Cabinet Mullion LED Lighting for Even Shelf Illumination
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Solution Overview
Problem
Existing LED lighting systems in cabinet display cases struggle to achieve even and consistent light distribution, with previous solutions either requiring complex wiring, increasing costs, or failing to provide adequate illumination when the cabinet door is open.
Innovation Solution
An LED lighting system mounted to a base within a mullion, utilizing a lens to direct light in a 70-90 degree angle for even distribution, reducing wire clutter and allowing for easy installation and manufacturing, with a single electrical conductor needed for each mullion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LEDs are mounted on shelves to illuminate product, then light distribution improves, but wiring complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent combines the LED light source, mounting structure, and wiring system into an integrated shelf assembly. The LEDs are mounted directly onto the shelf structure itself, merging multiple functions (illumination, support, electrical connection) into a single integrated component, thereby reducing overall wiring complexity while maintaining effective light distribution to products.
2Ease of manufacture
If door-mounted lighting is used, then installation is simplified, but light distribution to product becomes inadequate when door is open
Solution Approach 1:
The lighting system is segmented from the door structure and relocated to the shelf assemblies within the cabinet. This segmentation allows the lighting function to be distributed to multiple locations where it can effectively illuminate products regardless of door position, while each individual shelf-mounted LED assembly remains simple to install and replace.
3Illumination intensity
If reflective surfaces are used to redistribute LED light, then light distribution improves, but manufacturing complexity and cost increase
Solution Approach 1:
Rather than using complex reflective surfaces throughout, the patent applies simple reflective properties locally at the shelf surfaces where products are displayed. The shelf material itself is designed with appropriate reflectivity characteristics to redirect light toward products, providing even illumination without requiring additional complex manufacturing steps or components.
4Productivity
If multiple shelves are used in cabinet, then product display capacity increases, but wiring complexity for LED illumination increases proportionally
Solution Approach 1:
The shelf assembly is designed as a universal module that integrates LED lighting functionality into each shelf unit. This multi-functional shelf design allows the same standardized assembly to be used across multiple shelves, where each shelf independently provides both structural support and illumination, eliminating the need for separate wiring runs to each shelf and reducing overall wiring complexity as display capacity increases.
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 system provides consistent and even illumination to products on shelves, reducing wire clutter and manufacturing complexity while maintaining thermal integrity and ease of installation.
Implementation Method 1
The light output of the LEDs being directed via a lens in a manner that projects the light in an even distribution to illuminate product on the shelves of the cabinet display case
Data Source
AI summary
A lighting system utilizing light emitting diode lamps, designed to be mounted on the mullion inside a cabinet display case wherein the distribution of light illuminates the product in an even and consistent manner.