EP0110187A1 - Elastic press-fit pin for the solderless connection of wire wrapping posts of electric plug connectors with plated through-holes circuit boards, and method for its manufacture - Google Patents

Elastic press-fit pin for the solderless connection of wire wrapping posts of electric plug connectors with plated through-holes circuit boards, and method for its manufacture Download PDF

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Publication number
EP0110187A1
EP0110187A1 EP83111005A EP83111005A EP0110187A1 EP 0110187 A1 EP0110187 A1 EP 0110187A1 EP 83111005 A EP83111005 A EP 83111005A EP 83111005 A EP83111005 A EP 83111005A EP 0110187 A1 EP0110187 A1 EP 0110187A1
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EP
European Patent Office
Prior art keywords
profile
press
side parts
section
elastic
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
EP83111005A
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German (de)
French (fr)
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EP0110187B1 (en
Inventor
Franz Czeschka
Egon Reichenecker
Reinhard Zorn
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ERNI Electronics GmbH and Co KG
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ERNI Electronics GmbH and Co KG
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Priority to AT83111005T priority Critical patent/ATE20289T1/en
Publication of EP0110187A1 publication Critical patent/EP0110187A1/en
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Publication of EP0110187B1 publication Critical patent/EP0110187B1/en
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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
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to elastic press-in pins according to the preamble of the main claim and to a method for producing them.
  • Elastic press-in pins of the type mentioned at the outset essentially have the task of compensating for manufacturing tolerances in the diameter of the through-metallized circuit board perforations and have long been known, for example, from DE-OS 26 56 736 in the form that they have an approximate C over a certain portion of the respective post length -shaped cross-sectional profile, which on the one hand allows a diameter change or diameter adjustment to different hole diameters in the printed circuit boards and on the other hand by a full system in the each perforation should also generate the required contact pressure.
  • the press-in pins have an approximately M, N or X-shaped cross-sectional section to be molded as a press-in zone, ie to keep the basic cross-section on the side parts coming into contact with the perforations of the printed circuit boards, to get good contact points.
  • a disadvantage of these designs is, on the one hand, that these cross-sectional shapes have only a very low elasticity and thus adaptability to different hole diameters, because in the actual bending areas there are still relatively strong material zones which stiffen the basic shape of the profile cross section, and on the other hand there is also Manufacture of such cross-sectional zones is not only very complex per se, but also difficult to carry out given the small dimensions of the winding posts.
  • Another disadvantage of this known embodiment is the sharp edges of the press-in edges, which, in conjunction with the lower elasticity of the press-in cross-sections mentioned above, can easily lead to deformation and damage to the metallized bore walls in the case of corresponding narrow bores.
  • DE-PS 32 10 348 has therefore already proposed roughly cross-sectionally symmetrical press-in pins, with a fastening section which has two mutually movable, parallel side parts which are connected to one another by a spring-elastic, wavy connecting web, and in which the connecting web in each case about the middle of the inner surface of the side panels and the one with the bore wall of the printed circuit board in contact-edges of the side parts are provided with curves.
  • Such a press-in pin is already considerably better than the embodiments according to DE-GM 81 05 896 or EP-OS 0 059 462 with regard to the elasticity of the press-in section and thus adaptability to, and protection of the bore walls, but in terms of function it is above all to be doubted, Whether with these small component dimensions, the connecting central web between the latter, which is only one third of the material thickness of the side parts, can also exert a sufficiently high contact pressure of the side parts on the respective wall of the bore after pressing in, or only deforms plastically instead of elastically. Without a doubt, however, the production of such cross-sectional profiles according to DE-PS 32 10 348 is not only extremely difficult and costly, but under no circumstances can it subsequently be attached to corresponding winding pastes.
  • the object of the present invention is therefore to eliminate the disadvantages of the known press-in pins listed above and to create a pin shape which is new in cross section and which, in addition to high elasticity, also has good and contact-safe edge pressure in the printed circuit boards perforations results without deforming or otherwise damaging them and which, moreover, can be produced simply and securely from a preferably rectangular or square post basic shape and can even be subsequently formed on almost all commercially available post systems.
  • elastic deformation area B of a winding post 5 of connectors 6 of the type shown schematically in Fig. 2, for example, is characterized in particular in that the press-in section B of each post 5 has a U-shaped cross-sectional basic shape with respect to the width a and the lower limit 3b of the profile back 3, c outwards and offset in height h, the side parts 4 forming free legs.
  • the hole is at every diameter tolerance gene 7 and 7 'ensures that the four press-in edges R 1 and R 2 fully come to rest against the metallized walls 7a and 7a'.
  • the wall thickness s of the profile back 3 is equal to or less than that of the neck-shaped transition areas E between the back 3 and the side parts 4 and the cross-sectional transition in the profile interior 2a from the back part 3a from an obliquely linear slope and from the back outside 3b, a circular arc R 3 directed towards the profile inner wall 4b, the thickness d of the side parts 4 also being greater than that of the transition areas E towards the profile back 3 and the latter outside the profile center of gravity S. lies.
  • the press-in areas according to the invention in accordance with the schematic representation in FIG. 1 can be produced in a simple, exact and therefore safe manner from rejects by a lower die part 1 that fixes the post width b in a recess of the same opening width a with molded-in, the outer contour of the later elastic cross-sectional transitions E between the back 3 and the bulges la forming the side parts 4 with the radii R 3 , and an associated die upper part 2, the stamp profile 2a of which essentially corresponds to the shape of the inner profile profile 3a, 4a, 4b of the finished cross-section of the pin and the lateral regions 2b of which form the free contact legs or side parts 4 serve with their outer press-in edges R 1 and R 2 .

Abstract

To create an insertable elastic section for connecting contact pins into through-openings in a printed circuit board, an axially extending section of a post or pin is deformed to provide an axially extending U-shaped section. The pin is provided with a regular transverse section from which the U-shaped section is deformed. The original shape of the pin may be rectangular. The deformation is carried out in a pair of die parts. The axially extending U-shaped section is divided into a bight part or base with a pair of legs extending outwardly from the opposite sides of the base. The outside surfaces of the legs are shaped to provide linear contact with the surface of an opening through a printed circuit board with the contact being afforded at the opposite ends of the legs. Transition sections interconnect the legs to the base and are provided with a reduced wall thickness as compared to the legs for enhancing the elasticity of the legs. The elasticity of the U-shaped section accommodates the diameter differences in the openings through the printed circuit board.

Description

Die Erfindung bezieht sich auf elastische Einpreßstifte nach dem Oberbegriff des Hauptanspruchs sowie auf ein Ver-- fahren zu deren Herstellung.The invention relates to elastic press-in pins according to the preamble of the main claim and to a method for producing them.

Elastische Einpreßstifte der eingangs erwähnten Art haben im wesentlichen die Aufgabe, Fertigungstoleranzen im Durchmesser der durchmetallisierten Leiterplattenlochungen auszugleichen und sind bereits seit längerem beispielsweise aus der DE-OS 26 56 736 in der Form bekannt, daß sie über einen gewissen Teilbereich der jeweiligen Pfostenlänge einen etwa C-förmigen Querschnittsverlauf aufweisen, der einerseits eine Durchmesserveränderung bzw. Durchmesseranpassung an unterschiedliche Lochdurchmesser in den Leiterplatten erlaubt und zum anderen durch satte Anlage in der jeweiligen Lochung auch den erforderlichen Anpreßdruck erzeugen sollen. Während nun die Teilaufgabe der Durchmesseranpassung bei dieser bekannten Ausführung als mehr oder weniger gut gelöst betrachtet werden kann, ist die Kontakthaftigkeit selbst nur sehr ungenügend; zurückzuführen ist dies darauf, daß der spezifische Anpreßdruck des C-förmigen Pfostenteils an der Lochwandung aufgrund derrelativ großen Anlagefläche nur sehr gering ist, so daß niemals eine sogenannte gasdichte Verbindung entstehen kann, sondern stattdessen eher mit Korrosionserscheinungen an den Kontaktstellen gerechnet werden muß. Auch liegt es auf der Hand, daß die Herstellung solcher C-färmiger Abschnitte an den relativ dünnen und meistens rechteckigen Pfosten fertigungstechnisch sehr aufwendig ist und niemals an bereits vorhandenen oder handelsüblichen Steckverbindern anderer Fabrikate nachvollzogen werden kann.Elastic press-in pins of the type mentioned at the outset essentially have the task of compensating for manufacturing tolerances in the diameter of the through-metallized circuit board perforations and have long been known, for example, from DE-OS 26 56 736 in the form that they have an approximate C over a certain portion of the respective post length -shaped cross-sectional profile, which on the one hand allows a diameter change or diameter adjustment to different hole diameters in the printed circuit boards and on the other hand by a full system in the each perforation should also generate the required contact pressure. While the partial task of adjusting the diameter in this known embodiment can be regarded as more or less well solved, the contact quality itself is only very insufficient; This is due to the fact that the specific contact pressure of the C-shaped post part on the hole wall is only very low due to the relatively large contact surface, so that a so-called gas-tight connection can never occur, but instead corrosion phenomena at the contact points have to be expected instead. It is also obvious that the production of such C-shaped sections on the relatively thin and mostly rectangular posts is technically very complex and can never be reproduced on existing or commercially available connectors from other manufacturers.

Auch ist es neben der bereits erwähnten DE-OS 26 56 736 aus dem ebenfalls älteren DE-GM 81 05 896 bzw. der teilidentischen EP-OS 0 059 462 noch bekannt, den Einpreßstiften einen etwa M-, N- oder X-förmigen Querschnittsabschnitt als Einpreßzone anzuformen, d.h. den Grundquerschnitt an den mit den Lochungen der Leiterplatten in Kontakt kommenden Seitenteilen also kantig zu halten, um gute Kontaktstellen zu bekommen. Nachteilig bei diesen Ausführungen ist es zum einen jedoch, daß diese Querschnittsformen nur eine ganz geringe Elastizität und somit Anpaßbarkeit an unterschiedliche Lochdurchmesser haben, weil in den eigentlichen Biegebereichen noch relativ starke und die Grundform des Profilquerschnitts aussteifende Materialzonen vorhanden sind, und zum anderen ist auch die Fertigung derartiger Querschnittszonen an sich nicht nur sehr aufwendig, sondern auch schwer durchführbar bei den gegebenen, kleinen Abmessungen der Wickelpfosten. Als weiterer Nachteil kommt bei dieser bekannten Ausführung noch die Scharfkantigkeit der Einpreßkanten hinzu, die in Verbindung mit der bereits erwähnten, geringeren Elastizität der Einpreßquerschnitte bei entsprechenden engen Bohrungen leicht zu Deformation und Beschädigung an den metallisierten Bohrungswandungen führen kann.In addition to the already mentioned DE-OS 26 56 736 from the also older DE-GM 81 05 896 and the partly identical EP-OS 0 059 462, the press-in pins have an approximately M, N or X-shaped cross-sectional section to be molded as a press-in zone, ie to keep the basic cross-section on the side parts coming into contact with the perforations of the printed circuit boards, to get good contact points. A disadvantage of these designs is, on the one hand, that these cross-sectional shapes have only a very low elasticity and thus adaptability to different hole diameters, because in the actual bending areas there are still relatively strong material zones which stiffen the basic shape of the profile cross section, and on the other hand there is also Manufacture of such cross-sectional zones is not only very complex per se, but also difficult to carry out given the small dimensions of the winding posts. Another disadvantage of this known embodiment is the sharp edges of the press-in edges, which, in conjunction with the lower elasticity of the press-in cross-sections mentioned above, can easily lead to deformation and damage to the metallized bore walls in the case of corresponding narrow bores.

Man hat deshalb in der DE-PS 32 10 348 auch bereits in etwa querschnittssymmetrische Einpreßstifte vorgeschlagen, mit einem Befestigungsabschnitt, der zwei gegeneinander bewegliche, parallele Seitenteile aufweist, die durch einen federelastischen, wellenförmigen Verbindungssteg miteinander verbunden sind, und bei denen zudem der Verbindungssteg jeweils etwa auf der Mitte der inneren Fläche der Seitenteile angesetzt ist sowie die mit den Bohrungswandungen der Leiterplatte in Kontakt tretenden-Kanten der Seitenteile mit Rundungen versehen sind.DE-PS 32 10 348 has therefore already proposed roughly cross-sectionally symmetrical press-in pins, with a fastening section which has two mutually movable, parallel side parts which are connected to one another by a spring-elastic, wavy connecting web, and in which the connecting web in each case about the middle of the inner surface of the side panels and the one with the bore wall of the printed circuit board in contact-edges of the side parts are provided with curves.

Ein solcher Einpreßstift ist zwar hinsichtlich Elastizität des Einpreßabschnitts und somit Anpaßbarkeit an, sowie Schonung der Bohrungswandungen bereits erheblich besser als die Ausführungsformen gemäß dem DE-GM 81 05 896 bzw. der EP-OS 0 059 462, jedoch ist funktionsmäßig vor allem zu bezweifeln, ob bei diesen kleinen Bauteilabmessungen, der mit nur einem Drittel der Materialstärke der Seitenteile angegebene, verbindende Mittelsteg zwischen letzteren nach erfolgter Einpressung auch einen genügend hohen Anpreßdruck der Seitenteile auf die jeweilige Bohrungswandung ausüben kann, oder sich lediglich plastisch anstatt elastisch verformt. Zweifelsfrei jedoch ist die Herstellung solcher Querschnittsprofile nach der DE-PS 32 10 348 nicht nur äußerst schwierig und kostenaufwendig, sondern unter keinen Umständen mehr nachträglich an entsprechende Wickelpfasten anbringbar.Such a press-in pin is already considerably better than the embodiments according to DE-GM 81 05 896 or EP-OS 0 059 462 with regard to the elasticity of the press-in section and thus adaptability to, and protection of the bore walls, but in terms of function it is above all to be doubted, Whether with these small component dimensions, the connecting central web between the latter, which is only one third of the material thickness of the side parts, can also exert a sufficiently high contact pressure of the side parts on the respective wall of the bore after pressing in, or only deforms plastically instead of elastically. Without a doubt, however, the production of such cross-sectional profiles according to DE-PS 32 10 348 is not only extremely difficult and costly, but under no circumstances can it subsequently be attached to corresponding winding pastes.

Aufgabe der vorliegenden Erfindung ist es daher, die vorstehend aufgeführten Nachteile der bekannten Einpreßstifte zu beseitigen und eine vom Querschnitt her neue Stiftform zu schaffen, die neben hoher Elastizität, auch eine gute und kontaktsichere Kantenpressung in den Leiterplattenlochungen ergibt, ohne diese zu deformieren oder anders zu beschädigen und die zudem sowohl einfach als auch sicher aus einer vorzugsweise rechteckigen oder quadratischen Pfostengrundform herzustellen und sogar nachträglich an fast allen handelsüblichen Pfostensystemen noch anformbar ist.The object of the present invention is therefore to eliminate the disadvantages of the known press-in pins listed above and to create a pin shape which is new in cross section and which, in addition to high elasticity, also has good and contact-safe edge pressure in the printed circuit boards perforations results without deforming or otherwise damaging them and which, moreover, can be produced simply and securely from a preferably rectangular or square post basic shape and can even be subsequently formed on almost all commercially available post systems.

Gelöst wird diese Aufgabe durch die in den Patentansprüchen angegebenen baulichen Mittel und fertigungstechnischen Maßnahmen, deren spezielle Einzelheiten und Vorteile in der Beschreibung eines Ausführungsbeispiels zudem näher erläutert sind. Das in den Zeichnungen dargestellte Ausführungsbeispiel zeigt in

  • Figur 1 den erfindungsgemäßen Querschnitt der Einpreßzone eines Wickelpfostens mit dem zugehörigen Fertigungsgesenk,
  • Figur 2 die Teilansicht eines Steckverbinders mit erfindungsgemäßen Einpreßstiften,
  • Figur 3 den Pfostenquerschnitt in einem Leiterplattenloch und
  • Figur 4 denselben Stiftquerschnitt in einer engeren Lochung.
This object is achieved by the structural means and production engineering measures specified in the claims, the specific details and advantages of which are also explained in more detail in the description of an exemplary embodiment. The embodiment shown in the drawings shows in
  • 1 shows the cross section according to the invention of the press-in zone of a winding post with the associated production die,
  • FIG. 2 shows the partial view of a plug connector with press-in pins according to the invention,
  • Figure 3 shows the post cross section in a circuit board hole and
  • Figure 4 the same pin cross-section in a narrower perforation.

Der Fig. 1 im Fertigungsgesenk 1, 2 sowie in den Fig. 3 und 4 im Querschnitt, und zudem eingepreßt in Lochungen 7 bzw. 7' dargestellte, erfindungsgemäß elastische Verformungsbereich B eines Wickelpfostens 5 von Steckverbindern 6 der beispielsweise in Fig. 2 schematisch dargestellten Art, zeichnet sich insbesondere dadurch aus, daß der Einpreßabschnitt B jedes Pfostens 5 eine U-förmige Querschnittsgrundform mit gegenüber der Breite a sowie der unteren Begrenzung 3b des Profilrückens 3, nach außen c und in der Höhe h versetzten, die Seitenteile 4 bildenden, freien Schenkeln, aufweist.1 in the production die 1, 2 and in FIGS. 3 and 4 in cross section, and also pressed into Lochun Gen 7 and 7 'shown, according to the invention elastic deformation area B of a winding post 5 of connectors 6 of the type shown schematically in Fig. 2, for example, is characterized in particular in that the press-in section B of each post 5 has a U-shaped cross-sectional basic shape with respect to the width a and the lower limit 3b of the profile back 3, c outwards and offset in height h, the side parts 4 forming free legs.

Diese U-Form, mit den zur Breite "a" sowie Stärke "s" des Profilrückens 3 seitlich c und in der Höhe h versetzten Seitenteilen 4, bewirkt zum einen, daß lediglich letztere, mit ihren jeweils äußeren, in bekannter Weise abgerundeten Einpreßkanten R1 und R2 zur Anlage an den metallisierten Bohrungswandungen 7a bzw. 7a' gelangen, wodurch die aus der Verformungselastizität infolge der Durchbiegung x bzw. x1 des Profilrückens 3 resultierenden Anpreßkräfte, den sicheren Kontakt zwischen den in etwa linienförmigen Einpreßkanten R1 und R2 der Seitenteile 4 und den jeweiligen Lochwandungen 7a bzw. 7a' gewährleisten. Bedingt dadurch, sich die Seitenteile 4 bei ihrem elastischen Verformungsweg v bzw. v1 um Profilrücken 3 herum in etwa kreisbogenförmig aufeinanderzu bewegen, ist bei jeder Durchmessertoleranz der Lochungen 7 bzw. 7' gewährleistet, daß die vier Einpreßkanten R1 und R2 voll zur Anlage an den metallisierten Wandungen 7a bzw. 7a' gelangen.This U-shape, with the width "a" and the thickness "s" of the profile back 3 laterally c and in height h offset side parts 4, on the one hand causes only the latter, with their respective outer, in known manner rounded pressing edges R 1 and R 2 come into contact with the metallized bore walls 7a and 7a ', as a result of which the contact forces resulting from the elasticity of deformation as a result of the deflection x and x 1 of the profile back 3 ensure reliable contact between the approximately linear press-in edges R 1 and R 2 ensure the side parts 4 and the respective hole walls 7a and 7a '. Due to the fact that the side parts 4 move with their elastic deformation path v or v 1 around the back 3 of the profile in an approximately circular arc, the hole is at every diameter tolerance gene 7 and 7 'ensures that the four press-in edges R 1 and R 2 fully come to rest against the metallized walls 7a and 7a'.

In spezieller funktions- wie auch fertigungstechnischer Ausgestaltung der vorliegenden Erfindung ist weiterhin noch vorgesehen, daß die Wandstärke s des Profilrückens 3 gleich oder kleiner als diejenige der halsförmigen Übergangsbereiche E zwischen dem Rücken 3 und den Seitenteilen 4 ist und der Querschnittsübergang im Profilinneren 2a vom Rückenteil 3a aus einen schräglinear ansteigenden sowie von der Rückenaußenseite 3b her, einen kreisbogenförmig R3 auf die Profilinnenwandung 4b hin gerichteten Verlauf hat, wobei zudem die Dicke d der Seitenteile 4 größer als diejenige der Übergangsbereiche E zum Profilrücken 3 hin ausgebildet ist und letzterer außerhalb des Profilschwerpunktes S liegt.In a special functional as well as manufacturing design of the present invention, it is also provided that the wall thickness s of the profile back 3 is equal to or less than that of the neck-shaped transition areas E between the back 3 and the side parts 4 and the cross-sectional transition in the profile interior 2a from the back part 3a from an obliquely linear slope and from the back outside 3b, a circular arc R 3 directed towards the profile inner wall 4b, the thickness d of the side parts 4 also being greater than that of the transition areas E towards the profile back 3 and the latter outside the profile center of gravity S. lies.

Durch diese baulichen Maßnahmen wird noch eine zusätzliche Elastizität in den Übergangsbereichen E gewährleistet, so daß die Seitenteile 4 im Gegensatz zu den nach dem Stand der Technik eingangs bereits abgehandelten bekannten Ausführungen, keine Durchbiegung mehr erfahren und den vollen Anpreßdruck somit über die Kanten R1 und R2 auf die jeweiligen Wandungen 7a bzw. 7a' übertragen können, wobei insbesondere der außerhalb des Profilschwerpunktes S liegende Rücken 3 die für die jeweilige Anpassung erforderliche hohe Querelastizität gewährleistet.These structural measures still ensure additional elasticity in the transition areas E, so that the side parts 4, in contrast to the known designs already dealt with according to the prior art, no longer experience any deflection and thus the full contact pressure via the edges R 1 and R 2 on the respective walls 7a and 7a ' can wear, in particular the back 3 lying outside the profile center of gravity S ensures the high transverse elasticity required for the respective adaptation.

In einfacher, exakter und damit ausschußsicherer Weise sind die erfindungsgemäßen Einpreßbereiche nach der schematischen Darstellung in Fig. 1 herzustellen durch ein die Pfostenbreite b in einer Ausnehmung gleicher Öffnungsweite a fixierendes Gesenkunterteil 1 mit eingeformten, die Außenkontur der späteren, elastischen Querschnittsübergänge E zwischen dem Rücken 3 und den Seitenteilen 4 ausbildenden Wülsten la mit den Radien R3, sowie einem zugeordneten Gesenkoberteil 2, dessen Prägestempelprofil 2a im wesentlichen der Ausformung des inneren Profilverlaufs 3a, 4a, 4b des Stiftfertigquerschnitts und dessen seitliche Bereiche 2b der Ausbildung der freien Anlageschenkel bzw. Seitenteile 4 mit ihren äußeren Einpreßkanten R1 und R2, dienen. Auf diese Weise ist, was bei den bislang bekannten Einpreßstiften insgesamt noch nicht der Fall war, ein jeweils einzelnes Einbringen der Profilprägungen des Einpreßabschnitts B an den Wickelpfosten 5 bei deren Fertigung oder aber auch ein nachträgliches an bereits mit Pfosten 5 bestückten Steckverbinders 6 beliebiger Bauart vor deren Einpressen in die entsprechenden Leiterplatten 8, möglich, im letzteren Falle wäre dann ein spezielles Mehrfachgesenk zu verwenden.The press-in areas according to the invention in accordance with the schematic representation in FIG. 1 can be produced in a simple, exact and therefore safe manner from rejects by a lower die part 1 that fixes the post width b in a recess of the same opening width a with molded-in, the outer contour of the later elastic cross-sectional transitions E between the back 3 and the bulges la forming the side parts 4 with the radii R 3 , and an associated die upper part 2, the stamp profile 2a of which essentially corresponds to the shape of the inner profile profile 3a, 4a, 4b of the finished cross-section of the pin and the lateral regions 2b of which form the free contact legs or side parts 4 serve with their outer press-in edges R 1 and R 2 . In this way, what was not yet the case with the previously known press-in pins as a whole, an individual introduction of the profile embossments of the press-in section B to the winding post 5 during their manufacture or also a subsequent installation of any type of connector 6 already equipped with post 5 pressing them into the corresponding printed circuit boards 8 is possible, in the latter case a special multiple die would then have to be used.

BezugsziffernverzeichnisList of reference numbers

  • 1 Gesenkunterteil1 die lower part
  • la Wulstla bead
  • 2 Gesenkoberteil2 die top
  • 2a Stempel, Innenprofil2a stamp, inner profile
  • 2b Gesenkseitenteil2b die side part
  • 3 Profilrücken3 profile backs
  • 3a innerer Profilverlauf des Rückens3a inner profile of the back
  • 3b untere Begrenzung des Rückens3b lower limit of the back
  • 4 Seitenteil4 side part
  • 4a innerer Verlauf4a inner course
  • 5 Wickelpfosten5 winding posts
  • 6 Steckverbinder6 connectors
  • 7 Lochung7 holes
  • 7' kleinere Lochung7 'smaller holes
  • 7a metallisierte Wand bzw. Leiterplattenbohrung7a metallized wall or PCB hole
  • 7a' metallisierter Rand "7a 'metallized edge "
  • 8 Leiterplatte8 circuit board
  • x Durchbiegungx deflection
  • x " x "
  • b Wickelpfostengrundform, Pfostenbreiteb Basic form of winding posts, post width
  • a Öffnungsweite bzw. Rückenbreite von Pos. 3a Opening width or back width from item 3
  • c Außenversatz der Seitenteile 4c External offset of the side parts 4
  • d Dicke " "d thickness ""
  • h Höhenversatz " "h height offset ""
  • s Wandstärke des Rückens 3s wall thickness of the back 3
  • v elastischer Verformungswegv elastic deformation path
  • v 1 " " v 1 ""
  • S ProfilschwerpunktS Profile focus
  • B EinpreßabschnittB press-in section
  • E halsförmiger ÜbergangsbereichE neck-shaped transition area
  • R 1 Einpreßkanten R 1 press-in edges
  • R2 "R 2 "
  • R3 Kreisbogenverlauf bei E bzw. laR 3 circular arc at E or la

Claims (5)

1. Elastischer Einpreßstift für die lötfreie Verbindung der Wickelpfosten (5) elektrischer Steckverbinder (6) mit den durchkontaktierten Lochungen (7) von Leiterplatten (8), wobei aus dem Grundprofil (b, b) der freien Pfostenteile (5) Bereiche (B) querelastischer Querschnittsprofilierung in der Art herausgeformt sind, daß jeweils zwei, zumindest in ihrer Ausgangslage zueinander parallele und gegeneinander bewegbare Seitenteile (4), durch einen elastischen Steg (3) miteinander verbunden und die Übergänge von letzterem (3) zu den Seitenteilen (4) sowie die mit den Bohrungswandungen ( 7a, 7a') der jeweiligen Leiterplatte (8) in Kontakt tretenden Einpreßkanten (R1, R2) der Seitenteile (4) mit Abrundungen versehen sind,
dadurch gekennzeichnet,
daß der Einpreßabschnitt (B) jedes Pfostens (5) eine U-förmige Querschnittsgrundform mit gegenüber der Breite (a) sowie der unteren Begrenzung (3b) des Profilrückens (3), nach außen (c) und in der Höhe (h) versetzten, die Seitenteile (4) bildenden, freien Schenkeln, aufweist.1. Elastic press-in pin for the solderless connection of the winding posts (5) electrical connectors (6) with the plated-through holes (7) of printed circuit boards (8), with areas (B) from the basic profile (b, b) of the free post parts (5) transversely elastic cross-sectional profiling are formed in such a way that two side parts (4), at least in their starting position parallel to one another and movable against one another, are connected to one another by an elastic web (3) and the transitions from the latter (3) to the side parts (4) and the press-in edges (R 1 , R 2 ) of the side parts (4), which come into contact with the bore walls (7a, 7a ') of the respective printed circuit board (8), are rounded off,
characterized,
that the press-in section (B) of each post (5) offset a U-shaped basic cross-sectional shape with respect to the width (a) and the lower boundary (3b) of the profile back (3), outwards (c) and in height (h), the free side legs forming the side parts (4). 2. Elastischer Einpreßstift nach Anspruch 1,
dadurch gekennzeichnet,
daß die Wandstärke (s) des Profilrückens (3) gleich oder kleiner als diejenige der halsförmigen Übergangsbereiche (E) zwischen dem Rücken (3) und den Seitenteilen (4) ist und der Querschnittsübergang im Profilinneren (2a) vom Rückenteil (3a) aus einen schräglinear ansteigenden sowie von der Rückenaußenseite (3b) her, einen kreisbogenförmig (R3) auf die Profilinnenwandung (4b) hin gerichteten Verlauf hat.2. Elastic press-in pin according to claim 1,
characterized,
that the wall thickness (s) of the profile back (3) is equal to or is smaller than that of the neck-shaped transition areas (E) between the back (3) and the side parts (4) and the cross-sectional transition in the interior of the profile (2a) from the back part (3a) is an obliquely linear as well as from the back outside (3b), a circular arc (R 3 ) directed towards the profile inner wall (4b). 3. Elastischer Einpreßstift nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet,
daß die Dicke (d) der Seitenteile (4) größer als diejenige der Übergangsbereiche(E) zum Profilrücken (3) hin ausgebildet ist und letzterer außerhalb des Profilschwerpunktes (S) liegt.3. Elastic press-in pin according to claims 1 and 2,
characterized,
that the thickness (d) of the side parts (4) is greater than that of the transition regions (E) towards the profile back (3) and the latter lies outside the profile center of gravity (S). 4. Verfahren zum Herstellen elastischer Einpreßstifte mit Merkmalen nach einem oder mehreren der vorhergehenden Ansprüche,
gekennzeichnet durch
ein die Pfostenbreite (b) in einer Ausnehmung gleicher öffnungsweite (a) fixierendes Gesenkunterteil (1) mit eingeformten, die Außenkontur der späteren, elastischen Querschnittsübergänge (E) zwischen dem Rücken (3) und den Seitenteilen (4) ausbildenden Wülsten (la mit R3) sowie einem zugeordneten Gesenkoberteil (2), dessen Prägestempelprofil (2a) im wesentlichen der Ausformung des inneren Profilverlaufs (3a, 4a, 4b) des Stiftendquerschnitts und dessen seitliche Bereiche (2b) der Ausbildung der Seitenteile (4) mit ihren äußeren Einpreßkanten (R1 und R2), dienen.4. A method for producing elastic press-in pins with features according to one or more of the preceding claims,
marked by
a die lower part (1) fixing the post width (b) in a recess of the same opening width (a) with molded-in beads (la with R.) forming the outer contour of the later elastic cross-sectional transitions (E) between the back (3) and the side parts (4) 3 ) and an associated die upper part (2), the Embossing die profile (2a) essentially serves to shape the inner profile profile (3a, 4a, 4b) of the pin end cross section and its lateral areas (2b) to form the side parts (4) with their outer press-in edges (R 1 and R 2 ). 5. Verfahren nach Anspruch 4,
gekennzeichnet durch
jeweils einzelnes Einbringen der Profilprägungen des Einpreßabschnitts (B) an den Wickelpfosten (5) bei deren Fertigung oder nachträgliches an bereits mit Pfosten (5) bestückten Steckverbindern (6) beliebiger Bauart, vor deren Einpressen in entsprechende Leiterplatten (8).5. The method according to claim 4,
marked by
Each individual introduction of the profile embossments of the press-in section (B) to the winding post (5) during their manufacture or subsequently to connectors (6) of any type already equipped with posts (5) before they are pressed into corresponding printed circuit boards (8).
EP83111005A 1982-11-06 1983-11-04 Elastic press-fit pin for the solderless connection of wire wrapping posts of electric plug connectors with plated through-holes circuit boards, and method for its manufacture Expired EP0110187B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111005T ATE20289T1 (en) 1982-11-06 1983-11-04 ELASTIC PRESS-IN PIN FOR SOLDER-FREE CONNECTION OF THE WINDING POST OF ELECTRICAL PLUG-IN CONNECTOR OR SOMETHING. WITH THRU-PLATED CIRCUIT BOARDS AND PROCESS FOR ITS MANUFACTURE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3241061 1982-11-06
DE3241061A DE3241061C2 (en) 1982-11-06 1982-11-06 Elastic press-fit pin for the solderless connection of the winding posts of electrical connectors or the like. with through-plated printed circuit boards and processes for its manufacture

Publications (2)

Publication Number Publication Date
EP0110187A1 true EP0110187A1 (en) 1984-06-13
EP0110187B1 EP0110187B1 (en) 1986-06-04

Family

ID=6177482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111005A Expired EP0110187B1 (en) 1982-11-06 1983-11-04 Elastic press-fit pin for the solderless connection of wire wrapping posts of electric plug connectors with plated through-holes circuit boards, and method for its manufacture

Country Status (5)

Country Link
US (1) US4585293A (en)
EP (1) EP0110187B1 (en)
JP (1) JPS5998482A (en)
AT (1) ATE20289T1 (en)
DE (2) DE3241061C2 (en)

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US4691979A (en) * 1983-08-04 1987-09-08 Manda R & D Compliant press-fit electrical contact
EP0340574A2 (en) * 1988-05-06 1989-11-08 Cdm Connectors Development And Manufacture A.G. Electrical press-fit contact member, and method for its production
EP0367660A2 (en) * 1988-11-01 1990-05-09 Elfab Corporation Compliant electrical connector pin
WO2008025611A1 (en) * 2006-08-30 2008-03-06 Robert Bosch Gmbh Press-in pin

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JPS625575A (en) * 1985-07-02 1987-01-12 ヒロセ電機株式会社 Electric contact pin and manufacture thereof
JPH0431740Y2 (en) * 1986-09-26 1992-07-30
US4831728A (en) * 1987-06-05 1989-05-23 Northern Telecom Limited Method of making circuit board pin
US4740166A (en) * 1987-06-05 1988-04-26 Northern Telecom Limited Circuit board pin
US4826456A (en) * 1987-12-16 1989-05-02 Gte Products Corporation Electrical connector with compliant section
DE3831508C2 (en) * 1988-09-16 1997-02-13 Thomas & Betts Gmbh & Co Kg Elastic press-in pin for solderless connections
DE4002486A1 (en) * 1990-01-29 1991-08-08 Polytronic Kunststoff Elektro Contact pin for vias in printed circuit board - has pressed-out central section with narrow link between much broader posts for hole wall contact
US5061209A (en) * 1991-03-13 1991-10-29 Hubbell Incorporated Wall plate jack and contact therefor
JP3109962B2 (en) * 1994-07-15 2000-11-20 第一電子工業株式会社 Press-in contact
JP4058774B2 (en) * 1996-07-01 2008-03-12 ザ ウィタカー コーポレーション Housing assembly
JP2929176B2 (en) 1996-09-20 1999-08-03 モレックス インコーポレーテッド Press fit pin
DE19810897C1 (en) * 1998-03-13 1999-08-19 Weidmueller Interface Contact pin for solder-free mounting in metallised circuit board holes
JP3166706B2 (en) 1998-04-14 2001-05-14 日本電気株式会社 Place-in contact
GB2341280A (en) * 1998-08-29 2000-03-08 Miles Platts Ltd Terminal connectors
DE502005007322D1 (en) * 2004-06-09 2009-07-02 Andreas Veigel press-fit
DE102004028202B4 (en) * 2004-06-09 2006-10-05 Veigel, Andreas, Ing.(grad.) press-fit
US7816781B2 (en) * 2007-10-02 2010-10-19 Infineon Technologies Ag Power semiconductor module
JP6550890B2 (en) * 2015-04-22 2019-07-31 住友電装株式会社 Press-fit terminal
JP7094677B2 (en) * 2017-09-15 2022-07-04 タイコエレクトロニクスジャパン合同会社 Board mounting terminal
CN111149260B (en) * 2017-09-28 2021-10-08 怡得乐工业有限公司 Contact with press-fit fastener
CN209860190U (en) 2019-06-20 2019-12-27 富士康(昆山)电脑接插件有限公司 Conductive terminal
US11546991B2 (en) 2020-03-11 2023-01-03 Peter C. Salmon Densely packed electronic systems
US10966338B1 (en) 2020-03-11 2021-03-30 Peter C. Salmon Densely packed electronic systems
US11393807B2 (en) 2020-03-11 2022-07-19 Peter C. Salmon Densely packed electronic systems
DE102021113473A1 (en) * 2021-05-25 2022-12-01 Erni International Ag Embossing die for a punching tool
US11523543B1 (en) 2022-02-25 2022-12-06 Peter C. Salmon Water cooled server
US11445640B1 (en) 2022-02-25 2022-09-13 Peter C. Salmon Water cooled server

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US4691979A (en) * 1983-08-04 1987-09-08 Manda R & D Compliant press-fit electrical contact
EP0340574A2 (en) * 1988-05-06 1989-11-08 Cdm Connectors Development And Manufacture A.G. Electrical press-fit contact member, and method for its production
EP0340574A3 (en) * 1988-05-06 1990-09-12 Cdm Connectors Development And Manufacture A.G. Electrical press-fit contact member, and method for its production
EP0367660A2 (en) * 1988-11-01 1990-05-09 Elfab Corporation Compliant electrical connector pin
EP0367660A3 (en) * 1988-11-01 1990-12-12 Elfab Corporation Compliant electrical connector pin
WO2008025611A1 (en) * 2006-08-30 2008-03-06 Robert Bosch Gmbh Press-in pin

Also Published As

Publication number Publication date
DE3363958D1 (en) 1986-07-10
JPS5998482A (en) 1984-06-06
US4585293A (en) 1986-04-29
EP0110187B1 (en) 1986-06-04
DE3241061C2 (en) 1986-04-10
ATE20289T1 (en) 1986-06-15
DE3241061A1 (en) 1984-05-10

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