EP2085691A1 - Lamp - Google Patents

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Publication number
EP2085691A1
EP2085691A1 EP09000529A EP09000529A EP2085691A1 EP 2085691 A1 EP2085691 A1 EP 2085691A1 EP 09000529 A EP09000529 A EP 09000529A EP 09000529 A EP09000529 A EP 09000529A EP 2085691 A1 EP2085691 A1 EP 2085691A1
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EP
European Patent Office
Prior art keywords
housing
luminaire according
flow channel
air
container
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.)
Granted
Application number
EP09000529A
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German (de)
French (fr)
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EP2085691B1 (en
Inventor
Christian Sachse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Med licht GmbH
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Publication date
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Publication of EP2085691A1 publication Critical patent/EP2085691A1/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
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F21V23/026—Fastening of transformers or ballasts
    • 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
    • F21V29/15—Thermal insulation

Definitions

  • the present invention relates to a luminaire, in particular suspended luminaire, with a reflector forming a receiving space for a luminous means, a bottom part and a housing adjoining the reflector on the bottom side.
  • Illuminants of any kind do not convert a considerable part of the power consumed by them into light but into heat, so that the luminaires carrying the illuminants become correspondingly hot.
  • the temperature of the housing of the lamp of the type mentioned can reach values that lead to the failure or destruction of housed in the housing temperature-sensitive electronic components.
  • such electronic components are therefore arranged at a sufficient distance from the housing. This has an additional installation effort result and also leads to an aesthetically unsatisfactory appearance.
  • due to long cable lengths between the electronic components and the lamp it can also lead to malfunction.
  • Object of the present invention is to provide a luminaire of the type mentioned, which makes it possible electronic components even when using bulbs of high power in the housing to order.
  • This object is essentially achieved by at least partially engaging in the housing an electronic components, in particular a ballast receiving container and at least one the container against disturbing heat shielding Vietnameseleitwandung are provided such that between the housing and the shipsleitwandung in the direction an air outlet opening tapering flow channel is formed, which communicates with at least one formed in the bottom part of the air inlet opening in flow communication with the receiving space.
  • a lamp arranged in the reflector heats the air surrounding the luminous means, which presses upward to form a hot air accumulation in the reflector and thus against the bottom part of the luminaire.
  • the heated air then passes through preferably a plurality of air inlet openings in the at least one flow channel of the lamp.
  • the electronic components receiving container is shielded by the at least one Heilleitwandung against the heated air. The Heilleitwandung thus prevents the heated air to the container in which, for example, an electronic ballast may be able to penetrate.
  • the heated air in the flow channel is accelerated due to the tapered cross section of the flow channel.
  • the heated air therefore has a low static pressure in the region of the air outlet opening of the flow channel, so that rapid mixing with cooler ambient air can take place in the outflow region of the flow channel.
  • two such, diametrically opposite shipsleitwandiers are provided in the housing and the container is held in the space between and at a distance from the two diverging shipsleitwandungen so that the heated air rise on both sides of the then in particular centrally arranged container and past it can.
  • the two Heilleitwandungen can be designed as a common Gutleitteil.
  • At least one cold air duct is provided between each flow channel and the container receiving the electronic components, whose at least one inlet opening formed in the housing wall and the outlet opening in the outflow of the one Suction effect in the cold air duct causing heated air of the associated flow channel is located.
  • this causes a further cooling of the heated air emerging from the flow channel.
  • the cold air duct is a kind of cooling jacket for the container receiving space.
  • a pendant lamp is shown with a cylindrical housing 11 made of stainless steel, at the lower end of a cup-shaped reflector 13 connects, which forms a receiving space 15 for a non-illustrated illuminant and which is supported on a separately formed bottom plate 17 on the housing 11.
  • a bulb holder 19 Through the center of the bottom plate 17 extends through a bulb holder 19, which extends into the receiving space 15 and into which the light source for the lamp, for example, a high-pressure gas discharge lamp, can be screwed.
  • the bulb holder 19 is supported on the reflector 13 opposite side of the bottom plate 17 on a housing-fixed support member 55 to which an air guide 21 is fixed, which is formed as a U-shaped angle plate.
  • the two with respect to a housing axis 31 ( Fig. 2 ) opposite leg surfaces of the angle plate each form a substantially planar Lucasleitwandung 23 and are connected to each other via a parallel to the bottom plate 17 extending base wall 51.
  • the support member 55 is welded to the underside of the base wall 51, holds the bulb holder 19 and is further bolted to the housing 11. In addition, two bolts are attached to the support member 55, which extend in the direction of the reflector 13 and which serve to hold the bottom plate 17.
  • the Heilleitwandungen 23 and the base wall 51 abut with their lateral boundary edges respectively on the inner wall of the housing 11. In principle, however, it is also possible that the Heilleitwandungen 23 and / or the base wall 51 are arranged slightly spaced from the inner wall of the housing 11.
  • the shipsleitwandungen 23 extend at an acute angle to the housing axis 31 obliquely upward and are inclined towards the outside to the housing 11, so that between the Heilleitwandungen 23 and the housing 11, tapered flow channels 25 are formed.
  • the cross section of the flow channels 25 is thereby reduced along the housing axis 31 in the flow direction by more than 50% in each case.
  • the two flow channels 25 may be at their lower ends, i. in the region of the bottom plate 17 and the base wall 51, fluidly connected to one another or else be separated from each other.
  • the bottom plate 17 has in the region of the flow channels 25 each have a group of air inlet slots 27 ( Fig. 2 ), through which the flow channels 25 are respectively fluidly connected to the receiving space 15 for the lighting means. At their upper end, the flow channels 25 each pass into an air outlet opening 29 (FIG. Fig. 3 ).
  • the respective air outlet opening 29 is bounded by the end of the respective Heilleitwandung 23 and the respective Heilleitwandung 23 opposite housing.
  • ballast 35 is housed in a container 47 for this purpose.
  • the container 47 dives only partially into the free space 33.
  • the container 47 is radially beyond the housing 11 with its two lateral ends. This is made possible by two diametrically opposite, formed in the housing 11 recesses into which the container 47 engages without contact. With further miniaturization, a container can be used which finds a total space within the housing.
  • the air guide 21 is connected via two support elements 49, of which in Fig. 1 only one is recognizable, connected to the container 47, via which the suspension of the suspension can be done.
  • Each of the two support members 49 is formed as a threaded tube, on which a spacer sleeve is pushed, which extends between the container 47 and the base wall 51, wherein the fixation of the container 47 and the shipsleitteils 21 takes place on each other screwed onto the ends of the threaded tube nuts , Within at least one of the threaded tubes run the electrical leads for the lamp.
  • the ballast 35 is optimally protected against disturbing heating.
  • the pendant lamp according to Fig. 4 is provided in addition to the air guide 21, which is used to form the flow channels 25, which can be regarded as a first cooling stage, another air guide 37 with two leg surfaces or Heilleitwandungen 39 and a base wall 53.
  • the further air guide part 37 is formed at least substantially identically to the air guide part 21 and arranged downstream of it in the flow direction.
  • the shipsleitwandungen 39 and the base wall 53 of the further Heilteils 37 are located with their lateral boundary edges on the housing inner wall or may be arranged slightly spaced from the housing inner wall.
  • the cold air ducts 41 represent a second cooling stage, which is connected downstream of the first cooling stage in a cascade.
  • the cold air channels 41 are divided into the housing 11 formed cold air inlet slots 43, which in Fig. 4 can be seen in the form of dashed lines.
  • the two cold air channels 41 are connected to one another at their lower ends in the area of the cold air inlet space located between the base wall 51 and the base wall 53. In principle, however, it is also conceivable that at least one separate cold air inlet slot is provided for each of the two cold air ducts 41 and the two cold air ducts 41 are fluidically separated from one another.
  • the air inlet slots 27 of the flow channels 25 are in the view in Fig. 4 arranged on both sides of the housing axis 31.
  • the cold air inlet slots 43 of the cold air channels 41 are in the view in Fig. 4 arranged in front of the housing axis 31.
  • the air inlet slots 27 are therefore offset in the circumferential direction of the housing 11 relative to the cold air inlet slots 43 each by 90 °.
  • the cold air ducts 41 each have a cold air outlet opening 45 which lie in the outflow region of the respective associated flow duct 25.
  • the cold air outlet opening 45 of each cold air channel 41 is bounded by the end of the Lucasleitwandung 23 of the associated flow channel 25 and the end of the further Dunleitwandung 39 of the cold air duct 41.
  • the mutual distance of the ends of the Lucasleitwandungen 23, 39 of the flow channel 25 and cold air channel 41 in the flow direction is greater than the distance between the Lucasleitwandache 23, 39 of the channels 29, 41 in the direction of a normal to the Lucasleitwanditch 23, 39.
  • a cold air intake instead of the cold air is heated by the ascending in the flow channels 25 Air in the manner of a Venturi nozzle or water jet pump thereby sucked from outside the housing 11 through the cold air inlet slots 43 and through the cold air channels 41 to be mixed in the outflow of the flow channels 25 with the heated air from the flow channels 25.
  • the cold air channels 41 create a barrier of cold air, which effectively prevents heat transfer from the heated air flowing through the flow channels 25 to the ballast 35.
  • ballast 35 can be better protected against excessive heating.

Abstract

The lamp has a reflector (13) forming a retaining area (15) for a lighting unit, and a base part (17) and a housing (11) connected to the reflector. A container (47) accommodating a ballast and an air conducting wall (23) screening the container against the disturbing heat effect are arranged in the housing, in such a manner that a flow channel (25) projecting in the direction of an air outlet opening (29) is formed between the housing and the air conducting wall. The flow channel remains in flow connection with the retaining area over an air inlet opening (27) formed in the base part.

Description

Die vorliegende Erfindung betrifft eine Leuchte, insbesondere Hängeleuchte, mit einem einen Aufnahmeraum für ein Leuchtmittel bildenden Reflektor, einem Bodenteil und einem sich bodenseitig an den Reflektor anschließenden Gehäuse.The present invention relates to a luminaire, in particular suspended luminaire, with a reflector forming a receiving space for a luminous means, a bottom part and a housing adjoining the reflector on the bottom side.

Leuchtmittel jeder Art setzen einen erheblichen Teil der von ihnen verbrauchten Leistung nicht in Licht sondern in Wärme um, so dass die die Leuchtmittel tragenden Leuchten entsprechend heiß werden. Bei Verwendung von Leuchtmitteln hoher Leistung kann die Temperatur des Gehäuses der Leuchte der eingangs genannten Art Werte erreichen, die zum Ausfall oder zur Zerstörung von im Gehäuse aufgenommenen temperaturempfindlichen elektronischen Komponenten führen. Dies gilt beispielsweise für ein Vorschaltgerät, das die Möglichkeit bietet, eine Hochdruck-Gasentladungslampe zu dimmen oder deren Leistung in Abhängigkeit von der Helligkeit des Umgebungslichts zu regeln. Bei bekannten Leuchten werden derartige elektronische Komponenten daher in einem ausreichenden Abstand zu dem Gehäuse angeordnet. Dies hat einen zusätzlichen Montageaufwand zur Folge und führt überdies zu einem in ästhetischer Hinsicht unbefriedigenden Erscheinungsbild. Des Weiteren kann es aufgrund von großen Leitungslängen zwischen den elektronischen Komponenten und der Leuchte auch zu Funktionsstörungen kommen.Illuminants of any kind do not convert a considerable part of the power consumed by them into light but into heat, so that the luminaires carrying the illuminants become correspondingly hot. When using bulbs of high power, the temperature of the housing of the lamp of the type mentioned can reach values that lead to the failure or destruction of housed in the housing temperature-sensitive electronic components. This applies, for example, to a ballast which offers the possibility of dimming a high-pressure gas discharge lamp or regulating its power as a function of the brightness of the ambient light. In known luminaires, such electronic components are therefore arranged at a sufficient distance from the housing. This has an additional installation effort result and also leads to an aesthetically unsatisfactory appearance. Furthermore, due to long cable lengths between the electronic components and the lamp, it can also lead to malfunction.

Aufgabe der vorliegenden Erfindung ist es, eine Leuchte der eingangs genannten Art zu schaffen, die es ermöglicht, elektronische Komponenten auch bei Verwendung von Leuchtmitteln hoher Leistung in dem Gehäuse anzuordnen.Object of the present invention is to provide a luminaire of the type mentioned, which makes it possible electronic components even when using bulbs of high power in the housing to order.

Diese Aufgabe wird im Wesentlichen dadurch gelöst, dass zumindest zum Teil in das Gehäuse eingreifend ein elektronische Komponenten, insbesondere ein Vorschaltgerät aufnehmendes Behältnis und wenigstens eine das Behältnis gegen störende Wärmeeinwirkung abschirmende Luftleitwandung derart vorgesehen sind, dass zwischen dem Gehäuse und der Luftleitwandung ein sich in Richtung einer Luftaustrittsöffnung verjüngender Strömungskanal gebildet ist, der über zumindest eine im Bodenteil ausgebildete Lufteintrittsöffnung in Strömungsverbindung mit dem Aufnahmeraum steht.This object is essentially achieved by at least partially engaging in the housing an electronic components, in particular a ballast receiving container and at least one the container against disturbing heat shielding Luftleitwandung are provided such that between the housing and the Luftleitwandung in the direction an air outlet opening tapering flow channel is formed, which communicates with at least one formed in the bottom part of the air inlet opening in flow communication with the receiving space.

Im Betrieb erhitzt ein in dem Reflektor angeordnetes Leuchtmittel die das Leuchtmittel umgebende Luft, die unter Ausbildung eines Warmluftstaus in dem Reflektor nach oben und damit gegen das Bodenteil der Leuchte drückt. Die erhitzte Luft gelangt dann durch bevorzugt mehrere Lufteintrittsöffnungen in den wenigstens einen Strömungskanal der Leuchte. Das die elektronischen Komponenten aufnehmende Behältnis ist dabei durch die wenigstens eine Luftleitwandung gegen die erhitzte Luft abgeschirmt. Die Luftleitwandung verhindert also, dass die erhitzte Luft zu dem Behältnis, in dem sich beispielsweise ein elektronisches Vorschaltgerät befinden kann, vordringen kann.In operation, a lamp arranged in the reflector heats the air surrounding the luminous means, which presses upward to form a hot air accumulation in the reflector and thus against the bottom part of the luminaire. The heated air then passes through preferably a plurality of air inlet openings in the at least one flow channel of the lamp. The electronic components receiving container is shielded by the at least one Luftleitwandung against the heated air. The Luftleitwandung thus prevents the heated air to the container in which, for example, an electronic ballast may be able to penetrate.

Darüber hinaus wird die erhitzte Luft im Strömungskanal aufgrund des sich verjüngenden Querschnitts des Strömungskanals beschleunigt. Die erhitzte Luft weist im Bereich der Luftaustrittsöffnung des Strömungskanals daher einen geringen statischen Druck auf, so dass im Ausströmbereich des Strömungskanals eine rasche Durchmischung mit kühlerer Umgebungsluft stattfinden kann.In addition, the heated air in the flow channel is accelerated due to the tapered cross section of the flow channel. The heated air therefore has a low static pressure in the region of the air outlet opening of the flow channel, so that rapid mixing with cooler ambient air can take place in the outflow region of the flow channel.

Bevorzugt sind in dem Gehäuse zwei derartige, sich diametral gegenüberliegende Luftleitwandungen vorgesehen und das Behältnis ist in dem Freiraum zwischen und mit Abstand zu den beiden divergierenden Luftleitwandungen gehaltert, so dass die erhitzte Luft zu beiden Seiten des dann insbesondere mittig angeordneten Behältnisses und an diesem vorbei aufsteigen kann. Die beiden Luftleitwandungen können dabei als ein gemeinsames Luftleitteil ausgebildet sein.Preferably, two such, diametrically opposite Luftleitwandungen are provided in the housing and the container is held in the space between and at a distance from the two diverging Luftleitwandungen so that the heated air rise on both sides of the then in particular centrally arranged container and past it can. The two Luftleitwandungen can be designed as a common Luftleitteil.

Insbesondere für den Fall, dass ein Leuchtmittel mit besonders hoher Leistung verwendet wird, ist es vorteilhaft, wenn zwischen jedem Strömungskanal und dem die Elektronikkomponenten aufnehmenden Behältnis zumindest ein Kaltluftkanal vorgesehen ist, dessen wenigstens eine Eintrittsöffnung in der Gehäusewandung ausgebildet und dessen Austrittsöffnung im Ausströmbereich der eine Saugwirkung im Kaltluftkanal bewirkenden erhitzten Luft des zugeordneten Strömungskanals gelegen ist. Dies bewirkt einerseits eine weitere Abkühlung der aus dem Strömungskanal austretenden erhitzten Luft. Andererseits stellt der Kaltluftkanal eine Art Kühlmantel für den das Behältnis aufnehmenden Freiraum dar.In particular, for the case that a light source is used with very high power, it is advantageous if at least one cold air duct is provided between each flow channel and the container receiving the electronic components, whose at least one inlet opening formed in the housing wall and the outlet opening in the outflow of the one Suction effect in the cold air duct causing heated air of the associated flow channel is located. On the one hand, this causes a further cooling of the heated air emerging from the flow channel. On the other hand, the cold air duct is a kind of cooling jacket for the container receiving space.

Weitere vorteilhafte Ausgestaltungen und Merkmale der Erfindung sind in den Unteransprüchen angegeben und/oder werden nachfolgend im Zusammenhang mit der Beschreibung zweier Ausführungsbeispiele erläutert.Further advantageous embodiments and features of the invention are specified in the dependent claims and / or will be explained below in connection with the description of two embodiments.

Es zeigen, jeweils in schematischer Darstellung,

Fig. 1
eine aufgebrochene Perspektivansicht einer Hängeleuchte gemäß einer ersten Ausführungsform der Erfindung,
Fig. 2
eine Darstellung der Hängeleuchte aus Fig. 1 von unten,
Fig. 3
einen Ausschnitt aus einer Draufsicht auf die Hängeleuchte von Fig. 1, und
Fig. 4
einen Axialschnitt durch eine Hängeleuchte gemäß einer zweiten Ausführungsform der Erfindung.
They show, in each case in a schematic representation,
Fig. 1
1 is a broken perspective view of a suspension lamp according to a first embodiment of the invention,
Fig. 2
a representation of the hanging lamp Fig. 1 from underneath,
Fig. 3
a detail of a top view of the pendant of Fig. 1 , and
Fig. 4
an axial section through a pendant lamp according to a second embodiment of the invention.

In Fig. 1 ist eine Hängeleuchte mit einem zylindrischen Gehäuse 11 aus Edelstahl dargestellt, an dessen unterem Ende ein topfförmiger Reflektor 13 anschließt, der einen Aufnahmeraum 15 für ein nicht dargestelltes Leuchtmittel bildet und der über eine separat ausgebildete Bodenplatte 17 an dem Gehäuse 11 gehaltert ist. Durch das Zentrum der Bodenplatte 17 hindurch erstreckt sich eine Leuchtmittelfassung 19, die in den Aufnahmeraum 15 hineinreicht und in die das Leuchtmittel für die Leuchte, beispielsweise eine Hochdruck-Gasentladungslampe, einschraubbar ist.In Fig. 1 a pendant lamp is shown with a cylindrical housing 11 made of stainless steel, at the lower end of a cup-shaped reflector 13 connects, which forms a receiving space 15 for a non-illustrated illuminant and which is supported on a separately formed bottom plate 17 on the housing 11. Through the center of the bottom plate 17 extends through a bulb holder 19, which extends into the receiving space 15 and into which the light source for the lamp, for example, a high-pressure gas discharge lamp, can be screwed.

Die Leuchtmittelfassung 19 ist auf der dem Reflektor 13 gegenüberliegenden Seite der Bodenplatte 17 an einem gehäusefesten Trägerteil 55 gehaltert, an dem ein Luftleitteil 21 befestigt ist, das als U-förmiges Winkelblech ausgebildet ist. Die beiden sich bezüglich einer Gehäuseachse 31 (Fig. 2) gegenüberliegenden Schenkelflächen des Winkelblechs bilden jeweils eine im Wesentlichen ebene Luftleitwandung 23 und sind über eine sich parallel zu der Bodenplatte 17 erstreckende Basiswand 51 miteinander verbunden.The bulb holder 19 is supported on the reflector 13 opposite side of the bottom plate 17 on a housing-fixed support member 55 to which an air guide 21 is fixed, which is formed as a U-shaped angle plate. The two with respect to a housing axis 31 ( Fig. 2 ) opposite leg surfaces of the angle plate each form a substantially planar Luftleitwandung 23 and are connected to each other via a parallel to the bottom plate 17 extending base wall 51.

Das Trägerteil 55 ist an der Unterseite der Basiswand 51 angeschweißt, hält die Leuchtmittelfassung 19 und ist ferner mit dem Gehäuse 11 verschraubt. Darüber hinaus sind an dem Trägerteil 55 zwei Bolzen befestigt, die sich in Richtung Reflektor 13 erstrecken und die zur Halterung der Bodenplatte 17 dienen.The support member 55 is welded to the underside of the base wall 51, holds the bulb holder 19 and is further bolted to the housing 11. In addition, two bolts are attached to the support member 55, which extend in the direction of the reflector 13 and which serve to hold the bottom plate 17.

Die Luftleitwandungen 23 und die Basiswand 51 liegen mit ihren seitlichen Begrenzungskanten jeweils an der Innenwand des Gehäuses 11 an. Grundsätzlich ist es jedoch auch möglich, dass die Luftleitwandungen 23 und/oder die Basiswand 51 geringfügig von der Innenwand des Gehäuses 11 beabstandet angeordnet sind.The Luftleitwandungen 23 and the base wall 51 abut with their lateral boundary edges respectively on the inner wall of the housing 11. In principle, however, it is also possible that the Luftleitwandungen 23 and / or the base wall 51 are arranged slightly spaced from the inner wall of the housing 11.

Die Luftleitwandungen 23 erstrecken sich unter einem spitzen Winkel zur Gehäuseachse 31 schräg nach oben und sind nach außen zum Gehäuse 11 hin geneigt, so dass zwischen den Luftleitwandungen 23 und dem Gehäuse 11 sich verjüngende Strömungskanäle 25 gebildet sind. Der Querschnitt der Strömungskanäle 25 ist dabei entlang der Gehäuseachse 31 in Strömungsrichtung jeweils um mehr als 50% reduziert. Die beiden Strömungskanäle 25 können an ihren unteren Enden, d.h. im Bereich der Bodenplatte 17 bzw. der Basiswand 51, strömungstechnisch miteinander verbunden oder aber auch voneinander getrennt sein.The Luftleitwandungen 23 extend at an acute angle to the housing axis 31 obliquely upward and are inclined towards the outside to the housing 11, so that between the Luftleitwandungen 23 and the housing 11, tapered flow channels 25 are formed. The cross section of the flow channels 25 is thereby reduced along the housing axis 31 in the flow direction by more than 50% in each case. The two flow channels 25 may be at their lower ends, i. in the region of the bottom plate 17 and the base wall 51, fluidly connected to one another or else be separated from each other.

Die Bodenplatte 17 weist im Bereich der Strömungskanäle 25 jeweils eine Gruppe von Lufteintrittsschlitzen 27 auf (Fig. 2), durch die die Strömungskanäle 25 jeweils an den Aufnahmeraum 15 für das Leuchtmittel strömungstechnisch angeschlossen sind. An ihrem oberen Ende gehen die Strömungskanäle 25 jeweils in eine Luftaustrittsöffnung 29 über (Fig. 3). Die jeweilige Luftaustrittsöffnung 29 wird dabei von dem Ende der jeweiligen Luftleitwandung 23 und der der jeweiligen Luftleitwandung 23 gegenüberliegenden Gehäusewandung begrenzt.The bottom plate 17 has in the region of the flow channels 25 each have a group of air inlet slots 27 ( Fig. 2 ), through which the flow channels 25 are respectively fluidly connected to the receiving space 15 for the lighting means. At their upper end, the flow channels 25 each pass into an air outlet opening 29 (FIG. Fig. 3 ). The respective air outlet opening 29 is bounded by the end of the respective Luftleitwandung 23 and the respective Luftleitwandung 23 opposite housing.

Zwischen den beiden Strömungskanälen 25 ist ein innerhalb des Gehäuses 11 liegender Freiraum 33 vorgesehen, in den mit Abstand zu den beiden Luftleitwandungen 23 ein insbesondere flachquaderförmiges Vorschaltgerät 35 für eine Hochdruck-Gasentladungslampe aufgenommen ist. Das Vorschaltgerät 35 ist hierzu in einem Behältnis 47 untergebracht. Das Behältnis 47 taucht dabei nur teilweise in den Freiraum 33 ein. Außerdem steht das Behältnis 47 mit seinen beiden seitlichen Enden radial über das Gehäuse 11 hinaus. Dies wird durch zwei diametral gegenüberliegende, in dem Gehäuse 11 ausgebildete Ausnehmungen ermöglicht, in die das Behältnis 47 berührungslos eingreift. Bei weiterer Miniaturisierung kann auch ein Behältnis Verwendung finden, das insgesamt innerhalb des Gehäuses Platz findet.Between the two flow channels 25 a lying within the housing 11 space 33 is provided in the distance to the two Luftleitwandungen 23 a particular flat-square ballast 35 is received for a high-pressure gas discharge lamp. The ballast 35 is housed in a container 47 for this purpose. The container 47 dives only partially into the free space 33. In addition, the container 47 is radially beyond the housing 11 with its two lateral ends. This is made possible by two diametrically opposite, formed in the housing 11 recesses into which the container 47 engages without contact. With further miniaturization, a container can be used which finds a total space within the housing.

Das Luftleitteil 21 ist über zwei Tragelemente 49, von denen in Fig. 1 nur eines erkennbar ist, mit dem Behältnis 47, über das die Aufhängung der Hängeleuchte erfolgt kann, verbunden. Ein jedes der beiden Tragelemente 49 ist als Gewinderohr ausgebildet, auf das eine Distanzhülse aufgeschoben ist, die sich zwischen dem Behältnis 47 und der Basiswand 51 erstreckt, wobei die Fixierung des Behältnisses 47 und des Luftleitteils 21 aneinander über auf die Enden des Gewinderohrs aufgeschraubte Muttern erfolgt. Innerhalb wenigstens eines der Gewinderohre verlaufen die elektrischen Zuleitungen für das Leuchtmittel.The air guide 21 is connected via two support elements 49, of which in Fig. 1 only one is recognizable, connected to the container 47, via which the suspension of the suspension can be done. Each of the two support members 49 is formed as a threaded tube, on which a spacer sleeve is pushed, which extends between the container 47 and the base wall 51, wherein the fixation of the container 47 and the Luftleitteils 21 takes place on each other screwed onto the ends of the threaded tube nuts , Within at least one of the threaded tubes run the electrical leads for the lamp.

Die vorstehend anhand der Fig. 1 bis 3 beschriebene Hängeleuchte ist zumindest im Wesentlichen spiegelsymmetrisch ausgebildet.The above based on the Fig. 1 to 3 Hanging lamp described is at least substantially mirror-symmetrical design.

Im Betrieb steigt durch das Leuchtmittel in dem Aufnahmeraum 15 des Reflektors 13 erhitzte Luft aufgrund des sich dort bildenden Warmluftstaus durch die Lufteintrittsschlitze 27 in die beiden Strömungskanäle 25. Dort strömt die erhitzte Luft aufgrund des sich nach oben verjüngenden Querschnitts der beiden Strömungskanäle 25 beschleunigt weiter, um die beiden Strömungskanäle 25 durch die beiderseits des Vorschaltgeräts 35 und zu diesem beabstandet angeordneten Luftaustrittsöffnungen 29 wieder zu verlassen. Da die erhitzte Luft aufgrund ihrer Geschwindigkeit einen geringen statischen Druck aufweist, kommt es außerdem zu einer raschen Durchmischung mit kühlerer Umgebungsluft und entsprechender Luftabführung. Da die Luftleitwandungen 23 und die Basiswand 51 an der Innenwand des Gehäuses 11 anliegen oder nur wenig von dieser beabstandet angeordnet sind, dringt keine oder kaum erhitzte Luft in den Freiraum 33 vor, in dem das Vorschaltgerät 35 aufgenommen ist.In operation, heated by the light source in the receiving space 15 of the reflector 13 heated air due to the there formed hot air accumulation through the air inlet slots 27 in the two flow channels 25. There, the heated air flows due to the upwardly tapering cross-section of the two flow channels 25 continues to accelerate around the two flow channels 25 through the both sides of the ballast 35th and at this spaced-apart air outlet openings 29 to leave again. Since the heated air has a low static pressure due to its speed, it also comes to a rapid mixing with cooler ambient air and appropriate air discharge. Since the Luftleitwandungen 23 and the base wall 51 rest against the inner wall of the housing 11 or are arranged only slightly spaced therefrom, penetrates little or no heated air in the free space 33, in which the ballast 35 is received.

Durch den vorstehend erläuterten Aufbau wird das Vorschaltgerät 35 optimal vor störender Erwärmung geschützt.Due to the above-described construction, the ballast 35 is optimally protected against disturbing heating.

Bei der Hängeleuchte gemäß Fig. 4 ist neben dem Luftleitteil 21, das zur Ausbildung der Strömungskanäle 25 verwendet wird, die als eine erste Kühlstufe angesehen werden können, ein weiteres Luftleitteil 37 mit zwei Schenkelflächen oder Luftleitwandungen 39 und einer Basiswand 53 vorgesehen. Das weitere Luftleitteil 37 ist zumindest im Wesentlichen identisch zu dem Luftleitteil 21 ausgebildet und diesem in Strömungsrichtung beabstandet nachgeordnet. Auch die Luftleitwandungen 39 und die Basiswand 53 des weiteren Luftleitteils 37 liegen mit ihren seitlichen Begrenzungskanten an der Gehäuseinnenwand an oder können geringfügig von der Gehäuseinnenwand beabstandet angeordnet sein.For the pendant lamp according to Fig. 4 is provided in addition to the air guide 21, which is used to form the flow channels 25, which can be regarded as a first cooling stage, another air guide 37 with two leg surfaces or Luftleitwandungen 39 and a base wall 53. The further air guide part 37 is formed at least substantially identically to the air guide part 21 and arranged downstream of it in the flow direction. The Luftleitwandungen 39 and the base wall 53 of the further Luftleitteils 37 are located with their lateral boundary edges on the housing inner wall or may be arranged slightly spaced from the housing inner wall.

Hierdurch werden zwischen dem das Vorschaltgerät 35 aufnehmenden Behältnis 47 und den Strömungskanälen 25 durch das erste Luftleitteil 21 und das weitere Luftleitteil 37 zwei einander diametral gegenüberliegende Kaltluftkanäle 41 geschaffen. Die Kaltluftkanäle 41 stellen eine zweite Kühlstufe dar, die der ersten Kühlstufe kaskadenartig nachgeschaltet ist.As a result, two diametrically opposed cold air ducts 41 are created between the ballast 35 receiving container 47 and the flow channels 25 through the first air guide 21 and the other air guide 37. The cold air ducts 41 represent a second cooling stage, which is connected downstream of the first cooling stage in a cascade.

Die Kaltluftkanäle 41 teilen sich in dem Gehäuse 11 ausgebildete Kaltlufteintrittsschlitze 43, die in Fig. 4 in Form von gestrichelt gezeichneten Linien erkennbar sind. Die beiden Kaltluftkanäle 41 sind an ihren unteren Enden im Bereich des zwischen der Basiswand 51 und der Basiswand 53 befindlichen Kaltlufteintrittsraums miteinander verbunden. Grundsätzlich ist jedoch auch denkbar, dass für jeden der beiden Kaltluftkanäle 41 wenigstens ein eigener Kaltlufteintrittsschlitz vorgesehen ist und die beiden Kaltluftkanäle 41 strömungstechnisch voneinander getrennt sind.The cold air channels 41 are divided into the housing 11 formed cold air inlet slots 43, which in Fig. 4 can be seen in the form of dashed lines. The two cold air channels 41 are connected to one another at their lower ends in the area of the cold air inlet space located between the base wall 51 and the base wall 53. In principle, however, it is also conceivable that at least one separate cold air inlet slot is provided for each of the two cold air ducts 41 and the two cold air ducts 41 are fluidically separated from one another.

Die Lufteintrittsschlitze 27 der Strömungskanäle 25 sind in der Ansicht in Fig. 4 beiderseits der Gehäuseachse 31 angeordnet. Die Kaltlufteintrittsschlitze 43 der Kaltluftkanäle 41 sind in der Ansicht in Fig. 4 vor der Gehäuseachse 31 angeordnet. Die Lufteintrittsschlitze 27 sind daher in Umfangsrichtung des Gehäuses 11 gegenüber den Kaltlufteintrittsschlitzen 43 jeweils um 90° versetzt.The air inlet slots 27 of the flow channels 25 are in the view in Fig. 4 arranged on both sides of the housing axis 31. The cold air inlet slots 43 of the cold air channels 41 are in the view in Fig. 4 arranged in front of the housing axis 31. The air inlet slots 27 are therefore offset in the circumferential direction of the housing 11 relative to the cold air inlet slots 43 each by 90 °.

Ferner weisen die Kaltluftkanäle 41 jeweils eine Kaltluftaustrittsöffnung 45 auf, die im Ausströmbereich des jeweils zugeordneten Strömungskanals 25 liegen. Die Kaltluftaustrittsöffnung 45 eines jeden Kaltluftkanals 41 ist dabei von dem Ende der Luftleitwandung 23 des zugehörigen Strömungskanals 25 und dem Ende der weiteren Luftleitwandung 39 des Kaltluftkanals 41 begrenzt. Der gegenseitige Abstand der Enden der Luftleitwandungen 23, 39 von Strömungskanal 25 und Kaltluftkanal 41 in Strömungsrichtung ist größer als der Abstand zwischen den Luftleitwandungen 23, 39 der Kanäle 29, 41 in Richtung einer Normalen zu den Luftleitwandungen 23, 39.Furthermore, the cold air ducts 41 each have a cold air outlet opening 45 which lie in the outflow region of the respective associated flow duct 25. The cold air outlet opening 45 of each cold air channel 41 is bounded by the end of the Luftleitwandung 23 of the associated flow channel 25 and the end of the further Luftleitwandung 39 of the cold air duct 41. The mutual distance of the ends of the Luftleitwandungen 23, 39 of the flow channel 25 and cold air channel 41 in the flow direction is greater than the distance between the Luftleitwandungen 23, 39 of the channels 29, 41 in the direction of a normal to the Luftleitwandungen 23, 39.

Im Gegensatz zu der Hängeleuchte gemäß den Fig. 1 bis 3 findet bei der Hängeleuchte gemäß Fig. 4 zusätzlich eine Kaltluftansaugung statt. Die Kaltluft wird von der in den Strömungskanälen 25 aufsteigenden erhitzten Luft nach Art einer Venturi-Düse oder Wasserstrahlpumpe dabei von außerhalb des Gehäuses 11 durch die Kaltlufteintrittsschlitze 43 und durch die Kaltluftkanäle 41 hindurch angesaugt, um im Ausströmbereich der Strömungskanäle 25 mit der erhitzten Luft aus den Strömungskanälen 25 vermischt zu werden. Dabei schaffen die Kaltluftkanäle 41 eine Barriere aus kalter Luft, die eine Wärmeübertragung von der durch die Strömungskanäle 25 strömenden erhitzten Luft an das Vorschaltgerät 35 effektiv verhindert.In contrast to the suspension lamp according to the Fig. 1 to 3 takes place according to the hanging lamp Fig. 4 in addition a cold air intake instead. The cold air is heated by the ascending in the flow channels 25 Air in the manner of a Venturi nozzle or water jet pump thereby sucked from outside the housing 11 through the cold air inlet slots 43 and through the cold air channels 41 to be mixed in the outflow of the flow channels 25 with the heated air from the flow channels 25. Here, the cold air channels 41 create a barrier of cold air, which effectively prevents heat transfer from the heated air flowing through the flow channels 25 to the ballast 35.

Durch den weitergebildeten Aufbau gemäß Fig. 4 kann das Vorschaltgerät 35 noch besser vor übermäßiger Erwärmung geschützt werden.Due to the advanced structure according to Fig. 4 For example, the ballast 35 can be better protected against excessive heating.

Grundsätzlich ist es möglich, dass noch weitere Kühlstufen nach Art der zweiten Kühlstufe vorgesehen werden, wobei dann jede weitere Kühlstufe der jeweils vorhergehenden Kühlstufe entsprechend der vorstehend beschriebenen Art nachgeschaltet ist. Dies ist insbesondere bei weiter steigender Leistung der Leuchtmittel und einem damit verbundenen erhöhten Bedarf an Kühlung bzw. Wärmeabfuhr vorteilhaft.In principle, it is possible that further cooling stages are provided in the manner of the second cooling stage, in which case each further cooling stage of the respective preceding cooling stage is connected downstream according to the type described above. This is particularly advantageous in the case of further increasing power of the lighting means and an associated increased need for cooling or heat dissipation.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1111
Gehäusecasing
1313
Reflektorreflector
1515
Aufnahmeraum für ein LeuchtmittelRecording room for a light source
1717
Bodenground
1919
LeuchtmittelfassungLamp holder
2121
Luftleitteilair guide
2323
Luftleitwandungair guide
2525
Strömungskanalflow channel
2727
LufteintrittsschlitzAir inlet slot
2929
LuftaustrittsöffnungAir outlet opening
3131
Gehäuseachsehousing axis
3333
Freiraumfree space
3535
Vorschaltgerätballast
3737
weiteres Luftleitteilanother air guide
3939
weitere Luftleitwandungfurther air duct wall
4141
KaltluftkanalCold air duct
4343
KaltlufteintrittsschlitzCold air inlet slot
4545
KaltluftaustrittsöffnungCold air outlet opening
4747
Behältniscontainer
4949
Tragelementsupporting member
5151
Basiswandbase wall
5353
weitere Basiswandanother base wall
5555
Trägerteilsupport part

Claims (15)

Leuchte, insbesondere Hängeleuchte, mit einem einen Aufnahmeraum (15) für ein Leuchtmittel bildenden Reflektor (13), einem Bodenteil (17) und einem sich bodenseitig an den Reflektor (13) anschließenden Gehäuse (11),
dadurch gekennzeichnet,
dass zumindest zum Teil in das Gehäuse (11) eingreifend ein elektronische Komponenten, insbesondere ein Vorschaltgerät (35) aufnehmendes Behältnis (47) und wenigstens eine das Behältnis (47) gegen störende Wärmeeinwirkung abschirmende Luftleitwandung (23) derart vorgesehen sind, dass zwischen dem Gehäuse (11) und der Luftleitwandung (23) ein sich in Richtung einer Luftaustrittsöffnung (29) verjüngender Strömungskanal (25) gebildet ist, der über zumindest eine im Bodenteil (17) ausgebildete Lufteintrittsöffnung (27) in Strömungsverbindung mit dem Aufnahmeraum (15) steht.Luminaire, in particular suspended luminaire, with a reflector (13) forming a receiving space (15) for a luminous means, a bottom part (17) and a housing (11) adjoining the reflector (13) on the bottom side,
characterized,
that at least in part in the housing (11) engaging an electronic components, in particular a ballast (35) receiving container (47) and at least one the container (47) against disturbing heat shielding Luftleitwandung (23) are provided such that between the housing (11) and the Luftleitwandung (23) in the direction of an air outlet opening (29) tapered flow channel (25) is formed over at least one in the bottom part (17) formed in the air inlet opening (27) in flow communication with the receiving space (15). Leuchte nach Anspruch 1,
dadurch gekennzeichnet,
dass in dem Gehäuse (11) zwei derartige, sich diametral gegenüberliegende Luftleitwandungen (23) vorgesehen sind, und dass das Behältnis (47) in dem Freiraum (33) zwischen und mit Abstand zu den beiden divergierenden Luftleitwandungen (23) gehaltert ist.Luminaire according to claim 1,
characterized,
in that two such, diametrically opposite air guide walls (23) are provided in the housing (11), and that the container (47) is held in the free space (33) between and at a distance from the two diverging air guide walls (23). Leuchte nach Anspruch 2,
dadurch gekennzeichnet,
dass die Luftleitwandungen (23) von den beiden Schenkelflächen eines in einem Axialschnitt zumindest im Wesentlichen U- oder V-förmigen Luftleitteils (21), insbesondere eines Winkelblechs, gebildet werden, wobei die seitlichen Begrenzungskanten dieser Schenkelflächen eng benachbart der Gehäuseinnenwand enden oder an dieser zumindest bereichsweise anliegen.Luminaire according to claim 2,
characterized,
that the Luftleitwandungen (23) of the two leg surfaces one in an axial section at least substantially U- or V-shaped Luftleitteils (21), in particular an angle plate, are formed, wherein the lateral boundary edges of these leg surfaces close adjacent to the housing inner wall or abut this at least partially. Leuchte nach Anspruch 3,
dadurch gekennzeichnet,
dass das Behältnis (47) über wenigstens ein Tragelement (49) an einer die beiden Schenkelflächen (23) verbindenden Basiswand (51) fixiert ist, wobei bevorzugt das Tragelement (49) von einem gleichzeitig zur Leitungsführung dienenden Rohrstutzen gebildet ist.Luminaire according to claim 3,
characterized,
in that the container (47) is fixed to at least one support element (49) on a base wall (51) connecting the two limb surfaces (23), wherein the support element (49) is preferably formed by a pipe socket serving simultaneously for guiding the pipe. Leuchte nach einem der Ansprüche 3 oder 4,
dadurch gekennzeichnet,
dass mit dem Luftleitteil (21) wenigstens ein am Gehäuse (11) befestigtes Trägerteil (55) verbunden ist.Luminaire according to one of claims 3 or 4,
characterized,
in that at least one carrier part (55) fastened to the housing (11) is connected to the air-conducting part (21). Leuchte nach Anspruch 5,
dadurch gekennzeichnet,
dass das Trägerteil (55) zur Halterung einer das Bodenteil (17) durchsetzenden Leuchtmittelfassung (19) ausgebildet ist.Luminaire according to claim 5,
characterized,
that the carrier part (55) for holding a the bottom part (17) passing through the luminous means holder (19) is formed. Leuchte nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet,
dass zur Ausbildung des sich verjüngenden Strömungskanals (25) die insbesondere ebene Luftleitwandung (23) unter einem spitzen Winkel zur Gehäuseachse (31) zum insbesondere zylinderförmigen Gehäuse (11) hin geneigt ist.Luminaire according to one of the preceding claims,
characterized,
in that, in order to form the tapering flow channel (25), the in particular planar air guide wall (23) is inclined at an acute angle to the housing axis (31) to the in particular cylindrical housing (11). Leuchte nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet,
dass die Querschnittsreduzierung des Strömungskanals (25) in Strömungsrichtung wenigstens 50% beträgt.Luminaire according to one of the preceding claims,
characterized,
that the cross-sectional reduction of the flow channel (25) in the flow direction is at least 50%. Leuchte nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet,
dass zwischen jedem Strömungskanal (25) und dem die Elektronikkomponenten aufnehmenden Behältnis (47) zumindest ein Kaltluftkanal (41) vorgesehen ist, dessen wenigstens eine Eintrittsöffnung (43) in der Gehäusewandung ausgebildet und dessen Austrittsöffnung (45) im Ausströmbereich der eine Saugwirkung im Kaltluftkanal (41) bewirkenden erhitzten Luft des zugeordneten Strömungskanals (25) gelegen ist.Luminaire according to one of the preceding claims,
characterized,
in that at least one cold air duct (41) is provided between each flow channel (25) and the container (47) accommodating the electronic components, whose at least one inlet opening (43) is formed in the housing wall and whose outlet opening (45) in the outflow region is a suction effect in the cold air duct ( 41) causing heated air of the associated flow channel (25) is located. Leuchte nach Anspruch 9,
dadurch gekennzeichnet,
dass jeder Kaltluftkanal (41) von der dem Strömungskanal (25) zugeordneten Luftleitwandung (23) und einer dazu beabstandeten und zumindest im Wesentlichen dazu parallelen weiteren Luftleitwandung (39) gebildet ist.Luminaire according to claim 9,
characterized,
that each cold air duct (41) is formed by the air duct wall (23) associated with the flow duct (25) and a further air duct wall (39) spaced therefrom and at least essentially parallel thereto. Leuchte nach Anspruch 10, dadurch gekennzeichnet,
dass die Luftaustrittsöffnung (29) des Strömungskanals (25) von dem Ende der zugeordneten Luftleitwandung (23) und der dieser gegenüberliegenden Gehäusewandung und die Kaltluftaustrittsöffnung (45) von den Enden der Luftleitwandungen (23, 39) von Strömungskanal (25) und Kaltluftkanal (41) begrenzt ist.Luminaire according to claim 10, characterized
in that the air outlet opening (29) of the flow channel (25) extends from the end of the associated air guide wall (23) and the housing wall opposite thereto and the cold air outlet opening (45) from the ends of the air guide walls (23, 39) of the flow channel (25) and cold air channel (41 ) is limited. Leuchte nach Anspruch 11, dadurch gekennzeichnet,
dass der gegenseitige vertikale Abstand der Enden der Luftleitwandungen (23, 39) von Strömungskanal (25) und Kaltluftkanal (41) größer ist als der Normalenabstand zwischen den Luftleitwandungen (23, 39) der Kanäle (25, 41).Luminaire according to claim 11, characterized
that the mutual vertical distance between the ends of the Luftleitwandungen (23, 39) of the flow channel (25) and the cold air duct (41) is greater than the normal distance between the Luftleitwandungen (23, 39) of the channels (25, 41). Leuchte nach einem der Ansprüche 9 bis 12,
dadurch gekennzeichnet,
dass die Kaltlufteintrittsöffnung (43) und die Lufteintrittsöffnung (27) des Strömungskanals (25) in Umfangsrichtung des Gehäuses (11) gegeneinander versetzt sind.Luminaire according to one of claims 9 to 12,
characterized,
that the cold air inlet opening (43) and the air inlet opening (27) of the flow channel (25) are offset in the circumferential direction of the housing (11) against each other. Leuchte nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet,
dass das Bodenteil (17) als ein von dem Reflektor (13) separates Teil und als Reflektorhalter ausgebildet ist.Luminaire according to one of the preceding claims,
characterized,
that the bottom part (17) is a separate part and is designed as a reflector holder as from the reflector (13). Leuchte nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet,
dass das Behältnis (47) berührungsfrei in Ausnehmungen des Gehäuses (11) eingreift und sich über das Gehäuse (11) hinaus erstreckt.Luminaire according to one of the preceding claims,
characterized,
in that the container (47) engages without contact in recesses of the housing (11) and extends beyond the housing (11).
EP09000529A 2008-01-29 2009-01-15 Lamp Not-in-force EP2085691B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008006535A DE102008006535A1 (en) 2008-01-29 2008-01-29 lamp

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Publication number Priority date Publication date Assignee Title
DE102012222184A1 (en) 2012-12-04 2014-06-05 Zumtobel Lighting Gmbh Luminaire with air ducts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004018934A1 (en) 2002-08-22 2004-03-04 Ian Thomas Craig A down light protector arrangement
US20060232984A1 (en) 2005-03-08 2006-10-19 Kory Schuknecht Compact fluorescent lamp fixture ventilation method and apparatus

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Publication number Priority date Publication date Assignee Title
DE8710698U1 (en) * 1987-08-05 1987-09-17 Korsch, Alfred, 4154 Toenisvorst, De
DE29505278U1 (en) * 1995-03-30 1995-05-24 Rhoenmetall Gmbh Device for illuminating goods displays for food and for supplying air
DE20202558U1 (en) * 2002-02-19 2003-07-03 Zumtobel Staff Gmbh & Co Kg Konvektionsreflektor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004018934A1 (en) 2002-08-22 2004-03-04 Ian Thomas Craig A down light protector arrangement
US20060232984A1 (en) 2005-03-08 2006-10-19 Kory Schuknecht Compact fluorescent lamp fixture ventilation method and apparatus

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