EP0605455B1 - Filtering connector - Google Patents

Filtering connector Download PDF

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Publication number
EP0605455B1
EP0605455B1 EP92918385A EP92918385A EP0605455B1 EP 0605455 B1 EP0605455 B1 EP 0605455B1 EP 92918385 A EP92918385 A EP 92918385A EP 92918385 A EP92918385 A EP 92918385A EP 0605455 B1 EP0605455 B1 EP 0605455B1
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EP
European Patent Office
Prior art keywords
filter element
filter
chamber
plug according
side wall
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.)
Expired - Lifetime
Application number
EP92918385A
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German (de)
French (fr)
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EP0605455A1 (en
Inventor
Miroslav Smoravek
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Siemens AG
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Siemens AG
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Publication date
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Publication of EP0605455A1 publication Critical patent/EP0605455A1/en
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Publication of EP0605455B1 publication Critical patent/EP0605455B1/en
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    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters

Definitions

  • the invention relates to a filter plug with a pin head body made of plastic, which has a chamber that is open towards at least one side, with a number of parallel plug pins arranged in a grid, which enter the chamber from the back of the chamber through a bottom and emerge towards the open side of the chamber, and with at least one filter element, in particular a ferrite body, which has holes in the grid of the connector pins, are plugged onto the connector pins, and which are free of play in the axial direction of the connector pins in the axial direction of the connector pins by at least one molded spring element on the connector body Chamber is held.
  • a filter plug is known from DE-U-90 05 597 & WO 91/06 136.
  • the ferrite bodies plugged onto the plug pins serve to decouple electromagnetic interference.
  • this requires laborious manufacturing steps, in particular the curing of the adhesive being associated with a loss of time in mass production.
  • adhesive connections are not possible with some plastics used for pin header bodies of a plug.
  • DE-U-89 12 173 discloses a filter plug with tubular ferrite bodies which are pressed against the bottom of a chamber by means of a holding strip made of plastic, the holding strip being formed in the grid of the plug pins and onto which the ferrite bodies are plugged, and the chamber floor is formed with the cone opposite frustoconical lugs.
  • the retaining strip is designed as a separate individual part and fastened to the pin strip body in recesses in the pin strip body with lateral latching hooks.
  • integrally molded spring elements are provided on the chamber bottom of the pin header body, the ferrite core inserted into the connector pins inserted into the chamber by means of a shield housing which is latched onto the strip body against the force of the spring elements is pressed into the chamber and held there.
  • the ferrite core is only fixed in the final position by an additional component after the chamber with the shield housing has been closed.
  • the invention is based on the object, in the case of a filter plug of the type mentioned at the beginning, with a filter element fastening integrated into the pin strip body, to enable an even simpler, but at the same time safe and tolerance-insensitive assembly of a filter element.
  • the filter element is inserted into the lateral guides of the chamber and onto the plug pins and snapped into the chamber with slight pressure.
  • a filter connector according to the invention is provided with a filter element fastening integrated in one piece in the pin header body, so that the pin header body and the filter element form a unit that consists only of two components and is to be prefabricated, which is completely equipped on a base, e.g. B. a circuit board can be arranged.
  • the arrangement of the spring element laterally of the filter element between this and a side wall of the pin header body has the advantage in cooperation with the design of the spring element with a spring resiliently transverse to the direction of insertion of the filter element that a sufficient spring length can be achieved despite limited space.
  • Another advantage of this arrangement is that the spring element is torque-free in the direction of loading and has a certain elasticity, which is important for absorbing shock loads.
  • the filter element is in many cases designed as a one-piece, strip-shaped ferrite body of elongated extension.
  • the spring element extends between the filter element and the side wall of the pin header body in the longitudinal direction of the filter element.
  • Adequate lateral guidance for the filter element results if the lateral guides are arranged on two opposite ends of the filter element.
  • a particularly simple embodiment can be achieved in that the lateral guides are each formed by two clamps, which are laterally spaced from one another corresponding to the width of the filter element.
  • the spring element is approximately rectangular in cross section and is arranged upright with respect to the chamber floor. It is useful if the locking lug of the spring element is arranged upright between two connector pins. This results in a particularly space-saving arrangement of the filter element attachment with an optimal effect of the spring element.
  • the latching lug is designed with a bevel on its end face and the angle between this bevel and the insertion direction is chosen to be as small as possible.
  • the distance between the side wall is expedient the pin header body and the arm of the spring element matched both to the necessary deflection and to the bendability of the arm. This ensures on the one hand a necessary deflection for the engagement and on the other hand prevents the spring element from being overstretched.
  • the filter plug has a pin header body 1 made of plastic, which has on its right outer side a chamber 3 which is open in FIG. 2 to a printed circuit board 2 and to the right side.
  • This chamber is formed by a front and a rear side part 4 and 5 as well as a side wall 6 of the pin header body 1 and a further side wall, which is integrally formed at about the middle of the height of the side wall 6 and forms the chamber bottom 7.
  • the filter connector has a number of parallel connector pins 8 arranged in a grid, which penetrate the side wall 6, then run parallel under the chamber floor 7, are bent approximately at right angles and enter the chamber 3 from the rear of the chamber through the chamber floor and emerge towards the side of the chamber which is open towards the printed circuit board 2.
  • the filter connector is also equipped with a filter element 9, which is designed as a one-piece, strip-shaped ferrite body of elongated extension and 8 holes in the grid of the connector pins 10 has, with which it is plugged into the connector pins.
  • a filter element 9 which is designed as a one-piece, strip-shaped ferrite body of elongated extension and 8 holes in the grid of the connector pins 10 has, with which it is plugged into the connector pins.
  • the chamber is provided with side guides 15 and 16 provided with run-in bevels 11, 12 and 13, 14, respectively, at two opposite ends of the elongated one Ferrite body 9 are arranged and are formed by two brackets 15a, 15b and 16a, 16b encompassing the corners of the ferrite body.
  • brackets are arranged on the inside of the side parts 4 and 5 of the pin header body 1 opposite one another, wherein two brackets 15a, 15b and 16a, 16b are laterally spaced from each other approximately at a distance of the width B of the ferrite body.
  • the inlet slopes 11, 12 and 13, 14 of the guides 15, 16 each form an insertion channel tapering in the insertion direction 17 of the ferrite body 9.
  • two spring elements 18 are provided here, which extend laterally of the ferrite body 9 between it and the side wall 6 in the longitudinal direction of the ferrite body and are integrally formed on the side wall 6 perpendicular to the chamber bottom 7, for. B. are molded.
  • the spring elements 18 are essentially formed by an arm 19 extending in its longitudinal direction parallel to the side wall 6, which is angled at its ends approximately at right angles in the opposite direction, the one angled end 20 approximately in the middle of the length of the ferrite body 9 on the Sidewall 6 is integrally formed so that the arm 19 can spring transversely to the insertion direction 17 of the ferrite body, while the free angled end 21 of the arm 19 is formed with a locking lug 22 projecting into the insertion area of the ferrite body, which is inserted into and into the chamber Plug pins 8 inserted ferrite body snaps into this and is arranged and designed so that it presses the engaged ferrite body 9 against the chamber bottom 7. As can be seen from FIG.
  • the two spring elements 18 are integrally formed in mirror image on the side wall 6 with respect to the center of the length of the ferrite body and engage symmetrically on the ferrite body.
  • the spring elements 18 are approximately rectangular in cross-section and are arranged in an upright position relative to the chamber bottom 7, the latching lug 22 of the spring elements engaging in an upright position between two plug pins 8 on the ferrite body.
  • the insertion direction 17 is selected in the direction of the ferrite body 9 which has the smallest tolerances, ie in the direction of the height H of the ferrite body.
  • the locking lug 22 of the spring elements 18 is formed on its end face with a bevel 23, the angle ⁇ 1 between this bevel and the insertion direction 17 being chosen to be as small as possible.
  • the latching edge of the latch 22 is also formed with a bevel 24, the clearance angle ⁇ 2 between this slope and the contact surface of the latch on the ferrite body 9 being selected such that the clearance angle is self-locking against the latching of the ferrite body. So that the latching lug 22 can snap onto the ferrite body 9 at all, the width B of the ferrite body in the insertion direction 17 has a gradation 25 extending over the entire length of the ferrite body. However, it is sufficient if the ferrite body is formed with a pocket-shaped recess for the locking lug at those points at which a locking lug of a spring element engages.
  • the distance A between the side wall 6 of the pin header body 1 and the arm 19 of the spring elements 18 running parallel thereto is matched both to the necessary deflection and to the bendability of the arm 19.
  • the molded on the side wall 6 of the pin header body end 20 of the arm 19 is formed with transition radii 26, 27, 28 both in the connection area on the side wall 6 and in the connection area on the arm 19.
  • the filter element 9 is elongated and fixed with two spring elements 18 extending laterally and along the filter element.
  • the filter elements e.g. B. with smaller filter elements and / or with filter elements with a different shape, sufficient fixing of the filter element in the insertion direction can optionally be achieved with a single spring element.

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

Abstract

In order to position and secure a filtering element, in particular a ferrite body (9) in a chamber (3) of the body (1) of a pin strip of the filtering connector, side guides (15, 16) with inlet bevels (11 to 14) are provided. The filtering element (9) plugged on connector pins (8) is secured into place by lateral spring elements (18) which catch the filtering element and press it against the bottom (7) of the chamber. A filtering element attachment integrated in the pin strip body is thus obtained for easy, reliable and clearance-insensitive mounting, without additional attachment means.

Description

Die Erfindung betrifft einen Filter-Stecker mit einem aus Kunststoff bestehenden Stiftleistenkörper, der eine zu mindestens einer Seite hin offene Kammer aufweist, mit einer Anzahl von parallelen, in einem Raster angeordneten Steckerstiften, die von der Kammerrückseite her durch einen Boden in die Kammer eintreten und zur offenen Seite der Kammer austreten, und mit mindestens einem Filterelement, insbesondere einem Ferritkörper, das im Raster der Steckerstifte Bohrungen aufweist, auf die Steckerstifte gesteckt sind, und das durch mindestens ein an dem Stiftleistenkörper angeformtes Federelement aus Kunststoff spielfrei in Axialrichtung der Steckerstifte in der Kammer gehalten ist. Ein derartiger Filter-Stecker ist durch das DE-U-90 05 597 & WO 91/06 136 bekannt.The invention relates to a filter plug with a pin head body made of plastic, which has a chamber that is open towards at least one side, with a number of parallel plug pins arranged in a grid, which enter the chamber from the back of the chamber through a bottom and emerge towards the open side of the chamber, and with at least one filter element, in particular a ferrite body, which has holes in the grid of the connector pins, are plugged onto the connector pins, and which are free of play in the axial direction of the connector pins in the axial direction of the connector pins by at least one molded spring element on the connector body Chamber is held. Such a filter plug is known from DE-U-90 05 597 & WO 91/06 136.

Bei derartigen Filter-Steckern dienen die auf die Steckerstifte gesteckten Ferritkörper zusammen mit Durchführungskondensatoren zur Auskopplung von elektromagnetischen Störungen. Um dabei die Ferritkörper, welche herstellungsbedingt relativ große Toleranzen aufweisen, lagerichtig und spielfrei zu positionieren und sicher zu befestigen, ist es bekannt und üblich, die Ferritkörper in den Stiftleistenkörper des Steckers einzukleben. Dies bedingt jedoch umständliche Fertigungsschritte, wobei insbesondere das Aushärten des Klebstoffes mit einem Zeitverlust in der Massenfertigung verbunden ist. Außerdem sind Klebeverbindungen bei manchen für Stiftleistenkörper eines Steckers Verwendung findenden Kunststoffen nicht möglich.In such filter plugs, the ferrite bodies plugged onto the plug pins, together with feed-through capacitors, serve to decouple electromagnetic interference. In order to position the ferrite bodies, which have relatively large tolerances due to the manufacture, in the correct position and without play and to secure them, it is known and customary to glue the ferrite bodies into the pin header body of the plug. However, this requires laborious manufacturing steps, in particular the curing of the adhesive being associated with a loss of time in mass production. In addition, adhesive connections are not possible with some plastics used for pin header bodies of a plug.

Durch das DE-U-89 12 173 ist ein Filter-Stecker mit rohrförmigen Ferritkörpern bekannt, die mittels einer Halteleiste aus Kunststoff gegen den Boden einer kammer gedrückt werden, wobei die Halteleiste im Raster der Steckerstifte angeformte Zapfen, auf die die Ferritkörper gesteckt werden, und der Kammerboden mit den Zapfen gegenüberliegenden kegelstumpfförmigen Ansätzen ausgebildet ist. Die Halteleiste ist als separates Einzelteil ausgebildet und mit seitlichen Rasthaken in Ausnehmungen des Stiftleistenkörpers an diesem befestigt.DE-U-89 12 173 discloses a filter plug with tubular ferrite bodies which are pressed against the bottom of a chamber by means of a holding strip made of plastic, the holding strip being formed in the grid of the plug pins and onto which the ferrite bodies are plugged, and the chamber floor is formed with the cone opposite frustoconical lugs. The retaining strip is designed as a separate individual part and fastened to the pin strip body in recesses in the pin strip body with lateral latching hooks.

Bei dem aus dem DE-U-90 05 597 bekannten Filter-Stecker sind an dem Kammerboden des Stiftleistenkörpers einstückig angeformte Federelemente vorgesehen, wobei der auf die Steckerstifte gesteckte, in die Kammer eingesetzte Ferritkern mittels eines an dem Leistenkörper eingerasteten Schirmgehäuses entgegen der Kraft der Federelemente in die Kammer gedrückt und dort festgehalten wird. Damit ist der Ferritkern erst nach dem Schließen der Kammer mit dem Schirmgehäuse durch ein zusätzliches Bauelement in der endgültigen Position fixiert.In the filter plug known from DE-U-90 05 597 integrally molded spring elements are provided on the chamber bottom of the pin header body, the ferrite core inserted into the connector pins inserted into the chamber by means of a shield housing which is latched onto the strip body against the force of the spring elements is pressed into the chamber and held there. Thus, the ferrite core is only fixed in the final position by an additional component after the chamber with the shield housing has been closed.

Der Erfindung liegt nun die Aufgabe zugrunde, bei einem Filter-Stecker der eingangs genannten Art mit einer in den Stiftleistenkörper integrierten Filterelementebefestigung eine noch einfachere, gleichzeitig aber sichere und toleranzunempfindliche Montage eines Filterelementes zu ermöglichen.The invention is based on the object, in the case of a filter plug of the type mentioned at the beginning, with a filter element fastening integrated into the pin strip body, to enable an even simpler, but at the same time safe and tolerance-insensitive assembly of a filter element.

Diese Aufgabe wird gemäß der Erfindung durch folgende Merkmale gelöst:

  • a) die Kammer ist mit mit Einlaufschrägen versehenen seitlichen Führungen für das Filterelement ausgebildet,
  • b) das Federelement ist an einer zum Kammerboden quer verlaufenden Seitenwand des Stiftleistenkörpers seitlich des Filterelementes angeordnet und umfaßt einen quer zur Einsteckrichtung des Filterelementes federnden Arm, der an seinen Enden etwa rechtwinklig in entgegengesetzter Richtung abgewinkelt ist,
  • c) das eine abgewinkelte Ende des Armes des Federelementes ist an der Seitenwand angeformt, und das freie abgewinkelte Ende des Armes ist mit einer in den Einführbereich des Filterelementes ragenden Rastnase ausgebildet, die bei in die Kammer eingeführtem und auf die Steckerstifte gestecktem Filterelement an diesem einrastet und so angeordnet und ausgebildet ist, daß sie das eingerastete Filterelement gegen den Kammerboden drückt.
This object is achieved according to the invention by the following features:
  • a) the chamber is designed with lateral guides for the filter element provided with bevels,
  • b) the spring element is arranged on a side wall of the pin strip body, which extends transversely to the chamber bottom, to the side of the filter element and comprises an arm resilient transversely to the direction of insertion of the filter element, which is angled at its ends approximately at right angles in the opposite direction,
  • c) the one angled end of the arm of the spring element is formed on the side wall, and the free angled end of the arm is formed with a locking lug protruding into the insertion region of the filter element, which latches into the filter element when it is inserted into the chamber and plugged onto the plug pins and so arranged and is designed so that it presses the engaged filter element against the chamber bottom.

Bei einem derartigen Filter-Stecker wird das Filterelement in die seitlichen Führungen der Kammer und auf die Steckerstifte gesteckt und mit leichtem Druck in der Kammer eingerastet.With such a filter plug, the filter element is inserted into the lateral guides of the chamber and onto the plug pins and snapped into the chamber with slight pressure.

Nach dem Einrasten der Rastnase des Federelementes an dem Filterelement ist dieses ohne weitere Maßnahmen und zusätzliche Mittel bereits positioniert und in seiner Position sicher fixiert. Die Einlaufschrägen, welche einen sich in Einsteckrichtung des Filterelementes verjüngenden Einführungskanal bilden, stellen eine Montageerleichterung dar und sind seitlich des Filterelementes liegend so angeordnet, daß sich das Filterelement bereits vor Betätigung des Federelementes in der richtigen Lage befindet. Ein erfindungsgemäßer Filter-Stecker ist mit einer in den Stiftleistenkörper einstückig integrierten Filterelementebefestigung versehen, so daß der Stiftleistenkörper und das Filterelement eine lediglich noch aus zwei Bauelementen bestehende, vorzufertigende Einheit bilden, welche komplett bestückt auf einer Unterlage, z. B. einer Leiterplatte, angeordnet werden kann. Die Anordnung des Federelementes seitlich des Filterelementes zwischen diesem und einer Seitenwand des Stiftleistenkörpers hat im Zusammenwirken mit der Ausbildung des Federelementes mit einem quer zur Einsteckrichtung des Filterelementes federnden Arm den Vorteil, daß trotz eingeschränkter Platzverhältnisse eine ausreichende Federlänge erreichbar ist. Ein weiterer Vorteil dieser Anordnung ist, daß das Federelement in der Belastungsrichtung momentfrei ist und eine gewisse Elastizität besitzt, die für die Abfangung von Stoßbelastungen von Bedeutung ist.After the latching lug of the spring element has snapped into place, the filter element is already positioned without further measures and additional means and is securely fixed in its position. The inlet bevels, which form an insertion channel tapering in the direction of insertion of the filter element, make installation easier and are arranged lying to the side of the filter element in such a way that the filter element is already in the correct position before the spring element is actuated. A filter connector according to the invention is provided with a filter element fastening integrated in one piece in the pin header body, so that the pin header body and the filter element form a unit that consists only of two components and is to be prefabricated, which is completely equipped on a base, e.g. B. a circuit board can be arranged. The arrangement of the spring element laterally of the filter element between this and a side wall of the pin header body has the advantage in cooperation with the design of the spring element with a spring resiliently transverse to the direction of insertion of the filter element that a sufficient spring length can be achieved despite limited space. Another advantage of this arrangement is that the spring element is torque-free in the direction of loading and has a certain elasticity, which is important for absorbing shock loads.

Bei Filter-Steckern ist in vielen Fällen das Filterelement als einstückiger, leistenförmiger Ferritkörper von länglicher Ausdehnung ausgebildet. Hierbei ist es im Hinblick auf die eingeschränkten Platzverhältnisse von Vorteil, wenn sich das Federelement zwischen dem Filterelement und der Seitenwand des Stiftleistenkörpers in Längsrichtung des Filterelementes erstreckt.In the case of filter plugs, the filter element is in many cases designed as a one-piece, strip-shaped ferrite body of elongated extension. In view of the limited space available, it is advantageous if the spring element extends between the filter element and the side wall of the pin header body in the longitudinal direction of the filter element.

Eine ausreichende seitliche Führung für das Filterelement ergibt sich, wenn die seitlichen Führungen an zwei einander gegenüberliegenden Enden des Filterelementes angeordnet sind. Eine besonders einfache Ausführungsform läßt sich hierbei dadurch erreichen, daß die seitlichen Führungen von jeweils zwei Klammern gebildet sind, welche seitlich voneinander etwa der Breite des Filterelementes entsprechend beabstandet sind.Adequate lateral guidance for the filter element results if the lateral guides are arranged on two opposite ends of the filter element. A particularly simple embodiment can be achieved in that the lateral guides are each formed by two clamps, which are laterally spaced from one another corresponding to the width of the filter element.

Insbesondere bei Filterelementen von länglicher Ausdehnung ist es hinsichtlich einer ausreichend sicheren Fixierung des Filterelementes von Vorteil, wenn zwei zueinander in bezug auf die Mitte der Länge des Filterelementes spiegelbildlich an der Seitenwand angeformte, symmetrisch an dem Filterelement einrastende Federelemente vorgesehen sind.Particularly in the case of filter elements of elongated extension, it is advantageous with regard to a sufficiently secure fixation of the filter element if two spring elements are provided which are molded onto the side wall in a mirror image with respect to the center of the length of the filter element and engage symmetrically on the filter element.

Sowohl im Hinblick auf die Federwirkung des Federelementes als auch wegen der eingeschränkten Platzverhältnisse ist es vorteilhaft, wenn das Federelement im Querschnitt etwa rechteckig ausgebildet und zum Kammerboden hochkant stehend angeordnet ist. Dabei ist es zweckmäßig, wenn auch die Rastnase des Federelementes hochkant stehend zwischen zwei Steckerstiften angeordnet ist. Es ergibt sich dann eine besonders platzsparende Anordnung der Filterelementebefestigung bei optimaler Wirkung des Federelementes.Both with regard to the spring action of the spring element and because of the limited space, it is advantageous if the spring element is approximately rectangular in cross section and is arranged upright with respect to the chamber floor. It is useful if the locking lug of the spring element is arranged upright between two connector pins. This results in a particularly space-saving arrangement of the filter element attachment with an optimal effect of the spring element.

Wenn bei einem erfindungsgemäßen Filterstecker die Einsteckrichtung in der Richtung des Filterelementes gewählt ist, die mit den kleinsten Toleanzen behaftet ist, so kann der für eine sichere Einrastung benötigte Federweg klein gehalten werden.If, in the case of a filter plug according to the invention, the insertion direction in the direction of the filter element which has the smallest toleances is selected, the spring travel required for a reliable engagement can be kept small.

Um die Montagekraft, d. h. die Kraft beim Einstecken eines Filterelementes in die Kammer, möglichst klein halten zu können, ist es zweckmäßig, wenn die Rastnase an ihrer Stirnseite mit einer Schräge ausgebildet und der Winkel zwischen dieser Schräge und der Einsteckrichtung möglichst klein gewählt ist.To the assembly force, d. H. the force when inserting a filter element into the chamber to be able to be kept as small as possible, it is expedient if the latching lug is designed with a bevel on its end face and the angle between this bevel and the insertion direction is chosen to be as small as possible.

In zweckmäßiger Weise ist der Abstand zwischen der Seitenwand des Stiftleistenkörpers und dem Arm des Federelementes sowohl auf die nötige Auslenkung als auch auf die Biegefähigkeit des Armes abgestimmt. Damit ist einerseits eine für die Einrastung nötige Auslenkung gewährleistet und andererseits wird eine Überdehnung des Federelementes verhindert.The distance between the side wall is expedient the pin header body and the arm of the spring element matched both to the necessary deflection and to the bendability of the arm. This ensures on the one hand a necessary deflection for the engagement and on the other hand prevents the spring element from being overstretched.

Weitere vorteilhafte Ausgestaltungen des Gegenstandes des Anspruchs 1 sind in den übrigen Unteransprüchen angegeben.Further advantageous embodiments of the subject matter of claim 1 are specified in the remaining subclaims.

Die Erfindung wird im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben.The invention is described below with reference to an embodiment shown in the drawing.

Dabei zeigen

  • Figur 1 eine Draufsicht auf einen ein Filterelement enthaltenden Teilbereich eines Filter-Steckers und
  • Figur 2 einen Schnitt II-II nach Figur 1.
Show
  • Figure 1 is a plan view of a portion of a filter plug containing a filter element and
  • Figure 2 shows a section II-II of Figure 1.

Der Filter-Stecker besitzt einen aus Kunststoff bestehenden Stiftleistenkörper 1, der an seiner rechten Außenseite eine in Figur 2 zu einer Leiterplatte 2 sowie zur rechten Seite hin offene Kammer 3 aufweist. Diese Kammer ist von einem vorderen und einem hinteren Seitenteil 4 bzw. 5 sowie einer Seitenwand 6 des Stiftleistenkörpers 1 und einer weiteren Seitenwand gebildet, welche etwa in der Mitte der Höhe der Seitenwand 6 senkrecht an dieser abstehend angeformt ist und den Kammerboden 7 bildet. Außerdem weist der Filter-Stecker noch eine Anzahl paralleler, in einem Raster angeordnete Steckerstifte 8 auf, die die Seitenwand 6 durchdringen, dann parallel unter dem Kammerboden 7 verlaufen, etwa rechtwinklig abgebogen sind und von der Kammerrückseite her durch den Kammerboden in die Kammer 3 eintreten und zu der in Richtung auf die Leiterplatte 2 hin offenen Seite der Kammer austreten. Der Filter-Stecker ist ferner mit einem Filterelement 9 bestückt, welches als einstückiger, leistenförmiger Ferritkörper von länglicher Ausdehnung ausgebildet ist und im Raster der Steckerstifte 8 Bohrungen 10 aufweist, mit denen er auf die Steckerstifte gesteckt ist. Zur positionierung des Ferritkörpers 9 beim Einstecken in die Kammer 3 und auch zur Fixierung in der eingesteckten Position ist die Kammer mit mit Einlaufschrägen 11, 12 bzw. 13, 14 versehenen seitlichen Führungen 15 bzw. 16 ausgebildet, die an zwei einander gegenüberliegenden Enden des länglichen Ferritkörpers 9 angeordnet sind und von jeweils zwei die Ecken des Ferritkörpers umgreifenden Klammern 15a, 15b und 16a, 16b gebildet sind. Diese Klammern sind an der Innenseite der Seitenteile 4 und 5 des Stiftleistenkörpers 1 einander gegenüberliegend angeordnet, wobei jeweils zwei Klammern 15a, 15b und 16a, 16b seitlich etwa im Abstand der Breite B des Ferritkörpers voneinander beabstandet sind. Die Einlaufschrägen 11, 12 bzw. 13, 14 der Führungen 15, 16 bilden jeweils einen sich in Einsteckrichtung 17 des Ferritkörpers 9 verjüngenden Einführungskanal. Zur Fixierung des Ferritkörpers in der Kammer 3 sind hier zwei Federelemente 18 vorgesehen, welche sich seitlich des Ferritkörpers 9 zwischen diesem und der Seitenwand 6 in Längsrichtung des Ferritkörpers erstrecken und einstückig an der zum Kammerboden 7 senkrechten Seitenwand 6 angeformt, z. B. angespritzt sind. Die Federelemente 18 sind im wesentlichen von einem sich in seiner Längsrichtung parallel zur Seitenwand 6 erstreckenden Arm 19 gebildet, der an seinen Enden etwa rechtwinklig in entgegengesetzter Richtung abgewinkelt ist, wobei das eine abgewinkelte Ende 20 etwa in der Mitte der Länge des Ferritkörpers 9 an der Seitenwand 6 angeformt ist, so daß der Arm 19 quer zur Einsteckrichtung 17 des Ferritkörpers federn kann, während das freie abgewinkelte Ende 21 des Armes 19 mit einer in den Einführbereich des Ferritkörpers ragenden Rastnase 22 ausgebildet ist, die bei in die Kammer eingeführtem und auf die Steckerstifte 8 gestecktem Ferritkörper an diesem einrastet und so angeordnet und ausgebildet ist, daß sie den eingerasteten Ferritkörper 9 gegen den Kammerboden 7 drückt. Wie aus Figur 1 hervorgeht, sind die beiden Federelemente 18 in bezug auf die Mitte der Länge des Ferritkörpers spiegelbildlich an der Seitenwand 6 angeformt und rasten symmetrisch an dem Ferritkörper ein. Die Federelemente 18 sind im Querschnitt etwa rechteckig ausgebildet und zum Kammerboden 7 hochkant stehend angeordnet, wobei die Rastnase 22 der Federelemente hochkant stehend zwischen zwei Stekkerstiften 8 an dem Ferritkörper einrastet. Die Einsteckrichtung 17 ist in der Richtung des Ferritkörpers 9 gewählt, die mit den kleinsten Toleranzen behaftet ist, also in Richtung der Höhe H des Ferritkörpers. Die Rastnase 22 der Federelemente 18 ist an ihrer Stirnseite mit einer Schräge 23 ausgebildet, wobei der Winkel α1 zwischen dieser Schräge und der Einsteckrichtung 17 möglichst klein gewählt ist. Auch die Einrastkante der Rastnase 22 ist mit einer Schräge 24 ausgebildet, wobei der Freiwinkel α2 zwischen dieser Schräge und der Auflagefläche der Rastnase am Ferritkörper 9 so gewählt ist, daß der Freiwinkel gegen Ausrasten des Ferritkörpers selbsthemmend wirkt. Damit die Rastnase 22 überhaupt an dem Ferritkörper 9 einrasten kann, weist der Ferritkörper in Einsteckrichtung 17 in seiner Breite B eine sich über die gesamte Länge des Ferritkörpers erstreckende Abstufung 25 auf. Es genügt jedoch, wenn der Ferritkörper an denjenigen Stellen, an welchen eine Rastnase eines Federelementes einrastet, mit einer taschenförmigen Ausnehmung für die Rastnase ausgebildet ist. Der Abstand A zwischen der Seitenwand 6 des Stiftleistenkörpers 1 und dem hierzu parallel verlaufenden Arm 19 der Federelemente 18 ist sowohl auf die nötige Auslenkung als auch auf die Biegefähigkeit des Armes 19 abgestimmt. Das an der Seitenwand 6 des Stiftleistenkörpers angeformte Ende 20 des Armes 19 ist sowohl im Anschlußbereich an der Seitenwand 6 als auch im Anschlußbereich an dem Arm 19 mit Übergangsradien 26, 27, 28 ausgebildet.The filter plug has a pin header body 1 made of plastic, which has on its right outer side a chamber 3 which is open in FIG. 2 to a printed circuit board 2 and to the right side. This chamber is formed by a front and a rear side part 4 and 5 as well as a side wall 6 of the pin header body 1 and a further side wall, which is integrally formed at about the middle of the height of the side wall 6 and forms the chamber bottom 7. In addition, the filter connector has a number of parallel connector pins 8 arranged in a grid, which penetrate the side wall 6, then run parallel under the chamber floor 7, are bent approximately at right angles and enter the chamber 3 from the rear of the chamber through the chamber floor and emerge towards the side of the chamber which is open towards the printed circuit board 2. The filter connector is also equipped with a filter element 9, which is designed as a one-piece, strip-shaped ferrite body of elongated extension and 8 holes in the grid of the connector pins 10 has, with which it is plugged into the connector pins. To position the ferrite body 9 when inserted into the chamber 3 and also to fix it in the inserted position, the chamber is provided with side guides 15 and 16 provided with run-in bevels 11, 12 and 13, 14, respectively, at two opposite ends of the elongated one Ferrite body 9 are arranged and are formed by two brackets 15a, 15b and 16a, 16b encompassing the corners of the ferrite body. These brackets are arranged on the inside of the side parts 4 and 5 of the pin header body 1 opposite one another, wherein two brackets 15a, 15b and 16a, 16b are laterally spaced from each other approximately at a distance of the width B of the ferrite body. The inlet slopes 11, 12 and 13, 14 of the guides 15, 16 each form an insertion channel tapering in the insertion direction 17 of the ferrite body 9. To fix the ferrite body in the chamber 3, two spring elements 18 are provided here, which extend laterally of the ferrite body 9 between it and the side wall 6 in the longitudinal direction of the ferrite body and are integrally formed on the side wall 6 perpendicular to the chamber bottom 7, for. B. are molded. The spring elements 18 are essentially formed by an arm 19 extending in its longitudinal direction parallel to the side wall 6, which is angled at its ends approximately at right angles in the opposite direction, the one angled end 20 approximately in the middle of the length of the ferrite body 9 on the Sidewall 6 is integrally formed so that the arm 19 can spring transversely to the insertion direction 17 of the ferrite body, while the free angled end 21 of the arm 19 is formed with a locking lug 22 projecting into the insertion area of the ferrite body, which is inserted into and into the chamber Plug pins 8 inserted ferrite body snaps into this and is arranged and designed so that it presses the engaged ferrite body 9 against the chamber bottom 7. As can be seen from FIG. 1, the two spring elements 18 are integrally formed in mirror image on the side wall 6 with respect to the center of the length of the ferrite body and engage symmetrically on the ferrite body. The spring elements 18 are approximately rectangular in cross-section and are arranged in an upright position relative to the chamber bottom 7, the latching lug 22 of the spring elements engaging in an upright position between two plug pins 8 on the ferrite body. The insertion direction 17 is selected in the direction of the ferrite body 9 which has the smallest tolerances, ie in the direction of the height H of the ferrite body. The locking lug 22 of the spring elements 18 is formed on its end face with a bevel 23, the angle α1 between this bevel and the insertion direction 17 being chosen to be as small as possible. The latching edge of the latch 22 is also formed with a bevel 24, the clearance angle α2 between this slope and the contact surface of the latch on the ferrite body 9 being selected such that the clearance angle is self-locking against the latching of the ferrite body. So that the latching lug 22 can snap onto the ferrite body 9 at all, the width B of the ferrite body in the insertion direction 17 has a gradation 25 extending over the entire length of the ferrite body. However, it is sufficient if the ferrite body is formed with a pocket-shaped recess for the locking lug at those points at which a locking lug of a spring element engages. The distance A between the side wall 6 of the pin header body 1 and the arm 19 of the spring elements 18 running parallel thereto is matched both to the necessary deflection and to the bendability of the arm 19. The molded on the side wall 6 of the pin header body end 20 of the arm 19 is formed with transition radii 26, 27, 28 both in the connection area on the side wall 6 and in the connection area on the arm 19.

Bei dem dargestellten Ausführungsbeispiel ist das Filterelement 9 länglich ausgebildet und mit zwei seitlich und sich längs des Filterelementes erstreckenden Federelementen 18 fixiert. Bei anderen Filterelementen, z. B. bei kleineren Filterelementen und/oder bei Filterelementen mit anderer Form kann eine ausreichende Fixierung des Filterelementes in Einsteckrichtung gegebenenfalls auch mit einem einzigen Federelement erreicht werden.In the illustrated embodiment, the filter element 9 is elongated and fixed with two spring elements 18 extending laterally and along the filter element. With other filter elements, e.g. B. with smaller filter elements and / or with filter elements with a different shape, sufficient fixing of the filter element in the insertion direction can optionally be achieved with a single spring element.

Claims (17)

  1. Filter plug having a male strip connector body which is composed of plastic and has a chamber open towards at least one side, having a number of parallel plug pins which are arranged in a grid, enter the chamber from the chamber rear side through a base and emerge on the open side of the chamber, and having at least one filter element, preferably a ferrite body, which has holes matching the grid of the plug pins, is plugged onto the plug pins, and is held in the chamber, without any play in the axial direction of the plug pins, by means of at least one spring element which is integrally formed on the male strip connector body, and is composed of plastic, characterized by the following features:
    a) the chamber (3) is constructed with lateral guides (15, 16), which are provided with insertion inclines (11 to 14), for the filter element (9),
    b) the spring element (18) is arranged at the side of the filter element (9), on a side wall (6) of the male strip connector body (1), which wall runs transversely with respect to the chamber base (7) and comprises an arm (19), which is sprung transversely with respect to the insertion direction (17) of the filter element (9) and, at its ends (20, 21), is bent approximately at right angles in the opposite direction,
    c) one (20) of the bent ends of the arm (19) of the spring element (18) is integrally formed on the side wall (6), and the free bent end (21) of the arm (19) is constructed with a latching tab (22) which projects into the insertion region of the filter element (9), latches in on the filter element (9) when the latter is inserted into the chamber (3) and is plugged onto the plug pins (8), and is arranged and constructed such that it presses the latched-in filter element (9) against the chamber base (7).
  2. Filter plug according to Claim 1, characterized in that the filter element (9) is constructed as an integral ferrite body, which is in the form of a strip and is of elongated extent.
  3. Filter plug according to Claim 2, characterized in that the spring element (18) extends between the filter element (9) and the side wall (6) of the male strip connector body (1), in the longitudinal direction of the filter element.
  4. Filter plug according to one of Claims 1 to 3, characterized in that the lateral guides (15, 16) for the filter element (9) are arranged at two mutually opposite ends of the filter element.
  5. Filter plug according to Claim 4, characterized in that the lateral guides (15, 16) are formed by in each case two brackets (15a, 15b and 16a, 16b respectively) which are correspondingly laterally spaced apart from one another by approximately the width (B) of the filter element (9).
  6. Filter plug according to one of the preceding claims, characterized in that the side wall (6) of the male strip connector body (1) runs at right angles to the chamber base (7), and the longitudinal direction of the arm (19) of the spring element (18) extends parallel to the side wall (6).
  7. Filter plug according to one of the preceding claims, characterized in that the spring element (18) is integrally formed on the side wall (6) approximately in the centre of the length of the filter element (9) and latches in on the filter element in the region of one end of said filter element.
  8. Filter plug according to one of the preceding claims, characterized in that two spring elements (18) are provided which are integrally formed, in mirror-image form with respect to one another and to the centre of the length of the filter element (9), on the side wall (6) and latch in on the filter element symmetrically.
  9. Filter plug according to one of the preceding claims, characterized in that the spring element (18) is constructed to be approximately rectangular in cross-section, and is arranged standing upright with respect to the chamber base (7).
  10. Filter plug according to one of the preceding claims, characterized in that the latching tab (22) of the spring element (18) is arranged standing upright between two plug pins (8).
  11. Filter plug according to one of the preceding claims, characterized in that the insertion direction (17) is selected to be in that direction of the filter element (9) which has the smallest tolerances.
  12. Filter plug according to one of the preceding claims, characterized in that the latching tab (22) is constructed with an incline (23) on its end face, and the angle (α1) between this incline (23) and the insertion direction (17) is selected to be as small as possible.
  13. Filter plug according to one of the preceding claims, characterized in that the latching-in edge of the latching tab (22) is constructed with an incline (24), and the free angle (α2) between this incline (24) and the bearing surface of the latching tab (22) on the filter element (9) is selected such that the free angle acts in a self-locking manner against unlatching of the filter element.
  14. Filter plug according to one of the preceding claims, characterized in that the distance (A) between the side wall (6) of the male strip connector body (1) and the arm (19) of the spring element (18) is matched both to the necessary deflection and to the bending capability of the arm (19).
  15. Filter plug according to one of the preceding claims, characterized in that the end (20), which is integrally formed on the side wall (6) of the male strip connector body (1), of the arm (19) is constructed with transition radii (26, 27, 28) both in the connecting region to the side wall (6) and in the connecting region to the arm (19).
  16. Filter plug according to one of the preceding claims, characterized in that the filter element (9) has a step (25), which extends over the entire length of the filter element, in its width (B) in the insertion direction (17).
  17. Filter plug according to one of Claims 1 to 15, characterized in that the filter element (9) is constructed with a pocket-shaped recess for the latching tab at the points at which a latching tab (22) of a spring element (18) latches in.
EP92918385A 1991-09-27 1992-08-27 Filtering connector Expired - Lifetime EP0605455B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9112098U 1991-09-27
DE9112098U DE9112098U1 (en) 1991-09-27 1991-09-27
PCT/DE1992/000717 WO1993006639A1 (en) 1991-09-27 1992-08-27 Filtering connector
US08/218,614 US5370555A (en) 1991-09-27 1994-03-28 Filter plug

Publications (2)

Publication Number Publication Date
EP0605455A1 EP0605455A1 (en) 1994-07-13
EP0605455B1 true EP0605455B1 (en) 1995-05-24

Family

ID=25958690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92918385A Expired - Lifetime EP0605455B1 (en) 1991-09-27 1992-08-27 Filtering connector

Country Status (5)

Country Link
US (1) US5370555A (en)
EP (1) EP0605455B1 (en)
DE (2) DE9112098U1 (en)
ES (1) ES2072766T3 (en)
WO (1) WO1993006639A1 (en)

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US20120046784A1 (en) * 2009-02-24 2012-02-23 Sew-Eurodrive Gmbh & Co. Kg Conveyor System for Conveying Individual Piece Goods

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DE4326486A1 (en) * 1993-08-06 1995-02-09 Siemens Ag Filter plug
US6267626B1 (en) * 1996-02-22 2001-07-31 Omega Engineering, Inc. Connector for thermoelectric devices
GB2318222A (en) * 1996-10-09 1998-04-15 Johnson Chuang Noise interference preventive electrical connector
EP1002215B1 (en) * 1997-08-08 2001-10-31 The Whitaker Corporation Air bag connector
US6276943B1 (en) 1999-02-22 2001-08-21 Amphenol Corporation Modular plug connector and improved receptacle therefore
DE19945426C1 (en) * 1999-09-22 2001-01-18 Siemens Ag Plug connector protecting e.g. components of circuit card from electrostatic discharge, has pins embedded in plastic including material insulating at working voltage, but conducting above it
DE102008023715A1 (en) 2008-05-15 2009-12-03 Semikron Elektronik Gmbh & Co. Kg Arrangement with printed circuit board, plug connector and ferrite core

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BR8401396A (en) * 1983-03-30 1984-11-06 Du Pont ELECTRICAL CONNECTOR FOR FILTERING WIDE FREQUENCY RANGE
JPH07111890B2 (en) * 1987-07-13 1995-11-29 ヒロセ電機株式会社 EMI countermeasure electrical connector
CA1338734C (en) * 1988-05-17 1996-11-26 Elazar Rabbani Assay device with gradient-regulated localized signal
US5073374A (en) * 1988-11-30 1991-12-17 Schering Corporation Fast dissolving buccal tablet
JP2754024B2 (en) * 1988-12-28 1998-05-20 株式会社村田製作所 Filter connector
DE8912173U1 (en) * 1989-10-12 1991-02-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
WO1991006136A1 (en) * 1989-10-12 1991-05-02 Siemens Aktiengesellschaft Filter plug connector
DE9005597U1 (en) * 1990-05-16 1991-09-12 Siemens Ag, 8000 Muenchen, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120046784A1 (en) * 2009-02-24 2012-02-23 Sew-Eurodrive Gmbh & Co. Kg Conveyor System for Conveying Individual Piece Goods
US8952568B2 (en) * 2009-02-24 2015-02-10 Interroll Holding Ag Conveyor system for conveying individual piece goods

Also Published As

Publication number Publication date
EP0605455A1 (en) 1994-07-13
US5370555A (en) 1994-12-06
ES2072766T3 (en) 1995-07-16
WO1993006639A1 (en) 1993-04-01
DE59202368D1 (en) 1995-06-29
DE9112098U1 (en) 1993-01-28

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