Light Fixture Housing with Selective Positioning and Heat Sink

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Solution Overview

Problem

Light fixtures often produce undesirable direct lighting and cannot adapt to changing conditions within a space, and they face heat management issues due to the thermal energy emitted by light sources, which can lead to damage and increased complexity.

Innovation Solution

A light fixture housing that acts as a heat sink and allows for selective positioning by using a bracket system with fins, enabling the light fixture to be oriented in various ways to distribute light effectively and manage heat efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a light fixture uses a permanently mounted housing design, then the fixture is stable and easy to install, but it cannot adapt to changing lighting requirements within a space

Engineering Contradiction:
Improveadaptability to changing lighting requirementsVSAvoidhousing positioning mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The housing is designed with multiple positioning options allowing it to be dynamically repositioned within the bracket at different angles and orientations. This enables the light fixture to adapt to changing lighting requirements while maintaining a relatively simple overall structure, resolving the contradiction between adaptability and device complexity.

Inventive Principle:
Principle #15Dynamics

2Temperature

If heat sinks are added to remove thermal energy from the light fixture, then heat management improves, but the number of parts, weight, and manufacturing costs increase

Engineering Contradiction:
Improveheat dissipation effectivenessVSAvoidnumber of parts
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The housing structure is merged with heat dissipation functionality by incorporating fins directly into the housing design. This integration allows the housing to serve both structural and thermal management functions simultaneously, improving heat dissipation without increasing the number of separate parts, thus resolving the contradiction between temperature control and device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing is designed to perform multiple functions: structural support, light emission containment, and heat dissipation through integrated fins. This multi-functionality reduces the need for separate dedicated heat sink components, thereby improving temperature management while minimizing the increase in part count and manufacturing complexity.

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

3Use of energy by moving object

If light sources emit thermal energy, then the light fixture can function properly, but the thermal energy risks damaging the light fixture and its components

Engineering Contradiction:
Improvelight source functionalityVSAvoidthermal damage risk
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The thermal energy that could potentially damage the light fixture is converted into a beneficial heat dissipation mechanism. The integrated fins are designed to efficiently conduct and dissipate heat from the light source, transforming the harmful thermal effect into a controlled thermal management system that protects the fixture while maintaining light source functionality.

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

4Illumination intensity

If optics are used to reduce direct lighting, then light distribution becomes more uniform, but the optic may melt or burn due to thermal energy

Engineering Contradiction:
Improvelight distribution uniformityVSAvoidoptic durability under thermal stress
Core Design Contradiction:
Illumination intensityVSReliability

Solution Approach 1:

The housing structure is merged with heat dissipation fins positioned to cool the optic component. This integration ensures that the optic is actively cooled by the heat dissipation system, allowing it to maintain its light distribution function without suffering from thermal damage, thus resolving the contradiction between light distribution uniformity and optic durability.

Inventive Principle:
Principle #5Merging (Combining)

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 solution provides adaptable lighting distribution and effective heat management, reducing the risk of damage from thermal energy while minimizing the number of parts in the fixture.

Implementation Method 1

a housing for a light fixture that acts as a heat sink to remove heat from the light fixture

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

acts as a heat sink to remove heat from the light fixture and also provides for selective positioning

Methodology Applied
Scientific EffectHeat sink: Heat Sink

Implementation Method 3

There may a set of fins protruding from the housing

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 4

a set of fins protruding from the housing

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentUS8317369B2Light fixture having selectively positionable housing
Publication Date: 2012.11.27 ABL IP HLDG LLC
  • US8317369B2 patent drawing
  • US8317369B2 patent drawing
  • US8317369B2 patent drawing

AI summary

Light fixtures including a housing that acts as a heat sink, and additionally includes structure to selectively position the light fixture at different orientations. In certain embodiments, the light fixture includes a housing, a light source, and a bracket. Set of fins may protrude from the housing, and flanges may protrude from the bracket. In use, the flanges engage ribs on the housing to support the lighting fixture. By altering the engagement between the flanges and ribs, the light fixture may be re-positioned within the bracket in a number of different orientations, creating a number of light distribution options for the light fixture.