Vehicle Interior Light Guide Positioning for Simpler Assembly
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Solution Overview
Problem
Existing interior lighting devices for motor vehicles are complex and costly due to the diversity and number of components, making them difficult to install on vehicles with specific architectures, and there is a need for simplification to optimize installation and reduce costs.
Innovation Solution
The lighting device incorporates a positioning member configured as a light guide that serves dual functions: positioning the transparent wall on the mask and conveying light from the source to the wall, reducing the number of components and simplifying installation by forming an assembly with a light guide to route light to the transparent wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components (positioning member and light guide) are used in the lighting device, then the positioning function and light guiding function can be independently optimized, but the device complexity and number of components increases
Solution Approach 1:
The patent combines the positioning member and light guide into a single integrated component. The positioning member is configured as a light guide that simultaneously performs both positioning of the transparent wall and guiding of light from the light source to the wall, thereby reducing the number of components while maintaining both positioning accuracy and light guiding functionality
Solution Approach 2:
The positioning member is designed to serve multiple functions: it acts as both a positioning element to locate the transparent wall on the mask and as a light guide to convey light from the light source to the transparent wall. This multi-functionality reduces device complexity while maintaining reliability
2Device complexity
If the lighting device is designed with fixed architecture, then the device structure is simplified, but the adaptability to different vehicle architectures is reduced
Solution Approach 1:
The integrated positioning member/light guide assembly can be adapted to different vehicle architectures by modifying the light guiding path while maintaining the same basic structure. The component serves multiple functions and can be configured for different lighting scenarios (passenger compartment lighting, reading lights, pictogram backlighting) without requiring complete redesign
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 configuration simplifies the arrangement and reduces the number of components, making the lighting device easier to install on various vehicles, thereby optimizing the lighting system's return on investment and reducing costs.
Implementation Method 1
at least one light guide via which the light emitted by the light source is capable of being conveyed to the transparent wall
Data Source
Figure 1
AI summary
The invention concerns an interior lighting device (1) for a motor vehicle, comprising a housing (2) accommodating at least one light source (3a, 3b) mounted on an electronic control board (4), at least one mask (5) provided with at least one transparent wall (6) mounted on the mask (5) via at least one positioning member (8a, 8b) for positioning the transparent wall (6) on the mask (5), and at least one light guide (9a, 9b) via which the light (F1a, F1b) emitted by the light source (3a,3b) is capable of being conveyed towards the transparent wall (6). The at least one positioning member (8a, 8b) is configured as a light guide.