Lighting Apparatus Heat Dissipation Plate and Frame

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Solution Overview

Problem

Lighting apparatuses face issues with heat generation, which can lead to component malfunction, reduced efficiency, and shortened lifespan due to excess heat, necessitating effective heat dissipation methods.

Innovation Solution

A lighting apparatus design that incorporates a heat conductive plate and frame in thermal communication with the light source, utilizing conduction, convection, and radiation to efficiently transfer heat away from the light source, with a dissipative portion extending outward to enhance heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a light source is used to provide illumination, then lighting function is achieved, but heat is generated which causes component malfunction and reduces lifespan

Engineering Contradiction:
Improvelighting functionVSAvoidcomponent lifespan
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The patent extracts the harmful heat from the light source by introducing a heat dissipation plate that is thermally coupled to the light source. The plate conducts heat away from the light source to its surface, effectively separating the heat generation zone from the heat dissipation zone, thereby preventing component malfunction while maintaining lighting function.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The heat dissipation plate serves as an intermediary between the light source and the surrounding environment. It receives heat from the light source through thermal conduction and dissipates it through convection and radiation from its outer surface, acting as a thermal mediator that protects components from excessive heat.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Illumination intensity

If heat is generated by the light source, then illumination is produced, but excessive heat diminishes efficiency of components

Engineering Contradiction:
Improveillumination productionVSAvoidcomponent efficiency
Core Design Contradiction:
Illumination intensityVSProductivity

Solution Approach 1:

The heat dissipation plate extracts excess heat from the light source and transfers it to the plate's surface, where it is dissipated to the environment. This extraction prevents the heat from affecting nearby components, thereby maintaining component efficiency while continuing to produce illumination.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent converts the harmful heat into a beneficial thermal management mechanism. The heat that would otherwise damage components is instead conducted to the plate and dissipated through controlled convection and radiation, transforming a harmful byproduct into a manageable thermal flow that protects the system.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Temperature

If heat dissipation structures are added to the lighting apparatus, then heat dissipation is improved, but device complexity increases

Engineering Contradiction:
Improveheat dissipation effectivenessVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The heat dissipation plate is merged with the housing structure of the lighting apparatus, combining the housing's structural function with the heat dissipation function. This integration eliminates the need for separate, complex heat dissipation components while still achieving effective heat removal through the plate's thermal conduction and surface radiation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing structure is given multi-functionality by serving both as the structural enclosure and as the heat dissipation interface. The heat dissipation plate integrated into the housing performs both structural support and thermal management functions, reducing overall device complexity while improving heat dissipation effectiveness.

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

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 design effectively dissipates heat, maintaining cooler operating temperatures, improving component efficiency and lifespan, and directing heat radiation towards cooler areas for optimal dissipation.

Implementation Method 1

The plate can be in thermal communication with the light source and have a dissipative portion that extends outward from the point of thermal communication between the plate and the light source

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

Heat can be transferred in three ways: convection, conduction, and radiation

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

Heat can be transferred in three ways: convection, conduction, and radiation

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 4

The frame can also be in thermal communication with one of the plate or the light source

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS8696171B2Lighting apparatus with heat dissipation system
Publication Date: 2014.04.15 LSI IND INC
  • US8696171B2 patent drawing
  • US8696171B2 patent drawing
  • US8696171B2 patent drawing

AI summary

A lighting apparatus is shown and described. In one aspect, the lighting apparatus includes a light source, a plate, and frame. The light source can include one or more lighting elements that are in thermal communication with the light source. The plate can have a dissipative portion extending outward from a point of thermal communication between the plate and the light source. The frame can at least partially enclose the light source and may also be in thermal communication therewith.