EP2994693B1 - Élément de recouvrement pour luminaire surfacique - Google Patents

Élément de recouvrement pour luminaire surfacique Download PDF

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Publication number
EP2994693B1
EP2994693B1 EP14719279.3A EP14719279A EP2994693B1 EP 2994693 B1 EP2994693 B1 EP 2994693B1 EP 14719279 A EP14719279 A EP 14719279A EP 2994693 B1 EP2994693 B1 EP 2994693B1
Authority
EP
European Patent Office
Prior art keywords
light
luminaire
housing
cover
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14719279.3A
Other languages
German (de)
English (en)
Other versions
EP2994693A1 (fr
Inventor
Michael Spiegel
Tanja ILIC
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
Original Assignee
Zumtobel Lighting GmbH Austria
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 filed Critical Zumtobel Lighting GmbH Austria
Publication of EP2994693A1 publication Critical patent/EP2994693A1/fr
Application granted granted Critical
Publication of EP2994693B1 publication Critical patent/EP2994693B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/041—Optical design with conical or pyramidal surface
    • 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
    • F21Y2101/00—Point-like light sources
    • 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
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional 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 present invention relates to a frame-like cover member according to the preamble of claim 1, which is provided for covering the edge region of a so-called surface light.
  • a corresponding lamp is for example from the DE 10 2004 019 137 A1 known.
  • the WO 2007/130536 A2 discloses a luminaire of the prior art.
  • a surface light usually knows a box-shaped, usually rectangular housing, which forms a Lichtabstrahlö réelle on one side over which surface light is emitted.
  • the surface light differs from other lighting constructions in which light or spotlight is emitted individually via individual light sources.
  • light sources and the light sources associated optics are provided, via which a corresponding influence of the emitted light is made.
  • LED-based light sources are increasingly being used.
  • area lights in particular larger LED boards are used, on which the LEDs are arranged like a matrix.
  • such lights usually have a frame-like cover element. This is arranged on the side of the light exit opening on the lamp housing and serves to surround the actual light exit opening, via which light is emitted, like a frame. It is primarily an element that enhances the appearance of the luminaire.
  • optical elements are arranged within the housing, via which the emitted light is influenced. Up to now, these have generally been separate components, which have been fastened in a corresponding manner in the housing.
  • the present invention is the task of specifying a novel solution for the realization of such a surface light, which is simplified in terms of their structure.
  • the concept according to the invention provides for the two components covering element and optical element to be combined in such a way that a one-piece structural unit is formed. This not only saves material costs, since the production of separate components is no longer necessary, but also the manufacturing process or the assembly of the luminaire is optimized because ultimately fewer individual components must be joined together. Furthermore, the invention provides that the cover element also serves to support a planar light-emitting element, so that a plurality of functions are thus fulfilled by the cover element.
  • a surface-mounted luminaire is provided with a box-shaped luminaire housing which has a light exit opening on one side and a frame-like cover element, wherein the frame-like cover element has a frame section and at least one optical element, the frame section being designed in the region of the light exit opening of the housing to be arranged on this and thereby frame-like to include a light emitting area of the lamp, wherein the frame portion is integrally connected to the at least one extending in the inner region of the lamp housing optical element which is provided for influencing the light emitted from the lamp light, and wherein the optical element is reflector walls, which are - preferably inclined - extend from the frame portion to a light source located in the lamp housing.
  • the lamp has a flat light-emitting element, wherein the frame portion of the cover element has inwardly projecting bearing surfaces for supporting the light-emitting element.
  • the light-emitting element arranged in the region of the light exit opening of the housing may, for example, be a prismatic pane or acting around a diffuser disk, wherein, as already mentioned, the frame portion has inwardly projecting bearing surfaces and is used for supporting the flat light-emitting element.
  • the structure of the lamp is further optimized, since the holder of the transparent light-emitting element requires no additional measures.
  • a so-called area light 100 is shown in which LEDs are used as light sources.
  • the luminaire 100 has a box-shaped luminaire housing 101, on the bottom surface 102 of which the LED light sources are arranged in a planar manner.
  • the four side walls form a rectangular Lichtabstrahlö réelle 103 through which light is emitted.
  • a flat light emitting element is arranged in the region of the light emission opening 103, the structure of which will be described in more detail later.
  • LEDs are used as light sources, which in the present case are arranged like a matrix on a plurality of LED boards 110, which are positioned on the bottom surface 102 of the housing 101.
  • the LED boards 110 are covered by a flat reflector element 111, so that the LEDs are protected against accidental contact.
  • the transparent light emitting element 120 is designed such that it dissolves the individual points of the LED boards 110. That is, the light-emitting element 120 has light-diffusing or light-influencing properties, such that the LEDs are no longer recognizable as individually illuminated points. To even out the light output further contributes that the reflector element 111 within the housing 101 back reflected rays reflected again, so that multiple reflections take place. At the same time reflector walls 20 are provided, which extend from the LED boards 110 to the edge region of the Lichtabstrahlö réelle 103. In Fig. 1 In particular, the reflector wall 20 located on the left side of the housing can be seen.
  • a lamp of the type shown usually also has a so-called frame-like cover, which is arranged at the open end portion of the housing 101.
  • a peripheral frame which encompasses the light emission opening so that the front sides of the housing 101 are not recognizable to a viewer.
  • the frame part 10 is designed such that it rests against the underside of the luminaire housing 101, but in this case additionally extends in the form of an oblique reflector 20 into the luminaire interior, in particular as far as the bottom surface 102.
  • this is a integrally formed part whose regions which form the reflector surfaces, if necessary, additionally coated with reflective materials.
  • the attachment of the cover 10 of the invention to the lamp housing 101 is preferably carried out in that in the lower portion of the reflector wall portion, a detent opening is provided, in which a in FIG. 2 recognizable mounting spring 30 engages.
  • This fixing spring 30 is first attached, for example, by means of a screw on the housing side wall and protrudes easily into the inner region of the lamp housing 101 inside. Then, the cover 10 is inserted with the reflector walls 20 from the bottom into the open luminaire housing 101, the springs 30 automatically engage in the corresponding openings of the reflector walls 20 and snuggle with them, such that the unit luminaire cover reflector in a simple but efficient Way is locked to the housing 101.
  • the reflector wall 20 is designed to be slightly bent, as shown in the illustration of Fig. 2 can be removed. This leaves in the lower area a slightly larger space for the arrangement of the components required for the attachment.
  • the reflector walls 20 themselves then extend obliquely upward as far as possible into the edge region of the LED boards 110.
  • the frame portion of the cover 10 is designed such that inwardly projecting bearing surfaces for the transparent planar Lichtabstrahlelement 120 are formed.
  • the light-emitting element is generally not a single planar element but a layer arrangement consisting of a plastic disk 121, which may optionally be provided with a prismatic, and a scattering film 122 arranged above it to even out the light output over the entire Area across.
  • the structure of this flat Lichtabstrahlelements 120 could, however, be carried out otherwise depending on the desired Lichtabstrahleigenticianen.
  • the frame section of the cover is designed such that inwardly projecting projections 11 are formed, which extend over the four longitudinal sides of the Lichtabstrahlö réelle 103 away and accordingly can be used to support the Lichtabstrahlelements 120.
  • These bearing areas 11 can be formed in the case of an embodiment of the cover as a sheet metal part in a simple manner such that the corresponding End area as shown again bent with a protruding portion inward.
  • the radiating element 120 is then first placed in the cover or on the support surfaces 11 and then the resultant unit is inserted into the lamp housing 101 and latched by means of the springs 30.
  • the springs 30 may each have on their underside an inwardly projecting projection 31 which comes into contact with the top of the radiating element 120. As a result, this element is securely fixed in the desired position, so that a simple transport of the lamp 100 is made possible without the falling out of the radiating element 120 is to be feared.
  • FIGS. 3 and 4 An alternative - not according to the invention - variant for forming a lamp cover is in the FIGS. 3 and 4 shown.
  • the cover 40 itself is shown, which in turn in a lamp, as shown in FIG. 1 could be used.
  • the cover 40 is therefore in turn initially provided to form a lower frame in the region of the light exit opening of the lamp, but at the same time the cover 40 includes an optical system for influencing the light output.
  • the optics consists of a so-called cell grid 45, that is, a plurality of arranged in a matrix cup-shaped reflector cells 46, which is the direction of the light directed towards the bottom respectively.
  • the reflector cells 46 are as shown in FIG Fig. 4 executed truncated pyramidal and have at its upper, narrower end an opening 47 for light entry and on its underside a Lichtabstrahlö réelle 48.
  • each individual cell 45 is assigned to a single light source.
  • the element 40 fulfills both functions, namely on the one hand to provide a frame-shaped cover and on the other hand to form an optical system for influencing the light output.
  • a frame-like portion 41 can be seen over which diffused light is emitted.
  • the central region can also be designed as a planar region 42 without reflector cells, in which case light is radiated over this region 42 in a planar manner, that is to say, for example, diffusely or by prismatic optics. Even in this case, however, the structure of a corresponding lamp is simplified, since so far in turn cover and cell grid had to be mounted separately in the luminaire housing.
  • Fig. 5 shows finally a third cover 50, which is also not the subject of the claims and in large parts of the cover of FIGS. 3 and 4 similar.
  • the optics which is formed by the cover 50, from a cell grid system 55, which now consists of two parallel reflector rows 46, however.
  • the reflectors are analogous to the embodiment of FIGS. 3 and 4 formed like a truncated pyramid.
  • the shape of the reflector cells could also be chosen otherwise, the same also applies to the second embodiment.
  • rotationally shaped pot reflectors or the like are known.
  • the peripheral frame 51 of the cover 50 in turn serves the corresponding cover of the end portion of the box-shaped lamp housing.
  • Diffuse light-emitting longitudinal surfaces 52 are formed on both sides of the grid system 55. Also applies to this embodiment, that a single component several tasks of a surface lamp can be realized.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)

Claims (3)

  1. Luminaire plat (100) avec un boîtier de luminaire (102) en forme de caisson, qui comprend, sur un côté, une ouverture de sortie de lumière (103) ainsi qu'un élément de recouvrement (10) de type châssis, l'élément de recouvrement (10) de type châssis comprenant une portion de châssis (11) et au moins un élément optique (20), la portion de châssis (11) étant conçue pour être disposée au niveau de l'ouverture de sortie de lumière (103) du boîtier (102) sur celui-ci et pour comprendre, à la manière d'un châssis, une partie d'émission de lumière du luminaire (100),
    la portion de châssis (11) étant reliée d'une seule pièce avec l'au moins un élément optique (20) s'étendant à l'intérieur du boîtier de luminaire (101), qui est conçu pour le contrôle de la lumière émise par le luminaire (100),
    et l'élément optique (20) étant constituée de parois réfléchissantes qui s'étendent, de préférence de manière inclinée, de la portion de châssis (11) vers une source de lumière (110) se trouvant dans le boîtier de luminaire (101),
    caractérisé en ce que
    le luminaire comprend en outre un élément d'émission de lumière plat (120), la portion de châssis comprenant des surfaces d'appui (11) dépassant vers l'intérieur pour le logement de l'élément d'émission de lumière (120).
  2. Luminaire plat (100) selon la revendication 1,
    caractérisé en ce que
    les parois réfléchissantes comprennent des moyens pour la fixation de l'élément de recouvrement (10) au boîtier de luminaire (101).
  3. Luminaire plat (100) selon la revendication 2,
    caractérisé en ce que
    les moyens de fixation sont des évidements pour une liaison avec des ressorts d'encliquetage (30) fixés au boîtier du luminaire (101).
EP14719279.3A 2013-04-25 2014-04-17 Élément de recouvrement pour luminaire surfacique Active EP2994693B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013101791.4U DE202013101791U1 (de) 2013-04-25 2013-04-25 Abdeckungselement für Flächenleuchte
PCT/EP2014/057927 WO2014173819A1 (fr) 2013-04-25 2014-04-17 Élément de recouvrement pour luminaire surfacique

Publications (2)

Publication Number Publication Date
EP2994693A1 EP2994693A1 (fr) 2016-03-16
EP2994693B1 true EP2994693B1 (fr) 2018-12-12

Family

ID=50549309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14719279.3A Active EP2994693B1 (fr) 2013-04-25 2014-04-17 Élément de recouvrement pour luminaire surfacique

Country Status (6)

Country Link
US (1) US9958135B2 (fr)
EP (1) EP2994693B1 (fr)
CN (1) CN105164466A (fr)
AT (1) AT18041U1 (fr)
DE (2) DE202013101791U1 (fr)
WO (1) WO2014173819A1 (fr)

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EP3057082B1 (fr) * 2015-02-15 2019-10-09 Beijing Universal Lanbo Technology Co., Ltd. Affichage à del et affichages à del
DE102016118679A1 (de) * 2016-09-30 2018-04-05 Siteco Beleuchtungstechnik Gmbh Leuchte mit Rastfedersystem zur Befestigung einer Abdeckung
CN112204305A (zh) * 2018-06-08 2021-01-08 昕诺飞控股有限公司 刚性照明单元
DE102021101748B4 (de) 2021-01-27 2022-12-08 Oligo Lichttechnik Gmbh Oberflächenkontroll- oder Farbabmusterungsleuchte

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Also Published As

Publication number Publication date
CN105164466A (zh) 2015-12-16
AT18041U1 (de) 2023-11-15
US9958135B2 (en) 2018-05-01
US20160069532A1 (en) 2016-03-10
EP2994693A1 (fr) 2016-03-16
WO2014173819A1 (fr) 2014-10-30
DE202014011256U1 (de) 2018-11-07
DE202013101791U1 (de) 2014-07-28

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