EP0236963B1 - Process for manufacturing contact members - Google Patents

Process for manufacturing contact members Download PDF

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Publication number
EP0236963B1
EP0236963B1 EP87103171A EP87103171A EP0236963B1 EP 0236963 B1 EP0236963 B1 EP 0236963B1 EP 87103171 A EP87103171 A EP 87103171A EP 87103171 A EP87103171 A EP 87103171A EP 0236963 B1 EP0236963 B1 EP 0236963B1
Authority
EP
European Patent Office
Prior art keywords
contact
contact spring
mat
springs
limiting strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87103171A
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German (de)
French (fr)
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EP0236963A2 (en
EP0236963A3 (en
Inventor
Gerhard Neumann
Paul-Rainer Molitor
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.)
Otto Dunkel GmbH
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Otto Dunkel GmbH
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Filing date
Publication date
Application filed by Otto Dunkel GmbH filed Critical Otto Dunkel GmbH
Priority to AT87103171T priority Critical patent/ATE83875T1/en
Publication of EP0236963A2 publication Critical patent/EP0236963A2/en
Publication of EP0236963A3 publication Critical patent/EP0236963A3/en
Application granted granted Critical
Publication of EP0236963B1 publication Critical patent/EP0236963B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
    • 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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • 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 a method for producing contact elements in the form of contact spring sockets or spring-loaded plug pins, with a plurality of contact springs which are arranged next to one another and can be fixed at one end to a carrier part and which are curved for making contact with the mating contact.
  • the invention has for its object to provide a simple and inexpensive manufacturing process that enables multiple plug connections with small space requirements for the transmission of high currents despite small plug-in forces in a particularly efficient manner.
  • the manufacturing method according to the invention has the following method steps: arranging equally long Contact spring wire sections at a predetermined distance and in a mutually aligned parallel position, supplying a limiting band to at least one of the ends of the contact springs and connecting the contact springs to the limiting band during the advance of the contact springs transversely to the contact spring axis to form a contact spring mat, bulging of the contact springs transversely to the plane of the contact spring mat, Applying a galvanic coating, severing the delimitation band or bands to form contact spring units and transferring the contact spring units into a cylindrical, rolled form.
  • the individual supply of the contact springs to a socket body can advantageously be dispensed with.
  • the described way of creating the contact spring mat from contact spring wire sections, which are connected at the ends, also eliminates the considerable problem that has arisen when using a meandering contact spring mat, namely the conversion into a cylindrical shape, since there are no arcuate transition wire regions that are one oppose such cylindrical shape.
  • a torsional stress on the contact spring wire sections within the contact spring wire mat when it is converted into a cylindrical shape is also practically impossible. It is also no longer necessary to prefabricate cylindrical contact spring assemblies, as is proposed in DE-C-11 13 023.
  • the limiting band used is expediently made of a profiled shaped wire, the outer surface of which forms an acute angle with the axis of the contact spring wire sections. In this way, the outer surface of the shaped wire ensures that the mating contact is aligned eccentrically with respect to the contact element.
  • a particularly stable and safe design results if a limiting band is used, which is formed by a U-shaped copper band in cross section, the two legs of which enclose the ends of the successive contact springs between them.
  • the contact spring wire 1 which is used to produce the contact elements and is made of a copper-beryllium alloy, is directed from a coil 2 and cut into sections 4 of a corresponding length using a cutting tool 3. They are then moved further in the direction of arrow 5 transversely to their axial direction with the aid of a transport device (not illustrated in more detail). With the conveying speed of the sections 4, a limiting belt 8 or 9 is fed from the coils 6 and optionally also 7 to the front ends of the sections 4 moved forward at a predetermined distance from one another in the directed state. At schematically indicated fastening stations 10 and 11, the ends of the contact springs 4 are connected to the limiting bands 8 and 9, respectively, by welding, preferably laser welding, to form a contact spring mat 12.
  • the contact springs 4 are given a radial bulge transversely to the plane of the contact spring mat 12, the distance between the limiting bands 8 and 9 from one another reduced accordingly.
  • the contact spring mat 12 then passes through an electroplating station, of which pick-up or transport rollers 14 are illustrated schematically.
  • the contact spring mat 12 is given a high-quality finish, for example with gold, in the area of the contact points, with the aid of a schematically illustrated wetting device 15, which can be a titanium electrode with textile covering for wetting the contact points.
  • a mat section of the desired length is separated from the contact spring mat 12 with the aid of a cutting device 16 and is rolled cylindrically in a subsequent processing step.
  • Either the contact element thus formed takes the form of a spring-loaded plug pin 17 or, as illustrated in FIGS. 4 and 5, the shape of a contact spring bushing 18.
  • the cylindrical rolling process takes place in such a way that the radial bulges 19 are directed outwards, whereas in the second case they are directed inwards.
  • Fig. 6 it can be seen how the contact spring wire sections 4 are each connected on the end face with a limiting band 8 and 9 in the form of a round wire.
  • profiled shaped wires 8 ⁇ or 9 ⁇ can also be used as boundary bands. While the boundary band 9 ⁇ has a rectangular cross-section, the boundary band 8 ⁇ is shaped such that it lies laterally with a side shoulder 20 on the sections 4. The resulting broadening of the boundary band 8 'in conjunction with the inclined outer surface 21, which includes an acute angle with the axis of the contact springs 4, ensures that with eccentric approach of the counter-contact, not shown, for its precise alignment the contact element is taken care of.
  • FIG. 8 a modified embodiment is illustrated, in which the limiting band 8 or 9 is formed by a U-shaped copper strip in cross section, the two legs of which enclose the ends of the successive contact springs 4 between them. Furthermore, this FIG. 8 illustrates the possibility of combining two mat-like contact spring units over a central limiting band 22 common to them, forming a double unit which enables use as a double socket.
  • FIG. 9 very schematically shows the possibility of arranging the contact element in the form of a spring-loaded plug pin 17 on a carrier pin 23.
  • Flanged edges 24 and 25 serve to secure the position of the spring-loaded plug pin 17.
  • FIG. 10 shows the possibility of using the contact element designed in the form of a contact spring bushing 18 in a carrier bushing 26, and FIG. 11 illustrates the fixing of two contact spring bushings 18 in a coaxial position within a double carrier bushing 27 common to them.
  • the carrier pin 23 and the carrier bushes 26 and 27 are, as shown in FIGS. 9 to 11, turned parts produced in a conventional manner.
  • contact springs 4 e.g. the contact elements in the form of the contact spring bushing 18, on the other hand, have the advantageous possibility of being inserted into sleeves prefabricated as a drawn part with a wall thickness of 0.1 mm and being fixed in them by simply flanging the sleeve edges. This can also be done in connection with pressing the one sleeve edge onto a comparatively simpler support pin.

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  • Manufacturing Of Electrical Connectors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

A contact element in the form of a spring contact jack or spring plug pin has a plurality of mutually laterally disposed spring contacts which can be attached at one end to a support piece and which are radially curved in order to provide contact with an opposing contact; and further relates to a method of manufacturing the contact element.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von Kontaktelementen in Form von Kontaktfederbuchsen bzw. gefederten Steckerstiften, mit einer Vielzahl von nebeneinander angeordneten, an ihrem einen Ende an einem Trägerteil festlegbaren Kontaktfedern, die zur Kontaktgabe mit dem Gegenkontakt gewölbt sind.The invention relates to a method for producing contact elements in the form of contact spring sockets or spring-loaded plug pins, with a plurality of contact springs which are arranged next to one another and can be fixed at one end to a carrier part and which are curved for making contact with the mating contact.

Es ist bereits bekannt (DE-OS 25 28 003), bei der Herstellung von Kontaktfederbuchsen zunächst eine Kontaktfedermatte aus mäanderförmig gebogenem Kontaktfederdraht anzufertigen. In dieser Kontaktfedermatte stehen die parallel zueinander verlaufenden Kontaktfederdrahtabschnitte miteinander über bogenförmig gekrümmte Abschnitte in Verbindung. Als nachteilig hat sich die Tatsache herausgestellt, daß ein bestimmter Krümmungsradius bei bogenförmiger Krümmung in der Praxis nicht unterschritten werden kann, woraus sich in nachteiliger Weise ein vorbestimmter Mindestabstand der Kontaktfederdrahtabschnitte ergibt. Ganz abgesehen von der schwierigen Handhabung der Kontaktfedermatte aufgrund ihrer zwangsläufig gegebenen Dehnbarkeit hat sich vor allem die Tatsache als ungünstig herausgestellt, daß sich die bogenförmig gekrümmte Abschnitte in der Biegung um eine Achse parallel zu den Kontaktfederdrahtabschnitten widersetzen. Die Überführung der Kontaktfedermatte in eine bleibende zylindrische Form setzt deshalb ein Tordieren der Kontaktfederdrahtabschnitte voraus, dessen Maß sich jedoch praktisch nicht vorbestimmen läßt. Kontaktfederbuchsen mit mäanderförmig vorgebenenem Kontaktfederdraht haben sich deshalb in der Praxis nicht durchsetzen können, insbesondere nicht in Fällen einer Kleinstbauweise.It is already known (DE-OS 25 28 003) to first manufacture a contact spring mat from meandering bent contact spring wire in the manufacture of contact spring bushings. In this contact spring mat, the contact spring wire sections running parallel to one another are connected to one another via curved sections. The fact that a certain radius of curvature in the case of an arcuate curvature is not a disadvantage has turned out to be disadvantageous can be fallen below, which disadvantageously results in a predetermined minimum distance of the contact spring wire sections. Quite apart from the difficult handling of the contact spring mat due to its inevitably given extensibility, the fact that the arcuate curved sections oppose the bend around an axis parallel to the contact spring wire sections has proven to be particularly unfavorable. The conversion of the contact spring mat into a permanent cylindrical shape therefore presupposes twisting of the contact spring wire sections, the dimensions of which, however, cannot be predetermined in practice. Contact spring bushings with a meandering contact spring wire have therefore not been able to establish themselves in practice, especially not in the case of a small design.

Bei der Herstellung von Kontaktfederbuchsen ist man deshalb dazu übergegangen (DE-C-11 13 023), eine Vielzahl gleich langer, nebeneinader angeordneter Kontaktfedern an ihren Enden in einem Ring mit Axialnut festzulegen, so daß sich eine zylindrische Kontaktfederbaueinheit ergibt, die in einem anschließenden Schritt in einem hülsenförmigen Kontaktkörper unter Wölbung der Kontaktfeder festgelgt wird. Die Vorfertigung der zylindrischen Kontaktfederbaueinheiten ist jedoch umständlich, aufwendig und deshalb kostspielig, d.h. für die Herstellung von großen Stückzahlen an Kontaktkörpern nicht geeignet.In the manufacture of contact spring bushings, therefore, it has become known (DE-C-11 13 023) to fix a plurality of equally long, side by side arranged contact springs at their ends in a ring with an axial groove, so that there is a cylindrical contact spring assembly, which in a subsequent Step is fixed in a sleeve-shaped contact body with curvature of the contact spring. However, the prefabrication of the cylindrical contact spring assemblies is cumbersome, complex and therefore expensive, i.e. not suitable for the production of large quantities of contact bodies.

Der Erfindung liegt die Aufgabe zugrunde, ein einfaches und kostengünstiges Herstellungsverfahren zu schaffen, das es ermöglicht, Vielfachsteckverbindungen mit geringem Raumbedarf für die Übertragung hoher Ströme trotz kleiner Steckkräfte auf besonders rationelle Weise zu fertigen.The invention has for its object to provide a simple and inexpensive manufacturing process that enables multiple plug connections with small space requirements for the transmission of high currents despite small plug-in forces in a particularly efficient manner.

Das Herstellungsverfahren nach der Erfindung, bei dem diese Aufgabe gelöst ist, weist folgende Verfahrensschritte auf: Anordnen von gleich langen Kontaktfederdrahtabschnitten in vorbestimmtem Abstand und in zueinander ausgerichteter paralleler Lage, Zufuhr eines Begrenzungsbandes zu mindestens einem der Enden der Kontaktfedern und Verbinden der Kontaktfedern mit dem Begrenzungsband während des Vorschubs der Kontaktfedern quer zur Kontaktfederachse unter Bildung einer Kontaktfedermatte, Auswölben der Kontaktfedern quer zur Ebene der Kontaktfedermatte, Aufbringen eines galvanischen Überzugs, Durchtrennen des bzw. der Begrenzungsbänder zur Bildung von Kontaktfedereinheiten sowie Überführen der Kontaktfedereinheiten in zylindrisch gerollte Form. Bei diesem Verfahren kann in vorteilhafter Weise auf die Einzelzufuhr der Kontaktfedern zu einem Buchsenkörper verzichtet werden. Der dargelegte Weg der Schaffung der Kontaktfedermatte aus Kontaktfederdrahtabschnitten, die endseitig miteinander verbunden sind, beseitigt auch das erhebliche Problem, das sich bei Einsatz einer mäanderförmigen Kontaktfedermatte gestellt hat, nämlich die Überführung in eine zylindrische Form, da keine bogenförmigen Übergangsdrahtbereiche vorhanden sind, die sich einer derartigen zylindrischen Formgebung widersetzen. Eine Torsionsbeanspruchung der Kontaktfederdrahtabschnitte innerhalb der Kontakfederdrahtmatte bei deren Überführung in zylindrische Form ist ebenfalls praktisch ausgeschlossen. Es bedarf auch nicht mehr der Vorfertigung von zylindrischen Kontaktfederbaueinheiten, wie sie in der DE-C-11 13 023 vorgeschlagen wird.The manufacturing method according to the invention, in which this object is achieved, has the following method steps: arranging equally long Contact spring wire sections at a predetermined distance and in a mutually aligned parallel position, supplying a limiting band to at least one of the ends of the contact springs and connecting the contact springs to the limiting band during the advance of the contact springs transversely to the contact spring axis to form a contact spring mat, bulging of the contact springs transversely to the plane of the contact spring mat, Applying a galvanic coating, severing the delimitation band or bands to form contact spring units and transferring the contact spring units into a cylindrical, rolled form. In this method, the individual supply of the contact springs to a socket body can advantageously be dispensed with. The described way of creating the contact spring mat from contact spring wire sections, which are connected at the ends, also eliminates the considerable problem that has arisen when using a meandering contact spring mat, namely the conversion into a cylindrical shape, since there are no arcuate transition wire regions that are one oppose such cylindrical shape. A torsional stress on the contact spring wire sections within the contact spring wire mat when it is converted into a cylindrical shape is also practically impossible. It is also no longer necessary to prefabricate cylindrical contact spring assemblies, as is proposed in DE-C-11 13 023.

In fertigungstechnischer Hinsicht sehr günstig ist es, wenn die Kontaktfedern durch Laserverschweißung miteinander zu der mattenartigen Kontaktfedereinheit verbunden werden.In terms of manufacturing technology, it is very favorable if the contact springs are connected to one another by laser welding to form the mat-like contact spring unit.

Zweckmäßigerweise besteht das zum Einsatz gelangende Begrenzungsband aus einem profilierten Formdraht, dessen Außenfläche mit der Achse der Kontaktfederdrahtabschnitte einen spitzen Winkel einschließt. Auf diese Weise sorgt die Formdrahtaußenfläche bei einer exzentrischen Annäherung des Gegenkontakts für dessen genaue Ausrichtung auf das Kontaktelement.The limiting band used is expediently made of a profiled shaped wire, the outer surface of which forms an acute angle with the axis of the contact spring wire sections. In this way, the outer surface of the shaped wire ensures that the mating contact is aligned eccentrically with respect to the contact element.

Eine besonders stabile und sichere Ausführung ergibt sich, wenn ein Begrenzungsband Anwendung findet, das durch ein im Querschnitt U-förmiges Kupferband gebildet ist, dessen beide Schenkel die Enden der aufeinanderfolgenden Kontaktfedern zwischen sich einschließen.A particularly stable and safe design results if a limiting band is used, which is formed by a U-shaped copper band in cross section, the two legs of which enclose the ends of the successive contact springs between them.

Als sehr günstig hat es sich in weiterer Ausgestaltung erwiesen, wenn zwei mattenartige Kontaktfedereinheiten über ein ihnen gemeinsames Begrenzungsband zu einer den Einsatz als Doppelbuchse ermöglichenden Doppeleinheit zusammengefaßt werden.In a further embodiment, it has proven to be very favorable if two mat-like contact spring units are combined via a limiting band common to them to form a double unit which enables use as a double socket.

Zweckmäßigerweise werden vor dem zylindrischen Rollen der Kontaktfedereinheit ausschließlich die der Stromübertragung dienenden gewölbten Bereiche außenseitig galvanisch mit einem Goldüberzug versehen.Advantageously, before the cylindrical rolling of the contact spring unit, only the curved areas serving for current transmission are galvanically coated on the outside with a gold coating.

Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ergeben sich aus der folgenden Beschreibung und der Zeichnung, auf die bezüglich der Offenbarung aller nicht im Text beschriebenen Einzelheiten ausdrücklich verwiesen wird. Es zeigt:

Fig. 1
eine schematische Darstellung der Verfahrensschritte zur Herstellung eines Kontaktelementes,
Fig. 2 und 3
eine Seitenansicht und eine Draufsicht auf ein Kontaktelement in Form einer Kontaktfederbuchse,
Fig. 4 und 5
eine Seitenansicht und eine Draufsicht auf ein Kontaktelement in Form eines gefederten Steckerstiftes,
Fig. 6
einen Schnitt durch ein Kontaktfederelement mit einem durch einen Runddraht gebildeten Begrenzungsband,
Fig. 7
einen Schnitt durch ein Kontaktfederelement mit einem durch einen profilierten Formdraht gebildeten Begrenzungsband,
Fig. 8
einen Schnitt durch ein aus zwei Kontaktfedereinheiten zu einer Doppeleinheit zusammengefaßtes Kontaktfederelement,
Fig. 9
einen Schnitt durch einen Trägerstift mit einem auf ihn festgelegten Kontaktelement in Form eines gefederten Steckerstiftes,
Fig. 10
einen Schnitt durch eine Trägerbuchse mit einem in ihr festgelegten Kontaktelement in Form einer Kontaktfederbuchse, und
Fig. 11
einen Schnitt durch eine Doppelträgerbuchse mit zwei in ihr festgelegten Kontaktelementen in Form je einer Kontaktfederbuchse.
Further details, advantages and features of the invention result from the following description and the drawing, to which express reference is made to the disclosure of all details not described in the text. It shows:
Fig. 1
1 shows a schematic representation of the process steps for producing a contact element,
2 and 3
a side view and a plan view of a contact element in the form of a contact spring bushing,
4 and 5
2 shows a side view and a top view of a contact element in the form of a spring-loaded plug pin,
Fig. 6
3 shows a section through a contact spring element with a limiting band formed by a round wire,
Fig. 7
2 shows a section through a contact spring element with a limiting band formed by a profiled shaped wire,
Fig. 8
3 shows a section through a contact spring element combined from two contact spring units to form a double unit,
Fig. 9
2 shows a section through a carrier pin with a contact element fixed on it in the form of a spring-loaded plug pin,
Fig. 10
a section through a carrier bush with a contact element fixed in it in the form of a contact spring bushing, and
Fig. 11
a section through a double carrier socket with two contact elements defined in it in the form of a contact spring bushing.

Wie aus Fig. 1 ersichtlich, wird der der Herstellung der Kontaktelemente dienende Kontaktfederdraht 1 aus einer Kupfer-Beryllium-Legierung von einer Spule 2 kommend gerichtet und mit einem Schneidwerkzeug 3 in Abschnitte 4 übereinstimmender Länge zerteilt. Anschließend werden sie mit Hilfe einer nicht näher veranschaulichten Transportvorrichtung in Richtung des Pfeiles 5 quer zu ihrer Achsrichtung weiterbewegt. Mit der Fördergeschwindigkeit der Abschnitte 4 wird von Spulen 6 und gegebenenfalls auch 7 den stirnseitigen Enden der in vorbestimmtem Abstand zueinander vorbewegten Abschnitten 4 jeweils ein Begrenzungsband 8 bzw. 9 in gerichtetem Zustand zugeführt. An schematisch angedeuteten Befestigungsstationen 10 bzw. 11 erfolgt eine Verbindung der Enden der Kontaktfedern 4 mit den Begrenzungsbändern 8 bzw. 9, und zwar durch Verschweißung, vorzugsweise Laserverschweißung unter Bildung einer Kontaktfedermatte 12.As can be seen from FIG. 1, the contact spring wire 1, which is used to produce the contact elements and is made of a copper-beryllium alloy, is directed from a coil 2 and cut into sections 4 of a corresponding length using a cutting tool 3. They are then moved further in the direction of arrow 5 transversely to their axial direction with the aid of a transport device (not illustrated in more detail). With the conveying speed of the sections 4, a limiting belt 8 or 9 is fed from the coils 6 and optionally also 7 to the front ends of the sections 4 moved forward at a predetermined distance from one another in the directed state. At schematically indicated fastening stations 10 and 11, the ends of the contact springs 4 are connected to the limiting bands 8 and 9, respectively, by welding, preferably laser welding, to form a contact spring mat 12.

Im Zuge der Förderstrecke befinden sich Biege- bzw. Formstempel 13, von denen einer in um 90° verschwenkter Lage schematisch veranschaulicht ist. Mit Hilfe dieser Stempel 13 erhalten die Kontaktfedern 4 eine radiale Auswölbung quer zur Ebene der Kontaktfedermatte 12, wobei sich der Abstand der Begrenzungsbänder 8 und 9 voneinander entsprechend verringert. Die Kontaktfedermatte 12 durchläuft anschließend eine Galvanikstation, von der schematisch Aufnahme- bzw. Tranportrollen 14 veranschaulicht sind. In z.B. vernickeltem Zustand erhält die Kontaktfedermatte 12 im Bereich der Kontaktstellen eine Hochveredelung, z.B. mit Gold, und zwar mit Hilfe einer schematisch veranschaulichten Benetzungsvorrichtung 15, bei der es sich um eine Titanelektrode mit Textilbespannung zum Benetzen der Kontaktstellen handeln kann. Von der Kontaktfedermatte 12 wird mit Hilfe einer Schneideinrichtung 16 ein Mattenabschnitt gewünschter Länge abgetrennt, der in einem anschließenden Bearbeitungsschritt zylindrisch gerollt wird. Entweder erhält das so gebildete Kontaktelement, wie in den Fig. 2 und 3 veranschaulicht, die Form eines gefederten Steckerstiftes 17 oder, wie in Fig. 4 und 5 veranschaulicht, die Form einer Kontaktfederbuchse 18. Im ersten Fall erfolgt der zylindrische Rollvorgang derart, daß die radialen Wölbungen 19 nach außen gerichtet sind, wogegen sie im zweiten Fall nach innen gerichtet sind.In the course of the conveying path there are bending or forming punches 13, one of which is schematically illustrated in a position pivoted through 90 °. With the aid of these punches 13, the contact springs 4 are given a radial bulge transversely to the plane of the contact spring mat 12, the distance between the limiting bands 8 and 9 from one another reduced accordingly. The contact spring mat 12 then passes through an electroplating station, of which pick-up or transport rollers 14 are illustrated schematically. In the nickel-plated state, for example, the contact spring mat 12 is given a high-quality finish, for example with gold, in the area of the contact points, with the aid of a schematically illustrated wetting device 15, which can be a titanium electrode with textile covering for wetting the contact points. A mat section of the desired length is separated from the contact spring mat 12 with the aid of a cutting device 16 and is rolled cylindrically in a subsequent processing step. Either the contact element thus formed, as illustrated in FIGS. 2 and 3, takes the form of a spring-loaded plug pin 17 or, as illustrated in FIGS. 4 and 5, the shape of a contact spring bushing 18. In the first case, the cylindrical rolling process takes place in such a way that the radial bulges 19 are directed outwards, whereas in the second case they are directed inwards.

Aus Fig. 6 ist ersichtlich, wie die Kontaktfederdrahtabschnitte 4 stirnseitig jeweils mit einem Begrenzungsband 8 und 9 in Form eines Runddrahtes verbunden sind. Gemäß Fig. 7 können auch profilierte Formdrähte 8ʹ bzw. 9ʹ als Begrenzungsbänder zum Einsatz gelangen. Während das Begrenzungsband 9ʹ rechteckigen Querschnitt besitzt, ist das Begrenzungsband 8ʹ so geformt, daß es mit einer seitlichen Schulter 20 an den Abschnitten 4 seitlich anliegt. Die dadurch erreichte Verbreiterung des Begrenzungsbandes 8ʹ in Verbindung mit der schrägen Außenfläche 21, die mit der Achse der Kontaktfedern 4 einen spitzen Winkel einschließt, stellt sicher, daß bei exzentrischer Annäherung des nicht veranschaulichten Gegenkontaktes für dessen genaue Ausrichtung auf das Kontaktelement gesorgt ist.From Fig. 6 it can be seen how the contact spring wire sections 4 are each connected on the end face with a limiting band 8 and 9 in the form of a round wire. According to FIG. 7, profiled shaped wires 8ʹ or 9ʹ can also be used as boundary bands. While the boundary band 9ʹ has a rectangular cross-section, the boundary band 8ʹ is shaped such that it lies laterally with a side shoulder 20 on the sections 4. The resulting broadening of the boundary band 8 'in conjunction with the inclined outer surface 21, which includes an acute angle with the axis of the contact springs 4, ensures that with eccentric approach of the counter-contact, not shown, for its precise alignment the contact element is taken care of.

In Fig. 8 ist eine abgewandelte Ausführung veranschaulicht, bei der das Begrenzungsband 8 bzw. 9 durch ein im Querschnitt U-förmiges Kupferband gebildet ist, dessen beide Schenkel die Enden der aufeinanderfolgenden Kontaktfedern 4 zwischen sich einschließen. Überdies ist in dieser Fig. 8 die Möglichkeit der Zusammenfassung zweier mattenartiger Kontaktfedereinheiten über ein ihnen gemeinsames mittleres Begrenzungsband 22 unter Bildung einer den Einsatz als Doppelbuchse ermöglichenden Doppeleinheit veranschaulicht.In Fig. 8 a modified embodiment is illustrated, in which the limiting band 8 or 9 is formed by a U-shaped copper strip in cross section, the two legs of which enclose the ends of the successive contact springs 4 between them. Furthermore, this FIG. 8 illustrates the possibility of combining two mat-like contact spring units over a central limiting band 22 common to them, forming a double unit which enables use as a double socket.

Fig. 9 zeigt sehr schematisch die Möglichkeit der Anordnung des in Form eines gefederten Steckerstifts 17 ausgebildeten Kontaktelements auf einem Trägerstift 23. Umgebördelte Ränder 24 bzw. 25 dienen der Lagesicherung des gefederten Steckerstiftes 17.9 very schematically shows the possibility of arranging the contact element in the form of a spring-loaded plug pin 17 on a carrier pin 23. Flanged edges 24 and 25 serve to secure the position of the spring-loaded plug pin 17.

Fig. 10 zeigt die Möglichkeit des Einsatzes des in Form einer Kontaktfederbuchse 18 ausgebildeten Kontaktelements in einer Trägerbuchse 26 und Fig. 11 veranschaulicht die Festlegung von zwei Kontaktfederbuchsen 18 in koaxialer Lage innerhalb einer ihnen gemeinsamen Doppelträgerbuchse 27.10 shows the possibility of using the contact element designed in the form of a contact spring bushing 18 in a carrier bushing 26, and FIG. 11 illustrates the fixing of two contact spring bushings 18 in a coaxial position within a double carrier bushing 27 common to them.

Der Trägerstift 23 und die Trägerbuchsen 26 bzw. 27 sind, wie die Fig. 9 bis 11 zeigen, in herkömmlicher Weise hergestellte Drehteile. Insbesondere bei Kleinstbauweise mit nur ca 0,1 mm starken Kontaktfedern 4 bieten z.B. die Kontaktelemente in Form der Kontaktfederbuchse 18 demgegenüber die vorteilhafte Möglichkeit, in als Ziehteil vorgefertigten Hülsen mit einer Wandstärke von 0,1 mm eingesetzt und durch einfaches Umbördeln der Hülsenränder in ihnen festgelegt zu werden. Dies kann auch in Verbindung mit einem Aufpressen des einen Hülsenrandes auf einen vergleichsweise einfacher ausgebildeten Trägerstift erfolgen.The carrier pin 23 and the carrier bushes 26 and 27 are, as shown in FIGS. 9 to 11, turned parts produced in a conventional manner. Particularly in the case of the smallest construction with only approx. 0.1 mm thick contact springs 4, e.g. the contact elements in the form of the contact spring bushing 18, on the other hand, have the advantageous possibility of being inserted into sleeves prefabricated as a drawn part with a wall thickness of 0.1 mm and being fixed in them by simply flanging the sleeve edges. This can also be done in connection with pressing the one sleeve edge onto a comparatively simpler support pin.

Claims (6)

  1. Method for producing contact elements in the form of contact spring bushes (18) or sprung plug pins (17), having a multiplicity of contact springs (4), which are arranged next to one another, can be fixed at their one end to a carrier part and are cambered for the purpose of making contact with the mating contact, having the following method steps: arranging contact spring wire sections (4) of equal length at a predetermined spacing and in a position aligned parallel to one another, feeding a limiting strip (8) to at least one of the ends of the contact springs (4) and joining the contact springs to the limiting strip during advance of the contact springs transverse to the contact spring axis with the formation of a contact spring mat (12), cambering the contact springs transverse to the plane of the contact spring mat, applying an electroplated coating, severing the limiting strip or strips (8, 9) in order to form contact spring units, and converting the contact spring units into a cylindrically welded shape.
  2. Method according to Claim 1, characterised in that the contact springs (4) are joined to one another by laser welding to form the mat-like contact spring unit (12).
  3. Method according to Claim 1 or 2, characterised by the use of a limiting strip in the form of a profiled section wire (8') whose outer surface (21) encloses an acute angle with the axis of the contact springs (4).
  4. Method according to one of Claims 1 to 3, characterised by the use of a limiting strip (8, 9) in the form of a copper strip which has a U-shaped cross-section and whose two limbs enclose between them the ends of the successive contact springs (4).
  5. Method according to one of the preceding claims, characterised in that two mat-like contact spring units (12) are combined via a limiting strip (22) common to them to form a double unit enabling use as a double bushing.
  6. Method according to one of the preceding claims, characterised in that before the cylindrical welding of the contact spring units exclusively the cambered regions serving for current transfer are electroplated on the outside with a gold coating.
EP87103171A 1986-03-12 1987-03-06 Process for manufacturing contact members Expired - Lifetime EP0236963B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103171T ATE83875T1 (en) 1986-03-12 1987-03-06 PROCESS FOR MANUFACTURING CONTACT ELEMENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3608276 1986-03-12
DE19863608276 DE3608276A1 (en) 1986-03-12 1986-03-12 CONTACT ELEMENT IN THE FORM OF A CONTACT SPRING SOCKET OR A SPRING PLUG AND METHOD FOR THE PRODUCTION THEREOF

Publications (3)

Publication Number Publication Date
EP0236963A2 EP0236963A2 (en) 1987-09-16
EP0236963A3 EP0236963A3 (en) 1989-01-18
EP0236963B1 true EP0236963B1 (en) 1992-12-23

Family

ID=6296191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103171A Expired - Lifetime EP0236963B1 (en) 1986-03-12 1987-03-06 Process for manufacturing contact members

Country Status (7)

Country Link
US (1) US4752253A (en)
EP (1) EP0236963B1 (en)
JP (2) JPS62223994A (en)
AT (1) ATE83875T1 (en)
DE (2) DE3608276A1 (en)
ES (1) ES2000250T3 (en)
GR (1) GR3007150T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023110351A1 (en) 2023-04-24 2024-10-24 Amphenol-Tuchel Electronics Gesellschaft mit beschränkter Haftung knitted pressed socket contact and connector arrangement

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3615915A1 (en) * 1986-05-12 1987-11-19 Dunkel Otto Gmbh CONTACT ELEMENT FOR ELECTRICAL CONNECTORS
DE3800043A1 (en) * 1988-01-04 1989-07-20 Dunkel Otto Gmbh Wire spring or leaf spring contact socket
DE4015230A1 (en) * 1989-05-17 1990-11-22 Amp Inc Electrical cable connection bush - is produced as pressing with spring insert ring for contact with plug
US5055055A (en) * 1990-10-12 1991-10-08 Elcon Products International Company Circuit board connector system
US5358432A (en) * 1991-04-03 1994-10-25 General Electric Company Resilient connectors for a generator/motor rotor
JPH0711743U (en) * 1993-07-29 1995-02-21 株式会社ソルトン Breaker wire connection terminal
JP2658817B2 (en) * 1993-09-02 1997-09-30 日本電気株式会社 Electronic component leads
US5562490A (en) * 1993-12-27 1996-10-08 General Motors Corporation High ampacity electrical quick disconnect
US5449304A (en) * 1994-05-19 1995-09-12 The Whitaker Corporation Electrical connector having improved contacts
DE19703984A1 (en) * 1997-02-03 1998-08-06 Grote & Hartmann High current contact element
JPH10255888A (en) * 1997-03-05 1998-09-25 Hioki Ee Corp Lead connection structure onto connection terminal part of electric apparatus
US5951337A (en) * 1997-06-02 1999-09-14 Desco Industries, Inc. Damage-resistant electrical connector plug and combination
GB2336479B (en) * 1998-04-16 2002-04-17 Lantek Electronics Inc Coaxial cable connector
DE19941515A1 (en) * 1999-08-31 2001-03-01 Interconnectron Gmbh High current contact
DE10124532A1 (en) * 2001-03-22 2002-10-02 Eckhart Alfred Linneweh Electrical plug connector has sleeve-shaped contact element as second contact pin identical to first contact pin onto which dual connection sleeve is fitted and into which first pin is inserted
US6767260B2 (en) * 2002-02-28 2004-07-27 Qa Technology Company, Inc. Hyperboloid electrical contact
DE10235053A1 (en) * 2002-07-31 2004-02-12 Siemens Ag Manufacture of an electrical contact in which there is a sleeve element that is fitted onto the end of a contact bush and is laser welded
DE102004002405B3 (en) * 2004-01-16 2005-07-14 Tyco Electronics Amp Gmbh Contact socket with contact spring, especially for high current applications, has contact spring for bridging electrical contact between socket and contact pin; contact spring is essentially annular with interconnected curved sub-sections
JP4634238B2 (en) * 2005-06-29 2011-02-16 株式会社オートネットワーク技術研究所 Female terminal bracket
JP4508009B2 (en) * 2005-06-29 2010-07-21 株式会社オートネットワーク技術研究所 Female terminal bracket
FR2889625B1 (en) 2005-08-04 2014-01-24 Souriau FEMALE CONTACT ELEMENT AND METHOD FOR MAKING A FEMALE CONTACT ELEMENT
JP2007122929A (en) * 2005-10-25 2007-05-17 Maspro Denkoh Corp F-type connector for coaxial cable, television connection cable, and electronic equipment box
JP5185022B2 (en) * 2008-08-27 2013-04-17 イリソ電子工業株式会社 Electrical contact and connector using the same
US7658657B1 (en) * 2009-02-26 2010-02-09 Hubbell Incorporated Single-pole electrical connector having a steel retaining spring
JP5083847B1 (en) * 2011-06-07 2012-11-28 日本航空電子工業株式会社 Contact elements and connectors
JP5717292B2 (en) * 2011-08-30 2015-05-13 西日本電線株式会社 Conductor connector
CN102723656B (en) * 2012-06-21 2014-03-12 南车成都机车车辆有限公司 Joint forming device and method for flat copper conductor
US9106035B2 (en) 2012-06-25 2015-08-11 Dish Network L.L.C. RF connector with push-on connection
US9362645B2 (en) * 2013-12-05 2016-06-07 Hypertronics Corporation One piece socket contact
DE102015122303B3 (en) * 2015-12-15 2017-04-20 Amphenol-Tuchel Electronics Gmbh connector socket
US9762007B2 (en) 2016-02-10 2017-09-12 Dish Network L.L.C. Push on connector
CN106505348B (en) * 2016-11-16 2018-06-29 李慧敏 A kind of cage hyperbola spring structure and socket
DE102019109393B4 (en) * 2019-04-10 2023-02-02 Lisa Dräxlmaier GmbH PCB FEEDTHROUGH AND ELECTRICALLY CONDUCTIVE PIN FOR PASSING IN A PCB FEEDTHROUGH
DK3761455T3 (en) * 2019-07-01 2022-08-29 Odu Gmbh & Co Kg Connection plug with a center pin and lamella sleeve and connection socket with lamella sleeve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103426B (en) * 1958-06-28 1961-03-30 Rudolf Neidecker Plug device with resilient contact elements
DE1103023B (en) 1959-01-19 1961-03-23 Shell Int Research Process for curing epoxy resins
ES261126A1 (en) * 1959-09-22 1961-12-16 Bonhomme Franaois Robert Machines for manufacturing sockets for use in cooperation with plug-in members
US3319217A (en) * 1966-02-25 1967-05-09 New Twist Connector Corp Spirally wound pin connector
GB1288757A (en) * 1968-09-24 1972-09-13
DE2528003A1 (en) 1975-06-24 1977-01-20 Krupp Gmbh ROCK DRILLS
DE2558003C3 (en) * 1975-12-22 1980-06-12 Georg 8260 Muehldorf Kolm Electrical connector
FR2415889A1 (en) * 1978-01-25 1979-08-24 Bonhomme F R IMPROVEMENTS MADE TO SOCKETS, FOR ELECTRICAL CONTACT DEVICES WITH PLUG AND SOCKET, AND TO THEIR MANUFACTURING PROCESSES
DE3342742C2 (en) * 1983-11-25 1985-10-24 Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf Process for the manufacture of contact spring bushings
DE3412877A1 (en) * 1984-04-05 1985-10-17 Otto Dunkel GmbH Fabrik für elektrotechnische Geräte, 8260 Mühldorf METHOD FOR PRODUCING CONTACT SPRING SOCKETS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023110351A1 (en) 2023-04-24 2024-10-24 Amphenol-Tuchel Electronics Gesellschaft mit beschränkter Haftung knitted pressed socket contact and connector arrangement

Also Published As

Publication number Publication date
ES2000250T3 (en) 1993-06-01
JPS62223994A (en) 1987-10-01
EP0236963A2 (en) 1987-09-16
JPH06101361B2 (en) 1994-12-12
GR3007150T3 (en) 1993-07-30
US4752253A (en) 1988-06-21
JPH05198345A (en) 1993-08-06
DE3608276A1 (en) 1987-09-17
DE3783148D1 (en) 1993-02-04
ATE83875T1 (en) 1993-01-15
EP0236963A3 (en) 1989-01-18
ES2000250A4 (en) 1988-02-01

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