EP1635111A2 - Transparent covers for explosion-proof luminaires - Google Patents

Transparent covers for explosion-proof luminaires Download PDF

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Publication number
EP1635111A2
EP1635111A2 EP05019606A EP05019606A EP1635111A2 EP 1635111 A2 EP1635111 A2 EP 1635111A2 EP 05019606 A EP05019606 A EP 05019606A EP 05019606 A EP05019606 A EP 05019606A EP 1635111 A2 EP1635111 A2 EP 1635111A2
Authority
EP
European Patent Office
Prior art keywords
explosion
cover
proof
lights according
side surfaces
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.)
Withdrawn
Application number
EP05019606A
Other languages
German (de)
French (fr)
Other versions
EP1635111A3 (en
Inventor
GmbH + Co. KG BöSha
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.)
Boesha Technische Produkte GmbH and Co KG
Original Assignee
BOESHA GmbH CO KG
Boesha GmbH and Co KG
Boesha Technische Produkte GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BOESHA GmbH CO KG, Boesha GmbH and Co KG, Boesha Technische Produkte GmbH and Co KG filed Critical BOESHA GmbH CO KG
Publication of EP1635111A2 publication Critical patent/EP1635111A2/en
Publication of EP1635111A3 publication Critical patent/EP1635111A3/en
Withdrawn legal-status Critical Current

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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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • 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
    • F21Y2113/00—Combination of light sources

Definitions

  • the invention is based on the problem, transparent luminaire covers - whether clear-transparent or in combination with a structuring - to be designed so that an optimal, glare-free light scattering is achieved without affecting the luminous efficacy.
  • This problem is solved with the features of claim 1.
  • the luminaire cover has at least on the outer surface in the area above the light source, one or more convex elevations which, with the luminaire assembled and switched on, ensure that the light rays from the underlying light source (s) are distributed evenly and without glare, without limiting the luminous efficacy.

Abstract

Transparent cover comprises a convex protrusion located over each luminescent lamp. Preferred Features: Reinforcing ribs are arranged between the side surfaces and holding surfaces. Holding pins for hood holding straps are arranged on the side surfaces.

Description

Für explosionsgeschützte Leuchten existieren bisher transparente Abdeckungen aus Kunststoff oder Glas, die entweder klardurchsichtig oder auf verschiedenste Weise - durch Rippung, Riffelung, Mattierung etc. - strukturiert sind. Im zweiten Fall wird mit der jeweiligen Strukturierung bewirkt, dass die Lichtstrahlen der hinter der Abdeckung befindlichen Lichtquellen (z.B. Leuchtstofflampen) gestreut werden und gleichzeitig Blendeffekte vermieden werden. Ebenso bedeuten diese Konstruktionen jedoch, dass die Lichtstrahlen mittels der Strukturierung stark gebrochen werden, um die beabsichtigten Wirkungen zu erzielen, und das führt zwangsläufig zu einem gewissen Verlust bei der Lichtausbeute.For explosion-proof lights exist so far transparent covers made of plastic or glass, which are either transparent or in a variety of ways - by ribbing, ribbing, matting, etc. - are structured. In the second case, the respective patterning causes the light rays of the light sources (e.g., fluorescent lamps) behind the cover to be scattered while avoiding glare. However, these constructions also mean that the light rays are strongly refracted by structuring to achieve the intended effects, and this inevitably leads to some loss in light output.

Aus der Offenlegungsschrift DE 29 42 995 A1 ist eine explosionsgeschützte Lampenabdeckung bekannt, bestehend aus einem transparenten Kunststoffhohlkörper, der durch leitfähig geerdete Streifen in schmale Zonen oder Felder unterteilt ist.
Eine Einrichtung zur Brechung von Lichtstrahlen einer Lichtquelle an Prismen oder Linsenstrukturen wird in der Druckschrift DE 42 22 897 A1 gezeigt.From the published patent application DE 29 42 995 A1 an explosion-proof lamp cover is known, consisting of a transparent plastic hollow body, which is divided by conductive grounded strips in narrow zones or fields.
A device for refraction of light beams of a light source to prisms or lens structures is shown in the document DE 42 22 897 A1.

Der Erfindung liegt das Problem zugrunde, transparente Leuchtenabdeckungen - ob klar-transparent oder in Kombination mit einer Strukturierung - so zu gestalten, dass eine optimale, blendfreie Lichtstreuung erreicht wird, ohne die Lichtausbeute zu beeinträchtigen.
Dieses Problem wird mit den Merkmalen des Patentanspruchs 1 gelöst. Die Leuchtenabdeckung besitzt an der äußeren Oberfläche mindestens im Bereich über der Lichtquelle ein oder mehrere konvexe Erhebungen, die bei zusammengebauter und angeschalteter Leuchte dafür sorgen, dass die Lichtstrahlen der dahinterliegenden Lichtquelle(n) gleichmäßig und blendfrei verteilt werden, ohne dass die Lichtausbeute eingeschränkt wird.The invention is based on the problem, transparent luminaire covers - whether clear-transparent or in combination with a structuring - to be designed so that an optimal, glare-free light scattering is achieved without affecting the luminous efficacy.
This problem is solved with the features of claim 1. The luminaire cover has at least on the outer surface in the area above the light source, one or more convex elevations which, with the luminaire assembled and switched on, ensure that the light rays from the underlying light source (s) are distributed evenly and without glare, without limiting the luminous efficacy.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen am Beispiel einer explosionsgeschützten Langfeldleuchte dargestellt und wird im folgenden näher beschrieben.

  • Figur 1 zeigt schematisch im Querschnitt eine strukturierttransparente Leuchtenabdeckung mit konvexen Erhebungen an der Außenoberfläche.
  • Figur 2 zeigt schematisch den Aufbau einer explosionsgeschützten Langfeldleuchte mit einer klar-transparenten Abdeckung mit konvexen Erhebungen.

Die Leuchte besteht im wesentlichen aus dem Gehäuse 1 mit eingebauter Elektronik, dem Reflektor 2 mit Leuchtstofflampen (Lichtquellen) 3 und der klar-transparenten Abdeckung 4 mit konvexen Erhebungen. Die Abdeckung 4 ist am Gehäuse 1 über Halteflächen 6 und am Gehäuse 1 angeordnete Verriegelungsschienen 7 befestigt. Damit die Abdeckung 4 im demontierten Zustand nicht abfällt, können nicht gezeigte Haubenhaltelaschen an den Haltestiften 8 und im Gehäuse. 1 befestigt werden.An embodiment of the invention is illustrated in the drawings using the example of an explosion-proof field lamp and will be described in more detail below.
  • Figure 1 shows schematically in cross-section a structured transparent luminaire cover with convex elevations on the outer surface.
  • Figure 2 shows schematically the structure of an explosion-proof field lamp with a clear-transparent cover with convex elevations.

The luminaire consists essentially of the housing 1 with built-in electronics, the reflector 2 with fluorescent lamps (light sources) 3 and the clear-transparent cover 4 with convex elevations. The cover 4 is attached to the housing 1 via retaining surfaces 6 and arranged on the housing 1 locking rails 7. So that the cover 4 does not fall off in the disassembled state, hood holding tabs, not shown, on the holding pins 8 and in the housing. 1 are attached.

Claims (7)

Transparente Abdeckung für explosionsgeschützte Leuchten, insbesondere Langfeldleuchten, mit ein oder mehreren Leuchtstofflampen,
dadurch gekennzeichnet,
dass sich über jeder Leuchtstofflampe eine konvexe Erhebung befindet.Transparent cover for explosion-proof luminaires, in particular linear luminaires, with one or more fluorescent lamps,
characterized,
that there is a convex elevation above each fluorescent lamp. Abdeckung für explosionsgeschützte Leuchten nach Anspruch 1,
dadurch gekennzeichnet,
dass sich über zwei Leuchtstofflampen je eine konvexe Erhebung befindet, zwischen denen eine Struktur ausgebildet ist.Cover for explosion-proof lights according to claim 1,
characterized,
that there is a convex elevation above two fluorescent lamps, between which a structure is formed. Abdeckung für explosionsgeschützte Leuchten nach Anspruch 1,
dadurch gekennzeichnet,
dass sich über drei Leuchtstofflampen je eine konvexe Erhebung befindet, zwischen denen eine Struktur ausgebildet ist.Cover for explosion-proof lights according to claim 1,
characterized,
that there is a convex elevation above three fluorescent lamps, between which a structure is formed. Abdeckung für explosionsgeschützte Leuchten nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass sich Verstärkungsrippen (5) zwischen den Seitenflächen und den zugehörigen Halteflächen (6) befinden.Cover for explosion-proof lights according to one of claims 1 to 3,
characterized,
that reinforcing ribs (5) between the side surfaces and the associated retaining surfaces (6) are located. Abdeckung für explosionsgeschützte Leuchten nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass sich an den Seitenflächen Haltestifte (8) für Haubenhaltelaschen befinden.Cover for explosion-proof lights according to one of claims 1 to 4,
characterized,
that holding pins (8) for hood holding tabs are located on the side surfaces. Abdeckung für explosionsgeschützte Leuchten nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass sich Material und/oder Herstellungsangaben an den Seitenflächen befinden.Cover for explosion-proof lights according to one of claims 1 to 5,
characterized,
that material and / or manufacturing information are on the side surfaces. Abdeckung für explosionsgeschützte Leuchten nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass sich Warenzeichen und/oder Typangaben an den Stirnflächen befinden.Cover for explosion-proof lights according to one of claims 1 to 6,
characterized,
that trademarks and / or types are located on the faces.
EP05019606A 2004-09-13 2005-09-09 Transparent covers for explosion-proof luminaires Withdrawn EP1635111A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004044167A DE102004044167A1 (en) 2004-09-13 2004-09-13 Transparent covers for explosion-proof lights

Publications (2)

Publication Number Publication Date
EP1635111A2 true EP1635111A2 (en) 2006-03-15
EP1635111A3 EP1635111A3 (en) 2008-10-15

Family

ID=35159759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05019606A Withdrawn EP1635111A3 (en) 2004-09-13 2005-09-09 Transparent covers for explosion-proof luminaires

Country Status (2)

Country Link
EP (1) EP1635111A3 (en)
DE (1) DE102004044167A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012202427B4 (en) * 2012-02-16 2014-04-30 Herbert Waldmann Gmbh & Co Kg lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942995A1 (en) 1979-10-24 1981-05-07 Bayer Ag, 5090 Leverkusen Explosion-proof transparent light cover - has plastics strips combined with earthed wires connected to conductor along edges
DE4222897A1 (en) 1992-07-11 1994-01-13 Semperlux Gmbh Reflector-prism system for natural or artificial light for intended spatial zones - has one-piece combination of reflection, transmission and diffraction units made from transparent glass or plastics material

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173408A (en) * 1967-05-31 1969-12-10 Hagner Bo Anders V Directional Control Device for a Source of Light
US3760178A (en) * 1972-01-06 1973-09-18 Sunbeam Lighting Variable density diffuser for lighting fixtures
EP0054595A1 (en) * 1980-12-22 1982-06-30 S.A Clarel Watertight lighting fitting for tubular lamps
DE3909889A1 (en) * 1989-03-25 1990-09-27 Ceag Licht & Strom Strip light
DE29502183U1 (en) * 1995-02-10 1996-05-02 Zumtobel Licht Luminaire, especially damp room luminaire, with a two-part closed housing
DE19905217A1 (en) * 1999-02-09 2000-08-10 Mannesmann Vdo Ag Device for equalizing the illumination of a surface
EP1147337A1 (en) * 1999-11-18 2001-10-24 Koninklijke Philips Electronics N.V. Luminaire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942995A1 (en) 1979-10-24 1981-05-07 Bayer Ag, 5090 Leverkusen Explosion-proof transparent light cover - has plastics strips combined with earthed wires connected to conductor along edges
DE4222897A1 (en) 1992-07-11 1994-01-13 Semperlux Gmbh Reflector-prism system for natural or artificial light for intended spatial zones - has one-piece combination of reflection, transmission and diffraction units made from transparent glass or plastics material

Also Published As

Publication number Publication date
EP1635111A3 (en) 2008-10-15
DE102004044167A1 (en) 2006-04-06

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