EP1540245B1 - Luminaire comprising a cover/reflector module - Google Patents

Abstract

The device has a base module consisting of an elongated bearer element (1) with holders at least on its underside for a lamp (3) for direct illumination and an operating device (2) for controlling and operating the lamp and a cover/reflector module (10, 20,30) for attachment to the base module with direct reflection walls for the lamp and side walls (11,21,31) extended upwards for external lateral coverage of the base module. AN Independent claim is also included for the following: (a) a method of operating an light.

Description

The present invention relates to a luminaire for room lighting, the appearance of which can be easily changed.

Luminaires for room lighting are known in a variety of configurations. DE 196 20 209 A1 of the Applicant describes, for example, a luminaire which has a triangular-shaped profiled base body as a carrier element in which the operating devices for operating the lamps are arranged. Below the base body, a first lamp is arranged, which is intended for direct room lighting, i. the light emitted by this lamp strikes substantially directly on the area to be illuminated. To avoid dazzling effects, the lamp is surrounded by a light grid, which has two direct reflector walls and a plurality of transversely extending transverse fins. The grid serves to limit the light emitted by the lamp to a predetermined angular range.

In addition to the lamp for direct lighting, a further lamp is arranged on the upper side of the base support, which illuminates the ceiling to which the lamp is attached, and thus serves an indirect illumination of the room. As a rule, it is possible to separately control the lower lamp for the direct lighting and the upper lamp for the indirect lighting and thus individually adjust the proportion of direct or indirect light.

In this known luminaire can laterally on the base body further, the overall impression of the luminaire determining elements, such as wings or additional indirect reflectors are arranged. Basically, however, the triangular base body or its two side surfaces are visible from the outside, so that regardless of the additional attachment elements caused by the side surfaces aesthetic impression does not change.

From DE 88 01 786.9 U1 a linear luminaire is known, which is intended for use in clean rooms. This has a gas discharge lamp, which is held by a holding part. On the holding part, a support frame is attached, which has two end faces, which engage over the holding part and the lamp holders laterally. On this support frame, a reflector housing is attached, which has a reflector inner walls for directional radiation of the light emitted by the lamp and the other side walls which cover the holding part for the fluorescent lamp and the support frame on the one hand. The outer shape the field lamp is thus determined substantially by the side walls of the reflector housing.

The present invention has for its object to provide the ability to give a luminaire of the type described above in a simple way a new look.

The object is achieved by a luminaire having the features of claim 1. Basically, the luminaire consists of a base module and a so-called laminating / reflector module. The base module has an elongated support element which, at least on its underside, provides sockets for a lamp intended for direct illumination and an operating device, such as a control device. an electronic ballast - to drive and operate the lamp carries. Attached to the base module is the lamination / reflector module, which has direct reflector walls for the lamp, and side walls connected thereto, the side walls being extended upwardly to laterally cover the base module. The attachment of the laminating / reflector module to the carrier element of the base module is effected by arranged on the upper sides of the direct reflector walls locking elements.

According to the present invention, therefore, the aesthetic appearance of the lamp is determined solely by the lateral coverage of the laminating / reflector module, since to the outside neither the carrier element nor the operating device arranged therein are visible to the lamp. A simple attachment of the laminating / reflector module to the luminaire is effected by latching elements which are arranged according to the invention such that, on the one hand, they permit easy assembly and disassembly and, on the other hand, do not influence the light emission.

In the final assembly of the lamp are thus essentially two modules. On the one hand the base module with the carrier element and the operating device and on the other hand, the laminating / reflector module, which determines the aesthetic appearance of the lamp. The complete luminaire is then obtained simply by attaching the laminating / reflector module to the preassembled base module. In this way, it is advantageous that using a standardized base module different aesthetic lighting designs can be achieved in a simple manner by mounting appropriately designed laminating / reflector modules. According to the invention, the laminating / reflector module is simply locked to the carrier element, so that in a simple and fast way an exchange made of laminating / reflector modules and thus the lamp can be given a new look.

Further developments are the subject of the dependent claims.

Thus, the carrier element of the base module preferably has on its upper side further sockets for a further light intended for indirect lighting and a second operating device required for operating this further lamp. In order to achieve as constant as possible lighting properties for the luminaire, the second lamp for indirect lighting then preferably associated with a separate indirect reflector, which is also attached to the support element. The light output of the second lamp is determined exclusively by the indirect reflector, so that regardless of the often given aesthetic aspects of forms of laminating / reflector module actually the function of an indirect reflector is present. As before, however, this indirect reflector is laterally covered by the raised side walls of the laminating / reflector module and not visible.

According to an advantageous embodiment of the invention, the side walls of the laminating / reflector module are integrally connected to the direct reflector walls, whereby a particularly inexpensive to produce but stable embodiment is obtained. Alternatively, however, it is also possible to attach the side walls by jamming to the direct reflector walls. In the case of an integral connection, the direct reflector walls preferably merge integrally into the side walls of the laminating / reflector module on their undersides so that it is double-walled in its lower region. Between the direct reflector walls then cross blades extend, which are fixed with their end faces in each case to the direct reflector walls, preferably locked with them. The advantage of this double-walled embodiment of the laminating / reflector module then consists in that its side walls form a smooth or closed surface, without which the elements for the attachment of the transverse laminations to the direct reflector walls are visible from the outside.

The invention also relates to a method for producing a lamp, wherein in a first step, a prefabricated base module is provided, which consists of an elongate support member, which at least on its underside mountings for a lamp provided for direct lighting and a control gear for driving and operating the lamp carries, and attached to the completion of the lamp on the prefabricated base module a laminating / reflector module which has direct reflector walls for the lamp and sidewalls connected thereto, the sidewalls being extended upwardly to the side cover of the base module. The attachment of the laminating / reflector module takes place here by means of arranged on the upper sides of the direct reflector walls locking elements by providing multiple laminating / reflector modules with different shapes can then be obtained in a simple and inexpensive way lights with a different aesthetic impression.

• Fig. 1 das Prinzip der erfindungsgemäß aus einem standardisierten Basismodul sowie wahlweise daran befestigbaren Kaschier-/ Reflektormodulen bestehenden Leuchte;
• Fig. 2 eine Leuchte mit einem ersten Kaschier-/ Reflektormodul im Schnitt;
• Fig. 3 eine Variante der in Fig. 2 dargestellten Leuchte; und
• Fig. 4 bis 7 weitere Ausführungsformen der Leuchte mit verschiedenen Kaschier-/Reflektormodulen.

The invention will be explained in more detail with reference to the accompanying drawings. Show it:

• Figure 1 shows the principle of the present invention from a standard base module and optionally attachable laminating / reflector modules existing lamp.
• FIG. 2 shows a luminaire with a first laminating / reflector module in section; FIG.
• FIG. 3 shows a variant of the luminaire shown in FIG. 2; FIG. and
• Fig. 4 to 7 further embodiments of the lamp with different laminating / reflector modules.

Fig. 1 shows the principle of the present invention. This consists in that the luminaire consists essentially of a standardized and preassembled base module and a laminating / reflector module to be fastened to the base module. The base module has as an essential element on an elongated support member 1, which initially includes the operating devices for the lamps. These may for example consist of electronic ballasts 2 for controlling the lamps. The light of the lamp is generated in the example shown on the one hand by a arranged on the underside of the support member 1 first lamp 3, which is provided for direct illumination. In order to avoid glare effects caused by the light emitted by this first lamp 3, this is associated with a grid, which is part of the laminator / reflector module described in more detail later.

On the upper side of the carrier element 1, a second lamp 4 can furthermore be arranged, which is provided for indirect illumination. With the help of a second lamp 4 surrounded pot-shaped designed indirect reflector 5, the light of this lamp 4 is blasted to the ceiling of the room to be illuminated. The two lamps 3 and 4 are elongate gas discharge lamps, preferably fluorescent lamps, which are controlled via the electronic ballasts 2 arranged in the carrier element 1. In this case, it is possible to set the brightness of the lamps 3 and 4 individually and thus to vary the ratio of direct to indirect lighting. Instead of a single lamp can also be provided depending on the application area also to arrange on the top and / or bottom of the support member 1 more lamps.

On the support element 1 (not shown) fasteners are arranged by means of which the support element 1 and thus ultimately the entire lamp can be attached to the ceiling of a room. Further, on both sides in the lower region of the support element 1 latching projections 6, which allow easy attachment of the laminating / reflector modules to the support element 1 by means of latching.

The outer shape of the luminaire is determined by a laminating / reflector module, which is fastened to the carrier element 1. In Fig. 1, three differently shaped laminating / reflector modules 10, 20, 30 are shown, which give the lamp in each case a completely different appearance. It is essential that the side walls 11, 21, 31 of the laminating / reflector modules 10, 20, 30 are so high, in the assembled state, they completely cover the carrier element 1 as well as the second lamp 4 arranged on its upper side and the indirect reflector 5 laterally. Accordingly, only the laminating / reflector module 10, 20, 30 is visible from the outside. Since this can be made largely free in its forms, thus luminaires of very different appearance can be obtained in a simple way.

In order to obtain as constant as possible photometric properties despite all, the indirect reflector 5 is already an integral part of the standardized base module and also attached to the carrier element 1. The upwardly directed light output of the second lamp 4 is therefore determined independently of the shape of the laminating / reflector module 10, 20, 30 exclusively by the indirect reflector 5.

2 shows the luminaire according to the invention with the first laminating / reflector module 10 fastened thereto. As can be seen from this sectional view, the laminating / reflector module 10 forms in its lower area 12 surrounding the lower lamp 3 a luminous grid composed of two direct lines Reflector walls 13 and transverse thereto arranged cross blades 15. The transverse lamellae 15 are latched with their end regions in each case with the two direct reflector walls 13.

The laminating / reflector module 10 shown in FIG. 2 is characterized in an advantageous manner by the integral nature of the two side regions. These consist of a single sheet metal part which has been bent to the V-shaped structure shown, so that the direct reflector walls 13 merge integrally into the side heat 11 on their undersides. Between a direct reflector wall 13 and a side wall 11, a cavity 14 is thus formed, in which engage the arranged on the end faces of the cross blades 15 mounting tabs 16. By this double-walled design, the fastening tabs 16 of the transverse blades 15 are not visible from the outside. Instead, the side walls 11 form a closed surface. The side walls are laterally pulled upwards in comparison to the direct reflector walls 13, so that they completely cover both the support element 1 and the indirect reflector 5 with the upper lamp 4 arranged therein laterally.

From the outside, therefore, only the two side walls 11 of the laminating / reflector module 10 are visible. These can now be designed accordingly to give the lamp a desired shape. In the example shown in Fig. 2, the side walls 11 are first drawn arcuately inward and out at the top again. As a result, they form the shape of two cup-shaped reflectors attached to one another on their head sides.

The attachment of the laminating / reflector module 10 to the carrier element 1 takes place with the aid of latching elements 17, which are arranged on the upper sides of the direct reflector walls 13 and interact with the projections 6 on the carrier element 1. The laminating / reflector module 10 can thus be snapped onto the carrier element 1, which also allows a simple change of the laminating / reflector module 10 in order to give the luminaire a new shape.

As shown in Fig. 3, it is also possible to dispense with the upper lamp for the indirect lighting and attach the light instead directly to a ceiling of a room to be illuminated. In this case too, the base module is covered laterally by the laminating / reflector module, so that exclusively the shape of the laminating / reflector module still determines the aesthetic impression of the luminaire. The region originally provided for the indirect reflector above the support element 1 can then be used, for example, as a cable space for the passage of lines.

FIGS. 4 to 6, in which the same elements are provided with the same reference numerals, show further design options for the laminating / reflector module. As can be seen from the illustrations, the different laminating / reflector modules 20, 30, 40 differ only in the design of the side walls 11. The shape of the direct reflector walls 13 for the grid, however, is identical. This ensures that despite the different shapes of the laminating / reflector module and the lighting properties of the lamp for direct lighting remain unchanged. Even in these embodiments, it is possible to dispense with the upper lamp for the indirect lighting, as shown in Fig. 7.

The present invention thus opens up the possibility of giving a luminaire a new look in a simple way. Due to the modular concept with a standardized base module, which contains the operating devices for the lamps and the lamps, and the laminating / reflector module which can be fastened thereto, even the most varied forms can be made available at low cost.

Claims (12)

1. Luminaire, comprising

   a) a base module, of an elongate carrier element (1) which carries at least at its underside fittings for a lamp intended for direct illumination (3) and an operating device (2) for controlling and operating the lamp (3), and

   b) a cover/reflector module (10, 20, 30, 40) attachable to the base module, which has direct reflector walls (13) for the lamp (3) and side walls (11, 21, 31, 41) connected with the reflector walls, wherein the side walls (11, 21, 31, 41) are extended upwardly for laterally external covering of the base module,

   characterized in that
   at the upper side of the direct reflector walls (13) there are arranged latch elements (17) for attaching the cover/reflector module (10, 20, 30, 40) to the carrier element (1) of the base module.
2. Luminaire according to claim 1,
   characterized in that,
   the base module has fittings for a second lamp (4) intended for indirect illumination, which fittins are arranged at the upper side of the carrier element (1).
3. Luminaire according to claim 2,
   characterized in that,
   there is associated with the second lamp (4) an indirect reflector (5) arranged at the upper side of the carrier element (1), which indirect reflector is likewise laterally covered by the cover/reflector module (10, 20, 30, 40).
4. Luminaire according to any preceding claim,
   characterized in that,
   the side walls (11, 21, 31, 41) are integrally connected with the direct reflector walls (13).
5. Luminaire according to claim 4,
   characterized in that,
   the direct reflector walls (13) transition at their undersides in one piece into the side walls (11, 21, 31, 41) of the cover/reflector module (10, 20, 30, 40).
6. Luminaire according to claim 5,
   characterized in that,
   the direct reflector walls (13) are connected with one another by means of transverse lamellas (15) extending transversely to the direct reflector walls.
7. Luminaire according to claim 6,
   characterized in that,
   the transfers lamellas (15) are latched into associated recesses of the direct reflector walls (13).
8. Luminaire according to any preceding claim,
   characterized in that,
   the latch elements (17) cooperate with projections (6) provided on the carrier element (1).
9. Luminaire according to any preceding claim,
   characterized in that,
   there are arranged on the carrier element (1) attachment elements for attaching the luminaire to a ceiling.
10. Method for the production of a luminaire, wherein initially a pre-fabricated base module is made available, which is of an elongate carrier element (1) which carries at least at its underside fittings for a lamp (3) intended for direct illumination and an operating device (2) for control and operation of the lamp (3),
    and wherein, thereafter, for completion of the luminaire, a cover/reflector module (10, 20, 30, 40) is attached to the pre-fabricated base module, which cover/reflector module has direct reflector walls (13) for the lamp (3) and side walls (11, 21, 31, 41) connected with the direct reflector walls, wherein the side walls (11, 21, 31, 41) are upwardly extended for lateral external covering of the base module,
    characterized in that,
    for attaching the cover/reflector module (10, 20, 30, 40) to the carrier element (1) of the base module, the cover/reflector module (10, 20, 30, 40) is latched with the carrier element (1) with the aid of latch elements (17) arranged at the upper sides of the direct reflector walls (13).
11. Method according to claim 10,
    characterized in that,
    the side walls (11, 21, 31, 41) are integrally connected with the direct reflector walls (13).
12. Method according to claim 10 or 11,
    characterized in that,
    various cover/reflector modules (10, 20, 30, 40) are made available, the side walls (11, 21, 31, 41) of which are differently shaped.

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