EP2764581B1 - Electrical assembly comprising a direct plug element having force-free contacting - Google Patents

Electrical assembly comprising a direct plug element having force-free contacting Download PDF

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Publication number
EP2764581B1
EP2764581B1 EP12775174.1A EP12775174A EP2764581B1 EP 2764581 B1 EP2764581 B1 EP 2764581B1 EP 12775174 A EP12775174 A EP 12775174A EP 2764581 B1 EP2764581 B1 EP 2764581B1
Authority
EP
European Patent Office
Prior art keywords
contact
direct
region
plug
point
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.)
Not-in-force
Application number
EP12775174.1A
Other languages
German (de)
French (fr)
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EP2764581A1 (en
Inventor
Markus Kroeckel
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.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2764581A1 publication Critical patent/EP2764581A1/en
Application granted granted Critical
Publication of EP2764581B1 publication Critical patent/EP2764581B1/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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • 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
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
    • H01R12/87—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting automatically by insertion of rigid printed or like structures
    • 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
    • H01R12/70—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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6271—Latching means integral with the housing
    • H01R13/6273—Latching means integral with the housing comprising two latching arms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices

Definitions

  • the present invention relates to an electrical arrangement with a direct plug-in element with a plug housing and a direct contact for direct contacting of exposed contact areas on a counterpart, for example a printed circuit board.
  • direct plug contacts are used in which a direct plug directly on a counterpart such.
  • An essential problem area in direct contacting is that usually the direct plug-in elements are pushed from the front onto the contact areas on the printed circuit board, wherein sharp-edged printed circuit board edges or contact areas lead to damage of the direct contact during the plugging operation. This results from a force acting on the contact areas of the printed circuit board pressing force, which are built up by additional spring elements of the direct contact during insertion onto the circuit board.
  • the electrical arrangement according to the invention with the features of claim 1 has the advantage over that occurs when plugging or removing the direct plug no acting on the contact area pressing force during the sliding movement of the plug-in operation.
  • signs of wear on direct contacts of the direct plug-in element and contact areas of a printed circuit board can be significantly reduced.
  • the direct plug-in element can easily be disconnected several times from the printed circuit board and plugged in again.
  • thinner protective layers which are usually made of gold, can be used on the contact surfaces at the contact areas or the direct contacts. This results in drastic cost savings.
  • the direct contact itself causes the contact pressure on the contact area, so that no additional spring elements are required and thus reduces the number of required components.
  • the direct plug-in element comprises a plug housing and a direct contact, which is set up for direct contacting with an exposed contact area.
  • the direct contact is integrally formed and U-shaped with a contact blade region and a Anpressfeder Scheme.
  • a contact point on the contact blade region is arranged offset in the insertion direction to a contact point on the contact pressure area.
  • the connector housing has at least one guide area, which is connected to a counterpart, z. As a circuit board, can be brought into contact, wherein the guide portion is arranged in the insertion direction in front of the contact point.
  • an end face of the guide region protrudes perpendicularly to the insertion direction at least equidistant or wider than the contact point of the contact lamellar region.
  • the contact area of the circuit board can be introduced tangentially and thus force-free up to the contact point.
  • the guide area then dips into a recess or opening in the printed circuit board provided for this purpose and secures the direct plug-in element so that a continuously reliable direct contact is ensured. Only after immersion does the contact blade area come into contact with the exposed contact area.
  • the contact point is arranged in the insertion direction in front of the contact point.
  • the contact force of the direct contact on the carrier plate is only generated when the contact point is reached, so that the contact region of the printed circuit board can pass through the contact lamella region during the insertion process essentially without normal force.
  • the offset dimension between the contact point and the contact point ensures a normal force-free overlap between the contact point and the contact region of the printed circuit board.
  • the direct contact is movably mounted on the connector housing.
  • the direct contact of the printed circuit board during the insertion process by a pivoting movement dodge until the Anpressfeder Scheme is reached.
  • a plurality of direct contacts are arranged parallel to each other in the connector housing.
  • the guide areas are arranged laterally on the connector housing.
  • a space-saving arrangement can be realized, in particular in the case of a multiplicity of direct contacts arranged parallel to one another.
  • only two recesses / openings in the circuit board for the guide areas of the connector housing are required, which also greatly simplify the opening.
  • the invention is preferably used in the automotive sector, for. B. in wiring harnesses of vehicles used.
  • FIG. 1 an electrical arrangement 1 with a direct plug 2 according to a first example described in detail.
  • the electrical arrangement 1 comprises a direct plug-in element 2 and a counterpart 4, which in this embodiment is an integrally formed printed circuit board.
  • the counterpart 4 also has a contact region 40, which is arranged exposed on a first flat side 41.
  • the contact region 40 in this case has a length L relative to an insertion direction S and is arranged at a distance A from an end face 43 of the counterpart 4.
  • the direct plug-in element 2 comprises a substantially integrally formed plug housing 6 with an opening 61 facing the male counterpart 4 and a direct contact 3.
  • the direct contact 3 is rigidly secured in the plug housing 6 and connected to a line 5, z. B. by crimping, connected, which is led out of the connector housing 6.
  • the direct contact 3 is integrally formed and U-shaped and has a contact blade portion 31 which faces perpendicular to the insertion direction S of the first flat side 41 of the counterpart 4, and an oppositely arranged Anpressfeder Society 32, the second flat side 42 of the counterpart 4 faces.
  • the contact lamellar region 31 is arc-shaped and protrudes perpendicular to the plug-in direction S into the opening 61 of the plug housing 6 in such a way that a vertex defines a contact point 33 for contact with the contact region 40.
  • the vertex of the also arcuate formed Anpressfeder Schemes 32 defines a contact point 34 which is offset in the insertion direction S with a measure X to the contact point 33 and at a distance Y from a rear end wall 62 of the opening 61.
  • the contact region 40 When inserting the counterpart 4, the contact region 40 first contacts the contact point 33 on the contact lamella region 31 in the tangential direction due to this arrangement. In this case, no contact force acts perpendicular to the insertion direction S, since a height H of the opening is greater than a thickness D of the counterpart 4 is dimensioned. Only when the end face 43 of the counterpart 4 reaches the Anpressfeder Society 32, is perpendicular to the insertion direction S at the contact point 34 and at the contact point 33 each one constructed by arrows F1 and F2 spring force.
  • the contact lamella region 31 lies approximately in the middle of the exposed contact region 40.
  • FIG. 2 an electrical arrangement with a direct plug-in element 2 according to a second example described in detail. Identical or functionally identical components are designated here by the same reference numerals as in the first example.
  • the direct contact 3 in the direct plug-in element 2 of the second exemplary embodiment is in the plug housing 6, as in FIG. 2A illustrated by a double arrow P, movably mounted.
  • the direct contact 3 as in FIG. 2B illustrated, perform a pivoting movement in the direction of arrow P1 when the contact portion 40 during insertion into the opening 61 of the connector housing 6 contacts the contact blade region 31.
  • this pivoting movement of the direct contact 3 deviates from the counterpart 4, so that no normal force between the contact point 33 and the contact portion 40 is effective until the end face 43 of the counterpart 4 has reached the Anpressfeder Society 32.
  • the counterpart 4, as in FIG. 3A illustrates a recess 42 which is arranged in the insertion direction S at the level of the contact region 40.
  • a guide portion 60 is provided in the connector housing 6 of the direct plug 2, which is arranged on the first flat side 41 of the counterpart 4 facing end face 63 of the opening 61.
  • An end portion 64 of the guide portion 60 projects preferably at least equidistant, preferably further, into the opening 61 as the contact point 33 of the contact blade portion 31.
  • the contact portion 40 of the counterpart 4 as shown FIG. 3B It can be seen that the contact lamellar region 31 passes tangentially and without normal force during the insertion process in the region of the offset X without a contact force generated by the contact pressure region 32 acting on the contact lamella region 31.
  • each case a recess 42 on both sides of parallel juxtaposed contact areas 40 on the counterpart 4 is arranged.
  • the recesses 42 may be formed both as through holes or alternatively as depressions in the counterpart 4.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Stand der TechnikState of the art

Die vorliegende Erfindung betrifft eine elektrische Anordnung mit einem Direktsteckelement mit einem Steckergehäuse und einem Direktkontakt für eine Direktkontaktierung von freiliegenden Kontaktbereichen an einem Gegenstück, beispielsweise einer Leiterplatte.The present invention relates to an electrical arrangement with a direct plug-in element with a plug housing and a direct contact for direct contacting of exposed contact areas on a counterpart, for example a printed circuit board.

In jüngster Zeit werden vermehrt Direktsteckkontakte verwendet, bei denen ein Direktsteckelement unmittelbar auf ein Gegenstück, wie z. B. eine Leiterplatte oder ein Stanzgitter oder Substrat gesteckt wird. Insbesondere bei der Verwendung im Fahrzeugbereich ergeben sich jedoch erhöhte Anforderungen hinsichtlich einer Robustheit und Kontaktsicherheit derartiger Direktsteckverbindungen. Ein wesentlicher Problemkreis bei Direktkontaktierungen liegt darin, dass üblicherweise die Direktsteckelemente von vorne auf die Kontaktbereiche an der Leiterplatte aufgeschoben werden, wobei scharfkantige Leiterplattenkanten bzw. Kontaktbereiche zu Beschädigungen des Direktkontakts während des Steckvorgangs führen. Dies resultiert aus einer auf die Kontaktbereiche der Leiterplatte einwirkenden Anpresskraft, die durch zusätzliche Federelemente des Direktkontakts beim Steckvorgang auf die Leiterplatte aufgebaut werden. Folglich werden Oberflächen der Direktkontakte und der Kontaktflächen an der Leiterplatte abgerieben und verschleißen bei mehreren Steckvorgängen deutlich, sodass Schädigungen bzw. Funktionsstörungen der elektrischen Anordnung eintreten können. Ferner ist aus der DE 1 089 838 B eine elektrische Anordnung gemäß dem Oberbegriff des Anspruchs 1 bekannt. Weiterhin zeigt die US 5 057 032 A eine elektrische Anordnung mit einem Direktsteckelement und einer Leiterplatte, wobei das Direktsteckelement schräg auf die Leiterplatte aufgesteckt wird.Recently, more direct plug contacts are used in which a direct plug directly on a counterpart such. B. a circuit board or a lead frame or substrate is inserted. However, in particular when used in the vehicle sector, there are increased requirements with regard to the robustness and contact reliability of such direct plug connections. An essential problem area in direct contacting is that usually the direct plug-in elements are pushed from the front onto the contact areas on the printed circuit board, wherein sharp-edged printed circuit board edges or contact areas lead to damage of the direct contact during the plugging operation. This results from a force acting on the contact areas of the printed circuit board pressing force, which are built up by additional spring elements of the direct contact during insertion onto the circuit board. Consequently, surfaces of the direct contacts and the contact surfaces are abraded on the circuit board and wear out at several plug operations significantly, so that damage or malfunction of the electrical system can occur. Furthermore, from the DE 1 089 838 B an electrical arrangement according to the preamble of claim 1 known. Furthermore, the shows US 5 057 032 A an electrical arrangement with a direct plug-in element and a printed circuit board, wherein the direct plug-in element is slipped onto the printed circuit board obliquely.

Offenbarung der ErfindungDisclosure of the invention

Die erfindungsgemäße elektrische Anordnung mit den Merkmalen des Anspruchs 1 weist demgegenüber den Vorteil auf, dass beim Aufstecken bzw. Entfernen des Direktsteckelements keine auf den Kontaktbereich wirkende Anpresskraft während der Schiebebewegung des Steckvorgangs auftritt. Hierdurch können Verschleißerscheinungen an Direktkontakten des Direktsteckelements sowie Kontaktbereichen einer Leiterplatte signifikant reduziert werden. Somit kann erfindungsgemäß das Direktsteckelement problemlos mehrfach von der Leiterplatte getrennt und wieder aufgesteckt werden. Hierdurch ergibt sich ein weiterer Vorteil, dass dünnere Schutzschichten, welche üblicherweise aus Gold sind, auf den Kontaktflächen an den Kontaktbereichen bzw. den Direktkontakten verwendet werden können. Hieraus resultieren drastische Kosteneinsparungen. Zudem bewirkt der Direktkontakt selbst die Anpresskraft auf den Kontaktbereich, so dass keine zusätzlichen Federelemente erforderlich sind und sich die Anzahl der erforderlichen Bauteile somit reduziert. Dies wird erfindungsgemäß dadurch erreicht, dass das Direktsteckelement ein Steckergehäuse sowie einen Direktkontakt umfasst, welcher für eine Direktkontaktierung mit einem freiliegenden Kontaktbereich eingerichtet ist. Der Direktkontakt ist einstückig und U-förmig mit einem Kontaktlamellenbereich und einem Anpressfederbereich ausgebildet. Hierbei ist ein Kontaktpunkt am Kontaktlamellenbereich in Steckrichtung versetzt zu einem Anpresspunkt am Anpressfederbereich angeordnet. Ferner weist das Steckergehäuse zumindest einen Führungsbereich auf, der mit einem Gegenstück, z. B. einer Leiterplatte, in Kontakt bringbar ist, wobei der Führungsbereich in Steckrichtung vor dem Kontaktpunkt angeordnet ist. Hierbei ragt eine Stirnseite des Führungsbereichs senkrecht zur Steckrichtung mindestens gleich weit oder weiter als der Kontaktpunkt des Kontaktlamellenbereichs vor. Somit kann der Kontaktbereich der Leiterplatte tangential und somit kraftfrei bis zum Kontaktpunkt eingeführt werden. Der Führungsbereich taucht dann in eine dafür vorgesehene Ausnehmung bzw. Öffnung in der Leiterplatte ein und sichert das Direktsteckelement, so dass ein kontinuierlich betriebssicherer Direktkontakt gewährleistet ist. Erst nach dem Eintauchen kommt der Kontaktlamellenbereich mit dem freiliegenden Kontaktbereich in Kontakt.The electrical arrangement according to the invention with the features of claim 1 has the advantage over that occurs when plugging or removing the direct plug no acting on the contact area pressing force during the sliding movement of the plug-in operation. As a result, signs of wear on direct contacts of the direct plug-in element and contact areas of a printed circuit board can be significantly reduced. Thus, according to the invention, the direct plug-in element can easily be disconnected several times from the printed circuit board and plugged in again. This results in a further advantage that thinner protective layers, which are usually made of gold, can be used on the contact surfaces at the contact areas or the direct contacts. This results in drastic cost savings. In addition, the direct contact itself causes the contact pressure on the contact area, so that no additional spring elements are required and thus reduces the number of required components. This is inventively achieved in that the direct plug-in element comprises a plug housing and a direct contact, which is set up for direct contacting with an exposed contact area. The direct contact is integrally formed and U-shaped with a contact blade region and a Anpressfederbereich. In this case, a contact point on the contact blade region is arranged offset in the insertion direction to a contact point on the contact pressure area. Furthermore, the connector housing has at least one guide area, which is connected to a counterpart, z. As a circuit board, can be brought into contact, wherein the guide portion is arranged in the insertion direction in front of the contact point. In this case, an end face of the guide region protrudes perpendicularly to the insertion direction at least equidistant or wider than the contact point of the contact lamellar region. Thus, the contact area of the circuit board can be introduced tangentially and thus force-free up to the contact point. The guide area then dips into a recess or opening in the printed circuit board provided for this purpose and secures the direct plug-in element so that a continuously reliable direct contact is ensured. Only after immersion does the contact blade area come into contact with the exposed contact area.

Die Unteransprüche zeigen bevorzugte Weiterbildungen der Erfindung.The dependent claims show preferred developments of the invention.

Gemäß einer bevorzugten Ausgestaltung der Erfindung ist der Kontaktpunkt in Steckrichtung vor dem Anpresspunkt angeordnet. Dadurch wird die Anpresskraft des Direktkontakts auf die Trägerplatte erst mit Erreichen des Anpresspunkts erzeugt, sodass der Kontaktbereich der Leiterplatte den Kontaktlamellenbereich beim Steckvorgang im Wesentlichen normalkraftfrei passieren kann. Das Versatzmaß zwischen dem Kontaktpunkt und dem Anpresspunkt stellt eine normalkraftfreie Überdeckung zwischen dem Kontaktpunkt und dem Kontaktbereich der Leiterplatte sicher.According to a preferred embodiment of the invention, the contact point is arranged in the insertion direction in front of the contact point. As a result, the contact force of the direct contact on the carrier plate is only generated when the contact point is reached, so that the contact region of the printed circuit board can pass through the contact lamella region during the insertion process essentially without normal force. The offset dimension between the contact point and the contact point ensures a normal force-free overlap between the contact point and the contact region of the printed circuit board.

Besonders bevorzugt ist der Direktkontakt am Steckergehäuse beweglich gelagert. Dadurch kann der Direktkontakt der Leiterplatte beim Steckvorgang durch eine Schwenkbewegung ausweichen, bis der Anpressfederbereich erreicht ist. Somit entsteht im Wesentlichen keine Beanspruchung am Kontaktlamellenbereich vor dem Kontaktpunkt des Direktkontakts, sodass der Kontaktpunkt den Kontaktbereich der Leiterplatte kraftfrei erreichen kann.Particularly preferably, the direct contact is movably mounted on the connector housing. As a result, the direct contact of the printed circuit board during the insertion process by a pivoting movement dodge until the Anpressfederbereich is reached. Thus, there is essentially no stress on the contact blade area before the contact point of the direct contact, so that the contact point can reach the contact area of the printed circuit board without force.

Weiterhin bevorzugt sind mehrere Direktkontakte parallel nebeneinander im Steckergehäuse angeordnet. Dadurch wird eine sehr einfache und kompakte Bauform mit minimaler Baulänge des Direktsteckelements realisiert.Further preferably, a plurality of direct contacts are arranged parallel to each other in the connector housing. As a result, a very simple and compact design is realized with minimal length of the direct plug-in element.

Gemäß einer bevorzugten Ausgestaltung der Erfindung sind die Führungsbereiche seitlich am Steckergehäuse angeordnet. Dadurch kann insbesondere bei einer Vielzahl von parallel nebeneinander angeordneten Direktkontakten eine platzsparende Anordnung realisiert werden. Ferner sind unabhängig von der Anzahl der Direktkontakte lediglich zwei Ausnehmungen/Öffnungen in der Leiterplatte für die Führungsbereiche des Steckergehäuses erforderlich, die zudem das Öffnen wesentlich vereinfachen.According to a preferred embodiment of the invention, the guide areas are arranged laterally on the connector housing. As a result, a space-saving arrangement can be realized, in particular in the case of a multiplicity of direct contacts arranged parallel to one another. Furthermore, regardless of the number of direct contacts only two recesses / openings in the circuit board for the guide areas of the connector housing are required, which also greatly simplify the opening.

Die Erfindung wird vorzugsweise im Automotivebereich, z. B. bei Kabelbäumen von Fahrzeugen, verwendet.The invention is preferably used in the automotive sector, for. B. in wiring harnesses of vehicles used.

Zeichnungdrawing

Nachfolgend werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die begleitende Zeichnung im Detail beschrieben. In der Zeichnung ist:

Figur 1
eine schematische Schnittansicht einer elektrischen Anordnung mit einem Direktsteckelement gemäß einem ersten Beispiel,
Figur 2A, 2B, 2C
schematische Schnittansichten einer elektrischen Anordnung mit einem Direktsteckelement gemäß einem zweiten Beispiel, welche den Steckvorgang verdeutlichen,
Figur 3A, 3B, 3C
eine schematische Schnittansichten einer elektrischen Anordnung mit einem erfindungsgemäßen Direktsteckelement gemäß einem ersten Ausführungsbeispiel der Erfindung, welche den Steckvorgang verdeutlichen, und
Figur 4
eine schematische Draufsicht der elektrischen Anordnung von Figur 3.
Hereinafter, embodiments of the invention will be described in detail with reference to the accompanying drawings. In the drawing is:
FIG. 1
a schematic sectional view of an electrical arrangement with a direct plug-in element according to a first example,
FIGS. 2A, 2B, 2C
schematic sectional views of an electrical arrangement with a direct plug-in element according to a second example, which illustrate the plugging operation,
FIGS. 3A, 3B, 3C
a schematic sectional views of an electrical arrangement with a direct plug according to the invention according to a first embodiment of the invention, which illustrate the mating process, and
FIG. 4
a schematic plan view of the electrical arrangement of FIG. 3 ,

Bevorzugte Ausführungsform der ErfindungPreferred embodiment of the invention

Nachfolgend wird unter Bezugnahme auf Figur 1 eine elektrische Anordnung 1 mit einem ein Direktsteckelement 2 gemäß einem ersten Beispiel im Detail beschrieben.The following is with reference to FIG. 1 an electrical arrangement 1 with a direct plug 2 according to a first example described in detail.

Wie aus Figur 1 ersichtlich ist, umfasst die elektrische Anordnung 1 ein Direktsteckelement 2 und ein Gegenstück 4, welches in diesem Ausführungsbeispiel eine einstückig ausgebildete Leiterplatte ist. Das Gegenstück 4 weist ferner einen Kontaktbereich 40 auf, der freiliegend an einer ersten Flachseite 41 angeordnet ist. Der Kontaktbereich 40 weist hierbei relativ zu einer Steckrichtung S eine Länge L auf und ist mit einem Abstand A von einer Stirnseite 43 des Gegenstücks 4 angeordnet.How out FIG. 1 it can be seen, the electrical arrangement 1 comprises a direct plug-in element 2 and a counterpart 4, which in this embodiment is an integrally formed printed circuit board. The counterpart 4 also has a contact region 40, which is arranged exposed on a first flat side 41. The contact region 40 in this case has a length L relative to an insertion direction S and is arranged at a distance A from an end face 43 of the counterpart 4.

Das Direktsteckelement 2 umfasst ein im Wesentlichen einstückig ausgebildetes Steckergehäuse 6 mit einer dem aufzunehmenden Gegenstück 4 zugewandten Öffnung 61 und einen Direktkontakt 3. Der Direktkontakt 3 ist im Steckergehäuse 6 starr befestigt und an eine Leitung 5, z. B. mittels Crimpen, angebunden, die aus dem Steckergehäuse 6 herausgeführt ist.The direct plug-in element 2 comprises a substantially integrally formed plug housing 6 with an opening 61 facing the male counterpart 4 and a direct contact 3. The direct contact 3 is rigidly secured in the plug housing 6 and connected to a line 5, z. B. by crimping, connected, which is led out of the connector housing 6.

Wie aus Figur 1 weiter ersichtlich ist, ist der Direktkontakt 3 einstückig und U-förmig ausgebildet und weist einen Kontaktlamellenbereich 31, der senkrecht zur Steckrichtung S der ersten Flachseite 41 des Gegenstücks 4 zugewandt ist, und einen gegenüberliegend angeordneten Anpressfederbereich 32 auf, der einer zweiten Flachseite 42 des Gegenstücks 4 zugewandt ist.How out FIG. 1 is further apparent, the direct contact 3 is integrally formed and U-shaped and has a contact blade portion 31 which faces perpendicular to the insertion direction S of the first flat side 41 of the counterpart 4, and an oppositely arranged Anpressfederbereich 32, the second flat side 42 of the counterpart 4 faces.

Der Kontaktlamellenbereich 31 ist bogenförmig ausgebildet und ragt senkrecht zur Steckrichtung S in die Öffnung 61 des Steckergehäuses 6 derart vor, dass ein Scheitelpunkt einen Kontaktpunkt 33 für einen Kontakt mit dem Kontaktbereich 40 definiert. Der Scheitelpunkt des ebenfalls bogenförmig ausgebildeten Anpressfederbereichs 32 definiert einen Anpresspunkt 34, der in Steckrichtung S mit einem Maß X versetzt zum Kontaktpunkt 33 und in einem Abstand Y von einer hinteren Stirnwand 62 der Öffnung 61 angeordnet ist.The contact lamellar region 31 is arc-shaped and protrudes perpendicular to the plug-in direction S into the opening 61 of the plug housing 6 in such a way that a vertex defines a contact point 33 for contact with the contact region 40. The vertex of the also arcuate formed Anpressfederbereichs 32 defines a contact point 34 which is offset in the insertion direction S with a measure X to the contact point 33 and at a distance Y from a rear end wall 62 of the opening 61.

Beim Einstecken des Gegenstücks 4 kontaktiert der Kontaktbereich 40 aufgrund dieser Anordnung zuerst den Kontaktpunkt 33 am Kontaktlamellenbereich 31 in tangentialer Richtung. Hierbei wirkt keine Kontaktkraft senkrecht zur Steckrichtung S, da eine Höhe H der Öffnung größer als eine Dicke D des Gegenstücks 4 bemessen ist. Erst wenn die Stirnseite 43 des Gegenstücks 4 den Anpressfederbereich 32 erreicht, wird senkrecht zur Steckrichtung S am Anpresspunkt 34 sowie am Kontaktpunkt 33 jeweils eine durch Pfeile F1 und F2 gekennzeichnete Federkraft aufgebaut. Hierbei sind das Maß X und der Abstand Y des Direktkontakts 3 vorzugsweise so bemessen, dass deren Summe dem Abstand A sowie der halben Länge L des Kontaktbereichs 40 am Gegenstück 4 entspricht (X+Y=A+L/2). Dadurch liegt im gestecktem Zustand der Kontaktlamellenbereich 31 ungefähr in der Mitte des freiliegenden Kontaktbereichs 40.When inserting the counterpart 4, the contact region 40 first contacts the contact point 33 on the contact lamella region 31 in the tangential direction due to this arrangement. In this case, no contact force acts perpendicular to the insertion direction S, since a height H of the opening is greater than a thickness D of the counterpart 4 is dimensioned. Only when the end face 43 of the counterpart 4 reaches the Anpressfederbereich 32, is perpendicular to the insertion direction S at the contact point 34 and at the contact point 33 each one constructed by arrows F1 and F2 spring force. In this case, the dimension X and the distance Y of the direct contact 3 are preferably dimensioned such that their sum corresponds to the distance A and half the length L of the contact region 40 on the counterpart 4 (X + Y = A + L / 2). As a result, in the inserted state, the contact lamella region 31 lies approximately in the middle of the exposed contact region 40.

Bei der beschriebenen Anordnung ist es somit möglich, eine im Wesentlichen normalkraftfreie Kontaktierung des Direktkontakts 2 mit dem Kontaktbereich 40 herzustellen, die Beschädigungen am Kontaktlamellenbereich 31 aufgrund scharfer Kanten am Gegenstück 4 bzw. am Kontaktbereich 40 beim Steckvorgang verhindert. Zudem sind keine zusätzlichen Federelemente erforderlich, da die Kontaktkraft durch den Direktkontakt 3 selbst erzeugt wird.In the described arrangement, it is thus possible to produce a substantially normal force-free contacting of the direct contact 2 with the contact region 40, which prevents damage to the contact blade region 31 due to sharp edges on the counterpart 4 or on the contact region 40 during insertion. In addition, no additional spring elements are required because the contact force is generated by the direct contact 3 itself.

Nachfolgend wird mit Bezug auf Figur 2 eine elektrische Anordnung mit einem Direktsteckelement 2 gemäß einem zweiten Beispiel im Detail beschrieben. Gleiche oder funktional gleiche Bauteile sind hier mit denselben Bezugszeichen wie im ersten Beispiel bezeichnet.Hereinafter, with reference to FIG. 2 an electrical arrangement with a direct plug-in element 2 according to a second example described in detail. Identical or functionally identical components are designated here by the same reference numerals as in the first example.

Im Gegensatz zum zuvor beschriebenen ersten Beispiel ist der Direktkontakt 3 im Direktsteckelement 2 des zweiten Ausführungsbeispiels im Steckergehäuse 6, wie in Figur 2A durch einen Doppelpfeil P veranschaulicht, beweglich gelagert.In contrast to the first example described above, the direct contact 3 in the direct plug-in element 2 of the second exemplary embodiment is in the plug housing 6, as in FIG FIG. 2A illustrated by a double arrow P, movably mounted.

Hierdurch kann der Direktkontakt 3, wie in Figur 2B dargestellt, eine Schwenkbewegung in Richtung eines Pfeils P1 ausführen, wenn der Kontaktbereich 40 beim Einsteckvorgang in die Öffnung 61 des Steckergehäuses 6 den Kontaktlamellenbereich 31 kontaktiert. Durch diese Schwenkbewegung weicht der Direktkontakt 3 dem Gegenstück 4 aus, sodass keine Normalkraft zwischen dem Kontaktpunkt 33 und dem Kontaktbereich 40 wirksam ist, bis die Stirnseite 43 des Gegenstücks 4 den Anpressfederbereich 32 erreicht hat.As a result, the direct contact 3, as in FIG. 2B illustrated, perform a pivoting movement in the direction of arrow P1 when the contact portion 40 during insertion into the opening 61 of the connector housing 6 contacts the contact blade region 31. By this pivoting movement of the direct contact 3 deviates from the counterpart 4, so that no normal force between the contact point 33 and the contact portion 40 is effective until the end face 43 of the counterpart 4 has reached the Anpressfederbereich 32.

Wie in Figur 2C dargestellt, wird beim vollständigen Aufstecken bzw. Einstecken des Gegenstücks 4 der Anpressfederbereich 32 entgegengesetzt zur Kraft F2 senkrecht zur Steckrichtung S gegen das Steckergehäuse 6 gedrückt. Daraus resultiert eine Schwenkbewegung des Direktkontakts 3 in Richtung eines Pfeils P2 und die gleiche in Pfeilrichtung entgegengesetzte Kraft F1 wird am Kontaktpunkt 33 des Kontaktlamellenbereichs 31 zur Direktkontaktierung mit dem Kontaktbereich 40 erzeugt.As in Figure 2C is shown, when pressed completely or plugging in the counterpart 4 of the Anpressfederbereich 32 opposite to the force F2 perpendicular to the insertion direction S pressed against the connector housing 6. This results in a pivoting movement of the direct contact 3 in the direction of an arrow P2 and the same opposite in the arrow direction force F1 is generated at the contact point 33 of the contact blade region 31 for direct contact with the contact region 40.

Bei der beschriebenen Ausführungsform ist es somit möglich, Beschädigungen des Kontaktlamellenbereichs 31 durch die Schwenk- bzw. Ausweichbewegung des Direktkontakts 3 noch wirksamer zu verhindern. Zudem können dadurch geringe Winkelabweichungen bezüglich der Steckrichtung S beim Einstecken des Gegenstücks 4 ausgeglichen werden.In the described embodiment, it is thus possible to more effectively prevent damage to the contact blade area 31 by the pivoting or evasive movement of the direct contact 3. In addition, small angular deviations with respect to the insertion direction S during insertion of the counterpart 4 can be compensated.

Nachfolgend wird mit Bezug auf Figur 3A bis 3C und 4 eine elektrische Anordnung mit einem Direktsteckelement 2 gemäß einem ersten bevorzugten Ausführungsbeispiel der Erfindung im Detail beschrieben. Gleiche oder funktional gleiche Bauteile sind hier mit denselben Bezugszeichen wie im ersten Beispiel bezeichnet.Hereinafter, with reference to FIGS. 3A to 3C and 4 an electrical arrangement with a direct plug-in element 2 according to a first preferred embodiment of the invention described in detail. Same or functionally same Components are here designated by the same reference numerals as in the first example.

Im Gegensatz zum zuvor beschriebenen ersten Beispiel weist das Gegenstück 4, wie in Figur 3A veranschaulicht, eine Ausnehmung 42 auf, die in der Steckrichtung S auf Höhe des Kontaktbereichs 40 angeordnet ist. Ferner ist im Steckergehäuse 6 des Direktsteckelements 2 ein Führungsbereich 60 vorgesehen, der an der der ersten Flachseite 41 des Gegenstücks 4 zugewandten Stirnseite 63 der Öffnung 61 angeordnet ist. Ein Endabschnitt 64 des Führungsbereichs 60 ragt hierbei vorzugsweise zumindest gleichweit, vorzugsweise weiter, in die Öffnung 61 vor wie der Kontaktpunkt 33 des Kontaktlamellenbereichs 31. Dadurch kann der Kontaktbereich 40 des Gegenstücks 4, wie aus Figur 3B ersichtlich ist, den Kontaktlamellenbereich 31 beim Steckvorgang im Bereich des Versatzes X tangential und normalkraftfrei passieren, ohne dass am Kontaktlamellenbereich 31 eine durch den Anpressfederbereich 32 erzeugte Anpresskraft wirksam wird.In contrast to the first example described above, the counterpart 4, as in FIG. 3A illustrates a recess 42 which is arranged in the insertion direction S at the level of the contact region 40. Further, a guide portion 60 is provided in the connector housing 6 of the direct plug 2, which is arranged on the first flat side 41 of the counterpart 4 facing end face 63 of the opening 61. An end portion 64 of the guide portion 60 projects preferably at least equidistant, preferably further, into the opening 61 as the contact point 33 of the contact blade portion 31. Thus, the contact portion 40 of the counterpart 4, as shown FIG. 3B It can be seen that the contact lamellar region 31 passes tangentially and without normal force during the insertion process in the region of the offset X without a contact force generated by the contact pressure region 32 acting on the contact lamella region 31.

Bei vollständig eingestecktem Gegenstück 4 wird, wie aus Figur 3C ersichtlich ist, der Führungsbereich 40 aufgrund der durch die Kräfte F1, F2 am Kontaktlamellenbereich 31 und Anpressfederbereich 32 des Direktkontakts 3 erzeugten Spannung in die Ausnehmung 42 gedrückt und das Steckergehäuse 6 mit dem Gegenstück4 verrastet.When fully inserted counterpart 4, as is FIG. 3C can be seen, the guide portion 40 is pressed into the recess 42 due to the generated by the forces F1, F2 at the contact blade region 31 and Anpressfederbereich 32 of the direct contact 3 in the recess 42 and the connector housing 6 with the Gegenstück4 locked.

Wie in der Draufsicht von Figur 4 veranschaulicht, ist jeweils eine Ausnehmung 42 auf beiden Seiten von parallel nebeneinander angeordneten Kontaktbereichen 40 auf dem Gegenstück 4 angeordnet. Die Ausnehmungen 42 können sowohl als durchgehende Löcher oder alternativ als Vertiefungen im Gegenstück 4 ausgebildet sein.As in the top view of FIG. 4 illustrates, in each case a recess 42 on both sides of parallel juxtaposed contact areas 40 on the counterpart 4 is arranged. The recesses 42 may be formed both as through holes or alternatively as depressions in the counterpart 4.

Bei der beschriebenen Ausführungsform ist es somit möglich, das Steckergehäuse 6 am Gegenstück 4 zusätzlich formschlüssig zu fixieren, woraus eine kontinuierlich betriebssichere Direktkontaktierung für alle Betriebsbedingungen und Einsatzarten des Direktsteckelements 2 resultiert.In the described embodiment, it is thus possible to additionally fix the connector housing 6 on the counterpart 4 in a form-fitting manner, resulting in a continuously reliable direct contacting for all operating conditions and types of application of the direct plug-in element 2.

Claims (6)

  1. Electrical arrangement, comprising a direct plug element (2) and an opposing piece (4) having at least one exposed contact region (40),
    - wherein the direct plug element comprises:
    - a plug housing (6) having an opening (61) that is facing the opposing piece (4) that is to be received,
    - a direct contact (3) that is designed for direct contacting with an exposed contact region (40),
    - wherein the direct contact (3) is embodied as one part,
    - wherein the direct contact (3) is embodied in a U-shaped manner having a contact lamella region (31) and a press-on spring region (32), and
    - wherein a contact point (33) on the contact lamella region (31) is offset in the plugging direction (S) with respect to a press-on point (34) on the press-on spring region (32),
    characterized in that
    the plug housing (6) comprises at least one guiding region (60) that can be brought into contact with an opposing piece (4), wherein the guiding region (60) is arranged in the plugging direction (S) in front of the contact point (33),
    - wherein an end section (64) of the guiding region (60) protrudes at least as far as, preferably farther than, the contact point (33) of the contact lamella region (31) into the opening (61), and
    - wherein the opposing piece (4) comprises a cutout (42), which receives a partial region of the plug housing (2) of the direct plug element (1), in particular the guiding region (60).
  2. Arrangement according to Claim 1, characterized in that the contact point (33) is arranged in the plugging direction (S) in front of the press-on point (34).
  3. Arrangement according to Claim 1 or 2, characterized in that the direct contact (3) is mounted in a movable manner on the plug housing (6).
  4. Arrangement according to any one of the preceding claims, characterized in that several direct contacts (3) are arranged parallel to one another in the plug housing (6).
  5. Arrangement according to Claim 1, characterized in that the guiding regions (60) are arranged at the side on the plug housing (2).
  6. Arrangement according to one of the preceding claims, characterized in that the opposing piece (4) is a circuit board.
EP12775174.1A 2011-10-04 2012-09-21 Electrical assembly comprising a direct plug element having force-free contacting Not-in-force EP2764581B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011083949A DE102011083949A1 (en) 2011-10-04 2011-10-04 Direct plug-in element with non-contacting force
PCT/EP2012/068687 WO2013050264A1 (en) 2011-10-04 2012-09-21 Direct plug element having force-free contacting

Publications (2)

Publication Number Publication Date
EP2764581A1 EP2764581A1 (en) 2014-08-13
EP2764581B1 true EP2764581B1 (en) 2018-04-04

Family

ID=47046546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12775174.1A Not-in-force EP2764581B1 (en) 2011-10-04 2012-09-21 Electrical assembly comprising a direct plug element having force-free contacting

Country Status (5)

Country Link
US (1) US9225094B2 (en)
EP (1) EP2764581B1 (en)
CN (1) CN103875127B (en)
DE (1) DE102011083949A1 (en)
WO (1) WO2013050264A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015003001U1 (en) * 2015-04-23 2015-06-25 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Plug system with low-wear contact

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089838B (en) * 1959-02-03 1960-09-29 Siemens Ag Contact spring in a holder for contacting an insulating material plate provided with flat cable connections
US5057032A (en) * 1990-06-04 1991-10-15 Amp Incorporated Board edge connector
CN1094861A (en) * 1993-03-30 1994-11-09 刘进卿 Structure for expansion slot connector on circuit board
US5480316A (en) * 1994-06-23 1996-01-02 The Whitaker Corporation Low insertion force card edge connector
DE29623742U1 (en) * 1995-03-31 1999-11-04 Wieland Electric GmbH, 96052 Bamberg Electrical connector, in particular for printed circuit boards

Also Published As

Publication number Publication date
EP2764581A1 (en) 2014-08-13
WO2013050264A1 (en) 2013-04-11
DE102011083949A1 (en) 2013-04-04
CN103875127A (en) 2014-06-18
CN103875127B (en) 2016-12-21
US9225094B2 (en) 2015-12-29
US20140308858A1 (en) 2014-10-16

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