Air Cooling LED Lamp Natural Convection Design

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Solution Overview

Problem

Existing LED lamps rely on electric fans for cooling, which consume electric energy and increase power demand, necessitating a natural cooling system to reduce electricity consumption.

Innovation Solution

The design incorporates air passages between the central tube and circular light wall, along with strategically positioned gaps and ribs, to facilitate natural air flow and cooling without the use of an electric fan, enhancing energy efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If an electric fan is used for cooling the LED lamp, then the cooling effect is improved, but electricity consumption increases

Engineering Contradiction:

Improvecooling effectVSAvoidelectricity consumption

Core Design Contradiction:

TemperatureVSUse of energy by moving object

Solution Approach 1:

The invention extracts and removes the electric fan from the cooling system, replacing active mechanical cooling with passive natural convection cooling through strategically designed air passages and openings, thereby eliminating electricity consumption while maintaining cooling effectiveness

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The cooling system is designed to be self-service through natural convection, where air passages and openings enable automatic air circulation driven by temperature differences without requiring external power sources or mechanical components

Inventive Principle:

Principle #25Self-service

2Use of energy by moving object

If natural cooling without electric fan is implemented, then electricity consumption is reduced, but cooling effectiveness may deteriorate

Engineering Contradiction:

Improveelectricity consumptionVSAvoidcooling effectiveness

Core Design Contradiction:

Use of energy by moving objectVSTemperature

Solution Approach 1:

The cooling system is segmented into multiple air passages and openings distributed throughout the lamp structure, creating multiple parallel convection paths that enhance overall heat dissipation capacity without requiring mechanical assistance

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention introduces vertical air passages that utilize buoyancy-driven natural convection in the vertical dimension, allowing hot air to rise and cool air to sink, creating effective three-dimensional air circulation patterns that improve cooling without additional energy input

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

This approach reduces electricity consumption by eliminating the need for electric fans, providing effective cooling for LED lamps while maintaining performance, thus promoting energy-saving 'green' products.

Implementation Method 1

air passages for natural cooling the lamp without using an electric fan

Methodology Applied

Scientific EffectNatural convection: Free Convection

Implementation Method 2

Cooling fins 13 for reinforced cooling of the support 4 are arranged in cavity 12

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

blown out through a cavity 12 of the support 4 upward as discharge stream 9

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS8931935B2Air cooling LED lamp

Publication Date: 2015.01.13 UNILED LIGHTING TW

AI summary

An air cooling LED lamp is disclosed. The lamp has air passages for natural air flow for cooling the lamp without using any electric fan to reduce electric energy consumption. The air passages still work for natural air cooling for the lamp when the lamp is configured either in a top down position or in a lateral position.