EP2232159B1 - Recessed ceiling light with integrated fan - Google Patents

Recessed ceiling light with integrated fan Download PDF

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Publication number
EP2232159B1
EP2232159B1 EP09700672A EP09700672A EP2232159B1 EP 2232159 B1 EP2232159 B1 EP 2232159B1 EP 09700672 A EP09700672 A EP 09700672A EP 09700672 A EP09700672 A EP 09700672A EP 2232159 B1 EP2232159 B1 EP 2232159B1
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EP
European Patent Office
Prior art keywords
air
arrangement
lighting
luminaire
conditioning
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.)
Not-in-force
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EP09700672A
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German (de)
French (fr)
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EP2232159A1 (en
Inventor
Manfred Grimm
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Individual
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Individual
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Publication of EP2232159A1 publication Critical patent/EP2232159A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/02—Details or features not otherwise provided for combined with lighting fixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling

Definitions

  • the present invention relates to an arrangement with lighting function and climatic function comprising at least one light source, the at least one lamp associated means for light guidance and at least one accommodated in the arrangement fan.
  • a known from the prior art arrangement with luminaire function and climate function of the aforementioned type is in the DE 10 2005 038 199 A1 as well as in the GB 546005 described. It is a relatively bulky device for air conditioning a room in the form of a ceiling panel, which can be attached to the ceiling of a room.
  • a radiator is integrated, which is mounted on the ceiling.
  • the device has a comparatively large amount of reclaiming frame which is closed down from a cover plate. From the cover plate can be suspended a pendant light.
  • various lighting units can be arranged within the frame of the entire device, for example, an elongated lighting unit, which is housed in a side panel next to the centrally arranged in the device radiator.
  • This elongated lamp unit can also be designed as a grid lamp.
  • the radiator which is housed in a middle field of the housing frame, already has about the dimensions of a flat compact built modern light.
  • additional vertical partitions are provided in which fans are arranged for the Passage of air through the radiator, are provided for the supply of fresh air into the room or the extraction of exhaust air from the room.
  • four transverse walls extending in the transverse direction and two further intermediate walls are provided, which extend in the longitudinal direction.
  • the object of the present invention is to provide an arrangement with lighting function and simultaneous air conditioning function of the type mentioned, which is of much more compact design and therefore more versatile and more variable uses allows.
  • the arrangement is designed as a ceiling luminaire and within a single in one Suspended ceiling luminaire housing both at least one lamp unit comprising lighting means and means for light guidance and at least one air conditioning unit comprising at least one fan are housed.
  • the solution according to the invention makes it possible to accommodate the desired two functions, namely the lighting function and the air conditioning function in only a single comparatively flat housing with approximately the dimensions of a modern compact recessed ceiling light for a workplace, which can then be mounted in a suspended ceiling so that they the dimensions of a standard grid complies.
  • a unit of a size that corresponds to only a fraction of that shown in the above-mentioned document arrangement. It results in a reduction in size by a multiple with the further advantage that can be used on the usual grid dimensions of the fields of suspended ceilings, as they are otherwise used for the installation of conventional recessed ceiling lights without climate function.
  • the installation of a ceiling luminaire with climate function according to the invention is much easier to accomplish, as is the case with the known arrangement described above. It is sufficient to remove the corresponding ceiling panel to install the recessed light according to the invention in the ceiling of the suspended ceiling and to install the connections of the necessary lines for the various functions.
  • the known arrangement was very bulky and had to be laboriously installed in several steps. Due to the design, it was also not possible to make the installation in a suspended ceiling, so that consequently the installation had to be done under the existing ceiling, resulting in a significant loss of room height result.
  • the known arrangement was due to their size and volume also very expensive to transport. All these problems are eliminated in the solution according to the invention. It is an industrial mass production possible.
  • the inventive product serving as a light and for air conditioning of a room can be mounted quickly and easily. It will Little packaging is needed and transport from the manufacturer to the customer is easy and inexpensive. The customer acquires a unit comparable to that of a conventional lamp of this type, but equipped with the additional climate function. An elaborate building-side air conditioning can be omitted.
  • the solution according to the invention has control engineering advantages, since the air-conditioning unit of each recessed ceiling luminaire allows an individually controlled supply of fresh air via the fan integrated in it.
  • the removal of the exhaust air or the extraction of the exhaust air can be done centrally according to a preferred variant of the invention, said exhaust air can pass through a heat exchanger, in return, the fresh air can be passed, so that there takes place a heat exchange in which the fresh air preferably preheated or pre-cooled before it flows above the suspended ceiling to the individual fans of the recessed ceiling lights and is then fed through this space.
  • a filter device may be provided which filters out dust particles etc. from the fresh air sucked in so that the fresh air can be sucked in from outside the building without hesitation.
  • the luminaire according to the invention can be installed in a room in the ceiling where, according to the photometric calculations for optimum illumination of the workplaces placed a luminaire should be. Due to the compact design, it is easily possible to hang a corresponding number of lights in a room. At the same time, there is the advantage that not only the illuminance based on the workplace optimizes available where it is needed, but also an air conditioning is provided related to the respective workplace, which allows a significant increase in efficiency over conventional room air conditioning.
  • the recessed ceiling light has an approximately rectangular housing which is open at least over part of its surface downwards and is subdivided in longitudinal or transverse succession or juxtaposed rectangular fields, of which at least one is a light exit panel of a lamp unit and at least one is an air outlet or air inlet panel of an air conditioning unit.
  • the "open" housing can of course be covered in the region of the light exit fields by a light-technically effective cover such as a prismatic glass, a translucent cover or the like.
  • each light exit fields are each a lamp unit and one of which is an air outlet or air inlet panel of an air conditioning unit is, preferably an air outlet panel with this associated fan, which emits fresh air into the room.
  • a solution variant in which at least two in the longitudinal direction are provided on both sides to near the end of the rectangular housing extending rectangular rectangular light emission fields, between which in a longitudinal direction or transverse direction approximately central region of the housing, a rectangular air outlet or air inlet field an air conditioning unit is arranged.
  • This variant allows a technically advantageous design of the lighting function, since you can hang the light over a workplace, for example, so arranged light emission fields that the light falls under normal conditions at low angles of incidence on the work area.
  • the ceiling recessed luminaire with climatic function according to the invention for example, in the outline be approximately square, preferably with dimensions that correspond to a ceiling built-in field.
  • a rectangular recessed ceiling luminaire with two outer Lichtaustrittsfeldern and a central climatic area can be run as elongated fields with fluorescent tubes and a light-guiding luminaire grid, for example, the two light exit fields, so that the arrangement performs the function of two smaller spaced-apart grid lights.
  • a larger fan or a plurality of smaller fans can be arranged in the central area with climatic function.
  • a heat exchanger can be accommodated in the housing of the recessed ceiling light, so that the fresh air is preheated or pre-cooled there.
  • baffles are arranged for a possible preferred solution, so that the sucked air can flow over a larger area through the heat exchanger before it enters the suction of the fan, the fresh air to the Room feeds.
  • the present invention further relates to a device for lighting and air conditioning of a room comprising at least one designed as a ceiling luminaire arrangement with lighting function and climate function of the aforementioned type, the invention further comprises at least one associated with one or more recessed ceiling luminaires, these separately arranged heat exchanger, of the the recessed ceiling lights to be supplied fresh air and / or the exhaust air from the room (in countercurrent) is flowed through.
  • This heat exchanger is preferably arranged in the region of an outer wall of the building or in the vicinity thereof. Furthermore, this is preferred in arranged a plane above the suspended ceiling or the fresh air supply of this heat exchanger takes place in the space above the suspended ceiling.
  • Said heat exchanger can be, for example, a plate heat exchanger, which operates without coolant, so that only a temperature exchange between the supplied fresh air and discharged from the room exhaust air takes place. If, as preferred, a filter device for the supply air in the area of this heat exchanger is provided, then quasi clean air is introduced into the space above the suspended ceiling, which either pre-cooled (summer) or preheated depending on the season (in winter ) becomes. This preconditioned clean air is then sucked in by the respective fan of the recessed ceiling light (s). The heat exchange process is thus spatially separated from the or the recessed ceiling lights in this variant of the invention.
  • fans can be used, whose task is to supply only the corresponding (this ceiling downlight assigned) portion of the room with already preconditioned and purified fresh air.
  • This solution has the advantage that the fresh air with comparatively low flow rate can be supplied to the room, which can still be set individually for the individual ceiling luminaire.
  • Conventional air conditioning systems usually work with a central fan, which must supply the entire room or a whole building with fresh air and therefore operates with a correspondingly large power, which also comparatively high flow velocities are generated, so that when blowing the fresh air into the room strong air movements arise, which are perceived by the people who are in the room, as an unpleasant drafts.
  • FIG. 1 The perspective view shows an intended for ceiling installation lamp according to the invention, which is generally designated 10.
  • This lamp has a housing 11 which is rectangular in outline or approximately square.
  • This housing 11, which is largely concealed after installation of a suspended ceiling in which it is installed, is provided on the underside with a respect to the housing outwardly slightly projecting frame 12, which rests on the top of the suspended ceiling after installation and the Ceiling opening concealed, as is also the case with a conventional recessed ceiling light of this type is usually the case.
  • the ceiling recessed luminaire 10 has as in FIG. 1 recognizes two lamp units 13 and 14, between which an air conditioning unit 15 is arranged. To the arrangement of the various fields of the bottom of the lamp that make up these functional units, in their relative orientation to define each other, is resorted to the four boundary edges of the frame 12 back.
  • the frame 12 on the underside of the housing is rectangular in outline and is bounded on the right longitudinal side by the boundary edge 17, on the front transverse side by the boundary edge 20, on the rear transverse side by the boundary edge 18 and on the left longitudinal side by the boundary edge 19th
  • the luminaire is square or approximately square in outline, it is referred to herein as longitudinal and transverse sides to facilitate the description, focusing here on the orientation of the luminaire units 13 and 14.
  • lamp units 13, 14 are each rectangular elongated fields in which a light emission takes place downwards. These fields are covered, for example, by a prism glass or a translucent cover to achieve light scattering.
  • the right in the drawing lamp unit 13 extends in the longitudinal direction parallel to the boundary edge 17 and adjacent to its outer side close to this boundary edge 17. Furthermore, the lamp unit 13 extends substantially over the entire length of the lamp between the two boundary edges 20 front and 18 rear. In the width, the rectangular lamp unit 13 extends approximately over one third of the lamp and adjoins the left of the air conditioning unit 15, which extends centrally. This arranged in the central region of the lamp air conditioning unit 15 is slightly wider than a third of the lamp seen in the transverse direction (between the boundary edges 19 and 17). Further, the air conditioning unit 15 extends in the longitudinal direction approximately over the entire length of the lamp between the boundary edges 20 and 18th
  • the central panel of the air conditioning unit 15 is flanked on both sides by the two lamp units 13 and 14. Approximately in the middle of the air conditioning unit 15 is in this embodiment, a fan 16. This fan gives fresh air into the room under the ceiling light.
  • the second rectangular lamp unit 14 which is designed in principle in their dimensions and in their execution the same as the right lamp unit 13.
  • On the right side of the lamp unit 14 is almost adjacent to the left boundary edge 19.
  • the lamp unit 14th extends largely over the length of the lamp in the longitudinal direction between the two boundary edges 20th and 18.
  • FIG. 2 shows a vertical cross section through the luminaire in a plane extending between the two boundary edges 20 and 18.
  • the fan 16 which sucks the fresh air from above, this being guided by baffles 25, above which there is a heat exchanger 26 in the housing of the recessed ceiling light.
  • This heat exchanger can be, for example, a plate heat exchanger, wherein coolant, for example water flows through pipes laid in loops and is thus pre-cooled.
  • the two lighting units are each covered on the underside by the prism covers or translucent covers 14 a and 13 a.
  • This upper space is bounded on the upper side by the housing cover 27 of the entire recessed ceiling luminaire.
  • the overall housing is thus slightly higher than the respective individual housing of the two lamp units 13 and 14.
  • FIG. 3 shows a schematically simplified longitudinal section through a space to be illuminated in, for example, an office.
  • the suspended ceiling 31 At a distance below the fixed ceiling 30 is the suspended ceiling 31, in which the recessed ceiling lights 10 are installed according to the present invention.
  • the recessed ceiling lights 10 are installed according to the present invention.
  • a corresponding number of recessed ceiling lights is used. These are generally arranged at intervals in each case in the transverse direction and in the longitudinal direction.
  • three such recessed ceiling lights 10 are recognizable.
  • a central heat exchanger 32 is arranged above the suspended ceiling 31 adjacent to the outer wall 33 in the edge area of the room.
  • FIG. 4 It is, for example, a countercurrent plate heat exchanger as in FIG. 4 is shown.
  • the exhaust air entering at 40 which is sucked in by a first axial fan 45 and leaves the heat exchanger via the opening 41 again in cross-flow with the supplied through the opening 42 supply air, which is sucked by a second axial fan 46 and the Exits heat exchanger through the opening 43 again.
  • the exhaust air or supply air flows through plates, which are arranged for example horizontally and in parallel.
  • an upstream filter device 44 is provided for the inlet air entering from the outside at 42, by means of which dust particles etc. are removed from the supplied supply air. About the opening 43 then passes the filtered supply air into the false ceiling.
  • a temperature compensation between supply air and exhaust air takes place. If, for example, the fresh air supplied from outside the building is warmer in summer than the exhaust air emitted from the room, the supply air can already be pre-cooled via the latter.
  • FIG. 5 a perspective view is shown, wherein the recessed ceiling light 10 shown there according to FIG. 1 is similar in the basic structure. Both lamps differ on the one hand in each case in the lighting technology of the respective lighting units 53, 54. In addition, the two lighting units are designed here somewhat narrower, whereby the central area is designed slightly wider with the air conditioning unit 55. In the two lamp units 53, 54, a grid with reflectors and transverse fins 56 is provided here instead of a prism cover, so that each of the two lamp units 53, 54 fulfills the photometric function of a narrow, elongate louver lamp. Further details of in FIG. 5 illustrated recessed luminaire 10 result from the sectional view according to FIG. 6 , which shows a vertical section through one of the lamp units, which is in a plane perpendicular to the section in FIG. 2 runs.
  • longitudinal reflectors 57 are provided as well as end reflectors 58 for the light steering, which cooperate with the above-mentioned transverse blades 56.
  • From the suction side of the fan 16 extend upward in each case at an oblique angle baffles 25 on both sides of the fan and extend on the upper side to a heat exchanger 26 zoom. This was already in the description of FIG. 2 mentioned, as well as the baffles 25.
  • FIG. 6 can be seen left above and right above also laid in loops tubes 59, through which the coolant is passed. The air drawn in by the fan 16 can thus be cooled by the heat exchanger 26 before it is blown into the room.
  • the two parallel spaced-apart lighting units 53, 54 extend substantially over the entire length of the recessed ceiling light in a spatial direction, which in turn should be regarded herein as a longitudinal direction for simplicity.
  • the two lighting units 53, 54 are quite close to the respective boundary edges 19, 17 of the window frame 12.
  • the luminaire unit Seen over the width of the entire ceiling recessed luminaire, the luminaire unit extends over, for example, about one fifth of the total width of the luminaire. Since the arrangement of the two lamp units is symmetrical with respect to a vertical central plane of symmetry passing through the fan 16, the width of the central area of the air conditioning unit 55 remains about three-fifths of the total width.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

Die vorliegende Erfindung betrifft eine Anordnung mit Beleuchtungsfunktion und Klimafunktion umfassend mindestens ein Leuchtmittel, dem mindestens einen Leuchtmittel zugeordnete Mittel zur Lichtlenkung und mindestens einen in der Anordnung untergebrachten Ventilator.The present invention relates to an arrangement with lighting function and climatic function comprising at least one light source, the at least one lamp associated means for light guidance and at least one accommodated in the arrangement fan.

Eine aus dem Stand der Technik bekannte Anordnung mit Leuchtenfunktion und Klimafunktion der vorgenannten Gattung ist in der DE 10 2005 038 199 A1 sowie in der G B 546005 beschrieben. Es handelt sich um eine vergleichsweise großvolumige Vorrichtung zur Klimatisierung eines Raumes in Form eines Deckenpanels, welches an der Decke eines Raumes angebracht werden kann. In die Vorrichtung ist ein Heizkörper integriert, der an der Decke montiert wird. Die Vorrichtung hat einen vergleichsweise viel Platz in Anspruch nehmenden umlaufenden Rahmen, der nach unten von einer Abdeckplatte abgeschlossen ist. Von der Abdeckplatte kann eine Pendelleuchte abgehängt werden. Es wird in dem Dokument auch erwähnt, dass diverse Leuchteneinheiten innerhalb des Rahmens der gesamten Vorrichtung angeordnet werden können, zum Beispiel auch eine langgestreckte Leuchteneinheit, die in einem Seitenfeld neben dem mittig in der Vorrichtung angeordneten Heizkörper untergebracht wird. Diese langgestreckte Leuchteneinheit kann auch als Rasterleuchte ausgebildet sein. In der Druckschrift finden sich jedoch keine weiteren Ausführungen bezüglich der konkreten Ausbildung einer solchen Rasterleuchte. Nachteilig an der bekannten Anordnung ist der durch die Größe und Bauart bedingte enorme Platzbedarf. Allein der Heizkörper, der in einem mittleren Feld des Gehäuserahmens untergebracht ist, hat bereits etwa die Abmessungen einer flachen kompakt gebauten modernen Leuchte. Für die Unterbringung von Wärmetauschern sowie der Leuchteneinheit sind weitere Felder vorgesehen. Zusätzliche vertikale Trennwände sind vorhanden, in denen Ventilatoren angeordnet werden, die für das Hindurchströmen von Luft durch den Heizkörper, für die Zufuhr von Frischluft in den Raum bzw. das Absaugen von Abluft aus dem Raum vorgesehen sind. Für die Unterbringung aller notwendigen Bauelemente sind allein vier in Querrichtung verlaufende Zwischenwände und zwei weitere Zwischenwände vorgesehen, die in Längsrichtung verlaufen.A known from the prior art arrangement with luminaire function and climate function of the aforementioned type is in the DE 10 2005 038 199 A1 as well as in the GB 546005 described. It is a relatively bulky device for air conditioning a room in the form of a ceiling panel, which can be attached to the ceiling of a room. In the device, a radiator is integrated, which is mounted on the ceiling. The device has a comparatively large amount of reclaiming frame which is closed down from a cover plate. From the cover plate can be suspended a pendant light. It is also mentioned in the document that various lighting units can be arranged within the frame of the entire device, for example, an elongated lighting unit, which is housed in a side panel next to the centrally arranged in the device radiator. This elongated lamp unit can also be designed as a grid lamp. In the document, however, there are no further statements regarding the specific design of such a grid lamp. A disadvantage of the known arrangement is due to the size and design enormous space requirements. But the radiator, which is housed in a middle field of the housing frame, already has about the dimensions of a flat compact built modern light. For the accommodation of heat exchangers and the lighting unit more fields are provided. Additional vertical partitions are provided in which fans are arranged for the Passage of air through the radiator, are provided for the supply of fresh air into the room or the extraction of exhaust air from the room. For the accommodation of all necessary components four transverse walls extending in the transverse direction and two further intermediate walls are provided, which extend in the longitudinal direction.

Es ist zwar möglich, mehrere Leuchteneinheiten unterschiedlichen Typs in oder an dem Gehäuse der Vorrichtung unterzubringen, wie zum Beispiel runde und langgestreckte Leuchteneinheiten. Dies lässt jedoch außer Acht, dass für eine beispielsweise arbeitsplatzgerechte Ausleuchtung eines Raumes die Anordnung der Leuchten entsprechend der Architektur und der Nutzung des Raumes zu erfolgen hat, wozu in der Regel der Lichtplaner ein auf Berechnungen beruhendes Konzept erstellt. Bei Erwerb einer Anordnung der bekannten Art ist jedoch die Anordnung der Leuchten praktisch vorgegeben. Wird eine weitere oder mehrere weitere Leuchteneinheiten an anderer Stelle in dem Raum benötigt, müsste man mehrere der Gesamtvorrichtungen verwenden, was wegen der enormen Größe oft aus Platzgründen ausscheiden dürfte. Ein weiterer Nachteil der bekannten Anordnung liegt darin, dass diese für einen Einbau in eine abgehängte Decke nicht geeignet ist. Die Abmessungen entsprechen nicht den dort üblichen Rastermaßen. Die großvolumige Vorrichtung muss daher an der bauseitig vorhandenen festen Raumdecke (Betondecke) angebracht werden, wodurch in erheblichem Maße verfügbare Deckenhöhe verloren geht.Although it is possible to accommodate a plurality of lighting units of different types in or on the housing of the device, such as round and elongated lighting units. However, this does not take into account that, for example, a workplace-appropriate illumination of a room, the arrangement of the lights has to be made according to the architecture and the use of space, for which purpose the lighting planner usually creates a concept based on calculations. Upon acquisition of an arrangement of the known type, however, the arrangement of the lights is practically predetermined. If one or more other lighting units needed elsewhere in the room, you would have to use several of the overall devices, which is likely to retire because of the enormous size often for reasons of space. Another disadvantage of the known arrangement is that it is not suitable for installation in a suspended ceiling. The dimensions do not correspond to the usual grid dimensions. The large-volume device must therefore be attached to the on-site solid ceiling (concrete ceiling), which is lost to a considerable extent available ceiling height.

Ausgehend von dieser Problematik besteht die Aufgabe der vorliegenden Erfindung darin, eine Anordnung mit Beleuchtungsfunktion und gleichzeitiger Klimafunktion der eingangs genannten Gattung zur Verfügung zu stellen, die von wesentlich kompakterer Bauart ist und daher vielseitigere und variablere Einsatzmöglichkeiten zulässt.Based on this problem, the object of the present invention is to provide an arrangement with lighting function and simultaneous air conditioning function of the type mentioned, which is of much more compact design and therefore more versatile and more variable uses allows.

Die Lösung dieser Aufgabe liefert eine Anordnung mit Beleuchtungsfunktion der eingangs genannten Gattung mit den kennzeichnenden Merkmalen des Hauptanspruchs. Erfindungsgemäß ist vorgesehen, dass die Anordnung als Deckeneinbauleuchte ausgebildet ist und innerhalb eines einzigen in einer abgehängten Decke einzubauenden Leuchtengehäuses sowohl mindestens eine Leuchteneinheit umfassend Leuchtmittel und Mittel zur Lichtlenkung als auch mindestens eine Klimatisierungseinheit umfassend mindestens einen Ventilator untergebracht sind.The solution to this problem provides an arrangement with lighting function of the aforementioned type with the characterizing features of the main claim. According to the invention it is provided that the arrangement is designed as a ceiling luminaire and within a single in one Suspended ceiling luminaire housing both at least one lamp unit comprising lighting means and means for light guidance and at least one air conditioning unit comprising at least one fan are housed.

Die erfindungsgemäße Lösung ermöglicht es, die gewünschten beiden Funktonen, nämlich die Beleuchtungsfunktion und die Klimafunktion in nur einem einzigen vergleichsweise flachen Gehäuse mit etwa den Abmessungen einer modernen kompakten Deckeneinbauleuchte für einen Arbeitsplatz unterzubringen, die dann in einer abgehängten Decke so montiert werden kann, dass sie die Maße eines üblichen Rasterfelds einhält. Mit anderen Worten, es wird erfindungsgemäß eine Baueinheit mit einer Baugröße verwendet, die nur einem Bruchteil derjenigen der in der oben genannten Druckschrift gezeigten Anordnung entspricht. Es ergibt sich eine Größenreduzierung um ein mehrfaches mit dem weiteren Vorteil, dass auf die üblichen Rastermaße der Felder von abgehängten Decken zurückgegriffen werden kann, wie sie sonst für den Einbau herkömmlicher Deckeneinbauleuchten ohne Klimafunktion verwendet werden.The solution according to the invention makes it possible to accommodate the desired two functions, namely the lighting function and the air conditioning function in only a single comparatively flat housing with approximately the dimensions of a modern compact recessed ceiling light for a workplace, which can then be mounted in a suspended ceiling so that they the dimensions of a standard grid complies. In other words, it is used according to the invention, a unit of a size that corresponds to only a fraction of that shown in the above-mentioned document arrangement. It results in a reduction in size by a multiple with the further advantage that can be used on the usual grid dimensions of the fields of suspended ceilings, as they are otherwise used for the installation of conventional recessed ceiling lights without climate function.

Zudem ist die Montage einer erfindungsgemäßen Deckeneinbauleuchte mit Klimafunktion wesentlich einfacher zu bewerkstelligen, als dies bei der oben beschriebenen bekannten Anordnung der Fall ist. Es genügt, das entsprechende Deckenfeld zu entfernen, die erfindungsgemäße Einbauleuchte in das Deckenfeld der abgehängten Decke einzubauen und die Anschlüsse der für die verschiedenen Funktionen notwendigen Leitungen zu installieren. Hingegen war die bekannte Anordnung sehr voluminös und musste in mehreren Schritten aufwändig installiert werden. Aufgrund der Bauart war es auch nicht möglich, den Einbau in eine abgehängte Decke vorzunehmen, so dass folglich die Montage unter der vorhandenen Raumdecke erfolgen musste, was einen erheblichen Verlust an Raumhöhe zur Folge hatte. Schließlich war die bekannte Anordnung aufgrund ihrer Größe und ihres Volumens auch sehr aufwändig zu transportieren. Alle diese Probleme entfallen bei der erfindungsgemäßen Lösung. Es ist eine industrielle Serienfertigung möglich. Das als Leuchte und zur Klimatisierung eines Raumes dienende erfindungsgemäße Produkt lässt sich rasch und einfach montieren. Es wird wenig Verpackung benötigt und der Transport vom Hersteller zum Kunden ist einfach und kostengünstig. Der Kunde erwirbt eine Baueinheit, die mit derjenigen einer herkömmlichen Leuchte dieses Typs vergleichbar ist, aber mit der zusätzlichen Klimafunktion ausgestattet ist. Eine aufwändige gebäudeseitige Klimaanlage kann entfallen.In addition, the installation of a ceiling luminaire with climate function according to the invention is much easier to accomplish, as is the case with the known arrangement described above. It is sufficient to remove the corresponding ceiling panel to install the recessed light according to the invention in the ceiling of the suspended ceiling and to install the connections of the necessary lines for the various functions. By contrast, the known arrangement was very bulky and had to be laboriously installed in several steps. Due to the design, it was also not possible to make the installation in a suspended ceiling, so that consequently the installation had to be done under the existing ceiling, resulting in a significant loss of room height result. Finally, the known arrangement was due to their size and volume also very expensive to transport. All these problems are eliminated in the solution according to the invention. It is an industrial mass production possible. The inventive product serving as a light and for air conditioning of a room can be mounted quickly and easily. It will Little packaging is needed and transport from the manufacturer to the customer is easy and inexpensive. The customer acquires a unit comparable to that of a conventional lamp of this type, but equipped with the additional climate function. An elaborate building-side air conditioning can be omitted.

Gegenüber bekannten Deckeninduktionsdurchlässen mit Klimafunktion, die auch einen Einbau in ein Deckenfeld einer abgehängten Decke ermöglichten, besteht der Vorteil, dass erfindungsgemäß jeweils mindestens ein eigener Ventilator in die Deckeneinbauleuchte integriert ist, wodurch diese autark ist. Die bekannten Deckeninduktionsdurchlässe erforderten hingegen den Anschluss an eine zentrale Frischluftversorgungseinrichtung (mit entsprechend groß dimensioniertem Ventilator) bzw. eine zentrale Abluftansaugung. Die erfindungsgemäße Lösung hat dadurch unter anderem regelungstechnische Vorteile, da die Klimatisierungseinheit jeder Deckeneinbauleuchte über den in diese integrierten Ventilator eine individuell geregelte Frischluftzufuhr ermöglicht.Compared with known Deckeninduktionsdurchlässen with climate function, which also allowed installation in a ceiling panel of a suspended ceiling, there is the advantage that according to the invention at least one fan is integrated in the ceiling recessed light, making it self-sufficient. The known Deckeninduktionsdurchlässe, however, required the connection to a central fresh air supply device (with correspondingly large-sized fan) or a central exhaust air intake. Among other things, the solution according to the invention has control engineering advantages, since the air-conditioning unit of each recessed ceiling luminaire allows an individually controlled supply of fresh air via the fan integrated in it.

Das Abführen der Abluft oder die Absaugung der Abluft kann gemäß einer bevorzugten Variante der Erfindung zentral erfolgen, wobei diese Abluft dabei einen Wärmetauscher passieren kann, durch den im Gegenzug auch die Frischluft geleitet werden kann, so dass dort ein Wärmeaustausch stattfindet, bei dem die Frischluft vorzugsweise vorgewärmt oder vorgekühlt wird, bevor sie oberhalb der abgehängten Decke zu den einzelnen Ventilatoren der Deckeneinbauleuchten strömt und über diese dann dem Raum zugeführt wird. Gemäß einer weiteren bevorzugten Variante kann für die durch einen solchen beispielsweise für einen ganzen Raum vorgesehenen Wärmetauscher strömende Frischluft eine Filtervorrichtung vorgesehen sein, die Staubpartikel etc. aus der angesaugten Frischluft herausfiltert, so dass man die Frischluft bedenkenlos von außerhalb des Gebäudes ansaugen kann.The removal of the exhaust air or the extraction of the exhaust air can be done centrally according to a preferred variant of the invention, said exhaust air can pass through a heat exchanger, in return, the fresh air can be passed, so that there takes place a heat exchange in which the fresh air preferably preheated or pre-cooled before it flows above the suspended ceiling to the individual fans of the recessed ceiling lights and is then fed through this space. According to a further preferred variant, for the fresh air flowing through such a heat exchanger provided, for example, for a whole room, a filter device may be provided which filters out dust particles etc. from the fresh air sucked in so that the fresh air can be sucked in from outside the building without hesitation.

Ein weiterer wesentlicher Vorteil liegt darin, dass die erfindungsgemäße Leuchte in einem Raum dort in die Decke eingebaut werden kann, wo nach den lichttechnischen Berechnungen zur optimalen Ausleuchtung der Arbeitsplätze eine Leuchte platziert werden sollte. Aufgrund der kompakten Bauart ist es ohne weiteres möglich, eine entsprechende Anzahl von Leuchten in einem Raum aufzuhängen. Gleichzeitig ergibt sich der Vorteil, dass nicht nur die Beleuchtungsstärke auf den Arbeitsplatz bezogen optimiert dort zur Verfügung steht, wo sie benötigt wird, sondern auch eine Klimatisierung bezogen auf den jeweiligen Arbeitsplatz bereit gestellt wird, was eine erhebliche Erhöhung der Effizienz gegenüber herkömmlichen Raumklimaanlagen ermöglicht.Another significant advantage is that the luminaire according to the invention can be installed in a room in the ceiling where, according to the photometric calculations for optimum illumination of the workplaces placed a luminaire should be. Due to the compact design, it is easily possible to hang a corresponding number of lights in a room. At the same time, there is the advantage that not only the illuminance based on the workplace optimizes available where it is needed, but also an air conditioning is provided related to the respective workplace, which allows a significant increase in efficiency over conventional room air conditioning.

Gemäß einer bevorzugten Weiterbildung der vorliegenden Erfindung ist vorgesehen, dass die Deckeneinbauleuchte ein etwa rechteckiges Gehäuse aufweist, welches mindestens über einen Teil seiner Fläche nach unten hin offen ist und in in Längsrichtung oder Querrichtung hintereinander oder nebeneinander angeordnete rechteckige Felder unterteilt ist, von denen wenigstens eines ein Lichtaustrittsfeld einer Leuchteneinheit ist und wenigstens eines ein Luftaustritts- oder Lufteintrittsfeld einer Klimatisierungseinheit ist. Das "offene" Gehäuse kann selbstverständlich im Bereich der Lichtaustrittsfelder durch eine lichttechnisch wirksame Abdeckung wie zum Beispiel ein Prismenglas, eine transluzente Abdeckung oder dergleichen abgedeckt sein.According to a preferred embodiment of the present invention, it is provided that the recessed ceiling light has an approximately rectangular housing which is open at least over part of its surface downwards and is subdivided in longitudinal or transverse succession or juxtaposed rectangular fields, of which at least one is a light exit panel of a lamp unit and at least one is an air outlet or air inlet panel of an air conditioning unit. The "open" housing can of course be covered in the region of the light exit fields by a light-technically effective cover such as a prismatic glass, a translucent cover or the like.

Vorzugsweise sind dabei in Längsrichtung oder in Querrichtung der Leuchte gesehen drei sich jeweils über den überwiegenden Teil der Breite oder Länge des rechteckiges Gehäuses erstreckende rechteckige Felder vorgesehen, von denen zwei jeweils Lichtaustrittsfelder je einer Leuchteneinheit sind und von denen eines ein Luftaustritts- oder Lufteintrittsfeld einer Klimatisierungseinheit ist, vorzugsweise ein Luftaustrittsfeld mit diesem zugeordneten Ventilator, der Frischluft in den Raum abgibt.Preferably, seen in the longitudinal direction or in the transverse direction of the lamp three are provided over the vast majority of the width or length of the rectangular housing extending rectangular fields, two of which each light exit fields are each a lamp unit and one of which is an air outlet or air inlet panel of an air conditioning unit is, preferably an air outlet panel with this associated fan, which emits fresh air into the room.

Besonders bevorzugt ist eine Lösungsvariante, bei der mindestens zwei in Längsrichtung sich jeweils beidseitig bis nahe an das Ende des rechteckigen Gehäuses erstreckende beabstandete rechteckige Lichtaustrittsfelder vorgesehen sind, zwischen denen in einem in Längsrichtung oder Querrichtung gesehen etwa mittleren Bereich des Gehäuses ein rechteckiges Luftaustritts- oder Lufteintrittsfeld einer Klimatisierungseinheit angeordnet ist. Diese Variante ermöglicht eine lichttechnisch vorteilhafte Auslegung der Beleuchtungsfunktion, da man beispielsweise bei so angeordneten Lichtaustrittsfeldern die Leuchte so über einem Arbeitsplatz aufhängen kann, dass das Licht normgerecht unter günstigen Einfallswinkeln blendfrei auf den Arbeitsbereich fällt.Particularly preferred is a solution variant in which at least two in the longitudinal direction are provided on both sides to near the end of the rectangular housing extending rectangular rectangular light emission fields, between which in a longitudinal direction or transverse direction approximately central region of the housing, a rectangular air outlet or air inlet field an air conditioning unit is arranged. This variant allows a technically advantageous design of the lighting function, since you can hang the light over a workplace, for example, so arranged light emission fields that the light falls under normal conditions at low angles of incidence on the work area.

Die erfindungsgemäße Deckeneinbauleuchte mit Klimafunktion kann beispielsweise im Umriss annähernd quadratisch sein, bevorzugt mit Abmessungen, die einem Deckeneinbaufeld entsprechen.The ceiling recessed luminaire with climatic function according to the invention, for example, in the outline be approximately square, preferably with dimensions that correspond to a ceiling built-in field.

Bei einem Aufbau einer rechteckigen Deckeneinbauleuchte mit zwei äußeren Lichtaustrittsfeldern und einem mittigen Klimabereich kann man zum Beispiel die beiden Lichtaustrittsfelder als langgestreckte Felder mit Leuchtstoffröhren und einem lichtlenkenden Leuchtenraster ausführen, so dass die Anordnung insgesamt die Funktion von zwei kleineren beabstandeten Rasterleuchten erfüllt. In dem mittleren Bereich mit Klimafunktion kann beispielsweise ein größerer Ventilator oder mehrere kleinere Ventilatoren angeordnet sein. Oberhalb des Ventilators kann beispielsweise ein Wärmetauscher in dem Gehäuse der Deckeneinbauleuchte untergebracht sein, so dass die Frischluft dort vorgewärmt oder vorgekühlt wird. Zwischen der Ansaugseite des Ventilators und dem im Gehäuse weiter oberhalb liegenden Wärmetauscher sind nach einer möglichen bevorzugten Lösungsvariante schräge Luftleitbleche angeordnet, so dass die angesaugte Luft über eine größere Fläche durch den Wärmetauscher strömen kann bevor sie in die Ansaugung des Ventilators gelangt, der die Frischluft dem Raum zuführt.In a construction of a rectangular recessed ceiling luminaire with two outer Lichtaustrittsfeldern and a central climatic area can be run as elongated fields with fluorescent tubes and a light-guiding luminaire grid, for example, the two light exit fields, so that the arrangement performs the function of two smaller spaced-apart grid lights. In the central area with climatic function, for example, a larger fan or a plurality of smaller fans can be arranged. Above the fan, for example, a heat exchanger can be accommodated in the housing of the recessed ceiling light, so that the fresh air is preheated or pre-cooled there. Between the suction side of the fan and the heat exchanger located in the housing above oblique baffles are arranged for a possible preferred solution, so that the sucked air can flow over a larger area through the heat exchanger before it enters the suction of the fan, the fresh air to the Room feeds.

Gegenstand der vorliegenden Erfindung ist weiterhin eine Einrichtung zur Beleuchtung und Klimatisierung eines Raumes umfassend mindestens eine als Deckeneinbauleuchte ausgebildete Anordnung mit Beleuchtungsfunktion und Klimafunktion der vorgenannten Art, die erfindungsgemäß weiterhin wenigstens einen einer oder mehreren Deckeneinbauleuchten zugeordneten, zu diesen separat angeordneten Wärmetauscher umfasst, der von der den Deckeneinbauleuchten zuzuführenden Frischluft und/oder der Abluft aus dem Raum (im Gegenstrom) durchströmt wird. Dieser Wärmetauscher ist bevorzugt im Bereich einer Außenwand des Gebäudes oder in deren Nähe angeordnet. Weiterhin ist dieser bevorzugt in einer Ebene oberhalb der abgehängten Decke angeordnet beziehungsweise die Frischluftzufuhr dieses Wärmetauschers erfolgt in den Raum oberhalb der abgehängten Decke hinein. Der genannte Wärmetauscher kann beispielsweise ein Plattenwärmetauscher sein, der ohne Kühlmittel arbeitet, so dass lediglich ein Temperaturaustausch zwischen der zugeführten Frischluft und der aus dem Raum abgeführten Abluft stattfindet. Wenn, was bevorzugt der Fall ist, weiterhin eine Filtervorrichtung für die Zuluft im Bereich dieses Wärmetauschers vorgesehen ist, dann wird quasi Reinluft in den Raum oberhalb der abgehängten Decke eingeführt, wobei diese je nach Jahreszeit entweder vorgekühlt (im Sommer) oder vorgewärmt (im Winter) wird. Diese vorkonditionierte Reinluft wird dann von dem jeweiligen Ventilator der Deckeneinbauleuchte(n) angesaugt. Der Wärmetauschvorgang erfolgt somit bei dieser Variante der Erfindung räumlich getrennt von der bzw. den Deckeneinbauleuchten. In den einzelnen Deckeneinbauleuchten können Ventilatoren verwendet werden, deren Aufgabe darin besteht, lediglich den entsprechenden (dieser Deckeneinbauleuchte zugeordneten) Teilbereich des Raumes mit bereits vorkonditionierter und gereinigter Frischluft zu versorgen. Diese Lösung hat den Vorteil, dass die Frischluft mit vergleichsweise geringer Strömungsgeschwindigkeit dem Raum zugeführt werden kann, wobei diese noch individuell für die einzelne Deckeneinbauleuchte eingestellt werden kann. Herkömmliche Klimaanlagen arbeiten hingegen meist mit einem zentralen Ventilator, der den ganzen Raum oder ein ganzes Gebäude mit Frischluft versorgen muss und deshalb mit einer entsprechend großen Leistung arbeitet, wodurch auch vergleichsweise hohe Strömungsgeschwindigkeiten erzeugt werden, so dass beim Einblasen der Frischluft in den Raum starke Luftbewegungen entstehen, die von den Personen, die sich im Raum aufhalten, als unangenehme Zugluft empfunden werden.The present invention further relates to a device for lighting and air conditioning of a room comprising at least one designed as a ceiling luminaire arrangement with lighting function and climate function of the aforementioned type, the invention further comprises at least one associated with one or more recessed ceiling luminaires, these separately arranged heat exchanger, of the the recessed ceiling lights to be supplied fresh air and / or the exhaust air from the room (in countercurrent) is flowed through. This heat exchanger is preferably arranged in the region of an outer wall of the building or in the vicinity thereof. Furthermore, this is preferred in arranged a plane above the suspended ceiling or the fresh air supply of this heat exchanger takes place in the space above the suspended ceiling. Said heat exchanger can be, for example, a plate heat exchanger, which operates without coolant, so that only a temperature exchange between the supplied fresh air and discharged from the room exhaust air takes place. If, as preferred, a filter device for the supply air in the area of this heat exchanger is provided, then quasi clean air is introduced into the space above the suspended ceiling, which either pre-cooled (summer) or preheated depending on the season (in winter ) becomes. This preconditioned clean air is then sucked in by the respective fan of the recessed ceiling light (s). The heat exchange process is thus spatially separated from the or the recessed ceiling lights in this variant of the invention. In the individual recessed ceiling luminaires fans can be used, whose task is to supply only the corresponding (this ceiling downlight assigned) portion of the room with already preconditioned and purified fresh air. This solution has the advantage that the fresh air with comparatively low flow rate can be supplied to the room, which can still be set individually for the individual ceiling luminaire. Conventional air conditioning systems, however, usually work with a central fan, which must supply the entire room or a whole building with fresh air and therefore operates with a correspondingly large power, which also comparatively high flow velocities are generated, so that when blowing the fresh air into the room strong air movements arise, which are perceived by the people who are in the room, as an unpleasant drafts.

Die in den Unteransprüchen beschriebenen Merkmale betreffen bevorzugte Weiterbildungen der erfindungsgemäßen Aufgabenlösung. Weitere Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Detailbeschreibung.The features described in the dependent claims relate to preferred developments of the task solution according to the invention. Further advantages of the present invention will become apparent from the following detailed description.

Nachfolgend wird die vorliegende Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Zeichnungen näher erläutert. Dabei zeigen:

  • Figur 1 eine perspektivische Ansicht einer Deckeneinbauleuchte gemäß einer ersten möglichen Variante der vorliegenden Erfindung;
  • Figur 2 eine vertikale Schnittansicht durch die Deckeneinbauleuchte gemäß Figur 1;
  • Figur 3 eine schematisch vereinfachte vertikale Schnittdarstellung eines Raumes, in dessen Decke Leuchten der in Figur 1 gezeigten Art eingebaut wurden;
  • Figur 4 einen vergrößerten horizontalen Schnitt durch einen Wärmetauscher, der bei einer erfindungsgemäßen Einrichtung zur Klimatisierung eines Raumes zum Einsatz kommen kann;
  • Figur 5 eine perspektivische Ansicht einer Deckeneinbauleuchte gemäß einer zweiten Variante der vorliegenden Erfindung;
  • Figur 6 eine vertikale Schnittansicht durch die Deckeneinbauleuchte von Figur 5.
Hereinafter, the present invention will be explained in more detail by means of embodiments with reference to the accompanying drawings. Showing:
  • FIG. 1 a perspective view of a ceiling luminaire according to a first possible variant of the present invention;
  • FIG. 2 a vertical sectional view through the recessed ceiling luminaire according to FIG. 1 ;
  • FIG. 3 a schematically simplified vertical sectional view of a room in whose ceiling lights the in FIG. 1 were installed kind shown;
  • FIG. 4 an enlarged horizontal section through a heat exchanger, which can be used in a device according to the invention for the air conditioning of a room used;
  • FIG. 5 a perspective view of a ceiling luminaire according to a second variant of the present invention;
  • FIG. 6 a vertical sectional view through the recessed ceiling of FIG. 5 ,

Zunächst wird auf Figur 1 Bezug genommen und anhand dieser eine erste mögliche Ausführungsvariante der vorliegenden Erfindung erläutert. Die perspektivische Darstellung zeigt eine für den Deckeneinbau vorgesehene erfindungsgemäße Leuchte, die insgesamt mit 10 bezeichnet ist. Diese Leuchte weist ein Gehäuse 11 auf, das im Umriss rechteckig bzw. annähernd quadratisch ist. Diesem Gehäuse 11, welches nach dem Einbau weitgehend von einer abgehängten Decke, in die es eingebaut ist, verdeckt wird, ist unterseitig mit einem gegenüber dem Gehäuse nach außen etwas vorstehenden Blendrahmen 12 versehen, der nach dem Einbau oberseitig an der abgehängten Decke anliegt und die Deckenöffnung verdeckt, wie dies auch bei einer herkömmlichen Deckeneinbauleuchte dieses Typs üblicherweise der Fall ist.First, it will open FIG. 1 Reference is made and explained with reference to this a first possible embodiment of the present invention. The perspective view shows an intended for ceiling installation lamp according to the invention, which is generally designated 10. This lamp has a housing 11 which is rectangular in outline or approximately square. This housing 11, which is largely concealed after installation of a suspended ceiling in which it is installed, is provided on the underside with a respect to the housing outwardly slightly projecting frame 12, which rests on the top of the suspended ceiling after installation and the Ceiling opening concealed, as is also the case with a conventional recessed ceiling light of this type is usually the case.

Die erfindungsgemäße Deckeneinbauleuchte 10 weist wie man in Figur 1 erkennt zwei Leuchteneinheiten 13 und 14 auf, zwischen denen eine Klimaeinheit 15 angeordnet ist. Um die Anordnung der verschiedener Felder der Unterseite der Leuchte, die diese funktionellen Einheiten bilden, in ihrer relativen Ausrichtung zueinander zu definieren, wird auf die vier Begrenzungskanten des Blendrahmens 12 zurück gegriffen. Der Blendrahmen 12 unterseitig an dem Gehäuse ist rechteckig im Umriss und wird begrenzt an der rechten Längsseite durch die Begrenzungskante 17, an der vorderen Querseite durch die Begrenzungskante 20, an der hinteren Querseite durch die Begrenzungskante 18 und an der linken Längsseite durch die Begrenzungskante 19. Auch wenn die Leuchte im Umriss quadratisch oder annähernd quadratisch ist, wird hierin von Längsseiten und Querseiten gesprochen, um die Beschreibung zu erleichtern, wobei hier auf die Ausrichtung der Leuchteneinheiten 13 und 14 abgestellt wird. Diese beiden Leuchteneinheiten 13, 14 sind jeweils rechteckige langgestreckte Felder, in denen ein Lichtaustritt nach unten hin erfolgt. Diese Felder sind beispielsweise durch ein Prismenglas oder eine transluzente Abdeckung abgedeckt, um eine Lichtstreuung zu erzielen. Die in der Zeichnung rechte Leuchteneinheit 13 erstreckt sich dabei in Längsrichtung parallel zur Begrenzungskante 17 und grenzt an seiner Außenseite nahe an diese Begrenzungskante 17 an. Weiterhin erstreckt sich die Leuchteneinheit 13 weitgehend über die gesamte Länge der Leuchte zwischen den beiden Begrenzungskanten 20 vorn und 18 hinten. In der Breite erstreckt sich die rechteckige Leuchteneinheit 13 etwa über ein Drittel der Leuchte und grenzt links an die Klimaeinheit 15 an, die sich mittig erstreckt. Diese im mittleren Bereich der Leuchte angeordnete Klimaeinheit 15 ist etwas breiter als ein Drittel der Leuchte in Querrichtung gesehen (zwischen den Begrenzungskanten 19 und 17). Weiter erstreckt sich die Klimaeinheit 15 in Längsrichtung etwa über die gesamte Länge der Leuchte zwischen den Begrenzungskanten 20 und 18.The ceiling recessed luminaire 10 according to the invention has as in FIG. 1 recognizes two lamp units 13 and 14, between which an air conditioning unit 15 is arranged. To the arrangement of the various fields of the bottom of the lamp that make up these functional units, in their relative orientation to define each other, is resorted to the four boundary edges of the frame 12 back. The frame 12 on the underside of the housing is rectangular in outline and is bounded on the right longitudinal side by the boundary edge 17, on the front transverse side by the boundary edge 20, on the rear transverse side by the boundary edge 18 and on the left longitudinal side by the boundary edge 19th Although the luminaire is square or approximately square in outline, it is referred to herein as longitudinal and transverse sides to facilitate the description, focusing here on the orientation of the luminaire units 13 and 14. These two lamp units 13, 14 are each rectangular elongated fields in which a light emission takes place downwards. These fields are covered, for example, by a prism glass or a translucent cover to achieve light scattering. The right in the drawing lamp unit 13 extends in the longitudinal direction parallel to the boundary edge 17 and adjacent to its outer side close to this boundary edge 17. Furthermore, the lamp unit 13 extends substantially over the entire length of the lamp between the two boundary edges 20 front and 18 rear. In the width, the rectangular lamp unit 13 extends approximately over one third of the lamp and adjoins the left of the air conditioning unit 15, which extends centrally. This arranged in the central region of the lamp air conditioning unit 15 is slightly wider than a third of the lamp seen in the transverse direction (between the boundary edges 19 and 17). Further, the air conditioning unit 15 extends in the longitudinal direction approximately over the entire length of the lamp between the boundary edges 20 and 18th

Das mittige Feld der Klimaeinheit 15 ist beidseitig flankiert von den beiden Leuchteneinheiten 13 und 14. Etwa in der Mitte der Klimaeinheit 15 befindet sich bei dieser Ausführungsvariante ein Ventilator 16. Dieser Ventilator gibt Frischluft in den Raum unter der Deckeneinbauleuchte ab. Links neben der Klimaeinheit 15 befindet sich die zweite rechteckige Leuchteneinheit 14, die in ihren Abmessungen und in ihrer Ausführung im Prinzip gleich gestaltet ist wie die rechte Leuchteneinheit 13. An der rechten Seite grenzt die Leuchteneinheit 14 nahezu an die linke Begrenzungskante 19. Die Leuchteneinheit 14 erstreckt sich weitgehend über die Länge der Leuchte in Längsrichtung zwischen den beiden Begrenzungskanten 20 und 18. Es ergibt sich somit ein dreiteiliger Aufbau der Leuchte, der symmetrisch ist zu einer gedachten Mittelebene, die senkrecht durch das Gehäuse läuft, parallel zu den beiden Begrenzungskanten 19 und 17.The central panel of the air conditioning unit 15 is flanked on both sides by the two lamp units 13 and 14. Approximately in the middle of the air conditioning unit 15 is in this embodiment, a fan 16. This fan gives fresh air into the room under the ceiling light. To the left of the air conditioning unit 15 is the second rectangular lamp unit 14, which is designed in principle in their dimensions and in their execution the same as the right lamp unit 13. On the right side of the lamp unit 14 is almost adjacent to the left boundary edge 19. The lamp unit 14th extends largely over the length of the lamp in the longitudinal direction between the two boundary edges 20th and 18. Thus, there is a three-part construction of the lamp, which is symmetrical to an imaginary center plane, which runs vertically through the housing, parallel to the two boundary edges 19 and 17th

Nähere Details betreffend den Aufbau der Leuchte im Inneren ergeben sich aus der Schnittdarstellung gemäß Figur 2, die einen vertikalen Querschnitt durch die Leuchte zeigt in einer Ebene, die zwischen den beiden Begrenzungskanten 20 und 18 verläuft. Man erkennt hier den Ventilator 16, der die Frischluft von oberhalb her ansaugt, wobei diese durch Luftleitbleche 25 geführt wird, oberhalb derer sich ein Wärmetauscher 26 im Gehäuse der Deckeneinbauleuchte befindet. Durch diesen Wärmetauscher kann die angesaugte Frischluft im Sommer vorgekühlt werden oder auch im Winter gegebenenfalls vorgewärmt werden. Dieser Wärmetauscher kann beispielsweise ein Plattenwärmetauscher sein, wobei Kühlmittel, z. b. Wasser durch in Schleifen verlegte Rohre hindurch strömt und so vorgekühlt wird.Further details concerning the construction of the luminaire in the interior can be found in the sectional view according to FIG FIG. 2 showing a vertical cross section through the luminaire in a plane extending between the two boundary edges 20 and 18. It can be seen here, the fan 16, which sucks the fresh air from above, this being guided by baffles 25, above which there is a heat exchanger 26 in the housing of the recessed ceiling light. Through this heat exchanger, the intake fresh air can be pre-cooled in the summer or preheated in winter, if necessary. This heat exchanger can be, for example, a plate heat exchanger, wherein coolant, for example water flows through pipes laid in loops and is thus pre-cooled.

In Figur 2 erkennt man weiterhin, dass die beiden Leuchteneinheiten jeweils unterseitig durch die Prismenabdeckungen oder transluzente Abdeckungen 14 a bzw. 13 a abgedeckt werden. Oberhalb dieser befindet sich jeweils ein Aufnahmeraum mit einer Lampe 21 bzw. 22, vorzugsweise jeweils einer langgestreckten Leuchtstofflampe, deren Licht jeweils über einen Längsreflektor 23 bzw. 24 für die Lichtabgabe zur Unterseite der Leuchte hin ausgerichtet wird. In einem jeweils oberen Raum 28 oberhalb der horizontalen Zwischenwand 29, die das Gehäuse der Leuchteneinheit 13 nach oben hin begrenzt, können notwendige Installationseinheiten für die Leuchteneinheit wie z. B. Vorschaltgeräte und dergleichen untergebracht werden. Dieser obere Raum wird oberseitig begrenzt von der Gehäusedecke 27 der gesamten Deckeneinbauleuchte. Das Gesamtgehäuse ist somit etwas höher als die jeweiligen Einzelgehäuse der beiden Leuchteneinheiten 13 und 14. Dadurch ist genug Raum vorhanden für die Unterbringung eines Wärmetauschers 26 (hier in dem mittleren Bereich oberhalb des Ventilators 16). Dieser Wärmetauscher muss aber nicht vorhanden sein, da für die Kühlung (oder Vorwärmung) der Frischluft auch ein an geeigneter Stelle untergebrachter zentraler Wärmetauscher dienen kann, der nicht einer einzelnen Deckeneinbauleuchte zugeordnet ist. Dies wird nachfolgend unter Bezugnahme auf die Figur 3 näher erläutert.In FIG. 2 can be seen further that the two lighting units are each covered on the underside by the prism covers or translucent covers 14 a and 13 a. Above this is in each case a receiving space with a lamp 21 or 22, preferably in each case an elongated fluorescent lamp whose light is aligned in each case via a longitudinal reflector 23 and 24 for the light output to the underside of the lamp. In a respective upper space 28 above the horizontal partition 29, which limits the housing of the lamp unit 13 upwards, necessary installation units for the lamp unit such. As ballasts and the like can be accommodated. This upper space is bounded on the upper side by the housing cover 27 of the entire recessed ceiling luminaire. The overall housing is thus slightly higher than the respective individual housing of the two lamp units 13 and 14. Thereby, enough space is available for accommodating a heat exchanger 26 (here in the central area above the fan 16). However, this heat exchanger does not have to be present, because for the cooling (or preheating) of the fresh air can also serve a suitable place housed central heat exchanger, which is not a single recessed ceiling luminaire assigned. This will be explained below with reference to the FIG. 3 explained in more detail.

Figur 3 zeigt einen schematisch vereinfachten Längsschnitt durch einen auszuleuchtenden Raum in zum Beispiel einem Büro. Mit Abstand unterhalb der festen Raumdecke 30 befindet sich die abgehängte Decke 31, in die die Deckeneinbauleuchten 10 gemäß der vorliegenden Erfindung eingebaut werden. Je nach Gestaltung des Raumes, Größe des Raumes, Anzahl der Arbeitsplätze etc. wird eine entsprechende Anzahl von Deckeneinbauleuchten verwendet. Diese werden im Allgemeinen in Abständen zueinander jeweils in Querrichtung und in Längsrichtung angeordnet. In der Schnittebene durch den Raum sind in dem Beispiel nach Figur 3 drei solcher Deckeneinbauleuchten 10 erkennbar. Es handelt sich um erfindungsgemäße Leuchten mit Beleuchtungs- und Klimafunktion wie zuvor unter Bezugnahme auf die Figuren 1 und 2 beschrieben. In dem Ausführungsbeispiel gemäß Figur 3 ist weiterhin ein zentraler Wärmetauscher 32 oberhalb der abgehängten Decke 31 im Randbereich des Raumes an die Außenwand 33 angrenzend angeordnet. FIG. 3 shows a schematically simplified longitudinal section through a space to be illuminated in, for example, an office. At a distance below the fixed ceiling 30 is the suspended ceiling 31, in which the recessed ceiling lights 10 are installed according to the present invention. Depending on the design of the room, size of the room, number of workplaces, etc., a corresponding number of recessed ceiling lights is used. These are generally arranged at intervals in each case in the transverse direction and in the longitudinal direction. In the sectional plane through the room are in the example after FIG. 3 three such recessed ceiling lights 10 recognizable. These are lights according to the invention with lighting and climate function as previously with reference to the FIGS. 1 and 2 described. In the embodiment according to FIG. 3 Furthermore, a central heat exchanger 32 is arranged above the suspended ceiling 31 adjacent to the outer wall 33 in the edge area of the room.

Es handelt sich beispielsweise um einen Gegenstromplattenwärmetauscher wie er in Figur 4 dargestellt ist. Dort wird die bei 40 eintretende Abluft, die von einem ersten Axiallüfter 45 angesaugt wird und den Wärmetauscher über die Öffnung 41 wieder verlässt, im Gegenstrom über Kreuz geführt mit der durch die Öffnung 42 zugeführten Zuluft, die von einem zweiten Axiallüfter 46 angesaugt wird und den Wärmetauscher durch die Öffnung 43 wieder verlässt. Die Abluft bzw. Zuluft strömt durch Platten, die beispielsweise horizontal und parallel angeordnet sind. Dabei ist für die bei 42 von außen eintretende Zuluft eine vorgeschaltete Filtervorrichtung 44 vorgesehen, mittels derer Staubpartikel etc. aus der zugeführten Zuluft entfernt werden. Über die Öffnung 43 gelangt dann die gefilterte Zuluft in die Zwischendecke. In dem Wärmetauscher findet ein Temperaturausgleich zwischen Zuluft und Abluft statt. Ist zum Beispiel die von außerhalb des Gebäudes zugeführte Frischluft im Sommer wärmer als die aus dem Raum abgegebene Abluft, kann über letztere die Zuluft bereits vorgekühlt werden. Die durch den Zwischenraum zwischen Raumdecke 30 und abgehängter Decke 31 strömende Zuluft (siehe Figur 3) gelangt dann zu den einzelnen Klimaeinheiten der diversen Deckeneinbauleuchten 10 und wird dort gegebenenfalls weiter gekühlt und über die Ventilatoren als gefilterte und gekühlte Frischluft dem Raum zugeführt.It is, for example, a countercurrent plate heat exchanger as in FIG. 4 is shown. There, the exhaust air entering at 40, which is sucked in by a first axial fan 45 and leaves the heat exchanger via the opening 41 again in cross-flow with the supplied through the opening 42 supply air, which is sucked by a second axial fan 46 and the Exits heat exchanger through the opening 43 again. The exhaust air or supply air flows through plates, which are arranged for example horizontally and in parallel. In this case, an upstream filter device 44 is provided for the inlet air entering from the outside at 42, by means of which dust particles etc. are removed from the supplied supply air. About the opening 43 then passes the filtered supply air into the false ceiling. In the heat exchanger, a temperature compensation between supply air and exhaust air takes place. If, for example, the fresh air supplied from outside the building is warmer in summer than the exhaust air emitted from the room, the supply air can already be pre-cooled via the latter. The air flowing through the space between the ceiling 30 and the suspended ceiling 31 incoming air (see FIG. 3 ) then to the individual air conditioning units of the various recessed ceiling lights 10 and is there optionally further cooled and fed via the fans as filtered and cooled fresh air to the room.

Nachfolgend wird auf die Figuren 5 und 6 Bezug genommen und anhand dieser ein weiteres Ausführungsbeispiel entsprechend einer Variante der Erfindung näher erläutert. In Figur 5 ist wiederum eine perspektivische Ansicht dargestellt, wobei die dort gezeigte Deckeneinbauleuchte 10 derjenigen gemäß Figur 1 im prinzipiellen Aufbau ähnlich ist. Beide Leuchten unterscheiden sich zum einen jeweils in der Lichttechnik der jeweiligen Leuchteneinheiten 53, 54. Außerdem sind die beiden Leuchteneinheiten hier etwas schmaler ausgebildet, wodurch der mittlere Bereich mit der Klimaeinheit 55 etwas breiter ausgeführt ist. In den beiden Leuchteneinheiten 53, 54 ist hier anstelle einer Prismenabdeckung jeweils ein Raster mit Reflektoren und Querlamellen 56 vorgesehen, so dass jede der beiden Leuchteneinheiten 53, 54 die lichttechnische Funktion einer schmalen langgestreckten Rasterleuchte erfüllt. Weitere Details der in Figur 5 dargestellten Deckeneinbauleuchte 10 ergeben sich aus der Schnittdarstellung gemäß Figur 6, die einen vertikalen Schnitt durch eine der Leuchteneinheiten zeigt, der in einer Ebene senkrecht zu dem Schnitt in Figur 2 verläuft.Below is on the Figures 5 and 6 Reference is made and explained in more detail with reference to this another embodiment according to a variant of the invention. In FIG. 5 again, a perspective view is shown, wherein the recessed ceiling light 10 shown there according to FIG FIG. 1 is similar in the basic structure. Both lamps differ on the one hand in each case in the lighting technology of the respective lighting units 53, 54. In addition, the two lighting units are designed here somewhat narrower, whereby the central area is designed slightly wider with the air conditioning unit 55. In the two lamp units 53, 54, a grid with reflectors and transverse fins 56 is provided here instead of a prism cover, so that each of the two lamp units 53, 54 fulfills the photometric function of a narrow, elongate louver lamp. Further details of in FIG. 5 illustrated recessed luminaire 10 result from the sectional view according to FIG. 6 , which shows a vertical section through one of the lamp units, which is in a plane perpendicular to the section in FIG. 2 runs.

In dem Rasterbereich sind Längsreflektoren 57 vorgesehen sowie stirnseitige Reflektoren 58 für die Lichtlenkung, die mit den bereits erwähnten Querlamellen 56 zusammenwirken. Von der Ansaugseite des Ventilators 16 nach oben verlaufen in jeweils einem schrägen Winkel Luftleitbleche 25 beidseitig des Ventilators und erstrecken sich oberseitig bis an einen Wärmetauscher 26 heran. Dieser wurde bereits bei der Beschreibung von Figur 2 erwähnt, ebenso wie die Luftleitbleche 25. In Figur 6 erkennt man links oben und rechts oben auch die in Schleifen verlegten Rohre 59, durch die das Kühlmittel geleitet wird. Die von dem Ventilator 16 angesaugte Luft kann somit durch den Wärmetauscher 26 gekühlt werden, bevor sie in den Raum geblasen wird.In the grid area longitudinal reflectors 57 are provided as well as end reflectors 58 for the light steering, which cooperate with the above-mentioned transverse blades 56. From the suction side of the fan 16 extend upward in each case at an oblique angle baffles 25 on both sides of the fan and extend on the upper side to a heat exchanger 26 zoom. This was already in the description of FIG. 2 mentioned, as well as the baffles 25. In FIG. 6 can be seen left above and right above also laid in loops tubes 59, through which the coolant is passed. The air drawn in by the fan 16 can thus be cooled by the heat exchanger 26 before it is blown into the room.

Es wird erneut auf Figur 5 Bezug genommen. Wie man dort erkennt erstrecken sich die beiden parallelen beabstandeten Leuchteneinheiten 53, 54 im wesentlichen über die gesamte Länge der Deckeneinbauleuchte in einer Raumrichtung, die hierin zur Vereinfachung wiederum als Längsrichtung angesehen werden soll. Außen grenzen dabei die beiden Leuchteneinheiten 53, 54 recht nahe an die jeweiligen Begrenzungskanten 19, 17 des Blendrahmens 12 an. Über die Breite der gesamten Deckeneinbauleuchte gesehen erstreckt sich die Leuchteneinheit jeweils über beispielsweise etwa ein fünftel der Gesamtbreite der Leuchte. Da die Anordnung der beiden Leuchteneinheiten bezüglich einer durch den Ventilator 16 gehenden vertikalen mittigen Symmetrieebene symmetrisch ist, verbleiben für die Breite des mittleren Bereichs der Klimaeinheit 55 etwa drei fünftel der Gesamtbreite. Diese Maße sind selbstverständlich nur Werte, die sich empirisch oder aufgrund lichttechnischer Berechnungen für einen konkreten Anwendungsfall als vorteilhaft erwiesen haben, so dass auch andere Festlegungen der Proportionen der Leuchteneinheiten bzw. der Klimaeinheit für andere Varianten der Deckeneinbauleuchte im Rahmen der vorliegenden Erfindung in Betracht kommen. Die vorliegende Erfindung ist somit keinesfalls auf die in den Beispielen gemäß Figur 1 und 5 gezeigten Lösungsvarianten beschränkt.It will be up again FIG. 5 Referenced. As can be seen there, the two parallel spaced-apart lighting units 53, 54 extend substantially over the entire length of the recessed ceiling light in a spatial direction, which in turn should be regarded herein as a longitudinal direction for simplicity. On the outside, the two lighting units 53, 54 are quite close to the respective boundary edges 19, 17 of the window frame 12. Seen over the width of the entire ceiling recessed luminaire, the luminaire unit extends over, for example, about one fifth of the total width of the luminaire. Since the arrangement of the two lamp units is symmetrical with respect to a vertical central plane of symmetry passing through the fan 16, the width of the central area of the air conditioning unit 55 remains about three-fifths of the total width. Of course, these dimensions are only values which have proved to be advantageous empirically or on account of photometric calculations for a specific application, so that other definitions of the proportions of the lamp units or of the air conditioning unit can be considered for other variants of the recessed luminaire in the context of the present invention. The present invention is therefore in no way to those in the examples according to FIG. 1 and 5 limited shown solution variants.

Claims (10)

  1. An arrangement having a lighting function and air-conditioning function, comprising at least one lighting means, means for guiding light, which are assigned to the at least one lighting means, and at least one fan, which is accommodated in the arrangement,
    wherein the arrangement is embodied as a recessed luminaire and at least one lighting unit, comprising lighting means and means for guiding light as well as at least one air-conditioning unit, comprising at least one fan are accommodated within a single luminaire housing, which is to be installed in a suspended ceiling, characterized in that a heat exchanger (26), which encompasses pipelines for a coolant, is arranged in the housing of the recessed luminaire in the upper area, and in that the heat exchanger (26) is arranged above a suction area of the fan (16), so that the fresh air, which is drawn in by said fan, flows through the heat exchanger prior to being emitted into the space below the recessed luminaire.
  2. The arrangement having a lighting function and air-conditioning function according to claim 1, characterized in that it encompasses a rectangular or square housing, which is divided into rectangular fields arranged next to one another, at least one of which is a light exit field of a luminaire unit (13, 14) and at least one of which is an air exit or air inlet field of an air-conditioning unit (15).
  3. The arrangement having a lighting function and air-conditioning function according to claim 2, characterized in that, viewed in longitudinal direction of the arrangement, provision is made for three rectangular fields, each of which extends across the predominant part of the length of the housing, two of which are in each case light exit fields of one luminaire unit (13, 14), and one of which is an air exit or air inlet field of an air-conditioning unit (15).
  4. The arrangement having a lighting function and air-conditioning function according to claim 3, characterized in that provision is made for at least two spaced-apart rectangular light exit fields, which extend in longitudinal direction in each case close to the end of the rectangular housing, between which a rectangular air exit or air inlet field of an air-conditioning unit (15) is arranged in an approximately central area of the housing, viewed in transverse direction.
  5. The arrangement having a lighting function and air-conditioning function according to one of claims 1 to 4, characterized in that it encompasses a rectangular or square housing (11), which can be installed completely into a suspended ceiling, up to a blind frame (12), which projects laterally on all sides in relation to the housing, and which rests against the suspended ceiling on the top when the recessed luminaire (10) is installed.
  6. The arrangement having a lighting function and air-conditioning function according to one of claims 1 to 5, characterized in that provision is made for the luminaire units (13, 14) for a prismatic cover or translucent cover (13 a, 14 a), which is in each case located approximately in the plane of the blind frame (12).
  7. The arrangement having a lighting function and air-conditioning function according to one of claims 1 to 6, characterized in that the luminaire units are embodied as louvred luminaires (53, 54) and in each case encompass suitable means for light guiding, such as reflectors (57, 58), horizontal lamellae (56) or the like.
  8. The arrangement having a lighting function and air-conditioning function according to one of claims 1 to 7, characterized in that air baffles (25) are arranged between the heat exchanger (26) and the draw-in area of the fan (16), inclined at an angle to the vertical, so that the fresh air, which is drawn-in and which flows through the heat exchanger, reaches the draw-in area of the fan (16) in a centered manner.
  9. A device for lighting and air-conditioning a space, comprising at least one arrangement embodied as recessed luminaire having a lighting function and air-conditioning function according to one of claims 1 to 8, characterized in that it furthermore comprises at least one heat exchanger (32), which is assigned to one or a plurality of recessed luminaires (10), and which is arranged separately to said luminaires, and through which the fresh air and/or the exhaust air from the room, which is to be supplied to the recessed luminaires, flows (in countercurrent flow).
  10. The device for lighting and air-conditioning a space according to claim 9, characterized in that the separately arranged heat exchanger (32) encompasses at least one filter device (44), which is arranged upstream, in the flow path of the supply air (42), which is supplied from outside.
EP09700672A 2008-01-09 2009-01-08 Recessed ceiling light with integrated fan Not-in-force EP2232159B1 (en)

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DE200810003674 DE102008003674A1 (en) 2008-01-09 2008-01-09 Arrangement with lighting function and climate function
PCT/EP2009/000066 WO2009087096A1 (en) 2008-01-09 2009-01-08 Recessed ceiling light with integrated fan

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DE102013102121A1 (en) 2013-03-04 2014-09-04 Manfred Grimm Assembly with lighting and air conditioning function mounted in ceiling of room of e.g. hospitals, has heat exchanger that is comprised such that fresh air is sucked-in from ventilator before discharged into space under ceiling light

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WO2009087096A1 (en) 2009-07-16
EP2232159A1 (en) 2010-09-29
DE102008003674A1 (en) 2009-07-16

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