Dual-Wall Cooking Vessel With Conductive Base and Insulating Sides
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Solution Overview
Problem
Existing hollow wall cooking vessels compromise cooking performance due to non-conductive sidewalls, which primarily provide insulation, leading to uneven heating and potential damage from heating elements or flames.
Innovation Solution
A dual wall cooking vessel design with a sealed insulating gap between the inner and outer walls, formed by drawing a high-walled vessel and reverse rolling its bottom, where the upper portion becomes the exterior wall and the lower portion becomes the interior wall, incorporating thermally conductive materials like copper or aluminum to enhance heat distribution and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If hollow wall cooking vessels use non-conductive sidewalls for insulation, then insulating qualities are improved, but cooking performance deteriorates due to uneven heating
Solution Approach 1:
The patent applies different thermal conductivity properties to different parts of the vessel: the bottom is made of thermally conductive material for efficient heat transfer, while the sidewalls are made of insulating material for heat retention. This local differentiation resolves the contradiction by optimizing each region for its specific function.
Solution Approach 2:
The vessel is segmented into distinct functional zones: a conductive bottom portion for heating and insulating sidewall portions for heat retention. This segmentation allows each part to perform its specialized function without compromising the other.
2Loss of energy
If hollow wall cooking vessels use insulating sidewalls, then heat retention is improved, but damage or discoloration from heating elements occurs
Solution Approach 1:
The bottom of the vessel uses thermally conductive material to distribute heat evenly and prevent localized overheating that causes damage or discoloration, while the sidewalls use insulating material for heat retention.
Solution Approach 2:
A reflective layer is introduced between the heating element and the vessel material to redirect and distribute heat more evenly, preventing concentrated heat exposure that causes damage while maintaining overall heat retention.
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 dual wall design ensures uniform heating and retention of cooked food, preventing damage from heating elements while maintaining insulation, thus improving cooking performance without compromising insulating qualities.
Implementation Method 1
incorporating thermally conductive materials like copper or aluminum to enhance heat distribution and retention
Implementation Method 2
a cavity is formed between the inner surface of the outer vessel and the outer surface of the inner vessel
Data Source
Figure 1
Figure 2A~2H
Figure 3A~4D
AI summary
A dual wall cooking vessel (100) comprising an inner cooking portion or shell (108) with a thermally conductive outer cladding (105) that terminates prior to the interior of the rim of the cooking vessel is described, the construction provides uniform temperature during the cooking process, yet minimizes heat loss after cooking.