light

Abstract

Luminaire (10) with luminaire elements (19) arranged in a luminaire housing, wherein the luminaire housing is at least partially formed by a strip-shaped profile element (11) arranged flush with or in a building structure (13, 14), in particular a floor, a wall or a ceiling, for providing a shadow gap (12), which is designed to receive the luminaire elements (19) for the indirect illumination of at least one building structure surface (21) and / or a space (22) bounded by at least one building structure surface (21), wherein a part (17) of the profile element (11) partially covers the shadow gap (12) and thus forms a receiving space (18) for the luminaire elements (19), wherein the profile element (11) serves as a support or receiving element for the building structure (13), wherein the profile element (11) has a substantially double-T-shaped cross-section,wherein the common U-base (24) separates a receiving space (27) serving to receive the building body (13) from the receiving space (18) for the lighting elements (19), and wherein the part (17) of the profile element (11) limiting the receiving space (18) for the lighting elements (19) is designed as a component (34) detachable from a profile element base body (33).

Description

[0001] The invention relates to a luminaire with a building-integrated luminaire housing.

[0002] It is known from the prior art to provide indirect lighting to building structures, such as ceilings or walls of interior spaces, by attaching a light fixture housing in the form of a box to the structure. Such a "box solution" inevitably leads to an increase in ceiling or wall height, thereby reducing the area to be illuminated. If the light fixture is mounted on a ceiling, the room height is reduced, and installing additional conventional ceiling lights becomes more difficult. If the light fixture is mounted on a wall, placing furniture against that wall is no longer easily possible.

[0003] A profile element that can be attached to a building structure and has a receiving space in which a lamp is installed is described in US 2006 / 0117685 A1.

[0004] One object of the present invention is to provide a lighting system that avoids the disadvantages described above and enables universally applicable, variable, structurally simple, inexpensive to manufacture and install lighting of building surfaces indoors and outdoors.

[0005] This problem is solved by a luminaire according to claim 1.

[0006] It is a strip-shaped shadow gap profile element designed for flush mounting on or within a building structure. The profile element is designed to accommodate lighting elements, thus serving for the indirect illumination of at least one building surface and / or a space bounded by at least one building surface.

[0007] Such a strip-shaped profile element is used to provide a shadow gap as a building-integrated luminaire housing, wherein the profile element is designed for flush mounting on or in a building structure and serves to accommodate luminaire elements in such a way that indirect lighting of at least one building surface and / or a space bounded by at least one building surface is provided.

[0008] According to the invention, a luminaire with luminaire elements arranged in a luminaire housing is provided, wherein the luminaire housing is at least partially flush with the surface.A profile element is formed in a building structure as a strip-shaped shadow groove profile element, which is designed to receive the lighting elements for the indirect illumination of at least one building structure surface and / or a space bounded by at least one building structure surface, wherein a part of the profile element partially covers the shadow groove and thus forms a receiving space for the lighting elements, wherein the profile element serves as a support or receiving element for the building structure, wherein the profile element has a substantially double-T-shaped cross-section, wherein the common U-base separates a receiving space serving to receive the building structure from the receiving space for the lighting elements, and wherein the part of the profile element bounding the receiving space for the lighting elements is designed as a component detachable from a profile element base body.

[0009] A key idea of ​​the invention is to provide a luminaire flush-mounted on or within the building structure for the indirect illumination of at least one building surface or a space bounded by at least one building surface. A building structure is defined as a space that at least partially bounds a room, preferably as part of a building structure. A building element is understood to be a permanently installed component of a structure or a part of a building's exterior facade, for example, a floor, a wall, a ceiling, a steel beam, a tile element, a mirror, or the like. In other words, a building element is a component whose surface, at least partially defining the space, is essentially closed. A flush-mounted arrangement, as understood by those skilled in the art, is one in which the light fixture is integrated into the building element in such a way that it is essentially flush with the surrounding surface.

[0010] Instead of a luminaire housing, a strip-shaped profile element is used according to the invention, which serves to provide a shadow gap. The result is an illuminated shadow gap, which achieves the aforementioned indirect lighting of the building surface or the room.

[0011] The lighting elements are arranged in a receiving space formed by the profile element in such a way that the shadow gap is illuminated, thus indirectly illuminating at least one building surface and / or a space bounded by at least one building surface. It is particularly advantageous if the indirect lighting is achieved using LED lighting elements. The use of LED elements provides a particularly homogeneous light. Furthermore, the use of LED elements is especially energy-efficient and therefore environmentally friendly.

[0012] The illuminated shadow groove, which serves as the light source, is concealed within the building structure. In other words, the shadow groove is flush with the building surface that defines the space. This flush arrangement eliminates the need for an additional housing, such as a box or cover. The profile element, acting as the support for the light elements, simultaneously forms the "housing" of the light fixture, possibly in conjunction with parts of the building structure. This results in a significantly smaller footprint compared to conventional lighting systems. The simple design also keeps manufacturing and installation costs low.

[0013] The illuminated shadow gap is universally applicable. For example, it is particularly suitable for use as lighting in corridors in hospitals and public buildings. It is also very well suited for the indirect lighting of living or working spaces. Due to the universality of the profile element according to the invention, it can be used for virtually any conceivable application. Therefore, it is not necessary to keep different profile elements on hand for wall, ceiling, and floor shadow gaps.

[0014] The lighting system according to the invention can not only be used universally, but it can also be retrofitted, so that, for example, changes in room usage can be addressed flexibly.

[0015] Advantageous embodiments of the invention are explained in more detail below with reference to an exemplary embodiment and the drawings. These show: Fig. 1 a schematic representation of a “box solution” known from the prior art, Fig. 2 the construction according to the invention using the example of a shadow gap between a wall element and a ceiling element in a sectional view, Fig. 3 a single cross-sectional view of the profile element according to the invention in a one-piece design, Fig. 4 A single cross-sectional view of the profile element according to the invention in a two-part design.

[0016] All figures show the invention schematically and with its essential components. Identical reference numerals correspond to elements with the same or comparable function.

[0017] A building structure typically consists of concrete, masonry, wood, or another building material forming a continuous, flat surface, such as gypsum board. The present invention is particularly advantageous in lightweight construction, for example, in conjunction with the use of gypsum board. However, its use in solid building structures is also readily possible.

[0018] In Fig. Figure 1 shows the "box solution" known from the prior art, in which a luminaire housing 1 is attached to a ceiling 2. Lighting elements 3 are arranged in recesses 4 on two sides of the luminaire housing 1, enabling indirect lighting of the ceiling 2 or the room 5. A particular disadvantage here is the reduced ceiling height due to the box-shaped design of the luminaire housing 1.

[0019] In Fig. Figure 2 shows a cross-sectional view of the lighting system 10 according to the invention. A profile element 11 according to the invention serves to form a shadow gap 12 between a first building element 13 and a second building element 14, here by way of example between a ceiling element and a wall. For fastening the ceiling element 13, made of, for example, plasterboard, to the wall 14, a substructure 15, e.g., a wooden batten, is provided, to which the strip-shaped profile element 11 is attached by means of fastening elements 16.

[0020] The strip-shaped profile element 11 serves, firstly, as a support or receiving element for the ceiling element 13 and, secondly, to provide the shadow gap 12 between the ceiling element 13 on the one hand and the wall 14 on the other. The profile element 11 is designed such that a part 17 of the profile element 11 partially covers the shadow gap 12 formed by the distance between the two building elements 13, 14, thus forming a receiving space 18 for lighting elements 19. Therefore, the profile element 11 is suitable for creating an illuminated shadow gap 12 and thus for the indirect illumination of at least one building element surface 21, here a partial surface of the wall 14, or for the indirect illumination of the space 22 bounded by the wall.

[0021] The material used for manufacturing the profile element 11 can, in principle, be freely chosen. Both metallic and plastic materials have proven suitable, with the profile 11 preferably being extruded. Profile elements 11 made of sheet metal with a thickness of 0.6 millimeters and a profile length of 2.5 meters have proven to be particularly versatile.

[0022] Fig. Figure 3 shows a one-piece profile element 11, which is preferably used when a wall 14 or a ceiling 13 is to be provided with an illuminated shadow groove 12. In such shadow grooves 12, the open groove width 23 is generally at least 10 millimeters, so that even subsequently a simple arrangement of the lighting elements 19 in the receiving space 18 of the profile element 11 is possible, as is the subsequent replacement of defective lighting elements 19. The in Fig. The two-part construction shown in Figure 4, which is described in more detail below, is preferably used when the open groove width 23 is less than 10 millimeters, as is the case in particular with shadow grooves 12 in the floor or tile area.

[0023] In the in the Fig. 2, Fig. 3 and Fig. In the embodiments shown in Figure 4, the profile element 11 has a substantially double-T-shaped cross-section, which is composed of two U-shaped areas. The common U-base 24 separates a receiving space 27 for the first building element, the ceiling element 13, which is bounded by a longer upper U-flank 25 and a shorter lower U-flank 26, from an opposite receiving space 18 for a number of lighting elements 19, which is also bounded by a longer upper U-flank 28 and a shorter lower U-flank 29 and is open towards the second building element 14.

[0024] The gypsum board ceiling element 13, with a thickness 23 of 12.5 millimeters, is inserted in its assembled state into the building component receiving space 27 provided by the profile element 11 and rests on the lower U-flank 26 of the profile element 11 with a bearing depth 31 of approximately 5 to 10 millimeters. Following the installation of the ceiling element 13, the lower U-flanks 26, 29 are filled flush with the underside 32 of the ceiling element 13 and then sanded, resulting in a flush arrangement of the profile element 11 on the ceiling element 13.

[0025] Since the shadow gap 12 between the two building elements 13, 14 is partially covered by a part 17 of the profile element 11, here the lower U-flank 29 of the lighting element receiving space 18, the remaining shadow gap width 23 results from the difference in length between the upper U-flank 28 and the lower U-flank 29 of the lighting element receiving space 18. The width 23 of the illuminated shadow gap 12, and thus the width of the "light strip" provided by the lighting system 10, which is flush with the underside 32 of the ceiling element 13, as well as the intensity of the indirect lighting, can therefore be variably selected by a corresponding design of the profile element 11.

[0026] The in Fig. The single-piece profile element 11 shown in Figure 3 can also be made from several interconnected components, for example, from two U-profiles connected at the U-base 24. The same applies to the individual parts of the [unclear text]. Fig. 4 illustrated profile element 11.

[0027] This profile element 11, of two-part construction, differs from the one in Fig. 3 profile element 11 shown in the illustration, in that the part 17 of the profile element 11, which limits the light element receiving space 18 and at least partially covers the shadow groove 12, here also the shorter lower U-flank 29, is designed as a component 34 that can be detached from a profile element base body 33.

[0028] This separately handleable component 34 has the form of an L-shaped profile strip in cross-section, with one leg of the L 35 in the assembled state (see Fig. 4a) serves as the short U-flank 29 of the lighting element receiving space 18, while the other L-leg 36, arranged at a right angle to it, lies in a receiving groove 37 in the assembled state, which is provided by the base body 33 of the profile element 11. The receiving groove 37 is formed on the one hand by the web 38, which serves as the U-base 24 of the building element receiving space 27, and on the other hand by a second web 39 arranged parallel to it, which serves as the U-base 24 of the opposite lighting element receiving space 18.

[0029] The detachable component 34 is secured in the receiving groove 37 when assembled. This is preferably achieved either with an adhesive sealant, for example a silicone-based one, which ensures a moisture-tight connection, as may be required in damp rooms, or by using fastening elements (not shown) on the component 34 and / or in the receiving groove 37 to form a snap-fit ​​or latching connection. Since no significant forces act on the component 34 when assembled, no special requirements are placed on the type of fastening in this respect, so that even very inexpensive solutions can be used.

[0030] At the in Fig. In the two-part design shown in Figure 4, the width 23 of the shadow groove 12 and thus the lighting characteristics can be changed (even retrospectively) by replacing component 34.

[0031] Alternatively to the ones in the Fig. 2, Fig. 3 and Fig. The present invention can also be realized by a profile element 11 in which the area opposite the lighting element receiving space 18 is not designed as a building component receiving space 27, but merely as a building component support. In this case, the profile element 11 lacks the upper, longer U-flank 25 of the building component receiving space 27. The building component 13 then rests only on the lower, shorter U-flank 26.

[0032] The use of lighting elements 19 in the lighting element receptacle 18 of the profile element 11 is variable in many respects. Not only can the type of lighting elements 19 used be varied, with LED elements being preferred due to their particularly small size, but the type of indirect lighting can also be changed by positioning the lighting elements 19 differently within the receptacle 18. An example is shown in Fig. 3 an arrangement of a luminaire element 19 on the inside of the lower U-flank 29 and in Fig. 4 the arrangement of a light element 19 on the U-base 24 is shown.

[0033] In addition to the positioning of the light elements 19, their mounting can also vary. For example, if the profile element 11 is made of a metallic material, it has proven particularly advantageous to use individual LEDs mounted on a strip-shaped magnetic carrier (not shown in detail) as light elements 19. Using such a magnetic carrier not only makes it particularly easy to mount the light elements 19 (even retroactively), since the magnetic carrier simply needs to be inserted into the receiving space 18 of the profile element 11, but also allows the light elements 19 to be detachably attached to the profile element 11, making them particularly easy to remove or replace.An additional advantage is the direct dissipation of the heat generated by the lighting elements 19 via the magnetic carrier and the profile element 11, which effectively prevents heat build-up. In this variant, the LEDs are preferably glued to the magnetic carrier. However, they can also be attached to the carrier in another way. The magnetic carrier variant is particularly advantageous for profile elements 11 with a comparatively wide shadow groove 12, as found in [reference missing]. Fig. 3 is shown.

[0034] For profile elements 11 with a comparatively narrow shadow gap 12, especially for profile elements 11 designed in two parts, as in Fig. Instead of the magnetic carrier shown in Figure 4, LED strips (not shown in detail) are preferably used as the lighting elements 19. These consist of LEDs arranged at regular intervals on a flexible carrier material. Preferably, a double-sided adhesive tape is provided on the back of the LED carrier, so that the LED strip, after being cut to the required length, can be glued into the lighting element receiving space 18 of the profile element 11 in a particularly simple manner. This variant is less expensive than the magnetic carrier variant described above. A further advantage is that in this case, plastic can also be used as the material for manufacturing the profile elements 11.

[0035] For the installation of corresponding electrical connection cables, bores 41 are provided at regular intervals in the profile element 11. These are advantageously located near the later position of the lighting elements 19. In the Fig. 2, Fig. 3 and Fig. In the four illustrated examples, the bores 41 in the upper U-flank 28 of the light element receiving chamber 18 are located in the immediate vicinity of the U-base 24, so that electrical connection cables (not shown) can be easily inserted from above into the light element receiving chamber 18 and connected there to the light elements 19. The light elements 19 are preferably operated by means of a remote control (not shown), either wired or wireless.

[0036] The invention is not limited to providing a shadow gap 12 between a first building element 13 and a second building element 14. According to the basic concept of the invention, the shadow gap 12 can also be formed within a building element or between sub-elements of a building element, for example, at a point on the ceiling 13 spaced apart from a wall 14. Accordingly, in a further embodiment of the invention, not shown in the figures, the use of a substructure 15 to connect the first building element 13 with the second building element 14 is not required. Instead, the profile element 11 is arranged in a receiving opening in the first building element 13 spaced apart from the second building element 14, for example, in a receiving groove provided in the first building element 13. In this case, the profile element 11 can be structurally simpler, since it does not need to have a receiving space 27 within the building element.The profile element 11 is in turn flush-mounted in the designated receiving opening and provides the shadow gap 12.

[0037] All features shown in the description, the following claims and the drawing can be essential to the invention, either individually or in any combination. Reference symbol list 1 light housing 2 Ceiling 3 lighting elements 4 Recording room 5 rooms 10 Lighting system 11 Profile element 12 Shadow groove 13 first building structure, ceiling element 14 second building structure, wall 15 Substructure 16 Fastening element 17 Profile element part 18 light element mounting space 19 lighting element, LED element, LED strip 21 building area Room 22 23 groove width 24 U-Grund 25 upper U-flank 26 lower U-flank 27 Building structure recording space 28 upper U-flank 29 lower U-flank 31 mm support depth 32 Underside 33 Profile element base body 34 detachable profile element component 35 L-thigh 36 L-thigh 37 recordings 38 Bridge 39 Bridge 41 bore

Claims

[1] A luminaire (10) having luminous elements (19) arranged in a luminaire housing, wherein the luminaire housing is formed at least partially by a strip-shaped profile element (11) arranged flush with or in a building structure (13, 14), in particular a floor, a wall or a ceiling, for providing a shadow groove (12), which is designed to receive the luminous elements (19) for indirect illumination of at least one building structure surface (21) and / or a space (22) delimited by at least one building structure surface (21), wherein a part (17) of the profile element (11) partially covers the shadow groove (12) and thus forms a receiving space (18) for the luminous elements (19), wherein the profile element (11) serves as a support or receiving element for the building structure (13), wherein the profile element (11) has a substantially double-T-shaped cross-section,wherein the common U-base (24) separates a receiving space (27) serving to receive the structural body (13) from the receiving space (18) for the lighting elements (19), and wherein the part (17) of the profile element (11) delimiting the receiving space (18) for the lighting elements (19) is designed as a component (34) detachable from a profile element base body (33).

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