Unified Headlamp Interface Element for Versatile Mounting

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Solution Overview

Problem

Existing motor vehicle lighting systems face complexity in assembly due to the need to accommodate both headlamps with and without protective glass, requiring different mounting mechanisms which complicates manufacturing and compatibility across vehicle versions.

Innovation Solution

A common interface element is introduced, featuring indexing elements and slots that cooperate with the bumper and headlamps, regardless of the presence of protective glass, allowing for simplified assembly and compatibility with both types of headlamps by providing a unified mounting solution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different mounting mechanisms are used for headlamps with and without protective glass, then compatibility with both headlamp types is achieved, but assembly complexity increases

Engineering Contradiction:
Improvecompatibility with both headlamp typesVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single mounting structure that can accommodate both headlamps with protective glass and those without. The mounting structure includes a retention member and a support element that work together to secure both types of headlamps using the same assembly mechanism, eliminating the need for different mounting solutions for different headlamp configurations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The mounting structure is segmented into distinct functional components: a retention member for securing the headlamp to the vehicle body, and a support element for holding the protective glass when present. This segmentation allows each component to perform its specific function while working together in a unified assembly system that handles both headlamp types.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If a unified mounting structure is used for both headlamp types, then assembly complexity is reduced, but adaptability to different headlamp configurations may be compromised

Engineering Contradiction:
Improveassembly complexityVSAvoidcompatibility with both headlamp types
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The mounting structure incorporates dynamic elements that allow adjustment and adaptation during assembly. The retention member can accommodate variations in headlamp positioning and dimensions, while the support element can be configured to hold protective glass when present or simply secure the headlamp housing when glass is absent. This dynamic capability enables a single structure to adapt to different headlamp configurations without compromising assembly simplicity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Different regions of the mounting structure have specialized local properties: the retention member features gripping surfaces and positioning elements optimized for securing headlamp housings, while the support element has specific geometric features for holding protective glass. This local quality optimization ensures that each part of the unified structure performs its function effectively for both headlamp types.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3867103B1Motor vehicle comprising at least one headlamp with or without a protective lens
Publication Date: 2023.04.12 STELLANTIS AUTO SAS
  • EP3867103B1 patent drawingFigure 1~2a
  • EP3867103B1 patent drawingFigure 2b~3

AI summary

The invention relates to a motor vehicle comprising at least one front headlamp (2a), the vehicle comprising an interface element (7), the interface element comprising: - at least one aperture (70, 72) cooperating with an indexing element (28, 30) of complementary shape arranged: on a housing of the headlamp (2) or on a bodywork element such as a radiator grille when the vehicle is equipped with headlamps (2) without a protective lens; or on a protective lens (26) when the vehicle is equipped with headlamps comprising a protective lens, - at least one indexing element (70a, 72a) cooperating with an indexing element of complementary shape provided on a bumper that covers the interface element (7).