Refrigerator Door Decorative Frame Anchoring for Adjustable Gap Coverage
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Solution Overview
Problem
Existing built-in refrigeration appliances face challenges in adjusting decorative frames to seamlessly integrate with adjacent furniture due to the complexity of anchoring compensating profiles between the frame and the door leaf, which complicates the structure and limits the versatility of the window frame.
Innovation Solution
A door structure featuring an adjustable decorative frame with a compensating profile that uses an L-profile with divided legs and barbs, allowing for secure anchoring without requiring special adjustments of the window frame, enabling the frame to be used in both built-in and free-standing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a compensating profile is anchored in a slot of the window frame to bridge the gap between the decorative frame and the door leaf, then the gap can be securely covered, but the structure of the window frame becomes complicated and the window frame must be made wider to hold the compensation profile securely
Solution Approach 1:
The holding function for the compensating profile is extracted from the window frame and transferred to the decorative frame itself. The decorative frame now directly anchors the L-shaped compensating profile through its own structure, eliminating the need for the window frame to provide holding features. This simplifies the window frame structure while maintaining secure gap coverage.
Solution Approach 2:
The decorative frame is given multiple functions: it serves both as the visible aesthetic element and as the structural component that anchors the compensating profile. By making the decorative frame self-sufficient in providing the holding function, the system becomes more versatile and the window frame can be used in different configurations without requiring special adjustment features.
2Reliability
If the window frame is made wider to securely hold the compensating profile in a slot, then the profile can be anchored securely, but the window frame cannot be used in free-standing units where it would not be covered by a compensating profile
Solution Approach 1:
The anchoring function is extracted from the window frame and placed on the decorative frame. This allows the window frame to maintain a consistent, simpler width that is suitable for both built-in applications (where a compensating profile is needed) and free-standing applications (where no profile is required), thereby improving versatility.
Solution Approach 2:
The system allows the decorative frame to be positioned at different distances from the door leaf by adjusting the compensating profile length. The L-shaped profile can be cut to different lengths to accommodate various gap sizes, providing dynamic adaptability while the window frame itself remains structurally simple and universal.
3Reliability
If the first leg of the compensating profile is clamped in a gap with limited insertion depth, then the profile can be anchored, but the position of the second leg cannot be varied extensively
Solution Approach 1:
The first leg of the compensating profile is divided into multiple segments or strips by weak points, allowing it to be cut to different lengths. This segmentation enables the second leg to be positioned at various distances from the door leaf while maintaining secure anchoring of the first leg in the gap with limited insertion depth, thereby achieving both reliable anchoring and extensive position variability.
Data Source
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AI summary
The door design for a household appliance comprises a heat-insulating door leaf (2) with a window (4) and a window frame (5), a decorative frame (3) superimposed in the door leaf (2) in an adjustable manner, and an equalizing profile (40) attached to the decorative frame (3), bridging a gap (19) between the decorative frame (3) and the door leaf (2) and abutting to an inner flank (21) of the window frame (5).