EP0609232B1 - Shielded pin-and-socket connector - Google Patents

Shielded pin-and-socket connector Download PDF

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Publication number
EP0609232B1
EP0609232B1 EP92918788A EP92918788A EP0609232B1 EP 0609232 B1 EP0609232 B1 EP 0609232B1 EP 92918788 A EP92918788 A EP 92918788A EP 92918788 A EP92918788 A EP 92918788A EP 0609232 B1 EP0609232 B1 EP 0609232B1
Authority
EP
European Patent Office
Prior art keywords
plug
screen housing
cable
insert
connector according
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
EP92918788A
Other languages
German (de)
French (fr)
Other versions
EP0609232A1 (en
Inventor
Georges Embo
Horst Schiefele
Anton Schröcker
Hans Voss
Albert Wiedemann
Reinhold Reich
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.)
Siemens AG
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Siemens AG
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Publication date
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Publication of EP0609232A1 publication Critical patent/EP0609232A1/en
Application granted granted Critical
Publication of EP0609232B1 publication Critical patent/EP0609232B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6591—Specific features or arrangements of connection of shield to conductive members
    • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
    • 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
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H01R13/74—Means for mounting coupling parts in openings of a panel

Definitions

  • the invention relates to a shielded connector having a metal shield housing, to which at least one shielded cable is connected on the connection side and a plug or socket insert having a metal collar is provided on the connector side.
  • a connector is known from DE-U-87 13 046.
  • the connector as a link between closed electronic systems and the periphery is subject to increasingly high demands with regard to electromagnetic compatibility.
  • the development of electronic systems is characterized by an ever increasing processing speed, ie by higher clock frequencies in digital computing and control systems. This increases the sensitivity to high-frequency interference. These interferences can lead to malfunctions that have a direct impact on the quality of these systems.
  • interference also comes from electronic systems or devices themselves, which work with steep-edged, high-frequency signals in the control and power sections.
  • the connector is of crucial importance as an interface element between a closed electronic system and the environment.
  • the connector known from DE-U-87 13 046 is provided for such purposes.
  • the metal connector body is arranged with its collar on the outside of the connector on the connector-side end of the lower housing part.
  • the connecting cable is mechanically connected to the lower housing part by means of a clamp and electrically to a shield plate arranged in the lower housing part.
  • the housing is composed of two half-shells, between which there may be small gaps which significantly influence the shielding effect.
  • Various shielding materials are used for such housings, such as solid cast aluminum half-shells, metal sheets inserted in plastic half-shells or metallized plastic half-shells. These half shells are each electrically connected to the braided shield of the cable and to the metal collar of the built-in connector.
  • the metal collar of the built-in connector is usually fixed above on the front of the housing.
  • the flow path of the interference signals to be derived to ground being as follows: cable shield braid - housing wall - metal collar of the plug - metal collar of the mating plug - device wall (ground).
  • Surface currents can be conducted into the interior of devices and / or interference can originate from the device itself.
  • the invention has for its object to provide a connector of the type mentioned, the increased shielding requirements of e.g. > 80 dB fulfilled.
  • the metal housing of the connector is made in one piece and with one shell.
  • the contact between the cable shield and the housing of the connector is made by a direct face contact, ie the cable shield is not only partially or via intermediate transitions as with screwed clamps, but all around and without intermediate transitions in direct contact with the shield housing.
  • an end-side contact from the housing of the connector to a device wall is provided, so that an unimpeded flow of surface currents is ensured.
  • the support point for the metal collar of the plug or socket insert is set back so far that the plug or socket insert is largely inside the shield housing.
  • the plug or socket insert is arranged largely mechanically and electrically protected within the shield housing.
  • the inside width of the shield housing at the plug-side end is selected such that, in the case of a connector fastened to a device wall, the plug or socket insert, its mating connector on the device wall and the passage opening of the device wall laterally from the plug-side housing edge are surrounded. This encapsulates the plug or socket insert and mating connector as well as the recess in the device wall in an electrically shielded manner.
  • a contact plate is arranged between the plug-side end face of the shield housing and the device wall.
  • a contact plate can e.g. consist of a feathered spring plate.
  • the cable is expediently connected by means of a union nut which can be screwed into the connection area of the shield housing.
  • a union nut which can be screwed into the connection area of the shield housing.
  • an end-face contact can be made produce the cable shield on the transverse wall of the shield housing in a simple manner by sliding a sleeve over the exposed cable shield, over which the cable shield is turned over on one side by 180 ° and on which the union nut engages on the other side.
  • the connector can only be inserted freely when connecting to the mating connector and without being influenced by the fastening process and then after the plug connection has been made, by means of the fasteners are locked.
  • the connector has a metal shield housing 1 made of a one-piece and one-shell die-cast part, in particular made of aluminum.
  • the shield housing 1 is funnel-shaped with a further plug-side area 2 and, on the other hand, a narrower connection area 3 formed by a gradation. In this connection area at least one shielded cable 4 is connected in a manner described in more detail later.
  • a plug or socket insert 6 having a metal collar 5 is provided, which is connected to the cable 4.
  • the support point 17 on the shield housing 1 for the metal collar 5 of the plug or socket insert 6 is so far inward compared to the plug end 7 of the shield housing that the plug or socket insert 6 is largely within the shield housing. For this reason, an end-side contacting of the shield housing on a device wall 8 can then take place exclusively via the plug-side end face 7 of the shield housing.
  • the support point 17 on the shield housing for the metal collar 5 of the plug or socket insert 6 is expediently formed by two mutually opposite steps on the inner walls of the shield housing.
  • Two screws 9 are provided as fastening elements for the detachable fastening of the shield housing 1 to the device wall 8 and can be displaced in the plugging direction, but are captively arranged on the shield housing.
  • the screws 9 are formed in the longitudinal direction with four different zones. These zones are, for example, a slotted screw head 10 for screwing on, a cylindrical neck zone 11, an external thread 12 whose diameter is larger than that of the neck zone, and also a small external thread 13 for screwing into threaded sleeves 14 on the device wall 8, the external thread 13 being provided with recesses 15 of the metal collar 5 of the plug or socket insert 6 fits.
  • the accommodation of the screws 9 in the shield housing is provided here so that a sufficiently large space for the passage of the screws 9 is provided on the side of the plug or socket insert 6, that is between the latter and the inside of the shield housing 1.
  • the plug or socket insert 6 is fixed laterally in the plug-in direction by two diagonally opposite screws 16, which are screwed radially between the support point 17 and the plug-side end face 7 of the shield housing into its wall and a floating, self-searching mounting of the plug or socket insert enable the mating connector 18 arranged on the device wall 8.
  • the plug or socket insert 6 and mating plug 18 are plugged together and electrically connected.
  • the plug-side end face 7 of the shield housing 1 makes contact on the end face on the device wall 8, the inside width of the shield housing 1 at the plug end being selected such that the plug or socket insert 6, its mating connector 18 on the device wall 8 and the passage opening 19 of the device wall laterally are surrounded by the edge of the housing. In this way, the connector is completely encapsulated for electromagnetic fields.
  • an additional contact plate 20 can be arranged between the plug-side end face 7 of the shield housing 1 and the device wall 8, which, for example, has corresponding cutouts is provided for carrying fasteners.
  • the cable 4 is now connected in the following way: After the plug or socket insert 6 - as in FIG. 1 - is mounted in the shield housing, the cable 4 is pushed back in a bushing 21 in a transverse wall 22 which is in the connection area 3 of the shield housing 1 provided transversely to the direction of insertion and is set back inwards relative to the connection-side end face 23 such that a connection bore 24 is formed.
  • a direct end contact is made between the cable shield 25 and the transverse wall 22 of the shield housing 1 with the aid of a union nut 27 which is pushed over the cable sheath 6 and consists of conductive material, for which purpose a sleeve 28, the inside diameter of which is approximately the outside diameter of the cable 4, is exposed via the exposed cable shield 25 corresponds to the cable sheath 26, is pushed, and over which the cable shield 25 is turned over on one side by 180 ° and on which the union nut 27 engages on the other side.
  • the union nut By tightening the union nut, the e.g. consisting of a wire mesh cable shield 25 pressed on the end face of the transverse wall 22 and thus electrically contacted.
  • the union nut 27 is then formed on the threaded region 29 with a neck 30 resting on the cable jacket 26, which is provided with a window-shaped opening 31, into which a cable tie 32 is inserted to relieve the strain on the cable 4 and is fixed on the cable jacket 26 (FIG. 3) .
  • an additional hose 33 is pushed out of a braided shield over the neck 30a of the union nut 27a and is fixedly connected and contacted with the neck 30a by means of a clamping ring 34.
  • This variant can be used to further improve the shielding effect.
  • the inside of the shield housing 1 is designed so that filtered connectors can also be installed. Thus, possibly induced in the cable Interference signals are also diverted to ground via the filter connector.
  • both the plug or socket insert 6 and the mating connector 18 are provided with a retrofittable coding element 35 or 35a (FIG. 5) in the form of a coding comb, with a coding hole of a coding element created by a broken-out coding tooth being opposite to a coding tooth of the mating element comes to allow a correct pairing.

Abstract

A shielded plug connector includes at least one shielded cable having a cable shielding, a plug or socket insert having a metal collar, and a one-piece, one-shell, metal shielding housing. The shielding housing has a plug side at which the plug or socket insert is disposed. The plug side has an end surface and bearing points for the metal collar being recessed inwardly relative to the plug-side end surface, for end-surface contacting of the shielding housing with an appliance wall only at the plug-side end surface. The shielding housing has a connection side with a connection region for connecting the at least one shielded cable. The connection region has a connection-side end and a transverse wall. The transverse wall is recessed inwardly relative to the connection-side end, it has at least one lead-through formed therein and it is in direct end contact with the cable shielding.

Description

Die Erfindung betrifft einen abgeschirmten, ein metallenes Schirmgehäuse aufweisenden Steckverbinder, an dem anschlußseitig mindestens ein abgeschirmtes Kabel angeschlossen und steckerseitig ein einen Metallkragen aufweisender Steckeroder Buchseneinsatz vorgesehen ist. Ein derartiger Steckverbinder ist aus dem DE-U-87 13 046 bekannt.The invention relates to a shielded connector having a metal shield housing, to which at least one shielded cable is connected on the connection side and a plug or socket insert having a metal collar is provided on the connector side. Such a connector is known from DE-U-87 13 046.

An den Steckverbinder als Bindeglied zwischen abgeschlossenen elektronischen Systemen und der Peripherie werden zunehmend höhere Anforderungen bezüglich elektromagnetischer Verträglichkeit gestellt. Die Entwicklung elektronischer Systeme ist durch eine immer höher werdende Verarbeitungsgeschwindigkeit, d.h. durch höhere Taktfrequenzen in digitalen Rechen- und Regelsystemen gekennzeichnet. Dadurch steigt die Sensibilität für hochfrequente Beeinflussungen stark an. Diese Störeinflüsse können zu Fehlfunktionen führen, die sich direkt auf die Qualität dieser Systeme auswirken. Andererseits gehen Störbeeinflussungen auch von elektronischen Systemen oder Geräten selbst aus, die mit steilflankigen hochfrequenten Signalen im Steuerungs- wie im Leistungsteil arbeiten. Um die gegenseitige Beeinflussung elektronischer Systeme untereinander zu reduzieren oder sogar völlig aufzuheben, kommt dem Steckverbinder als Schnittstellenelement zwischen einem abgeschlossenen elektronischen System und der Umgebung eine maßgebende Bedeutung zu. Für derartige Zwecke ist der aus dem DE-U-87 13 046 bekannte Steckverbinder vorgesehen. Dieser besitzt ein zweiteiliges Gehäuse, wobei zur elektrischen Schirmung die einzelnen Gehäuseteile innen bedeckende Schirmbleche vorgesehen sind, die beim Zusammenfügen des Gehäuses nicht unmittelbar, sondern jeweils durch Kontaktgabe mit dem in das Gehäuse eingefügten metallischen Stecker und mit einer Schirmung eines in das Gehäuse geführten Kabels elektrisch verbunden sind. Bei diesem Steckverbinder ist der metallische Steckerkörper mit seinem Kragen außen am Steckverbinder an der steckerseitigen Stirnseite des Gehäuseunterteiles angeordnet. Das Anschlußkabel ist mittels einer Klemmschelle mechanisch mit dem Gehäuseunterteil und elektrisch mit einem im Gehäuseunterteil angeordneten Schirmblech verbunden.The connector as a link between closed electronic systems and the periphery is subject to increasingly high demands with regard to electromagnetic compatibility. The development of electronic systems is characterized by an ever increasing processing speed, ie by higher clock frequencies in digital computing and control systems. This increases the sensitivity to high-frequency interference. These interferences can lead to malfunctions that have a direct impact on the quality of these systems. On the other hand, interference also comes from electronic systems or devices themselves, which work with steep-edged, high-frequency signals in the control and power sections. In order to reduce the mutual influence of electronic systems with one another or even to completely eliminate them, the connector is of crucial importance as an interface element between a closed electronic system and the environment. The connector known from DE-U-87 13 046 is provided for such purposes. This has a two-part housing, the individual housing parts on the inside covering shield plates are provided for electrical shielding, which when assembling the housing not directly, but are electrically connected by making contact with the metallic plug inserted into the housing and with a shield of a cable led into the housing. In this connector, the metal connector body is arranged with its collar on the outside of the connector on the connector-side end of the lower housing part. The connecting cable is mechanically connected to the lower housing part by means of a clamp and electrically to a shield plate arranged in the lower housing part.

Bei anderen auf dem Markt befindlichen Steckverbindern ist das Gehäuse aus zwei Halbschalen zusammengesetzt, zwischen denen geringe Spalte vorhanden sein können, welche die Schirmwirkung erheblich beeinflussen. Für derartige Gehäuse werden verschiedene Abschirmmaterialien verwendet, wie z.B. massiv gegossene Halbschalen aus Aluminium, in Kunststoffhalbschalen eingelegte Metallbleche oder metallisierte Kunststoffhalbschalen. Diese Halbschalen werden jeweils elektrisch mit dem Schirmgeflecht des Kabels und mit dem Metallkragen des eingebauten Steckers verbunden. Der Metallkragen des eingebauten Steckers wird dabei meist vorstehend an der Stirnseite des Gehäuses festgelegt. Demzufolge sind bei üblichen Steckerpaarungen mit einem Gegenstecker in der Hinter- oder Vorderwandmontage und einem Stecker im Gehäuse des Steckverbinders Spalte vorhanden, und zwar zwischen Gegenstecker und Wand bzw. Stecker und Gehäuse. Bei derartigen Steckverbindungen sind somit viele Ubergangsstellen vorhanden, wobei sich der Fließweg der an Masse abzuleitenden Störsignale wie folgt ergibt: Kabelschirmgeflecht - Gehäusewand - Metallkragen des Steckers -Metallkragen des Gegensteckers - Gerätewand (Masse). Hierbei können Oberflächenströme in das Innere von Geräten geleitet werden und/oder Störbeeinflussungen von dem Gerät selbst ausgehen.In the case of other plug connectors on the market, the housing is composed of two half-shells, between which there may be small gaps which significantly influence the shielding effect. Various shielding materials are used for such housings, such as solid cast aluminum half-shells, metal sheets inserted in plastic half-shells or metallized plastic half-shells. These half shells are each electrically connected to the braided shield of the cable and to the metal collar of the built-in connector. The metal collar of the built-in connector is usually fixed above on the front of the housing. As a result, there are gaps in conventional connector pairs with a mating connector in the rear or front wall mounting and a connector in the housing of the connector, namely between mating connector and wall or connector and housing. With such plug connections, there are therefore many transition points, the flow path of the interference signals to be derived to ground being as follows: cable shield braid - housing wall - metal collar of the plug - metal collar of the mating plug - device wall (ground). Surface currents can be conducted into the interior of devices and / or interference can originate from the device itself.

Der Erfindung liegt die Aufgabe zugrunde, einen Steckverbinder der eingangs genannten Art zu schaffen, der erhöhte Schirmungsanforderungen von z.B. > 80 dB erfüllt.The invention has for its object to provide a connector of the type mentioned, the increased shielding requirements of e.g. > 80 dB fulfilled.

Diese Aufgabe wird erfindungsgemäß durch folgende Merkmale gelöst:

  • a) das Schirmgehäuse ist einteilig und einschalig ausgebildet,
  • b) die Auflagestelle an dem Schirmgehäuse für den Metallkragen des Stecker- oder Buchseneinsatzes ist gegenüber der steckerseitigen Stirnseite des Schirmgehäuses nach innen zurückgesetzt, so daß ausschließlich über die steckerseitige Stirnseite eine stirnseitige Kontaktierung des Schirmgehäuses an einer Gerätewand erfolgt,
  • c) das Schirmgehäuse ist im Anschlußbereich des Kabels mit einer gegenüber der anschlußseitigen Stirnseite nach innen zurückgesetzten, mit mindestens einer Durchführung versehenen Querwand ausgebildet,
  • d) zwischen der Kabelabschirmung und der Querwand ist ein direkter Stirnkontakt hergestellt.
This object is achieved according to the invention by the following features:
  • a) the shield housing is made in one piece and with one shell,
  • b) the contact point on the shield housing for the metal collar of the plug or socket insert is set back inwards with respect to the front face of the shield housing, so that the shield housing is contacted on the front of a device wall exclusively via the front face,
  • c) the shield housing is formed in the connection area of the cable with a transverse wall which is recessed inwards with respect to the connection-side end face and provided with at least one bushing,
  • d) a direct face contact is made between the cable shield and the transverse wall.

Bei einem derartigen Steckverbinder ist die Anzahl der Übergangsstellen auf ein Minimum reduziert. Das Metallgehäuse des Steckverbinders ist einteilig und einschalig ausgebildet. Die Kontaktgabe zwischen dem Kabelschirm und dem Gehäuse des Steckverbinders erfolgt durch einen direkten Stirnkontakt, d.h. der Kabelschirm steht nicht wie bei angeschraubten Klemmschellen nur teilweise bzw. über Zwischenübergänge, sondern ringsum und ohne Zwischenübergänge in direktem Kontakt mit dem Schirmgehäuse. Weiterhin ist eine stirnseitige Kontaktierung vom Gehäuse des Steckverbinders zu einer Gerätewand vorgesehen, so daß ein ungehinderter Fluß von Oberflächenströmen gewährleistet ist. Durch diese Maßnahmen wird ein Steckverbinder mit wenigen, spaltfreien elektrischen und mechanischen übergängen geschaffen, so daß der Steckverbinder erhöhte Schirmungsanforderungen erfüllt. Darüberhinaus läßt sich ein derartiger Steckverbinder mit einem einfachen Aufbau, montagefreundlich und kostengünstig realisieren.With such a connector, the number of transition points is reduced to a minimum. The metal housing of the connector is made in one piece and with one shell. The contact between the cable shield and the housing of the connector is made by a direct face contact, ie the cable shield is not only partially or via intermediate transitions as with screwed clamps, but all around and without intermediate transitions in direct contact with the shield housing. Furthermore, an end-side contact from the housing of the connector to a device wall is provided, so that an unimpeded flow of surface currents is ensured. These measures create a connector with few, gap-free electrical and mechanical transitions, so that the connector increased shielding requirements met. In addition, such a connector with a simple structure, easy to install and inexpensive to implement.

Bei einem derartigen Steckverbinder ist es zweckmäßig, wenn die Auflagestelle für den Metallkragen des Stecker- oder Buchseneinsatzes soweit nach innen zurückgesetzt ist, daß sich der Stecker- oder Buchseneinsatz weitgehend innerhalb des Schirmgehäuses befindet. Dadurch ist der Stecker- oder Buchseneinsatz weitgehend mechanisch und elektrisch geschützt innerhalb des Schirmgehäuses angeordnet.With such a connector, it is expedient if the support point for the metal collar of the plug or socket insert is set back so far that the plug or socket insert is largely inside the shield housing. As a result, the plug or socket insert is arranged largely mechanically and electrically protected within the shield housing.

Im Hinblick auf die Schirmungswirkung ist es vorteilhaft, wenn die Innenweite des Schirmgehäuses am steckerseitigen Ende so gewählt ist, daß bei einem an einer Gerätewand befestigten Steckverbinder der Stecker- oder Buchseneinsatz, dessen Gegenstecker an der Gerätewand und die Durchtrittsöffnung der Gerätewand seitlich von dem steckerseitigen Gehäuserand umgeben sind. Damit sind sowohl Stecker- oder Buchseneinsatz und Gegenstecker als auch die Ausnehmung in der Gerätewand elektrisch abgeschirmt umkapselt.With regard to the shielding effect, it is advantageous if the inside width of the shield housing at the plug-side end is selected such that, in the case of a connector fastened to a device wall, the plug or socket insert, its mating connector on the device wall and the passage opening of the device wall laterally from the plug-side housing edge are surrounded. This encapsulates the plug or socket insert and mating connector as well as the recess in the device wall in an electrically shielded manner.

Zum Ausgleich von gegebenenfalls auftretenden, nicht völlig ebenen stirnseitigen Auflagen eines Gehäuserandes an einer Gerätewand und zur Schaffung einer maximalen Anzahl von Kontaktierungspunkten in diesem Bereich kann es zweckmäßig sein, wenn zwischen der steckerseitigen Stirnseite des Schirmgehäuses und der Gerätewand ein Kontaktblech angeordnet ist. Ein derartiges Kontaktblech kann z.B. aus einem gefiederten Federblech bestehen.To compensate for any occurring, not completely flat front-side supports of a housing edge on a device wall and to create a maximum number of contact points in this area, it may be expedient if a contact plate is arranged between the plug-side end face of the shield housing and the device wall. Such a contact plate can e.g. consist of a feathered spring plate.

Bei einem erfindungsgemäßen Steckverbinder erfolgt der Anschluß des Kabels in zweckmäßiger Weise mittels einer in den Anschlußbereich des Schirmgehäuses einschraubbaren Überwurfmutter. Hierbei läßt sich eine stirnseitige Kontaktierung der Kabelabschirmung an der Querwand des Schirmgehäuses in einfacher Weise dadurch herstellen, daß über die freigelegte Kabelabschirmung eine Hülse geschoben ist, über welche an einer Seite die Kabelabschirmung um 180° umgestülpt ist und an welcher an der anderen Seite die Überwurfmutter angreift.In the case of a plug connector according to the invention, the cable is expediently connected by means of a union nut which can be screwed into the connection area of the shield housing. Here, an end-face contact can be made produce the cable shield on the transverse wall of the shield housing in a simple manner by sliding a sleeve over the exposed cable shield, over which the cable shield is turned over on one side by 180 ° and on which the union nut engages on the other side.

Wenn als Befestigungselemente für die Befestigung des Schirmgehäuses an einer Gerätewand zwei in Steckrichtung verschiebbar, jedoch unverlierbar am Schirmgehäuse angeordnete Schrauben vorgesehen sind, so kann der Steckverbinder beim Verbinden mit dem Gegenstecker erst frei und ohne gleichzeitige Beeinflussung durch den Befestigungsvorgang gesteckt und nach hergestellter Steckverbindung anschließend mittels der Befestigungselemente verriegelt werden.If there are two screws arranged in the plug-in direction, but cannot be lost on the screen housing, as fasteners for attaching the shield housing to a device wall, the connector can only be inserted freely when connecting to the mating connector and without being influenced by the fastening process and then after the plug connection has been made, by means of the fasteners are locked.

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 anhand eines in der Zeichnung dargestellten Ausführungsbeispiels eines abgeschirmten Steckverbinders im folgenden näher beschrieben. Es zeigen

  • Fig. 1 einen Steckverbinder mit Schirmgehäuse und Kabeleinführung sowie einen an einer Gerätewand vorgesehenen Gegenstecker jeweils im Schnitt vor der Steckverbindung,
  • Fig. 2 ebenfalls im Schnitt einen an einer Gerätewand befestigten Steckverbinder,
  • Fig. 3 den Anschluß eines Kabels an dem Steckverbinder und die Kontaktierung der Kabelabschirmung in dem Schirmgehäuse in vergrößerter Darstellung,
  • Fig. 4 eine Ausführungsvariante des Kabelanschlusses und
  • Fig. 5 in perspektivischer Darstellung zwei Codierelemente.
The invention is described below with reference to an embodiment of a shielded connector shown in the drawing. Show it
  • 1 is a connector with shield housing and cable entry and a mating connector provided on a device wall, each in section before the plug connection,
  • 2 also in section a connector attached to a device wall,
  • 3 shows the connection of a cable to the connector and the contacting of the cable shield in the shield housing in an enlarged view,
  • Fig. 4 shows an embodiment variant of the cable connection and
  • Fig. 5 in a perspective view two coding elements.

Der Steckverbinder besitzt ein metallenes Schirmgehäuse 1 aus einem einteiligen und einschaligen, insbesondere aus Aluminium bestehenden Druckgußteil. Das Schirmgehäuse 1 ist trichterförmig gestaltet mit einem weiteren steckerseitigen Bereich 2 und einem demgegenüber engeren, durch eine Abstufung gebildeten Anschlußbereich 3. In diesem Anschlußbereich ist mindestens ein abgeschirmtes Kabel 4 in später noch genauer beschriebener Weise angeschlossen.The connector has a metal shield housing 1 made of a one-piece and one-shell die-cast part, in particular made of aluminum. The shield housing 1 is funnel-shaped with a further plug-side area 2 and, on the other hand, a narrower connection area 3 formed by a gradation. In this connection area at least one shielded cable 4 is connected in a manner described in more detail later.

Im steckerseitigen Bereich 2 ist ein einen Metallkragen 5 aufweisender Stecker- oder Buchseneinsatz 6 vorgesehen, der mit dem Kabel 4 verbunden ist.In the area 2 on the plug side, a plug or socket insert 6 having a metal collar 5 is provided, which is connected to the cable 4.

Die Auflagestelle 17 an dem Schirmgehäuse 1 für den Metallkragen 5 des Stecker- oder Buchseneinsatzes 6 ist gegenüber der steckerseitigen Stirnseite 7 des Schirmgehäuses soweit nach innen zurückgesetzt, daß sich der Stecker- oder Buchseneinsatz 6 weitgehend innerhalb des Schirmgehäuses befindet. Deshalb kann dann ausschließlich über die steckerseitige Stirnseite 7 des Schirmgehäuses eine stirnseitige Kontaktierung des Schirmgehäuses an einer Gerätewand 8 erfolgen. Die Auflagestelle 17 an dem Schirmgehäuse für den Metallkragen 5 des Stecker- oder Buchseneinsatzes 6 ist zweckmäßigerweise von zwei einander gegenüberliegenden Stufen an den Innenwänden des Schirmgehäuses gebildet.The support point 17 on the shield housing 1 for the metal collar 5 of the plug or socket insert 6 is so far inward compared to the plug end 7 of the shield housing that the plug or socket insert 6 is largely within the shield housing. For this reason, an end-side contacting of the shield housing on a device wall 8 can then take place exclusively via the plug-side end face 7 of the shield housing. The support point 17 on the shield housing for the metal collar 5 of the plug or socket insert 6 is expediently formed by two mutually opposite steps on the inner walls of the shield housing.

Als Befestigungselemente für die lösbare Befestigung des Schirmgehäuses 1 an der Gerätewand 8 sind zwei Schrauben 9 vorgesehen und in Steckrichtung verschiebbar, jedoch unverlierbar am Schirmgehäuse angeordnet. Die Schrauben 9 sind in Längsrichtung mit vier unterschiedlichen Zonen ausgebildet. Diese Zonen sind ein z.B. geschlitzter Schraubenkopf 10 zum Anschrauben, eine zylindrische Halszone 11, ein Außengewinde 12, dessen Durchmesser größer ist als der der Halszone, ferner ein kleines Außengewinde 13 zum Einschrauben in Gewindehülser 14 an der Gerätewand 8, wobei das Außengewinde 13 durch Ausnehmungen 15 des Metallkragens 5 des Stecker- oder Buchseneinsatzes 6 paßt.Two screws 9 are provided as fastening elements for the detachable fastening of the shield housing 1 to the device wall 8 and can be displaced in the plugging direction, but are captively arranged on the shield housing. The screws 9 are formed in the longitudinal direction with four different zones. These zones are, for example, a slotted screw head 10 for screwing on, a cylindrical neck zone 11, an external thread 12 whose diameter is larger than that of the neck zone, and also a small external thread 13 for screwing into threaded sleeves 14 on the device wall 8, the external thread 13 being provided with recesses 15 of the metal collar 5 of the plug or socket insert 6 fits.

Die Unterbringung der Schrauben 9 im Schirmgehäuse ist hier so vorgesehen, daß seitlich des Stecker- oder Buchseneinsatzes 6, also zwischen diesem und der Innenseite des Schirmgehäuses 1, jeweils ein ausreichend großer Zwischenraum zum Durchtritt der Schrauben 9 vorhanden ist.The accommodation of the screws 9 in the shield housing is provided here so that a sufficiently large space for the passage of the screws 9 is provided on the side of the plug or socket insert 6, that is between the latter and the inside of the shield housing 1.

Die Fixierung des Stecker- oder Buchseneinsatzes 6 in Steckrichtung erfolgt seitlich durch zwei einander diagonal gegenüberliegende Schrauben 16, die radial zwischen der Auflagestelle 17 und der steckerseitigen Stirnseite 7 des Schirmgehäuse in dessen Wand eingeschraubt sind und eine schwimmende, selbstsuchende Lagerung des Stecker- oder Buchseneinsatzes zu dem an der Gerätewand 8 angeordneten Gegenstecker 18 ermöglichen.The plug or socket insert 6 is fixed laterally in the plug-in direction by two diagonally opposite screws 16, which are screwed radially between the support point 17 and the plug-side end face 7 of the shield housing into its wall and a floating, self-searching mounting of the plug or socket insert enable the mating connector 18 arranged on the device wall 8.

In dem in Fig.2 gezeigten, an der Gerätewand 8 befestigten Zustand des Steckverbinders sind Stecker- oder Buchseneinsatz 6 und Gegenstecker 18 miteinander gesteckt und elektrisch verbunden. Die steckerseitige Stirnseite 7 des Schirmgehäuses 1 kontaktiert dabei stirnseitig an der Gerätewand 8, wobei die Innenweite des Schirmgehäuses 1 am steckerseitigen Ende so gewählt ist, daß der Stecker- oder Buchseneinsatz 6, dessen Gegenstecker 18 an der Gerätewand 8 und die Durchtrittsöffnung 19 der Gerätewand seitlich von dem steckerseitigen Gehäuserand umgeben sind. Auf diese Weise kommt eine komplette Umkapselung der Steckverbindung für elektromagnetische Felder zustande.In the state of the plug connector shown in FIG. 2 and fastened to the device wall 8, the plug or socket insert 6 and mating plug 18 are plugged together and electrically connected. The plug-side end face 7 of the shield housing 1 makes contact on the end face on the device wall 8, the inside width of the shield housing 1 at the plug end being selected such that the plug or socket insert 6, its mating connector 18 on the device wall 8 and the passage opening 19 of the device wall laterally are surrounded by the edge of the housing. In this way, the connector is completely encapsulated for electromagnetic fields.

Zur Kontaktverbesserung zwischen dem Schirmgehäuse 1 und der Gerätewand 8, insbesondere bei nicht ganz ebener Auflage oder bei korrosionsanfälliger oder -gefährdeter Gerätewand, kann zwischen der steckerseitigen Stirnseite 7 des Schirmgehäuses 1 und der Gerätewand 8 ein zusätzliches Kontaktblech 20 angeordnet werden, welches mit entsprechenden Ausschnitten z.B. zur Durchführung von Befestigungselementen versehen ist.In order to improve the contact between the shield housing 1 and the device wall 8, in particular if the support is not completely level or if the device wall is susceptible or at risk of corrosion, an additional contact plate 20 can be arranged between the plug-side end face 7 of the shield housing 1 and the device wall 8, which, for example, has corresponding cutouts is provided for carrying fasteners.

Der Anschluß des Kabels 4 erfolgt nun in folgender Weise: Nachdem der Stecker- oder Buchseneinsatz 6 - wie in Fig.1 - im Schirmgehäuse montiert ist, wird das Kabel 4 in einer Durchführung 21 einer Querwand 22 zurückgeschoben, welche im Anschlußbereich 3 des Schirmgehäuses 1 quer zur Steckrichtung vorgesehen und gegenüber der anschlußseitigen Stirnseite 23 so nach innen zurückgesetzt ist, daß eine Anschlußbohrung 24 gebildet ist. Zwischen der Kabelabschirmung 25 und der Querwand 22 des Schirmgehäuses 1 ist mit Hilfe einer über den Kabelmantel 6 geschobenen, aus leitendem Material bestehenden Überwurfmutter 27 ein direkter Stirnkontakt hergestellt, wozu über die freigelegte Kabelabschirmung 25 eine Hülse 28, deren Innendurchmesser etwa dem Außendurchmesser des Kabels 4 über den Kabelmantel 26 entspricht, geschoben ist, und über welche an einer Seite die Kabelabschirmung 25 um 180° umgestülpt ist und an welcher an der anderen Seite die Überwurfmutter 27 angreift. Durch Festziehen der Überwurfmutter wird dann über die Hülse 28 die z.B. aus einem Drahtgeflecht bestehende Kabelabschirmung 25 stirnseitig an die Querwand 22 angedrückt und somit elektrisch kontaktiert.The cable 4 is now connected in the following way: After the plug or socket insert 6 - as in FIG. 1 - is mounted in the shield housing, the cable 4 is pushed back in a bushing 21 in a transverse wall 22 which is in the connection area 3 of the shield housing 1 provided transversely to the direction of insertion and is set back inwards relative to the connection-side end face 23 such that a connection bore 24 is formed. A direct end contact is made between the cable shield 25 and the transverse wall 22 of the shield housing 1 with the aid of a union nut 27 which is pushed over the cable sheath 6 and consists of conductive material, for which purpose a sleeve 28, the inside diameter of which is approximately the outside diameter of the cable 4, is exposed via the exposed cable shield 25 corresponds to the cable sheath 26, is pushed, and over which the cable shield 25 is turned over on one side by 180 ° and on which the union nut 27 engages on the other side. By tightening the union nut, the e.g. consisting of a wire mesh cable shield 25 pressed on the end face of the transverse wall 22 and thus electrically contacted.

Die Überwurfmutter 27 ist anschließend an den Gewindebereich 29 mit einem am Kabelmantel 26 anliegenden Hals 30 ausgebildet, der mit einer fensterförmigen Öffnung 31 versehen ist, in welche zur Zugentlastung des Kabels 4 ein Kabelbinder 32 eingesetzt und am Kabelmantel 26 festgelegt ist (Fig.3).The union nut 27 is then formed on the threaded region 29 with a neck 30 resting on the cable jacket 26, which is provided with a window-shaped opening 31, into which a cable tie 32 is inserted to relieve the strain on the cable 4 and is fixed on the cable jacket 26 (FIG. 3) .

In einer Ausführungsvariante nach Fig.4 ist über den Hals 30a der Überwurfmutter 27a ein zusätzlicher Schlauch 33 aus einem Schirmgeflecht geschoben und mittels eines Klemmringes 34 fest mit dem Hals 30a verbunden und kontaktiert. Diese Variante kann zur zusätzlichen Verbesserung der Abschirmwirkung eingesetzt werden. Das Innere des Schirmgehäuses 1 ist so ausgebildet, daß auch gefilterte Steckverbinder eingebaut werden können. Somit werden evtl. im Kabel induzierte Störsignale über den Filterstecker auch an Masse abgeleitet.In an embodiment variant according to FIG. 4, an additional hose 33 is pushed out of a braided shield over the neck 30a of the union nut 27a and is fixedly connected and contacted with the neck 30a by means of a clamping ring 34. This variant can be used to further improve the shielding effect. The inside of the shield housing 1 is designed so that filtered connectors can also be installed. Thus, possibly induced in the cable Interference signals are also diverted to ground via the filter connector.

Als Vorkehrung gegen eine falsch steckbare Kombination ist in den Steckverbinder auch eine Codierung integrierbar. Hierzu wird sowohl der Stecker- oder Buchseneinsatz 6 als auch der Gegenstecker 18 mit einem nachrüstbarem Codierelement 35 bzw. 35a (Fig.5) in Form eines Codierkammes versehen, wobei jeweils ein durch einen herausgebrochenen Codierzahn entstandenes Codierloch eines Codierelementes gegenüber einem Codierzahn des Gegenelementes zu liegen kommt, um eine richtige Paarung zu ermöglichen.As a precaution against an incorrectly pluggable combination, coding can also be integrated in the connector. For this purpose, both the plug or socket insert 6 and the mating connector 18 are provided with a retrofittable coding element 35 or 35a (FIG. 5) in the form of a coding comb, with a coding hole of a coding element created by a broken-out coding tooth being opposite to a coding tooth of the mating element comes to allow a correct pairing.

Claims (15)

  1. Screened plug connector having a metal screen housing (1), to which connector there is connected on the connection side at least one screened cable (4) and on which connector there is provided on the plug side a plug insert or a socket insert (6) having a metal shoulder (5), characterized by the following features:
    a) the screen housing (1) is of single-part and one-shell construction,
    b) the supporting point (17) on the screen housing (1) for the metal shoulder (5) of the plug insert or the socket insert (6) is retracted inwardly relative to the plug-side end face (7) of the screen housing (1) so that an end-face contact with the screen housing (1) on a device wall (8) is made exclusively by means of the plug-side end face (7),
    c) the screen housing (1) is constructed in the connection region (3) of the cable (4) with a cross-wall (22) which is retracted inwardly relative to the connection-side end face (23) and is provided with at least one bushing (21),
    d) a direct end-face contact is produced between the cable screening (25) and the cross-wall (22).
  2. Plug connector according to Claim 1, characterized in that the screen housing (1) consists of a diecast part, in particular of aluminium.
  3. Plug connector according to Claim 1 or 2, characterized in that the supporting point (17) for the metal shoulder (5) of the plug insert or the socket insert (6) is retracted inwardly to such an extent that the plug insert or the socket insert (6) is located largely inside the screen housing (1).
  4. Plug connector according to one of Claims 1 to 3, characterized in that there is provided between the plug insert or the socket insert (6) and the inside of the screen housing (1) in each case an intermediate space for bushing fastening elements (9) for fastening the screen housing (1) on a device wall (8).
  5. Plug connector according to one of the preceding claims, characterized in that the inner width of the screen housing (1) at the plug-side end is selected such that in a plug connector fastened on a device wall (8) the plug insert or the socket insert (6) whose counter-plug (18) on the device wall (8) and the passage opening (19) of the device wall (8) are laterally surrounded by the plug-side housing edge [lacuna].
  6. Plug connector according to one of the preceding claims, characterized in that the supporting point (17) on the screen housing (1) for the metal shoulder (5) of the plug insert or the socket insert (6) is formed by two mutually opposite steps on the inner walls of the screen housing (1).
  7. Plug connector according to one of the preceding claims, characterized in that for floating mounting of the plug insert or the socket insert (6) in the screen housing (1), screws which are diagonally opposite each other are provided and are screwed radially between the supporting point (17) and the plug-side end face (7) of the screen housing (1) into its wall.
  8. Plug connector according to one of the preceding claims, characterized in that a contact metal sheet (20) is arranged between the plug-side end face (7) of the screen housing and the device wall (8).
  9. Plug connector according to one of the preceding claims, characterized in that the cable (4) is connected by means of a union nut (27, 27a) which can be screwed into the connection region (3) of the screen housing (1).
  10. Plug connector according to Claim 9, characterized in that, for the purpose of making contact with the cable screening (25), a sleeve (28) is pushed over the stripped cable screening, over which sleeve (28) the cable screening (25) is turned back on the one side by 180° and on which the union nut (27, 27a) acts on the other side.
  11. Plug connector according to Claim 9 or 10, characterized in that the union nut (27, 27a) is constructed with a neck (30, 30a) which bears against the cable sheath.
  12. Plug connector according to Claim 11, characterized in that the neck (30) is provided with a window-shaped opening (31) into which a cable tie (32) is inserted as strain relief for the cable (4).
  13. Plug connector according to Claim 11, characterized in that an additional flexible tube (33) made of a braided screen is pushed over the neck (30a) of the union nut (27a) and is firmly connected to and makes contact with the neck (30a) by means of a clamping ring (34).
  14. Plug connector according to one of the preceding claims, characterized in that the plug insert or the socket insert (6) and the counterplug (18) are provided with a coding element (35, 35a).
  15. Plug connector according to one of the preceding claims, characterized in that two screws (9), displaceably arranged on the screen housing (1) in the direction of plugging but in a captive manner, are provided as fastening elements for fastening the screen housing (1) on a device wall (8).
EP92918788A 1991-10-21 1992-09-03 Shielded pin-and-socket connector Expired - Lifetime EP0609232B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9113082U DE9113082U1 (en) 1991-10-21 1991-10-21
DE9113082U 1991-10-21
PCT/EP1992/002037 WO1993008620A1 (en) 1991-10-21 1992-09-03 Shielded pin-and-socket connector

Publications (2)

Publication Number Publication Date
EP0609232A1 EP0609232A1 (en) 1994-08-10
EP0609232B1 true EP0609232B1 (en) 1995-05-24

Family

ID=6872461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92918788A Expired - Lifetime EP0609232B1 (en) 1991-10-21 1992-09-03 Shielded pin-and-socket connector

Country Status (6)

Country Link
US (1) US5411415A (en)
EP (1) EP0609232B1 (en)
JP (1) JPH07500219A (en)
AT (1) ATE123181T1 (en)
DE (2) DE9113082U1 (en)
WO (1) WO1993008620A1 (en)

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US6263679B1 (en) 2000-04-05 2001-07-24 Helix Technology Corporation Particulate dam for cryopump flange

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US6263679B1 (en) 2000-04-05 2001-07-24 Helix Technology Corporation Particulate dam for cryopump flange

Also Published As

Publication number Publication date
US5411415A (en) 1995-05-02
WO1993008620A1 (en) 1993-04-29
JPH07500219A (en) 1995-01-05
DE9113082U1 (en) 1993-02-18
DE59202369D1 (en) 1995-06-29
ATE123181T1 (en) 1995-06-15
EP0609232A1 (en) 1994-08-10

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