Flexible LED Lighting Module Hook Coupling for Vehicle Vibration

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Solution Overview

Problem

LED lighting modules in vehicles often experience separation due to reduced adhesion, leading to defects and potential damage from bending or vibration, and there is a need for improved heat dissipation and light efficiency.

Innovation Solution

A lighting device with a flexible LED module, a coupling member featuring a hook-type design, and a bracket with a receiving groove and hook part to securely attach the module, using a metal material for heat dissipation and a connector with a hook part to prevent separation, along with a receiving part to stabilize the module.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If adhesive coupling is used to attach the LED lighting module to the vehicle, then the installation process is simple, but the adhesion force is reduced causing separation defects

Engineering Contradiction:

Improveinstallation simplicityVSAvoidadhesion force

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces the chemical adhesion mechanism (adhesive) with a mechanical coupling system consisting of a coupling member with hook parts that engage with the bracket. This mechanical engagement provides reliable connection strength while maintaining installation simplicity through the snap-fit design of the hook parts.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The coupling member is divided into distinct functional parts: a body part for mounting the lighting module and hook parts for engaging the bracket. This segmentation allows each part to perform its specific function optimally - the body part provides mounting surface while the hook parts provide secure engagement with the bracket.

Inventive Principle:

Principle #1Segmentation

2Strength

If the LED lighting module is rigidly fixed to prevent separation, then connection strength is improved, but the module cannot accommodate bending and shape variations

Engineering Contradiction:

Improveconnection strengthVSAvoidshape accommodation

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The patent employs a flexible substrate that can bend and deform to accommodate different mounting surfaces and shapes. This flexible substrate maintains electrical connections while adapting to the required geometry, allowing the rigid LED components to remain securely mounted while the overall assembly conforms to various shapes.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The coupling system allows for dynamic adjustment during installation - the hook parts can be inserted and engaged to provide secure fixation, while the flexible substrate simultaneously adapts to the mounting surface shape. This dynamic combination of rigid coupling and flexible adaptation resolves the contradiction between strength and adaptability.

Inventive Principle:

Principle #15Dynamics

3Reliability

If the coupling member is positioned to secure the module, then separation is prevented, but heat dissipation from the light emitting device is reduced

Engineering Contradiction:

Improvemodule stabilityVSAvoidheat dissipation

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The patent applies local quality by positioning the coupling member and its hook parts away from the light emitting device's heat generation zone. The coupling member is located at the periphery or back of the module, providing secure mechanical engagement while leaving the central heat-generating LED components exposed for effective thermal management and light emission.

Inventive Principle:

Principle #3Local quality

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

The solution effectively prevents separation and damage to the LED module, enhances heat dissipation, and maximizes light efficiency by maintaining the module's shape and alignment, while reducing light loss and improving assemblability.

Implementation Method 1

The coupling member may be disposed on the lower portion of the lighting module corresponding to the light emitting device and may include a metal material

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11287114B2Lighting device

Publication Date: 2022.03.29 LG INNOTEK CO LTD

AI summary

A lighting device may comprise: a flexible lighting module having a light emitting device; a coupling member arranged on the lower portion of the lighting module; and a bracket comprising a receiving groove in which the lighting module is received and having a coupling hole formed therein such that the coupling member is inserted and coupled thereto.