Recessed Dual-Heat Oven Layout for Better Cooking Space Use
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Solution Overview
Problem
Conventional electric ovens with a single heating source at the upper surface inefficiently utilize space and energy for cooking, as the heating source intrudes into the cooking space and lacks optimal distribution of heat sources for efficient food cooking.
Innovation Solution
The oven design incorporates a first recess at the upper portion with a second recess nested within it, featuring a first heat source and a heating module with a second heat source, reflector, and grate assembled as a single unit, positioned such that the grate is between the second heat source and the first heat source, allowing for efficient energy reflection and distribution within the oven chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single heating source is used at the upper surface, then the structure is simple, but the cooking efficiency and space utilization are poor
Solution Approach 1:
The heating system is segmented into multiple independent heating sources (first heating source at the upper surface and second heating source at the lower surface), allowing each to operate independently and contribute to different aspects of cooking efficiency. This segmentation enables better heat distribution and space utilization without excessive complexity.
Solution Approach 2:
The heating sources are distributed across different spatial dimensions (upper surface and lower surface of the oven chamber) rather than concentrated at one location. This dimensional distribution optimizes heat penetration and cooking efficiency while maintaining reasonable structural complexity.
2Power
If the heating source intrudes into the cooking space, then the heating power is increased, but the available cooking space is reduced
Solution Approach 1:
The heating function is segmented between two heating sources positioned at different locations (upper and lower surfaces), allowing each source to provide necessary heating power without requiring either to intrude deeply into the cooking space, thus preserving more cooking volume.
Solution Approach 2:
Heating power is distributed across different spatial dimensions (upper and lower surfaces) rather than concentrated in one location that would intrude into the cooking space. This approach maintains cooking space volume while achieving sufficient heating power through coordinated operation of multiple sources.
3Temperature
If multiple heating sources are used, then the heat distribution is improved, but the risk of grate damage from heat increases
Solution Approach 1:
The heating function is segmented into upper and lower heating sources, distributing the thermal load across different zones. This prevents excessive heat concentration at any single point, particularly protecting the grate area from direct high-temperature damage while maintaining effective heat distribution for cooking.
Solution Approach 2:
Different regions of the oven chamber receive different heating intensities appropriate to their function. The upper heating source provides heat for cooking surfaces, while the lower heating source provides ambient heat without directing excessive heat at the grate, thus protecting it from damage while achieving good overall heat distribution.
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 configuration enables more efficient and economic cooking by intensively heating food with a high-power second heat source at the center and a low-power first heat source at the edge, reducing the risk of grate damage from heat and optimizing the use of the oven chamber's volume.
Implementation Method 1
a reflector to reflect energy from the second heat source into a portion of the oven chamber
Implementation Method 2
a first heat source disposed in the first recess to provide energy for cooking food placed in the oven chamber, and a second heat source disposed in the second recess to provide energy for cooking food placed in the oven chamber
Data Source
AI summary
An oven is provided. The oven includes an oven chamber having an interior surface, the interior surface including a first recess at an upper portion thereof and a second recess provided in a portion of the first recess, a first heat source disposed in the first recess to provide energy for cooking food placed in the oven chamber, and a second heat source disposed in the second recess to provide energy for cooking food placed in the oven chamber.