DE2852886A1 - Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head - Google Patents

Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head

Info

Publication number
DE2852886A1
DE2852886A1 DE19782852886 DE2852886A DE2852886A1 DE 2852886 A1 DE2852886 A1 DE 2852886A1 DE 19782852886 DE19782852886 DE 19782852886 DE 2852886 A DE2852886 A DE 2852886A DE 2852886 A1 DE2852886 A1 DE 2852886A1
Authority
DE
Germany
Prior art keywords
contact
contact head
module according
head
circuit boards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19782852886
Other languages
German (de)
Other versions
DE2852886C2 (en
Inventor
Gustav Dipl Phys Dr Krueger
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.)
Feinmetall GmbH
Original Assignee
Feinmetall GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Feinmetall GmbH filed Critical Feinmetall GmbH
Priority to DE19782852886 priority Critical patent/DE2852886A1/en
Publication of DE2852886A1 publication Critical patent/DE2852886A1/en
Application granted granted Critical
Publication of DE2852886C2 publication Critical patent/DE2852886C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
    • G01R1/06716—Elastic
    • G01R1/06722—Spring-loaded
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
    • G01R1/06733—Geometry aspects
    • G01R1/06738—Geometry aspects related to tip portion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/18—End pieces terminating in a probe

Abstract

Testing of circuit boards exhibiting offsets is made possible with a probing contact-piece comprising a cylindrical tube with end flange and with a necked recess at opposite end. The latter retains a conecting pin with a groove for the necking of the tube while the other extremity of the tube guides the probe pin. The probe pin is biased outwardly by a spring, and its stroke is limited by the end flange of the housing tube. The guided part of the probe pin acts as a piston with its thinner rod carrying the contact head of larger diameter and ending as a truncated cone with outer serrations and a central recess. This ensures a good contact with the checked circuit at all angles of approach while the serration results in a reliable bite.

Description

Kontaktblustein Contact bloom

Aktenzeichen: P ! Die Erfindung betrifft einen Kontaktbaustein einer im Oberbegriff des Anspruches 1 bezeichneten Bauart.Case number: P! The invention relates to a contact module a type designated in the preamble of claim 1.

Solche Kontaktbausteine werden bisher hauptsächlich zur Prüfung ebener elektrischer Leiterplatten verwendet, wobei die aus der Hülse vorstehende kegelige Spitze des Kontaktkolbens durch senkrechtes Andrücken einen in der Regel ausreichend guten Kontakt zu der Leiterplatte vermittelt. Nun kommen aber in zunehmendem Maße gebogene oder räumlich gewölbte Leiterplatten zur Anwendung, die ebenfalls vor dem Einbau auf ihre Funktionsfähigkeit überprüft werden müssen. Da hierbei die Kontaktkolben schräg zu der Leiterplattenfläche stehen, werden die Kontaktkolben beim Andrücken seitlich weggeschoben mit dem Ergebnis, daß die Führung des Kontaktkolbens vorzeitig verschleißt und die Kontaktierung beeinträchtigt ist.So far, such contact modules have mainly been leveled for testing electrical circuit boards are used, the conical protruding from the sleeve Tip of the contact piston by pressing it vertically is usually sufficient conveyed good contact with the circuit board. But now come more and more curved or spatially curved circuit boards for use, which are also in front of the Installation must be checked for functionality. Since this is the contact piston are inclined to the PCB surface, the contact pistons are when pressed pushed away to the side with the result that the guidance of the contact piston prematurely wears out and the contact is impaired.

Die Aufgabe der Erfindung besteht also darin, durch eine diesem Verwendungszweck angepaßte besondere Gestaltung des Kontaktkolbens dessen Haften an gewölbten Leiterplatten und damit die Kontaktierung zu verbessern.The object of the invention is therefore to use one of these purposes Adapted special design of the contact piston, its adherence to curved circuit boards and thus improve the contact.

Zur Lösung dieser Aufgabe schlägt die Erfindung die im Kennzeichen des Anspruchs 1 genannten Merkmale vor. Ein so gestalteter Kontaktkopf arbeitet sich beim Andrücken gewissermaßen in die Oberfläche der gewölbten Leiterplatte ein, kann daher nicht von ihr abrutschen und bewirkt einen überraschend guten Kontakt. Da der Kontaktkopf im Durchmesser größer als der Schaft ist, liegt der Schaft immer gegenüber der Leiterplatte frei, auch dann, wenn er nahezu parallel zu ihr liegt und kann das Eingraben des Kontaktkopfes in die Leiterplatte nicht behindern.To solve this problem, the invention proposes that in the characteristic of claim 1 mentioned features. A contact head designed in this way works when pressed into the surface of the curved circuit board, therefore cannot slip off it and creates a surprisingly good contact. Since the contact head is larger in diameter than the shaft, the shaft always lies relative to the printed circuit board, even if it is almost parallel to it and cannot prevent the contact head from digging into the circuit board.

Im einfachsten Fall ist die griffige Profilierung als Rändelung ausgeführt.In the simplest case, the non-slip profiling is designed as knurling.

In bevorzugter Ausgestaltung der Erfindung ist nach den AnsprUchen 3, 4 und 5 der Kontaktkopf als Zylinder mit kegeliger Anfasung und stirnseitiger zentrischer Vertiefung gestaltet. Der Kegelmantel ist mit Schneidkanten versehen, die entweder nach Anspruch 7 längs der Kegelmantellinien in Richtung zur Kegelspitze verlaufen oder nach Anspruch 8 annähernd tangential zur kegeligen Vertiefung liegen.In a preferred embodiment of the invention is according to the claims 3, 4 and 5 the contact head as a cylinder with a conical chamfer and an end face centric recess designed. The surface of the cone is provided with cutting edges, either according to claim 7 along the surface lines of the cone in the direction of the tip of the cone run or lie approximately tangential to the conical recess according to claim 8.

Im letzteren Falle wird der Kontaktkolben beim Andrücken an die Leiterplatte etwas gedreht und bohrt sich somit wie ein Wendelbohrer in sie ein.In the latter case, the contact piston is pressed against the circuit board when it is pressed slightly rotated and thus drills itself into it like a twist drill.

In der Zeichnung ist der erfindungsgemäße Kontaktbaustein dargestellt.The contact module according to the invention is shown in the drawing.

Es zeigen: Fig. 1 Längsschnitt des Kontaktbausteins Fig. 2 Längsschnitt durch den Kontaktkopf in größerem Maßstab Fig. 3 Frontansicht des Kontaktkopfes Fig. 4 Frontansicht einer zweiten Ausführungsform des Kontaktkopfes.They show: FIG. 1 a longitudinal section of the contact module; FIG. 2 a longitudinal section through the contact head on a larger scale Fig. 3 front view of the contact head 4 front view of a second embodiment of the contact head.

In einer zylindrischen Hülse 1 ist ein Kontaktkolben 2 längs- und drehbeweglich geführt. Er wird an einer Umbördelung 3 der Hülse durch eine Schraubenfeder 4 angedrückt, die sich an einem Anschlußstift 5 abstützt, der mittels einer Einbördelung 6 in der Hülse 1 formschlüssig gehalten ist und zur Weiterleitung des Prüfstromes dient.In a cylindrical sleeve 1, a contact piston 2 is longitudinal and rotatably guided. It is attached to a flange 3 of the sleeve by a helical spring 4 pressed, which is supported on a pin 5, which by means of a bead 6 is held positively in the sleeve 1 and for forwarding the test current serves.

Das aus der Hülse herausragende Teilstück des Kontaktkolbens 2 besteht aus einem Schaft 7, der in einer Rundung 8 in einen im Durchmesser größeren, zylindrischen Kontaktkopf 9 übergeht. Der Kontaktkopf 9 ist kegelig angefast mit einem Winkel von ca. 120 °. An dem Kegelmantel 10 sind ringsum in symmetrischer Anordnung dreieckförmige Schneidkanten 11 eingeschliffen, die in einer kegeligen, zentrischen Vertiefung 12 auslaufen und,wie Fig. 3 erkennen läßt, auf die Kegelspitze zu gerichtet sind.The section of the contact piston 2 protruding from the sleeve consists from a shaft 7, which is in a rounding 8 in a larger diameter, cylindrical Contact head 9 passes. The contact head 9 is beveled conically at an angle of approx. 120 °. On the cone jacket 10 are triangular all around in a symmetrical arrangement Cutting edges 11 ground in, in a conical, central recess 12 run out and, as shown in FIG. 3, are directed towards the apex of the cone.

In einer weiteren Ausführungsform nach Fig. 4 verlaufen die Schneidkanten 13 des Kontaktkopfes 14 schräg zu den Kegelmantellinien und annähernd tangential zu der kegeligen Vertiefung 15.In a further embodiment according to FIG. 4, the cutting edges run 13 of the contact head 14 obliquely to the surface lines of the cone and approximately tangential to the conical recess 15.

Claims (8)

Patentansprüche ( 1.) KontaXtbaustein für Meß- und Prüfzwecke, insbesondere zum Prüfen von gewölbten elektrischen Leiterplatten, mit einem in einer Hülse geführten Kontaktkolben, der unter Vorspannung einer in der Hülse angeordneten Schraubenfeder steht, dadurch gekennzeichnet, daß das aus der Hülse (1) herausragende Teilstück des Kontaktkolbens (2) aus einem Schaft (7) und einem ihm gegenüber abgesetzten Kontaktkopf (9, 14) größeren Durchmessers besteht, wobei der Kontaktkopf (9, 14) eine griffige oder scharfkantige Profilierung (Schneidkanten 11, 13) aufweist. Claims (1.) KontaXt module for measuring and testing purposes, in particular for testing curved electrical circuit boards, with one guided in a sleeve Contact piston, which is pretensioned by a helical spring arranged in the sleeve stands, characterized in that the part protruding from the sleeve (1) of the contact piston (2) consists of a shaft (7) and one opposite it The contact head (9, 14) has a larger diameter, the contact head (9, 14) has a handy or sharp-edged profile (cutting edges 11, 13). 2. Kontaktbaustein nach Anspruch 1, dadurch gekennzeichnet, daß der Kontaktkopf (9) kegelig ausgebildet ist. 2. Contact module according to claim 1, characterized in that the Contact head (9) is conical. 3. Kontaktbaustein nach Anspruch 1, dadurch gekennzeichnet, daß der Kontaktkopf (9, 14) als Zylinder mit kegeliger Anfasung (10) gestaltet ist. 3. Contact module according to claim 1, characterized in that the Contact head (9, 14) is designed as a cylinder with a conical bevel (10). 4. Kontaktbaustein nach Anspruch 3, dadurch gekennzeichnet, daß der Kontaktkopf (9) stirnseitig eine zentrische Vertiefung (12) aufweist. 4. Contact module according to claim 3, characterized in that the Contact head (9) has a central recess (12) on the end face. 5. tontaktbaustein nach Anspruch 1, dadurch gekennzeichnet, daß der Kontaktkopf (9, 14) ringsum mit Schneidkanten (11, 13) versehen ist. 5. contact module according to claim 1, characterized in that the Contact head (9, 14) is provided all around with cutting edges (11, 13). 6. Kontaktbaustein nach Anspruch 5, dadurch gekennzeichnet, daß die Schneidkanten (11, 13) am Außenumfang des Kontaktkopfes (9, 14) symmetrisch verteilt sind. 6. Contact module according to claim 5, characterized in that the Cutting edges (11, 13) distributed symmetrically on the outer circumference of the contact head (9, 14) are. 7. Kontaktbaustein nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß die Schneidkanten (11) längs der Kegelmantellinien auf die Kegelspitze des Kontaktkopfes (9) zulaufen (Fig. 3). 7. Contact module according to one of claims 2 to 6, characterized in that that the cutting edges (11) along the cone surface lines on the cone tip of the contact head (9) (Fig. 3). 8. Kontaktbaustein nach Anspruch 4 und 5, dadurch gekennzeichnet, daß die Schneidkanten (13) am Außenumfang annähernd tangential zu einer zentrischen kegeligen Vertiefung (15) verlaufen (Fig.4). 8. Contact module according to claim 4 and 5, characterized in that that the cutting edges (13) on the outer circumference are approximately tangential to a central one conical recess (15) run (Fig. 4).
DE19782852886 1978-12-07 1978-12-07 Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head Granted DE2852886A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782852886 DE2852886A1 (en) 1978-12-07 1978-12-07 Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782852886 DE2852886A1 (en) 1978-12-07 1978-12-07 Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head

Publications (2)

Publication Number Publication Date
DE2852886A1 true DE2852886A1 (en) 1980-06-19
DE2852886C2 DE2852886C2 (en) 1989-04-27

Family

ID=6056539

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782852886 Granted DE2852886A1 (en) 1978-12-07 1978-12-07 Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head

Country Status (1)

Country Link
DE (1) DE2852886A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231772A1 (en) * 1982-08-26 1984-03-01 Feinmetall Gmbh, 7033 Herrenberg Method for producing a test contact element, and the structural design of the contact element
DE3441480A1 (en) * 1984-11-13 1986-05-15 MANIA Elektronik Automatisation Entwicklung und Gerätebau GmbH, 6384 Schmitten CONTACT PEN
DE3716205A1 (en) * 1986-05-21 1987-11-26 Feinmetall Gmbh Spring contact pin for test devices
EP0292590A1 (en) * 1987-05-26 1988-11-30 Feinmetall Gesellschaft mit beschrÀ¤nkter Haftung Contact device for testing equipment
DE3717782A1 (en) * 1987-05-26 1988-12-08 Feinmetall Gmbh Contact-making device for test devices
DE8806162U1 (en) * 1988-05-09 1989-09-07 Nixdorf Computer Ag, 4790 Paderborn, De
EP0432870A2 (en) * 1989-12-04 1991-06-19 Everett/Charles Contact Products Inc. Electrical test probe
WO1999005308A2 (en) * 1997-07-22 1999-02-04 Rapigene, Inc. Apparatus and methods for arraying solution onto a solid support
EP1006363A2 (en) * 1998-12-01 2000-06-07 Hitachi Software Engineering Co., Ltd. Biochip and method for producing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1765461B2 (en) * 1968-05-22 1976-12-16 Bossert, Anneliese, 7530 Pforzheim SPRING CONTACT
DE2717420A1 (en) * 1977-04-20 1978-10-26 Ingun Pruefmittelbau Contact pin for machining or testing device for electronic components - has sensing rod with transversal pins entering in curved slot in hollow shaft

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1765461B2 (en) * 1968-05-22 1976-12-16 Bossert, Anneliese, 7530 Pforzheim SPRING CONTACT
DE2717420A1 (en) * 1977-04-20 1978-10-26 Ingun Pruefmittelbau Contact pin for machining or testing device for electronic components - has sensing rod with transversal pins entering in curved slot in hollow shaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Firmenschrift der Amphenol-Tuchel Electronics GmbH "Federkontakte für optimalen Prüfmittelbau" vom November 1973 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231772A1 (en) * 1982-08-26 1984-03-01 Feinmetall Gmbh, 7033 Herrenberg Method for producing a test contact element, and the structural design of the contact element
DE3441480A1 (en) * 1984-11-13 1986-05-15 MANIA Elektronik Automatisation Entwicklung und Gerätebau GmbH, 6384 Schmitten CONTACT PEN
EP0181429A1 (en) * 1984-11-13 1986-05-21 MANIA Elektronik Automatisation Entwicklung und Gerätebau GmbH Contact probe
DE3716205A1 (en) * 1986-05-21 1987-11-26 Feinmetall Gmbh Spring contact pin for test devices
EP0292590A1 (en) * 1987-05-26 1988-11-30 Feinmetall Gesellschaft mit beschrÀ¤nkter Haftung Contact device for testing equipment
DE3717782A1 (en) * 1987-05-26 1988-12-08 Feinmetall Gmbh Contact-making device for test devices
DE8806162U1 (en) * 1988-05-09 1989-09-07 Nixdorf Computer Ag, 4790 Paderborn, De
EP0432870A2 (en) * 1989-12-04 1991-06-19 Everett/Charles Contact Products Inc. Electrical test probe
EP0432870A3 (en) * 1989-12-04 1992-04-08 Everett/Charles Contact Products Inc. Electrical test probe
WO1999005308A2 (en) * 1997-07-22 1999-02-04 Rapigene, Inc. Apparatus and methods for arraying solution onto a solid support
WO1999005308A3 (en) * 1997-07-22 1999-05-27 Rapigene Inc Apparatus and methods for arraying solution onto a solid support
US6365349B1 (en) 1997-07-22 2002-04-02 Qiagen Genomics, Inc. Apparatus and methods for arraying solution onto a solid support
EP1006363A2 (en) * 1998-12-01 2000-06-07 Hitachi Software Engineering Co., Ltd. Biochip and method for producing the same
EP1006363A3 (en) * 1998-12-01 2000-08-16 Hitachi Software Engineering Co., Ltd. Biochip and method for producing the same

Also Published As

Publication number Publication date
DE2852886C2 (en) 1989-04-27

Similar Documents

Publication Publication Date Title
DE2757717C3 (en) Test pin
DE2425070C3 (en) Electrical connector for coaxial cables
DE102005051449B3 (en) Circular shank chisel, has retaining units divided between edges, which are at distance from each other and extend over part of circumference of clamping sleeve, where units form co-axial concave central section turned to convex groove base
EP0915342B1 (en) Test head for microstructures with interface
DE19957518A1 (en) Contacting outer conductor of coaxial cable, using sleeve nut which is screwed onto socket section to press vanes of ring disc flat
EP0452785B1 (en) Receptacle for a nozzle, especially a nozzle of a laser cutting head
DE4140227A1 (en) DEVICE FOR CONNECTING A CABLE END
EP0275890A1 (en) Round shank pick
DE202005004308U1 (en) Ground connection device for a metal profile
DE2852886A1 (en) Probe contact assembly for printed circuit boards - includes tubular housing with spring-loaded check pin terminating with serrated contact head
DE2945728C2 (en)
EP0705489B1 (en) Device for connecting a coaxial cable to contacts which can be connected to extension lead arrangements
CH589947A5 (en) Test pin for printed circuit boards - with spring loaded shank in barrel and test end with conical hollow for boards test point
DE1665470A1 (en) Electrical connector
EP3870979B1 (en) Single-pole test pin
DE3637190A1 (en) Device and method for mounting components on electronic circuit boards
CH653811A5 (en) METHOD OF ATTACHING A THIN PAINTED JUMPING WIRE TO A TUBULAR CONTACT PIN AND PLUG FOR PERFORMING THE PROCEDURE.
DE3521012C2 (en)
DE1615719C3 (en) Connection, especially for electrical switches
DE3426295A1 (en) Contact pin for a device for testing an electronic printed-circuit board
DE3722485A1 (en) Elastic contact needle and contacting device
EP0495380A2 (en) Probe tip for electric test fixture
DE444255C (en) Safety device for explosive cartridges
DE8535264U1 (en) Plug connection for light guide
DE578654C (en) Device for fastening a conductor wire to plugs, cable lugs and similar contact parts by clamping

Legal Events

Date Code Title Description
OAM Search report available
OC Search report available
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee