EP0110187B1 - 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

Info

Publication number
EP0110187B1
EP0110187B1 EP83111005A EP83111005A EP0110187B1 EP 0110187 B1 EP0110187 B1 EP 0110187B1 EP 83111005 A EP83111005 A EP 83111005A EP 83111005 A EP83111005 A EP 83111005A EP 0110187 B1 EP0110187 B1 EP 0110187B1
Authority
EP
European Patent Office
Prior art keywords
section
press
pin
fit
side elements
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
Application number
EP83111005A
Other languages
German (de)
French (fr)
Other versions
EP0110187A1 (en
Inventor
Franz Czeschka
Egon Reichenecker
Reinhard Zorn
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.)
ERNI Electronics GmbH and Co KG
Original Assignee
ERNI Electronics GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ERNI Electronics GmbH and Co KG filed Critical ERNI Electronics GmbH and Co KG
Priority to AT83111005T priority Critical patent/ATE20289T1/en
Publication of EP0110187A1 publication Critical patent/EP0110187A1/en
Application granted granted Critical
Publication of EP0110187B1 publication Critical patent/EP0110187B1/en
Expired legal-status Critical Current

Links

Images

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
    • H01R12/50—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 their production.
  • 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 printed circuit board perforations and have long been known, for example from DE-A-26 26 736, in the form that they have an approximately over a certain portion of the respective post length
  • the press-in pins have an approximately M, N or X. -shaped cross-sectional section as a press-fit zone, ie to keep the basic cross-section on the side parts coming into contact with the perforations of the printed circuit boards so that they have 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 that 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 design 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.
  • EP-A-089 491 which according to Art 54 (3) EPC belongs to the prior art, has therefore already proposed approximately cross-sectionally symmetrical press-in pins with a fastening section which has two mutually movable, parallel side parts which are resilient due to a resilient , wavy connecting web are connected to each other, and in which the connecting web is in each case placed approximately on the center of the inner surface of the side parts and the edges of the side parts coming into contact with the bore walls of the printed circuit board are provided with curves.
  • Such a press-in pin is already considerably better than the embodiments according to DE-U-81 05 896 or EP-A-0 059 462 with regard to the elasticity of the press-in section and thus adaptability to, and protection of the bore walls, but is above all functional in terms of function doubt with these small component dimensions that the connecting center bar 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 borehole wall after pressing in, or only deform plastically instead of elastically. Without a doubt, however, the production of such cross-sectional profiles according to DE-C-32 10 348 is not only extremely difficult and costly, but under no circumstances can it subsequently be attached to corresponding winding posts.
  • 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 gives good and constant edge pressure in the printed circuit board perforations without deforming them or otherwise damage and which is also easy and safe to manufacture from a preferably rectangular or square post base shape and can even be subsequently formed on almost all commercially available post systems.
  • the elastic deformation area B of a winding post 5 of connectors 6, for example in FIG. 2, schematically illustrated type, 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, to the outside c and offset in height h, the side parts 4 forming free legs.
  • this U-shape with the side parts 4 offset to the width “a” and thickness “s” of the profile back 3 laterally c and at the height h, means that only the latter, with their respective outer press-in edges R rounded in a known manner , 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 due to the deflection x and x, respectively, 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 '.
  • the wall thickness s of the profile back 3 is equal to or less than that of the neck-shaped transition regions 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 can be produced in a simple, exact and therefore safe from rejects according to the schematic illustration in FIG. 1 by a lower die part 1 fixing 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 1a 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, 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 Verfahren zu deren Herstellung.The invention relates to elastic press-in pins according to the preamble of the main claim and to a method for their production.

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-A-26 26 736 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 der relativ grossen Anlagefläche nursehrgering 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-förmigen 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 printed circuit board perforations and have long been known, for example from DE-A-26 26 736, in the form that they have an approximately over a certain portion of the respective post length Have a C-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 should also generate the required contact pressure by means of full contact in the respective perforation. 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 very complex in terms of production technology and can never be reproduced on existing or commercially available connectors from other manufacturers.

Auch ist es neben der bereits erwähnten DE-A-26 56 736 aus dem ebenfalls älteren DE-U-81 05 896 bzw. der teilidentischen EP-A-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-A-26 56 736 from the also older DE-U-81 05 896 and the partly identical EP-A-0 059 462, it is also known that the press-in pins have an approximately M, N or X. -shaped cross-sectional section as a press-fit zone, ie to keep the basic cross-section on the side parts coming into contact with the perforations of the printed circuit boards so that they have 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 that 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 design 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 EP-A-089 491, die gemäss Art 54(3) EPÜ zum Stand der Technik gehört 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.EP-A-089 491, which according to Art 54 (3) EPC belongs to the prior art, has therefore already proposed approximately cross-sectionally symmetrical press-in pins with a fastening section which has two mutually movable, parallel side parts which are resilient due to a resilient , wavy connecting web are connected to each other, and in which the connecting web is in each case placed approximately on the center of the inner surface of the side parts and the edges of the side parts coming into contact with the bore walls of the printed circuit board 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-U-81 05 896 bzw. der EP-A-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-C-32 10 348 nicht nur äusserst schwierig und kostenaufwendig, sondern unter keinen Umständen mehr nachträglich an entsprechende Wickelpfosten anbringbar.Such a press-in pin is already considerably better than the embodiments according to DE-U-81 05 896 or EP-A-0 059 462 with regard to the elasticity of the press-in section and thus adaptability to, and protection of the bore walls, but is above all functional in terms of function doubt with these small component dimensions that the connecting center bar 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 borehole wall after pressing in, or only deform plastically instead of elastically. Without a doubt, however, the production of such cross-sectional profiles according to DE-C-32 10 348 is not only extremely difficult and costly, but under no circumstances can it subsequently be attached to corresponding winding posts.

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 konstantsichere 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 gives good and constant edge pressure in the printed circuit board perforations without deforming them or otherwise damage and which is also easy and safe to manufacture from a preferably rectangular or square post base 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 erfindungagemässen 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 manufacturing 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
  • FIG. 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 in 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 Wickelpfosten 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 holes 7 and 7 ', according to the invention, the elastic deformation area B of a winding post 5 of connectors 6, for example in FIG. 2, schematically illustrated type, 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, to the outside c 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 R, und R2 zur Anlage an den metallisierten Bohrungswandungen 7a bzw. 7a' gelangen, wodurch die aus der Verformungselastizität infolge der Durchbiegung x bzw. x, 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 Ri und R2 voll zur Anlage an den metallisierten Wandungen 7a bzw. 7a' gelangen.On the one hand, this U-shape, with the side parts 4 offset to the width “a” and thickness “s” of the profile back 3 laterally c and at the height h, means that only the latter, with their respective outer press-in edges R rounded in a known manner , 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 due to the deflection x and x, respectively, 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, with each diameter tolerance of the perforations 7 and 7 'it is ensured that the four press-in edges R i and R 2 are fully closed Contact 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 configuration of the present invention, it is further provided that the wall thickness s of the profile back 3 is equal to or less than that of the neck-shaped transition regions 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 R, 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 also ensure additional elasticity in the transition areas E, so that the side parts 4, in contrast to the known designs already dealt with at the beginning of the prior art, no longer experience any deflection and thus the full contact pressure via the edges R, and R 2 can be transferred to the respective walls 7a or 7a ', the back 3 lying outside the profile center of gravity S in particular ensuring 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 1a 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 R, 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 can be produced in a simple, exact and therefore safe from rejects according to the schematic illustration in FIG. 1 by a lower die part 1 fixing 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 1a 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, and R 2 . In this way, what was not yet the case with the previously known press-in pins as a whole, a single introduction of the profile embossments of the press-in section B to the winding posts 5 during their manufacture or also a subsequent addition to connectors 5 of any type already equipped with posts 5 pressing them into the corresponding printed circuit boards 8, possible; in the latter case, a special multiple die would have to be used.

Bezugsziffernverzeichnis

  • 1 Gesenkunterteil
  • 1a Wulst
  • 2 Gesenkoberteil
  • 2a Stempel, Innenprofil
  • 2b Gesenkseitenteil
  • 3 Profilrücken
  • 3a innerer Profilverlauf des Rückens
  • 3b untere Begrenzung des Rückens
  • 4 Seitenteil
  • 4a innerer Verlauf
  • 5 Wickelpfosten
  • 6 Steckverbinder
  • 7 Lochung
  • 7' kleinere Lochung
  • 7a metallisierte Wand bzw. Leiterplattenbohrung
  • 7a' metallisierter Rand bzw. Leiterplattenbohrung
  • 8 Leiterplatte
  • x Durchbiegung
  • x, Durchbiegung
  • b Wickelpfostengrundform, Pfostenbreite
  • a Öffnungsweite bzw. Rückenbreite von Pos. 3
  • c Aussenversatz der Seitenteile 4
  • d Dicke der Seitenteile 4
  • h Höhenversatz der Seitenteile 4
  • s Wandstärke des Rückens 3
  • v elastischer Verformungsweg
  • vi elastischer Verformungsweg
  • S Profilschwerpunkt
  • B Einpressabschnitt
  • E halsförmiger Übergangsbereich
  • R, Einpresskanten
  • R2 Einpresskanten
  • R3 Kreisbogenverlauf bei E bzw. 1a.
List of reference numbers
  • 1 die lower part
  • 1a bead
  • 2 die top
  • 2a stamp, inner profile
  • 2b die side part
  • 3 profile backs
  • 3a inner profile of the back
  • 3b lower limit of the back
  • 4 side part
  • 4a inner course
  • 5 winding posts
  • 6 connectors
  • 7 holes
  • 7 'smaller holes
  • 7a metallized wall or PCB hole
  • 7a 'metallized edge or printed circuit board bore
  • 8 circuit board
  • x deflection
  • x, deflection
  • b Basic form of winding posts, post width
  • a Opening width or back width from item 3
  • c Outside offset of the side parts 4
  • d thickness of the side parts 4
  • h Height offset of the side parts 4
  • s wall thickness of the back 3
  • v elastic deformation path
  • v i elastic deformation path
  • S Profile focus
  • B press-in section
  • E neck-shaped transition area
  • R, press-in edges
  • R 2 press-in edges
  • R 3 circular arc at E or 1a.

Claims (5)

1. A compliant press-fit pin for the solderless connection of the terminal pins (5) ol electrical connector assemblies (6) with the plated-through holes (7) of circuit boards (8), whereby the press-fit region (B) of the free part of the pin (5) is formed so as to be compliant in a crosswise direction in such a manner that each pin has two side elements (4) that, at least in their initial positions, are parallel to one another and that are capable of being displaced in relation to one another, the said side elements (4) being joined by a compliant web (3), with the transitions between the latter (3) and the side elements (4) and als the press-fit edges (Ri and R2) of the side elements (4) that come in contact with the side walls (7a, 7a') of the plated-through holes of the associated circuit board all being radiused, characterized by the press-fit zone (B) of each pin (5) having a basically U-shaped cross- sectional form with the said section having free flanks which form the side elements (4) which are displaced laterally (c) and in height (h) relative to the width (a) and the lowermost part of the back of the section (3b).
2. Compliant press-fit pins in accordance with Claim 1, charaterized by the wall thickness (s) of the back of the section (3) being equal to or less than that of the neck-like transition zones (E) between the back (3) and the side elements (4) and by the transitions in the cross-sections in the interior of the section (2a) being inclined upwards from the back (3a) and being radiused (R3) in the direction of the inner wall of the section (4b), commencing from the outside of the back element (3b).
3. A compliant press-fit pin in accordance with Claims 1 and 2, characterized by the thickness (d) of the side elements (4) being greater than that of the transition zones (E) between the side elements (4) and the bottom of the section (3) and by the latter (3) being outside of the section's centre of mass (S).
4. A process for the production of compliant press-fit pins having the features of one or more of the preceding claims, characterized by a die lower-part (1) that locates the pin laterally in a recess of a width (a) similar to the pin width (b), with the said die lower-part (1) having contours (1a with R3) shaped to the external contours of the subsequent compliant cross-section transitions (E) between the back (3) and the side elements (4) and an associated die upper-part (2) whose forming-punch profile (2a) primarily effects the forming of the inner profile (3a, 4a, 4b) of the pin cross-section and whose side zones (2b) have the shape of the side elements (4) with their external press-fit edges (Ri and R2).
5. A process in accordance with Claim 4, characterized by the separate application of the profile punching of the press-fit zone (B) on the terminal pins (5) during their production or subsequently in connectors (6) of any kind before they are pressed into suitable 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
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
DE3241061 1982-11-06

Publications (2)

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

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691979A (en) * 1983-08-04 1987-09-08 Manda R & D Compliant press-fit electrical contact
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
US4740166A (en) * 1987-06-05 1988-04-26 Northern Telecom Limited Circuit board pin
US4831728A (en) * 1987-06-05 1989-05-23 Northern Telecom Limited Method of making circuit board pin
US4826456A (en) * 1987-12-16 1989-05-02 Gte Products Corporation Electrical connector with compliant section
CH675929A5 (en) * 1988-05-06 1990-11-15 Cdm Connectors Dev & Mfg Ag
DE3831508C2 (en) * 1988-09-16 1997-02-13 Thomas & Betts Gmbh & Co Kg Elastic press-in pin for solderless connections
US4878861A (en) * 1988-11-01 1989-11-07 Elfab Corporation Compliant electrical connector pin
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
DE102004028202B4 (en) * 2004-06-09 2006-10-05 Veigel, Andreas, Ing.(grad.) press-fit
US7891992B2 (en) * 2004-06-09 2011-02-22 Andreas Veigel Press-fit contact
DE102006040640A1 (en) * 2006-08-30 2008-03-13 Robert Bosch Gmbh Insert pin
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
EP3688844B1 (en) * 2017-09-28 2023-11-29 Interplex Industries, Inc. Contact with a 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
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
US11546991B2 (en) 2020-03-11 2023-01-03 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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2139535A (en) * 1936-01-25 1938-12-06 Gen Electric Electrical connecter
US3824554A (en) * 1972-08-28 1974-07-16 G Shoholm Spring-type press-fit
US4017143A (en) * 1975-12-16 1977-04-12 Litton Systems, Inc. Solderless electrical contact
DE2937883C2 (en) * 1979-09-19 1983-05-11 Siemens AG, 1000 Berlin und 8000 München Terminal pin for solderless connection techniques
US4343530A (en) * 1980-01-10 1982-08-10 Honeywell Information Systems Inc. Wave solderable quick disconnect male terminal for printed circuit boards
EP0059462B1 (en) * 1981-03-02 1985-10-02 Thaler, Hartmuth F., Ing. grad. Pressurized connection pin
DE8105896U1 (en) * 1981-03-02 1982-04-08 Presskon Gesellschaft für elektronische Bauelemente mbH, 7110 Öhringen Press-fit pin for making a solderless connection
JPS58157974A (en) * 1982-03-15 1983-09-20 Hitachi Ltd Powder for ceramic coating and metallic member having ceramic coating layer
DE3210348C1 (en) * 1982-03-20 1983-08-11 Harting Elektronik Gmbh, 4992 Espelkamp Pin-shaped contact element for fastening in PCB holes
DE3220781A1 (en) * 1982-06-02 1983-12-08 Harting Elektronik Gmbh, 4992 Espelkamp Contact element for solder-free attachment in printed-circuit board holes

Also Published As

Publication number Publication date
DE3241061A1 (en) 1984-05-10
EP0110187A1 (en) 1984-06-13
US4585293A (en) 1986-04-29
ATE20289T1 (en) 1986-06-15
JPS5998482A (en) 1984-06-06
DE3241061C2 (en) 1986-04-10
DE3363958D1 (en) 1986-07-10

Similar Documents

Publication Publication Date Title
EP0110187B1 (en) 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
DE10321348B4 (en) Connectors
DE102008026805B4 (en) single terminal
DE2656736A1 (en) LOET-FREE ELECTRICAL CONTACT
DE69633193T2 (en) CONNECTOR
DE2259358A1 (en) CONTACT TO PICK UP A CONTACT PIN
DE3590369C2 (en)
EP0059462A2 (en) Pressurized connection pin
EP0852826B1 (en) Device for connecting a coaxial connector to a printed circuit board by the sm technique
DE102004033103B4 (en) Method for producing a plug connection, plug connection and plug with press fit
DE2659645C2 (en)
DE3623453C2 (en)
DE3121867C2 (en)
EP3446367B1 (en) Plug contact
DE10134944B4 (en) Electrical connection terminal
DE3933658A1 (en) ELECTRICAL CONNECTOR
DE19934709C2 (en) Contact element for pressing into a hole in a printed circuit board
EP2019454A2 (en) Pin-shaped contact elelement and connection
EP0952765B1 (en) Strip for making electrical contact and/or for EMI shielding, and corresponding shielded device
DE19833248C2 (en) Device for guiding and grounding circuit boards
WO2021160427A1 (en) Plug contact element, direct connector, method for producing a plug contact element, and method for producing a direct connector
EP0921594B1 (en) Connection device
DE102004023850B4 (en) Press fit setting tool for a connector
DE2128136A1 (en) Electrical connector
AT386699B (en) Contact pin

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19841024

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19860604

REF Corresponds to:

Ref document number: 20289

Country of ref document: AT

Date of ref document: 19860615

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3363958

Country of ref document: DE

Date of ref document: 19860710

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19861104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19861211

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910926

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19911101

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19911114

Year of fee payment: 9

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19911130

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19921104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19921105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19921130

Ref country code: CH

Effective date: 19921130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19921104

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 83111005.1

Effective date: 19930610

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021015

Year of fee payment: 20