EP2695244B1 - Plug-type connector for direct contact-making on a printed circuit board - Google Patents

Plug-type connector for direct contact-making on a printed circuit board Download PDF

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Publication number
EP2695244B1
EP2695244B1 EP12707275.9A EP12707275A EP2695244B1 EP 2695244 B1 EP2695244 B1 EP 2695244B1 EP 12707275 A EP12707275 A EP 12707275A EP 2695244 B1 EP2695244 B1 EP 2695244B1
Authority
EP
European Patent Office
Prior art keywords
contact
plug
connector
electrical
circuit board
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
EP12707275.9A
Other languages
German (de)
French (fr)
Other versions
EP2695244A1 (en
Inventor
Martin Saur
Markus Lux
Eckhardt Philipp
Achim Puettner
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
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2695244A1 publication Critical patent/EP2695244A1/en
Application granted granted Critical
Publication of EP2695244B1 publication Critical patent/EP2695244B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
    • 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
    • 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
    • H01R12/515—Terminal blocks providing connections to wires or cables
    • 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
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
    • H01R13/2428—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using meander springs
    • 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
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal

Definitions

  • the invention relates to a connector according to the preamble of claim 1.
  • EP1852943A1 discloses a connector according to the preamble of claim 1.
  • the two contact spring legs perform differently rigid and ensure by means of a preassembled slide that for the Contacting the two areas differently optimal contact forces can be separated from each other and selectively applied.
  • the respective S-shaped bent contact spring is preassembled in the slide and expects there, for example, with a round contact (eg wire end sleeve) provided electrical line which is inserted laterally between a rear wall and the rigid spring leg.
  • the free leg end of the rigid spring leg behind a circumferential groove provided for this purpose of the inserted round contact this lock relative to the rear wall of the housing. Since the contact springs are not preloaded at this time, the round contacts can bring with low placement forces in the Verrastungspositionen. If all contacts are mounted and pre-locked in this way, the slider is inserted into the connector housing. By the middle portion of the bent spring is mounted in the slide, now the rigid spring leg is pressed against the respective circular contact. In this way, an electrical contact between the contact spring and the respective round contact is made, which is characterized by high contact normal forces. The flexible spring leg is not deformed by the displacement of the scenery.
  • a front seal is arranged around the slider and thus around the contact elements, which protects the Maisier Scheme by sealing on the surface of the ummoldeten control unit relative to the environment.
  • the advantage of this variant lies both in the secure, ie mechanically loadable fixation and electrical contacting of the cable sections of the current-carrying contact elements introduced into the plug connection and in the mechanically gentle contacting of the cable sections current-carrying contact elements of the connector on the surface of the contact lands of the circuit board
  • a bending-elastic end contact which is mechanically and electrically directly connected to the electrical line, with a rigid but movably mounted contact adapter in such a way that the distance between the line plane and the circuit board surface is bridged.
  • the bending-elastic end contact resembles in its outer shape a slender flat blade and can be connected by means of a crimp or a material connection to the electrical line.
  • the bearing of the bending-elastic end contact transversely to its longitudinal axis should take place at the two outer ends of the bending-elastic region.
  • the bending-elastic flat blade is first attached to the electrical line and then pushed parallel to the circuit board surface in the connector housing and locked there. It pushes behind the already preassembled and movably mounted rigid contact adapter, which may be slightly pushed out of its rest position and thus the expected contact partner (PCB contact surface) under certain circumstances. If the entire arrangement is placed on the contact surface for contacting, the contact interface and the contact surface touch each other. The movable contact spacer is pushed back into the housing and is supported on the middle section of the bending-elastic end contact. This is elastically bent in the middle to the rear, whereby the necessary for the permanent secure contact normal contact force is applied.
  • the contact adapter should be designed with a circular rolling contour of its contact surfaces. This would have the advantage that the contact adapter even with slight, planar displacements of the circuit board relative to the connector, the latched end contact (eg due to vibrations or thermally induced relative movements) in constant, rolling rolling mechanical contact both with the contact land and as well as with the bending-elastic contact element remains. As a result of the rolling motion, the expected friction wear is greatly reduced at the mechanical contact points and thus also at the electrically important contact points of the overall arrangement, compared to a sliding relative movement.
  • the advantage of this variant according to the invention lies in the safe bridging of the distance between the line level (mounting plane of the contact) and the circuit board level, as well as in the possibility at the same time to realize a rolling contact between the contacting partners involved in this way.
  • connector 1 is used for direct electrical contacting of contact surfaces ("land") 2 on a circuit board 3, which is surrounded with the exception of the contact surfaces 2 of a plastic extrusion 4 .
  • the connector 1 comprises a connector housing 5, a plurality of juxtaposed electrical end contacts 6 of electrical lines 7, which are inserted in a plug-in direction 8 in the connector housing 5, and a plurality of juxtaposed in a row separate electrical contact body in the form of S-shaped bent Contact springs 9.
  • a connector housing 5 a plurality of juxtaposed electrical end contacts 6 of electrical lines 7, which are inserted in a plug-in direction 8 in the connector housing 5, and a plurality of juxtaposed in a row separate electrical contact body in the form of S-shaped bent Contact springs 9.
  • Fig. 1 shown longitudinal section only the front end contact 6 in its row and the front in their row contact spring 9 are to be seen.
  • the S-shaped curved contact spring 9 abuts with its one bent spring leg 9a on the end contact 6 and is for contacting the contact surface 2 with its other bent spring legs 9b transversely (double arrow 10 ) to the end contact 6 on the contact surface 2 facing the housing side 11 of the connector housing 5 spring before.
  • the inserted end contact 6 may be formed as a round contact (eg wire end sleeve) and locked against the insertion direction 8 with the spring leg 9a resting thereon.
  • the over the housing side 11 projecting spring legs 9b is received in a slide 12 in the connector housing 5 in the transverse direction 10 slide.
  • a End seal 13 is provided which surrounds the projecting spring leg 9b together with the slider 12 and thereby seals against the connector housing 5.
  • the line 7 is sealed via a line seal 14 with respect to the connector housing 5.
  • the spring leg 9a of the contact spring 9 resting against the end contact 6 is wider and thus more rigid than the spring leg 9b protruding beyond the housing side 11.
  • the contact spring 9 also has contact studs 15a, 15b for contacting the end contact 6 and the contact surface 2.
  • Fig. 3a shows the not yet equipped with an end contact 6 connector 1, wherein the slider 12 is in a pre-locking position.
  • the S-shaped curved contact spring 9 is preassembled in the slider 12 and engages with its rigid spring leg 9a laterally into the track of the inserted end contact 6 a.
  • the end contact 6 is inserted in the insertion direction 8 through the line seal 14 into the connector housing 5, more precisely between the rear wall of the housing and the rigid spring leg 9a.
  • the bending-resistant spring leg 9a is deflected out of the plug-in track by the end contact 6 ( Fig. 3c ) until it engages with an end recess 16 provided in an annular groove ("Verrastungsnut") 17 of the end contact 6 and thereby secures the end contact 6 against withdrawal from the connector housing 5 ( Fig. 3d ).
  • the end contacts 6 can bring with low placement forces in the Verrastungspositionen.
  • the slider 12 is inserted in the direction of arrow 18 in the connector housing 5 ( Fig. 3e ) and locked in it. Since the between the two spring legs 9a, 9b located middle spring portion 9c of the contact spring 9 is fixed in the slider 12, now the rigid spring leg 9a is pressed with its contact tip 15a against the end contact 6 ( Fig. 3f ). In this way, an electrical contact between contact spring 9 and end contact 6 comes about, which is characterized by high contact normal forces. The bending soft spring leg 9b is not deformed by the displacement of the slider 12 and still protrudes unloaded from the slider 12 and the housing side 11 before.
  • the connector 1 is placed in the direction of arrow 19 on the contact surface 2 of the circuit board 3 ( FIGS. 3g, 3h ), as can be significantly lower forces acting on the direct contact 20 on the contact surface 2 as on the other spring leg 9a as desired on this spring leg 9b.
  • contact forces are separated and selectively applied, on the one hand a safe, ie mechanically resilient fixation and electrical contacting of the inserted into the connector 1 end contacts 6 and electrical lines 7 and on the other hand, the mechanical gentle contacting of the contact surfaces 2 by the contact springs 9 of the connector 1 possible.
  • the front seal 13 rests on the plastic extrusion 4 and thus seals the connector 1 from the printed circuit board 2 from.
  • Fig. 4 shows another connector 101, in which the end contacts 106 are each formed as a bending elastic in the transverse direction 10 flat blade and the electrical contact body 109 each as a transversely movably mounted, rigid contact adapter.
  • the inserted in the insertion direction 8 bending-elastic Endutton106 is primarily latched by means of a issued to the outside primary lance 120 in the connector housing 105 .
  • the contact adapter 109 is received in a transverse direction 10 flexible sealant portion 113a of the contact spacer 109 surrounding end seal 113 and thereby transversely movable stored.
  • the Endutton1 06 may be connected by means of a crimp or a material connection with the electrical line 7.
  • Fig. 5a shows the contact adapter 109 is inserted into a corresponding opening of the sealant portion 113a in the direction of arrow 121 .
  • Fig. 5b shows the top view of the partially equipped with contact spacers 109 front seal 113th
  • FIGS. 6a shows the connector 101 with the already inserted by the line seal 14 bending-elastic flat blade 106, but not yet pushed past the intermediate contact piece 109.
  • the intermediate contact piece 109 can protrude laterally into the plug-in track of the flat blade 106 to be inserted, so that upon further insertion, the intermediate contact piece 109 is deflected outwards by the flat blade 106 and bears against it.
  • the bending-elastic flat blade 106 engages with its front end of a knife into a corresponding recess 122 of the connector housing 105 and is primarily latched in the connector housing 105 by means of the primary lance 120, which engages behind an undercut 123 of the connector housing 105 in the insertion direction 8.
  • a bending of the bending-elastic flat blade 106 between these two abutments 124a, 124b into the interior of the connector housing 105 is possible through a corresponding housing recess.
  • the front seal 113 rests on the plastic extrusion coating 4 and thus seals the plug connector 101 with respect to the printed circuit board 2.
  • the contact spacer 109 in the sealant portion 113a of the end seal 113 is also pivotally mounted about a parallel to the row direction of the flat blade 106 and the contact spacers 109 extending axis 125 and lies in each case with a circulating about the axis 125 Wälzkontur 126 on the flat blade 106 and on the Contact surface 2 on.
  • the contact spacer 109 in the sealant portion 113a of the end seal 113 is also pivotally mounted about a parallel to the row direction of the flat blade 106 and the contact spacers 109 extending axis 125 and lies in each case with a circulating about the axis 125 Wälzkontur 126 on the flat blade 106 and on the Contact surface 2 on.
  • the contact spacer 109 on the flat blade 106 and roll on the contact surface 2 rolling and thus remains in mechanical and thus electrically conductive contact with the flat blade 106 and the contact surface 2.
  • the rolling motion is also the expected at the mechanical contact points and thus also at the electrically significant contact points of the overall arrangement Reibverschl supplement compared with a sliding relative movement of the contact partners, greatly reduced.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

Die Erfindung geht aus von einem Steckverbinder nach der Gattung des Anspruchs 1.The invention relates to a connector according to the preamble of claim 1.

Stand der TechnikState of the art

Derzeit existieren im Automotive-Bereich Motorsteuergeräte in verschiedenen mechanischen Ausführungen. Eine aktuelle Entwicklung in diesem Bereich ist die Gestaltung von sogenannten ummoldeten (umspritzten) Motorsteuergeräten mit einem Kontaktierbereich zur Direktkontaktierung. Durch die Direktkontaktierung von Leiterplatte und Kabelbau entfällt die sonst übliche Messerleiste. Hierdurch können die Herstellkosten für ein Motorsteuergerät gesenkt werden. Durch das Ummolden der bestückten Leiterplatte entfallen mehrere Fertigungsschritte, wodurch auch wieder Kosten eingespart werden können. Beim Ummolden wird die bestückte Leiterplatte direkt mit einem Kunststoff umspritzt (vorzugsweise mit einem Duroplast), wodurch die sonst üblichen Bauteile Boden und Deckel entfallen. Es entsteht ein kompaktes, vergleichsweise kleines und gut gegenüber Umwelteinflüssen geschütztes. Motorsteuergerät. Durch diesen einfachen und kompakten Gesamtaufbau eines ummoldeten Motorsteuergerätes werden jedoch die Kontaktierung der Leiterplatte durch den Steckverbinder der Gegenseite und eine sichere Fixierung der Anordnung von Motorsteuergerät und Steckverbindung im Automobil erschwert.Currently there are engine control units in various mechanical designs in the automotive sector. A current development in this area is the design of so-called ummoldeten (overmolded) engine control units with a Kontaktierbereich for direct contacting. Due to the direct contacting of printed circuit board and cable construction eliminates the usual male connector. As a result, the production costs for an engine control unit can be reduced. By Ummolden the assembled printed circuit board eliminates several manufacturing steps, which also costs can be saved again. When Ummolden the assembled printed circuit board is molded directly with a plastic (preferably with a thermoset), which eliminates the usual components floor and lid. The result is a compact, comparatively small and well protected against environmental influences. Engine control unit. However, this simple and compact overall structure of a ummoldeten engine control unit, the contacting of the circuit board by the connector of the opposite side and a secure fixing of the arrangement of the engine control unit and connector in the car are difficult.

EP1852943A1 offenbart einen Steckverbinder gemäß dem Oberbegriff des Anspruchs 1. EP1852943A1 discloses a connector according to the preamble of claim 1.

Aufgrund der allgemeinen Forderung nach einer Minimierung des Gesamtbauraumes ist es gewünscht, die elektrischen Kontakte des Steckverbinders, die mechanisch und elektrisch mit den elektrischen Einzelleitungen verbunden sind, den Kontaktflächen parallel zur Leiterplatte zuzuführen. Die Notwendigkeit, die montierten Kontakte an ihren jeweiligen Leitungen einzeln abzudichten, und die damit verbundene Notwendigkeit, die Kontakte durch eben diese Dichtungsöffnung hindurch in den gedichteten Innenbereich des Steckers montieren zu können, verbietet eine großbauende oder filigrane, bzw. scharfkantige Gestaltung eben dieser Kontakte.Due to the general demand for minimizing the overall installation space, it is desirable to have the electrical contacts of the connector, which are mechanically and electrically connected to the electrical Individual lines are connected to supply the contact surfaces parallel to the circuit board. The need to individually seal the mounted contacts on their respective leads, and the associated need to be able to mount the contacts through the same seal opening in the sealed inner region of the plug prohibits a large-building or filigree, or sharp-edged design just these contacts.

Die Aufgabe der Erfindung besteht darin, bei einem gattungsgemäßen Steckverbinder folgende Anforderungen zu erreichen:

  • eine mechanisch schonende Kontaktierung der stromführenden Kontaktelemente des Steckverbinders auf der Kontaktfläche der Leiterplatte;
  • eine sichere, d.h. mechanisch belastbare Fixierung und elektrische Kontaktierung der in die Steckverbindung eingeführten Kabelabschnitte der stromführenden Kontaktelemente;
  • eine sichere Dichtung auf der Leiterplatte zum Schutz des Kontaktierbereiches vor schädlichen Umwelteinflüssen;
  • eine kompakte Bauweise der Gesamtanordnung von Leiterplatte und Steckverbinder.
The object of the invention is to achieve the following requirements in a generic connector:
  • a mechanically gentle contacting of the current-carrying contact elements of the connector on the contact surface of the circuit board;
  • a secure, ie mechanically loadable fixation and electrical contacting of the cable sections of the current-carrying contact elements introduced into the plug connection;
  • a secure seal on the circuit board to protect the Kontaktierbereiches from harmful environmental influences;
  • a compact design of the overall arrangement of printed circuit board and connectors.

Offenbarung der ErfindungDisclosure of the invention

Diese Aufgabe wird erfindungsgemäß durch einen Steckverbinder mit den Merkmalen von Anspruch 1 gelöst.This object is achieved by a connector with the features of claim 1.

Vorteileadvantages

Es wird in einer ersten nicht zur Erfindung gehörenden Variante vorgeschlagen, die elektrische Verbindung zwischen der elektrischen Leitung (auf der Kabelbaumseite) und der Kontaktfläche (auf der Leiterplattenseite) mittels einer S-förmig aufgebogenen Kontaktfeder herzustellen. Darüber hinaus wird vorgeschlagen, die beiden Kontaktfederschenkel unterschiedlich biegesteif auszuführen und mittels eines vormontierten Schiebers dafür zu sorgen, dass die für die Kontaktierung der beiden Bereiche unterschiedlich optimalen Kontaktkräfte voneinander getrennt und gezielt aufgebracht werden können. Vorzugsweise wird die jeweilige S-förmig aufgebogene Kontaktfeder in dem Schieber vormontiert und erwartet dort die z.B. mit einem Rundkontakt (z.B. Aderendhülse) versehene elektrische Leitung, die seitlich zwischen einer Gehäuserückwand und dem biegesteifen Federschenkel eingeschoben wird. Dabei kann das freie Schenkelende des biegesteifen Federschenkels hinter einer dafür vorgesehenen umlaufenden Nut des eingeschobenen Rundkontaktes diesen gegenüber der Gehäuserückwand verrasten. Da die Kontaktfedern zu diesem Zeitpunkt noch nicht vorgespannt sind, lassen sich die Rundkontakte mit geringen Bestückkräften in die Verrastungspositionen bringen. Sind alle Kontakte auf diese Weise montiert und vorverrastet, wird der Schieber in das Steckergehäuse eingeschoben. Indem der mittlere Abschnitt der aufgebogenen Feder in dem Schieber gelagert ist, wird nun der biegesteife Federschenkel gegen den jeweiligen Rundkontakt gedrückt. Auf diese Weise kommt eine elektrische Kontaktierung zwischen der Kontaktfeder und dem jeweiligen Rundkontakt zustande, die durch hohe Kontaktnormalkräfte gekennzeichnet ist. Der biegeweiche Federschenkel wird durch die Verschiebung der Kulisse noch nicht verformt. Er ragt weiterhin unbelastet auf der Unterseite der Kulisse heraus und steht für eine Kontaktierung auf der jeweiligen Kontaktfläche bereit. Wird der Steckverbinder auf die Kontaktflächen des ummoldeten Steuergerätes aufgesetzt, so können dort wie gewünscht deutlich geringere Kräfte an der Berührstelle auf den Kontaktflächen wirken als auf der Seite der elektrischen Leitung. Vorzugsweise ist um den Schieber und damit um die Kontaktelemente herum eine Stirndichtung angeordnet, die den Kontaktierbereich durch Dichtung auf der Oberfläche des ummoldeten Steuergerätes gegenüber der Umgebung schützt.It is proposed in a first not belonging to the invention variant to produce the electrical connection between the electrical line (on the harness side) and the contact surface (on the circuit board side) by means of an S-shaped bent contact spring. In addition, it is proposed that the two contact spring legs perform differently rigid and ensure by means of a preassembled slide that for the Contacting the two areas differently optimal contact forces can be separated from each other and selectively applied. Preferably, the respective S-shaped bent contact spring is preassembled in the slide and expects there, for example, with a round contact (eg wire end sleeve) provided electrical line which is inserted laterally between a rear wall and the rigid spring leg. In this case, the free leg end of the rigid spring leg behind a circumferential groove provided for this purpose of the inserted round contact this lock relative to the rear wall of the housing. Since the contact springs are not preloaded at this time, the round contacts can bring with low placement forces in the Verrastungspositionen. If all contacts are mounted and pre-locked in this way, the slider is inserted into the connector housing. By the middle portion of the bent spring is mounted in the slide, now the rigid spring leg is pressed against the respective circular contact. In this way, an electrical contact between the contact spring and the respective round contact is made, which is characterized by high contact normal forces. The flexible spring leg is not deformed by the displacement of the scenery. He still protrudes unloaded on the bottom of the backdrop and is ready for a contact on the respective contact surface. If the connector is placed on the contact surfaces of the ummoldeten control unit, then there can act as desired significantly lower forces at the contact point on the contact surfaces than on the side of the electrical line. Preferably, a front seal is arranged around the slider and thus around the contact elements, which protects the Kontaktierbereich by sealing on the surface of the ummoldeten control unit relative to the environment.

Der Vorteil dieser Variante liegt sowohl in der sicheren, d.h. mechanisch belastbaren Fixierung und elektrische Kontaktierung der in die Steckverbindung eingeführten, Kabelabschnitte der stromführenden Kontaktelemente und in der mechanisch schonenden Kontaktierung der stromführenden Kontaktelemente des Steckverbinders auf der Oberfläche der Kontaktlands der LeiterplatteThe advantage of this variant lies both in the secure, ie mechanically loadable fixation and electrical contacting of the cable sections of the current-carrying contact elements introduced into the plug connection and in the mechanically gentle contacting of the cable sections current-carrying contact elements of the connector on the surface of the contact lands of the circuit board

Erfindungsgemäß wird in einer zweiten Variante vorgeschlagen, einen biege-elastisches Endkontakt, der mechanisch und elektrisch direkt mit der elektrischen Leitung verbunden ist, mit einem starren, jedoch beweglich gelagerten Kontaktzwischenstück derart zu kombinieren, dass die Distanz zwischen der Leitungsebene und der Leiterplattenoberfläche überbrückt wird. Der biege-elastische Endkontakt ähnelt in seiner äußeren Gestalt einem schlanken Flachmesser und kann mittels einer Crimpverbindung oder einer stoffschlüssigen Verbindung mit der elektrischen Leitung verbunden sein. Die Lagerung des biege-elastischen Endkontakts quer zu seiner Längsachse sollte an den beiden äußeren Enden des biege-elastischen Bereiches erfolgen. Eine Durchbiegung dieses Bereiches zwischen diesen beiden Widerlagern ins Innere des Gehäuses hinein sollte durch eine entsprechende Aussparung in diesem Gehäuseabschnitt möglich sein. Das biege-elastische Flachmesser wird zunächst an der elektrischen Leitung befestigt und anschließend parallel zur Leiterplattenoberfläche in das Steckverbindergehäuse geschoben und dort verrastet. Dabei schiebt es sich hinter das bereits vormontiere und beweglich gelagerte starre Kontaktzwischenstück, wodurch dieses unter Umständen leicht aus seiner Ruheposition und damit dem erwarteten Kontaktpartner (Leiterplattenkontaktfläche) entgegen geschoben wird. Wird die gesamte Anordnung zur Kontaktierung auf die Kontaktfläche aufgesetzt, so berühren sich das Kontaktzwischenstück und die Kontaktfläche. Das bewegliche Kontaktzwischenstück wird in das Gehäuse zurückgeschoben und stützt sich dabei auf dem mittleren Abschnitt des biege-elastischen Endkontakts ab. Dieser wird elastisch in der Mitte nach hinten durchgebogen, wodurch die für die dauerhaft sichere Kontaktierung notwendige Kontaktnormalkraft aufgebracht wird.According to the invention, in a second variant, it is proposed to combine a bending-elastic end contact, which is mechanically and electrically directly connected to the electrical line, with a rigid but movably mounted contact adapter in such a way that the distance between the line plane and the circuit board surface is bridged. The bending-elastic end contact resembles in its outer shape a slender flat blade and can be connected by means of a crimp or a material connection to the electrical line. The bearing of the bending-elastic end contact transversely to its longitudinal axis should take place at the two outer ends of the bending-elastic region. A deflection of this area between these two abutments into the interior of the housing should be possible through a corresponding recess in this housing section. The bending-elastic flat blade is first attached to the electrical line and then pushed parallel to the circuit board surface in the connector housing and locked there. It pushes behind the already preassembled and movably mounted rigid contact adapter, which may be slightly pushed out of its rest position and thus the expected contact partner (PCB contact surface) under certain circumstances. If the entire arrangement is placed on the contact surface for contacting, the contact interface and the contact surface touch each other. The movable contact spacer is pushed back into the housing and is supported on the middle section of the bending-elastic end contact. This is elastically bent in the middle to the rear, whereby the necessary for the permanent secure contact normal contact force is applied.

Vorzugsweise sollte das Kontaktzwischenstück mit einer kreisförmigen Wälzkontur seiner Kontaktierflächen ausgeführt sein. Dies hätte den Vorteil, dass das Kontaktzwischenstück auch bei geringförmigen, ebenen Verschiebungen der Leiterplatte gegenüber dem Steckverbinder, den verrasteten Endkontakt (z.B. infolge von Schwingungen oder thermisch induzierten Relativbewegungen) in ständigem, wälzend abrollendem mechanischem Kontakt sowohl mit dem Kontaktland und als auch mit dem biege-elastischen Kontaktelement bleibt. Durch die Wälzbewegung ist an den mechanischen Berührstellen und damit auch an den elektrisch bedeutsamen Kontaktstellen der Gesamtanordnung der zu erwartende Reibverschleiß, verglichen mit einer gleitenden Relativbewegung, der Kontaktpartner stark reduziert.Preferably, the contact adapter should be designed with a circular rolling contour of its contact surfaces. This would have the advantage that the contact adapter even with slight, planar displacements of the circuit board relative to the connector, the latched end contact (eg due to vibrations or thermally induced relative movements) in constant, rolling rolling mechanical contact both with the contact land and as well as with the bending-elastic contact element remains. As a result of the rolling motion, the expected friction wear is greatly reduced at the mechanical contact points and thus also at the electrically important contact points of the overall arrangement, compared to a sliding relative movement.

Der Vorteil dieser erfindungsgemäßen Variante liegt in der sicheren Überbrückung des Abstandes zwischen der Leitungsebene (Montageebene des Kontaktes) und der Leiterplattenebene sowie in der Möglichkeit, gleichzeitig auf diese Weise eine wälzende Kontaktierung zwischen den beteiligten Kontaktierungspartnern zu realisieren.The advantage of this variant according to the invention lies in the safe bridging of the distance between the line level (mounting plane of the contact) and the circuit board level, as well as in the possibility at the same time to realize a rolling contact between the contacting partners involved in this way.

Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further advantages and advantageous embodiments of the subject invention are the description, the drawings and claims removed.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Nachfolgend wird die Erfindung anhand zweier in der Zeichnung exemplarisch wiedergegebener Ausführungsbeispiele näher erläutert. Es zeigen:

Fig. 1
ein nicht zur Erfindung gehörendes Ausführungsbeispiel des Steckverbinders in einem Längsschnitt;
Fig. 2
die Abwicklung einer in Fig. 1 gezeigten Kontaktfeder;
Fign. 3a-3h
die Bestückung und die Direktkontaktierung des Fig. 1 gezeigten Steckverbinders;
Fig. 4
ein Ausführungsbeispiel des erfindungsgemäßen Steckverbinders in einem Längsschnitt;
Fign. 5a, 5b
eine in Fig. 4 gezeigte Stirndichtung in einem Längsschnitt (Fig. 5a) und in einer Draufsicht (Fig. 5b) ;
Fign. 6a-6d
die Bestückung und die Direktkontaktierung des in Fig. 4 gezeigten Steckverbinders; und
Fign. 7a, 7b
die Kontaktsituation bei Relativverschiebungen zwischen dem in Fig. 4 gezeigten Steckverbinder und einer direktkontaktierten Leiterplatte.
The invention will be explained in more detail with reference to two exemplified in the drawings exemplary embodiments. Show it:
Fig. 1
a not belonging to the invention embodiment of the connector in a longitudinal section;
Fig. 2
the settlement of an in Fig. 1 shown contact spring;
FIGS. 3a-3h
the equipment and the direct contacting of the Fig. 1 shown connector;
Fig. 4
an embodiment of the connector according to the invention in a longitudinal section;
FIGS. 5a, 5b
one in Fig. 4 shown end seal in a longitudinal section ( Fig. 5a ) and in a plan view ( Fig. 5b );
FIGS. 6a-6d
the assembly and direct contacting of the in Fig. 4 shown connector; and
FIGS. 7a, 7b
the contact situation with relative shifts between the in Fig. 4 shown connector and a direct-contact printed circuit board.

Ausführungsformenembodiments

Der in Fig. 1 gezeigte Steckverbinder 1 dient zur elektrischen Direktkontaktierung von Kontaktflächen ("Land") 2 auf einer Leiterplatte 3, welche mit Ausnahme der Kontaktflächen 2 von einer Kunststoffumspritzung 4 umgeben ist.The in Fig. 1 shown connector 1 is used for direct electrical contacting of contact surfaces ("land") 2 on a circuit board 3, which is surrounded with the exception of the contact surfaces 2 of a plastic extrusion 4 .

Der Steckverbinder 1 umfasst ein Steckverbindergehäuse 5, mehrere in einer Reihe nebeneinander angeordnete elektrische Endkontakte 6 elektrischer Leitungen 7, die in einer Steckrichtung 8 in das Steckverbindergehäuse 5 eingesteckt sind, sowie mehrere in einer Reihe nebeneinander angeordnete separate elektrische Kontaktkörper in Form von S-förmig gebogenen Kontaktfedern 9. In dem in Fig. 1 gezeigten Längsschnitt sind jeweils nur der in seiner Reihe vordere Endkontakt 6 und die in ihrer Reihe vordere Kontaktfeder 9 zu sehen.The connector 1 comprises a connector housing 5, a plurality of juxtaposed electrical end contacts 6 of electrical lines 7, which are inserted in a plug-in direction 8 in the connector housing 5, and a plurality of juxtaposed in a row separate electrical contact body in the form of S-shaped bent Contact springs 9. In the in Fig. 1 shown longitudinal section only the front end contact 6 in its row and the front in their row contact spring 9 are to be seen.

Die S-förmig gebogene Kontaktfeder 9 liegt mit ihrem einen gebogenen Federschenkel 9a am Endkontakt 6 an und steht für die Kontaktierung der Kontaktfläche 2 mit ihrem anderen gebogenen Federschenkel 9b quer (Doppelpfeil 10) zum Endkontakt 6 über die der Kontaktfläche 2 zugewandte Gehäuseseite 11 des Steckverbindergehäuses 5 federnd vor. Der eingesteckte Endkontakt 6 kann als Rundkontakt (z.B. Aderendhülse) ausgebildet und mit dem daran anliegenden Federschenkel 9a entgegen der Einsteckrichtung 8 verrastet sein. Der über die Gehäuseseite 11 vorstehende Federschenkel 9b ist in einem im Steckverbindergehäuse 5 in Querrichtung 10 verschiebbaren Schieber 12 aufgenommen. An der Gehäuseseite 11 ist weiterhin eine Stirndichtung 13 vorgesehen, die den vorstehenden Federschenkel 9b samt dem Schieber 12 ringsum umgibt und dadurch gegenüber dem Steckverbindergehäuse 5 abdichtet. Die Leitung 7 ist über eine Leitungsdichtung 14 gegenüber dem Steckverbindergehäuse 5 abgedichtet.The S-shaped curved contact spring 9 abuts with its one bent spring leg 9a on the end contact 6 and is for contacting the contact surface 2 with its other bent spring legs 9b transversely (double arrow 10 ) to the end contact 6 on the contact surface 2 facing the housing side 11 of the connector housing 5 spring before. The inserted end contact 6 may be formed as a round contact (eg wire end sleeve) and locked against the insertion direction 8 with the spring leg 9a resting thereon. The over the housing side 11 projecting spring legs 9b is received in a slide 12 in the connector housing 5 in the transverse direction 10 slide. On the housing side 11 is still a End seal 13 is provided which surrounds the projecting spring leg 9b together with the slider 12 and thereby seals against the connector housing 5. The line 7 is sealed via a line seal 14 with respect to the connector housing 5.

Wie in Fig. 2 gezeigt, ist der am Endkontakt 6 anliegende Federschenkel 9a der Kontaktfeder 9 breiter und damit biegesteifer ausgebildet als der über die Gehäuseseite 11 vorstehende Federschenkel 9b. Die Kontaktfeder 9 weist außerdem Kontaktkuppen 15a, 15b zur Kontaktierung des Endkontakts 6 und der Kontaktfläche 2 auf.As in Fig. 2 9, the spring leg 9a of the contact spring 9 resting against the end contact 6 is wider and thus more rigid than the spring leg 9b protruding beyond the housing side 11. The contact spring 9 also has contact studs 15a, 15b for contacting the end contact 6 and the contact surface 2.

Mit Bezug auf Fig. 3 werden im Folgenden die Bestückung des Steckverbinders 1 mit dem Endkontakt 6, das Vorspannen der Kontaktfeder 9 und die Direktkontaktierung auf der Leiterplatte 3 beschrieben.Regarding Fig. 3 will be described below the assembly of the connector 1 with the end contact 6, the biasing of the contact spring 9 and the direct contact on the circuit board 3.

Fig. 3a zeigt den noch nicht mit einem Endkontakt 6 bestückten Steckverbinder 1, wobei sich der Schieber 12 in einer Vorraststellung befindet. Die S-förmig gebogene Kontaktfeder 9 ist in dem Schieber 12 vormontiert und greift mit ihrem biegesteifen Federschenkel 9a seitlich in die Steckbahn des einzusteckenden Endkontakts 6 ein. Fig. 3a shows the not yet equipped with an end contact 6 connector 1, wherein the slider 12 is in a pre-locking position. The S-shaped curved contact spring 9 is preassembled in the slider 12 and engages with its rigid spring leg 9a laterally into the track of the inserted end contact 6 a.

Wie in Fig. 3b gezeigt, wird der Endkontakt 6 in Steckrichtung 8 durch die Leitungsdichtung 14 hindurch in das Steckverbindergehäuse 5, genauer gesagt zwischen der Gehäuserückwand und dem biegesteifen Federschenkel 9a, eingeschoben. Dadurch wird der biegesteife Federschenkel 9a durch den Endkontakt 6aus der Steckbahn ausgelenkt ( Fig. 3c ), bis er mit einer endseitig vorgesehenen Rastaussparung 16 in eine Ringnut ("Verrastungsnut") 17 des Endkontakts 6 einrastet und dadurch den Endkontakt 6 gegen Herausziehen aus dem Steckverbindergehäuse 5 sichert ( Fig. 3d ). As in Fig. 3b shown, the end contact 6 is inserted in the insertion direction 8 through the line seal 14 into the connector housing 5, more precisely between the rear wall of the housing and the rigid spring leg 9a. As a result, the bending-resistant spring leg 9a is deflected out of the plug-in track by the end contact 6 ( Fig. 3c ) until it engages with an end recess 16 provided in an annular groove ("Verrastungsnut") 17 of the end contact 6 and thereby secures the end contact 6 against withdrawal from the connector housing 5 ( Fig. 3d ).

Da die Kontaktfedern 9 zu diesem Zeitpunkt noch nicht vorgespannt sind, lassen sich die Endkontakte 6 mit geringen Bestückkräften in die Verrastungspositionen bringen. Sind alle Endkontakte 6 der Reihe auf diese Weise montiert und vorverrastet, wird der Schieber 12 in Pfeilrichtung 18 in das Steckverbindergehäuse 5 eingeschoben ( Fig. 3e ) und darin verrastet. Da der zwischen den beiden Federschenkeln 9a, 9b befindliche mittlere Federabschnitt 9c der Kontaktfeder 9 in dem Schieber 12 befestigt ist, wird nun der biegesteife Federschenkel 9a mit seiner Kontaktkuppe 15a gegen den Endkontakt 6 gedrückt ( Fig. 3f ). Auf diese Weise kommt eine elektrische Kontaktierung zwischen Kontaktfeder 9 und Endkontakt 6 zustande, die sich durch hohe Kontaktnormalkräfte auszeichnet. Der biegeweiche Federschenkel 9b wird durch die Verschiebung des Schiebers 12 nicht verformt und ragt weiterhin unbelastet aus dem Schieber 12 und über die Gehäuseseite 11 vor.Since the contact springs 9 are not yet biased at this time, the end contacts 6 can bring with low placement forces in the Verrastungspositionen. Are all the end contacts 6 of the series mounted and pre-locked in this manner, the slider 12 is inserted in the direction of arrow 18 in the connector housing 5 ( Fig. 3e ) and locked in it. Since the between the two spring legs 9a, 9b located middle spring portion 9c of the contact spring 9 is fixed in the slider 12, now the rigid spring leg 9a is pressed with its contact tip 15a against the end contact 6 ( Fig. 3f ). In this way, an electrical contact between contact spring 9 and end contact 6 comes about, which is characterized by high contact normal forces. The bending soft spring leg 9b is not deformed by the displacement of the slider 12 and still protrudes unloaded from the slider 12 and the housing side 11 before.

Wird der Steckverbinder 1 in Pfeilrichtung 19 auf die Kontaktfläche 2 der Leiterplatte 3 aufgesetzt ( Fign. 3g, 3h ), so können an diesem Federschenkel 9b wie gewünscht deutlich geringere Kräfte an der Direktkontaktierstelle 20 auf der Kontaktfläche 2 wirken als an dem anderen Federschenkel 9a. Indem die für die Kontaktierung der beiden Federschenkel 9a, 9b unterschiedlich optimalen Kontaktkräfte voneinander getrennt und gezielt aufgebracht werden, sind einerseits eine sichere, d.h. mechanisch belastbare Fixierung und elektrische Kontaktierung der in den Steckverbinder 1 eingeführten Endkontakte 6 bzw. elektrischen Leitungen 7 und andererseits die mechanisch schonende Kontaktierung der Kontaktflächen 2 durch die Kontaktfedern 9 des Steckverbinders 1 möglich. Die Stirndichtung 13 liegt auf der Kunststoffumspritzung 4 auf und dichtet so den Steckverbinder 1 gegenüber der Leiterplatte 2 ab.If the connector 1 is placed in the direction of arrow 19 on the contact surface 2 of the circuit board 3 ( FIGS. 3g, 3h ), as can be significantly lower forces acting on the direct contact 20 on the contact surface 2 as on the other spring leg 9a as desired on this spring leg 9b. By the differently optimal for the contacting of the two spring legs 9a, 9b contact forces are separated and selectively applied, on the one hand a safe, ie mechanically resilient fixation and electrical contacting of the inserted into the connector 1 end contacts 6 and electrical lines 7 and on the other hand, the mechanical gentle contacting of the contact surfaces 2 by the contact springs 9 of the connector 1 possible. The front seal 13 rests on the plastic extrusion 4 and thus seals the connector 1 from the printed circuit board 2 from.

Fig. 4 zeigt einen anderen Steckverbinder 101, bei dem die Endkontakte 106 jeweils als ein in Querrichtung 10 biege-elastisches Flachmesser und die elektrischen Kontaktkörper 109 jeweils als ein querbeweglich gelagertes, starres Kontaktzwischenstück ausgebildet sind. In dem in Fig. 4 gezeigten Längsschnitt sind jeweils nur der in seiner Reihe vordere Endkontakt 106 und das in seiner Reihe vordere Kontaktzwischenstück 109 zu sehen. Der in Steckrichtung 8 eingesteckte biege-elastisches Endkontakt106 ist mittels einer nach außen ausgestellten Primärlanze 120 im Steckverbindergehäuse 105 primärverrastet. Das Kontaktzwischenstück 109 ist in einem in Querrichtung 10 flexiblen Dichtungsmittelabschnitt 113a der das Kontaktzwischenstück 109 umgebenden Stirndichtung 113 aufgenommen und dadurch querbeweglich gelagert. Der Endkontakt1 06 kann mittels einer Crimpverbindung oder einer stoffschlüssigen Verbindung mit der elektrischen Leitung 7 verbunden sein. Fig. 4 shows another connector 101, in which the end contacts 106 are each formed as a bending elastic in the transverse direction 10 flat blade and the electrical contact body 109 each as a transversely movably mounted, rigid contact adapter. In the in Fig. 4 shown longitudinal section only the front end contact 106 in its row and the front in its row contact adapter 109 can be seen. The inserted in the insertion direction 8 bending-elastic Endkontakt106 is primarily latched by means of a issued to the outside primary lance 120 in the connector housing 105 . The contact adapter 109 is received in a transverse direction 10 flexible sealant portion 113a of the contact spacer 109 surrounding end seal 113 and thereby transversely movable stored. The Endkontakt1 06 may be connected by means of a crimp or a material connection with the electrical line 7.

Wie in Fig. 5a gezeigt, wird das Kontaktzwischenstück 109 in eine entsprechende Öffnung des Dichtungsmittelabschnitts 113a in Pfeilrichtung 121 eingesteckt. Fig. 5b zeigt die Draufsicht auf die teilweise mit Kontaktzwischenstücken 109 bestückte Stirndichtung 113.As in Fig. 5a is shown, the contact adapter 109 is inserted into a corresponding opening of the sealant portion 113a in the direction of arrow 121 . Fig. 5b shows the top view of the partially equipped with contact spacers 109 front seal 113th

Mit Bezug auf Fig. 6 werden im Folgenden die Bestückung des Steckverbinders 101 mit dem biege-elastischen Flachmesser 106 und die Direktkontaktierung auf der Leiterplatte 3 beschrieben.Regarding Fig. 6 The assembly of the connector 101 with the bending-elastic flat blade 106 and the direct contact on the circuit board 3 will be described below.

Fign. 6a zeigt den Steckverbinder 101 mit dem bereits durch die Leitungsdichtung 14 eingeschobenen biege-elastischen Flachmesser 106, das aber noch nicht am Zwischenkontaktstück 109 vorbeigeschoben ist. Das Zwischenkontaktstück 109 kann seitlich in die Steckbahn des einzusteckenden Flachmessers 106 hineinragen, so dass beim weiteren Einschieben das Zwischenkontaktstück 109 durch das Flachmesser 106 nach außen ausgelenkt wird und an diesem anliegt. FIGS. 6a shows the connector 101 with the already inserted by the line seal 14 bending-elastic flat blade 106, but not yet pushed past the intermediate contact piece 109. The intermediate contact piece 109 can protrude laterally into the plug-in track of the flat blade 106 to be inserted, so that upon further insertion, the intermediate contact piece 109 is deflected outwards by the flat blade 106 and bears against it.

In seiner in Fig. 6b gezeigten Endposition greift das biege-elastische Flachmesser 106 mit seinem vorderen Messerende in eine entsprechende Aussparung 122 des Steckverbindergehäuses 105 ein und ist im Steckverbindergehäuses 105 mittels der Primärlanze 120 primärverrastet, die einen Hinterschnitt 123 des Steckverbindergehäuses 105 in Steckrichtung 8 hintergreift.In his in Fig. 6b shown end position, the bending-elastic flat blade 106 engages with its front end of a knife into a corresponding recess 122 of the connector housing 105 and is primarily latched in the connector housing 105 by means of the primary lance 120, which engages behind an undercut 123 of the connector housing 105 in the insertion direction 8.

Wird der Steckverbinder 101 in Pfeilrichtung 19 auf die Kontaktfläche 2 der Leiterplatte 3 aufgesetzt ( Fign. 6c, 6d ), so wird das über die Gehäuseseite 111 bzw. über die Stirndichtung 113 vorstehende Zwischenkontaktstück 109 in Querrichtung 10 in das Steckverbindergehäuse 105 zurückgeschoben und stützt sich dabei auf dem mittleren Abschnitt des biege-elastischen Flachmessers 106 ab. Dieses wird elastisch in der Mitte nach hinten durchgebogen, wodurch die für die dauerhaft sichere Kontaktierung notwendige Kontaktnormalkraft des Kontaktzwischenstücks 108 auf der Kontaktfläche 2 aufgebracht wird. Die Lagerung des biege-elastischen Flachmessers 106 erfolgt quer zu seiner Längsachse an seinen beiden äußeren Messerenden gehäuseseitig bei 124a, 124b. Eine Durchbiegung des biege-elastischen Flachmessers 106 zwischen diesen beiden Widerlagern 124a, 124b ins Innere des Steckverbindergehäuses 105 hinein ist durch eine entsprechende Gehäuseaussparung möglich. Die Stirndichtung 113 liegt auf der Kunststoffumspritzung 4 auf und dichtet so den Steckverbinder 101 gegenüber der Leiterplatte 2 ab.If the connector 101 is placed in the direction of arrow 19 on the contact surface 2 of the circuit board 3 ( FIGS. 6c, 6d ), so over the housing side 111 and the front seal 113 projecting intermediate contact piece 109 is pushed back in the transverse direction 10 in the connector housing 105 and is supported on the middle portion of the bending-elastic flat blade 106 from. This is elastically bent in the middle to the rear, whereby the contact normal force of the contact interface 108 on the contact surface 2 required for the permanently secure contacting is applied. The bearing of the bending-elastic flat blade 106 takes place transversely to its longitudinal axis at its two outer blade ends on the housing side at 124a, 124b. A bending of the bending-elastic flat blade 106 between these two abutments 124a, 124b into the interior of the connector housing 105 is possible through a corresponding housing recess. The front seal 113 rests on the plastic extrusion coating 4 and thus seals the plug connector 101 with respect to the printed circuit board 2.

Wie in Fign. 7a, 7b gezeigt, ist das Kontaktzwischenstück 109 in dem Dichtungsmittelabschnitt 113a der Stirndichtung 113 auch schwenkbar um eine parallel zur Reihenrichtung der Flachmesser 106 und der Kontaktzwischenstücke 109 verlaufende Achse 125 gelagert und liegt jeweils mit einer um die Achse 125 kreisförmigen Wälzkontur 126 an dem Flachmesser 106 und an der Kontaktfläche 2 an. Bei geringförmigen Verschiebungen der Leiterplatte 2 gegenüber dem Steckverbinder 101 in die eine Richtung +Δx (Fig. 7a) oder in die andere Richtung -Δx (Fig. 7b), z.B. infolge von Schwingungen oder thermisch induzierten Relativbewegungen, kann das Kontaktzwischenstück 109 am Flachmesser 106 und an der Kontaktfläche 2 wälzend abrollen und bleibt somit in mechanischem und damit elektrisch leitendem Kontakt mit dem Flachmesser 106 und mit der Kontaktfläche 2. Durch die Wälzbewegung wird zudem der an den mechanischen Berührstellen und damit auch an den elektrisch bedeutsamen Kontaktstellen der Gesamtanordnung zu erwartende Reibverschleiß, verglichen mit einer gleitenden Relativbewegung der Kontaktpartner, stark reduziert.As in FIGS. 7a, 7b shown, the contact spacer 109 in the sealant portion 113a of the end seal 113 is also pivotally mounted about a parallel to the row direction of the flat blade 106 and the contact spacers 109 extending axis 125 and lies in each case with a circulating about the axis 125 Wälzkontur 126 on the flat blade 106 and on the Contact surface 2 on. For slight displacements of the printed circuit board 2 with respect to the plug connector 101 in the one direction + Δx ( Fig. 7a ) or in the other direction -Δx ( Fig. 7b ), eg as a result of vibrations or thermally induced relative movements, the contact spacer 109 on the flat blade 106 and roll on the contact surface 2 rolling and thus remains in mechanical and thus electrically conductive contact with the flat blade 106 and the contact surface 2. By the rolling motion is also the expected at the mechanical contact points and thus also at the electrically significant contact points of the overall arrangement Reibverschleiß compared with a sliding relative movement of the contact partners, greatly reduced.

Claims (6)

  1. Plug-in connector (101) for making direct electrical contact with contact areas (2) on a printed circuit board (3), comprising at least one electrical end contact (106) of an electrical line (7), which electrical end contact is inserted into the plug-in connector housing (105) in an insertion direction (8), wherein at least one separate electrical contact body (109) is provided, which, for making electrical contact with a contact area (2) of the printed circuit board (3), protrudes in a resilient manner transversely (10) in relation to the end contact (106) beyond a housing side (111) of the plug-in connector housing (105) and, at least when contact is made with the contact area (2), bears in an electrically conductive manner against the end contact (106), characterized in that the electrical contact body is in the form of a rigid contact intermediate piece (109) which is mounted such that it can move transversely.
  2. Plug-in connector according to Claim 1, characterized in that the contact intermediate piece (109) is accommodated in a central section (113a), which is flexible in the transverse direction (10), of an end seal (113) which surrounds the contact intermediate piece (109).
  3. Plug-in connector according to Claim 1 or 2, characterized in that the contact intermediate piece (109), in particular in the central section (113a) of the end seal (113), is mounted such that it can pivot about an axis (125) and, in each case by way of a rolling contour (126) which is circular around the axis (125), bears against the end contact (106) and against the contact area (2).
  4. Plug-in connector according to one of Claims 1 to 3, characterized in that the end contact (106) is of flexurally elastic design in the transverse direction (10) .
  5. Plug-in connector according to one of the preceding claims, characterized in that the inserted end contact (106) is latched in the plug-in connector housing (105).
  6. Plug-in connector according to one of the preceding claims, characterized in that an end seal (113) is provided on the housing side (111) beyond which the contact body (109) projects, the said end seal surrounding the projecting contact body (109) all the way around.
EP12707275.9A 2011-04-06 2012-02-29 Plug-type connector for direct contact-making on a printed circuit board Not-in-force EP2695244B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006867A DE102011006867A1 (en) 2011-04-06 2011-04-06 Connector for direct contacting on a printed circuit board
PCT/EP2012/053438 WO2012136416A1 (en) 2011-04-06 2012-02-29 Plug-type connector for direct contact-making on a printed circuit board

Publications (2)

Publication Number Publication Date
EP2695244A1 EP2695244A1 (en) 2014-02-12
EP2695244B1 true EP2695244B1 (en) 2019-01-23

Family

ID=45808844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12707275.9A Not-in-force EP2695244B1 (en) 2011-04-06 2012-02-29 Plug-type connector for direct contact-making on a printed circuit board

Country Status (6)

Country Link
US (1) US9196983B2 (en)
EP (1) EP2695244B1 (en)
JP (1) JP5680228B2 (en)
KR (1) KR101530903B1 (en)
DE (1) DE102011006867A1 (en)
WO (1) WO2012136416A1 (en)

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Also Published As

Publication number Publication date
JP2014511001A (en) 2014-05-01
KR101530903B1 (en) 2015-07-06
US20140087572A1 (en) 2014-03-27
DE102011006867A1 (en) 2012-10-11
US9196983B2 (en) 2015-11-24
WO2012136416A1 (en) 2012-10-11
JP5680228B2 (en) 2015-03-04
EP2695244A1 (en) 2014-02-12
KR20130135308A (en) 2013-12-10

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