Portable Battery-Powered Microwave Warmer with Segmented Magnetron
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Solution Overview
Problem
Existing portable food warmers require a power cord and are not suitable for use while traveling or at work due to their large size and lack of portability.
Innovation Solution
A compact, cordless, battery-powered microwave food warmer with a magnetron and rechargeable lithium batteries, allowing for multiple orientations and interchangeable power packs for extended use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a microwave oven is made permanently mounted in a kitchen, then heating function is reliable, but portability is lost and device size becomes too large to carry
Solution Approach 1:
The microwave system is segmented into a permanent kitchen unit and a portable handheld unit. The handheld unit contains only the essential magnetron and battery components, separating the heating function from the power supply and control systems. This allows the heating function to be portable while maintaining reliability through the proven magnetron technology.
Solution Approach 2:
The magnetron is extracted from the traditional kitchen microwave and placed in a portable housing with an integrated battery pack. This extraction removes the dependency on external power cords and kitchen infrastructure, enabling portable operation while preserving the core microwave heating capability.
2Volume of moving object
If a microwave oven is made smaller for portability, then device size is reduced, but power supply becomes dependent on external power cords
Solution Approach 1:
The battery pack is merged with the magnetron housing to create an integrated portable unit. The batteries are positioned directly adjacent to the magnetron, with electrical connections made through the housing structure. This merging eliminates the need for external power cords while maintaining compact size.
Solution Approach 2:
The portable microwave unit serves itself by containing its own power supply (batteries) within the housing. The system is self-sufficient and does not require external infrastructure such as power outlets or power cords, enabling true portability and ease of operation in any location.
3Stability of the object's composition
If batteries are disposed below the chamber, then center of gravity is lowered for stability, but access to batteries for replacement becomes more difficult
Solution Approach 1:
The battery compartment is segmented as a separate removable module from the main housing. The batteries are disposed below the chamber for stability, but the entire battery pack can be removed as a unit through the bottom of the housing. This segmentation allows stable positioning while maintaining ease of repair through simple module replacement.
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 efficient and portable food warming for single or double servings, with the ability to change battery packs for continuous use, addressing the need for a small, versatile, and self-sufficient food warming solution.
Implementation Method 1
A magnetron is disposed in the housing to generate short radio waves into the chamber to warm the food
Implementation Method 2
Rechargeable lithium batteries are disposed in the housing to power the magnetron
Data Source
AI summary
A portable, cordless, battery powered microwave food warmer is sized and powered to be portable. The food warmer has feet on the bottom and the back to accommodate both upright and laid-back orientations. The food warmer can have a pair of battery power packs that match a housing of the food warmer.