Oven Door Closed-Frame Support for Stable Glass Assembly
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Solution Overview
Problem
Existing cooking appliance door support structures are complex, leading to increased assembly effort, positional tolerances, and reduced stability, with potential for the door to fall apart if the outer door pane breaks.
Innovation Solution
A single, closed-frame carrier is glued to the inside of the outer door pane, providing mechanical stability and precise positioning, with integrated features like door hinges, grounding, and stiffening elements, ensuring the door remains intact even if the outer pane breaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate carrier elements are individually glued to the outer door pane, then additional components can be attached to them, but the assembly effort increases and positional tolerances occur
Solution Approach 1:
The patent merges multiple separate carrier elements into a single integrated frame structure that is glued to the outer door pane as one piece. This frame includes multiple attachment points and support surfaces that can accommodate hinges, door hooks, and other components, eliminating the need to individually attach multiple separate carriers and reducing assembly complexity while maintaining versatility
2Adaptability or versatility
If multiple separate carrier elements are used, then additional components can be mounted, but positional tolerances occur during attachment
Solution Approach 1:
By combining multiple carrier functions into one monolithic frame structure with pre-defined attachment points and integrated support surfaces, the patent eliminates cumulative positioning errors that occur when multiple separate elements are individually aligned and glued. The single frame is manufactured as one precise component with all mounting locations pre-positioned, ensuring consistent accuracy across all attached components
3Adaptability or versatility
If a multi-part support structure is used, then components can be supported, but adequate support is lost if the outer door pane breaks
Solution Approach 1:
The patent creates a unified frame structure that is glued to the outer door pane, forming an integrated assembly where the frame and pane work together as a single structural unit. This integration ensures that if the pane breaks, the frame remains attached and continues to provide structural support and hold the door together, preventing complete structural failure
Solution Approach 2:
The frame structure is designed in advance to compensate for potential pane failure by providing a backup support system. The frame's rigid structure and strategic attachment points are pre-configured to maintain door integrity even when the glass pane is compromised, cushioning against the harmful effect of complete door collapse
4Ease of manufacture
If separate support elements are attached individually, then the structure can be assembled, but the overall stability of the arrangement is reduced
Solution Approach 1:
The patent combines multiple separate support elements into one continuous frame structure that is glued to the outer door pane as a single component. This unified structure provides continuous structural support around the door opening, creating a rigid stable framework that is more stable than multiple discrete elements while still being manufacturable through standard glazing processes
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 reduces assembly complexity, eliminates positional tolerances, enhances mechanical stability, and promotes safety by maintaining the door's integrity if the outer pane breaks, while allowing for precise placement of additional components.
Implementation Method 1
A carrier (8) designed as a frame that is closed all the way around is glued to an inside (7) of the outer door pane (6)
Data Source
Figure 1~2
AI summary
The invention relates to a door (4) for a domestic appliance (1), having a door outer pane (6), wherein a support (8) formed as a peripheral closed frame is adhesively bonded to an inner face (7) of the door outer pane (6). The invention also relates to a cooking appliance (1) having a door (4).