegen der Betätigungsrichtung x. Er ist auch nach dem Einführen in die Schaltkammer 9 in der Betätigungsrichtung x längsverschieblich gelagert.After loading the contact bridge carrier 2, the contact bridge carrier 2 is inserted into the switching chamber 9. The insertion of the contact bridge carrier 2 in the switching chamber 9 takes place here against the actuating direction x. He is also mounted longitudinally displaceable after insertion into the switching chamber 9 in the operating direction x.

Sodann werden in die Schaltkammer 9 Trennelemente 14 eingeführt. Das Einführen der Trennelement 14 in die Schaltkammer 9 erfolgt hierbei in der Kontaktbrückenrichtung y, und zwar von außen auf den Kontaktbrückenträger 2 zu. Dies ist besonders deutlich aus FIG 3 ersichtlich. Durch das Einführen der Trennelemente 14 in die Schaltkammer 9 wird erreicht, dass jedes Trennelement 14 zwischen einer Brückenkontaktstelle 7 einer der Hauptkontaktbrücken 3 und einer Brückenkontaktstelle 10 einer der Hilfskontaktbrücken 4 angeordnet ist. Dies ist besonders deutlich aus den FIG 5 und 6 ersichtlich.Then 9 dividing elements 14 are introduced into the switching chamber. The insertion of the separating element 14 in the switching chamber 9 takes place here in the contact bridge direction y, namely from the outside to the contact bridge carrier 2. This is especially clear FIG. 3 seen. By inserting the separating elements 14 into the switching chamber 9, it is achieved that each separating element 14 is arranged between a bridge contact point 7 of one of the main contact bridges 3 and a bridge contact point 10 of one of the auxiliary contact bridges 4. This is especially clear from the FIG. 5 and 6 seen.

Vor, zusammen mit oder nach dem Einführen der Trennelemente 14 in die Schaltkammer 9 wird weiterhin die Schaltkammer 9 mit den feststehenden Hauptgegenkontaktstellen 8 bestückt. Die Hauptgegenkontaktstellen 8 sind als "feststehend" bezeichnet, weil sie im Gehäuse 1 bzw. der Schaltkammer 9 ortsfest angeordnet sind, sich also nicht zusammen mit dem Kontaktbrückenträger 2 bewegen. Das Bestücken der Schaltkammer 9 mit den Hauptgegenkontaktstellen 8 erfolgt - analog zum Einführen der Trennelemente 14 - ebenfalls in der Kontaktbrückenrichtung y von außen auf den Kontaktbrückenträger 2 zu.Before, together with or after the insertion of the separating elements 14 in the switching chamber 9, the switching chamber 9 is further equipped with the fixed main counter-contact points 8. The main counter-contact points 8 are referred to as "fixed", because they are stationary in the housing 1 and the switching chamber 9, so do not move together with the contact bridge carrier 2. The loading of the switching chamber 9 with the main counter contact points 8 takes place - analogous to the introduction the separating elements 14 - also in the contact bridge direction y from the outside to the contact bridge carrier 2.

Schließlich werden an der Schaltkammer 9 Hauptabdeckungen 15 fixiert. Dies ist besonders deutlich aus FIG 3 ersichtlich. Das Fixieren der Hauptabdeckungen 15 erfolgt durch Andrücken in der Betätigungsrichtung x. Beispielsweise können die Hauptabdeckungen 15 mit dem Gehäuse 1 bzw. der Schaltkammer 9 verrastet oder aufgeschnappt werden. Im fixierten Zustand der Hauptabdeckungen 15 decken die Hauptabdeckungen 15 zum einen die Hauptgegenkontaktstellen 8 ab. Weiterhin fixieren sie die Trennelemente 14 in der Schaltkammer 9. Dies ist besonders deutlich aus FIG 6 ersichtlich.Finally, 9 main covers 15 are fixed to the switching chamber. This is especially clear FIG. 3 seen. The fixing of the main covers 15 is effected by pressing in the actuation direction x. For example, the main covers 15 can be latched or snapped onto the housing 1 or the switching chamber 9. In the fixed state of the main covers 15 cover the main covers 15 on the one hand, the main counter-contact points 8 from. Furthermore, they fix the separating elements 14 in the switching chamber 9. This is particularly clear FIG. 6 seen.

Vor, zusammen mit oder nach dem Einführen der Trennelemente 14 in die Schaltkammer 9 und dem Bestücken der Schaltkammer 9 mit den feststehenden Hauptgegenkontaktstellen 8 wird die Schaltkammer 9 mit den feststehenden Hilfsgegenkontaktstellen 11 bestückt. Die Hilfsgegenkontaktstellen 11 sind als "feststehend" bezeichnet, weil sie im Gehäuse 1 bzw. der Schaltkammer 9 ortsfest angeordnet sind, sich also nicht zusammen mit dem Kontaktbrückenträger 2 bewegen. Das Bestücken der Schaltkammer 9 mit den Hilfsgegenkontaktstellen 11 erfolgt ebenfalls in der Kontaktbrückenrichtung y von außen auf den Kontaktbrückenträger 2 zu. Das Bestücken mit feststehenden Hilfsgegenkontaktstellen 11 kann unter Umständen sogar dem Fixieren der Hauptabdeckung 15 an der Schaltkammer 9 nachfolgen.Before, together with or after the insertion of the separating elements 14 in the switching chamber 9 and the equipping of the switching chamber 9 with the fixed main counter-contact points 8, the switching chamber 9 is equipped with the stationary auxiliary counter-contact points 11. The auxiliary counter-contact points 11 are referred to as "fixed", because they are arranged stationary in the housing 1 and the switching chamber 9, so do not move together with the contact bridge carrier 2. The loading of the switching chamber 9 with the auxiliary mating contact points 11 also takes place in the contact bridge direction y from the outside to the contact bridge carrier 2. The equipping with fixed auxiliary counter contact points 11 may even follow the fixing of the main cover 15 to the switching chamber 9 under certain circumstances.

Nach dem Bestücken mit den feststehenden Hilfsgegenkontaktstellen 11 wird an der Schaltkammer 9 mindestens eine Hilfsabdeckung 16 fixiert, welche nach dem Fixieren die Hilfsgegenkontaktstellen 11 abdeckt. Das Fixieren der Hilfsabdeckung 16 erfolgt in der Regel - jedoch nicht zwangsweise - nach dem Fixieren der Hauptabdeckungen 15.After fitting with the fixed auxiliary counter-contact points 11 at least one auxiliary cover 16 is fixed to the switching chamber 9, which covers the auxiliary counter contact points 11 after fixing. The fixing of the auxiliary cover 16 is usually - but not necessarily - after fixing the main covers 15th

Bei dem erfindungsgemäßen elektromagnetischen Schaltgerät sind die einzelnen Elemente 1 bis 16 des Schaltgeräts derart aufeinander abgestimmt, dass das Einführen der Trennelemente 14 in die Schaltkammer 9 und das Bestücken der Schaltkammer 9 mit den feststehenden Hauptgegenkontaktstellen 8 und den feststehenden Hilfsgegenkontaktstellen 11 nach dem Einführen des mit dem beweglichen Kontaktbrücken 3, 4 bestückten Kontaktbrückenträgers 2 in die Schaltkammer 9 erfolgen muss. Denn die Trennelemente 14, die Hauptgegenkontaktstellen 8 und die Hilfsgegenkontaktstellen 11 ragen in den Einführraum hinein, der für das Einführen des bestückten Kontaktbrückenträgers 2 benötigt wird.In the electromagnetic switching device according to the invention, the individual elements 1 to 16 of the switching device are such coordinated so that the insertion of the separating elements 14 in the switching chamber 9 and the loading of the switching chamber 9 with the fixed main counter contacts 8 and the stationary auxiliary counter contact points 11 after insertion of the equipped with the movable contact bridges 3, 4 contact bridge carrier 2 must be made in the switching chamber 9. For the separating elements 14, the main counter-contact points 8 and the auxiliary counter-contact points 11 protrude into the insertion, which is required for the insertion of the assembled contact bridge carrier 2.

Weiterhin sind die einzelnen Elemente 1 bis 16 des Schaltgeräts derart aufeinander abgestimmt, dass das Fixieren der Hauptabdeckungen 15 an der Schaltkammer 9 nach dem Einführen der Trennelemente 14 in die Schaltkammer 9 und nach dem Bestücken der Schaltkammer 9 mit den feststehenden Hauptgegenkontaktstellen 8 erfolgen muss. Denn nach dem Fixieren der Hauptabdeckungen 15 ist ein Einführen der Trennelemente 14 und der Hauptgegenkontaktstellen 8 in die Schaltkammer 9 nicht mehr möglich. In manchen Ausgestaltungen müssen auch die Hilfsgegenkontaktstellen 11 bereits vor dem Fixieren der Hauptabdeckungen 15 eingesetzt sein. In anderen Ausgestaltungen kann (oder muss - je nach Ausgestaltung) das Bestücken mit den feststehenden Hilfsgegenkontaktstellen 11 nach dem Fixieren der Hauptabdeckung 15 erfolgen.Furthermore, the individual elements 1 to 16 of the switching device are coordinated such that the fixing of the main covers 15 must be made to the switching chamber 9 after insertion of the separating elements 14 in the switching chamber 9 and after fitting the switching chamber 9 with the fixed main counter contact points 8. Because after fixing the main covers 15, insertion of the separating elements 14 and the main counter-contact points 8 in the switching chamber 9 is no longer possible. In some embodiments, the auxiliary counter contact points 11 must be used before fixing the main covers 15. In other embodiments, (or must - depending on the configuration), the loading with the fixed auxiliary counter-contact points 11 after fixing the main cover 15 done.

Die Zungen 13 des Kontaktbrückenträgers 2 sind - siehe FIG 8 - zwischen den Trennelementen 14 und den Brückenkontaktstellen 7 der Hauptkontaktbrücken 3 angeordnet. Sie bilden gemäß FIG 8 zusammen mit den Trennelementen 14 ein - vorzugsweise doppeltes - Labyrinth. Die erreichte Abschottungswirkung ist hierbei besonders groß, wenn die Trennelemente 14 einen U-förmigen Querschnitt aufweisen. Auch dies ist aus FIG 8 ersichtlich. Alternativ können die Trennelemente 14 beispielsweise als einfache Zungen ausgebildet sein.The tongues 13 of the contact bridge carrier 2 are - see FIG. 8 - Between the separating elements 14 and the bridge contact points 7 of the main contact bridges 3 are arranged. They form according to FIG. 8 together with the separating elements 14 a - preferably double - labyrinth. The achieved Abschottungswirkung here is particularly large when the separating elements 14 have a U-shaped cross-section. This too is out FIG. 8 seen. Alternatively, the separating elements 14 may be formed, for example, as simple tongues.

Die vorliegende Erfindung weist viele Vorteile auf. Insbesondere ergibt sich ein einfacher, zuverlässiger und kostengünstiger Aufbau des elektromagnetischen Schaltgeräts. Weiterhin kann der Kontaktbrückenträger 2 vorab (also bereits vor dem Einführen in die Schaltkammer 9) bestückt werden. Auch ist es auf einfache Weise möglich, ein doppeltes Labyrinth zu realisieren. Schließlich ergibt sich - siehe insbesondere FIG 7 - ein kompakter Gesamtaufbau des elektromagnetischen Schaltgeräts.The present invention has many advantages. In particular, it results in a simpler, more reliable and less expensive Structure of the electromagnetic switching device. Furthermore, the contact bridge carrier 2 can be equipped in advance (that is, even before insertion into the switching chamber 9). Also, it is easily possible to realize a double maze. Finally, it results - see in particular FIG. 7 - A compact overall design of the electromagnetic switching device.

Die obige Beschreibung dient ausschließlich der Erläuterung der vorliegenden Erfindung. Der Schutzumfang der vorliegenden Erfindung soll hingegen ausschließlich durch die beigefügten Ansprüche bestimmt sein.The above description is only for explanation of the present invention. The scope of the present invention, however, is intended to be determined solely by the appended claims.

Claims (7)

  1. Production method for an electromagnetic switching device, in particular a contactor, with the following steps in the sequence listed:
    - Producing a one-piece switching chamber (9), producing a contact bridge carrier (2) and equipping the contact bridge carrier (2) with movable contact bridges (3, 4), with the contact bridges (3, 4) comprising a number of primary contact bridges (3) and at least one auxiliary contact bridge (4);
    - Inserting the contact bridge carrier (2) equipped with the movable contact bridges (3, 4) into the switching chamber (9);
    - Inserting partition elements (14) into the switching chamber (9) so that each partition element (14) is arranged between a bridge contact point (7) of one of the primary contact bridges (3) and a bridge contact point (10) of one of the auxiliary contact bridges (4), and equipping the switching chamber (9) with fixed primary counter-contact points (8);
    - Fixing primary covers (15) to the switching chamber (9) so that the primary covers (15) cover the primary counter-contact points (8) and fix the partition elements (14) in the switching chamber (9).
  2. Production method according to claim 2,
    characterised in that
    the switching chamber (9) is equipped with fixed auxiliary counter-contact points (11) and the switching chamber (9) is equipped with the fixed auxiliary counter-contact points (11) after the contact bridge carrier (2) has been inserted into the switching chamber (9).
  3. Electromagnetic switching device, in particular a contactor, with the following features:
    - The switching device has a one-piece switching chamber (9) and a contact bridge carrier (2).
    - The contact bridge carrier (2) is equipped with movable contact bridges (3, 4).
    - The contact bridges (3, 4) comprise a number of primary contact bridges (3) and at least one auxiliary contact bridge (4).
    - The contact bridge carrier (2) is inserted into the switching chamber (9) and supported there in such a manner that it can be displaced longitudinally in an actuation direction (x).
    - Partition elements (14) are inserted into the switching chamber (9), so that each partition element (14) is arranged between a bridge contact point (7) of one of the primary contact bridges (3) and a bridge contact point (10) of one of the auxiliary contact bridges (4).
    - The switching chamber (9) is equipped with fixed primary counter-contact points (8) and fixed auxiliary counter-contact points (11).
    - Each primary counter-contact point (8) interacts with one of the bridge contact points (7) of one of the primary contact bridges (8) and each auxiliary counter-contact point (11) interacts with one of the bridge contact points (10) of one of the auxiliary contact bridges (4).
    - Primary covers (15) are fixed to the switching chamber (9), so that the primary covers (15) cover the primary counter-contact points (8) and fix the partition elements (14) in the switching chamber (9).
    - The individual elements (1 to 16) of the switching device are tailored to one another in such a manner that insertion of the partition elements (14) into the switching chamber (9) and the equipping of the switching chamber (9) with the fixed primary counter-contact points (8) has to take place after insertion of the contact bridge carrier (2) equipped with the movable contact bridges (3, 4) into the switching chamber (9) and the fixing of the primary covers (15) to the switching chamber (9) has to take place after insertion of the partition elements (14) into the switching chamber (9) and the equipping of the switching chamber (9) with the fixed primary counter-contact points (8).
  4. Switching device according to claim 3,
    characterised in that
    when viewed in the actuation direction (x) each auxiliary contact bridge (4) is arranged above one of the primary contact bridges (3) respectively and the contact bridge carrier (2) has a tongue (13) for each bridge contact point (10) of each auxiliary contact bridge (4), said tongue (13) extending between the bridge contact point (10) of the respective auxiliary contact bridge (4) and the bridge contact point (7) of the corresponding primary contact bridge (3).
  5. Switching device according to claim 4,
    characterised in that
    the partition elements (14) together with the tongues (13) form a labyrinth.
  6. Switching device according to claim 3, 4 or 5,
    characterised in that
    the partition elements (14) have a U-shaped cross-section.
  7. Switching device according to one of claims 3 to 6,
    characterised in that
    the individual elements (1 to 16) of the switching device are tailored to one another in such a manner that the equipping of the switching chamber (9) with the fixed auxiliary counter-contact points (11) has to take place after insertion of the contact bridge carrier (2) into the switching chamber (9).
EP08718352A 2007-04-13 2008-03-31 Production method for an electromagnetic switching device having partition walls between primary and auxiliary contacts and an electromagnetic switching device produced according to the production method Active EP2135272B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007017516A DE102007017516B3 (en) 2007-04-13 2007-04-13 Electromagnetic switching device e.g. contactor, manufacturing method, involves fixing main coverings in switching chamber, so that main coverings cover main counter contact points and fix separation units in switching chamber
PCT/EP2008/053801 WO2008125466A2 (en) 2007-04-13 2008-03-31 Production method for an electromagnetic switching device having partition walls between primary and auxiliary contacts and an electromagnetic switching device produced according to the production method

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EP2135272A2 EP2135272A2 (en) 2009-12-23
EP2135272B1 true EP2135272B1 (en) 2012-12-12

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US (1) US8159321B2 (en)
EP (1) EP2135272B1 (en)
KR (1) KR101405870B1 (en)
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ES2399456T3 (en) 2013-04-01
CN101647083A (en) 2010-02-10
US20100127805A1 (en) 2010-05-27
US8159321B2 (en) 2012-04-17
KR20100016108A (en) 2010-02-12
KR101405870B1 (en) 2014-06-12
WO2008125466A2 (en) 2008-10-23
EP2135272A2 (en) 2009-12-23
WO2008125466A3 (en) 2008-12-11
DE102007017516B3 (en) 2008-04-30
CN101647083B (en) 2012-06-27

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