Lighting-Means Carrier for a Strip-Lighting Luminaire

Abstract

The invention relates to a lighting-means carrier (5) for a strip-lighting luminaire, comprising: at least one lighting-means circuit board (30) having light-emitting diodes (33) that can be arranged thereon; and at least one heat sink (31) thermally connected to the lighting-means circuit board (30). In a central region, the lighting-means circuit board (30) is rigidly connected to the heat sink (31) in such a way that substantially no relative motion between the lighting-means circuit board (30) and the heat sink (31) is possible. In at least two further regions, the lighting-means circuit board (30) is connected to the heat sink (31) in a floating manner, the lighting-means circuit board (30) therefore being arranged on the heat sink (31) in such a way that the lighting-means circuit board can be moved in relation to the heat sink (31) outside of the central region. The invention further relates to a strip-lighting luminaire having at least one lighting-means carrier (5) according to the invention.

Claims

1. A light source mount (5) for a strip-lighting lamp assembly, comprising: at least one light source printed circuit board (30) having light emitting diodes (33) disposed thereon; at least one heat sink (31) thermally connected to the light source printed circuit board (30); wherein the light source printed circuit board (30) is rigidly connected to the heat sink (31) at a central area, such that relative movement between the light source printed circuit board (30) and the heat sink (31) is substantially impossible in the central area; wherein the light source printed circuit board (30) is connected in a floating manner to the heat sink (31) in at least two further areas, such that the light source printed circuit board (30) is disposed on the heat sink (31) such that it can move in relation to the heat sink (31) outside the central area.

2. The light source mount (5) according to claim 1, wherein the light source printed circuit board (30) is rigidly connected to the heat sink (31) in the central area by at least a rivet, screw (32) and/or clip connection.

3. The light source mount (5) according to claim 1 wherein the at least two further areas, at which the light source printed circuit board (30) is connected to the heat sink (31) in a floating manner, are provided at two opposing end regions of the light source printed circuit board (30).

4. The light source mount (5) according to claim 1 wherein at least one of the floating connections of the light source printed circuit board (30) to the heat sink (31) is created by at least one snap-in connection by means of a snap-in element (21) or by at least one screw or rivet connection.

5. The light source mount (5) according to claim 4, wherein the at least one snap-in element (21) is provided on an end connector (20) of a strip-lighting lamp assembly.

6. The light source mount (5) according to claim 5, wherein the end connector (20) comprises at least one further snap-in element (22), in order to snap the end connector (20) into a mating receiving element (10) of the light source mount (5).

7. The light source mount (5) according to claim 5 wherein the end connector (20) furthermore comprises a positioning and/or spacing element (23), which can be disposed in an end region between the light source mount (5) and a strip-lighting rail (1) of a strip-lighting lamp assembly.

8. The light source mount (5) according to claim 1, wherein at least one of the floating connections of the light source printed circuit board (30) to the heat sink (31) is created by at least one snap-in connection by means of a snap-in element, which is provided on a plug-in connection, and which is configured for electrically connecting the light source mount (5) to a device mount of a strip-lighting lamp assembly.

9. The light source mount (5) according to claim 4, wherein the at least one snap-in element (21) or the screw connection encompasses the heat sink (31) laterally, and keeps the light source printed circuit board (30) in contact with the heat sink.

10. The light source mount (5) according to claim 4, wherein the snap-in element (21) of the end connector (20) and/or the snap-in element of the plug-in connection assembly can engage with the light source printed circuit board (30) by means of at least one mating cut-out (8) in the light source mount (5), such that the snap-in element (21) laterally encompasses the heat sink (31), and keeps the light source printed circuit board (30) in contact with the heat sink (31).

11. The light source mount (5) according to claim 4, wherein at least one snap-in element (21) of the end connector (20) and/or the plug-in connection assembly can engage with the light source printed circuit board (30) by means of at least one mating cut-out in the light source mount, such that the snap-in element (21) extends through the heat sink (31) and the light source printed circuit board (30) by means of a cut-out in the heat sink (31) and the light source printed circuit board (30), and keeps the light source printed circuit board (30) in contact with the heat sink (31).

12. The light source mount (5) according to claim 1, wherein at least one of the floating connections of the light source printed circuit board (30) to the heat sink (31) is created by at least one screw or rivet connection, such that the light source printed circuit board (30) has a cut-out through which the screw connection is inserted, such that the light source printed circuit board (30) is screwed to the heat sink (31).

13. The light source mount (5) according to claim 1, wherein at least one of the floating connections of the light source printed circuit board (30) to the heat sink (31) is created by at least one screw or rivet connection, such that the heat sink (31) has a cut-out, through which the screw connection is inserted, such that the light source printed circuit board (30) and the heat sink (31) are screwed to the light source mount.

14. The light source mount (5) according to claim 12, wherein the cut-out through the light source printed circuit board (30) and/or through the heat sink (31) is provided as an elongated hole.

15. The light source mount (5) according to claim 1, wherein the light source mount (5) comprises at least one guide and/or bearing wall section, on or in which the light source printed circuit board (5), together with the heat sink (31) can be disposed.

16. The light source mount (5) according to claim 1, wherein the light source printed circuit board (30) has a substantially rectangular form when seen from above.

17. A strip-lighting lamp assembly, comprising at least one light source mount (5) according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] A detailed description of the Figures is given below. Therein:

[0022] FIG. 1 shows a schematic view of a light source mount (without a light source printed circuit board, and without a heat sink), which is disposed in a u-shaped strip-lighting rail of a strip-lighting lamp assembly;

[0023] FIG. 2 shows a schematic view of an end connector with which a floating connection of a light source printed circuit board to a heat sink can be provided;

[0024] FIG. 3 shows an end connector from FIG. 2 in another perspective;

[0025] FIG. 4 shows a schematic view of a light source mount having a light source printed circuit board, which is connected to a heat sink at an end region by means of an end connector shown in FIGS. 2 and 3;

[0026] FIG. 5 shows a cross section of the light source mount shown in FIG. 4.

DETAILED DESCRIPTION

[0027] FIG. 1 shows a schematic cross sectional view of a u-shaped strip-lighting rail 1, in which the various modules of a strip-lighting lamp assembly can be disposed. Only one light source mount 5 according to the invention is disposed in the u-shaped strip-lighting rail 1 shown in FIG. 1 (without a light source printed circuit board and without a heat sink).

[0028] As can be seen in FIG. 1, the light source mount 5 is snapped into the u-shaped strip-lighting rail 1 by means of numerous opposing spring elements 6 in the region of two extensions 7 of the strip-lighting rail 1. The light source mount 5 has a u-shaped cross section, adapted to the cross section of the strip-lighting rail 1, and extending above the strip-lighting rail 1.

[0029] The light source mount 5 has two cut-outs 8 in the base of the u-shaped cross section, by means of which a snap-in element of an end connector (cf. FIG. 2), or a plug-in connection assembly is formed, which is configured for the electrical connection of the light source mount 5 to a device mount (not shown) disposed beneath it.

[0030] The light source mount 5 has two opposing guide and/or bearing wall sections 9 in its base, which are adjacent to the cut-outs 8. The light source printed circuit board and the heat sink connected thereto can be disposed in the region between the guide and/or bearing wall sections 9 (cf. FIGS. 4 and 5).

[0031] Furthermore, the light source mount 5 comprises two opposing receiving elements/grooves 10 in a region below its base, into which another snap-in element of the end connector can be snapped, in order to connect the end connector to the light source mount 5.

[0032] FIG. 2 shows a schematic view of an end connector 20, which can be connected to the light source mount 5 shown in FIG. 1.

[0033] The end connector 20 comprises two opposing snap-in elements 21, which are disposed on the end connector 20 to correspond to the cut-outs 8 of the light source mount 5.

[0034] Furthermore, the end connector 20 comprises two further opposing snap-in elements 22, which are configured to snap into the receiving elements 10 provided on the light source mount 5. Moreover, the end connector 20 comprises a positioning and/or spacing element 23, which can be inserted in the region between the light source mount 5 and the strip-lighting rail 1, preferably in a form-fitting manner.

[0035] FIG. 3 shows another schematic view of the end connector 20, wherein identical parts are provided with the same reference symbols.

[0036] FIG. 4 shows a schematic view of a light source mount 5, in which a light source printed circuit board 30 (having light emitting diodes disposed thereon) is thermally connected to a heat sink 31. The light source printed circuit board 30 is connected to the heat sink 31 in a central area by means of two (adjacent) screw connections 32 in a rigid manner, and in an end region by means of an end connector 20 (i.e. by means of a lateral engagement of the snap-in element 21 of the heat sink 31 to an upper surface of the light source printed circuit board 30, such that the light source printed circuit board 30 is retained, or pressed on the heat sink 31).

[0037] As can be readily seen in FIG. 4, the floating connection in the end region allows the light source printed circuit board 30 and the heat sink 31 to move in relation to one another. Specifically, to allow movement in the longitudinal direction of the light source mount 5, the light source printed circuit board 30 and the heat sink 31 are slid under the snap-in elements 21 of the end connector 20. To allow movement in a direction transverse to the longitudinal extension of the light source mount 5, the snap-in elements 21 can be spread apart by the light source printed circuit board 30 or the heat sink 31.

[0038] Despite the possibility of relative movement to one another, the snap-in connection (or the alternative attachment by means of a screw connection explained below in greater detail) ensures that the light source printed circuit board 30 and the heat sink 31 are kept in a thermally effective connection to one another.

[0039] FIG. 5 shows a schematic cross sectional view of the light source mount 5 shown in FIG. 4, in a region of the snap-in element 21. Identical parts are again provided with the same reference symbols.

[0040] As an alternative to the lateral arrangement of the snap-in element 21 shown in the Figures, there is also the possibility of inserting snap-in elements through the light source printed circuit board 30 and through the heat sink 31. In this case, an appropriately large cut-out must be provided in the light source printed circuit board 30 and in the heat sink 31, in order to still provide a floating arrangement and enable relative movement of the heat sink 31 to the light source printed circuit board 30.

[0041] Moreover, there is the possibility of creating a floating connection in the end regions by screwing the light source printed circuit board 30 to the heat sink 31 (instead of by means of the illustrated end connector 20), wherein in this case, a loose screwing is intended, in order to still allow a relative movement of the heat sink 31 to the light source printed circuit board 30 (which is preferably supported by the use of an elongated hole, through which the screw is inserted). The screw connections can also be provided at the same positions as those provided for the snap-in elements 21 shown in the Figures, wherein in this case, the screw head laterally encompasses the heat sink 31 and the light source printed circuit board 30.

[0042] The present invention is not limited to the preferred exemplary embodiments described above, as long as it is comprised by the subject matter of the following Claims. In particular, the present invention is not limited to the use of the illustrated end connector 20. Furthermore, different connections could be used in the respective end regions (e.g. a floating connection can be created at one end by means of the end connector 20, and at the opposite end by means of a loose screw connection).