EP1310021B1 - Explosion-protected light fitting and plug-in connection - Google Patents

Explosion-protected light fitting and plug-in connection Download PDF

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Publication number
EP1310021B1
EP1310021B1 EP01971815A EP01971815A EP1310021B1 EP 1310021 B1 EP1310021 B1 EP 1310021B1 EP 01971815 A EP01971815 A EP 01971815A EP 01971815 A EP01971815 A EP 01971815A EP 1310021 B1 EP1310021 B1 EP 1310021B1
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EP
European Patent Office
Prior art keywords
plug
explosion
locking
cover
protected
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
EP01971815A
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German (de)
French (fr)
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EP1310021A1 (en
Inventor
Gerhard Schwarz
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Cooper Crouse Hinds GmbH
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Cooper Crouse Hinds GmbH
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Publication of EP1310021A1 publication Critical patent/EP1310021A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F21V25/04—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken breaking the electric circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • F21V27/02—Cable inlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to an explosion-proof lamp with a lamp housing and an attachable thereto by means of at least one socket and electrically powered bulb, which socket is connectable via at least one terminal to a supply line and which lamp housing can be closed by a translucent cover and only in the tension-free state ,
  • a switching device is usually located within the lamp, which ensures that the lamp is disconnected from the voltage when the cover is released.
  • a switching device is designed for example as a so-called forced disconnector.
  • To supply the lamp in the luminaire housing usually Kaussein- or - prepareren are formed, through which a corresponding supply line can be laid to the inside of the lamp housing. There, the supply line is connected to corresponding terminals. This is connected to a socket of a light bulb.
  • the invention is therefore an object of the invention to improve a luminaire of the type mentioned in that simple and inexpensive voltage isolation of the lamp or the lamp can be done altogether while protecting against contact with live parts of the lamp and taking into account the requirements for explosion-proof Lights are secured.
  • Plug and socket are designed in particular explosion-proof to comply with the appropriate safety regulations when plugging or loosening the plug. Further restrictions on the plug and socket are not available, so that in principle all usable for explosion-proof areas plug and sockets are essentially used.
  • the locking of the cover in its closed position can be done in many ways.
  • the lock is designed so that it is released only after loosening the connection between the plug and socket and the cover to open or remove is.
  • An example of such a lock is an electrical or electromagnetic lock that is only turned on when the light is applied to the light via the plug. As soon as the luminaire is de-energized, the lock is released.
  • the socket can be designed so that it has an insertion opening for the plug. Furthermore, there is the possibility that the plug has a sleeve surrounding the corresponding plug contacts, which can be pushed onto the socket from the outside.
  • Plug and socket can be designed with different cross sections. In this case, the cross-section can be used for coding of plugs and sockets, so that, for example, only supply lines with appropriate voltage or corresponding circuits with the corresponding lamp can be connected.
  • the socket may have a locking device for the plugged plug.
  • a locking device may be formed, for example, as a bayonet lock or the like.
  • the lamp housing can be formed without receiving means for terminals or the like, for example in the cover.
  • Fastening means can be integrally formed directly on the lamp housing and, for example, locking recesses, locking projections, Einraststege, insertion projections or the like.
  • the lamp can be releasably secured there by corresponding latching of the fastening means arranged on ceiling, wall or mast counter-locking elements. Subsequently, the attachment of the plug to the socket and at the same time the locking of the cover takes place.
  • the cover may have a locking device which engages with the inserted part of the plug connection, for example the plug. That is, by mating the connector, the lock is made, for example, the connector when approaching or starting plugging into the socket actuates a corresponding locking element which locks the cover in its closed position.
  • this can have at least one insertion opening into which a corresponding locking element of the plug can be inserted.
  • the plugged into the insertion of the cover locking element of the plug then prevents the cover is movable relative to the plug and correspondingly detachable from the lamp housing.
  • an insertion depth of the insertion can be greater than a corresponding insertion depth of the connector.
  • the invention also relates to the part of the plug connection (plug element, plug) which is arranged at the end of the supply line for connection to an explosion-proof lamp of the type described above.
  • This part can be plugged into the counter element (socket) of the lamp, wherein at the same time or in anticipation the locking element is inserted into the corresponding insertion opening in the cover.
  • a reverse arrangement of locking and insertion is possible.
  • the locking element is designed to be complementary to the insertion opening.
  • the locking element may be a locking pin.
  • the locking element can be spaced and arranged parallel to the plug at this.
  • the locking element may be fastened by a connecting web on the plug-in element. This extends, for example, radially outward relative to the plug element and at its outer end of the locking pin is arranged.
  • the locking element may protrude over a free end of the arranged on the supply line connector part. As a result, even when approaching the arranged on the lamp counter element or at the beginning of insertion the locking element is already inserted into the insertion and thus ensures the locking of the cover in its closed position.
  • Fig. 1 is a partially sectioned side view of a lamp 1 according to the invention.
  • This has a generally trough-shaped light housing 2, which is fastened, for example, to a ceiling, a wall, a mast or the like.
  • a ballast 23 (if necessary), terminals 5 and electrical connection lines 12 are arranged.
  • a luminous means may be, for example, a fluorescent lamp, an incandescent lamp, a metal vapor high pressure lamp, a high pressure mercury vapor lamp, a high pressure sodium vapor lamp or the like.
  • the sockets are formed corresponding to the used light source 4.
  • a plug connection part 8 is arranged in the illustrated embodiment of FIG. 1, which passes through a wall of the lamp housing 2. This connector part 8 is within the lamp housing. 2 Connected via electrical connection lines 12 directly to the ballast 23, which in turn is connected to the sockets 3 for the electrical supply of the lamp 4.
  • fastening means 13 are formed on an outer side of the lamp housing 2 . These may be formed, for example, as latching depressions, Rastvorsprtinge, Einsteckschienen or the like.
  • the fastening means are used for releasable and positive fastening of the lamp housing 2 and thus the lamp 1 to wall, ceiling or mast.
  • a corresponding adapter for the fastening means 13 can be previously attached to the wall, ceiling or mast.
  • An opening of the lamp housing 2 is covered by a translucent cover 7, resulting in a total of an explosion-proof lamp.
  • the cover can be fastened to the luminaire housing, for example, by means of a corresponding closure mechanism.
  • the lighting means 4 is shown, wherein the cover 7 is arranged in Fig. 1 in its closed position 10.
  • a locking device 14 is provided in the cover 7, which has an insertion opening 15.
  • a projection or the like may be integrally formed on the cover, which ensures the locking together with a recess or the like on the connector part.
  • a corresponding locking pin 20 can be inserted as a locking element 19 into this cover.
  • the locking element 19 is arranged on a plug 9, which is arranged at one end 18 of a supply line 6 and connectable to the socket 8 for supplying power to the lamp 1.
  • the locking pin 20 is arranged parallel to and spaced from the plug 9, wherein it is attached via a connecting web 21 on an outer side of the plug. In this case, locking pin 20 can be rotatably mounted with connecting web 21 on the plug 9.
  • the locking pin 20 is above a free end 22 of the movable part (plug) 9 and the insertion opening 15 is formed with a greater insertion depth 16 than the insertion depth 17 of the fixed part (socket) 8.
  • the electrical connection between the socket and plug is only made when the locking pin 20 is almost completely inserted into the insertion opening 15.
  • the invention thus results in a simple to produce and quickly detachable electrical connection that meets all the requirements of explosion protection. Simultaneously with the connection of the plug and socket, the locking of the cover is ensured.
  • the interior of the luminaire can be made simpler in accordance with the invention, since there is no need for special covers for parts still supplied with voltage inside the lamp.
  • the entire luminaire is always disconnected from the voltage in a simple manner, and not only the luminous means. Furthermore, the effort in the electrical connection of the lamp and also when attaching the lamp at the site is reduced. As a result, the lights are cheaper and easier to handle.
  • plug movable connector
  • socket fixed connector

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Connecting Device With Holders (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Cable Accessories (AREA)

Abstract

An explosion-protected light fitting (1) has a light fitting housing (2) and a lighting means (4) which can be fixed to said housing and supplied with electricity by at least one mounting (3). Said mounting can be connected to a supply line (6) and said light fitting housing can be closed with a transparent cover (7) and can only be opened when disconnected from the supply. The aim of the invention is to improve a light fitting in such a way as to provide a simple, economical means of disconnecting the lighting means or the entire light fitting from the supply and at the same time, provide shock protection from parts of the light fitting that are live, taking into account the requirements for explosion-protected light fittings. To this end, a counter-element (8) of a plug-in connection is located externally on the light fitting housing. A corresponding plug-in element (9) of the plug-in connection on the supply line (6) can be connected to said counter-element, especially in an explosion-protected manner. The cover (7) can be locked in its closed position (10) until the plug-in connection is released.

Description

Die Erfindung betrifft eine explosionsgeschützte Leuchte mit einem Leuchtengehäuse und einem an diesem mittels wenigstens einer Fassung befestigbaren und elektrisch versorgbaren Leuchtmittel, welche Fassung über zumindest eine Anschlussklemme mit einer Versorgungsleitung verbindbar ist und welches Leuchtengehäuse durch eine lichtdurchlässige Abdeckung verschließbar und nur im spannungsfreien Zustand zu öffnen ist.The invention relates to an explosion-proof lamp with a lamp housing and an attachable thereto by means of at least one socket and electrically powered bulb, which socket is connectable via at least one terminal to a supply line and which lamp housing can be closed by a translucent cover and only in the tension-free state ,

Bei solchen vorbekannten, explosionsgeschützten Leuchten ist in der Regel innerhalb der Leuchte eine Schalteinrichtung angeordnet, die sicherstellt, dass die Leuchte bei Lösen der Abdeckung spannungsfrei geschaltet wird. Eine solche Schalteinrichtung ist beispielsweise als sogenannter Zwangstrenner ausgebildet. Zur Versorgung der Leuchte sind im Leuchtengehäuse in der Regel Leitungsein- oder -durchführungen ausgebildet, durch die eine entsprechende Versorgungsleitung bis ins Innere des Leuchtengehäuses verlegbar ist. Dort wird die Versorgungsleitung an entsprechenden Anschlussklemmen angeschlossen. Diese ist mit einer Fassung eines Leuchtmittels verbunden.In such prior art, explosion-proof lights a switching device is usually located within the lamp, which ensures that the lamp is disconnected from the voltage when the cover is released. Such a switching device is designed for example as a so-called forced disconnector. To supply the lamp in the luminaire housing usually Leitungssein- or -durchführungen are formed, through which a corresponding supply line can be laid to the inside of the lamp housing. There, the supply line is connected to corresponding terminals. This is connected to a socket of a light bulb.

Bei einer solchen vorbekannten Leuchte soll verhindert werden, dass beispielsweise bei einem Leuchtmittelwechsel unter Spannung stehenden Teile berührt werden können. Soll die gesamte Leuchte ausgetauscht oder repariert werden, ist es in der Regel erforderlich, die Versorgungsleitung selbst spannungsfrei zu schalten.In such a known luminaire is to be prevented that, for example, in a lamp change under voltage parts can be touched. If the entire lamp to be replaced or repaired, it is usually necessary to disconnect the supply line itself voltage.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Leuchte der eingangs genannten Art dahingehend zu verbessern, dass einfach und kostengünstig eine Spannungsfreischaltung des Leuchtmittels oder der Leuchte insgesamt erfolgen kann und gleichzeitig ein Berührungsschutz gegenüber unter Spannung stehenden Teilen der Leuchte und unter Berücksichtigung der Erfordernisse für explosionsgeschützte Leuchten gesichert ist.The invention is therefore an object of the invention to improve a luminaire of the type mentioned in that simple and inexpensive voltage isolation of the lamp or the lamp can be done altogether while protecting against contact with live parts of the lamp and taking into account the requirements for explosion-proof Lights are secured.

Diese Aufgabe wird im Zusammenhang mit den Merkmalen des Oberbegriffs des Anspruchs 1 dadurch gelöst, dass außen am Leuchtengehäuse eine Steckelement angeordnet ist, mit dem ein entsprechendes Gegenelement der Versorgungsleitung insbesondere explosionsgeschützt verbindbar ist, wobei bis zum Lösen der Verbindung von Steckelement und Gegenelement, im folgenden abgekürzt Stecker und Steckbuchse genannt, die Abdeckung in ihrer Schließstellung verriegelt ist.This object is achieved in connection with the features of the preamble of claim 1, characterized in that the outside of the lamp housing, a plug element is arranged, with which a corresponding counter element of the supply line in particular explosion-proof is connected, said until the release of the connection of male and female element, hereinafter abbreviated plug and socket, the cover is locked in its closed position.

Durch die Verlegung des Anschlusses der Versorgungsleitung relativ zur Leuchte nach außen, sind entsprechende aufwendige Leitungseinführungen sowie Anschlussklemmen nicht mehr notwendig. Gleichzeitig ist sichergestellt, dass erst nach Spannungsfreischalten der Leuchte, d.h. nach Lösen der Steckverbindung von Steckelement und Gegenelement, die Abdeckung zum Austausch eines Leuchtmittels geöffnet werden kann oder insgesamt die gesamte Leuchte ausgetauscht oder repariert werden kann. Stecker und Steckbuchse sind insbesondere explosionsgeschützt ausgeführt, um die entsprechenden Sicherheitsbestimmungen beim Einstecken oder Lösen des Steckers einzuhalten. Weitere Einschränkungen bezüglich Stecker und Steckbuchse sind nicht vorhanden, so dass grundsätzlich alle für explosionsgeschützte Bereiche verwendbaren Stecker und Steckbuchsen im Wesentlichen einsetzbar sind.By laying the connection of the supply line relative to the luminaire to the outside, corresponding complex cable entries and terminals are no longer necessary. At the same time, it is ensured that only after the voltage is switched off, ie. after loosening the plug connection of plug-in element and counter element, the cover can be opened for the replacement of a lighting means or, in total, the entire lamp can be replaced or repaired. Plug and socket are designed in particular explosion-proof to comply with the appropriate safety regulations when plugging or loosening the plug. Further restrictions on the plug and socket are not available, so that in principle all usable for explosion-proof areas plug and sockets are essentially used.

Die Verriegelung der Abdeckung in ihrer Schließstellung kann in vielfältiger Weise erfolgen. Die Verriegelung ist allerdings so ausgeführt, dass sie erst nach Lösen der Verbindung zwischen Stecker und Steckbuchse aufgehoben und die Abdeckung zu öffnen oder zu entfemen ist. Ein Beispiel für eine solche Verriegelung ist eine elektrische oder elektromagnetische Verriegelung, die nur bei Spannungsbeaufschlagung der Leuchte über den Stecker eingeschaltet ist. Sobald die Leuchte spannungsfrei geschaltet ist, ist die Verriegelung aufgehoben.The locking of the cover in its closed position can be done in many ways. However, the lock is designed so that it is released only after loosening the connection between the plug and socket and the cover to open or remove is. An example of such a lock is an electrical or electromagnetic lock that is only turned on when the light is applied to the light via the plug. As soon as the luminaire is de-energized, the lock is released.

Die Steckbuchse kann so ausgebildet sein, dass sie eine Einstecköffnung für den Stecker aufweist. Weiterhin besteht die Möglichkeit, dass der Stecker eine die entsprechenden Steckkontakte umgebende Hülse aufweist, die von außen auf die Steckbuchse aufschiebbar ist. Stecker und Steckbuchse können mit unterschiedlichen Querschnitten ausgebildet sein. Dabei kann der Querschnitt zur Codierung von Steckern und Steckbuchsen dienen, so dass beispielsweise nur Versorgungsleitungen mit entsprechender Spannung oder entsprechenden Stromkreisen mit der entsprechenden Leuchte verbindbar sind.The socket can be designed so that it has an insertion opening for the plug. Furthermore, there is the possibility that the plug has a sleeve surrounding the corresponding plug contacts, which can be pushed onto the socket from the outside. Plug and socket can be designed with different cross sections. In this case, the cross-section can be used for coding of plugs and sockets, so that, for example, only supply lines with appropriate voltage or corresponding circuits with the corresponding lamp can be connected.

Um ein zufälliges Lösen der Verbindung zwischen Stecker und Steckbuchse zu vermeiden, kann die Steckbuchse eine Verriegelungseinrichtung für den eingesteckten Stecker aufweisen. Eine solche Verriegelungseinrichtung kann beispielsweise als Bajonettverschluss oder dergleichen ausgebildet sein.To avoid accidental release of the connection between the plug and socket, the socket may have a locking device for the plugged plug. Such a locking device may be formed, for example, as a bayonet lock or the like.

Im Gegensatz zu dem eingangs genannten Stand der Technik ist es erfindungsgemäß nicht mehr notwendig, die Versorgungsleitung bis zu entsprechenden Anschlussklemmen oder Fassungen des Leuchtmittels in die Leuchte hineinzuführen. Statt dessen kann erfindungsgemäß die elektrische Verbindung von der Steckbuchse zum Betriebsmittel innerhalb der Leuchte bereits werksseitig erfolgen.In contrast to the above-mentioned prior art, it is according to the invention no longer necessary to lead the supply line to the corresponding terminals or sockets of the bulb in the lamp. Instead, according to the invention, the electrical connection from the socket to the equipment inside the lamp already done factory.

Da bei den bekannten Leuchten es notwendig war, erst durch Öffnen der Abdeckung des Leuchtmittels und durch Spannungsfreischalten der Versorgungsleitung die gesamte Leuchte spannungsfrei zu schalten, war eine Montage oder Demontage der Leuchte nur bei spannungsfrei geschalteter Versorgungsleitung möglich. Durch die erfindungsgemäße einfache Spannungsfreischaltung der gesamten Leuchte ist dies nicht mehr notwendig. Daher kann das Leuchtengehäuse ohne Aufnahmemittel für Anschlussklemmen oder dergleichen beispielsweise in der Abdeckung ausgebildet sein.Since it was necessary in the known lights, only by opening the cover of the bulb and by disconnecting the power supply line to turn off the entire lamp voltage, a mounting or dismounting of the lamp was only possible with unpowered supply line. The inventive simple voltage isolation of the entire light this is no longer necessary. Therefore, the lamp housing can be formed without receiving means for terminals or the like, for example in the cover.

Befestigungsmittel können direkt am Leuchtengehäuse einteilig angeformt sein und beispielsweise Rastvertiefungen, Rastvorsprünge, Einraststege, Einschubvorsprünge oder dergleichen sein. Auf diese Weise kann die Leuchte durch entsprechendes Verrasten der Befestigungsmittel mit an Decke, Wand oder Mast angeordneten Gegenrastelementen dort lösbar befestigt werden. Anschließend erfolgt das Anbringen des Steckers an der Steckbuchse und gleichzeitig die Verriegelung der Abdeckung.Fastening means can be integrally formed directly on the lamp housing and, for example, locking recesses, locking projections, Einraststege, insertion projections or the like. In this way, the lamp can be releasably secured there by corresponding latching of the fastening means arranged on ceiling, wall or mast counter-locking elements. Subsequently, the attachment of the plug to the socket and at the same time the locking of the cover takes place.

Um die Verriegelung einfacher und mechanisch auszubilden, kann die Abdeckung eine Verriegelungseinrichtung aufweisen, die mit dem eingesteckten Teil der Steckverbindung, beispielsweise dem Stecker, in Eingriff ist. Das heißt, durch Zusammenfügen der Steckverbindung wird die Verriegelung hergestellt, wobei beispielsweise der Stecker bei Annäherung oder bei beginnendem Einstecken in die Steckbuchse ein entsprechendes Verriegelungselement betätigt, das die Abdeckung in ihrer Schließstellung verriegelt.In order to make the lock easier and more mechanical, the cover may have a locking device which engages with the inserted part of the plug connection, for example the plug. That is, by mating the connector, the lock is made, for example, the connector when approaching or starting plugging into the socket actuates a corresponding locking element which locks the cover in its closed position.

Bei einer einfach herstellbaren und leicht zu betätigenden Verriegelungseinrichtung kann diese wenigstens eine Einstecköffnung aufweisen, in die ein entsprechendes Arretierelement des Steckers einsteckbar ist. Das in die Einstecköffnung der Abdeckung eingesteckte Arretierelement des Steckers verhindert dann, dass die Abdeckung relativ zum Stecker beweglich und entsprechend vom Leuchtengehäuse lösbar ist. Es ist auch eine umgekehrte Anordnung von Stecker und Steckbuchse möglich und ebenso kann das an der Leuchte anzubringende Teil der Steckverbindung eine Einstecköffnung und die Leuchte ein entsprechendes Arretierelement aufweisen.In a simple to produce and easy to operate locking device, this can have at least one insertion opening into which a corresponding locking element of the plug can be inserted. The plugged into the insertion of the cover locking element of the plug then prevents the cover is movable relative to the plug and correspondingly detachable from the lamp housing. It is also a reverse arrangement of the plug and socket possible and also can be attached to the lamp part of the connector an insertion and the lamp have a corresponding locking element.

Um in diesem Zusammenhang sicherzustellen, dass die Verriegelung vor Herstellen einer Spannungsversorgung der Leuchte hergestellt bzw. vor Spannungsfreischalten der Leuchte gelöst ist, kann eine Einstecktiefe der Einstecköffnung größer als eine entsprechende Einstecktiefe der Steckverbindung sein.In order to ensure in this context that the locking is made before making a power supply of the lamp or solved before disconnecting the lamp light, an insertion depth of the insertion can be greater than a corresponding insertion depth of the connector.

Die Erfindung betrifft ebenfalls das Teil der Steckverbindung (Steckelement, Stecker), das am Ende der Versorgungsleitung zum Anschließen an einer explosionsgeschützten Leuchte der oben beschriebenen Art angeordnet ist. Dieses Teil ist in das Gegenelement (Steckbuchse) der Leuchte einsteckbar, wobei gleichzeitig oder vorauseilend das Arretierelement in die entsprechende Einstecköffnung in der Abdeckung eingesteckt wird. Selbstverständlich ist auch eine umgekehrte Anordnung von Arretierelement und Einstecköffnung möglich.The invention also relates to the part of the plug connection (plug element, plug) which is arranged at the end of the supply line for connection to an explosion-proof lamp of the type described above. This part can be plugged into the counter element (socket) of the lamp, wherein at the same time or in anticipation the locking element is inserted into the corresponding insertion opening in the cover. Of course, a reverse arrangement of locking and insertion is possible.

Das Arretierelement ist komplementär zur Einstecköffnung ausgebildet. Bei einem einfachen Ausführungsbeispiel kann das Arretierelement ein Arretierstift sein.The locking element is designed to be complementary to the insertion opening. In a simple embodiment, the locking element may be a locking pin.

Um das Arretierelement beim Einstecken des Steckers in einfacher Weise der Einstecköffnung zuordnen zu können, kann das Arretierelement beabstandet und parallel zum Stecker an diesem angeordnet sein.To be able to assign the locking element during insertion of the plug in a simple manner, the insertion, the locking element can be spaced and arranged parallel to the plug at this.

Im einfachsten Fall kann das Arretierelement durch einen Verbindungssteg am Steckelement befestigt sein. Dieser verläuft beispielsweise radial auswärts relativ zum Steckelement und an seinem außenliegenden Ende ist der Arretierstift angeordnet.In the simplest case, the locking element may be fastened by a connecting web on the plug-in element. This extends, for example, radially outward relative to the plug element and at its outer end of the locking pin is arranged.

Um gegebenenfalls das Arretierelement ausrichten zu können, kann dieses relativ zum Stecker verdrehbar sein.In order to be able to align the locking element if necessary, this can be rotated relative to the plug.

Um in einfacher Weise sicherzustellen, dass die Verriegelung der Abdeckung in jedem Fall vor Herstellen der elektrischen Verbindung zwischen Stecker und Steckbuchse erfolgt, kann das Arretierelement über ein freies Ende des an der Versorgungsleitung angeordneten Steckverbindungsteils vorstehen. Dadurch wird noch bei Annäherung an das an der Leuchte angeordnete Gegenelement oder am Beginn des Einsteckens das Arretierelement bereits in die Einstecköffnung eingeschoben und stellt damit die Verriegelung der Abdeckung in ihrer Schließstellung sicher.In order to ensure in a simple manner that the locking of the cover takes place in any case before establishing the electrical connection between the plug and socket, the locking element may protrude over a free end of the arranged on the supply line connector part. As a result, even when approaching the arranged on the lamp counter element or at the beginning of insertion the locking element is already inserted into the insertion and thus ensures the locking of the cover in its closed position.

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 figures attached in the drawing.

Es zeigt:

Fig. 1
eine teilweise geschnittene Seitenansicht einer erfindungsgemäßen Leuchte mit Steckverbindung.
It shows:
Fig. 1
a partially sectioned side view of a lamp according to the invention with connector.

In Fig. 1 ist eine teilweise geschnittene Seitenansicht einer erfindungsgemäßen Leuchte 1 darstellt. Diese weist ein in der Regel wannenförmiges Leuchtengehäuse 2 auf, das beispielsweise an einer Decke, einer Wand, einem Masten oder dergleichen befestigbar ist. Innerhalb des Leuchtengehäuses 2 sind ein Vorschaltgerät 23 (falls erforderlich), Anschlussklemmen 5 und elektrische Anschlussleitungen 12 angeordnet. Weiter stehen aus dem Leuchtengehäuse 2 in der Regel Fassungen 3 oder dergleichen vor, die zur Halterung und elektrischen Versorgung eines Leuchtmittels 4 dienen. Ein solches Leuchtmittel kann beispielsweise eine Leuchtstofflampe, eine Glühlampe, eine Metalldampf-Hochdrucklampe, eine Quecksilberdampf-Hochdrucklampe, eine Natriumdampf-Hochdrucklampe oder dergleichen sein.In Fig. 1 is a partially sectioned side view of a lamp 1 according to the invention. This has a generally trough-shaped light housing 2, which is fastened, for example, to a ceiling, a wall, a mast or the like. Within the lamp housing 2, a ballast 23 (if necessary), terminals 5 and electrical connection lines 12 are arranged. Next stand out of the lamp housing 2 in the rule versions 3 or the like, which are used for holding and electrical supply of a light source 4. Such a luminous means may be, for example, a fluorescent lamp, an incandescent lamp, a metal vapor high pressure lamp, a high pressure mercury vapor lamp, a high pressure sodium vapor lamp or the like.

Die Fassungen sind entsprechend zu dem verwendeten Leuchtmittel 4 ausgebildet. An einer Seite des Leuchtengehäuses 2 ist bei dem dargestellten Ausführungsbeispiel nach Fig. 1 ein Steckverbindungsteil 8 angeordnet, das eine Wandung des Leuchtengehäuses 2 durchsetzt. Dieses Steckverbindungsteil 8 ist innerhalb des Leuchtengehäuses 2 über elektrische Anschlussleitungen 12 direkt mit dem Vorschaltgerät 23 verbunden, welches wiederum mit den Fassungen 3 zur elektrischen Versorgung des Leuchtmittels 4 verbunden ist.The sockets are formed corresponding to the used light source 4. On one side of the lamp housing 2, a plug connection part 8 is arranged in the illustrated embodiment of FIG. 1, which passes through a wall of the lamp housing 2. This connector part 8 is within the lamp housing. 2 Connected via electrical connection lines 12 directly to the ballast 23, which in turn is connected to the sockets 3 for the electrical supply of the lamp 4.

An einer Außenseite des Leuchtengehäuses 2 sind Befestigungsmittel 13 ausgebildet. Diese können beispielsweise als Rastvertiefungen, Rastvorsprtinge, Einsteckschienen oder dergleichen ausgebildet sein. Die Befestigungsmittel dienen zur lösbaren und formschlüssigen Befestigung des Leuchtengehäuses 2 und damit der Leuchte 1 an Wand, Decke oder Mast. Ein entsprechender Adapter für die Befestigungsmittel 13 kann vorher an Wand, Decke oder Mast befestigt werden.On an outer side of the lamp housing 2 fastening means 13 are formed. These may be formed, for example, as latching depressions, Rastvorsprtinge, Einsteckschienen or the like. The fastening means are used for releasable and positive fastening of the lamp housing 2 and thus the lamp 1 to wall, ceiling or mast. A corresponding adapter for the fastening means 13 can be previously attached to the wall, ceiling or mast.

Eine Öffnung des Leuchtengehäuses 2 ist von einer lichtdurchlässigen Abdeckung 7 abgedeckt, wodurch sich insgesamt eine explosionsgeschützte Leuchte ergibt. Die Abdeckung ist beispielsweise durch eine entsprechende Verschlussmechanik am Leuchtengehäuse befestigbar.An opening of the lamp housing 2 is covered by a translucent cover 7, resulting in a total of an explosion-proof lamp. The cover can be fastened to the luminaire housing, for example, by means of a corresponding closure mechanism.

In der Abdeckung 7 ist das Leuchtmittel 4 dargestellt, wobei die Abdeckung 7 in Fig. 1 in ihrer Schließstellung 10 angeordnet ist.In the cover 7, the lighting means 4 is shown, wherein the cover 7 is arranged in Fig. 1 in its closed position 10.

An einer Seite der Leuchte 1 ist in der Abdeckung 7 eine Verriegelungseinrichtung 14 vorgesehen, die eine Einstecköffnung 15 aufweist. Alternativ kann auch ein Vorsprung oder dergleichen an der Abdeckung angeformt sein, welcher zusammen mit einer Aussparung oder dergleichen an dem Steckverbindungsteil die Verriegelung sicherstellt. Ist in der Abdeckung die Einstecköffnung als Sackbohrung oder dergleichen ausgebildet, ist in diese ein entsprechender Arretierstift 20 als Arretierelement 19 einsteckbar ist. Das Arretierelement 19 ist an einem Stecker 9 angeordnet, der an einem Ende 18 einer Versorgungsleitung 6 angeordnet und mit der Steckbuchse 8 zur Spannungsversorgung der Leuchte 1 verbindbar ist. Der Arretierstift 20 ist parallel und beabstandet zum Stecker 9 angeordnet, wobei er über einen Verbindungssteg 21 an einer Außenseite des Steckers befestigt ist. Dabei kann Arretierstift 20 mit Verbindungssteg 21 drehbar am Stecker 9 gelagert sein. Bei umgekehrter Anordnung von Arretierelement und Einstecköffnung gilt das Vorangehende analog.On one side of the lamp 1, a locking device 14 is provided in the cover 7, which has an insertion opening 15. Alternatively, a projection or the like may be integrally formed on the cover, which ensures the locking together with a recess or the like on the connector part. If the insertion opening in the cover is formed as a blind bore or the like, a corresponding locking pin 20 can be inserted as a locking element 19 into this cover. The locking element 19 is arranged on a plug 9, which is arranged at one end 18 of a supply line 6 and connectable to the socket 8 for supplying power to the lamp 1. The locking pin 20 is arranged parallel to and spaced from the plug 9, wherein it is attached via a connecting web 21 on an outer side of the plug. In this case, locking pin 20 can be rotatably mounted with connecting web 21 on the plug 9. With the reverse arrangement of locking element and insertion, the foregoing applies analogously.

Um sicherzustellen, dass vor Herstellen einer elektrischen Verbindung zwischen dem fest angeordneten Teil 8 und dem beweglichen Teil 9 der Steckverbindung die Abdeckung 7 in ihrer Schließstellung 10 verriegelt ist, steht der Arretierstift 20 über ein freies Ende 22 des beweglichen Teils (Stecker) 9 vor und ist die Einstecköffnung 15 mit einer größeren Einstecktiefe 16 als die Einstecktiefe 17 des fest angeordneten Teils (Steckbuchse) 8 ausgebildet. Dabei wird die elektrische Verbindung zwischen Steckbuchse und Stecker erst hergestellt, wenn der Arretierstift 20 nahezu vollständig in die Einstecköffnung 15 eingesteckt ist.To ensure that the cover 7 is locked in its closed position 10 before establishing an electrical connection between the fixed part 8 and the movable part 9 of the connector, the locking pin 20 is above a free end 22 of the movable part (plug) 9 and the insertion opening 15 is formed with a greater insertion depth 16 than the insertion depth 17 of the fixed part (socket) 8. The electrical connection between the socket and plug is only made when the locking pin 20 is almost completely inserted into the insertion opening 15.

Erfindungsgemäß ergibt sich somit eine einfach herstellbare und schnell lösbare elektrische Verbindung, die alle Erfordernisse des Explosionsschutzes erfüllt. Gleichzeitig mit der Verbindung von Stecker und Steckbuchse wird die Verriegelung der Abdeckung sichergestellt. Das Innere der Leuchte kann gemäß der Erfindung einfacher aufgebaut sein, da keine speziellen Abdeckungen für noch spannungsversorgte Teile innerhalb der Lampe vorhanden sein muss. Erfindungsgemäß wird in einfacher Weise immer die gesamte Leuchte spannungsfrei geschaltet, und nicht nur das Leuchtmittel. Weiterhin wird der Aufwand beim elektrischen Anschließen der Leuchte und auch beim Befestigen der Leuchte am Einsatzort reduziert. Dadurch werden die Leuchten preiswerter und sind einfacher handhabbar.According to the invention thus results in a simple to produce and quickly detachable electrical connection that meets all the requirements of explosion protection. Simultaneously with the connection of the plug and socket, the locking of the cover is ensured. The interior of the luminaire can be made simpler in accordance with the invention, since there is no need for special covers for parts still supplied with voltage inside the lamp. According to the invention, the entire luminaire is always disconnected from the voltage in a simple manner, and not only the luminous means. Furthermore, the effort in the electrical connection of the lamp and also when attaching the lamp at the site is reduced. As a result, the lights are cheaper and easier to handle.

Die Ausgestaltung von Stecker (beweglichem Steckverbindungsteil) und Steckerbuchse (festem Steckverbindungsteil) ist so gewählt, dass im explosionsgefährdeten Bereich Stecker und Steckbuchse verbunden oder getrennt werden können, ohne dass ein dabei gegebenenfalls entstehender Schließ- oder Öffnungsfunke ein die Leuchte umgebendes explosionsfähiges Gemisch zünden kann.The design of plug (movable connector) and socket (fixed connector) is selected so that the plug and socket can be connected or disconnected in the hazardous area without any possible resulting closing or opening spark ignite an explosive mixture surrounding the lamp.

Claims (15)

  1. Explosion-protected light (1) having a light housing (2) and a lighting means (4) which can be attached to the latter by at least one mounting (3) and supplied electrically, which mounting (3) can be connected to a supply line (6) and which light housing (2) can be closed by a light-permeable cover (7) and can be opened only in the voltage-free state, characterised in that externally on the light housing (2) is arranged a counter element (8) of a plug connection, with which a corresponding plug element (9) of the plug connection can be connected to the supply line (6) in particular in an explosion-protected manner, wherein the cover (7) is locked in its closed position (10) until release of the plug connection.
  2. Explosion-protected light according to claim 1, characterised in that the cover (7) can be locked in its closed position by inserting the plug element (9).
  3. Explosion-protected light according to claim 1 or 2, characterised in that the counter element (8) has a locking device for the inserted plug element (9).
  4. Explosion-protected light according to at least one of the preceding claims, characterised in that electrical connecting cables (12) are laid from the counter element (8) to terminals (5) of the mounting (3) or a ballast equipment (23).
  5. Explosion-protected light according to at least one of the preceding claims, characterised in that the light housing (2) has attachment means (13) for in particular positive attachment to ceiling, wall or mast.
  6. Explosion-protected light according to claim 5, characterised in that the attachment means (13) are designed as locking depression and/or locking projection and/or catch bar and/or slide-in projection or the like.
  7. Explosion-protected light according to at least one of the preceding claims, characterised in that the cover (7) has a locking device (14), which in closed position (10) of the cover engages with the inserted plug element (9).
  8. Explosion-protected light according to claim 7, characterised in that the locking device (14) has an insertion opening (15).
  9. Explosion-protected light according to claim 8, characterised in that an insertion depth (16) of the insertion opening (11) is greater than a corresponding insertion depth (17) of the counter element (8).
  10. Plug connection having a plug element (9) on the end (18) of a supply line (6) for connection to an explosion-protected light (1) according to one of the preceding claims, characterised in that the plug element (9) has a locking element (19) which can be inserted in an insertion opening (15) in the cover (7) of the light (1).
  11. Plug connection according to claim 10, characterised in that the locking element (19) is a locking pin (20).
  12. Plug connection according to claim 10 or 11, characterised in that the locking element (19) is arranged on the plug element (9) at a distance and parallel to the latter.
  13. Plug connection according to one of claims 10 to 12, characterised in that the locking element (19) is attached to the plug element (9) by a connecting bar (21).
  14. Plug connection according to one of claims 10 to 13, characterised in that the locking element (19) can be rotated relative to the plug element (9).
  15. Plug connection according to one of claims 10 to 14, characterised in that the locking element (19) projects beyond a free end (22) of the plug element (9).
EP01971815A 2000-08-17 2001-07-30 Explosion-protected light fitting and plug-in connection Expired - Lifetime EP1310021B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20014168U DE20014168U1 (en) 2000-08-17 2000-08-17 Explosion-proof luminaire and plug connection
DE20014168U 2000-08-17
PCT/EP2001/008798 WO2002015348A1 (en) 2000-08-17 2001-07-30 Explosion-protected light fitting and plug-in connection

Publications (2)

Publication Number Publication Date
EP1310021A1 EP1310021A1 (en) 2003-05-14
EP1310021B1 true EP1310021B1 (en) 2006-08-23

Family

ID=7945269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01971815A Expired - Lifetime EP1310021B1 (en) 2000-08-17 2001-07-30 Explosion-protected light fitting and plug-in connection

Country Status (5)

Country Link
EP (1) EP1310021B1 (en)
AT (1) ATE337634T1 (en)
DE (2) DE20014168U1 (en)
NO (1) NO324221B1 (en)
WO (1) WO2002015348A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004045455A1 (en) * 2004-09-20 2006-04-06 BöSha GmbH + Co KG Explosion-proof electrical equipment, in particular lights and distribution boxes, in monitored circuits with plug connections

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435744A (en) * 1981-08-10 1984-03-06 Pauluhn Electric Manufacturing Co., Inc. Explosion-proof fluorescent light fixture
DE3818857A1 (en) * 1988-06-03 1989-12-07 Ceag Licht & Strom EXPLOSION-PROTECTED SOCKET FOR TWO-PEN FLUORESCENT LAMPS
DE3911900A1 (en) * 1989-04-12 1990-10-18 Stahl R Schaltgeraete Gmbh EXPLOSION PROTECTED LAMP
US5381321A (en) * 1992-06-02 1995-01-10 Service Machine Co. Luminaire for hazardous atmospheres and explosion proof enclosure for power supply therefor

Also Published As

Publication number Publication date
NO20030712L (en) 2003-04-11
EP1310021A1 (en) 2003-05-14
NO20030712D0 (en) 2003-02-14
ATE337634T1 (en) 2006-09-15
DE20014168U1 (en) 2001-12-20
NO324221B1 (en) 2007-09-10
WO2002015348A1 (en) 2002-02-21
DE50110817D1 (en) 2006-10-05

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