Cooking Hood LED Light Reflector for Even Coverage and Heat Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Incandescent lights in cooking hoods are not energy efficient, and LED lights fail to provide even coverage and are prone to damage from heat in commercial kitchen environments.
Innovation Solution
An LED light system for kitchen hoods featuring a housing with a reflector assembly, an array of LED elements, a cover plate with safety glass, and a power supply circuit, designed to provide efficient illumination with even light distribution and heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED lights are used to replace incandescent bulbs, then energy efficiency is improved, but light distribution evenness deteriorates
Solution Approach 1:
The patent divides the light source into multiple individual LED elements arranged in a grid pattern rather than using a single incandescent bulb. This segmentation allows each LED to contribute to the overall illumination, creating more uniform light distribution across the cooking surface while maintaining the energy efficiency of LED technology.
Solution Approach 2:
The patent introduces a reflective surface positioned below the LED array to redirect downward light back upward. This adds a dimensional element to the light path, bouncing light that would otherwise be lost and redistributing it across the cooking surface, thereby improving light evenness while preserving LED energy efficiency.
2Illumination intensity
If LED lights are mounted close to the cooking surface for illumination, then lighting effectiveness is improved, but heat damage to electronics worsens
Solution Approach 1:
The patent extracts the electronic components from the immediate vicinity of the cooking surface by mounting them on the rear wall of the hood, separated from the heat source. This physical separation protects the electronics from excessive heat while maintaining effective illumination through the positioned LED array and reflective surface.
Solution Approach 2:
The patent introduces a reflective surface as an intermediary element between the LED light source and the cooking surface. This reflective surface can be positioned closer to the cooking area for effective illumination while the electronics remain protected on the rear wall, using the reflector as a mediator to deliver light without exposing electronics to direct heat.
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 LED light system offers energy-efficient illumination with even coverage and protects electronics from heat damage, meeting regulatory requirements for commercial cooking surfaces.
Implementation Method 1
an array of LED light elements positioned at the light reflector top end
Implementation Method 2
a light reflector assembly coupled to the housing, the light reflector assembly including a truncated four sided pyramid shaped reflector
Data Source
AI summary
There is disclosed a cooking hood LED light (10) which is mounted to a cooking hood positioned above a cooking surface. The LED light 10 includes a main housing (11), a reflector assembly (12), an LED lighting circuit (13), and a cover plate (14). The reflector assembly includes a bottom wall having a square opening (34) therein from which extends a truncated pyramid shaped light reflector (35). The cover plate has a square central opening (42) housing a safety glass (47). The LED lighting circuit includes an LED array light panel (51) and an LED power supply (50). The light panel includes an array of LED light elements (54). A clear lens plate (55) having downwardly depending rounded lens tips (56) is coupled to the light panel. A metal heat sink (58) is thermally coupled to the light panel to dissipate heat produced by the light panel.