DE2924262A1 - Tester spring-loaded contact assembly - comprises sleeve with collar holding end of spring frictionally attached to contact plunger - Google Patents

Tester spring-loaded contact assembly - comprises sleeve with collar holding end of spring frictionally attached to contact plunger

Info

Publication number
DE2924262A1
DE2924262A1 DE19792924262 DE2924262A DE2924262A1 DE 2924262 A1 DE2924262 A1 DE 2924262A1 DE 19792924262 DE19792924262 DE 19792924262 DE 2924262 A DE2924262 A DE 2924262A DE 2924262 A1 DE2924262 A1 DE 2924262A1
Authority
DE
Germany
Prior art keywords
spring
contact
sleeve
contact plunger
contact module
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
DE19792924262
Other languages
German (de)
Other versions
DE2924262C2 (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 DE19792924262 priority Critical patent/DE2924262C2/en
Publication of DE2924262A1 publication Critical patent/DE2924262A1/en
Application granted granted Critical
Publication of DE2924262C2 publication Critical patent/DE2924262C2/en
Expired 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

Abstract

Lower cost and easy exchange of components in the spring-loaded contact unit for testing p.c.b.s are ensured by the contact plunger (6) featuring end pin (8) in spring (10) which has a turn at its other end held captive by the groove (4) in the sleeve (2). This prevents loss of the contact plunger, the clamped end of the spring exhibiting a smaller o.d. than the rest of the spring. The pin (8) at the tip of the contact plunger is frictionally coupled to the spring whose o.d. is slightly smaller than the i.d. of the sleeve (2).

Description

Federnder Kontaktbaustein fürr Meß- und PrUfzweckeSpring-loaded contact module for measuring and testing purposes

Die Erfindung betrifft einen federnden tontaktbaustein fArMeß- und Prüfzwecke, insbesondere zum Prüfen elektrischer Leiterplatten, bestehend aus einer Hülse, die eine Schraubenfeder und einen sich am einen Federende abstUtzenden, längsbeweglichen tontaktkolben umschließt.The invention relates to a resilient contact module for measuring and measuring Testing purposes, in particular for testing electrical circuit boards, consisting of a Sleeve that has a helical spring and one that supports itself at one end of the spring, which is longitudinally movable enclosing contact piston.

Bekannte federnde tontaktbausteine dieser Bauart sind als eine nicht demontierbare, ummantelte Baueinheit aus Schraubenfeder und tontaktkolben ausgebildet, die in eine Uberhülse auswechselbar eingesteckt ist. Die Überhülse ist in eine Adapterplatte der PrUfeinrichtung eingesetzt und mit einem Anschluß zum Prüfgerät verlötet oder vercrimpt.Known resilient contact blocks of this type are not as one removable, encased unit made of helical spring and contact piston, which is inserted exchangeably into an outer sleeve. The outer sleeve is in an adapter plate the test device used and soldered to a connection to the test device or crimped.

Ein weiterer bekannter Eontaktbaustein wird in der A#pterplatte reibschlüssig befestigt und mittels Steckanschluß mit -dem PrüBgerSt verbunden. Beide tontaktbausteine sind zwar als Ganzes auswechselbar, jedoch können die Einzelteile nicht ausgetauscht werden. Außerdem ist der Platzbedarf dieser bekannten Yontaktbausteine verhältnismäßig groß, im ersten Fall wegen der erforderlichen UberhUlse, im zweiten Fall wegen der Steckverbindung, die zudem teuer in der Herstellung und nicht immer funktionsfähig ist.Another well-known contact module is frictionally engaged in the adapter plate attached and connected to the PrüBgerSt by means of a plug connection. Both contact modules can be exchanged as a whole, but the individual parts cannot be exchanged will. In addition, the space required by these known Yontakt modules is proportionate large, in the first case because of the required cover, in the second case because of the Plug connection, which is also expensive to manufacture and not always functional is.

Die Aufgabe der Erfindung besteht darin, einen tontaktbaustein so zu gestalten, daß er kostengUnstig herstellbar ist, und daß seine Einzelteile leicht austauschbar sind.The object of the invention is to provide a contact module so to design that it is inexpensive to manufacture, and that its individual parts are easy are interchangeable.

Zur Lösung dieser Aufgabe ist gemäß der Erfindung der tontaktkolben am einen Federende gegen Herausfallen aus der Hülse reibschlAssig festgehalten, während das andere Federende an einer Einbördelung der Hülse so stark eingeklemmt ist, daß es gegen Herausfallen gesichert ist.To solve this problem, according to the invention, the contact piston frictionally held at one end of the spring against falling out of the sleeve, while the other end of the spring is jammed so strongly against a bead of the sleeve is that it is secured against falling out.

An beiden Federenden braucht der Reibschluß nur so stark zu sein, daß das Eigengewicht derSchraubenfeder und des rontaktkolbens kompensiert ist. Wird eine geringfügig höhere kraft aufgewendet, so kann der tentaktkolben beispielsweise bei Verschleiß der tontaktspitze oder zusätzlich auch die Schraubenfeder aus der Hülse herausgezogen und ausgetauscht werden.At both ends of the spring the frictional engagement only needs to be strong enough that the weight of the coil spring and the contact piston is compensated. Will a slightly higher force is applied, for example the tentacle piston in the event of wear of the contact tip or, in addition, the coil spring from the Sleeve can be pulled out and replaced.

Ein in der Zeichnung dargestelltes AusfUhrungsbeispiel der Erfindung wird nun kurz erläutert.An exemplary embodiment of the invention shown in the drawing will now be briefly explained.

In eine Adapterplatte 1 ist eine Hülse 2 bis zur Anlage an ihrem Bund 3 fest eingepreBt.An ihrem aus der Adapterplatte vorstehenden Teil ist sie mit einer Einbördelung 4 versehen und mit einem Anschlußkabel 5 zum Prüfgerät (nicht gezeichnet) verlötet oder vercrimpt.In an adapter plate 1 is a sleeve 2 until it rests on its collar 3 firmly pressed in. On its part protruding from the adapter plate, it is fitted with a Flange 4 provided and with a connection cable 5 to the test device (not shown) soldered or crimped.

In dem anderen HUlsenende ist ein rontaktkolben 6 längsbeweglich geführt, dessen Xontaktspitze 7 aus der HUlse herausragt. Der Kontaktkolben 6 ist an seinem im Durchmesser kleineren Zapfen 8 in eine Schraubenfeder 9 reibschlüssig eingesteckt, wodurch die Federwindungen des einen Federendes 10 etwas aufgeweitet und zusammengeschoben sind.In the other end of the sleeve, a contact piston 6 is guided in a longitudinally movable manner, whose Xontaktspitze 7 protrudes from the sleeve. The contact piston 6 is on his Pin 8 with a smaller diameter inserted frictionally into a helical spring 9, whereby the spring coils of one spring end 10 are somewhat expanded and pushed together are.

Das andere Federende 11 hat einen etwas geringeren Außendurchmesser und ist in die Einbördelung 4 der Hülse 2 eingeklemmt.The other spring end 11 has a slightly smaller outer diameter and is clamped into the bead 4 of the sleeve 2.

Claims (5)

Patentansprüche 1. Federnder tontaktbaustein für Meß- und Prtifzwecke, insbesondere zum PrUfen elektrischer Leiterplatten, bestehend aus einer HUlse, die eine Schraubenfeder und einen sich am einen Federende abstUtzenden, längsbeweglichen tontaktkolben umschließt, dadurch gekennzeichnet, daß der Kontaktkolben (6) am einen Federende (10) gegen Herausfallen aus der Hülse (2) reibschlüssig festgehalten ist, während das andere Federende (11) an einer Einbördelung (4) der HUlse (2) eingeklemmt ist. Claims 1. Resilient contact module for measuring and testing purposes, especially for testing electrical circuit boards, consisting of a sleeve that a helical spring and a longitudinally movable one supported at one end of the spring enclosing contact piston, characterized in that the contact piston (6) on one Spring end (10) is frictionally held against falling out of the sleeve (2), while the other end of the spring (11) is clamped on a bead (4) of the sleeve (2) is. 2. Kontaktbaustein nach Anspruch 1, dadurch gekennzeichnet, daß der Außendurchmesser des anderen Federendes (11) kleiner ist als der Außendurchmesser der restlichen Schraubenfeder (3).2. Contact module according to claim 1, characterized in that the The outer diameter of the other end of the spring (11) is smaller than the outer diameter the rest of the coil spring (3). 3. tontaktbaustein nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einbördelung (4) radial in die Lücke zwischen zwei Federwindungen cingreift.3. contact module according to claim 1 or 2, characterized in that that the bead (4) engages radially in the gap between two spring coils. 4. rontaktbaustein nach Anspruch 1, dadurch gekennzeichnet, daß der tontaktkolben (6) einen Zapfen (8) aufweist, der in das eine Federende (10) reibschlUssig haftend eingesteckt ist.4. contact module according to claim 1, characterized in that the Contact piston (6) has a pin (8) which frictionally engages in one spring end (10) is stuck in place. 5. tontaktbaustein nach Anspruch 1, dadurch gekennzeichnet, daß die Außendurchmesser der Schraubenfeder (9) und des tontaktkolbens (6) etwa gleich groß und geringfügig kleiner sind als der Innendurchmesser der Hülse (2).5. contact module according to claim 1, characterized in that the The outer diameter of the helical spring (9) and the contact piston (6) are roughly the same and are slightly smaller than the inner diameter of the sleeve (2).
DE19792924262 1979-06-15 1979-06-15 Spring-loaded contact module for measuring and testing purposes Expired DE2924262C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792924262 DE2924262C2 (en) 1979-06-15 1979-06-15 Spring-loaded contact module for measuring and testing purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792924262 DE2924262C2 (en) 1979-06-15 1979-06-15 Spring-loaded contact module for measuring and testing purposes

Publications (2)

Publication Number Publication Date
DE2924262A1 true DE2924262A1 (en) 1981-02-12
DE2924262C2 DE2924262C2 (en) 1984-12-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792924262 Expired DE2924262C2 (en) 1979-06-15 1979-06-15 Spring-loaded contact module for measuring and testing purposes

Country Status (1)

Country Link
DE (1) DE2924262C2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136896A1 (en) * 1981-09-17 1983-04-14 Ingun Prüfmittelbau GmbH & Co KG Elektronik, 7750 Konstanz Device for testing an electronic circuit board
DE3300247A1 (en) * 1982-01-08 1983-07-28 Technobal S.A., Bienne TEST CONTACT DEVICE FOR TESTING PRINTED CIRCUITS
DE3225907A1 (en) * 1982-07-10 1984-01-12 Feinmetall Gmbh, 7033 Herrenberg Elastic contact module for measuring and testing purposes
DE3406796A1 (en) * 1983-02-25 1984-08-30 Feinmetall Gmbh, 7033 Herrenberg Pneumatic contacting element
EP0121936A2 (en) * 1983-04-12 1984-10-17 Fuji Photo Film Co., Ltd. Connection terminal assembly employable for ionic activity detector
US4551675A (en) * 1983-12-19 1985-11-05 Ncr Corporation Apparatus for testing printed circuit boards
DE3424210A1 (en) * 1984-06-30 1986-01-09 Feinmetall Gmbh, 7033 Herrenberg Contact element for a test adaptor
US4740746A (en) * 1984-11-13 1988-04-26 Tektronix, Inc. Controlled impedance microcircuit probe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3620246C2 (en) * 1986-06-19 1995-09-07 Kammerer Gmbh M Temperature sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2041280A1 (en) * 1970-08-19 1972-02-24 Siemens Ag Contacting device for the releasable electrical contact with the contact points of a circuit arrangement
DE1765461B2 (en) * 1968-05-22 1976-12-16 Bossert, Anneliese, 7530 Pforzheim SPRING CONTACT
DE7641155U1 (en) * 1976-10-27 1977-05-12 Heilmann, Werner, 7750 Konstanz 3000 Hanover contact point Heilmann, Werner, 7750 Konstanz

Patent Citations (3)

* 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
DE2041280A1 (en) * 1970-08-19 1972-02-24 Siemens Ag Contacting device for the releasable electrical contact with the contact points of a circuit arrangement
DE7641155U1 (en) * 1976-10-27 1977-05-12 Heilmann, Werner, 7750 Konstanz 3000 Hanover contact point Heilmann, Werner, 7750 Konstanz

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3136896A1 (en) * 1981-09-17 1983-04-14 Ingun Prüfmittelbau GmbH & Co KG Elektronik, 7750 Konstanz Device for testing an electronic circuit board
DE3300247A1 (en) * 1982-01-08 1983-07-28 Technobal S.A., Bienne TEST CONTACT DEVICE FOR TESTING PRINTED CIRCUITS
US4560926A (en) * 1982-01-08 1985-12-24 Technobal S.A. Contact device for use in the testing of printed circuits and a removable contact head for use in such a device
DE3225907A1 (en) * 1982-07-10 1984-01-12 Feinmetall Gmbh, 7033 Herrenberg Elastic contact module for measuring and testing purposes
DE3406796A1 (en) * 1983-02-25 1984-08-30 Feinmetall Gmbh, 7033 Herrenberg Pneumatic contacting element
EP0121936A2 (en) * 1983-04-12 1984-10-17 Fuji Photo Film Co., Ltd. Connection terminal assembly employable for ionic activity detector
EP0121936A3 (en) * 1983-04-12 1986-08-27 Fuji Photo Film Co., Ltd. Connection terminal assembly employable for ionic activity detector
US4551675A (en) * 1983-12-19 1985-11-05 Ncr Corporation Apparatus for testing printed circuit boards
DE3424210A1 (en) * 1984-06-30 1986-01-09 Feinmetall Gmbh, 7033 Herrenberg Contact element for a test adaptor
US4740746A (en) * 1984-11-13 1988-04-26 Tektronix, Inc. Controlled impedance microcircuit probe

Also Published As

Publication number Publication date
DE2924262C2 (en) 1984-12-13

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OB Request for examination as to novelty
8105 Search report available
8110 Request for examination paragraph 44
D2 Grant after examination
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