EP1086513B1 - Anschlussklemme - Google Patents

Anschlussklemme Download PDF

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Publication number
EP1086513B1
EP1086513B1 EP99936370A EP99936370A EP1086513B1 EP 1086513 B1 EP1086513 B1 EP 1086513B1 EP 99936370 A EP99936370 A EP 99936370A EP 99936370 A EP99936370 A EP 99936370A EP 1086513 B1 EP1086513 B1 EP 1086513B1
Authority
EP
European Patent Office
Prior art keywords
clamping
contact part
conductor
terminal according
contact
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.)
Expired - Lifetime
Application number
EP99936370A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1086513A1 (de
Inventor
Peter Adlfinger
Klaus Busch
Stephan Faber
Johann Herrmann
Michael Gieselmann
Johann Hofrichter
Norbert SÖRGEL
Rudolf Zimmermann
Rainer Eidloth
Hansjürgen LINDE
Uwe Neumann
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1086513A1 publication Critical patent/EP1086513A1/de
Application granted granted Critical
Publication of EP1086513B1 publication Critical patent/EP1086513B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/42—Clamping area to one side of screw only

Definitions

  • the invention relates to a terminal for contacting a number of non-stripped electrical conductors a clamping part that is movable by a clamping screw is held and on one side of the clamping screw a contact part and on the other side of the clamping screw is supported on the conductor, the clamping part and the contact part a number of cutting elements in the clamping area exhibit.
  • Such a terminal is known from DE-AS 22 29 835. It is used to connect an electrical conductor a device using a clamping screw. To do this, the leader between a clamping part (clamping disc) and a contact part of the Terminal guided and contacted without stripping by using the clamping screw moves the clamping part towards the contact part becomes. Cutting elements provided on the clamping part and on the contact part penetrate the insulation of the conductor up to Contact with the conductor wire. Using the connector thus becomes a while fixing the conductor Current flow from the conductor to the contact part achieved.
  • the known terminal is only one for the contact Conductor provided, with conductors of different cross-section can be used.
  • the clamping part by means of the clamping screw more or less from the contact part lifted. Should several conductors of different cross-section be contacted for each of these leaders to provide a separate connection terminal.
  • GB 2 217 530 A (DE 38 08 794 Al) is a branch terminal known for electrical conductors, in addition to an insulation displacement contact second conductor can be contacted.
  • the second conductors are stripped for contacting, because of that Clamping contact is made with the clamping screw itself.
  • WO 95/14864 A1 Terminal a cutting contact of two conductors too of different diameters.
  • the invention has for its object a terminal of the type mentioned above, by means of at least two conductors in any cross-section pairing in one terminal point with the smallest possible dimension of the connection terminal can be contacted safely.
  • the contact part is preferably in Clamping area transverse to the direction of insertion of the conductor educated.
  • the clamping part is preferably also useful comparatively small inclination educated.
  • the angle of inclination of the clamping part is about 25 °, while the angle of inclination of the contact part is preferred is about 30 °. This is a double or multiple contact possible by putting two or more in parallel juxtaposed and different cross sections having conductors securely contacted and clamped at the same time without one of the conductors closing the Clamping point is cut.
  • the contact part formed from a contact plate is expediently at the same time the switching piece of a switching device, only the connection or clamping area being shaped obliquely. This makes it possible to clamp and contact two non-stripped conductors with a cross section of, for example, 2.5 mm 2 in the same clamping area or bed width, which was previously only possible with stripped conductors. This represents a significant gain in space.
  • Two rows with cutting teeth of different heights are expediently formed from the contact part for contacting - and thus for a current transfer from the conductor to the contact part.
  • the different height of the cutting teeth ensures that both a small cross-section, for example 0.5 mm 2 , and a comparatively large cross-section, for example 2.5 mm 2 , are safely contacted individually or in combination.
  • the contact part on the one facing the clamping area Side of the clamping screw a stop or support leg for the clamping part.
  • This one is a contact part provided contact sheet preferably from this shaped out.
  • the Incisors not continuous across the width of the contact part, but executed interrupted. In the direction of insertion of the or each conductor in front of the cutting element of the contact part is expediently a lead insertion slope from this stamped out.
  • the clamping part is opened by means of the clamping screw the contact part moves down. This will make the previously conductors inserted into the terminal into the cutting teeth pressed, the insulation is cut and an electrical Contact to be made to the contact part. Is to the clamping screw through a through hole provided in the clamping part guided, the diameter of which is selected such that a movement of the clamping part in the direction of insertion of the conductor and thus in the direction of the conductor axis when screwing on and loosening the clamping screw is possible.
  • a preferably on the clamping screw provided ring bead and a corresponding Embossing in the area of the through hole of the clamping part enable a self-lifting of the clamping part when open the connector. This makes it simple and safe Loosening the contact connection possible by using the appropriate Rotation of the clamping screw the clamping part from Contact part moved away upwards.
  • the cutting element is in a particularly expedient embodiment the clamping part by one in the direction of insertion of the conductor extending axis pivotally mounted. It is also Cutting element of the clamping part itself from two cutting edges different Height built up. This is a safe contact of ladders with both small and comparatively large cross-section guaranteed. To do this on the one hand a safe contact and a secure hold to ensure the conductor in the connection terminal as well as on the other hand to safely prevent cutting of one of the conductors, are the cutting edges of the clamping part compared to the Cutting teeth of the contact part are arranged offset.
  • the rotatable Storage of the cutting element of the clamping part enables in addition, a particularly reliable adaptation to the oblique contour of the contact part and the different Diameter of the clamped conductor.
  • One on the the side of the clamping screw facing away from the clamping area and directed towards the contact part of the stop The contact part also prevents each from being cut the pinched conductor.
  • the advantages achieved by the invention consist in particular in the fact that in a screwable terminal with a clamping part and with a contact part through a quasi wedge-shaped clamping area with oblique contact part in this area several conductors of different diameters can be reliably clamped and contacted side by side. This allows double or multiple contacting by means of a single connecting terminal in a simple and space-saving manner. At least two electrical conductors, the conductor cores of which are solid, fine or multi-wire, can be used by means of a clamping screw over a cross-sectional area of at least 0.5 mm 2 to 2.5 mm 2 in a single clamping point with a minimal dimension, regardless of the thickness of the conductor insulation and be contacted without stripping from the insulating material. A cut of one or each conductor when closing the terminal point is reliably prevented.
  • the terminal 1 shown in Figures 1 to 3 includes a fixed contact part 2 in the form of a contact plate and a clamping part 3 movably arranged above it as a clamping or Roof pane and a clamping screw 4.
  • the clamping screw 4 is on the shaft side through a through hole or Through opening 5 passed in the clamping part 3 and on the thread side screwed into a threaded passage 6 of the contact part 2 (FIG 3).
  • the clamping part 3 is L-shaped and is supported by means of its serving as a leg 7 on the one Clamping area 8 facing away from the clamping screw 4 in one Support point 9 on the contact part 2.
  • the clamping area 8 is the clamping part 3 at an angle of inclination ⁇ (FIG 2) trained obliquely.
  • Free end 10 of the clamping part 3 is a cutting element 12 with two in the insertion direction 11 of a conductor (FIG. 4 and FIG. 5) one behind the other arranged cutting edges 12a and 12b provided.
  • the Cutting element 12 is parallel to one another by means of a bolt 13 axis 13 'to the conductor axis rotatable on the clamping part 3 stored.
  • the cutting element 12 and the bolt 13 expediently from one part, e.g. as a sintered part, shaped and thus formed in one piece or in one piece.
  • the contact part 2 faces the clamping area 8 Side of the clamping screw 4 a molded from the contact plate and in the direction of the clamping part 3 pointing stop 14 for the clamping part 3. Furthermore, the contact part 2 a transverse to the direction of insertion 11 at least approximately embossing 15 extending the width of the clamping area 8 as an introduction aid for the or each leader.
  • the contact part 2 is also in the clamping area 8 with one two rows of cutting teeth 16, 17 formed cutting element Mistake.
  • the cutting teeth 16, 17 are opposite the cutting edges 12a, 12b of the cutting element 12 of the clamping part 2 staggered.
  • the front row of the cutting element of the contact part 2 comprises two cutting teeth 16, while the rear row has three cutting teeth 17 (FIG 1).
  • the height h 'of the rear cutting teeth 17 in the insertion direction 11 again larger than that of the front cutting teeth 16.
  • Die front cutting teeth 16 are provided with an insertion bevel, while the rear cutting teeth 17 run in opposite directions are beveled.
  • the contact part 2 is in the clamping area 8 with an inclination angle ⁇ - compared to a horizontally running clamping area - trained obliquely.
  • the angle of inclination ⁇ expediently larger than the angle of inclination ⁇ of the clamping part 3.
  • the diameter path d 1 of the conductor 18 is, for example, 2.5 mm 2
  • the diameter d 2 of the conductor 19 is, for example, 0.5 mm 2 . 5 shows the clamped state of the conductors 18, 19 in the longitudinal section of the conductor 18.
  • the terminal contact is - for example by turning to the right the clamping screw 4 - the terminal 1 from the in Figures 1 to 3 visible position in the figures 4 and 5 position shown.
  • This is supported Clamping part 3 on the one hand via its stop leg 7 at the support point 9 of the contact part 2 and on the other hand on the conductors 18, 19, while the movable cutting edges 12a, 12b penetrate the insulation 20 of the conductors 18, 19. simultaneously the cutting teeth 16, 17 of the contact part 2 are also through the insulation 20 to the conductor core 21 each conductor 18, 19 pressed.
  • the stop 14 reliably prevents the conductors 18, 19th be severed. This is also supported by the offset arrangement of the cutting edges 12a, 12b of the clamping part 3 on the one hand and the rows of teeth 16, 17 of the contact part 2 on the other ensured. This staggered arrangement ensures also a secure hold of the conductor 18, 19 in the Terminal 1.
  • the different heights h, h 'der Cutting 12a, 12b or the cutting teeth 16, 17 also make reliable contacting of conductors 18, 19 with small ones and safe with large cross sections.
  • the clamping screw 4 is expediently tightened to a predetermined torque required for penetrating the conductor insulation 20.
  • the clear width of the through hole 5 is compared to Shaft thickness of the clamping screw 4 dimensioned such that a movement of the clamping part 3 at least in the direction of insertion 11 possible when screwing and loosening the clamping screw 4 remains.
  • An annular bead 22 on the screw shaft and one with this corresponding embossing 23 allow in the area of the through hole 4 of the clamping part 3 a self-lifting of the clamping part 3 when loosening the Clamping screw 4.
  • the clamping part 3 moves, e.g. at a left turn of the clamping screw 4 so that a simple and safe loosening of the contact connection in the clamping area 8 is reached.
  • the housing shown only hinted in FIG 1 is part of a switching device. This is expediently designed such that the contact part 2 can be clamped in a simple and time-saving manner.
  • Conductors 18 with a small diameter d 2 - and thus conductors 18 with cross sections ⁇ 0.5 mm 2 - and with a comparatively large diameter d 2 and cross sections ⁇ 2.5 m 2 should also be contacted in any position.
  • a switch contact 25 of the contact part 2 can be seen in FIGS. 1, 3, 4 and 5.

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Clamps And Clips (AREA)
EP99936370A 1998-06-08 1999-05-31 Anschlussklemme Expired - Lifetime EP1086513B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19825565 1998-06-08
DE19825565 1998-06-08
PCT/DE1999/001602 WO1999065114A2 (de) 1998-06-08 1999-05-31 Anschlussklemme

Publications (2)

Publication Number Publication Date
EP1086513A1 EP1086513A1 (de) 2001-03-28
EP1086513B1 true EP1086513B1 (de) 2003-08-13

Family

ID=7870290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99936370A Expired - Lifetime EP1086513B1 (de) 1998-06-08 1999-05-31 Anschlussklemme

Country Status (5)

Country Link
EP (1) EP1086513B1 (ja)
JP (1) JP4343437B2 (ja)
CN (1) CN1125502C (ja)
DE (1) DE59906602D1 (ja)
WO (1) WO1999065114A2 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003230574A1 (en) * 2002-03-01 2003-09-16 Woodhead Industries, Inc. Field-attachable connector with sliding contacts
JP4551197B2 (ja) * 2004-11-26 2010-09-22 ホーチキ株式会社 電源接続端子
CN101320848B (zh) * 2008-03-28 2010-10-06 时珺 可观察防松动的接线器
JP5022433B2 (ja) * 2009-12-21 2012-09-12 ホーチキ株式会社 電源接続端子
EP2456010A1 (en) 2010-11-23 2012-05-23 Saia-Burgess Controls AG Network component comprising an electrical device
EP2456022A1 (en) * 2010-11-23 2012-05-23 Saia-Burgess Controls AG Electrical device
DE102015222851A1 (de) * 2015-11-19 2017-05-24 Siemens Aktiengesellschaft Elektrisches Verbindungselement für ein Kabelende

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2229835C3 (de) * 1972-06-19 1975-12-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Klemme zum Anschluß eines elektrischen Leiters
GB2210734A (en) * 1987-09-17 1989-06-14 Bicc Plc Terminating insulated conductors
DE3808794A1 (de) * 1988-03-16 1989-09-28 Preformed Line Products Great Abzweigklemme fuer elektrische leiter
US5470183A (en) * 1993-11-22 1995-11-28 Swick; E. Grant Electrical connection terminal assembly and tilt washer

Also Published As

Publication number Publication date
WO1999065114A3 (de) 2000-03-16
JP2002518799A (ja) 2002-06-25
CN1303531A (zh) 2001-07-11
JP4343437B2 (ja) 2009-10-14
EP1086513A1 (de) 2001-03-28
WO1999065114A2 (de) 1999-12-16
DE59906602D1 (de) 2003-09-18
CN1125502C (zh) 2003-10-22

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