EP2020562A1 - Wall mountable lighting apparatus - Google Patents

Abstract

The apparatus has a housing (1) which has the shape of a parallelepiped with rectangular top and base walls (2, 3) and square end-face walls (4). Several LED elements (8) are arranged as the light source on the carrier surface (7) in the inner space of the hosing (1) so that a directed light beam is generated between the wall and the lighting surface (6). A regional illumination at the top side and or base side is provided and, starting from the respective light exit opening (5), expands so that each lighting surface (6) is located in the sidelight region of the light beam.

Description

The invention relates to a wall lamp with a housing intended for receiving the electrical components and at least one light-transmitting element attached to the housing.

The object of the invention is to provide a certain for equipping with LED's or compact fluorescent lamps wall lamp, which provides a multiple function in terms of achievable light emission and in particular with respect to different areas to be illuminated in a structurally simple structure.

This object is achieved according to the invention for use as a surface-mounted luminaire essentially in that the housing has the shape of a flat square with rectangular top and bottom walls and preferably square end walls that at least in the top wall or the bottom wall at least one particular centrally located light exit opening and the front of the housing associated with a flat, parallel to the front wall of the housing (1) extending light surface is provided, which consists of opal glass or a light-effective plastic material, and that in the interior of the housing as a light source on at least one support surface a plurality of LED elements are arranged such that a directed light beam is generated between the wall and the luminous surface, on the one hand causes ceiling and / or floor side area lighting and on the other hand extends starting from the respective light exit opening so that each luminous area in the Streiflichtber the light beam is located.

By the front of the housing associated flat, translucent luminous surface is provided between this luminous surface and the wall to which the lamp is attached, a laterally and upwardly open Lichtführungs- and reflection space through which the emerging from the housing focused light beam is passed , wherein the opening angle of the light beam is selected so that the luminous surface and the wall opposite her are located in the grazing light range of the light beam and thus light reflected or scattered on the wall is used in addition to the surface brightening of the luminous surface.

In addition to a desired wall or Fassadenakzentuierung is provided by the Streiflichtbeaufschlagung and the resulting light reflections due to the luminance achieved clearly emerging scattered light area, while the focused light beam, if it is directed upward, causes ceiling lighting and, if he down is directed, for example, leads to the clear visualization of a traffic route. The corresponding design of the respective optimum light beam can be achieved by selecting the focusing optics associated with the LEDs. Likewise, it is easily possible to specify a respectively desired monochromatic light color by selecting the LED's.

For certain applications, it is advantageous to be able to specify the main direction of the light beam generated in a certain angular range, and for this purpose, the support surface for the LED elements is mounted adjustable or pivotable, the focusing optics join the adjustment or pivoting movement.

If a plurality of light exit openings are provided next to one another in the elongate housing, the support surfaces assigned to these different light exit openings are preferably designed to be adjustable independently of one another so that the respective required overall beam can be formed from individual beam bundles.

According to a special embodiment, at least one light exit opening corresponding to a cover wall side light exit opening with associated light source is provided in the bottom wall of the housing. This embodiment variant is particularly suitable for those cases in which a pronounced illumination of the floor area is desired in addition to the soft light output achieved via the luminous area. In this case, the major axes of the upward light beam and the downward light beam may be selected differently.

For the purpose of achieving high quality aesthetics, the width of each luminous area is chosen to be equal to the longitudinal extent of the housing, and the housing or a corresponding housing top wall forms a clearly accentuated boundary of the illuminated, translucent viewing area.

The front luminous surface opposite can also be provided on the wall side fixed to the housing lighting and reflection surface in particular.

According to a preferred embodiment of the invention, the housing comprises a base plate for holding all functional components, a substantially U-shaped profile in cross-section with at least one provided in a free leg light exit opening and an outside lying mounting surface on the bottom part of the U-profile for a luminous surface, and lateral support wall parts.

The respective surface carrying the LED elements with associated optics is fastened to the base plate via a holder which is preferably formed from stamped sheet metal parts, wherein the carrier surfaces for the LEDs with their associated optics are screwed to the holder in an adjustable manner.

In order to create a cuboid sealed to the outside, in which the functional elements are located, the base plate, the profile part and the lateral support wall parts are screwed together with the interposition of a seal which is in particular formed in one piece.

By this multi-part design, it is possible to combine the entire lamp to two main units, namely to a first main unit with all functional components bearing and wall mounting base plate on the one hand, and to a bolted to the base plate on the side cover second main unit, which also carries respective luminous surface. After assembly of the two main units to cover the lamp side covers are attached via suitable snap-in connections.

For use as a recessed luminaire, the stated object is achieved according to the invention essentially in that the housing is designed as a rectangular Einbautopf, in particular with external stop flange, that in the housing extending over the housing width and from a rear wall side area, in particular corner to the corner region diagonally opposite the front housing end or stop flange extending Lichtleitwand provided is that parallel and at a distance from the light guide wall in the housing a particular flat, extending approximately to the opening plane of the housing luminous surface of opal glass or a corresponding plastic material is provided, and provided in the back upper corner portion of the housing, preferably over the width of the housing extending light source is that generates a directed, band-shaped light beam between light guide wall and luminous surface, wherein both the light guide wall and the luminous surface is located in the grazing light region of the outwardly widening light beam.

On the one hand, a light guiding space for the focused light beam emerging from the luminaire and illuminating a luminous area or a corresponding traffic area is created by this refinement, and on the other hand a uniform loading of the light deflecting wall and brightening is achieved by the grazing light utilization achieved the associated luminous area. In this way, glare-free useful light is obtained directly in front of the luminaire in the area close to the luminaire, below the luminaire, and in the frontal area, in an aesthetically pleasing diffuse light. By appropriate design of light guide surface and luminous area also desired color differences can be obtained, the general luminous color can be specified by selecting the corresponding LED's.

Instead of a plurality of LEDs, a fluorescent lamp arrangement, in particular a multi-bar compact fluorescent lamp, can also be used to generate a band-shaped light beam between the light guide wall and the luminous area.

Of particular advantage is an embodiment of the invention in which the individual components of the overall structure are combined into two structural units, which are telescopically and in particular sealingly coupled together.

The one unit is formed by a housing, on the rear wall of a particular metallic mounting plate for holding the light source and in particular also for holding all other electrical or electronic functional components is attached. This mounting plate is designed so that the light source is located in the upper rear corner region of the housing, wherein the mounting plate in particular comprises an upper angled portion which is approximately parallel to the upper boundary wall of the housing, the light source overlaps and extends so far forward that he can also act as a reflector surface.

The unit which can be inserted into the housing comprises all the components which guide and guide the light and is designed as a closed unit having a glass cover on the front side, which has a translucent plate opposite the light source held in the housing, through which the light coming from the light source enters the area between Lichtleitwand and luminous surface enters and these surfaces in particular exposed to stray light.

On the front cover frame belonging to the insertable unit, hook elements are provided which engage in associated housing slots in the inserted state of the unit, and an eccentric or conical closure is provided in the lower area of the cover frame, which allows the cover frame and in cooperation with the housing so that the insertable assembly preferably with the interposition of a peripheral seal fixed to the housing to lock. This connection technique also ensures easy separation of the two units from each other, which may be necessary, for example, for the purpose of replacing the light source.

By this two-part design with mutual sealing of the interiors of both units to each other can be achieved for the housing containing the light source and optimum interior ventilation and an advantageous moisture exchange are ensured via corresponding housing openings.

Further advantageous features and embodiments of the invention are specified in the subclaims.

Fig. 1

eine schematisch dargestellte, perspektivische Schrägansicht einer Ausführungsform einer erfindungsgemäßen Leuchte,

Fig. 2

eine perspektivische Schrägansicht einer weiteren Ausgestal- tung der Erfindung ohne seitliche Abdeckkappen und ohne Sichtflächenabdeckung des Befestigungsbereichs der Leucht- fläche,

Fig. 3

eine Detaildarstellung einer Ausführungsform einer Halterung für die LED-Elemente mit zugehöriger Optik,

Fig. 4

eine Explosionsdarstellung einer bevorzugten Ausführungs- form der Erfindung unter Verwendung der Halterung nach Fig. 3,

Fig. 5

eine schematisch perspektivische Schnittansicht einer Aus- führungsform der Erfindung in Form einer Einbauleuchte,

Fig. 6

eine perspektivische Darstellung einer bevorzugten Ausfüh- rungsform der Erfindung, die aus zwei miteinander kuppelba- ren Baueinheiten besteht, und

Fig. 7

eine Rückseitenansicht der in das Gehäuse einschiebbaren Einheit nach Fig. 6.

Embodiments of the invention are described below with reference to the drawing; in this shows:

Fig. 1

a schematically illustrated perspective oblique view of an embodiment of a lamp according to the invention,

Fig. 2

3 is an oblique perspective view of a further embodiment of the invention without lateral cover caps and without visible surface cover of the mounting area of the luminous area,

Fig. 3

a detailed representation of an embodiment of a holder for the LED elements with associated optics,

Fig. 4

an exploded view of a preferred embodiment of the invention using the holder according to Fig. 3 .

Fig. 5

1 is a schematic perspective sectional view of an embodiment of the invention in the form of a recessed luminaire,

Fig. 6

a perspective view of a preferred embodiment of the invention, which consists of two mutually kuppelba- ren units, and

Fig. 7

a rear view of the insertable into the housing unit after Fig. 6 ,

The Fig. 1 shows a cuboid housing 1 with a rectangular upper cover wall 2, a corresponding bottom wall and preferably approximately square end walls. 4

On the front side, a rectangular light-emitting surface 6 consisting of translucent and, in particular, scattering material is fastened to this housing and has a marking 10, such as a light-emitting diode. a house number, or in which a corresponding license plate can be integrated.

A circular light exit opening 5 is centrally provided in the top wall 2 of the housing 1, below which there is a light source in the form of a plurality of LED elements with associated focusing optics mounted on a support surface. This light source is designed such that emerges from the light exit opening 5, a directed light beam whose opening angle is selected so that the central beam in the Substantially between luminous surface 6 and wall extends, however, both the luminous surface 6 and the luminous surface 6 opposite wall are located in the grazing light region of this beam, whereby the luminous surface 6 is illuminated by diffused light.

Instead of an opal luminous area 6, it is also possible to use a luminous area constructed in multiple layers. Such a layer structure may consist of a plastic plate formed on one side as a prism surface, wherein on the prism side a thin glass cover plate and on the back of a scattering film may be provided.

In order to increase the reflection or scattering effect, which is already provided by the wall opposite the luminous surface, it is possible to provide a wall surface with a surface adapted to the luminous surface 6 and fastened to the housing, this surface preferably being designed to be reflective.

Instead of a single light exit opening at the top or at the bottom of the housing a plurality of juxtaposed light exit openings can be used with appropriate extension of the housing. In this case, the LED surfaces associated carrier surfaces are individually associated with each light exit opening, and they can be adjusted individually in their inclination. In this way, the shape of the overall jet formed can be advantageously influenced.

The perspective oblique view Fig. 2 shows a preferred embodiment of a lamp according to the invention, in this representation, the light surface acted upon by grazing light 6 is provided with a house number representation 10 for exemplary illustration of possible applications of the lamp.

The housing 1 of the luminaire comprises - as will be explained in detail - a base plate 10, which is combined with a U-shaped profile part 21 and lateral support wall parts 32 to a sealed to the outside, the functional elements receiving cuboid.

The lateral support wall parts 32 are connected to the U-profile part 31 and have outwardly angled flange parts 37, via which the support wall parts 32 and thus also the luminous surface 7 supporting U-profile part 31 with the base plate 30 are screwed.

Fig. 3 shows an embodiment of a particular made of sheet metal stampings holder 33 for functional components, in particular for the LED elements 8 with associated optics. This holder 33 is attached to the base plate 30, in particular screwed.

In addition to the inclusion of possibly required electronic components in a housing part and the inclusion of terminals 41 allows this holder 33 on the support surfaces 7, especially with respect to the position and the inclination adjustable attachment of the LED elements 8. For this purpose, the respective support surface 7 on the one hand a plurality of distributed over the surface mounting holes for fixing the LED elements 8 and their support provided and connected to another via an angled region with a bracket 34, via slot openings or curved openings 40, which after loosening the corresponding screws the respectively desired Allow adjustment of the inclinations of the support surfaces 7.

The exploded view after Fig. 4 shows the overall structure of a luminaire Fig. 2 ,

The already explained base plate 30, which is provided with holes for wall mounting, serves to accommodate the basis of Fig. 3 already explained bracket 33 for all functional components. In the region of its upper and lower edges, the base plate 30 is provided with sealing portions 36, which complement together with the approximately U-shaped further sealing portions 36 to the overall seal, which is preferably carried out in one piece.

The U-profile part 31, which is preferably an extrusion, has in its top wall 2 and its bottom wall 3 each have a light exit opening 5 and 9, which are sealed by means of associated translucent covers 35. The outer surface of the bottom wall of the profile part 31 is a mounting surface 29 for the respective luminous surface 6, for which purpose a corresponding groove for receiving nuts is provided in the profile part, which serve for Schraubbefestigung the luminous surface 6. The serving for fastening area of the luminous surface 6 is covered by a visible surface 11.

The U-profile part 31 is screwed to lateral support wall parts 32, with the interposition of the seals 36. The lateral support wall parts 32 have outwardly angled flange 37, over which they are screwed to the base plate 30. A sealing plug 43 is provided for the opening provided in the base plate for a line feed.

By the described design of the structure of the luminaire can be in the way of pre-assembly create two main components, namely a first main unit in the form of all functional units supporting base plate 21 and a second main unit of which the luminous surface. 6 supporting U-profile part 31 is formed with lateral support wall parts 32. The assembly of these two units with the interposition of the seal 36 is carried out by screwing the support wall parts 32 with the base plate 30, which are still completed to complete the assembly lateral cover caps 38 via locking elements 39 to the support wall parts 32.

Fig. 5 shows the basic concept of an embodiment of the invention, which is in the form of a recessed wall or ceiling lamp.

In this embodiment, a housing 1 in the form of a rectangular installation pot with external stop flanges 12 is used. In this housing 1, a extending over the housing width Lichtleitwand 14 is provided, which extends from a rear-side upper corner portion 13 to the this corner portion 13 diagonally opposite stop flange 12, i. extends obliquely through the housing. The opening-side end 18 of the light guide wall is preferably fixed by clamping between the associated stop surface 12 and a cover frame 17 which encloses the housing opening.

The rear wall-side end region of the light guide wall 14 is preferably angled twice and preferably at right angles, so that a first angling 15 can serve as a support for the light source 8. The light beam generated by the light source 8 enters the region between the light guide wall 14 and the light surface 16 via a corresponding recess in the bend.

A second bend 16 following the first bend 15 runs parallel to the light guide wall 14 and serves as an abutment and attachment surface for the illuminated area 6. This illuminated area 6 consists of translucent material, in particular of opal glass or a corresponding plastic material and it also extends beyond the housing width and forward to approximately in the region of the opening plane of the lamp.

As a light source 8, a plurality of mounted on a support member LED elements with individual or common focusing optics, but also a fluorescent lamp assembly, in particular in the form of a multi-bar compact fluorescent lamp can be used.

The perspective view after Fig. 6 shows a particularly advantageous, practical embodiment of the invention, in which case the lamp consists of two telescoping and mutually lockable units. One of these two units is formed by the housing 1 designed in the manner of a rectangle pot, which has a circumferential, flange-like stop surface 12 on the opening side and carries a mounting plate 21 on the rear side, on which the electrical or electronic components such as ballast 19, terminals and the like are attached. In the upper corner region of the housing 1, the mounting plate is formed in the illustrated embodiment as a support for a socket of a compact fluorescent tube 20. Instead of a fluorescent lamp, a carrier system for a plurality of LEDs may be connected to the mounting plate 21.

In the upper part of the housing 1 12 inwardly extending lugs are provided with housing slots 28 in the plane of the stop surface.

In this the light source and the required electrical components containing housing 1, the assembly 26 can be inserted, wherein in the inserted State, the stop surface 12 of the housing 1 and the cover 17 of the assembly 26 with the interposition of a in Fig. 7 to see seal 22 lie flat against each other and provided on the cover frame 27 hooks 24 which engage in the housing slots 28, and an eccentric or cone lock 25 are firmly clamped together.

In the assembled state of housing 1 and assembly 26, the light unit 20 is positioned opposite a translucent and sealingly mounted plate 23 of the assembly 26, so that the light emitted by the light unit 20 light enter the space between the light guide 14 and the luminous surface 6 of the assembly 26 can.

The assembly 26 is formed as a self-contained unit, i. their inner space receiving the luminous area 6 is delimited by the obliquely extending light guide wall 14, the side walls 27, an opening-side glass cover and a cover wall 29 and the light-transmitting plate 23 opposite the light source 20.

Which shows the assembly 26 in a rear view Fig. 7 shows details of the structure described and also shows the effective between the cover 17 and the stop surface 12 of the housing 1 seal 22 and cooperating with the housing slots 28 hooks 24, which together with an eccentric or conical closure 25 a releasable, but at the same time stable and ensure a tight connection between both units.

The light-emitting surface 6 forming the disc is bolted with the interposition of a seal with the angled surface 16.

The design of the lamp in the form of two detachable units also optimal interior ventilation is guaranteed with appropriate moisture exchange, so that no annoying condensation occurs.

LIST OF REFERENCE NUMBERS

1

casing

2

top wall

3

bottom wall

4

bulkhead

5

Light exit opening at the top

6

light area

7

support surface

8th

LED elements

9

Light exit opening below

10

Mark

11

viewing area

12

stop surface

13

corner

14

Lichtleitwand

15

first bend

16

second bend

17

Cover

18

opening end of light guide wall

19

ballast

20

Fluorescent Lamp

21

mounting plate

22

poetry

23

translucent plate

24

hook

25

eccentric closure

26

unit

27

side walls

28

housing slot

29

mounting surface

30

baseplate

31

Channel member

32

Support wall parts

33

holder

34

headband

35

cover

36

poetry

37

flange

38

cap

39

locking element

40

Long hole

41

terminal

42

Plug

43

top wall

44

wall section

Claims (21)

Wall luminaire with a housing (1) intended for accommodating the electrical components and at least one light-permeable element fastened to the housing,
characterized,
that the housing (1) has the shape of a flat cuboid with a rectangular top and bottom wall (2, 3) and preferably square end walls (4),
that at least one in particular centrally located light exit opening (5) and the front of the housing (1) associated with at least in the top wall (2) or the bottom wall (3) has a planar; parallel to the front wall of the housing (1) extending luminous surface (6) is provided, which consists of opal glass or a light-effective plastic material, and
that in the interior of the housing (1) as a light source on at least one support surface (7) a plurality of LED elements (8) are arranged such that a directed light beam between the wall and luminous surface (6) is generated on the one hand ceiling and / or bottom side causes a region lighting and on the other hand, starting from the respective light exit opening (5) extended so that each luminous surface (6) is located in the grazing light region of the light beam. Wall lamp according to one of the preceding claims,
characterized,
that in the bottom wall (3) of the housing (1) at least one of the top wall-side light exit opening (5) corresponding, in particular coaxial light exit opening (9) is provided with an associated light source. Wall lamp according to claim 2,
characterized,
in that a luminous surface (6) is assigned to each of the light sources directed upwards and downwards, and the housing (1) is located mid-symmetrically between the two identical luminous surfaces (6). Wall lamp according to one of the preceding claims,
characterized,
that the width of each light-emitting surface (6) equal to the longitudinal extent of the housing (1) and the housing (1) or a corresponding housing top wall forms a respective luminous area (6) defining the visible surface (11). Wall lamp according to one of the preceding claims,
characterized,
that the light exit openings (5) are circular or elongated. Wall lamp according to one of the preceding claims,
characterized ,
that the luminous surface (6), opposite the wall side, is provided with a surface, likewise fixed to the housing (1), with reflective and / or scattering properties. Luminaire according to one of the preceding claims,
characterized,
in that the housing (1) has a base plate (30) for holding all functional components, a profile part (31) which is substantially U-shaped in cross-section with at least one light exit opening (5, 9) and an outer attachment surface (29) for a luminous surface (6 ) and lateral support wall parts (32). Luminaire according to claim 7,
characterized,
in that on the base plate (30) a holder (33) for functional components, in particular formed from stamped sheet metal parts, and at least one support surface (7) for LED elements (8) with associated optics is fastened. Luminaire according to claim 8,
characterized,
in that the support surfaces (7) for the LEDs (8) with associated optics are secured in a position-adjustable and / or tilt-adjustable manner on a retaining bracket (34) via long and / or oblique-hole connections. Luminaire according to claim 7,
characterized,
that the light exit openings formed in the profile part (31) (5, 9) are sealed by a transparent cover (35). Luminaire according to claim 10,
characterized,
that the base plate (30) with the profile part (31) via the lateral support wall portions (32) with interposition of a particular integrally formed seal (36) are connectable to an outwardly sealed parallelepiped. Luminaire according to one of claims 7 to 11,
characterized,
in that the support-wall parts (32) which can be screwed to the U-profile part (31) at the end face can be fastened to the base plate (30) via angled flange parts (37) and have retaining elements for latching side cover caps (38). Wall luminaire with a housing (1) intended for accommodating the electrical components and at least one light-permeable element fastened to the housing,
characterized,
that the housing (1) is formed as a rectangular recessed housing, in particular with an external stop flange (12),
that in the housing (1) over the casing width extending and by a rear wall-side region, in particular the corner region (13) to the said corner (13) diagonally opposite the front housing end or stop flange (12) extending Lichtleitwand (14) is provided,
that in parallel and at a distance from the light guide wall (14) in the housing (1) is provided a particular flat, approximately to the opening plane of the housing (1) extending luminous surface (6) made of opal glass or a corresponding plastic material, and
that in the back top corner (13) of the housing (1) preferably over the casing width extending light source (8, 20) is provided which generates a directed, strip-shaped light beam between Lichtleitwand (14) and light-emitting surface (6), wherein both the Light guide wall (14) and the luminous surface (6) is located in the grazing light region of the outwardly expanding light beam. Wall lamp according to claim 13,
characterized,
in that the light source consists of a plurality of LED elements (8) arranged on at least one carrier surface (7) and in that a focusing lens is assigned to the LED elements (8), in particular to each LED element (8) a focusing lens. Wall lamp according to claim 13,
characterized,
that the light source consists of a multi-bar fluorescent tube array. Wall lamp according to claim 13,
characterized,
that the rear-wall-side end portion of the Lichtleitwand (14) directed to a to the opening side of the housing (1) first bend (15) merges, in a particular, by a transparent plate (23) covered light entrance opening is formed. Wall lamp according to claim 16,
characterized,
in that the first angled portion (15) is followed by a second angled portion (16) which is approximately parallel to the light guide wall (14) and forms an abutment and fastening surface for the luminous surface (6). Wall light, in particular according to one of claims 13 to 17,
characterized,
that on the rear wall of the preferably made of plastic housing (1) a particular metallic mounting plate (21) for holding the light source (8, 20) and in particular also all other electronic functional components (19) is mounted, and that all the light conducting and leading Components (6, 14, 23, 27) to a in the housing (1) insertable and with the housing (1) connectable assembly (26) are summarized. Wall lamp according to claim 18,
characterized,
in that the structural unit (26) can be connected to the housing (1) having a peripheral flange-like stop surface (12), preferably integrally with the covering elements (6, 14, 23, 27) guiding the light-conducting and leading components. Wall lamp according to claim 19,
characterized,
in that the cover frame (17) preferably engages with the interposition of a seal (22) by means of housing slots (28) Hook (24) and an eccentric or conical closure (25) close to the housing (1) can be coupled. Wall light according to one of claims 18 to 20,
characterized,
in that the interior of the housing (1) is sealed with respect to the light guide space delimited by the light guide wall (14), the side walls (27) and the translucent plate (23) of the assembly (28).

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