EP2375131B1 - Downlight system - Google Patents

Downlight system Download PDF

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Publication number
EP2375131B1
EP2375131B1 EP10003734.0A EP10003734A EP2375131B1 EP 2375131 B1 EP2375131 B1 EP 2375131B1 EP 10003734 A EP10003734 A EP 10003734A EP 2375131 B1 EP2375131 B1 EP 2375131B1
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EP
European Patent Office
Prior art keywords
accordance
metal frame
cover
reflector
downlight system
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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.)
Not-in-force
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EP10003734.0A
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German (de)
French (fr)
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EP2375131A1 (en
Inventor
Hartmut S. Engel
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Individual
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Individual
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Priority to EP10003734.0A priority Critical patent/EP2375131B1/en
Publication of EP2375131A1 publication Critical patent/EP2375131A1/en
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Classifications

    • 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
    • F21V17/105—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 using magnets
    • 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
    • F21V21/041—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates
    • F21V21/042—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall
    • F21V21/044—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall with elastically deformable elements, e.g. spring tongues
    • F21V21/046—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall with elastically deformable elements, e.g. spring tongues being tensioned by rotation of 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
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
    • 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
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—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
    • 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 present invention relates to a downlight system for lamps in the form of LED modules or metal halide lamps, with a content Erten held in a housing socket for the respective lamp and a receiving space for a reflector.
  • the object of the invention is to provide a downlight system of the type specified above, which is characterized mainly by optimal heat dissipation with high compactness, thus ensuring a constant color reproduction and constant luminous flux over the life.
  • the socket receiving the bulb is applied flat against a massive heat conducting body, that the heat conducting body forms the end closure of the housing, the peripheral wall of at least two positively pressed against the heat conducting body Cooling profiles and a metal frame having vents, which is bolted to the free ends of the cooling profiles and in particular forms together with the cooling profile interior a reflector receiving space.
  • the cooling profiles which are provided with outer ribs and smooth inner surfaces, are preferably designed as half-shells in the form of extruded aluminum profiles and selected in their axial length so that they preferably extend beyond the free end of the respective bulb, whereby externally generates a correspondingly pronounced flow of cooling air can be.
  • the belonging to the housing, resting on the cooling profile ends metal frame which is bolted to the cooling profile ends, next to a perforated support surface and also having openings peripheral surface has a support surface for the peripheral flange of each selected reflector, wherein the peripheral flange of the reflector as a support for a cover Translucent disc is used.
  • the cooling air flow is promoted and used the support edge of the metal frame at the same time as a built-in stop.
  • the support surface of the metal frame also forms the opposite pole for the magnetic support of the cover, which is provided with corresponding holding magnets.
  • pivotally mounted brackets are provided between the cover and the metal frame, since then the cover does not have to be held when removing it.
  • These straps can be used simultaneously for the positioning of the cover and the reflectors to the housing in the closed state.
  • connection between the reflector to be used in each case and the cover preferably takes place via pin-hole connections which act in a clamping manner between the peripheral flange of the reflector and the cover.
  • the drawing shows a light source used as a cylindrical LED unit 1, which is inserted via a bayonet connection in a cylindrical or disc-shaped socket 2.
  • the light-emitting means 1 is thus replaceable, and this also applies to the case of using a metal vapor lamp as the light source, which is then accommodated in a corresponding socket.
  • the version 2 is well heat-conducting connected to a shape adapted, solid heat conduction body 3, in particular screwed, and this massive heat conducting 3 simultaneously forms the end of the completed by cooling sections 4, 5 and a metal frame 8 housing.
  • the metal frame 8 which closes the housing upwards, is screwed to the free ends of the cooling profiles 4, 5 and forms or completes the space required for the respective reflector 14.
  • the metal frame 8 comprises in addition to a provided with cooling air passage openings 10 bearing surface 9 and also provided with ventilation openings 12 peripheral surface 11 a support surface 13 for the respective reflector peripheral flange 15, which in turn supports a cover 16 which supports a translucent disc.
  • the cover 16 and the reflector peripheral flange 15 are connected to each other via pin-hole connections, i. this connection between reflector and cover is realized by pressing small holes in the reflector edge on correspondingly small, integrally formed on the cover pins. This solution is particularly cost-effective.
  • Cover 16 and reflector 15 are secured to the metal frame via magnetic supports 17, i. the support edge 13 of the metal frame forms the opposite pole for the magnetic support of the cover 16, which forms a unit with the respective reflectors.
  • brackets 18 are provided between the cover 16 and the metal frame, which are pivotally mounted on both parts and thus ensure in that the cover 16 and the reflector 14 are held in the pivoted state on the metal frame 8 and a possibly required lamp change is carried out simply and quickly can be. At the same time, these brackets 18 provide for the positioning of the cover and the respective reflector to the housing in the closed state.
  • the metal frame 8 takes on suitable brackets 20 and the spring elements 19, which are provided for tool-free installation in the respective ceiling.
  • the round downlight system shown in the drawing can be realized in an analogous manner with square or rectangular outer contour.
  • the dustproof embodiment the achievable by optimal cooling longevity of the bulbs and the ease of handling when necessary to change the bulb affect advantageous.
  • the system can be realized with relatively low tooling costs and quickly adapted to the respective application by the use of different reflectors.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

Die vorliegende Erfindung betrifft ein Downlight-System für Leuchtmittel in Form von LED-Modulen oder Halogen-Metalldampflampen, mit einer in einem Gehäuse gehalterten Fassung für das jeweilige Leuchtmittel und einem Aufnahmeraum für einen Reflektor.The present invention relates to a downlight system for lamps in the form of LED modules or metal halide lamps, with a content Erten held in a housing socket for the respective lamp and a receiving space for a reflector.

Der Verwendung von energiesparenden, langlebigen und dennoch leistungsfähigen Leuchtmitteln kommt zunehmend größere Bedeutung zu. Dies gilt auch für die Verwendung derartiger Leuchtmittel in Downlight-Systemen, bei denen die hohe Lichtleistung der verschiedenen Leuchtmittel, der gute Wirkungsgrad und auch die Dimmbarkeit genutzt werden können. Von besonderer Bedeutung ist dabei, dass mit Leuchtmitteln in Form von LED-Modulen oder auch in Form von Halogen-Metalldampflampen kleine Baueinheiten, d.h. auch geringe Einbautiefen realisiert werden können.The use of energy-saving, durable and yet powerful lamps is becoming increasingly important. This also applies to the use of such lamps in downlight systems, in which the high light output of the various lamps, the good efficiency and dimming can be used. Of particular importance is that with light sources in the form of LED modules or in the form of metal halide lamps small units, i. E. Even small installation depths can be realized.

Aus dem Dokument WO 2009/039491 A1 ist ein Downlight-System mit den Merkmalen des Oberbegriffs des Anspruchs 1 bekannt.From the document WO 2009/039491 A1 a downlight system with the features of the preamble of claim 1 is known.

Aufgabe der Erfindung ist es, ein Downlight-System der eingangs angegebenen Art zu schaffen, das sich vor allem durch optimale Wärmeableitung bei hoher Kompaktheit auszeichnet und damit eine konstante Farbwiedergabe und konstanten Lichtstrom über die Lebensdauer gewährleistet.The object of the invention is to provide a downlight system of the type specified above, which is characterized mainly by optimal heat dissipation with high compactness, thus ensuring a constant color reproduction and constant luminous flux over the life.

Diese Aufgabe wird im Wesentlichen nach der Erfindung dadurch gelöst, dass die das Leuchtmittel aufnehmende Fassung flächig anliegend auf einem massiven Wärmeleitkörper angebracht ist, dass der Wärmeleitkörper den endseitigen Abschluss des Gehäuses bildet, dessen Umfangswand aus zumindest zwei formschlüssig gegen den Wärmeleitkörper gepressten Kühlprofilen sowie einem Lüftungsöffnungen aufweisenden Metallrahmen besteht, der mit den freien Enden der Kühlprofile verschraubt ist und insbesondere zusammen mit dem Kühlprofil-Innenraum einen Reflektoraufnahmeraum bildet.This object is essentially achieved according to the invention in that the socket receiving the bulb is applied flat against a massive heat conducting body, that the heat conducting body forms the end closure of the housing, the peripheral wall of at least two positively pressed against the heat conducting body Cooling profiles and a metal frame having vents, which is bolted to the free ends of the cooling profiles and in particular forms together with the cooling profile interior a reflector receiving space.

Durch die unmittelbare wärmeleitende Verbindung zwischen der das Leuchtmittel aufnehmenden, block- oder scheibenförmig gestalteten Fassung mit dem massiven Wärmeleitkörper und dem unmittelbaren, ebenfalls sehr gut wärmeleitenden Kontakt zwischen diesem massiven Körper und den das Gehäuse des Downlight-Systems bildenden Kühlprofilen wird die leuchtmittelseitig entstehende Wärme schnell abgeführt und gleichmäßig auf die Kühlprofile verteilt, an deren berippter Außenfläche sich dann die erwünschte Kühlluftströmung einstellt. Diese optimale Wärmeabführung bzw. Kühlung des Gesamtsystems ist maßgeblich dafür, dass die Lebensdauer der Leuchtmittel bei konstanter Farbwiedergabe und konstantem Lichtstrom voll genutzt werden kann, und zwar bei äußerst kompakter Gestaltung des Downlights.Due to the direct heat-conducting connection between the bulb receiving, block or disk-shaped socket with the solid heat conducting body and the direct, also very good heat conducting contact between this solid body and the housing of the downlight system forming cooling profiles, the heat generated by the lamp side is fast dissipated and evenly distributed to the cooling profiles, at the ribbed outer surface then sets the desired cooling air flow. This optimum heat dissipation or cooling of the entire system is decisive for the fact that the life of the lamps can be fully utilized with constant color rendering and constant luminous flux, with extremely compact design of the downlight.

Während im Zusammenhang mit LED-Leuchten häufig aktive Kühlsysteme verwendet werden müssen, um die Wärme von den Kühlrippen wegzutransportieren, gelingt es durch die erfindungsgemäßen Maßnahmen, ein passives, keinerlei zusätzliche Energie erforderndes Kühlsystem zu schaffen, so dass auch die Energieeffizienz der LED-Module nicht negativ beeinflusst wird. Dies ist im Gegensatz zur Erfindung bei den bekannten aktiven Kühlsystemen der Fall, die mit Miniventilatoren oder Ultraschallmembranen arbeiten, um durch Erzeugung von Luftbewegungen einen Wärmeabtransport zu gewährleisten. Solche aktiven Kühlsysteme erfordern nicht nur zusätzliche Kosten und stellen grundsätzlich auch eine Störungsquelle dar, sondern sie können insbesondere bei ungünstigen Bedingungen auch zur Ursache störender Schallemissionen werden.While in the context of LED lights often active cooling systems must be used to transport away the heat from the cooling fins, it is possible by the inventive measures to provide a passive, no additional energy requiring cooling system, so that the energy efficiency of the LED modules not is negatively influenced. This is in contrast to the invention in the case of the known active cooling systems, the case of working with mini-fans or ultrasonic membranes to ensure by generating air movements heat dissipation. Such active cooling systems not only require additional costs and, in principle, also constitute a source of interference, but they can also become the cause of disturbing noise emissions, in particular under unfavorable conditions.

Die Kühlprofile, die mit Außenrippen und glatten Innenflächen versehen sind, werden bevorzugt als Halbschalen in Form von Alu-Strangpressprofilen ausgebildet und in ihrer Axiallänge so gewählt, dass sie sich bevorzugt über das freie Ende des jeweiligen Leuchtmittels hinauserstrecken, wodurch außenseitig eine entsprechend ausgeprägte Kühlluftströmung erzeugt werden kann.The cooling profiles, which are provided with outer ribs and smooth inner surfaces, are preferably designed as half-shells in the form of extruded aluminum profiles and selected in their axial length so that they preferably extend beyond the free end of the respective bulb, whereby externally generates a correspondingly pronounced flow of cooling air can be.

Der zum Gehäuse gehörende, auf den Kühlprofilenden aufliegende Metallrahmen, der mit den Kühlprofilenden verschraubt ist, besitzt neben einer gelochten Auflagefläche und einer ebenfalls Öffnungen aufweisenden Umfangsfläche eine Stützfläche für den Umfangsflansch des jeweils ausgewählten Reflektors, wobei der Umfangsflansch des Reflektors als Träger für eine Abdeckung mit lichtdurchlässiger Scheibe genutzt ist.The belonging to the housing, resting on the cooling profile ends metal frame which is bolted to the cooling profile ends, next to a perforated support surface and also having openings peripheral surface has a support surface for the peripheral flange of each selected reflector, wherein the peripheral flange of the reflector as a support for a cover Translucent disc is used.

Durch die gewählte Gestaltung des Mehrfachfunktion besitzenden Metallrahmens wird die Kühlluftströmung gefördert und der Stützrand des Metallrahmens gleichzeitig als Einbauanschlag genutzt.Due to the selected design of the multi-function possessed metal frame, the cooling air flow is promoted and used the support edge of the metal frame at the same time as a built-in stop.

Die Stützfläche des Metallrahmens bildet auch den Gegenpol für die magnetische Halterung der Abdeckung, die mit entsprechenden Haltmagneten versehen ist. Auf diese Weise kann das Downlight einfach und schnell geöffnet werden, da dazu lediglich die Abdeckung und der mit ihr verbundene Reflektor gegen die Haltekraft der Magneten abgezogen werden muss und dann das Leuchtmittel unmittelbar zugänglich ist und auch ausgewechselt werden kann.The support surface of the metal frame also forms the opposite pole for the magnetic support of the cover, which is provided with corresponding holding magnets. In this way, the downlight can be opened easily and quickly, as to only the cover and the reflector connected to it must be deducted against the holding force of the magnet and then the bulb is directly accessible and can also be replaced.

Von besonderem Vorteil ist es dabei, wenn zwischen der Abdeckung und dem Metallrahmen schwenkbar gelagerte Bügel vorgesehen sind, da dann die Abdeckung beim Abnehmen nicht gehalten werden muss. Diese Bügel können gleichzeitig für die Positionierung der Abdeckung und der Reflektoren zum Gehäuse im geschlossenen Zustand genutzt werden.It is particularly advantageous if pivotally mounted brackets are provided between the cover and the metal frame, since then the cover does not have to be held when removing it. These straps can be used simultaneously for the positioning of the cover and the reflectors to the housing in the closed state.

Die Verbindung zwischen dem jeweils einzusetzenden Reflektor und der Abdeckung erfolgt bevorzugt über klemmend wirkende Stift-Lochverbindungen zwischen dem Umfangsflansch des Reflektors und der Abdeckung.The connection between the reflector to be used in each case and the cover preferably takes place via pin-hole connections which act in a clamping manner between the peripheral flange of the reflector and the cover.

Weitere vorteilhafte Merkmale der Erfindung sind in den Unteransprüchen angegeben und werden im Zusammenhang mit der Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung erläutert; die einzige Figur der Zeichnung zeigt in Form einer Explosionsdarstellung eine bevorzugte Ausführungsform der Erfindung.Further advantageous features of the invention are specified in the subclaims and will be explained in connection with the description of an embodiment with reference to the drawing; the sole figure of the drawing shows in the form of an exploded view of a preferred embodiment of the invention.

Die Zeichnung zeigt als verwendetes Leuchtmittel eine zylindrische LED-Einheit 1, die über eine Bajonettverbindung in eine zylindrische bzw. scheibenförmige Fassung 2 eingesetzt ist. Das Leuchtmittel 1 ist somit auswechselbar, und dies gilt auch für den Fall der Verwendung einer Metalldampflampe als Leuchtmittel, die dann in einer entsprechenden Steckfassung aufgenommen ist.The drawing shows a light source used as a cylindrical LED unit 1, which is inserted via a bayonet connection in a cylindrical or disc-shaped socket 2. The light-emitting means 1 is thus replaceable, and this also applies to the case of using a metal vapor lamp as the light source, which is then accommodated in a corresponding socket.

Im fertigen Downlight ist die Fassung 2 gut wärmeleitend mit einem formmäßig angepassten, massiven Wärmeleitkörper 3 verbunden, insbesondere verschraubt, und dieser massive Wärmeleitkörper 3 bildet gleichzeitig das Endteil des durch Kühlprofile 4, 5 und einen Metallrahmen 8 vervollständigten Gehäuses.In the finished downlight the version 2 is well heat-conducting connected to a shape adapted, solid heat conduction body 3, in particular screwed, and this massive heat conducting 3 simultaneously forms the end of the completed by cooling sections 4, 5 and a metal frame 8 housing.

Die beiden halbzylindrischen Kühlprofile, die außenseitig mit Kühlrippen und innenseitig mit glatten Innenflächen 7 versehen sind, werden durch Schraubverbindungen gegen die Außenfläche des zylindrischen Wärmeleitkörpers gepresst, so dass sich zwischen diesen Teilen eine gute Wärmeleitung ergibt.The two semi-cylindrical cooling profiles, which are provided on the outside with cooling fins and on the inside with smooth inner surfaces 7 are screwed against the outer surface of the cylindrical Wärmeleitkörpers pressed, so that there is a good heat conduction between these parts.

Der Metallrahmen 8, der das Gehäuse nach oben abschließt, wird mit den freien Enden der Kühlprofile 4, 5 verschraubt und bildet bzw. vervollständigt den erforderlichen Raum für den jeweiligen Reflektor 14.The metal frame 8, which closes the housing upwards, is screwed to the free ends of the cooling profiles 4, 5 and forms or completes the space required for the respective reflector 14.

Der Metallrahmen 8 umfasst neben einer mit Kühlluft-Durchtrittsöffnungen 10 versehenen Auflagefläche 9 und einer ebenfalls mit Lüftungsöffnungen 12 versehenen Umfangsfläche 11 eine Stützfläche 13 für den jeweiligen Reflektor-Umfangsflansch 15, welcher wiederum Träger für eine Abdeckung 16 ist, die eine lichtdurchlässige Scheibe haltert. Die Abdeckung 16 und der Reflektorumfangsflansch 15 sind miteinander über Stift-Lochverbindungen verbunden, d.h. diese Verbindung zwischen Reflektor und Abdeckung wird durch Aufpressen von kleinen Bohrungen im Reflektorrand auf entsprechend kleine, an der Abdeckung angeformte Stifte realisiert. Diese Lösung ist besonders kostengünstig.The metal frame 8 comprises in addition to a provided with cooling air passage openings 10 bearing surface 9 and also provided with ventilation openings 12 peripheral surface 11 a support surface 13 for the respective reflector peripheral flange 15, which in turn supports a cover 16 which supports a translucent disc. The cover 16 and the reflector peripheral flange 15 are connected to each other via pin-hole connections, i. this connection between reflector and cover is realized by pressing small holes in the reflector edge on correspondingly small, integrally formed on the cover pins. This solution is particularly cost-effective.

Abdeckung 16 und Reflektor 15 sind über Magnethalterungen 17 am Metallrahmen befestigt, d.h. der Stützrand 13 des Metallrahmens bildet dabei den Gegenpol für die magnetische Halterung der Abdeckung 16, die mit den jeweiligen Reflektoren eine Einheit bildet.Cover 16 and reflector 15 are secured to the metal frame via magnetic supports 17, i. the support edge 13 of the metal frame forms the opposite pole for the magnetic support of the cover 16, which forms a unit with the respective reflectors.

Um sicherzustellen, dass bei einem Öffnen des Downlights, d.h. einem Abnehmen von Abdeckung 16 und Reflektor 14 diese Einheit nicht manuell gehalten werden muss, sind zwischen der Abdeckung 16 und dem Metallrahmen 8 Bügel 18 vorgesehen, die an beiden Teilen schwenkbar gelagert sind und somit sicherstellen, dass Abdeckung 16 und Reflektor 14 im aufgeschwenkten Zustand am Metallrahmen 8 gehalten werden und ein ggf. erforderlicher Leuchtmittelwechsel einfach und schnell durchgeführt werden kann. Gleichzeitig sorgen diese Bügel 18 für die Positionierung der Abdeckung und des jeweiligen Reflektors zum Gehäuse im geschlossenen Zustand.To ensure that when opening the downlight, ie a removal of cover 16 and reflector 14, this unit does not need to be held manually, 8 brackets 18 are provided between the cover 16 and the metal frame, which are pivotally mounted on both parts and thus ensure in that the cover 16 and the reflector 14 are held in the pivoted state on the metal frame 8 and a possibly required lamp change is carried out simply and quickly can be. At the same time, these brackets 18 provide for the positioning of the cover and the respective reflector to the housing in the closed state.

Der Metallrahmen 8 nimmt über geeignete Halterungen 20 auch die Federelemente 19 auf, die zur werkzeuglosen Montage in der jeweiligen Decke vorgesehen sind.The metal frame 8 takes on suitable brackets 20 and the spring elements 19, which are provided for tool-free installation in the respective ceiling.

Das in der Zeichnung dargestellte runde Downlight-System kann in analoger Weise mit quadratischer bzw. rechteckiger Außenkontur realisiert werden.The round downlight system shown in the drawing can be realized in an analogous manner with square or rectangular outer contour.

Hinsichtlich der Wartungskosten wirken sich die staubdichte Ausführungsform, die durch optimale Kühlung erzielbare Langlebigkeit der Leuchtmittel und das einfache Handling beim ggf. erforderlichen Leuchtmittelwechsel vorteilhaft aus.With regard to the maintenance costs, the dustproof embodiment, the achievable by optimal cooling longevity of the bulbs and the ease of handling when necessary to change the bulb affect advantageous.

Durch die konstruktiv einfachen Komponenten lässt sich das System mit relativ geringen Werkzeugkosten realisieren und durch den Einsatz unterschiedlicher Reflektoren schnell an den jeweiligen Einsatzzweck anpassen.Due to the structurally simple components, the system can be realized with relatively low tooling costs and quickly adapted to the respective application by the use of different reflectors.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Leuchtmittel (LED-Einheit)Illuminant (LED unit)
22
Bajonettfassungbayonet mount
33
massiver Wärmeleitkörpermassive heat-conducting body
44
Kühlprofilcooling profile
55
Kühlprofilcooling profile
66
Außenrippenexternal ribs
77
Innenflächeninner surfaces
88th
Metallrahmenmetal frame
99
Auflageflächebearing surface
1010
Lüftungsöffnungvent
1111
Umfangsflächeperipheral surface
1212
Lüftungsöffnungenvents
1313
Stützrandsupporting edge
1414
Reflektorreflector
1515
ReflektorumfangsflanschReflektorumfangsflansch
1616
Abdeckungcover
1717
Haltemagneteholding magnets
1818
Bügelhanger
1919
Federfeather
2020
Halterungbracket

Claims (10)

  1. A downlight system for illuminants in the form of LED modules or halogen metal vapour lamps,
    having a fitting held in a housing for the respective illuminant and having a reception space for a reflector,
    wherein the fitting (2) receiving the illuminant (1) is attached to a solid heat-conductive body (3) in an areally contacting manner, characterised in that
    the heat-conductive body (3) forms a terminal of the housing at the end side whose peripheral wall comprises at least two cooling sections (4, 5) pressed in a form-fitted manner toward the heat-conductive body (3) as well as a metal frame (8) which has vent openings (10, 12), which is screwed to the free ends of the cooling sections (4, 5) and which in particular forms a reflector reception space together with the inner space of a cooling section.
  2. A downlight system in accordance with claim 1,
    characterised in that
    the cooling sections (4, 5) provided with outer ribs (6) and smooth inner surfaces (7) are configured as half-shells in the form of extruded section parts and extend in an axial direction beyond the free end of the respective illuminant (1).
  3. A downlight system in accordance with claim 1,
    characterised in that
    the metal frame (8) lying on the cooling section ends has a support surface (13) for a peripheral reflector flange (15) besides a perforated contact surface (9) and a peripheral surface (11) having openings (12), said peripheral reflector flange simultaneously being a carrier of a cover (16) having a light-permeable disc.
  4. A downlight system in accordance with claim 3,
    characterised in that
    the cover (16) is provided with holding magnets (17) and the support surface (13) of the metal frame (8) forms the opposite pole for the magnetic holder.
  5. A downlight system in accordance with any one of the preceding claims,
    characterised in that
    the cover (16) is configured as downwardly pivotable and is connected to the metal frame (8) using lever elements (18).
  6. A downlight system in accordance with any one of the preceding claims,
    characterised in that
    the peripheral flange (15) of the respective reflector (14) used is fastened to the cover (16), in particular via pin-and-hole connections effecting a clamping.
  7. A downlight system in accordance with any one of the preceding claims,
    characterised in that
    the supporting margin (13) of the metal frame is configured as an installed abutment.
  8. A downlight system in accordance with any one of the preceding claims,
    characterised in that
    spring elements (19) for a tool-free ceiling mounting are held at the metal frame (8).
  9. A downlight system in accordance with any one of the preceding claims,
    characterised in that
    a bayonet coupling is provided between an LED unit (1) and the associated fitting (2) and a plug-in coupling is provided between a HIT unit and the associated fitting.
  10. A downlight system in accordance with any one of the preceding claims,
    characterised in that
    the housing has a cylindrical or parallelepiped-shaped peripheral contour and the flat cover (16), which in particular comprises a cast part, is correspondingly adapted in shape.
EP10003734.0A 2010-04-07 2010-04-07 Downlight system Not-in-force EP2375131B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10003734.0A EP2375131B1 (en) 2010-04-07 2010-04-07 Downlight system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10003734.0A EP2375131B1 (en) 2010-04-07 2010-04-07 Downlight system

Publications (2)

Publication Number Publication Date
EP2375131A1 EP2375131A1 (en) 2011-10-12
EP2375131B1 true EP2375131B1 (en) 2013-06-12

Family

ID=42312816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10003734.0A Not-in-force EP2375131B1 (en) 2010-04-07 2010-04-07 Downlight system

Country Status (1)

Country Link
EP (1) EP2375131B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202521288U (en) * 2012-02-10 2012-11-07 陈少藩 LED (light-emitting diode) down lamp
GB201206576D0 (en) * 2012-04-13 2012-05-30 Connect Electronics Ltd A retrofit light emitting diode lamp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8928479D0 (en) * 1989-12-18 1990-02-21 Light Projects Limited Improvements in or relating to light fittings
AU2002950939A0 (en) * 2002-08-22 2002-09-12 Ian Thomas Craig Downlight protector housing
US7993034B2 (en) * 2007-09-21 2011-08-09 Cooper Technologies Company Reflector having inflection point and LED fixture including such reflector
CN101451662B (en) * 2007-12-07 2011-02-09 富准精密工业(深圳)有限公司 Luminescent diode embedded light
DE202008015129U1 (en) * 2008-11-14 2009-01-29 CERAMATE TECHNICAL CO., LTD., Luch Combined recessed lamp without lampshade

Also Published As

Publication number Publication date
EP2375131A1 (en) 2011-10-12

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