WO2004070756A1 - Terminal clamping device for connecting an annular cable lug and corresponding electrical appliance - Google Patents

Terminal clamping device for connecting an annular cable lug and corresponding electrical appliance Download PDF

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Publication number
WO2004070756A1
WO2004070756A1 PCT/EP2004/000630 EP2004000630W WO2004070756A1 WO 2004070756 A1 WO2004070756 A1 WO 2004070756A1 EP 2004000630 W EP2004000630 W EP 2004000630W WO 2004070756 A1 WO2004070756 A1 WO 2004070756A1
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WO
WIPO (PCT)
Prior art keywords
clamping
screw
terminal device
connecting piece
clamping screw
Prior art date
Application number
PCT/EP2004/000630
Other languages
German (de)
French (fr)
Inventor
Hartmut Peters
Willy Sabisch
Original Assignee
Siemens Aktiegesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiegesellschaft filed Critical Siemens Aktiegesellschaft
Priority to DE502004003275T priority Critical patent/DE502004003275D1/en
Priority to JP2006501604A priority patent/JP2006518086A/en
Priority to EP04705093A priority patent/EP1590818B1/en
Publication of WO2004070756A1 publication Critical patent/WO2004070756A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H01H2001/5861—Box connector with a collar or lug for clamping internal rail and external conductor together by a tightening screw

Definitions

  • Terminal device for connecting a ring cable lug and associated electrical device
  • the invention relates to a connection terminal device for an electrical device, in particular for connecting an electrical conductor terminated with a ring cable lug, with a connecting piece, a clamping frame surrounding the connecting piece and a clamping screw, the clamping frame being provided with a threaded hole which is connected to the clamping screw in this way interacts that by rotating the clamping screw the clamping frame can be displaced against the connection piece in order to produce a adhesive contact of the electrical conductor.
  • the invention further relates to an electrical device equipped with such a terminal device.
  • Screw terminals are widely used as a connection terminal device in electrical connection technology for contacting electrical conductors on electrical devices.
  • a screw terminal comprises a clamping screw which can be screwed into the threaded opening of a connection piece. An electrical conductor to be connected is clamped between the screw head of the clamping screw and the connector.
  • a special form of screw clamp is referred to as a frame clamp, in which a mostly approximately square, closed clamping frame is provided, in the circumference of which a threaded bore corresponding to the clamping screw is made.
  • a frame clamp known from DE 295 08 609 Ul
  • the clamping frame fixed to the housing the clamping screw being axially movable relative to the housing and can be screwed into the clamping frame to produce the clamping contact.
  • the clamping screw fixed to the housing in the axial direction, and the adhesive frame is advanced when the clamping screw rotates against a projecting connection piece protruding into the clamping frame.
  • a common form of a cable lug is a so-called ring cable lug. This carries at its free end a ring-shaped end piece with a screw opening. This end piece is fixed in a conventional screw terminal by placing it under the clamping screw in the manner of a washer.
  • the use of a ring cable lug is advantageous insofar as, due to the end piece surrounding the clamping screw in a ring-like manner, the conductor is held captive even when the clamping screw is loosely seated on the connecting terminal device.
  • the clamping screw In order to be able to connect a ring cable lug to a conventional screw terminal, the clamping screw must necessarily be completely unscrewed from the corresponding threaded hole in the connector. With a conventional screw clamp, however, the clamping screw is only held on the threaded bore. After unscrewing the clamping screw, it is loose. Clamping the ring cable lug is therefore comparatively complex
  • connection terminal device Handling connected.
  • simple handling of the connection terminal device is particularly desirable when the connection terminal device is difficult to access due to the limited space available in a device.
  • a conventional box clamp it would be possible to clamp the ring cable lug without having to completely unscrew the clamping screw from the threaded hole in the clamping frame.
  • the ring cable lug would no longer be held in the box clamp as soon as the clamping screw is loosened.
  • the particularly secure fit of the conductor mediated by the ring cable lug therefore does not come into effect in the case of terminal contacting in a conventional box terminal.
  • the invention is based on the object of specifying a connecting terminal device which is particularly suitable for connecting an electrical conductor which is in particular terminated with a ring cable lug and which has a particularly simple construction and enables simple handling with regard to connecting and disconnecting the electrical conductor.
  • the invention is also based on the object of designing an electrical device in a structurally simple manner in such a way that a simple connection of a conductor, in particular with a ring cable lug, is possible.
  • connection terminal device comprises, in the manner of a conventional frame clamp, a connecting piece, a clamping frame surrounding the latter and a clamping screw which can be screwed into a threaded hole provided on the circumference of the clamping frame.
  • a holding projection protruding from the connecting piece in the direction of a clamping surface of the clamping frame is also provided, which protrudes into a corresponding opening of the clamping frame in the manner of a bolt in a closed position of the clamping frame, and which protrudes from the clamping block in an open position of the connecting clamp. area is spaced.
  • connection terminal device is achieved according to the invention by the features of claim 4.
  • This alternative solution is constructed structurally inversely to the first-mentioned solution, insofar as the retaining projection is attached to the clamping surface of the clamping frame and aligned in the direction of the connecting piece, and the corresponding opening is made in the connecting piece.
  • connection terminal device combines the advantages of a conventional screw terminal with regard to the secure mounting of a ring cable lug with the simple handling of a conventional box terminal.
  • the holding projection penetrates the screw opening of the ring cable lug inserted in the connecting clamp device and thereby holds it captively on the connecting clamp device.
  • This holder is stabilized in particular by the fact that the holding projection engages in the opposite corresponding opening and thus virtually locks the ring cable lug on the connection terminal device.
  • the connection terminal device is of simple construction and allows simple, in particular automatable, assembly.
  • the holding projection is either fixed in place with the connecting piece, in particular soldered or pressed.
  • the holding projection is designed as part of the clamping screw.
  • a bore is made in the connecting piece, through which the retaining projection protrudes.
  • a stable and structurally simple mounting of the connection terminal device is achieved in that the connection piece is fixed in place on a housing.
  • the clamping screw is advantageously held rotatably and captively in the housing.
  • the captive mounting of the clamping screw can be done in different ways. For example, it is possible to on the clamping screw Rivet connector.
  • the clamping screw is held captively in the housing by a housing projection that engages behind the screw head.
  • the housing expediently has a positioning contour for a ring cable lug.
  • This positioning contour comprises at least one rear wall, on which the ring cable lug strikes when it is pushed into the connection terminal device in such a way that its screw opening is axially overlapping with the opening in the clamping surface and the holding projection.
  • the positioning contour also has side walls which cause the screw opening of the ring cable lug to be laterally centered with respect to the opening and the holding projection.
  • connection terminal device is then integrated in the device.
  • the housing of the connection terminal device is in this case, in particular, integral with the housing of the device.
  • connection terminal device allows the device to be easily contacted with electrical leads, even in tight spaces.
  • the integration of the connection terminal device according to the invention in the device makes it possible to manufacture the device particularly inexpensively.
  • FIG. 1 shows a schematic section of an electrical device with a connecting terminal device for an electrical conductor in the open position
  • 2 shows the terminal device according to FIG. 1 in
  • connection terminal device in the open position
  • FIG. 4 shows the terminal device according to FIG. 3 in
  • FIG. 6 shows the terminal device according to FIG. 5 in
  • the 1 shows a terminal device 1, which is integrated in the housing 2 of an electrical device 3, which is only indicated.
  • the device 3 is, for example, an electrical circuit breaker.
  • the connecting terminal device 1 comprises a plate-shaped or rod-shaped connecting piece 4 made of electrically conductive material, which is fixed in place on the housing 2 and projects with its free end 5 into an insertion slot 6 of the housing 2 that is accessible from the outside.
  • the connection clamping device 1 further comprises a clamping frame 7, which has the shape of a sleeve with an essentially square cross section, and which is slipped onto the free end 5 of the connecting piece 4, so that the connecting piece 4 passes through the clamping frame 7.
  • the clamping frame 7 is in this case provided with a circumferentially introduced threaded bore 8.
  • the threaded bore 8 is in engagement with a clamping screw 9 which is rotatably guided in a housing bore 10 and whose screw base 11 rests on the connection piece 4.
  • a housing projection 12 is further provided, which projects into the housing bore 10 on the head side of the clamping screw 9. The clamping screw 9 is thus held approximately stationary in the axial direction between the connecting piece 4 and the housing projection 12 and is thus secured captively on the housing 2.
  • connection terminal device 1 is in particular provided for captively securing an electrical conductor 14 terminated at the end with a ring cable lug 13.
  • connection piece 4 is provided with an approximately cylindrical retaining projection 15.
  • the holding projection 15 is fixed in place on the connector 4, preferably by means of a soldered or press connection, and projects approximately parallel to the surface of the connector 4 facing away from the clamping screw 9
  • clamping surface 17 is provided with an opening 18 which is in the axial direction with respect to the screw axis
  • the opening 18 is dimensioned large enough to be able to accommodate the retaining projection 15 with little play.
  • the electrical conductor 14 comprises a preferably flexible power cable 19 consisting of several individual strands, which is connected at the end to the ring cable lug 13.
  • the ring cable shoe 13 is crimped to the power cable 19 with a crimping area 20 facing the power cable 19.
  • the ring cable lug 13 On the free end, the ring cable lug 13 carries a flat clamping web 21, into which a screw opening 22 is made.
  • the ring cable shoe 13 is given its name in connection technology because the screw opening 22 has an annularly closed edge. 1 shows the terminal device 1 in its open position, ie before the conductor 14 is connected.
  • the clamping screw 9 is largely, but not completely, unscrewed from the threaded bore 8 of the frame 7.
  • an axial distance is formed between the unit formed from the connecting piece 4 and the holding projection 15 on the one hand and the clamping surface 17 of the clamping frame 7 on the other hand, which corresponds to at least the simple, but preferably at least twice the material thickness of the clamping web 21.
  • the clamping web 21 of the ring cable lug 13 is first inserted into the insertion slot 23 between the retaining projection 15 and the clamping surface 17 into the insertion slot 6, as shown in FIG.
  • the insertion of the ring cable lug 13 is facilitated by a positioning contour of the housing 2 in the region of the insertion slot 6, which includes at least one rear wall 24 of the insertion slot 6.
  • the rear wall 24 is arranged in such a way that when the clamping web 21 inserted in the insertion direction 23 abuts against the rear wall 24, the screw opening 22 is approximately centered, but at least lies in register with the opening 18.
  • the insertion slot 6 also has two side walls 25, which are preferably designed as part of the positioning contour in such a way that the screw opening 22 is automatically centered laterally with respect to the opening 18 when the clamping web 21 is inserted into the insertion slot 6.
  • the clamping screw 9 is now screwed into the clamping frame 7 by means of an actuating tool, not shown, in particular a screwdriver.
  • an actuating tool not shown, in particular a screwdriver.
  • the clamping screw 9 is held axially fixed with respect to the housing 2 between the connector 4 and the housing projection 12, when the clamping screw 9 is screwed in, the Clamping frame 7 successively moved in the axial direction of the clamping screw 9 with respect to the connector 4.
  • the retaining projection 15 passes through the screw opening 22 of the ring cable lug 13 and penetrates into the opening 18 in the manner of a bolt.
  • the ring cable lug 13 is thus held captively on the connection terminal device 1.
  • the screwing in of the clamping screw 9 is continued until, according to FIG. 2, the clamping web 21 of the ring cable lug 13 is clamped between the connecting piece 4 and the clamping surface 17 and is thus in contact with the clamp.
  • This position of the terminal device 1 is referred to as the closed position.
  • the conductor 14 and the device 3 are thus connected to one another in an electrically conductive manner via the ring cable lug 13 and the connecting piece 4.
  • the holding projection 15 is integrally formed on the clamping screw 9.
  • the holding projection 15 is designed as an extension tapered with respect to the body 26 of the clamping screw 9, which is formed concentrically with the body 26 with respect to the screw axis 16 and projects beyond the screw base 11.
  • Corresponding to the holding projection 15 is a bore 27 made in the connecting piece 4, the diameter of which corresponds at least to the diameter of the holding projection 15, which is, however, small compared to the diameter of the body 26.
  • the holding projection 15 passes through the bore 27 and projects in the manner described above beyond the surface of the connecting piece 4 facing away from the clamping screw 9.
  • connection terminal device 1 A further embodiment of the connection terminal device 1 is shown in FIGS. 5 and 6 in the open position or closed position.
  • the holding projection 15 is fastened to the clamping surface 17 and projects from there approximately coaxially with the screw axis 16 in the direction of the connector 4.
  • this holding projection 15 engages in a corresponding opening 28 in the connecting piece 4, which is introduced approximately centrally to the screw axis 16 in the connecting piece 4.
  • a recess 29 is also provided, which is made concentrically with the screw axis 16 in the screw base 11 and extends the opening 28 into the clamping screw 9.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

Disclosed is a terminal clamping device (1) for an electrical appliance (3), which has a particularly simple structure and by means of which it is easy to connect an electrical conductor (14) especially terminating in an annular cable lug. The inventive terminal clamping device (1) comprises a connection piece (4), a clamping frame (7) that surrounds said connection piece (4), and a clamping screw (9). The clamping frame (7) is provided with a threaded bore (8) which cooperates with the clamping screw (9) in such a way that the clamping frame (7) is movable towards the connection piece (4) by turning the clamping screw (9) in order to create a clamping contact for an electrical conductor (14). A retaining projection (15) extending in the direction of a clamping area (17) of the clamping frame (7), which is located across from the threaded bore (8), is mounted on the connection piece (4) such that said retaining projection extends in a bolt-type manner into a corresponding opening (18) of the clamping area (17) in a closed position of the terminal clamping device (1) while being located at a distance from the clamping area (17) in an open position of the terminal clamping device (1).

Description

Beschreibungdescription
Anschlussklemmvorichtung zum Anschluss eines Ringkabelschuhs und zugehöriges elektrisches GerätTerminal device for connecting a ring cable lug and associated electrical device
Die Erfindung bezieht sich auf eine Anschlussklemmvorrichtung für ein elektrisches Gerät, insbesondere zum Anschluss eines mit einem Ringkabelschuh abgeschlossenen elektrischen Leiters, mit einem Anschlussstück, einem das Anschlussstück umgebenden Klemmrahmen und einer Klemmschraube, wobei der Klemmrahmen mit einer Gewindebohrung versehen ist, die mit der Klemmschraube derart zusammenwirkt, dass durch Drehung der Klemmschraube der Klemmrahmen zur Herstellung einer Kle mkontaktierung des elektrischen Leiters gegen das An- schlussstück verschiebbar ist. Die Erfindung bezieht sich weiterhin auf ein mit einer derartigen Anschlussklemmvorrichtung ausgestattetes elektrisches Gerät.The invention relates to a connection terminal device for an electrical device, in particular for connecting an electrical conductor terminated with a ring cable lug, with a connecting piece, a clamping frame surrounding the connecting piece and a clamping screw, the clamping frame being provided with a threaded hole which is connected to the clamping screw in this way interacts that by rotating the clamping screw the clamping frame can be displaced against the connection piece in order to produce a adhesive contact of the electrical conductor. The invention further relates to an electrical device equipped with such a terminal device.
Schraubklemmen sind als Anschlussklemmvorrichtung in der elektrischen Anschlusstechnik zur Kontaktierung von elektrischen Leitern an elektrischen Geräten weit verbreitet. In ihrer herkömmlichen Grundform umfasst eine Schraubklemme eine Klemmschraube, die in die Gewindeöffnung eines Anschlussstückes einschraubbar ist. Ein anzuschließender elektrischer Lei- ter wird hierbei zwischen dem Schraubenkopf der Klemmschraube und dem Anschlussstück klemmkontaktiert.Screw terminals are widely used as a connection terminal device in electrical connection technology for contacting electrical conductors on electrical devices. In its conventional basic form, a screw terminal comprises a clamping screw which can be screwed into the threaded opening of a connection piece. An electrical conductor to be connected is clamped between the screw head of the clamping screw and the connector.
Als Rahmenklemme wird eine Sonderform einer Schraubklemme bezeichnet, bei der ein zumeist etwa viereckiger, geschlossener Klemmrahmen vorgesehen ist, in dessen Umfang eine mit der Klemmschraube korrespondierende Gewindebohrung eingebracht ist. Hierbei ist entweder, wie z. B. bei einer aus der DE 295 08 609 Ul bekannten Rahmenklemme, der Klemmrahmen gehäusefest, wobei die Klemmschraube axialbeweglich gegenüber dem Gehäuse ist und zur Herstellung der Klemmkontaktierung in den Klemmrahmen eingeschraubt werden kann. Oder es ist, wie beispielsweise in der DE 32 30 408 AI offenbart, die Klemm- schraube am Gehäuse in axialer Richtung fixiert, und der Kle mrahmen wird bei Drehung der Klemmschraube gegen ein in den Klemmrahmen hineinragendes, gehäusefestes Anschlussstück vorgeschoben.A special form of screw clamp is referred to as a frame clamp, in which a mostly approximately square, closed clamping frame is provided, in the circumference of which a threaded bore corresponding to the clamping screw is made. Here, either, such as. B. in a frame clamp known from DE 295 08 609 Ul, the clamping frame fixed to the housing, the clamping screw being axially movable relative to the housing and can be screwed into the clamping frame to produce the clamping contact. Or it is, as disclosed for example in DE 32 30 408 AI, the clamping screw fixed to the housing in the axial direction, and the adhesive frame is advanced when the clamping screw rotates against a projecting connection piece protruding into the clamping frame.
Um bei Kontaktierung eines flexiblen elektrischen Leiters, insbesondere eines Litzendrahtes, ein Ausfasern des Leiterendes zu vermeiden, und somit einen guten und fehlersicheren Kontakt zwischen dem Leiter und dem Gerät sicherzustellen, ist es üblich, das Leiterende zunächst mit einem so genannten Kabelschuh abzuschließen. Der Kabelschuh wird dann wiederum mit dem Gerät klemmkontaktiert . Eine gebräuchliche Form eines Kabelschuhs ist ein so genannter Ringkabelschuh. Dieser trägt an seinem Freiende ein ringartig ausgebildetes und mit einer Schrauböffnung versehenes Endstück. Dieses Endstück wird bei einer herkömmlichen Schraubklemme fixiert, indem es nach Art einer Beilagscheibe der Klemmschraube unterlegt wird. Die Verwendung eines Ringkabelschuhs ist insofern vorteilhaft, als infolge des ringartig die Klemmschraube umgebenden End- stücks der Leiter auch bei locker sitzender Klemmschraube an der Anschlussklemmvorrichtung verliersicher gehalten ist.In order to avoid unraveling of the conductor end when contacting a flexible electrical conductor, in particular a stranded wire, and thus to ensure a good and fail-safe contact between the conductor and the device, it is common to first terminate the conductor end with a so-called cable lug. The cable lug is then in turn clamped to the device. A common form of a cable lug is a so-called ring cable lug. This carries at its free end a ring-shaped end piece with a screw opening. This end piece is fixed in a conventional screw terminal by placing it under the clamping screw in the manner of a washer. The use of a ring cable lug is advantageous insofar as, due to the end piece surrounding the clamping screw in a ring-like manner, the conductor is held captive even when the clamping screw is loosely seated on the connecting terminal device.
Um einen Ringkabelschuh an einer herkömmlichen Schraubklemme anklemmen zu können, muss notwendigerweise die Klemmschraube vollständig aus der korrespondierenden Gewindebohrung des Anschlussstücks herausgedreht werden. Bei einer herkömmlichen Schraubklemme ist die Klemmschraube jedoch lediglich an der Gewindebohrung gehalten. Nach dem Herausdrehen der Klemmschraube ist diese somit lose. Das Anklemmen des Ringkabel- schuhs ist dadurch mit einer vergleichsweise aufwändigenIn order to be able to connect a ring cable lug to a conventional screw terminal, the clamping screw must necessarily be completely unscrewed from the corresponding threaded hole in the connector. With a conventional screw clamp, however, the clamping screw is only held on the threaded bore. After unscrewing the clamping screw, it is loose. Clamping the ring cable lug is therefore comparatively complex
Handhabung verbunden. Eine einfache Handhabung der Anschlussklemmvorrichtung ist jedoch vor allem dann wünschenswert, wenn aufgrund beengter Platzverhältnisse in einem Gerät die Anschlussklemmvorrichtung nur schlecht zugänglich ist. Unter diesen Umständen besteht zumeist auch eine erhöhte Gefahr, dass die Klemmschraube beim Herausdrehen herabfällt und mitunter nicht wiederauffindbar oder unerreichbar bleibt. Unter Verwendung einer üblichen Rahmenklemme wäre zwar eine Anklemmung des Ringkabelschuhs möglich, ohne dass die Klemmschraube vollständig aus der Gewindebohrung des Klemmrahmens herausgedreht werden müsste. Jedoch wäre der Ringkabelschuh, wie jeder gewöhnliche Leiter, nicht mehr in der Rahmenklemme gehalten, sobald die Klemmschraube gelockert wird. Der durch den Ringkabelschuh vermittelte besonders sichere Sitz des Leiters kommt also bei Klemmkontaktierung in einer gewöhnlichen Rahmenklemme nicht zur Wirkung.Handling connected. However, simple handling of the connection terminal device is particularly desirable when the connection terminal device is difficult to access due to the limited space available in a device. Under these circumstances, there is usually also an increased risk that the clamping screw will fall when unscrewed and sometimes cannot be found or cannot be reached. Using a conventional box clamp, it would be possible to clamp the ring cable lug without having to completely unscrew the clamping screw from the threaded hole in the clamping frame. However, like any normal conductor, the ring cable lug would no longer be held in the box clamp as soon as the clamping screw is loosened. The particularly secure fit of the conductor mediated by the ring cable lug therefore does not come into effect in the case of terminal contacting in a conventional box terminal.
Der Erfindung liegt die Aufgabe zugrunde, eine zum Anschluss eines insbesondere mit einem Ringkabelschuh abgeschlossenen elektrischen Leiters besonders geeignete Anschlussklemmvor- richtung anzugeben, die konstruktiv besonders einfach aufge- baut ist und eine einfache Handhabung bezüglich An- und Abklemmung des elektrischen Leiters ermöglicht. Der Erfindung liegt weiterhin die Aufgabe zugrunde, ein elektrisches Gerät auf konstruktiv einfache Weise dahingehend auszugestalten, dass ein einfacher Anschluss eines insbesondere mit einem Ringkabelschuh abgeschlossenen Leiters möglich ist.The invention is based on the object of specifying a connecting terminal device which is particularly suitable for connecting an electrical conductor which is in particular terminated with a ring cable lug and which has a particularly simple construction and enables simple handling with regard to connecting and disconnecting the electrical conductor. The invention is also based on the object of designing an electrical device in a structurally simple manner in such a way that a simple connection of a conductor, in particular with a ring cable lug, is possible.
Bezüglich der Anschlussklemmvorrichtung wird diese Aufgabe erfindungsgemäß gelöst durch die Merkmale des Anspruchs 1. Danach umfasst die Anschlussklemmvorrichtung nach Art einer gewöhnlichen Rahmenklemme ein Anschlussstück, einen dieses umgebenden Klemmrahmen und eine Klemmschraube, die in eine am Umfang des Klemmrahmens angebrachte Gewindebohrung einschraubbar ist. Für eine sichere Halterung eines Ringkabelschuhs ist weiterhin ein vom Anschlussstück in Richtung einer Klemmfläche des Klemmrahmens abragender Haltevorsprung vorgesehen, der in einer Schließstellung der Anschlussklemmvorrichtung in eine korrespondierende Öffnung des Klemmrahmens nach Art eines Riegels hineinsteht, und der in einer Öffnungsstellung der Anschlussklemmvorrichtung von der Klemm- fläche beabstandet ist. Alternativ wird die Aufgabe bezüglich der Anschlussklemmvorrichtung erfindungsgemäß gelöst durch die Merkmale des Anspruchs 4. Diese alternative Lösung ist konstruktiv invers zur erstgenannten Lösung aufgebaut, insofern als der Haltevorsprung hierbei an der Klemmfläche des Klemmrahmens befestigt und in Richtung des Anschlussstückes ausgerichtet ist, und die korrespondierende Öffnung in das Anschlussstück eingebracht ist.With regard to the connection terminal device, this object is achieved according to the invention by the features of claim 1. According to this, the connection terminal device comprises, in the manner of a conventional frame clamp, a connecting piece, a clamping frame surrounding the latter and a clamping screw which can be screwed into a threaded hole provided on the circumference of the clamping frame. For a secure mounting of a ring cable lug, a holding projection protruding from the connecting piece in the direction of a clamping surface of the clamping frame is also provided, which protrudes into a corresponding opening of the clamping frame in the manner of a bolt in a closed position of the clamping frame, and which protrudes from the clamping block in an open position of the connecting clamp. area is spaced. Alternatively, the object relating to the connection terminal device is achieved according to the invention by the features of claim 4. This alternative solution is constructed structurally inversely to the first-mentioned solution, insofar as the retaining projection is attached to the clamping surface of the clamping frame and aligned in the direction of the connecting piece, and the corresponding opening is made in the connecting piece.
Die erfindungsgemäße Anschlussklemmvorrichtung kombiniert die Vorteile einer herkömmlichen Schraubklemme im Hinblick auf die sichere Halterung eines Ringkabelschuhs mit der einfachen Handhabung einer herkömmlichen Rahmenklemme. Beim Anklemmvorgang durchsetzt der Haltevorsprung die Schrauböffnung des in die Anschlussklemmvorrichtung eingelegten Ringkabelschuhs und hält diesen dadurch unverlierbar an der Anschlussklemmvor- richtung. Diese Halterung wird insbesondere dadurch stabili- siert, dass der Haltevorsprung dabei in die gegenüberliegende korrespondierende Öffnung eingreift und den Ringkabelschuh damit an der Anschlussklemmvorrichtung quasi verriegelt. In beiden alternativen Lösungen ist die Anschlussklemmvorrichtung konstruktiv einfach aufgebaut und erlaubt eine einfache, insbesondere automatisierbare Montage.The connection terminal device according to the invention combines the advantages of a conventional screw terminal with regard to the secure mounting of a ring cable lug with the simple handling of a conventional box terminal. During the clamping process, the holding projection penetrates the screw opening of the ring cable lug inserted in the connecting clamp device and thereby holds it captively on the connecting clamp device. This holder is stabilized in particular by the fact that the holding projection engages in the opposite corresponding opening and thus virtually locks the ring cable lug on the connection terminal device. In both alternative solutions, the connection terminal device is of simple construction and allows simple, in particular automatable, assembly.
Bezüglich der erstgenannten Lösung sind wiederum zwei alternative Ausführungsformen bevorzugt. Hierbei ist der Haltevorsprung entweder mit dem Anschlussstück ortsfest fixiert, insbesondere verlötet oder verpresst. In der alternativen Ausführungsform ist der Haltevorsprung als Teil der Klemmschraube ausgebildet. In dieser konstruktiv besonders einfachen Ausführungsform ist in das Anschlussstück eine Bohrung eingebracht, durch welche der Haltevorsprung hindurchsteht. Eine stabile und konstruktiv einfache Halterung der Anschlussklemmvorrichtung wird dadurch erreicht, dass das Anschlussstück ortsfest an einem Gehäuse fixiert ist. Um einen eventuellen Verlust der Klemmschraube vorzubeugen, ist weiterhin vorteilhafterweise die Klemmschraube drehbar und un- verlierbar im Gehäuse gehalten. Die unverlierbare Halterung der Klemmschraube kann auf verschiedene Weise vorgenommen werden. Beispielsweise ist es möglich, die Klemmschraube am Anschlussstück zu vernieten. In einer vorteilhaften Variante wird die Klemmschraube durch einen, den Schraubenkopf hintergreifenden Gehäusevorsprung im Gehäuse verliersicher gehalten.With regard to the first-mentioned solution, two alternative embodiments are preferred. Here, the holding projection is either fixed in place with the connecting piece, in particular soldered or pressed. In the alternative embodiment, the holding projection is designed as part of the clamping screw. In this structurally particularly simple embodiment, a bore is made in the connecting piece, through which the retaining projection protrudes. A stable and structurally simple mounting of the connection terminal device is achieved in that the connection piece is fixed in place on a housing. In order to prevent a possible loss of the clamping screw, the clamping screw is advantageously held rotatably and captively in the housing. The captive mounting of the clamping screw can be done in different ways. For example, it is possible to on the clamping screw Rivet connector. In an advantageous variant, the clamping screw is held captively in the housing by a housing projection that engages behind the screw head.
Zur weiteren Vereinfachung des Anklemmvorganges weist das Gehäuse zweckmäßigerweise eine Positionierkontur für einen Ringkabelschuh auf. Diese Positionierkontur umfasst zumindest eine Rückwand, an welcher der Ringkabelschuh beim Einschieben in die Anschlussklemmvorrichtung derart anschlägt, dass seine Schrauböffnung mit der Öffnung in der Klemmfläche und dem Haltevorsprung in axialer Überdeckung steht. Optional weist die Positionierkontur weiterhin Seitenwände auf, welche eine seitliche Zentrierung der Schrauböffnung des Ringkabelschuhs bezüglich der Öffnung und des Haltevorsprungs bewirken.To further simplify the clamping process, the housing expediently has a positioning contour for a ring cable lug. This positioning contour comprises at least one rear wall, on which the ring cable lug strikes when it is pushed into the connection terminal device in such a way that its screw opening is axially overlapping with the opening in the clamping surface and the holding projection. Optionally, the positioning contour also has side walls which cause the screw opening of the ring cable lug to be laterally centered with respect to the opening and the holding projection.
Bezüglich eines elektrischen Geräts wird die Aufgabe erfindungsgemäß gelöst durch die Merkmale des Anspruchs 8. Danach ist die erfindungsgemäße Anschlussklemmvorrichtung im Gerät integriert. Das Gehäuse der Anschlussklemmvorrichtung ist hierbei insbesondere integral mit dem Gehäuse des Geräts ausgeführt.With regard to an electrical device, the object is achieved according to the invention by the features of claim 8. The connection terminal device according to the invention is then integrated in the device. The housing of the connection terminal device is in this case, in particular, integral with the housing of the device.
Die Anschlussklemmvorrichtung erlaubt es hierbei insbesonde- re, das Gerät auch unter stark beengten Platzverhältnissen auf einfache Weise mit elektrischen Zuleitungen zu kontaktieren. Die Integration der erfindungsgemäße Anschlussklemmvorrichtung in dem Gerät macht es möglich, das Gerät besonders preisgünstig herzustellen.In particular, the connection terminal device allows the device to be easily contacted with electrical leads, even in tight spaces. The integration of the connection terminal device according to the invention in the device makes it possible to manufacture the device particularly inexpensively.
Nachfolgend werden Ausführungsbeispiele der Erfindung anhand einer Zeichnung näher erläutert. Darin zeigen:Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. In it show:
FIG 1 in einem schematischen Schnitt ein elektrisches Gerät mit einer Anschlussklemmvorrichtung für einen elektrischen Leiter in Öffnungsstellung, FIG 2 die Anschlussklemmvorrichtung gemäß FIG 1 in1 shows a schematic section of an electrical device with a connecting terminal device for an electrical conductor in the open position, 2 shows the terminal device according to FIG. 1 in
Schließstellung, FIG 3 in einer Darstellung gemäß FIG 1 eine alternative3, an alternative
Ausführungsform der Anschlussklemmvorrichtung in Öffnungsstellung,Embodiment of the connection terminal device in the open position,
FIG 4 die Anschlussklemmvorrichtung gemäß FIG 3 in4 shows the terminal device according to FIG. 3 in
Schließstellung, FIG 5 in einer Darstellung gemäß FIG 1 eine weitere5, another in a representation according to FIG
Ausführungsform der Anschlussklemmvorrichtung in Öffnungsstellung undEmbodiment of the terminal device in the open position and
FIG 6 die Anschlussklemmvorrichtung gemäß FIG 5 in6 shows the terminal device according to FIG. 5 in
Schließstellung.Closed position.
Einander entsprechende Teile sind in den Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided with the same reference symbols in the figures.
In FIG 1 ist eine Anschlussklemmvorrichtung 1 dargestellt, die im nur angedeuteten Gehäuse 2 eines elektrischen Geräts 3 integriert ist. Bei dem Gerät 3 handelt es sich beispiels- weise um einen elektrischen Schutzschalter.1 shows a terminal device 1, which is integrated in the housing 2 of an electrical device 3, which is only indicated. The device 3 is, for example, an electrical circuit breaker.
Die Anschlussklemmvorrichtung 1 umfasst ein platten- oder stabförmig ausgebildetes Anschlussstück 4 aus elektrisch leitendem Material, das am Gehäuse 2 ortsfest fixiert ist und mit seinem Freiende 5 in einen von außen zugänglichen Einschubschlitz 6 des Gehäuses 2 hineinragt.The connecting terminal device 1 comprises a plate-shaped or rod-shaped connecting piece 4 made of electrically conductive material, which is fixed in place on the housing 2 and projects with its free end 5 into an insertion slot 6 of the housing 2 that is accessible from the outside.
Die Anschlussklemmvorrichtung 1 umfasst weiterhin einen Klemmrahmen 7, der die Form einer Hülse mit im Wesentlichen viereckigem Querschnitt aufweist, und der auf das Freiende 5 des Anschlussstücks 4 aufgestülpt ist, so dass das Anschlussstück 4 den Klemmrahmen 7 durchsetzt. Der Klemmrahmen 7 ist hierbei mit einer umfänglich eingebrachten Gewindebohrung 8 versehen. Die Gewindebohrung 8 steht in Eingriff mit einer Klemmschraube 9, die in einer Gehäusebohrung 10 drehbar geführt ist, und deren Schraubenfuß 11 auf dem Anschlussstück 4 aufliegt. Um zu verhindern, dass die Klemmschraube 9 aus dem Gehäuse 2 herausfällt, ist weiterhin ein Gehäusevorsprung 12 vorgesehen, der kopfseitig der Klemmschraube 9 in die Gehäusebohrung 10 hineinragt. Die Klemmschraube 9 ist somit zwischen dem Anschlussstück 4 und dem Gehäusevorsprung 12 in axialer Richtung etwa ortsfest gehalten und somit am Gehäuse 2 verliersicher befestigt.The connection clamping device 1 further comprises a clamping frame 7, which has the shape of a sleeve with an essentially square cross section, and which is slipped onto the free end 5 of the connecting piece 4, so that the connecting piece 4 passes through the clamping frame 7. The clamping frame 7 is in this case provided with a circumferentially introduced threaded bore 8. The threaded bore 8 is in engagement with a clamping screw 9 which is rotatably guided in a housing bore 10 and whose screw base 11 rests on the connection piece 4. To prevent the clamping screw 9 from the Housing 2 falls out, a housing projection 12 is further provided, which projects into the housing bore 10 on the head side of the clamping screw 9. The clamping screw 9 is thus held approximately stationary in the axial direction between the connecting piece 4 and the housing projection 12 and is thus secured captively on the housing 2.
Die Anschlussklemmvorrichtung 1 ist insbesondere dazu vorgesehen, einen mit einem Ringkabelschuh 13 endseitig abge- schlossenen elektrischen Leiter 14 verliersicher zu fixieren. Hierzu ist das Anschlussstück 4 mit einem etwa zylindrischen Haltevorsprung 15 versehen. Der Haltevorsprung 15 ist am Anschlussstück 4 bevorzugt durch eine Löt- oder Pressverbindung ortsfest fixiert und ragt von der der Klemmschraube 9 abge- wandten Fläche des Anschlussstücks 4 etwa parallel zurThe connection terminal device 1 is in particular provided for captively securing an electrical conductor 14 terminated at the end with a ring cable lug 13. For this purpose, the connection piece 4 is provided with an approximately cylindrical retaining projection 15. The holding projection 15 is fixed in place on the connector 4, preferably by means of a soldered or press connection, and projects approximately parallel to the surface of the connector 4 facing away from the clamping screw 9
Schraubenachse 16 der Klemmschraube 9 ab. Der HaltevorsprungScrew axis 16 of the clamping screw 9. The retaining tab
15 befindet sich insbesondere innerhalb des vom Klemmrahmen 7 umgebenen Bereichs des Änschlussstücks 4 und ist ausgerichtet auf die der Gewindebohrung 8 entgegengesetzte Fläche des Klemmrahmens 7, die nachfolgend als Klemmfläche 17 bezeichnet ist. Die Klemmflache 17 ist hierbei mit einer Öffnung 18 versehen, die in axialer Richtung bezüglich der Schraubenachse15 is located in particular within the area of the connecting piece 4 surrounded by the clamping frame 7 and is aligned with the surface of the clamping frame 7 opposite the threaded bore 8, which is referred to below as the clamping surface 17. The clamping surface 17 is provided with an opening 18 which is in the axial direction with respect to the screw axis
16 mit dem Haltevorsprung 15 fluchtend angeordnet ist. Die Öffnung 18 ist genügend groß dimensioniert, um den Haltevor- sprung 15 mit geringem Spiel aufnehmen zu können.16 is arranged in alignment with the holding projection 15. The opening 18 is dimensioned large enough to be able to accommodate the retaining projection 15 with little play.
Der elektrische Leiter 14 umfasst ein bevorzugt flexibles, aus mehreren Einzellitzen bestehendes Stromkabel 19, das endseitig mit dem Ringkabelschuh 13 verbunden ist. Der Ringka- beischuh 13 ist hierzu mit einem dem Stromkabel 19 zugewandten Krimpbereich 20 mit dem Stromkabel 19 verkrimpt. Freiend- seitig trägt der Ringkabelschuh 13 einen flachen Klemmsteg 21, in den eine Schrauböffnung 22 eingebracht ist. Seinen in der Anschlusstechnik gebräuchlichen Namen erhält der Ringka- beischuh 13 daher, dass die Schrauböffnung 22 einen ringförmig geschlossenen Rand aufweist. FIG 1 zeigt die Anschlussklemmvorrichtung 1 in ihrer Öffnungsstellung, d.h. vor Anklemmung des Leiters 14. Hierbei ist die Klemmschraube 9 weitgehend, jedoch nicht vollständig aus der Gewindebohrung 8 des Kle mrahmens 7 herausgedreht. In dieser Stellung ist zwischen der aus dem Anschlussstück 4 und dem Haltevorsprung 15 gebildeten Einheit einerseits und der Klemmfläche 17 des Klemmrahmens 7 andererseits ein axialer Abstand gebildet, der mindestens der einfachen, bevorzugt aber mindestens der zweifachen, Materialstärke des Klemmstegs 21 entspricht.The electrical conductor 14 comprises a preferably flexible power cable 19 consisting of several individual strands, which is connected at the end to the ring cable lug 13. For this purpose, the ring cable shoe 13 is crimped to the power cable 19 with a crimping area 20 facing the power cable 19. On the free end, the ring cable lug 13 carries a flat clamping web 21, into which a screw opening 22 is made. The ring cable shoe 13 is given its name in connection technology because the screw opening 22 has an annularly closed edge. 1 shows the terminal device 1 in its open position, ie before the conductor 14 is connected. Here, the clamping screw 9 is largely, but not completely, unscrewed from the threaded bore 8 of the frame 7. In this position, an axial distance is formed between the unit formed from the connecting piece 4 and the holding projection 15 on the one hand and the clamping surface 17 of the clamping frame 7 on the other hand, which corresponds to at least the simple, but preferably at least twice the material thickness of the clamping web 21.
Zur Anklemmung des Leiters 14 an der Anschlussklemmvorrichtung 1 wird zunächst gemäß FIG 1 der Klemmsteg 21 des Ringkabelschuhs 13 in Einschubrichtung 23 zwischen dem Haltevor- sprung 15 und der Klemmfläche 17 hindurch in den Einschubschlitz 6 eingeschoben. Das Einführen des Ringkabelschuhs 13 wird durch eine Positionierkontur des Gehäuses 2 im Bereich des Einschubschlitzes 6 erleichtert, die zumindest eine Rückwand 24 des Einschubschlitzes 6 umfasst. Die Rückwand 24 ist dabei derart angeordnet, dass beim Anschlag des in Einschubrichtung 23 eingeschobenen Klemmstegs 21 an der Rückwand 24 die Schrauböffnung 22 etwa zentriert, zumindest aber in Deckung mit der Öffnung 18 einliegt.To clamp the conductor 14 to the terminal 1, the clamping web 21 of the ring cable lug 13 is first inserted into the insertion slot 23 between the retaining projection 15 and the clamping surface 17 into the insertion slot 6, as shown in FIG. The insertion of the ring cable lug 13 is facilitated by a positioning contour of the housing 2 in the region of the insertion slot 6, which includes at least one rear wall 24 of the insertion slot 6. The rear wall 24 is arranged in such a way that when the clamping web 21 inserted in the insertion direction 23 abuts against the rear wall 24, the screw opening 22 is approximately centered, but at least lies in register with the opening 18.
Der Einschubschlitz 6 weist weiterhin zwei Seitenwände 25 auf, die als Teil der Positionierkontur bevorzugt derart ausgelegt sind, das beim Einschieben des Klemmstegs 21 in den Einschubschlitz 6 die Schrauböffnung 22 automatisch seitlich bezüglich der Öffnung 18 zentriert wird.The insertion slot 6 also has two side walls 25, which are preferably designed as part of the positioning contour in such a way that the screw opening 22 is automatically centered laterally with respect to the opening 18 when the clamping web 21 is inserted into the insertion slot 6.
Zur Fixierung des Ringkabelschuhs 13 an der Anschlussklemmvorrichtung 1 wird nun mittels eines nicht näher dargestellten Betätigungswerkzeugs, insbesondere eines Schraubendrehers, die Klemmschraube 9 in den Klemmrahmen 7 eingeschraubt. Zumal die Klemmschraube 9 zwischen dem Anschlussstück 4 und dem Gehäusevorsprung 12 axialfest bezüglich des Gehäuses 2 gehalten ist, wird beim Einschrauben der Klemmschraube 9 der Klemmrahmen 7 sukzessive in Axialrichtung der Klemmschraube 9 gegenüber dem Anschlussstück 4 verschoben. Dabei durchsetzt der Haltevorsprung 15 die Schrauböffnung 22 des Ringkabelschuhs 13 und dringt nach Art eines Riegels in die Öffnung 18 ein. Der Ringkabelschuh 13 ist damit verliersicher an der Anschlussklemmvorrichtung 1 gehalten.To fix the ring cable lug 13 to the connection terminal device 1, the clamping screw 9 is now screwed into the clamping frame 7 by means of an actuating tool, not shown, in particular a screwdriver. Especially since the clamping screw 9 is held axially fixed with respect to the housing 2 between the connector 4 and the housing projection 12, when the clamping screw 9 is screwed in, the Clamping frame 7 successively moved in the axial direction of the clamping screw 9 with respect to the connector 4. The retaining projection 15 passes through the screw opening 22 of the ring cable lug 13 and penetrates into the opening 18 in the manner of a bolt. The ring cable lug 13 is thus held captively on the connection terminal device 1.
Das Einschrauben der Klemmschraube 9 wird solange fortgesetzt, bis gemäß FIG 2 der Klemmsteg 21 des Ringkabelschuhs 13 zwischen dem Anschlussstück 4 und der Klemmfläche 17 eingespannt und somit klemmkontaktiert ist. Diese Stellung der Anschlussklemmvorrichtung 1 wird als Schließstellung bezeichnet. Der Leiter 14 und das Gerät 3 sind damit über den Ringkabelschuh 13 und das Anschlussstück 4 miteinander elektrisch leitend verbunden.The screwing in of the clamping screw 9 is continued until, according to FIG. 2, the clamping web 21 of the ring cable lug 13 is clamped between the connecting piece 4 and the clamping surface 17 and is thus in contact with the clamp. This position of the terminal device 1 is referred to as the closed position. The conductor 14 and the device 3 are thus connected to one another in an electrically conductive manner via the ring cable lug 13 and the connecting piece 4.
In den FIG 3 und 4 ist eine alternative Ausführungsform der Anschlussklemmvorrichtung 1 in ÖffnungsStellung bzw. in Schließstellung dargestellt. In dieser Ausführung ist der Haltevorsprung 15 an die Klemmschraube 9 einstückig angeformt. Der Haltevorsprung 15 ist dabei als gegenüber dem Körper 26 der Klemmschraube 9 verjüngter Fortsatz ausgebildet, der mit dem Körper 26 bezüglich der Schraubenachse 16 konzentrisch ausgebildet ist und über den Schraubenfuß 11 hinausragt. Mit dem Haltevorsprung 15 korrespondiert eine in das Anschlussstück 4 eingebrachte Bohrung 27, deren Durchmesser mindestens dem Durchmesser des Haltevorsprungs 15 entspricht, der jedoch klein im Vergleich zum Durchmesser des Körpers 26 dimensioniert ist. Der Haltevorsprung 15 durch- setzt die Bohrung 27 und ragt in vorbeschriebener Weise über die der Klemmschraube 9 abgewandte Fläche des Anschlussstücks 4 hinaus.3 and 4 show an alternative embodiment of the connection terminal device 1 in the open position and in the closed position. In this embodiment, the holding projection 15 is integrally formed on the clamping screw 9. The holding projection 15 is designed as an extension tapered with respect to the body 26 of the clamping screw 9, which is formed concentrically with the body 26 with respect to the screw axis 16 and projects beyond the screw base 11. Corresponding to the holding projection 15 is a bore 27 made in the connecting piece 4, the diameter of which corresponds at least to the diameter of the holding projection 15, which is, however, small compared to the diameter of the body 26. The holding projection 15 passes through the bore 27 and projects in the manner described above beyond the surface of the connecting piece 4 facing away from the clamping screw 9.
Eine weitere Ausführungsform der Anschlussklemmvorrichtung 1 ist in den FIG 5 und 6 in ÖffnungsStellung bzw. Schließstellung gezeigt. Bei dieser Ausführungsform ist der Haltevorsprung 15 an der Klemmfläche 17 befestigt und ragt von dort etwa koaxial mit der Schraubenachse 16 in Richtung des Anschlussstücks 4.A further embodiment of the connection terminal device 1 is shown in FIGS. 5 and 6 in the open position or closed position. In this embodiment, the holding projection 15 is fastened to the clamping surface 17 and projects from there approximately coaxially with the screw axis 16 in the direction of the connector 4.
Dieser Haltevorsprung 15 greift in Schließstellung gemäß FIG 6 nach Art eines Riegels in eine korrespondierende Öffnung 28 des Anschlussstücks 4 ein, die etwa zentrisch zur Schraubenachse 16 in das Anschlussstück 4 eingebracht ist. Zur Aufnahme des Haltevorsprungs 15 ist weiterhin eine konzentrisch zur Schraubenachse 16 in den Schraubenfuß 11 einge- brachte Ausnehmung 29 vorgesehen, die die Öffnung 28 quasi in die Klemmschraube 9 hinein verlängert. In the closed position according to FIG. 6, this holding projection 15 engages in a corresponding opening 28 in the connecting piece 4, which is introduced approximately centrally to the screw axis 16 in the connecting piece 4. To accommodate the holding projection 15, a recess 29 is also provided, which is made concentrically with the screw axis 16 in the screw base 11 and extends the opening 28 into the clamping screw 9.

Claims

Patentansprüche claims
1. Anschlussklemmvorrichtung (1) für ein elektrisches Gerät1. Terminal device (1) for an electrical device
(3) mit einem Anschlussstück (4) , einem das Anschlussstück (4) umgebenden Klemmrahmen (7) und einer Klemmschraube (9), wobei der Klemmrahmen (7) mit einer Gewindebohrung (8) versehen ist, die mit der Klemmschraube (9) derart zusammenwirkt, dass durch Drehung der Klemmschraube (9) der Klemmrahmen (7) zur Herstellung einer Klemmkontaktierung eines elek- trischen Leiters (14) gegen das Anschlussstück (4) verschiebbar ist, g e k e n n z e i c h n e t d u r c h einen vom Anschlussstück (4) in Richtung einer der Gewindebohrung (8) gegenüberliegenden Klemmfläche (17) des Klemmrahmens (7) abragenden Haltevorsprung (15) , der in einer Schließstellung riegelartig in eine korrespondierende Öffnung (18) der Klemmfläche (17) hineinsteht, und der in einer Öffnungsstellung von der Klemmfläche (17) beabstandet ist.(3) with a connecting piece (4), a clamping frame (7) surrounding the connecting piece (4) and a clamping screw (9), the clamping frame (7) being provided with a threaded bore (8) which is connected to the clamping screw (9) interacts in such a way that by rotating the clamping screw (9) the clamping frame (7) can be displaced against the connecting piece (4) in order to produce a clamping contact of an electrical conductor (14), characterized by one from the connecting piece (4) in the direction of one of the threaded bore ( 8) opposing clamping surface (17) of the clamping frame (7) projecting holding projection (15), which in a closed position projects like a bolt into a corresponding opening (18) of the clamping surface (17), and which is spaced apart from the clamping surface (17) in an open position ,
2. Anschlussklemmvorrichtung (1) nach Anspruch 1, d a - d u r c h g e k e n n z e i c h n e t , dass der Haltevorsprung (15) am Anschlussstück (4) fixiert ist.2. Connection terminal device (1) according to claim 1, that the holding projection (15) is fixed on the connecting piece (4).
3. Anschlussklemmvorrichtung (1) nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t , dass der Haltevor- sprung (15) an der Klemmschraube (9) fixiert ist und durch eine in das Anschlussstück (4) eingebrachte Bohrung (27) hindurchsteht .3. Terminal clamp device (1) according to claim 1, so that the retaining projection (15) is fixed to the clamping screw (9) and protrudes through a bore (27) made in the connector (4).
4. Anschlussklemmvorrichtung (1) für ein elektrisches Gerät (3) mit einem Anschlussstück (4) , einem das Anschlussstück4. Connection clamping device (1) for an electrical device (3) with a connector (4), one the connector
(4) umgebenden Klemmrahmen (7) und einer Klemmschraube (9) , wobei der Klemmrahmen (7) mit einer Gewindebohrung (8) versehen ist, die mit der Klemmschraube (9) derart zusammenwirkt, dass durch Drehung der Klemmschraube (9) der Klemmrah- men (7) zur Herstellung einer Klemmkontaktierung eines elektrischen Leiters (14) gegen das Anschlussstück (4) verschiebbar ist, g e k e n n z e i c h n e t d u r c h einen von einer der Gewindebohrung (8) gegenüberliegenden Klemmfläche (17) des Klemmrahmens (7) in Richtung des Anschlussstücks (4) abragenden Haltevorsprung (15), der in einer Schließstellung riegelartig in eine korrespondierende Öffnung (28) des An- schlussstücks (4) hineinsteht, und der in einer Öffnungsstellung vom Anschlussstück (4) beabstandet ist.(4) surrounding clamping frame (7) and a clamping screw (9), the clamping frame (7) being provided with a threaded bore (8) which interacts with the clamping screw (9) in such a way that the clamping frame is rotated by turning the clamping screw (9) - Men (7) for producing a clamp contact of an electrical conductor (14) against the connecting piece (4) is displaceable, characterized by one of one of the threaded bores (8) opposite the clamping surface (17) of the clamping frame (7) in the direction of the connector (4) projecting retaining projection (15), which in a closed position projects like a bolt into a corresponding opening (28) of the connector (4), and which is spaced from the connecting piece (4) in an open position.
5. Anschlussklemmvorrichtung (1) nach einem der Ansprüche 1 bis 4, dadur ch ge kenn z e i chne t , dass das Anschlussstück (4) ortsfest an einem Gehäuse (2) fixiert ist.5. Connection terminal device (1) according to one of claims 1 to 4, so that the connection piece (4) is fixed in place on a housing (2).
6. Anschlussklemmvorrichtung (1) nach einem der Ansprüche 1 bis 5, da dur ch ge kenn z e i chne t , dass die Klemmschraube (9) drehbar und unverlierbar in einem Gehäuse (2) gehalten ist.6. Terminal device (1) according to any one of claims 1 to 5, since dur ge ge z z i i chne t that the clamping screw (9) is rotatably and captively held in a housing (2).
7. Anschlussklemmvorrichtung (1) nach einem der Ansprüche 1 bis 6, da ge kenn z e i chne t dur ch eine Positionierkontur (24,25) für einen den Leiter (14) abschließenden Ringkabelschuh (13) aufweist.7. Connection terminal device (1) according to one of claims 1 to 6, since ge mark z e i chne t dur ch has a positioning contour (24, 25) for a ring cable lug (13) that closes the conductor (14).
8. Elektrisches Gerät (3) mit einer Anschlussklemmvorrichtung (1) nach einem der Ansprüche 1 bis 7. 8. Electrical device (3) with a connection terminal device (1) according to one of claims 1 to 7.
PCT/EP2004/000630 2003-02-04 2004-01-26 Terminal clamping device for connecting an annular cable lug and corresponding electrical appliance WO2004070756A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502004003275T DE502004003275D1 (en) 2003-02-04 2004-01-26 CONNECTION TERMINAL FOR CONNECTING A RING CABLE AND ASSOCIATED ELECTRICAL EQUIPMENT
JP2006501604A JP2006518086A (en) 2003-02-04 2004-01-26 Connection terminal device for connecting link cable shoe and related electric device
EP04705093A EP1590818B1 (en) 2003-02-04 2004-01-26 Terminal clamping device for connecting an annular cable lug and corresponding electrical appliance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003104480 DE10304480B4 (en) 2003-02-04 2003-02-04 Terminal device for connecting a ring cable lug and associated electrical device
DE10304480.9 2003-02-04

Publications (1)

Publication Number Publication Date
WO2004070756A1 true WO2004070756A1 (en) 2004-08-19

Family

ID=32730733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/000630 WO2004070756A1 (en) 2003-02-04 2004-01-26 Terminal clamping device for connecting an annular cable lug and corresponding electrical appliance

Country Status (5)

Country Link
EP (1) EP1590818B1 (en)
JP (1) JP2006518086A (en)
CN (1) CN1745445A (en)
DE (2) DE10304480B4 (en)
WO (1) WO2004070756A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN100350675C (en) * 2005-05-31 2007-11-21 时珺 Bootstrap type connecting terminal
EP2293387A1 (en) * 2009-09-02 2011-03-09 Siemens Aktiengesellschaft Combination attachment element for attaching electric conductors
WO2011076388A1 (en) * 2009-12-24 2011-06-30 Schneider Electric Industries Sas Electrical clamping device

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DE102011076563A1 (en) * 2011-05-26 2012-11-29 Siemens Aktiengesellschaft Frame clamp element for clamping electrical conductor to e.g. power switch in electric appliance in industry installation, has contact with planar/lower surfaces with structure geometries for optimizing clamping action of jammed conductor
CN107634355B (en) * 2017-09-16 2023-04-07 国家电网公司 Power distribution network device disconnection connecting piece
JP7119762B2 (en) * 2018-08-22 2022-08-17 トヨタ自動車株式会社 connection module
CN111048913B (en) * 2019-12-25 2021-04-27 中国第一汽车股份有限公司 Electric wire connecting device

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GB347765A (en) * 1930-03-05 1931-05-07 Pieter Justinus De Wet Improvements in and relating to electric terminals
US3891298A (en) * 1973-09-17 1975-06-24 Westinghouse Electric Corp Clip connected terminal lug
US5493085A (en) * 1995-02-17 1996-02-20 Eaton Corporation Spring clip assembly for electrical connections to flat stabs and switches incorporating the same
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FR2795560A1 (en) * 1999-06-23 2000-12-29 Entrelec Sa Electrical wire grip connection/touch proof cover mechanism having wire holder/clamping screw mechanism /holder with side/top protection cover clamping screw covering.
US6280264B1 (en) * 2000-12-28 2001-08-28 Eaton Corporation Terminal connector securing wire with a wide range of diameters to a conductor of an electric power switch and an electric power switch incorporating the terminal connector
EP1267449A2 (en) * 2001-06-13 2002-12-18 Siemens Energy & Automation, Inc. Ring tongue lug retainer molded case circuit breaker

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350675C (en) * 2005-05-31 2007-11-21 时珺 Bootstrap type connecting terminal
EP2293387A1 (en) * 2009-09-02 2011-03-09 Siemens Aktiengesellschaft Combination attachment element for attaching electric conductors
WO2011076388A1 (en) * 2009-12-24 2011-06-30 Schneider Electric Industries Sas Electrical clamping device
CN102782944A (en) * 2009-12-24 2012-11-14 施耐德电器工业公司 Electrical clamping device

Also Published As

Publication number Publication date
CN1745445A (en) 2006-03-08
DE502004003275D1 (en) 2007-05-03
EP1590818B1 (en) 2007-03-21
DE10304480B4 (en) 2005-02-03
JP2006518086A (en) 2006-08-03
DE10304480A1 (en) 2004-08-19
EP1590818A1 (en) 2005-11-02

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