EP0606414A1 - 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.

Info

Publication number
EP0606414A1
EP0606414A1 EP93911782A EP93911782A EP0606414A1 EP 0606414 A1 EP0606414 A1 EP 0606414A1 EP 93911782 A EP93911782 A EP 93911782A EP 93911782 A EP93911782 A EP 93911782A EP 0606414 A1 EP0606414 A1 EP 0606414A1
Authority
EP
European Patent Office
Prior art keywords
pressure contact
strip
connector according
contact
pressure
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
EP93911782A
Other languages
German (de)
English (en)
Other versions
EP0606414B1 (fr
Inventor
Eberhard Leipe
Josef Axenboeck
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
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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP0606414A1 publication Critical patent/EP0606414A1/fr
Application granted granted Critical
Publication of EP0606414B1 publication Critical patent/EP0606414B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit

Definitions

  • the invention relates to a connector with a pressure contact strip and a front contact strip and with in the pressure contact strip displaceably arranged to the plug direction of the spring-loaded pressure contacts, which are pushed back in the inserted state of the pressure contact strip and the front contact strip against the direction of action of the spring and approximately with their end face on accordingly assigned fixed counter contacts in the face contact strip, the contact surface between the face of a pressure contact and the face of the assigned counter contact being oriented at an angle of inclination to the parting plane between the pressure contact strip and plug contact strip, the tangent of the angle of inclination being greater than the coefficient of friction between the pressure contact and counter contact .
  • Such a connector is known from DE-GM 89 04 676. It is a connector that has inclined, spring-loaded pressure contacts in the pressure contact strip in the direction of insertion. When the pressure contact strip and the front contact strip are plugged together, a relative movement takes place along the contact surface between the end surface of the pressure contact and the fixed counter contact. The sliding together of the end face of the pressure contact and the end face of the counter contact takes place because the direction of deflection of the pressure contact is at an angle to the direction of insertion of the pressure contact strip. The pressure contacts deflect more than for the plugging process would be necessary. Compensation must take place via a transverse movement relative to the counter-contact surface, which is carried out simultaneously by the pressure contact.
  • the pressure contacts are guided in cylindrical bores, which are arranged obliquely to the direction of insertion of the pressure contact strip in the contact carrier, and are pressed against the end face of the mating contact by a spiral spring, which is supported on the pressure contact and contact connection.
  • a disadvantage of this connector is that the pressure contacts, the connection point and the coil spring form a component consisting of several individual parts.
  • the intended use of these connectors requires small dimensions of the socket and connector housing. As a result, the manufacture and assembly of the individual parts must take place within narrow tolerances. This component causes a relatively high cost and manufacturing costs.
  • the coil springs are always pretensioned, which exerts a load on the connector housing even when the pressure contact strip is plugged in. Furthermore, oblique holes in the contact carrier are associated with a high production wall and costs.
  • the pressure contacts in the pressure contact strip are formed at the free end of transversely to their longitudinal extent and transversely to the direction of insertion of the pressure contact strip electrically conductive strips, which merge into connection points at the other end and of at least one in a contact carrier Druck ⁇ contact strip clamped on one side of the spring tongue are held, whereby the pressure contacts are guided resiliently against the plugging direction of the pressure contact strip approximately on a circular path around the clamping point of the spring tongue.
  • the relative movement of the end face of the pressure contact to the end face of the counter contact is achieved by guiding the pressure contact on an approximate circular path.
  • the pressure contact When plugged in, the pressure contact recedes on an approximate circular path in the direction of the connector housing.
  • the spring deflection is therefore longer due to the curved path than the path for the pressure contact strip during the plugging process. Compensation also takes place here via a transverse movement along the counter contact. With a corresponding design of the counter contact, the glide path along the counter contact can even be increased in this solution.
  • the pressure contact is connected to the connection point via electrically conductive strips which form the pressure contact at their ends on one side and the connection points on the other side. These electrically conductive strips can have almost any arrangement in the contact carrier.
  • the electrically conductive strips and the spring tongues are formed in one piece.
  • the assembly of spring tongue and electrically conductive Strip is preferably designed as a stamped and bent part. This is particularly cost-effective and simplified to produce, since only a few work steps are required to design this simple profile.
  • the electrically conductive strips are guided along the outside of the sheet metal strips. Since the sheet metal strip is made of metal due to the better spring action, the electrically conductive strips are usually applied electrolytically. It is also conceivable that the assembly is made of a highly conductive material, which then takes over the task of the electrically conductive strip.
  • each pressure contact strip usually has a plurality of pressure contacts, which protrude in parallel from openings in the contact carrier.
  • the sheet metal strip is placed in the back of the contact carrier in a guide provided in each case.
  • the contact carrier with the inserted metal strips is closed by a cover.
  • the cover is preferably connected to the contact support in a non-positive and positive manner by means of tapered pins and / or taper bores in the contact support and / or cover. In order to additionally prevent displacement of the spring tongue, this has a recess at the clamping point, which engages in a suitable, projecting profile piece on the contact carrier.
  • the strip housing can be on a Fasten the circuit board.
  • the locking elements are preferably connected in one piece to the strip housing and made of the same material.
  • the connection points are usually designed as solderable connections which are connected to corresponding counterparts on the circuit board.
  • a further embodiment of the solution takes advantage of the known MID technology (Molded Interconnection Device), which can best be described as a "method for structuring three-dimensional contact trains".
  • MID technology Molded Interconnection Device
  • the essence of the matter is that a plastic surface is specifically inoculated with palladium seeds and copper is deposited around these seeds in a wet chemical process. The plastic surface becomes conductive at these points through the copper.
  • a second layer (made of nickel and another layer made of gold) is deposited over the copper layer.
  • a simple design is to keep the contact carrier and only adapt the cover to the new technology.
  • the cover is provided with an opening into which ridges extend, which are bent at their free end and provided with a material accumulation.
  • This lid is easy to manufacture by injection molding.
  • electrically conductive strips are applied to the outside of the cover and the webs, which bear the pressure contact in the tip area of the material accumulation of the web.
  • the spring characteristic of the pressure contact is achieved by a spring tongue inserted into a receptacle of the material accumulation.
  • Spring tongues can be used here, which either extend in one piece over the entire width of the webs or are designed individually for each web.
  • the spring tongue engages in the material accumulation at a distance from the electrically conductive strips in order to avoid electrical contact.
  • the connection points of the electrically conductive strips can also be arranged on the cover.
  • MID technology Another advantage of MID technology is that it is possible to manufacture the cover and the circuit board connected to it in one piece.
  • the contact carrier no longer has to be plugged onto a separate circuit board.
  • the extended cover part is the base plate for the contact carrier.
  • a version with tongue connection is possible. It is also conceivable to pass on the contact by designing the connection points as mating contacts for pressure contacts of a pressure contact strip which is arranged on a base circuit board.
  • This connection variant also has the advantage that larger tolerances are permissible.
  • a film hinge can be arranged between the cover and the printed circuit board.
  • FIG. 1 shows a first embodiment example of the pressure contact strip according to the invention in front view
  • FIG. 3 shows a spring tongue of the pressure contact strip from FIG. 1,
  • FIG. 4 shows a force-displacement diagram of the spring tongue from FIG. 3,
  • FIG. 6 shows a second exemplary embodiment of a pressure contact strip according to the invention in the plugged-in state with a film plug connection, similar to the view from FIG. 5,
  • FIG. 7 is a film with a lid as a frame of the pressure contact strip from FIG. 6,
  • FIG. 8 in a view similar to FIG. 7, a variant of the cover for a connector according to FIG. 6,
  • FIG. 9 shows a side view of a pressure contact strip according to FIG. 6 with a first connection variant as a tongue connection
  • 10 is a pressure contact strip shown in a view similar to FIG. 9 with a second connection variant as a pressure contact connection, and 11 shows a pressure contact strip shown in a view similar to FIG. 9 with a third connection variant as a soldered connection part.
  • a first embodiment of a connector according to the invention in particular a pressure contact strip 1, is shown.
  • the connector consists of the pressure contact strip 1 and a front contact strip 2.
  • counter contacts 3 are arranged corresponding to the number of pressure contacts 4 of the pressure contact strip 1, which, when plugged in, abut an end face A against an end face B of the pressure contact 4.
  • the pressure contact strip 1 has a strip housing 5 made of plastic, which is composed of a contact carrier 6 and a cover 7. On one side, the strip housing 5 has a contour 8 which extends almost over the entire longitudinal side of the strip housing 5 and which projects in an elevated manner. On their side directed in the direction of insertion C there are a guide pin 9 and a tapered guide pin 10 flattened on two jacket sides. The guide pin 9 and the guide pin 10 are enclosed in the inserted state by corresponding receptacles on the front contact strip 2. Contrary to the plug direction C, two slightly tapered guide pins 12 are arranged on the plug housing 5, by means of which the pressure contact strip 1 is positioned on a base plate.
  • At least two slightly tapered guide holes 11 are located in the strip housing 5 to accommodate corresponding plug pins of the cover 7.
  • two legs 13 extending at right angles are attached, on the free ends of which point against the insertion direction C there is in each case a latching element 14, which extends into an insertion opening 15 is used in a circuit board 16.
  • the contact carrier 6 there are narrow elongated cavities 17, the number of which is equal to the number of pressure contacts 4 and becomes deeper in the plug-in direction C.
  • These cavities 17 are isolated from one another by a narrow separating turn 18 and are largely closed by the cover on the side facing away from the insertion direction C. In the insertion direction C, the cavities 17 are open and form openings 19 in the raised contour 8.
  • Bent metal strips 20 are inserted into the cavities 17.
  • the sheet metal strips 20 have at one end a connection point D which has a shape corresponding to the type of connection.
  • the straight part of the sheet metal strip 20, which is located at the connection point D is provided with a rectangular recess 21.
  • This straight part of the sheet metal strip 20 is adjoined by an elongated part which is bent at an angle ⁇ .
  • the elongated and the straight part with the recess 21 form a spring tongue 22.
  • the spring tongues 22 are laterally guided in the cavities 17 of the contact carrier 6 through the partitions 18.
  • the flat end of the cavities 17 facing away from the openings 19 has a profile piece 23 which engages in the recess 21 and does not permit incorrect insertion of the spring tongue 22 and anchors it immovably.
  • the cavity 17 points in the area of the profile piece
  • the spring tongue 22 is pressed into the guideway in the region of its straight part, which serves as the clamping point E, by the pressed-on cover 7
  • connection points D are then outside of the connector housing 5 next to the clamping point.
  • the depth of the cavities 17 increases in the front region as a function of the angle a, so that when the metal strips 20 are inserted, the latter partially rest on the contact carrier 6 with their bent, elongated part.
  • a second contact point F of the resilient part of the spring tongue 22 on the contact carrier 6 additionally positions the sheet metal strip 20.
  • a spring direction G of the spring tongue 22 is finally determined by the contact point F.
  • the sheet metal strip 20 is bent away approximately at a right angle and then bent back approximately U-shaped.
  • This curved extension at the end of the spring tongue 22 carries the pressure contact 4, the U-web forming the end face B of the pressure contact 4.
  • the U-web has an inclination which is adapted to the inclination of the end face A of the mating contact.
  • a punctiform elevation 25 is located on the end face B of the pressure contact 4.
  • the U-shaped profile carrying the pressure contact 4 protrudes from the openings 19 in the strip 8 so that the free leg of the U-shaped profile still remains in the connector housing 5.
  • the bent sheet metal strips 20 are mostly made of conductive spring material. With an electrolytic process, 20 electrically conductive strips 28 are applied to the longest side of the bent sheet metal strips facing outward. In addition, a gold layer is applied to the end face B of the pressure contact 4.
  • the cover 7 has at its end closest to the spring tongue 22 an inclination, which is provided at its end with a plurality of lugs 26, which are each opposite a cavity 17 and are made in the same width as the cavity 17.
  • the otherwise essentially symmetrical connector housing 5 has a widening which offers space for a stepped bore 27 which can accommodate a stepped coaxial connector.
  • the pressure contact strip 1 engages with its guide pins 12 in the printed circuit board.
  • the face contact strip 2 is also fixed in its position during the plugging process.
  • the pressure contact strip 1 and the front contact strip 2 are guided by the guide pin 9 and the guide pin 10 on the pressure contact strip 1 and the corresponding receptacles on the front contact strip 2 in the plug-in direction C during the plugging process.
  • the force-displacement diagram in FIG. 4 clearly shows the movement process of the pressure contact 4 and the spring tongue 22 during the plugging process. It does not matter whether the clamping point E or the end face B of the pressure contact 4 is assumed to be stationary in this consideration.
  • the pressure contact 4 is in the insertion direction C. approximately the preliminary total path H back.
  • the spring tongue 22 is designed such that a prestress K is established in the plug-in direction C after the cover 7 has been put on.
  • the total path L in the plugging direction C is thus available for the plugging processes, and the angle ⁇ is reduced to the new angle ⁇ '.
  • the total path L relevant for most plug-in operations is divided into a preload path M and a working stroke N.
  • the preload path M is dimensioned such that the end face B of the pressure contact 4 presses on the end face A of the mating contact 3 with a certain minimum pressure.
  • the pressure contact In the remaining working stroke N, the pressure contact simultaneously executes a transverse movement P.
  • the actual resulting path of the pressure contact 4 leads along an approximate circular path R around the clamping point E. Since the spring tongue 22 does not rotate about the clamping point E, but curves along the bending line around the clamping point E, the resulting path of the pressure contact 4 does not lie on an exact circular path.
  • the transverse movement P is converted into a wiping movement of the pressure contact 4 along the counter contact 3.
  • the mating contact 3 has the orientation and shape of part of the approximate circular path R. Given the small dimensions of the connector, the transverse movement P is also a relatively small quantity. As a result, an alignment and shape of the mating contact 3 as part of a tangent to the approximate circular path R of the pressure contact 4 is sufficient.
  • connection points D are designed as soldering tongues which are soldered to conductor tracks on the printed circuit board 16.
  • FIG. 6 to 11 show a second embodiment of the connector according to the invention, in particular the pressure contact strip 1.
  • Components which do not change compared to the first embodiment are provided with the same reference numerals.
  • the cover 7 has been reshaped and extended so that it can also take over the function of the printed circuit board 16 from the embodiment.
  • the cover 7 has plug pins 29 which are inserted into the guide holes 11 of the contact carrier 6. Sockets 30 on the cover 7 are intended for receiving corresponding counterparts on the contact carrier 6.
  • a window 31 is located approximately in the middle between the sockets 29 and the plug pin 30.
  • the cover 7 has two bulges 32 which lead past the guide pins 12.
  • the cover 7 has a frame-like extension 34 with an opening 33. In the frame-like extension 34, insertion openings 15 are introduced, which are intended for receiving the latching elements 14 of the contact carrier.
  • a bridge 35 is arranged between window 31 and opening 33.
  • the MID technology (Molded Interconnection Device) is used to produce a film 36 made of plastic, at one end of which webs 37 thick in thickness are arranged corresponding to the number of pressure contacts 4.
  • the distance from web 37 to web 37 corresponds approximately to the thickness of the partition walls 18 in Contact carrier 6 and the width of the webs 37 approximately the width of the cavities 17.
  • the webs 37 are angled in an L-shape and have a material accumulation 38 at their free end.
  • the material accumulation 38 is shaped like an elongated, filled-in U, with a U-web which has an inclination.
  • a receptacle 39 is introduced in the side of the material accumulation 38 which points in the direction of the webs 37.
  • the film 36 is inserted lengthways through the opening 33 of the cover 7 such that the webs 37 with the material accumulations 38 lie in the window 31 and the material accumulations 38 each protrude into a cavity 17 in the contact carrier 6.
  • the material accumulations 38 are held in position by the spring tongue 22 which engages in the receptacle 39.
  • the guide track 24 of the clamping point E of the spring tongues 22 is covered by the bridge 35 on the cover 7.
  • the connection points D are arranged at the other end of the film 36.
  • electrically conductive strips 28 made of gold are applied to the outside T of the foil 36.
  • the electrically conductive strips 28 connect the connection points D and the pressure contact 4, which is arranged on the material accumulation 38.
  • the electrically conductive strips 28 thus run along the outside of the webs 37 and enclose the material accumulation 38 until shortly before the receptacle 39.
  • the distance and the width of the electrically conductive strips 28 are equal to the distance and the width of the webs 37.
  • the connection points D have a foil plug 40 which is inserted into a mating connector 42 arranged on a base circuit board 41.
  • FIG. 8 shows a second variant of a cover 7 of the pressure contact strip 1.
  • This variant is also manufactured using MID technology.
  • the cover 7 is connected in one piece to the printed circuit board 16.
  • the connection points which are designed as solderable connections, are arranged on the end of the cover 7 facing away from the pressure contact 4.
  • the webs 37 are connected to the longitudinal side of the window 31 facing the connection point D.
  • the webs 37 with the material accumulations 38 located at their free ends and the receptacles 39 can be produced in one piece together with the cover 7 by injection molding.
  • the electrically conductive strips 28 are arranged on the outside S of the cover 7. Therefore, this variant does not have an opening 33 like the first variant.
  • the arrangement of the spring tongue 22 is retained.
  • the cover 7 is formed into a film hinge 43 in the area of the dash-dotted line U, so that the connection points D can be arranged at different angles.
  • Fig. 9 shows a first connection variant of the second embodiment of a connector, in which the connection points D are designed as plug tongues 44 which engage in a corresponding socket 45 which is arranged on a base circuit board 41.
  • connection 10 shows a second connection variant which has pressure connections 46 which are arranged in a connector 47 connected to a base circuit board 41 and are placed on conductor contacts 48 of the connection points D.
  • Fig. 11 shows a third connection variant, in which a connector 47 is placed on the connection points D and is soldered to the connection points D.
  • the operation of the second embodiment is the same as that of the first embodiment.
  • the difference is that the pressure contact 4 is not integrally connected to the spring tongue 22 and the pressure contact 4 is electrically isolated from the spring tongue 22. Due to the MID technology, the electrically conductive strips 28 can be arranged as desired between connection points D and pressure contact 4.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

Afin d'obtenir que dans un connecteur à fiches dont la réglette à contacts convexes comporte des contacts convexes, le contact convexe passe le long du contre-contact pendant l'enfichage de la fiche à contacts convexes et de la fiche à contacts frontaux, le contact convexe a été placé à l'extrémité d'une lame flexible tendue d'un côté. Pendant l'enfichage, les contacts convexes sont amenés dans une trajectoire à peu près circulaire autour du point de tension de la lame flexible. La connexion électrique entre le point de raccordement et le contact convexe s'effectue avec des lamelles électroconductrices. L'invention concerne notamment deux modes de réalisation fondamentalement différents: d'une part une conception sous forme de composant, avec le point de raccordement, la lame flexible, les lamelles électroconductrices et le contact convexe dans une unité; d'autre part une conception à l'aide de la technique MID (molded interconnection device) où les lamelles électroconductrices sont appliquées sur le plastique du couvercle ou d'une pellicule.
EP93911782A 1992-08-06 1993-04-27 Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux Expired - Lifetime EP0606414B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9210551U 1992-08-06
DE9210551U DE9210551U1 (de) 1992-08-06 1992-08-06 Steckverbinder mit einer Druckkontaktleiste und einer Stirnkontaktleiste
PCT/EP1993/001017 WO1994003946A1 (fr) 1992-08-06 1993-04-27 Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux

Publications (2)

Publication Number Publication Date
EP0606414A1 true EP0606414A1 (fr) 1994-07-20
EP0606414B1 EP0606414B1 (fr) 1996-11-06

Family

ID=6882418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93911782A Expired - Lifetime EP0606414B1 (fr) 1992-08-06 1993-04-27 Connecteur a fiches comportant une reglette a contacts convexes et une reglette a contacts frontaux

Country Status (3)

Country Link
EP (1) EP0606414B1 (fr)
DE (2) DE9210551U1 (fr)
WO (1) WO1994003946A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9407499U1 (de) * 1994-05-05 1995-09-07 Itt Composants Et Instruments, Dole Cedex Elektrisches Kontaktelement
DE10108092B4 (de) * 2001-02-19 2007-01-04 Carl Freudenberg Kg Verfahren zur Herstellung eines Tuftingträgers
DE102011052792B4 (de) 2011-08-18 2014-05-22 HARTING Electronics GmbH Isolierkörper mit Schirmkreuz
DE102012022004B3 (de) * 2012-11-12 2014-02-06 HARTING Electronics GmbH Isolierkörper mit Schirmkreuz
DE102021130460A1 (de) 2021-11-22 2023-05-25 Valeo Schalter Und Sensoren Gmbh Bildsignalerzeugungsvorrichtung, Head-up-Display und Verfahren zur Montage eines Head-up-Displays

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1790282A1 (de) * 1961-12-12 1973-08-16 Burndy Corp Schaltelement oder schaltgeraet zur elektrischen kontaktierung mit einer schaltungsplatte
GB1033247A (en) * 1964-04-15 1966-06-22 Pressac Ltd An electric connector for use with printed circuit boards
US3701071A (en) * 1971-01-18 1972-10-24 Berg Electronics Inc Hinge type circuit board connector block
US4072387A (en) * 1976-02-20 1978-02-07 Spectra-Strip Corporation Multiple conductor connector unit and cable assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9403946A1 *

Also Published As

Publication number Publication date
DE59304421D1 (de) 1996-12-12
EP0606414B1 (fr) 1996-11-06
WO1994003946A1 (fr) 1994-02-17
DE9210551U1 (de) 1993-12-09

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