EP2084783B1 - Service switching device and connecting terminal for a service switching device - Google Patents

Service switching device and connecting terminal for a service switching device Download PDF

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Publication number
EP2084783B1
EP2084783B1 EP07819358A EP07819358A EP2084783B1 EP 2084783 B1 EP2084783 B1 EP 2084783B1 EP 07819358 A EP07819358 A EP 07819358A EP 07819358 A EP07819358 A EP 07819358A EP 2084783 B1 EP2084783 B1 EP 2084783B1
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EP
European Patent Office
Prior art keywords
terminal
limb
screw
cover part
switching device
Prior art date
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Active
Application number
EP07819358A
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German (de)
French (fr)
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EP2084783A1 (en
Inventor
Ralf Weber
Klaus-Peter Eppe
Gerd Krebs
Gerhard Ziegler
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ABB AG Germany
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ABB AG Germany
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Publication date
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Publication of EP2084783A1 publication Critical patent/EP2084783A1/en
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Publication of EP2084783B1 publication Critical patent/EP2084783B1/en
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    • 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
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate

Definitions

  • the invention relates to a service switching device having a housing, comprising a front side, a fastening side and an intermediate narrow side, and having a terminal held in a near the narrow side terminal receiving space of the housing terminal comprising a front-accessible clamping screw with an actuating end and a clamping end opposite thereto , Further comprising a clamping body with at least one terminal space in which a busbar and / or a connecting conductor can be pressed by means of the clamping screw against a busbar, wherein the clamping body is accessible via a first housing opening in the wall of the narrow side, and wherein the at least one terminal space through a coupled to the terminal end of the terminal screw and thereby mitEnglishbarer in the direction of movement of the clamping screw terminal cover, which is dimensioned so that it even with screwed onto the bus terminal screw the terminal space be safe to cover, can be covered, according to the preamble of claim 1.
  • the invention further relates to a connection terminal for installation in the terminal receiving space of a service switching device, according to the preamble of claim 12.
  • the DE 44 36 780 C2 shows an installation switching device with an L-shaped terminal cover, which is inserted in a slot on the narrow side of the service switching device and locked in place within the slot. This is costly to manufacture and laborious during assembly.
  • the EP 1 916 740 B1 shows a generic service switching device, with an L-shaped terminal cover, which is clipped onto a circumferential groove at the terminal end of the clamping screw, or which. In order to produce the required circumferential groove at the terminal end of the clamping screw, a double paragraph is to be attached to the terminal end, whereby the solution according to the EP 1 916 740 B1 is relatively expensive.
  • the FR 2 795 560 A1 shows a touch-safe covering mechanism for an electrical terminal, wherein the cover comprises a cap which covers the terminal screw from the side and from above
  • the terminal cover part is rotatably riveted to the terminal screw.
  • the terminal cover is rotatably riveted to the terminal end of the terminal screw to the terminal screw.
  • This has the advantage that only one riveting pin is to be attached to the clamping screw as an additional functional element.
  • the clamping screw thus has a very simple rivet geometry, whereby the clamping screw is simple and inexpensive to manufacture.
  • the fastening of the terminal cover by rotatable riveting at the one rivet pin is a very simple and fast and therefore inexpensive feasible operation. This makes it possible, in particular, the terminal arrangement of a service switching device according to the invention on a production machine with very short cycle times, a so-called high-speed manufacturing machine, as
  • Manufacture assembly that can be freely removed from the machine and mounted in another, also working at very high speed automatic assembly machine.
  • the particular advantage of rotatable riveting is that when tightening the connecting conductor, the screw does not rotate on the stripped conductor end piece.
  • the terminal cover member can be pressed by the clamping screw against the conductor end piece and remains fixed there in the circumferential direction of the clamping screw, while the clamping screw itself can be further tightened. This will avoid material removal from the conductor end, as may occur if the clamping end of the clamping screw were to rotate on the conductor end.
  • Another advantage of the rotatable Vernietens is that the terminal cover is additionally connected captive with the terminal end of the clamping screw.
  • the terminal cover part has an L-shape, a first leg being rotatably riveted to the clamping end of the clamping screw, and a second leg pointing from the first leg towards the front covering at least the first terminal space in a contact-proof manner.
  • the first leg of the terminal cover thus acts simultaneously as a pressure plate for pressing the conductor, which means that no separate component must be provided and thus a further simplification of the device structure is achieved.
  • the second leg of the terminal cover part is narrower than the housing opening associated with the terminal space covered by the terminal cover part, wherein the part of the housing opening left open by the terminal cover part is so small that contact with live device parts is prevented.
  • the terminal cover part consists of plastic.
  • the electrical contact between the clamping screw and the connecting conductor is ensured by the clamping end of the clamping screw which is compressed or crimped due to the riveting operation on the riveting pin.
  • the terminal cover can be rotatably riveted with a metal rivet on a projecting at the terminal end of the clamping screw rivet.
  • the terminal cover is made of metal, wherein at least the second leg is covered at least at the outwardly facing, a contact-accessible side with an insulating material.
  • the covering with an insulating material can, according to an advantageous embodiment, be achieved by fitting or clipping on the second leg a plastic part that envelops it.
  • the covering with an insulating material can also be achieved in accordance with a further advantageous embodiment in that an insulating heat-shrinkable tube is shrunk onto the second leg.
  • the covering with an insulating material can be achieved according to a further advantageous embodiment in that a plastic layer is sprayed onto the second leg at least on the outwardly facing, contact-accessible side or that the second leg is encapsulated in plastic.
  • the clamping screw may be a head-free bolt screw. Because the terminal cover part at the terminal end is attached to the terminal screw, the configuration of the operating end of the terminal screw for the present invention is not important. However, the use of a head-free bolt provides the advantage that it can be very deeply and completely screwed into the clamp body and is also available as a very inexpensive mass part available.
  • the terminal cover according to the invention can be made very cost-effective as a mass part and riveted in the manufacture of the service switching device rotatable with the terminal screw at the terminal end.
  • the terminal cover according to the invention covers the clamping end towards the actuating end of the terminal screw facing part of the terminal at least so far that inadvertent contact of the current Clamping part between the terminal end and the operating end of the terminal screw by a finger or a test finger is avoided.
  • the service switching device has a clamping body with at least two first and one second housing opening from the front side adjacent wall of the narrow side accessible, based on the front side one behind the other, separated by a busbar inserted into the terminal body from each other terminal spaces for connecting a Busbar and / or a connection conductor, wherein a first, lying between the busbar and the front terminal space by a coupled to the terminal end of the terminal screw and thereby entOSEbares in the direction of movement of the clamping screw terminal cover, which is so dimensioned that it is also on the busbar screwed terminal screw covering the first terminal space safe to touch, can be covered, wherein the terminal cover is rotatably riveted to the terminal screw.
  • the first terminal space of this advantageous embodiment is usually for the connection of leads, and the second terminal space is provided for connecting the terminal lugs of busbars. If a busbar is connected in the second terminal space, an inadvertent contact of the second terminal space is virtually virtually eliminated. An inadvertent contact of the first terminal space is by the invention on the Terminal screw rotatably riveted and mitEnglishbare from this terminal cover avoided.
  • FIG. 1 schematically shows a partial view of a service switching device 1 with a Isolierstoffgeophuse 8 comprising a front front side 2, a rear front side 3, a front side opposite mounting side 4, a front and the rear front connecting front narrow side 5, the rear front side 3 and the mounting side 4th connecting rear narrow side 6 and two broad sides 7, of which only one in the FIG. 1 is visible.
  • a service switching device 1 with a Isolierstoffgeophuse 8 comprising a front front side 2, a rear front side 3, a front side opposite mounting side 4, a front and the rear front connecting front narrow side 5, the rear front side 3 and the mounting side 4th connecting rear narrow side 6 and two broad sides 7, of which only one in the FIG. 1 is visible.
  • the service switching device may be, for example, a circuit breaker, a residual current circuit breaker or the like. Inside the insulating material are live parts.
  • a terminal receiving space (here in Fig. 1 not visible) formed in which a terminal 10 is held.
  • the terminal is in FIG. 2 shown in detail.
  • the terminal 10 comprises a terminal screw 24 accessible from the rear front 3 through a terminal opening 9 and a front terminal space 20 and a rear terminal space 21 arranged one behind the other viewed from the front and through a front 91 and a rear housing opening 92 in the rear Narrow side 6 of the housing for the connection of a connecting conductor or a busbar or the terminal lug of a busbar are accessible.
  • the first, front housing opening 91 has an approximately in the longitudinal direction of the rear narrow side 6 extending rectangular contour and serves for the connection of connecting wires.
  • the second, rear housing opening 92 is mounted in a channel-shaped shoulder in the rear narrow side 6 and has a transverse rectangular contour. It is intended for clamping the terminal lug of a busbar.
  • the clamping screw 24 is coupled to a terminal cover, which is entrained in the longitudinal displacement direction of the clamping screw of this and covers the front terminal space 20 touch safe from the outside.
  • a second leg 66 of this terminal cover is according to Fig. 1 visible from the outside when the device housing is shot. It partly covers the front housing opening 91. To the right and left of the second leg 66 of the terminal cover part, an uncovered area 93 of the front housing opening 91 remains free.
  • the uncovered area 93 is so narrow that it is not possible to reach through this with a human finger or a standardized test finger through the front housing opening 91 into the interior of the terminal receiving space and there to touch about live parts.
  • terminal cover part or the second leg 66 so wide that the front housing opening 91 is completely covered.
  • the rear housing opening 92 is so narrow that a reaching through with a human or a test finger is effectively prevented.
  • the switching device according to the invention is configured overall safe to touch.
  • FIG. 2 shows a schematic sectional view of an embodiment of a connecting terminal 10 according to the invention.
  • This comprises a clamping body 12, which may be cylindrical or with box-shaped outer contour and having a clamping space located in the interior for receiving the terminals to be clamped.
  • the terminal space is closed at the opposite side of the clamping opening 9 by a limiting web 17.
  • the terminal screw 24 has an actuating end 26 with a slot 28 for engagement of an actuating tool, such as a screwdriver, and the operating end 26 opposite terminal end 30, with a connection conductor (not shown here) by pressure against a busbar 36 is clamped.
  • the slot 28 may have all possible known configurations or profiles for interaction with a variety of known operating tools, such as a Phillips, a Pozidrive, a Torx profile, but it can also be a combination of different profiles are used.
  • the busbar 36 is mounted fixed to the housing in the interior of the terminal space in the embodiment shown here. It divides the terminal space in a front terminal space 20 between the bus bar 36 and the terminal opening 9, and a rear terminal space 21 between the bus bar 36 and the clamping body 12 to the mounting side 4 limiting boundary web 17th
  • the clamping body 12 is guided in the terminal receiving space longitudinally displaceable parallel to the narrow side wall.
  • the clamping end of the clamping screw is first pressed against the conductor inserted in the front clamping space and clamps it against the busbar.
  • this is supported, so to speak, on the busbar 36 and the clamping body 12 is moved upward in the direction of the front, until finally the boundary web 17 in the rear terminal space 21 possibly introduced busbar (not shown here) against the bus bar 36 presses.
  • the busbar 36 runs into the interior of the device in a connecting conductor forming a drain end 37, are connected to the other components and modules of the service switching device, such as triggers or contact points.
  • the busbar 36 is bent in a U-shape, so that a curved piece 361 and an adjoining, parallel to the busbar 36 extending in the rear terminal space 21 leg 362 arise. If now the terminal lug of a busbar is inserted into the rear terminal space 21, then this is encompassed on both sides by the leg 362 and the limiting web 17, and by tightening the clamping screw 24 a good mechanical and electrical contact is ensured.
  • the terminal screw 24 is in the embodiments shown here, a headless bolt, also called grub screw. This has the advantage of being complete can be screwed into the clamp body 12, without a head would survive to the outside. But of course, a terminal according to the invention could also be designed with a cap screw.
  • FIG. 3 shows in enlarged scale the clamping end of the clamping screw 24 with the rotatably riveted thereto terminal cover 60th
  • the terminal cover 60 has approximately an L-shape and is rotatably riveted with its first, the short leg 62 with a rivet 31 projecting at the clamping end 30 of the clamping screw.
  • the rotatable riveting is known in principle and can be done in various ways.
  • the first leg carries an opening 34 through which the rivet pin 31 engages, and in the region of the opening 34 a recess 35 is provided.
  • the depression 35 is dimensioned such that it absorbs the beading or compression 33 produced during riveting at the free end of the rivet stud 31, so that they do not protrude downwards in the direction of a connecting lead to be clamped over the first limb 62.
  • the riveting can be carried out, for example, path-controlled, so that the Nietwulst 33 leaves a certain margin in the contact region with the first leg 62 and thus the clamping screw 24 can rotate relative to the terminal cover 60.
  • the terminal cover part 60 is entrained by the terminal screw 24 when it is screwed in and out.
  • a plate-shaped second leg 66 Approximately perpendicular to the first leg 62 of the terminal cover 60 extends a plate-shaped second leg 66.
  • the plate-shaped leg 66 covers that part of the front terminal space 20, which is above the terminal end 30 of the terminal screw 24, from the side of the front housing opening 91 forth safe from contact.
  • the terminal 10 of the invention with the terminal cover 60 is mounted so that the plate-shaped second leg 66 of the terminal 60 is guided on the inside of the housing wall in the region of the front housing opening 91 parallel to the course of the rear narrow side 6.
  • the terminal cover 60 is made of an insulating material, such as plastic.
  • a connection conductor which is not shown here, the electrical contact between the connection conductor and the clamping screw is produced at the rivet bead 33.
  • the connection conductor may also partly come into contact with the plastic of the first leg 62.
  • FIG. 5 an alternative embodiment for a rotatable riveting of the plastic terminal cover 60 is shown with the clamping screw 24.
  • This variant is used when a contact of the connecting conductor with the first leg 62 of the terminal cover is undesirable, if, for example, a pressing of the plastic leg 62 is to be omitted on the connection conductor.
  • the rivet pin 31 is guided through an opening 34 in the first leg 62 of the terminal cover 60.
  • a metal pressure plate 32 is mounted, so that the terminal cover is riveted by means of the pressure plate 32 with the clamping end 30 of the clamping screw 24.
  • a large-area metal contact between the clamping screw and a clamped connection conductor is ensured.
  • FIG. 4 Another embodiment shows the FIG. 4 ,
  • the terminal cover 60 is designed as a sheet metal angle. Its first leg is rotatably riveted with the clamping screw at the terminal end. The rotatable riveting of the first leg 62 of the terminal cover 60 with the rivet pin takes place in an analogous manner as above FIG. 3 described.
  • the sheet-metal angle is covered on the side, which can be touched from the outside in the installed state, with an insulating material and thus carries on this side an insulating layer 95th It may be, for example, a sprayed-on plastic layer.
  • the terminal cover is characterized very stable and inexpensive to produce. You can see in Fig. 4 also that the second leg 66 of the terminal cover part with the applied insulating layer 95 is narrower than the first leg 62.
  • FIG. 6 There is shown another way to make the second leg of a metal terminal cover with little effort touch-safe.
  • a U-shaped plug-on part 96 is pushed over the second leg 66.
  • the second leg 66 of the terminal cover part 60 is held in a sheath and covered at least on its broad sides of insulating material.
  • the U-shaped plug-on part 96 has two longitudinal legs 964, 965, which are attached to a transverse web 963.
  • the longitudinal legs 964 are dimensioned such that in the installation position of the clamp they completely cover the part of the broad side of the second leg 66 of the terminal cover part 60 that can be touched from outside through the front housing opening 91. Viewed from the outside, this results in an installation switching device with a clamp with plugged on Aufsteckteil an image that the Fig. 1 equivalent.
  • the plug-on part 96 may be designed such that it covers the second leg 66 of the terminal cover part 60 also on its narrow sides. It can also be designed so that the narrow sides are not covered, because these are the contact from the outside through the front housing opening 91 through anyway not or very difficult to access.
  • the leg 965 of the plug-on part facing inwardly in the plugged-on state can be made just as long as the leg 964 covering the reachable broad side of the second leg. However, it can also be shorter, and shortened to a kind of holding claw in the extreme case. Its main function is that of fixing the plug-on part.
  • the fixation of the Aufsteckteils 96 on the second leg 66 can be done for example in the form of a press fit.
  • the fixation of the Aufsteckteils on the second leg can also, as in the FIG. 7 shown, done by clipping on.
  • the Aufsteckteil 961 carries on the inside of the two legs 964, 965 each inwardly projecting studs or similarly acting differently shaped locking means 962.
  • the second leg 661 of the terminal cover carries depressions or through holes 662 at points in the plugged-on with the nubs 962 or correspond to the functionally identical acting differently shaped locking means.
  • Another, not figuratively shown here embodiment is that the second leg 66 of the terminal cover is coated with an insulating shrink tube, which is then secured by captive carried out in a known manner, such as by heating, with the terminal cover.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Casings For Electric Apparatus (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

The device (10) has a clamping screw (24) accessible from a front side and including an operating end (26) and a clamping end (30) opposite to the operating end. A clamping body (12) is accessible by a housing opening in a wall of a narrow side. A clamping area is covered by a clamping covering part (60) that points toward a front side in a movement direction of the clamping screw and is coupled with the clamping end. The clamping covering part is dimensioned such that the clamping covering part covers the clamping area by the clamping screw.

Description

Die Erfindung betrifft ein Installationsschaltgerät mit einem Gehäuse, umfassend eine Frontseite, eine Befestigungsseite und eine dazwischenliegende Schmalseite, und mit einer in einem nahe der Schmalseite befindlichen Klemmenaufnahmeraum des Gehäuses gehaltenen Anschlussklemme, umfassend eine von der Frontseite zugängliche Klemmschraube mit einem Betätigungsende und einem diesem gegenüberliegenden Klemmende, umfassend weiter einen Klemmkörper mit wenigstens einem Klemmraum, in dem eine Sammelschiene und/oder ein Anschlussleiter mittels der Klemmschraube gegen eine Stromschiene drückbar ist, wobei der Klemmkörper über eine erste Gehäuseöffnung in der Wand der Schmalseite zugänglich ist, und wobei der wenigstens eine Klemmraum durch ein mit dem Klemmende der Klemmenschraube gekoppeltes und dadurch in Bewegungsrichtung der Klemmschraube mitnehmbares Klemmenabdeckteil , das so bemessen ist, dass es auch bei auf die Stromschiene aufgeschraubter Klemmenschraube den Klemmraum berührungssicher abdeckt, abdeckbar ist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a service switching device having a housing, comprising a front side, a fastening side and an intermediate narrow side, and having a terminal held in a near the narrow side terminal receiving space of the housing terminal comprising a front-accessible clamping screw with an actuating end and a clamping end opposite thereto , Further comprising a clamping body with at least one terminal space in which a busbar and / or a connecting conductor can be pressed by means of the clamping screw against a busbar, wherein the clamping body is accessible via a first housing opening in the wall of the narrow side, and wherein the at least one terminal space through a coupled to the terminal end of the terminal screw and thereby mitnehmbarer in the direction of movement of the clamping screw terminal cover, which is dimensioned so that it even with screwed onto the bus terminal screw the terminal space be safe to cover, can be covered, according to the preamble of claim 1.

Die Erfindung betrifft weiterhin eine Anschlussklemme für den Einbau in den Klemmenaufnahmeraum eines Installationsschaltgerätes, gemäß dem Oberbegriff des Anspruchs 12.The invention further relates to a connection terminal for installation in the terminal receiving space of a service switching device, according to the preamble of claim 12.

Aus der EP 809 325 B1 ist ein Installationsschaltgerät bekannt mit einer Doppelkammerklemme. Eine handelsübliche, kopffreie Bolzenschraube wird dabei in den zylindrischen Abschnitt eines Klemmkörpers eingeschraubt. Die Schraube kann dabei vollständig in den Klemmkörper eingeschraubt werden, so dass sie die Zuführungsöffnung im Gehäuse verdeckt. Dadurch ist zwar ein Fehlanschluss nicht mehr möglich, jedoch ist eine unbeabsichtigte Berührung der Klemmenöffnung gegeben, was zu Sicherheitsrisiken führen kann.From the EP 809 325 B1 An installation switching device is known with a double-chamber terminal. A commercial headless screw bolt is screwed into the cylindrical portion of a clamp body. The screw can be completely screwed into the clamp body so that it covers the feed opening in the housing. As a result, a faulty connection is no longer possible, however there is an inadvertent contact with the terminal opening, which can lead to safety risks.

Die DE 44 36 780 C2 zeigt ein Installationsschaltgerät mit einem L-förmigen Klemmenabdeckteil, das in einem Schlitz an der Schmalseite des Installationsschaltgerätes eingefügt und innerhalb des Schlitzes ortsfest verrastet ist. Dies ist kostenintensiv in der Herstellung und aufwändig bei der Montage.The DE 44 36 780 C2 shows an installation switching device with an L-shaped terminal cover, which is inserted in a slot on the narrow side of the service switching device and locked in place within the slot. This is costly to manufacture and laborious during assembly.

Die EP 1 916 740 B1 zeigt ein gattungsgemäßes Installationsschaltgerät, mit einem L-förmigen Klemmenabdeckteil, welches auf eine umlaufende Nut am Klemmende der Klemmschraube aufklipsbar ist, oder welches. Um die erforderliche umlaufende Nut am Klemmende der Klemmschraube zu erzeugen, ist an dem Klemmende ein doppelter Absatz anzubringen, wodurch die Lösung gemäß der EP 1 916 740 B1 relativ kostenintensiv ist.The EP 1 916 740 B1 shows a generic service switching device, with an L-shaped terminal cover, which is clipped onto a circumferential groove at the terminal end of the clamping screw, or which. In order to produce the required circumferential groove at the terminal end of the clamping screw, a double paragraph is to be attached to the terminal end, whereby the solution according to the EP 1 916 740 B1 is relatively expensive.

Die FR 2 795 560 A1 zeigt einen berührungssicheren Abdeckmechanismus für eine elektrische Anschlussklemme, wobei die Abdeckung eine Abdeckkappe umfasst, die die Anschlussklemmenschraube seitlich und von oben abdecktThe FR 2 795 560 A1 shows a touch-safe covering mechanism for an electrical terminal, wherein the cover comprises a cap which covers the terminal screw from the side and from above

Es ist die Aufgabe der vorliegenden Erfindung, ein gattungsgemäßes Installationsschaltgerät und eine gattungsgemäße Anschlussklemme für ein Installationsschaltgerät zu schaffen, bei der eine Befestigung des Klemmenabdeckteils an der Klemmschraube einfacher und kostengünstiger herstellbar ist.It is the object of the present invention to provide a generic service switching device and a generic terminal for a service switching device, in which an attachment of the terminal cover on the clamping screw is easier and less expensive to produce.

Bezüglich des Installationsschaltgerätes wird die Aufgabe gelöst durch ein gattungsgemäßes Installationsschaltgerät mit den kennzeichnenden Merkmalen des Anspruchs 1.With regard to the service switching device, the object is achieved by a generic service switching device with the characterizing features of claim 1.

Bezüglich der Anschlussklemme wird die Aufgabe gelöst durch eine gattungsgemäße Anschlussklemme mit den kennzeichnenden Merkmalen des Anspruchs 12.With respect to the terminal, the object is achieved by a generic terminal with the characterizing features of claim 12.

Erfindungsgemäß ist also das Klemmenabdeckteil mit der Klemmenschraube drehbar vernietet. Insbesondere in vorteilhafte Weise ist das Klemmenabdeckteil an dem Klemmende der Klemmenschraube drehbar an die Klemmenschraube angenietet. Das hat den Vorteil, dass an der Klemmschraube nur ein Nietstift als zusätzliches Funktionselement anzubringen ist. Die Klemmschraube weist damit eine sehr einfache Nietgeometrie auf, wodurch die Klemmschraube einfach und kostengünstig herzustellen ist. Auch das Befestigen des Klemmenabdeckteils durch drehbares Vernieten an dem einen Nietstift ist ein sehr einfacher und schnell und damit kostengünstig durchführbarer Arbeitsgang. Damit ist es insbesondere möglich, die Klemmenanordnung eines erfindungsgemäßen Installationsschaltgerätes auf einem Fertigungsautomaten mit sehr kurzen Taktzeiten, einem sogenannten Hochgeschwindigkeitsfertigungsautomaten, alsThus, according to the invention, the terminal cover part is rotatably riveted to the terminal screw. Particularly advantageously, the terminal cover is rotatably riveted to the terminal end of the terminal screw to the terminal screw. This has the advantage that only one riveting pin is to be attached to the clamping screw as an additional functional element. The clamping screw thus has a very simple rivet geometry, whereby the clamping screw is simple and inexpensive to manufacture. Also, the fastening of the terminal cover by rotatable riveting at the one rivet pin is a very simple and fast and therefore inexpensive feasible operation. This makes it possible, in particular, the terminal arrangement of a service switching device according to the invention on a production machine with very short cycle times, a so-called high-speed manufacturing machine, as

Baugruppe zu fertigen, die frei fallend aus dem Automaten entnommen und in einem weiteren, ebenfalls mit sehr hoher Geschwindigkeit arbeitendem Montageautomaten montiert werden kann. Der besondere Vorteil des drehbaren Vernietens besteht darin, dass beim Festklemmen des Anschlussleiters die Schraube sich nicht auf dem abisolierten Leiterendstück dreht. Das Klemmenabdeckteil kann durch die Klemmschraube gegen das Leiterendstück gedrückt werden und bleibt dort in Umfangsrichtung der Klemmschraube fixiert, während die Klemmschraube selbst weiter angezogen werden kann. Dadurch wird ein Materialabtrag von dem Leiterendstück, wie er vorkommen kann, wenn das Klemmende der Klemmschraube sich auf dem Leiterendstück drehen würde, vermieden werden. Ein weiterer Vorteil des drehbaren Vernietens besteht darin, dass das Klemmenabdeckteil zusätzlich noch unverlierbar mit dem Klemmende der Klemmschraube verbunden ist.Manufacture assembly that can be freely removed from the machine and mounted in another, also working at very high speed automatic assembly machine. The particular advantage of rotatable riveting is that when tightening the connecting conductor, the screw does not rotate on the stripped conductor end piece. The terminal cover member can be pressed by the clamping screw against the conductor end piece and remains fixed there in the circumferential direction of the clamping screw, while the clamping screw itself can be further tightened. This will avoid material removal from the conductor end, as may occur if the clamping end of the clamping screw were to rotate on the conductor end. Another advantage of the rotatable Vernietens is that the terminal cover is additionally connected captive with the terminal end of the clamping screw.

Gemäß einer besonders vorteilhaften Ausführungsform weist das Klemmenabdeckteil eine L - Form auf, wobei ein erster Schenkel mit dem Klemmende der Klemmschraube drehbar vernietet ist, und wobei ein zweiter, von dem ersten Schenkel aus in Richtung der Frontseite weisender Schenkel wenigstens den ersten Klemmraum berührungssicher abdeckt. Der erste Schenkel des Klemmenabdeckteils wirkt somit gleichzeitig als Druckplatte zum Andrücken des Leiters, wodurch dafür kein separates Bauteil vorgesehen werden muß und somit eine weitere Vereinfachung des Geräteaufbaus erreicht wird.According to a particularly advantageous embodiment, the terminal cover part has an L-shape, a first leg being rotatably riveted to the clamping end of the clamping screw, and a second leg pointing from the first leg towards the front covering at least the first terminal space in a contact-proof manner. The first leg of the terminal cover thus acts simultaneously as a pressure plate for pressing the conductor, which means that no separate component must be provided and thus a further simplification of the device structure is achieved.

Gemäß einer weiteren Ausführungsform ist der zweite Schenkel des Klemmenabdeckteils schmaler als die dem von dem Klemmenabdeckteil bedeckten Klemmraum zugeordnete Gehäuseöffnung, wobei der von dem Klemmenabdeckteil freigelassene Teil der Gehäuseöffnung so klein ist, dass durch diesen hindurch eine Berührung spannungsführender Geräteteile verhindert ist. Dies ist insbesondere dann von Vorteil, wenn Anschlussleiter mit großen Leiterquerschnitten oder Anschlussleiter, deren Leiterenden mit Aderendhülsen umgeben sind und dadurch einen größeren Querschnitt aufweisen, in der Anschlussklemme angeklemmt werden sollen. Dann ist die Öffnung des Klemmraums und dem Klemmraum zugeordnete Gehäuseöffnung entsprechend in einer entsprechenden Querschnittsgröße vorzusehen. Es kann dann leicht geschehen, dass die Gehäuseöffnung so groß wird, dass ein menschlicher Finger oder ein genormter Prüffinger, wie er üblicherweise verwendet wird, um die Berührsicherheit elektrischer Geräte zu überprüfen, durch die Öffnung passt und eine Berührung spannungsführender Teile im Geräteinneren oder an der Klemme möglich wird. Dies soll aber bei berührungsgeschützten Installationsschaltgeräten nicht möglich sein. Bekannte Klemmenabdeckteile decken daher die Gehäuseöffnung im Bereich des Klemmraums flächendeckend ab. Bei großen Gehäuseöffnungen macht das entsprechend große Klemmenabdeckteile erforderlich. Durch die erfindungsgemäße Gestaltung des Klemmenabdeckteils wird es möglich, die Klemmenabdeckteile kleiner, leichter und damit materialsparender herzustellen. Die Berührsicherheit ist dennoch gegeben.According to a further embodiment, the second leg of the terminal cover part is narrower than the housing opening associated with the terminal space covered by the terminal cover part, wherein the part of the housing opening left open by the terminal cover part is so small that contact with live device parts is prevented. This is particularly advantageous when connecting conductors with large conductor cross sections or connecting conductors, the conductor ends are surrounded with ferrules and thus have a larger cross-section, to be clamped in the terminal. Then, the opening of the terminal space and the terminal space associated housing opening is provided in accordance with a corresponding cross-sectional size. It can then easily happen that the housing opening becomes so large that a human finger or a standard test finger, as it is commonly used, the touch safety of electrical equipment check through the opening and a contact of live parts inside the device or on the terminal is possible. However, this should not be possible with touch-protected installation switching devices. Known terminal cover parts therefore cover the housing opening in the region of the terminal space area-covering. For large housing openings, the correspondingly large terminal cover parts are required. The inventive design of the terminal cover, it is possible to make the terminal cover parts smaller, lighter and thus more material-saving. The touch safety is still given.

Gemäß einer besonders vorteilhaften Ausführungsform besteht das Klemmenabdeckteil aus Kunststoff. Der elektrische Kontakt zwischen der Klemmschraube und dem Anschlussleiter ist durch das aufgrund des Nietvorgangs an dem Nietstift gestauchte oder gebördelte Klemmende der Klemmschraube sichergestellt.According to a particularly advantageous embodiment, the terminal cover part consists of plastic. The electrical contact between the clamping screw and the connecting conductor is ensured by the clamping end of the clamping screw which is compressed or crimped due to the riveting operation on the riveting pin.

Für Anwendungsfälle, bei denen es nicht erwünscht ist, dass das Leiterende mit Kunststoff in Berührung kommt, kann gemäß einer weiteren besonders vorteilhaften Ausführungsform das Klemmenabdeckteil mit einer metallenen Nietplatte an einem an dem Klemmende der Klemmschraube abstehenden Nietzapfen drehbar vernietet sein.For applications in which it is not desirable that the conductor end comes into contact with plastic, according to a further particularly advantageous embodiment, the terminal cover can be rotatably riveted with a metal rivet on a projecting at the terminal end of the clamping screw rivet.

Gemäß einer weiteren vorteilhaften Ausführungsform besteht das Klemmenabdeckteil aus Metall, wobei wenigstens der zweite Schenkel wenigstens an der nach außen weisenden, einer Berührung zugänglichen Seite mit einem Isolierstoff bedeckt ist.According to a further advantageous embodiment, the terminal cover is made of metal, wherein at least the second leg is covered at least at the outwardly facing, a contact-accessible side with an insulating material.

Die Bedeckung mit einem Isolierstoff kann gemäß einer vorteilhaften Ausführungsform dadurch erreicht werden, dass auf den zweiten Schenkel ein diesen umhüllendes Kunststoffteil aufgesteckt oder aufgeklipst ist.The covering with an insulating material can, according to an advantageous embodiment, be achieved by fitting or clipping on the second leg a plastic part that envelops it.

Die Bedeckung mit einem Isolierstoff kann gemäß einer weiteren vorteilhaften Ausführungsform auch dadurch erreicht werden, dass auf den zweiten Schenkel ein isolierender Schrumpfschlauch aufgeschrumpft ist.The covering with an insulating material can also be achieved in accordance with a further advantageous embodiment in that an insulating heat-shrinkable tube is shrunk onto the second leg.

Die Bedeckung mit einem Isolierstoff kann gemäß einer weiteren vorteilhaften Ausführungsform dadurch erreicht werden, dass auf den zweiten Schenkel wenigstens an der nach außen weisenden, einer Berührung zugänglichen Seite eine Kunststoffschicht aufgespritzt ist oder dass der zweite Schenkel mit Kunststoff umspritzt ist..The covering with an insulating material can be achieved according to a further advantageous embodiment in that a plastic layer is sprayed onto the second leg at least on the outwardly facing, contact-accessible side or that the second leg is encapsulated in plastic.

Gemäß einer weiteren vorteilhaften Ausführungsform kann die Klemmschraube eine kopffreie Bolzenschraube sein. Denn da das Klemmenabdeckteil an dem Klemmende der Klemmenschraube angebracht ist, ist die Ausgestaltung des Betätigungsendes der Klemmenschraube für die vorliegende Erfindung nicht von Bedeutung. Die Verwendung einer kopffreien Bolzenschraube bietet allerdings den Vorteil, dass diese sehr tief und vollständig in den Klemmkörper eingeschraubt werden kann und darüber hinaus als sehr preiswertes Massenteil zur Verfügung steht.According to a further advantageous embodiment, the clamping screw may be a head-free bolt screw. Because the terminal cover part at the terminal end is attached to the terminal screw, the configuration of the operating end of the terminal screw for the present invention is not important. However, the use of a head-free bolt provides the advantage that it can be very deeply and completely screwed into the clamp body and is also available as a very inexpensive mass part available.

Das erfindungsgemäße Klemmenabdeckteil kann dabei sehr kostengünstig als Massenteil hergestellt und bei der Fertigung des Installationsschaltgerätes drehbar mit der Klemmenschraube an deren Klemmende vernietet werden. Wenn ein Anschlussleiter in die Klemme eingeführt und die Klemme dann geschlossen ist, wenn also die Klemmenschraube eingedreht ist, dann deckt das erfindungsgemäße Klemmenabdeckteil den vom Klemmende in Richtung Betätigungsende der Klemmenschraube weisenden Teil der Klemme wenigstens so weit ab, dass eine unbeabsichtigte Berührung des Strom führenden Klemmenteils zwischen dem Klemmende und dem Betätigungsende der Klemmenschraube durch einen Finger oder einen Prüffinger vermieden ist.The terminal cover according to the invention can be made very cost-effective as a mass part and riveted in the manufacture of the service switching device rotatable with the terminal screw at the terminal end. When a lead is inserted into the terminal and the terminal is then closed, ie when the terminal screw is screwed, then the terminal cover according to the invention covers the clamping end towards the actuating end of the terminal screw facing part of the terminal at least so far that inadvertent contact of the current Clamping part between the terminal end and the operating end of the terminal screw by a finger or a test finger is avoided.

Gemäß einer besonders vorteilhaften Ausführungsform weist das Installationsschaltgerät einen Klemmkörper mit wenigstens zwei über eine erste und eine zweite Gehäuseöffnung von der der Frontseite benachbarten Wand der Schmalseite zugänglichen, bezogen auf die Frontseite hintereinander liegenden, durch eine in den Klemmkörper eingesetzte Stromschiene voneinander abgeteilten Klemmräumen zum Anschluss einer Sammelschiene und/oder eines Anschlussleiters auf, wobei ein erster, zwischen der Stromschiene und der Frontseite liegender Klemmraum durch ein mit dem Klemmende der Klemmenschraube gekoppeltes und dadurch in Bewegungsrichtung der Klemmschraube mitnehmbares, Klemmenabdeckteil, das so bemessen ist, dass es auch bei auf die Stromschiene aufgeschraubter Klemmenschraube den ersten Klemmraum berührungssicher abdeckt, abdeckbar ist, wobei das Klemmenabdeckteil mit der Klemmenschraube drehbar vernietet ist.According to a particularly advantageous embodiment, the service switching device has a clamping body with at least two first and one second housing opening from the front side adjacent wall of the narrow side accessible, based on the front side one behind the other, separated by a busbar inserted into the terminal body from each other terminal spaces for connecting a Busbar and / or a connection conductor, wherein a first, lying between the busbar and the front terminal space by a coupled to the terminal end of the terminal screw and thereby entnehmbares in the direction of movement of the clamping screw terminal cover, which is so dimensioned that it is also on the busbar screwed terminal screw covering the first terminal space safe to touch, can be covered, wherein the terminal cover is rotatably riveted to the terminal screw.

Der erste Klemmraum dieser vorteilhaften Ausführungsform ist dabei üblicherweise für den Anschluss von Anschlussdrähten, und der zweite Klemmraum ist zum Anschließenden der Anschlussfahnen von Sammelschienen vorgesehen. Wenn eine Sammelschiene in dem zweiten Klemmraum angeschlossen ist, so ist eine unbeabsichtigte Berührung des zweiten Klemmraums praktisch nahezu ausgeschlossen. Eine unbeabsichtigte Berührung des ersten Klemmraums wird durch das erfindungsgemäß auf der Klemmenschraube drehbar vernietete und von dieser mitnehmbare Klemmenabdeckteil vermieden.The first terminal space of this advantageous embodiment is usually for the connection of leads, and the second terminal space is provided for connecting the terminal lugs of busbars. If a busbar is connected in the second terminal space, an inadvertent contact of the second terminal space is virtually virtually eliminated. An inadvertent contact of the first terminal space is by the invention on the Terminal screw rotatably riveted and mitnehmbare from this terminal cover avoided.

Anhand der Zeichnungen, in denen vier Ausführungsbeispiele der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert und beschrieben werden.Reference to the drawings, in which four embodiments of the invention are shown, the invention and further advantageous refinements and improvements of the invention will be explained and described in detail.

Es zeigen:

Figur 1:
schematisch die Außenansicht eines erfindungsgemäßen Installations- schaltgerätes,
Figur 2:
schematisch eine Schnittansicht einer ersten Ausführungsform einer erfin- dungsgemäßen Anschlussklemme,
Figur 3:
schematisch eine vergrößerte Darstellung der Klemmschraube mit dem drehbar angenieteten Klemmenabdeckteil gemäß Fig. 2 ,
Figur 4:
eine weitere Ausführungsform der Erfindung, bei der das Klemmenabdeckteil aus Metall besteht und die im Einbauzustand von außen berührbare Seite mit einem Isolierstoff bedeckt ist,
Figur 5:
eine weitere Ausführungsform der Erfindung, bei der das Klemmenabdeckteil aus Kunststoff besteht und mittels einer Druckplatte drehbar mit der Klemm- schraube vernietet ist,
Figur 6:
eine weitere Ausführungsform der Erfindung, bei der das Klemmenabdeckteil aus Metall besteht und mit einem Aufsteckteil aus Isoliermaterial bedeckt ist, sowie
Figur 7
eine Variante zur Gestaltung des Aufsteckteils in Verbindung mit dem Klem- menabdeckteil gemäß Fig. 6.
Show it:
FIG. 1:
FIG. 2 schematically the external view of an installation switching device according to the invention, FIG.
FIG. 2:
1 is a schematic sectional view of a first embodiment of a connecting terminal according to the invention;
FIG. 3:
schematically an enlarged view of the clamping screw with the rotatably riveted Klemmabdeckteil according to Fig. 2 .
FIG. 4:
a further embodiment of the invention, wherein the terminal cover is made of metal and which is covered in the installed state externally accessible side with an insulating material,
FIG. 5:
a further embodiment of the invention, wherein the terminal cover is made of plastic and is rotatably riveted by means of a pressure plate with the clamping screw,
FIG. 6:
another embodiment of the invention, wherein the terminal cover is made of metal and is covered with a Aufsteckteil of insulating material, as well as
FIG. 7
a variant of the design of the Aufsteckteils in conjunction with the terminal cover member according to Fig. 6 ,

In den Figuren sind gleiche oder gleichwirkende Bauteile oder Elemente jeweils mit den gleichen Bezugsziffern versehen, auch wenn sie bei verschiedenen Ausführungsvarianten in leicht abgewandelter Form gestaltet sind.In the figures, the same or equivalent components or elements are each provided with the same reference numerals, even if they are designed in different embodiments in a slightly modified form.

Die Figur 1 zeigt schematisch eine Teilansicht eines Installationsschaltgerätes 1 mit einem Isolierstoffgehäuse 8 umfassend eine vordere Frontseite 2, eine hintere Frontseite 3, eine der Frontseite gegenüberliegende Befestigungsseite 4, eine die vordere und die hintere Frontseite verbindende vorderen Schmalseite 5, eine die hintere Frontseite 3 und die Befestigungsseite 4 verbindende hintere Schmalseite 6 und zwei Breitseiten 7, von denen nur eine in der Figur 1 sichtbar ist.The FIG. 1 schematically shows a partial view of a service switching device 1 with a Isolierstoffgehäuse 8 comprising a front front side 2, a rear front side 3, a front side opposite mounting side 4, a front and the rear front connecting front narrow side 5, the rear front side 3 and the mounting side 4th connecting rear narrow side 6 and two broad sides 7, of which only one in the FIG. 1 is visible.

Das Installationsschaltgerät kann beispielsweise ein Leitungsschutzschalter, ein Fehlerstromschutzschalter oder dergleichen sein. Im Inneren des Isolierstoffgehäuses befinden sich spannungsführende Teile.The service switching device may be, for example, a circuit breaker, a residual current circuit breaker or the like. Inside the insulating material are live parts.

Im Bereich zwischen der hinteren Frontseite 3 und der hinteren Schmalseite 6 ist im Inneren des Gehäuses 8 des Installationsschaltgerätes ein Klemmenaufnahmeraum (hier in Fig. 1 nicht sichtbar) gebildet, in dem eine Anschlussklemme 10 gehalten ist. Die Anschlussklemme ist in Figur 2 im Einzelnen dargestellt.In the area between the rear front side 3 and the rear narrow side 6 is inside the housing 8 of the service switching device, a terminal receiving space (here in Fig. 1 not visible) formed in which a terminal 10 is held. The terminal is in FIG. 2 shown in detail.

Die Anschlussklemme 10 umfasst eine von der hinteren Frontseite 3 durch eine Klemmenöffnung 9 hindurch zugängliche Klemmenschraube 24 sowie einen vorderen Klemmraum 20 und einen hinteren Klemmraum 21, welche von der Frontseite her gesehen hintereinander angeordnet und durch eine vordere 91 und eine hintere Gehäuseöffnung 92 in der hinteren Schmalseite 6 des Gehäuses für den Anschluss eines Anschlussleiters oder einer Sammelschiene beziehungsweise der Anschlussfahne einer Sammelschiene zugänglich sind.The terminal 10 comprises a terminal screw 24 accessible from the rear front 3 through a terminal opening 9 and a front terminal space 20 and a rear terminal space 21 arranged one behind the other viewed from the front and through a front 91 and a rear housing opening 92 in the rear Narrow side 6 of the housing for the connection of a connecting conductor or a busbar or the terminal lug of a busbar are accessible.

Die erste, vordere Gehäuseöffnung 91 besitzt in etwa eine sich in Längsrichtung der hinteren Schmalseite 6 erstreckende Rechteckkontur und dient dem Anschluss von Anschlussdrähten. Die zweite, hintere Gehäuseöffnung 92 ist in einem rinnenförmigen Absatz in der hinteren Schmalseite 6 angebracht und besitzt eine quer liegende Rechteckkontur. Sie ist für das Anklemmen der Anschlussfahne einer Sammelschiene vorgesehen.The first, front housing opening 91 has an approximately in the longitudinal direction of the rear narrow side 6 extending rectangular contour and serves for the connection of connecting wires. The second, rear housing opening 92 is mounted in a channel-shaped shoulder in the rear narrow side 6 and has a transverse rectangular contour. It is intended for clamping the terminal lug of a busbar.

Wie weiter unten noch genauer beschrieben wird, ist die Klemmschraube 24 mit einem Klemmenabdeckteil gekoppelt, welches in Längsverschieberichtung der Klemmschraube von dieser mitgenommen wird und den vorderen Klemmraum 20 berührsicher von außen her abdeckt.As will be described in more detail below, the clamping screw 24 is coupled to a terminal cover, which is entrained in the longitudinal displacement direction of the clamping screw of this and covers the front terminal space 20 touch safe from the outside.

Ein zweiter Schenkel 66 dieses Klemmenabdeckteils ist gemäß Fig. 1 bei geschossenem Gerätegehäuse von außen sichtbar. Er bedeckt teilweise die vordere Gehäuseöffnung 91. Rechts und links von dem zweiten Schenkel 66 des Klemmenabdeckteils bleibt jeweils ein unbedeckter Bereich 93 der vorderen Gehäuseöffnung 91 frei.A second leg 66 of this terminal cover is according to Fig. 1 visible from the outside when the device housing is shot. It partly covers the front housing opening 91. To the right and left of the second leg 66 of the terminal cover part, an uncovered area 93 of the front housing opening 91 remains free.

Der unbedeckte Bereich 93 ist so schmal, dass es nicht möglich ist, durch diesen hindurch mit einem menschlichen Finger oder einem genormten Prüffinger durch die vordere Gehäuseöffnung 91 hindurch ins Innere des Klemmenaufnahmeraumes zu gelangen und dort etwa spannungsführende Teile zu berühren.The uncovered area 93 is so narrow that it is not possible to reach through this with a human finger or a standardized test finger through the front housing opening 91 into the interior of the terminal receiving space and there to touch about live parts.

Selbstverständlich wäre es auch möglich, das Klemmenabdeckteil beziehungsweise den zweiten Schenkel 66 so breit auszuführen, dass die vordere Gehäuseöffnung 91 vollständig bedeckt ist.Of course, it would also be possible to make the terminal cover part or the second leg 66 so wide that the front housing opening 91 is completely covered.

Auch die hintere Gehäuseöffnung 92 ist so schmal, dass ein Durchgreifen mit einem menschlichen oder einem Prüffinger wirksam verhindert ist.The rear housing opening 92 is so narrow that a reaching through with a human or a test finger is effectively prevented.

Somit ist das erfindungsgemäße Schaltgerät insgesamt berührungssicher ausgestaltet.Thus, the switching device according to the invention is configured overall safe to touch.

Die Figur 2 zeigt in einer schematischen Schnittdarstellung eine Ausführungsform einer erfindungsgemäßen Anschlussklemme 10. Diese umfasst einen Klemmkörper 12, welcher zylindrisch oder auch mit kastenförmiger Außenkontur ausgeführt sein kann und einen im Inneren gelegenen Klemmraum für die Aufnahme der anzuklemmenden Anschlussleiter aufweist. Der Klemmraum wird an der der Klemmöffnung 9 gegenüberliegenden Seite durch einen Begrenzungssteg 17 abgeschlossen.The FIG. 2 shows a schematic sectional view of an embodiment of a connecting terminal 10 according to the invention. This comprises a clamping body 12, which may be cylindrical or with box-shaped outer contour and having a clamping space located in the interior for receiving the terminals to be clamped. The terminal space is closed at the opposite side of the clamping opening 9 by a limiting web 17.

In der oberen, also in der der Klemmenöffnung 9 zugewandten Hälfte des Klemmkörpers 12 trägt dieser ein Innengewinde 23, in welches eine ein entsprechendes Außengewinde 25 tragende Klemmenschraube 24 eingeschraubt und in Richtung des Richtungspfeiles 50 eingeschraubt und herausgedreht werden kann.In the upper, ie in the terminal opening 9 facing half of the clamp body 12 of this carries an internal thread 23, in which a corresponding external thread 25 bearing screw terminal screwed 24 and screwed in direction of the arrow 50 and can be unscrewed.

Die Klemmenschraube 24 hat ein Betätigungsende 26 mit einem Schlitz 28 für den Eingriff eines Betätigungswerkzeuges, beispielsweise eines Schraubendrehers, und ein dem Betätigungsende 26 gegenüberliegendes Klemmende 30, mit dem ein Anschlussleiter (hier nicht dargestellt) durch Druck gegen eine Stromschiene 36 festklemmbar ist. Der Schlitz 28 kann dabei alle möglichen bekannten Ausgestaltungen beziehungsweise Profile zum Zusammenwirken mit einer Vielzahl von bekannten Betätigungswerkzeugen haben, beispielsweise ein Kreuzschlitz, ein Pozidrive, ein Torx-Profil, es kann aber auch eine Kombination von verschiedenen Profilen verwendet werden.The terminal screw 24 has an actuating end 26 with a slot 28 for engagement of an actuating tool, such as a screwdriver, and the operating end 26 opposite terminal end 30, with a connection conductor (not shown here) by pressure against a busbar 36 is clamped. The slot 28 may have all possible known configurations or profiles for interaction with a variety of known operating tools, such as a Phillips, a Pozidrive, a Torx profile, but it can also be a combination of different profiles are used.

Die Stromschiene 36 ist bei der hier gezeigten Ausführungsform im Inneren des Klemmraums gehäusefest gelagert. Sie unterteilt den Klemmraum in einen vorderen Klemmraum 20 zwischen der Stromschiene 36 und der Klemmenöffnung 9, sowie einen hinteren Klemmraum 21 zwischen der Stromschiene 36 und dem den Klemmkörper 12 zur Befestigungsseite 4 hin begrenzenden Begrenzungssteg 17.The busbar 36 is mounted fixed to the housing in the interior of the terminal space in the embodiment shown here. It divides the terminal space in a front terminal space 20 between the bus bar 36 and the terminal opening 9, and a rear terminal space 21 between the bus bar 36 and the clamping body 12 to the mounting side 4 limiting boundary web 17th

Der Klemmkörper 12 ist in dem Klemmenaufnahmeraum längsverschieblich parallel zur Schmalseitenwand geführt. Durch das Eindrehen der Klemmschraube wird zunächst das Klemmende der Klemmschraube gegen den in dem vorderen Klemmraum eingeführten Leiter gedrückt und klemmt diesen gegen die Stromschiene. Bei Fortsetzung der Eindrehbewegung der Klemmschraube 24 stützt diese sich gewissermaßen an der Stromschiene 36 ab und der Klemmkörper 12 wird nach oben in Richtung auf die Frontseite hin bewegt, bis schließlich der Begrenzungssteg 17 eine in den hinteren Klemmraum 21 eventuell eingeführte Sammelschiene (hier nicht dargestellt) gegen die Stromschiene 36 drückt.The clamping body 12 is guided in the terminal receiving space longitudinally displaceable parallel to the narrow side wall. By screwing in the clamping screw, the clamping end of the clamping screw is first pressed against the conductor inserted in the front clamping space and clamps it against the busbar. Upon continuation of the insertion movement of the clamping screw 24, this is supported, so to speak, on the busbar 36 and the clamping body 12 is moved upward in the direction of the front, until finally the boundary web 17 in the rear terminal space 21 possibly introduced busbar (not shown here) against the bus bar 36 presses.

Die Stromschiene 36 läuft ins Geräteinnere hin in ein einen Anschlussleiter bildendes Abgangsende 37 aus, an dem weitere Komponenten und Baugruppen des Installationsschaltgerätes angeschlossen sind, beispielsweise Auslöser oder Kontaktstellen.The busbar 36 runs into the interior of the device in a connecting conductor forming a drain end 37, are connected to the other components and modules of the service switching device, such as triggers or contact points.

An ihrem freien Ende ist die Stromschiene 36 U-förmig abgebogen, so dass ein Bogenstück 361 und ein daran anschließender, parallel zur Stromschiene 36 in dem hinteren Klemmraum 21 verlaufender Schenkel 362 entstehen. Wenn nun in den hinteren Klemmraum 21 die Anschlussfahne einer Sammelschiene eingeführt wird, so wird diese von dem Schenkel 362 und dem Begrenzungssteg 17 beidseitig umfasst, und durch das Anziehen der Klemmschraube 24 ist ein guter mechanischer und elektrischer Kontakt sichergestellt. -At its free end, the busbar 36 is bent in a U-shape, so that a curved piece 361 and an adjoining, parallel to the busbar 36 extending in the rear terminal space 21 leg 362 arise. If now the terminal lug of a busbar is inserted into the rear terminal space 21, then this is encompassed on both sides by the leg 362 and the limiting web 17, and by tightening the clamping screw 24 a good mechanical and electrical contact is ensured. -

Die Klemmenschraube 24 ist bei den hier gezeigten Ausführungsformen eine kopflose Bolzenschraube, auch Madenschraube genannt. Diese hat den Vorteil, dass sie vollständig in dem Klemmkörper 12 eingeschraubt werden kann, ohne dass ein Kopf nach außen überstehen würde. Doch selbstverständlich könnte eine erfindungsgemäße Anschlussklemme auch mit einer Kopfschraube ausgeführt sein.The terminal screw 24 is in the embodiments shown here, a headless bolt, also called grub screw. This has the advantage of being complete can be screwed into the clamp body 12, without a head would survive to the outside. But of course, a terminal according to the invention could also be designed with a cap screw.

Wenn die Klemmenschraube 24 mit ihrem Klemmende 30 auf die Stromschiene 36 aufgeschraubt ist, so wie in der Figur 2 dargestellt, also ohne eingeführten Anschlussleiter im vorderen Klemmraum 20, so wäre ohne weitere Maßnahmen durch die vordere Gehäuseöffnung 91 hindurch der Schaft der Klemmenschraube 24 für eine ungewollte Berührung zugänglich. Dies insbesondere auch bei Gerätevarianten, die für den Anschluss von Leitern mit großem Leiterquerschnitt eine Klemmenöffnung mit großem Querschnitt aufweisen.When the terminal screw 24 is screwed with its clamping end 30 on the bus bar 36, as in the FIG. 2 shown, so without inserted terminal conductor in the front terminal space 20, so would be accessible without further action through the front housing opening 91 through the shaft of the terminal screw 24 for an unwanted contact. This is particularly true for device variants that have a terminal opening with a large cross section for the connection of conductors with a large conductor cross-section.

Um diese Gefahrenquelle zu beseitigen, ist an dem Klemmende 30 der Klemmschraube 24 drehbar ein Klemmenabdeckteil 60 angenietet. Figur 3 zeigt in vergrößerter Darstellung das Klemmende der Klemmschraube 24 mit dem drehbar daran angenieteten Klemmenabdeckteil 60.To eliminate this source of danger, a terminal cover 60 is rotatably riveted to the clamping end 30 of the clamping screw 24. FIG. 3 shows in enlarged scale the clamping end of the clamping screw 24 with the rotatably riveted thereto terminal cover 60th

Das Klemmenabdeckteil 60 hat in etwa eine L-Form und ist mit seinem ersten, dem kurzen Schenkel 62 mit einem an dem Klemmende 30 der Klemmschraube vorstehenden Nietzapfen 31 drehbar vernietet. Die drehbare Vernietung ist im Prinzip bekannt und kann auf verschiedene Arten erfolgen.The terminal cover 60 has approximately an L-shape and is rotatably riveted with its first, the short leg 62 with a rivet 31 projecting at the clamping end 30 of the clamping screw. The rotatable riveting is known in principle and can be done in various ways.

In der hier vorliegenden Ausführungsform trägt der erste Schenkel eine Durchbrechung 34, durch die der Nietzapfen 31 hindurchgreift, und im Bereich der Durchbrechung 34 ist eine Einsenkung 35 vorgesehen. Die Einsenkung 35 ist so dimensioniert, dass sie die beim Vernieten am freien ende des Nietzapfens 31 entstehende Umbördelung oder Stauchung 33 aufnimmt, so dass diese nicht nach unten in Richtung auf einen anzuklemmenden Anschlussleiter hin über den ersten Schenkel 62 überstehen. Das hat den Vorteil, dass beim Andrücken des Anschlussleiters kein Abrieb an dem Anschlussleiter entsteht, sondern dieser großflächig und eben angedrückt wird.In the present embodiment, the first leg carries an opening 34 through which the rivet pin 31 engages, and in the region of the opening 34 a recess 35 is provided. The depression 35 is dimensioned such that it absorbs the beading or compression 33 produced during riveting at the free end of the rivet stud 31, so that they do not protrude downwards in the direction of a connecting lead to be clamped over the first limb 62. This has the advantage that when pressing the connecting conductor no abrasion on the connecting conductor is formed, but this is pressed over a large area and just.

Das Vernieten kann dabei beispielsweise weggesteuert erfolgen, so dass der Nietwulst 33 im Kontaktbereich mit dem ersten Schenkel 62 einen gewissen Spielraum lässt und sich somit die Klemmschraube 24 relativ zu dem Klemmenabdeckteil 60 drehen kann.The riveting can be carried out, for example, path-controlled, so that the Nietwulst 33 leaves a certain margin in the contact region with the first leg 62 and thus the clamping screw 24 can rotate relative to the terminal cover 60.

Das Klemmenabdeckteil 60 wird aufgrund der drehbaren Nietverbindung in der Bewegungsrichtung 50 der Klemmenschraube 24 von dieser beim Ein - und Ausdrehen jeweils mitgenommen.Due to the rotatable rivet connection in the direction of movement 50 of the terminal screw 24, the terminal cover part 60 is entrained by the terminal screw 24 when it is screwed in and out.

Etwa senkrecht zu dem ersten Schenkel 62 des Klemmenabdeckteils 60 verläuft ein plattenförmiger zweiter Schenkel 66. Der plattenförmige Schenkel 66 deckt denjenigen Teil des vorderen Klemmraums 20, der oberhalb des Klemmendes 30 der Klemmenschraube 24 liegt, von der Seite der vorderen Gehäuseöffnung 91 her berührungssicher ab.Approximately perpendicular to the first leg 62 of the terminal cover 60 extends a plate-shaped second leg 66. The plate-shaped leg 66 covers that part of the front terminal space 20, which is above the terminal end 30 of the terminal screw 24, from the side of the front housing opening 91 forth safe from contact.

In dem Klemmenaufnahmeraum ist die erfindungsgemäße Anschlussklemme 10 mit dem Klemmenabdeckteil 60 so angebracht, das der plattenförmige zweite Schenkel 66 des Klemmenabdeckteils 60 an der Innenseite der Gehäusewand im Bereich der vorderen Gehäuseöffnung 91 parallel zum Verlauf der hinteren Schmalseite 6 geführt ist. Dadurch ist eine Beschädigung des Klemmenabdeckteils durch unsachgemäße Behandlung des Installationsschaltgerätes vermieden.In the terminal receiving space, the terminal 10 of the invention with the terminal cover 60 is mounted so that the plate-shaped second leg 66 of the terminal 60 is guided on the inside of the housing wall in the region of the front housing opening 91 parallel to the course of the rear narrow side 6. As a result, damage to the terminal cover is avoided by improper handling of the installation switching device.

Das Klemmenabdeckteil 60 besteht aus einem Isolierwerkstoff, beispielsweise aus Kunststoff. Beim Andrücken des Klemmenabdeckteils 60 auf einen Anschlussleiter, der hier nicht dargestellt ist, entsteht der elektrische Kontakt zwischen dem Anschlussleiter und der Klemmschraube an dem Nietwulst 33. Daneben kann der Anschlussleiter auch teilweise noch mit dem Kunststoff des ersten Schenkels 62 in Berührung kommen.The terminal cover 60 is made of an insulating material, such as plastic. When the terminal cover part 60 is pressed onto a connection conductor, which is not shown here, the electrical contact between the connection conductor and the clamping screw is produced at the rivet bead 33. In addition, the connection conductor may also partly come into contact with the plastic of the first leg 62.

In der Figur 5 ist eine alternative Ausgestaltungsart für eine drehbare Vernietung des Kunststoff-Klemmenabdeckteiles 60 mit der Klemmschraube 24 dargestellt. Diese Variante wird eingesetzt, wenn eine Berührung des Anschlussleiters mit dem ersten Schenkel 62 des Klemmenabdeckteils unerwünscht ist, wenn etwa ein Andrücken des Kunststoffschenkels 62 auf den Anschlussleiter unterbleiben soll. Auch hier ist der Nietstift 31 durch eine Durchbrechung 34 in dem ersten Schenkel 62 des Klemmenabdeckteils 60 geführt. An der dem Klemmende 30 abgewandten Seite des ersten Schenkels 62 des Klemmenabdeckteils 60 ist eine metallene Druckplatte 32 angebracht, so dass das Klemmenabdeckteil mittels der Druckplatte 32 mit dem Klemmende 30 der Klemmschraube 24 vernietet ist. Dadurch ist ein großflächiger Metallkontakt zwischen der Klemmschraube und einem festgeklemmten Anschlußleiter sichergestellt.In the FIG. 5 an alternative embodiment for a rotatable riveting of the plastic terminal cover 60 is shown with the clamping screw 24. This variant is used when a contact of the connecting conductor with the first leg 62 of the terminal cover is undesirable, if, for example, a pressing of the plastic leg 62 is to be omitted on the connection conductor. Again, the rivet pin 31 is guided through an opening 34 in the first leg 62 of the terminal cover 60. On the side facing away from the clamping end 30 of the first leg 62 of the terminal cover 60, a metal pressure plate 32 is mounted, so that the terminal cover is riveted by means of the pressure plate 32 with the clamping end 30 of the clamping screw 24. As a result, a large-area metal contact between the clamping screw and a clamped connection conductor is ensured.

Die Ausführung des drehbaren Nietes an zwischen dem Nietzapfen 31 und der druckplatte 32 erfolgt analog zu dem oben beschriebenen Vorgehen. Die Einsenkung zur bündigen Aufnahme des Nietwulstes 33 ist hier an der Druckplatte 32 eingebracht.The execution of the rotatable rivet on between the rivet 31 and the pressure plate 32 is analogous to the procedure described above. The recess for flush receiving the Nietwulstes 33 is introduced here on the pressure plate 32.

Eine weitere Ausführungsform zeigt die Figur 4. Dort ist das Klemmenabdeckteil 60 als Blechwinkel ausgeführt. Sein erster Schenkel ist mit der Klemmschraube an deren Klemmende drehbar vernietet. Die drehbare Vernietung des ersten Schenkels 62 des Klemmenabdeckteils 60 mit dem Nietzapfen erfolgt dabei in analoger weise wie oben unter Figur 3 beschrieben.Another embodiment shows the FIG. 4 , There, the terminal cover 60 is designed as a sheet metal angle. Its first leg is rotatably riveted with the clamping screw at the terminal end. The rotatable riveting of the first leg 62 of the terminal cover 60 with the rivet pin takes place in an analogous manner as above FIG. 3 described.

Der Blechwinkel ist an der Seite, die in eingebautem Zustand von außen berührbar ist, mit einem Isolierstoff bedecktt und trägt somit an dieser Seite eine Isolierschicht 95 . Es kann sich dabei beispielsweise um eine aufgespritzte Kunststoffschicht handeln. Das Klemmenabdeckteil wird dadurch sehr stabil und preisgünstig herstellbar. Man sieht in Fig. 4 auch, dass der zweite Schenkel 66 des Klemmenabdeckteils mit der aufgebrachten Isolierschicht 95 schmaler ist als der erste Schenkel 62.The sheet-metal angle is covered on the side, which can be touched from the outside in the installed state, with an insulating material and thus carries on this side an insulating layer 95th It may be, for example, a sprayed-on plastic layer. The terminal cover is characterized very stable and inexpensive to produce. You can see in Fig. 4 also that the second leg 66 of the terminal cover part with the applied insulating layer 95 is narrower than the first leg 62.

Es könnte selbstverständlich auch der zweite Schenkel 66 des Klemmenabdeckteils beidseitig oder allseitig mit Kunststoff umspritzt sein.It could of course be encapsulated on both sides or on all sides with plastic, the second leg 66 of the terminal cover.

Es werde nun die Figur 6 betrachtet. Dort ist eine weitere Möglichkeit gezeigt, um den zweiten Schenkel eines metallenen Klemmenabdeckteils mit wenig Aufwand berührungssicher zu gestalten. Dazu wird über den zweiten Schenkel 66 ein U-förmiges Aufsteckteil 96 geschoben. Dadurch ist der zweite Schenkel 66 des Klemmenabdeckteils 60 wie in einer Scheide gehalten und zumindest an seinen Breitseiten von Isolierstoff bedeckt.It will now be the FIG. 6 considered. There is shown another way to make the second leg of a metal terminal cover with little effort touch-safe. For this purpose, a U-shaped plug-on part 96 is pushed over the second leg 66. As a result, the second leg 66 of the terminal cover part 60 is held in a sheath and covered at least on its broad sides of insulating material.

Das U-förmige Aufsteckteil 96 hat zwei Längsschenkel 964, 965, die an einem Quersteg 963 angesetzt sind. Die Längsschenkel 964 sind so dimensioniert, dass sie in Einbaulage der Klemme den von außen durch die vordere Gehäuseöffnung 91 hindurch berührbaren Teil der Breitseite des zweiten Schenkels 66 des Klemmenabdeckteils 60 vollständig bedecken. Von außen betrachtet ergibt sich damit bei einem Installationsschaltgerät mit einer Klemme mit aufgestecktem Aufsteckteil ein Bild, das dem der Fig. 1 entspricht.The U-shaped plug-on part 96 has two longitudinal legs 964, 965, which are attached to a transverse web 963. The longitudinal legs 964 are dimensioned such that in the installation position of the clamp they completely cover the part of the broad side of the second leg 66 of the terminal cover part 60 that can be touched from outside through the front housing opening 91. Viewed from the outside, this results in an installation switching device with a clamp with plugged on Aufsteckteil an image that the Fig. 1 equivalent.

Das Aufsteckteil 96 kann so gestaltet sein, dass es den zweiten Schenkel 66 des Klemmenabdeckteils 60 auch an dessen Schmalseiten bedeckt. Es kann auch so gestaltet sein, dass die Schmalseiten nicht bedeckt sind, denn diese sind der Berührung von außen durch die vordere Gehäuseöffnung 91 hindurch ohnehin nicht oder nur sehr schwer zugänglich.The plug-on part 96 may be designed such that it covers the second leg 66 of the terminal cover part 60 also on its narrow sides. It can also be designed so that the narrow sides are not covered, because these are the contact from the outside through the front housing opening 91 through anyway not or very difficult to access.

Der in aufgestecktem Zustand nach innen auf den Klemmkörper hin weisende Schenkel 965 des Aufsteckteils kann genauso lang ausgeführt sein, wie der die berührbare Breitseite des zweiten Schenkels bedeckende Schenkel 964. Er kann aber auch kürzer sein, und im Extremfall zu einer Art Haltekralle verkürzt sein. Seine Hauptfunktion ist die des Fixierens des Aufsteckteils.The leg 965 of the plug-on part facing inwardly in the plugged-on state can be made just as long as the leg 964 covering the reachable broad side of the second leg. However, it can also be shorter, and shortened to a kind of holding claw in the extreme case. Its main function is that of fixing the plug-on part.

Die Fixierung des Aufsteckteils 96 auf dem zweiten Schenkel 66 kann beispielsweise in Art einer Presspassung erfolgen.The fixation of the Aufsteckteils 96 on the second leg 66 can be done for example in the form of a press fit.

Die Fixierung des Aufsteckteils auf dem zweiten Schenkel kann auch, wie in der Figur 7 gezeigt, durch Aufklipsen erfolgen. Das Aufsteckteil 961 trägt dabei an der Innenseite der beiden Schenkel 964, 965 jeweils nach innen ragende Noppen oder ähnlich wirkende andersartig gestaltete Rastmittel 962. Der zweite Schenkel 661 des Klemmenabdeckteils trägt Vertiefungen oder Durchgangsbohrungen 662 an Stellen, die bei aufgestecktem Aufsteckteil mit den Noppen 962 oder den funktionsgleich wirkenden andersartig gestalteten Rastmitteln korrespondieren.The fixation of the Aufsteckteils on the second leg can also, as in the FIG. 7 shown, done by clipping on. The Aufsteckteil 961 carries on the inside of the two legs 964, 965 each inwardly projecting studs or similarly acting differently shaped locking means 962. The second leg 661 of the terminal cover carries depressions or through holes 662 at points in the plugged-on with the nubs 962 or correspond to the functionally identical acting differently shaped locking means.

Beim Aufstecken des Aufsteckteils 961, angedeutet durch den Richtungspfeil auf der linken Seite der Figur 7, verrastet dieses dann in den Vertiefungen oder Durchgangsbohrungen 662. Der aufgerastete Zustand ist auf der rechten Seite der Figur 7 dargestellt. Damit ist ein Verrutschen oder Verschieben des auf dem zweiten Schenkel 661 aufgesteckten Aufsteckteils 961 verhindert, auch wenn das Aufsteckteil an den Schmalseiten offen ist.When attaching the Aufsteckteils 961, indicated by the directional arrow on the left side of the FIG. 7 , then locks it in the recesses or through holes 662. The latched state is on the right side of the FIG. 7 shown. This slipping or shifting of the plugged on the second leg 661 Aufsteckteils 961 is prevented, even if the Aufsteckteil is open on the narrow sides.

Eine weitere, hier nicht figürlich dargestellte Ausführungsform besteht darin, dass der zweite Schenkel 66 des Klemmenabdeckteils mit einen isolierenden Schrumpfschlauch überzogen ist, der dann durch in bekannter Weise, etwa durch Erwärmen, durchgeführtes Aufschrumpfen unverlierbar auf mit dem Klemmenabdeckteil befestigt ist.Another, not figuratively shown here embodiment is that the second leg 66 of the terminal cover is coated with an insulating shrink tube, which is then secured by captive carried out in a known manner, such as by heating, with the terminal cover.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
InstallationsschaltgerätService switching device
22
Vordere FrontseiteFront front
33
Hintere FrontseiteRear front
44
Befestigungsseitemounting side
55
Vordere SchmalseiteFront narrow side
66
Hintere SchmalseiteRear narrow side
77
Breitseitebroadside
88th
Gehäusecasing
99
Klemmenöffnungterminal opening
1010
Anschlussklemmeterminal
1212
Klemmkörperclamping bodies
1717
Begrenzungssteglimiting web
2020
Vorderer KlemmraumFront terminal compartment
2121
Hinterer KlemmraumRear terminal room
2323
Innengewindeinner thread
2424
Klemmenschraubeclamping screw
2525
Außengewindeexternal thread
2626
Betätigungsende der KlemmenschraubeOperating end of the terminal screw
2828
Betätigungsschlitzactuating slot
3030
Klemmende der KlemmenschraubeClamping end of the terminal screw
3131
Nietwulstrivet bulge
3232
Druckplatteprinting plate
3333
NietstauchungNietstauchung
3434
Durchbrechungperforation
3535
Einsenkungdepression
3636
Stromschieneconductor rail
361361
Bogenstückelbow
362362
Schenkel der StromschieneLegs of the busbar
3737
Abgangsende der StromschieneOutgoing end of the busbar
5050
Bewegungsrichtung der KlemmschraubeDirection of movement of the clamping screw
6060
Klemmenabdeckteilterminal cover
6262
Erster Schenkel des KlemmenabdeckteilsFirst leg of the terminal cover
621621
Erster Schenkel des KlemmenabdeckteilsFirst leg of the terminal cover
6666
zweiter Schenkelsecond leg
661661
Zweiter SchenkelSecond thigh
662662
Ausnehmungrecess
9191
Vordere GehäuseöffnungFront housing opening
9292
Hintere GehäuseöffnungRear case opening
9393
Unbedeckter BereichUncovered area
9595
Isolierschichtinsulating
9696
AufsteckteilAn attachment
961961
AufsteckteilAn attachment
962962
Noppenartige AuswölbungNubby bulge
963963
Stegweb
964964
Schenkelleg
965965
Schenkelleg

Claims (15)

  1. Service switching device (1) having a housing (8), comprising a front face (3), a mounting face and a narrow face (6) between them, and having a connecting terminal (10) which is held in a terminal accommodation area, which is located close to the narrow face (6), of the housing (8), comprising a terminal screw (24), which is accessible from the front face (3) and has an operating end (26) and a clamping end (30) opposite it, furthermore comprising a busbar (36) and a terminal body (12) having at least two terminal areas (20, 21), which are accessible via a first and a second housing opening (91, 92) from the wall of the narrow face (6) which is adjacent to the front face (3), are located one behind the other with respect to the front face (3) and are separated from one another by a busbar (36), for connection of a busbar and/or of a connecting conductor, in which case a first terminal area (20), which is located between the busbar and the front face, can be covered by a terminal cover part (60), which is coupled to the clamping end (30) of the terminal screw (24), can be driven thereby in the movement direction (50) of the terminal screw (24) and is of such a size that it covers the first terminal area (20) even when a terminal screw (24) is screwed onto the busbar (36), characterized in that the terminal cover part (60) is riveted to the terminal screw (24) such that it can rotate.
  2. Service switching device (1) according to Claim 1, characterized in that the terminal cover part (60) is L-shaped, with a first limb (62) being riveted to the clamping end of the terminal screw (24) such that it can rotate, and with a second limb (66), which points in the direction of the front face (3) from the first limb (62), covering at least the first terminal area (20) in a touch-proof manner, and in that the second limb (66) of the terminal cover part (60) is narrower than the housing opening associated with the terminal area which is covered by the terminal cover part, with that part of the housing opening which is left free of the terminal cover part being so small that it is not possible to touch live device parts through it.
  3. Service switching device according to Claim 1 or 2, characterized in that the terminal cover part is composed of plastic and is riveted to a metallic rivet plate on a rivet pin, which projects at the clamping end (30) of the terminal screw (24), such that it can rotate.
  4. Service switching device according to Claim 2, characterized in that the terminal cover part is composed of metal, with at least the second limb (66) being covered with an insulating material at least on the face which points outward and can be touched.
  5. Service switching device according to Claim 4, characterized in that a plastic part which sheaths the second limb (66) is plugged or clipped onto the second limb (66).
  6. Service switching device according to Claim 4, characterized in that an insulating shrink sleeve is shrunk onto the second limb (66).
  7. Service switching device according to Claim 4, characterized in that a plastic layer is sprayed onto the second limb (66), at least on the face which points outward and can be touched, or the second limb is insert-molded with plastic.
  8. Service switching device (1) according to one of the preceding claims, characterized in that the terminal screw (24) is a threaded bolt without a head.
  9. Connecting terminal (10) for installation in the terminal accommodation area of a service switching device (1) having a housing (8), having a terminal screw (24) which has an operating end (26) and a clamping end (30) opposite it, having a busbar (36) and a terminal body (12) in which two terminal areas (20, 21), which are located one behind the other with respect to the movement direction (50) of the terminal screw (24) and are separated from one another by a busbar (36), are formed for connection of a busbar and/or of a connecting conductor, in which case a first terminal area (20), which is located between the busbar (36) and the clamping end (30) of the terminal screw (24), can be covered by a terminal cover part (60), which is coupled to the clamping end (30) of the terminal screw (24), can be driven thereby in the movement direction (50) of the terminal screw (24) and is of such a size that it covers the first terminal area (20) even while the terminal screw (24) is screwed onto the busbar (36), characterized in that the terminal cover part (60) is riveted to the terminal screw (24) such that it can rotate.
  10. Connecting terminal (10) according to Claim 9, characterized in that the terminal cover part (60) is L-shaped, with a first limb (62) being riveted to the clamping end of the terminal screw (24) such that it can rotate, and with a second limb (66), which, in the installed position, points in the direction of the device front face (3) from the first limb (62), covers at least the first terminal area (20) in a touch-proof manner, and with the second limb (66) of the terminal cover part (60) being narrower than the housing opening associated with the terminal area which is covered by the terminal cover part in the installed position, with that part of the housing opening which is left free of the terminal cover part being so small that it is not possible to touch live device parts through it.
  11. Connecting terminal (10) according to Claim 9, characterized in that the terminal cover part is composed of plastic and is riveted to a metallic rivet plate on a rivet pin, which projects at the clamping end (30) of the terminal screw (24), such that it can rotate.
  12. Connecting terminal (10) according to Claim 11, characterized in that the terminal cover part is composed of metal, with at least the second limb (66) being covered with an insulated material at least on the face (95) which points outward and can be touched in the installed position.
  13. Connecting terminal (10) according to Claim 12, characterized in that a plastic part which sheaths the second limb (66) is plugged or clipped onto the second limb (66).
  14. Connecting terminal (10) according to Claim 12, characterized in that an insulating shrink sleeve is shrunk onto the second limb (66).
  15. Connecting terminal (10) according to Claim 12, characterized in that a plastic layer is sprayed onto the second limb (66), at least on the face which points outward and can be touched, or the second limb is insert-molded with plastic.
EP07819358A 2006-10-28 2007-10-26 Service switching device and connecting terminal for a service switching device Active EP2084783B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006050932 2006-10-28
DE102007041650A DE102007041650A1 (en) 2006-10-28 2007-09-03 Installation switching device and connection terminal for an installation switching device
PCT/EP2007/009313 WO2008052710A1 (en) 2006-10-28 2007-10-26 Service switching device and connecting terminal for a service switching device

Publications (2)

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EP2084783A1 EP2084783A1 (en) 2009-08-05
EP2084783B1 true EP2084783B1 (en) 2011-05-04

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EP07019449A Active EP1916740B1 (en) 2006-10-28 2007-10-04 Installation switching device and connecting terminal for an installation switching device
EP07819358A Active EP2084783B1 (en) 2006-10-28 2007-10-26 Service switching device and connecting terminal for a service switching device

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EP (2) EP1916740B1 (en)
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DE (3) DE102007041650A1 (en)
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DE102007041650A1 (en) 2006-10-28 2008-04-30 Abb Ag Installation switching device and connection terminal for an installation switching device
DE102007039709A1 (en) * 2007-08-22 2009-02-26 Abb Ag Installation switching device with a terminal arrangement
DE102008050929A1 (en) * 2008-10-10 2010-04-15 Abb Ag Installation switching device with a clamping screw
DE102009024867B4 (en) * 2009-06-09 2013-03-28 Abb Ag Installation switching device with terminal cover
ATE545175T1 (en) * 2009-10-26 2012-02-15 Schneider Electric Ind Sas ARRANGEMENT FOR MULTIPLE CONNECTIONS IN AN ELECTRICAL DEVICE
CN101834365B (en) * 2010-03-12 2012-07-04 镇江贝德科技有限公司 Crimping terminal of collector belt
CN102684118A (en) * 2012-05-24 2012-09-19 上海友邦电气(集团)股份有限公司 Small bus wiring frame
DE102013002009A1 (en) * 2013-02-06 2014-08-07 Abb Ag Installation switching device with connection terminal and terminal cover part
DE202015007377U1 (en) 2015-10-26 2015-11-13 Abb Ag Service switching device
DE102016111711A1 (en) * 2016-06-27 2017-12-28 Abb Schweiz Ag Installation switching device with a housing and with a screw terminal
US10854865B2 (en) * 2018-12-06 2020-12-01 Ford Global Technologies, Llc Electrified vehicle busbar secured using a deformed area of an attachment structure

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FR2740265B1 (en) * 1995-10-18 1997-11-14 Schneider Electric Sa BLOCK FOR CONNECTING ELECTRICAL CONDUCTORS TO AN ELECTRICAL APPARATUS
DE19621194A1 (en) * 1996-05-25 1997-11-27 Abb Patent Gmbh Electrical installation device and connection terminal for the installation device
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DE10018351C2 (en) * 2000-04-13 2002-07-04 Siemens Ag clamp
DE102007041650A1 (en) 2006-10-28 2008-04-30 Abb Ag Installation switching device and connection terminal for an installation switching device

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CA2608238A1 (en) 2008-04-28
DE502007002326D1 (en) 2010-01-28
EP1916740B1 (en) 2009-12-16
ATE508496T1 (en) 2011-05-15
EP1916740A1 (en) 2008-04-30
US20080099317A1 (en) 2008-05-01
DE102007041650A1 (en) 2008-04-30
PT1916740E (en) 2010-03-11
WO2008052710A1 (en) 2008-05-08
EP2084783A1 (en) 2009-08-05
US20100068948A1 (en) 2010-03-18
CA2666558A1 (en) 2008-05-08
CA2666558C (en) 2014-05-13
ATE452439T1 (en) 2010-01-15
DE502007007143D1 (en) 2011-06-16

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