Vehicle Interior Light Guide Mounting for Precise Ambient Lighting
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Solution Overview
Problem
Existing interior trim parts for motor vehicles face challenges in precisely positioning and securely holding light guides while ensuring easy production and unhindered light emission.
Innovation Solution
An interior trim part design featuring an elongated light guide held by an elongated holding part connected to a dimensionally stable carrier, with a foam-like layer and skin covering, allowing for precise positioning and indirect lighting, and featuring a channel-like bend for easy assembly and secure light guide placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light guide is directly embedded in the foam layer, then the light guide can be positioned and secured, but the manufacturing tool costs increase and assembly complexity increases
Solution Approach 1:
The interior cladding part is divided into distinct functional layers: a foam layer for structural support, a holding part with channel-like bend for light guide positioning, and a skin layer for covering. This segmentation allows each layer to serve its specific function without requiring complex integrated tools, reducing manufacturing costs while maintaining positioning reliability.
Solution Approach 2:
The holding part acts as an intermediary element between the foam layer and the light guide. It provides the channel-like bend that receives and secures the light guide, eliminating the need for complex embedding tools while ensuring reliable positioning. This intermediary structure simplifies the manufacturing process.
2Reliability
If the light guide is directly embedded in the foam layer, then the light guide can be secured, but the assembly complexity and time increase
Solution Approach 1:
The holding part is pre-formed with the channel-like bend structure during the molding process, before assembly. This preliminary preparation of the positioning structure eliminates the need for time-consuming adjustments or complex assembly operations, allowing the light guide to be quickly and reliably secured.
3Manufacturing precision
If the light guide is positioned precisely, then high-quality ambient lighting is achieved, but the manufacturing complexity increases
Solution Approach 1:
The holding part provides localized precision positioning through its channel-like bend structure, while the rest of the interior cladding part maintains simple, cost-effective construction. This local quality approach achieves the necessary positioning precision without increasing overall structural complexity.
4Stability of the object's composition
If the light guide is securely held, then positioning stability is improved, but light emission may be hindered
Solution Approach 1:
The skin layer is designed as a thin, flexible covering that conforms to the holding part's channel-like bend structure. This thin film approach allows the light guide to be securely held in position while permitting light to pass through unhindered, maintaining illumination intensity.
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 enables precise and reliable positioning of the light guide, achieving high-quality ambient lighting with reduced manufacturing costs and unhindered light emission, enhancing the light appearance and ease of assembly.
Implementation Method 1
a light guide (12), to which a light source (102) can be connected and through which light can be transmitted
Data Source
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AI summary
The invention relates to an interior trim part (1) for a motor vehicle (K), comprising at least one elongate light guide (12), which extends at least in some regions along the interior trim part (1), the interior trim part (1) having at least one dimensionally stable support (20), with a foam-like layer (21) covering the dimensionally stable support (20) and with a skin (22) coating the foam-like layer (21). The invention is characterised in that the at least one light guide (12) is held in an elongate holding part (10), which is in turn connected to the dimensionally stable support (20) of the foam-like layer (21).