Temperature-controlled drawer in a refrigerator
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Solution Overview
Problem
Conventional refrigerators lack a mechanism to optimally store different types of food within the fresh food compartment by providing specific temperature settings and feedback on suitable food types for storage in a controlled temperature drawer.
Innovation Solution
A temperature-controlled drawer within the fresh food compartment equipped with a temperature sensor, display, and light system that indicates the best food type for storage based on temperature readings and adjusts lighting according to the compartment's open or closed state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a controlled temperature drawer is provided in the fresh food compartment, then food preservation is improved for specific items requiring colder temperatures, but the system lacks guidance on what food types are suitable for storage at different temperatures
Solution Approach 1:
The system uses temperature sensors to continuously monitor the drawer temperature and provides feedback through a display that indicates the current temperature and suggests appropriate food types for storage at that temperature. This closed-loop feedback system guides users on what food to store based on actual temperature conditions.
Solution Approach 2:
The display acts as an intermediary between the temperature sensor and the user, translating temperature data into actionable food storage recommendations. The light indicators serve as visual mediators that communicate suitable food types without requiring users to interpret numerical temperature values.
2Loss of information
If the drawer provides continuous visual feedback and lighting, then user awareness of storage conditions is improved, but energy consumption increases
Solution Approach 1:
The lighting system operates periodically rather than continuously - the light turns on when the drawer is opened and turns off when closed. This periodic operation provides necessary visual feedback while significantly reducing energy consumption compared to continuous illumination.
Solution Approach 2:
The system uses different colored lights to indicate different temperature conditions and suitable food types, providing rich information feedback through color changes rather than requiring continuous or intense illumination. This allows efficient communication of storage conditions with minimal energy input.
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
Enhances food storage by providing tailored temperature settings and visual feedback for optimal preservation of various food items, ensuring they are stored at the most suitable conditions within the fresh food compartment.
Implementation Method 1
a temperature sensor within the temperature-controlled drawer and/or the fresh food compartment
Implementation Method 2
at least one light within said drawer, wherein the at least one light changes to a first color, based on the food type indicated by the display
Data Source
AI summary
A refrigerator has a temperature-controlled drawer within a fresh food compartment that includes: a temperature sensor within the temperature-controlled drawer and/or the fresh food compartment; a display coupled to the drawer, wherein the display receives an output from the temperature sensor, determines what food type would be best suited for the temperature based on said temperature sensor output, and indicates what type of food it has determined is best for storage therein; at least one light within said drawer, wherein the at least one light changes to a first color, based on the food type indicated by the display, and turns off and on depending on whether the fresh food compartment door is closed or open, respectively.