Headlight Mounting Part With Hood Stop Vibration Isolation

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Solution Overview

Problem

Existing hood stop systems for motor vehicles face challenges in accommodating reduced template envelopes, integrating with existing engine compartment elements, and ensuring safety by preventing vibrations from causing projector flicker.

Innovation Solution

A monobloc fixing part that combines the functions of projector fixing and hood stop support, featuring a mounting part on a rigid vehicle support, a solidarity support part for the hood stop, and an overhanging design to isolate the projector from hood stop vibrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If hood stops are mounted on rigid elements of the vehicle chassis, then the hood stop provides effective support, but the vibrations from the hood stop are transmitted to the headlight projector causing flicker

Engineering Contradiction:

Improvehood stop support functionVSAvoidprojector flicker from vibrations

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The fixing part is divided into two distinct portions: a mounting portion that attaches to the rigid vehicle support and a support portion that holds the hood stop. This segmentation allows the mounting portion to handle vibrations while the support portion remains isolated, preventing vibration transmission to the projector.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The fixing part acts as an intermediary element between the rigid vehicle support and the hood stop. By positioning the support portion away from the mounting portion, it mediates the connection while isolating the projector from harmful vibrations generated by the hood stop.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a new dedicated part is created to support the hood stop, then the hood stop function is properly supported, but production and development costs increase significantly

Engineering Contradiction:

Improvehood stop support functionVSAvoidproduction and development costs

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines two functions into a single fixing part: mounting the headlight projector to the vehicle and supporting the hood stop. This merging eliminates the need for a separate dedicated hood stop support part, reducing production and development costs while maintaining proper hood stop functionality.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The fixing part is designed with multi-functionality, serving both as a mounting bracket for the projector and as a support structure for the hood stop. This universal design allows one component to fulfill multiple roles, streamlining manufacturing and reducing part complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Device complexity

If the support portion is positioned close to the mounting portion, then the fixing part structure is simplified, but the projector is exposed to vibrations from the hood stop

Engineering Contradiction:

Improvefixing part structureVSAvoidvibrations affecting projector

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The fixing part is segmented into a mounting portion and a support portion that are spatially separated. The support portion is positioned away from the mounting portion to create vibration isolation, while still being part of the same integrated component. This segmentation reduces device complexity compared to using separate parts while protecting the projector from vibrations.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP4541659A1Attachment part of a motor vehicle headlight suitable for supporting a stop of a bonnet of the vehicle and associated device for stop of the bonnet

Publication Date: 2025.04.23 RENAULT SA

Figure 1~2

AI summary

This one-piece mounting part (5) for a headlight (3) of a motor vehicle (1) includes a mounting portion (5a) for a rigid support (4) of the vehicle. The part (5) further includes a support portion (5b) integral with the mounting portion (5a) and adapted to support a stop (2) of a vehicle hood.