EP2647902A2 - Luminaire with integrated heatsink - Google Patents
Luminaire with integrated heatsink Download PDFInfo
- Publication number
- EP2647902A2 EP2647902A2 EP13158581.2A EP13158581A EP2647902A2 EP 2647902 A2 EP2647902 A2 EP 2647902A2 EP 13158581 A EP13158581 A EP 13158581A EP 2647902 A2 EP2647902 A2 EP 2647902A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- luminaire
- housing
- leds
- direct
- lighting
- 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.)
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 25
- 238000005286 illumination Methods 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 6
- 238000004512 die casting Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
- F21S6/008—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting with a combination of direct and indirect lighting
-
- 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
-
- 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
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
-
- 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
-
- 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
- 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
- F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
-
- 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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
- F21V21/116—Fixing lighting devices to arms or standards
-
- 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
- F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
-
- 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
- F21V7/04—Optical design
- F21V7/048—Optical design with facets structure
-
- 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 integration of the heat sink with the luminaire housing substantially simplifies the design of the prior art.
- the lighting structure is simpler, because separate frame and fasteners for attaching the heat sink omitted in a housing.
- the housing is formed of an aluminum die-cast.
- Aluminum has a very high specific thermal conductivity with comparably low weight. Therefore, this material is particularly suitable for the formation of the housing with integrated heat sink according to the present invention.
- the LEDs for the direct and / or indirect component are each arranged in a recess of the housing.
- the light exit surface may be formed by the outer edge of the recess and is preferably provided with a transparent cover to form the lamp dust, moisture or even jet water protected.
- the lamp is designed as a floor lamp and the housing has a receptacle for a lamppost.
- a snap-in and / or plug-in connection between the lamp and the lamppost is preferred because this allows the lamp to be easily assembled during installation on site.
- an opening can also be provided in the luminaire housing in order to lay a through-wiring from the mast into the luminaire housing.
- the mast reception is approximately at the center of gravity of the housing, i. not more than about 200 mm from the center of gravity. In this way, the luminaire housing can be stably stored even at relatively high weight on a single mast.
- the LEDs are the direct illumination on a planar board, on which the LEDs are provided in a plurality of rows and columns, wherein the board rests on ribs of the housing.
- the ribs preferably extend parallel to the rows or columns of the LEDs in order to ensure a uniform thermal coupling of the LEDs to the housing acting as a heat sink.
- the LEDs in the direct illumination and / or indirect illumination can each be combined together on a board with a, preferably segmented, reflector assembly in a module which is inserted into the luminaire housing.
- the structure with an integrated module facilitates the installation of the luminaire. Furthermore, it is possible to provide different modules within the same luminaire series for different light distributions of the luminaire.
- the housing 6 of the luminaire is designed as an integral luminaire housing, which is seen in a perspective view from the light exit side 2 forth as a single component without electrical equipment and other attachments in FIG. 3 is shown.
- the housing 6 is formed of a solid die-cast aluminum.
- the housing 6 integrates two functions of the lamp in one element. On the one hand, it provides a receptive surface and protects various lighting components, in particular the light sources and the reflectors. On the other hand, it simultaneously represents the heat sink of the luminaire. For this purpose, cooling fins 8 and 10 are provided on the luminaire housing 6 on two sides.
- the luminaire housing can, as in FIG. 1 shown to have a cover 12. However, this is cut out in the area of the cooling fins 8 in order to allow cooling by air convection. Furthermore, there are cutouts in the cover 12 in the region of the light exit surface 2 in order to decouple the light from the housing.
- the reflector assembly 20 has a plurality of approximately funnel-shaped individual reflectors, which are each associated with one of the LEDs 18.
- an opening 28 can be seen in the lamp housing, which forms a connection from the upper side of the lamp to a region of a mast receptacle 32. Through this opening 28, a wiring for the electrical contacting of the LED disc 24 can be laid.
- the entire mast receptacle 32 is arranged in the horizontal plane approximately in the center of gravity of the housing, so that the forces acting on the connection through the housing weight tilting forces are minimized.
- the mast receptacle 32 according to the illustrated embodiment is displaced approximately 100 mm apart from the center of gravity of the housing in the direction of the indirect illumination.
- the mast receptacle is no more than about 200 mm from the center of gravity in a horizontal section of the luminaire.
- embodiments of the luminaire according to the invention can also be designed as a pendant luminaire for hanging from a room ceiling.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft Leuchten, insbesondere Innenraumleuchten, welche einen Lichtanteil zur Direktbeleuchtung des Raums nach unten und einen Lichtanteil zur Indirektbeleuchtung des Raums nach oben abgeben. Solche Leuchte sind beispielsweise als Steh- oder Pendelleuchten ausgebildet.The present invention relates to lights, in particular interior lights, which emit a portion of light for direct lighting of the room down and a proportion of light for indirect lighting of the room upwards. Such light are designed for example as floor or pendant lights.
Eine Leuchte der eingangs genannten Art ist beispielsweise in
Die Integration von Kühlkörpern zur Kühlung der im Betrieb sich erwärmenden LEDs ist bei diesen Leuchten verhältnismäßig aufwendig. Insbesondere ist bei einem flachen Leuchtendesign, welches für Steh- und Pendelleuchten wünschenswert ist, häufig nicht genug Platz für Kühlkörper, um alle Leuchtmittel als LEDs ausbilden zu können.The integration of heat sinks for cooling the LEDs, which heat up during operation, is relatively expensive in these luminaires. In particular, in a flat lighting design, which is desirable for floor and pendant lights, often not enough space for heatsink to form all bulbs as LEDs can.
Aufgabe der vorliegenden Erfindung ist es für eine Leuchte der eingangs genannten Art mit LEDs als Leuchtmittel die Kühlmöglichkeiten konstruktiv zu verbessern.Object of the present invention is to improve the cooling options constructively for a lamp of the type mentioned with LEDs as bulbs.
Gelöst wird die Aufgabe durch eine Leuchte, insbesondere Stehleuchte oder Pendelleuchte, welche zwei Lichtaustrittsflächen auf gegenüberliegenden Seiten eines Leuchtengehäuses aufweist, um Licht zur Direktbeleuchtung und zur Indirektbeleuchtung abzugeben, wobei Leuchtmittel in Form von LEDs zur Erzeugung der Direktbeleuchtung und der Indirektbeleuchtung in thermischen Kontakt mit dem Leuchtengehäuse in diesem angeordnet sind, und wobei das Leuchtengehäuse als integraler Körper aus einem massiven wärmeleitfähigen Material mit einer spezifischen Wärmeleitfähigkeit von mehr als 30 W/Km, vorzugsweise mehr als 100 W/Km gebildet ist und welcher auf Abschnitten seiner Oberfläche Kühlrippen aufweist.The object is achieved by a lamp, in particular floor lamp or pendant lamp, which has two light exit surfaces on opposite sides of a lamp housing to emit light for direct lighting and indirect lighting, with light sources in the form of LEDs for generating direct lighting and indirect lighting in thermal contact with the Luminaire housing are arranged in this, and wherein the lamp housing is formed as an integral body of a solid thermally conductive material having a specific thermal conductivity of more than 30 W / Km, preferably more than 100 W / Km and which has on portions of its surface cooling fins.
Bei der erfindungsgemäßen Leuchte wird das gesamte Gehäuse als ein großer Kühlkörper benutzt, an dem die LEDs thermisch direkt oder indirekt angekoppelt sind. Dadurch steht auch für ein verhältnismäßig flaches Gehäuse, wie es für Innenraumleuchten der eingangs genannten Art wünschenswert ist, genügend Raum zur Verfügung, um einen groß dimensionierten Kühlkörper zu bilden, der es auch ermöglicht, sämtliche Leuchtmittel in der Leuchte, d.h. sowohl für den Direkt- als auch für den Indirektanteil, als LEDs auszubilden.In the luminaire according to the invention, the entire housing is used as a large heat sink, to which the LEDs are thermally coupled directly or indirectly. Thereby stands even for a relatively flat housing, as is desirable for interior lighting of the type mentioned, enough space available to form a large-sized heat sink, which also allows all lamps in the lamp, ie both for the direct as well for the indirect portion, to form as LEDs.
Ferner ist durch die Integration des Kühlkörpers mit dem Leuchtengehäuse eine wesentliche bauliche Vereinfachung gegenüber dem Stand der Technik gegeben. Der Leuchtenaufbau ist einfacher, weil separate Rahmen und Befestigungselemente zum Befestigen der Kühlkörper in einem Gehäuse entfallen.Furthermore, the integration of the heat sink with the luminaire housing substantially simplifies the design of the prior art. The lighting structure is simpler, because separate frame and fasteners for attaching the heat sink omitted in a housing.
Gemäß einer bevorzugten Ausführungsform ist das Gehäuse aus einem Aluminium-Druckguss gebildet. Aluminium weist eine sehr hohe spezifische Wärmeleitfähigkeit auf bei noch vergleichbar geringem Gewicht. Daher eignet sich dieses Material besonders zur Ausbildung des Gehäuses mit integriertem Kühlkörper gemäß der vorliegenden Erfindung.According to a preferred embodiment, the housing is formed of an aluminum die-cast. Aluminum has a very high specific thermal conductivity with comparably low weight. Therefore, this material is particularly suitable for the formation of the housing with integrated heat sink according to the present invention.
Gemäß einer bevorzugten Ausführungsform sind die Kühlrippen auf zwei gegenüberliegenden Seiten des Leuchtengehäuses angeordnet. Die Kühlrippen können jeweils neben einer der Lichtaustrittsflächen zur Indirekt- bzw. Direktbeleuchtung angeordnet sein. Durch die Nutzung beider Seiten der Leuchte steht eine ausreichende Oberfläche zur Verfügung, um die für die Kühlung notwendige Anzahl von Kühlrippen unterzubringen. Ferner trägt auch die Oberfläche des Gehäuses ohne Kühlrippen noch zur Kühlung bei.According to a preferred embodiment, the cooling fins are arranged on two opposite sides of the lamp housing. The cooling fins can each be arranged next to one of the light exit surfaces for indirect or direct lighting. By using both sides of the luminaire is a sufficient surface available to accommodate the necessary number of cooling fins for cooling. Furthermore, the surface of the housing without cooling fins also contributes to the cooling.
Gemäß einer bevorzugten Ausführungsform sind die Lichtaustrittsflächen für die Direkt- und Indirektbeleuchtung auf den zwei gegenüberliegenden Seiten des Gehäuses versetzt zueinander angeordnet. Dies ermöglicht einerseits ein flaches Leuchtendesign und andererseits ermöglicht es noch genügend Platz, um Kühlrippen jeweils neben den Lichtaustrittsflächen unterzubringen.According to a preferred embodiment, the light exit surfaces for the direct and indirect illumination on the two opposite sides of the housing are arranged offset to one another. On the one hand, this allows a flat luminaire design and, on the other hand, it still allows enough space to accommodate cooling fins next to the light exit surfaces.
Gemäß einer bevorzugten Ausführungsform sind die LEDs für die Direkt- und/oder Indirektbeleuchtung jeweils auf Platinen angeordnet, die in direktem thermischen Kontakt mit dem Leuchtengehäuse an diesem befestigt sind. Die Platinen können flächig an dem Gehäuse anliegen oder in Vertiefungen des Gehäuses integriert sein. Gegebenenfalls sind Reflektoren in Vertiefungen des Gehäuses vorgesehen, um das Licht der LEDs in die gewünschte Richtung zur Lichtaustrittsfläche des Indirekt- oder Direktlichtanteils umzulenken.According to a preferred embodiment, the LEDs for the direct and / or indirect lighting are each arranged on boards, which are fastened in direct thermal contact with the lamp housing at this. The boards can lie flat against the housing or be integrated in recesses of the housing. Optionally, reflectors are provided in recesses of the housing to redirect the light of the LEDs in the desired direction to the light exit surface of the indirect or direct light component.
Gemäß einer bevorzugten Ausführungsform sind die LEDs für die Direkt- und die Indirektbeleuchtung in einem vertikalen Schnitt (z.B. parallel zu einem Leuchtenmast oder einer Pendellabhängung) der Leuchte zueinander versetzt angeordnet. Dadurch wird der Wärmeeintrag in das als Kühlkörper ausgebildete Gehäuse verteilt und es steht jeweils genügend Platz auf der den LEDs gegenüberliegenden Seite des Gehäuses zur Anordnung der Kühlrippen zur Verfügung.According to a preferred embodiment, the LEDs for the direct and indirect lighting are arranged offset from one another in a vertical section (for example parallel to a lamp post or pendulum suspension) of the luminaire. Thereby, the heat input is distributed in the housing designed as a heat sink and there is enough space on the opposite side of the LEDs to the housing for the arrangement of the cooling fins available.
Gemäß einer bevorzugten Ausführungsform sind die LEDs für den Direkt- und/oder Indirektanteil jeweils in einer Vertiefung des Gehäuses angeordnet. Die Lichtaustrittsfläche kann durch den äußeren Rand der Vertiefung gebildet sein und ist vorzugsweise mit einer transparenten Abdeckung versehen, um die Leuchte staub-, feuchtigkeits- oder sogar strahlwassergeschützt auszubilden.According to a preferred embodiment, the LEDs for the direct and / or indirect component are each arranged in a recess of the housing. The light exit surface may be formed by the outer edge of the recess and is preferably provided with a transparent cover to form the lamp dust, moisture or even jet water protected.
Gemäß einer bevorzugten Ausführungsform sind den LEDs einzeln oder gruppenweise Reflektoren zugeordnet. Beispielsweise können die LEDs auf einer ebenen Platine in Reihen und Spalten angeordnet sein, wobei den LEDs einzeln oder einer Gruppe von benachbarten LEDs jeweils ein Reflektorsegment zugeordnet ist, welches Reflexionsflächen aufweist, die in der Art eines Trichters um die LEDs oder die Gruppe von LEDs angeordnet sind. Die Reflexionsflächen können zur Fokussierung oder Aufweitung der von den LEDs abgegebenen Lichtstrahlung ausgebildet sein. Alternativ kann auch eine LED-Gruppe einem größeren LED-Reflektor zugeordnet sein, der für den gesamten Anteil der Indirektbeleuchtung oder Direktbeleuchtung sorgt. Dabei können die LEDs auch auf einer Platine angeordnet sein, die vertikal zu der Lichtaustrittsfläche des Indirektlichtanteils oder Direktlichtanteils angeordnet ist. Die Lichtlenkung erfolgt über einen vorzugsweise flachen Reflektor mit mehreren Facetten, der sich bis zur Lichtaustrittsfläche des Indirektlichtanteils oder des Direktlichtanteils erstreckt.According to a preferred embodiment, the LEDs are associated with reflectors individually or in groups. For example, the LEDs can be arranged on a planar board in rows and columns, wherein the LEDs individually or a group of adjacent LEDs each having a reflector segment is associated, which has reflection surfaces arranged in the manner of a funnel around the LEDs or the group of LEDs are. The reflection surfaces can be designed to focus or widen the light radiation emitted by the LEDs. Alternatively, an LED group can be assigned to a larger LED reflector, which provides the entire proportion of indirect or direct lighting. In this case, the LEDs can also be arranged on a circuit board, which is arranged vertically to the light exit surface of the indirect light component or direct light component. The light is deflected by a preferably flat reflector with several facets, which extends to the light exit surface of the indirect light component or the direct light component.
Gemäß einer bevorzugten Ausführungsform ist die Leuchte als eine Stehleuchte ausgebildet und das Gehäuse weist eine Aufnahme für einen Leuchtenmast auf. Insbesondere ist eine Rast- und/oder Steck-Verbindung zwischen der Leuchte und dem Leuchtenmast bevorzugt, weil sich dadurch die Leuchte bei der Montage vor Ort leicht zusammenbauen lässt. Im Bereich der Mastaufnahme kann im Leuchtengehäuse ferner eine Öffnung vorgesehen sein, um eine Durchgangsverdrahtung von dem Mast in das Leuchtengehäuse zu verlegen.According to a preferred embodiment, the lamp is designed as a floor lamp and the housing has a receptacle for a lamppost. In particular, a snap-in and / or plug-in connection between the lamp and the lamppost is preferred because this allows the lamp to be easily assembled during installation on site. In the area of the mast receptacle, an opening can also be provided in the luminaire housing in order to lay a through-wiring from the mast into the luminaire housing.
Gemäß einer bevorzugten Ausführungsform ist die Mastaufnahme etwa im Schwerpunkt des Gehäuses, d.h. nicht mehr als etwa 200 mm vom Schwerpunkt entfernt, angeordnet. Auf diese Weise lässt sich das Leuchtengehäuse selbst bei verhältnismäßig hohem Gewicht stabil auf einem einzelnen Mast lagern.According to a preferred embodiment, the mast reception is approximately at the center of gravity of the housing, i. not more than about 200 mm from the center of gravity. In this way, the luminaire housing can be stably stored even at relatively high weight on a single mast.
Gemäß einer bevorzugten Ausführungsform sind die LEDs die Direktbeleuchtung auf einer ebenen Platine angeordnet, auf der die LEDs in mehreren Reihen und Spalten vorgesehen sind, wobei die Platine auf Rippen des Gehäuses anliegt. Die Rippen erstrecken sich vorzugsweise parallel zu den Reihen oder Spalten der LEDs, um eine gleichmäßige thermische Ankopplung der LEDs an das als Kühlkörper wirkende Gehäuse zu gewährleisten.According to a preferred embodiment, the LEDs are the direct illumination on a planar board, on which the LEDs are provided in a plurality of rows and columns, wherein the board rests on ribs of the housing. The ribs preferably extend parallel to the rows or columns of the LEDs in order to ensure a uniform thermal coupling of the LEDs to the housing acting as a heat sink.
Gemäß einer bevorzugten Ausführungsform können die LEDs in der Direktbeleuchtung und/oder Indirektbeleuchtung jeweils zusammen auf einer Platine mit einer, vorzugsweise segmentierten, Reflektorbaugruppe in einem Modul zusammengefasst sein, welches in das Leuchtengehäuse eingesetzt wird. Der Aufbau mit einem integrierten Modul erleichtert die Montage der Leuchte. Ferner ist es möglich, unterschiedliche Module innerhalb der gleichen Leuchtenserie für unterschiedliche Lichtverteilungen der Leuchte vorzusehen.According to a preferred embodiment, the LEDs in the direct illumination and / or indirect illumination can each be combined together on a board with a, preferably segmented, reflector assembly in a module which is inserted into the luminaire housing. The structure with an integrated module facilitates the installation of the luminaire. Furthermore, it is possible to provide different modules within the same luminaire series for different light distributions of the luminaire.
Weitere Merkmale und Vorteile der vorliegenden Erfindung werden anhand der nachfolgenden Beschreibung einer bevorzugten Ausführungsform in Verbindung mit den beigefügten Figuren deutlich. In den Figuren ist Folgendes dargestellt:
- Figur 1
- zeigt eine perspektivische Ansicht einer Stehleuchte auf die Lichtaustrittsseite der Direktbeleuchtung.
Figur 2- zeigt eine perspektivische Ansicht der Leuchte nach
Figur 1 auf die Lichtaustrittsfläche der Indirektbeleuchtung. - Figur 3
- zeigt eine perspektivische Ansicht des Leuchtengehäuses als einzelnes Bauteil auf die Lichtaustrittsseite der Direktbeleuchtung.
- Figur 4
- zeigt einen Ausschnitt des Leuchtengehäuse als einzelnes Bauteil im Bereich der Lichtaustrittsfläche der Indirektbeleuchtung.
Figur 5- zeigt einen Querschnitt durch die Leuchte entlang der Linie 5-5 in
Figur 3 mit montierter LED-Platine und Reflektorbaugruppe. Figur 6- zeigt einen Querschnitt durch die Leuchte entlang der Linie 6-6 in
.Figur 5 Figur 7- zeigt einen Querschnitt durch die Leuchte entlang der Linie 7-7 in
.Figur 5
- FIG. 1
- shows a perspective view of a floor lamp on the light exit side of the direct lighting.
- FIG. 2
- shows a perspective view of the light after
FIG. 1 on the light exit surface of the indirect lighting. - FIG. 3
- shows a perspective view of the lamp housing as a single component on the light exit side of the direct lighting.
- FIG. 4
- shows a section of the luminaire housing as a single component in the region of the light exit surface of the indirect lighting.
- FIG. 5
- shows a cross section through the lamp along the line 5-5 in
FIG. 3 with mounted LED board and reflector assembly. - FIG. 6
- shows a cross section through the lamp along the line 6-6 in
FIG. 5 , - FIG. 7
- shows a cross section through the lamp along the line 7-7 in
FIG. 5 ,
Bezug nehmend auf die
Das Gehäuse 6 der Leuchte ist als ein integrales Leuchtengehäuse ausgebildet, welches in perspektivischer Ansicht von der Lichtaustrittsseite 2 her gesehen als Einzelbauteil ohne elektrische Einrichtungen und sonstige Anbauteile in
Das Leuchtengehäuse kann, wie in
Bezug nehmend auf
Die Reflektorbaugruppe 20 weist eine Vielzahl von etwa trichterförmigen Einzelreflektoren auf, die jeweils einer der LEDs 18 zugeordnet sind.The
In einem Bereich neben der Lichtaustrittsfläche 2 für den Direktanteil der Beleuchtung sind auf der gegenüberliegenden Seite des Gehäuses 6 die Leuchteneinrichtungen für den Indirektlichtanteil vorgesehen. Bezug nehmend auf die
In der Vertiefung für die Einbauten der Indirektbeleuchtung, wie in
Neben der Lichtaustrittsfläche 4 sind auch auf der Gehäuseoberseite Kühlrippen 10 vorgesehen. Diese wirken zusammen mit den Kühlrippen 8 auf der Unterseite, um die LEDs auf der Scheibe 24 und auf der Platine 16 zu kühlen. Dadurch, dass das Gehäuse 6 integral aus einem Aluminium-Druckguss gebildet ist, sind alle mit dem Gehäuse 6 verbundenen wärmeentwickelnden Bauteile thermisch verbunden, so dass die Wärme über die große Oberfläche abgeführt werden kann.In addition to the light exit surface 4, cooling
Es ist dabei zu beachten, dass nicht nur die Kühlrippen 8 und 10 für die Kühlung verantwortlich sind, sondern dass auch die großen Oberflächenbereiche auf der Leuchtenoberseite gegenüber der Lichtaustrittsfläche 2 zur Kühlung beitragen.It should be noted that not only the
Wie in den
Zahlreiche Variationen der vorhergehend beschriebenen bevorzugten Ausführungsformen sind im Rahmen der Erfindung, wie sie in den Ansprüchen definiert ist, möglich. Insbesondere können Ausführungsformen der erfindungsgemäßen Leuchte auch als Pendelleuchte zum Abhängen von einer Raumdecke ausgebildet sein. Es können mehrere Lichtaustrittsflächen zur Direktbeleuchtung oder Indirektbeleuchtung vorhanden sein, wobei alle den Lichtaustrittsflächen zugeordneten LEDs erfindungsgemäß an dem einen integralen Gehäuse thermisch angekoppelt sind.Numerous variations of the preferred embodiments described above are possible within the scope of the invention as defined in the claims. In particular, embodiments of the luminaire according to the invention can also be designed as a pendant luminaire for hanging from a room ceiling. There may be a plurality of light exit surfaces for direct lighting or indirect lighting, wherein all the light emitting surfaces associated LEDs are inventively thermally coupled to the one integral housing.
- 22
- Lichtaustrittsfläche für DirektbeleuchtungLight exit surface for direct lighting
- 44
- Lichtaustrittsfläche für IndirektbeleuchtungLight exit surface for indirect lighting
- 66
- Gehäusecasing
- 88th
- Kühlrippencooling fins
- 1010
- Kühlrippencooling fins
- 1212
- Abdeckungcover
- 1414
- Ripperib
- 1616
- Platinecircuit board
- 1818
- LEDLED
- 2020
- Reflektorreflector
- 2424
- LED-ScheibeLED disc
- 2626
- Reflektorreflector
- 2828
- Öffnungopening
- 3232
- Mastaufnahmepole diameter
- 3434
- Stiftpen
- 3535
- Flügelelementwing element
- 3636
- Mastmast
Claims (13)
wobei Leuchtmittel in Form von LEDs (18; 24) zur Erzeugung der Direktbeleuchtung und der Indirektbeleuchtung in thermischen Kontakt mit dem Leuchtengehäuse (6) in diesem angeordnet sind, und
wobei das Leuchtengehäuse (6) als integraler Körper aus einem massiven wärmeleitfähigen Material mit einer spezifischen Wärmeleitfähigkeit von mehr als 30 W/Km, vorzugsweise mehr als 100 W/Km gebildet ist und welches auf Abschnitten seiner Oberfläche Kühlrippen (8; 10) aufweist.Luminaire, in particular floor lamp or pendant luminaire, which has two light exit surfaces (2, 4) on two opposite sides of a luminaire housing (6) in order to emit light for direct illumination and for indirect illumination,
wherein lighting means in the form of LEDs (18; 24) for generating the direct lighting and the indirect lighting in thermal contact with the lamp housing (6) are arranged therein, and
wherein the luminaire housing (6) is formed as an integral body of a solid thermally conductive material having a specific thermal conductivity of more than 30 W / Km, preferably more than 100 W / Km and which has cooling ribs (8; 10) on portions of its surface.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012102973A DE102012102973A1 (en) | 2012-04-05 | 2012-04-05 | Luminaire with integrated heat sink |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2647902A2 true EP2647902A2 (en) | 2013-10-09 |
EP2647902A3 EP2647902A3 (en) | 2015-07-22 |
EP2647902B1 EP2647902B1 (en) | 2019-05-08 |
Family
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Family Applications (1)
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EP13158581.2A Active EP2647902B1 (en) | 2012-04-05 | 2013-03-11 | Luminaire with integrated heatsink |
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EP (1) | EP2647902B1 (en) |
DE (1) | DE102012102973A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3199864A1 (en) * | 2016-01-29 | 2017-08-02 | Zumtobel Lighting GmbH | Heat sink for a lamp and a lamp with such a heat sink |
EP3211297A1 (en) * | 2016-02-24 | 2017-08-30 | Siteco Beleuchtungstechnik GmbH | Lighting module in particular for road lights |
EP3249287A1 (en) | 2016-05-25 | 2017-11-29 | OSRAM GmbH | A reflector for lighting devices, corresponding device and method |
EP3282173A4 (en) * | 2015-04-10 | 2018-09-12 | Feng Li | Led illumination lamp with integrated heat dissipation structure |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014000559A1 (en) * | 2014-01-15 | 2015-07-16 | Trs-Star Gmbh | Floor lamp with control gear housing and floor lamp set |
DE102014000558B3 (en) * | 2014-01-15 | 2015-07-16 | Trs-Star Gmbh | Floor lamp with bifunctional head |
DE102015115701A1 (en) * | 2015-09-17 | 2017-03-23 | PERFORMANCE IN LIGHTING GmbH | lamp |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010003751U1 (en) | 2010-03-17 | 2011-07-26 | Zumtobel Lighting Gmbh | Luminaire for generating a variable indirect lighting |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US7766511B2 (en) * | 2006-04-24 | 2010-08-03 | Integrated Illumination Systems | LED light fixture |
DE202007014667U1 (en) * | 2007-10-19 | 2009-02-26 | Zumtobel Lighting Gmbh | Bay luminaire |
DE102009016256A1 (en) * | 2009-04-03 | 2010-10-14 | Vishay Electronic Gmbh | Exterior lighting unit |
CN102045910A (en) * | 2009-10-09 | 2011-05-04 | 鸿富锦精密工业(深圳)有限公司 | Light-emitting diode (LED) lighting device |
DE102010044353A1 (en) * | 2010-09-03 | 2012-03-08 | Herbert Waldmann Gmbh & Co. Kg | Floor or table lamp |
-
2012
- 2012-04-05 DE DE102012102973A patent/DE102012102973A1/en not_active Ceased
-
2013
- 2013-03-11 EP EP13158581.2A patent/EP2647902B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010003751U1 (en) | 2010-03-17 | 2011-07-26 | Zumtobel Lighting Gmbh | Luminaire for generating a variable indirect lighting |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3282173A4 (en) * | 2015-04-10 | 2018-09-12 | Feng Li | Led illumination lamp with integrated heat dissipation structure |
EP3199864A1 (en) * | 2016-01-29 | 2017-08-02 | Zumtobel Lighting GmbH | Heat sink for a lamp and a lamp with such a heat sink |
AT16563U1 (en) * | 2016-01-29 | 2020-01-15 | Zumtobel Lighting Gmbh | Heat sink for a lamp, and lamp with such a heat sink |
EP3211297A1 (en) * | 2016-02-24 | 2017-08-30 | Siteco Beleuchtungstechnik GmbH | Lighting module in particular for road lights |
EP3249287A1 (en) | 2016-05-25 | 2017-11-29 | OSRAM GmbH | A reflector for lighting devices, corresponding device and method |
Also Published As
Publication number | Publication date |
---|---|
EP2647902A3 (en) | 2015-07-22 |
DE102012102973A1 (en) | 2013-10-10 |
EP2647902B1 (en) | 2019-05-08 |
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