EP1100150B1 - Spring clamp for large conductor cross-sections - Google Patents

Spring clamp for large conductor cross-sections Download PDF

Info

Publication number
EP1100150B1
EP1100150B1 EP20000123097 EP00123097A EP1100150B1 EP 1100150 B1 EP1100150 B1 EP 1100150B1 EP 20000123097 EP20000123097 EP 20000123097 EP 00123097 A EP00123097 A EP 00123097A EP 1100150 B1 EP1100150 B1 EP 1100150B1
Authority
EP
European Patent Office
Prior art keywords
locating
tension spring
clamping leg
characterised
insert
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
EP20000123097
Other languages
German (de)
French (fr)
Other versions
EP1100150A1 (en
Inventor
Olaf Despang
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
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
Priority to DE29919903U priority Critical
Priority to DE29919903U priority patent/DE29919903U1/en
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP1100150A1 publication Critical patent/EP1100150A1/en
Application granted granted Critical
Publication of EP1100150B1 publication Critical patent/EP1100150B1/en
Application status is Not-in-force legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/48Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring
    • H01R4/4845Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring insertion of a wire only possible by pressing on the spring

Description

The invention relates to a Zugfederanschluß for large conductor cross-sections, with a Busbar piece and at least one tension spring placed on it, the one Investment and a clamping leg has. Such tension spring connections are in large extent used in terminal blocks. Are the terminal blocks as High current terminals designed and must therefore ladder with large conductor cross sections can be connected, the not inconsiderable bending stiffness Such conductor in conjunction with strong conductor movements in the wiring work lead to such a strong mechanical load on the nip, that their electrical contact safety is at risk.

To improve the contact security, it has become known in the field of Clamping point in such Zugfederanschlüssen form a contact chamber, whose walls the conductor can contact.

Such Zugfederanschluss is known in practice, in which the contact chamber on the busbar itself by multiple bends is formed by wall sections. The production of the busbar thereby complicates itself extraordinarily. The associated high production costs are with regard to the mass and series part character of a such component particularly negative.

From DE 197 41 135 A1 a tension spring connection of the generic type is known become, in which for forming the contact chamber an additional part in the form a U-shaped bracket is used, with a bent-up End piece of the busbar piece is firmly connected and after his Mounting together with the corresponding surface of the busbar end piece forms an all-sided closed contact chamber.

Although thereby complicates the manufacture of the busbar piece, but must the bow-shaped additional piece in manufacturing technology complex manner by caulking, riveting, soldering or welding to the busbar piece be attached. The additional part must also be relatively in its basic structure be complicated to a mounting option on the busbar piece to Offer. Thus, here too high production costs are to be accepted.

The present invention is based on the object, a Zugfederanschluß of the generic type to create, while ensuring a sufficient Contact security is particularly simple and thus inexpensive to manufacture. The Invention consists essentially in that the additional part is a loose insert, in the inserted state of the clamping leg of the tension spring mechanically and is held in electrical contact with the busbar piece. In this way No structural changes to the common busbar pieces are required. In addition, also eliminates an additional attachment of an additional part at the busbar piece, since the contact chamber forming loose insert now taking advantage of the clamping force of the clamping leg of the tension spring the busbar piece is held.

The insert has in an expedient embodiment an investment and clamping leg, with it mechanically and electrically contacting by the clamping force the clamping leg of the tension spring is held on the busbar piece and according to the respective embodiment, one or two further conductor contact surfaces. Thus, the insert itself has a simple constructive Structure, resulting in a simplified production of such Zugfederanschlusses contributes.

In this embodiment, at least one side of the insert formed by the insert remains Contact chamber open. Since such Zugfederanschlüsse in terminal blocks are used and thus find themselves in their insulating housings, can the open side in an advantageous manner with appropriate design of the terminal block housing be closed by the insulating material.

Further preferred embodiments are characterized in further subclaims.

Embodiments of tension spring connections according to the invention will be described below described in more detail with reference to the accompanying drawings.

Show it:

FIG. 1
a partial perspective view of a Zugfederanschlusses,
FIG. 2
a corresponding partial view of another embodiment of such Zugfederanschlusses,
FIG. 3
a further embodiment of an insert part of such Zugfederanschlusses.

In the embodiments of Figures 1 and 2 is a tension spring connection intended for large conductor cross-sections, which has a busbar piece 1, whose illustrated end is bent up at right angles. If such a tension spring connection arranged in the insulating housing of a terminal block, can at This configuration of the conductors are fed from above. The other, not shown End of the busbar piece 1 can be identical, but also different be designed.

On the high-angle end of the busbar piece 1 is a tension spring. 2 arranged, which has a plant leg 3, with which they on the busbar piece 1 is applied and further by a loop-shaped bend with the Investment leg 3 connected clamping leg 4 has, in turn, a window. 5 has, through which the conductor rail piece 1 can pass through when placing such that the clamping edge formed by the lower end of the window 5 6 on the bottom or outside, where the conductor to be connected is supplied is, lies.

To increase the contact safety when connecting relatively rigid Ladders with large cross sections is now provided an additional part, which is a kind Contact chamber forms, in which the conductor to be connected can enter. According to the invention this accessory is to form a contact chamber as a loose insert 7, 7a, 7b formed in its various embodiments in the Figures 1, 2 and 3 is illustrated. In all three embodiments of the insert 7, 7a, 7b, the insert has a bearing and clamping leg 8. The insert is arranged so that the one surface of this investment and clamping leg 8 taking advantage of the clamping force of the clamping leg 4 of the tension spring 2 clamped by this on the bottom or outside of the busbar piece 1 is and held mechanically and with the busbar piece. 1 is contacted electrically. The inserted state is illustrated in FIGS. 1 and 2.

For the desired increase in contact reliability for large conductor cross sections are in the embodiments of one or two other conductor contact surfaces formed the insert.

In the embodiment of Figure 1, the insert 7 has two laterally angled Edge sections 9, on both sides in each case two further conductor contact surfaces form. The contact chamber for the electrical conductor is thus of these Wall sections 9 and the investment and clamping leg 8 defined. At this Embodiment, the contact chamber is open to the bottom or outside. She can this open side by a corresponding design of the Zugfederanschluß receiving insulating material of a terminal block are closed.

In the embodiment shown in Figure 2, the insert 7a has next to the Investment and clamping leg 8 a molded thereon, the decentralized investment and clamping leg 8 opposite wall portion 10, which is another Defined conductor contact surface. In this embodiment, the contact chamber thus formed open on both sides and can here of sections of the surrounding insulating material the terminal block are closed.

In the embodiment of an insert 7b shown in Figure 3 is on one side of the investment and clamping leg 8 side a first wall portion 11th molded and angled, to which, again angled, another Wall section 12 connects, the distance from the investment and clamping leg 8 opposite. In this insert are in turn two more, of the Wall sections 11 and 12 defined conductor contact surfaces available. The one of this Insert 7b formed contact chamber is open on one side and can here from the insulating housing of a Zugfederanschluß receiving terminal block getting closed.

Closing the contact chamber by means of the insulating material of the surrounding terminal block housing increases the stability of the connection and restricts the conductor mobility behind the nip.

The surrounding insulating material of the terminal block is designed so that the insert 7, 7a, 7b also in open nip of the tension spring in position holds.

In a further advantageous embodiment of the investment and clamping leg 8 of the Inserted parts 7, 7 a, 7 b provided with a corrugation 13, which expediently located on both sides of the plant and clamping leg 8, so that defined by Contact points of the current transfer both to the conductor to be connected as well adjacent conductor rail piece 1 is improved.

Claims (8)

  1. Tension spring connection for large conductor cross-sections, with a bus bar section (1) and at least one tension spring (2) comprising a locating leg (3) and a clamping leg (4) mounted thereon, and with an auxiliary part for producing a contact chamber for the conductor to be connected, characterised in that the auxiliary part is a loose insert (7, 7a, 7b) which, in the installed position, is held against the bus bar section (1) by the clamping leg (4) of the tension spring (2) for mechanical end electrical contact.
  2. Tension spring connection according to claim 1, characterised in that the insert (7a) features a locating and clamping leg (8) and a further conductor locating surface.
  3. Tension spring connection according to claim 2, characterised in that, on the locating and clamping leg (8) of the insert (7a), a wall section (10) defining the further conductor locating surface is formed by an angle section opposite and at a distance from the locating and clamping leg (8).
  4. Tension spring connection according to claim 1, characterised in that the insert (7, 7b) features a locating and clamping leg (8) and two further locating surfaces.
  5. Tension spring connection according to claim 4, characterised in that two laterally angled wall sections (9) integral with the locating and clamping leg (8) and defining the two further conductor locating surfaces are provided.
  6. Tension spring connection according to claim 4, characterised in that a laterally angled wall section (11) integral with the locating and clamping leg (8) is provided, at the end of which a further integral, angled wall section (12) is provided opposite and at a distance from the locating and clamping leg (8), the two wall sections (11, 12) defining the two further conductor locating surfaces.
  7. Tension spring connection according to any of the preceding claims, characterised in that the locating and clamping leg (8) of the insert (7, 7a, 7b) features a corrugation (13).
  8. Tension spring connection according to claim 7, characterised in that the corrugation (13) is provided on both sides of the locating and clamping leg (8).
EP20000123097 1999-11-12 2000-10-25 Spring clamp for large conductor cross-sections Not-in-force EP1100150B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE29919903U 1999-11-12
DE29919903U DE29919903U1 (en) 1999-11-12 1999-11-12 Spring connector for large conductor cross-sections

Publications (2)

Publication Number Publication Date
EP1100150A1 EP1100150A1 (en) 2001-05-16
EP1100150B1 true EP1100150B1 (en) 2005-11-16

Family

ID=8081538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000123097 Not-in-force EP1100150B1 (en) 1999-11-12 2000-10-25 Spring clamp for large conductor cross-sections

Country Status (5)

Country Link
US (1) US6350162B1 (en)
EP (1) EP1100150B1 (en)
AT (1) AT310323T (en)
DE (2) DE29919903U1 (en)
ES (1) ES2251926T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979573B1 (en) 2012-09-28 2015-03-17 Phoenix Contact Development and Manufacturing, Inc. Connector block with spring-loaded electrical terminal assemblies

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50206521D1 (en) 2001-04-23 2006-06-01 Weidmueller Interface Spring clamp and spring terminal row
DE50313417D1 (en) 2002-04-12 2011-03-03 Weidmueller Interface Connection device for conductors
DE10315668B4 (en) * 2002-08-28 2007-06-06 Conrad Stanztechnik Gmbh terminal
FR2846154B1 (en) * 2002-10-17 2004-12-17 Schneider Electric Ind Sas Elastic connection terminal
US6893286B2 (en) * 2003-09-06 2005-05-17 Weidmüller Interface GmbH & Co. KG Connector apparatus adapted for the direct plug-in connection of conductors
US7101231B2 (en) * 2003-10-09 2006-09-05 Cooper Technologies Company Locking spring-clamp terminal block and method for connecting the same
DE102004045025B3 (en) * 2004-09-15 2006-02-16 Phoenix Contact Gmbh & Co. Kg Electrical connection or connection terminal
DE102004046471B3 (en) * 2004-09-23 2006-02-09 Phoenix Contact Gmbh & Co. Kg Electrical connection or connection terminal
DE202006003400U1 (en) * 2006-03-04 2007-07-12 Weidmüller Interface GmbH & Co. KG Connection system with direct plug connection
DE202006015363U1 (en) * 2006-10-05 2008-02-21 Wieland Electric Gmbh Spring force clamping point
CN101425631B (en) 2007-10-31 2011-07-27 奇美通讯股份有限公司 Spring leaf construction and array type spring leaf device applying the construction
US7785134B2 (en) * 2008-12-30 2010-08-31 General Electric Company Contact terminal for conductors
FR2954604B1 (en) * 2009-12-22 2015-02-20 Legrand France Automatic electrical connection terminal and electrical equipment comprising such a terminal
US8262422B1 (en) * 2011-07-28 2012-09-11 Cheng Uei Precision Industry Co., Ltd. Electrical connector
US9130285B2 (en) * 2012-09-05 2015-09-08 Hubbell Incorporated Push wire connector having a spring biasing member
DE102013109640B4 (en) * 2013-09-04 2018-05-24 Wago Verwaltungsgesellschaft Mbh Spring-cage terminal and terminal component
US9576762B2 (en) 2015-04-03 2017-02-21 Eaton Corporation Electrical switching apparatus and secondary disconnect assembly with error-proofing features therefor
US9336977B1 (en) 2015-04-03 2016-05-10 Eaton Corporation Electrical switching apparatus and secondary disconnect assembly with terminal retention and correction features therefor
US9570261B2 (en) 2015-04-03 2017-02-14 Eaton Corporation Electrical switching apparatus and secondary disconnect assembly with contact alignment features therefor
US9396889B1 (en) 2015-04-03 2016-07-19 Eaton Corporation Electrical switching apparatus and secondary disconnect assembly with cradle assembly alignment and positioning features therefor
DE102016111536A1 (en) * 2016-06-23 2017-12-28 Wago Verwaltungsgesellschaft Mbh Contact insert of a spring-loaded connection terminal and thus formed spring-force connection terminal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727091C1 (en) * 1987-08-14 1989-02-02 Wieland Elek Sche Ind Gmbh F Screwless connection and / or connecting terminal
GB9311559D0 (en) * 1993-06-04 1993-07-21 Amp Gmbh Spring clamp actuator
DE4319018C1 (en) * 1993-06-08 1994-06-30 Kostal Leopold Gmbh & Co Kg Electrical terminal clamp rail
GB9508153D0 (en) * 1995-04-21 1995-06-07 Amp Gmbh Spring clamp terminal
DE29608178U1 (en) * 1996-05-06 1996-07-25 Weidmueller Interface Spring connector with tuck stop element
DE19632187C2 (en) * 1996-08-09 1998-07-02 Weidmueller Interface Spring connector for electrical conductors
DE19741136C2 (en) * 1997-09-12 2000-09-07 Wago Verwaltungs Gmbh Electrical supply or connecting terminal
DE19741135A1 (en) * 1997-09-12 1999-04-01 Wago Verwaltungs Gmbh Electrical connector clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979573B1 (en) 2012-09-28 2015-03-17 Phoenix Contact Development and Manufacturing, Inc. Connector block with spring-loaded electrical terminal assemblies

Also Published As

Publication number Publication date
US6350162B1 (en) 2002-02-26
AT310323T (en) 2005-12-15
ES2251926T3 (en) 2006-05-16
DE29919903U1 (en) 2001-03-29
DE50011620D1 (en) 2005-12-22
EP1100150A1 (en) 2001-05-16

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