EP3117490A1 - Polarity-reversal protection means - Google Patents

Polarity-reversal protection means

Info

Publication number
EP3117490A1
EP3117490A1 EP15712784.6A EP15712784A EP3117490A1 EP 3117490 A1 EP3117490 A1 EP 3117490A1 EP 15712784 A EP15712784 A EP 15712784A EP 3117490 A1 EP3117490 A1 EP 3117490A1
Authority
EP
European Patent Office
Prior art keywords
walls
connector
coding
reverse polarity
shaped
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.)
Granted
Application number
EP15712784.6A
Other languages
German (de)
French (fr)
Other versions
EP3117490B1 (en
Inventor
Jürgen Lappöhn
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.)
ERNI Production and Co KG GmbH
Original Assignee
ERNI Production and Co KG 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 ERNI Production and Co KG GmbH filed Critical ERNI Production and Co KG GmbH
Publication of EP3117490A1 publication Critical patent/EP3117490A1/en
Application granted granted Critical
Publication of EP3117490B1 publication Critical patent/EP3117490B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01R13/64—Means for preventing incorrect coupling
    • 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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • H01R13/6456—Means for preventing incorrect coupling by exchangeable elements on case or base comprising keying elements at different positions along the periphery of the connector

Definitions

  • the invention relates to a reverse polarity protection for connectors with two plug-in connector parts according to the preamble of independent claim 1.
  • a reverse polarity protection is very often provided today, the one connector part having a first coding element and the other connector part having a second coding element.
  • These coding elements are arranged on the two connector parts so that a connection is possible only in a desired position of the connector parts.
  • Such connectors are also used in harsh environments, for example in automobiles or in aircraft, such as helicopters. In these applications, significant vibration loads and vibrations can occur, which can lead to unintentional release of the can cause the connector parts and thus contact interruptions. Therefore, such connectors also have locking elements to prevent inadvertent release. But even with these locking elements, which effectively prevent inadvertent release of the two connector parts, can not be ruled out that at considerable Ruttel- and vibration loads rub the contact elements of the connector parts together and damaged due to this continuous friction with corresponding vibration frequencies contact elements of the connector parts, to towards an irreversible interruption of the electrical contact.
  • the reverse polarity protection according to the invention for connectors with the features of claim 1 not only allows in a very advantageous and effective way reverse polarity protection, but at the same time a fixation of the two connector parts together, such that even with significant vibration and vibration loads movement of the two connector parts relative to each other is practically excluded.
  • the big advantage of this is that no additional devices must be provided on the connector parts that prevent such relative movement of the connector parts to each other in significant vibration and vibration loads. Rather, it is possible by the configuration of a coding as extending in the insertion direction groove with trapezoidal cross section and the other coding element as extending in the insertion direction U-shaped coding rib with elastically bendable U-shaped walls possible to generate a defined clamping force of the coding rib in the coding groove.
  • the polarity reversal protection therefore simultaneously constitutes a device which effects a relative movement of the two connector parts effectively prevents each other even with significant Ruttel- and vibration loads.
  • the U-shaped walls hereinafter also referred to briefly as U-walls
  • the U-shaped Codierrippe which rise vertically, are deformed elastically due to the trapezoidal formation of the groove, by virtue of the oblique arrangement of the walls pressed inwards and exert a force on the trapezoidally arranged walls.
  • Due to the elastic design of the U-walls also a pulling apart of the two connector parts is possible under exercise of a predetermined pull-out force.
  • the U-walls are bent back after loosening the two connector parts due to their elasticity.
  • the measures listed in the dependent claims advantageous refinements of the reverse polarity protection specified in the independent claim 1 are possible.
  • the force with which the U-walls act on the trapezoidally inclined walls of the groove due to the length of the U-walls are defined in the insertion direction.
  • Long U-walls, practically over the entire groove, allow for a given thickness of the U-walls a greater force than short U-walls.
  • the U-walls can be formed over the substantially entire length in the insertion direction, which considerably contributes to the stability of the U-walls, as they can be connected, for example on its side facing away from the plug side ßerrenz the groove, for example with a housing part of the connector part, which would not be possible with a shorter design of the U-walls, as these for the realization of Reverse polarity protection must always start on the mating side of the connector part and so can not extend over the entire length of the groove.
  • the U-shaped Codierrippe has at its front, plug-side end an area which is trapezoidal in such a way that its externa ßere trapezoidal shape is adapted to the trapezoidal groove.
  • This front trapezoidal region which is preferably designed as a trapezoidal web, is preferably connected to the U-shaped walls of the U-shaped Codierrippe.
  • the U-shaped arranged walls are thus connected at the front, plug-side end with the trapezoidal web, at its rear end facing away from the plug side, they can be connected to a housing part of the connector part.
  • the front trapezoidal portion of the Codierrippe allows higher resistance forces in incorrect arrangement of the connector parts relative to each other. It also improves the stability and resistance to damage to the U-walls characterized in that they are connected on two sides with a housing part, namely at the front, plug-side end with the trapezoidal web, which is part of a connector housing, and at the rear of the Web side remote end with a corresponding housing part, such as a housing wall of the connector housing.
  • sliding areas are arranged between the trapezoidal web and the U-shaped walls in the insertion direction. These sliding areas allow the coding rib to slip in the coding groove with the correct insertion of the two connector parts into each other. They also promote the Nachinnenbiegen the U-shaped walls arranged in the trapezoidal groove during the insertion process.
  • the groove with a trapezoidal cross-section is arranged in an advantageous manner in a connector housing of a connector part and the coding rib is preferably arranged on the connector housing of the other connector part.
  • the coding rib is formed integrally with the connector housing.
  • the U-shaped walls taper towards the housing wall at their ends remote from the plug-in side, at which they are connected to a housing wall. This facilitates a complete insertion of the two connector parts into each other.
  • Figure 1 is an isometric, partially broken away view of a connector part with a coding groove designed as a trapezoidal cross-section Codierelement.
  • FIG. 2 is an isometric view, partly broken away, of a second connector part corresponding to the connector part shown in FIG. 1 with a coding element in the form of a coding rib, which is U-shaped;
  • FIG. Fig. 3 is a sectional view of the two nested connector parts and
  • Fig. 4 is a in Figure 3 with IV designated enlargement.
  • a connector shown in the figures, has two plug-in connector parts plugged into one another.
  • a first connector part 100 is formed for example as a male connector with a housing 105 in which a plug-in opening 106 is provided, in turn, the blade contacts 107 are arranged.
  • This connector part 100 is arranged, for example, on a (not shown) printed circuit board, for which corresponding SMD contact elements 108 are provided.
  • a connector part 200 suitable for this connector part 100, shown in FIG. 2, is designed as a spring strip. It has a housing 205, in which openings 207 are arranged, in which in turn known per se spring elements are arranged, which are not visible in Fig. 2.
  • the connector part 100 shown in Fig. 1 has a first coding element 1 10 in the form of a groove with trapezoidal walls 120
  • the connector part shown in Fig. 2 has a second coding element 210 which is formed as Codierrippe, which in its front region with a web 21 1 with trapezoidal side walls 215 completes.
  • This trapezoidal web 21 1 has dimensions that are adapted to the trapezoidal groove 1 10 so that a telescoping of the second coding element 210 in the first coding element 1 10, with correct arrangement of the connector parts relative to each other is possible.
  • the coding rib 210 is U-shaped in its rear, the plug-side facing away from the U-shaped walls, hereinafter called U-walls 212, 213 short.
  • U-walls 212, 213 open plug-side into the trapezoidal web 21 1 and are connected thereto. They open on the side remote from the plug side in a housing wall 230, where they are connected to the housing wall 230 here.
  • the transition from the trapezoidal web 21 1 with its sloping walls 215 in the vertical U-walls 212, 213 carried by oblique sliding portions 219, the sliding in of the U-walls 212, 213 in the trapezoidal groove 1 10 with their oblique standing walls 120 allows.
  • FIG. 3 is a sectional view of the two nested connector parts 100, 200.
  • the U-shaped Codierrippe 210 In the upper part of the U-shaped Codierrippe 210 is shown with their U-walls 212, 213, which in the groove 1 10 with trapezoidal gene walls 120 is arranged.
  • the insertion process is shown schematically.
  • Fig. 4a shows the groove 1 10 with trapezoidal walls 120.
  • the U-walls 212, 213 of the U-shaped Codierrippe 210 are perpendicular, so that an overlap O occurs. This overlap O is given before the insertion process.
  • the U-walls 212, 213 of the coding rib 210 are elastically bent inwardly in the direction of the arrows denoted by B and are after the connection to the trapezoidal, that is inclined walls 120 first coding element 1 10. This condition is shown in Fig. 4b. Due to their elastic deformability, the two U-walls 212, 213 exert a force F directed in the direction of the inclined, trapezoidal walls 120, which enables a fixation of the two connector parts 100, 200 to one another.
  • This force F can be adjusted in principle over the length of the U-walls 212, 213 in the insertion direction or even better over the thickness of the U-walls 212, 213 to a certain extent. It can either be calculated or determined on the basis of appropriate experimental investigations.
  • the walls 212, 213 have recesses 260 at their base, which may be semicircular, for example (Fig. 4a, b).

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

Polarity-reversal protection means for plug connectors having two plug connector parts (100, 200) which can be plugged one into the other, wherein one plug connector part (100) has a first coding element, and the other plug connector part (200) has a second coding element, and wherein the two coding elements are matched to one another such that they allow plug connection when the plug connector parts (100, 200) are arranged correctly, and prevent plug connection when the plug connector parts (100, 200) are not arranged correctly, characterized in that one coding element is a groove (110) which runs in the plugging direction and has a trapezoidal cross section, and in that the other coding element is a coding rib (210) which runs in the plugging direction and is of U-shaped design with walls (212, 213) which are arranged such that they can be elastically bent in a U shape.

Description

Verpolunqsschutz  Verpolunqsschutz
Die Erfindung betrifft einen Verpolungsschutz für Steckverbinder mit zwei ineinander steckbaren Steckverbinderteilen nach der Gattung des unabhängigen Anspruchs 1 . The invention relates to a reverse polarity protection for connectors with two plug-in connector parts according to the preamble of independent claim 1.
Stand der Technik State of the art
Um eine Verpolung durch eine Fehlsteckung zweier Steckverbinderteile zu verhindern, ist heute sehr oft ein Verpolungsschutz vorgesehen, wobei das eine Steckverbinderteil ein erstes Codierelement und das andere Steckverbinderteil ein zweites Codierelement aufweisen. Diese Codierelemente sind an den beiden Steckverbinderteilen so angeordnet, dass eine Steckung nur in einer gewünschten Position der Steckverbinderteile möglich ist. Eine falsche Anordnung des einen Steckverbinderteils gegenüber dem anderen, beispielsweise eine Drehung um 180°, die zu einer Verpolung führen würde, wird dagegen von einem solchen Verpolungsschutz wirkungsvoll verhindert. In order to prevent a reverse polarity due to a mismatch of two connector parts, a reverse polarity protection is very often provided today, the one connector part having a first coding element and the other connector part having a second coding element. These coding elements are arranged on the two connector parts so that a connection is possible only in a desired position of the connector parts. An incorrect arrangement of one connector part relative to the other, for example, a rotation through 180 °, which would lead to a reverse polarity, however, is effectively prevented by such Verpolungsschutz.
Derartige Steckverbinder werden auch in rauen Umgebungen eingesetzt, beispielsweise in Automobilen oder in Flugzeugen, beispielsweise Hubschraubern. Bei diesen Anwendungsfällen kann es zu erheblichen Rüttelbelastungen und Vibrationen kommen, die zu einem unbeabsichtigten Lösen der bei- den Steckverbinderteile und damit zu Kontaktunterbrechungen führen können. Derartige Steckverbinder weisen deshalb auch Verriegelungselemente auf, um ein unbeabsichtigtes Lösen zu verhindern. Aber auch mit diesen Verriegelungselementen, die zwar ein unbeabsichtigtes Lösen der beiden Steckverbinderteile wirkungsvoll verhindern, kann nicht ausgeschlossen werden, dass bei erheblichen Ruttel- und Vibrationsbelastungen die Kontaktelemente der Steckverbinderteile aneinander reiben und aufgrund dieser kontinuierlichen Reibung mit entsprechenden Vibrationsfrequenzen Kontaktelemente der Steckverbinderteile beschädigt werden, bis hin zu einer irreversiblen Unterbrechung des elektrischen Kontaktes. Such connectors are also used in harsh environments, for example in automobiles or in aircraft, such as helicopters. In these applications, significant vibration loads and vibrations can occur, which can lead to unintentional release of the can cause the connector parts and thus contact interruptions. Therefore, such connectors also have locking elements to prevent inadvertent release. But even with these locking elements, which effectively prevent inadvertent release of the two connector parts, can not be ruled out that at considerable Ruttel- and vibration loads rub the contact elements of the connector parts together and damaged due to this continuous friction with corresponding vibration frequencies contact elements of the connector parts, to towards an irreversible interruption of the electrical contact.
Offenbarung der Erfindung Disclosure of the invention
Vorteile der Erfindung Advantages of the invention
Der erfindungsgemäße Verpolungsschutz für Steckverbinder mit den Merkmalen des Anspruchs 1 ermöglicht nicht nur auf sehr vorteilhafte und wirkungsvolle Weise einen Verpolungsschutz, sondern gleichzeitig auch eine Fixierung der beiden Steckverbinderteile aneinander, derart, dass auch bei erheblichen Rüttel- und Vibrationsbelastungen eine Bewegung der beiden Steckverbinderteile relativ zueinander praktisch ausgeschlossen ist. Der große Vorteil hierbei ist, dass keine zusätzlichen Einrichtungen an den Steckverbinderteilen vorgesehen sein müssen, die eine solche Relativbewegung der Steckverbinderteile zueinander bei erheblichen Rüttel- und Vibrationsbelastungen verhindern. Es wird vielmehr durch die Ausgestaltung des einen Codierelements als in Steckrichtung verlaufende Nut mit trapezförmigem Querschnitt und des anderen Codierelements als in Steckrichtung verlaufende U-förmige Codierrippe mit elastisch biegbaren U-förmig angeordneten Wänden möglich, eine definierte Klemmkraft der Codierrippe in der Codiernut zu erzeugen. Der Verpolungsschutz stellt also bei der erfindungsgemäßen Lösung gleichzeitig auch eine Einrichtung dar, die eine Relativbewegung der beiden Steckverbinderteile zueinander selbst bei erheblichen Ruttel- und Vibrationsbelastungen wirkungsvoll verhindert. The reverse polarity protection according to the invention for connectors with the features of claim 1 not only allows in a very advantageous and effective way reverse polarity protection, but at the same time a fixation of the two connector parts together, such that even with significant vibration and vibration loads movement of the two connector parts relative to each other is practically excluded. The big advantage of this is that no additional devices must be provided on the connector parts that prevent such relative movement of the connector parts to each other in significant vibration and vibration loads. Rather, it is possible by the configuration of a coding as extending in the insertion direction groove with trapezoidal cross section and the other coding element as extending in the insertion direction U-shaped coding rib with elastically bendable U-shaped walls possible to generate a defined clamping force of the coding rib in the coding groove. In the solution according to the invention, the polarity reversal protection therefore simultaneously constitutes a device which effects a relative movement of the two connector parts effectively prevents each other even with significant Ruttel- and vibration loads.
Dies wird dadurch realisiert, dass die U-förmig angeordneten Wände, nachfolgend auch kurz als U-Wände bezeichnet, der U-förmigen Codierrippe, die senkrecht aufragen, aufgrund der trapezförmigen Ausbildung der Nut elastisch deformiert werden, indem sie aufgrund der schrägen Anordnung der Wände nach innen gedrückt werden und eine Kraft auf die trapezförmig angeordneten Wände ausüben. Hierdurch wird eine Fixierung der beiden Steckverbinderteile ineinander im miteinander gesteckten Zustand ermöglicht. Aufgrund der elastischen Ausbildung der U-Wände ist auch ein Auseinanderziehen der beiden Steckverbinderteile unter Ausübung einer vorgebbaren Auszugskraft möglich. Die U- Wände werden nach dem Lösen der beiden Steckverbinderteile aufgrund ihrer Elastizität wieder zurückgebogen. Bei einem erneuten Steckvorgang werden sie wiederum aufgrund der Schrägstellung der trapezförmig angeordneten Wände nach innen gebogen und üben aufgrund ihrer Elastizität eine in Richtung der trapezförmigen Wände ausgeübte Kraft aus, die eine Klemmung der Codierrippe in der trapezförmigen Nut bewirkt. This is realized in that the U-shaped walls, hereinafter also referred to briefly as U-walls, the U-shaped Codierrippe, which rise vertically, are deformed elastically due to the trapezoidal formation of the groove, by virtue of the oblique arrangement of the walls pressed inwards and exert a force on the trapezoidally arranged walls. As a result, a fixation of the two connector parts in one another in the mated condition is made possible. Due to the elastic design of the U-walls also a pulling apart of the two connector parts is possible under exercise of a predetermined pull-out force. The U-walls are bent back after loosening the two connector parts due to their elasticity. In a re-plugging operation, they are in turn bent inwardly due to the inclination of the trapezoidally arranged walls and exercise due to their elasticity exerted in the direction of the trapezoidal walls force which causes a clamping of the Codierrippe in the trapezoidal groove.
Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des in dem unabhängigen Anspruch 1 angegebenen Verpolungsschutzes möglich. So kann rein prinzipiell die Kraft, mit der die U-Wände auf die trapezförmig schräg gestellten Wände der Nut wirken aufgrund der Länge der U-Wände in Steckrichtung definiert werden. Lange U- Wände, praktisch über die gesamte Nut hinweg, ermöglichen bei vorgegebener Dicke der U-Wände eine größere Kraft als kurze U-Wände. Gemäß einer besonders vorteilhaften Ausführungsform ist jedoch vorgesehen, die Kraft über die Dicke der U-Wände zu definieren und damit die Dicke der U- Wände an eine vorgebbare Auszugskraft des einen Steckverbinderteils aus dem anderen anzupassen. Auf diese Weise können die U- Wände über die im Wesentlichen gesamte Länge in Steckrichtung ausgebildet sein, was erheblich zur Stabilität der U- Wände beiträgt, da sie insbesondere auch auf ihrer der Steckseite abgewandten Seite au ßerhalb der Nut beispielsweise mit einem Gehäuseteil des Steckverbinderteils verbunden sein können, was bei einer kürzeren Ausbildung der U- Wände nicht möglich wäre, da diese zur Realisierung des Verpolungsschutzes immer auf der Steckseite des Steckverbinderteils beginnen müssen und sich so nicht über die gesamte Länge der Nut erstrecken können. The measures listed in the dependent claims advantageous refinements of the reverse polarity protection specified in the independent claim 1 are possible. Thus, in principle, the force with which the U-walls act on the trapezoidally inclined walls of the groove due to the length of the U-walls are defined in the insertion direction. Long U-walls, practically over the entire groove, allow for a given thickness of the U-walls a greater force than short U-walls. According to a particularly advantageous embodiment, however, it is provided to define the force across the thickness of the U-walls and thus adapt the thickness of the U-walls to a predetermined pull-out force of a connector part from the other. In this way, the U-walls can be formed over the substantially entire length in the insertion direction, which considerably contributes to the stability of the U-walls, as they can be connected, for example on its side facing away from the plug side ßerhalb the groove, for example with a housing part of the connector part, which would not be possible with a shorter design of the U-walls, as these for the realization of Reverse polarity protection must always start on the mating side of the connector part and so can not extend over the entire length of the groove.
Eine besonders vorteilhafte und bevorzugte Ausführungsform sieht vor, dass die U-förmig ausgebildete Codierrippe an ihrem vorderen, steckseitigen Ende einen Bereich aufweist, der trapezförmig ausgebildet ist und zwar derart, dass seine äu ßere trapezförmige Gestalt an die trapezförmige Nut angepasst ist. Dieser vordere trapezförmige Bereich, der bevorzugt als trapezförmiger Steg ausgebildet ist, ist vorzugsweise mit den U-förmigen Wänden der U-förmigen Codierrippe verbunden. Die U-förmigen angeordneten Wände sind also am vorderen, steckseitigen Ende mit dem trapezförmigen Steg verbunden, an ihrem hinteren, der Steckseite abgewandten Ende können sie mit einem Gehäuseteil des Steckverbinderteils verbunden sein. Auf diese Weise wird nicht nur der Verpolungsschutz widerstandsfähiger, da der vordere trapezförmige Bereich der Codierrippe höhere Widerstandskräfte bei nicht korrekter Anordnung der Steckverbinderteile relativ zueinander ermöglicht. Es wird darüber hinaus auch die Stabilität und Widerstandsfähigkeit gegenüber Beschädigungen der U- Wände dadurch verbessert, dass diese an zwei Seiten mit einem Gehäuseteil verbunden sind, nämlich am vorderen, steckseitigen Ende mit dem trapezförmigen Steg, der Teil eines Steckverbindergehäuses ist, und am hinteren der Stegseite abgewandten Ende mit einem entsprechenden Gehäuseteil, beispielsweise einer Gehäusewand des Steckverbindergehäuses. A particularly advantageous and preferred embodiment provides that the U-shaped Codierrippe has at its front, plug-side end an area which is trapezoidal in such a way that its externa ßere trapezoidal shape is adapted to the trapezoidal groove. This front trapezoidal region, which is preferably designed as a trapezoidal web, is preferably connected to the U-shaped walls of the U-shaped Codierrippe. The U-shaped arranged walls are thus connected at the front, plug-side end with the trapezoidal web, at its rear end facing away from the plug side, they can be connected to a housing part of the connector part. In this way, not only the reverse polarity protection is more resistant, since the front trapezoidal portion of the Codierrippe allows higher resistance forces in incorrect arrangement of the connector parts relative to each other. It also improves the stability and resistance to damage to the U-walls characterized in that they are connected on two sides with a housing part, namely at the front, plug-side end with the trapezoidal web, which is part of a connector housing, and at the rear of the Web side remote end with a corresponding housing part, such as a housing wall of the connector housing.
Bei einer besonders bevorzugten Ausführungsform ist dabei vorgesehen, dass zwischen dem trapezförmigen Steg und den U-förmig angeordneten Wänden in Steckrichtung jeweils schräg verlaufende Gleitbereiche angeordnet sind. Diese Gleitbereiche ermöglichen ein Hineingleiten der Codierrippe in die Codiernut bei korrekter Steckung der beiden Steckverbinderteile ineinander. Sie fördern auch das Nachinnenbiegen der U-förmig angeordneten Wände in der trapezförmigen Nut während des Steckvorgangs. In a particularly preferred embodiment, it is provided that in each case obliquely extending sliding areas are arranged between the trapezoidal web and the U-shaped walls in the insertion direction. These sliding areas allow the coding rib to slip in the coding groove with the correct insertion of the two connector parts into each other. They also promote the Nachinnenbiegen the U-shaped walls arranged in the trapezoidal groove during the insertion process.
Die Nut mit trapezförmigem Querschnitt ist dabei in vorteilhafter Weise in einem Steckverbindergehäuse des einen Steckverbinderteils angeordnet und die Codierrippe ist bevorzugt am Steckverbindergehäuse des anderen Steckverbinderteils angeordnet. Bevorzug ist die Codierrippe einstückig mit dem Steckverbindergehäuse ausgebildet. The groove with a trapezoidal cross-section is arranged in an advantageous manner in a connector housing of a connector part and the coding rib is preferably arranged on the connector housing of the other connector part. Favor the coding rib is formed integrally with the connector housing.
Dabei ist vorteilhafter Weise vorgesehen, dass sich die U-förmigen Wände an ihren, der Steckseite abgewandten Enden an denen sie mit einer Gehäusewand verbunden sind, zur Gehäusewand hin verjüngen. Dies erleichtert ein vollständiges Hineinschieben der beiden Steckverbinderteile ineinander. In this case, it is advantageously provided that the U-shaped walls taper towards the housing wall at their ends remote from the plug-in side, at which they are connected to a housing wall. This facilitates a complete insertion of the two connector parts into each other.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.
Es zeigen Show it
Fig. 1 eine isometrische, teilweise weggebrochene Darstellung eines Steckverbinderteils mit einem als Codiernut mit trapezförmigen Querschnitt ausgebildeten Codierelement; Figure 1 is an isometric, partially broken away view of a connector part with a coding groove designed as a trapezoidal cross-section Codierelement.
Fig. 2 eine isometrische, teilweise weggebrochene Darstellung eines mit dem in Fig. 1 dargestellten Steckverbinderteils korrespondierenden zweiten Steckverbinderteils mit einem Codierelement in Form einer Codierrippe, die U-förmig ausgebildet ist; Fig. 3 eine Schnittdarstellung der beiden ineinander gesteckten Steckverbinderteile und FIG. 2 is an isometric view, partly broken away, of a second connector part corresponding to the connector part shown in FIG. 1 with a coding element in the form of a coding rib, which is U-shaped; FIG. Fig. 3 is a sectional view of the two nested connector parts and
Fig. 4 eine in Figur 3 mit IV bezeichnete Ausschnittvergrößerung. Ausführunqsformen der Erfindung Fig. 4 is a in Figure 3 with IV designated enlargement. Embodiments of the invention
Ein Steckverbinder, dargestellt in den Figuren, weist zwei ineinander steckbare Steckverbinderteile auf. Ein erstes Steckverbinderteil 100 ist beispielsweise als Messerleiste ausgebildet mit einem Gehäuse 105, in dem eine Stecköffnung 106 vorgesehen ist, in der wiederum Messerkontakte 107 angeordnet sind. Dieses Steckverbinderteil 100 ist beispielsweise auf einer (nicht gezeigten) Leiterplatte angeordnet, wofür entsprechende SMD-Kontaktelemente 108 vorgesehen sind. A connector, shown in the figures, has two plug-in connector parts plugged into one another. A first connector part 100 is formed for example as a male connector with a housing 105 in which a plug-in opening 106 is provided, in turn, the blade contacts 107 are arranged. This connector part 100 is arranged, for example, on a (not shown) printed circuit board, for which corresponding SMD contact elements 108 are provided.
Ein zu diesem Steckverbinderteil 100 passendes Steckverbinderteil 200, dargestellt in Fig. 2, ist als Federleiste ausgebildet. Es weist ein Gehäuse 205 auf, in dem Öffnungen 207 angeordnet sind, in welchen wiederum an sich bekannte Federelemente angeordnet sind, die in Fig. 2 nicht sichtbar sind. A connector part 200 suitable for this connector part 100, shown in FIG. 2, is designed as a spring strip. It has a housing 205, in which openings 207 are arranged, in which in turn known per se spring elements are arranged, which are not visible in Fig. 2.
Das in Fig. 1 dargestellte Steckverbinderteil 100 weist ein erstes Codierelement 1 10 in Form einer Nut mit trapezförmigen Wänden 120 auf, das in Fig. 2 dargestellte Steckverbinderteil weist ein zweites Codierelement 210 auf, welches als Codierrippe ausgebildet ist, die in ihrem vorderen Bereich mit einem Steg 21 1 mit trapezförmigen Seitenwänden 215 abschließt. Dieser trapezförmige Steg 21 1 weist Maße auf, die an die trapezförmige Nut 1 10 so ange- passt sind, dass ein Ineinanderschieben des zweiten Codierelements 210 in das erste Codierelement 1 10, bei korrekter Anordnung der Steckverbinderteile relativ zueinander möglich ist. Bei nicht korrekter Anordnung der Steckverbinderteile 100, 200 ist dagegen eine Steckung nicht möglich, da die Codierrippe 210 beispielsweise auf eine Gehäusewand des Gehäuses 100 auftrifft und so eine Steckung verhindert wird. Insoweit wird durch die Nut 1 10 und die Codierrippe 210 ein Verpolungsschutz realisiert. Gleichzeitig erfüllt dieser Verpolungsschutz aber noch eine weitere, sehr wichtige Funktion. Er dient nämlich der Fixierung der beiden Steckverbinderteile 100, 200 aneinander und zwar in der Weise, dass auch bei einer hohen Vibrations- oder Rüttelbelastung der Steckverbindung ein Bewegen der Steckverbinderteile 100, 200 relativ zueinander ausgeschlossen ist. Hierdurch wird sehr wirkungsvoll verhindert, dass die Kontaktelemente, also die Messerkontakte 107 und die Federkontakte, aufgrund von Vibrationen aneinander reiben und es so zu Beschädigungen der Kontakte bis hin zur Kontaktunterbrechung kommen kann. The connector part 100 shown in Fig. 1 has a first coding element 1 10 in the form of a groove with trapezoidal walls 120, the connector part shown in Fig. 2 has a second coding element 210 which is formed as Codierrippe, which in its front region with a web 21 1 with trapezoidal side walls 215 completes. This trapezoidal web 21 1 has dimensions that are adapted to the trapezoidal groove 1 10 so that a telescoping of the second coding element 210 in the first coding element 1 10, with correct arrangement of the connector parts relative to each other is possible. In case of incorrect arrangement of the connector parts 100, 200, however, a plug is not possible because the Codierrippe 210, for example, on a housing wall of the housing 100 impinges and so a mating is prevented. In that regard, through the groove 1 10th and the coding rib 210 realizes reverse polarity protection. At the same time, this reverse polarity protection fulfills yet another very important function. He serves namely the fixation of the two connector parts 100, 200 together and in such a way that even with a high vibration or Rüttelbelastung the connector moving the connector parts 100, 200 is excluded relative to each other. As a result, it is very effectively prevented that the contact elements, so the blade contacts 107 and the spring contacts, rub against each other due to vibration and it can cause damage to the contacts up to the interruption of contact.
Um diese Klemmwirkung zu erzielen, ist die Codierrippe 210 in ihrem hinteren, der Steckseite abgewandten Bereich U-förmig ausgebildet mit U-förmig angeordneten Wänden, nachfolgend kurz U-Wände 212, 213 genannt. Diese U-Wände 212, 213 münden steckseitig in den trapezförmigen Steg 21 1 und sind mit diesem verbunden. Sie münden auf der der Steckseite abgewandten Seite in einer Gehäusewand 230, wobei sie hier mit der Gehäusewand 230 verbunden sind. Der Übergang vom trapezförmigen Steg 21 1 mit seinen schräg stehenden Wänden 215 in die senkrecht stehenden U- Wände 212, 213 erfolgt durch schräg verlaufende Gleitbereiche 219, die ein Hineingleiten der U- Wände 212, 213 in die trapezförmig ausgebildete Nut 1 10 mit ihren schräg stehenden Wänden 120 ermöglicht. Die U Wände 212, 213, die auf ihrer der Steckseite abgewandten Seite mit der Gehäusewand 230 verbunden sind, weisen an dieser Seite Verjüngungen 218 auf. Diese Verjüngungen 218 ermöglichen ein vollständiges Ineinanderschieben der beiden Steckverbinderteile 100, 200. Dies wäre ohne eine solche Verjüngung 218 aufgrund der Klemmwirkung der U-Wände nicht ohne Weiteres möglich. Diese Klemmwirkung wird in Verbindung mit den Fig. 3 und 4 nachfolgend näher erläutert. In order to achieve this clamping effect, the coding rib 210 is U-shaped in its rear, the plug-side facing away from the U-shaped walls, hereinafter called U-walls 212, 213 short. These U-walls 212, 213 open plug-side into the trapezoidal web 21 1 and are connected thereto. They open on the side remote from the plug side in a housing wall 230, where they are connected to the housing wall 230 here. The transition from the trapezoidal web 21 1 with its sloping walls 215 in the vertical U-walls 212, 213 carried by oblique sliding portions 219, the sliding in of the U-walls 212, 213 in the trapezoidal groove 1 10 with their oblique standing walls 120 allows. The U walls 212, 213, which are connected on their side facing away from the plug side with the housing wall 230, have tapers 218 on this side. These tapers 218 allow a complete telescoping of the two connector parts 100, 200. This would not be readily possible without such a taper 218 due to the clamping action of the U-walls. This clamping action will be explained in more detail in connection with FIGS. 3 and 4 below.
Die Fig. 3 ist eine Schnittdarstellung der beiden ineinander gesteckten Steckverbinderteile 100, 200. Im oberen Bereich ist die U-förmige Codierrippe 210 mit ihren U-Wänden 212, 213 dargestellt, die in der Nut 1 10 mit trapezförmi- gen Wänden 120 angeordnet ist. In Fig. 4a, 4b ist schematisch der Steckvorgang dargestellt. Fig. 4a zeigt die Nut 1 10 mit trapezförmigen Wänden 120. Die U-Wände 212, 213 der U-förmigen Codierrippe 210 stehen senkrecht, sodass eine Überschneidung O auftritt. Diese Überschneidung O ist vor dem Steckvorgang gegeben. Beim Steckvorgang werden die U-Wände 212, 213 der Codierrippe 210 in Richtung der mit B bezeichneten Pfeile elastisch nach innen gebogen und liegen nach der Steckung an den trapezförmigen, das heißt schräg gestellten Wänden 120 ersten Codierelements 1 10 an. Dieser Zustand ist in Fig. 4b dargestellt. Aufgrund ihrer elastischen Verformbarkeit üben die beiden U-Wände 212, 213 dabei eine in Richtung der schräg gestellten, trapezförmigen Wände 120 gerichtete Kraft F auf, die eine Fixierung der beiden Steckverbinderteile 100, 200 aneinander ermöglicht. Diese Kraft F kann rein prinzipiell über die Länge der U-Wände 212, 213 in Steckrichtung oder besser noch über die Dicke der U-Wände 212, 213 gewissermaßen eingestellt werden. Sie kann zum einen berechnet werden oder aufgrund von entsprechenden experimentellen Untersuchungen bestimmt werden. 3 is a sectional view of the two nested connector parts 100, 200. In the upper part of the U-shaped Codierrippe 210 is shown with their U-walls 212, 213, which in the groove 1 10 with trapezoidal gene walls 120 is arranged. In Fig. 4a, 4b, the insertion process is shown schematically. Fig. 4a shows the groove 1 10 with trapezoidal walls 120. The U-walls 212, 213 of the U-shaped Codierrippe 210 are perpendicular, so that an overlap O occurs. This overlap O is given before the insertion process. During the insertion process, the U-walls 212, 213 of the coding rib 210 are elastically bent inwardly in the direction of the arrows denoted by B and are after the connection to the trapezoidal, that is inclined walls 120 first coding element 1 10. This condition is shown in Fig. 4b. Due to their elastic deformability, the two U-walls 212, 213 exert a force F directed in the direction of the inclined, trapezoidal walls 120, which enables a fixation of the two connector parts 100, 200 to one another. This force F can be adjusted in principle over the length of the U-walls 212, 213 in the insertion direction or even better over the thickness of the U-walls 212, 213 to a certain extent. It can either be calculated or determined on the basis of appropriate experimental investigations.
Um die Biegefähigkeit der Wände 212, 213 zu verbessern und um darüber hinaus auch die Steckung der beiden Gehäuseteile 100, 200 ineinander zu erleichtern, kann vorgesehen sein, dass die Wände 212, 213 an ihrem Grund Ausnehmungen 260 aufweisen, die beispielsweise halbkreisförmig ausgebildet sein können (Fig. 4a, b). In order to improve the bending ability of the walls 212, 213 and, moreover, also to facilitate the connection of the two housing parts 100, 200 into one another, it can be provided that the walls 212, 213 have recesses 260 at their base, which may be semicircular, for example (Fig. 4a, b).

Claims

Ansprüche claims
1 . Verpolungsschutz für Steckverbinder mit zwei ineinander steckbaren Steckverbinderteilen (100, 200), wobei das eine Steckverbinderteil (100) ein erstes Codierelement und das andere Steckverbinderteil (200) ein zweites Codierelement aufweisen und wobei die beiden Codierelemente so aneinander angepasst sind, dass sie bei korrekter Anordnung der Steckverbinderteile (100, 200) eine Steckung ermöglichen und bei nicht korrekter Anordnung der Steckverbinderteile (100, 200) eine Steckung verhindern, dadurch gekennzeichnet, dass das eine Codierelement eine in Steckrichtung verlaufende Nut (1 10) mit trapezförmigem Querschnitt ist und dass das andere Codierelement eine in Steckrichtung verlaufende Codierrippe (210) ist, die U-förmig mit elastisch biegbaren U-förmig angeordneten Wänden (212, 213) ausgebildet ist. 1 . Reverse polarity protection for connectors with two plug-in connector parts (100, 200), wherein the one connector part (100) has a first coding element and the other connector part (200) has a second coding element and wherein the two coding elements are adapted to each other so that they are in the correct arrangement the connector parts (100, 200) allow a connection and prevent incorrect connection of the connector parts (100, 200) a mating, characterized in that the one coding element in the insertion direction extending groove (1 10) with trapezoidal cross-section and that the other Coding element extending in the insertion direction Codierrippe (210) which is U-shaped with elastically bendable U-shaped walls (212, 213) is formed.
2. Verpolungsschutz nach Anspruch 1 , dadurch gekennzeichnet, dass die U-förmig ausgebildete Codierrippe (210) mit elastischen, biegbaren U- förmig angeordneten Wänden (212, 213) in einen steckseitig angeordneten trapezförmigen Steg (21 1 ) mündet, dessen Querschnitt an den trapezförmigen Querschnitt der Nut (1 10) mit trapezförmigen Querschnitt ausgebildeten Codierelements angepasst ist. 2. Reverse polarity protection according to claim 1, characterized in that the U-shaped Codierrippe (210) with elastic, bendable U-shaped walls (212, 213) in a plug-side arranged trapezoidal web (21 1) opens, whose cross-section of the Trapezoidal cross-section of the groove (1 10) adapted with trapezoidal cross-section coding element is adapted.
3. Verpolungsschutz nach Anspruch 2, dadurch gekennzeichnet, dass zwischen dem trapezförmigen Steg (21 1 ) und den U-förmig angeordneten Wänden (212, 213) in Steckrichtung jeweils schräg verlaufende Gleitbereiche (219) angeordnet sind. 3. Reverse polarity protection according to claim 2, characterized in that between the trapezoidal web (21 1) and the U-shaped walls (212, 213) in the insertion direction each slanted sliding portions (219) are arranged.
4. Verpolungsschutz nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Dicke der U-förmig angeordneten Wände (212, 213) an eine vorgebbare Auszugskraft des einen Steckverbinderteils aus dem anderen angepasst sind. 4. reverse polarity protection according to one of the preceding claims, characterized in that the thickness of the U-shaped walls (212, 213) are adapted to a predetermined pull-out force of a connector part from the other.
5. Verpolungsschutz nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Nut (1 10) mit trapezförmigem Querschnitt in einem ersten Steckverbindergehäuse (105) des einen Steckverbinderteils (100)angeordnet ist und dass die Codierrippe (210) an einem zweiten Steckverbindergehäuse (205) des anderen Steckverbinderteils (200) angeordnet ist. 5. Reverse polarity protection according to one of the preceding claims, characterized in that the groove (1 10) is arranged with a trapezoidal cross-section in a first connector housing (105) of a connector part (100) and that the coding rib (210) on a second connector housing (205 ) of the other connector part (200) is arranged.
6. Verpolungsschutz nach Anspruch 5, dadurch gekennzeichnet, dass die U-förmig angeordneten Wände (212, 213) mit einer Gehäusewand (230) des Steckverbindergehäuses (205) des zweiten Steckverbinderteils (200) verbunden sind. 6. reverse polarity protection according to claim 5, characterized in that the U-shaped arranged walls (212, 213) with a housing wall (230) of the connector housing (205) of the second connector part (200) are connected.
7. Verpolungsschutz nach Anspruch 6, dadurch gekennzeichnet, dass sich die U-förmig angeordneten Wände (212, 213) der Codierrippe (210) hin zur Gehäusewand (230) außen verjüngen. 7. Reverse polarity protection according to claim 6, characterized in that the U-shaped arranged walls (212, 213) of the coding rib (210) taper towards the outside of the housing wall (230).
8. Verpolungsschutz nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die U-förmig angeordneten Wände (212, 213) an ihrem Grund jeweils Ausnehmungen (260) aufweisen. 8. Reverse polarity protection according to one of the preceding claims, characterized in that the U-shaped walls (212, 213) at their bottom respectively recesses (260).
EP15712784.6A 2014-03-14 2015-03-09 Polarity-reversal protection means Not-in-force EP3117490B1 (en)

Applications Claiming Priority (2)

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DE102014003477.1A DE102014003477A1 (en) 2014-03-14 2014-03-14 Reverse polarity protection
PCT/DE2015/100093 WO2015135531A1 (en) 2014-03-14 2015-03-09 Polarity-reversal protection means

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EP3117490A1 true EP3117490A1 (en) 2017-01-18
EP3117490B1 EP3117490B1 (en) 2018-04-18

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EP (1) EP3117490B1 (en)
JP (1) JP6509243B2 (en)
KR (1) KR102233388B1 (en)
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CA (1) CA2942061A1 (en)
DE (1) DE102014003477A1 (en)
DK (1) DK3117490T3 (en)
ES (1) ES2678747T3 (en)
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MX (1) MX356168B (en)
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TW201541750A (en) 2015-11-01
CN106104944A (en) 2016-11-09
IL247791A0 (en) 2016-11-30
JP2017507463A (en) 2017-03-16
KR102233388B1 (en) 2021-03-29
CA2942061A1 (en) 2015-09-17
MX2016011849A (en) 2017-02-23
IL247791B (en) 2020-05-31
JP6509243B2 (en) 2019-05-08
ES2678747T3 (en) 2018-08-17
US9711905B2 (en) 2017-07-18
US20170005437A1 (en) 2017-01-05
KR20160133524A (en) 2016-11-22
EP3117490B1 (en) 2018-04-18
CN106104944B (en) 2018-12-21
DK3117490T3 (en) 2018-06-25
WO2015135531A1 (en) 2015-09-17
MX356168B (en) 2018-05-17
DE102014003477A1 (en) 2015-09-17

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