Refrigerator Support Cage Suspension for Easy Drawer Removal
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Solution Overview
Problem
Existing domestic refrigeration appliances face difficulties in the easy positioning and removal of containers on extension devices due to accurate fits, leading to increased force expenditure and potential damage or wear, as well as challenges in maintaining humidity levels separate from the main refrigeration space.
Innovation Solution
A domestic refrigeration appliance with a support cage system that includes a base plate and retaining elements, allowing for non-destructive suspension on extension rails, providing stable and secure positioning of containers while enabling easy handling and accessibility, and incorporating a humidifying device for independent humidity control in keep-fresh containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the drawer is fixed in position on the running rail with an accurate fit, then the positioning precision is improved, but the ease of operation deteriorates due to increased force expenditure and difficulty in removal
Solution Approach 1:
The coupling element is designed with elastic deformation capability, allowing it to dynamically adapt during insertion and removal. The elastic arm can deform to accommodate the accurate fit during positioning, then rebound to release the drawer during removal, resolving the contradiction between secure positioning and easy operation
Solution Approach 2:
The elastic arm changes its physical state between deformed and restored configurations. During insertion, the arm deforms to allow positioning; during removal, the arm rebounds to release the drawer. This parameter change enables both accurate positioning and easy operation
2Reliability
If the through-pin and coupling element are configured on the running rail with accurate fit, then the reliability of connection is improved, but the device complexity increases due to potential damage and wear
Solution Approach 1:
The elastic arm acts as an intermediary between the through-pin and the drawer coupling element. It provides a buffer that absorbs mechanical shocks and reduces direct contact stress, thereby maintaining connection reliability while reducing wear and damage risk
Solution Approach 2:
The elastic arm is pre-configured to deform and absorb impact forces before they can cause damage to the coupling elements. This beforehand cushioning protects the mechanical components from wear and damage while maintaining secure connection
Data Source
AI summary
A domestic refrigeration appliance has a receiver space for food, which is defined by walls of an internal container. An extension device is arranged on the internal container and is able to be pushed into and pulled out of the receiver space relative to the internal container. A container for receiving food is able to be removably positioned on the extension device. The extension device has a support cage for the container which, viewed in the width direction of the domestic refrigeration appliance, has a base plate and retaining elements arranged thereon on opposing sides and separate from the base plate as lateral cage walls. The retaining elements are configured as suspension elements for the releasable suspension in a non-destructive manner of the support cage on extension rails of the extension device) separate from the support cage.