EP3743962B1 - Printed-circuit board connector for high-current transmission - Google Patents

Printed-circuit board connector for high-current transmission Download PDF

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Publication number
EP3743962B1
EP3743962B1 EP19701963.1A EP19701963A EP3743962B1 EP 3743962 B1 EP3743962 B1 EP 3743962B1 EP 19701963 A EP19701963 A EP 19701963A EP 3743962 B1 EP3743962 B1 EP 3743962B1
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EP
European Patent Office
Prior art keywords
circuit board
printed circuit
contact
plug
region
Prior art date
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Application number
EP19701963.1A
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German (de)
French (fr)
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EP3743962A1 (en
Inventor
Wilhelm KLIEVER
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.)
Harting Electric Stiftung and Co KG
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Harting Electric GmbH and Co KG
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Publication of EP3743962A1 publication Critical patent/EP3743962A1/en
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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
    • 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
    • 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
    • H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H01R12/523—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures by an interconnection through aligned holes in the boards or multilayer board
    • 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
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • 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
    • H01R12/7088—Arrangements for power supply
    • 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
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H01R12/735—Printed circuits including an angle between each other
    • H01R12/737—Printed circuits being substantially perpendicular to each other

Definitions

  • the slot has a constant width, which corresponds to the thickness of the second printed circuit board.
  • the at least one pin contact has a collar running at right angles to the slot between its connection area and its plug-in area in order to reinforce its attachment and for alignment on the first printed circuit board.
  • connection area of the pin contact can be designed as a solder connection.
  • the pin contact is then a soldering contact.
  • the second printed circuit board inserted into the slot is then additionally soldered with its second contact area to the plug-in area of the pin contact.

Description

Die Erfindung geht aus von einer Anordnung nach der Gattung des unabhängigen Anspruchs 1.The invention is based on an arrangement according to the generic type of independent claim 1.

Derartige Leiterkartenverbinder werden benötigt, um zwei rechtwinklig zueinander angeordnete Leiterkarten elektrisch mit einander zu verbinden und dabei auch die Übertragung hoher Stromstärken > 10 Ampere zu ermöglichen. Insbesondere kann dies beim Bau elektrischer Geräte von Bedeutung sein, wenn z. B. eine erste Leiterkarte rechtwinklig zu einer Frontfläche des Gehäuses geführt ist, um über eine Starkstrom-Steckverbindung mit dieser Frontfläche verbunden zu werden.Circuit card connectors of this type are required in order to electrically connect two circuit cards arranged at right angles to one another and also to enable the transmission of high current intensities >10 amperes. In particular, this can be important in the construction of electrical equipment if z. B. a first printed circuit board is guided at right angles to a front surface of the housing in order to be connected to this front surface via a high-current plug-in connection.

Stand der TechnikState of the art

Im Stand der Technik sind Leiterkarten und Leiterkartensteckverbinder bekannt. Grundsätzlich ist es aufgrund der geometrischen Gegebenheiten problematisch, elektrische Verbinder für hohe Stromstärken > 10 Ampere zwischen zwei Leiterkarten einzusetzen.Circuit cards and circuit card connectors are known in the prior art. Due to the geometric conditions, it is fundamentally problematic to use electrical connectors for high currents > 10 amperes between two printed circuit boards.

Die Druckschrift EP 0542652 A1 offenbart einen Steckkontakt für in der Mikroelektronik verwendete Hybrid-Schaltkreise zur Gewährleistung einer Verbindung zwischen einem Substrat und einem Träger. Der Kontakt hat einen Teil, der am Substrat befestigt werden soll, und einen anderen Teil, der in das Loch des Trägers eingeführt werden soll. Der Teil, der in das Loch des Trägers eingeführt werden soll, wird einer Behandlung unterzogen, die ihm einen profilierten offenen Querschnitt verleihen kann, um mittels Elastizität dem Querschnitt zu entsprechen.The pamphlet EP 0542652 A1 discloses a plug contact for hybrid circuits used in microelectronics to ensure a connection between a substrate and a carrier. The contact has a part to be attached to the substrate and another part to be inserted into the hole of the carrier. The part to be inserted in the hole of the support is subjected to a treatment that can give it a profiled open cross-section to conform to the cross-section by means of elasticity.

Die Druckschrift US 4 250 536 A offenbart eine Anordnung zum Verbinden eines Paares von Hybridplatinen, die mittels Stiften in aufrechter Position auf einer horizontal verlaufenden Basisplatine in eng beieinanderliegender, im Wesentlichen paralleler Beziehung montiert sind. Dabei ist jede der Hybridplatinen mit einer Reihe von Kontaktanschlüssen versehen ist, die sich entlang ihrer Oberkante zusammen mit einer sekundären Leiterplatte mit einer Reihe von nach unten gerichteten, federartigen Kontaktelementen erstrecken. Diese sind entlang jeder Seitenkante angebracht, wobei die Kontaktelemente so beabstandet sind, dass sie den Kontaktanschlüssen auf den darunterliegenden Hybridplatinen in Eingriff stehen.The pamphlet U.S. 4,250,536A discloses an arrangement for interconnecting a pair of hybrid boards mounted by pins in an upright position on a horizontally extending base board in closely spaced, substantially parallel relationship. Each of the hybrid boards is provided with a row of contact terminals extending along its top edge along with a secondary circuit board having a row of downwardly directed spring-like contact elements. These are mounted along each side edge, with the contact elements spaced to engage the contact terminals on the underlying hybrid boards.

Die Druckschrift DE 20 2013 010 545 U1 offenbart ein elektrisches Kontaktelement, aufweisend mindestens drei Zonen, die aufeinanderfolgend entlang einer Längsachse angeordnet sind, wobei die erste Zone eine Draht- und/oder Kabelbefestigungszone ist, die auf die erste Zone folgende zweite Zone eine Einpresszone ist und die auf die zweite Zone folgende dritte Zone eine Einpress- und/oder Lötzone ist.The pamphlet DE 20 2013 010 545 U1 discloses an electrical contact element comprising at least three zones sequentially arranged along a longitudinal axis, the first zone being a wire and/or cable attachment zone, the second zone following the first zone being a press-fit zone, and the third zone following the second zone Zone is a press-in and/or soldering zone.

Die Druckschrift US 4801916 A offenbart ein steckbares Schaltungsmodul mit einer Wärmeableitung. Dessen Schaltkreis kann zur Stromversorgung, beispielsweise im Telekommunikationsbereich dienen, wobei eine große Zahl solcher Schaltmodule, beispielsweise 100.000 Module nah beieinander in Schränken angeordnet sind, wobei die Kühlung bei hohen Schaltraten besonders kritisch ist.The pamphlet US4801916A discloses a pluggable circuit module with a heat sink. Its switching circuit can be used for power supply, for example in the telecommunications sector, with a large number of such switching modules, for example 100,000 modules, being arranged close together in cabinets, cooling being particularly critical at high switching rates.

Nachteilig im Stand der Technik ist insbesondere, dass keine preisgünstige und zuverlässige Starkstromanbindung zwischen zwei rechtwinklig zueinander angeordneten Leiterkarten existiert.A particular disadvantage of the prior art is that there is no inexpensive and reliable high-voltage connection between two printed circuit boards arranged at right angles to one another.

Aufgabenstellungtask

Die Aufgabe der Erfindung besteht darin, einen Leiterkartenverbinder als preisgünstige und zuverlässige Starkstromanbindung zwischen zwei Leiterkarten anzugeben. Als Starkstrom werden dabei hohe Stromstärken > 10 Ampere angesehen.The object of the invention is to specify a printed circuit board connector as an inexpensive and reliable high-voltage connection between two printed circuit boards. High currents > 10 amperes are considered heavy current.

Diese Aufgabe wird mit den Merkmalen des kennzeichnenden Teils des unabhängigen Anspruchs 1 gelöst.This object is solved with the features of the characterizing part of independent claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous refinements of the invention are specified in the dependent claims.

Ein Leiterkartenverbinder ist zur Übertragung elektrischer Energie mit hohen Stromstärken von mehr als 10 Ampere, insbesondere mehr als 15 Ampere, also beispielsweise von mehr als 20 Ampere vorgesehen. Der Leiterkartenverbinder weist zumindest einen metallischen, einstückigen Stiftkontakt auf. Dabei kann ein einzelner solcher Stiftkontakt mehr als 10 Ampere, insbesondere mehr als 15 Ampere, also beispielsweise von mehr als 20 Ampere übertragen. Der Stiftkontakt besitzt an einem ersten Ende einen Anschlussbereich, mit dem er mit einem ersten Kontaktbereich einer ersten Leiterkarte verlötbar und/oder in die erste Leiterkarte einpressbar ist. Gegenüberliegend besitzt der Stiftkontakt an einem zweiten Ende einen Steckbereich mit einem in Richtung des ersten Endes verlaufenden Schlitz zum mechanischen Fixieren und zur elektrischen Kontaktierung mindestens eines am Rand einer zweiten Leiterkarte angeordneten zweiten Kontaktbereichs.A printed circuit board connector is provided for the transmission of electrical energy with high currents of more than 10 amperes, in particular more than 15 amperes, for example more than 20 amperes. The circuit card connector has at least one metallic, one-piece pin contact. A single pin contact of this type can transfer more than 10 amperes, in particular more than 15 amperes, for example more than 20 amperes. At a first end, the pin contact has a connection area with which it can be soldered to a first contact area of a first circuit board and/or can be pressed into the first circuit board. On the opposite side, the pin contact has a plug-in area at a second end with a slot running in the direction of the first end for mechanical fixing and for electrical contacting of at least one second contact area arranged on the edge of a second printed circuit board.

Dies ist besonders vorteilhaft für die automatisierte Herstellung, da die zweite Leiterkarte in den Schlitz des mindestens einen Stiftkontakts gesteckt und daran verlötet werden kann.This is particularly advantageous for automated production, since the second printed circuit board can be inserted into the slot of the at least one pin contact and soldered to it.

Der Schlitz besitzt dazu eine konstante Breite, welche der Stärke der zweiten Leiterkarte entspricht.For this purpose, the slot has a constant width, which corresponds to the thickness of the second printed circuit board.

In einer bevorzugten Ausgestaltung kann der Stiftkontakt eine Symmetrieachse oder eine Symmetrieebene besitzen, in deren Richtung der Schlitz verläuft. Dies dient dazu, das Verhältnis zwischen Materialaufwand und Stabilität zu optimieren.In a preferred embodiment, the pin contact can have an axis of symmetry or a plane of symmetry, in the direction of which the slot runs. This serves to optimize the ratio between material costs and stability.

Der Stiftkontakt kann derart mit der ersten Leiterkarte verlötbar oder darin einpressbar sein, dass der Schlitz rechtwinklig zur ersten Leiterkarte verläuft, so dass die in den Schlitz eingeführte zweite Leiterkarte dadurch automatisch rechtwinklig zur ersten Leiterkarte ausgerichtet und gleichzeitig über den Stiftkontakt elektrisch mit dieser kontaktierbar ist. Dies ist für den Bau eines elektrischen Geräts mit einem quaderförmigen Gehäuse besonders vorteilhaft, weil so die Leiterplatten parallel zu den jeweiligen Gehäusewänden geführt sein können.The pin contact can be soldered to the first printed circuit board or pressed into it in such a way that the slot runs at right angles to the first printed circuit board, so that the second printed circuit board inserted into the slot is automatically aligned at right angles to the first printed circuit board and at the same time can be electrically contacted with it via the pin contact. This is particularly advantageous for the construction of an electrical device with a cuboid housing, because the printed circuit boards can be guided parallel to the respective housing walls.

In einer vorteilhaften Ausgestaltung weist der mindestens eine Stiftkontakt zwischen seinem Anschlussbereich und seinem Steckbereich einen rechtwinklig zum Schlitz verlaufenden Kragen zur Verstärkung seiner Befestigung und zur Ausrichtung auf der ersten Leiterkarte auf.In an advantageous embodiment, the at least one pin contact has a collar running at right angles to the slot between its connection area and its plug-in area in order to reinforce its attachment and for alignment on the first printed circuit board.

Der Anschlussbereich des Stiftkontakts kann als Lötanschluss ausgeführt sein. Dann handelt es sich bei dem Stiftkontakt um einen Lötkontakt. In der Regel wird die in den Schlitz gesteckte zweite Leiterkarte mit ihrem zweiten Kontaktbereich dann auch mit dem Steckbereich des Stiftkontakts zusätzlich verlötet.The connection area of the pin contact can be designed as a solder connection. The pin contact is then a soldering contact. As a rule, the second printed circuit board inserted into the slot is then additionally soldered with its second contact area to the plug-in area of the pin contact.

In einer anderen Ausgestaltung kann der Anschlussbereich des Stiftkontakts in Press-In-Technik ausgeführt sein. Dann handelt es sich bei dem Stiftkontakt um einen Press-In-Kontakt, der in seinem Steckbereich senkrecht zur Steckrichtung eine entsprechende Durchgangsöffnung besitzt. In der Regel wird dann die zweite Leiterkarte mit ihrem zweiten Kontakt lediglich in den Schlitz des Stiftkontakts gesteckt, um den gewünschten elektrischen Kontakt zur ersten Leiterkarte herzustellen.In another configuration, the connection area of the pin contact can be designed using press-in technology. The pin contact is then a press-in contact, which has a corresponding through-opening in its plug-in area perpendicular to the plug-in direction. As a rule, the second printed circuit board is then simply inserted with its second contact into the slot of the pin contact in order to establish the desired electrical contact with the first printed circuit board.

Selbstverständlich sind auch Kombinationen möglich, bei denen z. B. ein Press-In-Kontakt zusätzlich an der ersten Leiterkarte verlötet wird oder bei der ein Lötkontakt auch in eine Kontaktbohrung der ersten Leiterkarte gesteckt und daran verlötet wird. Weiterhin kann auch ein Lötkontakt mit einer lediglich in den Schlitz eingesteckten (und nicht daran verlöteten) zweiten Leiterkarte kombiniert werden. Die letztere Variante kann beispielsweise dazu dienen, eine flexible Austauschbarkeit der zweiten Leiterkarte gegen eine andere Leiterkarte zu ermöglichen.Of course, combinations are possible in which z. B. a press-in contact is additionally soldered to the first printed circuit board or in which a soldered contact is also inserted into a contact hole in the first printed circuit board and soldered to it. Furthermore, a solder contact with be combined with a second printed circuit board that is merely plugged into the slot (and not soldered to it). The latter variant can be used, for example, to enable the second printed circuit board to be flexibly exchanged for another printed circuit board.

Bei dem Stiftkontakt handelt es sich um ein Drehteil, d. h., er wird durch sogenanntes "Drehen" hergestellt. Dies hat den Vorteil, dass der Stiftkontakt massiv, stabil und relativ kostengünstig herstellbar ist.The pin contact is a turned part, i. That is, it is made by so-called "turning". This has the advantage that the pin contact is solid, stable and relatively inexpensive to produce.

Eine erfindungsgemäße Anordnung weist zumindest Folgendes auf:

  • die erste Leiterkarte, die zumindest den ersten elektrischen Kontaktbereich besitzt;
  • die zweite Leiterkarte, die zumindest den zweiten und einen dritten elektrischen Kontaktbereich besitzt, welche über eine Leiterbahn der zweiten Leiterkarte elektrisch leitend miteinander verbunden sind;
  • den Leiterkartenverbinder zum elektrischen Verbinden des ersten Kontaktbereichs mit dem zweiten Kontaktbereich.
An arrangement according to the invention has at least the following:
  • the first circuit board having at least the first electrical contact area;
  • the second circuit board, which has at least the second and a third electrical contact area, which are electrically conductively connected to one another via a conductor track of the second circuit board;
  • the circuit board connector for electrically connecting the first contact area to the second contact area.

Dabei kann die zweite Leiterkarte in den Schlitz des Stiftkontakts gesteckt und an ihrem zweiten Kontaktbereich damit verlötet sein. Dies hat den Vorteil, dass die zweite Leiterkarte mit nur geringem Aufwand, insbesondere automatisiert, an dem Stiftkontakt fixierbar und damit kontaktierbar ist. Dadurch kann die zweite Leiterkarte an der ersten Leiterkarte mechanisch fixiert sein und gleichzeitig mindestens eine elektrisch leitende Verbindung mit der ersten Leiterkarte besitzen. Weiterhin kann die Anordnung ein insbesondere quaderförmiges Gerätegehäuse besitzen, in welchem die beiden Leiterkarten angeordnet sind. Dabei kann die erste Leiterkarte rechtwinklig zu einer Frontseite des Gerätegehäuses ausgerichtet sein und die zweite Leiterkarte kann parallel zu der Frontseite verlaufen. Dies hat den Vorteil, dass der im Gerät vorhandene Bauraum besonders gut ausgenutzt wird.The second printed circuit board can be plugged into the slot of the pin contact and soldered to it at its second contact area. This has the advantage that the second printed circuit board can be fixed to the pin contact and thus contacted with little effort, in particular in an automated manner. As a result, the second printed circuit board can be mechanically fixed to the first printed circuit board and at the same time have at least one electrically conductive connection to the first printed circuit board. Furthermore, the arrangement can have a device housing, in particular cuboid, in which the two printed circuit boards are arranged. In this case, the first printed circuit board can be aligned at right angles to a front side of the device housing and the second printed circuit board can run parallel to the front side. This has the advantage that the space available in the device is used particularly well.

Die Frontseite des Gerätegehäuses kann eine Durchgangsöffnung sowie ein daran angebrachtes Steckverbindergehäuse besitzen. Dies ist vorteilhaft, um die Leiterkarten mit elektrischer Energie zu versorgen.The front of the device housing may have a through hole and a connector housing attached thereto. This is advantageous for supplying the printed circuit boards with electrical energy.

An der zweiten Leiterkarte kann dazu ein Kontaktträger mit mindestens einem darin befindlichen Steckkontakt befestigt sein.To this end, a contact carrier with at least one plug-in contact located therein can be attached to the second printed circuit board.

Der Steckkontakt kann einerseits an dem dritten Kontaktbereich der zweiten Leiterkarte elektrisch leitend fixiert sein und steckseitig in das Steckverbindergehäuse hineinragen. Dies hat den Vorteil, dass elektrische Energie in das Gerät hineinführbar und geräteintern von der zweiten Leiterkarte an die erste Leiterkarte übertragbar ist.On the one hand, the plug-in contact can be fixed in an electrically conductive manner on the third contact area of the second printed circuit board and can protrude into the plug-in connector housing on the plug-in side. This has the advantage that electrical energy can be fed into the device and can be transmitted inside the device from the second printed circuit board to the first printed circuit board.

Vorteilhafterweise kann der Steckkontakt steckseitig in das Steckverbindergehäuse hineinragen. Dies dient dazu, ein Stecken mit einem externen Gegenstecker zu ermöglichen. In der Regel wird es sich bei dem externen Gegenstecker um einen Buchsenstecker mit Buchsenkontakten handeln, da stromführende Teile im Bereich der Starkstromübertragung aus Sicherheitsgründen nicht frei zugänglich sein dürfen. Aus diesem Grund handelt es sich bei den damit korrespondierenden Steckkontakten, die mit der zweiten Leiterkarte verbunden sind, bevorzugt um korrespondierende Pinkontakte.Advantageously, the plug-in contact can protrude into the connector housing on the plug-in side. This serves to enable plugging with an external mating connector. As a rule, the external mating connector will be a socket connector with socket contacts, since live parts in the area of heavy current transmission must not be freely accessible for safety reasons. For this reason, the corresponding plug contacts, which are connected to the second printed circuit board, are preferably corresponding pin contacts.

Insbesondere kann es sich bei dem Steckkontakt um einen Starkstromkontakt handeln, der zur Übertragung von Stromstärken von mindestens 10 Ampere pro Kontakt geeignet ist. Dies hat den Vorteil, dass die zweite Leiterkarte und darüber auch die erste Leiterkarte mit entsprechend hohen Stromstärken versorgt werden kann. Insbesondere kann die erste Leiterkarte mit diesen hohen Stromstärken versorgt werden, obwohl sie senkrecht zur Frontfläche verläuft, in welcher das Steckverbindergehäuse angeordnet ist.In particular, the plug contact can be a high-current contact that is used to transfer currents from at least 10 amperes per contact is suitable. This has the advantage that the second printed circuit board and also the first printed circuit board can be supplied with correspondingly high current intensities. In particular, the first printed circuit board can be supplied with these high current levels, even though it runs perpendicular to the front surface in which the connector housing is arranged.

In einer bevorzugten Ausgestaltung kann die zweite Leiterkarte zusätzlich zu der besagten Fixierung durch den mindestens einen Kontaktstift über ein Abstützelement an der ersten Leiterkarte und/oder mittels einer Verschraubung an der Frontseite des Gerätegehäuses zusätzlich befestigt sein, um den Steckkräften des Steckkontakts standzuhalten und insbesondere die entsprechenden Hebelkräfte von den Stiftkontakten fern zu halten.In a preferred embodiment, the second printed circuit board can be additionally fastened to the said fixation by the at least one contact pin via a support element on the first printed circuit board and/or by means of a screw connection on the front side of the device housing in order to withstand the insertion forces of the plug contact and in particular the corresponding ones Keep leverage away from the pin contacts.

Ausführungsbeispielexample

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher erläutert. Es zeigen:

Fig. 1a - c
Den Stiftkontakt als Lötkontakt ohne und mit einem Kragen;
Fig. 1d - f
den Stiftkontakt in Press-In-Technik
Fig. 2a - f
eine erste Anordnung aus einer ersten und einer zweiten Leiterkarte und einem Leiterkartenverbinder mit Lötanschlüssen;
Fig. 3a - c
eine zweite Anordnung aus einer ersten und einer zweiten Leiterkarte und einem Leiterkartenverbinder in Press-In-Technik;
Fig. 4a, b
die erste Anordnung mit einem Abstützelement;
Fig. 4c
die zweite Leiterkarte mit Durchgangsbohrungen zur Befestigung an einer Frontseite eines Gerätegehäuses.
An embodiment of the invention is shown in the drawings and is explained in more detail below. Show it:
Fig. 1a - c
The pin contact as a solder contact with and without a collar;
Fig. 1d - f
the pin contact in press-in technology
Fig. 2a - f
a first assembly of first and second circuit boards and a circuit board connector with solder terminals;
Fig. 3a - c
a second assembly of first and second circuit boards and a press-in circuit board connector;
Fig. 4a, b
the first arrangement with a support element;
Figure 4c
the second circuit board with through-holes for attachment to a front side of a device housing.

Die Figuren enthalten teilweise vereinfachte, schematische Darstellungen. Zum Teil werden für gleiche, aber gegebenenfalls nicht identische Elemente identische Bezugszeichen verwendet. Verschiedene Ansichten gleicher Elemente könnten unterschiedlich skaliert sein.The figures contain partially simplified, schematic representations. In some cases, identical reference symbols are used for the same but possibly not identical elements. Different views of the same elements could be scaled differently.

Die Fig. 1a zeigt einen Stiftkontakt 1, der als Lötkontakt ausgeführt ist. Dieser Stiftkontakt 1 besitzt eine zylindrische Grundform. An einem ersten Ende besitzt der Stiftkontakt einen Anschlussbereich 12, der an einem ersten Kontaktbereich 211 einer ersten Leiterkarte 21 verlötbar ist.the Fig. 1a shows a pin contact 1, which is designed as a soldering contact. This pin contact 1 has a cylindrical basic shape. At a first end, the pin contact has a connection area 12 which can be soldered to a first contact area 211 of a first printed circuit board 21 .

An einem zweiten Ende, das dem ersten Ende gegenüberliegt, besitzt der Stiftkontakt 1 einen Steckbereich 11. Im Steckbereich 11 besitzt der Stiftkontakt 1 einen Schlitz 111. Dieser Schlitz 111 ist zur form- und kraftschlüssigen Aufnahme eines zweiten Kontaktbereichs 221 einer zweiten Leiterkarte 22 geeignet, die in den Figuren 2a und 2b gezeigt ist.The pin contact 1 has a plug-in area 11 at a second end, which is opposite the first end. the in the Figures 2a and 2b is shown.

Die Fig. 1b und 1c zeigen einen vergleichbaren Stiftkontakt 1', der sich von dem vorangegangenen Stiftkontakt 1 lediglich dadurch unterscheidet, dass er zusätzlich einen zwischen seinem Steckbereich 11 und seinem Anschlussbereich 12 angeordneten umlaufenden Kragen 13 besitzt. Dieser Kragen 13 dient einer zusätzlichen Abstützung und Stabilisierung des eingelöteten Stiftkontakts 1' auf der ersten Leiterkarte 21. Dabei ist der Anschlussbereich 12 des Stiftkontakts 1 durch eine Kontaktbohrung 210 des ersten Kontaktbereichs 211 der ersten Leiterkarte 21 gesteckt. Dies ist zur Verlötung zwar nicht zwingend notwendig, sogt aber im vorliegenden Fall für ein höheres Maß an Stabilität.the Figures 1b and 1c show a comparable pin contact 1 ′, which differs from the previous pin contact 1 only in that it additionally has a peripheral collar 13 arranged between its plug-in area 11 and its connection area 12 . This collar 13 provides additional support and stabilization for the soldered pin contact 1' on the first circuit board 21. Although this is not absolutely necessary for soldering, in the present case it provides a higher degree of stability.

Die Fig. 1d - f zeigen einen weiteren Stiftkontakt 1" in einer zweiten Ausführung, nämlich als Press-in-Kontakt. Dieser weitere Stiftkontakt 1 " ist in seiner Grundform im Wesentlichen quaderförmig ausgeführt. Sein Anschlussbereich ist zum ersten Ende hin spitz zulaufend und besitzt eine Durchgangsöffnung 120. Somit ist er in Press-In-Technik ausgeführt und kann mit der Kontaktbohrung 210 der ersten Leiterkarte 21 elektrisch kontaktieren, ohne dass dazu ein Lötprozess notwendig ist. Der Anschlussbereich 1 des Weiteren Stiftkontakts 1" besitzt ebenfalls den besagten Schlitz 111 zur Aufnahme des zweiten Kontaktbereichs 221 der zweiten Leiterkarte 22 und unterschiedet sich von dem der vorgenannten Stiftkontakte 1,1' lediglich durch die besagte quaderförmige Grundform. Die gezeigten Stiftkontakte sind einstückig ausgeführt und bestehen aus Metall.the Fig. 1d - f show a further pin contact 1" in a second embodiment, namely as a press-in contact. This further pin contact 1" is essentially cuboid in its basic form. Its connection area tapers to a point towards the first end and has a through opening 120. It is therefore designed using press-in technology and can make electrical contact with the contact hole 210 of the first printed circuit board 21 without a soldering process being necessary for this purpose. The connection area 1 of the further pin contact 1" also has said slot 111 for accommodating the second contact area 221 of the second printed circuit board 22 and differs from that of the aforementioned pin contacts 1,1' only in the said cuboid basic shape. The pin contacts shown are made in one piece and are made of metal.

Wie bereits angedeutet zeigen die Fig. 2a und 2b die erste Leiterkarte in einer Draufsicht und einer Schrägansicht. Dabei sind keine Leiterbahnen gezeigt, obwohl diese selbstverständlich existieren können. Es sind aber die ersten Kontaktbereiche 211 sowie die dazugehörigen Kontaktbohrungen 210 gut sichtbar.As already indicated, the Figures 2a and 2b the first circuit board in a plan view and an oblique view. No conductor tracks are shown, although they can of course exist. However, the first contact areas 211 and the associated contact bores 210 are clearly visible.

Die Fig. 2c zeigt die zweite Leiterkarte 22 in einer leichten Schrägansicht, wobei sie mit ihren zweiten Kontaktbereichen 221 bereits in die Schlitze 111 der Steckbereiche 11 der Stiftkontakte 1 eingeführt ist. Optional können diese Kontaktbereiche an den Steckbereichen zusätzlich verlötet werden.the Figure 2c shows the second printed circuit board 22 in a slightly oblique view, with its second contact areas 221 already being inserted into the slots 111 of the plug-in areas 11 of the pin contacts 1 . Optionally, these contact areas can also be soldered to the plug-in areas.

Die Fig. 2d - f zeigen eine Anordnung, aufweisend die erste Leiterkarte 21, die zweite Leiterkarte 22 und Stiftkontakte 1 im zusammengesteckten und verlöteten Zustand. Es ist leicht ersichtlich, dass die Stiftkontakte 1 anschlussseitig durch die Kontaktbohrungen 210 der ersten Leiterkarte 21 geführt sind. Zudem sind die Anschlussbereiche 12 der Stiftkontakte 1 an den ersten Kontaktbereichen 211 der ersten Leiterkarte 21 verlötet. Die zweite Leiterkarte 22 ist mit ihren zweiten Kontaktbereichen 211 in die Schlitze 111 der Steckbereiche 11 der Stiftkontakte 1 gesteckt. Dadurch kann sie jederzeit mit nur geringem Aufwand gegen eine andere zweite, möglicherweise etwas anders bestückte, Leiterkarte ausgetauscht werden. Diese konkrete Bestückung ist jedoch für das Verständnis der vorliegenden Erfindung nicht wesentlich und wird daher nicht gezeigt.the Fig. 2d - f show an arrangement having the first printed circuit board 21, the second printed circuit board 22 and pin contacts 1 in the assembled and soldered state. It is easy to see that the pin contacts 1 are guided through the contact bores 210 of the first printed circuit board 21 on the connection side. In addition, the connection areas 12 of the pin contacts 1 are soldered to the first contact areas 211 of the first printed circuit board 21 . the second printed circuit board 22 is inserted with its second contact areas 211 into slots 111 of plug-in areas 11 of pin contacts 1 . As a result, it can be exchanged at any time with little effort for another, second, possibly differently equipped circuit board. However, this specific assembly is not essential for understanding the present invention and is therefore not shown.

Es ist weiterhin leicht erkennbar, dass die beiden Leiterkarten 21, 22 durch die Stiftkontakte 1 senkrecht aufeinander stehen.It is also easy to see that the two printed circuit boards 21, 22 are perpendicular to each other through the pin contacts 1.

Außerdem besitzt die zweite Leiterkarte 22 Steckkontaktbohrungen 220, die mit in der Zeichnung nicht dargestellten dritten Kontaktbereichen über nicht gezeigte Leiterbahnen mit zumindest einigen der zweiten Kontaktbereiche 221 verbunden sind. Diese Steckkontaktbohrungen 220 dienen zum Einfügen und Kontaktieren nicht gezeigter Steckkontakte.In addition, the second printed circuit board 22 has plug-in contact bores 220, which are connected to at least some of the second contact areas 221 with third contact areas (not shown) via conductor tracks (not shown). This plug contact holes 220 are used to insert and contact plug contacts, not shown.

Die Fig. 3a - 3c zeigen eine vergleichbare Anordnung mit den Stiftkontakten 1', die in der Press-In-Technik ausgeführt sind. Diese werden im vorliegenden Fall daher nicht an der ersten Leiterkarte 21 verlötet, sondern stellen den elektrischen Kontakt mit den ersten Kontaktbereichen lediglich durch Hineinstecken ihrer Anschlussbereiche in die Kontaktbohrungen 210 her.the Figures 3a - 3c show a comparable arrangement with the pin contacts 1 ', which are performed in the press-in technique. In the present case, these are therefore not soldered to the first printed circuit board 21 , but merely establish electrical contact with the first contact areas by inserting their connection areas into the contact bores 210 .

Die Fig. 4a - 4c zeigen Konstruktionen, welche dazu dienen, den jeweiligen Stiftkontakt 1, 1', 1" von den mechanischen Steckkräften, die auf die zweite Leiterkarte 22 wirken, zu entlasten.the Figures 4a - 4c show constructions which serve to relieve the respective pin contact 1, 1′, 1″ of the mechanical insertion forces that act on the second printed circuit board 22.

In den Fig. 4a und 4b sind zwei Abstützelemente gezeigt, welche die zweite Leiterkarte beidseitig an der ersten Leiterkarte befestigen.In the Figures 4a and 4b two support elements are shown, which fasten the second printed circuit board to the first printed circuit board on both sides.

Alternativ oder ergänzend kann die zweite Leiterkarte 22 auch Befestigungsbohrungen 224 aufweisen, wie sie in der Fig. 4c gezeigt sind.Alternatively or additionally, the second printed circuit board 22 can also have fastening holes 224, as shown in FIG Figure 4c are shown.

Mit diesen Befestigungsbohrungen 224 kann sie z. B. mit Schraubbolzen oder langen Schrauben an die Frontseite des nicht gezeigten Gerätegehäuses geschraubt und dadurch stabil daran fixiert werden. Dadurch werden die Stiftkontakte 1, 1 ', 1" von Steckkräften, die auf die zweite Leiterkarte 22 wirken, entlastet.With these mounting holes 224, they can z. B. screwed with bolts or long screws on the front side of the device housing, not shown, and thereby stably fixed to it. This relieves the pin contacts 1, 1′, 1″ of insertion forces that act on the second printed circuit board 22 .

Auch wenn in den Figuren verschiedene Aspekte oder Merkmale der Erfindung jeweils in Kombination gezeigt sind, ist für den Fachmann - soweit nicht anders angegeben - ersichtlich, dass die dargestellten und diskutierten Kombinationen nicht die einzig möglichen sind. Insbesondere können einander entsprechende Einheiten oder Merkmalskomplexe aus unterschiedlichen Ausführungsbeispielen miteinander ausgetauscht werden.Even if different aspects or features of the invention are shown in combination in the figures, it is obvious to the person skilled in the art--unless stated otherwise--that the combinations shown and discussed are not the only possible ones. In particular, mutually corresponding units or complexes of features from different exemplary embodiments can be exchanged with one another.

BezugszeichenlisteReference List

1, 1', 1"1, 1', 1"
Stiftkontaktpin contact
1111
Steckbereichmating area
111111
Schlitzslot
12, 12'12, 12'
Anschlussbereichconnection area
120120
Durchgangsöffnungpassage opening
1313
Kragencollar
2121
erste Leiterkartefirst circuit board
210210
Kontaktbohrungcontact hole
211211
erster Kontaktbereichfirst contact area
2222
zweite Leiterkartesecond circuit board
220220
Steckkontaktbohrungenplug contact holes
221221
zweiter Kontaktbereichsecond contact area
2323
Abstützelementsupport element

Claims (10)

  1. Arrangement which has at least the following:
    - a first printed circuit board (21) which has at least one first electrical contact region (211);
    - a second printed circuit board (22) which has at least one second electrical contact region (221) and a third electrical contact region that are electrically conductively connected to one another via a conductor track of the second printed circuit board (21);
    - a printed circuit board connector for electrically connecting the first contact region (221) to the second contact region (221) in order to transmit electrical energy with high current intensities, wherein
    - the printed circuit board connector has at least one metallic, integral pin contact (1, 1', 1"), which is a solid rotational part which is suitable for transmitting current intensities of more than 10 Amperes, wherein
    - the pin contact (1, 1', 1") has, at a first end, a connection region (12, 12') with which it can be soldered to the first contact region (211) of the first printed circuit board (21) and/or can be pressed into the first printed circuit board (21) at the first contact region (211), and wherein
    - the pin contact (1, 1', 1'') has opposite, at a second end, a plug-in region (11) having a slot (111) running in the direction of the first end for mechanical fixing and for electrical contact connection of at least one second contact region (221) arranged at the edge of a second printed circuit board (22),
    - wherein the slot (111) has a constant width which corresponds to the thickness of the second printed circuit board.
  2. Arrangement according to Claim 1, wherein the pin contact (1, 1', 1'') has an axis of symmetry or a symmetrical plane, in the direction of which the slot (111) runs.
  3. Arrangement according to either of the preceding claims, wherein the pin contact (1, 1', 1") can be soldered to the first printed circuit board (21) and/or can be pressed into the printed circuit board (21) in such a manner that the slot (111) runs at a right angle to the first printed circuit board (21), and therefore the second printed circuit board (22) which is inserted into the slot (111) is automatically aligned at a right angle to the first printed circuit board (21) and at the same time can make electrical contact therewith via the pin contact (1, 1', 1").
  4. Arrangement according to one of the preceding claims, wherein the at least one pin contact (1, 1', 1") has, between its connection region (12, 12') and its plug-in region (11), a collar (13) running at a right angle to the slot (111) for reinforcing the fastening of the pin contact and for aligning on the first printed circuit board (21).
  5. Arrangement according to one of the preceding claims, wherein the connection region (12, 12') of the at least one pin contact (1, 1', 1") is designed as a soldered connection.
  6. Arrangement according to one of the preceding claims, wherein the connection region (12, 12') of the at least one pin contact (1, 1', 1") is in the form of press-in technology.
  7. Arrangement according to one of the preceding claims, wherein the second printed circuit board (22) is plugged by its at least one second contact region (221) into the slot (111) in the at least one pin contact (1, 1', 1") in order to produce mechanical fixing on and an electrically conductive connection to the first printed circuit board (21) .
  8. Arrangement according to Claim 7, wherein the second printed circuit board (22) is additionally also soldered by its at least one second contact region (221) to the connection region (12, 12') of the at least one pin contact (1, 1', 1").
  9. Arrangement according to either of Claims 7 and 8,
    wherein the arrangement furthermore has a device housing in which the two printed circuit boards (21, 22) are arranged,
    wherein the first printed circuit board (21) is aligned at a right angle to a front side of the device housing,
    wherein the second printed circuit board (22) runs parallel to the front side,
    wherein the front side has a through opening and a plug-in connector housing attached thereto,
    wherein a contact carrier with at least one plug-in contact located therein is fastened to the second printed circuit board,
    wherein the plug-in contact is electrically conductively fixed on one side to the third contact region of the second printed circuit board and projects on the plug-in side into the plug-in connector housing.
  10. Arrangement according to either of Claims 8 and 9, characterized in that the second printed circuit board (22) is additionally fastened to the first printed circuit board (21) via a supporting element (23) and/or to the front side of the device housing via a screw connection in order to withstand the plug-in forces of the plug-in contact.
EP19701963.1A 2018-01-26 2019-01-08 Printed-circuit board connector for high-current transmission Active EP3743962B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018101792.8A DE102018101792B4 (en) 2018-01-26 2018-01-26 Circuit card connector and associated circuit card arrangement for the transmission of high currents
PCT/DE2019/100009 WO2019144988A1 (en) 2018-01-26 2019-01-08 Printed-circuit board connector for high-current transmission

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EP3743962A1 EP3743962A1 (en) 2020-12-02
EP3743962B1 true EP3743962B1 (en) 2022-12-28

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US (1) US11201424B2 (en)
EP (1) EP3743962B1 (en)
KR (1) KR102507062B1 (en)
CN (1) CN111656618A (en)
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WO (1) WO2019144988A1 (en)

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DE102018101792A1 (en) 2019-08-01
CN111656618A (en) 2020-09-11
WO2019144988A1 (en) 2019-08-01
DE102018101792B4 (en) 2021-03-25
US20210066833A1 (en) 2021-03-04
KR20200113233A (en) 2020-10-06
EP3743962A1 (en) 2020-12-02
KR102507062B1 (en) 2023-03-07
US11201424B2 (en) 2021-12-14

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