EP3853516A1 - Lampe destinée à être montée dans un plafond - Google Patents

Lampe destinée à être montée dans un plafond

Info

Publication number
EP3853516A1
EP3853516A1 EP19765684.6A EP19765684A EP3853516A1 EP 3853516 A1 EP3853516 A1 EP 3853516A1 EP 19765684 A EP19765684 A EP 19765684A EP 3853516 A1 EP3853516 A1 EP 3853516A1
Authority
EP
European Patent Office
Prior art keywords
air
duct
inlet
ceiling
opening
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.)
Pending
Application number
EP19765684.6A
Other languages
German (de)
English (en)
Inventor
Dominik Allgaier
Angelo Favarolo
Carsten Schmidt
Lennart Sulzbach
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 Austria
Zumtobel Lighting GmbH Germany
Original Assignee
Zumtobel Lighting GmbH Austria
Zumtobel Lighting GmbH Germany
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zumtobel Lighting GmbH Austria, Zumtobel Lighting GmbH Germany filed Critical Zumtobel Lighting GmbH Austria
Publication of EP3853516A1 publication Critical patent/EP3853516A1/fr
Pending legal-status Critical Current

Links

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
    • 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
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a lamp for installation in a ceiling, in particular for installation in a suspended ceiling, a lighting system having such a lamp and a further lighting system.
  • Lights of the type mentioned are known in principle from the prior art. These are usually installed in ceilings, especially in suspended ceilings, in order to emit light to the underside of the ceiling or to illuminate the room below the lamp (an office space or other rooms).
  • the lamp an office space or other rooms.
  • air which comes from the space below the luminaire, flows through the luminaire or past the luminaire in order to absorb the heat that the luminaire emits during operation. Finally, the air flows out of the luminaire into the false ceiling area or room above the ceiling. The air heated by the lamp therefore collects in this room, since this room is essentially closed off from the room below the lamp.
  • the invention is therefore based on the object of overcoming the above-mentioned disadvantages from the prior art. It is a particular object of the invention to provide a luminaire of the type mentioned at the outset which is better cooled.
  • a luminaire according to the invention for installation in a ceiling in particular for installation in a suspended ceiling, has: a housing with (at least) one inlet channel for cooling a lamp accommodated in the housing by means of free convection in the direction of a in the inlet channel
  • the inlet duct has a first air inlet opening for inlet of the flowing air into the inlet duct and a first air outlet opening for discharging the air flowing in the inlet duct from the inlet duct.
  • the lamp also has at least one exhaust air duct.
  • the exhaust air duct has a second air inlet opening for inlet of the air flowing from the first air outlet opening into the exhaust air duct and a second air outlet opening for discharging the air flowing in the exhaust air duct from the exhaust air duct.
  • the second air outlet opening is relative to the first air inlet opening for inlet of the flowing air into the inlet duct and a first air outlet opening for discharging the air flowing in the inlet duct from the inlet duct.
  • the second air outlet opening is relative to the first
  • Air inlet opening offset (arranged) in the direction of the main flow direction.
  • the housing is so designed that the cooling of one inside
  • Air inlet opening - that is, because the first air inlet opening is not flush with the second air outlet opening - becomes an between the second air outlet opening and the first air inlet opening
  • the pressure difference then causes an air circulation leading through the inlet duct and the exhaust air duct, as a result of which cold fresh air from the surroundings can flow freely into the inlet duct.
  • the air therefore circulates because the air at the first air inlet opening has a lower potential energy than the second air outlet opening and therefore has a higher kinetic energy.
  • This air circulation allows the air heated by the operation of the illuminant to be removed, so in particular no heated air can build up on the side of the first air outlet opening.
  • the cooling of the luminaire is improved overall, in particular also because heated air cannot collect at the second air outlet opening due to the offset and the resulting gradation.
  • the exhaust air duct has a preferably plate-shaped element provided on the side of the housing, the element delimiting part of the exhaust air duct and preferably part of the second air outlet opening. As a result, the exhaust air duct can easily be formed by the element, so that the assembly effort of the lamp is reduced.
  • plate-shaped element is particularly advantageous since such an element is easy to manufacture. If the element also delimits a part of the second air outlet opening, additional steps for providing the respective air outlet opening can be omitted.
  • a wall area of the housing advantageously delimits a part of the exhaust air duct.
  • the exhaust air duct is thus partially formed by the housing, so that an overall compact lamp is provided. It is further preferred if the wall area also delimits part of the second air outlet opening.
  • the respective air outlet opening can thus be provided in a simple manner. In addition, the respective air outlet opening is thus brought even closer to the housing, so that the lamp can be made compact overall.
  • the exhaust air duct preferably the element, can have a through opening which forms the second air inlet opening.
  • Through opening can be easily provided, the second air inlet opening can be easily provided. This means that in particular the manufacturing outlay for the second air inlet opening is reduced.
  • the second air inlet opening or the through opening is elongated and / or is designed as a slot.
  • Such an air inlet opening can easily be provided. Due to the preferably elongated design of the slot or the second air inlet opening, more air can also flow through the second air inlet opening into the exhaust air duct, so that the cooling of the lamp or the removal of the air heated by operation of the lamp is further improved.
  • the luminaire preferably has two exhaust air ducts as described above. As a result, even more air heated by operating the lamp can be removed, so that the cooling of the lamp is further improved.
  • the two outlet channels are preferably provided on the side of the housing. In other words, the housing is preferably arranged between the outlet channels. The heated air can thus be removed efficiently.
  • the housing can furthermore have at least one light emission opening for emitting the light emitted by a lamp accommodated in the housing, the first air inlet opening being provided to the side of the light emission opening.
  • the first air inlet opening can partially or closed the light emission opening, preferably
  • Air inlet opening and the light emission opening are substantially congruent.
  • the housing and consequently the lamp can be made compact.
  • the inlet channel can thus directly adjoin the components defining the light emission opening, for example the illuminant, a component receiving the illuminant and / or optical elements such as a reflector or a lens, so that heat emitted by the illuminant effectively through the in the inlet channel flowing air can be transported away from the lamp. The cooling of the illuminant is thus further improved.
  • the housing can have at least two, preferably three or more, particularly preferably five or more than five inlet channels, each with a first
  • Air inlet openings each one of the at least one light emission openings is provided.
  • the first air inlet openings can each run partially or closed, preferably rotationally symmetrically, in one of the at least one light emission opening.
  • the first air outlet opening can be provided in the top view of the housing, centered with respect to the housing.
  • Air flowing out of the air outlet opening flows evenly to the side of the housing out of the first air outlet opening, so that the air circulation and thus the cooling of the lamp is improved.
  • the first air outlet opening can be located laterally in the
  • the first air outlet opening can thus open directly into the exhaust air duct, which benefits efficient cooling of the luminaire.
  • the invention further relates to a lighting system comprising a ceiling, for example a suspended ceiling, and a lamp as described above.
  • the lamp is provided in the ceiling in such a way that in the
  • Inlet duct air flowing from a front of the ceiling through the first air inlet opening into the inlet duct due to free convection is admitted and is discharged (discharged) from the inlet duct to a rear side of the ceiling via the first air outlet opening.
  • the lamp is also provided in the ceiling such that the air flowing out of the first air outlet opening and thus located on the back of the ceiling is admitted into the exhaust air duct via the second air inlet opening and is discharged from the exhaust air duct to the front of the ceiling via the second air outlet opening.
  • the second air outlet opening is relative to the first
  • Air inlet opening staggered in a direction from the front to the back of the ceiling; the first air inlet protrudes from the front of the ceiling. This in turn requires the one described above
  • the back of the ceiling is usually an essentially closed space like
  • the intermediate area between a (suspended) ceiling and a ceiling supporting the (suspended) ceiling for example the intermediate area between a (suspended) ceiling and a ceiling supporting the (suspended) ceiling.
  • the front of the ceiling is usually the room to be illuminated by the lamp.
  • no heated air can therefore form on the back of the ceiling or in the essentially closed space on the back of the ceiling build up so that the free convection for cooling the illuminant in the housing is not interrupted and thus efficient cooling of the lamp takes place.
  • the heated air discharged from the second air outlet opening is guided along the surface of the front of the ceiling and thus effectively guided away from the lamp.
  • the invention relates to a lighting system comprising a ceiling and a lamp installed in the ceiling.
  • the luminaire has a housing with an inlet channel for cooling an illuminant accommodated in the housing by means of air flowing in the inlet channel due to free convection in the direction of a main flow direction.
  • the inlet duct has a first air inlet opening for inlet of the flowing air from a front of the ceiling into the inlet duct and a first one
  • Air outlet opening for discharging the air flowing in the inlet duct from the inlet duct to a rear of the ceiling.
  • the lighting system preferably the ceiling, has at least one exhaust air duct.
  • the exhaust air duct has a second air inlet opening for inlet from the first
  • the second air outlet opening is offset (arranged) relative to the first air inlet opening in the direction of the main flow direction.
  • the advantages mentioned above for more efficient cooling of the lamp or the lighting system apply analogously to this lighting system.
  • the luminaire as such can be made more compact.
  • the exhaust air duct is preferably formed integrally with the ceiling. This is particularly advantageous for the simple provision of the exhaust air duct in the ceiling.
  • an installation element is provided for installation in the ceiling, the installation element having the exhaust air duct.
  • the exhaust air duct can thus be replaced, for example.
  • a built-in element can have additional structures, for example the (plate-shaped) element described above have manufacturing and / or fluidic optimization of the light or the lighting system.
  • the exhaust air duct is preferably provided as a through opening, in particular as a slot, in the ceiling. This is particularly advantageous for simple provision of the exhaust air duct and its openings in the ceiling.
  • the ceiling can have two or more of the exhaust air ducts. As a result, even more air heated by operating the lamp can be removed, so that the cooling of the lamp is further improved.
  • Figure 1a is a schematic sectional view of a first embodiment of the lamp according to the invention or of the invention
  • Luminaire system with schematically indicated air circulation for cooling the luminaire
  • Figure 1b shows the lamp shown in Figure 1a in a plan view from below;
  • Figure 2 shows an embodiment of the first embodiment of the
  • Figure 3 is a schematic sectional view of the lighting system shown in Figures 1 a and 1 b with speed profile of the air for cooling the lamp;
  • Figure 4 shows an embodiment of a second embodiment of the
  • Figure 5 is a schematic sectional view of an embodiment of a
  • Luminaire system with the luminaire according to the second Embodiment with air speed profile for cooling the lamp is a Luminaire system with the luminaire according to the second Embodiment with air speed profile for cooling the lamp.
  • a light 1 or a light system are shown as examples.
  • the luminaire 1 can be used, for example, for installation in a ceiling 2.
  • the ceiling 2 can have an opening 3 into which the luminaire 1 can be provided or inserted.
  • the lamp 1 can be fastened with fasteners, not shown. Suitable fasteners are in particular non-positive and / or positive fasteners such as screw or clip connections.
  • the opening 3 has
  • the ceiling 2 has a front side and a rear side that faces away from the front side.
  • the front of the ceiling 2 is usually directed in the direction of the room to be illuminated by the lamp 1, i. H.
  • the front of the ceiling 2 is a side of the ceiling 2 that is visible from the room to be illuminated.
  • the back of the ceiling 2 is usually not visible from the room to be illuminated.
  • the back of the ceiling 2 can be directed, for example, to a room R which is not visible from the room to be illuminated,
  • in room R also false ceiling area or
  • the ceiling 2 can be, for example, the side wall of a shaft for receiving and operating the lamp 1.
  • the blanket 2 is a blanket which is supported by a further blanket D via appropriate suspension means 4.
  • the ceiling 2 can for example be a suspended ceiling.
  • the further ceiling D can be, for example, a (concrete or steel) ceiling of a house or other property. Blanket 2, another blanket D and support means 4 can thus, for example, that provided on the back of the blanket 2, in
  • the lamp 1 preferably has a shape corresponding to the opening 3, for example an elongated shape.
  • the lamp 1 is not on one elongated shape limited, but can be seen in plan view of the lamp 1, for example flat or the like, in particular round.
  • the lamp 1 also has a housing 5, which is designed to accommodate at least one lamp 6, for example an LED.
  • the housing 5 can in particular be designed to accommodate a plurality of lamps 6.
  • the housing 5 can also be designed, further (electrical and / or
  • the illuminant 6 is provided in the housing 5 such that a
  • Light emission opening 61 of the housing 5, the illuminant 6 can emit light, in particular in the direction of the space below the ceiling 2.
  • the light emission opening 61 optionally has a translucent cover.
  • the light emission opening 61 preferably has a rectangular (for example square), round, oval and / or polygonal shape when viewed in plan view.
  • the housing 5 preferably has a shape corresponding to the opening 3, that is to say preferably an elongated shape.
  • the housing 5 can be box-shaped.
  • the housing 5 can also have a plurality of, in particular two, three or more than three, light emission openings 61.
  • Each of the light emission openings 61 can in turn have an illuminant 6 as described above.
  • the light emission openings 61 are preferably arranged in a row.
  • the housing 5 also has an inlet duct with a first air inlet opening 7 or — as can be seen in particular in FIG. 1 b — a plurality, that is to say at least two, preferably three or four, particularly preferably five or more than five
  • Inlet channels each with a first air inlet opening 7 for cooling the lamp 6 and preferably the further components of the lamp 1 by means of air flowing in the (respective) inlet channel due to free convection in the direction of a main flow direction.
  • the main flow direction corresponds to a direction from the front of the ceiling 2 to the rear of the ceiling 2, that is to say, for example, a vertical direction.
  • the heat-emitting components provided in the housing 5, that is to say in particular the illuminant 6, bring about in the inlet duct by heating the air therein Density differences so that air flows vertically in the intake duct according to the chimney effect. The flowing air becomes that of the
  • the first air inlet opening 7 is provided to the side of the light emission opening 61. If a plurality of inlet channels or air inlet openings 7 are preferably provided, it is preferred if one of the at least one light emission opening 61 is provided at least between two adjacent air inlet openings 7, as seen in a plan view of the housing 5. Furthermore, as can be seen in FIG. 1 b, an air inlet opening 7 can be provided between a wall of the housing 5 and a light emission opening 61 adjacent to the wall of the housing 5. For example, the two outermost light emission openings 61, which are adjacent to a wall of the housing 5, together with the respective wall of the housing 5 form two air inlet openings 7.
  • the wall of the housing 5 preferably forms part of the inlet channel or the inlet channel is partially a housing (partially) designed.
  • the invention is not limited to such an inlet duct. It only has to be ensured that the air flowing through the inlet channel flows in such a way that it absorbs the heat emitted at least by the lamp 6, for example by the air flowing through the inlet channel flowing directly or indirectly around the lamp 6.
  • the first air inlet opening 7 is preferably provided on the front of the housing 5, for example on the side of the room to be illuminated.
  • the inlet duct also has a first air outlet opening 8 for discharging the air flowing in the inlet duct from the inlet duct.
  • the first air outlet opening 8 can be provided laterally in the housing 5.
  • two first air outlet openings 8 can be provided laterally in the housing 5, preferably such that the
  • the first air outlet opening 8 is preferably provided in the housing 5 in such a way that it opens directly into the exhaust air duct 9, as will be described below.
  • the at least one first air outlet opening 8 can be elongated, for example in such a way that the at least one air outlet opening 8 in Direction of the longitudinal extent of the housing 5 extends. It is particularly preferred if the air outlet opening 8 is designed as a slot.
  • At least one first air outlet opening 81 is provided in the center of the housing 5, as seen in a plan view of the housing 5. It is also possible to provide several, in particular four, air outlet openings 81 which are provided transversely, for example perpendicularly to the (longitudinal) extent of the lamp 1.
  • the respective air outlet opening 81 can be designed, for example, as a slot.
  • the air outlet openings 81 can be provided uniformly along the extent of the lamp 1. The corresponding speed profile of the air circulation thus caused can be seen in FIG. When comparing FIG. 3 with FIG. 5, which represents the speed profile of the embodiment according to FIG. 4, it can be seen that the (to the top) from the
  • Housing 5 flowing flow of air for cooling the lamp 6 can be increased.
  • the lamp 1 also has at least one exhaust air duct 9.
  • the exhaust air duct 9 is preferably provided on the side of the housing 5. It is preferred if the lamp 1 has two or only two exhaust air channels 9, which are preferably provided on the side of the housing 5.
  • the housing 5 can be provided between the two exhaust air channels 9.
  • the exhaust air duct 9 can have a preferably plate-shaped element 10 which is provided on the side of the housing and delimits a part of the exhaust air duct.
  • the element 10 is designed as a plate, for example.
  • the element 10 can, however, have any flat and / or elongated design.
  • the element 10 can consist of a thin-walled material such as a sheet metal.
  • the element 10 is preferably designed so that it can be attached to the ceiling 2, preferably over a flat side of the element 10. The attachment can be done with a fastener, for example with a material, non-positive and / or positive
  • the element 10 be connected to the housing 5 via fastening means as described above, for example in such a way that the element 10 is simultaneously fastened to the ceiling 2 by mounting the lamp 1 on the ceiling 2.
  • a wall area of the housing 5 can delimit part of the exhaust air duct 9.
  • the exhaust air duct 9 can thus be formed, for example, in which the element 10 is arranged next to the wall area of the housing 5; in other words, the exhaust air duct 9 can be the gap provided between the element 10 and the housing 5.
  • the exhaust air duct 9 has a second air inlet opening for inlet of the air flowing out of the first air outlet opening 8, 81 into the exhaust air duct 9.
  • the figures, in particular FIGS. 2 and 4, show that the second air inlet opening can be formed, for example, by a through opening 11.
  • the through opening 1 1 is preferably on the part of
  • the through opening 11 is provided in the vicinity of the rear of the ceiling 2.
  • the through opening 11 can be an elongated through opening, in particular extending in the direction of the longitudinal extent of the lamp 1 or the housing 5.
  • the through opening 11 can be an elongated through opening, in particular extending in the direction of the longitudinal extent of the lamp 1 or the housing 5.
  • Through opening 11 may be formed as an (elongated) slot. It is preferred if the through opening 11 is formed in the element 10.
  • the exhaust air duct 9 has a second air outlet opening 12.
  • Exhaust air duct 9 is preferably formed only between the second air inlet opening 11 and the second air outlet opening 12.
  • the second air outlet opening 12 is preferably provided on the side of the front of the ceiling 2. Via the second air outlet opening 12, the flow or
  • the second air outlet opening 12 can, as shown by way of example in the figures, be provided such that the element 10 and / or the wall area of the housing 5 is part of the second
  • Air outlet opening 12 forms. That is, an opening of the gap provided between the housing 5 and the element 10 can form the second air outlet opening 12.
  • the second air outlet opening 12 thus preferably has an elongated shape or a shape corresponding to the lamp 1 or the housing 5.
  • the second air outlet opening 12 is offset relative to the first air inlet opening 7 in the direction of the main flow direction, that is to say, for example, in the vertical direction (upward in the figures). In the exemplary embodiment shown in the figures, this offset is formed in that the first air inlet opening 7 protrudes a little, for example a few millimeters, from the front of the ceiling 2 or from the room R.
  • the first air inlet opening 7 has an offset of 1 mm to 20 mm, more preferably of 2 mm to 10 mm, particularly preferably of 4 mm, or of up to 50%, more preferably of up to 25%, particularly preferably from 5% to 10%, for example 8% of the height of the lamp 1 from the second
  • the (total) height of the lamp 1 is preferably 50 mm. Such an offset can result in an effective cooling flow without the optical
  • the offset forms a gradation from the first air inlet opening 7 to the second air outlet opening 12. Because of the offset, there is thus a between the first air inlet opening 7 and the second air outlet opening 12
  • FIG. 1 shows that the air circulation leads both through the inlet duct, that is to say for example through the housing 5, and through the exhaust air duct 9.
  • the air that accumulates in the space R and is heated by operation of at least the illuminant 6 is thus discharged below the luminaire, in particular into the space to be illuminated, by the air circulation.
  • the discharged and heated air rises again in the room to be illuminated, but does not get back into the room R because of the air circulation, but is guided away from the lamp 1 along the front of the ceiling 2.
  • the lamp 1, in particular the lamp 6, can be cooled efficiently. It was observed in particular that the temperature of the lamp 1 can be reduced by more than 8 ° C.
  • the exhaust air duct can also be provided detached from the luminaire 1, for example in the ceiling 2. What has been said with regard to the exhaust air duct 9 therefore applies analogously to an exhaust air duct provided in the ceiling 2, unless otherwise described below.
  • An exhaust air duct formed in the ceiling 2 can be integrally formed in the ceiling 2, for example.
  • Element 10 described is provided in the ceiling 2 and has the exhaust air duct.
  • the exhaust air duct is preferably designed as a through opening in the ceiling.
  • the exhaust air duct can therefore be provided, for example, simply by providing a through hole in the ceiling 2.
  • the through opening can be elongated and / or designed as a slot.
  • Two or more of the exhaust air ducts as described above are preferably provided in the ceiling 2.
  • the two exhaust air ducts can be provided such that the luminaire 1 is provided between these exhaust air ducts.
  • the two or more exhaust air ducts can also be arranged around the lamp 1, in particular evenly distributed around the lamp 1

Landscapes

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

Abstract

L'invention concerne une lampe (1) destinée à être montée dans un plafond (2), en particulier dans un plafond suspendu, ladite lampe comprenant un boîtier (5) pourvu d'un canal d'entrée destiné à refroidir un moyen d'éclairage (6), logé dans le boîtier, avec de l'air circulant dans le canal d'entrée par convection libre en direction d'un flux principal. Le canal d'entrée comporte - une première ouverture d'entrée d'air (7) destinée à l'entrée de l'air circulant dans le canal d'entrée et - une première ouverture de sortie d'air (8, 81) destinée à évacuer du canal d'entrée l'air circulant dans le canal d'entrée et au moins un canal d'évacuation d'air (9) pourvu – d'une deuxième ouverture d'entrée d'air (11) destinée à l'entrée de l'air, circulant par la première ouverture de sortie d'air (8, 81), dans le canal de sortie d'air (9) et – d'une deuxième ouverture de sortie d'air (12) destinée à évacuer l'air, circulant dans le conduit de sortie d'air (9), du canal de sortie d'air (9). La deuxième ouverture de sortie d'air (12) est décalée par rapport à la première ouverture d'entrée d'air (7) dans la direction d'écoulement principale.
EP19765684.6A 2018-09-21 2019-09-05 Lampe destinée à être montée dans un plafond Pending EP3853516A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018105432.5U DE202018105432U1 (de) 2018-09-21 2018-09-21 Leuchte zum Einbau in eine Decke
PCT/EP2019/073649 WO2020057986A1 (fr) 2018-09-21 2019-09-05 Lampe destinée à être montée dans un plafond

Publications (1)

Publication Number Publication Date
EP3853516A1 true EP3853516A1 (fr) 2021-07-28

Family

ID=67902508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19765684.6A Pending EP3853516A1 (fr) 2018-09-21 2019-09-05 Lampe destinée à être montée dans un plafond

Country Status (3)

Country Link
EP (1) EP3853516A1 (fr)
DE (1) DE202018105432U1 (fr)
WO (1) WO2020057986A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000010951A1 (it) * 2020-05-14 2021-11-14 Led Luks D O O Apparato di illuminazione e relativo metodo di montaggio

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Publication number Priority date Publication date Assignee Title
US4930054A (en) * 1988-12-09 1990-05-29 Nutone, Inc. Dual cone recessed lighting fixture
DE4413290C2 (de) * 1994-04-16 1999-10-28 Zumtobel Licht Gmbh Dornbirn Halogenleuchte
US7677770B2 (en) * 2007-01-09 2010-03-16 Lighting Science Group Corporation Thermally-managed LED-based recessed down lights
US8304970B2 (en) * 2008-06-02 2012-11-06 Sunovia Energy Technologies, Inc. Light unit with induced convection heat sink
DE202009005314U1 (de) * 2009-04-07 2009-06-04 Pohlmann & Partner Gmbh Beleuchtungselement
US20110110095A1 (en) * 2009-10-09 2011-05-12 Intematix Corporation Solid-state lamps with passive cooling
JP2012230761A (ja) * 2011-04-22 2012-11-22 Mifuji Kk Ｌｅｄダウンライト
DE102011081369A1 (de) * 2011-08-23 2013-02-28 Trilux Gmbh & Co. Kg Leuchte, insbesondere LED-Leuchte mit passiver Kühlung

Also Published As

Publication number Publication date
DE202018105432U1 (de) 2020-01-02
WO2020057986A1 (fr) 2020-03-26

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