EP2647907B1 - Light insert with reflector - Google Patents

Description

The invention relates to a lamp insert for a lamp, in particular for a lamp for lighting purposes, which is preferably designed as an interior or exterior lamp, and a lamp comprising such a lamp insert.

The WO 2012/163625 A1 , which forms state of the art under Art. 54 (3) EPC, discloses an LED luminaire which has a housing which is round in cross-section. The case bottom is made of aluminum and carries an LED board. The upper side of the housing is formed from a one-piece plastic part, which has webs inside, which may optionally also be reflective.

It is the object of the present invention to provide a luminaire insert of the type mentioned, whose components are easy to manufacture and assemble, and which is also robust.

This object is achieved by a luminaire insert according to claim 1 and a luminaire according to claim 15.

In particular, the present invention provides a luminaire insert with a carrier element, on which a luminaire module and a plurality of reflector modules of the luminaire insert are arranged. The light-emitting module has at least one light-emitting means. The reflector modules are fastened to the carrier element and exert a contact force on the illuminant module in the direction of the carrier element.

According to the invention, a force is exerted simultaneously on the carrier element by the attachment of the plurality of reflector modules to the carrier element, by means of which it is pressed in the direction of the carrier element. In this case, in some embodiments, the luminous means module can lie directly against the carrier element. In other embodiments, a further element, in particular a heat-conducting foil, can be arranged between the luminous-element module and the carrier element.

By the contact force both the mechanical definition and the thermal connection of the lamp module is improved on the support element. In particular, a desired contact force can be set in this way, which causes the required mechanical stability and thermal connection and at the same time prevents mechanical damage to the lamp module. Furthermore, the luminous means module according to the invention clamped by the reflector modules to the support member so that it is securely attached to the support member even with a temperature-induced expansion.

Furthermore, by the separate design of the reflector modules can be dispensed with a painting or other processing of the support member to form light-guiding structures. This simplifies the manufacture of the luminaire insert. Due to the separate design of the reflector module and the carrier element, both can be optimized separately instead.

In some embodiments, the carrier element, the lamp module and / or the reflector modules are elongated. In particular, the carrier element, the lighting module and / or the reflector modules can be aligned parallel to one another. In some embodiments, one or each of the reflector modules may extend along an entire length of the support member.

The reflector modules may be made of a reflective material, have a reflective surface coating or be provided with one or more reflective elements. The reflector modules can be formed directly and / or diffusely reflecting. In some embodiments, a reflective surface of the reflector module is planar. In some embodiments, a reflective surface of the reflector module may be at least partially curved, in particular concavely or convexly curved.

In some embodiments, the luminaire insert has two or four reflector modules, which are fastened to the carrier element and exert a contact force on opposite sides of the illuminant module in the direction of the carrier element. In this way, the illuminant module is fastened on different sides on the carrier element.

In some embodiments, the luminaire insert has an axis of symmetry. In this case, in particular, the luminous means can be arranged along the axis of symmetry of the luminaire insert. In this way, a symmetrical light distribution can be achieved.

In a preferred embodiment, the at least one light source comprises one or more LED (light emitting diode) and / or OLED (organic light emitting device). LED and Furthermore, they require only little space and have only a low weight, so that the light-emitting module can be securely held by the reflector modules on the support element. Furthermore, LED and OLED usually require only a low voltage, so that the luminaire insert according to the invention can comply with the creepage distances and clearances to be planned for safety reasons. In other embodiments, alternatively or additionally, another illuminant, in particular a fluorescent tube, may be provided.

According to a preferred embodiment, the illuminant module is fixed to the carrier element only by the contact force of the reflector modules. This allows a particularly simple mounting of the lamp module on the support element. In some embodiments, a guide may be provided on the illuminant module and / or on the carrier element in order to align the illuminant module relative to the carrier element. This facilitates the attachment of the lamp module.

According to a preferred embodiment, the reflector modules are connected to the illuminant module via an elastic region, in particular a soft lip. The use of an elastic region prevents damage to the lamp module and the reflector modules. Furthermore, this embodiment allows a more accurate adjustment of the contact pressure by the dimensions and the material of the elastic region are selected accordingly. In addition, the elastic region allows a safer attachment even with a temperature-induced expansion of the lamp module.

It is particularly preferred that the elastic region is integrally formed or attached to the reflector module. In this way, the reflector module can be easily attached to the light-emitting module during assembly without a specific area of the light-emitting module having to be targeted. This simplifies the assembly. In particular, the elastic region can be arranged on an edge of the reflector module. This further simplifies the installation of the reflector module.

According to a preferred embodiment, the reflector modules are made of plastic. This allows a simple production and a lower weight of the lamp. In addition, this design also allows the safe compliance of required creepage distances and clearances.

In some embodiments, the reflector modules are releasably attached to the support member. The reflector modules can in particular without tools, preferably by means of a snap, clamp and / or latching connection be releasably secured to the support member. This allows easier installation of the reflector modules on the support element. Furthermore, this allows, if necessary, a simple replacement of the reflector modules and / or the lamp module. On the reflector modules and the carrier element locking means and / or snap connection means may be provided. In some embodiments, the latching or snap connection means provided on the reflector modules and / or on the carrier element are made of plastic. In the case of a clamping connection, it can be provided, in particular, that another element of the luminaire insert, in particular a primary cover of the luminaire insert, preferably clamps one or more of the reflector modules to the carrier element. This allows easy assembly and disassembly of the lamp insert and requires no additional clamping device, which may nevertheless be provided alternatively or additionally in other embodiments, to clamp the reflector module to the support member.

According to a preferred embodiment, the reflector modules also exert a transverse force on the illuminant module transversely to the contact pressure. The lateral force acts laterally on the illuminant module. The transverse force may act along a plane along which the illuminant module extends. This embodiment is particularly preferred when several reflector modules abut on different sides of the lamp module. As a result, the lamp module can be clamped between the reflector modules, whereby it is aligned in the lateral direction.

In some embodiments, a reflector module applies force to an edge or edge of the light module. Further, in some embodiments, another reflector module applies force to an opposite edge or edge of the light emitting module. In other embodiments, an opposite edge or an opposite edge of the light module abuts against a structure of the carrier element. This also allows positioning of the lamp module in a predefined position.

According to a preferred embodiment, one, in particular each of the reflector modules further comprises a light-diffusing and / or light-directing structure. As a result, the efficiency of the lamp can be further improved. Furthermore, the lighting properties of the lamp can be specifically influenced in order to achieve a desired lighting impression and a desired light distribution curve. In particular, the structure may be a prism structure.

According to a preferred embodiment, the lamp insert further comprises an at least partially transparent primary cover, which covers the lamp module and / or the reflector modules. Due to the primary cover, the exiting light can be selectively influenced at least in a primary direction. The primary cover may be provided with light-influencing structures, e.g. be provided a prism structure. The light-influencing structures can be arranged on an inner and / or an outer side of the primary cover. The primary cover can diffuse diffusely. This prevents a viewer from being blinded by the light source. The primary cover can be made of plastic, in particular of polymethyl methacrylate (PMMA).

It is preferred that the primary cover completely covers the lamp module and the reflector modules. As a result, the modules are isolated from an environment of the luminaire insert, so that they are dust and moisture protected. Further, in this embodiment, the modules are protected from contamination or misalignment by direct contact by an installer or user. The primary cover also prevents the modules from being disassembled accidentally. This is particularly advantageous when the lamp module and / or the reflector modules are attached to the support element without tools.

In a preferred embodiment, the primary cover is arched, in particular trough-shaped arched. This allows a light emission in different directions.

According to a preferred embodiment, the primary cover is releasably secured to the support member. In particular, the primary cover can be fastened to the support element without tools, preferably by means of a snap or latching connection. This facilitates the assembly and disassembly of the primary cover.

In some embodiments, the primary cover may abut one or more of the reflector modules. As a result, a displacement of the reflector modules can be prevented and the stability of the luminaire insert can be further increased. In some embodiments, the primary cover clamps one or more of the reflector modules, in particular to the carrier element. This allows easy attachment of the reflector module.

In a preferred embodiment, the carrier element is made of metal, in particular aluminum. This allows an efficient heat dissipation from the lamp module, so that the lamp is well cooled. The support member may further comprise cooling fins for improving the cooling. In addition, the metal gives the luminaire insert a high mechanical stability.

In a preferred embodiment, the carrier element has one or more passage openings for decoupling an indirect light component. As a result, the luminaire insert can decouple not only a direct, but also an indirect light component. The direct provision of passage openings in the support element, a luminaire insert is provided, which allows a simple construction of a luminaire with an indirect light component.

According to a preferred embodiment, one or more of the reflector modules have one or more passage openings for coupling out an indirect light component. As a result, a targeted adjustment of the direct and indirect light component of the luminaire insert is made possible. Areas of the reflector module, in which a passage opening is provided, contribute to the decoupling of the indirect light component, while the remaining regions of the reflector module contribute to the decoupling of a direct light component.

The passage opening in the reflector module and / or in the carrier element can be provided with a transparent cover, which in particular has light-directing and / or light-scattering structures. As a result, the indirect light component can be adjusted specifically. This allows a simpler production of a lamp with indirect light.

In a further aspect, the invention provides a luminaire with a luminaire insert of the type mentioned. The luminaire may further comprise an at least partially transparent secondary cover include. The secondary cover may be arranged so that light exiting through the primary cover at least partially hits the secondary cover. The secondary cover can have light-directing and / or light-scattering structures. The secondary cover may at least partially define a space in which the lamp insert is received.

Figur 1

zeigt einen Querschnitt durch eine erste Ausführungsform eines Leuchteneinsatzes.

Figur 2

zeigt eine perspektivische Ansicht des Leuchteneinsatzes gemäß Figur 1.

Figur 3

zeigt einen Ausschnitt des Querschnitts nach Figur 1.

Figur 4

zeigt eine perspektivische Ansicht einer weiteren Ausführungsform eines Leuchteneinsatzes.

Further features and advantages of the present invention will become apparent from the following description of preferred embodiments, wherein like reference numerals designate like features.

FIG. 1

shows a cross section through a first embodiment of a lamp insert.

FIG. 2

shows a perspective view of the lamp insert according to FIG. 1 ,

FIG. 3

shows a section of the cross section FIG. 1 ,

FIG. 4

shows a perspective view of another embodiment of a lamp insert.

FIG. 1 shows a luminaire insert according to the invention in a cross section. The luminaire insert has a carrier element 2. In a central region of the carrier element 2, a lighting module 3 abuts the carrier element 2 on a mounting side. The illuminant module 3 is provided with a plurality of luminous means 31 in the form of LED. The luminous means module 3 runs flat and abuts a flat region of the carrier element 2. Furthermore, the luminaire insert comprises two reflector modules 4, which are arranged on opposite sides next to the luminous means module 3 and also rest against the carrier element 2. The reflector modules 4 each have, in cross-section, two snap hooks 42 arranged one behind the other, which are received in corresponding receiving openings 22 of the carrier element 2. In this way, the reflector modules 4 can be fixed by means of a snap connection to the carrier element 2, without the need for a tool assembly. For this purpose, the hooks 42 of the reflector modules 4 are resilient, so that they rest in the mounted state against a arranged in the region of the receiving openings 22 of the support member 2 lips 23 and clamp them.

In the assembled state, the reflector modules 4 abut against the illuminant module 3 at their edges and press it against the carrier element 2. At the edges of the reflector modules 4, soft lips 41 are arranged with which the reflector modules 4 press against the illuminant module 3 and against the carrier element 2 establish. For attachment of the lamp module 3 to the carrier element 2, no further fastening devices are provided.

The soft lips 41 are applied to opposite edges of the lamp module 3 and press the lamp module 3 not only by means of a contact force in the direction of the support member 2, but also by means of a transverse force in a lateral direction, parallel to an extension plane of the lamp module 3. Since the reflector modules 4 at opposite edges each exert a transverse force on the lamp module 3, this is clamped between the reflector modules 4, so that its lateral position is fixed. As a result, the illuminant module 3 is not only fixed to the carrier element 2, but at the same time laterally aligned and centered.

Furthermore, the lamp has a primary cover 5, which is curved and is secured at its edges to the support element 2. For this purpose, the primary cover 5 at opposite edges latching lugs 59, which protrude in the mounted state in recesses 25 of the support member 2. There, the locking lugs 59 engage behind projections 29 of the support element 2 a. This allows a simple and tool-free installation of the primary cover 5 on the support element 2. Furthermore, 59 protrusions 58 are provided on an outer side of the primary cover 5 in the vicinity of the latching hooks. By these projections 58, the installer can exert a force on the primary cover 5 and press them apart at their ends, wherein the primary cover 5 is elastically deformed, so that the latching hooks 59 disengage from the projections 29. In this way, the fitter can easily remove the primary cover 5.

The support element 2 is made of aluminum, while the reflector modules 4 are coextruded on a plastic.

FIG. 2 shows a perspective view of the lamp insert after FIG. 1 , As in FIG. 2 recognizable, the light insert is elongated. The primary cover 5, the bulb module 3 and the reflector modules 4 are elongate and are aligned parallel to each other. The luminaire insert has an axis of symmetry along which the luminous means 31 of the luminaire insert 3 are arranged.

FIG. 3 shows a section of the cross section FIG. 1 in the region of a reflector module 4. The reflector module 4 has a reflective surface 44, which in this embodiment runs flat. On one of the reflective surface 44 opposite side, the reflector module 4 in cross-section two snap hooks 42 which pinched in the assembled state lips 23 of the support member 2, so that the reflector module 4 can be attached to the support element 2 in a simple manner and without tools. Furthermore, in FIG. 3 recognizable that the soft lip 41 of the reflector module 4 abuts an edge of the lamp module 3, so that both a contact force in the direction of the support member 2 and a force acting transversely thereto is exerted on the lamp module 3.

FIG. 4 shows a further embodiment of a lamp insert according to the invention. This differs from the one in the FIGS. 1 to 3 illustrated embodiment by the reflector modules used 4. The reflector modules 4 in FIG. 4 have a plurality of through holes 47, which are separated by webs 48 from each other. The passage openings 47 allow a decoupling of an indirect light component (in FIG. 4 downward). In addition, 2 through holes 27 are provided in the support member, which are separated by webs. The passage openings 27 and 47 are aligned in pairs to each other, so that they lie one above the other.

The webs 48 of the reflector modules 4 each have two snap hooks 42 arranged one behind the other, as described above with respect to FIGS FIG. 1 illustrated embodiment are described. The webs of the carrier element located between the passage openings 27 each have two corresponding exception openings 22 for the snap hooks 42. As a result, a secure mounting of the reflector module 4 on the carrier element 2 is made possible.

Modifications of the described embodiments are possible according to the invention. In particular, the reflector modules can furthermore have a light-scattering structure.

LIST OF REFERENCE NUMBERS

2

support element

3

Lamp Module

4

reflector module

5

primary coverage

22

receiving opening

23

lip

25

recess

27

Through opening

29

head Start

31

Lamp

41

soft lip

42

snap hooks

44

reflective surface

47

Through opening

48

web

Claims (15)

1. Luminaire insert having a carrier element (2) on which an illuminant module (3) and a plurality of reflector modules (4) of the luminaire insert are arranged, the illuminant module (3) having at least one illuminant (31), the reflector modules (4) being fastened to the carrier element (2) and exerting a contact force on the illuminant module (3) in the direction of the carrier element (2).
2. Luminaire insert according to claim 1, wherein the at least one illuminant (31) comprises one or more LEDs and/or OLEDs.
3. Luminaire insert according to one of the preceding claims, wherein the illuminant module (3) is fixed to the carrier element (2) only by the contact pressure of the reflector modules (4).
4. Luminaire insert according to one of the preceding claims, the reflector modules (4) bearing against the illuminant module (3) via an elastic region, in particular a soft lip (41).
5. Luminaire insert according to claim 4, the elastic region (41) being integrally formed or attached to the reflector module (4).
6. Luminaire insert according to one of the preceding claims, the reflector modules (4) being made of plastic.
7. Luminaire insert according to one of the preceding claims, wherein the reflector modules (4) are detachably fastened to the carrier element (2), in particular without tools, preferably by means of a snap, clamp and/or latch connection.
8. Luminaire insert according to one of the preceding claims, the reflector modules (4) also exerting a transverse force on the illuminant module (3) transversely to the contact force.
9. Luminaire insert according to one of the preceding claims, wherein at least one, in particular each of the reflector modules (4), further has a light-scattering and/or light-directing structure.
10. Luminaire insert according to one of the preceding claims, further comprising an at least partially transparent primary cover (5) covering the illuminant module (3) and/or the reflector modules (4).
11. Luminaire insert according to claim 9, wherein the primary cover (5) is curved, in particular in the form of a trough.
12. Luminaire insert according to claim 9 or 10, wherein the primary cover (5) is detachably fastened to the carrier element (2), in particular without tools, preferably by means of a snap or latch connection.
13. Luminaire insert according to one of the preceding claims, the support element (2) being made of metal, in particular aluminum.
14. Luminaire insert according to one of the preceding claims, the support element (2) having one or more through-openings (27) for coupling out an indirect light component and/or one or more of the reflector modules (4) having one or more through-openings (47) for coupling out an indirect light component.
15. Luminaire with a luminaire insert according to one of the preceding claims.

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