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EP1529302A1 - Electrical switchgear - Google Patents

Electrical switchgear

Info

Publication number
EP1529302A1
EP1529302A1 EP03793698A EP03793698A EP1529302A1 EP 1529302 A1 EP1529302 A1 EP 1529302A1 EP 03793698 A EP03793698 A EP 03793698A EP 03793698 A EP03793698 A EP 03793698A EP 1529302 A1 EP1529302 A1 EP 1529302A1
Authority
EP
European Patent Office
Prior art keywords
connection
connection means
contact
switching device
designed
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.)
Granted
Application number
EP03793698A
Other languages
German (de)
French (fr)
Other versions
EP1529302B2 (en
EP1529302B1 (en
Inventor
Norbert Rösner
Karsten Gerving
Günter Baujan
Klaus Dauer
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 Electrical IP GmbH and Co KG
Original Assignee
Moeller GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=28051356&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1529302(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Moeller GmbH filed Critical Moeller GmbH
Publication of EP1529302A1 publication Critical patent/EP1529302A1/en
Application granted granted Critical
Publication of EP1529302B1 publication Critical patent/EP1529302B1/en
Publication of EP1529302B2 publication Critical patent/EP1529302B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections

Definitions

  • the invention relates to an electrical switching device according to the preamble of claim 1.
  • the invention relates to switching devices such as contactors, motor protection switches, circuit breakers or circuit breakers or the like.
  • Programmable switching devices such as programmable logic controllers or programmable relays are also contemplated within the scope of the invention.
  • connection contact in the form of a fixed contact on the input and output sides for each pole to be switched.
  • the associated fixed contacts are connected or disconnected via a contact bridge driven by a magnetic drive.
  • the externally accessible fixed contact connections are usually formed via laterally accessible screw connections that can be screwed or loosened from the top of the device or by laterally or from above accessible and again detachable from the side or from above.
  • connection devices A switching device with such connection devices is already known from the publication DE 201 20 504 U1.
  • This switchgear is equipped with screw terminals on one pole side and with other types of connection elements, such as spring clamp elements, on the other opposite pole side.
  • connection terminal for switching devices is known from the publication DE 100 23 851 A1, in which a screw connection provided as a basis can be replaced by a module for a spring terminal connection.
  • the object of the invention is to provide a switching device which is optimized with regard to the connection technology. It is intended both to ensure simple use by the user and to improve flexibility with regard to the variety of connection options.
  • each pole has at least one incoming and one outgoing connection contact and each of the connection contacts has first connection means for connecting a first external electrical conductor
  • the object is achieved in that at least one of the connection contacts has second connection means for has the connection of a second electrical conductor.
  • the switching device according to the invention has, in a structurally and technologically uncomplicated manner on the outside of the device, both first connection means (such as screw-type terminals or spring-type terminals) designed in a conventional manner and second connection means for additional connecting elements.
  • the second connection means are arranged either closer to the inside or closer to the outside of the switching device.
  • connection contact carries a fixed contact leading to the inside of the device (e.g. in the case of contactors) or a connection point for connection to electrical internal device conductors (e.g. in the case of programmable control devices).
  • the first connection means are designed in the form of conventional screw-type terminals, spring-type terminals (e.g. cage-type spring-type terminals), insulation displacement connections or other connection means.
  • the additional second connection means are designed as means for the non-positive and / or positive connection of a connection element, in particular in the form of a plug connection or a screw connection.
  • the second connection means are designed as central hole receptacles for connection members designed as plug contacts.
  • the hole-like recess - be it closed (hole holder) or open on the edge (lateral recess) - is designed as a punched passage, so that tongue-like extensions projecting outward at least in regions around the recess are formed on the edge.
  • an additional connection option for the connection contact which is accessible from the outside, is realized in the simplest design.
  • Other designs, such as a lateral recess in the connecting member or the contact carrier, are also possible.
  • the second connection means are designed as plug contacts. With a central design of the plug contacts, the first external electrical conductors can easily be inserted into the first connection means past the plug contacts on the left or right or on both sides.
  • the housing consisting of insulating material optionally has predetermined breaking points in an area above the second connection means which define an access area that can be produced by breaking out.
  • the access area can also initially be free (unlocked).
  • Figure 1 a multi-pole contactor in a schematic exploded view
  • connection contacts of the contactor with various first connection means screw-type or spring-type terminals
  • second connection means hole receptacle
  • Figure 2b an alternative embodiment of the second connection means
  • FIG. 3 a detailed representation of the hole holder according to FIG. 2;
  • FIG. 7 an individual perspective view from FIG. 6.
  • Fig. 1 shows a schematic exploded view of the structure of a multi-pole contactor (in the present example, 3-pole or 4-pole with supply connection for the
  • the housing 2 of the contactor is made up of three parts and consists of a base housing part 2a for receiving a magnetic drive, an upper housing part 2b which can be placed on the base housing part 2a and a housing cover 2c.
  • the connection contacts 4 are shown on both sides, which serve for the connection of incoming and outgoing connection lines.
  • the housing 2 can also be formed in two parts or even in one part.
  • Parenthesized as alternative connections to the illustrated connection terminals 4a with spring-loaded connection are also connection terminals 4b with screw-type connection.
  • connection terminals 4a with spring-type terminals are provided for the housing 2 shown.
  • the illustrated cover part 2c is provided for the connection terminals 4a with a spring clamp connection and has a first row of openings 21 for the connection or access of first connection lines 410 with or to first connection means 41 of the connection contact 4a, a second row of (double) Openings 22 for the engagement of a tool (eg screwdriver) and a third row of openings 23 or an opening in the form of an opening slot for the connection of second connection lines 420 with additional second connection means 42 of the connection contact 4.
  • a tool eg screwdriver
  • the additional row of openings 23 (or the opening slot) provided according to the invention is closed in a preferred embodiment of the invention in the initial state via a cover part.
  • the opening can be closed by a reclosable cover part via a snap connection or a film hinge.
  • the opening 23 cannot be closed again by one or more separable housing area (s) outlined by predetermined breaking points, which housing area (s) forms the later access area to the second connection means 42. This ensures a particularly simple construction and avoids additional storage and administration costs for separate cover parts.
  • connection contact 4a is formed with first connection means 41 in the form of spring clamp connections, while in the alternative embodiment screw clamp connections are arranged instead of the spring clamp connections. Both embodiments have in common the design according to the invention with additional second connection means 42.
  • a connection contact 4 according to the invention is preferred by a tongue-like one
  • Connection flag formed which is connected to the inside of the device on electrical device conductors is closed or, as in the present case, simply carries a fixed contact 43 as a contact carrier, which has the first connection means 41 (such as screw-type terminals or spring-type terminals) towards the outside of the device in a conventional manner and the second - preferably designed as a hole receptacle - in the area between these connection points Has connection means 42.
  • first connection means 41 such as screw-type terminals or spring-type terminals
  • the second connection means 42 are preferably spatially spaced from the first connection means 41 and are designed to be autonomous in their actuation or connection operation in such a way that when the first connection means 41 is wired, on the one hand the second connection means are freely accessible for further wiring and on the other hand for wiring of the second connection means 42, the first connection means 41 are not actuated (released and secured again).
  • a contact element 6 designed as a plug contact serves in particular for contacting the second connection means 42.
  • the corresponding contactor contact can be freely wired in a conventional manner by means of this connection element 6.
  • dimensionally stable combined multiple plug contacts can also be preassembled, so that, for example, two adjacent contactors can be (pre) wired in a simple manner via dimensionally stable plug contact rows via the respective second connection means 42 in the form of a reversing circuit or a star-delta connection.
  • Other applications such as the combination of a motor protection switch with one
  • Contactors for a simple motor starter can be easily implemented with remotely positioned devices to be wired using pre-assembled multiple plug contacts that are connected via flexible free wiring. All of these applications can be wired in a particularly simple manner by the invention, without the standard connection point being "used up" or occupied in this way. In the case of further wiring, an already occupied connection point would not have to be loosened and further cables inserted and the connection point are secured again. This eliminates a common source of errors - connections that are already operational no longer have to be disconnected or additional cables have to be plugged in. In this way it is avoided that wiring that originally worked would become defective at once, perhaps because an already wired line It is also provided that the interface can also be used for a function check.
  • FIG. 2a shows the two alternative embodiments of the contact contacts 4 of the contactor already shown in FIG. 1 with various first connection means 41 (screw-type or spring-type terminals) and a possible embodiment of the second connection means 42 in the form of a hole receptacle.
  • first connection means 41 screw-type or spring-type terminals
  • second connection means 42 in the form of a hole receptacle.
  • other contacting or connection options are also conceivable, such as, for example, one or more groove-like recesses of the connection contact 4 or of the contact carrier (FIG. 2b) that are only on the edge.
  • plug shapes as shown in FIGS. 4 and 5 are particularly suitable.
  • the plug can advantageously be fixed in the hole receptacle via a non-positive or non-positive connection.
  • the plug can have resilient projections projecting laterally from its contact body, which is in particular elongated and cuboid (Fig. 5).
  • the plug contact it is also conceivable to design the plug contact as circular in cross section, so that it can be screwed into a correspondingly designed hole receptacle with its contacting body, which is likewise circular in cross section.
  • the hole holder can be equipped with a finished thread or it can only be cut by screwing in the plug contact.
  • Figure 3 shows the hole recording in an enlarged detail view.
  • the hole receptacle is preferably designed in the form of a punched passage, so that contact tongue sections (8) directed upwards or downwards are formed around the hole receptacle, and this results in an enlargement of the contact area and thus an optimization of the contacting is ensured.
  • FIG. 6 shows one half of a multi-pole circuit breaker.
  • a connection contact 5, which is shown separately in FIG. 7, is mounted in a housing 2 for each switching pole.
  • Each connection contact 5 carries a fixed contact 43 to the interior of the switching device, which interacts with an associated contact bridge, not shown.
  • the connection contact 5 is in with a first connection means 41
  • the first connection means 41 has a clamping screw 412, which is guided in a threaded bore 411 of the connection contact 5, and a clamping disk 413 mounted thereon. At least one first external electrical conductor can be connected via the first connection means 41. Beyond the threaded hole 411, ie closer to the outside of the circuit breaker, the connection contact 5 runs at a right angle to the front bent second connection means 52 in the form of a flat plug contact. A plug socket 7 in the form of a flat plug sleeve can be plugged onto this second connection means 52 in a non-positive and positive manner. The socket 7 is firmly connected to one end of a second external conductor 520.
  • the second connection means 52 is formed in the center of the connection contact, ie it is in alignment with the axis
  • the second connection means 52 is only so wide that first external conductors can be easily inserted into the clamping space of the first connection means 41 on both sides thereof. In this way, fork-like connecting elements can also advantageously be inserted into the terminal compartment, as are used in particular in three-phase busbar blocks.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Breakers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Saccharide Compounds (AREA)
  • Glass Compositions (AREA)
  • Valve Device For Special Equipments (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The switching device has an insulating housing (2), each switch pole having incoming and outgoing contacts (4) provided with respective terminals (41) for connection with an external electrical lead, at least one of the contacts having a second terminal (42) for connection with a second electrical conductor, positioned between its opposite ends, respectively provided with the first external electrical lead terminal and a stationary switch contact (43). Each second terminal can be provided by an opening for reception of an electrical conductor pin contact.

Description

Elektrisches Schaltgerät Electrical switching device
Die Erfindung betrifft ein elektrisches Schaltgerät nach dem Oberbegriff des Anspru- ches 1. Insbesondere betrifft die Erfindung Schaltgeräte, wie Schütze Motorschutzschalter, Leitungsschutzschalter oder Leistungsschalter oder dergleichen. Aber auch programmierbare Schaltgeräte, wie speicherprogrammierbare Steuerungen oder programmierbare Relais sind im Anwendungsbereich der Erfindung angedacht.The invention relates to an electrical switching device according to the preamble of claim 1. In particular, the invention relates to switching devices such as contactors, motor protection switches, circuit breakers or circuit breakers or the like. Programmable switching devices such as programmable logic controllers or programmable relays are also contemplated within the scope of the invention.
Herkömmliche Schaltgeräte wie zum Beispiel Schütze weisen eingangs- und aus- gangsseitig für jeden zu schaltenden Pol einen Anschlusskontakt in Form eines Festkontaktes auf. Zum Zwecke der Verbindung, beziehungsweise Unterbrechung werden die zugehörigen Festkontakte über eine durch einen Magnetantrieb angetriebene Kontaktbrücke verbunden bzw. getrennt. Bei derartigen Geräten sind die von außen zugänglichen Festkontaktanschlüsse in der Regel über seitlich zugängliche Schraubanschlüsse, die von der Geräteoberseite verschraubt bzw. gelöst werden können oder durch seitlich oder von oben zugängliche und auch wieder von der Seite oder von oben lösbare Federklemmanschlüsse, gebildet.Conventional switching devices such as contactors have a connection contact in the form of a fixed contact on the input and output sides for each pole to be switched. For the purpose of connection or interruption, the associated fixed contacts are connected or disconnected via a contact bridge driven by a magnetic drive. In such devices, the externally accessible fixed contact connections are usually formed via laterally accessible screw connections that can be screwed or loosened from the top of the device or by laterally or from above accessible and again detachable from the side or from above.
Aus der Druckschrift DE 201 20 504 U1 ist bereits ein Schaltgerät mit derartigen Anschlussvorrichtungen bekannt. Dieses Schaltgerät ist auf der einen Polseite mit Schraubanschlüssen bestückt und auf der anderen gegenüberliegenden Polseite mit andersartigen Anschlusselementen, wie zum Beispiel mit Federklemmelementen ausgestattet.A switching device with such connection devices is already known from the publication DE 201 20 504 U1. This switchgear is equipped with screw terminals on one pole side and with other types of connection elements, such as spring clamp elements, on the other opposite pole side.
Ferner ist aus der Druckschrift DE 100 23 851 A1 eine Anschlussklemme für Schaltgeräte bekannt, bei der ein basismäßig vorgesehener Schraubanschluss durch ein Modul für einen Federklemmanschluss ausgetauscht werden kann.Furthermore, a connection terminal for switching devices is known from the publication DE 100 23 851 A1, in which a screw connection provided as a basis can be replaced by a module for a spring terminal connection.
Die vorbeschriebenen Ausführungsformen haben sich in der Praxis bereits weitestge- hend bewährt. Aufgabe der Erfindung ist es ein Schaltgerät zu schaffen, welches im Hinblick auf die Anschlusstechnik optimiert ist. Es soll sowohl eine einfache Benutzung durch den Anwender gewährleistet, als auch die Flexibilität im Hinblick auf die Vielfältigkeit der Anschlussmöglichkeiten verbessert werden. Ausgehend von einem zumindest einpolig ausgebildeten Schaltgerät, bei dem jeder Pol zumindest einen ankommenden und einen abgehenden Anschlusskontakt aufweist und jeder der Anschlusskontakte erste Anschlussmittel für den Anschluss eines ersten externen elektrischen Leiters aufweist, wird die Aufgabe dadurch gelöst, dass zumindest einer der Anschlusskontakte zweite Anschlussmittel für den Anschluss eines zweiten elektrischen Leiters aufweist. Das erfindungsgemäße Schaltgerät weist in konstruktiv und technologisch unaufwändiger Weise zur Geräteaußenseite sowohl in herkömmlicher Art und Weise ausgebildete erste Anschlussmittel (wie Schraubklemmanschlüsse oder Federklemmanschlüsse) als auch zweite Anschlussmittel für zusätzliche Anschlussglieder auf.The above-described embodiments have already largely proven themselves in practice. The object of the invention is to provide a switching device which is optimized with regard to the connection technology. It is intended both to ensure simple use by the user and to improve flexibility with regard to the variety of connection options. Starting from an at least single-pole switching device, in which each pole has at least one incoming and one outgoing connection contact and each of the connection contacts has first connection means for connecting a first external electrical conductor, the object is achieved in that at least one of the connection contacts has second connection means for has the connection of a second electrical conductor. The switching device according to the invention has, in a structurally and technologically uncomplicated manner on the outside of the device, both first connection means (such as screw-type terminals or spring-type terminals) designed in a conventional manner and second connection means for additional connecting elements.
Die zweiten Anschlussmittel sind gegenüber den ersten Anschlussmitteln entweder näher zum Inneren oder näher zum Äußeren des Schaltgerätes angeordnet.Compared to the first connection means, the second connection means are arranged either closer to the inside or closer to the outside of the switching device.
Der Anschlusskontakt trägt erfindungsgemäß einen zum Geräteinneren führenden Festkontakt (z.B. bei Schützen) oder eine Verbindungsstelle für den Anschluss an elektrische interne Geräteleiter (z.B. bei programmierbaren Steuergeräten). Die ersten Anschlussmittel sind in Form herkömmlicher Schraubklemmanschlüsse, Federklemmanschlüsse (z.B. Käfig-Zugfederklemmanschlüsse), Schneidklemmanschlüsse oder anderer Anschlussmittel ausgebildet.According to the invention, the connection contact carries a fixed contact leading to the inside of the device (e.g. in the case of contactors) or a connection point for connection to electrical internal device conductors (e.g. in the case of programmable control devices). The first connection means are designed in the form of conventional screw-type terminals, spring-type terminals (e.g. cage-type spring-type terminals), insulation displacement connections or other connection means.
Die zusätzlichen zweiten Anschlussmittel sind als Mittel für die kraft- und/oder formschlüssige Aufnahme eines Anschlussgliedes insbesondere in Form eines Steckanschlusses oder eines Schraubanschlusses ausgebildet.The additional second connection means are designed as means for the non-positive and / or positive connection of a connection element, in particular in the form of a plug connection or a screw connection.
In einer bevorzugten Ausführungsform sind die zweiten Anschlussmittel als zentrale Lochaufnahmen für als Steckkontakte ausgebildete Anschlussglieder ausgeführt. Zur Optimierung der Kontaktierung bei dem zweiten Anschlussmittel ist die lochartige Ausnehmung - sei sie geschlossen (Lochaufnahme) oder randseitig offen (seitliche Ausnehmung) - als gestanzter Durchzug ausgebildet, so dass randseitig um die Ausnehmung herum zumindest bereichsweise zungenartige Erweiterungen nach außen abstehend gebildet sind. Hierdurch wird auf konstruktionsmäßig einfachste Art eine zusätzliche Anschlussmöglichkeit für den von außen zugänglichen Anschlusskontakt realisiert. Andere Ausführungen, wie eine seitliche Ausnehmung des Anschlussglie- des bzw. des Kontaktträgers sind ebenso möglich. In einer anderen bevorzugten Ausführungsform sind die zweiten Anschlussmittel als Steckkontakte ausgebildet. Bei zentraler Ausbildung der Steckkontakte können die ersten externen elektrischen Leiter bequem an den Steckkontakten links oder rechts oder beidseitig vorbei in die ersten Anschlussmittel eingeführt werden.In a preferred embodiment, the second connection means are designed as central hole receptacles for connection members designed as plug contacts. In order to optimize the contacting in the second connection means, the hole-like recess - be it closed (hole holder) or open on the edge (lateral recess) - is designed as a punched passage, so that tongue-like extensions projecting outward at least in regions around the recess are formed on the edge. As a result, an additional connection option for the connection contact, which is accessible from the outside, is realized in the simplest design. Other designs, such as a lateral recess in the connecting member or the contact carrier, are also possible. In another preferred embodiment, the second connection means are designed as plug contacts. With a central design of the plug contacts, the first external electrical conductors can easily be inserted into the first connection means past the plug contacts on the left or right or on both sides.
Für den Zugang zu den zweiten im Geräteinneren angeordneten Anschlussmitteln weist das aus Isolierstoffmaterial bestehende Gehäuse wahlweise in einem Bereich oberhalb der zweiten Anschlussmittel Sollbruchstellen auf, die einen durch Herausbrechen herstellbaren Zugangsbereich definieren. Auch kann der Zugangsbereich ursprünglich frei (unverschlossen) ausgebildet sein.For access to the second connection means arranged in the interior of the device, the housing consisting of insulating material optionally has predetermined breaking points in an area above the second connection means which define an access area that can be produced by breaking out. The access area can also initially be free (unlocked).
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Figuren erläuterten Ausführungsbeispiel. Dabei wird die Erfindung stellvertretend für alle anderen elektrischen Schaltgeräte am Beispiel eines Schützes er- läutert. Es zeigenFurther details and advantages of the invention result from the following exemplary embodiment explained with reference to figures. The invention is illustrated on the basis of the example of a contactor and is representative of all other electrical switching devices. Show it
Figur 1 : ein mehrpoliges Schütz in schematischer Explosionsdarstellung;Figure 1: a multi-pole contactor in a schematic exploded view;
Figur 2a: Anschlusskontakte des Schützes mit verschiedenen ersten Anschlussmitteln (Schraubklemm- bzw. Federklemmanschlüssen) sowie einer möglichen Ausführung der zweiten Anschlussmittel (Lochaufnahme) gemäß Fig. 1 ;2a: Connection contacts of the contactor with various first connection means (screw-type or spring-type terminals) and a possible design of the second connection means (hole receptacle) according to FIG. 1;
Figur 2b: eine alternative Ausführungsform der zweiten Anschlussmittel;Figure 2b: an alternative embodiment of the second connection means;
Figur 3: eine Detaildarstellung der Lochaufnahme gemäß Fig. 2;FIG. 3: a detailed representation of the hole holder according to FIG. 2;
Figur 4, 5:mögliche Ausführungen eines Steckkontaktes für die Lochaufnahme gemäß Fig. 2a; Figur 6: einen mehrpoligen Schutzschalter im Teillängsschnitt mit einer weitere Ausführungsform der zweiten Anschlussmittel;4, 5: possible designs of a plug contact for the hole receptacle according to FIG. 2a; Figure 6: a multi-pole circuit breaker in partial longitudinal section with a further embodiment of the second connection means;
Figur 7: eine perspektivische Einzeldarstellung aus Fig. 6.FIG. 7: an individual perspective view from FIG. 6.
Fig. 1 zeigt in schematischer Explosionsdarstellung den Aufbau eines mehrpoligen Schützes (vorliegend z.B. 3-polig oder 4-polig nebst Versorgungsanschluss für dieFig. 1 shows a schematic exploded view of the structure of a multi-pole contactor (in the present example, 3-pole or 4-pole with supply connection for the
Antriebsspule des Magnetantriebs) mit einem Gehäuse 2 aus Isolierstoff, wobei jeder Pol einen ankommenden und einen abgehenden Anschlusskontakt 4 aufweist.Drive coil of the magnetic drive) with a housing 2 made of insulating material, each pole having an incoming and an outgoing connection contact 4.
Das Gehäuse 2 des Schützes ist vorliegend dreiteilig ausgeführt und besteht aus ei- nem Basisgehäuseteil 2a zur Aufnahme eines Magnetantriebs, einem auf das Basisgehäuseteil 2a aufsetzbaren oberen Gehäuseteil 2b und einem Gehäusedeckel 2c. Ferner sind beidseitig die Anschlusskontakte 4 dargestellt, die für den Anschluss ankommender und abgehender Anschlussleitungen dienen. Das Gehäuse 2 kann je nach Schaltgerätetyp auch zweiteilig oder gar einteilig ausgebildet sein. Eingeklammert sind als Alternativanschlüsse zu den dargestellten Anschlussklemmen 4a mit Federklemmanschluss auch Anschlussklemmen 4b mit Schraubklemmanschluss dargestellt. Für das dargestellte Gehäuse 2 sind vorliegend Anschlussklemmen 4a mit Federklemmanschluss vorgesehen. Für etwaige Anschlussklemmen 4b mit Schraubklemmanschluss müsste das vorhandene Deckelteil 2c ausgetauscht werden, welches dann entsprechende Zugangsöffnungen für die Schraubenköpfe anstatt Öffnunr gen für die Federklemmen aufweist. Das dargestellte Deckelteil 2c ist für die Anschlussklemmen 4a mit Federklemmanschluss vorgesehen und weist eine erste Reihe von Öffnungen 21 für die Verbindung bzw. den Zugang von ersten Anschlussleitungen 410 mit bzw. zu ersten Anschlussmitteln 41 des Anschlusskontaktes 4a, eine zweite Reihe von (Doppel-)Öffnungen 22 für den Eingriff eines Werkzeuges (z.B. Schraubendreher) und eine dritte Reihe von Öffnungen 23 bzw. eine Öffnung in Form eines Öffnungsschlitzes für die Verbindung von zweiten Anschlussleitungen 420 mit zusätzlichen zweiten Anschlussmitteln 42 des Anschlusskontaktes 4 auf. Die gemäß der Erfindung vorgesehene zusätzliche Reihe von Öffnungen 23 (bzw. der Öffnungsschlitz) ist in einer bevorzugten Ausführung der Erfindung im Ausgangszustand über ein Deckelteil verschlossen. Dabei kann die Öffnung durch ein wiederverschließbares Deckelteil über eine Rastverbindung oder ein Filmscharnier verschlossen sein. Vorzugsweise ist die Öffnung 23 jedoch nicht wieder verschließbar durch einen oder mehrere von Sollbruchstellen umrissene(n) heraustrennbare(n) Gehäusebereich(e), der (die) den späteren Zugangsbereich zu den zweiten Anschlussmitteln 42 bildet (bilden) verschlossen. Hierdurch wird eine besonders einfache Konstruktion gewährleistet und zusätzlicher Lager- und Verwaltungsaufwand für separate Deckelteile vermieden.In the present case, the housing 2 of the contactor is made up of three parts and consists of a base housing part 2a for receiving a magnetic drive, an upper housing part 2b which can be placed on the base housing part 2a and a housing cover 2c. Furthermore, the connection contacts 4 are shown on both sides, which serve for the connection of incoming and outgoing connection lines. Depending on the switching device type, the housing 2 can also be formed in two parts or even in one part. Parenthesized as alternative connections to the illustrated connection terminals 4a with spring-loaded connection are also connection terminals 4b with screw-type connection. In the present case, connection terminals 4a with spring-type terminals are provided for the housing 2 shown. For any connecting terminals 4b with screw terminal connection, the existing cover part 2c would have to be replaced, which then has corresponding access openings for the screw heads instead of openings for the spring terminals. The illustrated cover part 2c is provided for the connection terminals 4a with a spring clamp connection and has a first row of openings 21 for the connection or access of first connection lines 410 with or to first connection means 41 of the connection contact 4a, a second row of (double) Openings 22 for the engagement of a tool (eg screwdriver) and a third row of openings 23 or an opening in the form of an opening slot for the connection of second connection lines 420 with additional second connection means 42 of the connection contact 4. The additional row of openings 23 (or the opening slot) provided according to the invention is closed in a preferred embodiment of the invention in the initial state via a cover part. The opening can be closed by a reclosable cover part via a snap connection or a film hinge. Preferably, however, the opening 23 cannot be closed again by one or more separable housing area (s) outlined by predetermined breaking points, which housing area (s) forms the later access area to the second connection means 42. This ensures a particularly simple construction and avoids additional storage and administration costs for separate cover parts.
Als ankommender bzw. abgehender Anschlusskontakt 4 sind zwei verschiedene al- temative Ausführungen dargestellt. In einer ersten Ausführungsform ist der Anschlusskontakt 4a mit ersten Anschlussmitteln 41 in Form von Federklemmanschlüssen gebildet, während in der alternativen Ausführung anstelle der Federklemmanschlüsse Schraubklemmanschlüsse angeordnet sind. Beiden Ausführungen gemein ist die erfindungsgemäße Ausbildung mit zusätzlichen zweiten Anschlussmitteln 42. Bevorzugt ist ein erfindungsgemäßer Anschlusskontakt 4 durch eine zungenartigeTwo different alternative designs are shown as the incoming or outgoing connection contact 4. In a first embodiment, the connection contact 4a is formed with first connection means 41 in the form of spring clamp connections, while in the alternative embodiment screw clamp connections are arranged instead of the spring clamp connections. Both embodiments have in common the design according to the invention with additional second connection means 42. A connection contact 4 according to the invention is preferred by a tongue-like one
Anschlussfahne gebildet, die zum Geräteinneren an elektrische Geräteleiter ange- schlossen ist oder wie im vorliegenden Fall einfach als Kontaktträger einen Festkontakt 43 trägt, die zur Geräteaußenseite hin in herkömmlicher Art und Weise die ersten Anschlussmittel 41 (wie Schraubklemmanschlüsse oder Federklemmanschlüsse) aufweist und die im Bereich zwischen diesen Anschlussstellen die - vorzugsweise als Lochaufnahme ausgebildeten - zweiten Anschlussmittel 42 aufweist. Dabei sind die zweiten Anschlussmittel 42 vorzugsweise von den ersten Anschlussmitteln 41 räumlich beabstandet und in ihrer Betätigung bzw. Anschlussbedienung autark ausgebildet derart, dass bei einer Verdrahtung der ersten Anschlussmittel 41 zum einen die zweiten Anschlussmittel für eine weitere Verdrahtung frei zugänglich sind und andererseits für eine Verdrahtung der zweiten Anschlussmittel 42 die ersten Anschlussmittel 41 nicht betätigt (gelöst und wieder gesichert) werden.Connection flag formed, which is connected to the inside of the device on electrical device conductors is closed or, as in the present case, simply carries a fixed contact 43 as a contact carrier, which has the first connection means 41 (such as screw-type terminals or spring-type terminals) towards the outside of the device in a conventional manner and the second - preferably designed as a hole receptacle - in the area between these connection points Has connection means 42. The second connection means 42 are preferably spatially spaced from the first connection means 41 and are designed to be autonomous in their actuation or connection operation in such a way that when the first connection means 41 is wired, on the one hand the second connection means are freely accessible for further wiring and on the other hand for wiring of the second connection means 42, the first connection means 41 are not actuated (released and secured again).
Zur Kontaktierung der zweiten Anschlussmittel 42 dient insbesondere ein als Steckkontakt ausgebildetes Anschlussglied 6. Mittels dieses Anschlussgliedes 6 ist der ent- sprechende Schützkontakt in herkömmlicher Weise frei zu verdrahten. Insbesondere sind auch formstabile kombinierte Mehrfachsteckkontakte vorkonfektionierbar, so dass beispielsweise zwei benachbarte Schütze über die jeweils zweiten Anschlussmittel 42 in Form einer Wendeschaltung oder einer Stern-Dreieckschaltung auf einfache Weise über formfeste Steckkontaktreihen (vor-)verdrahtet werden können. Auch andere Anwendungen wie die Kombination eines Motorschutzschalters mit einemA contact element 6 designed as a plug contact serves in particular for contacting the second connection means 42. The corresponding contactor contact can be freely wired in a conventional manner by means of this connection element 6. In particular, dimensionally stable combined multiple plug contacts can also be preassembled, so that, for example, two adjacent contactors can be (pre) wired in a simple manner via dimensionally stable plug contact rows via the respective second connection means 42 in the form of a reversing circuit or a star-delta connection. Other applications such as the combination of a motor protection switch with one
Schütz zu einem einfachen Motorstarter können bei entfernt positionierten zu verdrahtenden Geräten auf einfache Weise durch vorkonfektionierte Mehrfachsteckkontakte, die über flexible Freiverdrahtung verbunden sind, realisiert werden. All diese Anwendungen können durch die Erfindung auf besonders einfache Weise verdrahtet wer- den, ohne dass hierdurch etwa bereits die Standard-Anschlussstelle „verbraucht" bzw. belegt wäre. Für den Fall weiterer Verdrahtungen müsste demnach nicht eine bereits belegte Anschlussstelle gelöst, weitere Kabel eingelegt und die Anschlussstelle wieder gesichert werden. Hierdurch wird eine häufige Fehlerquelle ausgeschaltet - bereits funktionsfähige Verbindungen müssen nicht mehr gelöst werden oder zusätzliche Kabel untergeschoben werden. So wird vermieden, dass bei nachträglicher Verdrahtung ursprünglich funktionierende Verdrahtungen auf einmal fehlerhaft werden, weil vielleicht eine bereits verdrahtete Leitung sich gelöst hat. Weiterhin ist vorgesehen, die Schnittstelle auch für eine Funktionskontrolle zu nutzen. Eine Funktionskontrolle ist bei dem erfindungsgemäßen Gegenstand ohne ein Entfernen der Anschlussverdrahtung möglich. Figur 2a zeigt die beiden in Figur 1 bereits dargestellten alternativen Ausführungsform der Anschlusskontakte 4 des Schützes mit verschiedenen ersten Anschlussmitteln 41 (Schraubklemm- bzw. Federklemmanschlüssen) sowie einer möglichen Ausführung der zweiten Anschlussmittel 42 in Form einer Lochaufnahme. Anstelle der Lochauf- nähme sind auch andere Kontaktierungs- bzw. Anschlussmöglichkeiten denkbar, wie z.B. eine oder mehrere lediglich randseitige nutartige Ausnehmungen des Anschlusskontaktes 4 bzw. des Kontaktträgers (Fig. 2b). Für eine Kontaktierung der Lochaufnahme oder der randseitigen Ausnehmung eignen sich insbesondere Steckerformen wie in den Figuren 4 und 5 abgebildet. Dabei ist der Stecker mit Vorteil über eine kraftschlüssige oder kraftformschlüssige Verbindung in der Lochaufnahme fixierbar. Hierfür kann der Stecker von seinem insbesondere länglich und quaderförmig ausgebildeten Kontaktierungskörper seitlich abstehende federnd ausgebildete Fortsätze aufweisen (Fig. 5). Des Weiteren ist auch denkbar, den Steckkontakt im Querschnitt gesehen kreisrund auszubilden, so dass dieser mit seinem ebenfalls im Querschnitt kreisrunden Kontaktierungskörper in eine entsprechend ausgebildete Lochaufnahme einschraubbar ist. Hierfür kann die Lochaufnahme mit einem fertigen Gewinde ausgestattet sein oder aber dieses erst durch Eindrehen des Steckkontaktes eingeschnitten werden.Contactors for a simple motor starter can be easily implemented with remotely positioned devices to be wired using pre-assembled multiple plug contacts that are connected via flexible free wiring. All of these applications can be wired in a particularly simple manner by the invention, without the standard connection point being "used up" or occupied in this way. In the case of further wiring, an already occupied connection point would not have to be loosened and further cables inserted and the connection point are secured again. This eliminates a common source of errors - connections that are already operational no longer have to be disconnected or additional cables have to be plugged in. In this way it is avoided that wiring that originally worked would become defective at once, perhaps because an already wired line It is also provided that the interface can also be used for a function check. A function check is possible in the object according to the invention without removing the connection wiring. FIG. 2a shows the two alternative embodiments of the contact contacts 4 of the contactor already shown in FIG. 1 with various first connection means 41 (screw-type or spring-type terminals) and a possible embodiment of the second connection means 42 in the form of a hole receptacle. Instead of the hole receptacle, other contacting or connection options are also conceivable, such as, for example, one or more groove-like recesses of the connection contact 4 or of the contact carrier (FIG. 2b) that are only on the edge. For contacting the hole receptacle or the edge-side recess, plug shapes as shown in FIGS. 4 and 5 are particularly suitable. The plug can advantageously be fixed in the hole receptacle via a non-positive or non-positive connection. For this purpose, the plug can have resilient projections projecting laterally from its contact body, which is in particular elongated and cuboid (Fig. 5). Furthermore, it is also conceivable to design the plug contact as circular in cross section, so that it can be screwed into a correspondingly designed hole receptacle with its contacting body, which is likewise circular in cross section. For this purpose, the hole holder can be equipped with a finished thread or it can only be cut by screwing in the plug contact.
Figur 3 zeigt die Lochaufnahme in einer vergrößerten Detaildarstellung. Dabei ist die Lochaufnahme vorzugsweise in Form eines gestanzten Durchzugs ausgebildet, so dass um die Lochaufnahme herum nach oben oder nach unten gerichtete Kontaktzungenabschnitte (8) gebildet sind und hierdurch eine Vergrößerung der Kontaktfläche entsteht und somit eine Optimierung der Kontaktierung gewährleistet wird.Figure 3 shows the hole recording in an enlarged detail view. The hole receptacle is preferably designed in the form of a punched passage, so that contact tongue sections (8) directed upwards or downwards are formed around the hole receptacle, and this results in an enlargement of the contact area and thus an optimization of the contacting is ensured.
Figur 6 zeigt eine Hälfte eines mehrpoligen Schutzschalters. In einem Gehäuse 2 ist für jeden Schaltpol ein Anschlusskontakt 5 gelagert, der in Fig. 7 gesondert dargestellt ist. Jeder Anschlusskontakt 5 trägt zum Inneren des Schaltgerätes einen Festkontakt 43, der mit einer zugehörigen, nicht dargestellten Kontaktbrücke zusammenwirkt. Nach außen hin ist der Anschlusskontakt 5 mit einem ersten Anschlussmittel 41 inFigure 6 shows one half of a multi-pole circuit breaker. A connection contact 5, which is shown separately in FIG. 7, is mounted in a housing 2 for each switching pole. Each connection contact 5 carries a fixed contact 43 to the interior of the switching device, which interacts with an associated contact bridge, not shown. On the outside, the connection contact 5 is in with a first connection means 41
Form eines Klemmanschlusses versehen. Das erste Anschlussmittel 41 weist eine in einer Gewindebohrung 411 des Anschlusskontaktes 5 geführten Klemmschraube 412 und eine auf dieser gelagerten Klemmscheibe 413 auf. Über das erste Anschlussmittel 41 kann mindestens ein erster extern elektrischer Leiter angeschlossen werden. Jenseits der Gewindebohrung 411 , d.h. näher zum Äußeren des Schutzschalters gelegen, läuft der Anschlusskontakt 5 in einem im rechten Winkel zur Frontseite abge- bogenen zweiten Anschlussmittel 52 in Form eines flachen Steckkontaktes aus. Auf dieses zweite Anschlussmittel 52 ist eine Steckbuchse 7 in Form einer flachen Steckhülse kraft- und formschlüssig aufsteckbar. Die Steckbuchse 7 ist fest mit einen Ende eines zweiten externen Leiters 520 verbunden. Das zweite Anschlussmittel 52 ist mit- tig zum Anschlusskontakt ausgebildet, d.h., es befindet sich in Flucht zur AchseForm a clamp connection. The first connection means 41 has a clamping screw 412, which is guided in a threaded bore 411 of the connection contact 5, and a clamping disk 413 mounted thereon. At least one first external electrical conductor can be connected via the first connection means 41. Beyond the threaded hole 411, ie closer to the outside of the circuit breaker, the connection contact 5 runs at a right angle to the front bent second connection means 52 in the form of a flat plug contact. A plug socket 7 in the form of a flat plug sleeve can be plugged onto this second connection means 52 in a non-positive and positive manner. The socket 7 is firmly connected to one end of a second external conductor 520. The second connection means 52 is formed in the center of the connection contact, ie it is in alignment with the axis
Längsachse der Klemmschraube 412. Das zweite Anschlussmittel 52 ist dabei nur so breit ausgebildet, dass zu beiden Seiten desselben bequem erste externe Leiter in das Klemmraum des ersten Anschlussmittels 41 eingeführt werden können. Damit lassen sich in den Klemmenraum auch mit Vorteil gabelartig ausgebildete Anschluss- elemente einführen, wie sie insbesondere bei Drehstromschienenblöcken verwendet werden. Longitudinal axis of the clamping screw 412. The second connection means 52 is only so wide that first external conductors can be easily inserted into the clamping space of the first connection means 41 on both sides thereof. In this way, fork-like connecting elements can also advantageously be inserted into the terminal compartment, as are used in particular in three-phase busbar blocks.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Elektrisches mindestens einpolig ausgebildetes Schaltgerät mit einem Gehäuse (2) aus Isolierstoffmaterial, - wobei jeder Pol zumindest einen ankommenden und einen abgehenden Anschlusskontakt (4; 5) aufweist und jeder der Anschlusskontakte (4; 5) erste Anschlussmittel (41;) für den Anschluss mindestens eines ersten externen elektrischen Leiters aufweist, dadurch gekennzeichnet, dass1. Electrical switching device with at least one pole with a housing (2) made of insulating material, - each pole having at least one incoming and one outgoing connection contact (4; 5) and each of the connection contacts (4; 5) has first connection means (41;) for the Has connection of at least a first external electrical conductor, characterized in that
- zumindest einer der Anschlusskontakte (4; 5) zweite Anschlussmittel (42; 52) für den Anschluss eines zweiten elektrischen Leiters aufweist.- At least one of the connection contacts (4; 5) has second connection means (42; 52) for connecting a second electrical conductor.
2. Schaltgerät nach Anspruch 1 , dadurch gekennzeichnet, dass jeder Anschlusskontakt (4) einen Kontaktträger, eine darauf an einem Ende angeordnete Verbindungsstelle zur geräteinternen Kontaktierung, sowie das anderendig angeordnete erste Anschlussmittel (41) und die zwischen Verbindungsstelle und ersten Anschlussmitteln (41) angeordneten zweiten Anschlussmittel (42; 52) aufweist.2. Switching device according to claim 1, characterized in that each connection contact (4) has a contact carrier, a connection point arranged thereon at one end for internal device contacting, as well as the other end connection means (41) and the connection point and first connection means (41) second connection means (42; 52).
3. Schaltgerät nach Anspruch 1 , dadurch gekennzeichnet, dass jeder Anschlusskontakt (5) einen Kontaktträger, eine darauf an einem Ende angeordnete Verbin- dungssteile zur geräteinternen Kontaktierung, sowie das anderendig angeordnete zweite Anschlussmittel (42; 52) und die zwischen Verbindungsstelle und zweitem Anschlussmitteln (42; 52) angeordneten ersten Anschlussmittel (41 ) aufweist.3. Switching device according to claim 1, characterized in that each connection contact (5) has a contact carrier, a connection part arranged thereon at one end for internal contacting with the device, and the other connection arrangement (42; 52) arranged at the other end and that between the connection point and the second connection arrangement (42; 52) arranged first connection means (41).
4. Schaltgerät nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Verbin- dungssteile als Festkontakt (43) eines Schaltkontaktes oder in Form einer Verbindungsstelle zur Verdrahtung ausgebildet ist.4. Switching device according to claim 2 or 3, characterized in that the connecting parts are designed as fixed contacts (43) of a switching contact or in the form of a connection point for wiring.
5. Schaltgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die ersten Anschlussmittel (41 ) als Schraubklemmanschluss oder als Federklemman- schluss oder in Schneidklemmtechnik ausgebildet sind.5. Switching device according to one of claims 1 to 3, characterized in that the first connection means (41) are designed as a screw terminal connection or as a spring terminal connection or in insulation displacement technology.
6. Schaltgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zweiten Anschlussmittel (42; 52) für die kraft- und/oder formschlüssige Aufnahme eines Anschlussgliedes ausgebildet sind 6. Switching device according to one of claims 1 to 3, characterized in that the second connection means (42; 52) are designed for the non-positive and / or positive reception of a connection element
7. Schaltgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zweiten Anschlussmittel (42) als Lochaufnahmen oder seitliche Ausnehmungen der Anschlusskontaktes (4) für die Aufnahme von mit den zweiten elektrischen Leitern verbundenen Steckkontakten (6) ausgebildet sind.7. Switching device according to one of claims 1 to 3, characterized in that the second connection means (42) are designed as hole receptacles or lateral recesses of the connection contact (4) for receiving plug contacts (6) connected to the second electrical conductors.
8. Schaltgerät nach vorstehendem Anspruch, dadurch gekennzeichnet, dass die/jede Lochaufnahme einen zumindest bereichsweise randseitig nach oben und/oder unten gerichteten Kontaktzungenabschnitt (8) aufweist.8. Switching device according to the preceding claim, characterized in that the / each hole receptacle has an at least partially edge-side upward and / or downward contact tongue section (8).
9. Schaltgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die zweiten Anschlussmittel (52) als zur Frontseite gerichtete Steckkontakte für die Aufnahme in mit den zweiten elektrischen Leitern verbundenen Kontaktbuchsen (7) ausgebildet sind.9. Switching device according to one of claims 1 to 3, characterized in that the second connection means (52) are designed as plug contacts directed towards the front for the reception in contact sockets (7) connected to the second electrical conductors.
10. Schaltgerät nach vorstehendem Anspruch, dadurch gekennzeichnet, dass die zweiten Anschlussmittel (52) mittig zu den ersten Anschlussmitteln (41) angeordnet sind, wobei die ersten elektrischen Leiter beidseitig der Steckkontakte in die ersten Anschlussmittel (41) einführbar sind.10. Switching device according to the preceding claim, characterized in that the second connection means (52) are arranged centrally to the first connection means (41), the first electrical conductors being insertable into the first connection means (41) on both sides of the plug contacts.
11. Schaltgerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (2) für den Zugang zu den zweiten Anschlussmitteln (42; 52) einen von Sollbruchstellen umrissenen Zugangsbereich aufweist. 11. Switching device according to one of the preceding claims, characterized in that the housing (2) for access to the second connection means (42; 52) has an access area outlined by predetermined breaking points.
EP03793698.6A 2002-08-10 2003-08-07 Electrical switchgear Expired - Lifetime EP1529302B2 (en)

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DE10236790 2002-08-10
DE10236790A DE10236790C1 (en) 2002-08-10 2002-08-10 Electrical switching device has incoming and/or outgoing contacts provided with external electrical lead terminals and second terminals for second electrical conductor
PCT/EP2003/008757 WO2004023506A1 (en) 2002-08-10 2003-08-07 Electrical switchgear

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Also Published As

Publication number Publication date
EP1529302B2 (en) 2017-05-24
EP1529302B1 (en) 2006-04-12
DE10236790C1 (en) 2003-10-16
ES2262011T3 (en) 2006-11-16
HK1083039A1 (en) 2006-06-23
CN100359620C (en) 2008-01-02
CN1689128A (en) 2005-10-26
ATE323323T1 (en) 2006-04-15
US20050270130A1 (en) 2005-12-08
WO2004023506A1 (en) 2004-03-18
DE50302965D1 (en) 2006-05-24
US7609137B2 (en) 2009-10-27

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