EP3295523A1 - Plug-in connector structure for electronic printed circuit boards - Google Patents

Plug-in connector structure for electronic printed circuit boards

Info

Publication number
EP3295523A1
EP3295523A1 EP16751461.1A EP16751461A EP3295523A1 EP 3295523 A1 EP3295523 A1 EP 3295523A1 EP 16751461 A EP16751461 A EP 16751461A EP 3295523 A1 EP3295523 A1 EP 3295523A1
Authority
EP
European Patent Office
Prior art keywords
spring tongues
contact tongue
connector
plug
elastic spring
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
EP16751461.1A
Other languages
German (de)
French (fr)
Other versions
EP3295523B1 (en
Inventor
Joachim WOLLBECK
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.)
Hottinger Bruel and Kjaer GmbH
Original Assignee
Hottinger Baldwin Messtechnik 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 Hottinger Baldwin Messtechnik GmbH filed Critical Hottinger Baldwin Messtechnik GmbH
Publication of EP3295523A1 publication Critical patent/EP3295523A1/en
Application granted granted Critical
Publication of EP3295523B1 publication Critical patent/EP3295523B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • 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
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/7017—Snap means
    • H01R12/7023—Snap means integral with the coupling device
    • 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
    • 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
    • H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device

Definitions

  • the invention relates to a connector construction for electronic circuit boards and more particularly to a connector construction which can be used in automobile and aircraft construction.
  • Temperature measurement with a thermocouple utilizes the effect of charge separation along an electrical conductor over a temperature gradient.
  • the size of the charge separation is material-dependent.
  • thermo-voltage an analog-to-digital converter
  • thermoelectric cable - z. B. NiCr and Ni on a same conductor material, for. B. transferred to Cu At the comparison measuring point, the different materials of the thermoelectric cable - z. B. NiCr and Ni on a same conductor material, for. B. transferred to Cu.
  • the temperature of the reference junction is measured via a temperature sensor and fed as a signal to the analog-to-digital converter. The evaluation of the digitized data makes it possible to deduce the temperature of the measuring point.
  • the socket element of such a connector is mechanically and electrically connected to the circuit board by means of push-through pins according to the prior art.
  • a connection is not sufficiently long-term stability and especially filigree connectors do not guarantee the theoretically expected accuracy, especially if the connector is often opened and closed.
  • the object of the invention was to increase the measurement accuracy and long-term stability by improving such a connector and in particular to ensure a long-term stable temperature measurement.
  • an insulation plate on which at least on one side a metal layer is firmly applied, at least one flat contact element with two end portions, wherein the first end portion is formed as a fastening portion which is connected by means of an electrically conductive bonding material with the metal layer.
  • the second end portion is formed as a rigid contact tongue which projects beyond the edge of the insulation plate.
  • a, with a cable connected Aufsteckü is provided for attachment to the contact tongue, wherein the Aufsteckü has at least two elastic spring tongues which are bent at their end portions so that they face with their convex sides and in the assembled state, the rigid contact tongue Contact on both sides under a mechanical preload. Both spring tongues have the same spring characteristic.
  • a mechanical guide is provided which allows the bent spring tongues are precisely centered on the rigid contact tongue pushed. When pushed on and pushed over, no bending moment acts on the contact tongue, since the mechanical guidance prevents jamming or an asymmetrical position. Thus, the tall Anlagen only shear forces, cause no negative material changes due to the large-area junction.
  • the elastic spring tongues on at least one longitudinal slot, so that the ends of the spring tongues are divided into two.
  • the attachment portion of the contact element mounted on the printed circuit board is connected to the metal layer by means of an SMD connection.
  • Fig. 1 shows an embodiment of a connector for a thermocouple connector according to the prior art.
  • Fig. 2 shows another embodiment of a connector for a
  • Fig. 3 shows the embodiment of FIG. 2 in side view.
  • Fig. 4 shows an improved embodiment of a connector for a thermocouple connector.
  • Fig. 5 shows a further improved embodiment of a connector for a thermocouple connector.
  • Fig. 1 shows an embodiment of a connector for a thermocouple connector according to the prior art, wherein a female member 2 is fixed in the bore of a printed circuit board 1 by a soldering point.
  • the opposite second socket element is not shown.
  • the spring-trained socket element 2 is deformed according to the curved double arrow, as well as the overlying, but not drawn socket element.
  • a so-called surface pressure arises at the lower bushing element 2, which can lead to a change in the material structure, which influences the measurement results.
  • Fig. 2 shows a somewhat improved embodiment of a connector for a thermal connector, wherein the lower sleeve member 2 is soldered to the circuit board 1 over a large area. Nevertheless, the effect of the surface pressure in the region X is present here as well, and thus also the disadvantageous effects described in FIG.
  • FIG. 3 shows the embodiment of FIG. 2 in side view.
  • X again shows the undesired surface pressure at the edge of the PCB.
  • the small opposing arrows show shear forces caused by the frictional force between the male member 3 and the female member 2.
  • a flat contact element 3 is electrically conductively attached on the insulating plate 1 with the metal layer 1a.
  • the rigid contact tongue 3 a protrudes beyond the edge of the insulation plate 1.
  • the attachable unit connected to the cable with two elastic spring tongues 4 for attachment to the rigid contact tongue 3a is provided with a mechanical guide, which is symbolized here only by the two thick arrows.
  • the two elastic spring tongues 4 are bent at their end portions, so that they face each other with their convex sides and contact the rigid contact tongue 3a in the assembled state by means of a mechanical bias on both sides. It is important to mention that the two elastic spring tongues have the same spring characteristic.
  • the precise mechanical guidance allows the convex portions of the elastic spring tongues are pushed centered on the rigid contact tongue 3a, so that when pushed and pushed on the contact tongue 3a no bending moment acts.
  • Fig. 5 shows elastic spring tongues 4, which have a longitudinal slot 5, so that the ends of the spring tongues and already the convex portions are divided into two.
  • This connector design allows that when sliding the elastic spring tongues and very low bending moments, which could occur due to manufacturing tolerances, are largely avoided, thereby improving the long-term stability of the connector construction even further.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention relates to a plug-in connector structure for printed circuit boards having high long term stability with very precise measurements. Said aim is achieved by means of a plug-in connector structure with the following characteristics: an insulation plate firmly arranged on the at least one side of a metal layer; at least one flat contact element with two end sections, the first end section being designed as a securing section, and being connected to the metallic layer by means of an electrically conductive connecting material. The second end section is designed as a rigid contact tongue which protrudes over the edge of the insulation plate. The counter-piece is a plug-in device connected to a cable provided for plugging into the contact tongue, said plug-in device being provided with at least two elastic spring tongues which are curved on the end sections thereof such that the convex sides are arranged directly opposite and are in contact with the rigid contact tongue on both sides, due the mechanical stress when the connector is in the plugged-in state The two spring tongues have the same load deflection curve. The connector is also provided with a mechanical guide system enabling the incurved spring tongues to slide in a centered manner on the contact tongue.

Description

Steckverbinderkonstruktion für elektronische Leiterplatten  Connector construction for electronic circuit boards
Die Erfindung betrifft eine Steckverbinderkonstruktion für elektronische Leiterplatten und insbesondere eine Steckverbinderkonstruktion, die im Automobil und Flugzeugbau einsetzbar ist. The invention relates to a connector construction for electronic circuit boards and more particularly to a connector construction which can be used in automobile and aircraft construction.
Auch im Automobilbau werden zukünftig zunehmend drive by wire-Systeme eingesetzt. Es ist bekannt, dass an diese Systeme, die die Lenkung und Bremsen betätigen, sehr hohe Anforderungen bezüglich der Zuverlässigkeit gestellt werden. Diese hohe Zuverlässigkeit ist durch mehrfache Redundanz erreichbar. Andererseits wird im Fahrzeugbau, mehr aber noch im Flugzeugbau eine Leichtbauweise angestrebt. Es ist also zur Gewichts- und Kostenersparnis prinzipiell vorteilhaft, möglichst wenig redundante Systeme einzusetzen. Daher müssen solche Systeme Bauteile mit einer hohen Zuverlässigkeit verwendet werden. Drive-by-wire systems will also increasingly be used in the automotive industry in the future. It is known that these systems, which operate the steering and braking, very high reliability requirements are made. This high reliability is achievable through multiple redundancy. On the other hand, a lighter construction is sought in vehicle construction, but even more in aircraft. It is therefore advantageous for weight and cost savings to use as few redundant systems as possible. Therefore, such systems must be used with high reliability components.
Steckverbinderkonstruktionen, die für Messungen mittels Thermoelemente benötigt werden, sind besonders störempfindlich. Bei der Temperaturmessung mit einem Thermoelement wird der Effekt der Ladungstrennung entlang eines elektrischen Leiters über einen Temperaturgradienten genutzt. Die Größe der Ladungstrennung ist materialabhäng. Über den Vergleich der Größe der Ladungstrennung zweier unterschiedlicher Materialien bei bekannter Temperatur des jeweils einen Leiterendes, der Vergleichsmessstelle, lässt sich auf die Temperatur des jeweils anderen Leiterendes, der Messstelle, schließen. Die Leiterenden der Messstelle werden dazu galvanisch verbunden. Connector constructions required for measurements by thermocouples are particularly susceptible to interference. Temperature measurement with a thermocouple utilizes the effect of charge separation along an electrical conductor over a temperature gradient. The size of the charge separation is material-dependent. By comparing the size of the charge separation of two different materials at a known temperature of the one conductor end, the comparison measuring point, it is possible to conclude on the temperature of the other end of the conductor, the measuring point. The conductor ends of the measuring point are galvanically connected.
Bei dieser Messung wird ein Analog-Digital-Umsetzer verwendet, der die elektrische Spannung an den Kontakten der Vergleichsstelle erfasst, nachfolgend als Thermos- pannung bezeichnet. An der Vergleichsmessstelle werden die unterschiedlichen Ma- terialien der Thermoleitung - z. B. NiCr und Ni auf ein gleiches Leitermaterial, z. B. Cu überführt. Über einen Temperatursensor wird die Temperatur der Vergleichsstelle gemessen und als Signal dem Analog-Digital-Umsetzer zugeführt. Über die Auswertung der digitalisierten Daten lässt sich auf die Temperatur der Messstelle schließen. In this measurement, an analog-to-digital converter is used, which detects the electrical voltage at the contacts of the reference junction, hereinafter referred to as thermo-voltage. At the comparison measuring point, the different materials of the thermoelectric cable - z. B. NiCr and Ni on a same conductor material, for. B. transferred to Cu. The temperature of the reference junction is measured via a temperature sensor and fed as a signal to the analog-to-digital converter. The evaluation of the digitized data makes it possible to deduce the temperature of the measuring point.
Das Buchsenelement einer solchen Steckverbindung wird gemäß dem Stand der Technik mittels Durchsteckpins durch Verlöten mechanisch und elektrisch mit der Leiterplatte verbunden. Es hat sich jedoch herausgestellt, dass eine solche Verbindung nicht ausreichend langzeitstabil ist und insbesondere filigrane Steckverbinder nicht die theoretisch zu erwartende Messgenauigkeit gewährleisten, besonders dann, wenn die Steckverbindung häufig geöffnet und geschlossen wird. The socket element of such a connector is mechanically and electrically connected to the circuit board by means of push-through pins according to the prior art. However, it has been found that such a connection is not sufficiently long-term stability and especially filigree connectors do not guarantee the theoretically expected accuracy, especially if the connector is often opened and closed.
Somit bestand die Aufgabe der Erfindung darin, die Messgenauigkeit und Langzeitstabilität durch die Verbesserung einer derartigen Steckverbindung zu erhöhen und insbesondere eine langzeitstabile Temperaturmessung zu gewährleisten. Thus, the object of the invention was to increase the measurement accuracy and long-term stability by improving such a connector and in particular to ensure a long-term stable temperature measurement.
Diese Aufgabe wurde mit einer Steckverbinderkonstruktion mit nachfolgenden This task was done with a connector design with subsequent
Merkmalen gelöst: einer Isolationsplatte, auf der wenigstens auf einer Seite eine Metallschicht fest aufgebracht ist, wenigstens einem flachen Kontaktelement mit zwei Endabschnitten, wobei der erste Endabschnitt als Befestigungsabschnitt ausgebildet ist, der mittels einem elektrisch leitenden Verbindungsmaterial mit der Metallschicht verbunden ist. Der zweite Endabschnitt ist als starre Kontaktzunge ausgebildet, die über den Rand der Isolationsplatte übersteht. Als Gegenstück ist eine, mit einem Kabel verbundene Aufsteckeinheit zum Aufstecken auf die Kontaktzunge vorgesehen ist, wobei die Aufsteckeinheit wenigsten zwei elastische Federzungen aufweist, die an ihren Endabschnitte gebogen sind, so dass sie sich mit ihren konvexen Seiten gegenüberstehen und im zusammengesteckten Zustand die starre Kontaktzunge unter einer mechanischen Vorspannung beidseitig kontaktieren. Beide Federzungen weisen die gleiche Federkennlinie auf. Weiterhin ist eine mechanische Führung vorgesehen die ermöglicht, dass die gebogenen Federzungen genau zentriert auf die starre Kontaktzunge schiebbar sind. Beim Aufschieben und im aufgeschobenen Zustand wirkt auf die Kontaktzunge kein Biegemoment, da die mechanische Führung, ein Verkanten oder eine unsymmetrische Lage verhindert. Somit wirken auf die Me- tallschicht lediglich Scherkräfte, auf Grund der großflächigen Verbindungsstelle keine negativen Materialveränderungen bewirken. Characteristics solved: an insulation plate on which at least on one side a metal layer is firmly applied, at least one flat contact element with two end portions, wherein the first end portion is formed as a fastening portion which is connected by means of an electrically conductive bonding material with the metal layer. The second end portion is formed as a rigid contact tongue which projects beyond the edge of the insulation plate. As a counterpart, a, with a cable connected Aufsteckeinheit is provided for attachment to the contact tongue, wherein the Aufsteckeinheit has at least two elastic spring tongues which are bent at their end portions so that they face with their convex sides and in the assembled state, the rigid contact tongue Contact on both sides under a mechanical preload. Both spring tongues have the same spring characteristic. Furthermore, a mechanical guide is provided which allows the bent spring tongues are precisely centered on the rigid contact tongue pushed. When pushed on and pushed over, no bending moment acts on the contact tongue, since the mechanical guidance prevents jamming or an asymmetrical position. Thus, the tallschicht only shear forces, cause no negative material changes due to the large-area junction.
Nach Anspruch 2 weisen die elastischen Federzungen wenigstens einen Längsschlitz auf, so dass die Enden der Federzungen zweigeteilt sind. Diese Weiterbildung der Steckverbinderkonstruktion ermöglicht, dass beim Aufschieben der elastischen Federzungen auch sehr geringe Biegemomente, die durch Fertigungstoleranzen auftreten könnten, weitgehend vermieden werden, wodurch sich die Langzeitstabilität der Steckverbinderkonstruktion noch weiter verbessert. According to claim 2, the elastic spring tongues on at least one longitudinal slot, so that the ends of the spring tongues are divided into two. This development of the connector construction allows that when pushing the elastic spring tongues and very low bending moments, which could occur due to manufacturing tolerances, are largely avoided, thereby further improving the long-term stability of the connector construction.
Nach Anspruch 3 ist der Befestigungsabschnitt des auf der Leiterplatte befestigten Kontaktelements mittels einer SMD-Verbindung mit der Metallschicht verbunden. Mit dieser Konstruktion ist es möglich, die bewährte SMD-Verbindungstechnik, die jedoch äußerst empfindlich gegenüber mechanische Biegespannungen ist, vorteilhaft als langzeitstabile Steckverbindung zu nutzen, ohne dass auch bei hochgenauen Messungen zu große Messfehler auftreten. According to claim 3, the attachment portion of the contact element mounted on the printed circuit board is connected to the metal layer by means of an SMD connection. With this design, it is possible to use the proven SMD connection technology, which is extremely sensitive to mechanical bending stresses, advantageously as a long-term stable plug-in connection, without too great measuring errors occur even with highly accurate measurements.
Die Erfindung wird anhand von schematischen Zeichnungen näher erläutert: The invention will be explained in more detail with reference to schematic drawings:
Fig. 1 zeigt eine Ausführungsform einer Steckverbindung für einen Thermoelementstecker nach dem Stand der Technik. Fig. 1 shows an embodiment of a connector for a thermocouple connector according to the prior art.
Fig. 2 zeigt eine weitere Ausführungsform einer Steckverbindung für einen Fig. 2 shows another embodiment of a connector for a
Thermoelementstecker nach dem Stand der Technik.  Thermocouple plug according to the prior art.
Fig. 3 zeigt die Ausführungsform nach Fig. 2 in der Seitenansicht. Fig. 3 shows the embodiment of FIG. 2 in side view.
Fig. 4 zeigt eine verbesserte Ausführungsform einer Steckverbindung für einen Thermoelementstecker. Fig. 4 shows an improved embodiment of a connector for a thermocouple connector.
Fig. 5 zeigt eine weitere verbesserte Ausführungsform einer Steckverbindung für einen Thermoelementstecker. Die Fig. 1 zeigt eine Ausführungsform einer Steckverbindung für einen Thermoelementstecker nach dem Stand der Technik, wobei ein Buchsenelement 2 in der Bohrung einer Leiterplatte 1 durch einen Lötpunkt befestigt ist. Zur besseren Verständlichkeit ist in der Fig. 1 das gegenüberliegende zweite Buchsenelement nicht eingezeichnet. Beim Einstecken und Ausstecken des Steckerelements 3 gemäß dem geraden Doppelpfeil wird das federnd ausgebildete Buchsenelement 2 gemäß dem gebogenen Doppelpfeil deformiert, ebenso das darüber liegende, aber nicht gezeichnete Buchsenelement. An der mit X bezeichneten Stelle entsteht bei dem unteren Buchsenelement 2 eine sogenannte Flächenpressung, die zur Veränderung der Materialstruktur führen kann, die die Messergebnisse beeinflusst. Fig. 5 shows a further improved embodiment of a connector for a thermocouple connector. Fig. 1 shows an embodiment of a connector for a thermocouple connector according to the prior art, wherein a female member 2 is fixed in the bore of a printed circuit board 1 by a soldering point. For ease of understanding in Fig. 1, the opposite second socket element is not shown. When inserting and unplugging the plug element 3 according to the straight double arrow, the spring-trained socket element 2 is deformed according to the curved double arrow, as well as the overlying, but not drawn socket element. At the point indicated by X, a so-called surface pressure arises at the lower bushing element 2, which can lead to a change in the material structure, which influences the measurement results.
Die Fig. 2 zeigt eine etwas verbesserte Ausführungsform einer Steckverbindung für einen Thermostecker, wobei das untere Buchsenelement 2 auf der Leiterplatte 1 großflächig aufgelötet ist. Trotzdem ist auch hier der Effekt der Flächenpressung im Bereich X vorhanden und damit auch die in Fig. 1 beschriebenen nachteiligen Effekte. Fig. 2 shows a somewhat improved embodiment of a connector for a thermal connector, wherein the lower sleeve member 2 is soldered to the circuit board 1 over a large area. Nevertheless, the effect of the surface pressure in the region X is present here as well, and thus also the disadvantageous effects described in FIG.
Die Fig. 3 zeigt die Ausführungsform nach Fig. 2 in der Seitenansicht. Mit X ist wieder die unerwünschte Flächenpressung an der Leiterplattenkante gezeigt. Die kleinen gegenüberliegenden Pfeile zeigen Scherkräfte, die durch die Reibkraft zwischen dem Steckerelement 3 und dem Buchsenelement 2 entstehen. Fig. 3 shows the embodiment of FIG. 2 in side view. X again shows the undesired surface pressure at the edge of the PCB. The small opposing arrows show shear forces caused by the frictional force between the male member 3 and the female member 2.
Die Figur 4 zeigt die Steckverbinderkonstruktion nach Anspruch 1. Auf der Isolationsplatte 1 mit der Metallschicht 1a ist ein flaches Kontaktelement 3 elektrisch leitend befestigt. Die starre Kontaktzunge 3a steht über den Rand der Isolationsplatte 1 hinaus. Die mit dem Kabel verbundene Aufsteckeinheit mit zwei elastischen Federzungen 4 zum Aufstecken auf die starre Kontaktzunge 3a ist mit einer mechanischen Führung versehen, die hier lediglich durch die beiden dicken Pfeile symbolisiert ist. Die zwei elastische Federzungen 4 sind an ihren Endabschnitte gebogen, so dass sie sich mit ihren konvexen Seiten gegenüberstehen und im zusammengesteckten Zustand die starre Kontaktzunge 3a mittels einer mechanischen Vorspannung beidseitig kontaktieren. Es ist wichtig zu erwähnen, dass die beiden elastischen Federzungen die gleiche Federkennlinie aufweisen. Die präzise mechanische Führung er- möglicht, dass die konvexen Abschnitte der elastischen Federzungen zentriert über die starre Kontaktzunge 3a geschoben werden, sodass beim Aufschieben und im aufgeschobenen Zustand auf die Kontaktzunge 3a kein Biegemoment wirkt. 4 shows the connector construction according to claim 1. On the insulating plate 1 with the metal layer 1a, a flat contact element 3 is electrically conductively attached. The rigid contact tongue 3 a protrudes beyond the edge of the insulation plate 1. The attachable unit connected to the cable with two elastic spring tongues 4 for attachment to the rigid contact tongue 3a is provided with a mechanical guide, which is symbolized here only by the two thick arrows. The two elastic spring tongues 4 are bent at their end portions, so that they face each other with their convex sides and contact the rigid contact tongue 3a in the assembled state by means of a mechanical bias on both sides. It is important to mention that the two elastic spring tongues have the same spring characteristic. The precise mechanical guidance allows the convex portions of the elastic spring tongues are pushed centered on the rigid contact tongue 3a, so that when pushed and pushed on the contact tongue 3a no bending moment acts.
Aus der Fig. 4 ist erkennbar, dass es in keiner Position eine Flächenpressung X gibt, sondern nur Scherkräfte, die aber keinen negativen Einfluss auf die Messgenauigkeit haben. From Fig. 4 it can be seen that there is no surface pressure X in any position, but only shear forces, but have no negative impact on the measurement accuracy.
Die Fig. 5 zeigt elastischen Federzungen 4, die einen Längsschlitz 5 aufweisen, so dass die Enden der Federzungen und bereits die konvexen Abschnitte zweigeteilt sind. Diese Steckverbinderkonstruktion ermöglicht, dass beim Aufschieben der elastischen Federzungen auch sehr geringe Biegemomente, die durch Fertigungstoleranzen auftreten könnten, weitgehend vermieden werden, wodurch sich die Langzeitstabilität der Steckverbinderkonstruktion noch weiter verbessert. Fig. 5 shows elastic spring tongues 4, which have a longitudinal slot 5, so that the ends of the spring tongues and already the convex portions are divided into two. This connector design allows that when sliding the elastic spring tongues and very low bending moments, which could occur due to manufacturing tolerances, are largely avoided, thereby improving the long-term stability of the connector construction even further.

Claims

Ansprüche claims
1. Steckverbinderkonstruktion mit nachfolgenden Merkmalen: 1. Connector construction with the following features:
- einer Isolationsplatte (1 ), auf der wenigstens auf einer Seite eine Metallschicht (1 a) fest aufgebracht ist,  - An insulation plate (1) on which at least on one side of a metal layer (1 a) is firmly applied,
- wenigstens einem flachen Kontaktelement (3) mit zwei Endabschnitten, wobei - At least a flat contact element (3) having two end portions, wherein
- der erste Endabschnitt als Befestigungsabschnitt (3b) ausgebildet ist und mittels einem elektrisch leitenden Verbindungsmaterial mit der Metallschicht (1a) verbunden ist und - The first end portion is formed as a fastening portion (3b) and is connected by means of an electrically conductive bonding material with the metal layer (1 a) and
- der zweite Endabschnitt als starre Kontaktzunge (3a) ausgebildet ist und über den Rand der Isolationsplatte (1 ) übersteht,  - The second end portion is formed as a rigid contact tongue (3a) and over the edge of the insulating plate (1),
- eine, mit einem Kabel verbundene Aufsteckeinheit zum Aufstecken auf die Kontaktzunge (3a) vorgesehen ist, wobei die Aufsteckeinheit wenigsten zwei elastische Federzungen (4, 4) aufweist, die an ihren Endabschnitte gebogen sind, so dass sie sich mit ihren konvexen Seiten gegenüberstehen und im zusammengesteckten Zustand die starre Kontaktzunge (3a) unter mechanischen Vorspannung beidseitig kontaktieren, wobei die elastischen Federzungen die gleiche Federkennlinie aufweisen, - One, connected to a cable Aufsteckeinheit for attachment to the contact tongue (3a) is provided, wherein the Aufsteckeinheit has at least two elastic spring tongues (4, 4) which are bent at their end portions, so that they face with their convex sides and in the assembled state contact the rigid contact tongue (3a) on both sides under mechanical pretension, wherein the elastic spring tongues have the same spring characteristic,
- eine mechanische Führung die ausgebildet ist, die konvexen Seiten der elastischen Federzungen (4, 4) zentriert über die starre Kontaktzunge (3a) zu schieben, sodass beim Aufschieben und im aufgeschobenen Zustand auf die Kontaktzunge (3a) kein Biegemoment an der Befestigungsstelle (X) wirkt. - A mechanical guide is formed, the convex sides of the elastic spring tongues (4, 4) centered on the rigid contact tongue (3a) to push so that when pushing and in the pushed state on the contact tongue (3a) no bending moment at the attachment point (X ) acts.
2. Steckverbinderkonstruktion nach Anspruch 1 , wobei die elastischen Federzungen wenigstens einen Längsschlitz (2a) aufweisen, so dass die Enden der Federzungen zweigeteilt sind. 2. Connector construction according to claim 1, wherein the elastic spring tongues have at least one longitudinal slot (2a), so that the ends of the spring tongues are divided into two.
3. Steckverbinderkonstruktion nach Anspruch 1 , wobei der Befestigungsabschnitt (3b) mittels einer SMD-Verbindung auf der Metallschicht 1a befestigt ist. 3. Connector construction according to claim 1, wherein the fixing portion (3b) is fixed by means of an SMD connection on the metal layer 1a.
EP16751461.1A 2015-05-10 2016-05-10 Plug connector structure for electronic printed circuit boards Active EP3295523B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015005909 2015-05-10
PCT/DE2016/000200 WO2016180394A1 (en) 2015-05-10 2016-05-10 Plug-in connector structure for electronic printed circuit boards

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EP3295523A1 true EP3295523A1 (en) 2018-03-21
EP3295523B1 EP3295523B1 (en) 2020-10-07

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ES (1) ES2839884T3 (en)
WO (1) WO2016180394A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102018216143B3 (en) * 2018-09-21 2020-03-19 Continental Automotive Gmbh Contact arrangement and device with a base plate and a contact arrangement arranged thereon
CN111707959B (en) * 2020-05-29 2022-12-27 苏州浪潮智能科技有限公司 System and method for testing integrity of server board card power supply

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Publication number Priority date Publication date Assignee Title
NL292842A (en) * 1962-05-17
DE8816132U1 (en) * 1988-12-28 1989-02-16 Robert Bosch Gmbh, 7000 Stuttgart, De
DE102006001876A1 (en) * 2006-01-13 2007-11-08 Siemens Ag Component with an electrical printed circuit board
DE202011106573U1 (en) * 2011-10-11 2011-12-05 Erni Electronics Gmbh Plug element for contacting a printed circuit board
DE102011119842B4 (en) * 2011-12-01 2013-11-28 I F M Electronic Gmbh Electrical connection element and circuit board arrangement

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WO2016180394A1 (en) 2016-11-17
EP3295523B1 (en) 2020-10-07

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