EP2944869B1 - Led light - Google Patents

Led light Download PDF

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Publication number
EP2944869B1
EP2944869B1 EP15166360.6A EP15166360A EP2944869B1 EP 2944869 B1 EP2944869 B1 EP 2944869B1 EP 15166360 A EP15166360 A EP 15166360A EP 2944869 B1 EP2944869 B1 EP 2944869B1
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EP
European Patent Office
Prior art keywords
housing
luminaire
leds
luminaire according
projections
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
EP15166360.6A
Other languages
German (de)
French (fr)
Other versions
EP2944869A1 (en
Inventor
Peter Schröcker
Zaki Wimmer
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.)
Osram SBT GmbH
Original Assignee
Siteco Beleuchtungstechnik GmbH
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Publication date
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Publication of EP2944869A1 publication Critical patent/EP2944869A1/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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/013—Housings, e.g. material or assembling of housing parts the housing being an extrusion
    • 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
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F21V15/015—Devices for covering joints between adjacent lighting devices; End coverings
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a. Luminaire according to claim 1, in particular an interior or exterior luminaire for mounting on a wall or a ceiling, with light-emitting diodes (LEDs), which are to be understood as organic light-emitting diodes (OLEDs), as a lighting means.
  • LEDs light-emitting diodes
  • OLEDs organic light-emitting diodes
  • Luminaires of the type mentioned are, for example, in the DE 20 2008 007 211 U1 described.
  • the luminaire housing is formed from a U-shaped profile element whose light exit opening is closed by a light exit element.
  • the profile element has inwardly projecting frame elements for receiving a seal and the light exit element.
  • a similar LED lamp with an aluminum profile as housing is in the DE 20 2011 108 542 U1 described.
  • the LEDs are arranged with a board on the bottom of an approximately U-shaped housing profile. On the back of the housing opposite the LEDs, cooling fins are formed.
  • US 2013/083522 A1 discloses a luminaire with LEDs.
  • the luminaire includes a body of extruded aluminum profiles.
  • the body is provided on the front side with approximately T-shaped covers. LEDs are attached to sides of the extruded profiles.
  • EP 2 280 213 A2 discloses a lighting device having a plurality of LEDs.
  • a housing includes one or more floor panels and side walls that are substantially vertical to the floor panel (s). The LEDs are arranged on the bottom plate.
  • US 2012/033400 A1 discloses a dimmable LED light with an emergency ballast for car parking areas.
  • the luminaire includes a semi-concave shell, which has an inverted U-shape for receiving power sources and the emergency ballast. Furthermore, a cover fastened with clips is provided.
  • WO 2015/031322 A1 discloses a lighting device having a plurality of light sources and a plurality of lenses for influencing the light of the light sources.
  • the case is through Profile element formed, wherein means for power supply are arranged in a central recess of the profile element.
  • the object of the invention is to develop a luminaire of the type mentioned in terms of the specifics of LEDs as bulbs, in particular for the cooling of these.
  • a luminaire has a luminaire housing, which is formed from a longitudinally extending profile element, wherein the profile element is formed in a cross section perpendicular to the longitudinal extent of the housing approximately T-shaped, wherein the lateral projections the T-shape serve as support surfaces for the LEDs in each case on a side of the housing facing towards a light exit surface of the housing and a space is formed centrally between the projections, in which operating means are arranged on the side opposite the light exit surface.
  • the package shape according to the present invention has been optimized for the use of LEDs.
  • a T-shape was used.
  • the wide cantilevers of the T-shape provide a larger surface area to the outside as compared to a compact housing.
  • the LEDs are supported on the support surface of the projections so that they are also in good thermal contact with the enlarged outer surface portions.
  • the width of the projections can be between 15% and 40% of the total width of the luminaire.
  • the profile element is made of metal, in particular aluminum.
  • Metals, in particular aluminum have a high thermal conductivity, so that in the region of the projections the heat generated by the operation of the LEDs can be dissipated to the outside.
  • the housing profile can be formed, for example, as an extruded profile or by a die-cast element. It is also possible that only parts of the profile are made of metal, in particular those parts of the profile which are in contact with the LEDs, i. the projections, made of metal or aluminum are formed.
  • cooling fins may be integrated in the profile.
  • the cooling ribs are preferably arranged on the outside of the projections facing away from the light exit surface. This position of the cooling fins is preferred because it is on the one hand relatively close to the LEDs and on the other hand, in contrast to the bottom surface of the lamp, which is usually attached to a wall or ceiling, in the free air flow of the ambient air.
  • the projections are optionally arranged with the cooling fins mirror-symmetrical to the longitudinal center plane of the lamp (ie, a longitudinal cross section centrally through the lamp perpendicular to the light exit surface).
  • This shape provides the largest possible surface area for both housing sides serving as a support surface for the LED.
  • it would also be conceivable to make the T-shape of the housing somewhat asymmetrical for example, one projection can amount to 10% to 20% of the total width, while the other projection accounts for between 20% and 40% of the total width of the lamp).
  • the housing shape deviates somewhat in cross section from the symmetry of a T.
  • both protrusions form approximately the shape of a Ts in order to ensure the housing shape optimized according to the present invention for cooling the LEDs.
  • the LEDs are arranged on one or more boards.
  • the board (s) is / are mounted in thermal contact with the LED support surfaces.
  • the board can rest directly on the housing side of the projections, wherein, if necessary, provided with a circuit board with conductor tracks on both sides of an insulating layer to the housing profile formed of metal. It is also considered to provide a thermal grease between the boards and the housing to improve the thermal contact.
  • the LEDs may be limited to the area of the LED support surfaces, the sides of the projections.
  • the luminaire forms two separate luminous surfaces on both longitudinal sides of the luminaire.
  • the light can emit light over the entire width of the light exit surface.
  • the light exit side is closed with a transparent cover.
  • the cover can be clearly transparent.
  • a light-scattering e.g. a frosted disc or a pane occupied with prisms, to de-illuminate the lamp or to even out the light of the LEDs, which are visible as a bright point-shaped bulbs, over the light exit surface.
  • the transparent cover is sealed with a circumferential seal against the housing profile.
  • the seal may be used as a separate component, e.g. made of silicone or a foam, be inserted or may alternatively be glued to the housing or with the transparent cover.
  • the cover may, according to one embodiment, be held to the housing with clips which laterally grip over the projection to clamp the cover. This is a particularly simple way to secure the cover and also offers the advantage that, in contrast to gluing or the like. The cover can also be easily detached from the housing again.
  • the end faces of the housing are closed with side covers, preferably with an inserted or injected, e.g. foamed, seal against the housing profile to be sealed.
  • the side covers may e.g. screwed or attached.
  • the seal for the side covers directly against the seal for the transparent cover, so that the cover and the side covers close the housing completely sealed.
  • the seals may be designed in particular for moisture or splash-proof housing.
  • a gas-tight seal may also be provided to prevent the penetration of explosive gases into the luminaire housing.
  • the side covers may have cable glands on one or both sides of the luminaire.
  • the cable bushings may also be formed moisture and / or gas-tight. According to a preferred embodiment, cable penetrations are provided on both sides of the luminaire. As a result, several luminaires can be electrically supplied one behind the other with feedthrough cabling. As a single light, however, a cable bushing in only one of the two side cover is possible.
  • operating means for the luminaire are arranged in the receiving space of the luminaire.
  • ballasts for the LEDs can be provided in this receiving space.
  • Other electronic control devices are also possible.
  • further light sources in this area. For example, spotlights or warning lights can be arranged in this area, which can optionally also emit colored light and generate light in addition to the LEDs on the LED support surfaces of the projections.
  • the lamp in the illustrated embodiment has a lamp housing made of a profile element 2, which is formed in this example of an aluminum extruded profile.
  • the profile element 2 has a longitudinal extension and the cross section of the profile in the plane perpendicular to the longitudinal axis of the lamp remains constant over the length. This makes the profile particularly easy to produce.
  • the profile element 2 is formed of aluminum, so that a good thermal conductivity is given.
  • the profile element 2 has in cross section perpendicular to the lamp about a T-shape (see, eg FIGS. 4 and 5 ), wherein the T-shape in the central region defines an approximately rectangular box, which serves as a receiving space 4 for equipment 6 of the lamp.
  • a receiving space 4 for equipment 6 of the lamp For example, 4 protrusions may be provided on the profile element 2 in the interior of the receiving space to attach resources 6 thereto.
  • FIG. 2 are electrical equipment 6 shown in the receiving space 4, while in the other figures, the resources are not shown.
  • the T-shape of the profile element further has two projections 8, which are respectively formed on the side facing the light exit surface of the lamp as support surfaces 10 for LEDs (the LEDs are not shown in the figures).
  • the width of the projections 8 is in the illustrated example about 25% of the total width of the lamp housing. As a result, a larger surface is formed compared to a box-shaped housing, which is advantageous for cooling with the ambient air.
  • cooling fins 12 which extend in the longitudinal direction of the lamp.
  • the cooling fins are integrated in the profile element 2 and extend over the entire length of the luminaire, so that the profile element can be produced with a constant cross section.
  • the lamp On the opposite side of the LED support surfaces 10, the lamp is closed with a transparent cover 14.
  • the cover 14 is provided with a circumferential seal 16 (see FIG. 2 in exploded view) sealed in a groove on the outer edges of the projections 8.
  • the seal 16 also extends over the end faces of the lamp.
  • the seal 16 may, as in the example of FIG. 2 is shown, be loosely inserted. However, it is also conceivable to connect the seal firmly to the housing 2 and / or the cover 14.
  • brackets 18 which engage on the underside of the lamp on the projection 8 and on the top of the lamp on the transparent cover 14.
  • the clip elements are approximately U-shaped in cross section, wherein the two legs of the US can be elastically deflected against each other to apply the necessary clamping force to hold the cover 14 with the seal 16 on the projection 8.
  • the front side of the lamp with side covers 20 is closed.
  • the side covers 20 have a T-shaped surface corresponding to the cross-section of the profile to close the profile at the end faces.
  • Within the side cover 20 is in the illustrated embodiment (see in particular FIG. 2 ) provided a cutout which is closed with a further cover 22.
  • Within the cover 22, two cable bushings 24 are provided, to connect the electrical equipment 6 of the lamp electrically.
  • the cable glands can be provided on both ends of the lamp or, as in the FIG. 3 shown, only be present on one side of the lamp.
  • the side covers 20 are sealed with a seal 28 to the end faces of the profile element 4.
  • the groove on the longitudinal sides of the profiled element 2, in which the seal 16 is inserted, continues in the side covers 20, so that the seal 16 seals the luminaire housing over the entire circumference of the transparent cover 18.
  • the seal 28 of the side cover 20 adjoins the peripheral seal 16 in order to completely seal the housing.
  • bracket 26 are provided on the side covers 20 of the opposite side of the light exit surface side. These brackets 26 serve to mount the light on a wall or ceiling.
  • the lamp described above is particularly suitable for outdoor use.
  • a preferred application of this type of lights is a tunnel light.
  • Several luminaires are mounted one behind the other along the tunnel ceiling or the tunnel walls.
  • the energy-saving lamps in the form of LEDs are beneficial.
  • sufficient ventilation is given to this site in order to ensure the necessary cooling for the LEDs in conjunction with the inventively optimized housing shape.
  • Another preferred application of this type of luminaires is an indoor luminaire for illuminating large halls.
  • the shape of the housing need not be exactly symmetrical as long as a T-shape with two projections is formed. Further, the ratio between the width of the receiving space 4 to the width of the projections 8 may vary.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Die Erfindung betrifft eine. Leuchte gemäß Anspruch 1, insbesondere eine Innen- oder Außenleuchte zur Montage an einer Wand oder einer Decke, mit lichtemittierenden Dioden (LEDs), worunter auch organische lichtemittierende Dioden (OLEDs) zu verstehen sind, als Leuchtmittel.The invention relates to a. Luminaire according to claim 1, in particular an interior or exterior luminaire for mounting on a wall or a ceiling, with light-emitting diodes (LEDs), which are to be understood as organic light-emitting diodes (OLEDs), as a lighting means.

Leuchten der eingangs genannten Art sind z.B. in der DE 20 2008 007 211 U1 beschrieben. Das Leuchtengehäuse ist aus einem U-förmigen Profilelement gebildet, dessen Lichtaustrittsöffnung durch ein Lichtaustrittselement verschlossen ist. Das Profilelement weist nach innen ragende Rahmenelemente zur Aufnahme einer Dichtung und des Lichtaustrittselements auf. Eine ähnliche LED-Leuchte mit einem Aluminiumprofil als Gehäuse ist in der DE 20 2011 108 542 U1 beschrieben. Die LEDs sind mit einer Platine auf dem Boden eines etwa U-förmigen Gehäuseprofils angeordnet. Auf der den LEDs gegenüberliegenden Rückseite des Gehäuses sind Kühlrippen angeformt.Luminaires of the type mentioned are, for example, in the DE 20 2008 007 211 U1 described. The luminaire housing is formed from a U-shaped profile element whose light exit opening is closed by a light exit element. The profile element has inwardly projecting frame elements for receiving a seal and the light exit element. A similar LED lamp with an aluminum profile as housing is in the DE 20 2011 108 542 U1 described. The LEDs are arranged with a board on the bottom of an approximately U-shaped housing profile. On the back of the housing opposite the LEDs, cooling fins are formed.

US 2013/083522 A1 offenbart eine Leuchte mit LEDs. Die Leuchte umfasst einen Körper aus Aluminium-Strangpressprofilen. Der Körper ist stirnseitig mit etwa T-förmigen Abdeckungen versehen. LEDs sind an Seiten der Strangpressprofile angebracht. US 2013/083522 A1 discloses a luminaire with LEDs. The luminaire includes a body of extruded aluminum profiles. The body is provided on the front side with approximately T-shaped covers. LEDs are attached to sides of the extruded profiles.

EP 2 280 213 A2 offenbart eine Beleuchtungsvorrichtung, welche mehrere LEDs aufweist. Ein Gehäuse umfasst eine oder mehrere Bodenplatten und Seitenwände, die im Wesentlichen vertikal zu der oder den Bodenplatten angeordnet sind. Die LEDs sind an der Bodenplatte angeordnet. EP 2 280 213 A2 discloses a lighting device having a plurality of LEDs. A housing includes one or more floor panels and side walls that are substantially vertical to the floor panel (s). The LEDs are arranged on the bottom plate.

US 2012/033400 A1 offenbart eine dimmbare LED-Leuchte mit einem Notfallvorschaltgerät für Autoparkflächen. Die Leuchte umfasst eine halb-konkave Schale, die eine invertierte U-Form zur Aufnahme von Stromquellen und dem Notfallvorschaltgerät aufweist. Ferner ist eine mit Klammern befestigte Abdeckung vorgesehen. US 2012/033400 A1 discloses a dimmable LED light with an emergency ballast for car parking areas. The luminaire includes a semi-concave shell, which has an inverted U-shape for receiving power sources and the emergency ballast. Furthermore, a cover fastened with clips is provided.

WO 2015/031322 A1 offenbart eine Leuchteneinrichtung mit mehreren Lichtquellen und mehreren Linsen zum Beeinflussen des Lichts der Lichtquellen. Das Gehäuse ist durch ein Profilelement gebildet, wobei Einrichtungen zur Stromversorgung in einer mittigen Vertiefung des Profilelements angeordnet sind. WO 2015/031322 A1 discloses a lighting device having a plurality of light sources and a plurality of lenses for influencing the light of the light sources. The case is through Profile element formed, wherein means for power supply are arranged in a central recess of the profile element.

Aufgabe der Erfindung ist es, eine Leuchte der eingangs genannten Art im Hinblick auf die Besonderheiten von LEDs als Leuchtmitteln, insbesondere zur Kühlung von diesen, weiterzuentwickeln.The object of the invention is to develop a luminaire of the type mentioned in terms of the specifics of LEDs as bulbs, in particular for the cooling of these.

Gelöst wird die Aufgabe durch eine Leuchte gemäß Anspruch 1, wobei die Leuchte ein Leuchtengehäuse aufweist, welches aus einem sich längs erstreckenden Profilelement gebildet ist, wobei das Profilelement in einem Querschnitt senkrecht zur Längserstreckung des Gehäuses etwa T-förmig gebildet ist, wobei die seitlichen Auskragungen der T-Form jeweils auf einer zu einer Lichtaustrittsfläche der Leuchte weisenden Seite des Gehäuses als Trägerflächen für die LEDs dienen und mittig zwischen den Auskragungen ein Raum gebildet ist, in welchem Betriebsmittel auf der der Lichtaustrittsfläche gegenüberliegenden Seite angeordnet sind.The object is achieved by a luminaire according to claim 1, wherein the luminaire has a luminaire housing, which is formed from a longitudinally extending profile element, wherein the profile element is formed in a cross section perpendicular to the longitudinal extent of the housing approximately T-shaped, wherein the lateral projections the T-shape serve as support surfaces for the LEDs in each case on a side of the housing facing towards a light exit surface of the housing and a space is formed centrally between the projections, in which operating means are arranged on the side opposite the light exit surface.

Die Gehäuseform gemäß der vorliegenden Erfindung wurde für den Einsatz von LEDs optimiert. Im Unterschied zu den kastenförmigen oder U-förmigen Profilen wurde eine T-Form angewandt. Durch die breiten Auskragungen der T-Form wird im Vergleich zu einem kompakten Gehäuse eine größere Oberfläche nach außen bereitgestellt. Vorteilhaft ist dabei insbesondere, dass die LEDs auf der Trägerfläche der Auskragungen getragen werden, so dass sie auch in gutem thermischen Kontakt zu den vergrößerten Außenoberflächenabschnitten stehen. Die Breite der Auskragungen können in der jeweils zwischen 15% und 40% der gesamten Breite der Leuchte betragen.The package shape according to the present invention has been optimized for the use of LEDs. In contrast to the box-shaped or U-shaped profiles, a T-shape was used. The wide cantilevers of the T-shape provide a larger surface area to the outside as compared to a compact housing. In particular, it is advantageous that the LEDs are supported on the support surface of the projections so that they are also in good thermal contact with the enlarged outer surface portions. The width of the projections can be between 15% and 40% of the total width of the luminaire.

Gemäß einer bevorzugen Ausführungsform ist das Profilelement aus Metall, insbesondere aus Aluminium gebildet. Metalle, insbesondere Aluminium, weisen eine hohe Wärmeleitfähigkeit auf, so dass im Bereich der Auskragungen die durch den Betrieb der LEDs erzeugte Wärme nach außen abgeleitet werden kann. Das Gehäuseprofil kann beispielsweise als Strangpressprofil oder durch ein Druckgusselement gebildet werden. Es ist auch möglich, dass nur Teile des Profils aus Metall gebildet sind, wobei insbesondere die Teile des Profils, die mit den LEDs in Kontakt stehen, d.h. die Auskragungen, aus Metall bzw. Aluminium gebildet sind.According to a preferred embodiment, the profile element is made of metal, in particular aluminum. Metals, in particular aluminum, have a high thermal conductivity, so that in the region of the projections the heat generated by the operation of the LEDs can be dissipated to the outside. The housing profile can be formed, for example, as an extruded profile or by a die-cast element. It is also possible that only parts of the profile are made of metal, in particular those parts of the profile which are in contact with the LEDs, i. the projections, made of metal or aluminum are formed.

Gemäß einer bevorzugten Ausführungsform können zur Vergrößerung der Außenfläche des Gehäuses, die als Kühlflächen wirken, Kühlrippen in dem Profil integriert sein. Bevorzugt sind die Kühlrippen auf den der Lichtaustrittsfläche abgewandten Außenseite der Auskragungen angeordnet. Diese Position der Kühlrippen ist bevorzugt, weil sie sich einerseits verhältnismäßig nahe an den LEDs befindet und andererseits, im Unterschied zu der Bodenfläche der Leuchte, die üblicherweise an einer Wand oder der Decke befestigt wird, im freien Luftstrom der Umgebungsluft befindet.According to a preferred embodiment, to increase the outer surface of the housing, which act as cooling surfaces, cooling fins may be integrated in the profile. The cooling ribs are preferably arranged on the outside of the projections facing away from the light exit surface. This position of the cooling fins is preferred because it is on the one hand relatively close to the LEDs and on the other hand, in contrast to the bottom surface of the lamp, which is usually attached to a wall or ceiling, in the free air flow of the ambient air.

Gemäß einer bevorzugten Ausführungsform sind die Auskragungen ggf. mit den Kühlrippen spiegelsymmetrisch zur Längsmittelebene der Leuchte (d.h. einem Längsquerschnitt mittig durch die Leuchte senkrecht zur Lichtaustrittsfläche) angeordnet. Diese Form stellt die größtmögliche Oberfläche für beide als Trägerfläche für die LED dienenden Gehäuseseiten bereit. Für besondere Anwendungen wäre es auch denkbar, die T-Form des Gehäuses etwas asymmetrisch auszubilden (z.B. kann eine Auskragung 10% bis 20% der Gesamtbreite betragen, während die andere Auskragung zwischen 20% und 40% der Gesamtbreite der Leuchte ausmacht). In diesem Fall weicht die Gehäuseform im Querschnitt etwas von der Symmetrie eines T ab. Beide Auskragungen bilden aber insgesamt noch etwa die Form eines Ts, um die für die Kühlung der LEDs optimierte Gehäuseform gemäß der vorliegenden Erfindung zu gewährleisten.According to a preferred embodiment, the projections are optionally arranged with the cooling fins mirror-symmetrical to the longitudinal center plane of the lamp (ie, a longitudinal cross section centrally through the lamp perpendicular to the light exit surface). This shape provides the largest possible surface area for both housing sides serving as a support surface for the LED. For particular applications, it would also be conceivable to make the T-shape of the housing somewhat asymmetrical (for example, one projection can amount to 10% to 20% of the total width, while the other projection accounts for between 20% and 40% of the total width of the lamp). In this case, the housing shape deviates somewhat in cross section from the symmetry of a T. Overall, however, both protrusions form approximately the shape of a Ts in order to ensure the housing shape optimized according to the present invention for cooling the LEDs.

In einer Ausführungsform sind die LEDs auf einer oder mehreren Platinen angeordnet. Die Platine(n) wird/werden in thermischem Kontakt zu den LED-Trägerflächen montiert. Beispielsweise kann die Platine direkt auf der Gehäuseseite der Auskragungen aufliegen, wobei ggf. bei einer Platine mit Leiterbahnen auf beiden Seiten eine Isolierschicht zu dem aus Metall gebildeten Gehäuseprofil vorgesehen ist. Es ist auch berücksichtigt, eine Wärmeleitpaste zwischen den Platinen und dem Gehäuse vorzusehen, um den thermischen Kontakt zu verbessern.In one embodiment, the LEDs are arranged on one or more boards. The board (s) is / are mounted in thermal contact with the LED support surfaces. For example, the board can rest directly on the housing side of the projections, wherein, if necessary, provided with a circuit board with conductor tracks on both sides of an insulating layer to the housing profile formed of metal. It is also considered to provide a thermal grease between the boards and the housing to improve the thermal contact.

Die LEDs können auf den Bereich der LED-Trägerflächen die Seiten der Auskragungen begrenzt sein. In diesem Fall bildet die Leuchte zwei voneinander getrennte leuchtende Flächen an beiden Längsseiten der Leuchte. Es ist jedoch auch möglich, den Bereich des Aufnahmeraums zwischen den Auskragungen ebenfalls mit einer oder mehreren LED-Platinen zu überbrücken. In diesem Fall kann die Leuchte über die gesamte Breite der Lichtaustrittsfläche Licht abstrahlen. In dieser Ausführungsform ist es bevorzugt, den Aufnahmeraum so schmal wie möglich (z.B. zwischen 15% und 30% der Gesamtbreite der Leuchte) auszubilden, um die Kühlung der LEDs auch im Bereich über dem Aufnahmeraum zu gewährleisten.The LEDs may be limited to the area of the LED support surfaces, the sides of the projections. In this case, the luminaire forms two separate luminous surfaces on both longitudinal sides of the luminaire. However, it is also possible to bridge the area of the receiving space between the projections also with one or more LED boards. In this case, the light can emit light over the entire width of the light exit surface. In this embodiment, it is preferable to make the receiving space as narrow as possible (e.g., between 15% and 30% of the total width of the light) to ensure cooling of the LEDs also in the area above the receiving space.

Gemäß einer Ausführungsform der Erfindung ist die Lichtaustrittsseite mit einer transparenten Abdeckung verschlossen. Die Abdeckung kann klar transparent sein. Bevorzugt ist jedoch eine lichtstreuende, z.B. eine mattierte Scheibe oder eine mit Prismen besetzte Scheibe, vorzusehen, um die Leuchte zu entblenden bzw. das Licht der LEDs, die als helle punktförmige Leuchtmittel sichtbar sind, nach außen über die Lichtaustrittsfläche zu vergleichmäßigen.According to one embodiment of the invention, the light exit side is closed with a transparent cover. The cover can be clearly transparent. However, preferably a light-scattering, e.g. a frosted disc or a pane occupied with prisms, to de-illuminate the lamp or to even out the light of the LEDs, which are visible as a bright point-shaped bulbs, over the light exit surface.

Vorzugsweise ist die transparente Abdeckung mit einer umlaufenden Dichtung gegen das Gehäuseprofil abgedichtet. Die Dichtung kann als separates Bauelement, z.B. aus Silikon oder einem Schaumstoff, eingelegt sein oder kann alternativ mit dem Gehäuse oder mit der transparenten Abdeckung verklebt sein.Preferably, the transparent cover is sealed with a circumferential seal against the housing profile. The seal may be used as a separate component, e.g. made of silicone or a foam, be inserted or may alternatively be glued to the housing or with the transparent cover.

Die Abdeckscheibe kann gemäß einer Ausführungsform mit Klammern an dem Gehäuse gehalten werden, die seitlich über die Auskragung greifen, um die Abdeckung festzuklemmen. Dies ist eine besonders einfache Art die Abdeckscheibe zu befestigen und bietet darüber hinaus den Vorteil, dass im Unterschied zu Verklebungen oder dgl. die Abdeckscheibe auch leicht von dem Gehäuse wieder gelöst werden kann.The cover may, according to one embodiment, be held to the housing with clips which laterally grip over the projection to clamp the cover. This is a particularly simple way to secure the cover and also offers the advantage that, in contrast to gluing or the like. The cover can also be easily detached from the housing again.

Im Unterschied zu kastenförmigen Gehäusen brauchen zum Aufstecken der Klammern keine separaten Vorsprünge am Gehäuse vorgesehen zu werden, weil die beiden Auskragungen der T-Form bereits dazu geeignet sind, um einfache U-förmige Halteklammern von außen aufzustecken.In contrast to box-shaped housings need to be provided for attaching the brackets no separate projections on the housing, because the two projections of the T-shape are already suitable to aufzustecken simple U-shaped retaining clips from the outside.

Gemäß einer bevorzugten Ausführungsform werden die Stirnseiten des Gehäuses mit Seitendeckeln verschlossen, die vorzugsweise mit einer eingelegten oder eingespritzten, z.B. eingeschäumten, Dichtung gegen das Gehäuseprofil abgedichtet werden. Die Seitendeckel können z.B. angeschraubt oder aufgesteckt werden. Vorzugsweise liegt die Dichtung für die Seitendeckel direkt an der Dichtung für die transparente Abdeckung an, so dass die Abdeckung und die Seitendeckel das Gehäuse vollständig abgedichtet verschließen.According to a preferred embodiment, the end faces of the housing are closed with side covers, preferably with an inserted or injected, e.g. foamed, seal against the housing profile to be sealed. The side covers may e.g. screwed or attached. Preferably, the seal for the side covers directly against the seal for the transparent cover, so that the cover and the side covers close the housing completely sealed.

Die Dichtungen können insbesondere für feuchtigkeits- oder spritzwassergeschützte Gehäuse ausgebildet sein. Für besondere Anwendungen der Leuchte in explosionsgefährdeten Räumen kann auch eine gasdichte Abdichtung vorgesehen sein, um das Eindringen von explosiven Gasen in das Leuchtengehäuse zu verhindern.The seals may be designed in particular for moisture or splash-proof housing. For special applications of the luminaire in potentially explosive atmospheres, a gas-tight seal may also be provided to prevent the penetration of explosive gases into the luminaire housing.

Die Seitendeckel können auf einer oder auf beiden Seiten der Leuchte Kabeldurchführungen aufweisen. Die Kabeldurchführungen können ebenfalls feuchtigkeits- und/oder gasdicht ausgebildet sein. Gemäß einer bevorzugten Ausführungsform sind an beiden Seiten der Leuchte Kabeldurchführungen vorgesehen. Dadurch lassen sich mehrere Leuchten hintereinander mit einer Durchführungsverkabelung elektrisch versorgen. Als Einzelleuchte ist jedoch auch eine Kabeldurchführung in nur einem der beiden Seitendeckel möglich.The side covers may have cable glands on one or both sides of the luminaire. The cable bushings may also be formed moisture and / or gas-tight. According to a preferred embodiment, cable penetrations are provided on both sides of the luminaire. As a result, several luminaires can be electrically supplied one behind the other with feedthrough cabling. As a single light, however, a cable bushing in only one of the two side cover is possible.

In dem Aufnahmeraum der Leuchte, der durch den mittleren Bereich des T-förmigen Querschnitts auf der der Lichtaustrittsfläche gegenüberliegenden Seite des Gehäuses gebildet ist, sind Betriebsmittel für die Leuchte angeordnet. Insbesondere können in diesem Aufnahmeraum Vorschaltgeräte für die LEDs vorgesehen sein. Andere elektronische Steuergeräte sind ebenfalls möglich. Es ist auch denkbar, weitere Lichtquellen in diesem Bereich anzuordnen. Beispielsweise können Strahler oder Warnleuchten in diesem Bereich angeordnet sein, die ggf. auch farbiges Licht abgeben können und in Ergänzung zu den LEDs an den LED-Trägerflächen der Auskragungen Licht erzeugen.In the receiving space of the luminaire, which is formed by the central region of the T-shaped cross section on the side opposite the light exit surface side of the housing, operating means for the luminaire are arranged. In particular, ballasts for the LEDs can be provided in this receiving space. Other electronic control devices are also possible. It is also conceivable to arrange further light sources in this area. For example, spotlights or warning lights can be arranged in this area, which can optionally also emit colored light and generate light in addition to the LEDs on the LED support surfaces of the projections.

Nachfolgend wird eine bevorzugte Ausführungsform einer erfindungsgemäßen Leuchte in Verbindung mit den beigefügten Zeichnungen beschrieben. In den Zeichnungen ist Folgendes dargestellt:

Figur 1
zeigt eine Ausführungsform der Leuchte in perspektivischer Darstellung, wobei die Lichtaustrittsseite nach oben weist.
Figur 2
zeigt einen stirnseitigen Abschnitt der Leuchte nach Figur 1 in einer Explosionsdarstellung.
Figur 3
zeigt die Leuchte nach Figur 1 in einer Seitenansicht.
Figuren 4 und 5
zeigen die Leuchte in Querschnittausichten entlang der Linie R-R bzw. T-T der Figur 3.
Hereinafter, a preferred embodiment of a lamp according to the invention will be described in conjunction with the accompanying drawings. The drawings show the following:
FIG. 1
shows an embodiment of the lamp in a perspective view, wherein the light exit side faces upward.
FIG. 2
shows a frontal section of the light after FIG. 1 in an exploded view.
FIG. 3
shows the light after FIG. 1 in a side view.
FIGS. 4 and 5
show the luminaire in cross-sectional views along the line RR or TT of the FIG. 3 ,

Die Leuchte in der dargestellten Ausführungsform weist ein Leuchtengehäuse aus einem Profilelement 2 auf, welches in diesem Beispiel aus einem Aluminiumstrangpressprofil gebildet ist. Das Profilelement 2 weist eine Längserstreckung auf und der Querschnitt des Profils in der Ebene senkrecht zur Längsachse der Leuchte bleibt über die Länge konstant. Dadurch lässt sich das Profil besonders einfach herstellen.The lamp in the illustrated embodiment has a lamp housing made of a profile element 2, which is formed in this example of an aluminum extruded profile. The profile element 2 has a longitudinal extension and the cross section of the profile in the plane perpendicular to the longitudinal axis of the lamp remains constant over the length. This makes the profile particularly easy to produce.

Das Profilelement 2 ist aus Aluminium gebildet, so dass eine gute Wärmeleitfähigkeit gegeben ist.The profile element 2 is formed of aluminum, so that a good thermal conductivity is given.

Das Profilelement 2 weist im Querschnitt senkrecht zu der Leuchte etwa eine T-Form auf (siehe z.B. Figuren 4 und 5), wobei die T-Form im mittleren Bereich einen etwa rechteckigen Kasten definiert, der als Aufnahmeraum 4 für Betriebsmittel 6 der Leuchte dient. Beispielsweise können im Inneren des Aufnahmeraums 4 Vorsprünge an dem Profilelement 2 vorgesehen sein, um Betriebsmittel 6 daran zu befestigen. In Figur 2 sind elektrische Betriebsmittel 6 im Aufnahmeraum 4 dargestellt, während in den übrigen Figuren die Betriebsmittel nicht dargestellt sind.The profile element 2 has in cross section perpendicular to the lamp about a T-shape (see, eg FIGS. 4 and 5 ), wherein the T-shape in the central region defines an approximately rectangular box, which serves as a receiving space 4 for equipment 6 of the lamp. For example, 4 protrusions may be provided on the profile element 2 in the interior of the receiving space to attach resources 6 thereto. In FIG. 2 are electrical equipment 6 shown in the receiving space 4, while in the other figures, the resources are not shown.

Die T-Form des Profilelements weist ferner zwei Auskragungen 8 auf, die jeweils auf der zur Lichtaustrittsfläche der Leuchte weisenden Seite als Trägerflächen 10 für LEDs ausgebildet sind (die LEDs sind in den Figuren nicht dargestellt).The T-shape of the profile element further has two projections 8, which are respectively formed on the side facing the light exit surface of the lamp as support surfaces 10 for LEDs (the LEDs are not shown in the figures).

Die Breite der Auskragungen 8 beträgt in dem dargestellten Beispiel etwa jeweils 25% der Gesamtbreite des Leuchtengehäuses. Dadurch wird im Vergleich zu einem kastenförmigen Gehäuse eine größere Oberfläche gebildet, die zur Kühlung mit der Umgebungsluft von Vorteil ist.The width of the projections 8 is in the illustrated example about 25% of the total width of the lamp housing. As a result, a larger surface is formed compared to a box-shaped housing, which is advantageous for cooling with the ambient air.

Ergänzend sind auf der den LED-Trägerflächen 10 gegenüberliegenden Außenseiten Kühlrippen 12 vorgesehen, die sich in Längsrichtung der Leuchte erstrecken. Die Kühlrippen sind in dem Profilelement 2 integriert und verlaufen über die gesamte Länge der Leuchte, so dass das Profilelement mit gleichbleibendem Querschnitt hergestellt werden kann.In addition, on the LED support surfaces 10 opposite outer sides of cooling fins 12 are provided which extend in the longitudinal direction of the lamp. The cooling fins are integrated in the profile element 2 and extend over the entire length of the luminaire, so that the profile element can be produced with a constant cross section.

Auf der den LED-Trägerflächen 10 gegenüberliegenden Seite ist die Leuchte mit einer transparenten Abdeckung 14 verschlossen. Die Abdeckung 14 wird mit einer umlaufenden Dichtung 16 (siehe Figur 2 in Explosionsdarstellung) in einer Nut an den äußeren Rändern der Auskragungen 8 abgedichtet. Die Dichtung 16 erstreckt sich auch über die Stirnseiten der Leuchte. Die Dichtung 16 kann wie in dem Beispiel der Figur 2 dargestellt ist, lose eingelegt sein. Es ist jedoch auch denkbar, die Dichtung fest mit dem Gehäuse 2 und/oder der Abdeckung 14 zu verbinden.On the opposite side of the LED support surfaces 10, the lamp is closed with a transparent cover 14. The cover 14 is provided with a circumferential seal 16 (see FIG. 2 in exploded view) sealed in a groove on the outer edges of the projections 8. The seal 16 also extends over the end faces of the lamp. The seal 16 may, as in the example of FIG. 2 is shown, be loosely inserted. However, it is also conceivable to connect the seal firmly to the housing 2 and / or the cover 14.

Zur Festlegung der Abdeckung 14 am Gehäuse 2 sind Klammern 18 vorgesehen, die auf der Unterseite der Leuchte über die Auskragung 8 und auf der Oberseite der Leuchte über die transparente Abdeckung 14 greifen. Die Klammerelemente sind im Querschnitt etwa U-förmig ausgebildet, wobei die beiden Schenkel des Us elastisch gegeneinander ausgelenkt werden können, um die notwendige Spannkraft aufzubringen, um die Abdeckung 14 mit der Dichtung 16 an der Auskragung 8 zu halten.To fix the cover 14 on the housing 2 brackets 18 are provided which engage on the underside of the lamp on the projection 8 and on the top of the lamp on the transparent cover 14. The clip elements are approximately U-shaped in cross section, wherein the two legs of the US can be elastically deflected against each other to apply the necessary clamping force to hold the cover 14 with the seal 16 on the projection 8.

Stirnseitig ist die Leuchte mit Seitendeckeln 20 geschlossen. Die Seitendeckel 20 weisen eine T-förmige Fläche auf, die dem Querschnitt des Profils entspricht, um das Profil an den Stirnseiten zu schließen. Innerhalb des Seitendeckels 20 ist in der dargestellten Ausführungsform (siehe insbesondere Figur 2) ein Ausschnitt vorgesehen, der mit einem weiteren Deckel 22 verschlossen wird. Innerhalb des Deckels 22 sind zwei Kabeldurchführungen 24 vorgesehen, um die elektrischen Betriebsmittel 6 der Leuchte elektrisch anschließen zu können. Die Kabeldurchführungen können auf beiden Stirnseiten der Leuchte vorgesehen sein oder, wie in der Figur 3 dargestellt, nur auf einer Seite der Leuchte vorhanden sein.The front side of the lamp with side covers 20 is closed. The side covers 20 have a T-shaped surface corresponding to the cross-section of the profile to close the profile at the end faces. Within the side cover 20 is in the illustrated embodiment (see in particular FIG. 2 ) provided a cutout which is closed with a further cover 22. Within the cover 22, two cable bushings 24 are provided, to connect the electrical equipment 6 of the lamp electrically. The cable glands can be provided on both ends of the lamp or, as in the FIG. 3 shown, only be present on one side of the lamp.

Die Seitendeckel 20 werden mit einer Dichtung 28 zu den Stirnseiten des Profilelements 4 abgedichtet. Die Nut an den Längsseiten des Profilelements 2, in welchem die Dichtung 16 eingelegt ist, setzt sich in den Seitendeckeln 20 fort, so dass die Dichtung 16 das Leuchtengehäuse über den gesamten Umfang die transparente Abdeckung 18 abdichtet. Dabei grenzt die Dichtung 28 der Seitendeckel 20 an die umlaufende Dichtung 16 an, um das Gehäuse vollständig abzudichten.The side covers 20 are sealed with a seal 28 to the end faces of the profile element 4. The groove on the longitudinal sides of the profiled element 2, in which the seal 16 is inserted, continues in the side covers 20, so that the seal 16 seals the luminaire housing over the entire circumference of the transparent cover 18. In this case, the seal 28 of the side cover 20 adjoins the peripheral seal 16 in order to completely seal the housing.

Ferner sind an den Seitendeckeln 20 der auf der Lichtaustrittsfläche gegenüberliegenden Seite Haltewinkel 26 vorgesehen. Diese Haltewinkel 26 dienen dazu, die Leuchte an einer Wand oder Decke zu montieren.Further, bracket 26 are provided on the side covers 20 of the opposite side of the light exit surface side. These brackets 26 serve to mount the light on a wall or ceiling.

Die vorhergehend beschriebene Leuchte eignet sich insbesondere für den Einsatz im Außenbereich. Eine bevorzugte Anwendung dieser Art von Leuchten ist eine Tunnelleuchte. Dabei werden mehrere Leuchten hintereinander entlang der Tunneldecke oder den Tunnelwänden montiert. Für diese Art der Beleuchtung sind die stromsparenden Leuchtmittel in Form von LEDs von Vorteil. Außerdem ist an diesen Einsatzort eine ausreichende Belüftung gegeben, um in Verbindung mit der erfindungsgemäß optimierten Gehäuseform die notwendige Kühlung für die LEDs zu gewährleisten. Eine weitere bevorzugte Anwendung dieser Art von Leuchten ist eine Hallenflächenleuchte zur Beleuchtung großer Hallen.The lamp described above is particularly suitable for outdoor use. A preferred application of this type of lights is a tunnel light. Several luminaires are mounted one behind the other along the tunnel ceiling or the tunnel walls. For this type of lighting, the energy-saving lamps in the form of LEDs are beneficial. In addition, sufficient ventilation is given to this site in order to ensure the necessary cooling for the LEDs in conjunction with the inventively optimized housing shape. Another preferred application of this type of luminaires is an indoor luminaire for illuminating large halls.

Zahlreiche Abwandlungen der vorhergehend beschriebenen bevorzugten Ausführungsform sind im Rahmen der Erfindung, die durch die nachfolgenden Ansprüche definiert ist, möglich. Insbesondere muss die Form des Gehäuses nicht exakt symmetrisch sein, solange eine T-Form mit zwei Auskragungen gebildet ist. Ferner kann das Verhältnis zwischen der Breite des Aufnahmeraums 4 zu der Breite der Auskragungen 8 variieren.Numerous modifications of the preferred embodiment described above are possible within the scope of the invention, which is defined by the following claims. In particular, the shape of the housing need not be exactly symmetrical as long as a T-shape with two projections is formed. Further, the ratio between the width of the receiving space 4 to the width of the projections 8 may vary.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

22
Profilelementprofile element
44
Aufnahmeraumaccommodation space
66
Betriebsmittelresources
88th
Auskragungprojection
1010
LED-TrägerflächeLED support surface
1212
Kühlrippencooling fins
1414
Transparente AbdeckungTransparent cover
1616
Dichtungpoetry
1818
Klammerclip
2020
Seitendeckelside cover
2222
Deckel im SeitendeckelLid in the side cover
2424
KabeldurchführungGrommet
2626
Haltemittel in Form von HaltewinkelHolding means in the form of bracket
2828
Dichtung für SeitendeckelSeal for side cover

Claims (12)

  1. Luminaire with LEDs as illuminant, the luminaire having a luminaire housing which is formed from a longitudinally extending profile element (2), the profile element (2) being approximately T-shaped in a cross-section perpendicular to the longitudinal extent of the housing, the lateral projections (8) of the T-shape each serving as carrier surfaces (10) for the LEDs on a side of the housing facing a light-emitting surface of the luminaire, characterized in that a space (4) is formed centrally between the projections (8) in which operating means (6) are arranged on the side opposite the light-emitting surface.
  2. Luminaire according to claim 1, wherein the profile element (2) is formed from metal, in particular from aluminum, as an extruded profile or as a die-cast element.
  3. Luminaire according to claim 1 or 2, cooling fins (12) being integrated on the profile element (2) at the projections (8) on the outside facing away from the light emitting side.
  4. Luminaire according to one of the preceding claims, wherein the two projections (8), optionally with reference to claim 3 with the cooling fins (12), are constructed mirror-symmetrically to the longitudinal center plane.
  5. Luminaire according to one of the preceding claims, the LEDs being arranged on at least one circuit board which is mounted on the LED carrier surfaces (10) in thermal contact therewith.
  6. Luminaire according to one of the preceding claims, wherein the LEDs are limited to the region of the projections (8) or wherein the receiving space (4) between the projections (8) is at least partially bridged by an LED circuit board.
  7. Luminaire according to one of the preceding claims, the light-emitting side of the housing being closed with a transparent cover (14) which is preferably sealed with a circumferential seal (16) with respect to the housing.
  8. Luminaire according to claim 7, wherein the transparent cover (14) is clamped with clamps (18) which laterally embrace the cantilever.
  9. Luminaire according to one of the preceding claims, the end faces of the profile element (2) of the housing being closed by side covers (20) and preferably being sealed against the housing profile (2) by an inserted seal (28).
  10. Luminaire according to claim 9, one of the two or both of the side covers (20) having cable bushings.
  11. Luminaire according to Claim 9 or 10, wherein retaining means (26), in particular retaining brackets, are provided on the side covers for fastening the luminaire to a wall or ceiling.
  12. Luminaire according to one of the preceding claims, the operating means (6) comprising a ballast for operating the LEDs.
EP15166360.6A 2014-05-12 2015-05-05 Led light Active EP2944869B1 (en)

Applications Claiming Priority (1)

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Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
DE202008007211U1 (en) 2008-05-29 2009-10-08 Ledon Lighting Gmbh Luminaire housing, in particular for an LED luminaire, with sealing element
EP3045798B1 (en) * 2009-07-28 2017-10-04 LG Innotek Co., Ltd. Lighting device
MX2010008576A (en) * 2010-08-04 2012-02-20 Servicios Condumex Sa Dimmable high intensity leds luminaire with emergency ballast for parking areas.
DE202011108542U1 (en) 2010-08-25 2012-05-30 "Steinberg" Leuchtmittelwerke Gmbh Luminaire, in particular wall and / or ceiling light
US20130083522A1 (en) * 2011-10-03 2013-04-04 Mark Turner Bowers Light Fixture Using Light Emitting Diodes
AU2014311369A1 (en) * 2013-08-26 2016-04-21 Delta T, Llc Tunable luminaire and related methods to control light output

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