Vehicle Lighting Optical Deflector Clamped by Deformable Frame
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Solution Overview
Problem
The production of vehicle light devices is complicated by the tolerances between the light source and the optical element that deflects its rays, leading to difficulties in design and assembly.
Innovation Solution
A motor vehicle light device design featuring an optical deflector surrounded by a plating element with a deformable armature and a rigid contact portion, where the armature absorbs tolerance defects, allowing for flexible positioning and assembly without additional parts, and an adjustment screw for precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the optical element and light source are fixed directly or indirectly to the housing with multiple contact elements, then the positioning precision of the optical element is improved, but the device complexity and manufacturing difficulty increase due to multiple tolerance accumulations
Solution Approach 1:
The patent extracts the function of multiple contact elements into a single plating element with deformable armature. Instead of using several separate contact points between the optical element and housing, the invention uses one integrated plating element that can deform to accommodate tolerances, thereby reducing the number of parts and tolerance accumulation points while maintaining positioning precision.
Solution Approach 2:
The patent changes the physical state of the armature from rigid to deformable. By making the armature deformable, it can adapt its shape to compensate for manufacturing tolerances in the housing and optical element, allowing precise positioning without requiring multiple rigid contact points that would accumulate tolerances.
2Manufacturing precision
If multiple contact elements are used to fix the optical element, then the positioning precision is improved, but the ease of manufacture deteriorates due to difficulty in assembling multiple parts with tight tolerances
Solution Approach 1:
The patent merges multiple contact elements into a single integrated plating element. This consolidation reduces the number of parts that need to be assembled and eliminates the need to manage multiple tolerance interfaces, significantly easing the manufacturing and assembly process while maintaining the ability to achieve precise optical element positioning.
Solution Approach 2:
By changing the armature from rigid to deformable, the invention allows a single part to perform the function of multiple rigid contact elements. This deformability enables the plating element to self-adjust during assembly, accommodating housing tolerances without requiring precision assembly of multiple separate components.
3Stability of the object's composition
If rigid contact portions are used to position the optical element, then the positioning stability is improved, but the device reliability deteriorates due to risk of damage from force concentration
Solution Approach 1:
The patent changes the mechanical property of the contact portion from rigid to deformable. The deformable armature can elastically deform under load, distributing forces over a larger area and time period, which reduces stress concentrations that could lead to damage while maintaining stable positioning of the optical element.
Solution Approach 2:
The deformable armature acts as a built-in cushion that absorbs shocks and forces before they can damage the optical element or housing. This elastic deformation capability provides beforehand protection against force concentration, reducing the risk of damage while maintaining positioning stability.
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 design simplifies the production of vehicle light devices by absorbing tolerance defects and allowing for precise adjustment of the light beam, reducing the risk of damage and improving the absorption of forces, thus enhancing the durability and efficiency of the light device.
Implementation Method 1
the armature is deformable, preferably elastically deformable
Data Source
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AI summary
The present invention relates to a motor vehicle lighting device comprising: - an optical deflector (1), - at least one support element (60), - a plate element (30) comprising a frame (36) carrying a contact portion (31), the frame at least partially surrounding the optical deflector, the contact portion being in contact with the optical deflector, the optical deflector, the support element and the plate element being arranged so that the optical deflector (1) is at least partially enclosed between the support piece (60) and the contact portion (31), and such that, along a direction (F) from said support piece towards the contact portion, the contact portion is rigid and the frame is elastically deformable.