Vehicle LED Glazing Assembly for Stable Light Positioning
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Solution Overview
Problem
Existing light-emitting diode (LED) modules for vehicle glazing face reliability issues due to inconsistent positioning relative to the interior glass sheet, leading to significant light loss.
Innovation Solution
A light-emitting diode module assembly that utilizes a support plate with lugs to apply a clipping force, ensuring the illuminating part is correctly positioned and maintained relative to the interior glass sheet, using a spring element for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a light-emitting diode module is installed in a through cylindrical opening of the interior glass sheet, then the module can be assembled with the glazing, but the positioning reliability deteriorates over time causing the module to deviate from its nominal position
Solution Approach 1:
The patent employs a spring element that provides dynamic positioning forces to actively maintain the module in its nominal position. The spring element can apply forces in multiple directions (radial and axial) to counteract any displacement tendencies, transforming a static assembly into a dynamically self-correcting system that maintains positioning reliability over time.
Solution Approach 2:
The patent introduces an intermediary positioning mechanism consisting of the spring element and interaction surfaces (first and second interaction surfaces) that mediate between the module and the glass sheet. This intermediary system provides continuous contact and force application to maintain precise positioning without requiring permanent mechanical attachment.
2Ease of operation
If the module is loosely positioned in the opening, then assembly is simple, but light transmission efficiency deteriorates due to misalignment
Solution Approach 1:
The patent implements preliminary positioning actions through the spring element that is pre-loaded to apply forces ensuring the module is correctly positioned before any operational use. The spring element's pre-compression or pre-extension state establishes the nominal position immediately upon assembly, preventing misalignment that would cause light transmission loss.
Solution Approach 2:
The patent replaces complex mechanical retention mechanisms with a simpler spring-based force application system. Instead of using clips, screws, or adhesive mechanisms, the invention uses elastic deformation of the spring element to generate positioning forces, simplifying the assembly process while maintaining precise alignment for optimal light transmission.
3Reliability
If a retention mechanism is added to maintain positioning, then positioning reliability improves, but device complexity increases
Solution Approach 1:
The patent employs a flexible spring element that can deform elastically to provide continuous positioning forces. This flexible component replaces rigid retention mechanisms, allowing the system to maintain reliability through elastic adaptation to minor variations in assembly tolerances and thermal expansion, while keeping the overall structure simple and lightweight.
Solution Approach 2:
The patent utilizes changes in the spring element's physical state (compression, extension, torsion) to generate positioning forces. By converting stored elastic potential energy into mechanical forces, the system achieves reliable positioning without requiring additional active components, motors, or control systems, thereby maintaining simplicity while improving reliability.
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
The solution provides a reliable and efficient method for assembling LED modules with glazing, ensuring consistent light transmission and reducing optical defects like halos.
Implementation Method 1
to apply said base against an inner face of said interior glass sheet, preferably all about said opening, and/or to apply said illuminating part against a bottom of said opening by spring effect
Implementation Method 2
by spring effect, preferably against the entire bottom of said opening
Data Source
AI summary
An assembly includes a glazing with an interior glass sheet having a through hole, an exterior glass sheet, and at least one intermediate plastic layer; a light-emitting diode module with a light emitting diode having an illuminating part, and a base; a support plate fixed to a face of the interior glass sheet opposite the at least one intermediate plastic layer, the support plate including several lugs extending away from the interior glass sheet and a spring element. The illuminating part is positioned in the through hole, with the base retained by the lugs, and pressed against the glazing by the spring elements.