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EP2715225B1 - Covering and luminaire having such a covering - Google Patents

Covering and luminaire having such a covering Download PDF

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Publication number
EP2715225B1
EP2715225B1 EP12725632.9A EP12725632A EP2715225B1 EP 2715225 B1 EP2715225 B1 EP 2715225B1 EP 12725632 A EP12725632 A EP 12725632A EP 2715225 B1 EP2715225 B1 EP 2715225B1
Authority
EP
European Patent Office
Prior art keywords
cover
luminaire
protective cover
previous
protective
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.)
Active
Application number
EP12725632.9A
Other languages
German (de)
French (fr)
Other versions
EP2715225A1 (en
Inventor
Gerhard Schwarz
Reiner Naumann
Rudolf Brandel
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.)
Eaton Protection Systems IP GmbH and Co KG
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Eaton Protection Systems IP GmbH and Co KG
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Publication of EP2715225A1 publication Critical patent/EP2715225A1/en
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Publication of EP2715225B1 publication Critical patent/EP2715225B1/en
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Classifications

    • 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
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/061—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor

Definitions

  • the invention relates to a cover in particular for an explosion-proof lamp.
  • Such lights usually have a housing and at least one light source, wherein a housing opening is closed by such a cover.
  • the cover has a holding frame detachably fastened to the lamp and a transparent lamp cover held by the holding frame at least along a peripheral edge. Through the lamp cover light of the light source comes out to allow a corresponding illumination.
  • Such explosion-proof lights may be floodlights, headlamps, suspension lights or other lights.
  • a corresponding light source is, for example, a halogen lamp, an incandescent lamp, a high-pressure discharge lamp or a plurality of light-emitting diodes (LEDs).
  • associated electrical and electronic devices for operating and controlling the light source may be included in the explosion-proof light.
  • Such a luminaire is used in different temperature ranges. Both with regular operation of the lamp or in tests or the like, there is a risk that microcracks occur in the lamp cover. These can adversely affect the stability of the luminaire cover and in particular worsen the explosion protection properties.
  • EP 0 556 710 A2 shows a lamp with a lamp housing and a transparent disc, which closes the lamp housing forward in the light emission direction.
  • the transparent pane includes a front pane of glass and an auxiliary pane, which is a type of laminated pane form. This is clamped between a lip of a threaded ring and a front end of a reflector.
  • EP 0.556.710 discloses a cover according to the preamble of claim 1.
  • DE 8 802 997 U1 shows a headlamp with a front laminated glass pane and a spaced over an inner disc to this gap.
  • the laminated glass pane is arranged between a radially inwardly pointing shoulder and a mounting ring.
  • the inner disc also abuts against the inwardly facing shoulder and is pressed against it.
  • EP 0 431 462 A2 shows a flashlight with a tubular housing and a cap.
  • a tube is welded whose outer region surrounds a metal core pressure-resistant, which has an internal thread.
  • a threaded ring for fixing a disc assembly is screwed.
  • the disc assembly comprises a cover plate and a protective disc. Cover and protective plate are clamped between a radially inwardly projecting nose of the threaded ring and another threaded ring.
  • GB654205A describes a lamp with a hemispherical housing whose opening is closed by a transparent flat plate.
  • the flat plate is arranged in a groove of a first metal ring and glued there.
  • the present invention has for its object to improve a cover of the type mentioned in that with simple design means and without greater weight gain or cost increase a cover is provided, which is particularly safe to use in hazardous areas.
  • a transparent protective cover of the luminaire cover is provided for the ignition-proof and impact-resistant design of the cover.
  • two corresponding transparent covers are used, of which in particular the lamp cover meets the corresponding requirements in terms of explosion protection, while the protective cover increases at least the shock or impact resistance of the cover and optionally also contributes to explosion protection.
  • Corresponding micro-cracks will occur in this way only in the outer protective cover, without the light cover closer to the corresponding light source is negatively affected in this regard.
  • the transparent protective cover it is possible to make the transparent protective cover relatively thin, since corresponding shocks or blows can be absorbed by the protective cover in a sufficient manner. Even with impact tests to check the cover or In this context, the luminaire is only exposed directly to the force of the corresponding impact or shock while the luminaire cover is protected by the protective cover. Corresponding microcracks will only occur in the protective cover, so that the luminaire cover continues to meet all requirements for flame resistance or pressure resistance in a wide temperature range.
  • the protective cover and luminaire cover are sealed at least in places relative to one another.
  • the corresponding sealing material is arranged along the circumference between the protective cover and the lamp cover.
  • a sealing material is a thin sealing strip, which is applied, for example, before placing the lamp cover on a back of the protective cover. Subsequently, the lamp cover is then pressed against the protective cover, so that also the corresponding sealing strip is subjected to force along its entire length and forms a sufficient seal between the protective cover and the lamp cover. At the same time a corresponding curing of the soverklebung done, so that a secure fixation of the lighting and protective covers is ensured relative to each other with interposed sealing strip.
  • the lamp cover and protective cover are formed with substantially the same geometric dimensions: that is, they have the same widths and lengths with respect to a corresponding light exit opening of the lamp, although the thicknesses may be different.
  • the light cover is thicker than the protective cover.
  • luminaire and / or protective cover are made of a transparent plastic material.
  • they may be formed of glass.
  • Preferred glasses are, for example, borosilicate glass or mineral glass.
  • both covers Due to the corresponding same geometric dimensions of both covers, these can be held in a simplified manner by the holding frame with respect to the luminaire and fixed relative thereto.
  • the holding frame along the peripheral edge of the corresponding covers has a substantially inverted L-shaped cross-section. This serves both for lateral support and for fixing the light and protective cover to the outside.
  • both the luminaire and the protective cover can be pre-assembled and fixed to the luminaire even before the cover is fitted to the luminaire.
  • a corresponding bonding takes place only on site directly when attaching the cover to the lamp.
  • the side bonding is formed essentially with the same adhesive thickness both along the peripheral edge and also with regard to the luminaire and protective cover. In this way, the corresponding soverklebung be applied as evenly applied adhesive before inserting the light and protective cover.
  • the corresponding soverklebung extends usually over the entire height of the covers, so that they are securely held and glued along its circumference.
  • the sealing not only of the covers relative to each other, but also the cover opposite the lamp can be further improved by when an end seal is disposed between the shorter L-leg and the protective cover.
  • This may, for example, extend substantially parallel to the sealing strip along an outer side of the protective cover.
  • the shorter L-leg can have at its free end an end protrusion pointing in the direction of the protective cover. Between this and the longer L-leg, the aforementioned end seal can be arranged and held.
  • the end projection may end at a distance from the protective cover.
  • the sealing strip or the end seal affect the light output of a corresponding lamp, or that when they are applied possibly occurring dirt are visible,
  • the sealing strip and end seal can be covered by the support frame in particular in the direction of light emission.
  • the support frame may have along its circumference a number of fastening recesses.
  • a screw can be arranged, which releasably secured by appropriate screwing with the lamp, the support frame and thus the cover with the associated parts of the lamp.
  • the invention also relates to a corresponding explosion-proof light with a housing and a light source arranged in the housing and a cover for a light exit opening of the housing described above.
  • FIG. 1 shows a partial perspective view of an embodiment of a cover according to the invention 1. This is used for releasably covering a light exit opening 21 of a housing 19 a particular explosion-proof light 2. Within the housing 19 is / are as a light source 20, for example, a halogen lamp, a high-pressure discharge lamp or a Plurality of LEDs arranged.
  • a light source 20 for example, a halogen lamp, a high-pressure discharge lamp or a Plurality of LEDs arranged.
  • the cover 1 is fastened by means of a number of screws 22 on the housing 19 of the lamp 2. These screws 22 are arranged in fastening recesses 18 along a circumference 15 of a holding frame 3 of the cover 1. Corresponding further sealing means between cover 1 and lamp 2 are for simplicity in FIG. 1 not shown.
  • the cover 1 is attached to the lamp 2, that this is a total explosion protection and can be used in hazardous areas.
  • a lamp For example, a floodlight, a headlight, a pendant or the like.
  • Part of the cover 1 is a transparent and usually formed of glass luminaire cover 5. Through this occurs light of the light source 20 from the lamp 2.
  • the lamp cover 5 is fixed by means of the holding frame 3 on the lamp housing 19.
  • the light cover 5 is also provided with a protective cover 6 which is also transparent.
  • Luminaire cover 5 and protective cover 6 may both be formed of glass, such as mineral glass or borosilicate glass.
  • the light cover 5 is thicker than the protective cover 6.
  • the protective cover 6 lies flat on an outer side of the lamp cover 5, wherein along a peripheral edge 4 between the two a sealing material 16 is arranged in the form of a sealing strip 17.
  • a small distance between the lamp cover 5 and the protective cover 6 can be provided outside this sealing strip 17, which additionally prevents transmission to the lamp cover 5 in the event of corresponding impacts or shocks.
  • the corresponding impacts or shocks are absorbed by the protective cover 6, so that only in this possibly corresponding microcracks arise.
  • microcracks also occur in the luminaire cover 5, otherwise their explosion protection properties could be adversely affected.
  • microcracks would adversely affect the stability of the luminaire cover 5 with respect to a corresponding pressurization from the interior of the luminaire 2 forth.
  • microcracks only occur in the corresponding protective cover 6, so that the explosion protection properties of the luminaire cover 5 or luminaire 2 as a whole are in no way negatively influenced.
  • the protective cover 6 is relatively thin, so that neither the weight of the corresponding lamp, nor their construction is negatively affected by corresponding production costs.
  • Luminaire cover 5 and protective cover 6 are held along its peripheral edge 4 by the holding frame 3.
  • 6 serves a byverklebung 9, which extends along a longer L-leg 7 of the support frame 3.
  • this holding frame 3 has an inverted L-shaped cross section.
  • a shorter L-leg 8 is provided, which extends inwardly and the peripheral edge 4 of the lamp cover 5 and protective cover 6 overlaps.
  • an end seal 12 is arranged, which extends in a substantially strip-shaped manner along the peripheral edge 4 between these two covers.
  • the shorter L-leg 8 at its free end 13 in the direction of top 23 of the protective cover 6 protruding end projection 14. This ends spaced from the top 23rd
  • the soverklebung 9 extends along the lamp cover 5 and protective cover 6, but ends substantially flush with the top 23 of the protective cover 6. There is also the possibility that either the isverklebung 9 extends beyond the end seal 12, or that the End seal 12 also extends above the Soverklebung 9.
  • a corresponding adhesive thickness 10 of the soverklebung 9 is substantially constant over the extent thereof along the edges of the lamp cover 5 and protective cover 6, wherein the soverklebung 9 along the entire circumference 11 of the lamp cover 5 and protective cover 6 extends.
  • the inventive cover 1, a corresponding explosion-proof light 2 is protected in a simple and safe way without major additional costs from exposure to shock or shock, so that an occurrence of microcracks in the light cover 5 is largely prevented.
  • the luminaire can be used with such a cover in potentially explosive areas without impairing its corresponding explosion protection properties.
  • any bumps or blows are no longer exerted directly on the light cover 5, but absorbed by the protective cover 6.
  • the avoidance of corresponding microcracks in the luminaire cover 5 means that it can withstand appropriate pressure tests for checking the explosion protection properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

Die Erfindung betrifft eine Abdeckung insbesondere für eine explosionsgeschützte Leuchte. Solche Leuchten weisen in der Regel ein Gehäuse und zumindest eine Lichtquelle auf, wobei eine Gehäuseöffnung durch eine solche Abdeckung verschlossen ist. Die Abdeckung weist in der Regel einen an der Leuchte lösbar befestigbaren Halterahmen und eine vom Halterahmen zumindest entlang eines Umfangrandes gehaltene transparente Leuchtenabdeckung auf. Durch die Leuchtenabdeckung tritt Licht der Lichtquelle aus, um eine entsprechende Beleuchtung zu ermöglichen. Solche explosionsgeschützten Leuchten können Flutlichtstrahler, Scheinwerferleuchten, Hängeleuchten oder auch andere Leuchten sein. Eine entsprechende Lichtquelle ist beispielsweise eine Halogenlampe, eine Glühlampe, eine Hochdruck-Entladungslampe oder eine Mehrzahl von licht-emittierenden Dioden (LEDs). Außer der entsprechenden Lichtquelle können zugehörige elektrische und elektronische Einrichtungen zum Betrieb und der Steuerung der Lichtquelle in der explosionsgeschützten Leuchte enthalten sein.The invention relates to a cover in particular for an explosion-proof lamp. Such lights usually have a housing and at least one light source, wherein a housing opening is closed by such a cover. As a rule, the cover has a holding frame detachably fastened to the lamp and a transparent lamp cover held by the holding frame at least along a peripheral edge. Through the lamp cover light of the light source comes out to allow a corresponding illumination. Such explosion-proof lights may be floodlights, headlamps, suspension lights or other lights. A corresponding light source is, for example, a halogen lamp, an incandescent lamp, a high-pressure discharge lamp or a plurality of light-emitting diodes (LEDs). In addition to the corresponding light source, associated electrical and electronic devices for operating and controlling the light source may be included in the explosion-proof light.

Eine solche Leuchte wird in unterschiedlichen Temperaturbereichen eingesetzt. Sowohl bei regulärem Betrieb der Leuchte oder auch bei Tests oder dergleichen besteht die Gefahr, dass Mikrorisse in der Leuchtenabdeckung auftreten. Diese können die Stabilität der Leuchtenabdeckung negativ beeinflussen und insbesondere die Explosionsschutzeigenschaften verschlechtern.Such a luminaire is used in different temperature ranges. Both with regular operation of the lamp or in tests or the like, there is a risk that microcracks occur in the lamp cover. These can adversely affect the stability of the luminaire cover and in particular worsen the explosion protection properties.

Um beispielsweise Mikrorisse durch Stoßeinwirkung zu vermeiden, werden bereits Leuchten eingesetzt, bei denen die transparente Leuchtenabdeckung durch eine gitterähnliche Metallstruktur geschützt ist. Allerdings sind solche Gitterstrukturen nicht für alle Leuchten verwendbar, da unter anderem auch eine Vielzahl unerwünschter Schatten durch die Gitterstruktur erzeugt werden können.For example, to avoid micro-cracks by impact, lights are already used in which the transparent light cover is protected by a grid-like metal structure. However, such lattice structures can not be used for all luminaires, since, inter alia, a large number of undesired shadows can be generated by the lattice structure.

Aus der Praxis ist eine weitere Leuchte bekannt, bei der die transparente Leuchtenabdeckung relativ dick ist, um solche Mikrorisse zu vermeiden.From practice, another lamp is known in which the transparent light cover is relatively thick in order to avoid such microcracks.

Beide vorangehend genannten Beispiele führen zu erhöhten Kosten und erhöhtem Gewicht. Außerdem wird in der Regel auch die Lichtabgabe negativ beeinflusst, siehe beispielsweise die vorangehend genannten Schatten.Both of the above examples lead to increased costs and increased weight. In addition, as a rule, the light output is also adversely affected, see, for example, the aforementioned shadows.

EP 0 556 710 A2 zeigt eine Leuchte mit einem Lampengehäuse und einer transparenten Scheibe, die das Lampengehäuse nach vorne in Lichtabstrahlrichtung verschließt. Die transparente Scheibe umfasst eine vordere Glasscheibe und eine Zusatzscheibe, die eine Art von Verbundglasscheibe bilden. Diese ist zwischen einer Lippe eines Gewinderings und einem vorderen Ende eines Reflektors eingespannt. EP 0 556 710 A2 shows a lamp with a lamp housing and a transparent disc, which closes the lamp housing forward in the light emission direction. The transparent pane includes a front pane of glass and an auxiliary pane, which is a type of laminated pane form. This is clamped between a lip of a threaded ring and a front end of a reflector.

EP 0.556.710 offenbart eine Abdeckung gemäß dem Oberbegriff des Anspruchs 1. EP 0.556.710 discloses a cover according to the preamble of claim 1.

DE 8 802 997 U1 zeigt einen Scheinwerfer mit einer vorderen Verbundglasscheibe und einer über einen Spalt zu dieser beabstandeten inneren Scheibe. Die Verbundglasscheibe ist zwischen einem radial nach innen weisenden Absatz und einem Montagering angeordnet. Die innere Scheibe liegt ebenfalls an dem nach innen weisenden Absatz an und wird gegen diesen gedrückt. DE 8 802 997 U1 shows a headlamp with a front laminated glass pane and a spaced over an inner disc to this gap. The laminated glass pane is arranged between a radially inwardly pointing shoulder and a mounting ring. The inner disc also abuts against the inwardly facing shoulder and is pressed against it.

EP 0 431 462 A2 zeigt eine Handleuchte mit einem rohrförmigen Gehäuse und einer Abdeckkappe. An dem Gehäuse ist ein Tubus angeschweißt dessen Außenbereich einen Metallkern druckfest umschließt, der ein Innengewinde aufweist. In dieses Innengewinde ist ein Gewindering zur Fixierung einer Scheibenanordnung einschraubbar. Die Scheibenanordnung umfasst eine Abdeckscheibe und eine Schutzscheibe. Abdeckscheibe und Schutzscheibe sind zwischen einer radial nach innen vorstehenden Nase des Gewinderings und einem weiteren Gewindering eingeklemmt. EP 0 431 462 A2 shows a flashlight with a tubular housing and a cap. On the housing, a tube is welded whose outer region surrounds a metal core pressure-resistant, which has an internal thread. In this internal thread a threaded ring for fixing a disc assembly is screwed. The disc assembly comprises a cover plate and a protective disc. Cover and protective plate are clamped between a radially inwardly projecting nose of the threaded ring and another threaded ring.

GB654205A beschreibt eine Leuchte mit einem halbkugelförmigen Gehäuse, dessen Öffnung durch eine transparente flache Platte verschlossen ist. Die flache Platte ist in einer Nut eines ersten Metallrings angeordnet und dort eingeklebt. Es gibt weiterhin eine äußere Abdeckung, die allerdings nicht in Kontakt mit der flachen Platte ist. Stattdessen ist ein Rand der äußeren Abdeckung in einem zweiten Metallring mit einem ringförmigen Filz-Dichtmittel angeordnet. Die äußere Abdeckung, das Filz-Dichtmittel und der zweite Metallring werden durch ein ringförmiges Klemmbauteil befestigt. GB654205A describes a lamp with a hemispherical housing whose opening is closed by a transparent flat plate. The flat plate is arranged in a groove of a first metal ring and glued there. There is also an outer cover which, however, is not in contact with the flat plate. Instead, an edge of the outer cover is disposed in a second metal ring with an annular felt-sealant. The outer cover, the felt sealant and the second metal ring are secured by an annular clamping member.

Vorliegender Erfindung liegt die Aufgabe zugrunde, eine Abdeckung der eingangs genannten Art dahingehend zu verbessern, dass mit einfachen konstruktiven Mitteln und ohne größere Gewichtszunahme oder Kostensteigerung eine Abdeckung bereitgestellt wird, die insbesondere auch in explosionsgefährdeten Bereichen sicher einsetzbar ist.The present invention has for its object to improve a cover of the type mentioned in that with simple design means and without greater weight gain or cost increase a cover is provided, which is particularly safe to use in hazardous areas.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 beziehungsweise des Patentanspruchs 12 gelöst.This object is solved by the features of patent claim 1 and patent claim 12, respectively.

Erfindungsgemäß ist zur zünddurchschlagssicheren und schlagfesten Ausgestaltung der Abdeckung eine transparente Schutzabdeckung der Leuchtenabdeckung vorgesetzt.According to the invention, a transparent protective cover of the luminaire cover is provided for the ignition-proof and impact-resistant design of the cover.

Das heißt, es werden im Prinzip zwei entsprechende transparente Abdeckungen verwendet, von denen insbesondere die Leuchtenabdeckung die entsprechenden Erfordernisse hinsichtlich des Explosionsschutzes erfüllt, während die Schutzabdeckung zumindest die Stoß- oder Schlagfestigkeit der Abdeckung erhöht und gegebenenfalls auch noch zum Explosionsschutz beiträgt. Entsprechende Mikrorisse werden auf diese Weise nur in der äußeren Schutzabdeckung auftreten, ohne dass die der entsprechenden Lichtquelle näher benachbarte Leuchtenabdeckung in dieser Hinsicht negativ beeinflusst wird.That is, in principle, two corresponding transparent covers are used, of which in particular the lamp cover meets the corresponding requirements in terms of explosion protection, while the protective cover increases at least the shock or impact resistance of the cover and optionally also contributes to explosion protection. Corresponding micro-cracks will occur in this way only in the outer protective cover, without the light cover closer to the corresponding light source is negatively affected in this regard.

Es besteht die Möglichkeit, die transparente Schutzabdeckung relativ dünn auszubilden, da entsprechende Stöße oder Schläge von der Schutzabdeckung in ausreichender Weise aufgenommen werden können. Auch bei Schlagtests zur Überprüfung der Abdeckung beziehungsweise Leuchte wird in diesem Zusammenhang nur die äußere Schutzabdeckung direkt der Kraft entsprechender Stöße oder Schläge ausgesetzt, während die Leuchtenabdeckung durch die Schutzabdeckung geschützt ist. Entsprechende Mikrorisse werden nur in der Schutzabdeckung auftreten, so dass die Leuchtenabdeckung weiterhin in einem großen Temperaturbereich allen Anforderungen zur Flammensicherheit oder Druckfestigkeit genügt.It is possible to make the transparent protective cover relatively thin, since corresponding shocks or blows can be absorbed by the protective cover in a sufficient manner. Even with impact tests to check the cover or In this context, the luminaire is only exposed directly to the force of the corresponding impact or shock while the luminaire cover is protected by the protective cover. Corresponding microcracks will only occur in the protective cover, so that the luminaire cover continues to meet all requirements for flame resistance or pressure resistance in a wide temperature range.

Um zu verhindern, dass zwischen die Leuchten- und Schutzabdeckung explosive Gase, Verschmutzungen oder dergleichen eindringen können, sind Schutzabdeckung und Leuchtenabdeckung zumindest stellenweise relativ zueinander abgedichtet.In order to prevent explosive gases, dirt or the like from penetrating between the luminaire and protective cover, the protective cover and luminaire cover are sealed at least in places relative to one another.

Das entsprechende Dichtmaterial ist entlang des Umfangs zwischen Schutzabdeckung und Leuchtenabdeckung angeordnet. Ein solches Dichtmaterial ist ein dünner Dichtstreifen, der beispielsweise vor Anordnen der Leuchtenabdeckung auf einer Rückseite der Schutzabdeckung aufgebracht wird. Anschließend wird dann die Leuchtenabdeckung an die Schutzabdeckung angedrückt, so dass ebenfalls der entsprechende Dichtstreifen entlang seiner gesamten Länge kraftbeaufschlagt wird und eine ausreichende Dichtung zwischen Schutzabdeckung und Leuchtenabdeckung bildet. Gleichzeitig kann ein entsprechendes Aushärten der Seitenverklebung erfolgen, so dass dadurch eine sichere Fixierung der Leuchten- und Schutzabdeckungen relativ zueinander mit dazwischen angeordnetem Dichtstreifen gewährleistet ist.The corresponding sealing material is arranged along the circumference between the protective cover and the lamp cover. Such a sealing material is a thin sealing strip, which is applied, for example, before placing the lamp cover on a back of the protective cover. Subsequently, the lamp cover is then pressed against the protective cover, so that also the corresponding sealing strip is subjected to force along its entire length and forms a sufficient seal between the protective cover and the lamp cover. At the same time a corresponding curing of the Seitenverklebung done, so that a secure fixation of the lighting and protective covers is ensured relative to each other with interposed sealing strip.

Bei einem vorteilhaften Ausführungsbeispiel ist es denkbar, dass Leuchtenabdeckung und Schutzabdeckung mit im Wesentlichen gleichen geometrischen Abmessungen ausgebildet sind: Das heißt, sie weisen hinsichtlich einer entsprechenden Lichtaustrittsöffnung der Leuchte gleiche Breiten und Längen auf, wobei allerdings die Dicken unterschiedlich sein können. In der Regel ist die Leuchtenabdeckung dicker als die Schutzabdeckung.In an advantageous embodiment, it is conceivable that the lamp cover and protective cover are formed with substantially the same geometric dimensions: that is, they have the same widths and lengths with respect to a corresponding light exit opening of the lamp, although the thicknesses may be different. In general, the light cover is thicker than the protective cover.

Es ist denkbar, dass Leuchten- und/oder Schutzabdeckung aus einem transparenten Kunststoffmaterial hergestellt sind. Vorteilhafterweise können sie allerdings aus Glas gebildet sein. Bevorzugte Gläser sind beispielsweise Borosilikatglas oder Mineralglas.It is conceivable that luminaire and / or protective cover are made of a transparent plastic material. Advantageously, however, they may be formed of glass. Preferred glasses are, for example, borosilicate glass or mineral glass.

Es besteht ebenfalls die Möglichkeit, dass Leuchten- und Schutzabdeckung aus unterschiedlichen Materialien hergestellt sind, wobei für die Schutzabdeckung ein schlag- beziehungsweise stoßfesteres Glas ausgesucht werden kann.There is also the possibility that light and protective cover are made of different materials, for the protective cover a shock or impact resistant glass can be selected.

Durch die entsprechenden gleichen geometrischen Abmessungen beider Abdeckungen können diese vereinfacht durch den Halterahmen hinsichtlich der Leuchte gehalten und relativ zu dieser fixiert werden.Due to the corresponding same geometric dimensions of both covers, these can be held in a simplified manner by the holding frame with respect to the luminaire and fixed relative thereto.

Bei einem vorteilhaften Ausführungsbeispiel kann es sich als günstig erweisen, wenn der Halterahmen entlang des Umfangsrandes der entsprechenden Abdeckungen ein im Wesentlichen umgekehrt L-förmigen Querschnitt aufweist. Dieser dient sowohl zur seitlichen Halterung als auch zur Fixierung von Leuchten- und Schutzabdeckung nach außen.In an advantageous embodiment, it may prove to be advantageous if the holding frame along the peripheral edge of the corresponding covers has a substantially inverted L-shaped cross-section. This serves both for lateral support and for fixing the light and protective cover to the outside.

Um die Abdeckung zusammen mit Leuchten- und/oder Schutzabdeckung einfacher handhaben zu können, kann es weiterhin als vorteilhaft betrachtet werden, wenn entlang eines längeren L-Schenkels eine Seitenverklebung zwischen diesem und den Abdeckungen vorgesehen ist. Dadurch können sowohl Leuchten- als auch Schutzabdeckung bereits vor entsprechender Montage der Abdeckung an der Leuchte vormontiert und fixiert sein. Es besteht allerdings auch die Möglichkeit, dass erst vor Ort direkt bei Anbringen der Abdeckung an der Leuchte eine entsprechende Verklebung stattfindet.In order to handle the cover easier together with the light and / or protective cover, it may further be considered advantageous if a side bonding between this and the covers is provided along a longer L-leg. As a result, both the luminaire and the protective cover can be pre-assembled and fixed to the luminaire even before the cover is fitted to the luminaire. However, there is also the possibility that a corresponding bonding takes place only on site directly when attaching the cover to the lamp.

In diesem Zusammenhang kann es weiterhin günstig sein, wenn die Seitenverklebung im Wesentlichen mit gleicher Klebedicke sowohl entlang des Umfangsrandes als auch im Hinblick auf Leuchten- und Schutzabdeckung ausgebildet ist. Auf diese Weise kann die entsprechende Seitenverklebung als gleichmäßig aufgetragene Verklebung vor Einsetzen von Leuchten- und Schutzabdeckung aufgebracht werden.In this context, it can furthermore be favorable if the side bonding is formed essentially with the same adhesive thickness both along the peripheral edge and also with regard to the luminaire and protective cover. In this way, the corresponding Seitenverklebung be applied as evenly applied adhesive before inserting the light and protective cover.

Die entsprechende Seitenverklebung erstreckt sich in der Regel über die gesamte Höhe der Abdeckungen, so dass diese entlang ihres Umfangs sicher gehalten und verklebt sind.The corresponding Seitenverklebung extends usually over the entire height of the covers, so that they are securely held and glued along its circumference.

Die Abdichtung nicht nur der Abdeckungen relativ zueinander, sondern auch der Abdeckung gegenüber der Leuchte kann weiterhin dadurch verbessert werden, wenn zwischen dem kürzeren L-Schenkel und der Schutzabdeckung eine Enddichtung angeordnet ist. Diese kann sich beispielsweise im Wesentlichen parallel zum Dichtstreifen entlang einer Außenseite der Schutzabdeckung erstrecken.The sealing not only of the covers relative to each other, but also the cover opposite the lamp can be further improved by when an end seal is disposed between the shorter L-leg and the protective cover. This may, for example, extend substantially parallel to the sealing strip along an outer side of the protective cover.

Um diese Enddichtung in einfacher Weise zu fixieren und gleichzeitig eine Arte von Labyrinthdichtung in diesem Bereich zu bilden, kann der kürzere L-Schenkel an seinem freien Ende einen in Richtung Schutzabdeckung weisenden Endvorsprung aufweisen. Zwischen diesem und dem längeren L-Schenkel kann die vorangehend genannte Enddichtung angeordnet und gehalten sein.In order to fix this end seal in a simple manner and at the same time to form an artefact of labyrinth seal in this area, the shorter L-leg can have at its free end an end protrusion pointing in the direction of the protective cover. Between this and the longer L-leg, the aforementioned end seal can be arranged and held.

Um zu verhindern, dass der Endvorsprung bei Zusammensetzen der Abdeckung gegebenenfalls die Schutzabdeckung berührt und verkratzt oder gar beschädigt, kann der Endvorsprung beabstandet zur Schutzabdeckung enden.In order to prevent the end projection from touching or scratching or even damaging the protective cover during assembly of the cover, the end projection may end at a distance from the protective cover.

Um zu verhindern, dass gegebenenfalls die Seitenverklebung, der Dichtstreifen oder die Enddichtung die Lichtabgabe einer entsprechenden Leuchte beeinflussen, oder dass bei deren Anbringen gegebenenfalls auftretende Verschmutzungen sichtbar sind, können Seitenverklebung, Dichtstreifen und Enddichtung vom Halterahmen insbesondere in Richtung des Lichtaustritts abgedeckt sein.In order to prevent that possibly the Seitenverklebung, the sealing strip or the end seal affect the light output of a corresponding lamp, or that when they are applied possibly occurring dirt are visible, Seitenverklebung, sealing strip and end seal can be covered by the support frame in particular in the direction of light emission.

Um die Abdeckung in einfacher Weise an einer entsprechenden Leuchte befestigen zu können, kann der Halterahmen entlang seines Umfangs eine Anzahl von Befestigungsvertiefungen aufweisen. In jede dieser Befestigungsvertiefung ist beispielsweise eine Schraube anordbar, die durch entsprechendes Verschrauben mit der Leuchte den Halterahmen und damit die Abdeckung mit den dazugehörigen Teilen an der Leuchte lösbar befestigt.In order to attach the cover in a simple manner to a corresponding lamp, the support frame may have along its circumference a number of fastening recesses. In each of these fastening recess, for example, a screw can be arranged, which releasably secured by appropriate screwing with the lamp, the support frame and thus the cover with the associated parts of the lamp.

Die Erfindung betrifft ebenfalls eine entsprechende explosionsgeschützte Leuchte mit einem Gehäuse und einer in dem Gehäuse angeordneten Lichtquelle sowie einer vorangehend beschriebenen Abdeckung für eine Lichtaustrittsöffnung des Gehäuses.The invention also relates to a corresponding explosion-proof light with a housing and a light source arranged in the housing and a cover for a light exit opening of the housing described above.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand der beigefügten Figur näher beschrieben.In the following, an advantageous embodiment of the invention will be described with reference to the accompanying figure.

Es zeigt:

  • Figur 1 ein teilweise in perspektivischer Ansicht dargestelltes Ausführungsbeispiel für eine erfindungsgemäße Abdeckung.
It shows:
  • FIG. 1 a partially shown in perspective view embodiment of a cover according to the invention.

Figur 1 zeigt eine teilweise perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Abdeckung 1. Diese dient zur lösbaren Abdeckung einer Lichtaustrittsöffnung 21 eines Gehäuses 19 einer insbesondere explosionsgeschützten Leuchte 2. Innerhalb des Gehäuses 19 ist/sind als Lichtquelle 20 beispielsweise eine Halogenlampe, eine Hochdruck-Entladungslampe oder auch eine Mehrzahl von LEDs angeordnet. FIG. 1 shows a partial perspective view of an embodiment of a cover according to the invention 1. This is used for releasably covering a light exit opening 21 of a housing 19 a particular explosion-proof light 2. Within the housing 19 is / are as a light source 20, for example, a halogen lamp, a high-pressure discharge lamp or a Plurality of LEDs arranged.

Die Abdeckung 1 ist mittels einer Anzahl von Schrauben 22 am Gehäuse 19 der Leuchte 2 befestigbar. Diese Schrauben 22 sind in Befestigungsvertiefungen 18 entlang eines Umfangs 15 eines Halterahmens 3 der Abdeckung 1 angeordnet. Entsprechende weitere Dichtmittel zwischen Abdeckung 1 und Leuchte 2 sind zur Vereinfachung in Figur 1 nicht dargestellt.The cover 1 is fastened by means of a number of screws 22 on the housing 19 of the lamp 2. These screws 22 are arranged in fastening recesses 18 along a circumference 15 of a holding frame 3 of the cover 1. Corresponding further sealing means between cover 1 and lamp 2 are for simplicity in FIG. 1 not shown.

Die Abdeckung 1 ist so an der Leuchte 2 angebracht, dass diese insgesamt explosionsgeschützt ist und in explosionsgefährdeten Bereichen einsetzbar ist. Eine solche Leuchte ist beispielsweise ein Flutlichtstrahler, eine Scheinwerferleuchte, eine Hängeleuchte oder dergleichen.The cover 1 is attached to the lamp 2, that this is a total explosion protection and can be used in hazardous areas. Such a lamp For example, a floodlight, a headlight, a pendant or the like.

Teil der Abdeckung 1 ist eine transparente und in der Regel aus Glas gebildete Leuchtenabdeckung 5. Durch diese tritt Licht der Lichtquelle 20 aus der Leuchte 2 aus. Die Leuchtenabdeckung 5 wird mittels des Halterahmens 3 am Leuchtengehäuse 19 befestigt.Part of the cover 1 is a transparent and usually formed of glass luminaire cover 5. Through this occurs light of the light source 20 from the lamp 2. The lamp cover 5 is fixed by means of the holding frame 3 on the lamp housing 19.

Um die Leuchtenabdeckung 5 vor Stößen und Schlägen zu schützen, durch die gegebenenfalls Mikrorisse in der Leuchtenabdeckung 5 entstehen können, ist der Leuchtenabdeckung 5 eine ebenfalls transparente Schutzabdeckung 6 vorgesetzt. Leuchtenabdeckung 5 und Schutzabdeckung 6 können beide aus Glas gebildet sein, wie beispielsweise Mineralglas oder Borosilikatglas. In der Regel ist die Leuchtenabdeckung 5 dicker, als die Schutzabdeckung 6. Die Schutzabdeckung 6 liegt flächig auf einer Außenseite der Leuchtenabdeckung 5 auf, wobei entlang eines Umfangsrandes 4 zwischen beiden ein Dichtmaterial 16 in Form eines Dichtstreifens 17 angeordnet ist. Dadurch kann ein geringer Abstand zwischen Leuchtenabdeckung 5 und Schutzabdeckung 6 außerhalb dieses Dichtstreifens 17 vorgesehen sein, der zusätzlich bei entsprechenden Schlägen oder Stößen eine Übertragung auf die Leuchtenabdeckung 5 verhindert. Die entsprechenden Schläge oder Stöße werden durch die Schutzabdeckung 6 aufgenommen, so dass nur in dieser gegebenenfalls entsprechende Mikrorisse entstehen.In order to protect the light cover 5 from shocks and blows, which may possibly cause micro-cracks in the light cover 5, the light cover 5 is also provided with a protective cover 6 which is also transparent. Luminaire cover 5 and protective cover 6 may both be formed of glass, such as mineral glass or borosilicate glass. In general, the light cover 5 is thicker than the protective cover 6. The protective cover 6 lies flat on an outer side of the lamp cover 5, wherein along a peripheral edge 4 between the two a sealing material 16 is arranged in the form of a sealing strip 17. As a result, a small distance between the lamp cover 5 and the protective cover 6 can be provided outside this sealing strip 17, which additionally prevents transmission to the lamp cover 5 in the event of corresponding impacts or shocks. The corresponding impacts or shocks are absorbed by the protective cover 6, so that only in this possibly corresponding microcracks arise.

Würden entsprechende Mikrorisse auch in der Leuchtenabdeckung 5 auftreten, könnten ansonsten deren Explosionsschutzeigenschaften negativ beeinflusst werden. Beispielsweise würden solche Mikrorisse die Stabilität der Leuchtenabdeckung 5 hinsichtlich einer entsprechenden Druckbeaufschlagung vom Inneren der Leuchte 2 her negativ beeinflussen. Solche Mikrorisse treten erfindungsgemäß in der Regel nur in der entsprechenden Schutzabdeckung 6 auf, so dass die Explosionsschutzeigenschaften von Leuchtenabdeckung 5 beziehungsweise Leuchte 2 insgesamt in keiner Weise negativ beeinflusst werden. Außerdem ist die Schutzabdeckung 6 relativ dünn, so dass weder das Gewicht der entsprechenden Leuchte, noch deren Konstruktion mit entsprechenden Herstellungskosten negativ beeinflusst wird.If corresponding microcracks also occur in the luminaire cover 5, otherwise their explosion protection properties could be adversely affected. For example, such microcracks would adversely affect the stability of the luminaire cover 5 with respect to a corresponding pressurization from the interior of the luminaire 2 forth. As a rule, such microcracks only occur in the corresponding protective cover 6, so that the explosion protection properties of the luminaire cover 5 or luminaire 2 as a whole are in no way negatively influenced. In addition, the protective cover 6 is relatively thin, so that neither the weight of the corresponding lamp, nor their construction is negatively affected by corresponding production costs.

Leuchtenabdeckung 5 und Schutzabdeckung 6 werden entlang ihres Umfangrandes 4 vom Halterahmen 3 gehalten. Zur Fixierung beider Abdeckungen 5, 6 dient eine Seitenverklebung 9, die sich entlang eines längeren L-Schenkels 7 des Halterahmens 3 erstreckt. Im Bereich des Umfangsrandes 4 weist dieser Halterahmen 3 einen umgekehrt L-förmigen Querschnitt auf. Neben dem längeren L-Schenkel 7 ist ein kürzerer L-Schenkel 8 vorgesehen, der sich nach innen erstreckt und den Umfangsrand 4 von Leuchtenabdeckung 5 und Schutzabdeckung 6 übergreift. Zwischen dem kürzeren L-Schenkel 8 und einer Oberseite 23 der Schutzabdeckung 6 ist eine Enddichtung 12 angeordnet, die sich im Wesentlichen streifenförmig entlang des Umfangsrandes 4 zwischen diesen beiden Abdeckungen erstreckt. Zur Halterung der entsprechenden Enddichtung 12 weist der kürzere L-Schenkel 8 an seinem freien Ende 13 einen in Richtung Oberseite 23 der Schutzabdeckung 6 vorstehenden Endvorsprung 14 auf. Dieser endet beabstandet von der Oberseite 23.Luminaire cover 5 and protective cover 6 are held along its peripheral edge 4 by the holding frame 3. To fix both covers 5, 6 serves a Seitenverklebung 9, which extends along a longer L-leg 7 of the support frame 3. In the region of the peripheral edge 4, this holding frame 3 has an inverted L-shaped cross section. In addition to the longer L-leg 7, a shorter L-leg 8 is provided, which extends inwardly and the peripheral edge 4 of the lamp cover 5 and protective cover 6 overlaps. Between the shorter L-leg 8 and a top 23 of the protective cover 6, an end seal 12 is arranged, which extends in a substantially strip-shaped manner along the peripheral edge 4 between these two covers. For holding the corresponding end seal 12, the shorter L-leg 8 at its free end 13 in the direction of top 23 of the protective cover 6 protruding end projection 14. This ends spaced from the top 23rd

Bei dem dargestellten Ausführungsbeispiel erstreckt sich die Seitenverklebung 9 entlang Leuchtenabdeckung 5 und Schutzabdeckung 6, endet allerdings im Wesentlichen bündig zur Oberseite 23 der Schutzabdeckung 6. Es besteht ebenfalls die Möglichkeit, dass sich entweder die Seitenverklebung 9 bis hinter die Enddichtung 12 erstreckt, oder dass die Enddichtung 12 sich auch oberhalb der Seitenverklebung 9 erstreckt.In the illustrated embodiment, the Seitenverklebung 9 extends along the lamp cover 5 and protective cover 6, but ends substantially flush with the top 23 of the protective cover 6. There is also the possibility that either the Seitenverklebung 9 extends beyond the end seal 12, or that the End seal 12 also extends above the Seitenverklebung 9.

Eine entsprechende Klebedicke 10 der Seitenverklebung 9 ist über deren Erstreckung entlang der Ränder von Leuchtenabdeckung 5 und Schutzabdeckung 6 im Wesentlichen konstant, wobei sich die Seitenverklebung 9 entlang des gesamten Umfangs 11 von Leuchtenabdeckung 5 und Schutzabdeckung 6 erstreckt.A corresponding adhesive thickness 10 of the Seitenverklebung 9 is substantially constant over the extent thereof along the edges of the lamp cover 5 and protective cover 6, wherein the Seitenverklebung 9 along the entire circumference 11 of the lamp cover 5 and protective cover 6 extends.

Durch die erfindungsgemäße Abdeckung 1 wird eine entsprechende explosionsgeschützte Leuchte 2 in einfacher und sicherer Weise ohne größere Mehrkosten vor einer Beaufschlagung mit Stößen oder Schlägen geschützt, so dass ein Auftreten von Mikrorissen in der Leuchtenabdeckung 5 weitestgehend verhindert ist. Dadurch ist die Leuchte mit einer solchen Abdeckung in explosionsgefährdeten Bereichen ohne Beeinträchtigung ihrer entsprechenden Explosionsschutzeigenschaften einsetzbar.The inventive cover 1, a corresponding explosion-proof light 2 is protected in a simple and safe way without major additional costs from exposure to shock or shock, so that an occurrence of microcracks in the light cover 5 is largely prevented. As a result, the luminaire can be used with such a cover in potentially explosive areas without impairing its corresponding explosion protection properties.

Jegliche Stöße oder Schläge werden nicht mehr direkt auf die Leuchtenabdeckung 5 ausgeübt, sondern von der Schutzabdeckung 6 aufgenommen. Das Vermeiden entsprechender Mikrorisse in der Leuchtenabdeckung 5 führt dazu, dass diese auch entsprechenden Drucktests zur Überprüfung der Explosionsschutzeigenschaften standhalten kann.Any bumps or blows are no longer exerted directly on the light cover 5, but absorbed by the protective cover 6. The avoidance of corresponding microcracks in the luminaire cover 5 means that it can withstand appropriate pressure tests for checking the explosion protection properties.

Claims (12)

  1. Cover (1), in particular for an explosion-proof luminaire (2), with a mounting frame (3) which can be detachably fastened to the luminaire (2) and a transparent protective cover (6) held by the mounting frame at least along a circumferential edge (4), wherein
    characterised in that
    a transparent protective cover (6) is placed in front of the luminaire cover (5) for a flameproof and impact-resistant embodiment of the cover (1), wherein characterized in that the luminaire and protective covers (5, 6) are sealed relative to one another, at least in places and a sealing material (16) is arranged along the circumference (11) between the protective and luminaire covers (6, 5), which sealing material (16) is a sealing strip (17).
  2. Cover according to Claim 1,
    characterised in that
    the protective cover (6) and luminaire cover (5) are essentially formed with the same geometrical dimensions.
  3. Cover according to Claim 1 or 2,
    characterised in that
    the protective cover (6) and / or luminaire cover (5) are formed from glass.
  4. Cover according to one of the previous claims,
    characterised in that
    the mounting frame (3) along the circumferential edge (4) comprises essentially an inverted L-shaped cross section (7, 8).
  5. Cover according to one of the previous claims,
    characterised in that
    side adhesion (9) is provided along a longer L-limb (7) between said limb and the luminaire and / or protective cover (5, 6).
  6. Cover according to one of the previous claims,
    characterised in that
    the side adhesion (9) is essentially formed with uniform adhesive thickness (10).
  7. Cover according to one of the previous claims,
    characterised in that
    an end seal (12) is arranged between the shorter L-limb (8) and the protective cover (6).
  8. Cover according to one of the previous claims,
    characterised in that
    the shorter L-limb (8) comprises an end projection (14) at its free end (13) pointing in the direction of the protective cover (6).
  9. Cover according to one of the previous claims,
    characterised in that
    the end projection (14) terminates spaced to the protective cover (6).
  10. Cover according to one of the previous claims,
    characterised in that
    the side adhesive (9), sealing strip (17) and end seal (12) are covered by the mounting frame (3).
  11. Cover according to one of the previous claims,
    characterised in that
    the mounting frame (3) comprises a number of mounting recesses (18) along its circumference (15).
  12. Explosion-proof luminaire (2) with a light source arranged in a housing and a cover (1) according to one of the preceding claims for a light outlet (21) of the housing (19).
EP12725632.9A 2011-06-03 2012-06-04 Covering and luminaire having such a covering Active EP2715225B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011103491.2A DE102011103491B4 (en) 2011-06-03 2011-06-03 Cover and luminaire with such a cover
PCT/EP2012/002394 WO2012163552A1 (en) 2011-06-03 2012-06-04 Covering and luminaire having such a covering

Publications (2)

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EP2715225A1 EP2715225A1 (en) 2014-04-09
EP2715225B1 true EP2715225B1 (en) 2017-02-08

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US (1) US9400098B2 (en)
EP (1) EP2715225B1 (en)
KR (1) KR101988679B1 (en)
CN (2) CN108954261A (en)
AU (1) AU2012265188C1 (en)
BR (1) BR112013031007B1 (en)
CA (1) CA2837907A1 (en)
DE (1) DE102011103491B4 (en)
RU (1) RU2601606C2 (en)
SA (1) SA112330562B1 (en)
WO (1) WO2012163552A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE429720C (en) * 1925-03-15 1926-06-05 Heinrich Meyer Miner's lamp with reflector
US1921069A (en) * 1931-09-04 1933-08-08 Thomas & Betts Corp Safety lamp
GB654205A (en) * 1948-10-22 1951-06-13 Gen Electric Co Ltd Improvements in or relating to flameproof electric lighting fittings

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050839A (en) * 1932-10-22 1936-08-11 Crouse Hinds Co Explosion resisting lighting unit
US2089049A (en) * 1933-01-25 1937-08-03 Benjamin Electric Mfg Co Explosionproof lighting fixture
US2094394A (en) * 1936-11-05 1937-09-28 Crouse Hinds Co Explosionproof lighting fixture
US2330935A (en) * 1942-01-21 1943-10-05 Holophane Co Inc Combined building walls and lighting equipment
US2339670A (en) * 1942-05-21 1944-01-18 John A Benson Explosion-proof lighting unit
US2786936A (en) * 1950-07-22 1957-03-26 Arthur I Appleton Explosion-proof lighting unit
US2849597A (en) * 1956-10-02 1958-08-26 Crouse Hinds Co Explosion proof lighting unit
DE1589395A1 (en) * 1967-08-26 1970-07-09 Oberweimar Elektroinstallation Firedamp and explosion-proof luminaire with flat cover glass panes, especially for fluorescent lamps
US4489367A (en) * 1983-09-16 1984-12-18 Herron Charles R Headlight permissible for use in explosive atmospheres
DE8500175U1 (en) * 1985-01-05 1988-03-31 Elektro-Industrie-Montage Stein & Vendel GmbH & Co, 4650 Gelsenkirchen Lamp designed as a halogen spotlight for rooms at risk from mine gas, preferably for installation on machines and equipment in underground operations
DE3622109A1 (en) * 1986-07-02 1988-01-07 Promat Gmbh Luminaire for rooms exposed to fire hazard
DE8802997U1 (en) * 1988-03-05 1988-04-21 Huppertz & Schneider GmbH & Co, 4600 Dortmund Headlights for underground vehicles
DE3940189A1 (en) * 1989-12-05 1991-06-06 Ceag Licht & Strom HAND LAMP
DE4204669A1 (en) * 1992-02-17 1993-08-19 Abb Patent Gmbh LAMP
CN1121154A (en) * 1994-09-14 1996-04-24 毛传礼 All-plastic explosion-proof fluorescent lamp
US7011436B2 (en) * 2003-01-28 2006-03-14 Genlyte Thomas Group, Llc In-grade light fixture with hydraulic isolation
US7237924B2 (en) * 2003-06-13 2007-07-03 Lumination Llc LED signal lamp
GB0501309D0 (en) * 2005-01-24 2005-03-02 Lumidrives Ltd Sealed light fixture
CN201050700Y (en) * 2007-04-25 2008-04-23 深圳市海洋王投资发展有限公司 Solid state bright light explosion-proof head lamp
US20090135607A1 (en) * 2007-11-27 2009-05-28 Cooper Technologies Company Lighting fixture and method
WO2009143887A1 (en) * 2008-05-29 2009-12-03 Osram Gesellschaft mit beschränkter Haftung Explosion protection system for a high pressure lamp
EP2256402A4 (en) * 2008-06-27 2012-08-15 Toshiba Lighting & Technology LIGHT-EMITTING AND LUMINAIRE ELEMENT LAMP
CN201229925Y (en) * 2008-07-01 2009-04-29 张誉耀 High-frequency electrodeless explosion-proof lamp
US8297811B2 (en) * 2008-07-28 2012-10-30 Koito Manufacturing Co., Ltd. Aircraft lamp
US8641245B2 (en) * 2008-08-25 2014-02-04 Nanker (Guangzhou) Semiconductor Manufacturing Corp. Radiating device for lamp and LED lamp
CN101676602A (en) * 2008-09-19 2010-03-24 东芝照明技术株式会社 Lamp device and lighting apparatus
RU84507U1 (en) * 2009-04-01 2009-07-10 Общество с ограниченной ответственностью Фирма "Индустрия" EXPLOSION-FREE LAMP
CN201526847U (en) * 2009-09-21 2010-07-14 新汶矿业集团有限责任公司 Underground explosion-proof signal lamp
CN201555073U (en) * 2009-10-29 2010-08-18 中国石油化工股份有限公司 LED energy-saving explosion-proof lamp
CN201531850U (en) * 2009-11-05 2010-07-21 海星海事电气集团有限公司 Incandescent explosion-proof lighting lamp
CN101788111B (en) * 2010-01-15 2012-07-04 上海开腾信号设备有限公司 Quasi-fluorescence LED illumination monomer and application thereof
US8910822B2 (en) * 2010-04-29 2014-12-16 Defond Components Limited Method of forming sealed enclosure
CN201688361U (en) * 2010-05-31 2010-12-29 淮北金宇机电设备制造有限公司 Anti-explosion lamp
CN101881396B (en) * 2010-07-23 2013-03-20 王德玺 Anti-explosion lamp
CN201779487U (en) * 2010-07-23 2011-03-30 王德玺 Explosion-proof lamp
CN201764353U (en) * 2010-07-28 2011-03-16 陈策 Mining LED lamp body and mining LED roadway lamp employing same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE429720C (en) * 1925-03-15 1926-06-05 Heinrich Meyer Miner's lamp with reflector
US1921069A (en) * 1931-09-04 1933-08-08 Thomas & Betts Corp Safety lamp
GB654205A (en) * 1948-10-22 1951-06-13 Gen Electric Co Ltd Improvements in or relating to flameproof electric lighting fittings

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BR112013031007A2 (en) 2016-11-29
AU2012265188B2 (en) 2015-06-11
AU2012265188A1 (en) 2014-01-09
EP2715225A1 (en) 2014-04-09
DE102011103491A1 (en) 2012-12-06
US20140307448A1 (en) 2014-10-16
CN108954261A (en) 2018-12-07
WO2012163552A1 (en) 2012-12-06
US9400098B2 (en) 2016-07-26
CA2837907A1 (en) 2012-12-06
RU2601606C2 (en) 2016-11-10
KR20140037143A (en) 2014-03-26
BR112013031007B1 (en) 2020-05-12
DE102011103491B4 (en) 2014-10-30
KR101988679B1 (en) 2019-06-12
CN103717965A (en) 2014-04-09
RU2013155767A (en) 2015-07-20
WO2012163552A4 (en) 2013-02-21
SA112330562B1 (en) 2015-07-07
AU2012265188C1 (en) 2015-10-01

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