阅读说明：本技术 用于机动车辆前灯的照明设备 (Lighting device for a motor vehicle headlight ) 是由 P·斯塔德勒 T·艾兴格尔 M·戈特曼 H·普福卢格尔 M·古特门施 于 2020-01-15 设计创作，主要内容包括：用于机动车辆前灯的照明设备(10),所述照明设备包括：-围绕第一枢转轴(Y1)可枢转地安装的第一光学部件(100),-围绕第二枢转轴(Y2)可枢转地安装的第二光学部件(200),其中第一和第二枢转轴(Y1、Y2)彼此平行分布,以及-至少一个调节装置,用于将第一和第二光学部件(100、200)围绕它们的枢转轴(Y1、Y2)同时枢转,所述调节装置包括耦合元件(310)和驱动装置(320),所述驱动装置具有可线性调整到移位轴(X1)中的调整臂(321),其中所述移位轴(X1)与第一和第二枢转轴(Y1、Y2)正交,并且其中所述耦合元件(310)经由第一连接点(311)与所述第一光学部件(100)铰接并经由第二连接点(312)与所述第二光学部件(200)铰接,并且其中所述驱动装置(320)的调整臂(321)在第三连接点(313)处可移动地与所述耦合元件(310)连接,并且在移位轴(X1)的方向上驱动所述耦合元件,其中所述第一枢转轴(Y1)位于水平面(H)中,并且所述第一连接点(311)到所述水平面(H)的法向距离不同于所述第三连接点(313)到所述水平面(H)的法向距离。(Lighting device (10) for a motor vehicle headlight, the lighting device comprising: -a first optical component (100) pivotably mounted about a first pivot axis (Y1), -a second optical component (200) pivotably mounted about a second pivot axis (Y2), wherein the first and second pivot axes (Y1, Y2) are distributed parallel to each other, and-at least one adjustment device for simultaneously pivoting the first and second optical components (100, 200) about their pivot axes (Y1, Y2), the adjustment device comprising a coupling element (310) and a drive device (320) having an adjustment arm (321) linearly adjustable into a displacement axis (X1), wherein the displacement axis (X1) is orthogonal to the first and second pivot axes (Y1, Y2), and wherein the coupling element (310) is articulated with the first optical component (100) via a first connection point (311) and with the second optical component (200) via a second connection point (312), and wherein an adjusting arm (321) of the drive device (320) is movably connected with the coupling element (310) at a third connection point (313) and drives the coupling element in the direction of a displacement axis (X1), wherein the first pivot axis (Y1) lies in a horizontal plane (H) and the normal distance of the first connection point (311) to the horizontal plane (H) is different from the normal distance of the third connection point (313) to the horizontal plane (H).)

1. A lighting device (10) for a motor vehicle headlight, the lighting device comprising:

-a first optical component (100) pivotably mounted about a first pivot axis (Y1),

-a second optical member (200) pivotably mounted about a second pivot axis (Y2), wherein the first and second pivot axes (Y1, Y2) are distributed parallel to each other, and

-at least one adjustment device for simultaneously pivoting the first and second optical components (100, 200) about their pivot axes (Y1, Y2), the adjustment device comprising a coupling element (310) and a drive device (320) having an adjustment arm (321) linearly adjustable into a displacement axis (X1), wherein the displacement axis (X1) is orthogonal to the first and second pivot axes (Y1, Y2), and wherein the coupling element (310) is articulated with the first optical component (100) via a first connection point (311) and with the second optical component (200) via a second connection point (312), and wherein the adjustment arm (321) of the drive device (320) is movably connected with the coupling element (310) at a third connection point (313) and drives the coupling element in the direction of the displacement axis (X1),

it is characterized in that the preparation method is characterized in that,

the first pivot axis (Y1) lies in a horizontal plane (H), and the normal distance of the first connection point (311) to the horizontal plane (H) is different from the normal distance of the third connection point (313) to the horizontal plane (H).

2. The lighting apparatus according to claim 1,

the normal distance of the third connection point (313) to the horizontal plane (H) is smaller than the normal distance of the first connection point (311) to the horizontal plane (H).

3. A lighting device as claimed in claim 1 or 2, characterized in that the displacement axis (X1) is parallel to the horizontal plane (H).

4. The lighting device according to any one of claims 1 to 3, characterized in that the coupling element (310) is configured as an elongated coupling element (310), wherein a longitudinal axis of the coupling element (310) is preferably parallel to the displacement axis (X1).

5. A lighting device as recited in any one of claims 1-4, characterized in that the coupling element (310) is constructed to be rigid.

6. A lighting device as claimed in any one of claims 1 to 5, characterized in that the third connection location (313) connecting the adjusting arm (321) of the drive means (320) with the coupling element (310) is arranged at an end of the coupling element (310).

7. The lighting device according to any one of claims 1 to 6, characterized in that a first or a second connection site (311, 312) is arranged at an end of the coupling element (310), in particular at an end of the coupling element (310) opposite to the third connection site (313).

8. A lighting device as claimed in any one of claims 1 to 7, characterized in that the normal distance of the first connection point (311) to the first pivot axis (Y1) of the first optical component (100) is the same as the normal distance of the second connection point (312) to the second pivot axis (Y2) of the second optical component (200).

9. A lighting device as claimed in any one of claims 1 to 8, characterized in that the first and/or the second connection location (311, 312) is constructed as a ball joint or in the manner of a ball joint.

10. A luminaire as claimed in any one of claims 1 to 9, characterized in that the first and second pivot axes (Y1, Y2) are located in a common horizontal plane.

11. A luminaire as claimed in any one of claims 1 to 10, characterized in that the optical component (100, 200) is a lens, a reflector or a light module.

12. A lighting device as claimed in any one of claims 1 to 10, characterized in that the optical components (100, 200) each have a carrier frame on which a corresponding connection site (311, 312, 313) is arranged.

13. The lighting device according to any one of claims 1 to 12, characterized in that the third connection site (313) allows at least a partial vertical movement of the coupling element (310) on the adjustment arm (321).

14. A motor vehicle headlight with at least one lighting device according to any one of claims 1 to 13.

Technical Field

The invention relates to a lighting device for a motor vehicle headlight, comprising:

a first optical component pivotably mounted about a first pivot axis,

-a second optical member pivotably mounted about a second pivot axis, wherein the first and second pivot axes are distributed parallel to each other, an

At least one adjusting device for simultaneously pivoting the first and second optical components about their pivot axes, comprising a coupling element and a drive device having an adjusting arm which is linearly adjustable into a displacement axis, wherein the displacement axis is orthogonal to the first and second pivot axes, and wherein the coupling element is articulated with the first optical component via a first connection point and with the second optical component via a second connection point, and wherein the adjusting arm of the drive device is movably connected with the coupling element at a third connection point and drives the coupling element in the direction of the displacement axis.

The invention further relates to a motor vehicle headlight having at least one lighting device according to the invention.

Background

In motor vehicle headlights, different lighting functions are usually arranged, for example, on different carrier frames, since the installation space that is usually predefined is predefined by the corresponding headlight design. During the adjustment of the illumination range, it is usually intended to move or pivot the two carrier frames or the different optical components together, wherein these optical components are mechanically connected to one another by means of coupling elements. In the case of such an adjustment by means of the coupling described above, a largely unobstructed adjustment mechanism is sought, which should also be subjected to incidental vibrations and should not tilt.

In order to be able to meet these requirements, in particular the distance between the adjusting lever, i.e. the pivot axis, and the corresponding point of action for pivoting the optical component should be designed to be as large as possible, which is not always possible due to the predefined installation space or headlight design already mentioned above, so that a compromise has to be made.

Disclosure of Invention

It is an object of the present invention to provide an improved lighting device for a motor vehicle headlight.

This object is achieved in that the first pivot axis lies in a horizontal plane and the normal distance of the first connection point to the horizontal plane is different from the normal distance of the third connection point to the horizontal plane.

Thereby, the installation space requirements can be reduced or variably designed compared to previously known solutions. This is particularly advantageous for current headlights, since the existing installation space must be utilized better and better due to the increasing requirements for vehicle design, surrounding technology and functionality, and additional technology in the headlight.

In the solution according to the invention, the guide in the housing, which is partially necessary in the known solutions for coupling elements, can be dispensed with. The effort involved in precise component and material coordination is thereby also reduced, and problems associated with such coordination can be avoided.

Preferably, the drive means is arranged to move or displace the elongated coupling element back and forth linearly in the direction of its longitudinal extension. Since the coupling element is located outside the two first and second pivot axes of the optical components which are substantially parallel to each other, this displacement movement is converted into a pivoting movement of the two optical components about their pivot axes. The coupling element is subject to a displacement perpendicular to its longitudinal extent, although usually small, since the connection points of the optical components to the coupling element describe a circular arc about the pivot axis of the optical components.

In order to make possible a corresponding relative movement of the coupling element with respect to the at least one drive, it can therefore be provided that the at least one drive is connected to the coupling element so as to be movable via a drive connection.

In one specific implementation of the invention, it can be provided that the two axes which are substantially parallel to one another are horizontal axes which are preferably substantially perpendicular to the optical axis of the optical component.

The optical members can pivot up and down about these horizontal axes, and thereby the illumination ranges of the light beams respectively generated with the optical members can be adjusted.

It should be noted that terms such as "horizontal", "vertical", "upper" or "lower" relate to a lighting device which is correctly mounted into a motor vehicle headlight which is located in a mounted position in the motor vehicle.

In order to achieve the above-mentioned deflection of the elongated coupling element (due to the circular movement of the connection point), the connection point is configured such that the coupling element can be pivoted relative to the optical component and the adjustment arm assigned to the connection point about axes which run parallel to the pivot axis of the optical component.

In principle, the drive for simultaneously pivoting the two optical components about their parallel axes may be the drive to be operated manually. However, for automatic adjustment it may be advantageous if the drive is a linear drive, in particular a linear motor, preferably an electric linear motor.

In a preferred embodiment of the invention, it can be provided that the normal distance of the third connection point to the horizontal plane is smaller than the normal distance of the first connection point to the horizontal plane.

Provision can be made for the displacement axis to be parallel to the horizontal plane.

It may be advantageous if the coupling element is designed as an elongated coupling element, wherein the longitudinal axis of the coupling element is preferably parallel to the displacement axis.

It can also be provided that the coupling element is rigid.

Provision may be made for a third connection point, which connects the actuating arm of the drive device to the coupling element, to be arranged at an end of the coupling element.

Furthermore, it can be provided that the first or second connection point is arranged at an end of the coupling element, in particular at an end of the coupling element opposite the third connection point.

Advantageously, the normal distance of the first connection point to the first pivot axis of the first optical component may be the same as the normal distance of the second connection point to the second pivot axis of the second optical component.

Thereby, the two optical components pivot by the same angular magnitude when pivoting about their parallel pivot axes.

It can be provided that the first and/or the second connection point is designed as a ball joint or in the manner of a ball joint.

It may be provided that the first and second pivot axes are located in a common horizontal plane.

It can furthermore be provided that the optical component is a lens, a reflector or an optical module.

It can be provided that the optical components each have a carrier frame on which the corresponding connection points are arranged.

Furthermore, it can be provided that one and/or both optical components comprise a plurality of light modules, which are arranged on one carrier frame for each optical component.

It can advantageously be provided that the third connection point allows an at least partial vertical movement of the coupling element on the actuating arm.

According to the invention, this object is also achieved by a motor vehicle headlight comprising at least one lighting device according to the invention.

Drawings

The invention is explained in more detail below on the basis of exemplary figures. Therein, the

Figure 1 shows an exemplary lighting device in a motor vehicle headlight housing in a perspective view,

fig. 2 illustrates the lighting device of fig. 1 in a side view.

Detailed Description

Fig. 1 shows an exemplary lighting device 10 for a motor vehicle headlight, which lighting device 10 has a first optical component 100 which is pivotably mounted about a first pivot axis Y1 and a second optical component 200 which is pivotably mounted about a second pivot axis Y2, wherein the first and second pivot axes Y1, Y2 are distributed parallel to each other.

The optical components 100, 200 can be, for example, lenses, reflectors or entire light modules, wherein the optical components 100, 200 each have a carrier frame on which the light module is arranged or fastened. In the examples shown in the figures, only the carrier frame of the optical component 100, 200 is shown for the sake of clarity, wherein the term "optical component" is used continuously below.

Furthermore, the lighting device 10 comprises an adjusting device for pivoting the first and second optical components 100, 200 simultaneously about their pivot axes Y1, Y2, which adjusting device has a coupling element 310 and a drive device 320 with an adjusting arm 321 which is linearly adjustable into the displacement axis X1.

The displacement axis X1 is arranged here orthogonally to the first and second pivot axes Y1, Y2, wherein the coupling element 310 is articulated with the first optical component 100 via a first connection point 311 and with the second optical component 200 via a second connection point 312, and wherein the actuating arm 321 of the drive device 320 is movably connected with the coupling element 310 at a third connection point 313 and drives the coupling element 310 in the direction of the displacement axis X1.

First and second connection points 311, 312 are each arranged at opposite ends of the coupling element 310, wherein a third connection point 313, which connects the actuating arm 312 of the drive 320 to the coupling element 310, is arranged at the end at which the first connection point 311 is arranged, wherein the connection points 311, 312, 313 are each embodied as ball joints.

The coupling element 310 is elongated and is designed as a rigid body, the longitudinal axis of the coupling element 310 being arranged parallel to the displacement axis X1.

As can be seen from fig. 1 and 2, the first pivot axis Y1 lies in an imaginary horizontal plane H, wherein the normal distance of the third connection location 313 to the horizontal plane H is smaller than the normal distance of the first connection location 311 to the horizontal plane H. Further, the displacement axis X1 is parallel to the horizontal plane H.

It can also be seen in fig. 2 that the normal distance of the first connection point 311 to the first pivot axis Y1 of the first optical member 100 is the same as the normal distance of the second connection point 312 to the second pivot axis Y2 of the second optical member 200. Furthermore, in the example shown, the first and second pivot axes Y1, Y2 are located in a common horizontal plane H.

Fig. 2 also shows an initial position of the optical component 100, 200, in which the drive 320 is arranged to move or move the elongated coupling element 310 back and forth linearly in the direction of its longitudinal extension or in the direction of the displacement axis X1. Since the coupling element 310 is located between the two mutually parallel first and second pivot axes Y1, Y2 of the optical components 100, 200, this displacement movement is converted into a pivoting movement of the two optical components about their pivot axes Y1, Y2. Here, the coupling element 310 itself undergoes a displacement perpendicular to its longitudinal extension, although usually slight, since the connection point 311, 312 of the optical component 100, 200 with the coupling element 310 describes a circular arc about the pivot axis Y1, Y2 of the optical component 100, 200.

In order to enable a corresponding relative movement of the coupling element 310 with respect to the at least one drive means 320, which is fixed such that a vertical movement is not possible, the third connection point 313 is arranged such that an at least partial vertical movement of the coupling element 310 at the adjustment arm 321 is possible.

Furthermore, fig. 2 shows that, for connection to the first optical component 100 or to the carrier frame of the first optical component 100, the coupling element 310 has an adjusting screw at a first connection point 311, which is connected to the carrier frame in the manner of a ball joint. The adjusting screws are screwed into the coupling elements 310 using a thread, wherein fine adjustment can be carried out manually by means of said adjusting screws in order to precisely adjust the orientation or the angular deflection of the respective carrier frame relative to the horizontal plane H.

It can also be provided that the other connecting points 311, 313 are also realized by means of adjusting screws, with which fine adjustment is possible.

List of reference numerals

10

100. first optical component

200. second optical component

310 coupling element

311 first connection site

312 second connection site

313 of a third connection site

320 driving device

321. adjusting arm

Horizontal plane

Y1 first pivot axis

Y2 second pivot axis

X1.