EP1344286B1 - Electrical socket - Google Patents

Electrical socket Download PDF

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Publication number
EP1344286B1
EP1344286B1 EP01984862A EP01984862A EP1344286B1 EP 1344286 B1 EP1344286 B1 EP 1344286B1 EP 01984862 A EP01984862 A EP 01984862A EP 01984862 A EP01984862 A EP 01984862A EP 1344286 B1 EP1344286 B1 EP 1344286B1
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EP
European Patent Office
Prior art keywords
locking
socket
component
socket insert
electrical
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
EP01984862A
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German (de)
French (fr)
Other versions
EP1344286A2 (en
Inventor
Gerhard Schwarz
Rainer Naumann
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.)
Cooper Crouse Hinds GmbH
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Cooper Crouse Hinds GmbH
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Publication of EP1344286A2 publication Critical patent/EP1344286A2/en
Application granted granted Critical
Publication of EP1344286B1 publication Critical patent/EP1344286B1/en
Anticipated expiration legal-status Critical
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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
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • 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
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

Definitions

  • the invention relates to an electrical socket, in particular for explosion-proof areas, with a rotatably mounted in a socket housing between off and on position socket insert, in which a substantially pin-shaped locking device between a depressed blocking and a socket insert above the release position is adjustably mounted, said in the release position of the locking device of the socket insert between off and on position is rotated.
  • the prior art socket forms part of an electrical plug-in device, wherein a socket insert of the socket by means of plugged into the socket plug between off and on position is rotated.
  • the substantially pin-shaped locking device has at least one coding projection, which is arranged in plugged into the socket insert plug in a corresponding Kodierausinstituung in the plug with the arrangement of the locking device in its release position. In the release position of the locking device of the socket insert between off and closed position is rotatable.
  • the prior art electrical outlet is accordingly connectable only with the associated plug and not usable with other plugs.
  • the present invention has for its object to improve an electrical socket of the type mentioned in that the electrical outlet is also connectable to other plugs on certain occasions.
  • the substantially pin-shaped locking device is formed from at least one removable locking part and a blocking part, which are arranged one above the other in the socket insert and of which the locking part protrudes from the socket insert in the release position.
  • the electrical socket according to the invention in the usual way can only be connected to the corresponding coded plug.
  • the locking part is removed, only the block part of the locking device is arranged in the socket insert. This is not available on the socket insert, so that a suitable coding in a connectable to the socket plug in this case is not required.
  • a commercially available industrial plug can then be completely inserted into the electrical socket so that it can be rotated from its off to its closed position.
  • a removal of the locking part can be done in particular when the corresponding device to which the electrical socket is connected, for repair purposes or the like and in particular not in a potentially explosive area is electrically powered.
  • each electrical outlet can be used regardless of the coding of their locking device with a commercial industrial plug to repair particular purposes.
  • locking part and blocking part have different cross sections. Only the locking part is arranged with its corresponding coding projection in an associated Kodierausinstituung in the plug.
  • the blocking part has a circular cross section
  • the locking part has a cross section which serves for coding.
  • Such a cross section is, for example, a certain angular cross section, an irregularly shaped cross section, a cross section having two arms pointing away from a center, a star-shaped cross section or the like. It is of course also possible that the arms are arranged in the aforementioned cross section at an angle of not equal to 180 ° or that more than two arms project from the corresponding center.
  • the locking member may be releasably secured in the socket insert. In this way, the locking member can not fall out after removal of the plug and get lost.
  • the locking part in this case does not have to be re-inserted every time before inserting a plug, but remains even after removing the plug in the socket insert.
  • the locking part may have a lateral longitudinal slot with which a locking pin mounted displaceably in the socket insert can be brought into engagement.
  • Other possibilities for releasably securing the locking part are a corresponding latching engagement of locking part and socket insert and / or blocking part or the like.
  • the locking pin may be spring loaded in the direction of engagement, so that it automatically engages in the corresponding longitudinal slot with inserted locking part. A release of the locking pin can be done for example by a tool or a separate device provided at the socket.
  • the locking pin can be closed by a lock cylinder arranged in the socket insert.
  • a lock cylinder arranged in the socket insert.
  • a corresponding key is necessary. By this can be rotated between an open and a closed position as in a known lock the lock cylinder. In the closed position, the locking pin is in engagement with the longitudinal slot in the locking part, so that it can not be removed from the socket insert. In the open position of the lock cylinder, the locking pin does not engage in the longitudinal slot and the locking member can be easily removed.
  • a warning may be visible when the locking part is removed.
  • a simple embodiment of such a warning message is a specific identification of the locking part assigning the end of the blocking part, which is visible when the locking part is removed. This end may for example be characterized by a corresponding warning or signal color.
  • Such a display device is in the simplest case a warning lamp which lights up when the locking part is removed.
  • a warning lamp can light up red when the locking part is removed. It is also possible that, when the locking part is inserted, a further lamp lights up green in order to allow the use of the electrical socket according to the invention, in particular in potentially explosive areas.
  • the display device may also be configured to present a readable warning message, such as "Not Use in Hazardous Areas.”
  • the presence or absence of the locking part can be determined correspondingly electrically, wherein in a simple embodiment when the locking part and the blocking part make contact, an electrical contact can be closed and the electrical indicating device can be deactivated. In this way, no separate electrical equipment in the socket insert required and Switching on or off the electrical display device takes place directly via locking part and blocking part.
  • the locking part can have at its end facing the blocking part a contact element which connects electrical lines provided in or on the blocking part. If the electrical lines are connected to one another when the locking part is inserted, the electrical indicator is ineffective and does not indicate a warning message. If the locking member is removed, the electrical indicator is effectively switched.
  • the contact element may be formed as a short-circuit contact, which short-circuits two electrical lines, which are guided by the blocking part to the display device. In this way, the electrical lines are short-circuited when inserted locking part and there is no electrical power to the display device.
  • FIG. 1 is a front view of an electrical socket 1 according to the invention shown.
  • This has a socket housing 2 with an approximately rectangular cross-section.
  • a socket insert 3 is rotatably mounted rotatably between an on and an off position of the socket.
  • five contact sockets 15 are visible in the illustrated embodiment, in the corresponding pins of a connector, not shown, are inserted.
  • a locking device 4 is arranged in the middle between the contact sockets. This is substantially pin-shaped and mounted in a corresponding hole in the socket insert adjustable between a blocking and a release position.
  • the locking device 4 projects beyond the socket insert 3 and is at most partially pressed into the socket insert and in blocking position the locking device 4 is pressed into the socket insert 3 so far that a rotation of the socket insert is not possible. Only in the release position of the locking device 4 of the socket insert 3 is rotated by a corresponding connector in its closed position.
  • FIG. 2 is a detail "X" off FIG. 1 shown enlarged.
  • the locking device 4 see also FIG. 4 , At least two parts of locking part 5 and blocking part 6 is constructed. If the electrical socket is intended for use in potentially explosive areas, then the locking part 5 is inserted and releasably secured in the socket insert 3. The releasable attachment via an engagement of a locking pin 8 in a lateral longitudinal slot 7 in the locking part 5. The locking pin 8 is displaceable by a lock cylinder 9 in the socket insert 3. In the in FIG. 2 shown engagement position, the locking member 5 is fixed in the socket insert 3 and slidably mounted in this.
  • the locking member 5 has a three-armed cross-section, wherein the three arms are each arranged at equal angles to each other. Other cross sections are possible.
  • FIG. 3 is a view analogous to FIG. 2 shown.
  • the lock cylinder 9 is rotated over a key inserted in key 16 key (not shown) so that the locking pin 8 is withdrawn from the longitudinal slot 7.
  • the locking member 5 is released and can be removed from the socket insert 3.
  • a blocking part 6 is arranged below the locking part 5, see also FIG. 4 , For receiving locking part 5 and blocking part 6, a correspondingly shaped bore is formed in the socket insert 3, in which the two parts forming the locking device 4 are guided in the longitudinal direction.
  • FIG. 4 is a perspective top view of locking part 5 and blocking part 6 is shown. To simplify socket insert 3 and other parts of the electrical socket 1 are not shown.
  • Locking part 5 and blocking part 6 are two individual parts of the pin-shaped locking device 4. Both have a same and substantially three-armed cross-section. The arms enclose equal angles with each other.
  • a contact element 13 is arranged at a the blocking part 6 facing end 12 of the locking member 5. This may be in the form of a substantially planar contact plate.
  • the contact element 3 serves as a short-circuit element, the free ends 18 of electrical lines 14 connects to each other.
  • the free ends 18 of the electric line 14 are arranged in a locking part 5 facing the front end 17 of the blocking part 6.
  • the electrical leads 14 extend except for the free ends 18 to an electrical display device 10. This is a Wam render representable, such as "Not use in hazardous areas".
  • the contact element 13 is not in contact with the free ends 18 when the locking part 5 is removed, the free ends 18 are correspondingly not short-circuited and an electrical supply of the display device 10 for displaying the warning indication ensues. Only with short-circuited free ends 18 of the electrical lines 14, the electrical display device 10 is ineffective.

Abstract

An electrical socket, in particular for explosion-proof areas, comprising a socket insert, which is supported in a socket housing such that it is adapted to be rotated between off- and on-positions and in which a substantially pin-shaped locking means is supported such that it is displaceable between a pressed-down blocking position and a release position in which it projects beyond the socket insert. In the release position of the locking means, said socket insert is rotatable between said off- and on-positions. In order to improve an electrical socket of this type in such a way that it can also be connected to other plugs on certain occasions, the substantially pin-shaped locking means is defined by at least one removable locking component and a blocking component, which are arranged on top of one another in the socket insert, the locking component projecting beyond the socket insert in the release position.

Description

Die Erfindung betrifft eine elektrische Steckdose, insbesondere für explosionsgeschützte Bereiche, mit einem in einem Steckdosengehäuse zwischen einer Aus- und Einschaltstellung verdrehbar gelagerten Steckdoseneinsatz, in dem eine im wesentlichen stiftförmige Verriegelungseinrichtung zwischen einer eingedrückten Blockier- und einer vom Steckdoseneinsatz vorstehenden Freigabestellung verstellbar gelagert ist, wobei in Freigabestellung der Verriegelungseinrichtung der Steckdoseneinsatz zwischen Aus- und Einschaltstellung verdrehbar ist.The invention relates to an electrical socket, in particular for explosion-proof areas, with a rotatably mounted in a socket housing between off and on position socket insert, in which a substantially pin-shaped locking device between a depressed blocking and a socket insert above the release position is adjustably mounted, said in the release position of the locking device of the socket insert between off and on position is rotated.

Eine solche elektrische Steckdose ist aus der DE 299 15 263 bekannt. Die vorbekannte Steckdose bildet einen Teil einer elektrischen Steckvorrichtung, wobei ein Steckdoseneinsatz der Steckdose mittels des in der Steckdose eingesteckten Steckers zwischen Aus- und Einschaltstellung verdrehbar ist. Die im wesentlichen stiftförmige Verriegelungseinrichtung weist wenigstens einen Kodiervorsprung auf, der bei in den Steckdoseneinsatz eingestecktem Stecker in einer entsprechenden Kodierausnehmung im Stecker unter Anordnung der Verriegelungseinrichtung in ihrer Freigabestellung angeordnet ist. In Freigabestellung der Verriegelungseinrichtung ist der Steckdoseneinsatz zwischen Aus- und Einschaltstellung verdrehbar.Such an electrical outlet is out of the DE 299 15 263 known. The prior art socket forms part of an electrical plug-in device, wherein a socket insert of the socket by means of plugged into the socket plug between off and on position is rotated. The substantially pin-shaped locking device has at least one coding projection, which is arranged in plugged into the socket insert plug in a corresponding Kodierausnehmung in the plug with the arrangement of the locking device in its release position. In the release position of the locking device of the socket insert between off and closed position is rotatable.

Durch solche elektrischen Steckvorrichtungen ist ein spannungsloses Stecken und Zuschalten, insbesondere für explosionsgeschützte Bereiche möglich. Durch die entsprechende Kodierung von stiftförmiger Verriegelungseinrichtung und Stecker mit entsprechender Kodierausnehmung ist nur bei bestimmtem Stecker ein Einschalten der elektrischen Steckvorrichtung möglich. Verfügt ein Stecker über eine andere oder keine entsprechende Kodierausnehmung, wird die Verriegelungseinrichtung in ihre Blockierstellung eingedrückt und der Steckdoseneinsatz ist nicht aus der Ausschaltstellung in die Einschaltstellung verdrehbar. Ohne Verwendung eines entsprechenden Steckers ist die Verriegelungseinrichtung durch Beaufschlagung einer Feder oder dergleichen in ihrer Freigabestellung angeordnet.By such electrical plug devices, a voltage-free plugging and connecting, especially for explosion-proof areas is possible. By the corresponding coding of pin-shaped locking device and plug with a corresponding Kodierausnehmung turning on the electrical plug-in device is only possible with a certain plug. If a plug has a different or no corresponding coding recess, the locking device is pressed into its blocking position and the socket insert is not rotated from the open position to the closed position. Without using a corresponding connector is the Locking device arranged by applying a spring or the like in its release position.

Die vorbekannte elektrische Steckdose ist entsprechend nur mit dem zugehörigen Stecker verbindbar und nicht mit anderen Steckern verwendbar.The prior art electrical outlet is accordingly connectable only with the associated plug and not usable with other plugs.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine elektrische Steckdose der eingangs genannten Art dahingehend zu verbessern, dass die elektrische Steckdose bei bestimmten Gelegenheiten auch mit anderen Steckern verbindbar ist.The present invention has for its object to improve an electrical socket of the type mentioned in that the electrical outlet is also connectable to other plugs on certain occasions.

Diese Aufgabe wird im Zusammenhang mit den Merkmalen des Oberbegriffs des Anspruchs 1 dadurch gelöst, dass die im wesentlichen stiftförmige Verriegelungseinrichtung aus wenigstens einem entfernbaren Verriegelungsteil und einem Blockierteil gebildet ist, welche im Steckdoseneinsatz übereinander angeordnet sind und von welchen das Verriegelungsteil vom Steckdoseneinsatz in Freigabestellung vorsteht.This object is achieved in connection with the features of the preamble of claim 1, characterized in that the substantially pin-shaped locking device is formed from at least one removable locking part and a blocking part, which are arranged one above the other in the socket insert and of which the locking part protrudes from the socket insert in the release position.

Bei eingesetztem Verriegelungsteil ist die erfindungsgemäße elektrische Steckdose in üblicher Weise nur mit dem entsprechend kodierten Stecker verbindbar. Wird allerdings das Verriegelungsteil entfernt, ist nur noch das Blockerteil der Verriegelungseinrichtung im Steckdoseneinsatz angeordnet. Dieses steht über den Steckdoseneinsatz nicht vor, so dass eine passende Kodierung in einem mit der Steckdose verbindbaren Stecker in diesem Fall nicht erforderlich ist. Das heißt, auch ein handelsüblicher Industriestecker kann dann vollständig in die elektrische Steckdose eingeführt werden, so dass diese aus ihrer Aus- in ihre Einschaltstellung verdrehbar ist. Ein Entfernen des Verriegelungsteils kann insbesondere dann erfolgen, wenn die entsprechende Vorrichtung, mit der die elektrische Steckdose verbunden ist, zu Reparaturzwecken oder dergleichen und insbesondere nicht in einem explosionsgefährdeten Bereich elektrisch versorgt wird. Für solche Reparaturzwecke ist eine spezielle Steckerkodierung nicht erforderlich und insbesondere müssen für unterschiedliche Kodierungen nicht die entsprechend kodierten Stecker bevorratet und zur Verbindung mit der elektrischen Steckdose verwendet werden. Statt dessen kann jede elektrische Steckdose unabhängig von der Kodierung ihrer Verriegelungseinrichtung mit einem handelsüblichen Industriestecker zu insbesondere Reparaturzwecken verwendet werden.When inserted locking part, the electrical socket according to the invention in the usual way can only be connected to the corresponding coded plug. However, if the locking part is removed, only the block part of the locking device is arranged in the socket insert. This is not available on the socket insert, so that a suitable coding in a connectable to the socket plug in this case is not required. This means that even a commercially available industrial plug can then be completely inserted into the electrical socket so that it can be rotated from its off to its closed position. A removal of the locking part can be done in particular when the corresponding device to which the electrical socket is connected, for repair purposes or the like and in particular not in a potentially explosive area is electrically powered. For such repair purposes, a special plug coding is not required and in particular do not have to stockpiled for different codes the corresponding coded plug and used to connect to the electrical outlet. Instead, each electrical outlet can be used regardless of the coding of their locking device with a commercial industrial plug to repair particular purposes.

Da die Kodierung bei der erfindungsgemäßen elektrischen Steckdose im wesentlichen über das Verriegelungsteil erfolgt, ist es denkbar, dass Verriegelungsteil und Blockierteil unterschiedliche Querschnitte aufweisen. Nur das Verriegelungsteil wird mit seinem entsprechenden Kodiervorsprung in einer zugehörigen Kodierausnehmung im Stecker angeordnet. Beispielsweise ist es denkbar, dass das Blockierteil einen kreisförmigen Querschnitt aufweist, während das Verriegelungsteil einen Querschnitt aufweist, der zur Kodierung dient. Ein solcher Querschnitt ist beispielsweise ein bestimmter eckiger Querschnitt, ein unregelmäßig geformter Querschnitt, ein Querschnitt, der zwei von einer Mitte fortweisenden Arme aufweist, ein sternförmiger Querschnitt oder dergleichen. Es ist selbstverständlich auch möglich, dass die Arme bei dem vorangehend genannten Querschnitt unter einem Winkel von ungleich 180° angeordnet sind oder dass mehr als zwei Arme vom entsprechenden Mittelpunkt abstehen.Since the coding in the electrical socket according to the invention essentially takes place via the locking part, it is conceivable that locking part and blocking part have different cross sections. Only the locking part is arranged with its corresponding coding projection in an associated Kodierausnehmung in the plug. For example, it is conceivable that the blocking part has a circular cross section, while the locking part has a cross section which serves for coding. Such a cross section is, for example, a certain angular cross section, an irregularly shaped cross section, a cross section having two arms pointing away from a center, a star-shaped cross section or the like. It is of course also possible that the arms are arranged in the aforementioned cross section at an angle of not equal to 180 ° or that more than two arms project from the corresponding center.

Um zu verhindern, dass das Verriegelungsteil aus dem Steckdoseneinsatz herausfallen kann, kann das Verriegelungsteil im Steckdoseneinsatz lösbar befestigt sein. Auf diese Weise kann das Verriegelungsteil nicht nach Entfernen des Steckers herausfallen und verloren gehen. Außerdem muss das Verriegelungsteil in diesem Fall nicht jedes mal vor Einsetzen eines Steckers neu eingesetzt werden, sondern verbleibt auch nach Entfernen des Steckers im Steckdoseneinsatz.In order to prevent the locking member from falling out of the socket insert, the locking member may be releasably secured in the socket insert. In this way, the locking member can not fall out after removal of the plug and get lost. In addition, the locking part in this case does not have to be re-inserted every time before inserting a plug, but remains even after removing the plug in the socket insert.

Die lösbare Befestigung des Verriegelungsteils kann in unterschiedlicher Weise erfolgen. Bei einem einfachen Ausführungsbeispiel kann das Verriegelungsteil einen seitlichen Längsschlitz aufweisen, mit dem ein verschiebbar im Steckdoseneinsatz gelagerter Verriegelungsstift in Eingriff bringbar ist. Weitere Möglichkeiten zum lösbaren Befestigen des Verriegelungsteils sind ein entsprechender Rasteingriff von Verriegelungsteil und Steckdoseneinsatz und/oder Blockierteil oder dergleichen. Auch der Verriegelungsstift kann in Richtung Eingriffsstellung federbelastet sein, so dass er selbsttätig in den entsprechenden Längsschlitz bei eingesetztem Verriegelungsteil eingreift. Ein Lösen des Verriegelungsstiftes kann beispielsweise durch ein Werkzeug oder eine separat an der Steckdose vorgesehene Einrichtung erfolgen.The releasable attachment of the locking member can be done in different ways. In a simple embodiment, the locking part may have a lateral longitudinal slot with which a locking pin mounted displaceably in the socket insert can be brought into engagement. Other possibilities for releasably securing the locking part are a corresponding latching engagement of locking part and socket insert and / or blocking part or the like. Also, the locking pin may be spring loaded in the direction of engagement, so that it automatically engages in the corresponding longitudinal slot with inserted locking part. A release of the locking pin can be done for example by a tool or a separate device provided at the socket.

Um ein Entnehmen des Verriegelungsteils zu erschweren und nur mit entsprechender Autorisierung durchführen zu können, kann der Verriegelungsstift durch einen im Steckdoseneinsatz angeordneten Schließzylinder verschließbar sein. Zur Betätigung des Schließzylinders ist ein entsprechender Schlüssel notwendig. Durch diesen kann wie bei einem bekannten Schloss der Schließzylinder zwischen einer Öffnungs- und einer Schließstellung verdreht werden. In der Schließstellung ist der Verriegelungsstift in Eingriff mit dem Längsschlitz im Verriegelungsteil, so dass dieses nicht aus dem Steckdoseneinsatz entnehmbar ist. In der Öffnungsstellung des Schließzylinders greift der Verriegelungsstift nicht in den Längsschlitz ein und das Verriegelungsteil kann einfach entnommen werden.In order to make it difficult to remove the locking part and to perform only with appropriate authorization, the locking pin can be closed by a lock cylinder arranged in the socket insert. To operate the Locking cylinder a corresponding key is necessary. By this can be rotated between an open and a closed position as in a known lock the lock cylinder. In the closed position, the locking pin is in engagement with the longitudinal slot in the locking part, so that it can not be removed from the socket insert. In the open position of the lock cylinder, the locking pin does not engage in the longitudinal slot and the locking member can be easily removed.

Um bei entferntem Verriegelungsteil jeden Benutzer der elektrischen Steckdose darauf hinzuweisen, dass diese insbesondere in explosionsgefährdeten Bereichen nicht mehr verwendet werden darf, kann bei entferntem Verriegelungsteil ein Warnhinweis sichtbar sein. Ein einfaches Ausführungsbeispiel für einen solchen Wamhinweis ist eine bestimmte Kennzeichnung des dem Verriegelungsteil zuweisenden Endes des Blockierteils, das bei entferntem Verriegelungsteil sichtbar ist. Dieses Ende kann beispielsweise durch eine entsprechende Warn- oder Signalfarbe gekennzeichnet sein.In order to warn each user of the electrical socket when the locking part is removed that it may no longer be used, in particular in potentially explosive areas, a warning may be visible when the locking part is removed. A simple embodiment of such a warning message is a specific identification of the locking part assigning the end of the blocking part, which is visible when the locking part is removed. This end may for example be characterized by a corresponding warning or signal color.

Um den Warnhinweis deutlicher zu gestalten, kann er auf einer elektrisch betriebenen Anzeigeeinrichtung sichtbar sein. Eine solche Anzeigeeinrichtung ist im einfachsten Fall eine Warnlampe, die bei entferntem Verriegelungsteil leuchtet. Beispielsweise kann eine solche Warnlampe bei entferntem Verriegelungsteil rot aufleuchten. Es ist ebenfalls möglich, dass bei eingesetztem Verriegelungsteil eine weitere Lampe grün aufleuchtet, um die Verwendung der erfindungsgemäßen elektrischen Steckdose insbesondere in explosionsgefährdeten Bereichen zu erlauben.To make the warning more clear, it may be visible on an electrically operated display device. Such a display device is in the simplest case a warning lamp which lights up when the locking part is removed. For example, such a warning lamp can light up red when the locking part is removed. It is also possible that, when the locking part is inserted, a further lamp lights up green in order to allow the use of the electrical socket according to the invention, in particular in potentially explosive areas.

Die Anzeigeeinrichtung kann außerdem so gestaltet sein, dass ein lesbarer Wamhinweis dargestellt wird, wie beispielsweise "Nicht in explosionsgefährdeten Bereichen benutzen".The display device may also be configured to present a readable warning message, such as "Not Use in Hazardous Areas."

Das Vorhandensein oder die Abwesenheit des Verriegelungsteils kann entsprechend elektrisch festgestellt werden, wobei bei einem einfachen Ausführungsbeispiel bei Anlage von Verriegelungsteil und Blockierteil ein elektrischer Kontakt geschlossen und die elektrische Anzeigeeinrichtung unwirksam geschaltet sein kann. Auf diese Weise sind keine separaten elektrischen Einrichtungen im Steckdoseneinsatz erforderlich und das Ein- oder Ausschalten der elektrischen Anzeigeeinrichtung erfolgt direkt über Verriegelungsteil und Blockierteil.The presence or absence of the locking part can be determined correspondingly electrically, wherein in a simple embodiment when the locking part and the blocking part make contact, an electrical contact can be closed and the electrical indicating device can be deactivated. In this way, no separate electrical equipment in the socket insert required and Switching on or off the electrical display device takes place directly via locking part and blocking part.

Um den elektrischen Kontakt zwischen Verriegelungsteil und Blockierteil in einfacher Weise herzustellen, kann das Verriegelungsteil an seinem dem Blockierteil zuweisenden Ende ein Kontaktelement aufweisen, welches im oder am Blockierteil vorgesehene elektrische Leitungen miteinander verbindet. Sind die elektrischen Leitungen bei eingesetztem Verriegelungsteil miteinander verbunden, ist die elektrische Anzeigeeinrichtung unwirksam geschaltet und zeigt keinen Wamhinweis an. Ist das Verriegelungsteil entfernt, ist die elektrische Anzeigeeinrichtung wirksam geschaltet.In order to produce the electrical contact between the locking part and the blocking part in a simple manner, the locking part can have at its end facing the blocking part a contact element which connects electrical lines provided in or on the blocking part. If the electrical lines are connected to one another when the locking part is inserted, the electrical indicator is ineffective and does not indicate a warning message. If the locking member is removed, the electrical indicator is effectively switched.

Bei einem einfachen Ausführungsbeispiel kann das Kontaktelement als Kurzschlusskontakt ausgebildet sein, der zwei elektrische Leitungen kurzschließt, die durch das Blockierteil zur Anzeigeeinrichtung geführt sind. Auf diese Weise sind die elektrischen Leitungen bei eingesetztem Verriegelungsteil kurzgeschlossen und es erfolgt keine elektrische Versorgung der Anzeigeeinrichtung.In a simple embodiment, the contact element may be formed as a short-circuit contact, which short-circuits two electrical lines, which are guided by the blocking part to the display device. In this way, the electrical lines are short-circuited when inserted locking part and there is no electrical power to the display device.

Im folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand der in der Zeichnung beigefügten Figuren näher erläutert.In the following an advantageous embodiment of the invention will be explained in more detail with reference to the accompanying figures in the drawing.

Es zeigen:

Figur 1
eine Vorderansicht einer erfindungsgemäßen elektrischen Steckdose;
Figur 2
eine vergrößerte Darstellung des Details "X" aus Figur 1 mit eingesetztem Verriegelungsteil;
Figur 3
eine Ansicht analog zu Figur 2 mit entferntem Verriegelungsteil, und
Figur 4
eine perspektivische Draufsicht auf Verriegelungsteil und Blockierteil in vereinfachter Darstellung.
Show it:
FIG. 1
a front view of an electrical socket according to the invention;
FIG. 2
an enlarged view of the detail "X" from FIG. 1 with inserted locking part;
FIG. 3
a view analogous to FIG. 2 with remote locking part, and
FIG. 4
a perspective top view of the locking part and blocking part in a simplified representation.

In Figur 1 ist eine Vorderansicht einer erfindungsgemäßen elektrischen Steckdose 1 dargestellt. Diese weist ein Steckdosengehäuse 2 mit in etwa rechteckförmigem Querschnitt auf. Im oberen Teil des Steckdosengehäuses ist ein Steckdoseneinsatz 3 verdrehbar zwischen einer Ein- und einer Ausschaltstellung der Steckdose verdrehbar gelagert. Im Steckdoseneinsatz 3 sind bei dem dargestellten Ausführungsbeispiel fünf Kontaktbuchsen 15 sichtbar, in die entsprechende Kontaktstifte eines nicht dargestellten Steckers einsteckbar sind. Mittig zwischen den Kontaktbuchsen 15 ist eine Verriegelungseinrichtung 4 angeordnet. Diese ist im wesentlichen stiftförmig und in einer entsprechenden Bohrung im Steckdoseneinsatz verstellbar zwischen einer Blockier- und einer Freigabestellung gelagert. In der Freigabestellung steht die Verriegelungseinrichtung 4 über den Steckdoseneinsatz 3 vor und ist höchstens teilweise in den Steckdoseneinsatz eingedrückt und in Blockierstellung ist die Verriegelungseinrichtung 4 in den Steckdoseneinsatz 3 soweit eingedrückt, dass ein Verdrehen des Steckdoseneinsatzes nicht möglich ist. Nur in Freigabestellung der Verriegelungseinrichtung 4 ist der Steckdoseneinsatz 3 durch einen entsprechenden Stecker in seine Einschaltstellung verdrehbar.In FIG. 1 is a front view of an electrical socket 1 according to the invention shown. This has a socket housing 2 with an approximately rectangular cross-section. In the upper part of the socket housing a socket insert 3 is rotatably mounted rotatably between an on and an off position of the socket. In the socket insert 3 five contact sockets 15 are visible in the illustrated embodiment, in the corresponding pins of a connector, not shown, are inserted. In the middle between the contact sockets 15, a locking device 4 is arranged. This is substantially pin-shaped and mounted in a corresponding hole in the socket insert adjustable between a blocking and a release position. In the release position, the locking device 4 projects beyond the socket insert 3 and is at most partially pressed into the socket insert and in blocking position the locking device 4 is pressed into the socket insert 3 so far that a rotation of the socket insert is not possible. Only in the release position of the locking device 4 of the socket insert 3 is rotated by a corresponding connector in its closed position.

In Figur 2 ist ein Detail "X" aus Figur 1 vergrößert dargestellt.In FIG. 2 is a detail "X" off FIG. 1 shown enlarged.

Die Verriegelungseinrichtung 4, siehe auch Figur 4, ist zumindest zweiteilig aus Verriegelungsteil 5 und Blockierteil 6 aufgebaut. Ist die elektrische Steckdose für einen Einsatz in explosionsgefährdeten Bereichen vorgesehen, so ist das Verriegelungsteil 5 eingesetzt und im Steckdoseneinsatz 3 lösbar befestigt. Die lösbare Befestigung erfolgt über einen Eingriff eines Verriegelungsstiftes 8 in einen seitlichen Längsschlitz 7 im Verriegelungsteil 5. Der Verriegelungsstift 8 ist durch einen Schließzylinder 9 im Steckdoseneinsatz 3 verschiebbar. In der in Figur 2 dargestellten Eingriffsstellung ist das Verriegelungsteil 5 im Steckdoseneinsatz 3 befestigt und in diesem verschiebbar gelagert.The locking device 4, see also FIG. 4 , At least two parts of locking part 5 and blocking part 6 is constructed. If the electrical socket is intended for use in potentially explosive areas, then the locking part 5 is inserted and releasably secured in the socket insert 3. The releasable attachment via an engagement of a locking pin 8 in a lateral longitudinal slot 7 in the locking part 5. The locking pin 8 is displaceable by a lock cylinder 9 in the socket insert 3. In the in FIG. 2 shown engagement position, the locking member 5 is fixed in the socket insert 3 and slidably mounted in this.

Das Verriegelungsteil 5 weist einen dreiarmigen Querschnitt auf, wobei die drei Arme jeweils unter gleichen Winkeln zueinander angeordnet sind. Andere Querschnitte sind möglich.The locking member 5 has a three-armed cross-section, wherein the three arms are each arranged at equal angles to each other. Other cross sections are possible.

In Figur 3 ist eine Ansicht analog zu Figur 2 dargestellt. In dieser Figur ist der Schließzylinder 9 über einen in Schlüsselloch 16 eingesetzten Schlüssel (nicht dargestellt) so verdreht, dass der Verriegelungsstift 8 aus dem Längsschlitz 7 zurückgezogen ist. Dadurch ist das Verriegelungsteil 5 gelöst und kann aus dem Steckdoseneinsatz 3 entnommen werden. Unterhalb des Verriegelungsteils 5 ist ein Blockierteil 6 angeordnet, siehe auch Figur 4. Zur Aufnahme von Verriegelungsteil 5 und Blockierteil 6 ist in dem Steckdoseneinsatz 3 eine entsprechend geformte Bohrung ausgebildet, in der die beiden die Verriegelungseinrichtung 4 bildenden Teile in Längsrichtung geführt sind.In FIG. 3 is a view analogous to FIG. 2 shown. In this figure, the lock cylinder 9 is rotated over a key inserted in key 16 key (not shown) so that the locking pin 8 is withdrawn from the longitudinal slot 7. As a result, the locking member 5 is released and can be removed from the socket insert 3. Below the locking part 5, a blocking part 6 is arranged, see also FIG. 4 , For receiving locking part 5 and blocking part 6, a correspondingly shaped bore is formed in the socket insert 3, in which the two parts forming the locking device 4 are guided in the longitudinal direction.

In Figur 4 ist eine perspektivische Draufsicht auf Verriegelungsteil 5 und Blockierteil 6 dargestellt. Zur Vereinfachung sind Steckdoseneinsatz 3 und sonstige Teile der elektrischen Steckdose 1 nicht dargestellt.In FIG. 4 is a perspective top view of locking part 5 and blocking part 6 is shown. To simplify socket insert 3 and other parts of the electrical socket 1 are not shown.

Verriegelungsteil 5 und Blockierteil 6 sind zwei Einzelteile der stiftförmigen Verriegelungseinrichtung 4. Beide weisen einen gleichen und im wesentlichen dreiarmigen Querschnitt auf. Die Arme schließen gleiche Winkel miteinander ein.Locking part 5 and blocking part 6 are two individual parts of the pin-shaped locking device 4. Both have a same and substantially three-armed cross-section. The arms enclose equal angles with each other.

An einem dem Blockierteil 6 zuweisenden Ende 12 des Verriegelungsteils 5 ist ein Kontaktelement 13 angeordnet. Dieses kann in Form einer im wesentlichen ebenen Kontaktplatte ausgebildet sein. Bei Anlage von Verriegelungsteil 5 und Blockierteil 6 dient das Kontaktelement 3 als Kurzschlusselement, das freie Enden 18 von elektrischen Leitungen 14 miteinander verbindet. Die freien Enden 18 der elektrischen Leitung 14 sind in einem dem Verriegelungsteil 5 zuweisenden Vorderende 17 des Blockierteils 6 angeordnet. Die elektrischen Leitungen 14 erstrecken sich außer zu den freien Enden 18 zu einer elektrischen Anzeigeeinrichtung 10. Auf dieser ist ein Wamhinweis darstellbar, wie "Nicht in explosionsgefährdeten Bereichen benutzen".At a the blocking part 6 facing end 12 of the locking member 5, a contact element 13 is arranged. This may be in the form of a substantially planar contact plate. When system of locking part 5 and blocking part 6, the contact element 3 serves as a short-circuit element, the free ends 18 of electrical lines 14 connects to each other. The free ends 18 of the electric line 14 are arranged in a locking part 5 facing the front end 17 of the blocking part 6. The electrical leads 14 extend except for the free ends 18 to an electrical display device 10. This is a Wamhinweis representable, such as "Not use in hazardous areas".

Ist das Kontaktelement 13 nicht in Kontakt mit den freien Enden 18 bei entferntem Verriegelungsteil 5, sind die freien Enden 18 entsprechend nicht kurzgeschlossen und es erfolgt eine elektrische Versorgung der Anzeigeeinrichtung 10 zur Darstellung des Wamhinweises. Nur bei kurzgeschlossenen freien Enden 18 der elektrischen Leitungen 14 ist die elektrische Anzeigeeinrichtung 10 unwirksam geschaltet.If the contact element 13 is not in contact with the free ends 18 when the locking part 5 is removed, the free ends 18 are correspondingly not short-circuited and an electrical supply of the display device 10 for displaying the warning indication ensues. Only with short-circuited free ends 18 of the electrical lines 14, the electrical display device 10 is ineffective.

Claims (9)

  1. An electrical socket (1) in particular for use in explosion-prone areas, comprising:
    a socket insert (3) that is supported in a socket housing (2) such that the socket insert is adapted to be rotated between off- and on-positions; and
    a substantially pin-shaped locking element (4) supported in the socket insert (3) such that the locking element is displaceable between a pressed-down blocking position and a release position in which the locking element (4) projects beyond the socket insert (3), wherein with locking element (4) in its release position, the socket insert (3) is rotatable between the off- and on-positions characterized in that
    the substantially pin-shaped locking element is defined by at least one removable locking component (5) and a blocking component (6) that are arranged on top of one another in the socket insert (3) and from which the locking component (5) projects beyond the socket insert in the release position.
  2. The electrical socket according to claim 1, characterized in that the locking component (5) and the blocking component (6) have identical cross-sections.
  3. The electrical socket according to claim 1 or 2, characterized in that the locking component is releasably secured in the socket insert (3).
  4. The electrical socket according to one of the previous claims, characterized in that the locking component (5) is provided with a lateral longitudinal slot (7) that is adapted to be engaged with a locking pin (8) that is displaceably supported in the socket insert (3).
  5. The electrical socket according to claim 4, characterized in that the locking pin (8) is adapted to be displaced by a closing cylinder (9) arranged in the socket insert (3).
  6. The electrical socket according to claim 5, characterized in that a warning is visible when the locking component (5) is removed.
  7. The electrical socket according to claim 6, characterized in that the warning is visible on an electrically operated display component (10).
  8. The electrical socket according to one of the previous claims, characterized in that when the locking component (5) and the blocking component (6) abut on one another, an electric contact (11) is closed and the electric display component is turned off.
  9. The electrical socket according to one of the previous claims, characterized in that the locking component (5) has a contact element (13) on its end (12) facing the blocking component (6), the contact element interconnecting electric lines (14) provided in or on the blocking component (6).
EP01984862A 2000-12-18 2001-12-18 Electrical socket Expired - Lifetime EP1344286B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20021374U DE20021374U1 (en) 2000-12-18 2000-12-18 Electrical outlet
DE20021374U 2000-12-18
PCT/EP2001/014923 WO2002050961A2 (en) 2000-12-18 2001-12-18 Electrical socket

Publications (2)

Publication Number Publication Date
EP1344286A2 EP1344286A2 (en) 2003-09-17
EP1344286B1 true EP1344286B1 (en) 2010-06-09

Family

ID=7950199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01984862A Expired - Lifetime EP1344286B1 (en) 2000-12-18 2001-12-18 Electrical socket

Country Status (6)

Country Link
US (1) US20040102102A1 (en)
EP (1) EP1344286B1 (en)
AT (1) ATE470971T1 (en)
DE (2) DE20021374U1 (en)
NO (1) NO324559B1 (en)
WO (1) WO2002050961A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2906202A1 (en) * 2013-03-15 2014-09-18 Aerovironment, Inc. Electrical plug adapter having socket key safety system
DE102013011935A1 (en) * 2013-07-17 2015-02-19 Cooper Crouse-Hinds Gmbh plug-in device
USD765599S1 (en) 2013-07-17 2016-09-06 Cooper Crouse-Hinds Gmbh Socket
TWI600228B (en) * 2017-01-10 2017-09-21 Pei-Lin Huang Socket structure
DE102018105486A1 (en) 2018-03-09 2019-09-12 Eaton Protection Systems Ip Gmbh & Co. Kg ELECTRICAL CONNECTION DEVICE
DE102018105510A1 (en) 2018-03-09 2019-09-12 Eaton Protection Systems Ip Gmbh & Co. Kg Electrical plug device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE558669C (en) * 1929-07-10 1932-09-09 Dietz & Ritter G M B H Plug device with rotary switch built into the socket
CH311948A (en) * 1952-12-23 1955-12-15 Ginggen Alfred Socket with plug.
CH323136A (en) * 1953-07-03 1957-07-15 Rizzieri Italo Plug-in electrical connection device
US3789346A (en) * 1972-09-05 1974-01-29 West Virginia Armature Co Electrical coupling with pressure contacts and multiple conductance paths
US3808579A (en) * 1972-11-06 1974-04-30 Akzona Inc Explosion proof connector
US4198110A (en) * 1978-06-08 1980-04-15 General Energy Development Corp. Connector
DE2832105A1 (en) * 1978-07-21 1980-01-31 Playsafe Electrics Switching plug and socket assembly - has rotatable pin receiver to complete connection after full insertion of plug
DE3411170A1 (en) * 1984-03-27 1985-10-03 R. Stahl Schaltgeräte GmbH, 7118 Künzelsau EXPLOSION-PROOF CONNECTOR WITH ROTATING SOCKET BRACKET
US6382990B1 (en) * 1999-11-19 2002-05-07 Societe D'exploitation Des Procedes Marechal (Sepm) Electric connection base plate in particular for explosible environment and method for making same

Also Published As

Publication number Publication date
DE50115513D1 (en) 2010-07-22
NO324559B1 (en) 2007-11-19
ATE470971T1 (en) 2010-06-15
NO20032750D0 (en) 2003-06-17
DE20021374U1 (en) 2002-04-25
US20040102102A1 (en) 2004-05-27
WO2002050961A3 (en) 2002-08-29
NO20032750L (en) 2003-08-15
WO2002050961A2 (en) 2002-06-27
EP1344286A2 (en) 2003-09-17

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