Heated Food Display Lighting and Airflow Layout
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Solution Overview
Problem
Heated food displays typically require separate light sources for illuminating food products and signage, and their air circulation systems often create dead zones due to inefficient port placement, which can affect the aesthetic appeal and effectiveness of product presentation.
Innovation Solution
A food display design that uses a single light source for both illuminating the product and signage, positioned above the container for backlighting, and an air circulation system with strategically placed inlet and outlet ports in the corner posts to enhance air circulation, reducing dead zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If separate light sources are used for illuminating food products and signage, then the illumination quality for each component is improved, but the device complexity and cost increase
Solution Approach 1:
A single light source positioned above the container performs dual functions: illuminating the food product through the translucent ceiling and illuminating the signage through the translucent sign panel. This multi-functional approach eliminates the need for separate light sources while maintaining adequate illumination quality for both purposes.
Solution Approach 2:
The patent combines the food illumination function and signage illumination function into a single lighting system. The light source is strategically positioned to simultaneously serve both translucant surfaces (ceiling and sign panel), merging what would traditionally require separate lighting fixtures.
2Device complexity
If air circulation ports are positioned in the ceiling only, then the device complexity is reduced, but dead zones are created affecting air circulation effectiveness
Solution Approach 1:
The air circulation system is segmented into multiple inlet ports distributed across the ceiling and multiple outlet ports positioned in the front and rear walls. This segmentation of port locations ensures comprehensive air circulation throughout the container, eliminating dead zones that would occur with centralized port placement.
Solution Approach 2:
The patent extends air circulation from a two-dimensional ceiling-only port arrangement to a three-dimensional distribution system by placing inlet ports across the ceiling and outlet ports at multiple locations including front wall, rear wall, and side walls, creating volumetric air circulation that eliminates dead zones.
3Reliability
If multiple corner posts are used as conduits, then the air circulation effectiveness is improved by distributing airflow, but the manufacturing complexity increases
Solution Approach 1:
The corner posts serve dual functions: providing structural support for the container and acting as air circulation conduits. By integrating these two functions into the same structural elements, the patent improves air circulation effectiveness without significantly increasing manufacturing complexity, as the corner posts are standard structural 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 efficiently illuminates both the food and signage using a single light source while improving air circulation by distributing airflow through multiple zones, enhancing product presentation and reducing dead zones, thus providing a more appealing and effective display.
Implementation Method 1
a light assembly including a light source positioned to provide light to both the container and the sign panel
Implementation Method 2
a fan coupled to the container, and a circulation system for circulating gas provided by the fan
Implementation Method 3
a heater for heating the air in the container
Data Source
AI summary
A food display including a container for holding a product and having at least one translucent portion that facilitates viewing the product from outside the container, a sign panel that is coupled to the container and is at least partially translucent, and a light assembly that includes a light source positioned to provide light to both the container and the sign panel. Preferably, the sign panel and the light source are both positioned above an upper plane of the container to facilitate backlighting the sign panel. The food display may further include a fan positioned above the upper plane of the container, and an air circulation system that circulates air within the container. In one embodiment, the container includes a conduit, such as a hollow corner post that supports a side panel of the container, extending from the upper portion to the lower portion.