EP2162952B1 - Borne électrique de raccordement et de liaison - Google Patents

Borne électrique de raccordement et de liaison Download PDF

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Publication number
EP2162952B1
EP2162952B1 EP08758671A EP08758671A EP2162952B1 EP 2162952 B1 EP2162952 B1 EP 2162952B1 EP 08758671 A EP08758671 A EP 08758671A EP 08758671 A EP08758671 A EP 08758671A EP 2162952 B1 EP2162952 B1 EP 2162952B1
Authority
EP
European Patent Office
Prior art keywords
clamp
leg
metal part
spring
retaining
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
EP08758671A
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German (de)
English (en)
Other versions
EP2162952A2 (fr
Inventor
Udo Hoppe
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact 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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2162952A2 publication Critical patent/EP2162952A2/fr
Application granted granted Critical
Publication of EP2162952B1 publication Critical patent/EP2162952B1/fr
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
    • H01R4/48275—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 with an opening in the housing for insertion of a release tool
    • 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
    • H01R13/04—Pins or blades for co-operation with sockets

Definitions

  • the invention relates to an electrical connection or connection terminal for connecting an electrical conductor, with a clamping spring and a metal part, wherein the clamping spring has a clamping leg and a plant leg, in the plant leg is formed a recess for insertion of the electrical conductor to be connected, the clamping leg and the plant leg of the clamping spring are bent towards each other so that the end of the clamping leg extends through the recess at the end of the clamping leg distal end of the recess a holding portion of the plant leg is punched and bent in the insertion direction of the electrical conductor to be connected, the metal part a contact leg , an opposite holding leg and a leg connecting the web, wherein the end of the clamping leg of the clamping spring and the contact leg of the metal part a spring terminal connection for the e form lektrischen conductor, and wherein the ends of the contact or holding leg each having a mounting portion and extending the attachment portion of the contact leg opposite to the insertion direction of the electrical conductor to be connected through the recess
  • An electrical connection terminal which has a U-shaped open clamping spring and designed as a corner angle busbar piece.
  • the busbar piece has a retaining leg arranged perpendicular to the conductor insertion direction and a contact leg, wherein a rectangular opening is formed in the retaining leg, through which the electrical conductor to be connected can be inserted.
  • the U-shaped clamping spring is inserted and held with the ends of its two legs in the opening so that the rear spring bow of the clamping spring is in the conductor insertion direction in front of the opening and the clamping leg of the clamping spring presses an inserted electrical conductor against the contact legs, so that the Clamping spring and the busbar piece form a spring terminal connection.
  • Similar electrical terminals, with a substantially U-shaped clamping spring and a metal part are also from the DE 203 12 861 U1 and the DE 202 10 105 U1 known. All these known terminals have in common that the clamping spring with the ends of its two legs in one Opening of the metal part is inserted, so that when opening the clamping spring there is a risk that the clamping spring slips.
  • loop-shaped clamping springs in electrical connection or connection terminals from the prior art for example, the DE 197 11 051 1A or the DE 198 02 945 C2 , known, namely as so-called tension springs in tension spring terminals.
  • Spring-cage terminals have established themselves over time in addition to screw terminals on the market and millions of times used in particular as terminal blocks.
  • the advantage of the spring clamp terminals compared to the screw terminals is that spring clamp terminals allow for faster and easier wiring.
  • To actuate the tension spring clamp requires only one operating tool, such as a screwdriver, which is inserted to open the terminal in an operating shaft. The tip of the screwdriver tensions the tension spring, which opens the clamping point.
  • a conductor to be connected can then be inserted through the recess in the clamping leg. After pulling out the screwdriver, the conductor is pulled through the lower edge of the recess against a busbar connected to the tension spring and thereby electrically contacted.
  • the known tension spring terminals differ in their design and in their function significantly from the connection or connection terminal described above.
  • the conductor to be connected pulled by the clamping leg against the busbar.
  • the conductor to be connected is pressed by the clamping leg against a region of the metal part.
  • an electrical connection or connection terminal described above, from which the invention proceeds, is known from the DE 10 2004 046 471 B3 known.
  • the clamping spring is not U-shaped - as in the from DE 196 54 611 A1 known connection terminal - but loop-shaped, wherein in the plant leg of the clamping spring, which is not parallel but substantially perpendicular to the insertion of the electrical conductor to be connected, a Recess is arranged for insertion of an electrical conductor to be connected.
  • the clamping leg and the abutment leg of the clamping spring are bent towards each other so that the end of the clamping leg extends through the recess.
  • the fixing of clamping spring and metal part takes place in that the clamping spring is fitted with its recess on the metal part.
  • two fastening sections are formed on the metal part, which are both inserted opposite to the insertion direction of the electrical conductor to be connected through the recess.
  • For mounting the clamping spring on the metal part of the plant leg is thus inserted with its recess on the two mounting portions of the metal part, so that the recess surrounds the two mounting portions like a frame.
  • a holding portion of the plant leg of the clamping spring is punched free, which is bent substantially perpendicular to the plant leg and engages behind the attachment portion of the retaining leg from the outside.
  • the present invention is therefore based on the object in the electrical connection or connection terminal described above to further improve the fixation of clamping spring and metal part.
  • a locking projection and the holding portion of the abutment leg formed an opening so that engages in the assembled state of clamping spring and metal part of the locking projection into the opening and thereby fixes the position of the clamping spring additionally.
  • the latching projection in this case preferably has a bevel, so that a latching of the latching projection allows little effort, while a larger force is required to release the latching connection.
  • the fixation of the clamping spring on the metal part is preferably further increased in that the clamping spring is clamped in the assembled state in the manner of a press fit between the mounting portions of the contact leg and the retaining leg.
  • the end of the clamping leg of the clamping spring on the contact leg of the metal part that the holding portion of the abutment leg is pressed against the voltage applied to its outer mounting portion of the retaining leg.
  • the holding portion is always pressed by the spring force of the clamping spring against the mounting portion of the retaining leg, even if no electrical conductor is inserted into the nip.
  • the contact pressure is increased even further, so that it can not come to an unwanted tilting of the clamping spring and thus to a release of the clamping spring from the metal part.
  • the proper position of the clamping spring on the metal part is additionally ensured that at the end of the retaining limb preferably two stops are formed, which are laterally spaced from the mounting portion of the retaining leg.
  • the clamping spring and metal part of the plant leg of the clamping spring can then rest against the stops, so that a tilting of the clamping spring in the direction of the metal part is prevented.
  • the clamping spring is thus fixed on the one hand by the recess extending through the mounting portion of the contact leg and on the other side by the mounting portion and the stops of the contact leg securely in its predetermined position.
  • the attachment portion of the contact leg is bent such that the attachment portion forms an insertion funnel for the electrical conductor to be connected together with the end of the clamping leg of the clamping spring.
  • the electrical connection or connection terminal according to the invention can be mounted directly on a printed circuit board, in which case, in particular, the contact leg of the metal part or a plug part connected to the metal part is soldered to the printed circuit board.
  • the clamping spring and the metal part are arranged in an insulating housing, wherein the insulating housing has a Portereinmentsöfmung for inserting the electrical conductor to be connected and an actuating opening for insertion of an actuating tool. Due to the design of the housing, an additional fixation of the clamping spring and the metal part can be realized. In addition, too wide opening of the clamping spring and thus destruction of the clamping spring can be prevented by the formation of the actuating opening and the arrangement of corresponding projections.
  • the electrical connection or connection terminal can also be used for fine-wire flexible conductor, in which an opening of the clamping spring by inserting the electrical conductor is not possible.
  • an already clamped electrical conductor can again be easily released from the clamping point.
  • a kink is formed on the clamping leg of the clamping spring, which is aligned in the direction of the spring force of the clamping leg, so that the tip of the actuating tool to open the clamping spring can act on the kink.
  • the formed on the clamping leg kink allows easier engagement of the tip of the actuating tool on the clamping leg to open the clamping spring.
  • the insertion depth of the actuating tool required for completely opening the clamping spring can thereby be reduced into the actuating opening.
  • connection or connection terminal for connecting a - only in Fig. 1
  • the main components of the connection or connection terminal are a clamping spring 2 and a metal part 3, wherein in Fig. 3 the clamping spring 2 and the metal part 3 are shown in the not yet assembled state.
  • the clamping spring 2 consists of a clamping leg 4, a plant leg 5 and the clamping leg 4 and the plant leg 5 connecting back 6. As from Fig. 1 it can be seen, the contact leg 5 of the clamping spring 2 is aligned substantially perpendicular to the insertion direction of the electrical conductor 1 to be connected. In the plant leg 5 while a recess 7 is formed for insertion of the conductor 1. At the end 8 of the clamping leg 4 far end of the recess 7, a holding portion 9 is punched out of the plant leg 5 and bent substantially perpendicular to the plant leg 5 in the insertion direction of the electrical conductor 1 to be connected.
  • the metal part 3 has a contact leg 10, an opposite holding leg 11 and a leg 12 connecting the legs 10, 11.
  • the contact leg 10 extends substantially parallel to the insertion direction of the electrical conductor 1 to be connected, so that the end 8 of the clamping leg 4 of the clamping spring 2 and the contact leg 10 of the metal part 3 form a spring terminal connection for the electrical conductor 1 to be connected.
  • the ends of the two legs 10, 11 each have a fixing portion 13, 14.
  • the attachment portion 13 of the contact leg 10 extends opposite to the insertion of the electrical conductor 1 to be connected through the recess 7 in the plant leg 5.
  • the attachment portion 14 of the retaining leg 11 is located on the recess 7 facing away from the outside of the holding portion 9, so that the attachment portion 14 does not extend through the recess 7 in the plant leg 5.
  • alignment of clamping spring 2 and metal part 3 thus overlaps the attachment portion 14 of the retaining leg 11, the holding portion 9 of the plant leg fifth
  • a locking projection 15 is formed on the mounting portion 14, which engages in the assembled state of clamping spring 2 and metal part 3 in an opening formed in the holding portion 9 opening 16 from above.
  • tilting of the clamping spring 2 in the direction of in Fig. 2 illustrated arrow 17 reliably prevented.
  • a tilting of the clamping spring 2 against the direction of the arrow 17 is prevented by the fact that 11 two stops 18 are formed at the end of the retaining leg, where the plant leg 5 of the clamping spring 2 applies in the properly assembled state.
  • the two stops 18 are arranged at the end of the retaining leg 11 laterally from the mounting portion 14, wherein the mounting portion 14 and the two stops 18 are integrally formed with the holding leg 11, namely bent by a punching and bending operation of the holding leg 11 ,
  • the contact leg 5 of the clamping spring 2 is at an angle ⁇ less than 90 °, preferably at an angle ⁇ of about 75 ° to 85 ° to the contact leg 10 of the metal part 3.
  • the metal part 3 has a plug part 19 which can be plugged into a corresponding socket of a mating plug.
  • a plug part 19 which can be plugged into a corresponding socket of a mating plug.
  • at least one solder pin may be formed on the metal part, so that the electrical terminal can be used as a printed circuit board for printed circuits.
  • the terminal can be mounted directly on a printed circuit board.
  • the metal part instead of a plug part 19, can also have a socket part.
  • the attachment portion 13 of the contact leg 10 is bent such that the attachment portion 13 forms an insertion funnel 20 for the electrical conductor 1 to be connected together with the end 8 of the clamping leg 4.
  • the tip of the electrical conductor to be connected 1 automatically positioned correctly whereby a simple and accurate connection of the conductor 1 to the electrical connection or connection terminal is possible.
  • the clamping spring 2 and the metal part 3 are arranged together in an insulating housing 21, wherein the insulating housing 21 has a conductor insertion opening 22 for insertion of the electrical conductor to be connected 1 and an actuating opening 23 for an actuating tool 24.
  • an actuating tool 24 can be used, for example, the tip of a screwdriver. With the operating tool 24 can - as in Fig. 1 shown - are pressed onto the clamping leg 4 of the clamping spring 2, whereby the clamping spring 2 opens, so that an electrical conductor 1 can be inserted more easily or pulled out of the clamping spring 1.
  • a kink 25 is formed, which is aligned in the direction of the spring force of the clamping leg 4.
  • the tip of the actuating tool 24 can engage, whereby the maximum insertion depth of the actuating tool 24 required to completely open the clamping spring 2 is reduced in the actuating opening 23.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Claims (10)

  1. Borne électrique de raccordement ou de liaison pour le raccordement d'un conducteur électrique (1), comprenant un ressort de serrage (2) et une pièce métallique (3), le ressort de serrage (2) présentant une branche de serrage (4) et une branche d'appui (5),
    un évidement (7) étant réalisé dans la branche d'appui (5) pour enfoncer le conducteur électrique à raccorder (1),
    la branche de serrage (4) et la branche d'appui (5) du ressort de serrage (2) étant cintrées l'une vers l'autre de telle sorte que l'extrémité (8) de la branche de serrage (4) traverse l'évidement (7),
    à l'extrémité de l'évidement (7) éloignée de l'extrémité (8) de la branche de serrage (4), une portion de retenue (9) étant découpée hors de la branche d'appui (5) et étant cintrée dans la direction d'insertion du conducteur électrique à raccorder (1),
    la pièce métallique (3) présentant une branche de contact (10), une branche de retenue opposée (11) et une partie d'âme (12) reliant les branches (10, 11), l'extrémité (8) de la branche de serrage (4) du ressort de serrage (2) et la branche de contact (10) de la pièce métallique (3) formant un raccord de serrage à force de ressort pour le conducteur électrique à raccorder (1), et
    les extrémités des branches de contact et de retenue (10, 11) présentant à chaque fois une portion de fixation (13, 14) et la portion de fixation (13) de la branche de contact (10) s'étendant à l'opposé de la direction d'insertion du conducteur électrique à raccorder (1) à travers l'évidement (7),
    caractérisée en ce que
    la portion de fixation (14) de la branche de retenue (11) s'applique du côté extérieur, opposé à l'évidement (7), de la portion de retenue (9) de la branche d'appui (5).
  2. Borne électrique de raccordement ou de liaison selon la revendication 1, caractérisée en ce que dans l'état monté du ressort de serrage (2) et de la pièce métallique (3), une saillie d'encliquetage (15) réalisée sur la portion de fixation (14) de la branche de retenue (11) vient en prise depuis l'extérieur dans une ouverture (16) réalisée dans la portion de retenue (9).
  3. Borne électrique de raccordement ou de liaison selon la revendication 1 ou 2, caractérisée en ce qu'à l'extrémité de la branche de retenue (11) est réalisée au moins une butée (18), contre laquelle, dans l'état monté du ressort de serrage (2) et de la pièce métallique (3), s'applique la branche d'appui (5) du ressort de serrage (2).
  4. Borne électrique de raccordement ou de liaison selon la revendication 3, caractérisée en ce qu'à l'extrémité de la branche de retenue (11) sont réalisées deux butées (18) qui sont disposées latéralement à distance de la portion de fixation (14), la portion de fixation (14) et les deux butées (18) étant de préférence réalisées d'une seule pièce avec la branche de retenue (11), notamment étant courbées par une opération d'estampage et de cintrage de la branche de retenue (11).
  5. Borne électrique de raccordement ou de liaison selon l'une quelconque des revendications 1 à 4, caractérisée en ce que dans l'état monté du ressort de serrage (2) et de la pièce métallique (3), la branche d'appui (5) du ressort de serrage (2) est disposée suivant un angle α inférieur à 90°, de préférence suivant un angle α de 75° à 85°, par rapport à la branche de contact (10) de la pièce métallique (3).
  6. Borne électrique de raccordement ou de liaison selon l'une quelconque des revendications 1 à 5, caractérisée en ce que dans l'état monté du ressort de serrage (2) et de la pièce métallique (3), l'extrémité (8) de la branche de serrage (4) du ressort de serrage (2) s'applique contre la branche de contact (10) de la pièce métallique (3) de telle sorte que la portion de retenue (9) de la branche d'appui (5) soit pressée contre la portion de fixation (14) de la branche de retenue (11).
  7. Borne électrique de raccordement ou de liaison selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la pièce métallique (3) est connectée à une fiche femelle ou une fiche mâle (19).
  8. Borne électrique de raccordement ou de liaison selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la portion de fixation (13) de la branche de contact (10) est recourbée de telle sorte que la portion de fixation (13) conjointement avec l'extrémité (8) de la branche de serrage (4) forme un entonnoir d'insertion (20) pour le conducteur électrique à raccorder (1).
  9. Borne électrique de raccordement ou de liaison selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le ressort de serrage (2) et la pièce métallique (3) sont disposés dans un boîtier isolant (21), le boîtier isolant (21) présentant une ouverture d'insertion de conducteur (22) pour insérer un conducteur électrique à raccorder (1) et une ouverture d'actionnement (23) pour l'insertion d'un outil d'actionnement (24).
  10. Borne électrique de raccordement ou de liaison selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'une inflexion (25) est réalisée sur la branche de serrage (4), laquelle est orientée dans la direction de la force de ressort de la branche de serrage (4), de sorte que la pointe d'un outil d'actionnement (24) puisse venir en prise avec l'inflexion (25) pour ouvrir le ressort de serrage (2).
EP08758671A 2007-05-25 2008-05-21 Borne électrique de raccordement et de liaison Active EP2162952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007024690A DE102007024690B4 (de) 2007-05-25 2007-05-25 Elektrische Anschluß- oder Verbindungsklemme
PCT/EP2008/004066 WO2008145291A2 (fr) 2007-05-25 2008-05-21 Borne électrique de raccordement et de liaison

Publications (2)

Publication Number Publication Date
EP2162952A2 EP2162952A2 (fr) 2010-03-17
EP2162952B1 true EP2162952B1 (fr) 2012-04-25

Family

ID=39714100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758671A Active EP2162952B1 (fr) 2007-05-25 2008-05-21 Borne électrique de raccordement et de liaison

Country Status (7)

Country Link
US (1) US7896686B2 (fr)
EP (1) EP2162952B1 (fr)
JP (1) JP2010528411A (fr)
CN (1) CN101595603B (fr)
AT (1) ATE555519T1 (fr)
DE (1) DE102007024690B4 (fr)
WO (1) WO2008145291A2 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018105195U1 (de) 2018-09-11 2019-12-12 Wieland Electric Gmbh Schenkelfeder

Also Published As

Publication number Publication date
EP2162952A2 (fr) 2010-03-17
ATE555519T1 (de) 2012-05-15
US7896686B2 (en) 2011-03-01
DE102007024690B4 (de) 2009-06-04
JP2010528411A (ja) 2010-08-19
US20100081346A1 (en) 2010-04-01
WO2008145291A3 (fr) 2009-04-02
DE102007024690A1 (de) 2008-12-04
CN101595603A (zh) 2009-12-02
WO2008145291A2 (fr) 2008-12-04
CN101595603B (zh) 2012-09-05

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