EP2437353A1 - Appareil de commutation d'installation doté d'un dispositif de connexion enfichable - Google Patents

Appareil de commutation d'installation doté d'un dispositif de connexion enfichable Download PDF

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Publication number
EP2437353A1
EP2437353A1 EP11007390A EP11007390A EP2437353A1 EP 2437353 A1 EP2437353 A1 EP 2437353A1 EP 11007390 A EP11007390 A EP 11007390A EP 11007390 A EP11007390 A EP 11007390A EP 2437353 A1 EP2437353 A1 EP 2437353A1
Authority
EP
European Patent Office
Prior art keywords
clamping
leg
conductor
terminal
switching device
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.)
Withdrawn
Application number
EP11007390A
Other languages
German (de)
English (en)
Inventor
Klaus-Peter Eppe
Albert Stieger
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 EP2437353A1 publication Critical patent/EP2437353A1/fr
Withdrawn legal-status Critical Current

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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
    • H01R4/48—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

Definitions

  • the invention relates to an installation switching device, such as a circuit breaker, a residual current circuit breaker or a motor protection switch, service switching device having a plug-in device arranged in a housing, wherein the plug-in clamping device has at least one terminal connection frame and a clamping spring element with a clamping leg, and wherein a terminal connection frame is formed by a first A leg, which is conductively connected via a connecting leg with a Ableitschenkel, wherein between the three legs, a clamping connection space is provided, and wherein between the first leg and the Ableitschenkel having a clamping portion, a connecting web extending, which has a passage for receiving a free End of a connecting conductor leaves free, and wherein on the connecting web, the clamping spring element is arranged so that by the clamping leg on the received in the passage free end of Ansch Lussleiter a clamping force for conductive clamping connection of the end can be provided, according to the preamble of claim 1.
  • Installation switching devices such as circuit breakers, residual current circuit breakers or motor protection switches are known from the prior art: Such devices are approximately in the writings DE 10 2006 047 254 B3 . DE 10 2007 043 801 A1 and DE 10 2007 044 069 A1 disclosed.
  • a generic service switching device comprises within its housing at least one contact point with at least one fixed and one movable contact piece, via which opens a current path from an input to an output terminal and can be closed.
  • the contact point is generally operated by a switching mechanism with Verklinkungsstelle.
  • a generic service switching device may further include tripping devices, such as a thermal release or a magnetic quick release, which act on the contact point or the rear derailleur when a short circuit or fault current occurs in the current path, so that the contact point is opened.
  • screw-type terminal connections are used in addition to screw terminals in generic service switching devices.
  • Clamping elements can be plug-in terminals or spring-loaded terminals. In principle, these can greatly simplify the connection of connection conductors, but today known installation switching devices with screwless terminal connections are still subject to use restrictions.
  • Screwless terminal connections are designed with a terminal connection frame in such a way that tool-free insertion and removal of connecting leads is possible. This is accomplished by having the plug-in terminals located in the device housing of insulating material within a frame having a spring element which presses against a conductor inserted through a housing opening, the conductor coming to rest on a conductor support connected to the current path of the device , An overcurrent or short-circuit current should not be dissipated via the spring element, which usually consists of spring steel and therefore has a low electrical conductivity, but should always flow over the terminal connection frame or over the conductor support, which is therefore part of or connected to the frame is.
  • the frame therefore forms, in cooperation with the spring element, the contacting and holding device the inserted portion of the conductor.
  • An embodiment of a plug-in terminal installation switchgear comprises at least one terminal connection frame in a housing, and a spring spring clamping element which therefore has a low electrical conductivity.
  • the clamping spring element has at least one clamping leg.
  • the terminal connection frame is in principle formed by three legs: a first leg is conductively connected via a connecting leg with a Ableitschenkel having a clamping portion, that between the three legs, a terminal connection space is formed. Between the first leg and the Ableitschenkel also extends a connecting web for the clamping spring element, which is designed so that it leaves a passage free, which may also be formed like a window in a flat connecting web. Through the passage, the free, stripped end for clamping determination of the intended connection conductor is feasible. It is now usually clamped in the passage by means of the arranged on the connecting web clamping spring element, since the clamping leg is oriented so that its spring or clamping force presses the connection conductor against the conductor support or clamping edge.
  • the contact surface can secure the conductive clamping connection of the end against the clamping portion.
  • the support element is made of a material with a good conductivity, which should be anyhow better than the conductivity of the clamping spring, and it is connected to the frame.
  • a stop and thereby a fixing aid for the conductor element is formed by the support element, but it is additionally created a secure second contact point in addition to the clamping surface forming the conductor support.
  • An embodiment of the support element may provide that this extends as an elongated element directly from the upper edge of the connecting leg in the terminal space; it can be realized by a web shape.
  • the configuration with the oblique web is particularly advantageous because the slope forms a stop for conductors of different diameters, so that the Steckklemmvorraum can be used for different conductor thicknesses versatile.
  • the web made according to this embodiment may, in a preferred embodiment, extend straight upwards from the connecting leg as a truncated element; it is then in each case a right angle between the contact surface of the web and the connecting leg, and between the web side, which faces away from the contact surface and clamped the connecting leg.
  • the web can be soldered in the event that the clamping frame material is made of metal. If the clamping frame is designed as a stamped and bent part, the web can be punched out in the manufacture of the clamping frame and bent upright. The production is then particularly simple.
  • such a straight upwardly extending web may also be formed by forming the connecting leg from two or more parallel sections, where, at a suitable position, one of the sections is bent, bent or otherwise shaped vertically upward.
  • the support member may be formed by a portion of the connecting leg of the terminal connection frame, which rises in the terminal connection space in the form of a recess with a rectangular cross-sectional shape.
  • the indentation can extend over the entire width of the terminal connection frame. At least, however, the indentation must be at the position be provided, in which an inserted conductor could strike constructively when lifting from the clamping edge. In turn, the indentation can be produced very favorably in the course of stamping during the production of the terminal connection frame.
  • a still further embodiment provides that the support element is formed on an inner side of the housing itself as a non-conductive elevation, which projects into the terminal space and extends quasi into the frame plane.
  • Fig. 1 shows a partial sectional view of the Klemman gleichrittenraumes 18 of a service switching device with a Steckklemmvorraum according to the prior art.
  • the plug-in terminal device shown there comprises an insulating material housing 3 of the shell type.
  • the housing 3 is composed of two housing half-shells, which are assembled along a circumferential joint line and be joined together in the assembled state, for example by riveting, but also by screwing, gluing, welding, etc.
  • the joint line runs in a plane parallel to the flat or flat side parts of the housing.
  • Such housing generic installation switching devices are usually made of plastic injection molded parts, which lends itself to the aforementioned construction.
  • the invention is not limited to installation switching devices with shell-type housings. Rather, it can also be used in service switching devices with other types of housings, for example in casings of the socket type.
  • Fig. 1 Now shows a side view into the terminal receiving space of a service switching device with a Steckklemmvorraum according to the prior art
  • the housing 3 present - not shown figuratively - consists of two flat side panels, respectively shell halves, which except for a front terminal cover 22 through which the conductor 14 with its free end 15 is inserted into the housing, circumferentially having a joint line.
  • the narrow side of the housing is divided into a rear narrow side 4 further away from the viewer and a front narrow side 5 closer to the observer.
  • the downwardly pointing section of the housing usually has fastening elements and therefore forms the attachment side 6.
  • Fig. 1 the viewer looks in the open housing 3 on an inner side 9 of the flat side or shell part on which the screwless terminal connection frame 10 is arranged, which is connected to a spring element, here a clamping spring 12.
  • the screwless clamping terminal frame 10 has a substantially U-shape with a long leg and a short leg, which are cross-linked by a connecting leg 222. These sections of the terminal connection frame 10 serve as a bus bar, via which the conductor 14 is electrically connected to further components forming the current path inside the housing.
  • the long leg which is closer to the rear of the housing, forms a substantially vertical upstand 224, while at the second short leg, a clamping edge 120 is formed, which has a Porterauflageabêt, which comes to lie facing the conductor 14 and contact said makes electrical connection.
  • a clamping edge 120 is formed, which has a Porterauflageabêt, which comes to lie facing the conductor 14 and contact said makes electrical connection.
  • the discharge section 114 At the rear of the clamping edge 120 and thus directly as part of the short, substantially vertical leg is the discharge section 114.
  • the housing 3 on the narrow side 4, 5 an opening through which the frame 10, within which the terminal connection chamber 18 is located, is accessible to fix the inserted through the opening in the terminal connection space 18 free end 15 of the conductor 14.
  • the attachment of the free end 15 of the conductor 14 to provide the necessary position-fixed terminal connection is formed by the clamping spring 12, which presses the free end 15 of the conductor 14 against the clamping edge 120 of the frame 10.
  • the clamping spring 12 is mounted on the inside of the flat side parts 9 by means of a support 104, 104 'and further attached to a connecting web 112.
  • the connecting web 112 is arranged on the frame 10 directly at the distal end of the short leg, wherein the passage for the conductor 14 is formed by a window-like recess in the connecting web 112. It is conceivable that the connecting web 112 is alternatively also arranged on the upstand 224.
  • the clamping spring 12 has a support leg 212, with which it is fixedly attached to the connecting web 112.
  • the support can be made so that the support leg 212 is bent at its free end and rests with the edge in or on a passage 118 of the connecting web 112.
  • a bend 214 and thereon the clamping leg 216 connects.
  • This clamping leg 216 protrudes so far into the passage for the conductor 14 in the direction of acting as an abutment clamping edge 120, that the conductor 14, the free end 15 is passed, is clamped and positioned. This results in the terminal edge 120 by the conductive contact of the conductor end 15 of the desired low-resistance contact with the current path in the device.
  • the spring pressure or clamping pressure keeps the conductor 14 in position.
  • the opening of the clamping connection space 18 is covered by a terminal cover part 22 which is pivotally connected to the housing 3 and, in the form of a tubular recess 328, provides passage for the conductor 14 into the terminal space 18; the passage 328 also serves as a guide means for the terminal conductor 14 to be connected to the terminal connection frame 10, which, after passing through the tubular recess 328, strikes the clamping leg 216 of the clamping spring 12 and is clamped, as stated above.
  • the passage in the connecting web 112 may need to be opened by pivoting the terminal covering part 22.
  • the terminal cover member 22 carries a nose 30 directed toward the clamping leg 216, which serves as a spring actuating means.
  • the nose 30 may of course be other protruding components or components, in particular, the function of the nose 30 may be formed by a collar-like the outlet opening of the tubular recess 328 circumferential ridge.
  • the opening movement of the terminal cover part 22 can alternatively also be effected by means of a commercial longitudinal slot screwdriver or Phillips screwdriver.
  • connection openings and recesses may be provided for receiving and connecting a plurality of connection conductors.
  • All connected connection conductors can be clamped with a common clamping spring 12 via their clamping legs 216.
  • a clamping spring with a number of connectable conductors corresponding number of clamping legs. Then a single lead could be removed or added without breaking the clamping force on the remaining possibly already inserted and clamped conductor ends would.
  • a plug-in terminal device for the aforementioned use in a housing 3 of a service switching device is proposed according to the invention, in which the in Fig. 1 on the other hand, the object shown is developed further - see Fig. 2 to 5
  • an elongated support element extends from a height of an upper edge of the connecting leg 222 in the direction of the connecting web 112, so that the supporting element is aligned perpendicular to the connecting leg 222.
  • the facing to the free end 15 of the conductor 14 abutment surface 401 of the elongated support member forms a stop for a tip 15 'of the free end 15 of the conductor 14, which when the conductor 14 against the clamping force of the clamping spring member 12 acting force is initiated , which secures conductive terminal connection of the end 15 against the terminal connection frame 10.
  • the securing takes place against the clamping section 120.
  • an embodiment of such a support element may be formed as a web 410 which extends straight up from the upper edge of the connecting leg 222 and thus projects into the terminal space 90 ° offset from the connecting leg 222.
  • This can be realized by forming a web 410 by upwardly forming a portion of the connecting leg 222 into the clamping connection space 18; for example, when two or more, parallel sections 222, 222 ', as in Fig. 2 shown forming the connecting leg 222.
  • a tab when an L-shaped incision in a connecting leg 222 is introduced, a tab can be bent upwards and form the web 410; the non-upwardly bent portion 222 'remains as a connecting land portion. It is quite possible that a U-shaped slot is cut into a connecting leg 222, which is flat due to a certain frame width, and the tab cut free thereby is directed vertically upwards into the terminal connection space 18.
  • the web 410 is made of the same material as the terminal connection frame 10 and thus has good conductivity, there is the advantage that - in addition to the clamping edge 120 - a second electrical contact point through the contact surface 401 of the web 410 on the clamping frame
  • the current path which is provided by the conductor 14 via the clamping edge 120 and the diverting region 114 and then via the connecting leg 222 to the upstand 224, continues via this, without it being guided via the clamping spring 12.
  • Fig. 1 There is indicated by the block arrow acting against the spring force force introduction, which, as shown in the dashed circle, leads to a lifting of the conductor 14, respectively the free end 15 of the conductor 14, of the clamping edge 120 and the conductor instead against the leg 216 of the clamping spring 12 presses. This would result in the problem of overheating of the low-resistance clamping spring 12, associated with the stated risk of fire.
  • the recess 420 is designed with a rectangular cross-sectional profile and a standing perpendicular to the connecting leg 222 contact surface 401 forms the desired stop for the conductor end 15, respectively the tip 15 '.
  • the support element is designed in each case as a conductive part of the terminal connection frame 10, so that the current path can be formed by the supporting elements thus formed, when it comes to the fact that the conductor 15 is lifted from the clamping edge 120.
  • the embodiment shown support member is designed as a non-conductive, elongated elevation 400 belonging to the inside of the flat housing wall. That is, one or both of the shell parts or housing parts is / are designed so that a rectangular projection 400 rises from the shell plane and protrudes into the clamping space 18 at the above-described point. Also in this case is a contact surface 401 of the section 400 at the point where the web 410 is otherwise provided. In the case of the use of injection-molded shell parts, this solution can be easily realized.
  • the shape and the geometry of the thus configured support member is not necessarily rectangular, but the shape is such that a perpendicular standing on the connecting leg 222 stop surface 401 is ready to fix upon application of force from the outside on the conductor 15 whose position and in this respect according to the invention advantageous to prevent it from being lifted off the clamping edge 120.
  • the present invention also encompasses any combinations of preferred embodiments as well as individual design features or developments, provided that they are not mutually exclusive.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP11007390A 2010-09-30 2011-09-10 Appareil de commutation d'installation doté d'un dispositif de connexion enfichable Withdrawn EP2437353A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010047170.4A DE102010047170B4 (de) 2010-09-30 2010-09-30 Installationsschaltgerät mit einer Steckklemmvorrichtung

Publications (1)

Publication Number Publication Date
EP2437353A1 true EP2437353A1 (fr) 2012-04-04

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ID=44582020

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EP11007390A Withdrawn EP2437353A1 (fr) 2010-09-30 2011-09-10 Appareil de commutation d'installation doté d'un dispositif de connexion enfichable

Country Status (3)

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EP (1) EP2437353A1 (fr)
CN (1) CN102543496A (fr)
DE (1) DE102010047170B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106356256A (zh) * 2015-07-16 2017-01-25 上海良信电器股份有限公司 一种喉箍式接线端子

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019104151A1 (de) * 2019-02-19 2020-08-20 Rittal Gmbh & Co. Kg Schaltschrank mit mindestens einer Bürstenleiste für die Leiterdurchführung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828314A1 (fr) * 1996-09-10 1998-03-11 A/S Elektrokontakt Dispositif de contact électrique sans vis
DE102007018443A1 (de) * 2006-04-25 2007-11-29 Wago Verwaltungsgesellschaft Mbh Elektr. Verbinder
DE102006047254B3 (de) 2006-10-06 2008-05-21 Abb Ag Installationsschaltgerät

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3019149C2 (de) * 1980-05-20 1983-05-05 Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg Schraubenlose Anschlußklemme
DE29606347U1 (de) 1996-04-01 1997-10-23 Wieland Electric Gmbh Elektrischer Steckverbinder, insbesondere für Leiterplatten
DE19817927C1 (de) * 1998-04-17 1999-10-28 Wago Verwaltungs Gmbh Steckverbinder als Buchsen- oder Stiftteil und mit einem Federkraftklemmanschluß für elektr. Leiter
DE10103107B4 (de) 2000-12-20 2007-07-12 Hager Electro Gmbh Anschlußklemme für elektrische Leiter
DE102006047255A1 (de) * 2006-10-06 2008-04-10 Abb Patent Gmbh Klemmanschluss und Anschlussklemmenanordnung
DE102008039864B4 (de) * 2008-08-27 2011-01-05 Wago Verwaltungsgesellschaft Mbh Klemmenbauelement
WO2010034430A1 (fr) 2008-09-29 2010-04-01 Abb Ag Appareillage de commutation d'installation présentant une connexion serrée sans vis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0828314A1 (fr) * 1996-09-10 1998-03-11 A/S Elektrokontakt Dispositif de contact électrique sans vis
DE102007018443A1 (de) * 2006-04-25 2007-11-29 Wago Verwaltungsgesellschaft Mbh Elektr. Verbinder
DE102006047254B3 (de) 2006-10-06 2008-05-21 Abb Ag Installationsschaltgerät
DE102007043801A1 (de) 2006-10-06 2009-03-19 Abb Ag Installationsschaltgerät
DE102007044069A1 (de) 2006-10-06 2009-04-09 Abb Ag Installationsschaltgerät mit einem schraubenlosen Klemmanschluss

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106356256A (zh) * 2015-07-16 2017-01-25 上海良信电器股份有限公司 一种喉箍式接线端子

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Publication number Publication date
CN102543496A (zh) 2012-07-04
DE102010047170B4 (de) 2019-10-10
DE102010047170A1 (de) 2012-04-05

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