EP0152769A2 - Contact pin for electronic components, especially printed-circuit boards - Google Patents
Contact pin for electronic components, especially printed-circuit boards Download PDFInfo
- Publication number
- EP0152769A2 EP0152769A2 EP85100511A EP85100511A EP0152769A2 EP 0152769 A2 EP0152769 A2 EP 0152769A2 EP 85100511 A EP85100511 A EP 85100511A EP 85100511 A EP85100511 A EP 85100511A EP 0152769 A2 EP0152769 A2 EP 0152769A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact pin
- thickenings
- printed circuit
- web
- circuit board
- 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
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- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 24
- 238000007906 compression Methods 0.000 claims description 24
- 230000008719 thickening Effects 0.000 claims description 20
- 238000003825 pressing Methods 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 description 6
- 238000005476 soldering Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000004049 embossing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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
Definitions
- the invention relates to a contact pin for electronic components, in particular printed circuit boards according to the preamble of patent claim 1.
- Contact pins are used in considerable quantities for the production of electronic components, in particular for printed circuit boards, in the openings of which the contact pins are inserted.
- contact pins which have a seat section produced by an embossing process, via which they are anchored in the corresponding opening in the printed circuit board.
- a known contact pin of this type US Pat. No. 3,824,554
- two outer sections are delimited by two longitudinal grooves introduced into the wire cross section, which have pointed outer edges with which the contact pin claws into the edge of the openings.
- the anchoring is essentially caused by the restoring forces built up during the pressing in due to elastic deformation of the outer sections, which result in the contact pin in the seat section clawing into the opening wall of the printed circuit board with the outer edges of the two outer sections.
- tolerance deviations can be compensated for.
- Such contact pins with a flexible seat section have advantages over the contact pins rigidly secured by wave soldering, so that they have been used very widely.
- due to the inherent flexibility there are difficulties in calculating the strength of the press fit, which cannot be reliably predicted.
- a contact pin is known (US Pat. No. 4,274,699) in which a central web-like compression zone has two outer surfaces connects sections together, which are used to abut the edge of the circuit board opening. When the contact pin is pressed in, a plastic deformation is essentially to be brought about in the region of the compression zone.
- the central web is comparatively narrow.
- the web When deformed as a result of the pin being pressed into the corresponding printed circuit board opening, the web is laterally folded or buckled, which, however, does not result in a predominantly plastic deformation, but rather in a deformation with a substantial elastic component and thus to build up a correspondingly large elastic Restoring forces is coming. Due to this lateral folding or bending out of the web, the pin can spring back to its initial position at least to a certain extent if it is removed again from the circuit board opening. In extreme cases, the contact pin can shear beyond the shear limit in the web area with a corresponding load, so that two separate legs are formed in the seat section, which in turn cause the contact pin to be held within the circuit board opening by elastic restoring forces.
- the object of the invention is to provide a contact pin which enables a controlled compression without lateral buckling during the press-in process and thus a stabilized compression.
- the web is provided with lateral thickenings, whereby lateral deflection of the material within the compression zone is excluded when the contact pin is pressed in and the plastic deformation that occurs in the process. Rather, the deformation in the central zone of the contact pin, that is to say in the compression zone, is stabilized by displacing the material radially into the center of the contact pin, that is to say in the compression zone.
- the outer sections are not deformed here, rather they are pressed together in the direction of a constant axis radially to the axis of the contact pin and are therefore not subjected to any deformation or bending. There is thus essentially a reduction in the radial length of the contact pin in the seat section transverse to the actual longitudinal axis of the contact pin.
- the material collects essentially within the web area, which is compressed into a spherical ball.
- the thickening is advantageously spherical, in particular in the form of a segment of a circle.
- the thickenings are advantageously provided only in sections over the length of the seat section and are interrupted by thickening-free sections. As a result, the force required for the compression during compression can be regulated in an advantageous manner.
- the contact pin being seated firmly and rigidly within the corresponding circuit board opening after the press-in process as a result of this deformation.
- the compression zone precludes further receding of the contact sections of the seat section, as is the case with contact pins with a greater proportion of elastic deformation.
- FIG. 1 and 2 show the cross section of a seat section of a contact pin for printed circuit boards, with which the contact pin with a press fit is received in an opening with a circular cross section, indicated by dotted lines in FIG. 2, in a printed circuit board (not shown).
- the one generally designated 1 has Seat section a web 2 representing a predetermined compression zone S, which is arranged centrally and extends along the axis of the contact pin substantially over the axial length of the seat section 1 or the press-in zone.
- the compression zone S formed by the central web 2 merges via trumpet-shaped widenings 3 into outer sections 4 which are arranged radially opposite one another with respect to the pin axis and which serve for contacting the edge of the opening of the printed circuit board after the pressing.
- the outer edges 5 of the outer sections 4 are rounded for gentle handling of the opening wall of the printed circuit boards. Via the rounded outer edges 5, the outer sections come into press contact with the edge of the printed circuit board opening when the contact pin is pressed into the printed circuit board, as is indicated in FIG. 2.
- the outer sections 4 are formed from an essentially rectangular plan, which is based on the fact that the seat section or the press-in zone of the contact pin is formed from a contact pin with a rectangular, in particular square, cross section by embossing by means of two opposing stamps. The width of the stamp corresponds essentially to the radial dimension of the web of the compression zone.
- the web 2 of the compression zone S is provided on both sides with spherically shaped thickenings 6, which are approximately circular segment-shaped in the exemplary embodiment shown.
- the thickenings 6 are symmetrical to the radial axis R running through the pin axis. According to the illustration in FIG. 1, the thickenings extend essentially over the entire width of the web 2 and merge directly into the trumpet-shaped widenings 3 of the contact pin via a rounding 7.
- the representation according to FIG. 2 shows that after the pressing in, the plastic material deformation only in the area of the compression zone S, which has been thickened accordingly.
- the compression zone S has been deformed into an approximately spherical shape.
- the two outer sections 4, which have been subjected to essentially no deformation have moved towards one another in the direction of the radial axis R, which has been brought about by a corresponding reduction in the width and corresponding thickening of the compression zone S.
- the radial length that is the length perpendicular to the axis of the contact pin has been reduced by the length 1 1 of Fig. 1 to the length 1 2 of FIG. 2.
- the two thickenings 6 do not extend over the entire length of the seat section 1, but are provided in sections or sections over the length of the seat section. Between the individual thickenings 6, which in turn are symmetrical to the radial axis R, there are thickening-free sections, as can be seen from section II-II in FIG. 3. These sections have a uniform web thickness. The web is shaped in a straight line, as can also be seen from section II-II of FIG. 3. The web thickness corresponds approximately to the smallest thickness of the thickenings 6.
- the compression zone S does not merge into curves, but rather at an acute angle into conical widenings 3 to the outer sections 4.
- four thickenings 6 are provided on each side of the contact pin, the two outer thickenings tapering towards the end of the seat section and, moreover, being longer than the two inner thickenings.
Landscapes
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Laminated Bodies (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Kontaktstift für elektronische Bauteile, insbesondere Leiterplatten gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to a contact pin for electronic components, in particular printed circuit boards according to the preamble of
Kontaktstifte werden in erheblichen Mengen für die Herstellung elektronischer Bauteile verwendet, insbesondere für Leiterplatten, in deren öffnungen die Kontaktstifte eingesteckt werden.Contact pins are used in considerable quantities for the production of electronic components, in particular for printed circuit boards, in the openings of which the contact pins are inserted.
Um einen festen Sitz der Kontaktstifte in den entsprechenden öffnungen der Leiterplatte zu gewährleisten, ist es bekannt, die Kontaktstifte mittels Schwallöten zu befestigen. Jedoch ist der Lötvorgang vergleichsweise aufwendig und erschwert die Lötverbindung ein Herausnehmen der Steckerstifte, falls dies aus Reparaturgründen erforderlich ist. Der wesentliche Nachteil einer Schwallötebefestigung besteht allerdings in der damit einhergehenden Erwärmung der Leiterplatte, was zu Schädigungen, insbesondere Verwerfungen, der Leiterplatte führen kann.It is to ensure that the contact pins are firmly seated in the corresponding openings in the circuit board known to attach the contact pins by means of wave soldering. However, the soldering process is comparatively complex and makes the soldering connection difficult to remove the connector pins if this is necessary for repair reasons. The main disadvantage of a wave solder attachment, however, is the associated heating of the circuit board, which can lead to damage, in particular warping, of the circuit board.
Um diese Nachteile zu beheben, ist man auf den Einsatz von Kontaktstiften übergegangen, die einen durch einen Prägevorgang hergestellten Sitzabschnitt aufweisen, über welchen sie in der entsprechenden öffnung in der Leiterplatte verankert sind. Bei einem bekannten Kontaktstift dieser Bauart (US-PS 3 824 554) sind durch zwei in den Drahtquerschnitt eingebrachte Längsnuten zwei Außenabschnitte begrenzt, die spitze Außenkanten aufweisen, mit denen sich der Kontaktstift in den Rand der öffnungen festkrallt. Die Verankerung wird im wesentlichen durch die beim Einpressen infolge elastischer Verformung der Außenabschnitte aufgebauten Rückstellkräfte bewirkt, die zur Folge haben, daß sich der Kontaktstift im Sitzabschnitt mit den Außenkanten der beiden Außenabschnitte in die öffnungswand der Leiterplatte einkrallt. Infolge der elastischen Verformung der Außenabschnitte nach hinten ist ein Ausgleich von Toleranzabweichungen möglich. Derartige Kontaktstifte mit flexiblem Sitzabschnitt besitzen gegenüber den starr durch Schwalllöten befestigten Kontaktstiften Vorteile, so daß sie sehr weite Anwendung gefunden haben. Allerdings ergeben sich aufgrund der innewohnenden Flexibilität Schwierigkeiten für die Berechnung der Stärke des Preßsitzes, welche sich nicht zuverlässig vorausbestimmen läßt.To overcome these disadvantages, the use of contact pins has been adopted, which have a seat section produced by an embossing process, via which they are anchored in the corresponding opening in the printed circuit board. In a known contact pin of this type (US Pat. No. 3,824,554), two outer sections are delimited by two longitudinal grooves introduced into the wire cross section, which have pointed outer edges with which the contact pin claws into the edge of the openings. The anchoring is essentially caused by the restoring forces built up during the pressing in due to elastic deformation of the outer sections, which result in the contact pin in the seat section clawing into the opening wall of the printed circuit board with the outer edges of the two outer sections. As a result of the elastic deformation of the outer sections to the rear, tolerance deviations can be compensated for. Such contact pins with a flexible seat section have advantages over the contact pins rigidly secured by wave soldering, so that they have been used very widely. However, due to the inherent flexibility, there are difficulties in calculating the strength of the press fit, which cannot be reliably predicted.
Schließlich ist ein Kontaktstift bekannt (US-PS 4 274 699), bei dem eine zentrale stegartige Stauchungszone zwei Außenabschnitte miteinander verbindet, welche zur Anlage an den Rand der Leiterplattenöffnung dienen. Beim Einpressen des Kontaktstifts soll im wesentlichen eine plastische Verformung im Bereich der Stauchungszone bewirkt werden.Finally, a contact pin is known (US Pat. No. 4,274,699) in which a central web-like compression zone has two outer surfaces connects sections together, which are used to abut the edge of the circuit board opening. When the contact pin is pressed in, a plastic deformation is essentially to be brought about in the region of the compression zone.
Hierzu ist der zentrale Steg vergleichweise schmal ausgebildet. Bei der Verformung infolge des Einpressens des Stifts in die entsprechende Leiterplattenöffnung kommt es zu einem seitlichen Falten bzw. Ausknicken des Stegs, wodurch es jedoch nicht zu einer überwiegend plastischen Verformung, vielmehr zu einer Verformung mit einem wesentlichen elastischen Anteil und damit zum Aufbau entsprechend großer elastischer Rückstellkräfte kommt. Durch dieses seitliche Falten bzw. Ausbiegen des Stegs kann der Stift zumindest in gewissem Umfang wieder in seine Ausgangsstellung federn, falls er wieder aus der Leiterplattenöffnung entnommen wird. Im Extremfall kann der Kontaktstift bei entsprechender Belastung über die Schergrenze hinaus im Stegbereich scheren, so daß sich im Sitzabschnitt zwei voneinander getrennte Schenkel bilden, die wiederum einen Halt des Kontaktstifts innerhalb der Leiterplattenöffnung durch elastische Rückstellkräfte bewirken. Der Nachteil des bekannten Kontaktstifts ist somit darin zu sehen, daß eine definierte plastische Verformung nicht stattfinden kann, vielmehr ein wesentlicher Anteil an elastischen Rückstellkräften nach dem Einpressen vorhanden ist und sich infolge des seitlichen Ausbiegens bzw. Ausknickens des Stegs beim Einpressen zuverlässige Aussagen über die Stärke des Preßsitzes nicht machen lassen.For this purpose, the central web is comparatively narrow. When deformed as a result of the pin being pressed into the corresponding printed circuit board opening, the web is laterally folded or buckled, which, however, does not result in a predominantly plastic deformation, but rather in a deformation with a substantial elastic component and thus to build up a correspondingly large elastic Restoring forces is coming. Due to this lateral folding or bending out of the web, the pin can spring back to its initial position at least to a certain extent if it is removed again from the circuit board opening. In extreme cases, the contact pin can shear beyond the shear limit in the web area with a corresponding load, so that two separate legs are formed in the seat section, which in turn cause the contact pin to be held within the circuit board opening by elastic restoring forces. The disadvantage of the known contact pin is therefore to be seen in the fact that a defined plastic deformation cannot take place, rather a substantial proportion of elastic restoring forces are present after the pressing in and due to the lateral bending or buckling of the web when pressing in, reliable statements about the strength are made of the press fit.
Aufgabe der Erfindung ist es, einen Kontaktstift zu schaffen, der eine kontrollierte Stauchung ohne seitliches Ausknicken beim Einpreßvorgang und damit eine stabilisierte Stauchung ermöglicht.The object of the invention is to provide a contact pin which enables a controlled compression without lateral buckling during the press-in process and thus a stabilized compression.
Diese Aufgabe wird durch die im kennzeichnenden Teil des Patentanspruchs 1 enthaltenen Merkmale gelöst.This object is achieved by the features contained in the characterizing part of
Nach Maßgabe der Erfindung ist der Steg mit seitlichen Verdickungen versehen, wodurch beim Einpressen des Kontaktstifts und der dabei erfolgenden plastischen Verformung ein seitliches Ausweichen des Materials innerhalb der Stauchungszone ausgeschlossen ist. Vielmehr wird die Deformation in die Mittelzone des Kontaktstifts, also in die Stauchungszone, stabilisiert, indem das Material radial in die Mitte des Kontaktstifts, also in die Stauchungszone, verdrängt wird. Die Außenabschnitte werden hierbei nicht verformt, sie werden vielmehr in Richtung einer gleichbleibenden Achse radial zur Achse des Kontaktstiftes zusammengedrückt und damit keiner Deformation bzw. Biegung unterworfen. Es erfolgt somit im wesentlichen eine Reduzierung der radialen Länge des Kontaktstifts im Sitzabschnitt quer zur eigentlichen Längsachse des Kontaktstiftes. Das Material sammelt sich hierbei im wesentlichen innerhalb des Stegbereiches, der zu einer balligen Kugel zusammengedrückt wird.According to the invention, the web is provided with lateral thickenings, whereby lateral deflection of the material within the compression zone is excluded when the contact pin is pressed in and the plastic deformation that occurs in the process. Rather, the deformation in the central zone of the contact pin, that is to say in the compression zone, is stabilized by displacing the material radially into the center of the contact pin, that is to say in the compression zone. The outer sections are not deformed here, rather they are pressed together in the direction of a constant axis radially to the axis of the contact pin and are therefore not subjected to any deformation or bending. There is thus essentially a reduction in the radial length of the contact pin in the seat section transverse to the actual longitudinal axis of the contact pin. The material collects essentially within the web area, which is compressed into a spherical ball.
In vorteilhafter Weise ist die Verdickung ballig geformt, insbesondere kreissegmentförmig.The thickening is advantageously spherical, in particular in the form of a segment of a circle.
In vorteilhafter Weise sind die Verdickungen nur abschnittsweise über die Länge des Sitzabschnitts vorgesehen und durch verdickungsfreie Abschnitte unterbrochen. Dadurch kann in vorteilhafter Weise die für die Stauchung beim Einpressen erforderliche Kraft reguliert werden.The thickenings are advantageously provided only in sections over the length of the seat section and are interrupted by thickening-free sections. As a result, the force required for the compression during compression can be regulated in an advantageous manner.
Nach Maßgabe der Erfindung kommt es also zu einer kontrollierten und stabilisierten plastischen Verformung des Steges, wobei der Kontaktstift nach dem Einpreßvorgang infolge dieser Verformung fest und starr innerhalb der entsprechenden Leiterplattenöffnung sitzt. Durch die plastische Materialumformung in der Stauchungszone können Toleranzunterschiede ohne weiteres kompensiert werden. Die Stauchungszone schließt ein weitergehendes Zurückweichen der Anlageabschnitte des Sitzabschnittes aus, wie es bei Kontaktstiften mit einem größeren Anteil an elastischer Verformung der Fall ist.According to the invention, there is therefore a controlled and stabilized plastic deformation of the web, the contact pin being seated firmly and rigidly within the corresponding circuit board opening after the press-in process as a result of this deformation. Through the plastic material reshaping in the compression zone, tolerance differences can be easily compensated. The compression zone precludes further receding of the contact sections of the seat section, as is the case with contact pins with a greater proportion of elastic deformation.
Aufgrund der abgerundeten Außenkanten der Außenabschnitte wird eine Verformung im Kontaktbereich zwischen dem Kontaktstift und der Leiterplattenöffnung vermieden, die vielmehr nur im Bereich des Steges stattfindet. Das heißt, die abgerundeten Außenkanten, die überdies auch eine schonende Behandlung der öffnungswand der Leiterplattenöffnung mit sich bringen, bedingen eine Verlagerung des Materialflusses beim Pressen des Kontaktstifts in den zentralen Bereich, in welchem sich die Stauchungszone befindet.Due to the rounded outer edges of the outer sections, deformation in the contact area between the contact pin and the circuit board opening is avoided, which rather takes place only in the area of the web. This means that the rounded outer edges, which also bring about a gentle treatment of the opening wall of the circuit board opening, cause the material flow to be shifted when the contact pin is pressed into the central area in which the compression zone is located.
Nachfolgend werden Ausführungsbeispiele der Erfindung anhand der Zeichnung beschrieben. Darin zeigen:
- Fig. 1 einen Querschnitt durch die Einpreßzone eines Kontaktstifts vor dem Einpreßvorgang,
- Fig. 2 einen Querschnitt durch die Einpreßzone des in Fig. 1 dargestellten Kontaktstifts nach dem Einpreßvorgang, sowie
- Fig. 3 eine perspektivische Ansicht der Einpreßzone eines Kontaktstifts mit zwei Schnittdarstellungen.
- 1 shows a cross section through the press-in zone of a contact pin before the press-in process,
- Fig. 2 shows a cross section through the press-in zone of the contact pin shown in Fig. 1 after the press-in process, and
- Fig. 3 is a perspective view of the press-in zone of a contact pin with two sectional views.
Die Fig. 1 und 2 zeigen den Querschnitt eines Sitzabschnitts eines Kontaktstifts für Leiterplatten, mit welchem der Kontaktstift mit Preßsitz in einer in Fig. 2 punktiert angedeuteten öffnung mit kreisrundem Querschnitt in einer nicht dargestellten Leiterplatte aufgenommen ist. Wie die Schnittdarstellung zeigt, besitzt der allgemein mit 1 bezeichnete Sitzabschnitt einen eine vorbestimmte Stauchungszone S darstellenden Steg 2, der zentral angeordnet ist und sich längs der Achse des Kontaktstifts im wesentlichen über die axiale Länge des Sitzabschnittes 1 bzw. der Einpreßzone erstreckt. Die durch den zentralen Steg 2 gebildete Stauchungszone S geht über im Grundriß trompetenförmige Aufweitungen 3 in bezüglich der Stiftachse radial einander gegenüberliegend angeordnete Außenabschnitte 4 über, die zur Anlage am Rand der öffnung der Leiterplatte nach dem Einpressen dienen. Zur schonenden Behandlung der öffnungswand der Leiterplatten sind die Außenkanten 5 der Außenabschnitte 4 abgerundet. Über die abgerundeten Außenkanten 5 gelangen die Außenabschnitte beim Einpressen des Kontaktstifts in die Leiterplatte mit dem Rand der Leiterplattenöffnung in Preßkontakt, wie in Fig. 2 angedeutet ist. Die Außenabschnitte 4 sind aus einem im wesentlichen rechteckigen Grundriß gebildet, was darauf beruht, daß der Sitzabschnitt bzw. die Einpreßzone des Kontaktstifts aus einem Kontaktstift mit rechteckförmigem, insbesondere quadratischen Querschnitt durch Prägen mittels zweier gegenüberliegender Stempel geformt ist. Die Breite der Stempel entspricht hierbei im wesentlichen der radialen Abmessung des Stegs der Stauchungszone.1 and 2 show the cross section of a seat section of a contact pin for printed circuit boards, with which the contact pin with a press fit is received in an opening with a circular cross section, indicated by dotted lines in FIG. 2, in a printed circuit board (not shown). As the sectional view shows, the one generally designated 1 has Seat section a web 2 representing a predetermined compression zone S, which is arranged centrally and extends along the axis of the contact pin substantially over the axial length of the
Wie Fig. 1 zeigt, ist der Steg 2 der Stauchungszone S beidseitig mit ballig geformten Verdickungen 6 versehen, die im dargestellten Ausführungsbeispiel etwa kreissegmentförmig sind. Die Verdickungen 6 sind zu der durch die Stiftachse laufenden radialen Achse R symmetrisch. Entsprechend der Darstellung in Fig. 1 erstrecken sich die Verdickungen im wesentlichen über die gesamte Breite des Steges 2 und gehen unmittelbar über eine Rundung 7 in die trompetenförmigen Aufweitungen 3 des Kontaktstifts über.As shown in FIG. 1, the web 2 of the compression zone S is provided on both sides with spherically
Die Darstellung nach Fig. 2 zeigt, daß nach dem erfolgten Einpressen die plastische Materialverformung ausschließlich im Bereich der Stauchungszone S stattgefunden hat, die entsprechend verdickt worden ist. Im dargestellten Ausführungsbeispiel ist die Stauchungszone S in etwa kugelförmig deformiert worden. Hierbei haben sich die beiden Außenabschnitte 4, die im wesentlichen keiner Verformung unterworfen worden sind, in Richtung der Radialachse R aufeinander zu bewegt, was durch entsprechende Reduzierung der Breite und entsprechende Verdickung der Stauchungszone S bewirkt worden ist. Die radiale Länge, also die Länge senkrecht zur Achse des Kontaktstifts hat sich von der Länge 11 der Fig. 1 auf die Länge 12 gemäß Fig. 2 verringert.The representation according to FIG. 2 shows that after the pressing in, the plastic material deformation only in the area of the compression zone S, which has been thickened accordingly. In the exemplary embodiment shown, the compression zone S has been deformed into an approximately spherical shape. Here, the two
Bei der Ausführungsform nach Fig. 3 erstrecken sich die beiden Verdickungen 6 nicht über die gesamte Länge des Sitzabschnitts 1, sondern sind bereichsweise bzw. abschnittsweise über die Länge des Sitzabschnitts vorgesehen. Zwischen den einzelnen Verdickungen 6, die jedoch wiederum symmetrisch zur Radialachse R ausgebildet sind, erstrecken sich verdickungsfreie Abschnitte, wie aus dem Schnitt II-II in Fig. 3 hervorgeht. Diese Abschnitte besitzen eine gleichmäßige Stegdicke. Der Steg ist hierbei geradlinig geformt, wie sich gleichfalls aus dem Schnitt II-II der Fig. 3 ergibt. Die Stegdicke entspricht hierbei in etwa der geringsten Dicke der Verdickungen 6. Bei der Ausführungsform nach Fig. 3 geht die Stauchungszone S nicht über Rundungen, vielmehr spitzwinklig in kegelförmige Aufweitungen 3 zu den Außenabschnitten 4 über. Entsprechend der dargestellten Ausführungsform sind vier Verdickungen 6 auf jeder Seite des Kontaktstifts vorgesehen, wobei die beiden äußeren Verdickungen sich zum Ende des Sitzabschnitts hin verjüngen und im übrigen länger ausgebildet sind als die beiden innenliegenden Verdickungen.In the embodiment according to FIG. 3, the two
Claims (9)
dadurch gekennzeichnet , daß der Steg (2) der Stauchungszone (S) mindestens bereichsweise über die Länge des Sitzabschnitts (1) beidseitig Verdickungen (6) aufweist, die zueinander symmetrisch (Achse R) ausgebildet sind.1. Contact pin for electronic components, in particular printed circuit boards, which can be inserted with a press fit into an opening in the printed circuit board, the seat section (1) of the pin in the printed circuit board having at least two outer sections (4) abutting the edge of the printed circuit board opening, and the contact pin in the seat section is provided with a central, web-like compression zone (S) which connects the two opposite outer sections to one another and in which a plastic deformation takes place during the pressing-in process,
characterized in that the web (2) of the compression zone (S) has, at least in regions over the length of the seat section (1), thickenings (6) on both sides which are symmetrical to one another (axis R).
dadurch gekennzeichnet , daß die Verdickungen (6) sich jeweils über die gesamte Stegbreite erstrecken.2. contact pin according to claim 1,
characterized in that the thickenings (6) each extend over the entire web width.
dadurch gekennzeichnet , daß die Verdickungen ballig geformt sind.3. contact pin according to claim 1 or 2,
characterized in that the thickenings are spherical.
dadurch gekennzeichnet , daß die Verdickungen (6) je kreissegmentförmig ausgebildet sind.4. contact pin according to one of claims 1 to 3,
characterized in that the thickenings (6) are each formed in the shape of a segment of a circle.
daß die Verdickungen (6) sich im wesentlichen über die gesamte Länge des Sitzabschnitts (1) erstrecken.5. Contact pin according to one of the preceding claims, characterized in
that the thickenings (6) are essentially ge Entire length of the seat portion (1) extend.
daß die Stauchungszone (S) in Längsrichtung des Sitzabschnitts (1) zwischen den Verdickungen (6) verdickungsfreie Abschnitte aufweist, in denen der Steg (2) über die Stegbreite im wesentlichen gleichmäßige Dicke aufweist.6. Contact pin according to one of the preceding claims, characterized in
that the compression zone (S) in the longitudinal direction of the seat section (1) between the thickenings (6) has thickening-free sections in which the web (2) has a substantially uniform thickness over the web width.
daß die Stauchungszone (S) mit einer trompetenförmigen oder kegelförmigen Aufweitung (3) in die Außenabschnitte (4) übergeht, die im wesentlichen rechteckförmigen Grundriß mit zwei abgerundeten Außenkanten (5) aufweist.7. Contact pin according to one of the preceding claims, characterized in
that the compression zone (S) with a trumpet-shaped or conical widening (3) merges into the outer sections (4), which has a substantially rectangular plan with two rounded outer edges (5).
dadurch gekennzeichnet , daß die Verdickungen (6) über eine Rundung (7) oder eine spitze Kante in die trompetenförmigen oder kegelförmigen Aufweitungen (3) übergehen.8. contact pin according to claim 7,
characterized in that the thickenings (6) merge into the trumpet-shaped or conical widenings (3) via a rounding (7) or a pointed edge.
daß der Kontaktstift in der Einpreßzone aus einem Körper mit quadratischem Querschnitt geprägt ist.9. Contact pin according to one of the preceding claims, characterized in that
that the contact pin is shaped in the press-in zone from a body with a square cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85100511T ATE30813T1 (en) | 1984-02-16 | 1985-01-18 | CONTACT PIN FOR ELECTRONIC COMPONENTS, PARTICULARLY CIRCUIT BOARDS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8404681U | 1984-02-16 | ||
| DE8404681U DE8404681U1 (en) | 1984-02-16 | 1984-02-16 | Contact pin for electronic components, in particular circuit boards |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0152769A2 true EP0152769A2 (en) | 1985-08-28 |
| EP0152769A3 EP0152769A3 (en) | 1985-10-02 |
| EP0152769B1 EP0152769B1 (en) | 1987-11-11 |
Family
ID=6763634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85100511A Expired EP0152769B1 (en) | 1984-02-16 | 1985-01-18 | Contact pin for electronic components, especially printed-circuit boards |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0152769B1 (en) |
| AT (1) | ATE30813T1 (en) |
| DE (2) | DE8404681U1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0132704A2 (en) * | 1983-07-23 | 1985-02-13 | Guglhör, Magdalena | Contact pin for electronic components, especially printed circuit boards |
| US4857019A (en) * | 1988-02-29 | 1989-08-15 | Molex Incorporated | Terminal pin with s-shaped complaint portion |
| EP0367660A2 (en) * | 1988-11-01 | 1990-05-09 | Elfab Corporation | Compliant electrical connector pin |
| EP0372368A2 (en) * | 1988-12-02 | 1990-06-13 | Siemens Aktiengesellschaft | Contact element to be pressed in the holes of a printed-circuit board |
| DE3909310A1 (en) * | 1989-03-21 | 1990-09-27 | Unimet Gmbh | Contact 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 |
| US11152723B2 (en) | 2017-08-18 | 2021-10-19 | Robert Bosch Gmbh | Contact pin for pressing into a printed circuit board and contact arrangement |
| DE102022129018A1 (en) | 2022-11-03 | 2024-05-08 | Turck Holding Gmbh | Connector for a printed circuit board, printed circuit board and method for its manufacture |
| DE102022133352A1 (en) | 2022-12-14 | 2024-06-20 | ept Holding GmbH & Co. KG | Press-in pin and press-in connection |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691979A (en) * | 1983-08-04 | 1987-09-08 | Manda R & D | Compliant press-fit electrical contact |
| DE102006048337B3 (en) * | 2006-10-12 | 2008-02-14 | Florian Geissler | Metallic pin for electronic components, to fit into circuit board holes, has a pressed-in zone giving structured legs with a center link between them |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005356A1 (en) * | 1978-04-27 | 1979-11-14 | E.I. Du Pont De Nemours And Company | An electrical terminal and an edgecard connector incorporating the same |
| EP0088582A1 (en) * | 1982-03-04 | 1983-09-14 | E.I. Du Pont De Nemours And Company | Press-fit electrical terminals |
-
1984
- 1984-02-16 DE DE8404681U patent/DE8404681U1/en not_active Expired
-
1985
- 1985-01-18 AT AT85100511T patent/ATE30813T1/en not_active IP Right Cessation
- 1985-01-18 DE DE8585100511T patent/DE3560973D1/en not_active Expired
- 1985-01-18 EP EP85100511A patent/EP0152769B1/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005356A1 (en) * | 1978-04-27 | 1979-11-14 | E.I. Du Pont De Nemours And Company | An electrical terminal and an edgecard connector incorporating the same |
| EP0088582A1 (en) * | 1982-03-04 | 1983-09-14 | E.I. Du Pont De Nemours And Company | Press-fit electrical terminals |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0132704A2 (en) * | 1983-07-23 | 1985-02-13 | Guglhör, Magdalena | Contact pin for electronic components, especially printed circuit boards |
| EP0132704A3 (en) * | 1983-07-23 | 1988-04-20 | Guglhör, Magdalena | Contact pin for electronic components, especially printed circuit boards |
| US4857019A (en) * | 1988-02-29 | 1989-08-15 | Molex Incorporated | Terminal pin with s-shaped complaint portion |
| 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 |
| EP0372368A2 (en) * | 1988-12-02 | 1990-06-13 | Siemens Aktiengesellschaft | Contact element to be pressed in the holes of a printed-circuit board |
| EP0372368A3 (en) * | 1988-12-02 | 1990-12-12 | Siemens Aktiengesellschaft | Contact element to be pressed in the holes of a printed-circuit board |
| DE3909310A1 (en) * | 1989-03-21 | 1990-09-27 | Unimet Gmbh | Contact 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 |
| US11152723B2 (en) | 2017-08-18 | 2021-10-19 | Robert Bosch Gmbh | Contact pin for pressing into a printed circuit board and contact arrangement |
| DE102022129018A1 (en) | 2022-11-03 | 2024-05-08 | Turck Holding Gmbh | Connector for a printed circuit board, printed circuit board and method for its manufacture |
| DE102022133352A1 (en) | 2022-12-14 | 2024-06-20 | ept Holding GmbH & Co. KG | Press-in pin and press-in connection |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0152769A3 (en) | 1985-10-02 |
| DE8404681U1 (en) | 1985-01-03 |
| ATE30813T1 (en) | 1987-11-15 |
| EP0152769B1 (en) | 1987-11-11 |
| DE3560973D1 (en) | 1987-12-17 |
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