EP3218912B1 - Rotating contact apparatus for a switch - Google Patents

Rotating contact apparatus for a switch Download PDF

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Publication number
EP3218912B1
EP3218912B1 EP15790577.9A EP15790577A EP3218912B1 EP 3218912 B1 EP3218912 B1 EP 3218912B1 EP 15790577 A EP15790577 A EP 15790577A EP 3218912 B1 EP3218912 B1 EP 3218912B1
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EP
European Patent Office
Prior art keywords
contact
housing
bridge
contact apparatus
stationary counter
Prior art date
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Active
Application number
EP15790577.9A
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German (de)
French (fr)
Other versions
EP3218912A1 (en
Inventor
Louis A.G.M. HEMMER
Hans-Jürgen Sduntzig
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.)
Eaton Intelligent Power Ltd
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Eaton Intelligent Power Ltd
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Publication date
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Publication of EP3218912A1 publication Critical patent/EP3218912A1/en
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Publication of EP3218912B1 publication Critical patent/EP3218912B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • 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
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches

Definitions

  • the invention relates to a rotary contact device for a switch.
  • circuit breakers For switches, in particular circuit breakers double contact devices with parallel contacts are often used to increase the contact force during a high current flow and thereby avoid contacts lift and there is a break in contact. Furthermore, especially in circuit breakers for high currents long opening distances for the contacts are required, for example, to facilitate the erasure of arcing occurring at the contact opening. However, long contact opening distances often require large switch housings. By a rotating contact device, the space requirement due to a large opening distance can be at least reduced slightly.
  • a switch with a rotary contact device is known for example from the US patent publication US2014 / 0091062A1 known.
  • a rotary contact device having the features of the preamble of claim 1 is disclosed in US Pat US 5,945,650 known.
  • the document EP 0 829 890 A1 discloses a rotary contact device according to the preamble of claim 1.
  • the object of the present invention is now to present a more compact rotary contact device for a switch.
  • An embodiment of the invention relates to a rotary contact device for a switch with a contactor housing and a contact housing, a bearing provided in the contactor housing bearing for the contact housing, wherein the contact housing is rotatably mounted in the bearing about an axis of rotation, a contact housing mounted in the bearing and with this rotating contact bridge, each having at its ends a receptacle for a fixed mating contact, wherein the receptacles protrude from corresponding openings of the contact housing so far that they come into engagement with the stationary mating contacts upon rotation of the contact housing and an electrical contact between the stationary mating contacts over the contact bridge arise can, and at least one spring clip, which is arranged between the contact housing and the contact bridge such that the contact bridge in the contact housing in approximately perpendicular to the plane of rotation the contact device is resiliently mounted.
  • the contact housing according to the invention is approximately cylindrical and has on its lateral surface at least partially a gear portion, and the contactor housing has an opening through which the gear portion protrudes, so that the contact housing via a in the Gear portion engaging gear (a non-contact device mechanism) can be placed in a rotational movement to open or close the contacts between the fixed mating contacts and the recordings.
  • the rotating contact device can be made more compact, since the contactor housing may be formed with the bearing for the contact housing approximately cuboid, and the mechanism for rotating the contact housing can on a narrow side of the cuboidal contactor housing may be disposed over the rotating contactor such that the total extent of the rotating contactor with a drive mechanism in the axis of rotation may be substantially smaller as compared to the extent perpendicular to the axis of rotation.
  • the present invention provides in particular by the arrangement of the gear portion of the Outer surface of the cylindrically shaped contact housing the ability to make much more compact rotary contact devices in which a drive mechanism can be arranged above the contact devices, which in addition the extension of the entire assembly in the axis of rotation substantially less precipitates than rotating contact devices with before or after in the rotation axis arranged drive mechanism.
  • the contactor housing may comprise two housing half-shells
  • the bearing may be formed in at least one of the two housing half-shells
  • at least one of the two housing half shells may have the opening for the gear section of the contact housing on a side approximately perpendicular to the axis of rotation.
  • the contact housing may have two almost identically shaped housing shells, each having plug-in connections and a bearing for the contact bridge and the at least one spring clip for mounting the contact housing. As a result, the assembly of the contact device is facilitated.
  • the contact bridge may have an approximately rectangular shaped central part, on the short sides of each a receptacle for a fixed counter-contact is provided.
  • the contact bridge can be made in one piece from sheet metal, for example by punching.
  • the receptacles for the fixed mating contacts can each be designed as claw-shaped mating contact receiving parts and each aligned such that their opposite jaws are located in different planes that are parallel to the plane of rotation of the contact device.
  • Another embodiment of the invention relates to a rotary switch with a rotary contact device according to the invention and as described herein. Further advantages and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings.
  • Fig. 1 shows a rotary switch 12 with two contact terminals 120 and 122 for attachment of leads and a rotary contact device 10 for closing and interrupting an electrical connection of the two contact terminals 120 and 122.
  • the contact device 10 has in its contactor housing 100, which consists of two housing half shells 100a and 100b, an opening 102 in the front housing half-shell 100 a for moving the contact apparatus of the device 10. Through the opening protrudes a gear portion 148 through which a gear (not shown) mechanism of the contact apparatus can be set in a rotational movement to open the contacts of the contactor or close.
  • the front housing half shell 100a has - as in Fig. 1 can be seen - in addition to an opening in which a shaft of the rotatable about a rotation axis 18 contact apparatus can be stored.
  • Fig. 2 shows the internal structure of the contact device 10 of the rotary switch 12: iin the rear housing half shell 100b of the contactor housing 100, a bearing 16 is provided for a contact housing 14 of the rotary contact apparatus of the contact device 10.
  • the approximately cylindrical shaped contact housing 14 is rotatably mounted in the bearing 16 of the housing 100 about the axis of rotation 18.
  • a bearing for the contact housing 14 may be provided in the front housing half shell 100a.
  • the front housing half shell 100a may be at least partially identical to the rear housing half shell 100b.
  • Fig. 3 shows the internal structure of the contact housing 14, the - as in Fig. 5 shown - two in particular identical, made of an electrically insulating plastic housing shells 140 and 142 which can be plugged together via plug connections 144 and 146 to the housing 14. Between the two mated shells 140 and 142, a bearing for an electrically conductive contact bridge 20 is provided, which serves for electrically connecting the two contact terminals 120 and 122. At least one spring clip 30 is disposed between the contact bridge 20 and one of the housing shells 140 and 142, whereby the contact bridge 20 is mounted resiliently approximately perpendicular to the plane of rotation of the contact device 10 and the contact housing 14.
  • the spring clamp is primarily used to compensate for tolerances, such as manufacturing tolerances of the rotating contact device 10 and tolerances by plastic deformation of the rotating contact device 10, which may occur during operation.
  • the contact bridge 20 has, as in Fig. 3 and 4 can be seen, an approximately rectangular shaped center part on the short sides of each a claw-shaped receiving part 22, 24 is provided for the fixed mating contacts 26, 28.
  • the receiving parts 22, 24 are in this case aligned such that their opposite jaws are located in different planes, which are parallel to the plane of rotation of the contact device.
  • the claw-shaped receiving parts 22, 24 are pushed over the respective fixed mating contacts 26, 28 (as in FIG Fig. 4 shown), so that the mating contacts 26, 28 are located between the jaws of the receiving parts 22, 24.
  • the claw-shaped receiving parts 22, 24 are in this case dimensioned and shaped so that it comes with an inserted into them fixed counter-contact 26, 28 to an electrical contact and with the fixed mating contacts 26, 28 electrically connected contact terminals 120, 122 via the contact bridge 20th are electrically connected.
  • the engagement of the fixed mating contacts 26, 28 in the claw-shaped receiving parts 22, 24 is also facilitated by the at least one spring clip 30 and a blade-shaped formation of the fixed mating contacts 26, 28.

Description

Die Erfindung betrifft eine rotierende Kontaktvorrichtung für einen Schalter.The invention relates to a rotary contact device for a switch.

Für Schalter, insbesondere Leistungsschalter werden häufig Doppelkontaktvorrichtungen mit parallelen Kontakten eingesetzt, um die Kontaktkraft während eines hohen Stromflusses zu vergrößern und dadurch zu vermeiden, dass Kontakte abheben und es zu einer Kontaktunterbrechung kommt. Weiterhin sind vor allem bei Leistungsschaltern für hohe Ströme lange Öffnungsstrecken für die Kontakte erforderlich, beispielsweise um das Löschen von beim Kontaktöffnen auftretenden Lichtbögen zu erleichtern. Lange Kontakt-Öffnungsstrecken bedingen jedoch häufig große Schaltergehäuse. Durch eine rotierende Kontaktvorrichtung kann der Platzbedarf aufgrund einer großen Öffnungsstrecke zumindest etwas reduziert werden. Ein Schalter mit einer rotierenden Kontaktvorrichtung ist beispielsweise aus der US-Patentveröffentlichung US2014/0091062A1 bekannt. Eine rotierende Kontaktvorrichtung mit den Merkmalen des Oberbegriffs von Anspruch 1 ist auf der US-Patentschrift US 5,945,650 bekannt. Weitere rotierende Kontaktvorrichtungen sind aus der US-Patentschrift US 3,632,935 , der internationalen Veröffentlichung WO 2014/170528A1 und der deutschen Offenlegungsschrift DE 10 2011 077 883 A1 bekannt. Die aus diesen Veröffentlichungen bekannten rotierenden Kontaktvorrichtung sind allerdings teilweise recht voluminös und benötigen daher einen relativ großen Bauraum.For switches, in particular circuit breakers double contact devices with parallel contacts are often used to increase the contact force during a high current flow and thereby avoid contacts lift and there is a break in contact. Furthermore, especially in circuit breakers for high currents long opening distances for the contacts are required, for example, to facilitate the erasure of arcing occurring at the contact opening. However, long contact opening distances often require large switch housings. By a rotating contact device, the space requirement due to a large opening distance can be at least reduced slightly. A switch with a rotary contact device is known for example from the US patent publication US2014 / 0091062A1 known. A rotary contact device having the features of the preamble of claim 1 is disclosed in US Pat US 5,945,650 known. Further rotary contact devices are known from the US patent US 3,632,935 , the international publication WO 2014 / 170528A1 and the German Offenlegungsschrift DE 10 2011 077 883 A1 known. However, the known from these publications rotating contact device are sometimes quite bulky and therefore require a relatively large amount of space.

Das Dokument EP 0 829 890 A1 offenbart eine rotierende Kontaktvorrichtung gemäß dem Oberbegriff des Anspruchs 1.The document EP 0 829 890 A1 discloses a rotary contact device according to the preamble of claim 1.

Aufgabe der vorliegenden Erfindung ist es nun, eine kompaktere rotierende Kontaktvorrichtung für einen Schalter vorzustellen.The object of the present invention is now to present a more compact rotary contact device for a switch.

Diese Aufgabe wird durch die Gegenstände der unabhängigen Ansprüche gelöst. Weitere Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche.This object is solved by the subject matters of the independent claims. Further embodiments of the invention are the subject of the dependent claims.

Eine Ausführungsform der Erfindung betrifft eine rotierende Kontaktvorrichtung für einen Schalter mit einem Kontaktvorrichtungsgehäuse und einem Kontaktgehäuse, einem im Kontaktvorrichtungsgehäuse vorgesehenen Lager für das Kontaktgehäuse, wobei das Kontaktgehäuse in dem Lager um eine Rotationsachse drehbar gelagert ist, einer im Kontaktgehäuse gelagerten und mit diesem rotierenden Kontaktbrücke, die an ihren Enden jeweils eine Aufnahme für einen feststehenden Gegenkontakt aufweist, wobei die Aufnahmen aus entsprechenden Öffnungen des Kontaktgehäuses soweit herausragen, dass sie mit den feststehenden Gegenkontakten bei einer Rotation des Kontaktgehäuses in Eingriff kommen und ein elektrischer Kontakt zwischen den feststehenden Gegenkontakten über die Kontaktbrücke entstehen kann, und mindestens einer Federklemme, die zwischen dem Kontaktgehäuse und der Kontaktbrücke derart angeordnet ist, dass die Kontaktbrücke im Kontaktgehäuse in etwa senkrecht zur Rotationsebene der Kontaktvorrichtung federnd gelagert ist. Um eine kompaktere Bauform dieser rotierenden Kontaktvorrichtung zu ermöglichen, ist erfindungsgemäß das Kontaktgehäuse etwa zylinderförmige ausgebildet und weist an seiner Mantelfläche zumindest teilweise einen Zahnradabschnitt auf, und das Kontaktvorrichtungsgehäuse weist eine Öffnung auf, durch die der Zahnradabschnitt ragt, so dass das Kontaktgehäuse über ein in den Zahnradabschnitt eingreifendes Zahnrad (eines nicht zur Kontaktvorrichtung gehörenden Mechanismus) in eine Drehbewegung zum Öffnen oder zum Schließen der Kontakte zwischen den feststehenden Gegenkontakten und den Aufnahmen versetzt werden kann. Dadurch, dass ein Zahnradabschnitt an der Mantelfläche des zylinderförmig ausgebildeten Kontaktgehäuses vorgesehen ist, kann die rotierende Kontaktvorrichtung kompakter ausgebildet werden, da das Kontaktvorrichtungsgehäuse mit dem Lager für das Kontaktgehäuse etwa quaderförmig ausgebildet sein kann, und der Mechanismus zum Drehen des Kontaktgehäuses kann an einer schmalen Seite des quaderförmigen Kontaktvorrichtungsgehäuses über der rotierenden Kontaktvorrichtung angeordnet sein, so dass die gesamte Ausdehnung der rotierenden Kontaktvorrichtung mit einem Antriebs-Mechanismus in der Rotationsachse im Vergleich zur Ausdehnung senkrecht zur Rotationsachse wesentlich kleiner sein kann. Kurz zusammengefasst schafft die vorliegende Erfindung insbesondere durch die Anordnung des Zahnradabschnitts an der Mantelfläche des zylinderförmig ausgebildeten Kontaktgehäuses die Möglichkeit, wesentlich kompaktere rotierende Kontaktvorrichtungen zu gestalten, bei denen ein Antriebs-Mechanismus oberhalb der Kontaktvorrichtungen angeordnet werden kann, wodurch zusätzlich die Erstreckung der gesamten Anordnung in der Rotationsachse wesentlich geringer ausfällt als bei rotierenden Kontaktvorrichtungen mit davor oder dahinter in der Rotationsachse angeordnetem Antriebs-Mechanismus.An embodiment of the invention relates to a rotary contact device for a switch with a contactor housing and a contact housing, a bearing provided in the contactor housing bearing for the contact housing, wherein the contact housing is rotatably mounted in the bearing about an axis of rotation, a contact housing mounted in the bearing and with this rotating contact bridge, each having at its ends a receptacle for a fixed mating contact, wherein the receptacles protrude from corresponding openings of the contact housing so far that they come into engagement with the stationary mating contacts upon rotation of the contact housing and an electrical contact between the stationary mating contacts over the contact bridge arise can, and at least one spring clip, which is arranged between the contact housing and the contact bridge such that the contact bridge in the contact housing in approximately perpendicular to the plane of rotation the contact device is resiliently mounted. In order to enable a more compact design of this rotating contact device, the contact housing according to the invention is approximately cylindrical and has on its lateral surface at least partially a gear portion, and the contactor housing has an opening through which the gear portion protrudes, so that the contact housing via a in the Gear portion engaging gear (a non-contact device mechanism) can be placed in a rotational movement to open or close the contacts between the fixed mating contacts and the recordings. Characterized in that a gear portion is provided on the lateral surface of the cylindrical contact housing, the rotating contact device can be made more compact, since the contactor housing may be formed with the bearing for the contact housing approximately cuboid, and the mechanism for rotating the contact housing can on a narrow side of the cuboidal contactor housing may be disposed over the rotating contactor such that the total extent of the rotating contactor with a drive mechanism in the axis of rotation may be substantially smaller as compared to the extent perpendicular to the axis of rotation. In short, the present invention provides in particular by the arrangement of the gear portion of the Outer surface of the cylindrically shaped contact housing the ability to make much more compact rotary contact devices in which a drive mechanism can be arranged above the contact devices, which in addition the extension of the entire assembly in the axis of rotation substantially less precipitates than rotating contact devices with before or after in the rotation axis arranged drive mechanism.

Insbesondere kann das Kontaktvorrichtungsgehäuse zwei Gehäuse-Halbschalen aufweisen, das Lager kann in zumindest einer der beiden Gehäuse-Halbschalen ausgebildet sein, und zumindest eine der beiden Gehäuse-Halbschalen kann an einer etwa senkrecht zur Rotationsachse befindlichen Seite die Öffnung für den Zahnradabschnitt des Kontaktgehäuses aufweisen. Hierdurch wird ein kompaktes und technisch mit geringem Aufwand zu realisierendes Kontaktvorrichtungsgehäuse geschaffen.In particular, the contactor housing may comprise two housing half-shells, the bearing may be formed in at least one of the two housing half-shells, and at least one of the two housing half shells may have the opening for the gear section of the contact housing on a side approximately perpendicular to the axis of rotation. As a result, a compact and technically feasible with little effort contact device housing is created.

Das Kontaktgehäuse kann zwei nahezu identisch geformte Gehäuseschalen aufweisen, die zum Montieren des Kontaktgehäuses jeweils Steckverbindungen und ein Lager für die Kontaktbrücke und die mindestens eine Federklemme aufweisen. Hierdurch wird der Zusammenbau der Kontaktvorrichtung erleichtert.The contact housing may have two almost identically shaped housing shells, each having plug-in connections and a bearing for the contact bridge and the at least one spring clip for mounting the contact housing. As a result, the assembly of the contact device is facilitated.

Die Kontaktbrücke kann ein etwa rechteckförmig ausgebildetes Mittelteil aufweisen, an dessen kurzen Seiten jeweils eine Aufnahme für einen feststehenden Gegenkontakt vorgesehen ist. Insbesondere kann die Kontaktbrücke einstückig aus Metallblech hergestellt sein, beispielsweise durch Stanzen.The contact bridge may have an approximately rectangular shaped central part, on the short sides of each a receptacle for a fixed counter-contact is provided. In particular, the contact bridge can be made in one piece from sheet metal, for example by punching.

Die Aufnahmen für die feststehenden Gegenkontakte können jeweils als klauenförmige Gegenkontakt-Aufnahmeteile ausgebildet und jeweils derart ausgerichtet sein, dass sich ihre gegenüberliegenden Klauen in verschieden Ebenen befinden, die parallel zur Rotationsebene der Kontaktvorrichtung liegen.The receptacles for the fixed mating contacts can each be designed as claw-shaped mating contact receiving parts and each aligned such that their opposite jaws are located in different planes that are parallel to the plane of rotation of the contact device.

Eine weitere Ausführungsform der Erfindung betrifft einen Drehschalter mit einer rotierenden Kontaktvorrichtung nach der Erfindung und wie hierin beschrieben. Weitere Vorteile und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung in Verbindung mit den in den Zeichnungen dargestellten Ausführungsbeispielen.Another embodiment of the invention relates to a rotary switch with a rotary contact device according to the invention and as described herein. Further advantages and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings.

In der Beschreibung, in den Ansprüchen, in der Zusammenfassung und in den Zeichnungen werden die in der hinten angeführten Liste der Bezugszeichen verwendeten Begriffe und zugeordneten Bezugszeichen verwendet.In the description, in the claims, in the abstract and in the drawings, the terms and associated reference numerals used in the list of reference numerals recited below are used.

Die Zeichnungen zeigen in

  • Fig. 1 eine perspektivische Ansicht eines Ausführungsbeispiels eines Drehschalters mit einer rotierenden Kontaktvorrichtung gemäß der Erfindung;
  • Fig. 2 eine perspektivische Ansicht eines Teilschnitts durch den Drehschalter von Fig. 1;
  • Fig. 3 und 4 perspektivische Ansichten eines weiteren Teilschnitts durch den Drehschalter von Fig. 1, der sich in einer Ausschaltstellung (Fig. 3) und in einer Einschaltstellung (Fig. 4) befindet; und
  • Fig. 5 eine perspektivische Ansicht Schnitts durch das Kontaktgehäuse des Drehschalters von Fig. 1.
The drawings show in
  • Fig. 1 a perspective view of an embodiment of a rotary switch with a rotary contact device according to the invention;
  • Fig. 2 a perspective view of a partial section through the rotary switch of Fig. 1 ;
  • Fig. 3 and 4 perspective views of a further partial section through the rotary switch of Fig. 1 who is in an off position ( Fig. 3 ) and in a closed position ( Fig. 4 ) is located; and
  • Fig. 5 a perspective view section through the contact housing of the rotary switch of Fig. 1 ,

In der folgenden Beschreibung können gleiche, funktional gleiche und funktional zusammenhängende Elemente mit den gleichen Bezugszeichen versehen sein. Absolute Werte sind im Folgenden nur beispielhaft angegeben und sind nicht als die Erfindung einschränkend zu verstehen.In the following description, identical, functionally identical and functionally connected elements may be provided with the same reference numerals. Absolute values are given below by way of example only and are not to be construed as limiting the invention.

Fig. 1 zeigt einen Drehschalter 12 mit zwei Kontaktanschlüssen 120 und 122 zur Befestigung von Zuleitungen und einer rotierenden Kontaktvorrichtung 10 zum Schließen und Unterbrechen einer elektrischen Verbindung der beiden Kontaktanschlüsse 120 und 122. Die Kontaktvorrichtung 10 weist in ihrem Kontaktvorrichtungsgehäuse 100, das aus zwei Gehäuse-Halbschalen 100a und 100b zusammengesetzt ist, eine Öffnung 102 in der vorderen Gehäuse-Halbschale 100a zum Bewegen des Kontaktapparates der Vorrichtung 10 auf. Durch die Öffnung ragt ein Zahnradabschnitt 148, über den mit einem Zahnrad eines (nicht dargestellten) Mechanismus der Kontaktapparat in eine Drehbewegung versetzt werden kann, um die Kontakte des Kontaktapparates zu öffnen oder zu schließen. Die vordere Gehäuse-Halbschale 100a weist - wie in Fig. 1 erkennbar ist - zudem eine Öffnung auf, in der eine Welle des um eine Rotationsachse 18 drehbaren Kontaktapparates gelagert sein kann. Fig. 1 shows a rotary switch 12 with two contact terminals 120 and 122 for attachment of leads and a rotary contact device 10 for closing and interrupting an electrical connection of the two contact terminals 120 and 122. The contact device 10 has in its contactor housing 100, which consists of two housing half shells 100a and 100b, an opening 102 in the front housing half-shell 100 a for moving the contact apparatus of the device 10. Through the opening protrudes a gear portion 148 through which a gear (not shown) mechanism of the contact apparatus can be set in a rotational movement to open the contacts of the contactor or close. The front housing half shell 100a has - as in Fig. 1 can be seen - in addition to an opening in which a shaft of the rotatable about a rotation axis 18 contact apparatus can be stored.

Fig. 2 zeigt den inneren Aufbau der Kontaktvorrichtung 10 des Drehschalters 12: iin der hinteren Gehäuse-Halbschale 100b des Kontaktvorrichtungsgehäuses 100 ist ein Lager 16 für ein Kontaktgehäuse 14 des drehbaren Kontaktapparates der Kontaktvorrichtung 10 vorgesehen. Das etwa zylinderförmig geformte Kontaktgehäuses 14 ist in dem Lager 16 des Gehäuses 100 um die Rotationsachse 18 drehbar gelagert. In der vorderen Gehäuse-Halbschale 100a kann zusätzlich ein Lager für das Kontaktgehäuse 14 vorgesehen sein. Insofern kann die vordere Gehäuse-Halbschale 100a zumindest teilweise identisch wie die hintere Gehäuse-Halbschale 100b ausgebildet sein. Fig. 2 shows the internal structure of the contact device 10 of the rotary switch 12: iin the rear housing half shell 100b of the contactor housing 100, a bearing 16 is provided for a contact housing 14 of the rotary contact apparatus of the contact device 10. The approximately cylindrical shaped contact housing 14 is rotatably mounted in the bearing 16 of the housing 100 about the axis of rotation 18. In addition, a bearing for the contact housing 14 may be provided in the front housing half shell 100a. As such, the front housing half shell 100a may be at least partially identical to the rear housing half shell 100b.

Fig. 3 zeigt den inneren Aufbau des Kontaktgehäuses 14, das - wie in Fig. 5 gezeigt - zwei insbesondere identische, aus einem elektrisch isolierenden Kunststoff hergestellte Gehäuseschalen 140 und 142 aufweist, die über Steckverbindungen 144 und 146 zum Gehäuse 14 zusammengesteckt werden können. Zwischen den beiden zusammengesteckten Schalen 140 und 142 ist ein Lager für eine elektrisch leitende Kontaktbrücke 20 vorgesehen, die zum elektrischen Verbinden der beiden Kontaktanschlüsse 120 und 122 dient. Mindestens eine Federklemme 30 ist zwischen der Kontaktbrücke 20 und einer der Gehäuseschalen 140 bzw. 142 angeordnet, wodurch die Kontaktbrücke 20 in etwa senkrecht zur Rotationsebene der Kontaktvorrichtung 10 und des Kontaktgehäuses 14 federnd gelagert ist. Die Federklemme dient vor allem dazu Toleranzen auszugleichen, wie beispielsweise Fertigungstoleranzen der rotierenden Kontaktvorrichtung 10 und Toleranzen durch plastische Verformung der rotierenden Kontaktvorrichtung 10, die im Betrieb auftreten können. Fig. 3 shows the internal structure of the contact housing 14, the - as in Fig. 5 shown - two in particular identical, made of an electrically insulating plastic housing shells 140 and 142 which can be plugged together via plug connections 144 and 146 to the housing 14. Between the two mated shells 140 and 142, a bearing for an electrically conductive contact bridge 20 is provided, which serves for electrically connecting the two contact terminals 120 and 122. At least one spring clip 30 is disposed between the contact bridge 20 and one of the housing shells 140 and 142, whereby the contact bridge 20 is mounted resiliently approximately perpendicular to the plane of rotation of the contact device 10 and the contact housing 14. The spring clamp is primarily used to compensate for tolerances, such as manufacturing tolerances of the rotating contact device 10 and tolerances by plastic deformation of the rotating contact device 10, which may occur during operation.

Die Kontaktbrücke 20 weist, wie in Fig. 3 und 4 zu erkennen ist, ein etwa rechteckförmig ausgebildetes Mittelteil auf, an dessen kurzen Seiten jeweils ein klauenförmig ausgebildetes Aufnahmeteil 22, 24 für die feststehenden Gegenkontakte 26, 28 vorgesehen ist. Die Aufnahmeteile 22, 24 sind hierbei derart ausgerichtet, dass sich ihre gegenüberliegenden Klauen in verschieden Ebenen befinden, die parallel zur Rotationsebene der Kontaktvorrichtung liegen.The contact bridge 20 has, as in Fig. 3 and 4 can be seen, an approximately rectangular shaped center part on the short sides of each a claw-shaped receiving part 22, 24 is provided for the fixed mating contacts 26, 28. The receiving parts 22, 24 are in this case aligned such that their opposite jaws are located in different planes, which are parallel to the plane of rotation of the contact device.

Durch Drehen des Kontaktgehäuses 14 über den durch die Öffnung 102 ragenden Zahnradabschnitt 148 von einer Ausschaltstellung (Fig. 3) in eine Einschaltstellung (Fig. 4) des Drehschalters 12 werden die klauenförmig ausgebildeten Aufnahmeteile 22, 24 über die jeweiligen feststehenden Gegenkontakte 26, 28 geschoben (wie in Fig. 4 gezeigt), so dass sich die Gegenkontakte 26, 28 zwischen den Klauen der Aufnahmeteile 22, 24 befinden. Die klauenförmig ausgebildeten Aufnahmeteile 22, 24 sind hierbei derart bemessen und geformt, dass es mit einem in sie eingeschobenen feststehenden Gegenkontakt 26, 28 zu einem elektrischen Kontakt kommt und die mit den feststehenden Gegenkontakten 26, 28 elektrische verbundenen Kontaktanschlüsse 120, 122 über die Kontaktbrücke 20 elektrisch verbunden sind. Das Eingreifen der feststehenden Gegenkontakte 26, 28 in die klauenförmig ausgebildeten Aufnahmeteile 22, 24 wird zudem durch die mindestens eine Federklemme 30 und eine klingenförmige Ausformung der feststehenden Gegenkontakte 26, 28 erleichtert.By rotating the contact housing 14 via the projecting through the opening 102 gear portion 148 of an open position ( Fig. 3 ) into a closed position ( Fig. 4 ) of the rotary switch 12, the claw-shaped receiving parts 22, 24 are pushed over the respective fixed mating contacts 26, 28 (as in FIG Fig. 4 shown), so that the mating contacts 26, 28 are located between the jaws of the receiving parts 22, 24. The claw-shaped receiving parts 22, 24 are in this case dimensioned and shaped so that it comes with an inserted into them fixed counter-contact 26, 28 to an electrical contact and with the fixed mating contacts 26, 28 electrically connected contact terminals 120, 122 via the contact bridge 20th are electrically connected. The engagement of the fixed mating contacts 26, 28 in the claw-shaped receiving parts 22, 24 is also facilitated by the at least one spring clip 30 and a blade-shaped formation of the fixed mating contacts 26, 28.

Bezugszeichenreference numeral

1010
rotierende Kontaktvorrichtungrotating contact device
100100
KontaktvorrichtungsgehäuseContact device housing
100a100a
vordere Gehäuse-Halbschale des Kontaktvorrichtungsgehäuses 100front housing half-shell of the contactor housing 100th
100b100b
hintere Gehäuse-Halbschale des Kontaktvorrichtungsgehäuses 100102 Antriebsöffnungrear housing half shell of the contactor housing 100102 drive opening
1212
Drehschalterrotary switch
120120
KontaktanschlussContact Termination
122122
KontaktanschlussContact Termination
1414
KontaktgehäuseContact housing
140140
KontaktgehäuseschaleContact housing shell
142142
KontaktgehäuseschaleContact housing shell
144144
Gehäuseschale-SteckverbindungShell connector
146146
Gehäuseschale-SteckverbindungShell connector
148148
Zahnradabschnittgear portion
1616
Kontaktgehäuse-LagerContact housing bearing
1818
Kontaktgehäuse-RotationsachseContact housing axis of rotation
2020
KontaktbrückeContact bridge
2222
klauenförmiges Gegenkontakt-Aufnahmeteilclaw-shaped mating contact receiving part
2424
klauenförmiges Gegenkontakt-Aufnahmeteilclaw-shaped mating contact receiving part
2626
feststehender Gegenkontaktfixed counter contact
2828
feststehender Gegenkontaktfixed counter contact
3030
Federklemmespring clip

Claims (6)

  1. Rotating contact apparatus (10) for a switch (12) with a contact apparatus housing (100) and a contact housing (14), a support (16) provided in the contact apparatus housing (100) for the contact housing, wherein the contact housing is rotatably supported in the support around a rotational axis (18), a contact bridge (20) supported in the contact housing and rotating with same, which has at each of its ends a receiving part (22, 24) for a stationary counter contact (26, 28), wherein the receiving parts protrude out of corresponding openings in the contact housing so far that they engage with the stationary counter contacts when the contact housing is rotated and an electrical contact can occur between the stationary counter contacts via the contact bridge, and at least one spring clamp (30) which is disposed between the contact housing and the contact bridge such that the contact bridge is spring-mounted in the contact housing approximately perpendicularly to the rotation plane of the contact apparatus, wherein the contact housing (14) is formed approximately cylinder -shaped, characterised in that the contact housing (14) has at its jacket surface at least partially a gear portion (148), and the contact apparatus housing (100) has an opening (102) through which the gear portion (148) protrudes so that the contact housing (14) by means of a gear engaging into the gear portion (148) can be brought into a rotational movement for opening or for closing the contact between the stationary counter contacts (26, 28) and the receiving parts (22, 24).
  2. Contact apparatus according to claim 1, characterised in that the contact apparatus housing (100) has two housing half shells (100a, 100b), the support (16) is formed in at least one of the two housing half shells (100b) and at least one of the two housing half shells (100a) has at a side situated approximately perpendicularly to the rotational axis (18) the opening (102) for the gear section (148) of the contact housing (14).
  3. Contact apparatus according to claim 1 or 2, characterised in that the contact housing (14) has two virtually identically formed housing shells (140, 142), which for mounting the contact housing each have plug connections (144, 146) and a support for the contact bridge and the at least one spring clamp.
  4. Contact apparatus according to claim 1, 2 or 3, characterised in that the contact bridge has an approximately rectangularly formed middle section, at the short sides of which is in each case provided a receiving part for a stationary counter contact (22, 24).
  5. Contact apparatus according to claim 4, characterised in that the receiving parts for the stationary counter contacts are each formed as claw-shaped counter contact receiving parts (22, 24) and are each positioned such that their opposing claws are situated on different planes which lie parallel to the rotational plane of the contact apparatus.
  6. Rotary switch (12) with a rotating contact apparatus (10) according to one of the preceding claims.
EP15790577.9A 2014-11-11 2015-11-06 Rotating contact apparatus for a switch Active EP3218912B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014116400.8A DE102014116400A1 (en) 2014-11-11 2014-11-11 Rotary contact device for a switch
PCT/EP2015/075894 WO2016075039A1 (en) 2014-11-11 2015-11-06 Rotating contact apparatus for a switch

Publications (2)

Publication Number Publication Date
EP3218912A1 EP3218912A1 (en) 2017-09-20
EP3218912B1 true EP3218912B1 (en) 2018-09-26

Family

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Application Number Title Priority Date Filing Date
EP15790577.9A Active EP3218912B1 (en) 2014-11-11 2015-11-06 Rotating contact apparatus for a switch

Country Status (6)

Country Link
US (1) US20170316900A1 (en)
EP (1) EP3218912B1 (en)
CN (1) CN107077979A (en)
CA (1) CA2961724A1 (en)
DE (1) DE102014116400A1 (en)
WO (1) WO2016075039A1 (en)

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CN107934673B (en) * 2017-11-14 2019-10-18 菱创智能科技（常熟）有限公司 A kind of cable production tension adjustment level adjuster
GB2571365A (en) * 2018-02-23 2019-08-28 Eaton Intelligent Power Ltd Electrical Switchgear
EP3537465B1 (en) * 2018-03-09 2020-10-21 Gorlan Team, S.L.U. Cam actuated switch module and manufacturing method thereof
DE102021210856A1 (en) * 2021-09-28 2023-03-30 Siemens Aktiengesellschaft Switch shaft with an integrated coupling piece, assembly method for such a switch shaft, manufacturing method for such a switch shaft and gas-insulated switchgear with such a switch shaft
CN114360956A (en) * 2022-01-26 2022-04-15 浙江奔一电气有限公司 Rotating switch moving contact component for physically isolating electric arc
DE102022205450B3 (en) 2022-05-30 2023-09-28 Volkswagen Aktiengesellschaft Contactor arrangement for a traction network and traction network of an electric vehicle

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US3632935A (en) * 1970-01-22 1972-01-04 Gen Electric Double blade rotor switch with blades insertable into rotatable shaft
FR2753563B1 (en) * 1996-09-16 1998-10-16 Schneider Electric Sa MULTIPOLAR ELECTRIC SWITCH HAVING AN ELEMENTAL SWITCHING BAR BY POLE
US5945650A (en) * 1998-04-02 1999-08-31 Siemens Energy & Automation,Inc. Polyphase rotary switch including arc chamber system with arc grids, line shields and baffles
FR2898212B1 (en) * 2006-03-03 2008-05-16 Socomec Sa Sa AUTOMATED CONTROL MODULE FOR AN ELECTRICAL CUTTING APPARATUS AND AN ELECTRICAL CUTTING APPARATUS EQUIPPED WITH SUCH A CONTROL MODULE
FI123561B (en) * 2011-06-07 2013-07-15 Abb Oy Switch
DE102011077883A1 (en) * 2011-06-21 2012-12-27 Siemens Aktiengesellschaft Electric power switch has electrical contact bridge that is permanently held in OFF position for short periods after pivoting contact bridge from ON position to OFF position
CN103366978B (en) * 2012-03-27 2015-11-18 Asco电力技术公司 A kind of electrical source on-off switching mechanism
CN105308705B (en) * 2013-04-15 2019-04-12 Abb 有限公司 Electric switch unit

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Also Published As

Publication number Publication date
CN107077979A (en) 2017-08-18
US20170316900A1 (en) 2017-11-02
CA2961724A1 (en) 2016-05-19
WO2016075039A1 (en) 2016-05-19
DE102014116400A1 (en) 2016-05-12
EP3218912A1 (en) 2017-09-20

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