DE2924262C2 - Spring-loaded contact module for measuring and testing purposes - Google Patents
Spring-loaded contact module for measuring and testing purposesInfo
- Publication number
- DE2924262C2 DE2924262C2 DE19792924262 DE2924262A DE2924262C2 DE 2924262 C2 DE2924262 C2 DE 2924262C2 DE 19792924262 DE19792924262 DE 19792924262 DE 2924262 A DE2924262 A DE 2924262A DE 2924262 C2 DE2924262 C2 DE 2924262C2
- Authority
- DE
- Germany
- Prior art keywords
- spring
- sleeve
- contact
- piston
- 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.)
- Expired
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Description
Die Erfindung betrifft einen federnden Kontaktbaustein für Meß- und Prüfzwecke, insbesondere zum Prüfen elektrischer Leiterplatten, bestehend aus einer Hülse, die eine Schraubenfeder und einen sich am einen Federende abstützenden, längsbeweglichen Kontaktkolben umschließt.The invention relates to a resilient contact module for measuring and testing purposes, in particular for testing electrical circuit board, consisting of a sleeve that has a helical spring and one attached to it Enclosing the spring end supporting, longitudinally movable contact piston.
Ein derartiger Kontaktbaustein ist aus DE-AS 17 65461 bekannt. Dort ist die Schraubenfeder nicht lösbar mit dem Kontaktkolben verbunden. Das Lot, das die letzte Federwindung mit dem Kontaktkolben zu einem einzigen Teil verlötet, dient als Anschlag gegen das Teil, welches in die Hülse eingesetzt ist. Nachteilig hierbei ist, daß die einzelnen Teile des Kontaktbausteins nicht auswechselbar sind, so daß die Schraubenfeder bei Federbruch nicht ersetzt werden kann.Such a contact module is known from DE-AS 17 65461. The coil spring is not there releasably connected to the contact piston. The solder that connects the last coil of the spring with the contact piston to one Soldered single part, serves as a stop against the part which is inserted into the sleeve. Disadvantage here is that the individual parts of the contact module are not interchangeable, so that the coil spring at Broken spring cannot be replaced.
Auch bei einem Kontaktbaustein nach DE-GM 76 41 155 ist die Schraubenfeder am Kontaktkolben befestigt, dieser Verband ist aber nicht mit der Hülse ummantelt. Bei einer solchen starren Federbefestigung wird die Federwirkung, die zu der in der Ringnut liegenden Endwindung führt, nach kurzer Einbauzeit brechen, da sie den hohen Wechselbeanspruchungen, wie sie sich bei mehreren Millionen Prüfgängen ergeben, nicht gewachsen ist. Denn da diese Windung ruht, während die anschließenden Windungen bei Belastung frei ausfedern, tritt an der Eintrittsstelle in die Nut eine sprunghafte Spannungsspitze auf, die rasch zu einem Federbruch führt.Even with a contact module according to DE-GM 76 41 155, the helical spring is attached to the contact piston, however, this bandage is not covered with the sleeve. With such a rigid spring fastening the spring action, which leads to the end coil lying in the annular groove, will break after a short installation time, because they cannot cope with the high alternating stresses that result from several million test runs is. Because this coil is at rest while the subsequent coils rebound freely under load, a sudden stress peak occurs at the point of entry into the groove, which quickly leads to a spring break leads.
Die Aufgabe der Erfindung besteht darin, einen Kontaktbaustein so zu gestalten, daß seine Einzelteile leicht auswechselbar und so zueinander angeordnet sind, daß in der Schraubenfeder keine übermäßig hohen Spannungsspitzen auftreten.The object of the invention is to design a contact module so that its individual parts are light are interchangeable and arranged to one another that no excessively high voltage peaks in the helical spring appear.
Zur Lösung dieser Aufgabe ist gemäß der Erfindung Hierzu 1 Blatt ZeichnungenTo solve this problem, according to the invention, 1 sheet of drawings is provided
Claims (5)
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 DE2924262A1 (en) | 1981-02-12 |
DE2924262C2 true DE2924262C2 (en) | 1984-12-13 |
Family
ID=6073324
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 (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3620246A1 (en) * | 1986-06-19 | 1987-12-23 | Kammerer Gmbh M | Temperature probe |
Families Citing this family (8)
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 |
CH645730A5 (en) * | 1982-01-08 | 1984-10-15 | Technobal Sa | TEST CONTACT FOR TESTING PRINTED CIRCUITS, AND REMOVABLE CONTACT HEAD FOR SUCH A TEST CONTACT. |
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 |
JPS59188550A (en) * | 1983-04-12 | 1984-10-25 | Fuji Photo Film Co Ltd | Electrical connecting terminal assembly for device for measuring ionic activity |
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1765461B2 (en) * | 1968-05-22 | 1976-12-16 | Bossert, Anneliese, 7530 Pforzheim | SPRING CONTACT |
DE2041280B2 (en) * | 1970-08-19 | 1972-12-21 | CONTACT DEVICE FOR DETACHABLE 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 |
-
1979
- 1979-06-15 DE DE19792924262 patent/DE2924262C2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3620246A1 (en) * | 1986-06-19 | 1987-12-23 | Kammerer Gmbh M | Temperature probe |
Also Published As
Publication number | Publication date |
---|---|
DE2924262A1 (en) | 1981-02-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OB | Request for examination as to novelty | ||
8105 | Search report available | ||
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8330 | Complete disclaimer |