EP2920513B1 - Lighting fixture and method for producing a lighting fixture - Google Patents

Lighting fixture and method for producing a lighting fixture Download PDF

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Publication number
EP2920513B1
EP2920513B1 EP13750704.2A EP13750704A EP2920513B1 EP 2920513 B1 EP2920513 B1 EP 2920513B1 EP 13750704 A EP13750704 A EP 13750704A EP 2920513 B1 EP2920513 B1 EP 2920513B1
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EP
European Patent Office
Prior art keywords
extruded profile
light outlet
end cap
lighting fixture
longitudinal side
Prior art date
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Application number
EP13750704.2A
Other languages
German (de)
French (fr)
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EP2920513A1 (en
Inventor
Fabian Reingruber
Timo Dilger
Bernhard Kleemann
Christian Kopf
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 GmbH
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Osram GmbH
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Publication date
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Publication of EP2920513A1 publication Critical patent/EP2920513A1/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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
    • 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 lamp body according to the preamble of patent claim 1 and a method for producing a lamp body.
  • the object of the present invention is therefore to provide a lamp body which can be produced in a cost-effective manner and does not have the optical impression reducing joints, as well as to provide a cost-effective method for producing such a lamp body.
  • the luminaire body according to the invention comprises an extruded profile element with a first longitudinal extension in a longitudinal direction, wherein the extruded profile element has a light exit element with at least one light exit opening arranged therein.
  • the light exit element thereby limits the luminaire body at least partially in a light exit direction.
  • the extruded profile element comprises two longitudinal side elements arranged opposite one another at least partially along the longitudinal extension direction and arranged opposite the light exit direction on the light exit element, with a second longitudinal extent in the longitudinal direction of extension. These longitudinal side elements delimit the luminaire body along the longitudinal extension direction at least partially laterally, wherein the extruded profile element has at least one open extruded profile end which delimits the extruded profile element in its first longitudinal extent.
  • the luminaire body comprises at least one end cap, which can be arranged on the at least one open extruded profile end of the extruded profile element.
  • the longitudinal side elements each have at least one longitudinal side element end which delimits the respective longitudinal side element in its second longitudinal extent, the longitudinal side elements being arranged on the light exit element such that the longitudinal side element ends each have a spacing from the extruded profile end so that the end cap can be arranged in contact with the longitudinal side element ends and the light exit element is.
  • parting lines in particular between the end cap and the extruded profile element, are not in the field of view of a user, which is usually provided in direct light through the light exit element in the light exit direction of a lamp body.
  • This also has the advantage that the lamp body can be manufactured very easily and inexpensively as extruded profile by extrusion and to cover the open extruded profile ends separate end caps can be used without having to take optically disturbing joints in purchasing. Because of the inventive design of the extruded profile element and thereby provided arrangement possibility of the end cap, it is only possible that the contact areas between the end cap and the extruded profile element are not in the field of view of a user.
  • the underside of the lamp body is thus formed solely by the light exit element of the extruded profile element.
  • the light exit element in the light exit direction is referred to as the underside, without being understood thereby is to be that the light exit element must be arranged "down".
  • the light fixture can not only be used for ceiling lights, but can for example be arranged on a wall or in another positioning, so that the bottom of the lamp body is not necessarily down in a spatial arrangement.
  • the end cap, in particular the underside thereof can therefore be arranged at the open ends of the extruded profile element such that it is located above the light outlet element, and thus no air gap or parting line from which unwanted light can escape from below can be seen from below.
  • the visible lower outer surface of the lamp body can be realized as a continuous unit.
  • the light exit opening of the light exit element of the extruded profile element can be introduced, for example, by a milling process in the light exit element.
  • the ends of the extruded profile element can be edited so that the end caps are not visible on the lower viewing surface.
  • the extruded profile end and at least part of the end cap arranged at the open extruded end end form an end face of the luminaire body.
  • Processing marks such as milling edges on the extruded profile end, if present, can be laminated by a coating, in particular powder. So it can be made possible that at the light exit side no joints are present, which reduce the visual impression, and that at the same time provides the front side of the lamp body, if it is in a field of view of a user, a closed and uniform appearance.
  • the respective distance of the longitudinal side element ends to the extruded profile end is at least as large as a thickness of the end cap in a respective contact region in which the end cap is contactable with the respective longitudinal side element ends, wherein the thickness of the end cap is a dimension in the longitudinal direction of the extruded profile element when placing the end cap on the at least one open extruded profile end.
  • the extruded profile element and the at least one end cap are designed such that the end cap can be arranged in a form-fitting manner on the at least one open extruded profile end, which allows a particularly uniform appearance of the luminaire body.
  • the at least one end cap can have at least one coupling element by means of which the end cap can be fastened to the extruded profile element.
  • This coupling element can be designed so that it can be pressed into the extruded profile element.
  • a plurality of coupling elements may be provided, so that they are arranged on the end cap, that this example, when placing the end cap on an open Extruded profile against the inner surfaces of the longitudinal side elements are pressed, so that the attachment is accomplished by the frictional press connection.
  • the end cap and / or only the coupling elements may be, for example, from an at least partially elastic material.
  • the coupling elements as a screw connection, in particular between the end cap and the top of the extruded profile element or the top of the light exit element of the extruded profile element conceivable.
  • These screw connections are not visible from below and thus do not reduce the appearance of the lamp body or the lamp.
  • LEDs are arranged on the light exit element of the extruded profile element in the region of the opening of the light exit element such that light can be emitted by the LEDs in the direction of the light exit direction.
  • LEDs are arranged on the light exit element of the extruded profile element in the region of the opening of the light exit element such that light can be emitted by the LEDs in the direction of the light exit direction.
  • LEDs as bulbs allows a particularly flat and compact design of such a lamp or lamp body.
  • the extruded profile element may comprise guide rails which are arranged opposite to the light exit direction in the longitudinal direction of extension and on the light exit element.
  • These guide rails may be formed, for example, for receiving LED printed circuit boards, which is a very simple and advantageous way to arrange LEDs on the lamp body.
  • the guide rails can also be used for pressing the coupling elements of the end cap with the extruded profile element.
  • the end cap can also have at least one guide element, by means of which a printed circuit board inserted between two guide rails of the extruded profile element can be at least partially covered. Since printed circuit boards inserted in the guide rails, in particular LED circuit boards for indirect illumination, can also have components that differ from the LEDs, such as a plug, the guide element can very advantageously provide a cover for such elements which should not be visible or also for protection, such as from pollution. In addition, the guide elements can also serve the positioning of the circuit boards.
  • At least one printed circuit board with LEDs arranged thereon is inserted between two guide rails, the LEDs being arranged on the printed circuit board such that light can be emitted from the LEDs in a direction opposite to the light exit direction.
  • the wiring for supplying the LEDs can run in a particularly space-saving manner under the end caps.
  • the removal of a part of the light exit surface and a part of the longitudinal side elements is preferably carried out by means of milling.
  • extruded profile ends can also be machined by means of milling or otherwise, for example, the corners of the light exit element at the extruded profile end can be rounded or the light exit element can be varied in shape in a different way.
  • the extruded profile element can subsequently be coated or powder coated in such a way, in particular on the removal of parts or following the milling processes, that the machining tracks are concealed.
  • Fig. 1a shows a schematic and perspective bottom view of an extruded profile element 12 of a lamp body 10 (see. Fig. 4a ) according to an embodiment of the invention.
  • the extruded profile element 12 has a light exit element 14 with a light exit opening 16.
  • 12 longitudinal side members 18 are arranged in the longitudinal direction of the extruded profile element, which limit the lamp body 10 laterally.
  • the extruded profile element 12 can be made of aluminum. Aluminum has a good thermal conductivity, high stability, even at low height of the lamp body 10, and is also still relatively inexpensive.
  • the extruded profile element 12 can be manufactured by means of extrusion processes.
  • the recess for the light exit opening 16 can then be introduced by a milling process. This will be a seamless Base body for the lamp body 10 is provided.
  • Fig. 1b shows a schematic profile representation of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention.
  • the extruded profile element 12 comprises a light exit element 14 and longitudinal side elements 18.
  • the longitudinal side elements 18 could also be angled in cross section, as shown here, and thus form part of a cover element of the luminaire body 10.
  • the extruded profile element 12 also comprises a plurality of guide rails 20. These can be designed to guide elements 30 (cf. Fig. 3a ) an end cap or LED PCBs.
  • the extruded profile element 12 may also be formed with a cover element 22.
  • the cover element 22 may in this case be closed, that is to say be in contact or integrally formed with the longitudinal side elements 18, or also, as shown here, extend over the cross section of the extruded profile element 12 only in certain regions.
  • This only partial embodiment of the cover element 22 has the advantage that LEDs radiating upwards can also be arranged on the light exit element 14, in particular opposite to the light emission direction of the LEDs arranged in the region of the light exit opening 16, in order to allow indirect illumination.
  • Fig. 1c shows a schematic and perspective plan view of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention.
  • the extruded profile element 12 is as to Fig. 1 and Fig. 2 already described.
  • the longitudinal side element ends 18a are at a distance from the extruded profile end 12a.
  • This shortened design of the longitudinal side elements 18 as well as of all other elements arranged on the light exit element 14 of the extruded profile element 12 can thereby also be realized by a milling operation, in particular after the extrusion of the extruded profile element.
  • This design of the extruded profile element 12 allows an arrangement of an end cap 26 on the extruded profile end 12a, so that no joints are visible from below and the visible lower outer surface of the lamp body 10 is realized as a continuous unit.
  • the end cap 26 can now be arranged on the extruded profile element 12 so that it contacts the upper side of the light outlet element 14 of the extruded profile element 12 and at the same time the Lijnsuiteelementenden 18.
  • the light exit element 14 may be configured in the region of the extruded end 12 a at will in its shape, such as for example, with rounded corners 24, as in Fig. 2 shown.
  • the end cap 26 may then also be designed accordingly in its shape, so that it is preferably form-fitting manner on the extruded profile element 12 can be arranged.
  • Fig. 3a shows a schematic representation of an end cap 26 of a lamp body 10 in a first perspective according to an embodiment of the invention.
  • the end cap 26 in this case has a transverse side surface 32, which forms a conclusion of the lamp body in its longitudinal extent.
  • the end cap 26 here also has rounded corners 24a, so that they are in an arrangement on an extruded profile element 12 according to Fig. 2 positively, in particular with its light exit element 14 terminates.
  • the end cap 26 comprises coupling elements 28, which, as shown here, are designed as connecting elements, which can be pressed into the extruded profile element 12.
  • the end cap 26 also comprises guide elements 30, which are formed flat and can be inserted into the guide rails 20 of the extruded profile element 12.
  • Fig. 3b shows the in Fig. 3a illustrated end cap 26 again from a second perspective.
  • Fig. 4a shows a schematic representation of a lamp body 10 with an extruded profile element 12 and an end cap 26 can be arranged thereon according to an embodiment of the invention.
  • the end cap 26 may be formed so that it has side surfaces which form a conclusion to the transverse side of the lamp body 10 back and up, and that in particular between the ends of the guide rails 20 and the transverse side surface 32 is a distance.
  • a clearance or cavity is provided, so that in the end cap 26, the wiring 34 for supplying the LEDs can run and in particular can be guided around the guide rails 20.
  • Fig. 4b shows a schematic representation of a lamp body 10 as in Fig. 4a In particular, this can be easily inserted into the extruded profile element 12 by the existing coupling elements 28 and / or guide elements 30.
  • Fig. 5 shows a schematic representation of a designed for a ceiling light fixture body 10 with a suspension 36 according to an embodiment of the invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Technisches GebietTechnical area

Die Erfindung geht aus von einem Leuchtenkörper nach dem Oberbegriff des Patentanspruchs 1 und einem Verfahren zum Herstellen eines Leuchtenkörpers.The invention relates to a lamp body according to the preamble of patent claim 1 and a method for producing a lamp body.

Stand der TechnikState of the art

Aus dem Stand der Technik sind Leuchtenkörper bekannt, die aus einem stranggepressten Profil gefertigt sind, da Extrusionsverfahren besonders kostengünstig sind und besonders geeignet für die Herstellung von Leuchten mit einer großen Längserstreckung, wie beispielsweise Büroleuchten. Diese Strangprofile werden üblicherweise an den durch das Herstellungsverfahren bedingt offenen Seiten mit Endkappen abgedeckt.From the prior art lamp body are known, which are made of an extruded profile, since extrusion processes are particularly cost-effective and particularly suitable for the production of lights with a large longitudinal extent, such as office lighting. These extruded profiles are usually covered on the conditionally open sides by the manufacturing process with end caps.

Beispielsweise zeigt die europäische Patentanmeldung EP 2 123 976 A1 ein Gehäuse einer Leuchte aus einem Strangpresskörper, dessen Enden jeweils mit Stirnwänden versehen sind.For example, shows the European patent application EP 2 123 976 A1 a housing of a lamp made of an extruded body, whose ends are each provided with end walls.

Dadurch, dass diese Endkappen als separate Elemente auf die Enden des Spritzgussprofils aufgesetzt werden, sind Luftspalte bzw. Trennfugen zwischen den Endkappen und dem Spritzgussprofil vorhanden, aus denen ungewollt Licht austreten kann, was sich störend auf den optischen Eindruck einer solchen Leuchte auswirkt.The fact that these end caps are placed as separate elements on the ends of the injection molding, air gaps or joints between the end caps and the injection molding profile are present, from which unintentionally light can escape, which interferes with the visual impression of such a lamp.

Darstellung der ErfindungPresentation of the invention

Die Aufgabe der vorliegenden Erfindung ist es daher, einen Leuchtenkörper bereitzustellen, welcher auf kostengünstige Weise herstellbar ist und keine den optischen Eindruck mindernde Trennfugen aufweist, sowie ein kostengünstiges Verfahren zum Herstellen eines derartigen Leuchtenkörpers bereitzustellen.The object of the present invention is therefore to provide a lamp body which can be produced in a cost-effective manner and does not have the optical impression reducing joints, as well as to provide a cost-effective method for producing such a lamp body.

Diese Aufgabe wird gelöst durch einen Leuchtenkörper mit den Merkmalen des Patentanspruchs 1 und ein Verfahren mit den Merkmalen des Patentanspruchs 10.This object is achieved by a lamp body having the features of patent claim 1 and a method having the features of patent claim 10.

Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.Particularly advantageous embodiments can be found in the dependent claims.

Der erfindungsgemäße Leuchtenkörper umfasst ein Strangprofilelement mit einer ersten Längserstreckung in einer Längserstreckungsrichtung, wobei das Strangprofilelement ein Lichtaustrittselement mit mindestens einer darin angeordneten Lichtaustrittsöffnung aufweist. Das Lichtaustrittselement begrenzt dabei den Leuchtenkörper zumindest teilweise in einer Lichtaustrittsrichtung. Das Strangprofilelement umfasst zwei zumindest teilweise entlang der Längserstreckungsrichtung sich gegenüberliegend und entgegen der Lichtaustrittsrichtung am Lichtaustrittselement angeordnete Längsseitenelemente mit einer zweiten Längserstreckung in der Längserstreckungsrichtung. Diese Längsseitenelemente begrenzen den Leuchtenkörper entlang der Längserstreckungsrichtung zumindest teilweise seitlich, wobei das Strangprofilelement mindestens ein offenes Strangprofilende aufweist, das das Strangprofilelement in seiner ersten Längserstreckung begrenzt. Des Weiteren umfasst der Leuchtenkörper mindestens eine Endkappe, die an dem mindestens einen offenen Strangprofilende des Strangprofilelements anordenbar ist. Die Längsseitenelemente weisen jeweils mindestens ein Längsseitenelementende auf, welches das jeweilige Längsseitenelement in seiner zweiten Längserstreckung begrenzt, wobei die Längsseitenelemente derart am Lichtaustrittselement angeordnet sind, dass die Längsseitenelementenden jeweils einen Abstand zum Strangprofilende aufweisen, so dass die Endkappe kontaktierend an den Längsseitenelementenden und am Lichtaustrittselement anordenbar ist.The luminaire body according to the invention comprises an extruded profile element with a first longitudinal extension in a longitudinal direction, wherein the extruded profile element has a light exit element with at least one light exit opening arranged therein. The light exit element thereby limits the luminaire body at least partially in a light exit direction. The extruded profile element comprises two longitudinal side elements arranged opposite one another at least partially along the longitudinal extension direction and arranged opposite the light exit direction on the light exit element, with a second longitudinal extent in the longitudinal direction of extension. These longitudinal side elements delimit the luminaire body along the longitudinal extension direction at least partially laterally, wherein the extruded profile element has at least one open extruded profile end which delimits the extruded profile element in its first longitudinal extent. Furthermore, the luminaire body comprises at least one end cap, which can be arranged on the at least one open extruded profile end of the extruded profile element. The longitudinal side elements each have at least one longitudinal side element end which delimits the respective longitudinal side element in its second longitudinal extent, the longitudinal side elements being arranged on the light exit element such that the longitudinal side element ends each have a spacing from the extruded profile end so that the end cap can be arranged in contact with the longitudinal side element ends and the light exit element is.

So wird es auf sehr vorteilhafte Weise ermöglicht, dass sich Trennfugen, insbesondere zwischen der Endkappe und dem Strangprofilelement, nicht im Sichtfeld eines Benutzers befinden, welches üblicherweise bei direkter Beleuchtung durch das Lichtaustrittselement in Lichtaustrittsrichtung eines Leuchtenkörpers bereitgestellt ist. Dies hat zudem den Vorteil, dass der Leuchtenkörper sehr einfach und kostengünstig als Strangprofil mittels Extrusion gefertigt werden kann und zur Abdeckung der offenen Strangprofilenden separate Endkappen verwendet werden können, ohne dabei optisch störende Trennfugen in Kauf nehmen zu müssen. Denn durch die erfindungsgemäße Ausbildung des Strangprofilelements und die dadurch bereitgestellte Anordnungsmöglichkeit der Endkappe wird es erst ermöglicht, dass sich die Kontaktbereiche zwischen der Endkappe und dem Strangprofilelement nicht im Sichtbereich eines Benutzers befinden. Die Unterseite des Leuchtenkörpers wird so allein durch das Lichtaustrittselement des Strangprofilelements gebildet. Als Unterseite wird hierbei insbesondere das Lichtaustrittselement in Lichtaustrittsrichtung bezeichnet, ohne dass darunter verstanden werden soll, dass das Lichtaustrittselement "unten" angeordnet sein muss. Der Leuchtenköper kann nicht nur für Deckenleuchten verwendet werden, sonder kann beispielsweise auch an einer Wand oder in anderer Positionierung angeordnet werden, so dass die Unterseite des Leuchtenkörpers bei einer räumlichen Anordnung nicht zwingend unten ist. Die Endkappe, insbesondere deren Unterseite, ist also so an den offenen Enden des Strangprofilelements anordenbar, dass diese sich oberhalb des Lichtaustrittselements befindet, und somit von unten auch kein Luftspalt oder eine Trennfuge, aus der unerwünschter Weise Licht austreten kann, zu sehen ist. Somit kann die sichtbare untere Außenfläche des Leuchtenkörpers als durchgängige Einheit realisiert werden.Thus, it is possible in a very advantageous manner that parting lines, in particular between the end cap and the extruded profile element, are not in the field of view of a user, which is usually provided in direct light through the light exit element in the light exit direction of a lamp body. This also has the advantage that the lamp body can be manufactured very easily and inexpensively as extruded profile by extrusion and to cover the open extruded profile ends separate end caps can be used without having to take optically disturbing joints in purchasing. Because of the inventive design of the extruded profile element and thereby provided arrangement possibility of the end cap, it is only possible that the contact areas between the end cap and the extruded profile element are not in the field of view of a user. The underside of the lamp body is thus formed solely by the light exit element of the extruded profile element. In this case, in particular the light exit element in the light exit direction is referred to as the underside, without being understood thereby is to be that the light exit element must be arranged "down". The light fixture can not only be used for ceiling lights, but can for example be arranged on a wall or in another positioning, so that the bottom of the lamp body is not necessarily down in a spatial arrangement. The end cap, in particular the underside thereof, can therefore be arranged at the open ends of the extruded profile element such that it is located above the light outlet element, and thus no air gap or parting line from which unwanted light can escape from below can be seen from below. Thus, the visible lower outer surface of the lamp body can be realized as a continuous unit.

Die Lichtaustrittsöffnung des Lichtaustrittselements des Strangprofilelements kann dabei beispielsweise durch einen Fräsvorgang in das Lichtaustrittselement eingebracht werden. In diesem Bearbeitungsschritt können auch die Enden des Strangprofilelements so bearbeitet werden, dass die Endkappen an der unteren Sichtfläche nicht sichtbar sind. So ist auch die Herstellung eines solchen Leuchtenkörpers sehr kostengünstig und einfach und es wird gleichzeitig eine fugenlose untere Außenfläche durch den erfindungsgemäßen Leuchtenkörper bereitgestellt.The light exit opening of the light exit element of the extruded profile element can be introduced, for example, by a milling process in the light exit element. In this processing step, the ends of the extruded profile element can be edited so that the end caps are not visible on the lower viewing surface. Thus, the production of such a lamp body is very inexpensive and easy and it is at the same time a jointless lower outer surface provided by the lamp body according to the invention.

Bei einer Ausgestaltung der Erfindung bilden das Strangprofilende und zumindest ein Teil der am offenen Strangprofilende angeordneten Endkappe eine Stirnseite des Leuchtenkörpers. Bearbeitungsspuren, wie beispielsweise Fräßkanten am Strangprofilende, sofern vorhanden, können durch eine Beschichtung, insbesondere Pulver, kaschiert werden. So kann es ermöglicht werden, dass an der Lichtaustrittsseite keine Trennfugen vorhanden sind, die den optischen Eindruck mindern, und dass gleichzeitig auch die Stirnseite des Leuchtenkörpers, sofern sie sich in einem Sichtfeld eines Benutzers befindet, einen geschlossenes und einheitliches Erscheinungsbild liefert.
Bei einer vorteilhaften Ausgestaltung der Erfindung ist der jeweilige Abstand der Längsseitenelementenden zum Strangprofilende mindestens so groß wie eine Dicke der Endkappe in einem jeweiligen Kontaktbereich, in welchem die Endkappe mit den jeweiligen Längsseitenelementenden kontaktierbar ist, wobei die Dicke der Endkappe eine Abmessung in der Längserstreckungsrichtung des Strangprofilelements bei einem Anordnen der Endkappe an dem mindestens einen offenen Strangprofilende ist. So kann es auf besonders vorteilhafte Weise bewerkstelligt werden, dass nicht nur keine Fugen von unten sichtbar sind, sondern auch keine überstehenden Teile der Endkappen.In one embodiment of the invention, the extruded profile end and at least part of the end cap arranged at the open extruded end end form an end face of the luminaire body. Processing marks, such as milling edges on the extruded profile end, if present, can be laminated by a coating, in particular powder. So it can be made possible that at the light exit side no joints are present, which reduce the visual impression, and that at the same time provides the front side of the lamp body, if it is in a field of view of a user, a closed and uniform appearance.
In an advantageous embodiment of the invention, the respective distance of the longitudinal side element ends to the extruded profile end is at least as large as a thickness of the end cap in a respective contact region in which the end cap is contactable with the respective longitudinal side element ends, wherein the thickness of the end cap is a dimension in the longitudinal direction of the extruded profile element when placing the end cap on the at least one open extruded profile end. Thus, it can be accomplished in a particularly advantageous manner that not only no joints are visible from below, but also no protruding parts of the end caps.

Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung sind das Strangprofilelement und die mindestens eine Endkappe derart ausgebildet, dass die Endkappe an dem mindestens einen offenen Strangprofilende formschlüssig anordenbar ist, was ein besonders einheitliches Erscheinungsbild des Leuchtenkörpers ermöglicht.In a further advantageous embodiment of the invention, the extruded profile element and the at least one end cap are designed such that the end cap can be arranged in a form-fitting manner on the at least one open extruded profile end, which allows a particularly uniform appearance of the luminaire body.

Des Weiteren kann die mindestens eine Endkappe mindestens ein Kopplungselement aufweisen, mittels welchem die Endkappe am Strangprofilelement befestigbar ist. Dieses Kopplungselement kann dabei so ausgebildet sein, dass es in das Strangprofilelement einpressbar ist. Dafür können auch mehrere Kopplungselemente vorgesehen sein, so dass diese so an der Endkappe angeordnet sind, dass diese beispielsweise beim Anordnen der Endkappe an einem offenen Strangprofilende gegen die Innenflächen der Längsseitenelemente pressbar sind, so dass die Befestigung durch die reibschlüssige Pressverbindung bewerkstellig wird. Durch eine derartige Pressverbindung werden zudem mögliche Fugen zwischen der Endkappe und dem Strangprofilelement weiter reduziert. die Endkappe und/oder nur die Kopplungselemente können dabei beispielsweise aus einem zumindest zum Teil elastischem Material sein. Alternativ oder zusätzlich ist aber auch eine Ausbildung der Kopplungselemente als Schraubverbindung, insbesondere zwischen der Endkappe und der Oberseite des Strangprofilelements bzw. der Oberseite des Lichtaustrittselements des Strangprofilelements denkbar. Auch diese Schraubverbindungen sind von unten nicht sichtbar und mindern somit nicht das Erscheinungsbild des Leuchtenkörpers bzw. der Leuchte.Furthermore, the at least one end cap can have at least one coupling element by means of which the end cap can be fastened to the extruded profile element. This coupling element can be designed so that it can be pressed into the extruded profile element. For this purpose, a plurality of coupling elements may be provided, so that they are arranged on the end cap, that this example, when placing the end cap on an open Extruded profile against the inner surfaces of the longitudinal side elements are pressed, so that the attachment is accomplished by the frictional press connection. By such a press connection also possible joints between the end cap and the extruded element are further reduced. The end cap and / or only the coupling elements may be, for example, from an at least partially elastic material. Alternatively or additionally, however, a design of the coupling elements as a screw connection, in particular between the end cap and the top of the extruded profile element or the top of the light exit element of the extruded profile element conceivable. These screw connections are not visible from below and thus do not reduce the appearance of the lamp body or the lamp.

Bei einer weiteren Ausgestaltung der Erfindung sind LEDs am Lichtaustrittselement des Strangprofilelements im Bereich der Öffnung des Lichtaustrittselements derart angeordnet, dass von den LEDs Licht in Richtung der Lichtaustrittsrichtung abstrahlbar ist. Gerade die Verwendung von LEDs als Leuchtmittel ermöglicht eine besonders flache und kompakte Bauweise einer solchen Leuchte bzw. Leuchtenkörpers.In a further embodiment of the invention, LEDs are arranged on the light exit element of the extruded profile element in the region of the opening of the light exit element such that light can be emitted by the LEDs in the direction of the light exit direction. Especially the use of LEDs as bulbs allows a particularly flat and compact design of such a lamp or lamp body.

Darüber hinaus kann das Strangprofilelement Führungsschienen aufweisen, welche in Längserstreckungsrichtung und am Lichtaustrittselement entgegengesetzt zur Lichtaustrittsrichtung angeordnet sind. Diese Führungsschienen können beispielsweise zur Aufnahme von LED-Leiterplatten ausgebildet sein, was eine sehr einfache und vorteilhafte Möglichkeit zur Anordnung von LEDs am Leuchtenkörper darstellt. Weiterhin können die Führungsschienen auch zum Verpressen der Kopplungselemente der Endkappe mit dem Strangprofilelement genutzt werden.In addition, the extruded profile element may comprise guide rails which are arranged opposite to the light exit direction in the longitudinal direction of extension and on the light exit element. These guide rails may be formed, for example, for receiving LED printed circuit boards, which is a very simple and advantageous way to arrange LEDs on the lamp body. Furthermore, the guide rails can also be used for pressing the coupling elements of the end cap with the extruded profile element.

Des Weiteren kann die Endkappe auch mindestens ein Führungselement aufweisen, mittels welchem eine zwischen zwei Führungsschienen des Strangprofilelements eingeführte Leiterplatte zumindest zum Teil abdeckbar ist. Da in die Führungsschienen eingeführte Leiterplatten, insbesondere LED-Leiterplatten zur indirekten Beleuchtung auch von den LEDs verschiedene Komponenten, wie beispielsweise einen Stecker, aufweisen können, kann durch das Führungselement auf sehr vorteilhafte Weise eine Abdeckung solcher Elemente bereitgestellt werden, welche nicht sichtbar sein sollen oder auch zum Schutz, wie beispielsweise vor Verschmutzung. Darüber hinaus können die Führungselemente auch der Positionierung der Leiterplatten dienen.Furthermore, the end cap can also have at least one guide element, by means of which a printed circuit board inserted between two guide rails of the extruded profile element can be at least partially covered. Since printed circuit boards inserted in the guide rails, in particular LED circuit boards for indirect illumination, can also have components that differ from the LEDs, such as a plug, the guide element can very advantageously provide a cover for such elements which should not be visible or also for protection, such as from pollution. In addition, the guide elements can also serve the positioning of the circuit boards.

Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung ist zwischen zwei Führungsschienen mindestens eine Leiterplatte mit darauf angeordneten LEDs eingeführt, wobei die LEDs derart auf der Leiterplatte angeordnet sind, dass von den LEDs Licht in einer Richtung entgegengesetzt zur Lichtaustrittsrichtung abstrahlbar ist. Somit wird auch hier ein besonders einfaches Anordnen von LEDs auf dem Strangprofilelement ermöglicht, wobei durch die Anordnung der LEDs entgegengesetzt zur Lichtaustrittsrichtung auf sehr vorteilhafte Weise eine indirekte Beleuchtung bereitgestellt wird.In a further advantageous embodiment of the invention, at least one printed circuit board with LEDs arranged thereon is inserted between two guide rails, the LEDs being arranged on the printed circuit board such that light can be emitted from the LEDs in a direction opposite to the light exit direction. Thus, a particularly simple arrangement of LEDs on the extruded profile element is made possible here as well, wherein indirect illumination is provided by the arrangement of the LEDs opposite to the light exit direction in a very advantageous manner.

Darüber hinaus kann die Verdrahtung zur Versorgung der LEDs auf besonders platzsparende Weise unter den Endkappen verlaufen.In addition, the wiring for supplying the LEDs can run in a particularly space-saving manner under the end caps.

Das erfindungsgemäße Verfahren zum Herstellen eines Leuchtenkörpers umfasst die Schritte:

  • Strangpressen eines Strangprofilelements mit einer ersten Längserstreckung in einer Längserstreckungsrichtung, mit einem Lichtaustrittselement und mit zwei zumindest teilweise entlang der Längserstreckungsrichtung sich gegenüberliegend und entgegen einer Lichtaustrittsrichtung am Lichtaustrittselement angeordnete Längsseitenelemente mit der ersten Längserstreckung in der Längserstreckungsrichtung, wobei das Lichtaustrittselement den Leuchtenkörper zumindest teilweise in der Lichtaustrittsrichtung begrenzt, wobei die Längsseitenelemente den Leuchtenkörper entlang der Längserstreckungsrichtung zumindest teilweise seitlich begrenzen;
  • Entfernen mindestens eines Teils des Lichtaustrittselements des Strangprofilelements, so dass mindestens eine Öffnung im Lichtaustrittselement entsteht;
  • Entfernen eines Teils der Längsseitenelemente an mindestens einem offenen Strangprofilende, so dass diese jeweils eine zweite Längserstreckung aufweisen, welche durch jeweils ein Längsseitenelementende begrenzt ist, und so dass die Längsseitenelementenden jeweils einen Abstand zum Strangprofilende aufweisen;
  • Anordnen einer Endkappe am offenen Strangprofilende derart, dass diese das Lichtaustrittselement und die Längsseitenelementenden kontaktiert.
The method according to the invention for producing a luminaire body comprises the steps:
  • Extruding an extruded profile element having a first longitudinal extent in a longitudinal extension direction, with a light exit element and with two longitudinal side elements at least partially along the longitudinal extension direction and opposite to a light exit direction on the light exit element with the first longitudinal extent in the longitudinal extension direction, the light exit element at least partially in the light exit direction limited, wherein the longitudinal side elements at least partially laterally delimit the lamp body along the longitudinal direction;
  • Removing at least a portion of the light exit element of the extruded profile element, so that at least one opening in the light exit element is formed;
  • Removing a part of the longitudinal side elements at at least one open extruded profile end, so that they each have a second longitudinal extension, which is delimited by a respective longitudinal side element end, and so that the longitudinal side element ends each have a distance from the extruded profile end;
  • Arranging an end cap on the open extruded profile end such that it contacts the light exit element and the longitudinal side element ends.

Das Entfernen eines Teils der Lichtaustrittsfläche und eines Teils der Längsseitenelemente erfolgt dabei bevorzugt mittels Fräsen.The removal of a part of the light exit surface and a part of the longitudinal side elements is preferably carried out by means of milling.

Bei einer vorteilhaften Ausgestaltung der Erfindung umfasst dass Verfahren vor dem Anordnen der Endkappe den weiteren Schritt:

  • - Entfernen eines Teils des Lichtaustrittselements am Strangprofilende entsprechend einer vorgebbaren Formgebung einer Kontur des Strangprofilendes.
In an advantageous embodiment of the invention, the method comprises the further step before arranging the end cap:
  • - Removing a portion of the light exit element at the extruded profile end according to a predetermined shaping of a contour of the extruded profile end.

Die Strangprofilenden können dabei ebenfalls mittels Fräsen oder anderweitig bearbeitet werden, beispielsweise können die Ecken des Lichtaustrittselements am Strangprofilende abgerundet werden oder das Lichtaustrittselement in anderer Weise in ihrer Form variiert werden. Des Weiteren kann der das Strangprofilelement im Anschluss, insbesondere an das Entfernen von Teilen bzw. im Anschluss an die Fräsvorgänge, so beschichtet bzw. bepulvert werden, dass die Bearbeitungsspuren verdeckt werden.The extruded profile ends can also be machined by means of milling or otherwise, for example, the corners of the light exit element at the extruded profile end can be rounded or the light exit element can be varied in shape in a different way. Furthermore, the extruded profile element can subsequently be coated or powder coated in such a way, in particular on the removal of parts or following the milling processes, that the machining tracks are concealed.

Darüber hinaus gelten alle für den erfindungsgemäßen Leuchtenkörper genannten Ausgestaltungen, Merkmale und Vorteile in gleicher Weise, soweit anwendbar, auch für das erfindungsgemäße Verfahren.In addition, all embodiments, features and advantages mentioned for the luminaire body according to the invention apply in the same way, as far as applicable, also for the method according to the invention.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den Ansprüchen, der nachfolgenden Beschreibung bevorzugter Ausführungsformen sowie anhand der Zeichnungen.Further advantages, features and details of the invention will become apparent from the claims, the following description of preferred embodiments and from the drawings.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Im Folgenden soll die Erfindung anhand von Ausführungsbeispielen näher erläutert werden. Die Figuren zeigen:

Fig. 1a
eine schematische und perspektivische Unteransicht eines Strangprofilelements eines Leuchtenkörpers gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 1b
eine schematische Profildarstellung eines Strangprofilelements eines Leuchtenkörpers gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 1c
eine schematische und perspektivische Draufsicht auf ein Strangprofilelement eines Leuchtenkörpers gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 2
eine schematische und perspektivische Draufsicht auf ein Strangprofilelement eines Leuchtenkörpers mit abgerundeten Ecken gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 3a
eine schematische Darstellung einer Endkappe eines Leuchtenkörpers in einer ersten Perspektive gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 3b
eine schematische Darstellung einer Endkappe eines Leuchtenkörpers in einer zweiten Perspektive gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 4a
eine schematische Darstellung eines Leuchtenkörpers mit einem Strangprofilelement und einer daran anordenbaren Endkappe gemäß einem Ausführungsbeispiel der Erfindung;
Fig. 4b
eine schematische Darstellung eines Leuchtenkörpers mit einem Strangprofilelement und einer daran angeordneten Endkappe gemäß einem Ausführungsbeispiel der Erfindung; und
Fig. 5
eine schematische Darstellung eines für eine Deckenleuchte ausgestalteten Leuchtenkörpers mit einer Aufhängung gemäß einem Ausführungsbeispiel der Erfindung.
In the following, the invention will be explained in more detail with reference to exemplary embodiments. The figures show:
Fig. 1a
a schematic and perspective bottom view of an extruded profile element of a lamp body according to an embodiment of the invention;
Fig. 1b
a schematic profile representation of an extruded profile element of a lamp body according to an embodiment of the invention;
Fig. 1c
a schematic and perspective plan view of an extruded profile element of a lamp body according to an embodiment of the invention;
Fig. 2
a schematic and perspective plan view of an extruded profile element of a lamp body with rounded corners according to an embodiment of the invention;
Fig. 3a
a schematic representation of an end cap of a lamp body in a first perspective according to an embodiment of the invention;
Fig. 3b
a schematic representation of an end cap of a lamp body in a second perspective according to an embodiment of the invention;
Fig. 4a
a schematic representation of a lamp body with an extruded profile element and an end cap can be arranged thereon according to an embodiment of the invention;
Fig. 4b
a schematic representation of a lamp body with an extruded profile element and an end cap arranged thereon according to an embodiment of the invention; and
Fig. 5
a schematic representation of a designed for a ceiling lamp luminaire body with a suspension according to an embodiment of the invention.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Fig. 1a zeigt eine schematische und perspektivische Unteransicht eines Strangprofilelements 12 eines Leuchtenkörpers 10 (vgl. Fig. 4a) gemäß einem Ausführungsbeispiel der Erfindung. Das Strangprofilelement 12 weist dabei ein Lichtaustrittselement 14 mit einer Lichtaustrittsöffnung 16 auf. Darüber hinaus sind in der Längserstreckungsrichtung des Strangprofilelements 12 Längsseitenelemente 18 angeordnet, welche den Leuchtenkörper 10 seitlich begrenzen. Das Strangprofilelement 12 kann dabei aus Aluminium gefertigt sein. Aluminium besitzt eine gute Wärmeleitfähigkeit, eine hohe Stabilität, auch bei geringer Bauhöhe des Leuchtenkörpers 10, und ist zudem noch relativ kostengünstig. Das Strangprofilelement 12 kann dabei mittels Extrusionsverfahren gefertigt sein. Die Aussparung für die Lichtaustrittsöffnung 16 kann anschließend durch einen Fräsvorgang eingebracht werden. Dadurch wird ein fugenloser Grundkörper für den Leuchtenkörper 10 bereitgestellt. Fig. 1a shows a schematic and perspective bottom view of an extruded profile element 12 of a lamp body 10 (see. Fig. 4a ) according to an embodiment of the invention. The extruded profile element 12 has a light exit element 14 with a light exit opening 16. In addition, 12 longitudinal side members 18 are arranged in the longitudinal direction of the extruded profile element, which limit the lamp body 10 laterally. The extruded profile element 12 can be made of aluminum. Aluminum has a good thermal conductivity, high stability, even at low height of the lamp body 10, and is also still relatively inexpensive. The extruded profile element 12 can be manufactured by means of extrusion processes. The recess for the light exit opening 16 can then be introduced by a milling process. This will be a seamless Base body for the lamp body 10 is provided.

Fig. 1b zeigt eine schematische Profildarstellung eines Strangprofilelements 12 eines Leuchtenkörpers 10 gemäß einem Ausführungsbeispiel der Erfindung. Auch hier umfasst das Strangprofilelement 12 ein Lichtaustrittselement 14 und Längsseitenelemente 18. Die Längsseitenelemente 18 könne dabei auch, wie hier dargestellt, im Querschnitt angewinkelt ausgebildet sein und somit einen Teil eines Deckelements des Leuchtenkörpers 10 bilden. Darüber hinaus umfasst das Strangprofilelement 12 noch mehrere Führungsschienen 20. Diese können dazu ausgebildet sein, Führungselemente 30 (vgl. Fig. 3a) einer Endkappe aufzunehmen oder auch LED-Leiterplatten. Des Weiteren kann das Strangprofilelement 12 auch mit einem Deckelement 22 ausgebildet sein. Dieses kann in einem Abstand zum Lichtaustrittselement 14 angeordnet sein, um beispielsweise dazwischen LEDs im Bereich der Lichtaustrittsöffnung 16 des Lichtaustrittselements 14 anzuordnen. Das Deckelement 22 kann dabei geschlossen, also kontaktierend bzw. einstückig mit den Längsseitenelementen 18 ausgebildet sein, oder auch, wie hier dargestellt, sich nur bereichsweise über den Querschnitt des Strangprofilelements 12 erstrecken. Diese nur teilweise Ausführung des Deckelements 22 hat den Vorteil, dass auch nach oben abstrahlende LEDs auf dem Lichtaustrittselement 14 angeordnet werden können, insbesondere entgegen der Lichtabstrahlrichtung der im Bereich der Lichtaustrittsöffnung 16 angeordneten LEDs, um eine indirekte Beleuchtung zu ermöglichen. Fig. 1b shows a schematic profile representation of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention. Here, too, the extruded profile element 12 comprises a light exit element 14 and longitudinal side elements 18. The longitudinal side elements 18 could also be angled in cross section, as shown here, and thus form part of a cover element of the luminaire body 10. In addition, the extruded profile element 12 also comprises a plurality of guide rails 20. These can be designed to guide elements 30 (cf. Fig. 3a ) an end cap or LED PCBs. Furthermore, the extruded profile element 12 may also be formed with a cover element 22. This can be arranged at a distance from the light exit element 14 in order, for example, to arrange LEDs therebetween in the region of the light exit opening 16 of the light exit element 14. The cover element 22 may in this case be closed, that is to say be in contact or integrally formed with the longitudinal side elements 18, or also, as shown here, extend over the cross section of the extruded profile element 12 only in certain regions. This only partial embodiment of the cover element 22 has the advantage that LEDs radiating upwards can also be arranged on the light exit element 14, in particular opposite to the light emission direction of the LEDs arranged in the region of the light exit opening 16, in order to allow indirect illumination.

Fig. 1c zeigt eine schematische und perspektivische Draufsicht auf ein Strangprofilelement 12 eines Leuchtenkörpers 10 gemäß einem Ausführungsbeispiel der Erfindung. Das Strangprofilelement 12 ist dabei wie zu Fig. 1 und Fig. 2 bereits beschrieben ausgeführt. In dieser Darstellung ist nun gut zu erkennen, dass die Längsseitenelementenden 18a einen Abstand zum Strangprofilende 12a aufweisen. Das Gleiche gilt natürlich auch für alle anderen auf dem Strangprofilelement 12 angeordneten und einstückig mit diesem ausgebildeten Elementen wie den Führungsschienen 20 und des Deckelements 22. Diese verkürzte Ausbildung der Längsseitenelemente 18, sowie auch aller anderen auf dem Lichtaustrittselement 14 des Strangprofilelements 12 angeordneten Elemente kann dabei ebenfalls durch einen Fräsvorgang, insbesondere nach dem Strangpressen des Strangprofilelements, realisiert werden. Diese Ausbildung des Strangprofilelements 12 ermöglicht eine Anordnung einer Endkappe 26 am Strangprofilende 12a, so dass von unten keine Trennfugen sichtbar sind und die sichtbare untere Außenfläche des Leuchtenkörpers 10 als durchgängige Einheit realisiert ist. Die Endkappe 26 kann nun so am Strangprofilelement 12 angeordnet werden, dass sie die Oberseite des Lichtaustrittselements 14 des Strangprofilelements 12 kontaktiert und gleichzeitig auch die Längsseitenelementenden 18. Des Weiteren kann das Lichtaustrittselement 14 im Bereich des Strangprofilendes 12a nach Belieben in seiner Formgebung ausgestaltet sein, wie beispielsweise mit abgerundeten Ecken 24, wie in Fig. 2 dargestellt. Die Endkappe 26 kann in ihrer Formgebung dann ebenfalls entsprechend ausgestaltet sein, so dass diese bevorzugt formschlüssig am Strangprofilelement 12 anordenbar ist. Fig. 1c shows a schematic and perspective plan view of an extruded profile element 12 of a lamp body 10 according to an embodiment of the invention. The extruded profile element 12 is as to Fig. 1 and Fig. 2 already described. In this illustration, it can now be clearly seen that the longitudinal side element ends 18a are at a distance from the extruded profile end 12a. The same naturally also applies to all other elements arranged on the extruded profile element 12 and integrally formed therewith, such as the guide rails 20 and the cover element 22. This shortened design of the longitudinal side elements 18 as well as of all other elements arranged on the light exit element 14 of the extruded profile element 12 can thereby also be realized by a milling operation, in particular after the extrusion of the extruded profile element. This design of the extruded profile element 12 allows an arrangement of an end cap 26 on the extruded profile end 12a, so that no joints are visible from below and the visible lower outer surface of the lamp body 10 is realized as a continuous unit. The end cap 26 can now be arranged on the extruded profile element 12 so that it contacts the upper side of the light outlet element 14 of the extruded profile element 12 and at the same time the Längsseitenelementenden 18. Furthermore, the light exit element 14 may be configured in the region of the extruded end 12 a at will in its shape, such as for example, with rounded corners 24, as in Fig. 2 shown. The end cap 26 may then also be designed accordingly in its shape, so that it is preferably form-fitting manner on the extruded profile element 12 can be arranged.

Fig. 3a zeigt eine schematische Darstellung einer Endkappe 26 eines Leuchtenkörpers 10 in einer ersten Perspektive gemäß einem Ausführungsbeispiel der Erfindung. Die Endkappe 26 weist dabei eine Querseitenfläche 32 auf, welche einen Abschluss des Leuchtenkörpers in seiner Längserstreckung bildet. Des Weiteren weist die Endkappe 26 hier ebenfalls abgerundete Ecken 24a auf, so dass sie bei einer Anordnung an einem Strangprofilelement 12 gemäß Fig. 2 formschlüssig, insbesondere mit dessen Lichtaustrittselement 14 abschließt. Als Halterung bzw. zur Befestigung der Endkappe 26 am Strangprofilelement 12 umfasst die Endkappe 26 Kopplungselemente 28, die, wie hier dargestellt, als Verbindungselemente ausgebildet sind, welche in das Strangprofilelement 12 eingepresst werden können. Darüber hinaus umfasst die Endkappe 26 noch Führungselemente 30, welche flach ausgebildet sind und in die Führungsschienen 20 des Strangprofilelements 12 eingeführt werden können. Fig. 3a shows a schematic representation of an end cap 26 of a lamp body 10 in a first perspective according to an embodiment of the invention. The end cap 26 in this case has a transverse side surface 32, which forms a conclusion of the lamp body in its longitudinal extent. Furthermore, the end cap 26 here also has rounded corners 24a, so that they are in an arrangement on an extruded profile element 12 according to Fig. 2 positively, in particular with its light exit element 14 terminates. As a holder or for fastening the end cap 26 on the extruded profile element 12, the end cap 26 comprises coupling elements 28, which, as shown here, are designed as connecting elements, which can be pressed into the extruded profile element 12. In addition, the end cap 26 also comprises guide elements 30, which are formed flat and can be inserted into the guide rails 20 of the extruded profile element 12.

Fig. 3b zeigt die in Fig. 3a dargestellte Endkappe 26 erneut aus einer zweiten Perspektive. Fig. 3b shows the in Fig. 3a illustrated end cap 26 again from a second perspective.

Fig. 4a zeigt eine schematische Darstellung eines Leuchtenkörpers 10 mit einem Strangprofilelement 12 und einer daran anordenbaren Endkappe 26 gemäß einem Ausführungsbeispiel der Erfindung. Die Endkappe 26 kann dabei so ausgebildet sein, dass sie Seitenflächen aufweist, welche einen Abschluss zur Querseite des Leuchtenkörpers 10 hin und nach oben hin bilden, und dass insbesondere zwischen den Enden der Führungsschienen 20 und der Querseitenfläche 32 ein Abstand ist. Durch diese Ausbildung wird ein Freiraum bzw. Hohlraum bereitgestellt, so dass in der Endkappe 26 die Verdrahtung 34 zur Versorgung der LEDs verlaufen kann und insbesondere auch um die Führungsschienen 20 herumgeführt werden kann. Fig. 4a shows a schematic representation of a lamp body 10 with an extruded profile element 12 and an end cap 26 can be arranged thereon according to an embodiment of the invention. The end cap 26 may be formed so that it has side surfaces which form a conclusion to the transverse side of the lamp body 10 back and up, and that in particular between the ends of the guide rails 20 and the transverse side surface 32 is a distance. By this design, a clearance or cavity is provided, so that in the end cap 26, the wiring 34 for supplying the LEDs can run and in particular can be guided around the guide rails 20.

Fig. 4b zeigt eine schematische Darstellung eines Leuchtenkörpers 10 wie in Fig. 4a nur mit der am Strangprofilelement 12 angeordneten Endkappe 26. Insbesondere kann diese durch die vorhandenen Kopplungselemente 28 und/oder Führungselemente 30 einfach in das Strangprofilelement 12 eingeschoben werden. Fig. 4b shows a schematic representation of a lamp body 10 as in Fig. 4a In particular, this can be easily inserted into the extruded profile element 12 by the existing coupling elements 28 and / or guide elements 30.

Fig. 5 zeigt eine schematische Darstellung eines für eine Deckenleuchte ausgestalteten Leuchtenkörpers 10 mit einer Aufhängung 36 gemäß einem Ausführungsbeispiel der Erfindung. Fig. 5 shows a schematic representation of a designed for a ceiling light fixture body 10 with a suspension 36 according to an embodiment of the invention.

Claims (11)

  1. Lighting fixture (10), having an extruded profile element (12) with a first longitudinal extent in a longitudinal extent direction, which comprises a light outlet element (14) with at least one light outlet opening (16) arranged therein, the light outlet element (14) delimiting the lighting fixture (10) at least to some extent in a light outlet direction, wherein the extruded profile element (12) comprises two longitudinal side elements (18) arranged at least partly opposite each other along the longitudinal extent direction and counter to the light outlet direction on the light outlet element (14) and having a second longitudinal extent in the longitudinal extent direction, which at least partly delimit the lighting fixture (10) laterally along the longitudinal extent direction, the extruded profile element (12) having at least one open extruded profile end (12a) which delimits the extruded profile element (12) in its first longitudinal extent, the lighting fixture (10) comprising at least one end cap (26), which can be arranged on the at least one open extruded profile end (12a) of the extruded profile element (12),
    characterized in that
    the longitudinal side elements (18) each have at least one longitudinal side element end (18a), which delimits the respective longitudinal side element (18) in its second longitudinal extent, wherein the longitudinal side elements (18) are arranged on the light outlet element (14) in such a way that the longitudinal side element ends (18a) each have a spacing from the extruded profile end (12a), so that the end cap (26) can be arranged in a contacting manner on the longitudinal side element ends (18a) and on the light outlet element (14).
  2. Lighting fixture (10) according to Claim 1,
    characterized in that
    the extruded profile end (12a) and at least part of the end cap (26) arranged on the open extruded profile end (12a) form an end of the lighting fixture (10).
  3. Lighting fixture (10) according to one of the preceding claims,
    characterized in that
    the respective spacing of the longitudinal side element ends (18a) from the extruded profile end (12a) is at least as large as a thickness of the end cap (26) in a respective contacting area, in which the end cap (26) can be contacted by the respective longitudinal side element ends (18a), wherein the thickness of the end cap (26) is a dimension in the longitudinal extent direction of the extruded profile element (12) when the end cap (26) is arranged on the at least one open extruded profile end (12a).
  4. Lighting fixture (10) according to one of the preceding claims,
    characterized in that
    the extruded profile element (12) and the at least one end cap (26) are formed in such a way that the end cap (26) can be arranged with a form fit on the at least one open extruded profile end (12a).
  5. Lighting fixture (10) according to one of the preceding claims,
    characterized in that
    the at least one end cap (26) has at least one coupling element (28), by means of which the end cap (26) can be fixed to the extruded profile element (12).
  6. Lighting fixture (10) according to one of the preceding claims,
    characterized in that
    LEDs are arranged on the light outlet element (14) of the extruded profile element (12) in the area of the light outlet opening (16) of the light outlet element (14), in such a way that light from the LEDs can be emitted in the direction of the light outlet direction.
  7. Lighting fixture (10) according to one of the preceding claims,
    characterized in that
    the extruded profile element (12) has guide rails (20), which are arranged in the longitudinal extent direction and on the light outlet element (14) opposite to the light outlet direction.
  8. Lighting fixture (10) according to Claim 7,
    characterized in that
    the end cap (26) has at least one guide element (30), by means of which a circuit board inserted in between two guide rails (20) of the extruded profile element (12) can be at least partly covered.
  9. Lighting fixture (10) according to Claim 7 or 8, characterized in that
    at least one circuit board having LEDs arranged thereon is inserted between two guide rails (20), the LEDs being arranged on the circuit board in such a way that light can be emitted by the LEDs in a direction opposite to the light outlet direction.
  10. Method for producing a lighting fixture (10), comprising the steps:
    - extruding an extruded profile element (12) having a first longitudinal extent in a longitudinal extent direction, having a light outlet element (14) and having two longitudinal side elements (18) arranged at least partly opposite each other along the longitudinal extent direction and counter to a light outlet direction on the light outlet element (14) and having the first longitudinal extent in the longitudinal extent direction, the light outlet element (14) at least partly delimiting the lighting fixture (10) in the light outlet direction, and the longitudinal side elements (18) delimiting the lighting fixture (10) at least partly laterally along the longitudinal extent direction,
    - removing at least part of the light outlet element (14) of the extruded profile element (12), so that at least one light outlet opening (16) is produced in the light outlet element (14);
    - removing in each case of part of the longitudinal side elements (18) at at least one open extruded profile end (12a), so that these each have a second longitudinal extent which is delimited by a longitudinal side element end (18a) in each case, and so that the longitudinal side element ends (18a) each have a spacing from the extruded profile end (12a);
    - arranging an end cap (26) of the open extruded profile end (12a) in such a way that the said end cap contacts the light outlet element (14) and the longitudinal side element ends (18a).
  11. Method according to Claim 10, comprising the following further step:
    - before the arrangement of the end cap (26), removing part of the light outlet element 14) at the extruded profile end (12a) in accordance with a predefinable shape of a contour of the extruded profile end (12a).
EP13750704.2A 2012-11-16 2013-08-20 Lighting fixture and method for producing a lighting fixture Active EP2920513B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012220969.7A DE102012220969A1 (en) 2012-11-16 2012-11-16 LUMINAIRE BODY AND METHOD FOR PRODUCING A LUMINAIRE BODY
PCT/EP2013/067309 WO2014075825A1 (en) 2012-11-16 2013-08-20 Lighting fixture and method for producing a lighting fixture

Publications (2)

Publication Number Publication Date
EP2920513A1 EP2920513A1 (en) 2015-09-23
EP2920513B1 true EP2920513B1 (en) 2016-11-09

Family

ID=49000943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13750704.2A Active EP2920513B1 (en) 2012-11-16 2013-08-20 Lighting fixture and method for producing a lighting fixture

Country Status (3)

Country Link
EP (1) EP2920513B1 (en)
DE (1) DE102012220969A1 (en)
WO (1) WO2014075825A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT15737U1 (en) * 2016-11-28 2018-05-15 Zumtobel Lighting Gmbh Elongated light

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313080A1 (en) * 1993-04-21 1994-10-27 Heinrich Korte Head piece for a linear luminaire
DE102005016487A1 (en) * 2005-04-08 2006-10-12 Setolite Lichttechnik Gmbh Lamp with a tubular lighting unit, for halls and tents, has a housing composed of a center connector of different widths to hold longitudinal side components in a variety of lamp housing width dimensions
DE202008006765U1 (en) * 2008-05-17 2008-07-31 Fkb Gmbh recessed light
JP4447644B2 (en) * 2008-07-15 2010-04-07 シーシーエス株式会社 Light irradiation device
US8915611B2 (en) * 2011-04-08 2014-12-23 Lunera Lighting, Inc. Light well providing wide angle up lighting in an LED luminaire
JP2012243393A (en) * 2011-05-13 2012-12-10 Toshiba Lighting & Technology Corp Lighting fixture

Also Published As

Publication number Publication date
DE102012220969A1 (en) 2014-05-22
WO2014075825A1 (en) 2014-05-22
EP2920513A1 (en) 2015-09-23

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