LED Illuminating Module With Flexible Sealing And Integrated Heat Dissipation

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Solution Overview

Problem

Conventional LED street illuminating apparatuses face challenges in assembly time, component displacement, moisture invasion, and heat dissipation efficiency due to delicate components and limited heat sink area, leading to reduced lifespan and performance.

Innovation Solution

The design incorporates a cover body with through holes, flexible elements made of rubber for heat absorption and moisture prevention, and a heat conducting layer, along with a light-emitting component on a circuit board, where the flexible element and lens elements are positioned to secure components and enhance heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional LED illuminating apparatus uses multiple delicate components (cover body, lens, light emitting diodes, heat dissipating fins), then the illumination function is achieved, but the assembling and positioning time increases and labor is wasted

Engineering Contradiction:
Improveassembling speedVSAvoidnumber of components
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate components (cover body, lens, light emitting diodes, heat dissipating fins) into an integrated module where the lens is directly formed as part of the cover body structure, and the light emitting diodes are mounted directly on the heat dissipating fins without requiring separate mounting brackets or positioning fixtures. This merging reduces the number of assembly steps and positioning operations required.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover body is designed to serve multiple functions simultaneously: it acts as the structural housing, the lens for light distribution, the mounting platform for light emitting diodes, and the heat dissipating structure. This multi-functionality eliminates the need for separate dedicated components for each function, thereby reducing assembly complexity and time.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If conventional LED illuminating apparatus uses separate components for light emitting diodes and heat dissipating fins, then the illumination function is achieved, but the internal components are easily displaced due to external force or impact

Engineering Contradiction:
Improvecomponent stabilityVSAvoidcomponent arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The light emitting diodes are mounted directly on the heat dissipating fins, which are integrated into the cover body structure. This direct mounting eliminates intermediate mounting brackets or positioning fixtures that could become displaced. The light emitting diodes and heat dissipating fins form a unified assembly that resists displacement from external forces.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a flexible sealing structure (thin film or shell) between the internal components and the external environment. This flexible seal protects the light emitting diodes and heat dissipating fins from displacement while maintaining the structural integrity of the module under external forces.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If conventional LED illuminating apparatus allows moisture exposure, then the structure is simple, but moisture invades into the internal components causing short circuit or breakage

Engineering Contradiction:
Improveprotection against moistureVSAvoidsealing structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs a flexible sealing structure (thin film or shell) that encloses the internal components (light emitting diodes, circuit board, heat dissipating fins) to prevent moisture invasion. This seal maintains protection against moisture while allowing the overall structure to remain relatively simple and flexible for installation.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent introduces a sealing layer or protective film as an intermediary between the internal components and the external moist environment. This intermediary layer blocks moisture from reaching the light emitting diodes and circuit board while allowing heat dissipation and maintaining the structural simplicity of the module.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Illumination intensity

If high power light emitting diodes are used to provide sufficient light, then the illumination intensity is improved, but the temperature increases and heat dissipation efficiency decreases

Engineering Contradiction:
Improvelight outputVSAvoidheat generation
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

The patent combines the light emitting diodes with the heat dissipating fins in a unified structure where the light emitting diodes are mounted directly on the fins. This integration ensures that the heat generated by the light emitting diodes is immediately transferred to the fins for dissipation, preventing heat accumulation while maintaining high illumination intensity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a thermal conductive material or thin film layer between the light emitting diodes and the heat dissipating fins to enhance heat transfer. This thermal interface material improves heat dissipation efficiency while allowing the high power light emitting diodes to operate at high illumination intensity without excessive temperature rise.

Inventive Principle:
Principle #30Flexible shells and thin films

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 configuration reduces assembly time, prevents moisture invasion, improves heat dissipation efficiency, and prolongs the lifespan of LED illuminating apparatuses by securely positioning components and effectively managing heat.

Implementation Method 1

flexible elements made of rubber for heat absorption

Methodology Applied
Scientific EffectHeat absorption: Absorption (physical)

Implementation Method 2

heat conducting layer

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

a plurality of lens elements... the lights emitted from the light emitting diodes are outputted through the lens elements respectively

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS8858024B2Illuminating apparatus and illuminating module
Publication Date: 2014.10.14 DELTA ELECTRONICS INC(CN)
  • US8858024B2 patent drawing
  • US8858024B2 patent drawing
  • US8858024B2 patent drawing

AI summary

An illuminating module includes a cover body, a plurality of lens elements, a flexible element and a light-emitting component. The cover body has a plurality of first through holes. The lens elements are opposite to the first through holes, respectively, and the size of each lens element is made compatible with the size of each first through hole. The lens elements are disposed between the flexible element and the cover body. The light-emitting component has a circuit board and a plurality of light emitting diodes. The light emitting diodes are disposed on the circuit board and opposite to the lens elements, respectively. The lights emitted from the light emitting diodes are outputted through the lens elements respectively.