Modular LED Radiator with Integrated Electrical Buses

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Solution Overview

Problem

Designing modular solid state light emitting devices for high luminance applications poses challenges in flexibility and efficient power supply to arrays of varying sizes and configurations, particularly in street lighting where multiple devices are required to achieve desired illumination patterns and intensities.

Innovation Solution

The solution involves a modular assembly of solid state light emitting devices connected via electrical buses and radiators, allowing for serial or parallel power supply and heat dissipation through heat pipes and fins, enabling flexible illumination configurations and efficient thermal management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If modular assembly of solid state light emitting devices is implemented, then flexibility in designing illumination arrays of different sizes and configurations is improved, but complexity of power supply and heat dissipation management increases

Engineering Contradiction:
Improveflexibility in designing illumination arraysVSAvoidcomplexity of power supply and heat dissipation management
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The radiator component is designed to perform multiple functions simultaneously: it serves as a heat dissipation structure through its heat pipes and fins, and as an electrical connection interface through the electrical buses integrated into it. This multi-functionality reduces the need for separate components, thereby simplifying the overall system despite the modular configuration.

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

Solution Approach 2:

The patent combines the electrical connection function and thermal management function into a single integrated radiator component. The electrical buses are incorporated within the radiator structure, merging what would traditionally be separate systems (electrical power distribution and heat dissipation) into one unified component that simplifies modular assembly.

Inventive Principle:
Principle #5Merging (Combining)

2Illumination intensity

If multiple solid state light emitting devices are arranged in a package to increase light intensity, then illumination intensity is improved, but heat dissipation challenge increases

Engineering Contradiction:
Improvelight intensityVSAvoidheat dissipation challenge
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

The heat dissipation system is segmented into multiple heat pipes distributed across the radiator, with each heat pipe handling thermal load from specific light emitting devices. This segmentation allows efficient heat distribution from multiple high-power LEDs across a larger surface area, preventing thermal congestion while maintaining high illumination intensity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from planar heat dissipation to three-dimensional heat management by incorporating heat pipes that extend vertically and laterally, with fins arranged in multiple dimensions. This multi-dimensional heat distribution increases the effective heat dissipation surface area, enabling high-power LED arrays to operate at high intensities without excessive temperature rise.

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 allows for automatic interconnection of solid state light emitting devices, providing flexible illumination solutions with efficient heat dissipation and power distribution, enabling customizable illumination patterns and intensities in street lighting applications.

Implementation Method 1

a plurality of parallel heat pipes extending from opposite parallel first and second faces of the base plate

Methodology Applied
Scientific EffectHeat pipe: Heat Pipe

Implementation Method 2

a first radiator thermally coupled to the solid state light emitting source

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

A one or more heat dissipation fins are coupled to each of the heat pipes

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS9285089B2Automatic electrical connection assembly for light modules
Publication Date: 2016.03.15 BRIDGELUX INC
  • US9285089B2 patent drawing
  • US9285089B2 patent drawing
  • US9285089B2 patent drawing

AI summary

An illumination apparatus includes a solid state light emitting source and a first radiator thermally coupled to the solid state light emitting source, wherein the radiator is configured to be connectable to a second apparatus. The illumination apparatus further includes a one or more electrical conductors coupled to the radiator, wherein the electrical conductors are adapted to couple electrically to the solid state light emitting source.