EP0606415B1 - Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux - Google Patents

Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux Download PDF

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Publication number
EP0606415B1
EP0606415B1 EP93911784A EP93911784A EP0606415B1 EP 0606415 B1 EP0606415 B1 EP 0606415B1 EP 93911784 A EP93911784 A EP 93911784A EP 93911784 A EP93911784 A EP 93911784A EP 0606415 B1 EP0606415 B1 EP 0606415B1
Authority
EP
European Patent Office
Prior art keywords
contact
strip
leg
fixed
plug according
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
EP93911784A
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German (de)
English (en)
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EP0606415A1 (fr
Inventor
Eberhard Leipe
Josef Axenböck
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.)
Schaltbau GmbH
Original Assignee
Schaltbau GmbH
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Filing date
Publication date
Application filed by Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP0606415A1 publication Critical patent/EP0606415A1/fr
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Publication of EP0606415B1 publication Critical patent/EP0606415B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/722—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits
    • H01R12/724—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures coupling devices mounted on the edge of the printed circuits containing contact members forming a right angle

Definitions

  • the invention relates to a connector with a pressure contact strip and a front contact strip and with at least one L-shaped bent contact in the plug contact strip made of an electrically conductive sheet metal strip, which has a connection point on a first L-leg and a contact surface on a second L-leg forms, the contact surface of the fixed contact in the inserted state of the pressure contact strip and the front contact strip abutting an associated contact surface of a mating contact in the pressure contact strip, the contact surface of the fixed contact also being inclined at an angle to the direction of insertion of the pressure contact strip and the front contact strip and the tangent of the angle of inclination being greater than the coefficient of friction between fixed contact and counter contact.
  • Connectors of this type are known from DE-U-89 04 676.
  • the second L-leg forms a contact surface and is additionally inclined by an angle which is oriented perpendicular to the 90 ° angle between the two L-legs.
  • the fixed contacts are embedded with their first L-leg in a contact carrier in such a way that connection points protrude on one side of the contact carrier and that on the other side the second L-leg remains outside the contact carrier.
  • the contact surface inclined by the angle represents a slideway for a pressure contact springing in during the plug-in process. The angle is chosen so that optimized sliding conditions for the pressure contact are achieved.
  • the fixed contacts on the contact surface must have a certain width.
  • the metal strips must therefore be wider overall, or the excess width on the first L-leg is removed by punching, which leads to material loss.
  • the assembly of the fixed contacts in the front contact strip is made more difficult by the fact that the fixed contacts have to be threaded into the contact carrier, which can only be done from one side with a previously bent contact surface.
  • This version is very production-intensive and causes a relatively high expense.
  • the angle of inclination lies in a plane which is formed by the two L-legs of the sheet metal strip, and in that the electrically conductive sheet metal strip adjoins the second L-leg and in the direction of the first L-leg has a bent-back extension which is provided with a nose which engages in an undercut of a contact carrier of the front contact strip, and that the first L-leg of the sheet metal strip has a spring catch which projects transversely to the first L-leg, the sheet metal strip being clamped onto the contact carrier between the spring catch and the nose.
  • the fixed contact is made by bending perpendicular to the longitudinal extension of the sheet metal strip.
  • the use of roll clad material is no longer required.
  • the pressure contacts slide in the direction of the longitudinal extent of the metal strips on the contact surface. The contact area can thus be extended as desired without the insulation gap between the sheet metal strips being too small. The width of the metal strips can also be minimized because it does not depend on the relative movement between the contacts.
  • a great simplification for the assembly of the fixed contact on the contact carrier is that the sheet metal strip can be clamped onto the contact carrier.
  • the right-angled approach and the bead at its end can be produced together with the two L-legs by a bending process in one plane, which simplifies the production.
  • the sheet metal strip is hooked into the undercut on the contact carrier with the nose and then pressed into the guideway, the spring catch snapping onto an edge of the contact carrier.
  • the fixed contact is thus positioned in the simplest way.
  • the spring catch is preferably formed by a U-shaped punching in the first L-leg, the web enclosed by the U-shape protruding transversely to the first L-leg. The spring catch is thus simplified made from part of the first L-leg.
  • the front contact strip is preferably provided with a plurality of fixed contacts which are arranged in parallel on the contact carrier in guideways and isolated from one another by partition walls.
  • the sheet metal strips can be connected to one another at their connection points, which are likewise made in one piece with them, by a holding strip.
  • the holding strip offers good positioning options and therefore precise manufacture.
  • a major advantage of the retaining strip is that you can now clamp all the fixed contacts protruding from it on the contact carrier at once. With the same hand or machine handle as for a fixed contact, all fixed contacts can now be arranged on the contact carrier in the same time.
  • the holding strip is then simply cut off at the connection points.
  • the clamping force of the fixed contacts on the contact carrier is dimensioned such that the separation of the holding strips has no influence on the holding of the sheet metal strips.
  • the fixed contacts are clamped onto the contact carrier with a slight bias.
  • the pretension is achieved in that the fixed contacts in the area of the apex of their L-angle do not lie against the base of the guideway and are elastically deformable there.
  • a clamping force is applied in the direction of the first L-bar.
  • the elastic spring effect of the fixed contact also compensates for larger manufacturing tolerances.
  • the contact carrier of the front contact strip is preferably made in one piece from plastic. This design saves costs and manufacturing effort.
  • spring-loaded pressure contacts as counter contacts has a great advantage.
  • the spring travel can then be selected so that the best possible sliding conditions from the mating contact are present on the contact surfaces of the fixed contacts.
  • Pressure contact strips with a wide variety of spring systems can be used, which has the additional advantage that a pressure contact strip can also be replaced by a variant with a different spring system.
  • the electrically conductive metal strips are additionally provided with a gold layer by electrolytic deposition.
  • connection points of the fixed contacts preferably protrude on the contact carrier and are designed as solder connections. By clamping the fixed contacts on the contact carrier, the metal strips are excellently positioned for the soldering process.
  • connection points of the fixed contacts are designed as solderable pressure contacts.
  • the connection points can then either be soldered or used as pure pressure contacts.
  • the entire connector consists of a pressure contact strip 3 and the front contact strip 1 just mentioned.
  • Spring-loaded pressure contacts 4 are arranged in the pressure contact strip 3 in accordance with the number of fixed contacts 2 of the plug contact strip 1, which, when plugged in, rest with a contact surface B on a contact surface A of the pressure contacts 4 .
  • the front contact strip 1 has a contact carrier 6 made in one piece from plastic.
  • the contact carrier 6 is an elongated body which has 7 assembly eyes at its ends in order to fasten the front contact strip 1 to a base plate with the aid of connecting elements.
  • guide pins 8 are arranged on the contact carrier 6.
  • Legs 9, which run at right angles, are arranged on the contact carrier 6 free ends protrude in the same direction as the guide pins 8 on the contact carrier 6 and are provided with locking elements 10.
  • a printed circuit board 11, which has corresponding insertion openings for the latching elements 10 and the guide pin 8, is plugged into the front contact strip 1.
  • In the front contact strip 1 there are receiving bores 12 and 13 which receive corresponding centering pins 14 and 15 of the pressure contact strip 3 when plugged in.
  • the contact carrier 6 On one side, the contact carrier 6 has a material accumulation 17 which can be used to receive a coaxial plug connection by means of a stepped bore 16.
  • the middle part of the front contact strip 1 is provided with guide tracks 18, some of which run along the circumference of the contact carrier 6 and are delimited from one another by separating webs 19.
  • the number of guideways 18 corresponds to the number of fixed contacts 2 in the front contact strip 1 and the number of mating contacts in the pressure contact strip 3. Electrically conductive sheet metal strips 20, which form the fixed contacts 2, are hooked into the guideways 18.
  • the fixed contacts 2 consist of an approximately L-shaped sheet metal strip 20, which has a curved connection point C in the form of a soldering tongue 21 on a first L-leg 24 and is provided with a U-shaped punching 22 approximately in the middle.
  • a web which remains in the middle of the sheet metal strip 20 due to the U-shaped punching 22, is bent as a spring catch 23 at an angle transverse to the first L-leg 24.
  • a second L-leg 25, the outward-facing surface of which represents the contact surface B, is provided at its free end with a projection 26 bent back approximately at a right angle.
  • the extension 26 has at its end a nose 27 which engages in an undercut 28 on the contact carrier 6.
  • the fixed contacts 2 are largely due to the Guideways 18 and are clamped onto the plug contact strip 1 with the spring catches 23, which are supported on a contact carrier edge 34.
  • the guideways 18 are provided with a different inclination than the fixed contacts 2. This creates a cavity 29 between sheet metal strips 20 and the bottom of the guideway 18.
  • connection point C protrudes with the connection point C over the contact carrier edge 34. Soldering tongues 21 of the connection points C sit on corresponding conductor track contacts of the printed circuit board 11 and are soldered to them. If the circuit board 11 is clamped between the base plate and the front contact strip 1, the connection points C can only be pressed onto the conductor track contacts of the circuit board 11 to make contact.
  • the pressure contact strip 3 has a thickening 30 on one side, which can accommodate a coaxial connector by means of a stepped bore 16.
  • the thickening 30 of the plug 3 and the material accumulation 17 of the plug contact strip 1 face each other, so that the bores 16 are aligned with one another.
  • the mounting of the fixed contacts 2 is considerably simplified by a holding strip 31.
  • This holding strip 31 is connected in one piece to the connection points C of the fixed contacts 2.
  • the fixed contacts 2 are then arranged parallel to each other from the holding strip 31, which are provided with recesses 32 and pilot holes 33 in extensions of each fixed contact 2.
  • All fixed contacts 2 are hooked together in a hand or machine handle with the lugs 27 into the undercuts 28 and pressed into the guideways 18 so that the spring catches 23 snap onto the contact carrier edge 34.
  • the elastic resilience of the fixed contact 2 proves to be advantageous due to the lack of contact with the guideway 18 in the region of the cavity 29.
  • a preload can also be applied to the fixed contacts 2, which causes a greater clamping effect.
  • the holding strip 31 also serves as a mounting bar when the fixed contacts 2 are inserted. Then the holding strip 31 can be separated without the fixed contacts 2 becoming loose.
  • the cut-off 32 makes it easy to separate the holding strip 31.
  • the pressure contacts 4 are fully extended and protrude in the direction of insertion D of the pressure contact strip 3.
  • the pressure contact strip 3 is guided in this process with its centering pins 14 and 15 in the receiving bores 12 and 13 in a straight line in the plug-in direction D.
  • the Pressure contact 4 deflects at an angle to the plug-in direction D and must therefore additionally carry out a transverse movement which causes the contact surface A to slide along the contact surface B.
  • the contact surface B of the fixed contact 2 is inclined at an angle ⁇ to the direction of insertion D.
  • the angle ⁇ is chosen so that the sliding along is favored. So that in addition to the cleaning sliding along the contact surface A on the contact surface B the contact transition is improved, both the fixed contact 2 and the pressure contact 4 are provided with a gold layer.
  • spring-supported pressure contacts 4 it is not absolutely necessary to design the spring-supported pressure contacts 4 as a stamped and bent part. In embodiments with spring-supported and cylindrical bores made pressure contacts, care must be taken that the sliding movement then mostly takes place in the plug-in direction D.
  • the front contact strip 1 is suitable for different variants of pressure contact strips. Different pressure contact systems and / or fixed contacts can be used in the respective variant.
  • the front contact strip 1 is then to be adapted to the geometry of the pressure contact variant.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

L'invention concerne un connecteur à fiches comportant une réglette à contacts convexes et une réglette à contacts frontaux et au moins un contact fixe courbé en forme de L, réalisé dans une lamelle en tôle électroconductrice, qui comporte un point de raccordement sur une première branche du L et qui forme une surface de contact sur la seconde branche du L. La surface de contact du contact fixe appuie sur une surface de contact correspondante d'un contre-contact dans la réglette à contacts convexes, lorsque la réglette à contacts convexes et la réglette à contacts frontaux sont enfichées. En outre, la surface de contact du contact fixe est inclinée à un angle pivotant vers le sens d'enfichage de la réglette à contacts convexes et de la réglette à contacts frontaux et la tangente de l'angle d'inclinaison est supérieure au coefficient de friction entre le contact fixe et le contre-contact. L'invention a pour objet de réaliser une conception simplifiée et économique de la prise de courant, notamment des contacts fixes, pour un connecteur à fiches du type de celui décrit au début, ayant un bon mouvement relatif pendant l'enfichage. C'est possible par le fait que l'angle d'inclinaison se trouve dans un plan formé par les deux branches du L de la lamelle en tôle et que ladite lamelle en tôle électroconductrice comporte une saillie jouxtant la seconde branche du L et recourbée en direction de la première branche du L qui est munie d'un ergot qui s'engage dans une contre-dépouille d'un support de contacts de la prise de courant, et que la première branche du L de la lamelle en tôle comporte un cran d'arrêt à ressort qui fait saillie transversalement par rapport à la première branche du L, la lamelle en tôle étant connectée sur le support de contacts entre le cran d'arrêt à ressort et l'ergot, tout en entourant ces deux derniers.

Claims (12)

  1. Connecteur comprenant une réglette à contacts frontaux et une réglette à contacts convexes (3) ainsi qu'au moins un contact fixe (2), cintré en forme de L, réalisé, dans la réglette de contacts frontaux (1), à partir d'une bande de tôle (20) conductrice d'électricité, ce contact fixe ayant une première branche du L (24) avec un point de branchement (C) et sur la seconde branche du L (25), une surface de contact (B), la surface de contact (B) du contact fixe (2) s'appuyant à l'état engagé de la réglette à contacts convexes (3) et de la réglette à contacts frontaux (1) contre une surface de contact associée (A) d'un contact antagoniste dans la réglette à contacts convexes (3) ; et en outre la surface de contact (B) du contact fixe (2) est inclinée suivant un angle (β) par rapport à la direction d'engagement (D) de la réglette à contacts convexes (3) et de la réglette à contacts frontaux (1) et la tangente de l'angle d'inclinaison (β) est supérieure au coefficient de frottement entre le contact fixe (2) et le contact opposé, connecteur caractérisé en ce l'angle d'inclinaison (β) est situé dans un plan passant par les deux branches de la forme de L (24, 25) de la bande de tôle (20), et en ce que la bande de tôle conductrice électrique (20) comporte un prolongement (26) faisant suite à la seconde branche (25) sous la forme de L et qui est repliée en direction de la première branche sous la forme de L (24), ce prolongement étant muni d'un bec (27) venant prendre dans la partie à contre-dépouille (28) d'un support de contact (6) de la boîte (1), et la première branche (24) de la forme de L de la bande de tôle (20) comporte une languette d'accrochage (23) élastique qui est en saillie transversalement à la première branche (24) de la forme de L, la bande de tôle (20) entourant le support de contact (6) entre la languette d'accrochage élastique (23) et le bec (27) en étant pincée sur ceux-ci.
  2. Connecteur selon la revendication 1, caractérisé en ce que la languette d'accrochage élastique (23) fait corps avec la bande de tôle (20) et est formée par un matriçage en U (22).
  3. Connecteur selon la revendication 1 et 2, caractérisé en ce que le bec (27) est formé par une moulure à l'extrémité du prolongement (26) de la bande de tôle (20).
  4. Connecteur selon l'une des revendications 1 à 3, caractérisé par plusieurs contacts fixes (2) disposés parallèlement sur le support de contact (6) et dont la première branche (24) de la forme en L est tournée dans la direction d'engagement (D).
  5. Connecteur selon la revendication 4, caractérisé en ce que les contacts fixes (2) sont chaque fois situés dans un chemin de guidage (18) du support de guidage (6) et sont isolés les uns des autres par des cloisons (19).
  6. Connecteur selon les revendications 4 et 5, caractérisé en ce que les bandes de tôle (20) sont reliées au niveau de leur point de branchement (C) par une bande de tôle (31) qui peut être séparée.
  7. Connecteur selon les revendications 4 à 6, caractérisé en ce que dans le chemin de guidage (18) du support de contact (6), dans la zone de liaison des deux branches (24, 25) en forme de L, on a formé une cavité (29).
  8. Connecteur selon les revendications 1 à 7, caractérisé en ce que le support de contact (6) de la réglette de contact est réalisé en une seule pièce en matière plastique.
  9. Connecteur selon les revendications 1 à 8, caractérisé en ce que les contacts opposés sont réalisés dans la réglette à contacts convexes sous la forme de contacts de pression ou convexes (4), soutenus élastiquement.
  10. Connecteur selon l'une des revendications 1 à 9, caractérisé en ce que les bandes de tôle conductrices d'électricité sont munies d'une couche d'or appliquée par électrolyse.
  11. Connecteur selon l'une des revendications 1 à 10, caractérisé en ce que les points de branchement C des contacts fixes (2) sont des pattes à souder.
  12. Connecteur selon l'une des revendications 1 à 10, caractérisé en ce que les points de branchement C des contacts fixés (2) sont des contacts de pression sans soudure.
EP93911784A 1992-08-06 1993-04-29 Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux Expired - Lifetime EP0606415B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9210552U DE9210552U1 (de) 1992-08-06 1992-08-06 Steckverbinder mit einer Druckkontaktleiste und einer Stirnkontaktleiste
DE9210552U 1992-08-06
PCT/EP1993/001036 WO1994003945A1 (fr) 1992-08-06 1993-04-29 Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux

Publications (2)

Publication Number Publication Date
EP0606415A1 EP0606415A1 (fr) 1994-07-20
EP0606415B1 true EP0606415B1 (fr) 1996-07-03

Family

ID=6882419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93911784A Expired - Lifetime EP0606415B1 (fr) 1992-08-06 1993-04-29 Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux

Country Status (4)

Country Link
EP (1) EP0606415B1 (fr)
DE (2) DE9210552U1 (fr)
FI (1) FI941584A (fr)
WO (1) WO1994003945A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100401184B1 (ko) * 2001-01-18 2003-10-10 바이오리플라 주식회사 폴리우레탄 생붕괴성 캡슐 및 그 제조방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875863A (en) * 1988-04-11 1989-10-24 Amp Incorporated Electrical device having improved leads for surface mounting on a circuit board
US4915636A (en) * 1988-07-25 1990-04-10 Dynatech Labs, Inc. Card guide with electrical contacts

Also Published As

Publication number Publication date
EP0606415A1 (fr) 1994-07-20
DE59303137D1 (de) 1996-08-08
WO1994003945A1 (fr) 1994-02-17
FI941584A (fi) 1994-06-06
FI941584A0 (fi) 1994-04-06
DE9210552U1 (de) 1993-12-09

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