Elongated LED Fixture Layout for Uniform Refrigerated Case Lighting
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Solution Overview
Problem
Conventional LED lighting fixtures for refrigerated display cases suffer from uneven light distribution, high material and component costs, difficult assembly, and cumbersome housing configurations that hinder custom applications and energy efficiency.
Innovation Solution
The design features elongated LED lighting fixtures with C-shaped structural frames, angled LED modules, and optical assemblies that provide even illumination, integrated heat management, and a low-profile configuration for efficient heat transfer, reducing energy consumption and enhancing installation flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED lighting fixtures use a single linear array of LEDs arranged in one plane, then the fixture structure is simple, but the light distribution becomes uneven with hot spots and limited coverage
Solution Approach 1:
The patent transitions from a single-plane linear LED array to a multi-dimensional configuration where LED arrays are arranged in multiple planes and angled relative to each other. This dimensional expansion allows light to be emitted from multiple angles and planes, achieving uniform 360-degree light distribution throughout the refrigerated space while maintaining reasonable structural complexity through modular design.
2Ease of operation
If conventional LED fixtures use cumbersome housing configurations, then structural support is adequate, but installation flexibility is reduced and custom applications are hindered
Solution Approach 1:
The patent divides the lighting fixture into modular components including separate LED arrays, mounting brackets, and housing sections. This segmentation allows the fixture to be configured in different arrangements (single fixture, multiple fixtures, various orientations) to suit different installation environments and custom applications while maintaining adequate structural support through the modular assembly design.
3Use of energy by moving object
If conventional LED fixtures lack integrated heat management, then component assembly is simpler, but energy efficiency decreases and heat load in refrigerated space increases
Solution Approach 1:
The patent integrates heat management functions directly into the fixture structure by combining LED mounting, heat sinking, and thermal dissipation pathways into a unified design. The mounting brackets and housing structures serve dual purposes of mechanical support and thermal management, creating an integrated system that improves energy efficiency and reduces heat load in the refrigerated space while avoiding the need for separate complex heat management components.
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 achieves improved light distribution, reduced energy consumption, and increased operational efficiency by transferring heat generated by LEDs to the back plate, thereby minimizing heat load in the refrigerated space and extending the life of refrigeration components.
Implementation Method 1
multiple light emitting diodes (LEDs) arrayed in two groups that are angled to each other
Implementation Method 2
optical assemblies that provide even illumination
Implementation Method 3
transferring heat generated by LEDs to the back plate
Data Source
AI summary
An LED light fixture assembly includes an elongated first support member, an elongated second support member spaced from and substantially parallel to the first support member, and a plurality of elongated LED lighting fixtures coupled to and extending between the first support member and the second support member. Each LED lighting fixture includes an elongated structural frame member having a substantially channel shaped support portion, and a mounting portion opposite the support portion. Each LED lighting fixture also includes a plurality of LED light modules secured to and positioned along the mounting portion, and a cover extending along and supported by the mounting portion. The cover is positioned so light emitted from the plurality of LED light modules passes through the cover and away from the mounting portion.