Decorative Frame Assembly With Thickened Edge for Tight Sealing
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Solution Overview
Problem
Existing decorative frames for domestic appliances require complex reshaping processes, leading to inaccurate shapes, material thinning, and increased costs, as well as large sealing gaps and potential contamination due to undercuts.
Innovation Solution
A decorative frame with a thicker edge section created by attaching a separate material part to a base frame, eliminating the need for reshaping and providing a durable, stress-resistant connection that minimizes sealing gaps and avoids undercuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a decorative frame is embodied with uniform thickness, then manufacturing is simpler, but large sealing gaps require expensive seals and complex reshaping processes
Solution Approach 1:
The decorative frame is designed with variable thickness, where the edge-side area has a greater thickness than the inner area. This local variation in geometry allows the thicker edge portion to contact the worktop surface directly, eliminating the need for large sealing gaps and complex reshaping processes while maintaining manufacturing simplicity through modular construction.
2Shape
If the edge profile is mechanically reshaped by deep drawing or punching, then the desired shape is achieved, but shapes have little accuracy and material is thinned
Solution Approach 1:
The decorative frame is divided into two separate components: a base frame and an edge profile. The edge profile is manufactured as a separate precision component with the desired shape already formed, then attached to the base frame. This segmentation eliminates the need for imprecise mechanical reshaping processes and avoids material thinning, as the edge profile can be manufactured with high accuracy using appropriate forming processes without subsequent deformation.
3Adaptability or versatility
If one-piece components are mechanically reshaped, then shape variation is achieved, but processing is extremely expensive and cracks can occur
Solution Approach 1:
The decorative frame is segmented into a base frame and a separate edge profile component. The edge profile is manufactured as a distinct piece with the required shape variations already incorporated, eliminating the need for expensive and risky mechanical reshaping of one-piece components. This approach reduces processing costs by avoiding complex deformation operations and the associated risks of material cracking.
4Object-affected harmful factors
If edge areas are rounded, then safety and aesthetics are improved, but production complexity increases
Solution Approach 1:
The rounding of edge areas is performed during the manufacturing of the edge profile component, before attachment to the base frame. This preliminary action allows the rounding to be integrated into the primary forming process of the edge profile, avoiding the need for additional post-assembly operations and thus not increasing overall production complexity while still achieving the safety and aesthetic benefits.
Data Source
AI summary
A decorative frame for a domestic appliance has an edge-side area and an inner area adjoining the edge-side area inwards. The edge-side area has a thicker section defined by a thickness which is greater than a thickness in the inner area. The thicker section in the edge-side area is realized by a separate material part which is attached to a base frame.