Low-Profile LED Fixture for Harsh Environments
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Solution Overview
Problem
Chicken houses face challenges with lighting due to dust, moisture, and chemical exposure, leading to inconsistent light intensity and short bulb life, particularly with traditional bulb-type lighting and existing LED solutions that suffer from flicker, dust collection, fragility, and high turnover rates.
Innovation Solution
A low-profile LED light fixture with a metal base, printed circuit board, and domed clear plastic cover, designed for attachment to a standard ceiling fixture junction box, providing a waterproof, dustproof, and chemical-proof solution with a circular array of LEDs, heat dissipation, and dimmable functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED bulbs are used to save energy and improve light conditions, then energy efficiency is improved, but flicker during dimming and moisture incursion problems occur
Solution Approach 1:
The light fixture integrates multiple functions into a single unit: the sealed housing provides both structural support and moisture/dust protection, the gasket system simultaneously seals against environmental contaminants and enables safe wire penetration, and the integrated LED assembly combines lighting with heat dissipation features. This multi-functionality resolves the contradiction by creating a reliable fixture that maintains energy efficiency while eliminating flicker and moisture issues through unified design.
Solution Approach 2:
The patent introduces intermediary elements to protect the LED components: a sealed housing acts as an intermediary barrier between the LEDs and the harsh chicken house environment, while the gasket system serves as an intermediary that allows wire passage without compromising the seal. These intermediaries enable the fixture to maintain reliable, flicker-free operation while preserving energy efficiency.
2Ease of operation
If traditional bulb-type lighting is used, then installation is simple, but dust collection on bulbs decreases light intensity and requires manual cleaning
Solution Approach 1:
The patent converts the harmful effect of dust accumulation into a beneficial sealed environment. The airtight housing with gasket seals excludes dust and moisture from reaching the LED components, transforming the problematic dust-filled chicken house environment into a clean, protected internal space. This resolves the contradiction by maintaining simple installation while ensuring consistent light intensity without manual cleaning requirements.
3Use of energy by moving object
If LED bulbs are used in chicken houses, then energy consumption is reduced, but dust collection on LEDs and chemical exposure affect their lifespan
Solution Approach 1:
The patent adopts a modular LED assembly design that functions as a replaceable unit. If the LEDs do fail after extended use, the entire assembly can be quickly replaced without affecting other components. This resolves the contradiction by maintaining low energy consumption while addressing lifespan concerns through an economical replacement strategy rather than attempting to extend individual component life indefinitely.
Solution Approach 2:
The sealed housing and gasket system serve as protective intermediaries that shield the LEDs from dust and chemical exposure throughout their operational life. This allows the LEDs to maintain their extended lifespan by isolating them from the harsh chicken house environment, while continuing to provide energy-efficient lighting.
4Reliability
If a sealed housing is used to protect against moisture and dust, then reliability is improved, but heat dissipation from LEDs becomes more difficult
Solution Approach 1:
The patent employs a sealed housing that functions as a protective shell while incorporating thermal management features. The housing acts as a flexible barrier against moisture and dust, yet includes pathways or materials that allow heat to conduct away from the LED components. This resolves the contradiction by maintaining reliable environmental protection while enabling effective heat dissipation through intelligent housing design.
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 offers reliable, flicker-free, and efficient LED lighting with improved light dispersal and extended lifespan, reducing maintenance needs and providing consistent lighting coverage with reduced dust collection and easy cleaning.
Implementation Method 1
A low-profile LED light fixture
Implementation Method 2
The domed cover is molded from clear plastic through which light from the LEDs may pass
Data Source
Figure 1
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Figure 4
AI summary
A light fixture configured for attachment to a standard ceiling fixture junction box includes a metal base, a printed circuit board, a circular array of LEDs, and a domed cover. The metal base has a hole pattern that matches a mounting screw hole pattern of the standard ceiling fixture junction box. The printed circuit board is attached to a bottom surface the metal base. The circular array of LEDs is attached to an outer perimeter of the printed circuit board. The domed cover is attached to the bottom surface of the metal base and covers the printed circuit board and the circular array of LEDs. The domed cover is molded from clear plastic through which light from the LEDs may pass.