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EP1916741B1 - Dispositif d' interruption et borne de serrage associée - Google Patents

Dispositif d' interruption et borne de serrage associée Download PDF

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Publication number
EP1916741B1
EP1916741B1 EP07019450A EP07019450A EP1916741B1 EP 1916741 B1 EP1916741 B1 EP 1916741B1 EP 07019450 A EP07019450 A EP 07019450A EP 07019450 A EP07019450 A EP 07019450A EP 1916741 B1 EP1916741 B1 EP 1916741B1
Authority
EP
European Patent Office
Prior art keywords
switching device
clamping
installation switching
terminal
busbar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07019450A
Other languages
German (de)
English (en)
Other versions
EP1916741A1 (fr
Inventor
Ralf Dipl.-Ing. Weber
Klaus-Peter Dipl.-Ing. Eppe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB AG Germany
Original Assignee
ABB AG Germany
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 ABB AG Germany filed Critical ABB AG Germany
Publication of EP1916741A1 publication Critical patent/EP1916741A1/fr
Application granted granted Critical
Publication of EP1916741B1 publication Critical patent/EP1916741B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring

Definitions

  • the invention relates to a service switching device having a housing and located in a 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 clamp body in which a via a first housing opening from the adjacent narrow side wall accessible, on the side facing away from the clamping end is formed by a web of the clamp body limited terminal space, according to the preamble of claim 1.
  • a connection terminal is suitable for screwing individual connection conductors to the service switching device. It is also still suitable to fix strip-shaped phase rails with their terminal lugs electrically conductive to the service switching device.
  • a current path is performed by at least one access and at least one outgoing terminal through the interior of the service switching device, the current path further assemblies, in particular thermal and / or electromagnetic tripping assemblies and at least one, a fixed and a movable contact piece comprehensive contact point passes.
  • the DE 44 36 780 C2 shows an installation switching device with a terminal in which the band-shaped phase rail, possibly with its terminal lug, is screwed into a slot on the narrow side of the service switching device.
  • Another generic service switching device with a generic terminal shows the EP 809 325 B1 , There, the terminal connection space is divided by a bus bar into a first connection space for the wire-shaped connection conductor and a second connection space for the connection lug of the band-shaped phase rail.
  • phase rails in known generic service switching devices are complex, because when installing switchgear, for example in a distribution box, the fitter needs both hands to connect the device with the phase rails. With one hand he holds the phase rail, with the other hand he presses the screwdriver.
  • the EP 1 028 488 A1 shows a connection terminal; comprising a clamping screw with an actuating end and a clamping end opposite thereto, further comprising a clamp body in which a externally accessible, on the side remote from the clamping end by a web of the clamp body limited clamping space is formed, wherein the clamping space by a bus bar in its interior in two part-terminal spaces is divided.
  • the US 1 503 124 shows a comprehensive clamping screw with an actuating end and a clamping end opposite thereto, further comprising a clamp body in which a via a housing opening of a side wall accessible terminal space is formed, which is bounded on the side facing away from the clamping end by a further screw; Located adjacent to the side walls of the clamp body are opposing leaf springs, with each of which a further connection conductor or a connection lug of a busbar can be pressed laterally against the clamping body.
  • the DE 103 29 074 A1 shows a terminal device and a terminal element system for lighting wiring, with the various combinations of screw and plug connections can be realized.
  • the terminal device has for this purpose a housing made of an electrically insulating plastic, which encloses an interior, in which a contact terminal is arranged, which has a first contact point and a second contact point, wherein the second contact point is formed by an extending away from the contact terminal extension.
  • a plug-in sleeve with an insertion opening formed between two legs for receiving a terminal lug of a busbar is attached outside the terminal space to the web of the clamp body.
  • the phase rail can be connected to the terminal by means of a screwless plug connection, which the installer can carry out with one hand.
  • the insertion of the phase rails is not only easier, but it is also faster.
  • the terminal space and the insertion opening are arranged one behind the other as seen from the front side and accessible from the narrow side wall adjacent to the front side.
  • terminal space and the insertion can be arranged so that when installing the service switching device in a distribution box, the busbar in the socket via a screwless clamping technology and the one or more leads in the terminal space via a screw clamp connection can be fastened.
  • An embodiment of the invention provides that in the terminal space a busbar and / or a connection conductor by means of the clamping screw against a busbar can be pressed.
  • the busbar may be a separate component, which rests, for example, flat on the web of the clamp body and connected to the web or even integrally formed on the web.
  • the busbar serves to establish an electrical connection between the terminal of the invention and other modules or components of the service switching device.
  • further conductors can be attached to the busbar, which guide the current path through the service switching device, and thereby contact other components such as the contact point and a thermal or an electromagnetic release.
  • a particularly very advantageous embodiment of the invention provides that in the terminal space, a busbar and / or a connecting conductor by means of the clamping screw directly against the web of the clamp body can be pressed.
  • the busbar can then be integrally formed on the web.
  • the plug-in sleeve has a U-shape which is open in the direction "contacting" and whose legs extend in this direction and perpendicular to the direction of movement of the clamping screw, so that they include the terminal lug of the busbar on both sides.
  • the plug-in sleeve can advantageously be a U-shaped bent band spring, the opening points in the direction of the terminal lug of the busbar.
  • the clamp body has approximately the shape of a rectangular frame, with a first narrow side forming web and adjoining, the two longitudinal sides forming legs, the free end of each leg approximately at right angles the free end of the other leg is bent so that the bent free ends overlap and thereby form the second narrow side of the frame.
  • the second narrow side can advantageously have an opening with a screw thread for receiving and guiding the clamping screw.
  • the clamp body can be produced as a stamped and bent part.
  • the settlement of the terminal body with the legs, the web and optionally with the integrally formed on the web busbar from a sheet metal punched.
  • the legs and optionally the busbar are bent at correspondingly provided bending edges, so that finally the desired shape of the terminal body is formed.
  • FIG. 1 shows a terminal 10 for installation in the terminal receiving space of a service switching device, such as a circuit breaker.
  • a service switching device such as a circuit breaker.
  • the circuit breaker itself is not shown.
  • the terminal 10 comprises a clamp body 12, which has approximately the shape of a rectangular frame. He has an upper narrow side 14 and a lower narrow side 16, which are connected by intermediate longitudinal sides 18,19 therebetween. The upper and lower narrow side 14,16 and the longitudinal sides 18,19 limit the clamping space 20th
  • the upper narrow side 14 has an opening 22 through which a clamping screw 24 projects into the clamping space 20.
  • the clamping screw 24 has an actuating end 26 in the form of a screw head with a slot 28 for engagement of a screwdriver.
  • the terminal screw 24 is connected to a pressure plate 32.
  • the pressure plate 32 facilitates and improves the mechanical and electrical contact between the terminal screw 24 and a terminal lead 34 insertable into the terminal space.
  • a headless grub screw or any other type of screw could be used instead of the cap screw shown.
  • the opening 22 is provided with an internal thread 23 which cooperates with the external thread 25 on the screw shank of the clamping screw 24.
  • the clamping screw 24 can be screwed by means of the thread 23,25 in the direction of the arrow 50 in the terminal space 20 or unscrewed from this.
  • the lower narrow side 16 is formed by a web 17.
  • a bus bar 36 is mounted, in the example shown here, it lies flat against the web 17 and is connected to this form-fitting manner.
  • the busbar 36 leads with its output end 37 into the interior of the switching device, where it is connected to other connecting conductors the electrical connection to functional modules of the service switching device, such as the trigger assemblies or the contact points manufactures.
  • a plug-in sleeve 38 is attached to the web 17 of the clamp body 12. This has approximately a U-shape and comprises two legs 42, 44 connected by a web 40.
  • the insertion opening 46 faces outward in the direction from which the connection conductor 34 or a phase rail 48 or a busbar 48 with its terminal lug in the Terminal to be introduced.
  • the terminal space 20 and the insertion opening 46 of the plug-in sleeve 38 are thus arranged lying one behind the other with respect to the direction of movement 50 of the clamping screw 24 and from a common access level, in the FIG. 1 the plane AA 'parallel to the left longitudinal side 18, forth accessible.
  • the two legs 42,44 of the plug-in sleeve 38 comprise on both sides a plug-in sleeve 38 inserted in the busbar 48th Die Steckmuffe appli der FIG. 1 is for example a U-shaped curved band spring, the opening 46 facing in the direction of the terminal lug of the busbar 48.
  • FIG. 2 a view from the direction of the access level AA '. It can be seen that two legs 52, 54 forming the two longitudinal sides 18, 19 adjoin the web 17 which delimits the clamping space 20 downwards.
  • the free ends, 53,55 of the two legs 52,54 are each bent approximately at right angles to each other and overlap. Due to the overlap of the leg ends. 53,55 the upper narrow side 14 of the clamp body 12 is formed.
  • the clamp body 12 is very simple and inexpensive to produce as a stamped and bent part. Its development in the plane is punched out, and then the longitudinal sides 18,19 by folding up the corresponding legs 52,54, and then the upper narrow side 14 by folding and overlapping the free ends 53,55 of the legs 52,54 formed at right angles.
  • FIG. 3 shows a further embodiment of the invention.
  • the mounted on the web 17 busbar 36 via the web 17 also in the direction of the access level AA 'extended and U-shaped bent around the web 17 around. This results in a direction of the access level AA 'projecting rail bow 35 and a parallel to the web 17 on the other side extending rail leg 39th
  • the plug-in sleeve 38 is attached with its first leg 44 on the busbar 36 opposite side of the web 17.
  • the rail bow 35 and the rail leg 39 of the busbar 36 clamp the first leg 44 of the socket to the web 17 fixed.
  • the web of the plug-in sleeve 38 extends approximately parallel to the access plane AA 'down.
  • the second leg 42 of the plug-in sleeve 38 then extends obliquely to the first leg 44 and carries at its free end a raised edge 43.
  • the insertion opening 46 is formed in the form of a Einstecktulpe.
  • the terminal lug of the bus bar 48 is inserted between the edge formed by the second leg 42 and the upstand 43 and the rail leg 39 of the bus bar 36 in the plug-in sleeve 38. Due to the spring force of the second leg 42 of the plug-in sleeve 38, this pushes the terminal lug of the busbar 48 against the rail leg 39 of the bus bar 36 and thus establishes a secure mechanical and electrical contact.
  • An inventive installation switching device with a terminal 10 according to the invention can be used in a simplified manner in a distribution box, for example, a domestic installation.
  • the devices are first mounted in a row next to each other in the usual way on a top hat rail.
  • the joint connection of adjacent devices by means of a phase rail is then carried out by screwless clamping the terminal lugs of the phase rail in the push-fit sockets 38 of the terminals 10 of the juxtaposed installation switching devices.
  • each individual switching device is then manufactured in the usual manner by a screw connection. Because the phase rail from the front of the service switching device from behind Screw terminal connection for the connecting conductor 34 is not disturbing the phase rail when connecting the connecting conductor via the screw terminal.
  • FIGS. 4 to 6 a third and fourth embodiment of the invention is shown.
  • the difference from the first and second embodiments according to the FIGS. 1 to 3 is that the clamping screw 24 with its pressure plate 32, the connecting conductor 34 presses directly against the lower narrow side 16 of the terminal frame forming web 17. In the direction of the device inside the bus bar 36 is integrally formed on the web 17.
  • the web 17 is extended in the direction of the access level AA 'and U-shaped bent down. It thus arises in the direction of the access level AA 'projecting rail bow 35 and a parallel to the lower narrow side of the clamp body on the other side extending rail leg 39th
  • the plug-in sleeve 38 is attached with its first leg 44 on the lower narrow side of the clamp body opposite side of the web 17, for example, plugged or pushed.
  • the rail bow 35 and the rail leg 39 of the busbar 36 clamp the first leg 44 of the socket to the web 17 fixed.
  • the web 40 of the plug-in sleeve 38 extends approximately parallel to the access plane AA 'down.
  • the second leg 42 of the plug-in sleeve 38 then extends obliquely to the first leg 44 and carries at its free end a raised edge 43.
  • the insertion opening 46 is formed in the form of a Einstecktulpe.
  • the terminal lug of the busbar 48 is inserted between the edge formed by the second leg 42 and the upstand 43 and the rail leg 39 of the web 17 in the socket 38. Due to the spring force of the second leg 42 of the plug-in sleeve 38, this pushes the terminal lug of the busbar 48 against the rail leg 39 and thus establishes a secure mechanical and electrical contact.
  • the clamp body 12 according to the FIGS. 4 to 6 can be easily and inexpensively manufactured as a stamped and bent part, according to the description above regarding the embodiment according to the FIGS. 1 to 3 ,
  • the bus bar 36 is then in the planar development of the clamp body 12, a further leg which is bent in accordance with bending together of the clamp body.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Installation Of Bus-Bars (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Patch Boards (AREA)

Claims (12)

  1. Commutateur d'installation comprenant un boîtier et une borne de raccordement (10) qui se trouve dans un espace d'accueil de borne du boîtier, incluant une vis de serrage (24) accessible depuis le côté avant et munie d'une extrémité d'actionnement (26) et d'une extrémité de serrage (30) à l'opposé de celle-ci, incluant en outre un corps de serrage (12) dans lequel est formé un espace de serrage (20) accessible depuis la paroi latérale étroite voisine par l'intermédiaire d'une première ouverture de boîtier et délimité du côté opposé à l'extrémité de serrage (30) par une traverse (17) du corps de serrage (12), caractérisé en ce qu'un manchon d'enfichage (38) muni d'une ouverture d'enfichage (46) formée entre deux branches (42, 44) est fixé, à l'extérieur de l'espace de serrage (20), à la traverse (17) du corps de serrage (12), pour accueillir une barrette de connexion d'une barre-bus (48) .
  2. Commutateur d'installation selon la revendication 1, caractérisé en ce que l'espace de serrage (20) et l'ouverture d'enfichage (46), vus depuis le côté avant, sont disposés l'un derrière l'autre et sont accessibles depuis la paroi latérale étroite voisine du côté avant.
  3. Commutateur d'installation selon la revendication 2, caractérisé en ce que l'espace de serrage (20) et l'ouverture d'enfichage (46) sont disposés de telle sorte que lors de l'installation du commutateur d'installation dans un coffret de distribution, la barre-bus (48) peut être fixée dans le manchon d'enfichage (38) par le biais d'une technique de serrage sans vis et le ou les conducteurs de raccordement (34) peuvent être fixés dans l'espace de serrage (20) par le biais d'une liaison serrée à vis.
  4. Commutateur d'installation selon l'une des revendications précédentes, caractérisé en ce qu'une barre-bus (48) et/ou un conducteur de raccordement (34) peuvent être poussés dans l'espace de serrage (20) contre la traverse (17) au moyen de la vis de serrage (24).
  5. Commutateur d'installation selon l'une des revendications 1 à 3, caractérisé en ce qu'une barre-bus (48) et/ou un conducteur de raccordement (34) peuvent être poussés dans l'espace de serrage (20) contre une barre-bus (36) au moyen de la vis de serrage (24).
  6. Commutateur d'installation selon la revendication 5, caractérisé en ce que la barre-bus (36) est façonnée d'une seule pièce sur le corps de serrage (12).
  7. Commutateur d'installation selon la revendication 5, caractérisé en ce que la barre-bus repose à plat sur la traverse (17).
  8. Commutateur d'installation selon la revendication 1, caractérisé en ce que l'espace de serrage (20) et l'ouverture d'enfichage (46) sont disposés l'un derrière l'autre par rapport au sens du mouvement (50) de la vis de serrage (24) et sont accessibles depuis un plan d'accès (AA') commun.
  9. Commutateur d'installation selon la revendication 1, caractérisé en ce que le manchon d'enfichage (38) possède la forme d'un U qui est ouvert en direction de la « mise en contact » et dont les branches (42, 44) s'étendent dans cette direction et perpendiculairement au sens du mouvement (50) de la vis de serrage (24), de sorte qu'il enserre la barrette de connexion de la barre-bus (48) par les deux côtés.
  10. Commutateur d'installation selon la revendication 1, le manchon d'enfichage (38) étant un ressort à lame courbé en forme de U dont l'ouverture (46) est orientée en direction de la barrette de connexion de la barre-bus (48).
  11. Commutateur d'installation selon la revendication 1, caractérisé en ce que le corps de serrage (12) possède approximativement la forme d'un cadre rectangulaire, comprenant une traverse (17) qui forme le premier côté étroit (16) et des branches (52, 54) rattachées à celle-ci qui forment les deux côtés longs (18, 19), l'extrémité libre (53, 55) de chaque branche (52, 54) étant recourbée approximativement perpendiculairement en direction de l'extrémité libre (55, 53) de l'autre branche (54, 52) respective, de sorte que les extrémités libres (53, 55) recourbées se chevauchent et forment ainsi le deuxième côté étroit (14) du cadre.
  12. Commutateur d'installation selon la revendication 11, caractérisé en ce que le deuxième côté étroit (14) présente une ouverture (23) avec un filet de vissage (23) pour accueillir et pour guider la vis de serrage (24).
EP07019450A 2006-10-28 2007-10-04 Dispositif d' interruption et borne de serrage associée Not-in-force EP1916741B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006050933 2006-10-28
DE102007041249A DE102007041249A1 (de) 2006-10-28 2007-08-30 Installationsschaltgerät und Anschlussklemme für ein Installationsschaltgerät

Publications (2)

Publication Number Publication Date
EP1916741A1 EP1916741A1 (fr) 2008-04-30
EP1916741B1 true EP1916741B1 (fr) 2012-03-07

Family

ID=38819991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07019450A Not-in-force EP1916741B1 (fr) 2006-10-28 2007-10-04 Dispositif d' interruption et borne de serrage associée

Country Status (5)

Country Link
US (1) US20080102714A1 (fr)
EP (1) EP1916741B1 (fr)
AT (1) ATE548784T1 (fr)
CA (1) CA2608256A1 (fr)
DE (1) DE102007041249A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100133236A1 (en) * 2007-04-19 2010-06-03 Abb Ag Installation switchgear having a device for mounting the same on a bus bar
DE102007039709A1 (de) * 2007-08-22 2009-02-26 Abb Ag Installationsschaltgerät mit einer Anschlussklemmenanordnung
US7798869B1 (en) * 2008-06-10 2010-09-21 Woodard Govenor Company Electrical connector
FR3010838B1 (fr) * 2013-09-17 2015-10-16 Schneider Electric Ind Sas Borne a double systeme de raccordement electrique, en particulier pour un appareil de protection electrique basse tension, et appareil comportant une telle borne
US9819099B2 (en) * 2015-08-13 2017-11-14 Itt Manufacturing Enterprises Llc Multi-part contact having a front contact portion and a rear crimp contact portion joined together at an angle by a threaded connector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503124A (en) 1923-05-23 1924-07-29 John J Hoppes Hydroelectric power plant
GB1503124A (en) * 1976-02-23 1978-03-08 English Electric Co Ltd Electrical terminal connections
DE3412317A1 (de) * 1984-04-03 1985-10-03 C.A. Weidmüller GmbH & Co, 4930 Detmold Leiteranschluss fuer kaschierte leiterplatten
DE3780672D1 (de) * 1986-04-04 1992-09-03 Siemens Ag Rahmenklemme zum anschluss elektrischer leiter.
US4917615A (en) * 1988-11-18 1990-04-17 Franks George J Jr Ground bracket
DE4436780C2 (de) 1994-10-14 2000-08-31 Abb Patent Gmbh Klemmenabdeckung für ein elektrisches Installationsgerät
DE19621194A1 (de) 1996-05-25 1997-11-27 Abb Patent Gmbh Elektrisches Installationsgerät und Anschlußklemme für das Installationsgerät
DE19905443A1 (de) 1999-02-10 2000-08-17 Abb Patent Gmbh Anschlußklemme für ein elektrisches Installationsgerät
DE10329074A1 (de) 2003-06-27 2005-01-20 Vossloh-Schwabe Deutschland Gmbh Anschlussklemmeinrichtung und Klemmenelementesystem zur Leuchtenverdrahtung

Also Published As

Publication number Publication date
ATE548784T1 (de) 2012-03-15
EP1916741A1 (fr) 2008-04-30
US20080102714A1 (en) 2008-05-01
DE102007041249A1 (de) 2008-04-30
CA2608256A1 (fr) 2008-04-28

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