Oven Casing Lug Structure for Fewer Parts and Better Insulation
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Solution Overview
Problem
Existing cooking oven casings require a high number of parts, leading to incomplete insulation and potential damage from steam to electronic circuits, and modifying the height of the casing is cumbersome due to the need to exchange multiple parts.
Innovation Solution
A cooking oven casing design with a minimized number of parts, where adjacent parts are directly connected using embossments and lugs, eliminating the need for intermediate supporting structures and allowing for improved thermal insulation and adjustable height through a single bottom part modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If intermediate connecting parts are used to join casing parts, then the casing structure is stable, but the number of parts increases and insulation is incomplete
Solution Approach 1:
The patent merges the intermediate connecting part with the cavity wall to form an integrated structure. The cavity wall itself provides the connecting function through its lateral extensions that engage with the side walls, eliminating the need for separate intermediate connecting parts while maintaining structural stability.
Solution Approach 2:
The cavity wall is designed to serve multiple functions: it encloses the treatment cavity, provides structural support, and acts as a connecting element between side walls through its lateral extensions. This multi-functional design reduces the total number of parts needed in the casing assembly.
2Stability of the object's composition
If intermediate connecting parts are used, then the casing is stable, but insulation gaps remain that allow steam to reach electronic circuits
Solution Approach 1:
By integrating the connecting function into the cavity wall structure itself, the patent eliminates gaps between separate components. The lateral extensions of the cavity wall create a continuous, gap-free connection with the side walls, preventing steam from penetrating through insulation gaps to reach electronic circuits.
3Adaptability or versatility
If multiple parts are exchanged to modify casing height, then the height can be adjusted, but the process is cumbersome and time-consuming
Solution Approach 1:
The bottom part is designed as a universal component that can be used across different casing height configurations. By providing standardized engagement features on the side walls, a single bottom part design can accommodate various heights, eliminating the need to exchange multiple specialized parts when adjusting casing height.
4Device complexity
If a minimized number of parts is used, then the assembly is simpler, but achieving complete insulation becomes more difficult
Solution Approach 1:
The patent combines the cavity wall with connecting extensions to create an integrated structure that eliminates gaps between components. This merging ensures complete thermal insulation with fewer parts, as the integrated design removes the interfaces where heat loss would occur through gaps between separate components.
Data Source
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AI summary
Cooking oven including a casing (10), wherein said cooking oven comprises the following parts: - two side walls (12) forming lateral parts of the casing (10), - a front frame (14) arranged at a front side of the casing (10), - a treatment cavity being at least partially enclosed by at least one cavity wall (16) including at least one upper cavity lug (34.1) and at least one lower cavity lug (34.2) and being arranged inside the casing (10), - a bottom part (36) of the casing (10) arranged beneath the side walls (12), and - a top part (50) of the casing (10) arranged above the side walls (12), wherein - a front end of the at least one cavity wall (16) forms an opening for charging food stuff to be cooked into the treatment cavity (18), wherein - the front frame (14) surrounds said opening circumferentially, - wherein the front frame (14) is coupled to the cavity wall (16) via coupling means (31.1,..., 31.3, 32.1,..., 32.7, 34.1, 34.2), - wherein the coupling means comprise at least one upper frame lug (32.1) and one lower frame lug (32.2), wherein at least one of said upper and lower frame lugs (32.1, 32.2) comprise a first frame lug section (32.3) that is disposed offset relative to a second frame lug section (32.4) of the frame lug in a direction towards one of the side walls and adapted for lying against or supporting a first embossment of the one of the side walls and the second frame lug section (32.4) is disposed in a direction towards the cavity wall and adapted to lie against the corresponding one of said upper and lower cavity lugs (34.1, 34.2).