Cooking device wit cooking cavity and insertable grids
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Solution Overview
Problem
Conventional cooking appliances with side wall racks waste space and increase energy consumption due to the need for separate support structures and grates, and require cumbersome removal and storage of food supports during operation.
Innovation Solution
A cooking appliance with movable racks that can fold from a vertical to horizontal position, serving as both a rack and a grate, eliminating the need for separate lateral support and reducing energy usage by integrating the rack into the cooking chamber, with a joint connection to the side wall and optional detachable fixing means for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If separate racks and grates are used in the cooking chamber, then food support functionality is provided, but space is wasted on the sides and energy consumption increases
Solution Approach 1:
The rack and grate are merged into a single integrated component. The rack structure includes horizontal bars that form the grate surface, eliminating the need for separate grate components. This integration reduces the number of parts, saves manufacturing energy, and maximizes the usable cooking space by eliminating gaps between separate components.
Solution Approach 2:
The integrated rack-grate component serves multiple functions simultaneously. It provides structural support as a rack while also serving as a food support surface as a grate. This multi-functionality reduces the total number of components needed in the cooking chamber and eliminates wasted space.
2Ease of manufacture
If separate racks and grates are used, then food support is enabled, but energy is required to produce separate components
Solution Approach 1:
By combining the rack and grate into a single component, the manufacturing process is simplified. Instead of producing separate rack structures and grate surfaces that require assembly, one integrated component is manufactured, reducing total material usage, manufacturing steps, and energy consumption.
3Ease of operation
If food supports are removed and stowed during operation, then space is optimized, but operation becomes cumbersome
Solution Approach 1:
The integrated rack-grate component is permanently mounted in the cooking chamber, eliminating the need for users to remove and store separate food supports during operation. The component serves itself by providing continuous food support functionality without requiring user intervention for assembly or disassembly.
4Strength
If racks are fixed on side walls, then structural support is provided, but lateral space is lost
Solution Approach 1:
The rack structure transitions from a lateral side-wall mounting to a configuration that extends into the cooking chamber space. By using horizontal bars that span across the chamber, the structural support function is maintained while maximizing the lateral usable space for food placement.
Data Source
Figure 1~2
Figure 3~4
AI summary
The grid (8) has resting units fixing the grid in a folding position, where the grid is movable around a joint (12) and aligned to engage a folding position that is parallel to a left side wall (3), right side wall (4) of a cooking chamber (2), and a hinged down horizontal position. The grid is connected with the side walls of the chamber via the joint. The joint comprise a pin that runs in a longitudinal groove, and a movable part i.e. telescopic arm, of a telescopic rail is connected with another grid via another joint.