EP3619772B1 - Leiteranschlussklemme - Google Patents

Leiteranschlussklemme Download PDF

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Publication number
EP3619772B1
EP3619772B1 EP18719832.0A EP18719832A EP3619772B1 EP 3619772 B1 EP3619772 B1 EP 3619772B1 EP 18719832 A EP18719832 A EP 18719832A EP 3619772 B1 EP3619772 B1 EP 3619772B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
clamping
clamping spring
busbar piece
connection terminal
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.)
Active
Application number
EP18719832.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3619772A1 (de
Inventor
Thomas Witte
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.)
Wago Verwaltungs GmbH
Original Assignee
Wago Verwaltungs GmbH
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 Wago Verwaltungs GmbH filed Critical Wago Verwaltungs GmbH
Publication of EP3619772A1 publication Critical patent/EP3619772A1/de
Application granted granted Critical
Publication of EP3619772B1 publication Critical patent/EP3619772B1/de
Active 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
    • H01R4/48—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
    • 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
    • H01R4/4846—Busbar details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets

Definitions

  • the invention relates to a conductor connection terminal according to the preamble of claim 1.
  • From the US 2017/0012368 A1 A conductor connection terminal using push-in technology is known. From the DE 202 11 513 U1 A connection device with a clamping spring is known. From the EP 3 029 776 A1 a conductor connection terminal for mounting on a mounting rail is known. From the DE 10 2012 219 741 A1 An electrical contact and connectors with such an electrical contact are known. From the DE 10 2007 035 336 B3 A spring-loaded print terminal is known. From the DE 20 2013 105 944 U1 A spring-loaded terminal connection and a connector formed thereby are known. From the DE 10 2013 101 411 A1 A spring-loaded terminal connection and a conductor connection terminal are known. Another conductor connection terminal comes out of the DE 196 10 958 A1 out.
  • the invention is based on the object of designing a conductor connection terminal that is constructed as simply as possible and is particularly easy to install.
  • the invention makes it possible to design three elements of the busbar piece, clamping spring and sleeve in a relatively simple manner, in particular in such a way that two of the three individual elements are not yet self-supporting, that is, they would not be reliably fixed to one another without additional support.
  • a self-supporting conductor connection arrangement can be created that is particularly easy and convenient to assemble. Disassembly is also possible again without any problem.
  • the three elements busbar piece, clamping spring and sleeve are securely coupled to one another, so that these components do not fall apart or the clamping spring slips out in all three-dimensional degrees of freedom. This also ensures that the individual components are secure against loss.
  • the conductor connection terminal according to the invention can already be used as a conductor connection terminal, it can also be used as a contact insert of a conductor connection terminal designed with further features.
  • the sleeve thus forms a cover for the arrangement of the busbar piece and the clamping spring. This also results in increased stability of the arrangement through support at several points as well as protection of the clamping spring, in particular the spring arch and the areas of the contact leg and the clamping leg directly adjacent to the spring arch.
  • the individual elements such as the busbar section, clamping spring and sleeve can each be one-piece components.
  • the clamping spring and the busbar piece are made of metal; the sleeve can either be made of insulating material (plastic) or metal.
  • the conductor connection terminal is easy to assemble or disassemble.
  • the conductor connection terminal can be operated in different ways with regard to opening and closing the terminal point.
  • lever actuation is possible by moving the conductor connection terminal around an actuation lever is supplemented.
  • the actuating lever can, for example, be mounted on the sleeve.
  • actuation can be carried out using an external tool that is not part of the conductor connection terminal.
  • the sleeve has an enclosing area in which at least part of the clamping spring and part of the busbar piece is accommodated.
  • the enclosing area can in particular enclose the spring arch of the clamping spring and possibly also adjoining sections of the clamping leg and/or the contact leg.
  • the enclosing area of the sleeve can enclose the mentioned parts of the clamping spring or the busbar piece over their entire circumference (in a ring shape), or at least partially enclose them if the enclosing area has an interruption on the circumference, for example.
  • the sleeve has a conductor insertion area on which there is a conductor insertion opening for inserting an electrical conductor into the sleeve up to the clamping point.
  • the conductor insertion opening can, for example, be cylindrical or funnel-shaped in order to guide an electrical conductor specifically to the clamping point.
  • the enclosing area and the conductor insertion area of the sleeve overlap with one another. Viewed from the clamping point, the enclosing area only extends over part of the longitudinal extent of the sleeve. Accordingly, the sleeve encloses at least part of the clamping spring and/or part of the busbar piece only over this partial area.
  • the conductor insertion area begins with the conductor insertion opening at an end of the sleeve that faces away from the clamping point.
  • the conductor insertion area can extend over the entire length of the sleeve.
  • the conductor insertion direction and the direction of passage of the electrical conductor up to the clamping point can extend in particular in the longitudinal direction of the sleeve.
  • the sleeve can have a first longitudinal region and a second longitudinal region in the enclosing region. At least a portion of the spring is accommodated in the first longitudinal region.
  • the conductor insertion opening is formed in the second longitudinal region.
  • the busbar piece has at least one clamping spring holding element, via which the busbar piece is positively connected to the clamping spring, and / or the busbar piece has at least one sleeve holding element, via which the busbar piece is positively connected to the sleeve connected is.
  • a first sleeve holding element of the busbar piece has at least one first holding finger projecting from the busbar piece or is designed as such a first holding finger.
  • the surrounding area of the sleeve can have a stop surface for the busbar piece, e.g. for the holding finger.
  • the first holding finger can in particular protrude at an angle, for example a right angle or an oblique angle, from a plane of the busbar piece on which the clamping point is formed (conductor connection area of the busbar piece).
  • a second sleeve holding element of the busbar piece has at least one slot-shaped recess.
  • the busbar piece can be attached can be positively coupled to the sleeve at a second point in that a corresponding holding element of the sleeve can engage in the slot-shaped recess.
  • the sleeve has at least one busbar piece holding element, via which the sleeve is positively connected to the busbar piece, and/or the sleeve has at least one clamping spring holding element, via which the sleeve is positively connected to the clamping spring.
  • the sleeve can be particularly securely connected to the busbar piece and/or the clamping spring in a form-fitting manner.
  • the sleeve has a second holding area which projects from the enclosing area, the second holding area having at least one clamping spring holding element of the sleeve and/or at least one busbar piece holding element of the sleeve.
  • the holding area can, for example, be plate-shaped or panel-shaped.
  • a clamping spring holding element of the sleeve has at least one indentation and / or a busbar piece holding element of the sleeve has at least one hooking element, wherein the holding area between the hooking element and the indentation can have a partition.
  • the indentation and/or the hooking element can be arranged in particular on the second holding region of the sleeve.
  • the partition can form a separation between the hooking element and the indentation.
  • the busbar piece has at least one recess on its side facing the partition, into which at least part of the partition is immersed.
  • the depression which can be designed as an embossing, can, for example, be groove-shaped in the direction of extension the partition, so that the partition can dip into the recess over a certain longitudinal extent.
  • the recess can minimize deflection of the partition when a conductor is inserted into the conductor connection terminal.
  • a higher rigidity of the busbar piece is achieved in this area, which contributes to relieving the load on other support means between the busbar device and the sleeve. In this way, the partition wall securely separates the chamber areas of the conductor entry and the spring actuation from one another.
  • the clamping spring has at least one busbar piece holding element, via which the clamping spring is positively connected to the busbar piece, and / or the clamping spring has at least one sleeve holding element, via which the clamping spring is positively connected to the sleeve connected is.
  • the clamping spring can be positively coupled to the busbar piece and/or the sleeve in a particularly reliable manner.
  • a busbar holding element of the clamping spring can be connected to a clamping spring holding element of the sleeve.
  • a sleeve holding element of the clamping spring can be connected to a clamping spring holding element of the sleeve.
  • a sleeve holding element of the busbar piece can be connected to a busbar piece holding element of the sleeve.
  • the busbar holding element of the clamping spring and/or the sleeve holding element of the clamping spring can be arranged on one or on different first holding areas of the clamping spring.
  • the sleeve holding element of the clamping spring has at least one slot-shaped recess arranged on the clamping leg and/or on the contact leg. In this way, the sleeve can be easily and safely coupled to the clamping spring in a form-fitting manner.
  • the clamping leg has at least one clamping claw with a clamping edge at the free end and at least one second holding finger projecting in the same or in a different direction than the clamping claw on the clamping leg.
  • the second holding finger can have a pure holding function, i.e. serve for positive coupling of the clamping spring, for example to the sleeve or to the busbar piece. Accordingly, the holding finger then has no clamping function for clamping an electrical conductor. In such cases, the clamping function is performed solely by the clamping claw with its clamping edge.
  • the clamping claw can thus extend separately from the holding finger at the free end of the clamping leg, so that the aforementioned slot-shaped recess on the clamping leg of the clamping spring, which forms a sleeve holding element of the clamping spring, can be present between the clamping claw and the holding finger.
  • the second holding finger can also have a contact surface for contacting an actuating element for actuating the clamping spring in order to bring the clamping point from the closed position to the open position.
  • the conductor connection terminal can be designed without an additional insulating material housing. In such cases, at least part of the function of an insulating material housing can be taken over by the sleeve.
  • the conductor connection terminal can also be designed with an additional insulating material housing that at least partially encloses the busbar piece, the clamping spring and the sleeve.
  • the busbar piece can have a conductor stop.
  • the conductor stop is then arranged transversely to the conductor insertion direction, in particular perpendicular to the conductor insertion direction.
  • a conductor connection area of the busbar piece having the clamping point can extend parallel to the conductor insertion direction.
  • the busbar piece can have an elevation arranged in the conductor connection area and projecting in the direction of the clamping leg, for example in the form of an impression.
  • the survey can extend over the entire width of the busbar section or only over part of the width.
  • the busbar piece can have a support surface next to the elevation, viewed in the conductor insertion direction, for supporting the holding area of the sleeve.
  • the busbar piece and/or the clamping spring can have cross-sections that change over their course from one end to the other end.
  • the contact leg can taper from a first larger cross section to a second smaller cross section starting from the spring arch, for example by reducing the width of the material of the contact leg.
  • the area with the second smaller cross section can extend to the busbar piece holding element of the clamping spring.
  • the Figures 1 to 3 show the elements busbar piece 2, clamping spring 3 and sleeve 5 each as individual parts before they are assembled into a conductor connection terminal according to the other figures. It can be seen that the first holding areas 10, 11, 12 are arranged on the clamping spring 3 in a spatially distributed manner.
  • the busbar piece 2 has the fork contact projecting to the right from the base area 21, which forms a plug contact 20 of the busbar piece 2.
  • the invention is also suitable for busbar pieces of different design, for example busbar pieces with a different type of plug contact or even without plug contact.
  • the base area 21 can be U-shaped, as shown in the perspective views of Figures 5 to 7 is clarified.
  • the base region 21 merges into the second sleeve holding element 23 via the clamping spring holding element 19 and the connecting section 22, which is bent essentially at a right angle.
  • the second sleeve holding element 23 also forms a conductor stop for an electrical conductor inserted into the conductor connection terminal.
  • the base area 21 also merges into the horizontally extending conductor connection area 25 via the clamping spring retaining element 19 and the S-shaped transition area 24.
  • the sleeve 5 has a longitudinal direction which corresponds to a conductor insertion direction L, in which an electrical conductor can be inserted into the sleeve 5.
  • An electrical conductor is shown in the diagram Figure 3 inserted into sleeve 5 (corresponding to the arrow under the letter L) from the left.
  • the sleeve 5 first has the first longitudinal section 50 and then the second longitudinal section 51 on the enclosing region 52, which adjoins the first longitudinal section 50.
  • the second longitudinal section 51 serves to accommodate parts of the clamping spring 3 and/or the busbar piece 2 inside the enclosing area 52.
  • the fixing elements 58 serve to snap-fasten the sleeve 5 in an insulating material housing of the conductor connection terminal.
  • the second holding area 54 protrudes from the enclosing area 52 on the sleeve 5 in the conductor insertion direction L. As can be seen in the perspective illustrations, this can be designed as a substantially flat, plate-shaped part and formed in one piece with the enclosing area 52.
  • the clamping spring is shown in its relaxed position, ie in a position in which no electrical conductor is clamped between the clamping edge 36 and the elevation 26 and the clamping leg 34 is not otherwise deflected.
  • the Figure 7 shows the clamping leg 34 in a deflected position, in which it can be seen that the clamping edge 36 is spaced from the elevation 26. It is advantageous if the clamping spring still has a certain preload even in its relaxed position.
  • the clamping point for the electrical conductor is formed between the clamping edge 36 and the elevation 26.
  • the first holding area 11 of the clamping spring including the section of the clamping spring forming a further sleeve holding element 32, is accommodated in the enclosing area 52 of the sleeve 5. This is also done by the Figure 5 clarified.
  • the Figure 4 clarifies that the second holding area 54 of the sleeve 5 extends between the clamping claw 35 and the second holding finger 37, so that the clamping claw 35 is not visible. In the relaxed position of the In addition, the clamping spring 3 does not rest on the second holding finger 37 on the busbar piece 2 or its clamping section 25.
  • the busbar piece holding element 31 of the clamping spring 3 is attached to the clamping spring holding element 19 of the busbar piece 2.
  • the busbar piece holding element 31 is designed fork-like with a side opening, as can be seen from the perspective illustrations, in particular Figures 6 and 7 , becomes clear.
  • clamping spring extends with the clamping leg 34 into the area of the clamping spring holding element 55 of the sleeve 5 and is held there.
  • a positive connection is formed between the second sleeve holding element 23 of the busbar piece 2 and the busbar holding element 57 of the sleeve 5.
  • the width of the material of the busbar piece 5 varies over its longitudinal extent and thus also its cross-sectional area.
  • the shoulder area 28 of the busbar piece 2 is arranged, which protrudes laterally from the conductor connection area 25 essentially at right angles.
  • FIGS. 6 and 7 show that the enclosing area 52 of the sleeve 5 is not completely closed, but rather has a slot-shaped opening running in the longitudinal direction in the conductor insertion area 61.
  • the clamping leg 34 is divided at the end into the clamping claw 35 and the second holding finger 37, so that there is a slot-shaped recess between the clamping claw 35 and the second holding finger 37 is formed, which forms a sleeve holding element 38 of the clamping spring 3 in the first holding area 10 of the clamping spring 3.
  • the cross-sectional area of the clamping spring 3 also changes over its longitudinal extent, for example by varying the material width.
  • the clamping leg 34 increases its width, for example due to the shoulder area 39 arranged essentially at right angles.
  • the three elements busbar piece 2, clamping spring 3 and sleeve 5 are put together in such a way that the clamping spring is first coupled via its first holding area 12, ie the busbar piece holding element 31, to the clamping spring holding element 19 of the busbar piece 20.
  • the clamping spring 3 already holds loosely on the busbar piece 2, but can still come loose if this unit moves accordingly.
  • the sleeve 5 is now guided with the second holding area 54 forward to the busbar piece 2, the further sleeve holding element 32 of the clamping spring being received in the enclosing area 52. By contacting the second holding area 54 with the clamping leg 34, it is deflected slightly upwards from the relaxed position.
  • the sleeve 5 with the second holding area 34 can be supported on the top side of the conductor connection area 25 directed towards the elevation 26 and can slide along thereon.
  • the elevation 26 does not extend over the full width of the conductor connection area 25, but a narrow, flat area remains to the side of the elevation 26, on which the second holding area 54 can slide along next to the elevation 26 on the surface of the conductor connection area 25.
  • the free end of the clamping leg 34 reaches the clamping spring holding element 55 of the sleeve, ie the clamping leg 34 moves back into its relaxed position and dips into the recess of the second holding area 54 forming the clamping spring holding element 55 .
  • the sleeve 5 can be pushed on until it is in The first sleeve holding element 27, which is designed in the form of a holding finger, abuts the first busbar piece holding element 53 of the sleeve 5. It is then the one in the Figures 4 to 6 shown final assembly position of the conductor connection terminal is reached, in which all of the above-mentioned positive elements interlock and effect the mentioned fixation of the components of the conductor connection terminal. Dismantling the components is possible by simply pulling the sleeve counter to the conductor insertion direction L from the unit consisting of the clamping spring 3 and the busbar piece 2 with increased effort.
  • the Figure 8 shows a section through the conductor connection terminal according to Figure 4 in the section plane AA.
  • the busbar piece 2 for example in the area of the conductor connection area 25, can have a recess 18, for example in the form of an impression on the surface side of the busbar piece 2 facing the partition 56.
  • the recess 18 can be in the form of a groove , in particular be designed as a longitudinal groove, for example as a notch or another suitable shape.
  • the partition 56 has a corresponding shape on the side facing the busbar piece 2, with a bevel over which the partition 56 can dip into the recess 18.
  • the recess 18 and the fixation of the partition 56 via its immersion area in the recess 18 minimizes deflection of the partition 56 when a conductor is inserted.
  • the support of the partition 56 in the recess 18 contributes to the mechanical relief of the support area, which is formed between the first sleeve holding element 27 and the first busbar piece holding element 53.

Landscapes

  • Installation Of Bus-Bars (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP18719832.0A 2017-05-05 2018-04-20 Leiteranschlussklemme Active EP3619772B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017109701.5A DE102017109701A1 (de) 2017-05-05 2017-05-05 Leiteranschlussklemme
PCT/EP2018/060199 WO2018202445A1 (de) 2017-05-05 2018-04-20 Leiteranschlussklemme

Publications (2)

Publication Number Publication Date
EP3619772A1 EP3619772A1 (de) 2020-03-11
EP3619772B1 true EP3619772B1 (de) 2023-09-13

Family

ID=62046911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18719832.0A Active EP3619772B1 (de) 2017-05-05 2018-04-20 Leiteranschlussklemme

Country Status (4)

Country Link
EP (1) EP3619772B1 (zh)
CN (1) CN110546817B (zh)
DE (1) DE102017109701A1 (zh)
WO (1) WO2018202445A1 (zh)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720634A (en) * 1954-01-15 1955-10-11 Hart Mfg Co Quick detachable electrical connector
DE19610958C2 (de) * 1996-03-20 1999-02-04 Weidmueller Interface Mehrpoliger Steckverbinder mit Zugfederanschlüssen
EP1353407B1 (de) * 2002-04-12 2011-01-19 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung für Leiter
DE20211513U1 (de) * 2002-07-13 2003-11-27 Weidmüller Interface Gmbh & Co. Anschlußvorrichtung mit Klemmfeder
DE102004046471B3 (de) * 2004-09-23 2006-02-09 Phoenix Contact Gmbh & Co. Kg Elektrische Anschluß- oder Verbindungsklemme
DE102007035336B3 (de) * 2007-07-27 2009-02-05 Phoenix Contact Gmbh & Co. Kg Federkraftprintklemme
DE102009050367A1 (de) * 2009-10-22 2011-04-28 Phoenix Contact Gmbh & Co. Kg Federkraftanschlussklemme
DE102012219741A1 (de) * 2012-10-29 2014-04-30 Tyco Electronics Amp Gmbh Elektrischer Kontakt und Steckverbinder mit einem solchen elektrischen Kontakt
DE102013101411B4 (de) * 2013-02-13 2018-03-22 Wago Verwaltungsgesellschaft Mbh Federkraftklemmanschluss und Leiteranschlussklemme
DE202013105944U1 (de) * 2013-12-26 2014-01-22 Wago Verwaltungsgesellschaft Mbh Federkraft-Klemmanschluss und Steckverbinder hiermit
TWM502983U (zh) * 2014-12-04 2015-06-11 Switchlab Inc 軌道型電聯接端子之導電接線結構
EP3116065B1 (en) * 2015-07-07 2019-08-28 TE Connectivity Germany GmbH Push-in clamp retainer, push-in clamp assembly and electric connector element

Also Published As

Publication number Publication date
WO2018202445A1 (de) 2018-11-08
CN110546817B (zh) 2021-05-18
DE102017109701A1 (de) 2018-11-08
EP3619772A1 (de) 2020-03-11
CN110546817A (zh) 2019-12-06

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