Domestic cooling device with a frame in an internal container
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Solution Overview
Problem
Household refrigeration appliances lack precise definition of the accommodation space, particularly in the front area, leading to imprecise positioning of receiving trays and potential damage to the inner container during insertion, and limited variability in storage conditions for different foods.
Innovation Solution
A non-destructively detachable frame is positioned within the inner container, offset from the rear wall and closer to the loading opening, allowing for precise partitioning of the receiving space and enabling individual storage conditions for different foods by creating separate compartments with adjustable temperature and humidity settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If receiving trays are pushed into the receiving space without a frame structure, then the insertion opening is easily accessible, but the positioning of receiving trays becomes imprecise and they may bump against side walls causing damage
Solution Approach 1:
A frame structure is introduced as an intermediary element between the insertion opening and the receiving trays. The frame includes guide elements that engage with corresponding features on the receiving trays, providing precise positioning and alignment during insertion while preventing lateral movement and contact with side walls.
Solution Approach 2:
The frame structure is divided into multiple components including side walls with guide elements, support elements, and positioning features. This segmentation allows the frame to provide precise positioning functionality while maintaining ease of assembly and accessibility for receiving trays.
2Manufacturing precision
If a frame structure is added to improve positioning precision, then tray insertion precision improves, but the device complexity increases
Solution Approach 1:
The frame structure serves multiple functions simultaneously: it provides positioning guidance for receiving trays, prevents lateral movement, supports the trays during insertion, and defines the insertion opening boundaries. This multi-functionality reduces the need for separate components for each function.
Solution Approach 2:
The frame combines guide elements, support elements, and positioning features into a single integrated structure that attaches to the inner container. This merging reduces the number of separate parts and simplifies the overall device complexity while maintaining positioning precision.
3Reliability
If the receiving space is subdivided into separate compartments with walls, then individual storage volumes are defined, but the flexibility and variability of storage space configuration is reduced
Solution Approach 1:
The frame structure is designed to be removable and reconfigurable, allowing users to dynamically adjust the receiving space configuration. The frame can be attached or detached from the inner container, and receiving trays can be easily inserted or removed, providing flexibility while maintaining defined storage volumes when the frame is installed.
Solution Approach 2:
The frame structure is pre-configured with guide elements and positioning features that automatically align receiving trays into correct positions during insertion. This preliminary configuration ensures proper positioning without requiring complex adjustment mechanisms, maintaining simplicity while defining storage volumes.
Data Source
Figure 1
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AI summary
The invention relates to a household refrigeration appliance (1) with a housing (2) in which a receiving space (3, 43) for food is formed, which is delimited by walls (10, 11, 12, 13, 14) of an inner container (15). , wherein in the inner container (15) a frame (21) is arranged in a non-destructively detachable manner, which is positioned offset to the front at a distance from a rear wall (12) of the inner container (15).