Modular Outdoor Light Fixture With Sealed LED Cartridges

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Solution Overview

Problem

Current outdoor light fixtures face design limitations due to the need for larger structures and seals to combat weather and moisture, which hinders the adoption of advanced LED technologies and flexibility seen in indoor lighting designs.

Innovation Solution

A linear light fixture device featuring sealed LED lighting cartridges with a linear lens and power supply elements, housed within a modular structure that includes opposed cartridge-receiving zones and a central interior cavity, allowing for easy installation and maintenance, with sealing surfaces and gasket elements to ensure protection against the elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional outdoor light fixture structures are used with larger dimensions and seals to combat weather and moisture, then weather resistance is improved, but device complexity and design flexibility deteriorate

Engineering Contradiction:
Improveweather resistanceVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The light fixture is divided into separate modular components: a housing structure, removable cartridges containing LED modules and power supply elements, and gasket elements. This segmentation allows each component to be optimized independently for weather resistance while maintaining overall design flexibility and simplifying maintenance operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Gasket elements are employed to provide weather sealing between mating surfaces of the modular components. These flexible sealing elements effectively protect against moisture and weather infiltration without requiring bulky structural features, thus maintaining design flexibility while ensuring weather resistance.

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If traditional outdoor light fixture structures with larger dimensions and seals are used, then protection against moisture is improved, but ease of maintenance deteriorates

Engineering Contradiction:
Improvemoisture protectionVSAvoidmaintenance accessibility
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The fixture is segmented into a permanent housing and removable cartridges. The housing with integrated gasket elements provides moisture protection, while the modular cartridges can be easily removed and replaced for maintenance without compromising the sealing integrity of the remaining structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Power supply elements and LED modules are extracted into separate removable cartridges that can be independently accessed and replaced. This extraction maintains effective sealing through the housing-gasket system while dramatically improving maintenance accessibility.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11125400B2Outdoor light fixtures
Publication Date: 2021.09.21 AXIS LIGHTING
  • US11125400B2 patent drawing
  • US11125400B2 patent drawing
  • US11125400B2 patent drawing

AI summary

A light fixture device having at least one sealed LED lighting cartridge and a sealed casing with a lens region along one boundary thereof. The device includes one or more power supply elements extending from or accessible from the casing which are connectible with a power source. A housing of the device has at least one first housing structure defining at least two opposed cartridge-receiving zones. Each of the zones has a corresponding light output region cartridge-receiving and is configured to receive at least one sealed LED lighting cartridge with the lens region aligned with the corresponding light output region. A central interior cavity is provided to accommodate the power supply elements between, at least in part, the cartridge-receiving zones. At least one second housing structure to sealingly engage with the housing structure and sealingly close the central interior cavity.