EP2175188B1 - Lamp - Google Patents

Description

The invention relates to a luminaire according to the preamble of claim 1.

Such a lamp is from the U.S. Patent No. 3,159 . 352 known and consists of a device with a device carrier for a lamp and components for operating the lamp, a cover which forms a hollow body with front wall, rear wall and side walls. The device with equipment carrier, lamps and components is installed by the rear wall, whereby the device projects at least partially into the interior of the hollow body. Here, the device carrier (2) forms part of the rear wall (6) of the cover (3) and has receiving means (7) for receiving photometric elements (8). Front side, the prior art light is closed by end parts.

The object of the invention is to develop a luminaire of the type mentioned so that the cover can be releasably connected to the equipment rack.

The object is achieved with a luminaire having the features of claim 1. Advantageous developments of the luminaire are described in the subclaims.

In a first preferred embodiment of the luminaire according to the invention, the equipment carrier and the lighting elements form the rear wall of the cover and close the hollow body. The light is thus at least against the penetration of solid foreign bodies and Protected insects and can also be performed dust-tight if necessary. The luminaire can thus be designed so that the requirements can be met as required by the standardized protection classes IP40, IP50 or IP60. Such a lamp is preferably designed as a surface or pendant lamp.

The lighting elements may be made of plastic or metal strips or the like. Plastic strips are preferably transparent, in particular opaline, executed. Plastic strips can also be mirrored or painted. and metal strips can be made both translucent and opaque. In the former case, the metal strips are preferably perforated in the second case, mirrored or painted white.

The device carrier can be designed as an extruded profile, preferably made of aluminum, and covered with a sheet metal cover.

The cover can be extruded from preferably clear plastic. In this case, microprisms can be incorporated into the walls of the cover. Within the cover perforated reflectors can be arranged on both sides along the side walls. Instead of incorporating microprisms, films or plates with microprisms or with other photometrically effective structures, such as printing, can be introduced into the cover and arranged along the walls as required. The plastic profile of the cover is preferably closed with end parts. At these end parts is in a preferred Embodiment attached a link element which cooperates with the front side mounted on the device carrier closure elements. This makes it possible to mount the cover on the equipment rack without tools. The closure element is, for example, a U-shaped spring clip. For aesthetic reasons, the front part can be vapor-deposited with a reflective metal layer and optionally varnished.

Preferably, the equipment carrier has a receiving space for operating devices for operating the lighting means, wherein the sockets for the lighting means are mounted outside the receiving space. The preferred bulbs are a single commercially available fluorescent lamp. Paired use of fluorescent lamps is also conceivable. Furthermore, it is possible, in addition to the primary illumination formed from fluorescent lamps, to accommodate light-emitting diodes (LED) as secondary illumination on or in the equipment carrier. For this purpose, arranged on strip-like boards, white or colored light emitting LEDs are mounted along the outside of the device carrier. By means of electrical feedthroughs, these LEDs can be connected to operating devices arranged in the interior of the device carrier, ie LED drivers.

The lamp according to the invention is characterized by the many possibilities with which the lighting properties and the characteristics of the lamp can be changed. The introduction of lighting elements such as reflectors, sheets or foils is possible at a very late stage in the manufacturing process and thus enables the luminaire inexpensive to produce. Similar considerations can be made to the equipment carrier, which can be used with a variety of bulbs and also with lighting elements, such as head reflectors, plastic or metal strips can be fitted.

Further advantageous embodiments of the inventions can be taken from the embodiments.

• Figur 1 eine perspektivische Ansicht eines Ausführungsbeispiels einer erfindungsgemäßen Leuchte,
• Figur 2 einen Schnitt durch eine erfindungsgemäße Leuchte gemäße Figur 1,
• Figur 3 eine Explosionsdarstellung einer erfindungsgemäßen Leuchte gemäß Figur 1,
• Figur 4 eine erste Detailansicht der Explosionsdarstellung gemäß Figur 3,
• Figur 5 eine zweite Detailansicht der Explosionsdarstellung gemäß Figur 3,
• Figur 6 eine Detailansicht auf eine Abdeckung mit Stirnteilen und Reflektoren eines zweiten Ausführungsbeispiels der Erfindung,
• Fig. 7 eine perspektivische Ansicht auf ein Kulissenelement mit Abdeckung und Reflektoren des zweiten Ausführungsbeispiels gemäß Fig. 6.

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

• FIG. 1 a perspective view of an embodiment of a lamp according to the invention,
• FIG. 2 a section through a lamp according to the invention FIG. 1 .
• FIG. 3 an exploded view of a lamp according to the invention FIG. 1 .
• FIG. 4 a first detailed view of the exploded view according to FIG. 3 .
• FIG. 5 a second detail view of the exploded view according to FIG. 3 .
• FIG. 6 a detailed view of a cover with front parts and reflectors of a second embodiment of the invention,
• Fig. 7 a perspective view of a link element with cover and reflectors of the second embodiment according to Fig. 6 ,

Fig. 8 a plan view of link element and end portion of the second embodiment in the direction AA of FIG. 6 ,

In the following figures, the same reference numerals are used for identical and comparable parts. The illustrated lamp according to the invention is mirror-symmetrical with respect to the dashed line AA of FIG. 2 ,

In FIG. 1 is a perspective view of a lamp 1 according to the invention shown. The lamp 1 consists of a cover 3 with side walls 4, rear wall 6 and front wall 5, which is closed by end portions 13 frontally and from a device carrier 2, which is covered with a metal cover 9. In both end regions of the equipment carrier 2 cable clamps 17 are shown, which are each capable of receiving a not shown wire rope and to fix it in a clamping and releasable manner. Also in the end regions of the device carrier 2 cover plates 20 are arranged, which prevent inadvertently on the underlying sockets 10 and their electrical leads can be used.

In FIG. 2 the structure of a lamp 1 can be seen. The device carrier 2 is seen in cross-section substantially U-shaped. Thus, the device carrier 2 forms a receiving space for a ballast 11. Also are an electrical terminal 22 disposed within this receiving space, which can of course also be used for other operating devices such as light-emitting diode drivers or control units for building management systems. As in FIG. 2 it can be seen, the device carrier 2 does not follow a precise U-shape, but it has two with respect to the base 25 of the device carrier 2 inclined, ie in the direction of the base 25 converging sections of the legs 26. These sections of the legs 26 of the device carrier 2 go into receiving elements 7 for the lighting elements 8 via. These receiving elements 7 are channel-shaped, wherein the opening of the channel takes place to the side. The upper channel wall 27 is made flat, the lower channel wall 28, however, has a securing web 29 which engages in a groove of a lighting element 8 and thus secures them against falling out.

In addition, cover the two-sided lighting elements 8, the rear opening of the cover 3. In addition, the lighting elements 8 are on the end edges 30 of the cover 3.
The device carrier 2 and the two lighting elements 8 thus close the rear wall 6 of the cover 3. The area of the device carrier 2, which is located inside the cover 3 or which are arranged below the lighting elements 8, is covered with a head reflector 18. This reflector 18 can be designed as a separate part, for example made of aluminum, or the device carrier 2 itself can be made reflective in this area.

Outside the receiving space, in particular centrally below the device carrier 2, ie in the region of the base surface 25, a respective holder 10 for a fluorescent lamp 21 is arranged frontally. This fluorescent lamp 21 forms the primary illumination.

In the region of the head reflector 18, in particular along the legs 26, white or colored light-emitting diodes (not shown) can be attached to the outside of the device carrier 2, which can be used as secondary illumination for particular light accents or for special lighting tasks. It is conceivable, for example, that the light-emitting diodes enable a reduced basic illumination compared to the illumination with the fluorescent lamp 21 used as primary illumination, which is sufficient for simple activities or at least for orientation in a room. It is also conceivable that these LEDs can serve as escape route lighting in case of danger.

In the two side walls 4 of the cover 2, a micro-prism profile is incorporated. Inside the cover 3, a partially transparent reflector 16 is arranged on both sides along the entire side wall 2. This reflector 16 engages behind the terminating edge 30 and is held in position by a retaining lug 31 of a link element 14 secured to the front part 13 by means of screws 19. Also inside the cover, a plate 12 is arranged, the lighting properties are designed so that a glare is guaranteed in accordance with relevant standards. In place of this additional plate 12 is also possible to incorporate the anti-glare properties in the cover 3 itself.

In a preferred embodiment, the cover 2 are extruded from clear plastic, the lighting elements 8 made of transparent opal or diffusely translucent plastic, the reflectors 16 made of perforated aluminum sheet and the plate 12 made of Plexiglas, wherein the plate 12 has a prismatic structure on its underside , Above this plate 12 is additionally a film 32 made of diffuse translucent material.

In the Figures 3 . 4 and 5 is the light 1 according to FIGS. 1 and 2 reproduced in exploded views. Here, a designed as a U-shaped spring element closure element 15 is visible, which is formed from a cross bar 23 and two legs. Such a closure element 15 is arranged at both ends of the device carrier 2 and cooperates with in each case a link element 14, which is screwed to the front part 13 by means of screws 19 together. When installing the device carrier 2 in the cover 3, the two legs of the U-shaped closure element 15 are compressed by sliding along the slide guide until cover 3 and equipment carrier 2 are brought into their assembly position. Then jump the two legs of the U-shaped closure element 15, which have a serrated shape at its free end, behind undercuts in the link element 14 and thus hold the cover 2 in this position. In order to be able to safely receive the closure element 15 produced from a spring plate, ie, enough space for the spring element to offer, the front part 13 is executed with a claw 24.

In FIG. 6 is a plan view of a cover 3 with end portions 13, link elements 14 and reflectors 16 of a second embodiment of the invention shown. The second embodiment differs from the first embodiment essentially by the different design of the link elements. It is characterized inter alia by the fact that both the link element and the end parts 13 are made of plastic. Reflectors 16 are arranged along the side wall 4 as in the first embodiment.

As in FIG. 7 can be seen in the gate element 14 slots provided by the tabs 33 which are integrally formed on the reflectors 16, are performed. The reflectors 16 are arranged along the side walls 4 in the cover 3, wherein the reflectors can be inserted in particular from the front side. By bending the tabs 33, the plugged onto the tabs 33 gate element 14 and the reflectors 16 are positively connected to each other. The cover 3, reflectors 16 and the link elements 14 thus form a structural unit on the front side end portions 13 can be snapped.

This work in FIG. 8 shown centering pins 39 and snap elements 38 with Zentrierausnehmungen 34, vertical recesses 36 and horizontal recesses 37 together. The link element 14 also has recesses 35 for receiving previously known from coil springs formed (not shown) suspension brackets for the aforementioned unit.

The front part 13 and the link element 14 are preferably made as separate components, because it is thereby possible to supply the front part 13 of a special surface treatment, so it steam for example, with a high-quality metal layer. Such a surface treatment is not necessary for the gate element 14, because this element can not be seen from the outside. But front part 13 and link element 14 can also be formed as a single piece, which takes on both the function of the front part and the link element. This is particularly possible if the surface of the front part is not to be coated.

LIST OF REFERENCE NUMBERS

1

lamp

2

equipment rack

3

cover

4

Side wall

5

front wall

6

rear wall

7

receiving element

8th

photometric element

9

metal cover

10

version

11

ballast

12

plate

13

end caps

14

link element

15

closure element

16

reflector

17th

Seilklemme

18

upper reflector

19

screw

20

Cover plate

21

Fluorescent Lamp

22

clamp

23

locking latch

24

Freinehmung

25

Floor space

26

leg

27

Upper channel wall

28

Lower channel wall

29

securing web

30

terminal edge

31

retaining nose

32

foil

33

tabs

34

Recesses for centering

35

Recesses for suspension

36

Vertical recess

37

Horizontal recess

38

snap element

39

Pins

Claims (19)

1. Luminaire (1) having

   - a device with an apparatus support (2) for lighting means and for components (10, 11) for operating the lighting means,

   - a cover (3), forming a hollow body with front wall (5), rear wall (6) as well as side walls (4), wherein the device built in by the rear wall (6) extends at least partially into the interior of the hollow body, wherein the apparatus support (2) forms a part of the rear wall (6) of the cover (3) and has receiving means (7) for receiving lighting technology elements (8),

   characterized in that the cover (3) is closed with link elements (14) on the face side and that closing elements (15) are attached in the end areas of the apparatus supports (2), with the closing elements (15) interacting with a link element (14), respectively, in order to keep the cover (3) on the apparatus support (2).
2. Luminaire according to claim 1, characterized in that the link elements (14) are structurally connected with a face part (13), respectively, or that the link element (14) and face part (13) are integrally formed.
3. Luminaire according to one of claims 1 or 2, characterized in that the link elements (14) are form-locked connected with reflectors (16), wherein the link element (14) has slots through which flaps (33) of the reflectors (13) engage, wherein the flaps (33) are bent for securing the connection.
4. Luminaire according to one of the preceding claims, characterized in that the closing element (15) is a u-shaped spring element.
5. Luminaire according to one of claims 1 to 4, characterized in that the apparatus support (2) and the light technology elements (8) form the rear wall (6) of the cover (3) and close the hollow body.
6. Luminaire according to one of claims 1 to 4, characterized in that the light technology elements (8) are strips made of plastic material.
7. Luminaire according to one of claims 1 to 4, characterized in that the light technology elements (8) are transparent, in particular opal-colored.
8. Luminaire according to one of claims 1 to 4, characterized in that the light technology elements (8) are strips made of metal, in particular aluminum.
9. Luminaire according to claim 8, characterized in that the light technology elements (8) are light-permeable, in particular perforated.
10. Luminaire according to claim 9, characterised in that the light technology elements (8) are light-impermeable, in particular white painted or having a reflective coating.
11. Luminaire according to one of the preceding claims, characterized in that the apparatus support (2) is configured as extrusion profile.
12. Luminaire according to one of the preceding claims, characterised in that the apparatus support (2) is covered with a sheet metal cover (9).
13. Luminaire according to one of the preceding claims, characterized in that microprisms are incorporated in the walls (4, 5, 6) of the cover (3).
14. Luminaire according to one of the preceding claims, characterized in that perforated reflectors (16) are arranged on both sides along the side walls (4) of the cover (3).
15. Luminaire according to one of the preceding claims, characterized in that films or boards (12), having microprisms or being printed, are arranged on the walls within the cover (3).
16. Luminaire according to one of the preceding claims, characterized in that the cover (3) is configured as crystal clear plastic profile.
17. Luminaire according to one of the preceding claims, characterized in that the apparatus support (2) has a receiving space (18) for the operating apparatus (11) for operating the at least one lighting means and that sockets (10) or other retaining elements for the lighting means are attached outside the receiving space (18).
18. Luminaire according to one of the preceding claims, characterized in that the apparatus support (2) supports a primary lighting realized with at least one fluorescent lamp (21) and a secondary lighting realized with light-emitting diodes.
19. Luminaire according to claim 18, characterized in that the fluorescent lamp (21) is positioned centrally below the apparatus support and that light-emitting diodes are arranged laterally next to the fluorescent lamp (21).

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