EP0814542B1 - Electrical socket - Google Patents

Electrical socket Download PDF

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Publication number
EP0814542B1
EP0814542B1 EP97109816A EP97109816A EP0814542B1 EP 0814542 B1 EP0814542 B1 EP 0814542B1 EP 97109816 A EP97109816 A EP 97109816A EP 97109816 A EP97109816 A EP 97109816A EP 0814542 B1 EP0814542 B1 EP 0814542B1
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EP
European Patent Office
Prior art keywords
socket
pot
sectors
plug
socket outlet
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
EP97109816A
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German (de)
French (fr)
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EP0814542A1 (en
Inventor
Frank Michael Claus
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ABB Patent GmbH
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ABB Patent GmbH
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Publication date
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Publication of EP0814542A1 publication Critical patent/EP0814542A1/en
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Publication of EP0814542B1 publication Critical patent/EP0814542B1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/56Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • H01R13/562Bending-relieving

Definitions

  • the invention relates to an electrical socket, in particular an earthed socket, for flush mounting with an integrated in a central disc Plug pot with a side wall for the positive reception of a plug.
  • Electrical sockets are known to serve for the detachable connection of electrical Consumers to an electrical supply network.
  • the sockets with protective conductor contact usually have a so-called Plug pot in which the plug engages in a form-fitting manner.
  • Plug pot in which the plug engages in a form-fitting manner.
  • the intended Handling of such a connector is provided in such a way that the plug is fed perpendicular to the socket and inserted into it and removed in a corresponding manner, that is, orthogonal to the bottom of the pot the plug pot is pulled out. It is envisaged that the Handling takes place directly on the connector itself and not on the attached one Connecting cable.
  • the plug is pulled out indirectly from the relevant socket by pulling the connecting cable.
  • the commercially available electrical connection cables are not for such a tensile stress are provided and the connection between the connection cable and the plug can be interrupted with such handling, especially when the tensile stress is not perpendicular to the socket but from the side, on the socket in question not inconsiderable bending moments due to friction of the plug in the connector pot, which lead to a further increase in the pull-out forces required.
  • This due to improper use of the plug-socket connection There may be damage to the socket, causing it to become detached the socket from the mounting surface is still the smallest problem.
  • Such a design advantageously avoids the disadvantageous Crossing the socket because the plug is critical before reaching one transverse force, which is used to pull the socket out of the mounting surface is required slides out of the plug pot, but this construction is comparative complicated design and correspondingly expensive to manufacture.
  • the side wall of the plug pot in is divided into at least four sectors, that at least two of these sectors in Plug direction are slidably arranged on slideways that are radially outward are inclined.
  • the plug pots of electrical sockets and the assigned connector a mutually compatible outer contour. Accordingly a plug engages positively when plugged in, and with earthed sockets also non-positively, in the assigned plug pot.
  • the invention avoids these additional forces by limiting the plug pot Pot wall is divided into sectors, which in the pulling direction of the plug are slidably arranged. Depending on the direction of the lateral tension of the connecting cable when the plug is pulled out, it slides Direction assigned sector with the connector as a result of each other Frictional forces until these frictional forces are eliminated. This happens by the divergence of the sectors, the attacking forces due to the design are always smaller than the holding forces of the socket in the mounting wall.
  • the Protective conductor brackets provided in pairs are supported on the sectors and this gives the necessary contact force and that when sliding out sectors concerned, the opening angle of the protective conductor bracket increases and conversely the contact force is reduced so that the plug can slide out easily can.
  • the solution according to the invention is compared to the proposed one "Ball variant" easier to manufacture and easier to assemble because of the the slidable sectors provided by itself or together with a central disc is used as a structural unit, the socket base can be taken from a conventional series.
  • each of the movably arranged Sectors from a rest position, in which all sectors at the bottom of the pot abut, movable into an end position away from the bottom of the pot. It is provided that in the rest position all sectors are flush with the connector pot limit.
  • each sector is movably arranged held by a guide on the central disc on a slide, the radially outwardly slideways for the movably arranged Sectors are not linear but curved outwards uniformly.
  • the radius of curvature of the guide is advantageously greater than or equal to that Diameter of the plug pot.
  • the course can be used as a guide for the slideways that serve to move the sectors parabolically be curved on the outside with a decreasing radius of curvature towards the edge.
  • the guides are of this type provided that they are either arranged concealed or on the connector side the assigned movably arranged sectors of the plug socket flush to lock.
  • Another embodiment provides that the guides on the central disc are integrally formed and that the central disc on the plug side with the movably arranged Sectors of the connector pot are flush with each other.
  • a useful training provides that each moving sector of one Return spring is applied in the direction of its rest position, so that after removal the sectors moved forward on the plug side then automatically take their rest position.
  • the response behavior of the movably arranged sectors can be set so that only from a certain transverse stress on the socket as a result of improper operation the plug or the connecting cable connected to it, the stressed sector leaves its position.
  • Design of the socket according to the invention is independent of the type of the respective connector, that is, forehead connector or angled connector. Even with angled plugs, where the cable outlet is provided to the side is the function guaranteed the socket of the invention.
  • Fig. 1 is a socket 10 according to the invention with a frame 12 and one Device base 14 shown in longitudinal section.
  • the socket 10 which is used as an earthed socket is designed for flush mounting, has a plug pot 16 with a pot bottom 17.
  • the socket 12 is in a wall socket 18 used in a mounting surface 11 and for receiving a corresponding shaped protective contact plug 20, as shown in Fig. 2 or 3, with grooves 22 and with protective conductor contact springs 24 and with pin insertion openings 25 provided, through which the plug pins 23 of the plug in contact with the here Plug contacts not shown come.
  • the frame 12, which comprises the plug pot 16, has a curved edge which bears against the mounting surface 11.
  • At least on the inside of the frame 12 two diametrically opposite, to the insertion side slidable sectors 26, 28 on which the grooves 22 and protective conductor contact springs 24 are molded.
  • These sectors 26, 28 are each on guides 30 held, which are integrally formed on the frame 12.
  • the guides 30 serve for the sectors 26, 28 guided thereon as slideways 32, which with increasing Distance from the bottom of the pot 17 are inclined radially outward, so that on this Slideways 32 slidably guided sectors 26, 28 when sliding out thereby simultaneously expanding the limited plug socket 16 in diameter.
  • Either on the frame 12 and on the slidable sectors 26, 28 there are retaining cams 34, 36 integrally formed, between each of which a return spring 38 is arranged is, which applies the assigned sector 26, 28 to its rest position.
  • the socket of FIG. 1 with an inserted plug 20 is a connecting line 21 shown in longitudinal section, the sectional view, just as in Fig. 1 and in Fig. 3 only the details essential to the invention reproduces, that is, the other details already known in the prior art are not shown in detail. Otherwise, the same characteristics with the the same reference numerals as in Fig. 1, that is, they apply unless they are otherwise stated, the corresponding explanations given for FIG. 1.
  • FIG. 3 shows the arrangement according to FIG. 2, however, on it Connection line 21 pulled connector 20. It can be seen that the According to the direction of pull, a small piece of socket 10 is already in place has left and that the connector pins 23 are already out of the connector insertion openings 25 are pulled out and the plug 20 one to the bottom of the pot 17 takes an inclined position. The longitudinal axis of the plug 20 is corresponding the direction of pull of the connecting line 21 aligned, so that this train direction closest slidable sector 28 corresponding to this pull-out direction has also moved away from the bottom 17 of the pot. This is the assigned Return spring 38 compressed.
  • the slideways 32 are preferably curved, according to an advantageous embodiment of the invention, the radius of the curve with increasing Distance from the bottom of the pot 17 becomes smaller and, for example, a corresponding one parabolic curve follows. This is the previously described Separation of plug 20 and socket 10 favors, as this makes it very quick Widening of the plug pot with the corresponding tensile stress on the Connector 20 takes place.

Abstract

The socket (10) has a plug pot (16) integrated into a frame (12) with a side wall for the tight fit of a plug (20). The side wall of the plug pot is divided into at least four sectors (26,28). At least two of the sectors can slide in the plug direction and their slide paths (32) are inclined radially outwards with increasing distance from the pot base (17). Each of the movable sectors can be moved from a rest position, in which all sectors contact the pot base, into an end position remote from the pot base.

Description

Die Erfindung betrifft eine elektrische Steckdose, insbesondere Schutzkontaktsteckdose, für den Unterputzeinbau mit einem in einer Zentralscheibe integrierten Steckertopf mit einer Seitenwand zur formschlüssigen Aufnahme eines Steckers.The invention relates to an electrical socket, in particular an earthed socket, for flush mounting with an integrated in a central disc Plug pot with a side wall for the positive reception of a plug.

Elektrische Steckdosen dienen bekannterweise zum lösbaren Anschluß elektrischer Verbraucher an ein elektrisches Versorgungsnetz. Hierbei werden die an den jeweiligen Anschlußleitungen befindlichen Stecker in die Steckdose eingeführt und kraft- und formschlüssig darin gehalten.Electrical sockets are known to serve for the detachable connection of electrical Consumers to an electrical supply network. Here, the to respective connector cables inserted into the socket and held in it positively and positively.

Die Steckdosen mit Schutzleiterkontakt weisen in der Regel einen sogenannten Steckertopf auf, in welchen der Stecker formschlüssig eingreift. Dabei ist die bestimmungsgemäße Handhabung einer solchen Steckverbindung derart vorgesehen, daß der Stecker jeweils lotrecht zur Steckdose zugeführt und darin eingesteckt wird und in entsprechender Weise wieder entfernt wird, das heißt orthogonal zum Topfboden des Steckertopfes herausgezogen wird. Dabei ist vorgesehen, daß die Handhabung jeweils unmittelbar am Stecker selbst erfolgt und nicht am daran befestigten Anschlußkabel.The sockets with protective conductor contact usually have a so-called Plug pot in which the plug engages in a form-fitting manner. Here is the intended Handling of such a connector is provided in such a way that the plug is fed perpendicular to the socket and inserted into it and removed in a corresponding manner, that is, orthogonal to the bottom of the pot the plug pot is pulled out. It is envisaged that the Handling takes place directly on the connector itself and not on the attached one Connecting cable.

In der Praxis ist jedoch häufig zu beobachten, daß das Herausziehen des Steckers aus der betreffenden Steckdose mittelbar durch Ziehen am Anschlußkabel erfolgt. Abgesehen davon, daß die handelsüblichen elektrischen Anschlußkabel nicht für eine solche Zugbeanspruchung vorgesehen sind und die Verbindung zwischen dem Anschlußkabel und dem Stecker hierdurch unterbrochen werden kann, wirken bei einer derartigen Handhabung, insbesondere wenn die Zugbeanspruchung nicht senkrecht zur Steckdose sondern von der Seite erfolgt, auf die betreffende Steckdose nicht unerhebliche Biegemomente infolge Reibung des Steckers in dem Stekkertopf, die zu einer weiteren Erhöhung der erforderlichen Auszugkräfte führen. Diese durch nicht bestimmungsgemäßen Gebrauch der Stecker-Steckdosen-Verbindung kann es zu Schäden an der Steckdose kommen, wobei das Herauslösen der Steckdose aus der Montagefläche noch das kleinste Problem ist.In practice, however, it is often observed that the plug is pulled out indirectly from the relevant socket by pulling the connecting cable. Apart from the fact that the commercially available electrical connection cables are not for such a tensile stress are provided and the connection between the connection cable and the plug can be interrupted with such handling, especially when the tensile stress is not perpendicular to the socket but from the side, on the socket in question not inconsiderable bending moments due to friction of the plug in the connector pot, which lead to a further increase in the pull-out forces required. This due to improper use of the plug-socket connection There may be damage to the socket, causing it to become detached the socket from the mounting surface is still the smallest problem.

Um derartigen Schäden vorzubeugen und einen sicheren Gebrauch zu gewährleisten ist in der DE 195 47 879 A1 eine Steckdose mit einem in einer dreh- und schwenkbeweglichen Kugelführung gelagerten Steckertopf vorgeschlagen worden, bei welcher sich der Steckertopf selbsttätig in Zugrichtung ausrichtet und so die bei herkömmlichen Steckdosen auftretenden Querkräfte beim schräglaufenden Anschlußkabel zu vermeiden.To prevent such damage and to ensure safe use is in DE 195 47 879 A1 a socket with one in a rotating and pivoting ball guide mounted plug pot has been proposed in which the plug pot aligns itself automatically in the pulling direction and thus the at conventional sockets occurring transverse forces when the connection cable runs at an angle to avoid.

Eine derartige Gestaltung vermeidet zwar in vorteilhafter Weise die nachteilige Querbeanspruchung der Steckdose, da der Stecker vor Erreichen einer als kritisch anzusehenden Querkraft, die zum Herausreißen der Steckdose aus der Montagefläche erforderlich ist, aus dem Steckertopf gleitet, doch ist diese Konstruktion vergleichsweise kompliziert gestaltet und entsprechend kostenaufwendig bei der Herstellung.Such a design advantageously avoids the disadvantageous Crossing the socket because the plug is critical before reaching one transverse force, which is used to pull the socket out of the mounting surface is required slides out of the plug pot, but this construction is comparative complicated design and correspondingly expensive to manufacture.

Ausgehend von diesem Stand der Technik ist es daher Aufgabe der Erfindung, eine Steckdose der eingangs genannten Art zu schaffen, die einfach gestaltet ist, unzulässige Querbelastungen der Steckdose vermeidet und günstig herzustellen ist.Based on this prior art, it is therefore an object of the invention to To create a socket of the type mentioned, which is simple, inadmissible Avoids transverse loads on the socket and is inexpensive to manufacture.

Dies Aufgabe wird gelöst durch die kennzeichnenden Merkmale des Patentanspruchs 1. Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by the characterizing features of the patent claim 1. Further advantageous refinements and developments of the invention are the subject of the subclaims.

Gemäß der Erfindung ist vorgesehen, daß die Seitenwand des Steckertopfes in wenigstens vier Sektoren unterteilt ist, daß wenigstens zwei dieser Sektoren in Steckrichtung gleitbeweglich auf Gleitbahnen angeordnet sind, die radial nach außen geneigt sind. According to the invention it is provided that the side wall of the plug pot in is divided into at least four sectors, that at least two of these sectors in Plug direction are slidably arranged on slideways that are radially outward are inclined.

Bekannterweise besitzen die Steckertöpfe von elektrischen Steckdosen und die zugeordneten Stecker eine zueinander kompatible Außenkontur. Dementsprechend greift ein Stecker beim Einstecken formschlüssig, und bei Schutzkontaktsteckdosen auch kraftschlüssig, in den zugeordneten Steckertopf ein.As is known, the plug pots of electrical sockets and the assigned connector a mutually compatible outer contour. Accordingly a plug engages positively when plugged in, and with earthed sockets also non-positively, in the assigned plug pot.

Zum Entnehmen des Steckers muß, wie bereits erläutert, zum einen auf eine lotrechte Kraftangriffsrichtung in bezug auf den Topfboden geachtet werden und zum anderen genügend Kraft aufgebracht werden, um die Haltekraft der Kontaktfedern an den Steckerstiften wie auch an den Schutzleiterkontakten zu überwinden. Bereits leichte Verkantungen verursachen zusätzliche Kräfte infolge Reibung, welche der Ausziehkraft entgegengerichtet sind.To remove the plug, as already explained, must on the one hand be perpendicular Force application direction with respect to the bottom of the pot should be taken into account other enough force is applied to the holding force of the contact springs on the connector pins as well as on the protective conductor contacts. Already slight canting cause additional forces due to friction, which are opposite to the pull-out force.

Die Erfindung vermeidet diese zusätzlichen Kräfte, indem die den Steckertopf begrenzende Topfwandung in Sektoren unterteilt ist, welche in Zugrichtung des Stekkers gleitbeweglich angeordnet sind. Je nach Richtung der seitlichen Zugbeaufschlagung des Anschlußkabels beim Herausziehen des Steckers gleitet der dieser Richtung zugeordnete Sektor mit dem Stecker infolge untereinander auftretender Reibungskräfte soweit mit, bis diese Reibungskräfte aufgehoben sind. Dies erfolgt durch das Auseinandergehen der Sektoren, wobei die angreifenden Kräfte konstruktionsbedingt stets kleiner sind als die Haltekräfte der Steckdose in der Montagewand.The invention avoids these additional forces by limiting the plug pot Pot wall is divided into sectors, which in the pulling direction of the plug are slidably arranged. Depending on the direction of the lateral tension of the connecting cable when the plug is pulled out, it slides Direction assigned sector with the connector as a result of each other Frictional forces until these frictional forces are eliminated. this happens by the divergence of the sectors, the attacking forces due to the design are always smaller than the holding forces of the socket in the mounting wall.

Hierbei kann gemäß einer Ausgestaltung der Erfindung vorgesehen sein, daß die paarweise vorgesehenen Schutzleiterbügel sich an den Sektoren abstützen und hierdurch die erforderliche Kontaktkraft erhalten und daß beim Herausgleiten der betreffenden Sektoren sich der Öffnungswinkel der Schutzleiterbügel vergrößert und umgekehrt die Kontaktkraft verringert, so daß der Stecker leicht herausgleiten kann.It can be provided according to an embodiment of the invention that the Protective conductor brackets provided in pairs are supported on the sectors and this gives the necessary contact force and that when sliding out sectors concerned, the opening angle of the protective conductor bracket increases and conversely the contact force is reduced so that the plug can slide out easily can.

Gemäß einer zweckmäßigen Ausführungsform kann vorgesehen sein, daß die dem Schutzleiterbügel benachbarten beweglichen Sektoren mit dem nächstliegenden Schutzleiterbügel derart zusammenarbeiten, daß beim Herausgleiten des betreffenden Sektors infolge des Ziehens an dem eingeführten Stecker anschließenden Anschlußkabel der Öffnungswinkel des Schutzleiterbügels vergrößert wird, so daß der eingeführte Stecker ungehindert herausgleiten kann. According to an expedient embodiment, it can be provided that the Protective conductor bar adjacent moving sectors with the closest Cooperate the protective conductor bracket in such a way that when the relevant one slides out Sector due to pulling on the inserted connector Connection cable the opening angle of the protective conductor bracket is increased so that the inserted plug can slide out freely.

Gleichzeitig ist die erfindungsgemäße Lösung im Vergleich mit der vorgeschlagenen "Kugelvariante" einfacher herzustellen und leichter zu montieren, da der mit den gleitbeweglichen Sektoren versehene Steckertopf für sich oder gemeinsam mit einer Zentralscheibe als Baueinheit zum Einsatz kommt, wobei der Steckdosensockel aus einer herkömmlichen Baureihe entnommen sein kann.At the same time, the solution according to the invention is compared to the proposed one "Ball variant" easier to manufacture and easier to assemble because of the the slidable sectors provided by itself or together with a central disc is used as a structural unit, the socket base can be taken from a conventional series.

Gemäß einer vorteilhaften Weiterbildung der Erfindung ist jeder der beweglich angeordneten Sektoren aus einer Ruhestellung, in welcher alle Sektoren am Topfboden anliegen, in eine vom Topfboden entfernte Endstellung bewegbar. Dabei ist vorgesehen, daß in Ruhestellung alle Sektoren bündig miteinander den Steckertopf begrenzen.According to an advantageous development of the invention, each of the movably arranged Sectors from a rest position, in which all sectors at the bottom of the pot abut, movable into an end position away from the bottom of the pot. It is provided that in the rest position all sectors are flush with the connector pot limit.

Gemäß einer bevorzugten Ausführungsform ist jeder beweglich angeordnete Sektor von einer an der Zentralscheibe angeordneten Führung auf einer Gleitbahn gehalten, wobei die radial nach außen geneigte Gleitbahnen für die beweglich angeordneten Sektoren nicht linear sondern gleichförmig nach außen gekrümmt sind.According to a preferred embodiment, each sector is movably arranged held by a guide on the central disc on a slide, the radially outwardly slideways for the movably arranged Sectors are not linear but curved outwards uniformly.

Vorteilhafterweise ist der Krümmungsradius der Führung größer oder gleich dem Durchmesser des Steckertopfes. Statt dessen kann der Verlauf der als Führung für die beweglich angeordneten Sektoren dienenden Gleitbahnen parabolisch nach außen gekrümmt sein mit zum Rand hin abnehmendem Krümmungsradius.The radius of curvature of the guide is advantageously greater than or equal to that Diameter of the plug pot. Instead, the course can be used as a guide for the slideways that serve to move the sectors parabolically be curved on the outside with a decreasing radius of curvature towards the edge.

Gemäß einer bevorzugten Ausgestaltung der Erfindung sind die Führungen derart vorgesehen, daß sie wahlweise verdeckt angeordnet sind oder steckerseitig mit den zugeordneten beweglich angeordneten Sektoren des Steckertopfes bündig abschließen.According to a preferred embodiment of the invention, the guides are of this type provided that they are either arranged concealed or on the connector side the assigned movably arranged sectors of the plug socket flush to lock.

Eine weitere Ausführungsform sieht vor, daß die Führungen an die Zentralscheibe angeformt sind und daß die Zentralscheibe steckerseitig mit den beweglich angeordneten Sektoren des Steckertopfes bündig miteinander abschließt.Another embodiment provides that the guides on the central disc are integrally formed and that the central disc on the plug side with the movably arranged Sectors of the connector pot are flush with each other.

Eine zweckmäßige Weiterbildung sieht vor, daß jeder bewegliche Sektor von einer Rückstellfeder in Richtung seiner Ruhelage beaufschlagt ist, so daß nach Entnahme des Steckers die steckseitig vorbewegten Sektoren anschließend selbsttätig ihre Ruhestellung einnehmen. Mit Hilfe dieser Rückstellfeder kann das Ansprechverhalten der beweglich angeordneten Sektoren so eingestellt werden, daß erst ab einer bestimmten Querbeanspruchung der Steckdose infolge unsachgemäßer Betätigung des Steckers beziehungsweise des damit verbundenen Anschlußkabels, der der Beanspruchung ausgesetzte Sektor seine Stellung verläßt.A useful training provides that each moving sector of one Return spring is applied in the direction of its rest position, so that after removal the sectors moved forward on the plug side then automatically take their rest position. With the help of this return spring, the response behavior of the movably arranged sectors can be set so that only from a certain transverse stress on the socket as a result of improper operation the plug or the connecting cable connected to it, the stressed sector leaves its position.

Ein weiterer Vorteil der vorliegenden Erfindung ist auch dadurch gegeben, daß die erfindungsgemäße Ausgestaltung der Steckdose unabhängig ist von der Bauart des jeweiligen Steckers, das heißt Stirnstecker oder Winkelstecker. Auch bei Winkelsteckern, bei welchen der Kabelabgang zur Seite vorgesehen ist, ist die Funktion der erfindungsgemäßen Steckdose gewährleistet.Another advantage of the present invention is also given in that the Design of the socket according to the invention is independent of the type of the respective connector, that is, forehead connector or angled connector. Even with angled plugs, where the cable outlet is provided to the side is the function guaranteed the socket of the invention.

Diese und weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung sind in den Unteransprüchen gekennzeichnet.These and other advantageous refinements and improvements of the invention are marked in the subclaims.

Anhand eines in der schematischen Zeichnung dargestellten Ausführungsbeispiels sollen die Erfindung, vorteilhafte Ausgestaltungen und Verbesserungen sowie besondere Vorteile der Erfindung näher erläutert und beschrieben werden.Using an exemplary embodiment shown in the schematic drawing the invention, advantageous refinements and improvements and special Advantages of the invention are explained and described in more detail.

Es zeigen:

Fig. 1
einen Längsschnitt durch eine in einer Montagefläche eingesetzte Steckdose gemäß der Erfindung;
Fig. 2
die Steckdose gemäß Fig. 1 mit eingestecktem Stecker und
Fig. 3
die Steckdose gemäß Fig. 1 mit herausgezogenem Stecker.
Show it:
Fig. 1
a longitudinal section through a socket used in a mounting surface according to the invention;
Fig. 2
1 with plug inserted and
Fig. 3
1 with the plug pulled out.

In Fig. 1 ist eine Steckdose 10 gemäß der Erfindung mit einem Rahmen 12 und einem Gerätesockel 14 im Längsschnitt gezeigt. Die Steckdose 10, die als Schutzkontaktsteckdose für den Unterputzeinabau ausgebildet ist, besitzt einen Steckertopf 16 mit einem Topfboden 17. Die Steckdose 12 ist in eine Wandeinbaudose 18 in einer Montagefläche 11 eingesetzt und für die Aufnahme eines entsprechend geformten Schutzkontakt-Steckers 20, wie aus Fig. 2 oder 3 ersichtlich, mit Nuten 22 und mit Schutzleiter-Kontaktfedern 24 sowie mit Steckerstift-Einführöffnungen 25 versehen, durch welche die Steckerstifte 23 des Steckers in Kontakt mit den hier nicht näher gezeigten Steckkontakten gelangen. In Fig. 1 is a socket 10 according to the invention with a frame 12 and one Device base 14 shown in longitudinal section. The socket 10, which is used as an earthed socket is designed for flush mounting, has a plug pot 16 with a pot bottom 17. The socket 12 is in a wall socket 18 used in a mounting surface 11 and for receiving a corresponding shaped protective contact plug 20, as shown in Fig. 2 or 3, with grooves 22 and with protective conductor contact springs 24 and with pin insertion openings 25 provided, through which the plug pins 23 of the plug in contact with the here Plug contacts not shown come.

Der Rahmen 12, der den Steckertopf 16 umfaßt, besitzt einen gewölbten Rand, der an der Montagefläche 11 anliegt. An seiner Innenseite weist der Rahmen 12 wenigstens zwei jeweils diametral gegenüberliegend angeordnete, zur Einsteckseite hin gleitbewegliche Sektoren 26, 28 auf, an welchen die Nuten 22 und Schutzleiter-Kontaktfedern 24 angeformt sind. Diese Sektoren 26, 28 sind jeweils an Führungen 30 gehalten, die am Rahmen 12 angeformt sind. Die Führungen 30 dienen für die daran geführten Sektoren 26, 28 als Gleitbahnen 32, welche mit zunehmendem Abstand vom Topfboden 17 radial nach außen geneigt sind, so daß die auf diesen Gleitbahnen 32 gleitbeweglich geführten Sektoren 26, 28 beim Herausgleiten den hierdurch gleichzeitig begrenzten Steckertopf 16 im Durchmesser erweitern. Sowohl am Rahmen 12 als auch an den gleitbeweglichen Sektoren 26, 28 sind Haltenocken 34, 36 angeformt, zwischen welchen jeweils eine Rückstellfeder 38 angeordnet ist, die den zugeordneten Sektor 26, 28 in seine Ruhestellung beaufschlagt.The frame 12, which comprises the plug pot 16, has a curved edge which bears against the mounting surface 11. At least on the inside of the frame 12 two diametrically opposite, to the insertion side slidable sectors 26, 28 on which the grooves 22 and protective conductor contact springs 24 are molded. These sectors 26, 28 are each on guides 30 held, which are integrally formed on the frame 12. The guides 30 serve for the sectors 26, 28 guided thereon as slideways 32, which with increasing Distance from the bottom of the pot 17 are inclined radially outward, so that on this Slideways 32 slidably guided sectors 26, 28 when sliding out thereby simultaneously expanding the limited plug socket 16 in diameter. Either on the frame 12 and on the slidable sectors 26, 28 there are retaining cams 34, 36 integrally formed, between each of which a return spring 38 is arranged is, which applies the assigned sector 26, 28 to its rest position.

In Fig. 2 ist die Steckdose gemäß Fig. 1 mit einem eingesteckten Stecker 20 mit einer Anschlußleitung 21 im Längsschnitt gezeigt, wobei die Schnittdarstellung, ebenso wie bei Fig. 1 und bei Fig. 3 nur die erfindungswesentlichen Einzelheiten wiedergibt, das heißt die übrigen im Stand der Technik bereits bekannten Einzelheiten sind nicht näher gezeigt. Ansonsten sind jeweils gleiche Merkmale mit den gleichen Bezugsziffern wie in Fig. 1 bezeichnet, das heißt, es gelten, soweit nicht anders angegeben, die entsprechenden zu Fig. 1 gegebenen Erläuterungen.In Fig. 2, the socket of FIG. 1 with an inserted plug 20 is a connecting line 21 shown in longitudinal section, the sectional view, just as in Fig. 1 and in Fig. 3 only the details essential to the invention reproduces, that is, the other details already known in the prior art are not shown in detail. Otherwise, the same characteristics with the the same reference numerals as in Fig. 1, that is, they apply unless they are otherwise stated, the corresponding explanations given for FIG. 1.

Die Darstellung in Fig. 3 zeigt die Anordnung gemäß Fig. 2 jedoch mit an seiner Anschlußleitung 21 herausgezogenem Stecker 20. Hierbei ist zu erkennen, daß der Stecker entsprechend der Zugrichtung ein kleines Stück bereits die Steckdose 10 verlassen hat und daß hierbei die Steckerstifte 23 bereits aus den Steckerstift-Einführöffnungen 25 herausgezogen sind und der Stecker 20 eine zum Topfboden 17 geneigte Stellung einnimmt. Dabei ist die Längsachse des Steckers 20 entsprechend der Zugrichtung der Anschlußleitung 21 ausgerichtet, so daß der dieser Zug richtung nächstliegende gleitbewegliche Sektor 28 dieser Ausziehrichtung entsprechend sich ebenfalls vom Topfboden 17 entfernt hat. Hierdurch ist die zugeordnete Rückstellfeder 38 zusammengedrückt.The illustration in FIG. 3 shows the arrangement according to FIG. 2, however, on it Connection line 21 pulled connector 20. It can be seen that the According to the direction of pull, a small piece of socket 10 is already in place has left and that the connector pins 23 are already out of the connector insertion openings 25 are pulled out and the plug 20 one to the bottom of the pot 17 takes an inclined position. The longitudinal axis of the plug 20 is corresponding the direction of pull of the connecting line 21 aligned, so that this train direction closest slidable sector 28 corresponding to this pull-out direction has also moved away from the bottom 17 of the pot. This is the assigned Return spring 38 compressed.

Das Herausziehen eines eingesteckten Steckers 20 hat zur Folge, daß dieser mitsamt dem der Zugrichtung nächstgelegenen Sektor 26, 28 sich vom Topfboden 17 entfernt, hierbei den Formschluß mit den übrigen Sektoren verliert und auf diese Weise keinerlei Zugkräfte auf die Steckdose 10 übertragen kann, so daß diese keinerlei Schaden nimmt.Pulling out an inserted plug 20 has the result that it is included the sector 26, 28 closest to the direction of pulling away from the pot bottom 17 removed, thereby losing the form fit with the other sectors and on these Way no tensile forces can be transferred to the socket 10, so that this none Takes damage.

Mit Hilfe der Erfindung ist also sichergestellt, daß im Falle, daß ein in eine Steckdose 10 eingesteckter Stecker 20 unsachgemäß durch Ziehen an der mit dem Stecker 20 verbundenen Anschlußleitung 21 aus der Steckdose 10 entfernt werden soll, wobei die Zugkraft nicht normal zur Steckdose 10 beziehungsweise zu deren Topfboden 17 sondern schräg hierzu angreift, weder die Verbindung der Anschlußleitung 21 mit dem Stecker 20 noch der Stecker 20 beziehungsweise die Anschlußleitung 21 selbst oder die Steckdose 10 beschädigt werden, da bereits vor Erreichen einer eine solche Schädigung hervorrufenden Kraft, die Trennung von Steckdose 10 und des zuvor eingesteckten Steckers 20 infolge der gleitbeweglichen, nachgiebigen Sektoren 26, 28 erfolgt.With the help of the invention it is thus ensured that in the event that one into an outlet 10 plugged in 20 improperly by pulling the with the Plug 20 connected connecting line 21 are removed from the socket 10 Should, the traction is not normal to the socket 10 or their Pot bottom 17 but obliquely attacks this, neither the connection of the connecting line 21 with the connector 20, the connector 20 or the connecting line 21 itself or the socket 10 may be damaged because it is already there of a force causing such damage, the disconnection from the socket 10 and the previously inserted plug 20 due to the slidable, compliant sectors 26, 28 takes place.

Wie aus der Schnittdarstellung in den Fig. 1 bis 3 zu erkennen ist, sind gemäß der Erfindung die Gleitbahnen 32 vorzugsweise kurvenförmig ausgebildet, wobei gemäß einer vorteilhaften Ausführungsform der Erfindung der Kurvenradius mit zunehmendem Abstand vom Topfboden 17 kleiner wird und zum Beispiel einer entsprechenden parabolischen Kurve folgt. Hierdurch ist die zuvor beschriebene Trennung von Stecker 20 und Steckdose 10 begünstigt, da hierdurch eine sehr rasche Aufweitung des Steckertopfes bei entsprechender Zugbeanspruchung des Steckers 20 stattfindet.As can be seen from the sectional view in FIGS. 1 to 3, according to the Invention, the slideways 32 are preferably curved, according to an advantageous embodiment of the invention, the radius of the curve with increasing Distance from the bottom of the pot 17 becomes smaller and, for example, a corresponding one parabolic curve follows. This is the previously described Separation of plug 20 and socket 10 favors, as this makes it very quick Widening of the plug pot with the corresponding tensile stress on the Connector 20 takes place.

Claims (10)

  1. An electric socket outlet, especially a socket outlet (10) with earthing contact, for embedded installation with a socket pot (16) integrated in a frame with a side wall for receiving of a plug connector (20) in a form-fitting manner, characterized in that the side wall of the socket pot (16) is subdivided into at least four sectors (26, 28), that at least two of said sectors (26, 28) are disposed in a slidingly movable fashion in the plug-in direction, and that their slideways (32) are inclined radially outwardly with increasing distance from the pot floor (17).
  2. A socket outlet as claimed in claim 1, characterized in that each of the movably arranged sectors (26, 28) can be moved from an idle position in which all sectors (26, 28) rest on the pot floor (17) to an end position which is remote from the pot floor (17).
  3. A socket outlet as claimed in claim 1 or 2, characterized in that in the idle position all sectors (26, 28) delimit the socket pot (16) in a flush manner.
  4. A socket outlet as claimed in one of the preceding claims, characterized in that every movably arranged sector (26, 28) is held on a slideway (32) by a guide means (30) disposed on the frame (12).
  5. A socket outlet as claimed in claim 4, characterized in that the guide means (30) for the movably arranged sectors (26, 28) is bent evenly outwardly.
  6. A socket outlet as claimed in claim 5, characterized in that the radius of curvature of the guide means (30) is higher than or equal to the diameter of the socket pot (16).
  7. A socket outlet as claimed in one of the claims 4 to 6, characterized in that the guide means (30) is bent outwardly in a parabolic manner for the movably arranged sectors (26, 28) with a radius of curvature which decreases towards the edge.
  8. A socket outlet as claimed in one of the claims 4 to 7, characterized in that the guide means (30) are flush on the plug side with the associated movably arranged sectors (26, 28) of the socket pot (16).
  9. A socket outlet as claimed in one of the claims 4 to 8, characterized in that the guide means are shaped on the frame and that the frame (12) is mutually flush on the socket side with the movably arranged sectors (26, 28) of the socket pot (16).
  10. A socket outlet as claimed in one of the preceding claims, characterized in that every movable sector (26, 28) can be pressed by a pull-back spring (38) in the direction of its idle position.
EP97109816A 1996-06-21 1997-06-17 Electrical socket Expired - Lifetime EP0814542B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19624784A DE19624784A1 (en) 1996-06-21 1996-06-21 Electrical outlet
DE19624784 1996-06-21

Publications (2)

Publication Number Publication Date
EP0814542A1 EP0814542A1 (en) 1997-12-29
EP0814542B1 true EP0814542B1 (en) 2002-07-31

Family

ID=7797575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97109816A Expired - Lifetime EP0814542B1 (en) 1996-06-21 1997-06-17 Electrical socket

Country Status (4)

Country Link
EP (1) EP0814542B1 (en)
AT (1) ATE221702T1 (en)
DE (2) DE19624784A1 (en)
ES (1) ES2178729T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340525B3 (en) * 2003-09-03 2004-10-14 Randolf Bonk Electrical mains network plug incorporates tension restraint and alarm operated when tension is exerted on lead cable
DE102010054462A1 (en) 2010-12-14 2012-06-28 Volkswagen Ag Electrical contact unit of electrical connector for charging cable of electric vehicle, has friction elements movable between blocking and release positions such that frictional connection with counter contact unit is blockable
EP3246757B1 (en) * 2015-01-13 2019-04-17 Kyocera Document Solutions Inc. Electric apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE821056C (en) * 1949-03-17 1951-11-15 Fritz Geiling Electrical outlet
DE1169541B (en) * 1955-08-27 1964-05-06 Licentia Gmbh Safety plug
DE2623145A1 (en) * 1976-05-22 1977-12-01 Bosch Gmbh Robert Connector with plug and socket - with plug inserted into socket body with spherical outer surface rotatable like ball and socket joint

Also Published As

Publication number Publication date
ATE221702T1 (en) 2002-08-15
EP0814542A1 (en) 1997-12-29
DE19624784A1 (en) 1998-01-02
DE59707837D1 (en) 2002-09-05
ES2178729T3 (en) 2003-01-01

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