Collapsible Portable Food Warmer with Nested Base Segments
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Solution Overview
Problem
There is a need for a portable device that can warm food in remote locations without access to conventional cooking appliances like microwaves or ovens, addressing the limitations faced by travelers, students, campers, and hunters.
Innovation Solution
A portable food warmer comprising a base, a cover with heating elements, a thermal bag, and a controller, allowing for the warming of food using various power sources and maintaining temperature through a flexible, impact-resistant design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a portable food warmer is designed with multiple base segments for compact storage, then the device portability is improved, but the structural complexity increases
Solution Approach 1:
The base is divided into multiple collapsible segments (base first segment, base second segment, base third segment) that can nest within each other for compact storage and expand to form a stable base structure for food warming
Solution Approach 2:
The base segments are designed to nest within each other when collapsed, with the base second segment nesting within the base first segment and the base third segment nesting within the base second segment, reducing overall size for portability while maintaining structural integrity when deployed
2Strength
If the cover is made flexible and dome-like for impact resistance, then the device durability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The cover is constructed as a flexible dome-like structure made of heat-resistant material that can withstand impact forces while maintaining its protective function, eliminating the need for rigid complex structures
Solution Approach 2:
The cover employs a dome-like curved geometry that naturally distributes impact forces across its surface, enhancing impact resistance while simplifying the structural design compared to flat or angular configurations
3Productivity
If multiple heating zones are implemented in the cover, then the heating effectiveness is improved, but the device complexity increases
Solution Approach 1:
The cover incorporates multiple heating zones with heating elements positioned at different locations (including vents on the inner surface) to provide localized heating where most needed, improving overall heating effectiveness through targeted thermal distribution
4Reliability
If the thermal bag is made with high thermal insulation material, then the thermal retention is improved, but the weight of the device increases
Solution Approach 1:
The thermal bag is constructed from composite materials that provide high thermal insulation performance while controlling weight, combining different material properties to achieve optimal thermal retention without excessive mass
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
Enables quick and effective warming of food in remote locations using diverse power sources, maintaining food temperature and protecting against thermal loss.
Implementation Method 1
a means for heating capable of being in electrical communication with a power supply
Implementation Method 2
The thermal bag may be made out of material that prevents thermal communication with an exterior environment
Implementation Method 3
The inner surface of the cover may include a plurality of vents, each of the vents in fluid communication with the means for heating, so as to convey the heat produced by the means for heating to the base interior
Data Source
AI summary
A portable food warmer comprises a collapsible plastic dish and a warming cover. The warming cover comprises an expandable material having an elastic periphery and a plurality of heating elements. A temperature controlling mechanism is disposed between the power supply and warming cover.