Refrigerator Door Frame Assembly with Detachable Front Panel Coupling
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Solution Overview
Problem
Existing refrigerator doors lack easy and cost-effective solutions for replacing front panels, which limits user customization and increases manufacturing costs due to complex assembly processes and potential deformation issues.
Innovation Solution
A detachable front panel system where the front panel is coupled to a frame assembly using a coupling member with protrusions and grooves, allowing for easy attachment and detachment without additional tools, and preventing deformation by fixing both ends to the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to bond the glass panel to the adhesive plate, then the glass panel can be securely attached, but the glass panel becomes difficult to remove
Solution Approach 1:
The attachment system is divided into separate components: a support part with attachment holes and a panel with attachment protrusions. This segmentation allows the panel to be securely attached during use but easily removed by detaching the protrusions from the holes, resolving the contradiction between strong attachment and ease of removal.
Solution Approach 2:
The attachment mechanism transitions from a static bonded state to a dynamic detachable state. The attachment protrusions can be inserted into attachment holes for secure attachment, and removed when needed, providing dynamic adaptability between secure attachment and easy removal based on operational needs.
2Device complexity
If only the lower portion of the door has support and attachment parts coupled through screws, then the structure is simple, but the supporting force for the glass panel is weakened
Solution Approach 1:
The support system is segmented into multiple attachment points distributed across the door structure rather than concentrated at the lower portion. This segmentation provides balanced supporting force across the glass panel while maintaining structural simplicity through the modular attachment design.
Solution Approach 2:
The support function and attachment function are merged into a single integrated attachment hole system. The same attachment holes serve both to support the glass panel and to attach it, eliminating the need for separate screw coupling structures and providing sufficient supporting force throughout the panel area.
3Strength
If multiple recessed parts and attachment parts are formed to insert into each other, then the panel can be securely attached, but the assembly process becomes complicated and difficult
Solution Approach 1:
The attachment system uses simple segmented components: attachment holes in the support part and attachment protrusions in the panel. This segmentation achieves secure attachment through the protrusion-hole interface while keeping the assembly process simple and straightforward, avoiding complicated multi-part recessed structures.
Solution Approach 2:
Instead of forming recessed parts that require precise alignment and insertion, the design inverts the approach by using protrusions that actively engage with holes. This inversion simplifies the assembly process while maintaining secure attachment, as the protrusions naturally guide and secure the panel without requiring complex alignment procedures.
4Ease of repair
If the glass panel is designed to be detachable for recycling, then separation is easier, but replacement during use becomes difficult
Solution Approach 1:
The panel assembly is segmented into detachable components connected by simple attachment protrusions and holes. This segmentation enables easy separation for recycling while also allowing straightforward replacement during use, as both operations involve the same simple detachable mechanism without requiring different procedures.
Solution Approach 2:
The detachable attachment mechanism serves multiple functions: it enables secure attachment during use, facilitates easy removal for replacement, and allows simple separation for recycling. This universal design resolves the contradiction by making the same detachable structure beneficial for both replacement and recycling operations.
Data Source
AI summary
The present disclosure relates to a refrigerator capable of replacing an outer panel of a refrigerator. The refrigerator door includes: a frame assembly disposed in a line on both sides to form an edge of the refrigerator door, the frame assembly having a hollow portion formed in a longitudinal direction; a front panel coupled to one side of the frame assembly to form a front surface of the refrigerator door; and a rear panel coupled to the other side of the frame assembly to form a rear surface of the refrigerator door. The frame assembly has coupling holes communicating the hollow portion with an outside in one side facing the front panel, the coupling holes being spaced apart from each other in a vertical direction. A coupling protrusion, at least a portion of which passes through the coupling hole and is accommodated in the hollow portion of the frame assembly, is formed on a rear surface of the front panel.