EP2539629B1 - Recessed light having a base body and a dome-shaped reflector - Google Patents

Recessed light having a base body and a dome-shaped reflector Download PDF

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Publication number
EP2539629B1
EP2539629B1 EP11704985.8A EP11704985A EP2539629B1 EP 2539629 B1 EP2539629 B1 EP 2539629B1 EP 11704985 A EP11704985 A EP 11704985A EP 2539629 B1 EP2539629 B1 EP 2539629B1
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EP
European Patent Office
Prior art keywords
reflector
recessed luminaire
retaining ring
light source
heat sink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11704985.8A
Other languages
German (de)
French (fr)
Other versions
EP2539629A2 (en
Inventor
Bernd Oehle
Stephan Pieper
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.)
Zumtobel Lighting GmbH Germany
Original Assignee
Zumtobel Lighting GmbH Germany
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Publication date
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Application filed by Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Germany
Publication of EP2539629A2 publication Critical patent/EP2539629A2/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
    • F21V5/00—Refractors for light sources
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/14—Bayonet-type fastening
    • 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
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • 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

  • Recessed luminaires of the type described above are commonly used in suspended ceiling systems. They are here sunk in a circular opening of the suspended ceiling sunk. The assembly takes place for example by means of a mounting ring, which is first fixed to the ceiling. Subsequently, a unit consisting of light source carrier and reflector can be attached to the mounting ring. The light emitted by the light source is then emitted substantially vertically downwards via the reflector.
  • a downlight which allows the attachment of such additional optical components.
  • a retaining ring is provided which is fixed to the outer periphery of a front flange of the reflector. This ring allows the insertion of an optical element, such as a transparent disc.
  • the present invention has for its object to provide an alternative to the previously described known embodiment, a solution for mounting an additional component in a downlight.
  • the light source is arranged in a recess of the heat sink, wherein in the recess further a pot-like head reflector is arranged and the additional optical element between the reflector and head reflector is clamped and the head reflector is fixed by means of the retaining ring.
  • the additional optical element is not attached to the light exit opening of the reflector, but instead stored between the retaining ring or base body and reflector, more precisely between the head reflector and the reflector. There it is fixed when joining the two elements, or jammed, so that a reliable support is guaranteed.
  • the solution according to the invention would also open up the possibility, in addition to the light exit opening of the reflector to arrange further additional components. For this purpose, in turn, the solution known from the prior art could be used.
  • the connecting device between retaining ring and reflector is preferably formed by a screw connection or a bayonet connection. This allows easy joining of both elements. A release of the connection, for example, to replace the additional optical element, is readily possible.
  • the installation of the recessed luminaire in a ceiling is preferably again via a mounting ring, which is provided for attachment in the ceiling opening.
  • the assembly is then fixed consisting of base body and reflector, which in turn preferably a screw or Bayonet connection is provided.
  • the mounting ring may have latching means for latching or jamming with the ceiling, which are preferably provided in a support area with a friction increasing element or with a corresponding coating. A rotation of the downlight relative to the ceiling is thereby prevented.
  • FIGS. 1 and 2 show first views of the generally provided with the reference numeral 1 recessed luminaire according to the invention in the fully assembled state. It is a so-called downlight, which is to be mounted in the circular opening of a suspended ceiling.
  • a special feature in the present case is that the support elements 57 are provided with a friction-increasing element 58 or a coating. It may be, for example, a rubber ring or a corresponding plugged element made of rubber or plastic, by which the friction with the surface of the ceiling is significantly increased. As a result, an unintentional rotation of the mounting ring 50 and ultimately the entire lamp is prevented from the ceiling.
  • the actual lighting unit is mounted as already mentioned.
  • this consists on the one hand of a base body and on the other hand of a dome-shaped reflector.
  • a modular design of the luminaire according to the invention is thereby created, which makes it possible to use reflectors of different types and also to use optical elements for influencing the light output in a simple manner.
  • the base body is in this case formed by a cylinder-like heat sink 10, which serves in particular to support and cool the light source.
  • the light source is formed in particular by an LED module 15, which has a plurality of LEDs arranged on a circuit board.
  • This board 15 is disposed in a recess of the heat sink 10 and preferably attached directly to the heat sink to allow a good heat transfer.
  • the heat sink 10, which has a plurality of cooling fins 11 which extend from a massive central region 12 to the side, is for this purpose formed on one side with a slightly tapered recess, at the bottom of the support surface is formed for the LED board.
  • a dome-shaped plastic element 17 and a dome-shaped head reflector 18 are then also arranged.
  • the head reflector 18, which in further views in the FIGS. 7a and 7b is shown here serves to effectively direct the light emitted by the LEDs in a large spatial area light to the bottom.
  • this head reflector 18 consists of a relatively flexible plastic material, which has been deep-drawn into the appropriate shape.
  • FIGS. 8a and 8b show further views of this retaining ring 20, which is preferably formed of plastic material and fixed in the screwed on the heat sink 10 state, the plastic part 17 with the head reflector 18 clamped.
  • Another essential function of the retaining ring 20 is to provide a releasable connection for the actual dome-shaped reflector 25 of the lamp 1.
  • a bayonet connection between the retaining ring 20 and reflector 25 is provided.
  • the reflector in the FIGS. 9a and 9b is shown in detail, this has on the outside of the reflector wall three hooks 26, which form a bayonet connection with corresponding guide projections 22 on the retaining ring 20. This allows a simple and quick attachment of the reflector 25 to the heat sink 10, alternatively, a screw connection would be conceivable.
  • connection - in the present case, the bayonet connection - between the retaining ring 20 and the reflector 25 is formed such that when attaching the reflector 25 optical elements can be inserted and fixed to influence the light output.
  • a homogenization of the light output is to be achieved or it is desired that the individual LEDs of the LED board are no longer individually perceptible.
  • an optical unit consisting of a plastic disk 30 and a light-scattering film 31 arranged in front of it is mounted. Both elements can - as shown below - now be inserted before fixing the reflector 25 to the retaining ring 20 in the ring 20. If subsequently the reflector 25 is fixed by means of the bayonet connection, this simultaneously leads to a fixation of the optical elements 30, 31.
  • the plastic part 17 and the head reflector 18 are placed on the heat sink 10 with the attached LED module. Both elements are then fixed by means of the retaining ring 20, which is screwed by the screws 21 onto the heat sink 10, so that the in FIG. 5 shown arrangement results.
  • the optical elements that is, the scattering film 31 and the plastic disk 30 are then inserted into the retaining ring 20.
  • the reflector 25 is placed on the retaining ring 20 and rotated in order to achieve a catch on the bayonet connection.
  • FIG. 6 illustrated assembly consisting of heat sink 10 and reflector 25 is then attached to the mounting ring 50 as described initially. Again, a connection is again using a bayonet lock, for which the reflector 25 has on its outer side further protruding pin 27, which cooperate with the corresponding guideways 52 on the mounting ring.
  • the reflector 25 thus represents the link between mounting ring 50 and heat sink 10.
  • the inventive concept described above namely to clamp the optical elements for influencing the light output between the head reflector and the dome reflector, is not limited to the illustrated disk-like optical elements. It would also be conceivable, for example, to arrange luminaire screens or comparable elements in a corresponding manner. Furthermore, in the case of disk-like elements, light-influencing elements with prismatic structures or the like could also be used.
  • FIGS. 10 to 12 illustrated further embodiments of recessed luminaires according to the invention, in which different reflectors were used in each case.
  • the figures show that the appearance of the luminaire and also its light output can be influenced by the replacement of the reflectors. So is the variant of FIGS. 10a to 10c the reflector 25 designed higher, resulting in a more concentrated light output to the bottom out.
  • the variants of Figures 11 and 12 correspond to the first and second embodiments, but here has the reflector 25 on the bottom no peripheral frame. In this so-called frameless variant of the mounting ring is designed slightly different, since it is now either plastered after installation or is attached to the ceiling from the top.

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

Description

Die vorliegende Erfindung betrifft eine Einbauleuchte gemäß dem Oberbegriff des Anspruchs 1, welche einen Basiskörper zur Halterung einer Lichtquelle sowie einen domförmigen Reflektor aufweist, der über eine Verbindungseinrichtung lösbar an dem Basiskörper befestigt ist. Insbesondere betrifft die vorliegende Erfindung ein sogenanntes Downlight.The present invention relates to a recessed luminaire according to the preamble of claim 1, which has a base body for supporting a light source and a dome-shaped reflector which is detachably fastened to the base body via a connecting device. In particular, the present invention relates to a so-called downlight.

Einbauleuchten der vorstehend beschriebenen Art werden üblicherweise in abgehängten Deckensystemen verwendet. Sie werden hierbei in einer kreisrunden Öffnung der abgehängten Decke versenkt angeordnet. Die Montage erfolgt beispielsweise mit Hilfe eines Montagerings, der zunächst an der Decke fixiert wird. Anschließend kann eine Baueinheit bestehend aus Lichtquellenträger und Reflektor an dem Montagering befestigt werden. Über den Reflektor wird dann das von der Lichtquelle abgegebene Licht im Wesentlichen senkrecht nach unten abgegeben.Recessed luminaires of the type described above are commonly used in suspended ceiling systems. They are here sunk in a circular opening of the suspended ceiling sunk. The assembly takes place for example by means of a mounting ring, which is first fixed to the ceiling. Subsequently, a unit consisting of light source carrier and reflector can be attached to the mounting ring. The light emitted by the light source is then emitted substantially vertically downwards via the reflector.

Durch die Wahl und Ausgestaltung des Reflektors kann die Lichtabgabe des Downlights in gewisser Weise beeinflusst werden. Oftmals ist auch gewünscht, innerhalb des Reflektors bzw. an dessen Lichtaustrittsöffnung ein optisches Element anzuordnen, um die Lichtabgabe in bestimmter Weise zu beeinflussen. Bei diesem optischen Element kann es sich um einen transparenten Körper mit lichtstreuenden oder lichtbrechenden Eigenschaften handeln. Auch die Montage eines Leuchtenrasters wäre denkbar.The choice and design of the reflector, the light output of the downlight can be influenced in some ways. Often, it is also desirable to arrange an optical element within the reflector or at its light exit opening in order to influence the light output in a certain way. This optical element may be a transparent body having light-diffusing or refractive properties. The installation of a lighting grid would be conceivable.

In der DE 100 13 087 A1 der Anmelderin ist ein Downlight beschrieben, welches die Befestigung derartiger optischer Zusatzbauteile ermöglicht. Hierfür ist ein Haltering vorgesehen, der am Außenumfang eines vorderen Flansches des Reflektors befestigt ist. Dieser Ring ermöglicht das Einsetzen eines optischen Elements, beispielsweise einer
transparenten Scheibe.In the DE 100 13 087 A1 the applicant is described a downlight, which allows the attachment of such additional optical components. For this purpose, a retaining ring is provided which is fixed to the outer periphery of a front flange of the reflector. This ring allows the insertion of an optical element, such as a
transparent disc.

EP 0750 159 A2 offenbart eine Einbauleuchte mit einer Lichtquelle, einem Basiskörper zur Halterung der Lichtquelle, der als Kühlkörper ausgestaltet ist, einem domförmigen Reflektor, einer Halterung, welche ein optisches Element wie eine Linse, einen Filter oder ähnliches aufnehmen kann, wobei die Lichtquelle in einer Vertiefung des Kühlkörpers angeordnet ist und in der Vertiefung ferner ein topfartiger Kopfreflektor angeordnet ist. EP 0750 159 A2 discloses a recessed luminaire with a light source, a base body for supporting the light source, which is designed as a heat sink, a dome-shaped reflector, a holder which can receive an optical element such as a lens, a filter or the like, wherein the light source in a recess of the heat sink is arranged and in the recess further a pot-like head reflector is arranged.

Auch aus der US 5,826,970 A und der DE 93 17 087 U1 sind Einbauleuchten bekannt, die beispielsweise in Decken eingebaut werden können.Also from the US 5,826,970 A and the DE 93 17 087 U1 are recessed lights known that can be installed in ceilings, for example.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine zu der zuvor beschriebenen bekannten Ausführungsform alternative Lösung zur Befestigung eines Zusatzbauteils bei einem Downlight anzugeben.The present invention has for its object to provide an alternative to the previously described known embodiment, a solution for mounting an additional component in a downlight.

Die Aufgabe wird durch eine Einbauleuchte mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche. Die erfindungsgemäße Einbauleuchte weist zunächst eine Lichtquelle, einen Basiskörper zur Halterung der Lichtquelle, der als Kühlkörper ausgestaltet ist, einen Haltering, der an den Kühlkörper angeschraubt ist, sowie einen domförmigen Reflektor auf, der über eine Verbindungseinrichtung lösbar an dem Haltering befestigt ist. Außerdem ist die Verbindungseinrichtung derart ausgebildet ist, dass im verbundenen Zustand von Haltering und Reflektor zwischen beiden Elementen ein zusätzliches optisches Element zur Beeinflussung der Lichtabgabe aufgenommen und fixiert ist. Die Lichtquelle ist dabei in einer Vertiefung des Kühlkörpers angeordnet, wobei in der Vertiefung ferner ein topfartiger Kopfreflektor angeordnet ist und das zusätzliche optische Element zwischen dem Reflektor und Kopfreflektor eingeklemmt ist und der Kopfreflektor mit Hilfe des Halterings fixiert ist.The object is achieved by a recessed luminaire with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims. The recessed luminaire according to the invention first comprises a light source, a base body for holding the light source, which is designed as a heat sink, a retaining ring which is screwed to the heat sink, and a dome-shaped reflector, which is fastened via a connecting device releasably attached to the retaining ring. In addition, the connecting device is designed such that in the connected state of the retaining ring and reflector between the two elements, an additional optical element for influencing the light output is received and fixed. The light source is arranged in a recess of the heat sink, wherein in the recess further a pot-like head reflector is arranged and the additional optical element between the reflector and head reflector is clamped and the head reflector is fixed by means of the retaining ring.

Mit anderen Worten, bei der vorliegenden Erfindung wird das zusätzliche optische Element nicht an der Lichtaustrittsöffnung des Reflektors befestigt, sondern stattdessen zwischen Haltering bzw. Basiskörper und Reflektor, genauer gesagt zwischen Kopfreflektor und Reflektor, gelagert. Dort wird es beim Zusammenfügen der beiden Elemente fixiert, bzw. verklemmt, so dass eine zuverlässige Halterung gewährleistet ist. Die erfindungsgemäße Lösung würde darüber hinaus auch die Möglichkeit eröffnen, zusätzlich an der Lichtaustrittsöffnung des Reflektors weitere Zusatzbauteile anzuordnen. Hierfür könnte wiederum die aus dem Stand der Technik bekannte Lösung verwendet werden.In other words, in the present invention, the additional optical element is not attached to the light exit opening of the reflector, but instead stored between the retaining ring or base body and reflector, more precisely between the head reflector and the reflector. There it is fixed when joining the two elements, or jammed, so that a reliable support is guaranteed. The solution according to the invention would also open up the possibility, in addition to the light exit opening of the reflector to arrange further additional components. For this purpose, in turn, the solution known from the prior art could be used.

Die Verbindungseinrichtung zwischen Haltering und Reflektor ist vorzugsweise durch eine Schraubverbindung bzw. eine Bajonettverbindung gebildet. Dies ermöglicht ein einfaches Zusammenfügen beider Elemente. Auch ein Lösen der Verbindung, um beispielsweise das zusätzliche optische Element auszutauschen, ist ohne Weiteres möglich.The connecting device between retaining ring and reflector is preferably formed by a screw connection or a bayonet connection. This allows easy joining of both elements. A release of the connection, for example, to replace the additional optical element, is readily possible.

Als Lichtquelle kommt im vorliegenden Fall vorzugsweise eine Lichtquelle auf LED-Basis zum Einsatz. Es kann sich beispielsweise um eine Platine handeln, auf der mehrere LEDs matrixartig angeordnet sind. In einem derartigen Fall muss berücksichtigt werden, dass beim Betrieb der LEDs eine nicht unbeträchtliche Wärme entsteht. Durch die Anordnung der Lichtquelle in einer Vertiefung des Kühlkörpers kann die Wärme effektiv abführt werden.In the present case, a light source based on LEDs is preferably used as the light source. It may, for example, be a circuit board on which a plurality of LEDs are arranged like a matrix. In such a case, it must be taken into account that not inconsiderable heat is generated during operation of the LEDs. The arrangement of the light source in a recess of the heat sink, the heat can be dissipated effectively.

Die Montage der Einbauleuchte in einer Decke erfolgt vorzugsweise wiederum über einen Montagering, der zur Befestigung in der Deckenöffnung vorgesehen ist. An diesem Montagering wird dann die Baueinheit bestehend aus Basiskörper und Reflektor befestigt, wozu wiederum vorzugsweise eine Schraub-oder Bajonettverbindung vorgesehen ist. Der Montagering kann dabei Rastmittel zum Verrasten bzw. Verklemmen mit der Decke aufweisen, wobei diese vorzugsweise in einem Auflagebereich mit einem die Reibung erhöhenden Element bzw. mit einer entsprechenden Beschichtung versehen sind. Eine Verdrehung des Downlights gegenüber der Decke wird hierdurch verhindert.The installation of the recessed luminaire in a ceiling is preferably again via a mounting ring, which is provided for attachment in the ceiling opening. At this mounting ring, the assembly is then fixed consisting of base body and reflector, which in turn preferably a screw or Bayonet connection is provided. The mounting ring may have latching means for latching or jamming with the ceiling, which are preferably provided in a support area with a friction increasing element or with a corresponding coating. A rotation of the downlight relative to the ceiling is thereby prevented.

Nachfolgend soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

Fig. 1 und 2
Ansichten eines ersten Ausführungsbeispiels einer erfindungsgemäßen Einbauleuchte;
Fig. 3a
eine Schnittdarstellung der Leuchte der Figuren 1 und 2;
Fig. 3b und 3c
Schnittdarstellungen des Basiskörpers;
Fig. 4 die
Leuchte gemäß dem ersten Ausführungsbeispiel in Explosionsdarstellung;
Fig. 5 und 6
aufeinanderfolgende Schritte beim Zusammenfügen der Leuchte;
Fig. 7a und 7b
Ansichten eines bei der Leuchte der Figuren 1 und 2 verwendeten Kopfreflektors;
Fig. 8a und 8b
Ansichten eines Befestigungsrings zur Befestigung des domförmigen Reflektors an dem Basiskörper;
Fig. 9a und 9b
Ansichten eines domförmigen Reflektors;
Fig. 10a bis 10c
Ansichten eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Leuchte;
Fig. 11a und 11b
Ansichten eines dritten Ausführungsbeispiels einer erfindungsgemäßen Leuchte und
Fig. 12a und 12b
Ansichten eines vierten Ausführungsbeispiels einer erfindungsgemäßen Leuchte.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1 and 2
Views of a first embodiment of a recessed luminaire according to the invention;
Fig. 3a
a sectional view of the lamp of Figures 1 and 2 ;
Fig. 3b and 3c
Sectional views of the base body;
Fig. 4 the
Luminaire according to the first embodiment in exploded view;
FIGS. 5 and 6
successive steps in assembling the luminaire;
Fig. 7a and 7b
Views of the light of the Figures 1 and 2 used head reflector;
Fig. 8a and 8b
Views of a mounting ring for fixing the dome-shaped reflector to the base body;
Fig. 9a and 9b
Views of a domed reflector;
Fig. 10a to 10c
Views of a second embodiment of a lamp according to the invention;
Fig. 11a and 11b
Views of a third embodiment of a lamp according to the invention and
Fig. 12a and 12b
Views of a fourth embodiment of a lamp according to the invention.

Die Figuren 1 und 2 zeigen zunächst Ansichten der allgemein mit dem Bezugszeichen 1 versehenen erfindungsgemäßen Einbauleuchte im vollständig zusammengefügten Zustand. Es handelt sich um ein sogenanntes Downlight, welches in der kreisrunden Öffnung einer abgehängten Decke montiert werden soll.The Figures 1 and 2 show first views of the generally provided with the reference numeral 1 recessed luminaire according to the invention in the fully assembled state. It is a so-called downlight, which is to be mounted in the circular opening of a suspended ceiling.

Die Montage erfolgt hierbei mit Hilfe eines Montagerings 50, der zunächst an der Einbauöffnung der - nicht dargestellten - Decke fixiert wird. Anschließend wird die eigentliche Leuchteneinheit an dem Montagering befestigt. Diese Art der Montage von Downlights ist bereits bekannt und soll dementsprechend im Folgenden nicht weiter besprochen werden. Lediglich kurz soll darauf hingewiesen werden, dass die Befestigung des Montagerings 50 an der Decke mit Hilfe von Rastmitteln erfolgt, welche insbesondere über den Umfang des Rings 50 verteilte Rastarme 55 umfassen, die höhenverstellbar an Stegen 56 angeordnet sind. Zum Einsetzen des Montagerings 50 in die Deckenöffnung werden die Arme 55 derart positioniert, dass sie das Einsetzen des Montagerings 50 ermöglichen. Anschließend erfolgt ein seitliches Ausschwenken der Arme 55 derart, dass Auflageelemente 57 auf der Oberseite der abgehängten Decke aufliegen. Gemeinsam mit dem an der Unterseite der Decke anliegenden umlaufenden Flansch 51 bewirken die Auflageelemente 57 eine Verklemmung des Montagerings 50 mit der Decke.The assembly takes place here using a mounting ring 50, which is first fixed to the mounting hole of the - not shown - ceiling. Subsequently, the actual lighting unit is attached to the mounting ring. This type of installation of downlights is already known and should therefore not be discussed further below. It should be pointed out briefly that the mounting of the mounting ring 50 on the ceiling by means of locking means, which in particular over the circumference of the ring 50 distributed locking arms 55 comprise, which are arranged adjustable in height on webs 56. To insert the mounting ring 50 in the ceiling opening, the arms 55 are positioned so that they allow the insertion of the mounting ring 50. Subsequently, a lateral pivoting of the arms 55 takes place in such a way that support elements 57 rest on the top side of the suspended ceiling. Together with the voltage applied to the underside of the ceiling surrounding flange 51 cause the support members 57 jamming of the mounting ring 50 with the ceiling.

Eine Besonderheit besteht im vorliegenden Fall dabei darin, dass die Auflageelemente 57 mit einem die Reibung erhöhenden Element 58 bzw. einer Beschichtung versehen sind. Es kann sich beispielsweise um einen Gummiring oder ein entsprechendes aufgestecktes Element aus Gummi oder Kunststoff handeln, durch welches die Reibung mit der Oberfläche der Decke deutlich erhöht wird. Hierdurch wird ein unbeabsichtigtes Verdrehen des Montagerings 50 und letztendlich der gesamten Leuchte gegenüber der Decke verhindert.A special feature in the present case is that the support elements 57 are provided with a friction-increasing element 58 or a coating. It may be, for example, a rubber ring or a corresponding plugged element made of rubber or plastic, by which the friction with the surface of the ceiling is significantly increased. As a result, an unintentional rotation of the mounting ring 50 and ultimately the entire lamp is prevented from the ceiling.

Nach dem Fixieren des Montagrings 50 in der Deckenöffnung wird wie bereits erwähnt die eigentliche Leuchteneinheit montiert. Diese besteht im vorliegenden Fall zum einen aus einem Basiskörper sowie zum anderen aus einem domförmigen Reflektor. Wie später noch ausführlich erläutert, wird hierdurch eine modulartige Ausgestaltung der erfindungsgemäßen Leuchte geschaffen, die es ermöglicht, Reflektoren unterschiedlicher Art zu verwenden und ferner auch in einfacher Weise optische Elemente zur Beeinflussung der Lichtabgabe zu nutzen.After fixing the mounting ring 50 in the ceiling opening the actual lighting unit is mounted as already mentioned. In the present case, this consists on the one hand of a base body and on the other hand of a dome-shaped reflector. As will be explained in detail later, a modular design of the luminaire according to the invention is thereby created, which makes it possible to use reflectors of different types and also to use optical elements for influencing the light output in a simple manner.

Die einzelnen Komponenten dieser zwei Baueinheiten der Leuchte können insbesondere auch der Explosionsdarstellung von Figur 4 entnommen werden.The individual components of these two structural units of the lamp can in particular also the exploded view of FIG. 4 be removed.

Der Basiskörper wird hierbei durch einen zylinderartigen Kühlkörper 10 gebildet, der insbesondere der Halterung und Kühlung der Lichtquelle dient. Im vorliegenden Fall ist die Lichtquelle insbesondere durch ein LED-Modul 15 gebildet, welches mehrere auf einer Platine angeordnete LEDs aufweist. Diese Platine 15 ist in einer Vertiefung des Kühlkörpers 10 angeordnet und vorzugsweise unmittelbar auf dem Kühlkörper befestigt, um eine gute Wärmeübertragung zu ermöglichen. Der Kühlkörper 10, der eine Vielzahl von Kühllamellen 11 aufweist, die sich von einem massiven Zentralbereich 12 zur Seite erstrecken, ist hierzu an einer Seite mit einer sich leicht verjüngenden Vertiefung ausgebildet, an deren Boden die Auflagefläche für die LED-Platine gebildet ist. Innerhalb dieser Vertiefung werden dann ferner noch ein domförmiges Kunststoffelement 17 sowie ein domförmiger Kopfreflektor 18 angeordnet.The base body is in this case formed by a cylinder-like heat sink 10, which serves in particular to support and cool the light source. In the present case, the light source is formed in particular by an LED module 15, which has a plurality of LEDs arranged on a circuit board. This board 15 is disposed in a recess of the heat sink 10 and preferably attached directly to the heat sink to allow a good heat transfer. The heat sink 10, which has a plurality of cooling fins 11 which extend from a massive central region 12 to the side, is for this purpose formed on one side with a slightly tapered recess, at the bottom of the support surface is formed for the LED board. Within this recess, a dome-shaped plastic element 17 and a dome-shaped head reflector 18 are then also arranged.

Der Kopfreflektor 18, der in weiteren Ansichten in den Figuren 7a und 7b dargestellt ist, dient hierbei dazu, das von den LEDs in einem großen Raumbereich abgestrahlte Licht effektiv zur Unterseite zu richten. Vorzugsweise besteht dieser Kopfreflektor 18 aus einem verhältnismäßig flexiblen Kunststoffmaterial, welches in die entsprechende Form tiefgezogen wurde. Das an der Rückseite befindliche Kunststoffteil 17, dessen Form im Wesentlichen der Form des Kopfreflektors 18 entspricht, bildet hierbei eine Stütze für den Reflektor 18.The head reflector 18, which in further views in the FIGS. 7a and 7b is shown here serves to effectively direct the light emitted by the LEDs in a large spatial area light to the bottom. Preferably, this head reflector 18 consists of a relatively flexible plastic material, which has been deep-drawn into the appropriate shape. The plastic part 17 located on the rear side, the shape of which corresponds essentially to the shape of the head reflector 18, forms a support for the reflector 18.

Beide Elemente, also Kunststoffteil 17 und Kopfreflektor 18 werden mit Hilfe eines Halterings 20 an dem Kühlkörper 10 fixiert. Der Haltering 20 selbst wird mit Hilfe von Schrauben 21 an dem Kühlkörper 10 angeschraubt. Figuren 8a und 8b zeigen weitere Ansichten dieses Halterings 20, der vorzugsweise aus Kunststoffmaterial gebildet ist und im auf den Kühlkörper 10 aufgeschraubten Zustand das Kunststoffteil 17 mit dem Kopfreflektor 18 klemmend fixiert.Both elements, ie plastic part 17 and head reflector 18 are fixed by means of a retaining ring 20 on the heat sink 10. The retaining ring 20 itself is screwed by means of screws 21 to the heat sink 10. FIGS. 8a and 8b show further views of this retaining ring 20, which is preferably formed of plastic material and fixed in the screwed on the heat sink 10 state, the plastic part 17 with the head reflector 18 clamped.

Eine weitere wesentliche Funktion des Halterings 20 besteht darin, eine lösbare Verbindung für den eigentlichen domförmigen Reflektor 25 der Leuchte 1 zu schaffen. Hierfür ist insbesondere eine Bajonettverbindung zwischen Haltering 20 und Reflektor 25 vorgesehen. Der Reflektor, der in den Figuren 9a und 9b näher dargestellt ist, weist hierzu an der Außenseite der Reflektorwand drei Haken 26 auf, welche mit entsprechenden Führungsvorsprüngen 22 an dem Haltering 20 eine Bajonettverbindung bilden. Diese ermöglicht ein einfaches und schnelles Befestigen des Reflektors 25 an dem Kühlkörper 10, wobei alternativ hierzu auch eine Schraubverbindung denkbar wäre.Another essential function of the retaining ring 20 is to provide a releasable connection for the actual dome-shaped reflector 25 of the lamp 1. For this purpose, in particular a bayonet connection between the retaining ring 20 and reflector 25 is provided. The reflector in the FIGS. 9a and 9b is shown in detail, this has on the outside of the reflector wall three hooks 26, which form a bayonet connection with corresponding guide projections 22 on the retaining ring 20. This allows a simple and quick attachment of the reflector 25 to the heat sink 10, alternatively, a screw connection would be conceivable.

Dabei ist die Verbindung - im vorliegenden Fall also die Bajonettverbindung - zwischen dem Haltering 20 und dem Reflektor 25 derart ausgebildet, dass beim Befestigen des Reflektors 25 optische Elemente zur Beeinflussung der Lichtabgabe eingefügt und fixiert werden können. Im dargestellten Ausführungsbeispiel soll insbesondere eine Vergleichmäßigung der Lichtabgabe erzielt werden bzw. es ist gewünscht, dass die einzelnen LEDs der LED-Platine nicht mehr individuell wahrnehmbar sind. Hierfür soll im oberen Bereich des Reflektors 25 eine optische Einheit bestehend aus einer Kunststoffscheibe 30 sowie einer davor angeordneten lichtstreuenden Folie 31 montiert werden. Beide Elemente können - wie nachfolgend gezeigt - nunmehr vor dem Fixieren des Reflektors 25 an dem Haltering 20 in den Ring 20 eingelegt werden. Wird anschließend der Reflektor 25 mittels der Bajonettverbindung fixiert, so führt dies gleichzeitig auch zu einer Fixierung der optischen Elemente 30, 31.In this case, the connection - in the present case, the bayonet connection - between the retaining ring 20 and the reflector 25 is formed such that when attaching the reflector 25 optical elements can be inserted and fixed to influence the light output. In the illustrated embodiment, in particular a homogenization of the light output is to be achieved or it is desired that the individual LEDs of the LED board are no longer individually perceptible. For this purpose, in the upper region of the reflector 25, an optical unit consisting of a plastic disk 30 and a light-scattering film 31 arranged in front of it is mounted. Both elements can - as shown below - now be inserted before fixing the reflector 25 to the retaining ring 20 in the ring 20. If subsequently the reflector 25 is fixed by means of the bayonet connection, this simultaneously leads to a fixation of the optical elements 30, 31.

Aus dem zuvor beschriebenen Zusammenwirken der verschiedenen Komponenten der erfindungsgemäßen Leuchte ergibt sich nunmehr folgende Vorgehensweise beim Zusammenfügen bzw. Montieren.From the above-described interaction of the various components of the luminaire according to the invention, the following procedure now results during assembly or assembly.

Zunächst werden auf den Kühlkörper 10 mit dem daran befestigten LED-Modul das Kunststoffteil 17 und der Kopfreflektor 18 aufgesetzt. Beide Elemente werden dann mit Hilfe des Halterings 20, der durch die Schrauben 21 auf den Kühlkörper 10 aufgeschraubt wird, fixiert, so dass sich die in Figur 5 dargestellte Anordnung ergibt. Im darauffolgenden Schritt werden dann die optischen Elemente, also die Streufolie 31 und die Kunststoffscheibe 30 in den Haltering 20 eingelegt. Anschließend wird der Reflektor 25 auf den Haltering 20 aufgesetzt und verdreht, um über die Bajonettverbindung eine Arretierung zu erzielen.First, the plastic part 17 and the head reflector 18 are placed on the heat sink 10 with the attached LED module. Both elements are then fixed by means of the retaining ring 20, which is screwed by the screws 21 onto the heat sink 10, so that the in FIG. 5 shown arrangement results. In the subsequent step, the optical elements, that is, the scattering film 31 and the plastic disk 30 are then inserted into the retaining ring 20. Subsequently, the reflector 25 is placed on the retaining ring 20 and rotated in order to achieve a catch on the bayonet connection.

Die sich hierbei ergebende und in Figur 6 dargestellte Baueinheit bestehend aus Kühlkörper 10 und Reflektor 25 wird dann wie anfangs beschrieben an dem Montagering 50 befestigt. Auch hier erfolgt eine Verbindung wiederum mit Hilfe einer Bajonettverriegelung, wofür der Reflektor 25 an seiner Außenseite weitere vorstehende Zapfen 27 aufweist, die mit den entsprechenden Führungsbahnen 52 an dem Montagering zusammenwirken. Der Reflektor 25 stellt also das Bindeglied zwischen Montagering 50 und Kühlkörper 10 dar.The resulting and in FIG. 6 illustrated assembly consisting of heat sink 10 and reflector 25 is then attached to the mounting ring 50 as described initially. Again, a connection is again using a bayonet lock, for which the reflector 25 has on its outer side further protruding pin 27, which cooperate with the corresponding guideways 52 on the mounting ring. The reflector 25 thus represents the link between mounting ring 50 and heat sink 10.

Letztendlich ergibt sich dann die in den Figuren 1 und 2 in perspektivischen Ansichten sowie in den Figur 3a bis 3c in Schnittdarstellungen gezeigte Anordnung. Hierbei ist klar erkennbar, dass die optischen Elemente bestehend aus Kunststoffscheibe 30 und Streufolie 31 zwischen dem Reflektor 25 und dem mit Hilfe des Halterings 20 fixierten Kopfreflektor 18 eingeklemmt werden. In dem Bereich zwischen LED-Modul 15 und Streufolie 31 wird hierdurch eine sogenannte Lichtkammer 60 gebildet, in der eine Vermischung bzw. Umlenkung der Lichtstrahlen derart erfolgt, dass eine möglichst gleichmäßig hell leuchtende Lichtabgabe erzielt wird. Auch die Nutzung mehrerer verschiedenfarbiger LEDs zum Erzeugen von Licht in einer bestimmten Mischfarbe oder einer gewünschten Farbtemperatur wäre denkbar.Finally, then the results in the Figures 1 and 2 in perspective views as well as in the FIGS. 3a to 3c Arrangement shown in sectional views. It can be clearly seen that the optical elements consisting of plastic disk 30 and scattering film 31 between the reflector 25 and fixed by means of the retaining ring 20 Head reflector 18 are clamped. In the area between LED module 15 and scattering film 31, a so-called light chamber 60 is thereby formed, in which a mixing or deflection of the light beams takes place in such a way that a light output that is as bright as possible is achieved. It would also be conceivable to use a plurality of differently colored LEDs for producing light in a specific mixed color or a desired color temperature.

Das zuvor beschriebene erfindungsgemäße Konzept, nämlich die optischen Elemente zur Beeinflussung der Lichtabgabe zwischen Kopfreflektor und Domreflektor einzuklemmen, ist nicht auf die dargestellten scheibenartigen optischen Elemente beschränkt. Denkbar wäre beispielsweise auch, Leuchtenraster oder vergleichbare Elemente in entsprechender Weise anzuordnen. Ferner könnten im Falle scheibenartiger Elemente auch lichtbeeinflussende Elemente mit Prismenstrukturen oder dergleichen eingesetzt werden.The inventive concept described above, namely to clamp the optical elements for influencing the light output between the head reflector and the dome reflector, is not limited to the illustrated disk-like optical elements. It would also be conceivable, for example, to arrange luminaire screens or comparable elements in a corresponding manner. Furthermore, in the case of disk-like elements, light-influencing elements with prismatic structures or the like could also be used.

Desweitern eröffnet die modulartige Bauweise der erfindungsgemäßen Leuchte die Möglichkeit, in einfacher Weise einen Wechsel des Reflektors vorzunehmen. Beispielhaft sind in den Figuren 10 bis 12 weitere Ausführungsbeispiele erfindungsgemäßer Einbauleuchten dargestellt, bei denen jeweils unterschiedliche Reflektoren verwendet wurden. Die Figuren zeigen, dass durch den Austausch der Reflektoren das Erscheinungsbild der Leuchte und auch deren Lichtabgabe beeinflusst werden kann. So ist bei der Variante der Figuren 10a bis 10c der Reflektor 25 höher ausgestaltet, wodurch sich eine stärker gebündelte Lichtabgabe zur Unterseite hin ergibt. Die Varianten der Figuren 11 und 12 entsprechen dem ersten und zweiten Ausführungsbeispiel, allerdings weist hier der Reflektor 25 an der Unterseite keinen umlaufenden Rahmen auf. Bei dieser sog. rahmenlosen Variante ist auch der Montagering etwas anders gestaltet, da er nun entweder nach Montage verputzt wird oder von der Oberseite her an der Decke befestigt wird.Furthermore, the modular design of the luminaire according to the invention opens up the possibility of easily changing the reflector. Exemplary are in the FIGS. 10 to 12 illustrated further embodiments of recessed luminaires according to the invention, in which different reflectors were used in each case. The figures show that the appearance of the luminaire and also its light output can be influenced by the replacement of the reflectors. So is the variant of FIGS. 10a to 10c the reflector 25 designed higher, resulting in a more concentrated light output to the bottom out. The variants of Figures 11 and 12 correspond to the first and second embodiments, but here has the reflector 25 on the bottom no peripheral frame. In this so-called frameless variant of the mounting ring is designed slightly different, since it is now either plastered after installation or is attached to the ceiling from the top.

Das Zusammenfügen und Montieren der Leuchte erfolgt allerdings in sämtlichen Beispielen in gleicher Weise, so dass letztendlich unterschiedlich ausgestaltete Einbauleuchten realisiert werden können. Bei all diesen Varianten besteht der oben beschriebene Vorteil der Möglichkeit, in einfacher Weise optische Elemente zum Beeinflussen die Lichtabgabe anordnen zu können.However, the assembly and assembly of the luminaire takes place in the same way in all the examples, so that finally differently designed recessed luminaires can be realized. In all these variants, the advantage described above of the possibility of being able to easily arrange optical elements for influencing the light output.

Claims (8)

  1. Recessed luminaire (1) with
    a light source (15),
    a base body for holding the light source (15), which is designed as a heat sink (10),
    a retaining ring (20) which is screwed onto the heat sink (10), as well as a dome-shaped reflector (25), which is releasedly attached to the retaining ring (20) via a connecting device,
    wherein the connecting device is so formed that an additional optical element (30, 31) for influencing the light output is received and fixed in the connected state of the retaining ring (20) and reflector (25),
    wherein the light source (15) is arranged in a recess of the heat sink (10), and a pot-like head reflector (18) is further arranged in the recess, and
    wherein the additional optical element (30, 31) is clamped between the reflector (25) and upper reflector (18), and the top reflector (18) is fixed with the help of the retaining ring (20).
  2. Recessed luminaire
    characterized in that
    the connecting device is formed by a screw connection or a bayonet connection.
  3. Recessed luminaire according to one of the preceding claims,
    characterized in that
    this further comprises a mounting ring (50) for fastening in a ceiling opening.
  4. Recessed luminaire according to claim 3,
    characterized in that
    the mounting ring (50) has latching means (57) for locking or jamming with the ceiling, wherein the latching means (57) are provided in a support area with a friction-enhancing element (58) or a coating.
  5. Recessed luminaire according to claim 3 or 4,
    characterized in that
    the reflector (25) is preferably releasedly connected to the mounting ring (50) via a screw connection or bayonet connection.
  6. Recessed luminaire according to one of the preceding claims, characterized
    in that
    the light source (15) comprises one or more LEDs.
  7. Recessed luminaire according to one of the preceding claims, characterized
    in that
    the additional optical element is formed by a diffusion disc or diffusion sheet (31).
  8. Recessed luminaire according to any one of the claims I to 6, characterized in
    that
    the additional optical element is formed by a grid.
EP11704985.8A 2010-02-23 2011-02-23 Recessed light having a base body and a dome-shaped reflector Active EP2539629B1 (en)

Applications Claiming Priority (2)

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DE202010002676U DE202010002676U1 (en) 2010-02-23 2010-02-23 Recessed luminaire with base body and domed reflector
PCT/EP2011/052651 WO2011104258A2 (en) 2010-02-23 2011-02-23 Recessed light having a base body and a dome-shaped reflector

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EP2539629A2 EP2539629A2 (en) 2013-01-02
EP2539629B1 true EP2539629B1 (en) 2016-08-24

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CN (1) CN102822591B (en)
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WO2011104258A2 (en) 2011-09-01
EP2539629A2 (en) 2013-01-02
WO2011104258A3 (en) 2011-11-24
DE202010002676U1 (en) 2011-07-26
CN102822591A (en) 2012-12-12
CN102822591B (en) 2015-08-05
US20130051012A1 (en) 2013-02-28
US8801217B2 (en) 2014-08-12

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