Luminaire with two-part connection compartment

Abstract

Luminaire (1), in particular wall luminaire and / or ceiling luminaire, at least comprising - a housing (2), at least one light source (3) and a holding device (4), - wherein the housing (2) has a light source (5) and a back part (6), wherein the light source (5) has a light emission surface (7), - wherein the light source (3), in particular an LED light source, is housed within an interior space (8) of the housing (2) and wherein the light source (3) is arranged such that it emits light in the direction of the light-emitting surface (7) during operation, - wherein the holding device (4) is detachably connectable to the housing (2) and wherein the holding device (4) is designed to be attached to a mounting surface, in particular a wall and / or ceiling, characterized in that the rear part (6) has a two-part connection space (9) which projects into the interior (8) of the housing (2).

Description

[0001] The present invention relates to a luminaire, in particular a wall luminaire and / or ceiling luminaire, comprising at least a housing, at least one light source and a holding device, wherein the housing has a light-emitting element and a back part, wherein the light-emitting element has a light-emitting surface, wherein the light source, in particular an LED light source, is housed within an interior of the housing and wherein the light source is arranged such that it emits light in the direction of the light-emitting surface during operation, wherein the holding device is detachably connectable to the housing and wherein the holding device is designed to be attached to a mounting surface, in particular a wall and / or ceiling.

[0002] Current technology includes luminaires that incorporate a light source within their housing, emitting light towards the light-emitting surface during operation. Increasingly, LEDs are used as the light source in these luminaires. This offers several advantages. Besides low energy consumption, LEDs allow for the creation of a wide variety of lighting effects. Different colors and intensities are possible, as well as the generation of light with varying color temperatures. It is also possible to design the light-emitting surface to create a desired lighting effect, such as a starry sky.

[0003] Besides the desire for individual lighting, there is a trend towards luminaires with a low profile. This requires special measures, as a customized lighting design often necessitates that the emitted light is not, or as little as possible, disturbed or deflected by the luminaire's structure.

[0004] This is where the invention comes in.

[0005] The object of the present invention is to propose a luminaire which, by its design, does not obstruct the emitted light of the light source and at the same time allows for a low installation height.

[0006] The object of the invention is achieved by a luminaire, in particular a wall luminaire and / or ceiling luminaire, comprising at least a housing, at least one light source and a holding device, wherein the housing has a light source and a back part, wherein the light source has a light-emitting surface, wherein the light source, in particular an LED light source, is housed within an interior of the housing and wherein the light source is arranged such that it emits light in the direction of the light-emitting surface during operation, wherein the holding device is detachably connectable to the housing and wherein the holding device is designed to be attached to a mounting surface, in particular a wall and / or ceiling, wherein the back part has a two-part connection compartment which projects into the interior of the housing.

[0007] The two-part connection compartment can be designed to have an inner connection compartment and an outer connection compartment. The inner connection compartment and the outer connection compartment are preferably located next to each other. This offers the advantage that the height by which the connection compartment projects into the interior of the housing can be kept to a minimum.

[0008] It may be designed so that the inner connection compartment is open to the interior, while the outer connection compartment is closed to the interior. If the inner connection compartment is open to the interior and thus sealed off from the surrounding environment, this offers the advantage that contact with the inner connection compartment from the outside is either impossible or extremely difficult. This provides increased safety when mounting the light fixture on a wall or ceiling.

[0009] The outer connection compartment is closed off from the interior and thus open to the surrounding environment. This offers the advantage that the outer connection compartment provides a safe way to electrically connect the light fixture.

[0010] It may be specifically designed that the retaining device is detachable, for example, connectable to the back panel via a bayonet fitting. The retaining device then seals the outer connection area and prevents the ingress of, for example, dirt or moisture.

[0011] It may be provided that at least one circuit board for controlling the light source is located within the inner connection compartment. This circuit board allows the light source to be controlled in such a way as to produce a desired lighting pattern. Since the circuit board is housed within the inner connection compartment, it is protected against external influences. It is also possible to provide for the placement of other electronic components necessary for the operation of the luminaire within the inner connection compartment.

[0012] The light fixture may have a cover designed to shield the inner connection space from the interior of the housing.

[0013] The cover may be designed in such a way that the light emitted by the light source is not deflected by the cover. The cover is constructed in such a way as to avoid shadows and to produce a homogeneous light pattern.

[0014] The outer connection compartment may be provided with connection means for linking to the circuit board, wherein the connection means can be connected, at least indirectly, to a power supply. The outer connection compartment may, for example, have retaining means for terminals to which the external power supply and the connection means are connected.

[0015] It is possible that the light source comprises a large number of LEDs, which are designed to emit a homogeneous light pattern. The individual LEDs can, for example, be arranged equidistantly around the perimeter of the interior. Even with a large number of LEDs, the problem can arise that, during operation, the individual LEDs of the light source remain visually discernible to an observer, thereby impairing the optical appearance of the light unit or the luminaire.

[0016] Each light-emitting diode can then be provided with a lens, each lens being designed to produce a wide beam angle of the emitted light, with the beam angle being in a range between 150° and 180°, preferably in a range between 170° and 180°. The beam angle (also called the angle of illumination or cone of light) describes how the light from a source is distributed in space. It is measured in degrees and significantly influences the size of the illuminated area and how much the light decreases with increasing distance. A wide beam angle, also called a shallow beam angle, in the range > 60°, produces a very wide cone of light, which allows for large-area illumination. This is particularly suitable for indirect lighting or area lighting.In this context, it is particularly advantageous that the light-emitting diodes of the LED light source, and thus the "points of light" generated by them during operation, are not visible to an observer from the outside, resulting in a more harmonious overall optical appearance of the lighting unit.

[0017] The luminaire may have a fixed height and a maximum dimension. In the context of this application, the maximum dimension of a substantially round luminaire may be the diameter of the housing. The maximum dimension may be 10 times, preferably 12 times, and particularly preferably 19 times the fixed height. The two-part connection compartment makes it possible to keep the height protruding into the interior of the housing low. This is particularly feasible when the inner and outer connection compartments are arranged side by side. Due to the low fixed height relative to the luminaire's maximum dimension, a luminaire is proposed that, after mounting on a wall or ceiling, barely protrudes and thus integrates well into a room design.

[0018] Further features and advantages of exemplary embodiments of the invention are described below with reference to the drawings. The same reference numerals are used for identical or similar parts and for parts with identical or similar functions. The drawings show: Fig. 1 an exploded view of a lamp according to the invention Fig. 2 an exploded view of the light fixture Fig. 1 from a different perspective Fig. 3 A perspective view of the light fixture with the mounting bracket removed Fig. 4 A perspective view of the light fixture with the mounting bracket attached Fig. 5 a sectional view of the light fixture Fig. 6. A side view of the light fixture Fig. 7 a perspective view of the lamp

[0019] It is not necessary for a device according to the invention to have all the features described below. It is also possible for a device according to the invention to have only individual features of the embodiment described below.

[0020] The Fig. Figures 1 to 7 show a luminaire according to the invention 1. The embodiment shown can preferably be used as a wall or ceiling luminaire.

[0021] In the Fig. 1 and Fig. Figure 2 shows an exploded view of the individual components of the luminaire 1. The luminaire 1 has a housing 2, at least one light source 3, and a mounting device 4.

[0022] The housing 2 comprises a light source 5 with a light-emitting surface 7 and a back section 6. The light source 3, which is located within an interior space 8 of the housing 2, is arranged such that it emits light towards the light-emitting surface 7 during operation. Preferably, the at least one light source 3 is an LED light source with a plurality of light-emitting diodes.

[0023] The holding device 4 is designed to be attached to a mounting surface (not shown in detail), in particular a wall and / or ceiling. This attachment can be carried out if the holding device 4 is, as shown in Fig. Figure 3 shows the housing 2 of the luminaire 1 being removed. To install the luminaire 1 on a wall or ceiling, the mounting bracket 4 can first be attached. Since the mounting bracket 4 is lightweight, this is particularly advantageous for ceiling mounting, which is usually done overhead. Fig. Figure 3 shows that the retaining element 4 can be connected to the housing 2, here to the rear part 6 of the housing 2, via a type of bayonet fitting. Fig. Figure 4 shows the luminaire 1 with the mounting bracket 4 attached. Once the mounting bracket 4 has been mounted on a wall or ceiling, the housing 2 of the luminaire 1 can be connected to the mounting bracket 4.

[0024] In the Fig. Figures 1 to 3 show that the rear part 6 has a two-part connection compartment 9, which projects into the interior 8 of the housing 2. The two-part connection compartment 9 has an inner connection compartment 10 and an outer connection compartment 11, wherein the inner connection compartment 10 is open to the interior 8 and the outer connection compartment 11 is closed to the interior 8.

[0025] Fig. Figure 2 shows that at least one circuit board 12 for controlling the light source 3 is arranged within the inner connection compartment 10. In addition to the circuit board 12, other electronic components can be housed in the inner connection compartment 10. The advantage is that the inner connection compartment 10 is only open to the interior 8 of the housing 2 and is sealed from the environment. If the retaining element 4 is removed from the housing 2 to mount it on a mounting surface, the circuit board 12 and the other electronic components remain protected.

[0026] In the Fig. 1 and Fig. Figure 2 shows that the luminaire 1 has a cover 13. The cover 13 shields the inner connection compartment 10 from the interior 8 of the housing. In this embodiment, the at least one light source 3 is attached to the cover 13. The cover 13 is designed such that the light emitted by the light source 3 is not deflected by the cover 13.

[0027] The outer connection compartment 11 has connection means that are connected to the circuit board 12. The connection means can be indirectly connected to a power supply. For this purpose, the Fig. 1 to 3 in the outer connection space 11 retaining means 16 are visible, into which terminals 15 can be inserted, which enable a connection between the connection means and an external power supply.

[0028] To achieve a homogeneous light pattern, the individual light-emitting diodes of the light source 3 can have a lens 14. These lenses 14 are in Fig. 2. The lenses 14 are designed to produce a high emission angle of the emitted light. The emission angle can be in a range between 150° and 180°, preferably in a range between 170° and 180°.

[0029] In the Fig. Figures 5 to 7 show that the luminaire 1 has a very low profile. In particular, the profile is low in relation to the longest dimension of the luminaire 1. The luminaire 1 of the exemplary embodiment is round, so that its longest dimension is the diameter of the housing 2. The luminaire 1 of the exemplary embodiment in the Fig.Items 1 to 7 can be produced in different sizes. For example, with a housing diameter 2 between 375mm and 580mm, luminaire 1 may have a mounting height of only 30mm. With a diameter of less than 375mm, the mounting height can be as low as 27mm.

Claims

[1] Luminaire (1), in particular wall luminaire and / or ceiling luminaire, at least comprising - a housing (2), at least one light source (3) and a holding device (4), - wherein the housing (2) has a light source (5) and a back part (6), wherein the light source (5) has a light emission surface (7), - wherein the light source (3), in particular an LED light source, is housed within an interior space (8) of the housing (2) and wherein the light source (3) is arranged such that it emits light in the direction of the light-emitting surface (7) during operation, - wherein the holding device (4) is detachably connectable to the housing (2) and wherein the holding device (4) is designed to be attached to a mounting surface, in particular a wall and / or ceiling, characterized by , that the rear part (6) has a two-part connection space (9) which protrudes into the interior (8) of the housing (2). [2] Luminaire (1) according to claim 1, characterized by , that the two-part connection space (9) has an inner connection space (10) and an outer connection space (11). [3] Luminaire (1) according to the previous claim, characterized by , that the inner connection space (10) is open to the interior (8) and the outer connection space (11) is closed to the interior (8). [4] Luminaire (1) according to any of the preceding claims, characterized by , that at least one circuit board (12) for controlling the light source (3) is arranged within the inner connection space (10). [5] Luminaire (1) according to any of the preceding claims, characterized by , that the luminaire (1) has a cover (13) wherein the cover (13) is designed to shield the inner connection space (10) from the interior (8) of the housing (2). [6] Luminaire (1) according to any of the preceding claims, characterized by, that the cover (13) is designed in such a way that the light emitted by the light source (3) is not deflected by the cover (13). [7] Luminaire (1) according to any of the preceding claims, characterized by , that the outer connection space (11) has connection means for connection to the circuit board (12), wherein the connection means can be connected at least indirectly to a power supply. [8] Luminaire (1) according to any of the preceding claims, characterized by , that the light source (3) has a plurality of light-emitting diodes, wherein the plurality of light-emitting diodes are designed to emit a homogeneous light pattern. [9] Luminaire (1) according to the previous claim, characterized bythat each light-emitting diode has a lens (14), wherein each lens (14) is designed to produce a high emission angle of the emitted light, wherein the emission angle is in a range between 150° and 180°, preferably in a range between 170° and 180°. [10] Luminaire (1) according to any of the preceding claims, characterized by , that the luminaire (1) has a height and a longest dimension, wherein the longest dimension is 10 times, preferably 12 times, particularly preferably 19 times the height.

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