Motor-Driven Headlight Adjustment Mechanism for Precision Alignment
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Solution Overview
Problem
Existing adjustment devices for motor vehicle headlights lack a versatile and efficient mechanism to adjust optically relevant components, such as light sources and reflectors, to accurately align the light image, particularly in height and lateral directions, and often require manual operation with limited precision.
Innovation Solution
The adjustment device incorporates a dual-axis mechanism with a transmission element and actuating elements, allowing for both manual and electrical operation, where a second actuating element can shift the first actuating element along a parallel or non-parallel axis, enabling precise adjustment of optically relevant structural units through a sliding element that engages with the headlight components, utilizing a drive device like a servomotor for enhanced precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a manual adjustment mechanism with a rotary knob or adjusting screw is used, then the device complexity is reduced, but the manufacturing precision and adjustment precision are insufficient
Solution Approach 1:
The patent replaces the traditional manual rotary knob or adjusting screw mechanism with an electric drive unit (motor) that actuates the threaded section. This substitution of mechanical manual operation with an electrically controlled system enables precise adjustment of the optically relevant component while reducing the complexity of manual adjustment mechanisms. The motor-driven system provides controlled, repeatable, and precise positioning that manual mechanisms cannot achieve.
2Manufacturing precision
If a threaded mechanism is used for fine adjustment, then the manufacturing precision is improved, but the ease of operation is reduced
Solution Approach 1:
The patent replaces manual operation of the threaded mechanism with an electric drive unit (motor). The motor automatically actuates the threaded section to move the sliding element along the displacement axis, eliminating the need for manual rotation of knobs or screws. This provides fine adjustment precision through the threaded mechanism while maintaining ease of operation through automatic electrical control.
Solution Approach 2:
The adjustment system operates autonomously through the electric drive unit that self-actuates the threaded mechanism. The system serves itself by converting electrical signals into mechanical movement without requiring manual intervention, thereby maintaining precision while improving operational ease.
3Adaptability or versatility
If only manual adjustment is provided, then the device complexity is reduced, but the adaptability to installation deviations is insufficient
Solution Approach 1:
The adjustment device is designed with dual operation modes: manual adjustment capability and electrically automated adjustment capability. This multi-functionality allows the system to adapt to different installation scenarios and deviation types. The device can be manually adjusted for simple cases or electrically controlled for precise compensation of installation deviations, making it universally applicable to various headlight installation situations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for precise adjustment of headlight components, enabling accurate alignment of the light image, supporting both manual and electrical operation, and facilitating fine adjustments through a threaded mechanism, thereby improving the headlight's range regulation and adaptability to installation deviations.
Implementation Method 1
the guide part, which can be attached to the threaded section of the first adjusting element, is configured in combination with the threaded section to convert a rotary movement of the transmission element into a sliding movement of the sliding element along the displacement axis
Data Source
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Figure 3~4
AI summary
Adjustment device for adjusting at least one optically relevant component (701, 702) of a motor vehicle headlight, comprising: - at least one adjustment device (100, 101) arranged on a mounting body (200), with a rotatably mounted transmission element (150) and a first actuating element (300) mechanically engaged with the transmission element (150), wherein the first actuating element (300) has a threaded section (310) and an end section (320), - a coupling part (400) in which the end section (320) of the first actuating element (300) is mounted, wherein the coupling part (400) is fixed relative to the adjustment device (100, 101) during adjustment, and - a sliding element (500) which is slidably mounted on the mounting body (200) and is configured to engage the at least one optically relevant component.and a guide part (510) arranged on the sliding element (500) with a counterwind corresponding to the threaded section (310) of the first adjusting element (300), wherein the guide part (510) which can be attached to the threaded section (310) of the first adjusting element (300) is arranged in combination with the threaded section (310) to convert a rotary movement of the transmission element (150) into a sliding movement of the sliding element (500) along a displacement axis (X1).