Headlight Light Module Joint Socket for Vibration-Stable Adjustment
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Solution Overview
Problem
Existing motor vehicle headlight illumination devices require additional components and complex fastening mechanisms due to manufacturing tolerances, leading to potential screw loosening under vibrations.
Innovation Solution
The illumination device incorporates a bearing device with first and second bearing shells forming a joint socket to secure the screw head of adjustment screws, eliminating the need for additional components and ensuring the screws are not displaced along their longitudinal axis, using an adjustment triangle system with counter-threaded elements on the support frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If additional components and complex fastening mechanisms are used to accommodate manufacturing tolerances, then the illumination device can be assembled, but the device complexity and manufacturing costs increase
Solution Approach 1:
The patent merges the bearing device and fastening mechanism into a single integrated structure. The bearing device comprises a bearing housing with an integrated bearing surface and fastening thread, eliminating the need for separate bearing components and fastening elements. This integration reduces the number of parts while maintaining the ability to accommodate manufacturing tolerances and provide secure fastening.
2Manufacturing precision
If additional components are used for fastening, then manufacturing tolerances can be accommodated, but manufacturing costs increase
Solution Approach 1:
The bearing device integrates multiple functions into a single component: the bearing housing provides tolerance accommodation through its bearing surface geometry, while the integrated fastening thread provides secure attachment. This eliminates the need for multiple separate components, reducing both manufacturing complexity and cost while maintaining the ability to handle manufacturing tolerances.
3Reliability
If screws are firmly mounted to prevent loosening under vibrations, then reliability is improved, but the fastening mechanism becomes more complex
Solution Approach 1:
The bearing device integrates the fastening function directly into the bearing structure. The bearing housing contains an integrated fastening thread that securely anchors the adjustment screw, preventing loosening under vibrations. This integrated design achieves reliable vibration resistance without requiring additional complex fastening mechanisms or components.
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 reduces manufacturing complexity and costs by avoiding additional components, enhancing the mechanical stability of the light module against vibrations, and allowing for precise adjustment of the light module's orientation within the headlight.
Implementation Method 1
a heat sink (300) in thermal contact with the at least one light source (110) and being set up to dissipate heat from the light source (110)
Data Source
AI summary
An illumination device for a motor vehicle headlight, which illumination device (10) comprises:a light module (100) comprising:at least one light source (110), a primary optics (200), a heat sink (300), anda holding body (400) set up to hold the primary optics (200) in their position, the holding body (400) and the heat sink (300) being connected to one another by means of a fastening means (500),and a support frame (700) on which the light module (100) is fastened via an adjustment screw (800) which comprises a screw head (810) and a screw section along a longitudinal axis (A), which screw head (810) is mounted in an articulated manner on the light module (100), the light module (100) comprising a bearing device (900), which bearing device (900) comprises a first and a second bearing shell (910, 920) which together form a joint socket, the first bearing shell (910) being arranged on the holding body (400) and the second bearing shell (920) being arranged on the heat sink (300), and the bearing device (900) being set up to support the screw head (810), and the joint socket enclosing the screw head (810) such that the at least one adjustment screw (800) is secured against displacement in the direction of its longitudinal axis (A).