Elevated Microwave Heating Tray with Venting Apertures
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Solution Overview
Problem
Microwave ovens tend to cook food items unevenly, failing to achieve a balanced heating and browning of the crust or dough of food items like pizzas and sandwiches.
Innovation Solution
The use of a microwavable construct with elevated platforms and microwave energy interactive materials that direct heat more efficiently to the food item, reducing heat loss to the oven turntable or floor, and incorporating adjustable side walls and venting apertures to enhance browning and crisping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If food items are heated directly on the microwave turntable or floor, then heating is simple and convenient, but heat is lost to the turntable or floor resulting in uneven cooking and inability to achieve browning and crisping
Solution Approach 1:
The invention elevates the food item from the horizontal plane of the turntable/floor to a vertical platform structure. This dimensional change creates space between the food and the microwave oven floor, preventing direct heat transfer to the turntable or floor and reducing energy loss. The platform raises the food item into a different spatial dimension where heat can be retained more effectively.
Solution Approach 2:
The construct acts as an intermediary between the microwave energy and the food item. The platform and side walls create a contained environment that mediates heat distribution, directing microwave energy more efficiently to the food while preventing heat loss to surrounding surfaces. This intermediary structure enables controlled heating that achieves both thorough cooking and surface browning.
2Productivity
If microwave energy is directed efficiently to heat the food, then heating speed improves, but achieving balanced heating and browning of the crust remains difficult
Solution Approach 1:
The construct provides different heating conditions for different parts of the food item. The platform and side walls create localized microenvironments that concentrate microwave energy on specific areas, enabling the crust to receive intensified energy for browning while the interior receives adequate energy for thorough heating. This local quality differentiation achieves both speed and balance.
Solution Approach 2:
By elevating the food vertically and creating three-dimensional containment with side walls, the construct enables multi-directional heat distribution. This spatial arrangement allows microwave energy to penetrate and heat the food from multiple angles simultaneously, achieving uniform interior heating while concentrating energy on the crust surfaces for browning.
3Manufacturing precision
If the construct includes elevated platforms and side walls to retain heat, then browning and crisping improve, but the device complexity increases
Solution Approach 1:
The construct utilizes thin panel structures folded into three-dimensional forms to create the platform and side walls. These thin-film-like panels provide the necessary containment and heat retention functionality while minimizing material usage and structural complexity. The folded design achieves effective heat trapping with minimal added complexity.
Solution Approach 2:
The construct is divided into discrete functional components: a platform portion for elevating the food, side wall portions for heat retention, and venting apertures for air circulation. This segmentation allows each component to perform its specific function optimally while keeping the overall structure manageable and not overly complex.
4Manufacturing precision
If heat is retained within the construct to improve browning, then cooking quality improves, but air circulation may be restricted
Solution Approach 1:
The construct incorporates venting apertures that create a porous or permeable structure in the side walls and/or platform. These openings allow air to circulate through the construct while maintaining the heat retention environment. The porous design enables selective passage of air molecules while trapping thermal energy, resolving the contradiction between heat retention and air circulation.
Solution Approach 2:
The venting apertures are strategically positioned and sized to provide localized air circulation pathways without compromising the overall heat retention capability. This local modification allows controlled air flow in specific areas while maintaining heat trapping in other areas, achieving both browning quality and adequate air circulation.
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
This solution improves microwave heating efficiency, ensuring thorough heating and browning of the food item's crust by retaining heat and allowing for better air circulation, resulting in enhanced cooking results.
Implementation Method 1
The construct includes a platform comprising a microwave energy interactive material
Implementation Method 2
By elevating the food item in this manner, more heat may be retained by and/or directed to the food item, rather than being lost to the turntable or to the floor of the microwave oven
Implementation Method 3
allowing for better air circulation, resulting in enhanced cooking results
Data Source
AI summary
Various blanks and constructs formed therefrom are provided. The various constructs include features for supporting a food item at an elevated position to enhance the heating, browning, and/or crisping of the food item in a microwave oven.