EP2091109B1 - Hardened conductor-connector with mass connection - Google Patents

Hardened conductor-connector with mass connection Download PDF

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Publication number
EP2091109B1
EP2091109B1 EP09000538.0A EP09000538A EP2091109B1 EP 2091109 B1 EP2091109 B1 EP 2091109B1 EP 09000538 A EP09000538 A EP 09000538A EP 2091109 B1 EP2091109 B1 EP 2091109B1
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EP
European Patent Office
Prior art keywords
circuit card
circuit board
contact
connector
ground connection
Prior art date
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Active
Application number
EP09000538.0A
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German (de)
French (fr)
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EP2091109A3 (en
EP2091109A2 (en
Inventor
Dieter Lüttermann
Günter Pape
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Harting Electronics GmbH and Co KG
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Harting Electronics GmbH and Co KG
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Publication of EP2091109A2 publication Critical patent/EP2091109A2/en
Publication of EP2091109A3 publication Critical patent/EP2091109A3/en
Application granted granted Critical
Publication of EP2091109B1 publication Critical patent/EP2091109B1/en
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    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/6485—Electrostatic discharge protection
    • 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
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits

Definitions

  • the invention relates to a system of printed circuit board connector and printed circuit board according to the preamble of claim 1.
  • Such a system is required in order to ensure not only a mechanically exact guidance of a printed circuit board in a printed circuit board connector but also a secure ground connection between the printed circuit board and the plug-in connector.
  • the US 4,776,805 shows a printed circuit board connector and an associated printed circuit board, wherein the printed circuit board connector has a plug-in slot, are arranged in the electrical contact elements for direct plug-in printed circuit boards.
  • the printed circuit board is pressed against a ground contact.
  • the pressing force receives the pressure element from a coil spring.
  • the US 2002/0013075 A1 shows a printed circuit board which can be inserted into a printed circuit board connector.
  • the printed circuit board connector has a flexible ground contact. When inserting the circuit board, the ground contact is bent slightly to the side and contacted the designated contact point of the circuit board.
  • the invention is therefore based on the object to form a system of the type mentioned in that a simple and reliable ground connection between the circuit board and a connector is made.
  • the printed circuit board connector on at least one of its corner regions on a specially shaped ground terminal contact.
  • the ground terminal contact is integrated as a separate part in the connector housing, with which it closes the insertion slot at one end, on which the circuit board slides along during insertion advantageous.
  • the ground terminal contact is made of an electrically conductive material, preferably made of solid metal, locked in the non-conductive connector housing and advantageously has an electrically conductive connection to the circuit board on which the connector housing is mounted.
  • a resilient contact this can be done by a solder pin or by a press-fit.
  • a connection from or through the circuit board into a corresponding bore (possibly with a thread) in the ground terminal contact is provided.
  • a ground terminal contact is provided, which is designed as an electrically conductive stamped and bent part, and in turn has an electrical connection to a grounding conductor on the circuit board, on which the printed circuit board connector is mounted.
  • the printed circuit board to be used in the printed circuit board connector with a grounding conductor track to be arranged at the edge of the card in order to achieve a direct contact with the ground terminal contact.
  • the ground-conducting track is to be provided at the side edges of the printed circuit board at least in the immediate plug-in area.
  • the ground track can be galvanically applied or can be designed as an additional applied, metallic surface, angled or U-shaped, guided around the outer edge, on a side facing the ground terminal.
  • Another advantage is that such a equipped printed circuit board connector survives higher mating cycles, since the relatively sharp edges of the printed circuit board edges, in conjunction with the depending on the production quality rough surface of the printed circuit board edges, when plugged directly into the slot increased friction to the usual Exercise plastic wall in the two corners, so that they are exposed to increased wear.
  • a mounted on a printed circuit board 40 PCB connector 1 with electrical contact elements 8 and a ground terminal 10 is shown.
  • the printed circuit board connector 1 has a connector housing 2 with a plug-in slot 3 for direct contacting with a printed circuit board 30.
  • an S-shaped pressure spring 5 is inserted in the slot 3 on the opposite side of the ground terminal 10, by means of the printed circuit board 30 immediately when inserted against the ground terminal 10 is pressed 10, without already contacting with an electrical contact from the circuit board and the Connector is done.
  • the ground terminal 10 is in a first variant in the Fig. 2 shown.
  • This shows a massive metallic contact in Fig. 2a with a press-fit 13, in Fig. 2b with a EinlötWallet 14 and in the Fig. 2c equipped with a bore 15.
  • the body shape shows a slightly L-shaped design with a dome 11, which is provided for contacting the printed circuit board 30.
  • two locking lugs 12 are formed in the foot region of the ground terminal contact.
  • FIG. 3 A half way plugged into the printed circuit board connector 1 printed circuit board 30 to the ground terminal 10 is in the Fig. 3 shown. It can be seen that in the corner region opposite to the ground terminal contact 10, the pressure spring 5 is arranged, which presses the circuit board 30 against the ground terminal contact 10. Wherein the actual reason of the pressure spring 5 is to merge accurately in this system very close together arranged contacts - and even before the contacts contact each other when inserting the circuit board 30 in the printed circuit board connector 1. At the same time, in the plug-in region 31 on the printed circuit board 30, a ground trace 33 can be seen, which also extends to the side edge of the printed circuit board, in FIG where it is applied there galvanically or is additionally fixed as an angled sheet metal part 34, as in Fig. 4 is shown.
  • the Fig. 5 shows a printed circuit board connector 1 with a ground terminal 20, which is designed as a punched and angled contact rail.
  • a contact tip 21 for contacting with one of the mass-leading side surfaces of the printed circuit board.
  • Lateral locking hooks 22 are provided for a secure hold within the connector housing.
  • the connection to a ground track on the circuit board 40 on which the printed circuit board connector 1 is fixed takes place, as in the case of the pin-like ground terminal contact 10, via a press-in or solder connection 23.
  • a spring contact 24 can be used for this purpose, as in FIG Fig. 6 executed, be provided.
  • a printed circuit board connector in which the ground terminal contact 28 is formed from a stamped metal strip, which is adapted to the outer housing shape and is placed from the outside in a correspondingly provided recess 6 on the connector housing 2.
  • the contact is designed as asymmetrical U, and is latched to the shorter leg at one of the corner regions 4 in the slot region 3, so that it contacts the tip 21 of an inserted printed circuit board 30, and is externally attached to a locking button 7 provided on the connector housing 2 locked.
  • the contact area then facing the printed circuit board 40 is either SMD-capable for soldering or-as shown here-designed with resilient contacts 24 for pressing onto a ground-carrying conductor track of the printed circuit board 40.
  • the Fig. 7 shows several variants of the punched, angled ground terminal contacts 20, 20 ', 28, which are required in or on one of the corner regions 4 of the printed circuit board connector 1 for contacting with a plugged circuit board 30.
  • Fig. 7a the punched, angled ground terminal contact 20, which is provided for the inner insert in the connector housing 2.
  • Fig. 7b a variant of an inner contact 20 'is shown, which is latched by means of two latching hooks 22 in the connector housing 2 and is provided for a resilient contact with a conductor on the circuit board 40.
  • the Fig. 7c shows a lockable from the outside on the connector housing 2 ground terminal contact 28. Namely, the stamped and bent part is inserted into a recess 6 of the connector housing 2 and locked by means of a molded-there detent knob 7.
  • This variant has two spring contacts 24 for contacting with a grounding conductor on the circuit board 40.

Description

Die Erfindung betrifft ein System aus Leiterkarten-Steckverbinder und Leiterkarte nach dem Oberbegriff des Anspruchs 1.The invention relates to a system of printed circuit board connector and printed circuit board according to the preamble of claim 1.

Ein derartiges System wird benötigt, um neben einer mechanisch exakten Führung einer Leiterkarte in einem Leiterkarten-Steckverbinder auch eine sichere Masseanbindung zwischen der Leiterkarte und dem Steckver-binder sicherzustellen.Such a system is required in order to ensure not only a mechanically exact guidance of a printed circuit board in a printed circuit board connector but also a secure ground connection between the printed circuit board and the plug-in connector.

Aus dem Stand der Technik sind verschiedene Vorrichtungen bekannt, eine Leiterkarte derartig mit einem Steckverbinder zu kontaktieren, dass zunächst ein Potenzialausgleich beim Steckvorgang erfolgt, bevor die Spannungsversorgung zu der Leiterkarte erfolgt.
So sind an Leiterkarten Verriegelungsmechanismen vorgesehen, die vor einem Herausziehen die Spannungsversorgung deaktivieren, bzw. beim Einschieben mittels eines Mikroschalters die Spannungsversorgung erst nach dem endgültigen Stecken und Verriegeln zuschalten.From the prior art, various devices are known to contact a circuit board in such a way with a connector, that initially a potential equalization during plugging takes place before the power supply to the printed circuit board.
For example, printed circuit boards are provided with locking mechanisms which deactivate the power supply before being pulled out, or switch on the voltage supply only after the final plugging and locking during insertion by means of a microswitch.

Die US 4 776 805 zeigt einen Leiterkarten-Steckverbinder und eine dazugehörige Leiterkarte, wobei der Leiterkarten-Steckverbinder einen Steckschlitz aufweist, in dem elektrische Kontaktelemente für direkt steckbare Leiterkarten angeordnet sind. Mithilfe eines so genannten Andrückelements wird die Leiterkarte gegen einen Massekontakt gedrückt. Die Andrückkraft erhält das Andrückelement von einer Spiralfeder.The US 4,776,805 shows a printed circuit board connector and an associated printed circuit board, wherein the printed circuit board connector has a plug-in slot, are arranged in the electrical contact elements for direct plug-in printed circuit boards. By means of a so-called pressing element, the printed circuit board is pressed against a ground contact. The pressing force receives the pressure element from a coil spring.

Die US 2002/0013075 A1 zeigt eine Leiterkarte, die in einen Leiterkartenstecker einsteckbar ist. Der Leiterkartenstecker weist einen flexiblen Massekontakt auf. Beim Einstecken der Leiterkarte wird der Massekontakt leicht zur Seite gebogen und kontaktiert die dafür vorgesehene Kontaktstelle der Leiterkarte.The US 2002/0013075 A1 shows a printed circuit board which can be inserted into a printed circuit board connector. The printed circuit board connector has a flexible ground contact. When inserting the circuit board, the ground contact is bent slightly to the side and contacted the designated contact point of the circuit board.

Derartige, bekannte Steckverbindungen sind natürlich entsprechend aufwendig in der Konstruktion und Herstellung.Such known connectors are of course correspondingly expensive to design and manufacture.

Der Erfindung liegt daher die Aufgabe zugrunde, ein System der eingangs genannten Art dahingehend auszubilden, dass eine einfache und zuverlässige Masseverbindung zwischen der Leiterkarte und einem Steckverbinder hergestellt wird.The invention is therefore based on the object to form a system of the type mentioned in that a simple and reliable ground connection between the circuit board and a connector is made.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is solved by the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 2 - 6 angegeben.Advantageous embodiments of the invention are specified in claims 2-6.

Die Abschirmung von elektronischen Baugruppen in Rack-Systemen (Schaltschränke) gegen elektromagnetische Störungen erfolgt normalerweise über komplett abgeschirmte Gehäuse. Wobei auch jedes Einschubgehäuse im Rack-System komplett geschirmt ist.
Da bei einem eventuell nötigen Austausch einer Leiterkarte in einem der Einschubgehäuse, selten das ganze System ausgeschaltet werden kann, ist sicherzustellen, das der Austausch problemlos erfolgen kann.
Dazu ist erforderlich, dass unkontrollierte Entladungen statischer elektrischer Energie vermieden werden, in dem beim Steckvorgang zunächst ein Potenzialausgleich der masseführenden Leitungen der neuen Leiterkarte mit dem System erfolgt und erst anschließend eine elektrische Kontaktierung der übrigen Kontakte der Steckverbinder, beim weiteren Einstecken der Leiterkarte.The shielding of electronic assemblies in rack systems (control cabinets) against electromagnetic interference usually takes place via completely shielded enclosures. Whereby also every plug-in housing in the rack system is completely shielded.
Since the replacement of a printed circuit board in one of the plug-in housings may rarely require switching off the entire system, it must be ensured that the replacement can be carried out without problems.
For this purpose, it is necessary that uncontrolled discharges of static electrical energy are avoided, in which during the plugging process first an equipotential bonding of the grounding wires of the new printed circuit board to the system and only then an electrical contact with the other contacts of the connector, further plugging the circuit board.

Dazu weist der erfindungsgemäße Leiterkarten-Steckverbinder mindestens an einem seiner Eckbereiche einen speziell geformten Masseanschlusskontakt auf.
Der Masseanschlusskontakt ist als separates Teil in das Steckverbindergehäuse integriert, mit dem es den Steckschlitz an einem Ende abschließt, an dem die Leiterkarte vorteilhaft beim Einschieben entlanggleitet.
Der Masseanschlusskontakt ist aus einem elektrisch leitenden Material, vorzugsweise aus massivem Metall, in dem nichtleitenden Steckverbindergehäuse verrastet und weist vorteilhaft eine elektrisch leitende Verbindung zu der Leiterplatte auf, auf der das Steckverbindergehäuse montiert ist.
Wobei mehrere Varianten vorgesehen sind, den Kontakt mit einer entsprechenden masseführenden Leiterbahn auf der Leiterplatte zu kontaktieren. Dies kann durch eine federnde Kontaktierung erfolgen, dies kann durch einen Lötstift erfolgen oder durch einen Einpressstift.
Vorgesehen ist auch eine Verbindung von oder durch die Leiterplatte in eine entsprechende Bohrung (eventuell mit einem Gewinde) im Masseanschlusskontakt.
Als eine Variante ist ein Masseanschlusskontakt vorgesehen, das als elektrisch leitendendes Stanzbiegeteil ausgebildet ist, und wiederum eine elektrische Verbindung zu einer masseführenden Leiterbahn auf der Leiterplatte aufweist, auf der der Leiterkarten-Steckverbinder montiert ist.
Für eine optimale Massekontaktierung ist vorgesehen, die in den Leiterkarten-Steckverbinder einzusetzende Leiterkarte mit einer am Kartenrand anzuordnenden, masseführenden Leiterbahn vorzusehen, um eine direkte Kontaktierung mit dem Masseanschlusskontakt zu erzielen.
Wobei die masseführende Leiterbahn an den Seitenrändern der Leiterkarte zumindest im unmittelbaren Steckbereich vorzusehen ist.
Wobei die Massebahn galvanisch aufgebracht sein kann oder als zusätzlich aufzubringende, metallische Fläche ausgeführt sein kann, gewinkelt oder U-förmig, um die Außenkante herumgeführt, auf einer dem Masseanschluss zugewandten Seite.For this purpose, the printed circuit board connector according to the invention on at least one of its corner regions on a specially shaped ground terminal contact.
The ground terminal contact is integrated as a separate part in the connector housing, with which it closes the insertion slot at one end, on which the circuit board slides along during insertion advantageous.
The ground terminal contact is made of an electrically conductive material, preferably made of solid metal, locked in the non-conductive connector housing and advantageously has an electrically conductive connection to the circuit board on which the connector housing is mounted.
Where several variants are provided to contact the contact with a corresponding grounding trace on the circuit board. This can be done by a resilient contact, this can be done by a solder pin or by a press-fit.
Also provided is a connection from or through the circuit board into a corresponding bore (possibly with a thread) in the ground terminal contact.
As a variant, a ground terminal contact is provided, which is designed as an electrically conductive stamped and bent part, and in turn has an electrical connection to a grounding conductor on the circuit board, on which the printed circuit board connector is mounted.
For an optimal ground contact, it is provided to provide the printed circuit board to be used in the printed circuit board connector with a grounding conductor track to be arranged at the edge of the card in order to achieve a direct contact with the ground terminal contact.
Whereby the ground-conducting track is to be provided at the side edges of the printed circuit board at least in the immediate plug-in area.
Wherein the ground track can be galvanically applied or can be designed as an additional applied, metallic surface, angled or U-shaped, guided around the outer edge, on a side facing the ground terminal.

Ein weiterer Vorteil liegt darin, das ein derartig ausgerüsteter Leiterkarten-Steckverbinder höhere Steckzyklen übersteht, da die relativ scharfen Kanten der Leiterkartenränder, in Verbindung mit der je nach Fertigungsqualität rauen Oberfläche der Leiterkartenränder, beim direkten Stecken in den Steckschlitz eine erhöhte Reibung auf die allgemein übliche Kunststoffwand in den beiden Eckbereichen ausüben, so dass diese einem erhöhten Verschleiß ausgesetzt sind.Another advantage is that such a equipped printed circuit board connector survives higher mating cycles, since the relatively sharp edges of the printed circuit board edges, in conjunction with the depending on the production quality rough surface of the printed circuit board edges, when plugged directly into the slot increased friction to the usual Exercise plastic wall in the two corners, so that they are exposed to increased wear.

Ausführungsbeispielembodiment

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:

Fig.1
eine Ansicht mit einem Teilschnitt durch einen Leiterkarten-Steckverbinder in dem ein Masseanschlusskontakt montiert ist,
Fig. 2a
einen metallischen Masseanschlusskontakt mit einem Einpressstift,
Fig. 2b
einen metallischen Masseanschlusskontakt mit einem Lötstift,
Fig. 2c
einen metallischen Masseanschlusskontakt mit einer Bohrung für einen Steckstift,
Fig. 3
eine Ansicht mit einem Schnitt durch einen auf einer Leiterplatte montierten Leiterkarten-Steckverbinder mit einer darin teilweise gesteckten Leiterkarte,
Fig. 4
einen Ausschnitt auf den Steckbereich der Leiterkarte mit einer abgewinkelten Massebahn,
Fig. 5
eine Ansicht mit einem Schnitt durch einen auf einer Leiterplatte montierten Leiterkarten-Steckverbinder mit einer darin gesteckten Leiterkarte und einem als Stanzbiegeteil ausgebildeten Masseanschlusselement,
Fig. 6
eine Teilansicht eines Leiterkarten-Steckverbinders mit einem von außen aufrastbaren Masseanschlusskontakt, und
Fig. 7
die vereinzelten Varianten eines als Stanzbiegeteil geformten Masseanschlusskontaktes.
An embodiment of the invention is illustrated in the drawing and will be explained in more detail below. Show it:
Fig.1
a view with a partial section through a printed circuit board connector in which a ground terminal contact is mounted,
Fig. 2a
a metal ground terminal contact with a press-fit pin,
Fig. 2b
a metal ground terminal contact with a solder pin,
Fig. 2c
a metal ground terminal contact with a hole for a pin,
Fig. 3
a view with a section through a printed circuit board mounted on a printed circuit board connector with a printed circuit board partially inserted therein,
Fig. 4
a cutout on the plug-in area of the printed circuit board with an angled ground trace,
Fig. 5
a view with a section through a printed circuit board mounted on a circuit board connector with a printed circuit board inserted therein and formed as a stamped bent part ground terminal element,
Fig. 6
a partial view of a printed circuit board connector with an externally latched ground terminal contact, and
Fig. 7
the isolated variants of a formed as a stamped bent part ground terminal contact.

In der Fig.1 ist in einem Teilschnitt, ein auf einer Leiterplatte 40 montierter Leiterkartensteckverbinder 1 mit elektrischen Kontaktelementen 8 und einem Masseanschlusskontakt 10 gezeigt.
Der Leiterkartensteckverbinder 1 weist ein Steckverbindergehäuse 2 mit einem Steckschlitz 3 für eine direkte Kontaktierung mit einer Leiterkarte 30 auf.
Weiterhin ist im Steckschlitz 3 auf der dem Masseanschlusskontakt 10 gegenüberliegenden Seite eine S-förmige Andruckfeder 5 eingefügt, mittels der die Leiterkarte 30 sofort beim Einfügen gegen den Masseanschlusskontakt 10 gedrückt 10 wird, ohne dass bereits eine Kontaktierung mit einem elektrischen Kontakt von der Leiterplatte und dem Steckverbinder erfolgt ist.In the Fig.1 is shown in a partial section, a mounted on a printed circuit board 40 PCB connector 1 with electrical contact elements 8 and a ground terminal 10 is shown.
The printed circuit board connector 1 has a connector housing 2 with a plug-in slot 3 for direct contacting with a printed circuit board 30.
Furthermore, an S-shaped pressure spring 5 is inserted in the slot 3 on the opposite side of the ground terminal 10, by means of the printed circuit board 30 immediately when inserted against the ground terminal 10 is pressed 10, without already contacting with an electrical contact from the circuit board and the Connector is done.

Der Masseanschlusskontakt 10 ist in einer ersten Variante in der Fig. 2 dargestellt. Diese zeigt einen massiven metallischen Kontakt, der in Fig. 2a mit einem Einpresskontakt 13, in Fig. 2b mit einem Einlötkontakt 14 und in der Fig. 2c mit einer Bohrung 15 ausgestattet ist.
Die Körperform zeigt eine leicht L-förmige Ausführung mit einer Kuppe 11, die zur Kontaktierung mit der Leiterkarte 30 vorgesehen ist.
Zum Verrasten in dem Steckverbindergehäuse 2 sind im Fußbereich des Masseanschlusskontaktes 10 zwei Rastnasen 12 angeformt.The ground terminal 10 is in a first variant in the Fig. 2 shown. This shows a massive metallic contact in Fig. 2a with a press-fit 13, in Fig. 2b with a Einlötkontakt 14 and in the Fig. 2c equipped with a bore 15.
The body shape shows a slightly L-shaped design with a dome 11, which is provided for contacting the printed circuit board 30.
For latching in the connector housing 2 10 two locking lugs 12 are formed in the foot region of the ground terminal contact.

Eine halbwegs in dem Leiterkartensteckverbinder 1 gesteckte Leiterkarte 30 mit dem Masseanschlusskontakt 10 ist in der Fig. 3 gezeigt.
Hierbei ist erkennbar, dass in dem Eckbereich gegenüber dem Masseanschlusskontakt 10 die Andruckfeder 5 angeordnet ist, die die Leiterkarte 30 gegen den Masseanschlusskontakt 10 drückt.
Wobei der eigentliche Grund der Andruckfeder 5 darin liegt, die bei diesem System sehr eng nebeneinander angeordneten Kontakte passgenau zusammenzuführen - und zwar noch bevor die Kontakte beim Einfügen der Leiterkarte 30 in den Leiterkarten-Steckverbinder 1 gegenseitig kontaktieren. Gleichzeitig ist im Einsteckbereich 31 auf der Leiterkarte 30 eine Massebahn 33 erkennbar, die sich auch auf die Seitenkante der Leiterkarte erstreckt, in dem sie dort galvanisch aufgebracht ist oder als abgewinkeltes Blechteil 34 zusätzlich fixiert ist, wie dies in Fig. 4 gezeigt ist.A half way plugged into the printed circuit board connector 1 printed circuit board 30 to the ground terminal 10 is in the Fig. 3 shown.
It can be seen that in the corner region opposite to the ground terminal contact 10, the pressure spring 5 is arranged, which presses the circuit board 30 against the ground terminal contact 10.
Wherein the actual reason of the pressure spring 5 is to merge accurately in this system very close together arranged contacts - and even before the contacts contact each other when inserting the circuit board 30 in the printed circuit board connector 1. At the same time, in the plug-in region 31 on the printed circuit board 30, a ground trace 33 can be seen, which also extends to the side edge of the printed circuit board, in FIG where it is applied there galvanically or is additionally fixed as an angled sheet metal part 34, as in Fig. 4 is shown.

Die Fig. 5 zeigt einen Leiterkarten-Steckverbinder 1 mit einem Masseanschlusskontakt 20, der als gestanzte und gewinkelte Kontaktschiene ausgeführt ist. Prinzipiell ebenfalls mit einer Kontaktkuppe 21 ausgestattet, für die Kontaktierung mit einer der masseführenden Seitenflächen der Leiterkarte. Seitliche Rasthaken 22 sind für einen sicheren Halt innerhalb des Steckverbindergehäuses vorgesehen.
Der Anschluss zu einer Massebahn auf der Leiterplatte 40 auf der der Leiterkarten-Steckverbinder 1 fixiert ist, erfolgt wie bei dem stiftartigen Masseanschlusskontakt 10 über einen Einpress- oder Lötanschluss 23. Auch kann hierfür ein Federkontakt 24 ähnlich wie in Fig. 6 ausgeführt, vorgesehen sein.The Fig. 5 shows a printed circuit board connector 1 with a ground terminal 20, which is designed as a punched and angled contact rail. In principle, also equipped with a contact tip 21, for contacting with one of the mass-leading side surfaces of the printed circuit board. Lateral locking hooks 22 are provided for a secure hold within the connector housing.
The connection to a ground track on the circuit board 40 on which the printed circuit board connector 1 is fixed takes place, as in the case of the pin-like ground terminal contact 10, via a press-in or solder connection 23. Also, a spring contact 24 can be used for this purpose, as in FIG Fig. 6 executed, be provided.

In der Fig. 6 ist ein Leiterkarten-Steckverbinder gezeigt, bei dem der Masseanschlusskontakt 28 aus einem gestanzten Metallstreifen geformt ist, der der äußeren Gehäuseform angepasst ist und von außen in eine entsprechend vorgesehene Ausnehmung 6 am Steckverbindergehäuse 2 aufgesetzt wird. Dabei ist der Kontakt als unsymmetrisches U ausgeführt, und wird mit dem kürzeren Schenkel an einem der Eckbereiche 4 im Steckschlitzbereich 3 eingeklinkt, so dass er mit der Kuppe 21 einer eingeschobenen Leiterkarte 30 kontaktiert, und wird von außen an einem dazu vorsehenden Rastknopf 7 am Steckverbindergehäuse 2 verrastet.
Der dann zur Leiterplatte 40 weisende Kontaktbereich ist entweder SMDfähig zum Löten oder - wie hier gezeigt - mit federnden Kontakten 24 zum Aufpressen auf eine masseführende Leiterbahn der Leiterplatte 40 ausgestaltet.In the Fig. 6 a printed circuit board connector is shown, in which the ground terminal contact 28 is formed from a stamped metal strip, which is adapted to the outer housing shape and is placed from the outside in a correspondingly provided recess 6 on the connector housing 2. In this case, the contact is designed as asymmetrical U, and is latched to the shorter leg at one of the corner regions 4 in the slot region 3, so that it contacts the tip 21 of an inserted printed circuit board 30, and is externally attached to a locking button 7 provided on the connector housing 2 locked.
The contact area then facing the printed circuit board 40 is either SMD-capable for soldering or-as shown here-designed with resilient contacts 24 for pressing onto a ground-carrying conductor track of the printed circuit board 40.

Die Fig. 7 zeigt mehrere Varianten der gestanzt, gewinkelten Masseanschlusskontakte 20, 20', 28, die in oder an einem der Eckbereiche 4 des Leiterkarten-Steckverbinders 1 zur Kontaktierung mit einer gesteckten Leiterkarte 30 erforderlich sind.The Fig. 7 shows several variants of the punched, angled ground terminal contacts 20, 20 ', 28, which are required in or on one of the corner regions 4 of the printed circuit board connector 1 for contacting with a plugged circuit board 30.

So zeigt Fig. 7a den gestanzt, gewinkelten Masseanschlusskontakt 20, der für den Inneneinsatz im Steckverbindergehäuse 2 vorgesehen ist. Mit einen etwas breitere Blechabschnitt aus dem ein Lötstift 23 abgewinkelt ist, sowie einem schmaleren Blechabschnitt, der eine Kuppe 21 zum Kontaktieren mit der Leiterkarte 30 aufweist.
In Fig. 7b ist eine Variante eines Innenkontaktes 20' gezeigt, der mittels zweier Rasthaken 22 im Steckverbindergehäuse 2 verrastbar ist und für eine federnde Kontaktierung mit einer Leiterbahn auf der Leiterplatte 40 vorgesehen ist.
Die Fig. 7c zeigt einen von außen auf das Steckverbindergehäuse 2 aufrastbaren Masseanschlusskontakt 28. Und zwar wird das Stanzbiegeteil in eine Ausnehmung 6 des Steckverbindergehäuses 2 eingesetzt und mittels eines dort angeformten Rastknopfes 7 verrastet. Diese Variante weist zwei Federkontakten 24 zur Kontaktierung mit einer masseführenden Leiterbahn auf der Leiterplatte 40 auf.So shows Fig. 7a the punched, angled ground terminal contact 20, which is provided for the inner insert in the connector housing 2. With a slightly wider sheet metal portion from which a solder pin 23 is angled, and a narrower sheet metal portion having a dome 21 for contacting with the circuit board 30.
In Fig. 7b a variant of an inner contact 20 'is shown, which is latched by means of two latching hooks 22 in the connector housing 2 and is provided for a resilient contact with a conductor on the circuit board 40.
The Fig. 7c shows a lockable from the outside on the connector housing 2 ground terminal contact 28. Namely, the stamped and bent part is inserted into a recess 6 of the connector housing 2 and locked by means of a molded-there detent knob 7. This variant has two spring contacts 24 for contacting with a grounding conductor on the circuit board 40.

Claims (6)

  1. A system made up of a circuit card connector (1) and a circuit card (30), the circuit card connector (1) having an insertion slot (3) in which electrical contact elements (8) for directly insertable circuit cards (30) are arranged, an electrically conducting ground connection contact (10, 20, 28) being arranged within the insertion slot (3) in at least one of the two corner portions (4) of the connector (1),
    the circuit card (30) inserted in the insertion slot (3) including, within an insertion portion (31) of the circuit card (30), a ground path (33, 34) on at least one lateral edge (32) facing the ground connection contact (10, 20, 28), and
    the ground path (33, 34) sliding along and contacting the ground connection contact (10, 20, 28) during insertion of the circuit card (30) into the insertion slot (3), characterized in that
    the circuit card (30) is pressed against the ground connection contact (10, 20, 28) immediately upon insertion by means of exclusively an S-shaped contact pressure spring (5) arranged in the insertion slot (3) on the side opposite the ground connection contact (10, 20, 28), before the contacts of the circuit board (30) and of the circuit card connector (1) contact each other.
  2. The system made up of a circuit card connector (1) and a circuit card (30) according to claim 1, characterized in that
    the ground connection contact (10) is of a solid, pin-shaped configuration and has an electrically conducting ground connection to the circuit board (40) on which the circuit card connector (1) is fixed.
  3. The system made up of a circuit card connector (1) and a circuit card (30) according to claim 1, characterized in that
    the contact is formed as an embossed ground connection contact (20, 28).
  4. The system made up of a circuit card connector (1) and a circuit card (30) according to claim 1, characterized in that
    the ground connection contact (10, 20, 28) contacts a ground conductor path provided therefor on the circuit board (40) by means of a press-fit pin (13, 23) or by means of a solder pin (14, 23) or by means of a spring contact (24).
  5. The system made up of a circuit card connector (1) and a circuit card (30) according to claim 1, characterized in that
    at least on one of the lateral edges (32) within the insertion portion (31) of the circuit card (30), a ground path (34) is provided which is shaped from a contact element engaging around the lateral edge (32).
  6. The system made up of a circuit card connector (1) and a circuit card (30) according to claim 1, characterized in that
    a structure applied by electroplating is formed as the ground path (33) on at least one of the lateral edges (32) in the insertion portion (31) of the circuit card (30).
EP09000538.0A 2008-02-16 2009-01-16 Hardened conductor-connector with mass connection Active EP2091109B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008002149U DE202008002149U1 (en) 2008-02-16 2008-02-16 Printed circuit board connector with ground connection

Publications (3)

Publication Number Publication Date
EP2091109A2 EP2091109A2 (en) 2009-08-19
EP2091109A3 EP2091109A3 (en) 2012-11-07
EP2091109B1 true EP2091109B1 (en) 2014-05-21

Family

ID=39339471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000538.0A Active EP2091109B1 (en) 2008-02-16 2009-01-16 Hardened conductor-connector with mass connection

Country Status (4)

Country Link
US (1) US7677906B2 (en)
EP (1) EP2091109B1 (en)
CN (1) CN101510637B (en)
DE (1) DE202008002149U1 (en)

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CN101958475B (en) * 2010-03-24 2013-01-16 深圳市德仓科技有限公司 Card edge connector
DE202010004466U1 (en) 2010-04-01 2010-07-29 Harting Electric Gmbh & Co. Kg Device for mechanically and electrically connecting a printed circuit board in a housing
DE102012111334A1 (en) * 2012-11-23 2014-05-28 Conti Temic Microelectronic Gmbh Equipotential bonding in a control unit for a motor vehicle
DE102014109282B3 (en) * 2014-07-02 2016-01-07 Airbus Operations Gmbh Metallic primary structural element for equipotential bonding in an aircraft
US9912083B2 (en) * 2015-07-21 2018-03-06 Sentinel Connector Systems, Inc. High speed plug

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DE102005061166A1 (en) * 2005-12-21 2007-07-05 Harting Electronics Gmbh & Co. Kg Device for precise contact guidance with printed circuit board connectors

Also Published As

Publication number Publication date
EP2091109A3 (en) 2012-11-07
US20090209114A1 (en) 2009-08-20
CN101510637A (en) 2009-08-19
DE202008002149U1 (en) 2008-04-30
US7677906B2 (en) 2010-03-16
EP2091109A2 (en) 2009-08-19
CN101510637B (en) 2013-12-25

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