Refrigerator Door-Within-Door Storage Design for Access Convenience
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Solution Overview
Problem
Conventional refrigerators lack efficient storage solutions and user convenience, particularly in terms of accessing and organizing storage compartments, which affects storage efficiency and appearance.
Innovation Solution
A refrigerator design featuring a first door with a storing device that creates a second storage compartment within the first compartment, accessible through a second door, which is configured to rotate and share a unified appearance with the first door, enhancing storage efficiency and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a second storage compartment is added to the first door, then storage efficiency is improved, but device complexity increases
Solution Approach 1:
The second storage compartment is nested within the first door, creating a door-within-door configuration. This allows the refrigerator to provide additional storage space while maintaining a compact overall structure and avoiding excessive complexity by integrating the second compartment into the existing door framework
Solution Approach 2:
The first door is segmented into multiple functional zones, with the second storage compartment being a distinct, accessible section. This segmentation allows independent access to the second compartment through the second door, improving storage organization and efficiency without requiring complete door opening
2Ease of operation
If a second door is added to access the second compartment, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The door access mechanism is segmented into two independent doors: the first door for main access and the second door for the second storage compartment. This allows users to access frequently used items in the second compartment without opening the entire first door, improving operational convenience by enabling selective access
Solution Approach 2:
The second door is configured to be movable and rotatable relative to the first door, creating a dynamic access system. This dynamic configuration allows the second door to open independently while maintaining its connection to the first door structure, providing ease of operation without excessive mechanical complexity
3Shape
If the second door is made coplanar with the first door, then appearance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The second door is merged with the first door structure such that when both are closed, their front surfaces are coplanar, creating a unified, flush appearance. This merging approach integrates the second door into the overall door assembly, improving aesthetic appearance while the coupling parts provide guidance to minimize alignment precision requirements during manufacturing and assembly
4Reliability
If multiple coupling parts are used to attach the storing device, then reliability is improved, but device complexity increases
Solution Approach 1:
The coupling parts are designed with universal functionality to attach the storing device (frame and basket) to the first door. Multiple coupling parts distribute the attachment function across several locations, improving reliability by providing redundant attachment points while using standardized, simple coupling mechanisms that do not excessively increase overall system complexity
Data Source
AI summary
A refrigerator includes a cabinet that defines a first storage compartment; a first door that is opened or closed to allow or prevent access to an interior of the first storage compartment; a storing device coupled to the first door to define a second storage compartment, wherein, when the first door is closed, the second storage compartment is disposed in the first storage compartment; and a second door connected to the first door and configured to be opened or closed to allow or prevent access to an interior of the second storage compartment, wherein the interior of the second storage compartment is accessible when the first door is closed and the second door is opened, wherein the first door includes a plurality of first coupling parts to which the storing device is coupled, wherein the storing device includes: a frame; and a basket installed on the frame, wherein each of the frame and the basket includes at least one second coupling part interacting with at least one of the plurality of first coupling parts, wherein a front surface of the second door is positioned to be generally coplanar with at least a portion of a front surface of the first door.