Adjustment device for adjusting at least two optically related structural units of a motor vehicle headlight
By employing a synchronous adjustment system for the load-bearing frame driven by an adjustment triangle and a servo motor in the headlights of motor vehicles, the problems of large space requirements and inaccurate adjustment of optical related structural units have been solved, achieving a smaller structural space and higher adjustment accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZKW GRP GMBH
- Filing Date
- 2021-11-11
- Publication Date
- 2026-07-21
AI Technical Summary
Existing optical related structural unit adjustment equipment for motor vehicle headlights suffers from problems such as large space requirements and difficulty in precise adjustment.
A load-bearing frame with adjustable triangles is adopted. The load-bearing frame is synchronously adjusted through vertical and horizontal pivoting devices. Combined with servo motor drive, the structural space requirements are reduced and the adjustment accuracy is improved.
It achieves smaller structural space requirements and higher adjustment precision, meeting the high requirements of vehicle design and function.
Smart Images
Figure CN116529121B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an adjustment device for adjusting at least two optically related structural units of a motor vehicle headlight, the adjustment device comprising the following:
[0002] - At least two support frames, each designed to support at least one optically related structural unit, such as an optical module.
[0003] - Mounting member, at least two load-bearing frames are pivotally supported on the mounting member about a horizontal axis and a vertical axis, respectively.
[0004] A vertical pivoting device for simultaneously pivoting at least two load-bearing frames about their respective horizontal axes, wherein the vertical pivoting device includes a first coupling element and a first drive device, the first drive device having an adjusting arm linearly adjustable on a first axis of movement, wherein the first coupling element is hingedly connected to at least two load-bearing frames, and wherein the adjusting arm of the first drive device acts on the first coupling element and drives in the direction of the first axis of movement, such that when the first coupling element is adjusted in the direction of the first axis of movement, at least two load-bearing frames can simultaneously pivot in the same direction about their respective horizontal axes.
[0005] - A horizontal pivoting device for simultaneously pivoting at least two load-bearing frames about their vertical axes, wherein the horizontal pivoting device includes a second coupling element and a second drive device, the second drive device having an adjusting arm linearly adjustable on a second movement axis, wherein the second coupling element is hingedly connected to at least two load-bearing frames, and wherein the adjusting arm of the second drive device acts on the second coupling element and drives in the direction of the second movement axis such that when the second coupling element is adjusted in the direction of the second movement axis, at least two load-bearing frames can simultaneously pivot in the same direction about their respective vertical axes.
[0006] The present invention also relates to a lighting device having at least one adjustment device according to the invention, wherein the lighting device includes light modules each having a center of gravity, and wherein a light module is respectively disposed on a support frame, wherein the center of gravity of each light module is disposed above a corresponding fixed point bearing of the corresponding support frame in the installation position of the lighting device.
[0007] The present invention also relates to a motor vehicle headlight having at least one adjustment device according to the invention or having at least one lighting device according to the invention. Background Technology
[0008] Adjustment systems are known from the prior art and are commonly used in the headlights of motor vehicles to adjust the vertical deflection (e.g., headlight range adjustment) or horizontal deflection (basic adjustment or, for example, cornering light) of the light distribution.
[0009] In order to legally adjust the light image generated by the headlights of a motor vehicle, it is necessary to have one or more optically related structural units that can be adjusted, particularly in the height direction and / or lateral direction. Such optically related structural units may, for example, involve a light module consisting of at least one light source, at least one reflector, at least one lens, etc.; however, such optically related structural units may also involve correspondingly adjustable individual components, such as reflectors, lenses, etc.
[0010] Here, at least one optically related structural unit is typically pivotally supported in the headlight about one or more axes, such as a horizontal axis and / or a vertical axis. For example, one or more light modules are supported on a support frame, and the support frame is pivotally supported about one or two axes as described above.
[0011] The adjustment system should be able to reliably adjust the relevant components, and at the same time, minimize the space requirements of such an adjustment system so as to restrict the design of the vehicle's headlights as little as possible.
[0012] Adjustment devices for adjusting the optically related structural units of a motor vehicle's headlights, such as light sources, reflectors, and / or lenses, allow the light image produced by the headlights to match preset requirements. This allows deviations from desired preset values, which may be determined, for example, after the headlights have been installed in the motor vehicle, to be compensated for subsequently using the adjustment devices.
[0013] The typical purpose of adjusting the device is to match the illumination range of the headlights, and this technical field is particularly known by the term "headlight range adjustment" – or LWR for short.
[0014] Typically, at least one drive mechanism is provided for adjustment, which is usually manually operable. For example, the drive mechanism includes a rotating wheel or adjusting bolt whose rotational motion is converted via a suitable mechanism into linear motion of a sliding element, which is movably guided in a corresponding sliding track within the headlight housing. Adjustment points of optically related structural units, such as adjustment points of a support frame housing the structural units, are supported in the sliding element, such that the structural unit or support frame pivots as the sliding element moves. Summary of the Invention
[0015] The purpose of this invention is to provide an improved adjustment device.
[0016] The objective is achieved by the following means: each load-bearing frame has an adjustment triangle formed by a fixed-point bearing and a first adjustment point bearing and a second adjustment point bearing, wherein the load-bearing frame is hinged at the mounting member by means of the corresponding fixed-point bearing, and wherein a first coupling element acts at the first adjustment point bearing and a second coupling element acts at the second adjustment point bearing, and wherein the adjustment triangle of each load-bearing frame is located in a horizontal plane in the basic position of the load-bearing frame, and wherein when the load-bearing frame pivots from the basic position by a vertical pivoting device and / or a horizontal pivoting device, the adjustment triangle of the load-bearing frame is also located in a plane parallel to each other.
[0017] Therefore, compared to solutions known to date, structural space requirements can be reduced or designed with greater versatility. This is particularly advantageous for current headlights, as increasingly higher demands are placed on vehicle design, the surrounding technologies and functions of the headlights, and additional technologies, necessitating ever-improving utilization of existing structural space.
[0018] It should be noted that terms such as “horizontal,” “horizontal plane,” “vertical,” “orthogonal,” “above,” or “below” refer to adjustment devices or lighting devices that are correctly or prescribedly installed in the headlights of a motor vehicle, which are in the installation position of the motor vehicle.
[0019] It should be noted that the vertical axis of the load-bearing frame is vertically set in both the basic position of the load-bearing frame and the installation position of the adjustment equipment. However, when the load-bearing frame is adjusted or pivoted around the corresponding horizontal axis, the vertical axis of the load-bearing frame is no longer precisely vertical and its orientation changes. The vertical axis of the load-bearing frame is also discussed in this regard. It should also be noted that, regardless of the adjustment of the load-bearing frame itself, the vertical axis is always orthogonal to the corresponding adjustment triangle of the load-bearing frame.
[0020] It can be proposed that the first moving axis is orthogonal to the corresponding horizontal plane of the adjustment triangle of the supporting frame in the basic position, and that the second moving axis is orthogonal to the first moving axis.
[0021] It can be proposed that at least two load-bearing frames are supported on the mounting component by a fixed-point bearing, wherein the fixed-point bearing is configured as a spherical hinge.
[0022] It can be proposed that the first coupling element and / or the second coupling element be slidably guided at the mounting member.
[0023] It can be proposed that the first moving axis is a vertical axis.
[0024] It can be proposed that the second moving axis is a horizontally lying axis.
[0025] It can be proposed that the mounting components constitute the headlight housing of a motor vehicle.
[0026] It can be proposed that the first coupling element and the second coupling element are constructed as rigid bodies.
[0027] It can be proposed that at least two load-bearing frame structures be identically constructed.
[0028] It can be proposed that the adjustment triangles of at least two load-bearing frames be set in different horizontal planes.
[0029] It can be proposed that the first driving device and the second driving device constitute a servo motor.
[0030] It can be suggested that the equipment be adjusted to include exactly two load-bearing frames.
[0031] The objective is also achieved by a lighting device having at least one adjustment device according to the invention, wherein the lighting device includes light modules each having a center of gravity, and wherein a light module is respectively disposed on a support frame, wherein the center of gravity of each light module is disposed above the corresponding fixed point bearing of the corresponding support frame in the installation position of the lighting device.
[0032] Therefore, the load-bearing frame, due to its self-resetting on the fixed-point bearing or adjustment device, eliminates gaps in the system, or the corresponding "actuator" of the adjustment device is preloaded. This reduces or lowers the tolerance chain within the system, making the overall adjustment device more precise, or allowing for finer calibration of at least one optically related structural unit.
[0033] The objective is also achieved by a motor vehicle headlight having at least one adjustment device according to the invention or at least one lighting device according to the invention. Attached Figure Description
[0034] The invention will now be described in more detail with reference to the exemplary accompanying drawings. Herein lies:
[0035] Figure 1 A perspective view of an exemplary adjustment device, taken from an obliquely upward angle, is shown.
[0036] Figure 2 Show Figure 1 An exemplary adjustment device viewed from a downward angle in a stereoscopic view. Detailed Implementation
[0037] Figure 1An exemplary adjustment device 10 for adjusting at least two optically related structural units of a motor vehicle headlight is shown. The adjustment device 10 includes two substantially identical support frames 100 and 200, each designed to support at least one optically related structural unit, such as a light module. The optically related structural units or light modules are not shown in the figure for better clarity.
[0038] The adjustment device 10 also includes a mounting component 300, on which two load-bearing frames 100 and 200 are pivotally supported about horizontal axes H1 and H2 and vertical axes V1 and V2, respectively.
[0039] The adjustment device 10 additionally includes a vertical pivoting device 400 for simultaneously pivoting the two support frames 100, 200 about their horizontal axes H1, H2. The vertical pivoting device 400 includes a first coupling element 410 and a first drive device 420 configured as a servo motor, the first drive device having an adjusting arm 421 linearly adjustable on a first movement axis A1. Figure 2 The vertical pivoting device 400 can be better seen in the rear view of the adjusting device 10.
[0040] The first coupling element 410 is hinged to the two support frames 100 and 200, wherein the adjusting arm 421 of the first driving device 420 acts on the first coupling element 410 and drives it in the direction of the first moving axis A1, such that when the first coupling element 410 is adjusted in the direction of the first moving axis A1, the two support frames 100 and 200 can simultaneously pivot in the same direction about their respective horizontal axes H1 and H2.
[0041] The adjustment device 10 also includes a horizontal pivoting device 500 for simultaneously pivoting the two support frames 100, 200 about their vertical axes V1, V2. The horizontal pivoting device 500 includes a second coupling element 510 and a second drive device 520 configured as a servo motor. The second drive device has an adjusting arm 521 that can be linearly adjusted on the second movement axis A2.
[0042] The second coupling element 510 is hinged to the two support frames 100 and 200, wherein the adjusting arm 521 of the second drive device 520 acts on the second coupling element 510 and drives it in the direction of the second moving axis A2, such that when the second coupling element 510 is adjusted in the direction of the second moving axis A2, the two support frames 100 and 200 can simultaneously pivot in the same direction about their respective vertical axes V1 and V2.
[0043] It should be noted that both the first coupling element 410 and the second coupling element 510 are constructed as rigid bodies, so that the movement of the corresponding adjusting arms 421 and 521 is directly implemented through the coupling elements 410 and 510. In addition, the coupling elements 410 and 510 are slidably guided at the mounting member 300.
[0044] Furthermore, each load-bearing frame 100, 200 has adjusting triangles D1, D2, which are formed by fixed-point bearings 110a, 210a and first adjusting-point bearings and second adjusting-point bearings 110b, 210b, 110c, 210c, respectively. The load-bearing frames 100, 200 are hinged to the mounting member 300 by means of the corresponding fixed-point bearings 110a, 210a. The fixed-point bearings 110a, 210a and the first adjusting-point bearings and second adjusting-point bearings 110b, 210b, 110c, 210c are respectively configured as spherical hinges to form corresponding coupling elements 410, 510 and mounting member 300.
[0045] The first coupling element 410 operates at the first adjustment point bearings 110b and 210b, and the second coupling element 510 operates at the second adjustment point bearings 110c and 210c. The adjusting triangles D1 and D2 of each bearing frame 100 and 200 are positioned in a horizontal plane in their basic positions, with the adjusting triangles D1 and D2 located in different horizontal planes, such as... Figure 1 As can be seen.
[0046] When the supporting frames 100 and 200 pivot from their basic position via the vertical pivoting device 400 and / or the horizontal pivoting device 500, the adjusting triangles D1 and D2 of the supporting frames 100 and 200 are still located in planes that are parallel to each other.
[0047] Furthermore, in the example shown, the first moving axis A1 of the vertical pivoting device 400 is orthogonal to the corresponding horizontal planes of the adjustment triangles D1 and D2 of the support frames 100 and 200 in the basic position, wherein the second moving axis A2 of the horizontal pivoting device 500 is orthogonal to the first moving axis A1, regardless of the pivoting or adjustment of the support frames 100 and 200.
[0048] The first moving axis A1 is a vertical axis in the prescribed installation position of the adjusting device 10, while the second moving axis A2 is a horizontal axis in the prescribed installation position of the adjusting device 10.
[0049] As mentioned earlier, optical components, such as optical modules, are mounted on the support frames 100 and 200; however, these optical components are not shown in the figures. Each optical module has a center of gravity, with one optical module mounted on each support frame 100 and 200, and the center of gravity of each optical module is positioned above the corresponding fixed-point bearings 110a and 210a of the corresponding support frame 100 and 200 in the installation position of the adjustment device.
[0050] List of reference numerals
[0051] Adjust equipment 10
[0052] Load-bearing frames 100, 200
[0053] Fixed point bearings 110a, 210a
[0054] First adjustment point bearings 110b, 210b
[0055] Second adjustment point bearings 110c, 210c
[0056] Installation component 300
[0057] Vertical pivoting device 400
[0058] First coupling element 410
[0059] First drive device 420
[0060] Adjustment element 421
[0061] Horizontal pivoting device 500
[0062] Second coupling element 510
[0063] Second drive device 520
[0064] Adjustment element 521
[0065] Horizontal axes H1, H2
[0066] Vertical axes V1, V2
[0067] First moving axis A1
[0068] Second moving axis A2
[0069] Adjust triangles D1 and D2
Claims
1. An adjustment device (10) for adjusting at least two optically related structural units of a motor vehicle headlight, said adjustment device (10) comprising: - At least two support frames (100, 200), each designed to support at least one optically related structural unit. - Mounting member (300), wherein the at least two load-bearing frames (100, 200) are pivotally supported on the mounting member about horizontal axes (H1, H2) and vertical axes (V1, V2), respectively. - A vertical pivoting device (400) for simultaneously pivoting the at least two support frames (100, 200) about their respective horizontal axes (H1, H2), wherein the vertical pivoting device (400) comprises a first coupling element (410) and a first drive device (420), the first drive device having an adjusting arm (421) linearly adjustable on a first axis of movement (A1), wherein the first coupling element (410) is hingedly connected to the at least two support frames (100, 200), and wherein the adjusting arm (421) of the first drive device (420) acts on the first coupling element (410) and drives it in the direction of the first axis of movement (A1), such that when the first coupling element (410) is adjusted in the direction of the first axis of movement (A1), the at least two support frames (100, 200) can simultaneously pivot in the same direction about their respective horizontal axes (H1, H2). - A horizontal pivoting device (500) for simultaneously pivoting the at least two support frames (100, 200) about their respective vertical axes (V1, V2), wherein the horizontal pivoting device (500) includes a second coupling element (510) and a second drive device (520), the second drive device having an adjusting arm (521) linearly adjustable on a second movement axis (A2), wherein the second coupling element (510) is hingedly connected to the at least two support frames (100, 200), and wherein the adjusting arm (521) of the second drive device (520) acts on the second coupling element (510) and drives it in the direction of the second movement axis (A2), such that when the second coupling element (510) is adjusted in the direction of the second movement axis (A2), the at least two support frames (100, 200) can simultaneously pivot in the same direction about their respective vertical axes (V1, V2). Its features are, Each load-bearing frame (100, 200) has an adjustment triangle (D1, D2) formed by fixed-point bearings (110a, 210a) and a first adjustment point bearing and a second adjustment point bearing (110b, 210b, 110c, 210c), respectively. The load-bearing frames (100, 200) are hinged to the mounting member (300) by means of the corresponding fixed-point bearings (110a, 210a), and the first coupling element (410) acts on the first adjustment point bearing (110b, 210b), and the second coupling element (510) acts on the second adjustment point bearing. The adjustment triangles (D1, D2) of each of the support frames (100, 200) are arranged in a horizontal plane in the basic position of the support frame (100, 200), and the adjustment triangles of the support frame (100, 200) are also located in planes parallel to each other when the support frame (100, 200) pivots from the basic position via the vertical pivoting device (400) and / or the horizontal pivoting device (500), wherein the first coupling element and / or the second coupling element (410, 510) are slidably guided at the mounting member (300).
2. The adjustment device according to claim 1, characterized in that, The first moving axis (A1) is orthogonal to the corresponding horizontal plane of the adjustment triangle (D1, D2) of the support frame (100, 200) in the basic position, and the second moving axis (A2) is orthogonal to the first moving axis (A1).
3. The adjustment device according to claim 1 or 2, characterized in that, The fixed-point bearings (110a, 210a) are configured as spherical hinges.
4. The adjustment device according to any one of claims 1 to 3, characterized in that, The first moving axis (A1) is a vertical axis in the installation position of the adjustment device (10).
5. The adjustment device according to any one of claims 1 to 4, characterized in that, The second moving axis (A2) is a horizontally lying axis in the installation position of the adjustment device (10).
6. The adjustment device according to any one of claims 1 to 5, characterized in that, The mounting component (300) is configured as a headlight housing for a motor vehicle.
7. The adjustment device according to any one of claims 1 to 6, characterized in that, The first coupling element and the second coupling element (410, 510) are configured as rigid bodies.
8. The adjustment device according to any one of claims 1 to 7, characterized in that, The at least two load-bearing frames (100, 200) are structurally identical.
9. The adjustment device according to any one of claims 1 to 8, characterized in that, The adjustment triangles (D1, D2) of the at least two load-bearing frames (100, 200) are set in different horizontal planes in the basic position.
10. The adjustment device according to any one of claims 1 to 9, characterized in that, The first drive device and the second drive device (420, 520) are configured as servo motors.
11. The adjustment device according to any one of claims 1 to 10, characterized in that, The adjustment device comprises exactly two support frames (100, 200).
12. The adjustment device according to claim 1 or 2, characterized in that, The structural unit is an optical module.
13. A lighting device having at least one adjustment device (10) according to any one of claims 1 to 12, wherein the lighting device includes light modules having a center of gravity, and wherein a light module is respectively disposed on a support frame (100, 200), wherein the center of gravity of each light module is disposed above a corresponding fixed point bearing (110a, 210a) of the corresponding support frame (100, 200) in the installation position of the lighting device.
14. A headlight for a motor vehicle having at least one adjustment device (10) according to any one of claims 1 to 12 or having at least one lighting device according to claim 13.