LED Lighting Heat Dissipation Enclosure Design

Solution Overview

Problem

Exposure of heat-dissipating members in outdoor LED lighting apparatuses leads to contamination, reducing their effectiveness and limiting design freedom and waterproofing capabilities.

Innovation Solution

An LED lighting apparatus design where a heat-dissipating member is enclosed within an exterior member, utilizing a medium with higher conductivity than air to enhance heat dissipation efficiency, while maintaining airtightness and protecting against dust and moisture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If heat-dissipating members are exposed to the outside for direct contact with ambient air, then heat dissipation ability is improved, but the surface becomes covered with contaminants reducing effectiveness and limiting design freedom and waterproofing

Engineering Contradiction:

Improveheat dissipation abilityVSAvoidcontaminant coverage

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The heat-dissipating member is nested inside the exterior member, with the core of the heat-dissipating member inserted into the interior space of the exterior member. This nesting structure protects the heat-dissipating member from direct exposure to contaminants while maintaining heat dissipation capability through thermal conduction to the exterior member surface.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The exterior member acts as an intermediary between the heat-dissipating member and the ambient environment. It provides a protected interface that conducts heat away from the LED module while shielding the heat-dissipating member from direct contact with contaminants, moisture, and dust in the outdoor environment.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If heat-dissipating members are enclosed within exterior member, then protection from contaminants and waterproofing is improved, but heat dissipation efficiency may be reduced

Engineering Contradiction:

Improveprotection from contaminantsVSAvoidheat dissipation efficiency

Core Design Contradiction:

Object-affected harmful factorsVSTemperature

Solution Approach 1:

The heat-dissipating member is nested inside the exterior member, with the core of the heat-dissipating member inserted into the interior space of the exterior member. This nesting structure protects the heat-dissipating member from direct exposure to contaminants while maintaining heat dissipation capability through thermal conduction to the exterior member surface.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The invention uses composite material structures where the heat-dissipating member (typically aluminum or copper) is combined with the exterior member (protective housing material). This composite structure enables both effective thermal conduction and environmental protection, achieving high heat dissipation efficiency while maintaining contamination resistance and waterproofing.

Inventive Principle:

Principle #40Composite materials

3Adaptability or versatility

If heat-dissipating members are enclosed within exterior member, then design freedom is increased, but heat dissipation paths may be limited

Engineering Contradiction:

Improvedesign freedomVSAvoidheat dissipation paths

Core Design Contradiction:

Adaptability or versatilityVSTemperature

Solution Approach 1:

The heat-dissipating member is nested inside the exterior member, with the core of the heat-dissipating member inserted into the interior space of the exterior member. This nesting structure protects the heat-dissipating member from direct exposure to contaminants while maintaining heat dissipation capability through thermal conduction to the exterior member surface.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The invention transitions from conventional direct external heat dissipation to an internal nested structure where heat is conducted through the exterior member wall to the external environment. This dimensional reorganization of heat dissipation paths enables greater design freedom while maintaining effective thermal management.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 improves heat dissipation efficiency, increases design freedom, and ensures the LED lighting apparatus remains dustproof and waterproof, extending its lifespan and performance.

Implementation Method 1

a heat-dissipating member, wherein a core of the heat-dissipating member is inserted in an interior space of the exterior member

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

utilizing a medium with higher conductivity than air to enhance heat dissipation efficiency

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP2899450B1LED lighting apparatus

Publication Date: 2021.05.19 SAMSUNG ELECTRONICS CO LTD

Figure 1
Figure 2
Figure 3~4A

AI summary

A light-emitting diode (LED) lighting apparatus (10) includes an exterior member (110) which covers a heat-dissipating member (130). Therefore, the LED lighting apparatus (10) may be dustproof and waterproof. The shape of the heat-dissipating member (130) may be modified to increase the surface area thereof and thus effectively dissipate heat.