EP3255735B1 - Spring loaded contact pin - Google Patents

Spring loaded contact pin Download PDF

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Publication number
EP3255735B1
EP3255735B1 EP17181924.6A EP17181924A EP3255735B1 EP 3255735 B1 EP3255735 B1 EP 3255735B1 EP 17181924 A EP17181924 A EP 17181924A EP 3255735 B1 EP3255735 B1 EP 3255735B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
contact
spring
piston
contact pin
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.)
Active
Application number
EP17181924.6A
Other languages
German (de)
French (fr)
Other versions
EP3255735A1 (en
Inventor
Andreas Gruber
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.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik 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.)
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Publication date
Application filed by Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Priority to EP17181924.6A priority Critical patent/EP3255735B1/en
Publication of EP3255735A1 publication Critical patent/EP3255735A1/en
Application granted granted Critical
Publication of EP3255735B1 publication Critical patent/EP3255735B1/en
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/245—Contacts for co-operating by abutting resilient; resiliently-mounted by stamped-out resilient contact arm
    • 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
    • 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
    • H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point
    • H01R13/2478—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point spherical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes

Definitions

  • the present invention relates to a spring contact pin and a method of manufacturing a spring contact pin.
  • Spring contact pins, spring contacts or spring pins are contacting elements used for testing electronic components. Spring contact pins are also used in detachable electrical connectors.
  • the contact is generated by probing by means of a spring-assisted pin.
  • Other designations in the jargon include test pin, probe, spring-loaded contact, test pin or Pogo® pin.
  • the US 2013/0330983 A1 shows a spring contact pin with a sleeve, a spring, an insulating ball and a piston.
  • the EP 2 180 326 A1 shows a spring contact pin with a sleeve with a spring arranged in the sleeve; with a piston which is at least partially disposed in the sleeve; and with a contact element, which is at least partially disposed in the sleeve and which is adapted to contact the sleeve and / or the piston.
  • the US 7008270 B1 shows a spring contact pin.
  • the JP 2004129658 A shows a spring contact pin.
  • the EP 1 251 374 A2 shows a receptacle for a spring contact pin.
  • the JP 2000208344 A shows a spring contact pin.
  • the JP 2004252477 A shows a spring contact pin.
  • the US 2006/0051997 A1 shows a spring contact pin.
  • the US 5,151,040 shows a spring contact pin.
  • the JP 2008149624 shows a spring contact pin.
  • the WO 2006/025510 A1 shows a spring contact pin.
  • the WO 2013/055630 A1 shows a spring contact pin.
  • the present invention seeks to provide a spring contact pin with reduced passive intermodulation.
  • this object is achieved by a spring contact pin having the features of patent claim 1 and / or by a manufacturing method having the features of patent claim 6.
  • the contact element is designed as a circular ring with a bore and with angled contact tongues.
  • the spring and the piston are arranged within the annulus or the angled contact tongues.
  • the contact tongues are at least partially encased by the sleeve.
  • the piston has a step which is arranged to cooperate with a corresponding inner stop element of the sleeve in order to hold the piston in the sleeve. More preferably, the sleeve on an inner surface to the piston corresponding guide surfaces.
  • the contact element on latching elements which are adapted to lock with the sleeve.
  • the locking elements may be formed as claws.
  • the sleeve is made of plastic.
  • the spring contact pin 300 has a plastic sleeve 301, a fastening element 303, which is designed as a mandrel, a spring 305, a piston 307 and a contact element 311.
  • the plastic sleeve 301 has a stop element 319.
  • the stopper member 319 cooperates with a step 317 of the piston 307.
  • the stop member 319 prevents the piston 307 is pushed too far up by the spring 305.
  • the plastic sleeve 301 has three guide surfaces 321 for guiding the piston 307.
  • the guide surfaces 321 serve to guide the piston 307 during an axial movement.
  • the piston 307 is pressed in a hidden state by the spring 305 against the stop element 319 of the plastic sleeve.
  • the properties of the spring 305 in particular spring travel and spring hardness, are decisive for the insertion force of the spring contact 300 to be applied.
  • the spring travel of the spring contact pin 300 is approximately 1 mm.
  • the spring 305 is formed as a spiral spring, which is wound around the mandrel.
  • the piston 307 has a recess 328 corresponding to the spring 305. The piston 307 is placed on the recess 328 on the spring 305.
  • the fastening element 303 or the mandrel is guided through a recess 325 of the contact element 311.
  • the fastening element 303 forms a stop for the contact element 311.
  • the contact element 311 comprises a bottom region, which is designed as a circular ring, and contact tongues 313 integrally formed on the circular ring 315.
  • the circular ring 315 comprises the bore 325, which is dimensioned correspondingly to the mandrel.
  • the diameter of the circular ring is dimensioned such that the piston 307, the mandrel and the spring 305 are arranged radially inside the contact element 311.
  • the contact tongues 313 are bent radially inwardly at an upper portion to contact the piston 307. In this way, at the same time a tolerance compensation is provided by the contact tongues 313 will adapt to the contours of the piston 307 and to the inner contours of the sleeve 301.

Description

GEBIET DER ERFINDUNGFIELD OF THE INVENTION

Die vorliegende Erfindung betrifft einen Federkontaktstift sowie ein Herstellungsverfahren für einen Federkontaktstift.The present invention relates to a spring contact pin and a method of manufacturing a spring contact pin.

TECHNISCHER HINTERGRUNDTECHNICAL BACKGROUND

Federkontaktstifte, Federkontakte oder Federstifte sind Kontaktierungselemente, die für die Prüfung von elektronischen Komponenten verwendet werden. Federkontaktstifte werden zudem in lösbaren elektrischen Steckverbindungen eingesetzt.Spring contact pins, spring contacts or spring pins are contacting elements used for testing electronic components. Spring contact pins are also used in detachable electrical connectors.

Dabei wird die Kontaktierung durch Antastung mittels eines federunterstützten Stiftes erzeugt. Andere Bezeichnungen aus dem Fachjargon sind Testpin, Prüfspitze, gefederter Kontakt, Prüfpin oder auch Pogo®-Pin.The contact is generated by probing by means of a spring-assisted pin. Other designations in the jargon include test pin, probe, spring-loaded contact, test pin or Pogo® pin.

Die US 2013/0330983 A1 zeigt einen Federkontaktstift mit einer Hülse, einer Feder, einer Isolierkugel und einem Kolben.The US 2013/0330983 A1 shows a spring contact pin with a sleeve, a spring, an insulating ball and a piston.

Die EP 2 180 326 A1 zeigt einen Federkontaktstift mit einer Hülse mit einer in der Hülse angeordneten Feder; mit einem Kolben, welcher zumindest teilweise in der Hülse angeordnet ist; und mit einem Kontaktelement, welches zumindest teilweise in der Hülse angeordnet ist und welches eingerichtet ist, die Hülse und/oder den Kolben zu kontaktieren.The EP 2 180 326 A1 shows a spring contact pin with a sleeve with a spring arranged in the sleeve; with a piston which is at least partially disposed in the sleeve; and with a contact element, which is at least partially disposed in the sleeve and which is adapted to contact the sleeve and / or the piston.

Die US 7008270 B1 zeigt einen Federkontaktstift.
Die JP 2004129658 A zeigt einen Federkontaktstift.The US 7008270 B1 shows a spring contact pin.
The JP 2004129658 A shows a spring contact pin.

Die EP 1 251 374 A2 zeigt eine Aufnahme für einen Federkontaktstift.
Die JP 2000208344 A zeigt einen Federkontaktstift.
Die JP 2004252477 A zeigt einen Federkontaktstift.
Die US 2006/0051997 A1 zeigt einen Federkontaktstift.
Die US 5,151,040 zeigt einen Federkontaktstift.
Die JP 2008149624 zeigt einen Federkontaktstift.
Die WO 2006/025510 A1 zeigt einen Federkontaktstift.
Die WO 2013/055630 A1 zeigt einen Federkontaktstift.The EP 1 251 374 A2 shows a receptacle for a spring contact pin.
The JP 2000208344 A shows a spring contact pin.
The JP 2004252477 A shows a spring contact pin.
The US 2006/0051997 A1 shows a spring contact pin.
The US 5,151,040 shows a spring contact pin.
The JP 2008149624 shows a spring contact pin.
The WO 2006/025510 A1 shows a spring contact pin.
The WO 2013/055630 A1 shows a spring contact pin.

Bei bekannten Federkontaktstiften kommt es gelegentlich zu einer Verkantung des Kolbens in der Hülse. Dies ist eine Ursache für passive Intermodulation.In known spring contact pins, there is occasionally a tilting of the piston in the sleeve. This is a cause of passive intermodulation.

ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY OF THE INVENTION

Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Federkontaktstift mit reduzierter passiver Intermodulation anzugeben.Against this background, the present invention seeks to provide a spring contact pin with reduced passive intermodulation.

Erfindungsgemäß wird diese Aufgabe durch einen Federkontaktstift mit den Merkmalen des Patentanspruchs 1 und/oder durch ein Herstellungsverfahren mit den Merkmalen des Patentanspruches 6 gelöst.According to the invention, this object is achieved by a spring contact pin having the features of patent claim 1 and / or by a manufacturing method having the features of patent claim 6.

Demgemäß ist vorgesehen:

  • ein Federkontaktstift mit einer Hülse; mit einer in der Hülse angeordneten Feder; mit einem Kolben, welcher zumindest teilweise in der Hülse angeordnet ist; und mit einem Kontaktelement, welches zumindest teilweise in der Hülse angeordnet ist und welches eingerichtet ist, die Hülse und den Kolben zu kontaktieren, wobei das Kontaktelement als Kreisring mit einer Bohrung und mit abgewinkelten Kontaktzungen ausgebildet ist, wobei das Kontaktelement den Kolben kontaktiert, wobei der Kolben eine Stufe aufweist, welche eingerichtet ist, mit einem korrespondierenden inneren Anschlagelement der Hülse zusammenzuwirken, um den Kolben in der Hülse zu halten, wobei die Hülse insbesondere an einer inneren Oberfläche zu dem Kolben korrespondierende Führungsflächen aufweist;
  • ein Herstellungsverfahren für einen Federkontaktstift mit einer Länge von 8 mm bis 15 mm und/oder mit einem Durchmesser zwischen 0,5 mm und 3 mm mit den Schritten: Bereitstellen einer Hülse; Einsetzen einer Feder in die Hülse; Montieren eines Kontaktelements, insbesondere eines Kontaktringes mit Kontaktzungen in der Hülse; und Einsetzen eines Kolbens in die Hülse.
Die der vorliegenden Erfindung zugrunde liegende Idee besteht darin, in einem Federkontaktstift einen homogenen Kontakt zwischen dem Kolben und der Hülse sicherzustellen.
Erfindungsgemäß wird der homogene Kontakt von dem Kolben auf die Hülse durch das Kontaktelement sichergestellt, indem das Kontaktelement den Kolben sowie die Hülse umfänglich kontaktiert.
Vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus den weiteren Unteransprüchen sowie aus der Beschreibung unter Bezugnahme auf die Figuren der Zeichnung.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist das Kontaktelement als Kontaktring mit federnden Kontaktelementen, ausgebildet. Somit ist ein umfänglicher, homogener Kontakt zwischen der Hülse und dem Kolben auch bei seitlichen Krafteinwirkungen sichergestellt. Hierdurch wird der homogene Kontakt weiter verbessert. Zudem schaffen die federnden Kontaktzungen einen gewissen Toleranzausgleich, indem die Kontaktzungen den Kolben mittig in dem Kontaktring halten.Accordingly, it is provided:
  • a spring contact pin with a sleeve; with a spring disposed in the sleeve; with a piston which is at least partially disposed in the sleeve; and a contact element, which is at least partially disposed in the sleeve and which is adapted to contact the sleeve and the piston, wherein the Contact element is formed as a circular ring with a bore and with angled contact tongues, wherein the contact element contacts the piston, wherein the piston has a step which is adapted to cooperate with a corresponding inner stop member of the sleeve to hold the piston in the sleeve the sleeve has, in particular on an inner surface to the piston corresponding guide surfaces;
  • a method of manufacturing a spring contact pin having a length of 8 mm to 15 mm and / or a diameter of between 0.5 mm and 3 mm, comprising the steps of: providing a sleeve; Inserting a spring into the sleeve; Mounting a contact element, in particular a contact ring with contact tongues in the sleeve; and inserting a piston into the sleeve.
The idea underlying the present invention is to ensure a homogeneous contact between the piston and the sleeve in a spring contact pin.
According to the invention, the homogeneous contact is ensured by the piston on the sleeve by the contact element by the contact element contacted the piston and the sleeve circumferentially.
Advantageous embodiments and further developments will become apparent from the other dependent claims and from the description with reference to the figures of the drawing.
According to a preferred embodiment of the invention, the contact element is designed as a contact ring with resilient contact elements. Thus, a circumferential, homogeneous contact between the sleeve and the piston is also lateral Force effects ensured. As a result, the homogeneous contact is further improved. In addition, the resilient contact tongues create a certain tolerance compensation by the contact tongues hold the piston centered in the contact ring.

Erfindungsgemäß ist das Kontaktelement als Kreisring mit einer Bohrung und mit abgewinkelten Kontaktzungen ausgebildet. Innerhalb des Kreisringes bzw. der abgewinkelten Kontaktzungen sind die Feder sowie der Kolben angeordnet. Die Kontaktzungen sind wenigstens teilweise von der Hülse ummantelt. Auf diese Weise verläuft ein Signal bzw. Strom im Wesentlichen über das Kontaktelement. Dementsprechend ist der Bereich innerhalb der Kontaktzungen im Wesentlichen feldfrei. Folglich ist ein Isolierteil zur Ausführung der Erfindung nicht zwingend erforderlich.
Erfindungsgemäß weist der Kolben eine Stufe auf, welche eingerichtet ist, mit einem korrespondierenden inneren Anschlagelement der Hülse zusammenzuwirken, um den Kolben in der Hülse zu halten. Weiter bevorzugt weist die Hülse an einer inneren Oberfläche zu dem Kolben korrespondierende Führungsflächen auf. Auf diese Weise wird eine Führung für den Kolben bereitgestellt, die ein Verkanten des Kolbens in dem Federkontaktstift verhindert.
Gemäß einer bevorzugten Ausführungsform der Erfindung weist das Kontaktelement Rastelemente auf, welche eingerichtet sind, mit der Hülse zu verrasten. Beispielsweise können die Rastelemente als Krallen ausgebildet sein.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist die Hülse aus Kunststoff gefertigt.According to the invention, the contact element is designed as a circular ring with a bore and with angled contact tongues. Within the annulus or the angled contact tongues, the spring and the piston are arranged. The contact tongues are at least partially encased by the sleeve. In this way, a signal or current substantially passes over the contact element. Accordingly, the area within the contact tongues is substantially field-free. Consequently, an insulating member for carrying out the invention is not mandatory.
According to the invention, the piston has a step which is arranged to cooperate with a corresponding inner stop element of the sleeve in order to hold the piston in the sleeve. More preferably, the sleeve on an inner surface to the piston corresponding guide surfaces. In this way, a guide for the piston is provided which prevents tilting of the piston in the spring contact pin.
According to a preferred embodiment of the invention, the contact element on latching elements which are adapted to lock with the sleeve. For example, the locking elements may be formed as claws.
According to a preferred embodiment of the invention, the sleeve is made of plastic.

Die obigen Ausgestaltungen und Weiterbildungen lassen sich, sofern sinnvoll, beliebig miteinander kombinieren. Weitere mögliche Ausgestaltungen, Weiterbildungen und Implementierungen der Erfindung umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezüglich der Ausführungsbeispiele beschriebenen Merkmale der Erfindung. Insbesondere wird dabei der Fachmann auch Einzelaspekte als Verbesserungen oder Ergänzungen zu der jeweiligen Grundform der vorliegenden Erfindung hinzufügen.The above embodiments and developments can, if appropriate, combine with each other as desired. Further possible refinements, developments and implementations of the invention also include combinations, not explicitly mentioned, of features of the invention described above or below with regard to the exemplary embodiments. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.

INHALTSANGABE DER ZEICHNUNGCONTENT OF THE DRAWING

Die vorliegende Erfindung wird nachfolgend anhand der in den schematischen Figuren der Zeichnung angegebenen Ausführungsbeispiele näher erläutert. Es zeigen dabei:

Fig. 1
zeigt eine weitere Ausführungsform eines erfindungsgemäßen Federkontaktstiftes;
Fig. 2
zeigt ein Kontaktelement eines erfindungsgemäßen Federkontaktstiftes gemäß Fig. 1;
Fig. 3
zeigt eine Hülse eines erfindungsgemäßen Federkontaktstiftes gemäß Fig. 1;
The present invention will be explained in more detail with reference to the exemplary embodiments indicated in the schematic figures of the drawing. It shows:
Fig. 1
shows a further embodiment of a spring contact pin according to the invention;
Fig. 2
shows a contact element of a spring contact pin according to the invention Fig. 1 ;
Fig. 3
shows a sleeve of a spring contact pin according to the invention Fig. 1 ;

Die beiliegenden Figuren der Zeichnung sollen ein weiteres Verständnis der Ausführungsformen der Erfindung vermitteln. Sie veranschaulichen Ausführungsformen und dienen im Zusammenhang mit der Beschreibung der Erklärung von Prinzipien und Konzepten der Erfindung. Andere Ausführungsformen und viele der genannten Vorteile ergeben sich im Hinblick auf die Zeichnungen. Die Elemente der Zeichnungen sind nicht notwendigerweise maßstabsgetreu zueinander gezeigt.The accompanying figures of the drawing are intended to convey a further understanding of the embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The elements of the drawings are not necessarily shown to scale to each other.

In den Figuren der Zeichnung sind gleiche, funktionsgleiche und gleich wirkende Elemente, Merkmale und Komponenten - sofern nichts anderes ausgeführt ist - jeweils mit denselben Bezugszeichen versehen.In the figures of the drawing are the same, functionally identical and same-acting elements, features and components - unless otherwise stated - each provided with the same reference numerals.

BESCHREIBUNG VON AUSFÜHRUNGSBEISPIELENDESCRIPTION OF EMBODIMENTS

Obwohl die vorliegende Erfindung anhand bevorzugter Ausführungsbeispiele vorstehend vollständig beschrieben wurde, ist sie darauf nicht beschränkt, sondern auf vielfältige Art und Weise modifizierbar.Although the present invention has been fully described above with reference to preferred embodiments, it is not limited thereto but is modifiable in a variety of ways.

Im Folgenden werden die Figuren 1, 2 und 3 übergreifend beschrieben.

  • Figur 1 zeigt eine schematische Schnittsicht eines erfindungsgemäßen Federkontaktstiftes 300 gemäß einer weiteren, alternativen Ausführungsform.
  • Figur 2 zeigt eine schematische Perspektivansicht eines erfindungsgemäßen Kontaktelements 311 gemäß Figur 1.
  • Figur 3 zeigt eine schematische Schnittsicht einer erfindungsgemäßen Kunststoffhülse 301 gemäß Figur 1.
The following are the FIGS. 1, 2 and 3 described comprehensively.
  • FIG. 1 shows a schematic sectional view of a spring contact pin 300 according to the invention according to a further alternative embodiment.
  • FIG. 2 shows a schematic perspective view of a contact element 311 according to the invention according to FIG. 1 ,
  • FIG. 3 shows a schematic sectional view of a plastic sleeve 301 according to the invention FIG. 1 ,

Der Federkontaktstift 300 weist eine Kunststoffhülse 301, ein Befestigungselement 303, welches als Dorn ausgebildet ist, eine Feder 305, einen Kolben 307 und ein Kontaktelement 311 auf.The spring contact pin 300 has a plastic sleeve 301, a fastening element 303, which is designed as a mandrel, a spring 305, a piston 307 and a contact element 311.

Die Kunststoffhülse 301 weist ein Anschlagelement 319 auf. Das Anschlagelement 319 wirkt mit einer Stufe 317 des Kolbens 307 zusammen. Das Anschlagelement 319 verhindert, dass der Kolben 307 von der Feder 305 zu weit nach oben gedrückt wird. Die Kunststoffhülse 301 weist zur Führung des Kolbens 307 drei Führungsflächen 321 auf. Die Führungsflächen 321 dienen der Führung des Kolbens 307 bei einer axialen Bewegung.The plastic sleeve 301 has a stop element 319. The stopper member 319 cooperates with a step 317 of the piston 307. The stop member 319 prevents the piston 307 is pushed too far up by the spring 305. The plastic sleeve 301 has three guide surfaces 321 for guiding the piston 307. The guide surfaces 321 serve to guide the piston 307 during an axial movement.

Typischerweise wird der Kolben 307 in verstecktem Zustand von der Feder 305 gegen das Anschlagelement 319 der Kunststoffhülse gedrückt. Die Eigenschaften der Feder 305, insbesondere Federweg und Federhärte, sind maßgeblich für die aufzubringende Steckkraft des Federkontaktes 300. Der Federweg des Federkontaktstiftes 300 beträgt in etwa 1 mm. Die Feder 305 ist als Spiralfeder, welche um den Dorn gewickelt ist, ausgebildet. Der Kolben 307 weist eine zu der Feder 305 korrespondierende Vertiefung 328 auf. Der Kolben 307 ist an der Vertiefung 328 auf die Feder 305 aufgesetzt.Typically, the piston 307 is pressed in a hidden state by the spring 305 against the stop element 319 of the plastic sleeve. The properties of the spring 305, in particular spring travel and spring hardness, are decisive for the insertion force of the spring contact 300 to be applied. The spring travel of the spring contact pin 300 is approximately 1 mm. The spring 305 is formed as a spiral spring, which is wound around the mandrel. The piston 307 has a recess 328 corresponding to the spring 305. The piston 307 is placed on the recess 328 on the spring 305.

Das Befestigungselement 303 bzw. der Dorn ist durch eine Ausnehmung 325 des Kontaktelements 311 hindurchgeführt. Dabei bildet das Befestigungselement 303 einen Anschlag für das Kontaktelement 311.The fastening element 303 or the mandrel is guided through a recess 325 of the contact element 311. In this case, the fastening element 303 forms a stop for the contact element 311.

Das Kontaktelement 311 umfasst einen Bodenbereich, welcher als Kreisring ausgebildet ist, und an den Kreisring 315 angeformte Kontaktzungen 313. Der Kreisring 315 umfasst die Bohrung 325, welche zudem Dorn korrespondierend dimensioniert ist. Der Durchmesser des Kreisringes ist derart dimensioniert, dass der Kolben 307, der Dorn und die Feder 305 radial innerhalb des Kontaktelements 311 angeordnet sind. Die Kontaktzungen 313 sind in einem oberen Bereich radial nach innen gebogen, um den Kolben 307 zu kontaktieren. Auf diese Weise wird zugleich ein Toleranzausgleich bereitgestellt, indem sich die Kontaktzungen 313 an die Konturen des Kolbens 307 bzw. an die inneren Konturen der Hülse 301 anpassen werden.The contact element 311 comprises a bottom region, which is designed as a circular ring, and contact tongues 313 integrally formed on the circular ring 315. The circular ring 315 comprises the bore 325, which is dimensioned correspondingly to the mandrel. The diameter of the circular ring is dimensioned such that the piston 307, the mandrel and the spring 305 are arranged radially inside the contact element 311. The contact tongues 313 are bent radially inwardly at an upper portion to contact the piston 307. In this way, at the same time a tolerance compensation is provided by the contact tongues 313 will adapt to the contours of the piston 307 and to the inner contours of the sleeve 301.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

300300
FederkontaktstiftSpring contact pin
301301
Hülseshell
303303
Befestigungselementfastener
305305
Federfeather
307307
Kolbenpiston
311311
Kontaktelementcontact element
313313
Kontaktzungencontact tongues
315315
Kreisringannulus
317317
Stufestep
319319
Anschlagattack
321321
Führungsflächenguide surfaces
323323
Rastelementlocking element
325325
Bohrungdrilling
328328
Vertiefungdeepening

Claims (6)

  1. A spring-loaded contact pin (300) for electronic components having a sleeve (301);
    having a spring (305) arranged in the sleeve (301);
    having a piston (307), which is arranged at least partially in the sleeve (301); and having a contact element (311), which is arranged at least partially in the sleeve (301) and which is set up to contact the sleeve (301) and/or the piston (307),
    wherein the contact element (311) comprises angled contact tongues (313), wherein the contact element contacts the piston (307), wherein the piston has a step (317), which is set up to interact with a corresponding inner stop element (319) of the sleeve, in order to hold the piston in the sleeve,
    characterized in that
    the contact element (311) is designed as an annular ring (315) with a borehole (325).
  2. A spring-loaded contact pin according to Claim 1 wherein the sleeve has guide surfaces (321) corresponding to the piston on an inner surface.
  3. A spring-loaded contact pin According to Claim 1 wherein the contact element (311) is designed as a contact ring (315), which has resilient contact tongues (313).
  4. A spring-loaded contact pin according to any one of the preceding claims, wherein the contact element has latching elements (323), which are set up to latch with the sleeve.
  5. A spring-loaded contact pin according to any one of the preceding claims, wherein the sleeve is made from plastic and/or wherein the diameter of the sleeve is 2 mm - 5 mm, in particular 3 mm - 4 mm and/or wherein the contact force of the spring-loaded contact pin is at least 0.3 N, in particular, at least 0.5 N.
  6. A production method for a spring-loaded contact pin according to any one of the preceding claims and with a length of 8 mm to 15 mm and/or with a diameter between 0.5 mm and 3 mm, such a method comprising the following steps:
    - Provision of a sleeve (301);
    - insertion of a spring (305) into the sleeve (301);
    - mounting of a contact element (311), which is designed as a contact ring (315) with contact tongues (313), in the sleeve (301);
    - insertion of a piston (307) into the sleeve (301).
EP17181924.6A 2016-03-08 2016-03-08 Spring loaded contact pin Active EP3255735B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17181924.6A EP3255735B1 (en) 2016-03-08 2016-03-08 Spring loaded contact pin

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16708674.3A EP3235063B1 (en) 2016-03-08 2016-03-08 Pogo pin
EP17181924.6A EP3255735B1 (en) 2016-03-08 2016-03-08 Spring loaded contact pin
PCT/EP2016/054932 WO2017152959A1 (en) 2016-03-08 2016-03-08 Pogo pin

Related Parent Applications (2)

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EP16708674.3A Division-Into EP3235063B1 (en) 2016-03-08 2016-03-08 Pogo pin
EP16708674.3A Division EP3235063B1 (en) 2016-03-08 2016-03-08 Pogo pin

Publications (2)

Publication Number Publication Date
EP3255735A1 EP3255735A1 (en) 2017-12-13
EP3255735B1 true EP3255735B1 (en) 2018-09-26

Family

ID=55486681

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Application Number Title Priority Date Filing Date
EP17181924.6A Active EP3255735B1 (en) 2016-03-08 2016-03-08 Spring loaded contact pin
EP16708674.3A Active EP3235063B1 (en) 2016-03-08 2016-03-08 Pogo pin

Family Applications After (1)

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EP16708674.3A Active EP3235063B1 (en) 2016-03-08 2016-03-08 Pogo pin

Country Status (5)

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US (1) US10404000B2 (en)
EP (2) EP3255735B1 (en)
CN (2) CN110957593B (en)
TW (1) TW201737563A (en)
WO (1) WO2017152959A1 (en)

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Also Published As

Publication number Publication date
CN109121444A (en) 2019-01-01
EP3235063A1 (en) 2017-10-25
TW201737563A (en) 2017-10-16
CN110957593B (en) 2022-06-28
CN109121444B (en) 2020-03-17
CN110957593A (en) 2020-04-03
EP3235063B1 (en) 2018-03-07
EP3255735A1 (en) 2017-12-13
WO2017152959A1 (en) 2017-09-14
US10404000B2 (en) 2019-09-03
US20180323529A1 (en) 2018-11-08

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