Inflatable LED Lighting Tower Thermal Management

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Solution Overview

Problem

Conventional inflatable lighting towers using metal halide lamps take time to warm up and cool down, limiting their immediate usage and efficiency, whereas LED technology offers instant ON/OFF capabilities but requires effective temperature management to ensure long life and efficiency.

Innovation Solution

A lightweight LED light structure with a thermally conductive Printed Circuit Board and heat sink, integrated within an inflatable balloon supported by a stabilizing rod, utilizing air turbulence from a blower for active cooling and sound damping, and a sound damping insulator to manage temperature and noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If metal halide lamps are used in inflatable lighting towers, then high illumination intensity is achieved, but the lamps take 5-10 minutes to warm up and require cooling time before operation

Engineering Contradiction:

Improvelight outputVSAvoidwarm-up time

Core Design Contradiction:

Illumination intensityVSLoss of time

Solution Approach 1:

The patent replaces metal halide lamps with LED light sources, substituting a thermal discharge system with a solid-state electroluminescent system. This substitution eliminates the warm-up time requirement while maintaining high illumination intensity, as LEDs produce light immediately upon electrical activation without requiring thermal heating of the arc tube.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If LED technology is used instead of metal halide lamps, then instant ON/OFF capability and energy efficiency are improved, but temperature management becomes critical for longevity and efficiency

Engineering Contradiction:

Improveinstant operation capabilityVSAvoidLED operating temperature

Core Design Contradiction:

ProductivityVSTemperature

Solution Approach 1:

The patent employs the inflatable balloon structure as a pneumatic cooling system. The balloon is inflated with air that flows around the LED assembly, using forced convection to remove heat from the LED components. The air circulation created by inflating and deflating the balloon provides active cooling without requiring additional mechanical cooling devices.

Inventive Principle:

Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent changes the thermal management approach from passive heat sinks to active pneumatic cooling. By varying the inflation state of the balloon, the system dynamically adjusts air flow around the LEDs, changing the cooling parameter from static to dynamic, thereby optimizing temperature control during operation.

Inventive Principle:

Principle #35Parameter changes

3Temperature

If a blower is used to inflate the balloon and cool LEDs, then temperature control is improved, but noise generation increases

Engineering Contradiction:

ImproveLED coolingVSAvoidnoise

Core Design Contradiction:

TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a sound damping insulator as an intermediary material between the blower and the external environment. This insulator absorbs and attenuates the noise generated by the blower motor and air flow, preventing the harmful sound from propagating outward while allowing the cooling function to continue.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Ease of operation

If inflatable balloon structure is used for portability, then ease of transport is improved, but stability against winds deteriorates

Engineering Contradiction:

ImproveportabilityVSAvoidwind stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent incorporates stabilizing rods that are pre-positioned to extend from the base to the top of the tower structure. These rods are installed before the tower is subjected to wind loads, providing preliminary structural reinforcement that prevents the inflatable balloon from collapsing or toppling in windy conditions while maintaining the portable inflatable design.

Inventive Principle:

Principle #10Preliminary action

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

Enables instant and efficient LED lighting with extended lifespan, reduced energy consumption, and noise reduction, while providing stability against winds and easy portability.

Implementation Method 1

The blower may further lift the inflatable balloon along with the LED Light Structure and may control a temperature of LED array

Methodology Applied

Scientific EffectAir turbulence: Turbulence

Implementation Method 2

A lightweight LED light structure with a thermally conductive Printed Circuit Board and heat sink

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

a sound damping insulator to manage temperature and noise

Methodology Applied

Scientific EffectSound damping: Acoustic Absorption

Data Source

PatentUS11105485B2LED lighting system in inflatable tower

Publication Date: 2021.08.31 KOTHARI RAMANLAL KISHANDAS

AI summary

Disclosed is a lighting tower (100) with a Light Emitting Diode (LED) (106). The lighting tower (100) comprises a Base Unit (102), an inflatable balloon (104), a blower (108), and a stabilizing rod (114). The inflatable balloon (104) is coupled to the Base Unit (102). The LED array (106) coupled to a top end of the inflatable balloon (104) with inward facing of the LED (106) in the inflatable balloon (104). In one aspect, the blower (108) lifts up the inflatable balloon (104) with the LED array (106). In another aspect, the blower (108) simultaneously controls a temperature at a junction of the LED (106).