EP0806812A2 - Connecteur à ressort pour conducteur électrique ayant des nervures de butée - Google Patents

Connecteur à ressort pour conducteur électrique ayant des nervures de butée Download PDF

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Publication number
EP0806812A2
EP0806812A2 EP97106686A EP97106686A EP0806812A2 EP 0806812 A2 EP0806812 A2 EP 0806812A2 EP 97106686 A EP97106686 A EP 97106686A EP 97106686 A EP97106686 A EP 97106686A EP 0806812 A2 EP0806812 A2 EP 0806812A2
Authority
EP
European Patent Office
Prior art keywords
tension spring
stop elements
pocket
housing
recesses
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.)
Granted
Application number
EP97106686A
Other languages
German (de)
English (en)
Other versions
EP0806812B1 (fr
EP0806812A3 (fr
Inventor
Gerald Krebs
Heins Gotta
Klaus Endres
Manfred Lange
Siegfried Schwarzer
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
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP0806812A2 publication Critical patent/EP0806812A2/fr
Publication of EP0806812A3 publication Critical patent/EP0806812A3/fr
Application granted granted Critical
Publication of EP0806812B1 publication Critical patent/EP0806812B1/fr
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
    • H01R4/28—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
    • H01R4/4811—Spring details
    • H01R4/4816—Spring details the spring shape preventing insertion of the conductor end when the spring is unbiased
    • 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
    • H01R4/484—Spring housing details
    • H01R4/4844—Spring housing details the spring housing being provided with multiple openings for insertion of a spring-activating tool

Definitions

  • the invention relates to a tension spring connection for electrical conductors, in particular for use in fixed-pole housings, according to the preamble of claim 1.
  • Tension spring connections consist of an approximately loop-shaped tension spring, one end area of which forms a leg for resting on a busbar and the other end area of which forms a leg oriented approximately perpendicular to the busbar.
  • a window for the passage of the conductor rail is arranged, the lower edge of which forms a clamping edge for clamping a conductor under the conductor rail.
  • Tension spring connections of this type are known in their construction and are commercially available. For tension spring connections of this type, it is very important, when actuating the tension spring to insert a conductor, to ensure that an overextension of the tension spring does not exceed permissible values and that there is no deterioration in function due to plastic deformation of the tension spring. For this purpose, the tension spring is supported in its position on the conductor rail in such a way that when it is actuated, in particular during its opening movement, an overextension of the spring is prevented.
  • connection strips are assembled from individual plastic washers, whereby a subassembly, consisting of busbar and tension spring, can be easily inserted into the housing washer from the side, in accordance with the assembly and function.
  • Securing the tension spring against overstretching is problem-free, usually by means of a stop cam molded onto the plastic housing of the disk.
  • This stop cam has a shape adapted to the interior of the tension spring, so that the tension spring can freely deform when actuated in an area that can be defined by the shape of the cam. After this permissible deformation has been exceeded, part of the tension spring contacts the stop cam and can then no longer be deformed.
  • the stop cam extends from a wall of the connecting disk far into the interior enclosed by the tension spring and permits lateral mounting of the tension spring only when the connecting disk is isolated.
  • the object of the present invention is therefore to support a tension spring of known construction in a connection element, preferably a connection element with a fixed-pole housing, in such a way that assembly can be carried out by a simple plug-in movement and reliable support of the tension spring against inadmissible deformations during operation is ensured.
  • An essential feature of the invention of the proposed tension spring connection is that the tension spring is inserted into a pocket formed by the housing and, with sections of narrower width formed by edges near the edges, protrudes between stop elements which are fixed on both sides of the pocket and which protrude into the space enclosed by the tension spring and that the tension spring is actuated with sections of greater width can be applied to the stop elements.
  • a tension spring usually consists of a sheet-metal strip made of spring steel wire, which is bent in a loop-shaped manner in a known manner and which has a usually the same width along its entire length. Such a tension spring can only be inserted into a housing pocket if no projections are arranged on the side surfaces of the housing pocket, as is not the case, for example, with the known inner stop cams.
  • a projection can be made on the inside of the pocket, at least in the regions in which the recesses come to lie within the pocket after insertion be arranged on the wall surfaces of the pocket, which at least partially protrudes into the interior of the loop-shaped area of the tension spring.
  • such projections are provided on both sides on the inner surfaces of the housing pocket, these stop elements corresponding to the sections of the tension spring of smaller width formed by recesses near the edge.
  • the recesses close to the edges are arranged in the region of the tension spring which first enters the pocket fixed to the housing when it is inserted. This is usually the section opposite the window of the tension spring, in which the greatest deformation occurs when the tension spring is actuated.
  • the shape and the alignment of the recesses of the tension spring is primarily predetermined by the direction of insertion of the tension spring into the housing pocket, since pivoting of the tension spring within the housing pocket must be avoided as far as possible in order to achieve simple joining movements, for example a purely linear joining movement.
  • the wider sections of the tension spring which bear against the stop elements, are arranged adjacent to the recesses of the tension spring near the edges.
  • tension spring connection has stop elements which extend so far in the direction of insertion of the tension spring that a stop occurs between wider sections of the tension spring and stop elements, preferably in the hump area of the tension spring, which is loaded directly with an actuating tool. This ensures that a correspondingly large counterforce securely supports this load by the point of application of the actuating force of the tension spring, without impermissible deformations occurring due to poor leverage.
  • tension spring connection has stop elements which extend so far in the direction of insertion of the tension spring that a stop occurs between wider sections of the tension spring and stop elements just above the end of the radius area of the tension spring.
  • stop elements can be reliably prevented that the radially sensitive area of the tension spring is deformed inadmissibly.
  • the contact edges of the stop elements are arranged in the housing pocket in such a way that a flat contact between stop elements and wider sections of the tension spring occurs when the stop is struck.
  • the tension spring connection according to the invention is that the pocket-fixed stop elements for sufficient support are only slightly in must protrude the space enclosed by the tension spring, in particular only a few tenths of a centimeter are sufficient.
  • the tension spring characteristic is only slightly impaired in its tension spring characteristic, at the same time the row spacing can be maintained due to the slight impairment of the spring characteristic of the tension spring.
  • the drawing shows preferred embodiments of the tension spring connection according to the invention.
  • FIG. 1 shows a basic illustration of how the tension spring connection according to the invention enables the tension spring 1 to be supported against inadmissible actuations.
  • the tension spring 1 is shown inserted into a housing pocket 4 formed by the housing 19, the housing 19 being partially cut free for better clarity.
  • the tension spring 1 of basically known construction consists of an insertion area, which is largely covered in FIG. 1 and has a plug-in window 10 (not shown here) for pushing through a conductor (also not shown).
  • the hump area 17 adjoins the window area of the tension spring 1, on which an actuating tool (not shown) for opening the tension spring 1 can engage.
  • the insertion opening 9 into the housing-fixed pocket 4 is indicated above the tension spring 1, through which the tension spring 1 can be inserted into the housing pocket 4 in the direction of the mounting direction 7.
  • the tension spring 1 is provided with recesses 2 and is arranged relative to stop elements 3, which are also shown in principle in the lower region of the housing pocket 4.
  • the tension spring 1 has been provided with recesses 2 in its area assigned to the lower end of the housing pocket 4 in such a way that the recesses 2 in the inserted position of the tension spring 1 give space for the stop elements 3 which are arranged on the end walls of the tension spring 1 of the walls of the housing pocket 4 are formed.
  • These recesses 2 are produced in an advantageous manner before the tension spring 1 is bent, for example by notching, and are advantageously notched in the range of only a few tenths of a millimeter.
  • the tension spring 1 will have a smaller width in this area, so that when the tension spring 1 is inserted into the housing pocket 4 in this area it can protrude between the stop elements 3 without getting jammed between the stop elements 3 of the housing pocket 4.
  • the dimensional design of the stop elements 3 and the recesses 2 is chosen so that the tension spring 1 can be used with little play.
  • the end of the recesses 2 facing the busbar 11, not shown, is arranged above the vertical end of the stop elements 3.
  • connection element which consists of a housing 19 in which a housing pocket 4 for receiving a tension spring 1 is formed. Above the housing pocket 4, the housing pocket 4 can be closed by means of latching connections 5 with a housing cover 15, an actuating opening 13 for actuating the tension spring 1 and an insertion opening 14 for a conductor (not shown) being formed in the housing cover 15.
  • a plug-in tulip 12 is indicated, which can be brought into electrical contact with the tension spring 1 via a busbar 11.
  • the housing 19 can be plugged on by means of latching hooks 16, for example, on corresponding counter contacts, not shown.
  • a tension spring 1 is inserted into a housing pocket 4 and is supported on the busbar 11 in a known manner.
  • the tension spring 1 is installed through the plug-in opening 9 which has been opened before the cover 15 is put in place, a combination of plug tulip 12, busbar 11 and tension spring 1 being particularly advantageously inserted into the housing 19.
  • a stop element 3 can be seen, which extends over the entire area of the inner wall of the housing pocket 4 arranged on the front side of the tension spring 1.
  • This stop element 3 corresponds to recesses 2 of the tension spring 1, through which the tension spring 1 has a somewhat smaller width in this area than in the wider ones Sections 18 has.
  • the tension spring 1 can be inserted into the housing pocket 4 in the undeformed state in the direction of the mounting direction 7 with a corresponding design of the widths without clamping contact with the stop elements 3.
  • the movable leg of the tension spring 1 has further sections 18 which, when this leg is deformed, can rest against the associated surfaces of the stop elements 3, as can be seen in FIG. 4, which is otherwise identical to FIG. 3.
  • FIGS. 5 and 6 show a connection element analogous to FIGS. 4 and 5, the undeformed position of the tension spring 1 being indicated in FIG. 5 and the deformed position being shown in FIG. 6.
  • the connecting element in FIGS. 5 and 6 is a connecting element with an actuation primarily in the horizontal direction according to FIG. 5 according to arrow VIII. This results in constructive changes to the busbar 11 and to housing components, which are of no importance in this connection. What is different, however, is the dimensional design of the stop elements 3, which because of the mounting of the tension spring 1 in the direction of the mounting direction 7 do not protrude so far into the interior enclosed by the tension spring 1 and therefore, as can be seen in FIG. 6, a not so clearly large support allow the movable leg of the tension spring 1.
  • the stop element 3 according to FIGS. 5 and 6 can also be varied by constructive measures, in particular the shape of the busbar 11 and the tension spring 1, and a greater overlap between the wider sections 18 of the tension spring 1 and the stop elements 3 can be achieved.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Window Of Vehicle (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP97106686A 1996-05-06 1997-04-23 Connecteur à ressort pour conducteur électrique ayant des nervures de butée Expired - Lifetime EP0806812B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29608176U 1996-05-06
DE29608176U DE29608176U1 (de) 1996-05-06 1996-05-06 Zugfederanschluß für elektrische Leiter mit Anschlagrippen

Publications (3)

Publication Number Publication Date
EP0806812A2 true EP0806812A2 (fr) 1997-11-12
EP0806812A3 EP0806812A3 (fr) 1998-09-30
EP0806812B1 EP0806812B1 (fr) 2001-10-04

Family

ID=8023590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106686A Expired - Lifetime EP0806812B1 (fr) 1996-05-06 1997-04-23 Connecteur à ressort pour conducteur électrique ayant des nervures de butée

Country Status (4)

Country Link
EP (1) EP0806812B1 (fr)
AT (1) ATE206562T1 (fr)
DE (2) DE29608176U1 (fr)
ES (1) ES2163059T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20120811U1 (de) * 2001-12-21 2003-04-30 Weidmüller Interface GmbH & Co., 32760 Detmold Sammelschienen-Anschlußklemme
DE10214919B4 (de) * 2002-04-04 2004-11-25 Siemens Ag Zugfederanschluss für elektrische Leiter
DE102006006050B4 (de) * 2006-02-09 2016-07-28 Wöhner GmbH & Co. KG Elektrotechnische Systeme Sicherungsleiste sowie Adapterleiste mit Kontaktstiften und der Sicherungsleiste
DE102006006051B4 (de) * 2006-02-09 2015-10-29 Wöhner GmbH & Co. KG Elektrotechnische Systeme Sicherungsleiste mit seitlichen Abgangskontakten
US7561018B2 (en) 2006-02-09 2009-07-14 Wöhner GmbH & Co. KG Fuse strip with lateral outgoing contacts and a lateral adapter module
DE202013105944U1 (de) 2013-12-26 2014-01-22 Wago Verwaltungsgesellschaft Mbh Federkraft-Klemmanschluss und Steckverbinder hiermit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9311559D0 (en) * 1993-06-04 1993-07-21 Amp Gmbh Spring clamp actuator
DE4319018C1 (de) * 1993-06-08 1994-06-30 Kostal Leopold Gmbh & Co Kg Schraubenlose Anschlußklemmenanordnung
DE4413611A1 (de) * 1994-04-19 1995-10-26 Thomas & Betts Gmbh Elektrischer Stecker für Flachbandleitungen
DE4435781A1 (de) * 1994-10-06 1996-04-11 Siemens Ag Federkraftklemme

Also Published As

Publication number Publication date
DE29608176U1 (de) 1996-07-25
ES2163059T3 (es) 2002-01-16
DE59704748D1 (de) 2001-11-08
ATE206562T1 (de) 2001-10-15
EP0806812B1 (fr) 2001-10-04
EP0806812A3 (fr) 1998-09-30

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