Motor Vehicle Light Module Holder Air Flow Gaps
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Solution Overview
Problem
Existing motor vehicle lighting and signaling devices require additional components for air circulation, increasing manufacturing costs and bulkiness due to the need for a separate air circulation duct between the air flow generator and the outer lens.
Innovation Solution
The lighting and/or signaling device incorporates a light module holder with a front part featuring a plurality of gaps to direct air flow from the heat sink directly towards the outer lens, eliminating the need for an additional duct and utilizing existing components for air circulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid air circulation duct is used to circulate air between the air flow generator and the outer lens, then air circulation is achieved, but the device becomes bulkier and manufacturing costs increase
Solution Approach 1:
The patent merges the air circulation function with the existing light module holder by incorporating gaps directly into its structure. This eliminates the need for a separate rigid air circulation duct, reducing the number of parts while maintaining effective air flow from the heat sink to the outer lens for condensation removal
Solution Approach 2:
The light module holder is designed to serve multiple functions: it holds the light module in position and simultaneously acts as an air circulation channel through its gaps. This multi-functionality eliminates the need for dedicated air circulation ducts, reducing device complexity and manufacturing costs
2Reliability
If a rigid air circulation duct is used to circulate air, then air circulation is ensured, but manufacturing costs increase due to additional parts
Solution Approach 1:
The air circulation pathway is integrated into the light module holder structure through gaps, combining multiple functions into a single component. This reduces the total number of parts that need to be manufactured and assembled, thereby lowering manufacturing costs while ensuring reliable air circulation for condensation management
3Object-affected harmful factors
If air flow is directed towards the outer lens to remove condensation, then optical performance is maintained, but additional air circulation components are required
Solution Approach 1:
The light module holder incorporates gaps that serve as air circulation channels, merging the structural support function with the air flow guidance function. This eliminates the need for separate air circulation ducts while maintaining effective air flow to the outer lens, preventing condensation without increasing device complexity
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 solution reduces manufacturing costs and bulkiness by integrating air circulation within existing parts, efficiently de-ices and removes condensation from the outer lens, and enhances heat exchange without impairing optical performance.
Implementation Method 1
an air flow generator designed to generate an air flow towards the heat sink, said air flow passing through the fins of the heat sink
Implementation Method 2
an air flow generator designed to generate an air flow towards the heat sink
Data Source
AI summary
The present invention concerns a lighting and/or signaling device (10) for a motor vehicle, said lighting and/or signaling device (10) comprising:a housing (1);an outer lens (3) designed to close the housing (1);at least one light module (5) housed inside said housing (1) comprising: at least one optical surface (9, 9′, 9″);at least one light source (7, 7′) interacting with said optical surface (9, 9′) to form a light beam;a heat sink (11) comprising a plurality of fins (13);an air flow generator (15) designed to generate an air flow (17) towards the heat sink (11), said air flow (17) passing through the fins (13) of the heat sink (11); anda light module holder (19) comprising a front part (20a) oriented toward the outer lens (3) with a plurality of gaps (21) designed to direct the air flow (17) coming from the heat sink (11) towards the outer lens (3).