EP1837955B1 - Retaining protector socket for a connector - Google Patents

Retaining protector socket for a connector Download PDF

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Publication number
EP1837955B1
EP1837955B1 EP07000416.3A EP07000416A EP1837955B1 EP 1837955 B1 EP1837955 B1 EP 1837955B1 EP 07000416 A EP07000416 A EP 07000416A EP 1837955 B1 EP1837955 B1 EP 1837955B1
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EP
European Patent Office
Prior art keywords
contact partner
contact
partner
connector
line
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.)
Active
Application number
EP07000416.3A
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German (de)
French (fr)
Other versions
EP1837955A1 (en
Inventor
Rudolf Fekonja
Michael Respondek
Arnold Federer
Kurt Ellensohn
Georg Geismayr
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.)
Hirschmann Automotive GmbH
Bayerische Motoren Werke AG
Original Assignee
Hirschmann Automotive GmbH
Bayerische Motoren Werke AG
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Publication date
Application filed by Hirschmann Automotive GmbH, Bayerische Motoren Werke AG filed Critical Hirschmann Automotive GmbH
Publication of EP1837955A1 publication Critical patent/EP1837955A1/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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case
    • 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
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/93—Coupling part wherein contact is comprised of a wire or brush

Definitions

  • the invention relates to a contact partner (retaining sleeve) for a connector for use in automotive or other applications for electrical connections, which is arranged at the end of an electrical line and accommodated in a connector housing, wherein the contact partner at least one locking tab for fixing and fixing the contact partner in having the connector housing, according to the features of the preamble of claim 1.
  • Contact partners for connectors for use in automotive technology, communications, household appliances or other electrical connections are known.
  • Known contact systems comprising a connector (such as a plug) and a mating connector (such as a socket) are designed so that in addition to the electrical requirements such as the transmission of power and signal current and mechanical requirements such as application of the contact normal forces, electrical contact of the Line (for example by crimp connection or insulation displacement technology), but also support and fixation of the contact partner in a connector housing (in particular its housing chamber) meet.
  • low insertion forces on mating of plug and socket on the one hand and high contact normal forces (for reliable contacting for power or signal current transmission) are in contradiction. If, in fact, low insertion forces are to be enabled, this is accompanied by low contact normal forces and vice versa.
  • a connector is from the DE 199 48 037 A1 known.
  • the advantage of this known connector is the avoidance of a contact partner who is struck at the end of the electrical conductor of the line. For this purpose, it is provided that for receiving the insertion forces when mating plug and coupler, both the end portion of the electrical line and the exposed electrical conductor are defined by the connector housing.
  • an electrical connector having one of the electrical housings with a plurality of contact receiving chambers is known, a plurality of female contacts formed for insertion into the chambers, each contact having a longitudinal axis and a mating portion adapted for mating with a male contact
  • the latching device comprises at least one latching arm which extends substantially parallel to the longitudinal axis of the socket contacts, the latching arm substantially in one Direction is biased and has opposite ends, which are secured to the mating portion of the female contact by elastic tabs which are arranged in a substantially vertical plane to the particular direction, and wherein each fulness the receiving chamber has a reduced cross-sectional area configured to engage and bias the latch arm of a
  • the contact partner consists of a first part for receiving a complementary connector element, which alswelst at least one locking tab, as well as a further part, wherein over the other part of a contact normal force is applied.
  • the contact partner which is housable in a contact chamber (housing chamber) of a connector housing, consists of a first part having the at least one locking tab for fixing and fixing in the connector housing and can receive a mating contact partner.
  • the contact partner is in one piece, with multi-part designs are quite conceivable.
  • the design of the contact partner (also called protective sleeve or similar) is designed so that it assumes a purely mechanical function, such.
  • B. Latch function primary interlock, secondary interlock, etc.
  • the contact partner with its pressure element for applying the contact normal force in the connector housing is stuck in a relatively movement-free connection with the electrical line.
  • the contact partner has a pressure element for generating the high contact normal force in operative connection with the mating contact partner.
  • the pressure element is formed for example by punching or bending or the like of the same or a different material of the contact partner.
  • the contact partner has a primary locking tab and a secondary locking tab and is fixedly connected to the pressure element.
  • the primary locking tab and additionally with the secondary locking tab of the contact partner when inserting into the associated contact chamber of the connector housing in this fixed and fixed.
  • These tabs can also be worked out by punching and / or bending from the contact partner or be formed as an additional component fastened there.
  • the contact partner has a mechanical connection from one end of the contact partner as a crimped connection with which the line is mechanically connected to the contact partner.
  • a crimp connection is therefore of particular advantage for use in mass production, since it represents a permanent connection with conventional crimping tools, and thus the purely mechanical tasks can also be realized under tensile and compressive stresses.
  • the contact partner (retaining sleeve) can be carried out both with and without recording for a longitudinal water seal to the connector housing out. This connection can be made via the cable insulation, via the electrical conductor or even a combination of both.
  • the contact partner according to the invention can be used in single- or multi-pole connectors, with multi-pin connectors one or more rows can be arranged.
  • the electrical lines may be single lines, raster line cables, ribbon cables and the like. Depending on the geometric configuration of the electrical line and the geometric region of the connector housing, in which the line is guided, and also an optionally available sealing element is executed.
  • the contact partner according to the invention can be advantageously produced in a stamping and bending process quickly and inexpensively from a corresponding sheet material one or more parts.
  • FIGS. 1 and 2 show, as far as shown in detail, a contact partner 1 for a connector for use in the electrical connection sector, preferably in automotive engineering.
  • the contact partner 1 is arranged at the end of an electrical line 2.
  • the contact partner 1 has an elongated U-profile (locking part A), for the design of a primary and secondary locking tabs 3, 4 and for receiving and guiding a complementary connector element and a transverse connection of the two side profiles for fixing the electrical line ends and embodiment of a coding device to to ensure a directed insertion.
  • the part (A) has a primary locking tab 3 and according to the invention also has a secondary locking tab 4.
  • the electrical line 2 is inextricably mechanically connected to the contact partner 1.
  • a standard single conductor sealing crimp 6 can be present, which has the effect that the outer jacket of the line 2 is sealed longitudinally watertight with respect to the contact partner 1 if necessary by means of individual conductor sealing.
  • the single conductor sealing crimp 6 can thus be present, which causes the outer jacket of the line 2 to be sealed longitudinally watertight with respect to the contact partner 1.
  • a sealing element 7 is arranged, wherein the sealing element 7 is fixed by the Einzelleiterdichtungscrimp 6 on the outer jacket of the line 2.
  • the sealing element 7 is made of an elastically deformable material (such as rubber, elastomer or the like) and has a smooth continuous surface in the longitudinal direction or a rib shape, as in FIG. 1 is shown.
  • the cross section of the sealing element 7 is larger than the cross section of the contact partner 1, so that the sealing element 7 is permanently pressed together when inserted into the contact chamber.
  • FIG. 2 shows the same contact partner 1 as in FIG. 1 , but in a symbolic view in a housing and a marking of Einzelleiterdichtungscrimp 6, which can be omitted in non-sealed version.
  • the reference numeral 8 denotes a connector housing having a contact chamber for receiving the contact partner 1.
  • FIG. 3 shows the same contact partner 1 in section with a complementary plug connector element 9 and with an electrical conductor 10 of the electrical line 2 and the locking tab 3 and the pressure element (B).
  • the electrical conductor of the electrical line 2 is made flat or has been processed so that it has a flat shape (this is necessary, for example in round conductors). That is, in this case, the electric conductor has been compacted from a round conductor. If the electrical line 2 is a ribbon cable, this is not necessary.
  • the thus prepared or correspondingly designed end region of the electrical conductor thus also forms the contact or contact region to the complementary connector element 9 (for example, a contact pin).
  • the contact partner 1 as described above, a means for the realization of connectors in electrical connection technology, especially for use in the automotive sector for the highest requirements ready, in which the previous contradictions between low insertion forces and high contact normal forces have been brought into line. This means that in the presented connector mechanical and electrical requirements are performed independently. Thus, a cost-effective and freely configurable solution is still available.
  • the retaining sleeve according to the invention can be designed so that it is suitable for both non-sealed and sealed versions with Einzelleiterdichtungsing.
  • the retaining sleeve is designed for a primary and a secondary lock in the plastic housing of the connector.
  • the pressure spring (generally pressure element) is integrated for the contact normal force transmission in the retaining sleeve.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Description

Die Erfindung betrifft einen Kontaktpartner (Halteschutzbuchse) für einen Steckverbinder zur Anwendung in der Automobiltechnik oder sonstige Anwendungen für elektrische Verbindungen, der am Ende einer elektrischen Leitung angeordnet und in einem Steckverbindergehäuse unterbringbar ist, wobei der Kontaktpartner zumindest eine Verriegelungslasche zur Festlegung und Fixierung des Kontaktpartners in dem Steckverbindergehäuse aufweist, gemäß den Merkmalen des Oberbegriffes des Patentanspruches 1.
Kontaktpartner für Steckverbinder zur Anwendung in der Automobiltechnik, Kommunikation, bei Haushaltgeräten oder bei sonstigen elektrischen Steckverbindungen sind bekannt.
Bekannte Kontaktsysteme, aufweisend einen Steckverbinder (wie beispielsweise Stecker) und einen Gegensteckverbinder (wie beispielsweise eine Buchse) sind so ausgeführt, dass sie neben der elektrischen Anforderung wie die Übertragung von Leistungs- und Signalstrom auch mechanische Anforderungen wie z.B. Aufbringen der Kontaktnormalkräfte, elektrische Kontaktierung der Leitung (beispielsweise mittels Crimpverbindung oder Schneidklemmtechnik), aber auch Halterung und Fixierung des Kontaktpartners in einem Steckverbindergehäuse (insbesondere dessen Gehäusekammer) erfüllen. Bei den Anforderungen an bereits bekannte Kontaktsysteme stehen niedrige Steckkräfte beim Zusammenstecken von Stecker und Buchse einerseits und hohe Kontaktnormalkräfte (zwecks zuverlässiger Kontaktierung zur Leistungs- oder Signalstromübertragung) in Widerspruch. Sollen nämlich niedrige Steckkräfte ermöglicht werden, geht dies einher mit niedrigen Kontaktnormalkräften und umgekehrt. Sind dann noch die Kontaktbereiche der Kontaktpartner zur Vermeidung von Korrosionen und damit zur Vermeidung von hohen Übergangswiderständen mit kostenintensiven Oberflächen z.B. aus Gold oder Silber überzogen, können Vorschädigungen an diesen Oberflächen zu kompletten Systemausfällen führen, insbesondere wenn in dem System über das Steckverbindersystem sehr kleine Ströme oder Spannungen geführt werden. Ein Beispiel eines Steckverbinders ist aus der DE 199 48 037 A1 bekannt. Der Vorteil dieser bekannten Steckverbindung ist die Vermeidung eines Kontaktpartners, der am Ende des elektrischen Leiters der Leitung angeschlagen wird. Dazu ist es vorgesehen, dass zur Aufnahme der Steckkräfte beim Zusammenstecken von Stecker und Kuppler sowohl der Endbereich der elektrischen Leitung als auch der freigelegte elektrische Leiter durch das Steckverbindergehäuse festgelegt werden. Durch die Ausführung gemäß Figur 1 der DE 199 48 037 A1 wird eine Zugentlastung der Leitung dadurch erzielt, dass diese von dem Steckverbindergehäuse umgeben, insbesondere umspritzt ist. Eine solche Konstruktion ist allerdings äußerst aufwändig in der Herstellung, da bei dem Umspritzvorgang dafür Sorge getragen werden muss, dass einerseits der Endbereich der Leitung vollständig mit Kunststoff umspritzt wird, wohingegen andererseits der freigelegte elektrische Leiter nur teilweise mit dem Kunststoff des Steckverbindergehäuses umspritzt werden darf, da er einerseits in dem Steckverbindergehäuse ebenfalls festgelegt werden muss, andererseits ein Teil von ihm aber auch frei bleiben muss, damit eine elektrische Kontaktierung mit dem komplementären Endbereich des elektrischen Leiters des Kupplers erfolgen kann. Eine solche Ausführungsform eines Steckverbinders lässt sich nur mit sehr großem Aufwand realisieren, da die Abstimmung beim Umspritzen, insbesondere bei mehrpoligen Steckverbindern, extrem aufwändig und damit äußerst kostenintensiv sein kann.
Aus der nicht vorveröffentlichten DE 10 2006 002 774.4 sind Mittel zur spielfreien Lagefixierung des Endbereiches der Leitung innerhalb der Kammer an dem Steckverbindergehäuse vorgesehen, um den elektrischen Leiter von auf die Leitung wirkenden Kräften zu entkoppeln. Das bedeutet, dass das Steckverbindergehäuse nicht mehr direkt um den Endbereich der Leitung herum angespritzt wird, sondern diese Mittel als zusätzliches Bauteil oder als zusätzliche Bauteile In die Kammer einsetzbar sind und/oder die Mittel an dem Steckverbindergehäuse, das ein- oder mehrteilig ausgebildet ist, angeformt sind. Dadurch Ist bei der Herstellung des Steckverbinders kein direktes Zusammenspiel zwischen der Umspritzung des Steckverbindergehäuses und dem Endbereich der Leitung erforderlich, so dass eine wesentlich einfachere und unkompliziertere Abstimmung der beteiligten Bauteile aufeinander möglich ist, aus der eine deutliche Kostenreduzierung resultiert.
Aus der US-A-5 362 260 ist ein elektrischer Verbinder bekannt, der ein die elektrisches Gehäuse mit einer Mehrzahl von kontaktaufnehmenden Kammern aufweist, eine Mehrzahl von Buchsenkontakten, welche zum Einfügen In die Kammern ausgebildet sind, wobei Jeder Kontakt eine Längsachse und einen Zusammenfügeabschnitt aufweist, welcher zum Zusammenfügen mit einem Steckerkontakt ausgebildet ist, welcher in der Kammer eingefügt Ist, und einer Einrasteinrichtung zum Halten der Buchsenkontakte In den kontaktaufnehmenden Kammern des Gehäuses, bei welchem die Einrasteinrichtung umfasst wenigstens einen Einrastarm, welcher sich im Wesentlichen parallel zur Längsachse der Buchsenkontakte erstreckt, wobei der Einrastarm im Wesentlichen in einer Richtung vorspannbar ist und gegenüberliegende Enden hat, welche am Zusammenfügeabschnitt des Buchsenkontaktes durch elastische Laschen befestigt sind, die in einer im Wesentlichen senkrechten Ebene zu der bestimmten Richtung angeordnet sind, und bei welchem jede kontaktaufnehmende Kammer einen Bereich mit verringertem Querschnitt aufweist, der ausgebildet ist, den Einrastarm eines jeweiligen Buchsenkontaktes senkrecht zur Längsachse des Buchsenkontaktes während des Elnfügens des Buchsenkontaktes in die Kammer in der einen Richtung zu ergreifen und vorzuspannen, und einen Absatz benachbart zum Bereich mit verringertem Querschnitt umfasst, hinter welchem ein Ende des Einrastarmes einrastet, wenn der Buchsenkontakt vollständig In die Kammer eingefügt ist, um das Entfernen des Buchsenkontaktes aus der Kammer zu verhindern.The invention relates to a contact partner (retaining sleeve) for a connector for use in automotive or other applications for electrical connections, which is arranged at the end of an electrical line and accommodated in a connector housing, wherein the contact partner at least one locking tab for fixing and fixing the contact partner in having the connector housing, according to the features of the preamble of claim 1.
Contact partners for connectors for use in automotive technology, communications, household appliances or other electrical connections are known.
Known contact systems, comprising a connector (such as a plug) and a mating connector (such as a socket) are designed so that in addition to the electrical requirements such as the transmission of power and signal current and mechanical requirements such as application of the contact normal forces, electrical contact of the Line (for example by crimp connection or insulation displacement technology), but also support and fixation of the contact partner in a connector housing (in particular its housing chamber) meet. In the case of the requirements of already known contact systems, low insertion forces on mating of plug and socket on the one hand and high contact normal forces (for reliable contacting for power or signal current transmission) are in contradiction. If, in fact, low insertion forces are to be enabled, this is accompanied by low contact normal forces and vice versa. Are then still the contact areas of the contact partners to prevent corrosion and thus To avoid high contact resistances coated with costly surfaces such as gold or silver, previous damage to these surfaces can lead to complete system failures, especially if in the system through the connector system very small currents or voltages are performed. An example of a connector is from the DE 199 48 037 A1 known. The advantage of this known connector is the avoidance of a contact partner who is struck at the end of the electrical conductor of the line. For this purpose, it is provided that for receiving the insertion forces when mating plug and coupler, both the end portion of the electrical line and the exposed electrical conductor are defined by the connector housing. By the execution according to FIG. 1 of the DE 199 48 037 A1 a strain relief of the line is achieved in that it is surrounded by the connector housing, in particular encapsulated. However, such a construction is extremely complex to manufacture, since in the extrusion process must be taken to ensure that on the one hand the end portion of the line is completely encapsulated in plastic, whereas on the other hand, the exposed electrical conductor may only be partially encapsulated with the plastic of the connector housing, on the one hand because it must also be fixed in the connector housing, on the other hand, a part of it must also remain free, so that an electrical contact with the complementary end portion of the electrical conductor of the coupler can take place. Such an embodiment of a connector can be realized only with great effort, since the vote during encapsulation, especially in multi-pin connectors, can be extremely expensive and thus extremely expensive.
From the not pre-published DE 10 2006 002 774.4 means for fixing the end portion of the conduit within the chamber without clearance are provided on the connector housing to decouple the electrical conductor from forces acting on the conduit. This means that the connector housing is no longer molded directly around the end of the line is, but these means can be used as an additional component or as additional components in the chamber and / or the means on the connector housing, which is formed in one or more parts, are integrally formed. As a result, in the manufacture of the connector no direct interaction between the encapsulation of the connector housing and the end portion of the line is required, so that a much simpler and easier coordination of the components involved is possible, resulting in a significant cost reduction.
From the US-A-5,362,260 For example, an electrical connector having one of the electrical housings with a plurality of contact receiving chambers is known, a plurality of female contacts formed for insertion into the chambers, each contact having a longitudinal axis and a mating portion adapted for mating with a male contact In the contact-receiving chambers of the housing, wherein the latching device comprises at least one latching arm which extends substantially parallel to the longitudinal axis of the socket contacts, the latching arm substantially in one Direction is biased and has opposite ends, which are secured to the mating portion of the female contact by elastic tabs which are arranged in a substantially vertical plane to the particular direction, and wherein each kontaktau the receiving chamber has a reduced cross-sectional area configured to engage and bias the latch arm of a respective female contact perpendicular to the longitudinal axis of the female contact during insertion of the female contact into the chamber and a shoulder adjacent to the reduced cross-sectional area beyond which one end of the latch arm engages when the socket contact is fully inserted into the chamber to prevent removal of the socket contact from the chamber.

Aus der US-A-35730625 ist ein Kontaktpartner nach dem Oberbegriff des Anspruchs 1 bekannt. Der Erfindung liegt daher die Aufgabe zu Grunde, die eingangs geschilderten Nachtelle zu vermelden, insbesondere einen Kontaktpartner für einen Steckverbinder bereit zu stellen, bel dem gleichzeitig niedrige Steckkräfte und hohe Kontaktnormalkräfte möglich sind und die die höchsten Anforderungen wie Vibrationen, Temperatur, Schadgas und Medienbeständigkeit sowie Montagefreundlichkelt für die Großserienfertigung erfüllen.
Diese Aufgabe ist durch die Merkmale des Patentanspruches 1 gelöst.
Erfindungsgemäß ist vorgesehen, dass der Kontaktpartner aus einem ersten Teil zur Aufnahme eines komplementären Steckverbinderelementes, der zumindest eine Verriegelungslasche aufwelst, sowie aus einem weiteren Teil besteht, wobei über den weiteren Teil eine Kontaktnormalkraft aufgebracht wird. Das heißt, dass der Kontaktpartner, der in einer Kontaktkammer (Gehäusekammer) eines Steckverbindergehäuses unterbringbar ist, aus einem ersten Teil besteht, der die zumindest eine Verriegelungslasche zwecks Festlegung und Fixierung In dem Steckverbindergehäuse aufweist und der einen Gegenkontaktpartner aufnehmen kann. Bei einer bevorzugten und besonders einfachen Ausgestaltung ist der Kontaktpartner einteilig, wobei mehrteilige Ausführungen durchaus denkbar sind. Die Ausgestaltung des Kontaktpartner (auch Halteschutzbuchse oder ähnlich genannt) ist so ausgeführt, dass er eine rein mechanische Funktion übernimmt, wie z. B. Verrastfunktion (Primärverriegelung, Sekundärverriegelung usw.) Im Steckverbindergehäuse. Auf Grund dieser konstruktiven Ausgestaltung des erfindungsgemäßen Kontaktpartners lassen sich also einerseits die geforderten niedrigen Steckkräfte und damit eine leichte Montierbarkeit und andererseits die erforderlichen hohen Kontaktnormalkräfte, die während der Lebensdauer eines Fahrzeuges unabdingbar sind, in Einklang bringen. Das bedeutet, dass neben sehr niedrigen Steckkräften (nahezu null) gleichzeitig sehr hohe Kontaktnormalkräfte und dadurch eine hochvibrationsfeste, bewegungsfreie sowie robuste Steckverbindung sowohl für kleinste Spannungen und Ströme (insbesondere kleiner als 5 Mikroampere) wie auch für sehr hohe Spannungen und Ströme zuverlässig übertragen werden können. Ein weiterer Vorteil ist der Verzicht auf kostenintensive, beschichtete Oberflächen aus beispielsweise Gold oder Silber, die bei den bekannten Kontaktpartnern erforderlich waren, um etwaigen Kontaktverschleiß möglichst klein zu halten und auch die Steckkräfte zu minimieren und die Steckhäufigkeit zu erhöhen. Durch die erzielbaren sehr hohen Kontaktnormalkräfte werden Relativbewegungen zwischen Kontaktpartner und Gegenkontaktpartner vermieden bzw. nahezu ausgeschlossen, so dass es weder zu Reibkorrosionen noch zu einem Verschleiß und somit zu Übergangwiderstandserhöhungen kommen kann und daher die Lebensdauer und Zuverlässigkeit einer solchen Steckverbindung deutlich verbessert wird, als herkömmliche Steckverbinder.
In Weiterbildung der Erfindung ist vorgesehen, dass der Kontaktpartner mit seinem Andruckelement zur Aufbringung der Kontaktnormalkraft in dem Steckverbindergehäuse festsitzt in relativbewegungsfreier Verbindung mit der elektrischen Leitung. Das heißt, dass der Kontaktpartner ein Andruckelement zur Erzeugung der hohen Kontaktnormalkraft in Wirkverbindung mit dem Gegenkontaktpartner aufweist. Durch dieses Andruckelement können also in vorteilhafter Weise die Kontaktnormalkräfte weiter erhöht werden. Das Andruckelement ist beispielsweise durch Stanzen oder Biegen oder dergleichen aus demselben oder einem anderen Material des Kontaktpartners ausgebildet. Gemäß der Erfindung weist der Kontaktpartner eine Primärverriegelungslasche und eine Sekundärverriegelungslasche auf und ist mit dem Andruckelement fest verbunden. Mit der Primärverriegelungslasche und zusätzlich mit der Sekundärverriegelungslasche wird der Kontaktpartner beim Einsetzen in die zugehörige Kontaktkammer des Steckverbindergehäuses in dieser festgelegt und fixiert. Diese Laschen können ebenfalls durch Stanzen und/oder Biegen aus dem Kontaktpartner herausgearbeitet werden oder als zusätzlicher dort befestigbarer Bestandteil ausgebildet sein.From the US-A-35730625 is a contact partner according to the preamble of claim 1 is known. The invention is therefore based on the object to report the above-described Nachtelle, in particular to provide a contact partner for a connector, the low insertion forces and high contact normal forces are simultaneously possible and the highest requirements such as vibration, temperature, harmful gas and media resistance and Easy to assemble for large series production.
This object is solved by the features of claim 1.
According to the invention, it is provided that the contact partner consists of a first part for receiving a complementary connector element, which aufwelst at least one locking tab, as well as a further part, wherein over the other part of a contact normal force is applied. That is, the contact partner, which is housable in a contact chamber (housing chamber) of a connector housing, consists of a first part having the at least one locking tab for fixing and fixing in the connector housing and can receive a mating contact partner. In a preferred and particularly simple embodiment of the contact partner is in one piece, with multi-part designs are quite conceivable. The design of the contact partner (also called protective sleeve or similar) is designed so that it assumes a purely mechanical function, such. B. Latch function (primary interlock, secondary interlock, etc.) in the connector housing. Due to this structural design of the contact partner according to the invention, therefore, on the one hand, the required low Mating forces and thus ease of mounting and on the other hand, the required high contact normal forces, which are essential during the life of a vehicle to reconcile. This means that in addition to very low insertion forces (almost zero) at the same time very high contact normal forces and thus a hochvibrationsfeste, motion-free and robust connector for both minimum voltages and currents (especially less than 5 microamps) as well as very high voltages and currents can be reliably transmitted , Another advantage is the elimination of costly, coated surfaces of, for example, gold or silver, which were required in the known contact partners to minimize any contact wear as small as possible and also to minimize the insertion forces and increase the plug frequency. The achievable very high contact normal forces relative movements between contact partners and mating contact partners are avoided or almost impossible, so that it can lead to neither Reibkorrosionen nor wear and thus transition resistance increases and therefore the life and reliability of such a connector is significantly improved, as conventional connectors ,
In a further development of the invention, it is provided that the contact partner with its pressure element for applying the contact normal force in the connector housing is stuck in a relatively movement-free connection with the electrical line. This means that the contact partner has a pressure element for generating the high contact normal force in operative connection with the mating contact partner. By this pressure element so the contact normal forces can be further increased in an advantageous manner. The pressure element is formed for example by punching or bending or the like of the same or a different material of the contact partner. According to the invention, the contact partner has a primary locking tab and a secondary locking tab and is fixedly connected to the pressure element. With the primary locking tab and additionally with the secondary locking tab of the contact partner when inserting into the associated contact chamber of the connector housing in this fixed and fixed. These tabs can also be worked out by punching and / or bending from the contact partner or be formed as an additional component fastened there.

In Weiterbildung der Erfindung weist der Kontaktpartner eine von einem Ende des Kontaktpartners eine mechanische Verbindung als Crimpverbindung auf, mit dem die Leitung mit dem Kontaktpartner mechanisch verbunden ist. Eine Crimpverbindung ist für die Anwendung in der Großserie deshalb von besonderem Vorteil, da sie mit herkömmlichen Crimpwerkzeugen eine dauerhafte Verbindung darstellt, und damit die rein mechanischen Aufgaben auch bei Zug- und Druckbeanspruchungen, realisiert werden können. Neben der Crimpverbindung sind aber auch alle vergleichbaren dauerhaltbaren mechanischen Verbindungen zwischen der Leitung und dem Kontaktpartner denkbar. Des Weiteren kann der Kontaktpartner (Halteschutzbuchse) sowohl mit und ohne Aufnahme für eine Längswasserabdichtung zum Steckverbindergehäuse hin ausgeführt werden. Diese Verbindung kann über die Leitungsisolation, über den elektrischen Leiter oder auch einer Kombination aus beiden hergestellt werden.In a development of the invention, the contact partner has a mechanical connection from one end of the contact partner as a crimped connection with which the line is mechanically connected to the contact partner. A crimp connection is therefore of particular advantage for use in mass production, since it represents a permanent connection with conventional crimping tools, and thus the purely mechanical tasks can also be realized under tensile and compressive stresses. In addition to the crimp but also all comparable durable mechanical connections between the line and the contact partner are conceivable. Furthermore, the contact partner (retaining sleeve) can be carried out both with and without recording for a longitudinal water seal to the connector housing out. This connection can be made via the cable insulation, via the electrical conductor or even a combination of both.

Der erfindungsgemäße Kontaktpartner ist einsetzbar bei ein- oder mehrpoligen Steckverbindern, wobei mehrpolige Steckverbinder ein- oder mehrreihig angeordnet werden können. Bei den elektrischen Leitungen kann es sich um Einzelleitungen, Rasterstegleitungen, Flachbandleitungen und dergleichen handeln. Je nach geometrischer Ausgestaltung der elektrischen Leitung wird auch der geometrische Bereich des Steckverbindergehäuses, in den die Leitung hineingeführt wird, und ebenso ein optional vorhandenes Dichtelement ausgeführt.The contact partner according to the invention can be used in single- or multi-pole connectors, with multi-pin connectors one or more rows can be arranged. The electrical lines may be single lines, raster line cables, ribbon cables and the like. Depending on the geometric configuration of the electrical line and the geometric region of the connector housing, in which the line is guided, and also an optionally available sealing element is executed.

Der erfindungsgemäße Kontaktpartner lässt sich in vorteilhafter Weise in einem Stanzbiegeverfahren schnell und kostengünstig aus einem entsprechenden Blechmaterial ein- oder mehrteilig herstellen.The contact partner according to the invention can be advantageously produced in a stamping and bending process quickly and inexpensively from a corresponding sheet material one or more parts.

Ein Ausführungsbeispiel eines erfindungsgemäßen Kontaktpartners, auf das die Erfindung jedoch nicht beschränkt ist, ist im Folgenden an Hand eines abgedichteten Kontaktpartners (optional auch ungedichtet) beschrieben und an Hand der Figuren erläutert.An embodiment of a contact partner according to the invention, to which the invention is not limited, is hereinafter with reference to a sealed Contact partner (optionally also unsealed) described and explained with reference to the figures.

Es zeigen:

Figur 1:
einen erfindungsgemäßen Kontaktpartner in dreidimensionaler Ansicht,
Figur 2:
einen erfindungsgemäßen Kontaktpartner symbolisch in einem Gehäuse,
Figur 3:
einen erfindungsgemäßen Kontaktpartner in Schnittdarstellung mit einem Komplementärsteckverbinderelement.
Show it:
FIG. 1:
a contact partner according to the invention in three-dimensional view,
FIG. 2:
a contact partner according to the invention symbolically in a housing,
FIG. 3:
a contact partner according to the invention in sectional view with a complementary connector element.

Figuren 1 und 2 zeigen, soweit im Einzelnen dargestellt, einen Kontaktpartner 1 für einen Steckverbinder zur Anwendung im elektrischen Verbindungssektor, vorzugsweise in der Automobiltechnik. Der Kontaktpartner 1 ist am Ende einer elektrischen Leitung 2 angeordnet. Der Kontaktpartner 1 weist ein längliches U-Profil (Verriegelungsteil A) auf, zur Ausgestaltung einer Primär- und Sekundärverriegelungslasche 3, 4 sowie zur Aufnahme und Führung eines komplementären Steckverbinderelements und einer Querverbindung der beiden Seitenprofile zur Fixierung der elektrischen Leitungsenden und Ausgestaltung einer Kodiervorrichtung, um ein gerichtetes Stecken zu gewährleisten. Der Teil (A) weist eine Primärverriegelungslasche 3 und gemäß der Erfindung auch eine Sekundärverriegelungslasche 4 auf. Mittels einer Crimpverbindung 5 wird die elektrische Leitung 2 mit dem Kontaktpartner 1 unlösbar mechanisch verbunden. Ausgehend von der Crimpverbindung 5 in Richtung der elektrischen Leitung 2 kann ein standardmäßig herkömmlicher Einzelleiterdichtungscrimp 6 vorhanden sein, der bewirkt, dass der Außenmantel der Leitung 2 gegenüber dem Kontaktpartner 1 im Bedarfsfall mittels Einzelleiterabdichtung längswasserdicht abgedichtet ist. Ausgehend von der Crimpverbindung 5 in Richtung der elektrischen Leitung 2 kann also der Einzelleiterdichtungscrimp 6 vorhanden sein, der bewirkt, dass der Außenmantel der Leitung 2 gegenüber dem Kontaktpartner 1 längswasserdicht abgedichtet ist. FIGS. 1 and 2 show, as far as shown in detail, a contact partner 1 for a connector for use in the electrical connection sector, preferably in automotive engineering. The contact partner 1 is arranged at the end of an electrical line 2. The contact partner 1 has an elongated U-profile (locking part A), for the design of a primary and secondary locking tabs 3, 4 and for receiving and guiding a complementary connector element and a transverse connection of the two side profiles for fixing the electrical line ends and embodiment of a coding device to to ensure a directed insertion. The part (A) has a primary locking tab 3 and according to the invention also has a secondary locking tab 4. By means of a crimped connection 5, the electrical line 2 is inextricably mechanically connected to the contact partner 1. Starting from the crimped connection 5 in the direction of the electrical line 2, a standard single conductor sealing crimp 6 can be present, which has the effect that the outer jacket of the line 2 is sealed longitudinally watertight with respect to the contact partner 1 if necessary by means of individual conductor sealing. Starting from the crimped connection 5 in the direction of the electrical line 2, the single conductor sealing crimp 6 can thus be present, which causes the outer jacket of the line 2 to be sealed longitudinally watertight with respect to the contact partner 1.

Zur Erhöhung der Dichtwirkung ist in besonders vorteilhafter Weise vorgesehen, dass zumindest teilweise zwischen dem Einzelleiterdichtungscrimp 6 und dem Außenmantel der Leitung 2 ein Dichtelement 7 angeordnet ist, wobei das Dichtelement 7 von dem Einzelleiterdichtungscrimp 6 auf dem Außenmantel der Leitung 2 festgelegt ist. Das Dichtelement 7 ist aus einem elastisch verformbaren Material (wie z.B. Gummi, Elastomer oder dergleichen) und weist in Längsrichtung eine glatte durchgehende Oberfläche auf oder eine Rippenform, wie sie in Figur 1 dargestellt ist. Beim Einsetzen des Kontaktpartners 1 in das hier nicht gezeigte Steckverbindergehäuse gelangt die Oberfläche des Dichtelementes 7 an die Innenkontur des Steckverbindergehäuses, so dass dadurch in Längsrichtung die Dichtwirkung erzielt wird. Zur Erhöhung der Dichtwirkung ist vorgesehen, dass der Querschnitt des Dichtelementes 7 größer ist als der Querschnitt des Kontaktpartners 1, so dass das Dichtelement 7 beim Einsetzen in die Kontaktkammer dauerhaft zusammen gedrückt wird.To increase the sealing effect is provided in a particularly advantageous manner that at least partially between the Einzelleiterdichtungscrimp 6 and the outer jacket of the line 2, a sealing element 7 is arranged, wherein the sealing element 7 is fixed by the Einzelleiterdichtungscrimp 6 on the outer jacket of the line 2. The sealing element 7 is made of an elastically deformable material (such as rubber, elastomer or the like) and has a smooth continuous surface in the longitudinal direction or a rib shape, as in FIG. 1 is shown. When inserting the contact partner 1 in the connector housing, not shown here, the surface of the sealing element 7 reaches the inner contour of the connector housing, so that thereby the sealing effect is achieved in the longitudinal direction. To increase the sealing effect, it is provided that the cross section of the sealing element 7 is larger than the cross section of the contact partner 1, so that the sealing element 7 is permanently pressed together when inserted into the contact chamber.

Figur 2 zeigt den gleichen Kontaktpartner 1 wie in Figur 1, allerdings in symbolischer Ansicht in einem Gehäuse sowie einer Kennzeichnung des Einzelleiterdichtungscrimp 6, welcher bei nicht gedichteter Variante entfallen kann. Mit der Bezugsziffer 8 ist ein Steckverbindergehäuse bezeichnet, das eine Kontaktkammer zur Aufnahme des Kontaktpartners 1 aufweist. FIG. 2 shows the same contact partner 1 as in FIG. 1 , but in a symbolic view in a housing and a marking of Einzelleiterdichtungscrimp 6, which can be omitted in non-sealed version. The reference numeral 8 denotes a connector housing having a contact chamber for receiving the contact partner 1.

Figur 3 zeigt den gleichen Kontaktpartner 1 im Schnitt mit einem komplementären Steckerverbinderelement 9 sowie mit einem elektrischen Leiter 10 der elektrischen Leitung 2 und der Verriegelungslasche 3 sowie dem Andruckelement (B). Dabei ist erkennbar, dass der elektrische Leiter der elektrischen Leitung 2 flach ausgestaltet ist oder so bearbeitet wurde, dass er eine flache Gestalt aufweist (dies ist zum Beispiel nötig bei Rundleitern). Das heißt, dass in diesem Fall der elektrische Leiter ausgehend von einem Rundleiter kompaktiert worden ist. Ist die elektrische Leitung 2 eine Flachbandleitung, ist dies nicht erforderlich. Der derart vorbereitete oder entsprechend gestaltete Endbereich des elektrischen Leiters bildet somit auch den Kontakt- bzw. Anlagebereich zu dem komplementären Steckverbinderelement 9 (zum Beispiel ein Kontaktstift). Dieser Bereich wird beaufschlagt von dem Andruckelement B, so dass im gesteckten Zustand der kompaktierte Endbereich der elektrischen Leitung 2 unter Druck an dem komplementären Steckverbinderteil 9 dauerhaft (solange der gesteckte Zustand beibehalten wird) anliegt.
Zusammenfassend stellt also der Kontaktpartner 1, wie vorstehend beschrieben, ein Mittel zur Realisierung von Steckverbindern in der elektrischen Verbindungstechnik, speziell für die Anwendung im Automobilbereich für höchste Anforderungen bereit, bei der die bisherigen Widersprüche zwischen geringen Steckkräften und hohen Kontaktnormalkräften in Einklang gebracht worden sind. Das heißt, dass bei der vorgestellten Steckverbindung mechanische und elektrische Anforderungen unabhängig voneinander ausgeführt werden. Somit steht nach wie vor eine kostengünstige und frei konfektionierbare Lösung zur Verfügung. Des Weiteren kann die erfindungsgemäße Halteschutzbuchse (Kontaktpartner) so ausgeführt werden, dass diese sowohl für nicht gedichtete als auch für gedichtete Varianten mit Einzelleiterdichtungsaufnahme geeignet ist. Ebenso ist die Halteschutzbuchse für eine Primär- und eine Sekundärverriegelung im Kunststoffgehäuse des Steckverbinders ausgeführt. Ebenso wird die Andruckfeder (allgemein Andruckelement) für die Kontaktnormalkraftübertragung in die Halteschutzbuchse integriert. FIG. 3 shows the same contact partner 1 in section with a complementary plug connector element 9 and with an electrical conductor 10 of the electrical line 2 and the locking tab 3 and the pressure element (B). It can be seen that the electrical conductor of the electrical line 2 is made flat or has been processed so that it has a flat shape (this is necessary, for example in round conductors). That is, in this case, the electric conductor has been compacted from a round conductor. If the electrical line 2 is a ribbon cable, this is not necessary. The thus prepared or correspondingly designed end region of the electrical conductor thus also forms the contact or contact region to the complementary connector element 9 (for example, a contact pin). This area is acted upon by the pressure element B, so that in the inserted state of the compacted end portion of the electric wire 2 under pressure on the complementary connector part 9 permanently (as long as the inserted state is maintained) is applied.
In summary, therefore, the contact partner 1, as described above, a means for the realization of connectors in electrical connection technology, especially for use in the automotive sector for the highest requirements ready, in which the previous contradictions between low insertion forces and high contact normal forces have been brought into line. This means that in the presented connector mechanical and electrical requirements are performed independently. Thus, a cost-effective and freely configurable solution is still available. Furthermore, the retaining sleeve according to the invention (contact partner) can be designed so that it is suitable for both non-sealed and sealed versions with Einzelleiterdichtungsaufnahme. Likewise, the retaining sleeve is designed for a primary and a secondary lock in the plastic housing of the connector. Likewise, the pressure spring (generally pressure element) is integrated for the contact normal force transmission in the retaining sleeve.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

AA
Verriegelungsteil im U-Profil (Haltschutzbuchse)Locking part in the U-profile (retaining sleeve)
BB
Andruckelement für die Aufbringung der KontaktnormalkraftPressure element for the application of the contact normal force
1.1.
KontaktpartnerContact partner
2.Second
elektrische Leitungelectrical line
3.Third
PrimärverriegelungslaschePrimary locking tab
4.4th
SekundärverriegelungslascheSecondary locking tab
5.5th
Crimpverbindung für mechanische LeitungsfixierungCrimp connection for mechanical cable fixation
6.6th
EinzelleiterdichtungscrimpEinzelleiterdichtungscrimp
7.7th
Dichtelementsealing element
8.8th.
Steckverbindergehäuseconnector housing
9.9th
Komplementäres SteckverbinderelementComplementary connector element
10.10th
elektrischer Leiterelectrical conductor

Claims (7)

  1. Contact partner (1) for a connector for use especially in automobile technology, which contact partner is arranged at one end of an electric line (2) and can be accommodated in a connector housing (8), wherein the contact partner (1) has at least one primary locking tab for securing the contact partner (1) in the connector housing (8), and the contact partner (1) consists of a first part (A) for receiving a complementary connector element (9), which part has at least one primary locking tab (3), and of a further part (B), via which a normal contact force is applied, and the contact partner is fixedly connected to the pressure element, characterized in that the contact partner (1) has an additional secondary locking tab (4) in part A.
  2. Contact partner (1) according to Claim 1, characterized in that the contact partner (1) together with the pressure element (B) for applying the normal contact force is firmly seated in the connector housing (8) in a connection to the electric line (2) that is free from movement relative thereto.
  3. Contact partner (1) according to Claim 1 or 2, characterized in that the contact partner (1) has a connecting crimp (5), with which a line (2) having an electrical conductor is mechanically connected to the contact partner (1).
  4. Contact partner (1) according to Claim 1, 2 or 3, characterized in that the contact partner (1) has an individual conductor sealing crimp (6) which has for receiving a sealing element (7) for the line (2) and housings (8) for sealed connectors.
  5. Contact partner (1) according to one of the preceding claims, characterized in that the contact partner (1) is produced by punching and bending.
  6. Contact partner (1) according to one of the preceding claims, characterized in that the at least two parts (A, B) of the contact partner (1) are formed integrally, wherein the embodiment of the contact partner can be produced from one or more and different materials.
  7. Contact partner (1) according to one of the preceding Claims 1-5, characterized in that the at least two parts (A, B) of the contact partner (1) can be produced separately from one another and are connectable to one another.
EP07000416.3A 2006-03-24 2007-01-10 Retaining protector socket for a connector Active EP1837955B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006014156A DE102006014156A1 (en) 2006-03-24 2006-03-24 Protective sleeve for a contactless plug-in system

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EP1837955A1 EP1837955A1 (en) 2007-09-26
EP1837955B1 true EP1837955B1 (en) 2018-05-09

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EP (1) EP1837955B1 (en)
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ES (1) ES2683301T3 (en)

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Publication number Priority date Publication date Assignee Title
US7985104B2 (en) 2007-07-05 2011-07-26 Hirschmann Automotive Gmbh Shield sleeve for a plug connector
ES2627662T3 (en) 2007-10-30 2017-07-31 Hirschmann Automotive Gmbh Procedure for the manufacture of a protection and clamping sleeve for a plug connection without contact parts
DE102014213965A1 (en) * 2014-07-17 2016-01-21 Robert Bosch Gmbh Connector element with locking lance and hook element and plug housing
DE102018106646A1 (en) * 2017-03-22 2018-09-27 Hirschmann Automotive Gmbh Contact element for a connector

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GB1497274A (en) * 1975-04-22 1978-01-05 Pressac Ltd Electric connectors or couplings
US5730625A (en) * 1994-05-21 1998-03-24 Delphi Automotive Systems Deutschland Electrical connection for motor vehicles
DE19948037A1 (en) * 1999-10-06 2001-05-17 Bayerische Motoren Werke Ag Electrical connector and system

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US4221446A (en) * 1978-10-02 1980-09-09 The Bendix Corporation Electrical connector assembly
US4379611A (en) * 1980-11-03 1983-04-12 Hughes Aircraft Company Connector with low force socket contact having an integral hood
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US5362260A (en) * 1993-08-03 1994-11-08 Molex Incorporated Electrical connector with improved terminal latching system
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US3581271A (en) * 1969-05-07 1971-05-25 Bunker Kame Corp The Unit having contact protective means
GB1497274A (en) * 1975-04-22 1978-01-05 Pressac Ltd Electric connectors or couplings
US5730625A (en) * 1994-05-21 1998-03-24 Delphi Automotive Systems Deutschland Electrical connection for motor vehicles
DE19948037A1 (en) * 1999-10-06 2001-05-17 Bayerische Motoren Werke Ag Electrical connector and system

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DE102006014156A1 (en) 2007-09-27
ES2683301T3 (en) 2018-09-26
US7338313B2 (en) 2008-03-04
EP1837955A1 (en) 2007-09-26
US20070298648A1 (en) 2007-12-27

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