Refrigerator Storage Plate Frame With Metal Rail for Rigidity
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Solution Overview
Problem
Existing storage plate arrangements in household refrigeration appliances with open carrier frames lack stability and rigidity, leading to mechanical instability and increased assembly complexity, especially when using metal frames which are heavy and costly.
Innovation Solution
A storage plate arrangement featuring a carrier frame with a metal profile rail as a connecting limb, providing torsional rigidity and supporting side limbs, allowing for improved fastening and reduced jamming, while maintaining a lightweight and cost-effective design through roll forming and use of stainless steel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a carrier frame is made entirely from metal to increase rigidity and stability, then mechanical stability is improved, but weight and material costs increase
Solution Approach 1:
The carrier frame combines metal profile rails (providing rigidity and stability) with plastic components (reducing weight and cost). The metal profile rails form the structural backbone while plastic side limbs and covering pieces complete the frame, creating a composite structure that balances mechanical properties with weight reduction.
2Strength
If a carrier frame is made entirely from metal to increase rigidity, then torsional rigidity is improved, but manufacturing costs and assembly complexity increase
Solution Approach 1:
The metal profile rails provide the necessary torsional rigidity for the carrier frame structure, while plastic components are used for less critical structural elements. This composite approach achieves required strength while simplifying assembly through fewer metal fastening operations.
Solution Approach 2:
The carrier frame is divided into distinct functional segments: metal profile rails for structural integrity, plastic side limbs for support, and covering pieces for completion. This segmentation allows each material to be optimized for its specific function while reducing overall assembly complexity.
3Ease of manufacture
If plastic carrier frames are used to reduce weight and cost, then material costs are reduced, but rigidity and mechanical stability deteriorate
Solution Approach 1:
The hybrid structure uses metal profile rails to provide the rigid backbone necessary for mechanical stability, while plastic components are used for side limbs and covering pieces where full rigidity is not required. This composite construction maintains stability while reducing material costs compared to an all-metal frame.
Data Source
AI summary
A storage plate arrangement for installation in a household refrigeration appliance has a first storage plate and a second storage plate, which is separate from the first storage plate, and a carrier frame. The first storage plate and the second storage plate are arranged on the carrier frame. The carrier frame has a guiding arrangement and a storage plate can be displaced by the guiding arrangement relative to the carrier frame and to the other storage plate. The carrier frame is embodied as open when viewed in the peripheral direction. The carrier frame has a first side limb and an opposite-lying second side limb that is separate from the first side limb and the side limbs are connected to a connecting limb that is in turn separate from the side limbs. The connecting limb is a profile rail that is embodied from metal.