Cooking oven
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Solution Overview
Problem
Existing cooking oven casings require a high number of parts, leading to inefficient insulation and potential damage from steam to electronic components, and are cumbersome to modify in height.
Innovation Solution
A self-supporting cooking oven casing design with embossments and lugs that directly connect adjacent parts, minimizing the number of components and eliminating intermediate fastening means, thereby enhancing thermal insulation and allowing for adjustable height with minimal part exchange.
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 efficiency decreases
Solution Approach 1:
The patent merges the connecting part functionality directly into the side wall by integrating embossments into the side wall structure. This eliminates separate intermediate connecting parts while maintaining the structural stability provided by the connecting features, thereby reducing the total number of parts without compromising assembly strength.
Solution Approach 2:
The side wall with integrated embossments serves multiple functions: it provides structural support, enables mechanical connection to the front frame and cavity wall, and maintains insulation continuity. This multi-functional design eliminates the need for dedicated intermediate connecting parts that would otherwise be required for structural stability.
2Stability of the object's composition
If intermediate connecting parts are used to join casing parts, then the casing structure is stable, but thermal insulation efficiency decreases due to incomplete insulation of intermediate spaces
Solution Approach 1:
By merging the connecting functionality into the side wall itself through integrated embossments, the patent eliminates the intermediate spaces that would exist between separate connecting parts and the casing walls. This allows for complete thermal insulation of the intermediate space without compromising structural stability, as the embossments are formed as integral parts of the side wall.
3Adaptability or versatility
If multiple parts are used in the casing, then assembly flexibility is provided, but modification of casing height requires exchange of several parts
Solution Approach 1:
The bottom part is designed as a universal component that determines the overall casing height through its own dimensional characteristics. This single multi-functional part controls the height parameter without requiring modifications to other casing components, enabling easy height adjustment by replacing only the bottom part while maintaining assembly flexibility through the standardized embossment connection system.
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 design reduces energy losses through improved thermal decoupling and minimizes the risk of steam damage to electronics, while allowing for height adjustments by changing only a single part, the bottom part.
Implementation Method 1
the casing is coupled to the front frame by the frame lug and the first embossment in such way that the casing is substantially thermally decoupled from the cavity wall
Implementation Method 2
the gap encloses the front portion of the cavity. In turn, the gap is enclosed by the front frame. The gap is filled by a gasket having low heat conductivity, so that the front frame is thermally decoupled from the cavity
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A domestic appliance, in particular of a cooking oven, including a casing (10), wherein said the domestic appliance 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) 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) in such way, that a continuous gap (72) is circumferentially formed between the front frame (14) and the cavity wall (16) at least in the region of the front end of the cavity wall, - and wherein the casing (10) is coupled to the front frame in such way that the casing is substantially thermally decoupled from the cavity wall (16) and that the side walls (12) carry the weight of the cavity wall (16) and the front frame (14).