Vehicle Lighting Device Connector Fixing Interface Stops

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Solution Overview

Problem

The existing light devices in motor vehicles, where the electronic plate and connector are mounted vertically along the vehicle axis, often experience connection issues during assembly and may disconnect when the vehicle rolls, leading to potential electrical contact problems.

Innovation Solution

Incorporating a fixing interface with stops that cooperate with the connector's stops to ensure a reliable connection, along with a screwing barrel and slider mechanism for secure assembly, allowing for vertical assembly perpendicular to the vehicle axis, which simplifies the assembly process and maintains contact between the electronic plate and reflector.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the electronic plate and connector are mounted vertically along the vehicle axis, then the assembly process is simplified, but the connection reliability deteriorates due to risk of disconnection during vehicle rolling

Engineering Contradiction:

Improveassembly processVSAvoidconnection reliability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent changes the mounting orientation from vertical (along vehicle axis) to horizontal (perpendicular to vehicle axis), transforming the assembly direction to eliminate disconnection risks during vehicle rolling while maintaining assembly simplicity

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces a fixing interface with stops as an intermediary mechanism between the connector and electronic plate, providing mechanical constraint that prevents disconnection while allowing straightforward assembly through the fixing interface

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If the connector parts are connected without additional control mechanisms, then the device complexity is reduced, but the connection reliability deteriorates due to inability to verify proper connection

Engineering Contradiction:

Improvecontrol mechanismsVSAvoidconnection verification

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The fixing interface with stops provides self-verifying connection through mechanical engagement, where the stops automatically indicate proper connection without requiring additional control systems or verification mechanisms

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent uses visual indicators (such as colored elements or visible stop engagement) to provide immediate feedback on connection status, allowing operators to verify proper connection without complex control systems

Inventive Principle:

Principle #32Color changes

Data Source

PatentEP3771861B1Lighting device

Publication Date: 2022.03.16 VALEO VISION SA

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AI summary

The invention relates to a vehicle lighting device (1) comprising a reflector (10), an electronic board (11) supporting a light source (12), a connector (13) comprising two parts (130, 131), and a fixing interface (14) between said electronic board (11) and said reflector (10), characterized in that said fixing interface (14) comprises stops (140) configured to cooperate with stops (133) of one of the two parts (130, 131) of said connector (13).