Lighting device for a motor vehicle
The invention relates to an illuminating device ( 1 ) for a motor vehicle, comprising two or more light modules ( 2 ), which light modules ( 2 ) are provided to generate a common light distribution, and a common supporting body ( 3 ), on which the at least two light modules ( 2 ) are fastened, wherein at least one of the light modules ( 2 ) is mounted on the supporting body ( 3 ) so as to be pivotable about at least one axis (H, V) with respect to the supporting body ( 3 ), and wherein the at least one pivotable light module ( 2 ) is mounted on the supporting body ( 3 ) in an articulated manner by means of an articulation ( 4 ) so as to be pivotable about the at least one axis (V, H), wherein at least one prestressing device ( 5 ) is also provided, by means of which the at least one adjustable light module ( 2 ) is held in a prestressed manner on the supporting body ( 3 ) pivotably about the articulation ( 4 ).
1. An illuminating device ( 1 ) for a motor vehicle, comprising:
two or more light modules ( 2 ) that are independently operable to generate a common light distribution;
a common supporting body ( 3 ), wherein the two or more light modules ( 2 ) are fastened directly to the common supporting body ( 3 ), wherein at least one of the two or more light modules ( 2 ) is pivotally mounted on the common supporting body ( 3 ) about at least one axis (H, V) with respect to the common supporting body ( 3 );
an articulation ( 4 ) for mounting the at least one light module ( 2 ) of the two or more light modules on the common supporting body ( 3 ) in an articulated manner so as to be pivotable about the at least one axis (V, H);
at least one prestressing device ( 5 ) that places a prestress on and holds the at least one light module ( 2 ) of the two or more light modules on the common supporting body ( 3 ) pivotally about the articulation ( 4 );
at least one adjusting device ( 6 , 7 ) which acts on the at least one light module ( 2 ) of the two or more light modules, wherein an adjustment of the at least one adjusting device ( 6 , 7 ) displaces the at least one light module ( 2 ) of the two or more light modules at a point of action of the at least one adjusting device ( 6 , 7 ) substantially against a direction of the prestress or in a direction of the presstress when the at least one adjusting device is released and therefore the at least one light module ( 2 ) of the two or more light modules is pivoted about a connection line (V, H) running through the articulation ( 4 ) and arranged normal to the connection line between the articulation ( 4 ) and the at least one adjusting device ( 6 , 7 );
wherein each of the two or more light modules ( 2 ) has a heat sink ( 24 );
wherein the articulation ( 4 ) consists of a ball ( 4 a ) and an indentation or ball socket ( 4 b ) in which the ball ( 4 a ) is rotatably mounted, wherein the ball ( 4 a ) is attached to the heat sink ( 24 ), wherein the indentation or ball socket ( 4 b ) is disposed on the common supporting body ( 3 );
wherein the at least one prestressing device holds together the common supporting body ( 3 ) and the heat sink ( 24 ), wherein the at least one prestressing device ( 5 ) consists of a screw ( 50 ) and a spring ( 52 ), wherein the screw ( 5 ) is mounted rotatably on the at least one light module ( 2 ) of the two or more light modules;
wherein the screw ( 50 ) has a mating thread that engages with a thread directly in the heat sink ( 24 ) or in an inner thread of a nut ( 2 b ) that is arranged fixedly in the heat sink ( 24 );
wherein the screw ( 50 ) is passed through a bore ( 3 a ) in the common supporting body ( 3 ), wherein either:
the screw ( 50 ) is passed through a bushing ( 51 ) that is arranged in the bore ( 3 a ) in the common supporting body ( 3 ), or
the screw ( 50 ) is formed as a stepped screw,
and therefore the screw ( 50 ) is supported on the heat sink ( 24 ); and
wherein the spring ( 52 ) is fixed between the common supporting body ( 3 ) and a screw head ( 50 a ) of the screw ( 50 ) and is tensioned as the screw ( 50 ) is tightened, and therefore the ball ( 4 a ) is pressed into the indentation or socket ( 4 b ).
2. The illuminating device according to claim 1 , wherein the at least one light module ( 2 ) of the two or more light modules is mounted pivotably about two axes (V, H).
3. The illuminating device according to claim 2 , wherein the two axes (V, H) are arranged normal to one another.
4. The illuminating device according to claim 2 wherein a second adjusting device ( 6 , 7 ) is provided, by means of which the at least one light module ( 2 ) of the two or more light modules is pivotable about the second axis (V, H).
5. The illuminating device according to claim 1 , wherein an axis (H) runs horizontally in the installed position of the illuminating device ( 1 ).
6. The illuminating device according to claim 1 , wherein an axis (V) runs vertically in the installed position of the illuminating device ( 1 ).
7. The illuminating device according to claim 1 , wherein the articulation ( 4 ) is a ball joint.
8. The illuminating device according to claim 1 , wherein the at least one adjusting device ( 6 , 7 ) is formed as a screw ( 6 a , 7 a ) which is mounted rotatably in the common supporting body ( 3 ) and acts via a stop region ( 6 b , 7 b ) on a stop face ( 2 a ) of the at least one light module ( 2 ) of the two or more light modules.
9. The illuminating device according to claim 1 , wherein the least one adjusting device ( 6 , 7 ) for pivoting the at least one light module ( 2 ) of the two or more light modules about a pivot axis (H, V) is arranged at a defined normal distance from said pivot axis (H, V).
10. The illuminating device according to claim 1 , wherein with n light modules ( 2 ) of the two or more light modules, n being an integer and n>1, at least (n−1) light modules ( 2 ) of the two or more light modules are pivotable about at least one axis.
11. A vehicle headlight comprising at least one illuminating device according to claim 1 .
12. The illuminating device according to claim 1 , wherein the at least one adjusting device ( 6 , 7 ) is mounted on the common supporting body ( 3 ).
13. The illuminating device according to claim 1 , wherein the ball ( 4 a ) is a hemisphere or a partial sphere.
14. The illuminating device according to claim 4 , wherein the least one adjusting device ( 6 , 7 ) comprises two adjusting devices ( 6 , 7 ), and wherein the two adjusting devices ( 6 , 7 ), the at least one prestressing device ( 5 ), and the articulation ( 4 ) form a quadrilateral.
15. The illuminating device according to claim 14 , wherein the at least one prestressing device ( 5 ) is arranged in a fourth corner of the quadrilateral.
16. The illuminating device according to claim 9 , wherein the at least one adjusting device ( 6 , 7 ) lies substantially on an axis (V, H) normal to the pivot axis (H, V) and running through the articulation ( 4 ).
17. The illuminating device according to claim 10 , wherein the at least (n−1) light modules ( 2 ) of the two or more light modules are pivotable about two axes ( 6 , 7 ) of the at least one axis (H, V).
18. The illuminating device according to claim 10 , wherein all n light modules of the two or more light modules are pivotable about the at least one axis.
19. The illuminating device according to claim 18 , wherein all n light modules of the two or more light modules are pivotable about two axes ( 6 , 7 ) of the at least one axis (H, V).